mirror of
https://github.com/AsahiLinux/u-boot
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caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
142 lines
2.7 KiB
C
142 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2017 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <led.h>
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#include <dm/uclass-internal.h>
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#define LED_TOGGLE LEDST_COUNT
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static const char *const state_label[] = {
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[LEDST_OFF] = "off",
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[LEDST_ON] = "on",
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[LEDST_TOGGLE] = "toggle",
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#ifdef CONFIG_LED_BLINK
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[LEDST_BLINK] = "blink",
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#endif
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};
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enum led_state_t get_led_cmd(char *var)
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{
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int i;
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for (i = 0; i < LEDST_COUNT; i++) {
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if (!strncmp(var, state_label[i], strlen(var)))
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return i;
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}
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return -1;
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}
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static int show_led_state(struct udevice *dev)
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{
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int ret;
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ret = led_get_state(dev);
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if (ret >= LEDST_COUNT)
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ret = -EINVAL;
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if (ret >= 0)
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printf("%s\n", state_label[ret]);
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return ret;
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}
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static int list_leds(void)
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{
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struct udevice *dev;
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int ret;
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for (uclass_find_first_device(UCLASS_LED, &dev);
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dev;
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uclass_find_next_device(&dev)) {
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struct led_uc_plat *plat = dev_get_uclass_plat(dev);
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if (!plat->label)
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continue;
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printf("%-15s ", plat->label);
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if (device_active(dev)) {
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ret = show_led_state(dev);
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if (ret < 0)
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printf("Error %d\n", ret);
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} else {
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printf("<inactive>\n");
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}
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}
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return 0;
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}
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int do_led(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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enum led_state_t cmd;
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const char *led_label;
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struct udevice *dev;
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#ifdef CONFIG_LED_BLINK
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int freq_ms = 0;
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#endif
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int ret;
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/* Validate arguments */
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if (argc < 2)
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return CMD_RET_USAGE;
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led_label = argv[1];
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if (strncmp(led_label, "list", 4) == 0)
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return list_leds();
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cmd = argc > 2 ? get_led_cmd(argv[2]) : LEDST_COUNT;
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#ifdef CONFIG_LED_BLINK
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if (cmd == LEDST_BLINK) {
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if (argc < 4)
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return CMD_RET_USAGE;
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freq_ms = simple_strtoul(argv[3], NULL, 10);
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}
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#endif
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ret = led_get_by_label(led_label, &dev);
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if (ret) {
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printf("LED '%s' not found (err=%d)\n", led_label, ret);
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return CMD_RET_FAILURE;
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}
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switch (cmd) {
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case LEDST_OFF:
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case LEDST_ON:
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case LEDST_TOGGLE:
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ret = led_set_state(dev, cmd);
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break;
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#ifdef CONFIG_LED_BLINK
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case LEDST_BLINK:
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ret = led_set_period(dev, freq_ms);
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if (!ret)
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ret = led_set_state(dev, LEDST_BLINK);
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break;
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#endif
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case LEDST_COUNT:
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printf("LED '%s': ", led_label);
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ret = show_led_state(dev);
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break;
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}
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if (ret < 0) {
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printf("LED '%s' operation failed (err=%d)\n", led_label, ret);
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return CMD_RET_FAILURE;
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}
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return 0;
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}
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#ifdef CONFIG_LED_BLINK
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#define BLINK "|blink [blink-freq in ms]"
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#else
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#define BLINK ""
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#endif
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U_BOOT_CMD(
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led, 4, 1, do_led,
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"manage LEDs",
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"<led_label> on|off|toggle" BLINK "\tChange LED state\n"
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"led <led_label>\tGet LED state\n"
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"led list\t\tshow a list of LEDs"
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);
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