John Durrell
/
SPI_TFT
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Revision 8:65a4de035c3c, committed 2013-02-03
- Comitter:
- dreschpe
- Date:
- Sun Feb 03 00:28:19 2013 +0000
- Parent:
- 7:e753bb62eeb9
- Child:
- 9:a63fd1ad41b0
- Commit message:
- Add NO_DMA define to switch off DMA use (LPC11U24)
Changed in this revision
| SPI_TFT.cpp | Show annotated file Show diff for this revision Revisions of this file |
| SPI_TFT.h | Show annotated file Show diff for this revision Revisions of this file |
--- a/SPI_TFT.cpp Fri Oct 12 10:03:42 2012 +0000
+++ b/SPI_TFT.cpp Sun Feb 03 00:28:19 2013 +0000
@@ -1,1063 +1,1166 @@
-/* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
- * Copyright (c) 2011 Peter Drescher - DC2PD
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-
-// fix bmp padding for Bitmap function
-// speed up pixel
-// 30.12.11 fix cls
-// 11.03.12 use DMA to speed up
-// 15.03.12 use SSEL for TFT CS to enable DMA Register writes
-// 06.04.12 fix SSEL CS problem
-// 06.04.12 use direct access to the spi register to speed up the library.
-// 11.09.12 switch back to using io pin as cs to avoid problems with SSEL CS.
-// 21.09.12 fix Bug in BMP_16
-// 11.10.12 patch from Hans Bergles to get SPI1 working again
-
-#include "SPI_TFT.h"
-#include "mbed.h"
-
-
-#define BPP 16 // Bits per pixel
-
-
-//extern Serial pc;
-//extern DigitalOut xx; // debug !!
-
-SPI_TFT::SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, const char *name)
- : _spi(mosi, miso, sclk), _cs(cs), _reset(reset),GraphicsDisplay(name)
-{
- orientation = 0;
- char_x = 0;
- if (mosi == p11 || mosi == P0_18) spi_port = 0; // we must know the used SPI port to setup the DMA
- else spi_port = 1;
- tft_reset();
-}
-
-int SPI_TFT::width()
-{
- if (orientation == 0 || orientation == 2) return 240;
- else return 320;
-}
-
-
-int SPI_TFT::height()
-{
- if (orientation == 0 || orientation == 2) return 320;
- else return 240;
-}
-
-
-void SPI_TFT::set_orientation(unsigned int o)
-{
- orientation = o;
- switch (orientation) {
- case 0:
- wr_reg(0x16, 0x08);
- break;
- case 1:
- wr_reg(0x16, 0x68);
- break;
- case 2:
- wr_reg(0x16, 0xC8);
- break;
- case 3:
- wr_reg(0x16, 0xA8);
- break;
- }
- WindowMax();
-}
-
-
-// write command to tft register
-
-void SPI_TFT::wr_cmd(unsigned char cmd)
-{
- unsigned short spi_d;
- spi_d = 0x7000 | cmd ;
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_SSP0->DR = spi_d;
- // we have to wait for SPI IDLE to set CS back to high
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
- } else {
- LPC_SSP1->DR = spi_d;
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- }
- _cs = 1;
-}
-
-
-
-void SPI_TFT::wr_dat(unsigned char dat)
-{
- unsigned short spi_d;
- spi_d = 0x7200 | dat;
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_SSP0->DR = spi_d;
- // we have to wait for SPI IDLE to set CS back to high
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
- } else {
- LPC_SSP1->DR = spi_d;
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- }
- _cs = 1;
-}
-
-
-
-// the HX8347-D controller do not use the MISO (SDO) Signal.
-// This is a bug - ?
-// A read will return 0 at the moment
-
-unsigned short SPI_TFT::rd_dat (void)
-{
- unsigned short val = 0;
-
- //val = _spi.write(0x73ff); /* Dummy read 1 */
- //val = _spi.write(0x0000); /* Read D8..D15 */
- return (val);
-}
-
-void SPI_TFT::wr_reg (unsigned char reg, unsigned char val)
-{
- wr_cmd(reg);
- wr_dat(val);
-}
-
-unsigned short SPI_TFT::rd_reg (unsigned char reg)
-{
- wr_cmd(reg);
- return(rd_dat());
-}
-
-void SPI_TFT::tft_reset()
-{
- //static unsigned short driverCode;
- _spi.format(16,3); // 16 bit spi mode 3
- _spi.frequency(48000000); // 48 Mhz SPI clock
- _cs = 1; // cs high
- _reset = 0; // display reset
-
- wait_us(50);
- _reset = 1; // end reset
- wait_ms(5);
-
- /* Start Initial Sequence ----------------------------------------------------*/
- wr_reg(0xEA, 0x00); /* Reset Power Control 1 */
- wr_reg(0xEB, 0x20); /* Power Control 2 */
- wr_reg(0xEC, 0x0C); /* Power Control 3 */
- wr_reg(0xED, 0xC4); /* Power Control 4 */
- wr_reg(0xE8, 0x40); /* Source OPON_N */
- wr_reg(0xE9, 0x38); /* Source OPON_I */
- wr_reg(0xF1, 0x01); /* */
- wr_reg(0xF2, 0x10); /* */
- wr_reg(0x27, 0xA3); /* Display Control 2 */
-
- /* Power On sequence ---------------------------------------------------------*/
- wr_reg(0x1B, 0x1B); /* Power Control 2 */
- wr_reg(0x1A, 0x01); /* Power Control 1 */
- wr_reg(0x24, 0x2F); /* Vcom Control 2 */
- wr_reg(0x25, 0x57); /* Vcom Control 3 */
- wr_reg(0x23, 0x8D); /* Vcom Control 1 */
-
- /* Gamma settings -----------------------------------------------------------*/
- wr_reg(0x40,0x00); //
- wr_reg(0x41,0x00); //
- wr_reg(0x42,0x01); //
- wr_reg(0x43,0x13); //
- wr_reg(0x44,0x10); //
- wr_reg(0x45,0x26); //
- wr_reg(0x46,0x08); //
- wr_reg(0x47,0x51); //
- wr_reg(0x48,0x02); //
- wr_reg(0x49,0x12); //
- wr_reg(0x4A,0x18); //
- wr_reg(0x4B,0x19); //
- wr_reg(0x4C,0x14); //
- wr_reg(0x50,0x19); //
- wr_reg(0x51,0x2F); //
- wr_reg(0x52,0x2C); //
- wr_reg(0x53,0x3E); //
- wr_reg(0x54,0x3F); //
- wr_reg(0x55,0x3F); //
- wr_reg(0x56,0x2E); //
- wr_reg(0x57,0x77); //
- wr_reg(0x58,0x0B); //
- wr_reg(0x59,0x06); //
- wr_reg(0x5A,0x07); //
- wr_reg(0x5B,0x0D); //
- wr_reg(0x5C,0x1D); //
- wr_reg(0x5D,0xCC); //
-
- /* Power + Osc ---------------------------------------------------------------*/
- wr_reg(0x18, 0x0036); /* OSC Control 1 */
- wr_reg(0x19, 0x0001); /* OSC Control 2 */
- wr_reg(0x01, 0x0000); /* Display Mode Control */
- wr_reg(0x1F, 0x0088); /* Power Control 6 */
- wait_ms(5); /* Delay 5 ms */
- wr_reg(0x1F, 0x0080); /* Power Control 6 */
- wait_ms(5); /* Delay 5 ms */
- wr_reg(0x1F, 0x0090); /* Power Control 6 */
- wait_ms(5); /* Delay 5 ms */
- wr_reg(0x1F, 0x00D0); /* Power Control 6 */
- wait_ms(5); /* Delay 5 ms */
-
- wr_reg(0x17, 0x0005); /* Colmod 16Bit/Pixel */
-
- wr_reg(0x36, 0x0000); /* Panel Characteristic */
- wr_reg(0x28, 0x0038); /* Display Control 3 */
- wait_ms(40);
- wr_reg(0x28, 0x003C); /* Display Control 3 */
- switch (orientation) {
- case 0:
- wr_reg(0x16, 0x0008);
- break;
- case 1:
- wr_reg(0x16, 0x0068);
- break;
- case 2:
- wr_reg(0x16, 0x00C8);
- break;
- case 3:
- wr_reg(0x16, 0x00A8);
- break;
- }
-
- // setup DMA channel 0
- // Power up the GPDMA.
