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authorRaymond Yau <superquad.vortex2@gmail.com>2012-01-17 11:32:17 +0800
committerTakashi Iwai <tiwai@suse.de>2012-01-24 15:25:08 +0100
commitbb92b7c4ed4f7d5102bb1623cc8a1a9960ddfc08 (patch)
treed92a7641af16f2b7952a4c091756e067650c11b2 /sound/pci/au88x0
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
downloadlinux-bb92b7c4ed4f7d5102bb1623cc8a1a9960ddfc08.tar.bz2
ALSA: Au88x0 - Implement subdevice volume controls
- add "PCM Playback Volume" controls for 16 playback subdevices This allow application to change the volume of each subdevice by using hardware mixer of au88x0 and default is zero gain/attenunation. Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/au88x0')
-rw-r--r--sound/pci/au88x0/au88x0.h13
-rw-r--r--sound/pci/au88x0/au88x0_core.c18
-rw-r--r--sound/pci/au88x0/au88x0_pcm.c127
3 files changed, 145 insertions, 13 deletions
diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h
index bb938153a964..466a5c8e8354 100644
--- a/sound/pci/au88x0/au88x0.h
+++ b/sound/pci/au88x0/au88x0.h
@@ -26,7 +26,7 @@
#include <sound/mpu401.h>
#include <sound/hwdep.h>
#include <sound/ac97_codec.h>
-
+#include <sound/tlv.h>
#endif
#ifndef CHIP_AU8820
@@ -107,6 +107,14 @@
#define NR_WTPB 0x20 /* WT channels per each bank. */
#define NR_PCM 0x10
+struct pcm_vol {
+ struct snd_kcontrol *kctl;
+ int active;
+ int dma;
+ int mixin[4];
+ int vol[4];
+};
+
/* Structs */
typedef struct {
//int this_08; /* Still unknown */
@@ -168,6 +176,7 @@ struct snd_vortex {
/* Xtalk canceler */
int xt_mode; /* 1: speakers, 0:headphones. */
#endif
+ struct pcm_vol pcm_vol[NR_PCM];
int isquad; /* cache of extended ID codec flag. */
@@ -239,7 +248,7 @@ static int vortex_alsafmt_aspfmt(int alsafmt);
/* Connection stuff. */
static void vortex_connect_default(vortex_t * vortex, int en);
static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch,
- int dir, int type);
+ int dir, int type, int subdev);
static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out,
int restype);
#ifndef CHIP_AU8810
diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c
index 6933a27a5d76..1181c5ec2d4f 100644
--- a/sound/pci/au88x0/au88x0_core.c
+++ b/sound/pci/au88x0/au88x0_core.c
@@ -2050,8 +2050,6 @@ vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
}
/* Default Connections */
-static int
-vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type);
static void vortex_connect_default(vortex_t * vortex, int en)
{
@@ -2111,15 +2109,13 @@ static void vortex_connect_default(vortex_t * vortex, int en)
Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
*/
static int
-vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type)
+vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
+ int type, int subdev)
{
stream_t *stream;
int i, en;
+ struct pcm_vol *p;
- if ((nr_ch == 3)
- || ((dir == SNDRV_PCM_STREAM_CAPTURE) && (nr_ch > 2)))
- return -EBUSY;
-
if (dma >= 0) {
en = 0;
vortex_adb_checkinout(vortex,
@@ -2250,6 +2246,14 @@ vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type)
MIX_DEFIGAIN);
#endif
}
+ if (stream->type == VORTEX_PCM_ADB && en) {
+ p = &vortex->pcm_vol[subdev];
+ p->dma = dma;
+ for (i = 0; i < nr_ch; i++)
+ p->mixin[i] = mix[i];
+ for (i = 0; i < ch_top; i++)
+ p->vol[i] = 0;
+ }
}
#ifndef CHIP_AU8820
else {
diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index 0ef2f9712208..e59f120742a4 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -122,6 +122,18 @@ static struct snd_pcm_hw_constraint_list hw_constraints_au8830_channels = {
.mask = 0,
};
#endif
+
+static void vortex_notify_pcm_vol_change(struct snd_card *card,
+ struct snd_kcontrol *kctl, int activate)
+{
+ if (activate)
+ kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ else
+ kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE |
+ SNDRV_CTL_EVENT_MASK_INFO, &(kctl->id));
+}
+
/* open callback */
static int snd_vortex_pcm_open(struct snd_pcm_substream *substream)
{
@@ -230,12 +242,14 @@ snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream,
if (stream != NULL)
vortex_adb_allocroute(chip, stream->dma,
stream->nr_ch, stream->dir,
- stream->type);
+ stream->type,
+ substream->number);
/* Alloc routes. */
dma =
vortex_adb_allocroute(chip, -1,
params_channels(hw_params),
- substream->stream, type);
+ substream->stream, type,
+ substream->number);
if (dma < 0) {
spin_unlock_irq(&chip->lock);
return dma;
@@ -246,6 +260,11 @@ snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream,
vortex_adbdma_setbuffers(chip, dma,
params_period_bytes(hw_params),
params_periods(hw_params));
+ if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
+ chip->pcm_vol[substream->number].active = 1;
+ vortex_notify_pcm_vol_change(chip->card,
+ chip->pcm_vol[substream->number].kctl, 1);
+ }
}
#ifndef CHIP_AU8810
else {
@@ -275,10 +294,18 @@ static int snd_vortex_pcm_hw_free(struct snd_pcm_substream *substream)
spin_lock_irq(&chip->lock);
// Delete audio routes.
