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-rwxr-xr-xdrv_D4D.c98
1 files changed, 60 insertions, 38 deletions
diff --git a/drv_D4D.c b/drv_D4D.c
index 3fd4601..5f7f49f 100755
--- a/drv_D4D.c
+++ b/drv_D4D.c
@@ -1,7 +1,7 @@
/* $Id: drv_D4D.c 840 2007-09-09 12:17:42Z michael $
* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_D4D.c $
*
- * lcd4linux driver for 4D Systems serial displays
+ * LCD4Linux driver for 4D Systems Display Graphics Modules
*
* Copyright (C) 2008 Sven Killig <sven@killig.de>
* Modified from sample code by:
@@ -104,7 +104,7 @@ static int drv_D4D_open(const char *section)
fd = drv_generic_serial_open(section, Name, 0);
if (fd < 0)
return -1;
- fcntl(fd, F_SETFL, 0);
+ fcntl(fd, F_SETFL, 0); /* blocking read */
return 0;
}
@@ -119,10 +119,8 @@ static int drv_D4D_close(void)
static void drv_D4D_receive_ACK()
{
char ret[1];
- while (drv_generic_serial_read(ret, sizeof(ret)) != 1) {
- usleep(1); /* loop should be unneccessary */
- }
- /* drv_generic_serial_poll(ret,1); */
+ while (drv_generic_serial_read(ret, sizeof(ret)) != 1)
+ usleep(1); /* loop should be unneccessary */
if (ret[0] == 0x15) {
error("NAK!");
} else if (ret[0] != 6) {
@@ -143,6 +141,7 @@ static void drv_D4D_send(const char *data, const unsigned int len)
static void drv_D4D_send_nowait_extra(const char *data, const unsigned int len, unsigned char pos1, unsigned char pos2)
{
+ /* possibly leave out bytes at pos1 and pos2 for older protocol format */
if (EXTRA) {
drv_D4D_send_nowait(data, len);
} else {
@@ -181,7 +180,7 @@ static void drv_D4D_write(const int row, const int col, const char *data, int le
int user_y[len];
int i, k = 0;
- if (!SECTOR) {
+ if (!SECTOR) { /* font in ROM */
for (i = 0; i < len; i++) {
if (data[i] >= 31 && data[i] < CHAR0) {
@@ -205,7 +204,7 @@ static void drv_D4D_write(const int row, const int col, const char *data, int le
}
}
- char cmd[] = { 's', col, row, FONT, msb(FG_COLOR), lsb(FG_COLOR) };
+ char cmd[] = { 's', col, row, FONT, msb(FG_COLOR), lsb(FG_COLOR) }; /* normal chars */
drv_D4D_send_nowait(cmd, sizeof(cmd));
if (len > 256)
len = 256;
@@ -214,7 +213,7 @@ static void drv_D4D_write(const int row, const int col, const char *data, int le
cmdNull[0] = 0;
drv_D4D_send(cmdNull, 1);
- char cmd_user[] = { 'D', 0, 0, 0, 0, 0, msb(FG_COLOR), lsb(FG_COLOR) };
+ char cmd_user[] = { 'D', 0, 0, 0, 0, 0, msb(FG_COLOR), lsb(FG_COLOR) }; /* user defined symbols */
for (i = 0; i < k; i++) {
cmd_user[2] = user_char[i];
cmd_user[3] = user_x[i];
@@ -222,7 +221,7 @@ static void drv_D4D_write(const int row, const int col, const char *data, int le
cmd_user[5] = lsb(user_y[i]);
drv_D4D_send_extra(cmd_user, sizeof(cmd_user), 1, 4);
}
- } else {
+ } else { /* font on SD card */
int sec;
char cmd_sd[] = { '@', 'I', 0, msb(row * YRES), lsb(row * YRES), XRES, msb(YRES), lsb(YRES), 16, 0, 0, 0 };
for (i = 0; i < len; i++) {
@@ -239,7 +238,7 @@ static void drv_D4D_write(const int row, const int col, const char *data, int le
static void drv_D4D_defchar(const int ascii, const unsigned char *matrix)
{
- /* error("drv_D4D_defchar"); */
+/* error("drv_D4D_defchar"); */
