blob: c2fe1db22bf1f2d1fa51640cabb5d7229c4cf5cd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* linux/arch/arm/mach-pxa/leds-trizeps4.c
*
* Author: Jürgen Schindele
* Created: 20 02, 2006
* Copyright: Jürgen Schindele
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <asm/arch/hardware.h>
#include <asm/system.h>
#include <asm/types.h>
#include <asm/leds.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-gpio.h>
#include <asm/arch/trizeps4.h>
#include "leds.h"
#define LED_STATE_ENABLED 1
#define LED_STATE_CLAIMED 2
#define SYS_BUSY 0x01
#define HEARTBEAT 0x02
#define BLINK 0x04
static unsigned int led_state;
static unsigned int hw_led_state;
void trizeps4_leds_event(led_event_t evt)
{
unsigned long flags;
local_irq_save(flags);
switch (evt) {
case led_start:
hw_led_state = 0;
pxa_gpio_mode( GPIO_SYS_BUSY_LED | GPIO_OUT); /* LED1 */
pxa_gpio_mode( GPIO_HEARTBEAT_LED | GPIO_OUT); /* LED2 */
led_state = LED_STATE_ENABLED;
break;
case led_stop:
led_state &= ~LED_STATE_ENABLED;
break;
case led_claim:
led_state |= LED_STATE_CLAIMED;
hw_led_state = 0;
break;
case led_release:
led_state &= ~LED_STATE_CLAIMED;
hw_led_state = 0;
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer:
hw_led_state ^= HEARTBEAT;
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start:
hw_led_state &= ~SYS_BUSY;
break;
case led_idle_end:
hw_led_state |= SYS_BUSY;
break;
#endif
case led_halted:
break;
case led_green_on:
hw_led_state |= BLINK;
break;
case led_green_off:
hw_led_state &= ~BLINK;
break;
case led_amber_on:
break;
case led_amber_off:
break;
case led_red_on:
break;
case led_red_off:
break;
default:
break;
}
if (led_state & LED_STATE_ENABLED) {
switch (hw_led_state) {
case 0:
GPSR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
break;
case 1:
GPCR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
break;
case 2:
GPSR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
GPCR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
break;
case 3:
GPCR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
GPCR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
break;
}
}
else {
/* turn all off */
GPSR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
}
local_irq_restore(flags);
}
|
