Amit Gandhi / sensen_copy_2

t

Fork of mbed-dev by mbed official

targets/hal/TARGET_WIZNET/TARGET_W7500x/serial_api.c@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 *******************************************************************************
bogdanm 0:9b334a45a8ff 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
bogdanm 0:9b334a45a8ff 4 * All rights reserved.
bogdanm 0:9b334a45a8ff 5 *
bogdanm 0:9b334a45a8ff 6 * Redistribution and use in source and binary forms, with or without
bogdanm 0:9b334a45a8ff 7 * modification, are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 8 *
bogdanm 0:9b334a45a8ff 9 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 10 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 12 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 13 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 14 * 3. Neither the name of ARM Limited nor the names of its contributors
bogdanm 0:9b334a45a8ff 15 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 16 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 17 *
bogdanm 0:9b334a45a8ff 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 28 *******************************************************************************
bogdanm 0:9b334a45a8ff 29 */
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 #include "mbed_assert.h"
bogdanm 0:9b334a45a8ff 32 #include "serial_api.h"
bogdanm 0:9b334a45a8ff 33
bogdanm 0:9b334a45a8ff 34 #if DEVICE_SERIAL
bogdanm 0:9b334a45a8ff 35
bogdanm 0:9b334a45a8ff 36 #include "cmsis.h"
bogdanm 0:9b334a45a8ff 37 #include "pinmap.h"
bogdanm 0:9b334a45a8ff 38 #include <string.h>
bogdanm 0:9b334a45a8ff 39 #include "PeripheralPins.h"
bogdanm 0:9b334a45a8ff 40 #include "W7500x_uart.h"
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 #define UART_NUM (3)
bogdanm 0:9b334a45a8ff 43
bogdanm 0:9b334a45a8ff 44 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
bogdanm 0:9b334a45a8ff 45
bogdanm 0:9b334a45a8ff 46
bogdanm 0:9b334a45a8ff 47 static uart_irq_handler irq_handler;
bogdanm 0:9b334a45a8ff 48 static UART_TypeDef *UART;
bogdanm 0:9b334a45a8ff 49
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 UART_InitTypeDef UART_InitStructure;
bogdanm 0:9b334a45a8ff 52
bogdanm 0:9b334a45a8ff 53 int stdio_uart_inited = 0;
bogdanm 0:9b334a45a8ff 54 serial_t stdio_uart;
bogdanm 0:9b334a45a8ff 55
bogdanm 0:9b334a45a8ff 56 static void init_uart(serial_t *obj)
bogdanm 0:9b334a45a8ff 57 {
bogdanm 0:9b334a45a8ff 58 if(obj->index == 2) // For UART2, It is simple UART.
bogdanm 0:9b334a45a8ff 59 {
bogdanm 0:9b334a45a8ff 60 SystemCoreClockUpdate();
bogdanm 0:9b334a45a8ff 61 //S_UART_Init(obj->baudrate);
bogdanm 0:9b334a45a8ff 62 S_UART_SetCTRL((S_UART_CTRL_RX_EN|S_UART_CTRL_TX_EN), DISABLE);
bogdanm 0:9b334a45a8ff 63 S_UART_SetBaud(obj->baudrate);
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 if(obj->pin_rx == NC)
bogdanm 0:9b334a45a8ff 66 {
bogdanm 0:9b334a45a8ff 67 S_UART_SetCTRL(S_UART_CTRL_TX_EN, ENABLE);
bogdanm 0:9b334a45a8ff 68 }
bogdanm 0:9b334a45a8ff 69 else if(obj->pin_tx == NC)
bogdanm 0:9b334a45a8ff 70 {
bogdanm 0:9b334a45a8ff 71 S_UART_SetCTRL(S_UART_CTRL_RX_EN, ENABLE);
bogdanm 0:9b334a45a8ff 72 }
bogdanm 0:9b334a45a8ff 73 else
bogdanm 0:9b334a45a8ff 74 {
bogdanm 0:9b334a45a8ff 75 S_UART_SetCTRL((S_UART_CTRL_TX_EN|S_UART_CTRL_RX_EN),ENABLE);
bogdanm 0:9b334a45a8ff 76 }
bogdanm 0:9b334a45a8ff 77 }
bogdanm 0:9b334a45a8ff 78 else // For UART0 and UART1.
