9ee177b684
We don't change previous functionality by adding a helper function that sets the user offsets when initializing the display
150 lines
4.9 KiB
C
150 lines
4.9 KiB
C
/**
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* @file st7789.h
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*
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* Mostly taken from lbthomsen/esp-idf-littlevgl github.
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*/
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#ifndef ST7789_H
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#define ST7789_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#ifdef LV_LVGL_H_INCLUDE_SIMPLE
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#include "lvgl.h"
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#else
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#include "lvgl/lvgl.h"
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#endif
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/* For SPI transfers */
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#include "lvgl_helpers.h"
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/* For ST7789 particular configurations */
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#include "display_config.h"
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/* ST7789 commands */
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#define ST7789_NOP 0x00
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#define ST7789_SWRESET 0x01
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#define ST7789_RDDID 0x04
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#define ST7789_RDDST 0x09
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#define ST7789_RDDPM 0x0A // Read display power mode
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#define ST7789_RDD_MADCTL 0x0B // Read display MADCTL
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#define ST7789_RDD_COLMOD 0x0C // Read display pixel format
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#define ST7789_RDDIM 0x0D // Read display image mode
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#define ST7789_RDDSM 0x0E // Read display signal mode
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#define ST7789_RDDSR 0x0F // Read display self-diagnostic result (ST7789V)
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#define ST7789_SLPIN 0x10
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#define ST7789_SLPOUT 0x11
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#define ST7789_PTLON 0x12
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#define ST7789_NORON 0x13
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#define ST7789_INVOFF 0x20
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#define ST7789_INVON 0x21
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#define ST7789_GAMSET 0x26 // Gamma set
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#define ST7789_DISPOFF 0x28
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#define ST7789_DISPON 0x29
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#define ST7789_CASET 0x2A
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#define ST7789_RASET 0x2B
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#define ST7789_RAMWR 0x2C
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#define ST7789_RGBSET 0x2D // Color setting for 4096, 64K and 262K colors
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#define ST7789_RAMRD 0x2E
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#define ST7789_PTLAR 0x30
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#define ST7789_VSCRDEF 0x33 // Vertical scrolling definition (ST7789V)
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#define ST7789_TEOFF 0x34 // Tearing effect line off
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#define ST7789_TEON 0x35 // Tearing effect line on
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#define ST7789_MADCTL 0x36 // Memory data access control
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#define ST7789_IDMOFF 0x38 // Idle mode off
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#define ST7789_IDMON 0x39 // Idle mode on
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#define ST7789_RAMWRC 0x3C // Memory write continue (ST7789V)
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#define ST7789_RAMRDC 0x3E // Memory read continue (ST7789V)
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#define ST7789_COLMOD 0x3A
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#define ST7789_RAMCTRL 0xB0 // RAM control
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#define ST7789_RGBCTRL 0xB1 // RGB control
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#define ST7789_PORCTRL 0xB2 // Porch control
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#define ST7789_FRCTRL1 0xB3 // Frame rate control
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#define ST7789_PARCTRL 0xB5 // Partial mode control
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#define ST7789_GCTRL 0xB7 // Gate control
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#define ST7789_GTADJ 0xB8 // Gate on timing adjustment
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#define ST7789_DGMEN 0xBA // Digital gamma enable
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#define ST7789_VCOMS 0xBB // VCOMS setting
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#define ST7789_LCMCTRL 0xC0 // LCM control
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#define ST7789_IDSET 0xC1 // ID setting
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#define ST7789_VDVVRHEN 0xC2 // VDV and VRH command enable
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#define ST7789_VRHS 0xC3 // VRH set
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#define ST7789_VDVSET 0xC4 // VDV setting
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#define ST7789_VCMOFSET 0xC5 // VCOMS offset set
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#define ST7789_FRCTR2 0xC6 // FR Control 2
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#define ST7789_CABCCTRL 0xC7 // CABC control
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#define ST7789_REGSEL1 0xC8 // Register value section 1
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#define ST7789_REGSEL2 0xCA // Register value section 2
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#define ST7789_PWMFRSEL 0xCC // PWM frequency selection
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#define ST7789_PWCTRL1 0xD0 // Power control 1
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#define ST7789_VAPVANEN 0xD2 // Enable VAP/VAN signal output
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#define ST7789_CMD2EN 0xDF // Command 2 enable
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#define ST7789_PVGAMCTRL 0xE0 // Positive voltage gamma control
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#define ST7789_NVGAMCTRL 0xE1 // Negative voltage gamma control
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#define ST7789_DGMLUTR 0xE2 // Digital gamma look-up table for red
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#define ST7789_DGMLUTB 0xE3 // Digital gamma look-up table for blue
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#define ST7789_GATECTRL 0xE4 // Gate control
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#define ST7789_SPI2EN 0xE7 // SPI2 enable
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#define ST7789_PWCTRL2 0xE8 // Power control 2
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#define ST7789_EQCTRL 0xE9 // Equalize time control
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#define ST7789_PROMCTRL 0xEC // Program control
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#define ST7789_PROMEN 0xFA // Program mode enable
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#define ST7789_NVMSET 0xFC // NVM setting
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#define ST7789_PROMACT 0xFE // Program action
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/**
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* Initialize the ST7789 display controller with default configuration
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*
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* @param drv Pointer to lv_disp_drv_t being used
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*/
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void st7789_init(lv_disp_drv_t *drv);
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/**
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* Send buffer content to display
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*
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* @param drv Pointer to lv_disp_drv_t being used
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* @param area Pointer to area to be sent
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* @param color_map Pointer to color map
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*/
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void st7789_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map);
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/**
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* Set display buffer offset at x axis
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*/
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void st7789_set_x_offset(const uint16_t offset);
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/**
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* Set display buffer offset at y axis
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*/
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void st7789_set_y_offset(const uint16_t offset);
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/**
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* Get display buffer offset at x axis
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*/
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uint16_t st7789_x_offset(void);
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/**
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* Get display buffer offset at y axis
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*/
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uint16_t st7789_y_offset(void);
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/**
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* Display updated callback
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*
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* @param drv Pointer to lv_disp_drv_t being used
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*/
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void st7789_update_cb(lv_disp_drv_t *drv);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* ST7789_H */
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