From f93e261d7574ce1901cb70ebbcd7b74dbc76398e Mon Sep 17 00:00:00 2001 From: Oxan van Leeuwen Date: Thu, 10 Jun 2021 22:33:12 +0200 Subject: [PATCH] Convert st7735.cpp to use Unix line separators (#1894) --- esphome/components/st7735/st7735.cpp | 972 +++++++++++++-------------- 1 file changed, 486 insertions(+), 486 deletions(-) diff --git a/esphome/components/st7735/st7735.cpp b/esphome/components/st7735/st7735.cpp index f0711f7c87..f329ef4620 100644 --- a/esphome/components/st7735/st7735.cpp +++ b/esphome/components/st7735/st7735.cpp @@ -1,486 +1,486 @@ -#include "st7735.h" -#include "esphome/core/log.h" -#include "esphome/core/helpers.h" - -namespace esphome { -namespace st7735 { - -static const uint8_t ST_CMD_DELAY = 0x80; // special signifier for command lists - -static const uint8_t ST77XX_NOP = 0x00; -static const uint8_t ST77XX_SWRESET = 0x01; -static const uint8_t ST77XX_RDDID = 0x04; -static const uint8_t ST77XX_RDDST = 0x09; - -static const uint8_t ST77XX_SLPIN = 0x10; -static const uint8_t ST77XX_SLPOUT = 0x11; -static const uint8_t ST77XX_PTLON = 0x12; -static const uint8_t ST77XX_NORON = 0x13; - -static const uint8_t ST77XX_INVOFF = 0x20; -static const uint8_t ST77XX_INVON = 0x21; -static const uint8_t ST77XX_DISPOFF = 0x28; -static const uint8_t ST77XX_DISPON = 0x29; -static const uint8_t ST77XX_CASET = 0x2A; -static const uint8_t ST77XX_RASET = 0x2B; -static const uint8_t ST77XX_RAMWR = 0x2C; -static const uint8_t ST77XX_RAMRD = 0x2E; - -static const uint8_t ST77XX_PTLAR = 0x30; -static const uint8_t ST77XX_TEOFF = 0x34; -static const uint8_t ST77XX_TEON = 0x35; -static const uint8_t ST77XX_MADCTL = 0x36; -static const uint8_t ST77XX_COLMOD = 0x3A; - -static const uint8_t ST77XX_MADCTL_MY = 0x80; -static const uint8_t ST77XX_MADCTL_MX = 0x40; -static const uint8_t ST77XX_MADCTL_MV = 0x20; -static const uint8_t ST77XX_MADCTL_ML = 0x10; -static const uint8_t ST77XX_MADCTL_RGB = 0x00; - -static const uint8_t ST77XX_RDID1 = 0xDA; -static const uint8_t ST77XX_RDID2 = 0xDB; -static const uint8_t ST77XX_RDID3 = 0xDC; -static const uint8_t ST77XX_RDID4 = 0xDD; - -// Some register settings -static const uint8_t ST7735_MADCTL_BGR = 0x08; - -static const uint8_t ST7735_MADCTL_MH = 0x04; - -static const uint8_t ST7735_FRMCTR1 = 0xB1; -static const uint8_t ST7735_FRMCTR2 = 0xB2; -static const uint8_t ST7735_FRMCTR3 = 0xB3; -static const uint8_t ST7735_INVCTR = 0xB4; -static const uint8_t ST7735_DISSET5 = 0xB6; - -static const uint8_t ST7735_PWCTR1 = 0xC0; -static const uint8_t ST7735_PWCTR2 = 0xC1; -static const uint8_t ST7735_PWCTR3 = 0xC2; -static const uint8_t ST7735_PWCTR4 = 0xC3; -static const uint8_t ST7735_PWCTR5 = 0xC4; -static const uint8_t ST7735_VMCTR1 = 0xC5; - -static const uint8_t ST7735_PWCTR6 = 0xFC; - -static const uint8_t ST7735_GMCTRP1 = 0xE0; -static const uint8_t ST7735_GMCTRN1 = 0xE1; - -// clang-format off -static const uint8_t PROGMEM - BCMD[] = { // Init commands for 7735B screens - 18, // 18 commands in list: - ST77XX_SWRESET, ST_CMD_DELAY, // 1: Software reset, no args, w/delay - 50, // 50 ms delay - ST77XX_SLPOUT, ST_CMD_DELAY, // 2: Out of sleep mode, no args, w/delay - 255, // 255 = max (500 ms) delay - ST77XX_COLMOD, 1+ST_CMD_DELAY, // 3: Set color mode, 1 arg + delay: - 0x05, // 16-bit color - 10, // 10 ms delay - ST7735_FRMCTR1, 3+ST_CMD_DELAY, // 4: Frame rate control, 3 args + delay: - 0x00, // fastest refresh - 0x06, // 6 lines front porch - 0x03, // 3 lines back porch - 10, // 10 ms delay - ST77XX_MADCTL, 1, // 5: Mem access ctl (directions), 1 arg: - 0x08, // Row/col addr, bottom-top refresh - ST7735_DISSET5, 2, // 6: Display settings #5, 2 args: - 0x15, // 1 clk cycle nonoverlap, 2 cycle gate - // rise, 3 cycle osc equalize - 0x02, // Fix on VTL - ST7735_INVCTR, 1, // 7: Display inversion control, 1 arg: - 0x0, // Line inversion - ST7735_PWCTR1, 2+ST_CMD_DELAY, // 8: Power control, 2 args + delay: - 0x02, // GVDD = 4.7V - 0x70, // 1.0uA - 10, // 10 ms delay - ST7735_PWCTR2, 1, // 9: Power control, 1 arg, no delay: - 0x05, // VGH = 14.7V, VGL = -7.35V - ST7735_PWCTR3, 2, // 10: Power control, 2 args, no delay: - 