shinichi nakazawa / mbed-src

mbed library sources

Dependents:   Nucleo_blink_led

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32L1/serial_api.c@496:543871686697, 2015-03-24 (annotated)

Committer:
mbed_official
Date:
Tue Mar 24 09:00:08 2015 +0000
Revision:
496:543871686697
Parent:
targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/serial_api.c@414:4ec4c5b614b0 
Synchronized with git revision ea01d61fa18430564b78226045b196bb6bf6b66a



Full URL: https://github.com/mbedmicro/mbed/commit/ea01d61fa18430564b78226045b196bb6bf6b66a/



NUCLEO_L152RE - reorg hal

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "serial_api.h"
mbed_official 174:8bb9f3a33240 32
mbed_official 174:8bb9f3a33240 33 #if DEVICE_SERIAL
mbed_official 174:8bb9f3a33240 34
mbed_official 76:aeb1df146756 35 #include "cmsis.h"
mbed_official 76:aeb1df146756 36 #include "pinmap.h"
mbed_official 76:aeb1df146756 37 #include <string.h>
mbed_official 414:4ec4c5b614b0 38 #include "PeripheralPins.h"
mbed_official 76:aeb1df146756 39
mbed_official 118:b44c45162f28 40 #define UART_NUM (5)
mbed_official 76:aeb1df146756 41
mbed_official 354:e67efb2aab0e 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0};
mbed_official 76:aeb1df146756 43
mbed_official 76:aeb1df146756 44 static uart_irq_handler irq_handler;
mbed_official 76:aeb1df146756 45
mbed_official 354:e67efb2aab0e 46 UART_HandleTypeDef UartHandle;
mbed_official 354:e67efb2aab0e 47
mbed_official 76:aeb1df146756 48 int stdio_uart_inited = 0;
mbed_official 76:aeb1df146756 49 serial_t stdio_uart;
mbed_official 76:aeb1df146756 50
mbed_official 354:e67efb2aab0e 51 static void init_uart(serial_t *obj)
mbed_official 354:e67efb2aab0e 52 {
mbed_official 354:e67efb2aab0e 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 54
mbed_official 354:e67efb2aab0e 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 354:e67efb2aab0e 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 354:e67efb2aab0e 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 354:e67efb2aab0e 58 UartHandle.Init.Parity = obj->parity;
mbed_official 354:e67efb2aab0e 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 242:7074e42da0b2 60
mbed_official 242:7074e42da0b2 61 if (obj->pin_rx == NC) {
mbed_official 354:e67efb2aab0e 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 242:7074e42da0b2 63 } else if (obj->pin_tx == NC) {
mbed_official 354:e67efb2aab0e 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 242:7074e42da0b2 65 } else {
mbed_official 354:e67efb2aab0e 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 242:7074e42da0b2 67 }
mbed_official 242:7074e42da0b2 68
mbed_official 354:e67efb2aab0e 69 HAL_UART_Init(&UartHandle);
mbed_official 76:aeb1df146756 70 }
mbed_official 76:aeb1df146756 71
mbed_official 354:e67efb2aab0e 72 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 354:e67efb2aab0e 73 {
mbed_official 76:aeb1df146756 74 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 76:aeb1df146756 75 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 76 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 174:8bb9f3a33240 77
mbed_official 76:aeb1df146756 78 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 76:aeb1df146756 79 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 80 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 76:aeb1df146756 81
mbed_official 354:e67efb2aab0e 82 // Enable UART clock
mbed_official 76:aeb1df146756 83 if (obj->uart == UART_1) {
mbed_official 354:e67efb2aab0e 84 __USART1_CLK_ENABLE();
mbed_official 215:83cf97a28428 85 obj->index = 0;
mbed_official 76:aeb1df146756 86 }
mbed_official 354:e67efb2aab0e 87
mbed_official 76:aeb1df146756 88 if (obj->uart == UART_2) {
mbed_official 354:e67efb2aab0e 89 __USART2_CLK_ENABLE();
mbed_official 215:83cf97a28428 90 obj->index = 1;
