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_TMPM4G9/serial_api.c@188:bcfe06ba3d64, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:46:34 2018 +0000
Revision:
188:bcfe06ba3d64
mbed-dev library. Release version 164

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 188:bcfe06ba3d64 1 /* mbed Microcontroller Library
AnnaBridge 188:bcfe06ba3d64 2 * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2018 All rights reserved
AnnaBridge 188:bcfe06ba3d64 3 *
AnnaBridge 188:bcfe06ba3d64 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 188:bcfe06ba3d64 5 * you may not use this file except in compliance with the License.
AnnaBridge 188:bcfe06ba3d64 6 * You may obtain a copy of the License at
AnnaBridge 188:bcfe06ba3d64 7 *
AnnaBridge 188:bcfe06ba3d64 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 188:bcfe06ba3d64 9 *
AnnaBridge 188:bcfe06ba3d64 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 188:bcfe06ba3d64 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 188:bcfe06ba3d64 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 188:bcfe06ba3d64 13 * See the License for the specific language governing permissions and
AnnaBridge 188:bcfe06ba3d64 14 * limitations under the License.
AnnaBridge 188:bcfe06ba3d64 15 */
AnnaBridge 188:bcfe06ba3d64 16 #include <string.h>
AnnaBridge 188:bcfe06ba3d64 17 #include "mbed_error.h"
AnnaBridge 188:bcfe06ba3d64 18 #include "serial_api.h"
AnnaBridge 188:bcfe06ba3d64 19 #include "pinmap.h"
AnnaBridge 188:bcfe06ba3d64 20
AnnaBridge 188:bcfe06ba3d64 21 #define UART_NUM 8
AnnaBridge 188:bcfe06ba3d64 22 #define UART_ENABLE_RX ((uint32_t)0x00000001)
AnnaBridge 188:bcfe06ba3d64 23 #define UART_ENABLE_TX ((uint32_t)0x00000002)
AnnaBridge 188:bcfe06ba3d64 24 #define UARTxFIFOCLR_TFCLR_CLEAR ((uint32_t)0x00000002)
AnnaBridge 188:bcfe06ba3d64 25 #define UARTxFIFOCLR_RFCLR_CLEAR ((uint32_t)0x00000001)
AnnaBridge 188:bcfe06ba3d64 26 #define UARTxSWRST_SWRSTF_MASK ((uint32_t)0x00000080)
AnnaBridge 188:bcfe06ba3d64 27 #define UARTxSWRST_SWRSTF_RUN ((uint32_t)0x00000080)
AnnaBridge 188:bcfe06ba3d64 28 #define UARTxSWRST_SWRST_10 ((uint32_t)0x00000002)
AnnaBridge 188:bcfe06ba3d64 29 #define UARTxSWRST_SWRST_01 ((uint32_t)0x00000001)
AnnaBridge 188:bcfe06ba3d64 30 #define UART_RX_FIFO_FILL_LEVEL ((uint32_t)0x00000100)
AnnaBridge 188:bcfe06ba3d64 31 #define FUART_ENABLE_RX ((uint32_t)0x00000200)
AnnaBridge 188:bcfe06ba3d64 32 #define FUART_ENABLE_TX ((uint32_t)0x00000100)
AnnaBridge 188:bcfe06ba3d64 33 #define BAUDRATE_DEFAULT (9600)
AnnaBridge 188:bcfe06ba3d64 34 #define CLR_REGISTER (0x00)
AnnaBridge 188:bcfe06ba3d64 35
AnnaBridge 188:bcfe06ba3d64 36 static const PinMap PinMap_UART_TX[] = {
AnnaBridge 188:bcfe06ba3d64 37 {PE3, SERIAL_0, PIN_DATA(7, 1)},
AnnaBridge 188:bcfe06ba3d64 38 {PH1, SERIAL_1, PIN_DATA(3, 1)},
AnnaBridge 188:bcfe06ba3d64 39 {PG1, SERIAL_2, PIN_DATA(3, 1)},
AnnaBridge 188:bcfe06ba3d64 40 {PU7, SERIAL_3, PIN_DATA(7, 1)},
AnnaBridge 188:bcfe06ba3d64 41 {PU0, SERIAL_4, PIN_DATA(7, 1)},
AnnaBridge 188:bcfe06ba3d64 42 {PJ1, SERIAL_5, PIN_DATA(3, 1)},
