LXR uboot/arch/blackfin/include/asm/gpio.h

   1/*
   2 * Copyright 2006-2009 Analog Devices Inc.
   3 *
   4 * Licensed under the GPL-2 or later.
   5 */
   6
   7#ifndef __ARCH_BLACKFIN_GPIO_H__
   8#define __ARCH_BLACKFIN_GPIO_H__
   9
  10#include <asm-generic/gpio.h>
  11#include <asm/portmux.h>
  12
  13#define gpio_bank(x)    ((x) >> 4)
  14#define gpio_bit(x)     (1<<((x) & 0xF))
  15#define gpio_sub_n(x)   ((x) & 0xF)
  16
  17#define GPIO_BANKSIZE   16
  18#define GPIO_BANK_NUM   DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)
  19
  20#define GPIO_0  0
  21#define GPIO_1  1
  22#define GPIO_2  2
  23#define GPIO_3  3
  24#define GPIO_4  4
  25#define GPIO_5  5
  26#define GPIO_6  6
  27#define GPIO_7  7
  28#define GPIO_8  8
  29#define GPIO_9  9
  30#define GPIO_10 10
  31#define GPIO_11 11
  32#define GPIO_12 12
  33#define GPIO_13 13
  34#define GPIO_14 14
  35#define GPIO_15 15
  36#define GPIO_16 16
  37#define GPIO_17 17
  38#define GPIO_18 18
  39#define GPIO_19 19
  40#define GPIO_20 20
  41#define GPIO_21 21
  42#define GPIO_22 22
  43#define GPIO_23 23
  44#define GPIO_24 24
  45#define GPIO_25 25
  46#define GPIO_26 26
  47#define GPIO_27 27
  48#define GPIO_28 28
  49#define GPIO_29 29
  50#define GPIO_30 30
  51#define GPIO_31 31
  52#define GPIO_32 32
  53#define GPIO_33 33
  54#define GPIO_34 34
  55#define GPIO_35 35
  56#define GPIO_36 36
  57#define GPIO_37 37
  58#define GPIO_38 38
  59#define GPIO_39 39
  60#define GPIO_40 40
  61#define GPIO_41 41
  62#define GPIO_42 42
  63#define GPIO_43 43
  64#define GPIO_44 44
  65#define GPIO_45 45
  66#define GPIO_46 46
  67#define GPIO_47 47
  68
  69#define PERIPHERAL_USAGE 1
  70#define GPIO_USAGE 0
  71#define MAX_GPIOS MAX_BLACKFIN_GPIOS
  72
  73#ifndef __ASSEMBLY__
  74
  75#ifndef CONFIG_ADI_GPIO2
  76void set_gpio_dir(unsigned, unsigned short);
  77void set_gpio_inen(unsigned, unsigned short);
  78void set_gpio_polar(unsigned, unsigned short);
  79void set_gpio_edge(unsigned, unsigned short);
  80void set_gpio_both(unsigned, unsigned short);
  81void set_gpio_data(unsigned, unsigned short);
  82void set_gpio_maska(unsigned, unsigned short);
  83void set_gpio_maskb(unsigned, unsigned short);
  84void set_gpio_toggle(unsigned);
  85void set_gpiop_dir(unsigned, unsigned short);
  86void set_gpiop_inen(unsigned, unsigned short);
  87void set_gpiop_polar(unsigned, unsigned short);
  88void set_gpiop_edge(unsigned, unsigned short);
  89void set_gpiop_both(unsigned, unsigned short);
  90void set_gpiop_data(unsigned, unsigned short);
  91void set_gpiop_maska(unsigned, unsigned short);
  92void set_gpiop_maskb(unsigned, unsigned short);
  93unsigned short get_gpio_dir(unsigned);
  94unsigned short get_gpio_inen(unsigned);
  95unsigned short get_gpio_polar(unsigned);
  96unsigned short get_gpio_edge(unsigned);
  97unsigned short get_gpio_both(unsigned);
  98unsigned short get_gpio_maska(unsigned);
  99unsigned short get_gpio_maskb(unsigned);
 100unsigned short get_gpio_data(unsigned);
 101unsigned short get_gpiop_dir(unsigned);
 102unsigned short get_gpiop_inen(unsigned);
 103unsigned short get_gpiop_polar(unsigned);
 104unsigned short get_gpiop_edge(unsigned);
 105unsigned short get_gpiop_both(unsigned);
 106unsigned short get_gpiop_maska(unsigned);
 107unsigned short get_gpiop_maskb(unsigned);
 108unsigned short get_gpiop_data(unsigned);
 109
 110struct gpio_port_t {
 111        unsigned short data;
 112        unsigned short dummy1;
 113        unsigned short data_clear;
 114        unsigned short dummy2;
 115        unsigned short data_set;
 116        unsigned short dummy3;
 117        unsigned short toggle;
 118        unsigned short dummy4;
 119        unsigned short maska;
 120        unsigned short dummy5;
 121        unsigned short maska_clear;
 122        unsigned short dummy6;
 123        unsigned short maska_set;
 124        unsigned short dummy7;
 125        unsigned short maska_toggle;
 126        unsigned short dummy8;
 127        unsigned short maskb;
 128        unsigned short dummy9;
 129        unsigned short maskb_clear;
 130        unsigned short dummy10;
 131        unsigned short maskb_set;
 132        unsigned short dummy11;
 133        unsigned short maskb_toggle;
 134        unsigned short dummy12;
 135        unsigned short dir;
 136        unsigned short dummy13;
 137        unsigned short polar;
 138        unsigned short dummy14;
 139        unsigned short edge;
 140        unsigned short dummy15;
 141        unsigned short both;
 142        unsigned short dummy16;
 143        unsigned short inen;
 144};
 145#else
 146extern struct gpio_port_t * const gpio_array[];
 147#endif
 148
 149#ifdef ADI_SPECIAL_GPIO_BANKS
 150void special_gpio_free(unsigned gpio);
 151int special_gpio_request(unsigned gpio, const char *label);
 152#endif
 153
 154void gpio_labels(void);
 155
 156static inline int gpio_is_valid(int number)
 157{
 158        return number >= 0 && number < MAX_GPIOS;
 159}
 160
 161#include <linux/ctype.h>
 162
 163#define gpio_status() gpio_labels()
 164
 165#endif /* __ASSEMBLY__ */
 166
 167#endif /* __ARCH_BLACKFIN_GPIO_H__ */
 168