Edward Flottwell <edward@mudhoney.mitropa.com> wrote the following

about his kernel patch for allowing the kernel to work with an

adapted AS400 keyboard.

(In fact no kernel patch is required - the utility setkeycodes will do.

But the technical info below might be useful for somebody.)

----aeb

"Keyboard.c patch for IBM Keyboards" (Aug  9, 20:04):

> The last 2 Weekends I spent on hacking a little bit in the keyboard code to

> make a keyboard from a IBM AS400 Terminal work with LinuX. It's a very nice

> piece of hardware, 122 keys and 2 kg :-), mostly used in Banks and

> Companies. I got mine from a bank service company for 10 Marks (aprox.

> 7.5$).

> 

> The patch against keyboard.c from 1.3.15 and a README is following:

> 

> --------------------------------schnipp-----------------------------------

--- keyboard.1.3.15.orig	Wed Aug  9 12:51:28 1995

+++ keyboard.c	Wed Aug  9 13:11:56 1995

@@ -39,6 +39,11 @@

 #define KBD_REPORT_ERR

 #define KBD_REPORT_UNKN

 /* #define KBD_IS_FOCUS_9000 */

+/* #define KBD_IS_IBM_AS400 */

+

+/* When using an original IBM AS_400 Keyboard you should enable both

+ * KBD_IS_FOCUS_9000 and KBD_IS_IBM_AS400

+ */

 #ifndef KBD_DEFMODE

 #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))

@@ -228,6 +233,29 @@

 #define E1_PAUSE   119

+#ifdef KBD_IS_IBM_AS400 

+#define E0_GR      105

+#define E0_SIGN    43

+#define E0_LINE    108

+#define IBM_PF9    112

+#define IBM_PF10   113

+#define IBM_PF11   114

+#define IBM_PF12   115

+#define IBM_PF13   116

+#define IBM_PF14   117

+#define IBM_PF15   118

+#define IBM_PF16   120

+#define IBM_PF17   121

+#define IBM_PF18   122

+#define IBM_PF19   123

+#define IBM_PF20   124

+#define IBM_PF21   125

+#define IBM_PF22   126

+#define IBM_PF23   127

+#define IBM_PF24   119

+#endif

+

+

 /*

  * 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),

@@ -262,6 +290,7 @@

 #define RGN3 126

 #define RGN4 127

+#ifndef KBD_IS_IBM_AS400

 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 */

@@ -270,6 +299,20 @@

   FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7,        /* 0x78-0x7b */

   FOCUS_PF8, JAP_86, FOCUS_PF10, 0                   /* 0x7c-0x7f */

 };

+#endif

+#ifdef KBD_IS_IBM_AS400

+static unsigned char high_keys[128 - SC_LIM] = {

+  FOCUS_PF2, FOCUS_PF3, FOCUS_PF4, FOCUS_PF5, FOCUS_PF6,

+  FOCUS_PF7, FOCUS_PF8,          /* 0x59-0x5f */

+  IBM_PF9, IBM_PF10, IBM_PF11, IBM_PF12,

+  IBM_PF13, IBM_PF14, IBM_PF15, IBM_PF16,    /* 0x60-0x67 */

+  IBM_PF17, IBM_PF18, IBM_PF19, IBM_PF20, IBM_PF21, 

+  IBM_PF22, IBM_PF23, E0_PGUP, /* 0x68-0x6f */

+  E0_GR, E0_RCTRL, E0_RALT, 0, E0_SIGN, 0, IBM_PF24, E0_LINE, /* 0x70-0x77 */

+  E0_UP, E0_DEL, E0_END, E0_INS,        /* 0x78-0x7b */

+  0, E0_RIGHT, E0_PGDN, E0_HOME                /* 0x7c-0x7f */

+};

+#endif

 /* BTC */

 #define E0_MACRO   112

--------------------------------schnipp-----------------------------------

This is an explaining README.  ( README.AS400 )

