mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_TOSHIBA/TARGET_TMPM066/serial_api.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
172:7d866c31b3c5 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 172:7d866c31b3c5 1 /* mbed Microcontroller Library
AnnaBridge 172:7d866c31b3c5 2 * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2017 All rights reserved
AnnaBridge 172:7d866c31b3c5 3 *
AnnaBridge 172:7d866c31b3c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 172:7d866c31b3c5 5 * you may not use this file except in compliance with the License.
AnnaBridge 172:7d866c31b3c5 6 * You may obtain a copy of the License at
AnnaBridge 172:7d866c31b3c5 7 *
AnnaBridge 172:7d866c31b3c5 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 172:7d866c31b3c5 9 *
AnnaBridge 172:7d866c31b3c5 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 172:7d866c31b3c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 172:7d866c31b3c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 172:7d866c31b3c5 13 * See the License for the specific language governing permissions and
AnnaBridge 172:7d866c31b3c5 14 * limitations under the License.
AnnaBridge 172:7d866c31b3c5 15 */
AnnaBridge 172:7d866c31b3c5 16 #include <string.h>
AnnaBridge 172:7d866c31b3c5 17 #include "serial_api.h"
AnnaBridge 172:7d866c31b3c5 18 #include "PeripheralNames.h"
AnnaBridge 172:7d866c31b3c5 19 #include "pinmap.h"
AnnaBridge 172:7d866c31b3c5 20
AnnaBridge 172:7d866c31b3c5 21 #define UART_NUM 2
AnnaBridge 172:7d866c31b3c5 22
AnnaBridge 172:7d866c31b3c5 23 static const PinMap PinMap_UART_TX[] = {
AnnaBridge 172:7d866c31b3c5 24 {PC2, SERIAL_0, PIN_DATA(1, 1)},
AnnaBridge 172:7d866c31b3c5 25 {PE2, SERIAL_1, PIN_DATA(1, 1)},
AnnaBridge 172:7d866c31b3c5 26 {NC, NC, 0}
AnnaBridge 172:7d866c31b3c5 27 };
AnnaBridge 172:7d866c31b3c5 28
AnnaBridge 172:7d866c31b3c5 29 static const PinMap PinMap_UART_RX[] = {
AnnaBridge 172:7d866c31b3c5 30 {PC3, SERIAL_0, PIN_DATA(1, 0)},
AnnaBridge 172:7d866c31b3c5 31 {PE1, SERIAL_1, PIN_DATA(1, 0)},
AnnaBridge 172:7d866c31b3c5 32 {NC, NC, 0}
AnnaBridge 172:7d866c31b3c5 33 };
AnnaBridge 172:7d866c31b3c5 34
AnnaBridge 172:7d866c31b3c5 35 static int serial_irq_ids[UART_NUM] = {0};
AnnaBridge 172:7d866c31b3c5 36 static uart_irq_handler irq_handler;
AnnaBridge 172:7d866c31b3c5 37
AnnaBridge 172:7d866c31b3c5 38 int stdio_uart_inited = 0;
AnnaBridge 172:7d866c31b3c5 39 serial_t stdio_uart;
AnnaBridge 172:7d866c31b3c5 40
AnnaBridge 172:7d866c31b3c5 41 void serial_init(serial_t *obj, PinName tx, PinName rx)
AnnaBridge 172:7d866c31b3c5 42 {
AnnaBridge 172:7d866c31b3c5 43 int is_stdio_uart = 0;
AnnaBridge 172:7d866c31b3c5 44
