mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_ARM_FM/TARGET_FVP_MPS2/gpio_irq_api.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
186:707f6e361f3e 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Anna Bridge 186:707f6e361f3e 1 /* mbed Microcontroller Library
Anna Bridge 186:707f6e361f3e 2 * Copyright (c) 2006-2018 ARM Limited
Anna Bridge 186:707f6e361f3e 3 *
Anna Bridge 186:707f6e361f3e 4 * Licensed under the Apache License, Version 2.0 (the "License");
Anna Bridge 186:707f6e361f3e 5 * you may not use this file except in compliance with the License.
Anna Bridge 186:707f6e361f3e 6 * You may obtain a copy of the License at
Anna Bridge 186:707f6e361f3e 7 *
Anna Bridge 186:707f6e361f3e 8 * http://www.apache.org/licenses/LICENSE-2.0
Anna Bridge 186:707f6e361f3e 9 *
Anna Bridge 186:707f6e361f3e 10 * Unless required by applicable law or agreed to in writing, software
Anna Bridge 186:707f6e361f3e 11 * distributed under the License is distributed on an "AS IS" BASIS,
Anna Bridge 186:707f6e361f3e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Anna Bridge 186:707f6e361f3e 13 * See the License for the specific language governing permissions and
Anna Bridge 186:707f6e361f3e 14 * limitations under the License.
Anna Bridge 186:707f6e361f3e 15 */
Anna Bridge 186:707f6e361f3e 16 #include <stddef.h>
Anna Bridge 186:707f6e361f3e 17 #include "cmsis.h"
Anna Bridge 186:707f6e361f3e 18 #include "gpio_irq_api.h"
Anna Bridge 186:707f6e361f3e 19 #include "mbed_error.h"
Anna Bridge 186:707f6e361f3e 20
Anna Bridge 186:707f6e361f3e 21 #define CHANNEL_NUM 32
Anna Bridge 186:707f6e361f3e 22 #define CMSDK_GPIO_0 CMSDK_GPIO0
Anna Bridge 186:707f6e361f3e 23 #define CMSDK_GPIO_1 CMSDK_GPIO1
Anna Bridge 186:707f6e361f3e 24 #define PININT_IRQ 0
Anna Bridge 186:707f6e361f3e 25
Anna Bridge 186:707f6e361f3e 26 static uint32_t channel_ids[CHANNEL_NUM] = {0};
Anna Bridge 186:707f6e361f3e 27 static gpio_irq_handler irq_handler;
Anna Bridge 186:707f6e361f3e 28
Anna Bridge 186:707f6e361f3e 29 static inline void handle_interrupt_in(uint32_t channel)
Anna Bridge 186:707f6e361f3e 30 {
Anna Bridge 186:707f6e361f3e 31 uint32_t ch_bit = (1 << channel);
Anna Bridge 186:707f6e361f3e 32 // Return immediately if:
Anna Bridge 186:707f6e361f3e 33 // * The interrupt was already served
Anna Bridge 186:707f6e361f3e 34 // * There is no user handler
Anna Bridge 186:707f6e361f3e 35 // * It is a level interrupt, not an edge interrupt
Anna Bridge 186:707f6e361f3e 36 if (ch_bit < 16) {
Anna Bridge 186:707f6e361f3e 37 if (((CMSDK_GPIO_0->INTSTATUS) == 0) || (channel_ids[channel] == 0) || ((CMSDK_GPIO_0->INTTYPESET) == 0)) {
