patch-2.1.79 linux/arch/ppc/boot/kbd.c

• Lines: 247
• Date: Mon Jan 12 15:18:13 1998
• Orig file: v2.1.78/linux/arch/ppc/boot/kbd.c
• Orig date: Thu Sep 4 17:07:29 1997

diff -u --recursive --new-file v2.1.78/linux/arch/ppc/boot/kbd.c linux/arch/ppc/boot/kbd.c
@@ -1,19 +1,10 @@
-/* Keyboard handler */
 
-#include <../drivers/char/defkeymap.c> /* yeah I know it's bad */
+#include <linux/keyboard.h>
 
-#define	L		0x0001	/* locking function */
-#define	SHF		0x0002	/* keyboard shift */
-#define	ALT		0x0004	/* alternate shift -- alternate chars */
-#define	NUM		0x0008	/* numeric shift  cursors vs. numeric */
-#define	CTL		0x0010	/* control shift  -- allows ctl function */
-#define	CPS		0x0020	/* caps shift -- swaps case of letter */
-#define	ASCII		0x0040	/* ascii code for this key */
-#define	STP		0x0080	/* stop output */
-#define	FUNC		0x0100	/* function key */
-#define	SCROLL		0x0200	/* scroll lock key */
+#include <../drivers/char/defkeymap.c>	/* yeah I know it's bad */
 
-unsigned char shfts, ctls, alts, caps, num, stp;
+
+unsigned char shfts, ctls, alts, caps;
 
 #define	KBDATAP		0x60	/* kbd data port */
 #define	KBSTATUSPORT	0x61	/* kbd status */
@@ -21,37 +12,15 @@
 #define	KBINRDY		0x01
 #define	KBOUTRDY	0x02
 
-#define _x__ 0x00  /* Unknown / unmapped */
 
-const unsigned short action[] = {
-	0,     ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII,	/* scan  0- 7 */
-	ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII,	/* scan  8-15 */
-	ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII,	/* scan 16-23 */
-	ASCII, ASCII, ASCII, ASCII, ASCII,   CTL, ASCII, ASCII,	/* scan 24-31 */
-	ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII,	/* scan 32-39 */
-	ASCII, ASCII,   SHF, ASCII, ASCII, ASCII, ASCII, ASCII,	/* scan 40-47 */
-	ASCII, ASCII, ASCII, ASCII, ASCII, ASCII,   SHF, ASCII,	/* scan 48-55 */
-	  ALT, ASCII,   CPS,  FUNC,  FUNC,  FUNC,  FUNC,  FUNC,	/* scan 56-63 */
-	 FUNC,  FUNC,  FUNC,  FUNC,  FUNC,   NUM,SCROLL, ASCII,	/* scan 64-71 */
-	ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII, ASCII,	/* scan 72-79 */
-	ASCII, ASCII, ASCII, ASCII,     0,     0,     0,     0,	/* scan 80-87 */
-	0,0,0,0,0,0,0,0,	/* scan 88-95 */
-	0,0,0,0,0,0,0,0,	/* scan 96-103 */
-	0,0,0,0,0,0,0,0,	/* scan 104-111 */
-	0,0,0,0,0,0,0,0,	/* scan 112-119 */
-	0,0,0,0,0,0,0,0,	/* scan 120-127 */
-};
-
-static int
-kbd(noblock)
-	int noblock;
+static int kbd(int noblock)
 {
-	unsigned char dt, brk, act;
-	int first = 1;	
+	unsigned char dt, brk, val;
+	unsigned code;
 loop:
 	if (noblock) {
-		if ((inb(KBSTATP) & KBINRDY) == 0)
-			return (-1);
+	    if ((inb(KBSTATP) & KBINRDY) == 0)
+		return (-1);
 	} else while((inb(KBSTATP) & KBINRDY) == 0) ;
 
 	dt = inb(KBDATAP);
@@ -59,72 +28,102 @@
 	brk = dt & 0x80;	/* brk == 1 on key release */
 	dt = dt & 0x7f;		/* keycode */
 
