Input: add support for the Maple mouse on the SEGA Dreamcast

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 093c8c1..e3855a7 100644 (file)
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -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

diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 8c8a1f2..4721894 100644 (file)
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -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
 

diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
new file mode 100644 (file)
index 0000000..d196abf
--- /dev/null
+++ b/drivers/input/mouse/maplemouse.c
@@ -0,0 +1,147 @@
+/*
+ *     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);