Merge branch 'for-4.1/sensor-hub' into for-linus
Conflicts: drivers/iio/common/hid-sensors/hid-sensor-trigger.c include/linux/hid-sensor-hub.h
This commit is contained in:
commit
2e455c27bd
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@ -138,3 +138,87 @@ accelerometer wants to poll X axis value, then it can call this function with
|
|||
the usage id of X axis. HID sensors can provide events, so this is not necessary
|
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to poll for any field. If there is some new sample, the core driver will call
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registered callback function to process the sample.
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----------
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HID Custom and generic Sensors
|
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|
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HID Sensor specification defines two special sensor usage types. Since they
|
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don't represent a standard sensor, it is not possible to define using Linux IIO
|
||||
type interfaces.
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The purpose of these sensors is to extend the functionality or provide a
|
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way to obfuscate the data being communicated by a sensor. Without knowing the
|
||||
mapping between the data and its encapsulated form, it is difficult for
|
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an application/driver to determine what data is being communicated by the sensor.
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This allows some differentiating use cases, where vendor can provide applications.
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Some common use cases are debug other sensors or to provide some events like
|
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keyboard attached/detached or lid open/close.
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|
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To allow application to utilize these sensors, here they are exported uses sysfs
|
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attribute groups, attributes and misc device interface.
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An example of this representation on sysfs:
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/sys/devices/pci0000:00/INT33C2:00/i2c-0/i2c-INT33D1:00/0018:8086:09FA.0001/HID-SENSOR-2000e1.6.auto$ tree -R
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.
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????????? enable_sensor
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????????? feature-0-200316
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??????? ????????? feature-0-200316-maximum
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??????? ????????? feature-0-200316-minimum
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??????? ????????? feature-0-200316-name
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??????? ????????? feature-0-200316-size
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??????? ????????? feature-0-200316-unit-expo
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??????? ????????? feature-0-200316-units
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??????? ????????? feature-0-200316-value
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????????? feature-1-200201
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??????? ????????? feature-1-200201-maximum
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??????? ????????? feature-1-200201-minimum
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??????? ????????? feature-1-200201-name
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??????? ????????? feature-1-200201-size
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??????? ????????? feature-1-200201-unit-expo
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??????? ????????? feature-1-200201-units
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??????? ????????? feature-1-200201-value
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????????? input-0-200201
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??????? ????????? input-0-200201-maximum
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??????? ????????? input-0-200201-minimum
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??????? ????????? input-0-200201-name
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??????? ????????? input-0-200201-size
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??????? ????????? input-0-200201-unit-expo
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??????? ????????? input-0-200201-units
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??????? ????????? input-0-200201-value
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????????? input-1-200202
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??????? ????????? input-1-200202-maximum
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??????? ????????? input-1-200202-minimum
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??????? ????????? input-1-200202-name
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??????? ????????? input-1-200202-size
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??????? ????????? input-1-200202-unit-expo
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??????? ????????? input-1-200202-units
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??????? ????????? input-1-200202-value
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Here there is a custom sensors with four fields, two feature and two inputs.
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Each field is represented by a set of attributes. All fields except the "value"
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are read only. The value field is a RW field.
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Example
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/sys/bus/platform/devices/HID-SENSOR-2000e1.6.auto/feature-0-200316$ grep -r . *
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feature-0-200316-maximum:6
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feature-0-200316-minimum:0
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feature-0-200316-name:property-reporting-state
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feature-0-200316-size:1
|
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feature-0-200316-unit-expo:0
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feature-0-200316-units:25
|
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feature-0-200316-value:1
|
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|
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How to enable such sensor?
|
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By default sensor can be power gated. To enable sysfs attribute "enable" can be
|
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used.
|
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$ echo 1 > enable_sensor
|
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|
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Once enabled and powered on, sensor can report value using HID reports.
|
||||
These reports are pushed using misc device interface in a FIFO order.
|
||||
/dev$ tree | grep HID-SENSOR-2000e1.6.auto
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??????? ????????? 10:53 -> ../HID-SENSOR-2000e1.6.auto
