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Tasmota/lib/lib_display/UDisplay/uDisplay.cpp
gemu2015 4e17838917 universal display update
2021-04-14 14:26:59 +02:00

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/*
uDisplay.cpp - 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/>.
*/
#include <Arduino.h>
#include <Wire.h>
#include <SPI.h>
#include "uDisplay.h"
#define UDSP_DEBUG
const uint16_t udisp_colors[]={UDISP_BLACK,UDISP_WHITE,UDISP_RED,UDISP_GREEN,UDISP_BLUE,UDISP_CYAN,UDISP_MAGENTA,\
UDISP_YELLOW,UDISP_NAVY,UDISP_DARKGREEN,UDISP_DARKCYAN,UDISP_MAROON,UDISP_PURPLE,UDISP_OLIVE,\
UDISP_LIGHTGREY,UDISP_DARKGREY,UDISP_ORANGE,UDISP_GREENYELLOW,UDISP_PINK};
uint16_t uDisplay::GetColorFromIndex(uint8_t index) {
if (index >= sizeof(udisp_colors) / 2) index = 0;
return udisp_colors[index];
}
extern uint8_t *buffer;
extern uint8_t color_type;
uDisplay::uDisplay(char *lp) : Renderer(800, 600) {
// analyse decriptor
col_mode = 16;
sa_mode = 16;
saw_3 = 0xff;
dim_op = 0xff;
startline = 0xA1;
uint8_t section = 0;
dsp_ncmds = 0;
char linebuff[128];
while (*lp) {
uint16_t llen = strlen_ln(lp);
strncpy(linebuff, lp, llen);
linebuff[llen] = 0;
lp += llen;
char *lp1 = linebuff;
if (*lp1 == '#') break;
if (*lp1 == '\n') lp1++;
while (*lp1 == ' ') lp1++;
//Serial.printf(">> %s\n",lp1);
if (*lp1 != ';') {
// check ids:
if (*lp1 == ':') {
// id line
lp1++;
section = *lp1++;
if (*lp1 == ',') lp1++;
}
if (*lp1 != ':' && *lp1 != '\n') {
switch (section) {
case 'H':
// header line
// SD1306,128,64,1,I2C,5a,*,*,*
str2c(&lp1, dname, sizeof(dname));
char ibuff[16];
gxs = next_val(&lp1);
setwidth(gxs);
gys = next_val(&lp1);
setheight(gys);
bpp = next_val(&lp1);
if (bpp == 1) {
color_type = uCOLOR_BW;
} else {
color_type = uCOLOR_COLOR;
}
str2c(&lp1, ibuff, sizeof(ibuff));
if (!strncmp(ibuff, "I2C", 3)) {
interface = _UDSP_I2C;
i2caddr = next_hex(&lp1);
i2c_scl = next_val(&lp1);
i2c_sda = next_val(&lp1);
reset = next_val(&lp1);
section = 0;
} else if (!strncmp(ibuff, "SPI", 3)) {
interface = _UDSP_SPI;
spi_nr = next_val(&lp1);
spi_cs = next_val(&lp1);
spi_clk = next_val(&lp1);
spi_mosi = next_val(&lp1);
spi_dc = next_val(&lp1);
bpanel = next_val(&lp1);
reset = next_val(&lp1);
spi_miso = next_val(&lp1);
spi_speed = next_val(&lp1);
section = 0;
}
break;
case 'S':
splash_font = next_val(&lp1);
splash_size = next_val(&lp1);
fg_col = next_val(&lp1);
if (bpp == 16) {
fg_col = GetColorFromIndex(fg_col);
}
bg_col = next_val(&lp1);
if (bpp == 16) {
bg_col = GetColorFromIndex(bg_col);
}
splash_xp = next_val(&lp1);
splash_yp = next_val(&lp1);
break;
case 'I':
// init data
if (interface == _UDSP_I2C) {
dsp_cmds[dsp_ncmds++] = next_hex(&lp1);
if (!str2c(&lp1, ibuff, sizeof(ibuff))) {
