Kenji Arai / mbed-dev4BLE

mbed library sources, mbed-dev only for TYBLE16

Fork of mbed-dev by mbed official

Please refer flowing link.
/users/kenjiArai/notebook/tyble16-module-will-become-a-mbed-family--mbedliza/

targets/TARGET_STM/TARGET_STM32F7/serial_device.c@180:96ed750bd169, 2018-01-17 (annotated)

Committer:
Anna Bridge
Date:
Wed Jan 17 15:23:54 2018 +0000
Revision:
180:96ed750bd169
Parent:
177:d650f5d4c87a
Child:
181:57724642e740
mbed-dev libray. Release version 158

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 167:e84263d55307 1 /* mbed Microcontroller Library
AnnaBridge 167:e84263d55307 2 *******************************************************************************
Anna Bridge 180:96ed750bd169 3 * Copyright (c) 2017, STMicroelectronics
AnnaBridge 167:e84263d55307 4 * All rights reserved.
AnnaBridge 167:e84263d55307 5 *
AnnaBridge 167:e84263d55307 6 * Redistribution and use in source and binary forms, with or without
AnnaBridge 167:e84263d55307 7 * modification, are permitted provided that the following conditions are met:
AnnaBridge 167:e84263d55307 8 *
AnnaBridge 167:e84263d55307 9 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 167:e84263d55307 10 * this list of conditions and the following disclaimer.
AnnaBridge 167:e84263d55307 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 167:e84263d55307 12 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 167:e84263d55307 13 * and/or other materials provided with the distribution.
AnnaBridge 167:e84263d55307 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 167:e84263d55307 15 * may be used to endorse or promote products derived from this software
AnnaBridge 167:e84263d55307 16 * without specific prior written permission.
AnnaBridge 167:e84263d55307 17 *
AnnaBridge 167:e84263d55307 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 167:e84263d55307 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 167:e84263d55307 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 167:e84263d55307 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 167:e84263d55307 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 167:e84263d55307 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 167:e84263d55307 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 167:e84263d55307 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 167:e84263d55307 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 167:e84263d55307 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 167:e84263d55307 28 *******************************************************************************
AnnaBridge 167:e84263d55307 29 */
AnnaBridge 167:e84263d55307 30
AnnaBridge 167:e84263d55307 31 #if DEVICE_SERIAL
AnnaBridge 167:e84263d55307 32
Anna Bridge 180:96ed750bd169 33 #include "serial_api_hal.h"
AnnaBridge 167:e84263d55307 34
AnnaBridge 167:e84263d55307 35 #define UART_NUM (8)
Anna Bridge 180:96ed750bd169 36 uint32_t serial_irq_ids[UART_NUM] = {0};
AnnaBridge 167:e84263d55307 37 UART_HandleTypeDef uart_handlers[UART_NUM];
AnnaBridge 167:e84263d55307 38
AnnaBridge 167:e84263d55307 39 static uart_irq_handler irq_handler;
AnnaBridge 167:e84263d55307 40
AnnaBridge 167:e84263d55307 41 /******************************************************************************
AnnaBridge 167:e84263d55307 42 * INTERRUPTS HANDLING
AnnaBridge 167:e84263d55307 43 ******************************************************************************/
AnnaBridge 167:e84263d55307 44
AnnaBridge 167:e84263d55307 45 static void uart_irq(int id)
AnnaBridge 167:e84263d55307 46 {
AnnaBridge 167:e84263d55307 47 UART_HandleTypeDef * huart = &uart_handlers[id];
AnnaBridge 167:e84263d55307 48
AnnaBridge 167:e84263d55307 49 if (serial_irq_ids[id] != 0) {
Kojto 170:19eb464bc2be 50 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TXE) != RESET) {
Kojto 170:19eb464bc2be 51 if (__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) {
AnnaBridge 167:e84263d55307 52 irq_handler(serial_irq_ids[id], TxIrq);
AnnaBridge 167:e84263d55307 53 }
AnnaBridge 167:e84263d55307 54 }
AnnaBridge 167:e84263d55307 55 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE) != RESET) {
Kojto 169:e3b6fe271b81 56 if (__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) {
AnnaBridge 167:e84263d55307 57 irq_handler(serial_irq_ids[id], RxIrq);
Kojto 170:19eb464bc2be 58 /* Flag has been cleared when reading the content */
AnnaBridge 167:e84263d55307 59 }
AnnaBridge 167:e84263d55307 60 }
AnnaBridge 167:e84263d55307 61 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
Kojto 169:e3b6fe271b81 62 if (__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) {
AnnaBridge 167:e84263d55307 63 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
AnnaBridge 167:e84263d55307 64 }
AnnaBridge 167:e84263d55307 65 }
AnnaBridge 167:e84263d55307 66 }
AnnaBridge 167:e84263d55307 67 }
AnnaBridge 167:e84263d55307 68
AnnaBridge 167:e84263d55307 69 static void uart1_irq(void)
AnnaBridge 167:e84263d55307 70 {
AnnaBridge 167:e84263d55307 71 uart_irq(0);
AnnaBridge 167:e84263d55307 72 }
AnnaBridge 167:e84263d55307 73
AnnaBridge 167:e84263d55307 74 static void uart2_irq(void)
AnnaBridge 167:e84263d55307 75 {
AnnaBridge 167:e84263d55307 76 uart_irq(1);
