cmd/sound.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2012 Samsung Electronics
   4  * Rajeshwari Shinde <rajeshwari.s@samsung.com>
   5  */
   6
   7 #include <common.h>
   8 #include <command.h>
   9 #include <fdtdec.h>
  10 #include <sound.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 /* Initilaise sound subsystem */
  15 static int do_init(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  16 {
  17         int ret;
  18
  19         ret = sound_init(gd->fdt_blob);
  20         if (ret) {
  21                 printf("Initialise Audio driver failed\n");
  22                 return CMD_RET_FAILURE;
  23         }
  24
  25         return 0;
  26 }
  27
  28 /* play sound from buffer */
  29 static int do_play(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  30 {
  31         int ret = 0;
  32         int msec = 1000;
  33         int freq = 400;
  34
  35         if (argc > 1)
  36                 msec = simple_strtoul(argv[1], NULL, 10);
  37         if (argc > 2)
  38                 freq = simple_strtoul(argv[2], NULL, 10);
  39
  40         ret = sound_play(msec, freq);
  41         if (ret) {
  42                 printf("play failed");
  43                 return CMD_RET_FAILURE;
  44         }
  45
  46         return 0;
  47 }
  48
  49 static cmd_tbl_t cmd_sound_sub[] = {
  50         U_BOOT_CMD_MKENT(init, 0, 1, do_init, "", ""),
  51         U_BOOT_CMD_MKENT(play, 2, 1, do_play, "", ""),
  52 };
  53
  54 /* process sound command */
  55 static int do_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  56 {
  57         cmd_tbl_t *c;
  58
  59         if (argc < 1)
  60                 return CMD_RET_USAGE;
  61
  62         /* Strip off leading 'sound' command argument */
  63         argc--;
  64         argv++;
  65
  66         c = find_cmd_tbl(argv[0], &cmd_sound_sub[0], ARRAY_SIZE(cmd_sound_sub));
  67
  68         if (c)
  69                 return c->cmd(cmdtp, flag, argc, argv);
  70         else
  71                 return CMD_RET_USAGE;
  72 }
  73
  74 U_BOOT_CMD(
  75         sound, 4, 1, do_sound,
  76         "sound sub-system",
  77         "init - initialise the sound driver\n"
  78         "sound play [len] [freq] - play a sound for len ms at freq hz\n"
  79 );