wdenk
22 years ago
parent
34b3049a60
commit
f54ebdfa28
@ -0,0 +1,414 @@ |
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/*
|
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* (C) Copyright 2003 |
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* Gary Jennejohn, DENX Software Engineering, gj@denx.de. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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|
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#include <common.h> |
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#include <command.h> |
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#include <malloc.h> |
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#include <image.h> |
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#include <asm/byteorder.h> |
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#include <usb.h> |
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#ifdef CFG_HUSH_PARSER |
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#include <hush.h> |
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#endif |
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#ifdef CONFIG_AUTO_UPDATE |
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#ifndef CONFIG_USB_OHCI |
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#error "must define CONFIG_USB_OHCI" |
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#endif |
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#ifndef CONFIG_USB_STORAGE |
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#error "must define CONFIG_USB_STORAGE" |
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#endif |
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#ifndef CFG_HUSH_PARSER |
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#error "must define CFG_HUSH_PARSER" |
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#endif |
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#if !(CONFIG_COMMANDS & CFG_CMD_FAT) |
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#error "must define CFG_CMD_FAT" |
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#endif |
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|
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/*
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* Check whether a USB memory stick is plugged in. |
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* If one is found: |
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* 1) try to do an MSDOS ls |
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* 2) if preinst.img is found and is not 0 length, load it into |
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* memory and run it (how to check beforehand if it's a |
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* valid HUSH command file?) |
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* 3) |
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* 4) |
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* 5) |
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* 6) |
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* 7) |
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* 8) |
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* 9) |
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* 10) |
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* 11) |
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* 12) |
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*/ |
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#undef AU_DEBUG |
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#undef debug |
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#ifdef AU_DEBUG |
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#define debug(fmt,args...) printf (fmt ,##args) |
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#else |
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#define debug(fmt,args...) |
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#endif /* AU_DEBUG */ |
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/* possible names of files on the USB stick. */ |
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#define AU_PREPARE "prepare.img" |
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#define AU_PREINST "preinst.img" |
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#define AU_FIRMWARE "firmware.img" |
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#define AU_KERNEL "kernel.img" |
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#define AU_APP "app.img" |
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#define AU_DISK "disk.img" |
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#define AU_POSTINST "postinst.img" |
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/* layout of the FLASH. ST = start address, ND = end address. */ |
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#ifndef CONFIG_OLD_VERSION /* 16 MB Flash, 32 MB RAM */ |
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#define AU_FL_FIRMWARE_ST 0x00000000 |
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#define AU_FL_FIRMWARE_ND 0x0009FFFF |
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#define AU_FL_VFD_ST 0x000A0000 |
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#define AU_FL_VFD_ND 0x000BFFFF |
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#define AU_FL_KERNEL_ST 0x000C0000 |
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#define AU_FL_KERNEL_ND 0x001BFFFF |
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#define AU_FL_APP_ST 0x001C0000 |
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#define AU_FL_APP_ND 0x005BFFFF |
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#define AU_FL_DISK_ST 0x005C0000 |
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#define AU_FL_DISK_ND 0x00FFFFFF |
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#else /* 8 MB Flash, 16 MB RAM */ |
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#define AU_FL_FIRMWARE_ST 0x00000000 |
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#define AU_FL_FIRMWARE_ND 0x0003FFFF |
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#define AU_FL_KERNEL_ST 0x00040000 |
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#define AU_FL_KERNEL_ND 0x0011FFFF |
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#define AU_FL_APP_ST 0x00120000 |
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#define AU_FL_APP_ND 0x003FFFFF |
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#define AU_FL_DISK_ST 0x00400000 |
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#define AU_FL_DISK_ND 0x007DFFFF |
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#define AU_FL_VFD_ST 0x007E0000 |
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#define AU_FL_VFD_ND 0x007FFFFF |
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#endif /* CONFIG_OLD_VERSION */ |
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/* a structure with the offsets to values in the EEPROM */ |
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struct eeprom_layout |
