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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2023, Intel Corporation.
* Intel Visual Sensing Controller Transport Layer Linux driver
*/
#ifndef _VSC_TP_H_
#define _VSC_TP_H_
#include <linux/types.h>
#define VSC_TP_CMD_WRITE 0x01
#define VSC_TP_CMD_READ 0x02
#define VSC_TP_CMD_ACK 0x10
#define VSC_TP_CMD_NACK 0x11
#define VSC_TP_CMD_BUSY 0x12
struct vsc_tp;
/**
* typedef vsc_event_cb_t - event callback function signature
* @context: the execution context of who registered this callback
*
* The callback function is called in interrupt context and the data
* payload is only valid during the call. If the user needs access
* the data payload later, it must copy the payload.
*/
typedef void (*vsc_tp_event_cb_t)(void *context);
int vsc_tp_rom_xfer(struct vsc_tp *tp, const void *obuf, void *ibuf,
size_t len);
int vsc_tp_xfer(struct vsc_tp *tp, u8 cmd, const void *obuf, size_t olen,
void *ibuf, size_t ilen);
int vsc_tp_register_event_cb(struct vsc_tp *tp, vsc_tp_event_cb_t event_cb,
void *context);
int vsc_tp_request_irq(struct vsc_tp *tp);
void vsc_tp_free_irq(struct vsc_tp *tp);
void vsc_tp_intr_enable(struct vsc_tp *tp);
void vsc_tp_intr_disable(struct vsc_tp *tp);
void vsc_tp_intr_synchronize(struct vsc_tp *tp);
void vsc_tp_reset(struct vsc_tp *tp);
bool vsc_tp_need_read(struct vsc_tp *tp);
int vsc_tp_init(struct vsc_tp *tp, struct device *dev);
#endif
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