* I2C Support added

[avrcpm.git] / cpm / CFGACPM.LIB

;    Configuration and common defs for avrcpm BIOS and IPL\r
\r
;    Copyright (C) 2010 Leo C.\r
;\r
;    This program is free software: you can redistribute it and/or modify\r
;    it under the terms of the GNU General Public License as published by\r
;    the Free Software Foundation, either version 3 of the License, or\r
;    (at your option) any later version.\r
;\r
;    This program is distributed in the hope that it will be useful,\r
;    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
;    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
;    GNU General Public License for more details.\r
;\r
;    You should have received a copy of the GNU General Public License\r
;    along with this program.  If not, see <http://www.gnu.org/licenses/>.\r
;\r
;    $Id:$\r
;\r
\r
msize 	equ	62	;size of available RAM in k\r
\r
bias 	equ	(msize-20) * 1024 \r
ccp 	equ	3400h+bias	;base of cpm ccp\r
bdos 	equ	ccp+806h	;base of bdos\r
bios 	equ	ccp+1600h	;base of bios\r
cdisk 	equ	0004h		;current disk number (0 ... 15)\r
iobyte 	equ	0003h		;intel iobyte\r
buff 	equ	0080h		;default buffer address\r
retry 	equ	3		;max retries on disk i/o before error\r
\r
\r
;copy from avr/virt_ports.asm:\r
;   Port        Direction  Function\r
;hex	dez\r
;-------------------------------------------------------------------------\r
;00  	0 	in	- Con status. \r
;			  Returns 0xFF if the UART has a byte, 0 otherwise.\r
;01  	1 	in/out	- Console input, aka UDR. / Console Output\r
;02  	2 	out	- Console Output (deprecated)\r
;03  	3	in	- "UART" status: bit 0 = rx, bit 1 = tx\r
;04  	4	in	- "UART" data register, no wait\r
;\r
;------------------------ Virtual I2C interface --------------------------\r
;05	5	out	- Control Port: 1 = Start read operation\r
;					2 = Start write operation \r
;05	5	in	- Status of last Transfer: 0 = ok, else fail\r
;06	6	in/out	- Number of bytes to transfer, including Slave address\r
;07,08	7,8	in/out	- Read/Write address low/high\r
;\r
;------------------------ Disk I/O ---------------------------------------\r
;0D,0E	13,14	in/out	- Set address of Bios Controll Block\r
;0F  	15	in/out	- Disk select\r
;10,11  16,17 	in/out	- Track select\r
;12,13 	18,19 	in/out	- Sector select\r
;14,15 	20,21 	in/out	- Write addr\r
;   	 	\r
;16  	22 	out	- Trigger disk i/o operations\r
;			  Bit 7 = 1: Read sector\r
;			  Bit 6 = 1: Write sector\r
;			  Bit 5 = 1: BIOS WBOOT\r
;			  Bit 4 = 1: BIOS Home\r
;			  Only one of bits 4..7  may be set.\r
;			  If Write function (bit 6=1):\r
;			   Bits 0..2: 0 - write to allocated\r
;				      1 - write to directory\r
;				      2 - write unallocated\r
;				      3 - write to directory			 \r
;\r
;16  	22	in	- Result of last read/write operation.\r
;			  0x00 = ok, 0xff = error (--> Bad Sector)\r
;\r
;\r
;\r
;------------------------ Wall Clock and Timers --------------------------\r
;40  	64-71	in/out	- Timer/Clock control.	\r
;41-46\r
;\r
;47-4D		clock	- BCD format: ss, mm, hh,  DD, MM, YYl, YYh\r
;\r
;------------------------ Ports ------------------------------------------\r
;80-87		in/out	- Port-Expander PCF8574 (max. 8 Chips)\r
;88-8F		in/out	- Port-Expander PCF8574A (not implemented yet!)\r
\r
\r
READ_FUNC   equ	7\r
WRITE_FUNC  equ	6\r
BOOT_FUNC   equ 5\r
HOME_FUNC   equ 4\r
\r
TIMERCTL	equ	040h\r
TIMER_MSECS	equ	TIMERCTL+1\r
TIMER_SECS	equ	TIMER_MSECS+2\r
starttimercmd	equ	1\r
quitTimerCmd	equ	2\r
printTimerCmd	equ	15\r
uptimeCmd	equ	16\r
\r
CLOCKPORT	equ	TIMERCTL+7\r
\r
DEBUGPORT	equ	04FH\r
StartTraceCmd	equ	1\r
StopTraceCmd	equ	0\r
\r
\r
\r
\r
\r