ALSA: Implement channel maps for standard onboard AC97 drivers

Just set the channel maps depending on the hardware availability.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

4 files changed, 59 insertions, 0 deletions

diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index c744df5bb1c6..368df8b0853e 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1250,6 +1250,7 @@ static struct atiixp_dma_ops snd_atiixp_spdif_dma_ops = {
 static int __devinit snd_atiixp_pcm_new(struct atiixp *chip)
 {
         struct snd_pcm *pcm;
+        struct snd_pcm_chmap *chmap;
         struct snd_ac97_bus *pbus = chip->ac97_bus;
         int err, i, num_pcms;
 
@@ -1293,6 +1294,14 @@ static int __devinit snd_atiixp_pcm_new(struct atiixp *chip)
                                               snd_dma_pci_data(chip->pci),
                                               64*1024, 128*1024);
 
+        err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+                                     snd_pcm_alt_chmaps, chip->max_channels, 0,
+                                     &chmap);
+        if (err < 0)
+                return err;
+        chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
+        chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
         /* no SPDIF support on codec? */
         if (chip->pcms[ATI_PCM_SPDIF] && ! chip->pcms[ATI_PCM_SPDIF]->rates)
                 return 0;
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index ce3e548de41d..cc2e91d15538 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -711,6 +711,13 @@ static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pc
                                               snd_dma_pci_data(chip->pci),
                                               chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 
+        err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+                                     snd_pcm_alt_chmaps,
+                                     chip->multichannel ? 6 : 2, 0,
+                                     NULL);
+        if (err < 0)
+                return err;
+
         if (rpcm)
                 *rpcm = pcm;
         return 0;
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 5c4115289a9a..848102e5d864 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -1541,6 +1541,26 @@ static int __devinit snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
                                               snd_dma_pci_data(chip->pci),
                                               rec->prealloc_size, rec->prealloc_max_size);
 
+        if (rec->ac97_idx == ICHD_PCMOUT && rec->playback_ops) {
+                struct snd_pcm_chmap *chmap;
+                int chs = 2;
+                if (rec->ac97_idx == ICHD_PCMOUT) {
+                        if (chip->multi8)
+                                chs = 8;
+                        else if (chip->multi6)
+                                chs = 6;
+                        else if (chip->multi4)
+                                chs = 4;
+                }
+                err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+                                             snd_pcm_alt_chmaps, chs, 0,
+                                             &chmap);
+                if (err < 0)
+                        return err;
+                chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
+                chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+        }
+
         return 0;
 }
 
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index e3d32e2d574e..f0b4efdb483c 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -1440,6 +1440,7 @@ static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
 {
         struct snd_pcm *pcm;
+        struct snd_pcm_chmap *chmap;
         int i, err;
 
         chip->playback_devno = 0;       /* x 4 */
@@ -1467,6 +1468,12 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
                                               snd_dma_pci_data(chip->pci),
                                               64*1024, VIA_MAX_BUFSIZE);
 
+        err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+                                     snd_pcm_std_chmaps, 2, 0,
+                                     &chmap);
+        if (err < 0)
+                return err;
+
         /* PCM #1:  multi-channel playback and 2nd capture */
         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
         if (err < 0)
@@ -1484,6 +1491,14 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
                                               snd_dma_pci_data(chip->pci),
                                               64*1024, VIA_MAX_BUFSIZE);
+
+        err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+                                     snd_pcm_alt_chmaps, 6, 0,
+                                     &chmap);
+        if (err < 0)
+                return err;
+        chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
         return 0;
 }
 
@@ -1493,6 +1508,7 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
 {
         struct snd_pcm *pcm;
+        struct snd_pcm_chmap *chmap;
         int err;
 
         chip->multi_devno = 0;
@@ -1519,6 +1535,13 @@ static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
                                               snd_dma_pci_data(chip->pci),
                                               64*1024, VIA_MAX_BUFSIZE);
 
+        err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+                                     snd_pcm_alt_chmaps, 6, 0,
+                                     &chmap);
+        if (err < 0)
+                return err;
+        chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
         /* SPDIF supported? */
         if (! ac97_can_spdif(chip->ac97))
                 return 0;