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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [redboot/] [v2_0/] [src/] [flash.c] - Blame information for rev 773

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//==========================================================================
2 
//
3 
//      flash.c
4 
//
5 
//      RedBoot - FLASH memory support
6 
//
7 
//==========================================================================
8 
//####ECOSGPLCOPYRIGHTBEGIN####
9 
// -------------------------------------------
10 
// This file is part of eCos, the Embedded Configurable Operating System.
11 
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
12 
//
13 
// eCos is free software; you can redistribute it and/or modify it under
14 
// the terms of the GNU General Public License as published by the Free
15 
// Software Foundation; either version 2 or (at your option) any later version.
16 
//
17 
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18 
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
20 
// for more details.
21 
//
22 
// You should have received a copy of the GNU General Public License along
23 
// with eCos; if not, write to the Free Software Foundation, Inc.,
24 
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25 
//
26 
// As a special exception, if other files instantiate templates or use macros
27 
// or inline functions from this file, or you compile this file and link it
28 
// with other works to produce a work based on this file, this file does not
29 
// by itself cause the resulting work to be covered by the GNU General Public
30 
// License. However the source code for this file must still be made available
31 
// in accordance with section (3) of the GNU General Public License.
32 
//
33 
// This exception does not invalidate any other reasons why a work based on
34 
// this file might be covered by the GNU General Public License.
35 
//
36 
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37 
// at http://sources.redhat.com/ecos/ecos-license/
38 
// -------------------------------------------
39 
//####ECOSGPLCOPYRIGHTEND####
40 
//==========================================================================
41 
//#####DESCRIPTIONBEGIN####
42 
//
43 
// Author(s):    gthomas
44 
// Contributors: gthomas, tkoeller
45 
// Date:         2000-07-28
46 
// Purpose:
47 
// Description:
48 
//
49 
// This code is part of RedBoot (tm).
50 
//
51 
//####DESCRIPTIONEND####
52 
//
53 
//==========================================================================
54 
 
55 
#include <redboot.h>
56 
#include <cyg/io/flash.h>
57 
#include <fis.h>
58 
#include <sib.h>
59 
 
60 
#ifdef CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
61 
// Note horrid intertwining of functions, to save precious FLASH
62 
#endif
63 
 
64 
// Round a quantity up
65 
#define _rup(n,s) ((((n)+(s-1))/s)*s)
66 
 
67 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
68 
#include <flash_config.h>
69 
 
70 
// Configuration data, saved in FLASH, used to set/update RedBoot
71 
// normal "configuration" data items.
72 
static struct _config {
73 
    unsigned long len;
74 
    unsigned long key1;
75 
    unsigned char config_data[MAX_CONFIG_DATA-(4*4)];
76 
    unsigned long key2;
77 
    unsigned long cksum;
78 
} *config, *backup_config;
79 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG_READONLY_FALLBACK
80 
static struct _config  *readonly_config;
81 
#endif
82 
#endif
83 
 
84 
#ifdef CYGOPT_REDBOOT_FIS
85 
// Image management functions
86 
local_cmd_entry("init",
87 
                "Initialize FLASH Image System [FIS]",
88 
                "[-f]",
89 
                fis_init,
90 
                FIS_cmds
91 
    );
92 
#ifdef CYGSEM_REDBOOT_FIS_CRC_CHECK
93 
# define FIS_LIST_OPTS "[-c] [-d]"
94 
#else
95 
# define FIS_LIST_OPTS "[-d]"
96 
#endif
97 
local_cmd_entry("list",
98 
                "Display contents of FLASH Image System [FIS]",
99 
                FIS_LIST_OPTS,
100 
                fis_list,
101 
                FIS_cmds
102 
    );
103 
local_cmd_entry("free",
104 
                "Display free [available] locations within FLASH Image System [FIS]",
105 
                "",
106 
                fis_free,
107 
                FIS_cmds
108 
    );
109 
local_cmd_entry("delete",
110 
                "Delete an image from FLASH Image System [FIS]",
111 
                "name",
112 
                fis_delete,
113 
                FIS_cmds
114 
    );
115 
 
116 
static char fis_load_usage[] =
117 
#ifdef CYGPKG_COMPRESS_ZLIB
118 
                      "[-d] "
119 
#endif
120 
                      "[-b <memory_load_address>] [-c] name";
121 
 
122 
local_cmd_entry("load",
123 
                "Load image from FLASH Image System [FIS] into RAM",
124 
                fis_load_usage,
125 
                fis_load,
126 
                FIS_cmds
127 
    );
128 
local_cmd_entry("create",
129 
                "Create an image",
130 
                "-b <mem_base> -l <image_length> [-s <data_length>]\n"
131 
                "      [-f <flash_addr>] [-e <entry_point>] [-r <ram_addr>] [-n] <name>",
132 
                fis_create,
133 
                FIS_cmds
134 
    );
135 
#endif
136 
 
137 
// Raw flash access functions
138 
local_cmd_entry("erase",
139 
                "Erase FLASH contents",
140 
                "-f <flash_addr> -l <length>",
141 
                fis_erase,
142 
                FIS_cmds
143 
    );
144 
#ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
145 
local_cmd_entry("lock",
146 
                "LOCK FLASH contents",
147 
                "[-f <flash_addr> -l <length>] [name]",
148 
                fis_lock,
149 
                FIS_cmds
150 
    );
151 
local_cmd_entry("unlock",
152 
                "UNLOCK FLASH contents",
153 
                "[-f <flash_addr> -l <length>] [name]",
154 
                fis_unlock,
155 
                FIS_cmds
156 
    );
157 
#endif
158 
local_cmd_entry("write",
159 
                "Write raw data directly to FLASH",
160 
                "-f <flash_addr> -b <mem_base> -l <image_length>",
161 
                fis_write,
162 
                FIS_cmds
163 
    );
164 
 
165 
// Define table boundaries
166 
CYG_HAL_TABLE_BEGIN( __FIS_cmds_TAB__, FIS_cmds);
167 
CYG_HAL_TABLE_END( __FIS_cmds_TAB_END__, FIS_cmds);
168 
 
169 
extern struct cmd __FIS_cmds_TAB__[], __FIS_cmds_TAB_END__;
170 
 
171 
// CLI function
172 
static cmd_fun do_fis;
173 
RedBoot_nested_cmd("fis",
174 
            "Manage FLASH images",
175 
            "{cmds}",
176 
            do_fis,
177 
            __FIS_cmds_TAB__, &__FIS_cmds_TAB_END__
178 
    );
179 
 
180 
// Local data used by these routines
181 
static void *flash_start, *flash_end;
182 
static int flash_block_size, flash_num_blocks;
183 
#ifdef CYGOPT_REDBOOT_FIS
184 
static void *fis_work_block;
185 
static void *fis_addr;
186 
static int fisdir_size;  // Size of FIS directory.
187 
#endif
188 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
189 
static void *cfg_base;   // Location in Flash of config data
190 
static int   cfg_size;   // Length of config data - rounded to Flash block size
191 
// Prototypes for local functions
192 
static unsigned char *flash_lookup_config(char *key);
193 
#endif
194 
 
195 
static void
196 
fis_usage(char *why)
197 
{
198 
    diag_printf("*** invalid 'fis' command: %s\n", why);
199 
    cmd_usage(__FIS_cmds_TAB__, &__FIS_cmds_TAB_END__, "fis ");
200 
}
201 
 
202 
static void
203 
_show_invalid_flash_address(CYG_ADDRESS flash_addr, int stat)
204 
{
205 
    diag_printf("Invalid FLASH address %p: %s\n", (void *)flash_addr, flash_errmsg(stat));
206 
    diag_printf("   valid range is %p-%p\n", (void *)flash_start, (void *)flash_end);
207 
}
208 
 
209 
#ifdef CYGOPT_REDBOOT_FIS
210 
struct fis_image_desc *
211 
fis_lookup(char *name, int *num)
212 
{
213 
    int i;
214 
    struct fis_image_desc *img;
215 
 
216 
    img = (struct fis_image_desc *)fis_work_block;
217 
    for (i = 0;  i < fisdir_size/sizeof(*img);  i++, img++) {
218 
        if ((img->name[0] != (unsigned char)0xFF) &&
219 
            (strcasecmp(name, img->name) == 0)) {
220 
            if (num) *num = i;
221 
            return img;
222 
        }
223 
    }
224 
    return (struct fis_image_desc *)0;
225 
}
226 
 
227 
static void
228 
fis_update_directory(void)
229 
{
230 
    int stat;
231 
    void *err_addr;
232 
 
233 
#ifdef CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
234 
    memcpy((char *)fis_work_block+fisdir_size, config, cfg_size);
235 
#endif
236 
#ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL
237 
    // Ensure [quietly] that the directory is unlocked before trying to update
238 
    flash_unlock((void *)fis_addr, flash_block_size, (void **)&err_addr);
239 
#endif
240 
    if ((stat = flash_erase(fis_addr, flash_block_size, (void **)&err_addr)) != 0) {
241 
        diag_printf("Error erasing FIS directory at %p: %s\n", err_addr, flash_errmsg(stat));
242 
    } else {
243 
        if ((stat = flash_program(fis_addr, fis_work_block, flash_block_size,
244 
                                  (void **)&err_addr)) != 0) {
245 
            diag_printf("Error writing FIS directory at %p: %s\n",
246 
                        err_addr, flash_errmsg(stat));
247 
        }
248 
    }
249 
#ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL
250 
    // Ensure [quietly] that the directory is locked after the update
251 
    flash_lock((void *)fis_addr, flash_block_size, (void **)&err_addr);
252 
#endif
253 
}
254 
 
255 
static void
256 
fis_init(int argc, char *argv[])
257 
{
258 
    int stat;
259 
    struct fis_image_desc *img;
260 
    void *err_addr;
261 
    bool full_init = false;
262 
    struct option_info opts[1];
263 
    CYG_ADDRESS redboot_flash_start;
264 
    unsigned long redboot_image_size;
265 
 
266 
    init_opts(&opts[0], 'f', false, OPTION_ARG_TYPE_FLG,
267 
              (void **)&full_init, (bool *)0, "full initialization, erases all of flash");
268 
    if (!scan_opts(argc, argv, 2, opts, 1, 0, 0, ""))
269 
    {
270 
        return;
271 
    }
272 
 
273 
    if (!verify_action("About to initialize [format] FLASH image system")) {
274 
        diag_printf("** Aborted\n");
275 
        return;
276 
    }
277 
    diag_printf("*** Initialize FLASH Image System\n");
278 
 
279 
#define MIN_REDBOOT_IMAGE_SIZE CYGBLD_REDBOOT_MIN_IMAGE_SIZE
280 
    redboot_image_size = flash_block_size > MIN_REDBOOT_IMAGE_SIZE ?
281 
                         flash_block_size : MIN_REDBOOT_IMAGE_SIZE;
282 
 
