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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/hid/amd-sfh-hid/amd_sfh_hid.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */

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/*

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 * AMD MP2 Sensors transport driver

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 *

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 * Copyright 2020-2021 Advanced Micro Devices, Inc.

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 * Authors: Nehal Bakulchandra Shah <[email protected]>

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 *	    Sandeep Singh <[email protected]>

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 *	    Basavaraj Natikar <[email protected]>

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 */

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#ifndef AMDSFH_HID_H

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#define AMDSFH_HID_H

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#define MAX_HID_DEVICES		7

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#define AMD_SFH_HID_VENDOR	0x1022

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#define AMD_SFH_HID_PRODUCT	0x0001

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struct request_list {

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	struct hid_device *hid;

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	struct list_head list;

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	u8 report_id;

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	u8 sensor_idx;

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	u8 report_type;

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	u8 current_index;

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};

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struct amd_input_data {

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	u32 *sensor_virt_addr[MAX_HID_DEVICES];

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	u8 *input_report[MAX_HID_DEVICES];

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};

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struct amdtp_cl_data {

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	u8 init_done;

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	u32 cur_hid_dev;

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	bool is_any_sensor_enabled;

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	u32 hid_dev_count;

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	u32 num_hid_devices;

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	struct device_info *hid_devices;

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	u8  *report_descr[MAX_HID_DEVICES];

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	int report_descr_sz[MAX_HID_DEVICES];

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	struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES];

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	u8 *hid_descr[MAX_HID_DEVICES];

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	int hid_descr_size[MAX_HID_DEVICES];

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	phys_addr_t phys_addr_base;

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	dma_addr_t sensor_dma_addr[MAX_HID_DEVICES];

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	u32 sensor_sts[MAX_HID_DEVICES];

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	u32 sensor_requested_cnt[MAX_HID_DEVICES];

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	u8 report_type[MAX_HID_DEVICES];

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	u8 report_id[MAX_HID_DEVICES];

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	u8 sensor_idx[MAX_HID_DEVICES];

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	u8 *feature_report[MAX_HID_DEVICES];

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	u8 request_done[MAX_HID_DEVICES];

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	struct amd_input_data *in_data;

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	struct delayed_work work;

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	struct delayed_work work_buffer;

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	struct request_list req_list;

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};

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/**

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 * struct amdtp_hid_data - Per instance HID data

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 * @index:		Device index in the order of enumeration

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 * @request_done:	Get Feature/Input report complete flag

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 *			used during get/set request from hid core

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 * @cli_data:		Link to the client instance

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 * @hid_wait:		Completion waitq

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 *

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 * Used to tie hid->driver data to driver client instance

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 */

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struct amdtp_hid_data {

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	int index;

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	struct amdtp_cl_data *cli_data;

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	wait_queue_head_t hid_wait;

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};

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/* Interface functions between HID LL driver and AMD SFH client */

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int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data);

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void amdtp_hid_remove(struct amdtp_cl_data *cli_data);

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int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type);

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void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type);

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void amdtp_hid_wakeup(struct hid_device *hid);

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#endif

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