mbed library sources. Supersedes mbed-src.
Fork of mbed by
targets/hal/TARGET_STM/TARGET_STM32L0/serial_api.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)
- Committer:
- <>
- Date:
- Fri Sep 02 15:07:44 2016 +0100
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 114:fe4fe5cfc3a3
This updates the lib to the mbed lib v125
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /* mbed Microcontroller Library |
<> | 144:ef7eb2e8f9f7 | 2 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 3 | * Copyright (c) 2015, STMicroelectronics |
<> | 144:ef7eb2e8f9f7 | 4 | * All rights reserved. |
<> | 144:ef7eb2e8f9f7 | 5 | * |
<> | 144:ef7eb2e8f9f7 | 6 | * Redistribution and use in source and binary forms, with or without |
<> | 144:ef7eb2e8f9f7 | 7 | * modification, are permitted provided that the following conditions are met: |
<> | 144:ef7eb2e8f9f7 | 8 | * |
<> | 144:ef7eb2e8f9f7 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 10 | * this list of conditions and the following disclaimer. |
<> | 144:ef7eb2e8f9f7 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 12 | * this list of conditions and the following disclaimer in the documentation |
<> | 144:ef7eb2e8f9f7 | 13 | * and/or other materials provided with the distribution. |
<> | 144:ef7eb2e8f9f7 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
<> | 144:ef7eb2e8f9f7 | 15 | * may be used to endorse or promote products derived from this software |
<> | 144:ef7eb2e8f9f7 | 16 | * without specific prior written permission. |
<> | 144:ef7eb2e8f9f7 | 17 | * |
<> | 144:ef7eb2e8f9f7 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
<> | 144:ef7eb2e8f9f7 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
<> | 144:ef7eb2e8f9f7 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
<> | 144:ef7eb2e8f9f7 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
<> | 144:ef7eb2e8f9f7 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
<> | 144:ef7eb2e8f9f7 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
<> | 144:ef7eb2e8f9f7 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
<> | 144:ef7eb2e8f9f7 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
<> | 144:ef7eb2e8f9f7 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
<> | 144:ef7eb2e8f9f7 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
<> | 144:ef7eb2e8f9f7 | 28 | ******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 29 | */ |
<> | 144:ef7eb2e8f9f7 | 30 | #include "mbed_assert.h" |
<> | 144:ef7eb2e8f9f7 | 31 | #include "serial_api.h" |
<> | 144:ef7eb2e8f9f7 | 32 | |
<> | 144:ef7eb2e8f9f7 | 33 | #if DEVICE_SERIAL |
<> | 144:ef7eb2e8f9f7 | 34 | |
<> | 144:ef7eb2e8f9f7 | 35 | #include "cmsis.h" |
<> | 144:ef7eb2e8f9f7 | 36 | #include "pinmap.h" |
<> | 144:ef7eb2e8f9f7 | 37 | #include "mbed_error.h" |
<> | 144:ef7eb2e8f9f7 | 38 | #include <string.h> |
<> | 144:ef7eb2e8f9f7 | 39 | #include "PeripheralPins.h" |
<> | 144:ef7eb2e8f9f7 | 40 | |
