diff options
Diffstat (limited to 'drivers/staging/vc04_services')
41 files changed, 10675 insertions, 233 deletions
diff --git a/drivers/staging/vc04_services/Kconfig b/drivers/staging/vc04_services/Kconfig index 74094ff..9e27636 100644 --- a/drivers/staging/vc04_services/Kconfig +++ b/drivers/staging/vc04_services/Kconfig @@ -1,11 +1,39 @@ -config BCM2835_VCHIQ - tristate "Videocore VCHIQ" +menuconfig BCM_VIDEOCORE + tristate "Broadcom VideoCore support" depends on HAS_DMA depends on OF depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) default y help + Support for Broadcom VideoCore services including + the BCM2835 family of products which is used + by the Raspberry PI. + +if BCM_VIDEOCORE + +config BCM2835_VCHIQ + tristate "BCM2835 VCHIQ" + help Kernel to VideoCore communication interface for the BCM2835 family of products. Defaults to Y when the Broadcom Videocore services are included in the build, N otherwise. + +if BCM2835_VCHIQ + +config BCM2835_VCHIQ_SUPPORT_MEMDUMP + bool "Support dumping memory contents to debug log" + help + BCM2835 VCHIQ supports the ability to dump the + contents of memory to the debug log. This + is typically only needed by diagnostic tools used + to debug issues with VideoCore. + +endif + +source "drivers/staging/vc04_services/bcm2835-audio/Kconfig" + +source "drivers/staging/vc04_services/bcm2835-camera/Kconfig" + +endif + diff --git a/drivers/staging/vc04_services/Makefile b/drivers/staging/vc04_services/Makefile index 1a9e742..e9a8e13 100644 --- a/drivers/staging/vc04_services/Makefile +++ b/drivers/staging/vc04_services/Makefile @@ -10,5 +10,8 @@ vchiq-objs := \ interface/vchiq_arm/vchiq_util.o \ interface/vchiq_arm/vchiq_connected.o \ +obj-$(CONFIG_SND_BCM2835) += bcm2835-audio/ +obj-$(CONFIG_VIDEO_BCM2835) += bcm2835-camera/ + ccflags-y += -DVCOS_VERIFY_BKPTS=1 -Idrivers/staging/vc04_services -DUSE_VCHIQ_ARM -D__VCCOREVER__=0x04000000 diff --git a/drivers/staging/vc04_services/bcm2835-audio/Kconfig b/drivers/staging/vc04_services/bcm2835-audio/Kconfig new file mode 100644 index 0000000..9f53653 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/Kconfig @@ -0,0 +1,8 @@ +config SND_BCM2835 + tristate "BCM2835 Audio" + depends on ARCH_BCM2835 && SND + select SND_PCM + select BCM2835_VCHIQ + help + Say Y or M if you want to support BCM2835 built in audio + diff --git a/drivers/staging/vc04_services/bcm2835-audio/Makefile b/drivers/staging/vc04_services/bcm2835-audio/Makefile new file mode 100644 index 0000000..d7b88d1 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_SND_BCM2835) += snd-bcm2835.o +snd-bcm2835-objs := bcm2835.o bcm2835-ctl.o bcm2835-pcm.o bcm2835-vchiq.o + +ccflags-y += -Idrivers/staging/vc04_services -D__VCCOREVER__=0x04000000 + diff --git a/drivers/staging/vc04_services/bcm2835-audio/TODO b/drivers/staging/vc04_services/bcm2835-audio/TODO new file mode 100644 index 0000000..73d41fa --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/TODO @@ -0,0 +1,29 @@ +***************************************************************************** +* * +* TODO: BCM2835-AUDIO * +* * +***************************************************************************** + + +1) Document the device tree node + +The downstream tree(the tree that the driver was imported from) at +http://www.github.com/raspberrypi/linux uses this node: + +audio: audio { + compatible = "brcm,bcm2835-audio"; + brcm,pwm-channels = <8>; +}; + +Since the driver requires the use of VCHIQ, it may be useful to have a link +in the device tree to the VCHIQ driver. + +2) Gracefully handle the case where VCHIQ is missing from the device tree or +it has not been initialized yet. + +3) Review error handling and remove duplicate code. + +4) Cleanup the logging mechanism. The driver should probably be using the +standard kernel logging mechanisms such as dev_info, dev_dbg, and friends. + +5) Fix the remaining checkpatch.pl errors and warnings. diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c new file mode 100644 index 0000000..f484bb0 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c @@ -0,0 +1,426 @@ +/***************************************************************************** + * Copyright 2011 Broadcom Corporation. All rights reserved. + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available at + * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + *****************************************************************************/ + +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/jiffies.h> +#include <linux/slab.h> +#include <linux/time.h> +#include <linux/wait.h> +#include <linux/delay.h> +#include <linux/moduleparam.h> +#include <linux/sched.h> + +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/rawmidi.h> +#include <sound/initval.h> +#include <sound/tlv.h> +#include <sound/asoundef.h> + +#include "bcm2835.h" + +/* volume maximum and minimum in terms of 0.01dB */ +#define CTRL_VOL_MAX 400 +#define CTRL_VOL_MIN -10239 /* originally -10240 */ + +static int snd_bcm2835_ctl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) { + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = CTRL_VOL_MIN; + uinfo->value.integer.max = CTRL_VOL_MAX; /* 2303 */ + } else if (kcontrol->private_value == PCM_PLAYBACK_MUTE) { + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + } else if (kcontrol->private_value == PCM_PLAYBACK_DEVICE) { + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = AUDIO_DEST_MAX - 1; + } + return 0; +} + +/* toggles mute on or off depending on the value of nmute, and returns + * 1 if the mute value was changed, otherwise 0 + */ +static int toggle_mute(struct bcm2835_chip *chip, int nmute) +{ + /* if settings are ok, just return 0 */ + if (chip->mute == nmute) + return 0; + + /* if the sound is muted then we need to unmute */ + if (chip->mute == CTRL_VOL_MUTE) { + chip->volume = chip->old_volume; /* copy the old volume back */ + audio_info("Unmuting, old_volume = %d, volume = %d ...\n", chip->old_volume, chip->volume); + } else /* otherwise we mute */ { + chip->old_volume = chip->volume; + chip->volume = 26214; /* set volume to minimum level AKA mute */ + audio_info("Muting, old_volume = %d, volume = %d ...\n", chip->old_volume, chip->volume); + } + + chip->mute = nmute; + return 1; +} + +static int snd_bcm2835_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol); + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); + + if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) + ucontrol->value.integer.value[0] = chip2alsa(chip->volume); + else if (kcontrol->private_value == PCM_PLAYBACK_MUTE) + ucontrol->value.integer.value[0] = chip->mute; + else if (kcontrol->private_value == PCM_PLAYBACK_DEVICE) + ucontrol->value.integer.value[0] = chip->dest; + + mutex_unlock(&chip->audio_mutex); + return 0; +} + +static int snd_bcm2835_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) { + audio_info("Volume change attempted.. volume = %d new_volume = %d\n", chip->volume, (int)ucontrol->value.integer.value[0]); + if (chip->mute == CTRL_VOL_MUTE) { + /* changed = toggle_mute(chip, CTRL_VOL_UNMUTE); */ + changed = 1; /* should return 0 to signify no change but the mixer takes this as the opposite sign (no idea why) */ + goto unlock; + } + if (changed || (ucontrol->value.integer.value[0] != chip2alsa(chip->volume))) { + chip->volume = alsa2chip(ucontrol->value.integer.value[0]); + changed = 1; + } + + } else if (kcontrol->private_value == PCM_PLAYBACK_MUTE) { + /* Now implemented */ + audio_info(" Mute attempted\n"); + changed = toggle_mute(chip, ucontrol->value.integer.value[0]); + + } else if (kcontrol->private_value == PCM_PLAYBACK_DEVICE) { + if (ucontrol->value.integer.value[0] != chip->dest) { + chip->dest = ucontrol->value.integer.value[0]; + changed = 1; + } + } + + if (changed && bcm2835_audio_set_ctls(chip)) + dev_err(chip->card->dev, "Failed to set ALSA controls..\n"); + +unlock: + mutex_unlock(&chip->audio_mutex); + return changed; +} + +static DECLARE_TLV_DB_SCALE(snd_bcm2835_db_scale, CTRL_VOL_MIN, 1, 1); + +static struct snd_kcontrol_new snd_bcm2835_ctl[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .private_value = PCM_PLAYBACK_VOLUME, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + .tlv = {.p = snd_bcm2835_db_scale} + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = PCM_PLAYBACK_MUTE, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = PCM_PLAYBACK_DEVICE, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + }, +}; + +static int snd_bcm2835_spdif_default_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_bcm2835_spdif_default_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol); + int i; + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + for (i = 0; i < 4; i++) + ucontrol->value.iec958.status[i] = + (chip->spdif_status >> (i * 8)) & 0xff; + + mutex_unlock(&chip->audio_mutex); + return 0; +} + +static int snd_bcm2835_spdif_default_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol); + unsigned int val = 0; + int i, change; + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + for (i = 0; i < 4; i++) + val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8); + + change = val != chip->spdif_status; + chip->spdif_status = val; + + mutex_unlock(&chip->audio_mutex); + return change; +} + +static int snd_bcm2835_spdif_mask_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_bcm2835_spdif_mask_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + * bcm2835 supports only consumer mode and sets all other format flags + * automatically. So the only thing left is signalling non-audio content + */ + ucontrol->value.iec958.status[0] = IEC958_AES0_NONAUDIO; + return 0; +} + +static int snd_bcm2835_spdif_stream_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_bcm2835_spdif_stream_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol); + int i; + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + for (i = 0; i < 4; i++) + ucontrol->value.iec958.status[i] = + (chip->spdif_status >> (i * 8)) & 0xff; + + mutex_unlock(&chip->audio_mutex); + return 0; +} + +static int snd_bcm2835_spdif_stream_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol); + unsigned int val = 0; + int i, change; + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + for (i = 0; i < 4; i++) + val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8); + change = val != chip->spdif_status; + chip->spdif_status = val; + + mutex_unlock(&chip->audio_mutex); + return change; +} + +static struct snd_kcontrol_new snd_bcm2835_spdif[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), + .info = snd_bcm2835_spdif_default_info, + .get = snd_bcm2835_spdif_default_get, + .put = snd_bcm2835_spdif_default_put + }, + { + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK), + .info = snd_bcm2835_spdif_mask_info, + .get = snd_bcm2835_spdif_mask_get, + }, + { + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_INACTIVE, + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM), + .info = snd_bcm2835_spdif_stream_info, + .get = snd_bcm2835_spdif_stream_get, + .put = snd_bcm2835_spdif_stream_put, + }, +}; + +int snd_bcm2835_new_ctl(struct bcm2835_chip *chip) +{ + int err; + unsigned int idx; + + strcpy(chip->card->mixername, "Broadcom Mixer"); + for (idx = 0; idx < ARRAY_SIZE(snd_bcm2835_ctl); idx++) { + err = snd_ctl_add(chip->card, + snd_ctl_new1(&snd_bcm2835_ctl[idx], chip)); + if (err < 0) + return err; + } + for (idx = 0; idx < ARRAY_SIZE(snd_bcm2835_spdif); idx++) { + err = snd_ctl_add(chip->card, + snd_ctl_new1(&snd_bcm2835_spdif[idx], chip)); + if (err < 0) + return err; + } + return 0; +} + +static struct snd_kcontrol_new snd_bcm2835_headphones_ctl[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Headphone Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .private_value = PCM_PLAYBACK_VOLUME, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + .tlv = {.p = snd_bcm2835_db_scale} + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Headphone Playback Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = PCM_PLAYBACK_MUTE, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + } +}; + +int snd_bcm2835_new_headphones_ctl(struct bcm2835_chip *chip) +{ + int err; + unsigned int idx; + + strcpy(chip->card->mixername, "Broadcom Mixer"); + for (idx = 0; idx < ARRAY_SIZE(snd_bcm2835_headphones_ctl); idx++) { + err = snd_ctl_add(chip->card, + snd_ctl_new1(&snd_bcm2835_headphones_ctl[idx], + chip)); + if (err) + return err; + } + return 0; +} + +static struct snd_kcontrol_new snd_bcm2835_hdmi[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "HDMI Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .private_value = PCM_PLAYBACK_VOLUME, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + .tlv = {.p = snd_bcm2835_db_scale} + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "HDMI Playback Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = PCM_PLAYBACK_MUTE, + .info = snd_bcm2835_ctl_info, + .get = snd_bcm2835_ctl_get, + .put = snd_bcm2835_ctl_put, + .count = 1, + } +}; + +int snd_bcm2835_new_hdmi_ctl(struct bcm2835_chip *chip) +{ + int err; + unsigned int idx; + + strcpy(chip->card->mixername, "Broadcom Mixer"); + for (idx = 0; idx < ARRAY_SIZE(snd_bcm2835_hdmi); idx++) { + err = snd_ctl_add(chip->card, + snd_ctl_new1(&snd_bcm2835_hdmi[idx], chip)); + if (err) + return err; + } + return 0; +} + diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c new file mode 100644 index 0000000..e8cf0b9 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c @@ -0,0 +1,568 @@ +/***************************************************************************** + * Copyright 2011 Broadcom Corporation. All rights reserved. + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available at + * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + *****************************************************************************/ + +#include <linux/interrupt.h> +#include <linux/slab.h> + +#include <sound/asoundef.h> + +#include "bcm2835.h" + +/* hardware definition */ +static struct snd_pcm_hardware snd_bcm2835_playback_hw = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID), + .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, + .rate_min = 8000, + .rate_max = 48000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = 128 * 1024, + .period_bytes_min = 1 * 1024, + .period_bytes_max = 128 * 1024, + .periods_min = 1, + .periods_max = 128, +}; + +static struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = { + .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 128 * 1024, + .period_bytes_min = 1 * 1024, + .period_bytes_max = 128 * 1024, + .periods_min = 1, + .periods_max = 128, +}; + +static void snd_bcm2835_playback_free(struct snd_pcm_runtime *runtime) +{ + audio_info("Freeing up alsa stream here ..\n"); + kfree(runtime->private_data); + runtime->private_data = NULL; +} + +void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream) +{ + unsigned int consumed = 0; + int new_period = 0; + + + audio_info("alsa_stream=%p substream=%p\n", alsa_stream, + alsa_stream ? alsa_stream->substream : 0); + + if (alsa_stream->open) + consumed = bcm2835_audio_retrieve_buffers(alsa_stream); + + /* We get called only if playback was triggered, So, the number of buffers we retrieve in + * each iteration are the buffers that have been played out already + */ + + if (alsa_stream->period_size) { + if ((alsa_stream->pos / alsa_stream->period_size) != + ((alsa_stream->pos + consumed) / alsa_stream->period_size)) + new_period = 1; + } + audio_debug("updating pos cur: %d + %d max:%d period_bytes:%d, hw_ptr: %d new_period:%d\n", + alsa_stream->pos, + consumed, + alsa_stream->buffer_size, + (int) (alsa_stream->period_size * alsa_stream->substream->runtime->periods), + frames_to_bytes(alsa_stream->substream->runtime, alsa_stream->substream->runtime->status->hw_ptr), + new_period); + if (alsa_stream->buffer_size) { + alsa_stream->pos += consumed & ~(1 << 30); + alsa_stream->pos %= alsa_stream->buffer_size; + } + + if (alsa_stream->substream) { + if (new_period) + snd_pcm_period_elapsed(alsa_stream->substream); + } else { + audio_warning(" unexpected NULL substream\n"); + } +} + +/* open callback */ +static int snd_bcm2835_playback_open_generic( + struct snd_pcm_substream *substream, int spdif) +{ + struct bcm2835_chip *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream; + int idx; + int err; + + + if (mutex_lock_interruptible(&chip->audio_mutex)) { + audio_error("Interrupted whilst waiting for lock\n"); + return -EINTR; + } + audio_info("Alsa open (%d)\n", substream->number); + idx = substream->number; + + if (spdif && chip->opened) { + err = -EBUSY; + goto out; + } else if (!spdif && (chip->opened & (1 << idx))) { + err = -EBUSY; + goto out; + } + if (idx >= MAX_SUBSTREAMS) { + audio_error + ("substream(%d) device doesn't exist max(%d) substreams allowed\n", + idx, MAX_SUBSTREAMS); + err = -ENODEV; + goto out; + } + + /* Check if we are ready */ + if (!(chip->avail_substreams & (1 << idx))) { + /* We are not ready yet */ + audio_error("substream(%d) device is not ready yet\n", idx); + err = -EAGAIN; + goto out; + } + + alsa_stream = kzalloc(sizeof(*alsa_stream), GFP_KERNEL); + if (!alsa_stream) { + err = -ENOMEM; + goto out; + } + + /* Initialise alsa_stream */ + alsa_stream->chip = chip; + alsa_stream->substream = substream; + alsa_stream->idx = idx; + + spin_lock_init(&alsa_stream->lock); + + err = bcm2835_audio_open(alsa_stream); + if (err) { + kfree(alsa_stream); + goto out; + } + runtime->private_data = alsa_stream; + runtime->private_free = snd_bcm2835_playback_free; + if (spdif) { + runtime->hw = snd_bcm2835_playback_spdif_hw; + } else { + /* clear spdif status, as we are not in spdif mode */ + chip->spdif_status = 0; + runtime->hw = snd_bcm2835_playback_hw; + } + /* minimum 16 bytes alignment (for vchiq bulk transfers) */ + snd_pcm_hw_constraint_step(runtime, + 0, + SNDRV_PCM_HW_PARAM_PERIOD_BYTES, + 16); + + chip->alsa_stream[idx] = alsa_stream; + + chip->opened |= (1 << idx); + alsa_stream->open = 1; + alsa_stream->draining = 1; + +out: + mutex_unlock(&chip->audio_mutex); + + + return err; +} + +static int snd_bcm2835_playback_open(struct snd_pcm_substream *substream) +{ + return snd_bcm2835_playback_open_generic(substream, 0); +} + +static int snd_bcm2835_playback_spdif_open(struct snd_pcm_substream *substream) +{ + return snd_bcm2835_playback_open_generic(substream, 1); +} + +/* close callback */ +static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream) +{ + /* the hardware-specific codes will be here */ + + struct bcm2835_chip *chip; + struct snd_pcm_runtime *runtime; + struct bcm2835_alsa_stream *alsa_stream; + + + chip = snd_pcm_substream_chip(substream); + if (mutex_lock_interruptible(&chip->audio_mutex)) { + audio_error("Interrupted whilst waiting for lock\n"); + return -EINTR; + } + runtime = substream->runtime; + alsa_stream = runtime->private_data; + + audio_info("Alsa close\n"); + + /* + * Call stop if it's still running. This happens when app + * is force killed and we don't get a stop trigger. + */ + if (alsa_stream->running) { + int err; + err = bcm2835_audio_stop(alsa_stream); + alsa_stream->running = 0; + if (err) + audio_error(" Failed to STOP alsa device\n"); + } + + alsa_stream->period_size = 0; + alsa_stream->buffer_size = 0; + + if (alsa_stream->open) { + alsa_stream->open = 0; + bcm2835_audio_close(alsa_stream); + } + if (alsa_stream->chip) + alsa_stream->chip->alsa_stream[alsa_stream->idx] = NULL; + /* + * Do not free up alsa_stream here, it will be freed up by + * runtime->private_free callback we registered in *_open above + */ + + chip->opened &= ~(1 << substream->number); + + mutex_unlock(&chip->audio_mutex); + + return 0; +} + +/* hw_params callback */ +static int snd_bcm2835_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; + int err; + + + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + if (err < 0) { + audio_error + (" pcm_lib_malloc failed to allocated pages for buffers\n"); + return err; + } + + alsa_stream->channels = params_channels(params); + alsa_stream->params_rate = params_rate(params); + alsa_stream->pcm_format_width = snd_pcm_format_width(params_format(params)); + + return err; +} + +/* hw_free callback */ +static int snd_bcm2835_pcm_hw_free(struct snd_pcm_substream *substream) +{ + return snd_pcm_lib_free_pages(substream); +} + +/* prepare callback */ +static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct bcm2835_chip *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; + int channels; + int err; + + + if (mutex_lock_interruptible(&chip->audio_mutex)) + return -EINTR; + + /* notify the vchiq that it should enter spdif passthrough mode by + * setting channels=0 (see + * https://github.com/raspberrypi/linux/issues/528) */ + if (chip->spdif_status & IEC958_AES0_NONAUDIO) + channels = 0; + else + channels = alsa_stream->channels; + + err = bcm2835_audio_set_params(alsa_stream, channels, + alsa_stream->params_rate, + alsa_stream->pcm_format_width); + if (err < 0) + audio_error(" error setting hw params\n"); + + + bcm2835_audio_setup(alsa_stream); + + /* in preparation of the stream, set the controls (volume level) of the stream */ + bcm2835_audio_set_ctls(alsa_stream->chip); + + + memset(&alsa_stream->pcm_indirect, 0, sizeof(alsa_stream->pcm_indirect)); + + alsa_stream->pcm_indirect.hw_buffer_size = + alsa_stream->pcm_indirect.sw_buffer_size = + snd_pcm_lib_buffer_bytes(substream); + + alsa_stream->buffer_size = snd_pcm_lib_buffer_bytes(substream); + alsa_stream->period_size = snd_pcm_lib_period_bytes(substream); + alsa_stream->pos = 0; + + audio_debug("buffer_size=%d, period_size=%d pos=%d frame_bits=%d\n", + alsa_stream->buffer_size, alsa_stream->period_size, + alsa_stream->pos, runtime->frame_bits); + + mutex_unlock(&chip->audio_mutex); + return 0; +} + +static void snd_bcm2835_pcm_transfer(struct snd_pcm_substream *substream, + struct snd_pcm_indirect *rec, size_t bytes) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; + void *src = (void *) (substream->runtime->dma_area + rec->sw_data); + int err; + + err = bcm2835_audio_write(alsa_stream, bytes, src); + if (err) + audio_error(" Failed to transfer to alsa device (%d)\n", err); + +} + +static int snd_bcm2835_pcm_ack(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; + struct snd_pcm_indirect *pcm_indirect = &alsa_stream->pcm_indirect; + + pcm_indirect->hw_queue_size = runtime->hw.buffer_bytes_max; + snd_pcm_indirect_playback_transfer(substream, pcm_indirect, + snd_bcm2835_pcm_transfer); + return 0; +} + +/* trigger callback */ +static int snd_bcm2835_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; + int err = 0; + + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + audio_debug("bcm2835_AUDIO_TRIGGER_START running=%d\n", + alsa_stream->running); + if (!alsa_stream->running) { + err = bcm2835_audio_start(alsa_stream); + if (!err) { + alsa_stream->pcm_indirect.hw_io = + alsa_stream->pcm_indirect.hw_data = + bytes_to_frames(runtime, + alsa_stream->pos); + substream->ops->ack(substream); + alsa_stream->running = 1; + alsa_stream->draining = 1; + } else { + audio_error(" Failed to START alsa device (%d)\n", err); + } + } + break; + case SNDRV_PCM_TRIGGER_STOP: + audio_debug + ("bcm2835_AUDIO_TRIGGER_STOP running=%d draining=%d\n", + alsa_stream->running, runtime->status->state == SNDRV_PCM_STATE_DRAINING); + if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) { + audio_info("DRAINING\n"); + alsa_stream->draining = 1; + } else { + audio_info("DROPPING\n"); + alsa_stream->draining = 0; + } + if (alsa_stream->running) { + err = bcm2835_audio_stop(alsa_stream); + if (err != 0) + audio_error(" Failed to STOP alsa device (%d)\n", err); + alsa_stream->running = 0; + } + break; + default: + err = -EINVAL; + } + + return err; +} + +/* pointer callback */ +static snd_pcm_uframes_t +snd_bcm2835_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct bcm2835_alsa_stream *alsa_stream = runtime->private_data; + + + audio_debug("pcm_pointer... (%d) hwptr=%d appl=%d pos=%d\n", 0, + frames_to_bytes(runtime, runtime->status->hw_ptr), + frames_to_bytes(runtime, runtime->control->appl_ptr), + alsa_stream->pos); + + return snd_pcm_indirect_playback_pointer(substream, + &alsa_stream->pcm_indirect, + alsa_stream->pos); +} + +static int snd_bcm2835_pcm_lib_ioctl(struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + int ret = snd_pcm_lib_ioctl(substream, cmd, arg); + + audio_info(" .. substream=%p, cmd=%d, arg=%p (%x) ret=%d\n", substream, + cmd, arg, arg ? *(unsigned *) arg : 0, ret); + return ret; +} + +/* operators */ +static struct snd_pcm_ops snd_bcm2835_playback_ops = { + .open = snd_bcm2835_playback_open, + .close = snd_bcm2835_playback_close, + .ioctl = snd_bcm2835_pcm_lib_ioctl, + .hw_params = snd_bcm2835_pcm_hw_params, + .hw_free = snd_bcm2835_pcm_hw_free, + .prepare = snd_bcm2835_pcm_prepare, + .trigger = snd_bcm2835_pcm_trigger, + .pointer = snd_bcm2835_pcm_pointer, + .ack = snd_bcm2835_pcm_ack, +}; + +static struct snd_pcm_ops snd_bcm2835_playback_spdif_ops = { + .open = snd_bcm2835_playback_spdif_open, + .close = snd_bcm2835_playback_close, + .ioctl = snd_bcm2835_pcm_lib_ioctl, + .hw_params = snd_bcm2835_pcm_hw_params, + .hw_free = snd_bcm2835_pcm_hw_free, + .prepare = snd_bcm2835_pcm_prepare, + .trigger = snd_bcm2835_pcm_trigger, + .pointer = snd_bcm2835_pcm_pointer, + .ack = snd_bcm2835_pcm_ack, +}; + +/* create a pcm device */ +int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels) +{ + struct snd_pcm *pcm; + int err; + + mutex_init(&chip->audio_mutex); + if (mutex_lock_interruptible(&chip->audio_mutex)) { + audio_error("Interrupted whilst waiting for lock\n"); + return -EINTR; + } + err = snd_pcm_new(chip->card, "bcm2835 ALSA", 0, numchannels, 0, &pcm); + if (err < 0) + goto out; + pcm->private_data = chip; + strcpy(pcm->name, "bcm2835 ALSA"); + chip->pcm = pcm; + chip->dest = AUDIO_DEST_AUTO; + chip->volume = alsa2chip(0); + chip->mute = CTRL_VOL_UNMUTE; /*disable mute on startup */ + /* set operators */ + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_bcm2835_playback_ops); + + /* pre-allocation of buffers */ + /* NOTE: this may fail */ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data(GFP_KERNEL), + snd_bcm2835_playback_hw.buffer_bytes_max, + snd_bcm2835_playback_hw.buffer_bytes_max); + + +out: + mutex_unlock(&chip->audio_mutex); + + return 0; +} + +int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip) +{ + struct snd_pcm *pcm; + int err; + + if (mutex_lock_interruptible(&chip->audio_mutex)) { + audio_error("Interrupted whilst waiting for lock\n"); + return -EINTR; + } + err = snd_pcm_new(chip->card, "bcm2835 ALSA", 1, 1, 0, &pcm); + if (err < 0) + goto out; + + pcm->private_data = chip; + strcpy(pcm->name, "bcm2835 IEC958/HDMI"); + chip->pcm_spdif = pcm; + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_bcm2835_playback_spdif_ops); + + /* pre-allocation of buffers */ + /* NOTE: this may fail */ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data(GFP_KERNEL), + snd_bcm2835_playback_spdif_hw.buffer_bytes_max, snd_bcm2835_playback_spdif_hw.buffer_bytes_max); +out: + mutex_unlock(&chip->audio_mutex); + + return 0; +} + +int snd_bcm2835_new_simple_pcm(struct bcm2835_chip *chip, + const char *name, + enum snd_bcm2835_route route, + u32 numchannels) +{ + struct snd_pcm *pcm; + int err; + + mutex_init(&chip->audio_mutex); + + err = snd_pcm_new(chip->card, name, 0, numchannels, + 0, &pcm); + if (err) + return err; + + pcm->private_data = chip; + strcpy(pcm->name, name); + chip->pcm = pcm; + chip->dest = route; + chip->volume = alsa2chip(0); + chip->mute = CTRL_VOL_UNMUTE; + + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_bcm2835_playback_ops); + + snd_pcm_lib_preallocate_pages_for_all( + pcm, + SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data(GFP_KERNEL), + snd_bcm2835_playback_hw.buffer_bytes_max, + snd_bcm2835_playback_hw.buffer_bytes_max); + + return 0; +} + diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c new file mode 100644 index 0000000..5f3d8f2 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c @@ -0,0 +1,875 @@ +/***************************************************************************** + * Copyright 2011 Broadcom Corporation. All rights reserved. + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available at + * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + *****************************************************************************/ + +#include <linux/device.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <linux/io.h> +#include <linux/interrupt.h> +#include <linux/fs.h> +#include <linux/file.h> +#include <linux/mm.h> +#include <linux/syscalls.h> +#include <linux/uaccess.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/atomic.h> +#include <linux/module.h> +#include <linux/completion.h> + +#include "bcm2835.h" + +/* ---- Include Files -------------------------------------------------------- */ + +#include "interface/vchi/vchi.h" +#include "vc_vchi_audioserv_defs.h" + +/* ---- Private Constants and Types ------------------------------------------ */ + +#define BCM2835_AUDIO_STOP 0 +#define BCM2835_AUDIO_START 1 +#define BCM2835_AUDIO_WRITE 2 + +/* Logging macros (for remapping to other logging mechanisms, i.e., printf) */ +#ifdef AUDIO_DEBUG_ENABLE +#define LOG_ERR(fmt, arg...) pr_err("%s:%d " fmt, __func__, __LINE__, ##arg) +#define LOG_WARN(fmt, arg...) pr_info("%s:%d " fmt, __func__, __LINE__, ##arg) +#define LOG_INFO(fmt, arg...) pr_info("%s:%d " fmt, __func__, __LINE__, ##arg) +#define LOG_DBG(fmt, arg...) pr_info("%s:%d " fmt, __func__, __LINE__, ##arg) +#else +#define LOG_ERR(fmt, arg...) pr_err("%s:%d " fmt, __func__, __LINE__, ##arg) +#define LOG_WARN(fmt, arg...) no_printk(fmt, ##arg) +#define LOG_INFO(fmt, arg...) no_printk(fmt, ##arg) +#define LOG_DBG(fmt, arg...) no_printk(fmt, ##arg) +#endif + +struct bcm2835_audio_instance { + unsigned int num_connections; + VCHI_SERVICE_HANDLE_T vchi_handle[VCHI_MAX_NUM_CONNECTIONS]; + struct completion msg_avail_comp; + struct mutex vchi_mutex; + struct bcm2835_alsa_stream *alsa_stream; + int result; + short peer_version; +}; + +static bool force_bulk; + +/* ---- Private Variables ---------------------------------------------------- */ + +/* ---- Private Function Prototypes ------------------------------------------ */ + +/* ---- Private Functions ---------------------------------------------------- */ + +static int bcm2835_audio_stop_worker(struct bcm2835_alsa_stream *alsa_stream); +static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream); +static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream, + unsigned int count, void *src); + +// Routine to send a message across a service + +static int +bcm2835_vchi_msg_queue(VCHI_SERVICE_HANDLE_T handle, + void *data, + unsigned int size) +{ + return vchi_queue_kernel_message(handle, + data, + size); +} + +static const u32 BCM2835_AUDIO_WRITE_COOKIE1 = ('B' << 24 | 'C' << 16 | + 'M' << 8 | 'A'); +static const u32 BCM2835_AUDIO_WRITE_COOKIE2 = ('D' << 24 | 'A' << 16 | + 'T' << 8 | 'A'); + +struct bcm2835_audio_work { + struct work_struct my_work; + struct bcm2835_alsa_stream *alsa_stream; + int cmd; + void *src; + unsigned int count; +}; + +static void my_wq_function(struct work_struct *work) +{ + struct bcm2835_audio_work *w = + container_of(work, struct bcm2835_audio_work, my_work); + int ret = -9; + + switch (w->cmd) { + case BCM2835_AUDIO_START: + ret = bcm2835_audio_start_worker(w->alsa_stream); + break; + case BCM2835_AUDIO_STOP: + ret = bcm2835_audio_stop_worker(w->alsa_stream); + break; + case BCM2835_AUDIO_WRITE: + ret = bcm2835_audio_write_worker(w->alsa_stream, w->count, + w->src); + break; + default: + LOG_ERR(" Unexpected work: %p:%d\n", w->alsa_stream, w->cmd); + break; + } + kfree((void *)work); +} + +int bcm2835_audio_start(struct bcm2835_alsa_stream *alsa_stream) +{ + if (alsa_stream->my_wq) { + struct bcm2835_audio_work *work; + + work = kmalloc(sizeof(*work), GFP_ATOMIC); + /*--- Queue some work (item 1) ---*/ + if (!work) { + LOG_ERR(" .. Error: NULL work kmalloc\n"); + return -ENOMEM; + } + INIT_WORK(&work->my_work, my_wq_function); + work->alsa_stream = alsa_stream; + work->cmd = BCM2835_AUDIO_START; + if (!queue_work(alsa_stream->my_wq, &work->my_work)) { + kfree(work); + return -EBUSY; + } + } + return 0; +} + +int bcm2835_audio_stop(struct bcm2835_alsa_stream *alsa_stream) +{ + if (alsa_stream->my_wq) { + struct bcm2835_audio_work *work; + + work = kmalloc(sizeof(*work), GFP_ATOMIC); + /*--- Queue some work (item 1) ---*/ + if (!work) { + LOG_ERR(" .. Error: NULL work kmalloc\n"); + return -ENOMEM; + } + INIT_WORK(&work->my_work, my_wq_function); + work->alsa_stream = alsa_stream; + work->cmd = BCM2835_AUDIO_STOP; + if (!queue_work(alsa_stream->my_wq, &work->my_work)) { + kfree(work); + return -EBUSY; + } + } + return 0; +} + +int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream, + unsigned int count, void *src) +{ + if (alsa_stream->my_wq) { + struct bcm2835_audio_work *work; + + work = kmalloc(sizeof(*work), GFP_ATOMIC); + /*--- Queue some work (item 1) ---*/ + if (!work) { + LOG_ERR(" .. Error: NULL work kmalloc\n"); + return -ENOMEM; + } + INIT_WORK(&work->my_work, my_wq_function); + work->alsa_stream = alsa_stream; + work->cmd = BCM2835_AUDIO_WRITE; + work->src = src; + work->count = count; + if (!queue_work(alsa_stream->my_wq, &work->my_work)) { + kfree(work); + return -EBUSY; + } + } + return 0; +} + +static void my_workqueue_init(struct bcm2835_alsa_stream *alsa_stream) +{ + alsa_stream->my_wq = alloc_workqueue("my_queue", WQ_HIGHPRI, 1); +} + +static void my_workqueue_quit(struct bcm2835_alsa_stream *alsa_stream) +{ + if (alsa_stream->my_wq) { + flush_workqueue(alsa_stream->my_wq); + destroy_workqueue(alsa_stream->my_wq); + alsa_stream->my_wq = NULL; + } +} + +static void audio_vchi_callback(void *param, + const VCHI_CALLBACK_REASON_T reason, + void *msg_handle) +{ + struct bcm2835_audio_instance *instance = param; + int status; + int msg_len; + struct vc_audio_msg m; + + if (reason != VCHI_CALLBACK_MSG_AVAILABLE) + return; + + if (!instance) { + LOG_ERR(" .. instance is null\n"); + BUG(); + return; + } + if (!instance->vchi_handle[0]) { + LOG_ERR(" .. instance->vchi_handle[0] is null\n"); + BUG(); + return; + } + status = vchi_msg_dequeue(instance->vchi_handle[0], + &m, sizeof(m), &msg_len, VCHI_FLAGS_NONE); + if (m.type == VC_AUDIO_MSG_TYPE_RESULT) { + LOG_DBG(" .. instance=%p, m.type=VC_AUDIO_MSG_TYPE_RESULT, success=%d\n", + instance, m.u.result.success); + instance->result = m.u.result.success; + complete(&instance->msg_avail_comp); + } else if (m.type == VC_AUDIO_MSG_TYPE_COMPLETE) { + struct bcm2835_alsa_stream *alsa_stream = instance->alsa_stream; + + LOG_DBG(" .. instance=%p, m.type=VC_AUDIO_MSG_TYPE_COMPLETE, complete=%d\n", + instance, m.u.complete.count); + if (m.u.complete.cookie1 != BCM2835_AUDIO_WRITE_COOKIE1 || + m.u.complete.cookie2 != BCM2835_AUDIO_WRITE_COOKIE2) + LOG_ERR(" .. response is corrupt\n"); + else if (alsa_stream) { + atomic_add(m.u.complete.count, + &alsa_stream->retrieved); + bcm2835_playback_fifo(alsa_stream); + } else { + LOG_ERR(" .. unexpected alsa_stream=%p\n", + alsa_stream); + } + } else { + LOG_ERR(" .. unexpected m.type=%d\n", m.type); + } +} + +static struct bcm2835_audio_instance * +vc_vchi_audio_init(VCHI_INSTANCE_T vchi_instance, + VCHI_CONNECTION_T **vchi_connections, + unsigned int num_connections) +{ + unsigned int i; + struct bcm2835_audio_instance *instance; + int status; + int ret; + + LOG_DBG("%s: start", __func__); + + if (num_connections > VCHI_MAX_NUM_CONNECTIONS) { + LOG_ERR("%s: unsupported number of connections %u (max=%u)\n", + __func__, num_connections, VCHI_MAX_NUM_CONNECTIONS); + + return ERR_PTR(-EINVAL); + } + /* Allocate memory for this instance */ + instance = kzalloc(sizeof(*instance), GFP_KERNEL); + if (!instance) + return ERR_PTR(-ENOMEM); + + instance->num_connections = num_connections; + + /* Create a lock for exclusive, serialized VCHI connection access */ + mutex_init(&instance->vchi_mutex); + /* Open the VCHI service connections */ + for (i = 0; i < num_connections; i++) { + SERVICE_CREATION_T params = { + .version = VCHI_VERSION_EX(VC_AUDIOSERV_VER, VC_AUDIOSERV_MIN_VER), + .service_id = VC_AUDIO_SERVER_NAME, + .connection = vchi_connections[i], + .rx_fifo_size = 0, + .tx_fifo_size = 0, + .callback = audio_vchi_callback, + .callback_param = instance, + .want_unaligned_bulk_rx = 1, //TODO: remove VCOS_FALSE + .want_unaligned_bulk_tx = 1, //TODO: remove VCOS_FALSE + .want_crc = 0 + }; + + LOG_DBG("%s: about to open %i\n", __func__, i); + status = vchi_service_open(vchi_instance, ¶ms, + &instance->vchi_handle[i]); + + LOG_DBG("%s: opened %i: %p=%d\n", __func__, i, instance->vchi_handle[i], status); + if (status) { + LOG_ERR("%s: failed to open VCHI service connection (status=%d)\n", + __func__, status); + ret = -EPERM; + goto err_close_services; + } + /* Finished with the service for now */ + vchi_service_release(instance->vchi_handle[i]); + } + + LOG_DBG("%s: okay\n", __func__); + return instance; + +err_close_services: + for (i = 0; i < instance->num_connections; i++) { + LOG_ERR("%s: closing %i: %p\n", __func__, i, instance->vchi_handle[i]); + if (instance->vchi_handle[i]) + vchi_service_close(instance->vchi_handle[i]); + } + + kfree(instance); + LOG_ERR("%s: error\n", __func__); + + return ERR_PTR(ret); +} + +static int vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance) +{ + unsigned int i; + + + if (!instance) { + LOG_ERR("%s: invalid handle %p\n", __func__, instance); + + return -1; + } + + LOG_DBG(" .. about to lock (%d)\n", instance->num_connections); + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", + instance->num_connections); + return -EINTR; + } + + /* Close all VCHI service connections */ + for (i = 0; i < instance->num_connections; i++) { + int status; + + LOG_DBG(" .. %i:closing %p\n", i, instance->vchi_handle[i]); + vchi_service_use(instance->vchi_handle[i]); + + status = vchi_service_close(instance->vchi_handle[i]); + if (status) { + LOG_DBG("%s: failed to close VCHI service connection (status=%d)\n", + __func__, status); + } + } + + mutex_unlock(&instance->vchi_mutex); + + kfree(instance); + + + return 0; +} + +static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream) +{ + static VCHI_INSTANCE_T vchi_instance; + static VCHI_CONNECTION_T *vchi_connection; + static int initted; + struct bcm2835_audio_instance *instance = + (struct bcm2835_audio_instance *)alsa_stream->instance; + int ret; + + + LOG_INFO("%s: start\n", __func__); + BUG_ON(instance); + if (instance) { + LOG_ERR("%s: VCHI instance already open (%p)\n", + __func__, instance); + instance->alsa_stream = alsa_stream; + alsa_stream->instance = instance; + ret = 0; // xxx todo -1; + goto err_free_mem; + } + + /* Initialize and create a VCHI connection */ + if (!initted) { + ret = vchi_initialise(&vchi_instance); + if (ret) { + LOG_ERR("%s: failed to initialise VCHI instance (ret=%d)\n", + __func__, ret); + + ret = -EIO; + goto err_free_mem; + } + ret = vchi_connect(NULL, 0, vchi_instance); + if (ret) { + LOG_ERR("%s: failed to connect VCHI instance (ret=%d)\n", + __func__, ret); + + ret = -EIO; + goto err_free_mem; + } + initted = 1; + } + + /* Initialize an instance of the audio service */ + instance = vc_vchi_audio_init(vchi_instance, &vchi_connection, 1); + + if (IS_ERR(instance)) { + LOG_ERR("%s: failed to initialize audio service\n", __func__); + + ret = PTR_ERR(instance); + goto err_free_mem; + } + + instance->alsa_stream = alsa_stream; + alsa_stream->instance = instance; + + LOG_DBG(" success !