AnnaBridge 167:e84263d55307 77 }
AnnaBridge 167:e84263d55307 78
AnnaBridge 167:e84263d55307 79 #if defined(USART3_BASE)
AnnaBridge 167:e84263d55307 80 static void uart3_irq(void)
AnnaBridge 167:e84263d55307 81 {
AnnaBridge 167:e84263d55307 82 uart_irq(2);
AnnaBridge 167:e84263d55307 83 }
AnnaBridge 167:e84263d55307 84 #endif
AnnaBridge 167:e84263d55307 85
AnnaBridge 167:e84263d55307 86 #if defined(UART4_BASE)
AnnaBridge 167:e84263d55307 87 static void uart4_irq(void)
AnnaBridge 167:e84263d55307 88 {
AnnaBridge 167:e84263d55307 89 uart_irq(3);
AnnaBridge 167:e84263d55307 90 }
AnnaBridge 167:e84263d55307 91 #endif
AnnaBridge 167:e84263d55307 92
AnnaBridge 167:e84263d55307 93 #if defined(UART5_BASE)
AnnaBridge 167:e84263d55307 94 static void uart5_irq(void)
AnnaBridge 167:e84263d55307 95 {
AnnaBridge 167:e84263d55307 96 uart_irq(4);
AnnaBridge 167:e84263d55307 97 }
AnnaBridge 167:e84263d55307 98 #endif
AnnaBridge 167:e84263d55307 99
AnnaBridge 167:e84263d55307 100 static void uart6_irq(void)
AnnaBridge 167:e84263d55307 101 {
AnnaBridge 167:e84263d55307 102 uart_irq(5);
AnnaBridge 167:e84263d55307 103 }
AnnaBridge 167:e84263d55307 104
AnnaBridge 167:e84263d55307 105 #if defined(UART7_BASE)
AnnaBridge 167:e84263d55307 106 static void uart7_irq(void)
AnnaBridge 167:e84263d55307 107 {
AnnaBridge 167:e84263d55307 108 uart_irq(6);
AnnaBridge 167:e84263d55307 109 }
AnnaBridge 167:e84263d55307 110 #endif
AnnaBridge 167:e84263d55307 111
AnnaBridge 167:e84263d55307 112 #if defined(UART8_BASE)
AnnaBridge 167:e84263d55307 113 static void uart8_irq(void)
AnnaBridge 167:e84263d55307 114 {
AnnaBridge 167:e84263d55307 115 uart_irq(7);
AnnaBridge 167:e84263d55307 116 }
AnnaBridge 167:e84263d55307 117 #endif
AnnaBridge 167:e84263d55307 118
AnnaBridge 167:e84263d55307 119 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
AnnaBridge 167:e84263d55307 120 {
AnnaBridge 167:e84263d55307 121 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 122
AnnaBridge 167:e84263d55307 123 irq_handler = handler;
AnnaBridge 167:e84263d55307 124 serial_irq_ids[obj_s->index] = id;
AnnaBridge 167:e84263d55307 125 }
AnnaBridge 167:e84263d55307 126
AnnaBridge 167:e84263d55307 127 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
AnnaBridge 167:e84263d55307 128 {
AnnaBridge 167:e84263d55307 129 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 130 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 131 IRQn_Type irq_n = (IRQn_Type)0;
AnnaBridge 167:e84263d55307 132 uint32_t vector = 0;
AnnaBridge 167:e84263d55307 133
AnnaBridge 167:e84263d55307 134 switch (obj_s->uart) {
AnnaBridge 167:e84263d55307 135 case UART_1:
AnnaBridge 167:e84263d55307 136 irq_n = USART1_IRQn;
AnnaBridge 167:e84263d55307 137 vector = (uint32_t)&uart1_irq;
AnnaBridge 167:e84263d55307 138 break;
AnnaBridge 167:e84263d55307 139
AnnaBridge 167:e84263d55307 140 case UART_2:
AnnaBridge 167:e84263d55307 141 irq_n = USART2_IRQn;
AnnaBridge 167:e84263d55307 142 vector = (uint32_t)&uart2_irq;
AnnaBridge 167:e84263d55307 143 break;
AnnaBridge 167:e84263d55307 144 #if defined(USART3_BASE)
AnnaBridge 167:e84263d55307 145 case UART_3:
AnnaBridge 167:e84263d55307 146 irq_n = USART3_IRQn;
AnnaBridge 167:e84263d55307 147 vector = (uint32_t)&uart3_irq;
AnnaBridge 167:e84263d55307 148 break;
AnnaBridge 167:e84263d55307 149 #endif
AnnaBridge 167:e84263d55307 150 #if defined(UART4_BASE)
AnnaBridge 167:e84263d55307 151 case UART_4:
AnnaBridge 167:e84263d55307 152 irq_n = UART4_IRQn;
AnnaBridge 167:e84263d55307 153 vector = (uint32_t)&uart4_irq;
AnnaBridge 167:e84263d55307 154 break;
AnnaBridge 167:e84263d55307 155 #endif
AnnaBridge 167:e84263d55307 156 #if defined(UART5_BASE)
AnnaBridge 167:e84263d55307 157 case UART_5:
AnnaBridge 167:e84263d55307 158 irq_n = UART5_IRQn;
AnnaBridge 167:e84263d55307 159 vector = (uint32_t)&uart5_irq;
AnnaBridge 167:e84263d55307 160 break;
AnnaBridge 167:e84263d55307 161 #endif
AnnaBridge 167:e84263d55307 162 case UART_6:
AnnaBridge 167:e84263d55307 163 irq_n = USART6_IRQn;
AnnaBridge 167:e84263d55307 164 vector = (uint32_t)&uart6_irq;
AnnaBridge 167:e84263d55307 165 break;
AnnaBridge 167:e84263d55307 166 #if defined(UART7_BASE)
AnnaBridge 167:e84263d55307 167 case UART_7:
AnnaBridge 167:e84263d55307 168 irq_n = UART7_IRQn;
AnnaBridge 167:e84263d55307 169 vector = (uint32_t)&uart7_irq;
AnnaBridge 167:e84263d55307 170 break;
AnnaBridge 167:e84263d55307 171 #endif
AnnaBridge 167:e84263d55307 172 #if defined(UART8_BASE)
AnnaBridge 167:e84263d55307 173 case UART_8:
AnnaBridge 167:e84263d55307 174 irq_n = UART8_IRQn;
AnnaBridge 167:e84263d55307 175 vector = (uint32_t)&uart8_irq;
AnnaBridge 167:e84263d55307 176 break;
AnnaBridge 167:e84263d55307 177 #endif
AnnaBridge 167:e84263d55307 178 }
AnnaBridge 167:e84263d55307 179
AnnaBridge 167:e84263d55307 180 if (enable) {
AnnaBridge 167:e84263d55307 181 if (irq == RxIrq) {
AnnaBridge 167:e84263d55307 182 __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
AnnaBridge 167:e84263d55307 183 } else { // TxIrq
Kojto 170:19eb464bc2be 184 __HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
AnnaBridge 167:e84263d55307 185 }
AnnaBridge 167:e84263d55307 186 NVIC_SetVector(irq_n, vector);
