forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
586 lines
16 KiB
586 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* HID Sensors Driver |
|
* Copyright (c) 2012, Intel Corporation. |
|
*/ |
|
#include <linux/device.h> |
|
#include <linux/platform_device.h> |
|
#include <linux/module.h> |
|
#include <linux/mod_devicetable.h> |
|
#include <linux/hid-sensor-hub.h> |
|
#include <linux/iio/iio.h> |
|
#include <linux/iio/buffer.h> |
|
#include "../common/hid-sensors/hid-sensor-trigger.h" |
|
|
|
enum magn_3d_channel { |
|
CHANNEL_SCAN_INDEX_X, |
|
CHANNEL_SCAN_INDEX_Y, |
|
CHANNEL_SCAN_INDEX_Z, |
|
CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP, |
|
CHANNEL_SCAN_INDEX_NORTH_TRUE_TILT_COMP, |
|
CHANNEL_SCAN_INDEX_NORTH_MAGN, |
|
CHANNEL_SCAN_INDEX_NORTH_TRUE, |
|
CHANNEL_SCAN_INDEX_TIMESTAMP, |
|
MAGN_3D_CHANNEL_MAX, |
|
}; |
|
|
|
struct common_attributes { |
|
int scale_pre_decml; |
|
int scale_post_decml; |
|
int scale_precision; |
|
int value_offset; |
|
}; |
|
|
|
struct magn_3d_state { |
|
struct hid_sensor_hub_callbacks callbacks; |
|
struct hid_sensor_common magn_flux_attributes; |
|
struct hid_sensor_common rot_attributes; |
|
struct hid_sensor_hub_attribute_info magn[MAGN_3D_CHANNEL_MAX]; |
|
|
|
/* dynamically sized array to hold sensor values */ |
|
u32 *iio_vals; |
|
/* array of pointers to sensor value */ |
|
u32 *magn_val_addr[MAGN_3D_CHANNEL_MAX]; |
|
|
|
struct common_attributes magn_flux_attr; |
|
struct common_attributes rot_attr; |
|
s64 timestamp; |
|
}; |
|
|
|
static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = { |
|
HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS, |
|
HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS, |
|
HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS, |
|
HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, |
|
HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH, |
|
HID_USAGE_SENSOR_ORIENT_MAGN_NORTH, |
|
HID_USAGE_SENSOR_ORIENT_TRUE_NORTH, |
|
HID_USAGE_SENSOR_TIME_TIMESTAMP, |
|
}; |
|
|
|
static const u32 magn_3d_sensitivity_addresses[] = { |
|
HID_USAGE_SENSOR_DATA_ORIENTATION, |
|
HID_USAGE_SENSOR_ORIENT_MAGN_FLUX, |
|
}; |
|
|
|
/* Channel definitions */ |
|
static const struct iio_chan_spec magn_3d_channels[] = { |
|
{ |
|
.type = IIO_MAGN, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_X, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, { |
|
.type = IIO_MAGN, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_Y, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, { |
|
.type = IIO_MAGN, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_Z, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, { |
|
.type = IIO_ROT, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_NORTH_MAGN_TILT_COMP, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, { |
|
.type = IIO_ROT, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_NORTH_TRUE_TILT_COMP, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, { |
|
.type = IIO_ROT, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_NORTH_MAGN, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, { |
|
.type = IIO_ROT, |
|
.modified = 1, |
|
.channel2 = IIO_MOD_NORTH_TRUE, |
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | |
|
BIT(IIO_CHAN_INFO_SCALE) | |
|
BIT(IIO_CHAN_INFO_SAMP_FREQ) | |
|
BIT(IIO_CHAN_INFO_HYSTERESIS), |
|
}, |
|
IIO_CHAN_SOFT_TIMESTAMP(7) |
|
}; |
|
|
|
