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path: root/drivers/input/mouse/inport.c
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Diffstat (limited to 'drivers/input/mouse/inport.c')
-rw-r--r--drivers/input/mouse/inport.c196
1 files changed, 196 insertions, 0 deletions
diff --git a/drivers/input/mouse/inport.c b/drivers/input/mouse/inport.c
new file mode 100644
index 00000000000..ca4e9688662
--- /dev/null
+++ b/drivers/input/mouse/inport.c
@@ -0,0 +1,196 @@
+/*
+ * $Id: inport.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
+ *
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Teemu Rantanen Derrick Cole
+ * Peter Cervasio Christoph Niemann
+ * Philip Blundell Russell King
+ * Bob Harris
+ */
+
+/*
+ * Inport (ATI XL and Microsoft) busmouse 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/config.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
+MODULE_LICENSE("GPL");
+
+#define INPORT_BASE 0x23c
+#define INPORT_EXTENT 4
+
+#define INPORT_CONTROL_PORT INPORT_BASE + 0
+#define INPORT_DATA_PORT INPORT_BASE + 1
+#define INPORT_SIGNATURE_PORT INPORT_BASE + 2
+
+#define INPORT_REG_BTNS 0x00
+#define INPORT_REG_X 0x01
+#define INPORT_REG_Y 0x02
+#define INPORT_REG_MODE 0x07
+#define INPORT_RESET 0x80
+
+#ifdef CONFIG_INPUT_ATIXL
+#define INPORT_NAME "ATI XL Mouse"
+#define INPORT_VENDOR 0x0002
+#define INPORT_SPEED_30HZ 0x01
+#define INPORT_SPEED_50HZ 0x02
+#define INPORT_SPEED_100HZ 0x03
+#define INPORT_SPEED_200HZ 0x04
+#define INPORT_MODE_BASE INPORT_SPEED_100HZ
+#define INPORT_MODE_IRQ 0x08
+#else
+#define INPORT_NAME "Microsoft InPort Mouse"
+#define INPORT_VENDOR 0x0001
+#define INPORT_MODE_BASE 0x10
+#define INPORT_MODE_IRQ 0x01
+#endif
+#define INPORT_MODE_HOLD 0x20
+
+#define INPORT_IRQ 5
+
+static int inport_irq = INPORT_IRQ;
+module_param_named(irq, inport_irq, uint, 0);
+MODULE_PARM_DESC(irq, "IRQ number (5=default)");
+
+__obsolete_setup("inport_irq=");
+
+static int inport_used;
+
+static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+
+static int inport_open(struct input_dev *dev)
+{
+ if (!inport_used++) {
+ if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
+ return -EBUSY;
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
+ }
+
+ return 0;
+}
+
+static void inport_close(struct input_dev *dev)
+{
+ if (!--inport_used) {
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
+ free_irq(inport_irq, NULL);
+ }
+}
+
+static struct input_dev inport_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 = inport_open,
+ .close = inport_close,
+ .name = INPORT_NAME,
+ .phys = "isa023c/input0",
+ .id = {
+ .bustype = BUS_ISA,
+ .vendor = INPORT_VENDOR,
+ .product = 0x0001,
+ .version = 0x0100,
+ },
+};
+
+static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ unsigned char buttons;
+
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ input_regs(&inport_dev, regs);
+
+ outb(INPORT_REG_X, INPORT_CONTROL_PORT);
+ input_report_rel(&inport_dev, REL_X, inb(INPORT_DATA_PORT));
+
+ outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
+ input_report_rel(&inport_dev, REL_Y, inb(INPORT_DATA_PORT));
+
+ outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
+ buttons = inb(INPORT_DATA_PORT);
+
+ input_report_key(&inport_dev, BTN_MIDDLE, buttons & 1);
+ input_report_key(&inport_dev, BTN_LEFT, buttons & 2);
+ input_report_key(&inport_dev, BTN_RIGHT, buttons & 4);
+
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ input_sync(&inport_dev);
+ return IRQ_HANDLED;
+}
+
+static int __init inport_init(void)
+{
+ unsigned char a,b,c;
+
+ if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
+ printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
+ return -EBUSY;
+ }
+
+ a = inb(INPORT_SIGNATURE_PORT);
+ b = inb(INPORT_SIGNATURE_PORT);
+ c = inb(INPORT_SIGNATURE_PORT);
+ if (( a == b ) || ( a != c )) {
+ release_region(INPORT_BASE, INPORT_EXTENT);
+ printk(KERN_ERR "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
+ return -ENODEV;
+ }
+
+ outb(INPORT_RESET, INPORT_CONTROL_PORT);
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ input_register_device(&inport_dev);
+
+ printk(KERN_INFO "input: " INPORT_NAME " at %#x irq %d\n", INPORT_BASE, inport_irq);
+
+ return 0;
+}
+
+static void __exit inport_exit(void)
+{
+ input_unregister_device(&inport_dev);
+ release_region(INPORT_BASE, INPORT_EXTENT);
+}
+
+module_init(inport_init);
+module_exit(inport_exit);