LXR linux/arch/arm/mach-s3c64xx/include/mach/gpio-samsung.h

   1/*
   2 * Copyright 2008 Openmoko, Inc.
   3 * Copyright 2008 Simtec Electronics
   4 *      http://armlinux.simtec.co.uk/
   5 *      Ben Dooks <ben@simtec.co.uk>
   6 *
   7 * S3C6400 - GPIO lib support
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License version 2 as
  11 * published by the Free Software Foundation.
  12*/
  13
  14#ifndef GPIO_SAMSUNG_S3C64XX_H
  15#define GPIO_SAMSUNG_S3C64XX_H
  16
  17/* GPIO bank sizes */
  18#define S3C64XX_GPIO_A_NR       (8)
  19#define S3C64XX_GPIO_B_NR       (7)
  20#define S3C64XX_GPIO_C_NR       (8)
  21#define S3C64XX_GPIO_D_NR       (5)
  22#define S3C64XX_GPIO_E_NR       (5)
  23#define S3C64XX_GPIO_F_NR       (16)
  24#define S3C64XX_GPIO_G_NR       (7)
  25#define S3C64XX_GPIO_H_NR       (10)
  26#define S3C64XX_GPIO_I_NR       (16)
  27#define S3C64XX_GPIO_J_NR       (12)
  28#define S3C64XX_GPIO_K_NR       (16)
  29#define S3C64XX_GPIO_L_NR       (15)
  30#define S3C64XX_GPIO_M_NR       (6)
  31#define S3C64XX_GPIO_N_NR       (16)
  32#define S3C64XX_GPIO_O_NR       (16)
  33#define S3C64XX_GPIO_P_NR       (15)
  34#define S3C64XX_GPIO_Q_NR       (9)
  35
  36/* GPIO bank numbes */
  37
  38/* CONFIG_S3C_GPIO_SPACE allows the user to select extra
  39 * space for debugging purposes so that any accidental
  40 * change from one gpio bank to another can be caught.
  41*/
  42
  43#define S3C64XX_GPIO_NEXT(__gpio) \
  44        ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
  45
  46enum s3c_gpio_number {
  47        S3C64XX_GPIO_A_START = 0,
  48        S3C64XX_GPIO_B_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_A),
  49        S3C64XX_GPIO_C_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_B),
  50        S3C64XX_GPIO_D_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_C),
  51        S3C64XX_GPIO_E_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_D),
  52        S3C64XX_GPIO_F_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_E),
  53        S3C64XX_GPIO_G_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_F),
  54        S3C64XX_GPIO_H_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_G),
  55        S3C64XX_GPIO_I_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_H),
  56        S3C64XX_GPIO_J_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_I),
  57        S3C64XX_GPIO_K_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_J),
  58        S3C64XX_GPIO_L_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_K),
  59        S3C64XX_GPIO_M_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_L),
  60        S3C64XX_GPIO_N_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_M),
  61        S3C64XX_GPIO_O_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_N),
  62        S3C64XX_GPIO_P_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_O),
  63        S3C64XX_GPIO_Q_START = S3C64XX_GPIO_NEXT(S3C64XX_GPIO_P),
  64};
  65
  66/* S3C64XX GPIO number definitions. */
  67
  68#define S3C64XX_GPA(_nr)        (S3C64XX_GPIO_A_START + (_nr))
  69#define S3C64XX_GPB(_nr)        (S3C64XX_GPIO_B_START + (_nr))
  70#define S3C64XX_GPC(_nr)        (S3C64XX_GPIO_C_START + (_nr))
  71#define S3C64XX_GPD(_nr)        (S3C64XX_GPIO_D_START + (_nr))
  72#define S3C64XX_GPE(_nr)        (S3C64XX_GPIO_E_START + (_nr))
  73#define S3C64XX_GPF(_nr)        (S3C64XX_GPIO_F_START + (_nr))
  74#define S3C64XX_GPG(_nr)        (S3C64XX_GPIO_G_START + (_nr))
  75#define S3C64XX_GPH(_nr)        (S3C64XX_GPIO_H_START + (_nr))
  76#define S3C64XX_GPI(_nr)        (S3C64XX_GPIO_I_START + (_nr))
  77#define S3C64XX_GPJ(_nr)        (S3C64XX_GPIO_J_START + (_nr))
  78#define S3C64XX_GPK(_nr)        (S3C64XX_GPIO_K_START + (_nr))
  79#define S3C64XX_GPL(_nr)        (S3C64XX_GPIO_L_START + (_nr))
  80#define S3C64XX_GPM(_nr)        (S3C64XX_GPIO_M_START + (_nr))
  81#define S3C64XX_GPN(_nr)        (S3C64XX_GPIO_N_START + (_nr))
  82#define S3C64XX_GPO(_nr)        (S3C64XX_GPIO_O_START + (_nr))
  83#define S3C64XX_GPP(_nr)        (S3C64XX_GPIO_P_START + (_nr))
  84#define S3C64XX_GPQ(_nr)        (S3C64XX_GPIO_Q_START + (_nr))
  85
  86/* the end of the S3C64XX specific gpios */
  87#define S3C64XX_GPIO_END        (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
  88#define S3C_GPIO_END            S3C64XX_GPIO_END
  89
  90/* define the number of gpios we need to the one after the GPQ() range */
  91#define GPIO_BOARD_START (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
  92
  93#endif /* GPIO_SAMSUNG_S3C64XX_H */
  94
  95