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 2004-2006 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 *
  33 *  GPIO_0       PF0         PF0        PF0
  34 *  GPIO_1       PF1         PF1        PF1
  35 *  GPIO_2       PF2         PF2        PF2
  36 *  GPIO_3       PF3         PF3        PF3
  37 *  GPIO_4       PF4         PF4        PF4
  38 *  GPIO_5       PF5         PF5        PF5
  39 *  GPIO_6       PF6         PF6        PF6
  40 *  GPIO_7       PF7         PF7        PF7
  41 *  GPIO_8       PF8         PF8        PF8
  42 *  GPIO_9       PF9         PF9        PF9
  43 *  GPIO_10      PF10        PF10       PF10
  44 *  GPIO_11      PF11        PF11       PF11
  45 *  GPIO_12      PF12        PF12       PF12
  46 *  GPIO_13      PF13        PF13       PF13
  47 *  GPIO_14      PF14        PF14       PF14
  48 *  GPIO_15      PF15        PF15       PF15
  49 *  GPIO_16      PG0         PF16
  50 *  GPIO_17      PG1         PF17
  51 *  GPIO_18      PG2         PF18
  52 *  GPIO_19      PG3         PF19
  53 *  GPIO_20      PG4         PF20
  54 *  GPIO_21      PG5         PF21
  55 *  GPIO_22      PG6         PF22
  56 *  GPIO_23      PG7         PF23
  57 *  GPIO_24      PG8         PF24
  58 *  GPIO_25      PG9         PF25
  59 *  GPIO_26      PG10        PF26
  60 *  GPIO_27      PG11        PF27
  61 *  GPIO_28      PG12        PF28
  62 *  GPIO_29      PG13        PF29
  63 *  GPIO_30      PG14        PF30
  64 *  GPIO_31      PG15        PF31
  65 *  GPIO_32      PH0         PF32
  66 *  GPIO_33      PH1         PF33
  67 *  GPIO_34      PH2         PF34
  68 *  GPIO_35      PH3         PF35
  69 *  GPIO_36      PH4         PF36
  70 *  GPIO_37      PH5         PF37
  71 *  GPIO_38      PH6         PF38
  72 *  GPIO_39      PH7         PF39
  73 *  GPIO_40      PH8         PF40
  74 *  GPIO_41      PH9         PF41
  75 *  GPIO_42      PH10        PF42
  76 *  GPIO_43      PH11        PF43
  77 *  GPIO_44      PH12        PF44
  78 *  GPIO_45      PH13        PF45
  79 *  GPIO_46      PH14        PF46
  80 *  GPIO_47      PH15        PF47
  81 */
  82
  83 #ifndef __ARCH_BLACKFIN_GPIO_H__
  84 #define __ARCH_BLACKFIN_GPIO_H__
  85
  86 #define gpio_bank(x) ((x) >> 4)
  87 #define gpio_bit(x)  (1<<((x) & 0xF))
  88 #define gpio_sub_n(x) ((x) & 0xF)
  89
  90 #define GPIO_BANKSIZE 16
  91
  92 #define GPIO_0  0
  93 #define GPIO_1  1
  94 #define GPIO_2  2
  95 #define GPIO_3  3
  96 #define GPIO_4  4
  97 #define GPIO_5  5
  98 #define GPIO_6  6
  99 #define GPIO_7  7
 100 #define GPIO_8  8
 101 #define GPIO_9  9
 102 #define GPIO_10 10
 103 #define GPIO_11 11
 104 #define GPIO_12 12
 105 #define GPIO_13 13
 106 #define GPIO_14 14
 107 #define GPIO_15 15
 108 #define GPIO_16 16
 109 #define GPIO_17 17
 110 #define GPIO_18 18
 111 #define GPIO_19 19
 112 #define GPIO_20 20
 113 #define GPIO_21 21
 114 #define GPIO_22 22
 115 #define GPIO_23 23
 116 #define GPIO_24 24
 117 #define GPIO_25 25
 118 #define GPIO_26 26
 119 #define GPIO_27 27
 120 #define GPIO_28 28
 121 #define GPIO_29 29
 122 #define GPIO_30 30
 123 #define GPIO_31 31
 124 #define GPIO_32 32
 125 #define GPIO_33 33
 126 #define GPIO_34 34
 127 #define GPIO_35 35
 128 #define GPIO_36 36
 129 #define GPIO_37 37
 130 #define GPIO_38 38
 131 #define GPIO_39 39
 132 #define GPIO_40 40
 133 #define GPIO_41 41
 134 #define GPIO_42 42
 135 #define GPIO_43 43
 136 #define GPIO_44 44
 137 #define GPIO_45 45
 138 #define GPIO_46 46
 139 #define GPIO_47 47
 140
 141
 142 #define PERIPHERAL_USAGE 1
 143 #define GPIO_USAGE 0
 144
 145 #ifdef BF533_FAMILY
 146 #define MAX_BLACKFIN_GPIOS 16
 147 #endif
 148
 149 #ifdef BF537_FAMILY
 150 #define MAX_BLACKFIN_GPIOS 48
 151
 152 #define GPIO_PF0        0
 153 #define GPIO_PF1        1
 154 #define GPIO_PF2        2
