include/asm-blackfin/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
  93 #define GPIO_0  0
  94 #define GPIO_1  1
  95 #define GPIO_2  2
  96 #define GPIO_3  3
  97 #define GPIO_4  4
  98 #define GPIO_5  5
  99 #define GPIO_6  6
 100 #define GPIO_7  7
 101 #define GPIO_8  8
 102 #define GPIO_9  9
 103 #define GPIO_10 10
 104 #define GPIO_11 11
 105 #define GPIO_12 12
 106 #define GPIO_13 13
 107 #define GPIO_14 14
 108 #define GPIO_15 15
 109 #define GPIO_16 16
 110 #define GPIO_17 17
 111 #define GPIO_18 18
 112 #define GPIO_19 19
 113 #define GPIO_20 20
 114 #define GPIO_21 21
 115 #define GPIO_22 22
 116 #define GPIO_23 23
 117 #define GPIO_24 24
 118 #define GPIO_25 25
 119 #define GPIO_26 26
 120 #define GPIO_27 27
 121 #define GPIO_28 28
 122 #define GPIO_29 29
 123 #define GPIO_30 30
 124 #define GPIO_31 31
 125 #define GPIO_32 32
 126 #define GPIO_33 33
 127 #define GPIO_34 34
 128 #define GPIO_35 35
 129 #define GPIO_36 36
 130 #define GPIO_37 37
 131 #define GPIO_38 38
 132 #define GPIO_39 39
 133 #define GPIO_40 40
 134 #define GPIO_41 41
 135 #define GPIO_42 42
 136 #define GPIO_43 43
 137 #define GPIO_44 44
 138 #define GPIO_45 45
 139 #define GPIO_46 46
 140 #define GPIO_47 47
 141
 142
 143 #define PERIPHERAL_USAGE 1
 144 #define GPIO_USAGE 0
 145
 146 #ifdef BF533_FAMILY
 147 #define MAX_BLACKFIN_GPIOS 16
 148
 149 #define GPIO_PF0        0
 150 #define GPIO_PF1        1
 151 #define GPIO_PF2        2
 152 #define GPIO_PF3        3
 153 #define GPIO_PF4        4
 154 #define GPIO_PF5        5
 155 #define GPIO_PF6        6
 156 #define GPIO_PF7        7
 157 #define GPIO_PF8        8
 158 #define GPIO_PF9        9
 159 #define GPIO_PF10       10
 160 #define GPIO_PF11       11
 161 #define GPIO_PF12       12
 162 #define GPIO_PF13       13
 163 #define GPIO_PF14       14
 164 #define GPIO_PF15       15
 165
 166 #endif
 167
 168 #if defined(BF527_FAMILY) || defined(BF537_FAMILY)
 169 #define MAX_BLACKFIN_GPIOS 48
 170
 171 #define GPIO_PF0        0
 172 #define GPIO_PF1        1
 173 #define GPIO_PF2        2
 174 #define GPIO_PF3        3
 175 #define GPIO_PF4        4
 176 #define GPIO_PF5        5
 177 #define GPIO_PF6        6
 178 #define GPIO_PF7        7
 179 #define GPIO_PF8        8
 180 #define GPIO_PF9        9
 181 #define GPIO_PF10       10
 182 #define GPIO_PF11       11
 183 #define GPIO_PF12       12
 184 #define GPIO_PF13       13
 185 #define GPIO_PF14       14
 186 #define GPIO_PF15       15
 187 #define GPIO_PG0        16
 188 #define GPIO_PG1        17
 189 #define GPIO_PG2        18
 190 #define GPIO_PG3        19
 191 #define GPIO_PG4        20
 192 #define GPIO_PG5        21
 193 #define GPIO_PG6        22
 194 #define GPIO_PG7        23
 195 #define GPIO_PG8        24
 196 #define GPIO_PG9        25
 197 #define GPIO_PG10       26
 198 #define GPIO_PG11       27
 199 #define GPIO_PG12       28
 200 #define GPIO_PG13       29
 201 #define GPIO_PG14       30
 202 #define GPIO_PG15       31
 203 #define GPIO_PH0        32
 204 #define GPIO_PH1        33
 205 #define GPIO_PH2        34
 206 #define GPIO_PH3        35
 207 #define GPIO_PH4        36
 208 #define GPIO_PH5        37
 209 #define GPIO_PH6        38
 210 #define GPIO_PH7        39
 211 #define GPIO_PH8        40
 212 #define GPIO_PH9        41
 213 #define GPIO_PH10       42
 214 #define GPIO_PH11       43
 215 #define GPIO_PH12       44
 216 #define GPIO_PH13       45
 217 #define GPIO_PH14       46
 218 #define GPIO_PH15       47
 219
 220 #define PORT_F GPIO_PF0
 221 #define PORT_G GPIO_PG0
 222 #define PORT_H GPIO_PH0
 223
 224 #endif
 225
 226 #ifdef BF548_FAMILY
 227 #include <asm-blackfin/mach-bf548/gpio.h>
 228 #endif
 229
 230 #ifdef BF561_FAMILY
 231 #define MAX_BLACKFIN_GPIOS 48
 232
 233 #define GPIO_PF0        0
 234 #define GPIO_PF1        1
