[ARM] ARM keyboard code fixups for the input layer.

The ARM specific parts of the input layer are being submitted via
Vojtech.  This cset covers the arch/arm and include/asm-arm parts
of the changes necessary to use these drivers.

arch/arm/lib/kbd.c

 #include <linux/config.h>
 #include <linux/kd.h>
+#include <linux/kbd_ll.h>
+#include <linux/kbd_kern.h>
 
-int  (*k_setkeycode)(unsigned int, unsigned int);
-int  (*k_getkeycode)(unsigned int);
-int  (*k_translate)(unsigned char, unsigned char *, char);
-char (*k_unexpected_up)(unsigned char);
+/*
+ * 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
+
+/* for USB 106 keyboard */
+#define E0_YEN         124
+#define E0_BACKSLASH   89
+
+
+#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, E0_BACKSLASH, 0, 0,	/* 0x70-0x77 */
+	0, 0, 0, E0_YEN, 0, 0, 0, 0	/* 0x78-0x7f */
+};
+
+static int gen_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;
+}
+
+static int gen_getkeycode(unsigned int scancode)
+{
+	return
+	    (scancode < SC_LIM || scancode > 255) ? -EINVAL :
+	    (scancode <
+	     128) ? high_keys[scancode - SC_LIM] : e0_keys[scancode - 128];
+}
+
+static int
+gen_translate(unsigned char scancode, unsigned char *keycode, char raw_mode)
+{
+	static int prev_scancode = 0;
+
+	/* special prefix scancodes.. */
+	if (scancode == 0xe0 || scancode == 0xe1) {
+		prev_scancode = scancode;
+		return 0;
+	}
+
+	/* 0xFF is sent by a few keyboards, ignore it. 0x00 is error */
+	if (scancode == 0x00 || scancode == 0xff) {
+		prev_scancode = 0;
+		return 0;
+	}
+
+	scancode &= 0x7f;
+
+	if (prev_scancode) {
+		/*
+		 * usually it will be 0xe0, but a Pause key generates
+		 * e1 1d 45 e1 9d c5 when pressed, and nothing when released
+		 */
+		if (prev_scancode != 0xe0) {
+			if (prev_scancode == 0xe1 && scancode == 0x1d) {
+				prev_scancode = 0x100;
+				return 0;
+			}
+				else if (prev_scancode == 0x100
+					 && scancode == 0x45) {
+				*keycode = E1_PAUSE;
+				prev_scancode = 0;
+			} else {
+#ifdef KBD_REPORT_UNKN
+				if (!raw_mode)
+					printk(KERN_INFO
+					       "keyboard: unknown e1 escape sequence\n");
+#endif
+				prev_scancode = 0;
+				return 0;
+			}
+		} else {
+			prev_scancode = 0;
+			/*
+			 *  The keyboard maintains its own internal caps lock and
+			 *  num lock statuses. In caps lock mode E0 AA precedes make
+			 *  code and E0 2A follows break code. In num lock mode,
+			 *  E0 2A precedes make code and E0 AA follows break code.
+			 *  We do our own book-keeping, so we will just ignore these.
+			 */
+			/*
+			 *  For my keyboard there is no caps lock mode, but there are
+			 *  both Shift-L and Shift-R modes. The former mode generates
+			 *  E0 2A / E0 AA pairs, the latter E0 B6 / E0 36 pairs.
+			 *  So, we should also ignore the latter. - aeb@cwi.nl
+			 */
+			if (scancode == 0x2a || scancode == 0x36)
+				return 0;
+
+			if (e0_keys[scancode])
+				*keycode = e0_keys[scancode];
+			else {
+#ifdef KBD_REPORT_UNKN
+				if (!raw_mode)
+					printk(KERN_INFO
+					       "keyboard: unknown scancode e0 %02x\n",
+					       scancode);
+#endif
+				return 0;
+			}
+		}
+	} else if (scancode >= SC_LIM) {
+		/* This happens with the FOCUS 9000 keyboard
+		   Its keys PF1..PF12 are reported to generate
+		   55 73 77 78 79 7a 7b 7c 74 7e 6d 6f
+		   Moreover, unless repeated, they do not generate
+		   key-down events, so we have to zero up_flag below */
+		/* Also, Japanese 86/106 keyboards are reported to
+		   generate 0x73 and 0x7d for \ - and \ | respectively. */
+		/* Also, some Brazilian keyboard is reported to produce
+		   0x73 and 0x7e for \ ? and KP-dot, respectively. */
+
+		*keycode = high_keys[scancode - SC_LIM];
+
+		if (!*keycode) {
+			if (!raw_mode) {
+#ifdef KBD_REPORT_UNKN
+				printk(KERN_INFO
+				       "keyboard: unrecognized scancode (%02x)"
+				       " - ignored\n", scancode);
+#endif
+			}
+			return 0;
+		}
+	} else
+		*keycode = scancode;
+	return 1;
+}
+
+static char gen_unexpected_up(unsigned char keycode)
+{
+	/* unexpected, but this can happen: maybe this was a key release for a
+	   FOCUS 9000 PF key; if we want to see it, we have to clear up_flag */
+	if (keycode >= SC_LIM || keycode == 85)
+		return 0;
+	else
+		return 0200;
+}
+
+/*
+ * These are the default mappings
+ */
+int  (*k_setkeycode)(unsigned int, unsigned int) = gen_setkeycode;
+int  (*k_getkeycode)(unsigned int) = gen_getkeycode;
+int  (*k_translate)(unsigned char, unsigned char *, char) = gen_translate;
+char (*k_unexpected_up)(unsigned char) = gen_unexpected_up;
 void (*k_leds)(unsigned char);
 
