mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

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

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

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
149:156823d33999 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 80:bdf1132a57cf 1 /* mbed Microcontroller Library
mbed_official 80:bdf1132a57cf 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 80:bdf1132a57cf 3 *
mbed_official 80:bdf1132a57cf 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 80:bdf1132a57cf 5 * you may not use this file except in compliance with the License.
mbed_official 80:bdf1132a57cf 6 * You may obtain a copy of the License at
mbed_official 80:bdf1132a57cf 7 *
mbed_official 80:bdf1132a57cf 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 80:bdf1132a57cf 9 *
mbed_official 80:bdf1132a57cf 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 80:bdf1132a57cf 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 80:bdf1132a57cf 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 80:bdf1132a57cf 13 * See the License for the specific language governing permissions and
mbed_official 80:bdf1132a57cf 14 * limitations under the License.
mbed_official 80:bdf1132a57cf 15 */
mbed_official 80:bdf1132a57cf 16 // math.h required for floating point operations for baud rate calculation
mbed_official 80:bdf1132a57cf 17 #include <math.h>
mbed_official 80:bdf1132a57cf 18 #include <stdio.h>
mbed_official 80:bdf1132a57cf 19 #include <string.h>
mbed_official 80:bdf1132a57cf 20 #include <stdlib.h>
mbed_official 80:bdf1132a57cf 21
mbed_official 80:bdf1132a57cf 22 #include "serial_api.h"
mbed_official 80:bdf1132a57cf 23 #include "cmsis.h"
mbed_official 80:bdf1132a57cf 24 #include "pinmap.h"
mbed_official 80:bdf1132a57cf 25 #include "mbed_error.h"
mbed_official 80:bdf1132a57cf 26 #include "gpio_api.h"
mbed_official 80:bdf1132a57cf 27
mbed_official 80:bdf1132a57cf 28 /******************************************************************************
mbed_official 80:bdf1132a57cf 29 * INITIALIZATION
mbed_official 80:bdf1132a57cf 30 ******************************************************************************/
mbed_official 80:bdf1132a57cf 31
mbed_official 80:bdf1132a57cf 32 static const PinMap PinMap_UART_TX[] = {
mbed_official 80:bdf1132a57cf 33 {USBTX , UART_0, 0},
mbed_official 80:bdf1132a57cf 34 {XB_TX , UART_1, 0},
mbed_official 80:bdf1132a57cf 35 {SH0_TX , UART_2, 0},
mbed_official 80:bdf1132a57cf 36 {SH1_TX , UART_3, 0},
mbed_official 80:bdf1132a57cf 37 {NC , NC , 0}
mbed_official 80:bdf1132a57cf 38 };
mbed_official 80:bdf1132a57cf 39
mbed_official 80:bdf1132a57cf 40 static const PinMap PinMap_UART_RX[] = {
mbed_official 80:bdf1132a57cf 41 {USBRX , UART_0, 0},
mbed_official 80:bdf1132a57cf 42 {XB_RX , UART_1, 0},
mbed_official 80:bdf1132a57cf 43 {SH0_RX , UART_2, 0},
mbed_official 80:bdf1132a57cf 44 {SH1_RX , UART_3, 0},
mbed_official 80:bdf1132a57cf 45 {NC , NC , 0}
mbed_official 80:bdf1132a57cf 46 };