- LPC_SC->PCONP |= (1UL << 29);
- LPC_GPDMA->DMACConfig = 1; // enable DMA controller
- // Reset the Interrupt status
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCLLI = 0;
-
- WindowMax ();
-}
-
-
-void SPI_TFT::pixel(int x, int y, int color)
-{
- unsigned char u,l;
- wr_reg(0x03, (x >> 0));
- wr_reg(0x02, (x >> 8));
- wr_reg(0x07, (y >> 0));
- wr_reg(0x06, (y >> 8));
- wr_cmd(0x22);
- u = color >> 8;
- l = color & 0xff;
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->DR = u; // high byte
- LPC_SSP0->DR = l; // low byte
- LPC_SSP0->CR0 |= 0x08UL; // set back to 16 bit
- // we have to wait for SPI IDLE to set CS back to high
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
- } else {
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->DR = u;
- LPC_SSP1->DR = l;
- LPC_SSP1->CR0 |= 0x08UL; // set back to 16 bit
- // we have to wait for SPI IDLE to set CS back to high
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- }
- _cs = 1;
-}
-
-
-void SPI_TFT::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
-{
- wr_reg(0x03, x );
- wr_reg(0x02, (x >> 8));
- wr_reg(0x05, x+w-1 );
- wr_reg(0x04, (x+w-1 >> 8));
- wr_reg(0x07, y );
- wr_reg(0x06, ( y >> 8));
- wr_reg(0x09, ( y+h-1 ));
- wr_reg(0x08, ( y+h-1 >> 8));
-}
-
-
-void SPI_TFT::WindowMax (void)
-{
- window (0, 0, width(), height());
-}
-
-
-void SPI_TFT::cls (void)
-{
- //unsigned int i
-
- int pixel = ( width() * height());
- int dma_count;
- int color = _background;
- WindowMax();
- wr_cmd(0x22);
-
- // The SSEL signal is held low until the spi FIFO is emty.
- // We have to lower the SPI clock for the 8 bit start to get the spi running
- // until the next data word
-
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
-
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start byte
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- }
-
- // start DMA
- do {
- if (pixel > 4095) {
- dma_count = 4095;
- pixel = pixel - 4095;
- } else {
- dma_count = pixel;
- pixel = 0;
- }
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1; // DMA request
-
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
- } while (pixel > 0);
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((0x0010 & LPC_SSP0->SR) == 0x10); // SPI FIFO not empty
- /* disable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x0;
- } else {
- do {
- } while ((0x0010 & LPC_SSP1->SR) == 0x10); // SPI FIFO not empty
- /* disable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x0;
- }
- _cs = 1;
-}
-
-
-void SPI_TFT::circle(int x0, int y0, int r, int color)
-{
-
- int draw_x0, draw_y0;
- int draw_x1, draw_y1;
- int draw_x2, draw_y2;
- int draw_x3, draw_y3;
- int draw_x4, draw_y4;
- int draw_x5, draw_y5;
- int draw_x6, draw_y6;
- int draw_x7, draw_y7;
- int xx, yy;
- int di;
- //WindowMax();
- if (r == 0) { /* no radius */
- return;
- }
-
- draw_x0 = draw_x1 = x0;
- draw_y0 = draw_y1 = y0 + r;
- if (draw_y0 < height()) {
- pixel(draw_x0, draw_y0, color); /* 90 degree */
- }
-
- draw_x2 = draw_x3 = x0;
- draw_y2 = draw_y3 = y0 - r;
- if (draw_y2 >= 0) {
- pixel(draw_x2, draw_y2, color); /* 270 degree */
- }
-
- draw_x4 = draw_x6 = x0 + r;
- draw_y4 = draw_y6 = y0;
- if (draw_x4 < width()) {
- pixel(draw_x4, draw_y4, color); /* 0 degree */
- }
-
- draw_x5 = draw_x7 = x0 - r;
- draw_y5 = draw_y7 = y0;
- if (draw_x5>=0) {
- pixel(draw_x5, draw_y5, color); /* 180 degree */
- }
-
- if (r == 1) {
- return;
- }
-
- di = 3 - 2*r;
- xx = 0;
- yy = r;
- while (xx < yy) {
-
- if (di < 0) {
- di += 4*xx + 6;
- } else {
- di += 4*(xx - yy) + 10;
- yy--;
- draw_y0--;
- draw_y1--;
- draw_y2++;
- draw_y3++;
- draw_x4--;
- draw_x5++;
- draw_x6--;
- draw_x7++;
- }
- xx++;
- draw_x0++;
- draw_x1--;
- draw_x2++;
- draw_x3--;
- draw_y4++;
- draw_y5++;
- draw_y6--;
- draw_y7--;
-
- if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
- pixel(draw_x0, draw_y0, color);
- }
-
- if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
- pixel(draw_x1, draw_y1, color);
- }
-
- if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
- pixel(draw_x2, draw_y2, color);
- }
-
- if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
- pixel(draw_x3, draw_y3, color);
- }
-
- if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
- pixel(draw_x4, draw_y4, color);
- }
-
- if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
- pixel(draw_x5, draw_y5, color);
- }
- if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
- pixel(draw_x6, draw_y6, color);
- }
- if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
- pixel(draw_x7, draw_y7, color);
- }
- }
- return;
-}
-
-void SPI_TFT::fillcircle(int x, int y, int r, int color)
-{
- int i;
- for (i = 0; i <= r; i++)
- circle(x,y,i,color);
-}
-
-
-
-void SPI_TFT::hline(int x0, int x1, int y, int color)
-{
- int w;
- w = x1 - x0 + 1;
- window(x0,y,w,1);
- wr_cmd(0x22);
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- }
-
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
- LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1; // start DMA
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
- } else {
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
- }
- _cs = 1;
- WindowMax();
- return;
-}
-
-void SPI_TFT::vline(int x, int y0, int y1, int color)
-{
- int h;
- h = y1 - y0 + 1;
- window(x,y0,1,h);
- wr_cmd(0x22);
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- }
-
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
- LPC_GPDMACH0->DMACCControl = h | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
- } else {
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
- }
- _cs = 1;
- WindowMax();
- return;
-}
-
-
-
-void SPI_TFT::line(int x0, int y0, int x1, int y1, int color)
-{
- //WindowMax();
- int dx = 0, dy = 0;
- int dx_sym = 0, dy_sym = 0;
- int dx_x2 = 0, dy_x2 = 0;
- int di = 0;
-
- dx = x1-x0;
- dy = y1-y0;
-
- if (dx == 0) { /* vertical line */
- if (y1 > y0) vline(x0,y0,y1,color);
- else vline(x0,y1,y0,color);
- return;
- }
-
- if (dx > 0) {
- dx_sym = 1;
- } else {
- dx_sym = -1;
- }
- if (dy == 0) { /* horizontal line */
- if (x1 > x0) hline(x0,x1,y0,color);
- else hline(x1,x0,y0,color);
- return;
- }
-
- if (dy > 0) {
- dy_sym = 1;
- } else {
- dy_sym = -1;
- }
-
- dx = dx_sym*dx;
- dy = dy_sym*dy;
-
- dx_x2 = dx*2;
- dy_x2 = dy*2;
-
- if (dx >= dy) {
- di = dy_x2 - dx;
- while (x0 != x1) {
-
- pixel(x0, y0, color);
- x0 += dx_sym;
- if (di<0) {
- di += dy_x2;
- } else {
- di += dy_x2 - dx_x2;
- y0 += dy_sym;
- }
- }
- pixel(x0, y0, color);
- } else {
- di = dx_x2 - dy;
- while (y0 != y1) {
- pixel(x0, y0, color);
- y0 += dy_sym;
- if (di < 0) {
- di += dx_x2;
- } else {
- di += dx_x2 - dy_x2;
- x0 += dx_sym;
- }
- }
- pixel(x0, y0, color);
- }
- return;
-}
-
-
-void SPI_TFT::rect(int x0, int y0, int x1, int y1, int color)
-{
-
- if (x1 > x0) hline(x0,x1,y0,color);
- else hline(x1,x0,y0,color);
-
- if (y1 > y0) vline(x0,y0,y1,color);
- else vline(x0,y1,y0,color);
-
- if (x1 > x0) hline(x0,x1,y1,color);
- else hline(x1,x0,y1,color);
-
- if (y1 > y0) vline(x1,y0,y1,color);
- else vline(x1,y1,y0,color);
-
- return;
-}
-
-
-
-void SPI_TFT::fillrect(int x0, int y0, int x1, int y1, int color)
-{
-
- int h = y1 - y0 + 1;
- int w = x1 - x0 + 1;
- int pixel = h * w;
- int dma_count;
- window(x0,y0,w,h);
- wr_cmd(0x22);
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- }
-
- do {
- if (pixel > 4095) {
- dma_count = 4095;
- pixel = pixel - 4095;
- } else {
- dma_count = pixel;
- pixel = 0;
- }
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
- LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
- } while (pixel > 0);
-
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
- } else {
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
- }
- _cs = 1;
- WindowMax();
- return;
-}
-
-
-void SPI_TFT::locate(int x, int y)
-{
- char_x = x;
- char_y = y;
-}
-
-
-
-int SPI_TFT::columns()
-{
- return width() / font[1];
-}
-
-
-
-int SPI_TFT::rows()
-{
- return height() / font[2];
-}
-
-
-
-int SPI_TFT::_putc(int value)
-{
- if (value == '\n') { // new line
- char_x = 0;
- char_y = char_y + font[2];
- if (char_y >= height() - font[2]) {
- char_y = 0;
- }
- } else {
- character(char_x, char_y, value);
- }
- return value;
-}
-
-
-
-
-void SPI_TFT::character(int x, int y, int c)
-{
- unsigned int hor,vert,offset,bpl,j,i,b,p;
- unsigned char* zeichen;
- unsigned char z,w;
- unsigned int pixel;
- unsigned int dma_count,dma_off;
- uint16_t *buffer;
-
- if ((c < 31) || (c > 127)) return; // test char range
-
- // read font parameter from start of array
- offset = font[0]; // bytes / char
- hor = font[1]; // get hor size of font
- vert = font[2]; // get vert size of font
- bpl = font[3]; // bytes per line
-
- if (char_x + hor > width()) {
- char_x = 0;
- char_y = char_y + vert;
- if (char_y >= height() - font[2]) {
- char_y = 0;
- }
- }
- window(char_x, char_y,hor,vert); // char box
- wr_cmd(0x22);
-
- pixel = hor * vert; // calculate buffer size
-
- buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the 16 bit
- if (buffer == NULL) {
- //led = 1;
- //pc.printf("Malloc error !\n\r");
- return; // error no memory
- }
-
- zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
- w = zeichen[0]; // width of actual char
- p = 0;
- // construct the char into the buffer
- for (j=0; j<vert; j++) { // vert line
- for (i=0; i<hor; i++) { // horz line
- z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
- b = 1 << (j & 0x07);
- if (( z & b ) == 0x00) {
- buffer[p] = _background;
- } else {
- buffer[p] = _foreground;
- }
- p++;
- }
- }
-
-
- // copy the buffer with DMA SPI to display
- dma_off = 0; // offset for DMA transfer
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- }
-
- // start DMA
- do {
- if (pixel > 4095) { // this is a giant font !