|
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????????? HID-SENSOR-2000e1.6.auto
|
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|
||||
Each reports can be of variable length preceded by a header. This header
|
||||
consist of a 32 bit usage id, 64 bit time stamp and 32 bit length field of raw
|
||||
data.
|
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|
|
|
@ -878,6 +878,21 @@ config HID_SENSOR_HUB
|
|||
for events and handle data streams. Each sensor driver can format
|
||||
data and present to user mode using input or IIO interface.
|
||||
|
||||
config HID_SENSOR_CUSTOM_SENSOR
|
||||
tristate "HID Sensors hub custom sensor support"
|
||||
depends on HID_SENSOR_HUB
|
||||
default n
|
||||
---help---
|
||||
HID Sensor hub specification allows definition of some custom and
|
||||
generic sensors. Unlike other HID sensors, they can't be exported
|
||||
via Linux IIO because of custom fields. This is up to the manufacturer
|
||||
to decide how to interpret these special sensor ids and process in
|
||||
the user space. Currently some manufacturers are using these ids for
|
||||
sensor calibration and debugging other sensors. Manufacturers
|
||||
should't use these special custom sensor ids to export any of the
|
||||
standard sensors.
|
||||
Select this config option for custom/generic sensor support.
|
||||
|
||||
endmenu
|
||||
|
||||
endif # HID
|
||||
|
|
|
@ -100,6 +100,7 @@ obj-$(CONFIG_HID_WACOM) += wacom.o
|
|||
obj-$(CONFIG_HID_WALTOP) += hid-waltop.o
|
||||
obj-$(CONFIG_HID_WIIMOTE) += hid-wiimote.o
|
||||
obj-$(CONFIG_HID_SENSOR_HUB) += hid-sensor-hub.o
|
||||
obj-$(CONFIG_HID_SENSOR_CUSTOM_SENSOR) += hid-sensor-custom.o
|
||||
|
||||
obj-$(CONFIG_USB_HID) += usbhid/
|
||||
obj-$(CONFIG_USB_MOUSE) += usbhid/
|
||||
|
|
849
drivers/hid/hid-sensor-custom.c
Normal file
849
drivers/hid/hid-sensor-custom.c
Normal file
|
@ -0,0 +1,849 @@
|
|||
/*
|
||||
* hid-sensor-custom.c
|
||||
* Copyright (c) 2015, Intel Corporation.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/miscdevice.h>
|
||||
#include <linux/kfifo.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/poll.h>
|
||||
#include <linux/bsearch.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/hid-sensor-hub.h>
|
||||
|
||||
#define HID_CUSTOM_NAME_LENGTH 64
|
||||
#define HID_CUSTOM_MAX_CORE_ATTRS 10
|
||||
#define HID_CUSTOM_TOTAL_ATTRS (HID_CUSTOM_MAX_CORE_ATTRS + 1)
|
||||
#define HID_CUSTOM_FIFO_SIZE 4096
|
||||
#define HID_CUSTOM_MAX_FEATURE_BYTES 64
|
||||
|
||||
struct hid_sensor_custom_field {
|
||||
int report_id;
|
||||
char group_name[HID_CUSTOM_NAME_LENGTH];
|
||||
struct hid_sensor_hub_attribute_info attribute;
|
||||
struct device_attribute sd_attrs[HID_CUSTOM_MAX_CORE_ATTRS];
|
||||
char attr_name[HID_CUSTOM_TOTAL_ATTRS][HID_CUSTOM_NAME_LENGTH];
|
||||
struct attribute *attrs[HID_CUSTOM_TOTAL_ATTRS];
|
||||
struct attribute_group hid_custom_attribute_group;
|
||||
};
|
||||
|
||||
struct hid_sensor_custom {
|
||||
struct mutex mutex;
|
||||
struct platform_device *pdev;
|
||||
struct hid_sensor_hub_device *hsdev;
|
||||
struct hid_sensor_hub_callbacks callbacks;
|
||||
int sensor_field_count;
|
||||
struct hid_sensor_custom_field *fields;
|
||||
int input_field_count;
|
||||
int input_report_size;
|
||||
int input_report_recd_size;
|
||||
bool input_skip_sample;
|
||||
bool enable;
|
||||
struct hid_sensor_custom_field *power_state;
|
||||
struct hid_sensor_custom_field *report_state;
|
||||
struct miscdevice custom_dev;
|
||||
struct kfifo data_fifo;
|
||||
unsigned long misc_opened;
|
||||
wait_queue_head_t wait;
|
||||
};
|
||||
|
||||
/* Header for each sample to user space via dev interface */
|
||||
struct hid_sensor_sample {
|
||||
u32 usage_id;
|
||||
u64 timestamp;
|
||||
u32 raw_len;
|
||||
} __packed;
|
||||
|
||||
static struct attribute hid_custom_attrs[] = {
|
||||
{.name = "name", .mode = S_IRUGO},
|
||||
{.name = "units", .mode = S_IRUGO},
|
||||
{.name = "unit-expo", .mode = S_IRUGO},
|
||||
{.name = "minimum", .mode = S_IRUGO},
|
||||
{.name = "maximum", .mode = S_IRUGO},
|
||||
{.name = "size", .mode = S_IRUGO},
|
||||
{.name = "value", .mode = S_IWUSR | S_IRUGO},
|
||||
{.name = NULL}
|
||||
};
|
||||
|
||||
static const struct hid_custom_usage_desc {
|
||||
int usage_id;
|
||||
char *desc;
|
||||
} hid_custom_usage_desc_table[] = {
|
||||
{0x200201, "event-sensor-state"},
|
||||
{0x200202, "event-sensor-event"},
|
||||
{0x200301, "property-friendly-name"},
|
||||
{0x200302, "property-persistent-unique-id"},
|
||||
{0x200303, "property-sensor-status"},
|
||||
{0x200304, "property-min-report-interval"},
|
||||
{0x200305, "property-sensor-manufacturer"},
|
||||
{0x200306, "property-sensor-model"},
|
||||
{0x200307, "property-sensor-serial-number"},
|
||||
{0x200308, "property-sensor-description"},
|
||||
{0x200309, "property-sensor-connection-type"},
|
||||
{0x20030A, "property-sensor-device-path"},
|
||||
{0x20030B, "property-hardware-revision"},
|
||||
{0x20030C, "property-firmware-version"},
|
||||
{0x20030D, "property-release-date"},
|
||||
{0x20030E, "property-report-interval"},
|
||||
{0x20030F, "property-change-sensitivity-absolute"},
|
||||
{0x200310, "property-change-sensitivity-percent-range"},
|
||||
{0x200311, "property-change-sensitivity-percent-relative"},
|
||||
{0x200312, "property-accuracy"},
|
||||
{0x200313, "property-resolution"},
|
||||
{0x200314, "property-maximum"},
|
||||
{0x200315, "property-minimum"},
|
||||
{0x200316, "property-reporting-state"},
|
||||
{0x200317, "property-sampling-rate"},
|
||||
{0x200318, "property-response-curve"},
|
||||
{0x200319, "property-power-state"},
|
||||
{0x200540, "data-field-custom"},
|
||||
{0x200541, "data-field-custom-usage"},
|
||||
{0x200542, "data-field-custom-boolean-array"},
|
||||
{0x200543, "data-field-custom-value"},
|
||||
{0x200544, "data-field-custom-value_1"},
|
||||
{0x200545, "data-field-custom-value_2"},
|
||||
{0x200546, "data-field-custom-value_3"},
|
||||
{0x200547, "data-field-custom-value_4"},
|
||||
{0x200548, "data-field-custom-value_5"},
|
||||
{0x200549, "data-field-custom-value_6"},
|
||||
{0x20054A, "data-field-custom-value_7"},
|
||||
{0x20054B, "data-field-custom-value_8"},
|
||||
{0x20054C, "data-field-custom-value_9"},
|
||||
{0x20054D, "data-field-custom-value_10"},
|
||||
{0x20054E, "data-field-custom-value_11"},
|
||||
{0x20054F, "data-field-custom-value_12"},
|
||||
{0x200550, "data-field-custom-value_13"},
|
||||
{0x200551, "data-field-custom-value_14"},
|
||||
{0x200552, "data-field-custom-value_15"},
|
||||
{0x200553, "data-field-custom-value_16"},
|
||||
{0x200554, "data-field-custom-value_17"},
|
||||
{0x200555, "data-field-custom-value_18"},
|
||||
{0x200556, "data-field-custom-value_19"},
|
||||
{0x200557, "data-field-custom-value_20"},
|
||||
{0x200558, "data-field-custom-value_21"},
|
||||
{0x200559, "data-field-custom-value_22"},
|
||||
{0x20055A, "data-field-custom-value_23"},
|
||||
{0x20055B, "data-field-custom-value_24"},
|
||||
{0x20055C, "data-field-custom-value_25"},
|
||||
{0x20055D, "data-field-custom-value_26"},
|
||||
{0x20055E, "data-field-custom-value_27"},
|
||||
{0x20055F, "data-field-custom-value_28"},
|
||||
};
|
||||
|
||||
static int usage_id_cmp(const void *p1, const void *p2)
|
||||
{
|
||||
if (*(int *)p1 < *(int *)p2)
|
||||
return -1;
|
||||
|
||||
if (*(int *)p1 > *(int *)p2)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ssize_t enable_sensor_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
|
||||
|
||||
return sprintf(buf, "%d\n", sensor_inst->enable);
