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 /* Trivial Flash Programmer                                  */
 
 /* Author: Till Straumann <strauman@slac.stanford.edu>, 2006 */
 
 /* To keep things simple, this driver makes a few assumptions about the
  * hardware:
  *
  * - no CFI
  * - devices operate with 16-bit data width
  * - two devices are used in parallel (stride 4) to
  *   provide 32-bit data. I.e., the devices are
  *   organized like this:
  *   unsigned short flash[FLASH_SIZE][2];
  * - no endianness issues (i.e., flash endianness ==  CPU endianness)
  * - fixed block size
  * - fixed buffer size
  * - all devices in a bank are identical
  * - NOT THREAD SAFE; no locking scheme is implemented.
  * - cannot copy within same flash bank.
  * - timeout uses polling/busy-wait.
  *
  * NOTE: some attempts have been made to remove the restrictions
  * on stride and 16-bit width with the goal to support widths 1/2 (bytes)
  * and strides 1/2/4 and all (legal) combinations thereof.
  * However, the intel chip driver only implements stride 4 / width 2
  * and other combinations are untested.
  */
 
 /*
  * Authorship
  * ----------
  * This software was created by
  *     Till Straumann <strauman@slac.stanford.edu>, 2005-2007,
  *     Stanford Linear Accelerator Center, Stanford University.
  *
  * Acknowledgement of sponsorship
  * ------------------------------
  * The software was produced by
  *     the Stanford Linear Accelerator Center, Stanford University,
  *     under Contract DE-AC03-76SFO0515 with the Department of Energy.
  *
  * Government disclaimer of liability
  * ----------------------------------
  * Neither the United States nor the United States Department of Energy,
  * nor any of their employees, makes any warranty, express or implied, or
  * assumes any legal liability or responsibility for the accuracy,
  * completeness, or usefulness of any data, apparatus, product, or process
  * disclosed, or represents that its use would not infringe privately owned
  * rights.
  *
  * Stanford disclaimer of liability
  * --------------------------------
  * Stanford University makes no representations or warranties, express or
  * implied, nor assumes any liability for the use of this software.
  *
  * Stanford disclaimer of copyright
  * --------------------------------
  * Stanford University, owner of the copyright, hereby disclaims its
  * copyright and all other rights in this software.  Hence, anyone may
  * freely use it for any purpose without restriction.
  *
  * Maintenance of notices
  * ----------------------
  * In the interest of clarity regarding the origin and status of this
  * SLAC software, this and all the preceding Stanford University notices
  * are to remain affixed to any copy or derivative of this software made
  * or distributed by the recipient and are to be affixed to any copy of
  * software made or distributed by the recipient that contains a copy or
  * derivative of this software.
  *
  * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
  */
 #ifndef TESTING
 #include <rtems.h>
 #include <bsp/flashPgm.h>
 #include <bsp/flashPgmPvt.h>
 #else
 #include "flashPgm.h"
 #include "flashPgmPvt.h"
 #endif
 
 #include <unistd.h>
 #include <stdio.h>
 #include <inttypes.h>
 #include <ctype.h>
 #include <fcntl.h>
 #include <stdlib.h>
 
 #define  DEBUG      0
 #undef   DEBUG
 
 #ifdef   DEBUG
 #define  STATIC
 #else
 #define  STATIC             static
 #endif
 
 /* Forward decls. */
 
 STATIC uint32_t
 BSP_flashProbeSize(struct bankdesc *b);
 
 STATIC struct bankdesc *
 bankValidate(int bank, int quiet);
 
 static struct bankdesc *
 argcheck(int bank, uint32_t offset, const char *src, uint32_t size);
 
 /* Type definitions */
 
 union bconv {
     uint32_t u;
     uint16_t s[2];
     char     c[4];
 };
 
 /* Little helpers... */
 
 /* Read parallel devices */
 static void
 rd_par(struct bankdesc *b, union bconv *pv, uint32_t a)
 {
     if ( 4 == FLASH_STRIDE(b) ) {
         pv->u    = *(_u32_a_t*)a;
     } else if ( 2 == FLASH_STRIDE(b) ) {
         pv->s[0] = *(_u16_a_t*)a;
     } else {
         pv->c[0] = *(_u8_a_t*)a;
     }
 }
 
