patch-2.1.44 linux/include/asm-mips/keyboard.h

• Lines: 241
• Date: Thu Jun 26 12:33:39 1997
• Orig file: v2.1.43/linux/include/asm-mips/keyboard.h
• Orig date: Mon Jun 16 16:36:00 1997

diff -u --recursive --new-file v2.1.43/linux/include/asm-mips/keyboard.h linux/include/asm-mips/keyboard.h
@@ -1,20 +1,22 @@
 /*
- *  linux/include/asm-mips/keyboard.h
+ * CPU specific parts of the keyboard driver
  *
- *  Created 3 Nov 1996 by Geert Uytterhoeven
- */
-
-/*
- *  This file contains the mips architecture specific keyboard definitions
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * This file is a mess.  Put on your peril sensitive glasses.
+ *
+ * $Id: keyboard.h,v 1.4 1997/06/16 00:31:46 ralf Exp $
  */
-
-#ifndef __ASMMIPS_KEYBOARD_H
-#define __ASMMIPS_KEYBOARD_H
+#ifndef __ASM_MIPS_KEYBOARD_H
+#define __ASM_MIPS_KEYBOARD_H
 
 #ifdef __KERNEL__
 
-#define KEYBOARD_IRQ			1
-#define DISABLE_KBD_DURING_INTERRUPTS	0
+#include <linux/config.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
 
 extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
 extern int pckbd_getkeycode(unsigned int scancode);
@@ -33,8 +35,203 @@
 #define kbd_leds		pckbd_leds
 #define kbd_init_hw		pckbd_init_hw
 
-#define INIT_KBD
+/*
+ * The default IO slowdown is doing 'inb()'s from 0x61, which should be
+ * safe. But as that is the keyboard controller chip address, we do our
+ * slowdowns here by doing short jumps: the keyboard controller should
+ * be able to keep up
+ */
+#define REALLY_SLOW_IO
+#define SLOW_IO_BY_JUMPING
+#include <asm/io.h>
+
+/*
+ * keyboard controller registers
+ */
+#define KBD_STATUS_REG      (unsigned int) 0x64
+#define KBD_CNTL_REG        (unsigned int) 0x64
+#define KBD_DATA_REG        (unsigned int) 0x60
+
+#ifdef CONFIG_SGI
+#include <asm/segment.h>
+#include <asm/sgihpc.h>
+#endif
+#include <asm/bootinfo.h>
+#include <asm/jazz.h>
+
+#ifdef CONFIG_SGI
+#define KEYBOARD_IRQ 20
+#else
+/* Not true for Jazz machines, we cheat a bit for 'em. */
+#define KEYBOARD_IRQ 1
+#endif
+
+#ifdef CONFIG_SGI
+#define DISABLE_KBD_DURING_INTERRUPTS 1
+#else
+#define DISABLE_KBD_DURING_INTERRUPTS 0
+#endif
+
+#ifndef CONFIG_SGI
+#define KBD_REPORT_ERR
+#endif
+#define KBD_REPORT_UNKN
+/* #define KBD_IS_FOCUS_9000 */
+
+int (*kbd_inb_p)(unsigned short port);
+int (*kbd_inb)(unsigned short port);
+void (*kbd_outb_p)(unsigned char data, unsigned short port);
+void (*kbd_outb)(unsigned char data, unsigned short port);
+
+#ifdef CONFIG_MIPS_JAZZ
+#define INIT_KBD	/* full initialization for the keyboard controller. */
+
+static volatile keyboard_hardware *jazz_kh;
+
+static int
+jazz_kbd_inb_p(unsigned short port)
+{
+	int result;
+
+	if(port == KBD_DATA_REG)
+		result = jazz_kh->data;
+	else /* Must be KBD_STATUS_REG */
+		result = jazz_kh->command;
+	inb(0x80);
+
+	return result;
+}
+
+static int
+jazz_kbd_inb(unsigned short port)
+{
+	int result;
+
+	if(port == KBD_DATA_REG)
+		result = jazz_kh->data;
+	else /* Must be KBD_STATUS_REG */
+		result = jazz_kh->command;
+
+	return result;
+}
+
+static void
+jazz_kbd_outb_p(unsigned char data, unsigned short port)
+{
+	if(port == KBD_DATA_REG)
+		jazz_kh->data = data;
+	else if(port == KBD_CNTL_REG)
+		jazz_kh->command = data;
+	inb(0x80);
+}
+
+static void
+jazz_kbd_outb(unsigned char data, unsigned short port)
+{
+	if(port == KBD_DATA_REG)
+		jazz_kh->data = data;
+	else if(port == KBD_CNTL_REG)
+		jazz_kh->command = data;
+}
+#endif /* CONFIG_MIPS_JAZZ */
+
+#ifdef CONFIG_SGI
+#define INIT_KBD	/* full initialization for the keyboard controller. */
+
+static volatile struct hpc_keyb *sgi_kh;
+
+static int
+sgi_kbd_inb(unsigned short port)
+{
+	int result;
+
+	if(port == KBD_DATA_REG)
+		result = sgi_kh->data;
+	else /* Must be KBD_STATUS_REG */
+		result = sgi_kh->command;
+
+	return result;
+}
+
+static void
+sgi_kbd_outb(unsigned char data, unsigned short port)
+{
+	if(port == KBD_DATA_REG)
+		sgi_kh->data = data;
+	else if(port == KBD_CNTL_REG)
+		sgi_kh->command = data;
+}
+#endif /* CONFIG_SGI */
 
