flash_eraseall: shrink
function old new delta flash_eraseall_main 1044 1006 -38
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02468c2063
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962e3656f6
@ -16,9 +16,8 @@
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#define OPTION_J (1 << 0)
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#define OPTION_Q (1 << 1)
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#define _bitNAND (2)
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#define isNAND (1 << _bitNAND)
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#define bbtest (1 << 3)
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#define IS_NAND (1 << 2)
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#define BBTEST (1 << 3)
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struct globals {
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/* This is used in the cpu_to_je/je_to_cpu macros in jffs2_user.h */
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@ -42,7 +41,7 @@ static uint32_t crc32(uint32_t val, const void *ss, int len,
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static void show_progress(mtd_info_t *meminfo, erase_info_t *erase)
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{
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printf("\rErasing %d Kibyte @ %x -- %2llu %% complete.",
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meminfo->erasesize / 1024, erase->start,
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(unsigned)meminfo->erasesize / 1024, erase->start,
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(unsigned long long) erase->start * 100 / meminfo->size);
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fflush(stdout);
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}
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@ -52,7 +51,7 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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{
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struct jffs2_unknown_node cleanmarker;
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mtd_info_t meminfo;
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int fd, clmpos = 0, clmlen = 8;
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int fd, clmpos, clmlen;
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erase_info_t erase;
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struct stat st;
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unsigned int flags;
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@ -60,9 +59,9 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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INIT_G();
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opt_complementary = "=1";
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flags = getopt32(argv, "jq");
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flags = BBTEST | getopt32(argv, "jq");
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mtd_name = *(argv + optind);
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mtd_name = argv[optind];
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xstat(mtd_name, &st);
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if (!S_ISCHR(st.st_mode))
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bb_error_msg_and_die("%s: not a char device", mtd_name);
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@ -70,19 +69,21 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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fd = xopen(mtd_name, O_RDWR);
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xioctl(fd, MEMGETINFO, &meminfo);
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erase.length = meminfo.erasesize;
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flags |= bbtest | ((meminfo.type == MTD_NANDFLASH) << _bitNAND);
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if (meminfo.type == MTD_NANDFLASH)
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flags |= IS_NAND;
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clmpos = 0;
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clmlen = 8;
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if (flags & OPTION_J) {
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uint32_t *crc32_table;
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crc32_table = crc32_filltable(NULL, 0);
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cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
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cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
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if (!(flags & isNAND))
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cleanmarker.totlen = cpu_to_je32 (sizeof (struct jffs2_unknown_node));
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cleanmarker.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
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cleanmarker.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
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if (!(flags & IS_NAND))
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cleanmarker.totlen = cpu_to_je32(sizeof(struct jffs2_unknown_node));
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else {
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struct nand_oobinfo oobinfo;
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@ -91,13 +92,12 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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/* Check for autoplacement */
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if (oobinfo.useecc == MTD_NANDECC_AUTOPLACE) {
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/* Get the position of the free bytes */
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if (!oobinfo.oobfree[0][1])
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bb_error_msg_and_die("Autoplacement selected and no empty space in oob");
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clmpos = oobinfo.oobfree[0][0];
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clmlen = oobinfo.oobfree[0][1];
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if (clmlen > 8)
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clmlen = 8;
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if (clmlen == 0)
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bb_error_msg_and_die("Autoplacement selected and no empty space in oob");
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} else {
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/* Legacy mode */
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switch (meminfo.oobsize) {
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@ -107,24 +107,27 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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break;
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case 16:
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clmpos = 8;
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clmlen = 8;
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/*clmlen = 8;*/
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break;
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case 64:
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clmpos = 16;
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clmlen = 8;
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/*clmlen = 8;*/
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break;
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}
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}
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cleanmarker.totlen = cpu_to_je32(8);
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}
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cleanmarker.hdr_crc = cpu_to_je32(crc32(0, &cleanmarker, sizeof(struct jffs2_unknown_node) - 4,
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cleanmarker.hdr_crc = cpu_to_je32(crc32(0, &cleanmarker, sizeof(struct jffs2_unknown_node) - 4,
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crc32_table));
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}
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/* Don't want to destroy progress indicator by bb_error_msg's */
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applet_name = xasprintf("\n%s: %s", applet_name, mtd_name);
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for (erase.start = 0; erase.start < meminfo.size;
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erase.start += meminfo.erasesize) {
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if (flags & bbtest) {
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if (flags & BBTEST) {
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int ret;
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loff_t offset = erase.start;
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@ -133,18 +136,17 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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if (!(flags & OPTION_Q))
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bb_info_msg("\nSkipping bad block at 0x%08x", erase.start);
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continue;
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} else if (ret < 0) {
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}
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if (ret < 0) {
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/* Black block table is not available on certain flash
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* types e.g. NOR
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*/
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if (errno == EOPNOTSUPP) {
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flags =~ bbtest;
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if (flags & isNAND)
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bb_error_msg_and_die("%s: Bad block check not available",
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mtd_name);
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flags = ~BBTEST;
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if (flags & IS_NAND)
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bb_error_msg_and_die("bad block check not available");
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} else {
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bb_perror_msg_and_die("\n%s: MTD %s failure",
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mtd_name, "get bad block ");
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bb_perror_msg_and_die("MEMGETBADBLOCK error");
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}
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}
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}
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@ -159,22 +161,24 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
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continue;
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/* write cleanmarker */
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if (flags & isNAND) {
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if (flags & IS_NAND) {
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struct mtd_oob_buf oob;
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oob.ptr = (unsigned char *) &cleanmarker;
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oob.start = erase.start + clmpos;
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oob.length = clmlen;
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xioctl (fd, MEMWRITEOOB, &oob);
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xioctl(fd, MEMWRITEOOB, &oob);
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} else {
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if (lseek (fd, erase.start, SEEK_SET) < 0) {
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bb_perror_msg("\n%s: MTD %s failure", mtd_name, "seek");
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xlseek(fd, erase.start, SEEK_SET);
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/* if (lseek(fd, erase.start, SEEK_SET) < 0) {
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bb_perror_msg("MTD %s failure", "seek");
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continue;
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}
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if (write (fd , &cleanmarker, sizeof (cleanmarker)) != sizeof (cleanmarker)) {
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bb_perror_msg("\n%s: MTD %s failure", mtd_name, "write");
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} */
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xwrite(fd, &cleanmarker, sizeof(cleanmarker));
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/* if (write(fd, &cleanmarker, sizeof(cleanmarker)) != sizeof(cleanmarker)) {
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bb_perror_msg("MTD %s failure", "write");
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continue;
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}
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} */
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}
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if (!(flags & OPTION_Q))
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printf(" Cleanmarker written at %x.", erase.start);
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