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.
150 lines
3.5 KiB
150 lines
3.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* 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 <[email protected]>"); |
|
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);
|
|
|