 235 #define GPIO_PF2        2
 236 #define GPIO_PF3        3
 237 #define GPIO_PF4        4
 238 #define GPIO_PF5        5
 239 #define GPIO_PF6        6
 240 #define GPIO_PF7        7
 241 #define GPIO_PF8        8
 242 #define GPIO_PF9        9
 243 #define GPIO_PF10       10
 244 #define GPIO_PF11       11
 245 #define GPIO_PF12       12
 246 #define GPIO_PF13       13
 247 #define GPIO_PF14       14
 248 #define GPIO_PF15       15
 249 #define GPIO_PF16       16
 250 #define GPIO_PF17       17
 251 #define GPIO_PF18       18
 252 #define GPIO_PF19       19
 253 #define GPIO_PF20       20
 254 #define GPIO_PF21       21
 255 #define GPIO_PF22       22
 256 #define GPIO_PF23       23
 257 #define GPIO_PF24       24
 258 #define GPIO_PF25       25
 259 #define GPIO_PF26       26
 260 #define GPIO_PF27       27
 261 #define GPIO_PF28       28
 262 #define GPIO_PF29       29
 263 #define GPIO_PF30       30
 264 #define GPIO_PF31       31
 265 #define GPIO_PF32       32
 266 #define GPIO_PF33       33
 267 #define GPIO_PF34       34
 268 #define GPIO_PF35       35
 269 #define GPIO_PF36       36
 270 #define GPIO_PF37       37
 271 #define GPIO_PF38       38
 272 #define GPIO_PF39       39
 273 #define GPIO_PF40       40
 274 #define GPIO_PF41       41
 275 #define GPIO_PF42       42
 276 #define GPIO_PF43       43
 277 #define GPIO_PF44       44
 278 #define GPIO_PF45       45
 279 #define GPIO_PF46       46
 280 #define GPIO_PF47       47
 281
 282 #define PORT_FIO0 GPIO_0
 283 #define PORT_FIO1 GPIO_16
 284 #define PORT_FIO2 GPIO_32
 285 #endif
 286
 287 #ifndef __ASSEMBLY__
 288
 289 /***********************************************************
 290 *
 291 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
 292 *
 293 * INPUTS/OUTPUTS:
 294 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 295 *
 296 *
 297 * DESCRIPTION: These functions abstract direct register access
 298 *              to Blackfin processor General Purpose
 299 *              Ports Regsiters
 300 *
 301 * CAUTION: These functions do not belong to the GPIO Driver API
 302 *************************************************************
 303 * MODIFICATION HISTORY :
 304 **************************************************************/
 305
 306 #ifndef BF548_FAMILY
 307 void set_gpio_dir(unsigned, unsigned short);
 308 void set_gpio_inen(unsigned, unsigned short);
 309 void set_gpio_polar(unsigned, unsigned short);
 310 void set_gpio_edge(unsigned, unsigned short);
 311 void set_gpio_both(unsigned, unsigned short);
 312 void set_gpio_data(unsigned, unsigned short);
 313 void set_gpio_maska(unsigned, unsigned short);
 314 void set_gpio_maskb(unsigned, unsigned short);
 315 void set_gpio_toggle(unsigned);
 316 void set_gpiop_dir(unsigned, unsigned short);
 317 void set_gpiop_inen(unsigned, unsigned short);
 318 void set_gpiop_polar(unsigned, unsigned short);
 319 void set_gpiop_edge(unsigned, unsigned short);
 320 void set_gpiop_both(unsigned, unsigned short);
 321 void set_gpiop_data(unsigned, unsigned short);
 322 void set_gpiop_maska(unsigned, unsigned short);
 323 void set_gpiop_maskb(unsigned, unsigned short);
 324 unsigned short get_gpio_dir(unsigned);
 325 unsigned short get_gpio_inen(unsigned);
 326 unsigned short get_gpio_polar(unsigned);
 327 unsigned short get_gpio_edge(unsigned);
 328 unsigned short get_gpio_both(unsigned);
 329 unsigned short get_gpio_maska(unsigned);
 330 unsigned short get_gpio_maskb(unsigned);
 331 unsigned short get_gpio_data(unsigned);
 332 unsigned short get_gpiop_dir(unsigned);
 333 unsigned short get_gpiop_inen(unsigned);
 334 unsigned short get_gpiop_polar(unsigned);
 335 unsigned short get_gpiop_edge(unsigned);
 336 unsigned short get_gpiop_both(unsigned);
 337 unsigned short get_gpiop_maska(unsigned);
 338 unsigned short get_gpiop_maskb(unsigned);
