Modified to work with two displays
Dependents: touch2 default CANary_9341_test CANary_merge
Fork of SPI_TFT by
Diff: SPI_TFTx2.cpp
- Revision:
- 8:a71243b666f9
- Parent:
- 7:e753bb62eeb9
- Child:
- 12:ff509eb02e37
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SPI_TFTx2.cpp Sun Feb 03 15:22:34 2013 +0000 @@ -0,0 +1,1276 @@ +/* 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_TFTx2.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_TFTx2::SPI_TFTx2(PinName mosi, PinName miso, PinName sclk, PinName cs0, PinName cs1, PinName reset, const char *name) + : _spi(mosi, miso, sclk), _cs0(cs0), _cs1(cs1), _reset(reset), GraphicsDisplay(name) +{ + orientation = 0; + char_x = 0; + _cs0 = 1; + _cs1 = 1; + + if (mosi == p11 || mosi == P0_18) spi_port = 0; // we must know the used SPI port to setup the DMA + else spi_port = 1; + seldisp = 2; + tft_reset(); +} + +int SPI_TFTx2::width() +{ + if (orientation == 0 || orientation == 2) return 240; + else return 320; +} + + +int SPI_TFTx2::height() +{ + if (orientation == 0 || orientation == 2) return 320; + else return 240; +} + + +void SPI_TFTx2::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(); +} + +void SPI_TFTx2::set_display(unsigned int o) +{ + seldisp = o; +} + +// write command to tft register + +void SPI_TFTx2::wr_cmd(unsigned char cmd) +{ + unsigned short spi_d; + spi_d = 0x7000 | cmd ; + + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + } + _cs0 = 1; + _cs1 = 1; +} + + + +void SPI_TFTx2::wr_dat(unsigned char dat) +{ + unsigned short spi_d; + spi_d = 0x7200 | dat; + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + } + _cs0 = 1; + _cs1 = 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_TFTx2::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_TFTx2::wr_reg (unsigned char reg, unsigned char val) +{ + wr_cmd(reg); + wr_dat(val); +} + +unsigned short SPI_TFTx2::rd_reg (unsigned char reg) +{ + wr_cmd(reg); + return(rd_dat()); +} + +void SPI_TFTx2::tft_reset() +{ + //static unsigned short driverCode; + _spi.format(16,3); // 16 bit spi mode 3 + _spi.frequency(48000000); // 48 Mhz SPI clock + _cs0 = 1; // cs high + _cs1 = 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_TFTx2::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; + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + } + _cs0 = 1; + _cs1 = 1; +} + + +void SPI_TFTx2::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_TFTx2::WindowMax (void) +{ + window (0, 0, width(), height()); +} + + +void SPI_TFTx2::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 + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + _cs0 = 1; + _cs1 = 1; +} + +void SPI_TFTx2::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_TFTx2::fillcircle(int x, int y, int r, int color) +{ + int i; + for (i = 0; i <= r; i++) + circle(x,y,i,color); +} + + + +void SPI_TFTx2::hline(int x0, int x1, int y, int color) +{ + int w,i; + w = x1 - x0 + 1; + window(x0,y,w,1); + wr_cmd(0x22); + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + _cs0 = 1; + _cs1 = 1; + WindowMax(); + return; +} + +void SPI_TFTx2::vline(int x, int y0, int y1, int color) +{ + int h; + h = y1 - y0 + 1; + window(x,y0,1,h); + wr_cmd(0x22); + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + _cs0 = 1; + _cs1 = 1; + WindowMax(); + return; +} + +void SPI_TFTx2::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_TFTx2::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_TFTx2::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); + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + + _cs0 = 1; + _cs1 = 1; + WindowMax(); + return; +} + + +void SPI_TFTx2::locate(int x, int y) +{ + char_x = x; + char_y = y; +} + + + +int SPI_TFTx2::columns() +{ + return width() / font[1]; +} + + + +int SPI_TFTx2::rows() +{ + return height() / font[2]; +} + + + +int SPI_TFTx2::_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_TFTx2::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 + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + _cs0 = 1; + _cs1 = 1; + WindowMax(); + if ((w + 2) < hor) { // x offset to next char + char_x += w + 2; + } else char_x += hor; + +} + + +void SPI_TFTx2::set_font(unsigned char* f) +{ + font = f; +} + +void SPI_TFTx2::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); + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + } + _cs0 = 1; + _cs1 = 1; + WindowMax(); +} + + +int SPI_TFTx2::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); + if (seldisp == 0) { + _cs0 = 0; + _cs1 = 1; + } else if (seldisp == 1) { + _cs0 = 1; + _cs1 = 0; + } else { + _cs0 = 0; + _cs1 = 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 + } + _cs0 = 1; + _cs1 = 1; + free (line); + fclose(Image); + WindowMax(); + return(1); +} \ No newline at end of file