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 #define gpio_bank(x)    ((x) >> 4)
  11 #define gpio_bit(x)     (1<<((x) & 0xF))
  12 #define gpio_sub_n(x)   ((x) & 0xF)
  13
  14 #define GPIO_BANKSIZE   16
  15 #define GPIO_BANK_NUM   DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)
  16
  17 #include <mach/gpio.h>
  18
  19 #define GPIO_0  0
  20 #define GPIO_1  1
  21 #define GPIO_2  2
  22 #define GPIO_3  3
  23 #define GPIO_4  4
  24 #define GPIO_5  5
  25 #define GPIO_6  6
  26 #define GPIO_7  7
  27 #define GPIO_8  8
  28 #define GPIO_9  9
  29 #define GPIO_10 10
  30 #define GPIO_11 11
  31 #define GPIO_12 12
  32 #define GPIO_13 13
  33 #define GPIO_14 14
  34 #define GPIO_15 15
  35 #define GPIO_16 16
  36 #define GPIO_17 17
  37 #define GPIO_18 18
  38 #define GPIO_19 19
  39 #define GPIO_20 20
  40 #define GPIO_21 21
  41 #define GPIO_22 22
  42 #define GPIO_23 23
  43 #define GPIO_24 24
  44 #define GPIO_25 25
  45 #define GPIO_26 26
  46 #define GPIO_27 27
  47 #define GPIO_28 28
  48 #define GPIO_29 29
  49 #define GPIO_30 30
  50 #define GPIO_31 31
  51 #define GPIO_32 32
  52 #define GPIO_33 33
  53 #define GPIO_34 34
  54 #define GPIO_35 35
  55 #define GPIO_36 36
  56 #define GPIO_37 37
  57 #define GPIO_38 38
  58 #define GPIO_39 39
  59 #define GPIO_40 40
  60 #define GPIO_41 41
  61 #define GPIO_42 42
  62 #define GPIO_43 43
  63 #define GPIO_44 44
  64 #define GPIO_45 45
  65 #define GPIO_46 46
  66 #define GPIO_47 47
  67
  68 #define PERIPHERAL_USAGE 1
  69 #define GPIO_USAGE 0
  70
  71 #ifndef __ASSEMBLY__
  72
  73 /***********************************************************
  74 *
  75 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
  76 *
  77 * INPUTS/OUTPUTS:
  78 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
  79 *
  80 *
  81 * DESCRIPTION: These functions abstract direct register access
  82 *              to Blackfin processor General Purpose
  83 *              Ports Regsiters
  84 *
  85 * CAUTION: These functions do not belong to the GPIO Driver API
  86 *************************************************************
  87 * MODIFICATION HISTORY :
  88 **************************************************************/
  89
  90 #ifndef CONFIG_BF54x
  91 void set_gpio_dir(unsigned, unsigned short);
  92 void set_gpio_inen(unsigned, unsigned short);
  93 void set_gpio_polar(unsigned, unsigned short);
  94 void set_gpio_edge(unsigned, unsigned short);
  95 void set_gpio_both(unsigned, unsigned short);
  96 void set_gpio_data(unsigned, unsigned short);
  97 void set_gpio_maska(unsigned, unsigned short);
  98 void set_gpio_maskb(unsigned, unsigned short);
  99 void set_gpio_toggle(unsigned);
 100 void set_gpiop_dir(unsigned, unsigned short);
 101 void set_gpiop_inen(unsigned, unsigned short);
 102 void set_gpiop_polar(unsigned, unsigned short);
 103 void set_gpiop_edge(unsigned, unsigned short);
 104 void set_gpiop_both(unsigned, unsigned short);
 105 void set_gpiop_data(unsigned, unsigned short);
 106 void set_gpiop_maska(unsigned, unsigned short);
 107 void set_gpiop_maskb(unsigned, unsigned short);
 108 unsigned short get_gpio_dir(unsigned);
 109 unsigned short get_gpio_inen(unsigned);
 110 unsigned short get_gpio_polar(unsigned);
 111 unsigned short get_gpio_edge(unsigned);
 112 unsigned short get_gpio_both(unsigned);
 113 unsigned short get_gpio_maska(unsigned);
 114 unsigned short get_gpio_maskb(unsigned);
 115 unsigned short get_gpio_data(unsigned);
 116 unsigned short get_gpiop_dir(unsigned);
 117 unsigned short get_gpiop_inen(unsigned);
 118 unsigned short get_gpiop_polar(unsigned);
 119 unsigned short get_gpiop_edge(unsigned);
 120 unsigned short get_gpiop_both(unsigned);
 121 unsigned short get_gpiop_maska(unsigned);
 122 unsigned short get_gpiop_maskb(unsigned);
 123 unsigned short get_gpiop_data(unsigned);
 124
 125 struct gpio_port_t {
 126         unsigned short data;
 127         unsigned short dummy1;
 128         unsigned short data_clear;
 129         unsigned short dummy2;
 130         unsigned short data_set;
 131         unsigned short dummy3;
 132         unsigned short toggle;
 133         unsigned short dummy4;
 134         unsigned short maska;
 135         unsigned short dummy5;
 136         unsigned short maska_clear;
 137         unsigned short dummy6;
 138         unsigned short maska_set;
 139         unsigned short dummy7;
 140         unsigned short maska_toggle;
 141         unsigned short dummy8;
 142         unsigned short maskb;
 143         unsigned short dummy9;
 144         unsigned short maskb_clear;
