arch/arm/mach-at91/include/mach/gpio.h

   1 /*
   2  * arch/arm/mach-at91/include/mach/gpio.h
   3  *
   4  *  Copyright (C) 2005 HP Labs
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  */
  12
  13 #ifndef __ASM_ARCH_AT91RM9200_GPIO_H
  14 #define __ASM_ARCH_AT91RM9200_GPIO_H
  15
  16 #include <linux/kernel.h>
  17 #include <asm/irq.h>
  18
  19 #define MAX_GPIO_BANKS          5
  20 #define NR_BUILTIN_GPIO         (MAX_GPIO_BANKS * 32)
  21
  22 /* these pin numbers double as IRQ numbers, like AT91xxx_ID_* values */
  23
  24 #define AT91_PIN_PA0    (0x00 + 0)
  25 #define AT91_PIN_PA1    (0x00 + 1)
  26 #define AT91_PIN_PA2    (0x00 + 2)
  27 #define AT91_PIN_PA3    (0x00 + 3)
  28 #define AT91_PIN_PA4    (0x00 + 4)
  29 #define AT91_PIN_PA5    (0x00 + 5)
  30 #define AT91_PIN_PA6    (0x00 + 6)
  31 #define AT91_PIN_PA7    (0x00 + 7)
  32 #define AT91_PIN_PA8    (0x00 + 8)
  33 #define AT91_PIN_PA9    (0x00 + 9)
  34 #define AT91_PIN_PA10   (0x00 + 10)
  35 #define AT91_PIN_PA11   (0x00 + 11)
  36 #define AT91_PIN_PA12   (0x00 + 12)
  37 #define AT91_PIN_PA13   (0x00 + 13)
  38 #define AT91_PIN_PA14   (0x00 + 14)
  39 #define AT91_PIN_PA15   (0x00 + 15)
  40 #define AT91_PIN_PA16   (0x00 + 16)
  41 #define AT91_PIN_PA17   (0x00 + 17)
  42 #define AT91_PIN_PA18   (0x00 + 18)
  43 #define AT91_PIN_PA19   (0x00 + 19)
  44 #define AT91_PIN_PA20   (0x00 + 20)
  45 #define AT91_PIN_PA21   (0x00 + 21)
  46 #define AT91_PIN_PA22   (0x00 + 22)
  47 #define AT91_PIN_PA23   (0x00 + 23)
  48 #define AT91_PIN_PA24   (0x00 + 24)
  49 #define AT91_PIN_PA25   (0x00 + 25)
  50 #define AT91_PIN_PA26   (0x00 + 26)
  51 #define AT91_PIN_PA27   (0x00 + 27)
  52 #define AT91_PIN_PA28   (0x00 + 28)
  53 #define AT91_PIN_PA29   (0x00 + 29)
  54 #define AT91_PIN_PA30   (0x00 + 30)
  55 #define AT91_PIN_PA31   (0x00 + 31)
  56
  57 #define AT91_PIN_PB0    (0x20 + 0)
  58 #define AT91_PIN_PB1    (0x20 + 1)
  59 #define AT91_PIN_PB2    (0x20 + 2)
  60 #define AT91_PIN_PB3    (0x20 + 3)
  61 #define AT91_PIN_PB4    (0x20 + 4)
  62 #define AT91_PIN_PB5    (0x20 + 5)
  63 #define AT91_PIN_PB6    (0x20 + 6)
  64 #define AT91_PIN_PB7    (0x20 + 7)
  65 #define AT91_PIN_PB8    (0x20 + 8)
  66 #define AT91_PIN_PB9    (0x20 + 9)
  67 #define AT91_PIN_PB10   (0x20 + 10)
  68 #define AT91_PIN_PB11   (0x20 + 11)
  69 #define AT91_PIN_PB12   (0x20 + 12)
  70 #define AT91_PIN_PB13   (0x20 + 13)
  71 #define AT91_PIN_PB14   (0x20 + 14)
  72 #define AT91_PIN_PB15   (0x20 + 15)
  73 #define AT91_PIN_PB16   (0x20 + 16)
  74 #define AT91_PIN_PB17   (0x20 + 17)
  75 #define AT91_PIN_PB18   (0x20 + 18)
  76 #define AT91_PIN_PB19   (0x20 + 19)
  77 #define AT91_PIN_PB20   (0x20 + 20)
  78 #define AT91_PIN_PB21   (0x20 + 21)
  79 #define AT91_PIN_PB22   (0x20 + 22)
  80 #define AT91_PIN_PB23   (0x20 + 23)
  81 #define AT91_PIN_PB24   (0x20 + 24)
