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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*******************************************************************************
*
* CTU CAN FD IP Core
*
* Copyright (C) 2015-2018 Ondrej Ille <ondrej.ille@gmail.com> FEE CTU
* Copyright (C) 2018-2021 Ondrej Ille <ondrej.ille@gmail.com> self-funded
* Copyright (C) 2018-2019 Martin Jerabek <martin.jerabek01@gmail.com> FEE CTU
* Copyright (C) 2018-2021 Pavel Pisa <pisa@cmp.felk.cvut.cz> FEE CTU/self-funded
*
* Project advisors:
* Jiri Novak <jnovak@fel.cvut.cz>
* Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Department of Measurement (http://meas.fel.cvut.cz/)
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
******************************************************************************/
#ifndef __CTUCANFD__
#define __CTUCANFD__
#include <linux/netdevice.h>
#include <linux/can/dev.h>
#include <linux/list.h>
enum ctu_can_fd_can_registers;
struct ctucan_priv {
struct can_priv can; /* must be first member! */
void __iomem *mem_base;
u32 (*read_reg)(struct ctucan_priv *priv,
enum ctu_can_fd_can_registers reg);
void (*write_reg)(struct ctucan_priv *priv,
enum ctu_can_fd_can_registers reg, u32 val);
unsigned int txb_head;
unsigned int txb_tail;
u32 txb_prio;
unsigned int ntxbufs;
spinlock_t tx_lock; /* spinlock to serialize allocation and processing of TX buffers */
struct napi_struct napi;
struct device *dev;
struct clk *can_clk;
int irq_flags;
unsigned long drv_flags;
u32 rxfrm_first_word;
struct list_head peers_on_pdev;
};
/**
* ctucan_probe_common - Device type independent registration call
*
* This function does all the memory allocation and registration for the CAN
* device.
*
* @dev: Handle to the generic device structure
* @addr: Base address of CTU CAN FD core address
* @irq: Interrupt number
* @ntxbufs: Number of implemented Tx buffers
* @can_clk_rate: Clock rate, if 0 then clock are taken from device node
* @pm_enable_call: Whether pm_runtime_enable should be called
* @set_drvdata_fnc: Function to set network driver data for physical device
*
* Return: 0 on success and failure value on error
*/
int ctucan_probe_common(struct device *dev, void __iomem *addr,
int irq, unsigned int ntxbufs,
unsigned long can_clk_rate,
int pm_enable_call,
void (*set_drvdata_fnc)(struct device *dev,
struct net_device *ndev));
int ctucan_suspend(struct device *dev) __maybe_unused;
int ctucan_resume(struct device *dev) __maybe_unused;
#endif /*__CTUCANFD__*/
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