mbed_official 80:bdf1132a57cf 47
mbed_official 80:bdf1132a57cf 48 #define UART_NUM 4
mbed_official 80:bdf1132a57cf 49
mbed_official 80:bdf1132a57cf 50 static uart_irq_handler irq_handler;
mbed_official 80:bdf1132a57cf 51
mbed_official 80:bdf1132a57cf 52 int stdio_uart_inited = 0;
mbed_official 80:bdf1132a57cf 53 serial_t stdio_uart;
mbed_official 80:bdf1132a57cf 54
mbed_official 80:bdf1132a57cf 55 struct serial_global_data_s {
mbed_official 80:bdf1132a57cf 56 uint32_t serial_irq_id;
mbed_official 80:bdf1132a57cf 57 gpio_t sw_rts, sw_cts;
mbed_official 80:bdf1132a57cf 58 uint8_t count, rx_irq_set_flow, rx_irq_set_api;
mbed_official 80:bdf1132a57cf 59 };
mbed_official 80:bdf1132a57cf 60
mbed_official 80:bdf1132a57cf 61 static struct serial_global_data_s uart_data[UART_NUM];
mbed_official 80:bdf1132a57cf 62
mbed_official 80:bdf1132a57cf 63 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 80:bdf1132a57cf 64 int is_stdio_uart = 0;
mbed_official 80:bdf1132a57cf 65
mbed_official 80:bdf1132a57cf 66 // determine the UART to use
mbed_official 80:bdf1132a57cf 67 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 80:bdf1132a57cf 68 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 80:bdf1132a57cf 69 UARTName uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 80:bdf1132a57cf 70 if ((int)uart == NC) {
mbed_official 80:bdf1132a57cf 71 error("Serial pinout mapping failed");
mbed_official 80:bdf1132a57cf 72 }
mbed_official 80:bdf1132a57cf 73
mbed_official 80:bdf1132a57cf 74 obj->uart = (CMSDK_UART_TypeDef *)uart;
mbed_official 80:bdf1132a57cf 75 //set baud rate and enable Uart in normarl mode (RX and TX enabled)
mbed_official 80:bdf1132a57cf 76 switch (uart)
mbed_official 80:bdf1132a57cf 77 {
mbed_official 80:bdf1132a57cf 78 case UART_0: //UART HEADER
mbed_official 80:bdf1132a57cf 79 {
mbed_official 80:bdf1132a57cf 80 CMSDK_UART1->CTRL = 0x0; // Disable UART when changing configuration
mbed_official 80:bdf1132a57cf 81 if((int)tx != NC)
mbed_official 80:bdf1132a57cf 82 {
mbed_official 80:bdf1132a57cf 83 CMSDK_UART1->CTRL |= 0x01; // TX enable
mbed_official 80:bdf1132a57cf 84 } else {
mbed_official 80:bdf1132a57cf 85 CMSDK_UART1->CTRL &= 0xFFFE; // TX disable
mbed_official 80:bdf1132a57cf 86 }
mbed_official 80:bdf1132a57cf 87 if((int)rx != NC)
mbed_official 80:bdf1132a57cf 88 {
mbed_official 80:bdf1132a57cf 89 CMSDK_UART1->CTRL |= 0x02; // RX enable
mbed_official 80:bdf1132a57cf 90 } else {
mbed_official 80:bdf1132a57cf 91 CMSDK_UART1->CTRL &= 0xFFFD; // RX disable
mbed_official 80:bdf1132a57cf 92 }
mbed_official 80:bdf1132a57cf 93 }
mbed_official 80:bdf1132a57cf 94 break;
mbed_official 80:bdf1132a57cf 95 case UART_1: //XBEE SOCKET UART
mbed_official 80:bdf1132a57cf 96 {
mbed_official 80:bdf1132a57cf 97 CMSDK_UART3->CTRL = 0x00; // Disable UART when changing configuration
mbed_official 80:bdf1132a57cf 98 if((int)tx != NC)
mbed_official 80:bdf1132a57cf 99 {
mbed_official 80:bdf1132a57cf 100 CMSDK_UART3->CTRL = 0x1; // TX enable
