Import of Linux/MIPS 2.1.14

1 files changed, 1318 insertions, 0 deletions

diff --git a/drivers/sbus/char/sunkbd.c b/drivers/sbus/char/sunkbd.c
new file mode 100644
index 000000000..b5d3c42ea
--- /dev/null
+++ b/drivers/sbus/char/sunkbd.c
@@ -0,0 +1,1318 @@
+/* keyboard.c: Sun keyboard driver.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Added vuid event generation and /dev/kbd device for SunOS
+ * compatibility - Miguel (miguel@nuclecu.unam.mx)
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/mm.h>
+#include <linux/ptrace.h>
+#include <linux/signal.h>
+#include <linux/string.h>
+#include <linux/fcntl.h>
+#include <asm/kbio.h>
+#include <asm/vuid_event.h>
+#include <asm/delay.h>
+#include <asm/bitops.h>
+#include <asm/oplib.h>
+
+#include "../../char/kbd_kern.h"
+#include "../../char/diacr.h"
+#include "../../char/vt_kern.h"
+
+#define SIZE(x) (sizeof(x)/sizeof((x)[0]))
+
+/* Define this one if you are making a new frame buffer driver */
+/* it will not block the keyboard */
+/* #define CODING_NEW_DRIVER */
+
+/* KBD device number, temporal */
+#define KBD_MAJOR 11
+
+#define KBD_REPORT_ERR
+#define KBD_REPORT_UNKN
+
+#ifndef KBD_DEFMODE
+#define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))
+#endif
+
+#ifndef KBD_DEFLEDS
+/*
+ * Some laptops take the 789uiojklm,. keys as number pad when NumLock
+ * is on. This seems a good reason to start with NumLock off.
+ */
+#define KBD_DEFLEDS 0
+#endif
+
+#ifndef KBD_DEFLOCK
+#define KBD_DEFLOCK 0
+#endif
+
+extern void poke_blanked_console(void);
+extern void ctrl_alt_del(void);
+extern void reset_vc(unsigned int new_console);
+extern void scrollback(int);
+extern void scrollfront(int);
+
+unsigned char kbd_read_mask = 0x01;	/* modified by psaux.c */
+
+/*
+ * global state includes the following, and various static variables
+ * in this module: prev_scancode, shift_state, diacr, npadch, dead_key_next.
+ * (last_console is now a global variable)
+ */
+
+/* shift state counters.. */
+static unsigned char k_down[NR_SHIFT] = {0, };
+/* keyboard key bitmap */
+#define BITS_PER_LONG (8*sizeof(unsigned long))
+static unsigned long key_down[256/BITS_PER_LONG] = { 0, };
+
+void push_kbd (int scan);
+int kbd_redirected = 0;
+
+static int dead_key_next = 0;
+/* 
+ * In order to retrieve the shift_state (for the mouse server), either
+ * the variable must be global, or a new procedure must be created to 
+ * return the value. I chose the former way.
+ */
+/*static*/ int shift_state = 0;
+static int npadch = -1;			/* -1 or number assembled on pad */
+static unsigned char diacr = 0;
+static char rep = 0;			/* flag telling character repeat */
+struct kbd_struct kbd_table[MAX_NR_CONSOLES];
+static struct tty_struct **ttytab;
+static struct kbd_struct * kbd = kbd_table;
+static struct tty_struct * tty = NULL;
+
+extern void compute_shiftstate(void);
+
+typedef void (*k_hand)(unsigned char value, char up_flag);
+typedef void (k_handfn)(unsigned char value, char up_flag);
+
+static k_handfn
+	do_self, do_fn, do_spec, do_pad, do_dead, do_cons, do_cur, do_shift,
+	do_meta, do_ascii, do_lock, do_lowercase, do_ignore;
+
+static k_hand key_handler[16] = {
+	do_self, do_fn, do_spec, do_pad, do_dead, do_cons, do_cur, do_shift,
+	do_meta, do_ascii, do_lock, do_lowercase,
+	do_ignore, do_ignore, do_ignore, do_ignore
+};
+
+typedef void (*void_fnp)(void);
+typedef void (void_fn)(void);
+
+static void_fn do_null, enter, show_ptregs, send_intr, lastcons, caps_toggle,
+	num, hold, scroll_forw, scroll_back, boot_it, caps_on, compose,
+	SAK, decr_console, incr_console, spawn_console, bare_num;
+
+static void_fnp spec_fn_table[] = {
+	do_null,	enter,		show_ptregs,	show_mem,
+	show_state,	send_intr,	lastcons,	caps_toggle,
+	num,		hold,		scroll_forw,	scroll_back,
+	boot_it,	caps_on,	compose,	SAK,
+	decr_console,	incr_console,	spawn_console,	bare_num
+};
+
+/* maximum values each key_handler can handle */
+const int max_vals[] = {
+	255, SIZE(func_table) - 1, SIZE(spec_fn_table) - 1, NR_PAD - 1,
+	NR_DEAD - 1, 255, 3, NR_SHIFT - 1,
+	255, NR_ASCII - 1, NR_LOCK - 1, 255
+};
+
+const int NR_TYPES = SIZE(max_vals);
+
+static void put_queue(int);
+static unsigned char handle_diacr(unsigned char);
+
+/* pt_regs - set by keyboard_interrupt(), used by show_ptregs() */
+static struct pt_regs * pt_regs;
+
+volatile unsigned char sunkbd_layout;
+volatile unsigned char sunkbd_type;
+#define SUNKBD_TYPE2        0x02
+#define SUNKBD_TYPE3        0x03
+#define SUNKBD_TYPE4        0x04
+
+#define SUNKBD_LOUT_TYP4    0x00
+#define SUNKBD_LOUT_TYP5    0x22
+
+volatile int kbd_reset_pending;
+volatile int kbd_layout_pending;
+
+/* commands */
+#define SKBDCMD_RESET       0x1
+#define SKBDCMD_GLAYOUT     0xf
+#define SKBDCMD_BELLON      0x2
+#define SKBDCMD_BELLOFF     0x3
+#define SKBDCMD_SETLED      0xe
+#define SKBDCMD_NOCLICK     0xb
+#define SKBDCMD_CLICK       0xa
+
+static unsigned char sunkbd_clickp;
+
+/* The led set commands require sending the SETLED byte then
+ * a byte encoding which led's to have set.  Here are the bit
+ * values, a bit set = led-on.
