mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_LPC/serial_api.c@181:57724642e740, 2018-02-16 (annotated)
- Committer:
- AnnaBridge
- Date:
- Fri Feb 16 16:09:33 2018 +0000
- Revision:
- 181:57724642e740
- Parent:
- targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/api/serial_api.c@170:19eb464bc2be
- Child:
- 189:f392fc9709a3
mbed-dev library. Release version 159.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Kojto | 170:19eb464bc2be | 1 | /* mbed Microcontroller Library |
Kojto | 170:19eb464bc2be | 2 | * Copyright (c) 2006-2013 ARM Limited |
Kojto | 170:19eb464bc2be | 3 | * |
Kojto | 170:19eb464bc2be | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
Kojto | 170:19eb464bc2be | 5 | * you may not use this file except in compliance with the License. |
Kojto | 170:19eb464bc2be | 6 | * You may obtain a copy of the License at |
Kojto | 170:19eb464bc2be | 7 | * |
Kojto | 170:19eb464bc2be | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
Kojto | 170:19eb464bc2be | 9 | * |
Kojto | 170:19eb464bc2be | 10 | * Unless required by applicable law or agreed to in writing, software |
Kojto | 170:19eb464bc2be | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
Kojto | 170:19eb464bc2be | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
Kojto | 170:19eb464bc2be | 13 | * See the License for the specific language governing permissions and |
Kojto | 170:19eb464bc2be | 14 | * limitations under the License. |
Kojto | 170:19eb464bc2be | 15 | */ |
Kojto | 170:19eb464bc2be | 16 | #include "serial_api.h" |
Kojto | 170:19eb464bc2be | 17 | |
Kojto | 170:19eb464bc2be | 18 | #if DEVICE_SERIAL |
Kojto | 170:19eb464bc2be | 19 | |
Kojto | 170:19eb464bc2be | 20 | // math.h required for floating point operations for baud rate calculation |
Kojto | 170:19eb464bc2be | 21 | #include <math.h> |
Kojto | 170:19eb464bc2be | 22 | #include "mbed_assert.h" |
Kojto | 170:19eb464bc2be | 23 | |
Kojto | 170:19eb464bc2be | 24 | #include <string.h> |
Kojto | 170:19eb464bc2be | 25 | |
Kojto | 170:19eb464bc2be | 26 | #include "cmsis.h" |
Kojto | 170:19eb464bc2be | 27 | #include "pinmap.h" |
Kojto | 170:19eb464bc2be | 28 | #include "fsl_usart.h" |
Kojto | 170:19eb464bc2be | 29 | #include "PeripheralPins.h" |
Kojto | 170:19eb464bc2be | 30 | #include "clock_config.h" |
Kojto | 170:19eb464bc2be | 31 | |
Kojto | 170:19eb464bc2be | 32 | static uint32_t serial_irq_ids[FSL_FEATURE_SOC_USART_COUNT] = {0}; |
Kojto | 170:19eb464bc2be | 33 | static uart_irq_handler irq_handler; |
Kojto | 170:19eb464bc2be | 34 | /* Array of UART peripheral base address. */ |
Kojto | 170:19eb464bc2be | 35 | static USART_Type *const uart_addrs[] = USART_BASE_PTRS; |
Kojto | 170:19eb464bc2be | 36 | |
Kojto | 170:19eb464bc2be | 37 | int stdio_uart_inited = 0; |
Kojto | 170:19eb464bc2be | 38 | serial_t stdio_uart; |
Kojto | 170:19eb464bc2be | 39 | |
Kojto | 170:19eb464bc2be | 40 | void serial_init(serial_t *obj, PinName tx, PinName rx) |
Kojto | 170:19eb464bc2be | 41 | { |
Kojto | 170:19eb464bc2be | 42 | uint32_t uart_tx = pinmap_peripheral(tx, PinMap_UART_TX); |
Kojto | 170:19eb464bc2be | 43 | uint32_t uart_rx = pinmap_peripheral(rx, PinMap_UART_RX); |
Kojto | 170:19eb464bc2be | 44 | obj->index = pinmap_merge(uart_tx, uart_rx); |
