#include "nrf.h"
#include "spi.h"
-//Weird HOPE badge wiring. This was a fuckup.
-//BIT0 should be SS, but in point of fact it is IRQ.
-//BIT4 is actually SS, BIT5 is CE.
-#define SS BIT4
-#define CE BIT5;
+//! Handles a Nordic RF command.
+void nrf_handle_fn( uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len);
+
+// define the nrf app's app_t
+app_t const nrf_app = {
+
+ /* app number */
+ NRF,
+
+ /* handle fn */
+ nrf_handle_fn,
-#define RADIOACTIVE P5OUT|=CE
-#define RADIOPASSIVE P5OUT&=~CE
+ /* name */
+ "NRF",
+ /* desc */
+ "\tThe NRF app adds support for the NordicRF register\n"
+ "\tinterface.\n"
+};
+
+#define RADIOACTIVE SETCE
+#define RADIOPASSIVE CLRCE
//! Set up the pins for NRF mode.
void nrfsetup(){
- P5OUT|=SS;
- P5DIR&=~MISO;
- P5DIR|=MOSI+SCK+SS+CE;
-
+ SETSS;
+ SPIDIR&=~MISO;
+ SPIDIR|=MOSI+SCK;
+ DIRSS;
+ DIRCE;
//Begin a new transaction.
- P5OUT&=~SS;
- P5OUT|=SS;
+ CLRSS;
+ SETSS;
}
//! Read and write an NRF byte.
//! Writes a register
u8 nrf_regwrite(u8 reg, const u8 *buf, int len){
- P5OUT&=~SS;
+ CLRSS;
reg=nrftrans8(reg);
while(len--)
nrftrans8(*buf++);
- P5OUT|=SS;
+ SETSS;
return reg;//status
}
//! Reads a register
u8 nrf_regread(u8 reg, u8 *buf, int len){
- P5OUT&=~SS;
+ CLRSS;
reg=nrftrans8(reg);
while(len--)
*buf++=nrftrans8(0);
- P5OUT|=SS;
+ SETSS;
return reg;//status
}
//! Handles a Nordic RF command.
-void nrfhandle(unsigned char app,
- unsigned char verb,
- unsigned long len){
+void nrf_handle_fn( uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len)
+{
unsigned long i;
//Drop CE to passify radio.
RADIOPASSIVE;
//Raise !SS to end transaction, just in case we forgot.
- P5OUT|=SS;
+ SETSS;
nrfsetup();
switch(verb){
//PEEK and POKE might come later.
case READ:
case WRITE:
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ CLRSS; //Drop !SS to begin transaction.
for(i=0;i<len;i++)
cmddata[i]=nrftrans8(cmddata[i]);
- P5OUT|=SS; //Raise !SS to end transaction.
+ SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
case PEEK://Grab NRF Register
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ CLRSS; //Drop !SS to begin transaction.
nrftrans8(NRF_R_REGISTER | cmddata[0]); //000A AAAA
for(i=1;i<len;i++)
cmddata[i]=nrftrans8(cmddata[i]);
- P5OUT|=SS; //Raise !SS to end transaction.
+ SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
case POKE://Poke NRF Register
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ CLRSS; //Drop !SS to begin transaction.
nrftrans8(NRF_W_REGISTER | cmddata[0]); //001A AAAA
for(i=1;i<len;i++)
cmddata[i]=nrftrans8(cmddata[i]);
- P5OUT|=SS; //Raise !SS to end transaction.
+ SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
case SETUP:
break;
case NRF_RX:
RADIOPASSIVE;
-
//Get the packet.
- P5OUT&=~SS;
+ CLRSS;
nrftrans8(NRF_R_RX_PAYLOAD);
for(i=0;i<32;i++)
cmddata[i]=nrftrans8(0xde);
- P5OUT|=SS;
+ SETSS;
//no break
txdata(app,verb,32);
break;
case NRF_RX_FLUSH:
//Flush the buffer.
- P5OUT&=~SS;
+ CLRSS;
nrftrans8(NRF_FLUSH_RX);
- P5OUT|=SS;
+ SETSS;
//Return the packet.
txdata(app,verb,32);
}
- P5OUT|=SS;//End session
+ SETSS;//End session
RADIOACTIVE;
}