mbed_official 80:bdf1132a57cf 101 CMSDK_GPIO4->ALTFUNCSET |= 0x0100;
mbed_official 80:bdf1132a57cf 102 }
mbed_official 80:bdf1132a57cf 103 if((int)rx != NC)
mbed_official 80:bdf1132a57cf 104 {
mbed_official 80:bdf1132a57cf 105 CMSDK_UART3->CTRL |= 0x2; // RX enable
mbed_official 80:bdf1132a57cf 106 CMSDK_GPIO4->ALTFUNCSET |= 0x0080;
mbed_official 80:bdf1132a57cf 107 }
mbed_official 80:bdf1132a57cf 108 }
mbed_official 80:bdf1132a57cf 109 break;
mbed_official 80:bdf1132a57cf 110 case UART_2: //Sheild0 UART
mbed_official 80:bdf1132a57cf 111 {
mbed_official 80:bdf1132a57cf 112 CMSDK_UART0->CTRL = 0x00; // Disable UART when changing configuration
mbed_official 80:bdf1132a57cf 113 if((int)uart_tx != NC)
mbed_official 80:bdf1132a57cf 114 {
mbed_official 80:bdf1132a57cf 115 CMSDK_UART0->CTRL |= 0x01; // TX enable
mbed_official 80:bdf1132a57cf 116 CMSDK_GPIO0->ALTFUNCSET |= 0x0002;
mbed_official 80:bdf1132a57cf 117 }
mbed_official 80:bdf1132a57cf 118
mbed_official 80:bdf1132a57cf 119 if((int)uart_rx != NC)
mbed_official 80:bdf1132a57cf 120 {
mbed_official 80:bdf1132a57cf 121 CMSDK_UART0->CTRL |= 0x02; // RX enable
mbed_official 80:bdf1132a57cf 122 CMSDK_GPIO0->ALTFUNCSET |= 0x0001;
mbed_official 80:bdf1132a57cf 123 }
mbed_official 80:bdf1132a57cf 124 }
mbed_official 80:bdf1132a57cf 125 break;
mbed_official 80:bdf1132a57cf 126 case UART_3: //Sheild1 UART
mbed_official 80:bdf1132a57cf 127 {
mbed_official 80:bdf1132a57cf 128 CMSDK_UART2->CTRL = 0x00; // Disable UART when changing configuration
mbed_official 80:bdf1132a57cf 129 if((int)tx != NC)
mbed_official 80:bdf1132a57cf 130 {
mbed_official 80:bdf1132a57cf 131 CMSDK_UART2->CTRL = 0x1; // TX enable
mbed_official 80:bdf1132a57cf 132 CMSDK_GPIO1->ALTFUNCSET |= 0x0002;
mbed_official 80:bdf1132a57cf 133 }
mbed_official 80:bdf1132a57cf 134 if((int)rx != NC)
mbed_official 80:bdf1132a57cf 135 {
mbed_official 80:bdf1132a57cf 136 CMSDK_UART2->CTRL |= 0x2; // RX enable
mbed_official 80:bdf1132a57cf 137 CMSDK_GPIO1->ALTFUNCSET |= 0x0001;
mbed_official 80:bdf1132a57cf 138 }
mbed_official 80:bdf1132a57cf 139 }
mbed_official 80:bdf1132a57cf 140 break;
mbed_official 80:bdf1132a57cf 141 }
mbed_official 80:bdf1132a57cf 142
mbed_official 80:bdf1132a57cf 143 // set default baud rate and format
mbed_official 80:bdf1132a57cf 144 serial_baud (obj, 9600);
mbed_official 80:bdf1132a57cf 145
mbed_official 80:bdf1132a57cf 146 // pinout the chosen uart
mbed_official 80:bdf1132a57cf 147 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 80:bdf1132a57cf 148 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 80:bdf1132a57cf 149
mbed_official 80:bdf1132a57cf 150 switch (uart) {
mbed_official 80:bdf1132a57cf 151 case UART_0: obj->index = 0; break;
mbed_official 80:bdf1132a57cf 152 case UART_1: obj->index = 1; break;
mbed_official 80:bdf1132a57cf 153 case UART_2: obj->index = 2; break;
mbed_official 80:bdf1132a57cf 154 case UART_3: obj->index = 3; break;
mbed_official 80:bdf1132a57cf 155 }
