tcan4x5x.h (1123B)
1/* SPDX-License-Identifier: GPL-2.0 2 * 3 * tcan4x5x - Texas Instruments TCAN4x5x Family CAN controller driver 4 * 5 * Copyright (c) 2020 Pengutronix, 6 * Marc Kleine-Budde <kernel@pengutronix.de> 7 */ 8 9#ifndef _TCAN4X5X_H 10#define _TCAN4X5X_H 11 12#include <linux/gpio/consumer.h> 13#include <linux/regmap.h> 14#include <linux/regulator/consumer.h> 15#include <linux/spi/spi.h> 16 17#include "m_can.h" 18 19#define TCAN4X5X_SANITIZE_SPI 1 20 21struct __packed tcan4x5x_buf_cmd { 22 u8 cmd; 23 __be16 addr; 24 u8 len; 25}; 26 27struct tcan4x5x_map_buf { 28 struct tcan4x5x_buf_cmd cmd; 29 u8 data[256 * sizeof(u32)]; 30} ____cacheline_aligned; 31 32struct tcan4x5x_priv { 33 struct m_can_classdev cdev; 34 35 struct regmap *regmap; 36 struct spi_device *spi; 37 38 struct gpio_desc *reset_gpio; 39 struct gpio_desc *device_wake_gpio; 40 struct gpio_desc *device_state_gpio; 41 struct regulator *power; 42 43 struct tcan4x5x_map_buf map_buf_rx; 44 struct tcan4x5x_map_buf map_buf_tx; 45}; 46 47static inline void 48tcan4x5x_spi_cmd_set_len(struct tcan4x5x_buf_cmd *cmd, u8 len) 49{ 50 /* number of u32 */ 51 cmd->len = len >> 2; 52} 53 54int tcan4x5x_regmap_init(struct tcan4x5x_priv *priv); 55 56#endif