283 
    // Create a pseudo image for RedBoot
284 
    img = (struct fis_image_desc *)fis_work_block;
285 
    memset(img, 0xFF, fisdir_size);  // Start with erased data
286 
#ifdef CYGOPT_REDBOOT_FIS_RESERVED_BASE
287 
    memset(img, 0, sizeof(*img));
288 
    strcpy(img->name, "(reserved)");
289 
    img->flash_base = (CYG_ADDRESS)flash_start;
290 
    img->mem_base = (CYG_ADDRESS)flash_start;
291 
    img->size = CYGNUM_REDBOOT_FLASH_RESERVED_BASE;
292 
    img++;
293 
#endif
294 
    redboot_flash_start = (CYG_ADDRESS)flash_start + CYGBLD_REDBOOT_FLASH_BOOT_OFFSET;
295 
#ifdef CYGOPT_REDBOOT_FIS_REDBOOT
296 
    memset(img, 0, sizeof(*img));
297 
    strcpy(img->name, "RedBoot");
298 
    img->flash_base = redboot_flash_start;
299 
    img->mem_base = redboot_flash_start;
300 
    img->size = redboot_image_size;
301 
    img++;
302 
    redboot_flash_start += redboot_image_size;
303 
#endif
304 
#ifdef CYGOPT_REDBOOT_FIS_REDBOOT_POST
305 
#ifdef CYGNUM_REDBOOT_FIS_REDBOOT_POST_OFFSET
306 
    // Take care to place the POST entry at the right offset:
307 
    redboot_flash_start = (CYG_ADDRESS)flash_start + CYGNUM_REDBOOT_FIS_REDBOOT_POST_OFFSET;
308 
#endif
309 
    memset(img, 0, sizeof(*img));
310 
    strcpy(img->name, "RedBoot[post]");
311 
    img->flash_base = redboot_flash_start;
312 
    img->mem_base = redboot_flash_start;
313 
    img->size = redboot_image_size;
314 
    img++;
315 
    redboot_flash_start += redboot_image_size;
316 
#endif
317 
#ifdef CYGOPT_REDBOOT_FIS_REDBOOT_BACKUP
318 
    // And a backup image
319 
    memset(img, 0, sizeof(*img));
320 
    strcpy(img->name, "RedBoot[backup]");
321 
    img->flash_base = redboot_flash_start;
322 
    img->mem_base = redboot_flash_start;
323 
    img->size = redboot_image_size;
324 
    img++;
325 
    redboot_flash_start += redboot_image_size;
326 
#endif
327 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
328 
    // And a descriptor for the configuration data
329 
    memset(img, 0, sizeof(*img));
330 
    strcpy(img->name, "RedBoot config");
331 
    img->flash_base = (CYG_ADDRESS)cfg_base;
332 
    img->mem_base = (CYG_ADDRESS)cfg_base;
333 
    img->size = cfg_size;
334 
    img++;
335 
#endif
336 
    // And a descriptor for the descriptor table itself
337 
    memset(img, 0, sizeof(*img));
338 
    strcpy(img->name, "FIS directory");
339 
    img->flash_base = (CYG_ADDRESS)fis_addr;
340 
    img->mem_base = (CYG_ADDRESS)fis_addr;
341 
    img->size = fisdir_size;
342 
    img++;
343 
 
344 
#ifdef CYGOPT_REDBOOT_FIS_DIRECTORY_ARM_SIB_ID
345 
    // FIS gets the size of a full block - note, this should be changed
346 
    // if support is added for multi-block FIS structures.
347 
    img = (struct fis_image_desc *)((CYG_ADDRESS)fis_work_block + fisdir_size);
348 
    // Add a footer so the FIS will be recognized by the ARM Boot
349 
    // Monitor as a reserved area.
350 
    {
351 
        tFooter* footer_p = (tFooter*)((CYG_ADDRESS)img - sizeof(tFooter));
352 
        cyg_uint32 check = 0;
353 
        cyg_uint32 *check_ptr = (cyg_uint32 *)footer_p;
354 
        cyg_int32 count = (sizeof(tFooter) - 4) >> 2;
355 
 
356 
        // Prepare footer. Try to protect all but the reserved space
357 
        // and the first RedBoot image (which is expected to be
358 
        // bootable), but fall back to just protecting the FIS if it's
359 
        // not at the default position in the flash.
360 
#if defined(CYGOPT_REDBOOT_FIS_RESERVED_BASE) && (-1 == CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK)
361 
        footer_p->blockBase = (char*)_ADDR_REDBOOT_TO_ARM(flash_start);
362 
        footer_p->blockBase += CYGNUM_REDBOOT_FLASH_RESERVED_BASE + redboot_image_size;
363 
#else
364 
        footer_p->blockBase = (char*)_ADDR_REDBOOT_TO_ARM(fis_work_block);
365 
#endif
366 
        footer_p->infoBase = NULL;
367 
        footer_p->signature = FLASH_FOOTER_SIGNATURE;
368 
        footer_p->type = TYPE_REDHAT_REDBOOT;
369 
 
370 
        // and compute its checksum
371 
        for ( ; count > 0; count--) {
372 
            if (*check_ptr > ~check)
373 
                check++;
374 
            check += *check_ptr++;
375 
        }
376 
        footer_p->checksum = ~check;
377 
    }
378 
#endif
379 
 
380 
    // Do this after creating the initialized table because that inherently
381 
    // calculates where the high water mark of default RedBoot images is.
382 
 
383 
    if (full_init) {
384 
        unsigned long erase_size;
385 
        CYG_ADDRESS erase_start;
386 
        // Erase everything except default RedBoot images, fis block,
387 
        // and config block.
388 
        // First deal with the possible first part, before RedBoot images:
389 
#if (CYGBLD_REDBOOT_FLASH_BOOT_OFFSET > CYGNUM_REDBOOT_FLASH_RESERVED_BASE)
390 
        erase_start = (CYG_ADDRESS)flash_start + CYGNUM_REDBOOT_FLASH_RESERVED_BASE;
391 
        erase_size =  (CYG_ADDRESS)flash_start + CYGBLD_REDBOOT_FLASH_BOOT_OFFSET;
392 
        if ( erase_size > erase_start ) {
393 
            erase_size -= erase_start;
394 
            if ((stat = flash_erase((void *)erase_start, erase_size,
395 
                                    (void **)&err_addr)) != 0) {
396 
                diag_printf("   initialization failed at %p: %s\n",
397 
                            err_addr, flash_errmsg(stat));
398 
            }
399 
        }
400 
#endif
401 
        // second deal with the larger part in the main:
402 
        erase_start = redboot_flash_start; // high water of created images
403 
        // Now the empty bits between the end of Redboot and the cfg and dir
404 
        // blocks.
405 
#if defined(CYGSEM_REDBOOT_FLASH_CONFIG) && !defined(CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG)
406 
        if (fis_addr > cfg_base) {
407 
          erase_size = (CYG_ADDRESS)cfg_base - erase_start; // the gap between HWM and config data
408 
        } else {
409 
          erase_size = (CYG_ADDRESS)fis_addr - erase_start; // the gap between HWM and fis data
410 
        }
411 
        if ((stat = flash_erase((void *)erase_start, erase_size,
412 
                                (void **)&err_addr)) != 0) {
413 
          diag_printf("   initialization failed %p: %s\n",
414 
                 err_addr, flash_errmsg(stat));
415 
        }
416 
        erase_start += (erase_size + flash_block_size);
417 
        if (fis_addr > cfg_base) {
418 
          erase_size = (CYG_ADDRESS)fis_addr - erase_start; // the gap between config and fis data
419 
        } else {
420 
          erase_size = (CYG_ADDRESS)cfg_base - erase_start; // the gap between fis and config data
421 
        }
422 
        if ((stat = flash_erase((void *)erase_start, erase_size,
423 
                                (void **)&err_addr)) != 0) {
424 
          diag_printf("   initialization failed %p: %s\n",
425 
                 err_addr, flash_errmsg(stat));
426 
        }
427 
        erase_start += (erase_size + flash_block_size);
428 
#else  // !CYGSEM_REDBOOT_FLASH_CONFIG
429 
        erase_size = (CYG_ADDRESS)fis_addr - erase_start; // the gap between HWM and fis data
430 
        if ((stat = flash_erase((void *)erase_start, erase_size,
431 
                                (void **)&err_addr)) != 0) {
432 
          diag_printf("   initialization failed %p: %s\n",
433 
                 err_addr, flash_errmsg(stat));
434 
        }
435 
        erase_start += (erase_size + flash_block_size);
436 
#endif
437 
        // Lastly, anything at the end
438 
        erase_size = ((CYG_ADDRESS)flash_end - erase_start) + 1;
439 
        if ((stat = flash_erase((void *)erase_start, erase_size,
440 
                                (void **)&err_addr)) != 0) {
441 
            diag_printf("   initialization failed at %p: %s\n",
442 
                        err_addr, flash_errmsg(stat));
443 
        }
444 
    } else {
445 
        diag_printf("    Warning: device contents not erased, some blocks may not be usable\n");
446 
    }
447 
 
448 
    fis_update_directory();
449 
}
450 
 
451 
static void
452 
fis_list(int argc, char *argv[])
453 
{
454 
    struct fis_image_desc *img;
455 
    int i;
456 
    bool show_cksums = false;
457 
    bool show_datalen = false;
458 
    struct option_info opts[2];
459 
 
460 
#ifdef CYGHWR_REDBOOT_ARM_FLASH_SIB
461 
    // FIXME: this is somewhat half-baked
462 
    extern void arm_fis_list(void);
463 
    arm_fis_list();
464 
    return;
465 
#endif
466 
 
467 
    init_opts(&opts[0], 'd', false, OPTION_ARG_TYPE_FLG,
468 
              (void **)&show_datalen, (bool *)0, "display data length");
469 
#ifdef CYGSEM_REDBOOT_FIS_CRC_CHECK
470 
    init_opts(&opts[1], 'c', false, OPTION_ARG_TYPE_FLG,
471 
              (void **)&show_cksums, (bool *)0, "display checksums");
472 
    i = 2;
473 
#else
474 
    i = 1;
475 
#endif
476 
    if (!scan_opts(argc, argv, 2, opts, i, 0, 0, ""))
477 
    {
478 
        return;
479 
    }
480 
    img = (struct fis_image_desc *) fis_addr;
481 
    // Let diag_printf do the formatting in both cases, rather than counting
482 
    // cols by hand....
483 
    diag_printf("%-16s  %-10s  %-10s  %-10s  %-s\n",
484 
                "Name","FLASH addr",
485 
                show_cksums ? "Checksum" : "Mem addr",
486 
                show_datalen ? "Datalen" : "Length",
487 
                "Entry point" );
488 
    for (i = 0;  i < fisdir_size/sizeof(*img);  i++, img++) {
489 
        if (img->name[0] != (unsigned char)0xFF) {
490 
            diag_printf("%-16s  0x%08lX  0x%08lX  0x%08lX  0x%08lX\n", img->name,
491 
                        img->flash_base,
492 
#ifdef CYGSEM_REDBOOT_FIS_CRC_CHECK
493 
                        show_cksums ? img->file_cksum : img->mem_base,
494 
                        show_datalen ? img->data_length : img->size,
495 
#else
496 
                        img->mem_base,
497 
                        img->size,
498 
#endif
499 
                        img->entry_point);
500 
        }
501 
    }
502 
}
503 
 
504 
static void
505 
fis_free(int argc, char *argv[])
506 
{
507 
    unsigned long *fis_ptr, *fis_end;
508 
    unsigned long *area_start;
509 
 
510 
    // Do not search the area reserved for pre-RedBoot systems:
511 
    fis_ptr = (unsigned long *)((CYG_ADDRESS)flash_start + CYGNUM_REDBOOT_FLASH_RESERVED_BASE);
512 
    fis_end = (unsigned long *)(CYG_ADDRESS)flash_end;
513 
    area_start = fis_ptr;
514 
    while (fis_ptr < fis_end) {
515 
        if (*fis_ptr != (unsigned long)0xFFFFFFFF) {
516 
            if (area_start != fis_ptr) {
517 
                // Assume that this is something
518 
                diag_printf("  0x%08lX .. 0x%08lX\n",
519 
                            (CYG_ADDRESS)area_start, (CYG_ADDRESS)fis_ptr);
520 
            }
521 
            // Find next blank block
522 
            area_start = fis_ptr;
523 
            while (area_start < fis_end) {
524 
                if (*area_start == (unsigned long)0xFFFFFFFF) {
525 
                    break;
526 
                }
527 
                area_start += flash_block_size / sizeof(CYG_ADDRESS);
528 
            }
529 
            fis_ptr = area_start;
530 
        } else {
531 
            fis_ptr += flash_block_size / sizeof(CYG_ADDRESS);
532 
        }
533 
    }
534 
    if (area_start != fis_ptr) {
535 
        diag_printf("  0x%08lX .. 0x%08lX\n",
536 
                    (CYG_ADDRESS)area_start, (CYG_ADDRESS)fis_ptr);
537 
    }
538 
}
539 
 
