diff options
Diffstat (limited to 'u-boot/board/trab/auto_update.c')
| -rw-r--r-- | u-boot/board/trab/auto_update.c | 676 |
1 files changed, 676 insertions, 0 deletions
diff --git a/u-boot/board/trab/auto_update.c b/u-boot/board/trab/auto_update.c new file mode 100644 index 0000000..bcb8505 --- /dev/null +++ b/u-boot/board/trab/auto_update.c @@ -0,0 +1,676 @@ +/* + * (C) Copyright 2003 + * Gary Jennejohn, DENX Software Engineering, garyj@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <malloc.h> +#include <image.h> +#include <asm/byteorder.h> +#include <usb.h> + +#ifdef CONFIG_SYS_HUSH_PARSER +#include <hush.h> +#endif + +#ifdef CONFIG_AUTO_UPDATE + +#ifndef CONFIG_USB_OHCI_NEW +#error "must define CONFIG_USB_OHCI" +#endif + +#ifndef CONFIG_USB_STORAGE +#error "must define CONFIG_USB_STORAGE" +#endif + +#ifndef CONFIG_SYS_HUSH_PARSER +#error "must define CONFIG_SYS_HUSH_PARSER" +#endif + +#if !defined(CONFIG_CMD_FAT) +#error "must define CONFIG_CMD_FAT" +#endif + +/* + * Check whether a USB memory stick is plugged in. + * If one is found: + * 1) if prepare.img ist found load it into memory. If it is + * valid then run it. + * 2) if preinst.img is found load it into memory. If it is + * valid then run it. Update the EEPROM. + * 3) if firmw_01.img is found load it into memory. If it is valid, + * burn it into FLASH and update the EEPROM. + * 4) if kernl_01.img is found load it into memory. If it is valid, + * burn it into FLASH and update the EEPROM. + * 5) if app.img is found load it into memory. If it is valid, + * burn it into FLASH and update the EEPROM. + * 6) if disk.img is found load it into memory. If it is valid, + * burn it into FLASH and update the EEPROM. + * 7) if postinst.img is found load it into memory. If it is + * valid then run it. Update the EEPROM. + */ + +#undef AU_DEBUG + +#undef debug +#ifdef AU_DEBUG +#define debug(fmt,args...) printf (fmt ,##args) +#else +#define debug(fmt,args...) +#endif /* AU_DEBUG */ + +/* possible names of files on the USB stick. */ +#define AU_PREPARE "prepare.img" +#define AU_PREINST "preinst.img" +#define AU_FIRMWARE "firmw_01.img" +#define AU_KERNEL "kernl_01.img" +#define AU_APP "app.img" +#define AU_DISK "disk.img" +#define AU_POSTINST "postinst.img" + +struct flash_layout +{ + long start; + long end; +}; + +/* layout of the FLASH. ST = start address, ND = end address. */ +#ifndef CONFIG_FLASH_8MB /* 16 MB Flash, 32 MB RAM */ +#define AU_FL_FIRMWARE_ST 0x00000000 +#define AU_FL_FIRMWARE_ND 0x0009FFFF +#define AU_FL_VFD_ST 0x000A0000 +#define AU_FL_VFD_ND 0x000BFFFF +#define AU_FL_KERNEL_ST 0x000C0000 +#define AU_FL_KERNEL_ND 0x001BFFFF +#define AU_FL_APP_ST 0x001C0000 +#define AU_FL_APP_ND 0x005BFFFF +#define AU_FL_DISK_ST 0x005C0000 +#define AU_FL_DISK_ND 0x00FFFFFF +#else /* 8 MB Flash, 32 MB RAM */ +#define AU_FL_FIRMWARE_ST 0x00000000 +#define AU_FL_FIRMWARE_ND 0x0005FFFF +#define AU_FL_KERNEL_ST 0x00060000 +#define AU_FL_KERNEL_ND 0x0013FFFF +#define AU_FL_APP_ST 0x00140000 +#define AU_FL_APP_ND 0x0067FFFF +#define AU_FL_DISK_ST 0x00680000 +#define AU_FL_DISK_ND 0x007DFFFF +#define AU_FL_VFD_ST 0x007E0000 +#define AU_FL_VFD_ND 0x007FFFFF +#endif /* CONFIG_FLASH_8MB */ + +/* a structure with the offsets to values in the EEPROM */ +struct eeprom_layout +{ + int time; + int size; + int dcrc; +}; + +/* layout of the EEPROM - offset from the start. All entries are 32 bit. */ +#define AU_EEPROM_TIME_PREINST 64 +#define AU_EEPROM_SIZE_PREINST 68 +#define AU_EEPROM_DCRC_PREINST 72 +#define AU_EEPROM_TIME_FIRMWARE 76 +#define AU_EEPROM_SIZE_FIRMWARE 80 +#define AU_EEPROM_DCRC_FIRMWARE 84 +#define AU_EEPROM_TIME_KERNEL 88 +#define AU_EEPROM_SIZE_KERNEL 92 +#define AU_EEPROM_DCRC_KERNEL 96 +#define AU_EEPROM_TIME_APP 100 +#define AU_EEPROM_SIZE_APP 104 +#define AU_EEPROM_DCRC_APP 108 +#define AU_EEPROM_TIME_DISK 112 +#define AU_EEPROM_SIZE_DISK 116 +#define AU_EEPROM_DCRC_DISK 120 +#define AU_EEPROM_TIME_POSTINST 124 +#define AU_EEPROM_SIZE_POSTINST 128 +#define AU_EEPROM_DCRC_POSTINST 132 + +static int au_usb_stor_curr_dev; /* current device */ + +/* index of each file in the following arrays */ +#define IDX_PREPARE 0 +#define IDX_PREINST 1 +#define IDX_FIRMWARE 2 +#define IDX_KERNEL 3 +#define IDX_APP 4 +#define IDX_DISK 5 +#define IDX_POSTINST 6 +/* max. number of files which could interest us */ +#define AU_MAXFILES 7 +/* pointers to file names */ +char *aufile[AU_MAXFILES]; +/* sizes of flash areas for each file */ +long ausize[AU_MAXFILES]; +/* offsets into the EEEPROM */ +struct eeprom_layout auee_off[AU_MAXFILES] = { \ + {0}, \ + {AU_EEPROM_TIME_PREINST, AU_EEPROM_SIZE_PREINST, AU_EEPROM_DCRC_PREINST,}, \ + {AU_EEPROM_TIME_FIRMWARE, AU_EEPROM_SIZE_FIRMWARE, AU_EEPROM_DCRC_FIRMWARE,}, \ + {AU_EEPROM_TIME_KERNEL, AU_EEPROM_SIZE_KERNEL, AU_EEPROM_DCRC_KERNEL,}, \ + {AU_EEPROM_TIME_APP, AU_EEPROM_SIZE_APP, AU_EEPROM_DCRC_APP,}, \ + {AU_EEPROM_TIME_DISK, AU_EEPROM_SIZE_DISK, AU_EEPROM_DCRC_DISK,}, \ + {AU_EEPROM_TIME_POSTINST, AU_EEPROM_SIZE_POSTINST, AU_EEPROM_DCRC_POSTINST,} \ + }; +/* array of flash areas start and end addresses */ +struct flash_layout aufl_layout[AU_MAXFILES - 3] = { \ + {AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,}, \ + {AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,}, \ + {AU_FL_APP_ST, AU_FL_APP_ND,}, \ + {AU_FL_DISK_ST, AU_FL_DISK_ND,}, \ +}; +/* convert the index into aufile[] to an index into aufl_layout[] */ +#define FIDX_TO_LIDX(idx) ((idx) - 2) + +/* where to load files into memory */ +#define LOAD_ADDR ((unsigned char *)0x0C100000) +/* the app is the largest image */ +#define MAX_LOADSZ ausize[IDX_APP] + +/* externals */ +extern int fat_register_device(block_dev_desc_t *, int); +extern int file_fat_detectfs(void); +extern long file_fat_read(const char *, void *, unsigned long); +extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int); +extern int i2c_write (uchar, uint, int , uchar* , int); +#ifdef CONFIG_VFD +extern int trab_vfd (ulong); +extern int transfer_pic(unsigned char, unsigned char *, int, int); +#endif +extern int flash_sect_erase(ulong, ulong); +extern int flash_sect_protect (int, ulong, ulong); +extern int flash_write (char *, ulong, ulong); +/* change char* to void* to shutup the compiler */ +extern int i2c_write_multiple (uchar, uint, int, void *, int); +extern int i2c_read_multiple (uchar, uint, int, void *, int); +extern int u_boot_hush_start(void); + +int +au_check_cksum_valid(int idx, long nbytes) +{ + image_header_t *hdr; + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + if (nbytes != image_get_image_size (hdr)) { + printf ("Image %s bad total SIZE\n", aufile[idx]); + return -1; + } + /* check the data CRC */ + if (!image_check_dcrc (hdr)) { + printf ("Image %s bad data checksum\n", aufile[idx]); + return -1; + } + return 0; +} + +int +au_check_header_valid(int idx, long nbytes) +{ + image_header_t *hdr; + unsigned long checksum; + unsigned char buf[4]; + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + /* check the easy ones first */ +#undef CHECK_VALID_DEBUG +#ifdef CHECK_VALID_DEBUG + printf("magic %#x %#x ", image_get_magic (hdr), IH_MAGIC); + printf("arch %#x %#x ", image_get_arch (hdr), IH_ARCH_ARM); + printf("size %#x %#lx ", image_get_data_size (hdr), nbytes); + printf("type %#x %#x ", image_get_type (hdr), IH_TYPE_KERNEL); +#endif + if (nbytes < image_get_header_size ()) { + printf ("Image %s bad header SIZE\n", aufile[idx]); + return -1; + } + if (!image_check_magic (hdr) || !image_check_arch (hdr, IH_ARCH_ARM)) { + printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]); + return -1; + } + /* check the hdr CRC */ + if (!image_check_hcrc (hdr)) { + printf ("Image %s bad header checksum\n", aufile[idx]); + return -1; + } + /* check the type - could do this all in one gigantic if() */ + if ((idx == IDX_FIRMWARE) && + !image_check_type (hdr, IH_TYPE_FIRMWARE)) { + printf ("Image %s wrong type\n", aufile[idx]); + return -1; + } + if ((idx == IDX_KERNEL) && !image_check_type (hdr, IH_TYPE_KERNEL)) { + printf ("Image %s wrong type\n", aufile[idx]); + return -1; + } + if ((idx == IDX_DISK) && !image_check_type (hdr, IH_TYPE_FILESYSTEM)) { + printf ("Image %s wrong type\n", aufile[idx]); + return -1; + } + if ((idx == IDX_APP) && !image_check_type (hdr, IH_TYPE_RAMDISK) + && !image_check_type (hdr, IH_TYPE_FILESYSTEM)) { + printf ("Image %s wrong type\n", aufile[idx]); + return -1; + } + if ((idx == IDX_PREPARE || idx == IDX_PREINST || idx == IDX_POSTINST) + && !image_check_type (hdr, IH_TYPE_SCRIPT)) { + printf ("Image %s wrong type\n", aufile[idx]); + return -1; + } + /* special case for prepare.img */ + if (idx == IDX_PREPARE) + return 0; + /* recycle checksum */ + checksum = image_get_data_size (hdr); + /* for kernel and app the image header must also fit into flash */ + if ((idx != IDX_DISK) && (idx != IDX_FIRMWARE)) + checksum += image_get_header_size (); + /* check the size does not exceed space in flash. HUSH scripts */ + /* all have ausize[] set to 0 */ + if ((ausize[idx] != 0) && (ausize[idx] < checksum)) { + printf ("Image %s is bigger than FLASH\n", aufile[idx]); + return -1; + } + /* check the time stamp from the EEPROM */ + /* read it in */ + i2c_read_multiple(0x54, auee_off[idx].time, 1, buf, sizeof(buf)); +#ifdef CHECK_VALID_DEBUG + printf ("buf[0] %#x buf[1] %#x buf[2] %#x buf[3] %#x " + "as int %#x time %#x\n", + buf[0], buf[1], buf[2], buf[3], + *((unsigned int *)buf), image_get_time (hdr)); +#endif + /* check it */ + if (*((unsigned int *)buf) >= image_get_time (hdr)) { + printf ("Image %s is too old\n", aufile[idx]); + return -1; + } + + return 0; +} + +/* power control defines */ +#define CPLD_VFD_BK ((volatile char *)0x04038002) +#define POWER_OFF (1 << 1) + +int +au_do_update(int idx, long sz) +{ + image_header_t *hdr; + char *addr; + long start, end; + int off, rc; + uint nbytes; + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + /* disable the power switch */ + *CPLD_VFD_BK |= POWER_OFF; + + /* execute a script */ + if (image_check_type (hdr, IH_TYPE_SCRIPT)) { + addr = (char *)((char *)hdr + image_get_header_size ()); + /* stick a NULL at the end of the script, otherwise */ + /* parse_string_outer() runs off the end. */ + addr[image_get_data_size (hdr)] = 0; + addr += 8; + parse_string_outer(addr, FLAG_PARSE_SEMICOLON); + return 0; + } + + start = aufl_layout[FIDX_TO_LIDX(idx)].start; + end = aufl_layout[FIDX_TO_LIDX(idx)].end; + + /* unprotect the address range */ + /* this assumes that ONLY the firmware is protected! */ + if (idx == IDX_FIRMWARE) { +#undef AU_UPDATE_TEST +#ifdef AU_UPDATE_TEST + /* erase it where Linux goes */ + start = aufl_layout[1].start; + end = aufl_layout[1].end; +#endif + flash_sect_protect(0, start, end); + } + + /* + * erase the address range. + */ + debug ("flash_sect_erase(%lx, %lx);\n", start, end); + flash_sect_erase(start, end); + wait_ms(100); + /* strip the header - except for the kernel and ramdisk */ + if (image_check_type (hdr, IH_TYPE_KERNEL) || + image_check_type (hdr, IH_TYPE_RAMDISK)) { + addr = (char *)hdr; + off = image_get_header_size (); + nbytes = image_get_image_size (hdr); + } else { + addr = (char *)((char *)hdr + image_get_header_size ()); +#ifdef AU_UPDATE_TEST + /* copy it to where Linux goes */ + if (idx == IDX_FIRMWARE) + start = aufl_layout[1].start; +#endif + off = 0; + nbytes = image_get_data_size (hdr); + } + + /* copy the data from RAM to FLASH */ + debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes); + rc = flash_write(addr, start, nbytes); + if (rc != 0) { + printf("Flashing failed due to error %d\n", rc); + return -1; + } + + /* check the dcrc of the copy */ + if (crc32 (0, (uchar *)(start + off), image_get_data_size (hdr)) != + image_get_dcrc (hdr)) { + printf ("Image %s Bad Data Checksum After COPY\n", aufile[idx]); + return -1; + } + + /* protect the address range */ + /* this assumes that ONLY the firmware is protected! */ + if (idx == IDX_FIRMWARE) + flash_sect_protect(1, start, end); + return 0; +} + +int +au_update_eeprom(int idx) +{ + image_header_t *hdr; + int off; + uint32_t val; + + /* special case for prepare.img */ + if (idx == IDX_PREPARE) { + /* enable the power switch */ + *CPLD_VFD_BK &= ~POWER_OFF; + return 0; + } + + hdr = (image_header_t *)LOAD_ADDR; +#if defined(CONFIG_FIT) + if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { + puts ("Non legacy image format not supported\n"); + return -1; + } +#endif + + /* write the time field into EEPROM */ + off = auee_off[idx].time; + val = image_get_time (hdr); + i2c_write_multiple(0x54, off, 1, &val, sizeof(val)); + /* write the size field into EEPROM */ + off = auee_off[idx].size; + val = image_get_data_size (hdr); + i2c_write_multiple(0x54, off, 1, &val, sizeof(val)); + /* write the dcrc field into EEPROM */ + off = auee_off[idx].dcrc; + val = image_get_dcrc (hdr); + i2c_write_multiple(0x54, off, 1, &val, sizeof(val)); + /* enable the power switch */ + *CPLD_VFD_BK &= ~POWER_OFF; + return 0; +} + +/* + * this is called from board_init() after the hardware has been set up + * and is usable. That seems like a good time to do this. + * Right now the return value is ignored. + */ +int +do_auto_update(void) +{ + block_dev_desc_t *stor_dev; + long sz; + int i, res = 0, bitmap_first, cnt, old_ctrlc, got_ctrlc; + char *env; + long start, end; + +#undef ERASE_EEPROM +#ifdef ERASE_EEPROM + int arr[18]; + memset(arr, 0, sizeof(arr)); + i2c_write_multiple(0x54, 64, 1, arr, sizeof(arr)); +#endif + au_usb_stor_curr_dev = -1; + /* start USB */ + if (usb_stop() < 0) { + debug ("usb_stop failed\n"); + return -1; + } + if (usb_init() < 0) { + debug ("usb_init failed\n"); + return -1; + } + /* + * check whether a storage device is attached (assume that it's + * a USB memory stick, since nothing else should be attached). + */ + au_usb_stor_curr_dev = usb_stor_scan(0); + if (au_usb_stor_curr_dev == -1) { + debug ("No device found. Not initialized?\n"); + res = -1; + goto xit; + } + /* check whether it has a partition table */ + stor_dev = get_dev("usb", 0); + if (stor_dev == NULL) { + debug ("uknown device type\n"); + res = -1; + goto xit; + } + if (fat_register_device(stor_dev, 1) != 0) { + debug ("Unable to use USB %d:%d for fatls\n", + au_usb_stor_curr_dev, 1); + res = -1; + goto xit; + } + if (file_fat_detectfs() != 0) { + debug ("file_fat_detectfs failed\n"); + } + + /* initialize the array of file names */ + memset(aufile, 0, sizeof(aufile)); + aufile[IDX_PREPARE] = AU_PREPARE; + aufile[IDX_PREINST] = AU_PREINST; + aufile[IDX_FIRMWARE] = AU_FIRMWARE; + aufile[IDX_KERNEL] = AU_KERNEL; + aufile[IDX_APP] = AU_APP; + aufile[IDX_DISK] = AU_DISK; + aufile[IDX_POSTINST] = AU_POSTINST; + /* initialize the array of flash sizes */ + memset(ausize, 0, sizeof(ausize)); + ausize[IDX_FIRMWARE] = (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST; + ausize[IDX_KERNEL] = (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST; + ausize[IDX_APP] = (AU_FL_APP_ND + 1) - AU_FL_APP_ST; + ausize[IDX_DISK] = (AU_FL_DISK_ND + 1) - AU_FL_DISK_ST; + /* + * now check whether start and end are defined using environment + * variables. + */ + start = -1; + end = 0; + env = getenv("firmware_st"); + if (env != NULL) + start = simple_strtoul(env, NULL, 16); + env = getenv("firmware_nd"); + if (env != NULL) + end = simple_strtoul(env, NULL, 16); + if (start >= 0 && end && end > start) { + ausize[IDX_FIRMWARE] = (end + 1) - start; + aufl_layout[0].start = start; + aufl_layout[0].end = end; + } + start = -1; + end = 0; + env = getenv("kernel_st"); + if (env != NULL) + start = simple_strtoul(env, NULL, 16); + env = getenv("kernel_nd"); + if (env != NULL) + end = simple_strtoul(env, NULL, 16); + if (start >= 0 && end && end > start) { + ausize[IDX_KERNEL] = (end + 1) - start; + aufl_layout[1].start = start; + aufl_layout[1].end = end; + } + start = -1; + end = 0; + env = getenv("app_st"); + if (env != NULL) + start = simple_strtoul(env, NULL, 16); + env = getenv("app_nd"); + if (env != NULL) + end = simple_strtoul(env, NULL, 16); + if (start >= 0 && end && end > start) { + ausize[IDX_APP] = (end + 1) - start; + aufl_layout[2].start = start; + aufl_layout[2].end = end; + } + start = -1; + end = 0; + env = getenv("disk_st"); + if (env != NULL) + start = simple_strtoul(env, NULL, 16); + env = getenv("disk_nd"); + if (env != NULL) + end = simple_strtoul(env, NULL, 16); + if (start >= 0 && end && end > start) { + ausize[IDX_DISK] = (end + 1) - start; + aufl_layout[3].start = start; + aufl_layout[3].end = end; + } + /* make certain that HUSH is runnable */ + u_boot_hush_start(); + /* make sure that we see CTRL-C and save the old state */ + old_ctrlc = disable_ctrlc(0); + + bitmap_first = 0; + /* just loop thru all the possible files */ + for (i = 0; i < AU_MAXFILES; i++) { + /* just read the header */ + sz = file_fat_read(aufile[i], LOAD_ADDR, image_get_header_size ()); + debug ("read %s sz %ld hdr %d\n", + aufile[i], sz, image_get_header_size ()); + if (sz <= 0 || sz < image_get_header_size ()) { + debug ("%s not found\n", aufile[i]); + continue; + } + if (au_check_header_valid(i, sz) < 0) { + debug ("%s header not valid\n", aufile[i]); + continue; + } + sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ); + debug ("read %s sz %ld hdr %d\n", + aufile[i], sz, image_get_header_size ()); + if (sz <= 0 || sz <= image_get_header_size ()) { + debug ("%s not found\n", aufile[i]); + continue; + } + if (au_check_cksum_valid(i, sz) < 0) { + debug ("%s checksum not valid\n", aufile[i]); + continue; + } +#ifdef CONFIG_VFD + /* now that we have a valid file we can display the */ + /* bitmap. */ + if (bitmap_first == 0) { + env = getenv("bitmap2"); + if (env == NULL) { + trab_vfd(0); + } else { + /* not so simple - bitmap2 is supposed to */ + /* contain the address of the bitmap */ + env = (char *)simple_strtoul(env, NULL, 16); +/* NOTE: these are taken from vfd_logo.h. If that file changes then */ +/* these defines MUST also be updated! These may be wrong for bitmap2. */ +#define VFD_LOGO_WIDTH 112 +#define VFD_LOGO_HEIGHT 72 + /* must call transfer_pic directly */ + transfer_pic(3, (unsigned char *)env, + VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH); + } + bitmap_first = 1; + } +#endif + /* this is really not a good idea, but it's what the */ + /* customer wants. */ + cnt = 0; + got_ctrlc = 0; + do { + res = au_do_update(i, sz); + /* let the user break out of the loop */ + if (ctrlc() || had_ctrlc()) { + clear_ctrlc(); + if (res < 0) + got_ctrlc = 1; + break; + } + cnt++; +#ifdef AU_TEST_ONLY + } while (res < 0 && cnt < 3); + if (cnt < 3) +#else + } while (res < 0); +#endif + /* + * it doesn't make sense to update the EEPROM if the + * update was interrupted by the user due to errors. + */ + if (got_ctrlc == 0) + au_update_eeprom(i); + else + /* enable the power switch */ + *CPLD_VFD_BK &= ~POWER_OFF; + } + /* restore the old state */ + disable_ctrlc(old_ctrlc); +xit: + usb_stop(); + return res; +} +#endif /* CONFIG_AUTO_UPDATE */ |