Kojto | 170:19eb464bc2be | 45 | MBED_ASSERT((int)obj->index != NC); |
Kojto | 170:19eb464bc2be | 46 | |
Kojto | 170:19eb464bc2be | 47 | usart_config_t config; |
Kojto | 170:19eb464bc2be | 48 | |
Kojto | 170:19eb464bc2be | 49 | switch (obj->index) { |
Kojto | 170:19eb464bc2be | 50 | case 0: |
Kojto | 170:19eb464bc2be | 51 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM0); |
Kojto | 170:19eb464bc2be | 52 | RESET_PeripheralReset(kFC0_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 53 | break; |
Kojto | 170:19eb464bc2be | 54 | case 1: |
Kojto | 170:19eb464bc2be | 55 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM1); |
Kojto | 170:19eb464bc2be | 56 | RESET_PeripheralReset(kFC1_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 57 | break; |
Kojto | 170:19eb464bc2be | 58 | case 2: |
Kojto | 170:19eb464bc2be | 59 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM2); |
Kojto | 170:19eb464bc2be | 60 | RESET_PeripheralReset(kFC2_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 61 | break; |
Kojto | 170:19eb464bc2be | 62 | case 3: |
Kojto | 170:19eb464bc2be | 63 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM3); |
Kojto | 170:19eb464bc2be | 64 | RESET_PeripheralReset(kFC3_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 65 | break; |
Kojto | 170:19eb464bc2be | 66 | case 4: |
Kojto | 170:19eb464bc2be | 67 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM4); |
Kojto | 170:19eb464bc2be | 68 | RESET_PeripheralReset(kFC4_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 69 | break; |
Kojto | 170:19eb464bc2be | 70 | case 5: |
Kojto | 170:19eb464bc2be | 71 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM5); |
Kojto | 170:19eb464bc2be | 72 | RESET_PeripheralReset(kFC5_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 73 | break; |
Kojto | 170:19eb464bc2be | 74 | case 6: |
Kojto | 170:19eb464bc2be | 75 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM6); |
Kojto | 170:19eb464bc2be | 76 | RESET_PeripheralReset(kFC6_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 77 | break; |
Kojto | 170:19eb464bc2be | 78 | case 7: |
Kojto | 170:19eb464bc2be | 79 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM7); |
Kojto | 170:19eb464bc2be | 80 | RESET_PeripheralReset(kFC7_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 81 | break; |
Kojto | 170:19eb464bc2be | 82 | #if (FSL_FEATURE_SOC_FLEXCOMM_COUNT > 8U) |
Kojto | 170:19eb464bc2be | 83 | case 8: |
Kojto | 170:19eb464bc2be | 84 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM8); |
Kojto | 170:19eb464bc2be | 85 | RESET_PeripheralReset(kFC8_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 86 | break; |
Kojto | 170:19eb464bc2be | 87 | #endif |
Kojto | 170:19eb464bc2be | 88 | #if (FSL_FEATURE_SOC_FLEXCOMM_COUNT > 9U) |
Kojto | 170:19eb464bc2be | 89 | case 9: |
Kojto | 170:19eb464bc2be | 90 | CLOCK_AttachClk(kFRO12M_to_FLEXCOMM9); |
Kojto | 170:19eb464bc2be | 91 | RESET_PeripheralReset(kFC9_RST_SHIFT_RSTn); |
Kojto | 170:19eb464bc2be | 92 | break; |
Kojto | 170:19eb464bc2be | 93 | #endif |
Kojto | 170:19eb464bc2be | 94 | } |
Kojto | 170:19eb464bc2be | 95 | |
Kojto | 170:19eb464bc2be | 96 | USART_GetDefaultConfig(&config); |
