Janek Mann / mbed-src-openwear

mbed library sources modified for open wear

Dependents:   openwear-lifelogger-example

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_L053R8/serial_api.c@181:a4cbdfbbd2f4, 2014-05-07 (annotated)

Committer:
mbed_official
Date:
Wed May 07 13:15:08 2014 +0100
Revision:
181:a4cbdfbbd2f4
Child:
201:fa203361dc70
Synchronized with git revision 7751e759576c6fd68deccb81ea82bac19ed41745



Full URL: https://github.com/mbedmicro/mbed/commit/7751e759576c6fd68deccb81ea82bac19ed41745/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 181:a4cbdfbbd2f4 1 /* mbed Microcontroller Library
mbed_official 181:a4cbdfbbd2f4 2 *******************************************************************************
mbed_official 181:a4cbdfbbd2f4 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 181:a4cbdfbbd2f4 4 * All rights reserved.
mbed_official 181:a4cbdfbbd2f4 5 *
mbed_official 181:a4cbdfbbd2f4 6 * Redistribution and use in source and binary forms, with or without
mbed_official 181:a4cbdfbbd2f4 7 * modification, are permitted provided that the following conditions are met:
mbed_official 181:a4cbdfbbd2f4 8 *
mbed_official 181:a4cbdfbbd2f4 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 181:a4cbdfbbd2f4 10 * this list of conditions and the following disclaimer.
mbed_official 181:a4cbdfbbd2f4 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 181:a4cbdfbbd2f4 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 181:a4cbdfbbd2f4 13 * and/or other materials provided with the distribution.
mbed_official 181:a4cbdfbbd2f4 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 181:a4cbdfbbd2f4 15 * may be used to endorse or promote products derived from this software
mbed_official 181:a4cbdfbbd2f4 16 * without specific prior written permission.
mbed_official 181:a4cbdfbbd2f4 17 *
mbed_official 181:a4cbdfbbd2f4 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 181:a4cbdfbbd2f4 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 181:a4cbdfbbd2f4 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 181:a4cbdfbbd2f4 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 181:a4cbdfbbd2f4 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 181:a4cbdfbbd2f4 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 181:a4cbdfbbd2f4 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 181:a4cbdfbbd2f4 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 181:a4cbdfbbd2f4 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 181:a4cbdfbbd2f4 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 181:a4cbdfbbd2f4 28 *******************************************************************************
mbed_official 181:a4cbdfbbd2f4 29 */
mbed_official 181:a4cbdfbbd2f4 30 #include "serial_api.h"
mbed_official 181:a4cbdfbbd2f4 31
mbed_official 181:a4cbdfbbd2f4 32 #if DEVICE_SERIAL
mbed_official 181:a4cbdfbbd2f4 33
mbed_official 181:a4cbdfbbd2f4 34 #include "cmsis.h"
mbed_official 181:a4cbdfbbd2f4 35 #include "pinmap.h"
mbed_official 181:a4cbdfbbd2f4 36 #include "error.h"
mbed_official 181:a4cbdfbbd2f4 37 #include <string.h>
mbed_official 181:a4cbdfbbd2f4 38
mbed_official 181:a4cbdfbbd2f4 39 static const PinMap PinMap_UART_TX[] = {
mbed_official 181:a4cbdfbbd2f4 40 {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
mbed_official 181:a4cbdfbbd2f4 41 {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
