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targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
55:814265bf5462
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 *******************************************************************************
bogdanm 0:9b334a45a8ff 3 * Copyright (c) 2015, STMicroelectronics
bogdanm 0:9b334a45a8ff 4 * All rights reserved.
bogdanm 0:9b334a45a8ff 5 *
bogdanm 0:9b334a45a8ff 6 * Redistribution and use in source and binary forms, with or without
bogdanm 0:9b334a45a8ff 7 * modification, are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 8 *
bogdanm 0:9b334a45a8ff 9 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 10 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 12 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 13 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 15 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 16 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 17 *
bogdanm 0:9b334a45a8ff 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 28 *******************************************************************************
bogdanm 0:9b334a45a8ff 29 */
bogdanm 0:9b334a45a8ff 30 #include "mbed_assert.h"
bogdanm 0:9b334a45a8ff 31 #include "serial_api.h"
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 #if DEVICE_SERIAL
bogdanm 0:9b334a45a8ff 34
bogdanm 0:9b334a45a8ff 35 #include "cmsis.h"
bogdanm 0:9b334a45a8ff 36 #include "pinmap.h"
bogdanm 0:9b334a45a8ff 37 #include <string.h>
bogdanm 0:9b334a45a8ff 38 #include "PeripheralPins.h"
bogdanm 0:9b334a45a8ff 39 #include "mbed_error.h"
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41 #define UART_NUM (8)
bogdanm 0:9b334a45a8ff 42
bogdanm 0:9b334a45a8ff 43 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0, 0, 0, 0};
bogdanm 0:9b334a45a8ff 44
bogdanm 0:9b334a45a8ff 45 static uart_irq_handler irq_handler;
bogdanm 0:9b334a45a8ff 46
bogdanm 0:9b334a45a8ff 47 UART_HandleTypeDef UartHandle;
bogdanm 0:9b334a45a8ff 48
bogdanm 0:9b334a45a8ff 49 int stdio_uart_inited = 0;
bogdanm 0:9b334a45a8ff 50 serial_t stdio_uart;
bogdanm 0:9b334a45a8ff 51
bogdanm 0:9b334a45a8ff 52 static void init_uart(serial_t *obj)
bogdanm 0:9b334a45a8ff 53 {
bogdanm 0:9b334a45a8ff 54 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 55
bogdanm 0:9b334a45a8ff 56 UartHandle.Init.BaudRate = obj->baudrate;
bogdanm 0:9b334a45a8ff 57 UartHandle.Init.WordLength = obj->databits;
bogdanm 0:9b334a45a8ff 58 UartHandle.Init.StopBits = obj->stopbits;
bogdanm 0:9b334a45a8ff 59 UartHandle.Init.Parity = obj->parity;
bogdanm 0:9b334a45a8ff 60 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
bogdanm 0:9b334a45a8ff 61
bogdanm 0:9b334a45a8ff 62 if (obj->pin_rx == NC) {
bogdanm 0:9b334a45a8ff 63 UartHandle.Init.Mode = UART_MODE_TX;
bogdanm 0:9b334a45a8ff 64 } else if (obj->pin_tx == NC) {
bogdanm 0:9b334a45a8ff 65 UartHandle.Init.Mode = UART_MODE_RX;
bogdanm 0:9b334a45a8ff 66 } else {
bogdanm 0:9b334a45a8ff 67 UartHandle.Init.Mode = UART_MODE_TX_RX;
bogdanm 0:9b334a45a8ff 68 }
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 if (HAL_UART_Init(&UartHandle) != HAL_OK) {
bogdanm 0:9b334a45a8ff 71 error("Cannot initialize UART");
bogdanm 0:9b334a45a8ff 72 }
bogdanm 0:9b334a45a8ff 73 }
bogdanm 0:9b334a45a8ff 74
bogdanm 0:9b334a45a8ff 75 void serial_init(serial_t *obj, PinName tx, PinName rx)
bogdanm 0:9b334a45a8ff 76 {
bogdanm 0:9b334a45a8ff 77 // Determine the UART to use (UART_1, UART_2, ...)
