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HID: amd_sfh: Add initial support for HPD sensor

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Add Human Presence Detection (HPD) sensors support
on AMD next generation HPD supported platforms.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Reviewed-by: Nehal Shah <nehal-bakulchandra.shah@amd.com>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Basavaraj Natikar 2021-06-18 13:48:38 +05:30 committed by Jiri Kosina
parent 0aad9c95eb
commit 24a31ea949
6 changed files with 174 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/hid/amd-sfh-hid/amd_sfh_hid.h
View File

@ -9,7 +9,7 @@
#ifndef AMDSFH_HID_H
#define AMDSFH_HID_H
#define MAX_HID_DEVICES 4
#define MAX_HID_DEVICES 5
#define BUS_AMD_AMDTP 0x20
#define AMD_SFH_HID_VENDOR 0x1022
#define AMD_SFH_HID_PRODUCT 0x0001

4
drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
View File

@ -24,6 +24,7 @@
#define ACEL_EN BIT(0)
#define GYRO_EN BIT(1)
#define MAGNO_EN BIT(2)
#define HPD_EN BIT(16)
#define ALS_EN BIT(19)
static int sensor_mask_override = -1;
@ -165,6 +166,9 @@ int amd_mp2_get_sensor_num(struct amd_mp2_dev *privdata, u8 *sensor_id)
if (ALS_EN & activestatus)
sensor_id[num_of_sensors++] = als_idx;
if (HPD_EN & activestatus)
sensor_id[num_of_sensors++] = HPD_IDX;
return num_of_sensors;
}

14
drivers/hid/amd-sfh-hid/amd_sfh_pcie.h
View File

@ -30,6 +30,8 @@
#define V2_STATUS 0x2
#define HPD_IDX 16
/* SFH Command register */
union sfh_cmd_base {
u32 ul;
@ -92,6 +94,18 @@ enum mem_use_type {
USE_C2P_REG,
};
struct hpd_status {
union {
struct {
u32 human_presence_report : 4;
u32 human_presence_actual : 4;
u32 probablity : 8;
u32 object_distance : 16;
} shpd;
u32 val;
};
};
void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info);
void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx);
void amd_stop_all_sensors(struct amd_mp2_dev *privdata);

34
drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c
View File

@ -50,6 +50,11 @@ int get_report_descriptor(int sensor_idx, u8 *rep_desc)
memcpy(rep_desc, als_report_descriptor,
sizeof(als_report_descriptor));
break;
case HPD_IDX: /* HPD sensor */
memset(rep_desc, 0, sizeof(hpd_report_descriptor));
memcpy(rep_desc, hpd_report_descriptor,
sizeof(hpd_report_descriptor));
break;
default:
break;
}
@ -99,6 +104,17 @@ u32 get_descr_sz(int sensor_idx, int descriptor_name)
return sizeof(struct als_feature_report);
}
break;
case HPD_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(hpd_report_descriptor);
case input_size:
return sizeof(struct hpd_input_report);
case feature_size:
return sizeof(struct hpd_feature_report);
}
break;
default:
break;
}
@ -120,6 +136,7 @@ u8 get_feature_report(int sensor_idx, int report_id, u8 *feature_report)
struct accel3_feature_report acc_feature;
struct gyro_feature_report gyro_feature;
struct magno_feature_report magno_feature;
struct hpd_feature_report hpd_feature;
struct als_feature_report als_feature;
u8 report_size = 0;
@ -162,6 +179,12 @@ u8 get_feature_report(int sensor_idx, int report_id, u8 *feature_report)
memcpy(feature_report, &als_feature, sizeof(als_feature));
report_size = sizeof(als_feature);
break;
case HPD_IDX: /* human presence detection sensor */
get_common_features(&hpd_feature.common_property, report_id);
memcpy(feature_report, &hpd_feature, sizeof(hpd_feature));
report_size = sizeof(hpd_feature);
break;
default:
break;
}
@ -181,10 +204,12 @@ u8 get_input_report(u8 current_index, int sensor_idx, int report_id, struct amd_
u32 *sensor_virt_addr = in_data->sensor_virt_addr[current_index];
u8 *input_report = in_data->input_report[current_index];
u8 supported_input = privdata->mp2_acs & GENMASK(3, 0);
struct magno_input_report magno_input;
struct accel3_input_report acc_input;
struct gyro_input_report gyro_input;
struct magno_input_report magno_input;
struct hpd_input_report hpd_input;
struct als_input_report als_input;
struct hpd_status hpdstatus;
u8 report_size = 0;
if (!sensor_virt_addr || !input_report)
@ -227,6 +252,13 @@ u8 get_input_report(u8 current_index, int sensor_idx, int report_id, struct amd_
report_size = sizeof(als_input);
memcpy(input_report, &als_input, sizeof(als_input));
break;
case HPD_IDX: /* hpd */
get_common_inputs(&hpd_input.common_property, report_id);
hpdstatus.val = readl(privdata->mmio + AMD_C2P_MSG(4));
hpd_input.human_presence = hpdstatus.shpd.human_presence_actual;
report_size = sizeof(hpd_input);
memcpy(input_report, &hpd_input, sizeof(hpd_input));
break;
default:
break;
}

