Diff: C12832_lcd/C12832_lcd.cpp

Revision:

1:1c6a9eaf55b5

Parent:

0:f6a57b843f79

Child:

2:a87e255a8f3a

--- a/C12832_lcd/C12832_lcd.cpp	Mon Oct 15 21:48:28 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,593 +0,0 @@
-/* mbed library for the mbed Lab Board  128*32 pixel LCD
- * use C12832 controller
- * Copyright (c) 2012 Peter Drescher - DC2PD
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * 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.
- */
-
-// 13.10.12    initial design
-// optional defines :
-#define debug_lcd  1
-#define use_rtos 1
-
-#include "C12832_lcd.h"
-#include "mbed.h"
-#include "stdio.h"
-
-#define BPP    1       // Bits per pixel
-
-#ifdef debug_lcd
-extern Serial pc;
-#endif
-
-#ifdef use_rtos
-#include "rtos.h"
-#endif
-
- 
-
-C12832_LCD::C12832_LCD(const char* name)
-    : _spi(p5,NC,p7),_reset(p6),_A0(p8),_CS(p11),GraphicsDisplay(name)
-{
-    orientation = 1;
-    draw_mode = NORMAL;
-    char_x = 0;
-    lcd_reset();
-}
-
-int C12832_LCD::width()
-{
-    if (orientation == 0 || orientation == 2) return 32;
-    else return 128;
-}
-
-int C12832_LCD::height()
-{
-    if (orientation == 0 || orientation == 2) return 128;
-    else return 32;
-}
-
-
-void C12832_LCD::set_orientation(unsigned int o)
-{
-    orientation = o;
-    switch (o) {
-        case (0):
-            wr_cmd(0xA0);
-            wr_cmd(0xC0);
-            break;
-        case (1):
-            wr_cmd(0xA0);
-            wr_cmd(0xC8);
-            break;
-        case (2):
-            wr_cmd(0xA1);
-            wr_cmd(0xC8);
-            break;
-        case (3):
-            wr_cmd(0xA1);
-            wr_cmd(0xC0);
-            break;
-    }
-}
-
-void C12832_LCD::invert(unsigned int o)
-{
-    if(o == 0) wr_cmd(0xA6);
-    else wr_cmd(0xA7);
-}
-
-
-void C12832_LCD::set_contrast(unsigned int o)
-{
-    wr_cmd(0x81);      //  set volume
-    wr_cmd(o & 0x2F);
-}
-
-
-// write command to lcd controller
-
-void C12832_LCD::wr_cmd(unsigned char cmd)
-{
-    _A0 = 0;
-    _CS = 0;
-    LPC_SSP1->DR = cmd;
-    do {
-    } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle
-    _CS = 1;
-}
-
-// write data to lcd controller
-
-void C12832_LCD::wr_dat(unsigned char dat)
-{
-    _A0 = 1;
-    _CS = 0;
-    LPC_SSP1->DR = dat;
-    do {
-    } while ((LPC_SSP1->SR & 0x10) == 0x10); // wait for SPI1 idle
-    _CS = 1;
-}
-
-// reset and init the lcd controller
-
-void C12832_LCD::lcd_reset()
-{
-
-#ifdef debug_lcd
-    pc.printf("init LCD \n\r");
-#endif
-
-    _spi.format(8,3);                 // 8 bit spi mode 3
-    _spi.frequency(20000000);          // 19,2 Mhz SPI clock
-    DigitalOut _reset(p6);
-    _A0 = 0;
-    _CS = 1;
-    _reset = 0;                        // display reset
-    wait_us(50);
-    _reset = 1;                       // end reset
-    wait_ms(5);
-
-    /* Start Initial Sequence ----------------------------------------------------*/
-
-    wr_cmd(0xAE);   //  display off
-    wr_cmd(0xA2);   //  bias voltage
-
-    wr_cmd(0xA0);
-    wr_cmd(0xC8);   //  colum normal
-
-    wr_cmd(0x22);   //  voltage resistor ratio
-    wr_cmd(0x2F);   //  power on
-    wr_cmd(0xA4);   //  LCD display ram
-    wr_cmd(0x40);   // start line = 0
