1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * AMD MP2 Sensors transport driver 4 * 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_H 12 #define AMDSFH_HID_H 13 14 #define MAX_HID_DEVICES 5 15 #define BUS_AMD_AMDTP 0x20 16 #define AMD_SFH_HID_VENDOR 0x1022 17 #define AMD_SFH_HID_PRODUCT 0x0001 18 19 struct amd_input_data { 20 u32 *sensor_virt_addr[MAX_HID_DEVICES]; 21 u8 *input_report[MAX_HID_DEVICES]; 22 }; 23 24 struct amdtp_cl_data { 25 u8 init_done; 26 u32 cur_hid_dev; 27 u32 hid_dev_count; 28 u32 num_hid_devices; 29 struct device_info *hid_devices; 30 u8 *report_descr[MAX_HID_DEVICES]; 31 int report_descr_sz[MAX_HID_DEVICES]; 32 struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES]; 33 u8 *hid_descr[MAX_HID_DEVICES]; 34 int hid_descr_size[MAX_HID_DEVICES]; 35 phys_addr_t phys_addr_base; 36 dma_addr_t sensor_dma_addr[MAX_HID_DEVICES]; 37 u32 sensor_sts[MAX_HID_DEVICES]; 38 u32 sensor_requested_cnt[MAX_HID_DEVICES]; 39 u8 report_type[MAX_HID_DEVICES]; 40 u8 report_id[MAX_HID_DEVICES]; 41 u8 sensor_idx[MAX_HID_DEVICES]; 42 u8 *feature_report[MAX_HID_DEVICES]; 43 u8 request_done[MAX_HID_DEVICES]; 44 struct amd_input_data *in_data; 45 struct delayed_work work; 46 struct delayed_work work_buffer; 47 }; 48 49 /** 50 * struct amdtp_hid_data - Per instance HID data 51 * @index: Device index in the order of enumeration 52 * @request_done: Get Feature/Input report complete flag 53 * used during get/set request from hid core 54 * @cli_data: Link to the client instance 55 * @hid_wait: Completion waitq 56 * 57 * Used to tie hid->driver data to driver client instance 58 */ 59 struct amdtp_hid_data { 60 int index; 61 struct amdtp_cl_data *cli_data; 62 wait_queue_head_t hid_wait; 63 }; 64 65 /* Interface functions between HID LL driver and AMD SFH client */ 66 void hid_amdtp_set_feature(struct hid_device *hid, char *buf, u32 len, int report_id); 67 void hid_amdtp_get_report(struct hid_device *hid, int report_id, int report_type); 68 int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data); 69 void amdtp_hid_remove(struct amdtp_cl_data *cli_data); 70 int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type); 71 void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type); 72 void amdtp_hid_wakeup(struct hid_device *hid); 73 u8 get_input_report(u8 current_index, int sensor_idx, int report_id, 74 struct amd_input_data *in_data); 75 #endif 76