]>
git.ipfire.org Git - people/ms/u-boot.git/blob - cmd/led.c
3 * Jason Kridner <jkridner@beagleboard.org>
5 * Based on cmd_led.c patch from:
6 * http://www.mail-archive.com/u-boot@lists.denx.de/msg06873.html
8 * Ulf Samuelsson <ulf.samuelsson@atmel.com>
10 * SPDX-License-Identifier: GPL-2.0+
16 #include <status_led.h>
19 char *string
; /* String for use in the command */
20 led_id_t mask
; /* Mask used for calling __led_set() */
21 void (*off
)(void); /* Optional function for turning LED off */
22 void (*on
)(void); /* Optional function for turning LED on */
23 void (*toggle
)(void);/* Optional function for toggling LED */
26 typedef struct led_tbl_s led_tbl_t
;
28 static const led_tbl_t led_commands
[] = {
29 #ifdef CONFIG_BOARD_SPECIFIC_LED
31 { "0", STATUS_LED_BIT
, NULL
, NULL
, NULL
},
33 #ifdef STATUS_LED_BIT1
34 { "1", STATUS_LED_BIT1
, NULL
, NULL
, NULL
},
36 #ifdef STATUS_LED_BIT2
37 { "2", STATUS_LED_BIT2
, NULL
, NULL
, NULL
},
39 #ifdef STATUS_LED_BIT3
40 { "3", STATUS_LED_BIT3
, NULL
, NULL
, NULL
},
42 #ifdef STATUS_LED_BIT4
43 { "4", STATUS_LED_BIT4
, NULL
, NULL
, NULL
},
45 #ifdef STATUS_LED_BIT5
46 { "5", STATUS_LED_BIT5
, NULL
, NULL
, NULL
},
49 #ifdef STATUS_LED_GREEN
50 { "green", STATUS_LED_GREEN
, green_led_off
, green_led_on
, NULL
},
52 #ifdef STATUS_LED_YELLOW
53 { "yellow", STATUS_LED_YELLOW
, yellow_led_off
, yellow_led_on
, NULL
},
56 { "red", STATUS_LED_RED
, red_led_off
, red_led_on
, NULL
},
58 #ifdef STATUS_LED_BLUE
59 { "blue", STATUS_LED_BLUE
, blue_led_off
, blue_led_on
, NULL
},
61 { NULL
, 0, NULL
, NULL
, NULL
}
64 enum led_cmd
{ LED_ON
, LED_OFF
, LED_TOGGLE
, LED_BLINK
};
66 enum led_cmd
get_led_cmd(char *var
)
68 if (strcmp(var
, "off") == 0)
70 if (strcmp(var
, "on") == 0)
72 if (strcmp(var
, "toggle") == 0)
74 if (strcmp(var
, "blink") == 0)
81 * LED drivers providing a blinking LED functionality, like the
82 * PCA9551, can override this empty weak function
84 void __weak
__led_blink(led_id_t mask
, int freq
)
88 int do_led (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
94 /* Validate arguments */
95 if ((argc
< 3) || (argc
> 4))
98 cmd
= get_led_cmd(argv
[2]);
100 return CMD_RET_USAGE
;
103 for (i
= 0; led_commands
[i
].string
; i
++) {
104 if ((strcmp("all", argv
[1]) == 0) ||
105 (strcmp(led_commands
[i
].string
, argv
[1]) == 0)) {
109 if (led_commands
[i
].on
)
110 led_commands
[i
].on();
112 __led_set(led_commands
[i
].mask
,
116 if (led_commands
[i
].off
)
117 led_commands
[i
].off();
119 __led_set(led_commands
[i
].mask
,
123 if (led_commands
[i
].toggle
)
124 led_commands
[i
].toggle();
126 __led_toggle(led_commands
[i
].mask
);
130 return CMD_RET_USAGE
;
132 freq
= simple_strtoul(argv
[3], NULL
, 10);
133 __led_blink(led_commands
[i
].mask
, freq
);
135 /* Need to set only 1 led if led_name wasn't 'all' */
136 if (strcmp("all", argv
[1]) != 0)
141 /* If we ran out of matches, print Usage */
143 return CMD_RET_USAGE
;
152 #ifdef CONFIG_BOARD_SPECIFIC_LED
153 #ifdef STATUS_LED_BIT
156 #ifdef STATUS_LED_BIT1
159 #ifdef STATUS_LED_BIT2
162 #ifdef STATUS_LED_BIT3
165 #ifdef STATUS_LED_BIT4
168 #ifdef STATUS_LED_BIT5
172 #ifdef STATUS_LED_GREEN
175 #ifdef STATUS_LED_YELLOW
178 #ifdef STATUS_LED_RED
181 #ifdef STATUS_LED_BLUE
184 "all] [on|off|toggle|blink] [blink-freq in ms]",
185 "[led_name] [on|off|toggle|blink] sets or clears led(s)"