AnnaBridge 167:e84263d55307 187 NVIC_EnableIRQ(irq_n);
AnnaBridge 167:e84263d55307 188
AnnaBridge 167:e84263d55307 189 } else { // disable
AnnaBridge 167:e84263d55307 190 int all_disabled = 0;
AnnaBridge 167:e84263d55307 191 if (irq == RxIrq) {
AnnaBridge 167:e84263d55307 192 __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
AnnaBridge 167:e84263d55307 193 // Check if TxIrq is disabled too
AnnaBridge 167:e84263d55307 194 if ((huart->Instance->CR1 & USART_CR1_TXEIE) == 0) {
AnnaBridge 167:e84263d55307 195 all_disabled = 1;
AnnaBridge 167:e84263d55307 196 }
AnnaBridge 167:e84263d55307 197 } else { // TxIrq
Kojto 170:19eb464bc2be 198 __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
AnnaBridge 167:e84263d55307 199 // Check if RxIrq is disabled too
AnnaBridge 167:e84263d55307 200 if ((huart->Instance->CR1 & USART_CR1_RXNEIE) == 0) {
AnnaBridge 167:e84263d55307 201 all_disabled = 1;
AnnaBridge 167:e84263d55307 202 }
AnnaBridge 167:e84263d55307 203 }
AnnaBridge 167:e84263d55307 204
AnnaBridge 167:e84263d55307 205 if (all_disabled) {
AnnaBridge 167:e84263d55307 206 NVIC_DisableIRQ(irq_n);
AnnaBridge 167:e84263d55307 207 }
AnnaBridge 167:e84263d55307 208 }
AnnaBridge 167:e84263d55307 209 }
AnnaBridge 167:e84263d55307 210
AnnaBridge 167:e84263d55307 211 /******************************************************************************
AnnaBridge 167:e84263d55307 212 * READ/WRITE
AnnaBridge 167:e84263d55307 213 ******************************************************************************/
AnnaBridge 167:e84263d55307 214
AnnaBridge 167:e84263d55307 215 int serial_getc(serial_t *obj)
AnnaBridge 167:e84263d55307 216 {
AnnaBridge 167:e84263d55307 217 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 218 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 219
AnnaBridge 167:e84263d55307 220 while (!serial_readable(obj));
AnnaBridge 167:e84263d55307 221 return (int)(huart->Instance->RDR & 0x1FF);
AnnaBridge 167:e84263d55307 222 }
AnnaBridge 167:e84263d55307 223
AnnaBridge 167:e84263d55307 224 void serial_putc(serial_t *obj, int c)
AnnaBridge 167:e84263d55307 225 {
AnnaBridge 167:e84263d55307 226 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 227 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 228
AnnaBridge 167:e84263d55307 229 while (!serial_writable(obj));
AnnaBridge 167:e84263d55307 230 huart->Instance->TDR = (uint32_t)(c & 0x1FF);
AnnaBridge 167:e84263d55307 231 }
AnnaBridge 167:e84263d55307 232
AnnaBridge 167:e84263d55307 233 void serial_clear(serial_t *obj)
AnnaBridge 167:e84263d55307 234 {
AnnaBridge 167:e84263d55307 235 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 236 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 237
AnnaBridge 167:e84263d55307 238 __HAL_UART_CLEAR_IT(huart, UART_FLAG_TXE);
AnnaBridge 167:e84263d55307 239 __HAL_UART_CLEAR_IT(huart, UART_FLAG_RXNE);
AnnaBridge 167:e84263d55307 240 }
AnnaBridge 167:e84263d55307 241
AnnaBridge 167:e84263d55307 242 void serial_break_set(serial_t *obj)
AnnaBridge 167:e84263d55307 243 {
AnnaBridge 167:e84263d55307 244 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 245 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 246
AnnaBridge 167:e84263d55307 247 HAL_LIN_SendBreak(huart);
AnnaBridge 167:e84263d55307 248 }
AnnaBridge 167:e84263d55307 249
AnnaBridge 167:e84263d55307 250 #if DEVICE_SERIAL_ASYNCH
AnnaBridge 167:e84263d55307 251
AnnaBridge 167:e84263d55307 252 /******************************************************************************
AnnaBridge 167:e84263d55307 253 * LOCAL HELPER FUNCTIONS
AnnaBridge 167:e84263d55307 254 ******************************************************************************/
AnnaBridge 167:e84263d55307 255
AnnaBridge 167:e84263d55307 256 /**
AnnaBridge 167:e84263d55307 257 * Configure the TX buffer for an asynchronous write serial transaction
AnnaBridge 167:e84263d55307 258 *
AnnaBridge 167:e84263d55307 259 * @param obj The serial object.
AnnaBridge 167:e84263d55307 260 * @param tx The buffer for sending.
AnnaBridge 167:e84263d55307 261 * @param tx_length The number of words to transmit.
AnnaBridge 167:e84263d55307 262 */
AnnaBridge 167:e84263d55307 263 static void serial_tx_buffer_set(serial_t *obj, void *tx, int tx_length, uint8_t width)
AnnaBridge 167:e84263d55307 264 {
AnnaBridge 167:e84263d55307 265 (void)width;
AnnaBridge 167:e84263d55307 266
AnnaBridge 167:e84263d55307 267 // Exit if a transmit is already on-going
AnnaBridge 167:e84263d55307 268 if (serial_tx_active(obj)) {
AnnaBridge 167:e84263d55307 269 return;
AnnaBridge 167:e84263d55307 270 }
AnnaBridge 167:e84263d55307 271
AnnaBridge 167:e84263d55307 272 obj->tx_buff.buffer = tx;
AnnaBridge 167:e84263d55307 273 obj->tx_buff.length = tx_length;
AnnaBridge 167:e84263d55307 274 obj->tx_buff.pos = 0;
AnnaBridge 167:e84263d55307 275 }
AnnaBridge 167:e84263d55307 276
AnnaBridge 167:e84263d55307 277 /**
AnnaBridge 167:e84263d55307 278 * Configure the RX buffer for an asynchronous write serial transaction
AnnaBridge 167:e84263d55307 279 *
AnnaBridge 167:e84263d55307 280 * @param obj The serial object.
AnnaBridge 167:e84263d55307 281 * @param tx The buffer for sending.
AnnaBridge 167:e84263d55307 282 * @param tx_length The number of words to transmit.
