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[ALSA] Removing obsolete AC97_SHARED_TYPES 

This patch cleans last ac97 audio/modem codec interception in
initialization procedures (ac97_mixer_new()) and removes obsolete
SHARED_TYPE 'locking' which prevents from AMC codecs to function
correctly.

Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Sasha Khapyorsky 2005-09-29 12:58:24 +02:00 committed by Jaroslav Kysela
parent 6632d198c6
commit 2ba71978c0
8 changed files with 3 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
include/sound/ac97_codec.h
View File

@ -387,15 +387,6 @@
#define AC97_RATES_MIC_ADC 4
#define AC97_RATES_SPDIF 5
/* shared controllers */
enum {
AC97_SHARED_TYPE_NONE,
AC97_SHARED_TYPE_ICH,
AC97_SHARED_TYPE_ATIIXP,
AC97_SHARED_TYPE_VIA,
AC97_SHARED_TYPES
};
/*
*
*/
@ -468,7 +459,6 @@ struct _snd_ac97_bus {
unsigned short used_slots[2][4]; /* actually used PCM slots */
unsigned short pcms_count; /* count of PCMs */
struct ac97_pcm *pcms;
unsigned int shared_type; /* type of shared controller betwen audio and modem */
ac97_t *codec[4];
snd_info_entry_t *proc;
};

38
sound/pci/ac97/ac97_codec.c
View File

@ -220,12 +220,6 @@ const char *snd_ac97_stereo_enhancements[] =
/* 31 */ "Reserved 31"
};
/*
* Shared AC97 controllers (ICH, ATIIXP...)
*/
static DECLARE_MUTEX(shared_codec_mutex);
static ac97_t *shared_codec[AC97_SHARED_TYPES][4];
/*
* I/O routines
@ -996,14 +990,8 @@ static int snd_ac97_free(ac97_t *ac97)
{
if (ac97) {
snd_ac97_proc_done(ac97);
if (ac97->bus) {
if (ac97->bus)
ac97->bus->codec[ac97->num] = NULL;
if (ac97->bus->shared_type) {
down(&shared_codec_mutex);
shared_codec[ac97->bus->shared_type-1][ac97->num] = NULL;
up(&shared_codec_mutex);
}
}
if (ac97->private_free)
ac97->private_free(ac97);
kfree(ac97);
@ -1889,21 +1877,6 @@ int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
snd_assert(bus != NULL && template != NULL, return -EINVAL);
snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
snd_assert(bus->shared_type <= AC97_SHARED_TYPES, return -EINVAL);
if (bus->shared_type) {
/* already shared? */
down(&shared_codec_mutex);
ac97 = shared_codec[bus->shared_type-1][template->num];
if (ac97) {
if ((ac97_is_audio(ac97) && (template->scaps & AC97_SCAP_SKIP_AUDIO)) ||
(ac97_is_modem(ac97) && (template->scaps & AC97_SCAP_SKIP_MODEM))) {
up(&shared_codec_mutex);
return -EACCES; /* skip this */
}
}
up(&shared_codec_mutex);
}
card = bus->card;
ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
if (ac97 == NULL)
@ -2153,7 +2126,7 @@ int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
}
}
/* make sure the proper powerdown bits are cleared */
if (ac97->scaps) {
if (ac97->scaps && ac97_is_audio(ac97)) {
reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
reg &= ~AC97_EA_PRJ;
@ -2167,13 +2140,6 @@ int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
return err;
}
*rac97 = ac97;
if (bus->shared_type) {
down(&shared_codec_mutex);
shared_codec[bus->shared_type-1][ac97->num] = ac97;
up(&shared_codec_mutex);
}
return 0;
}

1
sound/pci/atiixp.c
View File

@ -1372,7 +1372,6 @@ static int __devinit snd_atiixp_mixer_new(atiixp_t *chip, int clock, const char
if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
return err;
pbus->clock = clock;
pbus->shared_type = AC97_SHARED_TYPE_ATIIXP; /* shared with modem driver */
chip->ac97_bus = pbus;
codec_count = 0;

1
sound/pci/atiixp_modem.c
View File

@ -1068,7 +1068,6 @@ static int __devinit snd_atiixp_mixer_new(atiixp_t *chip, int clock)
if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
return err;
pbus->clock = clock;
pbus->shared_type = AC97_SHARED_TYPE_ATIIXP; /* shared with audio driver */
chip->ac97_bus = pbus;
codec_count = 0;

1
sound/pci/intel8x0.c
View File

@ -2022,7 +2022,6 @@ static int __devinit snd_intel8x0_mixer(intel8x0_t *chip, int ac97_clock, const
if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
goto __err;
pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
pbus->shared_type = AC97_SHARED_TYPE_ICH; /* shared with modem driver */
if (ac97_clock >= 8000 && ac97_clock <= 48000)
pbus->clock = ac97_clock;
/* FIXME: my test board doesn't work well with VRA... */

1
sound/pci/intel8x0m.c
View File

@ -855,7 +855,6 @@ static int __devinit snd_intel8x0_mixer(intel8x0_t *chip, int ac97_clock)
if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
goto __err;
pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
pbus->shared_type = AC97_SHARED_TYPE_ICH; /* shared with audio driver */
if (ac97_clock >= 8000 && ac97_clock <= 48000)
pbus->clock = ac97_clock;
chip->ac97_bus = pbus;

2
sound/pci/via82xx.c
View File

@ -1616,12 +1616,12 @@ static int __devinit snd_via82xx_mixer_new(via82xx_t *chip, const char *quirk_ov
return err;
chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
chip->ac97_bus->clock = chip->ac97_clock;
chip->ac97_bus->shared_type = AC97_SHARED_TYPE_VIA;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
ac97.private_free = snd_via82xx_mixer_free_ac97;
ac97.pci = chip->pci;
ac97.scaps = AC97_SCAP_SKIP_MODEM;
if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
return err;

1
sound/pci/via82xx_modem.c
View File

@ -879,7 +879,6 @@ static int __devinit snd_via82xx_mixer_new(via82xx_t *chip)
return err;
chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
chip->ac97_bus->clock = chip->ac97_clock;
chip->ac97_bus->shared_type = AC97_SHARED_TYPE_VIA;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;