mbed_official 76:aeb1df146756 91 }
mbed_official 354:e67efb2aab0e 92
mbed_official 129:0182c99221bc 93 if (obj->uart == UART_3) {
mbed_official 354:e67efb2aab0e 94 __USART3_CLK_ENABLE();
mbed_official 215:83cf97a28428 95 obj->index = 2;
mbed_official 118:b44c45162f28 96 }
mbed_official 354:e67efb2aab0e 97
mbed_official 129:0182c99221bc 98 if (obj->uart == UART_4) {
mbed_official 354:e67efb2aab0e 99 __UART4_CLK_ENABLE();
mbed_official 215:83cf97a28428 100 obj->index = 3;
mbed_official 118:b44c45162f28 101 }
mbed_official 354:e67efb2aab0e 102
mbed_official 129:0182c99221bc 103 if (obj->uart == UART_5) {
mbed_official 354:e67efb2aab0e 104 __UART5_CLK_ENABLE();
mbed_official 215:83cf97a28428 105 obj->index = 4;
mbed_official 118:b44c45162f28 106 }
mbed_official 129:0182c99221bc 107
mbed_official 76:aeb1df146756 108 // Configure the UART pins
mbed_official 76:aeb1df146756 109 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 110 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 414:4ec4c5b614b0 111 if (tx != NC) {
mbed_official 339:40bd4701f3e2 112 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 113 }
mbed_official 414:4ec4c5b614b0 114 if (rx != NC) {
mbed_official 339:40bd4701f3e2 115 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 116 }
mbed_official 76:aeb1df146756 117
mbed_official 76:aeb1df146756 118 // Configure UART
mbed_official 76:aeb1df146756 119 obj->baudrate = 9600;
mbed_official 354:e67efb2aab0e 120 obj->databits = UART_WORDLENGTH_8B;
mbed_official 354:e67efb2aab0e 121 obj->stopbits = UART_STOPBITS_1;
mbed_official 354:e67efb2aab0e 122 obj->parity = UART_PARITY_NONE;
mbed_official 354:e67efb2aab0e 123 obj->pin_tx = tx;
mbed_official 354:e67efb2aab0e 124 obj->pin_rx = rx;
mbed_official 76:aeb1df146756 125
mbed_official 354:e67efb2aab0e 126 init_uart(obj);
mbed_official 174:8bb9f3a33240 127
mbed_official 76:aeb1df146756 128 // For stdio management
mbed_official 76:aeb1df146756 129 if (obj->uart == STDIO_UART) {
mbed_official 76:aeb1df146756 130 stdio_uart_inited = 1;
mbed_official 76:aeb1df146756 131 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 174:8bb9f3a33240 132 }
mbed_official 76:aeb1df146756 133 }
mbed_official 76:aeb1df146756 134
mbed_official 354:e67efb2aab0e 135 void serial_free(serial_t *obj)
mbed_official 354:e67efb2aab0e 136 {
mbed_official 215:83cf97a28428 137 // Reset UART and disable clock
mbed_official 215:83cf97a28428 138 if (obj->uart == UART_1) {
mbed_official 354:e67efb2aab0e 139 __USART1_FORCE_RESET();
mbed_official 354:e67efb2aab0e 140 __USART1_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 141 __USART1_CLK_DISABLE();
mbed_official 215:83cf97a28428 142 }
mbed_official 354:e67efb2aab0e 143
mbed_official 215:83cf97a28428 144 if (obj->uart == UART_2) {
mbed_official 354:e67efb2aab0e 145 __USART2_FORCE_RESET();
mbed_official 354:e67efb2aab0e 146 __USART2_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 147 __USART2_CLK_DISABLE();
mbed_official 215:83cf97a28428 148 }
mbed_official 354:e67efb2aab0e 149
mbed_official 215:83cf97a28428 150 if (obj->uart == UART_3) {
mbed_official 354:e67efb2aab0e 151 __USART3_FORCE_RESET();
mbed_official 354:e67efb2aab0e 152 __USART3_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 153 __USART3_CLK_DISABLE();
mbed_official 215:83cf97a28428 154 }
mbed_official 354:e67efb2aab0e 155
mbed_official 215:83cf97a28428 156 if (obj->uart == UART_4) {
mbed_official 354:e67efb2aab0e 157 __UART4_FORCE_RESET();
mbed_official 354:e67efb2aab0e 158 __UART4_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 159 __UART4_CLK_DISABLE();
mbed_official 215:83cf97a28428 160 }
mbed_official 354:e67efb2aab0e 161
mbed_official 215:83cf97a28428 162 if (obj->uart == UART_5) {
mbed_official 354:e67efb2aab0e 163 __UART5_FORCE_RESET();
