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-rw-r--r--include/asm-arm/arch-s3c2410/hardware.h137
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diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
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--- a/include/asm-arm/arch-s3c2410/hardware.h
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1/* linux/include/asm-arm/arch-s3c2410/hardware.h
2 *
3 * Copyright (c) 2003 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * S3C2410 - hardware
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_HARDWARE_H
14#define __ASM_ARCH_HARDWARE_H
15
16#ifndef __ASSEMBLY__
17
18/* external functions for GPIO support
19 *
20 * These allow various different clients to access the same GPIO
21 * registers without conflicting. If your driver only owns the entire
22 * GPIO register, then it is safe to ioremap/__raw_{read|write} to it.
23*/
24
25/* s3c2410_gpio_cfgpin
26 *
27 * set the configuration of the given pin to the value passed.
28 *
29 * eg:
30 * s3c2410_gpio_cfgpin(S3C2410_GPA0, S3C2410_GPA0_ADDR0);
31 * s3c2410_gpio_cfgpin(S3C2410_GPE8, S3C2410_GPE8_SDDAT1);
32*/
33
34extern void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function);
35
36extern unsigned int s3c2410_gpio_getcfg(unsigned int pin);
37
38/* s3c2410_gpio_getirq
39 *
40 * turn the given pin number into the corresponding IRQ number
41 *
42 * returns:
43 * < 0 = no interrupt for this pin
44 * >=0 = interrupt number for the pin
45*/
46
47extern int s3c2410_gpio_getirq(unsigned int pin);
48
49/* s3c2410_gpio_irq2pin
50 *
51 * turn the given irq number into the corresponding GPIO number
52 *
53 * returns:
54 * < 0 = no pin
55 * >=0 = gpio pin number
56*/
57
58extern int s3c2410_gpio_irq2pin(unsigned int irq);
59
60#ifdef CONFIG_CPU_S3C2400
61
62extern int s3c2400_gpio_getirq(unsigned int pin);
63
64#endif /* CONFIG_CPU_S3C2400 */
65
66/* s3c2410_gpio_irqfilter
67 *
68 * set the irq filtering on the given pin
69 *
70 * on = 0 => disable filtering
71 * 1 => enable filtering
72 *
73 * config = S3C2410_EINTFLT_PCLK or S3C2410_EINTFLT_EXTCLK orred with
74 * width of filter (0 through 63)
75 *
76 *
77*/
78
79extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
80 unsigned int config);
81
82/* s3c2410_gpio_pullup
83 *
84 * configure the pull-up control on the given pin
85 *
86 * to = 1 => disable the pull-up
87 * 0 => enable the pull-up
88 *
89 * eg;
90 *
91 * s3c2410_gpio_pullup(S3C2410_GPB0, 0);
92 * s3c2410_gpio_pullup(S3C2410_GPE8, 0);
93*/
94
95extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to);
96
97/* s3c2410_gpio_getpull
98 *
99 * Read the state of the pull-up on a given pin
100 *
101 * return:
102 * < 0 => error code
103 * 0 => enabled
104 * 1 => disabled
105*/
106
107extern int s3c2410_gpio_getpull(unsigned int pin);
108
109extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);
110
111extern unsigned int s3c2410_gpio_getpin(unsigned int pin);
112
113extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg);
114
115#ifdef CONFIG_CPU_S3C2440
116
117extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
118
119#endif /* CONFIG_CPU_S3C2440 */
120
121#ifdef CONFIG_CPU_S3C2412
122
123extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state);
124
125#endif /* CONFIG_CPU_S3C2412 */
126
127#endif /* __ASSEMBLY__ */
128
129#include <asm/sizes.h>
130#include <asm/arch/map.h>
131
132/* machine specific hardware definitions should go after this */
133
134/* currently here until moved into config (todo) */
135#define CONFIG_NO_MULTIWORD_IO
136
137#endif /* __ASM_ARCH_HARDWARE_H */