bogdanm 0:9b334a45a8ff 79 {
bogdanm 0:9b334a45a8ff 80 UART = (UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 81 UART_InitStructure.UART_BaudRate = obj->baudrate;
bogdanm 0:9b334a45a8ff 82 UART_InitStructure.UART_WordLength = obj->databits;
bogdanm 0:9b334a45a8ff 83 UART_InitStructure.UART_StopBits = obj->stopbits;
bogdanm 0:9b334a45a8ff 84 UART_InitStructure.UART_Parity = obj->parity;
bogdanm 0:9b334a45a8ff 85 UART_InitStructure.UART_HardwareFlowControl = UART_HardwareFlowControl_None;
bogdanm 0:9b334a45a8ff 86
bogdanm 0:9b334a45a8ff 87
bogdanm 0:9b334a45a8ff 88 if (obj->pin_rx == NC) {
bogdanm 0:9b334a45a8ff 89 UART_InitStructure.UART_Mode = UART_Mode_Tx;
bogdanm 0:9b334a45a8ff 90 } else if (obj->pin_tx == NC) {
bogdanm 0:9b334a45a8ff 91 UART_InitStructure.UART_Mode = UART_Mode_Rx;
bogdanm 0:9b334a45a8ff 92 } else {
bogdanm 0:9b334a45a8ff 93 UART_InitStructure.UART_Mode = (UART_Mode_Rx | UART_Mode_Tx);
bogdanm 0:9b334a45a8ff 94 }
bogdanm 0:9b334a45a8ff 95
bogdanm 0:9b334a45a8ff 96 UART_Init(UART,&UART_InitStructure);
bogdanm 0:9b334a45a8ff 97 }
bogdanm 0:9b334a45a8ff 98 }
bogdanm 0:9b334a45a8ff 99
bogdanm 0:9b334a45a8ff 100 void serial_init(serial_t *obj, PinName tx, PinName rx)
bogdanm 0:9b334a45a8ff 101 {
bogdanm 0:9b334a45a8ff 102 // Determine the UART to use (UART_1, UART_2, ...)
bogdanm 0:9b334a45a8ff 103 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
bogdanm 0:9b334a45a8ff 104 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
bogdanm 0:9b334a45a8ff 105
bogdanm 0:9b334a45a8ff 106 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
bogdanm 0:9b334a45a8ff 107 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
bogdanm 0:9b334a45a8ff 108
bogdanm 0:9b334a45a8ff 109 MBED_ASSERT(obj->uart != (UARTName)NC);
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111 // Enable USART clock
bogdanm 0:9b334a45a8ff 112 if (obj->uart == UART_0) {
bogdanm 0:9b334a45a8ff 113 obj->index = 0;
bogdanm 0:9b334a45a8ff 114 }
bogdanm 0:9b334a45a8ff 115
bogdanm 0:9b334a45a8ff 116 if (obj->uart == UART_1) {
bogdanm 0:9b334a45a8ff 117 obj->index = 1;
bogdanm 0:9b334a45a8ff 118 }
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 if (obj->uart == UART_2) {
bogdanm 0:9b334a45a8ff 121 obj->index = 2;
bogdanm 0:9b334a45a8ff 122 }
bogdanm 0:9b334a45a8ff 123
bogdanm 0:9b334a45a8ff 124 // Configure the UART pins
bogdanm 0:9b334a45a8ff 125 pinmap_pinout(tx, PinMap_UART_TX);
bogdanm 0:9b334a45a8ff 126 pinmap_pinout(rx, PinMap_UART_RX);
bogdanm 0:9b334a45a8ff 127 if (tx != NC) {
bogdanm 0:9b334a45a8ff 128 pin_mode(tx, PullUp);