- dma_count = 4095;
- pixel = pixel - 4095;
- } else {
- dma_count = pixel;
- pixel = 0;
- }
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + dma_off);
- LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
- dma_off = dma_off + dma_count;
- } while (pixel > 0);
-
- free ((uint16_t *) buffer);
-
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
- /* disable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x0;
- } else {
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
- /* disable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x0;
- }
- _cs = 1;
- WindowMax();
- if ((w + 2) < hor) { // x offset to next char
- char_x += w + 2;
- } else char_x += hor;
-
-}
-
-
-void SPI_TFT::set_font(unsigned char* f)
-{
- font = f;
-}
-
-
-
-void SPI_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
-{
- unsigned int j;
- int padd;
- unsigned short *bitmap_ptr = (unsigned short *)bitmap;
- // the lines are padded to multiple of 4 bytes in a bitmap
- padd = -1;
- do {
- padd ++;
- } while (2*(w + padd)%4 != 0);
- window(x, y, w, h);
- wr_cmd(0x22);
- _cs = 0;
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
-
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data command
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
-
- }
-
- bitmap_ptr += ((h - 1)* (w + padd));
- for (j = 0; j < h; j++) { //Lines
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)bitmap_ptr;
- LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
- bitmap_ptr -= w;
- bitmap_ptr -= padd;
- }
-
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
- } else {
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
- }
- _cs = 1;
- WindowMax();
-}
-
-
-int SPI_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
-{
-
-#define OffsetPixelWidth 18
-#define OffsetPixelHeigh 22
-#define OffsetFileSize 34
-#define OffsetPixData 10
-#define OffsetBPP 28
-
- char filename[50];
- unsigned char BMP_Header[54];
- unsigned short BPP_t;
- unsigned int PixelWidth,PixelHeigh,start_data;
- unsigned int i,off;
- int padd,j;
- unsigned short *line;
-
- // get the filename
- LocalFileSystem local("local");
- sprintf(&filename[0],"/local/");
- i=7;
- while (*Name_BMP!='\0') {
- filename[i++]=*Name_BMP++;
- }
-
- fprintf(stderr, "filename : %s \n\r",filename);
-
- FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
- if (!Image) {
- return(0); // error file not found !
- }
-
- fread(&BMP_Header[0],1,54,Image); // get the BMP Header
-
- if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
- fclose(Image);
- return(-1); // error no BMP file
- }
-
- BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
- if (BPP_t != 0x0010) {
- fclose(Image);
- return(-2); // error no 16 bit BMP
- }
-
- PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
- PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
- if (PixelHeigh > height() + y || PixelWidth > width() + x) {
- fclose(Image);
- return(-3); // to big
- }
-
- start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
-
- line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
- if (line == NULL) {
- return(-4); // error no memory
- }
-
- // the bmp lines are padded to multiple of 4 bytes
- padd = -1;
- do {
- padd ++;
- } while ((PixelWidth * 2 + padd)%4 != 0);
-
-
-//fseek(Image, 70 ,SEEK_SET);
- window(x, y,PixelWidth ,PixelHeigh);
- wr_cmd(0x22);
- _cs = 0;
-
- if (spi_port == 0) { // TFT on SSP0
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
- LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP0->DR = 0x72; // start Data
- LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
- /* Enable SSP0 for DMA. */
- LPC_SSP0->DMACR = 0x2;
-
- } else {
- LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
- LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
- LPC_SSP1->DR = 0x72; // start Data
- LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
- /* Enable SSP1 for DMA. */
- LPC_SSP1->DMACR = 0x2;
- }
- for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
- off = j * (PixelWidth * 2 + padd) + start_data; // start of line
- fseek(Image, off ,SEEK_SET);
- fread(line,1,PixelWidth * 2,Image); // read a line - slow !
-
- LPC_GPDMA->DMACIntTCClear = 0x1;
- LPC_GPDMA->DMACIntErrClr = 0x1;
- LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)line;
- LPC_GPDMACH0->DMACCControl = PixelWidth | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
- LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
- LPC_GPDMA->DMACSoftSReq = 0x1;
- do {
- } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
- }
-
- if (spi_port == 0) { // TFT on SSP0
- do {
- } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
- } else {
- do {
- } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
- }
- _cs = 1;
- free (line);
- fclose(Image);
- WindowMax();
- return(1);
+/* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
+ * Copyright (c) 2011 Peter Drescher - DC2PD
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+// fix bmp padding for Bitmap function
+// speed up pixel
+// 30.12.11 fix cls
+// 11.03.12 use DMA to speed up
+// 15.03.12 use SSEL for TFT CS to enable DMA Register writes
+// 06.04.12 fix SSEL CS problem
+// 06.04.12 use direct access to the spi register to speed up the library.
+// 11.09.12 switch back to using io pin as cs to avoid problems with SSEL CS.
+// 21.09.12 fix Bug in BMP_16
+// 11.10.12 patch from Hans Bergles to get SPI1 working again
+// 03.02.13 add a switch to switch off DMA use for LPC11U24
+
+#include "SPI_TFT.h"
+#include "mbed.h"
+
+#define BPP 16 // Bits per pixel
+
+#if defined TARGET_LPC1768
+#define USE_DMA
+#endif
+
+#if defined NO_DMA
+#undef USE_DMA
+#endif
+
+
+//extern Serial pc;
+//extern DigitalOut xx; // debug !!
+
+SPI_TFT::SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, const char *name)
+ : _spi(mosi, miso, sclk), _cs(cs), _reset(reset),GraphicsDisplay(name)
+{
+ orientation = 0;
+ char_x = 0;
+ if (mosi == p11 || mosi == P0_18) spi_port = 0; // we must know the used SPI port to setup the DMA
+ else spi_port = 1;
+ tft_reset();
+}
+
+int SPI_TFT::width()
+{
+ if (orientation == 0 || orientation == 2) return 240;
+ else return 320;
+}
+
+
+int SPI_TFT::height()
+{
+ if (orientation == 0 || orientation == 2) return 320;
+ else return 240;
+}
+
+
+void SPI_TFT::set_orientation(unsigned int o)
+{
+ orientation = o;
+ switch (orientation) {
+ case 0:
+ wr_reg(0x16, 0x08);
+ break;
+ case 1:
+ wr_reg(0x16, 0x68);
+ break;
+ case 2:
+ wr_reg(0x16, 0xC8);
+ break;
+ case 3:
+ wr_reg(0x16, 0xA8);
+ break;
+ }
+ WindowMax();
+}
+
+
+// write command to tft register
+
+void SPI_TFT::wr_cmd(unsigned char cmd)
+{
+ unsigned short spi_d;
+ spi_d = 0x7000 | cmd ;
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ LPC_SSP0->DR = spi_d;
+ // we have to wait for SPI IDLE to set CS back to high
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
+ } else {
+ LPC_SSP1->DR = spi_d;
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
+ }
+ _cs = 1;
+}
+
+
+
+void SPI_TFT::wr_dat(unsigned char dat)
+{
+ unsigned short spi_d;
+ spi_d = 0x7200 | dat;
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ LPC_SSP0->DR = spi_d;
+ // we have to wait for SPI IDLE to set CS back to high
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
+ } else {
+ LPC_SSP1->DR = spi_d;
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
+ }
+ _cs = 1;
+}
+
+
+
+// the HX8347-D controller do not use the MISO (SDO) Signal.
+// This is a bug - ?
