599 lines
12 KiB
C
599 lines
12 KiB
C
/*
|
|
*
|
|
* Chris Debenham - eSun Systems Engineer <chris.debenham@aus.sun.com>
|
|
*
|
|
* Heres a bit more info on the display.
|
|
* It is the LB216 and is made by R.T.N. Australia
|
|
* The web page for it is http://www.nollet.com.au/
|
|
* It is a serial 16x2 LCD with software controllable backlight.
|
|
* They also make 40x4 displays (which I'll be getting one of soon :-) )
|
|
* 3 wire connection (5V,0V and serial), 2400 or 9600 bps.
|
|
* 8 custom characters
|
|
* 40*83.5MM size
|
|
* made in australia :-)
|
|
*
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <termios.h>
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
//#ifdef HAVE_NCURSES_H
|
|
//# include <ncurses.h>
|
|
//#else
|
|
//# include <curses.h>
|
|
//#endif
|
|
|
|
#include "lcd.h"
|
|
#include "lb216.h"
|
|
#include "shared/str.h"
|
|
#include "report.h"
|
|
//#include "drv_base.h"
|
|
|
|
#define LB216_DEFAULT_DEVICE "/dev/lcd"
|
|
#define LB216_DEFAULT_SPEED 9600
|
|
#define LB216_DEFAULT_BRIGHTNESS 255
|
|
|
|
static int custom=0;
|
|
typedef enum {
|
|
hbar = 1,
|
|
vbar = 2,
|
|
bign = 4,
|
|
beat = 8 } custom_type;
|
|
|
|
|
|
static int fd;
|
|
static char *framebuf = NULL;
|
|
static int width = LCD_DEFAULT_WIDTH;
|
|
static int height = LCD_DEFAULT_HEIGHT;
|
|
static int cellwidth = LCD_DEFAULT_CELLWIDTH;
|
|
static int cellheight = LCD_DEFAULT_CELLHEIGHT;
|
|
|
|
static void LB216_hidecursor();
|
|
static void LB216_reboot();
|
|
|
|
// Vars for the server core
|
|
MODULE_EXPORT char *api_version = API_VERSION;
|
|
MODULE_EXPORT int stay_in_foreground = 0;
|
|
MODULE_EXPORT int supports_multiple = 0;
|
|
MODULE_EXPORT char *symbol_prefix = "LB216_";
|
|
|
|
|
|
// TODO: Get the frame buffers working right
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Opens com port and sets baud correctly...
|
|
//
|
|
MODULE_EXPORT int
|
|
LB216_init(Driver * drvthis)
|
|
{
|
|
struct termios portset;
|
|
int reboot=0;
|
|
char device[256] = LB216_DEFAULT_DEVICE;
|
|
int speed = LB216_DEFAULT_SPEED;
|
|
int backlight_brightness = LB216_DEFAULT_BRIGHTNESS;
|
|
|
|
|
|
/* Read config file */
|
|
|
|
/* What device should be used */
|
|
strncpy(device, drvthis->config_get_string(drvthis->name, "Device", 0,
|
|
LB216_DEFAULT_DEVICE), sizeof(device));
|
|
device[sizeof(device)-1] = '\0';
|
|
|
|
/* What speed to use */
|
|
speed = drvthis->config_get_int(drvthis->name, "Speed", 0, LB216_DEFAULT_SPEED);
|
|
|
|
if (speed == 2400) speed = B2400;
|
|
else if (speed == 9600) speed = B9600;
|
|
else {
|
|
report(RPT_WARNING, "lb216_init: Illegal speed: %d. Must be 2400 or 9600. Using default.\n", speed);
|
|
speed = B9600;
|
|
}
|
|
|
|
/* Which backlight brightness */
|
|
backlight_brightness = drvthis->config_get_int ( drvthis->name , "Brightness" , 0 , LB216_DEFAULT_BRIGHTNESS);
|
|
if ((backlight_brightness < 0) || (backlight_brightness > 255)) {
|
|
report (RPT_WARNING, "lb216_init: Brightness must be between 0 and 255. Using default value.\n");
|
|
backlight_brightness = LB216_DEFAULT_BRIGHTNESS;
|
|
}
|
|
|
|
/* Reboot display? */
|
|
reboot = drvthis->config_get_bool( drvthis->name , "Reboot", 0, 0);
|
|
if (reboot)
|
|
report (RPT_INFO, "LCDd: rebooting LB216 LCD...\n");
|
|
|
|
/* End of config file parsing */
|
|
|
|
// Set up io port correctly, and open it...
