Input: add support for the Maple mouse on the SEGA Dreamcast (03dd5e1b) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/input/mouse/Kconfig

+11 −0

Original line number	Diff line number	Diff line
		@@ -292,4 +292,15 @@ config MOUSE_PXA930_TRKBALL
		help
		Say Y here to support PXA930 Trackball mouse.

		config MOUSE_MAPLE
		tristate "Maple mouse (for the Dreamcast)"
		depends on MAPLE
		help
		This driver supports the Maple mouse on the SEGA Dreamcast.

		Most Dreamcast users, who have a mouse, will say Y here.

		To compile this driver as a module choose M here: the module will be
		called maplemouse.

		endif

drivers/input/mouse/Makefile

+5 −4

Original line number	Diff line number	Diff line
		@@ -6,18 +6,19 @@

		obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o
		obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o
		obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
		obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
		obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
		obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
		obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
		obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
		obj-$(CONFIG_MOUSE_INPORT) += inport.o
		obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
		obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o
		obj-$(CONFIG_MOUSE_PC110PAD) += pc110pad.o
		obj-$(CONFIG_MOUSE_PS2) += psmouse.o
		obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o
		obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
		obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o
		obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
		obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o
		obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o

		psmouse-objs := psmouse-base.o synaptics.o

drivers/input/mouse/maplemouse.c

0 → 100644

+147 −0

Original line number	Diff line number	Diff line
		/*
		* SEGA Dreamcast mouse driver
		* Based on drivers/usb/usbmouse.c
		*
		* Copyright Yaegashi Takeshi, 2001
		* Adrian McMenamin, 2008
		*/

		#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;

		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 = dev->dev.platform_data;

		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 = dev->dev.platform_data;

		maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
		MAPLE_FUNC_MOUSE);
		}


		static int __devinit probe_maple_mouse(struct device *dev)
		{
		struct maple_device *mdev = to_maple_dev(dev);
		struct maple_driver *mdrv = to_maple_driver(dev->driver);
		struct input_dev *input_dev;
		struct dc_mouse *mse;
		int error;

		mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
		input_dev = input_allocate_device();

		if (!mse \|\| !input_dev) {
		error = -ENOMEM;
		goto fail;
		}

		mse->dev = input_dev;
		mse->mdev = mdev;

		input_set_drvdata(input_dev, mse);
		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->name = mdev->product_name;
		input_dev->id.bustype = BUS_HOST;
		input_dev->open = dc_mouse_open;
		input_dev->close = dc_mouse_close;

		mdev->driver = mdrv;
		maple_set_drvdata(mdev, mse);

		error = input_register_device(input_dev);
		if (error)
		goto fail;

		return 0;

		fail:
		input_free_device(input_dev);
		maple_set_drvdata(mdev, NULL);
		kfree(mse);
		mdev->driver = NULL;
		return error;
		}

		static int __devexit 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 = __devexit_p(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);