mbed_official 354:e67efb2aab0e 164 __UART5_RELEASE_RESET();
mbed_official 354:e67efb2aab0e 165 __UART5_CLK_DISABLE();
mbed_official 215:83cf97a28428 166 }
mbed_official 215:83cf97a28428 167
mbed_official 215:83cf97a28428 168 // Configure GPIOs
mbed_official 354:e67efb2aab0e 169 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 354:e67efb2aab0e 170 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 171
mbed_official 76:aeb1df146756 172 serial_irq_ids[obj->index] = 0;
mbed_official 76:aeb1df146756 173 }
mbed_official 76:aeb1df146756 174
mbed_official 354:e67efb2aab0e 175 void serial_baud(serial_t *obj, int baudrate)
mbed_official 354:e67efb2aab0e 176 {
mbed_official 76:aeb1df146756 177 obj->baudrate = baudrate;
mbed_official 354:e67efb2aab0e 178 init_uart(obj);
mbed_official 76:aeb1df146756 179 }
mbed_official 76:aeb1df146756 180
mbed_official 354:e67efb2aab0e 181 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 354:e67efb2aab0e 182 {
mbed_official 242:7074e42da0b2 183 if (data_bits == 9) {
mbed_official 354:e67efb2aab0e 184 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 185 } else {
mbed_official 354:e67efb2aab0e 186 obj->databits = UART_WORDLENGTH_8B;
mbed_official 76:aeb1df146756 187 }
mbed_official 76:aeb1df146756 188
mbed_official 76:aeb1df146756 189 switch (parity) {
mbed_official 174:8bb9f3a33240 190 case ParityOdd:
mbed_official 174:8bb9f3a33240 191 case ParityForced0:
mbed_official 354:e67efb2aab0e 192 obj->parity = UART_PARITY_ODD;
mbed_official 174:8bb9f3a33240 193 break;
mbed_official 174:8bb9f3a33240 194 case ParityEven:
mbed_official 174:8bb9f3a33240 195 case ParityForced1:
mbed_official 354:e67efb2aab0e 196 obj->parity = UART_PARITY_EVEN;
mbed_official 174:8bb9f3a33240 197 break;
mbed_official 174:8bb9f3a33240 198 default: // ParityNone
mbed_official 354:e67efb2aab0e 199 obj->parity = UART_PARITY_NONE;
mbed_official 174:8bb9f3a33240 200 break;
mbed_official 76:aeb1df146756 201 }
mbed_official 174:8bb9f3a33240 202
mbed_official 76:aeb1df146756 203 if (stop_bits == 2) {
mbed_official 354:e67efb2aab0e 204 obj->stopbits = UART_STOPBITS_2;
mbed_official 174:8bb9f3a33240 205 } else {
mbed_official 354:e67efb2aab0e 206 obj->stopbits = UART_STOPBITS_1;
mbed_official 76:aeb1df146756 207 }
mbed_official 76:aeb1df146756 208
mbed_official 354:e67efb2aab0e 209 init_uart(obj);
mbed_official 76:aeb1df146756 210 }
mbed_official 76:aeb1df146756 211
mbed_official 76:aeb1df146756 212 /******************************************************************************
mbed_official 76:aeb1df146756 213 * INTERRUPTS HANDLING
mbed_official 76:aeb1df146756 214 ******************************************************************************/
mbed_official 76:aeb1df146756 215
mbed_official 354:e67efb2aab0e 216 static void uart_irq(UARTName name, int id)
mbed_official 354:e67efb2aab0e 217 {
mbed_official 354:e67efb2aab0e 218 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 76:aeb1df146756 219 if (serial_irq_ids[id] != 0) {
mbed_official 354:e67efb2aab0e 220 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 76:aeb1df146756 221 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 354:e67efb2aab0e 222 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 76:aeb1df146756 223 }
mbed_official 354:e67efb2aab0e 224 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 76:aeb1df146756 225 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 354:e67efb2aab0e 226 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 76:aeb1df146756 227 }
mbed_official 76:aeb1df146756 228 }
mbed_official 76:aeb1df146756 229 }
mbed_official 76:aeb1df146756 230
mbed_official 354:e67efb2aab0e 231 static void uart1_irq(void)
mbed_official 354:e67efb2aab0e 232 {
mbed_official 354:e67efb2aab0e 233 uart_irq(UART_1, 0);
mbed_official 174:8bb9f3a33240 234 }
mbed_official 354:e67efb2aab0e 235
