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ChibiOS/os/hal/platforms/SPC5xx/LINFlex_v1/serial_lld.h

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/*
* Licensed under ST Liberty SW License Agreement V2, (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.st.com/software_license_agreement_liberty_v2
*
* 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 SPC5xx/LINFlex_v1/serial_lld.h
* @brief SPC5xx low level serial driver header.
*
* @addtogroup SERIAL
* @{
*/
#ifndef _SERIAL_LLD_H_
#define _SERIAL_LLD_H_
#if HAL_USE_SERIAL || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name LINIER register bits definitions
* @{
*/
#define SPC5_LINIER_HRIE (1U << 0)
#define SPC5_LINIER_DTIE (1U << 1)
#define SPC5_LINIER_DRIE (1U << 2)
#define SPC5_LINIER_DBEIE (1U << 3)
#define SPC5_LINIER_DBFIE (1U << 4)
#define SPC5_LINIER_WUIE (1U << 5)
#define SPC5_LINIER_LSIE (1U << 6)
#define SPC5_LINIER_BOIE (1U << 7)
#define SPC5_LINIER_FEIE (1U << 8)
#define SPC5_LINIER_HEIE (1U << 11)
#define SPC5_LINIER_CEIE (1U << 12)
#define SPC5_LINIER_BEIE (1U << 13)
#define SPC5_LINIER_OCIE (1U << 14)
#define SPC5_LINIER_SZIE (1U << 15)
/** @} */
/**
* @name UARTSR register bits definitions
* @{
*/
#define SPC5_UARTSR_NF (1U << 0)
#define SPC5_UARTSR_DTF (1U << 1)
#define SPC5_UARTSR_DRF (1U << 2)
#define SPC5_UARTSR_WUF (1U << 5)
#define SPC5_UARTSR_RPS (1U << 6)
#define SPC5_UARTSR_BOF (1U << 7)
#define SPC5_UARTSR_FEF (1U << 8)
#define SPC5_UARTSR_RMB (1U << 9)
#define SPC5_UARTSR_PE0 (1U << 10)
#define SPC5_UARTSR_PE1 (1U << 11)
#define SPC5_UARTSR_PE2 (1U << 12)
#define SPC5_UARTSR_PE3 (1U << 13)
#define SPC5_UARTSR_OCF (1U << 14)
#define SPC5_UARTSR_SZF (1U << 15)
/** @} */
/**
* @name UARTCR register bits definitions
* @{
*/
#define SPC5_UARTCR_UART (1U << 0)
#define SPC5_UARTCR_WL (1U << 1)
#define SPC5_UARTCR_PCE (1U << 2)
#define SPC5_UARTCR_OP (1U << 3)
#define SPC5_UARTCR_TXEN (1U << 4)
#define SPC5_UARTCR_RXEN (1U << 5)
/** @} */
/**
* @name Serial driver allowable modes
* @{
*/
#define SD_MODE_8BITS_PARITY_NONE (SPC5_UARTCR_WL)
#define SD_MODE_8BITS_PARITY_EVEN (SPC5_UARTCR_WL | \
SPC5_UARTCR_PCE)
#define SD_MODE_8BITS_PARITY_ODD (SPC5_UARTCR_WL | \
SPC5_UARTCR_PCE | \
SPC5_UARTCR_OP)
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief LINFlex-0 driver enable switch.
* @details If set to @p TRUE the support for LINFlex-0 is included.
*/
#if !defined(SPC5_SERIAL_USE_LINFLEX0) || defined(__DOXYGEN__)
#define SPC5_SERIAL_USE_LINFLEX0 TRUE
#endif
/**
* @brief LINFlex-1 driver enable switch.
* @details If set to @p TRUE the support for LINFlex-1 is included.
*/
#if !defined(SPC5_SERIAL_USE_LINFLEX1) || defined(__DOXYGEN__)
#define SPC5_SERIAL_USE_LINFLEX1 TRUE
#endif
/**
* @brief LINFlex-0 interrupt priority level setting.
*/
#if !defined(SPC5_SERIAL_LINFLEX0_PRIORITY) || defined(__DOXYGEN__)
#define SPC5_SERIAL_LINFLEX0_PRIORITY 8
#endif
/**
* @brief LINFlex-1 interrupt priority level setting.
