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
|
/* arch/arm/mach-msm/gpio_chip.h
*
* Copyright (C) 2007 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _LINUX_GPIO_CHIP_H
#define _LINUX_GPIO_CHIP_H
#include <linux/list.h>
struct gpio_chip {
struct list_head list;
struct gpio_state *state;
unsigned int start;
unsigned int end;
int (*configure)(struct gpio_chip *chip, unsigned int gpio, unsigned long flags);
int (*get_irq_num)(struct gpio_chip *chip, unsigned int gpio, unsigned int *irqp, unsigned long *irqnumflagsp);
int (*read)(struct gpio_chip *chip, unsigned int gpio);
int (*write)(struct gpio_chip *chip, unsigned int gpio, unsigned on);
int (*read_detect_status)(struct gpio_chip *chip, unsigned int gpio);
int (*clear_detect_status)(struct gpio_chip *chip, unsigned int gpio);
};
struct msm_gpio_regs {
void __iomem *out;
void __iomem *in;
void __iomem *int_status;
void __iomem *int_clear;
void __iomem *int_en;
void __iomem *int_edge;
void __iomem *int_pos;
void __iomem *oe;
};
#define MSM_GPIO_BROKEN_INT_CLEAR 1
struct msm_gpio_chip {
struct gpio_chip chip;
struct msm_gpio_regs regs;
#if MSM_GPIO_BROKEN_INT_CLEAR
unsigned int_status_copy;
#endif
unsigned int both_edge_detect;
unsigned int int_enable[2]; /* 0: awake, 1: sleep */
};
int register_gpio_chip(struct gpio_chip *gpio_chip);
#endif
|
