amd_sfh_hid.h

 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		7
15#define AMD_SFH_HID_VENDOR	0x1022
16#define AMD_SFH_HID_PRODUCT	0x0001
17
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 data
61 * @index:		Device index in the order of enumeration
62 * @request_done:	Get Feature/Input report complete flag
63 *			used during get/set request from hid core
64 * @cli_data:		Link to the client instance
65 * @hid_wait:		Completion waitq
66 *
67 * Used to tie hid->driver data to driver client instance
68 */
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#endif