/* Adjust channel real bits based on report descriptor */ |
|
static void magn_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels, |
|
int channel, int size) |
|
{ |
|
channels[channel].scan_type.sign = 's'; |
|
/* Real storage bits will change based on the report desc. */ |
|
channels[channel].scan_type.realbits = size * 8; |
|
/* Maximum size of a sample to capture is u32 */ |
|
channels[channel].scan_type.storagebits = sizeof(u32) * 8; |
|
} |
|
|
|
/* Channel read_raw handler */ |
|
static int magn_3d_read_raw(struct iio_dev *indio_dev, |
|
struct iio_chan_spec const *chan, |
|
int *val, int *val2, |
|
long mask) |
|
{ |
|
struct magn_3d_state *magn_state = iio_priv(indio_dev); |
|
int report_id = -1; |
|
u32 address; |
|
int ret_type; |
|
s32 min; |
|
|
|
*val = 0; |
|
*val2 = 0; |
|
switch (mask) { |
|
case IIO_CHAN_INFO_RAW: |
|
hid_sensor_power_state(&magn_state->magn_flux_attributes, true); |
|
report_id = magn_state->magn[chan->address].report_id; |
|
min = magn_state->magn[chan->address].logical_minimum; |
|
address = magn_3d_addresses[chan->address]; |
|
if (report_id >= 0) |
|
*val = sensor_hub_input_attr_get_raw_value( |
|
magn_state->magn_flux_attributes.hsdev, |
|
HID_USAGE_SENSOR_COMPASS_3D, address, |
|
report_id, |
|
SENSOR_HUB_SYNC, |
|
min < 0); |
|
else { |
|
*val = 0; |
|
hid_sensor_power_state( |
|
&magn_state->magn_flux_attributes, |
|
false); |
|
return -EINVAL; |
|
} |
|
hid_sensor_power_state(&magn_state->magn_flux_attributes, |
|
false); |
|
ret_type = IIO_VAL_INT; |
|
break; |
|
case IIO_CHAN_INFO_SCALE: |
|
switch (chan->type) { |
|
case IIO_MAGN: |
|
*val = magn_state->magn_flux_attr.scale_pre_decml; |
|
*val2 = magn_state->magn_flux_attr.scale_post_decml; |
|
ret_type = magn_state->magn_flux_attr.scale_precision; |
|
break; |
|
case IIO_ROT: |
|
*val = magn_state->rot_attr.scale_pre_decml; |
|
*val2 = magn_state->rot_attr.scale_post_decml; |
|
ret_type = magn_state->rot_attr.scale_precision; |
|
break; |
|
default: |
|
ret_type = -EINVAL; |
|
} |
|
break; |
|
case IIO_CHAN_INFO_OFFSET: |
|
switch (chan->type) { |
|
case IIO_MAGN: |
|
*val = magn_state->magn_flux_attr.value_offset; |
|
ret_type = IIO_VAL_INT; |
|
break; |
|
case IIO_ROT: |
|
*val = magn_state->rot_attr.value_offset; |
|
ret_type = IIO_VAL_INT; |
|
break; |
|
default: |
|
ret_type = -EINVAL; |
|
} |
|
break; |
|
case IIO_CHAN_INFO_SAMP_FREQ: |
|
ret_type = hid_sensor_read_samp_freq_value( |
|
&magn_state->magn_flux_attributes, val, val2); |
|
break; |
|
case IIO_CHAN_INFO_HYSTERESIS: |
|
switch (chan->type) { |
|
case IIO_MAGN: |
|
ret_type = hid_sensor_read_raw_hyst_value( |
|
&magn_state->magn_flux_attributes, val, val2); |
|
break; |
|
case IIO_ROT: |
|
ret_type = hid_sensor_read_raw_hyst_value( |
|
&magn_state->rot_attributes, val, val2); |
|
break; |
|
default: |
|
ret_type = -EINVAL; |
|
} |
|
break; |
|
default: |
|
ret_type = -EINVAL; |
|
break; |
|
} |
|
|
|
return ret_type; |
|
} |
|
|
|
/* Channel write_raw handler */ |
|
static int magn_3d_write_raw(struct iio_dev *indio_dev, |
|
struct iio_chan_spec const *chan, |
|
int val, |
|
int val2, |
|
long mask) |
|
{ |
|
struct magn_3d_state *magn_state = iio_priv(indio_dev); |
|
int ret = 0; |
|
|
|
switch (mask) { |
|
case IIO_CHAN_INFO_SAMP_FREQ: |
|
ret = hid_sensor_write_samp_freq_value( |
|
&magn_state->magn_flux_attributes, val, val2); |
|
break; |
|
case IIO_CHAN_INFO_HYSTERESIS: |
|
switch (chan->type) { |
|
