diff options
Diffstat (limited to 'include/linux/amd-pmf-io.h')
-rw-r--r-- | include/linux/amd-pmf-io.h | 50 |
1 files changed, 50 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..b4f818205216 --- /dev/null +++ b/include/linux/amd-pmf-io.h @@ -0,0 +1,50 @@ +/* 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 |