diff options
Diffstat (limited to 'sound/pci/ca0106')
| -rw-r--r-- | sound/pci/ca0106/Makefile | 2 | ||||
| -rw-r--r-- | sound/pci/ca0106/ca0106.h | 27 | ||||
| -rw-r--r-- | sound/pci/ca0106/ca0106_main.c | 111 | ||||
| -rw-r--r-- | sound/pci/ca0106/ca_midi.c | 304 | ||||
| -rw-r--r-- | sound/pci/ca0106/ca_midi.h | 72 |
5 files changed, 511 insertions, 5 deletions
diff --git a/sound/pci/ca0106/Makefile b/sound/pci/ca0106/Makefile index 89c6cee..dcbae7b 100644 --- a/sound/pci/ca0106/Makefile +++ b/sound/pci/ca0106/Makefile @@ -1,3 +1,3 @@ -snd-ca0106-objs := ca0106_main.o ca0106_proc.o ca0106_mixer.o +snd-ca0106-objs := ca0106_main.o ca0106_proc.o ca0106_mixer.o ca_midi.o obj-$(CONFIG_SND_CA0106) += snd-ca0106.o diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h index da09cab..9a4b640 100644 --- a/sound/pci/ca0106/ca0106.h +++ b/sound/pci/ca0106/ca0106.h @@ -399,10 +399,24 @@ #define PLAYBACK_VOLUME2 0x6a /* Playback Analog volume per channel. Does not effect AC3 output */ /* Similar to register 0x66, except that the destination is the I2S mixer instead of the SPDIF mixer. I.E. Outputs to the Analog outputs instead of SPDIF. */ #define UNKNOWN6b 0x6b /* Unknown. Readonly. Default 00400000 00400000 00400000 00400000 */ -#define UART_A_DATA 0x6c /* Uart, used in setting sample rates, bits per sample etc. */ -#define UART_A_CMD 0x6d /* Uart, used in setting sample rates, bits per sample etc. */ -#define UART_B_DATA 0x6e /* Uart, Unknown. */ -#define UART_B_CMD 0x6f /* Uart, Unknown. */ +#define MIDI_UART_A_DATA 0x6c /* Midi Uart A Data */ +#define MIDI_UART_A_CMD 0x6d /* Midi Uart A Command/Status */ +#define MIDI_UART_B_DATA 0x6e /* Midi Uart B Data (currently unused) */ +#define MIDI_UART_B_CMD 0x6f /* Midi Uart B Command/Status (currently unused) */ + +/* unique channel identifier for midi->channel */ + +#define CA0106_MIDI_CHAN_A 0x1 +#define CA0106_MIDI_CHAN_B 0x2 + +/* from mpu401 */ + +#define CA0106_MIDI_INPUT_AVAIL 0x80 +#define CA0106_MIDI_OUTPUT_READY 0x40 +#define CA0106_MPU401_RESET 0xff +#define CA0106_MPU401_ENTER_UART 0x3f +#define CA0106_MPU401_ACK 0xfe + #define SAMPLE_RATE_TRACKER_STATUS 0x70 /* Readonly. Default 00108000 00108000 00500000 00500000 */ /* Estimated sample rate [19:0] Relative to 48kHz. 0x8000 = 1.0 * Rate Locked [20] @@ -538,6 +552,8 @@ #define CONTROL_CENTER_LFE_CHANNEL 1 #define CONTROL_UNKNOWN_CHANNEL 2 +#include "ca_midi.h" + typedef struct snd_ca0106_channel ca0106_channel_t; typedef struct snd_ca0106 ca0106_t; typedef struct snd_ca0106_pcm ca0106_pcm_t; @@ -592,6 +608,9 @@ struct snd_ca0106 { int capture_mic_line_in; struct snd_dma_buffer buffer; + + ca_midi_t midi; + ca_midi_t midi2; }; int __devinit snd_ca0106_mixer(ca0106_t *emu); diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c index f6920ef..aaaef9e 100644 --- a/sound/pci/ca0106/ca0106_main.c +++ b/sound/pci/ca0106/ca0106_main.c @@ -338,6 +338,18 @@ static void snd_ca0106_intr_enable(ca0106_t *emu, unsigned int intrenb) spin_unlock_irqrestore(&emu->emu_lock, flags); } +static void snd_ca0106_intr_disable(ca0106_t *emu, unsigned int intrenb) +{ + unsigned long flags; + unsigned int enable; + + spin_lock_irqsave(&emu->emu_lock, flags); + enable = inl(emu->port + INTE) & ~intrenb; + outl(enable, emu->port + INTE); + spin_unlock_irqrestore(&emu->emu_lock, flags); +} + + static void snd_ca0106_pcm_free_substream(snd_pcm_runtime_t *runtime) { kfree(runtime->private_data); @@ -1040,6 +1052,15 @@ static irqreturn_t snd_ca0106_interrupt(int irq, void *dev_id, snd_ca0106_ptr_write(chip, EXTENDED_INT, 0, stat76); spin_lock(&chip->emu_lock); + + if (chip->midi.dev_id && + (status & (chip->midi.ipr_tx|chip->midi.ipr_rx))) { + if (chip->midi.interrupt) + chip->midi.interrupt(&chip->midi, status); + else + chip->midi.interrupt_disable(&chip->midi, chip->midi.tx_enable | chip->midi.rx_enable); + } + // acknowledge the interrupt if necessary outl(status, chip->port+IPR); @@ -1309,6 +1330,82 @@ static int __devinit snd_ca0106_create(snd_card_t *card, return 0; } + +void ca0106_midi_interrupt_enable(ca_midi_t *midi, int intr){ + snd_ca0106_intr_enable((ca0106_t *)(midi->dev_id), intr); +} + +void ca0106_midi_interrupt_disable(ca_midi_t *midi, int intr){ + snd_ca0106_intr_disable((ca0106_t *)(midi->dev_id), intr); +} + +unsigned char ca0106_midi_read(ca_midi_t *midi, int idx){ + return (unsigned char)snd_ca0106_ptr_read((ca0106_t *)(midi->dev_id), midi->port + idx, 0); +} + +void ca0106_midi_write(ca_midi_t *midi, int data, int idx){ + snd_ca0106_ptr_write((ca0106_t *)(midi->dev_id), midi->port + idx, 0, data); +} + +snd_card_t *ca0106_dev_id_card(void *dev_id){ + return ((ca0106_t *)dev_id)->card; +} + +int ca0106_dev_id_port(void *dev_id){ + return ((ca0106_t *)dev_id)->port; +} + +static int __devinit snd_ca0106_midi(ca0106_t *chip, unsigned int channel) +{ + ca_midi_t *midi; + char *name; + int err; + + if(channel==CA0106_MIDI_CHAN_B) { + name = "CA0106 MPU-401 (UART) B"; + midi = &chip->midi2; + midi->tx_enable = INTE_MIDI_TX_B; + midi->rx_enable = INTE_MIDI_RX_B; + midi->ipr_tx = IPR_MIDI_TX_B; + midi->ipr_rx = IPR_MIDI_RX_B; + midi->port = MIDI_UART_B_DATA; + } else { + name = "CA0106 MPU-401 (UART)"; + midi = &chip->midi; + midi->tx_enable = INTE_MIDI_TX_A; + midi->rx_enable = INTE_MIDI_TX_B; + midi->ipr_tx = IPR_MIDI_TX_A; + midi->ipr_rx = IPR_MIDI_RX_A; + midi->port = MIDI_UART_A_DATA; + } + + midi->reset = CA0106_MPU401_RESET; + midi->enter_uart = CA0106_MPU401_ENTER_UART; + midi->ack = CA0106_MPU401_ACK; + + midi->input_avail = CA0106_MIDI_INPUT_AVAIL; + midi->output_ready = CA0106_MIDI_OUTPUT_READY; + + midi->channel = channel; + + midi->interrupt_enable = ca0106_midi_interrupt_enable; + midi->interrupt_disable = ca0106_midi_interrupt_disable; + + midi->read = ca0106_midi_read; + midi->write = ca0106_midi_write; + + midi->get_dev_id_card = ca0106_dev_id_card; + midi->get_dev_id_port = ca0106_dev_id_port; + + midi->dev_id = chip; + + if ((err = ca_midi_init(chip, midi, 0, name)) < 0) + return err; + + return 0; +} + + static int __devinit snd_ca0106_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { @@ -1360,6 +1457,20 @@ static int __devinit snd_ca0106_probe(struct pci_dev *pci, return err; } +#ifdef CONFIG_SND_DEBUG_DETECT + printk("ca0106: probe for MIDI channel A ..."); +#endif + if ((err = snd_ca0106_midi(chip,CA0106_MIDI_CHAN_A)) < 0) { + snd_card_free(card); +#ifdef CONFIG_SND_DEBUG_DETECT + printk(" failed, err=0x%x\n",err); +#endif + return err; + } +#ifdef CONFIG_SND_DEBUG_DETECT + printk(" done.