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touch.c
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touch.c
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#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <bcm2835.h>
#include <unistd.h>
#include "ili9340.h"
#include "xpt2046.h"
//#define T_CS BCM2835_SPI_CS0
#define T_CS BCM2835_SPI_CS1
#define _DEBUG_ 0
TouchInfo tinfo;
int ReadTFTConfig(char *path, int *width, int *height, int *offsetx, int *offsety) {
FILE *fp;
char buff[128];
// printf("path=%s\n",path);
fp = fopen(path,"r");
if(fp == NULL) return 0;
while (fgets(buff,128,fp) != NULL) {
// printf("buf=%s\n",buff);
// printf("buff[0]=%x\n",buff[0]);
if (buff[0] == '#') continue;
if (buff[0] == 0x0a) continue;
if (strncmp(buff, "width=", 6) == 0) {
sscanf(buff, "width=%d height=%d",width,height);
if(_DEBUG_)printf("width=%d height=%d\n",*width,*height);
} else if (strncmp(buff, "offsetx=", 8) == 0) {
sscanf(buff, "offsetx=%d",offsetx);
if(_DEBUG_)printf("offsetx=%d\n",*offsetx);
} else if (strncmp(buff, "offsety=", 8) == 0) {
sscanf(buff, "offsety=%d",offsety);
if(_DEBUG_)printf("offsety=%d\n",*offsety);
}
}
fclose(fp);
return 1;
}
int main(int argc, char **argv)
{
int i;
int screenWidth = 0;
int screenHeight = 0;
int offsetx = 0;
int offsety = 0;
uint16_t xpos,ypos;
uint16_t color;
uint8_t utf[64];
char dir[128];
char cpath[128];
if(_DEBUG_) printf("argv[0]=%s\n",argv[0]);
strcpy(dir, argv[0]);
for(i=strlen(dir);i>0;i--) {
if (dir[i-1] == '/') {
dir[i] = 0;
break;
} // end if
} // end for
if(_DEBUG_)printf("dir=%s\n",dir);
strcpy(cpath,dir);
strcat(cpath,"tft.conf");
if(_DEBUG_)printf("cpath=%s\n",cpath);
if (ReadTFTConfig(cpath, &screenWidth, &screenHeight, &offsetx, &offsety) == 0) {
printf("%s Not found\n",cpath);
return 0;
}
if(_DEBUG_)printf("ReadTFTConfig:screenWidth=%d height=%d\n",screenWidth, screenHeight);
printf("Your TFT resolution is %d x %d.\n",screenWidth, screenHeight);
printf("Your TFT offsetx is %d.\n",offsetx);
printf("Your TFT offsety is %d.\n",offsety);
#if 0
if (bcm2835_init() == -1) {
printf("bmc2835_init Error\n");
return 1;
}
#endif
// You can change font file
FontxFile fx32G[2];
FontxFile fx24G[2];
FontxFile fx16G[2];
Fontx_init(fx32G,"./fontx/ILGH32XB.FNT","./fontx/ILGZ32XB.FNT"); // 16x32Dot Gothic
Fontx_init(fx24G,"./fontx/ILGH24XB.FNT","./fontx/ILGZ24XB.FNT"); // 12x24Dot Gothic
Fontx_init(fx16G,"./fontx/ILGH16XB.FNT","./fontx/ILGZ16XB.FNT"); // 8x16Dot Gothic
FontxFile fx32M[2];
FontxFile fx24M[2];
FontxFile fx16M[2];
Fontx_init(fx32M,"./fontx/ILMH32XF.FNT","./fontx/ILMZ32XF.FNT"); // 16x32Dot Mincyo
Fontx_init(fx24M,"./fontx/ILMH24XF.FNT","./fontx/ILMZ24XF.FNT"); // 12x24Dot Mincyo
Fontx_init(fx16M,"./fontx/ILMH16XB.FNT","./fontx/ILMZ16XF.FNT"); // 8x16Dot Mincyo
xptInit(&tinfo);
lcdInit(screenWidth, screenHeight, offsetx, offsety);
lcdReset();
lcdSetup();
//drawString
lcdFillScreen(WHITE);
lcdSetFontDirection(DIRECTION90);
xpos = 180;
ypos = (screenHeight-1)-(32*1);
for (i=0;i<5;i++) {
lcdDrawRect(xpos-8, ypos+16, xpos+40, ypos-32, BLACK);
xptSetPoint(&tinfo, xpos-8 ,ypos+16 ,xpos+40, ypos-32, i);
xptDump(&tinfo);
color = BLACK;
// strcpy(utf,"1");
utf[0] = i + 48;
utf[1] = 0;
ypos = lcdDrawUTF8String(fx32G, xpos, ypos, utf, color);
ypos = ypos - 32;
}
xpos = 120;
ypos = (screenHeight-1)-(32*1);
for (i=0;i<5;i++) {
lcdDrawRect(xpos-8, ypos+16, xpos+40, ypos-32, BLACK);
xptSetPoint(&tinfo, xpos-8 ,ypos+16 ,xpos+40, ypos-32, i+5);
color = BLACK;
// strcpy(utf,"1");
utf[0] = i + 53;
utf[1] = 0;
ypos = lcdDrawUTF8String(fx32G, xpos, ypos, utf, color);
ypos = ypos - 32;
}
// read xpt2046
int pen_irq;
int id;
bcm2835_gpio_fsel(RPI_V2_GPIO_P1_13,BCM2835_GPIO_FSEL_INPT);
xpos = 40;
ypos = (screenHeight-1)-(32*1);
color = RED;
for (;;) {
usleep(10000); /* do it anyway ; settle time when pen goes up */
pen_irq = bcm2835_gpio_lev(RPI_V2_GPIO_P1_13);
if (pen_irq == LOW) { /* P1.18 == PenIRQ is LOW : touch! pen is down */
id = xptGetPoint(T_CS, &tinfo);
if (id != -1) {
if(_DEBUG_)printf("id=%d\n",id);
lcdInit(screenWidth, screenHeight, offsetx, offsety);
lcdSetFontDirection(DIRECTION90);
utf[0] = id + 48;
ypos = lcdDrawUTF8String(fx32G, xpos, ypos, utf, color);
}
}
}
}