]> oss.titaniummirror.com Git - tinyos-2.x.git/blobdiff - tos/lib/tosboot/at45db/ExtFlashC.nc
Changes so this checkout exactly matches CVS at -r release_tinyos_2_0_2_2.
[tinyos-2.x.git] / tos / lib / tosboot / at45db / ExtFlashC.nc
diff --git a/tos/lib/tosboot/at45db/ExtFlashC.nc b/tos/lib/tosboot/at45db/ExtFlashC.nc
deleted file mode 100644 (file)
index 1d5d3c8..0000000
+++ /dev/null
@@ -1,126 +0,0 @@
-// $Id$
-
-/*                                                                     tab:2
- *
- *
- * "Copyright (c) 2000-2005 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."
- *
- */
-
-/**
- * @author Jonathan Hui <jwhui@cs.berkeley.edu>
- */
-
-module ExtFlashC {
-  provides {
-    interface Init;
-    interface StdControl;
-    interface ExtFlash;
-  }
-}
-
-implementation {
-
-  uint32_t addr;
-
-  command error_t Init.init() {
-    TOSH_MAKE_FLASH_CS_OUTPUT();
-    TOSH_SET_FLASH_CS_PIN();
-    TOSH_MAKE_FLASH_CLK_OUTPUT();
-    TOSH_CLR_FLASH_CLK_PIN();
-    TOSH_MAKE_FLASH_OUT_OUTPUT();      
-    TOSH_SET_FLASH_OUT_PIN();
-    TOSH_MAKE_FLASH_IN_INPUT();
-    TOSH_CLR_FLASH_IN_PIN();
-    return SUCCESS; 
-  }
-
-  command error_t StdControl.start() { return SUCCESS; }
-  command error_t StdControl.stop() { return SUCCESS; }
-
-  uint8_t SPIByte(uint8_t out) {
-
-    uint8_t in = 0;
-    uint8_t i;
-
-    for ( i = 0; i < 8; i++, out <<= 1 ) {
-
-      // write bit
-      if (out & 0x80)
-       TOSH_SET_FLASH_OUT_PIN();
-      else
-       TOSH_CLR_FLASH_OUT_PIN();
-
-      // clock
-      TOSH_SET_FLASH_CLK_PIN();
-
-      // read bit
-      in <<= 1;
-      if (TOSH_READ_FLASH_IN_PIN())
-       in |= 1;
-
-      // clock
-      TOSH_CLR_FLASH_CLK_PIN();
-
-    }
-
-    return in;
-
-  }
-
-  command void ExtFlash.startRead(uint32_t newAddr) {
-
-    uint8_t  cmdBuf[4];
-    uint8_t  i;
-
-    addr = newAddr;
-
-    cmdBuf[0] = 0x68;
-    cmdBuf[1] = (addr >> 15) & 0xff;
-    cmdBuf[2] = (addr >> 7) & 0xfe;
-    cmdBuf[3] = addr & 0xff;
-    
-    TOSH_CLR_FLASH_CLK_PIN();
-    TOSH_CLR_FLASH_CS_PIN();
-    
-    for(i = 0; i < 4; i++)
-      SPIByte(cmdBuf[i]);
-    for(i = 0; i < 4; i++)
-      SPIByte(0x0);
-    
-    TOSH_SET_FLASH_CLK_PIN();
-    TOSH_CLR_FLASH_CLK_PIN();
-
-  }
-
-  command uint8_t ExtFlash.readByte() {
-    if (!(addr & 0xff)) {
-      call ExtFlash.stopRead();
-      call ExtFlash.startRead(addr);
-    }
-    addr++;
-    return SPIByte(0);
-  }
-
-  command void ExtFlash.stopRead() {
-    TOSH_SET_FLASH_CS_PIN();
-  }
-
-}