AnnaBridge 188:bcfe06ba3d64 43 {NC, NC, 0}
AnnaBridge 188:bcfe06ba3d64 44 };
AnnaBridge 188:bcfe06ba3d64 45
AnnaBridge 188:bcfe06ba3d64 46 static const PinMap PinMap_UART_RX[] = {
AnnaBridge 188:bcfe06ba3d64 47 {PE2, SERIAL_0, PIN_DATA(7, 0)},
AnnaBridge 188:bcfe06ba3d64 48 {PH0, SERIAL_1, PIN_DATA(3, 0)},
AnnaBridge 188:bcfe06ba3d64 49 {PG0, SERIAL_2, PIN_DATA(3, 0)},
AnnaBridge 188:bcfe06ba3d64 50 {PU6, SERIAL_3, PIN_DATA(7, 0)},
AnnaBridge 188:bcfe06ba3d64 51 {PU1, SERIAL_4, PIN_DATA(7, 0)},
AnnaBridge 188:bcfe06ba3d64 52 {PJ0, SERIAL_5, PIN_DATA(3, 0)},
AnnaBridge 188:bcfe06ba3d64 53 {NC, NC, 0}
AnnaBridge 188:bcfe06ba3d64 54 };
AnnaBridge 188:bcfe06ba3d64 55
AnnaBridge 188:bcfe06ba3d64 56 static int serial_irq_ids[UART_NUM] = {0};
AnnaBridge 188:bcfe06ba3d64 57 static uart_irq_handler irq_handler;
AnnaBridge 188:bcfe06ba3d64 58
AnnaBridge 188:bcfe06ba3d64 59 int stdio_uart_inited = 0;
AnnaBridge 188:bcfe06ba3d64 60 serial_t stdio_uart;
AnnaBridge 188:bcfe06ba3d64 61
AnnaBridge 188:bcfe06ba3d64 62 static void uart_swreset(TSB_UART_TypeDef *UARTx);
AnnaBridge 188:bcfe06ba3d64 63 void serial_init(serial_t *obj, PinName tx, PinName rx)
AnnaBridge 188:bcfe06ba3d64 64 {
AnnaBridge 188:bcfe06ba3d64 65 int is_stdio_uart = 0;
AnnaBridge 188:bcfe06ba3d64 66 obj->mode = 0;
AnnaBridge 188:bcfe06ba3d64 67 cg_t paramCG;
AnnaBridge 188:bcfe06ba3d64 68 paramCG.p_instance = TSB_CG;
AnnaBridge 188:bcfe06ba3d64 69 uart_clock_t prescal = {0};
AnnaBridge 188:bcfe06ba3d64 70
AnnaBridge 188:bcfe06ba3d64 71 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
AnnaBridge 188:bcfe06ba3d64 72 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
AnnaBridge 188:bcfe06ba3d64 73 UARTName uart_name = (UARTName)pinmap_merge(uart_tx, uart_rx);
AnnaBridge 188:bcfe06ba3d64 74
AnnaBridge 188:bcfe06ba3d64 75 MBED_ASSERT((int)uart_name != NC);
AnnaBridge 188:bcfe06ba3d64 76
AnnaBridge 188:bcfe06ba3d64 77 obj->index = uart_name;
AnnaBridge 188:bcfe06ba3d64 78 // Initialize UART instance
AnnaBridge 188:bcfe06ba3d64 79 switch (uart_name) {
AnnaBridge 188:bcfe06ba3d64 80 case SERIAL_0:
AnnaBridge 188:bcfe06ba3d64 81 obj->UARTx = TSB_UART0;
AnnaBridge 188:bcfe06ba3d64 82 // Enable clock for UART0 and Port E
AnnaBridge 188:bcfe06ba3d64 83 TSB_CG_FSYSMENA_IPMENA23 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 84 TSB_CG_FSYSMENB_IPMENB06 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 85 break;
AnnaBridge 188:bcfe06ba3d64 86 case SERIAL_1:
AnnaBridge 188:bcfe06ba3d64 87 obj->UARTx = TSB_UART1;
AnnaBridge 188:bcfe06ba3d64 88 // Enable clock for UART1 and Port H
AnnaBridge 188:bcfe06ba3d64 89 TSB_CG_FSYSMENA_IPMENA24 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 90 TSB_CG_FSYSMENB_IPMENB09 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 91 break;
AnnaBridge 188:bcfe06ba3d64 92 case SERIAL_2:
AnnaBridge 188:bcfe06ba3d64 93 obj->UARTx = TSB_UART2;
AnnaBridge 188:bcfe06ba3d64 94 // Enable clock for UART2 and Port G
