X-Git-Url: http://cloudbase.mooo.com/gitweb/avrcpm.git/blobdiff_plain/fb05009566d5acd9cdc22e02d2035ae848cc777c..de15c768141e7d7c3f34e6a4260d1c7a55cece4f:/avr/virt_ports.asm

diff --git a/avr/virt_ports.asm b/avr/virt_ports.asm
index 94327aa..b03a268 100644
--- a/avr/virt_ports.asm
+++ b/avr/virt_ports.asm
@@ -32,6 +32,14 @@
 ;03  	3	in	- "UART" status: bit 0 = rx, bit 1 = tx
 ;04  	4	in	- "UART" data register, no wait
 ;
+;------------------------ Virtual I2C interface --------------------------
+;05	5	out	- Control Port: 1 = Start read operation
+;					2 = Start write operation 
+;05	5	in	- Status of last Transfer: 0 = ok, else fail
+;06	6	in/out	- Number of bytes to transfer, including Slave address
+;07,08	7,8	in/out	- Read/Write address low/high
+;
+;------------------------ Disk I/O ---------------------------------------
 ;0D,0E	13,14	in/out	- Set address of Bios Controll Block
 ;0F  	15	in/out	- Disk select
 ;10,11  16,17 	in/out	- Track select
@@ -53,10 +61,17 @@
 ;16  	22	in	- Result of last read/write operation.
 ;			  0x00 = ok, 0xff = error (--> Bad Sector)
 ;
+;
+;
+;------------------------ Wall Clock and Timers --------------------------
 ;40  	64-71	in/out	- Timer/Clock control.	
 ;41-46
 ;
-;47-4C		clock	- Binary format: y, m, d, h, m, s
+;47-4D		clock	- BCD format: ss, mm, hh,  DD, MM, YYl, YYh
+;
+;------------------------ Ports ------------------------------------------
+;80-87		in/out	- Port-Expander PCF8574 (max. 8 Chips)
+;88-8F		in/out	- Port-Expander PCF8574A (not implemented yet!)
 
 
 ; ---------------------------------------------- Start of Code Segment
@@ -89,13 +104,28 @@ vport_tbl:
 	.dw	utimeget
 	.dw	utimeput
 
-	.db	CLOCKPORT,6	;Clock format (bin): y, m, d, h, m, s
+	.db	CLOCKPORT,7	;Clock format (bcd): ss, mm, hh,  DD, MM, YYl, YYh
 	.dw	clockget
 	.dw	clockput
 
 	.db	DEBUGPORT,1
 	.dw	dbg_stat
 	.dw	dbg_ctrl
+
+#if I2C
+	.db	I2CCTRL,1
+	.dw	vi2c_stat_get
+	.dw	vi2c_ctrl
+
+	.db	I2CBLEN,3	;
+	.dw	vi2c_param_get
+	.dw	vi2c_param_set
+
+	.db	PORT,8
+	.dw	pcf8574_in
+	.dw	pcf8574_out
+#endif
+
 	.db	0,0		; Stop mark
 
 ;---------------------------------------------------------------------
@@ -147,8 +177,8 @@ vprw_next:			;port # not in range, test next block.
 	adiw	z,4
 	rjmp	vprw_loop
 vprw_found:
-	brtc	PC+2
-	adiw	z,2
+	brtc	PC+2		;read or write?
+	adiw	z,2		;skip read function pointer
 	lpm	_tmp0,z+
 	lpm	_tmp1,z+
 	movw	z,_tmp0