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cmd_sound.c 1.55 KiB
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  • /*
     * Copyright (C) 2012 Samsung Electronics
     * Rajeshwari Shinde <rajeshwari.s@samsung.com>
     *
    
     * SPDX-License-Identifier:	GPL-2.0+
    
     */
    
    #include <common.h>
    #include <command.h>
    #include <fdtdec.h>
    #include <sound.h>
    
    DECLARE_GLOBAL_DATA_PTR;
    
    /* Initilaise sound subsystem */
    static int do_init(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
    {
    	int ret;
    
    
    	ret = sound_init(gd->fdt_blob);
    
    	if (ret) {
    		printf("Initialise Audio driver failed\n");
    		return CMD_RET_FAILURE;
    	}
    
    	return 0;
    }
    
    /* play sound from buffer */
    static int do_play(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
    {
    	int ret = 0;
    	int msec = 1000;
    	int freq = 400;
    
    	if (argc > 1)
    		msec = simple_strtoul(argv[1], NULL, 10);
    	if (argc > 2)
    		freq = simple_strtoul(argv[2], NULL, 10);
    
    	ret = sound_play(msec, freq);
    	if (ret) {
    		printf("play failed");
    		return CMD_RET_FAILURE;
    	}
    
    	return 0;
    }
    
    static cmd_tbl_t cmd_sound_sub[] = {
    	U_BOOT_CMD_MKENT(init, 0, 1, do_init, "", ""),
    	U_BOOT_CMD_MKENT(play, 2, 1, do_play, "", ""),
    };
    
    /* process sound command */
    static int do_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
    {
    	cmd_tbl_t *c;
    
    	if (argc < 1)
    		return CMD_RET_USAGE;
    
    	/* Strip off leading 'sound' command argument */
    	argc--;
    	argv++;
    
    	c = find_cmd_tbl(argv[0], &cmd_sound_sub[0], ARRAY_SIZE(cmd_sound_sub));
    
    	if (c)
    		return c->cmd(cmdtp, flag, argc, argv);
    	else
    		return CMD_RET_USAGE;
    }
    
    U_BOOT_CMD(
    	sound, 4, 1, do_sound,
    	"sound sub-system",
    	"init - initialise the sound driver\n"
    	"sound play [len] [freq] - play a sound for len ms at freq hz\n"
    );