0x01, // Opamp current small - 0x02, // Boost frequency - ST7735_VMCTR1, 2+ST_CMD_DELAY, // 11: Power control, 2 args + delay: - 0x3C, // VCOMH = 4V - 0x38, // VCOML = -1.1V - 10, // 10 ms delay - ST7735_PWCTR6, 2, // 12: Power control, 2 args, no delay: - 0x11, 0x15, - ST7735_GMCTRP1,16, // 13: Gamma Adjustments (pos. polarity), 16 args + delay: - 0x09, 0x16, 0x09, 0x20, // (Not entirely necessary, but provides - 0x21, 0x1B, 0x13, 0x19, // accurate colors) - 0x17, 0x15, 0x1E, 0x2B, - 0x04, 0x05, 0x02, 0x0E, - ST7735_GMCTRN1,16+ST_CMD_DELAY, // 14: Gamma Adjustments (neg. polarity), 16 args + delay: - 0x0B, 0x14, 0x08, 0x1E, // (Not entirely necessary, but provides - 0x22, 0x1D, 0x18, 0x1E, // accurate colors) - 0x1B, 0x1A, 0x24, 0x2B, - 0x06, 0x06, 0x02, 0x0F, - 10, // 10 ms delay - ST77XX_CASET, 4, // 15: Column addr set, 4 args, no delay: - 0x00, 0x02, // XSTART = 2 - 0x00, 0x81, // XEND = 129 - ST77XX_RASET, 4, // 16: Row addr set, 4 args, no delay: - 0x00, 0x02, // XSTART = 1 - 0x00, 0x81, // XEND = 160 - ST77XX_NORON, ST_CMD_DELAY, // 17: Normal display on, no args, w/delay - 10, // 10 ms delay - ST77XX_DISPON, ST_CMD_DELAY, // 18: Main screen turn on, no args, delay - 255 }, // 255 = max (500 ms) delay - - RCMD1[] = { // 7735R init, part 1 (red or green tab) - 15, // 15 commands in list: - ST77XX_SWRESET, ST_CMD_DELAY, // 1: Software reset, 0 args, w/delay - 150, // 150 ms delay - ST77XX_SLPOUT, ST_CMD_DELAY, // 2: Out of sleep mode, 0 args, w/delay - 255, // 500 ms delay - ST7735_FRMCTR1, 3, // 3: Framerate ctrl - normal mode, 3 arg: - 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) - ST7735_FRMCTR2, 3, // 4: Framerate ctrl - idle mode, 3 args: - 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) - ST7735_FRMCTR3, 6, // 5: Framerate - partial mode, 6 args: - 0x01, 0x2C, 0x2D, // Dot inversion mode - 0x01, 0x2C, 0x2D, // Line inversion mode - ST7735_INVCTR, 1, // 6: Display inversion ctrl, 1 arg: - 0x07, // No inversion - ST7735_PWCTR1, 3, // 7: Power control, 3 args, no delay: - 0xA2, - 0x02, // -4.6V - 0x84, // AUTO mode - ST7735_PWCTR2, 1, // 8: Power control, 1 arg, no delay: - 0xC5, // VGH25=2.4C VGSEL=-10 VGH=3 * AVDD - ST7735_PWCTR3, 2, // 9: Power control, 2 args, no delay: - 0x0A, // Opamp current small - 0x00, // Boost frequency - ST7735_PWCTR4, 2, // 10: Power control, 2 args, no delay: - 0x8A, // BCLK/2, - 0x2A, // opamp current small & medium low - ST7735_PWCTR5, 2, // 11: Power control, 2 args, no delay: - 0x8A, 0xEE, - ST7735_VMCTR1, 1, // 12: Power control, 1 arg, no delay: - 0x0E, - ST77XX_INVOFF, 0, // 13: Don't invert display, no args - ST77XX_MADCTL, 1, // 14: Mem access ctl (directions), 1 arg: - 0xC8, // row/col addr, bottom-top refresh - ST77XX_COLMOD, 1, // 15: set color mode, 1 arg, no delay: - 0x05 }, // 16-bit color - - RCMD2GREEN[] = { // 7735R init, part 2 (green tab only) - 2, // 2 commands in list: - ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: - 0x00, 0x02, // XSTART = 0 - 0x00, 0x7F+0x02, // XEND = 127 - ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: - 0x00, 0x01, // XSTART = 0 - 0x00, 0x9F+0x01 }, // XEND = 159 - - RCMD2RED[] = { // 7735R init, part 2 (red tab only) - 2, // 2 commands in list: - ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: - 0x00, 0x00, // XSTART = 0 - 0x00, 0x7F, // XEND = 127 - ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: - 0x00, 0x00, // XSTART = 0 - 0x00, 0x9F }, // XEND = 159 - - RCMD2GREEN144[] = { // 7735R init, part 2 (green 1.44 tab) - 2, // 2 commands in list: - ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: - 0x00, 0x00, // XSTART = 0 - 0x00, 0x7F, // XEND = 127 - ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: - 0x00, 0x00, // XSTART = 0 - 0x00, 0x7F }, // XEND = 127 - - RCMD2GREEN160X80[] = { // 7735R init, part 2 (mini 160x80) - 2, // 2 commands in list: - ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: - 0x00, 0x00, // XSTART = 0 - 0x00, 0x4F, // XEND = 79 - ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: - 0x00, 0x00, // XSTART = 0 - 0x00, 0x9F }, // XEND = 159 - - RCMD3[] = { // 7735R init, part 3 (red or green tab) - 