diff options
| author | Basavaraj Natikar <Basavaraj.Natikar@amd.com> | 2023-12-20 10:00:41 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.com> | 2024-01-04 17:19:17 +0300 |
| commit | b5b0774d53bb81bddbf8c609b3f183d4af6e91da (patch) | |
| tree | fef42bf8fa3bfccce75d6118ca81062b7c39f5b9 /include/linux/amd-pmf-io.h | |
| parent | 4e71d262899d7bab1f0c65936a2e639afeb83e4d (diff) | |
| download | linux-b5b0774d53bb81bddbf8c609b3f183d4af6e91da.tar.xz | |
HID: amd_sfh: Add a new interface for exporting HPD data
AMDSFH has information about the User presence information via the Human
Presence Detection (HPD) sensor 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/
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>
Diffstat (limited to 'include/linux/amd-pmf-io.h')
| -rw-r--r-- | include/linux/amd-pmf-io.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/amd-pmf-io.h b/include/linux/amd-pmf-io.h new file mode 100644 index 000000000000..5b6d29d36922 --- /dev/null +++ b/include/linux/amd-pmf-io.h @@ -0,0 +1,46 @@ +/* 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 + */ +enum sfh_message_type { + MT_HPD, +}; + +/** + * 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 + * @user_present: Populates the user presence information + */ +struct amd_sfh_info { + u8 user_present; +}; + +int amd_get_sfh_info(struct amd_sfh_info *sfh_info, enum sfh_message_type op); +#endif |