|
||||
}
|
||||
|
||||
static int set_power_report_state(struct hid_sensor_custom *sensor_inst,
|
||||
bool state)
|
||||
{
|
||||
int power_val = -1;
|
||||
int report_val = -1;
|
||||
u32 power_state_usage_id;
|
||||
u32 report_state_usage_id;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* It is possible that the power/report state ids are not present.
|
||||
* In this case this function will return success. But if the
|
||||
* ids are present, then it will return error if set fails.
|
||||
*/
|
||||
if (state) {
|
||||
power_state_usage_id =
|
||||
HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM;
|
||||
report_state_usage_id =
|
||||
HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM;
|
||||
} else {
|
||||
power_state_usage_id =
|
||||
HID_USAGE_SENSOR_PROP_POWER_STATE_D4_POWER_OFF_ENUM;
|
||||
report_state_usage_id =
|
||||
HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM;
|
||||
}
|
||||
|
||||
if (sensor_inst->power_state)
|
||||
power_val = hid_sensor_get_usage_index(sensor_inst->hsdev,
|
||||
sensor_inst->power_state->attribute.report_id,
|
||||
sensor_inst->power_state->attribute.index,
|
||||
power_state_usage_id);
|
||||
if (sensor_inst->report_state)
|
||||
report_val = hid_sensor_get_usage_index(sensor_inst->hsdev,
|
||||
sensor_inst->report_state->attribute.report_id,
|
||||
sensor_inst->report_state->attribute.index,
|
||||
report_state_usage_id);
|
||||
|
||||
if (power_val >= 0) {
|
||||
power_val +=
|
||||
sensor_inst->power_state->attribute.logical_minimum;
|
||||
ret = sensor_hub_set_feature(sensor_inst->hsdev,
|
||||
sensor_inst->power_state->attribute.report_id,
|
||||
sensor_inst->power_state->attribute.index,
|
||||
sizeof(power_val),
|
||||
&power_val);
|
||||
if (ret) {
|
||||
hid_err(sensor_inst->hsdev->hdev,
|
||||
"Set power state failed\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
if (report_val >= 0) {
|
||||
report_val +=
|
||||
sensor_inst->report_state->attribute.logical_minimum;
|
||||
ret = sensor_hub_set_feature(sensor_inst->hsdev,
|
||||
sensor_inst->report_state->attribute.report_id,
|
||||
sensor_inst->report_state->attribute.index,
|
||||
sizeof(report_val),
|
||||
&report_val);
|
||||
if (ret) {
|
||||
hid_err(sensor_inst->hsdev->hdev,
|
||||
"Set report state failed\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ssize_t enable_sensor_store(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
|
||||
int value;
|
||||
int ret = -EINVAL;
|
||||
|
||||
if (kstrtoint(buf, 0, &value) != 0)
|
||||
return -EINVAL;
|
||||
|
||||
mutex_lock(&sensor_inst->mutex);
|
||||
if (value && !sensor_inst->enable) {
|
||||
ret = sensor_hub_device_open(sensor_inst->hsdev);
|
||||
if (ret)
|
||||
goto unlock_state;
|
||||
|
||||
ret = set_power_report_state(sensor_inst, true);
|
||||
if (ret) {
|
||||
sensor_hub_device_close(sensor_inst->hsdev);
|
||||
goto unlock_state;
|
||||
}
|
||||
sensor_inst->enable = true;
|
||||
} else if (!value && sensor_inst->enable) {
|
||||
ret = set_power_report_state(sensor_inst, false);
|
||||
sensor_hub_device_close(sensor_inst->hsdev);
|
||||
sensor_inst->enable = false;
|
||||
}
|
||||
unlock_state:
|
||||
mutex_unlock(&sensor_inst->mutex);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
return count;
|
||||
}
|
||||
static DEVICE_ATTR_RW(enable_sensor);
|
||||
|
||||
static struct attribute *enable_sensor_attrs[] = {
|
||||
&dev_attr_enable_sensor.attr,
|
||||
NULL,
|
||||
};
|
||||
|
||||
static struct attribute_group enable_sensor_attr_group = {
|
||||
.attrs = enable_sensor_attrs,
|
||||
};
|
||||
|
||||
static ssize_t show_value(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
|
||||
struct hid_sensor_hub_attribute_info *attribute;
|
||||
int index, usage, field_index;
|
||||
char name[HID_CUSTOM_NAME_LENGTH];
|
||||
bool feature = false;
|
||||
bool input = false;
|
||||
int value = 0;
|
||||
|
||||
if (sscanf(attr->attr.name, "feature-%d-%x-%s", &index, &usage,
|
||||
name) == 3) {
|
||||
feature = true;
|
||||
field_index = index + sensor_inst->input_field_count;
|
||||
} else if (sscanf(attr->attr.name, "input-%d-%x-%s", &index, &usage,
|
||||
name) == 3) {
|
||||
input = true;
|
||||
field_index = index;
|
||||
} else
|
||||
return -EINVAL;
|
||||
|
||||
if (!strncmp(name, "value", strlen("value"))) {
|
||||
u32 report_id;
|
||||
int ret;
|
||||
|
||||
attribute = &sensor_inst->fields[field_index].attribute;
|
||||
report_id = attribute->report_id;
|
||||
if (feature) {
|
||||
u8 values[HID_CUSTOM_MAX_FEATURE_BYTES];
|
||||
int len = 0;
|
||||
u64 value = 0;
|
||||
int i = 0;
|
||||
|
||||
ret = sensor_hub_get_feature(sensor_inst->hsdev,
|
||||
report_id,
|
||||
index,
|
||||
sizeof(values), values);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
while (i < ret) {
|
||||
if (i + attribute->size > ret) {
|
||||
len += snprintf(&buf[len],
|
||||
PAGE_SIZE - len,
|
||||
"%d ", values[i]);
|
||||
break;
|
||||
}
|
||||
switch (attribute->size) {
|
||||
case 2:
|
||||
value = (u64) *(u16 *)&values[i];
|
||||
i += attribute->size;
|
||||
break;
|
||||
case 4:
|
||||
value = (u64) *(u32 *)&values[i];
|
||||
i += attribute->size;
|
||||
break;
|
||||
case 8:
|
||||
value = *(u64 *)&values[i];
|
||||
i += attribute->size;
|
||||
break;
|
||||
default:
|
||||
value = (u64) values[i];
|
||||
++i;
|
||||
break;
|
||||
}
|
||||
len += snprintf(&buf[len], PAGE_SIZE - len,
|
||||
"%lld ", value);
|
||||
}
|
||||
len += snprintf(&buf[len], PAGE_SIZE - len, "\n");
|
||||
|
||||
return len;
|
||||
} else if (input)
|
||||
value = sensor_hub_input_attr_get_raw_value(
|
||||
sensor_inst->hsdev,
|
||||
sensor_inst->hsdev->usage,
|
||||
usage, report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
} else if (!strncmp(name, "units", strlen("units")))
|
||||
value = sensor_inst->fields[field_index].attribute.units;
|
||||
else if (!strncmp(name, "unit-expo", strlen("unit-expo")))
|
||||
value = sensor_inst->fields[field_index].attribute.unit_expo;
|
||||
else if (!strncmp(name, "size", strlen("size")))
|
||||
value = sensor_inst->fields[field_index].attribute.size;
|
||||
else if (!strncmp(name, "minimum", strlen("minimum")))
|
||||
value = sensor_inst->fields[field_index].attribute.
|
||||
logical_minimum;
|
||||
else if (!strncmp(name, "maximum", strlen("maximum")))
|
||||
value = sensor_inst->fields[field_index].attribute.
|
||||
logical_maximum;
|
||||
else if (!strncmp(name, "name", strlen("name"))) {
|
||||
struct hid_custom_usage_desc *usage_desc;
|
||||
|
||||
usage_desc = bsearch(&usage, hid_custom_usage_desc_table,
|
||||
ARRAY_SIZE(hid_custom_usage_desc_table),
|
||||
sizeof(struct hid_custom_usage_desc),
|
||||
usage_id_cmp);
|
||||
if (usage_desc)
|
||||
return snprintf(buf, PAGE_SIZE, "%s\n",
|
||||
usage_desc->desc);
|
||||
else
|
||||
return sprintf(buf, "not-specified\n");
|
||||
} else
|
||||
return -EINVAL;
|
||||
|
||||
return sprintf(buf, "%d\n", value);
|
||||
}
|
||||
|
||||
static ssize_t store_value(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
|
||||
int index, field_index, usage;
|
||||
char name[HID_CUSTOM_NAME_LENGTH];
|
||||
int value;
|
||||
|
||||
if (sscanf(attr->attr.name, "feature-%d-%x-%s", &index, &usage,
|
||||
name) == 3) {
|
||||
field_index = index + sensor_inst->input_field_count;
|
||||
} else
|
||||
return -EINVAL;
|
||||
|
||||
if (!strncmp(name, "value", strlen("value"))) {
|
||||
u32 report_id;
|
||||
int ret;
|
||||
|
||||
if (kstrtoint(buf, 0, &value) != 0)
|
||||
return -EINVAL;
|
||||
|
||||
report_id = sensor_inst->fields[field_index].attribute.
