1204 строки
36 KiB
C
1204 строки
36 KiB
C
/*
|
|
* 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");
|
|
|