mangavalk/lcdproc
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Added ExtendedMode functionality. Solves 'A-type' or KS0073 issue.

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This commit is contained in:
robijn
2004-02-09 22:21:49 +00:00
parent 80aa4d3d1e
commit 6161531e3c
8 changed files with 85 additions and 70 deletions
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server/drivers/hd44780.c
+25 -12
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@@ -148,7 +148,7 @@ HD44780_init (Driver * drvthis, char *args)
//// READ THE CONFIG FILE
p->port = drvthis->config_get_int( drvthis->name, "port", 0, LPTPORT );
p->extIF = drvthis->config_get_bool( drvthis->name, "extended", 0, 0 );
p->ext_mode = drvthis->config_get_bool( drvthis->name, "extendedmode", 0, 0 );
p->have_keypad = drvthis->config_get_bool( drvthis->name, "keypad", 0, 0 );
p->have_backlight = drvthis->config_get_bool( drvthis->name, "backlight", 0, 0 );
p->have_output = drvthis->config_get_bool( drvthis->name, "outputport", 0, 0 );
@@ -321,8 +321,17 @@ HD44780_init (Driver * drvthis, char *args)
// the connectiontype should do this.
//
void
common_init (PrivateData *p)
common_init (PrivateData *p, unsigned char if_bit)
{
if (p->ext_mode) {
// Set up extended mode */
p->hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | if_bit | TWOLINE | SMALLCHAR | EXTREG );
p->hd44780_functions->uPause (p, 40);
p->hd44780_functions->senddata (p, 0, RS_INSTR, EXTMODESET | FOURLINE );
p->hd44780_functions->uPause (p, 40);
}
p->hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | if_bit | TWOLINE | SMALLCHAR );
p->hd44780_functions->uPause (p, 40);
p->hd44780_functions->senddata (p, 0, RS_INSTR, ONOFFCTRL | DISPON | CURSOROFF | CURSORNOBLINK);
p->hd44780_functions->uPause (p, 40);
p->hd44780_functions->senddata (p, 0, RS_INSTR, CLEAR);
@@ -386,18 +395,22 @@ HD44780_position (Driver *drvthis, int x, int y)
int relY = y - p->dispVOffset[dispID - 1];
int DDaddr;
// 16x1 is a special case
if (p->dispSizes[dispID - 1] == 1 && p->width == 16) {
if (x >= 8) {
x -= 8;
relY = 1;
if (p->ext_mode) {
// Linear addressing, each line starts 0x20 higher.
DDaddr = x + relY * 0x20;
} else {
// 16x1 is a special case
if (p->dispSizes[dispID - 1] == 1 && p->width == 16) {
if (x >= 8) {
x -= 8;
relY = 1;
}
}
DDaddr = x + (relY % 2) * 0x40;
if ((relY % 4) >= 2)
DDaddr += p->width;
}
DDaddr = x + (relY % 2) * 0x40;
if ((relY % 4) >= 2)
DDaddr += p->width;
p->hd44780_functions->senddata (p, dispID, RS_INSTR, POSITION | DDaddr);
p->hd44780_functions->uPause (p, 40); // Minimum exec time for all commands
}