bogdanm 0:9b334a45a8ff 129 }
bogdanm 0:9b334a45a8ff 130 if (rx != NC) {
bogdanm 0:9b334a45a8ff 131 pin_mode(rx, PullUp);
bogdanm 0:9b334a45a8ff 132 }
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 // Configure UART
bogdanm 0:9b334a45a8ff 135 obj->baudrate = 9600;
bogdanm 0:9b334a45a8ff 136 obj->databits = UART_WordLength_8b;
bogdanm 0:9b334a45a8ff 137 obj->stopbits = UART_StopBits_1;
bogdanm 0:9b334a45a8ff 138 obj->parity = UART_Parity_No;
bogdanm 0:9b334a45a8ff 139
bogdanm 0:9b334a45a8ff 140 obj->pin_tx = tx;
bogdanm 0:9b334a45a8ff 141 obj->pin_rx = rx;
bogdanm 0:9b334a45a8ff 142
bogdanm 0:9b334a45a8ff 143
bogdanm 0:9b334a45a8ff 144 init_uart(obj);
bogdanm 0:9b334a45a8ff 145
bogdanm 0:9b334a45a8ff 146 // For stdio management
bogdanm 0:9b334a45a8ff 147 if (obj->uart == STDIO_UART) {
bogdanm 0:9b334a45a8ff 148 stdio_uart_inited = 1;
bogdanm 0:9b334a45a8ff 149 memcpy(&stdio_uart, obj, sizeof(serial_t));
bogdanm 0:9b334a45a8ff 150 }
bogdanm 0:9b334a45a8ff 151 }
bogdanm 0:9b334a45a8ff 152
bogdanm 0:9b334a45a8ff 153 void serial_free(serial_t *obj)
bogdanm 0:9b334a45a8ff 154 {
bogdanm 0:9b334a45a8ff 155 // Reset UART and disable clock
bogdanm 0:9b334a45a8ff 156 if (obj->uart == UART_0) {
bogdanm 0:9b334a45a8ff 157 }
bogdanm 0:9b334a45a8ff 158
bogdanm 0:9b334a45a8ff 159 if (obj->uart == UART_1) {
bogdanm 0:9b334a45a8ff 160 }
bogdanm 0:9b334a45a8ff 161 if (obj->uart == UART_2) {
bogdanm 0:9b334a45a8ff 162 }
bogdanm 0:9b334a45a8ff 163
bogdanm 0:9b334a45a8ff 164 serial_irq_ids[obj->index] = 0;
bogdanm 0:9b334a45a8ff 165 }
bogdanm 0:9b334a45a8ff 166
bogdanm 0:9b334a45a8ff 167 void serial_baud(serial_t *obj, int baudrate)
bogdanm 0:9b334a45a8ff 168 {
bogdanm 0:9b334a45a8ff 169 obj->baudrate = baudrate;
bogdanm 0:9b334a45a8ff 170 init_uart(obj);
bogdanm 0:9b334a45a8ff 171 }
bogdanm 0:9b334a45a8ff 172
bogdanm 0:9b334a45a8ff 173 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
bogdanm 0:9b334a45a8ff 174 {
bogdanm 0:9b334a45a8ff 175 if (data_bits == 7) {
bogdanm 0:9b334a45a8ff 176 obj->databits = UART_WordLength_7b;
bogdanm 0:9b334a45a8ff 177 } else {
bogdanm 0:9b334a45a8ff 178 obj->databits = UART_WordLength_8b;
bogdanm 0:9b334a45a8ff 179 }
bogdanm 0:9b334a45a8ff 180
bogdanm 0:9b334a45a8ff 181 switch (parity) {
bogdanm 0:9b334a45a8ff 182 case ParityOdd:
bogdanm 0:9b334a45a8ff 183 case ParityForced0:
bogdanm 0:9b334a45a8ff 184 obj->parity = UART_Parity_Odd;
bogdanm 0:9b334a45a8ff 185 break;
bogdanm 0:9b334a45a8ff 186 case ParityEven:
bogdanm 0:9b334a45a8ff 187 case ParityForced1:
