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
  76 void set_gpio_dir(unsigned, unsigned short);
  77 void set_gpio_inen(unsigned, unsigned short);
  78 void set_gpio_polar(unsigned, unsigned short);
  79 void set_gpio_edge(unsigned, unsigned short);
  80 void set_gpio_both(unsigned, unsigned short);
  81 void set_gpio_data(unsigned, unsigned short);
  82 void set_gpio_maska(unsigned, unsigned short);
  83 void set_gpio_maskb(unsigned, unsigned short);
  84 void set_gpio_toggle(unsigned);
  85 void set_gpiop_dir(unsigned, unsigned short);
  86 void set_gpiop_inen(unsigned, unsigned short);
  87 void set_gpiop_polar(unsigned, unsigned short);
  88 void set_gpiop_edge(unsigned, unsigned short);
  89 void set_gpiop_both(unsigned, unsigned short);
  90 void set_gpiop_data(unsigned, unsigned short);
  91 void set_gpiop_maska(unsigned, unsigned short);
  92 void set_gpiop_maskb(unsigned, unsigned short);
  93 unsigned short get_gpio_dir(unsigned);
  94 unsigned short get_gpio_inen(unsigned);
  95 unsigned short get_gpio_polar(unsigned);
  96 unsigned short get_gpio_edge(unsigned);
  97 unsigned short get_gpio_both(unsigned);
  98 unsigned short get_gpio_maska(unsigned);
  99 unsigned short get_gpio_maskb(unsigned);
 100 unsigned short get_gpio_data(unsigned);
 101 unsigned short get_gpiop_dir(unsigned);
 102 unsigned short get_gpiop_inen(unsigned);
 103 unsigned short get_gpiop_polar(unsigned);
 104 unsigned short get_gpiop_edge(unsigned);
 105 unsigned short get_gpiop_both(unsigned);
 106 unsigned short get_gpiop_maska(unsigned);
 107 unsigned short get_gpiop_maskb(unsigned);
 108 unsigned short get_gpiop_data(unsigned);
 109
 110 struct 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
 146 extern struct gpio_port_t * const gpio_array[];
 147 #endif
 148
 149 #ifdef ADI_SPECIAL_GPIO_BANKS
 150 void special_gpio_free(unsigned gpio);
 151 int special_gpio_request(unsigned gpio, const char *label);
 152 #endif
 153
 154 void gpio_labels(void);
 155
 156 static 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__ */