|
|
fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY);
|
|
if (fd == -1)
|
|
{
|
|
report(RPT_ERR, "lb216_init: open(%s) failed (%s)\n", device, strerror(errno));
|
|
return -1;
|
|
}
|
|
report(RPT_DEBUG, "lb216_init: opened device %s\n", device);
|
|
|
|
tcgetattr(fd, &portset);
|
|
|
|
// We use RAW mode
|
|
#ifdef HAVE_CFMAKERAW
|
|
// The easy way
|
|
cfmakeraw( &portset );
|
|
#else
|
|
// The hard way
|
|
portset.c_iflag &= ~( IGNBRK | BRKINT | PARMRK | ISTRIP
|
|
| INLCR | IGNCR | ICRNL | IXON );
|
|
portset.c_oflag &= ~OPOST;
|
|
portset.c_lflag &= ~( ECHO | ECHONL | ICANON | ISIG | IEXTEN );
|
|
portset.c_cflag &= ~( CSIZE | PARENB | CRTSCTS );
|
|
portset.c_cflag |= CS8 | CREAD | CLOCAL ;
|
|
#endif
|
|
|
|
// Set port speed
|
|
cfsetospeed (&portset, speed);
|
|
cfsetispeed (&portset, B0);
|
|
|
|
// Do it...
|
|
tcsetattr(fd, TCSANOW, &portset);
|
|
|
|
// Make sure the frame buffer is there...
|
|
framebuf = malloc (width * height);
|
|
if (framebuf == NULL) {
|
|
report(RPT_ERR, "lb216_init: unable to create framebuffer.\n");
|
|
return -1;
|
|
}
|
|
memset (framebuf, ' ', width * height);
|
|
|
|
// Set display-specific stuff..
|
|
if (reboot)
|
|
{
|
|
LB216_reboot();
|
|
sleep(4);
|
|
reboot=0;
|
|
}
|
|
sleep(1);
|
|
LB216_hidecursor();
|
|
LB216_backlight(drvthis, backlight_brightness);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Clean-up
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_close(Driver * drvthis)
|
|
{
|
|
close (fd);
|
|
|
|
if (framebuf)
|
|
free(framebuf);
|
|
framebuf = NULL;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Returns the display width
|
|
//
|
|
MODULE_EXPORT int
|
|
LB216_width (Driver *drvthis)
|
|
{
|
|
return width;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Returns the display height
|
|
//
|
|
MODULE_EXPORT int
|
|
LB216_height (Driver *drvthis)
|
|
{
|
|
return height;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Clears the LCD screen
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_clear (Driver * drvthis)
|
|
{
|
|
memset (framebuf, ' ', width * height);
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Flushes the framebuffer to the LCD
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_flush(Driver * drvthis)
|
|
{
|
|
char out[LCD_MAX_WIDTH * LCD_MAX_HEIGHT];
|
|
int i,j;
|
|
|
|
snprintf (out, sizeof(out), "%c%c", 254,80);
|
|
write(fd, out, 2);
|
|
|
|
for(j=0; j<height; j++) {
|
|
if (j>=2) {
|
|
snprintf (out, sizeof(out),"%c%c",254,148+(64*(j-2)));
|
|
} else {
|
|
snprintf (out, sizeof(out),"%c%c",254,128+(64*(j)));
|
|
}
|
|
write(fd, out, 2);
|
|
for(i=0; i<width; i++) {
|
|
write(fd, framebuf + i+(j*width), 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Prints a character on the lcd display, at position (x,y). The
|
|
// upper-left is (1,1), and the lower right should be (16,2).
