62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright (c) 2018 Alexander Wachter
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_CAN_STM32_H_
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#define ZEPHYR_DRIVERS_CAN_STM32_H_
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#include <zephyr/drivers/can.h>
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#define CAN_STM32_NUM_FILTER_BANKS (14)
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#define CAN_STM32_MAX_FILTER_ID \
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(CONFIG_CAN_MAX_EXT_ID_FILTER + CONFIG_CAN_MAX_STD_ID_FILTER * 2)
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#define CAN_STM32_FIRX_STD_IDE_POS (3U)
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#define CAN_STM32_FIRX_STD_RTR_POS (4U)
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#define CAN_STM32_FIRX_STD_ID_POS (5U)
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#define CAN_STM32_FIRX_EXT_IDE_POS (2U)
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#define CAN_STM32_FIRX_EXT_RTR_POS (1U)
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#define CAN_STM32_FIRX_EXT_STD_ID_POS (21U)
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#define CAN_STM32_FIRX_EXT_EXT_ID_POS (3U)
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struct can_stm32_mailbox {
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can_tx_callback_t tx_callback;
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void *callback_arg;
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};
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struct can_stm32_data {
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struct k_mutex inst_mutex;
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struct k_sem tx_int_sem;
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struct can_stm32_mailbox mb0;
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struct can_stm32_mailbox mb1;
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struct can_stm32_mailbox mb2;
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can_rx_callback_t rx_cb_std[CONFIG_CAN_MAX_STD_ID_FILTER];
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can_rx_callback_t rx_cb_ext[CONFIG_CAN_MAX_EXT_ID_FILTER];
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void *cb_arg_std[CONFIG_CAN_MAX_STD_ID_FILTER];
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void *cb_arg_ext[CONFIG_CAN_MAX_EXT_ID_FILTER];
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can_state_change_callback_t state_change_cb;
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void *state_change_cb_data;
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enum can_state state;
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bool started;
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};
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struct can_stm32_config {
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CAN_TypeDef *can; /*!< CAN Registers*/
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CAN_TypeDef *master_can; /*!< CAN Registers for shared filter */
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uint32_t bus_speed;
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uint16_t sample_point;
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uint8_t sjw;
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uint8_t prop_ts1;
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uint8_t ts2;
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struct stm32_pclken pclken;
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void (*config_irq)(CAN_TypeDef *can);
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const struct pinctrl_dev_config *pcfg;
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const struct device *phy;
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uint32_t max_bitrate;
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};
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#endif /* ZEPHYR_DRIVERS_CAN_STM32_H_ */
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