 /* 'flush' input buffer and get an upper-case char from stdin */
 STATIC int
 getUc(void)
 {
     fseek(stdin, 0, SEEK_END);
     return toupper(getchar());
 }
 
 /* Advance rotating progress indicator on stdout.
  * The idea is that the caller updates a state variable
  * using 'flip':
  *
  * unsigned f = 0;
  *
  *    // advance indicator
  *    f = flip(f);
  *
  *    ...
  *
  *    // erase indicator
  *    wipe(f);
  */
 static unsigned flip(unsigned x)
 {
 static char bar[]= { '/', '-', '\\', '|' };
     putchar('\b');
     putchar(bar[ x & 3]);
     fflush(stdout);
     return x+1;
 }
 
 /* If f!=0 then erase one char on stdout.
  * ( If 'flip' was never called then f should still
  * be zero and no action is taken).
  */
 static void wipe(unsigned f)
 {
     if ( f ) {
         putchar('\b');
         putchar(' ');
         putchar('\b');
         fflush(stdout);
     }
 }
 
 /* lookup vendor ID in table of known vendors using ops
  * associated with the vendor.
  */
 STATIC struct vendesc *
 knownVendor(struct bankdesc *b, uint32_t addr, uint32_t *pd, unsigned quiet)
 {
 uint32_t        v;
 struct vendesc *rval;
 
     for ( rval=b->knownVendors; rval->name; rval++ ) {
 
         if ( rval->ops->get_id(b, addr, &v, pd) ) {
             if ( quiet < 2 )
                 fprintf(stderr,"Unable to read vendor/device info at 0x%08"PRIx32"\n", addr);
             return 0;
         }
 
         if ( rval->id == v ) {
             return rval;
         }
     }
     if ( quiet < 2 )
         fprintf(stderr,"Unknown vendor id (0x%04"PRIx32") at 0x%08"PRIx32"\n",v, addr);
     return 0;
 }
 
 /* lookup device ID in table of known devices */
 STATIC struct devdesc *
 knownDevice(struct vendesc *v, uint32_t d)
 {
 struct devdesc *rval;
     for ( rval=v->known_devs; rval->name; rval++ ) {
         if ( rval->id == d ) {
             return rval;
         }
     }
     return 0;
 }
 
 /* Write 'n_words' (32-bit) from 'src' to 'addr'ess on flash.
  * (src is a char* to emphasize that no src-alignment is required)
  *
  * RETURNS: 0 on success, (destination) address of failure on error.
  *
  *   NOTES: - device switched back to array mode on exit.
  *          - 'addr' must be 32-bit aligned.
  */
 
 STATIC uint32_t
 BSP_flashWriteDataRaw(struct bankdesc *b, uint32_t addr, const char *src, uint32_t n_words, int quiet)
 {
 uint32_t   sta;
 uint32_t   N;
 uint32_t   nxt, a, i, bufsz;
 uint32_t   then, now;
 unsigned   f;
 const char *s;
 
 #ifdef DEBUG
     printf("\nflashWriteDataRaw(0x%08"PRIx32", %p, 0x%"PRIx32")\n", addr, src, n_words);
 #endif
 
     if ( 0 == n_words ) {
         return 0;
     }
 
     if ( !b ) {
         fprintf(stderr,"Missing bank descriptor argument\n");
         return -1;
     }
     if ( !b->dd ) {
         fprintf(stderr,"Bank descriptor not initialized\n");
         return -1;
     }
 
     if ( addr & (FLASH_STRIDE(b)-1) ) {
         fprintf(stderr,"Misaligned address (not on word boundary) 0x%08"PRIx32"\n", addr);
         return -1;
     }
 
     if ( (sta = b->ops->check_ready(b, addr)) ) {
         /* Error msgs have already been printed */
         return addr;
     }
 
     bufsz = FLASH_NDEVS(b) * b->dd->bufsz;
 
     then = BSP_flashBspOps.read_us_timer();
 
     for ( f = 0, a = addr, s=src, i = n_words; i ; s+=N ) {
         /* start of next buffer */
         nxt = (a + bufsz) & ~(bufsz-1);
 