char cmd[11];
int i;
@@ -256,13 +255,14 @@ static void drv_D4D_defchar(const int ascii, const unsigned char *matrix)
static void drv_D4D_blit(const int row, const int col, const int height, const int width)
{
- /* error("drv_D4D_blit(%i, %i, %i, %i)",row, col, height, width); */
+/* error("drv_D4D_blit(%i, %i, %i, %i)",row, col, height, width); */
int r, c;
RGBA rgb, pixel0_0, pixel;
short int color;
char colorArray[2];
+ /* optimization: single colour rectangle? */
pixel0_0 = drv_generic_graphic_rgb(0, 0);
char unicolor = 1;
for (r = row; r < row + height; r++) {
@@ -296,12 +296,12 @@ static void drv_D4D_blit(const int row, const int col, const int height, const i
} else {
color = RGB_24to16(rgb.R, rgb.G, rgb.B);
colorArray[0] = msb(color);
- drv_D4D_send_nowait(colorArray, 1); /* doesn't work if sent together (error: "partial write(/dev/tts/1): len=2 ret=1") */
+ drv_D4D_send_nowait(colorArray, 1); /* doesn't werk if sent together (error: "partial write(/dev/tts/1): len=2 ret=1") */
/* colorArray[1]=lsb(color); */
colorArray[0] = lsb(color);
drv_D4D_send_nowait(colorArray, 1);
}
- /* drv_D4D_send_nowait(colorArray, MODE/8); */
+/* drv_D4D_send_nowait(colorArray, MODE/8); */
}
}
drv_D4D_receive_ACK();
@@ -319,14 +319,14 @@ static int drv_D4D_contrast(int contrast)
char cmd[] = { 'Y', 2, contrast };
drv_D4D_send(cmd, sizeof(cmd));
- /* CONTRAST_ = contrast; */
+ /* CONTRAST_=contrast; */
return contrast;
}
static int drv_D4D_start(const char *section)
{
- info("drv_D4D_start()");
+ /* error("drv_D4D_start()"); */
int contrast;
int xres_cfg = -1, yres_cfg = -1;
char *s;
@@ -354,7 +354,7 @@ static int drv_D4D_start(const char *section)
int res[2];
int i;
for (i = 0; i < 2; i++) {
- switch (answer[3 + i]) {
+ switch ((unsigned char) answer[3 + i]) {
case 0x22:
res[i] = 220;
break;
@@ -374,14 +374,15 @@ static int drv_D4D_start(const char *section)
case 0x76:
res[i] = 176;
break;
- case 0x96: /* Fixme: case label value exceeds maximum value for type */
+ case 0x96:
res[i] = 96;
break;
case 0x24:
- res[i] = 240; /* undocumented? */
- break;
+ res[i] = 240;
+ break; /* undocumented? */
default:
- error ("Fixme");
+ error("Can't detect display dimensions!");
+ return -1;
}
}
DCOLS = res[0];
@@ -401,7 +402,7 @@ static int drv_D4D_start(const char *section)
return -1;
}
- if (yres_cfg == -1) {
+ if (yres_cfg == -1) { /* font on SD card */
SECTOR = xres_cfg * 512;
char setAddress[] =
{ '@', 'A', address_mmsb(SECTOR), address_mlsb(SECTOR), address_lmsb(SECTOR), address_llsb(SECTOR) };
@@ -441,9 +442,19 @@ static int drv_D4D_start(const char *section)
DCOLS = DCOLS / XRES;
DROWS = DROWS / YRES;
- switch (yres_cfg) {
- case 8:
- FONT = 1;
+ switch (yres_cfg) { /* font in ROM */
+ case 8: /* FONT=1; break; */
+ switch (xres_cfg) {
+ case 6:
+ FONT = 0;
+ break;
+ case 8:
+ FONT = 1;
+ break;
+ default:
+ error("%s: unknown width in %s.Font '%s' from %s", Name, section, s, cfg_source());
+ return -1;
+ };
break;
case 12:
FONT = 2;
@@ -451,13 +462,17 @@ static int drv_D4D_start(const char *section)
case 16:
FONT = 3;
break;
+ case -1:
+ break;
