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#include "touchpad.h"
#include "glcd.h"
static void spicb(SPIDriver *spip);
static const SPIConfig spicfg = {
NULL,
GPIOC,
TP_CS,
SPI_CR1_SPE | SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0,
};
void tpInit(void) {
spiStart(&SPID1, &spicfg);
}
uint16_t tpReadX(void) {
uint8_t txbuf[1];
uint8_t rxbuf[2];
uint16_t x;
txbuf[0] = 0x90;
SET_CS(0);
spiSend(&SPID1, 1, txbuf);
spiReceive(&SPID1, 2, rxbuf);
SET_CS(1);
x = rxbuf[0] << 4;
x |= rxbuf[1] >> 4;
x = (((lcdGetWidth()-1) * x)/2048);
switch(lcdGetOrientation()) {
case portrait:
break;
case portraitInv:
break;
case landscape:
break;
case landscapeInv:
break;
}
}
uint16_t tpReadY(void) {
uint8_t txbuf[1];
uint8_t rxbuf[2];
uint16_t y;
txbuf[0] = 0xd0;
SET_CS(0);
spiSend(&SPID1, 1, txbuf);
spiReceive(&SPID1, 2, rxbuf);
SET_CS(1);
y = rxbuf[0] << 4;
y |= rxbuf[1] >> 4;
y = (((lcdGetHeight()-1) * y)/2048);
return y;
}
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