540 
// Find the first unused area of flash which is long enough
541 
static bool
542 
fis_find_free(CYG_ADDRESS *addr, unsigned long length)
543 
{
544 
    unsigned long *fis_ptr, *fis_end;
545 
    unsigned long *area_start;
546 
 
547 
    // Do not search the area reserved for pre-RedBoot systems:
548 
    fis_ptr = (unsigned long *)((CYG_ADDRESS)flash_start + CYGNUM_REDBOOT_FLASH_RESERVED_BASE);
549 
    fis_end = (unsigned long *)(CYG_ADDRESS)flash_end;
550 
    area_start = fis_ptr;
551 
    while (fis_ptr < fis_end) {
552 
        if (*fis_ptr != (unsigned long)0xFFFFFFFF) {
553 
            if (area_start != fis_ptr) {
554 
                // Assume that this is something
555 
                if ((fis_ptr-area_start) >= (length/sizeof(unsigned))) {
556 
                    *addr = (CYG_ADDRESS)area_start;
557 
                    return true;
558 
                }
559 
            }
560 
            // Find next blank block
561 
            area_start = fis_ptr;
562 
            while (area_start < fis_end) {
563 
                if (*area_start == (unsigned long)0xFFFFFFFF) {
564 
                    break;
565 
                }
566 
                area_start += flash_block_size / sizeof(CYG_ADDRESS);
567 
            }
568 
            fis_ptr = area_start;
569 
        } else {
570 
            fis_ptr += flash_block_size / sizeof(CYG_ADDRESS);
571 
        }
572 
    }
573 
    if (area_start != fis_ptr) {
574 
        if ((fis_ptr-area_start) >= (length/sizeof(unsigned))) {
575 
            *addr = (CYG_ADDRESS)area_start;
576 
            return true;
577 
        }
578 
    }
579 
    return false;
580 
}
581 
 
582 
static void
583 
fis_create(int argc, char *argv[])
584 
{
585 
    int i, stat;
586 
    unsigned long length, img_size;
587 
    CYG_ADDRESS mem_addr, exec_addr, flash_addr, entry_addr;
588 
    char *name;
589 
    bool mem_addr_set = false;
590 
    bool exec_addr_set = false;
591 
    bool entry_addr_set = false;
592 
    bool flash_addr_set = false;
593 
    bool length_set = false;
594 
    bool img_size_set = false;
595 
    bool no_copy = false;
596 
    void *err_addr;
597 
    struct fis_image_desc *img = NULL;
598 
    bool defaults_assumed;
599 
    struct option_info opts[7];
600 
    bool prog_ok = true;
601 
 
602 
    init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
603 
              (void **)&mem_addr, (bool *)&mem_addr_set, "memory base address");
604 
    init_opts(&opts[1], 'r', true, OPTION_ARG_TYPE_NUM,
605 
              (void **)&exec_addr, (bool *)&exec_addr_set, "ram base address");
606 
    init_opts(&opts[2], 'e', true, OPTION_ARG_TYPE_NUM,
607 
              (void **)&entry_addr, (bool *)&entry_addr_set, "entry point address");
608 
    init_opts(&opts[3], 'f', true, OPTION_ARG_TYPE_NUM,
609 
              (void **)&flash_addr, (bool *)&flash_addr_set, "FLASH memory base address");
610 
    init_opts(&opts[4], 'l', true, OPTION_ARG_TYPE_NUM,
611 
              (void **)&length, (bool *)&length_set, "image length [in FLASH]");
612 
    init_opts(&opts[5], 's', true, OPTION_ARG_TYPE_NUM,
613 
              (void **)&img_size, (bool *)&img_size_set, "image size [actual data]");
614 
    init_opts(&opts[6], 'n', false, OPTION_ARG_TYPE_FLG,
615 
              (void **)&no_copy, (bool *)0, "don't copy from RAM to FLASH, just update directory");
616 
    if (!scan_opts(argc, argv, 2, opts, 7, (void *)&name, OPTION_ARG_TYPE_STR, "file name"))
617 
    {
618 
        fis_usage("invalid arguments");
619 
        return;
620 
    }
621 
 
622 
    memcpy(fis_work_block, fis_addr, fisdir_size);
623 
    defaults_assumed = false;
624 
    if (name) {
625 
        // Search existing files to acquire defaults for params not specified:
626 
        img = fis_lookup(name, NULL);
627 
        if (img) {
628 
            // Found it, so get image size from there
629 
            if (!length_set) {
630 
                length_set = true;
631 
                length = img->size;
632 
                defaults_assumed = true;
633 
            }
634 
        }
635 
    }
636 
    if (!mem_addr_set && (load_address >= (CYG_ADDRESS)ram_start) &&
637 
        (load_address_end) < (CYG_ADDRESS)ram_end) {
638 
        mem_addr = load_address;
639 
        mem_addr_set = true;
640 
        defaults_assumed = true;
641 
        // Get entry address from loader, unless overridden
642 
        if (!entry_addr_set)
643 
            entry_addr = entry_address;
644 
        if (!length_set) {
645 
            length = load_address_end - load_address;
646 
            length_set = true;
647 
        } else if (defaults_assumed && !img_size_set) {
648 
            /* We got length from the FIS table, so the size of the
649 
               actual loaded image becomes img_size */
650 
            img_size = load_address_end - load_address;
651 
            img_size_set = true;
652 
        }
653 
    }
654 
    // Get the remaining fall-back values from the fis
655 
    if (img) {
656 
        if (!exec_addr_set) {
657 
            // Preserve "normal" behaviour
658 
            exec_addr_set = true;
659 
            exec_addr = flash_addr_set ? flash_addr : mem_addr;
660 
        }
661 
        if (!flash_addr_set) {
662 
            flash_addr_set = true;
663 
            flash_addr = img->flash_base;
664 
            defaults_assumed = true;
665 
        }
666 
    }
667 
 
668 
    if ((!no_copy && !mem_addr_set) || (no_copy && !flash_addr_set) ||
669 
        !length_set || !name) {
670 
        fis_usage("required parameter missing");
671 
        return;
672 
    }
673 
    if (!img_size_set) {
674 
        img_size = length;
675 
    }
676 
    // 'length' is size of FLASH image, 'img_size' is actual data size
677 
    // Round up length to FLASH block size
678 
#ifndef CYGPKG_HAL_MIPS // FIXME: compiler is b0rken
679 
    length = ((length + flash_block_size - 1) / flash_block_size) * flash_block_size;
680 
    if (length < img_size) {
681 
        diag_printf("Invalid FLASH image size/length combination\n");
682 
        return;
683 
    }
684 
#endif
685 
    if (flash_addr_set &&
686 
        ((stat = flash_verify_addr((void *)flash_addr)) ||
687 
         (stat = flash_verify_addr((void *)(flash_addr+img_size-1))))) {
688 
        _show_invalid_flash_address(flash_addr, stat);
689 
        return;
690 
    }
691 
    if (flash_addr_set && flash_addr & (flash_block_size-1)) {
692 
        diag_printf("Invalid FLASH address: %p\n", (void *)flash_addr);
693 
        diag_printf("   must be 0x%x aligned\n", flash_block_size);
694 
        return;
695 
    }
696 
    if (strlen(name) >= sizeof(img->name)) {
697 
        diag_printf("Name is too long, must be less than %d chars\n", (int)sizeof(img->name));
698 
        return;
699 
    }
700 
    if (!no_copy) {
701 
        if ((mem_addr < (CYG_ADDRESS)ram_start) ||
702 
            ((mem_addr+img_size) >= (CYG_ADDRESS)ram_end)) {
703 
            diag_printf("** WARNING: RAM address: %p may be invalid\n", (void *)mem_addr);
704 
            diag_printf("   valid range is %p-%p\n", (void *)ram_start, (void *)ram_end);
705 
        }
706 
        if (!flash_addr_set && !fis_find_free(&flash_addr, length)) {
707 
            diag_printf("Can't locate %lx(%ld) bytes free in FLASH\n", length, length);
708 
            return;
709 
        }
710 
    }
711 
    // First, see if the image by this name has agreable properties
712 
    if (img) {
713 
        if (flash_addr_set && (img->flash_base != flash_addr)) {
714 
            diag_printf("Image found, but flash address (%p)\n"
715 
                        "             is incorrect (present image location %p)\n",
716 
                        flash_addr, img->flash_base);
717 
 
718 
            return;
719 
        }
720 
        if (img->size != length) {
721 
            diag_printf("Image found, but length (0x%lx, necessitating image size 0x%lx)\n"
722 
                        "             is incorrect (present image size 0x%lx)\n",
723 
                        img_size, length, img->size);
724 
            return;
725 
        }
726 
        if (!verify_action("An image named '%s' exists", name)) {
727 
            return;
728 
        } else {
729 
            if (defaults_assumed) {
730 
                if (no_copy &&
731 
                    !verify_action("* CAUTION * about to program '%s'\n            at %p..%p from %p",
732 
                                   name, (void *)flash_addr, (void *)(flash_addr+img_size-1),
733 
                                   (void *)mem_addr)) {
734 
                    return;  // The guy gave up
735 
                }
736 
            }
737 
        }
738 
    } else {
739 
        // If not image by that name, try and find an empty slot
740 
        img = (struct fis_image_desc *)fis_work_block;
741 
        for (i = 0;  i < fisdir_size/sizeof(*img);  i++, img++) {
742 
            if (img->name[0] == (unsigned char)0xFF) {
743 
                break;
744 
            }
745 
        }
746 
    }
747 
    if (!no_copy) {
748 
        // Safety check - make sure the address range is not within the code we're running
749 
        if (flash_code_overlaps((void *)flash_addr, (void *)(flash_addr+img_size-1))) {
750 
            diag_printf("Can't program this region - contains code in use!\n");
751 
            return;
752 
        }
753 
        if (prog_ok) {
754 
            // Erase area to be programmed
755 
            if ((stat = flash_erase((void *)flash_addr, length, (void **)&err_addr)) != 0) {
756 
                diag_printf("Can't erase region at %p: %s\n", err_addr, flash_errmsg(stat));
757 
                prog_ok = false;
758 
            }
759 
        }
760 
        if (prog_ok) {
761 
            // Now program it
762 
            if ((stat = flash_program((void *)flash_addr, (void *)mem_addr, img_size, (void **)&err_addr)) != 0) {
763 
                diag_printf("Can't program region at %p: %s\n", err_addr, flash_errmsg(stat));
764 
                prog_ok = false;
765 
            }
766 
        }
767 
    }
768 
    if (prog_ok) {
769 
        // Update directory
770 
        memset(img, 0, sizeof(*img));
771 
        strcpy(img->name, name);
772 
        img->flash_base = flash_addr;
773 
        img->mem_base = exec_addr_set ? exec_addr : (flash_addr_set ? flash_addr : mem_addr);
774 
        img->entry_point = entry_addr_set ? entry_addr : (CYG_ADDRESS)entry_address;  // Hope it's been set
775 
        img->size = length;
776 
        img->data_length = img_size;
777 
#ifdef CYGSEM_REDBOOT_FIS_CRC_CHECK
778 
        img->file_cksum = cyg_crc32((unsigned char *)flash_addr, img_size);
779 
#endif
780 
        fis_update_directory();
781 
    }
782 
}
783 
 
784 
extern void arm_fis_delete(char *);
785 
static void
786 
fis_delete(int argc, char *argv[])
787 
{
788 
    char *name;
789 
    int num_reserved, i, stat;
790 
    void *err_addr;
791 
    struct fis_image_desc *img;
792 
 
