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-ext8bit.c
+39 -41
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@@ -52,7 +52,7 @@
*/
#include "hd44780-ext8bit.h"
#include "hd44780.h"
#include "hd44780-low.h"
#include "lpt-port.h"
#include "port.h"
@@ -67,57 +67,55 @@
// HD44780_senddata
// HD44780_readkeypad
void lcdtime_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned char ch);
void lcdtime_HD44780_backlight (unsigned char state);
unsigned char lcdtime_HD44780_readkeypad (unsigned int YData);
void lcdtime_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch);
void lcdtime_HD44780_backlight (PrivateData *p, unsigned char state);
unsigned char lcdtime_HD44780_readkeypad (PrivateData *p, unsigned int YData);
#define RS STRB
#define RW LF
#define EN1 INIT
#define BL SEL
static unsigned int lptPort;
static char stuckinputs = 0; // if an input line is stuck, it will be ignored
static char backlight_bit = 0;
static int semid;
// initialise the driver
int
hd_init_ext8bit (HD44780_functions * hd44780_functions, lcd_logical_driver * driver, char *args, unsigned int port)
hd_init_ext8bit (Driver *drvthis)
{
PrivateData *p = (PrivateData*) drvthis->private_data;
HD44780_functions *hd44780_functions = p->hd44780_functions;
semid = sem_get ();
// 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 = lcdtime_HD44780_senddata;
hd44780_functions->backlight = lcdtime_HD44780_backlight;
hd44780_functions->readkeypad = lcdtime_HD44780_readkeypad;
// setup the lcd in 8 bit mode
hd44780_functions->senddata (0, RS_INSTR, FUNCSET | IF_8BIT);
hd44780_functions->uPause (4100);
hd44780_functions->senddata (0, RS_INSTR, FUNCSET | IF_8BIT);
hd44780_functions->uPause (100);
hd44780_functions->senddata (0, RS_INSTR, FUNCSET | IF_8BIT | TWOLINE | SMALLCHAR);
hd44780_functions->uPause (40);
hd44780_functions->senddata (p, 0, RS_INSTR, FUNCSET | IF_8BIT);
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 ();
common_init (p);
if (have_keypad) {
if (p->have_keypad) {
// Remember which input lines are stuck
stuckinputs = lcdtime_HD44780_readkeypad (0);
p->stuckinputs = lcdtime_HD44780_readkeypad (p, 0);
}
return 0;
}
// lcdtime_HD44780_senddata
void
lcdtime_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned char ch)
lcdtime_HD44780_senddata (PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch)
{
unsigned char enableLines = 0, portControl;
@@ -129,28 +127,28 @@ lcdtime_HD44780_senddata (unsigned char displayID, unsigned char flags, unsigned
else //if (iflags == RS_DATA)
portControl = RS;
portControl |= backlight_bit;
portControl |= p->backlight_bit;
sem_wait (semid);
port_out (lptPort + 2, portControl ^ OUTMASK);
port_out (lptPort, ch);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, (enableLines|portControl) ^ OUTMASK);
if( delayBus ) hd44780_functions->uPause (1);
port_out (lptPort + 2, portControl ^ OUTMASK);
port_out (p->port + 2, portControl ^ OUTMASK);
port_out (p->port, ch);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port + 2, (enableLines|portControl) ^ OUTMASK);
if( p->delayBus ) p->hd44780_functions->uPause (p, 1);
port_out (p->port + 2, portControl ^ OUTMASK);
sem_signal (semid);
}
void lcdtime_HD44780_backlight (unsigned char state)
void lcdtime_HD44780_backlight (PrivateData *p, unsigned char state)
{
backlight_bit = (state?0:SEL);
p->backlight_bit = (state?0:SEL);
// Semaphores not needed because backlight will not go together with
// the bacrgraph anyway...
port_out (lptPort + 2, backlight_bit ^ OUTMASK);
port_out (p->port + 2, p->backlight_bit ^ OUTMASK);
}
unsigned char lcdtime_HD44780_readkeypad (unsigned int YData)
unsigned char lcdtime_HD44780_readkeypad (PrivateData *p, unsigned int YData)
{
unsigned char readval;
@@ -158,19 +156,19 @@ unsigned char lcdtime_HD44780_readkeypad (unsigned int YData)
// 10 bits output or 8 bits if >=3 displays
// Convert the positive logic to the negative logic on the LPT port
port_out (lptPort, ~YData & 0x00FF );
if (!extIF) {
port_out (lptPort + 2, ( ((~YData & 0x0100) >> 8) | ((~YData & 0x0200) >> 6)) ^ OUTMASK);
port_out (p->port, ~YData & 0x00FF );
if (!p->extIF) {
port_out (p->port + 2, ( ((~YData & 0x0100) >> 8) | ((~YData & 0x0200) >> 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 ^ OUTMASK);
port_out (p->port, p->backlight_bit ^ OUTMASK);
sem_signal (semid);
// 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;
}