+ */
+#define LED_NLOCK           0x1   /* Num-lock */
+#define LED_CMPOSE          0x2   /* Compose */
+#define LED_SCRLCK          0x4   /* Scroll-lock */
+#define LED_CLOCK           0x8   /* Caps-lock */
+
+/* Special state characters */
+#define SKBD_RESET          0xff
+#define SKBD_ALLUP          0x7f
+#define SKBD_LYOUT          0xfe
+
+/* On the Sparc the keyboard could be one of two things.
+ * It could be a real keyboard speaking over one of the
+ * channels of the second zs8530 chip (other channel is
+ * used by the Sun mouse).  Else we have serial console
+ * going, and thus the other zs8530 chip is who we speak
+ * to.  Either way, we communicate through the zs8530
+ * driver for all our I/O.
+ */
+
+#define SUNKBD_UBIT     0x80      /* If set, key went up */
+#define SUNKBD_KMASK    0x7f      /* Other bits are the keycode */
+
+#define KEY_LSHIFT      0x81
+#define KEY_RSHIFT      0x82
+#define KEY_CONTROL     0x83
+#define KEY_NILL        0x84
+#define KEY_CAPSLOCK    0x85
+#define KEY_ALT         0x86
+#define KEY_L1          0x87
+
+extern void kbd_put_char(unsigned char ch);
+static inline void send_cmd(unsigned char c)
+{
+	kbd_put_char(c);
+}
+
+/* kbd_bh() calls this to send the SKBDCMD_SETLED to the sun keyboard
+ * with the proper bit pattern for the leds to be set.  It basically
+ * converts the kbd->ledflagstate values to corresponding sun kbd led
+ * bit value.
+ */
+static inline unsigned char vcleds_to_sunkbd(unsigned char vcleds)
+{
+	unsigned char retval = 0;
+
+	if(vcleds & (1<<VC_SCROLLOCK))
+		retval |= LED_SCRLCK;
+	if(vcleds & (1<<VC_NUMLOCK))
+		retval |= LED_NLOCK;
+	if(vcleds & (1<<VC_CAPSLOCK))
+		retval |= LED_CLOCK;
+	return retval;
+}
+
+/*
+ * Translation of escaped scancodes to keycodes.
+ * This is now user-settable.
+ * The keycodes 1-88,96-111,119 are fairly standard, and
+ * should probably not be changed - changing might confuse X.
+ * X also interprets scancode 0x5d (KEY_Begin).
+ *
+ * For 1-88 keycode equals scancode.
+ */
+
+#define E0_KPENTER 96
+#define E0_RCTRL   97
+#define E0_KPSLASH 98
+#define E0_PRSCR   99
+#define E0_RALT    100
+#define E0_BREAK   101  /* (control-pause) */
+#define E0_HOME    102
+#define E0_UP      103
+#define E0_PGUP    104
+#define E0_LEFT    105
+#define E0_RIGHT   106
+#define E0_END     107
+#define E0_DOWN    108
+#define E0_PGDN    109
+#define E0_INS     110
+#define E0_DEL     111
+
+#define E1_PAUSE   119
+
+/*
+ * The keycodes below are randomly located in 89-95,112-118,120-127.
+ * They could be thrown away (and all occurrences below replaced by 0),
+ * but that would force many users to use the `setkeycodes' utility, where
+ * they needed not before. It does not matter that there are duplicates, as
+ * long as no duplication occurs for any single keyboard.
+ */
+#define SC_LIM 89
+
+#define FOCUS_PF1 85           /* actual code! */
+#define FOCUS_PF2 89
+#define FOCUS_PF3 90
+#define FOCUS_PF4 91
+#define FOCUS_PF5 92
+#define FOCUS_PF6 93
+#define FOCUS_PF7 94
+#define FOCUS_PF8 95
+#define FOCUS_PF9 120
+#define FOCUS_PF10 121
+#define FOCUS_PF11 122
+#define FOCUS_PF12 123
+
+#define JAP_86     124
+/* tfj@olivia.ping.dk:
+ * The four keys are located over the numeric keypad, and are
+ * labelled A1-A4. It's an rc930 keyboard, from
+ * Regnecentralen/RC International, Now ICL.
+ * Scancodes: 59, 5a, 5b, 5c.
