mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
384
drivers/iio/light/hid-sensor-prox.c
Normal file
384
drivers/iio/light/hid-sensor-prox.c
Normal file
|
|
@ -0,0 +1,384 @@
|
|||
/*
|
||||
* HID Sensors Driver
|
||||
* Copyright (c) 2014, 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with
|
||||
* this program.
|
||||
*
|
||||
*/
|
||||
#include <linux/device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/hid-sensor-hub.h>
|
||||
#include <linux/iio/iio.h>
|
||||
#include <linux/iio/sysfs.h>
|
||||
#include <linux/iio/buffer.h>
|
||||
#include <linux/iio/trigger_consumer.h>
|
||||
#include <linux/iio/triggered_buffer.h>
|
||||
#include "../common/hid-sensors/hid-sensor-trigger.h"
|
||||
|
||||
#define CHANNEL_SCAN_INDEX_PRESENCE 0
|
||||
|
||||
struct prox_state {
|
||||
struct hid_sensor_hub_callbacks callbacks;
|
||||
struct hid_sensor_common common_attributes;
|
||||
struct hid_sensor_hub_attribute_info prox_attr;
|
||||
u32 human_presence;
|
||||
};
|
||||
|
||||
/* Channel definitions */
|
||||
static const struct iio_chan_spec prox_channels[] = {
|
||||
{
|
||||
.type = IIO_PROXIMITY,
|
||||
.modified = 1,
|
||||
.channel2 = IIO_NO_MOD,
|
||||
.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),
|
||||
.scan_index = CHANNEL_SCAN_INDEX_PRESENCE,
|
||||
}
|
||||
};
|
||||
|
||||
/* Adjust channel real bits based on report descriptor */
|
||||
static void prox_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 prox_read_raw(struct iio_dev *indio_dev,
|
||||
struct iio_chan_spec const *chan,
|
||||
int *val, int *val2,
|
||||
long mask)
|
||||
{
|
||||
struct prox_state *prox_state = iio_priv(indio_dev);
|
||||
int report_id = -1;
|
||||
u32 address;
|
||||
int ret_type;
|
||||
s32 poll_value;
|
||||
|
||||
*val = 0;
|
||||
*val2 = 0;
|
||||
switch (mask) {
|
||||
case IIO_CHAN_INFO_RAW:
|
||||
switch (chan->scan_index) {
|
||||
case CHANNEL_SCAN_INDEX_PRESENCE:
|
||||
report_id = prox_state->prox_attr.report_id;
|
||||
address =
|
||||
HID_USAGE_SENSOR_HUMAN_PRESENCE;
|
||||
break;
|
||||
default:
|
||||
report_id = -1;
|
||||
break;
|
||||
}
|
||||
if (report_id >= 0) {
|
||||
poll_value = hid_sensor_read_poll_value(
|
||||
&prox_state->common_attributes);
|
||||
if (poll_value < 0)
|
||||
return -EINVAL;
|
||||
|
||||
hid_sensor_power_state(&prox_state->common_attributes,
|
||||
true);
|
||||
|
||||
msleep_interruptible(poll_value * 2);
|
||||
|
||||
*val = sensor_hub_input_attr_get_raw_value(
|
||||
prox_state->common_attributes.hsdev,
|
||||
HID_USAGE_SENSOR_PROX, address,
|
||||
report_id);
|
||||
hid_sensor_power_state(&prox_state->common_attributes,
|
||||
false);
|
||||
} else {
|
||||
*val = 0;
|
||||
return -EINVAL;
|
||||
}
|
||||
ret_type = IIO_VAL_INT;
|
||||
break;
|
||||
case IIO_CHAN_INFO_SCALE:
|
||||
*val = prox_state->prox_attr.units;
|
||||
ret_type = IIO_VAL_INT;
|
||||
break;
|
||||
case IIO_CHAN_INFO_OFFSET:
|
||||
*val = hid_sensor_convert_exponent(
|
||||
prox_state->prox_attr.unit_expo);
|
||||
ret_type = IIO_VAL_INT;
|
||||
break;
|
||||
case IIO_CHAN_INFO_SAMP_FREQ:
|
||||
ret_type = hid_sensor_read_samp_freq_value(
|
||||
&prox_state->common_attributes, val, val2);
|
||||
break;
|
||||
case IIO_CHAN_INFO_HYSTERESIS:
|
||||
ret_type = hid_sensor_read_raw_hyst_value(
|
||||
&prox_state->common_attributes, val, val2);
|
||||
break;
|
||||
default:
|
||||
ret_type = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
return ret_type;
|
||||
}
|
||||
|
||||
/* Channel write_raw handler */
|
||||
static int prox_write_raw(struct iio_dev *indio_dev,
|