mbed_official 181:a4cbdfbbd2f4 42 {PA_14, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)}, // Warning: this pin is used by SWCLK
mbed_official 181:a4cbdfbbd2f4 43 {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
mbed_official 181:a4cbdfbbd2f4 44 {PB_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 45 {PC_4, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 46 {PC_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 47 {NC, NC, 0}
mbed_official 181:a4cbdfbbd2f4 48 };
mbed_official 181:a4cbdfbbd2f4 49
mbed_official 181:a4cbdfbbd2f4 50 static const PinMap PinMap_UART_RX[] = {
mbed_official 181:a4cbdfbbd2f4 51 {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
mbed_official 181:a4cbdfbbd2f4 52 {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
mbed_official 181:a4cbdfbbd2f4 53 {PA_15, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
mbed_official 181:a4cbdfbbd2f4 54 {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
mbed_official 181:a4cbdfbbd2f4 55 {PB_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 56 {PC_5, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 57 {PC_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
mbed_official 181:a4cbdfbbd2f4 58 {NC, NC, 0}
mbed_official 181:a4cbdfbbd2f4 59 };
mbed_official 181:a4cbdfbbd2f4 60
mbed_official 181:a4cbdfbbd2f4 61 #define UART_NUM (3)
mbed_official 181:a4cbdfbbd2f4 62
mbed_official 181:a4cbdfbbd2f4 63 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 181:a4cbdfbbd2f4 64
mbed_official 181:a4cbdfbbd2f4 65 static uart_irq_handler irq_handler;
mbed_official 181:a4cbdfbbd2f4 66
mbed_official 181:a4cbdfbbd2f4 67 UART_HandleTypeDef UartHandle;
mbed_official 181:a4cbdfbbd2f4 68 USART_HandleTypeDef UsartHandle;
mbed_official 181:a4cbdfbbd2f4 69
mbed_official 181:a4cbdfbbd2f4 70 int stdio_uart_inited = 0;
mbed_official 181:a4cbdfbbd2f4 71 serial_t stdio_uart;
mbed_official 181:a4cbdfbbd2f4 72
mbed_official 181:a4cbdfbbd2f4 73 static void init_uart(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 74 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 75
mbed_official 181:a4cbdfbbd2f4 76 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 181:a4cbdfbbd2f4 77 UartHandle.Init.WordLength = obj->databits;
mbed_official 181:a4cbdfbbd2f4 78 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 181:a4cbdfbbd2f4 79 UartHandle.Init.Parity = obj->parity;
mbed_official 181:a4cbdfbbd2f4 80 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 181:a4cbdfbbd2f4 81 if (obj->rx_pin == NC) {
mbed_official 181:a4cbdfbbd2f4 82 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 181:a4cbdfbbd2f4 83 } else if (obj->tx_pin == NC) {
mbed_official 181:a4cbdfbbd2f4 84 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 181:a4cbdfbbd2f4 85 } else {
mbed_official 181:a4cbdfbbd2f4 86 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 181:a4cbdfbbd2f4 87 }
mbed_official 181:a4cbdfbbd2f4 88
mbed_official 181:a4cbdfbbd2f4 89 HAL_UART_Init(&UartHandle);
mbed_official 181:a4cbdfbbd2f4 90 }
mbed_official 181:a4cbdfbbd2f4 91
mbed_official 181:a4cbdfbbd2f4 92 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 181:a4cbdfbbd2f4 93 //RCC_OscInitTypeDef RCC_OscInitStruct;
mbed_official 181:a4cbdfbbd2f4 94
