1/*
2 * linux/arch/arm/mach-sa1100/leds-simpad.c
3 *
4 * Author: Juergen Messerer <juergen.messerer@siemens.ch>
5 */
6#include <linux/init.h>
7
8#include <asm/hardware.h>
9#include <asm/leds.h>
10#include <asm/system.h>
11#include <asm/arch/simpad.h>
12
13#include "leds.h"
14
15
16#define LED_STATE_ENABLED	1
17#define LED_STATE_CLAIMED	2
18
19static unsigned int led_state;
20static unsigned int hw_led_state;
21
22#define	LED_GREEN	(1)
23#define	LED_MASK	(1)
24
25extern void set_cs3_bit(int value);
26extern void clear_cs3_bit(int value);
27
28void simpad_leds_event(led_event_t evt)
29{
30	switch (evt)
31	{
32	case led_start:
33	        hw_led_state = LED_GREEN;
34		led_state = LED_STATE_ENABLED;
35		break;
36
37	case led_stop:
38		led_state &= ~LED_STATE_ENABLED;
39		break;
40
41	case led_claim:
42		led_state |= LED_STATE_CLAIMED;
43		hw_led_state = LED_GREEN;
44		break;
45
46	case led_release:
47		led_state &= ~LED_STATE_CLAIMED;
48		hw_led_state = LED_GREEN;
49		break;
50
51#ifdef CONFIG_LEDS_TIMER
52	case led_timer:
53		if (!(led_state & LED_STATE_CLAIMED))
54			hw_led_state ^= LED_GREEN;
55		break;
56#endif
57
58#ifdef CONFIG_LEDS_CPU
59	case led_idle_start:
60		break;
61
62	case led_idle_end:
63		break;
64#endif
65
66	case led_halted:
67		break;
68
69	case led_green_on:
70		if (led_state & LED_STATE_CLAIMED)
71			hw_led_state |= LED_GREEN;
72		break;
73
74	case led_green_off:
75		if (led_state & LED_STATE_CLAIMED)
76			hw_led_state &= ~LED_GREEN;
77		break;
78
79	case led_amber_on:
80		break;
81
82	case led_amber_off:
83		break;
84
85	case led_red_on:
86		break;
87
88	case led_red_off:
89		break;
90
91	default:
92		break;
93	}
94
95	if  (led_state & LED_STATE_ENABLED)
96		set_cs3_bit(LED2_ON);
97	else
98	        clear_cs3_bit(LED2_ON);
99}
100