\n"); + ret = 0; +err_free_mem: + kfree(vchi_instance); + + return ret; +} + +int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream) +{ + struct bcm2835_audio_instance *instance; + struct vc_audio_msg m; + int status; + int ret; + + + my_workqueue_init(alsa_stream); + + ret = bcm2835_audio_open_connection(alsa_stream); + if (ret) { + ret = -1; + goto exit; + } + instance = alsa_stream->instance; + LOG_DBG(" instance (%p)\n", instance); + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + m.type = VC_AUDIO_MSG_TYPE_OPEN; + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); +exit: + return ret; +} + +static int bcm2835_audio_set_ctls_chan(struct bcm2835_alsa_stream *alsa_stream, + struct bcm2835_chip *chip) +{ + struct vc_audio_msg m; + struct bcm2835_audio_instance *instance = alsa_stream->instance; + int status; + int ret; + + + LOG_INFO(" Setting ALSA dest(%d), volume(%d)\n", + chip->dest, chip->volume); + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", + instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + instance->result = -1; + + m.type = VC_AUDIO_MSG_TYPE_CONTROL; + m.u.control.dest = chip->dest; + m.u.control.volume = chip->volume; + + /* Create the message available completion */ + init_completion(&instance->msg_avail_comp); + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + + /* We are expecting a reply from the videocore */ + wait_for_completion(&instance->msg_avail_comp); + + if (instance->result) { + LOG_ERR("%s: result=%d\n", __func__, instance->result); + + ret = -1; + goto unlock; + } + + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); + + return ret; +} + +int bcm2835_audio_set_ctls(struct bcm2835_chip *chip) +{ + int i; + int ret = 0; + + LOG_DBG(" Setting ALSA dest(%d), volume(%d)\n", chip->dest, chip->volume); + + /* change ctls for all substreams */ + for (i = 0; i < MAX_SUBSTREAMS; i++) { + if (chip->avail_substreams & (1 << i)) { + if (!chip->alsa_stream[i]) { + LOG_DBG(" No ALSA stream available?! %i:%p (%x)\n", i, chip->alsa_stream[i], chip->avail_substreams); + ret = 0; + } else if (bcm2835_audio_set_ctls_chan(chip->alsa_stream[i], chip) != 0) { + LOG_ERR("Couldn't set the controls for stream %d\n", i); + ret = -1; + } else { + LOG_DBG(" Controls set for stream %d\n", i); + } + } + } + return ret; +} + +int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream, + unsigned int channels, unsigned int samplerate, + unsigned int bps) +{ + struct vc_audio_msg m; + struct bcm2835_audio_instance *instance = alsa_stream->instance; + int status; + int ret; + + + LOG_INFO(" Setting ALSA channels(%d), samplerate(%d), bits-per-sample(%d)\n", + channels, samplerate, bps); + + /* resend ctls - alsa_stream may not have been open when first send */ + ret = bcm2835_audio_set_ctls_chan(alsa_stream, alsa_stream->chip); + if (ret) { + LOG_ERR(" Alsa controls not supported\n"); + return -EINVAL; + } + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + instance->result = -1; + + m.type = VC_AUDIO_MSG_TYPE_CONFIG; + m.u.config.channels = channels; + m.u.config.samplerate = samplerate; + m.u.config.bps = bps; + + /* Create the message available completion */ + init_completion(&instance->msg_avail_comp); + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + + /* We are expecting a reply from the videocore */ + wait_for_completion(&instance->msg_avail_comp); + + if (instance->result) { + LOG_ERR("%s: result=%d", __func__, instance->result); + + ret = -1; + goto unlock; + } + + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); + + return ret; +} + +int bcm2835_audio_setup(struct bcm2835_alsa_stream *alsa_stream) +{ + + + return 0; +} + +static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream) +{ + struct vc_audio_msg m; + struct bcm2835_audio_instance *instance = alsa_stream->instance; + int status; + int ret; + + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", + instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + m.type = VC_AUDIO_MSG_TYPE_START; + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); + return ret; +} + +static int bcm2835_audio_stop_worker(struct bcm2835_alsa_stream *alsa_stream) +{ + struct vc_audio_msg m; + struct bcm2835_audio_instance *instance = alsa_stream->instance; + int status; + int ret; + + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", + instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + m.type = VC_AUDIO_MSG_TYPE_STOP; + m.u.stop.draining = alsa_stream->draining; + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); + return ret; +} + +int bcm2835_audio_close(struct bcm2835_alsa_stream *alsa_stream) +{ + struct vc_audio_msg m; + struct bcm2835_audio_instance *instance = alsa_stream->instance; + int status; + int ret; + + + my_workqueue_quit(alsa_stream); + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", + instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + m.type = VC_AUDIO_MSG_TYPE_CLOSE; + + /* Create the message available completion */ + init_completion(&instance->msg_avail_comp); + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + ret = -1; + goto unlock; + } + + /* We are expecting a reply from the videocore */ + wait_for_completion(&instance->msg_avail_comp); + + if (instance->result) { + LOG_ERR("%s: failed result (result=%d)\n", + __func__, instance->result); + + ret = -1; + goto unlock; + } + + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); + + /* Stop the audio service */ + vc_vchi_audio_deinit(instance); + alsa_stream->instance = NULL; + + return ret; +} + +static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream, + unsigned int count, void *src) +{ + struct vc_audio_msg m; + struct bcm2835_audio_instance *instance = alsa_stream->instance; + int status; + int ret; + + + LOG_INFO(" Writing %d bytes from %p\n", count, src); + + if (mutex_lock_interruptible(&instance->vchi_mutex)) { + LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", + instance->num_connections); + return -EINTR; + } + vchi_service_use(instance->vchi_handle[0]); + + if (instance->peer_version == 0 && + vchi_get_peer_version(instance->vchi_handle[0], &instance->peer_version) == 0) + LOG_DBG("%s: client version %d connected\n", __func__, instance->peer_version); + + m.type = VC_AUDIO_MSG_TYPE_WRITE; + m.u.write.count = count; + // old version uses bulk, new version uses control + m.u.write.max_packet = instance->peer_version < 2 || force_bulk ? 0 : 4000; + m.u.write.cookie1 = BCM2835_AUDIO_WRITE_COOKIE1; + m.u.write.cookie2 = BCM2835_AUDIO_WRITE_COOKIE2; + m.u.write.silence = src == NULL; + + /* Send the message to the videocore */ + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + &m, sizeof(m)); + + if (status) { + LOG_ERR("%s: failed on vchi_msg_queue (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + if (!m.u.write.silence) { + if (!m.u.write.max_packet) { + /* Send the message to the videocore */ + status = vchi_bulk_queue_transmit(instance->vchi_handle[0], + src, count, + 0 * VCHI_FLAGS_BLOCK_UNTIL_QUEUED + + + 1 * VCHI_FLAGS_BLOCK_UNTIL_DATA_READ, + NULL); + } else { + while (count > 0) { + int bytes = min_t(int, m.u.write.max_packet, count); + + status = bcm2835_vchi_msg_queue(instance->vchi_handle[0], + src, bytes); + src = (char *)src + bytes; + count -= bytes; + } + } + if (status) { + LOG_ERR("%s: failed on vchi_bulk_queue_transmit (status=%d)\n", + __func__, status); + + ret = -1; + goto unlock; + } + } + ret = 0; + +unlock: + vchi_service_release(instance->vchi_handle[0]); + mutex_unlock(&instance->vchi_mutex); + return ret; +} + +/** + * Returns all buffers from arm->vc + */ +void bcm2835_audio_flush_buffers(struct bcm2835_alsa_stream *alsa_stream) +{ +} + +/** + * Forces VC to flush(drop) its filled playback buffers and + * return them the us. (VC->ARM) + */ +void bcm2835_audio_flush_playback_buffers(struct bcm2835_alsa_stream *alsa_stream) +{ +} + +unsigned int bcm2835_audio_retrieve_buffers(struct bcm2835_alsa_stream *alsa_stream) +{ + unsigned int count = atomic_read(&alsa_stream->retrieved); + + atomic_sub(count, &alsa_stream->retrieved); + return count; +} + +module_param(force_bulk, bool, 0444); +MODULE_PARM_DESC(force_bulk, "Force use of vchiq bulk for audio"); diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c new file mode 100644 index 0000000..8f2d508 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c @@ -0,0 +1,472 @@ +/***************************************************************************** + * Copyright 2011 Broadcom Corporation. All rights reserved. + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available at + * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + *****************************************************************************/ + +#include <linux/platform_device.h> + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/of.h> + +#include "bcm2835.h" + +static bool enable_hdmi; +static bool enable_headphones; +static bool enable_compat_alsa = true; + +module_param(enable_hdmi, bool, 0444); +MODULE_PARM_DESC(enable_hdmi, "Enables HDMI virtual audio device"); +module_param(enable_headphones, bool, 0444); +MODULE_PARM_DESC(enable_headphones, "Enables Headphones virtual audio device"); +module_param(enable_compat_alsa, bool, 0444); +MODULE_PARM_DESC(enable_compat_alsa, + "Enables ALSA compatibility virtual audio device"); + +static void snd_devm_unregister_child(struct device *dev, void *res) +{ + struct device *childdev = *(struct device **)res; + + device_unregister(childdev); +} + +static int snd_devm_add_child(struct device *dev, struct device *child) +{ + struct device **dr; + int ret; + + dr = devres_alloc(snd_devm_unregister_child, sizeof(*dr), GFP_KERNEL); + if (!dr) + return -ENOMEM; + + ret = device_add(child); + if (ret) { + devres_free(dr); + return ret; + } + + *dr = child; + devres_add(dev, dr); + + return 0; +} + +static struct device * +snd_create_device(struct device *parent, + struct device_driver *driver, + const char *name) +{ + struct device *device; + int ret; + + device = devm_kzalloc(parent, sizeof(*device), GFP_KERNEL); + if (!device) + return ERR_PTR(-ENOMEM); + + device_initialize(device); + device->parent = parent; + device->driver = driver; + + dev_set_name(device, "%s", name); + + ret = snd_devm_add_child(parent, device); + if (ret) + return ERR_PTR(ret); + + return device; +} + +static int snd_bcm2835_free(struct bcm2835_chip *chip) +{ + kfree(chip); + return 0; +} + +/* component-destructor + * (see "Management of Cards and Components") + */ +static int snd_bcm2835_dev_free(struct snd_device *device) +{ + return snd_bcm2835_free(device->device_data); +} + +/* chip-specific constructor + * (see "Management of Cards and Components") + */ +static int snd_bcm2835_create(struct snd_card *card, + struct bcm2835_chip **rchip) +{ + struct bcm2835_chip *chip; + int err; + static struct snd_device_ops ops = { + .dev_free = snd_bcm2835_dev_free, + }; + + *rchip = NULL; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; + + chip->card = card; + + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err) { + snd_bcm2835_free(chip); + return err; + } + + *rchip = chip; + return 0; +} + +static void snd_devm_card_free(struct device *dev, void *res) +{ + struct snd_card *snd_card = *(struct snd_card **)res; + + snd_card_free(snd_card); +} + +static struct snd_card *snd_devm_card_new(struct device *dev) +{ + struct snd_card **dr; + struct snd_card *card; + int ret; + + dr = devres_alloc(snd_devm_card_free, sizeof(*dr), GFP_KERNEL); + if (!dr) + return ERR_PTR(-ENOMEM); + + ret = snd_card_new(dev, -1, NULL, THIS_MODULE, 0, &card); + if (ret) { + devres_free(dr); + return ERR_PTR(ret); + } + + *dr = card; + devres_add(dev, dr); + + return card; +} + +typedef int (*bcm2835_audio_newpcm_func)(struct bcm2835_chip *chip, + const char *name, + enum snd_bcm2835_route route, + u32 numchannels); + +typedef int (*bcm2835_audio_newctl_func)(struct bcm2835_chip *chip); + +struct bcm2835_audio_driver { + struct device_driver driver; + const char *shortname; + const char *longname; + int minchannels; + bcm2835_audio_newpcm_func newpcm; + bcm2835_audio_newctl_func newctl; + enum snd_bcm2835_route route; +}; + +static int bcm2835_audio_alsa_newpcm(struct bcm2835_chip *chip, + const char *name, + enum snd_bcm2835_route route, + u32 numchannels) +{ + int err; + + err = snd_bcm2835_new_pcm(chip, numchannels - 1); + if (err) + return err; + + err = snd_bcm2835_new_spdif_pcm(chip); + if (err) + return err; + + return 0; +} + +static struct bcm2835_audio_driver bcm2835_audio_alsa = { + .driver = { + .name = "bcm2835_alsa", + .owner = THIS_MODULE, + }, + .shortname = "bcm2835 ALSA", + .longname = "bcm2835 ALSA", + .minchannels = 2, + .newpcm = bcm2835_audio_alsa_newpcm, + .newctl = snd_bcm2835_new_ctl, +}; + +static struct bcm2835_audio_driver bcm2835_audio_hdmi = { + .driver = { + .name = "bcm2835_hdmi", + .owner = THIS_MODULE, + }, + .shortname = "bcm2835 HDMI", + .longname = "bcm2835 HDMI", + .minchannels = 1, + .newpcm = snd_bcm2835_new_simple_pcm, + .newctl = snd_bcm2835_new_hdmi_ctl, + .route = AUDIO_DEST_HDMI +}; + +static struct bcm2835_audio_driver bcm2835_audio_headphones = { + .driver = { + .name = "bcm2835_headphones", + .owner = THIS_MODULE, + }, + .shortname = "bcm2835 Headphones", + .longname = "bcm2835 Headphones", + .minchannels = 1, + .newpcm = snd_bcm2835_new_simple_pcm, + .newctl = snd_bcm2835_new_headphones_ctl, + .route = AUDIO_DEST_HEADPHONES +}; + +struct bcm2835_audio_drivers { + struct bcm2835_audio_driver *audio_driver; + const bool *is_enabled; +}; + +static struct bcm2835_audio_drivers children_devices[] = { + { + .audio_driver = &bcm2835_audio_alsa, + .is_enabled = &enable_compat_alsa, + }, + { + .audio_driver = &bcm2835_audio_hdmi, + .is_enabled = &enable_hdmi, + }, + { + .audio_driver = &bcm2835_audio_headphones, + .is_enabled = &enable_headphones, + }, +}; + +static int snd_add_child_device(struct device *device, + struct bcm2835_audio_driver *audio_driver, + u32 numchans) +{ + struct snd_card *card; + struct device *child; + struct bcm2835_chip *chip; + int err, i; + + child = snd_create_device(device, &audio_driver->driver, + audio_driver->driver.name); + if (IS_ERR(child)) { + dev_err(device, + "Unable to create child device %p, error %ld", + audio_driver->driver.name, + PTR_ERR(child)); + return PTR_ERR(child); + } + + card = snd_devm_card_new(child); + if (IS_ERR(card)) { + dev_err(child, "Failed to create card"); + return PTR_ERR(card); + } + + snd_card_set_dev(card, child); + strcpy(card->driver, audio_driver->driver.name); + strcpy(card->shortname, audio_driver->shortname); + strcpy(card->longname, audio_driver->longname); + + err = snd_bcm2835_create(card, &chip); + if (err) { + dev_err(child, "Failed to create chip, error %d\n", err); + return err; + } + + chip->dev = child; + + err = audio_driver->newpcm(chip, audio_driver->shortname, + audio_driver->route, + numchans); + if (err) { + dev_err(child, "Failed to create pcm, error %d\n", err); + return err; + } + + err = audio_driver->newctl(chip); + if (err) { + dev_err(child, "Failed to create controls, error %d\n", err); + return err; + } + + for (i = 0; i < numchans; i++) + chip->avail_substreams |= (1 << i); + + err = snd_card_register(card); + if (err) { + dev_err(child, "Failed to register card, error %d\n", err); + return err; + } + + dev_set_drvdata(child, card); + dev_info(child, "card created with %d channels\n", numchans); + + return 0; +} + +static int snd_add_child_devices(struct device *device, u32 numchans) +{ + int i; + int count_devices = 0; + int minchannels = 0; + int extrachannels = 0; + int extrachannels_per_driver = 0; + int extrachannels_remainder = 0; + + for (i = 0; i < ARRAY_SIZE(children_devices); i++) + if (*children_devices[i].is_enabled) + count_devices++; + + if (!count_devices) + return 0; + + for (i = 0; i < ARRAY_SIZE(children_devices); i++) + if (*children_devices[i].is_enabled) + minchannels += + children_devices[i].audio_driver->minchannels; + + if (minchannels < numchans) { + extrachannels = numchans - minchannels; + extrachannels_per_driver = extrachannels / count_devices; + extrachannels_remainder = extrachannels % count_devices; + } + + dev_dbg(device, "minchannels %d\n", minchannels); + dev_dbg(device, "extrachannels %d\n", extrachannels); + dev_dbg(device, "extrachannels_per_driver %d\n", + extrachannels_per_driver); + dev_dbg(device, "extrachannels_remainder %d\n", + extrachannels_remainder); + + for (i = 0; i < ARRAY_SIZE(children_devices); i++) { + int err; + int numchannels_this_device; + struct bcm2835_audio_driver *audio_driver; + + if (!*children_devices[i].is_enabled) + continue; + + audio_driver = children_devices[i].audio_driver; + + if (audio_driver->minchannels > numchans) { + dev_err(device, + "Out of channels, needed %d but only %d left\n", + audio_driver->minchannels, + numchans); + continue; + } + + numchannels_this_device = + audio_driver->minchannels + extrachannels_per_driver + + extrachannels_remainder; + extrachannels_remainder = 0; + + numchans -= numchannels_this_device; + + err = snd_add_child_device(device, audio_driver, + numchannels_this_device); + if (err) + return err; + } + + return 0; +} + +static int snd_bcm2835_alsa_probe_dt(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + u32 numchans; + int err; + + err = of_property_read_u32(dev->of_node, "brcm,pwm-channels", + &numchans); + if (err) { + dev_err(dev, "Failed to get DT property 'brcm,pwm-channels'"); + return err; + } + + if (numchans == 0 || numchans > MAX_SUBSTREAMS) { + numchans = MAX_SUBSTREAMS; + dev_warn(dev, + "Illegal 'brcm,pwm-channels' value, will use %u\n", + numchans); + } + + err = snd_add_child_devices(dev, numchans); + if (err) + return err; + + return 0; +} + +#ifdef CONFIG_PM + +static int snd_bcm2835_alsa_suspend(struct platform_device *pdev, + pm_message_t state) +{ + return 0; +} + +static int snd_bcm2835_alsa_resume(struct platform_device *pdev) +{ + return 0; +} + +#endif + +static const struct of_device_id snd_bcm2835_of_match_table[] = { + { .compatible = "brcm,bcm2835-audio",}, + {}, +}; +MODULE_DEVICE_TABLE(of, snd_bcm2835_of_match_table); + +static struct platform_driver bcm2835_alsa0_driver = { + .probe = snd_bcm2835_alsa_probe_dt, +#ifdef CONFIG_PM + .suspend = snd_bcm2835_alsa_suspend, + .resume = snd_bcm2835_alsa_resume, +#endif + .driver = { + .name = "bcm2835_audio", + .owner = THIS_MODULE, + .of_match_table = snd_bcm2835_of_match_table, + }, +}; + +static int bcm2835_alsa_device_init(void) +{ + int retval; + + retval = platform_driver_register(&bcm2835_alsa0_driver); + if (retval) + pr_err("Error registering bcm2835_audio driver %d .\n", retval); + + return retval; +} + +static void bcm2835_alsa_device_exit(void) +{ + platform_driver_unregister(&bcm2835_alsa0_driver); +} + +late_initcall(bcm2835_alsa_device_init); +module_exit(bcm2835_alsa_device_exit); + +MODULE_AUTHOR("Dom Cobley"); +MODULE_DESCRIPTION("Alsa driver for BCM2835 chip"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h new file mode 100644 index 0000000..379604d --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h @@ -0,0 +1,175 @@ +/***************************************************************************** + * Copyright 2011 Broadcom Corporation. All rights reserved. + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available at + * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + *****************************************************************************/ + +#ifndef __SOUND_ARM_BCM2835_H +#define __SOUND_ARM_BCM2835_H + +#include <linux/device.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/wait.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/pcm-indirect.h> +#include <linux/workqueue.h> + +/* + * #define AUDIO_DEBUG_ENABLE + * #define AUDIO_VERBOSE_DEBUG_ENABLE + */ + +/* Debug macros */ + +#ifdef AUDIO_DEBUG_ENABLE +#ifdef AUDIO_VERBOSE_DEBUG_ENABLE + +#define audio_debug(fmt, arg...) \ + pr_info("%s:%d " fmt, __func__, __LINE__, ##arg) + +#define audio_info(fmt, arg...) \ + pr_info("%s:%d " fmt, __func__, __LINE__, ##arg) + +#else + +#define audio_debug(fmt, arg...) + +#define audio_info(fmt, arg...) + +#endif /* AUDIO_VERBOSE_DEBUG_ENABLE */ + +#else + +#define audio_debug(fmt, arg...) + +#define audio_info(fmt, arg...) + +#endif /* AUDIO_DEBUG_ENABLE */ + +#define audio_error(fmt, arg...) \ + pr_err("%s:%d " fmt, __func__, __LINE__, ##arg) + +#define audio_warning(fmt, arg...) \ + pr_warn("%s:%d " fmt, __func__, __LINE__, ##arg) + +#define audio_alert(fmt, arg...) \ + pr_alert("%s:%d " fmt, __func__, __LINE__, ##arg) + +#define MAX_SUBSTREAMS (8) +#define AVAIL_SUBSTREAMS_MASK (0xff) + +enum { + CTRL_VOL_MUTE, + CTRL_VOL_UNMUTE +}; + +/* macros for alsa2chip and chip2alsa, instead of functions */ + +// convert alsa to chip volume (defined as macro rather than function call) +#define alsa2chip(vol) (uint)(-(((vol) << 8) / 100)) + +// convert chip to alsa volume +#define chip2alsa(vol) -(((vol) * 100) >> 8) + +/* Some constants for values .. */ +enum snd_bcm2835_route { + AUDIO_DEST_AUTO = 0, + AUDIO_DEST_HEADPHONES = 1, + AUDIO_DEST_HDMI = 2, + AUDIO_DEST_MAX, +}; + +enum snd_bcm2835_ctrl { + PCM_PLAYBACK_VOLUME, + PCM_PLAYBACK_MUTE, + PCM_PLAYBACK_DEVICE, +}; + +/* definition of the chip-specific record */ +struct bcm2835_chip { + struct snd_card *card; + struct snd_pcm *pcm; + struct snd_pcm *pcm_spdif; + /* Bitmat for valid reg_base and irq numbers */ + unsigned int avail_substreams; + struct device *dev; + struct bcm2835_alsa_stream *alsa_stream[MAX_SUBSTREAMS]; + + int volume; + int old_volume; /* stores the volume value whist muted */ + int dest; + int mute; + + unsigned int opened; + unsigned int spdif_status; + struct mutex audio_mutex; +}; + +struct bcm2835_alsa_stream { + struct bcm2835_chip *chip; + struct snd_pcm_substream *substream; + struct snd_pcm_indirect pcm_indirect; + + spinlock_t lock; + volatile unsigned int control; + volatile unsigned int status; + + int open; + int running; + int draining; + + int channels; + int params_rate; + int pcm_format_width; + + unsigned int pos; + unsigned int buffer_size; + unsigned int period_size; + + atomic_t retrieved; + struct bcm2835_audio_instance *instance; + struct workqueue_struct *my_wq; + int idx; +}; + +int snd_bcm2835_new_ctl(struct bcm2835_chip *chip); +int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels); +int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip); +int snd_bcm2835_new_simple_pcm(struct bcm2835_chip *chip, + const char *name, + enum snd_bcm2835_route route, + u32 numchannels); + +int snd_bcm2835_new_hdmi_ctl(struct bcm2835_chip *chip); +int snd_bcm2835_new_headphones_ctl(struct bcm2835_chip *chip); + +int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream); +int bcm2835_audio_close(struct bcm2835_alsa_stream *alsa_stream); +int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream, + unsigned int channels, unsigned int samplerate, + unsigned int bps); +int bcm2835_audio_setup(struct bcm2835_alsa_stream *alsa_stream); +int bcm2835_audio_start(struct bcm2835_alsa_stream *alsa_stream); +int bcm2835_audio_stop(struct bcm2835_alsa_stream *alsa_stream); +int bcm2835_audio_set_ctls(struct bcm2835_chip *chip); +int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream, + unsigned int count, + void *src); +void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream); +unsigned int bcm2835_audio_retrieve_buffers(struct bcm2835_alsa_stream *alsa_stream); +void bcm2835_audio_flush_buffers(struct bcm2835_alsa_stream *alsa_stream); +void bcm2835_audio_flush_playback_buffers(struct bcm2835_alsa_stream *alsa_stream); + +#endif /* __SOUND_ARM_BCM2835_H */ diff --git a/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h b/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h new file mode 100644 index 0000000..da96f1b --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h @@ -0,0 +1,108 @@ +/***************************************************************************** + * Copyright 2011 Broadcom Corporation. All rights reserved. + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available at + * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + *****************************************************************************/ + +#ifndef _VC_AUDIO_DEFS_H_ +#define _VC_AUDIO_DEFS_H_ + +#define VC_AUDIOSERV_MIN_VER 1 +#define VC_AUDIOSERV_VER 2 + +/* FourCC code used for VCHI connection */ +#define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS") + +/* + * List of screens that are currently supported + * All message types supported for HOST->VC direction + */ + +enum vc_audio_msg_type { + VC_AUDIO_MSG_TYPE_RESULT, // Generic result + VC_AUDIO_MSG_TYPE_COMPLETE, // Generic result + VC_AUDIO_MSG_TYPE_CONFIG, // Configure audio + VC_AUDIO_MSG_TYPE_CONTROL, // Configure audio + VC_AUDIO_MSG_TYPE_OPEN, // Configure audio + VC_AUDIO_MSG_TYPE_CLOSE, // Configure audio + VC_AUDIO_MSG_TYPE_START, // Configure audio + VC_AUDIO_MSG_TYPE_STOP, // Configure audio + VC_AUDIO_MSG_TYPE_WRITE, // Configure audio + VC_AUDIO_MSG_TYPE_MAX +}; + +/* configure the audio */ + +struct vc_audio_config { + u32 channels; + u32 samplerate; + u32 bps; +}; + +struct vc_audio_control { + u32 volume; + u32 dest; +}; + +struct vc_audio_open { + u32 dummy; +}; + +struct vc_audio_close { + u32 dummy; +}; + +struct vc_audio_start { + u32 dummy; +}; + +struct vc_audio_stop { + u32 draining; +}; + +/* configure the write audio samples */ +struct vc_audio_write { + u32 count; // in bytes + u32 cookie1; + u32 cookie2; + s16 silence; + s16 max_packet; +}; + +/* Generic result for a request (VC->HOST) */ +struct vc_audio_result { + s32 success; // Success value +}; + +/* Generic result for a request (VC->HOST) */ +struct vc_audio_complete { + s32 count; // Success value + u32 cookie1; + u32 cookie2; +}; + +/* Message header for all messages in HOST->VC direction */ +struct vc_audio_msg { + s32 type; /* Message type (VC_AUDIO_MSG_TYPE) */ + union { + struct vc_audio_config config; + struct vc_audio_control control; + struct vc_audio_open open; + struct vc_audio_close close; + struct vc_audio_start start; + struct vc_audio_stop stop; + struct vc_audio_write write; + struct vc_audio_result result; + struct vc_audio_complete complete; + } u; +}; + +#endif /* _VC_AUDIO_DEFS_H_ */ diff --git a/drivers/staging/vc04_services/bcm2835-camera/Kconfig b/drivers/staging/vc04_services/bcm2835-camera/Kconfig new file mode 100644 index 0000000..b8b01aa --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/Kconfig @@ -0,0 +1,11 @@ +config VIDEO_BCM2835 + tristate "BCM2835 Camera" + depends on MEDIA_SUPPORT + depends on VIDEO_V4L2 && (ARCH_BCM2835 || COMPILE_TEST) + select BCM2835_VCHIQ + select VIDEOBUF2_VMALLOC + select BTREE + help + Say Y here to enable camera host interface devices for + Broadcom BCM2835 SoC. This operates over the VCHIQ interface + to a service running on VideoCore. diff --git a/drivers/staging/vc04_services/bcm2835-camera/Makefile b/drivers/staging/vc04_services/bcm2835-camera/Makefile new file mode 100644 index 0000000..8307f30 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/Makefile @@ -0,0 +1,10 @@ +bcm2835-v4l2-$(CONFIG_VIDEO_BCM2835) := \ + bcm2835-camera.o \ + controls.o \ + mmal-vchiq.o + +obj-$(CONFIG_VIDEO_BCM2835) += bcm2835-v4l2.o + +ccflags-y += \ + -Idrivers/staging/vc04_services \ + -D__VCCOREVER__=0x04000000 diff --git a/drivers/staging/vc04_services/bcm2835-camera/TODO b/drivers/staging/vc04_services/bcm2835-camera/TODO new file mode 100644 index 0000000..0ab9e88 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/TODO @@ -0,0 +1,34 @@ +1) Support dma-buf memory management. + +In order to zero-copy import camera images into the 3D or display +pipelines, we need to export our buffers through dma-buf so that the +vc4 driver can import them. This may involve bringing in the VCSM +driver (which allows long-term management of regions of memory in the +space that the VPU reserved and Linux otherwise doesn't have access +to), or building some new protocol that allows VCSM-style management +of Linux's CMA memory. + +2) Avoid extra copies for padding of images. + +We expose V4L2_PIX_FMT_* formats that have a specified stride/height +padding in the V4L2 spec, but that padding doesn't match what the +hardware can do. If we exposed the native padding requirements +through the V4L2 "multiplanar" formats, the firmware would have one +less copy it needed to do. + +3) Port to ARM64 + +The bulk_receive() does some manual cache flushing that are 32-bit ARM +only, which we should convert to proper cross-platform APIs. + +4) Convert to be a platform driver. + +Right now when the module probes, it tries to initialize VCHI and +errors out if it wasn't ready yet. If bcm2835-v4l2 was built in, then +VCHI generally isn't ready because it depends on both the firmware and +mailbox drivers having already loaded. + +We should have VCHI create a platform device once it's initialized, +and have this driver bind to it, so that we automatically load the +v4l2 module after VCHI loads. + diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c new file mode 100644 index 0000000..a11e047 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c @@ -0,0 +1,1966 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <media/videobuf2-vmalloc.h> +#include <media/videobuf2-dma-contig.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> +#include <media/v4l2-common.h> +#include <linux/delay.h> + +#include "mmal-common.h" +#include "mmal-encodings.h" +#include "mmal-vchiq.h" +#include "mmal-msg.h" +#include "mmal-parameters.h" +#include "bcm2835-camera.h" + +#define BM2835_MMAL_VERSION "0.0.2" +#define BM2835_MMAL_MODULE_NAME "bcm2835-v4l2" +#define MIN_WIDTH 32 +#define MIN_HEIGHT 32 +#define MIN_BUFFER_SIZE (80 * 1024) + +#define MAX_VIDEO_MODE_WIDTH 1280 +#define MAX_VIDEO_MODE_HEIGHT 720 + +#define MAX_BCM2835_CAMERAS 2 + +MODULE_DESCRIPTION("Broadcom 2835 MMAL video capture"); +MODULE_AUTHOR("Vincent Sanders"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(BM2835_MMAL_VERSION); + +int bcm2835_v4l2_debug; +module_param_named(debug, bcm2835_v4l2_debug, int, 0644); +MODULE_PARM_DESC(bcm2835_v4l2_debug, "Debug level 0-2"); + +#define UNSET (-1) +static int video_nr[] = {[0 ... (MAX_BCM2835_CAMERAS - 1)] = UNSET }; +module_param_array(video_nr, int, NULL, 0644); +MODULE_PARM_DESC(video_nr, "videoX start numbers, -1 is autodetect"); + +static int max_video_width = MAX_VIDEO_MODE_WIDTH; +static int max_video_height = MAX_VIDEO_MODE_HEIGHT; +module_param(max_video_width, int, 0644); +MODULE_PARM_DESC(max_video_width, "Threshold for video mode"); +module_param(max_video_height, int, 0644); +MODULE_PARM_DESC(max_video_height, "Threshold for video mode"); + +/* global device data array */ +static struct bm2835_mmal_dev *gdev[MAX_BCM2835_CAMERAS]; + +#define FPS_MIN 1 +#define FPS_MAX 90 + +/* timeperframe: min/max and default */ +static const struct v4l2_fract + tpf_min = {.numerator = 1, .denominator = FPS_MAX}, + tpf_max = {.numerator = 1, .denominator = FPS_MIN}, + tpf_default = {.numerator = 1000, .denominator = 30000}; + +/* video formats */ +static struct mmal_fmt formats[] = { + { + .name = "4:2:0, planar, YUV", + .fourcc = V4L2_PIX_FMT_YUV420, + .flags = 0, + .mmal = MMAL_ENCODING_I420, + .depth = 12, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 1, + }, + { + .name = "4:2:2, packed, YUYV", + .fourcc = V4L2_PIX_FMT_YUYV, + .flags = 0, + .mmal = MMAL_ENCODING_YUYV, + .depth = 16, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 2, + }, + { + .name = "RGB24 (LE)", + .fourcc = V4L2_PIX_FMT_RGB24, + .flags = 0, + .mmal = MMAL_ENCODING_RGB24, + .depth = 24, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 3, + }, + { + .name = "JPEG", + .fourcc = V4L2_PIX_FMT_JPEG, + .flags = V4L2_FMT_FLAG_COMPRESSED, + .mmal = MMAL_ENCODING_JPEG, + .depth = 8, + .mmal_component = MMAL_COMPONENT_IMAGE_ENCODE, + .ybbp = 0, + }, + { + .name = "H264", + .fourcc = V4L2_PIX_FMT_H264, + .flags = V4L2_FMT_FLAG_COMPRESSED, + .mmal = MMAL_ENCODING_H264, + .depth = 8, + .mmal_component = MMAL_COMPONENT_VIDEO_ENCODE, + .ybbp = 0, + }, + { + .name = "MJPEG", + .fourcc = V4L2_PIX_FMT_MJPEG, + .flags = V4L2_FMT_FLAG_COMPRESSED, + .mmal = MMAL_ENCODING_MJPEG, + .depth = 8, + .mmal_component = MMAL_COMPONENT_VIDEO_ENCODE, + .ybbp = 0, + }, + { + .name = "4:2:2, packed, YVYU", + .fourcc = V4L2_PIX_FMT_YVYU, + .flags = 0, + .mmal = MMAL_ENCODING_YVYU, + .depth = 16, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 2, + }, + { + .name = "4:2:2, packed, VYUY", + .fourcc = V4L2_PIX_FMT_VYUY, + .flags = 0, + .mmal = MMAL_ENCODING_VYUY, + .depth = 16, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 2, + }, + { + .name = "4:2:2, packed, UYVY", + .fourcc = V4L2_PIX_FMT_UYVY, + .flags = 0, + .mmal = MMAL_ENCODING_UYVY, + .depth = 16, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 2, + }, + { + .name = "4:2:0, planar, NV12", + .fourcc = V4L2_PIX_FMT_NV12, + .flags = 0, + .mmal = MMAL_ENCODING_NV12, + .depth = 12, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 1, + }, + { + .name = "RGB24 (BE)", + .fourcc = V4L2_PIX_FMT_BGR24, + .flags = 0, + .mmal = MMAL_ENCODING_BGR24, + .depth = 24, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 3, + }, + { + .name = "4:2:0, planar, YVU", + .fourcc = V4L2_PIX_FMT_YVU420, + .flags = 0, + .mmal = MMAL_ENCODING_YV12, + .depth = 12, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 1, + }, + { + .name = "4:2:0, planar, NV21", + .fourcc = V4L2_PIX_FMT_NV21, + .flags = 0, + .mmal = MMAL_ENCODING_NV21, + .depth = 12, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 1, + }, + { + .name = "RGB32 (BE)", + .fourcc = V4L2_PIX_FMT_BGR32, + .flags = 0, + .mmal = MMAL_ENCODING_BGRA, + .depth = 32, + .mmal_component = MMAL_COMPONENT_CAMERA, + .ybbp = 4, + }, +}; + +static struct mmal_fmt *get_format(struct v4l2_format *f) +{ + struct mmal_fmt *fmt; + unsigned int k; + + for (k = 0; k < ARRAY_SIZE(formats); k++) { + fmt = &formats[k]; + if (fmt->fourcc == f->fmt.pix.pixelformat) + return fmt; + } + + return NULL; +} + +/* ------------------------------------------------------------------ + * Videobuf queue operations + * ------------------------------------------------------------------ + */ + +static int queue_setup(struct vb2_queue *vq, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], struct device *alloc_ctxs[]) +{ + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq); + unsigned long size; + + /* refuse queue setup if port is not configured */ + if (!dev->capture.port) { + v4l2_err(&dev->v4l2_dev, + "%s: capture port not configured\n", __func__); + return -EINVAL; + } + + size = dev->capture.port->current_buffer.size; + if (size == 0) { + v4l2_err(&dev->v4l2_dev, + "%s: capture port buffer size is zero\n", __func__); + return -EINVAL; + } + + if (*nbuffers < (dev->capture.port->current_buffer.num + 2)) + *nbuffers = (dev->capture.port->current_buffer.num + 2); + + *nplanes = 1; + + sizes[0] = size; + + /* + * videobuf2-vmalloc allocator is context-less so no need to set + * alloc_ctxs array. + */ + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n", + __func__, dev); + + return 0; +} + +static int buffer_prepare(struct vb2_buffer *vb) +{ + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + unsigned long size; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n", + __func__, dev); + + BUG_ON(!dev->capture.port); + BUG_ON(!dev->capture.fmt); + + size = dev->capture.stride * dev->capture.height; + if (vb2_plane_size(vb, 0) < size) { + v4l2_err(&dev->v4l2_dev, + "%s data will not fit into plane (%lu < %lu)\n", + __func__, vb2_plane_size(vb, 0), size); + return -EINVAL; + } + + return 0; +} + +static inline bool is_capturing(struct bm2835_mmal_dev *dev) +{ + return dev->capture.camera_port == + &dev-> + component[MMAL_COMPONENT_CAMERA]->output[MMAL_CAMERA_PORT_CAPTURE]; +} + +static void buffer_cb(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + int status, + struct mmal_buffer *buf, + unsigned long length, u32 mmal_flags, s64 dts, s64 pts) +{ + struct bm2835_mmal_dev *dev = port->cb_ctx; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s: status:%d, buf:%p, length:%lu, flags %u, pts %lld\n", + __func__, status, buf, length, mmal_flags, pts); + + if (status != 0) { + /* error in transfer */ + if (buf) { + /* there was a buffer with the error so return it */ + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + } + return; + } else if (length == 0) { + /* stream ended */ + if (buf) { + /* this should only ever happen if the port is + * disabled and there are buffers still queued + */ + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + pr_debug("Empty buffer"); + } else if (dev->capture.frame_count) { + /* grab another frame */ + if (is_capturing(dev)) { + pr_debug("Grab another frame"); + vchiq_mmal_port_parameter_set( + instance, + dev->capture. + camera_port, + MMAL_PARAMETER_CAPTURE, + &dev->capture. + frame_count, + sizeof(dev->capture.frame_count)); + } + } else { + /* signal frame completion */ + complete(&dev->capture.frame_cmplt); + } + } else { + if (dev->capture.frame_count) { + if (dev->capture.vc_start_timestamp != -1 && + pts != 0) { + struct timeval timestamp; + s64 runtime_us = pts - + dev->capture.vc_start_timestamp; + u32 div = 0; + u32 rem = 0; + + div = + div_u64_rem(runtime_us, USEC_PER_SEC, &rem); + timestamp.tv_sec = + dev->capture.kernel_start_ts.tv_sec + div; + timestamp.tv_usec = + dev->capture.kernel_start_ts.tv_usec + rem; + + if (timestamp.tv_usec >= + USEC_PER_SEC) { + timestamp.tv_sec++; + timestamp.tv_usec -= + USEC_PER_SEC; + } + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Convert start time %d.%06d and %llu " + "with offset %llu to %d.