mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
143 lines
2.6 KiB
C
143 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2017 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <dm.h>
|
|
#include <led.h>
|
|
#include <dm/uclass-internal.h>
|
|
|
|
#define LED_TOGGLE LEDST_COUNT
|
|
|
|
static const char *const state_label[] = {
|
|
[LEDST_OFF] = "off",
|
|
[LEDST_ON] = "on",
|
|
[LEDST_TOGGLE] = "toggle",
|
|
#ifdef CONFIG_LED_BLINK
|
|
[LEDST_BLINK] = "blink",
|
|
#endif
|
|
};
|
|
|
|
enum led_state_t get_led_cmd(char *var)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < LEDST_COUNT; i++) {
|
|
if (!strncmp(var, state_label[i], strlen(var)))
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int show_led_state(struct udevice *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = led_get_state(dev);
|
|
if (ret >= LEDST_COUNT)
|
|
ret = -EINVAL;
|
|
if (ret >= 0)
|
|
printf("%s\n", state_label[ret]);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int list_leds(void)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
for (uclass_find_first_device(UCLASS_LED, &dev);
|
|
dev;
|
|
uclass_find_next_device(&dev)) {
|
|
struct led_uc_plat *plat = dev_get_uclass_platdata(dev);
|
|
|
|
if (!plat->label)
|
|
continue;
|
|
printf("%-15s ", plat->label);
|
|
if (device_active(dev)) {
|
|
ret = show_led_state(dev);
|
|
if (ret < 0)
|
|
printf("Error %d\n", ret);
|
|
} else {
|
|
printf("<inactive>\n");
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int do_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
enum led_state_t cmd;
|
|
const char *led_label;
|
|
struct udevice *dev;
|
|
#ifdef CONFIG_LED_BLINK
|
|
int freq_ms = 0;
|
|
#endif
|
|
int ret;
|
|
|
|
/* Validate arguments */
|
|
if (argc < 2)
|
|
return CMD_RET_USAGE;
|
|
led_label = argv[1];
|
|
if (*led_label == 'l')
|
|
return list_leds();
|
|
|
|
cmd = argc > 2 ? get_led_cmd(argv[2]) : LEDST_COUNT;
|
|
#ifdef CONFIG_LED_BLINK
|
|
if (cmd == LEDST_BLINK) {
|
|
if (argc < 4)
|
|
return CMD_RET_USAGE;
|
|
freq_ms = simple_strtoul(argv[3], NULL, 10);
|
|
}
|
|
#endif
|
|
ret = led_get_by_label(led_label, &dev);
|
|
if (ret) {
|
|
printf("LED '%s' not found (err=%d)\n", led_label, ret);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
switch (cmd) {
|
|
case LEDST_OFF:
|
|
case LEDST_ON:
|
|
case LEDST_TOGGLE:
|
|
ret = led_set_state(dev, cmd);
|
|
break;
|
|
#ifdef CONFIG_LED_BLINK
|
|
case LEDST_BLINK:
|
|
ret = led_set_period(dev, freq_ms);
|
|
if (!ret)
|
|
ret = led_set_state(dev, LEDST_BLINK);
|
|
break;
|
|
#endif
|
|
case LEDST_COUNT:
|
|
printf("LED '%s': ", led_label);
|
|
ret = show_led_state(dev);
|
|
break;
|
|
}
|
|
if (ret < 0) {
|
|
printf("LED '%s' operation failed (err=%d)\n", led_label, ret);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_LED_BLINK
|
|
#define BLINK "|blink [blink-freq in ms]"
|
|
#else
|
|
#define BLINK ""
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
led, 4, 1, do_led,
|
|
"manage LEDs",
|
|
"<led_label> on|off|toggle" BLINK "\tChange LED state\n"
|
|
"led [<led_label>\tGet LED state\n"
|
|
"led list\t\tshow a list of LEDs"
|
|
);
|