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TARGET_KW24D/TOOLCHAIN_IAR/fsl_uart.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 171:3a7713b1edbc 1 /*
AnnaBridge 171:3a7713b1edbc 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
AnnaBridge 171:3a7713b1edbc 3 * All rights reserved.
AnnaBridge 171:3a7713b1edbc 4 *
AnnaBridge 171:3a7713b1edbc 5 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 171:3a7713b1edbc 6 * are permitted provided that the following conditions are met:
AnnaBridge 171:3a7713b1edbc 7 *
AnnaBridge 171:3a7713b1edbc 8 * o Redistributions of source code must retain the above copyright notice, this list
AnnaBridge 171:3a7713b1edbc 9 * of conditions and the following disclaimer.
AnnaBridge 171:3a7713b1edbc 10 *
AnnaBridge 171:3a7713b1edbc 11 * o Redistributions in binary form must reproduce the above copyright notice, this
AnnaBridge 171:3a7713b1edbc 12 * list of conditions and the following disclaimer in the documentation and/or
AnnaBridge 171:3a7713b1edbc 13 * other materials provided with the distribution.
AnnaBridge 171:3a7713b1edbc 14 *
AnnaBridge 171:3a7713b1edbc 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
AnnaBridge 171:3a7713b1edbc 16 * contributors may be used to endorse or promote products derived from this
AnnaBridge 171:3a7713b1edbc 17 * software without specific prior written permission.
AnnaBridge 171:3a7713b1edbc 18 *
AnnaBridge 171:3a7713b1edbc 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
AnnaBridge 171:3a7713b1edbc 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
AnnaBridge 171:3a7713b1edbc 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 171:3a7713b1edbc 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
AnnaBridge 171:3a7713b1edbc 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
AnnaBridge 171:3a7713b1edbc 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
AnnaBridge 171:3a7713b1edbc 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
AnnaBridge 171:3a7713b1edbc 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AnnaBridge 171:3a7713b1edbc 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
AnnaBridge 171:3a7713b1edbc 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 171:3a7713b1edbc 29 */
AnnaBridge 171:3a7713b1edbc 30 #ifndef _FSL_UART_H_
AnnaBridge 171:3a7713b1edbc 31 #define _FSL_UART_H_
AnnaBridge 171:3a7713b1edbc 32
AnnaBridge 171:3a7713b1edbc 33 #include "fsl_common.h"
AnnaBridge 171:3a7713b1edbc 34
AnnaBridge 171:3a7713b1edbc 35 /*!
AnnaBridge 171:3a7713b1edbc 36 * @addtogroup uart_driver
AnnaBridge 171:3a7713b1edbc 37 * @{
AnnaBridge 171:3a7713b1edbc 38 */
AnnaBridge 171:3a7713b1edbc 39
AnnaBridge 171:3a7713b1edbc 40
AnnaBridge 171:3a7713b1edbc 41 /*******************************************************************************
AnnaBridge 171:3a7713b1edbc 42 * Definitions
AnnaBridge 171:3a7713b1edbc 43 ******************************************************************************/
AnnaBridge 171:3a7713b1edbc 44
AnnaBridge 171:3a7713b1edbc 45 /*! @name Driver version */
AnnaBridge 171:3a7713b1edbc 46 /*@{*/
AnnaBridge 171:3a7713b1edbc 47 /*! @brief UART driver version 2.1.1. */
AnnaBridge 171:3a7713b1edbc 48 #define FSL_UART_DRIVER_VERSION (MAKE_VERSION(2, 1, 1))
AnnaBridge 171:3a7713b1edbc 49 /*@}*/
AnnaBridge 171:3a7713b1edbc 50
AnnaBridge 171:3a7713b1edbc 51 /*! @brief Error codes for the UART driver. */
AnnaBridge 171:3a7713b1edbc 52 enum _uart_status
AnnaBridge 171:3a7713b1edbc 53 {
AnnaBridge 171:3a7713b1edbc 54 kStatus_UART_TxBusy = MAKE_STATUS(kStatusGroup_UART, 0), /*!< Transmitter is busy. */
AnnaBridge 171:3a7713b1edbc 55 kStatus_UART_RxBusy = MAKE_STATUS(kStatusGroup_UART, 1), /*!< Receiver is busy. */
AnnaBridge 171:3a7713b1edbc 56 kStatus_UART_TxIdle = MAKE_STATUS(kStatusGroup_UART, 2), /*!< UART transmitter is idle. */
AnnaBridge 171:3a7713b1edbc 57 kStatus_UART_RxIdle = MAKE_STATUS(kStatusGroup_UART, 3), /*!< UART receiver is idle. */
AnnaBridge 171:3a7713b1edbc 58 kStatus_UART_TxWatermarkTooLarge = MAKE_STATUS(kStatusGroup_UART, 4), /*!< TX FIFO watermark too large */
AnnaBridge 171:3a7713b1edbc 59 kStatus_UART_RxWatermarkTooLarge = MAKE_STATUS(kStatusGroup_UART, 5), /*!< RX FIFO watermark too large */
AnnaBridge 171:3a7713b1edbc 60 kStatus_UART_FlagCannotClearManually =
AnnaBridge 171:3a7713b1edbc 61 MAKE_STATUS(kStatusGroup_UART, 6), /*!< UART flag can't be manually cleared. */
AnnaBridge 171:3a7713b1edbc 62 kStatus_UART_Error = MAKE_STATUS(kStatusGroup_UART, 7), /*!< Error happens on UART. */
AnnaBridge 171:3a7713b1edbc 63 kStatus_UART_RxRingBufferOverrun = MAKE_STATUS(kStatusGroup_UART, 8), /*!< UART RX software ring buffer overrun. */
AnnaBridge 171:3a7713b1edbc 64 kStatus_UART_RxHardwareOverrun = MAKE_STATUS(kStatusGroup_UART, 9), /*!< UART RX receiver overrun. */
AnnaBridge 171:3a7713b1edbc 65 kStatus_UART_NoiseError = MAKE_STATUS(kStatusGroup_UART, 10), /*!< UART noise error. */
AnnaBridge 171:3a7713b1edbc 66 kStatus_UART_FramingError = MAKE_STATUS(kStatusGroup_UART, 11), /*!< UART framing error. */
AnnaBridge 171:3a7713b1edbc 67 kStatus_UART_ParityError = MAKE_STATUS(kStatusGroup_UART, 12), /*!< UART parity error. */
AnnaBridge 171:3a7713b1edbc 68 kStatus_UART_BaudrateNotSupport = MAKE_STATUS(kStatusGroup_UART, 13), /*!< Baudrate is not support in current clock source */
AnnaBridge 171:3a7713b1edbc 69 };
AnnaBridge 171:3a7713b1edbc 70
AnnaBridge 171:3a7713b1edbc 71 /*! @brief UART parity mode. */
AnnaBridge 171:3a7713b1edbc 72 typedef enum _uart_parity_mode
AnnaBridge 171:3a7713b1edbc 73 {
AnnaBridge 171:3a7713b1edbc 74 kUART_ParityDisabled = 0x0U, /*!< Parity disabled */
AnnaBridge 171:3a7713b1edbc 75 kUART_ParityEven = 0x2U, /*!< Parity enabled, type even, bit setting: PE|PT = 10 */
AnnaBridge 171:3a7713b1edbc 76 kUART_ParityOdd = 0x3U, /*!< Parity enabled, type odd, bit setting: PE|PT = 11 */
AnnaBridge 171:3a7713b1edbc 77 } uart_parity_mode_t;
AnnaBridge 171:3a7713b1edbc 78
AnnaBridge 171:3a7713b1edbc 79 /*! @brief UART stop bit count. */
AnnaBridge 171:3a7713b1edbc 80 typedef enum _uart_stop_bit_count
AnnaBridge 171:3a7713b1edbc 81 {
AnnaBridge 171:3a7713b1edbc 82 kUART_OneStopBit = 0U, /*!< One stop bit */
AnnaBridge 171:3a7713b1edbc 83 kUART_TwoStopBit = 1U, /*!< Two stop bits */
AnnaBridge 171:3a7713b1edbc 84 } uart_stop_bit_count_t;
AnnaBridge 171:3a7713b1edbc 85
AnnaBridge 171:3a7713b1edbc 86 /*!
AnnaBridge 171:3a7713b1edbc 87 * @brief UART interrupt configuration structure, default settings all disabled.
AnnaBridge 171:3a7713b1edbc 88 *
AnnaBridge 171:3a7713b1edbc 89 * This structure contains the settings for all of the UART interrupt configurations.