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_chr(Driver * drvthis, int x, int y, char c)
|
|
{
|
|
//y--;
|
|
// x--;
|
|
|
|
//if(c < 32 && c >= 0) c += 128;
|
|
// framebuf[(y*width) + x] = c;
|
|
|
|
// char chr[1];
|
|
// snprintf (chr, sizeof(chr), "%c", c);
|
|
// Above two lines are incorrect (Joris)
|
|
|
|
char chr[2];
|
|
chr[0] = c;
|
|
chr[1] = 0;
|
|
LB216_string (drvthis, x, y, chr);
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Sets the backlight on or off -- can be done quickly for
|
|
// an intermediate brightness...
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_backlight(Driver * drvthis, int on)
|
|
{
|
|
char out[4];
|
|
if(on)
|
|
{
|
|
snprintf (out, sizeof(out), "%c%c", 254, 253);
|
|
}
|
|
else
|
|
{
|
|
snprintf (out, sizeof(out), "%c%c", 254, 252);
|
|
}
|
|
write(fd, out, 2);
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Get rid of the blinking curson
|
|
//
|
|
static void LB216_hidecursor()
|
|
{
|
|
char out[4];
|
|
snprintf (out, sizeof(out), "%c%c", 254,12);
|
|
write(fd, out, 2);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Reset the display bios
|
|
//
|
|
static void LB216_reboot()
|
|
{
|
|
char out[4];
|
|
snprintf (out, sizeof(out), "%c%c", 254,1);
|
|
write(fd, out, 2);
|
|
}
|
|
|
|
|
|
MODULE_EXPORT void
|
|
LB216_string (Driver * drvthis, int x, int y, char string[])
|
|
{
|
|
int i;
|
|
char c;
|
|
|
|
//printf("%d,%d:%s\n",x,y,string);
|
|
y--;x--;
|
|
for(i=0; string[i]; i++)
|
|
{
|
|
c = string[i];
|
|
switch(c)
|
|
{
|
|
case '\254': c = '#'; break;
|
|
}
|
|
framebuf[(y*width) + x+i] = c;
|
|
}
|
|
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Sets up for vertical bars. Call before LB216->vbar()
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_init_vbar(Driver * drvthis)
|
|
{
|
|
char a[] = {
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
};
|
|
char b[] = {
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
char c[] = {
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
char d[] = {
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
char e[] = {
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
char f[] = {
|
|
0,0,0,0,0,
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
char g[] = {
|
|
0,0,0,0,0,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
|
|
if(custom!=vbar) {
|
|
LB216_set_char(drvthis, 1,a);
|
|
LB216_set_char(drvthis, 2,b);
|
|
LB216_set_char(drvthis, 3,c);
|
|
LB216_set_char(drvthis, 4,d);
|
|
LB216_set_char(drvthis, 5,e);
|
|
LB216_set_char(drvthis, 6,f);
|
|
LB216_set_char(drvthis, 7,g);
|
|
custom=vbar;
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Inits horizontal bars...
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_init_hbar(Driver * drvthis)
|
|
{
|
|
|
|
char a[] = {
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
1,0,0,0,0,
|
|
};
|
|
char b[] = {
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
1,1,0,0,0,
|
|
};
|
|
char c[] = {
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
1,1,1,0,0,
|
|
};
|
|
char d[] = {
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
1,1,1,1,0,
|
|
};
|
|
char e[] = {
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
1,1,1,1,1,
|
|
};
|
|
|
|
if(custom!=hbar) {
|
|
LB216_set_char(drvthis, 1,a);
|
|
LB216_set_char(drvthis, 2,b);
|
|
LB216_set_char(drvthis, 3,c);
|
|
LB216_set_char(drvthis, 4,d);
|
|
LB216_set_char(drvthis, 5,e);
|
|
custom=hbar;
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Draws a vertical bar...