<> | 144:ef7eb2e8f9f7 | 41 | #define UART_NUM (5) |
<> | 144:ef7eb2e8f9f7 | 42 | |
<> | 144:ef7eb2e8f9f7 | 43 | static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0}; |
<> | 144:ef7eb2e8f9f7 | 44 | |
<> | 144:ef7eb2e8f9f7 | 45 | static uart_irq_handler irq_handler; |
<> | 144:ef7eb2e8f9f7 | 46 | |
<> | 144:ef7eb2e8f9f7 | 47 | UART_HandleTypeDef UartHandle; |
<> | 144:ef7eb2e8f9f7 | 48 | |
<> | 144:ef7eb2e8f9f7 | 49 | int stdio_uart_inited = 0; |
<> | 144:ef7eb2e8f9f7 | 50 | serial_t stdio_uart; |
<> | 144:ef7eb2e8f9f7 | 51 | |
<> | 144:ef7eb2e8f9f7 | 52 | static void init_uart(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 53 | { |
<> | 144:ef7eb2e8f9f7 | 54 | UartHandle.Instance = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 55 | |
<> | 144:ef7eb2e8f9f7 | 56 | UartHandle.Init.BaudRate = obj->baudrate; |
<> | 144:ef7eb2e8f9f7 | 57 | UartHandle.Init.WordLength = obj->databits; |
<> | 144:ef7eb2e8f9f7 | 58 | UartHandle.Init.StopBits = obj->stopbits; |
<> | 144:ef7eb2e8f9f7 | 59 | UartHandle.Init.Parity = obj->parity; |
<> | 144:ef7eb2e8f9f7 | 60 | UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE; |
<> | 144:ef7eb2e8f9f7 | 61 | UartHandle.Init.OverSampling = UART_OVERSAMPLING_16; |
<> | 144:ef7eb2e8f9f7 | 62 | UartHandle.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_ENABLE; |
<> | 144:ef7eb2e8f9f7 | 63 | |
<> | 144:ef7eb2e8f9f7 | 64 | if (obj->pin_rx == NC) { |
<> | 144:ef7eb2e8f9f7 | 65 | UartHandle.Init.Mode = UART_MODE_TX; |
<> | 144:ef7eb2e8f9f7 | 66 | } else if (obj->pin_tx == NC) { |
<> | 144:ef7eb2e8f9f7 | 67 | UartHandle.Init.Mode = UART_MODE_RX; |
<> | 144:ef7eb2e8f9f7 | 68 | } else { |
<> | 144:ef7eb2e8f9f7 | 69 | UartHandle.Init.Mode = UART_MODE_TX_RX; |
<> | 144:ef7eb2e8f9f7 | 70 | } |
<> | 144:ef7eb2e8f9f7 | 71 | |
<> | 144:ef7eb2e8f9f7 | 72 | // Disable the reception overrun detection |
<> | 144:ef7eb2e8f9f7 | 73 | UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT; |
<> | 144:ef7eb2e8f9f7 | 74 | UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE; |
<> | 144:ef7eb2e8f9f7 | 75 | |
<> | 144:ef7eb2e8f9f7 | 76 | if (HAL_UART_Init(&UartHandle) != HAL_OK) { |
<> | 144:ef7eb2e8f9f7 | 77 | error("Cannot initialize UART"); |
<> | 144:ef7eb2e8f9f7 | 78 | } |
<> | 144:ef7eb2e8f9f7 | 79 | } |
<> | 144:ef7eb2e8f9f7 | 80 | |
<> | 144:ef7eb2e8f9f7 | 81 | void serial_init(serial_t *obj, PinName tx, PinName rx) |
<> | 144:ef7eb2e8f9f7 | 82 | { |
<> | 144:ef7eb2e8f9f7 | 83 | // Determine the UART to use (UART_1, UART_2, ...) |
<> | 144:ef7eb2e8f9f7 | 84 | UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX); |
<> | 144:ef7eb2e8f9f7 | 85 | UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX); |
<> | 144:ef7eb2e8f9f7 | 86 | |
<> | 144:ef7eb2e8f9f7 | 87 | // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object |
<> | 144:ef7eb2e8f9f7 | 88 | obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx); |
<> | 144:ef7eb2e8f9f7 | 89 | MBED_ASSERT(obj->uart != (UARTName)NC); |
