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targets/hal/TARGET_STM/TARGET_STM32F0/serial_api.c@469:fc4922e0c183, 2015-02-09 (annotated)

Committer:
mbed_official
Date:
Mon Feb 09 09:30:07 2015 +0000
Revision:
469:fc4922e0c183
Child:
630:825f75ca301e
Synchronized with git revision 06e2b3c8802cb4f78e9958ba9923755bd458e8b7



Full URL: https://github.com/mbedmicro/mbed/commit/06e2b3c8802cb4f78e9958ba9923755bd458e8b7/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 469:fc4922e0c183 1 /* mbed Microcontroller Library
mbed_official 469:fc4922e0c183 2 *******************************************************************************
mbed_official 469:fc4922e0c183 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 469:fc4922e0c183 4 * All rights reserved.
mbed_official 469:fc4922e0c183 5 *
mbed_official 469:fc4922e0c183 6 * Redistribution and use in source and binary forms, with or without
mbed_official 469:fc4922e0c183 7 * modification, are permitted provided that the following conditions are met:
mbed_official 469:fc4922e0c183 8 *
mbed_official 469:fc4922e0c183 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 469:fc4922e0c183 10 * this list of conditions and the following disclaimer.
mbed_official 469:fc4922e0c183 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 469:fc4922e0c183 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 469:fc4922e0c183 13 * and/or other materials provided with the distribution.
mbed_official 469:fc4922e0c183 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 469:fc4922e0c183 15 * may be used to endorse or promote products derived from this software
mbed_official 469:fc4922e0c183 16 * without specific prior written permission.
mbed_official 469:fc4922e0c183 17 *
mbed_official 469:fc4922e0c183 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 469:fc4922e0c183 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 469:fc4922e0c183 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 469:fc4922e0c183 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 469:fc4922e0c183 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 469:fc4922e0c183 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 469:fc4922e0c183 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 469:fc4922e0c183 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 469:fc4922e0c183 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 469:fc4922e0c183 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 469:fc4922e0c183 28 *******************************************************************************
mbed_official 469:fc4922e0c183 29 */
mbed_official 469:fc4922e0c183 30 #include "mbed_assert.h"
mbed_official 469:fc4922e0c183 31 #include "serial_api.h"
mbed_official 469:fc4922e0c183 32
mbed_official 469:fc4922e0c183 33 #if DEVICE_SERIAL
mbed_official 469:fc4922e0c183 34
mbed_official 469:fc4922e0c183 35 #include "cmsis.h"
mbed_official 469:fc4922e0c183 36 #include "pinmap.h"
mbed_official 469:fc4922e0c183 37 #include <string.h>
mbed_official 469:fc4922e0c183 38 #include "PeripheralPins.h"
mbed_official 469:fc4922e0c183 39
mbed_official 469:fc4922e0c183 40 #if defined (TARGET_STM32F091RC)
mbed_official 469:fc4922e0c183 41 #define UART_NUM (8)
mbed_official 469:fc4922e0c183 42
mbed_official 469:fc4922e0c183 43 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0, 0, 0, 0};
mbed_official 469:fc4922e0c183 44
mbed_official 469:fc4922e0c183 45 #elif defined (TARGET_STM32F030R8) || defined (TARGET_STM32F051R8)
