diff options
Diffstat (limited to 'sound/oss/ac97_codec.c')
| -rw-r--r-- | sound/oss/ac97_codec.c | 1203 |
1 files changed, 0 insertions, 1203 deletions
diff --git a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c deleted file mode 100644 index 0cd23d9..0000000 --- a/sound/oss/ac97_codec.c +++ /dev/null @@ -1,1203 +0,0 @@ -/* - * ac97_codec.c: Generic AC97 mixer/modem module - * - * Derived from ac97 mixer in maestro and trident driver. - * - * Copyright 2000 Silicon Integrated System Corporation - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - ************************************************************************** - * - * The Intel Audio Codec '97 specification is available at: - * http://download.intel.com/support/motherboards/desktop/sb/ac97_r23.pdf - * - ************************************************************************** - * - * History - * May 02, 2003 Liam Girdwood <lrg@slimlogic.co.uk> - * Removed non existent WM9700 - * Added support for WM9705, WM9708, WM9709, WM9710, WM9711 - * WM9712 and WM9717 - * Mar 28, 2002 Randolph Bentson <bentson@holmsjoen.com> - * corrections to support WM9707 in ViewPad 1000 - * v0.4 Mar 15 2000 Ollie Lho - * dual codecs support verified with 4 channels output - * v0.3 Feb 22 2000 Ollie Lho - * bug fix for record mask setting - * v0.2 Feb 10 2000 Ollie Lho - * add ac97_read_proc for /proc/driver/{vendor}/ac97 - * v0.1 Jan 14 2000 Ollie Lho <ollie@sis.com.tw> - * Isolated from trident.c to support multiple ac97 codec - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/bitops.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/ac97_codec.h> -#include <asm/uaccess.h> -#include <linux/mutex.h> - -#define CODEC_ID_BUFSZ 14 - -static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel); -static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, - unsigned int left, unsigned int right); -static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ); -static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask); -static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg); - -static int ac97_init_mixer(struct ac97_codec *codec); - -static int wolfson_init03(struct ac97_codec * codec); -static int wolfson_init04(struct ac97_codec * codec); -static int wolfson_init05(struct ac97_codec * codec); -static int wolfson_init11(struct ac97_codec * codec); -static int wolfson_init13(struct ac97_codec * codec); -static int tritech_init(struct ac97_codec * codec); -static int tritech_maestro_init(struct ac97_codec * codec); -static int sigmatel_9708_init(struct ac97_codec *codec); -static int sigmatel_9721_init(struct ac97_codec *codec); -static int sigmatel_9744_init(struct ac97_codec *codec); -static int ad1886_init(struct ac97_codec *codec); -static int eapd_control(struct ac97_codec *codec, int); -static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); -static int cmedia_init(struct ac97_codec * codec); -static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); -static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode); - - -/* - * AC97 operations. - * - * If you are adding a codec then you should be able to use - * eapd_ops - any codec that supports EAPD amp control (most) - * null_ops - any ancient codec that supports nothing - * - * The three functions are - * init - used for non AC97 standard initialisation - * amplifier - used to do amplifier control (1=on 0=off) - * digital - switch to digital modes (0 = analog) - * - * Not all codecs support all features, not all drivers use all the - * operations yet - */ - -static struct ac97_ops null_ops = { NULL, NULL, NULL }; -static struct ac97_ops default_ops = { NULL, eapd_control, NULL }; -static struct ac97_ops default_digital_ops = { NULL, eapd_control, generic_digital_control}; -static struct ac97_ops wolfson_ops03 = { wolfson_init03, NULL, NULL }; -static struct ac97_ops wolfson_ops04 = { wolfson_init04, NULL, NULL }; -static struct ac97_ops wolfson_ops05 = { wolfson_init05, NULL, NULL }; -static struct ac97_ops wolfson_ops11 = { wolfson_init11, NULL, NULL }; -static struct ac97_ops wolfson_ops13 = { wolfson_init13, NULL, NULL }; -static struct ac97_ops tritech_ops = { tritech_init, NULL, NULL }; -static struct ac97_ops tritech_m_ops = { tritech_maestro_init, NULL, NULL }; -static struct ac97_ops sigmatel_9708_ops = { sigmatel_9708_init, NULL, NULL }; -static struct ac97_ops sigmatel_9721_ops = { sigmatel_9721_init, NULL, NULL }; -static struct ac97_ops sigmatel_9744_ops = { sigmatel_9744_init, NULL, NULL }; -static struct ac97_ops crystal_digital_ops = { NULL, eapd_control, crystal_digital_control }; -static struct ac97_ops ad1886_ops = { ad1886_init, eapd_control, NULL }; -static struct ac97_ops cmedia_ops = { NULL, eapd_control, NULL}; -static struct ac97_ops cmedia_digital_ops = { cmedia_init, eapd_control, cmedia_digital_control}; - -/* sorted by vendor/device id */ -static const struct { - u32 id; - char *name; - struct ac97_ops *ops; - int flags; -} ac97_codec_ids[] = { - {0x41445303, "Analog Devices AD1819", &null_ops}, - {0x41445340, "Analog Devices AD1881", &null_ops}, - {0x41445348, "Analog Devices AD1881A", &null_ops}, - {0x41445360, "Analog Devices AD1885", &default_ops}, - {0x41445361, "Analog Devices AD1886", &ad1886_ops}, - {0x41445370, "Analog Devices AD1981", &null_ops}, - {0x41445372, "Analog Devices AD1981A", &null_ops}, - {0x41445374, "Analog Devices AD1981B", &null_ops}, - {0x41445460, "Analog Devices AD1885", &default_ops}, - {0x41445461, "Analog Devices AD1886", &ad1886_ops}, - {0x414B4D00, "Asahi Kasei AK4540", &null_ops}, - {0x414B4D01, "Asahi Kasei AK4542", &null_ops}, - {0x414B4D02, "Asahi Kasei AK4543", &null_ops}, - {0x414C4326, "ALC100P", &null_ops}, - {0x414C4710, "ALC200/200P", &null_ops}, - {0x414C4720, "ALC650", &default_digital_ops}, - {0x434D4941, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, - {0x434D4942, "CMedia", &cmedia_ops, AC97_NO_PCM_VOLUME }, - {0x434D4961, "CMedia", &cmedia_digital_ops, AC97_NO_PCM_VOLUME }, - {0x43525900, "Cirrus Logic CS4297", &default_ops}, - {0x43525903, "Cirrus Logic CS4297", &default_ops}, - {0x43525913, "Cirrus Logic CS4297A rev A", &default_ops}, - {0x43525914, "Cirrus Logic CS4297A rev B", &default_ops}, - {0x43525923, "Cirrus Logic CS4298", &null_ops}, - {0x4352592B, "Cirrus Logic CS4294", &null_ops}, - {0x4352592D, "Cirrus Logic CS4294", &null_ops}, - {0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops}, - {0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops}, - {0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops}, - {0x43585430, "CXT48", &default_ops, AC97_DELUDED_MODEM }, - {0x43585442, "CXT66", &default_ops, AC97_DELUDED_MODEM }, - {0x44543031, "Diamond Technology DT0893", &default_ops}, - {0x45838308, "ESS Allegro ES1988", &null_ops}, - {0x49434511, "ICE1232", &null_ops}, /* I hope --jk */ - {0x4e534331, "National Semiconductor LM4549", &null_ops}, - {0x53494c22, "Silicon Laboratory Si3036", &null_ops}, - {0x53494c23, "Silicon Laboratory Si3038", &null_ops}, - {0x545200FF, "TriTech TR?????", &tritech_m_ops}, - {0x54524102, "TriTech TR28022", &null_ops}, - {0x54524103, "TriTech TR28023", &null_ops}, - {0x54524106, "TriTech TR28026", &null_ops}, - {0x54524108, "TriTech TR28028", &tritech_ops}, - {0x54524123, "TriTech TR A5", &null_ops}, - {0x574D4C03, "Wolfson WM9703/07/08/17", &wolfson_ops03}, - {0x574D4C04, "Wolfson WM9704M/WM9704Q", &wolfson_ops04}, - {0x574D4C05, "Wolfson WM9705/WM9710", &wolfson_ops05}, - {0x574D4C09, "Wolfson WM9709", &null_ops}, - {0x574D4C12, "Wolfson WM9711/9712", &wolfson_ops11}, - {0x574D4C13, "Wolfson WM9713", &wolfson_ops13, AC97_DEFAULT_POWER_OFF}, - {0x83847600, "SigmaTel STAC????", &null_ops}, - {0x83847604, "SigmaTel STAC9701/3/4/5", &null_ops}, - {0x83847605, "SigmaTel STAC9704", &null_ops}, - {0x83847608, "SigmaTel STAC9708", &sigmatel_9708_ops}, - {0x83847609, "SigmaTel STAC9721/23", &sigmatel_9721_ops}, - {0x83847644, "SigmaTel STAC9744/45", &sigmatel_9744_ops}, - {0x83847652, "SigmaTel STAC9752/53", &default_ops}, - {0x83847656, "SigmaTel STAC9756/57", &sigmatel_9744_ops}, - {0x83847666, "SigmaTel STAC9750T", &sigmatel_9744_ops}, - {0x83847684, "SigmaTel STAC9783/84?", &null_ops}, - {0x57454301, "Winbond 83971D", &null_ops}, -}; - -/* this table has default mixer values for all OSS mixers. */ -static struct mixer_defaults { - int mixer; - unsigned int value; -} mixer_defaults[SOUND_MIXER_NRDEVICES] = { - /* all values 0 -> 100 in bytes */ - {SOUND_MIXER_VOLUME, 0x4343}, - {SOUND_MIXER_BASS, 0x4343}, - {SOUND_MIXER_TREBLE, 0x4343}, - {SOUND_MIXER_PCM, 0x4343}, - {SOUND_MIXER_SPEAKER, 0x4343}, - {SOUND_MIXER_LINE, 0x4343}, - {SOUND_MIXER_MIC, 0x0000}, - {SOUND_MIXER_CD, 0x4343}, - {SOUND_MIXER_ALTPCM, 0x4343}, - {SOUND_MIXER_IGAIN, 0x4343}, - {SOUND_MIXER_LINE1, 0x4343}, - {SOUND_MIXER_PHONEIN, 0x4343}, - {SOUND_MIXER_PHONEOUT, 0x4343}, - {SOUND_MIXER_VIDEO, 0x4343}, - {-1,0} -}; - -/* table to scale scale from OSS mixer value to AC97 mixer register value */ -static struct