Eric Lewiston / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_WIZNET/TARGET_W7500x/serial_api.c@631:ff681937ffd8, 2015-09-28 (annotated)

Committer:
mbed_official
Date:
Mon Sep 28 13:00:10 2015 +0100
Revision:
631:ff681937ffd8
Parent:
619:034e698bc035 
Synchronized with git revision 1be56c8134a3ed6004f149a84f658de45dda6a5c



Full URL: https://github.com/mbedmicro/mbed/commit/1be56c8134a3ed6004f149a84f658de45dda6a5c/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 558:0880f51c4036 1 /* mbed Microcontroller Library
mbed_official 558:0880f51c4036 2 *******************************************************************************
mbed_official 558:0880f51c4036 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
mbed_official 558:0880f51c4036 4 * All rights reserved.
mbed_official 558:0880f51c4036 5 *
mbed_official 558:0880f51c4036 6 * Redistribution and use in source and binary forms, with or without
mbed_official 558:0880f51c4036 7 * modification, are permitted provided that the following conditions are met:
mbed_official 558:0880f51c4036 8 *
mbed_official 558:0880f51c4036 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 558:0880f51c4036 10 * this list of conditions and the following disclaimer.
mbed_official 558:0880f51c4036 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 558:0880f51c4036 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 558:0880f51c4036 13 * and/or other materials provided with the distribution.
mbed_official 558:0880f51c4036 14 * 3. Neither the name of ARM Limited nor the names of its contributors
mbed_official 558:0880f51c4036 15 * may be used to endorse or promote products derived from this software
mbed_official 558:0880f51c4036 16 * without specific prior written permission.
mbed_official 558:0880f51c4036 17 *
mbed_official 558:0880f51c4036 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 558:0880f51c4036 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 558:0880f51c4036 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 558:0880f51c4036 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 558:0880f51c4036 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 558:0880f51c4036 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 558:0880f51c4036 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 558:0880f51c4036 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 558:0880f51c4036 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 558:0880f51c4036 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 558:0880f51c4036 28 *******************************************************************************
mbed_official 558:0880f51c4036 29 */
mbed_official 558:0880f51c4036 30
mbed_official 558:0880f51c4036 31 #include "mbed_assert.h"
mbed_official 558:0880f51c4036 32 #include "serial_api.h"
mbed_official 558:0880f51c4036 33
mbed_official 558:0880f51c4036 34 #if DEVICE_SERIAL
mbed_official 558:0880f51c4036 35
mbed_official 558:0880f51c4036 36 #include "cmsis.h"
mbed_official 558:0880f51c4036 37 #include "pinmap.h"
mbed_official 558:0880f51c4036 38 #include <string.h>
mbed_official 558:0880f51c4036 39 #include "PeripheralPins.h"
mbed_official 619:034e698bc035 40 #include "W7500x_uart.h"
mbed_official 558:0880f51c4036 41
mbed_official 631:ff681937ffd8 42 #define UART_NUM (3)
mbed_official 558:0880f51c4036 43
mbed_official 631:ff681937ffd8 44 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 558:0880f51c4036 45
mbed_official 558:0880f51c4036 46
mbed_official 558:0880f51c4036 47 static uart_irq_handler irq_handler;
mbed_official 558:0880f51c4036 48 static UART_TypeDef *UART;
mbed_official 558:0880f51c4036 49
mbed_official 558:0880f51c4036 50
mbed_official 558:0880f51c4036 51 UART_InitTypeDef UART_InitStructure;
mbed_official 558:0880f51c4036 52
mbed_official 558:0880f51c4036 53 int stdio_uart_inited = 0;
mbed_official 558:0880f51c4036 54 serial_t stdio_uart;
mbed_official 558:0880f51c4036 55
mbed_official 558:0880f51c4036 56 static void init_uart(serial_t *obj)
mbed_official 558:0880f51c4036 57 {
mbed_official 631:ff681937ffd8 58 if(obj->index == 2) // For UART2, It is simple UART.