793 
    if (!scan_opts(argc, argv, 2, 0, 0, (void **)&name, OPTION_ARG_TYPE_STR, "image name"))
794 
    {
795 
        fis_usage("invalid arguments");
796 
        return;
797 
    }
798 
#ifdef CYGHWR_REDBOOT_ARM_FLASH_SIB
799 
    // FIXME: this is somewhat half-baked
800 
    arm_fis_delete(name);
801 
    return;
802 
#endif
803 
    img = (struct fis_image_desc *)fis_work_block;
804 
    num_reserved = 0;
805 
#ifdef CYGOPT_REDBOOT_FIS_RESERVED_BASE
806 
    num_reserved++;
807 
#endif
808 
#ifdef CYGOPT_REDBOOT_FIS_REDBOOT
809 
    num_reserved++;
810 
#endif
811 
#ifdef CYGOPT_REDBOOT_FIS_REDBOOT_BACKUP
812 
    num_reserved++;
813 
#endif
814 
#ifdef CYGOPT_REDBOOT_FIS_REDBOOT_POST
815 
    num_reserved++;
816 
#endif
817 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
818 
    num_reserved++;
819 
#endif
820 
#if 1 // And the descriptor for the descriptor table itself
821 
    num_reserved++;
822 
#endif
823 
 
824 
    memcpy(fis_work_block, fis_addr, fisdir_size);
825 
    img = fis_lookup(name, &i);
826 
    if (img) {
827 
        if (i < num_reserved) {
828 
            diag_printf("Sorry, '%s' is a reserved image and cannot be deleted\n", img->name);
829 
            return;
830 
        }
831 
        if (!verify_action("Delete image '%s'", name)) {
832 
            return;
833 
        }
834 
    } else {
835 
        diag_printf("No image '%s' found\n", name);
836 
        return;
837 
    }
838 
    // Erase Data blocks (free space)
839 
    if ((stat = flash_erase((void *)img->flash_base, img->size, (void **)&err_addr)) != 0) {
840 
        diag_printf("Error erasing at %p: %s\n", err_addr, flash_errmsg(stat));
841 
    } else {
842 
        img->name[0] = (unsigned char)0xFF;
843 
        fis_update_directory();
844 
    }
845 
}
846 
 
847 
static void
848 
fis_load(int argc, char *argv[])
849 
{
850 
    char *name;
851 
    struct fis_image_desc *img;
852 
    CYG_ADDRESS mem_addr;
853 
    bool mem_addr_set = false;
854 
    bool show_cksum = false;
855 
    struct option_info opts[3];
856 
#ifdef CYGPKG_REDBOOT_FIS_CRC_CHECK
857 
    unsigned long cksum;
858 
#endif
859 
    int num_options;
860 
#ifdef CYGPKG_COMPRESS_ZLIB
861 
    bool decompress = false;
862 
#endif
863 
 
864 
    init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
865 
              (void **)&mem_addr, (bool *)&mem_addr_set, "memory [load] base address");
866 
    init_opts(&opts[1], 'c', false, OPTION_ARG_TYPE_FLG,
867 
              (void **)&show_cksum, (bool *)0, "display checksum");
868 
    num_options = 2;
869 
#ifdef CYGPKG_COMPRESS_ZLIB
870 
    init_opts(&opts[num_options], 'd', false, OPTION_ARG_TYPE_FLG,
871 
              (void **)&decompress, 0, "decompress");
872 
    num_options++;
873 
#endif
874 
 
875 
    if (!scan_opts(argc, argv, 2, opts, num_options, (void **)&name, OPTION_ARG_TYPE_STR, "image name"))
876 
    {
877 
        fis_usage("invalid arguments");
878 
        return;
879 
    }
880 
    memcpy(fis_work_block, fis_addr, fisdir_size);
881 
    if ((img = fis_lookup(name, NULL)) == (struct fis_image_desc *)0) {
882 
        diag_printf("No image '%s' found\n", name);
883 
        return;
884 
    }
885 
    if (!mem_addr_set) {
886 
        mem_addr = img->mem_base;
887 
    }
888 
    // Load image from FLASH into RAM
889 
    if ((mem_addr < (CYG_ADDRESS)user_ram_start) ||
890 
        ((mem_addr+img->data_length) >= (CYG_ADDRESS)user_ram_end)) {
891 
        diag_printf("Not a loadable image\n");
892 
        return;
893 
    }
894 
#ifdef CYGPKG_COMPRESS_ZLIB
895 
    if (decompress) {
896 
        int err;
897 
        _pipe_t fis_load_pipe;
898 
        _pipe_t* p = &fis_load_pipe;
899 
        p->out_buf = (unsigned char*) mem_addr;
900 
        p->out_max = p->out_size = -1;
901 
        p->in_buf = (unsigned char*) img->flash_base;
902 
        p->in_avail = img->data_length;
903 
 
904 
        err = (*_dc_init)(p);
905 
 
906 
        if (0 == err)
907 
            err = (*_dc_inflate)(p);
908 
 
909 
        // Free used resources, do final translation of
910 
        // error value.
911 
        err = (*_dc_close)(p, err);
912 
 
913 
        if (0 != err && p->msg) {
914 
            diag_printf("decompression error: %s\n", p->msg);
915 
        } else {
916 
            diag_printf("Image loaded from %p-%p\n", (unsigned char *)mem_addr, p->out_buf);
917 
        }
918 
 
919 
        // Set load address/top
920 
        load_address = mem_addr;
921 
        load_address_end = (unsigned long)p->out_buf;
922 
 
923 
        // Reload fis directory
924 
        memcpy(fis_work_block, fis_addr, fisdir_size);
925 
    } else // dangling block
926 
#endif
927 
    {
928 
        memcpy((void *)mem_addr, (void *)img->flash_base, img->data_length);
929 
 
930 
        // Set load address/top
931 
        load_address = mem_addr;
932 
        load_address_end = mem_addr + img->data_length;
933 
    }
934 
    entry_address = (unsigned long)img->entry_point;
935 
 
936 
#ifdef CYGPKG_REDBOOT_FIS_CRC_CHECK
937 
    cksum = cyg_crc32((unsigned char *)mem_addr, img->data_length);
938 
    if (show_cksum) {
939 
        diag_printf("Checksum: 0x%08lx\n", cksum);
940 
    }
941 
    // When decompressing, leave CRC checking to decompressor
942 
    if (!decompress && img->file_cksum) {
943 
        if (cksum != img->file_cksum) {
944 
            diag_printf("** Warning - checksum failure.  stored: 0x%08lx, computed: 0x%08lx\n",
945 
                        img->file_cksum, cksum);
946 
        }
947 
    }
948 
#endif
949 
}
950 
#endif // CYGOPT_REDBOOT_FIS
951 
 
952 
static void
953 
fis_write(int argc, char *argv[])
954 
{
955 
    int stat;
956 
    unsigned long length;
957 
    CYG_ADDRESS mem_addr, flash_addr;
958 
    bool mem_addr_set = false;
959 
    bool flash_addr_set = false;
960 
    bool length_set = false;
961 
    void *err_addr;
962 
    struct option_info opts[3];
963 
    bool prog_ok;
964 
 
965 
    init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
966 
              (void **)&mem_addr, (bool *)&mem_addr_set, "memory base address");
967 
    init_opts(&opts[1], 'f', true, OPTION_ARG_TYPE_NUM,
968 
              (void **)&flash_addr, (bool *)&flash_addr_set, "FLASH memory base address");
969 
    init_opts(&opts[2], 'l', true, OPTION_ARG_TYPE_NUM,
970 
              (void **)&length, (bool *)&length_set, "image length [in FLASH]");
971 
    if (!scan_opts(argc, argv, 2, opts, 3, 0, 0, 0))
972 
    {
973 
        fis_usage("invalid arguments");
974 
        return;
975 
    }
976 
 
977 
    if (!mem_addr_set || !flash_addr_set || !length_set) {
978 
        fis_usage("required parameter missing");
979 
        return;
980 
    }
981 
 
982 
    // Round up length to FLASH block size
983 
#ifndef CYGPKG_HAL_MIPS // FIXME: compiler is b0rken
984 
    length = ((length + flash_block_size - 1) / flash_block_size) * flash_block_size;
985 
#endif
986 
    if (flash_addr_set &&
987 
        ((stat = flash_verify_addr((void *)flash_addr)) ||
988 
         (stat = flash_verify_addr((void *)(flash_addr+length-1))))) {
989 
        _show_invalid_flash_address(flash_addr, stat);
990 
        return;
991 
    }
992 
    if (flash_addr_set && flash_addr & (flash_block_size-1)) {
993 
        diag_printf("Invalid FLASH address: %p\n", (void *)flash_addr);
994 
        diag_printf("   must be 0x%x aligned\n", flash_block_size);
995 
        return;
996 
    }
997 
    if ((mem_addr < (CYG_ADDRESS)ram_start) ||
998 
        ((mem_addr+length) >= (CYG_ADDRESS)ram_end)) {
999 
        diag_printf("** WARNING: RAM address: %p may be invalid\n", (void *)mem_addr);
1000 
        diag_printf("   valid range is %p-%p\n", (void *)ram_start, (void *)ram_end);
1001 
    }
1002 
    // Safety check - make sure the address range is not within the code we're running
1003 
    if (flash_code_overlaps((void *)flash_addr, (void *)(flash_addr+length-1))) {
1004 
        diag_printf("Can't program this region - contains code in use!\n");
1005 
        return;
1006 
    }
1007 
    if (!verify_action("* CAUTION * about to program FLASH\n            at %p..%p from %p",
1008 
                       (void *)flash_addr, (void *)(flash_addr+length-1),
1009 
                       (void *)mem_addr)) {
1010 
        return;  // The guy gave up
1011 
    }
1012 
    prog_ok = true;
1013 
    if (prog_ok) {
1014 
        // Erase area to be programmed
1015 
        if ((stat = flash_erase((void *)flash_addr, length, (void **)&err_addr)) != 0) {
1016 
            diag_printf("Can't erase region at %p: %s\n", err_addr, flash_errmsg(stat));
1017 
            prog_ok = false;
1018 
        }
1019 
    }
1020 
    if (prog_ok) {
1021 
        // Now program it
1022 
        if ((stat = flash_program((void *)flash_addr, (void *)mem_addr, length, (void **)&err_addr)) != 0) {
1023 
            diag_printf("Can't program region at %p: %s\n", err_addr, flash_errmsg(stat));
1024 
            prog_ok = false;
1025 
        }
1026 
    }
1027 
}
1028 
 
1029 
static void
1030 
fis_erase(int argc, char *argv[])
1031 
{
1032 
    int stat;
1033 
    unsigned long length;
1034 
    CYG_ADDRESS flash_addr;
1035 
    bool flash_addr_set = false;
1036 
    bool length_set = false;
1037 
    void *err_addr;
1038 
    struct option_info opts[2];
1039 
 
1040 
    init_opts(&opts[0], 'f', true, OPTION_ARG_TYPE_NUM,
1041 
              (void **)&flash_addr, (bool *)&flash_addr_set, "FLASH memory base address");
1042 
    init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
1043 
              (void **)&length, (bool *)&length_set, "length");
1044 
    if (!scan_opts(argc, argv, 2, opts, 2, (void **)0, 0, ""))
1045 
    {
1046 
        fis_usage("invalid arguments");
1047 
        return;
1048 
    }
1049 
 
1050 
    if (!flash_addr_set || !length_set) {
1051 
        fis_usage("missing argument");
1052 
        return;
1053 
    }
1054 
    if (flash_addr_set &&
1055 
        ((stat = flash_verify_addr((void *)flash_addr)) ||
1056 
         (stat = flash_verify_addr((void *)(flash_addr+length-1))))) {
1057 
        _show_invalid_flash_address(flash_addr, stat);
1058 
        return;
1059 
    }
1060 
    if (flash_addr_set && flash_addr & (flash_block_size-1)) {
1061 
        diag_printf("Invalid FLASH address: %p\n", (void *)flash_addr);
1062 
        diag_printf("   must be 0x%x aligned\n", flash_block_size);
1063 
        return;
1064 
    }
1065 
    // Safety check - make sure the address range is not within the code we're running
1066 
    if (flash_code_overlaps((void *)flash_addr, (void *)(flash_addr+length-1))) {
1067 
        diag_printf("Can't erase this region - contains code in use!\n");
1068 
        return;
1069 
    }
1070 
    if ((stat = flash_erase((void *)flash_addr, length, (void **)&err_addr)) != 0) {
1071 
        diag_printf("Error erasing at %p: %s\n", err_addr, flash_errmsg(stat));
1072 
    }
1073 
}
1074 
 
