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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <boot/boot.h>
     30 #include <boot/flash.h>
     31 
     32 #define MAX_PTN 16
     33 
     34 static ptentry ptable[MAX_PTN];
     35 static unsigned pcount = 0;
     36 
     37 void flash_add_ptn(ptentry *ptn)
     38 {
     39     if(pcount < MAX_PTN){
     40         memcpy(ptable + pcount, ptn, sizeof(*ptn));
     41         pcount++;
     42     }
     43 }
     44 
     45 void flash_dump_ptn(void)
     46 {
     47     unsigned n;
     48     for(n = 0; n < pcount; n++) {
     49         ptentry *ptn = ptable + n;
     50         dprintf("ptn %d name='%s' start=%d len=%d\n",
     51                 n, ptn->name, ptn->start, ptn->length);
     52     }
     53 }
     54 
     55 
     56 ptentry *flash_find_ptn(const char *name)
     57 {
     58     unsigned n;
     59     for(n = 0; n < pcount; n++) {
     60         if(!strcmp(ptable[n].name, name)) {
     61             return ptable + n;
     62         }
     63     }
     64     return 0;
     65 }
     66 
     67 ptentry *flash_get_ptn(unsigned n)
     68 {
     69     if(n < pcount) {
     70         return ptable + n;
     71     } else {
     72         return 0;
     73     }
     74 }
     75 
     76 unsigned flash_get_ptn_count(void)
     77 {
     78     return pcount;
     79 }
     80