<> | 144:ef7eb2e8f9f7 | 90 | |
<> | 144:ef7eb2e8f9f7 | 91 | // Enable UART clock |
<> | 144:ef7eb2e8f9f7 | 92 | #if defined(USART1_BASE) |
<> | 144:ef7eb2e8f9f7 | 93 | if (obj->uart == UART_1) { |
<> | 144:ef7eb2e8f9f7 | 94 | __HAL_RCC_USART1_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 95 | __HAL_RCC_USART1_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 96 | __HAL_RCC_USART1_CLK_ENABLE(); |
<> | 144:ef7eb2e8f9f7 | 97 | obj->index = 0; |
<> | 144:ef7eb2e8f9f7 | 98 | } |
<> | 144:ef7eb2e8f9f7 | 99 | #endif |
<> | 144:ef7eb2e8f9f7 | 100 | |
<> | 144:ef7eb2e8f9f7 | 101 | if (obj->uart == UART_2) { |
<> | 144:ef7eb2e8f9f7 | 102 | __HAL_RCC_USART2_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 103 | __HAL_RCC_USART2_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 104 | __HAL_RCC_USART2_CLK_ENABLE(); |
<> | 144:ef7eb2e8f9f7 | 105 | obj->index = 1; |
<> | 144:ef7eb2e8f9f7 | 106 | } |
<> | 144:ef7eb2e8f9f7 | 107 | |
<> | 144:ef7eb2e8f9f7 | 108 | if (obj->uart == LPUART_1) { |
<> | 144:ef7eb2e8f9f7 | 109 | __HAL_RCC_LPUART1_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 110 | __HAL_RCC_LPUART1_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 111 | __HAL_RCC_LPUART1_CLK_ENABLE(); |
<> | 144:ef7eb2e8f9f7 | 112 | obj->index = 2; |
<> | 144:ef7eb2e8f9f7 | 113 | } |
<> | 144:ef7eb2e8f9f7 | 114 | |
<> | 144:ef7eb2e8f9f7 | 115 | #if defined(USART4_BASE) |
<> | 144:ef7eb2e8f9f7 | 116 | if (obj->uart == UART_4) { |
<> | 144:ef7eb2e8f9f7 | 117 | __HAL_RCC_USART4_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 118 | __HAL_RCC_USART4_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 119 | __HAL_RCC_USART4_CLK_ENABLE(); |
<> | 144:ef7eb2e8f9f7 | 120 | obj->index = 3; |
<> | 144:ef7eb2e8f9f7 | 121 | } |
<> | 144:ef7eb2e8f9f7 | 122 | #endif |
<> | 144:ef7eb2e8f9f7 | 123 | |
<> | 144:ef7eb2e8f9f7 | 124 | #if defined(USART5_BASE) |
<> | 144:ef7eb2e8f9f7 | 125 | if (obj->uart == UART_5) { |
<> | 144:ef7eb2e8f9f7 | 126 | __HAL_RCC_USART5_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 127 | __HAL_RCC_USART5_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 128 | __HAL_RCC_USART5_CLK_ENABLE(); |
<> | 144:ef7eb2e8f9f7 | 129 | obj->index = 4; |
<> | 144:ef7eb2e8f9f7 | 130 | } |
<> | 144:ef7eb2e8f9f7 | 131 | #endif |
<> | 144:ef7eb2e8f9f7 | 132 | |
<> | 144:ef7eb2e8f9f7 | 133 | // Configure the UART pins |
<> | 144:ef7eb2e8f9f7 | 134 | pinmap_pinout(tx, PinMap_UART_TX); |
<> | 144:ef7eb2e8f9f7 | 135 | pinmap_pinout(rx, PinMap_UART_RX); |
<> | 144:ef7eb2e8f9f7 | 136 | if (tx != NC) { |
<> | 144:ef7eb2e8f9f7 | 137 | pin_mode(tx, PullUp); |
<> | 144:ef7eb2e8f9f7 | 138 | } |
<> | 144:ef7eb2e8f9f7 | 139 | if (rx != NC) { |
<> | 144:ef7eb2e8f9f7 | 140 | pin_mode(rx, PullUp); |
<> | 144:ef7eb2e8f9f7 | 141 | } |
<> | 144:ef7eb2e8f9f7 | 142 | |
<> | 144:ef7eb2e8f9f7 | 143 | // Configure UART |
<> | 144:ef7eb2e8f9f7 | 144 | obj->baudrate = 9600; |