AnnaBridge 188:bcfe06ba3d64 95 TSB_CG_FSYSMENA_IPMENA25 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 96 TSB_CG_FSYSMENB_IPMENB08 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 97 break;
AnnaBridge 188:bcfe06ba3d64 98 case SERIAL_3:
AnnaBridge 188:bcfe06ba3d64 99 obj->UARTx = TSB_UART3;
AnnaBridge 188:bcfe06ba3d64 100 // Enable clock for UART3 and Port U
AnnaBridge 188:bcfe06ba3d64 101 TSB_CG_FSYSMENA_IPMENA26 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 102 TSB_CG_FSYSMENB_IPMENB18 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 103 break;
AnnaBridge 188:bcfe06ba3d64 104 case SERIAL_4:
AnnaBridge 188:bcfe06ba3d64 105 obj->UARTx = TSB_UART4;
AnnaBridge 188:bcfe06ba3d64 106 // Enable clock for UART4 and Port U
AnnaBridge 188:bcfe06ba3d64 107 TSB_CG_FSYSMENA_IPMENA27 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 108 TSB_CG_FSYSMENB_IPMENB18 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 109 break;
AnnaBridge 188:bcfe06ba3d64 110 case SERIAL_5:
AnnaBridge 188:bcfe06ba3d64 111 obj->UARTx = TSB_UART5;
AnnaBridge 188:bcfe06ba3d64 112 // Enable clock for UART5 and Port J
AnnaBridge 188:bcfe06ba3d64 113 TSB_CG_FSYSMENA_IPMENA28 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 114 TSB_CG_FSYSMENB_IPMENB10 = TXZ_ENABLE;
AnnaBridge 188:bcfe06ba3d64 115 break;
AnnaBridge 188:bcfe06ba3d64 116 default:
AnnaBridge 188:bcfe06ba3d64 117 break;
AnnaBridge 188:bcfe06ba3d64 118 }
AnnaBridge 188:bcfe06ba3d64 119
AnnaBridge 188:bcfe06ba3d64 120 // Set alternate function
AnnaBridge 188:bcfe06ba3d64 121 pinmap_pinout(tx, PinMap_UART_TX);
AnnaBridge 188:bcfe06ba3d64 122 pinmap_pinout(rx, PinMap_UART_RX);
AnnaBridge 188:bcfe06ba3d64 123
AnnaBridge 188:bcfe06ba3d64 124 if (tx != NC && rx != NC) {
AnnaBridge 188:bcfe06ba3d64 125 obj->mode = UART_ENABLE_RX | UART_ENABLE_TX;
AnnaBridge 188:bcfe06ba3d64 126 } else {
AnnaBridge 188:bcfe06ba3d64 127 if (tx != NC) {
AnnaBridge 188:bcfe06ba3d64 128 obj->mode = UART_ENABLE_TX;
AnnaBridge 188:bcfe06ba3d64 129 } else {
AnnaBridge 188:bcfe06ba3d64 130 if (rx != NC) {
AnnaBridge 188:bcfe06ba3d64 131 obj->mode = UART_ENABLE_RX;
AnnaBridge 188:bcfe06ba3d64 132 }
AnnaBridge 188:bcfe06ba3d64 133 }
AnnaBridge 188:bcfe06ba3d64 134 }
AnnaBridge 188:bcfe06ba3d64 135
AnnaBridge 188:bcfe06ba3d64 136 // Software reset
AnnaBridge 188:bcfe06ba3d64 137 uart_swreset(obj->UARTx);
AnnaBridge 188:bcfe06ba3d64 138
AnnaBridge 188:bcfe06ba3d64 139 // Mbed default configurations
AnnaBridge 188:bcfe06ba3d64 140 obj->UARTx->CR0 |= (1U); // Data lengh 8 bit No parity one stop bit
AnnaBridge 188:bcfe06ba3d64 141 prescal.prsel = UART_PLESCALER_1;
AnnaBridge 188:bcfe06ba3d64 142 uart_get_boudrate_setting(cg_get_mphyt0(&paramCG), &prescal, BAUDRATE_DEFAULT, &obj->boud_obj);
AnnaBridge 188:bcfe06ba3d64 143
AnnaBridge 188:bcfe06ba3d64 144 obj->UARTx->BRD |= ((obj->boud_obj.ken) | (obj->boud_obj.brk << 16) | (obj->boud_obj.brn));
AnnaBridge 188:bcfe06ba3d64 145 obj->UARTx->FIFOCLR = (UARTxFIFOCLR_TFCLR_CLEAR | UARTxFIFOCLR_RFCLR_CLEAR); // Clear FIFO
AnnaBridge 188:bcfe06ba3d64 146 obj->UARTx->TRANS |= obj->mode; // Enable TX RX block.
