arch/blackfin/include/asm/gpio.h

   1 /*
   2  * File:         arch/blackfin/kernel/bfin_gpio.h
   3  * Based on:
   4  * Author:       Michael Hennerich (hennerich@blackfin.uclinux.org)
   5  *
   6  * Created:
   7  * Description:
   8  *
   9  * Modified:
  10  *               Copyright 2004-2008 Analog Devices Inc.
  11  *
  12  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, see the file COPYING, or write
  26  * to the Free Software Foundation, Inc.,
  27  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  28  */
  29
  30 /*
  31 *  Number     BF537/6/4    BF561    BF533/2/1
  32 *             BF527/5/2
  33 *
  34 *  GPIO_0       PF0         PF0        PF0
  35 *  GPIO_1       PF1         PF1        PF1
  36 *  GPIO_2       PF2         PF2        PF2
  37 *  GPIO_3       PF3         PF3        PF3
  38 *  GPIO_4       PF4         PF4        PF4
  39 *  GPIO_5       PF5         PF5        PF5
  40 *  GPIO_6       PF6         PF6        PF6
  41 *  GPIO_7       PF7         PF7        PF7
  42 *  GPIO_8       PF8         PF8        PF8
  43 *  GPIO_9       PF9         PF9        PF9
  44 *  GPIO_10      PF10        PF10       PF10
  45 *  GPIO_11      PF11        PF11       PF11
  46 *  GPIO_12      PF12        PF12       PF12
  47 *  GPIO_13      PF13        PF13       PF13
  48 *  GPIO_14      PF14        PF14       PF14
  49 *  GPIO_15      PF15        PF15       PF15
  50 *  GPIO_16      PG0         PF16
  51 *  GPIO_17      PG1         PF17
  52 *  GPIO_18      PG2         PF18
  53 *  GPIO_19      PG3         PF19
  54 *  GPIO_20      PG4         PF20
  55 *  GPIO_21      PG5         PF21
  56 *  GPIO_22      PG6         PF22
  57 *  GPIO_23      PG7         PF23
  58 *  GPIO_24      PG8         PF24
  59 *  GPIO_25      PG9         PF25
  60 *  GPIO_26      PG10        PF26
  61 *  GPIO_27      PG11        PF27
  62 *  GPIO_28      PG12        PF28
  63 *  GPIO_29      PG13        PF29
  64 *  GPIO_30      PG14        PF30
  65 *  GPIO_31      PG15        PF31
  66 *  GPIO_32      PH0         PF32
  67 *  GPIO_33      PH1         PF33
  68 *  GPIO_34      PH2         PF34
  69 *  GPIO_35      PH3         PF35
  70 *  GPIO_36      PH4         PF36
  71 *  GPIO_37      PH5         PF37
  72 *  GPIO_38      PH6         PF38
  73 *  GPIO_39      PH7         PF39
  74 *  GPIO_40      PH8         PF40
  75 *  GPIO_41      PH9         PF41
  76 *  GPIO_42      PH10        PF42
  77 *  GPIO_43      PH11        PF43
  78 *  GPIO_44      PH12        PF44
  79 *  GPIO_45      PH13        PF45
  80 *  GPIO_46      PH14        PF46
  81 *  GPIO_47      PH15        PF47
  82 */
  83
  84 #ifndef __ARCH_BLACKFIN_GPIO_H__
  85 #define __ARCH_BLACKFIN_GPIO_H__
  86
  87 #define gpio_bank(x)    ((x) >> 4)
  88 #define gpio_bit(x)     (1<<((x) & 0xF))
  89 #define gpio_sub_n(x)   ((x) & 0xF)
  90
  91 #define GPIO_BANKSIZE   16
  92 #define GPIO_BANK_NUM   DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)
  93
  94 #include <mach/gpio.h>
  95
  96 #define GPIO_0  0
  97 #define GPIO_1  1
  98 #define GPIO_2  2
  99 #define GPIO_3  3
 100 #define GPIO_4  4
 101 #define GPIO_5  5
 102 #define GPIO_6  6
 103 #define GPIO_7  7
 104 #define GPIO_8  8
 105 #define GPIO_9  9
 106 #define GPIO_10 10
 107 #define GPIO_11 11
 108 #define GPIO_12 12
 109 #define GPIO_13 13
 110 #define GPIO_14 14
 111 #define GPIO_15 15
 112 #define GPIO_16 16
 113 #define GPIO_17 17
 114 #define GPIO_18 18
 115 #define GPIO_19 19
 116 #define GPIO_20 20
 117 #define GPIO_21 21
 118 #define GPIO_22 22
 119 #define GPIO_23 23
 120 #define GPIO_24 24
 121 #define GPIO_25 25
 122 #define GPIO_26 26
 123 #define GPIO_27 27
 124 #define GPIO_28 28
 125 #define GPIO_29 29
 126 #define GPIO_30 30
 127 #define GPIO_31 31
 128 #define GPIO_32 32
 129 #define GPIO_33 33
 130 #define GPIO_34 34
 131 #define GPIO_35 35
 132 #define GPIO_36 36
 133 #define GPIO_37 37
 134 #define GPIO_38 38
 135 #define GPIO_39 39