AnnaBridge 171:3a7713b1edbc 90 */
AnnaBridge 171:3a7713b1edbc 91 enum _uart_interrupt_enable
AnnaBridge 171:3a7713b1edbc 92 {
AnnaBridge 171:3a7713b1edbc 93 #if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT
AnnaBridge 171:3a7713b1edbc 94 kUART_LinBreakInterruptEnable = (UART_BDH_LBKDIE_MASK), /*!< LIN break detect interrupt. */
AnnaBridge 171:3a7713b1edbc 95 #endif
AnnaBridge 171:3a7713b1edbc 96 kUART_RxActiveEdgeInterruptEnable = (UART_BDH_RXEDGIE_MASK), /*!< RX active edge interrupt. */
AnnaBridge 171:3a7713b1edbc 97 kUART_TxDataRegEmptyInterruptEnable = (UART_C2_TIE_MASK << 8), /*!< Transmit data register empty interrupt. */
AnnaBridge 171:3a7713b1edbc 98 kUART_TransmissionCompleteInterruptEnable = (UART_C2_TCIE_MASK << 8), /*!< Transmission complete interrupt. */
AnnaBridge 171:3a7713b1edbc 99 kUART_RxDataRegFullInterruptEnable = (UART_C2_RIE_MASK << 8), /*!< Receiver data register full interrupt. */
AnnaBridge 171:3a7713b1edbc 100 kUART_IdleLineInterruptEnable = (UART_C2_ILIE_MASK << 8), /*!< Idle line interrupt. */
AnnaBridge 171:3a7713b1edbc 101 kUART_RxOverrunInterruptEnable = (UART_C3_ORIE_MASK << 16), /*!< Receiver overrun interrupt. */
AnnaBridge 171:3a7713b1edbc 102 kUART_NoiseErrorInterruptEnable = (UART_C3_NEIE_MASK << 16), /*!< Noise error flag interrupt. */
AnnaBridge 171:3a7713b1edbc 103 kUART_FramingErrorInterruptEnable = (UART_C3_FEIE_MASK << 16), /*!< Framing error flag interrupt. */
AnnaBridge 171:3a7713b1edbc 104 kUART_ParityErrorInterruptEnable = (UART_C3_PEIE_MASK << 16), /*!< Parity error flag interrupt. */
AnnaBridge 171:3a7713b1edbc 105 #if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO
AnnaBridge 171:3a7713b1edbc 106 kUART_RxFifoOverflowInterruptEnable = (UART_CFIFO_RXOFE_MASK << 24), /*!< RX FIFO overflow interrupt. */
AnnaBridge 171:3a7713b1edbc 107 kUART_TxFifoOverflowInterruptEnable = (UART_CFIFO_TXOFE_MASK << 24), /*!< TX FIFO overflow interrupt. */
AnnaBridge 171:3a7713b1edbc 108 kUART_RxFifoUnderflowInterruptEnable = (UART_CFIFO_RXUFE_MASK << 24), /*!< RX FIFO underflow interrupt. */
AnnaBridge 171:3a7713b1edbc 109 #endif
AnnaBridge 171:3a7713b1edbc 110 kUART_AllInterruptsEnable =
AnnaBridge 171:3a7713b1edbc 111 #if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT
AnnaBridge 171:3a7713b1edbc 112 kUART_LinBreakInterruptEnable |
AnnaBridge 171:3a7713b1edbc 113 #endif
AnnaBridge 171:3a7713b1edbc 114 kUART_RxActiveEdgeInterruptEnable | kUART_TxDataRegEmptyInterruptEnable |
AnnaBridge 171:3a7713b1edbc 115 kUART_TransmissionCompleteInterruptEnable | kUART_RxDataRegFullInterruptEnable |
AnnaBridge 171:3a7713b1edbc 116 kUART_IdleLineInterruptEnable | kUART_RxOverrunInterruptEnable | kUART_NoiseErrorInterruptEnable |
AnnaBridge 171:3a7713b1edbc 117 kUART_FramingErrorInterruptEnable | kUART_ParityErrorInterruptEnable
AnnaBridge 171:3a7713b1edbc 118 #if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO
AnnaBridge 171:3a7713b1edbc 119 | kUART_RxFifoOverflowInterruptEnable | kUART_TxFifoOverflowInterruptEnable
AnnaBridge 171:3a7713b1edbc 120 | kUART_RxFifoUnderflowInterruptEnable
AnnaBridge 171:3a7713b1edbc 121 #endif
AnnaBridge 171:3a7713b1edbc 122 ,
AnnaBridge 171:3a7713b1edbc 123 };
AnnaBridge 171:3a7713b1edbc 124
AnnaBridge 171:3a7713b1edbc 125 /*!
AnnaBridge 171:3a7713b1edbc 126 * @brief UART status flags.
AnnaBridge 171:3a7713b1edbc 127 *
AnnaBridge 171:3a7713b1edbc 128 * This provides constants for the UART status flags for use in the UART functions.
AnnaBridge 171:3a7713b1edbc 129 */
AnnaBridge 171:3a7713b1edbc 130 enum _uart_flags
AnnaBridge 171:3a7713b1edbc 131 {
AnnaBridge 171:3a7713b1edbc 132 kUART_TxDataRegEmptyFlag = (UART_S1_TDRE_MASK), /*!< TX data register empty flag. */
AnnaBridge 171:3a7713b1edbc 133 kUART_TransmissionCompleteFlag = (UART_S1_TC_MASK), /*!< Transmission complete flag. */
AnnaBridge 171:3a7713b1edbc 134 kUART_RxDataRegFullFlag = (UART_S1_RDRF_MASK), /*!< RX data register full flag. */
AnnaBridge 171:3a7713b1edbc 135 kUART_IdleLineFlag = (UART_S1_IDLE_MASK), /*!< Idle line detect flag. */
AnnaBridge 171:3a7713b1edbc 136 kUART_RxOverrunFlag = (UART_S1_OR_MASK), /*!< RX overrun flag. */
AnnaBridge 171:3a7713b1edbc 137 kUART_NoiseErrorFlag = (UART_S1_NF_MASK), /*!< RX takes 3 samples of each received bit.
AnnaBridge 171:3a7713b1edbc 138 If any of these samples differ, noise flag sets */
AnnaBridge 171:3a7713b1edbc 139 kUART_FramingErrorFlag = (UART_S1_FE_MASK), /*!< Frame error flag, sets if logic 0 was detected
AnnaBridge 171:3a7713b1edbc 140 where stop bit expected */
AnnaBridge 171:3a7713b1edbc 141 kUART_ParityErrorFlag = (UART_S1_PF_MASK), /*!< If parity enabled, sets upon parity error detection */
AnnaBridge 171:3a7713b1edbc 142 #if defined(FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT) && FSL_FEATURE_UART_HAS_LIN_BREAK_DETECT
AnnaBridge 171:3a7713b1edbc 143 kUART_LinBreakFlag =
AnnaBridge 171:3a7713b1edbc 144 (UART_S2_LBKDIF_MASK << 8), /*!< LIN break detect interrupt flag, sets when
AnnaBridge 171:3a7713b1edbc 145 LIN break char detected and LIN circuit enabled */
AnnaBridge 171:3a7713b1edbc 146 #endif
AnnaBridge 171:3a7713b1edbc 147 kUART_RxActiveEdgeFlag = (UART_S2_RXEDGIF_MASK << 8), /*!< RX pin active edge interrupt flag,
AnnaBridge 171:3a7713b1edbc 148 sets when active edge detected */
AnnaBridge 171:3a7713b1edbc 149 kUART_RxActiveFlag = (UART_S2_RAF_MASK << 8), /*!< Receiver Active Flag (RAF),
AnnaBridge 171:3a7713b1edbc 150 sets at beginning of valid start bit */
AnnaBridge 171:3a7713b1edbc 151 #if defined(FSL_FEATURE_UART_HAS_EXTENDED_DATA_REGISTER_FLAGS) && FSL_FEATURE_UART_HAS_EXTENDED_DATA_REGISTER_FLAGS
AnnaBridge 171:3a7713b1edbc 152 kUART_NoiseErrorInRxDataRegFlag = (UART_ED_NOISY_MASK << 16), /*!< Noisy bit, sets if noise detected. */
AnnaBridge 171:3a7713b1edbc 153 kUART_ParityErrorInRxDataRegFlag = (UART_ED_PARITYE_MASK << 16), /*!< Paritye bit, sets if parity error detected. */
AnnaBridge 171:3a7713b1edbc 154 #endif
AnnaBridge 171:3a7713b1edbc 155 #if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO
AnnaBridge 171:3a7713b1edbc 156 kUART_TxFifoEmptyFlag = (UART_SFIFO_TXEMPT_MASK << 24), /*!< TXEMPT bit, sets if TX buffer is empty */
AnnaBridge 171:3a7713b1edbc 157 kUART_RxFifoEmptyFlag = (UART_SFIFO_RXEMPT_MASK << 24), /*!< RXEMPT bit, sets if RX buffer is empty */