AnnaBridge 188:bcfe06ba3d64 147 obj->UARTx->CR1 = (UART_RX_FIFO_FILL_LEVEL | UART_TX_INT_ENABLE | UART_RX_INT_ENABLE);
AnnaBridge 188:bcfe06ba3d64 148
AnnaBridge 188:bcfe06ba3d64 149 is_stdio_uart = (uart_name == STDIO_UART) ? (1) : (0);
AnnaBridge 188:bcfe06ba3d64 150 if (is_stdio_uart) {
AnnaBridge 188:bcfe06ba3d64 151 stdio_uart_inited = 1;
AnnaBridge 188:bcfe06ba3d64 152 memcpy(&stdio_uart, obj, sizeof(serial_t));
AnnaBridge 188:bcfe06ba3d64 153 }
AnnaBridge 188:bcfe06ba3d64 154 }
AnnaBridge 188:bcfe06ba3d64 155
AnnaBridge 188:bcfe06ba3d64 156 void serial_free(serial_t *obj)
AnnaBridge 188:bcfe06ba3d64 157 {
AnnaBridge 188:bcfe06ba3d64 158 obj->UARTx->TRANS = CLR_REGISTER;
AnnaBridge 188:bcfe06ba3d64 159 obj->UARTx->CR0 = CLR_REGISTER;
AnnaBridge 188:bcfe06ba3d64 160 obj->UARTx->CR1 = CLR_REGISTER;
AnnaBridge 188:bcfe06ba3d64 161 obj->UARTx = CLR_REGISTER;
AnnaBridge 188:bcfe06ba3d64 162 uart_swreset(obj->UARTx);
AnnaBridge 188:bcfe06ba3d64 163 obj->index = (uint32_t)NC;
AnnaBridge 188:bcfe06ba3d64 164 }
AnnaBridge 188:bcfe06ba3d64 165
AnnaBridge 188:bcfe06ba3d64 166 void serial_baud(serial_t *obj, int baudrate)
AnnaBridge 188:bcfe06ba3d64 167 {
AnnaBridge 188:bcfe06ba3d64 168 cg_t paramCG;
AnnaBridge 188:bcfe06ba3d64 169 paramCG.p_instance = TSB_CG;
AnnaBridge 188:bcfe06ba3d64 170 uart_clock_t prescal;
AnnaBridge 188:bcfe06ba3d64 171 prescal.prsel = UART_PLESCALER_1;
AnnaBridge 188:bcfe06ba3d64 172 uart_get_boudrate_setting(cg_get_mphyt0(&paramCG), &prescal, baudrate, &obj->boud_obj);
AnnaBridge 188:bcfe06ba3d64 173 obj->UARTx->BRD = CLR_REGISTER; // Clear BRD register
AnnaBridge 188:bcfe06ba3d64 174 obj->UARTx->BRD |= ((obj->boud_obj.ken) | (obj->boud_obj.brk << 16) | (obj->boud_obj.brn));
AnnaBridge 188:bcfe06ba3d64 175 }
AnnaBridge 188:bcfe06ba3d64 176
AnnaBridge 188:bcfe06ba3d64 177 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
AnnaBridge 188:bcfe06ba3d64 178 {
AnnaBridge 188:bcfe06ba3d64 179 uint32_t parity_check = 0;
AnnaBridge 188:bcfe06ba3d64 180 uint32_t data_length = 0;
AnnaBridge 188:bcfe06ba3d64 181 uint32_t tmp = 0;
AnnaBridge 188:bcfe06ba3d64 182 uint32_t sblen = 0;
AnnaBridge 188:bcfe06ba3d64 183
AnnaBridge 188:bcfe06ba3d64 184 MBED_ASSERT((stop_bits == 1) || (stop_bits == 2));
AnnaBridge 188:bcfe06ba3d64 185 MBED_ASSERT((parity == ParityNone) || (parity == ParityOdd) || (parity == ParityEven));
AnnaBridge 188:bcfe06ba3d64 186 MBED_ASSERT((data_bits > 6) && (data_bits < 10)); // 0: 7 data bits ... 2: 9 data bits
AnnaBridge 188:bcfe06ba3d64 187
AnnaBridge 188:bcfe06ba3d64 188 parity_check = ((parity == ParityOdd) ? 1 :((parity == ParityEven) ? 3 : 0));
