X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=firmware%2Fapps%2Fradios%2Fnrf.c;h=76c396c6c5a0cafe61b79d30daae3623b686fee2;hp=1e1f937a7b98bfa4ebfb5852af4cf3890c4d8d8c;hb=6373a97ac3426c9d9966cf6a08286ecd13cc2ced;hpb=8013ee4ccda1a36d1e92de299710b1709b010c33

diff --git a/firmware/apps/radios/nrf.c b/firmware/apps/radios/nrf.c
index 1e1f937..76c396c 100644
--- a/firmware/apps/radios/nrf.c
+++ b/firmware/apps/radios/nrf.c
@@ -9,32 +9,48 @@
 #include "command.h"
 
 #include <signal.h>
-#include <io.h>
+#include <msp430.h>
 #include <iomacros.h>
 
 #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,
 
-#define RADIOACTIVE  P5OUT|=CE
-#define RADIOPASSIVE P5OUT&=~CE
+	/* handle fn */
+	nrf_handle_fn,
 
+	/* 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.
@@ -64,65 +80,66 @@ u8 nrftrans8(u8 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:
@@ -131,32 +148,33 @@ void nrfhandle(unsigned char app,
     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);
     break;
   case NRF_TX:
+  case NRF_TX_FLUSH:
   default:
     debugstr("Not yet supported.");
     txdata(app,verb,0);
     break;
   }
   
-  P5OUT|=SS;//End session
+
+  SETSS;//End session
   RADIOACTIVE;
 }