Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 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: |
Michael Hennerich | a2c8cfe | 2008-01-22 17:20:10 +0800 | [diff] [blame] | 10 | * Copyright 2004-2008 Analog Devices Inc. |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 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 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 30 | #ifndef __ARCH_BLACKFIN_GPIO_H__ |
| 31 | #define __ARCH_BLACKFIN_GPIO_H__ |
| 32 | |
Michael Hennerich | a4f0b32c | 2008-11-18 17:48:22 +0800 | [diff] [blame] | 33 | #define gpio_bank(x) ((x) >> 4) |
| 34 | #define gpio_bit(x) (1<<((x) & 0xF)) |
| 35 | #define gpio_sub_n(x) ((x) & 0xF) |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 36 | |
Bryan Wu | 2e8ca59 | 2008-11-18 17:48:22 +0800 | [diff] [blame] | 37 | #define GPIO_BANKSIZE 16 |
| 38 | #define GPIO_BANK_NUM DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE) |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 39 | |
Michael Hennerich | 983e101 | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 40 | #include <mach/gpio.h> |
| 41 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 42 | #define GPIO_0 0 |
| 43 | #define GPIO_1 1 |
| 44 | #define GPIO_2 2 |
| 45 | #define GPIO_3 3 |
| 46 | #define GPIO_4 4 |
| 47 | #define GPIO_5 5 |
| 48 | #define GPIO_6 6 |
| 49 | #define GPIO_7 7 |
| 50 | #define GPIO_8 8 |
| 51 | #define GPIO_9 9 |
| 52 | #define GPIO_10 10 |
| 53 | #define GPIO_11 11 |
| 54 | #define GPIO_12 12 |
| 55 | #define GPIO_13 13 |
| 56 | #define GPIO_14 14 |
| 57 | #define GPIO_15 15 |
| 58 | #define GPIO_16 16 |
| 59 | #define GPIO_17 17 |
| 60 | #define GPIO_18 18 |
| 61 | #define GPIO_19 19 |
| 62 | #define GPIO_20 20 |
| 63 | #define GPIO_21 21 |
| 64 | #define GPIO_22 22 |
| 65 | #define GPIO_23 23 |
| 66 | #define GPIO_24 24 |
| 67 | #define GPIO_25 25 |
| 68 | #define GPIO_26 26 |
| 69 | #define GPIO_27 27 |
| 70 | #define GPIO_28 28 |
| 71 | #define GPIO_29 29 |
| 72 | #define GPIO_30 30 |
| 73 | #define GPIO_31 31 |
| 74 | #define GPIO_32 32 |
| 75 | #define GPIO_33 33 |
| 76 | #define GPIO_34 34 |
| 77 | #define GPIO_35 35 |
| 78 | #define GPIO_36 36 |
| 79 | #define GPIO_37 37 |
| 80 | #define GPIO_38 38 |
| 81 | #define GPIO_39 39 |
| 82 | #define GPIO_40 40 |
| 83 | #define GPIO_41 41 |
| 84 | #define GPIO_42 42 |
| 85 | #define GPIO_43 43 |
| 86 | #define GPIO_44 44 |
| 87 | #define GPIO_45 45 |
| 88 | #define GPIO_46 46 |
| 89 | #define GPIO_47 47 |
| 90 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 91 | #define PERIPHERAL_USAGE 1 |
| 92 | #define GPIO_USAGE 0 |
| 93 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 94 | #ifndef __ASSEMBLY__ |
| 95 | |
| 96 | /*********************************************************** |
| 97 | * |
| 98 | * FUNCTIONS: Blackfin General Purpose Ports Access Functions |
| 99 | * |
| 100 | * INPUTS/OUTPUTS: |
| 101 | * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS |
| 102 | * |
| 103 | * |
| 104 | * DESCRIPTION: These functions abstract direct register access |
| 105 | * to Blackfin processor General Purpose |
| 106 | * Ports Regsiters |
| 107 | * |
| 108 | * CAUTION: These functions do not belong to the GPIO Driver API |