mbed_official 181:a4cbdfbbd2f4 95 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 181:a4cbdfbbd2f4 96 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 97 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 181:a4cbdfbbd2f4 98
mbed_official 181:a4cbdfbbd2f4 99 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 181:a4cbdfbbd2f4 100 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 181:a4cbdfbbd2f4 101
mbed_official 181:a4cbdfbbd2f4 102 if (obj->uart == (UARTName)NC) {
mbed_official 181:a4cbdfbbd2f4 103 error("Serial error: pinout mapping failed.");
mbed_official 181:a4cbdfbbd2f4 104 }
mbed_official 181:a4cbdfbbd2f4 105
mbed_official 181:a4cbdfbbd2f4 106 // Enable UART clock
mbed_official 181:a4cbdfbbd2f4 107 if (obj->uart == UART_1) {
mbed_official 181:a4cbdfbbd2f4 108 __USART1_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 109 obj->index = 0;
mbed_official 181:a4cbdfbbd2f4 110 }
mbed_official 181:a4cbdfbbd2f4 111
mbed_official 181:a4cbdfbbd2f4 112 if (obj->uart == UART_2) {
mbed_official 181:a4cbdfbbd2f4 113 __USART2_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 114 obj->index = 1;
mbed_official 181:a4cbdfbbd2f4 115 }
mbed_official 181:a4cbdfbbd2f4 116
mbed_official 181:a4cbdfbbd2f4 117 if (obj->uart == LPUART_1) {
mbed_official 181:a4cbdfbbd2f4 118 __LPUART1_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 119 obj->index = 2;
mbed_official 181:a4cbdfbbd2f4 120 /* DEBUG
mbed_official 181:a4cbdfbbd2f4 121 // Enable Power clock
mbed_official 181:a4cbdfbbd2f4 122 __PWR_CLK_ENABLE();
mbed_official 181:a4cbdfbbd2f4 123 // Enable access to Backup domain
mbed_official 181:a4cbdfbbd2f4 124 HAL_PWR_EnableBkUpAccess();
mbed_official 181:a4cbdfbbd2f4 125 // Reset Backup domain
mbed_official 181:a4cbdfbbd2f4 126 __HAL_RCC_BACKUPRESET_FORCE();
mbed_official 181:a4cbdfbbd2f4 127 __HAL_RCC_BACKUPRESET_RELEASE();
mbed_official 181:a4cbdfbbd2f4 128 // Enable LSE Oscillator
mbed_official 181:a4cbdfbbd2f4 129 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
mbed_official 181:a4cbdfbbd2f4 130 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; // Mandatory, otherwise the PLL is reconfigured!
mbed_official 181:a4cbdfbbd2f4 131 RCC_OscInitStruct.LSEState = RCC_LSE_ON; // External 32.768 kHz clock on OSC_IN/OSC_OUT
mbed_official 181:a4cbdfbbd2f4 132 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) == HAL_OK) {
mbed_official 181:a4cbdfbbd2f4 133 }*/
mbed_official 181:a4cbdfbbd2f4 134 }
mbed_official 181:a4cbdfbbd2f4 135
mbed_official 181:a4cbdfbbd2f4 136 // Configure the UART pins
mbed_official 181:a4cbdfbbd2f4 137 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 138 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 181:a4cbdfbbd2f4 139 pin_mode(tx, PullUp);
mbed_official 181:a4cbdfbbd2f4 140 pin_mode(rx, PullUp);
mbed_official 181:a4cbdfbbd2f4 141
mbed_official 181:a4cbdfbbd2f4 142 // Configure UART
mbed_official 181:a4cbdfbbd2f4 143 obj->baudrate = 9600;
mbed_official 181:a4cbdfbbd2f4 144 obj->databits = UART_WORDLENGTH_8B;
mbed_official 181:a4cbdfbbd2f4 145 obj->stopbits = UART_STOPBITS_1;
mbed_official 181:a4cbdfbbd2f4 146 obj->parity = UART_PARITY_NONE;
mbed_official 181:a4cbdfbbd2f4 147 obj->tx_pin = tx;
mbed_official 181:a4cbdfbbd2f4 148 obj->rx_pin = rx;
mbed_official 181:a4cbdfbbd2f4 149
mbed_official 181:a4cbdfbbd2f4 150 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 151
mbed_official 181:a4cbdfbbd2f4 152 // For stdio management