mbed_official 469:fc4922e0c183 46 #define UART_NUM (2)
mbed_official 469:fc4922e0c183 47
mbed_official 469:fc4922e0c183 48 static uint32_t serial_irq_ids[UART_NUM] = {0, 0};
mbed_official 469:fc4922e0c183 49
mbed_official 469:fc4922e0c183 50 #else
mbed_official 469:fc4922e0c183 51 #define UART_NUM (4)
mbed_official 469:fc4922e0c183 52
mbed_official 469:fc4922e0c183 53 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0};
mbed_official 469:fc4922e0c183 54
mbed_official 469:fc4922e0c183 55 #endif
mbed_official 469:fc4922e0c183 56
mbed_official 469:fc4922e0c183 57 static uart_irq_handler irq_handler;
mbed_official 469:fc4922e0c183 58
mbed_official 469:fc4922e0c183 59 UART_HandleTypeDef UartHandle;
mbed_official 469:fc4922e0c183 60
mbed_official 469:fc4922e0c183 61 int stdio_uart_inited = 0;
mbed_official 469:fc4922e0c183 62 serial_t stdio_uart;
mbed_official 469:fc4922e0c183 63
mbed_official 469:fc4922e0c183 64 static void init_uart(serial_t *obj)
mbed_official 469:fc4922e0c183 65 {
mbed_official 469:fc4922e0c183 66 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 67
mbed_official 469:fc4922e0c183 68 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 469:fc4922e0c183 69 UartHandle.Init.WordLength = obj->databits;
mbed_official 469:fc4922e0c183 70 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 469:fc4922e0c183 71 UartHandle.Init.Parity = obj->parity;
mbed_official 469:fc4922e0c183 72 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 469:fc4922e0c183 73
mbed_official 469:fc4922e0c183 74 if (obj->pin_rx == NC) {
mbed_official 469:fc4922e0c183 75 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 469:fc4922e0c183 76 } else if (obj->pin_tx == NC) {
mbed_official 469:fc4922e0c183 77 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 469:fc4922e0c183 78 } else {
mbed_official 469:fc4922e0c183 79 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 469:fc4922e0c183 80 }
mbed_official 469:fc4922e0c183 81
mbed_official 469:fc4922e0c183 82 // Disable the reception overrun detection
mbed_official 469:fc4922e0c183 83 UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
mbed_official 469:fc4922e0c183 84 UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
mbed_official 469:fc4922e0c183 85
mbed_official 469:fc4922e0c183 86 HAL_UART_Init(&UartHandle);
mbed_official 469:fc4922e0c183 87 }
mbed_official 469:fc4922e0c183 88
mbed_official 469:fc4922e0c183 89 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 469:fc4922e0c183 90 {
mbed_official 469:fc4922e0c183 91 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 469:fc4922e0c183 92 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 469:fc4922e0c183 93 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 469:fc4922e0c183 94
mbed_official 469:fc4922e0c183 95 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 469:fc4922e0c183 96 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 469:fc4922e0c183 97 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 469:fc4922e0c183 98
mbed_official 469:fc4922e0c183 99 // Enable USART clock
mbed_official 469:fc4922e0c183 100 if (obj->uart == UART_1) {
mbed_official 469:fc4922e0c183 101 __USART1_CLK_ENABLE();
mbed_official 469:fc4922e0c183 102 obj->index = 0;
mbed_official 469:fc4922e0c183 103 }
mbed_official 469:fc4922e0c183 104
mbed_official 469:fc4922e0c183 105 if (obj->uart == UART_2) {
mbed_official 469:fc4922e0c183 106 __USART2_CLK_ENABLE();
mbed_official 469:fc4922e0c183 107 obj->index = 1;
mbed_official 469:fc4922e0c183 108 }
mbed_official 469:fc4922e0c183 109
