193 lines
5.4 KiB
C
193 lines
5.4 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @file templates/uart_lld.c
|
|
* @brief UART Driver subsystem low level driver source template.
|
|
*
|
|
* @addtogroup UART
|
|
* @{
|
|
*/
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
|
|
#if HAL_USE_UART || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local definitions. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported variables. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief UART1 driver identifier.
|
|
*/
|
|
#if PLATFORM_UART_USE_UART1 || defined(__DOXYGEN__)
|
|
UARTDriver UARTD1;
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local variables and types. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local functions. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver interrupt handlers. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported functions. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Low level UART driver initialization.
|
|
*
|
|
* @notapi
|
|
*/
|
|
void uart_lld_init(void) {
|
|
|
|
#if PLATFORM_UART_USE_UART1
|
|
/* Driver initialization.*/
|
|
uartObjectInit(&UARTD1);
|
|
#endif /* PLATFORM_UART_USE_UART1 */
|
|
}
|
|
|
|
/**
|
|
* @brief Configures and activates the UART peripheral.
|
|
*
|
|
* @param[in] uartp pointer to the @p UARTDriver object
|
|
*
|
|
* @notapi
|
|
*/
|
|
void uart_lld_start(UARTDriver *uartp) {
|
|
|
|
if (uartp->state == UART_STOP) {
|
|
/* Enables the peripheral.*/
|
|
#if PLATFORM_UART_USE_UART1
|
|
if (&UARTD1 == uartp) {
|
|
|
|
}
|
|
#endif /* PLATFORM_UART_USE_UART1 */
|
|
}
|
|
/* Configures the peripheral.*/
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief Deactivates the UART peripheral.
|
|
*
|
|
* @param[in] uartp pointer to the @p UARTDriver object
|
|
*
|
|
* @notapi
|
|
*/
|
|
void uart_lld_stop(UARTDriver *uartp) {
|
|
|
|
if (uartp->state == UART_READY) {
|
|
/* Resets the peripheral.*/
|
|
|
|
/* Disables the peripheral.*/
|
|
#if PLATFORM_UART_USE_UART1
|
|
if (&UARTD1 == uartp) {
|
|
|
|
}
|
|
#endif /* PLATFORM_UART_USE_UART1 */
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Starts a transmission on the UART peripheral.
|
|
* @note The buffers are organized as uint8_t arrays for data sizes below
|
|
* or equal to 8 bits else it is organized as uint16_t arrays.
|
|
*
|
|
* @param[in] uartp pointer to the @p UARTDriver object
|
|
* @param[in] n number of data frames to send
|
|
* @param[in] txbuf the pointer to the transmit buffer
|
|
*
|
|
* @notapi
|
|
*/
|
|
void uart_lld_start_send(UARTDriver *uartp, size_t n, const void *txbuf) {
|
|
|
|
(void)uartp;
|
|
(void)n;
|
|
(void)txbuf;
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief Stops any ongoing transmission.
|
|
* @note Stopping a transmission also suppresses the transmission callbacks.
|
|
*
|
|
* @param[in] uartp pointer to the @p UARTDriver object
|
|
*
|
|
* @return The number of data frames not transmitted by the
|
|
* stopped transmit operation.
|
|
*
|
|
* @notapi
|
|
*/
|
|
size_t uart_lld_stop_send(UARTDriver *uartp) {
|
|
|
|
(void)uartp;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Starts a receive operation on the UART peripheral.
|
|
* @note The buffers are organized as uint8_t arrays for data sizes below
|
|
* or equal to 8 bits else it is organized as uint16_t arrays.
|
|
*
|
|
* @param[in] uartp pointer to the @p UARTDriver object
|
|
* @param[in] n number of data frames to send
|
|
* @param[out] rxbuf the pointer to the receive buffer
|
|
*
|
|
* @notapi
|
|
*/
|
|
void uart_lld_start_receive(UARTDriver *uartp, size_t n, void *rxbuf) {
|
|
|
|
(void)uartp;
|
|
(void)n;
|
|
(void)rxbuf;
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief Stops any ongoing receive operation.
|
|
* @note Stopping a receive operation also suppresses the receive callbacks.
|
|
*
|
|
* @param[in] uartp pointer to the @p UARTDriver object
|
|
*
|
|
* @return The number of data frames not received by the
|
|
* stopped receive operation.
|
|
*
|
|
* @notapi
|
|
*/
|
|
size_t uart_lld_stop_receive(UARTDriver *uartp) {
|
|
|
|
(void)uartp;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAL_USE_UART */
|
|
|
|
/** @} */
|