AnnaBridge 171:3a7713b1edbc 158 kUART_TxFifoOverflowFlag = (UART_SFIFO_TXOF_MASK << 24), /*!< TXOF bit, sets if TX buffer overflow occurred */
AnnaBridge 171:3a7713b1edbc 159 kUART_RxFifoOverflowFlag = (UART_SFIFO_RXOF_MASK << 24), /*!< RXOF bit, sets if receive buffer overflow */
AnnaBridge 171:3a7713b1edbc 160 kUART_RxFifoUnderflowFlag = (UART_SFIFO_RXUF_MASK << 24), /*!< RXUF bit, sets if receive buffer underflow */
AnnaBridge 171:3a7713b1edbc 161 #endif
AnnaBridge 171:3a7713b1edbc 162 };
AnnaBridge 171:3a7713b1edbc 163
AnnaBridge 171:3a7713b1edbc 164 /*! @brief UART configuration structure. */
AnnaBridge 171:3a7713b1edbc 165 typedef struct _uart_config
AnnaBridge 171:3a7713b1edbc 166 {
AnnaBridge 171:3a7713b1edbc 167 uint32_t baudRate_Bps; /*!< UART baud rate */
AnnaBridge 171:3a7713b1edbc 168 uart_parity_mode_t parityMode; /*!< Parity mode, disabled (default), even, odd */
AnnaBridge 171:3a7713b1edbc 169 #if defined(FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT) && FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT
AnnaBridge 171:3a7713b1edbc 170 uart_stop_bit_count_t stopBitCount; /*!< Number of stop bits, 1 stop bit (default) or 2 stop bits */
AnnaBridge 171:3a7713b1edbc 171 #endif
AnnaBridge 171:3a7713b1edbc 172 #if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO
AnnaBridge 171:3a7713b1edbc 173 uint8_t txFifoWatermark; /*!< TX FIFO watermark */
AnnaBridge 171:3a7713b1edbc 174 uint8_t rxFifoWatermark; /*!< RX FIFO watermark */
AnnaBridge 171:3a7713b1edbc 175 #endif
AnnaBridge 171:3a7713b1edbc 176 bool enableTx; /*!< Enable TX */
AnnaBridge 171:3a7713b1edbc 177 bool enableRx; /*!< Enable RX */
AnnaBridge 171:3a7713b1edbc 178 } uart_config_t;
AnnaBridge 171:3a7713b1edbc 179
AnnaBridge 171:3a7713b1edbc 180 /*! @brief UART transfer structure. */
AnnaBridge 171:3a7713b1edbc 181 typedef struct _uart_transfer
AnnaBridge 171:3a7713b1edbc 182 {
AnnaBridge 171:3a7713b1edbc 183 uint8_t *data; /*!< The buffer of data to be transfer.*/
AnnaBridge 171:3a7713b1edbc 184 size_t dataSize; /*!< The byte count to be transfer. */
AnnaBridge 171:3a7713b1edbc 185 } uart_transfer_t;
AnnaBridge 171:3a7713b1edbc 186
AnnaBridge 171:3a7713b1edbc 187 /* Forward declaration of the handle typedef. */
AnnaBridge 171:3a7713b1edbc 188 typedef struct _uart_handle uart_handle_t;
AnnaBridge 171:3a7713b1edbc 189
AnnaBridge 171:3a7713b1edbc 190 /*! @brief UART transfer callback function. */
AnnaBridge 171:3a7713b1edbc 191 typedef void (*uart_transfer_callback_t)(UART_Type *base, uart_handle_t *handle, status_t status, void *userData);
AnnaBridge 171:3a7713b1edbc 192
AnnaBridge 171:3a7713b1edbc 193 /*! @brief UART handle structure. */
AnnaBridge 171:3a7713b1edbc 194 struct _uart_handle
AnnaBridge 171:3a7713b1edbc 195 {
AnnaBridge 171:3a7713b1edbc 196 uint8_t *volatile txData; /*!< Address of remaining data to send. */
AnnaBridge 171:3a7713b1edbc 197 volatile size_t txDataSize; /*!< Size of the remaining data to send. */
AnnaBridge 171:3a7713b1edbc 198 size_t txDataSizeAll; /*!< Size of the data to send out. */
AnnaBridge 171:3a7713b1edbc 199 uint8_t *volatile rxData; /*!< Address of remaining data to receive. */
AnnaBridge 171:3a7713b1edbc 200 volatile size_t rxDataSize; /*!< Size of the remaining data to receive. */
AnnaBridge 171:3a7713b1edbc 201 size_t rxDataSizeAll; /*!< Size of the data to receive. */
AnnaBridge 171:3a7713b1edbc 202
AnnaBridge 171:3a7713b1edbc 203 uint8_t *rxRingBuffer; /*!< Start address of the receiver ring buffer. */
AnnaBridge 171:3a7713b1edbc 204 size_t rxRingBufferSize; /*!< Size of the ring buffer. */
AnnaBridge 171:3a7713b1edbc 205 volatile uint16_t rxRingBufferHead; /*!< Index for the driver to store received data into ring buffer. */
AnnaBridge 171:3a7713b1edbc 206 volatile uint16_t rxRingBufferTail; /*!< Index for the user to get data from the ring buffer. */
AnnaBridge 171:3a7713b1edbc 207
AnnaBridge 171:3a7713b1edbc 208 uart_transfer_callback_t callback; /*!< Callback function. */
AnnaBridge 171:3a7713b1edbc 209 void *userData; /*!< UART callback function parameter.*/
AnnaBridge 171:3a7713b1edbc 210
AnnaBridge 171:3a7713b1edbc 211 volatile uint8_t txState; /*!< TX transfer state. */
AnnaBridge 171:3a7713b1edbc 212 volatile uint8_t rxState; /*!< RX transfer state */
AnnaBridge 171:3a7713b1edbc 213 };
AnnaBridge 171:3a7713b1edbc 214
AnnaBridge 171:3a7713b1edbc 215 /*******************************************************************************
AnnaBridge 171:3a7713b1edbc 216 * API
AnnaBridge 171:3a7713b1edbc 217 ******************************************************************************/
AnnaBridge 171:3a7713b1edbc 218
AnnaBridge 171:3a7713b1edbc 219 #if defined(__cplusplus)
AnnaBridge 171:3a7713b1edbc 220 extern "C" {
AnnaBridge 171:3a7713b1edbc 221 #endif /* _cplusplus */
AnnaBridge 171:3a7713b1edbc 222
AnnaBridge 171:3a7713b1edbc 223 /*!
AnnaBridge 171:3a7713b1edbc 224 * @name Initialization and deinitialization
AnnaBridge 171:3a7713b1edbc 225 * @{
AnnaBridge 171:3a7713b1edbc 226 */
AnnaBridge 171:3a7713b1edbc 227
AnnaBridge 171:3a7713b1edbc 228 /*!
AnnaBridge 171:3a7713b1edbc 229 * @brief Initializes a UART instance with user configuration structure and peripheral clock.
AnnaBridge 171:3a7713b1edbc 230 *
AnnaBridge 171:3a7713b1edbc 231 * This function configures the UART module with the user-defined settings. The user can configure the configuration
AnnaBridge 171:3a7713b1edbc 232 * structure and also get the default configuration by using the UART_GetDefaultConfig() function.
AnnaBridge 171:3a7713b1edbc 233 * Example below shows how to use this API to configure UART.
AnnaBridge 171:3a7713b1edbc 234 * @code
AnnaBridge 171:3a7713b1edbc 235 * uart_config_t uartConfig;
AnnaBridge 171:3a7713b1edbc 236 * uartConfig.baudRate_Bps = 115200U;
AnnaBridge 171:3a7713b1edbc 237 * uartConfig.parityMode = kUART_ParityDisabled;
AnnaBridge 171:3a7713b1edbc 238 * uartConfig.stopBitCount = kUART_OneStopBit;
AnnaBridge 171:3a7713b1edbc 239 * uartConfig.txFifoWatermark = 0;
AnnaBridge 171:3a7713b1edbc 240 * uartConfig.rxFifoWatermark = 1;
AnnaBridge 171:3a7713b1edbc 241 * UART_Init(UART1, &uartConfig, 20000000U);
AnnaBridge 171:3a7713b1edbc 242 * @endcode
AnnaBridge 171:3a7713b1edbc 243 *
AnnaBridge 171:3a7713b1edbc 244 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 245 * @param config Pointer to user-defined configuration structure.