mbed_official 469:fc4922e0c183 110 #if defined USART3_BASE
mbed_official 469:fc4922e0c183 111 if (obj->uart == UART_3) {
mbed_official 469:fc4922e0c183 112 __USART3_CLK_ENABLE();
mbed_official 469:fc4922e0c183 113 obj->index = 2;
mbed_official 469:fc4922e0c183 114 }
mbed_official 469:fc4922e0c183 115 #endif
mbed_official 469:fc4922e0c183 116
mbed_official 469:fc4922e0c183 117 #if defined USART4_BASE
mbed_official 469:fc4922e0c183 118 if (obj->uart == UART_4) {
mbed_official 469:fc4922e0c183 119 __USART4_CLK_ENABLE();
mbed_official 469:fc4922e0c183 120 obj->index = 3;
mbed_official 469:fc4922e0c183 121 }
mbed_official 469:fc4922e0c183 122 #endif
mbed_official 469:fc4922e0c183 123
mbed_official 469:fc4922e0c183 124 #if defined USART5_BASE
mbed_official 469:fc4922e0c183 125 if (obj->uart == UART_5) {
mbed_official 469:fc4922e0c183 126 __USART5_CLK_ENABLE();
mbed_official 469:fc4922e0c183 127 obj->index = 4;
mbed_official 469:fc4922e0c183 128 }
mbed_official 469:fc4922e0c183 129 #endif
mbed_official 469:fc4922e0c183 130
mbed_official 469:fc4922e0c183 131 #if defined USART6_BASE
mbed_official 469:fc4922e0c183 132 if (obj->uart == UART_6) {
mbed_official 469:fc4922e0c183 133 __USART6_CLK_ENABLE();
mbed_official 469:fc4922e0c183 134 obj->index = 5;
mbed_official 469:fc4922e0c183 135 }
mbed_official 469:fc4922e0c183 136 #endif
mbed_official 469:fc4922e0c183 137
mbed_official 469:fc4922e0c183 138 #if defined USART7_BASE
mbed_official 469:fc4922e0c183 139 if (obj->uart == UART_7) {
mbed_official 469:fc4922e0c183 140 __USART7_CLK_ENABLE();
mbed_official 469:fc4922e0c183 141 obj->index = 6;
mbed_official 469:fc4922e0c183 142 }
mbed_official 469:fc4922e0c183 143 #endif
mbed_official 469:fc4922e0c183 144
mbed_official 469:fc4922e0c183 145 #if defined USART8_BASE
mbed_official 469:fc4922e0c183 146 if (obj->uart == UART_8) {
mbed_official 469:fc4922e0c183 147 __USART8_CLK_ENABLE();
mbed_official 469:fc4922e0c183 148 obj->index = 7;
mbed_official 469:fc4922e0c183 149 }
mbed_official 469:fc4922e0c183 150 #endif
mbed_official 469:fc4922e0c183 151
mbed_official 469:fc4922e0c183 152 // Configure the UART pins
mbed_official 469:fc4922e0c183 153 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 469:fc4922e0c183 154 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 469:fc4922e0c183 155 if (tx != NC) {
mbed_official 469:fc4922e0c183 156 pin_mode(tx, PullUp);
mbed_official 469:fc4922e0c183 157 }
mbed_official 469:fc4922e0c183 158 if (rx != NC) {
mbed_official 469:fc4922e0c183 159 pin_mode(rx, PullUp);
mbed_official 469:fc4922e0c183 160 }
mbed_official 469:fc4922e0c183 161
mbed_official 469:fc4922e0c183 162 // Configure UART
mbed_official 469:fc4922e0c183 163 obj->baudrate = 9600;
mbed_official 469:fc4922e0c183 164 obj->databits = UART_WORDLENGTH_8B;
mbed_official 469:fc4922e0c183 165 obj->stopbits = UART_STOPBITS_1;
mbed_official 469:fc4922e0c183 166 obj->parity = UART_PARITY_NONE;
mbed_official 469:fc4922e0c183 167
mbed_official 469:fc4922e0c183 168 obj->pin_tx = tx;
mbed_official 469:fc4922e0c183 169 obj->pin_rx = rx;
mbed_official 469:fc4922e0c183 170
mbed_official 469:fc4922e0c183 171 init_uart(obj);
mbed_official 469:fc4922e0c183 172
mbed_official 469:fc4922e0c183 173 // For stdio management
mbed_official 469:fc4922e0c183 174 if (obj->uart == STDIO_UART) {
mbed_official 469:fc4922e0c183 175 stdio_uart_inited = 1;
mbed_official 469:fc4922e0c183 176 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 469:fc4922e0c183 177 }
mbed_official 469:fc4922e0c183 178 }