+// A read will return 0 at the moment
+
+unsigned short SPI_TFT::rd_dat (void)
+{
+ unsigned short val = 0;
+
+ //val = _spi.write(0x73ff); /* Dummy read 1 */
+ //val = _spi.write(0x0000); /* Read D8..D15 */
+ return (val);
+}
+
+void SPI_TFT::wr_reg (unsigned char reg, unsigned char val)
+{
+ wr_cmd(reg);
+ wr_dat(val);
+}
+
+unsigned short SPI_TFT::rd_reg (unsigned char reg)
+{
+ wr_cmd(reg);
+ return(rd_dat());
+}
+
+void SPI_TFT::tft_reset()
+{
+ //static unsigned short driverCode;
+ _spi.format(16,3); // 16 bit spi mode 3
+ _spi.frequency(48000000); // 48 Mhz SPI clock
+ _cs = 1; // cs high
+ _reset = 0; // display reset
+
+ wait_us(50);
+ _reset = 1; // end reset
+ wait_ms(5);
+
+ /* Start Initial Sequence ----------------------------------------------------*/
+ wr_reg(0xEA, 0x00); /* Reset Power Control 1 */
+ wr_reg(0xEB, 0x20); /* Power Control 2 */
+ wr_reg(0xEC, 0x0C); /* Power Control 3 */
+ wr_reg(0xED, 0xC4); /* Power Control 4 */
+ wr_reg(0xE8, 0x40); /* Source OPON_N */
+ wr_reg(0xE9, 0x38); /* Source OPON_I */
+ wr_reg(0xF1, 0x01); /* */
+ wr_reg(0xF2, 0x10); /* */
+ wr_reg(0x27, 0xA3); /* Display Control 2 */
+
+ /* Power On sequence ---------------------------------------------------------*/
+ wr_reg(0x1B, 0x1B); /* Power Control 2 */
+ wr_reg(0x1A, 0x01); /* Power Control 1 */
+ wr_reg(0x24, 0x2F); /* Vcom Control 2 */
+ wr_reg(0x25, 0x57); /* Vcom Control 3 */
+ wr_reg(0x23, 0x8D); /* Vcom Control 1 */
+
+ /* Gamma settings -----------------------------------------------------------*/
+ wr_reg(0x40,0x00); //
+ wr_reg(0x41,0x00); //
+ wr_reg(0x42,0x01); //
+ wr_reg(0x43,0x13); //
+ wr_reg(0x44,0x10); //
+ wr_reg(0x45,0x26); //
+ wr_reg(0x46,0x08); //
+ wr_reg(0x47,0x51); //
+ wr_reg(0x48,0x02); //
+ wr_reg(0x49,0x12); //
+ wr_reg(0x4A,0x18); //
+ wr_reg(0x4B,0x19); //
+ wr_reg(0x4C,0x14); //
+ wr_reg(0x50,0x19); //
+ wr_reg(0x51,0x2F); //
+ wr_reg(0x52,0x2C); //
+ wr_reg(0x53,0x3E); //
+ wr_reg(0x54,0x3F); //
+ wr_reg(0x55,0x3F); //
+ wr_reg(0x56,0x2E); //
+ wr_reg(0x57,0x77); //
+ wr_reg(0x58,0x0B); //
+ wr_reg(0x59,0x06); //
+ wr_reg(0x5A,0x07); //
+ wr_reg(0x5B,0x0D); //
+ wr_reg(0x5C,0x1D); //
+ wr_reg(0x5D,0xCC); //
+
+ /* Power + Osc ---------------------------------------------------------------*/
+ wr_reg(0x18, 0x0036); /* OSC Control 1 */
+ wr_reg(0x19, 0x0001); /* OSC Control 2 */
+ wr_reg(0x01, 0x0000); /* Display Mode Control */
+ wr_reg(0x1F, 0x0088); /* Power Control 6 */
+ wait_ms(5); /* Delay 5 ms */
+ wr_reg(0x1F, 0x0080); /* Power Control 6 */
+ wait_ms(5); /* Delay 5 ms */
+ wr_reg(0x1F, 0x0090); /* Power Control 6 */
+ wait_ms(5); /* Delay 5 ms */
+ wr_reg(0x1F, 0x00D0); /* Power Control 6 */
+ wait_ms(5); /* Delay 5 ms */
+
+ wr_reg(0x17, 0x0005); /* Colmod 16Bit/Pixel */
+
+ wr_reg(0x36, 0x0000); /* Panel Characteristic */
+ wr_reg(0x28, 0x0038); /* Display Control 3 */
+ wait_ms(40);
+ wr_reg(0x28, 0x003C); /* Display Control 3 */
+ switch (orientation) {
+ case 0:
+ wr_reg(0x16, 0x0008);
+ break;
+ case 1:
+ wr_reg(0x16, 0x0068);
+ break;
+ case 2:
+ wr_reg(0x16, 0x00C8);
+ break;
+ case 3:
+ wr_reg(0x16, 0x00A8);
+ break;
+ }
+#if defined USE_DMA
+ // setup DMA channel 0
+ // Power up the GPDMA.
+ LPC_SC->PCONP |= (1UL << 29);
+ LPC_GPDMA->DMACConfig = 1; // enable DMA controller
+ // Reset the Interrupt status
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCLLI = 0;
+#endif
+ WindowMax ();
+}
+
+
+void SPI_TFT::pixel(int x, int y, int color)
+{
+ unsigned char u,l;
+ wr_reg(0x03, (x >> 0));
+ wr_reg(0x02, (x >> 8));
+ wr_reg(0x07, (y >> 0));
+ wr_reg(0x06, (y >> 8));
+ wr_cmd(0x22);
+ u = color >> 8;
+ l = color & 0xff;
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->DR = u; // high byte
+ LPC_SSP0->DR = l; // low byte
+ LPC_SSP0->CR0 |= 0x08UL; // set back to 16 bit
+ // we have to wait for SPI IDLE to set CS back to high
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
+ } else {
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->DR = u;
+ LPC_SSP1->DR = l;
+ LPC_SSP1->CR0 |= 0x08UL; // set back to 16 bit
+ // we have to wait for SPI IDLE to set CS back to high
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
+ }
+ _cs = 1;
+}
+
+
+void SPI_TFT::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
+{
+ wr_reg(0x03, x );
+ wr_reg(0x02, (x >> 8));
+ wr_reg(0x05, x+w-1 );
+ wr_reg(0x04, (x+w-1 >> 8));
+ wr_reg(0x07, y );
+ wr_reg(0x06, ( y >> 8));
+ wr_reg(0x09, ( y+h-1 ));
+ wr_reg(0x08, ( y+h-1 >> 8));
+}
+
+
+void SPI_TFT::WindowMax (void)
+{
+ window (0, 0, width(), height());
+}
+
+
+
+void SPI_TFT::cls (void)
+{
+ int pixel = ( width() * height());
+#if defined USE_DMA
+ int dma_count;
+ int color = _background;
+#endif
+ WindowMax();
+ wr_cmd(0x22);
+
+ // The SSEL signal is held low until the spi FIFO is emty.
