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Diffstat (limited to 'sound/pci/ac97/ac97_codec.c')
-rw-r--r--sound/pci/ac97/ac97_codec.c68
1 files changed, 37 insertions, 31 deletions
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 3020ca2b602b..278319bbdea1 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/moduleparam.h>
+#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
@@ -149,7 +150,7 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = {
{ 0x49544561, 0xffffffff, "IT2646E", patch_it2646, NULL },
{ 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
{ 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
-{ 0x4e534350, 0xffffffff, "LM4550", NULL, NULL },
+{ 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
{ 0x50534304, 0xffffffff, "UCB1400", NULL, NULL },
{ 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
{ 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
@@ -191,9 +192,6 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = {
static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
{
- if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed))
- return 0;
-
/* filter some registers for buggy codecs */
switch (ac97->id) {
case AC97_ID_AK4540:
@@ -296,11 +294,11 @@ void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned sh
{
if (!snd_ac97_valid_reg(ac97, reg))
return;
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
ac97->regs[reg] = value;
ac97->bus->ops->write(ac97, reg, value);
set_bit(reg, ac97->reg_accessed);
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
}
/**
@@ -321,14 +319,14 @@ int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short va
if (!snd_ac97_valid_reg(ac97, reg))
return -EINVAL;
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
change = ac97->regs[reg] != value;
if (change) {
ac97->regs[reg] = value;
ac97->bus->ops->write(ac97, reg, value);
}
set_bit(reg, ac97->reg_accessed);
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
return change;
}
@@ -351,9 +349,9 @@ int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned sho
if (!snd_ac97_valid_reg(ac97, reg))
return -EINVAL;
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
return change;
}
@@ -380,12 +378,12 @@ static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, uns
int change;
unsigned short old, new, cfg;
- down(&ac97->page_mutex);
+ mutex_lock(&ac97->page_mutex);
old = ac97->spec.ad18xx.pcmreg[codec];
new = (old & ~mask) | value;
change = old != new;
if (change) {
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
ac97->spec.ad18xx.pcmreg[codec] = new;
/* select single codec */
@@ -397,9 +395,9 @@ static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, uns
/* select all codecs */
ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
cfg | 0x7000);
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
}
- up(&ac97->page_mutex);
+ mutex_unlock(&ac97->page_mutex);
return change;
}
@@ -467,7 +465,7 @@ static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontro
(ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
(reg >= 0x60 && reg < 0x70)) {
unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
- down(&ac97->page_mutex); /* lock paging */
+ mutex_lock(&ac97->page_mutex); /* lock paging */
page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
}
@@ -478,7 +476,7 @@ static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
{
if (page_save >= 0) {
snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
- up(&ac97->page_mutex); /* unlock paging */
+ mutex_unlock(&ac97->page_mutex); /* unlock paging */
}
}
@@ -674,12 +672,12 @@ static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_
{
struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
return 0;
}
@@ -718,7 +716,7 @@ static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_
}
}
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
change = ac97->spdif_status != new;
ac97->spdif_status = new;
@@ -746,7 +744,7 @@ static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_
snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
}
}
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
return change;
}
@@ -763,7 +761,7 @@ static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_
value = (ucontrol->value.integer.value[0] & mask);
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
mask <<= shift;
value <<= shift;
old = snd_ac97_read_cache(ac97, reg);
@@ -777,7 +775,7 @@ static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_
if (extst & AC97_EA_SPDIF)
snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
}
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
return change;
}
@@ -888,10 +886,10 @@ static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct
struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
int codec = kcontrol->private_value & 3;
- down(&ac97->page_mutex);
+ mutex_lock(&ac97->page_mutex);
ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
- up(&ac97->page_mutex);
+ mutex_unlock(&ac97->page_mutex);
return 0;
}
@@ -1007,9 +1005,6 @@ static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
break;
}
- if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed))
- return 1; /* allow without check */
-
val = snd_ac97_read(ac97, reg);
if (!(val & mask)) {
/* nothing seems to be here - mute flag is not set */
@@ -1029,6 +1024,18 @@ static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned cha
unsigned char max[3] = { 63, 31, 15 };
int i;
+ /* first look up the static resolution table */
+ if (ac97->res_table) {
+ const struct snd_ac97_res_table *tbl;
+ for (tbl = ac97->res_table; tbl->reg; tbl++) {
+ if (tbl->reg == reg) {
+ *lo_max = tbl->bits & 0xff;
+ *hi_max = (tbl->bits >> 8) & 0xff;
+ return;
+ }
+ }
+ }
+
*lo_max = *hi_max = 0;
for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
unsigned short val;
@@ -1853,11 +1860,10 @@ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
ac97->num = template->num;
ac97->addr = template->addr;
ac97->scaps = template->scaps;
- ac97->limited_regs = template->limited_regs;
- memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
+ ac97->res_table = template->res_table;
bus->codec[ac97->num] = ac97;
- init_MUTEX(&ac97->reg_mutex);
- init_MUTEX(&ac97->page_mutex);
+ mutex_init(&ac97->reg_mutex);
+ mutex_init(&ac97->page_mutex);
#ifdef CONFIG_PCI
if (ac97->pci) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-29 06:34:35 +0300