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comparison loadtools/flerase.c @ 668:cd48bc4c5460

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fc-loadtool code: erase command split out into flerase.c
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 08 Mar 2020 00:29:11 +0000
parents loadtools/flmisc.c@4be92bcd1535
children ba9523ca6ed8
comparison
equal deleted inserted replaced
667:2772cf8435b4 668:cd48bc4c5460
1 /*
2 * Flash erase operations are implemented here
3 */
4
5 #include <sys/types.h>
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <string.h>
9 #include <strings.h>
10 #include <stdlib.h>
11 #include <time.h>
12 #include "flash.h"
13
14 extern struct flash_bank_info flash_bank_info[2];
15
16 flashcmd_erase(argc, argv, bank)
17 char **argv;
18 {
19 struct flash_bank_info *bi;
20 u_long offset, len;
21 char *strtoul_endp;
22 struct sector_info *startsec, *endsec, *sp;
23 int stat;
24 time_t start_time, finish_time;
25 unsigned duration, mm, ss;
26
27 if (argc != 4) {
28 inv: fprintf(stderr, "usage: %s %s hex-start-offset hex-length\n",
29 argv[0], argv[1]);
30 return(-1);
31 }
32 offset = strtoul(argv[2], &strtoul_endp, 16);
33 if (*strtoul_endp)
34 goto inv;
35 if (flash_detect(bank, 0) < 0)
36 return(-1);
37 bi = flash_bank_info + bank;
38 if (offset >= bi->geom->total_size) {
39 fprintf(stderr,
40 "error: specified offset exceeds flash bank size (0x%lx)\n",
41 (u_long) bi->geom->total_size);
42 return(-1);
43 }
44 len = strtoul(argv[3], &strtoul_endp, 16);
45 if (*strtoul_endp)
46 goto inv;
47 if (len > bi->geom->total_size - offset) {
48 fprintf(stderr,
49 "error: specified offset+length exceed flash bank size (0x%lx)\n",
50 (u_long) bi->geom->total_size);
51 return(-1);
52 }
53 if (!len) {
54 printf("Zero length specified - nothing to do!\n");
55 return(0);
56 }
57 /* now enforce sector alignment for both offset and length */
58 if (get_flash_sector_table(bank) < 0)
59 return(-1);
60 if (get_flash_sector_range(bi, offset, len, &startsec, &endsec) < 0)
61 return(-1);
62 printf("Erasing %d sector(s)\n", endsec - startsec);
63 time(&start_time);
64 for (sp = startsec; sp < endsec; sp++) {
65 stat = bi->ops->erase_sector(bi, sp);
66 if (stat)
67 return(stat);
68 putchar('.');
69 fflush(stdout);
70 }
71 time(&finish_time);
72 putchar('\n');
73 duration = finish_time - start_time;
74 mm = duration / 60;
75 ss = duration - mm * 60;
76 printf("Operation completed in %um%us\n", mm, ss);
77 return(0);
78 }