mbed_official 181:a4cbdfbbd2f4 153 if (obj->uart == STDIO_UART) {
mbed_official 181:a4cbdfbbd2f4 154 stdio_uart_inited = 1;
mbed_official 181:a4cbdfbbd2f4 155 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 181:a4cbdfbbd2f4 156 }
mbed_official 181:a4cbdfbbd2f4 157
mbed_official 181:a4cbdfbbd2f4 158 }
mbed_official 181:a4cbdfbbd2f4 159
mbed_official 181:a4cbdfbbd2f4 160 void serial_free(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 161 serial_irq_ids[obj->index] = 0;
mbed_official 181:a4cbdfbbd2f4 162 }
mbed_official 181:a4cbdfbbd2f4 163
mbed_official 181:a4cbdfbbd2f4 164 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 181:a4cbdfbbd2f4 165 obj->baudrate = baudrate;
mbed_official 181:a4cbdfbbd2f4 166 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 167 }
mbed_official 181:a4cbdfbbd2f4 168
mbed_official 181:a4cbdfbbd2f4 169 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 181:a4cbdfbbd2f4 170 if (data_bits == 8) {
mbed_official 181:a4cbdfbbd2f4 171 obj->databits = UART_WORDLENGTH_8B;
mbed_official 181:a4cbdfbbd2f4 172 } else {
mbed_official 181:a4cbdfbbd2f4 173 obj->databits = UART_WORDLENGTH_9B;
mbed_official 181:a4cbdfbbd2f4 174 }
mbed_official 181:a4cbdfbbd2f4 175
mbed_official 181:a4cbdfbbd2f4 176 switch (parity) {
mbed_official 181:a4cbdfbbd2f4 177 case ParityOdd:
mbed_official 181:a4cbdfbbd2f4 178 case ParityForced0:
mbed_official 181:a4cbdfbbd2f4 179 obj->parity = UART_PARITY_ODD;
mbed_official 181:a4cbdfbbd2f4 180 break;
mbed_official 181:a4cbdfbbd2f4 181 case ParityEven:
mbed_official 181:a4cbdfbbd2f4 182 case ParityForced1:
mbed_official 181:a4cbdfbbd2f4 183 obj->parity = UART_PARITY_EVEN;
mbed_official 181:a4cbdfbbd2f4 184 break;
mbed_official 181:a4cbdfbbd2f4 185 default: // ParityNone
mbed_official 181:a4cbdfbbd2f4 186 obj->parity = UART_PARITY_NONE;
mbed_official 181:a4cbdfbbd2f4 187 break;
mbed_official 181:a4cbdfbbd2f4 188 }
mbed_official 181:a4cbdfbbd2f4 189
mbed_official 181:a4cbdfbbd2f4 190 if (stop_bits == 2) {
mbed_official 181:a4cbdfbbd2f4 191 obj->stopbits = UART_STOPBITS_2;
mbed_official 181:a4cbdfbbd2f4 192 } else {
mbed_official 181:a4cbdfbbd2f4 193 obj->stopbits = UART_STOPBITS_1;
mbed_official 181:a4cbdfbbd2f4 194 }
mbed_official 181:a4cbdfbbd2f4 195
mbed_official 181:a4cbdfbbd2f4 196 init_uart(obj);
mbed_official 181:a4cbdfbbd2f4 197 }
mbed_official 181:a4cbdfbbd2f4 198
mbed_official 181:a4cbdfbbd2f4 199 /******************************************************************************
mbed_official 181:a4cbdfbbd2f4 200 * INTERRUPTS HANDLING
mbed_official 181:a4cbdfbbd2f4 201 ******************************************************************************/
mbed_official 181:a4cbdfbbd2f4 202
mbed_official 181:a4cbdfbbd2f4 203 static void uart_irq(UARTName name, int id) {
mbed_official 181:a4cbdfbbd2f4 204 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 181:a4cbdfbbd2f4 205 if (serial_irq_ids[id] != 0) {
mbed_official 181:a4cbdfbbd2f4 206 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 181:a4cbdfbbd2f4 207 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 181:a4cbdfbbd2f4 208 __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
mbed_official 181:a4cbdfbbd2f4 209 }
mbed_official 181:a4cbdfbbd2f4 210 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 181:a4cbdfbbd2f4 211 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 181:a4cbdfbbd2f4 212 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 181:a4cbdfbbd2f4 213 }