4, // 4 commands in list: - ST7735_GMCTRP1, 16 , // 1: Gamma Adjustments (pos. polarity), 16 args + delay: - 0x02, 0x1c, 0x07, 0x12, // (Not entirely necessary, but provides - 0x37, 0x32, 0x29, 0x2d, // accurate colors) - 0x29, 0x25, 0x2B, 0x39, - 0x00, 0x01, 0x03, 0x10, - ST7735_GMCTRN1, 16 , // 2: Gamma Adjustments (neg. polarity), 16 args + delay: - 0x03, 0x1d, 0x07, 0x06, // (Not entirely necessary, but provides - 0x2E, 0x2C, 0x29, 0x2D, // accurate colors) - 0x2E, 0x2E, 0x37, 0x3F, - 0x00, 0x00, 0x02, 0x10, - ST77XX_NORON, ST_CMD_DELAY, // 3: Normal display on, no args, w/delay - 10, // 10 ms delay - ST77XX_DISPON, ST_CMD_DELAY, // 4: Main screen turn on, no args w/delay - 100 }; // 100 ms delay - -// clang-format on -static const char *const TAG = "st7735"; - -ST7735::ST7735(ST7735Model model, int width, int height, int colstart, int rowstart, boolean eightbitcolor, - boolean usebgr) { - model_ = model; - this->width_ = width; - this->height_ = height; - this->colstart_ = colstart; - this->rowstart_ = rowstart; - this->eightbitcolor_ = eightbitcolor; - this->usebgr_ = usebgr; -} - -void ST7735::setup() { - ESP_LOGCONFIG(TAG, "Setting up ST7735..."); - this->spi_setup(); - - this->dc_pin_->setup(); // OUTPUT - this->cs_->setup(); // OUTPUT - - this->dc_pin_->digital_write(true); - this->cs_->digital_write(true); - - this->init_reset_(); - delay(100); // NOLINT - - ESP_LOGD(TAG, " START"); - dump_config(); - ESP_LOGD(TAG, " END"); - - display_init_(RCMD1); - - if (this->model_ == INITR_GREENTAB) { - display_init_(RCMD2GREEN); - colstart_ == 0 ? colstart_ = 2 : colstart_; - rowstart_ == 0 ? rowstart_ = 1 : rowstart_; - } else if ((this->model_ == INITR_144GREENTAB) || (this->model_ == INITR_HALLOWING)) { - height_ == 0 ? height_ = ST7735_TFTHEIGHT_128 : height_; - width_ == 0 ? width_ = ST7735_TFTWIDTH_128 : width_; - display_init_(RCMD2GREEN144); - colstart_ == 0 ? colstart_ = 2 : colstart_; - rowstart_ == 0 ? rowstart_ = 3 : rowstart_; - } else if (this->model_ == INITR_MINI_160X80) { - height_ == 0 ? height_ = ST7735_TFTHEIGHT_160 : height_; - width_ == 0 ? width_ = ST7735_TFTWIDTH_80 : width_; - display_init_(RCMD2GREEN160X80); - colstart_ = 24; - rowstart_ = 0; // For default rotation 0 - } else { - // colstart, rowstart left at default '0' values - display_init_(RCMD2RED); - } - display_init_(RCMD3); - - uint8_t data = 0; - if (this->model_ != INITR_HALLOWING) { - uint8_t data = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY; - } - if (this->usebgr_) { - data = data | ST7735_MADCTL_BGR; - } else { - data = data | ST77XX_MADCTL_RGB; - } - sendcommand_(ST77XX_MADCTL, &data, 1); - - this->init_internal_(this->get_buffer_length()); - memset(this->buffer_, 0x00, this->get_buffer_length()); -} - -void ST7735::update() { - this->do_update_(); - this->write_display_data_(); -} - -int ST7735::get_height_internal() { return height_; } - -int ST7735::get_width_internal() { return width_; } - -size_t ST7735::get_buffer_length() { - if (this->eightbitcolor_) { - return size_t(this->get_width_internal()) * size_t(this->get_height_internal()); - } - return size_t(this->get_width_internal()) * size_t(this->get_height_internal()) * 2; -} - -void HOT ST7735::draw_absolute_pixel_internal(int x, int y, Color color) { - if (x >= this->get_width_internal() || x < 0 || y >= this->get_height_internal() || y < 0) - return; - - if (this->eightbitcolor_) { - const uint32_t color332 = display::ColorUtil::color_to_332(color); - uint16_t pos = (x + y * this->get_width_internal()); - this->buffer_[pos] = color332; - } else { - const uint32_t color565 = display::ColorUtil::color_to_565(color); - uint16_t pos = (x + y * this->get_width_internal()) * 2; - this->buffer_[pos++] = (color565 >> 8) & 0xff; - this->buffer_[pos] = color565 & 0xff; - } -} - -void ST7735::init_reset_() { - if (this->reset_pin_ != nullptr) { - this->reset_pin_->setup(); - this->reset_pin_->digital_write(true); - delay(1); - // Trigger Reset - this->reset_pin_->digital_write(false); - delay(10); - // Wake up - this->reset_pin_->digital_write(true); - } -} -const char *ST7735::model_str_() { - switch (this->model_) { - case INITR_GREENTAB: - return "ST7735 GREENTAB"; - case INITR_REDTAB: - return "ST7735 REDTAB"; - case INITR_BLACKTAB: - return "ST7735 BLACKTAB"; - case INITR_MINI_160X80: - return "ST7735 MINI160x80"; - default: - return "Unknown"; - } -} - -void ST7735::display_init_(const uint8_t *addr) { - uint8_t num_commands, cmd, num_args; - uint16_t ms; - - num_commands = pgm_read_byte(addr++); // Number of commands to follow - while (num_commands--) { // For each command... - cmd = pgm_read_byte(addr++); // Read command - num_args = pgm_read_byte(addr++); // Number of args to follow - ms = num_args & ST_CMD_DELAY; // If hibit set, delay follows args - num_args &= ~ST_CMD_DELAY; // Mask out delay bit - this->sendcommand_(cmd, addr, num_args); - addr += num_args; - - if (ms) { - ms = pgm_read_byte(addr++); // Read post-command delay time (ms) - if (ms == 255) - ms = 500; // If 255, delay for 500 ms - delay(ms); - } - } -} - -void ST7735::dump_config() { - LOG_DISPLAY("", "ST7735", this); - ESP_LOGCONFIG(TAG, " Model: %s", this->model_str_()); - LOG_PIN(" CS Pin: ", this->cs_); - LOG_PIN(" DC Pin: ", this->dc_pin_); - LOG_PIN(" Reset Pin: ", this->reset_pin_); - ESP_LOGD(TAG, " Buffer Size: %zu", this->get_buffer_length()); - ESP_LOGD(TAG, " Height: %d", this->height_); - ESP_LOGD(TAG, " Width: %d", this->width_); - ESP_LOGD(TAG, " ColStart: %d", this->colstart_); - ESP_LOGD(TAG, " RowStart: %d", this->rowstart_); - LOG_UPDATE_INTERVAL(this); -} - -void HOT ST7735::writecommand_(uint8_t value) { - this->enable(); - this->dc_pin_->digital_write(false); - this->write_byte(value); - this->dc_pin_->digital_write(true); - this->disable(); -} - -void HOT ST7735::writedata_(uint8_t value) { - this->dc_pin_->digital_write(true); - this->enable(); - this->write_byte(value); - this->disable(); -} - -void HOT ST7735::sendcommand_(uint8_t cmd, const uint8_t *data_bytes, uint8_t num_data_bytes) { - this->writecommand_(cmd); - this->senddata_(data_bytes, num_data_bytes); -} - -void HOT ST7735::senddata_(const uint8_t *data_bytes, uint8_t num_data_bytes) { - this->dc_pin_->digital_write(true); // pull DC high to indicate data - this->cs_->digital_write(false); - this->enable(); - for (uint8_t i = 0; i < num_data_bytes; i++) { - this->write_byte(pgm_read_byte(data_bytes++)); // write byte - SPI library - } - this->cs_->digital_write(true); - this->disable(); -} - -void HOT ST7735::write_display_data_() { - uint16_t offsetx = colstart_; - uint16_t offsety = rowstart_; - - uint16_t x1 = offsetx; - uint16_t x2 = x1 + get_width_internal() - 1; - uint16_t y1 = offsety; - uint16_t y2 = y1 + get_height_internal() - 1; - - this->enable(); - - // set column(x) address - this->dc_pin_->digital_write(false); - this->write_byte(ST77XX_CASET); - this->dc_pin_->digital_write(true); - this->spi_master_write_addr_(x1, x2); - - // set Page(y) address - this->dc_pin_->digital_write(false); - this->write_byte(ST77XX_RASET); - this->dc_pin_->digital_write(true); - this->spi_master_write_addr_(y1, y2); - - // Memory Write - this->dc_pin_->digital_write(false); - this->write_byte(ST77XX_RAMWR); - this->dc_pin_->digital_write(true); - - if (this->eightbitcolor_) { - for (int line = 0; line < this->get_buffer_length(); line = line + this->get_width_internal()) { - for (int index = 0; index < this->get_width_internal(); ++index) { - auto color332 = display::ColorUtil::to_color(this->buffer_[index + line], display::ColorOrder::COLOR_ORDER_RGB, - display::ColorBitness::COLOR_BITNESS_332, true); - - auto color = display::ColorUtil::color_to_565(color332); - - this->write_byte((color >> 8) & 0xff); - this->write_byte(color & 0xff); - } - } - } else { - this->write_array(this->buffer_, this->get_buffer_length()); - } - this->disable(); -} - -void ST7735::spi_master_write_addr_(uint16_t addr1, uint16_t addr2) { - static uint8_t BYTE[4]; - BYTE[0] = (addr1 >> 8) & 0xFF; - BYTE[1] = addr1 & 0xFF; - BYTE[2] = (addr2 >> 8) & 0xFF; - BYTE[3] = addr2 & 0xFF; - - this->dc_pin_->digital_write(true); - this->write_array(BYTE, 4); -} - -void ST7735::spi_master_write_color_(uint16_t color, uint16_t size) { - static