AnnaBridge 167:e84263d55307 283 */
AnnaBridge 167:e84263d55307 284 static void serial_rx_buffer_set(serial_t *obj, void *rx, int rx_length, uint8_t width)
AnnaBridge 167:e84263d55307 285 {
AnnaBridge 167:e84263d55307 286 (void)width;
AnnaBridge 167:e84263d55307 287
AnnaBridge 167:e84263d55307 288 // Exit if a reception is already on-going
AnnaBridge 167:e84263d55307 289 if (serial_rx_active(obj)) {
AnnaBridge 167:e84263d55307 290 return;
AnnaBridge 167:e84263d55307 291 }
AnnaBridge 167:e84263d55307 292
AnnaBridge 167:e84263d55307 293 obj->rx_buff.buffer = rx;
AnnaBridge 167:e84263d55307 294 obj->rx_buff.length = rx_length;
AnnaBridge 167:e84263d55307 295 obj->rx_buff.pos = 0;
AnnaBridge 167:e84263d55307 296 }
AnnaBridge 167:e84263d55307 297
AnnaBridge 167:e84263d55307 298 /**
AnnaBridge 167:e84263d55307 299 * Configure events
AnnaBridge 167:e84263d55307 300 *
AnnaBridge 167:e84263d55307 301 * @param obj The serial object
AnnaBridge 167:e84263d55307 302 * @param event The logical OR of the events to configure
AnnaBridge 167:e84263d55307 303 * @param enable Set to non-zero to enable events, or zero to disable them
AnnaBridge 167:e84263d55307 304 */
AnnaBridge 167:e84263d55307 305 static void serial_enable_event(serial_t *obj, int event, uint8_t enable)
AnnaBridge 167:e84263d55307 306 {
AnnaBridge 167:e84263d55307 307 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 308
AnnaBridge 167:e84263d55307 309 // Shouldn't have to enable interrupt here, just need to keep track of the requested events.
AnnaBridge 167:e84263d55307 310 if (enable) {
AnnaBridge 167:e84263d55307 311 obj_s->events |= event;
AnnaBridge 167:e84263d55307 312 } else {
AnnaBridge 167:e84263d55307 313 obj_s->events &= ~event;
AnnaBridge 167:e84263d55307 314 }
AnnaBridge 167:e84263d55307 315 }
AnnaBridge 167:e84263d55307 316
AnnaBridge 167:e84263d55307 317
AnnaBridge 167:e84263d55307 318 /**
AnnaBridge 167:e84263d55307 319 * Get index of serial object TX IRQ, relating it to the physical peripheral.
AnnaBridge 167:e84263d55307 320 *
AnnaBridge 167:e84263d55307 321 * @param obj pointer to serial object
AnnaBridge 167:e84263d55307 322 * @return internal NVIC TX IRQ index of U(S)ART peripheral
AnnaBridge 167:e84263d55307 323 */
AnnaBridge 167:e84263d55307 324 static IRQn_Type serial_get_irq_n(serial_t *obj)
AnnaBridge 167:e84263d55307 325 {
AnnaBridge 167:e84263d55307 326 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 327 IRQn_Type irq_n;
AnnaBridge 167:e84263d55307 328
AnnaBridge 167:e84263d55307 329 switch (obj_s->index) {
AnnaBridge 167:e84263d55307 330
AnnaBridge 167:e84263d55307 331 case 0:
AnnaBridge 167:e84263d55307 332 irq_n = USART1_IRQn;
AnnaBridge 167:e84263d55307 333 break;
AnnaBridge 167:e84263d55307 334
AnnaBridge 167:e84263d55307 335 case 1:
AnnaBridge 167:e84263d55307 336 irq_n = USART2_IRQn;
AnnaBridge 167:e84263d55307 337 break;
AnnaBridge 167:e84263d55307 338 #if defined(USART3_BASE)
AnnaBridge 167:e84263d55307 339 case 2:
AnnaBridge 167:e84263d55307 340 irq_n = USART3_IRQn;
AnnaBridge 167:e84263d55307 341 break;
AnnaBridge 167:e84263d55307 342 #endif
AnnaBridge 167:e84263d55307 343 #if defined(UART4_BASE)
AnnaBridge 167:e84263d55307 344 case 3:
AnnaBridge 167:e84263d55307 345 irq_n = UART4_IRQn;
AnnaBridge 167:e84263d55307 346 break;
AnnaBridge 167:e84263d55307 347 #endif
AnnaBridge 167:e84263d55307 348 #if defined(UART5_BASE)
AnnaBridge 167:e84263d55307 349 case 4:
AnnaBridge 167:e84263d55307 350 irq_n = UART5_IRQn;
AnnaBridge 167:e84263d55307 351 break;
AnnaBridge 167:e84263d55307 352 #endif
AnnaBridge 167:e84263d55307 353 case 5:
AnnaBridge 167:e84263d55307 354 irq_n = USART6_IRQn;
AnnaBridge 167:e84263d55307 355 break;
AnnaBridge 167:e84263d55307 356 #if defined(UART7_BASE)
AnnaBridge 167:e84263d55307 357 case 6:
AnnaBridge 167:e84263d55307 358 irq_n = UART7_IRQn;
AnnaBridge 167:e84263d55307 359 break;
AnnaBridge 167:e84263d55307 360 #endif
AnnaBridge 167:e84263d55307 361 #if defined(UART8_BASE)
AnnaBridge 167:e84263d55307 362 case 7:
AnnaBridge 167:e84263d55307 363 irq_n = UART8_IRQn;
AnnaBridge 167:e84263d55307 364 break;
AnnaBridge 167:e84263d55307 365 #endif
AnnaBridge 167:e84263d55307 366 default:
AnnaBridge 167:e84263d55307 367 irq_n = (IRQn_Type)0;
AnnaBridge 167:e84263d55307 368 }
AnnaBridge 167:e84263d55307 369
AnnaBridge 167:e84263d55307 370 return irq_n;
AnnaBridge 167:e84263d55307 371 }
AnnaBridge 167:e84263d55307 372
AnnaBridge 167:e84263d55307 373 /******************************************************************************
AnnaBridge 167:e84263d55307 374 * MBED API FUNCTIONS
AnnaBridge 167:e84263d55307 375 ******************************************************************************/
AnnaBridge 167:e84263d55307 376
AnnaBridge 167:e84263d55307 377 /**
AnnaBridge 167:e84263d55307 378 * Begin asynchronous TX transfer. The used buffer is specified in the serial
AnnaBridge 167:e84263d55307 379 * object, tx_buff
AnnaBridge 167:e84263d55307 380 *
AnnaBridge 167:e84263d55307 381 * @param obj The serial object
AnnaBridge 167:e84263d55307 382 * @param tx The buffer for sending
AnnaBridge 167:e84263d55307 383 * @param tx_length The number of words to transmit
