Changes so this checkout exactly matches CVS at -r release_tinyos_2_0_2_2.

[tinyos-2.x.git] / tos / lib / tosboot / msp430 / InternalFlashC.nc

diff --git a/tos/lib/tosboot/msp430/InternalFlashC.nc b/tos/lib/tosboot/msp430/InternalFlashC.nc
deleted file mode 100644 (file)
index a913bd7..0000000
--- a/tos/lib/tosboot/msp430/InternalFlashC.nc
+++ /dev/null
@@ -1,122 +0,0 @@
-// $Id$
-
-/*                                                                     tab:4
- *
- *
- * "Copyright (c) 2000-2004 The Regents of the University  of California.  
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose, without fee, and without written agreement is
- * hereby granted, provided that the above copyright notice, the following
- * two paragraphs and the author appear in all copies of this software.
- * 
- * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
- * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
- * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * 
- * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
- * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
- *
- */
-
-/**
- * InternalFlashC.nc - Internal flash implementation for telos msp
- * platform. On the msp, the flash must first be erased before a value
- * can be written. However, the msp can only erase the flash at a
- * segment granularity (128 bytes for the information section). This
- * module allows transparent read/write of individual bytes to the
- * information section by dynamically switching between the two
- * provided segments in the information section.
- *
- * Valid address range is 0x1000 - 0x107E (0x107F is used to store the
- * version number of the information segment).
- *
- * @author Jonathan Hui <jwhui@cs.berkeley.edu>
- */
-
-includes InternalFlash;
-
-module InternalFlashC {
-  provides interface InternalFlash;
-}
-
-implementation {
-
-  enum {
-    IFLASH_OFFSET     = 0x1000,
-    IFLASH_SIZE       = 128,
-    IFLASH_SEG0_VNUM_ADDR = 0x107f,
-    IFLASH_SEG1_VNUM_ADDR = 0x10ff,
-    IFLASH_INVALID_VNUM = -1,
-  };
-
-  uint8_t chooseSegment() {
-    int8_t vnum0 = *(int8_t*)IFLASH_SEG0_VNUM_ADDR;
-    int8_t vnum1 = *(int8_t*)IFLASH_SEG1_VNUM_ADDR;
-    if (vnum0 == IFLASH_INVALID_VNUM)
-      return 1;
-    else if (vnum1 == IFLASH_INVALID_VNUM)
-      return 0;
-    return ( (int8_t)(vnum0 - vnum1) < 0 );
-  }
-
-  command error_t InternalFlash.write(void* addr, void* buf, uint16_t size) {
-
-    volatile int8_t *newPtr;
-    int8_t *oldPtr;
-    int8_t *bufPtr = (int8_t*)buf;
-    int8_t version;
-    uint16_t i;
-
-    addr += IFLASH_OFFSET;
-    newPtr = oldPtr = (int8_t*)IFLASH_OFFSET;
-    if (chooseSegment()) {
-      oldPtr += IFLASH_SIZE;
-    }
-    else {
-      addr += IFLASH_SIZE;
-      newPtr += IFLASH_SIZE;
-    }
-
-    FCTL2 = FWKEY + FSSEL1 + FN2;
-    FCTL3 = FWKEY;
-    FCTL1 = FWKEY + ERASE;
-    *newPtr = 0;
-    FCTL1 = FWKEY + WRT;
-    
-    for ( i = 0; i < IFLASH_SIZE-1; i++, newPtr++, oldPtr++ ) {
-      if ((uint16_t)newPtr < (uint16_t)addr || (uint16_t)addr+size <= (uint16_t)newPtr)
-       *newPtr = *oldPtr;
-      else
-       *newPtr = *bufPtr++;
-    }
-    version = *oldPtr + 1;
-    if (version == IFLASH_INVALID_VNUM)
-      version++;
-    *newPtr = version;
-    
-    FCTL1 = FWKEY;
-    FCTL3 = FWKEY + LOCK;
-
-    return SUCCESS;
-
-  }
-
-  command error_t InternalFlash.read(void* addr, void* buf, uint16_t size) {
-
-    addr += IFLASH_OFFSET;
-    if (chooseSegment())
-      addr += IFLASH_SIZE;
-
-    memcpy(buf, addr, size);
-
-    return SUCCESS;
-
-  }
-
-}