Kojto | 170:19eb464bc2be | 97 | config.baudRate_Bps = 9600; |
Kojto | 170:19eb464bc2be | 98 | config.enableTx = true; |
Kojto | 170:19eb464bc2be | 99 | config.enableRx = true; |
Kojto | 170:19eb464bc2be | 100 | |
Kojto | 170:19eb464bc2be | 101 | USART_Init(uart_addrs[obj->index], &config, 12000000); |
Kojto | 170:19eb464bc2be | 102 | |
Kojto | 170:19eb464bc2be | 103 | pinmap_pinout(tx, PinMap_UART_TX); |
Kojto | 170:19eb464bc2be | 104 | pinmap_pinout(rx, PinMap_UART_RX); |
Kojto | 170:19eb464bc2be | 105 | |
Kojto | 170:19eb464bc2be | 106 | if (tx != NC) { |
Kojto | 170:19eb464bc2be | 107 | pin_mode(tx, PullUp); |
Kojto | 170:19eb464bc2be | 108 | } |
Kojto | 170:19eb464bc2be | 109 | if (rx != NC) { |
Kojto | 170:19eb464bc2be | 110 | pin_mode(rx, PullUp); |
Kojto | 170:19eb464bc2be | 111 | } |
Kojto | 170:19eb464bc2be | 112 | |
Kojto | 170:19eb464bc2be | 113 | if (obj->index == STDIO_UART) { |
Kojto | 170:19eb464bc2be | 114 | stdio_uart_inited = 1; |
Kojto | 170:19eb464bc2be | 115 | memcpy(&stdio_uart, obj, sizeof(serial_t)); |
Kojto | 170:19eb464bc2be | 116 | } |
Kojto | 170:19eb464bc2be | 117 | } |
Kojto | 170:19eb464bc2be | 118 | |
Kojto | 170:19eb464bc2be | 119 | void serial_free(serial_t *obj) |
Kojto | 170:19eb464bc2be | 120 | { |
Kojto | 170:19eb464bc2be | 121 | USART_Deinit(uart_addrs[obj->index]); |
Kojto | 170:19eb464bc2be | 122 | serial_irq_ids[obj->index] = 0; |
Kojto | 170:19eb464bc2be | 123 | } |
Kojto | 170:19eb464bc2be | 124 | |
Kojto | 170:19eb464bc2be | 125 | void serial_baud(serial_t *obj, int baudrate) |
Kojto | 170:19eb464bc2be | 126 | { |
Kojto | 170:19eb464bc2be | 127 | USART_SetBaudRate(uart_addrs[obj->index], (uint32_t)baudrate, 12000000); |
Kojto | 170:19eb464bc2be | 128 | } |
Kojto | 170:19eb464bc2be | 129 | |
Kojto | 170:19eb464bc2be | 130 | void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) |
Kojto | 170:19eb464bc2be | 131 | { |
Kojto | 170:19eb464bc2be | 132 | USART_Type *base = uart_addrs[obj->index]; |
Kojto | 170:19eb464bc2be | 133 | uint8_t temp; |
Kojto | 170:19eb464bc2be | 134 | |
Kojto | 170:19eb464bc2be | 135 | /* Set bit count and parity mode. */ |
Kojto | 170:19eb464bc2be | 136 | temp = base->CFG & ~(USART_CFG_PARITYSEL_MASK | USART_CFG_DATALEN_MASK | USART_CFG_STOPLEN_MASK); |
Kojto | 170:19eb464bc2be | 137 | |
Kojto | 170:19eb464bc2be | 138 | if (parity != ParityNone) |
Kojto | 170:19eb464bc2be | 139 | { |
Kojto | 170:19eb464bc2be | 140 | /* Enable Parity */ |
Kojto | 170:19eb464bc2be | 141 | if (parity == ParityOdd) { |
Kojto | 170:19eb464bc2be | 142 | temp |= USART_CFG_PARITYSEL(3U); |
Kojto | 170:19eb464bc2be | 143 | } else if (parity == ParityEven) { |
Kojto | 170:19eb464bc2be | 144 | temp |= USART_CFG_PARITYSEL(2U); |
Kojto | 170:19eb464bc2be | 145 | } else { |
Kojto | 170:19eb464bc2be | 146 | // Hardware does not support forced parity |
Kojto | 170:19eb464bc2be | 147 | MBED_ASSERT(0); |
Kojto | 170:19eb464bc2be | 148 | } |
Kojto | 170:19eb464bc2be | 149 | } |
Kojto | 170:19eb464bc2be | 150 | |
Kojto | 170:19eb464bc2be | 151 | /* Set stop bits */ |
Kojto | 170:19eb464bc2be | 152 | if (stop_bits == 2) { |
Kojto | 170:19eb464bc2be | 153 | temp |= USART_CFG_STOPLEN(1U); |