bogdanm 0:9b334a45a8ff 188 obj->parity = UART_Parity_Even;
bogdanm 0:9b334a45a8ff 189 break;
bogdanm 0:9b334a45a8ff 190 default: // ParityNone
bogdanm 0:9b334a45a8ff 191 obj->parity = UART_Parity_No;
bogdanm 0:9b334a45a8ff 192 break;
bogdanm 0:9b334a45a8ff 193 }
bogdanm 0:9b334a45a8ff 194
bogdanm 0:9b334a45a8ff 195 if (stop_bits == 2) {
bogdanm 0:9b334a45a8ff 196 obj->stopbits = UART_StopBits_2;
bogdanm 0:9b334a45a8ff 197 } else {
bogdanm 0:9b334a45a8ff 198 obj->stopbits = UART_StopBits_1;
bogdanm 0:9b334a45a8ff 199 }
bogdanm 0:9b334a45a8ff 200
bogdanm 0:9b334a45a8ff 201 init_uart(obj);
bogdanm 0:9b334a45a8ff 202 }
bogdanm 0:9b334a45a8ff 203
bogdanm 0:9b334a45a8ff 204 /******************************************************************************
bogdanm 0:9b334a45a8ff 205 * INTERRUPTS HANDLING
bogdanm 0:9b334a45a8ff 206 ******************************************************************************/
bogdanm 0:9b334a45a8ff 207
bogdanm 0:9b334a45a8ff 208 static void uart_irq(UARTName name, int id)
bogdanm 0:9b334a45a8ff 209 {
bogdanm 0:9b334a45a8ff 210 UART = (UART_TypeDef *)name;
bogdanm 0:9b334a45a8ff 211 if (serial_irq_ids[id] != 0) {
bogdanm 0:9b334a45a8ff 212 if( UART_GetITStatus(UART,UART_IT_FLAG_TXI) != RESET ){
bogdanm 0:9b334a45a8ff 213 irq_handler(serial_irq_ids[id], TxIrq);
bogdanm 0:9b334a45a8ff 214 UART_ClearITPendingBit(UART,UART_IT_FLAG_TXI);
bogdanm 0:9b334a45a8ff 215 }
bogdanm 0:9b334a45a8ff 216 if( UART_GetITStatus(UART,UART_IT_FLAG_RXI) != RESET ){
bogdanm 0:9b334a45a8ff 217 irq_handler(serial_irq_ids[id], RxIrq);
bogdanm 0:9b334a45a8ff 218 }
bogdanm 0:9b334a45a8ff 219 }
bogdanm 0:9b334a45a8ff 220 }
bogdanm 0:9b334a45a8ff 221
bogdanm 0:9b334a45a8ff 222 static void uart2_irq()
bogdanm 0:9b334a45a8ff 223 {
bogdanm 0:9b334a45a8ff 224 if(serial_irq_ids[2] != 0){
bogdanm 0:9b334a45a8ff 225 if( S_UART_GetITStatus(S_UART_INTSTATUS_TXI) != RESET ){
bogdanm 0:9b334a45a8ff 226 S_UART_ClearITPendingBit(S_UART_INTSTATUS_TXI);
bogdanm 0:9b334a45a8ff 227 irq_handler(serial_irq_ids[2], TxIrq);
bogdanm 0:9b334a45a8ff 228 }
bogdanm 0:9b334a45a8ff 229 if( S_UART_GetITStatus(S_UART_INTSTATUS_RXI) != RESET ) {
bogdanm 0:9b334a45a8ff 230 S_UART_ClearITPendingBit(S_UART_INTSTATUS_RXI);
bogdanm 0:9b334a45a8ff 231 irq_handler(serial_irq_ids[2], RxIrq);
bogdanm 0:9b334a45a8ff 232 }
bogdanm 0:9b334a45a8ff 233 }
bogdanm 0:9b334a45a8ff 234 }
bogdanm 0:9b334a45a8ff 235
bogdanm 0:9b334a45a8ff 236 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 237 extern "C"{
bogdanm 0:9b334a45a8ff 238 #endif
bogdanm 0:9b334a45a8ff 239 void UART0_Handler()
