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Tasmota/tasmota/xdsp_17_universal.ino

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/*
xdsp_17_universal.ino - universal display driver support for Tasmota
Copyright (C) 2021 Gerhard Mutz and Theo Arends
This program 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 3 of the License, or
(at your option) any later version.
This program 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_DISPLAY
#ifdef USE_UNIVERSAL_DISPLAY
#define XDSP_17 17
#include <uDisplay.h>
uDisplay *udisp;
bool udisp_init_done = false;
extern uint8_t color_type;
extern uint16_t fg_color;
extern uint16_t bg_color;
#ifdef USE_UFILESYS
extern FS *ufsp;
#endif
#define DISPDESC_SIZE 1000
#define DSP_ROM_DESC
/*********************************************************************************************/
#ifdef DSP_ROM_DESC
/* sample descriptor */
const char DSP_SAMPLE_DESC[] PROGMEM =
// name,xs,ys,bpp,interface, (HEX) address, scl,sda,reset
// '*' means take pin number from tasmota
":H\n"
"SH1106,128,64,1,I2C,3c,*,*,*\n"
// splash settings, font, size, fgcol, bgcol, x,y
":S\n"
"0,1,1,0,40,20\n"
// init register settings, must be in HEX
":I\n"
"AE\n"
"D5,80\n"
"A8,3f\n"
"D3,00\n"
"40\n"
"8D,14\n"
"20,00\n"
"A1\n"
"C8\n"
"DA,12\n"
"81,CF\n"
"D9F1\n"
"DB,40\n"
"A4\n"
"A6\n"
"AF\n"
// switch display off
":o\n"
"AE\n"
// switch display on
":O\n"
"AF\n"
"#\n";
#endif // DSP_ROM_DESC
/*********************************************************************************************/
void Init_uDisp(void) {
char *ddesc = 0;
char *fbuff;
if (TasmotaGlobal.gpio_optiona.udisplay_driver) {
Settings.display_model = XDSP_17;
fg_color = 1;
bg_color = 0;
color_type = COLOR_BW;
fbuff = (char*)calloc(DISPDESC_SIZE, 1);
if (!fbuff) return;
#ifdef USE_UFILESYS
if (ufsp && !TasmotaGlobal.no_autoexec) {
File fp;
fp = ufsp->open("/dispdesc.txt", "r");
if (fp > 0) {
uint32_t size = fp.size();
fp.read((uint8_t*)fbuff, size);
fp.close();
ddesc = fbuff;
AddLog(LOG_LEVEL_INFO, PSTR("DSP: File descriptor used"));
}
}
#endif
#ifdef USE_SCRIPT
if (bitRead(Settings.rule_enabled, 0) && !ddesc) {
uint8_t dfound = Run_Scripter(">d",-2,0);
if (dfound == 99) {
char *lp = glob_script_mem.section_ptr + 2;
while (*lp != '\n') lp++;
memcpy(fbuff, lp + 1, DISPDESC_SIZE - 1);
ddesc = fbuff;
AddLog(LOG_LEVEL_INFO, PSTR("DSP: Script descriptor used"));
}
}
#endif // USE_SCRIPT
#ifdef DSP_ROM_DESC
if (!ddesc) {
memcpy_P(fbuff, DSP_SAMPLE_DESC, sizeof(DSP_SAMPLE_DESC));
ddesc = fbuff;
AddLog(LOG_LEVEL_INFO, PSTR("DSP: Flash descriptor used"));
}
#endif // DSP_ROM_DESC
if (!ddesc) {
AddLog(LOG_LEVEL_INFO, PSTR("DSP: No valid descriptor found"));
if (fbuff) free(fbuff);
return;
}
// now replace tasmota vars before passing to driver
char *cp = strstr(ddesc, "I2C");
if (cp) {
cp += 4;
//,3c,22,21,-1
// i2c addr
//if (*cp == '*') {
// Settings.display_address
//}
uint8_t i2caddr = strtol(cp, 0, 16);
if (I2cSetDevice(i2caddr)) {
I2cSetActiveFound(i2caddr, "DSP-I2C");
}
cp+=3;
//replacepin(&cp, Settings.display_address);
replacepin(&cp, Pin(GPIO_I2C_SCL));
replacepin(&cp, Pin(GPIO_I2C_SDA));
replacepin(&cp, Pin(GPIO_OLED_RESET));
}
cp = strstr(ddesc, "SPI");
if (cp) {
cp += 4;
//; 7 params nr,cs,sclk,mosi,dc,bl,reset,miso
//SPI,*,*,*,*,*,*,*
if (*cp == '1') {
cp+=2;
replacepin(&cp, Pin(GPIO_SPI_CS));
replacepin(&cp, Pin(GPIO_SPI_CLK));
replacepin(&cp, Pin(GPIO_SPI_MOSI));
replacepin(&cp, Pin(GPIO_SPI_DC));
replacepin(&cp, Pin(GPIO_BACKLIGHT));
replacepin(&cp, Pin(GPIO_OLED_RESET));
replacepin(&cp, Pin(GPIO_SPI_MISO));
} else {
// soft spi pins
cp+=2;
replacepin(&cp, Pin(GPIO_SSPI_CS));
