Scroll pt. 1

This commit is contained in:
Attila Body 2020-02-14 19:39:15 +01:00
parent bec095e7d0
commit 22982db966
4 changed files with 139 additions and 60 deletions

View file

@ -13,6 +13,8 @@
#define LCD_REG (*((volatile unsigned short *) 0x60000000)) /* DC = 0 */
#define LCD_RAM (*((volatile unsigned short *) 0x60080000)) /* DC = 1 */
#define RGB2U16(R,G,B) ((R & 0xf8) << 8 | (G & 0xfc) << 3 | (B & 0xf8) >> 3)
#define SPLIT(x) ((uint8_t)(x >> 8)), ((uint8_t)x)
Ili9341Fsmc::Ili9341Fsmc(volatile uint16_t *reg, volatile uint16_t *ram,
DMA_TypeDef *dma, uint32_t dmaStream,
@ -56,6 +58,7 @@ Ili9341Fsmc::Ili9341Fsmc(volatile uint16_t *reg, volatile uint16_t *ram,
WriteCmd(ILI9341_SLEEP_OUT);
LL_mDelay(100);
WriteCmd(ILI9341_DISPLAY_ON);
WriteCmd(ILI9341_VERTICAL_SCROLLING_DEFINITION, {0x00, 0x00, SPLIT(m_height), 0x00, 0x00});
}
void Ili9341Fsmc::WriteCmd(uint16_t cmd, std::initializer_list<const uint16_t> params)
@ -77,6 +80,62 @@ void Ili9341Fsmc::WriteCmd_(uint16_t cmd, uint16_t cnt, ...)
va_end(argp);
}
void Ili9341Fsmc::WritePixels(void *src, uint32_t count, bool increment, bool async)
{
WriteCmd(ILI9341_GRAM);
LL_DMA_SetM2MDstAddress(GetDma(), GetStream(), (uint32_t)m_ram);
LL_DMA_SetMemoryIncMode(GetDma(), GetStream(), LL_DMA_MEMORY_NOINCREMENT);
LL_DMA_SetM2MSrcAddress(GetDma(), GetStream(), (uint32_t) src);
LL_DMA_SetPeriphIncMode(GetDma(), GetStream(), increment ? LL_DMA_PERIPH_NOINCREMENT : LL_DMA_PERIPH_NOINCREMENT);
SetupDmaSize(count);
m_dmaEngineBusy = true;
LL_DMA_EnableStream(GetDma(), GetStream());
if(!async)
WaitDmaIdle();
}
void Ili9341Fsmc::ReadGRam(PixelPair *dst, uint32_t count, bool async)
{
WriteCmd(ILI9341_MEMORY_READ);
*m_ram;
LL_DMA_SetM2MSrcAddress(GetDma(), GetStream(), reinterpret_cast<uint32_t>(m_ram));
LL_DMA_SetPeriphIncMode(GetDma(), GetStream(), LL_DMA_PERIPH_NOINCREMENT);
LL_DMA_SetM2MDstAddress(GetDma(), GetStream(), reinterpret_cast<uint32_t>(dst));
LL_DMA_SetMemoryIncMode(GetDma(), GetStream(), LL_DMA_MEMORY_INCREMENT);
SetupDmaSize(count);
m_dmaEngineBusy = true;
LL_DMA_EnableStream(GetDma(), GetStream());
if(!async)
WaitDmaIdle();
}
void Ili9341Fsmc::ReadPixels(uint16_t *dst, uint32_t count)
{
uint16_t *barrier = dst + count;
union {
PixelPair pp;
uint16_t u16[3];
} rawData;
WriteCmd(ILI9341_MEMORY_READ);
*m_ram;
do {
for(uint8_t n = 0; n < 3; ++n)
rawData.u16[n] = *m_ram;
*dst++ = RGB2U16(rawData.pp.r0, rawData.pp.g0, rawData.pp.b0);
if(dst != barrier)
*dst++ = RGB2U16(rawData.pp.r1, rawData.pp.g1, rawData.pp.b1);
} while(dst != barrier);
}
void Ili9341Fsmc::SetScrollOffset()
{