| 109 | ************************************************************* |
| 110 | * MODIFICATION HISTORY : |
| 111 | **************************************************************/ |
| 112 | |
Mike Frysinger | 269647d | 2009-03-28 20:32:57 +0800 | [diff] [blame] | 113 | #ifndef CONFIG_BF54x |
Michael Hennerich | a2c8cfe | 2008-01-22 17:20:10 +0800 | [diff] [blame] | 114 | void set_gpio_dir(unsigned, unsigned short); |
| 115 | void set_gpio_inen(unsigned, unsigned short); |
| 116 | void set_gpio_polar(unsigned, unsigned short); |
| 117 | void set_gpio_edge(unsigned, unsigned short); |
| 118 | void set_gpio_both(unsigned, unsigned short); |
| 119 | void set_gpio_data(unsigned, unsigned short); |
| 120 | void set_gpio_maska(unsigned, unsigned short); |
| 121 | void set_gpio_maskb(unsigned, unsigned short); |
| 122 | void set_gpio_toggle(unsigned); |
| 123 | void set_gpiop_dir(unsigned, unsigned short); |
| 124 | void set_gpiop_inen(unsigned, unsigned short); |
| 125 | void set_gpiop_polar(unsigned, unsigned short); |
| 126 | void set_gpiop_edge(unsigned, unsigned short); |
| 127 | void set_gpiop_both(unsigned, unsigned short); |
| 128 | void set_gpiop_data(unsigned, unsigned short); |
| 129 | void set_gpiop_maska(unsigned, unsigned short); |
| 130 | void set_gpiop_maskb(unsigned, unsigned short); |
| 131 | unsigned short get_gpio_dir(unsigned); |
| 132 | unsigned short get_gpio_inen(unsigned); |
| 133 | unsigned short get_gpio_polar(unsigned); |
| 134 | unsigned short get_gpio_edge(unsigned); |
| 135 | unsigned short get_gpio_both(unsigned); |
| 136 | unsigned short get_gpio_maska(unsigned); |
| 137 | unsigned short get_gpio_maskb(unsigned); |
| 138 | unsigned short get_gpio_data(unsigned); |
| 139 | unsigned short get_gpiop_dir(unsigned); |
| 140 | unsigned short get_gpiop_inen(unsigned); |
| 141 | unsigned short get_gpiop_polar(unsigned); |
| 142 | unsigned short get_gpiop_edge(unsigned); |
| 143 | unsigned short get_gpiop_both(unsigned); |
| 144 | unsigned short get_gpiop_maska(unsigned); |
| 145 | unsigned short get_gpiop_maskb(unsigned); |
| 146 | unsigned short get_gpiop_data(unsigned); |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 147 | |
| 148 | struct gpio_port_t { |
| 149 | unsigned short data; |
| 150 | unsigned short dummy1; |
| 151 | unsigned short data_clear; |
| 152 | unsigned short dummy2; |
| 153 | unsigned short data_set; |
| 154 | unsigned short dummy3; |
| 155 | unsigned short toggle; |
| 156 | unsigned short dummy4; |
| 157 | unsigned short maska; |
| 158 | unsigned short dummy5; |
| 159 | unsigned short maska_clear; |
| 160 | unsigned short dummy6; |
| 161 | unsigned short maska_set; |
| 162 | unsigned short dummy7; |
| 163 | unsigned short maska_toggle; |
| 164 | unsigned short dummy8; |
| 165 | unsigned short maskb; |
| 166 | unsigned short dummy9; |
| 167 | unsigned short maskb_clear; |
| 168 | unsigned short dummy10; |
| 169 | unsigned short maskb_set; |
| 170 | unsigned short dummy11; |
| 171 | unsigned short maskb_toggle; |
| 172 | unsigned short dummy12; |
| 173 | unsigned short dir; |
| 174 | unsigned short dummy13; |
| 175 | unsigned short polar; |
| 176 | unsigned short dummy14; |
| 177 | unsigned short edge; |
| 178 | unsigned short dummy15; |