AnnaBridge 172:7d866c31b3c5 45 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
AnnaBridge 172:7d866c31b3c5 46 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
AnnaBridge 172:7d866c31b3c5 47 UARTName uart_name = (UARTName)pinmap_merge(uart_tx, uart_rx);
AnnaBridge 172:7d866c31b3c5 48 MBED_ASSERT((int)uart_name != NC);
AnnaBridge 172:7d866c31b3c5 49
AnnaBridge 172:7d866c31b3c5 50 obj->index = uart_name;
AnnaBridge 172:7d866c31b3c5 51 // Initialize UART instance
AnnaBridge 172:7d866c31b3c5 52 switch (uart_name) {
AnnaBridge 172:7d866c31b3c5 53 case SERIAL_0:
AnnaBridge 172:7d866c31b3c5 54 CG_SetFcPeriphA(CG_FC_PERIPH_SIO0, ENABLE);
AnnaBridge 172:7d866c31b3c5 55 obj->UARTx = UART0;
AnnaBridge 172:7d866c31b3c5 56 break;
AnnaBridge 172:7d866c31b3c5 57 case SERIAL_1:
AnnaBridge 172:7d866c31b3c5 58 CG_SetFcPeriphB(CG_FC_PERIPH_SIO1, ENABLE);
AnnaBridge 172:7d866c31b3c5 59 obj->UARTx = UART1;
AnnaBridge 172:7d866c31b3c5 60 break;
AnnaBridge 172:7d866c31b3c5 61 default:
AnnaBridge 172:7d866c31b3c5 62 break;
AnnaBridge 172:7d866c31b3c5 63 }
AnnaBridge 172:7d866c31b3c5 64
AnnaBridge 172:7d866c31b3c5 65 obj->uart_config.BaudRate = 9600;
AnnaBridge 172:7d866c31b3c5 66 obj->uart_config.DataBits = UART_DATA_BITS_8;
AnnaBridge 172:7d866c31b3c5 67 obj->uart_config.StopBits = UART_STOP_BITS_1;
AnnaBridge 172:7d866c31b3c5 68 obj->uart_config.Parity = UART_NO_PARITY;
AnnaBridge 172:7d866c31b3c5 69 obj->uart_config.FlowCtrl = UART_NONE_FLOW_CTRL;
AnnaBridge 172:7d866c31b3c5 70
AnnaBridge 172:7d866c31b3c5 71 if (tx != NC && rx != NC) {
AnnaBridge 172:7d866c31b3c5 72 obj->uart_config.Mode = UART_ENABLE_RX | UART_ENABLE_TX;
AnnaBridge 172:7d866c31b3c5 73 } else {
AnnaBridge 172:7d866c31b3c5 74 if (tx != NC) {
AnnaBridge 172:7d866c31b3c5 75 obj->uart_config.Mode = UART_ENABLE_TX;
AnnaBridge 172:7d866c31b3c5 76 } else {
AnnaBridge 172:7d866c31b3c5 77 if (rx != NC) {
AnnaBridge 172:7d866c31b3c5 78 obj->uart_config.Mode = UART_ENABLE_RX;
AnnaBridge 172:7d866c31b3c5 79 }
AnnaBridge 172:7d866c31b3c5 80 }
AnnaBridge 172:7d866c31b3c5 81 }
AnnaBridge 172:7d866c31b3c5 82
AnnaBridge 172:7d866c31b3c5 83 // Pinout the chosen uart
AnnaBridge 172:7d866c31b3c5 84 pinmap_pinout(tx, PinMap_UART_TX);
AnnaBridge 172:7d866c31b3c5 85 pinmap_pinout(rx, PinMap_UART_RX);
AnnaBridge 172:7d866c31b3c5 86 // Initialize UART configure
AnnaBridge 172:7d866c31b3c5 87 UART_Enable(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 88 UART_SetIdleMode(obj->UARTx, ENABLE);
AnnaBridge 172:7d866c31b3c5 89 UART_Init(obj->UARTx, &obj->uart_config);
AnnaBridge 172:7d866c31b3c5 90 is_stdio_uart = (uart_name == STDIO_UART) ? (1) : (0);