bogdanm 0:9b334a45a8ff 78 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
bogdanm 0:9b334a45a8ff 79 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
bogdanm 0:9b334a45a8ff 80
bogdanm 0:9b334a45a8ff 81 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
bogdanm 0:9b334a45a8ff 82 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
bogdanm 0:9b334a45a8ff 83 MBED_ASSERT(obj->uart != (UARTName)NC);
bogdanm 0:9b334a45a8ff 84
bogdanm 0:9b334a45a8ff 85 // Enable USART clock
bogdanm 0:9b334a45a8ff 86 switch (obj->uart) {
bogdanm 0:9b334a45a8ff 87 case UART_1:
bogdanm 0:9b334a45a8ff 88 __HAL_RCC_USART1_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 89 obj->index = 0;
bogdanm 0:9b334a45a8ff 90 break;
bogdanm 0:9b334a45a8ff 91 case UART_2:
bogdanm 0:9b334a45a8ff 92 __HAL_RCC_USART2_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 93 obj->index = 1;
bogdanm 0:9b334a45a8ff 94 break;
bogdanm 0:9b334a45a8ff 95 #if defined(USART3_BASE)
bogdanm 0:9b334a45a8ff 96 case UART_3:
bogdanm 0:9b334a45a8ff 97 __HAL_RCC_USART3_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 98 obj->index = 2;
bogdanm 0:9b334a45a8ff 99 break;
bogdanm 0:9b334a45a8ff 100 #endif
bogdanm 0:9b334a45a8ff 101 #if defined(UART4_BASE)
bogdanm 0:9b334a45a8ff 102 case UART_4:
bogdanm 0:9b334a45a8ff 103 __HAL_RCC_UART4_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 104 obj->index = 3;
bogdanm 0:9b334a45a8ff 105 break;
bogdanm 0:9b334a45a8ff 106 #endif
bogdanm 0:9b334a45a8ff 107 #if defined(UART5_BASE)
bogdanm 0:9b334a45a8ff 108 case UART_5:
bogdanm 0:9b334a45a8ff 109 __HAL_RCC_UART5_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 110 obj->index = 4;
bogdanm 0:9b334a45a8ff 111 break;
bogdanm 0:9b334a45a8ff 112 #endif
bogdanm 0:9b334a45a8ff 113 #if defined(USART6_BASE)
bogdanm 0:9b334a45a8ff 114 case UART_6:
bogdanm 0:9b334a45a8ff 115 __HAL_RCC_USART6_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 116 obj->index = 5;
bogdanm 0:9b334a45a8ff 117 break;
bogdanm 0:9b334a45a8ff 118 #endif
bogdanm 0:9b334a45a8ff 119 #if defined(UART7_BASE)
bogdanm 0:9b334a45a8ff 120 case UART_7:
bogdanm 0:9b334a45a8ff 121 __HAL_RCC_UART7_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 122 obj->index = 6;
bogdanm 0:9b334a45a8ff 123 break;
bogdanm 0:9b334a45a8ff 124 #endif
bogdanm 0:9b334a45a8ff 125 #if defined(UART8_BASE)
bogdanm 0:9b334a45a8ff 126 case UART_8:
bogdanm 0:9b334a45a8ff 127 __HAL_RCC_UART8_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 128 obj->index = 7;
bogdanm 0:9b334a45a8ff 129 break;
bogdanm 0:9b334a45a8ff 130 #endif
bogdanm 0:9b334a45a8ff 131 }
bogdanm 0:9b334a45a8ff 132
bogdanm 0:9b334a45a8ff 133 // Configure the UART pins