         /* number of bytes */
         N = (nxt - a);
 
         if ( N > i * FLASH_STRIDE(b) )
             N = i * FLASH_STRIDE(b);
 
         i -= N/FLASH_STRIDE(b);
 
         if ( (sta = b->ops->write_line(b, a, s, N)) )
             goto bail;
 
         if ( ! quiet && (now = BSP_flashBspOps.read_us_timer()) - then > 500000 ) {
             f = flip(f);
             then = now;
         }
 
         a = nxt;
     }
 
     sta = 0;
 
     /* verify */
     for ( i=0, a=addr; i < n_words * FLASH_STRIDE(b); i++, a++ ) {
         if ( *(char*)a != src[i] ) {
             sta = -2;
             goto bail;
         }
     }
 
 bail:
     if ( ! quiet ) {
         wipe(f);
     }
     if ( sta ) {
         switch ( sta ) {
             default:
                 fprintf(stderr,"Error (flashWriteDataRaw): write error\n");
                 b->ops->print_stat(b, sta,0);
             break;
 
             case -1:
                 fprintf(stderr,"Error (flashWriteDataRaw): Timeout\n");
             break;
 
             case -2:
                 fprintf(stderr,"Error (flashWriteDataRaw): write verification failed at 0x%08"PRIx32"\n", a);
             break;
         }
         b->ops->array_mode(b, a);
     } else {
         /* no errors */
         a = 0;
     }
     return a;
 }
 
 
 /* Query device for basic information verifying that we talk
  * to a 'known'/'supported' device.
  *
  * This is not really clean since (until we implement CFI)
  * we already need to know what kind of device it is to
  * be able to read its ID...
  *
  *   NOTES: - device switched back to array mode on exit.
  *          - 'addr' must be 32-bit aligned.
  */
 
 STATIC struct devdesc *
 BSP_flashCheckId(struct bankdesc *b, uint32_t addr, unsigned quiet)
 {
 uint8_t  x;
 uint32_t d;
 struct vendesc  *vd;
 struct devdesc  *dd;
 
     /* check if it's flash at all: */
     x = *(A8)addr;
     *(A8)addr = ~x;
     if ( x != *(A8)addr ) {
         /* restore */
         *(A8)addr = x;
         if ( quiet < 3 )
             fprintf(stderr,"Addr 0x%08"PRIx32" seems to be RAM!\n", addr);
         return 0;
     }
 
     if ( !(vd = knownVendor(b, addr, &d, quiet)) ) {
         return 0;
     }
 
     /* Use the vendor ops for this bank */
     b->ops    = vd->ops;
 
     if ( !quiet )
         printf("Flash device, vendor: %s", vd->name);
 
     if ( !(dd = knownDevice(vd, d)) ) {
         if ( !quiet )
             printf("\n");
         if ( quiet < 2 )
             fprintf(stderr,"Unknown device id (0x%04"PRIx32") at 0x%08"PRIx32"\n",d, addr);
         return 0;
     }
 
     /* logical sector size is device sector size
      * multiplied by # of devices in parallel
      */
     b->fblksz = dd->fblksz * FLASH_NDEVS(b);
 
     if ( !quiet )
         printf(", device: %s -- size 0x%08"PRIx32" bytes\n", dd->name, dd->size);
     return dd;
 }
 
 /* We don't have device info yet so just
  * use 64k alignment
  */
 #define SCAN_BACK_OFFSET    0x10000
 