 136 #define GPIO_40 40
 137 #define GPIO_41 41
 138 #define GPIO_42 42
 139 #define GPIO_43 43
 140 #define GPIO_44 44
 141 #define GPIO_45 45
 142 #define GPIO_46 46
 143 #define GPIO_47 47
 144
 145 #define PERIPHERAL_USAGE 1
 146 #define GPIO_USAGE 0
 147
 148 #ifndef __ASSEMBLY__
 149
 150 /***********************************************************
 151 *
 152 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
 153 *
 154 * INPUTS/OUTPUTS:
 155 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 156 *
 157 *
 158 * DESCRIPTION: These functions abstract direct register access
 159 *              to Blackfin processor General Purpose
 160 *              Ports Regsiters
 161 *
 162 * CAUTION: These functions do not belong to the GPIO Driver API
 163 *************************************************************
 164 * MODIFICATION HISTORY :
 165 **************************************************************/
 166
 167 #ifndef BF548_FAMILY
 168 void set_gpio_dir(unsigned, unsigned short);
 169 void set_gpio_inen(unsigned, unsigned short);
 170 void set_gpio_polar(unsigned, unsigned short);
 171 void set_gpio_edge(unsigned, unsigned short);
 172 void set_gpio_both(unsigned, unsigned short);
 173 void set_gpio_data(unsigned, unsigned short);
 174 void set_gpio_maska(unsigned, unsigned short);
 175 void set_gpio_maskb(unsigned, unsigned short);
 176 void set_gpio_toggle(unsigned);
 177 void set_gpiop_dir(unsigned, unsigned short);
 178 void set_gpiop_inen(unsigned, unsigned short);
 179 void set_gpiop_polar(unsigned, unsigned short);
 180 void set_gpiop_edge(unsigned, unsigned short);
 181 void set_gpiop_both(unsigned, unsigned short);
 182 void set_gpiop_data(unsigned, unsigned short);
 183 void set_gpiop_maska(unsigned, unsigned short);
 184 void set_gpiop_maskb(unsigned, unsigned short);
 185 unsigned short get_gpio_dir(unsigned);
 186 unsigned short get_gpio_inen(unsigned);
 187 unsigned short get_gpio_polar(unsigned);
 188 unsigned short get_gpio_edge(unsigned);
 189 unsigned short get_gpio_both(unsigned);
 190 unsigned short get_gpio_maska(unsigned);
 191 unsigned short get_gpio_maskb(unsigned);
 192 unsigned short get_gpio_data(unsigned);
 193 unsigned short get_gpiop_dir(unsigned);
 194 unsigned short get_gpiop_inen(unsigned);
 195 unsigned short get_gpiop_polar(unsigned);
 196 unsigned short get_gpiop_edge(unsigned);
 197 unsigned short get_gpiop_both(unsigned);
 198 unsigned short get_gpiop_maska(unsigned);
 199 unsigned short get_gpiop_maskb(unsigned);
 200 unsigned short get_gpiop_data(unsigned);
 201
 202 struct gpio_port_t {
 203         unsigned short data;
 204         unsigned short dummy1;
 205         unsigned short data_clear;
 206         unsigned short dummy2;
 207         unsigned short data_set;
 208         unsigned short dummy3;
 209         unsigned short toggle;
 210         unsigned short dummy4;
 211         unsigned short maska;
 212         unsigned short dummy5;
 213         unsigned short maska_clear;
 214         unsigned short dummy6;
 215         unsigned short maska_set;
 216         unsigned short dummy7;
 217         unsigned short maska_toggle;
 218         unsigned short dummy8;
 219         unsigned short maskb;
 220         unsigned short dummy9;
 221         unsigned short maskb_clear;
 222         unsigned short dummy10;
 223         unsigned short maskb_set;
 224         unsigned short dummy11;
 225         unsigned short maskb_toggle;
 226         unsigned short dummy12;
 227         unsigned short dir;
 228         unsigned short dummy13;
 229         unsigned short polar;
 230         unsigned short dummy14;
 231         unsigned short edge;
 232         unsigned short dummy15;
 233         unsigned short both;
 234         unsigned short dummy16;
 235         unsigned short inen;
 236 };
 237 #endif
 238
 239 #ifdef CONFIG_PM
 240
 241 unsigned int bfin_pm_standby_setup(void);
 242 void bfin_pm_standby_restore(void);