<> | 144:ef7eb2e8f9f7 | 145 | obj->databits = UART_WORDLENGTH_8B; |
<> | 144:ef7eb2e8f9f7 | 146 | obj->stopbits = UART_STOPBITS_1; |
<> | 144:ef7eb2e8f9f7 | 147 | obj->parity = UART_PARITY_NONE; |
<> | 144:ef7eb2e8f9f7 | 148 | obj->pin_tx = tx; |
<> | 144:ef7eb2e8f9f7 | 149 | obj->pin_rx = rx; |
<> | 144:ef7eb2e8f9f7 | 150 | |
<> | 144:ef7eb2e8f9f7 | 151 | init_uart(obj); |
<> | 144:ef7eb2e8f9f7 | 152 | |
<> | 144:ef7eb2e8f9f7 | 153 | // For stdio management |
<> | 144:ef7eb2e8f9f7 | 154 | if (obj->uart == STDIO_UART) { |
<> | 144:ef7eb2e8f9f7 | 155 | stdio_uart_inited = 1; |
<> | 144:ef7eb2e8f9f7 | 156 | memcpy(&stdio_uart, obj, sizeof(serial_t)); |
<> | 144:ef7eb2e8f9f7 | 157 | } |
<> | 144:ef7eb2e8f9f7 | 158 | } |
<> | 144:ef7eb2e8f9f7 | 159 | |
<> | 144:ef7eb2e8f9f7 | 160 | void serial_free(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 161 | { |
<> | 144:ef7eb2e8f9f7 | 162 | // Reset UART and disable clock |
<> | 144:ef7eb2e8f9f7 | 163 | #if defined(USART1_BASE) |
<> | 144:ef7eb2e8f9f7 | 164 | if (obj->uart == UART_1) { |
<> | 144:ef7eb2e8f9f7 | 165 | __HAL_RCC_USART1_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 166 | __HAL_RCC_USART1_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 167 | __HAL_RCC_USART1_CLK_DISABLE(); |
<> | 144:ef7eb2e8f9f7 | 168 | } |
<> | 144:ef7eb2e8f9f7 | 169 | #endif |
<> | 144:ef7eb2e8f9f7 | 170 | |
<> | 144:ef7eb2e8f9f7 | 171 | if (obj->uart == UART_2) { |
<> | 144:ef7eb2e8f9f7 | 172 | __HAL_RCC_USART2_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 173 | __HAL_RCC_USART2_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 174 | __HAL_RCC_USART2_CLK_DISABLE(); |
<> | 144:ef7eb2e8f9f7 | 175 | } |
<> | 144:ef7eb2e8f9f7 | 176 | |
<> | 144:ef7eb2e8f9f7 | 177 | if (obj->uart == LPUART_1) { |
<> | 144:ef7eb2e8f9f7 | 178 | __HAL_RCC_LPUART1_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 179 | __HAL_RCC_LPUART1_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 180 | __HAL_RCC_LPUART1_CLK_DISABLE(); |
<> | 144:ef7eb2e8f9f7 | 181 | } |
<> | 144:ef7eb2e8f9f7 | 182 | |
<> | 144:ef7eb2e8f9f7 | 183 | #if defined(USART4_BASE) |
<> | 144:ef7eb2e8f9f7 | 184 | if (obj->uart == UART_4) { |
<> | 144:ef7eb2e8f9f7 | 185 | __HAL_RCC_USART4_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 186 | __HAL_RCC_USART4_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 187 | __HAL_RCC_USART4_CLK_DISABLE(); |
<> | 144:ef7eb2e8f9f7 | 188 | } |
<> | 144:ef7eb2e8f9f7 | 189 | #endif |
<> | 144:ef7eb2e8f9f7 | 190 | |
<> | 144:ef7eb2e8f9f7 | 191 | #if defined(USART5_BASE) |
<> | 144:ef7eb2e8f9f7 | 192 | if (obj->uart == UART_5) { |
<> | 144:ef7eb2e8f9f7 | 193 | __HAL_RCC_USART5_FORCE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 194 | __HAL_RCC_USART5_RELEASE_RESET(); |
<> | 144:ef7eb2e8f9f7 | 195 | __HAL_RCC_USART5_CLK_DISABLE(); |
<> | 144:ef7eb2e8f9f7 | 196 | } |
<> | 144:ef7eb2e8f9f7 | 197 | #endif |
<> | 144:ef7eb2e8f9f7 | 198 | |