ac97_mixer_hw { - unsigned char offset; - int scale; -} ac97_hw[SOUND_MIXER_NRDEVICES]= { - [SOUND_MIXER_VOLUME] = {AC97_MASTER_VOL_STEREO,64}, - [SOUND_MIXER_BASS] = {AC97_MASTER_TONE, 16}, - [SOUND_MIXER_TREBLE] = {AC97_MASTER_TONE, 16}, - [SOUND_MIXER_PCM] = {AC97_PCMOUT_VOL, 32}, - [SOUND_MIXER_SPEAKER] = {AC97_PCBEEP_VOL, 16}, - [SOUND_MIXER_LINE] = {AC97_LINEIN_VOL, 32}, - [SOUND_MIXER_MIC] = {AC97_MIC_VOL, 32}, - [SOUND_MIXER_CD] = {AC97_CD_VOL, 32}, - [SOUND_MIXER_ALTPCM] = {AC97_HEADPHONE_VOL, 64}, - [SOUND_MIXER_IGAIN] = {AC97_RECORD_GAIN, 16}, - [SOUND_MIXER_LINE1] = {AC97_AUX_VOL, 32}, - [SOUND_MIXER_PHONEIN] = {AC97_PHONE_VOL, 32}, - [SOUND_MIXER_PHONEOUT] = {AC97_MASTER_VOL_MONO, 64}, - [SOUND_MIXER_VIDEO] = {AC97_VIDEO_VOL, 32}, -}; - -/* the following tables allow us to go from OSS <-> ac97 quickly. */ -enum ac97_recsettings { - AC97_REC_MIC=0, - AC97_REC_CD, - AC97_REC_VIDEO, - AC97_REC_AUX, - AC97_REC_LINE, - AC97_REC_STEREO, /* combination of all enabled outputs.. */ - AC97_REC_MONO, /*.. or the mono equivalent */ - AC97_REC_PHONE -}; - -static const unsigned int ac97_rm2oss[] = { - [AC97_REC_MIC] = SOUND_MIXER_MIC, - [AC97_REC_CD] = SOUND_MIXER_CD, - [AC97_REC_VIDEO] = SOUND_MIXER_VIDEO, - [AC97_REC_AUX] = SOUND_MIXER_LINE1, - [AC97_REC_LINE] = SOUND_MIXER_LINE, - [AC97_REC_STEREO]= SOUND_MIXER_IGAIN, - [AC97_REC_PHONE] = SOUND_MIXER_PHONEIN -}; - -/* indexed by bit position */ -static const unsigned int ac97_oss_rm[] = { - [SOUND_MIXER_MIC] = AC97_REC_MIC, - [SOUND_MIXER_CD] = AC97_REC_CD, - [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO, - [SOUND_MIXER_LINE1] = AC97_REC_AUX, - [SOUND_MIXER_LINE] = AC97_REC_LINE, - [SOUND_MIXER_IGAIN] = AC97_REC_STEREO, - [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE -}; - -static LIST_HEAD(codecs); -static LIST_HEAD(codec_drivers); -static DEFINE_MUTEX(codec_mutex); - -/* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows - about that given mixer, and should be holding a spinlock for the card */ -static int ac97_read_mixer(struct ac97_codec *codec, int oss_channel) -{ - u16 val; - int ret = 0; - int scale; - struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; - - val = codec->codec_read(codec , mh->offset); - - if (val & AC97_MUTE) { - ret = 0; - } else if (AC97_STEREO_MASK & (1 << oss_channel)) { - /* nice stereo mixers .. */ - int left,right; - - left = (val >> 8) & 0x7f; - right = val & 0x7f; - - if (oss_channel == SOUND_MIXER_IGAIN) { - right = (right * 100) / mh->scale; - left = (left * 100) / mh->scale; - } else { - /* these may have 5 or 6 bit resolution */ - if(oss_channel == SOUND_MIXER_VOLUME || oss_channel == SOUND_MIXER_ALTPCM) - scale = (1 << codec->bit_resolution); - else - scale = mh->scale; - - right = 100 - ((right * 100) / scale); - left = 100 - ((left * 100) / scale); - } - ret = left | (right << 8); - } else if (oss_channel == SOUND_MIXER_SPEAKER) { - ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale); - } else if (oss_channel == SOUND_MIXER_PHONEIN) { - ret = 100 - (((val & 0x1f) * 100) / mh->scale); - } else if (oss_channel == SOUND_MIXER_PHONEOUT) { - scale = (1 << codec->bit_resolution); - ret = 100 - (((val & 0x1f) * 100) / scale); - } else if (oss_channel == SOUND_MIXER_MIC) { - ret = 100 - (((val & 0x1f) * 100) / mh->scale); - /* the low bit is optional in the tone sliders and masking - it lets us avoid the 0xf 'bypass'.. */ - } else if (oss_channel == SOUND_MIXER_BASS) { - ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale); - } else if (oss_channel == SOUND_MIXER_TREBLE) { - ret = 100 - (((val & 0xe) * 100) / mh->scale); - } - -#ifdef DEBUG - printk("ac97_codec: read OSS mixer %2d (%s ac97 register 0x%02x), " - "0x%04x -> 0x%04x\n", - oss_channel, codec->id ? "Secondary" : "Primary", - mh->offset, val, ret); -#endif - - return ret; -} - -/* write the OSS encoded volume to the given OSS encoded mixer, again caller's job to - make sure all is well in arg land, call with spinlock held */ -static void ac97_write_mixer(struct ac97_codec *codec, int oss_channel, - unsigned int left, unsigned int right) -{ - u16 val = 0; - int scale; - struct ac97_mixer_hw *mh = &ac97_hw[oss_channel]; - -#ifdef DEBUG - printk("ac97_codec: wrote OSS mixer %2d (%s ac97 register 0x%02x), " - "left vol:%2d, right vol:%2d:", - oss_channel, codec->id ? "Secondary" : "Primary", - mh->offset, left, right); -#endif - - if (AC97_STEREO_MASK & (1 << oss_channel)) { - /* stereo mixers */ - if (left == 0 && right == 0) { - val = AC97_MUTE; - } else { - if (oss_channel == SOUND_MIXER_IGAIN) { - right = (right * mh->scale) / 100; - left = (left * mh->scale) / 100; - if (right >= mh->scale) - right = mh->scale-1; - if (left >= mh->scale) - left = mh->scale-1; - } else { - /* these may have 5 or 6 bit resolution */ - if (oss_channel == SOUND_MIXER_VOLUME || - oss_channel == SOUND_MIXER_ALTPCM) - scale = (1 << codec->bit_resolution); - else - scale = mh->scale; - - right = ((100 - right) * scale) / 100; - left = ((100 - left) * scale) / 100; - if (right >= scale) - right = scale-1; - if (left >= scale) - left = scale-1; - } - val = (left << 8) | right; - } - } else if (oss_channel == SOUND_MIXER_BASS) { - val = codec->codec_read(codec , mh->offset) & ~0x0f00; - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val |= (left << 8) & 0x0e00; - } else if (oss_channel == SOUND_MIXER_TREBLE) { - val = codec->codec_read(codec , mh->offset) & ~0x000f; - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val |= left & 0x000e; - } else if(left == 0) { - val = AC97_MUTE; - } else if (oss_channel == SOUND_MIXER_SPEAKER) { - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val = left << 1; - } else if (oss_channel == SOUND_MIXER_PHONEIN) { - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val = left; - } else if (oss_channel == SOUND_MIXER_PHONEOUT) { - scale = (1 << codec->bit_resolution); - left = ((100 - left) * scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val = left; - } else if (oss_channel == SOUND_MIXER_MIC) { - val = codec->codec_read(codec , mh->offset) & ~0x801f; - left = ((100 - left) * mh->scale) / 100; - if (left >= mh->scale) - left = mh->scale-1; - val |= left; - /* the low bit is optional in the tone sliders and masking - it lets us avoid the 0xf 'bypass'.. */ - } -#ifdef DEBUG - printk(" 0x%04x", val); -#endif - - codec->codec_write(codec, mh->offset, val); - -#ifdef DEBUG - val = codec->codec_read(codec, mh->offset); - printk(" -> 0x%04x\n", val); -#endif -} - -/* a thin wrapper for write_mixer */ -static void ac97_set_mixer(struct ac97_codec *codec, unsigned int oss_mixer, unsigned int val ) -{ - unsigned int left,right; - - /* cleanse input a little */ - right = ((val >> 8) & 0xff) ; - left = (val & 0xff) ; - - if (right > 100) right = 100; - if (left > 100) left = 100; - - codec->mixer_state[oss_mixer] = (right << 8) | left; - codec->write_mixer(codec, oss_mixer, left, right); -} - -/* read or write the recmask, the ac97 can really have left and right recording - inputs independently set, but OSS doesn't seem to want us to express that to - the user. the caller guarantees that we have a supported bit set, and they - must be holding the card's spinlock */ -static int ac97_recmask_io(struct ac97_codec *codec, int rw, int mask) -{ - unsigned int val; - - if (rw) { - /* read it from the card */ - val = codec->codec_read(codec, AC97_RECORD_SELECT); -#ifdef DEBUG - printk("ac97_codec: ac97 recmask to set to 0x%04x\n", val); -#endif - return (1 << ac97_rm2oss[val & 0x07]); - } - - /* else, write the first set in the mask as the - output */ - /* clear out current set value first (AC97 supports only 1 input!) */ - val = (1 << ac97_rm2oss[codec->codec_read(codec, AC97_RECORD_SELECT) & 0x07]); - if (mask != val) - mask &= ~val; - - val = ffs(mask); - val = ac97_oss_rm[val-1]; - val |= val << 8; /* set both channels */ - -#ifdef DEBUG - printk("ac97_codec: setting ac97 recmask to 0x%04x\n", val); -#endif - - codec->codec_write(codec, AC97_RECORD_SELECT, val); - - return 0; -}; - -static int ac97_mixer_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg) -{ - int i, val = 0; - - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, codec->name, sizeof(info.id)); - strlcpy(info.name, codec->name, sizeof(info.name)); - info.modify_counter = codec->modcnt; - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, codec->name, sizeof(info.id)); - strlcpy(info.name, codec->name, sizeof(info.name)); - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - - if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) - return -EINVAL; - - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, (int __user *)arg); - - if (_SIOC_DIR(cmd) == _SIOC_READ) { - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: /* give them the current record source */ - if (!codec->recmask_io) { - val = 0; - } else { - val = codec->recmask_io(codec, 1, 0); - } - break; - - case SOUND_MIXER_DEVMASK: /* give them the supported mixers */ - val = codec->supported_mixers; - break; - - case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */ - val = codec->record_sources; - break; - - case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */ - val = codec->stereo_mixers; - break; - - case SOUND_MIXER_CAPS: - val = SOUND_CAP_EXCL_INPUT; - break; - - default: /* read a specific mixer */ - i = _IOC_NR(cmd); - - if (!supported_mixer(codec, i)) - return -EINVAL; - - /* do we ever want to touch the hardware? */ - /* val = codec->read_mixer(codec, i); */ - val = codec->mixer_state[i]; - break; - } - return put_user(val, (int __user *)arg); - } - - if (_SIOC_DIR(cmd) == (_SIOC_WRITE|_SIOC_READ)) { - codec->modcnt++; - if (get_user(val, (int __user *)arg)) - return -EFAULT; - - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ - if (!codec->recmask_io) return -EINVAL; - if (!val) return 0; - if (!(val &= codec->record_sources)) return -EINVAL; - - codec->recmask_io(codec, 0, val); - - return 0; - default: /* write a specific mixer */ - i = _IOC_NR(cmd); - - if (!supported_mixer(codec, i)) - return -EINVAL; - - ac97_set_mixer(codec, i, val); - - return 0; - } - } - return -EINVAL; -} - -/** - * codec_id - Turn id1/id2 into a PnP string - * @id1: Vendor ID1 - * @id2: Vendor ID2 - * @buf: CODEC_ID_BUFSZ byte buffer - * - * Fills buf with a zero terminated PnP ident string for the id1/id2 - * pair. For convenience the return is the passed in buffer pointer. - */ - -static char *codec_id(u16 id1, u16 id2, char *buf) -{ - if(id1&0x8080) { - snprintf(buf, CODEC_ID_BUFSZ, "0x%04x:0x%04x", id1, id2); - } else { - buf[0] = (id1 >> 8); - buf[1] = (id1 & 0xFF); - buf[2] = (id2 >> 8); - snprintf(buf+3, CODEC_ID_BUFSZ - 3, "%d", id2&0xFF); - } - return buf; -} - -/** - * ac97_check_modem - Check if the Codec is a modem - * @codec: codec to check - * - * Return true if the device is an AC97 1.0 or AC97 2.0 modem - */ - -static int ac97_check_modem(struct ac97_codec *codec) -{ - /* Check for an AC97 1.0 soft modem (ID1) */ - if(codec->codec_read(codec, AC97_RESET) & 2) - return 1; - /* Check for an AC97 2.x soft modem */ - codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0L); - if(codec->codec_read(codec, AC97_EXTENDED_MODEM_ID) & 1) - return 1; - return 0; -} - - -/** - * ac97_alloc_codec - Allocate an AC97 codec - * - * Returns a new AC97 codec structure. AC97 codecs may become - * refcounted soon so this interface is needed. Returns with - * one reference taken. - */ - -struct ac97_codec *ac97_alloc_codec(void) -{ - struct ac97_codec *codec = kzalloc(sizeof(struct ac97_codec), GFP_KERNEL); - if(!codec) - return NULL; - - spin_lock_init(&codec->lock); - INIT_LIST_HEAD(&codec->list); - return codec; -} - -EXPORT_SYMBOL(ac97_alloc_codec); - -/** - * ac97_release_codec - Release an AC97 codec - * @codec: codec to release - * - * Release an allocated AC97 codec. This will be refcounted in - * time but for the moment is trivial. Calls the unregister - * handler if the codec is now defunct. - */ - -void ac97_release_codec(struct ac97_codec *codec) -{ - /* Remove from the list first, we don't want to be - "rediscovered" */ - mutex_lock(&codec_mutex); - list_del(&codec->list); - mutex_unlock(&codec_mutex); - /* - * The driver needs to deal with internal - * locking to avoid accidents here. - */ - if(codec->driver) - codec->driver->remove(codec, codec->driver); - kfree(codec); -} - -EXPORT_SYMBOL(ac97_release_codec); - -/** - * ac97_probe_codec - Initialize and setup AC97-compatible codec - * @codec: (in/out) Kernel info for a single AC97 codec - * - * Reset the AC97 codec, then initialize the mixer and - * the rest of the @codec structure. - * - * The codec_read and codec_write fields of @codec are - * required to be setup and working when this function - * is called. All other fields are set by this function. - * - * codec_wait field of @codec can optionally be provided - * when calling this function. If codec_wait is not %NULL, - * this function will call codec_wait any time it is - * necessary to wait for the audio chip to reach the - * codec-ready state. If codec_wait is %NULL, then - * the default behavior is to call schedule_timeout. - * Currently codec_wait is used to wait for AC97 codec - * reset to complete. - * - * Some codecs will power down when a register reset is - * performed. We now check for such codecs. - * - * Returns 1 (true) on success, or 0 (false) on failure. - */ - -int ac97_probe_codec(struct ac97_codec *codec) -{ - u16 id1, id2; - u16 audio; - int i; - char cidbuf[CODEC_ID_BUFSZ]; - u16 