150 lines
3.4 KiB
C
150 lines
3.4 KiB
C
/*
|
|
* SEGA Dreamcast mouse driver
|
|
* Based on drivers/usb/usbmouse.c
|
|
*
|
|
* Copyright (c) Yaegashi Takeshi, 2001
|
|
* Copyright (c) Adrian McMenamin, 2008 - 2009
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/input.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/maple.h>
|
|
|
|
MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
|
|
MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
struct dc_mouse {
|
|
struct input_dev *dev;
|
|
struct maple_device *mdev;
|
|
};
|
|
|
|
static void dc_mouse_callback(struct mapleq *mq)
|
|
{
|
|
int buttons, relx, rely, relz;
|
|
struct maple_device *mapledev = mq->dev;
|
|
struct dc_mouse *mse = maple_get_drvdata(mapledev);
|
|
struct input_dev *dev = mse->dev;
|
|
unsigned char *res = mq->recvbuf->buf;
|
|
|
|
buttons = ~res[8];
|
|
relx = *(unsigned short *)(res + 12) - 512;
|
|
rely = *(unsigned short *)(res + 14) - 512;
|
|
relz = *(unsigned short *)(res + 16) - 512;
|
|
|
|
input_report_key(dev, BTN_LEFT, buttons & 4);
|
|
input_report_key(dev, BTN_MIDDLE, buttons & 9);
|
|
input_report_key(dev, BTN_RIGHT, buttons & 2);
|
|
input_report_rel(dev, REL_X, relx);
|
|
input_report_rel(dev, REL_Y, rely);
|
|
input_report_rel(dev, REL_WHEEL, relz);
|
|
input_sync(dev);
|
|
}
|
|
|
|
static int dc_mouse_open(struct input_dev *dev)
|
|
{
|
|
struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
|
|
|
|
maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
|
|
MAPLE_FUNC_MOUSE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void dc_mouse_close(struct input_dev *dev)
|
|
{
|
|
struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
|
|
|
|
maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
|
|
MAPLE_FUNC_MOUSE);
|
|
}
|
|
|
|
/* allow the mouse to be used */
|
|
static int probe_maple_mouse(struct device *dev)
|
|
{
|
|
struct maple_device *mdev = to_maple_dev(dev);
|
|
struct maple_driver *mdrv = to_maple_driver(dev->driver);
|
|
int error;
|
|
struct input_dev *input_dev;
|
|
struct dc_mouse *mse;
|
|
|
|
mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
|
|
if (!mse) {
|
|
error = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
input_dev = input_allocate_device();
|
|
if (!input_dev) {
|
|
error = -ENOMEM;
|
|
goto fail_nomem;
|
|
}
|
|
|
|
mse->dev = input_dev;
|
|
mse->mdev = mdev;
|
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
|
|
input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
|
|
BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
|
|
input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
|
|
BIT_MASK(REL_WHEEL);
|
|
input_dev->open = dc_mouse_open;
|
|
input_dev->close = dc_mouse_close;
|
|
input_dev->name = mdev->product_name;
|
|
input_dev->id.bustype = BUS_HOST;
|
|
error = input_register_device(input_dev);
|
|
if (error)
|
|
goto fail_register;
|
|
|
|
mdev->driver = mdrv;
|
|
maple_set_drvdata(mdev, mse);
|
|
|
|
return error;
|
|
|
|
fail_register:
|
|
input_free_device(input_dev);
|
|
fail_nomem:
|
|
kfree(mse);
|
|
fail:
|
|
return error;
|
|
}
|
|
|
|
static int remove_maple_mouse(struct device *dev)
|
|
{
|
|
struct maple_device *mdev = to_maple_dev(dev);
|
|
struct dc_mouse *mse = maple_get_drvdata(mdev);
|
|
|
|
mdev->callback = NULL;
|
|
input_unregister_device(mse->dev);
|
|
maple_set_drvdata(mdev, NULL);
|
|
kfree(mse);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct maple_driver dc_mouse_driver = {
|
|
.function = MAPLE_FUNC_MOUSE,
|
|
.drv = {
|
|
.name = "Dreamcast_mouse",
|
|
.probe = probe_maple_mouse,
|
|
.remove = remove_maple_mouse,
|
|
},
|
|
};
|
|
|
|
static int __init dc_mouse_init(void)
|
|
{
|
|
return maple_driver_register(&dc_mouse_driver);
|
|
}
|
|
|
|
static void __exit dc_mouse_exit(void)
|
|
{
|
|
maple_driver_unregister(&dc_mouse_driver);
|
|
}
|
|
|
|
module_init(dc_mouse_init);
|
|
module_exit(dc_mouse_exit);
|