Function lcd_event

core/lcd.c:298–390

}

static void lcd_event(enum sched_item_id id) {
    uint32_t duration;
    sched_process_pending_dma(0);
    enum lcd_comp compare = lcd.control >> 12 & 3;
    switch (lcd.compare) {
        case LCD_FRONT_PORCH:
            if (lcd.VFP) {
                if (compare == LCD_FRONT_PORCH) {
                    lcd.ris |= 1 << 3;
                }
                duration = lcd.VFP * (lcd.HSW + lcd.HBP + lcd.CPL + lcd.HFP) * lcd.PCD;
                lcd.compare = LCD_SYNC;
                break;
            }
            fallthrough;
        default:
            fallthrough;
        case LCD_SYNC:
            if (compare == LCD_SYNC) {
                lcd.ris |= 1 << 3;
            }
            lcd.PPL =  ((lcd.timing[0] >>  2 &  0x3F) + 1) << 4;
            lcd.HSW =   (lcd.timing[0] >>  8 &  0xFF) + 1;
            lcd.HFP =   (lcd.timing[0] >> 16 &  0xFF) + 1;
            lcd.HBP =   (lcd.timing[0] >> 24 &  0xFF) + 1;
            lcd.LPP =   (lcd.timing[1] >>  0 & 0x3FF) + 1;
            lcd.VSW =   (lcd.timing[1] >> 10 &  0x3F) + 1;
            lcd.VFP =    lcd.timing[1] >> 16 &  0xFF;
            lcd.VBP =    lcd.timing[1] >> 24 &  0xFF;
            lcd.PCD =  ((lcd.timing[2] >>  0 &  0x1F) |
                        (lcd.timing[2] >> 27 &  0x1F) << 5) + 2;
            lcd.CLKSEL = lcd.timing[2] >>  5 &     1;
            lcd.ACB =   (lcd.timing[2] >>  6 &  0x1F) + 1;
            lcd.IVS =    lcd.timing[2] >> 11 &     1;
            lcd.IHS =    lcd.timing[2] >> 12 &     1;
            lcd.IPC =    lcd.timing[2] >> 13 &     1;
            lcd.IOE =    lcd.timing[2] >> 14 &     1;
            lcd.CPL =   (lcd.timing[2] >> 16 & 0x3FF) + 1;
            if (lcd.timing[2] >> 26 & 1) {
                lcd.PCD = 1;
            }
            lcd.LED =   (lcd.timing[3] >>  0 &  0x7F) + 1;
            lcd.LEE =    lcd.timing[3] >> 16 &     1;
            lcd.LCDBPP = lcd.control   >>  1 &     7;
            lcd.BGR =    lcd.control   >>  8 &     1;
            lcd.BEBO =   lcd.control   >>  9 &     1;
            lcd.BEPO =   lcd.control   >> 10 &     1;
            lcd.WTRMRK = lcd.control   >> 16 &     1;
            lcd.BPP = lcd.LCDBPP <= 5 ? lcd.LCDBPP : 4;
            lcd.PPF = 1 << (8 + lcd.WTRMRK - lcd.BPP);
            duration = ((lcd.VSW - 1) * (lcd.HSW + lcd.HBP + lcd.CPL + lcd.HFP) +
                        lcd.HSW) * lcd.PCD + 1;
            lcd.prefill = true;
            if (lcd.useDma) {
                lcd.pos = 0;
                lcd.curRow = lcd.curCol = 0;
                panel_vsync();
                sched_repeat_relative(SCHED_LCD_DMA, SCHED_LCD, duration, 0);