mbed_official 181:a4cbdfbbd2f4 214 }
mbed_official 181:a4cbdfbbd2f4 215 }
mbed_official 181:a4cbdfbbd2f4 216
mbed_official 181:a4cbdfbbd2f4 217 static void uart1_irq(void) {
mbed_official 181:a4cbdfbbd2f4 218 uart_irq(UART_1, 0);
mbed_official 181:a4cbdfbbd2f4 219 }
mbed_official 181:a4cbdfbbd2f4 220 static void uart2_irq(void) {
mbed_official 181:a4cbdfbbd2f4 221 uart_irq(UART_2, 1);
mbed_official 181:a4cbdfbbd2f4 222 }
mbed_official 181:a4cbdfbbd2f4 223 static void lpuart1_irq(void) {
mbed_official 181:a4cbdfbbd2f4 224 uart_irq(LPUART_1, 2);
mbed_official 181:a4cbdfbbd2f4 225 }
mbed_official 181:a4cbdfbbd2f4 226
mbed_official 181:a4cbdfbbd2f4 227 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 181:a4cbdfbbd2f4 228 irq_handler = handler;
mbed_official 181:a4cbdfbbd2f4 229 serial_irq_ids[obj->index] = id;
mbed_official 181:a4cbdfbbd2f4 230 }
mbed_official 181:a4cbdfbbd2f4 231
mbed_official 181:a4cbdfbbd2f4 232 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 181:a4cbdfbbd2f4 233 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 181:a4cbdfbbd2f4 234 uint32_t vector = 0;
mbed_official 181:a4cbdfbbd2f4 235
mbed_official 181:a4cbdfbbd2f4 236 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 237
mbed_official 181:a4cbdfbbd2f4 238 if (obj->uart == UART_1) {
mbed_official 181:a4cbdfbbd2f4 239 irq_n = USART1_IRQn;
mbed_official 181:a4cbdfbbd2f4 240 vector = (uint32_t)&uart1_irq;
mbed_official 181:a4cbdfbbd2f4 241 }
mbed_official 181:a4cbdfbbd2f4 242
mbed_official 181:a4cbdfbbd2f4 243 if (obj->uart == UART_2) {
mbed_official 181:a4cbdfbbd2f4 244 irq_n = USART2_IRQn;
mbed_official 181:a4cbdfbbd2f4 245 vector = (uint32_t)&uart2_irq;
mbed_official 181:a4cbdfbbd2f4 246 }
mbed_official 181:a4cbdfbbd2f4 247
mbed_official 181:a4cbdfbbd2f4 248 if (obj->uart == LPUART_1) {
mbed_official 181:a4cbdfbbd2f4 249 irq_n = RNG_LPUART1_IRQn;
mbed_official 181:a4cbdfbbd2f4 250 vector = (uint32_t)&lpuart1_irq;
mbed_official 181:a4cbdfbbd2f4 251 }
mbed_official 181:a4cbdfbbd2f4 252
mbed_official 181:a4cbdfbbd2f4 253 if (enable) {
mbed_official 181:a4cbdfbbd2f4 254
mbed_official 181:a4cbdfbbd2f4 255 if (irq == RxIrq) {
mbed_official 181:a4cbdfbbd2f4 256 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 181:a4cbdfbbd2f4 257 } else { // TxIrq
mbed_official 181:a4cbdfbbd2f4 258 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 181:a4cbdfbbd2f4 259 }
mbed_official 181:a4cbdfbbd2f4 260
mbed_official 181:a4cbdfbbd2f4 261 NVIC_SetVector(irq_n, vector);
mbed_official 181:a4cbdfbbd2f4 262 NVIC_EnableIRQ(irq_n);
mbed_official 181:a4cbdfbbd2f4 263
mbed_official 181:a4cbdfbbd2f4 264 } else { // disable
mbed_official 181:a4cbdfbbd2f4 265
mbed_official 181:a4cbdfbbd2f4 266 int all_disabled = 0;
mbed_official 181:a4cbdfbbd2f4 267
mbed_official 181:a4cbdfbbd2f4 268 if (irq == RxIrq) {
mbed_official 181:a4cbdfbbd2f4 269 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 181:a4cbdfbbd2f4 270 // Check if TxIrq is disabled too
mbed_official 181:a4cbdfbbd2f4 271 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 181:a4cbdfbbd2f4 272 } else { // TxIrq
mbed_official 181:a4cbdfbbd2f4 273 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 181:a4cbdfbbd2f4 274 // Check if RxIrq is disabled too