--------------------------------schnipp-----------------------------------

	Connecting and using a non standard IBM keyboard

				by 

			Edward von Flottwell 

		     edward@mudhoney.mitropa.com

If you would like to use an old IBM 122-key AS400 Terminal keyboard with Linux,

you should to do some small things:

1. Get your 'new' keyboard from a recycling company. 

   If you haven't done this already :-)

2. Solder a new 5pin DIN Connector instead of the RJ/??? Plug to the wire.

3. Patch the kernel and build an new one.

4. Load a new keymap and fit it to your needs.

I hope you managed the first step - so I'll continue with the second one:

Get a keyboard connector from your nearest electronic-shop, cut off the

original plug and you will hopefully find 4 colored wires: black, red,

yellow and white. Connect them in the following way with the DIN Plug:

	Wire	Signal	DIN	  ___	

	Black	+5V	4	 / 3 \  Soldering

	White	GND	2	(2   4)	View

	Red	Data	3	 \1^5/

	Yellow	Clock	1	  

BUT BE VERY CAREFUL!!! Connecting the wrong signals can damage or blow up 

your keyboard or your mainboard! The table above comes with NO warranty,

because I don't believe IBM always use the same type of cable :-}

You should open the keyboard and trace the wires to find the matching out.

And you should consult your mainboard for the keyboard-plug layout!

Now you're ready to switch on the computer... Some mainboard bioses will

produce a keyboard error. You can ignore this :-) BTW the F1 key is the 

very left of the function-key group near the tabulator key.

O.K., now you can try to type something, e.g. LILO: linux :-)

You will find out that some keys are swapped, others are dead. To make all

of the keys work apply the kernel-patch to 

/usr/src/linux/drivers/char/keyboard.c and comment the lines with

/* #define KBD_IS_FOCUS_9000 */

/* #define KBD_IS_IBM_AS400 */

out. Recompile and install the new kernel.

Now you need the last missing part: the keymap. At the end of this README

you will find an example for German users. How to make it fit to your

national keyboard is explained in the Keystroke-HOWTO. Most other questions 

about keymaps, scancodes,... are explained there, too. 

I would also suggest you read the manpages of showkey and loadkeys. 

Don't forget to load the keymap every time you boot, 

I prefer the rc.local shellscript doing this for me :-)

The keymap:

#

# File:        AS400.map

#

keycode   0 =

keycode   1 = Escape           Escape

	alt     keycode   1 = Meta_Escape

	shift alt keycode 1 = Meta_Escape

keycode   2 = one              exclam

	alt     keycode   2 = Meta_one

	shift alt keycode 2 = Meta_exclam

keycode   3 = two              quotedbl         twosuperior

	control keycode   3 = nul

	alt     keycode   3 = Meta_two

	shift alt keycode 3 = Meta_quotedbl

keycode   4 = three            section          threesuperior

	control keycode   4 = Escape

	alt     keycode   4 = Meta_three

keycode   5 = four             dollar           dollar

	control keycode   5 = Control_backslash

	alt     keycode   5 = Meta_four

	shift alt keycode 5 = Meta_dollar

keycode   6 = five             percent

	control keycode   6 = Control_bracketright

	alt     keycode   6 = Meta_five

	shift alt keycode 6 = Meta_percent

keycode   7 = six              ampersand

	control keycode   7 = Control_asciicircum

	alt     keycode   7 = Meta_six

	shift alt keycode 7 = Meta_ampersand

keycode   8 = seven            slash            braceleft

	control keycode   8 = Control_underscore

	alt     keycode   8 = Meta_seven

	shift alt keycode 8 = Meta_slash

keycode   9 = eight            parenleft        bracketleft

	control keycode   9 = Delete

	alt     keycode   9 = Meta_eight

	shift alt keycode 9 = Meta_parenleft

keycode  10 = nine             parenright       bracketright

	alt     keycode  10 = Meta_nine

 	control altgr keycode 10 = Control_bracketright

	shift alt keycode 10 = Meta_parenright

keycode  11 = zero             equal            braceright

	alt     keycode  11 = Meta_zero

	shift alt keycode 11 = Meta_equal

keycode  12 = ssharp           question         backslash

	control keycode  12 = Control_underscore

	alt     keycode  12 = Meta_minus

 	control altgr keycode  12 = Control_backslash

	shift alt keycode 12 = Meta_question

	alt altgr keycode 12 = Meta_backslash

keycode  13 = apostrophe       grave

	alt     keycode  13 = Meta_equal

	shift alt keycode 13 = Meta_grave

keycode  14 = Delete           Delete

	alt     keycode  14 = Meta_Delete

keycode  15 = Tab              Tab

	alt     keycode  15 = Meta_Tab

keycode  16 = q

	altgr	keycode 16 = at

	control keycode 16 = Control_q

	alt	keycode 16 = Meta_q

	shift alt keycode 16 = Meta_Q

	altgr	alt	keycode 16 = Meta_at

keycode  17 = w

	control keycode 17 = Control_w

	alt	keycode 17 = Meta_w

	shift alt keycode 17 = Meta_W

keycode  18 = e

	control keycode 18 = Control_e

	alt	keycode 18 = Meta_e

	shift alt keycode 18 = Meta_E

keycode  19 = r

	control keycode 19 = Control_r

	alt	keycode 19 = Meta_r

	shift alt keycode 19 = Meta_R

keycode  20 = t

	control keycode 20 = Control_t

	alt	keycode 20 = Meta_t

	shift alt keycode 20 = Meta_T

keycode  21 = z

	control keycode 21 = Control_z

	alt	keycode 21 = Meta_z

	shift alt keycode 21 = Meta_Z

keycode  22 = u

	control keycode 22 = Control_u

	alt	keycode 22 = Meta_u

	shift alt keycode 22 = Meta_U

keycode  23 = i

	alt	keycode 23 = Meta_i

	shift alt keycode 23 = Meta_I

keycode  24 = o

	control keycode 24 = Control_o

	alt	keycode 24 = Meta_o

	shift alt keycode 24 = Meta_O

keycode  25 = p

	control keycode 25 = Control_p

	alt	keycode 25 = Meta_p

	shift alt keycode 25 = Meta_P

keycode  26 = +udiaeresis       +Udiaeresis

	control keycode  26 = Escape

	alt     keycode  26 = Meta_bracketleft

	shift alt keycode 26 = Meta_braceleft

keycode  27 = plus             asterisk         asciitilde

	control keycode  27 = Control_bracketright

	alt     keycode  27 = Meta_bracketright

	shift alt keycode 27 = Meta_braceright

keycode  28 = Return