mbed_official 80:bdf1132a57cf 156 uart_data[obj->index].sw_rts.pin = NC;
mbed_official 80:bdf1132a57cf 157 uart_data[obj->index].sw_cts.pin = NC;
mbed_official 80:bdf1132a57cf 158 serial_set_flow_control(obj, FlowControlNone, NC, NC);
mbed_official 80:bdf1132a57cf 159
mbed_official 80:bdf1132a57cf 160 is_stdio_uart = (uart == STDIO_UART) ? (1) : (0);
mbed_official 80:bdf1132a57cf 161
mbed_official 80:bdf1132a57cf 162 if (is_stdio_uart) {
mbed_official 80:bdf1132a57cf 163 stdio_uart_inited = 1;
mbed_official 80:bdf1132a57cf 164 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 80:bdf1132a57cf 165 }
mbed_official 80:bdf1132a57cf 166 }
mbed_official 80:bdf1132a57cf 167
mbed_official 80:bdf1132a57cf 168 void serial_free(serial_t *obj) {
mbed_official 80:bdf1132a57cf 169 uart_data[obj->index].serial_irq_id = 0;
mbed_official 80:bdf1132a57cf 170 }
mbed_official 80:bdf1132a57cf 171
mbed_official 80:bdf1132a57cf 172 // serial_baud
mbed_official 80:bdf1132a57cf 173 // set the baud rate, taking in to account the current SystemFrequency
mbed_official 80:bdf1132a57cf 174 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 80:bdf1132a57cf 175 // The MPS2 has a simple divider to control the baud rate. The formula is:
mbed_official 80:bdf1132a57cf 176 //
mbed_official 80:bdf1132a57cf 177 // Baudrate = PCLK / BAUDDIV
mbed_official 80:bdf1132a57cf 178 //
mbed_official 80:bdf1132a57cf 179 // PCLK = 24 Mhz
mbed_official 80:bdf1132a57cf 180 // so for a desired baud rate of 9600
mbed_official 80:bdf1132a57cf 181 // 24000000 / 9600 = 2500
mbed_official 80:bdf1132a57cf 182 //
mbed_official 80:bdf1132a57cf 183 //check to see if minimum baud value entered
mbed_official 80:bdf1132a57cf 184 int baudrate_div = 0;
mbed_official 80:bdf1132a57cf 185 baudrate_div = SystemCoreClock / baudrate;
mbed_official 80:bdf1132a57cf 186 if(baudrate >= 16){
mbed_official 80:bdf1132a57cf 187 switch ((int)obj->uart) {
mbed_official 80:bdf1132a57cf 188 case UART_0: CMSDK_UART1->BAUDDIV = baudrate_div; break;
mbed_official 80:bdf1132a57cf 189 case UART_1: CMSDK_UART3->BAUDDIV = baudrate_div; break;
mbed_official 80:bdf1132a57cf 190 case UART_2: CMSDK_UART0->BAUDDIV = baudrate_div; break;
mbed_official 80:bdf1132a57cf 191 case UART_3: CMSDK_UART2->BAUDDIV = baudrate_div; break;
mbed_official 80:bdf1132a57cf 192 default: error("serial_baud"); break;
mbed_official 80:bdf1132a57cf 193 }
mbed_official 80:bdf1132a57cf 194 } else {
mbed_official 80:bdf1132a57cf 195 error("serial_baud");
mbed_official 80:bdf1132a57cf 196 }
mbed_official 80:bdf1132a57cf 197
mbed_official 80:bdf1132a57cf 198 }
mbed_official 80:bdf1132a57cf 199
mbed_official 80:bdf1132a57cf 200 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 80:bdf1132a57cf 201 }
mbed_official 80:bdf1132a57cf 202
mbed_official 80:bdf1132a57cf 203 /******************************************************************************
mbed_official 80:bdf1132a57cf 204 * INTERRUPTS HANDLING
mbed_official 80:bdf1132a57cf 205 ******************************************************************************/
