* (C) Copyright 2008
* Ulf Samuelsson <ulf.samuelsson@atmel.com>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
struct led_tbl_s {
char *string; /* String for use in the command */
led_id_t mask; /* Mask used for calling __led_set() */
- void (*on)(void); /* Optional fucntion for turning LED on */
- void (*off)(void); /* Optional fucntion for turning LED on */
+ 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 },
+ { "0", STATUS_LED_BIT, NULL, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT1
- { "1", STATUS_LED_BIT1, NULL, NULL },
+ { "1", STATUS_LED_BIT1, NULL, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT2
- { "2", STATUS_LED_BIT2, NULL, NULL },
+ { "2", STATUS_LED_BIT2, NULL, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT3
- { "3", STATUS_LED_BIT3, NULL, NULL },
+ { "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 },
+ { "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 },
+ { "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 },
+ { "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 },
+ { "blue", STATUS_LED_BLUE, blue_led_off, blue_led_on, NULL },
#endif
- { NULL, 0, NULL, NULL }
+ { NULL, 0, NULL, NULL, NULL }
};
-int str_onoff (char *var)
+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 0;
- }
- if (strcmp(var, "on") == 0) {
- return 1;
- }
+ 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 state, i;
+ int i, match = 0;
+ enum led_cmd cmd;
+ int freq;
/* Validate arguments */
- if ((argc != 3)) {
- return cmd_usage(cmdtp);
- }
+ if ((argc < 3) || (argc > 4))
+ return CMD_RET_USAGE;
- state = str_onoff(argv[2]);
- if (state < 0) {
- return cmd_usage(cmdtp);
+ 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) ||
+ if ((strcmp("all", argv[1]) == 0) ||
(strcmp(led_commands[i].string, argv[1]) == 0)) {
- if (led_commands[i].on) {
- if (state) {
+ match = 1;
+ switch (cmd) {
+ case LED_ON:
+ if (led_commands[i].on)
led_commands[i].on();
- } else {
+ 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, state);
+ 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);
}
- break;
+ /* 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 (!led_commands[i].string && !(strcmp("all", argv[1]) == 0)) {
- return cmd_usage(cmdtp);
+ if (!match) {
+ return CMD_RET_USAGE;
}
return 0;
}
U_BOOT_CMD(
- led, 3, 1, do_led,
- "led\t- ["
+ led, 4, 1, do_led,
+ "["
#ifdef CONFIG_BOARD_SPECIFIC_LED
#ifdef STATUS_LED_BIT
"0|"
#ifdef STATUS_LED_BIT3
"3|"
#endif
+#ifdef STATUS_LED_BIT4
+ "4|"
+#endif
+#ifdef STATUS_LED_BIT5
+ "5|"
+#endif
#endif
#ifdef STATUS_LED_GREEN
"green|"
#ifdef STATUS_LED_BLUE
"blue|"
#endif
- "all] [on|off]\n",
- "led [led_name] [on|off] sets or clears led(s)\n"
+ "all] [on|off|toggle|blink] [blink-freq in ms]",
+ "[led_name] [on|off|toggle|blink] sets or clears led(s)"
);
projects / karo-tx-uboot.git / blobdiff