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{ |
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unsigned int time; |
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unsigned int size; |
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unsigned int dcrc; |
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}; |
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/* layout of the EEPROM - offset from the start. All entries are 32 bit. */ |
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#define AU_EEPROM_TIME_PREINST 64 |
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#define AU_EEPROM_SIZE_PREINST 68 |
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#define AU_EEPROM_DCRC_PREINST 72 |
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#define AU_EEPROM_TIME_FIRMWARE 76 |
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#define AU_EEPROM_SIZE_FIRMWARE 80 |
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#define AU_EEPROM_DCRC_FIRMWARE 84 |
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#define AU_EEPROM_TIME_KERNEL 88 |
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#define AU_EEPROM_SIZE_KERNEL 92 |
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#define AU_EEPROM_DCRC_KERNEL 96 |
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#define AU_EEPROM_TIME_APP 100 |
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#define AU_EEPROM_SIZE_APP 104 |
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#define AU_EEPROM_DCRC_APP 108 |
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#define AU_EEPROM_TIME_DISK 112 |
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#define AU_EEPROM_SIZE_DISK 116 |
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#define AU_EEPROM_DCRC_DISK 120 |
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#define AU_EEPROM_TIME_POSTINST 124 |
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#define AU_EEPROM_SIZE_POSTINST 128 |
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#define AU_EEPROM_DCRC_POSTINST 132 |
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static int au_usb_stor_curr_dev; /* current device */ |
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/* max. number of files which could interest us */ |
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#define AU_MAXFILES 7 |
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/* pointers to file names */ |
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char *aufile[AU_MAXFILES]; |
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/* sizes of flash areas for each file */ |
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long ausize[AU_MAXFILES]; |
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/* offsets into the EEEPROM */ |
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struct eeprom_layout auee_off[AU_MAXFILES] = { \
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{0}, \
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{AU_EEPROM_TIME_PREINST, AU_EEPROM_SIZE_PREINST, AU_EEPROM_DCRC_PREINST,}, \
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{AU_EEPROM_TIME_FIRMWARE, AU_EEPROM_SIZE_FIRMWARE, AU_EEPROM_DCRC_FIRMWARE,}, \
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{AU_EEPROM_TIME_KERNEL, AU_EEPROM_SIZE_KERNEL, AU_EEPROM_DCRC_KERNEL,}, \
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{AU_EEPROM_TIME_APP, AU_EEPROM_SIZE_APP, AU_EEPROM_DCRC_APP,}, \
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{AU_EEPROM_TIME_DISK, AU_EEPROM_SIZE_DISK, AU_EEPROM_DCRC_DISK,}, \
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{AU_EEPROM_TIME_POSTINST, AU_EEPROM_SIZE_POSTINST, AU_EEPROM_DCRC_POSTINST,} \
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}; |
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/* index of each file in the above array */ |
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#define IDX_PREPARE 0 |
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#define IDX_PREINST 1 |
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#define IDX_FIRMWARE 2 |
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#define IDX_KERNEL 3 |
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#define IDX_APP 4 |
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#define IDX_DISK 5 |
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#define IDX_POSTINST 6 |
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/* where to load files into memory */ |
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#define LOAD_ADDR ((unsigned char *)0x0c100000) |
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/* the disk is the largest image */ |
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#define MAX_LOADSZ ausize[IDX_DISK] |
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/* externals */ |
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extern int fat_register_device(block_dev_desc_t *, int); |
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extern int file_fat_detectfs(void); |
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extern long file_fat_read(const char *, void *, unsigned long); |
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extern int i2c_read (unsigned char, unsigned int, int , unsigned char* , int); |
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extern int i2c_write (uchar, uint, int , uchar* , int); |
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#ifdef CONFIG_VFD |
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extern int trab_vfd (ulong); |
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extern int transfer_pic(unsigned char, unsigned char *, int, int); |
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#endif |
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extern int i2c_write_multiple (uchar, uint, int, uchar *, int); |
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extern int i2c_read_multiple (uchar, uint, int, uchar *, int); |
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int |
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au_check_valid(int idx, long nbytes) |
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{ |
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image_header_t *hdr; |
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unsigned long checksum; |
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unsigned char buf[4]; |
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hdr = (image_header_t *)LOAD_ADDR; |
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/* check the easy ones first */ |
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#ifdef CHECK_VALID_DEBUG |
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printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC); |
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printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM); |
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printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes); |