 243
 244 void bfin_gpio_pm_hibernate_restore(void);
 245 void bfin_gpio_pm_hibernate_suspend(void);
 246
 247 #ifndef CONFIG_BF54x
 248 #define PM_WAKE_RISING  0x1
 249 #define PM_WAKE_FALLING 0x2
 250 #define PM_WAKE_HIGH    0x4
 251 #define PM_WAKE_LOW     0x8
 252 #define PM_WAKE_BOTH_EDGES      (PM_WAKE_RISING | PM_WAKE_FALLING)
 253 #define PM_WAKE_IGNORE  0xF0
 254
 255 int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
 256 void gpio_pm_wakeup_free(unsigned gpio);
 257
 258 struct gpio_port_s {
 259         unsigned short data;
 260         unsigned short maska;
 261         unsigned short maskb;
 262         unsigned short dir;
 263         unsigned short polar;
 264         unsigned short edge;
 265         unsigned short both;
 266         unsigned short inen;
 267
 268         unsigned short fer;
 269         unsigned short reserved;
 270         unsigned short mux;
 271 };
 272 #endif /*CONFIG_BF54x*/
 273 #endif /*CONFIG_PM*/
 274 /***********************************************************
 275 *
 276 * FUNCTIONS: Blackfin GPIO Driver
 277 *
 278 * INPUTS/OUTPUTS:
 279 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 280 *
 281 *
 282 * DESCRIPTION: Blackfin GPIO Driver API
 283 *
 284 * CAUTION:
 285 *************************************************************
 286 * MODIFICATION HISTORY :
 287 **************************************************************/
 288
 289 int bfin_gpio_request(unsigned gpio, const char *label);
 290 void bfin_gpio_free(unsigned gpio);
 291 int bfin_gpio_irq_request(unsigned gpio, const char *label);
 292 void bfin_gpio_irq_free(unsigned gpio);
 293 int bfin_gpio_direction_input(unsigned gpio);
 294 int bfin_gpio_direction_output(unsigned gpio, int value);
 295 int bfin_gpio_get_value(unsigned gpio);
 296 void bfin_gpio_set_value(unsigned gpio, int value);
 297
 298 #ifndef BF548_FAMILY
 299 #define bfin_gpio_set_value(gpio, value)    set_gpio_data(gpio, value)
 300 #endif
 301
 302 #ifdef CONFIG_GPIOLIB
 303 #include <asm-generic/gpio.h>           /* cansleep wrappers */
 304
 305 static inline int gpio_get_value(unsigned int gpio)
 306 {
 307         if (gpio < MAX_BLACKFIN_GPIOS)
 308                 return bfin_gpio_get_value(gpio);
 309         else
 310                 return __gpio_get_value(gpio);
 311 }
 312
 313 static inline void gpio_set_value(unsigned int gpio, int value)
 314 {
 315         if (gpio < MAX_BLACKFIN_GPIOS)
 316                 bfin_gpio_set_value(gpio, value);
 317         else
 318                 __gpio_set_value(gpio, value);
 319 }
 320
 321 static inline int gpio_cansleep(unsigned int gpio)
 322 {
 323         return __gpio_cansleep(gpio);
 324 }
 325
 326 #else /* !CONFIG_GPIOLIB */
 327
 328 static inline int gpio_request(unsigned gpio, const char *label)
 329 {
 330         return bfin_gpio_request(gpio, label);
 331 }
 332
 333 static inline void gpio_free(unsigned gpio)
 334 {
 335         return bfin_gpio_free(gpio);
 336 }
 337
 338 static inline int gpio_direction_input(unsigned gpio)
 339 {
 340         return bfin_gpio_direction_input(gpio);
 341 }
 342
 343 static inline int gpio_direction_output(unsigned gpio, int value)
 344 {
 345         return bfin_gpio_direction_output(gpio, value);
 346 }
 347
 348 static inline int gpio_get_value(unsigned gpio)
 349 {
 350         return bfin_gpio_get_value(gpio);
 351 }
 352
 353 static inline void gpio_set_value(unsigned gpio, int value)
 354 {
 355         return bfin_gpio_set_value(gpio, value);
 356 }
 357
 358 #include <asm-generic/gpio.h>           /* cansleep wrappers */
 359 #endif  /* !CONFIG_GPIOLIB */
 360 #include <asm/irq.h>
 361
 362 static inline int gpio_to_irq(unsigned gpio)
 363 {
 364         return (gpio + GPIO_IRQ_BASE);
 365 }
 366
 367 static inline int irq_to_gpio(unsigned irq)
 368 {
 369         return (irq - GPIO_IRQ_BASE);
 370 }
 371
 372 #endif /* __ASSEMBLY__ */
 373
 374 #endif /* __ARCH_BLACKFIN_GPIO_H__ */