 /* Scan address range for flash devices and compute total size
  * of bank.
  *
  * RETURNS: size in bytes.
  */
 STATIC uint32_t
 BSP_flashProbeSize(struct bankdesc *b)
 {
 int             max = b->max_size;
 uint32_t        rval;
 struct devdesc  *dd;
 unsigned        q;
     if ( max > 0 ) {
         for ( rval = 0, q=1; rval < max && (dd = BSP_flashCheckId(b, b->start + rval, q)); q=3 ) {
             rval += dd->size * FLASH_NDEVS(b);
         }
     } else {
         /* bank is populated from the top; scan backwards */
         max = -max;
         for ( rval = 0, q=1; rval < max && (dd = BSP_flashCheckId(b, b->start + max - SCAN_BACK_OFFSET - rval, q)); q=3 ) {
             rval += dd->size * FLASH_NDEVS(b);
         }
         b->start += max - rval;
     }
     return rval;
 }
 
 uint32_t
 BSP_flashStart(int bank)
 {
 struct bankdesc *b;
     if ( ! ( b = argcheck(bank, 0, 0, 0) ) )
         return -1;
     return b->start;
 }
 
 uint32_t
 BSP_flashSize(int bank)
 {
 struct bankdesc *b;
     if ( ! ( b = argcheck(bank, 0, 0, 0) ) )
         return -1;
     return b->size;
 }
 
 uint32_t
 BSP_flashBlockSize(int bank)
 {
 struct bankdesc *b;
     if ( ! ( b = argcheck(bank, 0, 0, 0) ) )
         return -1;
     return b->fblksz;
 }
 
 
 #ifndef TESTING
 
 /* Obtain bank description making sure it is initialized and not write protected */
 STATIC struct bankdesc *
 bankValidate(int bank, int quiet)
 {
 struct bankdesc *b = BSP_flashBspOps.bankcheck(bank, quiet);
 
     /* If flash is write-protected then we can't even talk to it... */
     if ( BSP_flashBspOps.flash_wp(bank, -1) ) {
         fprintf(stderr,"Flash bank #%i is write-protected; use 'BSP_flashWriteEnable(int bank)' and/or jumper\n", bank);
         return 0;
     }
 
     if ( !b->size && !(b->size = BSP_flashProbeSize(b)) ) {
         fprintf(stderr,"Configuration Error - unable to determine flash size\n");
         return 0;
     }
 
     if ( !b->dd && !(b->dd = BSP_flashCheckId(b, b->start,1)) ) {
         fprintf(stderr,"Error: unable to detect flash device in bank #%i\n", bank);
         return 0;
     }
     return b;
 }
 
 /* Validate arguments and write-protection status of 'bank'.
  *
  *    'bank': 0..max bank supported by board.
  *  'offset': 0..bank size - 1
  *     'src': src .. src + size - 1 must not overlap bank; 'src' may be NULL
  *            (check is skipped in this case)
  *
  *      RETURNS: pointer to bank description on success, NULL on error (invalid args;
  *               error message is printed to stderr).
  *
  * SIDE EFFECTS: probes for bank size and stores result in bank description table.
  */
 
 static struct bankdesc *
 argcheck(int bank, uint32_t offset, const char *src, uint32_t size)
 {
 struct bankdesc *b;
 
     if ( !(b=bankValidate(bank, 0)) ) {
         return 0;
     }
 
     if ( offset + size > b->size ) {
         fprintf(stderr,"Error: requested size exceeds available flash (0x%08"PRIx32" bytes)\n", b->size);
         return 0;
     }
 
     if ( src && ( src + size > (char*)b->start && src < (char*)(b->start + b->size) ) ) {
         fprintf(stderr,"Error: cannot copy data within flash bank\n");
         return 0;
     }
 
 
     return b;
 }
 
 /* Calculate region that needs to be erased from 'offset' and 'n_bytes'
  * handling alignment and checking for blank areas that need not be
  * erased.
  * Ask for user confirmation and erase calculated region.
  *
  * RETURNS: 0 on success, -1 or destination address on error.
  *
  *   NOTES: - device switched back to array mode on exit.
  *          - prints progress/messages.
  */
 STATIC int
 regionCheckAndErase(int bank, uint32_t offset, const char *src, uint32_t n_bytes, int quiet)
 {
 struct bankdesc *b;
 uint32_t         i;
 char            *p;
 uint32_t        a,e;
 
     if ( ! (b = argcheck(bank, offset, src, n_bytes)) )
         return -1;
 
     a = offset & ~(b->fblksz - 1);
     e = (offset + n_bytes +  b->fblksz - 1) & ~ (b->fblksz - 1);
 