 145         unsigned short dummy10;
 146         unsigned short maskb_set;
 147         unsigned short dummy11;
 148         unsigned short maskb_toggle;
 149         unsigned short dummy12;
 150         unsigned short dir;
 151         unsigned short dummy13;
 152         unsigned short polar;
 153         unsigned short dummy14;
 154         unsigned short edge;
 155         unsigned short dummy15;
 156         unsigned short both;
 157         unsigned short dummy16;
 158         unsigned short inen;
 159 };
 160 #endif
 161
 162 #ifdef CONFIG_PM
 163
 164 unsigned int bfin_pm_standby_setup(void);
 165 void bfin_pm_standby_restore(void);
 166
 167 void bfin_gpio_pm_hibernate_restore(void);
 168 void bfin_gpio_pm_hibernate_suspend(void);
 169
 170 #ifndef CONFIG_BF54x
 171 #define PM_WAKE_RISING  0x1
 172 #define PM_WAKE_FALLING 0x2
 173 #define PM_WAKE_HIGH    0x4
 174 #define PM_WAKE_LOW     0x8
 175 #define PM_WAKE_BOTH_EDGES      (PM_WAKE_RISING | PM_WAKE_FALLING)
 176 #define PM_WAKE_IGNORE  0xF0
 177
 178 int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
 179 void gpio_pm_wakeup_free(unsigned gpio);
 180
 181 struct gpio_port_s {
 182         unsigned short data;
 183         unsigned short maska;
 184         unsigned short maskb;
 185         unsigned short dir;
 186         unsigned short polar;
 187         unsigned short edge;
 188         unsigned short both;
 189         unsigned short inen;
 190
 191         unsigned short fer;
 192         unsigned short reserved;
 193         unsigned short mux;
 194 };
 195 #endif /*CONFIG_BF54x*/
 196 #endif /*CONFIG_PM*/
 197 /***********************************************************
 198 *
 199 * FUNCTIONS: Blackfin GPIO Driver
 200 *
 201 * INPUTS/OUTPUTS:
 202 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 203 *
 204 *
 205 * DESCRIPTION: Blackfin GPIO Driver API
 206 *
 207 * CAUTION:
 208 *************************************************************
 209 * MODIFICATION HISTORY :
 210 **************************************************************/
 211
 212 int bfin_gpio_request(unsigned gpio, const char *label);
 213 void bfin_gpio_free(unsigned gpio);
 214 int bfin_gpio_irq_request(unsigned gpio, const char *label);
 215 void bfin_gpio_irq_free(unsigned gpio);
 216 int bfin_gpio_direction_input(unsigned gpio);
 217 int bfin_gpio_direction_output(unsigned gpio, int value);
 218 int bfin_gpio_get_value(unsigned gpio);
 219 void bfin_gpio_set_value(unsigned gpio, int value);
 220
 221 #ifdef CONFIG_GPIOLIB
 222 #include <asm-generic/gpio.h>           /* cansleep wrappers */
 223
 224 static inline int gpio_get_value(unsigned int gpio)
 225 {
 226         if (gpio < MAX_BLACKFIN_GPIOS)
 227                 return bfin_gpio_get_value(gpio);
 228         else
 229                 return __gpio_get_value(gpio);
 230 }
 231
 232 static inline void gpio_set_value(unsigned int gpio, int value)
 233 {
 234         if (gpio < MAX_BLACKFIN_GPIOS)
 235                 bfin_gpio_set_value(gpio, value);
 236         else
 237                 __gpio_set_value(gpio, value);
 238 }
 239
 240 static inline int gpio_cansleep(unsigned int gpio)
 241 {
 242         return __gpio_cansleep(gpio);
 243 }
 244
 245 #else /* !CONFIG_GPIOLIB */
 246
 247 static inline int gpio_request(unsigned gpio, const char *label)
 248 {
 249         return bfin_gpio_request(gpio, label);
 250 }
 251
 252 static inline void gpio_free(unsigned gpio)
 253 {
 254         return bfin_gpio_free(gpio);
 255 }
 256
 257 static inline int gpio_direction_input(unsigned gpio)
 258 {
 259         return bfin_gpio_direction_input(gpio);
 260 }
 261
 262 static inline int gpio_direction_output(unsigned gpio, int value)
 263 {
 264         return bfin_gpio_direction_output(gpio, value);
 265 }
 266
 267 static inline int gpio_get_value(unsigned gpio)
 268 {
 269         return bfin_gpio_get_value(gpio);
 270 }
 271
 272 static inline void gpio_set_value(unsigned gpio, int value)
 273 {
 274         return bfin_gpio_set_value(gpio, value);
 275 }
 276
 277 #include <asm-generic/gpio.h>           /* cansleep wrappers */
 278 #endif  /* !CONFIG_GPIOLIB */
 279 #include <asm/irq.h>
 280
 281 static inline int gpio_to_irq(unsigned gpio)
 282 {
 283         if (likely(gpio < MAX_BLACKFIN_GPIOS))
 284                 return gpio + GPIO_IRQ_BASE;
 285
 286         return -EINVAL;
 287 }
 288
 289 static inline int irq_to_gpio(unsigned irq)
 290 {
 291         return (irq - GPIO_IRQ_BASE);
 292 }
 293
 294 #endif /* __ASSEMBLY__ */
 295
 296 #endif /* __ARCH_BLACKFIN_GPIO_H__ */