-	act = action[dt];
-	if (/*act&SHF*/ dt == 54)
-		shfts = brk ? 0 : 1;
-	if (/*act&ALT*/ dt == 48)
-		alts = brk ? 0 : 1;
-	if (/*act&NUM*/ dt == 69)
-		if (act&L) {
-			/* NUM lock */
-			if(!brk)
-				num = !num;
-		} else
-			num = brk ? 0 : 1;
-	if (/*act&CTL*/ dt == 29)
-		ctls = brk ? 0 : 1;
-	if (/*act&CPS*/ dt == 58)
-		if (act&L) {
-			/* CAPS lock */
-			if(!brk)
-				caps = !caps;
-		} else
-			caps = brk ? 0 : 1;
-	if (0/*act&STP*/)
-		if (act&L) {
-			if(!brk)
-				stp = !stp;
-		} else
-			stp = brk ? 0 : 1;
-
-	if ((act&ASCII) && !brk) {
-		unsigned char chr;
-		if (shfts)
-			chr = shift_map[dt];
-		else if (ctls)
-			chr = ctrl_map[dt];
-		else
-			chr = plain_map[dt];
+	if (shfts)
+	    code = shift_map[dt];
+	else if (ctls)
+	    code = ctrl_map[dt];
+	else
+	    code = plain_map[dt];
+
+	val = KVAL(code);
+	switch (KTYP(code) & 0x0f) {
+	    case KT_LATIN:
+		if (brk)
+		    break;
 		if (alts)
-			chr |= 0x80;
+		    val |= 0x80;
+		if (val == 0x7f)	/* map delete to backspace */
+		    val = '\b';
+		return val;
+
+	    case KT_LETTER:
+		if (brk)
+		    break;
+		if (caps)
+		    val -= 'a'-'A';
+		return val;
+
+	    case KT_SPEC:
+		if (brk)
+		    break;
+		if (val == KVAL(K_CAPS))
+		    caps = !caps;
+		else if (val == KVAL(K_ENTER)) {
+enter:		    /* Wait for key up */
+		    while (1) {
+			while((inb(KBSTATP) & KBINRDY) == 0) ;
+			dt = inb(KBDATAP);
+			if (dt & 0x80) /* key up */ break;
+		    }
+		    return 10;
+		}
+		break;
+
+	    case KT_PAD:
+		if (brk)
+		    break;
+		if (val < 10)
+		    return val;
+		if (val == KVAL(K_PENTER))
+		    goto enter;
+		break;
+
+	    case KT_SHIFT:
+		switch (val) {
+		    case KG_SHIFT:
+		    case KG_SHIFTL:
+		    case KG_SHIFTR:
+			shfts = brk ? 0 : 1;
+			break;
+		    case KG_ALT:
+		    case KG_ALTGR:
+			alts = brk ? 0 : 1;
+			break;
+		    case KG_CTRL:
+		    case KG_CTRLL:
+		    case KG_CTRLR:
+			ctls = brk ? 0 : 1;
+			break;
+		}
+		break;
 
-		if (caps && (chr >= 'a' && chr <= 'z'))
-			chr -= 'a' - 'A' ;
-		if ( chr == 0x01 ) chr = '\n'; /* hack */
-#define CTRL(s) (s & 0x1F)			
-		if ((chr == '\r') || (chr == '\n') || (chr == CTRL('A')) || (chr == CTRL('S')))
-		{
-			/* Wait for key up */
-			while (1)
-			{
-				while((inb(KBSTATP) & KBINRDY) == 0) ;
-				dt = inb(KBDATAP);
-				if (dt & 0x80) /* key up */ break;
-			}
+	    case KT_LOCK:
+		switch (val) {
+		    case KG_SHIFT:
+		    case KG_SHIFTL:
+		    case KG_SHIFTR:
+			if (brk)
+			    shfts = !shfts;
+			break;
+		    case KG_ALT:
+		    case KG_ALTGR:
+			if (brk)
+			    alts = !alts;
+			break;
+		    case KG_CTRL:
+		    case KG_CTRLL:
+		    case KG_CTRLR:
+			if (brk)
+			    ctls = !ctls;
+			break;
 		}
-		return (chr);
+		break;
 	}
-	if (first && brk) return (0);  /* Ignore initial 'key up' codes */
+	if (brk) return (0);  /* Ignore initial 'key up' codes */
 	goto loop;
 }
 
-static
-scankbd(void) {
-	return (kbd(1) != -1);
-}
-
-static 
-kbdreset(void)
+static void kbdreset(void)
 {
 	unsigned char c;
 	int i;
@@ -151,7 +150,7 @@
 
 static int kbd_reset = 0;
 
-CRT_getc(void)
+int CRT_getc(void)
 {
 	int c;
 	if (!kbd_reset) {kbdreset(); kbd_reset++; }
@@ -159,7 +158,7 @@
 	return(c);
 }
 
-CRT_tstc(void)
+int CRT_tstc(void)
 {
 	if (!kbd_reset) {kbdreset(); kbd_reset++; }
 	return ((inb(KBSTATP) & KBINRDY) != 0);