-/* $Id: Cwlinux.c,v 1.1 2002/09/11 05:16:32 reinelt Exp $
+/* $Id: Cwlinux.c,v 1.2 2002/09/11 05:32:35 reinelt Exp $
*
* driver for Cwlinux serial display modules
*
*
*
* $Log: Cwlinux.c,v $
+ * Revision 1.2 2002/09/11 05:32:35 reinelt
+ * changed to use new bar functions
+ *
* Revision 1.1 2002/09/11 05:16:32 reinelt
* added Cwlinux driver
*
#include "cfg.h"
#include "lock.h"
#include "display.h"
+#include "bar.h"
#define XRES 6
#define YRES 8
#define CHARS 7
-#define BARS ( BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2 )
#define LCD_CMD 254
#define LCD_CMD_END 253
#define UPDATE_DELAY 0 /* 1 sec */
#define SETUP_DELAY 0 /* 2 sec */
-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 LCD Lcd;
static char *Port = NULL;
static speed_t Speed;
static int Device = -1;
static char Txt[4][20];
-static BAR Bar[4][20];
static int nSegment = 2;
static SEGMENT Segment[128] = { {len1: 0, len2: 0, type: 255, \
used: 0, ascii:32} };
-int Read_LCD(int fd, char *c, int size)
+static int Read_LCD(int fd, char *c, int size)
{
int rc;
return rc;
}
-int Write_LCD(int fd, char *c, int size)
+static int Write_LCD(int fd, char *c, int size)
{
int rc;
}
-void Enable_Cursor(int fd)
+static void Enable_Cursor(int fd)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-void Disable_Cursor(int fd)
+static void Disable_Cursor(int fd)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-void Clear_Screen(int fd)
+static void Clear_Screen(int fd)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-void Enable_Wrap(int fd)
+static void Enable_Wrap(int fd)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-void Init_Port(fd)
+static void Init_Port(fd)
{
/* Posix - set baudrate to 0 and back */
struct termios tty, old;
tcsetattr(fd, TCSANOW, &old);
}
-void Setup_Port(int fd, speed_t speed)
+static void Setup_Port(int fd, speed_t speed)
{
struct termios portset;
tcsetattr(fd, TCSANOW, &portset);
}
-void Set_9600(int fd)
+static void Set_9600(int fd)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-void Set_19200(int fd)
+static void Set_19200(int fd)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-int Write_Line_LCD(int fd, char *buf, int size)
+static int Write_Line_LCD(int fd, char *buf, int size)
{
int i;
char c;
return 0;
}
-void Set_Insert(int fd, int row, int col)
+static void Set_Insert(int fd, int row, int col)
{
char c;
int rc;
rc = Write_LCD(fd, &c, 1);
}
-void CwLnx_backlight(int on)
+static void CwLnx_backlight(int on)
{
static int current = -1;
int realbacklight = -1;
return 0;
}
-static void CwLnx_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 < Lcd.rows; row++) {
- for (col = 0; col < Lcd.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;
- }
- }
-}
-
-static int CwLnx_segment_diff(int i, int j)
-{
- int RES;
- int i1, i2, j1, j2;
-
- if (i == j)
- return 65535;
- if (!(Segment[i].type & Segment[j].type))
- return 65535;
- if (Segment[i].len1 == 0 && Segment[j].len1 != 0)
- return 65535;
- if (Segment[i].len2 == 0 && Segment[j].len2 != 0)
- return 65535;
- RES = Segment[i].type & BAR_H ? XRES : YRES;
- if (Segment[i].len1 >= RES && Segment[j].len1 < RES)
- return 65535;
- if (Segment[i].len2 >= RES && Segment[j].len2 < RES)
- return 65535;
- if (Segment[i].len1 == Segment[i].len2
- && Segment[j].len1 != Segment[j].len2)
- return 65535;
-
- i1 = Segment[i].len1;
- if (i1 > RES)
- i1 = RES;
- i2 = Segment[i].len2;
- if (i2 > RES)
- i2 = RES;
- j1 = Segment[j].len1;
- if (j1 > RES)
- i1 = RES;
- j2 = Segment[j].len2;
- if (j2 > RES)
- i2 = RES;
-
- return (i1 - i2) * (i1 - i2) + (j1 - j2) * (j1 - j2);
-}
-
-static void CwLnx_compact_bars(void)
-{
- int i, j, r, c, min;
- int pack_i, pack_j;
- int pass1 = 1;
- int deviation[nSegment][nSegment];
-
- if (nSegment > CHARS + 2) {
-
- for (i = 2; i < nSegment; i++) {
- for (j = 0; j < nSegment; j++) {