     /* If 'offset' is not block-aligned then rest of the block must
      * be free.
      */
     if ( a != offset ) {
         a += b->fblksz;
         i  = ( a > offset + n_bytes ) ? offset + n_bytes : a;
         for ( p = (char*)(b->start + offset); p < (char*)(b->start + i); p++ ) {
             if ( (char)0xff != *p ) {
                 if ( ! quiet ) {
                     fprintf(stderr,"Starting offset not block-aligned and destination area not empty.\n");
                     fprintf(stderr,"I'll need to erase data below destination start\n");
                 }
                 a -= b->fblksz;
                 break;
             }
         }
     }
     if ( e != offset + n_bytes ) {
         e -= b->fblksz;
         i  = ( e < offset ) ? offset : e;
         for ( p = (char*)(b->start + i); p < (char*)(b->start + offset + n_bytes); p++ ) {
             if ( (char)0xff != *p ) {
                 if ( ! quiet ) {
                     fprintf(stderr,"Ending offset not block-aligned and destination area not empty.\n");
                     fprintf(stderr,"I'll need to erase data beyond destination end\n");
                 }
                 e += b->fblksz;
                 break;
             }
         }
     }
     if ( ! quiet ) {
         if ( e > a )
             printf("ERASING 0x%08"PRIx32" .. 0x%08"PRIx32"\n", (b->start+a), (b->start + e - 1));
         printf("WRITING 0x%08"PRIx32" .. 0x%08"PRIx32"\n", (b->start+offset), (b->start + offset + n_bytes - 1));
         printf("OK to proceed y/[n]?"); fflush(stdout);
         if ( 'Y' != getUc() ) {
             printf("ABORTED\n");
             return -1;
         }
     }
     if ( e > a ) {
         if ( quiet < 2 ) {
             printf("ERASING  "); fflush(stdout);
         }
 
         if ( (i = BSP_flashErase(bank, a, e-a, quiet ? quiet : 1)) )
             return i;
 
         if ( quiet < 2 ) {
             printf("DONE\n");
         }
     }
 
     return 0;
 }
 
 /* Write to a flash region ('offset'..'offset'+'n_bytes'-1 on 'bank').
  *
  * RETURNS: 0 on success, -1 or destination address on error.
  *
  *   NOTES: - device switched back to array mode on exit.
  *          - no erase operation is performed.
  *          - written data is verified against source.
  */
 
 STATIC int
 BSP_flashWriteRegion(int bank, uint32_t offset, const char *src, uint32_t n_bytes, int quiet)
 {
 struct bankdesc *b = BSP_flashBspOps.bankcheck(bank, 0);    /* caller did bankValidate() */
 uint32_t     ab = offset & ~(b->fblksz - 1);
 uint32_t     eb = (offset + n_bytes + b->fblksz - 1) & ~(b->fblksz - 1);
 uint32_t     o,i,a,e;
 int          err;
 const char   *p;
 union bconv  buf;
 
     /* unlock */
     for ( i=ab; i<eb; i+=b->fblksz ) {
         b->ops->unlock_block(b, b->start + i );
     }
 
     err = 0;
     p = src;
 
     /* handle misaligned offset merging old contents */
     o = b->start + offset;
     a = o & ~(FLASH_STRIDE(b)-1);
     e = (o + n_bytes) & ~(FLASH_STRIDE(b)-1);
 
     if ( o > a ) {
         i = o - a;
 
         rd_par(b, &buf, a);
 
         while ( i < FLASH_STRIDE(b) && p < src + n_bytes ) {
             buf.c[i++] = *p++;
         }
         if ( (err = BSP_flashWriteDataRaw(b, a, buf.c, 1, quiet)) )
             goto bail;
         a += FLASH_STRIDE(b);
     }
 
