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
|
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -12,6 +12,8 @@
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/ssb/ssb.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
#include <asm/addrspace.h>
#include <bcm63xx_board.h>
#include <bcm63xx_cpu.h>
@@ -32,6 +34,9 @@
#define PFX "board_bcm963xx: "
+#define BCM963XX_KEYS_POLL_INTERVAL 20
+#define BCM963XX_KEYS_DEBOUNCE_INTERVAL (BCM963XX_KEYS_POLL_INTERVAL * 3)
+
static struct board_info board;
/*
@@ -343,6 +348,16 @@ static struct board_info __initdata boar
.active_low = 1,
},
},
+ .buttons = {
+ {
+ .desc = "reset",
+ .gpio = 33,
+ .active_low = 1,
+ .type = EV_KEY,
+ .code = KEY_RESTART,
+ .debounce_interval = BCM963XX_KEYS_DEBOUNCE_INTERVAL,
+ },
+ },
};
static struct board_info __initdata board_96348gw = {
@@ -401,6 +416,16 @@ static struct board_info __initdata boar
.active_low = 1,
},
},
+ .buttons = {
+ {
+ .desc = "reset",
+ .gpio = 36,
+ .active_low = 1,
+ .type = EV_KEY,
+ .code = KEY_RESTART,
+ .debounce_interval = BCM963XX_KEYS_DEBOUNCE_INTERVAL,
+ },
+ },
};
static struct board_info __initdata board_FAST2404 = {
@@ -825,11 +850,23 @@ static struct platform_device bcm63xx_gp
.dev.platform_data = &bcm63xx_led_data,
};
+static struct gpio_keys_platform_data bcm63xx_gpio_keys_data = {
+ .poll_interval = BCM963XX_KEYS_POLL_INTERVAL,
+};
+
+static struct platform_device bcm63xx_gpio_keys_device = {
+ .name = "gpio-keys-polled",
+ .id = 0,
+ .dev.platform_data = &bcm63xx_gpio_keys_data,
+};
+
/*
* third stage init callback, register all board devices.
*/
int __init board_register_devices(void)
{
+ int button_count = 0;
+
if (board.has_uart0)
bcm63xx_uart_register(0);
@@ -881,5 +918,16 @@ int __init board_register_devices(void)
platform_device_register(&bcm63xx_gpio_leds);
+ /* count number of BUTTONs defined by this device */
+ while (button_count < ARRAY_SIZE(board.buttons) && board.buttons[button_count].desc)
+ button_count++;
+
+ if (button_count) {
+ bcm63xx_gpio_keys_data.nbuttons = button_count;
+ bcm63xx_gpio_keys_data.buttons = board.buttons;
+
+ platform_device_register(&bcm63xx_gpio_keys_device);
+ }
+
return 0;
}
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -3,6 +3,7 @@
#include <linux/types.h>
#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
#include <linux/leds.h>
#include <bcm63xx_dev_enet.h>
#include <bcm63xx_dev_usb_usbd.h>
@@ -45,6 +46,9 @@ struct board_info {
/* GPIO LEDs */
struct gpio_led leds[5];
+
+ /* Buttons */
+ struct gpio_keys_button buttons[4];
};
#endif /* ! BOARD_BCM963XX_H_ */
|