+ */
+#define RGN1 124
+#define RGN2 125
+#define RGN3 126
+#define RGN4 127
+
+static unsigned char high_keys[128 - SC_LIM] = {
+  RGN1, RGN2, RGN3, RGN4, 0, 0, 0,                   /* 0x59-0x5f */
+  0, 0, 0, 0, 0, 0, 0, 0,                            /* 0x60-0x67 */
+  0, 0, 0, 0, 0, FOCUS_PF11, 0, FOCUS_PF12,          /* 0x68-0x6f */
+  0, 0, 0, FOCUS_PF2, FOCUS_PF9, 0, 0, FOCUS_PF3,    /* 0x70-0x77 */
+  FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7,        /* 0x78-0x7b */
+  FOCUS_PF8, JAP_86, FOCUS_PF10, 0                   /* 0x7c-0x7f */
+};
+
+/* BTC */
+#define E0_MACRO   112
+/* LK450 */
+#define E0_F13     113
+#define E0_F14     114
+#define E0_HELP    115
+#define E0_DO      116
+#define E0_F17     117
+#define E0_KPMINPLUS 118
+/*
+ * My OmniKey generates e0 4c for  the "OMNI" key and the
+ * right alt key does nada. [kkoller@nyx10.cs.du.edu]
+ */
+#define E0_OK	124
+/*
+ * New microsoft keyboard is rumoured to have
+ * e0 5b (left window button), e0 5c (right window button),
+ * e0 5d (menu button). [or: LBANNER, RBANNER, RMENU]
+ * [or: Windows_L, Windows_R, TaskMan]
+ */
+#define E0_MSLW	125
+#define E0_MSRW	126
+#define E0_MSTM	127
+
+static unsigned char e0_keys[128] = {
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x00-0x07 */
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x08-0x0f */
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x10-0x17 */
+  0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0,	      /* 0x18-0x1f */
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x20-0x27 */
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x28-0x2f */
+  0, 0, 0, 0, 0, E0_KPSLASH, 0, E0_PRSCR,	      /* 0x30-0x37 */
+  E0_RALT, 0, 0, 0, 0, E0_F13, E0_F14, E0_HELP,	      /* 0x38-0x3f */
+  E0_DO, E0_F17, 0, 0, 0, 0, E0_BREAK, E0_HOME,	      /* 0x40-0x47 */
+  E0_UP, E0_PGUP, 0, E0_LEFT, E0_OK, E0_RIGHT, E0_KPMINPLUS, E0_END,/* 0x48-0x4f */
+  E0_DOWN, E0_PGDN, E0_INS, E0_DEL, 0, 0, 0, 0,	      /* 0x50-0x57 */
+  0, 0, 0, E0_MSLW, E0_MSRW, E0_MSTM, 0, 0,	      /* 0x58-0x5f */
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x60-0x67 */
+  0, 0, 0, 0, 0, 0, 0, E0_MACRO,		      /* 0x68-0x6f */
+  0, 0, 0, 0, 0, 0, 0, 0,			      /* 0x70-0x77 */
+  0, 0, 0, 0, 0, 0, 0, 0			      /* 0x78-0x7f */
+};
+
+int setkeycode(unsigned int scancode, unsigned int keycode)
+{
+	if (scancode < SC_LIM || scancode > 255 || keycode > 127)
+	  return -EINVAL;
+	if (scancode < 128)
+	  high_keys[scancode - SC_LIM] = keycode;
+	else
+	  e0_keys[scancode - 128] = keycode;
+	return 0;
+}
+
+int getkeycode(unsigned int scancode)
+{
+	return
+	  (scancode < SC_LIM || scancode > 255) ? -EINVAL :
+	  (scancode < 128) ? high_keys[scancode - SC_LIM] :
+	    e0_keys[scancode - 128];
+}
+
+void sunkbd_inchar(unsigned char ch, unsigned char status, struct pt_regs *regs);
+static void keyboard_timer (unsigned long ignored);
+
+static struct timer_list
+auto_repeat_timer = { NULL, NULL, 0, 0, keyboard_timer };
+
+/* Keeps track of the last pressed key */
+static unsigned char last_keycode;
+
+static void
+keyboard_timer (unsigned long ignored)
+{
+	unsigned long flags;
+
+	save_flags(flags); cli();
+
+	/* Auto repeat: send regs = 0 to indicate autorepeat */
+	sunkbd_inchar (last_keycode, 0, 0);
+	del_timer (&auto_repeat_timer);
+	auto_repeat_timer.expires = jiffies + HZ/20;
+	add_timer (&auto_repeat_timer);
+	restore_flags(flags);
+}
+
+/* #define SKBD_DEBUG */
+/* This is our keyboard 'interrupt' routine. */
+void sunkbd_inchar(unsigned char ch, unsigned char status, struct pt_regs *regs)
+{
+	unsigned char keycode;
+	char up_flag;                          /* 0 or SUNKBD_UBIT */
+	char raw_mode;
+
+	if(ch == SKBD_RESET) {
+		kbd_reset_pending = 1;
+		return;
+	}
+	if(ch == SKBD_LYOUT) {
+		kbd_layout_pending = 1;
+		return;
+	}
+	if(kbd_reset_pending) {
+		sunkbd_type = ch;
+		kbd_reset_pending = 0;
+		if(ch == SUNKBD_TYPE4)
+			send_cmd(SKBDCMD_GLAYOUT);
+		return;
+	} else if(kbd_layout_pending) {
+		sunkbd_layout = ch;
+		kbd_layout_pending = 0;
+		return;
+	} else if(ch == SKBD_ALLUP) {
+		/* eat it */
+		return;
+	}
+#ifdef SKBD_DEBUG
+	if(ch == 0x7f)
+		printk("KBD<ALL KEYS UP>");
+	else
+		printk("KBD<%x %s>", ch,
+		       ((ch&0x80) ? "UP" : "DOWN"));
+#endif
+
+	/* Whee, a real character. */
+	if (regs){
+		pt_regs = regs;
+		last_keycode = keycode = ch;
+	} else
+		keycode = ch;
+	
+	mark_bh(KEYBOARD_BH);
+	do_poke_blanked_console = 1;
+	mark_bh(CONSOLE_BH);
+	kbd = kbd_table + fg_console;
+	tty = ttytab[fg_console];
+	if((raw_mode = (kbd->kbdmode == VC_RAW))) {
+		if (kbd_redirected == fg_console+1)
+			push_kbd (keycode);
+		else
+			put_queue(keycode);
+		/* we do not return yet, because we want to maintain
+		 * the key_down array, so that we have the correct
+		 * values  when finishing RAW mode or when changing VT's.
