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7318d07f8950d3469d76537ce1d96f863085ba7c
archived-lcd4linux/drv_D4D.c
michael 7318d07f89 various compiler warnings fixed 
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1153 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
2011-07-27 05:12:30 +00:00

783 lines
18 KiB
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/* $Id$
* $URL$
*
* LCD4Linux driver for 4D Systems Display Graphics Modules
*
* Copyright (C) 2008 Sven Killig <sven@killig.de>
* Modified from sample code by:
* Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* This file is part of LCD4Linux.
*
* LCD4Linux is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* LCD4Linux is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
*
* exported fuctions:
*
* struct DRIVER drv_D4D
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <termios.h>
#include <fcntl.h>
#include <math.h>
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "udelay.h"
#include "plugin.h"
#include "widget.h"
#include "widget_text.h"
#include "widget_icon.h"
#include "widget_bar.h"
#include "drv.h"
#include "drv_generic_text.h"
#include "drv_generic_graphic.h"
#include "drv_generic_serial.h"
static char Name[] = "D4D";
char NAME_[20];
int FONT = 1, MODE = 0, EXTRA = 0, SECTOR = 0, SECTOR_SIZE, NOPOWERCYCLE = 0;
/* int CONTRAST_; */
#define address_mmsb(variable) ((variable >> 24) & 0xFF)
#define address_mlsb(variable) ((variable >> 16) & 0xFF)
#define address_lmsb(variable) ((variable >> 8) & 0xFF)
#define address_llsb(variable) (variable & 0xFF)
#define address_hi(variable) ((variable >> 16) & 0xFF)
#define address_mid(variable) ((variable >> 8) & 0xFF)
#define address_lo(variable) (variable & 0xFF)
#define msb(variable) ((variable >> 8) & 0xFF)
#define lsb(variable) (variable & 0xFF)
RGBA FG_COL_ = {.R = 0x00,.G = 0x00,.B = 0x00,.A = 0xff };
RGBA BG_COL_ = {.R = 0xff,.G = 0xff,.B = 0xff,.A = 0xff };
short int FG_COLOR, BG_COLOR;
int RGB_24to16(int red, int grn, int blu)
{
return (((red >> 3) << 11) | ((grn >> 2) << 5) | (blu >> 3));
}
int RGB_24to8(int red, int grn, int blu)
{
return (((red >> 5) << 5) | ((grn >> 5) << 2) | (blu >> 6));
}
/****************************************/
/*** hardware dependant functions ***/
/****************************************/
static int drv_D4D_open(const char *section)
{
int fd;
fd = drv_generic_serial_open(section, Name, 0);
if (fd < 0)
return -1;
fcntl(fd, F_SETFL, 0); /* blocking read */
return 0;
}
static int drv_D4D_close(void)
{
drv_generic_serial_close();
return 0;
}
static void drv_D4D_receive_ACK()
{
char 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) {
error("no ACK!");
}
}
static void drv_D4D_send_nowait(const char *data, const unsigned int len)
{
drv_generic_serial_write(data, len);
}
static void drv_D4D_send(const char *data, const unsigned int len)
{
drv_D4D_send_nowait(data, len);
drv_D4D_receive_ACK();
}
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 {
unsigned int i;
char send[1];
for (i = 0; i < len; i++) {
if (!pos1 || i != pos1) {
if (!pos2 || i != pos2) {
send[0] = data[i];
drv_generic_serial_write(send, 1);
}
}
}
}
}
static void drv_D4D_send_extra(const char *data, const unsigned int len, char pos1, char pos2)
{
drv_D4D_send_nowait_extra(data, len, pos1, pos2);
drv_D4D_receive_ACK();
}
static void drv_D4D_clear(void)
{
char cmd[] = { 'E' };
drv_D4D_send(cmd, sizeof(cmd));
}
static void drv_D4D_write(const int row, const int col, const char *data, int len)
{
char out[len];
char user_char[len];
int user_x[len];
int user_y[len];
int i, k = 0;