AnnaBridge 172:7d866c31b3c5 91 if (is_stdio_uart) {
AnnaBridge 172:7d866c31b3c5 92 stdio_uart_inited = 1;
AnnaBridge 172:7d866c31b3c5 93 memcpy(&stdio_uart, obj, sizeof(serial_t));
AnnaBridge 172:7d866c31b3c5 94 }
AnnaBridge 172:7d866c31b3c5 95 }
AnnaBridge 172:7d866c31b3c5 96
AnnaBridge 172:7d866c31b3c5 97 void serial_free(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 98 {
AnnaBridge 172:7d866c31b3c5 99 // Disable UART
AnnaBridge 172:7d866c31b3c5 100 UART_Disable(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 101 UART_SWReset(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 102 // Set information of object to invalid
AnnaBridge 172:7d866c31b3c5 103 obj->uart_config.BaudRate = 0;
AnnaBridge 172:7d866c31b3c5 104 obj->uart_config.DataBits = 0;
AnnaBridge 172:7d866c31b3c5 105 obj->uart_config.StopBits = 0;
AnnaBridge 172:7d866c31b3c5 106 obj->uart_config.Parity = 0;
AnnaBridge 172:7d866c31b3c5 107 obj->uart_config.Mode = 0;
AnnaBridge 172:7d866c31b3c5 108 obj->uart_config.FlowCtrl = 0;
AnnaBridge 172:7d866c31b3c5 109 }
AnnaBridge 172:7d866c31b3c5 110
AnnaBridge 172:7d866c31b3c5 111 void serial_baud(serial_t *obj, int baudrate)
AnnaBridge 172:7d866c31b3c5 112 {
AnnaBridge 172:7d866c31b3c5 113 obj->uart_config.BaudRate = baudrate;
AnnaBridge 172:7d866c31b3c5 114 UART_Init(obj->UARTx, &obj->uart_config);
AnnaBridge 172:7d866c31b3c5 115 }
AnnaBridge 172:7d866c31b3c5 116
AnnaBridge 172:7d866c31b3c5 117 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
AnnaBridge 172:7d866c31b3c5 118 {
AnnaBridge 172:7d866c31b3c5 119 // 0: 1 stop bits, 1: 2 stop bits
AnnaBridge 172:7d866c31b3c5 120 MBED_ASSERT((stop_bits == 1) || (stop_bits == 2));
AnnaBridge 172:7d866c31b3c5 121 MBED_ASSERT((parity == ParityNone) || (parity == ParityOdd) || (parity == ParityEven) ||
AnnaBridge 172:7d866c31b3c5 122 (parity == ParityForced1) || (parity == ParityForced0));
AnnaBridge 172:7d866c31b3c5 123 // 0: 7 data bits ... 2: 9 data bits
AnnaBridge 172:7d866c31b3c5 124 MBED_ASSERT((data_bits > 6) && (data_bits < 10));
AnnaBridge 172:7d866c31b3c5 125
AnnaBridge 172:7d866c31b3c5 126 obj->uart_config.DataBits = data_bits;
AnnaBridge 172:7d866c31b3c5 127 obj->uart_config.StopBits = stop_bits;
AnnaBridge 172:7d866c31b3c5 128 obj->uart_config.Parity = parity;
AnnaBridge 172:7d866c31b3c5 129 UART_Init(obj->UARTx, &obj->uart_config);
AnnaBridge 172:7d866c31b3c5 130 }
AnnaBridge 172:7d866c31b3c5 131
AnnaBridge 172:7d866c31b3c5 132 // INTERRUPTS HANDLING
AnnaBridge 172:7d866c31b3c5 133 void INTTX0_IRQHandler(void)
AnnaBridge 172:7d866c31b3c5 134 {
AnnaBridge 172:7d866c31b3c5 135 irq_handler(serial_irq_ids[SERIAL_0], TxIrq);
AnnaBridge 172:7d866c31b3c5 136 }