+		 */
+	}
+	up_flag = (keycode & SUNKBD_UBIT);  /* The 'up' bit */
+	keycode &= SUNKBD_KMASK;            /* all the rest */
+	del_timer (&auto_repeat_timer);
+	if(up_flag) {
+		rep = 0;
+		clear_bit(keycode, key_down);
+	} else {
+		auto_repeat_timer.expires = jiffies+HZ/5;
+		add_timer (&auto_repeat_timer);
+		rep = set_bit(keycode, key_down);
+	}
+
+	if(raw_mode)
+		return;
+
+	if(kbd->kbdmode == VC_MEDIUMRAW) {
+		put_queue(keycode + up_flag);
+		return;
+	}
+
+ 	/*
+	 * Small change in philosophy: earlier we defined repetition by
+	 *	 rep = keycode == prev_keycode;
+	 *	 prev_keycode = keycode;
+	 * but now by the fact that the depressed key was down already.
+	 * Does this ever make a difference? Yes.
+	 */
+
+	/*
+ 	 *  Repeat a key only if the input buffers are empty or the
+ 	 *  characters get echoed locally. This makes key repeat usable
+ 	 *  with slow applications and under heavy loads.
+	 */
+	if (!rep ||
+	    (vc_kbd_mode(kbd,VC_REPEAT) && tty &&
+	     (L_ECHO(tty) || (tty->driver.chars_in_buffer(tty) == 0)))) {
+		u_short keysym;
+		u_char type;
+
+		/* the XOR below used to be an OR */
+		int shift_final = shift_state ^ kbd->lockstate;
+		ushort *key_map = key_maps[shift_final];
+
+		if (key_map != NULL) {
+			keysym = key_map[keycode];
+			type = KTYP(keysym);
+
+			if (type >= 0xf0) {
+			    type -= 0xf0;
+			    if (type == KT_LETTER) {
+				type = KT_LATIN;
+				if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
+				    key_map = key_maps[shift_final ^ (1<<KG_SHIFT)];
+				    if (key_map)
+				      keysym = key_map[keycode];
+				}
+			    }
+			    (*key_handler[type])(keysym & 0xff, up_flag);
+			    if (type != KT_SLOCK)
+			      kbd->slockstate = 0;
+			}
+		} else {
+			/* maybe beep? */
+			/* we have at least to update shift_state */
+			compute_shiftstate();
+		}
+	}
+}
+
+static void put_queue(int ch)
+{
+	wake_up(&keypress_wait);
+	if (tty) {
+		tty_insert_flip_char(tty, ch, 0);
+		tty_schedule_flip(tty);
+	}
+}
+
+static void puts_queue(char *cp)
+{
+	wake_up(&keypress_wait);
+	if (!tty)
+		return;
+
+	while (*cp) {
+		tty_insert_flip_char(tty, *cp, 0);
+		cp++;
+	}
+	tty_schedule_flip(tty);
+}
+
+static void applkey(int key, char mode)
+{
+	static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
+
+	buf[1] = (mode ? 'O' : '[');
+	buf[2] = key;
+	puts_queue(buf);
+}
+
+static void enter(void)
+{
+	put_queue(13);
+	if (vc_kbd_mode(kbd,VC_CRLF))
+		put_queue(10);
+}
+
+static void caps_toggle(void)
+{
+	if (rep)
+		return;
+	chg_vc_kbd_led(kbd, VC_CAPSLOCK);
+}
+
+static void caps_on(void)
+{
+	if (rep)
+		return;
+	set_vc_kbd_led(kbd, VC_CAPSLOCK);
+}
+
+static void show_ptregs(void)
+{
+	if (pt_regs)
+		show_regs(pt_regs);
+}
+
+static void hold(void)
+{
+	if (rep || !tty)
+		return;
+
+	/*
+	 * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty);
+	 * these routines are also activated by ^S/^Q.
+	 * (And SCROLLOCK can also be set by the ioctl KDSKBLED.)
+	 */
+	if (tty->stopped)
+		start_tty(tty);
+	else
+		stop_tty(tty);
+}
+
+static void num(void)
+{
+	if (vc_kbd_mode(kbd,VC_APPLIC))
+		applkey('P', 1);
+	else
+		bare_num();
+}
+
+/*
+ * Bind this to Shift-NumLock if you work in application keypad mode
+ * but want to be able to change the NumLock flag.
+ * Bind this to NumLock if you prefer that the NumLock key always
+ * changes the NumLock flag.