+ // We have to lower the SPI clock for the 8 bit start to get the spi running
+ // until the next data word
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
+#endif
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+#endif
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start byte
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ } else {
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+#endif
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+
+#if defined USE_DMA
+ // start DMA
+ do {
+ if (pixel > 4095) {
+ dma_count = 4095;
+ pixel = pixel - 4095;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1; // DMA request
+
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+
+ } while (pixel > 0);
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((0x0010 & LPC_SSP0->SR) == 0x10); // SPI FIFO not empty
+ /* disable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x0;
+ } else {
+ do {
+ } while ((0x0010 & LPC_SSP1->SR) == 0x10); // SPI FIFO not empty
+ /* disable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x0;
+ }
+#else // no DMA
+ unsigned int i;
+ for (i = 0; i < ( width() * height()); i++)
+ _spi.write(_background);
+#endif
+ _cs = 1;
+}
+
+
+void SPI_TFT::circle(int x0, int y0, int r, int color)
+{
+
+ int draw_x0, draw_y0;
+ int draw_x1, draw_y1;
+ int draw_x2, draw_y2;
+ int draw_x3, draw_y3;
+ int draw_x4, draw_y4;
+ int draw_x5, draw_y5;
+ int draw_x6, draw_y6;
+ int draw_x7, draw_y7;
+ int xx, yy;
+ int di;
+ //WindowMax();
+ if (r == 0) { /* no radius */
+ return;
+ }
+
+ draw_x0 = draw_x1 = x0;
+ draw_y0 = draw_y1 = y0 + r;
+ if (draw_y0 < height()) {
+ pixel(draw_x0, draw_y0, color); /* 90 degree */
+ }
+
+ draw_x2 = draw_x3 = x0;
+ draw_y2 = draw_y3 = y0 - r;
+ if (draw_y2 >= 0) {
+ pixel(draw_x2, draw_y2, color); /* 270 degree */
+ }
+
+ draw_x4 = draw_x6 = x0 + r;
+ draw_y4 = draw_y6 = y0;
+ if (draw_x4 < width()) {
+ pixel(draw_x4, draw_y4, color); /* 0 degree */
+ }
+
+ draw_x5 = draw_x7 = x0 - r;
+ draw_y5 = draw_y7 = y0;
+ if (draw_x5>=0) {
+ pixel(draw_x5, draw_y5, color); /* 180 degree */
+ }
+
+ if (r == 1) {
+ return;
+ }
+
+ di = 3 - 2*r;
+ xx = 0;
+ yy = r;
+ while (xx < yy) {
+
+ if (di < 0) {
+ di += 4*xx + 6;
+ } else {
+ di += 4*(xx - yy) + 10;
+ yy--;
+ draw_y0--;
+ draw_y1--;
+ draw_y2++;
+ draw_y3++;
+ draw_x4--;
+ draw_x5++;
+ draw_x6--;
+ draw_x7++;
+ }
+ xx++;
+ draw_x0++;
+ draw_x1--;
+ draw_x2++;
+ draw_x3--;
+ draw_y4++;
+ draw_y5++;
+ draw_y6--;
+ draw_y7--;
+
+ if ( (draw_x0 <= width()) && (draw_y0>=0) ) {
+ pixel(draw_x0, draw_y0, color);
+ }
+
+ if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) {
+ pixel(draw_x1, draw_y1, color);
+ }
+
+ if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) {
+ pixel(draw_x2, draw_y2, color);
+ }
+
+ if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) {
+ pixel(draw_x3, draw_y3, color);
+ }
+
+ if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) {
+ pixel(draw_x4, draw_y4, color);
+ }
+
+ if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) {
+ pixel(draw_x5, draw_y5, color);
+ }
+ if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) {
+ pixel(draw_x6, draw_y6, color);
+ }
+ if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) {
+ pixel(draw_x7, draw_y7, color);
+ }
+ }
+ return;
+}
+
+void SPI_TFT::fillcircle(int x, int y, int r, int color)
+{
+ int i;
+ for (i = 0; i <= r; i++)
+ circle(x,y,i,color);
+}
+
+
+
+void SPI_TFT::hline(int x0, int x1, int y, int color)
+{
+ int w,i;
+ w = x1 - x0 + 1;
+ window(x0,y,w,1);
+ wr_cmd(0x22);
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ for (i = 0; i < ( width() * height()); i++)
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+#endif
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ } else {
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+#endif
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+#if defined USE_DMA
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
+ LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1; // start DMA
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
+ }
+#else
+ for (i=0; i<w; i++) {
+ _spi.write(color);
+ }
+
+#endif
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+void SPI_TFT::vline(int x, int y0, int y1, int color)
+{
+ int h;
+ h = y1 - y0 + 1;
+ window(x,y0,1,h);
+ wr_cmd(0x22);
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+#endif
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ } else {
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+#endif
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+#if defined USE_DMA
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
+ LPC_GPDMACH0->DMACCControl = h | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
+ }
+#else
+ for (int y=0; y<h; y++) {
+ _spi.write(color);
+ }
+#endif
+
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+
+
+void SPI_TFT::line(int x0, int y0, int x1, int y1, int color)
+{
+ //WindowMax();
+ int dx = 0, dy = 0;
+ int dx_sym = 0, dy_sym = 0;
+ int dx_x2 = 0, dy_x2 = 0;
+ int di = 0;
+
+ dx = x1-x0;
+ dy = y1-y0;
+
+ if (dx == 0) { /* vertical line */
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+ return;
+ }
+
+ if (dx > 0) {
+ dx_sym = 1;
+ } else {
+ dx_sym = -1;
+ }
+ if (dy == 0) { /* horizontal line */
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+ return;
+ }
+
+ if (dy > 0) {
+ dy_sym = 1;
+ } else {
+ dy_sym = -1;
+ }
+
+ dx = dx_sym*dx;
+ dy = dy_sym*dy;
+
+ dx_x2 = dx*2;
+ dy_x2 = dy*2;
+
+ if (dx >= dy) {
+ di = dy_x2 - dx;
+ while (x0 != x1) {
+
+ pixel(x0, y0, color);
+ x0 += dx_sym;
+ if (di<0) {
+ di += dy_x2;
+ } else {
+ di += dy_x2 - dx_x2;
+ y0 += dy_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ } else {
+ di = dx_x2 - dy;
+ while (y0 != y1) {
+ pixel(x0, y0, color);
+ y0 += dy_sym;
+ if (di < 0) {
+ di += dx_x2;
+ } else {
+ di += dx_x2 - dy_x2;
+ x0 += dx_sym;
+ }
+ }
+ pixel(x0, y0, color);
+ }
+ return;
+}
+
+
+void SPI_TFT::rect(int x0, int y0, int x1, int y1, int color)
+{
+
+ if (x1 > x0) hline(x0,x1,y0,color);
+ else hline(x1,x0,y0,color);
+
+ if (y1 > y0) vline(x0,y0,y1,color);
+ else vline(x0,y1,y0,color);
+
+ if (x1 > x0) hline(x0,x1,y1,color);
+ else hline(x1,x0,y1,color);
+
+ if (y1 > y0) vline(x1,y0,y1,color);
+ else vline(x1,y1,y0,color);
+
+ return;
+}
+
+
+
+void SPI_TFT::fillrect(int x0, int y0, int x1, int y1, int color)
+{
+
+ int h = y1 - y0 + 1;
+ int w = x1 - x0 + 1;
+ int pixel = h * w;
+ #if defined USE_DMA
+ int dma_count;
+ #endif
+ window(x0,y0,w,h);
+ wr_cmd(0x22);
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ #if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+ #endif
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ } else {
+ #if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+ #endif
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+ #if defined USE_DMA
+ do {
+ if (pixel > 4095) {
+ dma_count = 4095;
+ pixel = pixel - 4095;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)&color;
+ LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) ; // 16 bit transfer , no address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+
+ } while (pixel > 0);
+
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
+ }
+
+ #else // no DMA
+ for (int p=0; p<pixel; p++) {
+ _spi.write(color);
+ }
+ #endif
+
+ _cs = 1;
+ WindowMax();
+ return;
+}
+
+
+void SPI_TFT::locate(int x, int y)
+{
+ char_x = x;
+ char_y = y;
+}
+
+
+
+int SPI_TFT::columns()
+{
+ return width() / font[1];
+}
+
+
+
+int SPI_TFT::rows()
+{
+ return height() / font[2];
+}
+
+
+
+int SPI_TFT::_putc(int value)
+{
+ if (value == '\n') { // new line
+ char_x = 0;
+ char_y = char_y + font[2];
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ } else {
+ character(char_x, char_y, value);
+ }
+ return value;
+}
+
+
+
+
+void SPI_TFT::character(int x, int y, int c)
+{
+ unsigned int hor,vert,offset,bpl,j,i,b,p;
+ unsigned char* zeichen;
+ unsigned char z,w;
+ #if defined USE_DMA
+ unsigned int pixel;
+ unsigned int dma_count,dma_off;
+ uint16_t *buffer;
+ #endif
+
+ if ((c < 31) || (c > 127)) return; // test char range
+
+ // read font parameter from start of array
+ offset = font[0]; // bytes / char
+ hor = font[1]; // get hor size of font
+ vert = font[2]; // get vert size of font
+ bpl = font[3]; // bytes per line
+
+ if (char_x + hor > width()) {
+ char_x = 0;
+ char_y = char_y + vert;
+ if (char_y >= height() - font[2]) {
+ char_y = 0;
+ }
+ }
+ window(char_x, char_y,hor,vert); // char box
+ wr_cmd(0x22);
+
+#if defined USE_DMA
+ pixel = hor * vert; // calculate buffer size
+
+ buffer = (uint16_t *) malloc (2*pixel); // we need a buffer for the 16 bit
+ if (buffer == NULL) {
+ //led = 1;
+ //pc.printf("Malloc error !\n\r");
+ return; // error no memory
+ }
+
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ p = 0;
+ // construct the char into the buffer
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ buffer[p] = _background;
+ } else {
+ buffer[p] = _foreground;
+ }
+ p++;
+ }
+ }
+
+ // copy the buffer with DMA SPI to display
+ dma_off = 0; // offset for DMA transfer
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ } else {
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+
+ // start DMA
+ do {
+ if (pixel > 4095) { // this is a giant font !