mbed_official 181:a4cbdfbbd2f4 275 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 181:a4cbdfbbd2f4 276 }
mbed_official 181:a4cbdfbbd2f4 277
mbed_official 181:a4cbdfbbd2f4 278 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 181:a4cbdfbbd2f4 279
mbed_official 181:a4cbdfbbd2f4 280 }
mbed_official 181:a4cbdfbbd2f4 281 }
mbed_official 181:a4cbdfbbd2f4 282
mbed_official 181:a4cbdfbbd2f4 283 /******************************************************************************
mbed_official 181:a4cbdfbbd2f4 284 * READ/WRITE
mbed_official 181:a4cbdfbbd2f4 285 ******************************************************************************/
mbed_official 181:a4cbdfbbd2f4 286
mbed_official 181:a4cbdfbbd2f4 287 int serial_getc(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 288 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 289 while (!serial_readable(obj));
mbed_official 181:a4cbdfbbd2f4 290 return (int)(uart->RDR & 0xFF);
mbed_official 181:a4cbdfbbd2f4 291 }
mbed_official 181:a4cbdfbbd2f4 292
mbed_official 181:a4cbdfbbd2f4 293 void serial_putc(serial_t *obj, int c) {
mbed_official 181:a4cbdfbbd2f4 294 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 295 while (!serial_writable(obj));
mbed_official 181:a4cbdfbbd2f4 296 uart->TDR = (uint32_t)(c & 0xFF);
mbed_official 181:a4cbdfbbd2f4 297 }
mbed_official 181:a4cbdfbbd2f4 298
mbed_official 181:a4cbdfbbd2f4 299 int serial_readable(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 300 int status;
mbed_official 181:a4cbdfbbd2f4 301 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 302 // Check if data is received
mbed_official 181:a4cbdfbbd2f4 303 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 181:a4cbdfbbd2f4 304 return status;
mbed_official 181:a4cbdfbbd2f4 305 }
mbed_official 181:a4cbdfbbd2f4 306
mbed_official 181:a4cbdfbbd2f4 307 int serial_writable(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 308 int status;
mbed_official 181:a4cbdfbbd2f4 309 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 310 // Check if data is transmitted
mbed_official 181:a4cbdfbbd2f4 311 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 181:a4cbdfbbd2f4 312 return status;
mbed_official 181:a4cbdfbbd2f4 313 }
mbed_official 181:a4cbdfbbd2f4 314
mbed_official 181:a4cbdfbbd2f4 315 void serial_clear(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 316 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 317 __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
mbed_official 181:a4cbdfbbd2f4 318 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 181:a4cbdfbbd2f4 319 }
mbed_official 181:a4cbdfbbd2f4 320
mbed_official 181:a4cbdfbbd2f4 321 void serial_pinout_tx(PinName tx) {
mbed_official 181:a4cbdfbbd2f4 322 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 181:a4cbdfbbd2f4 323 }
mbed_official 181:a4cbdfbbd2f4 324
mbed_official 181:a4cbdfbbd2f4 325 void serial_break_set(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 326 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 181:a4cbdfbbd2f4 327 __HAL_UART_SEND_REQ(&UartHandle, UART_SENDBREAK_REQUEST);
mbed_official 181:a4cbdfbbd2f4 328 }
mbed_official 181:a4cbdfbbd2f4 329
mbed_official 181:a4cbdfbbd2f4 330 void serial_break_clear(serial_t *obj) {
mbed_official 181:a4cbdfbbd2f4 331 }
mbed_official 181:a4cbdfbbd2f4 332
mbed_official 181:a4cbdfbbd2f4 333 #endif