Anna Bridge 186:707f6e361f3e 38 return;
Anna Bridge 186:707f6e361f3e 39 }
Anna Bridge 186:707f6e361f3e 40
Anna Bridge 186:707f6e361f3e 41 if ((CMSDK_GPIO_0->INTTYPESET & ch_bit) && (CMSDK_GPIO_0->INTPOLSET & ch_bit)) {
Anna Bridge 186:707f6e361f3e 42 irq_handler(channel_ids[channel], IRQ_RISE);
Anna Bridge 186:707f6e361f3e 43 CMSDK_GPIO_0->INTPOLSET = ch_bit;
Anna Bridge 186:707f6e361f3e 44 }
Anna Bridge 186:707f6e361f3e 45 if ((CMSDK_GPIO_0->INTTYPESET & ch_bit) && ~(CMSDK_GPIO_0->INTPOLSET & ch_bit)) {
Anna Bridge 186:707f6e361f3e 46 irq_handler(channel_ids[channel], IRQ_FALL);
Anna Bridge 186:707f6e361f3e 47 }
Anna Bridge 186:707f6e361f3e 48 CMSDK_GPIO_0->INTCLEAR = ch_bit;
Anna Bridge 186:707f6e361f3e 49 }
Anna Bridge 186:707f6e361f3e 50
Anna Bridge 186:707f6e361f3e 51 if (ch_bit >= 16) {
Anna Bridge 186:707f6e361f3e 52 if (((CMSDK_GPIO_1->INTSTATUS) == 0) || (channel_ids[channel] == 0) || ((CMSDK_GPIO_1->INTTYPESET) == 0)) {
Anna Bridge 186:707f6e361f3e 53 return;
Anna Bridge 186:707f6e361f3e 54 }
Anna Bridge 186:707f6e361f3e 55
Anna Bridge 186:707f6e361f3e 56 if ((CMSDK_GPIO_1->INTTYPESET & ch_bit) && (CMSDK_GPIO_1->INTPOLSET & ch_bit)) {
Anna Bridge 186:707f6e361f3e 57 irq_handler(channel_ids[channel], IRQ_RISE);
Anna Bridge 186:707f6e361f3e 58 CMSDK_GPIO_1->INTPOLSET = ch_bit;
Anna Bridge 186:707f6e361f3e 59 }
Anna Bridge 186:707f6e361f3e 60 if ((CMSDK_GPIO_1->INTTYPESET & ch_bit) && ~(CMSDK_GPIO_1->INTPOLSET & ch_bit)) {
Anna Bridge 186:707f6e361f3e 61 irq_handler(channel_ids[channel], IRQ_FALL);
Anna Bridge 186:707f6e361f3e 62 }
Anna Bridge 186:707f6e361f3e 63 CMSDK_GPIO_1->INTCLEAR = ch_bit;
Anna Bridge 186:707f6e361f3e 64 }
Anna Bridge 186:707f6e361f3e 65 }
Anna Bridge 186:707f6e361f3e 66
Anna Bridge 186:707f6e361f3e 67 void gpio0_irq0(void)
Anna Bridge 186:707f6e361f3e 68 {
Anna Bridge 186:707f6e361f3e 69 handle_interrupt_in(0);
Anna Bridge 186:707f6e361f3e 70 }
Anna Bridge 186:707f6e361f3e 71 void gpio0_irq1(void)
Anna Bridge 186:707f6e361f3e 72 {
Anna Bridge 186:707f6e361f3e 73 handle_interrupt_in(1);
Anna Bridge 186:707f6e361f3e 74 }
Anna Bridge 186:707f6e361f3e 75 void gpio0_irq2(void)
Anna Bridge 186:707f6e361f3e 76 {
Anna Bridge 186:707f6e361f3e 77 handle_interrupt_in(2);
Anna Bridge 186:707f6e361f3e 78 }
Anna Bridge 186:707f6e361f3e 79 void gpio0_irq3(void)
Anna Bridge 186:707f6e361f3e 80 {
Anna Bridge 186:707f6e361f3e 81 handle_interrupt_in(3);
Anna Bridge 186:707f6e361f3e 82 }
Anna Bridge 186:707f6e361f3e 83 void gpio0_irq4(void)
Anna Bridge 186:707f6e361f3e 84 {