bogdanm 0:9b334a45a8ff 134 pinmap_pinout(tx, PinMap_UART_TX);
bogdanm 0:9b334a45a8ff 135 pinmap_pinout(rx, PinMap_UART_RX);
bogdanm 0:9b334a45a8ff 136 if (tx != NC) {
bogdanm 0:9b334a45a8ff 137 pin_mode(tx, PullUp);
bogdanm 0:9b334a45a8ff 138 }
bogdanm 0:9b334a45a8ff 139 if (rx != NC) {
bogdanm 0:9b334a45a8ff 140 pin_mode(rx, PullUp);
bogdanm 0:9b334a45a8ff 141 }
bogdanm 0:9b334a45a8ff 142
bogdanm 0:9b334a45a8ff 143 // Configure UART
bogdanm 0:9b334a45a8ff 144 obj->baudrate = 9600;
bogdanm 0:9b334a45a8ff 145 obj->databits = UART_WORDLENGTH_8B;
bogdanm 0:9b334a45a8ff 146 obj->stopbits = UART_STOPBITS_1;
bogdanm 0:9b334a45a8ff 147 obj->parity = UART_PARITY_NONE;
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 obj->pin_tx = tx;
bogdanm 0:9b334a45a8ff 150 obj->pin_rx = rx;
bogdanm 0:9b334a45a8ff 151
bogdanm 0:9b334a45a8ff 152 init_uart(obj);
bogdanm 0:9b334a45a8ff 153
bogdanm 0:9b334a45a8ff 154 // For stdio management
bogdanm 0:9b334a45a8ff 155 if (obj->uart == STDIO_UART) {
bogdanm 0:9b334a45a8ff 156 stdio_uart_inited = 1;
bogdanm 0:9b334a45a8ff 157 memcpy(&stdio_uart, obj, sizeof(serial_t));
bogdanm 0:9b334a45a8ff 158 }
bogdanm 0:9b334a45a8ff 159 }
bogdanm 0:9b334a45a8ff 160
bogdanm 0:9b334a45a8ff 161 void serial_free(serial_t *obj)
bogdanm 0:9b334a45a8ff 162 {
bogdanm 0:9b334a45a8ff 163 // Reset UART and disable clock
bogdanm 0:9b334a45a8ff 164 switch (obj->uart) {
bogdanm 0:9b334a45a8ff 165 case UART_1:
bogdanm 0:9b334a45a8ff 166 __USART1_FORCE_RESET();
bogdanm 0:9b334a45a8ff 167 __USART1_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 168 __USART1_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 169 break;
bogdanm 0:9b334a45a8ff 170 case UART_2:
bogdanm 0:9b334a45a8ff 171 __USART2_FORCE_RESET();
bogdanm 0:9b334a45a8ff 172 __USART2_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 173 __USART2_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 174 break;
bogdanm 0:9b334a45a8ff 175 #if defined(USART3_BASE)
bogdanm 0:9b334a45a8ff 176 case UART_3:
bogdanm 0:9b334a45a8ff 177 __USART3_FORCE_RESET();
bogdanm 0:9b334a45a8ff 178 __USART3_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 179 __USART3_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 180 break;
bogdanm 0:9b334a45a8ff 181 #endif
bogdanm 0:9b334a45a8ff 182 #if defined(UART4_BASE)
bogdanm 0:9b334a45a8ff 183 case UART_4:
bogdanm 0:9b334a45a8ff 184 __UART4_FORCE_RESET();
bogdanm 0:9b334a45a8ff 185 __UART4_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 186 __UART4_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 187 break;
bogdanm 0:9b334a45a8ff 188 #endif
bogdanm 0:9b334a45a8ff 189 #if defined(UART5_BASE)