mbed_official 80:bdf1132a57cf 206 static inline void uart_irq(uint32_t intstatus, uint32_t index, CMSDK_UART_TypeDef *puart) {
mbed_official 80:bdf1132a57cf 207 SerialIrq irq_type;
mbed_official 80:bdf1132a57cf 208 switch (intstatus)
mbed_official 80:bdf1132a57cf 209 {
mbed_official 80:bdf1132a57cf 210 case 1:
mbed_official 80:bdf1132a57cf 211 {
mbed_official 80:bdf1132a57cf 212 irq_type = TxIrq;
mbed_official 80:bdf1132a57cf 213 }
mbed_official 80:bdf1132a57cf 214 break;
mbed_official 80:bdf1132a57cf 215
mbed_official 80:bdf1132a57cf 216 case 2:
mbed_official 80:bdf1132a57cf 217 {
mbed_official 80:bdf1132a57cf 218 irq_type = RxIrq;
mbed_official 80:bdf1132a57cf 219 }
mbed_official 80:bdf1132a57cf 220 break;
mbed_official 80:bdf1132a57cf 221
mbed_official 80:bdf1132a57cf 222 default: return;
mbed_official 80:bdf1132a57cf 223 } /* End of Switch */
mbed_official 80:bdf1132a57cf 224
mbed_official 80:bdf1132a57cf 225 if ((RxIrq == irq_type) && (NC != uart_data[index].sw_rts.pin))
mbed_official 80:bdf1132a57cf 226 {
mbed_official 80:bdf1132a57cf 227 gpio_write(&uart_data[index].sw_rts, 1);
mbed_official 80:bdf1132a57cf 228 // Disable interrupt if it wasn't enabled by other part of the application
mbed_official 80:bdf1132a57cf 229 if (!uart_data[index].rx_irq_set_api)
mbed_official 80:bdf1132a57cf 230 {
mbed_official 80:bdf1132a57cf 231 /* Disable Rx interrupt */
mbed_official 80:bdf1132a57cf 232 puart->CTRL &= ~(CMSDK_UART_CTRL_RXIRQEN_Msk);
mbed_official 80:bdf1132a57cf 233 }
mbed_official 80:bdf1132a57cf 234 }
mbed_official 80:bdf1132a57cf 235
mbed_official 80:bdf1132a57cf 236 if (uart_data[index].serial_irq_id != 0)
mbed_official 80:bdf1132a57cf 237 {
mbed_official 80:bdf1132a57cf 238 if ((irq_type != RxIrq) || (uart_data[index].rx_irq_set_api))
mbed_official 80:bdf1132a57cf 239 {
mbed_official 80:bdf1132a57cf 240 irq_handler(uart_data[index].serial_irq_id, irq_type);
mbed_official 80:bdf1132a57cf 241 }
mbed_official 80:bdf1132a57cf 242 }
mbed_official 80:bdf1132a57cf 243
mbed_official 80:bdf1132a57cf 244 if( irq_type == TxIrq )
mbed_official 80:bdf1132a57cf 245 {
mbed_official 80:bdf1132a57cf 246 /* Clear the TX interrupt Flag */
mbed_official 80:bdf1132a57cf 247 puart->INTCLEAR |= 0x01;
mbed_official 80:bdf1132a57cf 248 }
mbed_official 80:bdf1132a57cf 249 else
mbed_official 80:bdf1132a57cf 250 {
mbed_official 80:bdf1132a57cf 251 /* Clear the Rx interupt Flag */
mbed_official 80:bdf1132a57cf 252 puart->INTCLEAR |= 0x02;
mbed_official 80:bdf1132a57cf 253 }
mbed_official 80:bdf1132a57cf 254 }
mbed_official 80:bdf1132a57cf 255
mbed_official 80:bdf1132a57cf 256 void uart0_irq() {uart_irq(CMSDK_UART1->INTSTATUS & 0x3, 0, (CMSDK_UART_TypeDef*)CMSDK_UART1);}
mbed_official 80:bdf1132a57cf 257 void uart1_irq() {uart_irq(CMSDK_UART3->INTSTATUS & 0x3, 1, (CMSDK_UART_TypeDef*)CMSDK_UART3);}
mbed_official 80:bdf1132a57cf 258 void uart2_irq() {uart_irq(CMSDK_UART0->INTSTATUS & 0x3, 2, (CMSDK_UART_TypeDef*)CMSDK_UART0);}
