uspace/app/mixerctl/mixerctl.c

   1 /*
   2  * Copyright (c) 2011 Jan Vesely
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /** @addtogroup mixerctl
  30  * @{
  31  */
  32 /** @file Mixer control for audio devices
  33  */
  34
  35 #include <assert.h>
  36 #include <errno.h>
  37 #include <loc.h>
  38 #include <str_error.h>
  39 #include <str.h>
  40 #include <audio_mixer_iface.h>
  41 #include <stdio.h>
  42
  43 #define DEFAULT_SERVICE "devices/\\hw\\pci0\\00:01.0\\sb16\\control"
  44
  45 /**
  46  * Print volume levels on all channels on all control items.
  47  * @param exch IPC exchange
  48  */
  49 static void print_levels(async_exch_t *exch)
  50 {
  51         char *name = NULL;
  52         unsigned count = 0;
  53         errno_t ret = audio_mixer_get_info(exch, &name, &count);
  54         if (ret != EOK) {
  55                 printf("Failed to get mixer info: %s.\n", str_error(ret));
  56                 return;
  57         }
  58         printf("MIXER %s:\n\n", name);
  59
  60         for (unsigned i = 0; i < count; ++i) {
  61                 char *name = NULL;
  62                 unsigned levels = 0, current = 0;
  63                 errno_t ret =
  64                     audio_mixer_get_item_info(exch, i, &name, &levels);
  65                 if (ret != EOK) {
  66                         printf("Failed to get item %u info: %s.\n",
  67                             i, str_error(ret));
  68                         continue;
  69                 }
  70                 ret = audio_mixer_get_item_level(exch, i, &current);
  71                 if (ret != EOK) {
  72                         printf("Failed to get item %u info: %s.\n",
  73                             i, str_error(ret));
  74                         continue;
  75                 }
  76
  77                 printf("Control item %u `%s' : %u/%u.\n",
  78                     i, name, current, levels - 1);
  79                 free(name);
  80
  81         }
  82 }
  83
  84 static unsigned get_number(const char *str)
  85 {
  86         uint16_t num;
  87         str_uint16_t(str, NULL, 10, false, &num);
  88         return num;
  89 }
  90
  91 static void set_level(async_exch_t *exch, int argc, char *argv[])
  92 {
  93         assert(exch);
  94         if (argc != 4 && argc != 5) {
  95                 printf("%s [device] setlevel item value\n", argv[0]);
  96                 return;
  97         }
  98         unsigned params = argc == 5 ? 3 : 2;
  99         const unsigned item = get_number(argv[params++]);
 100         const unsigned value = get_number(argv[params]);
 101         errno_t ret = audio_mixer_set_item_level(exch, item, value);
 102         if (ret != EOK) {
 103                 printf("Failed to set item level: %s.\n", str_error(ret));
 104                 return;
 105         }
 106         printf("Control item %u new level is %u.\n", item, value);
 107 }
 108
 109 static void get_level(async_exch_t *exch, int argc, char *argv[])
 110 {
 111         assert(exch);
 112         if (argc != 3 && argc != 4) {
 113                 printf("%s [device] getlevel item \n", argv[0]);
 114                 return;
 115         }
 116         unsigned params = argc == 4 ? 3 : 2;
 117         const unsigned item = get_number(argv[params++]);
 118         unsigned value = 0;
 119
 120         errno_t ret = audio_mixer_get_item_level(exch, item, &value);
 121         if (ret != EOK) {
 122                 printf("Failed to get item level: %s.\n", str_error(ret));
 123                 return;
 124         }
 125         printf("Control item %u level: %u.\n", item, value);
 126 }
 127
 128 int main(int argc, char *argv[])
 129 {
 130         const char *service = DEFAULT_SERVICE;
 131         void (*command)(async_exch_t *, int, char *[]) = NULL;
 132
 133         if (argc >= 2 && str_cmp(argv[1], "setlevel") == 0) {
 134                 command = set_level;
 135                 if (argc == 5)
 136                         service = argv[1];
 137         }
 138
 139         if (argc >= 2 && str_cmp(argv[1], "getlevel") == 0) {
 140                 command = get_level;
 141                 if (argc == 4)
 142                         service = argv[1];
 143         }
 144
 145         if ((argc == 2 && command == NULL))
 146                 service = argv[1];
 147
 148         service_id_t mixer_sid;
 149         errno_t rc = loc_service_get_id(service, &mixer_sid, 0);
 150         if (rc != EOK) {
 151                 printf("Failed to resolve service '%s': %s.\n",
 152                     service, str_error(rc));
 153                 return 1;
 154         }
 155
 156         async_sess_t *session = loc_service_connect(mixer_sid, INTERFACE_DDF, 0);
 157         if (!session) {
 158                 printf("Failed connecting mixer service '%s'.\n", service);
 159                 return 1;
 160         }
 161
 162         async_exch_t *exch = async_exchange_begin(session);
 163         if (!exch) {
 164                 printf("Failed to start session exchange.\n");
 165                 async_hangup(session);
 166                 return 1;
 167         }
 168
 169         if (command) {
 170                 command(exch, argc, argv);
 171         } else {
 172                 print_levels(exch);
 173                 printf("\n%s:\n", argv[0]);
 174                 printf("Use '%s getlevel idx' command to read individual "
 175                     "settings\n", argv[0]);
 176                 printf("Use '%s setlevel idx' command to change "
 177                     "settings\n", argv[0]);
 178         }
 179
 180         async_exchange_end(exch);
 181         async_hangup(session);
 182         return 0;
 183 }
 184
 185 /** @}
 186  */