diff options
Diffstat (limited to 'drivers/hid/amd-sfh-hid/amd_sfh_hid.h')
| -rw-r--r-- | drivers/hid/amd-sfh-hid/amd_sfh_hid.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_hid.h b/drivers/hid/amd-sfh-hid/amd_sfh_hid.h new file mode 100644 index 0000000000..97296f587b --- /dev/null +++ b/drivers/hid/amd-sfh-hid/amd_sfh_hid.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * AMD MP2 Sensors transport driver + * + * Copyright 2020-2021 Advanced Micro Devices, Inc. + * Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com> + * Sandeep Singh <sandeep.singh@amd.com> + * Basavaraj Natikar <Basavaraj.Natikar@amd.com> + */ + +#ifndef AMDSFH_HID_H +#define AMDSFH_HID_H + +#define MAX_HID_DEVICES 6 +#define AMD_SFH_HID_VENDOR 0x1022 +#define AMD_SFH_HID_PRODUCT 0x0001 + +struct request_list { + struct hid_device *hid; + struct list_head list; + u8 report_id; + u8 sensor_idx; + u8 report_type; + u8 current_index; +}; + +struct amd_input_data { + u32 *sensor_virt_addr[MAX_HID_DEVICES]; + u8 *input_report[MAX_HID_DEVICES]; +}; + +struct amdtp_cl_data { + u8 init_done; + u32 cur_hid_dev; + bool is_any_sensor_enabled; + u32 hid_dev_count; + u32 num_hid_devices; + struct device_info *hid_devices; + u8 *report_descr[MAX_HID_DEVICES]; + int report_descr_sz[MAX_HID_DEVICES]; + struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES]; + u8 *hid_descr[MAX_HID_DEVICES]; + int hid_descr_size[MAX_HID_DEVICES]; + phys_addr_t phys_addr_base; + dma_addr_t sensor_dma_addr[MAX_HID_DEVICES]; + u32 sensor_sts[MAX_HID_DEVICES]; + u32 sensor_requested_cnt[MAX_HID_DEVICES]; + u8 report_type[MAX_HID_DEVICES]; + u8 report_id[MAX_HID_DEVICES]; + u8 sensor_idx[MAX_HID_DEVICES]; + u8 *feature_report[MAX_HID_DEVICES]; + u8 request_done[MAX_HID_DEVICES]; + struct amd_input_data *in_data; + struct delayed_work work; + struct delayed_work work_buffer; + struct request_list req_list; +}; + +/** + * struct amdtp_hid_data - Per instance HID data + * @index: Device index in the order of enumeration + * @request_done: Get Feature/Input report complete flag + * used during get/set request from hid core + * @cli_data: Link to the client instance + * @hid_wait: Completion waitq + * + * Used to tie hid->driver data to driver client instance + */ +struct amdtp_hid_data { + int index; + struct amdtp_cl_data *cli_data; + wait_queue_head_t hid_wait; +}; + +/* Interface functions between HID LL driver and AMD SFH client */ +void hid_amdtp_set_feature(struct hid_device *hid, char *buf, u32 len, int report_id); +void hid_amdtp_get_report(struct hid_device *hid, int report_id, int report_type); +int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data); +void amdtp_hid_remove(struct amdtp_cl_data *cli_data); +int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type); +void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type); +void amdtp_hid_wakeup(struct hid_device *hid); +#endif |