mbed_official 80:bdf1132a57cf 259 void uart3_irq() {uart_irq(CMSDK_UART2->INTSTATUS & 0x3, 3, (CMSDK_UART_TypeDef*)CMSDK_UART2);}
mbed_official 80:bdf1132a57cf 260
mbed_official 80:bdf1132a57cf 261 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 80:bdf1132a57cf 262 irq_handler = handler;
mbed_official 80:bdf1132a57cf 263 uart_data[obj->index].serial_irq_id = id;
mbed_official 80:bdf1132a57cf 264 }
mbed_official 80:bdf1132a57cf 265
mbed_official 80:bdf1132a57cf 266 static void serial_irq_set_internal(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 80:bdf1132a57cf 267 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 80:bdf1132a57cf 268 uint32_t vector = 0;
mbed_official 80:bdf1132a57cf 269 switch ((int)obj->uart)
mbed_official 80:bdf1132a57cf 270 {
mbed_official 80:bdf1132a57cf 271 case UART_0:
mbed_official 80:bdf1132a57cf 272 irq_n = UART0_IRQn;
mbed_official 80:bdf1132a57cf 273 vector = (uint32_t)&uart0_irq;
mbed_official 80:bdf1132a57cf 274 break;
mbed_official 80:bdf1132a57cf 275 case UART_1:
mbed_official 80:bdf1132a57cf 276 irq_n = UART1_IRQn;
mbed_official 80:bdf1132a57cf 277 vector = (uint32_t)&uart1_irq;
mbed_official 80:bdf1132a57cf 278 break;
mbed_official 80:bdf1132a57cf 279 case UART_2:
mbed_official 80:bdf1132a57cf 280 {
mbed_official 80:bdf1132a57cf 281 irq_n = UART2_IRQn;
mbed_official 80:bdf1132a57cf 282 vector = (uint32_t)&uart2_irq;
mbed_official 80:bdf1132a57cf 283 }
mbed_official 80:bdf1132a57cf 284 break;
mbed_official 80:bdf1132a57cf 285 case UART_3:
mbed_official 80:bdf1132a57cf 286 {
mbed_official 80:bdf1132a57cf 287 irq_n = UART3_IRQn;
mbed_official 80:bdf1132a57cf 288 vector = (uint32_t)&uart3_irq;
mbed_official 80:bdf1132a57cf 289 }
mbed_official 80:bdf1132a57cf 290 break;
mbed_official 80:bdf1132a57cf 291 }
mbed_official 80:bdf1132a57cf 292
mbed_official 80:bdf1132a57cf 293 if (enable)
mbed_official 80:bdf1132a57cf 294 {
mbed_official 80:bdf1132a57cf 295 if (irq == TxIrq)
mbed_official 80:bdf1132a57cf 296 {
mbed_official 80:bdf1132a57cf 297 /* set TX interrupt enable in CTRL REG */
mbed_official 80:bdf1132a57cf 298 obj->uart->CTRL |= CMSDK_UART_CTRL_TXIRQEN_Msk;
mbed_official 80:bdf1132a57cf 299 }
mbed_official 80:bdf1132a57cf 300 else
mbed_official 80:bdf1132a57cf 301 {
mbed_official 80:bdf1132a57cf 302 /* set Rx interrupt on in CTRL REG */
mbed_official 80:bdf1132a57cf 303 obj->uart->CTRL |= CMSDK_UART_CTRL_RXIRQEN_Msk;
mbed_official 80:bdf1132a57cf 304 }
mbed_official 80:bdf1132a57cf 305 NVIC_SetVector(irq_n, vector);
mbed_official 80:bdf1132a57cf 306 NVIC_EnableIRQ(irq_n);
mbed_official 80:bdf1132a57cf 307 }
mbed_official 80:bdf1132a57cf 308 else if ((irq == TxIrq) || (uart_data[obj->index].rx_irq_set_api + uart_data[obj->index].rx_irq_set_flow == 0))
mbed_official 80:bdf1132a57cf 309 { /* Disable IRQ */
mbed_official 80:bdf1132a57cf 310 int all_disabled = 0;
mbed_official 80:bdf1132a57cf 311 SerialIrq other_irq = (irq == RxIrq) ? (TxIrq) : (RxIrq);
mbed_official 80:bdf1132a57cf 312
