Changeset 2e01b3f in mainline for uspace/lib/drv/include/audio_pcm_iface.h

Timestamp:

2012-07-19T17:43:47Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f0241bda

Parents:

c5cbc1b7

Message:

libdrv: Add method to query audio capabilities.

File:

• uspace/lib/drv/include/audio_pcm_iface.h (modified) (3 diffs)

uspace/lib/drv/include/audio_pcm_iface.h

@@ -44 +44 @@
 #include "ddf/driver.h"
 
+typedef enum {
+        AUDIO_CAP_RECORD,
+        AUDIO_CAP_PLAYBACK,
+        AUDIO_CAP_MAX_BUFFER,
+        AUDIO_CAP_BUFFER_POS,
+        AUDIO_CAP_INTERRUPT,
+        AUDIO_CAP_INTERRUPT_MIN_FRAMES,
+        AUDIO_CAP_INTERRUPT_MAX_FRAMES,
+} audio_cap_t;
+
 enum {
         PCM_EVENT_FRAMES_PLAYED = IPC_FIRST_USER_METHOD,
@@ -60 +70 @@
 int audio_pcm_test_format(audio_pcm_sess_t *, unsigned *, unsigned *,
     pcm_sample_format_t *);
+int audio_pcm_query_cap(audio_pcm_sess_t *, audio_cap_t, unsigned *);
 
 int audio_pcm_get_buffer(audio_pcm_sess_t *, void **, size_t *,
@@ -78 +89 @@
         int (*test_format)(ddf_fun_t *, unsigned *, unsigned *,
             pcm_sample_format_t *);
+        unsigned (*query_cap)(ddf_fun_t *, audio_cap_t);
         int (*get_buffer)(ddf_fun_t *, void **, size_t *);
         int (*release_buffer)(ddf_fun_t *);