uint8_t BYTE[1024]; - int index = 0; - for (int i = 0; i < size; i++) { - BYTE[index++] = (color >> 8) & 0xFF; - BYTE[index++] = color & 0xFF; - } - - this->dc_pin_->digital_write(true); - return write_array(BYTE, size * 2); -} - -} // namespace st7735 -} // namespace esphome +#include "st7735.h" +#include "esphome/core/log.h" +#include "esphome/core/helpers.h" + +namespace esphome { +namespace st7735 { + +static const uint8_t ST_CMD_DELAY = 0x80; // special signifier for command lists + +static const uint8_t ST77XX_NOP = 0x00; +static const uint8_t ST77XX_SWRESET = 0x01; +static const uint8_t ST77XX_RDDID = 0x04; +static const uint8_t ST77XX_RDDST = 0x09; + +static const uint8_t ST77XX_SLPIN = 0x10; +static const uint8_t ST77XX_SLPOUT = 0x11; +static const uint8_t ST77XX_PTLON = 0x12; +static const uint8_t ST77XX_NORON = 0x13; + +static const uint8_t ST77XX_INVOFF = 0x20; +static const uint8_t ST77XX_INVON = 0x21; +static const uint8_t ST77XX_DISPOFF = 0x28; +static const uint8_t ST77XX_DISPON = 0x29; +static const uint8_t ST77XX_CASET = 0x2A; +static const uint8_t ST77XX_RASET = 0x2B; +static const uint8_t ST77XX_RAMWR = 0x2C; +static const uint8_t ST77XX_RAMRD = 0x2E; + +static const uint8_t ST77XX_PTLAR = 0x30; +static const uint8_t ST77XX_TEOFF = 0x34; +static const uint8_t ST77XX_TEON = 0x35; +static const uint8_t ST77XX_MADCTL = 0x36; +static const uint8_t ST77XX_COLMOD = 0x3A; + +static const uint8_t ST77XX_MADCTL_MY = 0x80; +static const uint8_t ST77XX_MADCTL_MX = 0x40; +static const uint8_t ST77XX_MADCTL_MV = 0x20; +static const uint8_t ST77XX_MADCTL_ML = 0x10; +static const uint8_t ST77XX_MADCTL_RGB = 0x00; + +static const uint8_t ST77XX_RDID1 = 0xDA; +static const uint8_t ST77XX_RDID2 = 0xDB; +static const uint8_t ST77XX_RDID3 = 0xDC; +static const uint8_t ST77XX_RDID4 = 0xDD; + +// Some register settings +static const uint8_t ST7735_MADCTL_BGR = 0x08; + +static const uint8_t ST7735_MADCTL_MH = 0x04; + +static const uint8_t ST7735_FRMCTR1 = 0xB1; +static const uint8_t ST7735_FRMCTR2 = 0xB2; +static const uint8_t ST7735_FRMCTR3 = 0xB3; +static const uint8_t ST7735_INVCTR = 0xB4; +static const uint8_t ST7735_DISSET5 = 0xB6; + +static const uint8_t ST7735_PWCTR1 = 0xC0; +static const uint8_t ST7735_PWCTR2 = 0xC1; +static const uint8_t ST7735_PWCTR3 = 0xC2; +static const uint8_t ST7735_PWCTR4 = 0xC3; +static const uint8_t ST7735_PWCTR5 = 0xC4; +static const uint8_t ST7735_VMCTR1 = 0xC5; + +static const uint8_t ST7735_PWCTR6 = 0xFC; + +static const uint8_t ST7735_GMCTRP1 = 0xE0; +static const uint8_t ST7735_GMCTRN1 = 0xE1; + +// clang-format off +static const uint8_t PROGMEM + BCMD[] = { // Init commands for 7735B screens + 18, // 18 commands in list: + ST77XX_SWRESET, ST_CMD_DELAY, // 1: Software reset, no args, w/delay + 50, // 50 ms delay + ST77XX_SLPOUT, ST_CMD_DELAY, // 2: Out of sleep mode, no args, w/delay + 255, // 255 = max (500 ms) delay + ST77XX_COLMOD, 1+ST_CMD_DELAY, // 3: Set color mode, 1 arg + delay: + 0x05, // 16-bit color + 10, // 10 ms delay + ST7735_FRMCTR1, 3+ST_CMD_DELAY, // 4: Frame rate control, 3 args + delay: + 0x00, // fastest refresh + 0x06, // 6 lines front porch + 0x03, // 3 lines back porch + 10, // 10 ms delay + ST77XX_MADCTL, 1, // 5: Mem access ctl (directions), 1 arg: + 0x08, // Row/col addr, bottom-top refresh + ST7735_DISSET5, 2, // 6: Display settings #5, 2 args: + 0x15, // 1 clk cycle nonoverlap, 2 cycle gate + // rise, 3 cycle osc equalize + 0x02, // Fix on VTL + ST7735_INVCTR, 1, // 7: Display inversion control, 1 arg: + 0x0, // Line inversion + ST7735_PWCTR1, 2+ST_CMD_DELAY, // 8: Power control, 2 args + delay: + 0x02, // GVDD = 4.7V + 0x70, // 1.0uA + 10, // 10 ms delay + ST7735_PWCTR2, 1, // 9: Power control, 1 arg, no delay: + 0x05, // VGH = 14.7V, VGL = -7.35V + ST7735_PWCTR3, 2, // 10: Power control, 2 args, no delay: + 0x01, // Opamp current small + 0x02, // Boost frequency + ST7735_VMCTR1, 2+ST_CMD_DELAY, // 11: Power control, 2 args + delay: + 0x3C, // VCOMH = 4V + 0x38, // VCOML = -1.1V + 10, // 10 ms delay + ST7735_PWCTR6, 2, // 12: Power control, 2 args, no delay: + 0x11, 0x15, + ST7735_GMCTRP1,16, // 