mbed_official 631:ff681937ffd8 59 {
mbed_official 631:ff681937ffd8 60 SystemCoreClockUpdate();
mbed_official 631:ff681937ffd8 61 //S_UART_Init(obj->baudrate);
mbed_official 631:ff681937ffd8 62 S_UART_SetCTRL((S_UART_CTRL_RX_EN|S_UART_CTRL_TX_EN), DISABLE);
mbed_official 631:ff681937ffd8 63 S_UART_SetBaud(obj->baudrate);
mbed_official 631:ff681937ffd8 64
mbed_official 631:ff681937ffd8 65 if(obj->pin_rx == NC)
mbed_official 631:ff681937ffd8 66 {
mbed_official 631:ff681937ffd8 67 S_UART_SetCTRL(S_UART_CTRL_TX_EN, ENABLE);
mbed_official 631:ff681937ffd8 68 }
mbed_official 631:ff681937ffd8 69 else if(obj->pin_tx == NC)
mbed_official 631:ff681937ffd8 70 {
mbed_official 631:ff681937ffd8 71 S_UART_SetCTRL(S_UART_CTRL_RX_EN, ENABLE);
mbed_official 631:ff681937ffd8 72 }
mbed_official 631:ff681937ffd8 73 else
mbed_official 631:ff681937ffd8 74 {
mbed_official 631:ff681937ffd8 75 S_UART_SetCTRL((S_UART_CTRL_TX_EN|S_UART_CTRL_RX_EN),ENABLE);
mbed_official 631:ff681937ffd8 76 }
mbed_official 631:ff681937ffd8 77 }
mbed_official 631:ff681937ffd8 78 else // For UART0 and UART1.
mbed_official 631:ff681937ffd8 79 {
mbed_official 631:ff681937ffd8 80 UART = (UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 81 UART_InitStructure.UART_BaudRate = obj->baudrate;
mbed_official 631:ff681937ffd8 82 UART_InitStructure.UART_WordLength = obj->databits;
mbed_official 631:ff681937ffd8 83 UART_InitStructure.UART_StopBits = obj->stopbits;
mbed_official 631:ff681937ffd8 84 UART_InitStructure.UART_Parity = obj->parity;
mbed_official 631:ff681937ffd8 85 UART_InitStructure.UART_HardwareFlowControl = UART_HardwareFlowControl_None;
mbed_official 558:0880f51c4036 86
mbed_official 558:0880f51c4036 87
mbed_official 631:ff681937ffd8 88 if (obj->pin_rx == NC) {
mbed_official 631:ff681937ffd8 89 UART_InitStructure.UART_Mode = UART_Mode_Tx;
mbed_official 631:ff681937ffd8 90 } else if (obj->pin_tx == NC) {
mbed_official 631:ff681937ffd8 91 UART_InitStructure.UART_Mode = UART_Mode_Rx;
mbed_official 631:ff681937ffd8 92 } else {
mbed_official 631:ff681937ffd8 93 UART_InitStructure.UART_Mode = (UART_Mode_Rx | UART_Mode_Tx);
mbed_official 631:ff681937ffd8 94 }
mbed_official 631:ff681937ffd8 95
mbed_official 631:ff681937ffd8 96 UART_Init(UART,&UART_InitStructure);
mbed_official 558:0880f51c4036 97 }
mbed_official 558:0880f51c4036 98 }
mbed_official 558:0880f51c4036 99
mbed_official 558:0880f51c4036 100 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 558:0880f51c4036 101 {
mbed_official 558:0880f51c4036 102 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 558:0880f51c4036 103 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 558:0880f51c4036 104 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 558:0880f51c4036 105
mbed_official 558:0880f51c4036 106 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 558:0880f51c4036 107 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 558:0880f51c4036 108
mbed_official 558:0880f51c4036 109 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 558:0880f51c4036 110
mbed_official 558:0880f51c4036 111 // Enable USART clock
mbed_official 558:0880f51c4036 112 if (obj->uart == UART_0) {
