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
|
/* arch/arm/mach-s3c2410/include/mach/hardware.h
*
* Copyright (c) 2003 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* S3C2410 - hardware
*
* 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.
*/
#ifndef __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H
#ifndef __ASSEMBLY__
/* external functions for GPIO support
*
* These allow various different clients to access the same GPIO
* registers without conflicting. If your driver only owns the entire
* GPIO register, then it is safe to ioremap/__raw_{read|write} to it.
*/
/* s3c2410_gpio_cfgpin
*
* set the configuration of the given pin to the value passed.
*
* eg:
* s3c2410_gpio_cfgpin(S3C2410_GPA0, S3C2410_GPA0_ADDR0);
* s3c2410_gpio_cfgpin(S3C2410_GPE8, S3C2410_GPE8_SDDAT1);
*/
extern void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function);
extern unsigned int s3c2410_gpio_getcfg(unsigned int pin);
/* s3c2410_gpio_getirq
*
* turn the given pin number into the corresponding IRQ number
*
* returns:
* < 0 = no interrupt for this pin
* >=0 = interrupt number for the pin
*/
extern int s3c2410_gpio_getirq(unsigned int pin);
/* s3c2410_gpio_irq2pin
*
* turn the given irq number into the corresponding GPIO number
*
* returns:
* < 0 = no pin
* >=0 = gpio pin number
*/
extern int s3c2410_gpio_irq2pin(unsigned int irq);
#ifdef CONFIG_CPU_S3C2400
extern int s3c2400_gpio_getirq(unsigned int pin);
#endif /* CONFIG_CPU_S3C2400 */
/* s3c2410_gpio_irqfilter
*
* set the irq filtering on the given pin
*
* on = 0 => disable filtering
* 1 => enable filtering
*
* config = S3C2410_EINTFLT_PCLK or S3C2410_EINTFLT_EXTCLK orred with
* width of filter (0 through 63)
*
*
*/
extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
unsigned int config);
/* s3c2410_gpio_pullup
*
* configure the pull-up control on the given pin
*
* to = 1 => disable the pull-up
* 0 => enable the pull-up
*
* eg;
*
* s3c2410_gpio_pullup(S3C2410_GPB0, 0);
* s3c2410_gpio_pullup(S3C2410_GPE8, 0);
*/
extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to);
/* s3c2410_gpio_getpull
*
* Read the state of the pull-up on a given pin
*
* return:
* < 0 => error code
* 0 => enabled
* 1 => disabled
*/
extern int s3c2410_gpio_getpull(unsigned int pin);
extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);
extern unsigned int s3c2410_gpio_getpin(unsigned int pin);
extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg);
#ifdef CONFIG_CPU_S3C2440
extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
#endif /* CONFIG_CPU_S3C2440 */
#ifdef CONFIG_CPU_S3C2412
extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state);
#endif /* CONFIG_CPU_S3C2412 */
#endif /* __ASSEMBLY__ */
#include <asm/sizes.h>
#include <mach/map.h>
/* machine specific hardware definitions should go after this */
#endif /* __ASM_ARCH_HARDWARE_H */
|