+ dma_count = 4095;
+ pixel = pixel - 4095;
+ } else {
+ dma_count = pixel;
+ pixel = 0;
+ }
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + dma_off);
+ LPC_GPDMACH0->DMACCControl = dma_count | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+ dma_off = dma_off + dma_count;
+ } while (pixel > 0);
+
+ free ((uint16_t *) buffer);
+
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI0 not idle
+ /* disable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x0;
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
+ /* disable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x0;
+ }
+
+#else
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+ } else {
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+ zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
+ w = zeichen[0]; // width of actual char
+ for (j=0; j<vert; j++) { // vert line
+ for (i=0; i<hor; i++) { // horz line
+ z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
+ b = 1 << (j & 0x07);
+ if (( z & b ) == 0x00) {
+ _spi.write(_background);
+ } else {
+ _spi.write(_foreground);
+ }
+ }
+ }
+#endif
+
+ _cs = 1;
+ WindowMax();
+ if ((w + 2) < hor) { // x offset to next char
+ char_x += w + 2;
+ } else char_x += hor;
+
+}
+
+
+void SPI_TFT::set_font(unsigned char* f)
+{
+ font = f;
+}
+
+
+
+void SPI_TFT::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
+{
+ unsigned int j;
+ int padd;
+ unsigned short *bitmap_ptr = (unsigned short *)bitmap;
+ // the lines are padded to multiple of 4 bytes in a bitmap
+ padd = -1;
+ do {
+ padd ++;
+ } while (2*(w + padd)%4 != 0);
+ window(x, y, w, h);
+ wr_cmd(0x22);
+ _cs = 0;
+ if (spi_port == 0) { // TFT on SSP0
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+#endif
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+
+ } else {
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+#endif
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data command
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+
+ bitmap_ptr += ((h - 1)* (w + padd));
+#if defined USE_DMA
+ for (j = 0; j < h; j++) { //Lines
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)bitmap_ptr;
+ LPC_GPDMACH0->DMACCControl = w | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+
+ bitmap_ptr -= w;
+ bitmap_ptr -= padd;
+ }
+#else
+ unsigned int i;
+ for (j = 0; j < h; j++) { //Lines
+ for (i = 0; i < w; i++) { // copy pixel data to TFT
+ _spi.write(*bitmap_ptr); // one line
+ bitmap_ptr++;
+ }
+ bitmap_ptr -= 2*w;
+ bitmap_ptr -= padd;
+ }
+#endif
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
+ }
+ _cs = 1;
+ WindowMax();
+}
+
+
+int SPI_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
+{
+
+#define OffsetPixelWidth 18
+#define OffsetPixelHeigh 22
+#define OffsetFileSize 34
+#define OffsetPixData 10
+#define OffsetBPP 28
+
+ char filename[50];
+ unsigned char BMP_Header[54];
+ unsigned short BPP_t;
+ unsigned int PixelWidth,PixelHeigh,start_data;
+ unsigned int i,off;
+ int padd,j;
+ unsigned short *line;
+
+ // get the filename
+ LocalFileSystem local("local");
+ sprintf(&filename[0],"/local/");
+ i=7;
+ while (*Name_BMP!='\0') {
+ filename[i++]=*Name_BMP++;
+ }
+
+ fprintf(stderr, "filename : %s \n\r",filename);
+
+ FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
+ if (!Image) {
+ return(0); // error file not found !
+ }
+
+ fread(&BMP_Header[0],1,54,Image); // get the BMP Header
+
+ if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
+ fclose(Image);
+ return(-1); // error no BMP file
+ }
+
+ BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
+ if (BPP_t != 0x0010) {
+ fclose(Image);
+ return(-2); // error no 16 bit BMP
+ }
+
+ PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
+ PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
+ if (PixelHeigh > height() + y || PixelWidth > width() + x) {
+ fclose(Image);
+ return(-3); // to big
+ }
+
+ start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
+
+ line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
+ if (line == NULL) {
+ return(-4); // error no memory
+ }
+
+ // the bmp lines are padded to multiple of 4 bytes
+ padd = -1;
+ do {
+ padd ++;
+ } while ((PixelWidth * 2 + padd)%4 != 0);
+
+
+//fseek(Image, 70 ,SEEK_SET);
+ window(x, y,PixelWidth ,PixelHeigh);
+ wr_cmd(0x22);
+ _cs = 0;
+
+ if (spi_port == 0) { // TFT on SSP0
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP0->DR; // we send to SSP0
+ /* Enable SSP0 for DMA. */
+ LPC_SSP0->DMACR = 0x2;
+#endif
+ LPC_SSP0->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP0->DR = 0x72; // start Data
+ LPC_SSP0->CR0 |= 0x08UL; // set to 16 bit
+
+ } else {
+#if defined USE_DMA
+ LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
+ /* Enable SSP1 for DMA. */
+ LPC_SSP1->DMACR = 0x2;
+#endif
+ LPC_SSP1->CR0 &= ~(0x08UL); // set to 8 bit
+ LPC_SSP1->DR = 0x72; // start Data
+ LPC_SSP1->CR0 |= 0x08UL; // set to 16 bit
+ }
+ for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
+ off = j * (PixelWidth * 2 + padd) + start_data; // start of line
+ fseek(Image, off ,SEEK_SET);
+ fread(line,1,PixelWidth * 2,Image); // read a line - slow !
+#if defined USE_DMA
+ LPC_GPDMA->DMACIntTCClear = 0x1;
+ LPC_GPDMA->DMACIntErrClr = 0x1;
+ LPC_GPDMACH0->DMACCSrcAddr = (uint32_t)line;
+ LPC_GPDMACH0->DMACCControl = PixelWidth | (1UL << 18) | (1UL << 21) | (1UL << 31) | DMA_CHANNEL_SRC_INC ; // 16 bit transfer , address increment, interrupt
+ LPC_GPDMACH0->DMACCConfig = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | (spi_port ? DMA_DEST_SSP1_TX : DMA_DEST_SSP0_TX);
+ LPC_GPDMA->DMACSoftSReq = 0x1;
+ do {
+ } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
+#else
+ for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
+ _spi.write(line[i]); // one 16 bit pixel
+ }
+#endif
+ }
+ if (spi_port == 0) { // TFT on SSP0
+ do {
+ } while ((LPC_SSP0->SR & 0x10) == 0x10); // SPI FIFO not empty
+ } else {
+ do {
+ } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI FIFO not empty
+ }
+ _cs = 1;
+ free (line);
+ fclose(Image);
+ WindowMax();
+ return(1);
}
\ No newline at end of file
--- a/SPI_TFT.h Fri Oct 12 10:03:42 2012 +0000
+++ b/SPI_TFT.h Sun Feb 03 00:28:19 2013 +0000
@@ -1,407 +1,408 @@
-/* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
- * Copyright (c) 2011 Peter Drescher - DC2PD
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
- /* change the char position handling
- * use pixel (x,y) instadt of colum row */
-
-
-#ifndef MBED_SPI_TFT_H
-#define MBED_SPI_TFT_H
-
-
-#include "mbed.h"
-#include "GraphicsDisplay.h"
-
-#define RGB(r,g,b) (((r&0xF8)<<8)|((g&0xFC)<<3)|((b&0xF8)>>3)) //5 red | 6 green | 5 blue
-
-#define SPI_START (0x70) /* Start byte for SPI transfer */
-#define SPI_RD (0x01) /* WR bit 1 within start */
-#define SPI_WR (0x00) /* WR bit 0 within start */
-#define SPI_DATA (0x02) /* RS bit 1 within start byte */
-#define SPI_INDEX (0x00) /* RS bit 0 within start byte */
-
-
-/* some RGB color definitions */
-#define Black 0x0000 /* 0, 0, 0 */
-#define Navy 0x000F /* 0, 0, 128 */
-#define DarkGreen 0x03E0 /* 0, 128, 0 */
-#define DarkCyan 0x03EF /* 0, 128, 128 */
-#define Maroon 0x7800 /* 128, 0, 0 */
-#define Purple 0x780F /* 128, 0, 128 */
-#define Olive 0x7BE0 /* 128, 128, 0 */
-#define LightGrey 0xC618 /* 192, 192, 192 */
-#define DarkGrey 0x7BEF /* 128, 128, 128 */
-#define Blue 0x001F /* 0, 0, 255 */
-#define Green 0x07E0 /* 0, 255, 0 */
-#define Cyan 0x07FF /* 0, 255, 255 */
-#define Red 0xF800 /* 255, 0, 0 */
-#define Magenta 0xF81F /* 255, 0, 255 */
-#define Yellow 0xFFE0 /* 255, 255, 0 */
-#define White 0xFFFF /* 255, 255, 255 */
-#define Orange 0xFD20 /* 255, 165, 0 */
-#define GreenYellow 0xAFE5 /* 173, 255, 47 */
-
-
-// some defines for the DMA use
-#define DMA_CHANNEL_ENABLE 1
-#define DMA_TRANSFER_TYPE_M2P (1UL << 11)
-#define DMA_CHANNEL_TCIE (1UL << 31)
-#define DMA_CHANNEL_SRC_INC (1UL << 26)
-#define DMA_MASK_IE (1UL << 14)
-#define DMA_MASK_ITC (1UL << 15)
-#define DMA_SSP1_TX (1UL << 2)
-#define DMA_SSP0_TX (0)
-#define DMA_DEST_SSP1_TX (2UL << 6)
-#define DMA_DEST_SSP0_TX (0UL << 6)
-
-
-/** Display control class, based on GraphicsDisplay and TextDisplay
- *
- * Example:
- * @code
- * #include "stdio.h"
- * #include "mbed.h"
- * #include "SPI_TFT.h"
- * #include "string"
- * #include "Arial12x12.h"
- * #include "Arial24x23.h"
- *
- *
- *
- * // the TFT is connected to SPI pin 5-7
- * SPI_TFT TFT(p5, p6, p7, p8, p15,"TFT"); // mosi, miso, sclk, cs, reset