| 179 | unsigned short both; |
| 180 | unsigned short dummy16; |
| 181 | unsigned short inen; |
| 182 | }; |
Roy Huang | 24a07a1 | 2007-07-12 22:41:45 +0800 | [diff] [blame] | 183 | #endif |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 184 | |
| 185 | #ifdef CONFIG_PM |
Michael Hennerich | 1efc80b | 2008-07-19 16:57:32 +0800 | [diff] [blame] | 186 | |
| 187 | unsigned int bfin_pm_standby_setup(void); |
| 188 | void bfin_pm_standby_restore(void); |
| 189 | |
| 190 | void bfin_gpio_pm_hibernate_restore(void); |
| 191 | void bfin_gpio_pm_hibernate_suspend(void); |
Michael Hennerich | cfefe3c | 2008-02-09 04:12:37 +0800 | [diff] [blame] | 192 | |
| 193 | #ifndef CONFIG_BF54x |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 194 | #define PM_WAKE_RISING 0x1 |
| 195 | #define PM_WAKE_FALLING 0x2 |
| 196 | #define PM_WAKE_HIGH 0x4 |
| 197 | #define PM_WAKE_LOW 0x8 |
| 198 | #define PM_WAKE_BOTH_EDGES (PM_WAKE_RISING | PM_WAKE_FALLING) |
Michael Hennerich | cfefe3c | 2008-02-09 04:12:37 +0800 | [diff] [blame] | 199 | #define PM_WAKE_IGNORE 0xF0 |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 200 | |
Michael Hennerich | a2c8cfe | 2008-01-22 17:20:10 +0800 | [diff] [blame] | 201 | int gpio_pm_wakeup_request(unsigned gpio, unsigned char type); |
| 202 | void gpio_pm_wakeup_free(unsigned gpio); |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 203 | |
| 204 | struct gpio_port_s { |
| 205 | unsigned short data; |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 206 | unsigned short maska; |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 207 | unsigned short maskb; |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 208 | unsigned short dir; |
| 209 | unsigned short polar; |
| 210 | unsigned short edge; |
| 211 | unsigned short both; |
| 212 | unsigned short inen; |
| 213 | |
| 214 | unsigned short fer; |
Michael Hennerich | 581d62a | 2007-06-14 13:30:23 +0800 | [diff] [blame] | 215 | unsigned short reserved; |
Michael Hennerich | 1efc80b | 2008-07-19 16:57:32 +0800 | [diff] [blame] | 216 | unsigned short mux; |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 217 | }; |
Michael Hennerich | cfefe3c | 2008-02-09 04:12:37 +0800 | [diff] [blame] | 218 | #endif /*CONFIG_BF54x*/ |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 219 | #endif /*CONFIG_PM*/ |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 220 | /*********************************************************** |
| 221 | * |
| 222 | * FUNCTIONS: Blackfin GPIO Driver |
| 223 | * |
| 224 | * INPUTS/OUTPUTS: |
| 225 | * gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS |
| 226 | * |
| 227 | * |
| 228 | * DESCRIPTION: Blackfin GPIO Driver API |
| 229 | * |
| 230 | * CAUTION: |
| 231 | ************************************************************* |
| 232 | * MODIFICATION HISTORY : |
| 233 | **************************************************************/ |
| 234 | |
Michael Hennerich | a4f0b32c | 2008-11-18 17:48:22 +0800 | [diff] [blame] | 235 | int bfin_gpio_request(unsigned gpio, const char *label); |
| 236 | void bfin_gpio_free(unsigned gpio); |
Graf Yang | 9570ff4 | 2009-01-07 23:14:38 +0800 | [diff] [blame] | 237 | int bfin_gpio_irq_request(unsigned gpio, const char *label); |
