1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * AMD Platform Management Framework Interface 4 * 5 * Copyright (c) 2023, Advanced Micro Devices, Inc. 6 * All Rights Reserved. 7 * 8 * Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> 9 * Basavaraj Natikar <Basavaraj.Natikar@amd.com> 10 */ 11 12 #ifndef AMD_PMF_IO_H 13 #define AMD_PMF_IO_H 14 15 #include <linux/types.h> 16 17 /** 18 * enum sfh_message_type - Query the SFH message type 19 * @MT_HPD: Message ID to know the Human presence info from MP2 FW 20 * @MT_ALS: Message ID to know the Ambient light info from MP2 FW 21 */ 22 enum sfh_message_type { 23 MT_HPD, 24 MT_ALS, 25 }; 26 27 /** 28 * enum sfh_hpd_info - Query the Human presence information 29 * @SFH_NOT_DETECTED: Check the HPD connection information from MP2 FW 30 * @SFH_USER_PRESENT: Check if the user is present from HPD sensor 31 * @SFH_USER_AWAY: Check if the user is away from HPD sensor 32 */ 33 enum sfh_hpd_info { 34 SFH_NOT_DETECTED, 35 SFH_USER_PRESENT, 36 SFH_USER_AWAY, 37 }; 38 39 /** 40 * struct amd_sfh_info - get HPD sensor info from MP2 FW 41 * @ambient_light: Populates the ambient light information 42 * @user_present: Populates the user presence information 43 */ 44 struct amd_sfh_info { 45 u32 ambient_light; 46 u8 user_present; 47 }; 48 49 int amd_get_sfh_info(struct amd_sfh_info *sfh_info, enum sfh_message_type op); 50 #endif 51