121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
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#include "GT1151.h"
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GT1151_Dev Dev_Now, Dev_Old;
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UBYTE GT_Gesture_Mode = 0;
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void GT_Reset(void)
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{
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TRST_1;
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DEV_Delay_ms(100);
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TRST_0;
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DEV_Delay_ms(100);
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TRST_1;
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DEV_Delay_ms(100);
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}
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void GT_Write(UWORD Reg, char *Data, UBYTE len)
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{
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I2C_Write_Byte(Reg, Data, len);
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}
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void GT_Read(UWORD Reg, char *Data, UBYTE len)
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{
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I2C_Read_Byte(Reg, Data, len);
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}
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void GT_ReadVersion(void)
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{
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char buf[4];
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GT_Read(0x8140, buf, 4);
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printf("Product ID is %c %c %c %c \r\n", buf[0], buf[1], buf[2] ,buf[3]);
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}
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void GT_Init(void)
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{
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GT_Reset();
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GT_ReadVersion();
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}
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void GT_Gesture(void)
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{
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char buf[3] ={0x08, 0x00, 0xf8};
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GT_Write(0x8040, &buf[0], 1);
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GT_Write(0x8041, &buf[1], 1);
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GT_Write(0x8042, &buf[2], 1);
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GT_Gesture_Mode = 1;
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printf("into gesture mode \r\n");
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DEV_Delay_ms(1);
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}
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void GT_Gesture_Scan(void)
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{
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char buf;
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GT_Read(0x814c, &buf, 1);
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if(buf == 0xcc)
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{
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printf("gesture mode exiting \r\n");
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GT_Gesture_Mode = 0;
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GT_Reset();
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Dev_Old.X[0] = Dev_Now.X[0];
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Dev_Old.Y[0] = Dev_Now.Y[0];
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Dev_Old.S[0] = Dev_Now.S[0];
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}
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else
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{
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buf = 0x00;
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GT_Write(0x814c, &buf, 1);
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}
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}
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UBYTE GT_Scan(void)
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{
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char buf[100];
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char mask[1] = {0x00};
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if (Dev_Now.Touch == 1) {
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// Dev_Now.Touch = 0;
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if(GT_Gesture_Mode == 1)
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{
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GT_Gesture_Scan();
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return 1;
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}
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else
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{
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GT_Read(0x814E, buf, 1);
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if ((buf[0]&0x80) == 0x00) { //No new touch
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GT_Write(0x814E, mask, 1);
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DEV_Delay_ms(1);
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// printf("buffers status is 0 \r\n");
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return 1;
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}
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else {
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Dev_Now.TouchpointFlag = buf[0]&0x80;
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Dev_Now.TouchCount = buf[0]&0x0f;
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if (Dev_Now.TouchCount > 5 || Dev_Now.TouchCount < 1) {
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GT_Write(0x814E, mask, 1);
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// printf("TouchCount number is wrong \r\n");
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return 1;
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}
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GT_Read(0x814F, &buf[1], Dev_Now.TouchCount*8);
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GT_Write(0x814E, mask, 1);
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Dev_Old.X[0] = Dev_Now.X[0];
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Dev_Old.Y[0] = Dev_Now.Y[0];
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Dev_Old.S[0] = Dev_Now.S[0];
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for(UBYTE i=0; i<Dev_Now.TouchCount; i++) {
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Dev_Now.Touchkeytrackid[i] = buf[1 + 8*i];
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Dev_Now.X[i] = ((UWORD)buf[3+8*i] << 8) + buf[2+8*i];
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Dev_Now.Y[i] = ((UWORD)buf[5+8*i] << 8) + buf[4+8*i];
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Dev_Now.S[i] = ((UWORD)buf[7+8*i] << 8) + buf[6+8*i];
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}
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for(UBYTE i=0; i<Dev_Now.TouchCount; i++)
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printf("Point %d: X is %d, Y is %d, Size is %d \r\n", i+1, Dev_Now.X[i], Dev_Now.Y[i], Dev_Now.S[i]);
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return 0;
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}
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}
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}
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return 1;
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}
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