AnnaBridge 171:3a7713b1edbc 246 * @param srcClock_Hz UART clock source frequency in HZ.
AnnaBridge 171:3a7713b1edbc 247 * @retval kStatus_UART_BaudrateNotSupport Baudrate is not support in current clock source.
AnnaBridge 171:3a7713b1edbc 248 * @retval kStatus_Success Status UART initialize succeed
AnnaBridge 171:3a7713b1edbc 249 */
AnnaBridge 171:3a7713b1edbc 250 status_t UART_Init(UART_Type *base, const uart_config_t *config, uint32_t srcClock_Hz);
AnnaBridge 171:3a7713b1edbc 251
AnnaBridge 171:3a7713b1edbc 252 /*!
AnnaBridge 171:3a7713b1edbc 253 * @brief Deinitializes a UART instance.
AnnaBridge 171:3a7713b1edbc 254 *
AnnaBridge 171:3a7713b1edbc 255 * This function waits for TX complete, disables TX and RX, and disables the UART clock.
AnnaBridge 171:3a7713b1edbc 256 *
AnnaBridge 171:3a7713b1edbc 257 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 258 */
AnnaBridge 171:3a7713b1edbc 259 void UART_Deinit(UART_Type *base);
AnnaBridge 171:3a7713b1edbc 260
AnnaBridge 171:3a7713b1edbc 261 /*!
AnnaBridge 171:3a7713b1edbc 262 * @brief Gets the default configuration structure.
AnnaBridge 171:3a7713b1edbc 263 *
AnnaBridge 171:3a7713b1edbc 264 * This function initializes the UART configuration structure to a default value. The default
AnnaBridge 171:3a7713b1edbc 265 * values are:
AnnaBridge 171:3a7713b1edbc 266 * uartConfig->baudRate_Bps = 115200U;
AnnaBridge 171:3a7713b1edbc 267 * uartConfig->bitCountPerChar = kUART_8BitsPerChar;
AnnaBridge 171:3a7713b1edbc 268 * uartConfig->parityMode = kUART_ParityDisabled;
AnnaBridge 171:3a7713b1edbc 269 * uartConfig->stopBitCount = kUART_OneStopBit;
AnnaBridge 171:3a7713b1edbc 270 * uartConfig->txFifoWatermark = 0;
AnnaBridge 171:3a7713b1edbc 271 * uartConfig->rxFifoWatermark = 1;
AnnaBridge 171:3a7713b1edbc 272 * uartConfig->enableTx = false;
AnnaBridge 171:3a7713b1edbc 273 * uartConfig->enableRx = false;
AnnaBridge 171:3a7713b1edbc 274 *
AnnaBridge 171:3a7713b1edbc 275 * @param config Pointer to configuration structure.
AnnaBridge 171:3a7713b1edbc 276 */
AnnaBridge 171:3a7713b1edbc 277 void UART_GetDefaultConfig(uart_config_t *config);
AnnaBridge 171:3a7713b1edbc 278
AnnaBridge 171:3a7713b1edbc 279 /*!
AnnaBridge 171:3a7713b1edbc 280 * @brief Sets the UART instance baud rate.
AnnaBridge 171:3a7713b1edbc 281 *
AnnaBridge 171:3a7713b1edbc 282 * This function configures the UART module baud rate. This function is used to update
AnnaBridge 171:3a7713b1edbc 283 * the UART module baud rate after the UART module is initialized by the UART_Init.
AnnaBridge 171:3a7713b1edbc 284 * @code
AnnaBridge 171:3a7713b1edbc 285 * UART_SetBaudRate(UART1, 115200U, 20000000U);
AnnaBridge 171:3a7713b1edbc 286 * @endcode
AnnaBridge 171:3a7713b1edbc 287 *
AnnaBridge 171:3a7713b1edbc 288 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 289 * @param baudRate_Bps UART baudrate to be set.
AnnaBridge 171:3a7713b1edbc 290 * @param srcClock_Hz UART clock source freqency in HZ.
AnnaBridge 171:3a7713b1edbc 291 * @retval kStatus_UART_BaudrateNotSupport Baudrate is not support in current clock source.
AnnaBridge 171:3a7713b1edbc 292 * @retval kStatus_Success Set baudrate succeed
AnnaBridge 171:3a7713b1edbc 293 */
AnnaBridge 171:3a7713b1edbc 294 status_t UART_SetBaudRate(UART_Type *base, uint32_t baudRate_Bps, uint32_t srcClock_Hz);
AnnaBridge 171:3a7713b1edbc 295
AnnaBridge 171:3a7713b1edbc 296 /* @} */
AnnaBridge 171:3a7713b1edbc 297
AnnaBridge 171:3a7713b1edbc 298 /*!
AnnaBridge 171:3a7713b1edbc 299 * @name Status
AnnaBridge 171:3a7713b1edbc 300 * @{
AnnaBridge 171:3a7713b1edbc 301 */
AnnaBridge 171:3a7713b1edbc 302
AnnaBridge 171:3a7713b1edbc 303 /*!
AnnaBridge 171:3a7713b1edbc 304 * @brief Get UART status flags.
AnnaBridge 171:3a7713b1edbc 305 *
AnnaBridge 171:3a7713b1edbc 306 * This function get all UART status flags, the flags are returned as the logical
AnnaBridge 171:3a7713b1edbc 307 * OR value of the enumerators @ref _uart_flags. To check a specific status,
AnnaBridge 171:3a7713b1edbc 308 * compare the return value with enumerators in @ref _uart_flags.
AnnaBridge 171:3a7713b1edbc 309 * For example, to check whether the TX is empty:
AnnaBridge 171:3a7713b1edbc 310 * @code
AnnaBridge 171:3a7713b1edbc 311 * if (kUART_TxDataRegEmptyFlag & UART_GetStatusFlags(UART1))
AnnaBridge 171:3a7713b1edbc 312 * {
AnnaBridge 171:3a7713b1edbc 313 * ...
AnnaBridge 171:3a7713b1edbc 314 * }
AnnaBridge 171:3a7713b1edbc 315 * @endcode
AnnaBridge 171:3a7713b1edbc 316 *
AnnaBridge 171:3a7713b1edbc 317 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 318 * @return UART status flags which are ORed by the enumerators in the _uart_flags.
AnnaBridge 171:3a7713b1edbc 319 */
AnnaBridge 171:3a7713b1edbc 320 uint32_t UART_GetStatusFlags(UART_Type *base);
AnnaBridge 171:3a7713b1edbc 321
AnnaBridge 171:3a7713b1edbc 322 /*!
AnnaBridge 171:3a7713b1edbc 323 * @brief Clears status flags with the provided mask.
AnnaBridge 171:3a7713b1edbc 324 *
AnnaBridge 171:3a7713b1edbc 325 * This function clears UART status flags with a provided mask. Automatically cleared flag
AnnaBridge 171:3a7713b1edbc 326 * can't be cleared by this function.
AnnaBridge 171:3a7713b1edbc 327 * Some flags can only be cleared or set by hardware itself. These flags are:
AnnaBridge 171:3a7713b1edbc 328 * kUART_TxDataRegEmptyFlag, kUART_TransmissionCompleteFlag, kUART_RxDataRegFullFlag,
AnnaBridge 171:3a7713b1edbc 329 * kUART_RxActiveFlag, kUART_NoiseErrorInRxDataRegFlag, kUART_ParityErrorInRxDataRegFlag,
AnnaBridge 171:3a7713b1edbc 330 * kUART_TxFifoEmptyFlag,kUART_RxFifoEmptyFlag
AnnaBridge 171:3a7713b1edbc 331 * Note: This API should be called when the Tx/Rx is idle, otherwise it takes no effects.
AnnaBridge 171:3a7713b1edbc 332 *
AnnaBridge 171:3a7713b1edbc 333 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 334 * @param mask The status flags to be cleared, it is logical OR value of @ref _uart_flags.
AnnaBridge 171:3a7713b1edbc 335 * @retval kStatus_UART_FlagCannotClearManually The flag can't be cleared by this function but
AnnaBridge 171:3a7713b1edbc 336 * it is cleared automatically by hardware.
AnnaBridge 171:3a7713b1edbc 337 * @retval kStatus_Success Status in the mask are cleared.
AnnaBridge 171:3a7713b1edbc 338 */
AnnaBridge 171:3a7713b1edbc 339 status_t UART_ClearStatusFlags(UART_Type *base, uint32_t mask);
AnnaBridge 171:3a7713b1edbc 340
AnnaBridge 171:3a7713b1edbc 341 /* @} */
AnnaBridge 171:3a7713b1edbc 342
AnnaBridge 171:3a7713b1edbc 343 /*!