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printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL); |
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#endif |
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if (ntohl(hdr->ih_magic) != IH_MAGIC || |
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hdr->ih_arch != IH_CPU_ARM || |
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nbytes < ntohl(hdr->ih_size)) { |
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printf ("Image %s Bad MAGIC or ARCH or SIZE\n", aufile[idx]); |
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return -1; |
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} |
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/* check the hdr CRC */ |
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checksum = ntohl(hdr->ih_hcrc); |
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hdr->ih_hcrc = 0; |
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if (crc32 (0, (char *)hdr, sizeof(*hdr)) != checksum) { |
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printf ("Image %s Bad Header Checksum\n", aufile[idx]); |
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return -1; |
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} |
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/* check the data CRC */ |
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checksum = ntohl(hdr->ih_dcrc); |
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if (crc32 (0, (char *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size)) |
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!= checksum) |
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{ |
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printf ("Image %s Bad Data Checksum\n", aufile[idx]); |
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return -1; |
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} |
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/* check the type - could do this all in one gigantic if() */ |
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if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) { |
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printf ("Image %s Wrong Type\n", aufile[idx]); |
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return -1; |
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} |
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if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) { |
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printf ("Image %s Wrong Type\n", aufile[idx]); |
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return -1; |
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} |
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if ((idx == IDX_DISK || idx == IDX_APP) |
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&& (hdr->ih_type != IH_TYPE_RAMDISK)) |
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{ |
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printf ("Image %s Wrong Type\n", aufile[idx]); |
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return -1; |
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} |
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if ((idx == IDX_PREPARE || idx == IDX_PREINST || idx == IDX_POSTINST) |
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&& (hdr->ih_type != IH_TYPE_SCRIPT)) |
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{ |
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printf ("Image %s Wrong Type\n", aufile[idx]); |
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return -1; |
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} |
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/* special case for prepare.img */ |
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if (idx == IDX_PREPARE) |
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return 0; |
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/* check the size does not exceed space in flash */ |
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if ((ausize[idx] != 0) && (ausize[idx] < ntohl(hdr->ih_size))) { |
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printf ("Image %s is bigger than FLASH\n", aufile[idx]); |
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return -1; |
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} |
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/* check the time stamp from the EEPROM */ |
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/* read it in */ |
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i2c_read_multiple(0x54, auee_off[idx].time, 1, buf, sizeof(buf)); |
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#ifdef CHECK_VALID_DEBUG |
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printf("buf[0] %#x buf[1] %#x buf[2] %#x buf[3] %#x as int %#x time %#x\n", |
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buf[0], buf[1], buf[2], buf[3], *((unsigned int *)buf), ntohl(hdr->ih_time)); |
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#endif |
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/* check it */ |
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if (*((unsigned int *)buf) >= ntohl(hdr->ih_time)) { |
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printf ("Image %s is too old\n", aufile[idx]); |
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return -1; |
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} |
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return 0; |
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} |
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/* power control defines */ |
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#define CPLD_VFD_BK ((volatile char *)0x04038002) |
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#define POWER_OFF (1 << 1) |
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int |
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au_do_update(int idx) |
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{ |
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image_header_t *hdr; |
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char *addr; |
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hdr = (image_header_t *)LOAD_ADDR; |
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/* disable the power switch */ |
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*CPLD_VFD_BK |= POWER_OFF; |
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/* execute a script */ |
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if (hdr->ih_type == IH_TYPE_SCRIPT) { |
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addr = (char *)((char *)hdr + sizeof(*hdr) + 8); |
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parse_string_outer(addr, |
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FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP); |
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return 0; |
