mirror of https://github.com/wwarthen/RomWBW.git
Browse Source
- Added KBDINFO which dumps low level info about keyboards. - Updated KBDTEST and VDCTEST to put the keyboard controller into translation mode which is what these programs were intended to use.pull/283/head
Wayne Warthen
4 years ago
11 changed files with 835 additions and 79 deletions
@ -1,5 +1,5 @@ |
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OBJECTS = |
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SUBDIRS = DMAmon I2C inttest ppidetst ramtest tstdskng rzsz kbdtest vdctest |
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SUBDIRS = DMAmon I2C inttest ppidetst ramtest tstdskng rzsz vdctest kbdtest kbdinfo |
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DEST = ../../../Binary/Apps/Test |
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TOOLS =../../../Tools |
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|
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|
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@ -0,0 +1,10 @@ |
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@echo off |
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setlocal |
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|
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set TOOLS=../../../../Tools |
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set PATH=%TOOLS%\tasm32;%PATH% |
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set TASMTABS=%TOOLS%\tasm32 |
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|
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tasm -t180 -g3 -fFF kbdinfo.asm kbdinfo.com kbdinfo.lst || exit /b |
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copy /Y kbdinfo.com ..\..\..\..\Binary\Apps\Test\ || exit /b |
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@ -0,0 +1,6 @@ |
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@echo off |
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setlocal |
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|
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if exist *.com del *.com |
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if exist *.lst del *.lst |
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if exist *.bin del *.bin |
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@ -0,0 +1,7 @@ |
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OBJECTS = kbdinfo.com |
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DEST = ../../../../Binary/Apps/Test |
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TOOLS =../../../../Tools |
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|
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USETASM=1 |
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|
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include $(TOOLS)/Makefile.inc |
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@ -0,0 +1,699 @@ |
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; |
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;======================================================================= |
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; Keyboard Information Utility (KBDINFO) |
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;======================================================================= |
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; |
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; Simple utility that attempts to determine the type of keyboard you |
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; have attached to an 8242 keyboard controller. |
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; |
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;======================================================================= |
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; |
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; Keyboard controller port addresses (adjust as needed) |
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; |
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iocmd .equ $E3 ; keyboard controller command port address |
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iodat .equ $E2 ; keyboard controller data port address |
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; |
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; General operational equates (should not requre adjustment) |
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; |
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stksiz .equ $40 ; Working stack size |
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; |
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timeout .equ $00 ; Controller timeout constant |
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; |
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restart .equ $0000 ; CP/M restart vector |
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bdos .equ $0005 ; BDOS invocation vector |
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; |
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;======================================================================= |
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; |
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.org $100 ; standard CP/M executable |
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; |
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; |
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; setup stack (save old value) |
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ld (stksav),sp ; save stack |
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ld sp,stack ; set new stack |
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; |
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call crlf |
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ld de,str_banner ; banner |
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call prtstr |
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; |
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call main ; do the real work |
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; |
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exit: |
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call crlf2 |
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ld de,str_exit |
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call prtstr |
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;call crlf |
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|
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; clean up and return to command processor |
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call crlf ; formatting |
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ld sp,(stksav) ; restore stack |
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jp restart ; return to CP/M via restart |
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; |
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; |
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;======================================================================= |
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; Main Program |
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;======================================================================= |
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; |
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main: |
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; |
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; Display active keyboard controller port addresses |
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; |
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call crlf2 |
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ld de,str_cmdport |
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call prtstr |
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ld a,iocmd |
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call prthex |
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call crlf |
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ld de,str_dataport |
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call prtstr |
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ld a,iodat |
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call prthex |
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; |
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; Attempt self-test command on keyboard controller |
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; |
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; Keyboard controller should respond with an 0x55 on data port |
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; after being sent a 0xAA on the command port. |
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; |
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call crlf2 |
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ld de,str_ctrl_test |
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call prtstr |
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ld a,$aa ; self-test command |
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call put_cmd_dbg |
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jp c,err_ctlr_io ; handle controller error |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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cp $55 ; expected value? |
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jp nz,err_ctlr_test ; handle self-test error |
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call crlf |