<> | 144:ef7eb2e8f9f7 | 199 | // Configure GPIOs |
<> | 144:ef7eb2e8f9f7 | 200 | pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
<> | 144:ef7eb2e8f9f7 | 201 | pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
<> | 144:ef7eb2e8f9f7 | 202 | |
<> | 144:ef7eb2e8f9f7 | 203 | serial_irq_ids[obj->index] = 0; |
<> | 144:ef7eb2e8f9f7 | 204 | } |
<> | 144:ef7eb2e8f9f7 | 205 | |
<> | 144:ef7eb2e8f9f7 | 206 | void serial_baud(serial_t *obj, int baudrate) |
<> | 144:ef7eb2e8f9f7 | 207 | { |
<> | 144:ef7eb2e8f9f7 | 208 | obj->baudrate = baudrate; |
<> | 144:ef7eb2e8f9f7 | 209 | init_uart(obj); |
<> | 144:ef7eb2e8f9f7 | 210 | } |
<> | 144:ef7eb2e8f9f7 | 211 | |
<> | 144:ef7eb2e8f9f7 | 212 | void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) |
<> | 144:ef7eb2e8f9f7 | 213 | { |
<> | 144:ef7eb2e8f9f7 | 214 | if (data_bits == 9) { |
<> | 144:ef7eb2e8f9f7 | 215 | obj->databits = UART_WORDLENGTH_9B; |
<> | 144:ef7eb2e8f9f7 | 216 | } else { |
<> | 144:ef7eb2e8f9f7 | 217 | obj->databits = UART_WORDLENGTH_8B; |
<> | 144:ef7eb2e8f9f7 | 218 | } |
<> | 144:ef7eb2e8f9f7 | 219 | |
<> | 144:ef7eb2e8f9f7 | 220 | switch (parity) { |
<> | 144:ef7eb2e8f9f7 | 221 | case ParityOdd: |
<> | 144:ef7eb2e8f9f7 | 222 | case ParityForced0: |
<> | 144:ef7eb2e8f9f7 | 223 | obj->parity = UART_PARITY_ODD; |
<> | 144:ef7eb2e8f9f7 | 224 | break; |
<> | 144:ef7eb2e8f9f7 | 225 | case ParityEven: |
<> | 144:ef7eb2e8f9f7 | 226 | case ParityForced1: |
<> | 144:ef7eb2e8f9f7 | 227 | obj->parity = UART_PARITY_EVEN; |
<> | 144:ef7eb2e8f9f7 | 228 | break; |
<> | 144:ef7eb2e8f9f7 | 229 | default: // ParityNone |
<> | 144:ef7eb2e8f9f7 | 230 | obj->parity = UART_PARITY_NONE; |
<> | 144:ef7eb2e8f9f7 | 231 | break; |
<> | 144:ef7eb2e8f9f7 | 232 | } |
<> | 144:ef7eb2e8f9f7 | 233 | |
<> | 144:ef7eb2e8f9f7 | 234 | if (stop_bits == 2) { |
<> | 144:ef7eb2e8f9f7 | 235 | obj->stopbits = UART_STOPBITS_2; |
<> | 144:ef7eb2e8f9f7 | 236 | } else { |
<> | 144:ef7eb2e8f9f7 | 237 | obj->stopbits = UART_STOPBITS_1; |
<> | 144:ef7eb2e8f9f7 | 238 | } |
<> | 144:ef7eb2e8f9f7 | 239 | |
<> | 144:ef7eb2e8f9f7 | 240 | init_uart(obj); |
<> | 144:ef7eb2e8f9f7 | 241 | } |
<> | 144:ef7eb2e8f9f7 | 242 | |
<> | 144:ef7eb2e8f9f7 | 243 | /****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 244 | * INTERRUPTS HANDLING |
<> | 144:ef7eb2e8f9f7 | 245 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 246 | |
<> | 144:ef7eb2e8f9f7 | 247 | static void uart_irq(UARTName name, int id) |
<> | 144:ef7eb2e8f9f7 | 248 | { |
<> | 144:ef7eb2e8f9f7 | 249 | UartHandle.Instance = (USART_TypeDef *)name; |
<> | 144:ef7eb2e8f9f7 | 250 | if (serial_irq_ids[id] != 0) { |
<> | 144:ef7eb2e8f9f7 | 251 | if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) { |
<> | 144:ef7eb2e8f9f7 | 252 | irq_handler(serial_irq_ids[id], TxIrq); |
<> | 144:ef7eb2e8f9f7 | 253 | __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF); |
<> | 144:ef7eb2e8f9f7 | 254 | } |
