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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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LCDd.conf
+4 -3
View File
@@ -290,9 +290,10 @@ Size=20x4
# For multiple displays: at what 'logical' lines do the individual displays
# start.
#extended=yes
# If you want to use more than 3 HD44780 controllers on the LPT, you need to
# specify this. See documentation.
#ExtendedMode=yes
# If you have a KS0073 or an other 'almost HD44780-compatible', set this
# flag to get into extended mode (4-line linear).
# This flag is NOT the old obsolete Extended option.
#DelayMult=2
# If your display is slow and cannot keep up with the flow of data from
server/drivers/hd44780-4bit.c
+23 -35
View File
@@ -99,7 +99,7 @@ hd_init_4bit (Driver *drvthis)
PrivateData *p = (PrivateData*) drvthis->private_data;
HD44780_functions *hd44780_functions = p->hd44780_functions;
int enableLines = EN1 | EN2;
int enableLines = EN1 | EN2 | EN3;
// Reserve the port registers
port_access_multiple(p->port,3);
@@ -109,47 +109,38 @@ hd_init_4bit (Driver *drvthis)
hd44780_functions->readkeypad = lcdstat_HD44780_readkeypad;
// powerup the lcd now
if (p->extIF) {
enableLines |= EN3;
port_out (p->port + 2, 0 ^ OUTMASK);
}
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (p->port, 0x03);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
/* We'll now send 0x03 a coulpe of times,
* which is in fact (FUNCSET | IF_8BIT) >> 4 */
port_out (p->port, enableLines | 0x03);
if (p->extIF)
port_out (p->port + 2, ALLEXT ^ OUTMASK);
port_out (p->port + 2, ALLEXT ^ OUTMASK);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (p->port, 0x03);
if (p->extIF)
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (p->port + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (p, 15000);
port_out (p->port, enableLines | 0x03);
if (p->extIF)
port_out (p->port + 2, ALLEXT ^ OUTMASK);
port_out (p->port + 2, ALLEXT ^ OUTMASK);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (p->port, 0x03);
if (p->extIF)
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (p->port + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (p, 5000);
port_out (p->port, enableLines | 0x03);
if (p->extIF)
port_out (p->port + 2, ALLEXT ^ OUTMASK);
port_out (p->port + 2, ALLEXT ^ OUTMASK);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (p->port, 0x03);
if (p->extIF)
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (p->port + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (p, 100);
port_out (p->port, enableLines | 0x03);
if (p->extIF)
port_out (p->port + 2, ALLEXT ^ OUTMASK);
port_out (p->port + 2, ALLEXT ^ OUTMASK);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (p->port, 0x03);
if (p->extIF)
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (p->port + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (p, 100);
// now in 8-bit mode... set 4-bit mode
@@ -157,19 +148,17 @@ hd_init_4bit (Driver *drvthis)
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (p->port, enableLines | 0x02);
if (p->extIF)
port_out (p->port + 2, ALLEXT ^ OUTMASK);
port_out (p->port + 2, ALLEXT ^ OUTMASK);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (p->port, 0x02);
if (p->extIF)
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (p->port + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (p, 100);
// Set up two-line, small character (5x8) mode
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | TWOLINE | SMALLCHAR );
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_4BIT | TWOLINE | SMALLCHAR );
hd44780_functions->uPause (p, 40);
common_init (p);
common_init (p, IF_4BIT);
if (p->have_keypad) {
// Remember which input lines are stuck
@@ -196,10 +185,7 @@ lcdstat_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char
if (displayID <= 3) {
if (displayID == 0) {
enableLines = EnMask[0] | EnMask[1];
if (p->extIF) {
enableLines |= EnMask[2];
}
enableLines = EnMask[0] | EnMask[1] | EnMask[2];
} else {
enableLines = EnMask[displayID - 1];
}
@@ -217,11 +203,12 @@ lcdstat_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char
port_out (p->port, portControl | l);
}
if (p->extIF && (displayID == 0 || displayID >= 4)) {
if (displayID == 0)
if (p->numDisplays > 3) {
if (displayID == 0) {
enableLines = ALLEXT;
else
} else {
enableLines = EnMask[(displayID - 1)];
}
port_out (p->port, portControl | h);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
@@ -251,7 +238,8 @@ unsigned char lcdstat_HD44780_readkeypad (PrivateData *p, unsigned int YData)
// 10 bits output or 6 bits if >=3 displays
// Convert the positive logic to the negative logic on the LPT port
port_out (p->port, ~YData & 0x003F );
if (!p->extIF) {
if (p->numDisplays<=3) {
// Can't combine >3 displays with >6 keypad output lines
port_out (p->port + 2, ( ((~YData & 0x03C0) << 6 )) ^ OUTMASK);
