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/*
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 RX62N/serial_lld.h
* @brief RX62N low level serial driver header.
*
* @addtogroup SERIAL
* @{
*/
#ifndef _SERIAL_LLD_H_
#define _SERIAL_LLD_H_
#if HAL_USE_SERIAL || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
#define SSR_ORER (1<<5)
#define SSR_FER (1<<4)
#define SSR_PER (1<<3)
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief UART0 driver enable switch.
* @details If set to @p TRUE the support for UART0 is included.
* @note The default is @p TRUE .
*/
#if !defined(RX62N_SERIAL_USE_UART0) || defined(__DOXYGEN__)
#define RX62N_SERIAL_USE_UART0 FALSE
#endif
/**
* @brief UART0 PCLK divider.
*/
#if !defined(RX62N_SERIAL_UART0CLKDIV) || defined(__DOXYGEN__)
#define RX62N_SERIAL_UART0CLKDIV 1
#endif
/**
* @brief UART0 interrupt priority level setting.
*/
#if !defined(RX62N_SERIAL_UART0_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define RX62N_SERIAL_UART0_IRQ_PRIORITY 3
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief RX62N8 Serial Driver configuration structure.
* @details An instance of this structure must be passed to @p sdStart()
* in order to configure and start a serial driver operations.
*/
typedef struct {
/**
* @brief Bit rate.
*/
uint32_t sc_speed;
/**
* @brief Initialization value for the SCR register.
*/
uint8_t sc_scr;
/**
* @brief Initialization value for the SMR register.
*/
uint8_t sc_smr;
/**
* @brief Initialization value for the SEMR register.
*/
uint8_t sc_semr;
} SerialConfig;
/**
* @brief @p SerialDriver specific data.
*/
#define _serial_driver_data \
_base_asynchronous_channel_data \
/* Driver state.*/ \
sdstate_t state; \
/* Input queue.*/ \
InputQueue iqueue; \
/* Output queue.*/ \
OutputQueue oqueue; \
/* Input circular buffer.*/ \
uint8_t ib[SERIAL_BUFFERS_SIZE]; \
/* Output circular buffer.*/ \
uint8_t ob[SERIAL_BUFFERS_SIZE]; \
/* End of the mandatory fields.*/ \
/* Pointer to the USART registers block.*/ \
volatile struct st_sci *uart;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if RX62N_SERIAL_USE_UART0 && !defined(__DOXYGEN__)
extern SerialDriver SD1;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void sd_lld_init(void);
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
void sd_lld_stop(SerialDriver *sdp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_SERIAL */
#endif /* _SERIAL_LLD_H_ */
/** @} */
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