+/* Simple translation table for the SysRq keys */
+
 #ifdef CONFIG_MAGIC_SYSRQ
-int k_sysrq_key;
-unsigned char *k_sysrq_xlate;
+static unsigned char gen_sysrq_xlate[128] =
+	"\000\0331234567890-=\177\t"	/* 0x00 - 0x0f */
+	"qwertyuiop[]\r\000as"	/* 0x10 - 0x1f */
+	"dfghjkl;'`\000\\zxcv"	/* 0x20 - 0x2f */
+	"bnm,./\000*\000 \000\201\202\203\204\205"	/* 0x30 - 0x3f */
+	"\206\207\210\211\212\000\000789-456+1"	/* 0x40 - 0x4f */
+	"230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000"	/* 0x50 - 0x5f */
+	"\r\000/";			/* 0x60 - 0x6f */
+
+unsigned char *k_sysrq_xlate = gen_sysrq_xlate;
+int k_sysrq_key = 0x54;
 #endif

include/asm-arm/arch-ebsa285/keyboard.h

@@ -6,63 +6,4 @@
  * Copyright (C) 1998-2001 Russell King
  * (C) 1998 Phil Blundell
  */
-#include <linux/config.h>
-#include <linux/ioport.h>
-#include <asm/irq.h>
-#include <asm/system.h>
-
-#define KEYBOARD_IRQ		IRQ_ISA_KEYBOARD
-#define NR_SCANCODES		128
-
-#define kbd_disable_irq()	do { } while (0)
-#define kbd_enable_irq()	do { } while (0)
-
-extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
-extern int pckbd_getkeycode(unsigned int scancode);
-extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
-			   char raw_mode);
-extern char pckbd_unexpected_up(unsigned char keycode);
-extern void pckbd_leds(unsigned char leds);
-extern void pckbd_init_hw(void);
-extern unsigned char pckbd_sysrq_xlate[128];
-
-static inline void kbd_init_hw(void)
-{
-	if (have_isa_bridge) {
-		k_setkeycode    = pckbd_setkeycode;
-		k_getkeycode    = pckbd_getkeycode;
-		k_translate     = pckbd_translate;
-		k_unexpected_up = pckbd_unexpected_up;
-		k_leds          = pckbd_leds;
-#ifdef CONFIG_MAGIC_SYSRQ
-		k_sysrq_key     = 0x54;
-		k_sysrq_xlate   = pckbd_sysrq_xlate;
-#endif
-		pckbd_init_hw();
-	}
-}
-
-
-/*
- * The rest of this file is to do with supporting pc_keyb.c
- */
-
-/* resource allocation */
-#define kbd_request_region()	request_region(0x60, 16, "keyboard")
-#define kbd_request_irq(handler) request_irq(KEYBOARD_IRQ, handler, 0, \
-					     "keyboard", NULL)
-
-/* How to access the keyboard macros on this platform.  */
-#define kbd_read_input() inb(KBD_DATA_REG)
-#define kbd_read_status() inb(KBD_STATUS_REG)
-#define kbd_write_output(val) outb(val, KBD_DATA_REG)
-#define kbd_write_command(val) outb(val, KBD_CNTL_REG)
-
-/* Some stoneage hardware needs delays after some operations.  */
-#define kbd_pause() do { } while(0)
-
-#define aux_request_irq(hand, dev_id)					\
-	request_irq(AUX_IRQ, hand, SA_SHIRQ, "PS/2 Mouse", dev_id)
-
-#define aux_free_irq(dev_id) free_irq(AUX_IRQ, dev_id)
-
+#define kbd_init_hw()		do { } while (0)