bogdanm 0:9b334a45a8ff 240 {
bogdanm 0:9b334a45a8ff 241 uart_irq(UART_0, 0);
bogdanm 0:9b334a45a8ff 242 }
bogdanm 0:9b334a45a8ff 243
bogdanm 0:9b334a45a8ff 244 void UART1_Handler()
bogdanm 0:9b334a45a8ff 245 {
bogdanm 0:9b334a45a8ff 246 uart_irq(UART_1, 1);
bogdanm 0:9b334a45a8ff 247 }
bogdanm 0:9b334a45a8ff 248
bogdanm 0:9b334a45a8ff 249 void UART2_Handler()
bogdanm 0:9b334a45a8ff 250 {
bogdanm 0:9b334a45a8ff 251 uart2_irq();
bogdanm 0:9b334a45a8ff 252 }
bogdanm 0:9b334a45a8ff 253 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 254 }
bogdanm 0:9b334a45a8ff 255 #endif
bogdanm 0:9b334a45a8ff 256
bogdanm 0:9b334a45a8ff 257
bogdanm 0:9b334a45a8ff 258 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
bogdanm 0:9b334a45a8ff 259 {
bogdanm 0:9b334a45a8ff 260 irq_handler = handler;
bogdanm 0:9b334a45a8ff 261 serial_irq_ids[obj->index] = id;
bogdanm 0:9b334a45a8ff 262 }
bogdanm 0:9b334a45a8ff 263
bogdanm 0:9b334a45a8ff 264 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
bogdanm 0:9b334a45a8ff 265 {
bogdanm 0:9b334a45a8ff 266 IRQn_Type irq_n = (IRQn_Type)0;
bogdanm 0:9b334a45a8ff 267
bogdanm 0:9b334a45a8ff 268
bogdanm 0:9b334a45a8ff 269 if (obj->uart == UART_2)
bogdanm 0:9b334a45a8ff 270 {
bogdanm 0:9b334a45a8ff 271 irq_n = UART2_IRQn;
bogdanm 0:9b334a45a8ff 272
bogdanm 0:9b334a45a8ff 273 if (enable){
bogdanm 0:9b334a45a8ff 274 if (irq == RxIrq){
bogdanm 0:9b334a45a8ff 275 S_UART_ITConfig(S_UART_CTRL_RXI,ENABLE);
bogdanm 0:9b334a45a8ff 276 } else {
bogdanm 0:9b334a45a8ff 277 S_UART_ITConfig(S_UART_CTRL_TXI,ENABLE);
bogdanm 0:9b334a45a8ff 278 }
bogdanm 0:9b334a45a8ff 279 NVIC_ClearPendingIRQ(irq_n);
bogdanm 0:9b334a45a8ff 280 NVIC_EnableIRQ(irq_n);
bogdanm 0:9b334a45a8ff 281 } else { // disable
bogdanm 0:9b334a45a8ff 282 S_UART_ITConfig((S_UART_CTRL_RXI|S_UART_CTRL_TXI),DISABLE);
bogdanm 0:9b334a45a8ff 283 NVIC_DisableIRQ(irq_n);
bogdanm 0:9b334a45a8ff 284 }
bogdanm 0:9b334a45a8ff 285 }
bogdanm 0:9b334a45a8ff 286 else
bogdanm 0:9b334a45a8ff 287 {
bogdanm 0:9b334a45a8ff 288 UART = (UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 289
bogdanm 0:9b334a45a8ff 290 if (obj->uart == UART_0) {
bogdanm 0:9b334a45a8ff 291 irq_n = UART0_IRQn;
bogdanm 0:9b334a45a8ff 292 }
bogdanm 0:9b334a45a8ff 293
bogdanm 0:9b334a45a8ff 294 if (obj->uart == UART_1) {
bogdanm 0:9b334a45a8ff 295 irq_n = UART1_IRQn;
bogdanm 0:9b334a45a8ff 296 }
bogdanm 0:9b334a45a8ff 297
bogdanm 0:9b334a45a8ff 298 if (enable) {
bogdanm 0:9b334a45a8ff 299 if (irq == RxIrq) {
bogdanm 0:9b334a45a8ff 300 UART_ITConfig(UART,UART_IT_FLAG_RXI,ENABLE);