uint16_t offsetData[2] = { SPLIT(m_scrollOffset) };
WriteCmd(ILI9341_VERTICAL_SCROLLING_START_ADDRESS);
*m_ram = offsetData[0];
*m_ram = offsetData[1];
}
void Ili9341Fsmc::SetRect(uint16_t x, uint16_t y, uint16_t width, uint16_t height)
{
if(x > m_width || y > m_height || !width || !height )
@ -92,8 +151,8 @@ void Ili9341Fsmc::SetRect(uint16_t x, uint16_t y, uint16_t width, uint16_t heigh
uint16_t right = x + m_rectWidth - 1;
uint16_t bottom = y + m_rectHeight - 1;
WriteCmd(ILI9341_COLUMN_ADDR, {(uint16_t)(x >> 8), (uint16_t)(x & 0xff), (uint16_t)(right >> 8), (uint16_t)(right & 0xff)});
WriteCmd(ILI9341_PAGE_ADDR, {(uint16_t)(y >> 8), (uint16_t)(y & 0xff), (uint16_t)(bottom >> 8), (uint16_t)(bottom & 0xff)});
WriteCmd(ILI9341_COLUMN_ADDR, { SPLIT(x), SPLIT(right) });
WriteCmd(ILI9341_PAGE_ADDR, { SPLIT(y), SPLIT(bottom) });
}
void Ili9341Fsmc::FillRect(uint16_t color, bool async)
@ -101,16 +160,7 @@ void Ili9341Fsmc::FillRect(uint16_t color, bool async)
uint32_t count = m_rectWidth * m_rectHeight;
WaitDmaIdle();
m_dmaColor = color;
WriteCmd(ILI9341_GRAM);
LL_DMA_SetM2MDstAddress(GetDma(), GetStream(), (uint32_t)m_ram);
LL_DMA_SetM2MSrcAddress(GetDma(), GetStream(), (uint32_t) &m_dmaColor);
LL_DMA_SetMemoryIncMode(GetDma(), GetStream(), LL_DMA_MEMORY_NOINCREMENT);
LL_DMA_SetPeriphIncMode(GetDma(), GetStream(), LL_DMA_PERIPH_NOINCREMENT);
SetupDmaSize(count);
m_dmaEngineBusy = true;
LL_DMA_EnableStream(GetDma(), GetStream());
if(!async)
WaitDmaIdle();
WritePixels(&m_dmaColor, count, false, async);
}
void Ili9341Fsmc::FillRect(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color, bool async)
@ -132,8 +182,8 @@ void Ili9341Fsmc::SetupDmaSize(uint32_t size)
void Ili9341Fsmc::HandleDmaIrq()
{
if(*GetIsReg() & GetTcMask()) { //LL_DMA_IsActiveFlag_TC4(DMA2)) {
*GetIfcReg() = GetTcMask(); //LL_DMA_ClearFlag_TC4(DMA2);
if(*GetIsReg() & GetTcMask()) { //LL_DMA_IsActiveFlag_TCx(DMAy))
*GetIfcReg() = GetTcMask(); //LL_DMA_ClearFlag_TCx(DMAy)
LL_DMA_DisableStream(GetDma(), GetStream());
if(!m_dmaRemainingPixels)
m_dmaEngineBusy = false;
@ -141,8 +191,8 @@ void Ili9341Fsmc::HandleDmaIrq()
SetupDmaSize(m_dmaRemainingPixels);
LL_DMA_EnableStream(GetDma(), GetStream());
}
} else if(*GetIsReg() & GetTeMask())
*GetIfcReg() = GetTeMask();
} else if(*GetIsReg() & GetTeMask()) //LL_DMA_IsActiveFlag_TEx(DMAy))
*GetIfcReg() = GetTeMask(); // //LL_DMA_ClearFlag_TEx(DMAy)
}
void Ili9341Fsmc::SetCursor(uint16_t x, uint16_t y, uint16_t fgColor, uint16_t bgColor)
@ -153,33 +203,29 @@ void Ili9341Fsmc::SetCursor(uint16_t x, uint16_t y, uint16_t fgColor, uint16_t b