- deviation[i][j] = CwLnx_segment_diff(i, j);
- }
- }
-
- while (nSegment > CHARS + 2) {
- min = 65535;
- pack_i = -1;
- pack_j = -1;
- for (i = 2; i < nSegment; i++) {
- if (pass1 && Segment[i].used)
- continue;
- for (j = 0; j < nSegment; j++) {
- if (deviation[i][j] < min) {
- min = deviation[i][j];
- pack_i = i;
- pack_j = j;
- }
- }
- }
- if (pack_i == -1) {
- if (pass1) {
- pass1 = 0;
- continue;
- } else {
- error("Cwlinux: unable to compact bar characters");
- nSegment = CHARS;
- break;
- }
- }
-
- nSegment--;
- Segment[pack_i] = Segment[nSegment];
-
- for (i = 0; i < nSegment; i++) {
- deviation[pack_i][i] = deviation[nSegment][i];
- deviation[i][pack_i] = deviation[i][nSegment];
- }
-
- for (r = 0; r < Lcd.rows; r++) {
- for (c = 0; c < Lcd.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;
- }
- }
- }
- }
-}
-
-void CwLnx_set_char(int n, char *dat)
+static void CwLnx_set_char(int n, char *dat)
{
int row, col;
char letter;
for (row = 0; row < Lcd.rows; row++) {
for (col = 0; col < Lcd.cols; col++) {
Txt[row][col] = '\t';
- Bar[row][col].len1 = -1;
- Bar[row][col].len2 = -1;
- Bar[row][col].type = 0;
- Bar[row][col].segment = -1;
}
}
+
+ bar_clear();
+
Clear_Screen(Device);
return 0;
}
if (Device == -1)
return -1;
+ bar_init(Lcd.rows, Lcd.cols, XRES, YRES, CHARS);
+ bar_add_segment( 0, 0,255, 32); // ASCII 32 = blank
+ bar_add_segment(255,255,255,255); // ASCII 255 = block
+
CwLnx_clear();
CwLnx_contrast();
int CwLnx_bar(int type, int row, int col, int max, int len1, int len2)
{
- int rev = 0;
-
- if (len1 < 1)
- len1 = 1;
- else if (len1 > max)
- len1 = max;
-
- if (len2 < 1)
- len2 = 1;
- else if (len2 > max)
- len2 = max;
-
- switch (type) {
- case BAR_L:
- len1 = max - len1;
- len2 = max - len2;
- rev = 1;
-
- case BAR_R:
- while (max > 0 && col < Lcd.cols) {
- Bar[row][col].type = type;
- Bar[row][col].segment = -1;
- if (len1 >= XRES) {
- Bar[row][col].len1 = rev ? 0 : XRES;
- len1 -= XRES;
- } else {
- Bar[row][col].len1 = rev ? XRES - len1 : len1;
- len1 = 0;
- }
- if (len2 >= XRES) {
- Bar[row][col].len2 = rev ? 0 : XRES;
- len2 -= XRES;
- } else {
- Bar[row][col].len2 = rev ? XRES - len2 : len2;
- len2 = 0;
- }
- max -= XRES;
- col++;
- }
- break;
-
- case BAR_U:
- len1 = max - len1;
- len2 = max - len2;
- rev = 1;
-
- case BAR_D:
- while (max > 0 && row < Lcd.rows) {
- Bar[row][col].type = type;
- Bar[row][col].segment = -1;
- if (len1 >= YRES) {
- Bar[row][col].len1 = rev ? 0 : YRES;
- len1 -= YRES;
- } else {
- Bar[row][col].len1 = rev ? YRES - len1 : len1;
- len1 = 0;
- }
- if (len2 >= YRES) {
- Bar[row][col].len2 = rev ? 0 : YRES;
- len2 -= YRES;
- } else {
- Bar[row][col].len2 = rev ? YRES - len2 : len2;
- len2 = 0;
- }
- max -= YRES;
- row++;
- }
- break;
-
- }
- return 0;
+ return bar_draw (type, row, col, max, len1, len2);
}
int CwLnx_flush(void)
{
char buffer[256];
char *p;
- int s, row, col;
-
- CwLnx_process_bars();
- CwLnx_compact_bars();
- CwLnx_define_chars();
+ int c, row, col;
- for (s = 0; s < nSegment; s++) {
- Segment[s].used = 0;
- }
+ bar_process(CwLnx_define_char);
for (row = 0; row < Lcd.rows; row++) {
for (col = 0; col < Lcd.cols; col++) {
- s = Bar[row][col].segment;
- if (s != -1) {
- Segment[s].used = 1;
- Txt[row][col] = Segment[s].ascii;
+ c=bar_peek(row, col);
+ if (c!=-1) {
+ Txt[row][col]=(char)c;
}
}
Set_Insert(Device, row, col);
}
LCD Cwlinux[] = {
- {"CW12232", 4, 20, XRES, YRES, BARS, 0, CwLnx_init, CwLnx_clear, \
- CwLnx_put, CwLnx_bar, NULL, CwLnx_flush, CwLnx_quit},
+ {name: "CW12232",
+ rows: 4,
+ cols: 20,
+ xres: XRES,
+ yres: YRES,
+ bars: BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2,
+ gpos: 0,
+ init: CwLnx_init,
+ clear: CwLnx_clear,
+ put: CwLnx_put,
+ bar: CwLnx_bar,
+ gpo: NULL,
+ flush: CwLnx_flush,
+ quit: CwLnx_quit
+ },
{NULL}
};
projects / lcd4linux.git / commitdiff