 
     /* caution if misaligned data covering only one or two words */
 
     if ( e > a ) {
         i = (e-a);
         if ( (err = BSP_flashWriteDataRaw(b, a, p, i/FLASH_STRIDE(b), quiet)) )
             goto bail;
         p += i;
     }
 
     /* handle misaligned end */
     if ( o + n_bytes > e)  {
         rd_par(b, &buf, e);
         for ( i=0; p < src + n_bytes; ) {
             buf.c[i++] = *p++;
         }
         if ( (err = BSP_flashWriteDataRaw(b, e, buf.c, 1, quiet)) )
             goto bail;
     }
 
 bail:
     /* lock area */
     for ( i=ab; i<eb; i+=b->fblksz ) {
         b->ops->lock_block(b, b->start + i );
     }
 
     /* final verification */
     if ( !err ) {
         for ( i=0; i<n_bytes; i++ ) {
             if ( ((char*)(b->start + offset))[i] != src[i] ) {
                 fprintf(stderr,"Final verification failed at offset 0x%08"PRIx32"\n", (offset + i));
                 return b->start + offset + i;
             }
         }
     }
 
     return err;
 }
 
 int
 BSP_flashErase(int bank, uint32_t offset, uint32_t size, int quiet)
 {
 struct bankdesc *b;
 uint32_t         a,i;
 int              f;
 
     if ( ! (b = argcheck(bank, offset, 0, size)) )
         return -1;
 
     if ( offset & (b->fblksz - 1) ) {
         fprintf(stderr,"Offset misaligned (needs to be multiple of 0x%08"PRIx32")\n", b->fblksz);
         return -1;
     }
     if ( size & (b->fblksz - 1) ) {
         fprintf(stderr,"Size misaligned (needs to be multiple of 0x%08"PRIx32")\n", b->fblksz);
         return -1;
     }
 
     a = b->start + offset;
 
     if ( !quiet ) {
         printf("ERASING Flash (Bank #%i)\n    from 0x%08"PRIx32" .. 0x%08"PRIx32"\nproceed y/[n]?",
             bank, a, (a+size-1));
         fflush(stdout);
         if ( 'Y' != getUc() ) {
             printf("ABORTED\n");
             return -1;
         }
     }
     f = 0;
     while ( size ) {
         /* work to do ? */
         for ( i = 0; i<b->fblksz; i++ ) {
             if ( (char)0xff != ((char*)a)[i] ) {
                 b->ops->unlock_block(b, a);
                 i = b->ops->erase_block(b, a);
                 b->ops->lock_block(b, a);
                 if (i) {
                     wipe(f);
                     return a;
                 }
                 break;
             }
         }
 
         if ( quiet < 2 ) {
             f = flip(f);
         }
 
         a    += b->fblksz;
         size -= b->fblksz;
     }
     b->ops->array_mode(b, a);
     if ( quiet < 2 ) {
         wipe(f);
     }
     return 0;
 }
 
 int
 BSP_flashWrite(int bank, uint32_t offset, const char *src, uint32_t n_bytes, int quiet)
 {
 int      rval;
 
     if ( !src ) {
         fprintf(stderr,"Error: Data source pointer is NULL\n");
         return -1;
     }
 
     if ( (rval = regionCheckAndErase(bank, offset, src, n_bytes, quiet)) )
         return rval;
 
     if ( ! quiet ) {
         printf("WRITING  "); fflush(stdout);
     }
 
     rval = BSP_flashWriteRegion(bank, offset, src, n_bytes, quiet);
 
     if ( !quiet && !rval ) {
         printf("DONE");
     }
     if ( !quiet )
         printf("\n");
     return rval;
 }
 
 static int
 bfill(int fd, char *buf, int size)
 {
 int got, avail;
     for (avail = size; (got = read(fd, buf, avail)) > 0; avail-=got ) {
         buf  += got;
     }
     return size - avail;
 }
 