|
||||
report_id;
|
||||
ret = sensor_hub_set_feature(sensor_inst->hsdev, report_id,
|
||||
index, sizeof(value), &value);
|
||||
} else
|
||||
return -EINVAL;
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
static int hid_sensor_capture_sample(struct hid_sensor_hub_device *hsdev,
|
||||
unsigned usage_id, size_t raw_len,
|
||||
char *raw_data, void *priv)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(priv);
|
||||
struct hid_sensor_sample header;
|
||||
|
||||
/* If any error occurs in a sample, rest of the fields are ignored */
|
||||
if (sensor_inst->input_skip_sample) {
|
||||
hid_err(sensor_inst->hsdev->hdev, "Skipped remaining data\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
hid_dbg(sensor_inst->hsdev->hdev, "%s received %d of %d\n", __func__,
|
||||
(int) (sensor_inst->input_report_recd_size + raw_len),
|
||||
sensor_inst->input_report_size);
|
||||
|
||||
if (!test_bit(0, &sensor_inst->misc_opened))
|
||||
return 0;
|
||||
|
||||
if (!sensor_inst->input_report_recd_size) {
|
||||
int required_size = sizeof(struct hid_sensor_sample) +
|
||||
sensor_inst->input_report_size;
|
||||
header.usage_id = hsdev->usage;
|
||||
header.raw_len = sensor_inst->input_report_size;
|
||||
header.timestamp = ktime_get_real_ns();
|
||||
if (kfifo_avail(&sensor_inst->data_fifo) >= required_size) {
|
||||
kfifo_in(&sensor_inst->data_fifo,
|
||||
(unsigned char *)&header,
|
||||
sizeof(header));
|
||||
} else
|
||||
sensor_inst->input_skip_sample = true;
|
||||
}
|
||||
if (kfifo_avail(&sensor_inst->data_fifo) >= raw_len)
|
||||
kfifo_in(&sensor_inst->data_fifo, (unsigned char *)raw_data,
|
||||
raw_len);
|
||||
|
||||
sensor_inst->input_report_recd_size += raw_len;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hid_sensor_send_event(struct hid_sensor_hub_device *hsdev,
|
||||
unsigned usage_id, void *priv)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(priv);
|
||||
|
||||
if (!test_bit(0, &sensor_inst->misc_opened))
|
||||
return 0;
|
||||
|
||||
sensor_inst->input_report_recd_size = 0;
|
||||
sensor_inst->input_skip_sample = false;
|
||||
|
||||
wake_up(&sensor_inst->wait);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_add_field(struct hid_sensor_custom *sensor_inst,
|
||||
int index, int report_type,
|
||||
struct hid_report *report,
|
||||
struct hid_field *field)
|
||||
{
|
||||
struct hid_sensor_custom_field *sensor_field;
|
||||
void *fields;
|
||||
|
||||
fields = krealloc(sensor_inst->fields,
|
||||
(sensor_inst->sensor_field_count + 1) *
|
||||
sizeof(struct hid_sensor_custom_field), GFP_KERNEL);
|
||||
if (!fields) {
|
||||
kfree(sensor_inst->fields);
|
||||
return -ENOMEM;
|
||||
}
|
||||
sensor_inst->fields = fields;
|
||||
sensor_field = &sensor_inst->fields[sensor_inst->sensor_field_count];
|
||||
sensor_field->attribute.usage_id = sensor_inst->hsdev->usage;
|
||||
if (field->logical)
|
||||
sensor_field->attribute.attrib_id = field->logical;
|
||||
else
|
||||
sensor_field->attribute.attrib_id = field->usage[0].hid;
|
||||
|
||||
sensor_field->attribute.index = index;
|
||||
sensor_field->attribute.report_id = report->id;
|
||||
sensor_field->attribute.units = field->unit;
|
||||
sensor_field->attribute.unit_expo = field->unit_exponent;
|
||||
sensor_field->attribute.size = (field->report_size / 8);
|
||||
sensor_field->attribute.logical_minimum = field->logical_minimum;
|
||||
sensor_field->attribute.logical_maximum = field->logical_maximum;
|
||||
|
||||
if (report_type == HID_FEATURE_REPORT)
|
||||
snprintf(sensor_field->group_name,
|
||||
sizeof(sensor_field->group_name), "feature-%x-%x",
|
||||
sensor_field->attribute.index,
|
||||
sensor_field->attribute.attrib_id);
|
||||
else if (report_type == HID_INPUT_REPORT) {
|
||||
snprintf(sensor_field->group_name,
|
||||
sizeof(sensor_field->group_name),
|
||||
"input-%x-%x", sensor_field->attribute.index,
|
||||
sensor_field->attribute.attrib_id);
|
||||
sensor_inst->input_field_count++;
|
||||
sensor_inst->input_report_size += (field->report_size *
|
||||
field->report_count) / 8;
|
||||
}
|
||||
|
||||
memset(&sensor_field->hid_custom_attribute_group, 0,
|
||||
sizeof(struct attribute_group));
|
||||
sensor_inst->sensor_field_count++;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_add_fields(struct hid_sensor_custom *sensor_inst,
|
||||
struct hid_report_enum *report_enum,
|
||||
int report_type)
|
||||
{
|
||||
int i;
|
||||
int ret;
|
||||
struct hid_report *report;
|
||||
struct hid_field *field;
|
||||
struct hid_sensor_hub_device *hsdev = sensor_inst->hsdev;
|
||||
|
||||
list_for_each_entry(report, &report_enum->report_list, list) {
|
||||
for (i = 0; i < report->maxfield; ++i) {
|
||||
field = report->field[i];
|
||||
if (field->maxusage &&
|
||||
((field->usage[0].collection_index >=
|
||||
hsdev->start_collection_index) &&
|
||||
(field->usage[0].collection_index <
|
||||
hsdev->end_collection_index))) {
|
||||
|
||||
ret = hid_sensor_custom_add_field(sensor_inst,
|
||||
i,
|
||||
report_type,
|
||||
report,
|
||||
field);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_add_attributes(struct hid_sensor_custom
|
||||
*sensor_inst)
|
||||
{
|
||||
struct hid_sensor_hub_device *hsdev = sensor_inst->hsdev;
|
||||
struct hid_device *hdev = hsdev->hdev;
|
||||
int ret = -1;
|
||||
int i, j;
|
||||
|
||||
for (j = 0; j < HID_REPORT_TYPES; ++j) {
|
||||
if (j == HID_OUTPUT_REPORT)
|
||||
continue;
|
||||
|
||||
ret = hid_sensor_custom_add_fields(sensor_inst,
|
||||
&hdev->report_enum[j], j);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
}
|
||||
|
||||
/* Create sysfs attributes */
|
||||
for (i = 0; i < sensor_inst->sensor_field_count; ++i) {
|
||||
j = 0;
|
||||
while (j < HID_CUSTOM_TOTAL_ATTRS &&
|
||||
hid_custom_attrs[j].name) {
|
||||
struct device_attribute *device_attr;
|
||||
|
||||
device_attr = &sensor_inst->fields[i].sd_attrs[j];
|
||||
|
||||
snprintf((char *)&sensor_inst->fields[i].attr_name[j],
|
||||
HID_CUSTOM_NAME_LENGTH, "%s-%s",
|
||||
sensor_inst->fields[i].group_name,
|
||||
hid_custom_attrs[j].name);
|
||||
sysfs_attr_init(&device_attr->attr);
|
||||
device_attr->attr.name =
|
||||
(char *)&sensor_inst->fields[i].attr_name[j];
|
||||
device_attr->attr.mode = hid_custom_attrs[j].mode;
|
||||
device_attr->show = show_value;
|
||||
if (hid_custom_attrs[j].mode & S_IWUSR)
|
||||
device_attr->store = store_value;
|
||||
sensor_inst->fields[i].attrs[j] = &device_attr->attr;
|
||||
++j;
|
||||
}
|
||||
sensor_inst->fields[i].attrs[j] = NULL;
|
||||
sensor_inst->fields[i].hid_custom_attribute_group.attrs =
|
||||
sensor_inst->fields[i].attrs;
|
||||
sensor_inst->fields[i].hid_custom_attribute_group.name =
|
||||
sensor_inst->fields[i].group_name;
|
||||
ret = sysfs_create_group(&sensor_inst->pdev->dev.kobj,
|
||||
&sensor_inst->fields[i].
|
||||
hid_custom_attribute_group);
|
||||
if (ret)
|
||||
break;
|
||||
|
||||
/* For power or report field store indexes */
|
||||
if (sensor_inst->fields[i].attribute.attrib_id ==
|
||||
HID_USAGE_SENSOR_PROY_POWER_STATE)
|
||||
sensor_inst->power_state = &sensor_inst->fields[i];
|
||||
else if (sensor_inst->fields[i].attribute.attrib_id ==
|
||||
HID_USAGE_SENSOR_PROP_REPORT_STATE)
|
||||
sensor_inst->report_state = &sensor_inst->fields[i];
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void hid_sensor_custom_remove_attributes(struct hid_sensor_custom *
|
||||
sensor_inst)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < sensor_inst->sensor_field_count; ++i)
|
||||
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
|
||||
&sensor_inst->fields[i].