%06d\n", + (int)dev->capture.kernel_start_ts. + tv_sec, + (int)dev->capture.kernel_start_ts. + tv_usec, + dev->capture.vc_start_timestamp, pts, + (int)timestamp.tv_sec, + (int)timestamp.tv_usec); + buf->vb.vb2_buf.timestamp = timestamp.tv_sec * 1000000000ULL + + timestamp.tv_usec * 1000ULL; + } else { + buf->vb.vb2_buf.timestamp = ktime_get_ns(); + } + + vb2_set_plane_payload(&buf->vb.vb2_buf, 0, length); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE); + + if (mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS && + is_capturing(dev)) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Grab another frame as buffer has EOS"); + vchiq_mmal_port_parameter_set( + instance, + dev->capture. + camera_port, + MMAL_PARAMETER_CAPTURE, + &dev->capture. + frame_count, + sizeof(dev->capture.frame_count)); + } + } else { + /* signal frame completion */ + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + complete(&dev->capture.frame_cmplt); + } + } +} + +static int enable_camera(struct bm2835_mmal_dev *dev) +{ + int ret; + + if (!dev->camera_use_count) { + ret = vchiq_mmal_port_parameter_set( + dev->instance, + &dev->component[MMAL_COMPONENT_CAMERA]->control, + MMAL_PARAMETER_CAMERA_NUM, &dev->camera_num, + sizeof(dev->camera_num)); + if (ret < 0) { + v4l2_err(&dev->v4l2_dev, + "Failed setting camera num, ret %d\n", ret); + return -EINVAL; + } + + ret = vchiq_mmal_component_enable( + dev->instance, + dev->component[MMAL_COMPONENT_CAMERA]); + if (ret < 0) { + v4l2_err(&dev->v4l2_dev, + "Failed enabling camera, ret %d\n", ret); + return -EINVAL; + } + } + dev->camera_use_count++; + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, "enabled camera (refcount %d)\n", + dev->camera_use_count); + return 0; +} + +static int disable_camera(struct bm2835_mmal_dev *dev) +{ + int ret; + + if (!dev->camera_use_count) { + v4l2_err(&dev->v4l2_dev, + "Disabled the camera when already disabled\n"); + return -EINVAL; + } + dev->camera_use_count--; + if (!dev->camera_use_count) { + unsigned int i = 0xFFFFFFFF; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Disabling camera\n"); + ret = + vchiq_mmal_component_disable( + dev->instance, + dev->component[MMAL_COMPONENT_CAMERA]); + if (ret < 0) { + v4l2_err(&dev->v4l2_dev, + "Failed disabling camera, ret %d\n", ret); + return -EINVAL; + } + vchiq_mmal_port_parameter_set( + dev->instance, + &dev->component[MMAL_COMPONENT_CAMERA]->control, + MMAL_PARAMETER_CAMERA_NUM, &i, + sizeof(i)); + } + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Camera refcount now %d\n", dev->camera_use_count); + return 0; +} + +static void buffer_queue(struct vb2_buffer *vb) +{ + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb); + struct mmal_buffer *buf = container_of(vb2, struct mmal_buffer, vb); + int ret; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s: dev:%p buf:%p\n", __func__, dev, buf); + + buf->buffer = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); + buf->buffer_size = vb2_plane_size(&buf->vb.vb2_buf, 0); + + ret = vchiq_mmal_submit_buffer(dev->instance, dev->capture.port, buf); + if (ret < 0) + v4l2_err(&dev->v4l2_dev, "%s: error submitting buffer\n", + __func__); +} + +static int start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq); + int ret; + int parameter_size; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n", + __func__, dev); + + /* ensure a format has actually been set */ + if (!dev->capture.port) + return -EINVAL; + + if (enable_camera(dev) < 0) { + v4l2_err(&dev->v4l2_dev, "Failed to enable camera\n"); + return -EINVAL; + } + + /*init_completion(&dev->capture.frame_cmplt); */ + + /* enable frame capture */ + dev->capture.frame_count = 1; + + /* if the preview is not already running, wait for a few frames for AGC + * to settle down. + */ + if (!dev->component[MMAL_COMPONENT_PREVIEW]->enabled) + msleep(300); + + /* enable the connection from camera to encoder (if applicable) */ + if (dev->capture.camera_port != dev->capture.port + && dev->capture.camera_port) { + ret = vchiq_mmal_port_enable(dev->instance, + dev->capture.camera_port, NULL); + if (ret) { + v4l2_err(&dev->v4l2_dev, + "Failed to enable encode tunnel - error %d\n", + ret); + return -1; + } + } + + /* Get VC timestamp at this point in time */ + parameter_size = sizeof(dev->capture.vc_start_timestamp); + if (vchiq_mmal_port_parameter_get(dev->instance, + dev->capture.camera_port, + MMAL_PARAMETER_SYSTEM_TIME, + &dev->capture.vc_start_timestamp, + ¶meter_size)) { + v4l2_err(&dev->v4l2_dev, + "Failed to get VC start time - update your VC f/w\n"); + + /* Flag to indicate just to rely on kernel timestamps */ + dev->capture.vc_start_timestamp = -1; + } else + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Start time %lld size %d\n", + dev->capture.vc_start_timestamp, parameter_size); + + v4l2_get_timestamp(&dev->capture.kernel_start_ts); + + /* enable the camera port */ + dev->capture.port->cb_ctx = dev; + ret = + vchiq_mmal_port_enable(dev->instance, dev->capture.port, buffer_cb); + if (ret) { + v4l2_err(&dev->v4l2_dev, + "Failed to enable capture port - error %d. " + "Disabling camera port again\n", ret); + + vchiq_mmal_port_disable(dev->instance, + dev->capture.camera_port); + if (disable_camera(dev) < 0) { + v4l2_err(&dev->v4l2_dev, "Failed to disable camera\n"); + return -EINVAL; + } + return -1; + } + + /* capture the first frame */ + vchiq_mmal_port_parameter_set(dev->instance, + dev->capture.camera_port, + MMAL_PARAMETER_CAPTURE, + &dev->capture.frame_count, + sizeof(dev->capture.frame_count)); + return 0; +} + +/* abort streaming and wait for last buffer */ +static void stop_streaming(struct vb2_queue *vq) +{ + int ret; + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq); + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n", + __func__, dev); + + init_completion(&dev->capture.frame_cmplt); + dev->capture.frame_count = 0; + + /* ensure a format has actually been set */ + if (!dev->capture.port) { + v4l2_err(&dev->v4l2_dev, + "no capture port - stream not started?\n"); + return; + } + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "stopping capturing\n"); + + /* stop capturing frames */ + vchiq_mmal_port_parameter_set(dev->instance, + dev->capture.camera_port, + MMAL_PARAMETER_CAPTURE, + &dev->capture.frame_count, + sizeof(dev->capture.frame_count)); + + /* wait for last frame to complete */ + ret = wait_for_completion_timeout(&dev->capture.frame_cmplt, HZ); + if (ret <= 0) + v4l2_err(&dev->v4l2_dev, + "error %d waiting for frame completion\n", ret); + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "disabling connection\n"); + + /* disable the connection from camera to encoder */ + ret = vchiq_mmal_port_disable(dev->instance, dev->capture.camera_port); + if (!ret && dev->capture.camera_port != dev->capture.port) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "disabling port\n"); + ret = vchiq_mmal_port_disable(dev->instance, dev->capture.port); + } else if (dev->capture.camera_port != dev->capture.port) { + v4l2_err(&dev->v4l2_dev, "port_disable failed, error %d\n", + ret); + } + + if (disable_camera(dev) < 0) + v4l2_err(&dev->v4l2_dev, "Failed to disable camera\n"); +} + +static void bm2835_mmal_lock(struct vb2_queue *vq) +{ + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq); + + mutex_lock(&dev->mutex); +} + +static void bm2835_mmal_unlock(struct vb2_queue *vq) +{ + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq); + + mutex_unlock(&dev->mutex); +} + +static struct vb2_ops bm2835_mmal_video_qops = { + .queue_setup = queue_setup, + .buf_prepare = buffer_prepare, + .buf_queue = buffer_queue, + .start_streaming = start_streaming, + .stop_streaming = stop_streaming, + .wait_prepare = bm2835_mmal_unlock, + .wait_finish = bm2835_mmal_lock, +}; + +/* ------------------------------------------------------------------ + * IOCTL operations + * ------------------------------------------------------------------ + */ + +static int set_overlay_params(struct bm2835_mmal_dev *dev, + struct vchiq_mmal_port *port) +{ + struct mmal_parameter_displayregion prev_config = { + .set = MMAL_DISPLAY_SET_LAYER | MMAL_DISPLAY_SET_ALPHA | + MMAL_DISPLAY_SET_DEST_RECT | MMAL_DISPLAY_SET_FULLSCREEN, + .layer = PREVIEW_LAYER, + .alpha = dev->overlay.global_alpha, + .fullscreen = 0, + .dest_rect = { + .x = dev->overlay.w.left, + .y = dev->overlay.w.top, + .width = dev->overlay.w.width, + .height = dev->overlay.w.height, + }, + }; + return vchiq_mmal_port_parameter_set(dev->instance, port, + MMAL_PARAMETER_DISPLAYREGION, + &prev_config, sizeof(prev_config)); +} + +/* overlay ioctl */ +static int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct mmal_fmt *fmt; + + if (f->index >= ARRAY_SIZE(formats)) + return -EINVAL; + + fmt = &formats[f->index]; + + strlcpy(f->description, fmt->name, sizeof(f->description)); + f->pixelformat = fmt->fourcc; + f->flags = fmt->flags; + + return 0; +} + +static int vidioc_g_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + + f->fmt.win = dev->overlay; + + return 0; +} + +static int vidioc_try_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + + f->fmt.win.field = V4L2_FIELD_NONE; + f->fmt.win.chromakey = 0; + f->fmt.win.clips = NULL; + f->fmt.win.clipcount = 0; + f->fmt.win.bitmap = NULL; + + v4l_bound_align_image(&f->fmt.win.w.width, MIN_WIDTH, dev->max_width, 1, + &f->fmt.win.w.height, MIN_HEIGHT, dev->max_height, + 1, 0); + v4l_bound_align_image(&f->fmt.win.w.left, MIN_WIDTH, dev->max_width, 1, + &f->fmt.win.w.top, MIN_HEIGHT, dev->max_height, + 1, 0); + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Overlay: Now w/h %dx%d l/t %dx%d\n", + f->fmt.win.w.width, f->fmt.win.w.height, + f->fmt.win.w.left, f->fmt.win.w.top); + + v4l2_dump_win_format(1, + bcm2835_v4l2_debug, + &dev->v4l2_dev, + &f->fmt.win, + __func__); + return 0; +} + +static int vidioc_s_fmt_vid_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + + vidioc_try_fmt_vid_overlay(file, priv, f); + + dev->overlay = f->fmt.win; + if (dev->component[MMAL_COMPONENT_PREVIEW]->enabled) { + set_overlay_params(dev, + &dev->component[MMAL_COMPONENT_PREVIEW]->input[0]); + } + + return 0; +} + +static int vidioc_overlay(struct file *file, void *f, unsigned int on) +{ + int ret; + struct bm2835_mmal_dev *dev = video_drvdata(file); + struct vchiq_mmal_port *src; + struct vchiq_mmal_port *dst; + + if ((on && dev->component[MMAL_COMPONENT_PREVIEW]->enabled) || + (!on && !dev->component[MMAL_COMPONENT_PREVIEW]->enabled)) + return 0; /* already in requested state */ + + src = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_PREVIEW]; + + if (!on) { + /* disconnect preview ports and disable component */ + ret = vchiq_mmal_port_disable(dev->instance, src); + if (!ret) + ret = + vchiq_mmal_port_connect_tunnel(dev->instance, src, + NULL); + if (ret >= 0) + ret = vchiq_mmal_component_disable( + dev->instance, + dev->component[MMAL_COMPONENT_PREVIEW]); + + disable_camera(dev); + return ret; + } + + /* set preview port format and connect it to output */ + dst = &dev->component[MMAL_COMPONENT_PREVIEW]->input[0]; + + ret = vchiq_mmal_port_set_format(dev->instance, src); + if (ret < 0) + goto error; + + ret = set_overlay_params(dev, dst); + if (ret < 0) + goto error; + + if (enable_camera(dev) < 0) + goto error; + + ret = vchiq_mmal_component_enable( + dev->instance, + dev->component[MMAL_COMPONENT_PREVIEW]); + if (ret < 0) + goto error; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "connecting %p to %p\n", + src, dst); + ret = vchiq_mmal_port_connect_tunnel(dev->instance, src, dst); + if (!ret) + ret = vchiq_mmal_port_enable(dev->instance, src, NULL); +error: + return ret; +} + +static int vidioc_g_fbuf(struct file *file, void *fh, + struct v4l2_framebuffer *a) +{ + /* The video overlay must stay within the framebuffer and can't be + * positioned independently. + */ + struct bm2835_mmal_dev *dev = video_drvdata(file); + struct vchiq_mmal_port *preview_port = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_PREVIEW]; + + a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | + V4L2_FBUF_CAP_GLOBAL_ALPHA; + a->flags = V4L2_FBUF_FLAG_OVERLAY; + a->fmt.width = preview_port->es.video.width; + a->fmt.height = preview_port->es.video.height; + a->fmt.pixelformat = V4L2_PIX_FMT_YUV420; + a->fmt.bytesperline = preview_port->es.video.width; + a->fmt.sizeimage = (preview_port->es.video.width * + preview_port->es.video.height * 3) >> 1; + a->fmt.colorspace = V4L2_COLORSPACE_SMPTE170M; + + return 0; +} + +/* input ioctls */ +static int vidioc_enum_input(struct file *file, void *priv, + struct v4l2_input *inp) +{ + /* only a single camera input */ + if (inp->index != 0) + return -EINVAL; + + inp->type = V4L2_INPUT_TYPE_CAMERA; + sprintf(inp->name, "Camera %u", inp->index); + return 0; +} + +static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) +{ + *i = 0; + return 0; +} + +static int vidioc_s_input(struct file *file, void *priv, unsigned int i) +{ + if (i != 0) + return -EINVAL; + + return 0; +} + +/* capture ioctls */ +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + u32 major; + u32 minor; + + vchiq_mmal_version(dev->instance, &major, &minor); + + strcpy(cap->driver, "bm2835 mmal"); + snprintf(cap->card, sizeof(cap->card), "mmal service %d.%d", + major, minor); + + snprintf(cap->bus_info, sizeof(cap->bus_info), + "platform:%s", dev->v4l2_dev.name); + cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | + V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; + + return 0; +} + +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct mmal_fmt *fmt; + + if (f->index >= ARRAY_SIZE(formats)) + return -EINVAL; + + fmt = &formats[f->index]; + + strlcpy(f->description, fmt->name, sizeof(f->description)); + f->pixelformat = fmt->fourcc; + f->flags = fmt->flags; + + return 0; +} + +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + + f->fmt.pix.width = dev->capture.width; + f->fmt.pix.height = dev->capture.height; + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.pixelformat = dev->capture.fmt->fourcc; + f->fmt.pix.bytesperline = dev->capture.stride; + f->fmt.pix.sizeimage = dev->capture.buffersize; + + if (dev->capture.fmt->fourcc == V4L2_PIX_FMT_RGB24) + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + else if (dev->capture.fmt->fourcc == V4L2_PIX_FMT_JPEG) + f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; + else + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + f->fmt.pix.priv = 0; + + v4l2_dump_pix_format(1, bcm2835_v4l2_debug, &dev->v4l2_dev, &f->fmt.pix, + __func__); + return 0; +} + +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + struct mmal_fmt *mfmt; + + mfmt = get_format(f); + if (!mfmt) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Fourcc format (0x%08x) unknown.\n", + f->fmt.pix.pixelformat); + f->fmt.pix.pixelformat = formats[0].fourcc; + mfmt = get_format(f); + } + + f->fmt.pix.field = V4L2_FIELD_NONE; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Clipping/aligning %dx%d format %08X\n", + f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.pixelformat); + + v4l_bound_align_image(&f->fmt.pix.width, MIN_WIDTH, dev->max_width, 1, + &f->fmt.pix.height, MIN_HEIGHT, dev->max_height, + 1, 0); + f->fmt.pix.bytesperline = f->fmt.pix.width * mfmt->ybbp; + + /* Image buffer has to be padded to allow for alignment, even though + * we then remove that padding before delivering the buffer. + */ + f->fmt.pix.sizeimage = ((f->fmt.pix.height + 15) & ~15) * + (((f->fmt.pix.width + 31) & ~31) * mfmt->depth) >> 3; + + if ((mfmt->flags & V4L2_FMT_FLAG_COMPRESSED) && + f->fmt.pix.sizeimage < MIN_BUFFER_SIZE) + f->fmt.pix.sizeimage = MIN_BUFFER_SIZE; + + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG) + f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; + else + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + f->fmt.pix.priv = 0; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Now %dx%d format %08X\n", + f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.pixelformat); + + v4l2_dump_pix_format(1, bcm2835_v4l2_debug, &dev->v4l2_dev, &f->fmt.pix, + __func__); + return 0; +} + +static int mmal_setup_components(struct bm2835_mmal_dev *dev, + struct v4l2_format *f) +{ + int ret; + struct vchiq_mmal_port *port = NULL, *camera_port = NULL; + struct vchiq_mmal_component *encode_component = NULL; + struct mmal_fmt *mfmt = get_format(f); + + BUG_ON(!mfmt); + + if (dev->capture.encode_component) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "vid_cap - disconnect previous tunnel\n"); + + /* Disconnect any previous connection */ + vchiq_mmal_port_connect_tunnel(dev->instance, + dev->capture.camera_port, NULL); + dev->capture.camera_port = NULL; + ret = vchiq_mmal_component_disable(dev->instance, + dev->capture. + encode_component); + if (ret) + v4l2_err(&dev->v4l2_dev, + "Failed to disable encode component %d\n", + ret); + + dev->capture.encode_component = NULL; + } + /* format dependent port setup */ + switch (mfmt->mmal_component) { + case MMAL_COMPONENT_CAMERA: + /* Make a further decision on port based on resolution */ + if (f->fmt.pix.width <= max_video_width + && f->fmt.pix.height <= max_video_height) + camera_port = port = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_VIDEO]; + else + camera_port = port = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_CAPTURE]; + break; + case MMAL_COMPONENT_IMAGE_ENCODE: + encode_component = dev->component[MMAL_COMPONENT_IMAGE_ENCODE]; + port = &dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->output[0]; + camera_port = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_CAPTURE]; + break; + case MMAL_COMPONENT_VIDEO_ENCODE: + encode_component = dev->component[MMAL_COMPONENT_VIDEO_ENCODE]; + port = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0]; + camera_port = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_VIDEO]; + break; + default: + break; + } + + if (!port) + return -EINVAL; + + if (encode_component) + camera_port->format.encoding = MMAL_ENCODING_OPAQUE; + else + camera_port->format.encoding = mfmt->mmal; + + if (dev->rgb_bgr_swapped) { + if (camera_port->format.encoding == MMAL_ENCODING_RGB24) + camera_port->format.encoding = MMAL_ENCODING_BGR24; + else if (camera_port->format.encoding == MMAL_ENCODING_BGR24) + camera_port->format.encoding = MMAL_ENCODING_RGB24; + } + + camera_port->format.encoding_variant = 0; + camera_port->es.video.width = f->fmt.pix.width; + camera_port->es.video.height = f->fmt.pix.height; + camera_port->es.video.crop.x = 0; + camera_port->es.video.crop.y = 0; + camera_port->es.video.crop.width = f->fmt.pix.width; + camera_port->es.video.crop.height = f->fmt.pix.height; + camera_port->es.video.frame_rate.num = 0; + camera_port->es.video.frame_rate.den = 1; + camera_port->es.video.color_space = MMAL_COLOR_SPACE_JPEG_JFIF; + + ret = vchiq_mmal_port_set_format(dev->instance, camera_port); + + if (!ret + && camera_port == + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_VIDEO]) { + bool overlay_enabled = + !!dev->component[MMAL_COMPONENT_PREVIEW]->enabled; + struct vchiq_mmal_port *preview_port = + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_PREVIEW]; + /* Preview and encode ports need to match on resolution */ + if (overlay_enabled) { + /* Need to disable the overlay before we can update + * the resolution + */ + ret = + vchiq_mmal_port_disable(dev->instance, + preview_port); + if (!ret) + ret = + vchiq_mmal_port_connect_tunnel( + dev->instance, + preview_port, + NULL); + } + preview_port->es.video.width = f->fmt.pix.width; + preview_port->es.video.height = f->fmt.pix.height; + preview_port->es.video.crop.x = 0; + preview_port->es.video.crop.y = 0; + preview_port->es.video.crop.width = f->fmt.pix.width; + preview_port->es.video.crop.height = f->fmt.pix.height; + preview_port->es.video.frame_rate.num = + dev->capture.timeperframe.denominator; + preview_port->es.video.frame_rate.den = + dev->capture.timeperframe.numerator; + ret = vchiq_mmal_port_set_format(dev->instance, preview_port); + if (overlay_enabled) { + ret = vchiq_mmal_port_connect_tunnel( + dev->instance, + preview_port, + &dev->component[MMAL_COMPONENT_PREVIEW]->input[0]); + if (!ret) + ret = vchiq_mmal_port_enable(dev->instance, + preview_port, + NULL); + } + } + + if (ret) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s failed to set format %dx%d %08X\n", __func__, + f->fmt.pix.width, f->fmt.pix.height, + f->fmt.pix.pixelformat); + /* ensure capture is not going to be tried */ + dev->capture.port = NULL; + } else { + if (encode_component) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "vid_cap - set up encode comp\n"); + + /* configure buffering */ + camera_port->current_buffer.size = + camera_port->recommended_buffer.size; + camera_port->current_buffer.num = + camera_port->recommended_buffer.num; + + ret = + vchiq_mmal_port_connect_tunnel( + dev->instance, + camera_port, + &encode_component->input[0]); + if (ret) { + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, + "%s failed to create connection\n", + __func__); + /* ensure capture is not going to be tried */ + dev->capture.port = NULL; + } else { + port->es.video.width = f->fmt.pix.width; + port->es.video.height = f->fmt.pix.height; + port->es.video.crop.x = 0; + port->es.video.crop.y = 0; + port->es.video.crop.width = f->fmt.pix.width; + port->es.video.crop.height = f->fmt.pix.height; + port->es.video.frame_rate.num = + dev->capture.timeperframe.denominator; + port->es.video.frame_rate.den = + dev->capture.timeperframe.numerator; + + port->format.encoding = mfmt->mmal; + port->format.encoding_variant = 0; + /* Set any encoding specific parameters */ + switch (mfmt->mmal_component) { + case MMAL_COMPONENT_VIDEO_ENCODE: + port->format.bitrate = + dev->capture.encode_bitrate; + break; + case MMAL_COMPONENT_IMAGE_ENCODE: + /* Could set EXIF parameters here */ + break; + default: + break; + } + ret = vchiq_mmal_port_set_format(dev->instance, + port); + if (ret) + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, + "%s failed to set format %dx%d fmt %08X\n", + __func__, + f->fmt.pix.width, + f->fmt.pix.height, + f->fmt.pix.pixelformat + ); + } + + if (!ret) { + ret = vchiq_mmal_component_enable( + dev->instance, + encode_component); + if (ret) { + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, + "%s Failed to enable encode components\n", + __func__); + } + } + if (!ret) { + /* configure buffering */ + port->current_buffer.num = 1; + port->current_buffer.size = + f->fmt.pix.sizeimage; + if (port->format.encoding == + MMAL_ENCODING_JPEG) { + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, + "JPG - buf size now %d was %d\n", + f->fmt.pix.sizeimage, + port->current_buffer.size); + port->current_buffer.size = + (f->fmt.pix.sizeimage < + (100 << 10)) + ? (100 << 10) : f->fmt.pix. + sizeimage; + } + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, + "vid_cap - cur_buf.size set to %d\n", + f->fmt.pix.sizeimage); + port->current_buffer.alignment = 0; + } + } else { + /* configure buffering */ + camera_port->current_buffer.num = 1; + camera_port->current_buffer.size = f->fmt.pix.sizeimage; + camera_port->current_buffer.alignment = 0; + } + + if (!ret) { + dev->capture.fmt = mfmt; + dev->capture.stride = f->fmt.pix.bytesperline; + dev->capture.width = camera_port->es.video.crop.width; + dev->capture.height = camera_port->es.video.crop.height; + dev->capture.buffersize = port->current_buffer.size; + + /* select port for capture */ + dev->capture.port = port; + dev->capture.camera_port = camera_port; + dev->capture.encode_component = encode_component; + v4l2_dbg(1, bcm2835_v4l2_debug, + &dev->v4l2_dev, + "Set dev->capture.fmt %08X, %dx%d, stride %d, size %d", + port->format.encoding, + dev->capture.width, dev->capture.height, + dev->capture.stride, dev->capture.buffersize); + } + } + + /* todo: Need to convert the vchiq/mmal error into a v4l2 error. */ + return ret; +} + +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + int ret; + struct bm2835_mmal_dev *dev = video_drvdata(file); + struct mmal_fmt *mfmt; + + /* try the format to set valid parameters */ + ret = vidioc_try_fmt_vid_cap(file, priv, f); + if (ret) { + v4l2_err(&dev->v4l2_dev, + "vid_cap - vidioc_try_fmt_vid_cap failed\n"); + return ret; + } + + /* if a capture is running refuse to set format */ + if (vb2_is_busy(&dev->capture.vb_vidq)) { + v4l2_info(&dev->v4l2_dev, "%s device busy\n", __func__); + return -EBUSY; + } + + /* If the format is unsupported v4l2 says we should switch to + * a supported one and not return an error. + */ + mfmt = get_format(f); + if (!mfmt) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Fourcc format (0x%08x) unknown.\n", + f->fmt.pix.pixelformat); + f->fmt.pix.pixelformat = formats[0].fourcc; + mfmt = get_format(f); + } + + ret = mmal_setup_components(dev, f); + if (ret != 0) { + v4l2_err(&dev->v4l2_dev, + "%s: failed to setup mmal components: %d\n", + __func__, ret); + ret = -EINVAL; + } + + return ret; +} + +static int vidioc_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + static const struct v4l2_frmsize_stepwise sizes = { + MIN_WIDTH, 0, 2, + MIN_HEIGHT, 0, 2 + }; + int i; + + if (fsize->index) + return -EINVAL; + for (i = 0; i < ARRAY_SIZE(formats); i++) + if (formats[i].fourcc == fsize->pixel_format) + break; + if (i == ARRAY_SIZE(formats)) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise = sizes; + fsize->stepwise.max_width = dev->max_width; + fsize->stepwise.max_height = dev->max_height; + return 0; +} + +/* timeperframe is arbitrary and continuous */ +static int vidioc_enum_frameintervals(struct file *file, void *priv, + struct v4l2_frmivalenum *fival) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + int i; + + if (fival->index) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(formats); i++) + if (formats[i].fourcc == fival->pixel_format) + break; + if (i == ARRAY_SIZE(formats)) + return -EINVAL; + + /* regarding width & height - we support any within range */ + if (fival->width < MIN_WIDTH || fival->width > dev->max_width || + fival->height < MIN_HEIGHT || fival->height > dev->max_height) + return -EINVAL; + + fival->type = V4L2_FRMIVAL_TYPE_CONTINUOUS; + + /* fill in stepwise (step=1.0 is required by V4L2 spec) */ + fival->stepwise.min = tpf_min; + fival->stepwise.max = tpf_max; + fival->stepwise.step = (struct v4l2_fract) {1, 1}; + + return 0; +} + +static int vidioc_g_parm(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.timeperframe = dev->capture.timeperframe; + parm->parm.capture.readbuffers = 1; + return 0; +} + +#define FRACT_CMP(a, OP, b) \ + ((u64)(a).numerator * (b).denominator OP \ + (u64)(b).numerator * (a).denominator) + +static int vidioc_s_parm(struct file *file, void *priv, + struct v4l2_streamparm *parm) +{ + struct bm2835_mmal_dev *dev = video_drvdata(file); + struct v4l2_fract tpf; + struct mmal_parameter_rational fps_param; + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + tpf = parm->parm.capture.timeperframe; + + /* tpf: {*, 0} resets timing; clip to [min, max]*/ + tpf = tpf.denominator ? tpf : tpf_default; + tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf; + tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf; + + dev->capture.timeperframe = tpf; + parm->parm.capture.timeperframe = tpf; + parm->parm.capture.readbuffers = 1; + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + + fps_param.num = 0; /* Select variable fps, and then use + * FPS_RANGE to select the actual limits. + */ + fps_param.den = 1; + set_framerate_params(dev); + + return 0; +} + +static const struct v4l2_ioctl_ops camera0_ioctl_ops = { + /* overlay */ + .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay, + .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, + .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, + .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, + .vidioc_overlay = vidioc_overlay, + .vidioc_g_fbuf = vidioc_g_fbuf, + + /* inputs */ + .vidioc_enum_input = vidioc_enum_input, + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + + /* capture */ + .vidioc_querycap = vidioc_querycap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + + /* buffer management */ + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_enum_framesizes = vidioc_enum_framesizes, + .vidioc_enum_frameintervals = vidioc_enum_frameintervals, + .vidioc_g_parm = vidioc_g_parm, + .vidioc_s_parm = vidioc_s_parm, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/* ------------------------------------------------------------------ + * Driver init/finalise + * ------------------------------------------------------------------ + */ + +static const struct v4l2_file_operations camera0_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ + .mmap = vb2_fop_mmap, +}; + +static struct video_device vdev_template = { + .name = "camera0", + .fops = &camera0_fops, + .ioctl_ops = &camera0_ioctl_ops, + .release = video_device_release_empty, +}; + +/* Returns the number of cameras, and also the max resolution supported + * by those cameras. + */ +static int get_num_cameras(struct vchiq_mmal_instance *instance, + unsigned int resolutions[][2], int num_resolutions) +{ + int ret; + struct vchiq_mmal_component *cam_info_component; + struct mmal_parameter_camera_info_t cam_info = {0}; + int param_size = sizeof(cam_info); + int i; + + /* create a camera_info component */ + ret = vchiq_mmal_component_init(instance, "camera_info", + &cam_info_component); + if (ret < 0) + /* Unusual failure - let's guess one camera. */ + return 1; + + if (vchiq_mmal_port_parameter_get(instance, + &cam_info_component->control, + MMAL_PARAMETER_CAMERA_INFO, + &cam_info, + ¶m_size)) { + pr_info("Failed to get camera info\n"); + } + for (i = 0; + i < min_t(unsigned int, cam_info.num_cameras, num_resolutions); + i++) { + resolutions[i][0] = cam_info.cameras[i].max_width; + resolutions[i][1] = cam_info.cameras[i].max_height; + } + + vchiq_mmal_component_finalise(instance, + cam_info_component); + + return cam_info.num_cameras; +} + +static int set_camera_parameters(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *camera, + struct bm2835_mmal_dev *dev) +{ + int ret; + struct mmal_parameter_camera_config cam_config = { + .max_stills_w = dev->max_width, + .max_stills_h = dev->max_height, + .stills_yuv422 = 1, + .one_shot_stills = 1, + .max_preview_video_w = (max_video_width > 1920) ? + max_video_width : 1920, + .max_preview_video_h = (max_video_height > 1088) ? + max_video_height : 1088, + .num_preview_video_frames = 3, + .stills_capture_circular_buffer_height = 0, + .fast_preview_resume = 0, + .use_stc_timestamp = MMAL_PARAM_TIMESTAMP_MODE_RAW_STC + }; + + ret = vchiq_mmal_port_parameter_set(instance, &camera->control, + MMAL_PARAMETER_CAMERA_CONFIG, + &cam_config, sizeof(cam_config)); + return ret; +} + +#define MAX_SUPPORTED_ENCODINGS 20 + +/* MMAL instance and component init */ +static int __init mmal_init(struct bm2835_mmal_dev *dev) +{ + int ret; + struct mmal_es_format_local *format; + u32 bool_true = 1; + u32 supported_encodings[MAX_SUPPORTED_ENCODINGS]; + int param_size; + struct vchiq_mmal_component *camera; + + ret = vchiq_mmal_init(&dev->instance); + if (ret < 0) + return ret; + + /* get the camera component ready */ + ret = vchiq_mmal_component_init(dev->instance, "ril.camera", + &dev->component[MMAL_COMPONENT_CAMERA]); + if (ret < 0) + goto unreg_mmal; + + camera = dev->component[MMAL_COMPONENT_CAMERA]; + if (camera->outputs < MMAL_CAMERA_PORT_COUNT) { + ret = -EINVAL; + goto unreg_camera; + } + + ret = set_camera_parameters(dev->instance, + camera, + dev); + if (ret < 0) + goto unreg_camera; + + /* There was an error in the firmware that meant the camera component + * produced BGR instead of RGB. + * This is now fixed, but in order to support the old firmwares, we + * have to check. + */ + dev->rgb_bgr_swapped = true; + param_size = sizeof(supported_encodings); + ret = vchiq_mmal_port_parameter_get(dev->instance, + &camera->output[MMAL_CAMERA_PORT_CAPTURE], + MMAL_PARAMETER_SUPPORTED_ENCODINGS, + &supported_encodings, + ¶m_size); + if (ret == 0) { + int i; + + for (i = 0; i < param_size / sizeof(u32); i++) { + if (supported_encodings[i] == MMAL_ENCODING_BGR24) { + /* Found BGR24 first - old firmware. */ + break; + } + if (supported_encodings[i] == MMAL_ENCODING_RGB24) { + /* Found RGB24 first + * new firmware, so use RGB24. + */ + dev->rgb_bgr_swapped = false; + break; + } + } + } + format = &camera->output[MMAL_CAMERA_PORT_PREVIEW].format; + + format->encoding = MMAL_ENCODING_OPAQUE; + format->encoding_variant = MMAL_ENCODING_I420; + + format->es->video.width = 1024; + format->es->video.height = 768; + format->es->video.crop.x = 0; + format->es->video.crop.y = 0; + format->es->video.crop.width = 1024; + format->es->video.crop.height = 768; + format->es->video.frame_rate.num = 0; /* Rely on fps_range */ + format->es->video.frame_rate.den = 1; + + format = &camera->output[MMAL_CAMERA_PORT_VIDEO].format; + + format->encoding = MMAL_ENCODING_OPAQUE; + format->encoding_variant = MMAL_ENCODING_I420; + + format->es->video.width = 1024; + format->es->video.height = 768; + format->es->video.crop.x = 0; + format->es->video.crop.y = 0; + format->es->video.crop.width = 1024; + format->es->video.crop.height = 768; + format->es->video.frame_rate.num = 0; /* Rely on fps_range */ + format->es->video.frame_rate.den = 1; + + vchiq_mmal_port_parameter_set(dev->instance, + &camera->output[MMAL_CAMERA_PORT_VIDEO], + MMAL_PARAMETER_NO_IMAGE_PADDING, + &bool_true, sizeof(bool_true)); + + format = &camera->output[MMAL_CAMERA_PORT_CAPTURE].format; + + format->encoding = MMAL_ENCODING_OPAQUE; + + format->es->video.width = 2592; + format->es->video.height = 1944; + format->es->video.crop.x = 0; + format->es->video.crop.y = 0; + format->es->video.crop.width = 2592; + format->es->video.crop.height = 1944; + format->es->video.frame_rate.num = 0; /* Rely on fps_range */ + format->es->video.frame_rate.den = 1; + + dev->capture.width = format->es->video.width; + dev->capture.height = format->es->video.height; + dev->capture.fmt = &formats[0]; + dev->capture.encode_component = NULL; + dev->capture.timeperframe = tpf_default; + dev->capture.enc_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH; + dev->capture.enc_level = V4L2_MPEG_VIDEO_H264_LEVEL_4_0; + + vchiq_mmal_port_parameter_set(dev->instance, + &camera->output[MMAL_CAMERA_PORT_CAPTURE], + MMAL_PARAMETER_NO_IMAGE_PADDING, + &bool_true, sizeof(bool_true)); + + /* get the preview component ready */ + ret = vchiq_mmal_component_init( + dev->instance, "ril.video_render", + &dev->component[MMAL_COMPONENT_PREVIEW]); + if (ret < 0) + goto unreg_camera; + + if (dev->component[MMAL_COMPONENT_PREVIEW]->inputs < 1) { + ret = -EINVAL; + pr_debug("too few input ports %d needed %d\n", + dev->component[MMAL_COMPONENT_PREVIEW]->inputs, 1); + goto unreg_preview; + } + + /* get the image encoder component ready */ + ret = vchiq_mmal_component_init( + dev->instance, "ril.image_encode", + &dev->component[MMAL_COMPONENT_IMAGE_ENCODE]); + if (ret < 0) + goto unreg_preview; + + if (dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->inputs < 1) { + ret = -EINVAL; + v4l2_err(&dev->v4l2_dev, "too few input ports %d needed %d\n", + dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->inputs, + 1); + goto unreg_image_encoder; + } + + /* get the video encoder component ready */ + ret = vchiq_mmal_component_init(dev->instance, "ril.video_encode", + &dev-> + component[MMAL_COMPONENT_VIDEO_ENCODE]); + if (ret < 0) + goto unreg_image_encoder; + + if (dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->inputs < 1) { + ret = -EINVAL; + v4l2_err(&dev->v4l2_dev, "too few input ports %d needed %d\n", + dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->inputs, + 1); + goto unreg_vid_encoder; + } + + { + struct vchiq_mmal_port *encoder_port = + &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0]; + encoder_port->format.encoding = MMAL_ENCODING_H264; + ret = vchiq_mmal_port_set_format(dev->instance, + encoder_port); + } + + { + unsigned int enable = 1; + + vchiq_mmal_port_parameter_set( + dev->instance, + &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->control, + MMAL_PARAMETER_VIDEO_IMMUTABLE_INPUT, + &enable, sizeof(enable)); + + vchiq_mmal_port_parameter_set(dev->instance, + &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->control, + MMAL_PARAMETER_MINIMISE_FRAGMENTATION, + &enable, + sizeof(enable)); + } + ret = bm2835_mmal_set_all_camera_controls(dev); + if (ret < 0) + goto unreg_vid_encoder; + + return 0; + +unreg_vid_encoder: + pr_err("Cleanup: Destroy video encoder\n"); + vchiq_mmal_component_finalise( + dev->instance, + dev->component[MMAL_COMPONENT_VIDEO_ENCODE]); + +unreg_image_encoder: + pr_err("Cleanup: Destroy image encoder\n"); + vchiq_mmal_component_finalise( + dev->instance, + dev->component[MMAL_COMPONENT_IMAGE_ENCODE]); + +unreg_preview: + pr_err("Cleanup: Destroy video render\n"); + vchiq_mmal_component_finalise(dev->instance, + dev->component[MMAL_COMPONENT_PREVIEW]); + +unreg_camera: + pr_err("Cleanup: Destroy camera\n"); + vchiq_mmal_component_finalise(dev->instance, + dev->component[MMAL_COMPONENT_CAMERA]); + +unreg_mmal: + vchiq_mmal_finalise(dev->instance); + return ret; +} + +static int __init bm2835_mmal_init_device(struct bm2835_mmal_dev *dev, + struct video_device *vfd) +{ + int ret; + + *vfd = vdev_template; + + vfd->v4l2_dev = &dev->v4l2_dev; + + vfd->lock = &dev->mutex; + + vfd->queue = &dev->capture.vb_vidq; + + /* video device needs to be able to access instance data */ + video_set_drvdata(vfd, dev); + + ret = video_register_device(vfd, + VFL_TYPE_GRABBER, + video_nr[dev->camera_num]); + if (ret < 0) + return ret; + + v4l2_info(vfd->v4l2_dev, + "V4L2 device registered as %s - stills mode > %dx%d\n", + video_device_node_name(vfd), + max_video_width, max_video_height); + + return 0; +} + +static void bcm2835_cleanup_instance(struct bm2835_mmal_dev *dev) +{ + if (!dev) + return; + + v4l2_info(&dev->v4l2_dev, "unregistering %s\n", + video_device_node_name(&dev->vdev)); + + video_unregister_device(&dev->vdev); + + if (dev->capture.encode_component) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "mmal_exit - disconnect tunnel\n"); + vchiq_mmal_port_connect_tunnel(dev->instance, + dev->capture.camera_port, NULL); + vchiq_mmal_component_disable(dev->instance, + dev->capture.encode_component); + } + vchiq_mmal_component_disable(dev->instance, + dev->component[MMAL_COMPONENT_CAMERA]); + + vchiq_mmal_component_finalise(dev->instance, + dev-> + component[MMAL_COMPONENT_VIDEO_ENCODE]); + + vchiq_mmal_component_finalise(dev->instance, + dev-> + component[MMAL_COMPONENT_IMAGE_ENCODE]); + + vchiq_mmal_component_finalise(dev->instance, + dev->component[MMAL_COMPONENT_PREVIEW]); + + vchiq_mmal_component_finalise(dev->instance, + dev->component[MMAL_COMPONENT_CAMERA]); + + v4l2_ctrl_handler_free(&dev->ctrl_handler); + + v4l2_device_unregister(&dev->v4l2_dev); + + kfree(dev); +} + +static struct v4l2_format default_v4l2_format = { + .fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG, + .fmt.pix.width = 1024, + .fmt.pix.bytesperline = 0, + .fmt.pix.height = 768, + .fmt.pix.sizeimage = 1024 * 768, +}; + +static int __init bm2835_mmal_init(void) +{ + int ret; + struct bm2835_mmal_dev *dev; + struct vb2_queue *q; + int camera; + unsigned int num_cameras; + struct vchiq_mmal_instance *instance; + unsigned int resolutions[MAX_BCM2835_CAMERAS][2]; + int i; + + ret = vchiq_mmal_init(&instance); + if (ret < 0) + return ret; + + num_cameras = get_num_cameras(instance, + resolutions, + MAX_BCM2835_CAMERAS); + if (num_cameras > MAX_BCM2835_CAMERAS) + num_cameras = MAX_BCM2835_CAMERAS; + + for (camera = 0; camera < num_cameras; camera++) { + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + ret = -ENOMEM; + goto cleanup_gdev; + } + + dev->camera_num = camera; + dev->max_width = resolutions[camera][0]; + dev->max_height = resolutions[camera][1]; + + /* setup device defaults */ + dev->overlay.w.left = 150; + dev->overlay.w.top = 50; + dev->overlay.w.width = 1024; + dev->overlay.w.height = 768; + dev->overlay.clipcount = 0; + dev->overlay.field = V4L2_FIELD_NONE; + dev->overlay.global_alpha = 255; + + dev->capture.fmt = &formats[3]; /* JPEG */ + + /* v4l device registration */ + snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), + "%s", BM2835_MMAL_MODULE_NAME); + ret = v4l2_device_register(NULL, &dev->v4l2_dev); + if (ret) + goto free_dev; + + /* setup v4l controls */ + ret = bm2835_mmal_init_controls(dev, &dev->ctrl_handler); + if (ret < 0) + goto unreg_dev; + dev->v4l2_dev.ctrl_handler = &dev->ctrl_handler; + + /* mmal init */ + dev->instance = instance; + ret = mmal_init(dev); + if (ret < 0) + goto unreg_dev; + + /* initialize queue */ + q = &dev->capture.vb_vidq; + memset(q, 0, sizeof(*q)); + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + q->drv_priv = dev; + q->buf_struct_size = sizeof(struct mmal_buffer); + q->ops = &bm2835_mmal_video_qops; + q->mem_ops = &vb2_vmalloc_memops; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + ret = vb2_queue_init(q); + if (ret < 0) + goto unreg_dev; + + /* v4l2 core mutex used to protect all fops and v4l2 ioctls. */ + mutex_init(&dev->mutex); + + /* initialise video devices */ + ret = bm2835_mmal_init_device(dev, &dev->vdev); + if (ret < 0) + goto unreg_dev; + + /* Really want to call vidioc_s_fmt_vid_cap with the default + * format, but currently the APIs don't join up. + */ + ret = mmal_setup_components(dev, &default_v4l2_format); + if (ret < 0) { + v4l2_err(&dev->v4l2_dev, + "%s: could not setup components\n", __func__); + goto unreg_dev; + } + + v4l2_info(&dev->v4l2_dev, + "Broadcom 2835 MMAL video capture ver %s loaded.