1075 
#ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
1076 
 
1077 
static void
1078 
fis_lock(int argc, char *argv[])
1079 
{
1080 
    char *name;
1081 
    int stat;
1082 
    unsigned long length;
1083 
    CYG_ADDRESS flash_addr;
1084 
    bool flash_addr_set = false;
1085 
    bool length_set = false;
1086 
    void *err_addr;
1087 
    struct option_info opts[2];
1088 
 
1089 
    init_opts(&opts[0], 'f', true, OPTION_ARG_TYPE_NUM,
1090 
              (void **)&flash_addr, (bool *)&flash_addr_set, "FLASH memory base address");
1091 
    init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
1092 
              (void **)&length, (bool *)&length_set, "length");
1093 
    if (!scan_opts(argc, argv, 2, opts, 2, (void **)&name, OPTION_ARG_TYPE_STR, "image name"))
1094 
    {
1095 
        fis_usage("invalid arguments");
1096 
        return;
1097 
    }
1098 
 
1099 
    /* Get parameters from image if specified */
1100 
    if (name) {
1101 
        struct fis_image_desc *img;
1102 
        memcpy(fis_work_block, fis_addr, fisdir_size);
1103 
        if ((img = fis_lookup(name, NULL)) == (struct fis_image_desc *)0) {
1104 
            diag_printf("No image '%s' found\n", name);
1105 
            return;
1106 
        }
1107 
 
1108 
        flash_addr = img->flash_base;
1109 
        length = img->size;
1110 
    } else if (!flash_addr_set || !length_set) {
1111 
        fis_usage("missing argument");
1112 
        return;
1113 
    }
1114 
    if (flash_addr_set &&
1115 
        ((stat = flash_verify_addr((void *)flash_addr)) ||
1116 
         (stat = flash_verify_addr((void *)(flash_addr+length-1))))) {
1117 
        _show_invalid_flash_address(flash_addr, stat);
1118 
        return;
1119 
    }
1120 
    if ((stat = flash_lock((void *)flash_addr, length, (void **)&err_addr)) != 0) {
1121 
        diag_printf("Error locking at %p: %s\n", err_addr, flash_errmsg(stat));
1122 
    }
1123 
}
1124 
 
1125 
static void
1126 
fis_unlock(int argc, char *argv[])
1127 
{
1128 
    char *name;
1129 
    int stat;
1130 
    unsigned long length;
1131 
    CYG_ADDRESS flash_addr;
1132 
    bool flash_addr_set = false;
1133 
    bool length_set = false;
1134 
    void *err_addr;
1135 
    struct option_info opts[2];
1136 
 
1137 
    init_opts(&opts[0], 'f', true, OPTION_ARG_TYPE_NUM,
1138 
              (void **)&flash_addr, (bool *)&flash_addr_set, "FLASH memory base address");
1139 
    init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
1140 
              (void **)&length, (bool *)&length_set, "length");
1141 
    if (!scan_opts(argc, argv, 2, opts, 2, (void **)&name, OPTION_ARG_TYPE_STR, "image name"))
1142 
    {
1143 
        fis_usage("invalid arguments");
1144 
        return;
1145 
    }
1146 
 
1147 
    if (name) {
1148 
        struct fis_image_desc *img;
1149 
        memcpy(fis_work_block, fis_addr, fisdir_size);
1150 
        if ((img = fis_lookup(name, NULL)) == (struct fis_image_desc *)0) {
1151 
            diag_printf("No image '%s' found\n", name);
1152 
            return;
1153 
        }
1154 
 
1155 
        flash_addr = img->flash_base;
1156 
        length = img->size;
1157 
    } else  if (!flash_addr_set || !length_set) {
1158 
        fis_usage("missing argument");
1159 
        return;
1160 
    }
1161 
    if (flash_addr_set &&
1162 
        ((stat = flash_verify_addr((void *)flash_addr)) ||
1163 
         (stat = flash_verify_addr((void *)(flash_addr+length-1))))) {
1164 
        _show_invalid_flash_address(flash_addr, stat);
1165 
        return;
1166 
    }
1167 
 
1168 
    if ((stat = flash_unlock((void *)flash_addr, length, (void **)&err_addr)) != 0) {
1169 
        diag_printf("Error unlocking at %p: %s\n", err_addr, flash_errmsg(stat));
1170 
    }
1171 
}
1172 
#endif
1173 
 
1174 
// This is set non-zero if the FLASH subsystem has successfully been initialized
1175 
static int __flash_init = 0;
1176 
 
1177 
void
1178 
_flash_info(void)
1179 
{
1180 
    if (!__flash_init) return;
1181 
    diag_printf("FLASH: %p - %p, %d blocks of %p bytes each.\n",
1182 
           flash_start, (CYG_ADDRWORD)flash_end + 1, flash_num_blocks, (void *)flash_block_size);
1183 
}
1184 
 
1185 
static bool
1186 
do_flash_init(void)
1187 
{
1188 
    int stat;
1189 
 
1190 
    if (!__flash_init) {
1191 
        if ((stat = flash_init((void *)(workspace_end-FLASH_MIN_WORKSPACE),
1192 
                               FLASH_MIN_WORKSPACE, diag_printf)) != 0) {
1193 
            diag_printf("FLASH: driver init failed: %s\n", flash_errmsg(stat));
1194 
            return false;
1195 
        }
1196 
        flash_get_limits((void *)0, (void **)&flash_start, (void **)&flash_end);
1197 
        // Keep 'end' address as last valid location, to avoid wrap around problems
1198 
        flash_end = (void *)((CYG_ADDRESS)flash_end - 1);
1199 
        flash_get_block_info(&flash_block_size, &flash_num_blocks);
1200 
        workspace_end = (unsigned char *)(workspace_end-FLASH_MIN_WORKSPACE);
1201 
#ifdef CYGOPT_REDBOOT_FIS
1202 
# ifdef CYGOPT_REDBOOT_FIS_ZLIB_COMMON_BUFFER
1203 
        fis_work_block = fis_zlib_common_buffer;
1204 
        if(CYGNUM_REDBOOT_FIS_ZLIB_COMMON_BUFFER_SIZE < flash_block_size) {
1205 
            diag_printf("FLASH: common buffer too small\n");
1206 
            workspace_end += FLASH_MIN_WORKSPACE;
1207 
            return false;
1208 
        }
1209 
# else
1210 
        workspace_end = (unsigned char *)(workspace_end-flash_block_size);
1211 
        fis_work_block = workspace_end;
1212 
# endif
1213 
        fisdir_size = flash_block_size;
1214 
        if (CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK < 0) {
1215 
            fis_addr = (void *)((CYG_ADDRESS)flash_end + 1 +
1216 
                                (CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK*flash_block_size));
1217 
        } else {
1218 
            fis_addr = (void *)((CYG_ADDRESS)flash_start +
1219 
                                (CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK*flash_block_size));
1220 
        }
1221 
#endif
1222 
        __flash_init = 1;
1223 
    }
1224 
    return true;
1225 
}
1226 
 
1227 
// Wrapper to avoid compiler warnings
1228 
static void
1229 
_do_flash_init(void)
1230 
{
1231 
    do_flash_init();
1232 
}
1233 
 
1234 
#ifndef CYGOPT_REDBOOT_FLASH_CONFIG
1235 
RedBoot_init(_do_flash_init, RedBoot_INIT_FIRST);
1236 
#endif
1237 
 
1238 
static void
1239 
do_fis(int argc, char *argv[])
1240 
{
1241 
    struct cmd *cmd;
1242 
 
1243 
    if (argc < 2) {
1244 
        fis_usage("too few arguments");
1245 
        return;
1246 
    }
1247 
    if (!do_flash_init()) {
1248 
        diag_printf("Sorry, no FLASH memory is available\n");
1249 
        return;
1250 
    }
1251 
    if ((cmd = cmd_search(__FIS_cmds_TAB__, &__FIS_cmds_TAB_END__,
1252 
                          argv[1])) != (struct cmd *)0) {
1253 
        (cmd->fun)(argc, argv);
1254 
        return;
1255 
    }
1256 
    fis_usage("unrecognized command");
1257 
}
1258 
 
1259 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG
1260 
 
1261 
static bool config_ok;
1262 
 
1263 
#define CONFIG_KEY1    0x0BADFACE
1264 
#define CONFIG_KEY2    0xDEADDEAD
1265 
 
1266 
#define CONFIG_DONE    0
1267 
#define CONFIG_ABORT  -1
1268 
#define CONFIG_CHANGED 1
1269 
#define CONFIG_OK      2
1270 
#define CONFIG_BACK    3
1271 
#define CONFIG_BAD     4
1272 
 
1273 
// Note: the following options are related.  If 'boot_script' is false, then
1274 
// the other values are used in the configuration.  Because of the way
1275 
// that configuration tables are generated, they should have names which
1276 
// are related.  The configuration options will show up lexicographically
1277 
// ordered, thus the peculiar naming.
1278 
RedBoot_config_option("Run script at boot",
1279 
                      boot_script,
1280 
                      ALWAYS_ENABLED, true,
1281 
                      CONFIG_BOOL,
1282 
                      false
1283 
    );
1284 
RedBoot_config_option("Boot script",
1285 
                      boot_script_data,
1286 
                      "boot_script", true,
1287 
                      CONFIG_SCRIPT,
1288 
                      ""
1289 
    );
1290 
// Some preprocessor magic for building the [constant] prompt string
1291 
#define __cat(s1,c2,s3) s1 #c2 s3
1292 
#define _cat(s1,c2,s3) __cat(s1,c2,s3)
1293 
RedBoot_config_option(_cat("Boot script timeout (",
1294 
                           CYGNUM_REDBOOT_BOOT_SCRIPT_TIMEOUT_RESOLUTION,
1295 
                           "ms resolution)"),
1296 
                      boot_script_timeout,
1297 
                      "boot_script", true,
1298 
                      CONFIG_INT,
1299 
 
1300 
    );
1301 
#undef __cat
1302 
#undef _cat
1303 
 
1304 
#ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
1305 
RedBoot_config_option("Console baud rate",
1306 
                      console_baud_rate,
1307 
                      ALWAYS_ENABLED, true,
1308 
                      CONFIG_INT,
1309 
                      CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD
1310 
    );
1311 
#endif
1312 
 
1313 
CYG_HAL_TABLE_BEGIN( __CONFIG_options_TAB__, RedBoot_config_options);
1314 
CYG_HAL_TABLE_END( __CONFIG_options_TAB_END__, RedBoot_config_options);
1315 
 
1316 
extern struct config_option __CONFIG_options_TAB__[], __CONFIG_options_TAB_END__[];
1317 
 
1318 
//
1319 
// Layout of config data
1320 
// Each data item is variable length, with the name, type and dependencies
1321 
// encoded into the object.
1322 
//  offset   contents
1323 
//       0   data type
1324 
//       1   length of name (N)
1325 
//       2   enable sense
1326 
//       3   length of enable key (M)
1327 
//       4   key name
1328 
//     N+4   enable key
1329 
//   M+N+4   data value
1330 
//
1331 
 
1332 
#define CONFIG_OBJECT_TYPE(dp)          (dp)[0]
1333 
#define CONFIG_OBJECT_KEYLEN(dp)        (dp)[1]
1334 
#define CONFIG_OBJECT_ENABLE_SENSE(dp)  (dp)[2]
1335 
#define CONFIG_OBJECT_ENABLE_KEYLEN(dp) (dp)[3]
1336 
#define CONFIG_OBJECT_KEY(dp)           ((dp)+4)
1337 
#define CONFIG_OBJECT_ENABLE_KEY(dp)    ((dp)+4+CONFIG_OBJECT_KEYLEN(dp))
1338 
#define CONFIG_OBJECT_VALUE(dp)         ((dp)+4+CONFIG_OBJECT_KEYLEN(dp)+CONFIG_OBJECT_ENABLE_KEYLEN(dp))
1339 
 