13: Gamma Adjustments (pos. polarity), 16 args + delay: + 0x09, 0x16, 0x09, 0x20, // (Not entirely necessary, but provides + 0x21, 0x1B, 0x13, 0x19, // accurate colors) + 0x17, 0x15, 0x1E, 0x2B, + 0x04, 0x05, 0x02, 0x0E, + ST7735_GMCTRN1,16+ST_CMD_DELAY, // 14: Gamma Adjustments (neg. polarity), 16 args + delay: + 0x0B, 0x14, 0x08, 0x1E, // (Not entirely necessary, but provides + 0x22, 0x1D, 0x18, 0x1E, // accurate colors) + 0x1B, 0x1A, 0x24, 0x2B, + 0x06, 0x06, 0x02, 0x0F, + 10, // 10 ms delay + ST77XX_CASET, 4, // 15: Column addr set, 4 args, no delay: + 0x00, 0x02, // XSTART = 2 + 0x00, 0x81, // XEND = 129 + ST77XX_RASET, 4, // 16: Row addr set, 4 args, no delay: + 0x00, 0x02, // XSTART = 1 + 0x00, 0x81, // XEND = 160 + ST77XX_NORON, ST_CMD_DELAY, // 17: Normal display on, no args, w/delay + 10, // 10 ms delay + ST77XX_DISPON, ST_CMD_DELAY, // 18: Main screen turn on, no args, delay + 255 }, // 255 = max (500 ms) delay + + RCMD1[] = { // 7735R init, part 1 (red or green tab) + 15, // 15 commands in list: + ST77XX_SWRESET, ST_CMD_DELAY, // 1: Software reset, 0 args, w/delay + 150, // 150 ms delay + ST77XX_SLPOUT, ST_CMD_DELAY, // 2: Out of sleep mode, 0 args, w/delay + 255, // 500 ms delay + ST7735_FRMCTR1, 3, // 3: Framerate ctrl - normal mode, 3 arg: + 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) + ST7735_FRMCTR2, 3, // 4: Framerate ctrl - idle mode, 3 args: + 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) + ST7735_FRMCTR3, 6, // 5: Framerate - partial mode, 6 args: + 0x01, 0x2C, 0x2D, // Dot inversion mode + 0x01, 0x2C, 0x2D, // Line inversion mode + ST7735_INVCTR, 1, // 6: Display inversion ctrl, 1 arg: + 0x07, // No inversion + ST7735_PWCTR1, 3, // 7: Power control, 3 args, no delay: + 0xA2, + 0x02, // -4.6V + 0x84, // AUTO mode + ST7735_PWCTR2, 1, // 8: Power control, 1 arg, no delay: + 0xC5, // VGH25=2.4C VGSEL=-10 VGH=3 * AVDD + ST7735_PWCTR3, 2, // 9: Power control, 2 args, no delay: + 0x0A, // Opamp current small + 0x00, // Boost frequency + ST7735_PWCTR4, 2, // 10: Power control, 2 args, no delay: + 0x8A, // BCLK/2, + 0x2A, // opamp current small & medium low + ST7735_PWCTR5, 2, // 11: Power control, 2 args, no delay: + 0x8A, 0xEE, + ST7735_VMCTR1, 1, // 12: Power control, 1 arg, no delay: + 0x0E, + ST77XX_INVOFF, 0, // 13: Don't invert display, no args + ST77XX_MADCTL, 1, // 14: Mem access ctl (directions), 1 arg: + 0xC8, // row/col addr, bottom-top refresh + ST77XX_COLMOD, 1, // 15: set color mode, 1 arg, no delay: + 0x05 }, // 16-bit color + + RCMD2GREEN[] = { // 7735R init, part 2 (green tab only) + 2, // 2 commands in list: + ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: + 0x00, 0x02, // XSTART = 0 + 0x00, 0x7F+0x02, // XEND = 127 + ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: + 0x00, 0x01, // XSTART = 0 + 0x00, 0x9F+0x01 }, // XEND = 159 + + RCMD2RED[] = { // 7735R init, part 2 (red tab only) + 2, // 2 commands in list: + ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: + 0x00, 0x00, // XSTART = 0 + 0x00, 0x7F, // XEND = 127 + ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: + 0x00, 0x00, // XSTART = 0 + 0x00, 0x9F }, // XEND = 159 + + RCMD2GREEN144[] = { // 7735R init, part 2 (green 1.44 tab) + 2, // 2 commands in list: + ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: + 0x00, 0x00, // XSTART = 0 + 0x00, 0x7F, // XEND = 127 + ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: + 0x00, 0x00, // XSTART = 0 + 0x00, 0x7F }, // XEND = 127 + + RCMD2GREEN160X80[] = { // 7735R init, part 2 (mini 160x80) + 2, // 2 commands in list: + ST77XX_CASET, 4, // 1: Column addr set, 4 args, no delay: + 0x00, 0x00, // XSTART = 0 + 0x00, 0x4F, // XEND = 79 + ST77XX_RASET, 4, // 2: Row addr set, 4 args, no delay: + 0x00, 0x00, // XSTART = 0 + 0x00, 0x9F }, // XEND = 159 + + RCMD3[] = { // 7735R init, part 3 (red or green tab) + 4, // 4 commands in list: + ST7735_GMCTRP1, 16 , // 1: Gamma Adjustments (pos. polarity), 16 args + delay: + 0x02, 0x1c, 0x07, 0x12, // (Not entirely necessary, but provides + 0x37, 0x32, 0x29, 0x2d, // accurate colors) + 0x29, 0x25, 0x2B, 0x39, + 0x00, 0x01, 0x03, 