mbed_official 354:e67efb2aab0e 236 static void uart2_irq(void)
mbed_official 354:e67efb2aab0e 237 {
mbed_official 354:e67efb2aab0e 238 uart_irq(UART_2, 1);
mbed_official 174:8bb9f3a33240 239 }
mbed_official 76:aeb1df146756 240
mbed_official 354:e67efb2aab0e 241 static void uart3_irq(void)
mbed_official 354:e67efb2aab0e 242 {
mbed_official 354:e67efb2aab0e 243 uart_irq(UART_3, 2);
mbed_official 354:e67efb2aab0e 244 }
mbed_official 354:e67efb2aab0e 245
mbed_official 354:e67efb2aab0e 246 static void uart4_irq(void)
mbed_official 354:e67efb2aab0e 247 {
mbed_official 354:e67efb2aab0e 248 uart_irq(UART_4, 3);
mbed_official 354:e67efb2aab0e 249 }
mbed_official 354:e67efb2aab0e 250
mbed_official 354:e67efb2aab0e 251 static void uart5_irq(void)
mbed_official 354:e67efb2aab0e 252 {
mbed_official 354:e67efb2aab0e 253 uart_irq(UART_5, 4);
mbed_official 354:e67efb2aab0e 254 }
mbed_official 354:e67efb2aab0e 255
mbed_official 354:e67efb2aab0e 256 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 354:e67efb2aab0e 257 {
mbed_official 76:aeb1df146756 258 irq_handler = handler;
mbed_official 76:aeb1df146756 259 serial_irq_ids[obj->index] = id;
mbed_official 76:aeb1df146756 260 }
mbed_official 76:aeb1df146756 261
mbed_official 354:e67efb2aab0e 262 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 354:e67efb2aab0e 263 {
mbed_official 76:aeb1df146756 264 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 76:aeb1df146756 265 uint32_t vector = 0;
mbed_official 354:e67efb2aab0e 266
mbed_official 354:e67efb2aab0e 267 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 268
mbed_official 76:aeb1df146756 269 if (obj->uart == UART_1) {
mbed_official 174:8bb9f3a33240 270 irq_n = USART1_IRQn;
mbed_official 174:8bb9f3a33240 271 vector = (uint32_t)&uart1_irq;
mbed_official 76:aeb1df146756 272 }
mbed_official 174:8bb9f3a33240 273
mbed_official 76:aeb1df146756 274 if (obj->uart == UART_2) {
mbed_official 174:8bb9f3a33240 275 irq_n = USART2_IRQn;
mbed_official 174:8bb9f3a33240 276 vector = (uint32_t)&uart2_irq;
mbed_official 76:aeb1df146756 277 }
mbed_official 129:0182c99221bc 278
mbed_official 118:b44c45162f28 279 if (obj->uart == UART_3) {
mbed_official 174:8bb9f3a33240 280 irq_n = USART3_IRQn;
mbed_official 174:8bb9f3a33240 281 vector = (uint32_t)&uart3_irq;
mbed_official 118:b44c45162f28 282 }
mbed_official 129:0182c99221bc 283
mbed_official 118:b44c45162f28 284 if (obj->uart == UART_4) {
mbed_official 174:8bb9f3a33240 285 irq_n = UART4_IRQn;
mbed_official 174:8bb9f3a33240 286 vector = (uint32_t)&uart4_irq;
mbed_official 118:b44c45162f28 287 }
mbed_official 129:0182c99221bc 288
mbed_official 118:b44c45162f28 289 if (obj->uart == UART_5) {
mbed_official 174:8bb9f3a33240 290 irq_n = UART5_IRQn;
mbed_official 174:8bb9f3a33240 291 vector = (uint32_t)&uart5_irq;
mbed_official 118:b44c45162f28 292 }
mbed_official 174:8bb9f3a33240 293
mbed_official 76:aeb1df146756 294 if (enable) {
mbed_official 174:8bb9f3a33240 295
mbed_official 76:aeb1df146756 296 if (irq == RxIrq) {
mbed_official 354:e67efb2aab0e 297 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 174:8bb9f3a33240 298 } else { // TxIrq
mbed_official 354:e67efb2aab0e 299 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 174:8bb9f3a33240 300 }
mbed_official 174:8bb9f3a33240 301
mbed_official 76:aeb1df146756 302 NVIC_SetVector(irq_n, vector);
mbed_official 76:aeb1df146756 303 NVIC_EnableIRQ(irq_n);
mbed_official 174:8bb9f3a33240 304
mbed_official 76:aeb1df146756 305 } else { // disable
mbed_official 174:8bb9f3a33240 306
mbed_official 76:aeb1df146756 307 int all_disabled = 0;
mbed_official 174:8bb9f3a33240 308
mbed_official 76:aeb1df146756 309 if (irq == RxIrq) {
mbed_official 354:e67efb2aab0e 310 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 76:aeb1df146756 311 // Check if TxIrq is disabled too