+ */
+static void bare_num(void)
+{
+	if (!rep)
+		chg_vc_kbd_led(kbd,VC_NUMLOCK);
+}
+
+static void lastcons(void)
+{
+	/* switch to the last used console, ChN */
+	set_console(last_console);
+}
+
+static void decr_console(void)
+{
+	int i;
+ 
+	for (i = fg_console-1; i != fg_console; i--) {
+		if (i == -1)
+			i = MAX_NR_CONSOLES-1;
+		if (vc_cons_allocated(i))
+			break;
+	}
+	set_console(i);
+}
+
+static void incr_console(void)
+{
+	int i;
+
+	for (i = fg_console+1; i != fg_console; i++) {
+		if (i == MAX_NR_CONSOLES)
+			i = 0;
+		if (vc_cons_allocated(i))
+			break;
+	}
+	set_console(i);
+}
+
+static void send_intr(void)
+{
+	if (!tty)
+		return;
+	tty_insert_flip_char(tty, 0, TTY_BREAK);
+	tty_schedule_flip(tty);
+}
+
+static void scroll_forw(void)
+{
+	scrollfront(0);
+}
+
+static void scroll_back(void)
+{
+	scrollback(0);
+}
+
+static void boot_it(void)
+{
+	extern int obp_system_intr(void);
+
+	if (!obp_system_intr())
+		ctrl_alt_del();
+	/* sigh.. attempt to prevent multiple entry */
+	last_keycode=1;
+	rep = 0;
+}
+
+static void compose(void)
+{
+	dead_key_next = 1;
+}
+
+int spawnpid, spawnsig;
+
+static void spawn_console(void)
+{
+        if (spawnpid)
+	   if(kill_proc(spawnpid, spawnsig, 1))
+	     spawnpid = 0;
+}
+
+static void SAK(void)
+{
+	do_SAK(tty);
+#if 0
+	/*
+	 * Need to fix SAK handling to fix up RAW/MEDIUM_RAW and
+	 * vt_cons modes before we can enable RAW/MEDIUM_RAW SAK
+	 * handling.
+	 * 
+	 * We should do this some day --- the whole point of a secure
+	 * attention key is that it should be guaranteed to always
+	 * work.
+	 */
+	reset_vc(fg_console);
+	do_unblank_screen();	/* not in interrupt routine? */
+#endif
+}
+
+static void do_ignore(unsigned char value, char up_flag)
+{
+}
+
+static void do_null()
+{
+	compute_shiftstate();
+}
+
+static void do_spec(unsigned char value, char up_flag)
+{
+	if (up_flag)
+		return;
+	if (value >= SIZE(spec_fn_table))
+		return;
+	spec_fn_table[value]();
+}
+
+static void do_lowercase(unsigned char value, char up_flag)
+{
+	printk("keyboard.c: do_lowercase was called - impossible\n");
+}
+
+static void do_self(unsigned char value, char up_flag)
+{
+	if (up_flag)
+		return;		/* no action, if this is a key release */
+
+	if (diacr)
+		value = handle_diacr(value);
+
+	if (dead_key_next) {
+		dead_key_next = 0;
+		diacr = value;
+		return;
+	}
+
+	put_queue(value);
+}
+
+#define A_GRAVE  '`'
+#define A_ACUTE  '\''
+#define A_CFLEX  '^'
+#define A_TILDE  '~'
+#define A_DIAER  '"'
+#define A_CEDIL  ','
+static unsigned char ret_diacr[NR_DEAD] =
+	{A_GRAVE, A_ACUTE, A_CFLEX, A_TILDE, A_DIAER, A_CEDIL };
+
+/* If a dead key pressed twice, output a character corresponding to it,	*/
+/* otherwise just remember the dead key.				*/
+
+static void do_dead(unsigned char value, char up_flag)
+{
+	if (up_flag)
+		return;
+
+	value = ret_diacr[value];
+	if (diacr == value) {   /* pressed twice */
+		diacr = 0;
+		put_queue(value);
+		return;
+	}
+	diacr = value;
+}
+
+
+/* If space is pressed, return the character corresponding the pending	*/
+/* dead key, otherwise try to combine the two.				*/
+
+unsigned char handle_diacr(unsigned char ch)
+{
+	int d = diacr;
+	int i;
+
+	diacr = 0;
+	if (ch == ' ')
+		return d;
+
+	for (i = 0; i < accent_table_size; i++) {
+		if (accent_table[i].diacr == d && accent_table[i].base == ch)
+			return accent_table[i].result;
+	}
+
+	put_queue(d);
+	return ch;
+}
+
+static void do_cons(unsigned char value, char up_flag)
+{
+	if (up_flag)
+		return;
+	want_console = value;
+}
+
+static void do_fn(unsigned char value, char up_flag)
+{
+	if (up_flag)
+		return;
+	if (value < SIZE(func_table)) {
+		if (func_table[value])
+			puts_queue(func_table[value]);
+	} else
+		printk("do_fn called with value=%d\n", value);
+}
+
+static void do_pad(unsigned char value, char up_flag)
+{
+	static const char *pad_chars = "0123456789+-*/\015,.?";
