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584f35a364
AMDSFH has information about the Ambient light via the Ambient Light Sensor (ALS) which is part of the AMD sensor fusion hub. Add a new interface to export this information, where other drivers like PMF can use this information to enhance user experiences. Link: https://lore.kernel.org/all/ad064333-48a4-4cfa-9428-69e8a7c44667@redhat.com/ Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Co-developed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* AMD Platform Management Framework Interface
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*
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* Copyright (c) 2023, Advanced Micro Devices, Inc.
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* All Rights Reserved.
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*
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* Authors: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
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* Basavaraj Natikar <Basavaraj.Natikar@amd.com>
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*/
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#ifndef AMD_PMF_IO_H
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#define AMD_PMF_IO_H
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#include <linux/types.h>
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/**
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* enum sfh_message_type - Query the SFH message type
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* @MT_HPD: Message ID to know the Human presence info from MP2 FW
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* @MT_ALS: Message ID to know the Ambient light info from MP2 FW
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*/
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enum sfh_message_type {
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MT_HPD,
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MT_ALS,
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};
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/**
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* enum sfh_hpd_info - Query the Human presence information
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* @SFH_NOT_DETECTED: Check the HPD connection information from MP2 FW
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* @SFH_USER_PRESENT: Check if the user is present from HPD sensor
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* @SFH_USER_AWAY: Check if the user is away from HPD sensor
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*/
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enum sfh_hpd_info {
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SFH_NOT_DETECTED,
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SFH_USER_PRESENT,
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SFH_USER_AWAY,
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};
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/**
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* struct amd_sfh_info - get HPD sensor info from MP2 FW
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* @ambient_light: Populates the ambient light information
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* @user_present: Populates the user presence information
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*/
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struct amd_sfh_info {
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u32 ambient_light;
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u8 user_present;
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};
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int amd_get_sfh_info(struct amd_sfh_info *sfh_info, enum sfh_message_type op);
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#endif
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