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ld de,str_ctrl_test_ok |
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call prtstr |
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; |
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; Disable translation on keyboard controller to get raw scan codes! |
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; |
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call crlf2 |
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ld de,str_trans_off |
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call prtstr |
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ld a,$60 ; write to command register 0 |
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call put_cmd_dbg |
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jp c,err_ctlr_io ; handle controller error |
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ld a,$20 ; xlat disabled, mouse disabled, no ints |
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call put_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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; |
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; |
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; |
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call test2 |
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; |
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; Enable translation on keyboard controller |
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; |
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call crlf2 |
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ld de,str_trans_on |
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call prtstr |
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ld a,$60 ; write to command register 0 |
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call put_cmd_dbg |
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jp c,err_ctlr_io ; handle controller error |
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ld a,$60 ; xlat disabled, mouse disabled, no ints |
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call put_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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; |
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; fall thru |
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; |
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test2: |
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; |
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; Perform a keyboard reset |
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; |
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call crlf2 |
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ld de,str_kbd_reset |
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call prtstr |
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ld a,$ff ; Keyboard reset |
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call put_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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cp $FA ; Is it an ack as expected? |
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jp nz,err_kbd_reset |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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cp $AA ; Success? |
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jp nz,err_kbd_reset |
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call crlf |
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ld de,str_kbd_reset_ok |
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call prtstr |
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; |
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; Identify keyboard |
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; |
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call crlf2 |
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ld de,str_kbd_ident |
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call prtstr |
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ld a,$f2 ; Identify keyboard command |
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call put_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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cp $FA ; Is it an ack as expected? |
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jp nz,err_kbd_ident |
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; Now we need to receive 0-2 bytes. There is no way to know |
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; how many are coming, so we receive bytes until there is a |
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; timeout error. |
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ld ix,workbuf |
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ld iy,workbuf_len |
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xor a |
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ld (iy),a |
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ident_loop: |
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call get_data_dbg |
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jr c,ident_done |
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ld (ix),a |
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inc ix |
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inc (iy) |
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jr ident_loop |
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ident_done: |
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call crlf |
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ld de,str_kbd_ident_disp |
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call prtstr |
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ld a,'[' |
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call prtchr |
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ld ix,workbuf |
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ld b,(iy) |
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xor a |
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cp b |
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jr z,ident_done2 |
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ident_done1: |
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ld a,(ix) |
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call prthex |
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inc ix |
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djnz ident_done1 |
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ident_done2: |
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ld a,']' |
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call prtchr |
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; |
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; Get active scan code set being used |
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; |
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call crlf2 |
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ld de,str_kbd_getsc |
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call prtstr |
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ld a,$f0 ; Keyboard get/set scan code |
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call put_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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cp $FA ; Is it an ack as expected? |
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jp nz,err_kbd_getsc |
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ld a,$00 ; Get active scan code set |
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call put_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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cp $FA ; Is it an ack as expected? |
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jp nz,err_kbd_getsc |
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call get_data_dbg |
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jp c,err_ctlr_io ; handle controller error |
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push af |
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call crlf |
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ld de,str_kbd_dispsc |
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call prtstr |
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pop af |
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call prtdecb |
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;;;; |
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;;;; Set active scan code set to 2 |
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;;;; |
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;;; call crlf2 |
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;;; ld de,str_kbd_setsc |
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;;; call prtstr |
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;;; ld a,$f0 ; Keyboard get/set scan code |
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;;; call put_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; call get_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; cp $FA ; Is it an ack as expected? |
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;;; jp nz,err_kbd_getsc |
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;;; ld a,$02 ; Set scan code set to 2 |
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;;; call put_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; call get_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; cp $FA ; Is it an ack as expected? |