}
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
server/drivers/hd44780-ext8bit.c
+4 -3
View File
@@ -104,7 +104,7 @@ hd_init_ext8bit (Driver *drvthis)
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT | TWOLINE | SMALLCHAR);
hd44780_functions->uPause (p, 40);
common_init (p);
common_init (p, IF_8BIT);
if (p->have_keypad) {
// Remember which input lines are stuck
@@ -156,10 +156,11 @@ unsigned char lcdtime_HD44780_readkeypad (PrivateData *p, unsigned int YData)
sem_wait (semid);
// 10 bits output or 8 bits if >=3 displays
// 10 bits output or 8 bits if >=2 displays
// Convert the positive logic to the negative logic on the LPT port
port_out (p->port, ~YData & 0x00FF );
if (!p->extIF) {
if (p->numDisplays<=2) {
// Can't combine >3 displays with >8 keypad output lines
port_out (p->port + 2, ( ((~YData & 0x0100) >> 8) | ((~YData & 0x0200) >> 6)) ^ OUTMASK);
}
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
server/drivers/hd44780-low.h
+25 -11
View File
@@ -78,10 +78,10 @@ typedef struct driver_private_data {
int *dispSizes;
// Keypad, backlight extended interface and delay options
char have_keypad; // off by default
char have_backlight; // off by default
char extIF; // off by default
char have_output; // have extra output port (off by default)
char have_keypad; // off by default
char have_backlight; // off by default
char have_output; // have extra output port (off by default)
char ext_mode; // use of extended mode required for some weird controllers
int delayMult; // Delay multiplier for slow displays
char delayBus; // Delay if the computer can send data too fast over
// its bus to LPT port
@@ -141,7 +141,7 @@ typedef struct hwDependentFns {
} HD44780_functions; /* for want of a better name :-) */
void common_init (PrivateData *p);
void common_init (PrivateData *p, unsigned char if_bit);
// commands for senddata
@@ -158,7 +158,7 @@ void common_init (PrivateData *p);
#define EDGESCROLL 0x01
#define NOSCROLL 0x00
#define ONOFFCTRL 0x08
#define ONOFFCTRL 0x08 /* Only reachable with EXTREG clear */
#define DISPON 0x04
#define DISPOFF 0x00
#define CURSORON 0x02
@@ -166,22 +166,36 @@ void common_init (PrivateData *p);
#define CURSORBLINK 0x01
#define CURSORNOBLINK 0x00
#define CURSORSHIFT 0x10
#define EXTMODESET 0x08 /* Only reachable with EXTREG set */
#define FONT6WIDE 0x04
#define INVCURSOR 0x02
#define FOURLINE 0x01
#define CURSORSHIFT 0x10 /* Only reachable with EXTREG clear */
#define SCROLLDISP 0x08
#define MOVECURSOR 0x00
#define MOVERIGHT 0x04
#define MOVELEFT 0x00
#define HSCROLLEN 0x10 /* Only reachable with EXTREG set */
#define FUNCSET 0x20
#define IF_8BIT 0x10
#define IF_4BIT 0x00
#define TWOLINE 0x08
#define ONELINE 0x00
#define LARGECHAR 0x04 /* 5x11 characters */
#define SMALLCHAR 0x00 /* 5x8 characters */
#define LARGECHAR 0x04 /* 5x11 characters */
#define SMALLCHAR 0x00 /* 5x8 characters */
#define EXTREG 0x04 /* Select ext. registers (Yes, the same bits)*/
#define SEGBLINK 0x02 /* Only reachable with EXTREG set */
#define POWERDOWN 0x01 /* Only reachable with EXTREG set */
#define SETCHAR 0x40
#define SETCHAR 0x40 /* Only reachable with EXTREG clear */
#define POSITION 0x80
#define SETSEG 0x40 /* Only reachable with EXTREG set */
#define POSITION 0x80 /* Only reachable with EXTREG clear */
#define HSCROLLAMOUNT 0x80 /* Only reachable with EXTREG set */
#endif
server/drivers/hd44780-picanlcd.c
+1 -1
View File
@@ -105,7 +105,7 @@ hd_init_picanlcd (Driver *drvthis)
p->hd44780_functions->backlight = picanlcd_HD44780_backlight;
p->hd44780_functions->scankeypad = picanlcd_HD44780_scankeypad;
common_init (p);
common_init (p, IF_8BIT);
return 0;
}
server/drivers/hd44780-serialLpt.c
+1 -1
View File
@@ -106,7 +106,7 @@ hd_init_serialLpt (Driver *drvthis)
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_4BIT | TWOLINE | SMALLCHAR);
hd44780_functions->uPause (p, 40);
common_init (p);
common_init (p, IF_8BIT);
return 0;
}
server/drivers/hd44780-winamp.c
+2 -4
View File
@@ -109,10 +109,8 @@ hd_init_winamp (Driver *drvthis)
hd44780_functions->uPause (p, 4100);
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT);
hd44780_functions->uPause (p, 100);
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT | TWOLINE | SMALLCHAR);
hd44780_functions->uPause (p, 40);
common_init (p);
common_init (p, IF_8BIT);
if (p->have_keypad) {
// Remember which input lines are stuck
@@ -139,7 +137,7 @@ lcdwinamp_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned ch
portControl |= p->backlight_bit;
if (displayID == 0)
enableLines = EnMask[0] | EnMask[1] | ((p->extIF) ? EnMask[2] : 0);
enableLines = EnMask[0] | EnMask[1] | EnMask[2];
else
enableLines = EnMask[displayID - 1];
server/drivers/hd44780.c
+25 -12
View File
@@ -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
}