Anna Bridge 186:707f6e361f3e 85 handle_interrupt_in(4);
Anna Bridge 186:707f6e361f3e 86 }
Anna Bridge 186:707f6e361f3e 87 void gpio0_irq5(void)
Anna Bridge 186:707f6e361f3e 88 {
Anna Bridge 186:707f6e361f3e 89 handle_interrupt_in(5);
Anna Bridge 186:707f6e361f3e 90 }
Anna Bridge 186:707f6e361f3e 91 void gpio0_irq6(void)
Anna Bridge 186:707f6e361f3e 92 {
Anna Bridge 186:707f6e361f3e 93 handle_interrupt_in(6);
Anna Bridge 186:707f6e361f3e 94 }
Anna Bridge 186:707f6e361f3e 95 void gpio0_irq7(void)
Anna Bridge 186:707f6e361f3e 96 {
Anna Bridge 186:707f6e361f3e 97 handle_interrupt_in(7);
Anna Bridge 186:707f6e361f3e 98 }
Anna Bridge 186:707f6e361f3e 99 void gpio0_irq8(void)
Anna Bridge 186:707f6e361f3e 100 {
Anna Bridge 186:707f6e361f3e 101 handle_interrupt_in(8);
Anna Bridge 186:707f6e361f3e 102 }
Anna Bridge 186:707f6e361f3e 103 void gpio0_irq9(void)
Anna Bridge 186:707f6e361f3e 104 {
Anna Bridge 186:707f6e361f3e 105 handle_interrupt_in(9);
Anna Bridge 186:707f6e361f3e 106 }
Anna Bridge 186:707f6e361f3e 107 void gpio0_irq10(void)
Anna Bridge 186:707f6e361f3e 108 {
Anna Bridge 186:707f6e361f3e 109 handle_interrupt_in(10);
Anna Bridge 186:707f6e361f3e 110 }
Anna Bridge 186:707f6e361f3e 111 void gpio0_irq11(void)
Anna Bridge 186:707f6e361f3e 112 {
Anna Bridge 186:707f6e361f3e 113 handle_interrupt_in(11);
Anna Bridge 186:707f6e361f3e 114 }
Anna Bridge 186:707f6e361f3e 115 void gpio0_irq12(void)
Anna Bridge 186:707f6e361f3e 116 {
Anna Bridge 186:707f6e361f3e 117 handle_interrupt_in(12);
Anna Bridge 186:707f6e361f3e 118 }
Anna Bridge 186:707f6e361f3e 119 void gpio0_irq13(void)
Anna Bridge 186:707f6e361f3e 120 {
Anna Bridge 186:707f6e361f3e 121 handle_interrupt_in(13);
Anna Bridge 186:707f6e361f3e 122 }
Anna Bridge 186:707f6e361f3e 123 void gpio0_irq14(void)
Anna Bridge 186:707f6e361f3e 124 {
Anna Bridge 186:707f6e361f3e 125 handle_interrupt_in(14);
Anna Bridge 186:707f6e361f3e 126 }
Anna Bridge 186:707f6e361f3e 127 void gpio0_irq15(void)
Anna Bridge 186:707f6e361f3e 128 {
Anna Bridge 186:707f6e361f3e 129 handle_interrupt_in(15);
Anna Bridge 186:707f6e361f3e 130 }
Anna Bridge 186:707f6e361f3e 131 void gpio1_irq0(void)
Anna Bridge 186:707f6e361f3e 132 {
Anna Bridge 186:707f6e361f3e 133 handle_interrupt_in(16);
Anna Bridge 186:707f6e361f3e 134 }
Anna Bridge 186:707f6e361f3e 135 void gpio1_irq1(void)
Anna Bridge 186:707f6e361f3e 136 {
Anna Bridge 186:707f6e361f3e 137 handle_interrupt_in(17);
Anna Bridge 186:707f6e361f3e 138 }
Anna Bridge 186:707f6e361f3e 139 void gpio1_irq2(void)
Anna Bridge 186:707f6e361f3e 140 {
Anna Bridge 186:707f6e361f3e 141 handle_interrupt_in(18);