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;;; jp nz,err_kbd_getsc |
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;;;; |
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;;;; Get active scan code set being used |
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;;;; |
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;;; call crlf2 |
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;;; ld de,str_kbd_getsc |
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;;; call prtstr |
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;;; ld a,$f0 ; Keyboard get/set scan code |
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;;; call put_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; call get_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; cp $FA ; Is it an ack as expected? |
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;;; jp nz,err_kbd_getsc |
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;;; ld a,$00 ; Get active scan code set |
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;;; call put_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; call get_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; cp $FA ; Is it an ack as expected? |
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;;; jp nz,err_kbd_getsc |
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;;; call get_data_dbg |
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;;; jp c,err_ctlr_io ; handle controller error |
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;;; push af |
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;;; call crlf |
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;;; ld de,str_kbd_dispsc |
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;;; call prtstr |
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;;; pop af |
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;;; and $0f |
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;;; call prtdecb |
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; |
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; Read and display raw scan codes |
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; |
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call crlf2 |
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ld de,str_disp_scan_codes |
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call prtstr |
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read_loop: |
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ld c,$06 ; BDOS direct console I/O |
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ld e,$FF ; Subfunction = read |
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call bdos |
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cp $1B ; Escape key? |
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jp z,done |
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call check_read |
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jr nz,read_loop |
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call get_data |
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jp c,err_ctlr_io ; handle controller error |
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push af |
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ld a,' ' |
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call prtchr |
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ld a,'[' |
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call prtchr |
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pop af |
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call prthex |
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ld a,']' |
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call prtchr |
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jr read_loop |
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|
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done: |
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ret |
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; |
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;======================================================================= |
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; Keyboard Controller I/O Routines |
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;======================================================================= |
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; |
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wait_write: |
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; |
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; Wait for keyboard controller to be ready for a write |
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; A=0 indicates success (ZF set) |
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; |
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ld b,timeout ; setup timeout constant |
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wait_write1: |
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in a,(iocmd) ; get status |
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ld c,a ; save status |
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and $02 ; isolate input buf status bit |
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ret z ; 0 means ready, all done |
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call delay ; wait a bit |
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djnz wait_write1 ; loop until counter exhausted |
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ld de,str_timeout_write ; write timeout message |
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call crlf |
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call prtstr |
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ld a,c ; recover last status value |
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call prthex |
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or $ff ; signal error |
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ret |
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; |
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wait_read: |
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; |
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; Wait for keyboard controller to be ready to read a byte |
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; A=0 indicates success (ZF set) |
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; |
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ld b,timeout ; setup timeout constant |
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wait_read1: |
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in a,(iocmd) ; get status |
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ld c,a ; save status |
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and $01 ; isolate input buf status bit |
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xor $01 ; invert so 0 means ready |
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ret z ; if 0, all done |
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call delay ; wait a bit |
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djnz wait_read1 ; loop until counter exhausted |
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ld de,str_timeout_read ; write timeout message |
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call crlf |
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call prtstr |
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ld a,c ; recover last status value |
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call prthex |
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or $ff ; signal error |
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ret |
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; |
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check_read: |
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; |
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; Check for data ready to read |
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; A=0 indicates data available (ZF set) |
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; |
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in a,(iocmd) ; get status |
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and $01 ; isolate input buf status bit |
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xor $01 ; invert so 0 means ready |
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ret |
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; |
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put_cmd: |
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; |
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; Put a cmd byte from A to the keyboard interface with timeout |
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; CF set indicates timeout error |
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; |
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ld e,a ; save incoming value |
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call wait_write ; wait for controller ready |
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jr z,put_cmd1 ; if ready, move on |
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scf ; else, signal timeout error |
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ret ; and bail out |
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put_cmd1: |
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ld a,e ; recover value to write |
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out (iocmd),a ; write it |