10
drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h
View File

@ -100,6 +100,16 @@ struct als_input_report {
int illuminance_value;
} __packed;
struct hpd_feature_report {
struct common_feature_property common_property;
} __packed;
struct hpd_input_report {
struct common_input_property common_property;
/* values specific to human presence sensor */
u8 human_presence;
} __packed;
int get_report_descriptor(int sensor_idx, u8 rep_desc[]);
u32 get_descr_sz(int sensor_idx, int descriptor_name);
u8 get_feature_report(int sensor_idx, int report_id, u8 *feature_report);

112
drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h
View File

@ -642,4 +642,116 @@ const u8 als_report_descriptor[] = {
0X81, 0x02, /* HID Input (Data_Arr_Abs) */
0xC0 /* HID end collection */
};
/* BIOMETRIC PRESENCE*/
static const u8 hpd_report_descriptor[] = {
0x05, 0x20, /* Usage page */
0x09, 0x11, /* BIOMETRIC PRESENCE */
0xA1, 0x00, /* HID Collection (Physical) */
//feature reports(xmit/receive)
0x85, 5, /* HID Report ID */
0x05, 0x20, /* HID usage page sensor */
0x0A, 0x09, 0x03, /* Sensor property and sensor connection type */
0x15, 0, /* HID logical MIN_8(0) */
0x25, 2, /* HID logical MAX_8(2) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count(1) */
0xA1, 0x02, /* HID collection (logical) */
0x0A, 0x30, 0x08, /* Sensor property connection type intergated sel*/
0x0A, 0x31, 0x08, /* Sensor property connection type attached sel */
0x0A, 0x32, 0x08, /* Sensor property connection type external sel */
0xB1, 0x00, /* HID feature (Data_Arr_Abs) */
0xC0, /* HID end collection */
0x0A, 0x16, 0x03, /* HID usage sensor property reporting state */
0x15, 0, /* HID logical Min_8(0) */
0x25, 5, /* HID logical Max_8(5) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count(1) */
0xA1, 0x02, /* HID collection(logical) */
0x0A, 0x40, 0x08, /* Sensor property report state no events sel */
0x0A, 0x41, 0x08, /* Sensor property report state all events sel */
0x0A, 0x42, 0x08, /* Sensor property report state threshold events sel */
0x0A, 0x43, 0x08, /* Sensor property report state no events wake sel */
0x0A, 0x44, 0x08, /* Sensor property report state all events wake sel */
0x0A, 0x45, 0x08, /* Sensor property report state threshold events wake sel */
0xB1, 0x00, /* HID feature (Data_Arr_Abs) */
0xC0, /* HID end collection */
0x0A, 0x19, 0x03, /* HID usage sensor property power state */
0x15, 0, /* HID logical Min_8(0) */
0x25, 5, /* HID logical Max_8(5) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count(1) */
0xA1, 0x02, /* HID collection(logical) */
0x0A, 0x50, 0x08, /* Sensor property power state undefined sel */
0x0A, 0x51, 0x08, /* Sensor property power state D0 full power sel */
0x0A, 0x52, 0x08, /* Sensor property power state D1 low power sel */
0x0A, 0x53, 0x08, /* Sensor property power state D2 standby with wake sel */
0x0A, 0x54, 0x08, /* Sensor property power state D3 sleep with wake sel */
