summaryrefslogtreecommitdiff
path: root/include/linux/amd-pmf-io.h
blob: b4f8182052169c0b74e5c12d69470e2af9605b99 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * AMD Platform Management Framework Interface
 *
 * Copyright (c) 2023, Advanced Micro Devices, Inc.
 * All Rights Reserved.
 *
 * Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
 *          Basavaraj Natikar <Basavaraj.Natikar@amd.com>
 */

#ifndef AMD_PMF_IO_H
#define AMD_PMF_IO_H

#include <linux/types.h>

/**
 * enum sfh_message_type - Query the SFH message type
 * @MT_HPD: Message ID to know the Human presence info from MP2 FW
 * @MT_ALS: Message ID to know the Ambient light info from MP2 FW
 */
enum sfh_message_type {
	MT_HPD,
	MT_ALS,
};

/**
 * enum sfh_hpd_info - Query the Human presence information
 * @SFH_NOT_DETECTED: Check the HPD connection information from MP2 FW
 * @SFH_USER_PRESENT: Check if the user is present from HPD sensor
 * @SFH_USER_AWAY: Check if the user is away from HPD sensor
 */
enum sfh_hpd_info {
	SFH_NOT_DETECTED,
	SFH_USER_PRESENT,
	SFH_USER_AWAY,
};

/**
 * struct amd_sfh_info - get HPD sensor info from MP2 FW
 * @ambient_light: Populates the ambient light information
 * @user_present: Populates the user presence information
 */
struct amd_sfh_info {
	u32 ambient_light;
	u8 user_present;
};

int amd_get_sfh_info(struct amd_sfh_info *sfh_info, enum sfh_message_type op);
#endif