1340 
#define LIST_OPT_LIST_ONLY (1)
1341 
#define LIST_OPT_NICKNAMES (2)
1342 
#define LIST_OPT_FULLNAMES (4)
1343 
#define LIST_OPT_DUMBTERM  (8)
1344 
 
1345 
static void config_init(void);
1346 
 
1347 
static int
1348 
get_config(unsigned char *dp, char *title, int list_opt, char *newvalue )
1349 
{
1350 
    char line[256], hold_line[256], *sp, *lp;
1351 
    int ret;
1352 
    bool hold_bool_val, new_bool_val, enable;
1353 
    unsigned long hold_int_val, new_int_val;
1354 
#ifdef CYGPKG_REDBOOT_NETWORKING
1355 
    in_addr_t hold_ip_val, new_ip_val;
1356 
    enet_addr_t hold_esa_val;
1357 
    int esa_ptr;
1358 
    char *esp;
1359 
#endif
1360 
    void *val_ptr;
1361 
    int type;
1362 
 
1363 
    if (CONFIG_OBJECT_ENABLE_KEYLEN(dp)) {
1364 
        flash_get_config(CONFIG_OBJECT_ENABLE_KEY(dp), &enable, CONFIG_BOOL);
1365 
        if (((bool)CONFIG_OBJECT_ENABLE_SENSE(dp) && !enable) ||
1366 
            (!(bool)CONFIG_OBJECT_ENABLE_SENSE(dp) && enable)) {
1367 
            return CONFIG_OK;  // Disabled field
1368 
        }
1369 
    }
1370 
    lp = line;  *lp = '\0';
1371 
    val_ptr = (void *)CONFIG_OBJECT_VALUE(dp);
1372 
    if (LIST_OPT_NICKNAMES & list_opt)
1373 
        diag_printf("%s: ", CONFIG_OBJECT_KEY(dp));
1374 
    if (LIST_OPT_FULLNAMES & list_opt) {
1375 
        if (title != (char *)NULL) {
1376 
            diag_printf("%s: ", title);
1377 
        } else {
1378 
            diag_printf("%s: ", CONFIG_OBJECT_KEY(dp));
1379 
        }
1380 
    }
1381 
    switch (type = CONFIG_OBJECT_TYPE(dp)) {
1382 
    case CONFIG_BOOL:
1383 
        memcpy(&hold_bool_val, val_ptr, sizeof(bool));
1384 
        lp += diag_sprintf(lp, "%s", hold_bool_val ? "true" : "false");
1385 
        break;
1386 
    case CONFIG_INT:
1387 
        memcpy(&hold_int_val, val_ptr, sizeof(unsigned long));
1388 
        lp += diag_sprintf(lp, "%ld", hold_int_val);
1389 
        break;
1390 
#ifdef CYGPKG_REDBOOT_NETWORKING
1391 
    case CONFIG_IP:
1392 
        lp += diag_sprintf(lp, "%s", inet_ntoa((in_addr_t *)val_ptr));
1393 
        if (0 == strcmp("0.0.0.0", line) && !(LIST_OPT_LIST_ONLY & list_opt)) {
1394 
            // then we have a deeply unhelpful starting text - kill it off
1395 
            // (unless we are just listing all values)
1396 
            lp = line;  *lp = '\0';
1397 
        }
1398 
        break;
1399 
    case CONFIG_ESA:
1400 
        for (esa_ptr = 0;  esa_ptr < sizeof(enet_addr_t);  esa_ptr++) {
1401 
            lp += diag_sprintf(lp, "0x%02X", ((unsigned char *)val_ptr)[esa_ptr]);
1402 
            if (esa_ptr < (sizeof(enet_addr_t)-1)) lp += diag_sprintf(lp, ":");
1403 
        }
1404 
        break;
1405 
#endif
1406 
    case CONFIG_STRING:
1407 
        lp += diag_sprintf(lp, "%s", (unsigned char *)val_ptr);
1408 
        break;
1409 
    case CONFIG_SCRIPT:
1410 
        diag_printf("\n");
1411 
        sp = lp = (unsigned char *)val_ptr;
1412 
        while (*sp) {
1413 
            while (*lp != '\n') lp++;
1414 
            *lp = '\0';
1415 
            diag_printf(".. %s\n", sp);
1416 
            *lp++ = '\n';
1417 
            sp = lp;
1418 
        }
1419 
        break;
1420 
    }
1421 
    if (LIST_OPT_LIST_ONLY & list_opt) {
1422 
        diag_printf("%s\n", line);
1423 
        return CONFIG_OK;
1424 
    }
1425 
    if (type != CONFIG_SCRIPT) {
1426 
        if (NULL != newvalue) {
1427 
            ret = strlen(newvalue);
1428 
            if (ret > sizeof(line))
1429 
                return CONFIG_BAD;
1430 
            strcpy(hold_line, line); // Hold the old value for comparison
1431 
            strcpy(line, newvalue);
1432 
            diag_printf("Setting to %s\n", newvalue);
1433 
        } else {
1434 
            // read from terminal
1435 
            strcpy(hold_line, line);
1436 
            if (LIST_OPT_DUMBTERM & list_opt) {
1437 
                diag_printf( (CONFIG_STRING == type ?
1438 
                              "%s > " :
1439 
                              "%s ? " ), line);
1440 
                *line = '\0';
1441 
            }
1442 
            ret = _rb_gets_preloaded(line, sizeof(line), 0);
1443 
        }
1444 
        if (ret < 0) return CONFIG_ABORT;
1445 
        // empty input - leave value untouched (else DNS goes away for a
1446 
        // minute to try to look it up) but we must accept empty value for strings.
1447 
        if (0 == line[0] && CONFIG_STRING != type) return CONFIG_OK;
1448 
        if (strcmp(line, hold_line) == 0) return CONFIG_OK;  // Just a CR - leave value untouched
1449 
        lp = &line[strlen(line)-1];
1450 
        if (*lp == '.') return CONFIG_DONE;
1451 
        if (*lp == '^') return CONFIG_BACK;
1452 
    }
1453 
    switch (type) {
1454 
    case CONFIG_BOOL:
1455 
        memcpy(&hold_bool_val, val_ptr, sizeof(bool));
1456 
        if (!parse_bool(line, &new_bool_val)) {
1457 
            return CONFIG_BAD;
1458 
        }
1459 
        if (hold_bool_val != new_bool_val) {
1460 
            memcpy(val_ptr, &new_bool_val, sizeof(bool));
1461 
            return CONFIG_CHANGED;
1462 
        } else {
1463 
            return CONFIG_OK;
1464 
        }
1465 
        break;
1466 
    case CONFIG_INT:
1467 
        memcpy(&hold_int_val, val_ptr, sizeof(unsigned long));
1468 
        if (!parse_num(line, &new_int_val, 0, 0)) {
1469 
            return CONFIG_BAD;
1470 
        }
1471 
        if (hold_int_val != new_int_val) {
1472 
            memcpy(val_ptr, &new_int_val, sizeof(unsigned long));
1473 
            return CONFIG_CHANGED;
1474 
        } else {
1475 
            return CONFIG_OK;
1476 
        }
1477 
        break;
1478 
#ifdef CYGPKG_REDBOOT_NETWORKING
1479 
    case CONFIG_IP:
1480 
        memcpy(&hold_ip_val.s_addr, &((in_addr_t *)val_ptr)->s_addr, sizeof(in_addr_t));
1481 
        if (!_gethostbyname(line, &new_ip_val)) {
1482 
            return CONFIG_BAD;
1483 
        }
1484 
        if (hold_ip_val.s_addr != new_ip_val.s_addr) {
1485 
            memcpy(val_ptr, &new_ip_val, sizeof(in_addr_t));
1486 
            return CONFIG_CHANGED;
1487 
        } else {
1488 
            return CONFIG_OK;
1489 
        }
1490 
        break;
1491 
    case CONFIG_ESA:
1492 
        memcpy(&hold_esa_val, val_ptr, sizeof(enet_addr_t));
1493 
        esp = line;
1494 
        for (esa_ptr = 0;  esa_ptr < sizeof(enet_addr_t);  esa_ptr++) {
1495 
            unsigned long esa_byte;
1496 
            if (!parse_num(esp, &esa_byte, &esp, ":")) {
1497 
                memcpy(val_ptr, &hold_esa_val, sizeof(enet_addr_t));
1498 
                return CONFIG_BAD;
1499 
            }
1500 
            ((unsigned char *)val_ptr)[esa_ptr] = esa_byte;
1501 
        }
1502 
        return CONFIG_CHANGED;
1503 
        break;
1504 
#endif
1505 
    case CONFIG_SCRIPT:
1506 
        // Assume it always changes
1507 
        sp = (unsigned char *)val_ptr;
1508 
        diag_printf("Enter script, terminate with empty line\n");
1509 
        while (true) {
1510 
            *sp = '\0';
1511 
            diag_printf(">> ");
1512 
            ret = _rb_gets(line, sizeof(line), 0);
1513 
            if (ret < 0) return CONFIG_ABORT;
1514 
            if (strlen(line) == 0) break;
1515 
            lp = line;
1516 
            while (*lp) {
1517 
                *sp++ = *lp++;
1518 
            }
1519 
            *sp++ = '\n';
1520 
        }
1521 
        break;
1522 
    case CONFIG_STRING:
1523 
        if (strlen(line) >= MAX_STRING_LENGTH) {
1524 
            diag_printf("Sorry, value is too long\n");
1525 
            return CONFIG_BAD;
1526 
        }
1527 
        strcpy((unsigned char *)val_ptr, line);
1528 
        break;
1529 
    }
1530 
    return CONFIG_CHANGED;
1531 
}
1532 
 
1533 
//
1534 
// Manage configuration information with the FLASH
1535 
//
1536 
 
1537 
static int
1538 
config_length(int type)
1539 
{
1540 
    switch (type) {
1541 
    case CONFIG_BOOL:
1542 
        return sizeof(bool);
1543 
    case CONFIG_INT:
1544 
        return sizeof(unsigned long);
1545 
#ifdef CYGPKG_REDBOOT_NETWORKING
1546 
    case CONFIG_IP:
1547 
        return sizeof(in_addr_t);
1548 
    case CONFIG_ESA:
1549 
        // Would like this to be sizeof(enet_addr_t), but that causes much
1550 
        // pain since it fouls the alignment of data which follows.
1551 
        return 8;
1552 
#endif
1553 
    case CONFIG_STRING:
1554 
        return MAX_STRING_LENGTH;
1555 
    case CONFIG_SCRIPT:
1556 
        return MAX_SCRIPT_LENGTH;
1557 
    default:
1558 
        return 0;
1559 
    }
1560 
}
1561 
 
1562 
static cmd_fun do_flash_config;
1563 
RedBoot_cmd("fconfig",
1564 
            "Manage configuration kept in FLASH memory",
1565 
            "[-i] [-l] [-n] [-f] [-d] | [-d] nickname [value]",
1566 
            do_flash_config
1567 
    );
1568 
 
1569 
static void
1570 
do_flash_config(int argc, char *argv[])
1571 
{
1572 
    bool need_update = false;
1573 
    struct config_option *optend = __CONFIG_options_TAB_END__;
1574 
    struct config_option *opt = __CONFIG_options_TAB__;
1575 
    struct option_info opts[5];
1576 
    bool list_only;
1577 
    bool nicknames;
1578 
    bool fullnames;
1579 
    bool dumbterminal;
1580 
    int list_opt = 0;
1581 
    unsigned char *dp;
1582 
    int len, ret;
1583 
    char *title;
1584 
    char *onlyone = NULL;
1585 
    char *onevalue = NULL;
1586 
    bool doneone = false;
1587 
    bool init = false;
1588 
 
1589 
    if (!__flash_init) {
1590 
        diag_printf("Sorry, no FLASH memory is available\n");
1591 
        return;
1592 
    }
1593 
    memcpy(backup_config, config, sizeof(struct _config));
1594 
    script = (unsigned char *)0;
1595 
 