AnnaBridge 167:e84263d55307 384 * @param tx_width The bit width of buffer word
AnnaBridge 167:e84263d55307 385 * @param handler The serial handler
AnnaBridge 167:e84263d55307 386 * @param event The logical OR of events to be registered
AnnaBridge 167:e84263d55307 387 * @param hint A suggestion for how to use DMA with this transfer
AnnaBridge 167:e84263d55307 388 * @return Returns number of data transfered, or 0 otherwise
AnnaBridge 167:e84263d55307 389 */
AnnaBridge 167:e84263d55307 390 int serial_tx_asynch(serial_t *obj, const void *tx, size_t tx_length, uint8_t tx_width, uint32_t handler, uint32_t event, DMAUsage hint)
AnnaBridge 167:e84263d55307 391 {
AnnaBridge 167:e84263d55307 392 // TODO: DMA usage is currently ignored
AnnaBridge 167:e84263d55307 393 (void) hint;
AnnaBridge 167:e84263d55307 394
AnnaBridge 167:e84263d55307 395 // Check buffer is ok
AnnaBridge 167:e84263d55307 396 MBED_ASSERT(tx != (void*)0);
AnnaBridge 167:e84263d55307 397 MBED_ASSERT(tx_width == 8); // support only 8b width
AnnaBridge 167:e84263d55307 398
AnnaBridge 167:e84263d55307 399 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 400 UART_HandleTypeDef * huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 401
AnnaBridge 167:e84263d55307 402 if (tx_length == 0) {
AnnaBridge 167:e84263d55307 403 return 0;
AnnaBridge 167:e84263d55307 404 }
AnnaBridge 167:e84263d55307 405
AnnaBridge 167:e84263d55307 406 // Set up buffer
AnnaBridge 167:e84263d55307 407 serial_tx_buffer_set(obj, (void *)tx, tx_length, tx_width);
AnnaBridge 167:e84263d55307 408
AnnaBridge 167:e84263d55307 409 // Set up events
AnnaBridge 167:e84263d55307 410 serial_enable_event(obj, SERIAL_EVENT_TX_ALL, 0); // Clear all events
AnnaBridge 167:e84263d55307 411 serial_enable_event(obj, event, 1); // Set only the wanted events
AnnaBridge 167:e84263d55307 412
AnnaBridge 167:e84263d55307 413 // Enable interrupt
AnnaBridge 167:e84263d55307 414 IRQn_Type irq_n = serial_get_irq_n(obj);
AnnaBridge 167:e84263d55307 415 NVIC_ClearPendingIRQ(irq_n);
AnnaBridge 167:e84263d55307 416 NVIC_DisableIRQ(irq_n);
AnnaBridge 167:e84263d55307 417 NVIC_SetPriority(irq_n, 1);
AnnaBridge 167:e84263d55307 418 NVIC_SetVector(irq_n, (uint32_t)handler);
AnnaBridge 167:e84263d55307 419 NVIC_EnableIRQ(irq_n);
AnnaBridge 167:e84263d55307 420
AnnaBridge 167:e84263d55307 421 // the following function will enable UART_IT_TXE and error interrupts
AnnaBridge 167:e84263d55307 422 if (HAL_UART_Transmit_IT(huart, (uint8_t*)tx, tx_length) != HAL_OK) {
AnnaBridge 167:e84263d55307 423 return 0;
AnnaBridge 167:e84263d55307 424 }
AnnaBridge 167:e84263d55307 425
AnnaBridge 167:e84263d55307 426 return tx_length;
AnnaBridge 167:e84263d55307 427 }
AnnaBridge 167:e84263d55307 428
AnnaBridge 167:e84263d55307 429 /**
AnnaBridge 167:e84263d55307 430 * Begin asynchronous RX transfer (enable interrupt for data collecting)
AnnaBridge 167:e84263d55307 431 * The used buffer is specified in the serial object, rx_buff
AnnaBridge 167:e84263d55307 432 *
AnnaBridge 167:e84263d55307 433 * @param obj The serial object
AnnaBridge 167:e84263d55307 434 * @param rx The buffer for sending
AnnaBridge 167:e84263d55307 435 * @param rx_length The number of words to transmit
AnnaBridge 167:e84263d55307 436 * @param rx_width The bit width of buffer word
AnnaBridge 167:e84263d55307 437 * @param handler The serial handler
AnnaBridge 167:e84263d55307 438 * @param event The logical OR of events to be registered
AnnaBridge 167:e84263d55307 439 * @param handler The serial handler
AnnaBridge 167:e84263d55307 440 * @param char_match A character in range 0-254 to be matched
AnnaBridge 167:e84263d55307 441 * @param hint A suggestion for how to use DMA with this transfer
AnnaBridge 167:e84263d55307 442 */
AnnaBridge 167:e84263d55307 443 void serial_rx_asynch(serial_t *obj, void *rx, size_t rx_length, uint8_t rx_width, uint32_t handler, uint32_t event, uint8_t char_match, DMAUsage hint)
AnnaBridge 167:e84263d55307 444 {
AnnaBridge 167:e84263d55307 445 // TODO: DMA usage is currently ignored
AnnaBridge 167:e84263d55307 446 (void) hint;
AnnaBridge 167:e84263d55307 447
AnnaBridge 167:e84263d55307 448 /* Sanity check arguments */
AnnaBridge 167:e84263d55307 449 MBED_ASSERT(obj);
AnnaBridge 167:e84263d55307 450 MBED_ASSERT(rx != (void*)0);
AnnaBridge 167:e84263d55307 451 MBED_ASSERT(rx_width == 8); // support only 8b width
AnnaBridge 167:e84263d55307 452
AnnaBridge 167:e84263d55307 453 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 454 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 455
AnnaBridge 167:e84263d55307 456 serial_enable_event(obj, SERIAL_EVENT_RX_ALL, 0);
AnnaBridge 167:e84263d55307 457 serial_enable_event(obj, event, 1);
AnnaBridge 167:e84263d55307 458
AnnaBridge 167:e84263d55307 459 // set CharMatch
AnnaBridge 167:e84263d55307 460 obj->char_match = char_match;
AnnaBridge 167:e84263d55307 461
AnnaBridge 167:e84263d55307 462 serial_rx_buffer_set(obj, rx, rx_length, rx_width);
AnnaBridge 167:e84263d55307 463
AnnaBridge 167:e84263d55307 464 IRQn_Type irq_n = serial_get_irq_n(obj);
AnnaBridge 167:e84263d55307 465 NVIC_ClearPendingIRQ(irq_n);
AnnaBridge 167:e84263d55307 466 NVIC_DisableIRQ(irq_n);