AnnaBridge 172:7d866c31b3c5 137
AnnaBridge 172:7d866c31b3c5 138 void INTRX0_IRQHandler(void)
AnnaBridge 172:7d866c31b3c5 139 {
AnnaBridge 172:7d866c31b3c5 140 irq_handler(serial_irq_ids[SERIAL_0], RxIrq);
AnnaBridge 172:7d866c31b3c5 141 }
AnnaBridge 172:7d866c31b3c5 142
AnnaBridge 172:7d866c31b3c5 143 void INTTX1_IRQHandler(void)
AnnaBridge 172:7d866c31b3c5 144 {
AnnaBridge 172:7d866c31b3c5 145 irq_handler(serial_irq_ids[SERIAL_1], TxIrq);
AnnaBridge 172:7d866c31b3c5 146 }
AnnaBridge 172:7d866c31b3c5 147
AnnaBridge 172:7d866c31b3c5 148 void INTRX1_IRQHandler(void)
AnnaBridge 172:7d866c31b3c5 149 {
AnnaBridge 172:7d866c31b3c5 150 irq_handler(serial_irq_ids[SERIAL_1], RxIrq);
AnnaBridge 172:7d866c31b3c5 151 }
AnnaBridge 172:7d866c31b3c5 152
AnnaBridge 172:7d866c31b3c5 153 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
AnnaBridge 172:7d866c31b3c5 154 {
AnnaBridge 172:7d866c31b3c5 155 irq_handler = handler;
AnnaBridge 172:7d866c31b3c5 156 serial_irq_ids[obj->index] = id;
AnnaBridge 172:7d866c31b3c5 157 }
AnnaBridge 172:7d866c31b3c5 158
AnnaBridge 172:7d866c31b3c5 159 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
AnnaBridge 172:7d866c31b3c5 160 {
AnnaBridge 172:7d866c31b3c5 161 IRQn_Type irq_n = (IRQn_Type)0;
AnnaBridge 172:7d866c31b3c5 162
AnnaBridge 172:7d866c31b3c5 163 switch (obj->index) {
AnnaBridge 172:7d866c31b3c5 164 case SERIAL_0:
AnnaBridge 172:7d866c31b3c5 165 if (irq == RxIrq) {
AnnaBridge 172:7d866c31b3c5 166 irq_n = INTRX0_IRQn;
AnnaBridge 172:7d866c31b3c5 167 } else {
AnnaBridge 172:7d866c31b3c5 168 irq_n = INTTX0_IRQn;
AnnaBridge 172:7d866c31b3c5 169 }
AnnaBridge 172:7d866c31b3c5 170 break;
AnnaBridge 172:7d866c31b3c5 171 case SERIAL_1:
AnnaBridge 172:7d866c31b3c5 172 if (irq == RxIrq) {
AnnaBridge 172:7d866c31b3c5 173 irq_n = INTRX1_IRQn;
AnnaBridge 172:7d866c31b3c5 174 } else {
AnnaBridge 172:7d866c31b3c5 175 irq_n = INTTX1_IRQn;
AnnaBridge 172:7d866c31b3c5 176 }
AnnaBridge 172:7d866c31b3c5 177 break;
AnnaBridge 172:7d866c31b3c5 178 default:
AnnaBridge 172:7d866c31b3c5 179 break;
AnnaBridge 172:7d866c31b3c5 180 }
AnnaBridge 172:7d866c31b3c5 181
AnnaBridge 172:7d866c31b3c5 182 if (enable) {
AnnaBridge 172:7d866c31b3c5 183 NVIC_EnableIRQ(irq_n);
AnnaBridge 172:7d866c31b3c5 184 } else {
AnnaBridge 172:7d866c31b3c5 185 NVIC_DisableIRQ(irq_n);
AnnaBridge 172:7d866c31b3c5 186 }
AnnaBridge 172:7d866c31b3c5 187 }
AnnaBridge 172:7d866c31b3c5 188
AnnaBridge 172:7d866c31b3c5 189 int serial_getc(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 190 {
AnnaBridge 172:7d866c31b3c5 191 // Wait until Rx buffer is full
AnnaBridge 172:7d866c31b3c5 192 while (!serial_readable(obj)) {
