/* * 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_ */ /** @} */