AnnaBridge 171:3a7713b1edbc 344 * @name Interrupts
AnnaBridge 171:3a7713b1edbc 345 * @{
AnnaBridge 171:3a7713b1edbc 346 */
AnnaBridge 171:3a7713b1edbc 347
AnnaBridge 171:3a7713b1edbc 348 /*!
AnnaBridge 171:3a7713b1edbc 349 * @brief Enables UART interrupts according to the provided mask.
AnnaBridge 171:3a7713b1edbc 350 *
AnnaBridge 171:3a7713b1edbc 351 * This function enables the UART interrupts according to the provided mask. The mask
AnnaBridge 171:3a7713b1edbc 352 * is a logical OR of enumeration members. See @ref _uart_interrupt_enable.
AnnaBridge 171:3a7713b1edbc 353 * For example, to enable TX empty interrupt and RX full interrupt:
AnnaBridge 171:3a7713b1edbc 354 * @code
AnnaBridge 171:3a7713b1edbc 355 * UART_EnableInterrupts(UART1,kUART_TxDataRegEmptyInterruptEnable | kUART_RxDataRegFullInterruptEnable);
AnnaBridge 171:3a7713b1edbc 356 * @endcode
AnnaBridge 171:3a7713b1edbc 357 *
AnnaBridge 171:3a7713b1edbc 358 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 359 * @param mask The interrupts to enable. Logical OR of @ref _uart_interrupt_enable.
AnnaBridge 171:3a7713b1edbc 360 */
AnnaBridge 171:3a7713b1edbc 361 void UART_EnableInterrupts(UART_Type *base, uint32_t mask);
AnnaBridge 171:3a7713b1edbc 362
AnnaBridge 171:3a7713b1edbc 363 /*!
AnnaBridge 171:3a7713b1edbc 364 * @brief Disables the UART interrupts according to the provided mask.
AnnaBridge 171:3a7713b1edbc 365 *
AnnaBridge 171:3a7713b1edbc 366 * This function disables the UART interrupts according to the provided mask. The mask
AnnaBridge 171:3a7713b1edbc 367 * is a logical OR of enumeration members. See @ref _uart_interrupt_enable.
AnnaBridge 171:3a7713b1edbc 368 * For example, to disable TX empty interrupt and RX full interrupt:
AnnaBridge 171:3a7713b1edbc 369 * @code
AnnaBridge 171:3a7713b1edbc 370 * UART_DisableInterrupts(UART1,kUART_TxDataRegEmptyInterruptEnable | kUART_RxDataRegFullInterruptEnable);
AnnaBridge 171:3a7713b1edbc 371 * @endcode
AnnaBridge 171:3a7713b1edbc 372 *
AnnaBridge 171:3a7713b1edbc 373 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 374 * @param mask The interrupts to disable. Logical OR of @ref _uart_interrupt_enable.
AnnaBridge 171:3a7713b1edbc 375 */
AnnaBridge 171:3a7713b1edbc 376 void UART_DisableInterrupts(UART_Type *base, uint32_t mask);
AnnaBridge 171:3a7713b1edbc 377
AnnaBridge 171:3a7713b1edbc 378 /*!
AnnaBridge 171:3a7713b1edbc 379 * @brief Gets the enabled UART interrupts.
AnnaBridge 171:3a7713b1edbc 380 *
AnnaBridge 171:3a7713b1edbc 381 * This function gets the enabled UART interrupts. The enabled interrupts are returned
AnnaBridge 171:3a7713b1edbc 382 * as the logical OR value of the enumerators @ref _uart_interrupt_enable. To check
AnnaBridge 171:3a7713b1edbc 383 * a specific interrupts enable status, compare the return value with enumerators
AnnaBridge 171:3a7713b1edbc 384 * in @ref _uart_interrupt_enable.
AnnaBridge 171:3a7713b1edbc 385 * For example, to check whether TX empty interrupt is enabled:
AnnaBridge 171:3a7713b1edbc 386 * @code
AnnaBridge 171:3a7713b1edbc 387 * uint32_t enabledInterrupts = UART_GetEnabledInterrupts(UART1);
AnnaBridge 171:3a7713b1edbc 388 *
AnnaBridge 171:3a7713b1edbc 389 * if (kUART_TxDataRegEmptyInterruptEnable & enabledInterrupts)
AnnaBridge 171:3a7713b1edbc 390 * {
AnnaBridge 171:3a7713b1edbc 391 * ...
AnnaBridge 171:3a7713b1edbc 392 * }
AnnaBridge 171:3a7713b1edbc 393 * @endcode
AnnaBridge 171:3a7713b1edbc 394 *
AnnaBridge 171:3a7713b1edbc 395 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 396 * @return UART interrupt flags which are logical OR of the enumerators in @ref _uart_interrupt_enable.
AnnaBridge 171:3a7713b1edbc 397 */
AnnaBridge 171:3a7713b1edbc 398 uint32_t UART_GetEnabledInterrupts(UART_Type *base);
AnnaBridge 171:3a7713b1edbc 399
AnnaBridge 171:3a7713b1edbc 400 /* @} */
AnnaBridge 171:3a7713b1edbc 401
AnnaBridge 171:3a7713b1edbc 402 #if defined(FSL_FEATURE_UART_HAS_DMA_SELECT) && FSL_FEATURE_UART_HAS_DMA_SELECT
AnnaBridge 171:3a7713b1edbc 403 /*!
AnnaBridge 171:3a7713b1edbc 404 * @name DMA Control
AnnaBridge 171:3a7713b1edbc 405 * @{
AnnaBridge 171:3a7713b1edbc 406 */
AnnaBridge 171:3a7713b1edbc 407
AnnaBridge 171:3a7713b1edbc 408 /*!
AnnaBridge 171:3a7713b1edbc 409 * @brief Gets the UART data register address.
AnnaBridge 171:3a7713b1edbc 410 *
AnnaBridge 171:3a7713b1edbc 411 * This function returns the UART data register address, which is mainly used by DMA/eDMA.
AnnaBridge 171:3a7713b1edbc 412 *
AnnaBridge 171:3a7713b1edbc 413 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 414 * @return UART data register address which are used both by transmitter and receiver.
AnnaBridge 171:3a7713b1edbc 415 */
AnnaBridge 171:3a7713b1edbc 416 static inline uint32_t UART_GetDataRegisterAddress(UART_Type *base)
AnnaBridge 171:3a7713b1edbc 417 {
AnnaBridge 171:3a7713b1edbc 418 return (uint32_t) & (base->D);
AnnaBridge 171:3a7713b1edbc 419 }
AnnaBridge 171:3a7713b1edbc 420
AnnaBridge 171:3a7713b1edbc 421 /*!
AnnaBridge 171:3a7713b1edbc 422 * @brief Enables or disables the UART transmitter DMA request.
AnnaBridge 171:3a7713b1edbc 423 *
AnnaBridge 171:3a7713b1edbc 424 * This function enables or disables the transmit data register empty flag, S1[TDRE], to generate the DMA requests.
AnnaBridge 171:3a7713b1edbc 425 *
AnnaBridge 171:3a7713b1edbc 426 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 427 * @param enable True to enable, false to disable.
AnnaBridge 171:3a7713b1edbc 428 */
AnnaBridge 171:3a7713b1edbc 429 static inline void UART_EnableTxDMA(UART_Type *base, bool enable)
AnnaBridge 171:3a7713b1edbc 430 {
AnnaBridge 171:3a7713b1edbc 431 if (enable)
AnnaBridge 171:3a7713b1edbc 432 {
AnnaBridge 171:3a7713b1edbc 433 #if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI)
AnnaBridge 171:3a7713b1edbc 434 base->C4 |= UART_C4_TDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 435 #else
AnnaBridge 171:3a7713b1edbc 436 base->C5 |= UART_C5_TDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 437 #endif
AnnaBridge 171:3a7713b1edbc 438 base->C2 |= UART_C2_TIE_MASK;
AnnaBridge 171:3a7713b1edbc 439 }
AnnaBridge 171:3a7713b1edbc 440 else
AnnaBridge 171:3a7713b1edbc 441 {
AnnaBridge 171:3a7713b1edbc 442 #if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI)
AnnaBridge 171:3a7713b1edbc 443 base->C4 &= ~UART_C4_TDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 444 #else
AnnaBridge 171:3a7713b1edbc 445 base->C5 &= ~UART_C5_TDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 446 #endif
AnnaBridge 171:3a7713b1edbc 447 base->C2 &= ~UART_C2_TIE_MASK;
AnnaBridge 171:3a7713b1edbc 448 }
AnnaBridge 171:3a7713b1edbc 449 }
AnnaBridge 171:3a7713b1edbc 450
AnnaBridge 171:3a7713b1edbc 451 /*!