mbed_official 558:0880f51c4036 113 obj->index = 0;
mbed_official 558:0880f51c4036 114 }
mbed_official 558:0880f51c4036 115
mbed_official 558:0880f51c4036 116 if (obj->uart == UART_1) {
mbed_official 558:0880f51c4036 117 obj->index = 1;
mbed_official 558:0880f51c4036 118 }
mbed_official 558:0880f51c4036 119
mbed_official 631:ff681937ffd8 120 if (obj->uart == UART_2) {
mbed_official 631:ff681937ffd8 121 obj->index = 2;
mbed_official 631:ff681937ffd8 122 }
mbed_official 631:ff681937ffd8 123
mbed_official 558:0880f51c4036 124 // Configure the UART pins
mbed_official 558:0880f51c4036 125 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 558:0880f51c4036 126 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 558:0880f51c4036 127 if (tx != NC) {
mbed_official 558:0880f51c4036 128 pin_mode(tx, PullUp);
mbed_official 558:0880f51c4036 129 }
mbed_official 558:0880f51c4036 130 if (rx != NC) {
mbed_official 558:0880f51c4036 131 pin_mode(rx, PullUp);
mbed_official 558:0880f51c4036 132 }
mbed_official 558:0880f51c4036 133
mbed_official 558:0880f51c4036 134 // Configure UART
mbed_official 558:0880f51c4036 135 obj->baudrate = 9600;
mbed_official 558:0880f51c4036 136 obj->databits = UART_WordLength_8b;
mbed_official 558:0880f51c4036 137 obj->stopbits = UART_StopBits_1;
mbed_official 558:0880f51c4036 138 obj->parity = UART_Parity_No;
mbed_official 558:0880f51c4036 139
mbed_official 558:0880f51c4036 140 obj->pin_tx = tx;
mbed_official 558:0880f51c4036 141 obj->pin_rx = rx;
mbed_official 558:0880f51c4036 142
mbed_official 558:0880f51c4036 143
mbed_official 558:0880f51c4036 144 init_uart(obj);
mbed_official 558:0880f51c4036 145
mbed_official 558:0880f51c4036 146 // For stdio management
mbed_official 558:0880f51c4036 147 if (obj->uart == STDIO_UART) {
mbed_official 558:0880f51c4036 148 stdio_uart_inited = 1;
mbed_official 558:0880f51c4036 149 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 558:0880f51c4036 150 }
mbed_official 558:0880f51c4036 151 }
mbed_official 558:0880f51c4036 152
mbed_official 558:0880f51c4036 153 void serial_free(serial_t *obj)
mbed_official 558:0880f51c4036 154 {
mbed_official 558:0880f51c4036 155 // Reset UART and disable clock
mbed_official 558:0880f51c4036 156 if (obj->uart == UART_0) {
mbed_official 558:0880f51c4036 157 }
mbed_official 558:0880f51c4036 158
mbed_official 558:0880f51c4036 159 if (obj->uart == UART_1) {
mbed_official 558:0880f51c4036 160 }
mbed_official 631:ff681937ffd8 161 if (obj->uart == UART_2) {
mbed_official 631:ff681937ffd8 162 }
mbed_official 558:0880f51c4036 163
mbed_official 558:0880f51c4036 164 serial_irq_ids[obj->index] = 0;
mbed_official 558:0880f51c4036 165 }
mbed_official 558:0880f51c4036 166
mbed_official 558:0880f51c4036 167 void serial_baud(serial_t *obj, int baudrate)
mbed_official 558:0880f51c4036 168 {
mbed_official 558:0880f51c4036 169 obj->baudrate = baudrate;
mbed_official 558:0880f51c4036 170 init_uart(obj);
mbed_official 558:0880f51c4036 171 }
mbed_official 558:0880f51c4036 172
mbed_official 558:0880f51c4036 173 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 558:0880f51c4036 174 {
mbed_official 558:0880f51c4036 175 if (data_bits == 7) {
