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/*
* linux/drivers/char/hp_keyb.c
* helper-functions for the keyboard/psaux driver for HP-PARISC workstations
*
* based on pc_keyb.c by Geert Uytterhoeven & Martin Mares
*
* 2000/10/26 Debacker Xavier <debackex@esiee.fr>
* Marteau Thomas <marteaut@esiee.fr>
* Djoudi Malek <djoudim@esiee.fr>
* - fixed some keysym defines
*
* 2001/04/28 Debacker Xavier <debackex@esiee.fr>
* - scancode translation rewritten in handle_at_scancode()
*/
#include <linux/config.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/ptrace.h>
#include <linux/signal.h>
#include <linux/timer.h>
#include <linux/random.h>
#include <linux/ctype.h>
#include <linux/kbd_ll.h>
#include <linux/init.h>
#include <asm/bitops.h>
#include <asm/irq.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/system.h>
#define KBD_REPORT_ERR
#define KBD_REPORT_UNKN
#define KBD_ESCAPEE0 0xe0 /* in */
#define KBD_ESCAPEE1 0xe1 /* in */
#define ESCE0(x) (0xe000|(x))
#define ESCE1(x) (0xe100|(x))
#define KBD_BAT 0xaa /* in */
#define KBD_SETLEDS 0xed /* out */
#define KBD_ECHO 0xee /* in/out */
#define KBD_BREAK 0xf0 /* in */
#define KBD_TYPRATEDLY 0xf3 /* out */
#define KBD_SCANENABLE 0xf4 /* out */
#define KBD_DEFDISABLE 0xf5 /* out */
#define KBD_DEFAULT 0xf6 /* out */
#define KBD_ACK 0xfa /* in */
#define KBD_DIAGFAIL 0xfd /* in */
#define KBD_RESEND 0xfe /* in/out */
#define KBD_RESET 0xff /* out */
#define CODE_BREAK 1
#define CODE_ESCAPEE0 2
#define CODE_ESCAPEE1 4
#define CODE_ESCAPE12 8
#define K_NONE 0x7f
#define K_ESC 0x01
#define K_F1 0x3b
#define K_F2 0x3c
#define K_F3 0x3d
#define K_F4 0x3e
#define K_F5 0x3f
#define K_F6 0x40
#define K_F7 0x41
#define K_F8 0x42
#define K_F9 0x43
#define K_F10 0x44
#define K_F11 0x57
#define K_F12 0x58
#define K_PRNT 0x54
#define K_SCRL 0x46
#define K_BRK 0x77
#define K_AGR 0x29
#define K_1 0x02
#define K_2 0x03
#define K_3 0x04
#define K_4 0x05
#define K_5 0x06
#define K_6 0x07
#define K_7 0x08
#define K_8 0x09
#define K_9 0x0a
#define K_0 0x0b
#define K_MINS 0x0c
#define K_EQLS 0x0d
#define K_BKSP 0x0e
#define K_INS 0x6e
#define K_HOME 0x66
#define K_PGUP 0x68
#define K_NUML 0x45
#define KP_SLH 0x62
#define KP_STR 0x37
#define KP_MNS 0x4a
#define K_TAB 0x0f
#define K_Q 0x10
#define K_W 0x11
#define K_E 0x12
#define K_R 0x13
#define K_T 0x14
#define K_Y 0x15
#define K_U 0x16
#define K_I 0x17
#define K_O 0x18
#define K_P 0x19
#define K_LSBK 0x1a
#define K_RSBK 0x1b
#define K_ENTR 0x1c
#define K_DEL 111
#define K_END 0x6b
#define K_PGDN 0x6d
#define KP_7 0x47
#define KP_8 0x48
#define KP_9 0x49
#define KP_PLS 0x4e
#define K_CAPS 0x3a
#define K_A 0x1e
#define K_S 0x1f
#define K_D 0x20
#define K_F 0x21
#define K_G 0x22
#define K_H 0x23
#define K_J 0x24
#define K_K 0x25
#define K_L 0x26
#define K_SEMI 0x27
#define K_SQOT 0x28
#define K_HASH K_NONE
#define KP_4 0x4b
#define KP_5 0x4c
#define KP_6 0x4d
#define K_LSFT 0x2a
#define K_BSLH 0x2b
#define K_Z 0x2c
#define K_X 0x2d
#define K_C 0x2e
#define K_V 0x2f
#define K_B 0x30
#define K_N 0x31
#define K_M 0x32
#define K_COMA 0x33
#define K_DOT 0x34
#define K_FSLH 0x35
#define K_RSFT 0x36
#define K_UP 0x67
#define KP_1 0x4f
#define KP_2 0x50
#define KP_3 0x51
#define KP_ENT 0x60
#define K_LCTL 0x1d
#define K_LALT 0x38
#define K_SPCE 0x39
#define K_RALT 0x64
#define K_RCTL 0x61
#define K_LEFT 0x69
#define K_DOWN 0x6c
#define K_RGHT 0x6a
#define KP_0 0x52
#define KP_DOT 0x53
static unsigned char keycode_translate[256] =
{
/* 00 */ K_NONE, K_F9 , K_NONE, K_F5 , K_F3 , K_F1 , K_F2 , K_F12 ,
/* 08 */ K_NONE, K_F10 , K_F8 , K_F6 , K_F4 , K_TAB , K_AGR , K_NONE,
/* 10 */ K_NONE, K_LALT, K_LSFT, K_NONE, K_LCTL, K_Q , K_1 , K_NONE,
/* 18 */ K_NONE, K_NONE, K_Z , K_S , K_A , K_W , K_2 , K_NONE,
/* 20 */ K_NONE, K_C , K_X , K_D , K_E , K_4 , K_3 , K_NONE,
/* 28 */ K_NONE, K_SPCE, K_V , K_F , K_T , K_R , K_5 , K_NONE,
/* 30 */ K_NONE, K_N , K_B , K_H , K_G , K_Y , K_6 , K_NONE,