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or a ; clear CF for success |
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ret |
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; |
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put_cmd_dbg: |
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call put_cmd |
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ret c |
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push af |
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call crlf |
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ld de,str_put_cmd |
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call prtstr |
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call prthex |
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pop af |
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ret |
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; |
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put_data: |
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; |
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; Put a data byte from A to the keyboard interface with timeout |
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; CF set indicates timeout error |
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; |
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ld e,a ; save incoming value |
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call wait_write ; wait for controller ready |
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jr z,put_data1 ; if ready, move on |
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scf ; else, signal timeout error |
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ret ; and bail out |
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put_data1: |
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ld a,e ; recover value to write |
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out (iodat),a ; write it |
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or a ; clear CF for success |
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ret |
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; |
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put_data_dbg: |
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call put_data |
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ret c |
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push af |
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call crlf |
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ld de,str_put_data |
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call prtstr |
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call prthex |
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pop af |
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ret |
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|
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; |
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; Get a data byte from the keyboard interface to A with timeout |
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; CF set indicates timeout error |
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; |
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get_data: |
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call wait_read ; wait for byte to be ready |
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jr z,get_data1 ; if readym, move on |
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scf ; else signal timeout error |
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ret ; and bail out |
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get_data1: |
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in a,(iodat) ; get data byte |
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or a ; clear CF for success |
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ret |
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; |
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get_data_dbg: |
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call get_data |
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ret c |
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push af |
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call crlf |
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ld de,str_get_data |
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call prtstr |
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call prthex |
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pop af |
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ret |
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; |
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; Error Handlers |
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; |
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err_ctlr_io: |
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ld de,str_err_ctrl_io |
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jr err_ret |
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; |
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err_ctlr_test: |
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ld de,str_err_ctrl_test |
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jr err_ret |
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; |
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err_kbd_reset: |
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ld de,str_err_kbd_reset |
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jr err_ret |
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; |
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err_kbd_getsc: |
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ld de,str_err_kbd_getsc |
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jr err_ret |
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; |
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err_kbd_setsc: |
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ld de,str_err_kbd_setsc |
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jr err_ret |
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; |
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err_kbd_ident: |
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ld de,str_err_kbd_ident |
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jr err_ret |
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; |
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err_ret: |
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call crlf2 |
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call prtstr |
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or $ff ; signal error |
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ret |
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; |
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;======================================================================= |
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; Utility Routines |
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;======================================================================= |
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; |
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; |
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; Print character in A without destroying any registers |
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; |
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prtchr: |
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push bc ; save registers |
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push de |
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push hl |
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ld e,a ; character to print in E |
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ld c,$02 ; BDOS function to output a character |
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call bdos ; do it |
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pop hl ; restore registers |
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pop de |
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pop bc |
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ret |
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; |
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prtdot: |
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; |
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; shortcut to print a dot preserving all regs |
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push af ; save af |
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ld a,'.' ; load dot char |
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call prtchr ; print it |
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pop af ; restore af |
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ret ; done |
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; |
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; Print a zero terminated string at (de) without destroying any registers |
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; |
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prtstr: |
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push af |
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push de |
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; |
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prtstr1: |
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ld a,(de) ; get next char |
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or a |
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jr z,prtstr2 |