mbed_official 558:0880f51c4036 176 obj->databits = UART_WordLength_7b;
mbed_official 558:0880f51c4036 177 } else {
mbed_official 558:0880f51c4036 178 obj->databits = UART_WordLength_8b;
mbed_official 558:0880f51c4036 179 }
mbed_official 558:0880f51c4036 180
mbed_official 558:0880f51c4036 181 switch (parity) {
mbed_official 558:0880f51c4036 182 case ParityOdd:
mbed_official 558:0880f51c4036 183 case ParityForced0:
mbed_official 558:0880f51c4036 184 obj->parity = UART_Parity_Odd;
mbed_official 558:0880f51c4036 185 break;
mbed_official 558:0880f51c4036 186 case ParityEven:
mbed_official 558:0880f51c4036 187 case ParityForced1:
mbed_official 558:0880f51c4036 188 obj->parity = UART_Parity_Even;
mbed_official 558:0880f51c4036 189 break;
mbed_official 558:0880f51c4036 190 default: // ParityNone
mbed_official 558:0880f51c4036 191 obj->parity = UART_Parity_No;
mbed_official 558:0880f51c4036 192 break;
mbed_official 558:0880f51c4036 193 }
mbed_official 558:0880f51c4036 194
mbed_official 558:0880f51c4036 195 if (stop_bits == 2) {
mbed_official 558:0880f51c4036 196 obj->stopbits = UART_StopBits_2;
mbed_official 558:0880f51c4036 197 } else {
mbed_official 558:0880f51c4036 198 obj->stopbits = UART_StopBits_1;
mbed_official 558:0880f51c4036 199 }
mbed_official 558:0880f51c4036 200
mbed_official 558:0880f51c4036 201 init_uart(obj);
mbed_official 558:0880f51c4036 202 }
mbed_official 558:0880f51c4036 203
mbed_official 558:0880f51c4036 204 /******************************************************************************
mbed_official 558:0880f51c4036 205 * INTERRUPTS HANDLING
mbed_official 558:0880f51c4036 206 ******************************************************************************/
mbed_official 558:0880f51c4036 207
mbed_official 558:0880f51c4036 208 static void uart_irq(UARTName name, int id)
mbed_official 558:0880f51c4036 209 {
mbed_official 558:0880f51c4036 210 UART = (UART_TypeDef *)name;
mbed_official 558:0880f51c4036 211 if (serial_irq_ids[id] != 0) {
mbed_official 558:0880f51c4036 212 if( UART_GetITStatus(UART,UART_IT_FLAG_TXI) != RESET ){
mbed_official 558:0880f51c4036 213 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 558:0880f51c4036 214 UART_ClearITPendingBit(UART,UART_IT_FLAG_TXI);
mbed_official 558:0880f51c4036 215 }
mbed_official 558:0880f51c4036 216 if( UART_GetITStatus(UART,UART_IT_FLAG_RXI) != RESET ){
mbed_official 558:0880f51c4036 217 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 558:0880f51c4036 218 }
mbed_official 558:0880f51c4036 219 }
mbed_official 558:0880f51c4036 220 }
mbed_official 558:0880f51c4036 221
mbed_official 631:ff681937ffd8 222 static void uart2_irq()
mbed_official 631:ff681937ffd8 223 {
mbed_official 631:ff681937ffd8 224 if(serial_irq_ids[2] != 0){
mbed_official 631:ff681937ffd8 225 if( S_UART_GetITStatus(S_UART_INTSTATUS_TXI) != RESET ){
mbed_official 631:ff681937ffd8 226 S_UART_ClearITPendingBit(S_UART_INTSTATUS_TXI);
mbed_official 631:ff681937ffd8 227 irq_handler(serial_irq_ids[2], TxIrq);
mbed_official 631:ff681937ffd8 228 }
mbed_official 631:ff681937ffd8 229 if( S_UART_GetITStatus(S_UART_INTSTATUS_RXI) != RESET ) {