-
-    memset(buffer,0x00,sizeof(buffer));  // clear display buffer
-
-    wr_cmd(0xAF);     // display ON
-
-    wr_cmd(0x81);   //  set contrast
-    wr_cmd(0x17);   //  set contrast
-
-    wr_cmd(0xA6);     // display normal
-
-    //setup DMA channel 0
-    LPC_SC->PCONP |= (1UL << 29);   // Power up the GPDMA
-    LPC_GPDMA->DMACConfig = 1;          // enable DMA controller
-    LPC_GPDMA->DMACIntTCClear = 0x1;
-    LPC_GPDMA->DMACIntErrClr = 0x1;
-    LPC_GPDMACH0->DMACCLLI      = 0;
-
-    copy_to_lcd();
-
-}
-
-// set one pixel in buffer
-
-void C12832_LCD::pixel(int x, int y, int color)
-{
-
-    // first check paameter
-    if(x >= width() || y >= height() || x < 0 || y < 0) return;
-
-    if(draw_mode == NORMAL) {
-        if(color == 0)
-            buffer[x + (y/8) * 128] &= ~(1 << (y%8));
-        else
-            buffer[x + (y/8) * 128] |= (1 << (y%8));
-    } else { // XOR mode
-        if(color == 1)
-            buffer[x + (y/8) * 128] ^= (1 << (y%8));
-    }
-}
-
-// update lcd
-
-void C12832_LCD::copy_to_lcd(void)
-{
-    //int i;
-
-    wr_cmd(0x00);      // set column low nibble 0
-    wr_cmd(0x10);      // set column hi  nibble 0
-
-    wr_cmd(0xB0);      // set page address  0
-    _CS = 0;
-    _A0 = 1;
-    LPC_GPDMACH0->DMACCDestAddr = (uint32_t)&LPC_SSP1->DR; // we send to SSP1
-    LPC_SSP1->DMACR = 0x2;  // Enable SSP1 for DMA.
-    LPC_GPDMA->DMACIntTCClear = 0x1;
-    LPC_GPDMA->DMACIntErrClr = 0x1;
-    LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer);
-    LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) |  DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
-    LPC_GPDMACH0->DMACCConfig  = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX;
-    LPC_GPDMA->DMACSoftSReq = 0x1;
-    do {
-    } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
-    wr_cmd(0x00);      // set column low nibble 0
-    wr_cmd(0x10);      // set column hi  nibble 0
-    do {
-    } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
-    _CS = 1;
-    wr_cmd(0xB1);      // set page address  1
-
-    _CS = 0;
-    _A0 = 1;
-    LPC_GPDMA->DMACIntTCClear = 0x1;
-    LPC_GPDMA->DMACIntErrClr = 0x1;
-    LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 128);
-    LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) |  DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
-    LPC_GPDMACH0->DMACCConfig  = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX;
-    LPC_GPDMA->DMACSoftSReq = 0x1;
-    do {
-    } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
-    wr_cmd(0x00);      // set column low nibble 0
-    wr_cmd(0x10);      // set column hi  nibble 0
-    do {
-    } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
-    _CS = 1;
-    wr_cmd(0xB2);      // set page address  2
-    _CS = 0;
-    _A0 = 1;
-    LPC_GPDMA->DMACIntTCClear = 0x1;
-    LPC_GPDMA->DMACIntErrClr = 0x1;
-    LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 256);
-    LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) |  DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
-    LPC_GPDMACH0->DMACCConfig  = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX ;
-    LPC_GPDMA->DMACSoftSReq = 0x1;
