/*
- * (C) Copyright 2010
- * Jason Kridner <jkridner@beagleboard.org>
+ * Copyright (c) 2017 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
*
- * Based on cmd_led.c patch from:
- * http://www.mail-archive.com/u-boot@lists.denx.de/msg06873.html
- * (C) Copyright 2008
- * Ulf Samuelsson <ulf.samuelsson@atmel.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
-#include <config.h>
#include <command.h>
-#include <status_led.h>
-
-struct led_tbl_s {
- char *string; /* String for use in the command */
- led_id_t mask; /* Mask used for calling __led_set() */
- void (*off)(void); /* Optional function for turning LED off */
- void (*on)(void); /* Optional function for turning LED on */
- void (*toggle)(void);/* Optional function for toggling LED */
-};
+#include <dm.h>
+#include <led.h>
+#include <dm/uclass-internal.h>
-typedef struct led_tbl_s led_tbl_t;
+#define LED_TOGGLE LEDST_COUNT
-static const led_tbl_t led_commands[] = {
-#ifdef CONFIG_LED_STATUS_BOARD_SPECIFIC
-#ifdef CONFIG_LED_STATUS0
- { "0", CONFIG_LED_STATUS_BIT, NULL, NULL, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS1
- { "1", CONFIG_LED_STATUS_BIT1, NULL, NULL, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS2
- { "2", CONFIG_LED_STATUS_BIT2, NULL, NULL, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS3
- { "3", CONFIG_LED_STATUS_BIT3, NULL, NULL, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS4
- { "4", CONFIG_LED_STATUS_BIT4, NULL, NULL, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS5
- { "5", CONFIG_LED_STATUS_BIT5, NULL, NULL, NULL },
-#endif
-#endif
-#ifdef CONFIG_LED_STATUS_GREEN
- { "green", CONFIG_LED_STATUS_GREEN, green_led_off, green_led_on, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS_YELLOW
- { "yellow", CONFIG_LED_STATUS_YELLOW, yellow_led_off, yellow_led_on,
- NULL },
-#endif
-#ifdef CONFIG_LED_STATUS_RED
- { "red", CONFIG_LED_STATUS_RED, red_led_off, red_led_on, NULL },
-#endif
-#ifdef CONFIG_LED_STATUS_BLUE
- { "blue", CONFIG_LED_STATUS_BLUE, blue_led_off, blue_led_on, NULL },
+static const char *const state_label[] = {
+ [LEDST_OFF] = "off",
+ [LEDST_ON] = "on",
+ [LEDST_TOGGLE] = "toggle",
+#ifdef CONFIG_LED_BLINK
+ [LEDST_BLINK] = "blink",
#endif
- { NULL, 0, NULL, NULL, NULL }
};
-enum led_cmd { LED_ON, LED_OFF, LED_TOGGLE, LED_BLINK };
-
-enum led_cmd get_led_cmd(char *var)
+enum led_state_t get_led_cmd(char *var)
{
- if (strcmp(var, "off") == 0)
- return LED_OFF;
- if (strcmp(var, "on") == 0)
- return LED_ON;
- if (strcmp(var, "toggle") == 0)
- return LED_TOGGLE;
- if (strcmp(var, "blink") == 0)
- return LED_BLINK;
+ int i;
+
+ for (i = 0; i < LEDST_COUNT; i++) {
+ if (!strncmp(var, state_label[i], strlen(var)))
+ return i;
+ }
return -1;
}
-/*
- * LED drivers providing a blinking LED functionality, like the
- * PCA9551, can override this empty weak function
- */
-void __weak __led_blink(led_id_t mask, int freq)
+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;
}
-int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int list_leds(void)
{
- int i, match = 0;
- enum led_cmd cmd;
- int freq;
+ 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");
+ }
+ }
- /* Validate arguments */
- if ((argc < 3) || (argc > 4))
- return CMD_RET_USAGE;
+ 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;
- cmd = get_led_cmd(argv[2]);
- if (cmd < 0) {
+ /* 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);
}
-
- for (i = 0; led_commands[i].string; i++) {
- if ((strcmp("all", argv[1]) == 0) ||
- (strcmp(led_commands[i].string, argv[1]) == 0)) {
- match = 1;
- switch (cmd) {
- case LED_ON:
- if (led_commands[i].on)
- led_commands[i].on();
- else
- __led_set(led_commands[i].mask,
- CONFIG_LED_STATUS_ON);
- break;
- case LED_OFF:
- if (led_commands[i].off)
- led_commands[i].off();
- else
- __led_set(led_commands[i].mask,
- CONFIG_LED_STATUS_OFF);
- break;
- case LED_TOGGLE:
- if (led_commands[i].toggle)
- led_commands[i].toggle();
- else
- __led_toggle(led_commands[i].mask);
- break;
- case LED_BLINK:
- if (argc != 4)
- return CMD_RET_USAGE;
-
- freq = simple_strtoul(argv[3], NULL, 10);
- __led_blink(led_commands[i].mask, freq);
- }
- /* Need to set only 1 led if led_name wasn't 'all' */
- if (strcmp("all", argv[1]) != 0)
- break;
- }
+#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;
}
-
- /* If we ran out of matches, print Usage */
- if (!match) {
- return CMD_RET_USAGE;
+ 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,
- "["
-#ifdef CONFIG_LED_STATUS_BOARD_SPECIFIC
-#ifdef CONFIG_LED_STATUS0
- "0|"
-#endif
-#ifdef CONFIG_LED_STATUS1
- "1|"
-#endif
-#ifdef CONFIG_LED_STATUS2
- "2|"
-#endif
-#ifdef CONFIG_LED_STATUS3
- "3|"
-#endif
-#ifdef CONFIG_LED_STATUS4
- "4|"
-#endif
-#ifdef CONFIG_LED_STATUS5
- "5|"
-#endif
-#endif
-#ifdef CONFIG_LED_STATUS_GREEN
- "green|"
-#endif
-#ifdef CONFIG_LED_STATUS_YELLOW
- "yellow|"
-#endif
-#ifdef CONFIG_LED_STATUS_RED
- "red|"
-#endif
-#ifdef CONFIG_LED_STATUS_BLUE
- "blue|"
-#endif
- "all] [on|off|toggle|blink] [blink-freq in ms]",
- "[led_name] [on|off|toggle|blink] sets or clears led(s)"
+ "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"
);
projects / people / ms / u-boot.git / blobdiff