mbed_official 631:ff681937ffd8 230 S_UART_ClearITPendingBit(S_UART_INTSTATUS_RXI);
mbed_official 631:ff681937ffd8 231 irq_handler(serial_irq_ids[2], RxIrq);
mbed_official 631:ff681937ffd8 232 }
mbed_official 631:ff681937ffd8 233 }
mbed_official 631:ff681937ffd8 234 }
mbed_official 631:ff681937ffd8 235
mbed_official 558:0880f51c4036 236 #ifdef __cplusplus
mbed_official 558:0880f51c4036 237 extern "C"{
mbed_official 558:0880f51c4036 238 #endif
mbed_official 558:0880f51c4036 239 void UART0_Handler()
mbed_official 558:0880f51c4036 240 {
mbed_official 558:0880f51c4036 241 uart_irq(UART_0, 0);
mbed_official 558:0880f51c4036 242 }
mbed_official 558:0880f51c4036 243
mbed_official 558:0880f51c4036 244 void UART1_Handler()
mbed_official 558:0880f51c4036 245 {
mbed_official 558:0880f51c4036 246 uart_irq(UART_1, 1);
mbed_official 558:0880f51c4036 247 }
mbed_official 631:ff681937ffd8 248
mbed_official 631:ff681937ffd8 249 void UART2_Handler()
mbed_official 631:ff681937ffd8 250 {
mbed_official 631:ff681937ffd8 251 uart2_irq();
mbed_official 631:ff681937ffd8 252 }
mbed_official 558:0880f51c4036 253 #ifdef __cplusplus
mbed_official 558:0880f51c4036 254 }
mbed_official 558:0880f51c4036 255 #endif
mbed_official 558:0880f51c4036 256
mbed_official 558:0880f51c4036 257
mbed_official 558:0880f51c4036 258 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 558:0880f51c4036 259 {
mbed_official 558:0880f51c4036 260 irq_handler = handler;
mbed_official 558:0880f51c4036 261 serial_irq_ids[obj->index] = id;
mbed_official 558:0880f51c4036 262 }
mbed_official 558:0880f51c4036 263
mbed_official 558:0880f51c4036 264 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 558:0880f51c4036 265 {
mbed_official 558:0880f51c4036 266 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 558:0880f51c4036 267
mbed_official 558:0880f51c4036 268
mbed_official 631:ff681937ffd8 269 if (obj->uart == UART_2)
mbed_official 631:ff681937ffd8 270 {
mbed_official 631:ff681937ffd8 271 irq_n = UART2_IRQn;
mbed_official 558:0880f51c4036 272
mbed_official 631:ff681937ffd8 273 if (enable){
mbed_official 631:ff681937ffd8 274 if (irq == RxIrq){
mbed_official 631:ff681937ffd8 275 S_UART_ITConfig(S_UART_CTRL_RXI,ENABLE);
mbed_official 631:ff681937ffd8 276 } else {
mbed_official 631:ff681937ffd8 277 S_UART_ITConfig(S_UART_CTRL_TXI,ENABLE);
mbed_official 631:ff681937ffd8 278 }
mbed_official 631:ff681937ffd8 279 NVIC_ClearPendingIRQ(irq_n);
mbed_official 631:ff681937ffd8 280 NVIC_EnableIRQ(irq_n);
mbed_official 631:ff681937ffd8 281 } else { // disable
mbed_official 631:ff681937ffd8 282 S_UART_ITConfig((S_UART_CTRL_RXI|S_UART_CTRL_TXI),DISABLE);
mbed_official 631:ff681937ffd8 283 NVIC_DisableIRQ(irq_n);
mbed_official 631:ff681937ffd8 284 }
mbed_official 558:0880f51c4036 285 }
mbed_official 631:ff681937ffd8 286 else
mbed_official 631:ff681937ffd8 287 {
mbed_official 631:ff681937ffd8 288 UART = (UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 289
mbed_official 631:ff681937ffd8 290 if (obj->uart == UART_0) {
mbed_official 631:ff681937ffd8 291 irq_n = UART0_IRQn;
mbed_official 558:0880f51c4036 292 }
mbed_official 558:0880f51c4036 293