dsp_cmds[dsp_ncmds++] = strtol(ibuff, 0, 16);
}
} else {
while (1) {
if (!str2c(&lp1, ibuff, sizeof(ibuff))) {
dsp_cmds[dsp_ncmds++] = strtol(ibuff, 0, 16);
} else {
break;
}
if (dsp_ncmds >= sizeof(dsp_cmds)) break;
}
}
break;
case 'o':
dsp_off = next_hex(&lp1);
break;
case 'O':
dsp_on = next_hex(&lp1);
break;
case 'R':
madctrl = next_hex(&lp1);
startline = next_hex(&lp1);
break;
case '0':
rot[0] = next_hex(&lp1);
x_addr_offs[0] = next_hex(&lp1);
y_addr_offs[0] = next_hex(&lp1);
rot_t[0] = next_hex(&lp1);
break;
case '1':
rot[1] = next_hex(&lp1);
x_addr_offs[1] = next_hex(&lp1);
y_addr_offs[1] = next_hex(&lp1);
rot_t[1] = next_hex(&lp1);
break;
case '2':
rot[2] = next_hex(&lp1);
x_addr_offs[2] = next_hex(&lp1);
y_addr_offs[2] = next_hex(&lp1);
rot_t[2] = next_hex(&lp1);
break;
case '3':
rot[3] = next_hex(&lp1);
x_addr_offs[3] = next_hex(&lp1);
y_addr_offs[3] = next_hex(&lp1);
rot_t[3] = next_hex(&lp1);
break;
case 'A':
saw_1 = next_hex(&lp1);
saw_2 = next_hex(&lp1);
saw_3 = next_hex(&lp1);
sa_mode = next_val(&lp1);
break;
case 'P':
col_mode = next_val(&lp1);
break;
case 'i':
inv_off = next_hex(&lp1);
inv_on = next_hex(&lp1);
break;
case 'D':
dim_op = next_hex(&lp1);
break;
}
}
}
if (*lp == '\n') {
lp++;
} else {
lp = strchr(lp, '\n');
if (!lp) break;
lp++;
}
}
#ifdef UDSP_DEBUG
Serial.printf("Nr. : %d\n", spi_nr);
Serial.printf("CS : %d\n", spi_cs);
Serial.printf("CLK : %d\n", spi_clk);
Serial.printf("MOSI: %d\n", spi_mosi);
Serial.printf("DC : %d\n", spi_dc);
Serial.printf("BPAN: %d\n", bpanel);
Serial.printf("RES : %d\n", reset);
Serial.printf("MISO: %d\n", spi_miso);
Serial.printf("SPED: %d\n", spi_speed*1000000);
Serial.printf("Pixels: %d\n", col_mode);
Serial.printf("SaMode: %d\n", sa_mode);
Serial.printf("opts: %02x,%02x,%02x\n", saw_3, dim_op, startline);
Serial.printf("SetAddr : %x,%x,%x\n", saw_1, saw_2, saw_3);
Serial.printf("Rot 0: %x,%x - %d - %d\n", madctrl, rot[0], x_addr_offs[0], y_addr_offs[0]);
#endif
}
Renderer *uDisplay::Init(void) {
if (reset >= 0) {
pinMode(reset, OUTPUT);
digitalWrite(reset, HIGH);
delay(50);
digitalWrite(reset, LOW);
delay(50);
digitalWrite(reset, HIGH);
delay(200);
}
if (interface == _UDSP_I2C) {
Wire.begin(i2c_sda, i2c_scl);
if (bpp < 16) {
if (buffer) free(buffer);
#ifdef ESP8266
buffer = (uint8_t*)calloc((width()*height()*bpp)/8, 1);
#else
if (psramFound()) {
buffer = (uint8_t*)heap_caps_malloc((width()*height()*bpp)/8, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
} else {
buffer = (uint8_t*)calloc((width()*height()*bpp)/8, 1);
}
#endif
}
for (uint32_t cnt = 0; cnt < dsp_ncmds; cnt++) {
i2c_command(dsp_cmds[cnt]);
}
}
if (interface == _UDSP_SPI) {
if (bpanel >= 0) {
#ifdef ESP32
ledcSetup(ESP32_PWM_CHANNEL, 4000, 8);