bogdanm 0:9b334a45a8ff 301 } else { // TxIrq
bogdanm 0:9b334a45a8ff 302 UART_ITConfig(UART,UART_IT_FLAG_TXI,ENABLE);
bogdanm 0:9b334a45a8ff 303 }
bogdanm 0:9b334a45a8ff 304
bogdanm 0:9b334a45a8ff 305 NVIC_ClearPendingIRQ(irq_n);
bogdanm 0:9b334a45a8ff 306 NVIC_EnableIRQ(irq_n);
bogdanm 0:9b334a45a8ff 307 } else { // disable
bogdanm 0:9b334a45a8ff 308 UART_ITConfig(UART,(UART_IT_FLAG_RXI|UART_IT_FLAG_TXI),DISABLE);
bogdanm 0:9b334a45a8ff 309 NVIC_DisableIRQ(irq_n);
bogdanm 0:9b334a45a8ff 310 }
bogdanm 0:9b334a45a8ff 311 }
bogdanm 0:9b334a45a8ff 312 }
bogdanm 0:9b334a45a8ff 313
bogdanm 0:9b334a45a8ff 314 /******************************************************************************
bogdanm 0:9b334a45a8ff 315 * READ/WRITE
bogdanm 0:9b334a45a8ff 316 ******************************************************************************/
bogdanm 0:9b334a45a8ff 317
bogdanm 0:9b334a45a8ff 318 int serial_getc(serial_t *obj)
bogdanm 0:9b334a45a8ff 319 {
bogdanm 0:9b334a45a8ff 320 if (obj->uart == UART_2)
bogdanm 0:9b334a45a8ff 321 {
bogdanm 0:9b334a45a8ff 322 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 while( (uart->STATE & S_UART_STATE_RX_BUF_FULL) == 0 );
bogdanm 0:9b334a45a8ff 325 return (uint16_t)(uart->DATA);
bogdanm 0:9b334a45a8ff 326 }
bogdanm 0:9b334a45a8ff 327 else
bogdanm 0:9b334a45a8ff 328 {
bogdanm 0:9b334a45a8ff 329 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 330 while(uart->FR & UART_FR_RXFE);
bogdanm 0:9b334a45a8ff 331
bogdanm 0:9b334a45a8ff 332 return (uart->DR & 0xFF);
bogdanm 0:9b334a45a8ff 333 }
bogdanm 0:9b334a45a8ff 334 }
bogdanm 0:9b334a45a8ff 335
bogdanm 0:9b334a45a8ff 336 void serial_putc(serial_t *obj, int c)
bogdanm 0:9b334a45a8ff 337 {
bogdanm 0:9b334a45a8ff 338 if (obj->uart == UART_2)
bogdanm 0:9b334a45a8ff 339 {
bogdanm 0:9b334a45a8ff 340 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 341
bogdanm 0:9b334a45a8ff 342 while(uart->STATE & S_UART_STATE_TX_BUF_FULL);
bogdanm 0:9b334a45a8ff 343 uart->DATA = (uint32_t)(c & (uint16_t)0xFF);
bogdanm 0:9b334a45a8ff 344 }
bogdanm 0:9b334a45a8ff 345 else
bogdanm 0:9b334a45a8ff 346 {
bogdanm 0:9b334a45a8ff 347 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 348
bogdanm 0:9b334a45a8ff 349 uart->DR = (uint32_t)(c & (uint16_t)0xFF);
bogdanm 0:9b334a45a8ff 350 while(uart->FR & UART_FR_BUSY);
bogdanm 0:9b334a45a8ff 351 }
bogdanm 0:9b334a45a8ff 352 }
bogdanm 0:9b334a45a8ff 353
bogdanm 0:9b334a45a8ff 354 int serial_readable(serial_t *obj)
bogdanm 0:9b334a45a8ff 355 {
bogdanm 0:9b334a45a8ff 356 int status;
