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[lcd4linux @ 2000-03-10 10:49:53 by reinelt]

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MatrixOrbital driver finished

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@6 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
reinelt
2000-03-10 10:49:53 +00:00
parent 0dd0127bbf
commit 590366a013
5 changed files with 343 additions and 111 deletions
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353
MatrixOrbital.c
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@@ -9,18 +9,236 @@
#include "config.h"
#include "display.h"
#define XRES 5
#define YRES 8
#define CHARS 8
static DISPLAY Display;
static char *Device=NULL;
static char *Port=NULL;
static int Device=-1;
typedef struct {
int len1;
int len2;
int type;
int segment;
} BAR;
typedef struct {
int len1;
int len2;
int type;
int used;
int ascii;
} SEGMENT;
static char Txt[4][40];
static BAR Bar[4][40];
static int nSegment=2;
static SEGMENT Segment[256] = {{ len1: 0, len2: 0, type:255, used:0, ascii:32 },
{ len1:XRES, len2:XRES, type:255, used:0, ascii:255 }};
#define CL 0x0b
static int MO_open (void)
{
int fd;
struct termios portset;
fd = open(Port, O_RDWR | O_NOCTTY | O_NDELAY);
if (fd==-1) {
fprintf (stderr, "MatrixOrbital: open(%s) failed: %s\n", Port, strerror(errno));
return -1;
}
if (tcgetattr(fd, &portset)==-1) {
fprintf (stderr, "MatrixOrbital: tcgetattr(%s) failed: %s\n", Port, strerror(errno));
return -1;
}
cfmakeraw(&portset);
cfsetospeed(&portset, B19200);
if (tcsetattr(fd, TCSANOW, &portset)==-1) {
fprintf (stderr, "MatrixOrbital: tcsetattr(%s) failed: %s\n", Port, strerror(errno));
return -1;
}
return fd;
}
static void MO_write (char *string, int len)
{
if (Device==-1) return;
if (write (Device, string, len)==-1) {
if (errno==EAGAIN) {
usleep(1000);
if (write (Device, string, len)>=0) return;
}
fprintf (stderr, "MatrixOrbital: write(%s) failed: %s\n", Port, strerror(errno));
}
}
static int MO_contrast (void)
{
char buffer[4];
int contrast;
contrast=atoi(cfg_get("contrast"));
if (contrast==0) contrast=160;
snprintf (buffer, 4, "\376P%c", contrast);
MO_write (buffer, 3);
return 0;
}
static void MO_process_bars (void)
{
int row, col;
int i, j;
for (i=2; i<nSegment && Segment[i].used; i++);
for (j=i+1; j<nSegment; j++) {
if (Segment[j].used)
Segment[i++]=Segment[j];
}
nSegment=i;
for (row=0; row<Display.rows; row++) {
for (col=0; col<Display.cols; col++) {
if (Bar[row][col].type==0) continue;
for (i=0; i<nSegment; i++) {
if (Segment[i].type & Bar[row][col].type &&
Segment[i].len1== Bar[row][col].len1 &&
Segment[i].len2== Bar[row][col].len2) break;
}
if (i==nSegment) {
nSegment++;
Segment[i].len1=Bar[row][col].len1;
Segment[i].len2=Bar[row][col].len2;
Segment[i].type=Bar[row][col].type;
Segment[i].used=0;
Segment[i].ascii=-1;
}
Bar[row][col].segment=i;
}
}
}
#define sqr(x) ((x)*(x))
static void MO_compact_bars (void)
{
int i, j, r, c, min;
int pack_i, pack_j;
int error[nSegment][nSegment];
if (nSegment>CHARS+2) {
for (i=2; i<nSegment; i++) {
for (j=0; j<nSegment; j++) {
error[i][j]=65535;
if (i==j) continue;
if (Segment[i].used) continue;
if (!(Segment[i].type & Segment[j].type)) continue;
if (Segment[i].len1==0 && Segment[j].len1!=0) continue;
if (Segment[i].len2==0 && Segment[j].len2!=0) continue;
if (Segment[i].len1==XRES && Segment[j].len1!=XRES) continue;
if (Segment[i].len2==XRES && Segment[j].len2!=XRES) continue;
if (Segment[i].len1==Segment[i].len2 && Segment[j].len1!=Segment[j].len2) continue;
error[i][j]=sqr(Segment[i].len1-Segment[j].len1)+sqr(Segment[i].len2-Segment[j].len2);
}
}
while (nSegment>CHARS+2) {
min=65535;
pack_i=-1;
for (i=2; i<nSegment; i++) {
for (j=0; j<nSegment; j++) {
if (error[i][j]<min) {
min=error[i][j];
pack_i=i;
pack_j=j;
}
}
}
if (pack_i==-1) {
fprintf (stderr, "MatrixOrbital: unable to compact bar characters\n");
nSegment=CHARS;
break;
}
nSegment--;
Segment[pack_i]=Segment[nSegment];
for (i=0; i<nSegment; i++) {
error[pack_i][i]=error[nSegment][i];
error[i][pack_i]=error[i][nSegment];
}
for (r=0; r<Display.rows; r++) {
for (c=0; c<Display.cols; c++) {
if (Bar[r][c].segment==pack_i)
Bar[r][c].segment=pack_j;
if (Bar[r][c].segment==nSegment)
Bar[r][c].segment=pack_i;
}