AnnaBridge 172:7d866c31b3c5 193 // Do nothing
AnnaBridge 172:7d866c31b3c5 194 }
AnnaBridge 172:7d866c31b3c5 195
AnnaBridge 172:7d866c31b3c5 196 return UART_GetRxData(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 197 }
AnnaBridge 172:7d866c31b3c5 198
AnnaBridge 172:7d866c31b3c5 199 void serial_putc(serial_t *obj, int c)
AnnaBridge 172:7d866c31b3c5 200 {
AnnaBridge 172:7d866c31b3c5 201 // Wait until Tx buffer is empty
AnnaBridge 172:7d866c31b3c5 202 while (!serial_writable(obj)) {
AnnaBridge 172:7d866c31b3c5 203 // Do nothing
AnnaBridge 172:7d866c31b3c5 204 }
AnnaBridge 172:7d866c31b3c5 205
AnnaBridge 172:7d866c31b3c5 206 UART_SetTxData(obj->UARTx, (uint32_t)c);
AnnaBridge 172:7d866c31b3c5 207 }
AnnaBridge 172:7d866c31b3c5 208
AnnaBridge 172:7d866c31b3c5 209 int serial_readable(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 210 {
AnnaBridge 172:7d866c31b3c5 211 int ret = 0;
AnnaBridge 172:7d866c31b3c5 212
AnnaBridge 172:7d866c31b3c5 213 if (UART_GetBufState(obj->UARTx, UART_RX) == DONE) {
AnnaBridge 172:7d866c31b3c5 214 ret = 1;
AnnaBridge 172:7d866c31b3c5 215 }
AnnaBridge 172:7d866c31b3c5 216
AnnaBridge 172:7d866c31b3c5 217 return ret;
AnnaBridge 172:7d866c31b3c5 218 }
AnnaBridge 172:7d866c31b3c5 219
AnnaBridge 172:7d866c31b3c5 220 int serial_writable(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 221 {
AnnaBridge 172:7d866c31b3c5 222 int ret = 0;
AnnaBridge 172:7d866c31b3c5 223
AnnaBridge 172:7d866c31b3c5 224 if (UART_GetBufState(obj->UARTx, UART_TX) == DONE) {
AnnaBridge 172:7d866c31b3c5 225 ret = 1;
AnnaBridge 172:7d866c31b3c5 226 }
AnnaBridge 172:7d866c31b3c5 227
AnnaBridge 172:7d866c31b3c5 228 return ret;
AnnaBridge 172:7d866c31b3c5 229 }
AnnaBridge 172:7d866c31b3c5 230
AnnaBridge 172:7d866c31b3c5 231 void serial_clear(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 232 {
AnnaBridge 172:7d866c31b3c5 233 UART_TxFIFOClear(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 234 UART_RxFIFOClear(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 235 UART_TxBufferClear(obj->UARTx);
AnnaBridge 172:7d866c31b3c5 236 }
AnnaBridge 172:7d866c31b3c5 237
AnnaBridge 172:7d866c31b3c5 238 void serial_pinout_tx(PinName tx)
AnnaBridge 172:7d866c31b3c5 239 {
AnnaBridge 172:7d866c31b3c5 240 pinmap_pinout(tx, PinMap_UART_TX);
AnnaBridge 172:7d866c31b3c5 241 }
AnnaBridge 172:7d866c31b3c5 242
AnnaBridge 172:7d866c31b3c5 243 void serial_break_set(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 244 {
AnnaBridge 172:7d866c31b3c5 245 }
AnnaBridge 172:7d866c31b3c5 246
AnnaBridge 172:7d866c31b3c5 247 void serial_break_clear(serial_t *obj)
AnnaBridge 172:7d866c31b3c5 248 {
AnnaBridge 172:7d866c31b3c5 249 }