|
||||
hid_custom_attribute_group);
|
||||
|
||||
kfree(sensor_inst->fields);
|
||||
}
|
||||
|
||||
static ssize_t hid_sensor_custom_read(struct file *file, char __user *buf,
|
||||
size_t count, loff_t *f_ps)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst;
|
||||
unsigned int copied;
|
||||
int ret;
|
||||
|
||||
sensor_inst = container_of(file->private_data,
|
||||
struct hid_sensor_custom, custom_dev);
|
||||
|
||||
if (count < sizeof(struct hid_sensor_sample))
|
||||
return -EINVAL;
|
||||
|
||||
do {
|
||||
if (kfifo_is_empty(&sensor_inst->data_fifo)) {
|
||||
if (file->f_flags & O_NONBLOCK)
|
||||
return -EAGAIN;
|
||||
|
||||
ret = wait_event_interruptible(sensor_inst->wait,
|
||||
!kfifo_is_empty(&sensor_inst->data_fifo));
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
ret = kfifo_to_user(&sensor_inst->data_fifo, buf, count,
|
||||
&copied);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
} while (copied == 0);
|
||||
|
||||
return copied;
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst;
|
||||
|
||||
sensor_inst = container_of(file->private_data,
|
||||
struct hid_sensor_custom, custom_dev);
|
||||
|
||||
clear_bit(0, &sensor_inst->misc_opened);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst;
|
||||
|
||||
sensor_inst = container_of(file->private_data,
|
||||
struct hid_sensor_custom, custom_dev);
|
||||
/* We essentially have single reader and writer */
|
||||
if (test_and_set_bit(0, &sensor_inst->misc_opened))
|
||||
return -EBUSY;
|
||||
|
||||
return nonseekable_open(inode, file);
|
||||
}
|
||||
|
||||
static unsigned int hid_sensor_custom_poll(struct file *file,
|
||||
struct poll_table_struct *wait)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst;
|
||||
unsigned int mask = 0;
|
||||
|
||||
sensor_inst = container_of(file->private_data,
|
||||
struct hid_sensor_custom, custom_dev);
|
||||
|
||||
poll_wait(file, &sensor_inst->wait, wait);
|
||||
|
||||
if (!kfifo_is_empty(&sensor_inst->data_fifo))
|
||||
mask = POLLIN | POLLRDNORM;
|
||||
|
||||
return mask;
|
||||
}
|
||||
|
||||
static const struct file_operations hid_sensor_custom_fops = {
|
||||
.open = hid_sensor_custom_open,
|
||||
.read = hid_sensor_custom_read,
|
||||
.release = hid_sensor_custom_release,
|
||||
.poll = hid_sensor_custom_poll,
|
||||
.llseek = noop_llseek,
|
||||
};
|
||||
|
||||
static int hid_sensor_custom_dev_if_add(struct hid_sensor_custom *sensor_inst)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = kfifo_alloc(&sensor_inst->data_fifo, HID_CUSTOM_FIFO_SIZE,
|
||||
GFP_KERNEL);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
init_waitqueue_head(&sensor_inst->wait);
|
||||
|
||||
sensor_inst->custom_dev.minor = MISC_DYNAMIC_MINOR;
|
||||
sensor_inst->custom_dev.name = dev_name(&sensor_inst->pdev->dev);
|
||||
sensor_inst->custom_dev.fops = &hid_sensor_custom_fops,
|
||||
ret = misc_register(&sensor_inst->custom_dev);
|
||||
if (ret) {
|
||||
kfifo_free(&sensor_inst->data_fifo);
|
||||
return ret;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void hid_sensor_custom_dev_if_remove(struct hid_sensor_custom
|
||||
*sensor_inst)
|
||||
{
|
||||
wake_up(&sensor_inst->wait);
|
||||
misc_deregister(&sensor_inst->custom_dev);
|
||||
kfifo_free(&sensor_inst->data_fifo);
|
||||
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst;
|
||||
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
|
||||
int ret;
|
||||
|
||||
sensor_inst = devm_kzalloc(&pdev->dev, sizeof(*sensor_inst),
|
||||
GFP_KERNEL);
|
||||
if (!sensor_inst)
|
||||
return -ENOMEM;
|
||||
|
||||
sensor_inst->callbacks.capture_sample = hid_sensor_capture_sample;
|
||||
sensor_inst->callbacks.send_event = hid_sensor_send_event;
|
||||
sensor_inst->callbacks.pdev = pdev;
|
||||
sensor_inst->hsdev = hsdev;
|
||||
sensor_inst->pdev = pdev;
|
||||
mutex_init(&sensor_inst->mutex);
|
||||
platform_set_drvdata(pdev, sensor_inst);
|
||||
ret = sensor_hub_register_callback(hsdev, hsdev->usage,
|
||||
&sensor_inst->callbacks);
|
||||
if (ret < 0) {
|
||||
dev_err(&pdev->dev, "callback reg failed\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = sysfs_create_group(&sensor_inst->pdev->dev.kobj,
|
||||
&enable_sensor_attr_group);
|
||||
if (ret)
|
||||
goto err_remove_callback;
|
||||
|
||||
ret = hid_sensor_custom_add_attributes(sensor_inst);
|
||||
if (ret)
|
||||
goto err_remove_group;
|
||||
|
||||
ret = hid_sensor_custom_dev_if_add(sensor_inst);
|
||||
if (ret)
|
||||
goto err_remove_attributes;
|
||||
|
||||
return 0;
|
||||
|
||||
err_remove_attributes:
|
||||
hid_sensor_custom_remove_attributes(sensor_inst);
|
||||
err_remove_group:
|
||||
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
|
||||
&enable_sensor_attr_group);
|
||||
err_remove_callback:
|
||||
sensor_hub_remove_callback(hsdev, hsdev->usage);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int hid_sensor_custom_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
|
||||
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
|
||||
|
||||
hid_sensor_custom_dev_if_remove(sensor_inst);
|
||||
hid_sensor_custom_remove_attributes(sensor_inst);
|
||||
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
|
||||
&enable_sensor_attr_group);
|
||||
sensor_hub_remove_callback(hsdev, hsdev->usage);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_device_id hid_sensor_custom_ids[] = {
|
||||
{
|
||||
.name = "HID-SENSOR-2000e1",
|
||||
},
|
||||
{
|
||||
.name = "HID-SENSOR-2000e2",
|
||||
},
|
||||
{ /* sentinel */ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, hid_sensor_custom_ids);
|
||||
|
||||
static struct platform_driver hid_sensor_custom_platform_driver = {
|
||||
.id_table = hid_sensor_custom_ids,
|
||||
.driver = {
|
||||
.name = KBUILD_MODNAME,
|
||||
},
|
||||
.probe = hid_sensor_custom_probe,
|
||||
.remove = hid_sensor_custom_remove,
|
||||
};
|
||||
module_platform_driver(hid_sensor_custom_platform_driver);
|
||||
|
||||
MODULE_DESCRIPTION("HID Sensor Custom and Generic sensor Driver");
|
||||
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
|
||||
MODULE_LICENSE("GPL");
|
|
@ -28,30 +28,11 @@
|
|||
|
||||
#define HID_SENSOR_HUB_ENUM_QUIRK 0x01
|
||||
|
||||
/**
|
||||
* struct sensor_hub_pending - Synchronous read pending information
|
||||
* @status: Pending status true/false.
|
||||
* @ready: Completion synchronization data.
|
||||
* @usage_id: Usage id for physical device, E.g. Gyro usage id.
|
||||
* @attr_usage_id: Usage Id of a field, E.g. X-AXIS for a gyro.
|
||||
* @raw_size: Response size for a read request.
|
||||
* @raw_data: Place holder for received response.
|
||||
*/
|
||||
struct sensor_hub_pending {
|
||||
bool status;
|
||||
struct completion ready;
|
||||
u32 usage_id;
|
||||
u32 attr_usage_id;
|
||||
int raw_size;
|
||||
u8 *raw_data;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct sensor_hub_data - Hold a instance data for a HID hub device
|
||||
* @hsdev: Stored hid instance for current hub device.
|
||||
* @mutex: Mutex to serialize synchronous request.
|
||||
* @lock: Spin lock to protect pending request structure.
|
||||
* @pending: Holds information of pending sync read request.
|
||||
* @dyn_callback_list: Holds callback function
|
||||
* @dyn_callback_lock: spin lock to protect callback list
|
||||
* @hid_sensor_hub_client_devs: Stores all MFD cells for a hub instance.
|
||||
|
@ -61,7 +42,6 @@ struct sensor_hub_pending {
|
|||
struct sensor_hub_data {
|
||||
struct mutex mutex;
|
||||
spinlock_t lock;
|
||||
struct sensor_hub_pending pending;
|
||||
struct list_head dyn_callback_list;
|
||||
spinlock_t dyn_callback_lock;
|
||||
struct mfd_cell *hid_sensor_hub_client_devs;
|
||||
|
@ -106,7 +86,8 @@ static int sensor_hub_get_physical_device_count(struct hid_device *hdev)
|
|||
|
||||
for (i = 0; i < hdev->maxcollection; ++i) {
|
||||
struct hid_collection *collection = &hdev->collection[i];
|
||||
if (collection->type == HID_COLLECTION_PHYSICAL)
|
||||
if (collection->type == HID_COLLECTION_PHYSICAL ||
|
||||
collection->type == HID_COLLECTION_APPLICATION)
|
||||
++count;
|
||||
}
|
||||
|
||||
|
@ -139,7 +120,8 @@ static struct hid_sensor_hub_callbacks *sensor_hub_get_callback(
|
|||
|
||||
spin_lock_irqsave(&pdata->dyn_callback_lock, flags);
|
||||
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
|
||||
if (callback->usage_id == usage_id &&
|
||||
if ((callback->usage_id == usage_id ||
|
||||
callback->usage_id == HID_USAGE_SENSOR_COLLECTION) &&
|
||||
(collection_index >=
|
||||
callback->hsdev->start_collection_index) &&
|
||||
(collection_index <
|
||||
|
@ -179,7 +161,18 @@ int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev,
|
|||
callback->usage_callback = usage_callback;
|
||||
callback->usage_id = usage_id;
|
||||
callback->priv = NULL;
|
||||
list_add_tail(&callback->list, &pdata->dyn_callback_list);
|
||||
/*
|
||||
* If there is a handler registered for the collection type, then
|
||||
* it will handle all reports for sensors in this collection. If
|
||||
* there is also an individual sensor handler registration, then
|
||||
* we want to make sure that the reports are directed to collection
|
||||
* handler, as this may be a fusion sensor. So add collection handlers
|
||||
* to the beginning of the list, so that they are matched first.
