added ads7843 lld functions

drivers/ads7843.c

@@ -0,0 +1,41 @@
+#include "drivers/ads7843.h"
+
+#ifdef TOUCHPAD_USE_ADS7843
+
+__inline uint16_t lld_readX(void) {
+    uint8_t txbuf[1];
+    uint8_t rxbuf[2];
+    uint16_t x;
+
+    txbuf[0] = 0xd0;
+    SET_CS(0);
+    spiSend(&SPID1, 1, txbuf);
+    spiReceive(&SPID1, 2, rxbuf);
+    SET_CS(1);
+
+    x = rxbuf[0] << 4;
+    x |= rxbuf[1] >> 4;
+        
+    return x;
+}
+
+__inline uint16_t lld_readY(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;
+        
+    return x;
+
+}
+
+#endif
+

drivers/ads7843.h

@@ -0,0 +1,11 @@
+#ifndef ADS7843_H
+#define ADS7843_h
+
+#ifdef TOUCHPAD_USE_ADS7843
+#include "touchpad.h"
+
+uint16_t lld_readX(void):
+uint16_t lld_readY(void)
+
+#endif
+#endif

touchpad.c

@@ -17,37 +17,11 @@ void tpInit(SPIDriver *spip) {
 }
 
 static __inline uint16_t readX(void) {
-	uint8_t txbuf[1];
-	uint8_t rxbuf[2];
-	uint16_t x;
-
-	txbuf[0] = 0xd0;
-	SET_CS(0);
-	spiSend(&SPID1, 1, txbuf);
-	spiReceive(&SPID1, 2, rxbuf);
-	SET_CS(1);
-
-	x = rxbuf[0] << 4;
-	x |= rxbuf[1] >> 4;
-	
-	return x;
+	return lld_readX();
 }
 
 static __inline uint16_t readY(void) {
-	uint8_t txbuf[1];
-    uint8_t rxbuf[2];
-    uint16_t y;
-
-    txbuf[0] = 0x90;
-    SET_CS(0);
-    spiSend(&SPID1, 1, txbuf);
-    spiReceive(&SPID1, 2, rxbuf);
-    SET_CS(1);
-
-    y = rxbuf[0] << 4;
-    y |= rxbuf[1] >> 4;
-
-	return y;
+	return lld_readY();
 }
 
 uint8_t tpIRQ(void) {