diff options
Diffstat (limited to 'arch/arm/mach-s3c2410/include/mach/hardware.h')
-rw-r--r-- | arch/arm/mach-s3c2410/include/mach/hardware.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/hardware.h b/arch/arm/mach-s3c2410/include/mach/hardware.h new file mode 100644 index 000000000000..74d5a1a4024c --- /dev/null +++ b/arch/arm/mach-s3c2410/include/mach/hardware.h | |||
@@ -0,0 +1,137 @@ | |||
1 | /* arch/arm/mach-s3c2410/include/mach/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 | |||
34 | extern void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function); | ||
35 | |||
36 | extern 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 | |||
47 | extern 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 | |||
58 | extern int s3c2410_gpio_irq2pin(unsigned int irq); | ||
59 | |||
60 | #ifdef CONFIG_CPU_S3C2400 | ||
61 | |||
62 | extern 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 | |||
79 | extern 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 | |||
95 | extern 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 | |||
107 | extern int s3c2410_gpio_getpull(unsigned int pin); | ||
108 | |||
109 | extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to); | ||
110 | |||
111 | extern unsigned int s3c2410_gpio_getpin(unsigned int pin); | ||
112 | |||
113 | extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg); | ||
114 | |||
115 | #ifdef CONFIG_CPU_S3C2440 | ||
116 | |||
117 | extern int s3c2440_set_dsc(unsigned int pin, unsigned int value); | ||
118 | |||
119 | #endif /* CONFIG_CPU_S3C2440 */ | ||
120 | |||
121 | #ifdef CONFIG_CPU_S3C2412 | ||
122 | |||
123 | extern 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 <mach/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 */ | ||