| 238 | void bfin_gpio_irq_free(unsigned gpio); |
Michael Hennerich | a4f0b32c | 2008-11-18 17:48:22 +0800 | [diff] [blame] | 239 | int bfin_gpio_direction_input(unsigned gpio); |
| 240 | int bfin_gpio_direction_output(unsigned gpio, int value); |
| 241 | int bfin_gpio_get_value(unsigned gpio); |
| 242 | void bfin_gpio_set_value(unsigned gpio, int value); |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 243 | |
Michael Hennerich | a4f0b32c | 2008-11-18 17:48:22 +0800 | [diff] [blame] | 244 | #ifdef CONFIG_GPIOLIB |
| 245 | #include <asm-generic/gpio.h> /* cansleep wrappers */ |
| 246 | |
| 247 | static inline int gpio_get_value(unsigned int gpio) |
| 248 | { |
| 249 | if (gpio < MAX_BLACKFIN_GPIOS) |
| 250 | return bfin_gpio_get_value(gpio); |
| 251 | else |
| 252 | return __gpio_get_value(gpio); |
| 253 | } |
| 254 | |
| 255 | static inline void gpio_set_value(unsigned int gpio, int value) |
| 256 | { |
| 257 | if (gpio < MAX_BLACKFIN_GPIOS) |
| 258 | bfin_gpio_set_value(gpio, value); |
| 259 | else |
| 260 | __gpio_set_value(gpio, value); |
| 261 | } |
| 262 | |
| 263 | static inline int gpio_cansleep(unsigned int gpio) |
| 264 | { |
| 265 | return __gpio_cansleep(gpio); |
| 266 | } |
| 267 | |
| 268 | #else /* !CONFIG_GPIOLIB */ |
| 269 | |
| 270 | static inline int gpio_request(unsigned gpio, const char *label) |
| 271 | { |
| 272 | return bfin_gpio_request(gpio, label); |
| 273 | } |
| 274 | |
| 275 | static inline void gpio_free(unsigned gpio) |
| 276 | { |
| 277 | return bfin_gpio_free(gpio); |
| 278 | } |
| 279 | |
| 280 | static inline int gpio_direction_input(unsigned gpio) |
| 281 | { |
| 282 | return bfin_gpio_direction_input(gpio); |
| 283 | } |
| 284 | |
| 285 | static inline int gpio_direction_output(unsigned gpio, int value) |
| 286 | { |
| 287 | return bfin_gpio_direction_output(gpio, value); |
| 288 | } |
| 289 | |
| 290 | static inline int gpio_get_value(unsigned gpio) |
| 291 | { |
| 292 | return bfin_gpio_get_value(gpio); |
| 293 | } |
| 294 | |
| 295 | static inline void gpio_set_value(unsigned gpio, int value) |
| 296 | { |
| 297 | return bfin_gpio_set_value(gpio, value); |
| 298 | } |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 299 | |
Michael Hennerich | 301af29 | 2007-07-24 15:35:53 +0800 | [diff] [blame] | 300 | #include <asm-generic/gpio.h> /* cansleep wrappers */ |
Michael Hennerich | a4f0b32c | 2008-11-18 17:48:22 +0800 | [diff] [blame] | 301 | #endif /* !CONFIG_GPIOLIB */ |
Michael Hennerich | 301af29 | 2007-07-24 15:35:53 +0800 | [diff] [blame] | 302 | #include <asm/irq.h> |
| 303 | |
| 304 | static inline int gpio_to_irq(unsigned gpio) |
| 305 | { |
Michael Hennerich | e1312bf | 2009-03-28 21:18:45 +0800 | [diff] [blame] | 306 | if (likely(gpio < MAX_BLACKFIN_GPIOS)) |
| 307 | return gpio + GPIO_IRQ_BASE; |
| 308 | |
| 309 | return -EINVAL; |
Michael Hennerich | 301af29 | 2007-07-24 15:35:53 +0800 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | static inline int irq_to_gpio(unsigned irq) |
| 313 | { |
| 314 | return (irq - GPIO_IRQ_BASE); |
| 315 | } |
| 316 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 317 | #endif /* __ASSEMBLY__ */ |
| 318 | |
| 319 | #endif /* __ARCH_BLACKFIN_GPIO_H__ */ |