 int
 BSP_flashWriteFile(int bank, uint32_t offset, const char *fname, int quiet)
 {
 int             fd   = -1;
 struct stat     sb;
 uint32_t        sz;
 int             rval = -1;
 char           *buf  = 0;
 uint32_t        got;
 struct bankdesc *b;
 unsigned        f    = 0;
 
     if ( ! (b = bankValidate(bank, 0)) )
         return -1;
 
     for ( sz = 0; -1 == fd ;  ) {
         if ( (fd = open(fname,O_RDONLY)) < 0 ) {
             perror("Opening file");
             return -1;
         }
 
         if ( sz )
             break;
 
         if ( fstat(fd, &sb) ) {
             fprintf(stderr,"Warning: fstat doesn't work; need to slurp file to determine size; please be patient.\n");
             FILE *f;
             close(fd); fd = -1;
             f = fopen(fname,"r");
             if ( !f ) {
                 perror("fdopen");
                 return -1;
             }
             while ( EOF != fgetc(f) )
                 sz++;
             fclose(f);
             /* reopen */
         } else {
             sz = sb.st_size;
         }
         if ( 0 == sz ) {
             fprintf(stderr,"Error: zero file size (?)\n");
             goto bail;
         }
     }
 
     if ( !(buf = malloc(b->fblksz)) ) {
         perror("buffer allocation");
         goto bail;
     }
 
     /* See if we can erase the entire region */
     if ( (rval = regionCheckAndErase(bank, offset, buf, sz, quiet)) )
         goto bail;
 
     /* Proceed copying chunks */
     if ( quiet < 2 ) {
         printf("WRITING  "); fflush(stdout);
     }
 
     while ( (got = bfill(fd, buf, b->fblksz)) > 0 && sz ) {
         if ( (rval = BSP_flashWriteRegion(bank, offset, buf, got, 1)) ) {
             wipe(f);
             goto bail;
         }
         offset += got;
         sz     -= got;
         if ( quiet < 2 ) {
             f = flip(f);
         }
     }
     if ( got < 0 ) {
         perror("reading file");
         rval = offset;
         goto bail;
     }
 
     if ( quiet < 2 ) {
         wipe(f);
         printf("DONE");
     }
 bail:
     if ( quiet < 2 ) {
         printf("\n");
     }
     if ( fd > -1 )
         close(fd);
     free(buf);
     return rval;
 }
 
 int
 BSP_flashWriteEnable(int bank)
 {
     return BSP_flashBspOps.flash_wp(bank,0);
 }
 
 int
 BSP_flashWriteDisable(int bank)
 {
     return BSP_flashBspOps.flash_wp(bank,1);
 }
 
 int
 BSP_flashDumpInfo(FILE *f)
 {
 struct bankdesc *b;
 int             bank;
 
     if ( !f )
         f = stdout;
 
     /* use 'bankValidate()' with 'quiet' flag to suppress error message when
      * we reach the end of the table.
      */
     for ( bank = 0; BSP_flashBspOps.bankcheck(bank,1); bank++ ) {
         if ( (b=argcheck(bank,0,0,0)) ) {
             fprintf(f,"Flash Bank #%i; 0x%08"PRIx32" .. 0x%08"PRIx32" (%"PRId32" bytes)\n",
                 bank, b->start, (b->start + b->size - 1), b->size);
             fprintf(f,"%i * %i-bit devices in parallel; block size 0x%"PRIx32"\n", FLASH_NDEVS(b), FLASH_WIDTH(b)*8, b->fblksz);
             BSP_flashCheckId(b, b->start, 0);
         }
     }
 
     return 0;
 }
 
 #else
 
 int
 main(int argc, char **argv)
 {
 uint32_t fla[1000];
 uint32_t qqq[1000];
 int i;
     for ( i=0; i<sizeof(qqq)/sizeof(qqq[0]); i++ )
         qqq[i] = 0xdada<<16 | i;
     BSP_flashWriteDataRaw(0, (uint32_t)fla, (char*)qqq, 32, 0);
 }
 #endif

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