if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
- if (stream != NULL)
+ if (stream != NULL) {
+ if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
+ chip->pcm_vol[substream->number].active = 0;
+ vortex_notify_pcm_vol_change(chip->card,
+ chip->pcm_vol[substream->number].kctl,
+ 0);
+ }
vortex_adb_allocroute(chip, stream->dma,
stream->nr_ch, stream->dir,
- stream->type);
+ stream->type,
+ substream->number);
+ }
}
#ifndef CHIP_AU8810
else {
@@ -506,6 +533,83 @@ static struct snd_kcontrol_new snd_vortex_mixer_spdif[] __devinitdata = {
},
};
+/* subdevice PCM Volume control */
+
+static int snd_vortex_pcm_vol_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ vortex_t *vortex = snd_kcontrol_chip(kcontrol);
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
+ uinfo->value.integer.min = -128;
+ uinfo->value.integer.max = 32;
+ return 0;
+}
+
+static int snd_vortex_pcm_vol_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int i;
+ vortex_t *vortex = snd_kcontrol_chip(kcontrol);
+ int subdev = kcontrol->id.subdevice;
+ struct pcm_vol *p = &vortex->pcm_vol[subdev];
+ int max_chn = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
+ for (i = 0; i < max_chn; i++)
+ ucontrol->value.integer.value[i] = p->vol[i];
+ return 0;
+}
+
+static int snd_vortex_pcm_vol_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int i;
+ int changed = 0;
+ int mixin;
+ unsigned char vol;
+ vortex_t *vortex = snd_kcontrol_chip(kcontrol);
+ int subdev = kcontrol->id.subdevice;
+ struct pcm_vol *p = &vortex->pcm_vol[subdev];
+ int max_chn = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
+ for (i = 0; i < max_chn; i++) {
+ if (p->vol[i] != ucontrol->value.integer.value[i]) {
+ p->vol[i] = ucontrol->value.integer.value[i];
+ if (p->active) {
+ switch (vortex->dma_adb[p->dma].nr_ch) {
+ case 1:
+ mixin = p->mixin[0];
+ break;
+ case 2:
+ default:
+ mixin = p->mixin[(i < 2) ? i : (i - 2)];
+ break;
+ case 4:
+ mixin = p->mixin[i];
+ break;
+ };
+ vol = p->vol[i];
+ vortex_mix_setinputvolumebyte(vortex,
+ vortex->mixplayb[i], mixin, vol);
+ }
+ changed = 1;
+ }
+ }
+ return changed;
+}
+
+static const DECLARE_TLV_DB_MINMAX(vortex_pcm_vol_db_scale, -9600, 2400);
+
+static struct snd_kcontrol_new snd_vortex_pcm_vol __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "PCM Playback Volume",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE,
+ .info = snd_vortex_pcm_vol_info,
+ .get = snd_vortex_pcm_vol_get,
+ .put = snd_vortex_pcm_vol_put,
+ .tlv = { .p = vortex_pcm_vol_db_scale },
+};
+
/* create a pcm device */
static int __devinit snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
{
@@ -555,5 +659,20 @@ static int __devinit snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
return err;
}
}
+ if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_ADB) {
+ for (i = 0; i < NR_PCM; i++) {
+ chip->pcm_vol[i].active = 0;
+ chip->pcm_vol[i].dma = -1;
+ kctl = snd_ctl_new1(&snd_vortex_pcm_vol, chip);
+ if (!kctl)
+ return -ENOMEM;
+ chip->pcm_vol[i].kctl = kctl;
+ kctl->id.device = 0;
+ kctl->id.subdevice = i;
+ err = snd_ctl_add(chip->card, kctl);
+ if (err < 0)
+ return err;
+ }
+ }
return 0;
}