Kojto | 170:19eb464bc2be | 154 | } |
Kojto | 170:19eb464bc2be | 155 | |
Kojto | 170:19eb464bc2be | 156 | /* Set Data size */ |
Kojto | 170:19eb464bc2be | 157 | if (data_bits == 8) { |
Kojto | 170:19eb464bc2be | 158 | temp |= USART_CFG_DATALEN(1U); |
Kojto | 170:19eb464bc2be | 159 | } else { |
Kojto | 170:19eb464bc2be | 160 | temp |= USART_CFG_DATALEN(2U); |
Kojto | 170:19eb464bc2be | 161 | } |
Kojto | 170:19eb464bc2be | 162 | |
Kojto | 170:19eb464bc2be | 163 | base->CFG = temp; |
Kojto | 170:19eb464bc2be | 164 | } |
Kojto | 170:19eb464bc2be | 165 | |
Kojto | 170:19eb464bc2be | 166 | /****************************************************************************** |
Kojto | 170:19eb464bc2be | 167 | * INTERRUPTS HANDLING |
Kojto | 170:19eb464bc2be | 168 | ******************************************************************************/ |
Kojto | 170:19eb464bc2be | 169 | static inline void uart_irq(uint32_t transmit_empty, uint32_t receive_full, uint32_t index) |
Kojto | 170:19eb464bc2be | 170 | { |
Kojto | 170:19eb464bc2be | 171 | if (serial_irq_ids[index] != 0) { |
Kojto | 170:19eb464bc2be | 172 | if (transmit_empty) |
Kojto | 170:19eb464bc2be | 173 | irq_handler(serial_irq_ids[index], TxIrq); |
Kojto | 170:19eb464bc2be | 174 | |
Kojto | 170:19eb464bc2be | 175 | if (receive_full) |
Kojto | 170:19eb464bc2be | 176 | irq_handler(serial_irq_ids[index], RxIrq); |
Kojto | 170:19eb464bc2be | 177 | } |
Kojto | 170:19eb464bc2be | 178 | } |
Kojto | 170:19eb464bc2be | 179 | |
Kojto | 170:19eb464bc2be | 180 | void uart0_irq() |
Kojto | 170:19eb464bc2be | 181 | { |
Kojto | 170:19eb464bc2be | 182 | uint32_t status_flags = USART0->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 183 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 0); |
Kojto | 170:19eb464bc2be | 184 | } |
Kojto | 170:19eb464bc2be | 185 | |
Kojto | 170:19eb464bc2be | 186 | void uart1_irq() |
Kojto | 170:19eb464bc2be | 187 | { |
Kojto | 170:19eb464bc2be | 188 | uint32_t status_flags = USART1->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 189 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 1); |
Kojto | 170:19eb464bc2be | 190 | } |
Kojto | 170:19eb464bc2be | 191 | |
Kojto | 170:19eb464bc2be | 192 | void uart2_irq() |
Kojto | 170:19eb464bc2be | 193 | { |
Kojto | 170:19eb464bc2be | 194 | uint32_t status_flags = USART2->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 195 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 2); |
Kojto | 170:19eb464bc2be | 196 | } |
Kojto | 170:19eb464bc2be | 197 | |
Kojto | 170:19eb464bc2be | 198 | void uart3_irq() |
Kojto | 170:19eb464bc2be | 199 | { |
Kojto | 170:19eb464bc2be | 200 | uint32_t status_flags = USART3->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 201 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 3); |
Kojto | 170:19eb464bc2be | 202 | } |
Kojto | 170:19eb464bc2be | 203 | |
Kojto | 170:19eb464bc2be | 204 | void uart4_irq() |
Kojto | 170:19eb464bc2be | 205 | { |
Kojto | 170:19eb464bc2be | 206 | uint32_t status_flags = USART4->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 207 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 4); |
Kojto | 170:19eb464bc2be | 208 | } |
Kojto | 170:19eb464bc2be | 209 | |