+	static const char *app_map = "pqrstuvwxylSRQMnn?";
+
+	if (up_flag)
+		return;		/* no action, if this is a key release */
+
+	/* kludge... shift forces cursor/number keys */
+	if (vc_kbd_mode(kbd,VC_APPLIC) && !k_down[KG_SHIFT]) {
+		applkey(app_map[value], 1);
+		return;
+	}
+
+	if (!vc_kbd_led(kbd,VC_NUMLOCK))
+		switch (value) {
+			case KVAL(K_PCOMMA):
+			case KVAL(K_PDOT):
+				do_fn(KVAL(K_REMOVE), 0);
+				return;
+			case KVAL(K_P0):
+				do_fn(KVAL(K_INSERT), 0);
+				return;
+			case KVAL(K_P1):
+				do_fn(KVAL(K_SELECT), 0);
+				return;
+			case KVAL(K_P2):
+				do_cur(KVAL(K_DOWN), 0);
+				return;
+			case KVAL(K_P3):
+				do_fn(KVAL(K_PGDN), 0);
+				return;
+			case KVAL(K_P4):
+				do_cur(KVAL(K_LEFT), 0);
+				return;
+			case KVAL(K_P6):
+				do_cur(KVAL(K_RIGHT), 0);
+				return;
+			case KVAL(K_P7):
+				do_fn(KVAL(K_FIND), 0);
+				return;
+			case KVAL(K_P8):
+				do_cur(KVAL(K_UP), 0);
+				return;
+			case KVAL(K_P9):
+				do_fn(KVAL(K_PGUP), 0);
+				return;
+			case KVAL(K_P5):
+				applkey('G', vc_kbd_mode(kbd, VC_APPLIC));
+				return;
+		}
+
+	put_queue(pad_chars[value]);
+	if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
+		put_queue(10);
+}
+
+static void do_cur(unsigned char value, char up_flag)
+{
+	static const char *cur_chars = "BDCA";
+	if (up_flag)
+		return;
+
+	applkey(cur_chars[value], vc_kbd_mode(kbd,VC_CKMODE));
+}
+
+static void do_shift(unsigned char value, char up_flag)
+{
+	int old_state = shift_state;
+
+	if (rep)
+		return;
+
+	/* Mimic typewriter:
+	   a CapsShift key acts like Shift but undoes CapsLock */
+	if (value == KVAL(K_CAPSSHIFT)) {
+		value = KVAL(K_SHIFT);
+		if (!up_flag)
+			clr_vc_kbd_led(kbd, VC_CAPSLOCK);
+	}
+
+	if (up_flag) {
+		/* handle the case that two shift or control
+		   keys are depressed simultaneously */
+		if (k_down[value])
+			k_down[value]--;
+	} else
+		k_down[value]++;
+
+	if (k_down[value])
+		shift_state |= (1 << value);
+	else
+		shift_state &= ~ (1 << value);
+
+	/* kludge, no joke... */
+	if (up_flag && shift_state != old_state && npadch != -1) {
+		put_queue(npadch & 0xff);
+		npadch = -1;
+	}
+}
+
+/* called after returning from RAW mode or when changing consoles -
+   recompute k_down[] and shift_state from key_down[] */
+/* maybe called when keymap is undefined, so that shiftkey release is seen */
+void compute_shiftstate(void)
+{
+	int i, j, k, sym, val;
+
+	shift_state = 0;
+	for(i=0; i < SIZE(k_down); i++)
+	  k_down[i] = 0;
+
+	for(i=0; i < SIZE(key_down); i++)
+	  if(key_down[i]) {	/* skip this word if not a single bit on */
+	    k = i*BITS_PER_LONG;
+	    for(j=0; j<BITS_PER_LONG; j++,k++)
+	      if(test_bit(k, key_down)) {
+		sym = U(plain_map[k]);
+		if(KTYP(sym) == KT_SHIFT) {
+		  val = KVAL(sym);
+		  if (val == KVAL(K_CAPSSHIFT))
+		    val = KVAL(K_SHIFT);
+		  k_down[val]++;
+		  shift_state |= (1<<val);
+		}
+	      }
+	  }
+}
+
+static void do_meta(unsigned char value, char up_flag)
+{
+	if (up_flag)
+		return;
+
+	if (vc_kbd_mode(kbd, VC_META)) {
+		put_queue('\033');
+		put_queue(value);
+	} else
+		put_queue(value | 0x80);
+}
+
+static void do_ascii(unsigned char value, char up_flag)
+{
+	int base;
+
+	if (up_flag)
+		return;
+
+	if (value < 10)    /* decimal input of code, while Alt depressed */
+	    base = 10;
+	else {       /* hexadecimal input of code, while AltGr depressed */
+	    value -= 10;
+	    base = 16;
+	}
+
+	if (npadch == -1)
+	  npadch = value;
+	else
+	  npadch = npadch * base + value;
+}
+
+static void do_lock(unsigned char value, char up_flag)
+{
+	if (up_flag || rep)
+		return;
+	chg_vc_kbd_lock(kbd, value);
+}
+
+/*
+ * The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
+ * or (ii) whatever pattern of lights people want to show using KDSETLED,
+ * or (iii) specified bits of specified words in kernel memory.
