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 <dm.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         struct udevice *dev;
  19         int ret;
  20
  21         ret = uclass_first_device_err(UCLASS_SOUND, &dev);
  22         if (!ret)
  23                 ret = sound_setup(dev);
  24         if (ret) {
  25                 printf("Initialise Audio driver failed (ret=%d)\n", ret);
  26                 return CMD_RET_FAILURE;
  27         }
  28
  29         return 0;
  30 }
  31
  32 /* play sound from buffer */
  33 static int do_play(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  34 {
  35         struct udevice *dev;
  36         int ret = 0;
  37         int msec = 1000;
  38         int freq = 400;
  39
  40         if (argc > 1)
  41                 msec = simple_strtoul(argv[1], NULL, 10);
  42         if (argc > 2)
  43                 freq = simple_strtoul(argv[2], NULL, 10);
  44
  45         ret = uclass_first_device_err(UCLASS_SOUND, &dev);
  46         if (!ret)
  47                 ret = sound_beep(dev, msec, freq);
  48         if (ret) {
  49                 printf("Sound device failed to play (err=%d)\n", ret);
  50                 return CMD_RET_FAILURE;
  51         }
  52
  53         return 0;
  54 }
  55
  56 static cmd_tbl_t cmd_sound_sub[] = {
  57         U_BOOT_CMD_MKENT(init, 0, 1, do_init, "", ""),
  58         U_BOOT_CMD_MKENT(play, 2, 1, do_play, "", ""),
  59 };
  60
  61 /* process sound command */
  62 static int do_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  63 {
  64         cmd_tbl_t *c;
  65
  66         if (argc < 1)
  67                 return CMD_RET_USAGE;
  68
  69         /* Strip off leading 'sound' command argument */
  70         argc--;
  71         argv++;
  72
  73         c = find_cmd_tbl(argv[0], &cmd_sound_sub[0], ARRAY_SIZE(cmd_sound_sub));
  74
  75         if (c)
  76                 return c->cmd(cmdtp, flag, argc, argv);
  77         else
  78                 return CMD_RET_USAGE;
  79 }
  80
  81 U_BOOT_CMD(
  82         sound, 4, 1, do_sound,
  83         "sound sub-system",
  84         "init - initialise the sound driver\n"
  85         "sound play [len] [freq] - play a sound for len ms at freq hz\n"
  86 );