<> | 144:ef7eb2e8f9f7 | 255 | if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) { |
<> | 144:ef7eb2e8f9f7 | 256 | irq_handler(serial_irq_ids[id], RxIrq); |
<> | 144:ef7eb2e8f9f7 | 257 | volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit |
<> | 144:ef7eb2e8f9f7 | 258 | } |
<> | 144:ef7eb2e8f9f7 | 259 | } |
<> | 144:ef7eb2e8f9f7 | 260 | } |
<> | 144:ef7eb2e8f9f7 | 261 | |
<> | 144:ef7eb2e8f9f7 | 262 | #if defined(USART1_BASE) |
<> | 144:ef7eb2e8f9f7 | 263 | static void uart1_irq(void) |
<> | 144:ef7eb2e8f9f7 | 264 | { |
<> | 144:ef7eb2e8f9f7 | 265 | uart_irq(UART_1, 0); |
<> | 144:ef7eb2e8f9f7 | 266 | } |
<> | 144:ef7eb2e8f9f7 | 267 | #endif |
<> | 144:ef7eb2e8f9f7 | 268 | |
<> | 144:ef7eb2e8f9f7 | 269 | static void uart2_irq(void) |
<> | 144:ef7eb2e8f9f7 | 270 | { |
<> | 144:ef7eb2e8f9f7 | 271 | uart_irq(UART_2, 1); |
<> | 144:ef7eb2e8f9f7 | 272 | } |
<> | 144:ef7eb2e8f9f7 | 273 | |
<> | 144:ef7eb2e8f9f7 | 274 | static void lpuart1_irq(void) |
<> | 144:ef7eb2e8f9f7 | 275 | { |
<> | 144:ef7eb2e8f9f7 | 276 | uart_irq(LPUART_1, 2); |
<> | 144:ef7eb2e8f9f7 | 277 | } |
<> | 144:ef7eb2e8f9f7 | 278 | |
<> | 144:ef7eb2e8f9f7 | 279 | #if defined(USART4_BASE) |
<> | 144:ef7eb2e8f9f7 | 280 | static void uart4_irq(void) |
<> | 144:ef7eb2e8f9f7 | 281 | { |
<> | 144:ef7eb2e8f9f7 | 282 | uart_irq(UART_4, 3); |
<> | 144:ef7eb2e8f9f7 | 283 | } |
<> | 144:ef7eb2e8f9f7 | 284 | #endif |
<> | 144:ef7eb2e8f9f7 | 285 | |
<> | 144:ef7eb2e8f9f7 | 286 | #if defined(USART5_BASE) |
<> | 144:ef7eb2e8f9f7 | 287 | static void uart5_irq(void) |
<> | 144:ef7eb2e8f9f7 | 288 | { |
<> | 144:ef7eb2e8f9f7 | 289 | uart_irq(UART_5, 4); |
<> | 144:ef7eb2e8f9f7 | 290 | } |
<> | 144:ef7eb2e8f9f7 | 291 | #endif |
<> | 144:ef7eb2e8f9f7 | 292 | |
<> | 144:ef7eb2e8f9f7 | 293 | void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) |
<> | 144:ef7eb2e8f9f7 | 294 | { |
<> | 144:ef7eb2e8f9f7 | 295 | irq_handler = handler; |
<> | 144:ef7eb2e8f9f7 | 296 | serial_irq_ids[obj->index] = id; |
<> | 144:ef7eb2e8f9f7 | 297 | } |
<> | 144:ef7eb2e8f9f7 | 298 | |
<> | 144:ef7eb2e8f9f7 | 299 | void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) |
<> | 144:ef7eb2e8f9f7 | 300 | { |
<> | 144:ef7eb2e8f9f7 | 301 | IRQn_Type irq_n = (IRQn_Type)0; |
<> | 144:ef7eb2e8f9f7 | 302 | uint32_t vector = 0; |
<> | 144:ef7eb2e8f9f7 | 303 | |
<> | 144:ef7eb2e8f9f7 | 304 | UartHandle.Instance = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 305 | |
<> | 144:ef7eb2e8f9f7 | 306 | #if defined(USART1_BASE) |
<> | 144:ef7eb2e8f9f7 | 307 | if (obj->uart == UART_1) { |
<> | 144:ef7eb2e8f9f7 | 308 | irq_n = USART1_IRQn; |
<> | 144:ef7eb2e8f9f7 | 309 | vector = (uint32_t)&uart1_irq; |
<> | 144:ef7eb2e8f9f7 | 310 | } |
<> | 144:ef7eb2e8f9f7 | 311 | #endif |
<> | 144:ef7eb2e8f9f7 | 312 | |
<> | 144:ef7eb2e8f9f7 | 313 | if (obj->uart == UART_2) { |
<> | 144:ef7eb2e8f9f7 | 314 | irq_n = USART2_IRQn; |
<> | 144:ef7eb2e8f9f7 | 315 | vector = (uint32_t)&uart2_irq; |