f; - struct list_head *l; - struct ac97_driver *d; - - /* wait for codec-ready state */ - if (codec->codec_wait) - codec->codec_wait(codec); - else - udelay(10); - - /* will the codec power down if register reset ? */ - id1 = codec->codec_read(codec, AC97_VENDOR_ID1); - id2 = codec->codec_read(codec, AC97_VENDOR_ID2); - codec->name = NULL; - codec->codec_ops = &null_ops; - for (i = 0; i < ARRAY_SIZE(ac97_codec_ids); i++) { - if (ac97_codec_ids[i].id == ((id1 << 16) | id2)) { - codec->type = ac97_codec_ids[i].id; - codec->name = ac97_codec_ids[i].name; - codec->codec_ops = ac97_codec_ids[i].ops; - codec->flags = ac97_codec_ids[i].flags; - break; - } - } - - codec->model = (id1 << 16) | id2; - if ((codec->flags & AC97_DEFAULT_POWER_OFF) == 0) { - /* reset codec and wait for the ready bit before we continue */ - codec->codec_write(codec, AC97_RESET, 0L); - if (codec->codec_wait) - codec->codec_wait(codec); - else - udelay(10); - } - - /* probing AC97 codec, AC97 2.0 says that bit 15 of register 0x00 (reset) should - * be read zero. - * - * FIXME: is the following comment outdated? -jgarzik - * Probing of AC97 in this way is not reliable, it is not even SAFE !! - */ - if ((audio = codec->codec_read(codec, AC97_RESET)) & 0x8000) { - printk(KERN_ERR "ac97_codec: %s ac97 codec not present\n", - (codec->id & 0x2) ? (codec->id&1 ? "4th" : "Tertiary") - : (codec->id&1 ? "Secondary": "Primary")); - return 0; - } - - /* probe for Modem Codec */ - codec->modem = ac97_check_modem(codec); - - /* enable SPDIF */ - f = codec->codec_read(codec, AC97_EXTENDED_STATUS); - if((codec->codec_ops == &null_ops) && (f & 4)) - codec->codec_ops = &default_digital_ops; - - /* A device which thinks its a modem but isn't */ - if(codec->flags & AC97_DELUDED_MODEM) - codec->modem = 0; - - if (codec->name == NULL) - codec->name = "Unknown"; - printk(KERN_INFO "ac97_codec: AC97 %s codec, id: %s (%s)\n", - codec->modem ? "Modem" : (audio ? "Audio" : ""), - codec_id(id1, id2, cidbuf), codec->name); - - if(!ac97_init_mixer(codec)) - return 0; - - /* - * Attach last so the caller can override the mixer - * callbacks. - */ - - mutex_lock(&codec_mutex); - list_add(&codec->list, &codecs); - - list_for_each(l, &codec_drivers) { - d = list_entry(l, struct ac97_driver, list); - if ((codec->model ^ d->codec_id) & d->codec_mask) - continue; - if(d->probe(codec, d) == 0) - { - codec->driver = d; - break; - } - } - - mutex_unlock(&codec_mutex); - return 1; -} - -static int ac97_init_mixer(struct ac97_codec *codec) -{ - u16 cap; - int i; - - cap = codec->codec_read(codec, AC97_RESET); - - /* mixer masks */ - codec->supported_mixers = AC97_SUPPORTED_MASK; - codec->stereo_mixers = AC97_STEREO_MASK; - codec->record_sources = AC97_RECORD_MASK; - if (!(cap & 0x04)) - codec->supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE); - if (!(cap & 0x10)) - codec->supported_mixers &= ~SOUND_MASK_ALTPCM; - - - /* detect bit resolution */ - codec->codec_write(codec, AC97_MASTER_VOL_STEREO, 0x2020); - if(codec->codec_read(codec, AC97_MASTER_VOL_STEREO) == 0x2020) - codec->bit_resolution = 6; - else - codec->bit_resolution = 5; - - /* generic OSS to AC97 wrapper */ - codec->read_mixer = ac97_read_mixer; - codec->write_mixer = ac97_write_mixer; - codec->recmask_io = ac97_recmask_io; - codec->mixer_ioctl = ac97_mixer_ioctl; - - /* initialize mixer channel volumes */ - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { - struct mixer_defaults *md = &mixer_defaults[i]; - if (md->mixer == -1) - break; - if (!supported_mixer(codec, md->mixer)) - continue; - ac97_set_mixer(codec, md->mixer, md->value); - } - - /* codec specific initialization for 4-6 channel output or secondary codec stuff */ - if (codec->codec_ops->init != NULL) { - codec->codec_ops->init(codec); - } - - /* - * Volume is MUTE only on this device. We have to initialise - * it but its useless beyond that. - */ - if(codec->flags & AC97_NO_PCM_VOLUME) - { - codec->supported_mixers &= ~SOUND_MASK_PCM; - printk(KERN_WARNING "AC97 codec does not have proper volume support.