mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 13:55:32 +00:00
![Jiri Slaby](/assets/img/avatar_default.png)
get rid of input BIT* duplicate defines use newly global defined macros for input layer. Also remove includes of input.h from non-input sources only for BIT macro definiton. Define the macro temporarily in local manner, all those local definitons will be removed further in this patchset (to not break bisecting). BIT macro will be globally defined (1<<x) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: <dtor@mail.ru> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: <lenb@kernel.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: <perex@suse.cz> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: <vernux@us.ibm.com> Cc: <malattia@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
182 lines
3.8 KiB
C
182 lines
3.8 KiB
C
/*
|
|
* Penmount serial touchscreen driver
|
|
*
|
|
* Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
|
|
*
|
|
* Based on ELO driver (drivers/input/touchscreen/elo.c)
|
|
* Copyright (c) 2004 Vojtech Pavlik
|
|
*/
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/input.h>
|
|
#include <linux/serio.h>
|
|
#include <linux/init.h>
|
|
|
|
#define DRIVER_DESC "Penmount serial touchscreen driver"
|
|
|
|
MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* Definitions & global arrays.
|
|
*/
|
|
|
|
#define PM_MAX_LENGTH 5
|
|
|
|
/*
|
|
* Per-touchscreen data.
|
|
*/
|
|
|
|
struct pm {
|
|
struct input_dev *dev;
|
|
struct serio *serio;
|
|
int idx;
|
|
unsigned char data[PM_MAX_LENGTH];
|
|
char phys[32];
|
|
};
|
|
|
|
static irqreturn_t pm_interrupt(struct serio *serio,
|
|
unsigned char data, unsigned int flags)
|
|
{
|
|
struct pm *pm = serio_get_drvdata(serio);
|
|
struct input_dev *dev = pm->dev;
|
|
|
|
pm->data[pm->idx] = data;
|
|
|
|
if (pm->data[0] & 0x80) {
|
|
if (PM_MAX_LENGTH == ++pm->idx) {
|
|
input_report_abs(dev, ABS_X, pm->data[2] * 128 + pm->data[1]);
|
|
input_report_abs(dev, ABS_Y, pm->data[4] * 128 + pm->data[3]);
|
|
input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
|
|
input_sync(dev);
|
|
pm->idx = 0;
|
|
}
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* pm_disconnect() is the opposite of pm_connect()
|
|
*/
|
|
|
|
static void pm_disconnect(struct serio *serio)
|
|
{
|
|
struct pm *pm = serio_get_drvdata(serio);
|
|
|
|
input_get_device(pm->dev);
|
|
input_unregister_device(pm->dev);
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
input_put_device(pm->dev);
|
|
kfree(pm);
|
|
}
|
|
|
|
/*
|
|
* pm_connect() is the routine that is called when someone adds a
|
|
* new serio device that supports Gunze protocol and registers it as
|
|
* an input device.
|
|
*/
|
|
|
|
static int pm_connect(struct serio *serio, struct serio_driver *drv)
|
|
{
|
|
struct pm *pm;
|
|
struct input_dev *input_dev;
|
|
int err;
|
|
|
|
pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
|
|
input_dev = input_allocate_device();
|
|
if (!pm || !input_dev) {
|
|
err = -ENOMEM;
|
|
goto fail1;
|
|
}
|
|
|
|
pm->serio = serio;
|
|
pm->dev = input_dev;
|
|
snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
|
|
|
|
input_dev->name = "Penmount Serial TouchScreen";
|
|
input_dev->phys = pm->phys;
|
|
input_dev->id.bustype = BUS_RS232;
|
|
input_dev->id.vendor = SERIO_PENMOUNT;
|
|
input_dev->id.product = 0;
|
|
input_dev->id.version = 0x0100;
|
|
input_dev->dev.parent = &serio->dev;
|
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
|
|
input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
|
|
input_set_abs_params(pm->dev, ABS_X, 0, 0x3ff, 0, 0);
|
|
input_set_abs_params(pm->dev, ABS_Y, 0, 0x3ff, 0, 0);
|
|
|
|
serio_set_drvdata(serio, pm);
|
|
|
|
err = serio_open(serio, drv);
|
|
if (err)
|
|
goto fail2;
|
|
|
|
err = input_register_device(pm->dev);
|
|
if (err)
|
|
goto fail3;
|
|
|
|
return 0;
|
|
|
|
fail3: serio_close(serio);
|
|
fail2: serio_set_drvdata(serio, NULL);
|
|
fail1: input_free_device(input_dev);
|
|
kfree(pm);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* The serio driver structure.
|
|
*/
|
|
|
|
static struct serio_device_id pm_serio_ids[] = {
|
|
{
|
|
.type = SERIO_RS232,
|
|
.proto = SERIO_PENMOUNT,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(serio, pm_serio_ids);
|
|
|
|
static struct serio_driver pm_drv = {
|
|
.driver = {
|
|
.name = "penmountlpc",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = pm_serio_ids,
|
|
.interrupt = pm_interrupt,
|
|
.connect = pm_connect,
|
|
.disconnect = pm_disconnect,
|
|
};
|
|
|
|
/*
|
|
* The functions for inserting/removing us as a module.
|
|
*/
|
|
|
|
static int __init pm_init(void)
|
|
{
|
|
return serio_register_driver(&pm_drv);
|
|
}
|
|
|
|
static void __exit pm_exit(void)
|
|
{
|
|
serio_unregister_driver(&pm_drv);
|
|
}
|
|
|
|
module_init(pm_init);
|
|
module_exit(pm_exit);
|