mangavalk/lcdproc
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Add an option to specify the DDRAM address of the next line.

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This allows using the ST7036 controller like found on EA DOG modules.
This commit is contained in:
mmdolze
2009-03-03 20:17:28 +00:00
parent 82c69e7a6e
commit d62a27fac1
7 changed files with 33 additions and 3 deletions
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server/drivers/hd44780.c
+5 -1
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@@ -60,6 +60,9 @@
// Default parallel port address
#define LPTPORT 0x378
// Default Lineaddress in ext_mode
#define LADDR 0x20
// Autorepeat values
#define KEYPAD_AUTOREPEAT_DELAY 500
#define KEYPAD_AUTOREPEAT_FREQ 15
@@ -165,6 +168,7 @@ HD44780_init(Driver *drvthis)
p->port = drvthis->config_get_int(drvthis->name, "port", 0, LPTPORT);
p->ext_mode = drvthis->config_get_bool(drvthis->name, "extendedmode", 0, 0);
p->line_address = drvthis->config_get_int(drvthis->name, "lineaddress", 0, LADDR);
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);
@@ -605,7 +609,7 @@ HD44780_position(Driver *drvthis, int x, int y)
if (p->ext_mode) {
// Linear addressing, each line starts 0x20 higher.
DDaddr = x + relY * 0x20;
DDaddr = x + relY * p->line_address;
} else {
// 16x1 is a special case
if (p->dispSizes[dispID - 1] == 1 && p->width == 16) {