case IIO_MAGN: |
|
ret = hid_sensor_write_raw_hyst_value( |
|
&magn_state->magn_flux_attributes, val, val2); |
|
break; |
|
case IIO_ROT: |
|
ret = hid_sensor_write_raw_hyst_value( |
|
&magn_state->rot_attributes, val, val2); |
|
break; |
|
default: |
|
ret = -EINVAL; |
|
} |
|
break; |
|
default: |
|
ret = -EINVAL; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static const struct iio_info magn_3d_info = { |
|
.read_raw = &magn_3d_read_raw, |
|
.write_raw = &magn_3d_write_raw, |
|
}; |
|
|
|
/* Callback handler to send event after all samples are received and captured */ |
|
static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev, |
|
unsigned usage_id, |
|
void *priv) |
|
{ |
|
struct iio_dev *indio_dev = platform_get_drvdata(priv); |
|
struct magn_3d_state *magn_state = iio_priv(indio_dev); |
|
|
|
dev_dbg(&indio_dev->dev, "magn_3d_proc_event\n"); |
|
if (atomic_read(&magn_state->magn_flux_attributes.data_ready)) { |
|
if (!magn_state->timestamp) |
|
magn_state->timestamp = iio_get_time_ns(indio_dev); |
|
|
|
iio_push_to_buffers_with_timestamp(indio_dev, |
|
magn_state->iio_vals, |
|
magn_state->timestamp); |
|
magn_state->timestamp = 0; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* Capture samples in local storage */ |
|
static int magn_3d_capture_sample(struct hid_sensor_hub_device *hsdev, |
|
unsigned usage_id, |
|
size_t raw_len, char *raw_data, |
|
void *priv) |
|
{ |
|
struct iio_dev *indio_dev = platform_get_drvdata(priv); |
|
struct magn_3d_state *magn_state = iio_priv(indio_dev); |
|
int offset; |
|
int ret = 0; |
|
u32 *iio_val = NULL; |
|
|
|
switch (usage_id) { |
|
case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS: |
|
case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS: |
|
case HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS: |
|
offset = (usage_id - HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS) |
|
+ CHANNEL_SCAN_INDEX_X; |
|
break; |
|
case HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH: |
|
case HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH: |
|
case HID_USAGE_SENSOR_ORIENT_MAGN_NORTH: |
|
case HID_USAGE_SENSOR_ORIENT_TRUE_NORTH: |
|
offset = (usage_id - HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH) |
|
+ CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP; |
|
break; |
|
case HID_USAGE_SENSOR_TIME_TIMESTAMP: |
|
magn_state->timestamp = |
|
hid_sensor_convert_timestamp(&magn_state->magn_flux_attributes, |
|
*(s64 *)raw_data); |
|
return ret; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
iio_val = magn_state->magn_val_addr[offset]; |
|
|
|
if (iio_val != NULL) |
|
*iio_val = *((u32 *)raw_data); |
|
else |
|
ret = -EINVAL; |
|
|
|
return ret; |
|
} |
|
|
|
/* Parse report which is specific to an usage id*/ |
|
static int magn_3d_parse_report(struct platform_device *pdev, |
|
struct hid_sensor_hub_device *hsdev, |
|
struct iio_chan_spec **channels, |
|
int *chan_count, |
|
unsigned usage_id, |
|
struct magn_3d_state *st) |
|
{ |
|
int i; |
|
int attr_count = 0; |
|
struct iio_chan_spec *_channels; |
|
|
|
/* Scan for each usage attribute supported */ |
|
for (i = 0; i < MAGN_3D_CHANNEL_MAX; i++) { |
|
int status; |
|
u32 address = magn_3d_addresses[i]; |
|
|
|
/* Check if usage attribute exists in the sensor hub device */ |
|
status = sensor_hub_input_get_attribute_info(hsdev, |
|
HID_INPUT_REPORT, |
|
usage_id, |
|
address, |
|
&(st->magn[i])); |
