/**
* \brief ILI9488 Read Ext registers for SPI/SMC mode.
* \param command Command to be sent
* \param size Size of buffer
* \returns Ext register value.
*/
uint32_t ILI9488ReadExtReg(uint16_t cmd,uint32_t size)
{
uint32_t value=0;
#if !defined(BOARD_LCD_SMC)
uint32_t shift_cnt = size-1;
uint16_t nSpiCnt = 0x81;
uint16_t def_val = 0;
if (size > 4) return ILI9488_ERROR_DMA_SIZE;
while(size > 0) {
ILI9488_WriteReg(ILI9488_CMD_SPI_READ_SETTINGS,&nSpiCnt,1);
ILI9488_SendCmd(cmd);
ILI9488DmaRxTransfer( paramBuf,2);
while(!ili9488DmaCtl.rxDone);
ili9488DmaCtl.rxDone = 0;
ILI9488_WriteReg(ILI9488_CMD_SPI_READ_SETTINGS,&def_val,1);
value |= (paramBuf[1]&0xFF)<<(shift_cnt << 3);
nSpiCnt++;
shift_cnt--;
size--;
}
#else
value = ILI9488ReadReg(cmd,size);
#endif
return value;
}
/**
* \brief Draw a pixel on LCD with given color, DMA not used
* \param x X-coordinate of pixel.
* \param y Y-coordinate of pixel.
* \param color Pixel color.
*/
void ILI9488_SetPixelColor(uint32_t x, uint32_t y, uint32_t color)
{
uint32_t i;
/* Set Horizontal Address Start Position */
ILI9488_SendCmd(ILI9488_CMD_COLUMN_ADDRESS_SET);
PIO_Set(&lcd_spi_cds_pin);
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_8b_to_16b(x));
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_0b_to_8b(x));
x++;
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_8b_to_16b(x));
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_0b_to_8b(x));
for (i = 0; i < 0x18; i++);
ILI9488_SendCmd(ILI9488_CMD_NOP);
/* Set Horizontal Address End Position */
ILI9488_SendCmd(ILI9488_CMD_PAGE_ADDRESS_SET);
PIO_Set(&lcd_spi_cds_pin);
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_8b_to_16b(y));
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_0b_to_8b(y));
y++;
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_8b_to_16b(y));
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_0b_to_8b(y));
for (i = 0; i < 0x18; i++);
ILI9488_SendCmd(ILI9488_CMD_NOP);
/* Set Color */
ILI9488_SendCmd(ILI9488_CMD_MEMORY_WRITE);
PIO_Set(&lcd_spi_cds_pin);
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_16b_to_24b(color));
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_8b_to_16b(color));
SPI_Write(ILI9488_SPI, SMC_EBI_LCD_CS, get_0b_to_8b(color));
for (i = 0; i < 0x18; i++);
}
/**
* \brief ILI9488 Read registers for SPI/SMC mode.
* \param command Command to be sent
* \param size Size of parameters
* \returns register value.
*/
uint32_t ILI9488ReadReg(uint16_t cmd,uint32_t size)
{
uint32_t i;
uint32_t value = 0;
uint32_t *ptr;
uint32_t shift_cnt = size-1;
if (size > 4) return ILI9488_ERROR_DMA_SIZE;
ILI9488_SendCmd(cmd);
ILI9488DmaRxTransfer(paramBuf, size+1);
while(!ili9488DmaCtl.rxDone);
ili9488DmaCtl.rxDone = 0;
ptr = ¶mBuf[1];
for(i = 1; i < size+1; i++) {
value |= (*ptr&0xFF)<<(shift_cnt << 3);
ptr++;
shift_cnt--;
}
return value;
}
/**
* \brief ILI9488 Write register for SPI/SMC mode.
* \param command Command to be sent
* \param pTxBuffer Point to tx buffer contains parameters
* \param bufSize Size of buffer
* \returns 0 if the xDMA transfer successfully; otherwise returns ILI9488_DMA_ERROR_XXX.
*/
void ILI9488_WriteReg(uint16_t command, uint16_t* pTxBuffer, uint32_t bufSize)
{
ILI9488_SendCmd(command);
if(bufSize == 0) return;
ILI9488DmaTxTransfer(pTxBuffer,bufSize);
}
