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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
150 lines
3.4 KiB
C
150 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* SEGA Dreamcast mouse driver
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* Based on drivers/usb/usbmouse.c
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*
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* Copyright (c) Yaegashi Takeshi, 2001
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* Copyright (c) Adrian McMenamin, 2008 - 2009
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/timer.h>
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#include <linux/maple.h>
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MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
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MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
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MODULE_LICENSE("GPL");
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struct dc_mouse {
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struct input_dev *dev;
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struct maple_device *mdev;
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};
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static void dc_mouse_callback(struct mapleq *mq)
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{
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int buttons, relx, rely, relz;
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struct maple_device *mapledev = mq->dev;
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struct dc_mouse *mse = maple_get_drvdata(mapledev);
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struct input_dev *dev = mse->dev;
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unsigned char *res = mq->recvbuf->buf;
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buttons = ~res[8];
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relx = *(unsigned short *)(res + 12) - 512;
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rely = *(unsigned short *)(res + 14) - 512;
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relz = *(unsigned short *)(res + 16) - 512;
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input_report_key(dev, BTN_LEFT, buttons & 4);
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input_report_key(dev, BTN_MIDDLE, buttons & 9);
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input_report_key(dev, BTN_RIGHT, buttons & 2);
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input_report_rel(dev, REL_X, relx);
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input_report_rel(dev, REL_Y, rely);
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input_report_rel(dev, REL_WHEEL, relz);
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input_sync(dev);
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}
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static int dc_mouse_open(struct input_dev *dev)
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{
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struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
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maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
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MAPLE_FUNC_MOUSE);
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return 0;
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}
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static void dc_mouse_close(struct input_dev *dev)
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{
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struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
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maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
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MAPLE_FUNC_MOUSE);
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}
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/* allow the mouse to be used */
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static int probe_maple_mouse(struct device *dev)
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{
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struct maple_device *mdev = to_maple_dev(dev);
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struct maple_driver *mdrv = to_maple_driver(dev->driver);
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int error;
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struct input_dev *input_dev;
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struct dc_mouse *mse;
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mse = kzalloc_obj(*mse);
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if (!mse) {
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error = -ENOMEM;
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goto fail;
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}
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input_dev = input_allocate_device();
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if (!input_dev) {
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error = -ENOMEM;
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goto fail_nomem;
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}
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mse->dev = input_dev;
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mse->mdev = mdev;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
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BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
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input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
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BIT_MASK(REL_WHEEL);
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input_dev->open = dc_mouse_open;
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input_dev->close = dc_mouse_close;
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input_dev->name = mdev->product_name;
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input_dev->id.bustype = BUS_HOST;
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error = input_register_device(input_dev);
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if (error)
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goto fail_register;
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mdev->driver = mdrv;
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maple_set_drvdata(mdev, mse);
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return error;
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fail_register:
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input_free_device(input_dev);
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fail_nomem:
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kfree(mse);
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fail:
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return error;
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}
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static int remove_maple_mouse(struct device *dev)
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{
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struct maple_device *mdev = to_maple_dev(dev);
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struct dc_mouse *mse = maple_get_drvdata(mdev);
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mdev->callback = NULL;
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input_unregister_device(mse->dev);
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maple_set_drvdata(mdev, NULL);
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kfree(mse);
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return 0;
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}
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static struct maple_driver dc_mouse_driver = {
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.function = MAPLE_FUNC_MOUSE,
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.drv = {
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.name = "Dreamcast_mouse",
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.probe = probe_maple_mouse,
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.remove = remove_maple_mouse,
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},
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};
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static int __init dc_mouse_init(void)
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{
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return maple_driver_register(&dc_mouse_driver);
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}
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static void __exit dc_mouse_exit(void)
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{
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maple_driver_unregister(&dc_mouse_driver);
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}
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module_init(dc_mouse_init);
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module_exit(dc_mouse_exit);
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