+ */
+
+static unsigned char ledstate = 0xff; /* undefined */
+static unsigned char ledioctl;
+
+unsigned char getledstate(void) {
+    return ledstate;
+}
+
+void setledstate(struct kbd_struct *kbd, unsigned int led) {
+    if (!(led & ~7)) {
+	ledioctl = led;
+	kbd->ledmode = LED_SHOW_IOCTL;
+    } else
+	kbd->ledmode = LED_SHOW_FLAGS;
+    set_leds();
+}
+
+static struct ledptr {
+    unsigned int *addr;
+    unsigned int mask;
+    unsigned char valid:1;
+} ledptrs[3];
+
+void register_leds(int console, unsigned int led,
+		   unsigned int *addr, unsigned int mask) {
+    struct kbd_struct *kbd = kbd_table + console;
+    if (led < 3) {
+	ledptrs[led].addr = addr;
+	ledptrs[led].mask = mask;
+	ledptrs[led].valid = 1;
+	kbd->ledmode = LED_SHOW_MEM;
+    } else
+	kbd->ledmode = LED_SHOW_FLAGS;
+}
+
+static inline unsigned char getleds(void){
+    struct kbd_struct *kbd = kbd_table + fg_console;
+    unsigned char leds;
+
+    if (kbd->ledmode == LED_SHOW_IOCTL)
+      return ledioctl;
+    leds = kbd->ledflagstate;
+    if (kbd->ledmode == LED_SHOW_MEM) {
+	if (ledptrs[0].valid) {
+	    if (*ledptrs[0].addr & ledptrs[0].mask)
+	      leds |= 1;
+	    else
+	      leds &= ~1;
+	}
+	if (ledptrs[1].valid) {
+	    if (*ledptrs[1].addr & ledptrs[1].mask)
+	      leds |= 2;
+	    else
+	      leds &= ~2;
+	}
+	if (ledptrs[2].valid) {
+	    if (*ledptrs[2].addr & ledptrs[2].mask)
+	      leds |= 4;
+	    else
+	      leds &= ~4;
+	}
+    }
+    return leds;
+}
+
+/*
+ * This routine is the bottom half of the keyboard interrupt
+ * routine, and runs with all interrupts enabled. It does
+ * console changing, led setting and copy_to_cooked, which can
+ * take a reasonably long time.
+ *
+ * Aside from timing (which isn't really that important for
+ * keyboard interrupts as they happen often), using the software
+ * interrupt routines for this thing allows us to easily mask
+ * this when we don't want any of the above to happen. Not yet
+ * used, but this allows for easy and efficient race-condition
+ * prevention later on.
+ */
+static void kbd_bh(void)
+{
+	unsigned char leds = getleds();
+
+	if (leds != ledstate) {
+		ledstate = leds;
+		send_cmd(SKBDCMD_SETLED);
+		send_cmd(vcleds_to_sunkbd(leds));
+	}
+}
+
+int kbd_init(void)
+{
+	int i, opt_node;
+	struct kbd_struct kbd0;
+	extern struct tty_driver console_driver;
+
+	kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS;
+	kbd0.ledmode = LED_SHOW_FLAGS;
+	kbd0.lockstate = KBD_DEFLOCK;
+	kbd0.modeflags = KBD_DEFMODE;
+	kbd0.kbdmode = VC_XLATE;
+ 
+	for (i = 0 ; i < MAX_NR_CONSOLES ; i++)
+		kbd_table[i] = kbd0;
+
+	ttytab = console_driver.table;
+
+	/* XXX Check keyboard-click? property in 'options' PROM node XXX */
+	if(sparc_cpu_model != sun4) {
+		opt_node = prom_getchild(prom_root_node);
+		opt_node = prom_searchsiblings(opt_node, "options");
+		i = prom_getintdefault(opt_node, "keyboard-click?", -1);
+		if(i != -1)
+			sunkbd_clickp = 1;
+		else
+			sunkbd_clickp = 0;
+	} else {
+		sunkbd_clickp = 0;
+	}
+	init_bh(KEYBOARD_BH, kbd_bh);
+	mark_bh(KEYBOARD_BH);
+	return 0;
+}
+
+/* /dev/kbd support */
+
+#define KBD_QSIZE 32
+static Firm_event kbd_queue [KBD_QSIZE];
+static int kbd_head, kbd_tail;
+char kbd_opened;
+static struct wait_queue *kbd_wait;
+static struct fasync_struct *kb_fasync;
+
+void
+push_kbd (int scan)
+{
+	int next = (kbd_head + 1) % KBD_QSIZE;
+
+	if (scan == KBD_IDLE)
+		return;
+	if (next != kbd_tail){
+		kbd_queue [kbd_head].id = scan & KBD_KEYMASK;
+		kbd_queue [kbd_head].value=scan & KBD_UP ? VKEY_UP : VKEY_DOWN;
+		kbd_queue [kbd_head].time = xtime;
+		kbd_head = next;
+	}
+	if (kb_fasync)
+		kill_fasync (kb_fasync, SIGIO);
+	wake_up_interruptible (&kbd_wait);
+}
+
+static int
+kbd_read (struct inode *inode, struct file *f, char *buffer, int count)
+{
+	struct wait_queue wait = { current, NULL };
+	char *end, *p;
+
+	/* Return EWOULDBLOCK, because this is what the X server expects */
+	if (kbd_head == kbd_tail){
+		if (f->f_flags & O_NONBLOCK)
+			return -EWOULDBLOCK;
+		add_wait_queue (&kbd_wait, &wait);
+		while (kbd_head == kbd_tail && !(current->signal & ~current->blocked)){
+			current->state = TASK_INTERRUPTIBLE;
+			schedule ();
+		}
+		current->state = TASK_RUNNING;