  82 #define AT91_PIN_PB25   (0x20 + 25)
  83 #define AT91_PIN_PB26   (0x20 + 26)
  84 #define AT91_PIN_PB27   (0x20 + 27)
  85 #define AT91_PIN_PB28   (0x20 + 28)
  86 #define AT91_PIN_PB29   (0x20 + 29)
  87 #define AT91_PIN_PB30   (0x20 + 30)
  88 #define AT91_PIN_PB31   (0x20 + 31)
  89
  90 #define AT91_PIN_PC0    (0x40 + 0)
  91 #define AT91_PIN_PC1    (0x40 + 1)
  92 #define AT91_PIN_PC2    (0x40 + 2)
  93 #define AT91_PIN_PC3    (0x40 + 3)
  94 #define AT91_PIN_PC4    (0x40 + 4)
  95 #define AT91_PIN_PC5    (0x40 + 5)
  96 #define AT91_PIN_PC6    (0x40 + 6)
  97 #define AT91_PIN_PC7    (0x40 + 7)
  98 #define AT91_PIN_PC8    (0x40 + 8)
  99 #define AT91_PIN_PC9    (0x40 + 9)
 100 #define AT91_PIN_PC10   (0x40 + 10)
 101 #define AT91_PIN_PC11   (0x40 + 11)
 102 #define AT91_PIN_PC12   (0x40 + 12)
 103 #define AT91_PIN_PC13   (0x40 + 13)
 104 #define AT91_PIN_PC14   (0x40 + 14)
 105 #define AT91_PIN_PC15   (0x40 + 15)
 106 #define AT91_PIN_PC16   (0x40 + 16)
 107 #define AT91_PIN_PC17   (0x40 + 17)
 108 #define AT91_PIN_PC18   (0x40 + 18)
 109 #define AT91_PIN_PC19   (0x40 + 19)
 110 #define AT91_PIN_PC20   (0x40 + 20)
 111 #define AT91_PIN_PC21   (0x40 + 21)
 112 #define AT91_PIN_PC22   (0x40 + 22)
 113 #define AT91_PIN_PC23   (0x40 + 23)
 114 #define AT91_PIN_PC24   (0x40 + 24)
 115 #define AT91_PIN_PC25   (0x40 + 25)
 116 #define AT91_PIN_PC26   (0x40 + 26)
 117 #define AT91_PIN_PC27   (0x40 + 27)
 118 #define AT91_PIN_PC28   (0x40 + 28)
 119 #define AT91_PIN_PC29   (0x40 + 29)
 120 #define AT91_PIN_PC30   (0x40 + 30)
 121 #define AT91_PIN_PC31   (0x40 + 31)
 122
 123 #define AT91_PIN_PD0    (0x60 + 0)
 124 #define AT91_PIN_PD1    (0x60 + 1)
 125 #define AT91_PIN_PD2    (0x60 + 2)
 126 #define AT91_PIN_PD3    (0x60 + 3)
 127 #define AT91_PIN_PD4    (0x60 + 4)
 128 #define AT91_PIN_PD5    (0x60 + 5)
 129 #define AT91_PIN_PD6    (0x60 + 6)
 130 #define AT91_PIN_PD7    (0x60 + 7)
 131 #define AT91_PIN_PD8    (0x60 + 8)
 132 #define AT91_PIN_PD9    (0x60 + 9)
 133 #define AT91_PIN_PD10   (0x60 + 10)
 134 #define AT91_PIN_PD11   (0x60 + 11)
 135 #define AT91_PIN_PD12   (0x60 + 12)
 136 #define AT91_PIN_PD13   (0x60 + 13)
 137 #define AT91_PIN_PD14   (0x60 + 14)
 138 #define AT91_PIN_PD15   (0x60 + 15)
 139 #define AT91_PIN_PD16   (0x60 + 16)
 140 #define AT91_PIN_PD17   (0x60 + 17)
 141 #define AT91_PIN_PD18   (0x60 + 18)
 142 #define AT91_PIN_PD19   (0x60 + 19)
 143 #define AT91_PIN_PD20   (0x60 + 20)
 144 #define AT91_PIN_PD21   (0x60 + 21)
 145 #define AT91_PIN_PD22   (0x60 + 22)
 146 #define AT91_PIN_PD23   (0x60 + 23)
 147 #define AT91_PIN_PD24   (0x60 + 24)
 148 #define AT91_PIN_PD25   (0x60 + 25)
 149 #define AT91_PIN_PD26   (0x60 + 26)
 150 #define AT91_PIN_PD27   (0x60 + 27)
 151 #define AT91_PIN_PD28   (0x60 + 28)
 152 #define AT91_PIN_PD29   (0x60 + 29)
 153 #define AT91_PIN_PD30   (0x60 + 30)
