1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * AMD MP2 PCIe communication driver
4 * Copyright 2020-2021 Advanced Micro Devices, Inc.
5 * Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
6 *	    Sandeep Singh <Sandeep.singh@amd.com>
7 *	    Basavaraj Natikar <Basavaraj.Natikar@amd.com>
8 */
9
10#ifndef PCIE_MP2_AMD_H
11#define PCIE_MP2_AMD_H
12
13#include "amd_sfh_common.h"
14
15/* MP2 C2P Message Registers */
16#define AMD_C2P_MSG0	0x10500
17#define AMD_C2P_MSG1	0x10504
18#define AMD_C2P_MSG2	0x10508
19
20/* MP2 P2C Message Registers */
21#define AMD_P2C_MSG3	0x1068C /* Supported Sensors info */
22
23#define V2_STATUS	0x2
24
25#define HPD_IDX		16
26#define ACS_IDX		22
27
28#define SENSOR_DISCOVERY_STATUS_MASK		GENMASK(5, 3)
29#define SENSOR_DISCOVERY_STATUS_SHIFT		3
30
31/* SFH Command register */
32union sfh_cmd_base {
33	u32 ul;
34	struct {
35		u32 cmd_id : 8;
36		u32 sensor_id : 8;
37		u32 period : 16;
38	} s;
39	struct {
40		u32 cmd_id : 4;
41		u32 intr_disable : 1;
42		u32 rsvd1 : 3;
43		u32 length : 7;
44		u32 mem_type : 1;
45		u32 sensor_id : 8;
46		u32 period : 8;
47	} cmd_v2;
48};
49
50union cmd_response {
51	u32 resp;
52	struct {
53		u32 status	: 2;
54		u32 out_in_c2p	: 1;
55		u32 rsvd1	: 1;
56		u32 response	: 4;
57		u32 sub_cmd	: 8;
58		u32 sensor_id	: 6;
59		u32 rsvd2	: 10;
60	} response_v2;
61};
62
63union sfh_cmd_param {
64	u32 ul;
65	struct {
66		u32 buf_layout : 2;
67		u32 buf_length : 6;
68		u32 rsvd : 24;
69	} s;
70};
71
72struct sfh_cmd_reg {
73	union sfh_cmd_base cmd_base;
74	union sfh_cmd_param cmd_param;
75	phys_addr_t phys_addr;
76};
77
78enum sensor_idx {
79	accel_idx = 0,
80	gyro_idx = 1,
81	mag_idx = 2,
82	als_idx = 19
83};
84
85enum mem_use_type {
86	USE_DRAM,
87	USE_C2P_REG,
88};
89
90struct hpd_status {
91	union {
92		struct {
93			u32 object_distance       : 16;
94			u32 probablity		  : 8;
95			u32 human_presence_actual : 4;
96			u32 human_presence_report : 4;
97		} shpd;
98		u32 val;
99	};
100};
101
102int amd_mp2_get_sensor_num(struct amd_mp2_dev *privdata, u8 *sensor_id);
103int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata);
104int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata);
105void amd_sfh_set_desc_ops(struct amd_mp2_ops *mp2_ops);
106
107#endif
108