||||
struct iio_chan_spec const *chan,
|
||||
int val,
|
||||
int val2,
|
||||
long mask)
|
||||
{
|
||||
struct prox_state *prox_state = iio_priv(indio_dev);
|
||||
int ret = 0;
|
||||
|
||||
switch (mask) {
|
||||
case IIO_CHAN_INFO_SAMP_FREQ:
|
||||
ret = hid_sensor_write_samp_freq_value(
|
||||
&prox_state->common_attributes, val, val2);
|
||||
break;
|
||||
case IIO_CHAN_INFO_HYSTERESIS:
|
||||
ret = hid_sensor_write_raw_hyst_value(
|
||||
&prox_state->common_attributes, val, val2);
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct iio_info prox_info = {
|
||||
.driver_module = THIS_MODULE,
|
||||
.read_raw = &prox_read_raw,
|
||||
.write_raw = &prox_write_raw,
|
||||
};
|
||||
|
||||
/* Function to push data to buffer */
|
||||
static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
|
||||
int len)
|
||||
{
|
||||
dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
|
||||
iio_push_to_buffers(indio_dev, data);
|
||||
}
|
||||
|
||||
/* Callback handler to send event after all samples are received and captured */
|
||||
static int prox_proc_event(struct hid_sensor_hub_device *hsdev,
|
||||
unsigned usage_id,
|
||||
void *priv)
|
||||
{
|
||||
struct iio_dev *indio_dev = platform_get_drvdata(priv);
|
||||
struct prox_state *prox_state = iio_priv(indio_dev);
|
||||
|
||||
dev_dbg(&indio_dev->dev, "prox_proc_event\n");
|
||||
if (atomic_read(&prox_state->common_attributes.data_ready))
|
||||
hid_sensor_push_data(indio_dev,
|
||||
&prox_state->human_presence,
|
||||
sizeof(prox_state->human_presence));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Capture samples in local storage */
|
||||
static int prox_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 prox_state *prox_state = iio_priv(indio_dev);
|
||||
int ret = -EINVAL;
|
||||
|
||||
switch (usage_id) {
|
||||
case HID_USAGE_SENSOR_HUMAN_PRESENCE:
|
||||
prox_state->human_presence = *(u32 *)raw_data;
|
||||
ret = 0;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Parse report which is specific to an usage id*/
|
||||
static int prox_parse_report(struct platform_device *pdev,
|
||||
struct hid_sensor_hub_device *hsdev,
|
||||
struct iio_chan_spec *channels,
|
||||
unsigned usage_id,
|
||||
struct prox_state *st)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT,
|
||||
usage_id,
|
||||
HID_USAGE_SENSOR_HUMAN_PRESENCE,
|
||||
&st->prox_attr);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
prox_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_PRESENCE,
|
||||
st->prox_attr.size);
|
||||
|
||||
dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index,
|
||||
st->prox_attr.report_id);
|
||||
|
||||
/* Set Sensitivity field ids, when there is no individual modifier */
|
||||
if (st->common_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_DATA_PRESENCE,
|
||||
&st->common_attributes.sensitivity);
|
||||
dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
|
||||
st->common_attributes.sensitivity.index,
|
||||
st->common_attributes.sensitivity.report_id);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Function to initialize the processing for usage id */
|
||||
static int hid_prox_probe(struct platform_device *pdev)
|
||||
{
|
||||
int ret = 0;
|
||||
static const char *name = "prox";
|
||||
struct iio_dev *indio_dev;
|
||||
struct prox_state *prox_state;
|
||||
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
|
||||
struct iio_chan_spec *channels;
|
||||
|
||||
indio_dev = devm_iio_device_alloc(&pdev->dev,
|
||||
sizeof(struct prox_state));
|
||||
if (!indio_dev)
|
||||
return -ENOMEM;
|
||||