AnnaBridge 188:bcfe06ba3d64 189 data_length = (data_bits == 8 ? 1 :((data_bits == 7) ? 0 : 2));
AnnaBridge 188:bcfe06ba3d64 190 sblen = (stop_bits == 1) ? 0 : 1; // 0: 1 stop bits, 1: 2 stop bits
AnnaBridge 188:bcfe06ba3d64 191 tmp = ((sblen << 4) |(parity_check << 2) | data_length);
AnnaBridge 188:bcfe06ba3d64 192 obj->UARTx->CR0 = tmp;
AnnaBridge 188:bcfe06ba3d64 193 }
AnnaBridge 188:bcfe06ba3d64 194
AnnaBridge 188:bcfe06ba3d64 195 // INTERRUPT HANDLING
AnnaBridge 188:bcfe06ba3d64 196 void INTUART0RX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 197 {
AnnaBridge 188:bcfe06ba3d64 198 irq_handler(serial_irq_ids[SERIAL_0], RxIrq);
AnnaBridge 188:bcfe06ba3d64 199 }
AnnaBridge 188:bcfe06ba3d64 200
AnnaBridge 188:bcfe06ba3d64 201 void INTUART0TX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 202 {
AnnaBridge 188:bcfe06ba3d64 203 irq_handler(serial_irq_ids[SERIAL_0], TxIrq);
AnnaBridge 188:bcfe06ba3d64 204 }
AnnaBridge 188:bcfe06ba3d64 205
AnnaBridge 188:bcfe06ba3d64 206 void INTUART1RX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 207 {
AnnaBridge 188:bcfe06ba3d64 208 irq_handler(serial_irq_ids[SERIAL_1], RxIrq);
AnnaBridge 188:bcfe06ba3d64 209 }
AnnaBridge 188:bcfe06ba3d64 210
AnnaBridge 188:bcfe06ba3d64 211 void INTUART1TX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 212 {
AnnaBridge 188:bcfe06ba3d64 213 irq_handler(serial_irq_ids[SERIAL_1], TxIrq);
AnnaBridge 188:bcfe06ba3d64 214 }
AnnaBridge 188:bcfe06ba3d64 215
AnnaBridge 188:bcfe06ba3d64 216 void INTUART2RX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 217 {
AnnaBridge 188:bcfe06ba3d64 218 irq_handler(serial_irq_ids[SERIAL_2], RxIrq);
AnnaBridge 188:bcfe06ba3d64 219 }
AnnaBridge 188:bcfe06ba3d64 220
AnnaBridge 188:bcfe06ba3d64 221 void INTUART2TX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 222 {
AnnaBridge 188:bcfe06ba3d64 223 irq_handler(serial_irq_ids[SERIAL_2], TxIrq);
AnnaBridge 188:bcfe06ba3d64 224 }
AnnaBridge 188:bcfe06ba3d64 225
AnnaBridge 188:bcfe06ba3d64 226 void INTUART3RX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 227 {
AnnaBridge 188:bcfe06ba3d64 228 irq_handler(serial_irq_ids[SERIAL_3], RxIrq);
AnnaBridge 188:bcfe06ba3d64 229 }
AnnaBridge 188:bcfe06ba3d64 230
AnnaBridge 188:bcfe06ba3d64 231 void INTUART3TX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 232 {
AnnaBridge 188:bcfe06ba3d64 233 irq_handler(serial_irq_ids[SERIAL_3], TxIrq);
AnnaBridge 188:bcfe06ba3d64 234 }
AnnaBridge 188:bcfe06ba3d64 235
AnnaBridge 188:bcfe06ba3d64 236 void INTUART4RX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 237 {