1596 
    init_opts(&opts[0], 'l', false, OPTION_ARG_TYPE_FLG,
1597 
              (void **)&list_only, (bool *)0, "list configuration only");
1598 
    init_opts(&opts[1], 'n', false, OPTION_ARG_TYPE_FLG,
1599 
              (void **)&nicknames, (bool *)0, "show nicknames");
1600 
    init_opts(&opts[2], 'f', false, OPTION_ARG_TYPE_FLG,
1601 
              (void **)&fullnames, (bool *)0, "show full names");
1602 
    init_opts(&opts[3], 'i', false, OPTION_ARG_TYPE_FLG,
1603 
              (void **)&init, (bool *)0, "initialize configuration database");
1604 
    init_opts(&opts[4], 'd', false, OPTION_ARG_TYPE_FLG,
1605 
              (void **)&dumbterminal, (bool *)0, "dumb terminal: no clever edits");
1606 
 
1607 
    // First look to see if we are setting or getting a single option
1608 
    // by just quoting its nickname
1609 
    if ( (2 == argc && '-' != argv[1][0]) ||
1610 
         (3 == argc && '-' != argv[1][0] && '-' != argv[2][0])) {
1611 
        // then the command was "fconfig foo [value]"
1612 
        onlyone = argv[1];
1613 
        onevalue = (3 == argc) ? argv[2] : NULL;
1614 
        list_opt = LIST_OPT_NICKNAMES;
1615 
    }
1616 
    // Next see if we are setting or getting a single option with a dumb
1617 
    // terminal invoked, ie. no line editing.
1618 
    else if (3 == argc &&
1619 
             '-' == argv[1][0] && 'd' == argv[1][1] && 0 == argv[1][2] &&
1620 
             '-' != argv[2][0]) {
1621 
        // then the command was "fconfig -d foo"
1622 
        onlyone = argv[2];
1623 
        onevalue = NULL;
1624 
        list_opt = LIST_OPT_NICKNAMES | LIST_OPT_DUMBTERM;
1625 
    }
1626 
    else {
1627 
        if (!scan_opts(argc, argv, 1, opts, 5, 0, 0, ""))
1628 
            return;
1629 
        list_opt |= list_only ? LIST_OPT_LIST_ONLY : 0;
1630 
        list_opt |= nicknames ? LIST_OPT_NICKNAMES : LIST_OPT_FULLNAMES;
1631 
        list_opt |= fullnames ? LIST_OPT_FULLNAMES : 0;
1632 
        list_opt |= dumbterminal ? LIST_OPT_DUMBTERM : 0;
1633 
    }
1634 
 
1635 
    if (init && verify_action("Initialize non-volatile configuration")) {
1636 
        config_init();
1637 
        need_update = true;
1638 
    }
1639 
 
1640 
    dp = &config->config_data[0];
1641 
    while (dp < &config->config_data[sizeof(config->config_data)]) {
1642 
        if (CONFIG_OBJECT_TYPE(dp) == CONFIG_EMPTY) {
1643 
            break;
1644 
        }
1645 
        len = 4 + CONFIG_OBJECT_KEYLEN(dp) + CONFIG_OBJECT_ENABLE_KEYLEN(dp) +
1646 
            config_length(CONFIG_OBJECT_TYPE(dp));
1647 
        // Provide a title for well known [i.e. builtin] objects
1648 
        title = (char *)NULL;
1649 
        opt = __CONFIG_options_TAB__;
1650 
        while (opt != optend) {
1651 
            if (strcmp(opt->key, CONFIG_OBJECT_KEY(dp)) == 0) {
1652 
                title = opt->title;
1653 
                break;
1654 
            }
1655 
            opt++;
1656 
        }
1657 
        if ( onlyone && 0 != strcmp(CONFIG_OBJECT_KEY(dp), onlyone) )
1658 
            ret = CONFIG_OK; // skip this entry
1659 
        else {
1660 
            doneone = true;
1661 
            ret = get_config(dp, title, list_opt, onevalue); // do this opt
1662 
        }
1663 
        switch (ret) {
1664 
        case CONFIG_DONE:
1665 
            goto done;
1666 
        case CONFIG_ABORT:
1667 
            memcpy(config, backup_config, sizeof(struct _config));
1668 
            return;
1669 
        case CONFIG_CHANGED:
1670 
            need_update = true;
1671 
        case CONFIG_OK:
1672 
            dp += len;
1673 
            break;
1674 
        case CONFIG_BACK:
1675 
            dp = &config->config_data[0];
1676 
            continue;
1677 
        case CONFIG_BAD:
1678 
            // Nothing - make him do it again
1679 
            diag_printf ("** invalid entry\n");
1680 
            onevalue = NULL; // request a good value be typed in - or abort/whatever
1681 
        }
1682 
    }
1683 
 
1684 
 done:
1685 
    if (NULL != onlyone && !doneone) {
1686 
#ifdef CYGSEM_REDBOOT_ALLOW_DYNAMIC_FLASH_CONFIG_DATA
1687 
        if (verify_action("** entry '%s' not found - add", onlyone)) {
1688 
            struct config_option opt;
1689 
            diag_printf("Trying to add value\n");
1690 
        }
1691 
#else
1692 
        diag_printf("** entry '%s' not found", onlyone);
1693 
#endif
1694 
    }
1695 
    if (!need_update)
1696 
        return;
1697 
    flash_write_config();
1698 
}
1699 
 
1700 
 
1701 
#ifdef CYGSEM_REDBOOT_FLASH_ALIASES
1702 
static cmd_fun do_alias;
1703 
RedBoot_cmd("alias",
1704 
            "Manage aliases kept in FLASH memory",
1705 
            "name [value]",
1706 
            do_alias
1707 
    );
1708 
 
1709 
static void
1710 
make_alias(char *alias, char *name)
1711 
{
1712 
    diag_sprintf(alias, "alias/%s", name);
1713 
}
1714 
 
1715 
static void
1716 
do_alias(int argc, char *argv[])
1717 
{
1718 
    char name[80];
1719 
    char *val;
1720 
    struct config_option opt;
1721 
 
1722 
    switch (argc) {
1723 
    case 2:
1724 
        make_alias(name, argv[1]);
1725 
        if (flash_get_config(name, &val, CONFIG_STRING)) {
1726 
            diag_printf("'%s' = '%s'\n", argv[1], val);
1727 
        } else {
1728 
            diag_printf("'%s' not found\n", argv[1]);
1729 
        }
1730 
        break;
1731 
    case 3:
1732 
        if (strlen(argv[2]) >= MAX_STRING_LENGTH) {
1733 
            diag_printf("Sorry, value is too long\n");
1734 
            break;
1735 
        }
1736 
        make_alias(name, argv[1]);
1737 
        opt.type = CONFIG_STRING;
1738 
        opt.enable = (char *)0;
1739 
        opt.enable_sense = 1;
1740 
        opt.key = name;
1741 
        opt.dflt = (CYG_ADDRESS)argv[2];
1742 
        flash_add_config(&opt, true);
1743 
        break;
1744 
    default:
1745 
        diag_printf("usage: alias name [value]\n");
1746 
    }
1747 
}
1748 
 
1749 
// Lookup an alias. First try plain string aliases. If that fails try
1750 
// other types so allowing access to all configured values. This allows
1751 
// for alias (macro) expansion of normal 'fconfig' data, such as the
1752 
// board IP address.
1753 
char *
1754 
flash_lookup_alias(char *alias, char *alias_buf)
1755 
{
1756 
    char name[80];
1757 
    char *val;
1758 
    unsigned char * dp;
1759 
    void *val_ptr;
1760 
    int type;
1761 
    bool hold_bool_val;
1762 
    long hold_long_val;
1763 
#ifdef CYGPKG_REDBOOT_NETWORKING
1764 
    int esa_ptr;
1765 
#endif
1766 
 
1767 
    make_alias(name, alias);
1768 
    if (flash_get_config(name, &val, CONFIG_STRING)) {
1769 
        return val;
1770 
    } else {
1771 
        dp = flash_lookup_config(alias);
1772 
        if (dp) {
1773 
            val_ptr = (void *)CONFIG_OBJECT_VALUE(dp);
1774 
            switch (type = CONFIG_OBJECT_TYPE(dp)) {
1775 
            case CONFIG_BOOL:
1776 
                memcpy(&hold_bool_val, val_ptr, sizeof(bool));
1777 
                diag_sprintf(alias_buf, "%s", hold_bool_val ? "true" : "false");
1778 
                break;
1779 
            case CONFIG_INT:
1780 
                memcpy(&hold_long_val, val_ptr, sizeof(unsigned long));
1781 
                diag_sprintf(alias_buf,"%ld", hold_long_val);
1782 
                break;
1783 
#ifdef CYGPKG_REDBOOT_NETWORKING
1784 
            case CONFIG_IP:
1785 
                diag_sprintf(alias_buf,"%s", inet_ntoa((in_addr_t *)val_ptr));
1786 
                break;
1787 
            case CONFIG_ESA:
1788 
                for (esa_ptr = 0;  esa_ptr < sizeof(enet_addr_t);  esa_ptr++) {
1789 
                    diag_sprintf(alias_buf+(3*esa_ptr), "0x%02X", ((unsigned char *)val_ptr)[esa_ptr]);
1790 
                    if (esa_ptr < (sizeof(enet_addr_t)-1)) diag_printf(":");
1791 
                }
1792 
                break;
1793 
#endif
1794 
            case CONFIG_SCRIPT:
1795 
                return (char *) val_ptr;
1796 
                break;
1797 
            default:
1798 
                return (char *)NULL;
1799 
            }
1800 
            return alias_buf;
1801 
        }
1802 
        return (char *)NULL;
1803 
    }
1804 
}
1805 
 
1806 
#endif //  CYGSEM_REDBOOT_FLASH_ALIASES
1807 
 
1808 
//
1809 
// Write the in-memory copy of the configuration data to the flash device.
1810 
//
1811 
void
1812 
flash_write_config(void)
1813 
{
1814 
#ifndef CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
1815 
    int stat;
1816 
    void *err_addr;
1817 
#endif
1818 
 
1819 
    config->len = sizeof(struct _config);
1820 
    config->key1 = CONFIG_KEY1;
1821 
    config->key2 = CONFIG_KEY2;
1822 
    config->cksum = cyg_crc32((unsigned char *)config, sizeof(struct _config)-sizeof(config->cksum));
1823 
    if (verify_action("Update RedBoot non-volatile configuration")) {
1824 
#ifdef CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
1825 
        memcpy(fis_work_block, fis_addr, fisdir_size);
1826 
        fis_update_directory();
1827 
#else //  CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
1828 
#ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL
1829 
        // Insure [quietly] that the config page is unlocked before trying to update
1830 
        flash_unlock((void *)cfg_base, cfg_size, (void **)&err_addr);
1831 
#endif
1832 
        if ((stat = flash_erase(cfg_base, cfg_size, (void **)&err_addr)) != 0) {
1833 
            diag_printf("   initialization failed at %p: %s\n", err_addr, flash_errmsg(stat));
1834 
        } else {
1835 
            if ((stat = flash_program(cfg_base, (void *)config, sizeof(struct _config),
1836 
                                      (void **)&err_addr)) != 0) {
1837 
                diag_printf("Error writing config data at %p: %s\n",
1838 
                            err_addr, flash_errmsg(stat));
1839 
            }
1840 
        }
1841 
#ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL
1842 
        // Insure [quietly] that the config data is locked after the update
1843 
        flash_lock((void *)cfg_base, cfg_size, (void **)&err_addr);
1844 
#endif
1845 
#endif
1846 
    }
1847 
}
1848 
 
1849 
//
1850 
// Find the configuration entry for a particular key
1851 
//
1852 
static unsigned char *
1853 
flash_lookup_config(char *key)
1854 
{
1855 
    unsigned char *dp;
1856 
    int len;
1857 
 