Kojto | 170:19eb464bc2be | 210 | void uart5_irq() |
Kojto | 170:19eb464bc2be | 211 | { |
Kojto | 170:19eb464bc2be | 212 | uint32_t status_flags = USART5->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 213 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 5); |
Kojto | 170:19eb464bc2be | 214 | } |
Kojto | 170:19eb464bc2be | 215 | |
Kojto | 170:19eb464bc2be | 216 | void uart6_irq() |
Kojto | 170:19eb464bc2be | 217 | { |
Kojto | 170:19eb464bc2be | 218 | uint32_t status_flags = USART6->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 219 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 6); |
Kojto | 170:19eb464bc2be | 220 | } |
Kojto | 170:19eb464bc2be | 221 | |
Kojto | 170:19eb464bc2be | 222 | void uart7_irq() |
Kojto | 170:19eb464bc2be | 223 | { |
Kojto | 170:19eb464bc2be | 224 | uint32_t status_flags = USART7->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 225 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 7); |
Kojto | 170:19eb464bc2be | 226 | } |
Kojto | 170:19eb464bc2be | 227 | |
Kojto | 170:19eb464bc2be | 228 | #if (FSL_FEATURE_SOC_FLEXCOMM_COUNT > 8U) |
Kojto | 170:19eb464bc2be | 229 | void uart8_irq() |
Kojto | 170:19eb464bc2be | 230 | { |
Kojto | 170:19eb464bc2be | 231 | uint32_t status_flags = USART8->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 232 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 8); |
Kojto | 170:19eb464bc2be | 233 | } |
Kojto | 170:19eb464bc2be | 234 | #endif |
Kojto | 170:19eb464bc2be | 235 | |
Kojto | 170:19eb464bc2be | 236 | #if (FSL_FEATURE_SOC_FLEXCOMM_COUNT > 9U) |
Kojto | 170:19eb464bc2be | 237 | void uart9_irq() |
Kojto | 170:19eb464bc2be | 238 | { |
Kojto | 170:19eb464bc2be | 239 | uint32_t status_flags = USART9->FIFOSTAT; |
Kojto | 170:19eb464bc2be | 240 | uart_irq((status_flags & kUSART_TxFifoEmptyFlag), (status_flags & kUSART_RxFifoFullFlag), 9); |
Kojto | 170:19eb464bc2be | 241 | } |
Kojto | 170:19eb464bc2be | 242 | #endif |
Kojto | 170:19eb464bc2be | 243 | |
Kojto | 170:19eb464bc2be | 244 | void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) |
Kojto | 170:19eb464bc2be | 245 | { |
Kojto | 170:19eb464bc2be | 246 | irq_handler = handler; |
Kojto | 170:19eb464bc2be | 247 | serial_irq_ids[obj->index] = id; |
Kojto | 170:19eb464bc2be | 248 | } |
Kojto | 170:19eb464bc2be | 249 | |
Kojto | 170:19eb464bc2be | 250 | void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) |
Kojto | 170:19eb464bc2be | 251 | { |
Kojto | 170:19eb464bc2be | 252 | IRQn_Type uart_irqs[] = USART_IRQS; |
Kojto | 170:19eb464bc2be | 253 | uint32_t vector = 0; |
Kojto | 170:19eb464bc2be | 254 | |
Kojto | 170:19eb464bc2be | 255 | switch (obj->index) { |
Kojto | 170:19eb464bc2be | 256 | case 0: |
Kojto | 170:19eb464bc2be | 257 | vector = (uint32_t)&uart0_irq; |
Kojto | 170:19eb464bc2be | 258 | break; |
Kojto | 170:19eb464bc2be | 259 | case 1: |
Kojto | 170:19eb464bc2be | 260 | vector = (uint32_t)&uart1_irq; |
Kojto | 170:19eb464bc2be | 261 | break; |
Kojto | 170:19eb464bc2be | 262 | case 2: |
Kojto | 170:19eb464bc2be | 263 | vector = (uint32_t)&uart2_irq; |
Kojto | 170:19eb464bc2be | 264 | break; |
Kojto | 170:19eb464bc2be | 265 | case 3: |
Kojto | 170:19eb464bc2be | 266 | vector = (uint32_t)&uart3_irq; |