AnnaBridge 188:bcfe06ba3d64 238 irq_handler(serial_irq_ids[SERIAL_4], RxIrq);
AnnaBridge 188:bcfe06ba3d64 239 }
AnnaBridge 188:bcfe06ba3d64 240
AnnaBridge 188:bcfe06ba3d64 241 void INTUART4TX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 242 {
AnnaBridge 188:bcfe06ba3d64 243 irq_handler(serial_irq_ids[SERIAL_4], TxIrq);
AnnaBridge 188:bcfe06ba3d64 244 }
AnnaBridge 188:bcfe06ba3d64 245
AnnaBridge 188:bcfe06ba3d64 246 void INTUART5RX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 247 {
AnnaBridge 188:bcfe06ba3d64 248 irq_handler(serial_irq_ids[SERIAL_5], RxIrq);
AnnaBridge 188:bcfe06ba3d64 249 }
AnnaBridge 188:bcfe06ba3d64 250
AnnaBridge 188:bcfe06ba3d64 251 void INTUART5TX_IRQHandler(void)
AnnaBridge 188:bcfe06ba3d64 252 {
AnnaBridge 188:bcfe06ba3d64 253 irq_handler(serial_irq_ids[SERIAL_5], TxIrq);
AnnaBridge 188:bcfe06ba3d64 254 }
AnnaBridge 188:bcfe06ba3d64 255
AnnaBridge 188:bcfe06ba3d64 256 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
AnnaBridge 188:bcfe06ba3d64 257 {
AnnaBridge 188:bcfe06ba3d64 258 irq_handler = handler;
AnnaBridge 188:bcfe06ba3d64 259 serial_irq_ids[obj->index] = id;
AnnaBridge 188:bcfe06ba3d64 260 }
AnnaBridge 188:bcfe06ba3d64 261
AnnaBridge 188:bcfe06ba3d64 262 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
AnnaBridge 188:bcfe06ba3d64 263 {
AnnaBridge 188:bcfe06ba3d64 264 IRQn_Type irq_n = (IRQn_Type)0;
AnnaBridge 188:bcfe06ba3d64 265
AnnaBridge 188:bcfe06ba3d64 266 switch (obj->index) {
AnnaBridge 188:bcfe06ba3d64 267 case SERIAL_0:
AnnaBridge 188:bcfe06ba3d64 268 if (irq == RxIrq) {
AnnaBridge 188:bcfe06ba3d64 269 irq_n = INTUART0RX_IRQn;
AnnaBridge 188:bcfe06ba3d64 270 } else {
AnnaBridge 188:bcfe06ba3d64 271 irq_n = INTUART0TX_IRQn;
AnnaBridge 188:bcfe06ba3d64 272 }
AnnaBridge 188:bcfe06ba3d64 273 break;
AnnaBridge 188:bcfe06ba3d64 274 case SERIAL_1:
AnnaBridge 188:bcfe06ba3d64 275 if (irq == RxIrq) {
AnnaBridge 188:bcfe06ba3d64 276 irq_n = INTUART1RX_IRQn;
AnnaBridge 188:bcfe06ba3d64 277 } else {
AnnaBridge 188:bcfe06ba3d64 278 irq_n = INTUART1TX_IRQn;
AnnaBridge 188:bcfe06ba3d64 279 }
AnnaBridge 188:bcfe06ba3d64 280 break;
AnnaBridge 188:bcfe06ba3d64 281 case SERIAL_2:
AnnaBridge 188:bcfe06ba3d64 282 if (irq == RxIrq) {
AnnaBridge 188:bcfe06ba3d64 283 irq_n = INTUART2RX_IRQn;
AnnaBridge 188:bcfe06ba3d64 284 } else {
AnnaBridge 188:bcfe06ba3d64 285 irq_n = INTUART2TX_IRQn;
AnnaBridge 188:bcfe06ba3d64 286 }
AnnaBridge 188:bcfe06ba3d64 287 break;
AnnaBridge 188:bcfe06ba3d64 288 case SERIAL_3:
AnnaBridge 188:bcfe06ba3d64 289 if (irq == RxIrq) {
