Changeset f0241bda in mainline

Timestamp:

2012-08-17T16:57:29Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

82e4005

Parents:

2e01b3f

Message:

sb16: Implement capabilities query.

Location:

uspace/drv/audio/sb16

Files:

• dsp.c (modified) (1 diff)
• dsp.h (modified) (2 diffs)
• pcm_iface.c (modified) (2 diffs)

uspace/drv/audio/sb16/dsp.c

@@ -227 +227 @@
 }
 
+unsigned sb_dsp_query_cap(sb_dsp_t *dsp, audio_cap_t cap)
+{
+        switch(cap) {
+        case AUDIO_CAP_RECORD:
+        case AUDIO_CAP_PLAYBACK:
+        case AUDIO_CAP_INTERRUPT:
+                return 1;
+        case AUDIO_CAP_MAX_BUFFER:
+                return MAX_BUFFER_SIZE;
+        case AUDIO_CAP_INTERRUPT_MIN_FRAMES:
+                return 1;
+        case AUDIO_CAP_INTERRUPT_MAX_FRAMES:
+                return 16535;
+        case AUDIO_CAP_BUFFER_POS:
+        default:
+                return 0;
+        }
+}
+
 int sb_dsp_test_format(sb_dsp_t *dsp, unsigned *channels, unsigned *rate,
   pcm_sample_format_t *format)

uspace/drv/audio/sb16/dsp.h

@@ -39 +39 @@
 #include <errno.h>
 #include <pcm/sample_format.h>
+#include <audio_pcm_iface.h>
 
 #include "registers.h"
@@ -72 +73 @@
     int dma8, int dma16);
 void sb_dsp_interrupt(sb_dsp_t *dsp);
-
+unsigned sb_dsp_query_cap(sb_dsp_t *dsp, audio_cap_t cap);
 int sb_dsp_test_format(sb_dsp_t *dsp, unsigned *channels, unsigned *rate,
   pcm_sample_format_t *format);

uspace/drv/audio/sb16/pcm_iface.c

@@ -46 +46 @@
         return EOK;
 }
+
+static unsigned sb_query_cap(ddf_fun_t *fun, audio_cap_t cap)
+{
+        assert(fun);
+        assert(fun->driver_data);
+        sb_dsp_t *dsp = fun->driver_data;
+        return sb_dsp_query_cap(dsp, cap);
+}
+
 static int sb_test_format(ddf_fun_t *fun, unsigned *channels, unsigned *rate,
     pcm_sample_format_t *format)
@@ -116 +125 @@
         .get_info_str = sb_get_info_str,
         .test_format = sb_test_format,
+        .query_cap = sb_query_cap,
 
         .get_buffer = sb_get_buffer,