/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * AMD MP2 PCIe communication driver * Copyright 2020-2021 Advanced Micro Devices, Inc. * Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> * Sandeep Singh <Sandeep.singh@amd.com> * Basavaraj Natikar <Basavaraj.Natikar@amd.com> */ #ifndef PCIE_MP2_AMD_H #define PCIE_MP2_AMD_H #include "amd_sfh_common.h" /* MP2 C2P Message Registers */ #define AMD_C2P_MSG0 0x10500 #define AMD_C2P_MSG1 0x10504 #define AMD_C2P_MSG2 0x10508 /* MP2 P2C Message Registers */ #define AMD_P2C_MSG3 0x1068C /* Supported Sensors info */ #define V2_STATUS 0x2 #define HPD_IDX 16 #define ACS_IDX 22 #define SENSOR_DISCOVERY_STATUS_MASK GENMASK(5, 3) #define SENSOR_DISCOVERY_STATUS_SHIFT 3 /* SFH Command register */ union sfh_cmd_base { u32 ul; struct { u32 cmd_id : 8; u32 sensor_id : 8; u32 period : 16; } s; struct { u32 cmd_id : 4; u32 intr_disable : 1; u32 rsvd1 : 3; u32 length : 7; u32 mem_type : 1; u32 sensor_id : 8; u32 period : 8; } cmd_v2; }; union cmd_response { u32 resp; struct { u32 status : 2; u32 out_in_c2p : 1; u32 rsvd1 : 1; u32 response : 4; u32 sub_cmd : 8; u32 sensor_id : 6; u32 rsvd2 : 10; } response_v2; }; union sfh_cmd_param { u32 ul; struct { u32 buf_layout : 2; u32 buf_length : 6; u32 rsvd : 24; } s; }; struct sfh_cmd_reg { union sfh_cmd_base cmd_base; union sfh_cmd_param cmd_param; phys_addr_t phys_addr; }; enum sensor_idx { accel_idx = 0, gyro_idx = 1, mag_idx = 2, als_idx = 19 }; enum mem_use_type { USE_DRAM, USE_C2P_REG, }; struct hpd_status { union { struct { u32 object_distance : 16; u32 probablity : 8; u32 human_presence_actual : 4; u32 human_presence_report : 4; } shpd; u32 val; }; }; int amd_mp2_get_sensor_num(struct amd_mp2_dev *privdata, u8 *sensor_id); int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata); int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata); void amd_sfh_set_desc_ops(struct amd_mp2_ops *mp2_ops); #endif