Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6330079fc6df4a0829f952b73c4d4999e56034f8
Commit:     6330079fc6df4a0829f952b73c4d4999e56034f8
Parent:     09a99959180d25f4e5070f902e3adc1b20439cd6
Author:     Takashi Iwai <[EMAIL PROTECTED]>
AuthorDate: Thu Jan 24 15:31:36 2008 +0100
Committer:  Jaroslav Kysela <[EMAIL PROTECTED]>
CommitDate: Thu Jan 31 17:30:13 2008 +0100

    [ALSA] hda-codec - Fix handling of multiple capture streams
    
    Fixed the bug that multiple capture streams conflict on Realtek codec
    routines.
    Also, this adds a framework to enable the alternative playback stream,
    e.g. for VoIP.  It's not fully implemented yet, though.
    
    Signed-off-by: Takashi Iwai <[EMAIL PROTECTED]>
    Signed-off-by: Jaroslav Kysela <[EMAIL PROTECTED]>
---
 sound/pci/hda/patch_realtek.c |   85 ++++++++++++++++++++++++++++-------------
 1 files changed, 58 insertions(+), 27 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6f652af..c08852a 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -220,6 +220,8 @@ struct alc_spec {
        char *stream_name_analog;       /* analog PCM stream */
        struct hda_pcm_stream *stream_analog_playback;
        struct hda_pcm_stream *stream_analog_capture;
+       struct hda_pcm_stream *stream_analog_alt_playback;
+       struct hda_pcm_stream *stream_analog_alt_capture;
 
        char *stream_name_digital;      /* digital PCM stream */
        struct hda_pcm_stream *stream_digital_playback;
@@ -230,6 +232,7 @@ struct alc_spec {
                                         * max_channels, dacs must be set
                                         * dig_out_nid and hp_nid are optional
                                         */
+       hda_nid_t alt_dac_nid;
 
        /* capture */
        unsigned int num_adc_nids;
@@ -2370,7 +2373,7 @@ static int alc880_dig_playback_pcm_close(struct 
hda_pcm_stream *hinfo,
 /*
  * Analog capture
  */
-static int alc880_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
+static int alc880_alt_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
                                      struct hda_codec *codec,
                                      unsigned int stream_tag,
                                      unsigned int format,
@@ -2378,18 +2381,18 @@ static int alc880_capture_pcm_prepare(struct 
hda_pcm_stream *hinfo,
 {
        struct alc_spec *spec = codec->spec;
 
-       snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number],
+       snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number + 1],
                                   stream_tag, 0, format);
        return 0;
 }
 
-static int alc880_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
+static int alc880_alt_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                      struct hda_codec *codec,
                                      struct snd_pcm_substream *substream)
 {
        struct alc_spec *spec = codec->spec;
 
-       snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number],
+       snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number + 1],
                                   0, 0, 0);
        return 0;
 }
@@ -2410,13 +2413,27 @@ static struct hda_pcm_stream alc880_pcm_analog_playback 
= {
 };
 
 static struct hda_pcm_stream alc880_pcm_analog_capture = {
-       .substreams = 2,
+       .substreams = 1,
+       .channels_min = 2,
+       .channels_max = 2,
+       /* NID is set in alc_build_pcms */
+};
+
+static struct hda_pcm_stream alc880_pcm_analog_alt_playback = {
+       .substreams = 1,
+       .channels_min = 2,
+       .channels_max = 2,
+       /* NID is set in alc_build_pcms */
+};
+
+static struct hda_pcm_stream alc880_pcm_analog_alt_capture = {
+       .substreams = 2, /* can be overridden */
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in alc_build_pcms */
        .ops = {
-               .prepare = alc880_capture_pcm_prepare,
-               .cleanup = alc880_capture_pcm_cleanup
+               .prepare = alc880_alt_capture_pcm_prepare,
+               .cleanup = alc880_alt_capture_pcm_cleanup
        },
 };
 
@@ -2440,7 +2457,7 @@ static struct hda_pcm_stream alc880_pcm_digital_capture = 
{
 };
 
 /* Used by alc_build_pcms to flag that a PCM has no playback stream */
-static struct hda_pcm_stream alc_pcm_null_playback = {
+static struct hda_pcm_stream alc_pcm_null_stream = {
        .substreams = 0,
        .channels_min = 0,
        .channels_max = 0,
@@ -2497,17 +2514,32 @@ static int alc_build_pcms(struct hda_codec *codec)
         * model, configure a second analog capture-only PCM.
         */
        /* Additional Analaog capture for index #2 */
-       if (spec->num_adc_nids > 1 && spec->stream_analog_capture &&
-           spec->adc_nids) {
+       if ((spec->alt_dac_nid && spec->stream_analog_alt_playback) ||
+           (spec->num_adc_nids > 1 && spec->stream_analog_alt_capture)) {
                codec->num_pcms = 3;
                info = spec->pcm_rec + 2;
                info->name = spec->stream_name_analog;
-               /* No playback stream for second PCM */
-               info->stream[SNDRV_PCM_STREAM_PLAYBACK] = alc_pcm_null_playback;
-               info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = 0;
-               if (spec->stream_analog_capture) {
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE] = 
*(spec->stream_analog_capture);
-                       info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = 
spec->adc_nids[1];
+               if (spec->alt_dac_nid) {
+                       info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
+                               *spec->stream_analog_alt_playback;
+                       info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
+                               spec->alt_dac_nid;
+               } else {
+                       info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
+                               alc_pcm_null_stream;
+                       info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = 0;
+               }
+               if (spec->num_adc_nids > 1) {
+                       info->stream[SNDRV_PCM_STREAM_CAPTURE] =
+                               *spec->stream_analog_alt_capture;
+                       info->stream[SNDRV_PCM_STREAM_CAPTURE].nid =
+                               spec->adc_nids[1];
+                       info->stream[SNDRV_PCM_STREAM_CAPTURE].substreams =
+                               spec->num_adc_nids - 1;
+               } else {
+                       info->stream[SNDRV_PCM_STREAM_CAPTURE] =
+                               alc_pcm_null_stream;
+                       info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = 0;
                }
        }
 