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_vbar(Driver * drvthis, int x, int len)
|
|
{
|
|
char map[9] = {32, 1, 2, 3, 4, 5, 6, 7, 255 };
|
|
|
|
|
|
int y;
|
|
for(y=height; y > 0 && len>0; y--)
|
|
{
|
|
if(len >= cellheight) LB216_chr(drvthis, x, y, 255);
|
|
else LB216_chr(drvthis, x, y, map[len]);
|
|
|
|
len -= cellheight;
|
|
}
|
|
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Draws a horizontal bar to the right.
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_hbar(Driver * drvthis, int x, int y, int len)
|
|
{
|
|
char map[7] = { 32, 1, 2, 3, 4, 5 };
|
|
|
|
for(; x<=width && len>0; x++)
|
|
{
|
|
if(len >= cellwidth) LB216_chr(drvthis, x,y,map[5]);
|
|
else LB216_chr(drvthis, x, y, map[len]);
|
|
|
|
//printf ("%d,",len);
|
|
len -= cellwidth;
|
|
|
|
}
|
|
// printf ("\n");
|
|
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
// Sets a custom character from 0-7...
|
|
//
|
|
// For input, values > 0 mean "on" and values <= 0 are "off".
|
|
//
|
|
// The input is just an array of characters...
|
|
//
|
|
MODULE_EXPORT void
|
|
LB216_set_char(Driver * drvthis, int n, char *dat)
|
|
{
|
|
char out[4];
|
|
int row, col;
|
|
int letter;
|
|
|
|
if(n < 0 || n > 7) return;
|
|
n=64+(8*n);
|
|
if(!dat) return;
|
|
|
|
snprintf (out, sizeof(out), "%c%c", 254, n);
|
|
write(fd, out, 2);
|
|
|
|
for(row=0; row<cellheight; row++)
|
|
{
|
|
letter = 1;
|
|
for(col=0; col<cellwidth; col++)
|
|
{
|
|
letter <<= 1;
|
|
letter |= (dat[(row*cellwidth) + col] > 0);
|
|
}
|
|
snprintf (out, sizeof(out),"%c",letter);
|
|
write(fd, out, 1);
|
|
}
|
|
}
|
|
|
|
MODULE_EXPORT int
|
|
LB216_icon(Driver * drvthis, int x, int y, int icon)
|
|
{
|
|
static char heart_open[] = {
|
|
1, 1, 1, 1, 1,
|
|
1, 0, 1, 0, 1,
|
|
0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0,
|
|
1, 0, 0, 0, 1,
|
|
1, 1, 0, 1, 1,
|
|
1, 1, 1, 1, 1 };
|
|
|
|
static char heart_filled[] = {
|
|
1, 1, 1, 1, 1,
|
|
1, 0, 1, 0, 1,
|
|
0, 1, 0, 1, 0,
|
|
0, 1, 1, 1, 0,
|
|
0, 1, 1, 1, 0,
|
|
1, 0, 1, 0, 1,
|
|
1, 1, 0, 1, 1,
|
|
1, 1, 1, 1, 1 };
|
|
|
|
switch( icon )
|
|
{
|
|
case ICON_BLOCK_FILLED:
|
|
LB216_chr( drvthis, x, y, 255 );
|
|
break;
|
|
case ICON_HEART_FILLED:
|
|
LB216_set_char( drvthis, 0, heart_filled );
|
|
LB216_chr( drvthis, x, y, 0 );
|
|
break;
|
|
case ICON_HEART_OPEN:
|
|
LB216_set_char( drvthis, 0, heart_open );
|
|
LB216_chr( drvthis, x, y, 0 );
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|