Release 4.11 drivers/input/touchscreen/ipaq-micro-ts.c
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* h3600 atmel micro companion support, touchscreen subdevice
* Author : Alessandro Gardich <gremlin@gremlin.it>
* Author : Dmitry Artamonow <mad_soft@inbox.ru>
* Author : Linus Walleij <linus.walleij@linaro.org>
*
*/
#include <asm/byteorder.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/mfd/ipaq-micro.h>
struct touchscreen_data {
struct input_dev *input;
struct ipaq_micro *micro;
};
static void micro_ts_receive(void *data, int len, unsigned char *msg)
{
struct touchscreen_data *ts = data;
if (len == 4) {
input_report_abs(ts->input, ABS_X,
be16_to_cpup((__be16 *) &msg[2]));
input_report_abs(ts->input, ABS_Y,
be16_to_cpup((__be16 *) &msg[0]));
input_report_key(ts->input, BTN_TOUCH, 1);
input_sync(ts->input);
} else if (len == 0) {
input_report_abs(ts->input, ABS_X, 0);
input_report_abs(ts->input, ABS_Y, 0);
input_report_key(ts->input, BTN_TOUCH, 0);
input_sync(ts->input);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Artamonow | 144 | 100.00% | 1 | 100.00% |
| Total | 144 | 100.00% | 1 | 100.00% |
static void micro_ts_toggle_receive(struct touchscreen_data *ts, bool enable)
{
struct ipaq_micro *micro = ts->micro;
spin_lock_irq(µ->lock);
if (enable) {
micro->ts = micro_ts_receive;
micro->ts_data = ts;
} else {
micro->ts = NULL;
micro->ts_data = NULL;
}
spin_unlock_irq(&ts->micro->lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Torokhov | 74 | 100.00% | 1 | 100.00% |
| Total | 74 | 100.00% | 1 | 100.00% |
static int micro_ts_open(struct input_dev *input)
{
struct touchscreen_data *ts = input_get_drvdata(input);
micro_ts_toggle_receive(ts, true);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Torokhov | 31 | 100.00% | 1 | 100.00% |
| Total | 31 | 100.00% | 1 | 100.00% |
static void micro_ts_close(struct input_dev *input)
{
struct touchscreen_data *ts = input_get_drvdata(input);
micro_ts_toggle_receive(ts, false);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Torokhov | 28 | 100.00% | 1 | 100.00% |
| Total | 28 | 100.00% | 1 | 100.00% |
static int micro_ts_probe(struct platform_device *pdev)
{
struct ipaq_micro *micro = dev_get_drvdata(pdev->dev.parent);
struct touchscreen_data *ts;
int error;
ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
ts->micro = micro;
ts->input = devm_input_allocate_device(&pdev->dev);
if (!ts->input) {
dev_err(&pdev->dev, "failed to allocate input device\n");
return -ENOMEM;
}
ts->input->name = "ipaq micro ts";
ts->input->open = micro_ts_open;
ts->input->close = micro_ts_close;
input_set_drvdata(ts->input, ts);
input_set_capability(ts->input, EV_KEY, BTN_TOUCH);
input_set_capability(ts->input, EV_ABS, ABS_X);
input_set_capability(ts->input, EV_ABS, ABS_Y);
input_set_abs_params(ts->input, ABS_X, 0, 1023, 0, 0);
input_set_abs_params(ts->input, ABS_Y, 0, 1023, 0, 0);
error = input_register_device(ts->input);
if (error) {
dev_err(&pdev->dev, "error registering touch input\n");
return error;
}
platform_set_drvdata(pdev, ts);
dev_info(&pdev->dev, "iPAQ micro touchscreen\n");
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Artamonow | 194 | 77.91% | 1 | 50.00% |
| Dmitry Torokhov | 55 | 22.09% | 1 | 50.00% |
| Total | 249 | 100.00% | 2 | 100.00% |
static int __maybe_unused micro_ts_suspend(struct device *dev)
{
struct touchscreen_data *ts = dev_get_drvdata(dev);
micro_ts_toggle_receive(ts, false);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Artamonow | 28 | 87.50% | 1 | 33.33% |
| Dmitry Torokhov | 3 | 9.38% | 1 | 33.33% |
| Jingoo Han | 1 | 3.12% | 1 | 33.33% |
| Total | 32 | 100.00% | 3 | 100.00% |
static int __maybe_unused micro_ts_resume(struct device *dev)
{
struct touchscreen_data *ts = dev_get_drvdata(dev);
struct input_dev *input = ts->input;
mutex_lock(&input->mutex);
if (input->users)
micro_ts_toggle_receive(ts, true);
mutex_unlock(&input->mutex);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Artamonow | 37 | 58.73% | 1 | 33.33% |
| Dmitry Torokhov | 25 | 39.68% | 1 | 33.33% |
| Jingoo Han | 1 | 1.59% | 1 | 33.33% |
| Total | 63 | 100.00% | 3 | 100.00% |
static const struct dev_pm_ops micro_ts_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(micro_ts_suspend, micro_ts_resume)
};
static struct platform_driver micro_ts_device_driver = {
.driver = {
.name = "ipaq-micro-ts",
.pm = µ_ts_dev_pm_ops,
},
.probe = micro_ts_probe,
};
module_platform_driver(micro_ts_device_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("driver for iPAQ Atmel micro touchscreen");
MODULE_ALIAS("platform:ipaq-micro-ts");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dmitry Artamonow | 515 | 70.26% | 1 | 33.33% |
| Dmitry Torokhov | 216 | 29.47% | 1 | 33.33% |
| Jingoo Han | 2 | 0.27% | 1 | 33.33% |
| Total | 733 | 100.00% | 3 | 100.00% |
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