+		remove_wait_queue (&kbd_wait, &wait);
+	}
+	/* There is data in the keyboard, fill the user buffer */
+	end = buffer+count;
+	p = buffer;
+	for (; p < end && kbd_head != kbd_tail; p += sizeof (Firm_event)){
+		*(Firm_event *)p = kbd_queue [kbd_tail];
+#ifdef KBD_DEBUG
+		printk ("[%s]", kbd_queue [kbd_tail].value == VKEY_UP ? "UP" : "DOWN");
+#endif
+		kbd_tail++;
+		kbd_tail %= KBD_QSIZE;
+	}
+	return p-buffer;
+}
+
+/* Needed by X */
+static int
+kbd_fasync (struct inode *inode, struct file *filp, int on)
+{
+	int retval;
+
+	retval = fasync_helper (inode, filp, on, &kb_fasync);
+	if (retval < 0)
+		return retval;
+	return 0;
+}
+
+static int
+kbd_select (struct inode *i, struct file *f, int sel_type, select_table *wait)
+{
+	if (sel_type != SEL_IN)
+		return 0;
+	if (kbd_head != kbd_tail)
+		return 1;
+	select_wait (&kbd_wait, wait);
+	return 0;
+}
+
+static int
+kbd_ioctl (struct inode *i, struct file *f, unsigned int cmd, unsigned long arg)
+{
+	switch (cmd){
+	case KIOCTYPE:	          /* return keyboard type */
+		if (verify_area (VERIFY_WRITE, (void *)arg, sizeof (int)))
+			return -EFAULT;
+	        *(int *) arg = sunkbd_type;
+		break;
+	case KIOCGTRANS:
+		if (verify_area (VERIFY_WRITE, (void *) arg, sizeof (int)))
+			return -EFAULT;
+	        *(int *) arg = TR_UNTRANS_EVENT;
+		break;
+	case KIOCTRANS:
+		if (verify_area (VERIFY_READ, (void *) arg, sizeof (int)))
+			return -EFAULT;
+	        if (*(int *) arg != TR_UNTRANS_EVENT)
+			return -EINVAL;
+		break;
+	case KIOCLAYOUT:
+		if (verify_area (VERIFY_WRITE, (void *) arg, sizeof (int)))
+			return -EFAULT;
+	        *(int *) arg = sunkbd_layout;
+		break;
+	case KIOCSDIRECT:
+		if (verify_area (VERIFY_WRITE, (void *) arg, sizeof (int)))
+			return -EFAULT;
+#ifndef CODING_NEW_DRIVER
+		if (*(int *) arg)
+			kbd_redirected = fg_console + 1;
+		else
+			kbd_redirected = 0;
+		kbd_table [fg_console].kbdmode = kbd_redirected ? VC_RAW : VC_XLATE;
+#endif
+		break;
+	case KIOCCMD:
+		/* Need to support beep on/off, keyclick on/off */
+		return 0;
+	case FIONREAD:		/* return number of bytes in kbd queue */
+	{
+		int count;
+		
+		if (verify_area (VERIFY_WRITE, (void *) arg, sizeof (int)))
+			return -EFAULT;
+		count = kbd_head - kbd_tail;
+		* (int *)arg = (count < 0) ? KBD_QSIZE - count : count;
+		return 0;
+	}
+	default:
+		printk ("Unknown Keyboard ioctl: %8.8x\n", cmd);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int
+kbd_open (struct inode *i, struct file *f)
+{
+	if (kbd_opened)
+		return 0;
+	kbd_opened = fg_console + 1;
+	kbd_head = kbd_tail = 0;
+	return 0;
+}
+
+static void
+kbd_close (struct inode *i, struct file *f)
+{
+	if (kbd_redirected)
+		kbd_table [kbd_opened-1].kbdmode = VC_XLATE;
+	kbd_redirected = 0;
+	kbd_opened = 0;
+
+	kbd_fasync (i, f, 0);
+}
+
+static struct
+file_operations kbd_fops =
+{
+	NULL,			/* seek */
+	kbd_read,		/* read */
+	NULL,			/* write */
+	NULL,			/* readdir */
+	kbd_select,		/* select */
+	kbd_ioctl,		/* ioctl */
+	NULL,			/* mmap */
+	kbd_open,		/* open */
+	kbd_close,		/* close */
+	NULL,			/* fsync */
+	kbd_fasync,		/* fasync */
+	NULL,			/* check_media_change */
+	NULL,			/* revalidate */
+};
+
+void
+keyboard_zsinit(void)
+{
+	int timeout = 0;
+
+	/* Test out the leds */
+	sunkbd_type = 255;
+	send_cmd(SKBDCMD_RESET);
+	while((sunkbd_type==255) && timeout < 500000) {
+		udelay(100);
+		timeout += 20;
+	}
+
+	if(timeout>=500000) {
+		printk("keyboard: not present\n");
+		return;
+	}
+
+	if(sunkbd_type != SUNKBD_TYPE4) {
+		printk("Sun TYPE %d keyboard detected ", sunkbd_type);
+	} else {
+		udelay(200);
+		timeout=0;
+		while(timeout++ < 500000)
+			barrier();
+		printk("Sun TYPE %d keyboard detected ",
+		       ((sunkbd_layout==SUNKBD_LOUT_TYP5) ? 5 : 4));
+	}
+	if(sunkbd_type == SUNKBD_TYPE2)
+		sunkbd_clickp = 0;
+
+	if(sunkbd_clickp)
+		printk("with keyclick\n");
+	else
+		printk("without keyclick\n");
+
+	/* Dork with led lights, then turn them all off */
+	send_cmd(SKBDCMD_SETLED); send_cmd(0xf); /* All on */
+	send_cmd(SKBDCMD_SETLED); send_cmd(0x0); /* All off */
+
+	/* Register the /dev/kbd interface */
+	if (register_chrdev (KBD_MAJOR, "kbd", &kbd_fops)){
+		printk ("Could not register /dev/kbd device\n");
+		return;
+	}
+	return;
+}