bogdanm 0:9b334a45a8ff 357
bogdanm 0:9b334a45a8ff 358 if (obj->uart == UART_2)
bogdanm 0:9b334a45a8ff 359 {
bogdanm 0:9b334a45a8ff 360 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 361 status = ((uart->STATE & S_UART_STATE_RX_BUF_FULL) ? 1 : 0);
bogdanm 0:9b334a45a8ff 362 }
bogdanm 0:9b334a45a8ff 363 else
bogdanm 0:9b334a45a8ff 364 {
bogdanm 0:9b334a45a8ff 365 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 366 // Check if data is received
bogdanm 0:9b334a45a8ff 367 status = ((uart->FR & UART_FR_RXFE) ? 0: 1);
bogdanm 0:9b334a45a8ff 368 }
bogdanm 0:9b334a45a8ff 369
bogdanm 0:9b334a45a8ff 370 return status;
bogdanm 0:9b334a45a8ff 371 }
bogdanm 0:9b334a45a8ff 372
bogdanm 0:9b334a45a8ff 373 int serial_writable(serial_t *obj)
bogdanm 0:9b334a45a8ff 374 {
bogdanm 0:9b334a45a8ff 375 int status;
bogdanm 0:9b334a45a8ff 376
bogdanm 0:9b334a45a8ff 377 if (obj->uart == UART_2)
bogdanm 0:9b334a45a8ff 378 {
bogdanm 0:9b334a45a8ff 379 S_UART_TypeDef *uart = (S_UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 380 status = ((uart->STATE & S_UART_STATE_TX_BUF_FULL) ? 0 : 1);
bogdanm 0:9b334a45a8ff 381 }
bogdanm 0:9b334a45a8ff 382 else
bogdanm 0:9b334a45a8ff 383 {
bogdanm 0:9b334a45a8ff 384 UART_TypeDef *uart = (UART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 385 // Check if data is transmitted
bogdanm 0:9b334a45a8ff 386 status = ((uart->FR & UART_FR_BUSY) ? 0: 1);
bogdanm 0:9b334a45a8ff 387 }
bogdanm 0:9b334a45a8ff 388 return status;
bogdanm 0:9b334a45a8ff 389 }
bogdanm 0:9b334a45a8ff 390
bogdanm 0:9b334a45a8ff 391 void serial_clear(serial_t *obj)
bogdanm 0:9b334a45a8ff 392 {
bogdanm 0:9b334a45a8ff 393 // UartHandle.Instance = (USART_TypeDef *)(obj->uart);
bogdanm 0:9b334a45a8ff 394 // __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
bogdanm 0:9b334a45a8ff 395 // __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
bogdanm 0:9b334a45a8ff 396 }
bogdanm 0:9b334a45a8ff 397
bogdanm 0:9b334a45a8ff 398 void serial_pinout_tx(PinName tx)
bogdanm 0:9b334a45a8ff 399 {
bogdanm 0:9b334a45a8ff 400 //pinmap_pinout(tx, PinMap_UART_TX);
bogdanm 0:9b334a45a8ff 401 }
bogdanm 0:9b334a45a8ff 402
bogdanm 0:9b334a45a8ff 403 void serial_break_set(serial_t *obj)
bogdanm 0:9b334a45a8ff 404 {
bogdanm 0:9b334a45a8ff 405 // [TODO]
bogdanm 0:9b334a45a8ff 406 }
bogdanm 0:9b334a45a8ff 407
bogdanm 0:9b334a45a8ff 408 void serial_break_clear(serial_t *obj)
bogdanm 0:9b334a45a8ff 409 {
bogdanm 0:9b334a45a8ff 410 // [TODO]
bogdanm 0:9b334a45a8ff 411 }
bogdanm 0:9b334a45a8ff 412
bogdanm 0:9b334a45a8ff 413 #endif