*/
#if !defined(SPC5_SERIAL_LINFLEX1_PRIORITY) || defined(__DOXYGEN__)
#define SPC5_SERIAL_LINFLEX1_PRIORITY 8
#endif
/**
* @brief LINFlex-0 peripheral configuration when started.
* @note The default configuration is 1 (always run) in run mode and
* 2 (only halt) in low power mode. The defaults of the run modes
* are defined in @p hal_lld.h.
*/
#if !defined(SPC5_SERIAL_LINFLEX0_START_PCTL) || defined(__DOXYGEN__)
#define SPC5_SERIAL_LINFLEX0_START_PCTL (SPC5_ME_PCTL_RUN(1) | \
SPC5_ME_PCTL_LP(2))
#endif
/**
* @brief LINFlex-0 peripheral configuration when stopped.
* @note The default configuration is 0 (never run) in run mode and
* 0 (never run) in low power mode. The defaults of the run modes
* are defined in @p hal_lld.h.
*/
#if !defined(SPC5_SERIAL_LINFLEX0_STOP_PCTL) || defined(__DOXYGEN__)
#define SPC5_SERIAL_LINFLEX0_STOP_PCTL (SPC5_ME_PCTL_RUN(0) | \
SPC5_ME_PCTL_LP(0))
#endif
/**
* @brief LINFlex-1 peripheral configuration when started.
* @note The default configuration is 1 (always run) in run mode and
* 2 (only halt) in low power mode. The defaults of the run modes
* are defined in @p hal_lld.h.
*/
#if !defined(SPC5_SERIAL_LINFLEX1_START_PCTL) || defined(__DOXYGEN__)
#define SPC5_SERIAL_LINFLEX1_START_PCTL (SPC5_ME_PCTL_RUN(1) | \
SPC5_ME_PCTL_LP(2))
#endif
/**
* @brief LINFlex-1 peripheral configuration when stopped.
* @note The default configuration is 0 (never run) in run mode and
* 0 (never run) in low power mode. The defaults of the run modes
* are defined in @p hal_lld.h.
*/
#if !defined(SPC5_SERIAL_LINFLEX1_STOP_PCTL) || defined(__DOXYGEN__)
#define SPC5_SERIAL_LINFLEX1_STOP_PCTL (SPC5_ME_PCTL_RUN(0) | \
SPC5_ME_PCTL_LP(0))
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if SPC5_SERIAL_USE_LINFLEX0 && !SPC5_HAS_LINFLEX0
#error "LINFlex-0 not present in the selected device"
#endif
#if SPC5_SERIAL_USE_LINFLEX1 && !SPC5_HAS_LINFLEX1
#error "LINFlex-1 not present in the selected device"
#endif
#if SPC5_SERIAL_USE_LINFLEX2 && !SPC5_HAS_LINFLEX2
#error "LINFlex-2 not present in the selected device"
#endif
#if SPC5_SERIAL_USE_LINFLEX3 && !SPC5_HAS_LINFLEX3
#error "LINFlex-3 not present in the selected device"
#endif
#if !SPC5_SERIAL_USE_LINFLEX0 && !SPC5_SERIAL_USE_LINFLEX1 && \
!SPC5_SERIAL_USE_LINFLEX2 && !SPC5_SERIAL_USE_LINFLEX3
#error "SERIAL driver activated but no LINFlex peripheral assigned"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Generic 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.
* @note This structure content is architecture dependent, each driver
* implementation defines its own version and the custom static
* initializers.
*/
typedef struct {
/**
* @brief Bit rate.
*/
uint32_t speed;
/**
* @brief Mode flags.
*/
uint8_t mode;
} 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 volatile LINFlex registers block.*/ \
volatile struct LINFLEX_tag *linflexp;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if SPC5_SERIAL_USE_LINFLEX0 && !defined(__DOXYGEN__)
extern SerialDriver SD1;
#endif
#if SPC5_SERIAL_USE_LINFLEX1 && !defined(__DOXYGEN__)
extern SerialDriver SD2;
#endif
#if SPC5_SERIAL_USE_LINFLEX2 && !defined(__DOXYGEN__)
extern SerialDriver SD3;
#endif
#if SPC5_SERIAL_USE_LINFLEX3 && !defined(__DOXYGEN__)
extern SerialDriver SD4;
#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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