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 <[email protected]>
   6  *          Sandeep Singh <[email protected]>
   7  */
   8
   9 #ifndef AMDSFH_HID_H
  10 #define AMDSFH_HID_H
  11
  12 #define MAX_HID_DEVICES         4
  13 #define BUS_AMD_AMDTP           0x20
  14 #define AMD_SFH_HID_VENDOR      0x1022
  15 #define AMD_SFH_HID_PRODUCT     0x0001
  16
  17 struct amdtp_cl_data {
  18         u8 init_done;
  19         u32 cur_hid_dev;
  20         u32 hid_dev_count;
  21         u32 num_hid_devices;
  22         struct device_info *hid_devices;
  23         u8  *report_descr[MAX_HID_DEVICES];
  24         int report_descr_sz[MAX_HID_DEVICES];
  25         struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES];
  26         u8 *hid_descr[MAX_HID_DEVICES];
  27         int hid_descr_size[MAX_HID_DEVICES];
  28         phys_addr_t phys_addr_base;
  29         u32 *sensor_virt_addr[MAX_HID_DEVICES];
  30         dma_addr_t sensor_dma_addr[MAX_HID_DEVICES];
  31         u32 sensor_sts[MAX_HID_DEVICES];
  32         u32 sensor_requested_cnt[MAX_HID_DEVICES];
  33         u8 report_type[MAX_HID_DEVICES];
  34         u8 report_id[MAX_HID_DEVICES];
  35         u8 sensor_idx[MAX_HID_DEVICES];
  36         u8 *feature_report[MAX_HID_DEVICES];
  37         u8 *input_report[MAX_HID_DEVICES];
  38         u8 request_done[MAX_HID_DEVICES];
  39         struct delayed_work work;
  40         struct delayed_work work_buffer;
  41 };
  42
  43 /**
  44  * struct amdtp_hid_data - Per instance HID data
  45  * @index:              Device index in the order of enumeration
  46  * @request_done:       Get Feature/Input report complete flag
  47  *                      used during get/set request from hid core
  48  * @cli_data:           Link to the client instance
  49  * @hid_wait:           Completion waitq
  50  *
  51  * Used to tie hid->driver data to driver client instance
  52  */
  53 struct amdtp_hid_data {
  54         int index;
  55         struct amdtp_cl_data *cli_data;
  56         wait_queue_head_t hid_wait;
  57 };
  58
  59 /* Interface functions between HID LL driver and AMD SFH client */
  60 void hid_amdtp_set_feature(struct hid_device *hid, char *buf, u32 len, int report_id);
  61 void hid_amdtp_get_report(struct hid_device *hid, int report_id, int report_type);
  62 int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data);
  63 void amdtp_hid_remove(struct amdtp_cl_data *cli_data);
  64 int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type);
  65 void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type);
  66 void amdtp_hid_wakeup(struct hid_device *hid);
  67 #endif