- *
- * int main() {
- * TFT.claim(stdout); // send stdout to the TFT display
- * //TFT.claim(stderr); // send stderr to the TFT display
- *
- * TFT.background(Black); // set background to black
- * TFT.foreground(White); // set chars to white
- * TFT.cls(); // clear the screen
- * TFT.set_font((unsigned char*) Arial12x12); // select the font
- *
- * TFT.set_orientation(0);
- * TFT.locate(0,0);
- * printf(" Hello Mbed 0");
- * TFT.set_font((unsigned char*) Arial24x23); // select font 2
- * TFT.locate(48,115);
- * TFT.printf("Bigger Font");
- * }
- * @endcode
- */
- class SPI_TFT : public GraphicsDisplay {
- public:
-
- /** Create a SPI_TFT object connected to SPI and two pins
- *
- * @param mosi,miso,sclk SPI
- * @param cs pin connected to CS of display
- * @param reset pin connected to RESET of display
- *
- */
- SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset,const char* name ="TFT");
-
- /** Get the width of the screen in pixel
- *
- * @param
- * @returns width of screen in pixel
- *
- */
- virtual int width();
-
- /** Get the height of the screen in pixel
- *
- * @returns height of screen in pixel
- *
- */
- virtual int height();
-
- /** Draw a pixel at x,y with color
- *
- * @param x horizontal position
- * @param y vertical position
- * @param color 16 bit pixel color
- */
- virtual void pixel(int x, int y,int colour);
-
- /** draw a circle
- *
- * @param x0,y0 center
- * @param r radius
- * @param color 16 bit color *
- *
- */
- void circle(int x, int y, int r, int colour);
-
- /** draw a filled circle
- *
- * @param x0,y0 center
- * @param r radius
- * @param color 16 bit color *
- *
- * use circle with different radius,
- * can miss some pixel
- */
- void fillcircle(int x, int y, int r, int colour);
-
-
-
- /** draw a 1 pixel line
- *
- * @param x0,y0 start point
- * @param x1,y1 stop point
- * @param color 16 bit color
- *
- */
- void line(int x0, int y0, int x1, int y1, int colour);
-
- /** draw a rect
- *
- * @param x0,y0 top left corner
- * @param x1,y1 down right corner
- * @param color 16 bit color
- * *
- */
- void rect(int x0, int y0, int x1, int y1, int colour);
-
- /** draw a filled rect
- *
- * @param x0,y0 top left corner
- * @param x1,y1 down right corner
- * @param color 16 bit color
- *
- */
- void fillrect(int x0, int y0, int x1, int y1, int colour);
-
- /** setup cursor position
- *
- * @param x x-position (top left)
- * @param y y-position
- */
- void locate(int x, int y);
-
- /** Fill the screen with _backgroun color
- *
- */
- virtual void cls (void);
-
- /** calculate the max number of char in a line
- *
- * @returns max columns
- * depends on actual font size
- *
- */
- int columns(void);
-
- /** calculate the max number of columns
- *
- * @returns max column
- * depends on actual font size
- *
- */
- int rows(void);
-
- /** put a char on the screen
- *
- * @param value char to print
- * @returns printed char
- *
- */
- int _putc(int value);
-
- /** draw a character on given position out of the active font to the TFT
- *
- * @param x x-position of char (top left)
- * @param y y-position
- * @param c char to print
- *
- */
- virtual void character(int x, int y, int c);
-
- /** paint a bitmap on the TFT
- *
- * @param x,y : upper left corner
- * @param w width of bitmap
- * @param h high of bitmap
- * @param *bitmap pointer to the bitmap data
- *
- * bitmap format: 16 bit R5 G6 B5
- *
- * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5
- * use winhex to load this file and mark data stating at offset 0x46 to end
- * use edit -> copy block -> C Source to export C array
- * paste this array into your program
- *
- * define the array as static const unsigned char to put it into flash memory
- * cast the pointer to (unsigned char *) :
- * tft.Bitmap(10,40,309,50,(unsigned char *)scala);
- */
- void Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap);
-
-
- /** paint a 16 bit BMP from local filesytem on the TFT (slow)
- *
- * @param x,y : upper left corner
- * @param *Name_BMP name of the BMP file
- * @returns 1 if bmp file was found and painted
- * @returns -1 if bmp file was found not found
- * @returns -2 if bmp file is not 16bit
- * @returns -3 if bmp file is to big for screen
- * @returns -4 if buffer malloc go wrong
- *
- * bitmap format: 16 bit R5 G6 B5
- *
- * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5
- * copy to internal file system
- *
- */
-
- int BMP_16(unsigned int x, unsigned int y, const char *Name_BMP);
-
-
-
- /** select the font to use
- *
- * @param f pointer to font array
- *
- * font array can created with GLCD Font Creator from http://www.mikroe.com
- * you have to add 4 parameter at the beginning of the font array to use:
- * - the number of byte / char
- * - the vertial size in pixel
- * - the horizontal size in pixel
- * - the number of byte per vertical line
- * you also have to change the array to char[]
- *
- */
- void set_font(unsigned char* f);
-
- /** Set the orientation of the screen
- * x,y: 0,0 is always top left
- *
- * @param o direction to use the screen (0-3) 90� Steps
- *
- */
- void set_orientation(unsigned int o);
-
- SPI _spi;
- DigitalOut _cs;
- DigitalOut _reset;
- unsigned char* font;
-
-
-
-
-protected:
-
- /** Set draw window region to whole screen
- *
- */
- void WindowMax (void);
-
-
- /** draw a horizontal line
- *
- * @param x0 horizontal start
- * @param x1 horizontal stop
- * @param y vertical position
- * @param color 16 bit color
- *
- */
- void hline(int x0, int x1, int y, int colour);
-
- /** draw a vertical line
- *
- * @param x horizontal position
- * @param y0 vertical start
- * @param y1 vertical stop
- * @param color 16 bit color
- */
- void vline(int y0, int y1, int x, int colour);
-
- /** Set draw window region
- *
- * @param x horizontal position
- * @param y vertical position
- * @param w window width in pixel
- * @param h window height in pixels
- */
- void window (unsigned int x, unsigned int y, unsigned int w, unsigned int h);
-
-
-
- /** Init the HX8347D controller
- *
- */
- void tft_reset();
-
- /** Write data to the LCD controller
- *
- * @param dat data written to LCD controller
- *
- */
- //void wr_dat(unsigned int value);
- void wr_dat(unsigned char value);
-
- /** Write a command the LCD controller
- *
- * @param cmd: command to be written
- *
- */
- void wr_cmd(unsigned char value);
-
- /** Start data sequence to the LCD controller
- *
- */
- //void wr_dat_start();
-
- /** Stop of data writing to the LCD controller
- *
- */
- //void wr_dat_stop();
-
- /** write data to the LCD controller
- *
- * @param data to be written
- * *
- */
- void wr_dat_only(unsigned short dat);
-
- /** Read data from the LCD controller
- *
- * @returns data from LCD controller
- *
- */
- unsigned short rd_dat(void);
-
- /** Write a value to the to a LCD register
- *
- * @param reg register to be written
- * @param val data to be written
- */
- void wr_reg (unsigned char reg, unsigned char val);
-
- /** Read a LCD register
- *
- * @param reg register to be read
- * @returns value of the register
- */
- unsigned short rd_reg (unsigned char reg);
-
- unsigned char spi_port;
- unsigned int orientation;
- unsigned int char_x;
- unsigned int char_y;
-
-
-};
-
-#endif
+/* mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
+ * Copyright (c) 2011 Peter Drescher - DC2PD
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+ /* change the char position handling
+ * use pixel (x,y) instadt of colum row */
+
+
+#ifndef MBED_SPI_TFT_H
+#define MBED_SPI_TFT_H
+
+//#define NO_DMA
+
+#include "mbed.h"
+#include "GraphicsDisplay.h"
+
+#define RGB(r,g,b) (((r&0xF8)<<8)|((g&0xFC)<<3)|((b&0xF8)>>3)) //5 red | 6 green | 5 blue
+
+#define SPI_START (0x70) /* Start byte for SPI transfer */
+#define SPI_RD (0x01) /* WR bit 1 within start */
+#define SPI_WR (0x00) /* WR bit 0 within start */
+#define SPI_DATA (0x02) /* RS bit 1 within start byte */
+#define SPI_INDEX (0x00) /* RS bit 0 within start byte */
+
+
+/* some RGB color definitions */
+#define Black 0x0000 /* 0, 0, 0 */
+#define Navy 0x000F /* 0, 0, 128 */
+#define DarkGreen 0x03E0 /* 0, 128, 0 */
+#define DarkCyan 0x03EF /* 0, 128, 128 */
+#define Maroon 0x7800 /* 128, 0, 0 */
+#define Purple 0x780F /* 128, 0, 128 */
+#define Olive 0x7BE0 /* 128, 128, 0 */
+#define LightGrey 0xC618 /* 192, 192, 192 */
+#define DarkGrey 0x7BEF /* 128, 128, 128 */