mbed_official 469:fc4922e0c183 179
mbed_official 469:fc4922e0c183 180 void serial_free(serial_t *obj)
mbed_official 469:fc4922e0c183 181 {
mbed_official 469:fc4922e0c183 182 // Reset UART and disable clock
mbed_official 469:fc4922e0c183 183 if (obj->uart == UART_1) {
mbed_official 469:fc4922e0c183 184 __USART1_FORCE_RESET();
mbed_official 469:fc4922e0c183 185 __USART1_RELEASE_RESET();
mbed_official 469:fc4922e0c183 186 __USART1_CLK_DISABLE();
mbed_official 469:fc4922e0c183 187 }
mbed_official 469:fc4922e0c183 188
mbed_official 469:fc4922e0c183 189 if (obj->uart == UART_2) {
mbed_official 469:fc4922e0c183 190 __USART2_FORCE_RESET();
mbed_official 469:fc4922e0c183 191 __USART2_RELEASE_RESET();
mbed_official 469:fc4922e0c183 192 __USART2_CLK_DISABLE();
mbed_official 469:fc4922e0c183 193 }
mbed_official 469:fc4922e0c183 194
mbed_official 469:fc4922e0c183 195 #if defined USART3_BASE
mbed_official 469:fc4922e0c183 196 if (obj->uart == UART_3) {
mbed_official 469:fc4922e0c183 197 __USART3_FORCE_RESET();
mbed_official 469:fc4922e0c183 198 __USART3_RELEASE_RESET();
mbed_official 469:fc4922e0c183 199 __USART3_CLK_DISABLE();
mbed_official 469:fc4922e0c183 200 }
mbed_official 469:fc4922e0c183 201 #endif
mbed_official 469:fc4922e0c183 202
mbed_official 469:fc4922e0c183 203 #if defined USART4_BASE
mbed_official 469:fc4922e0c183 204 if (obj->uart == UART_4) {
mbed_official 469:fc4922e0c183 205 __USART4_FORCE_RESET();
mbed_official 469:fc4922e0c183 206 __USART4_RELEASE_RESET();
mbed_official 469:fc4922e0c183 207 __USART4_CLK_DISABLE();
mbed_official 469:fc4922e0c183 208 }
mbed_official 469:fc4922e0c183 209 #endif
mbed_official 469:fc4922e0c183 210
mbed_official 469:fc4922e0c183 211 #if defined USART5_BASE
mbed_official 469:fc4922e0c183 212 if (obj->uart == UART_5) {
mbed_official 469:fc4922e0c183 213 __USART5_FORCE_RESET();
mbed_official 469:fc4922e0c183 214 __USART5_RELEASE_RESET();
mbed_official 469:fc4922e0c183 215 __USART5_CLK_DISABLE();
mbed_official 469:fc4922e0c183 216 }
mbed_official 469:fc4922e0c183 217 #endif
mbed_official 469:fc4922e0c183 218
mbed_official 469:fc4922e0c183 219 #if defined USART6_BASE
mbed_official 469:fc4922e0c183 220 if (obj->uart == UART_6) {
mbed_official 469:fc4922e0c183 221 __USART6_FORCE_RESET();
mbed_official 469:fc4922e0c183 222 __USART6_RELEASE_RESET();
mbed_official 469:fc4922e0c183 223 __USART6_CLK_DISABLE();
mbed_official 469:fc4922e0c183 224 }
mbed_official 469:fc4922e0c183 225 #endif
mbed_official 469:fc4922e0c183 226
mbed_official 469:fc4922e0c183 227 #if defined USART7_BASE
mbed_official 469:fc4922e0c183 228 if (obj->uart == UART_7) {
mbed_official 469:fc4922e0c183 229 __USART7_FORCE_RESET();
mbed_official 469:fc4922e0c183 230 __USART7_RELEASE_RESET();
mbed_official 469:fc4922e0c183 231 __USART7_CLK_DISABLE();
mbed_official 469:fc4922e0c183 232 }
mbed_official 469:fc4922e0c183 233 #endif
mbed_official 469:fc4922e0c183 234
mbed_official 469:fc4922e0c183 235 #if defined USART8_BASE
mbed_official 469:fc4922e0c183 236 if (obj->uart == UART_8) {
mbed_official 469:fc4922e0c183 237 __USART8_FORCE_RESET();
mbed_official 469:fc4922e0c183 238 __USART8_RELEASE_RESET();
mbed_official 469:fc4922e0c183 239 __USART8_CLK_DISABLE();
mbed_official 469:fc4922e0c183 240 }
mbed_official 469:fc4922e0c183 241 #endif
mbed_official 469:fc4922e0c183 242
mbed_official 469:fc4922e0c183 243
mbed_official 469:fc4922e0c183 244 // Configure GPIOs
mbed_official 469:fc4922e0c183 245 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 469:fc4922e0c183 246 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 469:fc4922e0c183 247