replacepin(&cp, Pin(GPIO_SSPI_SCLK));
replacepin(&cp, Pin(GPIO_SSPI_MOSI));
replacepin(&cp, Pin(GPIO_SSPI_DC));
replacepin(&cp, Pin(GPIO_BACKLIGHT));
replacepin(&cp, Pin(GPIO_OLED_RESET));
replacepin(&cp, Pin(GPIO_SSPI_MISO));
}
}
// init renderer
if (udisp) delete udisp;
udisp = new uDisplay(ddesc);
/*
File fp;
fp = ufsp->open("/dump.txt", "w");
fp.write(ddesc, DISPDESC_SIZE);
fp.close();
*/
// release desc buffer
if (fbuff) free(fbuff);
renderer = udisp->Init();
if (!renderer) return;
Settings.display_width = renderer->width();
Settings.display_height = renderer->height();
fg_color = udisp->fgcol();
bg_color = udisp->bgcol();
renderer->DisplayInit(DISPLAY_INIT_MODE, Settings.display_size, Settings.display_rotate, Settings.display_font);
#ifdef SHOW_SPLASH
udisp->Splash();
#endif
udisp_init_done = true;
AddLog(LOG_LEVEL_INFO, PSTR("DSP: %s!"), udisp->devname());
}
}
/*********************************************************************************************/
void replacepin(char **cp, uint16_t pin) {
char *lp = *cp;
if (*lp == ',') lp++;
if (*lp == '*') {
char val[8];
itoa(pin, val, 10);
uint16_t slen = strlen(val);
//AddLog(LOG_LEVEL_INFO, PSTR("replace pin: %d"), pin);
memmove(lp + slen, lp + 1, strlen(lp));
memmove(lp, val, slen);
}
char *np = strchr(lp, ',');
if (np) {
*cp = np + 1;
}
}
#ifdef USE_DISPLAY_MODES1TO5
void UDISP_PrintLog(void)
{
disp_refresh--;
if (!disp_refresh) {
disp_refresh = Settings.display_refresh;
if (!disp_screen_buffer_cols) { DisplayAllocScreenBuffer(); }
char* txt = DisplayLogBuffer('\370');
if (txt != NULL) {
uint8_t last_row = Settings.display_rows -1;
renderer->clearDisplay();
renderer->setTextSize(Settings.display_size);
renderer->setCursor(0,0);
for (byte i = 0; i < last_row; i++) {
strlcpy(disp_screen_buffer[i], disp_screen_buffer[i +1], disp_screen_buffer_cols);
renderer->println(disp_screen_buffer[i]);
}
strlcpy(disp_screen_buffer[last_row], txt, disp_screen_buffer_cols);
DisplayFillScreen(last_row);
AddLog(LOG_LEVEL_DEBUG, PSTR(D_LOG_DEBUG "[%s]"), disp_screen_buffer[last_row]);
renderer->println(disp_screen_buffer[last_row]);
renderer->Updateframe();
}
}
}
void UDISP_Time(void)
{
char line[12];
renderer->clearDisplay();
renderer->setTextSize(Settings.display_size);
renderer->setTextFont(Settings.display_font);
renderer->setCursor(0, 0);
snprintf_P(line, sizeof(line), PSTR(" %02d" D_HOUR_MINUTE_SEPARATOR "%02d" D_MINUTE_SECOND_SEPARATOR "%02d"), RtcTime.hour, RtcTime.minute, RtcTime.second); // [ 12:34:56 ]
renderer->println(line);
renderer->println();
snprintf_P(line, sizeof(line), PSTR("%02d" D_MONTH_DAY_SEPARATOR "%02d" D_YEAR_MONTH_SEPARATOR "%04d"), RtcTime.day_of_month, RtcTime.month, RtcTime.year); // [01-02-2018]
renderer->println(line);
renderer->Updateframe();
}
void UDISP_Refresh(void) // Every second
{
if (!renderer) return;
if (Settings.display_mode) { // Mode 0 is User text
switch (Settings.display_mode) {
case 1: // Time
UDISP_Time();
break;
case 2: // Local
case 3: // Local
case 4: // Mqtt
case 5: // Mqtt
UDISP_PrintLog();
break;
}
}
}
#endif // USE_DISPLAY_MODES1TO5
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdsp17(uint8_t function)
{
bool result = false;
if (FUNC_DISPLAY_INIT_DRIVER == function) {
Init_uDisp();
}
else if (udisp_init_done && (XDSP_17 == Settings.display_model)) {
switch (function) {
case FUNC_DISPLAY_MODEL:
result = true;
break;
#ifdef USE_DISPLAY_MODES1TO5
case FUNC_DISPLAY_EVERY_SECOND:
UDISP_Refresh();
break;
#endif // USE_DISPLAY_MODES1TO5
}
}
return result;
}
#endif // USE_UNIVERSAL_DISPLAY
#endif // USE_DISPLAY
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