diff options
Diffstat (limited to 'os/hal/platforms/STM32/can_lld.h')
| -rw-r--r-- | os/hal/platforms/STM32/can_lld.h | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/os/hal/platforms/STM32/can_lld.h b/os/hal/platforms/STM32/can_lld.h deleted file mode 100644 index c339c01e7..000000000 --- a/os/hal/platforms/STM32/can_lld.h +++ /dev/null @@ -1,366 +0,0 @@ -/*
- 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 STM32/can_lld.h
- * @brief STM32 CAN subsystem low level driver header.
- *
- * @addtogroup CAN
- * @{
- */
-
-#ifndef _CAN_LLD_H_
-#define _CAN_LLD_H_
-
-#if HAL_USE_CAN || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver constants. */
-/*===========================================================================*/
-
-/*
- * The following macros from the ST header file are replaced with better
- * equivalents.
- */
-#undef CAN_BTR_BRP
-#undef CAN_BTR_TS1
-#undef CAN_BTR_TS2
-#undef CAN_BTR_SJW
-
-/**
- * @brief This switch defines whether the driver implementation supports
- * a low power switch mode with automatic an wakeup feature.
- */
-#define CAN_SUPPORTS_SLEEP TRUE
-
-/**
- * @brief This implementation supports three transmit mailboxes.
- */
-#define CAN_TX_MAILBOXES 3
-
-/**
- * @brief This implementation supports two receive mailboxes.
- */
-#define CAN_RX_MAILBOXES 2
-
-/**
- * @name CAN registers helper macros
- * @{
- */
-#define CAN_BTR_BRP(n) (n) /**< @brief BRP field macro.*/
-#define CAN_BTR_TS1(n) ((n) << 16) /**< @brief TS1 field macro.*/
-#define CAN_BTR_TS2(n) ((n) << 20) /**< @brief TS2 field macro.*/
-#define CAN_BTR_SJW(n) ((n) << 24) /**< @brief SJW field macro.*/
-
-#define CAN_IDE_STD 0 /**< @brief Standard id. */
-#define CAN_IDE_EXT 1 /**< @brief Extended id. */
-
-#define CAN_RTR_DATA 0 /**< @brief Data frame. */
-#define CAN_RTR_REMOTE 1 /**< @brief Remote frame. */
-/** @} */
-
-/*===========================================================================*/
-/* Driver pre-compile time settings. */
-/*===========================================================================*/
-
-/**
- * @name Configuration options
- * @{
- */
-/**
- * @brief CAN1 driver enable switch.
- * @details If set to @p TRUE the support for CAN1 is included.
- */
-#if !defined(STM32_CAN_USE_CAN1) || defined(__DOXYGEN__)
-#define STM32_CAN_USE_CAN1 FALSE
-#endif
-
-/**
- * @brief CAN2 driver enable switch.
- * @details If set to @p TRUE the support for CAN2 is included.
- */
-#if !defined(STM32_CAN_USE_CAN2) || defined(__DOXYGEN__)
-#define STM32_CAN_USE_CAN2 FALSE
-#endif
-
-/**
- * @brief CAN1 interrupt priority level setting.
- */
-#if !defined(STM32_CAN_CAN1_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define STM32_CAN_CAN1_IRQ_PRIORITY 11
-#endif
-/** @} */
-
-/**
- * @brief CAN2 interrupt priority level setting.
- */
-#if !defined(STM32_CAN_CAN2_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define STM32_CAN_CAN2_IRQ_PRIORITY 11
-#endif
-/** @} */
-
-/*===========================================================================*/
-/* Derived constants and error checks. */
-/*===========================================================================*/
-
-#if STM32_CAN_USE_CAN1 && !STM32_HAS_CAN1
-#error "CAN1 not present in the selected device"
-#endif
-
-#if STM32_CAN_USE_CAN2 && !STM32_HAS_CAN2
-#error "CAN2 not present in the selected device"
-#endif
-
-#if !STM32_CAN_USE_CAN1 && !STM32_CAN_USE_CAN2
-#error "CAN driver activated but no CAN peripheral assigned"
-#endif
-
-#if !STM32_CAN_USE_CAN1 && STM32_CAN_USE_CAN2
-#error "CAN2 requires CAN1, it cannot operate independently"
-#endif
-
-#if CAN_USE_SLEEP_MODE && !CAN_SUPPORTS_SLEEP
-#error "CAN sleep mode not supported in this architecture"
-#endif
-
-/*===========================================================================*/
-/* Driver data structures and types. */
-/*===========================================================================*/
-
-/**
- * @brief Type of a transmission mailbox index.
- */
-typedef uint32_t canmbx_t;
-
-/**
- * @brief CAN transmission frame.
- * @note Accessing the frame data as word16 or word32 is not portable because
- * machine data endianness, it can be still useful for a quick filling.
- */
-typedef struct {
- struct {
- uint8_t DLC:4; /**< @brief Data length. */
- uint8_t RTR:1; /**< @brief Frame type. */
- uint8_t IDE:1; /**< @brief Identifier type. */
- };
- union {
- struct {
- uint32_t SID:11; /**< @brief Standard identifier.*/
- };
- struct {
- uint32_t EID:29; /**< @brief Extended identifier.*/
- };
- };
- union {
- uint8_t data8[8]; /**< @brief Frame data. */
- uint16_t data16[4]; /**< @brief Frame data. */
- uint32_t data32[2]; /**< @brief Frame data. */
- };
-} CANTxFrame;
-
-/**
- * @brief CAN received frame.
