Add Q40 keyboard controller.

drivers/input/serio/q40kbd.c

+/*
+ * $Id: q40kbd.c,v 1.12 2002/02/02 22:26:44 vojtech Exp $
+ *
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	Richard Zidlicky <Richard.Zidlicky@stud.informatik.uni-erlangen.de>	
+ */
+
+/*
+ * Q40 PS/2 keyboard controller driver for Linux/m68k
+ */
+
+/*
+ * 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/init.h>
+#include <linux/serio.h>
+
+#include <asm/keyboard.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/q40_master.h>
+#include <asm/irq.h>
+#include <asm/q40ints.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Q40 PS/2 keyboard controller driver");
+MODULE_LICENSE("GPL");
+
+static struct serio q40kbd_port =
+{
+	type:   SERIO_8042,
+	write:  NULL,
+	name:	"Q40 PS/2 kbd port",
+	phys:	"isa0060/serio0",
+};
+
+static void q40kbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	unsigned long flags;
+
+	if (IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
+		if (q40kbd_port.dev)
+                         q40kbd_port.dev->interrupt(&q40kbd_port, master_inb(KEYCODE_REG), 0);
+
+	master_outb(-1, KEYBOARD_UNLOCK_REG);
+}
+
+void __init q40kbd_init(void)
+{
+	int maxread = 100;
+
+	/* Get the keyboard controller registers (incomplete decode) */
+	request_region(0x60, 16, "q40kbd");
+
+	/* allocate the IRQ */
+	request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL);
+
+	/* flush any pending input. */
+	while (maxread-- && (IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
+		master_inb(KEYCODE_REG);
+	
+	/* off we go */
+	master_outb(-1,KEYBOARD_UNLOCK_REG);
+	master_outb(1,KEY_IRQ_ENABLE_REG);
+
+	register_serio_port(&q40kbd_port);
+	printk(KERN_INFO "serio: Q40 PS/2 kbd port irq %d\n", Q40_IRQ_KEYBOARD);
+}
+
+void __exit q40kbd_exit(void)
+{
+	unregister_serio_port(&q40kbd_port);
+	free_irq(Q40_IRQ_KEYBOARD, NULL);
+	release_region(0x60, 16);	
+}
+
+module_init(q40kbd_init);
+module_exit(q40kbd_exit);