AnnaBridge 171:3a7713b1edbc 452 * @brief Enables or disables the UART receiver DMA.
AnnaBridge 171:3a7713b1edbc 453 *
AnnaBridge 171:3a7713b1edbc 454 * This function enables or disables the receiver data register full flag, S1[RDRF], to generate DMA requests.
AnnaBridge 171:3a7713b1edbc 455 *
AnnaBridge 171:3a7713b1edbc 456 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 457 * @param enable True to enable, false to disable.
AnnaBridge 171:3a7713b1edbc 458 */
AnnaBridge 171:3a7713b1edbc 459 static inline void UART_EnableRxDMA(UART_Type *base, bool enable)
AnnaBridge 171:3a7713b1edbc 460 {
AnnaBridge 171:3a7713b1edbc 461 if (enable)
AnnaBridge 171:3a7713b1edbc 462 {
AnnaBridge 171:3a7713b1edbc 463 #if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI)
AnnaBridge 171:3a7713b1edbc 464 base->C4 |= UART_C4_RDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 465 #else
AnnaBridge 171:3a7713b1edbc 466 base->C5 |= UART_C5_RDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 467 #endif
AnnaBridge 171:3a7713b1edbc 468 base->C2 |= UART_C2_RIE_MASK;
AnnaBridge 171:3a7713b1edbc 469 }
AnnaBridge 171:3a7713b1edbc 470 else
AnnaBridge 171:3a7713b1edbc 471 {
AnnaBridge 171:3a7713b1edbc 472 #if (defined(FSL_FEATURE_UART_IS_SCI) && FSL_FEATURE_UART_IS_SCI)
AnnaBridge 171:3a7713b1edbc 473 base->C4 &= ~UART_C4_RDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 474 #else
AnnaBridge 171:3a7713b1edbc 475 base->C5 &= ~UART_C5_RDMAS_MASK;
AnnaBridge 171:3a7713b1edbc 476 #endif
AnnaBridge 171:3a7713b1edbc 477 base->C2 &= ~UART_C2_RIE_MASK;
AnnaBridge 171:3a7713b1edbc 478 }
AnnaBridge 171:3a7713b1edbc 479 }
AnnaBridge 171:3a7713b1edbc 480
AnnaBridge 171:3a7713b1edbc 481 /* @} */
AnnaBridge 171:3a7713b1edbc 482 #endif /* FSL_FEATURE_UART_HAS_DMA_SELECT */
AnnaBridge 171:3a7713b1edbc 483
AnnaBridge 171:3a7713b1edbc 484 /*!
AnnaBridge 171:3a7713b1edbc 485 * @name Bus Operations
AnnaBridge 171:3a7713b1edbc 486 * @{
AnnaBridge 171:3a7713b1edbc 487 */
AnnaBridge 171:3a7713b1edbc 488
AnnaBridge 171:3a7713b1edbc 489 /*!
AnnaBridge 171:3a7713b1edbc 490 * @brief Enables or disables the UART transmitter.
AnnaBridge 171:3a7713b1edbc 491 *
AnnaBridge 171:3a7713b1edbc 492 * This function enables or disables the UART transmitter.
AnnaBridge 171:3a7713b1edbc 493 *
AnnaBridge 171:3a7713b1edbc 494 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 495 * @param enable True to enable, false to disable.
AnnaBridge 171:3a7713b1edbc 496 */
AnnaBridge 171:3a7713b1edbc 497 static inline void UART_EnableTx(UART_Type *base, bool enable)
AnnaBridge 171:3a7713b1edbc 498 {
AnnaBridge 171:3a7713b1edbc 499 if (enable)
AnnaBridge 171:3a7713b1edbc 500 {
AnnaBridge 171:3a7713b1edbc 501 base->C2 |= UART_C2_TE_MASK;
AnnaBridge 171:3a7713b1edbc 502 }
AnnaBridge 171:3a7713b1edbc 503 else
AnnaBridge 171:3a7713b1edbc 504 {
AnnaBridge 171:3a7713b1edbc 505 base->C2 &= ~UART_C2_TE_MASK;
AnnaBridge 171:3a7713b1edbc 506 }
AnnaBridge 171:3a7713b1edbc 507 }
AnnaBridge 171:3a7713b1edbc 508
AnnaBridge 171:3a7713b1edbc 509 /*!
AnnaBridge 171:3a7713b1edbc 510 * @brief Enables or disables the UART receiver.
AnnaBridge 171:3a7713b1edbc 511 *
AnnaBridge 171:3a7713b1edbc 512 * This function enables or disables the UART receiver.
AnnaBridge 171:3a7713b1edbc 513 *
AnnaBridge 171:3a7713b1edbc 514 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 515 * @param enable True to enable, false to disable.
AnnaBridge 171:3a7713b1edbc 516 */
AnnaBridge 171:3a7713b1edbc 517 static inline void UART_EnableRx(UART_Type *base, bool enable)
AnnaBridge 171:3a7713b1edbc 518 {
AnnaBridge 171:3a7713b1edbc 519 if (enable)
AnnaBridge 171:3a7713b1edbc 520 {
AnnaBridge 171:3a7713b1edbc 521 base->C2 |= UART_C2_RE_MASK;
AnnaBridge 171:3a7713b1edbc 522 }
AnnaBridge 171:3a7713b1edbc 523 else
AnnaBridge 171:3a7713b1edbc 524 {
AnnaBridge 171:3a7713b1edbc 525 base->C2 &= ~UART_C2_RE_MASK;
AnnaBridge 171:3a7713b1edbc 526 }
AnnaBridge 171:3a7713b1edbc 527 }
AnnaBridge 171:3a7713b1edbc 528
AnnaBridge 171:3a7713b1edbc 529 /*!
AnnaBridge 171:3a7713b1edbc 530 * @brief Writes to the TX register.
AnnaBridge 171:3a7713b1edbc 531 *
AnnaBridge 171:3a7713b1edbc 532 * This function writes data to the TX register directly. The upper layer must ensure
AnnaBridge 171:3a7713b1edbc 533 * that the TX register is empty or TX FIFO has empty room before calling this function.
AnnaBridge 171:3a7713b1edbc 534 *
AnnaBridge 171:3a7713b1edbc 535 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 536 * @param data The byte to write.
AnnaBridge 171:3a7713b1edbc 537 */
AnnaBridge 171:3a7713b1edbc 538 static inline void UART_WriteByte(UART_Type *base, uint8_t data)
AnnaBridge 171:3a7713b1edbc 539 {
AnnaBridge 171:3a7713b1edbc 540 base->D = data;
AnnaBridge 171:3a7713b1edbc 541 }
AnnaBridge 171:3a7713b1edbc 542
AnnaBridge 171:3a7713b1edbc 543 /*!
AnnaBridge 171:3a7713b1edbc 544 * @brief Reads the RX register directly.
AnnaBridge 171:3a7713b1edbc 545 *
AnnaBridge 171:3a7713b1edbc 546 * This function reads data from the TX register directly. The upper layer must
AnnaBridge 171:3a7713b1edbc 547 * ensure that the RX register is full or that the TX FIFO has data before calling this function.
AnnaBridge 171:3a7713b1edbc 548 *
AnnaBridge 171:3a7713b1edbc 549 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 550 * @return The byte read from UART data register.
AnnaBridge 171:3a7713b1edbc 551 */
AnnaBridge 171:3a7713b1edbc 552 static inline uint8_t UART_ReadByte(UART_Type *base)
AnnaBridge 171:3a7713b1edbc 553 {
AnnaBridge 171:3a7713b1edbc 554 return base->D;
AnnaBridge 171:3a7713b1edbc 555 }
AnnaBridge 171:3a7713b1edbc 556
AnnaBridge 171:3a7713b1edbc 557 /*!
AnnaBridge 171:3a7713b1edbc 558 * @brief Writes to the TX register using a blocking method.
AnnaBridge 171:3a7713b1edbc 559 *
AnnaBridge 171:3a7713b1edbc 560 * This function polls the TX register, waits for the TX register to be empty or for the TX FIFO
AnnaBridge 171:3a7713b1edbc 561 * to have room and writes data to the TX buffer.
AnnaBridge 171:3a7713b1edbc 562 *
AnnaBridge 171:3a7713b1edbc 563 * @note This function does not check whether all the data has been sent out to the bus.
AnnaBridge 171:3a7713b1edbc 564 * Before disabling the TX, check kUART_TransmissionCompleteFlag to ensure that the TX is
AnnaBridge 171:3a7713b1edbc 565 * finished.
AnnaBridge 171:3a7713b1edbc 566 *
AnnaBridge 171:3a7713b1edbc 567 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 568 * @param data Start address of the data to write.