\n"); - } - return 1; -} - -#define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */ -#define AC97_SIGMATEL_DAC2INVERT 0x6e -#define AC97_SIGMATEL_BIAS1 0x70 -#define AC97_SIGMATEL_BIAS2 0x72 -#define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */ -#define AC97_SIGMATEL_CIC1 0x76 -#define AC97_SIGMATEL_CIC2 0x78 - - -static int sigmatel_9708_init(struct ac97_codec * codec) -{ - u16 codec72, codec6c; - - codec72 = codec->codec_read(codec, AC97_SIGMATEL_BIAS2) & 0x8000; - codec6c = codec->codec_read(codec, AC97_SIGMATEL_ANALOG); - - if ((codec72==0) && (codec6c==0)) { - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1000); - codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0007); - } else if ((codec72==0x8000) && (codec6c==0)) { - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x1001); - codec->codec_write(codec, AC97_SIGMATEL_DAC2INVERT, 0x0008); - } else if ((codec72==0x8000) && (codec6c==0x0080)) { - /* nothing */ - } - codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); - return 0; -} - - -static int sigmatel_9721_init(struct ac97_codec * codec) -{ - /* Only set up secondary codec */ - if (codec->id == 0) - return 0; - - codec->codec_write(codec, AC97_SURROUND_MASTER, 0L); - - /* initialize SigmaTel STAC9721/23 as secondary codec, decoding AC link - sloc 3,4 = 0x01, slot 7,8 = 0x00, */ - codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x00); - - /* we don't have the crystal when we are on an AMR card, so use - BIT_CLK as our clock source. Write the magic word ABBA and read - back to enable register 0x78 */ - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_read(codec, AC97_SIGMATEL_CIC1); - - /* sync all the clocks*/ - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x3802); - - return 0; -} - - -static int sigmatel_9744_init(struct ac97_codec * codec) -{ - // patch for SigmaTel - codec->codec_write(codec, AC97_SIGMATEL_CIC1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_CIC2, 0x0000); // is this correct? --jk - codec->codec_write(codec, AC97_SIGMATEL_BIAS1, 0xabba); - codec->codec_write(codec, AC97_SIGMATEL_BIAS2, 0x0002); - codec->codec_write(codec, AC97_SIGMATEL_MULTICHN, 0x0000); - return 0; -} - -static int cmedia_init(struct ac97_codec *codec) -{ - /* Initialise the CMedia 9739 */ - /* - We could set various options here - Register 0x20 bit 0x100 sets mic as center bass - Also do multi_channel_ctrl &=~0x3000 |=0x1000 - - For now we set up the GPIO and PC beep - */ - - u16 v; - - /* MIC */ - codec->codec_write(codec, 0x64, 0x3000); - v = codec->codec_read(codec, 0x64); - v &= ~0x8000; - codec->codec_write(codec, 0x64, v); - codec->codec_write(codec, 0x70, 0x0100); - codec->codec_write(codec, 0x72, 0x0020); - return 0; -} - -#define AC97_WM97XX_FMIXER_VOL 0x72 -#define AC97_WM97XX_RMIXER_VOL 0x74 -#define AC97_WM97XX_TEST 0x5a -#define AC97_WM9704_RPCM_VOL 0x70 -#define AC97_WM9711_OUT3VOL 0x16 - -static int wolfson_init03(struct ac97_codec * codec) -{ - /* this is known to work for the ViewSonic ViewPad 1000 */ - codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); - codec->codec_write(codec, AC97_GENERAL_PURPOSE, 0x8000); - return 0; -} - -static int wolfson_init04(struct ac97_codec * codec) -{ - codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); - codec->codec_write(codec, AC97_WM97XX_RMIXER_VOL, 0x0808); - - // patch for DVD noise - codec->codec_write(codec, AC97_WM97XX_TEST, 0x0200); - - // init vol as PCM vol - codec->codec_write(codec, AC97_WM9704_RPCM_VOL, - codec->codec_read(codec, AC97_PCMOUT_VOL)); - - /* set rear surround volume */ - codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); - return 0; -} - -/* WM9705, WM9710 */ -static int wolfson_init05(struct ac97_codec * codec) -{ - /* set front mixer volume */ - codec->codec_write(codec, AC97_WM97XX_FMIXER_VOL, 0x0808); - return 0; -} - -/* WM9711, WM9712 */ -static int wolfson_init11(struct ac97_codec * codec) -{ - /* stop pop's during suspend/resume */ - codec->codec_write(codec, AC97_WM97XX_TEST, - codec->codec_read(codec, AC97_WM97XX_TEST) & 0xffbf); - - /* set out3 volume */ - codec->codec_write(codec, AC97_WM9711_OUT3VOL, 0x0808); - return 0; -} - -/* WM9713 */ -static int wolfson_init13(struct ac97_codec * codec) -{ - codec->codec_write(codec, AC97_RECORD_GAIN, 0x00a0); - codec->codec_write(codec, AC97_POWER_CONTROL, 0x0000); - codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0xDA00); - codec->codec_write(codec, AC97_EXTEND_MODEM_STAT, 0x3810); - codec->codec_write(codec, AC97_PHONE_VOL, 0x0808); - codec->codec_write(codec, AC97_PCBEEP_VOL, 0x0808); - - return 0; -} - -static int tritech_init(struct ac97_codec * codec) -{ - codec->codec_write(codec, 0x26, 0x0300); - codec->codec_write(codec, 0x26, 0x0000); - codec->codec_write(codec, AC97_SURROUND_MASTER, 0x0000); - codec->codec_write(codec, AC97_RESERVED_3A, 0x0000); - return 0; -} - - -/* copied from drivers/sound/maestro.c */ -static int tritech_maestro_init(struct