ledcAttachPin(bpanel, ESP32_PWM_CHANNEL);
ledcWrite(ESP32_PWM_CHANNEL, 128);
#else
pinMode(bpanel, OUTPUT);
digitalWrite(bpanel, HIGH);
#endif // ESP32
}
if (spi_dc >= 0) {
pinMode(spi_dc, OUTPUT);
digitalWrite(spi_dc, HIGH);
}
if (spi_cs >= 0) {
pinMode(spi_cs, OUTPUT);
digitalWrite(spi_cs, HIGH);
}
#ifdef ESP8266
if (spi_nr <= 1) {
SPI.begin();
uspi = &SPI;
} else {
pinMode(spi_clk, OUTPUT);
digitalWrite(spi_clk, LOW);
pinMode(spi_mosi, OUTPUT);
digitalWrite(spi_mosi, LOW);
pinMode(spi_dc, OUTPUT);
digitalWrite(spi_dc, LOW);
}
#endif // ESP8266
#ifdef ESP32
if (spi_nr == 1) {
uspi = &SPI;
uspi->begin(spi_clk, spi_miso, spi_mosi, -1);
} else if (spi_nr == 2) {
uspi = new SPIClass(HSPI);
uspi->begin(spi_clk, spi_miso, spi_mosi, -1);
} else {
pinMode(spi_clk, OUTPUT);
digitalWrite(spi_clk, LOW);
pinMode(spi_mosi, OUTPUT);
digitalWrite(spi_mosi, LOW);
pinMode(spi_dc, OUTPUT);
digitalWrite(spi_dc, LOW);
}
#endif // ESP32
spiSettings = SPISettings((uint32_t)spi_speed*1000000, MSBFIRST, SPI_MODE3);
uint16_t index = 0;
SPI_BEGIN_TRANSACTION
while (1) {
uint8_t iob;
SPI_CS_LOW
iob = dsp_cmds[index++];
spi_command(iob);
uint8_t args = dsp_cmds[index++];
#ifdef UDSP_DEBUG
Serial.printf("cmd, args %x, %d ", iob, args&0x1f);
#endif
for (uint32_t cnt = 0; cnt < (args & 0x1f); cnt++) {
iob = dsp_cmds[index++];
#ifdef UDSP_DEBUG
Serial.printf("%02x ", iob );
#endif
spi_data8(iob);
}
SPI_CS_HIGH
#ifdef UDSP_DEBUG
Serial.printf("\n");
#endif
if (args & 0x80) {
if (args&0x60) delay(500);
else delay(150);
}
if (index >= dsp_ncmds) break;
}
SPI_END_TRANSACTION
}
return this;
}
void uDisplay::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
setRotation(rot);
invertDisplay(false);
setTextWrap(false);
cp437(true);
setTextFont(font);
setTextSize(size);
setTextColor(fg_col, bg_col);
setCursor(0,0);
fillScreen(bg_col);
Updateframe();
}
void uDisplay::spi_command(uint8_t val) {
if (spi_dc < 0) {
if (spi_nr > 2) {
write9(val, 0);
} else {
hw_write9(val, 0);
}
} else {
SPI_DC_LOW
if (spi_nr > 2) {
write8(val);
} else {
uspi->write(val);
}
SPI_DC_HIGH
}
}
void uDisplay::spi_data8(uint8_t val) {
if (spi_dc < 0) {
if (spi_nr > 2) {
write9(val, 1);
} else {
hw_write9(val, 1);
}
} else {
if (spi_nr > 2) {
write8(val);
} else {
uspi->write(val);
}
}
}
void uDisplay::spi_data16(uint16_t val) {
if (spi_dc < 0) {
if (spi_nr > 2) {
write9(val >> 8, 1);
write9(val, 1);
} else {
hw_write9(val >> 8, 1);
hw_write9(val, 1);
}
} else {
if (spi_nr > 2) {
write16(val);
} else {
uspi->write16(val);
}
}
}
void uDisplay::spi_data32(uint32_t val) {
if (spi_dc < 0) {
if (spi_nr > 2) {
write9(val >> 24, 1);
write9(val >> 16, 1);
write9(val >> 8, 1);
write9(val, 1);
} else {
hw_write9(val >> 24, 1);
