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authorSascha Hauer <s.hauer@pengutronix.de>2017-03-13 10:33:37 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2017-03-30 08:23:20 +0200
commit4422435d32ce9f09cb3433aec07a6248fd07c226 (patch)
tree4374a16968ab2b64b5d0e6ef407ee8ddf03f54ee /commands/led.c
parentaea9aba24910b8aa89a889e8d826b8dc69d3d48b (diff)
downloadbarebox-4422435d32ce9f09cb3433aec07a6248fd07c226.tar.gz
led: Add blink/flash to led command
The LED framework now supports blinking/flashing LEDs, so add this functionality to the led command. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'commands/led.c')
-rw-r--r--commands/led.c44
1 files changed, 43 insertions, 1 deletions
diff --git a/commands/led.c b/commands/led.c
index 354f74d..a53f0df 100644
--- a/commands/led.c
+++ b/commands/led.c
@@ -29,6 +29,44 @@ static int do_led(int argc, char *argv[])
unsigned long value;
struct led *led;
int ret;
+ int opt;
+ int flash = 0, blink = 0;
+ int blink_on_ms = 500;
+ int blink_off_ms = 500;
+
+ while ((opt = getopt(argc, argv, "fb")) > 0) {
+ switch(opt) {
+ case 'f':
+ flash = 1;
+ break;
+ case 'b':
+ blink = 1;
+ break;
+ }
+ }
+
+ if (flash || blink) {
+ int args = argc - optind;
+
+ if (!args || (flash && blink))
+ return COMMAND_ERROR_USAGE;
+
+ led = led_by_name_or_number(argv[optind]);
+ if (!led) {
+ printf("no such LED: %s\n", argv[optind]);
+ return 1;
+ }
+
+ if (args > 1)
+ blink_on_ms = simple_strtoul(argv[optind + 1], NULL, 0);
+ if (args > 2)
+ blink_off_ms = simple_strtoul(argv[optind + 2], NULL, 0);
+
+ if (flash)
+ return led_flash(led, blink_on_ms);
+ if (blink)
+ return led_blink(led, blink_on_ms, blink_off_ms);
+ }
if (argc == 1) {
int i = 0;
@@ -73,9 +111,13 @@ static int do_led(int argc, char *argv[])
BAREBOX_CMD_HELP_START(led)
BAREBOX_CMD_HELP_TEXT("Control the value of a LED. The exact meaning of VALUE is unspecified,")
BAREBOX_CMD_HELP_TEXT("it can be a brightness, or a color. Most often a value of '1' means on")
-BAREBOX_CMD_HELP_TEXT("and '0' means off.")
+BAREBOX_CMD_HELP_TEXT("and '0' means off. Basic usage is 'led <led> <value>'. LEDs can be given")
+BAREBOX_CMD_HELP_TEXT("by name or number.")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Without arguments the available LEDs are listed.")
+BAREBOX_CMD_HELP_TEXT("Options:")
+BAREBOX_CMD_HELP_OPT ("-b <led> [duration-on-ms] [duration-off-ms]", "blink a LED")
+BAREBOX_CMD_HELP_OPT ("-f <led> [duration-ms]", "flash a LED")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(led)