ac97_codec * codec) -{ - /* no idea what this does */ - codec->codec_write(codec, 0x2A, 0x0001); - codec->codec_write(codec, 0x2C, 0x0000); - codec->codec_write(codec, 0x2C, 0XFFFF); - return 0; -} - - - -/* - * Presario700 workaround - * for Jack Sense/SPDIF Register mis-setting causing - * no audible output - * by Santiago Nullo 04/05/2002 - */ - -#define AC97_AD1886_JACK_SENSE 0x72 - -static int ad1886_init(struct ac97_codec * codec) -{ - /* from AD1886 Specs */ - codec->codec_write(codec, AC97_AD1886_JACK_SENSE, 0x0010); - return 0; -} - - - - -/* - * This is basically standard AC97. It should work as a default for - * almost all modern codecs. Note that some cards wire EAPD *backwards* - * That side of it is up to the card driver not us to cope with. - * - */ - -static int eapd_control(struct ac97_codec * codec, int on) -{ - if(on) - codec->codec_write(codec, AC97_POWER_CONTROL, - codec->codec_read(codec, AC97_POWER_CONTROL)|0x8000); - else - codec->codec_write(codec, AC97_POWER_CONTROL, - codec->codec_read(codec, AC97_POWER_CONTROL)&~0x8000); - return 0; -} - -static int generic_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) -{ - u16 reg; - - reg = codec->codec_read(codec, AC97_SPDIF_CONTROL); - - switch(rate) - { - /* Off by default */ - default: - case 0: - reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); - codec->codec_write(codec, AC97_EXTENDED_STATUS, (reg & ~AC97_EA_SPDIF)); - if(rate == 0) - return 0; - return -EINVAL; - case 1: - reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; - break; - case 2: - reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; - break; - case 3: - reg = (reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; - break; - } - - reg &= ~AC97_SC_CC_MASK; - reg |= (mode & AUDIO_CCMASK) << 6; - - if(mode & AUDIO_DIGITAL) - reg |= 2; - if(mode & AUDIO_PRO) - reg |= 1; - if(mode & AUDIO_DRS) - reg |= 0x4000; - - codec->codec_write(codec, AC97_SPDIF_CONTROL, reg); - - reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); - reg &= (AC97_EA_SLOT_MASK); - reg |= AC97_EA_VRA | AC97_EA_SPDIF | slots; - codec->codec_write(codec, AC97_EXTENDED_STATUS, reg); - - reg = codec->codec_read(codec, AC97_EXTENDED_STATUS); - if(!(reg & 0x0400)) - { - codec->codec_write(codec, AC97_EXTENDED_STATUS, reg & ~ AC97_EA_SPDIF); - return -EINVAL; - } - return 0; -} - -/* - * Crystal digital audio control (CS4299) - */ - -static int crystal_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) -{ - u16 cv; - - if(mode & AUDIO_DIGITAL) - return -EINVAL; - - switch(rate) - { - case 0: cv = 0x0; break; /* SPEN off */ - case 48000: cv = 0x8004; break; /* 48KHz digital */ - case 44100: cv = 0x8104; break; /* 44.1KHz digital */ - case 32768: /* 32Khz */ - default: - return -EINVAL; - } - codec->codec_write(codec, 0x68, cv); - return 0; -} - -/* - * CMedia digital audio control - * Needs more work. - */ - -static int cmedia_digital_control(struct ac97_codec *codec, int slots, int rate, int mode) -{ - u16 cv; - - if(mode & AUDIO_DIGITAL) - return -EINVAL; - - switch(rate) - { - case 0: cv = 0x0001; break; /* SPEN off */ - case 48000: cv = 0x0009; break; /* 48KHz digital */ - default: - return -EINVAL; - } - codec->codec_write(codec, 0x2A, 0x05c4); - codec->codec_write(codec, 0x6C, cv); - - /* Switch on mix to surround */ - cv = codec->codec_read(codec, 0x64); - cv &= ~0x0200; - if(mode) - cv |= 0x0200; - codec->codec_write(codec, 0x64, cv); - return 0; -} - - -/* copied from drivers/sound/maestro.c */ -#if 0 /* there has been 1 person on the planet with a pt101 that we - know of. If they care, they can put this back in :) */ -static int pt101_init(struct ac97_codec * codec) -{ - printk(KERN_INFO "ac97_codec: PT101 Codec detected, initializing but _not_ installing mixer device.\n"); - /* who knows.. */ - codec->codec_write(codec, 0x2A, 0x0001); - codec->codec_write(codec, 0x2C, 0x0000); - codec->codec_write(codec, 0x2C, 0xFFFF); - codec->codec_write(codec, 0x10, 0x9F1F); - codec->codec_write(codec, 0x12, 0x0808); - codec->codec_write(codec, 0x14, 0x9F1F); - codec->codec_write(codec, 0x16, 0x9F1F); - codec->codec_write(codec, 0x18, 0x0404); - codec->codec_write(codec, 0x1A, 0x0000); - codec->codec_write(codec, 0x1C, 0x0000); - codec->codec_write(codec, 0x02, 0x0404); - codec->codec_write(codec, 0x04, 0x0808); - codec->codec_write(codec, 0x0C, 0x801F); - codec->codec_write(codec, 0x0E, 0x801F); - return 0; -} -#endif - - -EXPORT_SYMBOL(ac97_probe_codec); - -MODULE_LICENSE("GPL"); - |