m_bgColor = bgColor;
}
void Ili9341Fsmc::SetCursor(uint16_t x, uint16_t y)
{
m_xPos = x;
m_yPos = y;
}
void Ili9341Fsmc::PrintChar(char c, bool transparent)
{
// fonts are rotated, one byte representing one column
if(m_xPos >= m_width - CHRWIDTH || m_yPos >= m_height - CHRHEIGHT || c < ' ' || c >= '~')
if(m_xPos > m_width - CHRWIDTH || m_yPos > m_height - CHRHEIGHT || c < ' ' || c >= '~')
return;
uint8_t const *chrPtr = m_font[c - 32];
SetRect(m_xPos, m_yPos, CHRWIDTH, CHRHEIGHT);
if(transparent) {
WaitDmaIdle();
WriteCmd(ILI9341_MEMORY_READ);
*m_ram;
LL_DMA_SetM2MSrcAddress(GetDma(), GetStream(), reinterpret_cast<uint32_t>(m_ram));
LL_DMA_SetPeriphIncMode(GetDma(), GetStream(), LL_DMA_PERIPH_NOINCREMENT);
LL_DMA_SetM2MDstAddress(GetDma(), GetStream(), reinterpret_cast<uint32_t>(m_fontBuffer));
LL_DMA_SetMemoryIncMode(GetDma(), GetStream(), LL_DMA_MEMORY_INCREMENT);
SetupDmaSize(sizeof(m_fontBuffer)/sizeof(m_fontBuffer[0][0]));
m_dmaEngineBusy = true;
LL_DMA_EnableStream(GetDma(), GetStream());
}
SetRect(m_xPos, AdjustY(m_yPos), CHRWIDTH, CHRHEIGHT);
WaitDmaIdle();
if(transparent)
ReadPixels(m_fontBkgBuffer[0], CHRHEIGHT * CHRWIDTH);
WriteCmd(ILI9341_GRAM);
for(uint8_t y = 0; y < CHRHEIGHT; ++y ) {
uint8_t mask = 1 << y;
for(uint8_t x = 0; x < CHRWIDTH; ++x) {
*m_ram = (chrPtr[x] & mask) ? m_fgColor : (transparent ? m_fontBuffer[y][x] : m_bgColor);
*m_ram = (chrPtr[x] & mask) ? m_fgColor : (transparent ? m_fontBkgBuffer[y][x] : m_bgColor);
}
}
m_xPos += CHRWIDTH;
@ -198,8 +244,18 @@ void Ili9341Fsmc::Print(char const *str, uint8_t len)
while(len--) {
if(*str == '\r')
m_xPos = 0;
else if(*str == '\n')
else if(*str == '\n') {
m_yPos += CHRHEIGHT;
if(m_yPos >= m_height) {
m_yPos -= CHRHEIGHT;
m_scrollOffset += CHRHEIGHT;
if(m_scrollOffset >= m_height)
m_scrollOffset -= m_height;
WaitDmaIdle();
SetScrollOffset();
FillRect(0, AdjustY(m_yPos), m_width, CHRHEIGHT, m_bgColor);
}
}
else
PrintChar(*str, false);
++str;
@ -208,27 +264,25 @@ void Ili9341Fsmc::Print(char const *str, uint8_t len)
void Ili9341Fsmc::Test()
{
static uint16_t linebuf[320];
uint16_t x;
// static PixelPair linebuf[320/2];
// uint16_t x;
WriteCmd(ILI9341_READ_ID4);
for( x= 0; x < 4; ++x)
linebuf[x] = *m_ram;
// uint16_t *bufptr = linebuf;
// WriteCmd(ILI9341_MEMORY_READ);
// for(x = 0; x < m_width; ++x)
// *bufptr++ = *m_ram;
// WriteCmd(ILI9341_READ_DISPLAY_PIXEL_FORMAT);
// for( x= 0; x < 2; ++x)
// reinterpret_cast<uint16_t*>(linebuf)[x] = *m_ram;
WriteCmd(ILI9341_GRAM);
uint16_t fillers[4] = { 0xf800, 0x7e0, 0x1f, 0xffff };
for(uint32_t y = 0; y < m_height; ++y) {