\n", + BM2835_MMAL_VERSION); + + gdev[camera] = dev; + } + return 0; + +unreg_dev: + v4l2_ctrl_handler_free(&dev->ctrl_handler); + v4l2_device_unregister(&dev->v4l2_dev); + +free_dev: + kfree(dev); + +cleanup_gdev: + for (i = 0; i < camera; i++) { + bcm2835_cleanup_instance(gdev[i]); + gdev[i] = NULL; + } + pr_info("%s: error %d while loading driver\n", + BM2835_MMAL_MODULE_NAME, ret); + + return ret; +} + +static void __exit bm2835_mmal_exit(void) +{ + int camera; + struct vchiq_mmal_instance *instance = gdev[0]->instance; + + for (camera = 0; camera < MAX_BCM2835_CAMERAS; camera++) { + bcm2835_cleanup_instance(gdev[camera]); + gdev[camera] = NULL; + } + vchiq_mmal_finalise(instance); +} + +module_init(bm2835_mmal_init); +module_exit(bm2835_mmal_exit); diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h new file mode 100644 index 0000000..4040374 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h @@ -0,0 +1,145 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + * + * core driver device + */ + +#define V4L2_CTRL_COUNT 29 /* number of v4l controls */ + +enum { + MMAL_COMPONENT_CAMERA = 0, + MMAL_COMPONENT_PREVIEW, + MMAL_COMPONENT_IMAGE_ENCODE, + MMAL_COMPONENT_VIDEO_ENCODE, + MMAL_COMPONENT_COUNT +}; + +enum { + MMAL_CAMERA_PORT_PREVIEW = 0, + MMAL_CAMERA_PORT_VIDEO, + MMAL_CAMERA_PORT_CAPTURE, + MMAL_CAMERA_PORT_COUNT +}; + +#define PREVIEW_LAYER 2 + +extern int bcm2835_v4l2_debug; + +struct bm2835_mmal_dev { + /* v4l2 devices */ + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct mutex mutex; + + /* controls */ + struct v4l2_ctrl_handler ctrl_handler; + struct v4l2_ctrl *ctrls[V4L2_CTRL_COUNT]; + enum v4l2_scene_mode scene_mode; + struct mmal_colourfx colourfx; + int hflip; + int vflip; + int red_gain; + int blue_gain; + enum mmal_parameter_exposuremode exposure_mode_user; + enum v4l2_exposure_auto_type exposure_mode_v4l2_user; + /* active exposure mode may differ if selected via a scene mode */ + enum mmal_parameter_exposuremode exposure_mode_active; + enum mmal_parameter_exposuremeteringmode metering_mode; + unsigned int manual_shutter_speed; + bool exp_auto_priority; + bool manual_iso_enabled; + u32 iso; + + /* allocated mmal instance and components */ + struct vchiq_mmal_instance *instance; + struct vchiq_mmal_component *component[MMAL_COMPONENT_COUNT]; + int camera_use_count; + + struct v4l2_window overlay; + + struct { + unsigned int width; /* width */ + unsigned int height; /* height */ + unsigned int stride; /* stride */ + unsigned int buffersize; /* buffer size with padding */ + struct mmal_fmt *fmt; + struct v4l2_fract timeperframe; + + /* H264 encode bitrate */ + int encode_bitrate; + /* H264 bitrate mode. CBR/VBR */ + int encode_bitrate_mode; + /* H264 profile */ + enum v4l2_mpeg_video_h264_profile enc_profile; + /* H264 level */ + enum v4l2_mpeg_video_h264_level enc_level; + /* JPEG Q-factor */ + int q_factor; + + struct vb2_queue vb_vidq; + + /* VC start timestamp for streaming */ + s64 vc_start_timestamp; + /* Kernel start timestamp for streaming */ + struct timeval kernel_start_ts; + + struct vchiq_mmal_port *port; /* port being used for capture */ + /* camera port being used for capture */ + struct vchiq_mmal_port *camera_port; + /* component being used for encode */ + struct vchiq_mmal_component *encode_component; + /* number of frames remaining which driver should capture */ + unsigned int frame_count; + /* last frame completion */ + struct completion frame_cmplt; + + } capture; + + unsigned int camera_num; + unsigned int max_width; + unsigned int max_height; + unsigned int rgb_bgr_swapped; +}; + +int bm2835_mmal_init_controls( + struct bm2835_mmal_dev *dev, + struct v4l2_ctrl_handler *hdl); + +int bm2835_mmal_set_all_camera_controls(struct bm2835_mmal_dev *dev); +int set_framerate_params(struct bm2835_mmal_dev *dev); + +/* Debug helpers */ + +#define v4l2_dump_pix_format(level, debug, dev, pix_fmt, desc) \ +{ \ + v4l2_dbg(level, debug, dev, \ +"%s: w %u h %u field %u pfmt 0x%x bpl %u sz_img %u colorspace 0x%x priv %u\n", \ + desc, \ + (pix_fmt)->width, (pix_fmt)->height, (pix_fmt)->field, \ + (pix_fmt)->pixelformat, (pix_fmt)->bytesperline, \ + (pix_fmt)->sizeimage, (pix_fmt)->colorspace, (pix_fmt)->priv); \ +} +#define v4l2_dump_win_format(level, debug, dev, win_fmt, desc) \ +{ \ + v4l2_dbg(level, debug, dev, \ +"%s: w %u h %u l %u t %u field %u chromakey %06X clip %p " \ +"clipcount %u bitmap %p\n", \ + desc, \ + (win_fmt)->w.width, (win_fmt)->w.height, \ + (win_fmt)->w.left, (win_fmt)->w.top, \ + (win_fmt)->field, \ + (win_fmt)->chromakey, \ + (win_fmt)->clips, (win_fmt)->clipcount, \ + (win_fmt)->bitmap); \ +} diff --git a/drivers/staging/vc04_services/bcm2835-camera/controls.c b/drivers/staging/vc04_services/bcm2835-camera/controls.c new file mode 100644 index 0000000..77a5d6f --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c @@ -0,0 +1,1333 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <media/videobuf2-vmalloc.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> +#include <media/v4l2-common.h> + +#include "mmal-common.h" +#include "mmal-vchiq.h" +#include "mmal-parameters.h" +#include "bcm2835-camera.h" + +/* The supported V4L2_CID_AUTO_EXPOSURE_BIAS values are from -4.0 to +4.0. + * MMAL values are in 1/6th increments so the MMAL range is -24 to +24. + * V4L2 docs say value "is expressed in terms of EV, drivers should interpret + * the values as 0.001 EV units, where the value 1000 stands for +1 EV." + * V4L2 is limited to a max of 32 values in a menu, so count in 1/3rds from + * -4 to +4 + */ +static const s64 ev_bias_qmenu[] = { + -4000, -3667, -3333, + -3000, -2667, -2333, + -2000, -1667, -1333, + -1000, -667, -333, + 0, 333, 667, + 1000, 1333, 1667, + 2000, 2333, 2667, + 3000, 3333, 3667, + 4000 +}; + +/* Supported ISO values (*1000) + * ISOO = auto ISO + */ +static const s64 iso_qmenu[] = { + 0, 100000, 200000, 400000, 800000, +}; +static const uint32_t iso_values[] = { + 0, 100, 200, 400, 800, +}; + +static const s64 mains_freq_qmenu[] = { + V4L2_CID_POWER_LINE_FREQUENCY_DISABLED, + V4L2_CID_POWER_LINE_FREQUENCY_50HZ, + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, + V4L2_CID_POWER_LINE_FREQUENCY_AUTO +}; + +/* Supported video encode modes */ +static const s64 bitrate_mode_qmenu[] = { + (s64)V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, + (s64)V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, +}; + +enum bm2835_mmal_ctrl_type { + MMAL_CONTROL_TYPE_STD, + MMAL_CONTROL_TYPE_STD_MENU, + MMAL_CONTROL_TYPE_INT_MENU, + MMAL_CONTROL_TYPE_CLUSTER, /* special cluster entry */ +}; + +struct bm2835_mmal_v4l2_ctrl; + +typedef int(bm2835_mmal_v4l2_ctrl_cb)( + struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl); + +struct bm2835_mmal_v4l2_ctrl { + u32 id; /* v4l2 control identifier */ + enum bm2835_mmal_ctrl_type type; + /* control minimum value or + * mask for MMAL_CONTROL_TYPE_STD_MENU + */ + s32 min; + s32 max; /* maximum value of control */ + s32 def; /* default value of control */ + s32 step; /* step size of the control */ + const s64 *imenu; /* integer menu array */ + u32 mmal_id; /* mmal parameter id */ + bm2835_mmal_v4l2_ctrl_cb *setter; + bool ignore_errors; +}; + +struct v4l2_to_mmal_effects_setting { + u32 v4l2_effect; + u32 mmal_effect; + s32 col_fx_enable; + s32 col_fx_fixed_cbcr; + u32 u; + u32 v; + u32 num_effect_params; + u32 effect_params[MMAL_MAX_IMAGEFX_PARAMETERS]; +}; + +static const struct v4l2_to_mmal_effects_setting + v4l2_to_mmal_effects_values[] = { + { V4L2_COLORFX_NONE, MMAL_PARAM_IMAGEFX_NONE, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_BW, MMAL_PARAM_IMAGEFX_NONE, + 1, 0, 128, 128, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_SEPIA, MMAL_PARAM_IMAGEFX_NONE, + 1, 0, 87, 151, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_NEGATIVE, MMAL_PARAM_IMAGEFX_NEGATIVE, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_EMBOSS, MMAL_PARAM_IMAGEFX_EMBOSS, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_SKETCH, MMAL_PARAM_IMAGEFX_SKETCH, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_SKY_BLUE, MMAL_PARAM_IMAGEFX_PASTEL, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_GRASS_GREEN, MMAL_PARAM_IMAGEFX_WATERCOLOUR, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_SKIN_WHITEN, MMAL_PARAM_IMAGEFX_WASHEDOUT, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_VIVID, MMAL_PARAM_IMAGEFX_SATURATION, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_AQUA, MMAL_PARAM_IMAGEFX_NONE, + 1, 0, 171, 121, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_ART_FREEZE, MMAL_PARAM_IMAGEFX_HATCH, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_SILHOUETTE, MMAL_PARAM_IMAGEFX_FILM, + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} }, + { V4L2_COLORFX_SOLARIZATION, MMAL_PARAM_IMAGEFX_SOLARIZE, + 0, 0, 0, 0, 5, {1, 128, 160, 160, 48} }, + { V4L2_COLORFX_ANTIQUE, MMAL_PARAM_IMAGEFX_COLOURBALANCE, + 0, 0, 0, 0, 3, {108, 274, 238, 0, 0} }, + { V4L2_COLORFX_SET_CBCR, MMAL_PARAM_IMAGEFX_NONE, + 1, 1, 0, 0, 0, {0, 0, 0, 0, 0} } +}; + +struct v4l2_mmal_scene_config { + enum v4l2_scene_mode v4l2_scene; + enum mmal_parameter_exposuremode exposure_mode; + enum mmal_parameter_exposuremeteringmode metering_mode; +}; + +static const struct v4l2_mmal_scene_config scene_configs[] = { + /* V4L2_SCENE_MODE_NONE automatically added */ + { + V4L2_SCENE_MODE_NIGHT, + MMAL_PARAM_EXPOSUREMODE_NIGHT, + MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE + }, + { + V4L2_SCENE_MODE_SPORTS, + MMAL_PARAM_EXPOSUREMODE_SPORTS, + MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE + }, +}; + +/* control handlers*/ + +static int ctrl_set_rational(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + struct mmal_parameter_rational rational_value; + struct vchiq_mmal_port *control; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + rational_value.num = ctrl->val; + rational_value.den = 100; + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &rational_value, + sizeof(rational_value)); +} + +static int ctrl_set_value(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 u32_value; + struct vchiq_mmal_port *control; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + u32_value = ctrl->val; + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); +} + +static int ctrl_set_iso(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 u32_value; + struct vchiq_mmal_port *control; + + if (ctrl->val > mmal_ctrl->max || ctrl->val < mmal_ctrl->min) + return 1; + + if (ctrl->id == V4L2_CID_ISO_SENSITIVITY) + dev->iso = iso_values[ctrl->val]; + else if (ctrl->id == V4L2_CID_ISO_SENSITIVITY_AUTO) + dev->manual_iso_enabled = + (ctrl->val == V4L2_ISO_SENSITIVITY_MANUAL); + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + if (dev->manual_iso_enabled) + u32_value = dev->iso; + else + u32_value = 0; + + return vchiq_mmal_port_parameter_set(dev->instance, control, + MMAL_PARAMETER_ISO, + &u32_value, sizeof(u32_value)); +} + +static int ctrl_set_value_ev(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + s32 s32_value; + struct vchiq_mmal_port *control; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + s32_value = (ctrl->val - 12) * 2; /* Convert from index to 1/6ths */ + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &s32_value, sizeof(s32_value)); +} + +static int ctrl_set_rotate(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + int ret; + u32 u32_value; + struct vchiq_mmal_component *camera; + + camera = dev->component[MMAL_COMPONENT_CAMERA]; + + u32_value = ((ctrl->val % 360) / 90) * 90; + + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[0], + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + if (ret < 0) + return ret; + + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[1], + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + if (ret < 0) + return ret; + + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[2], + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + + return ret; +} + +static int ctrl_set_flip(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + int ret; + u32 u32_value; + struct vchiq_mmal_component *camera; + + if (ctrl->id == V4L2_CID_HFLIP) + dev->hflip = ctrl->val; + else + dev->vflip = ctrl->val; + + camera = dev->component[MMAL_COMPONENT_CAMERA]; + + if (dev->hflip && dev->vflip) + u32_value = MMAL_PARAM_MIRROR_BOTH; + else if (dev->hflip) + u32_value = MMAL_PARAM_MIRROR_HORIZONTAL; + else if (dev->vflip) + u32_value = MMAL_PARAM_MIRROR_VERTICAL; + else + u32_value = MMAL_PARAM_MIRROR_NONE; + + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[0], + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + if (ret < 0) + return ret; + + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[1], + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + if (ret < 0) + return ret; + + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[2], + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + + return ret; +} + +static int ctrl_set_exposure(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + enum mmal_parameter_exposuremode exp_mode = dev->exposure_mode_user; + u32 shutter_speed = 0; + struct vchiq_mmal_port *control; + int ret = 0; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + if (mmal_ctrl->mmal_id == MMAL_PARAMETER_SHUTTER_SPEED) { + /* V4L2 is in 100usec increments. + * MMAL is 1usec. + */ + dev->manual_shutter_speed = ctrl->val * 100; + } else if (mmal_ctrl->mmal_id == MMAL_PARAMETER_EXPOSURE_MODE) { + switch (ctrl->val) { + case V4L2_EXPOSURE_AUTO: + exp_mode = MMAL_PARAM_EXPOSUREMODE_AUTO; + break; + + case V4L2_EXPOSURE_MANUAL: + exp_mode = MMAL_PARAM_EXPOSUREMODE_OFF; + break; + } + dev->exposure_mode_user = exp_mode; + dev->exposure_mode_v4l2_user = ctrl->val; + } else if (mmal_ctrl->id == V4L2_CID_EXPOSURE_AUTO_PRIORITY) { + dev->exp_auto_priority = ctrl->val; + } + + if (dev->scene_mode == V4L2_SCENE_MODE_NONE) { + if (exp_mode == MMAL_PARAM_EXPOSUREMODE_OFF) + shutter_speed = dev->manual_shutter_speed; + + ret = vchiq_mmal_port_parameter_set(dev->instance, + control, + MMAL_PARAMETER_SHUTTER_SPEED, + &shutter_speed, + sizeof(shutter_speed)); + ret += vchiq_mmal_port_parameter_set(dev->instance, + control, + MMAL_PARAMETER_EXPOSURE_MODE, + &exp_mode, + sizeof(u32)); + dev->exposure_mode_active = exp_mode; + } + /* exposure_dynamic_framerate (V4L2_CID_EXPOSURE_AUTO_PRIORITY) should + * always apply irrespective of scene mode. + */ + ret += set_framerate_params(dev); + + return ret; +} + +static int ctrl_set_metering_mode(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + switch (ctrl->val) { + case V4L2_EXPOSURE_METERING_AVERAGE: + dev->metering_mode = MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE; + break; + + case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED: + dev->metering_mode = MMAL_PARAM_EXPOSUREMETERINGMODE_BACKLIT; + break; + + case V4L2_EXPOSURE_METERING_SPOT: + dev->metering_mode = MMAL_PARAM_EXPOSUREMETERINGMODE_SPOT; + break; + + /* todo matrix weighting not added to Linux API till 3.9 + * case V4L2_EXPOSURE_METERING_MATRIX: + * dev->metering_mode = MMAL_PARAM_EXPOSUREMETERINGMODE_MATRIX; + * break; + */ + } + + if (dev->scene_mode == V4L2_SCENE_MODE_NONE) { + struct vchiq_mmal_port *control; + u32 u32_value = dev->metering_mode; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); + } else + return 0; +} + +static int ctrl_set_flicker_avoidance(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 u32_value; + struct vchiq_mmal_port *control; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + switch (ctrl->val) { + case V4L2_CID_POWER_LINE_FREQUENCY_DISABLED: + u32_value = MMAL_PARAM_FLICKERAVOID_OFF; + break; + case V4L2_CID_POWER_LINE_FREQUENCY_50HZ: + u32_value = MMAL_PARAM_FLICKERAVOID_50HZ; + break; + case V4L2_CID_POWER_LINE_FREQUENCY_60HZ: + u32_value = MMAL_PARAM_FLICKERAVOID_60HZ; + break; + case V4L2_CID_POWER_LINE_FREQUENCY_AUTO: + u32_value = MMAL_PARAM_FLICKERAVOID_AUTO; + break; + } + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); +} + +static int ctrl_set_awb_mode(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 u32_value; + struct vchiq_mmal_port *control; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + switch (ctrl->val) { + case V4L2_WHITE_BALANCE_MANUAL: + u32_value = MMAL_PARAM_AWBMODE_OFF; + break; + + case V4L2_WHITE_BALANCE_AUTO: + u32_value = MMAL_PARAM_AWBMODE_AUTO; + break; + + case V4L2_WHITE_BALANCE_INCANDESCENT: + u32_value = MMAL_PARAM_AWBMODE_INCANDESCENT; + break; + + case V4L2_WHITE_BALANCE_FLUORESCENT: + u32_value = MMAL_PARAM_AWBMODE_FLUORESCENT; + break; + + case V4L2_WHITE_BALANCE_FLUORESCENT_H: + u32_value = MMAL_PARAM_AWBMODE_TUNGSTEN; + break; + + case V4L2_WHITE_BALANCE_HORIZON: + u32_value = MMAL_PARAM_AWBMODE_HORIZON; + break; + + case V4L2_WHITE_BALANCE_DAYLIGHT: + u32_value = MMAL_PARAM_AWBMODE_SUNLIGHT; + break; + + case V4L2_WHITE_BALANCE_FLASH: + u32_value = MMAL_PARAM_AWBMODE_FLASH; + break; + + case V4L2_WHITE_BALANCE_CLOUDY: + u32_value = MMAL_PARAM_AWBMODE_CLOUDY; + break; + + case V4L2_WHITE_BALANCE_SHADE: + u32_value = MMAL_PARAM_AWBMODE_SHADE; + break; + } + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); +} + +static int ctrl_set_awb_gains(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + struct vchiq_mmal_port *control; + struct mmal_parameter_awbgains gains; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + if (ctrl->id == V4L2_CID_RED_BALANCE) + dev->red_gain = ctrl->val; + else if (ctrl->id == V4L2_CID_BLUE_BALANCE) + dev->blue_gain = ctrl->val; + + gains.r_gain.num = dev->red_gain; + gains.b_gain.num = dev->blue_gain; + gains.r_gain.den = gains.b_gain.den = 1000; + + return vchiq_mmal_port_parameter_set(dev->instance, control, + mmal_ctrl->mmal_id, + &gains, sizeof(gains)); +} + +static int ctrl_set_image_effect(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + int ret = -EINVAL; + int i, j; + struct vchiq_mmal_port *control; + struct mmal_parameter_imagefx_parameters imagefx; + + for (i = 0; i < ARRAY_SIZE(v4l2_to_mmal_effects_values); i++) { + if (ctrl->val == v4l2_to_mmal_effects_values[i].v4l2_effect) { + imagefx.effect = + v4l2_to_mmal_effects_values[i].mmal_effect; + imagefx.num_effect_params = + v4l2_to_mmal_effects_values[i].num_effect_params; + + if (imagefx.num_effect_params > MMAL_MAX_IMAGEFX_PARAMETERS) + imagefx.num_effect_params = MMAL_MAX_IMAGEFX_PARAMETERS; + + for (j = 0; j < imagefx.num_effect_params; j++) + imagefx.effect_parameter[j] = + v4l2_to_mmal_effects_values[i].effect_params[j]; + + dev->colourfx.enable = + v4l2_to_mmal_effects_values[i].col_fx_enable; + if (!v4l2_to_mmal_effects_values[i].col_fx_fixed_cbcr) { + dev->colourfx.u = + v4l2_to_mmal_effects_values[i].u; + dev->colourfx.v = + v4l2_to_mmal_effects_values[i].v; + } + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + ret = vchiq_mmal_port_parameter_set( + dev->instance, control, + MMAL_PARAMETER_IMAGE_EFFECT_PARAMETERS, + &imagefx, sizeof(imagefx)); + if (ret) + goto exit; + + ret = vchiq_mmal_port_parameter_set( + dev->instance, control, + MMAL_PARAMETER_COLOUR_EFFECT, + &dev->colourfx, sizeof(dev->colourfx)); + } + } + +exit: + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "mmal_ctrl:%p ctrl id:0x%x ctrl val:%d imagefx:0x%x color_effect:%s u:%d v:%d ret %d(%d)\n", + mmal_ctrl, ctrl->id, ctrl->val, imagefx.effect, + dev->colourfx.enable ? "true" : "false", + dev->colourfx.u, dev->colourfx.v, + ret, (ret == 0 ? 0 : -EINVAL)); + return (ret == 0 ? 0 : EINVAL); +} + +static int ctrl_set_colfx(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + int ret = -EINVAL; + struct vchiq_mmal_port *control; + + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + dev->colourfx.enable = (ctrl->val & 0xff00) >> 8; + dev->colourfx.enable = ctrl->val & 0xff; + + ret = vchiq_mmal_port_parameter_set(dev->instance, control, + MMAL_PARAMETER_COLOUR_EFFECT, + &dev->colourfx, + sizeof(dev->colourfx)); + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s: After: mmal_ctrl:%p ctrl id:0x%x ctrl val:%d ret %d(%d)\n", + __func__, mmal_ctrl, ctrl->id, ctrl->val, ret, + (ret == 0 ? 0 : -EINVAL)); + return (ret == 0 ? 0 : EINVAL); +} + +static int ctrl_set_bitrate(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + int ret; + struct vchiq_mmal_port *encoder_out; + + dev->capture.encode_bitrate = ctrl->val; + + encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0]; + + ret = vchiq_mmal_port_parameter_set(dev->instance, encoder_out, + mmal_ctrl->mmal_id, + &ctrl->val, sizeof(ctrl->val)); + ret = 0; + return ret; +} + +static int ctrl_set_bitrate_mode(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 bitrate_mode; + struct vchiq_mmal_port *encoder_out; + + encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0]; + + dev->capture.encode_bitrate_mode = ctrl->val; + switch (ctrl->val) { + default: + case V4L2_MPEG_VIDEO_BITRATE_MODE_VBR: + bitrate_mode = MMAL_VIDEO_RATECONTROL_VARIABLE; + break; + case V4L2_MPEG_VIDEO_BITRATE_MODE_CBR: + bitrate_mode = MMAL_VIDEO_RATECONTROL_CONSTANT; + break; + } + + vchiq_mmal_port_parameter_set(dev->instance, encoder_out, + mmal_ctrl->mmal_id, + &bitrate_mode, + sizeof(bitrate_mode)); + return 0; +} + +static int ctrl_set_image_encode_output(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 u32_value; + struct vchiq_mmal_port *jpeg_out; + + jpeg_out = &dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->output[0]; + + u32_value = ctrl->val; + + return vchiq_mmal_port_parameter_set(dev->instance, jpeg_out, + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); +} + +static int ctrl_set_video_encode_param_output(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + u32 u32_value; + struct vchiq_mmal_port *vid_enc_ctl; + + vid_enc_ctl = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0]; + + u32_value = ctrl->val; + + return vchiq_mmal_port_parameter_set(dev->instance, vid_enc_ctl, + mmal_ctrl->mmal_id, + &u32_value, sizeof(u32_value)); +} + +static int ctrl_set_video_encode_profile_level(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + struct mmal_parameter_video_profile param; + int ret = 0; + + if (ctrl->id == V4L2_CID_MPEG_VIDEO_H264_PROFILE) { + switch (ctrl->val) { + case V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE: + case V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE: + case V4L2_MPEG_VIDEO_H264_PROFILE_MAIN: + case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH: + dev->capture.enc_profile = ctrl->val; + break; + default: + ret = -EINVAL; + break; + } + } else if (ctrl->id == V4L2_CID_MPEG_VIDEO_H264_LEVEL) { + switch (ctrl->val) { + case V4L2_MPEG_VIDEO_H264_LEVEL_1_0: + case V4L2_MPEG_VIDEO_H264_LEVEL_1B: + case V4L2_MPEG_VIDEO_H264_LEVEL_1_1: + case V4L2_MPEG_VIDEO_H264_LEVEL_1_2: + case V4L2_MPEG_VIDEO_H264_LEVEL_1_3: + case V4L2_MPEG_VIDEO_H264_LEVEL_2_0: + case V4L2_MPEG_VIDEO_H264_LEVEL_2_1: + case V4L2_MPEG_VIDEO_H264_LEVEL_2_2: + case V4L2_MPEG_VIDEO_H264_LEVEL_3_0: + case V4L2_MPEG_VIDEO_H264_LEVEL_3_1: + case V4L2_MPEG_VIDEO_H264_LEVEL_3_2: + case V4L2_MPEG_VIDEO_H264_LEVEL_4_0: + dev->capture.enc_level = ctrl->val; + break; + default: + ret = -EINVAL; + break; + } + } + + if (!ret) { + switch (dev->capture.enc_profile) { + case V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE: + param.profile = MMAL_VIDEO_PROFILE_H264_BASELINE; + break; + case V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE: + param.profile = + MMAL_VIDEO_PROFILE_H264_CONSTRAINED_BASELINE; + break; + case V4L2_MPEG_VIDEO_H264_PROFILE_MAIN: + param.profile = MMAL_VIDEO_PROFILE_H264_MAIN; + break; + case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH: + param.profile = MMAL_VIDEO_PROFILE_H264_HIGH; + break; + default: + /* Should never get here */ + break; + } + + switch (dev->capture.enc_level) { + case V4L2_MPEG_VIDEO_H264_LEVEL_1_0: + param.level = MMAL_VIDEO_LEVEL_H264_1; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_1B: + param.level = MMAL_VIDEO_LEVEL_H264_1b; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_1_1: + param.level = MMAL_VIDEO_LEVEL_H264_11; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_1_2: + param.level = MMAL_VIDEO_LEVEL_H264_12; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_1_3: + param.level = MMAL_VIDEO_LEVEL_H264_13; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_2_0: + param.level = MMAL_VIDEO_LEVEL_H264_2; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_2_1: + param.level = MMAL_VIDEO_LEVEL_H264_21; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_2_2: + param.level = MMAL_VIDEO_LEVEL_H264_22; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_3_0: + param.level = MMAL_VIDEO_LEVEL_H264_3; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_3_1: + param.level = MMAL_VIDEO_LEVEL_H264_31; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_3_2: + param.level = MMAL_VIDEO_LEVEL_H264_32; + break; + case V4L2_MPEG_VIDEO_H264_LEVEL_4_0: + param.level = MMAL_VIDEO_LEVEL_H264_4; + break; + default: + /* Should never get here */ + break; + } + + ret = vchiq_mmal_port_parameter_set(dev->instance, + &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0], + mmal_ctrl->mmal_id, + ¶m, sizeof(param)); + } + return ret; +} + +static int ctrl_set_scene_mode(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl *ctrl, + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl) +{ + int ret = 0; + int shutter_speed; + struct vchiq_mmal_port *control; + + v4l2_dbg(0, bcm2835_v4l2_debug, &dev->v4l2_dev, + "scene mode selected %d, was %d\n", ctrl->val, + dev->scene_mode); + control = &dev->component[MMAL_COMPONENT_CAMERA]->control; + + if (ctrl->val == dev->scene_mode) + return 0; + + if (ctrl->val == V4L2_SCENE_MODE_NONE) { + /* Restore all user selections */ + dev->scene_mode = V4L2_SCENE_MODE_NONE; + + if (dev->exposure_mode_user == MMAL_PARAM_EXPOSUREMODE_OFF) + shutter_speed = dev->manual_shutter_speed; + else + shutter_speed = 0; + + v4l2_dbg(0, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s: scene mode none: shut_speed %d, exp_mode %d, metering %d\n", + __func__, shutter_speed, dev->exposure_mode_user, + dev->metering_mode); + ret = vchiq_mmal_port_parameter_set(dev->instance, + control, + MMAL_PARAMETER_SHUTTER_SPEED, + &shutter_speed, + sizeof(shutter_speed)); + ret += vchiq_mmal_port_parameter_set(dev->instance, + control, + MMAL_PARAMETER_EXPOSURE_MODE, + &dev->exposure_mode_user, + sizeof(u32)); + dev->exposure_mode_active = dev->exposure_mode_user; + ret += vchiq_mmal_port_parameter_set(dev->instance, + control, + MMAL_PARAMETER_EXP_METERING_MODE, + &dev->metering_mode, + sizeof(u32)); + ret += set_framerate_params(dev); + } else { + /* Set up scene mode */ + int i; + const struct v4l2_mmal_scene_config *scene = NULL; + int shutter_speed; + enum mmal_parameter_exposuremode exposure_mode; + enum mmal_parameter_exposuremeteringmode metering_mode; + + for (i = 0; i < ARRAY_SIZE(scene_configs); i++) { + if (scene_configs[i].v4l2_scene == + ctrl->val) { + scene = &scene_configs[i]; + break; + } + } + if (!scene) + return -EINVAL; + if (i >= ARRAY_SIZE(scene_configs)) + return -EINVAL; + + /* Set all the values */ + dev->scene_mode = ctrl->val; + + if (scene->exposure_mode == MMAL_PARAM_EXPOSUREMODE_OFF) + shutter_speed = dev->manual_shutter_speed; + else + shutter_speed = 0; + exposure_mode = scene->exposure_mode; + metering_mode = scene->metering_mode; + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s: scene mode none: shut_speed %d, exp_mode %d, metering %d\n", + __func__, shutter_speed, exposure_mode, metering_mode); + + ret = vchiq_mmal_port_parameter_set(dev->instance, control, + MMAL_PARAMETER_SHUTTER_SPEED, + &shutter_speed, + sizeof(shutter_speed)); + ret += vchiq_mmal_port_parameter_set(dev->instance, control, + MMAL_PARAMETER_EXPOSURE_MODE, + &exposure_mode, + sizeof(u32)); + dev->exposure_mode_active = exposure_mode; + ret += vchiq_mmal_port_parameter_set(dev->instance, control, + MMAL_PARAMETER_EXPOSURE_MODE, + &exposure_mode, + sizeof(u32)); + ret += vchiq_mmal_port_parameter_set(dev->instance, control, + MMAL_PARAMETER_EXP_METERING_MODE, + &metering_mode, + sizeof(u32)); + ret += set_framerate_params(dev); + } + if (ret) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "%s: Setting scene to %d, ret=%d\n", + __func__, ctrl->val, ret); + ret = -EINVAL; + } + return 0; +} + +static int bm2835_mmal_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct bm2835_mmal_dev *dev = + container_of(ctrl->handler, struct bm2835_mmal_dev, + ctrl_handler); + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl = ctrl->priv; + int ret; + + if (!mmal_ctrl || mmal_ctrl->id != ctrl->id || !mmal_ctrl->setter) { + pr_warn("mmal_ctrl:%p ctrl id:%d\n", mmal_ctrl, ctrl->id); + return -EINVAL; + } + + ret = mmal_ctrl->setter(dev, ctrl, mmal_ctrl); + if (ret) + pr_warn("ctrl id:%d/MMAL param %08X- returned ret %d\n", + ctrl->id, mmal_ctrl->mmal_id, ret); + if (mmal_ctrl->ignore_errors) + ret = 0; + return ret; +} + +static const struct v4l2_ctrl_ops bm2835_mmal_ctrl_ops = { + .s_ctrl = bm2835_mmal_s_ctrl, +}; + +static const struct bm2835_mmal_v4l2_ctrl v4l2_ctrls[V4L2_CTRL_COUNT] = { + { + V4L2_CID_SATURATION, MMAL_CONTROL_TYPE_STD, + -100, 100, 0, 1, NULL, + MMAL_PARAMETER_SATURATION, + &ctrl_set_rational, + false + }, + { + V4L2_CID_SHARPNESS, MMAL_CONTROL_TYPE_STD, + -100, 100, 0, 1, NULL, + MMAL_PARAMETER_SHARPNESS, + &ctrl_set_rational, + false + }, + { + V4L2_CID_CONTRAST, MMAL_CONTROL_TYPE_STD, + -100, 100, 0, 1, NULL, + MMAL_PARAMETER_CONTRAST, + &ctrl_set_rational, + false + }, + { + V4L2_CID_BRIGHTNESS, MMAL_CONTROL_TYPE_STD, + 0, 100, 50, 1, NULL, + MMAL_PARAMETER_BRIGHTNESS, + &ctrl_set_rational, + false + }, + { + V4L2_CID_ISO_SENSITIVITY, MMAL_CONTROL_TYPE_INT_MENU, + 0, ARRAY_SIZE(iso_qmenu) - 1, 0, 1, iso_qmenu, + MMAL_PARAMETER_ISO, + &ctrl_set_iso, + false + }, + { + V4L2_CID_ISO_SENSITIVITY_AUTO, MMAL_CONTROL_TYPE_STD_MENU, + 0, 1, V4L2_ISO_SENSITIVITY_AUTO, 1, NULL, + MMAL_PARAMETER_ISO, + &ctrl_set_iso, + false + }, + { + V4L2_CID_IMAGE_STABILIZATION, MMAL_CONTROL_TYPE_STD, + 0, 1, 0, 1, NULL, + MMAL_PARAMETER_VIDEO_STABILISATION, + &ctrl_set_value, + false + }, +/* { + * 0, MMAL_CONTROL_TYPE_CLUSTER, 3, 1, 0, NULL, 0, NULL + * }, + */ + { + V4L2_CID_EXPOSURE_AUTO, MMAL_CONTROL_TYPE_STD_MENU, + ~0x03, 3, V4L2_EXPOSURE_AUTO, 0, NULL, + MMAL_PARAMETER_EXPOSURE_MODE, + &ctrl_set_exposure, + false + }, +/* todo this needs mixing in with set exposure + * { + * V4L2_CID_SCENE_MODE, MMAL_CONTROL_TYPE_STD_MENU, + * }, + */ + { + V4L2_CID_EXPOSURE_ABSOLUTE, MMAL_CONTROL_TYPE_STD, + /* Units of 100usecs */ + 1, 1 * 1000 * 10, 100 * 10, 1, NULL, + MMAL_PARAMETER_SHUTTER_SPEED, + &ctrl_set_exposure, + false + }, + { + V4L2_CID_AUTO_EXPOSURE_BIAS, MMAL_CONTROL_TYPE_INT_MENU, + 0, ARRAY_SIZE(ev_bias_qmenu) - 1, + (ARRAY_SIZE(ev_bias_qmenu) + 1) / 2 - 1, 0, ev_bias_qmenu, + MMAL_PARAMETER_EXPOSURE_COMP, + &ctrl_set_value_ev, + false + }, + { + V4L2_CID_EXPOSURE_AUTO_PRIORITY, MMAL_CONTROL_TYPE_STD, + 0, 1, + 0, 1, NULL, + 0, /* Dummy MMAL ID as it gets mapped into FPS range*/ + &ctrl_set_exposure, + false + }, + { + V4L2_CID_EXPOSURE_METERING, + MMAL_CONTROL_TYPE_STD_MENU, + ~0x7, 2, V4L2_EXPOSURE_METERING_AVERAGE, 0, NULL, + MMAL_PARAMETER_EXP_METERING_MODE, + &ctrl_set_metering_mode, + false + }, + { + V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, + MMAL_CONTROL_TYPE_STD_MENU, + ~0x3ff, 9, V4L2_WHITE_BALANCE_AUTO, 0, NULL, + MMAL_PARAMETER_AWB_MODE, + &ctrl_set_awb_mode, + false + }, + { + V4L2_CID_RED_BALANCE, MMAL_CONTROL_TYPE_STD, + 1, 7999, 1000, 1, NULL, + MMAL_PARAMETER_CUSTOM_AWB_GAINS, + &ctrl_set_awb_gains, + false + }, + { + V4L2_CID_BLUE_BALANCE, MMAL_CONTROL_TYPE_STD, + 1, 7999, 1000, 1, NULL, + MMAL_PARAMETER_CUSTOM_AWB_GAINS, + &ctrl_set_awb_gains, + false + }, + { + V4L2_CID_COLORFX, MMAL_CONTROL_TYPE_STD_MENU, + 0, 15, V4L2_COLORFX_NONE, 0, NULL, + MMAL_PARAMETER_IMAGE_EFFECT, + &ctrl_set_image_effect, + false + }, + { + V4L2_CID_COLORFX_CBCR, MMAL_CONTROL_TYPE_STD, + 0, 0xffff, 0x8080, 1, NULL, + MMAL_PARAMETER_COLOUR_EFFECT, + &ctrl_set_colfx, + false + }, + { + V4L2_CID_ROTATE, MMAL_CONTROL_TYPE_STD, + 0, 360, 0, 90, NULL, + MMAL_PARAMETER_ROTATION, + &ctrl_set_rotate, + false + }, + { + V4L2_CID_HFLIP, MMAL_CONTROL_TYPE_STD, + 0, 1, 0, 1, NULL, + MMAL_PARAMETER_MIRROR, + &ctrl_set_flip, + false + }, + { + V4L2_CID_VFLIP, MMAL_CONTROL_TYPE_STD, + 0, 1, 0, 1, NULL, + MMAL_PARAMETER_MIRROR, + &ctrl_set_flip, + false + }, + { + V4L2_CID_MPEG_VIDEO_BITRATE_MODE, MMAL_CONTROL_TYPE_STD_MENU, + 0, ARRAY_SIZE(bitrate_mode_qmenu) - 1, + 0, 0, bitrate_mode_qmenu, + MMAL_PARAMETER_RATECONTROL, + &ctrl_set_bitrate_mode, + false + }, + { + V4L2_CID_MPEG_VIDEO_BITRATE, MMAL_CONTROL_TYPE_STD, + 25 * 1000, 25 * 1000 * 1000, 10 * 1000 * 1000, 25 * 1000, NULL, + MMAL_PARAMETER_VIDEO_BIT_RATE, + &ctrl_set_bitrate, + false + }, + { + V4L2_CID_JPEG_COMPRESSION_QUALITY, MMAL_CONTROL_TYPE_STD, + 1, 100, + 30, 1, NULL, + MMAL_PARAMETER_JPEG_Q_FACTOR, + &ctrl_set_image_encode_output, + false + }, + { + V4L2_CID_POWER_LINE_FREQUENCY, MMAL_CONTROL_TYPE_STD_MENU, + 0, ARRAY_SIZE(mains_freq_qmenu) - 1, + 1, 1, NULL, + MMAL_PARAMETER_FLICKER_AVOID, + &ctrl_set_flicker_avoidance, + false + }, + { + V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER, MMAL_CONTROL_TYPE_STD, + 0, 1, + 0, 1, NULL, + MMAL_PARAMETER_VIDEO_ENCODE_INLINE_HEADER, + &ctrl_set_video_encode_param_output, + true /* Errors ignored as requires latest firmware to work */ + }, + { + V4L2_CID_MPEG_VIDEO_H264_PROFILE, + MMAL_CONTROL_TYPE_STD_MENU, + ~((1<<V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) | + (1<<V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE) | + (1<<V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) | + (1<<V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)), + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH, 1, NULL, + MMAL_PARAMETER_PROFILE, + &ctrl_set_video_encode_profile_level, + false + }, + { + V4L2_CID_MPEG_VIDEO_H264_LEVEL, MMAL_CONTROL_TYPE_STD_MENU, + ~((1<<V4L2_MPEG_VIDEO_H264_LEVEL_1_0) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_1B) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_1_1) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_1_2) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_1_3) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_2_0) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_2_1) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_2_2) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_3_0) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_3_1) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_3_2) | + (1<<V4L2_MPEG_VIDEO_H264_LEVEL_4_0)), + V4L2_MPEG_VIDEO_H264_LEVEL_4_0, + V4L2_MPEG_VIDEO_H264_LEVEL_4_0, 1, NULL, + MMAL_PARAMETER_PROFILE, + &ctrl_set_video_encode_profile_level, + false + }, + { + V4L2_CID_SCENE_MODE, MMAL_CONTROL_TYPE_STD_MENU, + -1, /* Min is computed at runtime */ + V4L2_SCENE_MODE_TEXT, + V4L2_SCENE_MODE_NONE, 1, NULL, + MMAL_PARAMETER_PROFILE, + &ctrl_set_scene_mode, + false + }, + { + V4L2_CID_MPEG_VIDEO_H264_I_PERIOD, MMAL_CONTROL_TYPE_STD, + 0, 0x7FFFFFFF, 60, 1, NULL, + MMAL_PARAMETER_INTRAPERIOD, + &ctrl_set_video_encode_param_output, + false + }, +}; + +int bm2835_mmal_set_all_camera_controls(struct bm2835_mmal_dev *dev) +{ + int c; + int ret = 0; + + for (c = 0; c < V4L2_CTRL_COUNT; c++) { + if ((dev->ctrls[c]) && (v4l2_ctrls[c].setter)) { + ret = v4l2_ctrls[c].setter(dev, dev->ctrls[c], + &v4l2_ctrls[c]); + if (!v4l2_ctrls[c].ignore_errors && ret) { + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Failed when setting default values for ctrl %d\n", + c); + break; + } + } + } + return ret; +} + +int set_framerate_params(struct bm2835_mmal_dev *dev) +{ + struct mmal_parameter_fps_range fps_range; + int ret; + + if ((dev->exposure_mode_active != MMAL_PARAM_EXPOSUREMODE_OFF) && + (dev->exp_auto_priority)) { + /* Variable FPS. Define min FPS as 1fps. + * Max as max defined FPS. + */ + fps_range.fps_low.num = 1; + fps_range.fps_low.den = 1; + fps_range.fps_high.num = dev->capture.timeperframe.denominator; + fps_range.fps_high.den = dev->capture.timeperframe.numerator; + } else { + /* Fixed FPS - set min and max to be the same */ + fps_range.fps_low.num = fps_range.fps_high.num = + dev->capture.timeperframe.denominator; + fps_range.fps_low.den = fps_range.fps_high.den = + dev->capture.timeperframe.numerator; + } + + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Set fps range to %d/%d to %d/%d\n", + fps_range.fps_low.num, + fps_range.fps_low.den, + fps_range.fps_high.num, + fps_range.fps_high.den); + + ret = vchiq_mmal_port_parameter_set(dev->instance, + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_PREVIEW], + MMAL_PARAMETER_FPS_RANGE, + &fps_range, sizeof(fps_range)); + ret += vchiq_mmal_port_parameter_set(dev->instance, + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_VIDEO], + MMAL_PARAMETER_FPS_RANGE, + &fps_range, sizeof(fps_range)); + ret += vchiq_mmal_port_parameter_set(dev->instance, + &dev->component[MMAL_COMPONENT_CAMERA]-> + output[MMAL_CAMERA_PORT_CAPTURE], + MMAL_PARAMETER_FPS_RANGE, + &fps_range, sizeof(fps_range)); + if (ret) + v4l2_dbg(0, bcm2835_v4l2_debug, &dev->v4l2_dev, + "Failed to set fps ret %d\n", ret); + + return ret; +} + +int bm2835_mmal_init_controls(struct bm2835_mmal_dev *dev, + struct v4l2_ctrl_handler *hdl) +{ + int c; + const struct bm2835_mmal_v4l2_ctrl *ctrl; + + v4l2_ctrl_handler_init(hdl, V4L2_CTRL_COUNT); + + for (c = 0; c < V4L2_CTRL_COUNT; c++) { + ctrl = &v4l2_ctrls[c]; + + switch (ctrl->type) { + case MMAL_CONTROL_TYPE_STD: + dev->ctrls[c] = v4l2_ctrl_new_std(hdl, + &bm2835_mmal_ctrl_ops, ctrl->id, + ctrl->min, ctrl->max, ctrl->step, ctrl->def); + break; + + case MMAL_CONTROL_TYPE_STD_MENU: + { + int mask = ctrl->min; + + if (ctrl->id == V4L2_CID_SCENE_MODE) { + /* Special handling to work out the mask + * value based on the scene_configs array + * at runtime. Reduces the chance of + * mismatches. + */ + int i; + mask = 1 << V4L2_SCENE_MODE_NONE; + for (i = 0; + i < ARRAY_SIZE(scene_configs); + i++) { + mask |= 1 << scene_configs[i].v4l2_scene; + } + mask = ~mask; + } + + dev->ctrls[c] = v4l2_ctrl_new_std_menu(hdl, + &bm2835_mmal_ctrl_ops, ctrl->id, + ctrl->max, mask, ctrl->def); + break; + } + + case MMAL_CONTROL_TYPE_INT_MENU: + dev->ctrls[c] = v4l2_ctrl_new_int_menu(hdl, + &bm2835_mmal_ctrl_ops, ctrl->id, + ctrl->max, ctrl->def, ctrl->imenu); + break; + + case MMAL_CONTROL_TYPE_CLUSTER: + /* skip this entry when constructing controls */ + continue; + } + + if (hdl->error) + break; + + dev->ctrls[c]->priv = (void *)ctrl; + } + + if (hdl->error) { + pr_err("error adding control %d/%d id 0x%x\n", c, + V4L2_CTRL_COUNT, ctrl->id); + return hdl->error; + } + + for (c = 0; c < V4L2_CTRL_COUNT; c++) { + ctrl = &v4l2_ctrls[c]; + + switch (ctrl->type) { + case MMAL_CONTROL_TYPE_CLUSTER: + v4l2_ctrl_auto_cluster(ctrl->min, + &dev->ctrls[c + 1], + ctrl->max, + ctrl->def); + break; + + case MMAL_CONTROL_TYPE_STD: + case MMAL_CONTROL_TYPE_STD_MENU: + case MMAL_CONTROL_TYPE_INT_MENU: + break; + } + } + + return 0; +} diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h new file mode 100644 index 0000000..840fd13 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h @@ -0,0 +1,53 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + * + * MMAL structures + * + */ + +#define MMAL_FOURCC(a, b, c, d) ((a) | (b << 8) | (c << 16) | (d << 24)) +#define MMAL_MAGIC MMAL_FOURCC('m', 'm', 'a', 'l') + +/** Special value signalling that time is not known */ +#define MMAL_TIME_UNKNOWN (1LL<<63) + +/* mapping between v4l and mmal video modes */ +struct mmal_fmt { + char *name; + u32 