bogdanm 0:9b334a45a8ff 190 case UART_5:
bogdanm 0:9b334a45a8ff 191 __UART5_FORCE_RESET();
bogdanm 0:9b334a45a8ff 192 __UART5_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 193 __UART5_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 194 break;
bogdanm 0:9b334a45a8ff 195 #endif
bogdanm 0:9b334a45a8ff 196 #if defined(USART6_BASE)
bogdanm 0:9b334a45a8ff 197 case UART_6:
bogdanm 0:9b334a45a8ff 198 __USART6_FORCE_RESET();
bogdanm 0:9b334a45a8ff 199 __USART6_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 200 __USART6_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 201 break;
bogdanm 0:9b334a45a8ff 202 #endif
bogdanm 0:9b334a45a8ff 203 #if defined(UART7_BASE)
bogdanm 0:9b334a45a8ff 204 case UART_7:
bogdanm 0:9b334a45a8ff 205 __UART7_FORCE_RESET();
bogdanm 0:9b334a45a8ff 206 __UART7_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 207 __UART7_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 208 break;
bogdanm 0:9b334a45a8ff 209 #endif
bogdanm 0:9b334a45a8ff 210 #if defined(UART8_BASE)
bogdanm 0:9b334a45a8ff 211 case UART_8:
bogdanm 0:9b334a45a8ff 212 __UART8_FORCE_RESET();
bogdanm 0:9b334a45a8ff 213 __UART8_RELEASE_RESET();
bogdanm 0:9b334a45a8ff 214 __UART8_CLK_DISABLE();
bogdanm 0:9b334a45a8ff 215 break;
bogdanm 0:9b334a45a8ff 216 #endif
bogdanm 0:9b334a45a8ff 217 }
bogdanm 0:9b334a45a8ff 218 // Configure GPIOs
bogdanm 0:9b334a45a8ff 219 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
bogdanm 0:9b334a45a8ff 220 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
bogdanm 0:9b334a45a8ff 221
bogdanm 0:9b334a45a8ff 222 serial_irq_ids[obj->index] = 0;
bogdanm 0:9b334a45a8ff 223 }
bogdanm 0:9b334a45a8ff 224
bogdanm 0:9b334a45a8ff 225 void serial_baud(serial_t *obj, int baudrate)
bogdanm 0:9b334a45a8ff 226 {
bogdanm 0:9b334a45a8ff 227 obj->baudrate = baudrate;
bogdanm 0:9b334a45a8ff 228 init_uart(obj);
bogdanm 0:9b334a45a8ff 229 }
bogdanm 0:9b334a45a8ff 230
bogdanm 0:9b334a45a8ff 231 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
bogdanm 0:9b334a45a8ff 232 {
bogdanm 0:9b334a45a8ff 233 if (data_bits == 9) {
bogdanm 0:9b334a45a8ff 234 obj->databits = UART_WORDLENGTH_9B;
bogdanm 0:9b334a45a8ff 235 } else {
bogdanm 0:9b334a45a8ff 236 obj->databits = UART_WORDLENGTH_8B;
bogdanm 0:9b334a45a8ff 237 }
bogdanm 0:9b334a45a8ff 238
bogdanm 0:9b334a45a8ff 239 switch (parity) {
bogdanm 0:9b334a45a8ff 240 case ParityOdd:
bogdanm 0:9b334a45a8ff 241 case ParityForced0:
bogdanm 0:9b334a45a8ff 242 obj->parity = UART_PARITY_ODD;
bogdanm 0:9b334a45a8ff 243 break;
bogdanm 0:9b334a45a8ff 244 case ParityEven:
bogdanm 0:9b334a45a8ff 245 case ParityForced1:
bogdanm 0:9b334a45a8ff 246 obj->parity = UART_PARITY_EVEN;
