/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * AMD MP2 Sensors transport driver
 *
 * Copyright 2020-2021 Advanced Micro Devices, Inc.
 * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
 *          Sandeep Singh <sandeep.singh@amd.com>
 *          Basavaraj Natikar <Basavaraj.Natikar@amd.com>
 */

#ifndef AMDSFH_HID_H
#define AMDSFH_HID_H

#define MAX_HID_DEVICES         7
#define AMD_SFH_HID_VENDOR      0x1022
#define AMD_SFH_HID_PRODUCT     0x0001

struct request_list {
        struct hid_device *hid;
        struct list_head list;
        u8 report_id;
        u8 sensor_idx;
        u8 report_type;
        u8 current_index;
};

struct amd_input_data {
        u32 *sensor_virt_addr[MAX_HID_DEVICES];
        u8 *input_report[MAX_HID_DEVICES];
};

struct amdtp_cl_data {
        u8 init_done;
        u32 cur_hid_dev;
        bool is_any_sensor_enabled;
        u32 hid_dev_count;
        u32 num_hid_devices;
        struct device_info *hid_devices;
        u8  *report_descr[MAX_HID_DEVICES];
        int report_descr_sz[MAX_HID_DEVICES];
        struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES];
        u8 *hid_descr[MAX_HID_DEVICES];
        int hid_descr_size[MAX_HID_DEVICES];
        phys_addr_t phys_addr_base;
        dma_addr_t sensor_dma_addr[MAX_HID_DEVICES];
        u32 sensor_sts[MAX_HID_DEVICES];
        u32 sensor_requested_cnt[MAX_HID_DEVICES];
        u8 report_type[MAX_HID_DEVICES];
        u8 report_id[MAX_HID_DEVICES];
        u8 sensor_idx[MAX_HID_DEVICES];
        u8 *feature_report[MAX_HID_DEVICES];
        u8 request_done[MAX_HID_DEVICES];
        struct amd_input_data *in_data;
        struct delayed_work work;
        struct delayed_work work_buffer;
        struct request_list req_list;
};

/**
 * struct amdtp_hid_data - Per instance HID data
 * @index:              Device index in the order of enumeration
 * @request_done:       Get Feature/Input report complete flag
 *                      used during get/set request from hid core
 * @cli_data:           Link to the client instance
 * @hid_wait:           Completion waitq
 *
 * Used to tie hid->driver data to driver client instance
 */
struct amdtp_hid_data {
        int index;
        struct amdtp_cl_data *cli_data;
        wait_queue_head_t hid_wait;
};

/* Interface functions between HID LL driver and AMD SFH client */
int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data);
void amdtp_hid_remove(struct amdtp_cl_data *cli_data);
int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type);
void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type);
void amdtp_hid_wakeup(struct hid_device *hid);
#endif