if (!SECTOR) { /* font in ROM */
for (i = 0; i < len; i++) {
if (data[i] >= 31 && data[i] < CHAR0) {
out[i] = data[i];
} else if (data[i] == '<EFBFBD>') { /* mu */
if (FONT == 2)
out[i] = 31; /* undocumented */
else if (FONT == 0)
out[i] = 'u';
else
out[i] = 127; /* undocumented */
} else {
out[i] = ' ';
if (data[i] == '<EFBFBD>')
user_char[k] = 0; /* degree */
else
user_char[k] = data[i] - CHAR0;
user_x[k] = (col + i) * XRES;
user_y[k] = row * YRES;
k++;
}
}
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;
drv_D4D_send_nowait(out, len);
char cmdNull[1];
cmdNull[0] = 0;
drv_D4D_send(cmdNull, 1);
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];
cmd_user[4] = msb(user_y[i]);
cmd_user[5] = lsb(user_y[i]);
drv_D4D_send_extra(cmd_user, sizeof(cmd_user), 1, 4);
}
} 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++) {
cmd_sd[2] = (col + i) * XRES;
sec = SECTOR + (unsigned char) data[i] * SECTOR_SIZE;
cmd_sd[9] = address_hi(sec);
cmd_sd[10] = address_mid(sec);
cmd_sd[11] = address_lo(sec);
drv_D4D_send_extra(cmd_sd, sizeof(cmd_sd), 3, 6);
}
}
}
static void drv_D4D_defchar(const int ascii, const unsigned char *matrix)
{
/* error("drv_D4D_defchar"); */
char cmd[11];
int i;
cmd[0] = 'A';
cmd[1] = 0;
cmd[2] = ascii - CHAR0;
for (i = 0; i < 8; i++) {
cmd[i + 3] = *matrix++;
}
drv_D4D_send_extra(cmd, sizeof(cmd), 1, 0);
}
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); */
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++) {
if (!unicolor)
break;
for (c = col; c < col + width; c++) {
if (!unicolor)
break;
pixel = drv_generic_graphic_rgb(r, c);
if (pixel0_0.R != pixel.R || pixel0_0.G != pixel.G || pixel0_0.B != pixel.B || pixel0_0.A != pixel.A)
unicolor = 0;
}
}
if (unicolor) {
color = RGB_24to16(pixel0_0.R, pixel0_0.G, pixel0_0.B);
char row2 = row + height - 1;
char cmdRect[] =
{ 'r', col, msb(row), lsb(row), col + width - 1, msb(row2), lsb(row2), msb(color), lsb(color) };
drv_D4D_send_extra(cmdRect, sizeof(cmdRect), 2, 5);
} else {
char cmd[] = { 'I', col, msb(row), lsb(row), width, msb(height), lsb(height), MODE };
drv_D4D_send_nowait_extra(cmd, sizeof(cmd), 2, 5);
for (r = row; r < row + height; r++) {
for (c = col; c < col + width; c++) {
rgb = drv_generic_graphic_rgb(r, c);
if (MODE == 8) {
colorArray[0] = RGB_24to8(rgb.R, rgb.G, rgb.B);
drv_D4D_send_nowait(colorArray, 1);
} else {
color = RGB_24to16(rgb.R, rgb.G, rgb.B);
colorArray[0] = msb(color);
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_receive_ACK();
}
}
static int drv_D4D_contrast(int contrast)
{
if (contrast < 0)
contrast = 0;
if (contrast > 15)
contrast = 15;
char cmd[] = { 'Y', 2, contrast };
drv_D4D_send(cmd, sizeof(cmd));
/* CONTRAST_=contrast; */
return contrast;
}
static int drv_D4D_start(const char *section)
{
/* error("drv_D4D_start()"); */
int contrast;
int xres_cfg = -1, yres_cfg = -1;
char *s;
char *color;
if (drv_D4D_open(section) < 0) {
return -1;
}
char cmd[] = { 'U' };
drv_D4D_send(cmd, sizeof(cmd));
char getVersion[] = { 'V', 0 };
drv_D4D_send_nowait(getVersion, sizeof(getVersion));
char answer[5];
drv_generic_serial_read(answer, sizeof(answer));
char *ids[] = { "uOLED", "uLCD", "uVGA" };
char *id;
if (answer[0] <= 2)
id = ids[(int) answer[0]];
else
id = "Unknown";
qprintf(NAME_, sizeof(NAME_), "%s H%u S%u", id, (int) answer[1], (int) answer[2]);
int res[2];
int i;
for (i = 0; i < 2; i++) {
switch ((unsigned char) answer[3 + i]) {
case 0x22:
res[i] = 220;
break;
case 0x28:
res[i] = 128;
break;
case 0x32:
res[i] = 320;
EXTRA = 1;
break;
case 0x60:
res[i] = 160;
break;
case 0x64:
res[i] = 64;
break;
case 0x76:
res[i] = 176;
break;
case 0x96:
res[i] = 96;
break;
case 0x24: /* undocumented? */
res[i] = 240;
break;
default:
error("Can't detect display dimensions!");
return -1;
}
}
DCOLS = res[0];
DROWS = res[1];
cfg_number(section, "Mode", 0, 0, 16, &MODE);
s = cfg_get(section, "Font", NULL);
if (s == NULL || *s == '\0') {
error("%s: no '%s.Font' entry from %s", Name, section, cfg_source());
return -1;
}
if (sscanf(s, "%dx%d", &xres_cfg, &yres_cfg) < 1 || xres_cfg < 0) {
error("%s: bad %s.Font '%s' from %s", Name, section, s, cfg_source());
free(s);
return -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) };
drv_D4D_send(setAddress, sizeof(setAddress));
char answer1[1];
char readByte[] = { '@', 'r' };
drv_D4D_send_nowait(readByte, sizeof(readByte));
drv_generic_serial_read(answer1, sizeof(answer1));
XRES = answer1[0];
drv_D4D_send_nowait(readByte, sizeof(readByte));
drv_generic_serial_read(answer1, sizeof(answer1));
YRES = answer1[0];
SECTOR = xres_cfg + 1;
SECTOR_SIZE = ceil((double) XRES * (double) YRES * 2.0 / 512.0);
} else {
XRES = xres_cfg;
YRES = yres_cfg;
}
if (MODE == 0) {
color = cfg_get(section, "foreground", "ffffff");
if (color2RGBA(color, &FG_COL_) < 0) {
error("%s: ignoring illegal color '%s'", Name, color);
}
if (color)
free(color);
FG_COLOR = RGB_24to16(FG_COL_.R, FG_COL_.G, FG_COL_.B);
color = cfg_get(section, "background", "000000");
if (color2RGBA(color, &BG_COL_) < 0) {
error("%s: ignoring illegal color '%s'", Name, color);
}
if (color)
free(color);
BG_COLOR = RGB_24to16(BG_COL_.R, BG_COL_.G, BG_COL_.B);
DCOLS = DCOLS / XRES;
DROWS = DROWS / YRES;
switch (yres_cfg) { /* font in ROM */
case 8:
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;
break;
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;
}
}
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);
cfg_number(section, "NoPowerCycle", 0, 1, 65536, &NOPOWERCYCLE);
if (!NOPOWERCYCLE) {
char powerOn[] = { 'Y', 3, 1 };
drv_D4D_send(powerOn, sizeof(powerOn));
/*char background[] = {'B', msb(BG_COLOR), lsb(BG_COLOR)};
drv_D4D_send(background, sizeof(background)); */
}
char opaque[] = { 'O', 1 };
drv_D4D_send(opaque, sizeof(opaque));
char penSize[] = { 'p', 0 };
drv_D4D_send(penSize, sizeof(penSize));
if (!MODE) {
unsigned char buffer[] = { 0x18, 0x24, 0x24, 0x18, 0, 0, 0, 0 }; /* degree */
drv_D4D_defchar(CHAR0, buffer);
CHARS--;
CHAR0++;
}
if (cfg_number(section, "Contrast", 0, 0, 255, &contrast) > 0) {
drv_D4D_contrast(contrast);
}
drv_D4D_clear();
return 0;
}
int drv_D4D_text_draw(WIDGET * W)
{
short int FG_COLOR_old = FG_COLOR, BG_COLOR_old = BG_COLOR;
int ret;
RGBA fg, bg;
fg = W->fg_valid ? W->fg_color : FG_COL_;
bg = W->bg_valid ? W->bg_color : BG_COL_;
FG_COLOR = RGB_24to16(fg.R, fg.G, fg.B);
BG_COLOR = RGB_24to16(bg.R, bg.G, bg.B);
ret = drv_generic_text_draw(W);
FG_COLOR = FG_COLOR_old;
BG_COLOR = BG_COLOR_old;
return ret;
}
int lastVal[40 * 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;
#if 0
STYLE style; /* Fixme: unused variable */
#endif
row = W->row;
col = W->col;
dir = Bar->direction;
#if 0
style = Bar->style; /* Fixme: unused variable */
#endif
len = Bar->length;
res = dir & (DIR_EAST | DIR_WEST) ? XRES : YRES;
max = len * res;
val1 = Bar->val1 * (double) (max);
val2 = Bar->val2 * (double) (max);
if (val1 < 1)
val1 = 1;
else if (val1 > max)
val1 = max;
if (val2 < 1)
val2 = 1;
else if (val2 > max)
val2 = max;
short int FG_COLOR_old = FG_COLOR, BG_COLOR_old = BG_COLOR;
RGBA fg, bg;
fg = W->fg_valid ? W->fg_color : FG_COL_;
bg = W->bg_valid ? W->bg_color : BG_COL_;
FG_COLOR = RGB_24to16(fg.R, fg.G, fg.B);
BG_COLOR = RGB_24to16(bg.R, bg.G, bg.B);
char cmd[9];