bogdanm 0:9b334a45a8ff 247 break;
bogdanm 0:9b334a45a8ff 248 default: // ParityNone
bogdanm 0:9b334a45a8ff 249 obj->parity = UART_PARITY_NONE;
bogdanm 0:9b334a45a8ff 250 break;
bogdanm 0:9b334a45a8ff 251 }
bogdanm 0:9b334a45a8ff 252
bogdanm 0:9b334a45a8ff 253 if (stop_bits == 2) {
bogdanm 0:9b334a45a8ff 254 obj->stopbits = UART_STOPBITS_2;
bogdanm 0:9b334a45a8ff 255 } else {
bogdanm 0:9b334a45a8ff 256 obj->stopbits = UART_STOPBITS_1;
bogdanm 0:9b334a45a8ff 257 }
bogdanm 0:9b334a45a8ff 258
bogdanm 0:9b334a45a8ff 259 init_uart(obj);
bogdanm 0:9b334a45a8ff 260 }
bogdanm 0:9b334a45a8ff 261
bogdanm 0:9b334a45a8ff 262 /******************************************************************************
bogdanm 0:9b334a45a8ff 263 * INTERRUPTS HANDLING
bogdanm 0:9b334a45a8ff 264 ******************************************************************************/
bogdanm 0:9b334a45a8ff 265
bogdanm 0:9b334a45a8ff 266 static void uart_irq(UARTName name, int id)
bogdanm 0:9b334a45a8ff 267 {
bogdanm 0:9b334a45a8ff 268 UartHandle.Instance = (USART_TypeDef *)name;
bogdanm 0:9b334a45a8ff 269 if (serial_irq_ids[id] != 0) {
bogdanm 0:9b334a45a8ff 270 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
bogdanm 0:9b334a45a8ff 271 irq_handler(serial_irq_ids[id], TxIrq);
bogdanm 0:9b334a45a8ff 272 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
bogdanm 0:9b334a45a8ff 273 }
bogdanm 0:9b334a45a8ff 274 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
bogdanm 0:9b334a45a8ff 275 irq_handler(serial_irq_ids[id], RxIrq);
bogdanm 0:9b334a45a8ff 276 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
bogdanm 0:9b334a45a8ff 277 }
bogdanm 0:9b334a45a8ff 278 }
bogdanm 0:9b334a45a8ff 279 }
bogdanm 0:9b334a45a8ff 280
bogdanm 0:9b334a45a8ff 281 static void uart1_irq(void)
bogdanm 0:9b334a45a8ff 282 {
bogdanm 0:9b334a45a8ff 283 uart_irq(UART_1, 0);
bogdanm 0:9b334a45a8ff 284 }
bogdanm 0:9b334a45a8ff 285
bogdanm 0:9b334a45a8ff 286 static void uart2_irq(void)
bogdanm 0:9b334a45a8ff 287 {
bogdanm 0:9b334a45a8ff 288 uart_irq(UART_2, 1);
bogdanm 0:9b334a45a8ff 289 }
bogdanm 0:9b334a45a8ff 290
bogdanm 0:9b334a45a8ff 291 #if defined(USART3_BASE)
bogdanm 0:9b334a45a8ff 292 static void uart3_irq(void)
bogdanm 0:9b334a45a8ff 293 {
bogdanm 0:9b334a45a8ff 294 uart_irq(UART_3, 2);
bogdanm 0:9b334a45a8ff 295 }
bogdanm 0:9b334a45a8ff 296 #endif
bogdanm 0:9b334a45a8ff 297
bogdanm 0:9b334a45a8ff 298 #if defined(UART4_BASE)
bogdanm 0:9b334a45a8ff 299 static void uart4_irq(void)
bogdanm 0:9b334a45a8ff 300 {
bogdanm 0:9b334a45a8ff 301 uart_irq(UART_4, 3);
bogdanm 0:9b334a45a8ff 302 }
bogdanm 0:9b334a45a8ff 303 #endif
bogdanm 0:9b334a45a8ff 304
