Changeset 89d3946f in mainline for uspace/lib/hound/src/protocol.c

Timestamp:

2013-03-16T23:46:59Z (11 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

abaef81

Parents:

6b0cfa1

Message:

libhound: Add new client side API skeleton

File:

• uspace/lib/hound/src/protocol.c (modified) (3 diffs)

uspace/lib/hound/src/protocol.c

@@ -34 +34 @@
  * Common USB functions.
  */
+#include <adt/list.h>
 #include <errno.h>
 #include <loc.h>
 #include <str.h>
 #include <stdlib.h>
+#include <stdio.h>
+#include <libarch/types.h>
 
 #include "client.h"
@@ -47 +50 @@
  * CLIENT SIDE
  ***/
+
+typedef struct hound_stream {
+        link_t link;
+        async_exch_t *exch;
+} hound_stream_t;
+
+typedef struct hound_context {
+        async_sess_t *session;
+        const char *name;
+        bool record;
+        list_t stream_list;
+        hound_stream_t *main_stream;
+        struct {
+                pcm_sample_format_t sample;
+                unsigned channels;
+                unsigned rate;
+                size_t bsize;
+        } main_format;
+        unsigned id;
+} hound_context_t;
+
+async_sess_t *hound_get_session(void)
+{
+        service_id_t id = 0;
+        const int ret =
+            loc_service_get_id(HOUND_SERVICE, &id, IPC_FLAG_BLOCKING);
+        if (ret != EOK)
+                return NULL;
+        return loc_service_connect(EXCHANGE_SERIALIZE, id, IPC_FLAG_BLOCKING);
+}
+
+void hound_release_session(async_sess_t *sess)
+{
+        if (sess)
+                async_hangup(sess);
+}
+
+static hound_context_t *hound_context_create(const char *name, bool record,
+    unsigned channels, unsigned rate, pcm_sample_format_t format, size_t bsize)
+{
+        hound_context_t *new_context = malloc(sizeof(hound_context_t));
+        if (new_context) {
+                char *cont_name;
+                int ret = asprintf(&cont_name, "%llu:%s", task_get_id(), name);
+                if (ret < 0) {
+                        free(new_context);
+                        return NULL;
+                }
+                list_initialize(&new_context->stream_list);
+                new_context->name = cont_name;
+                new_context->record = record;
+                new_context->session = hound_get_session();
+                new_context->main_stream = NULL;
+                new_context->main_format.sample = format;
+                new_context->main_format.rate = rate;
+                new_context->main_format.channels = channels;
+                new_context->main_format.bsize = bsize;
+                if (!new_context->session) {
+                        free(new_context->name);
+                        free(new_context);
+                        return NULL;
+                }
+                async_exch_t *exch = async_exchange_begin(new_context->session);
+                //TODO: register context
+                async_exchange_end(exch);
+        }
+        return new_context;
+}
+
+hound_context_t * hound_context_create_playback(const char *name,
+    unsigned channels, unsigned rate, pcm_sample_format_t format, size_t bsize)
+{
+        return hound_context_create(name, false, channels, rate, format, bsize);
+}
+
+hound_context_t * hound_context_create_capture(const char *name,
+    unsigned channels, unsigned rate, pcm_sample_format_t format, size_t bsize)
+{
+        return hound_context_create(name, true, channels, rate, format, bsize);
+}
+
+void hound_context_destroy(hound_context_t *hound)
+{
+        assert(hound);
+}
+
+int hound_context_enable(hound_context_t *hound)
+{
+        assert(hound);
+        return ENOTSUP;
+}
+int hound_context_disable(hound_context_t *hound)
+{
+        assert(hound);
+        return ENOTSUP;
+}
+
+int hound_get_output_targets(const char **names, size_t *count)
+{
+        assert(names);
+        assert(count);
+        return ENOTSUP;
+}
+
+int hound_get_input_targets(const char **names, size_t *count)
+{
+        assert(names);
+        assert(count);
+        return ENOTSUP;
+}
+
+int hound_context_connect_target(hound_context_t *hound, const char* target)
+{
+        assert(hound);
+        return ENOTSUP;
+}
+
+int hound_context_disconnect_target(hound_context_t *hound, const char* target)
+{
+        assert(hound);
+        return ENOTSUP;
+}
+
+int hound_context_set_main_stream_format(hound_context_t *hound,
+    unsigned channels, unsigned rate, pcm_sample_format_t format);
+int hound_write_main_stream(hound_context_t *hound,
+    const void *data, size_t size);
+int hound_read_main_stream(hound_context_t *hound, void *data, size_t size);
+int hound_write_replace_main_stream(hound_context_t *hound,
+    const void *data, size_t size);
+int hound_write_immediate_stream(hound_context_t *hound,
+    const void *data, size_t size);
+
+
+
+
+
+
+
 
 typedef struct {
@@ -64 +206 @@
 
 
-hound_sess_t *hound_get_session(void)
-{
-        service_id_t id = 0;
-        const int ret = loc_service_get_id(HOUND_SERVICE, &id, 0);
-        if (ret != EOK)
-                return NULL;
-        return loc_service_connect(EXCHANGE_SERIALIZE, id, 0);
-}
-void hound_release_session(hound_sess_t *sess)
-{
-        if (sess)
-                async_hangup(sess);
-}
 int hound_register_playback(hound_sess_t *sess, const char *name,
     unsigned channels, unsigned rate, pcm_sample_format_t format,