Merge branch 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa

[sfrench/cifs-2.6.git] / sound / pci / ac97 / ac97_pcm.c

diff --git a/sound/pci/ac97/ac97_pcm.c b/sound/pci/ac97/ac97_pcm.c
index ded13165d635e24113e2c8f935f08399dafaadaf..3758d07182f8013f2707971894ffe7a963c5ddf7 100644 (file)
--- a/sound/pci/ac97/ac97_pcm.c
+++ b/sound/pci/ac97/ac97_pcm.c
@@ -27,6 +27,8 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mutex.h>
+
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/control.h>
@@ -170,7 +172,7 @@ 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 +208,7 @@ 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 +233,7 @@ 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;
 }
 
@@ -254,7 +256,7 @@ static int set_spdif_rate(ac97_t *ac97, unsigned short rate)
  *
  * Returns 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 +269,7 @@ 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 */
@@ -315,7 +318,9 @@ int snd_ac97_set_rate(ac97_t *ac97, int reg, unsigned int rate)
        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;
@@ -390,7 +395,7 @@ 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;
 
@@ -437,7 +442,7 @@ static unsigned int get_rates(struct ac97_pcm *pcm, unsigned int cidx, unsigned
  * some slots are available, pcm->xxx.slots and pcm->xxx.rslots[] members
  * are reduced and might be zero.
  */
-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)
 {
@@ -449,7 +454,7 @@ 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)
@@ -548,6 +553,8 @@ 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
@@ -560,7 +567,7 @@ int snd_ac97_pcm_assign(ac97_bus_t *bus,
 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;
@@ -600,6 +607,7 @@ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
                        goto error;
                }
        }
+       pcm->cur_dbl = r;
        spin_unlock_irq(&pcm->bus->bus_lock);
        for (i = 3; i < 12; i++) {
                if (!(slots & (1 << i)))
@@ -631,6 +639,8 @@ 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
@@ -639,10 +649,25 @@ int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
  */
 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++) {
@@ -652,35 +677,38 @@ 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;
@@ -693,7 +721,7 @@ 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.
  */
-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;
 
@@ -707,3 +735,5 @@ 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);