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authorOmair Mohammed Abdullah <omair.m.abdullah@intel.com>2011-12-23 10:36:36 +0530
committerTakashi Iwai <tiwai@suse.de>2011-12-23 10:07:46 +0100
commit3eafc959b32f71d3fe6b27c9eae7495a23acfc3a (patch)
treee2795eaae508fdb0dc69d95cb265005c4dcb94c4
parent57bd9b8ddd434111918d3f7cb0b4297cd77f1b5b (diff)
downloadop-kernel-dev-3eafc959b32f71d3fe6b27c9eae7495a23acfc3a.zip
op-kernel-dev-3eafc959b32f71d3fe6b27c9eae7495a23acfc3a.tar.gz
ALSA: core: add support for compressed devices
Use the minor numbers 2 and 3 for audio compressed offload devices. Also add support for these devices in core Signed-off-by: Omair Mohammed Abdullah <omair.m.abdullah@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--include/sound/core.h1
-rw-r--r--include/sound/minors.h4
-rw-r--r--sound/core/sound.c1
3 files changed, 5 insertions, 1 deletions
diff --git a/include/sound/core.h b/include/sound/core.h
index 3be5ab7..5ab255f 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -62,6 +62,7 @@ typedef int __bitwise snd_device_type_t;
#define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007)
#define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008)
#define SNDRV_DEV_JACK ((__force snd_device_type_t) 0x1009)
+#define SNDRV_DEV_COMPRESS ((__force snd_device_type_t) 0x100A)
#define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000)
typedef int __bitwise snd_device_state_t;
diff --git a/include/sound/minors.h b/include/sound/minors.h
index 8f76420..5978f9a 100644
--- a/include/sound/minors.h
+++ b/include/sound/minors.h
@@ -35,7 +35,7 @@
#define SNDRV_MINOR_TIMER 33 /* SNDRV_MINOR_GLOBAL + 1 * 32 */
#ifndef CONFIG_SND_DYNAMIC_MINORS
- /* 2 - 3 (reserved) */
+#define SNDRV_MINOR_COMPRESS 2 /* 2 - 3 */
#define SNDRV_MINOR_HWDEP 4 /* 4 - 7 */
#define SNDRV_MINOR_RAWMIDI 8 /* 8 - 15 */
#define SNDRV_MINOR_PCM_PLAYBACK 16 /* 16 - 23 */
@@ -49,6 +49,7 @@
#define SNDRV_DEVICE_TYPE_PCM_CAPTURE SNDRV_MINOR_PCM_CAPTURE
#define SNDRV_DEVICE_TYPE_SEQUENCER SNDRV_MINOR_SEQUENCER
#define SNDRV_DEVICE_TYPE_TIMER SNDRV_MINOR_TIMER
+#define SNDRV_DEVICE_TYPE_COMPRESS SNDRV_MINOR_COMPRESS
#else /* CONFIG_SND_DYNAMIC_MINORS */
@@ -60,6 +61,7 @@ enum {
SNDRV_DEVICE_TYPE_RAWMIDI,
SNDRV_DEVICE_TYPE_PCM_PLAYBACK,
SNDRV_DEVICE_TYPE_PCM_CAPTURE,
+ SNDRV_DEVICE_TYPE_COMPRESS,
};
#endif /* CONFIG_SND_DYNAMIC_MINORS */
diff --git a/sound/core/sound.c b/sound/core/sound.c
index 828af35..28f3559 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -229,6 +229,7 @@ static int snd_kernel_minor(int type, struct snd_card *card, int dev)
case SNDRV_DEVICE_TYPE_RAWMIDI:
case SNDRV_DEVICE_TYPE_PCM_PLAYBACK:
case SNDRV_DEVICE_TYPE_PCM_CAPTURE:
+ case SNDRV_DEVICE_TYPE_COMPRESS:
if (snd_BUG_ON(!card))
return -EINVAL;
minor = SNDRV_MINOR(card->number, type + dev);
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