Kojto | 170:19eb464bc2be | 267 | break; |
Kojto | 170:19eb464bc2be | 268 | case 4: |
Kojto | 170:19eb464bc2be | 269 | vector = (uint32_t)&uart4_irq; |
Kojto | 170:19eb464bc2be | 270 | break; |
Kojto | 170:19eb464bc2be | 271 | case 5: |
Kojto | 170:19eb464bc2be | 272 | vector = (uint32_t)&uart5_irq; |
Kojto | 170:19eb464bc2be | 273 | break; |
Kojto | 170:19eb464bc2be | 274 | case 6: |
Kojto | 170:19eb464bc2be | 275 | vector = (uint32_t)&uart6_irq; |
Kojto | 170:19eb464bc2be | 276 | break; |
Kojto | 170:19eb464bc2be | 277 | case 7: |
Kojto | 170:19eb464bc2be | 278 | vector = (uint32_t)&uart7_irq; |
Kojto | 170:19eb464bc2be | 279 | break; |
Kojto | 170:19eb464bc2be | 280 | #if (FSL_FEATURE_SOC_FLEXCOMM_COUNT > 8U) |
Kojto | 170:19eb464bc2be | 281 | case 8: |
Kojto | 170:19eb464bc2be | 282 | vector = (uint32_t)&uart8_irq; |
Kojto | 170:19eb464bc2be | 283 | break; |
Kojto | 170:19eb464bc2be | 284 | #endif |
Kojto | 170:19eb464bc2be | 285 | #if (FSL_FEATURE_SOC_FLEXCOMM_COUNT > 9U) |
Kojto | 170:19eb464bc2be | 286 | case 9: |
Kojto | 170:19eb464bc2be | 287 | vector = (uint32_t)&uart9_irq; |
Kojto | 170:19eb464bc2be | 288 | break; |
Kojto | 170:19eb464bc2be | 289 | #endif |
Kojto | 170:19eb464bc2be | 290 | default: |
Kojto | 170:19eb464bc2be | 291 | break; |
Kojto | 170:19eb464bc2be | 292 | } |
Kojto | 170:19eb464bc2be | 293 | |
Kojto | 170:19eb464bc2be | 294 | if (enable) { |
Kojto | 170:19eb464bc2be | 295 | switch (irq) { |
Kojto | 170:19eb464bc2be | 296 | case RxIrq: |
Kojto | 170:19eb464bc2be | 297 | USART_EnableInterrupts(uart_addrs[obj->index], kUSART_RxLevelInterruptEnable); |
Kojto | 170:19eb464bc2be | 298 | break; |
Kojto | 170:19eb464bc2be | 299 | case TxIrq: |
Kojto | 170:19eb464bc2be | 300 | USART_EnableInterrupts(uart_addrs[obj->index], kUSART_TxLevelInterruptEnable); |
Kojto | 170:19eb464bc2be | 301 | break; |
Kojto | 170:19eb464bc2be | 302 | default: |
Kojto | 170:19eb464bc2be | 303 | break; |
Kojto | 170:19eb464bc2be | 304 | } |
Kojto | 170:19eb464bc2be | 305 | NVIC_SetVector(uart_irqs[obj->index], vector); |
Kojto | 170:19eb464bc2be | 306 | NVIC_EnableIRQ(uart_irqs[obj->index]); |
Kojto | 170:19eb464bc2be | 307 | |
Kojto | 170:19eb464bc2be | 308 | } else { // disable |
Kojto | 170:19eb464bc2be | 309 | int all_disabled = 0; |
Kojto | 170:19eb464bc2be | 310 | SerialIrq other_irq = (irq == RxIrq) ? (TxIrq) : (RxIrq); |
Kojto | 170:19eb464bc2be | 311 | switch (irq) { |
Kojto | 170:19eb464bc2be | 312 | case RxIrq: |
Kojto | 170:19eb464bc2be | 313 | USART_DisableInterrupts(uart_addrs[obj->index], kUSART_RxLevelInterruptEnable); |
Kojto | 170:19eb464bc2be | 314 | break; |
Kojto | 170:19eb464bc2be | 315 | case TxIrq: |
Kojto | 170:19eb464bc2be | 316 | USART_DisableInterrupts(uart_addrs[obj->index], kUSART_TxLevelInterruptEnable); |
Kojto | 170:19eb464bc2be | 317 | break; |
Kojto | 170:19eb464bc2be | 318 | default: |
Kojto | 170:19eb464bc2be | 319 | break; |
Kojto | 170:19eb464bc2be | 320 | } |
Kojto | 170:19eb464bc2be | 321 | switch (other_irq) { |
Kojto | 170:19eb464bc2be | 322 | case RxIrq: |
Kojto | 170:19eb464bc2be | 323 | all_disabled = (((uart_addrs[obj->index]->FIFOINTENSET) & kUSART_RxLevelInterruptEnable) == 0); |
Kojto | 170:19eb464bc2be | 324 | break; |