AnnaBridge 188:bcfe06ba3d64 290 irq_n = INTUART3RX_IRQn;
AnnaBridge 188:bcfe06ba3d64 291 } else {
AnnaBridge 188:bcfe06ba3d64 292 irq_n = INTUART3TX_IRQn;
AnnaBridge 188:bcfe06ba3d64 293 }
AnnaBridge 188:bcfe06ba3d64 294 break;
AnnaBridge 188:bcfe06ba3d64 295 case SERIAL_4:
AnnaBridge 188:bcfe06ba3d64 296 if (irq == RxIrq) {
AnnaBridge 188:bcfe06ba3d64 297 irq_n = INTUART4RX_IRQn;
AnnaBridge 188:bcfe06ba3d64 298 } else {
AnnaBridge 188:bcfe06ba3d64 299 irq_n = INTUART4TX_IRQn;
AnnaBridge 188:bcfe06ba3d64 300 }
AnnaBridge 188:bcfe06ba3d64 301 break;
AnnaBridge 188:bcfe06ba3d64 302 case SERIAL_5:
AnnaBridge 188:bcfe06ba3d64 303 if (irq == RxIrq) {
AnnaBridge 188:bcfe06ba3d64 304 irq_n = INTUART5RX_IRQn;
AnnaBridge 188:bcfe06ba3d64 305 } else {
AnnaBridge 188:bcfe06ba3d64 306 irq_n = INTUART5TX_IRQn;
AnnaBridge 188:bcfe06ba3d64 307 }
AnnaBridge 188:bcfe06ba3d64 308 break;
AnnaBridge 188:bcfe06ba3d64 309 default:
AnnaBridge 188:bcfe06ba3d64 310 break;
AnnaBridge 188:bcfe06ba3d64 311 }
AnnaBridge 188:bcfe06ba3d64 312
AnnaBridge 188:bcfe06ba3d64 313 NVIC_ClearPendingIRQ(irq_n);
AnnaBridge 188:bcfe06ba3d64 314
AnnaBridge 188:bcfe06ba3d64 315 if (enable) {
AnnaBridge 188:bcfe06ba3d64 316 NVIC_EnableIRQ(irq_n);
AnnaBridge 188:bcfe06ba3d64 317 } else {
AnnaBridge 188:bcfe06ba3d64 318 NVIC_DisableIRQ(irq_n);
AnnaBridge 188:bcfe06ba3d64 319 }
AnnaBridge 188:bcfe06ba3d64 320 }
AnnaBridge 188:bcfe06ba3d64 321
AnnaBridge 188:bcfe06ba3d64 322 int serial_getc(serial_t *obj)
AnnaBridge 188:bcfe06ba3d64 323 {
AnnaBridge 188:bcfe06ba3d64 324 int data = 0;
AnnaBridge 188:bcfe06ba3d64 325
AnnaBridge 188:bcfe06ba3d64 326 while (!serial_readable(obj)) { // Wait until Rx buffer is full
AnnaBridge 188:bcfe06ba3d64 327 // Do nothing
AnnaBridge 188:bcfe06ba3d64 328 }
AnnaBridge 188:bcfe06ba3d64 329
AnnaBridge 188:bcfe06ba3d64 330 // Read Data Register
AnnaBridge 188:bcfe06ba3d64 331 data = (obj->UARTx->DR & 0xFFU);
AnnaBridge 188:bcfe06ba3d64 332 obj->UARTx->SR |= (1U << 6); // Clear RXEND flag
AnnaBridge 188:bcfe06ba3d64 333
AnnaBridge 188:bcfe06ba3d64 334 return data;
AnnaBridge 188:bcfe06ba3d64 335 }
AnnaBridge 188:bcfe06ba3d64 336
AnnaBridge 188:bcfe06ba3d64 337 void serial_putc(serial_t *obj, int c)
AnnaBridge 188:bcfe06ba3d64 338 {
AnnaBridge 188:bcfe06ba3d64 339 while (!serial_writable(obj)) {
AnnaBridge 188:bcfe06ba3d64 340 // Do nothing
AnnaBridge 188:bcfe06ba3d64 341 }
AnnaBridge 188:bcfe06ba3d64 342
AnnaBridge 188:bcfe06ba3d64 343 // Write Data Register
AnnaBridge 188:bcfe06ba3d64 344 obj->UARTx->DR = (c & 0xFF);
AnnaBridge 188:bcfe06ba3d64 345