mbed_official 631:ff681937ffd8 294 if (obj->uart == UART_1) {
mbed_official 631:ff681937ffd8 295 irq_n = UART1_IRQn;
mbed_official 631:ff681937ffd8 296 }
mbed_official 631:ff681937ffd8 297
mbed_official 631:ff681937ffd8 298 if (enable) {
mbed_official 631:ff681937ffd8 299 if (irq == RxIrq) {
mbed_official 631:ff681937ffd8 300 UART_ITConfig(UART,UART_IT_FLAG_RXI,ENABLE);
mbed_official 631:ff681937ffd8 301 } else { // TxIrq
mbed_official 631:ff681937ffd8 302 UART_ITConfig(UART,UART_IT_FLAG_TXI,ENABLE);
mbed_official 631:ff681937ffd8 303 }
mbed_official 631:ff681937ffd8 304
mbed_official 631:ff681937ffd8 305 NVIC_ClearPendingIRQ(irq_n);
mbed_official 631:ff681937ffd8 306 NVIC_EnableIRQ(irq_n);
mbed_official 631:ff681937ffd8 307 } else { // disable
mbed_official 631:ff681937ffd8 308 UART_ITConfig(UART,(UART_IT_FLAG_RXI|UART_IT_FLAG_TXI),DISABLE);
mbed_official 631:ff681937ffd8 309 NVIC_DisableIRQ(irq_n);
mbed_official 631:ff681937ffd8 310 }
mbed_official 558:0880f51c4036 311 }
mbed_official 558:0880f51c4036 312 }
mbed_official 558:0880f51c4036 313
mbed_official 558:0880f51c4036 314 /******************************************************************************
mbed_official 558:0880f51c4036 315 * READ/WRITE
mbed_official 558:0880f51c4036 316 ******************************************************************************/
mbed_official 558:0880f51c4036 317
mbed_official 558:0880f51c4036 318 int serial_getc(serial_t *obj)
mbed_official 558:0880f51c4036 319 {
mbed_official 631:ff681937ffd8 320 if (obj->uart == UART_2)
mbed_official 631:ff681937ffd8 321 {
mbed_official 631:ff681937ffd8 322 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
mbed_official 558:0880f51c4036 323
mbed_official 631:ff681937ffd8 324 while( (uart->STATE & S_UART_STATE_RX_BUF_FULL) == 0 );
mbed_official 631:ff681937ffd8 325 return (uint16_t)(uart->DATA);
mbed_official 631:ff681937ffd8 326 }
mbed_official 631:ff681937ffd8 327 else
mbed_official 631:ff681937ffd8 328 {
mbed_official 631:ff681937ffd8 329 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 330 while(uart->FR & UART_FR_RXFE);
mbed_official 631:ff681937ffd8 331
mbed_official 631:ff681937ffd8 332 return (uart->DR & 0xFF);
mbed_official 631:ff681937ffd8 333 }
mbed_official 558:0880f51c4036 334 }
mbed_official 558:0880f51c4036 335
mbed_official 558:0880f51c4036 336 void serial_putc(serial_t *obj, int c)
mbed_official 558:0880f51c4036 337 {
mbed_official 631:ff681937ffd8 338 if (obj->uart == UART_2)
mbed_official 631:ff681937ffd8 339 {
mbed_official 631:ff681937ffd8 340 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
mbed_official 558:0880f51c4036 341
mbed_official 631:ff681937ffd8 342 while(uart->STATE & S_UART_STATE_TX_BUF_FULL);
mbed_official 631:ff681937ffd8 343 uart->DATA = (uint32_t)(c & (uint16_t)0xFF);
mbed_official 631:ff681937ffd8 344 }
mbed_official 631:ff681937ffd8 345 else
mbed_official 631:ff681937ffd8 346 {
mbed_official 631:ff681937ffd8 347 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 348
mbed_official 631:ff681937ffd8 349 uart->DR = (uint32_t)(c & (uint16_t)0xFF);
mbed_official 631:ff681937ffd8 350 while(uart->FR & UART_FR_BUSY);
mbed_official 631:ff681937ffd8 351 }
