cmd/sound.c

   1 /*
   2  * Copyright (C) 2012 Samsung Electronics
   3  * Rajeshwari Shinde <rajeshwari.s@samsung.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <fdtdec.h>
  11 #include <sound.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 /* Initilaise sound subsystem */
  16 static int do_init(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  17 {
  18         int ret;
  19
  20         ret = sound_init(gd->fdt_blob);
  21         if (ret) {
  22                 printf("Initialise Audio driver failed\n");
  23                 return CMD_RET_FAILURE;
  24         }
  25
  26         return 0;
  27 }
  28
  29 /* play sound from buffer */
  30 static int do_play(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  31 {
  32         int ret = 0;
  33         int msec = 1000;
  34         int freq = 400;
  35
  36         if (argc > 1)
  37                 msec = simple_strtoul(argv[1], NULL, 10);
  38         if (argc > 2)
  39                 freq = simple_strtoul(argv[2], NULL, 10);
  40
  41         ret = sound_play(msec, freq);
  42         if (ret) {
  43                 printf("play failed");
  44                 return CMD_RET_FAILURE;
  45         }
  46
  47         return 0;
  48 }
  49
  50 static cmd_tbl_t cmd_sound_sub[] = {
  51         U_BOOT_CMD_MKENT(init, 0, 1, do_init, "", ""),
  52         U_BOOT_CMD_MKENT(play, 2, 1, do_play, "", ""),
  53 };
  54
  55 /* process sound command */
  56 static int do_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  57 {
  58         cmd_tbl_t *c;
  59
  60         if (argc < 1)
  61                 return CMD_RET_USAGE;
  62
  63         /* Strip off leading 'sound' command argument */
  64         argc--;
  65         argv++;
  66
  67         c = find_cmd_tbl(argv[0], &cmd_sound_sub[0], ARRAY_SIZE(cmd_sound_sub));
  68
  69         if (c)
  70                 return c->cmd(cmdtp, flag, argc, argv);
  71         else
  72                 return CMD_RET_USAGE;
  73 }
  74
  75 U_BOOT_CMD(
  76         sound, 4, 1, do_sound,
  77         "sound sub-system",
  78         "init - initialise the sound driver\n"
  79         "sound play [len] [freq] - play a sound for len ms at freq hz\n"
  80 );