\n"); +#endif + snd_ca0106_proc_init(chip); if ((err = snd_card_register(card)) < 0) { diff --git a/sound/pci/ca0106/ca_midi.c b/sound/pci/ca0106/ca_midi.c new file mode 100644 index 0000000..f439d14 --- /dev/null +++ b/sound/pci/ca0106/ca_midi.c @@ -0,0 +1,304 @@ +/* + * Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de> + * Creative Audio MIDI, for the CA0106 Driver + * Version: 0.0.1 + * + * Changelog: + * Implementation is based on mpu401 and emu10k1x and + * tested with ca0106. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * + */ + +#include <linux/spinlock.h> +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/rawmidi.h> + +#include "ca_midi.h" + +#define ca_midi_write_data(midi, data) midi->write(midi, data, 0) +#define ca_midi_write_cmd(midi, data) midi->write(midi, data, 1) +#define ca_midi_read_data(midi) midi->read(midi, 0) +#define ca_midi_read_stat(midi) midi->read(midi, 1) +#define ca_midi_input_avail(midi) (!(ca_midi_read_stat(midi) & midi->input_avail)) +#define ca_midi_output_ready(midi) (!(ca_midi_read_stat(midi) & midi->output_ready)) + +static void ca_midi_clear_rx(ca_midi_t *midi) +{ + int timeout = 100000; + for (; timeout > 0 && ca_midi_input_avail(midi); timeout--) + ca_midi_read_data(midi); +#ifdef CONFIG_SND_DEBUG + if (timeout <= 0) + snd_printk(KERN_ERR "ca_midi_clear_rx: timeout (status = 0x%x)\n", ca_midi_read_stat(midi)); +#endif +} + +void ca_midi_interrupt(ca_midi_t *midi, unsigned int status) { + unsigned char byte; + + if (midi->rmidi == NULL) { + midi->interrupt_disable(midi,midi->tx_enable | midi->rx_enable); + return; + } + + spin_lock(&midi->input_lock); + if ((status & midi->ipr_rx) && ca_midi_input_avail(midi)) { + if (!(midi->midi_mode & CA_MIDI_MODE_INPUT)) { + ca_midi_clear_rx(midi); + } else { + byte = ca_midi_read_data(midi); + if(midi->substream_input) + snd_rawmidi_receive(midi->substream_input, &byte, 1); + + + } + } + spin_unlock(&midi->input_lock); + + spin_lock(&midi->output_lock); + if ((status & midi->ipr_tx) && ca_midi_output_ready(midi)) { + if (midi->substream_output && + snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) { + ca_midi_write_data(midi, byte); + } else { + midi->interrupt_disable(midi,midi->tx_enable); + } + } + spin_unlock(&midi->output_lock); + +} + +static void ca_midi_cmd(ca_midi_t *midi, unsigned char cmd, int ack) +{ + unsigned long flags; + int timeout, ok; + + spin_lock_irqsave(&midi->input_lock, flags); + ca_midi_write_data(midi, 0x00); + /* ca_midi_clear_rx(midi); */ + + ca_midi_write_cmd(midi, cmd); + if (ack) { + ok = 0; + timeout = 10000; + while (!ok && timeout-- > 0) { + if (ca_midi_input_avail(midi)) { + if (ca_midi_read_data(midi) == midi->ack) + ok = 1; + } + } + if (!ok && ca_midi_read_data(midi) == midi->ack) + ok = 1; + } else { + ok = 1; + } + spin_unlock_irqrestore(&midi->input_lock, flags); + if (!ok) + snd_printk(KERN_ERR "ca_midi_cmd: 0x%x failed at 0x%x (status = 0x%x, data = 0x%x)!!!