| 1 | /*
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| 2 | * Copyright (c) 2011 Jiri Svoboda
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup mixerctl
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| 30 | * @{
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| 31 | */
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| 32 | /** @file Mixer control for audio devices
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| 33 | */
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| 34 |
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| 35 | #include <errno.h>
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| 36 | #include <str_error.h>
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| 37 | #include <devman.h>
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| 38 | #include <audio_mixer_iface.h>
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| 39 | #include <stdio.h>
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| 40 |
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| 41 | #define DEFAULT_DEVICE "/hw/pci0/00:01.0/sb16/mixer"
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| 42 |
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| 43 | int main(int argc, char *argv[])
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| 44 | {
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| 45 | devman_handle_t mixer_handle;
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| 46 | int ret = devman_fun_get_handle(DEFAULT_DEVICE, &mixer_handle, 0);
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| 47 | if (ret != EOK) {
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| 48 | printf("Failed to get device(%s) handle: %s.\n",
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| 49 | DEFAULT_DEVICE, str_error(ret));
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| 50 | return 1;
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| 51 | }
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| 52 |
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| 53 | async_sess_t *session = devman_device_connect(
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| 54 | EXCHANGE_ATOMIC, mixer_handle, IPC_FLAG_BLOCKING);
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| 55 | if (!session) {
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| 56 | printf("Failed to connect to device.\n");
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| 57 | return 1;
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| 58 | }
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| 59 |
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| 60 | async_exch_t *exch = async_exchange_begin(session);
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| 61 | if (!exch) {
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| 62 | printf("Failed to start session exchange.\n");
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| 63 | async_hangup(session);
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| 64 | return 1;
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| 65 | }
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| 66 |
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| 67 | const char* name = NULL;
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| 68 | unsigned count = 0;
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| 69 | ret = audio_mixer_get_info(exch, &name, &count);
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| 70 | if (ret != EOK) {
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| 71 | printf("Failed to get mixer info: %s.\n", str_error(ret));
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| 72 | return 1;
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| 73 | }
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| 74 | printf("MIXER: %s.\n", name);
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| 75 |
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| 76 | for (unsigned i = 0; i < count; ++i) {
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| 77 | const char *name = NULL;
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| 78 | unsigned channels = 0;
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| 79 | const int ret =
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| 80 | audio_mixer_get_item_info(exch, i, &name, &channels);
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| 81 | if (ret != EOK) {
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| 82 | printf("Failed to get item %u info: %s.\n",
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| 83 | i, str_error(ret));
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| 84 | continue;
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| 85 | }
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| 86 | for (unsigned j = 0; j < channels; ++j) {
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| 87 | const char *chan = NULL;
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| 88 | int ret = audio_mixer_get_channel_info(
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| 89 | exch, i, j, &chan, NULL);
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| 90 | if (ret != EOK) {
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| 91 | printf(
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| 92 | "Failed to get channel %u-%u info: %s.\n",
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| 93 | i, j, str_error(ret));
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| 94 | }
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| 95 | unsigned level = 0, max = 0;
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| 96 | ret = audio_mixer_channel_volume_get(
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| 97 | exch, i, j, &level, &max);
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| 98 | if (ret != EOK) {
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| 99 | printf("Failed to get channel %u-%u volume:"
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| 100 | " %s.\n", i, j, str_error(ret));
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| 101 | }
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| 102 | bool mute = false;
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| 103 | ret = audio_mixer_channel_mute_get(
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| 104 | exch, i, j, &mute);
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| 105 | if (ret != EOK) {
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| 106 | printf("Failed to get channel %u-%u mute"
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| 107 | " status: %s.\n", i, j, str_error(ret));
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| 108 | }
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| 109 |
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| 110 | printf("Channel(%u/%u) %s %s volume: %u/%u%s.\n",
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| 111 | i, j, name, chan, level, max, mute ? " (M)":"");
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| 112 | }
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| 113 |
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| 114 | }
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| 115 |
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| 116 |
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| 117 | async_exchange_end(exch);
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| 118 | async_hangup(session);
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| 119 | return 0;
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| 120 | }
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| 121 |
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| 122 | /** @}
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| 123 | */
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