mbed_official 469:fc4922e0c183 248 serial_irq_ids[obj->index] = 0;
mbed_official 469:fc4922e0c183 249 }
mbed_official 469:fc4922e0c183 250
mbed_official 469:fc4922e0c183 251 void serial_baud(serial_t *obj, int baudrate)
mbed_official 469:fc4922e0c183 252 {
mbed_official 469:fc4922e0c183 253 obj->baudrate = baudrate;
mbed_official 469:fc4922e0c183 254 init_uart(obj);
mbed_official 469:fc4922e0c183 255 }
mbed_official 469:fc4922e0c183 256
mbed_official 469:fc4922e0c183 257 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 469:fc4922e0c183 258 {
mbed_official 469:fc4922e0c183 259 if (data_bits == 9) {
mbed_official 469:fc4922e0c183 260 obj->databits = UART_WORDLENGTH_9B;
mbed_official 469:fc4922e0c183 261 } else {
mbed_official 469:fc4922e0c183 262 obj->databits = UART_WORDLENGTH_8B;
mbed_official 469:fc4922e0c183 263 }
mbed_official 469:fc4922e0c183 264
mbed_official 469:fc4922e0c183 265 switch (parity) {
mbed_official 469:fc4922e0c183 266 case ParityOdd:
mbed_official 469:fc4922e0c183 267 case ParityForced0:
mbed_official 469:fc4922e0c183 268 obj->parity = UART_PARITY_ODD;
mbed_official 469:fc4922e0c183 269 break;
mbed_official 469:fc4922e0c183 270 case ParityEven:
mbed_official 469:fc4922e0c183 271 case ParityForced1:
mbed_official 469:fc4922e0c183 272 obj->parity = UART_PARITY_EVEN;
mbed_official 469:fc4922e0c183 273 break;
mbed_official 469:fc4922e0c183 274 default: // ParityNone
mbed_official 469:fc4922e0c183 275 obj->parity = UART_PARITY_NONE;
mbed_official 469:fc4922e0c183 276 break;
mbed_official 469:fc4922e0c183 277 }
mbed_official 469:fc4922e0c183 278
mbed_official 469:fc4922e0c183 279 if (stop_bits == 2) {
mbed_official 469:fc4922e0c183 280 obj->stopbits = UART_STOPBITS_2;
mbed_official 469:fc4922e0c183 281 } else {
mbed_official 469:fc4922e0c183 282 obj->stopbits = UART_STOPBITS_1;
mbed_official 469:fc4922e0c183 283 }
mbed_official 469:fc4922e0c183 284
mbed_official 469:fc4922e0c183 285 init_uart(obj);
mbed_official 469:fc4922e0c183 286 }
mbed_official 469:fc4922e0c183 287
mbed_official 469:fc4922e0c183 288 /******************************************************************************
mbed_official 469:fc4922e0c183 289 * INTERRUPTS HANDLING
mbed_official 469:fc4922e0c183 290 ******************************************************************************/
mbed_official 469:fc4922e0c183 291
mbed_official 469:fc4922e0c183 292 static void uart_irq(UARTName name, int id)
mbed_official 469:fc4922e0c183 293 {
mbed_official 469:fc4922e0c183 294 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 469:fc4922e0c183 295 if (serial_irq_ids[id] != 0) {
mbed_official 469:fc4922e0c183 296 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 469:fc4922e0c183 297 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 469:fc4922e0c183 298 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 469:fc4922e0c183 299 }
mbed_official 469:fc4922e0c183 300 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 469:fc4922e0c183 301 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 469:fc4922e0c183 302 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 469:fc4922e0c183 303 }
mbed_official 469:fc4922e0c183 304 }
mbed_official 469:fc4922e0c183 305 }
mbed_official 469:fc4922e0c183 306
mbed_official 469:fc4922e0c183 307 static void uart1_irq(void)
mbed_official 469:fc4922e0c183 308 {
mbed_official 469:fc4922e0c183 309 uart_irq(UART_1, 0);
mbed_official 469:fc4922e0c183 310 }