|
||||
*/
|
||||
if (usage_id == HID_USAGE_SENSOR_COLLECTION)
|
||||
list_add(&callback->list, &pdata->dyn_callback_list);
|
||||
else
|
||||
list_add_tail(&callback->list, &pdata->dyn_callback_list);
|
||||
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
|
||||
|
||||
return 0;
|
||||
|
@ -208,10 +201,14 @@ int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
|
|||
EXPORT_SYMBOL_GPL(sensor_hub_remove_callback);
|
||||
|
||||
int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
|
||||
u32 field_index, s32 value)
|
||||
u32 field_index, int buffer_size, void *buffer)
|
||||
{
|
||||
struct hid_report *report;
|
||||
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
|
||||
__s32 *buf32 = buffer;
|
||||
int i = 0;
|
||||
int remaining_bytes;
|
||||
__s32 value;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&data->mutex);
|
||||
|
@ -220,7 +217,21 @@ int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
|
|||
ret = -EINVAL;
|
||||
goto done_proc;
|
||||
}
|
||||
hid_set_field(report->field[field_index], 0, value);
|
||||
|
||||
remaining_bytes = do_div(buffer_size, sizeof(__s32));
|
||||
if (buffer_size) {
|
||||
for (i = 0; i < buffer_size; ++i) {
|
||||
hid_set_field(report->field[field_index], i,
|
||||
(__force __s32)cpu_to_le32(*buf32));
|
||||
++buf32;
|
||||
}
|
||||
}
|
||||
if (remaining_bytes) {
|
||||
value = 0;
|
||||
memcpy(&value, (u8 *)buf32, remaining_bytes);
|
||||
hid_set_field(report->field[field_index], i,
|
||||
(__force __s32)cpu_to_le32(value));
|
||||
}
|
||||
hid_hw_request(hsdev->hdev, report, HID_REQ_SET_REPORT);
|
||||
hid_hw_wait(hsdev->hdev);
|
||||
|
||||
|
@ -232,10 +243,11 @@ done_proc:
|
|||
EXPORT_SYMBOL_GPL(sensor_hub_set_feature);
|
||||
|
||||
int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
|
||||
u32 field_index, s32 *value)
|
||||
u32 field_index, int buffer_size, void *buffer)
|
||||
{
|
||||
struct hid_report *report;
|
||||
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
|
||||
int report_size;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&data->mutex);
|
||||
|
@ -247,7 +259,17 @@ int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
|
|||
}
|
||||
hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
|
||||
hid_hw_wait(hsdev->hdev);
|
||||
*value = report->field[field_index]->value[0];
|
||||
|
||||
/* calculate number of bytes required to read this field */
|
||||
report_size = DIV_ROUND_UP(report->field[field_index]->report_size,
|
||||
8) *
|
||||
report->field[field_index]->report_count;
|
||||
if (!report_size) {
|
||||
ret = -EINVAL;
|
||||
goto done_proc;
|
||||
}
|
||||
ret = min(report_size, buffer_size);
|
||||
memcpy(buffer, report->field[field_index]->value, ret);
|
||||
|
||||
done_proc:
|
||||
mutex_unlock(&data->mutex);
|
||||
|
@ -259,47 +281,54 @@ EXPORT_SYMBOL_GPL(sensor_hub_get_feature);
|
|||
|
||||
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
|
||||
u32 usage_id,
|
||||
u32 attr_usage_id, u32 report_id)
|
||||
u32 attr_usage_id, u32 report_id,
|
||||
enum sensor_hub_read_flags flag)
|
||||
{
|
||||
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
|
||||
unsigned long flags;
|
||||
struct hid_report *report;
|
||||
int ret_val = 0;
|
||||
|
||||
mutex_lock(&data->mutex);
|
||||
memset(&data->pending, 0, sizeof(data->pending));
|
||||
init_completion(&data->pending.ready);
|
||||
data->pending.usage_id = usage_id;
|
||||
data->pending.attr_usage_id = attr_usage_id;
|
||||
data->pending.raw_size = 0;
|
||||
|
||||
spin_lock_irqsave(&data->lock, flags);
|
||||
data->pending.status = true;
|
||||
spin_unlock_irqrestore(&data->lock, flags);
|
||||
report = sensor_hub_report(report_id, hsdev->hdev, HID_INPUT_REPORT);
|
||||
report = sensor_hub_report(report_id, hsdev->hdev,
|
||||
HID_INPUT_REPORT);
|
||||
if (!report)
|
||||
goto err_free;
|
||||
return -EINVAL;
|
||||
|
||||
hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
|
||||
wait_for_completion_interruptible_timeout(&data->pending.ready, HZ*5);
|
||||
switch (data->pending.raw_size) {
|
||||
case 1:
|
||||
ret_val = *(u8 *)data->pending.raw_data;
|
||||
break;
|
||||
case 2:
|
||||
ret_val = *(u16 *)data->pending.raw_data;
|
||||
break;
|
||||
case 4:
|
||||
ret_val = *(u32 *)data->pending.raw_data;
|
||||
break;
|
||||
default:
|
||||
ret_val = 0;
|
||||
mutex_lock(&hsdev->mutex);
|
||||
if (flag == SENSOR_HUB_SYNC) {
|
||||
memset(&hsdev->pending, 0, sizeof(hsdev->pending));
|
||||
init_completion(&hsdev->pending.ready);
|
||||
hsdev->pending.usage_id = usage_id;
|
||||
hsdev->pending.attr_usage_id = attr_usage_id;
|
||||
hsdev->pending.raw_size = 0;
|
||||
|
||||
spin_lock_irqsave(&data->lock, flags);
|
||||
hsdev->pending.status = true;
|
||||
spin_unlock_irqrestore(&data->lock, flags);
|
||||
}
|
||||
kfree(data->pending.raw_data);
|
||||
|
||||
err_free:
|
||||
data->pending.status = false;
|
||||
mutex_lock(&data->mutex);
|
||||
hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
|
||||
mutex_unlock(&data->mutex);
|
||||
if (flag == SENSOR_HUB_SYNC) {
|
||||
wait_for_completion_interruptible_timeout(
|
||||
&hsdev->pending.ready, HZ*5);
|
||||
switch (hsdev->pending.raw_size) {
|
||||
case 1:
|
||||
ret_val = *(u8 *)hsdev->pending.raw_data;
|
||||
break;
|
||||
case 2:
|
||||
ret_val = *(u16 *)hsdev->pending.raw_data;
|
||||
break;
|
||||
case 4:
|
||||
ret_val = *(u32 *)hsdev->pending.raw_data;
|
||||
break;
|
||||
default:
|
||||
ret_val = 0;
|
||||
}
|
||||
kfree(hsdev->pending.raw_data);
|
||||
hsdev->pending.status = false;
|
||||
}
|
||||
mutex_unlock(&hsdev->mutex);
|
||||
|
||||
return ret_val;
|
||||
}
|
||||
|
@ -455,16 +484,6 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
|
|||
report->field[i]->report_count)/8);
|
||||
sz = (report->field[i]->report_size *
|
||||
report->field[i]->report_count)/8;
|
||||
if (pdata->pending.status && pdata->pending.attr_usage_id ==
|
||||
report->field[i]->usage->hid) {
|
||||
hid_dbg(hdev, "data was pending ...\n");
|
||||
pdata->pending.raw_data = kmemdup(ptr, sz, GFP_ATOMIC);
|
||||
if (pdata->pending.raw_data)
|
||||
pdata->pending.raw_size = sz;
|
||||
else
|
||||
pdata->pending.raw_size = 0;
|
||||
complete(&pdata->pending.ready);
|
||||
}
|
||||
collection = &hdev->collection[
|
||||
report->field[i]->usage->collection_index];
|
||||
hid_dbg(hdev, "collection->usage %x\n",
|
||||
|
@ -474,8 +493,23 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
|
|||
report->field[i]->physical,
|
||||
report->field[i]->usage[0].collection_index,
|
||||
&hsdev, &priv);
|
||||
|
||||
if (callback && callback->capture_sample) {
|
||||
if (!callback) {
|
||||
ptr += sz;
|
||||
continue;
|
||||
}
|
||||
