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path: root/sound/pci/ac97/ac97_pcm.c
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Diffstat (limited to 'sound/pci/ac97/ac97_pcm.c')
-rw-r--r--sound/pci/ac97/ac97_pcm.c112
1 files changed, 82 insertions, 30 deletions
diff --git a/sound/pci/ac97/ac97_pcm.c b/sound/pci/ac97/ac97_pcm.c
index dd289b9512e..d15297a6880 100644
--- a/sound/pci/ac97/ac97_pcm.c
+++ b/sound/pci/ac97/ac97_pcm.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Universal interface for Audio Codec '97
*
* For more details look to AC '97 component specification revision 2.2
@@ -23,16 +23,17 @@
*
*/
-#include <sound/driver.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/export.h>
+
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/control.h>
#include <sound/ac97_codec.h>
#include <sound/asoundef.h>
-#include "ac97_patch.h"
#include "ac97_id.h"
#include "ac97_local.h"
@@ -170,7 +171,7 @@ static unsigned char get_slot_reg(struct ac97_pcm *pcm, unsigned short cidx,
return rate_cregs[slot - 3];
}
-static int set_spdif_rate(ac97_t *ac97, unsigned short rate)
+static int set_spdif_rate(struct snd_ac97 *ac97, unsigned short rate)
{
unsigned short old, bits, reg, mask;
unsigned int sbits;
@@ -206,7 +207,7 @@ static int set_spdif_rate(ac97_t *ac97, unsigned short rate)
mask = AC97_SC_SPSR_MASK;
}
- down(&ac97->reg_mutex);
+ mutex_lock(&ac97->reg_mutex);
old = snd_ac97_read(ac97, reg) & mask;
if (old != bits) {
snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
@@ -231,7 +232,7 @@ static int set_spdif_rate(ac97_t *ac97, unsigned short rate)
ac97->spdif_status = sbits;
}
snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF);
- up(&ac97->reg_mutex);
+ mutex_unlock(&ac97->reg_mutex);
return 0;
}
@@ -252,9 +253,9 @@ static int set_spdif_rate(ac97_t *ac97, unsigned short rate)
* AC97_SPDIF is accepted as a pseudo register to modify the SPDIF
* status bits.
*
- * Returns zero if successful, or a negative error code on failure.
+ * Return: Zero if successful, or a negative error code on failure.
*/
-int snd_ac97_set_rate(ac97_t *ac97, int reg, unsigned int rate)
+int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate)
{
int dbl;
unsigned int tmp;
@@ -267,6 +268,7 @@ int snd_ac97_set_rate(ac97_t *ac97, int reg, unsigned int rate)
return -EINVAL;
}
+ snd_ac97_update_power(ac97, reg, 1);
switch (reg) {
case AC97_PCM_MIC_ADC_RATE:
if ((ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_VRM) == 0) /* MIC VRA */
@@ -303,10 +305,21 @@ int snd_ac97_set_rate(ac97_t *ac97, int reg, unsigned int rate)
AC97_EA_DRA, dbl ? AC97_EA_DRA : 0);
snd_ac97_update(ac97, reg, tmp & 0xffff);
snd_ac97_read(ac97, reg);
+ if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE) {
+ /* Intel controllers require double rate data to be put in
+ * slots 7+8
+ */
+ snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE,
+ AC97_GP_DRSS_MASK,
+ dbl ? AC97_GP_DRSS_78 : 0);
+ snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
+ }
return 0;
}
-static unsigned short get_pslots(ac97_t *ac97, unsigned char *rate_table, unsigned short *spdif_slots)
+EXPORT_SYMBOL(snd_ac97_set_rate);
+
+static unsigned short get_pslots(struct snd_ac97 *ac97, unsigned char *rate_table, unsigned short *spdif_slots)
{
if (!ac97_is_audio(ac97))
return 0;
@@ -381,7 +394,7 @@ static unsigned short get_pslots(ac97_t *ac97, unsigned char *rate_table, unsign