<> | 144:ef7eb2e8f9f7 | 316 | } |
<> | 144:ef7eb2e8f9f7 | 317 | |
<> | 144:ef7eb2e8f9f7 | 318 | if (obj->uart == LPUART_1) { |
<> | 144:ef7eb2e8f9f7 | 319 | irq_n = RNG_LPUART1_IRQn; |
<> | 144:ef7eb2e8f9f7 | 320 | vector = (uint32_t)&lpuart1_irq; |
<> | 144:ef7eb2e8f9f7 | 321 | } |
<> | 144:ef7eb2e8f9f7 | 322 | |
<> | 144:ef7eb2e8f9f7 | 323 | #if defined(USART4_BASE) |
<> | 144:ef7eb2e8f9f7 | 324 | if (obj->uart == UART_4) { |
<> | 144:ef7eb2e8f9f7 | 325 | irq_n = USART4_5_IRQn; |
<> | 144:ef7eb2e8f9f7 | 326 | vector = (uint32_t)&uart4_irq; |
<> | 144:ef7eb2e8f9f7 | 327 | } |
<> | 144:ef7eb2e8f9f7 | 328 | #endif |
<> | 144:ef7eb2e8f9f7 | 329 | |
<> | 144:ef7eb2e8f9f7 | 330 | #if defined(USART5_BASE) |
<> | 144:ef7eb2e8f9f7 | 331 | if (obj->uart == UART_5) { |
<> | 144:ef7eb2e8f9f7 | 332 | irq_n = USART4_5_IRQn; |
<> | 144:ef7eb2e8f9f7 | 333 | vector = (uint32_t)&uart5_irq; |
<> | 144:ef7eb2e8f9f7 | 334 | } |
<> | 144:ef7eb2e8f9f7 | 335 | #endif |
<> | 144:ef7eb2e8f9f7 | 336 | |
<> | 144:ef7eb2e8f9f7 | 337 | if (enable) { |
<> | 144:ef7eb2e8f9f7 | 338 | |
<> | 144:ef7eb2e8f9f7 | 339 | if (irq == RxIrq) { |
<> | 144:ef7eb2e8f9f7 | 340 | __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE); |
<> | 144:ef7eb2e8f9f7 | 341 | } else { // TxIrq |
<> | 144:ef7eb2e8f9f7 | 342 | __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC); |
<> | 144:ef7eb2e8f9f7 | 343 | } |
<> | 144:ef7eb2e8f9f7 | 344 | |
<> | 144:ef7eb2e8f9f7 | 345 | NVIC_SetVector(irq_n, vector); |
<> | 144:ef7eb2e8f9f7 | 346 | NVIC_EnableIRQ(irq_n); |
<> | 144:ef7eb2e8f9f7 | 347 | |
<> | 144:ef7eb2e8f9f7 | 348 | } else { // disable |
<> | 144:ef7eb2e8f9f7 | 349 | |
<> | 144:ef7eb2e8f9f7 | 350 | int all_disabled = 0; |
<> | 144:ef7eb2e8f9f7 | 351 | |
<> | 144:ef7eb2e8f9f7 | 352 | if (irq == RxIrq) { |
<> | 144:ef7eb2e8f9f7 | 353 | __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE); |
<> | 144:ef7eb2e8f9f7 | 354 | // Check if TxIrq is disabled too |
<> | 144:ef7eb2e8f9f7 | 355 | if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1; |
<> | 144:ef7eb2e8f9f7 | 356 | } else { // TxIrq |
<> | 144:ef7eb2e8f9f7 | 357 | __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC); |
<> | 144:ef7eb2e8f9f7 | 358 | // Check if RxIrq is disabled too |
<> | 144:ef7eb2e8f9f7 | 359 | if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1; |
<> | 144:ef7eb2e8f9f7 | 360 | } |
<> | 144:ef7eb2e8f9f7 | 361 | |
<> | 144:ef7eb2e8f9f7 | 362 | if (all_disabled) NVIC_DisableIRQ(irq_n); |
<> | 144:ef7eb2e8f9f7 | 363 | |
<> | 144:ef7eb2e8f9f7 | 364 | } |
<> | 144:ef7eb2e8f9f7 | 365 | } |
<> | 144:ef7eb2e8f9f7 | 366 | |
<> | 144:ef7eb2e8f9f7 | 367 | /****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 368 | * READ/WRITE |
<> | 144:ef7eb2e8f9f7 | 369 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 370 | |
<> | 144:ef7eb2e8f9f7 | 371 | int serial_getc(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 372 | { |