include/asm-arm/arch-integrator/keyboard.h

@@ -17,13 +17,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  *  Keyboard driver definitions for the Integrator architecture
+ *  Now using the input subsystem...
  */
-#include <asm/irq.h>
-
-#define NR_SCANCODES 128
-
-extern int kmi_kbd_init(void);
-
-#define kbd_disable_irq()	disable_irq(IRQ_KMIINT0)
-#define kbd_enable_irq()	enable_irq(IRQ_KMIINT0)
-#define kbd_init_hw()		kmi_kbd_init()
+#define kbd_init_hw()		do { } while (0)

include/asm-arm/arch-rpc/keyboard.h

@@ -8,13 +8,6 @@
  * published by the Free Software Foundation.
  *
  *  Keyboard driver definitions for RiscPC architecture
+ *  Now using the input subsystem...
  */
-#include <asm/irq.h>
-
-#define NR_SCANCODES 128
-
-extern int ps2kbd_init_hw(void);
-
-#define kbd_disable_irq()	disable_irq(IRQ_KEYBOARDRX)
-#define kbd_enable_irq()	enable_irq(IRQ_KEYBOARDRX)
-#define kbd_init_hw()		ps2kbd_init_hw()
+#define kbd_init_hw()		do { } while (0)

include/asm-arm/arch-sa1100/keyboard.h

@@ -8,21 +8,13 @@
 
 #include <linux/config.h>
 #include <asm/mach-types.h>
-#include <asm/arch/assabet.h>
 
-#define kbd_disable_irq()	do { } while(0)
-#define kbd_enable_irq()	do { } while(0)
-
-extern int sa1111_kbd_init_hw(void);
 extern void gc_kbd_init_hw(void);
 extern void smartio_kbd_init_hw(void);
 extern void cerf_kbd_init_hw(void);
 
 static inline void kbd_init_hw(void)
 {
-	if ((machine_is_assabet() && machine_has_neponset()) ||
-	    machine_is_graphicsmaster())
-		sa1111_kbd_init_hw();
 	if (machine_is_graphicsclient())
 		gc_kbd_init_hw();
 	if (machine_is_adsbitsy())
@@ -31,11 +23,6 @@ static inline void kbd_init_hw(void)
 	if (machine_is_cerf())
 		cerf_kbd_init_hw();
 #endif
-#ifdef CONFIG_SA1100_PT_SYSTEM3
-	/* TODO: add system 3 board specific functions here */
-	if (machine_is_pt_system3())
-		sa1111_kbd_init_hw();
-#endif
 }
 
