mangavalk/lcdproc
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v0.5 kick-off

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This commit is contained in:
robijn
2001-12-30 00:15:25 +00:00
parent c28d25b795
commit 71056ec551
88 changed files with 6638 additions and 5469 deletions
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server/drivers/hd44780-4bit.c
+89 -91
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@@ -61,7 +61,7 @@
*/
#include "hd44780-4bit.h"
#include "hd44780.h"
#include "hd44780-low.h"
#include "lpt-port.h"
#include "port.h"
@@ -76,9 +76,9 @@
// HD44780_senddata
// HD44780_readkeypad
void lcdstat_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned char ch);
void lcdstat_HD44780_backlight (unsigned char state);
unsigned char lcdstat_HD44780_readkeypad (unsigned int YData);
void lcdstat_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch);
void lcdstat_HD44780_backlight (PrivateData *p, unsigned char state);
unsigned char lcdstat_HD44780_readkeypad (PrivateData *p, unsigned int YData);
#define RS 0x10
#define RW 0x20
@@ -88,88 +88,86 @@ unsigned char lcdstat_HD44780_readkeypad (unsigned int YData);
#define BL 0x20
// note that the above bits are all meant for the data port of LPT
static unsigned char EnMask[] = { EN1, EN2, EN3, STRB, LF, INIT, SEL };
static const unsigned char EnMask[] = { EN1, EN2, EN3, STRB, LF, INIT, SEL };
#define ALLEXT (STRB|LF|INIT|SEL)
// The above bits are on the control port of LPT
static unsigned int lptPort;
static char stuckinputs = 0; // if an input line is stuck, it will be ignored
static char backlight_bit = 0; // default to low to enable three displays
// initialisation function
int
hd_init_4bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver, char *args, unsigned int port)
hd_init_4bit (Driver *drvthis)
{
PrivateData *p = (PrivateData*) drvthis->private_data;
HD44780_functions *hd44780_functions = p->hd44780_functions;
int enableLines = EN1 | EN2;
// Reserve the port registers
lptPort = port;
port_access(lptPort);
port_access(lptPort+1);
port_access(lptPort+2);
port_access(p->port);
port_access(p->port+1);
port_access(p->port+2);
hd44780_functions->senddata = lcdstat_HD44780_senddata;
hd44780_functions->backlight = lcdstat_HD44780_backlight;
hd44780_functions->readkeypad = lcdstat_HD44780_readkeypad;
// powerup the lcd now
if (extIF) {
if (p->extIF) {
enableLines |= EN3;
port_out (lptPort + 2, 0 ^ OUTMASK);
port_out (p->port + 2, 0 ^ OUTMASK);
}
port_out (lptPort, 0x03);
if( delayBus ) hd44780_functions->uPause (1);
port_out (p->port, 0x03);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (lptPort, enableLines | 0x03);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x03);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (4100);
port_out (p->port, enableLines | 0x03);
if (p->extIF)
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);
hd44780_functions->uPause (p, 4100);
port_out (lptPort, enableLines | 0x03);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x03);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (100);
port_out (p->port, enableLines | 0x03);
if (p->extIF)
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);
hd44780_functions->uPause (p, 100);
port_out (lptPort, enableLines | 0x03);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x03);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (40);
port_out (p->port, enableLines | 0x03);
if (p->extIF)
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);
hd44780_functions->uPause (p, 40);
// now in 8-bit mode... set 4-bit mode
port_out (lptPort, 0x02);
if( delayBus ) hd44780_functions->uPause (1);
port_out (p->port, 0x02);
if( p->delayBus ) hd44780_functions->uPause (p, 1);
port_out (lptPort, enableLines | 0x02);
if (extIF)
port_out (lptPort + 2, ALLEXT ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, 0x02);
if (extIF)
port_out (lptPort + 2, 0 ^ OUTMASK);
hd44780_functions->uPause (40);
port_out (p->port, enableLines | 0x02);
if (p->extIF)
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);
hd44780_functions->uPause (p, 40);
// Set up two-line, small character (5x8) mode
hd44780_functions->senddata (0, RS_INSTR, FUNCSET | TWOLINE | SMALLCHAR );
hd44780_functions->uPause (40);