platform_set_drvdata(pdev, indio_dev);
|
||||
|
||||
prox_state = iio_priv(indio_dev);
|
||||
prox_state->common_attributes.hsdev = hsdev;
|
||||
prox_state->common_attributes.pdev = pdev;
|
||||
|
||||
ret = hid_sensor_parse_common_attributes(hsdev, HID_USAGE_SENSOR_PROX,
|
||||
&prox_state->common_attributes);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "failed to setup common attributes\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
channels = kmemdup(prox_channels, sizeof(prox_channels), GFP_KERNEL);
|
||||
if (!channels) {
|
||||
dev_err(&pdev->dev, "failed to duplicate channels\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
ret = prox_parse_report(pdev, hsdev, channels,
|
||||
HID_USAGE_SENSOR_PROX, prox_state);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "failed to setup attributes\n");
|
||||
goto error_free_dev_mem;
|
||||
}
|
||||
|
||||
indio_dev->channels = channels;
|
||||
indio_dev->num_channels =
|
||||
ARRAY_SIZE(prox_channels);
|
||||
indio_dev->dev.parent = &pdev->dev;
|
||||
indio_dev->info = &prox_info;
|
||||
indio_dev->name = name;
|
||||
indio_dev->modes = INDIO_DIRECT_MODE;
|
||||
|
||||
ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
|
||||
NULL, NULL);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
|
||||
goto error_free_dev_mem;
|
||||
}
|
||||
atomic_set(&prox_state->common_attributes.data_ready, 0);
|
||||
ret = hid_sensor_setup_trigger(indio_dev, name,
|
||||
&prox_state->common_attributes);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "trigger setup failed\n");
|
||||
goto error_unreg_buffer_funcs;
|
||||
}
|
||||
|
||||
ret = iio_device_register(indio_dev);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "device register failed\n");
|
||||
goto error_remove_trigger;
|
||||
}
|
||||
|
||||
prox_state->callbacks.send_event = prox_proc_event;
|
||||
prox_state->callbacks.capture_sample = prox_capture_sample;
|
||||
prox_state->callbacks.pdev = pdev;
|
||||
ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_PROX,
|
||||
&prox_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(&prox_state->common_attributes);
|
||||
error_unreg_buffer_funcs:
|
||||
iio_triggered_buffer_cleanup(indio_dev);
|
||||
error_free_dev_mem:
|
||||
kfree(indio_dev->channels);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Function to deinitialize the processing for usage id */
|
||||
static int hid_prox_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 prox_state *prox_state = iio_priv(indio_dev);
|
||||
|
||||
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_PROX);
|
||||
iio_device_unregister(indio_dev);
|
||||
hid_sensor_remove_trigger(&prox_state->common_attributes);
|
||||
iio_triggered_buffer_cleanup(indio_dev);
|
||||
kfree(indio_dev->channels);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_device_id hid_prox_ids[] = {
|
||||
{
|
||||
/* Format: HID-SENSOR-usage_id_in_hex_lowercase */
|
||||
.name = "HID-SENSOR-200011",
|
||||
},
|
||||
{ /* sentinel */ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, hid_prox_ids);
|
||||
|
||||
static struct platform_driver hid_prox_platform_driver = {
|
||||
.id_table = hid_prox_ids,
|
||||
.driver = {
|
||||
.name = KBUILD_MODNAME,
|
||||
},
|
||||
.probe = hid_prox_probe,
|
||||
.remove = hid_prox_remove,
|
||||
};
|
||||
module_platform_driver(hid_prox_platform_driver);
|
||||
|
||||
MODULE_DESCRIPTION("HID Sensor Proximity");
|
||||
MODULE_AUTHOR("Archana Patni <archana.patni@intel.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Add table
Add a link
Reference in a new issue