/* 38 */ K_NONE, K_NONE, K_M , K_J , K_U , K_7 , K_8 , K_NONE,
/* 40 */ K_NONE, K_COMA, K_K , K_I , K_O , K_0 , K_9 , K_NONE,
/* 48 */ K_NONE, K_DOT , K_FSLH, K_L , K_SEMI, K_P , K_MINS, K_NONE,
/* 50 */ K_NONE, K_NONE, K_SQOT, K_NONE, K_LSBK, K_EQLS, K_NONE, K_NONE,
/* 58 */ K_CAPS, K_RSFT, K_ENTR, K_RSBK, K_NONE, K_BSLH, K_NONE, K_NONE,
/* 60 */ K_NONE, K_HASH, K_NONE, K_NONE, K_NONE, K_NONE, K_BKSP, K_NONE,
/* 68 */ K_NONE, KP_1 , K_NONE, KP_4 , KP_7 , K_NONE, K_NONE, K_NONE,
/* 70 */ KP_0 , KP_DOT, KP_2 , KP_5 , KP_6 , KP_8 , K_ESC , K_NUML,
/* 78 */ K_F11 , KP_PLS, KP_3 , KP_MNS, KP_STR, KP_9 , K_SCRL, K_PRNT,
/* 80 */ K_NONE, K_NONE, K_NONE, K_F7 , K_NONE, K_NONE, K_NONE, K_NONE,
/* 88 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* 90 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* 98 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* a0 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* a8 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* b0 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* b8 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* c0 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* c8 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* d0 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* d8 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* e0 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* e8 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* f0 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE,
/* f8 */ K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, KBD_RESEND, K_NONE
};
/* ----- the following code stolen from pc_keyb.c */
#ifdef CONFIG_MAGIC_SYSRQ
unsigned char hp_ps2kbd_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 */
#endif
/*
* 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 /* 0x59 == 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 pckbd_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 pckbd_getkeycode(unsigned int scancode)
{
return
(scancode < SC_LIM || scancode > 255) ? -EINVAL :
(scancode < 128) ? high_keys[scancode - SC_LIM] :
e0_keys[scancode - 128];
}
int pckbd_translate(unsigned char scancode, unsigned char *keycode,
char raw_mode)
{
static int prev_scancode;
/* 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;
}
/* ----- end of stolen part ------ */
void kbd_reset_setup(void)
{
}
void handle_at_scancode(int keyval)
{
static int brk;
static int esc0;
static int esc1;
int scancode = 0;
switch (keyval) {
case KBD_BREAK :
/* sets the "release_key" bit when a key is
released. HP keyboard send f0 followed by
the keycode while AT keyboard send the keycode
with this bit set. */
brk = 0x80;
return;
case KBD_ESCAPEE0 :
/* 2chars sequence, commonly used to differenciate
the two ALT keys and the two ENTER keys and so
on... */
esc0 = 2; /* e0-xx are 2 chars */
scancode = keyval;
break;
case KBD_ESCAPEE1 :
/* 3chars sequence, only used by the Pause key. */
esc1 = 3; /* e1-xx-xx are 3 chars */
scancode = keyval;
break;
#if 0
case KBD_RESEND :
/* dunno what to do when it happens. RFC */
printk(KERN_INFO "keyboard: KBD_RESEND received.\n");
return;
#endif
case 0x14 :
/* translate e1-14-77-e1-f0-14-f0-77 to
e1-1d-45-e1-9d-c5 (the Pause key) */
if (esc1==2) scancode = brk | 0x1d;
break;
case 0x77 :
if (esc1==1) scancode = brk | 0x45;
break;
case 0x12 :
/* an extended key is e0-12-e0-xx e0-f0-xx-e0-f0-12
on HP, while it is e0-2a-e0-xx e0-(xx|80)-f0-aa
on AT. */
if (esc0==1) scancode = brk | 0x2a;
break;
}
/* translates HP scancodes to AT scancodes */
if (!scancode) scancode = brk | keycode_translate[keyval];
if (!scancode) printk(KERN_INFO "keyboard: unexpected key code %02x\n",keyval);
/* now behave like an AT keyboard */
handle_scancode(scancode,!(scancode&0x80));
if (esc0) esc0--;
if (esc1) esc1--;
/* release key bit must be unset for the next key */
brk = 0;
}
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