229 lines
7.6 KiB
C
229 lines
7.6 KiB
C
#include "st7789_lcd.h"
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uint8_t st7789_init_seq_zjy_320_240[] = {
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0x05, 0xB2, 0x0C, 0x0C, 0x00, 0x33, 0x33, // Porch Setting
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0x01, 0xB7, 0x35, // Gate Control
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0x01, 0xBB, 0x32, // VCOM Setting // Factory 0x19 -> 0.725V
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0x01, 0xC0, 0x2C, // LCM Control
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0x01, 0xC2, 0x01, // VDV and VRH Command Enable
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0x01, 0xC3, 0x15, // VRH Set // Factory 12H
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0x01, 0xC4, 0x20, // VDV Set
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0x01, 0xC6, 0x0F, // Frame Rate Control in Normal Mode
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0x02, 0xD0, 0xA4, 0xA1, // Power Control 1
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0x0E, 0xE0, 0xD0, 0x08, 0x0E, 0x09, 0x09, 0x05,
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0x31, 0x33, 0x48, 0x17, 0x14, 0x15, 0x31,
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0x34, // Positive Voltage Gamma Control
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0x0E, 0xE1, 0xD0, 0x08, 0x0E, 0x09, 0x09, 0x15,
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0x31, 0x33, 0x48, 0x17, 0x14, 0x15, 0x31,
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0x34, // Negative Voltage Gamma Control
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0x00, 0x21, // Inversion On
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};
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uint8_t st7789_init_seq_zjy_240_240[] = {
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0x05, 0xB2, 0x0C, 0x0C, 0x00, 0x33, 0x33, // Porch Setting
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0x01, 0xB7, 0x35, // Gate Control
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0x01, 0xBB, 0x19, // VCOM Setting // Factory 0x19 -> 0.725V
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0x01, 0xC0, 0x2C, // LCM Control
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0x01, 0xC2, 0x01, // VDV and VRH Command Enable
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0x01, 0xC3, 0x12, // VRH Set // Factory 12H
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0x01, 0xC4, 0x20, // VDV Set
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0x01, 0xC6, 0x0F, // Frame Rate Control in Normal Mode
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0x02, 0xD0, 0xA4, 0xA1, // Power Control 1
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0x0E, 0xE0, 0xD0, 0x04, 0x0D, 0x11, 0x13, 0x2B,
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0x3F, 0x54, 0x4C, 0x18, 0x0D, 0x0B, 0x1F,
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0x23, // Positive Voltage Gamma Control
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0x0E, 0xE1, 0xD0, 0x04, 0x0C, 0x11, 0x13, 0x2C,
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0x3F, 0x44, 0x51, 0x2F, 0x1F, 0x1F, 0x20,
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0x23, // Negative Voltage Gamma Control
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0x00, 0x21, // Inversion On
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};
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uint8_t st7789_init_seq_zjy_240_135[] = {
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0x05, 0xB2, 0x05, 0x05, 0x00, 0x33, 0x33, // Porch Setting
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0x01, 0xB7, 0x23, // Gate Control
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0x01, 0xBB, 0x22, // VCOM Setting // Factory 0x19 -> 0.725V
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0x01, 0xC0, 0x2C, // LCM Control
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0x01, 0xC2, 0x01, // VDV and VRH Command Enable
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0x01, 0xC3, 0x13, // VRH Set // Factory 12H
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0x01, 0xC4, 0x20, // VDV Set
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0x01, 0xC6, 0x0F, // Frame Rate Control in Normal Mode
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0x02, 0xD0, 0xA4, 0xA1, // Power Control 1
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0x0E, 0xE0, 0x70, 0x06, 0x0C, 0x08, 0x09, 0x27,
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0x2E, 0x34, 0x46, 0x37, 0x13, 0x13, 0x25,
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0x2A, // Positive Voltage Gamma Control
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0x0E, 0xE1, 0x70, 0x04, 0x08, 0x09, 0x07, 0x03,
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0x2C, 0x42, 0x42, 0x38, 0x14, 0x14, 0x27,
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0x2C, // Negative Voltage Gamma Control
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0x00, 0x21, // Inversion On
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};
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st7789_ret_t _st7789_init_seq(st7789_lcd_t *lcd) {
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uint16_t i = 0;
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while(i < sizeof(ST7789_PANEL_SELECTION)) {
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if(lcd->cb.write_cmd_cb(lcd->user_data, &ST7789_PANEL_SELECTION[i + 1],
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ST7789_PANEL_SELECTION[i] + 1) != ST7789_OK) {
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return ST7789_ERROR;
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};
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i += ST7789_PANEL_SELECTION[i] + 2;
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}
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return ST7789_OK;
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}
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st7789_ret_t _st7789_window(st7789_lcd_t *lcd, uint16_t x_start, uint16_t x_end,
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uint16_t y_start, uint16_t y_end) {
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uint16_t real_x_start, real_x_end, real_y_start, real_y_end;
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uint16_t x_offset, y_offset;
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switch(lcd->config.direction) {
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case ST7789_DIR_0:
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x_offset = PANEL_X_OFFSET;
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y_offset = PANEL_Y_OFFSET;
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break;
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case ST7789_DIR_90:
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x_offset = PANEL_Y_OFFSET;
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y_offset = PANEL_X_OFFSET;
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break;
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case ST7789_DIR_180:
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x_offset = 240 - (PANEL_X_OFFSET + PANEL_X_WIDTH);
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y_offset = 320 - (PANEL_Y_OFFSET + PANEL_Y_WIDTH);
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break;
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case ST7789_DIR_270:
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x_offset = 320 - (PANEL_Y_OFFSET + PANEL_Y_WIDTH);
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y_offset = 240 - (PANEL_X_OFFSET + PANEL_X_WIDTH);
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break;
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default:
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x_offset = 0;
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y_offset = 0;
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}
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real_x_start = x_start + x_offset;
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real_x_end = x_end + x_offset;
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real_y_start = y_start + y_offset;
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real_y_end = y_end + y_offset;