- * @note Accessing the frame data as word16 or word32 is not portable because
- * machine data endianness, it can be still useful for a quick filling.
- */
-typedef struct {
- struct {
- uint8_t FMI; /**< @brief Filter id. */
- uint16_t TIME; /**< @brief Time stamp. */
- };
- struct {
- uint8_t DLC:4; /**< @brief Data length. */
- uint8_t RTR:1; /**< @brief Frame type. */
- uint8_t IDE:1; /**< @brief Identifier type. */
- };
- union {
- struct {
- uint32_t SID:11; /**< @brief Standard identifier.*/
- };
- struct {
- uint32_t EID:29; /**< @brief Extended identifier.*/
- };
- };
- union {
- uint8_t data8[8]; /**< @brief Frame data. */
- uint16_t data16[4]; /**< @brief Frame data. */
- uint32_t data32[2]; /**< @brief Frame data. */
- };
-} CANRxFrame;
-
-/**
- * @brief CAN filter.
- * @note Refer to the STM32 reference manual for info about filters.
- */
-typedef struct {
- /**
- * @brief Number of the filter to be programmed.
- */
- uint32_t filter;
- /**
- * @brief Filter mode.
- * @note This bit represent the CAN_FM1R register bit associated to this
- * filter (0=mask mode, 1=list mode).
- */
- uint32_t mode:1;
- /**
- * @brief Filter scale.
- * @note This bit represent the CAN_FS1R register bit associated to this
- * filter (0=16 bits mode, 1=32 bits mode).
- */
- uint32_t scale:1;
- /**
- * @brief Filter mode.
- * @note This bit represent the CAN_FFA1R register bit associated to this
- * filter, must be set to zero in this version of the driver.
- */
- uint32_t assignment:1;
- /**
- * @brief Filter register 1 (identifier).
- */
- uint32_t register1;
- /**
- * @brief Filter register 2 (mask/identifier depending on mode=0/1).
- */
- uint32_t register2;
-} CANFilter;
-
-/**
- * @brief Driver configuration structure.
- */
-typedef struct {
- /**
- * @brief CAN MCR register initialization data.
- * @note Some bits in this register are enforced by the driver regardless
- * their status in this field.
- */
- uint32_t mcr;
- /**
- * @brief CAN BTR register initialization data.
- * @note Some bits in this register are enforced by the driver regardless
- * their status in this field.
- */
- uint32_t btr;
-} CANConfig;
-
-/**
- * @brief Structure representing an CAN driver.
- */
-typedef struct {
- /**
- * @brief Driver state.
- */
- canstate_t state;
- /**
- * @brief Current configuration data.
- */
- const CANConfig *config;
- /**
- * @brief Transmission queue semaphore.
- */
- Semaphore txsem;
- /**
- * @brief Receive queue semaphore.
- */
- Semaphore rxsem;
- /**
- * @brief One or more frames become available.
- * @note After broadcasting this event it will not be broadcasted again
- * until the received frames queue has been completely emptied. It
- * is <b>not</b> broadcasted for each received frame. It is
- * responsibility of the application to empty the queue by
- * repeatedly invoking @p chReceive() when listening to this event.
- * This behavior minimizes the interrupt served by the system
- * because CAN traffic.
- * @note The flags associated to the listeners will indicate which
- * receive mailboxes become non-empty.
- */
- EventSource rxfull_event;
- /**
- * @brief One or more transmission mailbox become available.
- * @note The flags associated to the listeners will indicate which
- * transmit mailboxes become empty.
- *
- */
- EventSource txempty_event;
- /**
- * @brief A CAN bus error happened.
- * @note The flags associated to the listeners will indicate the
- * error(s) that have occurred.
- */
- EventSource error_event;
-#if CAN_USE_SLEEP_MODE || defined (__DOXYGEN__)
- /**
- * @brief Entering sleep state event.
- */
- EventSource sleep_event;
- /**
- * @brief Exiting sleep state event.
- */
- EventSource wakeup_event;
-#endif /* CAN_USE_SLEEP_MODE */
- /* End of the mandatory fields.*/
- /**
- * @brief Pointer to the CAN registers.
- */
- CAN_TypeDef *can;
-} CANDriver;
-
-/*===========================================================================*/
-/* Driver macros. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* External declarations. */
-/*===========================================================================*/
-
-#if STM32_CAN_USE_CAN1 && !defined(__DOXYGEN__)
-extern CANDriver CAND1;
-#endif
-
-#if STM32_CAN_USE_CAN2 && !defined(__DOXYGEN__)
-extern CANDriver CAND2;
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void can_lld_init(void);
- void can_lld_start(CANDriver *canp);
- void can_lld_stop(CANDriver *canp);
- bool_t can_lld_is_tx_empty(CANDriver *canp,
- canmbx_t mailbox);
- void can_lld_transmit(CANDriver *canp,
- canmbx_t mailbox,
- const CANTxFrame *crfp);
- bool_t can_lld_is_rx_nonempty(CANDriver *canp,
- canmbx_t mailbox);
- void can_lld_receive(CANDriver *canp,
- canmbx_t mailbox,
- CANRxFrame *ctfp);
-#if CAN_USE_SLEEP_MODE
- void can_lld_sleep(CANDriver *canp);
- void can_lld_wakeup(CANDriver *canp);
-#endif /* CAN_USE_SLEEP_MODE */
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* HAL_USE_CAN */
-
-#endif /* _CAN_LLD_H_ */
-
-/** @} */
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