bogdanm 0:9b334a45a8ff 305 #if defined(UART5_BASE)
bogdanm 0:9b334a45a8ff 306 static void uart5_irq(void)
bogdanm 0:9b334a45a8ff 307 {
bogdanm 0:9b334a45a8ff 308 uart_irq(UART_5, 4);
bogdanm 0:9b334a45a8ff 309 }
bogdanm 0:9b334a45a8ff 310 #endif
bogdanm 0:9b334a45a8ff 311
bogdanm 0:9b334a45a8ff 312 #if defined(USART6_BASE)
bogdanm 0:9b334a45a8ff 313 static void uart6_irq(void)
bogdanm 0:9b334a45a8ff 314 {
bogdanm 0:9b334a45a8ff 315 uart_irq(UART_6, 5);
bogdanm 0:9b334a45a8ff 316 }
bogdanm 0:9b334a45a8ff 317 #endif
bogdanm 0:9b334a45a8ff 318
bogdanm 0:9b334a45a8ff 319 #if defined(UART7_BASE)
bogdanm 0:9b334a45a8ff 320 static void uart7_irq(void)
bogdanm 0:9b334a45a8ff 321 {
bogdanm 0:9b334a45a8ff 322 uart_irq(UART_7, 6);
bogdanm 0:9b334a45a8ff 323 }
bogdanm 0:9b334a45a8ff 324 #endif
bogdanm 0:9b334a45a8ff 325
bogdanm 0:9b334a45a8ff 326 #if defined(UART8_BASE)
bogdanm 0:9b334a45a8ff 327 static void uart8_irq(void)
bogdanm 0:9b334a45a8ff 328 {
bogdanm 0:9b334a45a8ff 329 uart_irq(UART_8, 7);
bogdanm 0:9b334a45a8ff 330 }
bogdanm 0:9b334a45a8ff 331 #endif
bogdanm 0:9b334a45a8ff 332
bogdanm 0:9b334a45a8ff 333 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
bogdanm 0:9b334a45a8ff 334 {
bogdanm 0:9b334a45a8ff 335 irq_handler = handler;
bogdanm 0:9b334a45a8ff 336 serial_irq_ids[obj->index] = id;
bogdanm 0:9b334a45a8ff 337 }
bogdanm 0:9b334a45a8ff 338
bogdanm 0:9b334a45a8ff 339 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
bogdanm 0:9b334a45a8ff 340 {
bogdanm 0:9b334a45a8ff 341 IRQn_Type irq_n = (IRQn_Type)0;
bogdanm 0:9b334a45a8ff 342 uint32_t vector = 0;
bogdanm 0:9b334a45a8ff 343
bogdanm 0:9b334a45a8ff 344 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 345
bogdanm 0:9b334a45a8ff 346 switch (obj->uart) {
bogdanm 0:9b334a45a8ff 347 case UART_1:
bogdanm 0:9b334a45a8ff 348 irq_n = USART1_IRQn;
bogdanm 0:9b334a45a8ff 349 vector = (uint32_t)&uart1_irq;
bogdanm 0:9b334a45a8ff 350 break;
bogdanm 0:9b334a45a8ff 351
bogdanm 0:9b334a45a8ff 352 case UART_2:
bogdanm 0:9b334a45a8ff 353 irq_n = USART2_IRQn;
bogdanm 0:9b334a45a8ff 354 vector = (uint32_t)&uart2_irq;
bogdanm 0:9b334a45a8ff 355 break;
bogdanm 0:9b334a45a8ff 356 #if defined(USART3_BASE)
bogdanm 0:9b334a45a8ff 357 case UART_3:
bogdanm 0:9b334a45a8ff 358 irq_n = USART3_IRQn;
bogdanm 0:9b334a45a8ff 359 vector = (uint32_t)&uart3_irq;
bogdanm 0:9b334a45a8ff 360 break;
bogdanm 0:9b334a45a8ff 361 #endif
bogdanm 0:9b334a45a8ff 362 #if defined(UART4_BASE)
bogdanm 0:9b334a45a8ff 363 case UART_4:
bogdanm 0:9b334a45a8ff 364 irq_n = UART4_IRQn;
bogdanm 0:9b334a45a8ff 365 vector = (uint32_t)&uart4_irq;
bogdanm 0:9b334a45a8ff 366 break;
bogdanm 0:9b334a45a8ff 367 #endif