	alt     keycode  28 = 0x080d

keycode  29 = Caps_Lock

keycode  30 = a

	control keycode 30 = Control_a

	alt	keycode 30 = Meta_a

	shift alt keycode 30 = Meta_A

keycode  31 = s

	control keycode 31 = Control_s

	alt	keycode 31 = Meta_s

	shift alt keycode 31 = Meta_S

keycode  32 = d

	control keycode 32 = Control_d

	alt	keycode 32 = Meta_d

	shift alt keycode 32 = Meta_D

keycode  33 = f

	control keycode 33 = Control_f

	alt	keycode 33 = Meta_f

	shift alt keycode 33 = Meta_F

keycode  34 = g

	control keycode 34 = Control_g

	alt	keycode 34 = Meta_g

	shift alt keycode 34 = Meta_G

keycode  35 = h

	alt	keycode 35 = Meta_h

	shift alt keycode 35 = Meta_H

keycode  36 = j

	alt	keycode 36 = Meta_j

	shift alt keycode 36 = Meta_J

keycode  37 = k

	control keycode 37 = Control_k

	alt	keycode 37 = Meta_k

	shift alt keycode 37 = Meta_K

keycode  38 = l

	control keycode 38 = Control_l

	alt	keycode 38 = Meta_l

	shift alt keycode 38 = Meta_L

keycode  39 = +odiaeresis       +Odiaeresis

	alt     keycode  39 = Meta_semicolon

	shift alt keycode 39 = Meta_colon

	shift keycode  39 = Odiaeresis

keycode  40 = +adiaeresis       +Adiaeresis

	control keycode  40 = Control_g

	alt     keycode  40 = Meta_apostrophe

	shift alt keycode 40 = Meta_quotedbl

keycode  41 = asciicircum  degree

	control keycode  41 = nul

	alt     keycode  41 = Meta_grave

	shift alt keycode 41 = Meta_asciitilde

keycode  42 = Shift

keycode  43 = numbersign       apostrophe

	control keycode  43 = Control_backslash

	alt     keycode  43 = Meta_backslash

	shift alt keycode 43 = Meta_apostrophe

keycode  44 = y

	control keycode 44 = Control_y

	alt	keycode 44 = Meta_y

	shift alt keycode 44 = Meta_Y

keycode  45 = x

	control keycode 45 = Control_x

	alt	keycode 45 = Meta_x

	shift alt keycode 45 = Meta_X

keycode  46 = c

	control keycode 46 = Control_c

	alt	keycode 46 = Meta_c

	shift alt keycode 46 = Meta_C

keycode  47 = v

	control keycode 47 = Control_v

	alt	keycode 47 = Meta_v

	shift alt keycode 47 = Meta_V

keycode  48 = b

	control keycode 48 = Control_b

	alt	keycode 48 = Meta_b

	shift alt keycode 48 = Meta_B

keycode  49 = n

	control keycode 49 = Control_n

	alt	keycode 49 = Meta_n

	shift alt keycode 49 = Meta_N

keycode  50 = m

	altgr	keycode 50 = mu

	control keycode 50 = Control_m

	alt	keycode 50 = Meta_m

	shift alt keycode 50 = Meta_M

keycode  51 = comma            semicolon

	alt     keycode  51 = Meta_comma

	alt shift keycode 51 = Meta_semicolon

keycode  52 = period           colon

	alt     keycode  52 = Meta_period

	alt shift keycode 21 = Meta_colon

keycode  53 = minus            underscore

	control keycode  53 = Delete

	alt     keycode  53 = Meta_slash

	shift control keycode 53 = Control_underscore

keycode  54 = Shift

keycode  55 = KP_Multiply

keycode  56 = Control

keycode  57 = space            space

	control keycode  57 = nul

	alt     keycode  57 = Meta_space

keycode 58 = Control

keycode  59 = Escape           Escape

	alt     keycode   1 = Meta_Escape

	shift alt keycode 1 = Meta_Escape

keycode  60 = Control_z

keycode  61 = 

keycode  62 = Last_Console

keycode  63 = Control_a

keycode  64 = Up

keycode  65 = Control_backslash

	control keycode  99 = Control_backslash

	alt     keycode  99 = Control_backslash

keycode  66 = Control_c

keycode  67 = Control_q

keycode  68 = Control_s

keycode  69 = Num_Lock

keycode  70 = Control_r

keycode  71 = KP_7

	alt     keycode  71 = Ascii_7

keycode  72 = KP_8

	alt     keycode  72 = Ascii_8

keycode  73 = KP_9

	alt     keycode  73 = Ascii_9

keycode  74 = KP_Subtract

keycode  75 = KP_4

	alt     keycode  75 = Ascii_4

keycode  76 = KP_5

	alt     keycode  76 = Ascii_5