|
if (!status) |
|
attr_count++; |
|
} |
|
|
|
if (attr_count <= 0) { |
|
dev_err(&pdev->dev, |
|
"failed to find any supported usage attributes in report\n"); |
|
return -EINVAL; |
|
} |
|
|
|
dev_dbg(&pdev->dev, "magn_3d Found %d usage attributes\n", |
|
attr_count); |
|
dev_dbg(&pdev->dev, "magn_3d X: %x:%x Y: %x:%x Z: %x:%x\n", |
|
st->magn[0].index, |
|
st->magn[0].report_id, |
|
st->magn[1].index, st->magn[1].report_id, |
|
st->magn[2].index, st->magn[2].report_id); |
|
|
|
/* Setup IIO channel array */ |
|
_channels = devm_kcalloc(&pdev->dev, attr_count, |
|
sizeof(struct iio_chan_spec), |
|
GFP_KERNEL); |
|
if (!_channels) { |
|
dev_err(&pdev->dev, |
|
"failed to allocate space for iio channels\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
/* attr_count include timestamp channel, and the iio_vals should be aligned to 8byte */ |
|
st->iio_vals = devm_kcalloc(&pdev->dev, |
|
((attr_count + 1) % 2 + (attr_count + 1) / 2) * 2, |
|
sizeof(u32), GFP_KERNEL); |
|
if (!st->iio_vals) { |
|
dev_err(&pdev->dev, |
|
"failed to allocate space for iio values array\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
for (i = 0, *chan_count = 0; |
|
i < MAGN_3D_CHANNEL_MAX && *chan_count < attr_count; |
|
i++){ |
|
if (st->magn[i].index >= 0) { |
|
/* Setup IIO channel struct */ |
|
(_channels[*chan_count]) = magn_3d_channels[i]; |
|
(_channels[*chan_count]).scan_index = *chan_count; |
|
(_channels[*chan_count]).address = i; |
|
|
|
if (i != CHANNEL_SCAN_INDEX_TIMESTAMP) { |
|
/* Set magn_val_addr to iio value address */ |
|
st->magn_val_addr[i] = &st->iio_vals[*chan_count]; |
|
magn_3d_adjust_channel_bit_mask(_channels, |
|
*chan_count, |
|
st->magn[i].size); |
|
} |
|
(*chan_count)++; |
|
} |
|
} |
|
|
|
if (*chan_count <= 0) { |
|
dev_err(&pdev->dev, |
|
"failed to find any magnetic channels setup\n"); |
|
return -EINVAL; |
|
} |
|
|
|
*channels = _channels; |
|
|
|
dev_dbg(&pdev->dev, "magn_3d Setup %d IIO channels\n", |
|
*chan_count); |
|
|
|
st->magn_flux_attr.scale_precision = hid_sensor_format_scale( |
|
HID_USAGE_SENSOR_COMPASS_3D, |
|
&st->magn[CHANNEL_SCAN_INDEX_X], |
|
&st->magn_flux_attr.scale_pre_decml, |
|
&st->magn_flux_attr.scale_post_decml); |
|
st->rot_attr.scale_precision |
|
= hid_sensor_format_scale( |
|
HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, |
|
&st->magn[CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP], |
|
&st->rot_attr.scale_pre_decml, |
|
&st->rot_attr.scale_post_decml); |
|
|
|
if (st->rot_attributes.sensitivity.index < 0) { |
|
sensor_hub_input_get_attribute_info(hsdev, |
|
HID_FEATURE_REPORT, usage_id, |
|
HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS | |
|
HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, |
|
&st->rot_attributes.sensitivity); |
|
dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n", |
|
st->rot_attributes.sensitivity.index, |
|
st->rot_attributes.sensitivity.report_id); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* Function to initialize the processing for usage id */ |
|
static int hid_magn_3d_probe(struct platform_device *pdev) |
|
{ |
|
int ret = 0; |
|
static char *name = "magn_3d"; |
|
struct iio_dev *indio_dev; |
|
struct magn_3d_state *magn_state; |
|
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; |
|
struct iio_chan_spec *channels; |
|
int chan_count = 0; |
|
|
|
indio_dev = devm_iio_device_alloc(&pdev->dev, |
|
sizeof(struct magn_3d_state)); |