hw_write9(val >> 16, 1);
hw_write9(val >> 8, 1);
hw_write9(val, 1);
}
} else {
if (spi_nr > 2) {
write32(val);
} else {
uspi->write32(val);
}
}
}
void uDisplay::spi_command_one(uint8_t val) {
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
spi_command(val);
SPI_CS_HIGH
SPI_END_TRANSACTION
}
void uDisplay::i2c_command(uint8_t val) {
//Serial.printf("%02x\n",val );
Wire.beginTransmission(i2caddr);
Wire.write(0);
Wire.write(val);
Wire.endTransmission();
}
void uDisplay::Updateframe(void) {
if (interface == _UDSP_I2C) {
i2c_command(saw_1 | 0x0); // low col = 0
i2c_command(saw_2 | 0x0); // hi col = 0
i2c_command(saw_3 | 0x0); // line #0
uint8_t ys = gys >> 3;
uint8_t xs = gxs >> 3;
//uint8_t xs = 132 >> 3;
uint8_t m_row = 0;
uint8_t m_col = 2;
uint16_t p = 0;
uint8_t i, j, k = 0;
for ( i = 0; i < ys; i++) {
// send a bunch of data in one xmission
i2c_command(0xB0 + i + m_row);//set page address
i2c_command(m_col & 0xf);//set lower column address
i2c_command(0x10 | (m_col >> 4));//set higher column address
for( j = 0; j < 8; j++){
Wire.beginTransmission(i2caddr);
Wire.write(0x40);
for ( k = 0; k < xs; k++, p++) {
Wire.write(buffer[p]);
}
Wire.endTransmission();
}
}
}
}
void uDisplay::drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color) {
if (interface != _UDSP_SPI) {
Renderer::drawFastVLine(x, y, h, color);
return;
}
// Rudimentary clipping
if ((x >= _width) || (y >= _height)) return;
if ((y + h - 1) >= _height) h = _height - y;
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
setAddrWindow_int(x, y, 1, h);
if (col_mode == 18) {
uint8_t r = (color & 0xF800) >> 11;
uint8_t g = (color & 0x07E0) >> 5;
uint8_t b = color & 0x001F;
r = (r * 255) / 31;
g = (g * 255) / 63;
b = (b * 255) / 31;
while (h--) {
spi_data8(r);
spi_data8(g);
spi_data8(b);
}
} else {
while (h--) {
WriteColor(color);
}
}
SPI_CS_HIGH
SPI_END_TRANSACTION
}
void uDisplay::drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color) {
if (interface != _UDSP_SPI) {
Renderer::drawFastHLine(x, y, w, color);
return;
}
// Rudimentary clipping
if((x >= _width) || (y >= _height)) return;
if((x+w-1) >= _width) w = _width-x;
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
setAddrWindow_int(x, y, w, 1);
if (col_mode == 18) {
uint8_t r = (color & 0xF800) >> 11;
uint8_t g = (color & 0x07E0) >> 5;
uint8_t b = color & 0x001F;
r = (r * 255) / 31;
g = (g * 255) / 63;
b = (b * 255) / 31;
while (w--) {
spi_data8(r);
spi_data8(g);
spi_data8(b);
}
} else {
while (w--) {
WriteColor(color);
}
}
SPI_CS_HIGH
SPI_END_TRANSACTION
}
void uDisplay::fillScreen(uint16_t color) {
fillRect(0, 0, gxs, gys, color);
}
// fill a rectangle
void uDisplay::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) {
