xref: /openbmc/u-boot/include/status_led.h (revision db74cbfc)
1 /*
2  * (C) Copyright 2000-2004
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 /*
9  * The purpose of this code is to signal the operational status of a
10  * target which usually boots over the network; while running in
11  * PCBoot, a status LED is blinking. As soon as a valid BOOTP reply
12  * message has been received, the LED is turned off. The Linux
13  * kernel, once it is running, will start blinking the LED again,
14  * with another frequency.
15  */
16 
17 #ifndef _STATUS_LED_H_
18 #define	_STATUS_LED_H_
19 
20 #ifdef CONFIG_LED_STATUS
21 
22 #define LED_STATUS_PERIOD	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ)
23 #ifdef CONFIG_LED_STATUS1
24 #define LED_STATUS_PERIOD1	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ1)
25 #endif /* CONFIG_LED_STATUS1 */
26 #ifdef CONFIG_LED_STATUS2
27 #define LED_STATUS_PERIOD2	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ2)
28 #endif /* CONFIG_LED_STATUS2 */
29 #ifdef CONFIG_LED_STATUS3
30 #define LED_STATUS_PERIOD3	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ3)
31 #endif /* CONFIG_LED_STATUS3 */
32 #ifdef CONFIG_LED_STATUS4
33 #define LED_STATUS_PERIOD4	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ4)
34 #endif /* CONFIG_LED_STATUS4 */
35 #ifdef CONFIG_LED_STATUS5
36 #define LED_STATUS_PERIOD5	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ5)
37 #endif /* CONFIG_LED_STATUS5 */
38 
39 void status_led_init(void);
40 void status_led_tick (unsigned long timestamp);
41 void status_led_set  (int led, int state);
42 
43 /*****  TQM8xxL  ********************************************************/
44 #if defined(CONFIG_TQM8xxL)
45 # define STATUS_LED_PAR		im_cpm.cp_pbpar
46 # define STATUS_LED_DIR		im_cpm.cp_pbdir
47 # define STATUS_LED_ODR		im_cpm.cp_pbodr
48 # define STATUS_LED_DAT		im_cpm.cp_pbdat
49 
50 # define STATUS_LED_ACTIVE	1		/* LED on for bit == 1	*/
51 
52 /*****  MVS v1  **********************************************************/
53 #elif (defined(CONFIG_MVS) && CONFIG_MVS < 2)
54 # define STATUS_LED_PAR		im_ioport.iop_pdpar
55 # define STATUS_LED_DIR		im_ioport.iop_pddir
56 # undef  STATUS_LED_ODR
57 # define STATUS_LED_DAT		im_ioport.iop_pddat
58 
59 # define STATUS_LED_ACTIVE	1		/* LED on for bit == 1	*/
60 
61 /*****  Someone else defines these  *************************************/
62 #elif defined(STATUS_LED_PAR)
63   /*
64    * ADVICE: Define in your board configuration file rather than
65    * filling this file up with lots of custom board stuff.
66    */
67 
68 #elif defined(CONFIG_V38B)
69 
70 # define STATUS_LED_ACTIVE	0		/* LED on for bit == 0 */
71 
72 #elif defined(CONFIG_LED_STATUS_BOARD_SPECIFIC)
73 /* led_id_t is unsigned long mask */
74 typedef unsigned long led_id_t;
75 
76 extern void __led_toggle (led_id_t mask);
77 extern void __led_init (led_id_t mask, int state);
78 extern void __led_set (led_id_t mask, int state);
79 void __led_blink(led_id_t mask, int freq);
80 #else
81 # error Status LED configuration missing
82 #endif
83 /************************************************************************/
84 
85 #ifndef CONFIG_LED_STATUS_BOARD_SPECIFIC
86 # include <asm/status_led.h>
87 #endif
88 
89 #endif	/* CONFIG_LED_STATUS	*/
90 
91 /*
92  * Coloured LEDs API
93  */
94 #ifndef	__ASSEMBLY__
95 void coloured_LED_init(void);
96 void red_led_on(void);
97 void red_led_off(void);
98 void green_led_on(void);
99 void green_led_off(void);
100 void yellow_led_on(void);
101 void yellow_led_off(void);
102 void blue_led_on(void);
103 void blue_led_off(void);
104 #else
105 	.extern LED_init
106 	.extern red_led_on
107 	.extern red_led_off
108 	.extern yellow_led_on
109 	.extern yellow_led_off
110 	.extern green_led_on
111 	.extern green_led_off
112 	.extern blue_led_on
113 	.extern blue_led_off
114 #endif
115 
116 #endif	/* _STATUS_LED_H_	*/
117