// SPDX-License-Identifier: GPL-2.0 // // mcp251xfd - Microchip MCP251xFD Family CAN controller driver // // Copyright (c) 2019, 2020, 2021, 2023 Pengutronix, // Marc Kleine-Budde <[email protected]> // // Based on: // // CAN bus driver for Microchip 25XXFD CAN Controller with SPI Interface // // Copyright (c) 2019 Martin Sperl <[email protected]> // #include <asm/unaligned.h> #include <linux/bitfield.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/property.h> #include "mcp251xfd.h" #define DEVICE_NAME … static const struct mcp251xfd_devtype_data mcp251xfd_devtype_data_mcp2517fd = …; static const struct mcp251xfd_devtype_data mcp251xfd_devtype_data_mcp2518fd = …; static const struct mcp251xfd_devtype_data mcp251xfd_devtype_data_mcp251863 = …; /* Autodetect model, start with CRC enabled. */ static const struct mcp251xfd_devtype_data mcp251xfd_devtype_data_mcp251xfd = …; static const struct can_bittiming_const mcp251xfd_bittiming_const = …; static const struct can_bittiming_const mcp251xfd_data_bittiming_const = …; static const char *__mcp251xfd_get_model_str(enum mcp251xfd_model model) { … } static inline const char * mcp251xfd_get_model_str(const struct mcp251xfd_priv *priv) { … } static const char *mcp251xfd_get_mode_str(const u8 mode) { … } static const char * mcp251xfd_get_osc_str(const u32 osc, const u32 osc_reference) { … } static inline int mcp251xfd_vdd_enable(const struct mcp251xfd_priv *priv) { … } static inline int mcp251xfd_vdd_disable(const struct mcp251xfd_priv *priv) { … } static inline int mcp251xfd_transceiver_enable(const struct mcp251xfd_priv *priv) { … } static inline int mcp251xfd_transceiver_disable(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_clks_and_vdd_enable(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_clks_and_vdd_disable(const struct mcp251xfd_priv *priv) { … } static inline bool mcp251xfd_reg_invalid(u32 reg) { … } static inline int mcp251xfd_chip_get_mode(const struct mcp251xfd_priv *priv, u8 *mode) { … } static int __mcp251xfd_chip_set_mode(const struct mcp251xfd_priv *priv, const u8 mode_req, bool nowait) { … } static inline int mcp251xfd_chip_set_mode(const struct mcp251xfd_priv *priv, const u8 mode_req) { … } static inline int __maybe_unused mcp251xfd_chip_set_mode_nowait(const struct mcp251xfd_priv *priv, const u8 mode_req) { … } static int mcp251xfd_chip_wait_for_osc_ready(const struct mcp251xfd_priv *priv, u32 osc_reference, u32 osc_mask) { … } static int mcp251xfd_chip_wake(const struct mcp251xfd_priv *priv) { … } static inline int mcp251xfd_chip_sleep(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_softreset_do(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_softreset_check(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_softreset(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_clock_init(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_timestamp_init(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_set_bittiming(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_rx_int_enable(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_rx_int_disable(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_ecc_init(struct mcp251xfd_priv *priv) { … } static u8 mcp251xfd_get_normal_mode(const struct mcp251xfd_priv *priv) { … } static int __mcp251xfd_chip_set_normal_mode(const struct mcp251xfd_priv *priv, bool nowait) { … } static inline int mcp251xfd_chip_set_normal_mode(const struct mcp251xfd_priv *priv) { … } static inline int mcp251xfd_chip_set_normal_mode_nowait(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_interrupts_enable(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_chip_interrupts_disable(const struct mcp251xfd_priv *priv) { … } static void mcp251xfd_chip_stop(struct mcp251xfd_priv *priv, const enum can_state state) { … } static int mcp251xfd_chip_start(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_set_mode(struct net_device *ndev, enum can_mode mode) { … } static int __mcp251xfd_get_berr_counter(const struct net_device *ndev, struct can_berr_counter *bec) { … } static int mcp251xfd_get_berr_counter(const struct net_device *ndev, struct can_berr_counter *bec) { … } static struct sk_buff * mcp251xfd_alloc_can_err_skb(struct mcp251xfd_priv *priv, struct can_frame **cf, u32 *ts_raw) { … } static int mcp251xfd_handle_rxovif(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_handle_txatif(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_handle_ivmif(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_handle_cerrif(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_handle_modif(const struct mcp251xfd_priv *priv, bool *set_normal_mode) { … } static int mcp251xfd_handle_serrif(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_handle_eccif_recover(struct mcp251xfd_priv *priv, u8 nr) { … } static int mcp251xfd_handle_eccif(struct mcp251xfd_priv *priv, bool set_normal_mode) { … } static int mcp251xfd_handle_spicrcif(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_read_regs_status(struct mcp251xfd_priv *priv) { … } #define mcp251xfd_handle(priv, irq, ...) … static irqreturn_t mcp251xfd_irq(int irq, void *dev_id) { … } static int mcp251xfd_open(struct net_device *ndev) { … } static int mcp251xfd_stop(struct net_device *ndev) { … } static const struct net_device_ops mcp251xfd_netdev_ops = …; static void mcp251xfd_register_quirks(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_register_chip_detect(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_register_check_rx_int(struct mcp251xfd_priv *priv) { … } static int mcp251xfd_register_get_dev_id(const struct mcp251xfd_priv *priv, u32 *dev_id, u32 *effective_speed_hz_slow, u32 *effective_speed_hz_fast) { … } #define MCP251XFD_QUIRK_ACTIVE(quirk) … static int mcp251xfd_register_done(const struct mcp251xfd_priv *priv) { … } static int mcp251xfd_register(struct mcp251xfd_priv *priv) { … } static inline void mcp251xfd_unregister(struct mcp251xfd_priv *priv) { … } static const struct of_device_id mcp251xfd_of_match[] = …; MODULE_DEVICE_TABLE(of, mcp251xfd_of_match); static const struct spi_device_id mcp251xfd_id_table[] = …; MODULE_DEVICE_TABLE(spi, mcp251xfd_id_table); static int mcp251xfd_probe(struct spi_device *spi) { … } static void mcp251xfd_remove(struct spi_device *spi) { … } static int __maybe_unused mcp251xfd_runtime_suspend(struct device *device) { … } static int __maybe_unused mcp251xfd_runtime_resume(struct device *device) { … } static const struct dev_pm_ops mcp251xfd_pm_ops = …; static struct spi_driver mcp251xfd_driver = …; module_spi_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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