/* 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 5 #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; 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 */ void hid_amdtp_set_feature(struct hid_device *hid, char *buf, u32 len, int report_id); void hid_amdtp_get_report(struct hid_device *hid, int report_id, int report_type); 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