108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* CAN bus driver for Bosch M_CAN controller
|
|
* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
|
|
*/
|
|
|
|
#ifndef _CAN_M_CAN_H_
|
|
#define _CAN_M_CAN_H_
|
|
|
|
#include <linux/can/core.h>
|
|
#include <linux/can/dev.h>
|
|
#include <linux/can/rx-offload.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/device.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/freezer.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/io.h>
|
|
#include <linux/iopoll.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/phy/phy.h>
|
|
#include <linux/pinctrl/consumer.h>
|
|
#include <linux/pm_runtime.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
/* m_can lec values */
|
|
enum m_can_lec_type {
|
|
LEC_NO_ERROR = 0,
|
|
LEC_STUFF_ERROR,
|
|
LEC_FORM_ERROR,
|
|
LEC_ACK_ERROR,
|
|
LEC_BIT1_ERROR,
|
|
LEC_BIT0_ERROR,
|
|
LEC_CRC_ERROR,
|
|
LEC_NO_CHANGE,
|
|
};
|
|
|
|
enum m_can_mram_cfg {
|
|
MRAM_SIDF = 0,
|
|
MRAM_XIDF,
|
|
MRAM_RXF0,
|
|
MRAM_RXF1,
|
|
MRAM_RXB,
|
|
MRAM_TXE,
|
|
MRAM_TXB,
|
|
MRAM_CFG_NUM,
|
|
};
|
|
|
|
/* address offset and element number for each FIFO/Buffer in the Message RAM */
|
|
struct mram_cfg {
|
|
u16 off;
|
|
u8 num;
|
|
};
|
|
|
|
struct m_can_classdev;
|
|
struct m_can_ops {
|
|
/* Device specific call backs */
|
|
int (*clear_interrupts)(struct m_can_classdev *cdev);
|
|
u32 (*read_reg)(struct m_can_classdev *cdev, int reg);
|
|
int (*write_reg)(struct m_can_classdev *cdev, int reg, int val);
|
|
int (*read_fifo)(struct m_can_classdev *cdev, int addr_offset, void *val, size_t val_count);
|
|
int (*write_fifo)(struct m_can_classdev *cdev, int addr_offset,
|
|
const void *val, size_t val_count);
|
|
int (*init)(struct m_can_classdev *cdev);
|
|
};
|
|
|
|
struct m_can_classdev {
|
|
struct can_priv can;
|
|
struct can_rx_offload offload;
|
|
struct napi_struct napi;
|
|
struct net_device *net;
|
|
struct device *dev;
|
|
struct clk *hclk;
|
|
struct clk *cclk;
|
|
|
|
struct workqueue_struct *tx_wq;
|
|
struct work_struct tx_work;
|
|
struct sk_buff *tx_skb;
|
|
struct phy *transceiver;
|
|
|
|
struct m_can_ops *ops;
|
|
|
|
int version;
|
|
u32 irqstatus;
|
|
|
|
int pm_clock_support;
|
|
int is_peripheral;
|
|
|
|
struct mram_cfg mcfg[MRAM_CFG_NUM];
|
|
};
|
|
|
|
struct m_can_classdev *m_can_class_allocate_dev(struct device *dev, int sizeof_priv);
|
|
void m_can_class_free_dev(struct net_device *net);
|
|
int m_can_class_register(struct m_can_classdev *cdev);
|
|
void m_can_class_unregister(struct m_can_classdev *cdev);
|
|
int m_can_class_get_clocks(struct m_can_classdev *cdev);
|
|
int m_can_init_ram(struct m_can_classdev *priv);
|
|
|
|
int m_can_class_suspend(struct device *dev);
|
|
int m_can_class_resume(struct device *dev);
|
|
#endif /* _CAN_M_H_ */
|