Anna Bridge 186:707f6e361f3e 142 }
Anna Bridge 186:707f6e361f3e 143 void gpio1_irq3(void)
Anna Bridge 186:707f6e361f3e 144 {
Anna Bridge 186:707f6e361f3e 145 handle_interrupt_in(19);
Anna Bridge 186:707f6e361f3e 146 }
Anna Bridge 186:707f6e361f3e 147 void gpio1_irq4(void)
Anna Bridge 186:707f6e361f3e 148 {
Anna Bridge 186:707f6e361f3e 149 handle_interrupt_in(20);
Anna Bridge 186:707f6e361f3e 150 }
Anna Bridge 186:707f6e361f3e 151 void gpio1_irq5(void)
Anna Bridge 186:707f6e361f3e 152 {
Anna Bridge 186:707f6e361f3e 153 handle_interrupt_in(21);
Anna Bridge 186:707f6e361f3e 154 }
Anna Bridge 186:707f6e361f3e 155 void gpio1_irq6(void)
Anna Bridge 186:707f6e361f3e 156 {
Anna Bridge 186:707f6e361f3e 157 handle_interrupt_in(22);
Anna Bridge 186:707f6e361f3e 158 }
Anna Bridge 186:707f6e361f3e 159 void gpio1_irq7(void)
Anna Bridge 186:707f6e361f3e 160 {
Anna Bridge 186:707f6e361f3e 161 handle_interrupt_in(23);
Anna Bridge 186:707f6e361f3e 162 }
Anna Bridge 186:707f6e361f3e 163 void gpio1_irq8(void)
Anna Bridge 186:707f6e361f3e 164 {
Anna Bridge 186:707f6e361f3e 165 handle_interrupt_in(24);
Anna Bridge 186:707f6e361f3e 166 }
Anna Bridge 186:707f6e361f3e 167 void gpio1_irq9(void)
Anna Bridge 186:707f6e361f3e 168 {
Anna Bridge 186:707f6e361f3e 169 handle_interrupt_in(25);
Anna Bridge 186:707f6e361f3e 170 }
Anna Bridge 186:707f6e361f3e 171 void gpio1_irq10(void)
Anna Bridge 186:707f6e361f3e 172 {
Anna Bridge 186:707f6e361f3e 173 handle_interrupt_in(26);
Anna Bridge 186:707f6e361f3e 174 }
Anna Bridge 186:707f6e361f3e 175 void gpio1_irq11(void)
Anna Bridge 186:707f6e361f3e 176 {
Anna Bridge 186:707f6e361f3e 177 handle_interrupt_in(27);
Anna Bridge 186:707f6e361f3e 178 }
Anna Bridge 186:707f6e361f3e 179 void gpio1_irq12(void)
Anna Bridge 186:707f6e361f3e 180 {
Anna Bridge 186:707f6e361f3e 181 handle_interrupt_in(28);
Anna Bridge 186:707f6e361f3e 182 }
Anna Bridge 186:707f6e361f3e 183 void gpio1_irq13(void)
Anna Bridge 186:707f6e361f3e 184 {
Anna Bridge 186:707f6e361f3e 185 handle_interrupt_in(29);
Anna Bridge 186:707f6e361f3e 186 }
Anna Bridge 186:707f6e361f3e 187 void gpio1_irq14(void)
Anna Bridge 186:707f6e361f3e 188 {
Anna Bridge 186:707f6e361f3e 189 handle_interrupt_in(30);
Anna Bridge 186:707f6e361f3e 190 }
Anna Bridge 186:707f6e361f3e 191 void gpio1_irq15(void)
Anna Bridge 186:707f6e361f3e 192 {
Anna Bridge 186:707f6e361f3e 193 handle_interrupt_in(31);
Anna Bridge 186:707f6e361f3e 194 }
Anna Bridge 186:707f6e361f3e 195
Anna Bridge 186:707f6e361f3e 196
Anna Bridge 186:707f6e361f3e 197 int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id)