mbed_official 354:e67efb2aab0e 312 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 174:8bb9f3a33240 313 } else { // TxIrq
mbed_official 354:e67efb2aab0e 314 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 76:aeb1df146756 315 // Check if RxIrq is disabled too
mbed_official 354:e67efb2aab0e 316 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 76:aeb1df146756 317 }
mbed_official 174:8bb9f3a33240 318
mbed_official 76:aeb1df146756 319 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 174:8bb9f3a33240 320
mbed_official 174:8bb9f3a33240 321 }
mbed_official 76:aeb1df146756 322 }
mbed_official 76:aeb1df146756 323
mbed_official 76:aeb1df146756 324 /******************************************************************************
mbed_official 76:aeb1df146756 325 * READ/WRITE
mbed_official 76:aeb1df146756 326 ******************************************************************************/
mbed_official 76:aeb1df146756 327
mbed_official 354:e67efb2aab0e 328 int serial_getc(serial_t *obj)
mbed_official 354:e67efb2aab0e 329 {
mbed_official 354:e67efb2aab0e 330 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 331 while (!serial_readable(obj));
mbed_official 354:e67efb2aab0e 332 return (int)(uart->DR & 0xFF);
mbed_official 76:aeb1df146756 333 }
mbed_official 76:aeb1df146756 334
mbed_official 354:e67efb2aab0e 335 void serial_putc(serial_t *obj, int c)
mbed_official 354:e67efb2aab0e 336 {
mbed_official 354:e67efb2aab0e 337 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 338 while (!serial_writable(obj));
mbed_official 354:e67efb2aab0e 339 uart->DR = (uint32_t)(c & 0xFF);
mbed_official 76:aeb1df146756 340 }
mbed_official 76:aeb1df146756 341
mbed_official 354:e67efb2aab0e 342 int serial_readable(serial_t *obj)
mbed_official 354:e67efb2aab0e 343 {
mbed_official 76:aeb1df146756 344 int status;
mbed_official 354:e67efb2aab0e 345 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 346 // Check if data is received
mbed_official 354:e67efb2aab0e 347 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 348 return status;
mbed_official 76:aeb1df146756 349 }
mbed_official 76:aeb1df146756 350
mbed_official 354:e67efb2aab0e 351 int serial_writable(serial_t *obj)
mbed_official 354:e67efb2aab0e 352 {
mbed_official 76:aeb1df146756 353 int status;
mbed_official 354:e67efb2aab0e 354 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 355 // Check if data is transmitted
mbed_official 354:e67efb2aab0e 356 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 357 return status;
mbed_official 76:aeb1df146756 358 }
mbed_official 76:aeb1df146756 359
mbed_official 354:e67efb2aab0e 360 void serial_clear(serial_t *obj)
mbed_official 354:e67efb2aab0e 361 {
mbed_official 354:e67efb2aab0e 362 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 354:e67efb2aab0e 363 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 354:e67efb2aab0e 364 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 76:aeb1df146756 365 }
mbed_official 76:aeb1df146756 366
mbed_official 354:e67efb2aab0e 367 void serial_pinout_tx(PinName tx)
mbed_official 354:e67efb2aab0e 368 {
mbed_official 76:aeb1df146756 369 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 370 }
mbed_official 76:aeb1df146756 371
mbed_official 354:e67efb2aab0e 372 void serial_break_set(serial_t *obj)
mbed_official 354:e67efb2aab0e 373 {
mbed_official 354:e67efb2aab0e 374 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 354:e67efb2aab0e 375 HAL_LIN_SendBreak(&UartHandle);
mbed_official 76:aeb1df146756 376 }
mbed_official 76:aeb1df146756 377
mbed_official 354:e67efb2aab0e 378 void serial_break_clear(serial_t *obj)
mbed_official 354:e67efb2aab0e 379 {
mbed_official 76:aeb1df146756 380 }
mbed_official 174:8bb9f3a33240 381
mbed_official 174:8bb9f3a33240 382 #endif