0x10, + ST7735_GMCTRN1, 16 , // 2: Gamma Adjustments (neg. polarity), 16 args + delay: + 0x03, 0x1d, 0x07, 0x06, // (Not entirely necessary, but provides + 0x2E, 0x2C, 0x29, 0x2D, // accurate colors) + 0x2E, 0x2E, 0x37, 0x3F, + 0x00, 0x00, 0x02, 0x10, + ST77XX_NORON, ST_CMD_DELAY, // 3: Normal display on, no args, w/delay + 10, // 10 ms delay + ST77XX_DISPON, ST_CMD_DELAY, // 4: Main screen turn on, no args w/delay + 100 }; // 100 ms delay + +// clang-format on +static const char *const TAG = "st7735"; + +ST7735::ST7735(ST7735Model model, int width, int height, int colstart, int rowstart, boolean eightbitcolor, + boolean usebgr) { + model_ = model; + this->width_ = width; + this->height_ = height; + this->colstart_ = colstart; + this->rowstart_ = rowstart; + this->eightbitcolor_ = eightbitcolor; + this->usebgr_ = usebgr; +} + +void ST7735::setup() { + ESP_LOGCONFIG(TAG, "Setting up ST7735..."); + this->spi_setup(); + + this->dc_pin_->setup(); // OUTPUT + this->cs_->setup(); // OUTPUT + + this->dc_pin_->digital_write(true); + this->cs_->digital_write(true); + + this->init_reset_(); + delay(100); // NOLINT + + ESP_LOGD(TAG, " START"); + dump_config(); + ESP_LOGD(TAG, " END"); + + display_init_(RCMD1); + + if (this->model_ == INITR_GREENTAB) { + display_init_(RCMD2GREEN); + colstart_ == 0 ? colstart_ = 2 : colstart_; + rowstart_ == 0 ? rowstart_ = 1 : rowstart_; + } else if ((this->model_ == INITR_144GREENTAB) || (this->model_ == INITR_HALLOWING)) { + height_ == 0 ? height_ = ST7735_TFTHEIGHT_128 : height_; + width_ == 0 ? width_ = ST7735_TFTWIDTH_128 : width_; + display_init_(RCMD2GREEN144); + colstart_ == 0 ? colstart_ = 2 : colstart_; + rowstart_ == 0 ? rowstart_ = 3 : rowstart_; + } else if (this->model_ == INITR_MINI_160X80) { + height_ == 0 ? height_ = ST7735_TFTHEIGHT_160 : height_; + width_ == 0 ? width_ = ST7735_TFTWIDTH_80 : width_; + display_init_(RCMD2GREEN160X80); + colstart_ = 24; + rowstart_ = 0; // For default rotation 0 + } else { + // colstart, rowstart left at default '0' values + display_init_(RCMD2RED); + } + display_init_(RCMD3); + + uint8_t data = 0; + if (this->model_ != INITR_HALLOWING) { + uint8_t data = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY; + } + if (this->usebgr_) { + data = data | ST7735_MADCTL_BGR; + } else { + data = data | ST77XX_MADCTL_RGB; + } + sendcommand_(ST77XX_MADCTL, &data, 1); + + this->init_internal_(this->get_buffer_length()); + memset(this->buffer_, 0x00, this->get_buffer_length()); +} + +void ST7735::update() { + this->do_update_(); + this->write_display_data_(); +} + +int ST7735::get_height_internal() { return height_; } + +int ST7735::get_width_internal() { return width_; } + +size_t ST7735::get_buffer_length() { + if (this->eightbitcolor_) { + return size_t(this->get_width_internal()) * size_t(this->get_height_internal()); + } + return size_t(this->get_width_internal()) * size_t(this->get_height_internal()) * 2; +} + +void HOT ST7735::draw_absolute_pixel_internal(int x, int y, Color color) { + if (x >= this->get_width_internal() || x < 0 || y >= this->get_height_internal() || y < 0) + return; + + if (this->eightbitcolor_) { + const uint32_t color332 = display::ColorUtil::color_to_332(color); + uint16_t pos = (x + y * this->get_width_internal()); + this->buffer_[pos] = color332; + } else { + const uint32_t color565 = display::ColorUtil::color_to_565(color); + uint16_t pos = (x + y * this->get_width_internal()) * 2; + this->buffer_[pos++] = (color565 >> 8) & 0xff; + this->buffer_[pos] = color565 & 0xff; + } +} + +void ST7735::init_reset_() { + if (this->reset_pin_ != nullptr) { + this->reset_pin_->setup(); + this->reset_pin_->digital_write(true); + delay(1); + // Trigger Reset + this->reset_pin_->digital_write(false); + delay(10); + // Wake up + this->reset_pin_->digital_write(true); + } +} +const char *ST7735::model_str_() { + switch (this->model_) { + case INITR_GREENTAB: + return "ST7735 GREENTAB"; + case INITR_REDTAB: + return "ST7735 REDTAB"; + case INITR_BLACKTAB: + return "ST7735 BLACKTAB"; + case INITR_MINI_160X80: + return "ST7735 MINI160x80"; + default: + return "Unknown"; + } +} + +void ST7735::display_init_(const