\n", + cmd, + midi->get_dev_id_port(midi->dev_id), + ca_midi_read_stat(midi), + ca_midi_read_data(midi)); +} + +static int ca_midi_input_open(snd_rawmidi_substream_t * substream) +{ + ca_midi_t *midi = (ca_midi_t *)substream->rmidi->private_data; + unsigned long flags; + + snd_assert(midi->dev_id, return -ENXIO); + spin_lock_irqsave(&midi->open_lock, flags); + midi->midi_mode |= CA_MIDI_MODE_INPUT; + midi->substream_input = substream; + if (!(midi->midi_mode & CA_MIDI_MODE_OUTPUT)) { + spin_unlock_irqrestore(&midi->open_lock, flags); + ca_midi_cmd(midi, midi->reset, 1); + ca_midi_cmd(midi, midi->enter_uart, 1); + } else { + spin_unlock_irqrestore(&midi->open_lock, flags); + } + return 0; +} + +static int ca_midi_output_open(snd_rawmidi_substream_t * substream) +{ + ca_midi_t *midi = (ca_midi_t *)substream->rmidi->private_data; + unsigned long flags; + + snd_assert(midi->dev_id, return -ENXIO); + spin_lock_irqsave(&midi->open_lock, flags); + midi->midi_mode |= CA_MIDI_MODE_OUTPUT; + midi->substream_output = substream; + if (!(midi->midi_mode & CA_MIDI_MODE_INPUT)) { + spin_unlock_irqrestore(&midi->open_lock, flags); + ca_midi_cmd(midi, midi->reset, 1); + ca_midi_cmd(midi, midi->enter_uart, 1); + } else { + spin_unlock_irqrestore(&midi->open_lock, flags); + } + return 0; +} + +static int ca_midi_input_close(snd_rawmidi_substream_t * substream) +{ + ca_midi_t *midi = (ca_midi_t *)substream->rmidi->private_data; + unsigned long flags; + + snd_assert(midi->dev_id, return -ENXIO); + spin_lock_irqsave(&midi->open_lock, flags); + midi->interrupt_disable(midi,midi->rx_enable); + midi->midi_mode &= ~CA_MIDI_MODE_INPUT; + midi->substream_input = NULL; + if (!(midi->midi_mode & CA_MIDI_MODE_OUTPUT)) { + spin_unlock_irqrestore(&midi->open_lock, flags); + ca_midi_cmd(midi, midi->reset, 0); + } else { + spin_unlock_irqrestore(&midi->open_lock, flags); + } + return 0; +} + +static int ca_midi_output_close(snd_rawmidi_substream_t * substream) +{ + ca_midi_t *midi = (ca_midi_t *)substream->rmidi->private_data; + unsigned long flags; + snd_assert(midi->dev_id, return -ENXIO); + + spin_lock_irqsave(&midi->open_lock, flags); + + midi->interrupt_disable(midi,midi->tx_enable); + midi->midi_mode &= ~CA_MIDI_MODE_OUTPUT; + midi->substream_output = NULL; + + if (!(midi->midi_mode & CA_MIDI_MODE_INPUT)) { + spin_unlock_irqrestore(&midi->open_lock, flags); + ca_midi_cmd(midi, midi->reset, 0); + } else { + spin_unlock_irqrestore(&midi->open_lock, flags); + } + return 0; +} + +static void ca_midi_input_trigger(snd_rawmidi_substream_t * substream, int up) +{ + ca_midi_t *midi = (ca_midi_t *)substream->rmidi->private_data; + snd_assert(midi->dev_id, return); + + if (up) { + midi->interrupt_enable(midi,midi->rx_enable); + } else { + midi->interrupt_disable(midi, midi->rx_enable); + } +} + +static void ca_midi_output_trigger(snd_rawmidi_substream_t * substream, int up) +{ + ca_midi_t *midi = (ca_midi_t *)substream->rmidi->private_data; + unsigned long flags; + + snd_assert(midi->dev_id, return); + + if (up) { + int max = 4; + unsigned char byte; + + spin_lock_irqsave(&midi->output_lock, flags); + + /* try to send some amount of bytes here before interrupts */ + while (max > 0) { + if (ca_midi_output_ready(midi)) { + if (!