Diff: mbedGC/mbed_globals.h

Revision:

0:011be8250218

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+++ b/mbedGC/mbed_globals.h	Sat Apr 02 23:23:07 2011 +0000
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+/*
+* Copyright or � or Copr. 2010, Thomas SOETE
+* 
+* Author e-mail: thomas@soete.org
+* Library website : http://mbed.org/users/Alkorin/libraries/SimpleLib/
+* 
+* This software is governed by the CeCILL license under French law and
+* abiding by the rules of distribution of free software.  You can  use, 
+* modify and/ or redistribute the software under the terms of the CeCILL
+* license as circulated by CEA, CNRS and INRIA at the following URL
+* "http://www.cecill.info". 
+* 
+* As a counterpart to the access to the source code and  rights to copy,
+* modify and redistribute granted by the license, users are provided only
+* with a limited warranty  and the software's author,  the holder of the
+* economic rights,  and the successive licensors  have only  limited
+* liability. 
+* 
+* In this respect, the user's attention is drawn to the risks associated
+* with loading,  using,  modifying and/or developing or reproducing the
+* software by the user in light of its specific status of free software,
+* that may mean  that it is complicated to manipulate,  and  that  also
+* therefore means  that it is reserved for developers  and  experienced
+* professionals having in-depth computer knowledge. Users are therefore
+* encouraged to load and test the software's suitability as regards their
+* requirements in conditions enabling the security of their systems and/or 
+* data to be ensured and,  more generally, to use and operate it in the 
+* same conditions as regards security. 
+* 
+* The fact that you are presently reading this means that you have had
+* knowledge of the CeCILL license and that you accept its terms.
+*/
+
+#ifndef __SIMPLELIB_MBED_GLOBALS_H__
+#define __SIMPLELIB_MBED_GLOBALS_H__
+
+#include <LPC17xx.h>
+
+/* GLOBALS MACRO */
+#define GET_REGISTER8(reg)  *(volatile uint8_t *)(reg)
+#define GET_REGISTER16(reg) *(volatile uint16_t *)(reg)
+#define GET_REGISTER32(reg) *(volatile uint32_t *)(reg)
+
+#define SET_REGISTER8(reg, val)  *(uint8_t *)(reg)=(val)
+#define SET_REGISTER16(reg, val) *(uint16_t *)(reg)=(val)
+#define SET_REGISTER32(reg, val) *(uint32_t *)(reg)=(val)
+
+// See 34.3.2.5 p740
+#define BIT_BANDING_ADDRESS(reg, bit) (((reg) & 0xF0000000) | (0x02000000) | (((reg) & 0x000FFFFF) << 5) | ((bit) << 2))
+#define GET_BIT_ADDRESS(reg, bit) BIT_BANDING_ADDRESS(((uint32_t)&(reg)), (bit))
+#define GET_BIT_VALUE(reg, bit) GET_REGISTER32(GET_BIT_ADDRESS((reg), (bit)))
+#define SET_BIT_VALUE(reg, bit, value) SET_REGISTER32(GET_BIT_ADDRESS((reg), (bit)), (value))
+
+// Macro tools
+#define TOKENPASTE(x, y) x ## y
+#define TOKENPASTE2(x, y) TOKENPASTE(x, y)
+
+// Extern C
+#ifdef __cplusplus
+    #define EXTERN_C extern "C"
+#else
+    #define EXTERN_C
+#endif
+
+// Byte swap macros
+#define HTONS(x) (((((unsigned short)(x))>>8) & 0xff) | ((((unsigned short)(x)) & 0xff)<<8))
+#define NTOHS(x) (((((unsigned short)(x))>>8) & 0xff) | ((((unsigned short)(x)) & 0xff)<<8))
+#define HTONL(x) ((((x)>>24) & 0xffL) | (((x)>>8) & 0xff00L) | (((x)<<8) & 0xff0000L) | (((x)<<24) & 0xff000000L))
+#define NTOHL(x) ((((x)>>24) & 0xffL) | (((x)>>8) & 0xff00L) | (((x)<<8) & 0xff0000L) | (((x)<<24) & 0xff000000L))
+
+
+/** Constants **/
+// Peripheral Clock Selection register bit values (Table 42, p57)
+#define CCLK4   0U
+#define CCLK    1U
+#define CCLK2   2U
+#define CCLK8   3U
+
+#endif
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