mbed_official 80:bdf1132a57cf 313 obj->uart->CTRL &= ~(1 << (irq + 2));
mbed_official 80:bdf1132a57cf 314
mbed_official 80:bdf1132a57cf 315 all_disabled = (obj->uart->CTRL & (1 << (other_irq + 2))) == 0;
mbed_official 80:bdf1132a57cf 316
mbed_official 80:bdf1132a57cf 317 if (all_disabled)
mbed_official 80:bdf1132a57cf 318 {
mbed_official 80:bdf1132a57cf 319 NVIC_DisableIRQ(irq_n);
mbed_official 80:bdf1132a57cf 320 }
mbed_official 80:bdf1132a57cf 321 }
mbed_official 80:bdf1132a57cf 322 }
mbed_official 80:bdf1132a57cf 323
mbed_official 80:bdf1132a57cf 324 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 80:bdf1132a57cf 325 if (RxIrq == irq)
mbed_official 80:bdf1132a57cf 326 uart_data[obj->index].rx_irq_set_api = enable;
mbed_official 80:bdf1132a57cf 327 serial_irq_set_internal(obj, irq, enable);
mbed_official 80:bdf1132a57cf 328 }
mbed_official 80:bdf1132a57cf 329
mbed_official 80:bdf1132a57cf 330 /******************************************************************************
mbed_official 80:bdf1132a57cf 331 * READ/WRITE
mbed_official 80:bdf1132a57cf 332 ******************************************************************************/
mbed_official 80:bdf1132a57cf 333 int serial_getc(serial_t *obj) {
mbed_official 80:bdf1132a57cf 334 while (serial_readable(obj) == 0);
mbed_official 80:bdf1132a57cf 335 int data = obj->uart->DATA;
mbed_official 80:bdf1132a57cf 336 return data;
mbed_official 80:bdf1132a57cf 337 }
mbed_official 80:bdf1132a57cf 338
mbed_official 80:bdf1132a57cf 339 void serial_putc(serial_t *obj, int c) {
mbed_official 80:bdf1132a57cf 340 while (serial_writable(obj));
mbed_official 80:bdf1132a57cf 341 obj->uart->DATA = c;
mbed_official 80:bdf1132a57cf 342 }
mbed_official 80:bdf1132a57cf 343
mbed_official 80:bdf1132a57cf 344 int serial_readable(serial_t *obj) {
mbed_official 80:bdf1132a57cf 345 return obj->uart->STATE & 0x2;
mbed_official 80:bdf1132a57cf 346 }
mbed_official 80:bdf1132a57cf 347
mbed_official 80:bdf1132a57cf 348 int serial_writable(serial_t *obj) {
mbed_official 80:bdf1132a57cf 349 return obj->uart->STATE & 0x1;
mbed_official 80:bdf1132a57cf 350 }
mbed_official 80:bdf1132a57cf 351
mbed_official 80:bdf1132a57cf 352 void serial_clear(serial_t *obj) {
mbed_official 80:bdf1132a57cf 353 obj->uart->DATA = 0x00;
mbed_official 80:bdf1132a57cf 354 }
mbed_official 80:bdf1132a57cf 355
mbed_official 80:bdf1132a57cf 356 void serial_pinout_tx(PinName tx) {
mbed_official 80:bdf1132a57cf 357 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 80:bdf1132a57cf 358 }
mbed_official 80:bdf1132a57cf 359
mbed_official 80:bdf1132a57cf 360 void serial_break_set(serial_t *obj) {
mbed_official 80:bdf1132a57cf 361 }
mbed_official 80:bdf1132a57cf 362
mbed_official 80:bdf1132a57cf 363 void serial_break_clear(serial_t *obj) {
mbed_official 80:bdf1132a57cf 364 }
mbed_official 80:bdf1132a57cf 365 void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow) {
mbed_official 80:bdf1132a57cf 366 }
mbed_official 80:bdf1132a57cf 367