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uint8_t tx_buf[5] = {0x2A, ((uint8_t)(real_x_start >> 0x08U) & 0xFFU),
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(real_x_start & 0xFFU),
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((uint8_t)(real_x_end >> 0x08U) & 0xFFU),
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(real_x_end & 0xFFU)};
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if(lcd->cb.write_cmd_cb(lcd->user_data, tx_buf, 0x05) != ST7789_OK) {
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return ST7789_ERROR;
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}
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tx_buf[0] = 0x2B;
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tx_buf[1] = ((uint8_t)(real_y_start >> 0x08U) & 0xFFU);
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tx_buf[2] = (real_y_start & 0xFFU);
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tx_buf[3] = ((uint8_t)(real_y_end >> 0x08U) & 0xFFU);
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tx_buf[4] = (real_y_end & 0xFFU);
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if(lcd->cb.write_cmd_cb(lcd->user_data, tx_buf, 0x05) != ST7789_OK) {
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return ST7789_ERROR;
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}
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return ST7789_OK;
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}
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st7789_ret_t _st7789_reset(st7789_lcd_t *lcd) {
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return lcd->cb.reset_cb(lcd->user_data);
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}
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st7789_ret_t st7789_lcd_init(st7789_lcd_t *lcd) {
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if(_st7789_reset(lcd) != ST7789_OK) return ST7789_ERROR;
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if(_st7789_init_seq(lcd) != ST7789_OK) return ST7789_ERROR;
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if(st7789_lcd_config(lcd, &lcd->config) != ST7789_OK) return ST7789_ERROR;
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if(st7789_lcd_sleep(lcd, 0) != ST7789_OK) return ST7789_ERROR;
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if(st7789_lcd_display(lcd, 1) != ST7789_OK) return ST7789_ERROR;
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return ST7789_OK;
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}
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st7789_ret_t st7789_lcd_load(st7789_lcd_t *lcd, uint8_t *data, uint16_t x_start,
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uint16_t x_end, uint16_t y_start, uint16_t y_end) {
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uint32_t pixel_count = (y_end - y_start + 1) * (x_end - x_start + 1);
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uint32_t data_len = 0;
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switch(lcd->config.pix_fmt) {
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case ST7789_RGB444:
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data_len = pixel_count * 3 / 2;
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break;
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case ST7789_RGB565:
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data_len = pixel_count * 2;
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break;
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case ST7789_RGB666:
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case ST7789_RGB888:
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data_len = pixel_count * 3;
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break;
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default:
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data_len = pixel_count;
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break;
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}
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// Set cursor
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if(_st7789_window(lcd, x_start, x_end, y_start, y_end) != ST7789_OK) {
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return ST7789_ERROR;
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}
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uint8_t command = 0x2C; // Memory Write
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if(lcd->cb.write_cmd_cb(lcd->user_data, &command, 0x01) != ST7789_OK) {
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return ST7789_ERROR;
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}
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// Write pixel data
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if(lcd->cb.write_data_cb(lcd->user_data, data, data_len) != ST7789_OK) {
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return ST7789_ERROR;
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}
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return ST7789_OK;
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}
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st7789_ret_t st7789_lcd_sleep(st7789_lcd_t *lcd, uint8_t sleep_mode) {
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// Write SLPIN or SLPOUT command.
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uint8_t command = sleep_mode ? 0x10 : 0x11;
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return lcd->cb.write_cmd_cb(lcd->user_data, &command, 0x01);
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}
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st7789_ret_t st7789_lcd_display(st7789_lcd_t *lcd, uint8_t display_on) {
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// write display_on command;
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uint8_t command = display_on ? 0x29 : 0x28;
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if(lcd->cb.write_cmd_cb(lcd->user_data, &command, 0x01) != ST7789_OK) {
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return ST7789_ERROR;
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}
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if(lcd->cb.backlight_cb(lcd->user_data, display_on) != ST7789_OK) {
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return ST7789_ERROR;
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}
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return ST7789_OK;
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}
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st7789_ret_t st7789_lcd_config(st7789_lcd_t *lcd, st7789_config_t *config) {
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lcd->config.direction = config->direction;
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// Write inversion command.
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uint8_t command[2] = { config->inversion ? 0x20 : 0x21, 0x00 };
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if(lcd->cb.write_cmd_cb(lcd->user_data, command, 0x01) != ST7789_OK) {
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return ST7789_ERROR;
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}
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lcd->config.inversion = config->inversion;
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command[0] = 0x3A;
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command[1] = config->pix_fmt;
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if(lcd->cb.write_cmd_cb(lcd->user_data, command, 0x02) != ST7789_OK) {
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return ST7789_ERROR;
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}
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lcd->config.pix_fmt = config->pix_fmt;
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command[0] = 0x36;
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command[1] = config->direction;
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if(!config->bgr_mode) {
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command[1] &= ~0x08U;
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}
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return lcd->cb.write_cmd_cb(lcd->user_data, command, 0x02);
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} |