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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (c) 2023, Intel Corporation.4 * Intel Visual Sensing Controller Transport Layer Linux driver5 */6 7#ifndef _VSC_TP_H_8#define _VSC_TP_H_9 10#include <linux/types.h>11 12#define VSC_TP_CMD_WRITE 0x0113#define VSC_TP_CMD_READ 0x0214 15#define VSC_TP_CMD_ACK 0x1016#define VSC_TP_CMD_NACK 0x1117#define VSC_TP_CMD_BUSY 0x1218 19struct vsc_tp;20 21/**22 * typedef vsc_event_cb_t - event callback function signature23 * @context: the execution context of who registered this callback24 *25 * The callback function is called in interrupt context and the data26 * payload is only valid during the call. If the user needs access27 * the data payload later, it must copy the payload.28 */29typedef void (*vsc_tp_event_cb_t)(void *context);30 31int vsc_tp_rom_xfer(struct vsc_tp *tp, const void *obuf, void *ibuf,32 size_t len);33 34int vsc_tp_xfer(struct vsc_tp *tp, u8 cmd, const void *obuf, size_t olen,35 void *ibuf, size_t ilen);36 37int vsc_tp_register_event_cb(struct vsc_tp *tp, vsc_tp_event_cb_t event_cb,38 void *context);39 40int vsc_tp_request_irq(struct vsc_tp *tp);41void vsc_tp_free_irq(struct vsc_tp *tp);42 43void vsc_tp_intr_enable(struct vsc_tp *tp);44void vsc_tp_intr_disable(struct vsc_tp *tp);45void vsc_tp_intr_synchronize(struct vsc_tp *tp);46 47void vsc_tp_reset(struct vsc_tp *tp);48 49bool vsc_tp_need_read(struct vsc_tp *tp);50 51int vsc_tp_init(struct vsc_tp *tp, struct device *dev);52 53#endif54