AnnaBridge 167:e84263d55307 467 NVIC_SetPriority(irq_n, 0);
AnnaBridge 167:e84263d55307 468 NVIC_SetVector(irq_n, (uint32_t)handler);
AnnaBridge 167:e84263d55307 469 NVIC_EnableIRQ(irq_n);
AnnaBridge 167:e84263d55307 470
AnnaBridge 167:e84263d55307 471 // following HAL function will enable the RXNE interrupt + error interrupts
AnnaBridge 167:e84263d55307 472 HAL_UART_Receive_IT(huart, (uint8_t*)rx, rx_length);
AnnaBridge 167:e84263d55307 473 }
AnnaBridge 167:e84263d55307 474
AnnaBridge 167:e84263d55307 475 /**
AnnaBridge 167:e84263d55307 476 * Attempts to determine if the serial peripheral is already in use for TX
AnnaBridge 167:e84263d55307 477 *
AnnaBridge 167:e84263d55307 478 * @param obj The serial object
AnnaBridge 167:e84263d55307 479 * @return Non-zero if the TX transaction is ongoing, 0 otherwise
AnnaBridge 167:e84263d55307 480 */
AnnaBridge 167:e84263d55307 481 uint8_t serial_tx_active(serial_t *obj)
AnnaBridge 167:e84263d55307 482 {
AnnaBridge 167:e84263d55307 483 MBED_ASSERT(obj);
AnnaBridge 167:e84263d55307 484
AnnaBridge 167:e84263d55307 485 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 486 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 487
AnnaBridge 167:e84263d55307 488 return ((HAL_UART_GetState(huart) == HAL_UART_STATE_BUSY_TX) ? 1 : 0);
AnnaBridge 167:e84263d55307 489 }
AnnaBridge 167:e84263d55307 490
AnnaBridge 167:e84263d55307 491 /**
AnnaBridge 167:e84263d55307 492 * Attempts to determine if the serial peripheral is already in use for RX
AnnaBridge 167:e84263d55307 493 *
AnnaBridge 167:e84263d55307 494 * @param obj The serial object
AnnaBridge 167:e84263d55307 495 * @return Non-zero if the RX transaction is ongoing, 0 otherwise
AnnaBridge 167:e84263d55307 496 */
AnnaBridge 167:e84263d55307 497 uint8_t serial_rx_active(serial_t *obj)
AnnaBridge 167:e84263d55307 498 {
AnnaBridge 167:e84263d55307 499 MBED_ASSERT(obj);
AnnaBridge 167:e84263d55307 500
AnnaBridge 167:e84263d55307 501 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 502 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 503
AnnaBridge 167:e84263d55307 504 return ((HAL_UART_GetState(huart) == HAL_UART_STATE_BUSY_RX) ? 1 : 0);
AnnaBridge 167:e84263d55307 505 }
AnnaBridge 167:e84263d55307 506
AnnaBridge 167:e84263d55307 507 void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart) {
AnnaBridge 167:e84263d55307 508 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {
AnnaBridge 167:e84263d55307 509 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_TCF);
AnnaBridge 167:e84263d55307 510 }
AnnaBridge 167:e84263d55307 511 }
AnnaBridge 167:e84263d55307 512
AnnaBridge 167:e84263d55307 513 void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart) {
AnnaBridge 167:e84263d55307 514 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_PE) != RESET) {
AnnaBridge 167:e84263d55307 515 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF);
AnnaBridge 167:e84263d55307 516 }
AnnaBridge 167:e84263d55307 517 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_FE) != RESET) {
AnnaBridge 167:e84263d55307 518 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF);
AnnaBridge 167:e84263d55307 519 }
AnnaBridge 167:e84263d55307 520 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_NE) != RESET) {
AnnaBridge 167:e84263d55307 521 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF);
AnnaBridge 167:e84263d55307 522 }
AnnaBridge 167:e84263d55307 523 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
AnnaBridge 167:e84263d55307 524 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
AnnaBridge 167:e84263d55307 525 }
AnnaBridge 167:e84263d55307 526 }
AnnaBridge 167:e84263d55307 527
AnnaBridge 167:e84263d55307 528 /**
AnnaBridge 167:e84263d55307 529 * The asynchronous TX and RX handler.
AnnaBridge 167:e84263d55307 530 *
AnnaBridge 167:e84263d55307 531 * @param obj The serial object
AnnaBridge 167:e84263d55307 532 * @return Returns event flags if a TX/RX transfer termination condition was met or 0 otherwise
AnnaBridge 167:e84263d55307 533 */
AnnaBridge 167:e84263d55307 534 int serial_irq_handler_asynch(serial_t *obj)
AnnaBridge 167:e84263d55307 535 {
AnnaBridge 167:e84263d55307 536 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 537 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 538
AnnaBridge 167:e84263d55307 539 volatile int return_event = 0;
AnnaBridge 167:e84263d55307 540 uint8_t *buf = (uint8_t*)(obj->rx_buff.buffer);
AnnaBridge 167:e84263d55307 541 uint8_t i = 0;
AnnaBridge 167:e84263d55307 542
AnnaBridge 167:e84263d55307 543 // TX PART:
AnnaBridge 167:e84263d55307 544 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {
AnnaBridge 167:e84263d55307 545 if (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC) != RESET) {
AnnaBridge 167:e84263d55307 546 // Return event SERIAL_EVENT_TX_COMPLETE if requested
AnnaBridge 167:e84263d55307 547 if ((obj_s->events & SERIAL_EVENT_TX_COMPLETE ) != 0) {
AnnaBridge 167:e84263d55307 548 return_event |= (SERIAL_EVENT_TX_COMPLETE & obj_s->events);
AnnaBridge 167:e84263d55307 549 }
AnnaBridge 167:e84263d55307 550 }
AnnaBridge 167:e84263d55307 551 }
AnnaBridge 167:e84263d55307 552
AnnaBridge 167:e84263d55307 553 // Handle error events
