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  * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
   6  *          Sandeep Singh <sandeep.singh@amd.com>
   7  */
   8
   9 #ifndef AMDSFH_HID_H
  10 #define AMDSFH_HID_H
  11
  12 #define MAX_HID_DEVICES         5
  13 #define BUS_AMD_AMDTP           0x20
  14 #define AMD_SFH_HID_VENDOR      0x1022
  15 #define AMD_SFH_HID_PRODUCT     0x0001
  16
  17 struct amd_input_data {
  18         u32 *sensor_virt_addr[MAX_HID_DEVICES];
  19         u8 *input_report[MAX_HID_DEVICES];
  20 };
  21
  22 struct amdtp_cl_data {
  23         u8 init_done;
  24         u32 cur_hid_dev;
  25         u32 hid_dev_count;
  26         u32 num_hid_devices;
  27         struct device_info *hid_devices;
  28         u8  *report_descr[MAX_HID_DEVICES];
  29         int report_descr_sz[MAX_HID_DEVICES];
  30         struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES];
  31         u8 *hid_descr[MAX_HID_DEVICES];
  32         int hid_descr_size[MAX_HID_DEVICES];
  33         phys_addr_t phys_addr_base;
  34         dma_addr_t sensor_dma_addr[MAX_HID_DEVICES];
  35         u32 sensor_sts[MAX_HID_DEVICES];
  36         u32 sensor_requested_cnt[MAX_HID_DEVICES];
  37         u8 report_type[MAX_HID_DEVICES];
  38         u8 report_id[MAX_HID_DEVICES];
  39         u8 sensor_idx[MAX_HID_DEVICES];
  40         u8 *feature_report[MAX_HID_DEVICES];
  41         u8 request_done[MAX_HID_DEVICES];
  42         struct amd_input_data *in_data;
  43         struct delayed_work work;
  44         struct delayed_work work_buffer;
  45 };
  46
  47 /**
  48  * struct amdtp_hid_data - Per instance HID data
  49  * @index:              Device index in the order of enumeration
  50  * @request_done:       Get Feature/Input report complete flag
  51  *                      used during get/set request from hid core
  52  * @cli_data:           Link to the client instance
  53  * @hid_wait:           Completion waitq
  54  *
  55  * Used to tie hid->driver data to driver client instance
  56  */
  57 struct amdtp_hid_data {
  58         int index;
  59         struct amdtp_cl_data *cli_data;
  60         wait_queue_head_t hid_wait;
  61 };
  62
  63 /* Interface functions between HID LL driver and AMD SFH client */
  64 void hid_amdtp_set_feature(struct hid_device *hid, char *buf, u32 len, int report_id);
  65 void hid_amdtp_get_report(struct hid_device *hid, int report_id, int report_type);
  66 int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data);
  67 void amdtp_hid_remove(struct amdtp_cl_data *cli_data);
  68 int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type);
  69 void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type);
  70 void amdtp_hid_wakeup(struct hid_device *hid);
  71 u8 get_input_report(u8 current_index, int sensor_idx, int report_id,
  72                     struct amd_input_data *in_data);
  73 #endif