aboutsummaryrefslogtreecommitdiff
path: root/arch/blackfin/include/asm/gpio.h
blob: 99d338ca2ea420f5874e561fb96122271cf5e37d (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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
/*
 * Copyright 2006-2009 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __ARCH_BLACKFIN_GPIO_H__
#define __ARCH_BLACKFIN_GPIO_H__

#define gpio_bank(x)	((x) >> 4)
#define gpio_bit(x)	(1<<((x) & 0xF))
#define gpio_sub_n(x)	((x) & 0xF)

#define GPIO_BANKSIZE	16
#define GPIO_BANK_NUM	DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)

#include <mach/gpio.h>

#define PERIPHERAL_USAGE 1
#define GPIO_USAGE 0

#ifndef BFIN_GPIO_PINT
# define BFIN_GPIO_PINT 0
#endif

#ifndef __ASSEMBLY__

#ifndef CONFIG_PINCTRL

#include <linux/compiler.h>
#include <asm/blackfin.h>
#include <asm/portmux.h>
#include <asm/irq_handler.h>

/***********************************************************
*
* FUNCTIONS: Blackfin General Purpose Ports Access Functions
*
* INPUTS/OUTPUTS:
* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
*
*
* DESCRIPTION: These functions abstract direct register access
*              to Blackfin processor General Purpose
*              Ports Regsiters
*
* CAUTION: These functions do not belong to the GPIO Driver API
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/

void set_gpio_dir(unsigned, unsigned short);
void set_gpio_inen(unsigned, unsigned short);
void set_gpio_polar(unsigned, unsigned short);
void set_gpio_edge(unsigned, unsigned short);
void set_gpio_both(unsigned, unsigned short);
void set_gpio_data(unsigned, unsigned short);
void set_gpio_maska(unsigned, unsigned short);
void set_gpio_maskb(unsigned, unsigned short);
void set_gpio_toggle(unsigned);
void set_gpiop_dir(unsigned, unsigned short);
void set_gpiop_inen(unsigned, unsigned short);
void set_gpiop_polar(unsigned, unsigned short);
void set_gpiop_edge(unsigned, unsigned short);
void set_gpiop_both(unsigned, unsigned short);
void set_gpiop_data(unsigned, unsigned short);
void set_gpiop_maska(unsigned, unsigned short);
void set_gpiop_maskb(unsigned, unsigned short);
unsigned short get_gpio_dir(unsigned);
unsigned short get_gpio_inen(unsigned);
unsigned short get_gpio_polar(unsigned);
unsigned short get_gpio_edge(unsigned);
unsigned short get_gpio_both(unsigned);
unsigned short get_gpio_maska(unsigned);
unsigned short get_gpio_maskb(unsigned);
unsigned short get_gpio_data(unsigned);
unsigned short get_gpiop_dir(unsigned);
unsigned short get_gpiop_inen(unsigned);
unsigned short get_gpiop_polar(unsigned);
unsigned short get_gpiop_edge(unsigned);
unsigned short get_gpiop_both(unsigned);
unsigned short get_gpiop_maska(unsigned);
unsigned short get_gpiop_maskb(unsigned);
unsigned short get_gpiop_data(unsigned);

struct gpio_port_t {
	unsigned short data;
	unsigned short dummy1;
	unsigned short data_clear;
	unsigned short dummy2;
	unsigned short data_set;
	unsigned short dummy3;
	unsigned short toggle;
	unsigned short dummy4;
	unsigned short maska;
	unsigned short dummy5;
	unsigned short maska_clear;
	unsigned short dummy6;
	unsigned short maska_set;
	unsigned short dummy7;
	unsigned short maska_toggle;
	unsigned short dummy8;
	unsigned short maskb;
	unsigned short dummy9;
	unsigned short maskb_clear;
	unsigned short dummy10;
	unsigned short maskb_set;
	unsigned short dummy11;
	unsigned short maskb_toggle;
	unsigned short dummy12;
	unsigned short dir;
	unsigned short dummy13;
	unsigned short polar;
	unsigned short dummy14;
	unsigned short edge;
	unsigned short dummy15;
	unsigned short both;
	unsigned short dummy16;
	unsigned short inen;
};

#ifdef BFIN_SPECIAL_GPIO_BANKS
void bfin_special_gpio_free(unsigned gpio);
int bfin_special_gpio_request(unsigned gpio, const char *label);
# ifdef CONFIG_PM
void bfin_special_gpio_pm_hibernate_restore(void);
void bfin_special_gpio_pm_hibernate_suspend(void);
# endif
#endif

#ifdef CONFIG_PM
void bfin_gpio_pm_hibernate_restore(void);
void bfin_gpio_pm_hibernate_suspend(void);
int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
int bfin_gpio_pm_standby_ctrl(unsigned ctrl);

static inline int bfin_pm_standby_setup(void)
{
	return bfin_gpio_pm_standby_ctrl(1);
}

static inline void bfin_pm_standby_restore(void)
{
	bfin_gpio_pm_standby_ctrl(0);
}


struct gpio_port_s {
	unsigned short data;
	unsigned short maska;
	unsigned short maskb;
	unsigned short dir;
	unsigned short polar;
	unsigned short edge;
	unsigned short both;
	unsigned short inen;

	unsigned short fer;
	unsigned short reserved;
	unsigned short mux;
};
#endif /*CONFIG_PM*/

/***********************************************************
*
* FUNCTIONS: Blackfin GPIO Driver
*
* INPUTS/OUTPUTS:
* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
*
*
* DESCRIPTION: Blackfin GPIO Driver API
*
* CAUTION:
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/
int bfin_gpio_irq_request(unsigned gpio, const char *label);
void bfin_gpio_irq_free(unsigned gpio);
void bfin_gpio_irq_prepare(unsigned gpio);

static inline int irq_to_gpio(unsigned irq)
{
	return irq - GPIO_IRQ_BASE;
}
#endif /* CONFIG_PINCTRL */

#include <asm/irq.h>
#include <asm/errno.h>

#include <asm-generic/gpio.h>		/* cansleep wrappers */

static inline int gpio_get_value(unsigned int gpio)
{
	return __gpio_get_value(gpio);
}

static inline void gpio_set_value(unsigned int gpio, int value)
{
	__gpio_set_value(gpio, value);
}

static inline int gpio_cansleep(unsigned int gpio)
{
	return __gpio_cansleep(gpio);
}

static inline int gpio_to_irq(unsigned gpio)
{
	return __gpio_to_irq(gpio);
}
#endif /* __ASSEMBLY__ */

#endif /* __ARCH_BLACKFIN_GPIO_H__ */