}
}
}
}
static void MO_define_chars (void)
{
int i, j, c;
char buffer[12]="\376N";
char Pixel[] = {0, 16, 24, 28, 30, 31};
for (i=2; i<nSegment; i++) {
if (Segment[i].used) continue;
if (Segment[i].ascii!=-1) continue;
for (c=0; c<CHARS; c++) {
for (j=2; j<nSegment; j++) {
if (Segment[j].ascii==c) break;
}
if (j==nSegment) break;
}
Segment[i].ascii=c;
buffer[2]=c;
buffer[3]=Pixel[Segment[i].len1];
buffer[4]=Pixel[Segment[i].len1];
buffer[5]=Pixel[Segment[i].len1];
buffer[6]=Pixel[Segment[i].len1];
buffer[7]=Pixel[Segment[i].len2];
buffer[8]=Pixel[Segment[i].len2];
buffer[9]=Pixel[Segment[i].len2];
buffer[10]=Pixel[Segment[i].len2];
MO_write (buffer, 11);
}
}
int MO_clear (void)
{
int row, col;
for (row=0; row<Display.rows; row++) {
for (col=0; col<Display.cols; col++) {
Txt[row][col]=CL;
Bar[row][col].len1=-1;
Bar[row][col].len2=-1;
Bar[row][col].type=0;
Bar[row][col].segment=-1;
}
}
MO_write ("\014", 1);
return 0;
}
int MO_init (DISPLAY *Self)
{
char *port;
printf ("initializing MatrixOrbital...\n");
if (Device) {
free (Device);
Device=NULL;
Display=*Self;
if (Port) {
free (Port);
Port=NULL;
}
port=cfg_get ("port");
@@ -28,39 +246,99 @@ int MO_init (DISPLAY *Self)
fprintf (stderr, "MatrixOrbital: no 'port' entry in %s\n", cfg_file());
return -1;
}
Device=strdup(port);
Port=strdup(port);
Device=MO_open();
if (Device==-1) return -1;
MO_clear();
MO_contrast();
MO_write ("\376B", 3); // backlight on
MO_write ("\376K", 2); // cursor off
MO_write ("\376T", 2); // blink off
MO_write ("\376D", 2); // line wrapping off
MO_write ("\376R", 2); // auto scroll off
MO_write ("\376V", 2); // GPO off
return 0;
}
int MO_put (int row, int col, char *text)
{
char *p=&Txt[row][col];
char *t=text;
lcd=lcd_open();
if (lcd==-1) return -1;
while (*t && col++<=Display.cols) {
*p++=*t++;
}
return 0;
}
int MO_bar (int type, int row, int col, int max, int len1, int len2)
{
if (len1<1) len1=1;
else if (len1>max) len1=max;
lcd_clear();
lcd_write ("\376B", 3); // backlight on
lcd_write ("\376K", 2); // cursor off
lcd_write ("\376T", 2); // blink off
lcd_write ("\376D", 2); // line wrapping off
lcd_write ("\376R", 2); // auto scroll off
lcd_write ("\376V", 2); // GPO off
return 0;
}
int MO_clear (void)
{
return 0;
}
int MO_put (int x, int y, char *text)
{
return 0;
}
int MO_bar (int type, int x, int y, int max, int len1, int len2)
{
if (len2<1) len2=1;
else if (len2>max) len2=max;
while (max>0 && col<=Display.cols) {
Bar[row][col].type=type;
Bar[row][col].segment=-1;
if (len1>=XRES) {
Bar[row][col].len1=XRES;
len1-=XRES;
} else {
Bar[row][col].len1=len1;
len1=0;
}
if (len2>=XRES) {
Bar[row][col].len2=XRES;
len2-=XRES;
} else {
Bar[row][col].len2=len2;
len2=0;
}
max-=XRES;
col++;
}
return 0;
}
int MO_flush (void)
{
char buffer[256]="\376G";
char *p;
int s, row, col;
MO_process_bars();
MO_compact_bars();
MO_define_chars();
for (s=0; s<nSegment; s++) {
Segment[s].used=0;
}
for (row=0; row<Display.rows; row++) {
buffer[3]=row+1;
for (col=0; col<Display.cols; col++) {
s=Bar[row][col].segment;
if (s!=-1) {
Segment[s].used=1;
Txt[row][col]=Segment[s].ascii;
}
}
for (col=0; col<Display.cols; col++) {
if (Txt[row][col]==CL) continue;
buffer[2]=col+1;
for (p=buffer+4; col<Display.cols; col++, p++) {
if (Txt[row][col]==CL) break;
*p=Txt[row][col];
}
MO_write (buffer, p-buffer);
}
}
return 0;
}
@@ -68,11 +346,10 @@ int MO_flush (void)
#define BARS ( BAR_L | BAR_R | BAR_U | BAR_D | BAR_S )
DISPLAY MatrixOrbital[] = {
{ "LCD0821", 8, 2, 5, 8, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD1621", 16, 2, 5, 8, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD2021", 20, 2, 5, 8, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD2041", 20, 4, 5, 8, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD4021", 40, 2, 5, 8, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD0821", 2, 8, XRES, YRES, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD1621", 2, 16, XRES, YRES, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD2021", 2, 20, XRES, YRES, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD2041", 4, 20, XRES, YRES, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "LCD4021", 2, 40, XRES, YRES, BARS, MO_init, MO_clear, MO_put, MO_bar, MO_flush },
{ "" }
};