+ default:
+ error("%s: unknown height in %s.Font '%s' from %s", Name, section, s, cfg_source());
+ return -1;
}
- if (xres_cfg == 5)
- FONT = 0;
+ /* if(xres_cfg==6) FONT=0; */
}
- printf("XRES=%i; YRES=%i, DCOLS=%i; DROWS=%d; FONT=%d; SECTOR=%i; SECTOR_SIZE=%i\n", XRES, YRES, DCOLS, DROWS, FONT,
- SECTOR, SECTOR_SIZE);
+ info("XRES=%i, YRES=%i; DCOLS=%i, DROWS=%d; FONT=%d, SECTOR=%i, SECTOR_SIZE=%i\n", XRES, YRES, DCOLS, DROWS,
+ FONT, SECTOR, SECTOR_SIZE);
@@ -466,7 +481,8 @@ static int drv_D4D_start(const char *section)
char powerOn[] = { 'Y', 3, 1 };
drv_D4D_send(powerOn, sizeof(powerOn));
- /* char background[] = {'B', msb(BG_COLOR), lsb(BG_COLOR)};
+ /*! */
+ /*char background[] = {'B', msb(BG_COLOR), lsb(BG_COLOR)};
drv_D4D_send(background, sizeof(background)); */
}
@@ -478,7 +494,7 @@ static int drv_D4D_start(const char *section)
if (!MODE) {
- unsigned char buffer[] = { 0x18, 0x24, 0x24, 0x18, 0, 0, 0, 0 }; /* degree */
+ unsigned char buffer[] = { 0x18, 0x24, 0x24, 0x18, 0, 0, 0, 0 }; /* degree */
drv_D4D_defchar(CHAR0, buffer);
CHARS--;
CHAR0++;
@@ -510,9 +526,13 @@ int drv_D4D_text_draw(WIDGET * W)
}
-int lastVal[48 * 40 * 2]; /* MAX_WIDGETS*2 */
+int lastVal[48 * 40 * 2]; /* ToDo: MAX_WIDGETS*2 */
int drv_D4D_bar_draw(WIDGET * W)
{
+ /* optimizations:
+ - draw filled rectangles instead of user defined bar characters
+ - cache last values */
+
WIDGET_BAR *Bar = W->data;
int row, col, len, res, max, val1, val2;
DIRECTION dir;
@@ -552,16 +572,18 @@ int drv_D4D_bar_draw(WIDGET * W)
val[0] = val1;
val[1] = val2;
int i, vals;
- if (val1 == val2 && lastVal[row * DCOLS + col] == lastVal[row * DCOLS + col + DROWS * DCOLS])
+ int lastValIndex0 = row * DCOLS + col;
+ int cells = DROWS * DCOLS;
+ if (val1 == val2 && lastVal[lastValIndex0] == lastVal[lastValIndex0 + cells])
vals = 1;
else
vals = 2;
for (i = 0; i < vals; i++) {
- int lastValIndex = row * DCOLS + col + DROWS * DCOLS * (i + 1);
+ int lastValIndex = lastValIndex0 + cells * (i /*+1 */ );
int y1 = row * YRES + (YRES / 2) * i;
cmd[2] = msb(y1);
cmd[3] = lsb(y1);
- int y2 = y1 + (YRES) / vals - 1; /* YRES-1 */
+ int y2 = y1 + (YRES /*-1*/ ) / vals - 1;
cmd[5] = msb(y2);
cmd[6] = lsb(y2);
if (val[i] > lastVal[lastValIndex]) {
@@ -624,7 +646,7 @@ static void plugin_contrast(RESULT * result, RESULT * arg1)
int drv_D4D_list(void)
{
- printf("4D Systems serial displays");
+ printf("4D Systems Display Graphics Modules");
return 0;
}
@@ -689,7 +711,6 @@ int drv_D4D_init(const char *section, const int quiet)
return ret;
drv_generic_text_bar_add_segment(0, 0, 255, 32);
- /* drv_generic_text_bar_add_segment(255, 255, 255, 31); */ /* ASCII 255 = block */
wc = Widget_Text;
@@ -714,7 +735,7 @@ int drv_D4D_init(const char *section, const int quiet)
int drv_D4D_quit(const int quiet)
{
- error("drv_D4D_quit()");
+ /* error("drv_D4D_quit()"); */
info("%s: shutting down.", Name);
@@ -733,6 +754,7 @@ int drv_D4D_quit(const int quiet)
drv_generic_text_greet("goodbye!", NULL);
}
+ /* fade */
/*int i;
for(i=CONTRAST_;i>=0;i--) {
drv_D4D_contrast(i);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 21:08:37 +0000