diff options
author | Clifford Wolf <clifford@clifford.at> | 2018-01-02 17:12:44 +0100 |
---|---|---|
committer | Clifford Wolf <clifford@clifford.at> | 2018-01-02 17:12:44 +0100 |
commit | bca8c3c88f5707213a6cc55ec7b06b576ab98809 (patch) | |
tree | 2bb4e841c7ea7f34a7e0785b4b25eec4325d75fc /iceprog | |
parent | 8e51d4f918ba65ee70a4c720011e007428b5deca (diff) | |
download | icestorm-bca8c3c88f5707213a6cc55ec7b06b576ab98809.tar.gz icestorm-bca8c3c88f5707213a6cc55ec7b06b576ab98809.tar.bz2 icestorm-bca8c3c88f5707213a6cc55ec7b06b576ab98809.zip |
Add "iceprog -e"
Diffstat (limited to 'iceprog')
-rw-r--r-- | iceprog/iceprog.c | 62 |
1 files changed, 42 insertions, 20 deletions
diff --git a/iceprog/iceprog.c b/iceprog/iceprog.c index 27f3589..4a634c5 100644 --- a/iceprog/iceprog.c +++ b/iceprog/iceprog.c @@ -315,6 +315,7 @@ static void help(const char *progname) fprintf(stderr, " This means that some data after the written data (or\n"); fprintf(stderr, " even before when -o is used) may be erased as well.\n"); fprintf(stderr, " -b bulk erase entire flash before writing\n"); + fprintf(stderr, " -e <size in bytes> erase flash as if we were writing that number of bytes\n"); fprintf(stderr, " -n do not erase flash before writing\n"); fprintf(stderr, "\n"); fprintf(stderr, "Miscellaneous options:\n"); @@ -354,10 +355,12 @@ int main(int argc, char **argv) my_name = argv[0] + i + 1; int read_size = 256 * 1024; + int erase_size = 0; int rw_offset = 0; bool read_mode = false; bool check_mode = false; + bool erase_mode = false; bool bulk_erase = false; bool dont_erase = false; bool prog_sram = false; @@ -373,7 +376,7 @@ int main(int argc, char **argv) int opt; char *endptr; - while ((opt = getopt_long(argc, argv, "d:I:rR:o:cbnStv", long_options, NULL)) != -1) { + while ((opt = getopt_long(argc, argv, "d:I:rR:e:o:cbnStv", long_options, NULL)) != -1) { switch (opt) { case 'd': devstr = optarg; @@ -409,6 +412,20 @@ int main(int argc, char **argv) return EXIT_FAILURE; } break; + case 'e': + erase_mode = true; + erase_size = strtol(optarg, &endptr, 0); + if (*endptr == '\0') + /* ok */; + else if (!strcmp(endptr, "k")) + erase_size *= 1024; + else if (!strcmp(endptr, "M")) + erase_size *= 1024 * 1024; + else { + fprintf(stderr, "%s: `%s' is not a valid size\n", my_name, optarg); + return EXIT_FAILURE; + } + break; case 'o': rw_offset = strtol(optarg, &endptr, 0); if (*endptr == '\0') @@ -450,8 +467,8 @@ int main(int argc, char **argv) } } - if (read_mode + check_mode + prog_sram + test_mode > 1) { - fprintf(stderr, "%s: options `-r'/`-R', `-c', `-S', and `-t' are mutually exclusive\n", my_name); + if (read_mode + erase_mode + check_mode + prog_sram + test_mode > 1) { + fprintf(stderr, "%s: options `-r'/`-R', `-e`, `-c', `-S', and `-t' are mutually exclusive\n", my_name); return EXIT_FAILURE; } @@ -493,7 +510,7 @@ int main(int argc, char **argv) return EXIT_FAILURE; } else if (bulk_erase) { filename = "/dev/null"; - } else if (!test_mode) { + } else if (!test_mode && !erase_mode) { fprintf(stderr, "%s: missing argument\n", my_name); fprintf(stderr, "Try `%s --help' for more information.\n", argv[0]); return EXIT_FAILURE; @@ -505,9 +522,11 @@ int main(int argc, char **argv) FILE *f = NULL; long file_size = -1; - if (test_mode) + if (test_mode) { /* nop */; - else if (read_mode) { + } else if (erase_mode) { + file_size = erase_size; + } else if (read_mode) { f = (strcmp(filename, "-") == 0) ? stdout : fopen(filename, "wb"); if (f == NULL) { fprintf(stderr, "%s: can't open '%s' for writing: ", my_name, filename); @@ -751,21 +770,24 @@ int main(int argc, char **argv) } } - fprintf(stderr, "programming..\n"); + if (!erase_mode) + { + fprintf(stderr, "programming..\n"); + + for (int rc, addr = 0; true; addr += rc) { + uint8_t buffer[256]; + int page_size = 256 - (rw_offset + addr) % 256; + rc = fread(buffer, 1, page_size, f); + if (rc <= 0) + break; + flash_write_enable(); + flash_prog(rw_offset + addr, buffer, rc); + flash_wait(); + } - for (int rc, addr = 0; true; addr += rc) { - uint8_t buffer[256]; - int page_size = 256 - (rw_offset + addr) % 256; - rc = fread(buffer, 1, page_size, f); - if (rc <= 0) - break; - flash_write_enable(); - flash_prog(rw_offset + addr, buffer, rc); - flash_wait(); + /* seek to the beginning for second pass */ + fseek(f, 0, SEEK_SET); } - - /* seek to the beginning for second pass */ - fseek(f, 0, SEEK_SET); } // --------------------------------------------------------- @@ -779,7 +801,7 @@ int main(int argc, char **argv) flash_read(rw_offset + addr, buffer, 256); fwrite(buffer, read_size - addr > 256 ? 256 : read_size - addr, 1, f); } - } else { + } else if (!erase_mode) { fprintf(stderr, "reading..\n"); for (int addr = 0; true; addr += 256) { uint8_t buffer_flash[256], buffer_file[256]; |