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ensure valid vertical scroll

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SSD1963 needs NORMON or invalid VSP in REV modes
This commit is contained in:
prenticedavid
2016-03-20 15:16:24 +00:00
parent a00ffa4dc2
commit 5bda01fda5
1 changed files with 13 additions and 3 deletions
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16
MCUFRIEND_kbv.cpp
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@@ -300,6 +300,7 @@ void MCUFRIEND_kbv::setRotation(uint8_t r)
common_BGR:
WriteCmdParamN(is8347 ? 0x16 : 0x36, 1, &val);
_lcd_madctl = val;
// if (_lcd_ID == 0x1963) WriteCmdParamN(0x13, 0, NULL); //NORMAL mode
}
// cope with 9320 variants
else {
@@ -524,7 +525,8 @@ void MCUFRIEND_kbv::vertScroll(int16_t top, int16_t scrollines, int16_t offset)
int16_t bfa = HEIGHT - top - scrollines; // bottom fixed area
int16_t vsp;
int16_t sea = top;
vsp = top + offset; // vertical start position
if (offset <= -scrollines || offset >= scrollines) offset = 0; //valid scroll
vsp = top + offset; // vertical start position
if (offset < 0)
vsp += scrollines; //keep in unsigned range
sea = top + scrollines - 1;
@@ -548,9 +550,17 @@ void MCUFRIEND_kbv::vertScroll(int16_t top, int16_t scrollines, int16_t offset)
d[4] = bfa >> 8; //BFA
d[5] = bfa;
WriteCmdParamN(is8347 ? 0x0E : 0x33, 6, d);
d[0] = vsp >> 8; //VSP
if (offset == 0 && rotation > 1) vsp = top + scrollines; //make non-valid
d[0] = vsp >> 8; //VSP
d[1] = vsp;
WriteCmdParamN(is8347 ? 0x14 : 0x37, 2, d);
/*
if (offset == 0 && _lcd_ID == 0x1963) {
// if offset == 0 then vsp = top which sounds fine to me
// the SSD1963 is not happy in REV modes. So we call NORMON
WriteCmdParamN(0x13, 0, NULL); //NORMAL i.e. disable scroll
}
*/
return;
}
// cope with 9320 style variants:
@@ -863,7 +873,7 @@ void MCUFRIEND_kbv::begin(uint16_t ID)
init_table16(SSD1289_regValues, sizeof(SSD1289_regValues));
break;
#ifdef SUPPORT_1963
#if defined(SUPPORT_1963) && USING_16BIT_BUS
case 0x1963:
_lcd_capable = AUTO_READINC | MIPI_DCS_REV1 | READ_NODUMMY | INVERT_SS | INVERT_RGB;
// from NHD 5.0" 8-bit