Anna Bridge 186:707f6e361f3e 198 {
Anna Bridge 186:707f6e361f3e 199 if (pin == NC) {
Anna Bridge 186:707f6e361f3e 200 return -1;
Anna Bridge 186:707f6e361f3e 201 } else {
Anna Bridge 186:707f6e361f3e 202
Anna Bridge 186:707f6e361f3e 203 irq_handler = handler;
Anna Bridge 186:707f6e361f3e 204
Anna Bridge 186:707f6e361f3e 205 int found_free_channel = 0;
Anna Bridge 186:707f6e361f3e 206 int i = 0;
Anna Bridge 186:707f6e361f3e 207 for (i = 0; i < CHANNEL_NUM; i++) {
Anna Bridge 186:707f6e361f3e 208 if (channel_ids[i] == 0) {
Anna Bridge 186:707f6e361f3e 209 channel_ids[i] = id;
Anna Bridge 186:707f6e361f3e 210 obj->ch = i;
Anna Bridge 186:707f6e361f3e 211 found_free_channel = 1;
Anna Bridge 186:707f6e361f3e 212 break;
Anna Bridge 186:707f6e361f3e 213 }
Anna Bridge 186:707f6e361f3e 214 }
Anna Bridge 186:707f6e361f3e 215 if (!found_free_channel) {
Anna Bridge 186:707f6e361f3e 216 return -1;
Anna Bridge 186:707f6e361f3e 217 }
Anna Bridge 186:707f6e361f3e 218
Anna Bridge 186:707f6e361f3e 219
Anna Bridge 186:707f6e361f3e 220 /* To select a pin for any of the eight pin interrupts, write the pin number
Anna Bridge 186:707f6e361f3e 221 * as 0 to 23 for pins PIO0_0 to PIO0_23 and 24 to 55.
Anna Bridge 186:707f6e361f3e 222 * @see: mbed_capi/PinNames.h
Anna Bridge 186:707f6e361f3e 223 */
Anna Bridge 186:707f6e361f3e 224 if (pin < 16) {
Anna Bridge 186:707f6e361f3e 225 CMSDK_GPIO_0->INTENSET |= (0x1 << pin);
Anna Bridge 186:707f6e361f3e 226 }
Anna Bridge 186:707f6e361f3e 227
Anna Bridge 186:707f6e361f3e 228 if (pin >= 16) {
Anna Bridge 186:707f6e361f3e 229 CMSDK_GPIO_1->INTENSET |= (0x1 << pin);
Anna Bridge 186:707f6e361f3e 230 }
Anna Bridge 186:707f6e361f3e 231
Anna Bridge 186:707f6e361f3e 232 void (*channels_irq)(void) = NULL;
Anna Bridge 186:707f6e361f3e 233 switch (obj->ch) {
Anna Bridge 186:707f6e361f3e 234 case 0:
Anna Bridge 186:707f6e361f3e 235 channels_irq = &gpio0_irq0;
Anna Bridge 186:707f6e361f3e 236 break;
Anna Bridge 186:707f6e361f3e 237 case 1:
Anna Bridge 186:707f6e361f3e 238 channels_irq = &gpio0_irq1;
Anna Bridge 186:707f6e361f3e 239 break;
Anna Bridge 186:707f6e361f3e 240 case 2:
Anna Bridge 186:707f6e361f3e 241 channels_irq = &gpio0_irq2;
Anna Bridge 186:707f6e361f3e 242 break;
Anna Bridge 186:707f6e361f3e 243 case 3:
Anna Bridge 186:707f6e361f3e 244 channels_irq = &gpio0_irq3;
Anna Bridge 186:707f6e361f3e 245 break;
Anna Bridge 186:707f6e361f3e 246 case 4:
Anna Bridge 186:707f6e361f3e 247 channels_irq = &gpio0_irq4;
Anna Bridge 186:707f6e361f3e 248 break;
Anna Bridge 186:707f6e361f3e 249 case 5:
Anna Bridge 186:707f6e361f3e 250 channels_irq = &gpio0_irq5;
Anna Bridge 186:707f6e361f3e 251 break;
Anna Bridge 186:707f6e361f3e 252 case 6:
Anna Bridge 186:707f6e361f3e 253 channels_irq = &gpio0_irq6;
Anna Bridge 186:707f6e361f3e 254 break;
Anna Bridge 186:707f6e361f3e 255 case 7:
Anna Bridge 186:707f6e361f3e 256 channels_irq = &gpio0_irq7;
Anna Bridge 186:707f6e361f3e 257 break;
Anna Bridge 186:707f6e361f3e 258 case 8:
Anna Bridge 186:707f6e361f3e 259 channels_irq = &gpio0_irq8;
Anna Bridge 186:707f6e361f3e 260 break;
Anna Bridge 186:707f6e361f3e 261 case 9:
Anna Bridge 186:707f6e361f3e 262 channels_irq = &gpio0_irq9;
Anna Bridge 186:707f6e361f3e 263 break;
Anna Bridge 186:707f6e361f3e 264 case 10:
Anna Bridge 186:707f6e361f3e 265 channels_irq = &gpio0_irq10;
Anna Bridge 186:707f6e361f3e 266 break;
Anna Bridge 186:707f6e361f3e 267 case 11:
Anna Bridge 186:707f6e361f3e 268 channels_irq = &gpio0_irq11;
Anna Bridge 186:707f6e361f3e 269 break;
Anna Bridge 186:707f6e361f3e 270 case 12:
Anna Bridge 186:707f6e361f3e 271 channels_irq = &gpio0_irq12;
Anna Bridge 186:707f6e361f3e 272 break;
Anna Bridge 186:707f6e361f3e 273 case 13:
Anna Bridge 186:707f6e361f3e 274 channels_irq = &gpio0_irq13;
Anna Bridge 186:707f6e361f3e 275 break;
Anna Bridge 186:707f6e361f3e 276 case 14:
Anna Bridge 186:707f6e361f3e 277 channels_irq = &gpio0_irq14;
Anna Bridge 186:707f6e361f3e 278 break;
Anna Bridge 186:707f6e361f3e 279 case 15:
Anna Bridge 186:707f6e361f3e 280 channels_irq = &gpio0_irq15;
Anna Bridge 186:707f6e361f3e 281 break;
Anna Bridge 186:707f6e361f3e 282 case 16:
Anna Bridge 186:707f6e361f3e 283 channels_irq = &gpio1_irq0;
Anna Bridge 186:707f6e361f3e 284 break;
Anna Bridge 186:707f6e361f3e 285 case 17:
Anna Bridge 186:707f6e361f3e 286 channels_irq = &gpio1_irq1;
Anna Bridge 186:707f6e361f3e 287 break;
Anna Bridge 186:707f6e361f3e 288 case 18:
Anna Bridge 186:707f6e361f3e 289 channels_irq = &gpio1_irq2;
Anna Bridge 186:707f6e361f3e 290 break;
Anna Bridge 186:707f6e361f3e 291 case 19:
Anna Bridge 186:707f6e361f3e 292 channels_irq = &gpio1_irq3;
Anna Bridge 186:707f6e361f3e 293 break;
Anna Bridge 186:707f6e361f3e 294 case 20:
Anna Bridge 186:707f6e361f3e 295 channels_irq = &gpio1_irq4;
Anna Bridge 186:707f6e361f3e 296 break;
Anna Bridge 186:707f6e361f3e 297 case 21:
Anna Bridge 186:707f6e361f3e 298 channels_irq = &gpio1_irq5;
Anna Bridge 186:707f6e361f3e 299 break;
Anna Bridge 186:707f6e361f3e 300 case 22:
Anna Bridge 186:707f6e361f3e 301 channels_irq = &gpio1_irq6;
Anna Bridge 186:707f6e361f3e 302 break;
Anna Bridge 186:707f6e361f3e 303 case 23:
Anna Bridge 186:707f6e361f3e 304 channels_irq = &gpio1_irq7;