AnnaBridge 171:3a7713b1edbc 569 * @param length Size of the data to write.
AnnaBridge 171:3a7713b1edbc 570 */
AnnaBridge 171:3a7713b1edbc 571 void UART_WriteBlocking(UART_Type *base, const uint8_t *data, size_t length);
AnnaBridge 171:3a7713b1edbc 572
AnnaBridge 171:3a7713b1edbc 573 /*!
AnnaBridge 171:3a7713b1edbc 574 * @brief Read RX data register using a blocking method.
AnnaBridge 171:3a7713b1edbc 575 *
AnnaBridge 171:3a7713b1edbc 576 * This function polls the RX register, waits for the RX register to be full or for RX FIFO to
AnnaBridge 171:3a7713b1edbc 577 * have data and read data from the TX register.
AnnaBridge 171:3a7713b1edbc 578 *
AnnaBridge 171:3a7713b1edbc 579 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 580 * @param data Start address of the buffer to store the received data.
AnnaBridge 171:3a7713b1edbc 581 * @param length Size of the buffer.
AnnaBridge 171:3a7713b1edbc 582 * @retval kStatus_UART_RxHardwareOverrun Receiver overrun happened while receiving data.
AnnaBridge 171:3a7713b1edbc 583 * @retval kStatus_UART_NoiseError Noise error happened while receiving data.
AnnaBridge 171:3a7713b1edbc 584 * @retval kStatus_UART_FramingError Framing error happened while receiving data.
AnnaBridge 171:3a7713b1edbc 585 * @retval kStatus_UART_ParityError Parity error happened while receiving data.
AnnaBridge 171:3a7713b1edbc 586 * @retval kStatus_Success Successfully received all data.
AnnaBridge 171:3a7713b1edbc 587 */
AnnaBridge 171:3a7713b1edbc 588 status_t UART_ReadBlocking(UART_Type *base, uint8_t *data, size_t length);
AnnaBridge 171:3a7713b1edbc 589
AnnaBridge 171:3a7713b1edbc 590 /* @} */
AnnaBridge 171:3a7713b1edbc 591
AnnaBridge 171:3a7713b1edbc 592 /*!
AnnaBridge 171:3a7713b1edbc 593 * @name Transactional
AnnaBridge 171:3a7713b1edbc 594 * @{
AnnaBridge 171:3a7713b1edbc 595 */
AnnaBridge 171:3a7713b1edbc 596
AnnaBridge 171:3a7713b1edbc 597 /*!
AnnaBridge 171:3a7713b1edbc 598 * @brief Initializes the UART handle.
AnnaBridge 171:3a7713b1edbc 599 *
AnnaBridge 171:3a7713b1edbc 600 * This function initializes the UART handle which can be used for other UART
AnnaBridge 171:3a7713b1edbc 601 * transactional APIs. Usually, for a specified UART instance,
AnnaBridge 171:3a7713b1edbc 602 * call this API once to get the initialized handle.
AnnaBridge 171:3a7713b1edbc 603 *
AnnaBridge 171:3a7713b1edbc 604 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 605 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 606 * @param callback The callback function.
AnnaBridge 171:3a7713b1edbc 607 * @param userData The parameter of the callback function.
AnnaBridge 171:3a7713b1edbc 608 */
AnnaBridge 171:3a7713b1edbc 609 void UART_TransferCreateHandle(UART_Type *base,
AnnaBridge 171:3a7713b1edbc 610 uart_handle_t *handle,
AnnaBridge 171:3a7713b1edbc 611 uart_transfer_callback_t callback,
AnnaBridge 171:3a7713b1edbc 612 void *userData);
AnnaBridge 171:3a7713b1edbc 613
AnnaBridge 171:3a7713b1edbc 614 /*!
AnnaBridge 171:3a7713b1edbc 615 * @brief Sets up the RX ring buffer.
AnnaBridge 171:3a7713b1edbc 616 *
AnnaBridge 171:3a7713b1edbc 617 * This function sets up the RX ring buffer to a specific UART handle.
AnnaBridge 171:3a7713b1edbc 618 *
AnnaBridge 171:3a7713b1edbc 619 * When the RX ring buffer is used, data received are stored into the ring buffer even when the
AnnaBridge 171:3a7713b1edbc 620 * user doesn't call the UART_TransferReceiveNonBlocking() API. If there is already data received
AnnaBridge 171:3a7713b1edbc 621 * in the ring buffer, the user can get the received data from the ring buffer directly.
AnnaBridge 171:3a7713b1edbc 622 *
AnnaBridge 171:3a7713b1edbc 623 * @note When using the RX ring buffer, one byte is reserved for internal use. In other
AnnaBridge 171:3a7713b1edbc 624 * words, if @p ringBufferSize is 32, then only 31 bytes are used for saving data.
AnnaBridge 171:3a7713b1edbc 625 *
AnnaBridge 171:3a7713b1edbc 626 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 627 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 628 * @param ringBuffer Start address of the ring buffer for background receiving. Pass NULL to disable the ring buffer.
AnnaBridge 171:3a7713b1edbc 629 * @param ringBufferSize size of the ring buffer.
AnnaBridge 171:3a7713b1edbc 630 */
AnnaBridge 171:3a7713b1edbc 631 void UART_TransferStartRingBuffer(UART_Type *base, uart_handle_t *handle, uint8_t *ringBuffer, size_t ringBufferSize);
AnnaBridge 171:3a7713b1edbc 632
AnnaBridge 171:3a7713b1edbc 633 /*!
AnnaBridge 171:3a7713b1edbc 634 * @brief Aborts the background transfer and uninstalls the ring buffer.
AnnaBridge 171:3a7713b1edbc 635 *
AnnaBridge 171:3a7713b1edbc 636 * This function aborts the background transfer and uninstalls the ring buffer.
AnnaBridge 171:3a7713b1edbc 637 *
AnnaBridge 171:3a7713b1edbc 638 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 639 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 640 */
AnnaBridge 171:3a7713b1edbc 641 void UART_TransferStopRingBuffer(UART_Type *base, uart_handle_t *handle);
AnnaBridge 171:3a7713b1edbc 642
AnnaBridge 171:3a7713b1edbc 643 /*!
AnnaBridge 171:3a7713b1edbc 644 * @brief Transmits a buffer of data using the interrupt method.
AnnaBridge 171:3a7713b1edbc 645 *
AnnaBridge 171:3a7713b1edbc 646 * This function sends data using an interrupt method. This is a non-blocking function, which
AnnaBridge 171:3a7713b1edbc 647 * returns directly without waiting for all data to be written to the TX register. When
AnnaBridge 171:3a7713b1edbc 648 * all data is written to the TX register in the ISR, the UART driver calls the callback
AnnaBridge 171:3a7713b1edbc 649 * function and passes the @ref kStatus_UART_TxIdle as status parameter.
AnnaBridge 171:3a7713b1edbc 650 *
AnnaBridge 171:3a7713b1edbc 651 * @note The kStatus_UART_TxIdle is passed to the upper layer when all data is written
AnnaBridge 171:3a7713b1edbc 652 * to the TX register. However it does not ensure that all data are sent out. Before disabling the TX,
AnnaBridge 171:3a7713b1edbc 653 * check the kUART_TransmissionCompleteFlag to ensure that the TX is finished.
AnnaBridge 171:3a7713b1edbc 654 *
AnnaBridge 171:3a7713b1edbc 655 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 656 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 657 * @param xfer UART transfer structure. See #uart_transfer_t.
AnnaBridge 171:3a7713b1edbc 658 * @retval kStatus_Success Successfully start the data transmission.
AnnaBridge 171:3a7713b1edbc 659 * @retval kStatus_UART_TxBusy Previous transmission still not finished, data not all written to TX register yet.
AnnaBridge 171:3a7713b1edbc 660 * @retval kStatus_InvalidArgument Invalid argument.
AnnaBridge 171:3a7713b1edbc 661 */
AnnaBridge 171:3a7713b1edbc 662 status_t UART_TransferSendNonBlocking(UART_Type *base, uart_handle_t *handle, uart_transfer_t *xfer);
AnnaBridge 171:3a7713b1edbc 663
AnnaBridge 171:3a7713b1edbc 664 /*!
AnnaBridge 171:3a7713b1edbc 665 * @brief Aborts the interrupt driven data transmit.
AnnaBridge 171:3a7713b1edbc 666 *
AnnaBridge 171:3a7713b1edbc 667 * This function aborts the interrupt driven data sending. The user can get the remainBytes to find out
AnnaBridge 171:3a7713b1edbc 668 * how many bytes are still not sent out.
