81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
#pragma once
|
|
|
|
#include "hardware/spi.h"
|
|
#include "hardware/gpio.h"
|
|
|
|
namespace pimoroni {
|
|
|
|
class ST7789 {
|
|
spi_inst_t *spi = spi0;
|
|
|
|
uint32_t dma_channel;
|
|
|
|
// screen properties
|
|
uint16_t width;
|
|
uint16_t height;
|
|
uint16_t row_stride;
|
|
|
|
// interface pins with our standard defaults where appropriate
|
|
int8_t cs = 17;
|
|
int8_t dc = 16;
|
|
int8_t sck = 18;
|
|
int8_t mosi = 19;
|
|
int8_t miso = -1; // we generally don't use this pin
|
|
int8_t bl = 20;
|
|
int8_t vsync = -1; // only available on some products
|
|
|
|
uint32_t spi_baud = 64 * 1024 * 1024;
|
|
|
|
public:
|
|
// frame buffer where pixel data is stored
|
|
uint16_t *frame_buffer;
|
|
|
|
public:
|
|
ST7789(uint16_t width, uint16_t height, uint16_t *frame_buffer) :
|
|
width(width), height(height), frame_buffer(frame_buffer) {}
|
|
|
|
ST7789(uint16_t width, uint16_t height, uint16_t *frame_buffer,
|
|
spi_inst_t *spi,
|
|
uint8_t cs, uint8_t dc, uint8_t sck, uint8_t mosi, uint8_t miso = -1) :
|
|
spi(spi),
|
|
width(width), height(height),
|
|
cs(cs), dc(dc), sck(sck), mosi(mosi), miso(miso), frame_buffer(frame_buffer) {}
|
|
|
|
void init(bool auto_init_sequence = true);
|
|
|
|
void command(uint8_t command, size_t len = 0, const char *data = NULL);
|
|
void vsync_callback(gpio_irq_callback_t callback);
|
|
void update(bool dont_block = false);
|
|
void set_backlight(uint8_t brightness);
|
|
|
|
enum reg {
|
|
SWRESET = 0x01,
|
|
TEON = 0x35,
|
|
MADCTL = 0x36,
|
|
COLMOD = 0x3A,
|
|
GCTRL = 0xB7,
|
|
VCOMS = 0xBB,
|
|
LCMCTRL = 0xC0,
|
|
VDVVRHEN = 0xC2,
|
|
VRHS = 0xC3,
|
|
VDVS = 0xC4,
|
|
FRCTRL2 = 0xC6,
|
|
PWRCTRL1 = 0xD0,
|
|
FRMCTR1 = 0xB1,
|
|
FRMCTR2 = 0xB2,
|
|
GMCTRP1 = 0xE0,
|
|
GMCTRN1 = 0xE1,
|
|
INVOFF = 0x20,
|
|
SLPOUT = 0x11,
|
|
DISPON = 0x29,
|
|
GAMSET = 0x26,
|
|
DISPOFF = 0x28,
|
|
RAMWR = 0x2C,
|
|
INVON = 0x21,
|
|
CASET = 0x2A,
|
|
RASET = 0x2B
|
|
};
|
|
};
|
|
|
|
}
|