include/fx2macros.h

   1 /**
   2  * Copyright (C) 2008 Ubixum, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  17  **/
  18
  19 #ifndef FX2MACROS_H
  20 #define FX2MACROS_H
  21
  22 #include "fx2regs.h"
  23 #include "fx2types.h"
  24
  25 #define MSB(addr) (BYTE)((addr >> 8) & 0xff)
  26 #define LSB(addr) (BYTE)(addr & 0xff)
  27 #define MAKEWORD(msb,lsb) (((WORD)msb << 8) | lsb)
  28
  29 #define MSW(dword) (WORD)((dword >> 16) & 0xffff)
  30 #define LSW(dword) (WORD)(dword & 0xffff)
  31 #define MAKEDWORD(msw,lsw) (((DWORD)msw << 16) | lsw)
  32
  33 // clock stuff
  34
  35 typedef enum { CLK_12M =0, CLK_24M, CLK_48M} CLK_SPD;
  36 #define CPUFREQ (CLK_SPD)((CPUCS & bmCLKSPD) >> 3)
  37 #define SETCPUFREQ(SPD) CPUCS = (CPUCS & ~bmCLKSPD) | (SPD << 3)
  38
  39 #define XTAL (CPUFREQ==CLK_12M ? 12000000L :\
  40               CPUFREQ==CLK_24M ? 24000000L : 48000000L)
  41
  42
  43 // i2c stuff
  44 #define I2CFREQ ((I2CTL & bm400KHZ) ? 400000L : 100000L)
  45
  46
  47 // endpoints
  48 #define IFFREQ (IFCONFIG & bm3048MHZ ? 48000000L : 30000000L)
  49 #define SETIF30MHZ() IFCONFIG &= ~bm3048MHZ
  50 #define SETIF48MHZ() IFCONFIG |= bm3048MHZ
  51
  52
  53 // eeprom stuff
  54 #define EEPROM_TWO_BYTE (I2CS & bmBIT4)
  55
  56
  57 #endif