Anna Bridge 186:707f6e361f3e 305 break;
Anna Bridge 186:707f6e361f3e 306 case 24:
Anna Bridge 186:707f6e361f3e 307 channels_irq = &gpio1_irq8;
Anna Bridge 186:707f6e361f3e 308 break;
Anna Bridge 186:707f6e361f3e 309 case 25:
Anna Bridge 186:707f6e361f3e 310 channels_irq = &gpio1_irq9;
Anna Bridge 186:707f6e361f3e 311 break;
Anna Bridge 186:707f6e361f3e 312 case 26:
Anna Bridge 186:707f6e361f3e 313 channels_irq = &gpio1_irq10;
Anna Bridge 186:707f6e361f3e 314 break;
Anna Bridge 186:707f6e361f3e 315 case 27:
Anna Bridge 186:707f6e361f3e 316 channels_irq = &gpio1_irq11;
Anna Bridge 186:707f6e361f3e 317 break;
Anna Bridge 186:707f6e361f3e 318 case 28:
Anna Bridge 186:707f6e361f3e 319 channels_irq = &gpio1_irq12;
Anna Bridge 186:707f6e361f3e 320 break;
Anna Bridge 186:707f6e361f3e 321 case 29:
Anna Bridge 186:707f6e361f3e 322 channels_irq = &gpio1_irq13;
Anna Bridge 186:707f6e361f3e 323 break;
Anna Bridge 186:707f6e361f3e 324 case 30:
Anna Bridge 186:707f6e361f3e 325 channels_irq = &gpio1_irq14;
Anna Bridge 186:707f6e361f3e 326 break;
Anna Bridge 186:707f6e361f3e 327 case 31:
Anna Bridge 186:707f6e361f3e 328 channels_irq = &gpio1_irq15;
Anna Bridge 186:707f6e361f3e 329 break;
Anna Bridge 186:707f6e361f3e 330
Anna Bridge 186:707f6e361f3e 331 }
Anna Bridge 186:707f6e361f3e 332 NVIC_SetVector((IRQn_Type)(PININT_IRQ + obj->ch), (uint32_t)channels_irq);
Anna Bridge 186:707f6e361f3e 333 NVIC_EnableIRQ((IRQn_Type)(PININT_IRQ + obj->ch));
Anna Bridge 186:707f6e361f3e 334
Anna Bridge 186:707f6e361f3e 335 return 0;
Anna Bridge 186:707f6e361f3e 336 }
Anna Bridge 186:707f6e361f3e 337 }
Anna Bridge 186:707f6e361f3e 338
Anna Bridge 186:707f6e361f3e 339 void gpio_irq_free(gpio_irq_t *obj)
Anna Bridge 186:707f6e361f3e 340 {
Anna Bridge 186:707f6e361f3e 341 }
Anna Bridge 186:707f6e361f3e 342
Anna Bridge 186:707f6e361f3e 343 void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable)
Anna Bridge 186:707f6e361f3e 344 {
Anna Bridge 186:707f6e361f3e 345 unsigned int ch_bit = (1 << obj->ch);
Anna Bridge 186:707f6e361f3e 346
Anna Bridge 186:707f6e361f3e 347 // Clear interrupt
Anna Bridge 186:707f6e361f3e 348 if (obj->ch < 16) {
Anna Bridge 186:707f6e361f3e 349 if (!(CMSDK_GPIO_0->INTTYPESET & ch_bit)) {
Anna Bridge 186:707f6e361f3e 350 CMSDK_GPIO_0->INTCLEAR = ch_bit;
Anna Bridge 186:707f6e361f3e 351 }
Anna Bridge 186:707f6e361f3e 352 }
Anna Bridge 186:707f6e361f3e 353 if (obj->ch >= 16) {
Anna Bridge 186:707f6e361f3e 354 if (!(CMSDK_GPIO_1->INTTYPESET & ch_bit)) {
Anna Bridge 186:707f6e361f3e 355 CMSDK_GPIO_1->INTCLEAR = ch_bit;
