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-rw-r--r--cmd/led.c186
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diff --git a/cmd/led.c b/cmd/led.c
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index 0000000000..b0f1a61b1b
--- /dev/null
+++ b/cmd/led.c
@@ -0,0 +1,186 @@
+/*
+ * (C) Copyright 2010
+ * Jason Kridner <jkridner@beagleboard.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+
+ */
+
+#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 */
+};
+
+typedef struct led_tbl_s led_tbl_t;
+
+static const led_tbl_t led_commands[] = {
+#ifdef CONFIG_BOARD_SPECIFIC_LED
+#ifdef STATUS_LED_BIT
+ { "0", STATUS_LED_BIT, NULL, NULL, NULL },
+#endif
+#ifdef STATUS_LED_BIT1
+ { "1", STATUS_LED_BIT1, NULL, NULL, NULL },
+#endif
+#ifdef STATUS_LED_BIT2
+ { "2", STATUS_LED_BIT2, NULL, NULL, NULL },
+#endif
+#ifdef STATUS_LED_BIT3
+ { "3", STATUS_LED_BIT3, NULL, NULL, NULL },
+#endif
+#ifdef STATUS_LED_BIT4
+ { "4", STATUS_LED_BIT4, NULL, NULL, NULL },
+#endif
+#ifdef STATUS_LED_BIT5
+ { "5", STATUS_LED_BIT5, NULL, NULL, NULL },
+#endif
+#endif
+#ifdef STATUS_LED_GREEN
+ { "green", STATUS_LED_GREEN, green_led_off, green_led_on, NULL },
+#endif
+#ifdef STATUS_LED_YELLOW
+ { "yellow", STATUS_LED_YELLOW, yellow_led_off, yellow_led_on, NULL },
+#endif
+#ifdef STATUS_LED_RED
+ { "red", STATUS_LED_RED, red_led_off, red_led_on, NULL },
+#endif
+#ifdef STATUS_LED_BLUE
+ { "blue", STATUS_LED_BLUE, blue_led_off, blue_led_on, NULL },
+#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)
+{
+ 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;
+
+ 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)
+{
+}
+
+int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int i, match = 0;
+ enum led_cmd cmd;
+ int freq;
+
+ /* Validate arguments */
+ if ((argc < 3) || (argc > 4))
+ return CMD_RET_USAGE;
+
+ cmd = get_led_cmd(argv[2]);
+ if (cmd < 0) {
+ return CMD_RET_USAGE;
+ }
+
+ 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,
+ STATUS_LED_ON);
+ break;
+ case LED_OFF:
+ if (led_commands[i].off)
+ led_commands[i].off();
+ else
+ __led_set(led_commands[i].mask,
+ STATUS_LED_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;
+ }
+ }
+
+ /* If we ran out of matches, print Usage */
+ if (!match) {
+ return CMD_RET_USAGE;
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ led, 4, 1, do_led,
+ "["
+#ifdef CONFIG_BOARD_SPECIFIC_LED
+#ifdef STATUS_LED_BIT
+ "0|"
+#endif
+#ifdef STATUS_LED_BIT1
+ "1|"
+#endif
+#ifdef STATUS_LED_BIT2
+ "2|"
+#endif
+#ifdef STATUS_LED_BIT3
+ "3|"
+#endif
+#ifdef STATUS_LED_BIT4
+ "4|"
+#endif
+#ifdef STATUS_LED_BIT5
+ "5|"
+#endif
+#endif
+#ifdef STATUS_LED_GREEN
+ "green|"
+#endif
+#ifdef STATUS_LED_YELLOW
+ "yellow|"
+#endif
+#ifdef STATUS_LED_RED
+ "red|"
+#endif
+#ifdef STATUS_LED_BLUE
+ "blue|"
+#endif
+ "all] [on|off|toggle|blink] [blink-freq in ms]",
+ "[led_name] [on|off|toggle|blink] sets or clears led(s)"
+);