|
if (indio_dev == NULL) |
|
return -ENOMEM; |
|
|
|
platform_set_drvdata(pdev, indio_dev); |
|
|
|
magn_state = iio_priv(indio_dev); |
|
magn_state->magn_flux_attributes.hsdev = hsdev; |
|
magn_state->magn_flux_attributes.pdev = pdev; |
|
|
|
ret = hid_sensor_parse_common_attributes(hsdev, |
|
HID_USAGE_SENSOR_COMPASS_3D, |
|
&magn_state->magn_flux_attributes, |
|
magn_3d_sensitivity_addresses, |
|
ARRAY_SIZE(magn_3d_sensitivity_addresses)); |
|
if (ret) { |
|
dev_err(&pdev->dev, "failed to setup common attributes\n"); |
|
return ret; |
|
} |
|
magn_state->rot_attributes = magn_state->magn_flux_attributes; |
|
/* sensitivity of rot_attribute is not the same as magn_flux_attributes */ |
|
magn_state->rot_attributes.sensitivity.index = -1; |
|
|
|
ret = magn_3d_parse_report(pdev, hsdev, |
|
&channels, &chan_count, |
|
HID_USAGE_SENSOR_COMPASS_3D, magn_state); |
|
if (ret) { |
|
dev_err(&pdev->dev, "failed to parse report\n"); |
|
return ret; |
|
} |
|
|
|
indio_dev->channels = channels; |
|
indio_dev->num_channels = chan_count; |
|
indio_dev->info = &magn_3d_info; |
|
indio_dev->name = name; |
|
indio_dev->modes = INDIO_DIRECT_MODE; |
|
|
|
atomic_set(&magn_state->magn_flux_attributes.data_ready, 0); |
|
|
|
ret = hid_sensor_setup_trigger(indio_dev, name, |
|
&magn_state->magn_flux_attributes); |
|
if (ret < 0) { |
|
dev_err(&pdev->dev, "trigger setup failed\n"); |
|
return ret; |
|
} |
|
|
|
ret = iio_device_register(indio_dev); |
|
if (ret) { |
|
dev_err(&pdev->dev, "device register failed\n"); |
|
goto error_remove_trigger; |
|
} |
|
|
|
magn_state->callbacks.send_event = magn_3d_proc_event; |
|
magn_state->callbacks.capture_sample = magn_3d_capture_sample; |
|
magn_state->callbacks.pdev = pdev; |
|
ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D, |
|
&magn_state->callbacks); |
|
if (ret < 0) { |
|
dev_err(&pdev->dev, "callback reg failed\n"); |
|
goto error_iio_unreg; |
|
} |
|
|
|
return ret; |
|
|
|
error_iio_unreg: |
|
iio_device_unregister(indio_dev); |
|
error_remove_trigger: |
|
hid_sensor_remove_trigger(indio_dev, &magn_state->magn_flux_attributes); |
|
return ret; |
|
} |
|
|
|
/* Function to deinitialize the processing for usage id */ |
|
static int hid_magn_3d_remove(struct platform_device *pdev) |
|
{ |
|
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; |
|
struct iio_dev *indio_dev = platform_get_drvdata(pdev); |
|
struct magn_3d_state *magn_state = iio_priv(indio_dev); |
|
|
|
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D); |
|
iio_device_unregister(indio_dev); |
|
hid_sensor_remove_trigger(indio_dev, &magn_state->magn_flux_attributes); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct platform_device_id hid_magn_3d_ids[] = { |
|
{ |
|
/* Format: HID-SENSOR-usage_id_in_hex_lowercase */ |
|
.name = "HID-SENSOR-200083", |
|
}, |
|
{ /* sentinel */ } |
|
}; |
|
MODULE_DEVICE_TABLE(platform, hid_magn_3d_ids); |
|
|
|
static struct platform_driver hid_magn_3d_platform_driver = { |
|
.id_table = hid_magn_3d_ids, |
|
.driver = { |
|
.name = KBUILD_MODNAME, |
|
.pm = &hid_sensor_pm_ops, |
|
}, |
|
.probe = hid_magn_3d_probe, |
|
.remove = hid_magn_3d_remove, |
|
}; |
|
module_platform_driver(hid_magn_3d_platform_driver); |
|
|
|
MODULE_DESCRIPTION("HID Sensor Magnetometer 3D"); |
|
MODULE_AUTHOR("Srinivas Pandruvada <[email protected]>"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_IMPORT_NS(IIO_HID);
|
|
|