 154 #define AT91_PIN_PD31   (0x60 + 31)
 155
 156 #define AT91_PIN_PE0    (0x80 + 0)
 157 #define AT91_PIN_PE1    (0x80 + 1)
 158 #define AT91_PIN_PE2    (0x80 + 2)
 159 #define AT91_PIN_PE3    (0x80 + 3)
 160 #define AT91_PIN_PE4    (0x80 + 4)
 161 #define AT91_PIN_PE5    (0x80 + 5)
 162 #define AT91_PIN_PE6    (0x80 + 6)
 163 #define AT91_PIN_PE7    (0x80 + 7)
 164 #define AT91_PIN_PE8    (0x80 + 8)
 165 #define AT91_PIN_PE9    (0x80 + 9)
 166 #define AT91_PIN_PE10   (0x80 + 10)
 167 #define AT91_PIN_PE11   (0x80 + 11)
 168 #define AT91_PIN_PE12   (0x80 + 12)
 169 #define AT91_PIN_PE13   (0x80 + 13)
 170 #define AT91_PIN_PE14   (0x80 + 14)
 171 #define AT91_PIN_PE15   (0x80 + 15)
 172 #define AT91_PIN_PE16   (0x80 + 16)
 173 #define AT91_PIN_PE17   (0x80 + 17)
 174 #define AT91_PIN_PE18   (0x80 + 18)
 175 #define AT91_PIN_PE19   (0x80 + 19)
 176 #define AT91_PIN_PE20   (0x80 + 20)
 177 #define AT91_PIN_PE21   (0x80 + 21)
 178 #define AT91_PIN_PE22   (0x80 + 22)
 179 #define AT91_PIN_PE23   (0x80 + 23)
 180 #define AT91_PIN_PE24   (0x80 + 24)
 181 #define AT91_PIN_PE25   (0x80 + 25)
 182 #define AT91_PIN_PE26   (0x80 + 26)
 183 #define AT91_PIN_PE27   (0x80 + 27)
 184 #define AT91_PIN_PE28   (0x80 + 28)
 185 #define AT91_PIN_PE29   (0x80 + 29)
 186 #define AT91_PIN_PE30   (0x80 + 30)
 187 #define AT91_PIN_PE31   (0x80 + 31)
 188
 189 #ifndef __ASSEMBLY__
 190 /* setup setup routines, called from board init or driver probe() */
 191 extern int __init_or_module at91_set_GPIO_periph(unsigned pin, int use_pullup);
 192 extern int __init_or_module at91_set_A_periph(unsigned pin, int use_pullup);
 193 extern int __init_or_module at91_set_B_periph(unsigned pin, int use_pullup);
 194 extern int __init_or_module at91_set_gpio_input(unsigned pin, int use_pullup);
 195 extern int __init_or_module at91_set_gpio_output(unsigned pin, int value);
 196 extern int __init_or_module at91_set_deglitch(unsigned pin, int is_on);
 197 extern int __init_or_module at91_set_multi_drive(unsigned pin, int is_on);
 198
 199 /* callable at any time */
 200 extern int at91_set_gpio_value(unsigned pin, int value);
 201 extern int at91_get_gpio_value(unsigned pin);
 202
 203 /* callable only from core power-management code */
 204 extern void at91_gpio_suspend(void);
 205 extern void at91_gpio_resume(void);
 206
 207 /*-------------------------------------------------------------------------*/
 208
 209 /* wrappers for "new style" GPIO calls. the old AT91-specific ones should
 210  * eventually be removed (along with this errno.h inclusion), and the
 211  * gpio request/free calls should probably be implemented.
 212  */
 213
 214 #include <asm/errno.h>
 215
 216 #define gpio_to_irq(gpio) (gpio + NR_AIC_IRQS)
 217 #define irq_to_gpio(irq)  (irq - NR_AIC_IRQS)
 218
 219 #endif  /* __ASSEMBLY__ */
 220
 221 #endif