(midi->midi_mode & CA_MIDI_MODE_OUTPUT) || + snd_rawmidi_transmit(substream, &byte, 1) != 1) { + /* no more data */ + spin_unlock_irqrestore(&midi->output_lock, flags); + return; + } + ca_midi_write_data(midi, byte); + max--; + } else { + break; + } + } + + spin_unlock_irqrestore(&midi->output_lock, flags); + midi->interrupt_enable(midi,midi->tx_enable); + + } else { + midi->interrupt_disable(midi,midi->tx_enable); + } +} + +static snd_rawmidi_ops_t ca_midi_output = +{ + .open = ca_midi_output_open, + .close = ca_midi_output_close, + .trigger = ca_midi_output_trigger, +}; + +static snd_rawmidi_ops_t ca_midi_input = +{ + .open = ca_midi_input_open, + .close = ca_midi_input_close, + .trigger = ca_midi_input_trigger, +}; + +void ca_midi_free(ca_midi_t *midi) { + midi->interrupt = NULL; + midi->interrupt_enable = NULL; + midi->interrupt_disable = NULL; + midi->read = NULL; + midi->write = NULL; + midi->get_dev_id_card = NULL; + midi->get_dev_id_port = NULL; + midi->rmidi = NULL; +} + +static void ca_rmidi_free(snd_rawmidi_t *rmidi) +{ + ca_midi_free((ca_midi_t *)rmidi->private_data); +} + +int __devinit ca_midi_init(void *dev_id, ca_midi_t *midi, int device, char *name) +{ + snd_rawmidi_t *rmidi; + int err; + + if ((err = snd_rawmidi_new(midi->get_dev_id_card(midi->dev_id), name, device, 1, 1, &rmidi)) < 0) + return err; + + midi->dev_id = dev_id; + midi->interrupt = ca_midi_interrupt; + + spin_lock_init(&midi->open_lock); + spin_lock_init(&midi->input_lock); + spin_lock_init(&midi->output_lock); + + strcpy(rmidi->name, name); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &ca_midi_output); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &ca_midi_input); + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = midi; + rmidi->private_free = ca_rmidi_free; + + midi->rmidi = rmidi; + return 0; +} + diff --git a/sound/pci/ca0106/ca_midi.h b/sound/pci/ca0106/ca_midi.h new file mode 100644 index 0000000..95c8e1c --- /dev/null +++ b/sound/pci/ca0106/ca_midi.h @@ -0,0 +1,72 @@ +/* + * Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de> + * Creative Audio MIDI, for the CA0106 Driver + * Version: 0.0.1 + * + * Changelog: + * See ca_midi.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include<linux/spinlock.h> +#include<sound/rawmidi.h> +#include<sound/mpu401.h> + +#define CA_MIDI_MODE_INPUT MPU401_MODE_INPUT +#define CA_MIDI_MODE_OUTPUT MPU401_MODE_OUTPUT + +typedef struct ca_midi ca_midi_t; +struct ca_midi { + + snd_rawmidi_t *rmidi; + snd_rawmidi_substream_t *substream_input; + snd_rawmidi_substream_t *substream_output; + + void *dev_id; + + spinlock_t input_lock; + spinlock_t output_lock; + spinlock_t open_lock; + + unsigned int channel; + + unsigned int midi_mode; + int port; + int tx_enable, rx_enable; + int ipr_tx, ipr_rx; + + int input_avail, output_ready; + int ack, reset, enter_uart; + + void (*interrupt)(ca_midi_t *midi, unsigned int status); + void (*interrupt_enable)(ca_midi_t *midi, int intr); + void (*interrupt_disable)(ca_midi_t *midi, int intr); + + unsigned char (*read)(ca_midi_t *midi, int idx); + void (*write)(ca_midi_t *midi, int data, int idx); + + /* get info from dev_id */ + snd_card_t *(*get_dev_id_card)(void *dev_id); + int (*get_dev_id_port)(void *dev_id); +}; + +void ca_midi_interrupt(ca_midi_t *midi, unsigned int status); + +int __devinit ca_midi_init(void *card, ca_midi_t *midi, int device, char *name); + +void ca_midi_free(ca_midi_t *midi); + |
