mangavalk/lcdproc
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new options for hd44780 (Frank Jepsen)

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This commit is contained in:
marschap
2007-02-04 12:26:54 +00:00
parent e83ebd272f
commit 88acd72197
6 changed files with 72 additions and 2 deletions
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server/drivers/hd44780-low.h
+6
View File
@@ -117,6 +117,12 @@ typedef struct driver_private_data {
int backlight_bit;
// force full refresh of display
time_t nextrefresh;
int refreshdisplay; // When >0 make a full display update every <refreshdisplay> seconds
time_t nextkeepalive;
int keepalivedisplay; // When >0 refresh upper left char every <keepalivedisplay> seconds to keep display alive
int output_state; // what was most recently output to the output port
} PrivateData;
server/drivers/hd44780.c
+22 -1
View File
@@ -161,6 +161,11 @@ HD44780_init (Driver * drvthis)
p->delayBus = drvthis->config_get_bool( drvthis->name, "delaybus", 0, 1 );
p->lastline = drvthis->config_get_bool( drvthis->name, "lastline", 0, 1 );
p->nextrefresh = 0;
p->refreshdisplay = drvthis->config_get_int( drvthis->name, "refreshdisplay", 0, 0 );
p->nextkeepalive = 0;
p->keepalivedisplay = drvthis->config_get_int( drvthis->name, "keepalivedisplay", 0, 0 );
// Get and search for the connection type
s = drvthis->config_get_string( drvthis->name, "ConnectionType", 0, "4bit" );
for (i = 0; connectionMapping[i].name != NULL && strcmp (s, connectionMapping[i].name) != 0; i++);
@@ -511,6 +516,22 @@ HD44780_flush (Driver *drvthis)
int row;
int i;
int count;
char refreshNow = 0;
char keepaliveNow = 0;
// force full refresh of display
if ((p->refreshdisplay > 0) && (time(NULL) > p->nextrefresh))
{
refreshNow = 1;
p->nextrefresh = time(NULL) + p->refreshdisplay;
}
// keepalive refresh of display
if ((p->keepalivedisplay > 0) && (time(NULL) > p->nextkeepalive))
{
keepaliveNow = 1;
p->nextkeepalive = time(NULL) + p->keepalivedisplay;
}
// Update LCD incrementally by comparing with last contents
count = 0;
@@ -518,7 +539,7 @@ HD44780_flush (Driver *drvthis)
drawing = 0;
for (x = 0 ; x < wid; x++) {
ch = p->framebuf[(y * wid) + x];
if ( ch != p->lcd_contents[(y*wid)+x] ) {
if ( refreshNow || (x + y == 0 && keepaliveNow) || ch != p->lcd_contents[(y*wid)+x] ) {
if ( !drawing || x % 8 == 0 ) { // x%8 is for 16x1 displays !
drawing = 1;
HD44780_position(drvthis,x,y);