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// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: © 2021 Ahmad Fatoum
#include <common.h>
#include <command.h>
#include <sound.h>
#include <getopt.h>
static int do_beep(int argc, char *argv[])
{
int ret, i, opt;
u32 tempo, total_us = 0;
bool wait = false;
while((opt = getopt(argc, argv, "wc")) > 0) {
switch(opt) {
case 'w':
wait = true;
break;
case 'c':
return beep_cancel();
default:
return COMMAND_ERROR_USAGE;
}
}
argc -= optind;
argv += optind;
if (argc == 0 || argc % 2 != 1)
return COMMAND_ERROR_USAGE;
ret = kstrtou32(argv[0], 0, &tempo);
if (ret || tempo == 0)
return COMMAND_ERROR_USAGE;
tempo = 60 * USEC_PER_SEC / tempo;
if (argc == 1) {
ret = beep(BELL_DEFAULT_FREQUENCY, tempo);
if (ret)
return ret;
total_us += tempo;
goto out;
}
for (i = 1; i < argc; i += 2) {
u32 pitch = 0, duration;
u16 val;
ret = kstrtou16(argv[i], 0, &val);
if (ret)
return COMMAND_ERROR_USAGE;
if (val)
pitch = clamp_t(unsigned, val, 20, 20000);
ret = kstrtou16(argv[i+1], 0, &val);
if (ret)
return COMMAND_ERROR_USAGE;
duration = val * tempo;
ret = beep(pitch, duration);
if (ret)
return ret;
total_us += duration;
}
out:
if (wait)
beep_wait(total_us);
return 0;
}
/* https://www.gnu.org/software/grub/manual/grub/html_node/play.html */
BAREBOX_CMD_HELP_START(beep)
BAREBOX_CMD_HELP_TEXT("Tempo is an unsigned 32bit number. It's followed by pairs of unsigned")
BAREBOX_CMD_HELP_TEXT("16bit numbers for pitch and duration.")
BAREBOX_CMD_HELP_TEXT("The tempo is the base for all note durations. 60 gives a 1-second base,")
BAREBOX_CMD_HELP_TEXT("120 gives a half-second base, etc. Pitches are Hz.")
BAREBOX_CMD_HELP_TEXT("Set pitch to 0 to produce a rest.")
BAREBOX_CMD_HELP_TEXT("When only tempo is given, a beep of duration 1 at bell frequency results.")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-c", "cancel pending beeps")
BAREBOX_CMD_HELP_OPT ("-w", "wait until beep is over")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(beep)
.cmd = do_beep,
BAREBOX_CMD_DESC("play a GRUB beep tune")
BAREBOX_CMD_OPTS("tempo [pitch1 duration1 [pitch2 duration2] ...]")
BAREBOX_CMD_HELP(cmd_beep_help)
BAREBOX_CMD_GROUP(CMD_GRP_CONSOLE)
BAREBOX_CMD_END
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