bogdanm 0:9b334a45a8ff 368 #if defined(UART5_BASE)
bogdanm 0:9b334a45a8ff 369 case UART_5:
bogdanm 0:9b334a45a8ff 370 irq_n = UART5_IRQn;
bogdanm 0:9b334a45a8ff 371 vector = (uint32_t)&uart5_irq;
bogdanm 0:9b334a45a8ff 372 break;
bogdanm 0:9b334a45a8ff 373 #endif
bogdanm 0:9b334a45a8ff 374 #if defined(USART6_BASE)
bogdanm 0:9b334a45a8ff 375 case UART_6:
bogdanm 0:9b334a45a8ff 376 irq_n = USART6_IRQn;
bogdanm 0:9b334a45a8ff 377 vector = (uint32_t)&uart6_irq;
bogdanm 0:9b334a45a8ff 378 break;
bogdanm 0:9b334a45a8ff 379 #endif
bogdanm 0:9b334a45a8ff 380 #if defined(UART7_BASE)
bogdanm 0:9b334a45a8ff 381 case UART_7:
bogdanm 0:9b334a45a8ff 382 irq_n = UART7_IRQn;
bogdanm 0:9b334a45a8ff 383 vector = (uint32_t)&uart7_irq;
bogdanm 0:9b334a45a8ff 384 break;
bogdanm 0:9b334a45a8ff 385 #endif
bogdanm 0:9b334a45a8ff 386 #if defined(UART8_BASE)
bogdanm 0:9b334a45a8ff 387 case UART_8:
bogdanm 0:9b334a45a8ff 388 irq_n = UART8_IRQn;
bogdanm 0:9b334a45a8ff 389 vector = (uint32_t)&uart8_irq;
bogdanm 0:9b334a45a8ff 390 break;
bogdanm 0:9b334a45a8ff 391 #endif
bogdanm 0:9b334a45a8ff 392 }
bogdanm 0:9b334a45a8ff 393
bogdanm 0:9b334a45a8ff 394 if (enable) {
bogdanm 0:9b334a45a8ff 395
bogdanm 0:9b334a45a8ff 396 if (irq == RxIrq) {
bogdanm 0:9b334a45a8ff 397 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
bogdanm 0:9b334a45a8ff 398 } else { // TxIrq
bogdanm 0:9b334a45a8ff 399 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
bogdanm 0:9b334a45a8ff 400 }
bogdanm 0:9b334a45a8ff 401
bogdanm 0:9b334a45a8ff 402 NVIC_SetVector(irq_n, vector);
bogdanm 0:9b334a45a8ff 403 NVIC_EnableIRQ(irq_n);
bogdanm 0:9b334a45a8ff 404
bogdanm 0:9b334a45a8ff 405 } else { // disable
bogdanm 0:9b334a45a8ff 406
bogdanm 0:9b334a45a8ff 407 int all_disabled = 0;
bogdanm 0:9b334a45a8ff 408
bogdanm 0:9b334a45a8ff 409 if (irq == RxIrq) {
bogdanm 0:9b334a45a8ff 410 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
bogdanm 0:9b334a45a8ff 411 // Check if TxIrq is disabled too
bogdanm 0:9b334a45a8ff 412 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
bogdanm 0:9b334a45a8ff 413 } else { // TxIrq
bogdanm 0:9b334a45a8ff 414 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
bogdanm 0:9b334a45a8ff 415 // Check if RxIrq is disabled too
bogdanm 0:9b334a45a8ff 416 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
bogdanm 0:9b334a45a8ff 417 }
bogdanm 0:9b334a45a8ff 418
bogdanm 0:9b334a45a8ff 419 if (all_disabled) NVIC_DisableIRQ(irq_n);
bogdanm 0:9b334a45a8ff 420
bogdanm 0:9b334a45a8ff 421 }
bogdanm 0:9b334a45a8ff 422 }
bogdanm 0:9b334a45a8ff 423
bogdanm 0:9b334a45a8ff 424 /******************************************************************************
bogdanm 0:9b334a45a8ff 425 * READ/WRITE