mbed_official 469:fc4922e0c183 311
mbed_official 469:fc4922e0c183 312 static void uart2_irq(void)
mbed_official 469:fc4922e0c183 313 {
mbed_official 469:fc4922e0c183 314 uart_irq(UART_2, 1);
mbed_official 469:fc4922e0c183 315 }
mbed_official 469:fc4922e0c183 316
mbed_official 469:fc4922e0c183 317 #if defined USART3_BASE
mbed_official 469:fc4922e0c183 318 static void uart3_irq(void)
mbed_official 469:fc4922e0c183 319 {
mbed_official 469:fc4922e0c183 320 uart_irq(UART_3, 2);
mbed_official 469:fc4922e0c183 321 }
mbed_official 469:fc4922e0c183 322 #endif
mbed_official 469:fc4922e0c183 323
mbed_official 469:fc4922e0c183 324 #if defined USART4_BASE
mbed_official 469:fc4922e0c183 325 static void uart4_irq(void)
mbed_official 469:fc4922e0c183 326 {
mbed_official 469:fc4922e0c183 327 uart_irq(UART_4, 3);
mbed_official 469:fc4922e0c183 328 }
mbed_official 469:fc4922e0c183 329 #endif
mbed_official 469:fc4922e0c183 330
mbed_official 469:fc4922e0c183 331 #if defined USART5_BASE
mbed_official 469:fc4922e0c183 332 static void uart5_irq(void)
mbed_official 469:fc4922e0c183 333 {
mbed_official 469:fc4922e0c183 334 uart_irq(UART_5, 4);
mbed_official 469:fc4922e0c183 335 }
mbed_official 469:fc4922e0c183 336 #endif
mbed_official 469:fc4922e0c183 337
mbed_official 469:fc4922e0c183 338 #if defined USART6_BASE
mbed_official 469:fc4922e0c183 339 static void uart6_irq(void)
mbed_official 469:fc4922e0c183 340 {
mbed_official 469:fc4922e0c183 341 uart_irq(UART_6, 5);
mbed_official 469:fc4922e0c183 342 }
mbed_official 469:fc4922e0c183 343 #endif
mbed_official 469:fc4922e0c183 344
mbed_official 469:fc4922e0c183 345 #if defined USART7_BASE
mbed_official 469:fc4922e0c183 346 static void uart7_irq(void)
mbed_official 469:fc4922e0c183 347 {
mbed_official 469:fc4922e0c183 348 uart_irq(UART_7, 6);
mbed_official 469:fc4922e0c183 349 }
mbed_official 469:fc4922e0c183 350 #endif
mbed_official 469:fc4922e0c183 351
mbed_official 469:fc4922e0c183 352 #if defined USART8_BASE
mbed_official 469:fc4922e0c183 353 static void uart8_irq(void)
mbed_official 469:fc4922e0c183 354 {
mbed_official 469:fc4922e0c183 355 uart_irq(UART_8, 7);
mbed_official 469:fc4922e0c183 356 }
mbed_official 469:fc4922e0c183 357 #endif
mbed_official 469:fc4922e0c183 358
mbed_official 469:fc4922e0c183 359 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 469:fc4922e0c183 360 {
mbed_official 469:fc4922e0c183 361 irq_handler = handler;
mbed_official 469:fc4922e0c183 362 serial_irq_ids[obj->index] = id;
mbed_official 469:fc4922e0c183 363 }
mbed_official 469:fc4922e0c183 364
mbed_official 469:fc4922e0c183 365 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 469:fc4922e0c183 366 {
mbed_official 469:fc4922e0c183 367 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 469:fc4922e0c183 368 uint32_t vector = 0;
mbed_official 469:fc4922e0c183 369
mbed_official 469:fc4922e0c183 370 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 371
mbed_official 469:fc4922e0c183 372 if (obj->uart == UART_1) {
mbed_official 469:fc4922e0c183 373 irq_n = USART1_IRQn;
mbed_official 469:fc4922e0c183 374 vector = (uint32_t)&uart1_irq;
mbed_official 469:fc4922e0c183 375 }
mbed_official 469:fc4922e0c183 376
mbed_official 469:fc4922e0c183 377 if (obj->uart == UART_2) {
mbed_official 469:fc4922e0c183 378 irq_n = USART2_IRQn;
mbed_official 469:fc4922e0c183 379 vector = (uint32_t)&uart2_irq;
mbed_official 469:fc4922e0c183 380 }
mbed_official 469:fc4922e0c183 381
mbed_official 469:fc4922e0c183 382 #if defined (TARGET_STM32F091RC)
