Changeset deff6b4 in mainline

Timestamp:

2011-11-25T23:23:50Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

485a496

Parents:

be51d73

Message:

mixerctl: Add support for volume set/get.

File:

• uspace/app/mixerctl/mixerctl.c (modified) (4 diffs)

uspace/app/mixerctl/mixerctl.c

@@ -36 +36 @@
 #include <errno.h>
 #include <str_error.h>
+#include <str.h>
 #include <devman.h>
 #include <audio_mixer_iface.h>
@@ -95 +96 @@
         }
 }
+/*----------------------------------------------------------------------------*/
+static unsigned get_number(const char* str)
+{
+        uint16_t num;
+        str_uint16_t(str, NULL, 10, false, &num);
+        return num;
+}
+/*----------------------------------------------------------------------------*/
+static void set_volume(async_exch_t *exch, int argc, char *argv[])
+{
+        assert(exch);
+        if (argc != 5 && argc != 6) {
+                printf("%s [device] setvolume item channel value\n", argv[0]);
+        }
+        unsigned params = argc == 6 ? 3 : 2;
+        const unsigned item = get_number(argv[params++]);
+        const unsigned channel = get_number(argv[params++]);
+        const unsigned value = get_number(argv[params]);
+        int ret = audio_mixer_channel_volume_set(exch, item, channel, value);
+        if (ret != EOK) {
+                printf("Failed to set mixer volume: %s.\n", str_error(ret));
+                return;
+        }
+        printf("Channel %u-%u volume set to %u.\n", item, channel, value);
+}
+/*----------------------------------------------------------------------------*/
+static void get_volume(async_exch_t *exch, int argc, char *argv[])
+{
+        assert(exch);
+        if (argc != 4 && argc != 5) {
+                printf("%s [device] getvolume item channel\n", argv[0]);
+        }
+        unsigned params = argc == 5 ? 3 : 2;
+        const unsigned item = get_number(argv[params++]);
+        const unsigned channel = get_number(argv[params++]);
+        unsigned value = 0, max = 0;
 
+        int ret = audio_mixer_channel_volume_get(
+            exch, item, channel, &value, &max);
+        if (ret != EOK) {
+                printf("Failed to get mixer volume: %s.\n", str_error(ret));
+                return;
+        }
+        printf("Channel %u-%u volume: %u/%u.\n", item, channel, value, max);
+}
+/*----------------------------------------------------------------------------*/
 int main(int argc, char *argv[])
 {
+        const char *device = DEFAULT_DEVICE;
+        void (*command)(async_exch_t *, int, char*[]) = NULL;
 
-        const char *device = DEFAULT_DEVICE;
-        if (argc == 2)
+        if (argc >= 2 && str_cmp(argv[1], "setvolume") == 0) {
+                command = set_volume;
+                if (argc == 6)
+                        device = argv[1];
+        }
+
+        if (argc >= 2 && str_cmp(argv[1], "getvolume") == 0) {
+                command = get_volume;
+                if (argc == 5)
+                        device = argv[1];
+        }
+
+        if ((argc == 2 && command == NULL))
                 device = argv[1];
 
@@ -108 +167 @@
         if (ret != EOK) {
                 printf("Failed to get device(%s) handle: %s.\n",
-                    DEFAULT_DEVICE, str_error(ret));
+                    device, str_error(ret));
                 return 1;
         }
@@ -126 +185 @@
         }
 
-        print_levels(exch);
+        if (command) {
+                command(exch, argc, argv);
+        } else {
+                print_levels(exch);
+        }
 
         async_exchange_end(exch);