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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * AMD MP2 Sensors transport driver4 *5 * Copyright 2020-2021 Advanced Micro Devices, Inc.6 * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>7 * Sandeep Singh <sandeep.singh@amd.com>8 * Basavaraj Natikar <Basavaraj.Natikar@amd.com>9 */10 11#ifndef AMDSFH_HID_H12#define AMDSFH_HID_H13 14#define MAX_HID_DEVICES 615#define AMD_SFH_HID_VENDOR 0x102216#define AMD_SFH_HID_PRODUCT 0x000117 18struct request_list {19 struct hid_device *hid;20 struct list_head list;21 u8 report_id;22 u8 sensor_idx;23 u8 report_type;24 u8 current_index;25};26 27struct amd_input_data {28 u32 *sensor_virt_addr[MAX_HID_DEVICES];29 u8 *input_report[MAX_HID_DEVICES];30};31 32struct amdtp_cl_data {33 u8 init_done;34 u32 cur_hid_dev;35 bool is_any_sensor_enabled;36 u32 hid_dev_count;37 u32 num_hid_devices;38 struct device_info *hid_devices;39 u8 *report_descr[MAX_HID_DEVICES];40 int report_descr_sz[MAX_HID_DEVICES];41 struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES];42 u8 *hid_descr[MAX_HID_DEVICES];43 int hid_descr_size[MAX_HID_DEVICES];44 phys_addr_t phys_addr_base;45 dma_addr_t sensor_dma_addr[MAX_HID_DEVICES];46 u32 sensor_sts[MAX_HID_DEVICES];47 u32 sensor_requested_cnt[MAX_HID_DEVICES];48 u8 report_type[MAX_HID_DEVICES];49 u8 report_id[MAX_HID_DEVICES];50 u8 sensor_idx[MAX_HID_DEVICES];51 u8 *feature_report[MAX_HID_DEVICES];52 u8 request_done[MAX_HID_DEVICES];53 struct amd_input_data *in_data;54 struct delayed_work work;55 struct delayed_work work_buffer;56 struct request_list req_list;57};58 59/**60 * struct amdtp_hid_data - Per instance HID data61 * @index: Device index in the order of enumeration62 * @request_done: Get Feature/Input report complete flag63 * used during get/set request from hid core64 * @cli_data: Link to the client instance65 * @hid_wait: Completion waitq66 *67 * Used to tie hid->driver data to driver client instance68 */69struct amdtp_hid_data {70 int index;71 struct amdtp_cl_data *cli_data;72 wait_queue_head_t hid_wait;73};74 75/* Interface functions between HID LL driver and AMD SFH client */76int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data);77void amdtp_hid_remove(struct amdtp_cl_data *cli_data);78int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type);79void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type);80void amdtp_hid_wakeup(struct hid_device *hid);81#endif82