[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/miscutils/flash_eraseall.c b/ap/app/busybox/src/miscutils/flash_eraseall.c
new file mode 100644
index 0000000..0598371
--- /dev/null
+++ b/ap/app/busybox/src/miscutils/flash_eraseall.c
@@ -0,0 +1,206 @@
+/* vi: set sw=4 ts=4: */
+/* eraseall.c -- erase the whole of a MTD device
+ *
+ * Ported to busybox from mtd-utils.
+ *
+ * Copyright (C) 2000 Arcom Control System Ltd
+ *
+ * Renamed to flash_eraseall.c
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+//usage:#define flash_eraseall_trivial_usage
+//usage: "[-jq] MTD_DEVICE"
+//usage:#define flash_eraseall_full_usage "\n\n"
+//usage: "Erase an MTD device\n"
+//usage: "\n -j Format the device for jffs2"
+//usage: "\n -q Don't display progress messages"
+
+#include "libbb.h"
+#include <mtd/mtd-user.h>
+#include <linux/jffs2.h>
+
+#define OPTION_J (1 << 0)
+#define OPTION_Q (1 << 1)
+#define IS_NAND (1 << 2)
+#define BBTEST (1 << 3)
+
+/* mtd/jffs2-user.h used to have this atrocity:
+extern int target_endian;
+
+#define t16(x) ({ __u16 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
+#define t32(x) ({ __u32 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
+
+#define cpu_to_je16(x) ((jint16_t){t16(x)})
+#define cpu_to_je32(x) ((jint32_t){t32(x)})
+#define cpu_to_jemode(x) ((jmode_t){t32(x)})
+
+#define je16_to_cpu(x) (t16((x).v16))
+#define je32_to_cpu(x) (t32((x).v32))
+#define jemode_to_cpu(x) (t32((x).m))
+
+but mtd/jffs2-user.h is gone now (at least 2.6.31.6 does not have it anymore)
+*/
+
+/* We always use native endianness */
+#undef cpu_to_je16
+#undef cpu_to_je32
+#define cpu_to_je16(v) ((jint16_t){(v)})
+#define cpu_to_je32(v) ((jint32_t){(v)})
+
+static void show_progress(mtd_info_t *meminfo, erase_info_t *erase)
+{
+ printf("\rErasing %u Kibyte @ %x - %2u%% complete.",
+ (unsigned)meminfo->erasesize / 1024,
+ erase->start,
+ (unsigned) ((unsigned long long) erase->start * 100 / meminfo->size)
+ );
+ fflush_all();
+}
+
+int flash_eraseall_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
+{
+ struct jffs2_unknown_node cleanmarker;
+ mtd_info_t meminfo;
+ int fd, clmpos, clmlen;
+ erase_info_t erase;
+ struct stat st;
+ unsigned int flags;
+ char *mtd_name;
+
+ opt_complementary = "=1";
+ flags = BBTEST | getopt32(argv, "jq");
+
+ mtd_name = argv[optind];
+ fd = xopen(mtd_name, O_RDWR);
+ fstat(fd, &st);
+ if (!S_ISCHR(st.st_mode))
+ bb_error_msg_and_die("%s: not a char device", mtd_name);
+
+ xioctl(fd, MEMGETINFO, &meminfo);
+ erase.length = meminfo.erasesize;
+ if (meminfo.type == MTD_NANDFLASH)
+ flags |= IS_NAND;
+
+ clmpos = 0;
+ clmlen = 8;
+ if (flags & OPTION_J) {
+ uint32_t *crc32_table;
+
+ crc32_table = crc32_filltable(NULL, 0);
+
+ cleanmarker.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
+ cleanmarker.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
+ if (!(flags & IS_NAND))
+ cleanmarker.totlen = cpu_to_je32(sizeof(struct jffs2_unknown_node));
+ else {
+ struct nand_oobinfo oobinfo;
+
+ xioctl(fd, MEMGETOOBSEL, &oobinfo);
+
+ /* Check for autoplacement */
+ if (oobinfo.useecc == MTD_NANDECC_AUTOPLACE) {
+ /* Get the position of the free bytes */
+ clmpos = oobinfo.oobfree[0][0];
+ clmlen = oobinfo.oobfree[0][1];
+ if (clmlen > 8)
+ clmlen = 8;
+ if (clmlen == 0)
+ bb_error_msg_and_die("autoplacement selected and no empty space in oob");
+ } else {
+ /* Legacy mode */
+ switch (meminfo.oobsize) {
+ case 8:
+ clmpos = 6;
+ clmlen = 2;
+ break;
+ case 16:
+ clmpos = 8;
+ /*clmlen = 8;*/
+ break;
+ case 64:
+ clmpos = 16;
+ /*clmlen = 8;*/
+ break;
+ }
+ }
+ cleanmarker.totlen = cpu_to_je32(8);
+ }
+
+ cleanmarker.hdr_crc = cpu_to_je32(
+ crc32_block_endian0(0, &cleanmarker, sizeof(struct jffs2_unknown_node) - 4, crc32_table)
+ );
+ }
+
+ /* Don't want to destroy progress indicator by bb_error_msg's */
+ applet_name = xasprintf("\n%s: %s", applet_name, mtd_name);
+
+ for (erase.start = 0; erase.start < meminfo.size;
+ erase.start += meminfo.erasesize) {
+ if (flags & BBTEST) {
+ int ret;
+ loff_t offset = erase.start;
+
+ ret = ioctl(fd, MEMGETBADBLOCK, &offset);
+ if (ret > 0) {
+ if (!(flags & OPTION_Q))
+ bb_info_msg("\nSkipping bad block at 0x%08x", erase.start);
+ continue;
+ }
+ if (ret < 0) {
+ /* Black block table is not available on certain flash
+ * types e.g. NOR
+ */
+ if (errno == EOPNOTSUPP) {
+ flags &= ~BBTEST;
+ if (flags & IS_NAND)
+ bb_error_msg_and_die("bad block check not available");
+ } else {
+ bb_perror_msg_and_die("MEMGETBADBLOCK error");
+ }
+ }
+ }
+
+ if (!(flags & OPTION_Q))
+ show_progress(&meminfo, &erase);
+
+ xioctl(fd, MEMERASE, &erase);
+
+ /* format for JFFS2 ? */
+ if (!(flags & OPTION_J))
+ continue;
+
+ /* write cleanmarker */
+ if (flags & IS_NAND) {
+ struct mtd_oob_buf oob;
+
+ oob.ptr = (unsigned char *) &cleanmarker;
+ oob.start = erase.start + clmpos;
+ oob.length = clmlen;
+ xioctl(fd, MEMWRITEOOB, &oob);
+ } else {
+ xlseek(fd, erase.start, SEEK_SET);
+ /* if (lseek(fd, erase.start, SEEK_SET) < 0) {
+ bb_perror_msg("MTD %s failure", "seek");
+ continue;
+ } */
+ xwrite(fd, &cleanmarker, sizeof(cleanmarker));
+ /* if (write(fd, &cleanmarker, sizeof(cleanmarker)) != sizeof(cleanmarker)) {
+ bb_perror_msg("MTD %s failure", "write");
+ continue;
+ } */
+ }
+ if (!(flags & OPTION_Q))
+ printf(" Cleanmarker written at %x.", erase.start);
+ }
+ if (!(flags & OPTION_Q)) {
+ show_progress(&meminfo, &erase);
+ bb_putchar('\n');
+ }
+
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(fd);
+ return EXIT_SUCCESS;
+}