have fun

components/st7735/st7735.h

@@ -0,0 +1,149 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/spi/spi.h"
+#include "esphome/components/display/display_buffer.h"
+
+// ST7735 specific commands used in init
+#define ST7735_NOP			0x00
+#define ST7735_SWRESET		0x01
+#define ST7735_RDDID		0x04
+#define ST7735_RDDST		0x09
+
+#define ST7735_RDDPM		0x0A      // Read display power mode
+#define ST7735_RDD_MADCTL	0x0B      // Read display MADCTL
+#define ST7735_RDD_COLMOD	0x0C      // Read display pixel format
+#define ST7735_RDDIM		0x0D      // Read display image mode
+#define ST7735_RDDSM		0x0E      // Read display signal mode
+#define ST7735_RDDSR		0x0F      // Read display self-diagnostic result (ST7735)
+
+#define ST7735_SLPIN		0x10
+#define ST7735_SLPOUT		0x11
+#define ST7735_PTLON		0x12
+#define ST7735_NORON		0x13
+
+#define ST7735_INVOFF		0x20
+#define ST7735_INVON		0x21
+#define ST7735_GAMSET		0x26      // Gamma set
+#define ST7735_DISPOFF		0x28
+#define ST7735_DISPON		0x29
+#define ST7735_CASET		0x2A
+#define ST7735_RASET		0x2B
+#define ST7735_RAMWR		0x2C
+#define ST7735_RGBSET		0x2D      // Color setting for 4096, 64K and 262K colors
+#define ST7735_RAMRD		0x2E
+
+#define ST7735_PTLAR		0x30
+#define ST7735_VSCRDEF		0x33      // Vertical scrolling definition (ST7735)
+#define ST7735_TEOFF		0x34      // Tearing effect line off
+#define ST7735_TEON			0x35      // Tearing effect line on
+#define ST7735_MADCTL		0x36      // Memory data access control
+#define ST7735_IDMOFF		0x38      // Idle mode off
+#define ST7735_IDMON		0x39      // Idle mode on
+#define ST7735_RAMWRC		0x3C      // Memory write continue (ST7735)
+#define ST7735_RAMRDC		0x3E      // Memory read continue (ST7735)
+#define ST7735_COLMOD		0x3A
+
+#define ST7735_RAMCTRL		0xB0      // RAM control
+#define ST7735_RGBCTRL		0xB1      // RGB control
+#define ST7735_PORCTRL		0xB2      // Porch control
+#define ST7735_FRCTRL1		0xB3      // Frame rate control
+#define ST7735_PARCTRL		0xB5      // Partial mode control
+#define ST7735_GCTRL		0xB7      // Gate control
+#define ST7735_GTADJ		0xB8      // Gate on timing adjustment
+#define ST7735_DGMEN		0xBA      // Digital gamma enable
+#define ST7735_VCOMS		0xBB      // VCOMS setting
+#define ST7735_LCMCTRL		0xC0      // LCM control
+#define ST7735_IDSET		0xC1      // ID setting
+#define ST7735_VDVVRHEN		0xC2      // VDV and VRH command enable
+#define ST7735_VRHS			0xC3      // VRH set
+#define ST7735_VDVSET		0xC4      // VDV setting
+#define ST7735_VCMOFSET		0xC5      // VCOMS offset set
+#define ST7735_FRCTR2		0xC6      // FR Control 2
+#define ST7735_CABCCTRL		0xC7      // CABC control
+#define ST7735_REGSEL1		0xC8      // Register value section 1
+#define ST7735_REGSEL2		0xCA      // Register value section 2
+#define ST7735_PWMFRSEL		0xCC      // PWM frequency selection
+#define ST7735_PWCTRL1		0xD0      // Power control 1
+#define ST7735_VAPVANEN		0xD2      // Enable VAP/VAN signal output
+#define ST7735_CMD2EN		0xDF      // Command 2 enable
+#define ST7735_PVGAMCTRL	0xE0      // Positive voltage gamma control
+#define ST7735_NVGAMCTRL	0xE1      // Negative voltage gamma control
+#define ST7735_DGMLUTR		0xE2      // Digital gamma look-up table for red
+#define ST7735_DGMLUTB		0xE3      // Digital gamma look-up table for blue
+#define ST7735_GATECTRL		0xE4      // Gate control
+#define ST7735_SPI2EN		0xE7      // SPI2 enable
+#define ST7735_PWCTRL2		0xE8      // Power control 2
+#define ST7735_EQCTRL		0xE9      // Equalize time control
+#define ST7735_PROMCTRL		0xEC      // Program control
+#define ST7735_PROMEN		0xFA      // Program mode enable
+#define ST7735_NVMSET		0xFC      // NVM setting
+#define ST7735_PROMACT		0xFE      // Program action
+
+// Some ready-made 16-bit ('565') color settings:
+#define ST77XX_BLACK      0x0000
+#define ST77XX_WHITE      0xFFFF
+#define ST77XX_RED        0xF800
+#define ST77XX_GREEN      0x07E0
+#define ST77XX_BLUE       0x001F
+#define ST77XX_CYAN       0x07FF
+#define ST77XX_MAGENTA    0xF81F
+#define ST77XX_YELLOW     0xFFE0
+#define ST77XX_ORANGE     0xFC00
+
+// Some ready-made 16-bit ('565') color settings:
+#define ST7735_BLACK      ST77XX_BLACK
+#define ST7735_WHITE      ST77XX_WHITE
+#define ST7735_RED        ST77XX_RED
+#define ST7735_GREEN      ST77XX_GREEN
+#define ST7735_BLUE       ST77XX_BLUE
+#define ST7735_CYAN       ST77XX_CYAN
+#define ST7735_MAGENTA    ST77XX_MAGENTA
+#define ST7735_YELLOW     ST77XX_YELLOW
+#define ST7735_ORANGE     ST77XX_ORANGE
+
+namespace esphome {
+namespace st7735 {
+
+class ST7735 : public PollingComponent, public display::DisplayBuffer, 
+                 public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_HIGH, spi::CLOCK_PHASE_TRAILING,
+                                         spi::DATA_RATE_8MHZ> {
+ public:
+  void set_dc_pin(GPIOPin *dc_pin) { this->dc_pin_ = dc_pin; }
+  void set_reset_pin(GPIOPin *reset_pin) { this->reset_pin_ = reset_pin; }
+  
+  // ========== INTERNAL METHODS ==========
+  // (In most use cases you won't need these)
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override;
+  void update() override;
+  void loop() override;
+  
+  void write_display_data();
+  
+ protected:
+  GPIOPin *dc_pin_;
+  GPIOPin *reset_pin_{nullptr};
+  
+  void displayInit(const uint8_t *addr);
+  void sendcommand(uint8_t cmd, const uint8_t* dataBytes, uint8_t numDataBytes);
+  void senddata(const uint8_t* dataBytes, uint8_t numDataBytes);
+
+  void init_reset_();
+  void writecommand(uint8_t value);
+  void writedata(uint8_t value);
+  
+  void spi_master_write_addr(uint16_t addr1, uint16_t addr2);
+  void spi_master_write_color(uint16_t color, uint16_t size);
+  
+  void draw_absolute_pixel_internal(int x, int y, Color color) override;
+
+  int get_height_internal() override;
+  int get_width_internal() override;
+  size_t get_buffer_length_();
+};
+
+
+}  // namespace st7735
+}  // namespace esphome