Linux-2.6.12-rc2v2.6.12-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, 183 insertions, 0 deletions

diff --git a/drivers/input/mouse/logibm.c b/drivers/input/mouse/logibm.c
new file mode 100644
index 0000000..77eb83e
--- /dev/null
+++ b/drivers/input/mouse/logibm.c
@@ -0,0 +1,183 @@
+/*
+ * $Id: logibm.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	James Banks		Matthew Dillon
+ *	David Giller		Nathan Laredo
+ *	Linus Torvalds		Johan Myreen
+ *	Cliff Matthews		Philip Blundell
+ *	Russell King
+ */
+
+/*
+ * Logitech Bus Mouse Driver for Linux
+ */
+
+/*
+ * 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
+ * 
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Logitech busmouse driver");
+MODULE_LICENSE("GPL");
+
+#define	LOGIBM_BASE		0x23c
+#define	LOGIBM_EXTENT		4
+
+#define	LOGIBM_DATA_PORT	LOGIBM_BASE + 0
+#define	LOGIBM_SIGNATURE_PORT	LOGIBM_BASE + 1
+#define	LOGIBM_CONTROL_PORT	LOGIBM_BASE + 2
+#define	LOGIBM_CONFIG_PORT	LOGIBM_BASE + 3
+
+#define	LOGIBM_ENABLE_IRQ	0x00
+#define	LOGIBM_DISABLE_IRQ	0x10
+#define	LOGIBM_READ_X_LOW	0x80
+#define	LOGIBM_READ_X_HIGH	0xa0
+#define	LOGIBM_READ_Y_LOW	0xc0
+#define	LOGIBM_READ_Y_HIGH	0xe0
+
+#define LOGIBM_DEFAULT_MODE	0x90
+#define LOGIBM_CONFIG_BYTE	0x91
+#define LOGIBM_SIGNATURE_BYTE	0xa5
+
+#define LOGIBM_IRQ		5
+
+static int logibm_irq = LOGIBM_IRQ;
+module_param_named(irq, logibm_irq, uint, 0);
+MODULE_PARM_DESC(irq, "IRQ number (5=default)");
+
+__obsolete_setup("logibm_irq=");
+
+static int logibm_used = 0;
+
+static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+
+static int logibm_open(struct input_dev *dev)
+{
+	if (logibm_used++)
+		return 0;
+	if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
+		logibm_used--;
+		printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
+		return -EBUSY;
+	}
+	outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
+	return 0;
+}
+
+static void logibm_close(struct input_dev *dev)
+{
+	if (--logibm_used)
+		return;
+	outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
+	free_irq(logibm_irq, NULL);
+}
+
+static struct input_dev logibm_dev = {
+	.evbit	= { BIT(EV_KEY) | BIT(EV_REL) },
+	.keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT) },
+	.relbit	= { BIT(REL_X) | BIT(REL_Y) },
+	.open	= logibm_open,
+	.close	= logibm_close,
+	.name	= "Logitech bus mouse",
+	.phys	= "isa023c/input0",
+	.id	= {
+		.bustype = BUS_ISA,
+		.vendor  = 0x0003,
+		.product = 0x0001,
+		.version = 0x0100,
+	},
+};
+
+static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	char dx, dy;
+	unsigned char buttons;
+
+	outb(LOGIBM_READ_X_LOW, LOGIBM_CONTROL_PORT);
+	dx = (inb(LOGIBM_DATA_PORT) & 0xf);
+	outb(LOGIBM_READ_X_HIGH, LOGIBM_CONTROL_PORT);
+	dx |= (inb(LOGIBM_DATA_PORT) & 0xf) << 4;
+	outb(LOGIBM_READ_Y_LOW, LOGIBM_CONTROL_PORT);
+	dy = (inb(LOGIBM_DATA_PORT) & 0xf);
+	outb(LOGIBM_READ_Y_HIGH, LOGIBM_CONTROL_PORT);
+	buttons = inb(LOGIBM_DATA_PORT);
+	dy |= (buttons & 0xf) << 4;
+	buttons = ~buttons >> 5;
+
+	input_regs(&logibm_dev, regs);
+	input_report_rel(&logibm_dev, REL_X, dx);
+	input_report_rel(&logibm_dev, REL_Y, dy);
+	input_report_key(&logibm_dev, BTN_RIGHT,  buttons & 1);
+	input_report_key(&logibm_dev, BTN_MIDDLE, buttons & 2);
+	input_report_key(&logibm_dev, BTN_LEFT,   buttons & 4);
+	input_sync(&logibm_dev);
+
+	outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
+	return IRQ_HANDLED;
+}
+
+static int __init logibm_init(void)
+{
+	if (!request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
+		printk(KERN_ERR "logibm.c: Can't allocate ports at %#x\n", LOGIBM_BASE);
+		return -EBUSY;
+	}
+
+	outb(LOGIBM_CONFIG_BYTE, LOGIBM_CONFIG_PORT);
+	outb(LOGIBM_SIGNATURE_BYTE, LOGIBM_SIGNATURE_PORT);
+	udelay(100);
+
+	if (inb(LOGIBM_SIGNATURE_PORT) != LOGIBM_SIGNATURE_BYTE) {
+		release_region(LOGIBM_BASE, LOGIBM_EXTENT);
+		printk(KERN_ERR "logibm.c: Didn't find Logitech busmouse at %#x\n", LOGIBM_BASE);
+		return -ENODEV;
+	}
+
+	outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
+	outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
+
+	input_register_device(&logibm_dev);
+	
+	printk(KERN_INFO "input: Logitech bus mouse at %#x irq %d\n", LOGIBM_BASE, logibm_irq);
+
+	return 0;
+}
+
+static void __exit logibm_exit(void)
+{
+	input_unregister_device(&logibm_dev);
+	release_region(LOGIBM_BASE, LOGIBM_EXTENT);
+}
+
+module_init(logibm_init);
+module_exit(logibm_exit);