}
}
-static unsigned short get_cslots(ac97_t *ac97)
+static unsigned short get_cslots(struct snd_ac97 *ac97)
{
unsigned short slots;
@@ -427,8 +440,10 @@ static unsigned int get_rates(struct ac97_pcm *pcm, unsigned int cidx, unsigned
* It assigns available AC97 slots for given PCMs. If none or only
* some slots are available, pcm->xxx.slots and pcm->xxx.rslots[] members
* are reduced and might be zero.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
-int snd_ac97_pcm_assign(ac97_bus_t *bus,
+int snd_ac97_pcm_assign(struct snd_ac97_bus *bus,
unsigned short pcms_count,
const struct ac97_pcm *pcms)
{
@@ -440,7 +455,7 @@ int snd_ac97_pcm_assign(ac97_bus_t *bus,
unsigned short tmp, slots;
unsigned short spdif_slots[4];
unsigned int rates;
- ac97_t *codec;
+ struct snd_ac97 *codec;
rpcms = kcalloc(pcms_count, sizeof(struct ac97_pcm), GFP_KERNEL);
if (rpcms == NULL)
@@ -539,6 +554,8 @@ int snd_ac97_pcm_assign(ac97_bus_t *bus,
return 0;
}
+EXPORT_SYMBOL(snd_ac97_pcm_assign);
+
/**
* snd_ac97_pcm_open - opens the given AC97 pcm
* @pcm: the ac97 pcm instance
@@ -547,11 +564,13 @@ int snd_ac97_pcm_assign(ac97_bus_t *bus,
* @slots: a subset of allocated slots (snd_ac97_pcm_assign) for this pcm
*
* It locks the specified slots and sets the given rate to AC97 registers.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
enum ac97_pcm_cfg cfg, unsigned short slots)
{
- ac97_bus_t *bus;
+ struct snd_ac97_bus *bus;
int i, cidx, r, ok_flag;
unsigned int reg_ok[4] = {0,0,0,0};
unsigned char reg;
@@ -560,7 +579,6 @@ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
r = rate > 48000;
bus = pcm->bus;
if (cfg == AC97_PCM_CFG_SPDIF) {
- int err;
for (cidx = 0; cidx < 4; cidx++)
if (bus->codec[cidx] && (bus->codec[cidx]->ext_id & AC97_EI_SPDIF)) {
err = set_spdif_rate(bus->codec[cidx], rate);
@@ -586,11 +604,14 @@ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
}
if (!ok_flag) {
spin_unlock_irq(&pcm->bus->bus_lock);
- snd_printk(KERN_ERR "cannot find configuration for AC97 slot %i\n", i);
+ dev_err(bus->card->dev,
+ "cannot find configuration for AC97 slot %i\n",
+ i);
err = -EAGAIN;
goto error;
}
}
+ pcm->cur_dbl = r;
spin_unlock_irq(&pcm->bus->bus_lock);
for (i = 3; i < 12; i++) {
if (!(slots & (1 << i)))
@@ -599,15 +620,20 @@ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
if (pcm->r[r].rslots[cidx] & (1 << i)) {
reg = get_slot_reg(pcm, cidx, i, r);
if (reg == 0xff) {
- snd_printk(KERN_ERR "invalid AC97 slot %i?\n", i);
+ dev_err(bus->card->dev,
+ "invalid AC97 slot %i?\n", i);
continue;
}
if (reg_ok[cidx] & (1 << (reg - AC97_PCM_FRONT_DAC_RATE)))
continue;
- //printk(KERN_DEBUG "setting ac97 reg 0x%x to rate %d\n", reg, rate);
+ dev_dbg(bus->card->dev,
+ "setting ac97 reg 0x%x to rate %d\n",
+ reg, rate);
err = snd_ac97_set_rate(pcm->r[r].codec[cidx], reg, rate);
if (err < 0)
- snd_printk(KERN_ERR "error in snd_ac97_set_rate: cidx=%d, reg=0x%x, rate=%d, err=%d\n", cidx, reg, rate, err);
+ dev_err(bus->card->dev,
+ "error in snd_ac97_set_rate: cidx=%d, reg=0x%x, rate=%d, err=%d\n",
+ cidx, reg, rate, err);
else
reg_ok[cidx] |= (1 << (reg - AC97_PCM_FRONT_DAC_RATE));
}
@@ -622,18 +648,37 @@ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
return err;
}
+EXPORT_SYMBOL(snd_ac97_pcm_open);
+
/**
* snd_ac97_pcm_close - closes the given AC97 pcm
* @pcm: the ac97 pcm instance
*
* It frees the locked AC97 slots.