Kojto | 170:19eb464bc2be | 325 | case TxIrq: |
Kojto | 170:19eb464bc2be | 326 | all_disabled = (((uart_addrs[obj->index]->FIFOINTENSET) & kUSART_TxLevelInterruptEnable)== 0); |
Kojto | 170:19eb464bc2be | 327 | break; |
Kojto | 170:19eb464bc2be | 328 | default: |
Kojto | 170:19eb464bc2be | 329 | break; |
Kojto | 170:19eb464bc2be | 330 | } |
Kojto | 170:19eb464bc2be | 331 | if (all_disabled) |
Kojto | 170:19eb464bc2be | 332 | NVIC_DisableIRQ(uart_irqs[obj->index]); |
Kojto | 170:19eb464bc2be | 333 | } |
Kojto | 170:19eb464bc2be | 334 | } |
Kojto | 170:19eb464bc2be | 335 | |
Kojto | 170:19eb464bc2be | 336 | int serial_getc(serial_t *obj) |
Kojto | 170:19eb464bc2be | 337 | { |
Kojto | 170:19eb464bc2be | 338 | while (!serial_readable(obj)); |
Kojto | 170:19eb464bc2be | 339 | uint8_t data; |
Kojto | 170:19eb464bc2be | 340 | data = USART_ReadByte(uart_addrs[obj->index]); |
Kojto | 170:19eb464bc2be | 341 | |
Kojto | 170:19eb464bc2be | 342 | return data; |
Kojto | 170:19eb464bc2be | 343 | } |
Kojto | 170:19eb464bc2be | 344 | |
Kojto | 170:19eb464bc2be | 345 | void serial_putc(serial_t *obj, int c) |
Kojto | 170:19eb464bc2be | 346 | { |
Kojto | 170:19eb464bc2be | 347 | while (!serial_writable(obj)); |
Kojto | 170:19eb464bc2be | 348 | USART_WriteByte(uart_addrs[obj->index], (uint8_t)c); |
Kojto | 170:19eb464bc2be | 349 | } |
Kojto | 170:19eb464bc2be | 350 | |
Kojto | 170:19eb464bc2be | 351 | int serial_readable(serial_t *obj) |
Kojto | 170:19eb464bc2be | 352 | { |
Kojto | 170:19eb464bc2be | 353 | uint32_t status_flags = USART_GetStatusFlags(uart_addrs[obj->index]); |
Kojto | 170:19eb464bc2be | 354 | |
Kojto | 170:19eb464bc2be | 355 | return (status_flags & kUSART_RxFifoNotEmptyFlag); |
Kojto | 170:19eb464bc2be | 356 | } |
Kojto | 170:19eb464bc2be | 357 | |
Kojto | 170:19eb464bc2be | 358 | int serial_writable(serial_t *obj) |
Kojto | 170:19eb464bc2be | 359 | { |
Kojto | 170:19eb464bc2be | 360 | uint32_t status_flags = USART_GetStatusFlags(uart_addrs[obj->index]); |
Kojto | 170:19eb464bc2be | 361 | |
Kojto | 170:19eb464bc2be | 362 | return (status_flags & kUSART_TxFifoNotFullFlag); |
Kojto | 170:19eb464bc2be | 363 | } |
Kojto | 170:19eb464bc2be | 364 | |
Kojto | 170:19eb464bc2be | 365 | void serial_clear(serial_t *obj) |
Kojto | 170:19eb464bc2be | 366 | { |
Kojto | 170:19eb464bc2be | 367 | } |
Kojto | 170:19eb464bc2be | 368 | |
Kojto | 170:19eb464bc2be | 369 | void serial_pinout_tx(PinName tx) |
Kojto | 170:19eb464bc2be | 370 | { |
Kojto | 170:19eb464bc2be | 371 | pinmap_pinout(tx, PinMap_UART_TX); |
Kojto | 170:19eb464bc2be | 372 | } |
Kojto | 170:19eb464bc2be | 373 | |
Kojto | 170:19eb464bc2be | 374 | void serial_break_set(serial_t *obj) |
Kojto | 170:19eb464bc2be | 375 | { |
Kojto | 170:19eb464bc2be | 376 | uart_addrs[obj->index]->CTL |= USART_CTL_TXBRKEN_MASK; |
Kojto | 170:19eb464bc2be | 377 | } |
Kojto | 170:19eb464bc2be | 378 | |
Kojto | 170:19eb464bc2be | 379 | void serial_break_clear(serial_t *obj) |
Kojto | 170:19eb464bc2be | 380 | { |
Kojto | 170:19eb464bc2be | 381 | uart_addrs[obj->index]->CTL &= ~USART_CTL_TXBRKEN_MASK; |
Kojto | 170:19eb464bc2be | 382 | } |
Kojto | 170:19eb464bc2be | 383 | |
Kojto | 170:19eb464bc2be | 384 | #endif |