 155 #define GPIO_PF3        3
 156 #define GPIO_PF4        4
 157 #define GPIO_PF5        5
 158 #define GPIO_PF6        6
 159 #define GPIO_PF7        7
 160 #define GPIO_PF8        8
 161 #define GPIO_PF9        9
 162 #define GPIO_PF10       10
 163 #define GPIO_PF11       11
 164 #define GPIO_PF12       12
 165 #define GPIO_PF13       13
 166 #define GPIO_PF14       14
 167 #define GPIO_PF15       15
 168 #define GPIO_PG0        16
 169 #define GPIO_PG1        17
 170 #define GPIO_PG2        18
 171 #define GPIO_PG3        19
 172 #define GPIO_PG4        20
 173 #define GPIO_PG5        21
 174 #define GPIO_PG6        22
 175 #define GPIO_PG7        23
 176 #define GPIO_PG8        24
 177 #define GPIO_PG9        25
 178 #define GPIO_PG10       26
 179 #define GPIO_PG11       27
 180 #define GPIO_PG12       28
 181 #define GPIO_PG13       29
 182 #define GPIO_PG14       30
 183 #define GPIO_PG15       31
 184 #define GPIO_PH0        32
 185 #define GPIO_PH1        33
 186 #define GPIO_PH2        34
 187 #define GPIO_PH3        35
 188 #define GPIO_PH4        36
 189 #define GPIO_PH5        37
 190 #define GPIO_PH6        38
 191 #define GPIO_PH7        39
 192 #define GPIO_PH8        40
 193 #define GPIO_PH9        41
 194 #define GPIO_PH10       42
 195 #define GPIO_PH11       43
 196 #define GPIO_PH12       44
 197 #define GPIO_PH13       45
 198 #define GPIO_PH14       46
 199 #define GPIO_PH15       47
 200
 201 #define PORT_F GPIO_PF0
 202 #define PORT_G GPIO_PG0
 203 #define PORT_H GPIO_PH0
 204
 205 #endif
 206
 207 #ifdef BF561_FAMILY
 208 #define MAX_BLACKFIN_GPIOS 48
 209 #define PORT_FIO0 GPIO_0
 210 #define PORT_FIO1 GPIO_16
 211 #define PORT_FIO2 GPIO_32
 212 #endif
 213
 214 #ifndef __ASSEMBLY__
 215
 216 /***********************************************************
 217 *
 218 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
 219 *
 220 * INPUTS/OUTPUTS:
 221 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 222 *
 223 *
 224 * DESCRIPTION: These functions abstract direct register access
 225 *              to Blackfin processor General Purpose
 226 *              Ports Regsiters
 227 *
 228 * CAUTION: These functions do not belong to the GPIO Driver API
 229 *************************************************************
 230 * MODIFICATION HISTORY :
 231 **************************************************************/
 232
 233 void set_gpio_dir(unsigned short, unsigned short);
 234 void set_gpio_inen(unsigned short, unsigned short);
 235 void set_gpio_polar(unsigned short, unsigned short);
 236 void set_gpio_edge(unsigned short, unsigned short);
 237 void set_gpio_both(unsigned short, unsigned short);
 238 void set_gpio_data(unsigned short, unsigned short);
 239 void set_gpio_maska(unsigned short, unsigned short);
 240 void set_gpio_maskb(unsigned short, unsigned short);
 241 void set_gpio_toggle(unsigned short);
 242 void set_gpiop_dir(unsigned short, unsigned short);
 243 void set_gpiop_inen(unsigned short, unsigned short);
 244 void set_gpiop_polar(unsigned short, unsigned short);
 245 void set_gpiop_edge(unsigned short, unsigned short);
 246 void set_gpiop_both(unsigned short, unsigned short);
 247 void set_gpiop_data(unsigned short, unsigned short);
 248 void set_gpiop_maska(unsigned short, unsigned short);
 249 void set_gpiop_maskb(unsigned short, unsigned short);
 250 unsigned short get_gpio_dir(unsigned short);
 251 unsigned short get_gpio_inen(unsigned short);
 252 unsigned short get_gpio_polar(unsigned short);
 253 unsigned short get_gpio_edge(unsigned short);
 254 unsigned short get_gpio_both(unsigned short);
 255 unsigned short get_gpio_maska(unsigned short);
 256 unsigned short get_gpio_maskb(unsigned short);
 257 unsigned short get_gpio_data(unsigned short);
 258 unsigned short get_gpiop_dir(unsigned short);