keycode  77 = KP_6

	alt     keycode  77 = Ascii_6

keycode  78 = KP_Enter

keycode  79 = KP_1

	alt     keycode  79 = Ascii_1

keycode  80 = KP_2

	alt     keycode  80 = Ascii_2

keycode  81 = KP_3

	alt     keycode  81 = Ascii_3

keycode  82 = KP_0

	alt     keycode  82 = Ascii_0

keycode  83 = KP_Comma

	altgr   control keycode  83 = Boot

	control alt     keycode  83 = Boot

keycode  84 = slash

keycode  85 = Down

keycode  86 = Left

keycode  87 = F11              F11              Console_23

	control keycode  87 = F11

	alt     keycode  87 = Console_11

	control	alt     keycode  87 = Console_11

keycode  88 = F1               F11              Console_13

	control keycode  88 = F1

	alt     keycode  88 = Console_1

	control	alt     keycode  88 = Console_1

keycode  89 = F2               F12              Console_14

	control keycode  89 = F2

	alt     keycode  89 = Console_2

	control	alt     keycode  89 = Console_2

keycode  90 = F3               F13              Console_15

	control keycode  90 = F3

	alt     keycode  90 = Console_3

	control	alt     keycode  90 = Console_3

keycode  91 = F4               F14              Console_16

	control keycode  91 = F4

	alt     keycode  91 = Console_4

	control	alt     keycode  91 = Console_4

keycode  92 = F5               F15              Console_17

	control keycode  92 = F5

	alt     keycode  92 = Console_5

	control	alt     keycode  92 = Console_5

keycode  93 = F6               F16              Console_18

	control keycode  93 = F6

	alt     keycode  93 = Console_6

	control	alt     keycode  93 = Console_6

keycode  94 = F7               F17              Console_19

	control keycode  94 = F7

	alt     keycode  94 = Console_7

	control	alt     keycode  94 = Console_7

keycode  95 = F8               F18              Console_20

	control keycode  95 = F8

	alt     keycode  95 = Console_8

	control	alt     keycode  95 = Console_8

keycode  96 = KP_Enter

keycode  97 = Alt

keycode  98 = KP_Divide

keycode  99 = 

keycode 100 = AltGr

keycode 101 = Break

keycode 102 = Find

keycode 103 = Up

keycode 104 = Prior

	shift   keycode 104 = Scroll_Backward

keycode 105 = less	greater		bar

 	alt     keycode  86 = Meta_less

 	shift alt keycode  86 = Meta_greater

	altgr alt keycode  86 = Meta_bar

keycode 106 = Right

keycode 107 = Select

keycode 108 = F25

keycode 109 = Next            

	shift   keycode 109 = Scroll_Forward  

keycode 110 = Insert          

keycode 111 = Remove          

	altgr   control keycode 111 = Boot            

	control alt     keycode 111 = Boot            

keycode 112 = F9

keycode 113 = F10

keycode 114 = F11

keycode 115 = F12

keycode 116 = Console_1

keycode 117 = Console_2

keycode 118 = Console_3

keycode 119 = 

keycode 120 = Console_4

keycode 121 = Console_5

keycode 122 = Console_6

keycode 123 = Console_7

keycode 124 = Console_8

keycode 125 = F21

keycode 126 = F22

keycode 127 = F23

# mom

string F1 = "\033[[A"

string F2 = "\033[[B"

string F3 = "\033[[C"

string F4 = "\033[[D"

string F5 = "\033[[E"

string F6 = "\033[17~"

string F7 = "\033[18~"

string F8 = "\033[19~"

string F9 = "\033[20~"

string F10 = "\033[21~"

string F11 = "\033[23~"

string F12 = "\033[24~"

string F13 = "\033[25~"

string F14 = "\033[26~"

string F15 = "\033[28~"

string F16 = "\033[29~"

string F17 = "\033[31~"

string F18 = "\033[32~"

string F19 = "\033[33~"

string F20 = "\033[34~"

string Find = "\033[1~"

string Insert = "\033[2~"

string Remove = "\033[3~"

string Select = "\033[4~"

string Prior = "\033[5~"

string Next = "\033[6~"

string F21 = ""

string F22 = ""

string F23 = ""

string F24 = ""

string F25 = ""

string F26 = ""