mbed_official 558:0880f51c4036 352 }
mbed_official 558:0880f51c4036 353
mbed_official 558:0880f51c4036 354 int serial_readable(serial_t *obj)
mbed_official 558:0880f51c4036 355 {
mbed_official 558:0880f51c4036 356 int status;
mbed_official 631:ff681937ffd8 357
mbed_official 631:ff681937ffd8 358 if (obj->uart == UART_2)
mbed_official 631:ff681937ffd8 359 {
mbed_official 631:ff681937ffd8 360 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 361 status = ((uart->STATE & S_UART_STATE_RX_BUF_FULL) ? 1 : 0);
mbed_official 631:ff681937ffd8 362 }
mbed_official 631:ff681937ffd8 363 else
mbed_official 631:ff681937ffd8 364 {
mbed_official 631:ff681937ffd8 365 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 366 // Check if data is received
mbed_official 631:ff681937ffd8 367 status = ((uart->FR & UART_FR_RXFE) ? 0: 1);
mbed_official 631:ff681937ffd8 368 }
mbed_official 631:ff681937ffd8 369
mbed_official 558:0880f51c4036 370 return status;
mbed_official 558:0880f51c4036 371 }
mbed_official 558:0880f51c4036 372
mbed_official 558:0880f51c4036 373 int serial_writable(serial_t *obj)
mbed_official 558:0880f51c4036 374 {
mbed_official 558:0880f51c4036 375 int status;
mbed_official 631:ff681937ffd8 376
mbed_official 631:ff681937ffd8 377 if (obj->uart == UART_2)
mbed_official 631:ff681937ffd8 378 {
mbed_official 631:ff681937ffd8 379 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 380 status = ((uart->STATE & S_UART_STATE_TX_BUF_FULL) ? 0 : 1);
mbed_official 631:ff681937ffd8 381 }
mbed_official 631:ff681937ffd8 382 else
mbed_official 631:ff681937ffd8 383 {
mbed_official 631:ff681937ffd8 384 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
mbed_official 631:ff681937ffd8 385 // Check if data is transmitted
mbed_official 631:ff681937ffd8 386 status = ((uart->FR & UART_FR_BUSY) ? 0: 1);
mbed_official 631:ff681937ffd8 387 }
mbed_official 558:0880f51c4036 388 return status;
mbed_official 558:0880f51c4036 389 }
mbed_official 558:0880f51c4036 390
mbed_official 558:0880f51c4036 391 void serial_clear(serial_t *obj)
mbed_official 558:0880f51c4036 392 {
mbed_official 558:0880f51c4036 393 // UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 558:0880f51c4036 394 // __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 558:0880f51c4036 395 // __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 558:0880f51c4036 396 }
mbed_official 558:0880f51c4036 397
mbed_official 558:0880f51c4036 398 void serial_pinout_tx(PinName tx)
mbed_official 558:0880f51c4036 399 {
mbed_official 558:0880f51c4036 400 //pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 558:0880f51c4036 401 }
mbed_official 558:0880f51c4036 402
mbed_official 558:0880f51c4036 403 void serial_break_set(serial_t *obj)
mbed_official 558:0880f51c4036 404 {
mbed_official 558:0880f51c4036 405 // [TODO]
mbed_official 558:0880f51c4036 406 }
mbed_official 558:0880f51c4036 407
mbed_official 558:0880f51c4036 408 void serial_break_clear(serial_t *obj)
mbed_official 558:0880f51c4036 409 {
mbed_official 558:0880f51c4036 410 // [TODO]
mbed_official 558:0880f51c4036 411 }
mbed_official 558:0880f51c4036 412
mbed_official 558:0880f51c4036 413 #endif