if (hsdev->pending.status && (hsdev->pending.attr_usage_id ==
|
||||
report->field[i]->usage->hid ||
|
||||
hsdev->pending.attr_usage_id ==
|
||||
report->field[i]->logical)) {
|
||||
hid_dbg(hdev, "data was pending ...\n");
|
||||
hsdev->pending.raw_data = kmemdup(ptr, sz, GFP_ATOMIC);
|
||||
if (hsdev->pending.raw_data)
|
||||
hsdev->pending.raw_size = sz;
|
||||
else
|
||||
hsdev->pending.raw_size = 0;
|
||||
complete(&hsdev->pending.ready);
|
||||
}
|
||||
if (callback->capture_sample) {
|
||||
if (report->field[i]->logical)
|
||||
callback->capture_sample(hsdev,
|
||||
report->field[i]->logical, sz, ptr,
|
||||
|
@ -572,6 +606,7 @@ static int sensor_hub_probe(struct hid_device *hdev,
|
|||
int dev_cnt;
|
||||
struct hid_sensor_hub_device *hsdev;
|
||||
struct hid_sensor_hub_device *last_hsdev = NULL;
|
||||
struct hid_sensor_hub_device *collection_hsdev = NULL;
|
||||
|
||||
sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL);
|
||||
if (!sd) {
|
||||
|
@ -618,7 +653,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
|
|||
for (i = 0; i < hdev->maxcollection; ++i) {
|
||||
struct hid_collection *collection = &hdev->collection[i];
|
||||
|
||||
if (collection->type == HID_COLLECTION_PHYSICAL) {
|
||||
if (collection->type == HID_COLLECTION_PHYSICAL ||
|
||||
collection->type == HID_COLLECTION_APPLICATION) {
|
||||
|
||||
hsdev = devm_kzalloc(&hdev->dev, sizeof(*hsdev),
|
||||
GFP_KERNEL);
|
||||
|
@ -630,6 +666,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
|
|||
hsdev->hdev = hdev;
|
||||
hsdev->vendor_id = hdev->vendor;
|
||||
hsdev->product_id = hdev->product;
|
||||
hsdev->usage = collection->usage;
|
||||
mutex_init(&hsdev->mutex);
|
||||
hsdev->start_collection_index = i;
|
||||
if (last_hsdev)
|
||||
last_hsdev->end_collection_index = i;
|
||||
|
@ -653,10 +691,17 @@ static int sensor_hub_probe(struct hid_device *hdev,
|
|||
hid_dbg(hdev, "Adding %s:%d\n", name,
|
||||
hsdev->start_collection_index);
|
||||
sd->hid_sensor_client_cnt++;
|
||||
if (collection_hsdev)
|
||||
collection_hsdev->end_collection_index = i;
|
||||
if (collection->type == HID_COLLECTION_APPLICATION &&
|
||||
collection->usage == HID_USAGE_SENSOR_COLLECTION)
|
||||
collection_hsdev = hsdev;
|
||||
}
|
||||
}
|
||||
if (last_hsdev)
|
||||
last_hsdev->end_collection_index = i;
|
||||
if (collection_hsdev)
|
||||
collection_hsdev->end_collection_index = i;
|
||||
|
||||
ret = mfd_add_hotplug_devices(&hdev->dev,
|
||||
sd->hid_sensor_hub_client_devs,
|
||||
|
@ -676,13 +721,18 @@ static void sensor_hub_remove(struct hid_device *hdev)
|
|||
{
|
||||
struct sensor_hub_data *data = hid_get_drvdata(hdev);
|
||||
unsigned long flags;
|
||||
int i;
|
||||
|
||||
hid_dbg(hdev, " hardware removed\n");
|
||||
hid_hw_close(hdev);
|
||||
hid_hw_stop(hdev);
|
||||
spin_lock_irqsave(&data->lock, flags);
|
||||
if (data->pending.status)
|
||||
complete(&data->pending.ready);
|
||||
for (i = 0; i < data->hid_sensor_client_cnt; ++i) {
|
||||
struct hid_sensor_hub_device *hsdev =
|
||||
data->hid_sensor_hub_client_devs[i].platform_data;
|
||||
if (hsdev->pending.status)
|
||||
complete(&hsdev->pending.ready);
|
||||
}
|
||||
spin_unlock_irqrestore(&data->lock, flags);
|
||||
mfd_remove_devices(&hdev->dev);
|
||||
hid_set_drvdata(hdev, NULL);
|
||||
|
|
|
@ -123,7 +123,8 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
accel_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_ACCEL_3D, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
else {
|
||||
*val = 0;
|
||||
hid_sensor_power_state(&accel_state->common_attributes,
|
||||
|
|
|
@ -153,8 +153,8 @@ s32 hid_sensor_read_poll_value(struct hid_sensor_common *st)
|
|||
int ret;
|
||||
|
||||
ret = sensor_hub_get_feature(st->hsdev,
|
||||
st->poll.report_id,
|
||||
st->poll.index, &value);
|
||||
st->poll.report_id,
|
||||
st->poll.index, sizeof(value), &value);
|
||||
|
||||
if (ret < 0 || value < 0) {
|
||||
return -EINVAL;
|
||||
|
@ -174,8 +174,8 @@ int hid_sensor_read_samp_freq_value(struct hid_sensor_common *st,
|
|||
int ret;
|
||||
|
||||
ret = sensor_hub_get_feature(st->hsdev,
|
||||
st->poll.report_id,
|
||||
st->poll.index, &value);
|
||||
st->poll.report_id,
|
||||
st->poll.index, sizeof(value), &value);
|
||||
if (ret < 0 || value < 0) {
|
||||
*val1 = *val2 = 0;
|
||||
return -EINVAL;
|
||||
|
@ -212,9 +212,8 @@ int hid_sensor_write_samp_freq_value(struct hid_sensor_common *st,
|
|||
else
|
||||
value = 0;
|
||||
}
|
||||
ret = sensor_hub_set_feature(st->hsdev,
|
||||
st->poll.report_id,
|
||||
st->poll.index, value);
|
||||
ret = sensor_hub_set_feature(st->hsdev, st->poll.report_id,
|
||||
st->poll.index, sizeof(value), &value);
|
||||
if (ret < 0 || value < 0)
|
||||
ret = -EINVAL;
|
||||
|
||||
|
@ -229,8 +228,9 @@ int hid_sensor_read_raw_hyst_value(struct hid_sensor_common *st,
|
|||
int ret;
|
||||
|
||||
ret = sensor_hub_get_feature(st->hsdev,
|
||||
st->sensitivity.report_id,
|
||||
st->sensitivity.index, &value);
|
||||
st->sensitivity.report_id,
|
||||
st->sensitivity.index, sizeof(value),
|
||||
&value);
|
||||
if (ret < 0 || value < 0) {
|
||||
*val1 = *val2 = 0;
|
||||
return -EINVAL;
|
||||
|
@ -253,9 +253,9 @@ int hid_sensor_write_raw_hyst_value(struct hid_sensor_common *st,
|
|||
value = convert_to_vtf_format(st->sensitivity.size,
|
||||
st->sensitivity.unit_expo,
|
||||
val1, val2);
|
||||
ret = sensor_hub_set_feature(st->hsdev,
|
||||
st->sensitivity.report_id,
|
||||
st->sensitivity.index, value);
|
||||
ret = sensor_hub_set_feature(st->hsdev, st->sensitivity.report_id,
|
||||
st->sensitivity.index, sizeof(value),
|
||||
&value);
|
||||
if (ret < 0 || value < 0)
|
||||
ret = -EINVAL;
|
||||
|
||||
|
|
|
@ -68,20 +68,21 @@ static int _hid_sensor_power_state(struct hid_sensor_common *st, bool state)
|
|||
if (state_val >= 0) {
|
||||
state_val += st->power_state.logical_minimum;
|
||||
sensor_hub_set_feature(st->hsdev, st->power_state.report_id,
|
||||
st->power_state.index,
|
||||
(s32)state_val);
|
||||
st->power_state.index, sizeof(state_val),
|
||||
&state_val);
|
||||
}
|
||||
|
||||
if (report_val >= 0) {
|
||||
report_val += st->report_state.logical_minimum;
|
||||
sensor_hub_set_feature(st->hsdev, st->report_state.report_id,
|
||||
st->report_state.index,
|
||||
(s32)report_val);
|
||||
st->report_state.index,
|
||||
sizeof(report_val),
|
||||
&report_val);
|
||||
}
|
||||
|
||||
sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
|
||||
st->power_state.index,
|
||||
&state_val);
|
||||
st->power_state.index,
|
||||
sizeof(state_val), &state_val);
|
||||
if (state && poll_value)
|
||||
msleep_interruptible(poll_value * 2);
|
||||
|
||||
|
|
|
@ -123,7 +123,8 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