AnnaBridge 188:bcfe06ba3d64 346 while ((obj->UARTx->SR & (1U << 14)) == 0) {
AnnaBridge 188:bcfe06ba3d64 347 // Do nothing
AnnaBridge 188:bcfe06ba3d64 348 }
AnnaBridge 188:bcfe06ba3d64 349
AnnaBridge 188:bcfe06ba3d64 350 obj->UARTx->SR |= (1U << 14); // Clear TXEND flag
AnnaBridge 188:bcfe06ba3d64 351 }
AnnaBridge 188:bcfe06ba3d64 352
AnnaBridge 188:bcfe06ba3d64 353 int serial_readable(serial_t *obj)
AnnaBridge 188:bcfe06ba3d64 354 {
AnnaBridge 188:bcfe06ba3d64 355 int ret = 0;
AnnaBridge 188:bcfe06ba3d64 356
AnnaBridge 188:bcfe06ba3d64 357 if ((obj->UARTx->SR & 0x000F) != 0) {
AnnaBridge 188:bcfe06ba3d64 358 ret = 1;
AnnaBridge 188:bcfe06ba3d64 359 }
AnnaBridge 188:bcfe06ba3d64 360
AnnaBridge 188:bcfe06ba3d64 361 return ret;
AnnaBridge 188:bcfe06ba3d64 362 }
AnnaBridge 188:bcfe06ba3d64 363
AnnaBridge 188:bcfe06ba3d64 364 int serial_writable(serial_t *obj)
AnnaBridge 188:bcfe06ba3d64 365 {
AnnaBridge 188:bcfe06ba3d64 366 int ret = 0;
AnnaBridge 188:bcfe06ba3d64 367
AnnaBridge 188:bcfe06ba3d64 368 if ((obj->UARTx->SR & 0x8000) == 0) {
AnnaBridge 188:bcfe06ba3d64 369 ret = 1;
AnnaBridge 188:bcfe06ba3d64 370 }
AnnaBridge 188:bcfe06ba3d64 371
AnnaBridge 188:bcfe06ba3d64 372 return ret;
AnnaBridge 188:bcfe06ba3d64 373 }
AnnaBridge 188:bcfe06ba3d64 374
AnnaBridge 188:bcfe06ba3d64 375 // Pause transmission
AnnaBridge 188:bcfe06ba3d64 376 void serial_break_set(serial_t *obj)
AnnaBridge 188:bcfe06ba3d64 377 {
AnnaBridge 188:bcfe06ba3d64 378 obj->UARTx->TRANS |= 0x08;
AnnaBridge 188:bcfe06ba3d64 379 }
AnnaBridge 188:bcfe06ba3d64 380
AnnaBridge 188:bcfe06ba3d64 381 // Switch to normal transmission
AnnaBridge 188:bcfe06ba3d64 382 void serial_break_clear(serial_t *obj)
AnnaBridge 188:bcfe06ba3d64 383 {
AnnaBridge 188:bcfe06ba3d64 384 obj->UARTx->TRANS &= ~(0x08);
AnnaBridge 188:bcfe06ba3d64 385 }
AnnaBridge 188:bcfe06ba3d64 386
AnnaBridge 188:bcfe06ba3d64 387 static void uart_swreset(TSB_UART_TypeDef *UARTx)
AnnaBridge 188:bcfe06ba3d64 388 {
AnnaBridge 188:bcfe06ba3d64 389 while (((UARTx->SWRST) & UARTxSWRST_SWRSTF_MASK) == UARTxSWRST_SWRSTF_RUN) {
AnnaBridge 188:bcfe06ba3d64 390 // No process
AnnaBridge 188:bcfe06ba3d64 391 }
AnnaBridge 188:bcfe06ba3d64 392
AnnaBridge 188:bcfe06ba3d64 393 UARTx->SWRST = UARTxSWRST_SWRST_10;
AnnaBridge 188:bcfe06ba3d64 394 UARTx->SWRST = UARTxSWRST_SWRST_01;
AnnaBridge 188:bcfe06ba3d64 395
AnnaBridge 188:bcfe06ba3d64 396 while (((UARTx->SWRST) & UARTxSWRST_SWRSTF_MASK) == UARTxSWRST_SWRSTF_RUN) {
AnnaBridge 188:bcfe06ba3d64 397 // No process
AnnaBridge 188:bcfe06ba3d64 398 }
AnnaBridge 188:bcfe06ba3d64 399 }