0x0A, 0x55, 0x08, /* Sensor property power state D4 power off sel */
0xB1, 0x00, /* HID feature (Data_Arr_Abs) */
0xC0, /* HID end collection */
0x0A, 0x01, 0x02, /* HID usage sensor state */
0x15, 0, /* HID logical Min_8(0) */
0x25, 6, /* HID logical Max_8(6) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count(1) */
0xA1, 0x02, /* HID collection(logical) */
0x0A, 0x00, 0x08, /* HID usage sensor state unknown sel */
0x0A, 0x01, 0x08, /* HID usage sensor state ready sel */
0x0A, 0x02, 0x08, /* HID usage sensor state not available sel */
0x0A, 0x03, 0x08, /* HID usage sensor state no data sel */
0x0A, 0x04, 0x08, /* HID usage sensor state initializing sel */
0x0A, 0x05, 0x08, /* HID usage sensor state access denied sel */
0x0A, 0x06, 0x08, /* HID usage sensor state error sel */
0xB1, 0x00, /* HID feature (Data_Arr_Abs) */
0xC0, /* HID end collection */
0x0A, 0x0E, 0x03, /* HID usage sensor property report interval */
0x15, 0, /* HID logical Min_8(0) */
0x27, 0xFF, 0xFF, 0xFF, 0xFF, /* HID logical Max_32 */
0x75, 32, /* HID report size(32) */
0x95, 1, /* HID report count(1) */
0x55, 0, /* HID unit exponent(0) */
0xB1, 0x02, /* HID feature (Data_Var_Abs) */
//input report (transmit)
0x05, 0x20, /* HID usage page sensors */
0x0A, 0x01, 0x02, /* HID usage sensor state */
0x15, 0, /* HID logical Min_8(0) */
0x25, 6, /* HID logical Max_8(6) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count (1) */
0xA1, 0x02, /* HID end collection (logical) */
0x0A, 0x00, 0x08, /* HID usage sensor state unknown sel */
0x0A, 0x01, 0x08, /* HID usage sensor state ready sel */
0x0A, 0x02, 0x08, /* HID usage sensor state not available sel */
0x0A, 0x03, 0x08, /* HID usage sensor state no data sel */
0x0A, 0x04, 0x08, /* HID usage sensor state initializing sel */
0x0A, 0x05, 0x08, /* HID usage sensor state access denied sel */
0x0A, 0x06, 0x08, /* HID usage sensor state error sel */
0X81, 0x00, /* HID Input (Data_Arr_Abs) */
0xC0, /* HID end collection */
0x0A, 0x02, 0x02, /* HID usage sensor event */
0x15, 0, /* HID logical Min_8(0) */
0x25, 5, /* HID logical Max_8(5) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count (1) */
0xA1, 0x02, /* HID end collection (logical) */
0x0A, 0x10, 0x08, /* HID usage sensor event unknown sel */
0x0A, 0x11, 0x08, /* HID usage sensor event state changed sel */
0x0A, 0x12, 0x08, /* HID usage sensor event property changed sel */
0x0A, 0x13, 0x08, /* HID usage sensor event data updated sel */
0x0A, 0x14, 0x08, /* HID usage sensor event poll response sel */
0x0A, 0x15, 0x08, /* HID usage sensor event change sensitivity sel */
0X81, 0x00, /* HID Input (Data_Arr_Abs) */
0xC0, /* HID end collection */
0x0A, 0xB1, 0x04, /* HID usage sensor data BIOMETRIC HUMAN PRESENCE */
0x15, 0, /* HID logical Min_8(0) */
0x25, 1, /* HID logical Max_8(1) */
0x75, 8, /* HID report size(8) */
0x95, 1, /* HID report count (1) */
0X81, 0x02, /* HID Input (Data_Var_Abs) */
0xC0 /* HID end collection */
};
#endif