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call prtchr |
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inc de |
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jr prtstr1 |
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; |
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prtstr2: |
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pop de ; restore registers |
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pop af |
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ret |
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; |
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; Print the value in A in hex without destroying any registers |
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; |
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prthex: |
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push af ; save AF |
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push de ; save DE |
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call hexascii ; convert value in A to hex chars in DE |
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ld a,d ; get the high order hex char |
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call prtchr ; print it |
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ld a,e ; get the low order hex char |
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call prtchr ; print it |
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pop de ; restore DE |
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pop af ; restore AF |
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ret ; done |
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; |
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; print the hex word value in hl |
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; |
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prthexword: |
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push af |
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ld a,h |
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call prthex |
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ld a,l |
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call prthex |
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pop af |
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ret |
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; |
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; print the hex dword value in de:hl |
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; |
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prthex32: |
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push bc |
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push de |
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pop bc |
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call prthexword |
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push hl |
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pop bc |
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call prthexword |
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pop bc |
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ret |
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; |
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; Convert binary value in A to ascii hex characters in DE |
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; |
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hexascii: |
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ld d,a ; save A in D |
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call hexconv ; convert low nibble of A to hex |
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ld e,a ; save it in E |
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ld a,d ; get original value back |
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rlca ; rotate high order nibble to low bits |
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rlca |
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rlca |
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rlca |
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call hexconv ; convert nibble |
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ld d,a ; save it in D |
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ret ; done |
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; |
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; Convert low nibble of A to ascii hex |
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; |
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hexconv: |
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and $0F ; low nibble only |
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add a,$90 |
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daa |
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adc a,$40 |
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daa |
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ret |
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; |
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; Print value of A or HL in decimal with leading zero suppression |
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; Use prtdecb for A or prtdecw for HL |
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; |
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prtdecb: |
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push hl |
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ld h,0 |
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ld l,a |
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call prtdecw ; print it |
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pop hl |
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ret |
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; |
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prtdecw: |
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push af |
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push bc |
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push de |
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push hl |
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call prtdec0 |
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pop hl |
|||
pop de |
|||
pop bc |
|||
pop af |
|||
ret |
|||
; |
|||
prtdec0: |
|||
ld e,'0' |
|||
ld bc,-10000 |
|||
call prtdec1 |
|||
ld bc,-1000 |
|||
call prtdec1 |
|||
ld bc,-100 |
|||
call prtdec1 |
|||
ld c,-10 |
|||
call prtdec1 |
|||
ld e,0 |
|||
ld c,-1 |
|||
prtdec1: |
|||
ld a,'0' - 1 |
|||
prtdec2: |
|||
inc a |
|||
add hl,bc |
|||
jr c,prtdec2 |
|||
sbc hl,bc |
|||
cp e |
|||
ret z |
|||
ld e,0 |
|||
call prtchr |
|||
ret |
|||
; |
|||
; Start a new line |
|||
; |
|||
crlf2: |
|||
call crlf ; two of them |
|||
crlf: |
|||
push af ; preserve AF |
|||
ld a,13 ; <CR> |
|||
call prtchr ; print it |
|||
ld a,10 ; <LF> |
|||
call prtchr ; print it |
|||
pop af ; restore AF |
|||
ret |
|||
; |
|||
; Brief delay |
|||
; |
|||
delay: |
|||
push bc |
|||
ld b,0 |
|||
delay1: |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
ex (sp),hl |
|||
djnz delay1 |
|||
pop bc |
|||
ret |
|||
; |
|||
;======================================================================= |
|||
; Constants |
|||
;======================================================================= |
|||
; |
|||
str_banner .db "Keyboard Information, v0.1",0 |
|||
str_exit .db "Done, Thank you for using KBDINFO!",0 |
|||
str_cmdport .db "Keyboard Controller Command Port: 0x",0 |
|||
str_dataport .db "Keyboard Controller Data Port: 0x",0 |
|||
str_timeout_write .db "Keyboard Controller Write Timeout, Status: 0x",0 |
|||
str_timeout_read .db "Keyboard Controller Read Timeout, Status: 0x",0 |
|||
str_err_ctrl_io .db "Keyboard Controller I/O Failure",0 |
|||
str_err_ctrl_test .db "Keyboard Controller Self-Test Failed",0 |
|||
str_put_cmd .db "Sent Command 0x",0 |
|||
str_put_data .db "Sent Data 0x",0 |
|||
str_get_data .db "Got Data 0x",0 |
|||
str_ctrl_test .db "Attempting Controller Self-Test",0 |
|||
str_ctrl_test_ok .db "Controller Self-Test OK",0 |
|||
str_trans_off .db "Disabling Controller Translation",0 |
|||
str_trans_on .db "Enabling Controller Translation",0 |
|||
str_kbd_reset .db "Attempting Keyboard Reset",0 |
|||
str_kbd_reset_ok .db "Keyboard Reset OK",0 |
|||
str_err_kbd_reset .db "Keyboard Reset Failed",0 |
|||
|
|||
str_kbd_getsc .db "Requesting Active Scan Code Set from Keyboard",0 |
|||
str_kbd_dispsc .db "Active Keyboard Scan Code Set is ",0 |
|||
str_err_kbd_getsc .db "Error getting active keyboard scan code set",0 |
|||
str_kbd_setsc .db "Setting Active Keyboard Scan Code Set",0 |
|||
str_err_kbd_setsc .db "Error setting keyboard scan code set",0 |
|||
str_kbd_ident .db "Keyboard Identification",0 |
|||
str_kbd_ident_disp .db "Keyboard Identify: ",0 |
|||
str_err_kbd_ident .db "Error performing Keyboard Identification",0 |
|||
str_disp_scan_codes .db "Displaying Raw Scan Codes",13,10 |
|||
.db " Press keys on keyboard to display scan codes",13,10 |
|||
.db " Press <esc> on CP/M console to end",13,10,13,10,0 |
|||
; |
|||
;======================================================================= |
|||
; Working data |
|||
;======================================================================= |
|||
; |
|||
stksav .dw 0 ; stack pointer saved at start |
|||
.fill stksiz,0 ; stack |
|||
stack .equ $ ; stack top |
|||
; |
|||
workbuf .fill 8 |
|||
workbuf_len .db 0 |
|||
; |
|||
;======================================================================= |
|||
; |
|||
.end |
|||
Loading…
Reference in new issue