gyro_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_GYRO_3D, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
else {
|
||||
*val = 0;
|
||||
hid_sensor_power_state(&gyro_state->common_attributes,
|
||||
|
|
|
@ -101,7 +101,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
als_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_ALS, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
hid_sensor_power_state(&als_state->common_attributes,
|
||||
false);
|
||||
} else {
|
||||
|
|
|
@ -96,7 +96,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
prox_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_PROX, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
hid_sensor_power_state(&prox_state->common_attributes,
|
||||
false);
|
||||
} else {
|
||||
|
|
|
@ -170,7 +170,8 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
magn_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_COMPASS_3D, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
else {
|
||||
*val = 0;
|
||||
hid_sensor_power_state(&magn_state->common_attributes,
|
||||
|
|
|
@ -124,7 +124,8 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
incl_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_INCLINOMETER_3D, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
else {
|
||||
hid_sensor_power_state(&incl_state->common_attributes,
|
||||
false);
|
||||
|
|
|
@ -100,7 +100,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
|
|||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
press_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_PRESSURE, address,
|
||||
report_id);
|
||||
report_id,
|
||||
SENSOR_HUB_SYNC);
|
||||
hid_sensor_power_state(&press_state->common_attributes,
|
||||
false);
|
||||
} else {
|
||||
|
|
|
@ -213,7 +213,7 @@ static int hid_rtc_read_time(struct device *dev, struct rtc_time *tm)
|
|||
/* get a report with all values through requesting one value */
|
||||
sensor_hub_input_attr_get_raw_value(time_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_TIME, hid_time_addresses[0],
|
||||
time_state->info[0].report_id);
|
||||
time_state->info[0].report_id, SENSOR_HUB_SYNC);
|
||||
/* wait for all values (event) */
|
||||
ret = wait_for_completion_killable_timeout(
|
||||
&time_state->comp_last_time, HZ*6);
|
||||
|
|
|
@ -48,20 +48,44 @@ struct hid_sensor_hub_attribute_info {
|
|||
s32 logical_maximum;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct sensor_hub_pending - Synchronous read pending information
|
||||
* @status: Pending status true/false.
|
||||
* @ready: Completion synchronization data.
|
||||
* @usage_id: Usage id for physical device, E.g. Gyro usage id.
|
||||
* @attr_usage_id: Usage Id of a field, E.g. X-AXIS for a gyro.
|
||||
* @raw_size: Response size for a read request.
|
||||
* @raw_data: Place holder for received response.
|
||||
*/
|
||||
struct sensor_hub_pending {
|
||||
bool status;
|
||||
struct completion ready;
|
||||
u32 usage_id;
|
||||
u32 attr_usage_id;
|
||||
int raw_size;
|
||||
u8 *raw_data;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct hid_sensor_hub_device - Stores the hub instance data
|
||||
* @hdev: Stores the hid instance.
|
||||
* @vendor_id: Vendor id of hub device.
|
||||
* @product_id: Product id of hub device.
|
||||
* @usage: Usage id for this hub device instance.
|
||||
* @start_collection_index: Starting index for a phy type collection
|
||||
* @end_collection_index: Last index for a phy type collection
|
||||
* @mutex: synchronizing mutex.
|
||||
* @pending: Holds information of pending sync read request.
|
||||
*/
|
||||
struct hid_sensor_hub_device {
|
||||
struct hid_device *hdev;
|
||||
u32 vendor_id;
|
||||
u32 product_id;
|
||||
u32 usage;
|
||||
int start_collection_index;
|
||||
int end_collection_index;
|
||||
struct mutex mutex;
|
||||
struct sensor_hub_pending pending;
|
||||
};
|
||||
|
||||
/**
|
||||
|
@ -152,40 +176,51 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
|
|||
* @usage_id: Attribute usage id of parent physical device as per spec
|
||||
* @attr_usage_id: Attribute usage id as per spec
|
||||
* @report_id: Report id to look for
|
||||
* @flag: Synchronous or asynchronous read
|
||||
*
|
||||
* Issues a synchronous read request for an input attribute. Returns
|
||||
* data upto 32 bits. Since client can get events, so this call should
|
||||
* not be used for data paths, this will impact performance.
|
||||
* Issues a synchronous or asynchronous read request for an input attribute.
|
||||
* Returns data upto 32 bits.
|
||||
*/
|
||||
|
||||
enum sensor_hub_read_flags {
|
||||
SENSOR_HUB_SYNC,
|
||||
SENSOR_HUB_ASYNC,
|
||||
};
|
||||
|
||||
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
|
||||
u32 usage_id,
|
||||
u32 attr_usage_id, u32 report_id);
|
||||
u32 usage_id,
|
||||
u32 attr_usage_id, u32 report_id,
|
||||
enum sensor_hub_read_flags flag
|
||||
);
|
||||
|
||||
/**
|
||||
* sensor_hub_set_feature() - Feature set request
|
||||
* @hsdev: Hub device instance.
|
||||
* @report_id: Report id to look for
|
||||
* @field_index: Field index inside a report
|
||||
* @value: Value to set
|
||||
* @buffer_size: size of the buffer
|
||||
* @buffer: buffer to use in the feature set
|
||||
*
|
||||
* Used to set a field in feature report. For example this can set polling
|
||||
* interval, sensitivity, activate/deactivate state.
|
||||
*/
|
||||
int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
|
||||
u32 field_index, s32 value);
|
||||
u32 field_index, int buffer_size, void *buffer);
|
||||
|
||||
/**
|
||||
* sensor_hub_get_feature() - Feature get request
|
||||
* @hsdev: Hub device instance.
|
||||
* @report_id: Report id to look for
|
||||
* @field_index: Field index inside a report
|
||||
* @value: Place holder for return value
|
||||
* @buffer_size: size of the buffer
|
||||
* @buffer: buffer to copy output
|
||||
*
|
||||
* Used to get a field in feature report. For example this can get polling
|
||||
* interval, sensitivity, activate/deactivate state.
|
||||
* interval, sensitivity, activate/deactivate state. On success it returns
|
||||
* number of bytes copied to buffer. On failure, it returns value < 0.
|
||||
*/
|
||||
int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
|
||||
u32 field_index, s32 *value);
|
||||
u32 field_index, int buffer_size, void *buffer);
|
||||
|
||||
/* hid-sensor-attributes */
|
||||
|
||||
|
|
|
@ -21,6 +21,8 @@
|
|||
|
||||
#define HID_MAX_PHY_DEVICES 0xFF
|
||||
|
||||
#define HID_USAGE_SENSOR_COLLECTION 0x200001
|
||||
|
||||
/* Accel 3D (200073) */
|
||||
#define HID_USAGE_SENSOR_ACCEL_3D 0x200073
|
||||
#define HID_USAGE_SENSOR_DATA_ACCELERATION 0x200452
|
||||
|
|
Loading…
Reference in a new issue