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | TWOLINE | SMALLCHAR );
hd44780_functions->uPause (p, 40);
common_init ();
common_init (p);
if (have_keypad) {
if (p->have_keypad) {
// Remember which input lines are stuck
stuckinputs = lcdstat_HD44780_readkeypad (0);
p->stuckinputs = lcdstat_HD44780_readkeypad (p, 0);
}
return 0;
@@ -177,7 +175,7 @@ hd_init_4bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver
// lcdstat_HD44780_senddata
void
lcdstat_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned char ch)
lcdstat_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch)
{
unsigned char enableLines = 0, portControl = 0;
unsigned char h = (ch >> 4) & 0x0f; // high and low nibbles
@@ -188,7 +186,7 @@ lcdstat_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned
else //if (flags == RS_DATA)
portControl = RS;
portControl |= backlight_bit;
portControl |= p->backlight_bit;
if (displayID <= 3) {
if (displayID == 0)
@@ -196,64 +194,64 @@ lcdstat_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned
else
enableLines = EnMask[displayID - 1];
port_out (lptPort, portControl | h);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, enableLines | portControl | h);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, portControl | h);
port_out (p->port, portControl | h);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port, enableLines | portControl | h);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port, portControl | h);
port_out (lptPort, portControl | l);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, enableLines | portControl | l);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort, portControl | l);
port_out (p->port, portControl | l);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port, enableLines | portControl | l);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port, portControl | l);
}
if (extIF && (displayID == 0 || displayID >= 4)) {
if (p->extIF && (displayID == 0 || displayID >= 4)) {
if (displayID == 0)
enableLines = ALLEXT;
else
enableLines = EnMask[(displayID - 1)];
port_out (lptPort, portControl | h);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, enableLines ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, 0 ^ OUTMASK);
port_out (p->port, portControl | h);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port + 2, enableLines ^ OUTMASK);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port + 2, 0 ^ OUTMASK);
port_out (lptPort, portControl | l);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, enableLines ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, 0 ^ OUTMASK);
port_out (p->port, portControl | l);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port + 2, enableLines ^ OUTMASK);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port + 2, 0 ^ OUTMASK);
}
}
void lcdstat_HD44780_backlight (unsigned char state)
void lcdstat_HD44780_backlight (PrivateData *p, unsigned char state)
{
backlight_bit = (state?0:0x20); // D5 line
p->backlight_bit = (state?0:0x20); // D5 line
port_out (lptPort, backlight_bit);
port_out (p->port, p->backlight_bit);
}
unsigned char lcdstat_HD44780_readkeypad (unsigned int YData)
unsigned char lcdstat_HD44780_readkeypad (PrivateData *p, unsigned int YData)
{
unsigned char readval;
// 10 bits output or 6 bits if >=3 displays
// Convert the positive logic to the negative logic on the LPT port
port_out (lptPort, ~YData & 0x003F );
if (!extIF) {
port_out (lptPort + 2, ( ((~YData & 0x03C0) << 6 )) ^ OUTMASK);
port_out (p->port, ~YData & 0x003F );
if (!p->extIF) {
port_out (p->port + 2, ( ((~YData & 0x03C0) << 6 )) ^ OUTMASK);
}
if( delayBus ) hd44780_functions->uPause (1);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
// Read inputs
readval = ~ port_in (lptPort + 1) ^ INMASK;
readval = ~ port_in (p->port + 1) ^ INMASK;
// Put port back into idle state for backlight
port_out (lptPort, backlight_bit);
port_out (p->port, p->backlight_bit);
// And convert value back.
return ( (readval >> 4 & 0x03) | (readval >> 5 & 0x04) | (readval >> 3 & 0x08) | (readval << 1 & 0x10) ) & ~stuckinputs;
return ( (readval >> 4 & 0x03) | (readval >> 5 & 0x04) | (readval >> 3 & 0x08) | (readval << 1 & 0x10) ) & ~p->stuckinputs;
}