fourcc; /* v4l2 format id */ + int flags; /* v4l2 flags field */ + u32 mmal; + int depth; + u32 mmal_component; /* MMAL component index to be used to encode */ + u32 ybbp; /* depth of first Y plane for planar formats */ +}; + +/* buffer for one video frame */ +struct mmal_buffer { + /* v4l buffer data -- must be first */ + struct vb2_v4l2_buffer vb; + + /* list of buffers available */ + struct list_head list; + + void *buffer; /* buffer pointer */ + unsigned long buffer_size; /* size of allocated buffer */ +}; + +/* */ +struct mmal_colourfx { + s32 enable; + u32 u; + u32 v; +}; diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h new file mode 100644 index 0000000..e71d960 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h @@ -0,0 +1,126 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ +#ifndef MMAL_ENCODINGS_H +#define MMAL_ENCODINGS_H + +#define MMAL_ENCODING_H264 MMAL_FOURCC('H', '2', '6', '4') +#define MMAL_ENCODING_H263 MMAL_FOURCC('H', '2', '6', '3') +#define MMAL_ENCODING_MP4V MMAL_FOURCC('M', 'P', '4', 'V') +#define MMAL_ENCODING_MP2V MMAL_FOURCC('M', 'P', '2', 'V') +#define MMAL_ENCODING_MP1V MMAL_FOURCC('M', 'P', '1', 'V') +#define MMAL_ENCODING_WMV3 MMAL_FOURCC('W', 'M', 'V', '3') +#define MMAL_ENCODING_WMV2 MMAL_FOURCC('W', 'M', 'V', '2') +#define MMAL_ENCODING_WMV1 MMAL_FOURCC('W', 'M', 'V', '1') +#define MMAL_ENCODING_WVC1 MMAL_FOURCC('W', 'V', 'C', '1') +#define MMAL_ENCODING_VP8 MMAL_FOURCC('V', 'P', '8', ' ') +#define MMAL_ENCODING_VP7 MMAL_FOURCC('V', 'P', '7', ' ') +#define MMAL_ENCODING_VP6 MMAL_FOURCC('V', 'P', '6', ' ') +#define MMAL_ENCODING_THEORA MMAL_FOURCC('T', 'H', 'E', 'O') +#define MMAL_ENCODING_SPARK MMAL_FOURCC('S', 'P', 'R', 'K') +#define MMAL_ENCODING_MJPEG MMAL_FOURCC('M', 'J', 'P', 'G') + +#define MMAL_ENCODING_JPEG MMAL_FOURCC('J', 'P', 'E', 'G') +#define MMAL_ENCODING_GIF MMAL_FOURCC('G', 'I', 'F', ' ') +#define MMAL_ENCODING_PNG MMAL_FOURCC('P', 'N', 'G', ' ') +#define MMAL_ENCODING_PPM MMAL_FOURCC('P', 'P', 'M', ' ') +#define MMAL_ENCODING_TGA MMAL_FOURCC('T', 'G', 'A', ' ') +#define MMAL_ENCODING_BMP MMAL_FOURCC('B', 'M', 'P', ' ') + +#define MMAL_ENCODING_I420 MMAL_FOURCC('I', '4', '2', '0') +#define MMAL_ENCODING_I420_SLICE MMAL_FOURCC('S', '4', '2', '0') +#define MMAL_ENCODING_YV12 MMAL_FOURCC('Y', 'V', '1', '2') +#define MMAL_ENCODING_I422 MMAL_FOURCC('I', '4', '2', '2') +#define MMAL_ENCODING_I422_SLICE MMAL_FOURCC('S', '4', '2', '2') +#define MMAL_ENCODING_YUYV MMAL_FOURCC('Y', 'U', 'Y', 'V') +#define MMAL_ENCODING_YVYU MMAL_FOURCC('Y', 'V', 'Y', 'U') +#define MMAL_ENCODING_UYVY MMAL_FOURCC('U', 'Y', 'V', 'Y') +#define MMAL_ENCODING_VYUY MMAL_FOURCC('V', 'Y', 'U', 'Y') +#define MMAL_ENCODING_NV12 MMAL_FOURCC('N', 'V', '1', '2') +#define MMAL_ENCODING_NV21 MMAL_FOURCC('N', 'V', '2', '1') +#define MMAL_ENCODING_ARGB MMAL_FOURCC('A', 'R', 'G', 'B') +#define MMAL_ENCODING_RGBA MMAL_FOURCC('R', 'G', 'B', 'A') +#define MMAL_ENCODING_ABGR MMAL_FOURCC('A', 'B', 'G', 'R') +#define MMAL_ENCODING_BGRA MMAL_FOURCC('B', 'G', 'R', 'A') +#define MMAL_ENCODING_RGB16 MMAL_FOURCC('R', 'G', 'B', '2') +#define MMAL_ENCODING_RGB24 MMAL_FOURCC('R', 'G', 'B', '3') +#define MMAL_ENCODING_RGB32 MMAL_FOURCC('R', 'G', 'B', '4') +#define MMAL_ENCODING_BGR16 MMAL_FOURCC('B', 'G', 'R', '2') +#define MMAL_ENCODING_BGR24 MMAL_FOURCC('B', 'G', 'R', '3') +#define MMAL_ENCODING_BGR32 MMAL_FOURCC('B', 'G', 'R', '4') + +/** SAND Video (YUVUV128) format, native format understood by VideoCore. + * This format is *not* opaque - if requested you will receive full frames + * of YUV_UV video. + */ +#define MMAL_ENCODING_YUVUV128 MMAL_FOURCC('S', 'A', 'N', 'D') + +/** VideoCore opaque image format, image handles are returned to + * the host but not the actual image data. + */ +#define MMAL_ENCODING_OPAQUE MMAL_FOURCC('O', 'P', 'Q', 'V') + +/** An EGL image handle + */ +#define MMAL_ENCODING_EGL_IMAGE MMAL_FOURCC('E', 'G', 'L', 'I') + +/* }@ */ + +/** \name Pre-defined audio encodings */ +/* @{ */ +#define MMAL_ENCODING_PCM_UNSIGNED_BE MMAL_FOURCC('P', 'C', 'M', 'U') +#define MMAL_ENCODING_PCM_UNSIGNED_LE MMAL_FOURCC('p', 'c', 'm', 'u') +#define MMAL_ENCODING_PCM_SIGNED_BE MMAL_FOURCC('P', 'C', 'M', 'S') +#define MMAL_ENCODING_PCM_SIGNED_LE MMAL_FOURCC('p', 'c', 'm', 's') +#define MMAL_ENCODING_PCM_FLOAT_BE MMAL_FOURCC('P', 'C', 'M', 'F') +#define MMAL_ENCODING_PCM_FLOAT_LE MMAL_FOURCC('p', 'c', 'm', 'f') + +/* Pre-defined H264 encoding variants */ + +/** ISO 14496-10 Annex B byte stream format */ +#define MMAL_ENCODING_VARIANT_H264_DEFAULT 0 +/** ISO 14496-15 AVC stream format */ +#define MMAL_ENCODING_VARIANT_H264_AVC1 MMAL_FOURCC('A', 'V', 'C', '1') +/** Implicitly delineated NAL units without emulation prevention */ +#define MMAL_ENCODING_VARIANT_H264_RAW MMAL_FOURCC('R', 'A', 'W', ' ') + +/** \defgroup MmalColorSpace List of pre-defined video color spaces + * This defines a list of common color spaces. This list isn't exhaustive and + * is only provided as a convenience to avoid clients having to use FourCC + * codes directly. However components are allowed to define and use their own + * FourCC codes. + */ +/* @{ */ + +/** Unknown color space */ +#define MMAL_COLOR_SPACE_UNKNOWN 0 +/** ITU-R BT.601-5 [SDTV] */ +#define MMAL_COLOR_SPACE_ITUR_BT601 MMAL_FOURCC('Y', '6', '0', '1') +/** ITU-R BT.709-3 [HDTV] */ +#define MMAL_COLOR_SPACE_ITUR_BT709 MMAL_FOURCC('Y', '7', '0', '9') +/** JPEG JFIF */ +#define MMAL_COLOR_SPACE_JPEG_JFIF MMAL_FOURCC('Y', 'J', 'F', 'I') +/** Title 47 Code of Federal Regulations (2003) 73.682 (a) (20) */ +#define MMAL_COLOR_SPACE_FCC MMAL_FOURCC('Y', 'F', 'C', 'C') +/** Society of Motion Picture and Television Engineers 240M (1999) */ +#define MMAL_COLOR_SPACE_SMPTE240M MMAL_FOURCC('Y', '2', '4', '0') +/** ITU-R BT.470-2 System M */ +#define MMAL_COLOR_SPACE_BT470_2_M MMAL_FOURCC('Y', '_', '_', 'M') +/** ITU-R BT.470-2 System BG */ +#define MMAL_COLOR_SPACE_BT470_2_BG MMAL_FOURCC('Y', '_', 'B', 'G') +/** JPEG JFIF, but with 16..255 luma */ +#define MMAL_COLOR_SPACE_JFIF_Y16_255 MMAL_FOURCC('Y', 'Y', '1', '6') +/* @} MmalColorSpace List */ + +#endif /* MMAL_ENCODINGS_H */ diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h new file mode 100644 index 0000000..66e8a6e --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h @@ -0,0 +1,50 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +#ifndef MMAL_MSG_COMMON_H +#define MMAL_MSG_COMMON_H + +enum mmal_msg_status { + MMAL_MSG_STATUS_SUCCESS = 0, /**< Success */ + MMAL_MSG_STATUS_ENOMEM, /**< Out of memory */ + MMAL_MSG_STATUS_ENOSPC, /**< Out of resources other than memory */ + MMAL_MSG_STATUS_EINVAL, /**< Argument is invalid */ + MMAL_MSG_STATUS_ENOSYS, /**< Function not implemented */ + MMAL_MSG_STATUS_ENOENT, /**< No such file or directory */ + MMAL_MSG_STATUS_ENXIO, /**< No such device or address */ + MMAL_MSG_STATUS_EIO, /**< I/O error */ + MMAL_MSG_STATUS_ESPIPE, /**< Illegal seek */ + MMAL_MSG_STATUS_ECORRUPT, /**< Data is corrupt \attention */ + MMAL_MSG_STATUS_ENOTREADY, /**< Component is not ready */ + MMAL_MSG_STATUS_ECONFIG, /**< Component is not configured */ + MMAL_MSG_STATUS_EISCONN, /**< Port is already connected */ + MMAL_MSG_STATUS_ENOTCONN, /**< Port is disconnected */ + MMAL_MSG_STATUS_EAGAIN, /**< Resource temporarily unavailable. */ + MMAL_MSG_STATUS_EFAULT, /**< Bad address */ +}; + +struct mmal_rect { + s32 x; /**< x coordinate (from left) */ + s32 y; /**< y coordinate (from top) */ + s32 width; /**< width */ + s32 height; /**< height */ +}; + +struct mmal_rational { + s32 num; /**< Numerator */ + s32 den; /**< Denominator */ +}; + +#endif /* MMAL_MSG_COMMON_H */ diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h new file mode 100644 index 0000000..24b002e --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h @@ -0,0 +1,99 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +#ifndef MMAL_MSG_FORMAT_H +#define MMAL_MSG_FORMAT_H + +#include "mmal-msg-common.h" + +/* MMAL_ES_FORMAT_T */ + +struct mmal_audio_format { + u32 channels; /**< Number of audio channels */ + u32 sample_rate; /**< Sample rate */ + + u32 bits_per_sample; /**< Bits per sample */ + u32 block_align; /**< Size of a block of data */ +}; + +struct mmal_video_format { + u32 width; /**< Width of frame in pixels */ + u32 height; /**< Height of frame in rows of pixels */ + struct mmal_rect crop; /**< Visible region of the frame */ + struct mmal_rational frame_rate; /**< Frame rate */ + struct mmal_rational par; /**< Pixel aspect ratio */ + + /* FourCC specifying the color space of the video stream. See the + * \ref MmalColorSpace "pre-defined color spaces" for some examples. + */ + u32 color_space; +}; + +struct mmal_subpicture_format { + u32 x_offset; + u32 y_offset; +}; + +union mmal_es_specific_format { + struct mmal_audio_format audio; + struct mmal_video_format video; + struct mmal_subpicture_format subpicture; +}; + +/** Definition of an elementary stream format (MMAL_ES_FORMAT_T) */ +struct mmal_es_format_local { + u32 type; /* enum mmal_es_type */ + + u32 encoding; /* FourCC specifying encoding of the elementary stream.*/ + u32 encoding_variant; /* FourCC specifying the specific + * encoding variant of the elementary + * stream. + */ + + union mmal_es_specific_format *es; /* Type specific + * information for the + * elementary stream + */ + + u32 bitrate; /**< Bitrate in bits per second */ + u32 flags; /**< Flags describing properties of the elementary stream. */ + + u32 extradata_size; /**< Size of the codec specific data */ + u8 *extradata; /**< Codec specific data */ +}; + +/** Remote definition of an elementary stream format (MMAL_ES_FORMAT_T) */ +struct mmal_es_format { + u32 type; /* enum mmal_es_type */ + + u32 encoding; /* FourCC specifying encoding of the elementary stream.*/ + u32 encoding_variant; /* FourCC specifying the specific + * encoding variant of the elementary + * stream. + */ + + u32 es; /* Type specific + * information for the + * elementary stream + */ + + u32 bitrate; /**< Bitrate in bits per second */ + u32 flags; /**< Flags describing properties of the elementary stream. */ + + u32 extradata_size; /**< Size of the codec specific data */ + u32 extradata; /**< Codec specific data */ +}; + +#endif /* MMAL_MSG_FORMAT_H */ diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h new file mode 100644 index 0000000..84a0f4b --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h @@ -0,0 +1,109 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +/* MMAL_PORT_TYPE_T */ +enum mmal_port_type { + MMAL_PORT_TYPE_UNKNOWN = 0, /**< Unknown port type */ + MMAL_PORT_TYPE_CONTROL, /**< Control port */ + MMAL_PORT_TYPE_INPUT, /**< Input port */ + MMAL_PORT_TYPE_OUTPUT, /**< Output port */ + MMAL_PORT_TYPE_CLOCK, /**< Clock port */ +}; + +/** The port is pass-through and doesn't need buffer headers allocated */ +#define MMAL_PORT_CAPABILITY_PASSTHROUGH 0x01 +/** The port wants to allocate the buffer payloads. + * This signals a preference that payload allocation should be done + * on this port for efficiency reasons. + */ +#define MMAL_PORT_CAPABILITY_ALLOCATION 0x02 +/** The port supports format change events. + * This applies to input ports and is used to let the client know + * whether the port supports being reconfigured via a format + * change event (i.e. without having to disable the port). + */ +#define MMAL_PORT_CAPABILITY_SUPPORTS_EVENT_FORMAT_CHANGE 0x04 + +/* mmal port structure (MMAL_PORT_T) + * + * most elements are informational only, the pointer values for + * interogation messages are generally provided as additional + * strucures within the message. When used to set values only teh + * buffer_num, buffer_size and userdata parameters are writable. + */ +struct mmal_port { + u32 priv; /* Private member used by the framework */ + u32 name; /* Port name. Used for debugging purposes (RO) */ + + u32 type; /* Type of the port (RO) enum mmal_port_type */ + u16 index; /* Index of the port in its type list (RO) */ + u16 index_all; /* Index of the port in the list of all ports (RO) */ + + u32 is_enabled; /* Indicates whether the port is enabled or not (RO) */ + u32 format; /* Format of the elementary stream */ + + u32 buffer_num_min; /* Minimum number of buffers the port + * requires (RO). This is set by the + * component. + */ + + u32 buffer_size_min; /* Minimum size of buffers the port + * requires (RO). This is set by the + * component. + */ + + u32 buffer_alignment_min; /* Minimum alignment requirement for + * the buffers (RO). A value of + * zero means no special alignment + * requirements. This is set by the + * component. + */ + + u32 buffer_num_recommended; /* Number of buffers the port + * recommends for optimal + * performance (RO). A value of + * zero means no special + * recommendation. This is set + * by the component. + */ + + u32 buffer_size_recommended; /* Size of buffers the port + * recommends for optimal + * performance (RO). A value of + * zero means no special + * recommendation. This is set + * by the component. + */ + + u32 buffer_num; /* Actual number of buffers the port will use. + * This is set by the client. + */ + + u32 buffer_size; /* Actual maximum size of the buffers that + * will be sent to the port. This is set by + * the client. + */ + + u32 component; /* Component this port belongs to (Read Only) */ + + u32 userdata; /* Field reserved for use by the client */ + + u32 capabilities; /* Flags describing the capabilities of a + * port (RO). Bitwise combination of \ref + * portcapabilities "Port capabilities" + * values. + */ + +}; diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h new file mode 100644 index 0000000..52cdf4d --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h @@ -0,0 +1,399 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +/* all the data structures which serialise the MMAL protocol. note + * these are directly mapped onto the recived message data. + * + * BEWARE: They seem to *assume* pointers are u32 and that there is no + * structure padding! + * + * NOTE: this implementation uses kernel types to ensure sizes. Rather + * than assigning values to enums to force their size the + * implementation uses fixed size types and not the enums (though the + * comments have the actual enum type + */ + +#define VC_MMAL_VER 15 +#define VC_MMAL_MIN_VER 10 +#define VC_MMAL_SERVER_NAME MAKE_FOURCC("mmal") + +/* max total message size is 512 bytes */ +#define MMAL_MSG_MAX_SIZE 512 +/* with six 32bit header elements max payload is therefore 488 bytes */ +#define MMAL_MSG_MAX_PAYLOAD 488 + +#include "mmal-msg-common.h" +#include "mmal-msg-format.h" +#include "mmal-msg-port.h" + +enum mmal_msg_type { + MMAL_MSG_TYPE_QUIT = 1, + MMAL_MSG_TYPE_SERVICE_CLOSED, + MMAL_MSG_TYPE_GET_VERSION, + MMAL_MSG_TYPE_COMPONENT_CREATE, + MMAL_MSG_TYPE_COMPONENT_DESTROY, /* 5 */ + MMAL_MSG_TYPE_COMPONENT_ENABLE, + MMAL_MSG_TYPE_COMPONENT_DISABLE, + MMAL_MSG_TYPE_PORT_INFO_GET, + MMAL_MSG_TYPE_PORT_INFO_SET, + MMAL_MSG_TYPE_PORT_ACTION, /* 10 */ + MMAL_MSG_TYPE_BUFFER_FROM_HOST, + MMAL_MSG_TYPE_BUFFER_TO_HOST, + MMAL_MSG_TYPE_GET_STATS, + MMAL_MSG_TYPE_PORT_PARAMETER_SET, + MMAL_MSG_TYPE_PORT_PARAMETER_GET, /* 15 */ + MMAL_MSG_TYPE_EVENT_TO_HOST, + MMAL_MSG_TYPE_GET_CORE_STATS_FOR_PORT, + MMAL_MSG_TYPE_OPAQUE_ALLOCATOR, + MMAL_MSG_TYPE_CONSUME_MEM, + MMAL_MSG_TYPE_LMK, /* 20 */ + MMAL_MSG_TYPE_OPAQUE_ALLOCATOR_DESC, + MMAL_MSG_TYPE_DRM_GET_LHS32, + MMAL_MSG_TYPE_DRM_GET_TIME, + MMAL_MSG_TYPE_BUFFER_FROM_HOST_ZEROLEN, + MMAL_MSG_TYPE_PORT_FLUSH, /* 25 */ + MMAL_MSG_TYPE_HOST_LOG, + MMAL_MSG_TYPE_MSG_LAST +}; + +/* port action request messages differ depending on the action type */ +enum mmal_msg_port_action_type { + MMAL_MSG_PORT_ACTION_TYPE_UNKNOWN = 0, /* Unkown action */ + MMAL_MSG_PORT_ACTION_TYPE_ENABLE, /* Enable a port */ + MMAL_MSG_PORT_ACTION_TYPE_DISABLE, /* Disable a port */ + MMAL_MSG_PORT_ACTION_TYPE_FLUSH, /* Flush a port */ + MMAL_MSG_PORT_ACTION_TYPE_CONNECT, /* Connect ports */ + MMAL_MSG_PORT_ACTION_TYPE_DISCONNECT, /* Disconnect ports */ + MMAL_MSG_PORT_ACTION_TYPE_SET_REQUIREMENTS, /* Set buffer requirements*/ +}; + +struct mmal_msg_header { + u32 magic; + u32 type; /** enum mmal_msg_type */ + + /* Opaque handle to the control service */ + u32 control_service; + + u32 context; /** a u32 per message context */ + u32 status; /** The status of the vchiq operation */ + u32 padding; +}; + +/* Send from VC to host to report version */ +struct mmal_msg_version { + u32 flags; + u32 major; + u32 minor; + u32 minimum; +}; + +/* request to VC to create component */ +struct mmal_msg_component_create { + u32 client_component; /* component context */ + char name[128]; + u32 pid; /* For debug */ +}; + +/* reply from VC to component creation request */ +struct mmal_msg_component_create_reply { + u32 status; /* enum mmal_msg_status - how does this differ to + * the one in the header? + */ + u32 component_handle; /* VideoCore handle for component */ + u32 input_num; /* Number of input ports */ + u32 output_num; /* Number of output ports */ + u32 clock_num; /* Number of clock ports */ +}; + +/* request to VC to destroy a component */ +struct mmal_msg_component_destroy { + u32 component_handle; +}; + +struct mmal_msg_component_destroy_reply { + u32 status; /** The component destruction status */ +}; + +/* request and reply to VC to enable a component */ +struct mmal_msg_component_enable { + u32 component_handle; +}; + +struct mmal_msg_component_enable_reply { + u32 status; /** The component enable status */ +}; + +/* request and reply to VC to disable a component */ +struct mmal_msg_component_disable { + u32 component_handle; +}; + +struct mmal_msg_component_disable_reply { + u32 status; /** The component disable status */ +}; + +/* request to VC to get port information */ +struct mmal_msg_port_info_get { + u32 component_handle; /* component handle port is associated with */ + u32 port_type; /* enum mmal_msg_port_type */ + u32 index; /* port index to query */ +}; + +/* reply from VC to get port info request */ +struct mmal_msg_port_info_get_reply { + u32 status; /** enum mmal_msg_status */ + u32 component_handle; /* component handle port is associated with */ + u32 port_type; /* enum mmal_msg_port_type */ + u32 port_index; /* port indexed in query */ + s32 found; /* unused */ + u32 port_handle; /**< Handle to use for this port */ + struct mmal_port port; + struct mmal_es_format format; /* elementary stream format */ + union mmal_es_specific_format es; /* es type specific data */ + u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE]; /* es extra data */ +}; + +/* request to VC to set port information */ +struct mmal_msg_port_info_set { + u32 component_handle; + u32 port_type; /* enum mmal_msg_port_type */ + u32 port_index; /* port indexed in query */ + struct mmal_port port; + struct mmal_es_format format; + union mmal_es_specific_format es; + u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE]; +}; + +/* reply from VC to port info set request */ +struct mmal_msg_port_info_set_reply { + u32 status; + u32 component_handle; /* component handle port is associated with */ + u32 port_type; /* enum mmal_msg_port_type */ + u32 index; /* port indexed in query */ + s32 found; /* unused */ + u32 port_handle; /**< Handle to use for this port */ + struct mmal_port port; + struct mmal_es_format format; + union mmal_es_specific_format es; + u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE]; +}; + +/* port action requests that take a mmal_port as a parameter */ +struct mmal_msg_port_action_port { + u32 component_handle; + u32 port_handle; + u32 action; /* enum mmal_msg_port_action_type */ + struct mmal_port port; +}; + +/* port action requests that take handles as a parameter */ +struct mmal_msg_port_action_handle { + u32 component_handle; + u32 port_handle; + u32 action; /* enum mmal_msg_port_action_type */ + u32 connect_component_handle; + u32 connect_port_handle; +}; + +struct mmal_msg_port_action_reply { + u32 status; /** The port action operation status */ +}; + +/* MMAL buffer transfer */ + +/** Size of space reserved in a buffer message for short messages. */ +#define MMAL_VC_SHORT_DATA 128 + +/** Signals that the current payload is the end of the stream of data */ +#define MMAL_BUFFER_HEADER_FLAG_EOS (1<<0) +/** Signals that the start of the current payload starts a frame */ +#define MMAL_BUFFER_HEADER_FLAG_FRAME_START (1<<1) +/** Signals that the end of the current payload ends a frame */ +#define MMAL_BUFFER_HEADER_FLAG_FRAME_END (1<<2) +/** Signals that the current payload contains only complete frames (>1) */ +#define MMAL_BUFFER_HEADER_FLAG_FRAME \ + (MMAL_BUFFER_HEADER_FLAG_FRAME_START|MMAL_BUFFER_HEADER_FLAG_FRAME_END) +/** Signals that the current payload is a keyframe (i.e. self decodable) */ +#define MMAL_BUFFER_HEADER_FLAG_KEYFRAME (1<<3) +/** Signals a discontinuity in the stream of data (e.g. after a seek). + * Can be used for instance by a decoder to reset its state + */ +#define MMAL_BUFFER_HEADER_FLAG_DISCONTINUITY (1<<4) +/** Signals a buffer containing some kind of config data for the component + * (e.g. codec config data) + */ +#define MMAL_BUFFER_HEADER_FLAG_CONFIG (1<<5) +/** Signals an encrypted payload */ +#define MMAL_BUFFER_HEADER_FLAG_ENCRYPTED (1<<6) +/** Signals a buffer containing side information */ +#define MMAL_BUFFER_HEADER_FLAG_CODECSIDEINFO (1<<7) +/** Signals a buffer which is the snapshot/postview image from a stills + * capture + */ +#define MMAL_BUFFER_HEADER_FLAGS_SNAPSHOT (1<<8) +/** Signals a buffer which contains data known to be corrupted */ +#define MMAL_BUFFER_HEADER_FLAG_CORRUPTED (1<<9) +/** Signals that a buffer failed to be transmitted */ +#define MMAL_BUFFER_HEADER_FLAG_TRANSMISSION_FAILED (1<<10) + +struct mmal_driver_buffer { + u32 magic; + u32 component_handle; + u32 port_handle; + u32 client_context; +}; + +/* buffer header */ +struct mmal_buffer_header { + u32 next; /* next header */ + u32 priv; /* framework private data */ + u32 cmd; + u32 data; + u32 alloc_size; + u32 length; + u32 offset; + u32 flags; + s64 pts; + s64 dts; + u32 type; + u32 user_data; +}; + +struct mmal_buffer_header_type_specific { + union { + struct { + u32 planes; + u32 offset[4]; + u32 pitch[4]; + u32 flags; + } video; + } u; +}; + +struct mmal_msg_buffer_from_host { + /* The front 32 bytes of the buffer header are copied + * back to us in the reply to allow for context. This + * area is used to store two mmal_driver_buffer structures to + * allow for multiple concurrent service users. + */ + /* control data */ + struct mmal_driver_buffer drvbuf; + + /* referenced control data for passthrough buffer management */ + struct mmal_driver_buffer drvbuf_ref; + struct mmal_buffer_header buffer_header; /* buffer header itself */ + struct mmal_buffer_header_type_specific buffer_header_type_specific; + s32 is_zero_copy; + s32 has_reference; + + /** allows short data to be xfered in control message */ + u32 payload_in_message; + u8 short_data[MMAL_VC_SHORT_DATA]; +}; + +/* port parameter setting */ + +#define MMAL_WORKER_PORT_PARAMETER_SPACE 96 + +struct mmal_msg_port_parameter_set { + u32 component_handle; /* component */ + u32 port_handle; /* port */ + u32 id; /* Parameter ID */ + u32 size; /* Parameter size */ + uint32_t value[MMAL_WORKER_PORT_PARAMETER_SPACE]; +}; + +struct mmal_msg_port_parameter_set_reply { + u32 status; /* enum mmal_msg_status todo: how does this + * differ to the one in the header? + */ +}; + +/* port parameter getting */ + +struct mmal_msg_port_parameter_get { + u32 component_handle; /* component */ + u32 port_handle; /* port */ + u32 id; /* Parameter ID */ + u32 size; /* Parameter size */ +}; + +struct mmal_msg_port_parameter_get_reply { + u32 status; /* Status of mmal_port_parameter_get call */ + u32 id; /* Parameter ID */ + u32 size; /* Parameter size */ + uint32_t value[MMAL_WORKER_PORT_PARAMETER_SPACE]; +}; + +/* event messages */ +#define MMAL_WORKER_EVENT_SPACE 256 + +struct mmal_msg_event_to_host { + u32 client_component; /* component context */ + + u32 port_type; + u32 port_num; + + u32 cmd; + u32 length; + u8 data[MMAL_WORKER_EVENT_SPACE]; + u32 delayed_buffer; +}; + +/* all mmal messages are serialised through this structure */ +struct mmal_msg { + /* header */ + struct mmal_msg_header h; + /* payload */ + union { + struct mmal_msg_version version; + + struct mmal_msg_component_create component_create; + struct mmal_msg_component_create_reply component_create_reply; + + struct mmal_msg_component_destroy component_destroy; + struct mmal_msg_component_destroy_reply component_destroy_reply; + + struct mmal_msg_component_enable component_enable; + struct mmal_msg_component_enable_reply component_enable_reply; + + struct mmal_msg_component_disable component_disable; + struct mmal_msg_component_disable_reply component_disable_reply; + + struct mmal_msg_port_info_get port_info_get; + struct mmal_msg_port_info_get_reply port_info_get_reply; + + struct mmal_msg_port_info_set port_info_set; + struct mmal_msg_port_info_set_reply port_info_set_reply; + + struct mmal_msg_port_action_port port_action_port; + struct mmal_msg_port_action_handle port_action_handle; + struct mmal_msg_port_action_reply port_action_reply; + + struct mmal_msg_buffer_from_host buffer_from_host; + + struct mmal_msg_port_parameter_set port_parameter_set; + struct mmal_msg_port_parameter_set_reply + port_parameter_set_reply; + struct mmal_msg_port_parameter_get + port_parameter_get; + struct mmal_msg_port_parameter_get_reply + port_parameter_get_reply; + + struct mmal_msg_event_to_host event_to_host; + + u8 payload[MMAL_MSG_MAX_PAYLOAD]; + } u; +}; diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h new file mode 100644 index 0000000..e730022 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h @@ -0,0 +1,687 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + */ + +/* common parameters */ + +/** @name Parameter groups + * Parameters are divided into groups, and then allocated sequentially within + * a group using an enum. + * @{ + */ + +/** Common parameter ID group, used with many types of component. */ +#define MMAL_PARAMETER_GROUP_COMMON (0<<16) +/** Camera-specific parameter ID group. */ +#define MMAL_PARAMETER_GROUP_CAMERA (1<<16) +/** Video-specific parameter ID group. */ +#define MMAL_PARAMETER_GROUP_VIDEO (2<<16) +/** Audio-specific parameter ID group. */ +#define MMAL_PARAMETER_GROUP_AUDIO (3<<16) +/** Clock-specific parameter ID group. */ +#define MMAL_PARAMETER_GROUP_CLOCK (4<<16) +/** Miracast-specific parameter ID group. */ +#define MMAL_PARAMETER_GROUP_MIRACAST (5<<16) + +/* Common parameters */ +enum mmal_parameter_common_type { + MMAL_PARAMETER_UNUSED /**< Never a valid parameter ID */ + = MMAL_PARAMETER_GROUP_COMMON, + MMAL_PARAMETER_SUPPORTED_ENCODINGS, /**< MMAL_PARAMETER_ENCODING_T */ + MMAL_PARAMETER_URI, /**< MMAL_PARAMETER_URI_T */ + + /** MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T */ + MMAL_PARAMETER_CHANGE_EVENT_REQUEST, + + /** MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_ZERO_COPY, + + /**< MMAL_PARAMETER_BUFFER_REQUIREMENTS_T */ + MMAL_PARAMETER_BUFFER_REQUIREMENTS, + + MMAL_PARAMETER_STATISTICS, /**< MMAL_PARAMETER_STATISTICS_T */ + MMAL_PARAMETER_CORE_STATISTICS, /**< MMAL_PARAMETER_CORE_STATISTICS_T */ + MMAL_PARAMETER_MEM_USAGE, /**< MMAL_PARAMETER_MEM_USAGE_T */ + MMAL_PARAMETER_BUFFER_FLAG_FILTER, /**< MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_SEEK, /**< MMAL_PARAMETER_SEEK_T */ + MMAL_PARAMETER_POWERMON_ENABLE, /**< MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_LOGGING, /**< MMAL_PARAMETER_LOGGING_T */ + MMAL_PARAMETER_SYSTEM_TIME, /**< MMAL_PARAMETER_UINT64_T */ + MMAL_PARAMETER_NO_IMAGE_PADDING /**< MMAL_PARAMETER_BOOLEAN_T */ +}; + +/* camera parameters */ + +enum mmal_parameter_camera_type { + /* 0 */ + /** @ref MMAL_PARAMETER_THUMBNAIL_CONFIG_T */ + MMAL_PARAMETER_THUMBNAIL_CONFIGURATION + = MMAL_PARAMETER_GROUP_CAMERA, + MMAL_PARAMETER_CAPTURE_QUALITY, /**< Unused? */ + MMAL_PARAMETER_ROTATION, /**< @ref MMAL_PARAMETER_INT32_T */ + MMAL_PARAMETER_EXIF_DISABLE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_EXIF, /**< @ref MMAL_PARAMETER_EXIF_T */ + MMAL_PARAMETER_AWB_MODE, /**< @ref MMAL_PARAM_AWBMODE_T */ + MMAL_PARAMETER_IMAGE_EFFECT, /**< @ref MMAL_PARAMETER_IMAGEFX_T */ + MMAL_PARAMETER_COLOUR_EFFECT, /**< @ref MMAL_PARAMETER_COLOURFX_T */ + MMAL_PARAMETER_FLICKER_AVOID, /**< @ref MMAL_PARAMETER_FLICKERAVOID_T */ + MMAL_PARAMETER_FLASH, /**< @ref MMAL_PARAMETER_FLASH_T */ + MMAL_PARAMETER_REDEYE, /**< @ref MMAL_PARAMETER_REDEYE_T */ + MMAL_PARAMETER_FOCUS, /**< @ref MMAL_PARAMETER_FOCUS_T */ + MMAL_PARAMETER_FOCAL_LENGTHS, /**< Unused? */ + MMAL_PARAMETER_EXPOSURE_COMP, /**< @ref MMAL_PARAMETER_INT32_T */ + MMAL_PARAMETER_ZOOM, /**< @ref MMAL_PARAMETER_SCALEFACTOR_T */ + MMAL_PARAMETER_MIRROR, /**< @ref MMAL_PARAMETER_MIRROR_T */ + + /* 0x10 */ + MMAL_PARAMETER_CAMERA_NUM, /**< @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_CAPTURE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_EXPOSURE_MODE, /**< @ref MMAL_PARAMETER_EXPOSUREMODE_T */ + MMAL_PARAMETER_EXP_METERING_MODE, /**< @ref MMAL_PARAMETER_EXPOSUREMETERINGMODE_T */ + MMAL_PARAMETER_FOCUS_STATUS, /**< @ref MMAL_PARAMETER_FOCUS_STATUS_T */ + MMAL_PARAMETER_CAMERA_CONFIG, /**< @ref MMAL_PARAMETER_CAMERA_CONFIG_T */ + MMAL_PARAMETER_CAPTURE_STATUS, /**< @ref MMAL_PARAMETER_CAPTURE_STATUS_T */ + MMAL_PARAMETER_FACE_TRACK, /**< @ref MMAL_PARAMETER_FACE_TRACK_T */ + MMAL_PARAMETER_DRAW_BOX_FACES_AND_FOCUS, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_JPEG_Q_FACTOR, /**< @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_FRAME_RATE, /**< @ref MMAL_PARAMETER_FRAME_RATE_T */ + MMAL_PARAMETER_USE_STC, /**< @ref MMAL_PARAMETER_CAMERA_STC_MODE_T */ + MMAL_PARAMETER_CAMERA_INFO, /**< @ref MMAL_PARAMETER_CAMERA_INFO_T */ + MMAL_PARAMETER_VIDEO_STABILISATION, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_FACE_TRACK_RESULTS, /**< @ref MMAL_PARAMETER_FACE_TRACK_RESULTS_T */ + MMAL_PARAMETER_ENABLE_RAW_CAPTURE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + + /* 0x20 */ + MMAL_PARAMETER_DPF_FILE, /**< @ref MMAL_PARAMETER_URI_T */ + MMAL_PARAMETER_ENABLE_DPF_FILE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_DPF_FAIL_IS_FATAL, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_CAPTURE_MODE, /**< @ref MMAL_PARAMETER_CAPTUREMODE_T */ + MMAL_PARAMETER_FOCUS_REGIONS, /**< @ref MMAL_PARAMETER_FOCUS_REGIONS_T */ + MMAL_PARAMETER_INPUT_CROP, /**< @ref MMAL_PARAMETER_INPUT_CROP_T */ + MMAL_PARAMETER_SENSOR_INFORMATION, /**< @ref MMAL_PARAMETER_SENSOR_INFORMATION_T */ + MMAL_PARAMETER_FLASH_SELECT, /**< @ref MMAL_PARAMETER_FLASH_SELECT_T */ + MMAL_PARAMETER_FIELD_OF_VIEW, /**< @ref MMAL_PARAMETER_FIELD_OF_VIEW_T */ + MMAL_PARAMETER_HIGH_DYNAMIC_RANGE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_DYNAMIC_RANGE_COMPRESSION, /**< @ref MMAL_PARAMETER_DRC_T */ + MMAL_PARAMETER_ALGORITHM_CONTROL, /**< @ref MMAL_PARAMETER_ALGORITHM_CONTROL_T */ + MMAL_PARAMETER_SHARPNESS, /**< @ref MMAL_PARAMETER_RATIONAL_T */ + MMAL_PARAMETER_CONTRAST, /**< @ref MMAL_PARAMETER_RATIONAL_T */ + MMAL_PARAMETER_BRIGHTNESS, /**< @ref MMAL_PARAMETER_RATIONAL_T */ + MMAL_PARAMETER_SATURATION, /**< @ref MMAL_PARAMETER_RATIONAL_T */ + + /* 0x30 */ + MMAL_PARAMETER_ISO, /**< @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_ANTISHAKE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + + /** @ref MMAL_PARAMETER_IMAGEFX_PARAMETERS_T */ + MMAL_PARAMETER_IMAGE_EFFECT_PARAMETERS, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_CAMERA_BURST_CAPTURE, + + /** @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_CAMERA_MIN_ISO, + + /** @ref MMAL_PARAMETER_CAMERA_USE_CASE_T */ + MMAL_PARAMETER_CAMERA_USE_CASE, + + /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_CAPTURE_STATS_PASS, + + /** @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_CAMERA_CUSTOM_SENSOR_CONFIG, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_ENABLE_REGISTER_FILE, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_REGISTER_FAIL_IS_FATAL, + + /** @ref MMAL_PARAMETER_CONFIGFILE_T */ + MMAL_PARAMETER_CONFIGFILE_REGISTERS, + + /** @ref MMAL_PARAMETER_CONFIGFILE_CHUNK_T */ + MMAL_PARAMETER_CONFIGFILE_CHUNK_REGISTERS, + MMAL_PARAMETER_JPEG_ATTACH_LOG, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_ZERO_SHUTTER_LAG, /**< @ref MMAL_PARAMETER_ZEROSHUTTERLAG_T */ + MMAL_PARAMETER_FPS_RANGE, /**< @ref MMAL_PARAMETER_FPS_RANGE_T */ + MMAL_PARAMETER_CAPTURE_EXPOSURE_COMP, /**< @ref MMAL_PARAMETER_INT32_T */ + + /* 0x40 */ + MMAL_PARAMETER_SW_SHARPEN_DISABLE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_FLASH_REQUIRED, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_SW_SATURATION_DISABLE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_SHUTTER_SPEED, /**< Takes a @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_CUSTOM_AWB_GAINS, /**< Takes a @ref MMAL_PARAMETER_AWB_GAINS_T */ +}; + +struct mmal_parameter_rational { + s32 num; /**< Numerator */ + s32 den; /**< Denominator */ +}; + +enum mmal_parameter_camera_config_timestamp_mode { + MMAL_PARAM_TIMESTAMP_MODE_ZERO = 0, /* Always timestamp frames as 0 */ + MMAL_PARAM_TIMESTAMP_MODE_RAW_STC, /* Use the raw STC value + * for the frame timestamp + */ + MMAL_PARAM_TIMESTAMP_MODE_RESET_STC, /* Use the STC timestamp + * but subtract the + * timestamp of the first + * frame sent to give a + * zero based timestamp. + */ +}; + +struct mmal_parameter_fps_range { + /**< Low end of the permitted framerate range */ + struct mmal_parameter_rational fps_low; + /**< High end of the permitted framerate range */ + struct mmal_parameter_rational fps_high; +}; + +/* camera configuration parameter */ +struct mmal_parameter_camera_config { + /* Parameters for setting up the image pools */ + u32 max_stills_w; /* Max size of stills capture */ + u32 max_stills_h; + u32 stills_yuv422; /* Allow YUV422 stills capture */ + u32 one_shot_stills; /* Continuous or one shot stills captures. */ + + u32 max_preview_video_w; /* Max size of the preview or video + * capture frames + */ + u32 max_preview_video_h; + u32 num_preview_video_frames; + + /** Sets the height of the circular buffer for stills capture. */ + u32 stills_capture_circular_buffer_height; + + /** Allows preview/encode to resume as fast as possible after the stills + * input frame has been received, and then processes the still frame in + * the background whilst preview/encode has resumed. + * Actual mode is controlled by MMAL_PARAMETER_CAPTURE_MODE. + */ + u32 fast_preview_resume; + + /** Selects algorithm for timestamping frames if + * there is no clock component connected. + * enum mmal_parameter_camera_config_timestamp_mode + */ + s32 use_stc_timestamp; +}; + +enum mmal_parameter_exposuremode { + MMAL_PARAM_EXPOSUREMODE_OFF, + MMAL_PARAM_EXPOSUREMODE_AUTO, + MMAL_PARAM_EXPOSUREMODE_NIGHT, + MMAL_PARAM_EXPOSUREMODE_NIGHTPREVIEW, + MMAL_PARAM_EXPOSUREMODE_BACKLIGHT, + MMAL_PARAM_EXPOSUREMODE_SPOTLIGHT, + MMAL_PARAM_EXPOSUREMODE_SPORTS, + MMAL_PARAM_EXPOSUREMODE_SNOW, + MMAL_PARAM_EXPOSUREMODE_BEACH, + MMAL_PARAM_EXPOSUREMODE_VERYLONG, + MMAL_PARAM_EXPOSUREMODE_FIXEDFPS, + MMAL_PARAM_EXPOSUREMODE_ANTISHAKE, + MMAL_PARAM_EXPOSUREMODE_FIREWORKS, +}; + +enum mmal_parameter_exposuremeteringmode { + MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE, + MMAL_PARAM_EXPOSUREMETERINGMODE_SPOT, + MMAL_PARAM_EXPOSUREMETERINGMODE_BACKLIT, + MMAL_PARAM_EXPOSUREMETERINGMODE_MATRIX, +}; + +enum mmal_parameter_awbmode { + MMAL_PARAM_AWBMODE_OFF, + MMAL_PARAM_AWBMODE_AUTO, + MMAL_PARAM_AWBMODE_SUNLIGHT, + MMAL_PARAM_AWBMODE_CLOUDY, + MMAL_PARAM_AWBMODE_SHADE, + MMAL_PARAM_AWBMODE_TUNGSTEN, + MMAL_PARAM_AWBMODE_FLUORESCENT, + MMAL_PARAM_AWBMODE_INCANDESCENT, + MMAL_PARAM_AWBMODE_FLASH, + MMAL_PARAM_AWBMODE_HORIZON, +}; + +enum mmal_parameter_imagefx { + MMAL_PARAM_IMAGEFX_NONE, + MMAL_PARAM_IMAGEFX_NEGATIVE, + MMAL_PARAM_IMAGEFX_SOLARIZE, + MMAL_PARAM_IMAGEFX_POSTERIZE, + MMAL_PARAM_IMAGEFX_WHITEBOARD, + MMAL_PARAM_IMAGEFX_BLACKBOARD, + MMAL_PARAM_IMAGEFX_SKETCH, + MMAL_PARAM_IMAGEFX_DENOISE, + MMAL_PARAM_IMAGEFX_EMBOSS, + MMAL_PARAM_IMAGEFX_OILPAINT, + MMAL_PARAM_IMAGEFX_HATCH, + MMAL_PARAM_IMAGEFX_GPEN, + MMAL_PARAM_IMAGEFX_PASTEL, + MMAL_PARAM_IMAGEFX_WATERCOLOUR, + MMAL_PARAM_IMAGEFX_FILM, + MMAL_PARAM_IMAGEFX_BLUR, + MMAL_PARAM_IMAGEFX_SATURATION, + MMAL_PARAM_IMAGEFX_COLOURSWAP, + MMAL_PARAM_IMAGEFX_WASHEDOUT, + MMAL_PARAM_IMAGEFX_POSTERISE, + MMAL_PARAM_IMAGEFX_COLOURPOINT, + MMAL_PARAM_IMAGEFX_COLOURBALANCE, + MMAL_PARAM_IMAGEFX_CARTOON, +}; + +enum MMAL_PARAM_FLICKERAVOID_T { + MMAL_PARAM_FLICKERAVOID_OFF, + MMAL_PARAM_FLICKERAVOID_AUTO, + MMAL_PARAM_FLICKERAVOID_50HZ, + MMAL_PARAM_FLICKERAVOID_60HZ, + MMAL_PARAM_FLICKERAVOID_MAX = 0x7FFFFFFF +}; + +struct mmal_parameter_awbgains { + struct mmal_parameter_rational r_gain; /**< Red gain */ + struct mmal_parameter_rational b_gain; /**< Blue gain */ +}; + +/** Manner of video rate control */ +enum mmal_parameter_rate_control_mode { + MMAL_VIDEO_RATECONTROL_DEFAULT, + MMAL_VIDEO_RATECONTROL_VARIABLE, + MMAL_VIDEO_RATECONTROL_CONSTANT, + MMAL_VIDEO_RATECONTROL_VARIABLE_SKIP_FRAMES, + MMAL_VIDEO_RATECONTROL_CONSTANT_SKIP_FRAMES +}; + +enum mmal_video_profile { + MMAL_VIDEO_PROFILE_H263_BASELINE, + MMAL_VIDEO_PROFILE_H263_H320CODING, + MMAL_VIDEO_PROFILE_H263_BACKWARDCOMPATIBLE, + MMAL_VIDEO_PROFILE_H263_ISWV2, + MMAL_VIDEO_PROFILE_H263_ISWV3, + MMAL_VIDEO_PROFILE_H263_HIGHCOMPRESSION, + MMAL_VIDEO_PROFILE_H263_INTERNET, + MMAL_VIDEO_PROFILE_H263_INTERLACE, + MMAL_VIDEO_PROFILE_H263_HIGHLATENCY, + MMAL_VIDEO_PROFILE_MP4V_SIMPLE, + MMAL_VIDEO_PROFILE_MP4V_SIMPLESCALABLE, + MMAL_VIDEO_PROFILE_MP4V_CORE, + MMAL_VIDEO_PROFILE_MP4V_MAIN, + MMAL_VIDEO_PROFILE_MP4V_NBIT, + MMAL_VIDEO_PROFILE_MP4V_SCALABLETEXTURE, + MMAL_VIDEO_PROFILE_MP4V_SIMPLEFACE, + MMAL_VIDEO_PROFILE_MP4V_SIMPLEFBA, + MMAL_VIDEO_PROFILE_MP4V_BASICANIMATED, + MMAL_VIDEO_PROFILE_MP4V_HYBRID, + MMAL_VIDEO_PROFILE_MP4V_ADVANCEDREALTIME, + MMAL_VIDEO_PROFILE_MP4V_CORESCALABLE, + MMAL_VIDEO_PROFILE_MP4V_ADVANCEDCODING, + MMAL_VIDEO_PROFILE_MP4V_ADVANCEDCORE, + MMAL_VIDEO_PROFILE_MP4V_ADVANCEDSCALABLE, + MMAL_VIDEO_PROFILE_MP4V_ADVANCEDSIMPLE, + MMAL_VIDEO_PROFILE_H264_BASELINE, + MMAL_VIDEO_PROFILE_H264_MAIN, + MMAL_VIDEO_PROFILE_H264_EXTENDED, + MMAL_VIDEO_PROFILE_H264_HIGH, + MMAL_VIDEO_PROFILE_H264_HIGH10, + MMAL_VIDEO_PROFILE_H264_HIGH422, + MMAL_VIDEO_PROFILE_H264_HIGH444, + MMAL_VIDEO_PROFILE_H264_CONSTRAINED_BASELINE, + MMAL_VIDEO_PROFILE_DUMMY = 0x7FFFFFFF +}; + +enum mmal_video_level { + MMAL_VIDEO_LEVEL_H263_10, + MMAL_VIDEO_LEVEL_H263_20, + MMAL_VIDEO_LEVEL_H263_30, + MMAL_VIDEO_LEVEL_H263_40, + MMAL_VIDEO_LEVEL_H263_45, + MMAL_VIDEO_LEVEL_H263_50, + MMAL_VIDEO_LEVEL_H263_60, + MMAL_VIDEO_LEVEL_H263_70, + MMAL_VIDEO_LEVEL_MP4V_0, + MMAL_VIDEO_LEVEL_MP4V_0b, + MMAL_VIDEO_LEVEL_MP4V_1, + MMAL_VIDEO_LEVEL_MP4V_2, + MMAL_VIDEO_LEVEL_MP4V_3, + MMAL_VIDEO_LEVEL_MP4V_4, + MMAL_VIDEO_LEVEL_MP4V_4a, + MMAL_VIDEO_LEVEL_MP4V_5, + MMAL_VIDEO_LEVEL_MP4V_6, + MMAL_VIDEO_LEVEL_H264_1, + MMAL_VIDEO_LEVEL_H264_1b, + MMAL_VIDEO_LEVEL_H264_11, + MMAL_VIDEO_LEVEL_H264_12, + MMAL_VIDEO_LEVEL_H264_13, + MMAL_VIDEO_LEVEL_H264_2, + MMAL_VIDEO_LEVEL_H264_21, + MMAL_VIDEO_LEVEL_H264_22, + MMAL_VIDEO_LEVEL_H264_3, + MMAL_VIDEO_LEVEL_H264_31, + MMAL_VIDEO_LEVEL_H264_32, + MMAL_VIDEO_LEVEL_H264_4, + MMAL_VIDEO_LEVEL_H264_41, + MMAL_VIDEO_LEVEL_H264_42, + MMAL_VIDEO_LEVEL_H264_5, + MMAL_VIDEO_LEVEL_H264_51, + MMAL_VIDEO_LEVEL_DUMMY = 0x7FFFFFFF +}; + +struct mmal_parameter_video_profile { + enum mmal_video_profile profile; + enum mmal_video_level level; +}; + +/* video parameters */ + +enum mmal_parameter_video_type { + /** @ref MMAL_DISPLAYREGION_T */ + MMAL_PARAMETER_DISPLAYREGION = MMAL_PARAMETER_GROUP_VIDEO, + + /** @ref MMAL_PARAMETER_VIDEO_PROFILE_T */ + MMAL_PARAMETER_SUPPORTED_PROFILES, + + /** @ref MMAL_PARAMETER_VIDEO_PROFILE_T */ + MMAL_PARAMETER_PROFILE, + + /** @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_INTRAPERIOD, + + /** @ref MMAL_PARAMETER_VIDEO_RATECONTROL_T */ + MMAL_PARAMETER_RATECONTROL, + + /** @ref MMAL_PARAMETER_VIDEO_NALUNITFORMAT_T */ + MMAL_PARAMETER_NALUNITFORMAT, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_MINIMISE_FRAGMENTATION, + + /** @ref MMAL_PARAMETER_UINT32_T. + * Setting the value to zero resets to the default (one slice per frame). + */ + MMAL_PARAMETER_MB_ROWS_PER_SLICE, + + /** @ref MMAL_PARAMETER_VIDEO_LEVEL_EXTENSION_T */ + MMAL_PARAMETER_VIDEO_LEVEL_EXTENSION, + + /** @ref MMAL_PARAMETER_VIDEO_EEDE_ENABLE_T */ + MMAL_PARAMETER_VIDEO_EEDE_ENABLE, + + /** @ref MMAL_PARAMETER_VIDEO_EEDE_LOSSRATE_T */ + MMAL_PARAMETER_VIDEO_EEDE_LOSSRATE, + + /** @ref MMAL_PARAMETER_BOOLEAN_T. Request an I-frame. */ + MMAL_PARAMETER_VIDEO_REQUEST_I_FRAME, + /** @ref MMAL_PARAMETER_VIDEO_INTRA_REFRESH_T */ + MMAL_PARAMETER_VIDEO_INTRA_REFRESH, + + /** @ref MMAL_PARAMETER_BOOLEAN_T. */ + MMAL_PARAMETER_VIDEO_IMMUTABLE_INPUT, + + /** @ref MMAL_PARAMETER_UINT32_T. Run-time bit rate control */ + MMAL_PARAMETER_VIDEO_BIT_RATE, + + /** @ref MMAL_PARAMETER_FRAME_RATE_T */ + MMAL_PARAMETER_VIDEO_FRAME_RATE, + + /** @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_MIN_QUANT, + + /** @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_MAX_QUANT, + + /** @ref MMAL_PARAMETER_VIDEO_ENCODE_RC_MODEL_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_RC_MODEL, + + MMAL_PARAMETER_EXTRA_BUFFERS, /**< @ref MMAL_PARAMETER_UINT32_T. */ + /** @ref MMAL_PARAMETER_UINT32_T. + * Changing this parameter from the default can reduce frame rate + * because image buffers need to be re-pitched. + */ + MMAL_PARAMETER_VIDEO_ALIGN_HORIZ, + + /** @ref MMAL_PARAMETER_UINT32_T. + * Changing this parameter from the default can reduce frame rate + * because image buffers need to be re-pitched. + */ + MMAL_PARAMETER_VIDEO_ALIGN_VERT, + + /** @ref MMAL_PARAMETER_BOOLEAN_T. */ + MMAL_PARAMETER_VIDEO_DROPPABLE_PFRAMES, + + /** @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_INITIAL_QUANT, + + /**< @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_QP_P, + + /**< @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_RC_SLICE_DQUANT, + + /** @ref MMAL_PARAMETER_UINT32_T */ + MMAL_PARAMETER_VIDEO_ENCODE_FRAME_LIMIT_BITS, + + /** @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_PEAK_RATE, + + /* H264 specific parameters */ + + /** @ref MMAL_PARAMETER_BOOLEAN_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_DISABLE_CABAC, + + /** @ref MMAL_PARAMETER_BOOLEAN_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_LOW_LATENCY, + + /** @ref MMAL_PARAMETER_BOOLEAN_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_AU_DELIMITERS, + + /** @ref MMAL_PARAMETER_UINT32_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_DEBLOCK_IDC, + + /** @ref MMAL_PARAMETER_VIDEO_ENCODER_H264_MB_INTRA_MODES_T. */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_MB_INTRA_MODE, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_ENCODE_HEADER_ON_OPEN, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_ENCODE_PRECODE_FOR_QP, + + /** @ref MMAL_PARAMETER_VIDEO_DRM_INIT_INFO_T. */ + MMAL_PARAMETER_VIDEO_DRM_INIT_INFO, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_TIMESTAMP_FIFO, + + /** @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_DECODE_ERROR_CONCEALMENT, + + /** @ref MMAL_PARAMETER_VIDEO_DRM_PROTECT_BUFFER_T. */ + MMAL_PARAMETER_VIDEO_DRM_PROTECT_BUFFER, + + /** @ref MMAL_PARAMETER_BYTES_T */ + MMAL_PARAMETER_VIDEO_DECODE_CONFIG_VD3, + + /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_VCL_HRD_PARAMETERS, + + /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_ENCODE_H264_LOW_DELAY_HRD_FLAG, + + /**< @ref MMAL_PARAMETER_BOOLEAN_T */ + MMAL_PARAMETER_VIDEO_ENCODE_INLINE_HEADER +}; + +/** Valid mirror modes */ +enum mmal_parameter_mirror { + MMAL_PARAM_MIRROR_NONE, + MMAL_PARAM_MIRROR_VERTICAL, + MMAL_PARAM_MIRROR_HORIZONTAL, + MMAL_PARAM_MIRROR_BOTH, +}; + +enum mmal_parameter_displaytransform { + MMAL_DISPLAY_ROT0 = 0, + MMAL_DISPLAY_MIRROR_ROT0 = 1, + MMAL_DISPLAY_MIRROR_ROT180 = 2, + MMAL_DISPLAY_ROT180 = 3, + MMAL_DISPLAY_MIRROR_ROT90 = 4, + MMAL_DISPLAY_ROT270 = 5, + MMAL_DISPLAY_ROT90 = 6, + MMAL_DISPLAY_MIRROR_ROT270 = 7, +}; + +enum mmal_parameter_displaymode { + MMAL_DISPLAY_MODE_FILL = 0, + MMAL_DISPLAY_MODE_LETTERBOX = 1, +}; + +enum mmal_parameter_displayset { + MMAL_DISPLAY_SET_NONE = 0, + MMAL_DISPLAY_SET_NUM = 1, + MMAL_DISPLAY_SET_FULLSCREEN = 2, + MMAL_DISPLAY_SET_TRANSFORM = 4, + MMAL_DISPLAY_SET_DEST_RECT = 8, + MMAL_DISPLAY_SET_SRC_RECT = 0x10, + MMAL_DISPLAY_SET_MODE = 0x20, + MMAL_DISPLAY_SET_PIXEL = 0x40, + MMAL_DISPLAY_SET_NOASPECT = 0x80, + MMAL_DISPLAY_SET_LAYER = 0x100, + MMAL_DISPLAY_SET_COPYPROTECT = 0x200, + MMAL_DISPLAY_SET_ALPHA = 0x400, +}; + +struct mmal_parameter_displayregion { + /** Bitfield that indicates which fields are set and should be + * used. All other fields will maintain their current value. + * \ref MMAL_DISPLAYSET_T defines the bits that can be + * combined. + */ + u32 set; + + /** Describes the display output device, with 0 typically + * being a directly connected LCD display. The actual values + * will depend on the hardware. Code using hard-wired numbers + * (e.g. 2) is certain to fail. + */ + + u32 display_num; + /** Indicates that we are using the full device screen area, + * rather than a window of the display. If zero, then + * dest_rect is used to specify a region of the display to + * use. + */ + + s32 fullscreen; + /** Indicates any rotation or flipping used to map frames onto + * the natural display orientation. + */ + u32 transform; /* enum mmal_parameter_displaytransform */ + + /** Where to display the frame within the screen, if + * fullscreen is zero. + */ + struct vchiq_mmal_rect dest_rect; + + /** Indicates which area of the frame to display. If all + * values are zero, the whole frame will be used. + */ + struct vchiq_mmal_rect src_rect; + + /** If set to non-zero, indicates that any display scaling + * should disregard the aspect ratio of the frame region being + * displayed. + */ + s32 noaspect; + + /** Indicates how the image should be scaled to fit the + * display. \code MMAL_DISPLAY_MODE_FILL \endcode indicates + * that the image should fill the screen by potentially + * cropping the frames. Setting \code mode \endcode to \code + * MMAL_DISPLAY_MODE_LETTERBOX \endcode indicates that all the + * source region should be displayed and black bars added if + * necessary. + */ + u32 mode; /* enum mmal_parameter_displaymode */ + + /** If non-zero, defines the width of a source pixel relative + * to \code pixel_y \endcode. If zero, then pixels default to + * being square. + */ + u32 pixel_x; + + /** If non-zero, defines the height of a source pixel relative + * to \code pixel_x \endcode. If zero, then pixels default to + * being square. + */ + u32 pixel_y; + + /** Sets the relative depth of the images, with greater values + * being in front of smaller values. + */ + u32 layer; + + /** Set to non-zero to ensure copy protection is used on + * output. + */ + s32 copyprotect_required; + + /** Level of opacity of the layer, where zero is fully + * transparent and 255 is fully opaque. + */ + u32 alpha; +}; + +#define MMAL_MAX_IMAGEFX_PARAMETERS 5 + +struct mmal_parameter_imagefx_parameters { + enum mmal_parameter_imagefx effect; + u32 num_effect_params; + u32 effect_parameter[MMAL_MAX_IMAGEFX_PARAMETERS]; +}; + +#define MMAL_PARAMETER_CAMERA_INFO_MAX_CAMERAS 4 +#define MMAL_PARAMETER_CAMERA_INFO_MAX_FLASHES 2 +#define MMAL_PARAMETER_CAMERA_INFO_MAX_STR_LEN 16 + +struct mmal_parameter_camera_info_camera_t { + u32 port_id; + u32 max_width; + u32 max_height; + u32 lens_present; + u8 camera_name[MMAL_PARAMETER_CAMERA_INFO_MAX_STR_LEN]; +}; + +enum mmal_parameter_camera_info_flash_type_t { + /* Make values explicit to ensure they match values in config ini */ + MMAL_PARAMETER_CAMERA_INFO_FLASH_TYPE_XENON = 0, + MMAL_PARAMETER_CAMERA_INFO_FLASH_TYPE_LED = 1, + MMAL_PARAMETER_CAMERA_INFO_FLASH_TYPE_OTHER = 2, + MMAL_PARAMETER_CAMERA_INFO_FLASH_TYPE_MAX = 0x7FFFFFFF +}; + +struct mmal_parameter_camera_info_flash_t { + enum mmal_parameter_camera_info_flash_type_t flash_type; +}; + +struct mmal_parameter_camera_info_t { + u32 num_cameras; + u32 num_flashes; + struct mmal_parameter_camera_info_camera_t + cameras[MMAL_PARAMETER_CAMERA_INFO_MAX_CAMERAS]; + struct mmal_parameter_camera_info_flash_t + flashes[MMAL_PARAMETER_CAMERA_INFO_MAX_FLASHES]; +}; diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c new file mode 100644 index 0000000..4360db6 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c @@ -0,0 +1,2063 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + * + * V4L2 driver MMAL vchiq interface code + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/mutex.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/completion.h> +#include <linux/vmalloc.h> +#include <linux/btree.h> +#include <asm/cacheflush.h> +#include <media/videobuf2-vmalloc.h> + +#include "mmal-common.h" +#include "mmal-vchiq.h" +#include "mmal-msg.h" + +#define USE_VCHIQ_ARM +#include "interface/vchi/vchi.h" + +/* maximum number of components supported */ +#define VCHIQ_MMAL_MAX_COMPONENTS 4 + +/*#define FULL_MSG_DUMP 1*/ + +#ifdef DEBUG +static const char *const msg_type_names[] = { + "UNKNOWN", + "QUIT", + "SERVICE_CLOSED", + "GET_VERSION", + "COMPONENT_CREATE", + "COMPONENT_DESTROY", + "COMPONENT_ENABLE", + "COMPONENT_DISABLE", + "PORT_INFO_GET", + "PORT_INFO_SET", + "PORT_ACTION", + "BUFFER_FROM_HOST", + "BUFFER_TO_HOST", + "GET_STATS", + "PORT_PARAMETER_SET", + "PORT_PARAMETER_GET", + "EVENT_TO_HOST", + "GET_CORE_STATS_FOR_PORT", + "OPAQUE_ALLOCATOR", + "CONSUME_MEM", + "LMK", + "OPAQUE_ALLOCATOR_DESC", + "DRM_GET_LHS32", + "DRM_GET_TIME", + "BUFFER_FROM_HOST_ZEROLEN", + "PORT_FLUSH", + "HOST_LOG", +}; +#endif + +static const char *const port_action_type_names[] = { + "UNKNOWN", + "ENABLE", + "DISABLE", + "FLUSH", + "CONNECT", + "DISCONNECT", + "SET_REQUIREMENTS", +}; + +#if defined(DEBUG) +#if defined(FULL_MSG_DUMP) +#define DBG_DUMP_MSG(MSG, MSG_LEN, TITLE) \ + do { \ + pr_debug(TITLE" type:%s(%d) length:%d\n", \ + msg_type_names[(MSG)->h.type], \ + (MSG)->h.type, (MSG_LEN)); \ + print_hex_dump(KERN_DEBUG, "<<h: ", DUMP_PREFIX_OFFSET, \ + 16, 4, (MSG), \ + sizeof(struct mmal_msg_header), 1); \ + print_hex_dump(KERN_DEBUG, "<<p: ", DUMP_PREFIX_OFFSET, \ + 16, 4, \ + ((u8 *)(MSG)) + sizeof(struct mmal_msg_header),\ + (MSG_LEN) - sizeof(struct mmal_msg_header), 1); \ + } while (0) +#else +#define DBG_DUMP_MSG(MSG, MSG_LEN, TITLE) \ + { \ + pr_debug(TITLE" type:%s(%d) length:%d\n", \ + msg_type_names[(MSG)->h.type], \ + (MSG)->h.type, (MSG_LEN)); \ + } +#endif +#else +#define DBG_DUMP_MSG(MSG, MSG_LEN, TITLE) +#endif + +struct vchiq_mmal_instance; + +/* normal message context */ +struct mmal_msg_context { + struct vchiq_mmal_instance *instance; + u32 handle; + + union { + struct { + /* work struct for defered callback - must come first */ + struct work_struct work; + /* mmal instance */ + struct vchiq_mmal_instance *instance; + /* mmal port */ + struct vchiq_mmal_port *port; + /* actual buffer used to store bulk reply */ + struct mmal_buffer *buffer; + /* amount of buffer used */ + unsigned long buffer_used; + /* MMAL buffer flags */ + u32 mmal_flags; + /* Presentation and Decode timestamps */ + s64 pts; + s64 dts; + + int status; /* context status */ + + } bulk; /* bulk data */ + + struct { + /* message handle to release */ + VCHI_HELD_MSG_T msg_handle; + /* pointer to received message */ + struct mmal_msg *msg; + /* received message length */ + u32 msg_len; + /* completion upon reply */ + struct completion cmplt; + } sync; /* synchronous response */ + } u; + +}; + +struct vchiq_mmal_context_map { + /* ensure serialized access to the btree(contention should be low) */ + struct mutex lock; + struct btree_head32 btree_head; + u32 last_handle; +}; + +struct vchiq_mmal_instance { + VCHI_SERVICE_HANDLE_T handle; + + /* ensure serialised access to service */ + struct mutex vchiq_mutex; + + /* ensure serialised access to bulk operations */ + struct mutex bulk_mutex; + + /* vmalloc page to receive scratch bulk xfers into */ + void *bulk_scratch; + + /* mapping table between context handles and mmal_msg_contexts */ + struct vchiq_mmal_context_map context_map; + + /* component to use next */ + int component_idx; + struct vchiq_mmal_component component[VCHIQ_MMAL_MAX_COMPONENTS]; +}; + +static int __must_check +mmal_context_map_init(struct vchiq_mmal_context_map *context_map) +{ + mutex_init(&context_map->lock); + context_map->last_handle = 0; + return btree_init32(&context_map->btree_head); +} + +static void mmal_context_map_destroy(struct vchiq_mmal_context_map *context_map) +{ + mutex_lock(&context_map->lock); + btree_destroy32(&context_map->btree_head); + mutex_unlock(&context_map->lock); +} + +static u32 +mmal_context_map_create_handle(struct vchiq_mmal_context_map *context_map, + struct mmal_msg_context *msg_context, + gfp_t gfp) +{ + u32 handle; + + mutex_lock(&context_map->lock); + + while (1) { + /* just use a simple count for handles, but do not use 0 */ + context_map->last_handle++; + if (!context_map->last_handle) + context_map->last_handle++; + + handle = context_map->last_handle; + + /* check if the handle is already in use */ + if (!btree_lookup32(&context_map->btree_head, handle)) + break; + } + + if (btree_insert32(&context_map->btree_head, handle, + msg_context, gfp)) { + /* probably out of memory */ + mutex_unlock(&context_map->lock); + return 0; + } + + mutex_unlock(&context_map->lock); + return handle; +} + +static struct mmal_msg_context * +mmal_context_map_lookup_handle(struct vchiq_mmal_context_map *context_map, + u32 handle) +{ + struct mmal_msg_context *msg_context; + + if (!handle) + return NULL; + + mutex_lock(&context_map->lock); + + msg_context = btree_lookup32(&context_map->btree_head, handle); + + mutex_unlock(&context_map->lock); + return msg_context; +} + +static void +mmal_context_map_destroy_handle(struct vchiq_mmal_context_map *context_map, + u32 handle) +{ + mutex_lock(&context_map->lock); + btree_remove32(&context_map->btree_head, handle); + mutex_unlock(&context_map->lock); +} + +static struct mmal_msg_context * +get_msg_context(struct vchiq_mmal_instance *instance) +{ + struct mmal_msg_context *msg_context; + + /* todo: should this be allocated from a pool to avoid kzalloc */ + msg_context = kzalloc(sizeof(*msg_context), GFP_KERNEL); + + if (!msg_context) + return ERR_PTR(-ENOMEM); + + msg_context->instance = instance; + msg_context->handle = + mmal_context_map_create_handle(&instance->context_map, + msg_context, + GFP_KERNEL); + + if (!msg_context->handle) { + kfree(msg_context); + return ERR_PTR(-ENOMEM); + } + + return msg_context; +} + +static struct mmal_msg_context * +lookup_msg_context(struct vchiq_mmal_instance *instance, u32 handle) +{ + return mmal_context_map_lookup_handle(&instance->context_map, + handle); +} + +static void +release_msg_context(struct mmal_msg_context *msg_context) +{ + mmal_context_map_destroy_handle(&msg_context->instance->context_map, + msg_context->handle); + kfree(msg_context); +} + +/* deals with receipt of event to host message */ +static void event_to_host_cb(struct vchiq_mmal_instance *instance, + struct mmal_msg *msg, u32 msg_len) +{ + pr_debug("unhandled event\n"); + pr_debug("component:%u port type:%d num:%d cmd:0x%x length:%d\n", + msg->u.event_to_host.client_component, + msg->u.event_to_host.port_type, + msg->u.event_to_host.port_num, + msg->u.event_to_host.cmd, msg->u.event_to_host.length); +} + +/* workqueue scheduled callback + * + * we do this because it is important we do not call any other vchiq + * sync calls from witin the message delivery thread + */ +static void buffer_work_cb(struct work_struct *work) +{ + struct mmal_msg_context *msg_context = + container_of(work, struct mmal_msg_context, u.bulk.work); + + msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance, + msg_context->u.bulk.port, + msg_context->u.bulk.status, + msg_context->u.bulk.buffer, + msg_context->u.bulk.buffer_used, + msg_context->u.bulk.mmal_flags, + msg_context->u.bulk.dts, + msg_context->u.bulk.pts); + + /* release message context */ + release_msg_context(msg_context); +} + +/* enqueue a bulk receive for a given message context */ +static int bulk_receive(struct vchiq_mmal_instance *instance, + struct mmal_msg *msg, + struct mmal_msg_context *msg_context) +{ + unsigned long rd_len; + unsigned long flags = 0; + int ret; + + /* bulk mutex stops other bulk operations while we have a + * receive in progress - released in callback + */ + ret = mutex_lock_interruptible(&instance->bulk_mutex); + if (ret != 0) + return ret; + + rd_len = msg->u.buffer_from_host.buffer_header.length; + + /* take buffer from queue */ + spin_lock_irqsave(&msg_context->u.bulk.port->slock, flags); + if (list_empty(&msg_context->u.bulk.port->buffers)) { + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags); + pr_err("buffer list empty trying to submit bulk receive\n"); + + /* todo: this is a serious error, we should never have + * committed a buffer_to_host operation to the mmal + * port without the buffer to back it up (underflow + * handling) and there is no obvious way to deal with + * this - how is the mmal servie going to react when + * we fail to do the xfer and reschedule a buffer when + * it arrives? perhaps a starved flag to indicate a + * waiting bulk receive? + */ + + mutex_unlock(&instance->bulk_mutex); + + return -EINVAL; + } + + msg_context->u.bulk.buffer = + list_entry(msg_context->u.bulk.port->buffers.next, + struct mmal_buffer, list); + list_del(&msg_context->u.bulk.buffer->list); + + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags); + + /* ensure we do not overrun the available buffer */ + if (rd_len > msg_context->u.bulk.buffer->buffer_size) { + rd_len = msg_context->u.bulk.buffer->buffer_size; + pr_warn("short read as not enough receive buffer space\n"); + /* todo: is this the correct response, what happens to + * the rest of the message data? + */ + } + + /* store length */ + msg_context->u.bulk.buffer_used = rd_len; + msg_context->u.bulk.mmal_flags = + msg->u.buffer_from_host.buffer_header.flags; + msg_context->u.bulk.dts = msg->u.buffer_from_host.buffer_header.dts; + msg_context->u.bulk.pts = msg->u.buffer_from_host.buffer_header.pts; + + /* queue the bulk submission */ + vchi_service_use(instance->handle); + ret = vchi_bulk_queue_receive(instance->handle, + msg_context->u.bulk.buffer->buffer, + /* Actual receive needs to be a multiple + * of 4 bytes + */ + (rd_len + 3) & ~3, + VCHI_FLAGS_CALLBACK_WHEN_OP_COMPLETE | + VCHI_FLAGS_BLOCK_UNTIL_QUEUED, + msg_context); + + vchi_service_release(instance->handle); + + if (ret != 0) { + /* callback will not be clearing the mutex */ + mutex_unlock(&instance->bulk_mutex); + } + + return ret; +} + +/* enque a dummy bulk receive for a given message context */ +static int dummy_bulk_receive(struct vchiq_mmal_instance *instance, + struct mmal_msg_context *msg_context) +{ + int ret; + + /* bulk mutex stops other bulk operations while we have a + * receive in progress - released in callback + */ + ret = mutex_lock_interruptible(&instance->bulk_mutex); + if (ret != 0) + return ret; + + /* zero length indicates this was a dummy transfer */ + msg_context->u.bulk.buffer_used = 0; + + /* queue the bulk submission */ + vchi_service_use(instance->handle); + + ret = vchi_bulk_queue_receive(instance->handle, + instance->bulk_scratch, + 8, + VCHI_FLAGS_CALLBACK_WHEN_OP_COMPLETE | + VCHI_FLAGS_BLOCK_UNTIL_QUEUED, + msg_context); + + vchi_service_release(instance->handle); + + if (ret != 0) { + /* callback will not be clearing the mutex */ + mutex_unlock(&instance->bulk_mutex); + } + + return ret; +} + +/* data in message, memcpy from packet into output buffer */ +static int inline_receive(struct vchiq_mmal_instance *instance, + struct mmal_msg *msg, + struct mmal_msg_context *msg_context) +{ + unsigned long flags = 0; + + /* take buffer from queue */ + spin_lock_irqsave(&msg_context->u.bulk.port->slock, flags); + if (list_empty(&msg_context->u.bulk.port->buffers)) { + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags); + pr_err("buffer list empty trying to receive inline\n"); + + /* todo: this is a serious error, we should never have + * committed a buffer_to_host operation to the mmal + * port without the buffer to back it up (with + * underflow handling) and there is no obvious way to + * deal with this. Less bad than the bulk case as we + * can just drop this on the floor but...unhelpful + */ + return -EINVAL; + } + + msg_context->u.bulk.buffer = + list_entry(msg_context->u.bulk.port->buffers.next, + struct mmal_buffer, list); + list_del(&msg_context->u.bulk.buffer->list); + + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags); + + memcpy(msg_context->u.bulk.buffer->buffer, + msg->u.buffer_from_host.short_data, + msg->u.buffer_from_host.payload_in_message); + + msg_context->u.bulk.buffer_used = + msg->u.buffer_from_host.payload_in_message; + + return 0; +} + +/* queue the buffer availability with MMAL_MSG_TYPE_BUFFER_FROM_HOST */ +static int +buffer_from_host(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, struct mmal_buffer *buf) +{ + struct mmal_msg_context *msg_context; + struct mmal_msg m; + int ret; + + pr_debug("instance:%p buffer:%p\n", instance->handle, buf); + + /* bulk mutex stops other bulk operations while we + * have a receive in progress + */ + if (mutex_lock_interruptible(&instance->bulk_mutex)) + return -EINTR; + + /* get context */ + msg_context = get_msg_context(instance); + if (IS_ERR(msg_context)) { + ret = PTR_ERR(msg_context); + goto unlock; + } + + /* store bulk message context for when data arrives */ + msg_context->u.bulk.instance = instance; + msg_context->u.bulk.port = port; + msg_context->u.bulk.buffer = NULL; /* not valid until bulk xfer */ + msg_context->u.bulk.buffer_used = 0; + + /* initialise work structure ready to schedule callback */ + INIT_WORK(&msg_context->u.bulk.work, buffer_work_cb); + + /* prep the buffer from host message */ + memset(&m, 0xbc, sizeof(m)); /* just to make debug clearer */ + + m.h.type = MMAL_MSG_TYPE_BUFFER_FROM_HOST; + m.h.magic = MMAL_MAGIC; + m.h.context = msg_context->handle; + m.h.status = 0; + + /* drvbuf is our private data passed back */ + m.u.buffer_from_host.drvbuf.magic = MMAL_MAGIC; + m.u.buffer_from_host.drvbuf.component_handle = port->component->handle; + m.u.buffer_from_host.drvbuf.port_handle = port->handle; + m.u.buffer_from_host.drvbuf.client_context = msg_context->handle; + + /* buffer header */ + m.u.buffer_from_host.buffer_header.cmd = 0; + m.u.buffer_from_host.buffer_header.data = + (u32)(unsigned long)buf->buffer; + m.u.buffer_from_host.buffer_header.alloc_size = buf->buffer_size; + m.u.buffer_from_host.buffer_header.length = 0; /* nothing used yet */ + m.u.buffer_from_host.buffer_header.offset = 0; /* no offset */ + m.u.buffer_from_host.buffer_header.flags = 0; /* no flags */ + m.u.buffer_from_host.buffer_header.pts = MMAL_TIME_UNKNOWN; + m.u.buffer_from_host.buffer_header.dts = MMAL_TIME_UNKNOWN; + + /* clear buffer type sepecific data */ + memset(&m.u.buffer_from_host.buffer_header_type_specific, 0, + sizeof(m.u.buffer_from_host.buffer_header_type_specific)); + + /* no payload in message */ + m.u.buffer_from_host.payload_in_message = 0; + + vchi_service_use(instance->handle); + + ret = vchi_queue_kernel_message(instance->handle, + &m, + sizeof(struct mmal_msg_header) + + sizeof(m.u.buffer_from_host)); + + if (ret != 0) { + release_msg_context(msg_context); + /* todo: is this correct error value? */ + } + + vchi_service_release(instance->handle); + +unlock: + mutex_unlock(&instance->bulk_mutex); + + return ret; +} + +/* submit a buffer to the mmal sevice + * + * the buffer_from_host uses size data from the ports next available + * mmal_buffer and deals with there being no buffer available by + * incrementing the underflow for later + */ +static int port_buffer_from_host(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + int ret; + struct mmal_buffer *buf; + unsigned long flags = 0; + + if (!port->enabled) + return -EINVAL; + + /* peek buffer from queue */ + spin_lock_irqsave(&port->slock, flags); + if (list_empty(&port->buffers)) { + port->buffer_underflow++; + spin_unlock_irqrestore(&port->slock, flags); + return -ENOSPC; + } + + buf = list_entry(port->buffers.next, struct mmal_buffer, list); + + spin_unlock_irqrestore(&port->slock, flags); + + /* issue buffer to mmal service */ + ret = buffer_from_host(instance, port, buf); + if (ret) { + pr_err("adding buffer header failed\n"); + /* todo: how should this be dealt with */ + } + + return ret; +} + +/* deals with receipt of buffer to host message */ +static void buffer_to_host_cb(struct vchiq_mmal_instance *instance, + struct mmal_msg *msg, u32 msg_len) +{ + struct mmal_msg_context *msg_context; + u32 handle; + + pr_debug("buffer_to_host_cb: instance:%p msg:%p msg_len:%d\n", + instance, msg, msg_len); + + if (msg->u.buffer_from_host.drvbuf.magic == MMAL_MAGIC) { + handle = msg->u.buffer_from_host.drvbuf.client_context; + msg_context = lookup_msg_context(instance, handle); + + if (!msg_context) { + pr_err("drvbuf.client_context(%u) is invalid\n", + handle); + return; + } + } else { + pr_err("MMAL_MSG_TYPE_BUFFER_TO_HOST with bad magic\n"); + return; + } + + if (msg->h.status != MMAL_MSG_STATUS_SUCCESS) { + /* message reception had an error */ + pr_warn("error %d in reply\n", msg->h.status); + + msg_context->u.bulk.status = msg->h.status; + + } else if (msg->u.buffer_from_host.buffer_header.length == 0) { + /* empty buffer */ + if (msg->u.buffer_from_host.buffer_header.flags & + MMAL_BUFFER_HEADER_FLAG_EOS) { + msg_context->u.bulk.status = + dummy_bulk_receive(instance, msg_context); + if (msg_context->u.bulk.status == 0) + return; /* successful bulk submission, bulk + * completion will trigger callback + */ + } else { + /* do callback with empty buffer - not EOS though */ + msg_context->u.bulk.status = 0; + msg_context->u.bulk.buffer_used = 0; + } + } else if (msg->u.buffer_from_host.payload_in_message == 0) { + /* data is not in message, queue a bulk receive */ + msg_context->u.bulk.status = + bulk_receive(instance, msg, msg_context); + if (msg_context->u.bulk.status == 0) + return; /* successful bulk submission, bulk + * completion will trigger callback + */ + + /* failed to submit buffer, this will end badly */ + pr_err("error %d on bulk submission\n", + msg_context->u.bulk.status); + + } else if (msg->u.buffer_from_host.payload_in_message <= + MMAL_VC_SHORT_DATA) { + /* data payload within message */ + msg_context->u.bulk.status = inline_receive(instance, msg, + msg_context); + } else { + pr_err("message with invalid short payload\n"); + + /* signal error */ + msg_context->u.bulk.status = -EINVAL; + msg_context->u.bulk.buffer_used = + msg->u.buffer_from_host.payload_in_message; + } + + /* replace the buffer header */ + port_buffer_from_host(instance, msg_context->u.bulk.port); + + /* schedule the port callback */ + schedule_work(&msg_context->u.bulk.work); +} + +static void bulk_receive_cb(struct vchiq_mmal_instance *instance, + struct mmal_msg_context *msg_context) +{ + /* bulk receive operation complete */ + mutex_unlock(&msg_context->u.bulk.instance->bulk_mutex); + + /* replace the buffer header */ + port_buffer_from_host(msg_context->u.bulk.instance, + msg_context->u.bulk.port); + + msg_context->u.bulk.status = 0; + + /* schedule the port callback */ + schedule_work(&msg_context->u.bulk.work); +} + +static void bulk_abort_cb(struct vchiq_mmal_instance *instance, + struct mmal_msg_context *msg_context) +{ + pr_err("%s: bulk ABORTED msg_context:%p\n", __func__, msg_context); + + /* bulk receive operation complete */ + mutex_unlock(&msg_context->u.bulk.instance->bulk_mutex); + + /* replace the buffer header */ + port_buffer_from_host(msg_context->u.bulk.instance, + msg_context->u.bulk.port); + + msg_context->u.bulk.status = -EINTR; + + schedule_work(&msg_context->u.bulk.work); +} + +/* incoming event service callback */ +static void service_callback(void *param, + const VCHI_CALLBACK_REASON_T reason, + void *bulk_ctx) +{ + struct vchiq_mmal_instance *instance = param; + int status; + u32 msg_len; + struct mmal_msg *msg; + VCHI_HELD_MSG_T msg_handle; + struct mmal_msg_context *msg_context; + + if (!instance) { + pr_err("Message callback passed NULL instance\n"); + return; + } + + switch (reason) { + case VCHI_CALLBACK_MSG_AVAILABLE: + status = vchi_msg_hold(instance->handle, (void **)&msg, + &msg_len, VCHI_FLAGS_NONE, &msg_handle); + if (status) { + pr_err("Unable to dequeue a message (%d)\n", status); + break; + } + + DBG_DUMP_MSG(msg, msg_len, "<<< reply message"); + + /* handling is different for buffer messages */ + switch (msg->h.type) { + case MMAL_MSG_TYPE_BUFFER_FROM_HOST: + vchi_held_msg_release(&msg_handle); + break; + + case MMAL_MSG_TYPE_EVENT_TO_HOST: + event_to_host_cb(instance, msg, msg_len); + vchi_held_msg_release(&msg_handle); + + break; + + case MMAL_MSG_TYPE_BUFFER_TO_HOST: + buffer_to_host_cb(instance, msg, msg_len); + vchi_held_msg_release(&msg_handle); + break; + + default: + /* messages dependent on header context to complete */ + if (!msg->h.context) { + pr_err("received message context was null!\n"); + vchi_held_msg_release(&msg_handle); + break; + } + + msg_context = lookup_msg_context(instance, + msg->h.context); + if (!msg_context) { + pr_err("received invalid message context %u!\n", + msg->h.context); + vchi_held_msg_release(&msg_handle); + break; + } + + /* fill in context values */ + msg_context->u.sync.msg_handle = msg_handle; + msg_context->u.sync.msg = msg; + msg_context->u.sync.msg_len = msg_len; + + /* todo: should this check (completion_done() + * == 1) for no one waiting? or do we need a + * flag to tell us the completion has been + * interrupted so we can free the message and + * its context. This probably also solves the + * message arriving after interruption todo + * below + */ + + /* complete message so caller knows it happened */ + complete(&msg_context->u.sync.cmplt); + break; + } + + break; + + case VCHI_CALLBACK_BULK_RECEIVED: + bulk_receive_cb(instance, bulk_ctx); + break; + + case VCHI_CALLBACK_BULK_RECEIVE_ABORTED: + bulk_abort_cb(instance, bulk_ctx); + break; + + case VCHI_CALLBACK_SERVICE_CLOSED: + /* TODO: consider if this requires action if received when + * driver is not explicitly closing the service + */ + break; + + default: + pr_err("Received unhandled message reason %d\n", reason); + break; + } +} + +static int send_synchronous_mmal_msg(struct vchiq_mmal_instance *instance, + struct mmal_msg *msg, + unsigned int payload_len, + struct mmal_msg **msg_out, + VCHI_HELD_MSG_T *msg_handle_out) +{ + struct mmal_msg_context *msg_context; + int ret; + + /* payload size must not cause message to exceed max size */ + if (payload_len > + (MMAL_MSG_MAX_SIZE - sizeof(struct mmal_msg_header))) { + pr_err("payload length %d exceeds max:%d\n", payload_len, + (int)(MMAL_MSG_MAX_SIZE - + sizeof(struct mmal_msg_header))); + return -EINVAL; + } + + msg_context = get_msg_context(instance); + if (IS_ERR(msg_context)) + return PTR_ERR(msg_context); + + init_completion(&msg_context->u.sync.cmplt); + + msg->h.magic = MMAL_MAGIC; + msg->h.context = msg_context->handle; + msg->h.status = 0; + + DBG_DUMP_MSG(msg, (sizeof(struct mmal_msg_header) + payload_len), + ">>> sync message"); + + vchi_service_use(instance->handle); + + ret = vchi_queue_kernel_message(instance->handle, + msg, + sizeof(struct mmal_msg_header) + + payload_len); + + vchi_service_release(instance->handle); + + if (ret) { + pr_err("error %d queuing message\n", ret); + release_msg_context(msg_context); + return ret; + } + + ret = wait_for_completion_timeout(&msg_context->u.sync.cmplt, 3 * HZ); + if (ret <= 0) { + pr_err("error %d waiting for sync completion\n", ret); + if (ret == 0) + ret = -ETIME; + /* todo: what happens if the message arrives after aborting */ + release_msg_context(msg_context); + return ret; + } + + *msg_out = msg_context->u.sync.msg; + *msg_handle_out = msg_context->u.sync.msg_handle; + release_msg_context(msg_context); + + return 0; +} + +static void dump_port_info(struct vchiq_mmal_port *port) +{ + pr_debug("port handle:0x%x enabled:%d\n", port->handle, port->enabled); + + pr_debug("buffer minimum num:%d size:%d align:%d\n", + port->minimum_buffer.num, + port->minimum_buffer.size, port->minimum_buffer.alignment); + + pr_debug("buffer recommended num:%d size:%d align:%d\n", + port->recommended_buffer.num, + port->recommended_buffer.size, + port->recommended_buffer.alignment); + + pr_debug("buffer current values num:%d size:%d align:%d\n", + port->current_buffer.num, + port->current_buffer.size, port->current_buffer.alignment); + + pr_debug("elementary stream: type:%d encoding:0x%x variant:0x%x\n", + port->format.type, + port->format.encoding, port->format.encoding_variant); + + pr_debug(" bitrate:%d flags:0x%x\n", + port->format.bitrate, port->format.flags); + + if (port->format.type == MMAL_ES_TYPE_VIDEO) { + pr_debug + ("es video format: width:%d height:%d colourspace:0x%x\n", + port->es.video.width, port->es.video.height, + port->es.video.color_space); + + pr_debug(" : crop xywh %d,%d,%d,%d\n", + port->es.video.crop.x, + port->es.video.crop.y, + port->es.video.crop.width, port->es.video.crop.height); + pr_debug(" : framerate %d/%d aspect %d/%d\n", + port->es.video.frame_rate.num, + port->es.video.frame_rate.den, + port->es.video.par.num, port->es.video.par.den); + } +} + +static void port_to_mmal_msg(struct vchiq_mmal_port *port, struct mmal_port *p) +{ + /* todo do readonly fields need setting at all? */ + p->type = port->type; + p->index = port->index; + p->index_all = 0; + p->is_enabled = port->enabled; + p->buffer_num_min = port->minimum_buffer.num; + p->buffer_size_min = port->minimum_buffer.size; + p->buffer_alignment_min = port->minimum_buffer.alignment; + p->buffer_num_recommended = port->recommended_buffer.num; + p->buffer_size_recommended = port->recommended_buffer.size; + + /* only three writable fields in a port */ + p->buffer_num = port->current_buffer.num; + p->buffer_size = port->current_buffer.size; + p->userdata = (u32)(unsigned long)port; +} + +static int port_info_set(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + pr_debug("setting port info port %p\n", port); + if (!port) + return -1; + dump_port_info(port); + + m.h.type = MMAL_MSG_TYPE_PORT_INFO_SET; + + m.u.port_info_set.component_handle = port->component->handle; + m.u.port_info_set.port_type = port->type; + m.u.port_info_set.port_index = port->index; + + port_to_mmal_msg(port, &m.u.port_info_set.port); + + /* elementary stream format setup */ + m.u.port_info_set.format.type = port->format.type; + m.u.port_info_set.format.encoding = port->format.encoding; + m.u.port_info_set.format.encoding_variant = + port->format.encoding_variant; + m.u.port_info_set.format.bitrate = port->format.bitrate; + m.u.port_info_set.format.flags = port->format.flags; + + memcpy(&m.u.port_info_set.es, &port->es, + sizeof(union mmal_es_specific_format)); + + m.u.port_info_set.format.extradata_size = port->format.extradata_size; + memcpy(&m.u.port_info_set.extradata, port->format.extradata, + port->format.extradata_size); + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.port_info_set), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_INFO_SET) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + /* return operation status */ + ret = -rmsg->u.port_info_get_reply.status; + + pr_debug("%s:result:%d component:0x%x port:%d\n", __func__, ret, + port->component->handle, port->handle); + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* use port info get message to retrieve port information */ +static int port_info_get(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + /* port info time */ + m.h.type = MMAL_MSG_TYPE_PORT_INFO_GET; + m.u.port_info_get.component_handle = port->component->handle; + m.u.port_info_get.port_type = port->type; + m.u.port_info_get.index = port->index; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.port_info_get), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_INFO_GET) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + /* return operation status */ + ret = -rmsg->u.port_info_get_reply.status; + if (ret != MMAL_MSG_STATUS_SUCCESS) + goto release_msg; + + if (rmsg->u.port_info_get_reply.port.is_enabled == 0) + port->enabled = false; + else + port->enabled = true; + + /* copy the values out of the message */ + port->handle = rmsg->u.port_info_get_reply.port_handle; + + /* port type and index cached to use on port info set because + * it does not use a port handle + */ + port->type = rmsg->u.port_info_get_reply.port_type; + port->index = rmsg->u.port_info_get_reply.port_index; + + port->minimum_buffer.num = + rmsg->u.port_info_get_reply.port.buffer_num_min; + port->minimum_buffer.size = + rmsg->u.port_info_get_reply.port.buffer_size_min; + port->minimum_buffer.alignment = + rmsg->u.port_info_get_reply.port.buffer_alignment_min; + + port->recommended_buffer.alignment = + rmsg->u.port_info_get_reply.port.buffer_alignment_min; + port->recommended_buffer.num = + rmsg->u.port_info_get_reply.port.buffer_num_recommended; + + port->current_buffer.num = rmsg->u.port_info_get_reply.port.buffer_num; + port->current_buffer.size = + rmsg->u.port_info_get_reply.port.buffer_size; + + /* stream format */ + port->format.type = rmsg->u.port_info_get_reply.format.type; + port->format.encoding = rmsg->u.port_info_get_reply.format.encoding; + port->format.encoding_variant = + rmsg->u.port_info_get_reply.format.encoding_variant; + port->format.bitrate = rmsg->u.port_info_get_reply.format.bitrate; + port->format.flags = rmsg->u.port_info_get_reply.format.flags; + + /* elementary stream format */ + memcpy(&port->es, + &rmsg->u.port_info_get_reply.es, + sizeof(union mmal_es_specific_format)); + port->format.es = &port->es; + + port->format.extradata_size = + rmsg->u.port_info_get_reply.format.extradata_size; + memcpy(port->format.extradata, + rmsg->u.port_info_get_reply.extradata, + port->format.extradata_size); + + pr_debug("received port info\n"); + dump_port_info(port); + +release_msg: + + pr_debug("%s:result:%d component:0x%x port:%d\n", + __func__, ret, port->component->handle, port->handle); + + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* create comonent on vc */ +static int create_component(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component, + const char *name) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + /* build component create message */ + m.h.type = MMAL_MSG_TYPE_COMPONENT_CREATE; + m.u.component_create.client_component = (u32)(unsigned long)component; + strncpy(m.u.component_create.name, name, + sizeof(m.u.component_create.name)); + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.component_create), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != