drivers/hid/amd-sfh-hid/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 <[email protected]>
   7  *          Sandeep Singh <[email protected]>
   8  *          Basavaraj Natikar <[email protected]>
   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