1858 
    if (!config_ok) return (unsigned char *)NULL;
1859 
 
1860 
    dp = &config->config_data[0];
1861 
    while (dp < &config->config_data[sizeof(config->config_data)]) {
1862 
        len = 4 + CONFIG_OBJECT_KEYLEN(dp) + CONFIG_OBJECT_ENABLE_KEYLEN(dp) +
1863 
            config_length(CONFIG_OBJECT_TYPE(dp));
1864 
        if (strcmp(key, CONFIG_OBJECT_KEY(dp)) == 0) {
1865 
            return dp;
1866 
        }
1867 
        dp += len;
1868 
    }
1869 
//    diag_printf("Can't find config data for '%s'\n", key);
1870 
    return false;
1871 
}
1872 
 
1873 
//
1874 
// Retrieve a data object from the data base (in memory copy)
1875 
//
1876 
bool
1877 
flash_get_config(char *key, void *val, int type)
1878 
{
1879 
    unsigned char *dp;
1880 
    void *val_ptr;
1881 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG_READONLY_FALLBACK
1882 
    struct _config *save_config = 0;
1883 
#endif
1884 
 
1885 
    if (!config_ok) return false;
1886 
 
1887 
    if ((dp = flash_lookup_config(key)) != (unsigned char *)NULL) {
1888 
        if (CONFIG_OBJECT_TYPE(dp) == type) {
1889 
            val_ptr = (void *)CONFIG_OBJECT_VALUE(dp);
1890 
            switch (type) {
1891 
                // Note: the data may be unaligned in the configuration data
1892 
            case CONFIG_BOOL:
1893 
                memcpy(val, val_ptr, sizeof(bool));
1894 
                break;
1895 
            case CONFIG_INT:
1896 
                memcpy(val, val_ptr, sizeof(unsigned long));
1897 
                break;
1898 
#ifdef CYGPKG_REDBOOT_NETWORKING
1899 
            case CONFIG_IP:
1900 
                memcpy(val, val_ptr, sizeof(in_addr_t));
1901 
                break;
1902 
            case CONFIG_ESA:
1903 
                memcpy(val, val_ptr, sizeof(enet_addr_t));
1904 
                break;
1905 
#endif
1906 
            case CONFIG_STRING:
1907 
            case CONFIG_SCRIPT:
1908 
                // Just return a pointer to the script/line
1909 
                *(unsigned char **)val = (unsigned char *)val_ptr;
1910 
                break;
1911 
            }
1912 
        } else {
1913 
            diag_printf("Request for config value '%s' - wrong type\n", key);
1914 
        }
1915 
        return true;
1916 
    }
1917 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG_READONLY_FALLBACK
1918 
    // Did not find key. Is configuration data valid?
1919 
    // Check to see if the config data is valid, if not, revert to
1920 
    // readonly mode, by setting config to readonly_config.  We
1921 
    // will set it back before we leave this function.
1922 
    if ( (config != readonly_config) && ((cyg_crc32((unsigned char *)config,
1923 
               sizeof(struct _config)-sizeof(config->cksum)) != config->cksum) ||
1924 
        (config->key1 != CONFIG_KEY1)|| (config->key2 != CONFIG_KEY2))) {
1925 
        save_config = config;
1926 
        config = readonly_config;
1927 
        if ((cyg_crc32((unsigned char *)config,
1928 
                       sizeof(struct _config)-sizeof(config->cksum)) != config->cksum) ||
1929 
            (config->key1 != CONFIG_KEY1)|| (config->key2 != CONFIG_KEY2)) {
1930 
            diag_printf("FLASH configuration checksum error or invalid key\n");
1931 
            config = save_config;
1932 
            return false;
1933 
        }
1934 
        else{
1935 
            diag_printf("Getting config information in READONLY mode\n");
1936 
            return flash_get_config(key, val, type);
1937 
        }
1938 
    }
1939 
#endif
1940 
    return false;
1941 
}
1942 
 
1943 
//
1944 
// Copy data into the config area
1945 
//
1946 
static void
1947 
flash_config_insert_value(unsigned char *dp, struct config_option *opt)
1948 
{
1949 
    switch (opt->type) {
1950 
        // Note: the data may be unaligned in the configuration data
1951 
    case CONFIG_BOOL:
1952 
        memcpy(dp, (void *)&opt->dflt, sizeof(bool));
1953 
        break;
1954 
    case CONFIG_INT:
1955 
        memcpy(dp, (void *)&opt->dflt, sizeof(unsigned long));
1956 
        break;
1957 
#ifdef CYGPKG_REDBOOT_NETWORKING
1958 
    case CONFIG_IP:
1959 
        memcpy(dp, (void *)&opt->dflt, sizeof(in_addr_t));
1960 
        break;
1961 
    case CONFIG_ESA:
1962 
        memcpy(dp, (void *)&opt->dflt, sizeof(enet_addr_t));
1963 
        break;
1964 
#endif
1965 
    case CONFIG_STRING:
1966 
        memcpy(dp, (void *)opt->dflt, config_length(CONFIG_STRING));
1967 
        break;
1968 
    case CONFIG_SCRIPT:
1969 
        break;
1970 
    }
1971 
}
1972 
 
1973 
//
1974 
// Add a new option to the database
1975 
//
1976 
bool
1977 
flash_add_config(struct config_option *opt, bool update)
1978 
{
1979 
    unsigned char *dp, *kp;
1980 
    int len, elen, size;
1981 
 
1982 
    // If data item is already present, just update it
1983 
    // Note: only the data value can be thusly changed
1984 
    if ((dp = flash_lookup_config(opt->key)) != (unsigned char *)NULL) {
1985 
        flash_config_insert_value(CONFIG_OBJECT_VALUE(dp), opt);
1986 
        if (update) {
1987 
            flash_write_config();
1988 
        }
1989 
        return true;
1990 
    }
1991 
    // Add the data item
1992 
    dp = &config->config_data[0];
1993 
    size = 0;
1994 
    while (size < sizeof(config->config_data)) {
1995 
        if (CONFIG_OBJECT_TYPE(dp) == CONFIG_EMPTY) {
1996 
            kp = opt->key;
1997 
            len = strlen(kp) + 1;
1998 
            size += len + 2 + 2 + config_length(opt->type);
1999 
            if (opt->enable) {
2000 
                elen = strlen(opt->enable) + 1;
2001 
                size += elen;
2002 
            } else {
2003 
                elen = 0;
2004 
            }
2005 
            if (size > sizeof(config->config_data)) {
2006 
                break;
2007 
            }
2008 
            CONFIG_OBJECT_TYPE(dp) = opt->type;
2009 
            CONFIG_OBJECT_KEYLEN(dp) = len;
2010 
            CONFIG_OBJECT_ENABLE_SENSE(dp) = opt->enable_sense;
2011 
            CONFIG_OBJECT_ENABLE_KEYLEN(dp) = elen;
2012 
            dp = CONFIG_OBJECT_KEY(dp);
2013 
            while (*kp) *dp++ += *kp++;
2014 
            *dp++ = '\0';
2015 
            if (elen) {
2016 
                kp = opt->enable;
2017 
                while (*kp) *dp++ += *kp++;
2018 
                *dp++ = '\0';
2019 
            }
2020 
            flash_config_insert_value(dp, opt);
2021 
            if (update) {
2022 
                flash_write_config();
2023 
            }
2024 
            return true;
2025 
        } else {
2026 
            len = 4 + CONFIG_OBJECT_KEYLEN(dp) + CONFIG_OBJECT_ENABLE_KEYLEN(dp) +
2027 
                config_length(CONFIG_OBJECT_TYPE(dp));
2028 
            dp += len;
2029 
            size += len;
2030 
        }
2031 
    }
2032 
    diag_printf("No space to add '%s'\n", opt->key);
2033 
    return false;
2034 
}
2035 
 
2036 
//
2037 
// Reset/initialize configuration data - used only when starting from scratch
2038 
//
2039 
static void
2040 
config_init(void)
2041 
{
2042 
    // Well known option strings
2043 
    struct config_option *optend = __CONFIG_options_TAB_END__;
2044 
    struct config_option *opt = __CONFIG_options_TAB__;
2045 
 
2046 
    memset(config, 0, sizeof(struct _config));
2047 
    while (opt != optend) {
2048 
        if (!flash_add_config(opt, false)) {
2049 
            return;
2050 
        }
2051 
        opt++;
2052 
    }
2053 
    config_ok = true;
2054 
}
2055 
 
2056 
//
2057 
// Attempt to get configuration information from the FLASH.
2058 
// If available (i.e. good checksum, etc), initialize "known"
2059 
// values for later use.
2060 
//
2061 
static void
2062 
load_flash_config(void)
2063 
{
2064 
    bool use_boot_script;
2065 
 
2066 
    config_ok = false;
2067 
    script = (unsigned char *)0;
2068 
    if (!do_flash_init()) return;
2069 
    config = (struct _config *)(workspace_end-sizeof(struct _config));
2070 
    backup_config = (struct _config *)((CYG_ADDRESS)config-sizeof(struct _config));
2071 
    workspace_end = (unsigned char *)backup_config;
2072 
    cfg_size = (flash_block_size > sizeof(struct _config)) ?
2073 
        sizeof(struct _config) :
2074 
        _rup(sizeof(struct _config), flash_block_size);
2075 
#ifdef CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG
2076 
    cfg_size = _rup(cfg_size, sizeof(struct fis_image_desc));
2077 
    if ((flash_block_size-cfg_size) < 8*sizeof(struct fis_image_desc)) {
2078 
        // Too bad this can't be checked at compile/build time
2079 
        diag_printf("Sorry, FLASH config exceeds available space in FIS directory\n");
2080 
        return;
2081 
    }
2082 
    fisdir_size = flash_block_size - cfg_size;
2083 
    cfg_base = (void *)(((CYG_ADDRESS)fis_addr + flash_block_size) - cfg_size);
2084 
#else
2085 
    if (CYGNUM_REDBOOT_FLASH_CONFIG_BLOCK < 0) {
2086 
        cfg_base = (void *)((CYG_ADDRESS)flash_end + 1 -
2087 
           _rup(_rup((-CYGNUM_REDBOOT_FLASH_CONFIG_BLOCK*flash_block_size), cfg_size), flash_block_size));
2088 
    } else {
2089 
        cfg_base = (void *)((CYG_ADDRESS)flash_start +
2090 
           _rup(_rup((CYGNUM_REDBOOT_FLASH_CONFIG_BLOCK*flash_block_size), cfg_size), flash_block_size));
2091 
    }
2092 
#endif
2093 
#ifdef CYGSEM_REDBOOT_FLASH_CONFIG_READONLY_FALLBACK
2094 
    readonly_config = cfg_base;
2095 
#endif
2096 
    memcpy(config, cfg_base, sizeof(struct _config));
2097 
    if ((cyg_crc32((unsigned char *)config,
2098 
                   sizeof(struct _config)-sizeof(config->cksum)) != config->cksum) ||
2099 
        (config->key1 != CONFIG_KEY1)|| (config->key2 != CONFIG_KEY2)) {
2100 
        diag_printf("FLASH configuration checksum error or invalid key\n");
2101 
        config_init();
2102 
        return;
2103 
    }
2104 
    config_ok = true;
2105 
    flash_get_config("boot_script", &use_boot_script, CONFIG_BOOL);
2106 
    if (use_boot_script) {
2107 
        flash_get_config("boot_script_data", &script, CONFIG_SCRIPT);
2108 
        flash_get_config("boot_script_timeout", &script_timeout, CONFIG_INT);
2109 
    }
2110 
#ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
2111 
    if (flash_get_config("console_baud_rate", &console_baud_rate, CONFIG_INT)) {
2112 
        extern int set_console_baud_rate(int);
2113 
        set_console_baud_rate(console_baud_rate);
2114 
    }
2115 
#endif
2116 
}
2117 
 
2118 
RedBoot_init(load_flash_config, RedBoot_INIT_FIRST);
2119 
 
2120 
#endif // CYGSEM_REDBOOT_FLASH_CONFIG
2121 
 
2122 
// EOF flash.c

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