mangavalk/lcdproc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added HD44780 delay options.

Browse Source
This commit is contained in:
robijn
2001-11-01 15:38:49 +00:00
parent 12016257ff
commit 46174150ce
6 changed files with 63 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files
server/drivers/hd44780-4bit.c
+16 -10
View File
@@ -118,10 +118,12 @@ hd_init_4bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver
port_out (lptPort + 2, 0 ^ OUTMASK);
}
port_out (lptPort, 0x03);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, enableLines | 0x03);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
hd44780_functions->uPause (1);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x03);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
@@ -130,7 +132,7 @@ hd_init_4bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver
port_out (lptPort, enableLines | 0x03);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
hd44780_functions->uPause (1);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x03);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
@@ -139,7 +141,7 @@ hd_init_4bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver
port_out (lptPort, enableLines | 0x03);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
hd44780_functions->uPause (1);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x03);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
@@ -149,7 +151,7 @@ hd_init_4bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver
port_out (lptPort, enableLines | 0x02);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
hd44780_functions->uPause (1);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x02);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
@@ -187,13 +189,15 @@ lcdstat_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned
enableLines = EnMask[displayID - 1];
port_out (lptPort, portControl | h);
hd44780_functions->uPause (2);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, enableLines | portControl | h);
hd44780_functions->uPause (4);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, portControl | h);
port_out (lptPort, portControl | l);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, enableLines | portControl | l);
hd44780_functions->uPause (4);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, portControl | l);
}
@@ -204,14 +208,15 @@ lcdstat_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned
enableLines = EnMask[(displayID - 1)];
port_out (lptPort, portControl | h);
hd44780_functions->uPause (2);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, enableLines ^ OUTMASK);
hd44780_functions->uPause (4);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, 0 ^ OUTMASK);
port_out (lptPort, portControl | l);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, enableLines ^ OUTMASK);
hd44780_functions->uPause (4);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, 0 ^ OUTMASK);
}
}
@@ -233,6 +238,7 @@ unsigned char lcdstat_HD44780_readkeypad (unsigned int YData)
if (!extIF) {
port_out (lptPort + 2, ( ((~YData & 0x03C0) << 6 )) ^ OUTMASK);
}
if( delayBus ) hd44780_functions->uPause (1);
// Read inputs
readval = ~ port_in (lptPort + 1) ^ INMASK;