+#define Blue 0x001F /* 0, 0, 255 */
+#define Green 0x07E0 /* 0, 255, 0 */
+#define Cyan 0x07FF /* 0, 255, 255 */
+#define Red 0xF800 /* 255, 0, 0 */
+#define Magenta 0xF81F /* 255, 0, 255 */
+#define Yellow 0xFFE0 /* 255, 255, 0 */
+#define White 0xFFFF /* 255, 255, 255 */
+#define Orange 0xFD20 /* 255, 165, 0 */
+#define GreenYellow 0xAFE5 /* 173, 255, 47 */
+
+
+// some defines for the DMA use
+#define DMA_CHANNEL_ENABLE 1
+#define DMA_TRANSFER_TYPE_M2P (1UL << 11)
+#define DMA_CHANNEL_TCIE (1UL << 31)
+#define DMA_CHANNEL_SRC_INC (1UL << 26)
+#define DMA_MASK_IE (1UL << 14)
+#define DMA_MASK_ITC (1UL << 15)
+#define DMA_SSP1_TX (1UL << 2)
+#define DMA_SSP0_TX (0)
+#define DMA_DEST_SSP1_TX (2UL << 6)
+#define DMA_DEST_SSP0_TX (0UL << 6)
+
+
+/** Display control class, based on GraphicsDisplay and TextDisplay
+ *
+ * Example:
+ * @code
+ * #include "stdio.h"
+ * #include "mbed.h"
+ * #include "SPI_TFT.h"
+ * #include "string"
+ * #include "Arial12x12.h"
+ * #include "Arial24x23.h"
+ *
+ *
+ *
+ * // the TFT is connected to SPI pin 5-7
+ * SPI_TFT TFT(p5, p6, p7, p8, p15,"TFT"); // mosi, miso, sclk, cs, reset
+ *
+ * int main() {
+ * TFT.claim(stdout); // send stdout to the TFT display
+ * //TFT.claim(stderr); // send stderr to the TFT display
+ *
+ * TFT.background(Black); // set background to black
+ * TFT.foreground(White); // set chars to white
+ * TFT.cls(); // clear the screen
+ * TFT.set_font((unsigned char*) Arial12x12); // select the font
+ *
+ * TFT.set_orientation(0);
+ * TFT.locate(0,0);
+ * printf(" Hello Mbed 0");
+ * TFT.set_font((unsigned char*) Arial24x23); // select font 2
+ * TFT.locate(48,115);
+ * TFT.printf("Bigger Font");
+ * }
+ * @endcode
+ */
+ class SPI_TFT : public GraphicsDisplay {
+ public:
+
+ /** Create a SPI_TFT object connected to SPI and two pins
+ *
+ * @param mosi,miso,sclk SPI
+ * @param cs pin connected to CS of display
+ * @param reset pin connected to RESET of display
+ *
+ */
+ SPI_TFT(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset,const char* name ="TFT");
+
+ /** Get the width of the screen in pixel
+ *
+ * @param
+ * @returns width of screen in pixel
+ *
+ */
+ virtual int width();
+
+ /** Get the height of the screen in pixel
+ *
+ * @returns height of screen in pixel
+ *
+ */
+ virtual int height();
+
+ /** Draw a pixel at x,y with color
+ *
+ * @param x horizontal position
+ * @param y vertical position
+ * @param color 16 bit pixel color
+ */
+ virtual void pixel(int x, int y,int colour);
+
+ /** draw a circle
+ *
+ * @param x0,y0 center
+ * @param r radius
+ * @param color 16 bit color *
+ *
+ */
+ void circle(int x, int y, int r, int colour);
+
+ /** draw a filled circle
+ *
+ * @param x0,y0 center
+ * @param r radius
+ * @param color 16 bit color *
+ *
+ * use circle with different radius,
+ * can miss some pixel
+ */
+ void fillcircle(int x, int y, int r, int colour);
+
+
+
+ /** draw a 1 pixel line
+ *
+ * @param x0,y0 start point
+ * @param x1,y1 stop point
+ * @param color 16 bit color
+ *
+ */
+ void line(int x0, int y0, int x1, int y1, int colour);
+
+ /** draw a rect
+ *
+ * @param x0,y0 top left corner
+ * @param x1,y1 down right corner
+ * @param color 16 bit color
+ * *
+ */
+ void rect(int x0, int y0, int x1, int y1, int colour);
+
+ /** draw a filled rect
+ *
+ * @param x0,y0 top left corner
+ * @param x1,y1 down right corner
+ * @param color 16 bit color
+ *
+ */
+ void fillrect(int x0, int y0, int x1, int y1, int colour);
+
+ /** setup cursor position
+ *
+ * @param x x-position (top left)
+ * @param y y-position
+ */
+ virtual void locate(int x, int y);
+
+ /** Fill the screen with _backgroun color
+ *
+ */
+ virtual void cls (void);
+
+ /** calculate the max number of char in a line
+ *
+ * @returns max columns
+ * depends on actual font size
+ *
+ */
+ virtual int columns(void);
+
+ /** calculate the max number of columns
+ *
+ * @returns max column
+ * depends on actual font size
+ *
+ */
+ virtual int rows(void);
+
+ /** put a char on the screen
+ *
+ * @param value char to print
+ * @returns printed char
+ *
+ */
+ virtual int _putc(int value);
+
+ /** draw a character on given position out of the active font to the TFT
+ *
+ * @param x x-position of char (top left)
+ * @param y y-position
+ * @param c char to print
+ *
+ */
+ virtual void character(int x, int y, int c);
+
+ /** paint a bitmap on the TFT
+ *
+ * @param x,y : upper left corner
+ * @param w width of bitmap
+ * @param h high of bitmap
+ * @param *bitmap pointer to the bitmap data
+ *
+ * bitmap format: 16 bit R5 G6 B5
+ *
+ * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5
+ * use winhex to load this file and mark data stating at offset 0x46 to end
+ * use edit -> copy block -> C Source to export C array
+ * paste this array into your program
+ *
+ * define the array as static const unsigned char to put it into flash memory
+ * cast the pointer to (unsigned char *) :
+ * tft.Bitmap(10,40,309,50,(unsigned char *)scala);
+ */
+ void Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap);
+
+
+ /** paint a 16 bit BMP from local filesytem on the TFT (slow)
+ *
+ * @param x,y : upper left corner
+ * @param *Name_BMP name of the BMP file
+ * @returns 1 if bmp file was found and painted
+ * @returns -1 if bmp file was found not found
+ * @returns -2 if bmp file is not 16bit
+ * @returns -3 if bmp file is to big for screen
+ * @returns -4 if buffer malloc go wrong
+ *
+ * bitmap format: 16 bit R5 G6 B5
+ *
+ * use Gimp to create / load , save as BMP, option 16 bit R5 G6 B5
+ * copy to internal file system
+ *
+ */
+
+ int BMP_16(unsigned int x, unsigned int y, const char *Name_BMP);
+
+
+
+ /** select the font to use
+ *
+ * @param f pointer to font array
+ *
+ * font array can created with GLCD Font Creator from http://www.mikroe.com
+ * you have to add 4 parameter at the beginning of the font array to use:
+ * - the number of byte / char
+ * - the vertial size in pixel
+ * - the horizontal size in pixel
+ * - the number of byte per vertical line
+ * you also have to change the array to char[]
+ *
+ */
+ void set_font(unsigned char* f);
+
+ /** Set the orientation of the screen
+ * x,y: 0,0 is always top left
+ *
+ * @param o direction to use the screen (0-3) 90� Steps
+ *
+ */
+ void set_orientation(unsigned int o);
+
+ SPI _spi;
+ DigitalOut _cs;
+ DigitalOut _reset;
+ unsigned char* font;
+
+
+
+
+protected:
+
+ /** Set draw window region to whole screen
+ *
+ */
+ void WindowMax (void);
+
+
+ /** draw a horizontal line
+ *
+ * @param x0 horizontal start
+ * @param x1 horizontal stop
+ * @param y vertical position
+ * @param color 16 bit color
+ *
+ */
+ void hline(int x0, int x1, int y, int colour);
+
+ /** draw a vertical line
+ *
+ * @param x horizontal position
+ * @param y0 vertical start
+ * @param y1 vertical stop
+ * @param color 16 bit color
+ */
+ void vline(int y0, int y1, int x, int colour);
+
+ /** Set draw window region
+ *
+ * @param x horizontal position
+ * @param y vertical position
+ * @param w window width in pixel
+ * @param h window height in pixels
+ */
+ void window (unsigned int x, unsigned int y, unsigned int w, unsigned int h);
+
+
+
+ /** Init the HX8347D controller
+ *
+ */
+ void tft_reset();
+
+ /** Write data to the LCD controller
+ *
+ * @param dat data written to LCD controller
+ *
+ */
+ //void wr_dat(unsigned int value);
+ void wr_dat(unsigned char value);
+
+ /** Write a command the LCD controller
+ *
+ * @param cmd: command to be written
+ *
+ */
+ void wr_cmd(unsigned char value);
+
+ /** Start data sequence to the LCD controller
+ *
+ */
+ //void wr_dat_start();
+
+ /** Stop of data writing to the LCD controller
+ *
+ */
+ //void wr_dat_stop();
+
+ /** write data to the LCD controller
+ *
+ * @param data to be written
+ * *
+ */
+ void wr_dat_only(unsigned short dat);
+
+ /** Read data from the LCD controller
+ *
+ * @returns data from LCD controller
+ *
+ */
+ unsigned short rd_dat(void);
+
+ /** Write a value to the to a LCD register
+ *
+ * @param reg register to be written
+ * @param val data to be written
+ */
+ void wr_reg (unsigned char reg, unsigned char val);
+
+ /** Read a LCD register
+ *
+ * @param reg register to be read
+ * @returns value of the register
+ */
+ unsigned short rd_reg (unsigned char reg);
+
+ unsigned char spi_port;
+ unsigned int orientation;
+ unsigned int char_x;
+ unsigned int char_y;
+
+
+};
+
+#endif