arch/avr32/include/asm/arch-at32ap700x/gpio.h

   1 /*
   2  * Copyright (C) 2006, 2008 Atmel Corporation
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22 #ifndef __ASM_AVR32_ARCH_GPIO_H__
  23 #define __ASM_AVR32_ARCH_GPIO_H__
  24
  25 #include <asm/arch/chip-features.h>
  26 #include <asm/arch/memory-map.h>
  27
  28 #define NR_GPIO_CONTROLLERS     5
  29
  30 /*
  31  * Pin numbers identifying specific GPIO pins on the chip.
  32  */
  33 #define GPIO_PIOA_BASE  (0)
  34 #define GPIO_PIOB_BASE  (GPIO_PIOA_BASE + 32)
  35 #define GPIO_PIOC_BASE  (GPIO_PIOB_BASE + 32)
  36 #define GPIO_PIOD_BASE  (GPIO_PIOC_BASE + 32)
  37 #define GPIO_PIOE_BASE  (GPIO_PIOD_BASE + 32)
  38 #define GPIO_PIN_PA(x)  (GPIO_PIOA_BASE + (x))
  39 #define GPIO_PIN_PB(x)  (GPIO_PIOB_BASE + (x))
  40 #define GPIO_PIN_PC(x)  (GPIO_PIOC_BASE + (x))
  41 #define GPIO_PIN_PD(x)  (GPIO_PIOD_BASE + (x))
  42 #define GPIO_PIN_PE(x)  (GPIO_PIOE_BASE + (x))
  43
  44 static inline void *pio_pin_to_port(unsigned int pin)
  45 {
  46         switch (pin >> 5) {
  47         case 0:
  48                 return (void *)PIOA_BASE;
  49         case 1:
  50                 return (void *)PIOB_BASE;
  51         case 2:
  52                 return (void *)PIOC_BASE;
  53         case 3:
  54                 return (void *)PIOD_BASE;
  55         case 4:
  56                 return (void *)PIOE_BASE;
  57         default:
  58                 return NULL;
  59         }
  60 }
  61
  62 #include <asm/arch-common/portmux-pio.h>
  63
  64 #endif /* __ASM_AVR32_ARCH_GPIO_H__ */