+ *
+ * Return: Zero.
*/
int snd_ac97_pcm_close(struct ac97_pcm *pcm)
{
- ac97_bus_t *bus;
+ struct snd_ac97_bus *bus;
unsigned short slots = pcm->aslots;
int i, cidx;
+#ifdef CONFIG_SND_AC97_POWER_SAVE
+ int r = pcm->cur_dbl;
+ for (i = 3; i < 12; i++) {
+ if (!(slots & (1 << i)))
+ continue;
+ for (cidx = 0; cidx < 4; cidx++) {
+ if (pcm->r[r].rslots[cidx] & (1 << i)) {
+ int reg = get_slot_reg(pcm, cidx, i, r);
+ snd_ac97_update_power(pcm->r[r].codec[cidx],
+ reg, 0);
+ }
+ }
+ }
+#endif
+
bus = pcm->bus;
spin_lock_irq(&pcm->bus->bus_lock);
for (i = 3; i < 12; i++) {
@@ -643,35 +688,38 @@ int snd_ac97_pcm_close(struct ac97_pcm *pcm)
bus->used_slots[pcm->stream][cidx] &= ~(1 << i);
}
pcm->aslots = 0;
+ pcm->cur_dbl = 0;
spin_unlock_irq(&pcm->bus->bus_lock);
return 0;
}
-static int double_rate_hw_constraint_rate(snd_pcm_hw_params_t *params,
- snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_ac97_pcm_close);
+
+static int double_rate_hw_constraint_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
{
- snd_interval_t *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
if (channels->min > 2) {
- static const snd_interval_t single_rates = {
+ static const struct snd_interval single_rates = {
.min = 1,
.max = 48000,
};
- snd_interval_t *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
return snd_interval_refine(rate, &single_rates);
}
return 0;
}
-static int double_rate_hw_constraint_channels(snd_pcm_hw_params_t *params,
- snd_pcm_hw_rule_t *rule)
+static int double_rate_hw_constraint_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
{
- snd_interval_t *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
if (rate->min > 48000) {
- static const snd_interval_t double_rate_channels = {
+ static const struct snd_interval double_rate_channels = {
.min = 2,
.max = 2,
};
- snd_interval_t *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
return snd_interval_refine(channels, &double_rate_channels);
}
return 0;
@@ -683,8 +731,10 @@ static int double_rate_hw_constraint_channels(snd_pcm_hw_params_t *params,
*
* Installs the hardware constraint rules to prevent using double rates and
* more than two channels at the same time.
+ *
+ * Return: Zero if successful, or a negative error code on failure.
*/
-int snd_ac97_pcm_double_rate_rules(snd_pcm_runtime_t *runtime)
+int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime)
{
int err;
@@ -698,3 +748,5 @@ int snd_ac97_pcm_double_rate_rules(snd_pcm_runtime_t *runtime)
SNDRV_PCM_HW_PARAM_RATE, -1);
return err;
}
+
+EXPORT_SYMBOL(snd_ac97_pcm_double_rate_rules);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 06:29:05 +0000