<> | 144:ef7eb2e8f9f7 | 373 | USART_TypeDef *uart = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 374 | while (!serial_readable(obj)); |
<> | 144:ef7eb2e8f9f7 | 375 | return (int)(uart->RDR & (uint32_t)0xFF); |
<> | 144:ef7eb2e8f9f7 | 376 | } |
<> | 144:ef7eb2e8f9f7 | 377 | |
<> | 144:ef7eb2e8f9f7 | 378 | void serial_putc(serial_t *obj, int c) |
<> | 144:ef7eb2e8f9f7 | 379 | { |
<> | 144:ef7eb2e8f9f7 | 380 | USART_TypeDef *uart = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 381 | while (!serial_writable(obj)); |
<> | 144:ef7eb2e8f9f7 | 382 | uart->TDR = (uint32_t)(c & (uint32_t)0xFF); |
<> | 144:ef7eb2e8f9f7 | 383 | } |
<> | 144:ef7eb2e8f9f7 | 384 | |
<> | 144:ef7eb2e8f9f7 | 385 | int serial_readable(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 386 | { |
<> | 144:ef7eb2e8f9f7 | 387 | int status; |
<> | 144:ef7eb2e8f9f7 | 388 | UartHandle.Instance = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 389 | // Check if data is received |
<> | 144:ef7eb2e8f9f7 | 390 | status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0); |
<> | 144:ef7eb2e8f9f7 | 391 | return status; |
<> | 144:ef7eb2e8f9f7 | 392 | } |
<> | 144:ef7eb2e8f9f7 | 393 | |
<> | 144:ef7eb2e8f9f7 | 394 | int serial_writable(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 395 | { |
<> | 144:ef7eb2e8f9f7 | 396 | int status; |
<> | 144:ef7eb2e8f9f7 | 397 | UartHandle.Instance = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 398 | // Check if data is transmitted |
<> | 144:ef7eb2e8f9f7 | 399 | status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0); |
<> | 144:ef7eb2e8f9f7 | 400 | return status; |
<> | 144:ef7eb2e8f9f7 | 401 | } |
<> | 144:ef7eb2e8f9f7 | 402 | |
<> | 144:ef7eb2e8f9f7 | 403 | void serial_clear(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 404 | { |
<> | 144:ef7eb2e8f9f7 | 405 | UartHandle.Instance = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 406 | __HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF); |
<> | 144:ef7eb2e8f9f7 | 407 | __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST); |
<> | 144:ef7eb2e8f9f7 | 408 | } |
<> | 144:ef7eb2e8f9f7 | 409 | |
<> | 144:ef7eb2e8f9f7 | 410 | void serial_pinout_tx(PinName tx) |
<> | 144:ef7eb2e8f9f7 | 411 | { |
<> | 144:ef7eb2e8f9f7 | 412 | pinmap_pinout(tx, PinMap_UART_TX); |
<> | 144:ef7eb2e8f9f7 | 413 | } |
<> | 144:ef7eb2e8f9f7 | 414 | |
<> | 144:ef7eb2e8f9f7 | 415 | void serial_break_set(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 416 | { |
<> | 144:ef7eb2e8f9f7 | 417 | UartHandle.Instance = (USART_TypeDef *)(obj->uart); |
<> | 144:ef7eb2e8f9f7 | 418 | __HAL_UART_SEND_REQ(&UartHandle, UART_SENDBREAK_REQUEST); |
<> | 144:ef7eb2e8f9f7 | 419 | } |
<> | 144:ef7eb2e8f9f7 | 420 | |
<> | 144:ef7eb2e8f9f7 | 421 | void serial_break_clear(serial_t *obj) |
<> | 144:ef7eb2e8f9f7 | 422 | { |
<> | 144:ef7eb2e8f9f7 | 423 | } |
<> | 144:ef7eb2e8f9f7 | 424 | |
<> | 144:ef7eb2e8f9f7 | 425 | #endif |