mbed_official 469:fc4922e0c183 383 if (obj->uart == UART_3) {
mbed_official 469:fc4922e0c183 384 irq_n = USART3_8_IRQn;
mbed_official 469:fc4922e0c183 385 vector = (uint32_t)&uart3_irq;
mbed_official 469:fc4922e0c183 386 }
mbed_official 469:fc4922e0c183 387
mbed_official 469:fc4922e0c183 388 if (obj->uart == UART_4) {
mbed_official 469:fc4922e0c183 389 irq_n = USART3_8_IRQn;
mbed_official 469:fc4922e0c183 390 vector = (uint32_t)&uart4_irq;
mbed_official 469:fc4922e0c183 391 }
mbed_official 469:fc4922e0c183 392
mbed_official 469:fc4922e0c183 393 if (obj->uart == UART_5) {
mbed_official 469:fc4922e0c183 394 irq_n = USART3_8_IRQn;
mbed_official 469:fc4922e0c183 395 vector = (uint32_t)&uart5_irq;
mbed_official 469:fc4922e0c183 396 }
mbed_official 469:fc4922e0c183 397
mbed_official 469:fc4922e0c183 398 if (obj->uart == UART_6) {
mbed_official 469:fc4922e0c183 399 irq_n = USART3_8_IRQn;
mbed_official 469:fc4922e0c183 400 vector = (uint32_t)&uart6_irq;
mbed_official 469:fc4922e0c183 401 }
mbed_official 469:fc4922e0c183 402
mbed_official 469:fc4922e0c183 403 if (obj->uart == UART_7) {
mbed_official 469:fc4922e0c183 404 irq_n = USART3_8_IRQn;
mbed_official 469:fc4922e0c183 405 vector = (uint32_t)&uart7_irq;
mbed_official 469:fc4922e0c183 406 }
mbed_official 469:fc4922e0c183 407
mbed_official 469:fc4922e0c183 408 if (obj->uart == UART_8) {
mbed_official 469:fc4922e0c183 409 irq_n = USART3_8_IRQn;
mbed_official 469:fc4922e0c183 410 vector = (uint32_t)&uart8_irq;
mbed_official 469:fc4922e0c183 411 }
mbed_official 469:fc4922e0c183 412
mbed_official 469:fc4922e0c183 413 #elif defined (TARGET_STM32F030R8) || defined (TARGET_STM32F051R8)
mbed_official 469:fc4922e0c183 414
mbed_official 469:fc4922e0c183 415 #else
mbed_official 469:fc4922e0c183 416 if (obj->uart == UART_3) {
mbed_official 469:fc4922e0c183 417 irq_n = USART3_4_IRQn;
mbed_official 469:fc4922e0c183 418 vector = (uint32_t)&uart3_irq;
mbed_official 469:fc4922e0c183 419 }
mbed_official 469:fc4922e0c183 420
mbed_official 469:fc4922e0c183 421 if (obj->uart == UART_4) {
mbed_official 469:fc4922e0c183 422 irq_n = USART3_4_IRQn;
mbed_official 469:fc4922e0c183 423 vector = (uint32_t)&uart4_irq;
mbed_official 469:fc4922e0c183 424 }
mbed_official 469:fc4922e0c183 425 #endif
mbed_official 469:fc4922e0c183 426
mbed_official 469:fc4922e0c183 427 if (enable) {
mbed_official 469:fc4922e0c183 428
mbed_official 469:fc4922e0c183 429 if (irq == RxIrq) {
mbed_official 469:fc4922e0c183 430 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 469:fc4922e0c183 431 } else { // TxIrq
mbed_official 469:fc4922e0c183 432 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 469:fc4922e0c183 433 }
mbed_official 469:fc4922e0c183 434
mbed_official 469:fc4922e0c183 435 NVIC_SetVector(irq_n, vector);
mbed_official 469:fc4922e0c183 436 NVIC_EnableIRQ(irq_n);
mbed_official 469:fc4922e0c183 437
mbed_official 469:fc4922e0c183 438 } else { // disable
mbed_official 469:fc4922e0c183 439
mbed_official 469:fc4922e0c183 440 int all_disabled = 0;
mbed_official 469:fc4922e0c183 441
mbed_official 469:fc4922e0c183 442 if (irq == RxIrq) {
mbed_official 469:fc4922e0c183 443 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 469:fc4922e0c183 444 // Check if TxIrq is disabled too
mbed_official 469:fc4922e0c183 445 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 469:fc4922e0c183 446 } else { // TxIrq
mbed_official 469:fc4922e0c183 447 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 469:fc4922e0c183 448 // Check if RxIrq is disabled too
