| /* |
| * Copyright (c) 2015-2017, Texas Instruments Incorporated |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of Texas Instruments Incorporated nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /* |
| * ======== UART.c ======== |
| */ |
| |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include <ti/drivers/dpl/HwiP.h> |
| #include <ti/drivers/UART.h> |
| |
| extern const UART_Config UART_config[]; |
| extern const uint_least8_t UART_count; |
| |
| /* Default UART parameters structure */ |
| const UART_Params UART_defaultParams = { |
| UART_MODE_BLOCKING, /* readMode */ |
| UART_MODE_BLOCKING, /* writeMode */ |
| UART_WAIT_FOREVER, /* readTimeout */ |
| UART_WAIT_FOREVER, /* writeTimeout */ |
| NULL, /* readCallback */ |
| NULL, /* writeCallback */ |
| UART_RETURN_NEWLINE, /* readReturnMode */ |
| UART_DATA_TEXT, /* readDataMode */ |
| UART_DATA_TEXT, /* writeDataMode */ |
| UART_ECHO_ON, /* readEcho */ |
| 115200, /* baudRate */ |
| UART_LEN_8, /* dataLength */ |
| UART_STOP_ONE, /* stopBits */ |
| UART_PAR_NONE, /* parityType */ |
| NULL /* custom */ |
| }; |
| |
| static bool isInitialized = false; |
| |
| /* |
| * ======== UART_close ======== |
| */ |
| void UART_close(UART_Handle handle) |
| { |
| handle->fxnTablePtr->closeFxn(handle); |
| } |
| |
| /* |
| * ======== UART_control ======== |
| */ |
| int_fast16_t UART_control(UART_Handle handle, uint_fast16_t cmd, void *arg) |
| { |
| return (handle->fxnTablePtr->controlFxn(handle, cmd, arg)); |
| } |
| |
| /* |
| * ======== UART_init ======== |
| */ |
| void UART_init(void) |
| { |
| uint_least8_t i; |
| uint_fast32_t key; |
| |
| key = HwiP_disable(); |
| |
| if (!isInitialized) { |
| isInitialized = (bool) true; |
| |
| /* Call each driver's init function */ |
| for (i = 0; i < UART_count; i++) { |
| UART_config[i].fxnTablePtr->initFxn((UART_Handle) &(UART_config[i])); |
| } |
| } |
| |
| HwiP_restore(key); |
| } |
| |
| /* |
| * ======== UART_open ======== |
| */ |
| UART_Handle UART_open(uint_least8_t index, UART_Params *params) |
| { |
| UART_Handle handle = NULL; |
| |
| if (isInitialized && (index < UART_count)) { |
| /* If params are NULL use defaults */ |
| if (params == NULL) { |
| params = (UART_Params *) &UART_defaultParams; |
| } |
| |
| /* Get handle for this driver instance */ |
| handle = (UART_Handle)&(UART_config[index]); |
| handle = handle->fxnTablePtr->openFxn(handle, params); |
| } |
| |
| return (handle); |
| } |
| |
| /* |
| * ======== UART_Params_init ======== |
| */ |
| void UART_Params_init(UART_Params *params) |
| { |
| *params = UART_defaultParams; |
| } |
| |
| /* |
| * ======== UART_read ======== |
| */ |
| int_fast32_t UART_read(UART_Handle handle, void *buffer, size_t size) |
| { |
| return (handle->fxnTablePtr->readFxn(handle, buffer, size)); |
| } |
| |
| /* |
| * ======== UART_readPolling ======== |
| */ |
| int_fast32_t UART_readPolling(UART_Handle handle, void *buffer, size_t size) |
| { |
| return (handle->fxnTablePtr->readPollingFxn(handle, buffer, size)); |
| } |
| |
| /* |
| * ======== UART_readCancel ======== |
| */ |
| void UART_readCancel(UART_Handle handle) |
| { |
| handle->fxnTablePtr->readCancelFxn(handle); |
| } |
| |
| /* |
| * ======== UART_write ======== |
| */ |
| int_fast32_t UART_write(UART_Handle handle, const void *buffer, size_t size) |
| { |
| return (handle->fxnTablePtr->writeFxn(handle, buffer, size)); |
| } |
| |
| /* |
| * ======== UART_writePolling ======== |
| */ |
| int_fast32_t UART_writePolling(UART_Handle handle, const void *buffer, |
| size_t size) |
| { |
| return (handle->fxnTablePtr->writePollingFxn(handle, buffer, size)); |
| } |
| |
| /* |
| * ======== UART_writeCancel ======== |
| */ |
| void UART_writeCancel(UART_Handle handle) |
| { |
| handle->fxnTablePtr->writeCancelFxn(handle); |
| } |