cmd/sound.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2012 Samsung Electronics
   4  * Rajeshwari Shinde <[email protected]>
   5  */
   6
   7 #include <command.h>
   8 #include <dm.h>
   9 #include <fdtdec.h>
  10 #include <sound.h>
  11 #include <asm/global_data.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 /* Initilaise sound subsystem */
  16 static int do_init(struct cmd_tbl *cmdtp, int flag, int argc,
  17                    char *const argv[])
  18 {
  19         struct udevice *dev;
  20         int ret;
  21
  22         ret = uclass_first_device_err(UCLASS_SOUND, &dev);
  23         if (!ret)
  24                 ret = sound_setup(dev);
  25         if (ret) {
  26                 printf("Initialise Audio driver failed (ret=%d)\n", ret);
  27                 return CMD_RET_FAILURE;
  28         }
  29
  30         return 0;
  31 }
  32
  33 /* play sound from buffer */
  34 static int do_play(struct cmd_tbl *cmdtp, int flag, int argc,
  35                    char *const argv[])
  36 {
  37         struct udevice *dev;
  38         int ret = 0;
  39         int msec = 1000;
  40         int freq = 400;
  41         bool first = true;
  42
  43         ret = uclass_first_device_err(UCLASS_SOUND, &dev);
  44         if (ret)
  45                 goto err;
  46         --argc;
  47         ++argv;
  48         while (argc || first) {
  49                 first = false;
  50                 if (argc) {
  51                         msec = dectoul(argv[0], NULL);
  52                         --argc;
  53                         ++argv;
  54                 }
  55                 if (argc) {
  56                         freq = dectoul(argv[0], NULL);
  57                         --argc;
  58                         ++argv;
  59                 }
  60                 ret = sound_beep(dev, msec, freq);
  61                 if (ret)
  62                         goto err;
  63         }
  64         return 0;
  65
  66 err:
  67         printf("Sound device failed to play (err=%d)\n", ret);
  68         return CMD_RET_FAILURE;
  69 }
  70
  71 static struct cmd_tbl cmd_sound_sub[] = {
  72         U_BOOT_CMD_MKENT(init, 0, 1, do_init, "", ""),
  73         U_BOOT_CMD_MKENT(play, INT_MAX, 1, do_play, "", ""),
  74 };
  75
  76 /* process sound command */
  77 static int do_sound(struct cmd_tbl *cmdtp, int flag, int argc,
  78                     char *const argv[])
  79 {
  80         struct cmd_tbl *c;
  81
  82         if (argc < 1)
  83                 return CMD_RET_USAGE;
  84
  85         /* Strip off leading 'sound' command argument */
  86         argc--;
  87         argv++;
  88
  89         c = find_cmd_tbl(argv[0], &cmd_sound_sub[0], ARRAY_SIZE(cmd_sound_sub));
  90
  91         if (c)
  92                 return c->cmd(cmdtp, flag, argc, argv);
  93         else
  94                 return CMD_RET_USAGE;
  95 }
  96
  97 U_BOOT_CMD(
  98         sound, INT_MAX, 1, do_sound,
  99         "sound sub-system",
 100         "init - initialise the sound driver\n"
 101         "sound play [[[-q|-s] len [freq]] ...] - play sounds\n"
 102         "  len - duration in ms\n"
 103         "  freq - frequency in Hz\n"
 104 );