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Add support for SSD1680 e-paper controller

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The driver is based on the construction of IL3820 (SSD1608), which is very similar from command point of view.
It is tested on ESP32-S2 MCU and GoodDisplay GDEY029T94.
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AVartanyan 2022-09-26 23:49:24 +03:00 • committed by GitHub
parent 26fe6e7703
commit f4fd82bd7e
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11 changed files with 522 additions and 4 deletions
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lvgl_tft/ssd1680.h Normal file
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/**
* @file ssd1680.h
*
*/
#ifndef SSD1680_H
#define SSD1680_H
#ifdef __cplusplus
extern "C"
{
#endif
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
#include "lvgl.h"
#else
#include "lvgl/lvgl.h"
#endif
#include "sdkconfig.h"
#define EPD_PANEL_WIDTH LV_HOR_RES_MAX /* 128 */
#define EPD_PANEL_HEIGHT LV_VER_RES_MAX /* 296 */
/* 128 = panel width */
#define SSD1680_COLUMNS (EPD_PANEL_WIDTH / 8)
#define SSD1680_DC_PIN CONFIG_LV_DISP_PIN_DC
#define SSD1680_RST_PIN CONFIG_LV_DISP_PIN_RST
#define SSD1680_USE_RST CONFIG_LV_DISP_USE_RST
#define SSD1680_BUSY_PIN CONFIG_LV_DISP_PIN_BUSY
#define SSD1680_BUSY_LEVEL 1 //chip is busy if the pin level is high
/* SSD1680 commands */
#define SSD1680_CMD_GDO_CTRL 0x01 //Driver output control
#define SSD1680_CMD_GDV_CTRL 0x03
#define SSD1680_CMD_SDV_CTRL 0x04
#define SSD1680_CMD_SOFTSTART 0x0c
#define SSD1680_CMD_GSCAN_START 0x0f
#define SSD1680_CMD_SLEEP_MODE1 0x10 //enter deep sleep 1 - retain RAM
#define SSD1680_CMD_SLEEP_MODE2 0x11 //enter deep sleep 2 - cannot retain RAM
//After entering Deep sleep Mode, BUSY will stay high.
//To Exit Deep Sleep a HWRESET should be sent.
#define SSD1680_CMD_ENTRY_MODE 0x11 //Data entry mode
#define SSD1680_CMD_SW_RESET 0x12 //SWRESET
#define SSD1680_CMD_TSENS_CTRL 0x1a
#define SSD1680_CMD_READ_INT_TEMP 0x18 //Read built-in temperature sensor
#define SSD1680_CMD_MASTER_ACTIVATION 0x20 //Activate Display Update Sequence
#define SSD1680_CMD_UPDATE_CTRL1 0x21 //Display update control
#define SSD1680_CMD_UPDATE_CTRL2 0x22 //Display Update Control
#define SSD1680_CMD_WRITE1_RAM 0x24 //Write Black (0) and Wite (1) image to RAM
#define SSD1680_CMD_WRITE2_RAM 0x26 //Write RED (1) and NonRED (0) image to RAM
#define SSD1680_CMD_VCOM_SENSE 0x28
#define SSD1680_CMD_VCOM_SENSE_DURATON 0x29
#define SSD1680_CMD_PRGM_VCOM_OTP 0x2a
#define SSD1680_CMD_VCOM_VOLTAGE 0x2c
#define SSD1680_CMD_PRGM_WS_OTP 0x30
#define SSD1680_CMD_UPDATE_LUT 0x32
#define SSD1680_CMD_PRGM_OTP_SELECTION 0x36
#define SSD1680_CMD_WRITE_DISPL_OPT 0x37
#define SSD1680_CMD_BWF_CTRL 0x3c //BorderWavefrom
#define SSD1680_CMD_RAM_XPOS_CTRL 0x44 //set Ram-X address start/end position
#define SSD1680_CMD_RAM_YPOS_CTRL 0x45 //set Ram-Y address start/end position
#define SSD1680_CMD_RAM_XPOS_CNTR 0x4e //set RAM x address count to 0;
#define SSD1680_CMD_RAM_YPOS_CNTR 0x4f //set RAM y address count to 0X199;
/* Data entry sequence modes */
#define SSD1680_DATA_ENTRY_MASK 0x07
#define SSD1680_DATA_ENTRY_XDYDX 0x00
#define SSD1680_DATA_ENTRY_XIYDX 0x01
#define SSD1680_DATA_ENTRY_XDYIX 0x02
#define SSD1680_DATA_ENTRY_XIYIX 0x03
#define SSD1680_DATA_ENTRY_XDYDY 0x04
#define SSD1680_DATA_ENTRY_XIYDY 0x05
#define SSD1680_DATA_ENTRY_XDYIY 0x06
#define SSD1680_DATA_ENTRY_XIYIY 0x07
/* Options for display update */
#define SSD1680_CTRL1_INITIAL_UPDATE_LL 0x00
#define SSD1680_CTRL1_INITIAL_UPDATE_LH 0x01
#define SSD1680_CTRL1_INITIAL_UPDATE_HL 0x02
#define SSD1680_CTRL1_INITIAL_UPDATE_HH 0x03
/* Options for display update sequence */
#define SSD1680_CTRL2_ENABLE_CLK 0x80
#define SSD1680_CTRL2_ENABLE_ANALOG 0x40
#define SSD1680_CTRL2_TO_INITIAL 0x08
#define SSD1680_CTRL2_TO_PATTERN 0x04
#define SSD1680_CTRL2_DISABLE_ANALOG 0x02
#define SSD1680_CTRL2_DISABLE_CLK 0x01
#define SSD1680_SLEEP_MODE_DSM 0x01
#define SSD1680_SLEEP_MODE_PON 0x00
/* time constants in ms */
#define SSD1680_RESET_DELAY 20 //At least 10ms delay
#define SSD1680_BUSY_DELAY 1
// normal wait time max 20 times x 10ms
#define SSD1680_WAIT 20
void ssd1680_init(void);
void ssd1680_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map);
void ssd1680_rounder(lv_disp_drv_t * disp_drv, lv_area_t *area);
void ssd1680_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t* buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y, lv_color_t color, lv_opa_t opa);
void ssd1680_deep_sleep(void);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __SSD1680_REGS_H__ */