AnnaBridge 167:e84263d55307 554 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_PE) != RESET) {
Kojto 169:e3b6fe271b81 555 if (__HAL_UART_GET_IT(huart, UART_IT_PE) != RESET) {
AnnaBridge 167:e84263d55307 556 return_event |= (SERIAL_EVENT_RX_PARITY_ERROR & obj_s->events);
AnnaBridge 167:e84263d55307 557 }
AnnaBridge 167:e84263d55307 558 }
AnnaBridge 167:e84263d55307 559
AnnaBridge 167:e84263d55307 560 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_FE) != RESET) {
Kojto 169:e3b6fe271b81 561 if (__HAL_UART_GET_IT(huart, UART_IT_FE) != RESET) {
AnnaBridge 167:e84263d55307 562 return_event |= (SERIAL_EVENT_RX_FRAMING_ERROR & obj_s->events);
AnnaBridge 167:e84263d55307 563 }
AnnaBridge 167:e84263d55307 564 }
AnnaBridge 167:e84263d55307 565
AnnaBridge 167:e84263d55307 566 if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
Kojto 169:e3b6fe271b81 567 if (__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) {
AnnaBridge 167:e84263d55307 568 return_event |= (SERIAL_EVENT_RX_OVERRUN_ERROR & obj_s->events);
AnnaBridge 167:e84263d55307 569 }
AnnaBridge 167:e84263d55307 570 }
AnnaBridge 167:e84263d55307 571
AnnaBridge 167:e84263d55307 572 HAL_UART_IRQHandler(huart);
AnnaBridge 167:e84263d55307 573
AnnaBridge 167:e84263d55307 574 // Abort if an error occurs
AnnaBridge 177:d650f5d4c87a 575 if ((return_event & SERIAL_EVENT_RX_PARITY_ERROR) ||
AnnaBridge 177:d650f5d4c87a 576 (return_event & SERIAL_EVENT_RX_FRAMING_ERROR) ||
AnnaBridge 177:d650f5d4c87a 577 (return_event & SERIAL_EVENT_RX_OVERRUN_ERROR)) {
AnnaBridge 167:e84263d55307 578 return return_event;
AnnaBridge 167:e84263d55307 579 }
AnnaBridge 167:e84263d55307 580
AnnaBridge 167:e84263d55307 581 //RX PART
AnnaBridge 167:e84263d55307 582 if (huart->RxXferSize != 0) {
AnnaBridge 167:e84263d55307 583 obj->rx_buff.pos = huart->RxXferSize - huart->RxXferCount;
AnnaBridge 167:e84263d55307 584 }
AnnaBridge 167:e84263d55307 585 if ((huart->RxXferCount == 0) && (obj->rx_buff.pos >= (obj->rx_buff.length - 1))) {
AnnaBridge 167:e84263d55307 586 return_event |= (SERIAL_EVENT_RX_COMPLETE & obj_s->events);
AnnaBridge 167:e84263d55307 587 }
AnnaBridge 167:e84263d55307 588
AnnaBridge 167:e84263d55307 589 // Check if char_match is present
AnnaBridge 167:e84263d55307 590 if (obj_s->events & SERIAL_EVENT_RX_CHARACTER_MATCH) {
AnnaBridge 167:e84263d55307 591 if (buf != NULL) {
AnnaBridge 167:e84263d55307 592 for (i = 0; i < obj->rx_buff.pos; i++) {
AnnaBridge 167:e84263d55307 593 if (buf[i] == obj->char_match) {
AnnaBridge 167:e84263d55307 594 obj->rx_buff.pos = i;
AnnaBridge 167:e84263d55307 595 return_event |= (SERIAL_EVENT_RX_CHARACTER_MATCH & obj_s->events);
AnnaBridge 167:e84263d55307 596 serial_rx_abort_asynch(obj);
AnnaBridge 167:e84263d55307 597 break;
AnnaBridge 167:e84263d55307 598 }
AnnaBridge 167:e84263d55307 599 }
AnnaBridge 167:e84263d55307 600 }
AnnaBridge 167:e84263d55307 601 }
AnnaBridge 167:e84263d55307 602
AnnaBridge 167:e84263d55307 603 return return_event;
AnnaBridge 167:e84263d55307 604 }
AnnaBridge 167:e84263d55307 605
AnnaBridge 167:e84263d55307 606 /**
AnnaBridge 167:e84263d55307 607 * Abort the ongoing TX transaction. It disables the enabled interupt for TX and
AnnaBridge 167:e84263d55307 608 * flush TX hardware buffer if TX FIFO is used
AnnaBridge 167:e84263d55307 609 *
AnnaBridge 167:e84263d55307 610 * @param obj The serial object
AnnaBridge 167:e84263d55307 611 */
AnnaBridge 167:e84263d55307 612 void serial_tx_abort_asynch(serial_t *obj)
AnnaBridge 167:e84263d55307 613 {
AnnaBridge 167:e84263d55307 614 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 615 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 616
AnnaBridge 167:e84263d55307 617 __HAL_UART_DISABLE_IT(huart, UART_IT_TC);
AnnaBridge 167:e84263d55307 618 __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
AnnaBridge 167:e84263d55307 619
AnnaBridge 167:e84263d55307 620 // clear flags
AnnaBridge 167:e84263d55307 621 __HAL_UART_CLEAR_IT(huart, UART_FLAG_TC);
AnnaBridge 167:e84263d55307 622
AnnaBridge 167:e84263d55307 623 // reset states
AnnaBridge 167:e84263d55307 624 huart->TxXferCount = 0;
AnnaBridge 167:e84263d55307 625 // update handle state
AnnaBridge 167:e84263d55307 626 if(huart->gState == HAL_UART_STATE_BUSY_TX_RX) {
AnnaBridge 167:e84263d55307 627 huart->gState = HAL_UART_STATE_BUSY_RX;
AnnaBridge 167:e84263d55307 628 } else {
AnnaBridge 167:e84263d55307 629 huart->gState = HAL_UART_STATE_READY;
AnnaBridge 167:e84263d55307 630 }
AnnaBridge 167:e84263d55307 631 }
AnnaBridge 167:e84263d55307 632
AnnaBridge 167:e84263d55307 633 /**
AnnaBridge 167:e84263d55307 634 * Abort the ongoing RX transaction It disables the enabled interrupt for RX and
AnnaBridge 167:e84263d55307 635 * flush RX hardware buffer if RX FIFO is used
AnnaBridge 167:e84263d55307 636 *
AnnaBridge 167:e84263d55307 637 * @param obj The serial object
AnnaBridge 167:e84263d55307 638 */
AnnaBridge 167:e84263d55307 639 void serial_rx_abort_asynch(serial_t *obj)
AnnaBridge 167:e84263d55307 640 {
AnnaBridge 167:e84263d55307 641 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 642 UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
AnnaBridge 167:e84263d55307 643