-    do {
-    } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
-    wr_cmd(0x00);      // set column low nibble 0
-    wr_cmd(0x10);      // set column hi  nibble 0
-    do {
-    } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
-    _CS = 1;
-    wr_cmd(0xB3);      // set page address  3
-    _CS = 0;
-    _A0 = 1;
-    LPC_GPDMA->DMACIntTCClear = 0x1;
-    LPC_GPDMA->DMACIntErrClr = 0x1;
-    LPC_GPDMACH0->DMACCSrcAddr = (uint32_t) (buffer + 384);
-    LPC_GPDMACH0->DMACCControl = 128 | (1UL << 18) | (1UL << 31) |  DMA_CHANNEL_SRC_INC ; // 8 bit transfer , address increment, interrupt
-    LPC_GPDMACH0->DMACCConfig  = DMA_CHANNEL_ENABLE | DMA_TRANSFER_TYPE_M2P | DMA_DEST_SSP1_TX;
-    LPC_GPDMA->DMACSoftSReq = 0x1;
-    do {
-    } while ((LPC_GPDMA->DMACRawIntTCStat & 0x01) == 0); // DMA is running
-
-    do {
-    } while ((LPC_SSP1->SR & 0x10) == 0x10); // SPI1 not idle
-    _CS = 1;
-}
-
-void C12832_LCD::cls(void)
-{
-    memset(buffer,0x00,sizeof(buffer));  // clear display buffer
-    copy_to_lcd();
-}
-
-
-void C12832_LCD::line(int x0, int y0, int x1, int y1, int color)
-{
-    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 C12832_LCD::rect(int x0, int y0, int x1, int y1, int color)
-{
-
-    if (x1 > x0) line(x0,y0,x1,y0,color);
-    else  line(x1,y0,x0,y0,color);
-
-    if (y1 > y0) line(x0,y0,x0,y1,color);
-    else line(x0,y1,x0,y0,color);
-
-    if (x1 > x0) line(x0,y1,x1,y1,color);
-    else  line(x1,y1,x0,y1,color);
-
-    if (y1 > y0) line(x1,y0,x1,y1,color);
-    else line(x1,y1,x1,y0,color);
-
-    return;
-}
-
-void C12832_LCD::fillrect(int x0, int y0, int x1, int y1, int color)
-{
-    int l,c,i;
-    if(x0 > x1) {
-        i = x0;
-        x0 = x1;
-        x1 = i;
-    }
-
-    if(y0 > y1) {
-        i = y0;
-        y0 = y1;
-        y1 = i;
-    }
-
-    for(l = x0; l<= x1; l ++) {
-        for(c = y0; c<= y1; c++) {
-            pixel(l,c,color);
-        }
-    }
-}
-
-
-
-void C12832_LCD::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 C12832_LCD::fillcircle(int x, int y, int r, int color)
-{
-    int i;
-    for (i = 0; i <= r; i++)
-        circle(x,y,i,color);
-}
-
-void C12832_LCD::setmode(int mode)
-{
-    draw_mode = mode;
-}    
-
-void C12832_LCD::locate(int x, int y)
-{
-    char_x = x;
-    char_y = y;
-}
-
-
-
-int C12832_LCD::columns()
-{
-    return width() / font[1];
-}
-
-
-
-int C12832_LCD::rows()
-{
-    return height() / font[2];
-}
-
-
-
-int C12832_LCD::_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 C12832_LCD::character(int x, int y, int c)
-{
-    unsigned int hor,vert,offset,bpl,j,i,b;
-    unsigned char* zeichen;
-    unsigned char z,w;
-
-    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;
-        }
-    }
-
-    zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
-    w = zeichen[0];                          // width of actual char
-    // 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) {
-                pixel(x+i,y+j,0);
-            } else {
-                pixel(x+i,y+j,1);
-            }
-            
-        }
-    }
-    
-    char_x += w;    
-}
-
-
-void C12832_LCD::set_font(unsigned char* f)
-{
-    font = f;
-}
-
-
-