uint8_t *addr) { + uint8_t num_commands, cmd, num_args; + uint16_t ms; + + num_commands = pgm_read_byte(addr++); // Number of commands to follow + while (num_commands--) { // For each command... + cmd = pgm_read_byte(addr++); // Read command + num_args = pgm_read_byte(addr++); // Number of args to follow + ms = num_args & ST_CMD_DELAY; // If hibit set, delay follows args + num_args &= ~ST_CMD_DELAY; // Mask out delay bit + this->sendcommand_(cmd, addr, num_args); + addr += num_args; + + if (ms) { + ms = pgm_read_byte(addr++); // Read post-command delay time (ms) + if (ms == 255) + ms = 500; // If 255, delay for 500 ms + delay(ms); + } + } +} + +void ST7735::dump_config() { + LOG_DISPLAY("", "ST7735", this); + ESP_LOGCONFIG(TAG, " Model: %s", this->model_str_()); + LOG_PIN(" CS Pin: ", this->cs_); + LOG_PIN(" DC Pin: ", this->dc_pin_); + LOG_PIN(" Reset Pin: ", this->reset_pin_); + ESP_LOGD(TAG, " Buffer Size: %zu", this->get_buffer_length()); + ESP_LOGD(TAG, " Height: %d", this->height_); + ESP_LOGD(TAG, " Width: %d", this->width_); + ESP_LOGD(TAG, " ColStart: %d", this->colstart_); + ESP_LOGD(TAG, " RowStart: %d", this->rowstart_); + LOG_UPDATE_INTERVAL(this); +} + +void HOT ST7735::writecommand_(uint8_t value) { + this->enable(); + this->dc_pin_->digital_write(false); + this->write_byte(value); + this->dc_pin_->digital_write(true); + this->disable(); +} + +void HOT ST7735::writedata_(uint8_t value) { + this->dc_pin_->digital_write(true); + this->enable(); + this->write_byte(value); + this->disable(); +} + +void HOT ST7735::sendcommand_(uint8_t cmd, const uint8_t *data_bytes, uint8_t num_data_bytes) { + this->writecommand_(cmd); + this->senddata_(data_bytes, num_data_bytes); +} + +void HOT ST7735::senddata_(const uint8_t *data_bytes, uint8_t num_data_bytes) { + this->dc_pin_->digital_write(true); // pull DC high to indicate data + this->cs_->digital_write(false); + this->enable(); + for (uint8_t i = 0; i < num_data_bytes; i++) { + this->write_byte(pgm_read_byte(data_bytes++)); // write byte - SPI library + } + this->cs_->digital_write(true); + this->disable(); +} + +void HOT ST7735::write_display_data_() { + uint16_t offsetx = colstart_; + uint16_t offsety = rowstart_; + + uint16_t x1 = offsetx; + uint16_t x2 = x1 + get_width_internal() - 1; + uint16_t y1 = offsety; + uint16_t y2 = y1 + get_height_internal() - 1; + + this->enable(); + + // set column(x) address + this->dc_pin_->digital_write(false); + this->write_byte(ST77XX_CASET); + this->dc_pin_->digital_write(true); + this->spi_master_write_addr_(x1, x2); + + // set Page(y) address + this->dc_pin_->digital_write(false); + this->write_byte(ST77XX_RASET); + this->dc_pin_->digital_write(true); + this->spi_master_write_addr_(y1, y2); + + // Memory Write + this->dc_pin_->digital_write(false); + this->write_byte(ST77XX_RAMWR); + this->dc_pin_->digital_write(true); + + if (this->eightbitcolor_) { + for (int line = 0; line < this->get_buffer_length(); line = line + this->get_width_internal()) { + for (int index = 0; index < this->get_width_internal(); ++index) { + auto color332 = display::ColorUtil::to_color(this->buffer_[index + line], display::ColorOrder::COLOR_ORDER_RGB, + display::ColorBitness::COLOR_BITNESS_332, true); + + auto color = display::ColorUtil::color_to_565(color332); + + this->write_byte((color >> 8) & 0xff); + this->write_byte(color & 0xff); + } + } + } else { + this->write_array(this->buffer_, this->get_buffer_length()); + } + this->disable(); +} + +void ST7735::spi_master_write_addr_(uint16_t addr1, uint16_t addr2) { + static uint8_t BYTE[4]; + BYTE[0] = (addr1 >> 8) & 0xFF; + BYTE[1] = addr1 & 0xFF; + BYTE[2] = (addr2 >> 8) & 0xFF; + BYTE[3] = addr2 & 0xFF; + + this->dc_pin_->digital_write(true); + this->write_array(BYTE, 4); +} + +void ST7735::spi_master_write_color_(uint16_t color, uint16_t size) { + static uint8_t BYTE[1024]; + int index = 0; + for (int i = 0; i < size; i++) { + BYTE[index++] = (color >> 8) & 0xFF; + BYTE[index++] = color & 0xFF; + } + + this->dc_pin_->digital_write(true); + return write_array(BYTE, size * 2); +} + +} // namespace st7735 +} // namespace esphome