AnnaBridge 167:e84263d55307 644 // disable interrupts
AnnaBridge 167:e84263d55307 645 __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
AnnaBridge 167:e84263d55307 646 __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
AnnaBridge 167:e84263d55307 647 __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
AnnaBridge 167:e84263d55307 648
AnnaBridge 167:e84263d55307 649 // clear flags
AnnaBridge 177:d650f5d4c87a 650 volatile uint32_t tmpval __attribute__((unused)) = huart->Instance->RDR; // Clear RXNE
AnnaBridge 167:e84263d55307 651 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF);
AnnaBridge 167:e84263d55307 652 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF);
AnnaBridge 167:e84263d55307 653 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF);
AnnaBridge 167:e84263d55307 654 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
AnnaBridge 167:e84263d55307 655
AnnaBridge 167:e84263d55307 656 // reset states
AnnaBridge 167:e84263d55307 657 huart->RxXferCount = 0;
AnnaBridge 167:e84263d55307 658 // update handle state
AnnaBridge 167:e84263d55307 659 if(huart->RxState == HAL_UART_STATE_BUSY_TX_RX) {
AnnaBridge 167:e84263d55307 660 huart->RxState = HAL_UART_STATE_BUSY_TX;
AnnaBridge 167:e84263d55307 661 } else {
AnnaBridge 167:e84263d55307 662 huart->RxState = HAL_UART_STATE_READY;
AnnaBridge 167:e84263d55307 663 }
AnnaBridge 167:e84263d55307 664 }
AnnaBridge 167:e84263d55307 665
Anna Bridge 180:96ed750bd169 666 #endif /* DEVICE_SERIAL_ASYNCH */
AnnaBridge 167:e84263d55307 667
AnnaBridge 167:e84263d55307 668 #if DEVICE_SERIAL_FC
AnnaBridge 167:e84263d55307 669
AnnaBridge 167:e84263d55307 670 /**
AnnaBridge 167:e84263d55307 671 * Set HW Control Flow
AnnaBridge 167:e84263d55307 672 * @param obj The serial object
AnnaBridge 167:e84263d55307 673 * @param type The Control Flow type (FlowControlNone, FlowControlRTS, FlowControlCTS, FlowControlRTSCTS)
AnnaBridge 167:e84263d55307 674 * @param rxflow Pin for the rxflow
AnnaBridge 167:e84263d55307 675 * @param txflow Pin for the txflow
AnnaBridge 167:e84263d55307 676 */
AnnaBridge 167:e84263d55307 677 void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow)
AnnaBridge 167:e84263d55307 678 {
AnnaBridge 167:e84263d55307 679 struct serial_s *obj_s = SERIAL_S(obj);
AnnaBridge 167:e84263d55307 680
AnnaBridge 167:e84263d55307 681 // Determine the UART to use (UART_1, UART_2, ...)
AnnaBridge 167:e84263d55307 682 UARTName uart_rts = (UARTName)pinmap_peripheral(rxflow, PinMap_UART_RTS);
AnnaBridge 167:e84263d55307 683 UARTName uart_cts = (UARTName)pinmap_peripheral(txflow, PinMap_UART_CTS);
AnnaBridge 167:e84263d55307 684
AnnaBridge 167:e84263d55307 685 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
AnnaBridge 167:e84263d55307 686 obj_s->uart = (UARTName)pinmap_merge(uart_cts, uart_rts);
AnnaBridge 167:e84263d55307 687 MBED_ASSERT(obj_s->uart != (UARTName)NC);
AnnaBridge 167:e84263d55307 688
AnnaBridge 167:e84263d55307 689 if(type == FlowControlNone) {
AnnaBridge 167:e84263d55307 690 // Disable hardware flow control
AnnaBridge 167:e84263d55307 691 obj_s->hw_flow_ctl = UART_HWCONTROL_NONE;
AnnaBridge 167:e84263d55307 692 }
AnnaBridge 167:e84263d55307 693 if (type == FlowControlRTS) {
AnnaBridge 167:e84263d55307 694 // Enable RTS
AnnaBridge 167:e84263d55307 695 MBED_ASSERT(uart_rts != (UARTName)NC);
AnnaBridge 167:e84263d55307 696 obj_s->hw_flow_ctl = UART_HWCONTROL_RTS;
AnnaBridge 167:e84263d55307 697 obj_s->pin_rts = rxflow;
AnnaBridge 167:e84263d55307 698 // Enable the pin for RTS function
AnnaBridge 167:e84263d55307 699 pinmap_pinout(rxflow, PinMap_UART_RTS);
AnnaBridge 167:e84263d55307 700 }
AnnaBridge 167:e84263d55307 701 if (type == FlowControlCTS) {
AnnaBridge 167:e84263d55307 702 // Enable CTS
AnnaBridge 167:e84263d55307 703 MBED_ASSERT(uart_cts != (UARTName)NC);
AnnaBridge 167:e84263d55307 704 obj_s->hw_flow_ctl = UART_HWCONTROL_CTS;
AnnaBridge 167:e84263d55307 705 obj_s->pin_cts = txflow;
AnnaBridge 167:e84263d55307 706 // Enable the pin for CTS function
AnnaBridge 167:e84263d55307 707 pinmap_pinout(txflow, PinMap_UART_CTS);
AnnaBridge 167:e84263d55307 708 }
AnnaBridge 167:e84263d55307 709 if (type == FlowControlRTSCTS) {
AnnaBridge 167:e84263d55307 710 // Enable CTS & RTS
AnnaBridge 167:e84263d55307 711 MBED_ASSERT(uart_rts != (UARTName)NC);
AnnaBridge 167:e84263d55307 712 MBED_ASSERT(uart_cts != (UARTName)NC);
AnnaBridge 167:e84263d55307 713 obj_s->hw_flow_ctl = UART_HWCONTROL_RTS_CTS;
AnnaBridge 167:e84263d55307 714 obj_s->pin_rts = rxflow;
AnnaBridge 167:e84263d55307 715 obj_s->pin_cts = txflow;
AnnaBridge 167:e84263d55307 716 // Enable the pin for CTS function
AnnaBridge 167:e84263d55307 717 pinmap_pinout(txflow, PinMap_UART_CTS);
AnnaBridge 167:e84263d55307 718 // Enable the pin for RTS function
AnnaBridge 167:e84263d55307 719 pinmap_pinout(rxflow, PinMap_UART_RTS);
AnnaBridge 167:e84263d55307 720 }
AnnaBridge 167:e84263d55307 721
AnnaBridge 167:e84263d55307 722 init_uart(obj);
AnnaBridge 167:e84263d55307 723 }
AnnaBridge 167:e84263d55307 724
Anna Bridge 180:96ed750bd169 725 #endif /* DEVICE_SERIAL_FC */
AnnaBridge 167:e84263d55307 726
Anna Bridge 180:96ed750bd169 727 #endif /* DEVICE_SERIAL */