Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 167 insertions, 0 deletions

diff --git a/include/linux/uinput.h b/include/linux/uinput.h
new file mode 100644
index 0000000..4c2c823
--- /dev/null
+++ b/include/linux/uinput.h
@@ -0,0 +1,167 @@
+#ifndef __UINPUT_H_
+#define __UINPUT_H_
+/*
+ *  User level driver support for input subsystem
+ *
+ * Heavily based on evdev.c by Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
+ * 
+ * Changes/Revisions:
+ *	0.2	16/10/2004 (Micah Dowty <micah@navi.cx>)
+ *		- added force feedback support
+ *             - added UI_SET_PHYS
+ *	0.1	20/06/2002
+ *		- first public version
+ */
+#ifdef __KERNEL__
+#define UINPUT_MINOR		223
+#define UINPUT_NAME		"uinput"
+#define UINPUT_BUFFER_SIZE	16
+#define UINPUT_NUM_REQUESTS	16
+
+/* state flags => bit index for {set|clear|test}_bit ops */
+#define UIST_CREATED		0
+
+struct uinput_request {
+	int			id;
+	int			code;	/* UI_FF_UPLOAD, UI_FF_ERASE */
+
+	int			retval;
+	wait_queue_head_t	waitq;
+	int			completed;
+
+	union {
+		int		effect_id;
+		struct ff_effect* effect;
+	} u;
+};
+
+struct uinput_device {
+	struct input_dev	*dev;
+	unsigned long		state;
+	wait_queue_head_t	waitq;
+	unsigned char		ready,
+				head,
+				tail;
+	struct input_event	buff[UINPUT_BUFFER_SIZE];
+
+	struct uinput_request	*requests[UINPUT_NUM_REQUESTS];
+	wait_queue_head_t	requests_waitq;
+	struct semaphore	requests_sem;
+};
+#endif	/* __KERNEL__ */
+
+struct uinput_ff_upload {
+	int			request_id;
+	int			retval;
+	struct ff_effect	effect;
+};
+
+struct uinput_ff_erase {
+	int			request_id;
+	int			retval;
+	int			effect_id;
+};
+
+/* ioctl */
+#define UINPUT_IOCTL_BASE	'U'
+#define UI_DEV_CREATE		_IO(UINPUT_IOCTL_BASE, 1)
+#define UI_DEV_DESTROY		_IO(UINPUT_IOCTL_BASE, 2)
+
+#define UI_SET_EVBIT		_IOW(UINPUT_IOCTL_BASE, 100, int)
+#define UI_SET_KEYBIT		_IOW(UINPUT_IOCTL_BASE, 101, int)
+#define UI_SET_RELBIT		_IOW(UINPUT_IOCTL_BASE, 102, int)
+#define UI_SET_ABSBIT		_IOW(UINPUT_IOCTL_BASE, 103, int)
+#define UI_SET_MSCBIT		_IOW(UINPUT_IOCTL_BASE, 104, int)
+#define UI_SET_LEDBIT		_IOW(UINPUT_IOCTL_BASE, 105, int)
+#define UI_SET_SNDBIT		_IOW(UINPUT_IOCTL_BASE, 106, int)
+#define UI_SET_FFBIT		_IOW(UINPUT_IOCTL_BASE, 107, int)
+#define UI_SET_PHYS		_IOW(UINPUT_IOCTL_BASE, 108, char*)
+
+#define UI_BEGIN_FF_UPLOAD	_IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload)
+#define UI_END_FF_UPLOAD	_IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload)
+#define UI_BEGIN_FF_ERASE	_IOWR(UINPUT_IOCTL_BASE, 202, struct uinput_ff_erase)
+#define UI_END_FF_ERASE		_IOW(UINPUT_IOCTL_BASE, 203, struct uinput_ff_erase)
+
+/* To write a force-feedback-capable driver, the upload_effect
+ * and erase_effect callbacks in input_dev must be implemented.
+ * The uinput driver will generate a fake input event when one of
+ * these callbacks are invoked. The userspace code then uses
+ * ioctls to retrieve additional parameters and send the return code.
+ * The callback blocks until this return code is sent.
+ *
+ * The described callback mechanism is only used if EV_FF is set.
+ * Otherwise, default implementations of upload_effect and erase_effect
+ * are used.
+ *
+ * To implement upload_effect():
+ *   1. Wait for an event with type==EV_UINPUT and code==UI_FF_UPLOAD.
+ *      A request ID will be given in 'value'.
+ *   2. Allocate a uinput_ff_upload struct, fill in request_id with
+ *      the 'value' from the EV_UINPUT event.
+ *   3. Issue a UI_BEGIN_FF_UPLOAD ioctl, giving it the
+ *      uinput_ff_upload struct. It will be filled in with the
+ *      ff_effect passed to upload_effect().
+ *   4. Perform the effect upload, and place the modified ff_effect
+ *      and a return code back into the uinput_ff_upload struct.
+ *   5. Issue a UI_END_FF_UPLOAD ioctl, also giving it the
+ *      uinput_ff_upload_effect struct. This will complete execution
+ *      of our upload_effect() handler.
+ *
+ * To implement erase_effect():
+ *   1. Wait for an event with type==EV_UINPUT and code==UI_FF_ERASE.
+ *      A request ID will be given in 'value'.
+ *   2. Allocate a uinput_ff_erase struct, fill in request_id with
+ *      the 'value' from the EV_UINPUT event.
+ *   3. Issue a UI_BEGIN_FF_ERASE ioctl, giving it the
+ *      uinput_ff_erase struct. It will be filled in with the
+ *      effect ID passed to erase_effect().
+ *   4. Perform the effect erasure, and place a return code back
+ *      into the uinput_ff_erase struct.
+ *      and a return code back into the uinput_ff_erase struct.
+ *   5. Issue a UI_END_FF_ERASE ioctl, also giving it the
+ *      uinput_ff_erase_effect struct. This will complete execution
+ *      of our erase_effect() handler.
+ */
+
+/* This is the new event type, used only by uinput.
+ * 'code' is UI_FF_UPLOAD or UI_FF_ERASE, and 'value'
+ * is the unique request ID. This number was picked
+ * arbitrarily, above EV_MAX (since the input system
+ * never sees it) but in the range of a 16-bit int.
+ */
+#define EV_UINPUT		0x0101
+#define UI_FF_UPLOAD		1
+#define UI_FF_ERASE		2
+
+#ifndef NBITS
+#define NBITS(x) ((((x)-1)/(sizeof(long)*8))+1)
+#endif	/* NBITS */
+
+#define UINPUT_MAX_NAME_SIZE	80
+struct uinput_user_dev {
+	char name[UINPUT_MAX_NAME_SIZE];
+	struct input_id id;
+        int ff_effects_max;
+        int absmax[ABS_MAX + 1];
+        int absmin[ABS_MAX + 1];
+        int absfuzz[ABS_MAX + 1];
+        int absflat[ABS_MAX + 1];
+};
+#endif	/* __UINPUT_H_ */
+