AnnaBridge 171:3a7713b1edbc 669 *
AnnaBridge 171:3a7713b1edbc 670 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 671 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 672 */
AnnaBridge 171:3a7713b1edbc 673 void UART_TransferAbortSend(UART_Type *base, uart_handle_t *handle);
AnnaBridge 171:3a7713b1edbc 674
AnnaBridge 171:3a7713b1edbc 675 /*!
AnnaBridge 171:3a7713b1edbc 676 * @brief Get the number of bytes that have been written to UART TX register.
AnnaBridge 171:3a7713b1edbc 677 *
AnnaBridge 171:3a7713b1edbc 678 * This function gets the number of bytes that have been written to UART TX
AnnaBridge 171:3a7713b1edbc 679 * register by interrupt method.
AnnaBridge 171:3a7713b1edbc 680 *
AnnaBridge 171:3a7713b1edbc 681 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 682 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 683 * @param count Send bytes count.
AnnaBridge 171:3a7713b1edbc 684 * @retval kStatus_NoTransferInProgress No send in progress.
AnnaBridge 171:3a7713b1edbc 685 * @retval kStatus_InvalidArgument Parameter is invalid.
AnnaBridge 171:3a7713b1edbc 686 * @retval kStatus_Success Get successfully through the parameter \p count;
AnnaBridge 171:3a7713b1edbc 687 */
AnnaBridge 171:3a7713b1edbc 688 status_t UART_TransferGetSendCount(UART_Type *base, uart_handle_t *handle, uint32_t *count);
AnnaBridge 171:3a7713b1edbc 689
AnnaBridge 171:3a7713b1edbc 690 /*!
AnnaBridge 171:3a7713b1edbc 691 * @brief Receives a buffer of data using an interrupt method.
AnnaBridge 171:3a7713b1edbc 692 *
AnnaBridge 171:3a7713b1edbc 693 * This function receives data using an interrupt method. This is a non-blocking function, which
AnnaBridge 171:3a7713b1edbc 694 * returns without waiting for all data to be received.
AnnaBridge 171:3a7713b1edbc 695 * If the RX ring buffer is used and not empty, the data in the ring buffer is copied and
AnnaBridge 171:3a7713b1edbc 696 * the parameter @p receivedBytes shows how many bytes are copied from the ring buffer.
AnnaBridge 171:3a7713b1edbc 697 * After copying, if the data in the ring buffer is not enough to read, the receive
AnnaBridge 171:3a7713b1edbc 698 * request is saved by the UART driver. When the new data arrives, the receive request
AnnaBridge 171:3a7713b1edbc 699 * is serviced first. When all data is received, the UART driver notifies the upper layer
AnnaBridge 171:3a7713b1edbc 700 * through a callback function and passes the status parameter @ref kStatus_UART_RxIdle.
AnnaBridge 171:3a7713b1edbc 701 * For example, the upper layer needs 10 bytes but there are only 5 bytes in the ring buffer.
AnnaBridge 171:3a7713b1edbc 702 * The 5 bytes are copied to the xfer->data and this function returns with the
AnnaBridge 171:3a7713b1edbc 703 * parameter @p receivedBytes set to 5. For the left 5 bytes, newly arrived data is
AnnaBridge 171:3a7713b1edbc 704 * saved from the xfer->data[5]. When 5 bytes are received, the UART driver notifies the upper layer.
AnnaBridge 171:3a7713b1edbc 705 * If the RX ring buffer is not enabled, this function enables the RX and RX interrupt
AnnaBridge 171:3a7713b1edbc 706 * to receive data to the xfer->data. When all data is received, the upper layer is notified.
AnnaBridge 171:3a7713b1edbc 707 *
AnnaBridge 171:3a7713b1edbc 708 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 709 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 710 * @param xfer UART transfer structure, see #uart_transfer_t.
AnnaBridge 171:3a7713b1edbc 711 * @param receivedBytes Bytes received from the ring buffer directly.
AnnaBridge 171:3a7713b1edbc 712 * @retval kStatus_Success Successfully queue the transfer into transmit queue.
AnnaBridge 171:3a7713b1edbc 713 * @retval kStatus_UART_RxBusy Previous receive request is not finished.
AnnaBridge 171:3a7713b1edbc 714 * @retval kStatus_InvalidArgument Invalid argument.
AnnaBridge 171:3a7713b1edbc 715 */
AnnaBridge 171:3a7713b1edbc 716 status_t UART_TransferReceiveNonBlocking(UART_Type *base,
AnnaBridge 171:3a7713b1edbc 717 uart_handle_t *handle,
AnnaBridge 171:3a7713b1edbc 718 uart_transfer_t *xfer,
AnnaBridge 171:3a7713b1edbc 719 size_t *receivedBytes);
AnnaBridge 171:3a7713b1edbc 720
AnnaBridge 171:3a7713b1edbc 721 /*!
AnnaBridge 171:3a7713b1edbc 722 * @brief Aborts the interrupt-driven data receiving.
AnnaBridge 171:3a7713b1edbc 723 *
AnnaBridge 171:3a7713b1edbc 724 * This function aborts the interrupt-driven data receiving. The user can get the remainBytes to know
AnnaBridge 171:3a7713b1edbc 725 * how many bytes not received yet.
AnnaBridge 171:3a7713b1edbc 726 *
AnnaBridge 171:3a7713b1edbc 727 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 728 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 729 */
AnnaBridge 171:3a7713b1edbc 730 void UART_TransferAbortReceive(UART_Type *base, uart_handle_t *handle);
AnnaBridge 171:3a7713b1edbc 731
AnnaBridge 171:3a7713b1edbc 732 /*!
AnnaBridge 171:3a7713b1edbc 733 * @brief Get the number of bytes that have been received.
AnnaBridge 171:3a7713b1edbc 734 *
AnnaBridge 171:3a7713b1edbc 735 * This function gets the number of bytes that have been received.
AnnaBridge 171:3a7713b1edbc 736 *
AnnaBridge 171:3a7713b1edbc 737 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 738 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 739 * @param count Receive bytes count.
AnnaBridge 171:3a7713b1edbc 740 * @retval kStatus_NoTransferInProgress No receive in progress.
AnnaBridge 171:3a7713b1edbc 741 * @retval kStatus_InvalidArgument Parameter is invalid.
AnnaBridge 171:3a7713b1edbc 742 * @retval kStatus_Success Get successfully through the parameter \p count;
AnnaBridge 171:3a7713b1edbc 743 */
AnnaBridge 171:3a7713b1edbc 744 status_t UART_TransferGetReceiveCount(UART_Type *base, uart_handle_t *handle, uint32_t *count);
AnnaBridge 171:3a7713b1edbc 745
AnnaBridge 171:3a7713b1edbc 746 /*!
AnnaBridge 171:3a7713b1edbc 747 * @brief UART IRQ handle function.
AnnaBridge 171:3a7713b1edbc 748 *
AnnaBridge 171:3a7713b1edbc 749 * This function handles the UART transmit and receive IRQ request.
AnnaBridge 171:3a7713b1edbc 750 *
AnnaBridge 171:3a7713b1edbc 751 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 752 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 753 */
AnnaBridge 171:3a7713b1edbc 754 void UART_TransferHandleIRQ(UART_Type *base, uart_handle_t *handle);
AnnaBridge 171:3a7713b1edbc 755
AnnaBridge 171:3a7713b1edbc 756 /*!
AnnaBridge 171:3a7713b1edbc 757 * @brief UART Error IRQ handle function.
AnnaBridge 171:3a7713b1edbc 758 *
AnnaBridge 171:3a7713b1edbc 759 * This function handle the UART error IRQ request.
AnnaBridge 171:3a7713b1edbc 760 *
AnnaBridge 171:3a7713b1edbc 761 * @param base UART peripheral base address.
AnnaBridge 171:3a7713b1edbc 762 * @param handle UART handle pointer.
AnnaBridge 171:3a7713b1edbc 763 */
AnnaBridge 171:3a7713b1edbc 764 void UART_TransferHandleErrorIRQ(UART_Type *base, uart_handle_t *handle);
AnnaBridge 171:3a7713b1edbc 765
AnnaBridge 171:3a7713b1edbc 766 /* @} */
AnnaBridge 171:3a7713b1edbc 767
AnnaBridge 171:3a7713b1edbc 768 #if defined(__cplusplus)
AnnaBridge 171:3a7713b1edbc 769 }
AnnaBridge 171:3a7713b1edbc 770 #endif
AnnaBridge 171:3a7713b1edbc 771
AnnaBridge 171:3a7713b1edbc 772 /*! @}*/
AnnaBridge 171:3a7713b1edbc 773
AnnaBridge 171:3a7713b1edbc 774 #endif /* _FSL_UART_H_ */