Changeset a3ab774 in mainline for uspace/lib/drv/generic/remote_audio_pcm_buffer.c

Timestamp:

2012-07-07T21:26:04Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

e1b7e36

Parents:

ef246b9

Message:

libdrv/audio,drv/audio/sb16: Update and implement recording interface.

Untested.

File:

• uspace/lib/drv/generic/remote_audio_pcm_buffer.c (modified) (2 diffs)

uspace/lib/drv/generic/remote_audio_pcm_buffer.c

@@ -140 +140 @@
 
 int audio_pcm_buffer_start_record(async_exch_t *exch, unsigned id,
-    unsigned sample_rate, unsigned sample_size, unsigned channels, bool sign)
-{
-        if (!exch || sample_size > UINT16_MAX || channels > (UINT16_MAX >> 1))
-                return EINVAL;
-        sysarg_t packed = sample_size << 16 | channels << 1 | sign ? 1 : 0;
+    unsigned parts, unsigned sample_rate, uint16_t sample_size,
+    uint8_t channels, bool sign)
+{
+        if (!exch)
+                return EINVAL;
+        sysarg_t packed =
+            (sample_size << 16) | (channels << 8) |
+            ((parts & 0x7f) << 1) | (sign ? 1 : 0);
         return async_req_4_0(exch, DEV_IFACE_ID(AUDIO_PCM_BUFFER_IFACE),
             IPC_M_AUDIO_PCM_START_RECORD, id, sample_rate, packed);
@@ -336 +339 @@
         const unsigned rate = DEV_IPC_GET_ARG2(*call);
         const unsigned size = DEV_IPC_GET_ARG3(*call) >> 16;
-        const unsigned channels = (DEV_IPC_GET_ARG3(*call) & UINT16_MAX) >> 1;
+        const unsigned channels = (DEV_IPC_GET_ARG3(*call) >> 8) & UINT8_MAX;
+        const unsigned parts = (DEV_IPC_GET_ARG3(*call) >> 1) & 0x7f;
         const bool sign = (bool)(DEV_IPC_GET_ARG3(*call) & 1);
 
         const int ret = pcm_iface->start_record
-            ? pcm_iface->start_record(fun, id, rate, size, channels, sign)
+            ? pcm_iface->start_record(fun, id, parts, rate, size, channels, sign)
             : ENOTSUP;
         async_answer_0(callid, ret);