if (interface != _UDSP_SPI) {
Renderer::fillRect(x, y, w, h, color);
return;
}
if((x >= gxs) || (y >= gys)) return;
if((x + w - 1) >= gxs) w = gxs - x;
if((y + h - 1) >= gys) h = gys - y;
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
setAddrWindow_int(x, y, w, h);
if (col_mode == 18) {
uint8_t r = (color & 0xF800) >> 11;
uint8_t g = (color & 0x07E0) >> 5;
uint8_t b = color & 0x001F;
r = (r * 255) / 31;
g = (g * 255) / 63;
b = (b * 255) / 31;
for (y = h; y > 0; y--) {
for (x = w; x > 0; x--) {
spi_data8(r);
spi_data8(g);
spi_data8(b);
}
}
} else {
for (y = h; y > 0; y--) {
for (x = w; x > 0; x--) {
WriteColor(color);
}
}
}
SPI_CS_HIGH
SPI_END_TRANSACTION
}
/*
// pack RGB into uint32
uint32_t pack_rgb(uint32_t r, uint32_t g, uint32_t b) {
uint32_t data;
data=r<<23;
data|=g<<14;
data|=b<<5;
data|=0b10000000010000000010000000000000;
return ulswap(data);
}
// init 27 bit mode
uint32_t data=pack_rgb(r,g,b);
REG_SET_BIT(SPI_USER_REG(3), SPI_USR_MOSI);
REG_WRITE(SPI_MOSI_DLEN_REG(3), 27 - 1);
uint32_t *dp=(uint32_t*)SPI_W0_REG(3);
digitalWrite( _cs, LOW);
for(y=h; y>0; y--) {
for(x=w; x>0; x--) {
while (REG_GET_FIELD(SPI_CMD_REG(3), SPI_USR));
*dp=data;
REG_SET_BIT(SPI_CMD_REG(3), SPI_USR);
}
}
*/
void uDisplay::Splash(void) {
setTextFont(splash_font);
setTextSize(splash_size);
DrawStringAt(splash_xp, splash_yp, dname, fg_col, 0);
Updateframe();
}
void uDisplay::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
if (!x0 && !y0 && !x1 && !y1) {
SPI_CS_HIGH
SPI_END_TRANSACTION
} else {
SPI_CS_LOW
SPI_BEGIN_TRANSACTION
setAddrWindow_int(x0, y0, x1 - x0, y1 - y0 );
}
}
#define udisp_swap(a, b) (((a) ^= (b)), ((b) ^= (a)), ((a) ^= (b))) ///< No-temp-var swap operation
void uDisplay::setAddrWindow_int(uint16_t x, uint16_t y, uint16_t w, uint16_t h) {
x += x_addr_offs[cur_rot];
y += y_addr_offs[cur_rot];
if (sa_mode == 16) {
uint32_t xa = ((uint32_t)x << 16) | (x+w-1);
uint32_t ya = ((uint32_t)y << 16) | (y+h-1);
spi_command(saw_1);
spi_data32(xa);
spi_command(saw_2);
spi_data32(ya);
if (saw_3 != 0xff) {
spi_command(saw_3); // write to RAM
}
} else {
uint16_t x2 = x + w - 1,
y2 = y + h - 1;
if (cur_rot & 1) { // Vertical address increment mode
udisp_swap(x,y);
udisp_swap(x2,y2);
}
spi_command(saw_1);
spi_data8(x);
spi_data8(x2);
spi_command(saw_2);
spi_data8(y);
spi_data8(y2);
if (saw_3 != 0xff) {
spi_command(saw_3); // write to RAM
}
}
}
void uDisplay::pushColors(uint16_t *data, uint16_t len, boolean first) {
uint16_t color;
while (len--) {
color = *data++;
WriteColor(color);
}
}
void uDisplay::WriteColor(uint16_t color) {
if (col_mode == 18) {
uint8_t r = (color & 0xF800) >> 11;
uint8_t g = (color & 0x07E0) >> 5;
uint8_t b = color & 0x001F;
r = (r * 255) / 31;