@@ -3615,6 +3647,7 @@ static int patch_alc880(struct hda_codec *codec)
        spec->stream_name_analog = "ALC880 Analog";
        spec->stream_analog_playback = &alc880_pcm_analog_playback;
        spec->stream_analog_capture = &alc880_pcm_analog_capture;
+       spec->stream_analog_alt_capture = &alc880_pcm_analog_alt_capture;
 
        spec->stream_name_digital = "ALC880 Digital";
        spec->stream_digital_playback = &alc880_pcm_digital_playback;
@@ -4527,17 +4560,8 @@ static struct hda_verb alc260_test_init_verbs[] = {
 };
 #endif
 
-static struct hda_pcm_stream alc260_pcm_analog_playback = {
-       .substreams = 1,
-       .channels_min = 2,
-       .channels_max = 2,
-};
-
-static struct hda_pcm_stream alc260_pcm_analog_capture = {
-       .substreams = 1,
-       .channels_min = 2,
-       .channels_max = 2,
-};
+#define alc260_pcm_analog_playback     alc880_pcm_analog_alt_playback
+#define alc260_pcm_analog_capture      alc880_pcm_analog_capture
 
 #define alc260_pcm_digital_playback    alc880_pcm_digital_playback
 #define alc260_pcm_digital_capture     alc880_pcm_digital_capture
@@ -6204,6 +6228,9 @@ static int patch_alc882(struct hda_codec *codec)
        spec->stream_name_analog = "ALC882 Analog";
        spec->stream_analog_playback = &alc882_pcm_analog_playback;
        spec->stream_analog_capture = &alc882_pcm_analog_capture;
+       /* FIXME: setup DAC5 */
+       /*spec->stream_analog_alt_playback = &alc880_pcm_analog_alt_playback;*/
+       spec->stream_analog_alt_capture = &alc880_pcm_analog_alt_capture;
 
        spec->stream_name_digital = "ALC882 Digital";
        spec->stream_digital_playback = &alc882_pcm_digital_playback;
@@ -7409,6 +7436,7 @@ static struct snd_kcontrol_new alc883_capture_mixer[] = {
 /* pcm configuration: identiacal with ALC880 */
 #define alc883_pcm_analog_playback     alc880_pcm_analog_playback
 #define alc883_pcm_analog_capture      alc880_pcm_analog_capture
+#define alc883_pcm_analog_alt_capture  alc880_pcm_analog_alt_capture
 #define alc883_pcm_digital_playback    alc880_pcm_digital_playback
 #define alc883_pcm_digital_capture     alc880_pcm_digital_capture
 
@@ -7894,6 +7922,7 @@ static int patch_alc883(struct hda_codec *codec)
        spec->stream_name_analog = "ALC883 Analog";
        spec->stream_analog_playback = &alc883_pcm_analog_playback;
        spec->stream_analog_capture = &alc883_pcm_analog_capture;
+       spec->stream_analog_alt_capture = &alc883_pcm_analog_alt_capture;
 
        spec->stream_name_digital = "ALC883 Digital";
        spec->stream_digital_playback = &alc883_pcm_digital_playback;
@@ -9821,6 +9850,7 @@ static void alc268_auto_init_mono_speaker_out(struct 
hda_codec *codec)
 /* pcm configuration: identiacal with ALC880 */
 #define alc268_pcm_analog_playback     alc880_pcm_analog_playback
 #define alc268_pcm_analog_capture      alc880_pcm_analog_capture
+#define alc268_pcm_analog_alt_capture  alc880_pcm_analog_alt_capture
 #define alc268_pcm_digital_playback    alc880_pcm_digital_playback
 
 /*
@@ -10022,6 +10052,7 @@ static int patch_alc268(struct hda_codec *codec)
        spec->stream_name_analog = "ALC268 Analog";
        spec->stream_analog_playback = &alc268_pcm_analog_playback;
        spec->stream_analog_capture = &alc268_pcm_analog_capture;
+       spec->stream_analog_alt_capture = &alc268_pcm_analog_alt_capture;
 
        spec->stream_name_digital = "ALC268 Digital";
        spec->stream_digital_playback = &alc268_pcm_digital_playback;
-
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