 339 unsigned short get_gpiop_data(unsigned);
 340
 341 struct gpio_port_t {
 342         unsigned short data;
 343         unsigned short dummy1;
 344         unsigned short data_clear;
 345         unsigned short dummy2;
 346         unsigned short data_set;
 347         unsigned short dummy3;
 348         unsigned short toggle;
 349         unsigned short dummy4;
 350         unsigned short maska;
 351         unsigned short dummy5;
 352         unsigned short maska_clear;
 353         unsigned short dummy6;
 354         unsigned short maska_set;
 355         unsigned short dummy7;
 356         unsigned short maska_toggle;
 357         unsigned short dummy8;
 358         unsigned short maskb;
 359         unsigned short dummy9;
 360         unsigned short maskb_clear;
 361         unsigned short dummy10;
 362         unsigned short maskb_set;
 363         unsigned short dummy11;
 364         unsigned short maskb_toggle;
 365         unsigned short dummy12;
 366         unsigned short dir;
 367         unsigned short dummy13;
 368         unsigned short polar;
 369         unsigned short dummy14;
 370         unsigned short edge;
 371         unsigned short dummy15;
 372         unsigned short both;
 373         unsigned short dummy16;
 374         unsigned short inen;
 375 };
 376 #endif
 377
 378 #ifdef CONFIG_PM
 379 #define PM_WAKE_RISING  0x1
 380 #define PM_WAKE_FALLING 0x2
 381 #define PM_WAKE_HIGH    0x4
 382 #define PM_WAKE_LOW     0x8
 383 #define PM_WAKE_BOTH_EDGES      (PM_WAKE_RISING | PM_WAKE_FALLING)
 384
 385 int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
 386 void gpio_pm_wakeup_free(unsigned gpio);
 387 unsigned int gpio_pm_setup(void);
 388 void gpio_pm_restore(void);
 389
 390 struct gpio_port_s {
 391         unsigned short data;
 392         unsigned short data_clear;
 393         unsigned short data_set;
 394         unsigned short toggle;
 395         unsigned short maska;
 396         unsigned short maska_clear;
 397         unsigned short maska_set;
 398         unsigned short maska_toggle;
 399         unsigned short maskb;
 400         unsigned short maskb_clear;
 401         unsigned short maskb_set;
 402         unsigned short maskb_toggle;
 403         unsigned short dir;
 404         unsigned short polar;
 405         unsigned short edge;
 406         unsigned short both;
 407         unsigned short inen;
 408
 409         unsigned short fer;
 410         unsigned short reserved;
 411 };
 412 #endif /*CONFIG_PM*/
 413
 414 /***********************************************************
 415 *
 416 * FUNCTIONS: Blackfin GPIO Driver
 417 *
 418 * INPUTS/OUTPUTS:
 419 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 420 *
 421 *
 422 * DESCRIPTION: Blackfin GPIO Driver API
 423 *
 424 * CAUTION:
 425 *************************************************************
 426 * MODIFICATION HISTORY :
 427 **************************************************************/
 428
 429 int gpio_request(unsigned, const char *);
 430 void gpio_free(unsigned);
 431
 432 void gpio_set_value(unsigned gpio, int arg);
 433 int gpio_get_value(unsigned gpio);
 434
 435 #ifndef BF548_FAMILY
 436 #define gpio_get_value(gpio)            get_gpio_data(gpio)
 437 #define gpio_set_value(gpio, value)     set_gpio_data(gpio, value)
 438 #endif
 439
 440 int gpio_direction_input(unsigned gpio);
 441 int gpio_direction_output(unsigned gpio, int value);
 442
 443 #include <asm-generic/gpio.h>           /* cansleep wrappers */
 444 #include <asm/irq.h>
 445
 446 static inline int gpio_to_irq(unsigned gpio)
 447 {
 448         return (gpio + GPIO_IRQ_BASE);
 449 }
 450
 451 static inline int irq_to_gpio(unsigned irq)
 452 {
 453         return (irq - GPIO_IRQ_BASE);
 454 }
 455
 456 #endif /* __ASSEMBLY__ */
 457
 458 #endif /* __ARCH_BLACKFIN_GPIO_H__ */