g = (g * 255) / 63;
b = (b * 255) / 31;
spi_data8(r);
spi_data8(g);
spi_data8(b);
} else {
spi_data16(color);
}
}
void uDisplay::drawPixel(int16_t x, int16_t y, uint16_t color) {
if (interface != _UDSP_SPI) {
Renderer::drawPixel(x, y, color);
return;
}
if ((x < 0) || (x >= _width) || (y < 0) || (y >= _height)) return;
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
setAddrWindow_int(x, y, 1, 1);
WriteColor(color);
SPI_CS_HIGH
SPI_END_TRANSACTION
}
void uDisplay::setRotation(uint8_t rotation) {
cur_rot = rotation;
if (interface != _UDSP_SPI) {
Renderer::setRotation(cur_rot);
return;
}
if (interface == _UDSP_SPI) {
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
spi_command(madctrl);
spi_data8(rot[cur_rot]);
if (sa_mode == 8) {
spi_command(startline);
spi_data8((cur_rot < 2) ? height() : 0);
}
SPI_CS_HIGH
SPI_END_TRANSACTION
}
switch (rotation) {
case 0:
_width = gxs;
_height = gys;
break;
case 1:
_width = gys;
_height = gxs;
break;
case 2:
_width = gxs;
_height = gys;
break;
case 3:
_width = gys;
_height = gxs;
break;
}
}
void udisp_bpwr(uint8_t on);
void uDisplay::DisplayOnff(int8_t on) {
udisp_bpwr(on);
if (interface == _UDSP_I2C) {
if (on) {
i2c_command(dsp_on);
} else {
i2c_command(dsp_off);
}
} else {
if (on) {
spi_command_one(dsp_on);
if (bpanel >= 0) {
#ifdef ESP32
ledcWrite(ESP32_PWM_CHANNEL, dimmer);
#else
digitalWrite(bpanel, HIGH);
#endif
}
} else {
spi_command_one(dsp_off);
if (bpanel >= 0) {
#ifdef ESP32
ledcWrite(ESP32_PWM_CHANNEL, 0);
#else
digitalWrite(bpanel, LOW);
#endif
}
}
}
}
void uDisplay::invertDisplay(boolean i) {
if (i) {
spi_command_one(inv_on);
} else {
spi_command_one(inv_off);
}
}
void udisp_dimm(uint8_t dim);
void uDisplay::dim(uint8_t dim) {
dimmer = dim;
if (dimmer > 15) dimmer = 15;
dimmer = ((float)dimmer / 15.0) * 255.0;
#ifdef ESP32
if (bpanel >= 0) {
ledcWrite(ESP32_PWM_CHANNEL, dimmer);
} else {
udisp_dimm(dim);
}
#endif
if (dim_op != 0xff) {
SPI_BEGIN_TRANSACTION
SPI_CS_LOW
spi_command(dim_op);
spi_data8(dim);
SPI_CS_HIGH
SPI_END_TRANSACTION
}
}
void uDisplay::TS_RotConvert(int16_t *x, int16_t *y) {
int16_t temp;
switch (rot_t[cur_rot]) {
case 0:
break;
case 1:
temp = *y;
*y = height() - *x;
*x = temp;
break;
case 2:
*x = width() - *x;
*y = height() - *y;
break;
case 3:
temp = *y;
*y = *x;
*x = width() - temp;
break;
}
}
uint8_t uDisplay::strlen_ln(char *str) {
for (uint32_t cnt = 0; cnt < 256; cnt++) {
if (!str[cnt] || str[cnt] == '\n') return cnt;
}
return 0;
}
char *uDisplay::devname(void) {
return dname;
}
uint32_t uDisplay::str2c(char **sp, char *vp, uint32_t len) {
char *lp = *sp;
if (len) len--;
char *cp = strchr(lp, ',');
if (cp) {
while (1) {
if (*lp == ',') {
*vp = 0;
*sp = lp + 1;
return 0;
}
if (len) {