bogdanm 0:9b334a45a8ff 426 ******************************************************************************/
bogdanm 0:9b334a45a8ff 427
bogdanm 0:9b334a45a8ff 428 int serial_getc(serial_t *obj)
bogdanm 0:9b334a45a8ff 429 {
bogdanm 0:9b334a45a8ff 430 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 431 while (!serial_readable(obj));
bogdanm 0:9b334a45a8ff 432 return (int)(uart->DR & 0x1FF);
bogdanm 0:9b334a45a8ff 433 }
bogdanm 0:9b334a45a8ff 434
bogdanm 0:9b334a45a8ff 435 void serial_putc(serial_t *obj, int c)
bogdanm 0:9b334a45a8ff 436 {
bogdanm 0:9b334a45a8ff 437 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 438 while (!serial_writable(obj));
bogdanm 0:9b334a45a8ff 439 uart->DR = (uint32_t)(c & 0x1FF);
bogdanm 0:9b334a45a8ff 440 }
bogdanm 0:9b334a45a8ff 441
bogdanm 0:9b334a45a8ff 442 int serial_readable(serial_t *obj)
bogdanm 0:9b334a45a8ff 443 {
bogdanm 0:9b334a45a8ff 444 int status;
bogdanm 0:9b334a45a8ff 445 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 446 // Check if data is received
bogdanm 0:9b334a45a8ff 447 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
bogdanm 0:9b334a45a8ff 448 return status;
bogdanm 0:9b334a45a8ff 449 }
bogdanm 0:9b334a45a8ff 450
bogdanm 0:9b334a45a8ff 451 int serial_writable(serial_t *obj)
bogdanm 0:9b334a45a8ff 452 {
bogdanm 0:9b334a45a8ff 453 int status;
bogdanm 0:9b334a45a8ff 454 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 455 // Check if data is transmitted
bogdanm 0:9b334a45a8ff 456 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
bogdanm 0:9b334a45a8ff 457 return status;
bogdanm 0:9b334a45a8ff 458 }
bogdanm 0:9b334a45a8ff 459
bogdanm 0:9b334a45a8ff 460 void serial_clear(serial_t *obj)
bogdanm 0:9b334a45a8ff 461 {
bogdanm 0:9b334a45a8ff 462 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 463 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
bogdanm 0:9b334a45a8ff 464 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
bogdanm 0:9b334a45a8ff 465 }
bogdanm 0:9b334a45a8ff 466
bogdanm 0:9b334a45a8ff 467 void serial_pinout_tx(PinName tx)
bogdanm 0:9b334a45a8ff 468 {
bogdanm 0:9b334a45a8ff 469 pinmap_pinout(tx, PinMap_UART_TX);
bogdanm 0:9b334a45a8ff 470 }
bogdanm 0:9b334a45a8ff 471
bogdanm 0:9b334a45a8ff 472 void serial_break_set(serial_t *obj)
bogdanm 0:9b334a45a8ff 473 {
bogdanm 0:9b334a45a8ff 474 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 475 HAL_LIN_SendBreak(&UartHandle);
bogdanm 0:9b334a45a8ff 476 }
bogdanm 0:9b334a45a8ff 477
bogdanm 0:9b334a45a8ff 478 void serial_break_clear(serial_t *obj)
bogdanm 0:9b334a45a8ff 479 {
bogdanm 0:9b334a45a8ff 480 }
bogdanm 0:9b334a45a8ff 481
bogdanm 0:9b334a45a8ff 482 #endif