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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 | /* * Copyright 2012-15 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD * */ /* * Pre-requisites: headers required by header of this unit */ #include "dm_services.h" #include "include/gpio_interface.h" #include "include/gpio_service_interface.h" #include "hw_gpio.h" #include "hw_translate.h" #include "hw_factory.h" #include "gpio_service.h" /* * Post-requisites: headers required by this unit */ /* * This unit */ /* * @brief * Public API */ enum gpio_result dal_gpio_open( struct gpio *gpio, enum gpio_mode mode) { return dal_gpio_open_ex(gpio, mode); } enum gpio_result dal_gpio_open_ex( struct gpio *gpio, enum gpio_mode mode) { if (gpio->pin) { ASSERT_CRITICAL(false); return GPIO_RESULT_ALREADY_OPENED; } gpio->mode = mode; return dal_gpio_service_open( gpio->service, gpio->id, gpio->en, mode, &gpio->pin); } enum gpio_result dal_gpio_get_value( const struct gpio *gpio, uint32_t *value) { if (!gpio->pin) { BREAK_TO_DEBUGGER(); return GPIO_RESULT_NULL_HANDLE; } return gpio->pin->funcs->get_value(gpio->pin, value); } enum gpio_result dal_gpio_set_value( const struct gpio *gpio, uint32_t value) { if (!gpio->pin) { BREAK_TO_DEBUGGER(); return GPIO_RESULT_NULL_HANDLE; } return gpio->pin->funcs->set_value(gpio->pin, value); } enum gpio_mode dal_gpio_get_mode( const struct gpio *gpio) { return gpio->mode; } enum gpio_result dal_gpio_change_mode( struct gpio *gpio, enum gpio_mode mode) { if (!gpio->pin) { BREAK_TO_DEBUGGER(); return GPIO_RESULT_NULL_HANDLE; } return gpio->pin->funcs->change_mode(gpio->pin, mode); } enum gpio_id dal_gpio_get_id( const struct gpio *gpio) { return gpio->id; } uint32_t dal_gpio_get_enum( const struct gpio *gpio) { return gpio->en; } enum gpio_result dal_gpio_set_config( struct gpio *gpio, const struct gpio_config_data *config_data) { if (!gpio->pin) { BREAK_TO_DEBUGGER(); return GPIO_RESULT_NULL_HANDLE; } return gpio->pin->funcs->set_config(gpio->pin, config_data); } enum gpio_result dal_gpio_get_pin_info( const struct gpio *gpio, struct gpio_pin_info *pin_info) { return gpio->service->translate.funcs->id_to_offset( gpio->id, gpio->en, pin_info) ? GPIO_RESULT_OK : GPIO_RESULT_INVALID_DATA; } enum sync_source dal_gpio_get_sync_source( const struct gpio *gpio) { switch (gpio->id) { case GPIO_ID_GENERIC: switch (gpio->en) { case GPIO_GENERIC_A: return SYNC_SOURCE_IO_GENERIC_A; case GPIO_GENERIC_B: return SYNC_SOURCE_IO_GENERIC_B; case GPIO_GENERIC_C: return SYNC_SOURCE_IO_GENERIC_C; case GPIO_GENERIC_D: return SYNC_SOURCE_IO_GENERIC_D; case GPIO_GENERIC_E: return SYNC_SOURCE_IO_GENERIC_E; case GPIO_GENERIC_F: return SYNC_SOURCE_IO_GENERIC_F; default: return SYNC_SOURCE_NONE; } break; case GPIO_ID_SYNC: switch (gpio->en) { case GPIO_SYNC_HSYNC_A: return SYNC_SOURCE_IO_HSYNC_A; case GPIO_SYNC_VSYNC_A: return SYNC_SOURCE_IO_VSYNC_A; case GPIO_SYNC_HSYNC_B: return SYNC_SOURCE_IO_HSYNC_B; case GPIO_SYNC_VSYNC_B: return SYNC_SOURCE_IO_VSYNC_B; default: return SYNC_SOURCE_NONE; } break; case GPIO_ID_HPD: switch (gpio->en) { case GPIO_HPD_1: return SYNC_SOURCE_IO_HPD1; case GPIO_HPD_2: return SYNC_SOURCE_IO_HPD2; default: return SYNC_SOURCE_NONE; } break; case GPIO_ID_GSL: switch (gpio->en) { case GPIO_GSL_GENLOCK_CLOCK: return SYNC_SOURCE_GSL_IO_GENLOCK_CLOCK; case GPIO_GSL_GENLOCK_VSYNC: return SYNC_SOURCE_GSL_IO_GENLOCK_VSYNC; case GPIO_GSL_SWAPLOCK_A: return SYNC_SOURCE_GSL_IO_SWAPLOCK_A; case GPIO_GSL_SWAPLOCK_B: return SYNC_SOURCE_GSL_IO_SWAPLOCK_B; default: return SYNC_SOURCE_NONE; } break; default: return SYNC_SOURCE_NONE; } } enum gpio_pin_output_state dal_gpio_get_output_state( const struct gpio *gpio) { return gpio->output_state; } void dal_gpio_close( struct gpio *gpio) { if (!gpio) return; dal_gpio_service_close(gpio->service, &gpio->pin); gpio->mode = GPIO_MODE_UNKNOWN; } /* * @brief * Creation and destruction */ struct gpio *dal_gpio_create( struct gpio_service *service, enum gpio_id id, uint32_t en, enum gpio_pin_output_state output_state) { struct gpio *gpio = kzalloc(sizeof(struct gpio), GFP_KERNEL); if (!gpio) { ASSERT_CRITICAL(false); return NULL; } gpio->service = service; gpio->pin = NULL; gpio->id = id; gpio->en = en; gpio->mode = GPIO_MODE_UNKNOWN; gpio->output_state = output_state; return gpio; } void dal_gpio_destroy( struct gpio **gpio) { if (!gpio || !*gpio) { ASSERT_CRITICAL(false); return; } dal_gpio_close(*gpio); kfree(*gpio); *gpio = NULL; } |