-#endif /* __KERNEL__ */
+/*
+ * Most other MIPS machines access the keyboard controller via
+ * ordinary I/O ports.
+ */
+static int
+port_kbd_inb_p(unsigned short port)
+{
+	return inb_p(port);
+}
+
+static int
+port_kbd_inb(unsigned short port)
+{
+	return inb(port);
+}
+
+static void
+port_kbd_outb_p(unsigned char data, unsigned short port)
+{
+	return outb_p(data, port);
+}
+
+static void
+port_kbd_outb(unsigned char data, unsigned short port)
+{
+	return outb(data, port);
+}
+
+extern __inline__ void keyboard_setup(void)
+{
+#ifdef CONFIG_MIPS_JAZZ
+        if (mips_machgroup == MACH_GROUP_JAZZ) {
+		jazz_kh = (void *) JAZZ_KEYBOARD_ADDRESS;
+		kbd_inb_p = jazz_kbd_inb_p;
+		kbd_inb = jazz_kbd_inb;
+		kbd_outb_p = jazz_kbd_outb_p;
+		kbd_outb = jazz_kbd_outb;
+		/*
+		 * Enable keyboard interrupts.
+		 */
+		*((volatile u16 *)JAZZ_IO_IRQ_ENABLE) |= JAZZ_IE_KEYBOARD;
+		set_cp0_status(IE_IRQ1, IE_IRQ1);
+	} else
+#endif
+	if (mips_machgroup == MACH_GROUP_ARC ||	/* this is for Deskstation */
+	    (mips_machgroup == MACH_GROUP_SNI_RM
+	     && mips_machtype == MACH_SNI_RM200_PCI)) {
+		/*
+		 * These machines address their keyboard via the normal
+		 * port address range.
+		 *
+		 * Also enable Scan Mode 2.
+		 */
+		kbd_inb_p = port_kbd_inb_p;
+		kbd_inb = port_kbd_inb;
+		kbd_outb_p = port_kbd_outb_p;
+		kbd_outb = port_kbd_outb;
+		request_region(0x60,16,"keyboard");
+	}
+#ifdef CONFIG_SGI
+	if (mips_machgroup == MACH_GROUP_SGI) {
+		sgi_kh = (struct hpc_keyb *) (KSEG1 + 0x1fbd9800 + 64);
+		kbd_inb_p = sgi_kbd_inb;
+		kbd_inb = sgi_kbd_inb;
+		kbd_outb_p = sgi_kbd_outb;
+		kbd_outb = sgi_kbd_outb;
+	}
+#endif
+}
 
-#endif /* __ASMMIPS_KEYBOARD_H */
+#endif /* __KERNEL */
+#endif /* __ASM_MIPS_KEYBOARD_H */