Anna Bridge 186:707f6e361f3e 356 }
Anna Bridge 186:707f6e361f3e 357 }
Anna Bridge 186:707f6e361f3e 358
Anna Bridge 186:707f6e361f3e 359 // Edge trigger
Anna Bridge 186:707f6e361f3e 360 if (obj->ch < 16) {
Anna Bridge 186:707f6e361f3e 361 CMSDK_GPIO_0->INTTYPESET &= ch_bit;
Anna Bridge 186:707f6e361f3e 362 if (event == IRQ_RISE) {
Anna Bridge 186:707f6e361f3e 363 CMSDK_GPIO_0->INTPOLSET |= ch_bit;
Anna Bridge 186:707f6e361f3e 364 if (enable) {
Anna Bridge 186:707f6e361f3e 365 CMSDK_GPIO_0->INTENSET |= ch_bit;
Anna Bridge 186:707f6e361f3e 366 } else {
Anna Bridge 186:707f6e361f3e 367 CMSDK_GPIO_0->INTENCLR |= ch_bit;
Anna Bridge 186:707f6e361f3e 368 }
Anna Bridge 186:707f6e361f3e 369 } else {
Anna Bridge 186:707f6e361f3e 370 CMSDK_GPIO_0->INTPOLCLR |= ch_bit;
Anna Bridge 186:707f6e361f3e 371 if (enable) {
Anna Bridge 186:707f6e361f3e 372 CMSDK_GPIO_0->INTENSET |= ch_bit;
Anna Bridge 186:707f6e361f3e 373 } else {
Anna Bridge 186:707f6e361f3e 374 CMSDK_GPIO_0->INTENCLR |= ch_bit;
Anna Bridge 186:707f6e361f3e 375 }
Anna Bridge 186:707f6e361f3e 376 }
Anna Bridge 186:707f6e361f3e 377 }
Anna Bridge 186:707f6e361f3e 378 if (obj->ch >= 16) {
Anna Bridge 186:707f6e361f3e 379 CMSDK_GPIO_1->INTTYPESET &= ch_bit;
Anna Bridge 186:707f6e361f3e 380 if (event == IRQ_RISE) {
Anna Bridge 186:707f6e361f3e 381 CMSDK_GPIO_1->INTPOLSET |= ch_bit;
Anna Bridge 186:707f6e361f3e 382 if (enable) {
Anna Bridge 186:707f6e361f3e 383 CMSDK_GPIO_1->INTENSET |= ch_bit;
Anna Bridge 186:707f6e361f3e 384 } else {
Anna Bridge 186:707f6e361f3e 385 CMSDK_GPIO_1->INTENCLR |= ch_bit;
Anna Bridge 186:707f6e361f3e 386 }
Anna Bridge 186:707f6e361f3e 387 } else {
Anna Bridge 186:707f6e361f3e 388 CMSDK_GPIO_1->INTPOLCLR |= ch_bit;
Anna Bridge 186:707f6e361f3e 389 if (enable) {
Anna Bridge 186:707f6e361f3e 390 CMSDK_GPIO_1->INTENSET |= ch_bit;
Anna Bridge 186:707f6e361f3e 391 } else {
Anna Bridge 186:707f6e361f3e 392 CMSDK_GPIO_1->INTENCLR |= ch_bit;
Anna Bridge 186:707f6e361f3e 393 }
Anna Bridge 186:707f6e361f3e 394 }
Anna Bridge 186:707f6e361f3e 395 }
Anna Bridge 186:707f6e361f3e 396 }
Anna Bridge 186:707f6e361f3e 397
Anna Bridge 186:707f6e361f3e 398 void gpio_irq_enable(gpio_irq_t *obj)
Anna Bridge 186:707f6e361f3e 399 {
Anna Bridge 186:707f6e361f3e 400 NVIC_EnableIRQ((IRQn_Type)(PININT_IRQ + obj->ch));
Anna Bridge 186:707f6e361f3e 401 }
Anna Bridge 186:707f6e361f3e 402
Anna Bridge 186:707f6e361f3e 403 void gpio_irq_disable(gpio_irq_t *obj)
Anna Bridge 186:707f6e361f3e 404 {
Anna Bridge 186:707f6e361f3e 405 NVIC_DisableIRQ((IRQn_Type)(PININT_IRQ + obj->ch));
Anna Bridge 186:707f6e361f3e 406 }