mbed_official 469:fc4922e0c183 449 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 469:fc4922e0c183 450 }
mbed_official 469:fc4922e0c183 451
mbed_official 469:fc4922e0c183 452 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 469:fc4922e0c183 453
mbed_official 469:fc4922e0c183 454 }
mbed_official 469:fc4922e0c183 455 }
mbed_official 469:fc4922e0c183 456
mbed_official 469:fc4922e0c183 457 /******************************************************************************
mbed_official 469:fc4922e0c183 458 * READ/WRITE
mbed_official 469:fc4922e0c183 459 ******************************************************************************/
mbed_official 469:fc4922e0c183 460
mbed_official 469:fc4922e0c183 461 int serial_getc(serial_t *obj)
mbed_official 469:fc4922e0c183 462 {
mbed_official 469:fc4922e0c183 463 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 464 while (!serial_readable(obj));
mbed_official 469:fc4922e0c183 465 return (int)(uart->RDR & (uint16_t)0xFF);
mbed_official 469:fc4922e0c183 466 }
mbed_official 469:fc4922e0c183 467
mbed_official 469:fc4922e0c183 468 void serial_putc(serial_t *obj, int c)
mbed_official 469:fc4922e0c183 469 {
mbed_official 469:fc4922e0c183 470 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 471 while (!serial_writable(obj));
mbed_official 469:fc4922e0c183 472 uart->TDR = (uint32_t)(c & (uint16_t)0xFF);
mbed_official 469:fc4922e0c183 473 }
mbed_official 469:fc4922e0c183 474
mbed_official 469:fc4922e0c183 475 int serial_readable(serial_t *obj)
mbed_official 469:fc4922e0c183 476 {
mbed_official 469:fc4922e0c183 477 int status;
mbed_official 469:fc4922e0c183 478 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 479 // Check if data is received
mbed_official 469:fc4922e0c183 480 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 469:fc4922e0c183 481 return status;
mbed_official 469:fc4922e0c183 482 }
mbed_official 469:fc4922e0c183 483
mbed_official 469:fc4922e0c183 484 int serial_writable(serial_t *obj)
mbed_official 469:fc4922e0c183 485 {
mbed_official 469:fc4922e0c183 486 int status;
mbed_official 469:fc4922e0c183 487 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 488 // Check if data is transmitted
mbed_official 469:fc4922e0c183 489 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 469:fc4922e0c183 490 return status;
mbed_official 469:fc4922e0c183 491 }
mbed_official 469:fc4922e0c183 492
mbed_official 469:fc4922e0c183 493 void serial_clear(serial_t *obj)
mbed_official 469:fc4922e0c183 494 {
mbed_official 469:fc4922e0c183 495 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 469:fc4922e0c183 496 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 469:fc4922e0c183 497 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 469:fc4922e0c183 498 }
mbed_official 469:fc4922e0c183 499
mbed_official 469:fc4922e0c183 500 void serial_pinout_tx(PinName tx)
mbed_official 469:fc4922e0c183 501 {
mbed_official 469:fc4922e0c183 502 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 469:fc4922e0c183 503 }
mbed_official 469:fc4922e0c183 504
mbed_official 469:fc4922e0c183 505 void serial_break_set(serial_t *obj)
mbed_official 469:fc4922e0c183 506 {
mbed_official 469:fc4922e0c183 507 // [TODO]
mbed_official 469:fc4922e0c183 508 }
mbed_official 469:fc4922e0c183 509
mbed_official 469:fc4922e0c183 510 void serial_break_clear(serial_t *obj)
mbed_official 469:fc4922e0c183 511 {
mbed_official 469:fc4922e0c183 512 // [TODO]
mbed_official 469:fc4922e0c183 513 }
mbed_official 469:fc4922e0c183 514
mbed_official 469:fc4922e0c183 515 #endif