diff options
Diffstat (limited to 'miscutils')
| -rw-r--r-- | miscutils/Config.in | 7 | ||||
| -rw-r--r-- | miscutils/Kbuild | 1 | ||||
| -rw-r--r-- | miscutils/flashcp.c | 151 |
3 files changed, 159 insertions, 0 deletions
diff --git a/miscutils/Config.in b/miscutils/Config.in index 842f7f9..ebf98f9 100644 --- a/miscutils/Config.in +++ b/miscutils/Config.in @@ -272,6 +272,13 @@ config FBSPLASH "NN" (ASCII decimal number) - percentage to show on progress bar "exit" - well you guessed it +config FLASHCP + bool "flashcp" + default n + help + The flashcp binary, inspired by mtd-utils as of git head 5eceb74f7. + This utility is used to copy images into a MTD device. + config FLASH_LOCK bool "flash_lock" default n diff --git a/miscutils/Kbuild b/miscutils/Kbuild index 22a9adb..bbfa93d 100644 --- a/miscutils/Kbuild +++ b/miscutils/Kbuild @@ -17,6 +17,7 @@ lib-$(CONFIG_DEVFSD) += devfsd.o lib-$(CONFIG_DEVMEM) += devmem.o lib-$(CONFIG_EJECT) += eject.o lib-$(CONFIG_FBSPLASH) += fbsplash.o +lib-$(CONFIG_FLASHCP) += flashcp.o lib-$(CONFIG_FLASH_ERASEALL) += flash_eraseall.o lib-$(CONFIG_FLASH_LOCK) += flash_lock_unlock.o lib-$(CONFIG_FLASH_UNLOCK) += flash_lock_unlock.o diff --git a/miscutils/flashcp.c b/miscutils/flashcp.c new file mode 100644 index 0000000..9472c75 --- /dev/null +++ b/miscutils/flashcp.c @@ -0,0 +1,151 @@ +/* vi: set sw=4 ts=4: */ +/* + * busybox reimplementation of flashcp + * + * (C) 2009 Stefan Seyfried <seife@sphairon.com> + * + * Licensed under GPLv2, see file LICENSE in this tarball for details. + */ + +#include "libbb.h" +#include <mtd/mtd-user.h> + +#define MTD_DEBUG 0 + +#define OPT_v (1 << 0) + +#define BUFSIZE (8 * 1024) + +static void progress(int mode, uoff_t count, uoff_t total) +{ + uoff_t percent; + + if (!option_mask32) //if (!(option_mask32 & OPT_v)) + return; + percent = count * 100; + if (total) + percent = (unsigned) (percent / total); + printf("\r%s: %"OFF_FMT"u/%"OFF_FMT"u (%u%%) ", + (mode == 0) ? "Erasing block" : ((mode == 1) ? "Writing kb" : "Verifying kb"), + count, total, (unsigned)percent); + fflush_all(); +} + +static void progress_newline(void) +{ + if (!option_mask32) //if (!(option_mask32 & OPT_v)) + return; + bb_putchar('\n'); +} + +int flashcp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int flashcp_main(int argc UNUSED_PARAM, char **argv) +{ + int fd_f, fd_d; /* input file and mtd device file descriptors */ + int i; + uoff_t erase_count; + unsigned opts; + struct mtd_info_user mtd; + struct erase_info_user e; + struct stat statb; +// const char *filename, *devicename; + RESERVE_CONFIG_UBUFFER(buf, BUFSIZE); + RESERVE_CONFIG_UBUFFER(buf2, BUFSIZE); + + opt_complementary = "=2"; /* exactly 2 non-option args: file, dev */ + opts = getopt32(argv, "v"); + argv += optind; +// filename = *argv++; +// devicename = *argv; +#define filename argv[0] +#define devicename argv[1] + + /* open input file and mtd device and do sanity checks */ + fd_f = xopen(filename, O_RDONLY); + fstat(fd_f, &statb); + fd_d = xopen(devicename, O_SYNC | O_RDWR); +#if !MTD_DEBUG + if (ioctl(fd_d, MEMGETINFO, &mtd) < 0) { + bb_error_msg_and_die("%s is not a MTD flash device", devicename); + } + if (statb.st_size > mtd.size) { + bb_error_msg_and_die("%s bigger than %s", filename, devicename); + } +#else + mtd.erasesize = 64 * 1024; +#endif + + /* always erase a complete block */ + erase_count = (uoff_t)(statb.st_size + mtd.erasesize - 1) / mtd.erasesize; + /* erase 1 block at a time to be able to give verbose output */ + e.length = mtd.erasesize; +#if 0 +/* (1) bloat + * (2) will it work for multi-gigabyte devices? + * (3) worse wrt error detection granularity + */ + /* optimization: if not verbose, erase in one go */ + if (!opts) { // if (!(opts & OPT_v)) + e.length = mtd.erasesize * erase_count; + erase_count = 1; + } +#endif + e.start = 0; + for (i = 1; i <= erase_count; i++) { + progress(0, i, erase_count); + errno = 0; +#if !MTD_DEBUG + if (ioctl(fd_d, MEMERASE, &e) < 0) { + bb_perror_msg_and_die("erase error at 0x%llx on %s", + (long long)e.start, devicename); + } +#else + usleep(100*1000); +#endif + e.start += mtd.erasesize; + } + progress_newline(); + + /* doing this outer loop gives significantly smaller code + * than doing two separate loops for writing and verifying */ + for (i = 1; i <= 2; i++) { + uoff_t done; + unsigned count; + + xlseek(fd_f, 0, SEEK_SET); + xlseek(fd_d, 0, SEEK_SET); + done = 0; + count = BUFSIZE; + while (1) { + uoff_t rem = statb.st_size - done; + if (rem == 0) + break; + if (rem < BUFSIZE) + count = rem; + progress(i, done / 1024, (uoff_t)statb.st_size / 1024); + xread(fd_f, buf, count); + if (i == 1) { + int ret; + errno = 0; + ret = full_write(fd_d, buf, count); + if (ret != count) { + bb_perror_msg_and_die("write error at 0x%"OFF_FMT"x on %s, " + "write returned %d", + done, devicename, ret); + } + } else { /* i == 2 */ + xread(fd_d, buf2, count); + if (memcmp(buf, buf2, count)) { + bb_error_msg_and_die("verification mismatch at 0x%"OFF_FMT"x", done); + } + } + + done += count; + } + + progress_newline(); + } + /* we won't come here if there was an error */ + + return EXIT_SUCCESS; +} |