*vp++ = *lp++;
len--;
} else {
lp++;
}
}
} else {
uint8_t slen = strlen(lp);
if (slen) {
strlcpy(vp, *sp, len);
*sp = lp + slen;
return 0;
}
}
return 1;
}
int32_t uDisplay::next_val(char **sp) {
char ibuff[16];
if (!str2c(sp, ibuff, sizeof(ibuff))) {
return atoi(ibuff);
}
return 0xff;
}
uint32_t uDisplay::next_hex(char **sp) {
char ibuff[16];
if (!str2c(sp, ibuff, sizeof(ibuff))) {
return strtol(ibuff, 0, 16);
}
return 0xff;
}
#ifdef ESP32
#include "soc/spi_reg.h"
#include "soc/spi_struct.h"
#include "esp32-hal-spi.h"
#include "esp32-hal.h"
#include "soc/spi_struct.h"
// since ardunio transferBits ia completely disfunctional
// we use our own hardware driver for 9 bit spi
void uDisplay::hw_write9(uint8_t val, uint8_t dc) {
uint32_t regvalue = val >> 1;
if (dc) regvalue |= 0x80;
else regvalue &= 0x7f;
if (val & 1) regvalue |= 0x8000;
REG_SET_BIT(SPI_USER_REG(3), SPI_USR_MOSI);
REG_WRITE(SPI_MOSI_DLEN_REG(3), 9 - 1);
uint32_t *dp = (uint32_t*)SPI_W0_REG(3);
*dp = regvalue;
REG_SET_BIT(SPI_CMD_REG(3), SPI_USR);
while (REG_GET_FIELD(SPI_CMD_REG(3), SPI_USR));
}
#else
#include "spi_register.h"
void uDisplay::hw_write9(uint8_t val, uint8_t dc) {
uint32_t regvalue;
uint8_t bytetemp;
if (!dc) {
bytetemp = (val>> 1) & 0x7f;
} else {
bytetemp = (val >> 1) | 0x80;
}
regvalue = ((8 & SPI_USR_COMMAND_BITLEN) << SPI_USR_COMMAND_BITLEN_S) | ((uint32)bytetemp); //configure transmission variable,9bit transmission length and first 8 command bit
if (val & 0x01) regvalue |= BIT15; //write the 9th bit
while (READ_PERI_REG(SPI_CMD(1)) & SPI_USR); //waiting for spi module available
WRITE_PERI_REG(SPI_USER2(1), regvalue); //write command and command length into spi reg
SET_PERI_REG_MASK(SPI_CMD(1), SPI_USR); //transmission start
}
#endif
#define USECACHE ICACHE_RAM_ATTR
void USECACHE uDisplay::write8(uint8_t val) {
for (uint8_t bit = 0x80; bit; bit >>= 1) {
GPIO_CLR(spi_clk);
if (val & bit) GPIO_SET(spi_mosi);
else GPIO_CLR(spi_mosi);
GPIO_SET(spi_clk);
}
}
void USECACHE uDisplay::write9(uint8_t val, uint8_t dc) {
GPIO_CLR(spi_clk);
if (dc) GPIO_SET(spi_mosi);
else GPIO_CLR(spi_mosi);
GPIO_SET(spi_clk);
for (uint8_t bit = 0x80; bit; bit >>= 1) {
GPIO_CLR(spi_clk);
if (val & bit) GPIO_SET(spi_mosi);
else GPIO_CLR(spi_mosi);
GPIO_SET(spi_clk);
}
}
void USECACHE uDisplay::write16(uint16_t val) {
for (uint16_t bit = 0x8000; bit; bit >>= 1) {
GPIO_CLR(spi_clk);
if (val & bit) GPIO_SET(spi_mosi);
else GPIO_CLR(spi_mosi);
GPIO_SET(spi_clk);
}
}
void USECACHE uDisplay::write32(uint32_t val) {
for (uint32_t bit = 0x80000000; bit; bit >>= 1) {
GPIO_CLR(spi_clk);
if (val & bit) GPIO_SET(spi_mosi);
else GPIO_CLR(spi_mosi);
GPIO_SET(spi_clk);
}
}
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