m.h.type) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.component_create_reply.status; + if (ret != MMAL_MSG_STATUS_SUCCESS) + goto release_msg; + + /* a valid component response received */ + component->handle = rmsg->u.component_create_reply.component_handle; + component->inputs = rmsg->u.component_create_reply.input_num; + component->outputs = rmsg->u.component_create_reply.output_num; + component->clocks = rmsg->u.component_create_reply.clock_num; + + pr_debug("Component handle:0x%x in:%d out:%d clock:%d\n", + component->handle, + component->inputs, component->outputs, component->clocks); + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* destroys a component on vc */ +static int destroy_component(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_COMPONENT_DESTROY; + m.u.component_destroy.component_handle = component->handle; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.component_destroy), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != m.h.type) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.component_destroy_reply.status; + +release_msg: + + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* enable a component on vc */ +static int enable_component(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_COMPONENT_ENABLE; + m.u.component_enable.component_handle = component->handle; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.component_enable), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != m.h.type) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.component_enable_reply.status; + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* disable a component on vc */ +static int disable_component(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_COMPONENT_DISABLE; + m.u.component_disable.component_handle = component->handle; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.component_disable), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != m.h.type) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.component_disable_reply.status; + +release_msg: + + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* get version of mmal implementation */ +static int get_version(struct vchiq_mmal_instance *instance, + u32 *major_out, u32 *minor_out) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_GET_VERSION; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.version), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != m.h.type) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + *major_out = rmsg->u.version.major; + *minor_out = rmsg->u.version.minor; + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* do a port action with a port as a parameter */ +static int port_action_port(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + enum mmal_msg_port_action_type action_type) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_PORT_ACTION; + m.u.port_action_port.component_handle = port->component->handle; + m.u.port_action_port.port_handle = port->handle; + m.u.port_action_port.action = action_type; + + port_to_mmal_msg(port, &m.u.port_action_port.port); + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.port_action_port), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_ACTION) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.port_action_reply.status; + + pr_debug("%s:result:%d component:0x%x port:%d action:%s(%d)\n", + __func__, + ret, port->component->handle, port->handle, + port_action_type_names[action_type], action_type); + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* do a port action with handles as parameters */ +static int port_action_handle(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + enum mmal_msg_port_action_type action_type, + u32 connect_component_handle, + u32 connect_port_handle) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_PORT_ACTION; + + m.u.port_action_handle.component_handle = port->component->handle; + m.u.port_action_handle.port_handle = port->handle; + m.u.port_action_handle.action = action_type; + + m.u.port_action_handle.connect_component_handle = + connect_component_handle; + m.u.port_action_handle.connect_port_handle = connect_port_handle; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(m.u.port_action_handle), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_ACTION) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.port_action_reply.status; + + pr_debug("%s:result:%d component:0x%x port:%d action:%s(%d)" \ + " connect component:0x%x connect port:%d\n", + __func__, + ret, port->component->handle, port->handle, + port_action_type_names[action_type], + action_type, connect_component_handle, connect_port_handle); + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +static int port_parameter_set(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + u32 parameter_id, void *value, u32 value_size) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_PORT_PARAMETER_SET; + + m.u.port_parameter_set.component_handle = port->component->handle; + m.u.port_parameter_set.port_handle = port->handle; + m.u.port_parameter_set.id = parameter_id; + m.u.port_parameter_set.size = (2 * sizeof(u32)) + value_size; + memcpy(&m.u.port_parameter_set.value, value, value_size); + + ret = send_synchronous_mmal_msg(instance, &m, + (4 * sizeof(u32)) + value_size, + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_PARAMETER_SET) { + /* got an unexpected message type in reply */ + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.port_parameter_set_reply.status; + + pr_debug("%s:result:%d component:0x%x port:%d parameter:%d\n", + __func__, + ret, port->component->handle, port->handle, parameter_id); + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +static int port_parameter_get(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + u32 parameter_id, void *value, u32 *value_size) +{ + int ret; + struct mmal_msg m; + struct mmal_msg *rmsg; + VCHI_HELD_MSG_T rmsg_handle; + + m.h.type = MMAL_MSG_TYPE_PORT_PARAMETER_GET; + + m.u.port_parameter_get.component_handle = port->component->handle; + m.u.port_parameter_get.port_handle = port->handle; + m.u.port_parameter_get.id = parameter_id; + m.u.port_parameter_get.size = (2 * sizeof(u32)) + *value_size; + + ret = send_synchronous_mmal_msg(instance, &m, + sizeof(struct + mmal_msg_port_parameter_get), + &rmsg, &rmsg_handle); + if (ret) + return ret; + + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_PARAMETER_GET) { + /* got an unexpected message type in reply */ + pr_err("Incorrect reply type %d\n", rmsg->h.type); + ret = -EINVAL; + goto release_msg; + } + + ret = -rmsg->u.port_parameter_get_reply.status; + /* port_parameter_get_reply.size includes the header, + * whilst *value_size doesn't. + */ + rmsg->u.port_parameter_get_reply.size -= (2 * sizeof(u32)); + + if (ret || rmsg->u.port_parameter_get_reply.size > *value_size) { + /* Copy only as much as we have space for + * but report true size of parameter + */ + memcpy(value, &rmsg->u.port_parameter_get_reply.value, + *value_size); + *value_size = rmsg->u.port_parameter_get_reply.size; + } else + memcpy(value, &rmsg->u.port_parameter_get_reply.value, + rmsg->u.port_parameter_get_reply.size); + + pr_debug("%s:result:%d component:0x%x port:%d parameter:%d\n", __func__, + ret, port->component->handle, port->handle, parameter_id); + +release_msg: + vchi_held_msg_release(&rmsg_handle); + + return ret; +} + +/* disables a port and drains buffers from it */ +static int port_disable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + int ret; + struct list_head *q, *buf_head; + unsigned long flags = 0; + + if (!port->enabled) + return 0; + + port->enabled = false; + + ret = port_action_port(instance, port, + MMAL_MSG_PORT_ACTION_TYPE_DISABLE); + if (ret == 0) { + /* drain all queued buffers on port */ + spin_lock_irqsave(&port->slock, flags); + + list_for_each_safe(buf_head, q, &port->buffers) { + struct mmal_buffer *mmalbuf; + + mmalbuf = list_entry(buf_head, struct mmal_buffer, + list); + list_del(buf_head); + if (port->buffer_cb) + port->buffer_cb(instance, + port, 0, mmalbuf, 0, 0, + MMAL_TIME_UNKNOWN, + MMAL_TIME_UNKNOWN); + } + + spin_unlock_irqrestore(&port->slock, flags); + + ret = port_info_get(instance, port); + } + + return ret; +} + +/* enable a port */ +static int port_enable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + unsigned int hdr_count; + struct list_head *buf_head; + int ret; + + if (port->enabled) + return 0; + + /* ensure there are enough buffers queued to cover the buffer headers */ + if (port->buffer_cb) { + hdr_count = 0; + list_for_each(buf_head, &port->buffers) { + hdr_count++; + } + if (hdr_count < port->current_buffer.num) + return -ENOSPC; + } + + ret = port_action_port(instance, port, + MMAL_MSG_PORT_ACTION_TYPE_ENABLE); + if (ret) + goto done; + + port->enabled = true; + + if (port->buffer_cb) { + /* send buffer headers to videocore */ + hdr_count = 1; + list_for_each(buf_head, &port->buffers) { + struct mmal_buffer *mmalbuf; + + mmalbuf = list_entry(buf_head, struct mmal_buffer, + list); + ret = buffer_from_host(instance, port, mmalbuf); + if (ret) + goto done; + + hdr_count++; + if (hdr_count > port->current_buffer.num) + break; + } + } + + ret = port_info_get(instance, port); + +done: + return ret; +} + +/* ------------------------------------------------------------------ + * Exported API + *------------------------------------------------------------------ + */ + +int vchiq_mmal_port_set_format(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + ret = port_info_set(instance, port); + if (ret) + goto release_unlock; + + /* read what has actually been set */ + ret = port_info_get(instance, port); + +release_unlock: + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +int vchiq_mmal_port_parameter_set(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + u32 parameter, void *value, u32 value_size) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + ret = port_parameter_set(instance, port, parameter, value, value_size); + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +int vchiq_mmal_port_parameter_get(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + u32 parameter, void *value, u32 *value_size) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + ret = port_parameter_get(instance, port, parameter, value, value_size); + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +/* enable a port + * + * enables a port and queues buffers for satisfying callbacks if we + * provide a callback handler + */ +int vchiq_mmal_port_enable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + vchiq_mmal_buffer_cb buffer_cb) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + /* already enabled - noop */ + if (port->enabled) { + ret = 0; + goto unlock; + } + + port->buffer_cb = buffer_cb; + + ret = port_enable(instance, port); + +unlock: + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +int vchiq_mmal_port_disable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + if (!port->enabled) { + mutex_unlock(&instance->vchiq_mutex); + return 0; + } + + ret = port_disable(instance, port); + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +/* ports will be connected in a tunneled manner so data buffers + * are not handled by client. + */ +int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *src, + struct vchiq_mmal_port *dst) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + /* disconnect ports if connected */ + if (src->connected) { + ret = port_disable(instance, src); + if (ret) { + pr_err("failed disabling src port(%d)\n", ret); + goto release_unlock; + } + + /* do not need to disable the destination port as they + * are connected and it is done automatically + */ + + ret = port_action_handle(instance, src, + MMAL_MSG_PORT_ACTION_TYPE_DISCONNECT, + src->connected->component->handle, + src->connected->handle); + if (ret < 0) { + pr_err("failed disconnecting src port\n"); + goto release_unlock; + } + src->connected->enabled = false; + src->connected = NULL; + } + + if (!dst) { + /* do not make new connection */ + ret = 0; + pr_debug("not making new connection\n"); + goto release_unlock; + } + + /* copy src port format to dst */ + dst->format.encoding = src->format.encoding; + dst->es.video.width = src->es.video.width; + dst->es.video.height = src->es.video.height; + dst->es.video.crop.x = src->es.video.crop.x; + dst->es.video.crop.y = src->es.video.crop.y; + dst->es.video.crop.width = src->es.video.crop.width; + dst->es.video.crop.height = src->es.video.crop.height; + dst->es.video.frame_rate.num = src->es.video.frame_rate.num; + dst->es.video.frame_rate.den = src->es.video.frame_rate.den; + + /* set new format */ + ret = port_info_set(instance, dst); + if (ret) { + pr_debug("setting port info failed\n"); + goto release_unlock; + } + + /* read what has actually been set */ + ret = port_info_get(instance, dst); + if (ret) { + pr_debug("read back port info failed\n"); + goto release_unlock; + } + + /* connect two ports together */ + ret = port_action_handle(instance, src, + MMAL_MSG_PORT_ACTION_TYPE_CONNECT, + dst->component->handle, dst->handle); + if (ret < 0) { + pr_debug("connecting port %d:%d to %d:%d failed\n", + src->component->handle, src->handle, + dst->component->handle, dst->handle); + goto release_unlock; + } + src->connected = dst; + +release_unlock: + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +int vchiq_mmal_submit_buffer(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + struct mmal_buffer *buffer) +{ + unsigned long flags = 0; + + spin_lock_irqsave(&port->slock, flags); + list_add_tail(&buffer->list, &port->buffers); + spin_unlock_irqrestore(&port->slock, flags); + + /* the port previously underflowed because it was missing a + * mmal_buffer which has just been added, submit that buffer + * to the mmal service. + */ + if (port->buffer_underflow) { + port_buffer_from_host(instance, port); + port->buffer_underflow--; + } + + return 0; +} + +/* Initialise a mmal component and its ports + * + */ +int vchiq_mmal_component_init(struct vchiq_mmal_instance *instance, + const char *name, + struct vchiq_mmal_component **component_out) +{ + int ret; + int idx; /* port index */ + struct vchiq_mmal_component *component; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + if (instance->component_idx == VCHIQ_MMAL_MAX_COMPONENTS) { + ret = -EINVAL; /* todo is this correct error? */ + goto unlock; + } + + component = &instance->component[instance->component_idx]; + + ret = create_component(instance, component, name); + if (ret < 0) + goto unlock; + + /* ports info needs gathering */ + component->control.type = MMAL_PORT_TYPE_CONTROL; + component->control.index = 0; + component->control.component = component; + spin_lock_init(&component->control.slock); + INIT_LIST_HEAD(&component->control.buffers); + ret = port_info_get(instance, &component->control); + if (ret < 0) + goto release_component; + + for (idx = 0; idx < component->inputs; idx++) { + component->input[idx].type = MMAL_PORT_TYPE_INPUT; + component->input[idx].index = idx; + component->input[idx].component = component; + spin_lock_init(&component->input[idx].slock); + INIT_LIST_HEAD(&component->input[idx].buffers); + ret = port_info_get(instance, &component->input[idx]); + if (ret < 0) + goto release_component; + } + + for (idx = 0; idx < component->outputs; idx++) { + component->output[idx].type = MMAL_PORT_TYPE_OUTPUT; + component->output[idx].index = idx; + component->output[idx].component = component; + spin_lock_init(&component->output[idx].slock); + INIT_LIST_HEAD(&component->output[idx].buffers); + ret = port_info_get(instance, &component->output[idx]); + if (ret < 0) + goto release_component; + } + + for (idx = 0; idx < component->clocks; idx++) { + component->clock[idx].type = MMAL_PORT_TYPE_CLOCK; + component->clock[idx].index = idx; + component->clock[idx].component = component; + spin_lock_init(&component->clock[idx].slock); + INIT_LIST_HEAD(&component->clock[idx].buffers); + ret = port_info_get(instance, &component->clock[idx]); + if (ret < 0) + goto release_component; + } + + instance->component_idx++; + + *component_out = component; + + mutex_unlock(&instance->vchiq_mutex); + + return 0; + +release_component: + destroy_component(instance, component); +unlock: + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +/* + * cause a mmal component to be destroyed + */ +int vchiq_mmal_component_finalise(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + if (component->enabled) + ret = disable_component(instance, component); + + ret = destroy_component(instance, component); + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +/* + * cause a mmal component to be enabled + */ +int vchiq_mmal_component_enable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + if (component->enabled) { + mutex_unlock(&instance->vchiq_mutex); + return 0; + } + + ret = enable_component(instance, component); + if (ret == 0) + component->enabled = true; + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +/* + * cause a mmal component to be enabled + */ +int vchiq_mmal_component_disable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + if (!component->enabled) { + mutex_unlock(&instance->vchiq_mutex); + return 0; + } + + ret = disable_component(instance, component); + if (ret == 0) + component->enabled = false; + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +int vchiq_mmal_version(struct vchiq_mmal_instance *instance, + u32 *major_out, u32 *minor_out) +{ + int ret; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + ret = get_version(instance, major_out, minor_out); + + mutex_unlock(&instance->vchiq_mutex); + + return ret; +} + +int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance) +{ + int status = 0; + + if (!instance) + return -EINVAL; + + if (mutex_lock_interruptible(&instance->vchiq_mutex)) + return -EINTR; + + vchi_service_use(instance->handle); + + status = vchi_service_close(instance->handle); + if (status != 0) + pr_err("mmal-vchiq: VCHIQ close failed"); + + mutex_unlock(&instance->vchiq_mutex); + + vfree(instance->bulk_scratch); + + mmal_context_map_destroy(&instance->context_map); + + kfree(instance); + + return status; +} + +int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) +{ + int status; + struct vchiq_mmal_instance *instance; + static VCHI_CONNECTION_T *vchi_connection; + static VCHI_INSTANCE_T vchi_instance; + SERVICE_CREATION_T params = { + .version = VCHI_VERSION_EX(VC_MMAL_VER, VC_MMAL_MIN_VER), + .service_id = VC_MMAL_SERVER_NAME, + .connection = vchi_connection, + .rx_fifo_size = 0, + .tx_fifo_size = 0, + .callback = service_callback, + .callback_param = NULL, + .want_unaligned_bulk_rx = 1, + .want_unaligned_bulk_tx = 1, + .want_crc = 0 + }; + + /* compile time checks to ensure structure size as they are + * directly (de)serialised from memory. + */ + + /* ensure the header structure has packed to the correct size */ + BUILD_BUG_ON(sizeof(struct mmal_msg_header) != 24); + + /* ensure message structure does not exceed maximum length */ + BUILD_BUG_ON(sizeof(struct mmal_msg) > MMAL_MSG_MAX_SIZE); + + /* mmal port struct is correct size */ + BUILD_BUG_ON(sizeof(struct mmal_port) != 64); + + /* create a vchi instance */ + status = vchi_initialise(&vchi_instance); + if (status) { + pr_err("Failed to initialise VCHI instance (status=%d)\n", + status); + return -EIO; + } + + status = vchi_connect(NULL, 0, vchi_instance); + if (status) { + pr_err("Failed to connect VCHI instance (status=%d)\n", status); + return -EIO; + } + + instance = kzalloc(sizeof(*instance), GFP_KERNEL); + + if (!instance) + return -ENOMEM; + + mutex_init(&instance->vchiq_mutex); + mutex_init(&instance->bulk_mutex); + + instance->bulk_scratch = vmalloc(PAGE_SIZE); + + status = mmal_context_map_init(&instance->context_map); + if (status) { + pr_err("Failed to init context map (status=%d)\n", status); + kfree(instance); + return status; + } + + params.callback_param = instance; + + status = vchi_service_open(vchi_instance, ¶ms, &instance->handle); + if (status) { + pr_err("Failed to open VCHI service connection (status=%d)\n", + status); + goto err_close_services; + } + + vchi_service_release(instance->handle); + + *out_instance = instance; + + return 0; + +err_close_services: + + vchi_service_close(instance->handle); + vfree(instance->bulk_scratch); + kfree(instance); + return -ENODEV; +} diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h new file mode 100644 index 0000000..63db053 --- /dev/null +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h @@ -0,0 +1,174 @@ +/* + * Broadcom BM2835 V4L2 driver + * + * Copyright © 2013 Raspberry Pi (Trading) Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> + * Dave Stevenson <dsteve@broadcom.com> + * Simon Mellor <simellor@broadcom.com> + * Luke Diamand <luked@broadcom.com> + * + * MMAL interface to VCHIQ message passing + */ + +#ifndef MMAL_VCHIQ_H +#define MMAL_VCHIQ_H + +#include "mmal-msg-format.h" + +#define MAX_PORT_COUNT 4 + +/* Maximum size of the format extradata. */ +#define MMAL_FORMAT_EXTRADATA_MAX_SIZE 128 + +struct vchiq_mmal_instance; + +enum vchiq_mmal_es_type { + MMAL_ES_TYPE_UNKNOWN, /**< Unknown elementary stream type */ + MMAL_ES_TYPE_CONTROL, /**< Elementary stream of control commands */ + MMAL_ES_TYPE_AUDIO, /**< Audio elementary stream */ + MMAL_ES_TYPE_VIDEO, /**< Video elementary stream */ + MMAL_ES_TYPE_SUBPICTURE /**< Sub-picture elementary stream */ +}; + +/* rectangle, used lots so it gets its own struct */ +struct vchiq_mmal_rect { + s32 x; + s32 y; + s32 width; + s32 height; +}; + +struct vchiq_mmal_port_buffer { + unsigned int num; /* number of buffers */ + u32 size; /* size of buffers */ + u32 alignment; /* alignment of buffers */ +}; + +struct vchiq_mmal_port; + +typedef void (*vchiq_mmal_buffer_cb)( + struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + int status, struct mmal_buffer *buffer, + unsigned long length, u32 mmal_flags, s64 dts, s64 pts); + +struct vchiq_mmal_port { + bool enabled; + u32 handle; + u32 type; /* port type, cached to use on port info set */ + u32 index; /* port index, cached to use on port info set */ + + /* component port belongs to, allows simple deref */ + struct vchiq_mmal_component *component; + + struct vchiq_mmal_port *connected; /* port conencted to */ + + /* buffer info */ + struct vchiq_mmal_port_buffer minimum_buffer; + struct vchiq_mmal_port_buffer recommended_buffer; + struct vchiq_mmal_port_buffer current_buffer; + + /* stream format */ + struct mmal_es_format_local format; + /* elementary stream format */ + union mmal_es_specific_format es; + + /* data buffers to fill */ + struct list_head buffers; + /* lock to serialise adding and removing buffers from list */ + spinlock_t slock; + /* count of how many buffer header refils have failed because + * there was no buffer to satisfy them + */ + int buffer_underflow; + /* callback on buffer completion */ + vchiq_mmal_buffer_cb buffer_cb; + /* callback context */ + void *cb_ctx; +}; + +struct vchiq_mmal_component { + bool enabled; + u32 handle; /* VideoCore handle for component */ + u32 inputs; /* Number of input ports */ + u32 outputs; /* Number of output ports */ + u32 clocks; /* Number of clock ports */ + struct vchiq_mmal_port control; /* control port */ + struct vchiq_mmal_port input[MAX_PORT_COUNT]; /* input ports */ + struct vchiq_mmal_port output[MAX_PORT_COUNT]; /* output ports */ + struct vchiq_mmal_port clock[MAX_PORT_COUNT]; /* clock ports */ +}; + +int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance); +int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance); + +/* Initialise a mmal component and its ports + * + */ +int vchiq_mmal_component_init( + struct vchiq_mmal_instance *instance, + const char *name, + struct vchiq_mmal_component **component_out); + +int vchiq_mmal_component_finalise( + struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component); + +int vchiq_mmal_component_enable( + struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component); + +int vchiq_mmal_component_disable( + struct vchiq_mmal_instance *instance, + struct vchiq_mmal_component *component); + +/* enable a mmal port + * + * enables a port and if a buffer callback provided enque buffer + * headers as apropriate for the port. + */ +int vchiq_mmal_port_enable( + struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + vchiq_mmal_buffer_cb buffer_cb); + +/* disable a port + * + * disable a port will dequeue any pending buffers + */ +int vchiq_mmal_port_disable(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port); + +int vchiq_mmal_port_parameter_set(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + u32 parameter, + void *value, + u32 value_size); + +int vchiq_mmal_port_parameter_get(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + u32 parameter, + void *value, + u32 *value_size); + +int vchiq_mmal_port_set_format(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port); + +int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *src, + struct vchiq_mmal_port *dst); + +int vchiq_mmal_version(struct vchiq_mmal_instance *instance, + u32 *major_out, + u32 *minor_out); + +int vchiq_mmal_submit_buffer(struct vchiq_mmal_instance *instance, + struct vchiq_mmal_port *port, + struct mmal_buffer *buf); + +#endif /* MMAL_VCHIQ_H */ diff --git a/drivers/staging/vc04_services/interface/vchi/TODO b/drivers/staging/vc04_services/interface/vchi/TODO index 03aa651..df93154 100644 --- a/drivers/staging/vc04_services/interface/vchi/TODO +++ b/drivers/staging/vc04_services/interface/vchi/TODO @@ -1,24 +1,9 @@ -1) Port to aarch64 - -This driver won't be very useful unless we also have it working on -Raspberry Pi 3. This requires, at least: - - - Figure out an alternative to the dmac_map_area() hack. - - - Decide what to use instead of dsb(). - - - Do something about (int) cast of bulk->data in - vchiq_bulk_transfer(). - - bulk->data is a bus address going across to the firmware. We know - our bus addresses are <32bit. - -2) Write a DT binding doc and get the corresponding DT node merged to +1) Write a DT binding doc and get the corresponding DT node merged to bcm2835. This will let the driver probe when enabled. -3) Import drivers using VCHI. +2) Import drivers using VCHI. VCHI is just a tool to let drivers talk to the firmware. Here are some of the ones we want: @@ -41,7 +26,7 @@ some of the ones we want: to manage these buffers as dmabufs so that we can zero-copy import camera images into vc4 for rendering/display. -4) Garbage-collect unused code +3) Garbage-collect unused code One of the reasons this driver wasn't upstreamed previously was that there's a lot code that got built that's probably unnecessary these diff --git a/drivers/staging/vc04_services/interface/vchi/vchi_cfg.h b/drivers/staging/vc04_services/interface/vchi/vchi_cfg.h index 26bc2d3..b6f42b8 100644 --- a/drivers/staging/vc04_services/interface/vchi/vchi_cfg.h +++ b/drivers/staging/vc04_services/interface/vchi/vchi_cfg.h @@ -173,7 +173,7 @@ * under the carpet. */ #if VCHI_RX_MSG_QUEUE_SIZE < (VCHI_MAX_MSG_SIZE/16 + 1) * VCHI_NUM_READ_SLOTS # undef VCHI_RX_MSG_QUEUE_SIZE -# define VCHI_RX_MSG_QUEUE_SIZE (VCHI_MAX_MSG_SIZE/16 + 1) * VCHI_NUM_READ_SLOTS +# define VCHI_RX_MSG_QUEUE_SIZE ((VCHI_MAX_MSG_SIZE/16 + 1) * VCHI_NUM_READ_SLOTS) #endif /* How many bulk transmits can we have pending. Once exhausted, vchi_bulk_queue_transmit diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index 3aeffcb..988ee61 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -37,12 +37,11 @@ #include <linux/interrupt.h> #include <linux/pagemap.h> #include <linux/dma-mapping.h> -#include <linux/version.h> #include <linux/io.h> #include <linux/platform_device.h> #include <linux/uaccess.h> +#include <linux/mm.h> #include <linux/of.h> -#include <asm/pgtable.h> #include <soc/bcm2835/raspberrypi-firmware.h> #define TOTAL_SLOTS (VCHIQ_SLOT_ZERO_SLOTS + 2 * 32) @@ -208,6 +207,7 @@ VCHIQ_STATUS_T vchiq_platform_init_state(VCHIQ_STATE_T *state) { VCHIQ_STATUS_T status = VCHIQ_SUCCESS; + state->platform_state = kzalloc(sizeof(VCHIQ_2835_ARM_STATE_T), GFP_KERNEL); ((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->inited = 1; status = vchiq_arm_init_state(state, &((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->arm_state); @@ -293,6 +293,7 @@ vchiq_dump_platform_state(void *dump_context) { char buf[80]; int len; + len = snprintf(buf, sizeof(buf), " Platform: 2835 (VC master)"); vchiq_dump(dump_context, buf, len + 1); @@ -406,7 +407,7 @@ create_pagelist(char __user *buf, size_t count, unsigned short type, dma_addr_t dma_addr; offset = ((unsigned int)(unsigned long)buf & (PAGE_SIZE - 1)); - num_pages = (count + offset + PAGE_SIZE - 1) / PAGE_SIZE; + num_pages = DIV_ROUND_UP(count + offset, PAGE_SIZE); pagelist_size = sizeof(PAGELIST_T) + (num_pages * sizeof(u32)) + @@ -591,6 +592,7 @@ free_pagelist(struct vchiq_pagelist_info *pagelistinfo, (pagelist->type - PAGELIST_READ_WITH_FRAGMENTS) * g_fragments_size; int head_bytes, tail_bytes; + head_bytes = (g_cache_line_size - pagelist->offset) & (g_cache_line_size - 1); tail_bytes = (pagelist->offset + actual) & diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index 8a0d214..e823f1d 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -48,6 +48,7 @@ #include <linux/list.h> #include <linux/of.h> #include <linux/platform_device.h> +#include <linux/compat.h> #include <soc/bcm2835/raspberrypi-firmware.h> #include "vchiq_core.h" @@ -194,8 +195,10 @@ static const char *const ioctl_names[] = { vchiq_static_assert(ARRAY_SIZE(ioctl_names) == (VCHIQ_IOC_MAX + 1)); +#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) static void dump_phys_mem(void *virt_addr, u32 num_bytes); +#endif /**************************************************************************** * @@ -210,6 +213,7 @@ add_completion(VCHIQ_INSTANCE_T instance, VCHIQ_REASON_T reason, { VCHIQ_COMPLETION_DATA_T *completion; int insert; + DEBUG_INITIALISE(g_state.local) insert = instance->completion_insert; @@ -281,6 +285,7 @@ service_callback(VCHIQ_REASON_T reason, VCHIQ_HEADER_T *header, VCHIQ_SERVICE_T *service; VCHIQ_INSTANCE_T instance; bool skip_completion = false; + DEBUG_INITIALISE(g_state.local) DEBUG_TRACE(SERVICE_CALLBACK_LINE); @@ -316,6 +321,7 @@ service_callback(VCHIQ_REASON_T reason, VCHIQ_HEADER_T *header, if ((user_service->message_available_pos - instance->completion_remove) < 0) { VCHIQ_STATUS_T status; + vchiq_log_info(vchiq_arm_log_level, "Inserting extra MESSAGE_AVAILABLE"); DEBUG_TRACE(SERVICE_CALLBACK_LINE); @@ -407,7 +413,7 @@ static void close_delivered(USER_SERVICE_T *user_service) } struct vchiq_io_copy_callback_context { - VCHIQ_ELEMENT_T *current_element; + struct vchiq_element *current_element; size_t current_element_offset; unsigned long elements_to_go; size_t current_offset; @@ -484,7 +490,7 @@ vchiq_ioc_copy_element_data( **************************************************************************/ static VCHIQ_STATUS_T vchiq_ioc_queue_message(VCHIQ_SERVICE_HANDLE_T handle, - VCHIQ_ELEMENT_T *elements, + struct vchiq_element *elements, unsigned long count) { struct vchiq_io_copy_callback_context context; @@ -520,6 +526,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) VCHIQ_SERVICE_T *service = NULL; long ret = 0; int i, rc; + DEBUG_INITIALISE(g_state.local) vchiq_log_trace(vchiq_arm_log_level, @@ -742,6 +749,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case VCHIQ_IOC_QUEUE_MESSAGE: { VCHIQ_QUEUE_MESSAGE_T args; + if (copy_from_user (&args, (const void __user *)arg, sizeof(args)) != 0) { @@ -753,9 +761,10 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if ((service != NULL) && (args.count <= MAX_ELEMENTS)) { /* Copy elements into kernel space */ - VCHIQ_ELEMENT_T elements[MAX_ELEMENTS]; + struct vchiq_element elements[MAX_ELEMENTS]; + if (copy_from_user(elements, args.elements, - args.count * sizeof(VCHIQ_ELEMENT_T)) == 0) + args.count * sizeof(struct vchiq_element)) == 0) status = vchiq_ioc_queue_message (args.handle, elements, args.count); @@ -770,6 +779,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case VCHIQ_IOC_QUEUE_BULK_RECEIVE: { VCHIQ_QUEUE_BULK_TRANSFER_T args; struct bulk_waiter_node *waiter = NULL; + VCHIQ_BULK_DIR_T dir = (cmd == VCHIQ_IOC_QUEUE_BULK_TRANSMIT) ? VCHIQ_BULK_TRANSMIT : VCHIQ_BULK_RECEIVE; @@ -797,6 +807,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) args.userdata = &waiter->bulk_waiter; } else if (args.mode == VCHIQ_BULK_MODE_WAITING) { struct list_head *pos; + mutex_lock(&instance->bulk_waiter_list_mutex); list_for_each(pos, &instance->bulk_waiter_list) { if (list_entry(pos, struct bulk_waiter_node, @@ -882,6 +893,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) instance->completion_insert) && !instance->closing) { int rc; + DEBUG_TRACE(AWAIT_COMPLETION_LINE); mutex_unlock(&instance->completion_mutex); rc = down_interruptible(&instance->insert_event); @@ -1149,6 +1161,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) args.handle, args.option, args.value); } break; +#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) case VCHIQ_IOC_DUMP_PHYS_MEM: { VCHIQ_DUMP_MEM_T args; @@ -1160,6 +1173,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } dump_phys_mem(args.virt_addr, args.num_bytes); } break; +#endif case VCHIQ_IOC_LIB_VERSION: { unsigned int lib_version = (unsigned int)arg; @@ -1219,6 +1233,491 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return ret; } +#if defined(CONFIG_COMPAT) + +struct vchiq_service_params32 { + int fourcc; + compat_uptr_t callback; + compat_uptr_t userdata; + short version; /* Increment for non-trivial changes */ + short version_min; /* Update for incompatible changes */ +}; + +struct vchiq_create_service32 { + struct vchiq_service_params32 params; + int is_open; + int is_vchi; + unsigned int handle; /* OUT */ +}; + +#define VCHIQ_IOC_CREATE_SERVICE32 \ + _IOWR(VCHIQ_IOC_MAGIC, 2, struct vchiq_create_service32) + +static long +vchiq_compat_ioctl_create_service( + struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_CREATE_SERVICE_T __user *args; + struct vchiq_create_service32 __user *ptrargs32 = + (struct vchiq_create_service32 __user *)arg; + struct vchiq_create_service32 args32; + long ret; + + args = compat_alloc_user_space(sizeof(*args)); + if (!args) + return -EFAULT; + + if (copy_from_user(&args32, + (struct vchiq_create_service32 __user *)arg, + sizeof(args32))) + return -EFAULT; + + if (put_user(args32.params.fourcc, &args->params.fourcc) || + put_user(compat_ptr(args32.params.callback), + &args->params.callback) || + put_user(compat_ptr(args32.params.userdata), + &args->params.userdata) || + put_user(args32.params.version, &args->params.version) || + put_user(args32.params.version_min, + &args->params.version_min) || + put_user(args32.is_open, &args->is_open) || + put_user(args32.is_vchi, &args->is_vchi) || + put_user(args32.handle, &args->handle)) + return -EFAULT; + + ret = vchiq_ioctl(file, VCHIQ_IOC_CREATE_SERVICE, (unsigned long)args); + + if (ret < 0) + return ret; + + if (get_user(args32.handle, &args->handle)) + return -EFAULT; + + if (copy_to_user(&ptrargs32->handle, + &args32.handle, + sizeof(args32.handle))) + return -EFAULT; + + return 0; +} + +struct vchiq_element32 { + compat_uptr_t data; + unsigned int size; +}; + +struct vchiq_queue_message32 { + unsigned int handle; + unsigned int count; + compat_uptr_t elements; +}; + +#define VCHIQ_IOC_QUEUE_MESSAGE32 \ + _IOW(VCHIQ_IOC_MAGIC, 4, struct vchiq_queue_message32) + +static long +vchiq_compat_ioctl_queue_message(struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_QUEUE_MESSAGE_T *args; + struct vchiq_element *elements; + struct vchiq_queue_message32 args32; + unsigned int count; + + if (copy_from_user(&args32, + (struct vchiq_queue_message32 __user *)arg, + sizeof(args32))) + return -EFAULT; + + args = compat_alloc_user_space(sizeof(*args) + + (sizeof(*elements) * MAX_ELEMENTS)); + + if (!args) + return -EFAULT; + + if (put_user(args32.handle, &args->handle) || + put_user(args32.count, &args->count) || + put_user(compat_ptr(args32.elements), &args->elements)) + return -EFAULT; + + if (args32.count > MAX_ELEMENTS) + return -EINVAL; + + if (args32.elements && args32.count) { + struct vchiq_element32 tempelement32[MAX_ELEMENTS]; + + elements = (struct vchiq_element __user *)(args + 1); + + if (copy_from_user(&tempelement32, + compat_ptr(args32.elements), + sizeof(tempelement32))) + return -EFAULT; + + for (count = 0; count < args32.count; count++) { + if (put_user(compat_ptr(tempelement32[count].data), + &elements[count].data) || + put_user(tempelement32[count].size, + &elements[count].size)) + return -EFAULT; + } + + if (put_user(elements, &args->elements)) + return -EFAULT; + } + + return vchiq_ioctl(file, VCHIQ_IOC_QUEUE_MESSAGE, (unsigned long)args); +} + +struct vchiq_queue_bulk_transfer32 { + unsigned int handle; + compat_uptr_t data; + unsigned int size; + compat_uptr_t userdata; + VCHIQ_BULK_MODE_T mode; +}; + +#define VCHIQ_IOC_QUEUE_BULK_TRANSMIT32 \ + _IOWR(VCHIQ_IOC_MAGIC, 5, struct vchiq_queue_bulk_transfer32) +#define VCHIQ_IOC_QUEUE_BULK_RECEIVE32 \ + _IOWR(VCHIQ_IOC_MAGIC, 6, struct vchiq_queue_bulk_transfer32) + +static long +vchiq_compat_ioctl_queue_bulk(struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_QUEUE_BULK_TRANSFER_T *args; + struct vchiq_queue_bulk_transfer32 args32; + struct vchiq_queue_bulk_transfer32 *ptrargs32 = + (struct vchiq_queue_bulk_transfer32 *)arg; + long ret; + + args = compat_alloc_user_space(sizeof(*args)); + if (!args) + return -EFAULT; + + if (copy_from_user(&args32, + (struct vchiq_queue_bulk_transfer32 __user *)arg, + sizeof(args32))) + return -EFAULT; + + if (put_user(args32.handle, &args->handle) || + put_user(compat_ptr(args32.data), &args->data) || + put_user(args32.size, &args->size) || + put_user(compat_ptr(args32.userdata), &args->userdata) || + put_user(args32.mode, &args->mode)) + return -EFAULT; + + if (cmd == VCHIQ_IOC_QUEUE_BULK_TRANSMIT32) + cmd = VCHIQ_IOC_QUEUE_BULK_TRANSMIT; + else + cmd = VCHIQ_IOC_QUEUE_BULK_RECEIVE; + + ret = vchiq_ioctl(file, cmd, (unsigned long)args); + + if (ret < 0) + return ret; + + if (get_user(args32.mode, &args->mode)) + return -EFAULT; + + if (copy_to_user(&ptrargs32->mode, + &args32.mode, + sizeof(args32.mode))) + return -EFAULT; + + return 0; +} + +struct vchiq_completion_data32 { + VCHIQ_REASON_T reason; + compat_uptr_t header; + compat_uptr_t service_userdata; + compat_uptr_t bulk_userdata; +}; + +struct vchiq_await_completion32 { + unsigned int count; + compat_uptr_t buf; + unsigned int msgbufsize; + unsigned int msgbufcount; /* IN/OUT */ + compat_uptr_t msgbufs; +}; + +#define VCHIQ_IOC_AWAIT_COMPLETION32 \ + _IOWR(VCHIQ_IOC_MAGIC, 7, struct vchiq_await_completion32) + +static long +vchiq_compat_ioctl_await_completion(struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_AWAIT_COMPLETION_T *args; + VCHIQ_COMPLETION_DATA_T *completion; + VCHIQ_COMPLETION_DATA_T completiontemp; + struct vchiq_await_completion32 args32; + struct vchiq_completion_data32 completion32; + unsigned int *msgbufcount32; + compat_uptr_t msgbuf32; + void *msgbuf; + void **msgbufptr; + long ret; + + args = compat_alloc_user_space(sizeof(*args) + + sizeof(*completion) + + sizeof(*msgbufptr)); + if (!args) + return -EFAULT; + + completion = (VCHIQ_COMPLETION_DATA_T *)(args + 1); + msgbufptr = (void __user **)(completion + 1); + + if (copy_from_user(&args32, + (struct vchiq_completion_data32 *)arg, + sizeof(args32))) + return -EFAULT; + + if (put_user(args32.count, &args->count) || + put_user(compat_ptr(args32.buf), &args->buf) || + put_user(args32.msgbufsize, &args->msgbufsize) || + put_user(args32.msgbufcount, &args->msgbufcount) || + put_user(compat_ptr(args32.msgbufs), &args->msgbufs)) + return -EFAULT; + + /* These are simple cases, so just fall into the native handler */ + if (!args32.count || !args32.buf || !args32.msgbufcount) + return vchiq_ioctl(file, + VCHIQ_IOC_AWAIT_COMPLETION, + (unsigned long)args); + + /* + * These are the more complex cases. Typical applications of this + * ioctl will use a very large count, with