 259 unsigned short get_gpiop_inen(unsigned short);
 260 unsigned short get_gpiop_polar(unsigned short);
 261 unsigned short get_gpiop_edge(unsigned short);
 262 unsigned short get_gpiop_both(unsigned short);
 263 unsigned short get_gpiop_maska(unsigned short);
 264 unsigned short get_gpiop_maskb(unsigned short);
 265 unsigned short get_gpiop_data(unsigned short);
 266
 267 struct gpio_port_t {
 268         unsigned short data;
 269         unsigned short dummy1;
 270         unsigned short data_clear;
 271         unsigned short dummy2;
 272         unsigned short data_set;
 273         unsigned short dummy3;
 274         unsigned short toggle;
 275         unsigned short dummy4;
 276         unsigned short maska;
 277         unsigned short dummy5;
 278         unsigned short maska_clear;
 279         unsigned short dummy6;
 280         unsigned short maska_set;
 281         unsigned short dummy7;
 282         unsigned short maska_toggle;
 283         unsigned short dummy8;
 284         unsigned short maskb;
 285         unsigned short dummy9;
 286         unsigned short maskb_clear;
 287         unsigned short dummy10;
 288         unsigned short maskb_set;
 289         unsigned short dummy11;
 290         unsigned short maskb_toggle;
 291         unsigned short dummy12;
 292         unsigned short dir;
 293         unsigned short dummy13;
 294         unsigned short polar;
 295         unsigned short dummy14;
 296         unsigned short edge;
 297         unsigned short dummy15;
 298         unsigned short both;
 299         unsigned short dummy16;
 300         unsigned short inen;
 301 };
 302
 303 #ifdef CONFIG_PM
 304 #define PM_WAKE_RISING  0x1
 305 #define PM_WAKE_FALLING 0x2
 306 #define PM_WAKE_HIGH    0x4
 307 #define PM_WAKE_LOW     0x8
 308 #define PM_WAKE_BOTH_EDGES      (PM_WAKE_RISING | PM_WAKE_FALLING)
 309
 310 int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type);
 311 void gpio_pm_wakeup_free(unsigned short gpio);
 312 unsigned int gpio_pm_setup(void);
 313 void gpio_pm_restore(void);
 314
 315 struct gpio_port_s {
 316         unsigned short data;
 317         unsigned short data_clear;
 318         unsigned short data_set;
 319         unsigned short toggle;
 320         unsigned short maska;
 321         unsigned short maska_clear;
 322         unsigned short maska_set;
 323         unsigned short maska_toggle;
 324         unsigned short maskb;
 325         unsigned short maskb_clear;
 326         unsigned short maskb_set;
 327         unsigned short maskb_toggle;
 328         unsigned short dir;
 329         unsigned short polar;
 330         unsigned short edge;
 331         unsigned short both;
 332         unsigned short inen;
 333
 334         unsigned short fer;
 335 };
 336 #endif /*CONFIG_PM*/
 337
 338 /***********************************************************
 339 *
 340 * FUNCTIONS: Blackfin GPIO Driver
 341 *
 342 * INPUTS/OUTPUTS:
 343 * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
 344 *
 345 *
 346 * DESCRIPTION: Blackfin GPIO Driver API
 347 *
 348 * CAUTION:
 349 *************************************************************
 350 * MODIFICATION HISTORY :
 351 **************************************************************/
 352
 353 int gpio_request(unsigned short, const char *);
 354 void gpio_free(unsigned short);
 355
 356 void gpio_set_value(unsigned short gpio, unsigned short arg);
 357 unsigned short gpio_get_value(unsigned short gpio);
 358
 359 #define gpio_get_value(gpio)            get_gpio_data(gpio)
 360 #define gpio_set_value(gpio, value)     set_gpio_data(gpio, value)
 361
 362 void gpio_direction_input(unsigned short gpio);
 363 void gpio_direction_output(unsigned short gpio);
 364
 365 #endif /* __ASSEMBLY__ */
 366
 367 #endif /* __ARCH_BLACKFIN_GPIO_H__ */