for(x = 0; x < m_width / 2; ++x)
*m_ram = fillers[ (x&0x18) >> 3 ];
for( ; x < m_width; ++x)
*m_ram = 0;
}
// WriteCmd(ILI9341_GRAM);
// uint16_t fillers[4] = { 0xf800, 0x7e0, 0x1f, 0xffff };
// for(uint32_t y = 0; y < m_height; ++y) {
// for(x = 0; x < m_width / 2; ++x)
// *m_ram = fillers[ (x&0x18) >> 3 ];
// for( ; x < m_width; ++x)
// *m_ram = 0;
// }
//
// SetRect(0, 0, 11, 2);
// ReadGRam(linebuf, 11 * 3);
}

View file

@ -8,6 +8,10 @@
class Ili9341Fsmc : public Singleton<Ili9341Fsmc>, private DmaHelper
{
public:
struct PixelPair {
uint8_t g0, r0, r1, b0, b1, g1;
};
Ili9341Fsmc(volatile uint16_t *reg, volatile uint16_t *ram,
DMA_TypeDef *dma, uint32_t dmaStream,
bool horizontal = true);
@ -16,7 +20,10 @@ public:
void FillRect(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color, bool async = true);
uint16_t Width() { return m_width; }
uint16_t Height() { return m_height; }
uint8_t ChrHeight() { return CHRHEIGHT; }
uint8_t ChrWidth() { return CHRWIDTH; }
void SetCursor(uint16_t x, uint16_t y, uint16_t fgColor, uint16_t bgColor);
void SetCursor(uint16_t x, uint16_t y);
void PrintChar(char c, uint16_t x, uint16_t y, uint16_t fgColor, uint16_t bgColor);
void PrintChar(char c, bool transparent = false);
void Print(char const *str, uint8_t len = 0);
@ -33,23 +40,32 @@ private:
void WriteCmd(uint16_t cmd, std::initializer_list<const uint16_t> params);
void WriteCmd_(uint16_t cmd, uint16_t cnt, ...);
void SetRect(uint16_t x, uint16_t y, uint16_t width, uint16_t height);
void WritePixels(void *src, uint32_t count, bool increment, bool async = true);
void ReadGRam(PixelPair *dst, uint32_t count, bool async = true);
void ReadPixels(uint16_t *dst, uint32_t count);
void SetScrollOffset();
volatile uint16_t * const m_reg;
volatile uint16_t * const m_ram;
void HandleDmaIrq();
void SetupDmaSize(uint32_t size);
uint16_t AdjustY(uint16_t y) { return (m_scrollOffset + y) % m_height; }
volatile bool m_dmaEngineBusy = false;
uint32_t m_dmaRemainingPixels = 0;
uint16_t m_dmaColor = 0;
// initialized in the constructor
uint16_t const m_width;
uint16_t const m_height;
uint16_t m_rectX;
uint16_t m_rectY;
uint16_t m_rectWidth;
uint16_t m_rectHeight;
uint16_t m_rectX;
uint16_t m_rectY;
uint16_t m_rectWidth;
uint16_t m_rectHeight;
uint16_t m_scrollOffset = 0;
uint16_t m_xPos = 0;
uint16_t m_yPos = 0;
@ -141,7 +157,8 @@ private:
static const uint8_t CHRWIDTH = 6;
static const uint8_t CHRCOUNT = 96;
static const uint8_t m_font[CHRCOUNT][CHRWIDTH];
uint16_t m_fontBuffer[CHRHEIGHT][CHRWIDTH];
uint16_t m_fontBkgBuffer[CHRHEIGHT][CHRWIDTH];
public:
enum Colors {