a very large msgbufcount. + * Since the native ioctl can asynchronously fill in the returned + * buffers and the application can in theory begin processing messages + * even before the ioctl returns, a bit of a trick is used here. + * + * By forcing both count and msgbufcount to be 1, it forces the native + * ioctl to only claim at most 1 message is available. This tricks + * the calling application into thinking only 1 message was actually + * available in the queue so like all good applications it will retry + * waiting until all the required messages are received. + * + * This trick has been tested and proven to work with vchiq_test, + * Minecraft_PI, the "hello pi" examples, and various other + * applications that are included in Raspbian. + */ + + if (copy_from_user(&msgbuf32, + compat_ptr(args32.msgbufs) + + (sizeof(compat_uptr_t) * + (args32.msgbufcount - 1)), + sizeof(msgbuf32))) + return -EFAULT; + + msgbuf = compat_ptr(msgbuf32); + + if (copy_to_user(msgbufptr, + &msgbuf, + sizeof(msgbuf))) + return -EFAULT; + + if (copy_to_user(&args->msgbufs, + &msgbufptr, + sizeof(msgbufptr))) + return -EFAULT; + + if (put_user(1U, &args->count) || + put_user(completion, &args->buf) || + put_user(1U, &args->msgbufcount)) + return -EFAULT; + + ret = vchiq_ioctl(file, + VCHIQ_IOC_AWAIT_COMPLETION, + (unsigned long)args); + + /* + * An return value of 0 here means that no messages where available + * in the message queue. In this case the native ioctl does not + * return any data to the application at all. Not even to update + * msgbufcount. This functionality needs to be kept here for + * compatibility. + * + * Of course, < 0 means that an error occurred and no data is being + * returned. + * + * Since count and msgbufcount was forced to 1, that means + * the only other possible return value is 1. Meaning that 1 message + * was available, so that multiple message case does not need to be + * handled here. + */ + if (ret <= 0) + return ret; + + if (copy_from_user(&completiontemp, completion, sizeof(*completion))) + return -EFAULT; + + completion32.reason = completiontemp.reason; + completion32.header = ptr_to_compat(completiontemp.header); + completion32.service_userdata = + ptr_to_compat(completiontemp.service_userdata); + completion32.bulk_userdata = + ptr_to_compat(completiontemp.bulk_userdata); + + if (copy_to_user(compat_ptr(args32.buf), + &completion32, + sizeof(completion32))) + return -EFAULT; + + args32.msgbufcount--; + + msgbufcount32 = + &((struct vchiq_await_completion32 __user *)arg)->msgbufcount; + + if (copy_to_user(msgbufcount32, + &args32.msgbufcount, + sizeof(args32.msgbufcount))) + return -EFAULT; + + return 1; +} + +struct vchiq_dequeue_message32 { + unsigned int handle; + int blocking; + unsigned int bufsize; + compat_uptr_t buf; +}; + +#define VCHIQ_IOC_DEQUEUE_MESSAGE32 \ + _IOWR(VCHIQ_IOC_MAGIC, 8, struct vchiq_dequeue_message32) + +static long +vchiq_compat_ioctl_dequeue_message(struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_DEQUEUE_MESSAGE_T *args; + struct vchiq_dequeue_message32 args32; + + args = compat_alloc_user_space(sizeof(*args)); + if (!args) + return -EFAULT; + + if (copy_from_user(&args32, + (struct vchiq_dequeue_message32 *)arg, + sizeof(args32))) + return -EFAULT; + + if (put_user(args32.handle, &args->handle) || + put_user(args32.blocking, &args->blocking) || + put_user(args32.bufsize, &args->bufsize) || + put_user(compat_ptr(args32.buf), &args->buf)) + return -EFAULT; + + return vchiq_ioctl(file, VCHIQ_IOC_DEQUEUE_MESSAGE, + (unsigned long)args); +} + +struct vchiq_get_config32 { + unsigned int config_size; + compat_uptr_t pconfig; +}; + +#define VCHIQ_IOC_GET_CONFIG32 \ + _IOWR(VCHIQ_IOC_MAGIC, 10, struct vchiq_get_config32) + +static long +vchiq_compat_ioctl_get_config(struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_GET_CONFIG_T *args; + struct vchiq_get_config32 args32; + + args = compat_alloc_user_space(sizeof(*args)); + if (!args) + return -EFAULT; + + if (copy_from_user(&args32, + (struct vchiq_get_config32 *)arg, + sizeof(args32))) + return -EFAULT; + + if (put_user(args32.config_size, &args->config_size) || + put_user(compat_ptr(args32.pconfig), &args->pconfig)) + return -EFAULT; + + return vchiq_ioctl(file, VCHIQ_IOC_GET_CONFIG, (unsigned long)args); +} + +#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) + +struct vchiq_dump_mem32 { + compat_uptr_t virt_addr; + u32 num_bytes; +}; + +#define VCHIQ_IOC_DUMP_PHYS_MEM32 \ + _IOW(VCHIQ_IOC_MAGIC, 15, struct vchiq_dump_mem32) + +static long +vchiq_compat_ioctl_dump_phys_mem(struct file *file, + unsigned int cmd, + unsigned long arg) +{ + VCHIQ_DUMP_MEM_T *args; + struct vchiq_dump_mem32 args32; + + args = compat_alloc_user_space(sizeof(*args)); + if (!args) + return -EFAULT; + + if (copy_from_user(&args32, + (struct vchiq_dump_mem32 *)arg, + sizeof(args32))) + return -EFAULT; + + if (put_user(compat_ptr(args32.virt_addr), &args->virt_addr) || + put_user(args32.num_bytes, &args->num_bytes)) + return -EFAULT; + + return vchiq_ioctl(file, VCHIQ_IOC_DUMP_PHYS_MEM, (unsigned long)args); +} + +#endif + +static long +vchiq_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case VCHIQ_IOC_CREATE_SERVICE32: + return vchiq_compat_ioctl_create_service(file, cmd, arg); + case VCHIQ_IOC_QUEUE_MESSAGE32: + return vchiq_compat_ioctl_queue_message(file, cmd, arg); + case VCHIQ_IOC_QUEUE_BULK_TRANSMIT32: + case VCHIQ_IOC_QUEUE_BULK_RECEIVE32: + return vchiq_compat_ioctl_queue_bulk(file, cmd, arg); + case VCHIQ_IOC_AWAIT_COMPLETION32: + return vchiq_compat_ioctl_await_completion(file, cmd, arg); + case VCHIQ_IOC_DEQUEUE_MESSAGE32: + return vchiq_compat_ioctl_dequeue_message(file, cmd, arg); + case VCHIQ_IOC_GET_CONFIG32: + return vchiq_compat_ioctl_get_config(file, cmd, arg); +#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) + case VCHIQ_IOC_DUMP_PHYS_MEM32: + return vchiq_compat_ioctl_dump_phys_mem(file, cmd, arg); +#endif + default: + return vchiq_ioctl(file, cmd, arg); + } +} + +#endif + /**************************************************************************** * * vchiq_open @@ -1229,6 +1728,7 @@ static int vchiq_open(struct inode *inode, struct file *file) { int dev = iminor(inode) & 0x0f; + vchiq_log_info(vchiq_arm_log_level, "vchiq_open"); switch (dev) { case VCHIQ_MINOR: { @@ -1284,6 +1784,7 @@ vchiq_release(struct inode *inode, struct file *file) { int dev = iminor(inode) & 0x0f; int ret = 0; + switch (dev) { case VCHIQ_MINOR: { VCHIQ_INSTANCE_T instance = file->private_data; @@ -1365,6 +1866,7 @@ vchiq_release(struct inode *inode, struct file *file) instance->completion_insert) { VCHIQ_COMPLETION_DATA_T *completion; VCHIQ_SERVICE_T *service; + completion = &instance->completions[ instance->completion_remove & (MAX_COMPLETIONS - 1)]; @@ -1387,9 +1889,11 @@ vchiq_release(struct inode *inode, struct file *file) { struct list_head *pos, *next; + list_for_each_safe(pos, next, &instance->bulk_waiter_list) { struct bulk_waiter_node *waiter; + waiter = list_entry(pos, struct bulk_waiter_node, list); @@ -1430,8 +1934,10 @@ vchiq_dump(void *dump_context, const char *str, int len) if (context->actual < context->space) { int copy_bytes; + if (context->offset > 0) { int skip_bytes = min(len, (int)context->offset); + str += skip_bytes; len -= skip_bytes; context->offset -= skip_bytes; @@ -1452,6 +1958,7 @@ vchiq_dump(void *dump_context, const char *str, int len) ** carriage return. */ if ((len == 0) && (str[copy_bytes - 1] == '\0')) { char cr = '\n'; + if (copy_to_user(context->buf + context->actual - 1, &cr, 1)) context->actual = -EFAULT; @@ -1547,6 +2054,8 @@ vchiq_dump_platform_service_state(void *dump_context, VCHIQ_SERVICE_T *service) * ***************************************************************************/ +#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP) + static void dump_phys_mem(void *virt_addr, u32 num_bytes) { @@ -1570,10 +2079,10 @@ dump_phys_mem(void *virt_addr, u32 num_bytes) offset = (int)(long)virt_addr & (PAGE_SIZE - 1); end_offset = (int)(long)end_virt_addr & (PAGE_SIZE - 1); - num_pages = (offset + num_bytes + PAGE_SIZE - 1) / PAGE_SIZE; + num_pages = DIV_ROUND_UP(offset + num_bytes, PAGE_SIZE); pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL); - if (pages == NULL) { + if (!pages) { vchiq_log_error(vchiq_arm_log_level, "Unable to allocation memory for %d pages\n", num_pages); @@ -1599,17 +2108,14 @@ dump_phys_mem(void *virt_addr, u32 num_bytes) } while (offset < end_offset) { - int page_offset = offset % PAGE_SIZE; - page_idx = offset / PAGE_SIZE; + page_idx = offset / PAGE_SIZE; if (page_idx != prev_idx) { - if (page != NULL) kunmap(page); page = pages[page_idx]; kmapped_virt_ptr = kmap(page); - prev_idx = page_idx; } @@ -1632,6 +2138,8 @@ out: kfree(pages); } +#endif + /**************************************************************************** * * vchiq_read @@ -1643,6 +2151,7 @@ vchiq_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { DUMP_CONTEXT_T context; + context.buf = buf; context.actual = 0; context.space = count; @@ -1673,6 +2182,9 @@ static const struct file_operations vchiq_fops = { .owner = THIS_MODULE, .unlocked_ioctl = vchiq_ioctl, +#if defined(CONFIG_COMPAT) + .compat_ioctl = vchiq_compat_ioctl, +#endif .open = vchiq_open, .release = vchiq_release, .read = vchiq_read @@ -1686,6 +2198,7 @@ int vchiq_videocore_wanted(VCHIQ_STATE_T *state) { VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + if (!arm_state) /* autosuspend not supported - always return wanted */ return 1; @@ -1753,6 +2266,7 @@ vchiq_keepalive_thread_func(void *v) while (1) { long rc = 0, uc = 0; + if (wait_for_completion_interruptible(&arm_state->ka_evt) != 0) { vchiq_log_error(vchiq_susp_log_level, @@ -1982,6 +2496,7 @@ static inline int need_resume(VCHIQ_STATE_T *state) { VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + return (arm_state->vc_suspend_state > VC_SUSPEND_IDLE) && (arm_state->vc_resume_state < VC_RESUME_REQUESTED) && vchiq_videocore_wanted(state); @@ -2155,6 +2670,7 @@ output_timeout_error(VCHIQ_STATE_T *state) } for (i = 0; i < active_services; i++) { VCHIQ_SERVICE_T *service_ptr = state->services[i]; + if (service_ptr && service_ptr->service_use_count && (service_ptr->srvstate != VCHIQ_SRVSTATE_FREE)) { snprintf(err, sizeof(err), " %c%c%c%c(%d) service has " @@ -2502,6 +3018,7 @@ vchiq_use_internal(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T *service, if (ret == VCHIQ_SUCCESS) { VCHIQ_STATUS_T status = VCHIQ_SUCCESS; long ack_cnt = atomic_xchg(&arm_state->ka_use_ack_count, 0); + while (ack_cnt && (status == VCHIQ_SUCCESS)) { /* Send the use notify to videocore */ status = vchiq_send_remote_use_active(state); @@ -2584,6 +3101,7 @@ void vchiq_on_remote_use(VCHIQ_STATE_T *state) { VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + vchiq_log_trace(vchiq_susp_log_level, "%s", __func__); atomic_inc(&arm_state->ka_use_count); complete(&arm_state->ka_evt); @@ -2593,6 +3111,7 @@ void vchiq_on_remote_release(VCHIQ_STATE_T *state) { VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + vchiq_log_trace(vchiq_susp_log_level, "%s", __func__); atomic_inc(&arm_state->ka_release_count); complete(&arm_state->ka_evt); @@ -2621,6 +3140,7 @@ vchiq_instance_get_use_count(VCHIQ_INSTANCE_T instance) { VCHIQ_SERVICE_T *service; int use_count = 0, i; + i = 0; while ((service = next_service_by_instance(instance->state, instance, &i)) != NULL) { @@ -2647,6 +3167,7 @@ vchiq_instance_set_trace(VCHIQ_INSTANCE_T instance, int trace) { VCHIQ_SERVICE_T *service; int i; + i = 0; while ((service = next_service_by_instance(instance->state, instance, &i)) != NULL) { @@ -2660,6 +3181,7 @@ static void suspend_timer_callback(unsigned long context) { VCHIQ_STATE_T *state = (VCHIQ_STATE_T *)context; VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + if (!arm_state) goto out; vchiq_log_info(vchiq_susp_log_level, @@ -2674,6 +3196,7 @@ vchiq_use_service_no_resume(VCHIQ_SERVICE_HANDLE_T handle) { VCHIQ_STATUS_T ret = VCHIQ_ERROR; VCHIQ_SERVICE_T *service = find_service_by_handle(handle); + if (service) { ret = vchiq_use_internal(service->state, service, USE_TYPE_SERVICE_NO_RESUME); @@ -2687,6 +3210,7 @@ vchiq_use_service(VCHIQ_SERVICE_HANDLE_T handle) { VCHIQ_STATUS_T ret = VCHIQ_ERROR; VCHIQ_SERVICE_T *service = find_service_by_handle(handle); + if (service) { ret = vchiq_use_internal(service->state, service, USE_TYPE_SERVICE); @@ -2700,6 +3224,7 @@ vchiq_release_service(VCHIQ_SERVICE_HANDLE_T handle) { VCHIQ_STATUS_T ret = VCHIQ_ERROR; VCHIQ_SERVICE_T *service = find_service_by_handle(handle); + if (service) { ret = vchiq_release_internal(service->state, service); unlock_service(service); @@ -2744,6 +3269,7 @@ vchiq_dump_service_use_state(VCHIQ_STATE_T *state) for (i = 0; (i < active_services) && (j < local_max_services); i++) { VCHIQ_SERVICE_T *service_ptr = state->services[i]; + if (!service_ptr) continue; @@ -2832,12 +3358,14 @@ void vchiq_platform_conn_state_changed(VCHIQ_STATE_T *state, VCHIQ_CONNSTATE_T oldstate, VCHIQ_CONNSTATE_T newstate) { VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state); + vchiq_log_info(vchiq_susp_log_level, "%d: %s->%s", state->id, get_conn_state_name(oldstate), get_conn_state_name(newstate)); if (state->conn_state == VCHIQ_CONNSTATE_CONNECTED) { write_lock_bh(&arm_state->susp_res_lock); if (!arm_state->first_connect) { char threadname[16]; + arm_state->first_connect = 1; write_unlock_bh(&arm_state->susp_res_lock); snprintf(threadname, sizeof(threadname), "vchiq-keep/%d", @@ -2962,6 +3490,6 @@ static struct platform_driver vchiq_driver = { }; module_platform_driver(vchiq_driver); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("Videocore VCHIQ driver"); MODULE_AUTHOR("Broadcom Corporation"); diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index d587097..4f9e738 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -192,6 +192,7 @@ VCHIQ_SERVICE_T * find_service_by_port(VCHIQ_STATE_T *state, int localport) { VCHIQ_SERVICE_T *service = NULL; + if ((unsigned int)localport <= VCHIQ_PORT_MAX) { spin_lock(&service_spinlock); service = state->services[localport]; @@ -268,6 +269,7 @@ next_service_by_instance(VCHIQ_STATE_T *state, VCHIQ_INSTANCE_T instance, spin_lock(&service_spinlock); while (idx < state->unused_service) { VCHIQ_SERVICE_T *srv = state->services[idx++]; + if (srv && (srv->srvstate != VCHIQ_SRVSTATE_FREE) && (srv->instance == instance)) { service = srv; @@ -381,6 +383,7 @@ make_service_callback(VCHIQ_SERVICE_T *service, VCHIQ_REASON_T reason, VCHIQ_HEADER_T *header, void *bulk_userdata) { VCHIQ_STATUS_T status; + vchiq_log_trace(vchiq_core_log_level, "%d: callback:%d (%s, %pK, %pK)", service->state->id, service->localport, reason_names[reason], header, bulk_userdata); @@ -399,6 +402,7 @@ inline void vchiq_set_conn_state(VCHIQ_STATE_T *state, VCHIQ_CONNSTATE_T newstate) { VCHIQ_CONNSTATE_T oldstate = state->conn_state; + vchiq_log_info(vchiq_core_log_level, "%d: %s->%s", state->id, conn_state_names[oldstate], conn_state_names[newstate]); @@ -485,6 +489,7 @@ get_listening_service(VCHIQ_STATE_T *state, int fourcc) for (i = 0; i < state->unused_service; i++) { VCHIQ_SERVICE_T *service = state->services[i]; + if (service && (service->public_fourcc == fourcc) && ((service->srvstate == VCHIQ_SRVSTATE_LISTENING) || @@ -503,8 +508,10 @@ static VCHIQ_SERVICE_T * get_connected_service(VCHIQ_STATE_T *state, unsigned int port) { int i; + for (i = 0; i < state->unused_service; i++) { VCHIQ_SERVICE_T *service = state->services[i]; + if (service && (service->srvstate == VCHIQ_SRVSTATE_OPEN) && (service->remoteport == port)) { lock_service(service); @@ -645,11 +652,13 @@ process_free_queue(VCHIQ_STATE_T *state) VCHIQ_HEADER_T *header = (VCHIQ_HEADER_T *)(data + pos); int msgid = header->msgid; + if (VCHIQ_MSG_TYPE(msgid) == VCHIQ_MSG_DATA) { int port = VCHIQ_MSG_SRCPORT(msgid); VCHIQ_SERVICE_QUOTA_T *service_quota = &state->service_quotas[port]; int count; + spin_lock("a_spinlock); count = service_quota->message_use_count; if (count > 0) @@ -719,6 +728,7 @@ process_free_queue(VCHIQ_STATE_T *state) if (data_found) { int count; + spin_lock("a_spinlock); count = state->data_use_count; if (count > 0) @@ -745,9 +755,7 @@ memcpy_copy_callback( void *context, void *dest, size_t offset, size_t maxsize) { - void *src = context; - - memcpy(dest + offset, src + offset, maxsize); + memcpy(dest + offset, context + offset, maxsize); return maxsize; } @@ -1059,6 +1067,7 @@ queue_message_sync(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T *service, { int oldmsgid = header->msgid; + if (oldmsgid != VCHIQ_MSGID_PADDING) vchiq_log_error(vchiq_core_log_level, "%d: qms - msgid %x, not PADDING", @@ -1143,6 +1152,7 @@ release_slot(VCHIQ_STATE_T *state, VCHIQ_SLOT_INFO_T *slot_info, if (header) { int msgid = header->msgid; + if (((msgid & VCHIQ_MSGID_CLAIMED) == 0) || (service && service->closing)) { mutex_unlock(&state->recycle_mutex); @@ -1252,6 +1262,7 @@ notify_bulks(VCHIQ_SERVICE_T *service, VCHIQ_BULK_QUEUE_T *queue, } if (bulk->mode == VCHIQ_BULK_MODE_BLOCKING) { struct bulk_waiter *waiter; + spin_lock(&bulk_waiter_spinlock); waiter = bulk->userdata; if (waiter) { @@ -1301,6 +1312,7 @@ poll_services(VCHIQ_STATE_T *state) for (group = 0; group < BITSET_SIZE(state->unused_service); group++) { u32 flags; + flags = atomic_xchg(&state->poll_services[group], 0); for (i = 0; flags; i++) { if (flags & (1 << i)) { @@ -1308,6 +1320,7 @@ poll_services(VCHIQ_STATE_T *state) find_service_by_port(state, (group<<5) + i); u32 service_flags; + flags &= ~(1 << i); if (!service) continue; @@ -1421,6 +1434,7 @@ static void abort_outstanding_bulks(VCHIQ_SERVICE_T *service, VCHIQ_BULK_QUEUE_T *queue) { int is_tx = (queue == &service->bulk_tx); + vchiq_log_trace(vchiq_core_log_level, "%d: aob:%d %cx - li=%x ri=%x p=%x", service->state->id, service->localport, is_tx ? 't' : 'r', @@ -1484,6 +1498,7 @@ static void resume_bulks(VCHIQ_STATE_T *state) { int i; + if (unlikely(atomic_dec_return(&pause_bulks_count) != 0)) { WARN_ON_ONCE(1); atomic_set(&pause_bulks_count, 0); @@ -1507,6 +1522,7 @@ resume_bulks(VCHIQ_STATE_T *state) VCHIQ_SERVICE_T *service = state->services[i]; int resolved_rx = 0; int resolved_tx = 0; + if (!service || (service->srvstate != VCHIQ_SRVSTATE_OPEN)) continue; @@ -1550,6 +1566,7 @@ parse_open(VCHIQ_STATE_T *state, VCHIQ_HEADER_T *header) /* A matching service exists */ short version = payload->version; short version_min = payload->version_min; + if ((service->version < version_min) || (version < service->version_min)) { /* Version mismatch */ @@ -1651,6 +1668,7 @@ parse_rx_slots(VCHIQ_STATE_T *state) VCHIQ_SHARED_STATE_T *remote = state->remote; VCHIQ_SERVICE_T *service = NULL; int tx_pos; + DEBUG_INITIALISE(state->local) tx_pos = remote->tx_pos; @@ -1664,6 +1682,7 @@ parse_rx_slots(VCHIQ_STATE_T *state) DEBUG_TRACE(PARSE_LINE); if (!state->rx_data) { int rx_index; + WARN_ON(!((state->rx_pos & VCHIQ_SLOT_MASK) == 0)); rx_index = remote->slot_queue[ SLOT_QUEUE_INDEX_FROM_POS(state->rx_pos) & @@ -1841,6 +1860,7 @@ parse_rx_slots(VCHIQ_STATE_T *state) case VCHIQ_MSG_BULK_RX: case VCHIQ_MSG_BULK_TX: { VCHIQ_BULK_QUEUE_T *queue; + WARN_ON(!state->is_master); queue = (type == VCHIQ_MSG_BULK_RX) ? &service->bulk_tx : &service->bulk_rx; @@ -2054,6 +2074,7 @@ slot_handler_func(void *v) { VCHIQ_STATE_T *state = (VCHIQ_STATE_T *) v; VCHIQ_SHARED_STATE_T *local = state->local; + DEBUG_INITIALISE(local) while (1) { @@ -2553,131 +2574,126 @@ vchiq_add_service_internal(VCHIQ_STATE_T *state, VCHIQ_INSTANCE_T instance, VCHIQ_USERDATA_TERM_T userdata_term) { VCHIQ_SERVICE_T *service; + VCHIQ_SERVICE_T **pservice = NULL; + VCHIQ_SERVICE_QUOTA_T *service_quota; + int i; service = kmalloc(sizeof(VCHIQ_SERVICE_T), GFP_KERNEL); - if (service) { - service->base.fourcc = params->fourcc; - service->base.callback = params->callback; - service->base.userdata = params->userdata; - service->handle = VCHIQ_SERVICE_HANDLE_INVALID; - service->ref_count = 1; - service->srvstate = VCHIQ_SRVSTATE_FREE; - service->userdata_term = userdata_term; - service->localport = VCHIQ_PORT_FREE; - service->remoteport = VCHIQ_PORT_FREE; - - service->public_fourcc = (srvstate == VCHIQ_SRVSTATE_OPENING) ? - VCHIQ_FOURCC_INVALID : params->fourcc; - service->client_id = 0; - service->auto_close = 1; - service->sync = 0; - service->closing = 0; - service->trace = 0; - atomic_set(&service->poll_flags, 0); - service->version = params->version; - service->version_min = params->version_min; - service->state = state; - service->instance = instance; - service->service_use_count = 0; - init_bulk_queue(&service->bulk_tx); - init_bulk_queue(&service->bulk_rx); - sema_init(&service->remove_event, 0); - sema_init(&service->bulk_remove_event, 0); - mutex_init(&service->bulk_mutex); - memset(&service->stats, 0, sizeof(service->stats)); - } else { - vchiq_log_error(vchiq_core_log_level, - "Out of memory"); - } - - if (service) { - VCHIQ_SERVICE_T **pservice = NULL; - int i; - - /* Although it is perfectly possible to use service_spinlock - ** to protect the creation of services, it is overkill as it - ** disables interrupts while the array is searched. - ** The only danger is of another thread trying to create a - ** service - service deletion is safe. - ** Therefore it is preferable to use state->mutex which, - ** although slower to claim, doesn't block interrupts while - ** it is held. - */ - - mutex_lock(&state->mutex); - - /* Prepare to use a previously unused service */ - if (state->unused_service < VCHIQ_MAX_SERVICES) - pservice = &state->services[state->unused_service]; - - if (srvstate == VCHIQ_SRVSTATE_OPENING) { - for (i = 0; i < state->unused_service; i++) { - VCHIQ_SERVICE_T *srv = state->services[i]; - if (!srv) { - pservice = &state->services[i]; - break; - } - } - } else { - for (i = (state->unused_service - 1); i >= 0; i--) { - VCHIQ_SERVICE_T *srv = state->services[i]; - if (!srv) - pservice = &state->services[i]; - else if ((srv->public_fourcc == params->fourcc) - && ((srv->instance != instance) || - (srv->base.callback != - params->callback))) { - /* There is another server using this - ** fourcc which doesn't match. */ - pservice = NULL; - break; - } + if (!service) + return service; + + service->base.fourcc = params->fourcc; + service->base.callback = params->callback; + service->base.userdata = params->userdata; + service->handle = VCHIQ_SERVICE_HANDLE_INVALID; + service->ref_count = 1; + service->srvstate = VCHIQ_SRVSTATE_FREE; + service->userdata_term = userdata_term; + service->localport = VCHIQ_PORT_FREE; + service->remoteport = VCHIQ_PORT_FREE; + + service->public_fourcc = (srvstate == VCHIQ_SRVSTATE_OPENING) ? + VCHIQ_FOURCC_INVALID : params->fourcc; + service->client_id = 0; + service->auto_close = 1; + service->sync = 0; + service->closing = 0; + service->trace = 0; + atomic_set(&service->poll_flags, 0); + service->version = params->version; + service->version_min = params->version_min; + service->state = state; + service->instance = instance; + service->service_use_count = 0; + init_bulk_queue(&service->bulk_tx); + init_bulk_queue(&service->bulk_rx); + sema_init(&service->remove_event, 0); + sema_init(&service->bulk_remove_event, 0); + mutex_init(&service->bulk_mutex); + memset(&service->stats, 0, sizeof(service->stats)); + + /* Although it is perfectly possible to use service_spinlock + ** to protect the creation of services, it is overkill as it + ** disables interrupts while the array is searched. + ** The only danger is of another thread trying to create a + ** service - service deletion is safe. + ** Therefore it is preferable to use state->mutex which, + ** although slower to claim, doesn't block interrupts while + ** it is held. + */ + + mutex_lock(&state->mutex); + + /* Prepare to use a previously unused service */ + if (state->unused_service < VCHIQ_MAX_SERVICES) + pservice = &state->services[state->unused_service]; + + if (srvstate == VCHIQ_SRVSTATE_OPENING) { + for (i = 0; i < state->unused_service; i++) { + VCHIQ_SERVICE_T *srv = state->services[i]; + + if (!srv) { + pservice = &state->services[i]; + break; } } - - if (pservice) { - service->localport = (pservice - state->services); - if (!handle_seq) - handle_seq = VCHIQ_MAX_STATES * - VCHIQ_MAX_SERVICES; - service->handle = handle_seq | - (state->id * VCHIQ_MAX_SERVICES) | - service->localport; - handle_seq += VCHIQ_MAX_STATES * VCHIQ_MAX_SERVICES; - *pservice = service; - if (pservice == &state->services[state->unused_service]) - state->unused_service++; - } - - mutex_unlock(&state->mutex); - - if (!pservice) { - kfree(service); - service = NULL; + } else { + for (i = (state->unused_service - 1); i >= 0; i--) { + VCHIQ_SERVICE_T *srv = state->services[i]; + + if (!srv) + pservice = &state->services[i]; + else if ((srv->public_fourcc == params->fourcc) + && ((srv->instance != instance) || + (srv->base.callback != + params->callback))) { + /* There is another server using this + ** fourcc which doesn't match. */ + pservice = NULL; + break; + } } } - if (service) { - VCHIQ_SERVICE_QUOTA_T *service_quota = - &state->service_quotas[service->localport]; - service_quota->slot_quota = state->default_slot_quota; - service_quota->message_quota = state->default_message_quota; - if (service_quota->slot_use_count == 0) - service_quota->previous_tx_index = - SLOT_QUEUE_INDEX_FROM_POS(state->local_tx_pos) - - 1; + if (pservice) { + service->localport = (pservice - state->services); + if (!handle_seq) + handle_seq = VCHIQ_MAX_STATES * + VCHIQ_MAX_SERVICES; + service->handle = handle_seq | + (state->id * VCHIQ_MAX_SERVICES) | + service->localport; + handle_seq += VCHIQ_MAX_STATES * VCHIQ_MAX_SERVICES; + *pservice = service; + if (pservice == &state->services[state->unused_service]) + state->unused_service++; + } - /* Bring this service online */ - vchiq_set_service_state(service, srvstate); + mutex_unlock(&state->mutex); - vchiq_log_info(vchiq_core_msg_log_level, - "%s Service %c%c%c%c SrcPort:%d", - (srvstate == VCHIQ_SRVSTATE_OPENING) - ? "Open" : "Add", - VCHIQ_FOURCC_AS_4CHARS(params->fourcc), - service->localport); + if (!pservice) { + kfree(service); + return NULL; } + service_quota = &state->service_quotas[service->localport]; + service_quota->slot_quota = state->default_slot_quota; + service_quota->message_quota = state->default_message_quota; + if (service_quota->slot_use_count == 0) + service_quota->previous_tx_index = + SLOT_QUEUE_INDEX_FROM_POS(state->local_tx_pos) + - 1; + + /* Bring this service online */ + vchiq_set_service_state(service, srvstate); + + vchiq_log_info(vchiq_core_msg_log_level, + "%s Service %c%c%c%c SrcPort:%d", + (srvstate == VCHIQ_SRVSTATE_OPENING) + ? "Open" : "Add", + VCHIQ_FOURCC_AS_4CHARS(params->fourcc), + service->localport); + /* Don't unlock the service - leave it with a ref_count of 1. */ return service; @@ -2766,6 +2782,7 @@ release_service_messages(VCHIQ_SERVICE_T *service) (VCHIQ_HEADER_T *)(data + pos); int msgid = header->msgid; int port = VCHIQ_MSG_DSTPORT(msgid); + if ((port == service->localport) && (msgid & VCHIQ_MSGID_CLAIMED)) { vchiq_log_info(vchiq_core_log_level, @@ -3498,6 +3515,7 @@ vchiq_release_message(VCHIQ_SERVICE_HANDLE_T handle, VCHIQ_HEADER_T *header) if ((slot_index >= remote->slot_first) && (slot_index <= remote->slot_last)) { int msgid = header->msgid; + if (msgid & VCHIQ_MSGID_CLAIMED) { VCHIQ_SLOT_INFO_T *slot_info = SLOT_INFO_FROM_INDEX(state, slot_index); @@ -3656,9 +3674,9 @@ vchiq_dump_shared_state(void *dump_context, VCHIQ_STATE_T *state, "COMPLETION_QUEUE_FULL_COUNT" }; int i; - char buf[80]; int len; + len = snprintf(buf, sizeof(buf), " %s: slots %d-%d tx_pos=%x recycle=%x", label, shared->slot_first, shared->slot_last, @@ -3762,9 +3780,11 @@ vchiq_dump_service_state(void *dump_context, VCHIQ_SERVICE_T *service) &service->state->service_quotas[service->localport]; int fourcc = service->base.fourcc; int tx_pending, rx_pending; + if (service->remoteport != VCHIQ_PORT_FREE) { int len2 = snprintf(remoteport, sizeof(remoteport), "%u", service->remoteport); + if (service->public_fourcc != VCHIQ_FOURCC_INVALID) snprintf(remoteport + len2, sizeof(remoteport) - len2, @@ -3866,6 +3886,7 @@ vchiq_loud_error_footer(void) VCHIQ_STATUS_T vchiq_send_remote_use(VCHIQ_STATE_T *state) { VCHIQ_STATUS_T status = VCHIQ_RETRY; + if (state->conn_state != VCHIQ_CONNSTATE_DISCONNECTED) status = queue_message(state, NULL, VCHIQ_MAKE_MSG(VCHIQ_MSG_REMOTE_USE, 0, 0), @@ -3876,6 +3897,7 @@ VCHIQ_STATUS_T vchiq_send_remote_use(VCHIQ_STATE_T *state) VCHIQ_STATUS_T vchiq_send_remote_release(VCHIQ_STATE_T *state) { VCHIQ_STATUS_T status = VCHIQ_RETRY; + if (state->conn_state != VCHIQ_CONNSTATE_DISCONNECTED) status = queue_message(state, NULL, VCHIQ_MAKE_MSG(VCHIQ_MSG_REMOTE_RELEASE, 0, 0), @@ -3886,6 +3908,7 @@ VCHIQ_STATUS_T vchiq_send_remote_release(VCHIQ_STATE_T *state) VCHIQ_STATUS_T vchiq_send_remote_use_active(VCHIQ_STATE_T *state) { VCHIQ_STATUS_T status = VCHIQ_RETRY; + if (state->conn_state != VCHIQ_CONNSTATE_DISCONNECTED) status = queue_message(state, NULL, VCHIQ_MAKE_MSG(VCHIQ_MSG_REMOTE_USE_ACTIVE, 0, 0), diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c index f07cd44..9367a9a 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c @@ -81,9 +81,7 @@ static struct vchiq_debugfs_log_entry vchiq_debugfs_log_entries[] = { { "susp", &vchiq_susp_log_level }, { "arm", &vchiq_arm_log_level }, }; -static int n_log_entries = - sizeof(vchiq_debugfs_log_entries)/sizeof(vchiq_debugfs_log_entries[0]); - +static int n_log_entries = ARRAY_SIZE(vchiq_debugfs_log_entries); static struct dentry *vchiq_clients_top(void); static struct dentry *vchiq_debugfs_top(void); @@ -167,6 +165,7 @@ static int vchiq_debugfs_create_log_entries(struct dentry *top) struct dentry *dir; size_t i; int ret = 0; + dir = debugfs_create_dir("log", vchiq_debugfs_top()); if (!dir) return -ENOMEM; @@ -174,6 +173,7 @@ static int vchiq_debugfs_create_log_entries(struct dentry *top) for (i = 0; i < n_log_entries; i++) { void *levp = (void *)vchiq_debugfs_log_entries[i].plevel; + dir = debugfs_create_file(vchiq_debugfs_log_entries[i].name, 0644, debugfs_info.log_categories, @@ -312,6 +312,7 @@ fail_top: void vchiq_debugfs_remove_instance(VCHIQ_INSTANCE_T instance) { VCHIQ_DEBUGFS_NODE_T *node = vchiq_instance_get_debugfs_node(instance); + debugfs_remove_recursive(node->dentry); } diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_if.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_if.h index 377e8e4..0e27085 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_if.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_if.h @@ -88,10 +88,10 @@ typedef struct vchiq_header_struct { char data[0]; /* message */ } VCHIQ_HEADER_T; -typedef struct { +struct vchiq_element { const void *data; unsigned int size; -} VCHIQ_ELEMENT_T; +}; typedef unsigned int VCHIQ_SERVICE_HANDLE_T; diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h index 6137ae9..9f85995 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h @@ -50,7 +50,7 @@ typedef struct { typedef struct { unsigned int handle; unsigned int count; - const VCHIQ_ELEMENT_T *elements; + const struct vchiq_element *elements; } VCHIQ_QUEUE_MESSAGE_T; typedef struct { diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c index 4317c06..34f746d 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c @@ -147,9 +147,11 @@ VCHIQ_STATUS_T vchiq_shutdown(VCHIQ_INSTANCE_T instance) if (status == VCHIQ_SUCCESS) { struct list_head *pos, *next; + list_for_each_safe(pos, next, &instance->bulk_waiter_list) { struct bulk_waiter_node *waiter; + waiter = list_entry(pos, struct bulk_waiter_node, list); @@ -406,6 +408,7 @@ vchiq_blocking_bulk_transfer(VCHIQ_SERVICE_HANDLE_T handle, void *data, if (waiter) { VCHIQ_BULK_T *bulk = waiter->bulk_waiter.bulk; + if (bulk) { /* This thread has an outstanding bulk transfer. */ if ((bulk->data != data) || @@ -435,6 +438,7 @@ vchiq_blocking_bulk_transfer(VCHIQ_SERVICE_HANDLE_T handle, void *data, if ((status != VCHIQ_RETRY) || fatal_signal_pending(current) || !waiter->bulk_waiter.bulk) { VCHIQ_BULK_T *bulk = waiter->bulk_waiter.bulk; + if (bulk) { /* Cancel the signal when the transfer ** completes. */ diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_memdrv.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_memdrv.h index dd43458..c233b86 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_memdrv.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_memdrv.h @@ -41,22 +41,10 @@ /* ---- Constants and Types ---------------------------------------------- */ -typedef struct { - void *arm_shared_mem_virt; - dma_addr_t arm_shared_mem_phys; - size_t arm_shared_mem_size; - - void *vc_shared_mem_virt; - dma_addr_t vc_shared_mem_phys; - size_t vc_shared_mem_size; -} VCHIQ_SHARED_MEM_INFO_T; - /* ---- Variable Externs ------------------------------------------------- */ /* ---- Function Prototypes ---------------------------------------------- */ -void vchiq_get_shared_mem_info(VCHIQ_SHARED_MEM_INFO_T *info); - VCHIQ_STATUS_T vchiq_memdrv_initialise(void); VCHIQ_STATUS_T vchiq_userdrv_create_instance( diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h index 12c304c..926c247 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h @@ -34,9 +34,6 @@ #ifndef VCHIQ_PAGELIST_H #define VCHIQ_PAGELIST_H -#ifndef PAGE_SIZE -#define PAGE_SIZE 4096 -#endif #define CACHE_LINE_SIZE 32 #define PAGELIST_WRITE 0 #define PAGELIST_READ 1 diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c index 48984ab..8af95fc 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c @@ -556,6 +556,7 @@ EXPORT_SYMBOL(vchi_connect); int32_t vchi_disconnect(VCHI_INSTANCE_T instance_handle) { VCHIQ_INSTANCE_T instance = (VCHIQ_INSTANCE_T)instance_handle; + return vchiq_status_to_vchi(vchiq_shutdown(instance)); } EXPORT_SYMBOL(vchi_disconnect); @@ -733,6 +734,7 @@ int32_t vchi_service_close(const VCHI_SERVICE_HANDLE_T handle) { int32_t ret = -1; SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle; + if (service) { VCHIQ_STATUS_T status = vchiq_close_service(service->handle); if (status == VCHIQ_SUCCESS) { @@ -750,8 +752,10 @@ int32_t vchi_service_destroy(const VCHI_SERVICE_HANDLE_T handle) { int32_t ret = -1; SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle; + if (service) { VCHIQ_STATUS_T status = vchiq_remove_service(service->handle); + if (status == VCHIQ_SUCCESS) { service_free(service); service = NULL; @@ -770,6 +774,7 @@ int32_t vchi_service_set_option(const VCHI_SERVICE_HANDLE_T handle, int32_t ret = -1; SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle; VCHIQ_SERVICE_OPTION_T vchiq_option; + switch (option) { case VCHI_SERVICE_OPTION_TRACE: vchiq_option = VCHIQ_SERVICE_OPTION_TRACE; @@ -797,6 +802,7 @@ int32_t vchi_get_peer_version(const VCHI_SERVICE_HANDLE_T handle, short *peer_ve { int32_t ret = -1; SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle; + if (service) { VCHIQ_STATUS_T status; @@ -808,54 +814,6 @@ int32_t vchi_get_peer_version(const VCHI_SERVICE_HANDLE_T handle, short *peer_ve } EXPORT_SYMBOL(vchi_get_peer_version); -/* ---------------------------------------------------------------------- - * read a uint32_t from buffer. - * network format is defined to be little endian - * -------------------------------------------------------------------- */ -uint32_t -vchi_readbuf_uint32(const void *_ptr) -{ - const unsigned char *ptr = _ptr; - return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16) | (ptr[3] << 24); -} - -/* ---------------------------------------------------------------------- - * write a uint32_t to buffer. - * network format is defined to be little endian - * -------------------------------------------------------------------- */ -void -vchi_writebuf_uint32(void *_ptr, uint32_t value) -{ - unsigned char *ptr = _ptr; - ptr[0] = (unsigned char)((value >> 0) & 0xFF); - ptr[1] = (unsigned char)((value >> 8) & 0xFF); - ptr[2] = (unsigned char)((value >> 16) & 0xFF); - ptr[3] = (unsigned char)((value >> 24) & 0xFF); -} - -/* ---------------------------------------------------------------------- - * read a uint16_t from buffer. - * network format is defined to be little endian - * -------------------------------------------------------------------- */ -uint16_t -vchi_readbuf_uint16(const void *_ptr) -{ - const unsigned char *ptr = _ptr; - return ptr[0] | (ptr[1] << 8); -} - -/* ---------------------------------------------------------------------- - * write a uint16_t into the buffer. - * network format is defined to be little endian - * -------------------------------------------------------------------- */ -void -vchi_writebuf_uint16(void *_ptr, uint16_t value) -{ - unsigned char *ptr = _ptr; - ptr[0] = (value >> 0) & 0xFF; - ptr[1] = (value >> 8) & 0xFF; -} - /*********************************************************** * Name: vchi_service_use * @@ -869,6 +827,7 @@ vchi_writebuf_uint16(void *_ptr, uint16_t value) int32_t vchi_service_use(const VCHI_SERVICE_HANDLE_T handle) { int32_t ret = -1; + SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle; if (service) ret = vchiq_status_to_vchi(vchiq_use_service(service->handle)); @@ -889,6 +848,7 @@ EXPORT_SYMBOL(vchi_service_use); int32_t vchi_service_release(const VCHI_SERVICE_HANDLE_T handle) { int32_t ret = -1; + SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle; if (service) ret = vchiq_status_to_vchi( diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c index e0ba0ed..7fa0310 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c @@ -52,7 +52,7 @@ int vchiu_queue_init(VCHIU_QUEUE_T *queue, int size) sema_init(&queue->push, 0); queue->storage = kzalloc(size * sizeof(VCHIQ_HEADER_T *), GFP_KERNEL); - if (queue->storage == NULL) { + if (!queue->storage) { vchiu_queue_delete(queue); return 0; } diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h index e63964f..5a1540d 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h @@ -44,7 +44,6 @@ #include <linux/jiffies.h> #include <linux/delay.h> #include <linux/string.h> -#include <linux/types.h> #include <linux/interrupt.h> #include <linux/random.h> #include <linux/sched/signal.h> @@ -52,7 +51,6 @@ #include <linux/uaccess.h> #include <linux/time.h> /* for time_t */ #include <linux/slab.h> -#include <linux/vmalloc.h> #include "vchiq_if.h" diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_version.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_version.c index b6bfa21..994b817 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_version.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_version.c @@ -33,27 +33,27 @@ #include "vchiq_build_info.h" #include <linux/broadcom/vc_debug_sym.h> -VC_DEBUG_DECLARE_STRING_VAR( vchiq_build_hostname, "dc4-arm-01" ); -VC_DEBUG_DECLARE_STRING_VAR( vchiq_build_version, "9245b4c35b99b3870e1f7dc598c5692b3c66a6f0 (tainted)" ); -VC_DEBUG_DECLARE_STRING_VAR( vchiq_build_time, __TIME__ ); -VC_DEBUG_DECLARE_STRING_VAR( vchiq_build_date, __DATE__ ); +VC_DEBUG_DECLARE_STRING_VAR(vchiq_build_hostname, "dc4-arm-01"); +VC_DEBUG_DECLARE_STRING_VAR(vchiq_build_version, "9245b4c35b99b3870e1f7dc598c5692b3c66a6f0 (tainted)"); +VC_DEBUG_DECLARE_STRING_VAR(vchiq_build_time, __TIME__); +VC_DEBUG_DECLARE_STRING_VAR(vchiq_build_date, __DATE__); -const char *vchiq_get_build_hostname( void ) +const char *vchiq_get_build_hostname(void) { return vchiq_build_hostname; } -const char *vchiq_get_build_version( void ) +const char *vchiq_get_build_version(void) { return vchiq_build_version; } -const char *vchiq_get_build_date( void ) +const char *vchiq_get_build_date(void) { return vchiq_build_date; } -const char *vchiq_get_build_time( void ) +const char *vchiq_get_build_time(void) { return vchiq_build_time; } |