 #endif  /* _SA1100_KEYBOARD_H */

include/asm-arm/hardware/sa1111.h

@@ -529,120 +529,31 @@
  *
  */
 
-#define _KBD( x )   _SA1111( 0x0A00 )
-#define _MSE( x )   _SA1111( 0x0C00 )
-
-#define _KBDCR	    _SA1111( 0x0A00 )
-#define _KBDSTAT    _SA1111( 0x0A04 )
-#define _KBDDATA    _SA1111( 0x0A08 )
-#define _KBDCLKDIV  _SA1111( 0x0A0C )
-#define _KBDPRECNT  _SA1111( 0x0A10 )
-#define _MSECR	    _SA1111( 0x0C00 )
-#define _MSESTAT    _SA1111( 0x0C04 )
-#define _MSEDATA    _SA1111( 0x0C08 )
-#define _MSECLKDIV  _SA1111( 0x0C0C )
-#define _MSEPRECNT  _SA1111( 0x0C10 )
-
-#if ( LANGUAGE == C )
-
-#define KBDCR		__CCREG(0x0a00)
-#define KBDSTAT		__CCREG(0x0a04)
-#define KBDDATA		__CCREG(0x0a08)
-#define KBDCLKDIV	__CCREG(0x0a0c)
-#define KBDPRECNT	__CCREG(0x0a10)
-#define MSECR		__CCREG(0x0c00)
-#define MSESTAT		__CCREG(0x0c04)
-#define MSEDATA		__CCREG(0x0c08)
-#define MSECLKDIV	__CCREG(0x0c0c)
-#define MSEPRECNT	__CCREG(0x0c10)
-
-#define KBDCR_ENA        0x08
-#define KBDCR_FKD        0x02
-#define KBDCR_FKC        0x01
-
-#define KBDSTAT_TXE      0x80
-#define KBDSTAT_TXB      0x40
-#define KBDSTAT_RXF      0x20
-#define KBDSTAT_RXB      0x10
-#define KBDSTAT_ENA      0x08
-#define KBDSTAT_RXP      0x04
-#define KBDSTAT_KBD      0x02
-#define KBDSTAT_KBC      0x01
-
-#define KBDCLKDIV_DivVal     Fld(4,0)
-
-#define MSECR_ENA        0x08
-#define MSECR_FKD        0x02
-#define MSECR_FKC        0x01
-
-#define MSESTAT_TXE      0x80
-#define MSESTAT_TXB      0x40
-#define MSESTAT_RXF      0x20
-#define MSESTAT_RXB      0x10
-#define MSESTAT_ENA      0x08
-#define MSESTAT_RXP      0x04
-#define MSESTAT_MSD      0x02
-#define MSESTAT_MSC      0x01
-
-#define MSECLKDIV_DivVal     Fld(4,0)
-
-#define KBDTEST1_CD      0x80
-#define KBDTEST1_RC1         0x40
-#define KBDTEST1_MC      0x20
-#define KBDTEST1_C       Fld(2,3)
-#define KBDTEST1_T2      0x40
-#define KBDTEST1_T1      0x20
-#define KBDTEST1_T0      0x10
-#define KBDTEST2_TICBnRES    0x08
-#define KBDTEST2_RKC         0x04
-#define KBDTEST2_RKD         0x02
-#define KBDTEST2_SEL         0x01
-#define KBDTEST3_ms_16       0x80
-#define KBDTEST3_us_64       0x40
-#define KBDTEST3_us_16       0x20
-#define KBDTEST3_DIV8        0x10
-#define KBDTEST3_DIn         0x08
-#define KBDTEST3_CIn         0x04
-#define KBDTEST3_KD      0x02
-#define KBDTEST3_KC      0x01
-#define KBDTEST4_BC12        0x80
-#define KBDTEST4_BC11        0x40
-#define KBDTEST4_TRES        0x20
-#define KBDTEST4_CLKOE       0x10
-#define KBDTEST4_CRES        0x08
-#define KBDTEST4_RXB         0x04
-#define KBDTEST4_TXB         0x02
-#define KBDTEST4_SRX         0x01
-
-#define MSETEST1_CD      0x80
-#define MSETEST1_RC1         0x40
-#define MSETEST1_MC      0x20
-#define MSETEST1_C       Fld(2,3)
-#define MSETEST1_T2      0x40
-#define MSETEST1_T1      0x20
-#define MSETEST1_T0      0x10
-#define MSETEST2_TICBnRES    0x08
-#define MSETEST2_RKC         0x04
-#define MSETEST2_RKD         0x02
-#define MSETEST2_SEL         0x01
-#define MSETEST3_ms_16       0x80
-#define MSETEST3_us_64       0x40
-#define MSETEST3_us_16       0x20
-#define MSETEST3_DIV8        0x10
-#define MSETEST3_DIn         0x08
-#define MSETEST3_CIn         0x04
-#define MSETEST3_KD      0x02
-#define MSETEST3_KC      0x01
-#define MSETEST4_BC12        0x80
-#define MSETEST4_BC11        0x40
-#define MSETEST4_TRES        0x20
-#define MSETEST4_CLKOE       0x10
-#define MSETEST4_CRES        0x08
-#define MSETEST4_RXB         0x04
-#define MSETEST4_TXB         0x02
-#define MSETEST4_SRX         0x01
+#define SA1111_KBD		0x0a00
+#define SA1111_MSE		0x0c00
 
-#endif  /* LANGUAGE == C */
+/*
+ * These are offsets from the above bases.
+ */
+#define SA1111_PS2CR		0x0000
+#define SA1111_PS2STAT		0x0004
+#define SA1111_PS2DATA		0x0008
+#define SA1111_PS2CLKDIV	0x000c
+#define SA1111_PS2PRECNT	0x0010
+
+#define PS2CR_ENA		0x08
+#define PS2CR_FKD		0x02
+#define PS2CR_FKC		0x01
+
+#define PS2STAT_STP		0x0100
+#define PS2STAT_TXE		0x0080
+#define PS2STAT_TXB		0x0040
+#define PS2STAT_RXF		0x0020
+#define PS2STAT_RXB		0x0010
+#define PS2STAT_ENA		0x0008
+#define PS2STAT_RXP		0x0004
+#define PS2STAT_KBD		0x0002
+#define PS2STAT_KBC		0x0001
 
 /*
  * PCMCIA Interface