cmd[0] = 'r';
int val[2];
val[0] = val1;
val[1] = val2;
int i, vals;
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 = 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;
cmd[5] = msb(y2);
cmd[6] = lsb(y2);
if (val[i] > lastVal[lastValIndex]) {
cmd[1] = col * XRES + lastVal[lastValIndex];
cmd[4] = cmd[1] + val[i] - lastVal[lastValIndex] - 1;
cmd[7] = msb(FG_COLOR);
cmd[8] = lsb(FG_COLOR);
drv_D4D_send_extra(cmd, sizeof(cmd), 2, 5);
} else if (val[i] < lastVal[lastValIndex]) {
cmd[1] = col * XRES + val[i] - 1 + 1;
cmd[4] = cmd[1] + lastVal[lastValIndex] - val[i];
cmd[7] = msb(BG_COLOR);
cmd[8] = lsb(BG_COLOR);
drv_D4D_send_extra(cmd, sizeof(cmd), 2, 5);
}
lastVal[lastValIndex] = val[i];
}
FG_COLOR = FG_COLOR_old;
BG_COLOR = BG_COLOR_old;
return 0;
}
/****************************************/
/*** plugins ***/
/****************************************/
static void plugin_contrast(RESULT * result, RESULT * arg1)
{
double contrast;
contrast = drv_D4D_contrast(R2N(arg1));
SetResult(&result, R_NUMBER, &contrast);
}
/****************************************/
/*** widget callbacks ***/
/****************************************/
/* using drv_generic_text_draw(W) */
/* using drv_generic_text_icon_draw(W) */
/* using drv_generic_text_bar_draw(W) */
/* using drv_generic_gpio_draw(W) */
/****************************************/
/*** exported functions ***/
/****************************************/
int drv_D4D_list(void)
{
printf("4D Systems Display Graphics Modules");
return 0;
}
int drv_D4D_init(const char *section, const int quiet)
{
/* error("drv_D4D_init()"); */
WIDGET_CLASS wc;
int ret;
info("%s: %s", Name, "$Rev$");
if ((ret = drv_D4D_start(section)) != 0)
return ret;
if (EXTRA)
CHARS = 64;
else
CHARS = 32;
CHAR0 = 128;
GOTO_COST = 7;
if (MODE) {
drv_generic_graphic_real_blit = drv_D4D_blit;
} else {
drv_generic_text_real_write = drv_D4D_write;
drv_generic_text_real_defchar = drv_D4D_defchar;
}
if (!quiet) {
char buffer[40];
qprintf(buffer, sizeof(buffer), "%s %dx%d", NAME_, DCOLS, DROWS);
if (MODE) {
if (drv_generic_graphic_greet(buffer, "www.4dsystems.com.au")) {
sleep(3);
drv_generic_graphic_clear();
}
} else {
if (drv_generic_text_greet(buffer, "www.4dsystems.com.au")) {
sleep(3);
drv_D4D_clear();
}
}
}
if (MODE) {
if ((ret = drv_generic_graphic_init(section, Name)) != 0)
return ret;
} else {
if ((ret = drv_generic_text_init(section, Name)) != 0)
return ret;
if ((ret = drv_generic_text_icon_init()) != 0)
return ret;
if ((ret = drv_generic_text_bar_init(0)) != 0)
return ret;
drv_generic_text_bar_add_segment(0, 0, 255, 32);
wc = Widget_Text;
wc.draw = drv_D4D_text_draw;
widget_register(&wc);
wc = Widget_Icon;
wc.draw = drv_generic_text_icon_draw;
widget_register(&wc);
wc = Widget_Bar;
wc.draw = drv_D4D_bar_draw;
widget_register(&wc);
}
AddFunction("LCD::contrast", 1, plugin_contrast);
return 0;
}
int drv_D4D_quit(const int quiet)
{
/* error("drv_D4D_quit()"); */
info("%s: shutting down.", Name);
if (MODE == 0)
drv_generic_text_quit();
if (!NOPOWERCYCLE) {
drv_D4D_clear();
}
if (!quiet) {
if (MODE)
drv_generic_graphic_greet("goodbye!", NULL);
else
drv_generic_text_greet("goodbye!", NULL);
}
/* fade */
/*int i;
for(i=CONTRAST_;i>=0;i--) {
drv_D4D_contrast(i);
usleep(1000);
} */
if (MODE)
drv_generic_graphic_quit();
if (!NOPOWERCYCLE) {
char powerDown[] = { 'Y', 3, 0 };
drv_D4D_send(powerDown, sizeof(powerDown));
}
debug("closing connection");
drv_D4D_close();
return (0);
}
DRIVER drv_D4D = {
.name = Name,
.list = drv_D4D_list,
.init = drv_D4D_init,
.quit = drv_D4D_quit,
};
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