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} |
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return 0; |
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} |
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int |
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au_update_eeprom(int idx) |
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{ |
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image_header_t *hdr; |
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hdr = (image_header_t *)LOAD_ADDR; |
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/* enable the power switch */ |
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*CPLD_VFD_BK &= ~POWER_OFF; |
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return 0; |
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} |
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/*
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* this is called from board_init() after the hardware has been set up |
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* and is usable. That seems like a good time to do this. |
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* Right now the return value is ignored. |
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*/ |
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int |
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do_auto_update(void) |
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{ |
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block_dev_desc_t *stor_dev; |
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long sz; |
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int i, res, bitmap_first; |
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char *env; |
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#ifdef ERASE_EEPROM |
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int arr[18]; |
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memset(arr, 0, sizeof(arr)); |
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i2c_write_multiple(0x54, 64, 1, arr, sizeof(arr)); |
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#endif |
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au_usb_stor_curr_dev = -1; |
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/* start USB */ |
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if (usb_stop() < 0) { |
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debug ("usb_stop failed\n"); |
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return -1; |
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} |
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if (usb_init() < 0) { |
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debug ("usb_init failed\n"); |
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return -1; |
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} |
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/*
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* check whether a storage device is attached (assume that it's |
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* a USB memory stick, since nothing else should be attached). |
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*/ |
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au_usb_stor_curr_dev = usb_stor_scan(1); |
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if (au_usb_stor_curr_dev == -1) { |
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debug ("No device found. Not initialized?\n"); |
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return -1; |
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} |
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/* check whether it has a partition table */ |
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stor_dev = usb_stor_get_dev(au_usb_stor_curr_dev); |
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if (stor_dev->type == DEV_TYPE_UNKNOWN) { |
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debug ("uknown device type\n"); |
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return -1; |
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} |
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if (fat_register_device(stor_dev, 1) != 0) { |
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debug ("Unable to use USB %d:%d for fatls\n", |
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au_usb_stor_curr_dev, 1); |
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return -1; |
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} |
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if (file_fat_detectfs() != 0) { |
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debug ("file_fat_detectfs failed\n"); |
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} |
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/* initialize the array of file names */ |
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memset(aufile, 0, sizeof(aufile)); |
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aufile[IDX_PREPARE] = AU_PREPARE; |
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aufile[IDX_PREINST] = AU_PREINST; |
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aufile[IDX_FIRMWARE] = AU_FIRMWARE; |
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aufile[IDX_KERNEL] = AU_KERNEL; |
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aufile[IDX_APP] = AU_APP; |
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aufile[IDX_DISK] = AU_DISK; |
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aufile[IDX_POSTINST] = AU_POSTINST; |
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/* initialize the array of flash sizes */ |
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memset(ausize, 0, sizeof(ausize)); |
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ausize[IDX_FIRMWARE] = (AU_FL_FIRMWARE_ND + 1) - AU_FL_FIRMWARE_ST; |
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ausize[IDX_KERNEL] = (AU_FL_KERNEL_ND + 1) - AU_FL_KERNEL_ST; |
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ausize[IDX_APP] = (AU_FL_APP_ND + 1) - AU_FL_APP_ST; |
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ausize[IDX_DISK] = (AU_FL_DISK_ND + 1) - AU_FL_DISK_ST; |
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bitmap_first = 0; |
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/* just loop thru all the possible files */ |
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for (i = 0; i < AU_MAXFILES; i++) { |
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sz = file_fat_read(aufile[i], LOAD_ADDR, MAX_LOADSZ); |
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debug ("read %s sz %ld hdr %d\n", |
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aufile[i], sz, sizeof(image_header_t)); |
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if (sz <= 0 || sz <= sizeof(image_header_t)) { |
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debug ("%s not found\n", aufile[i]); |
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continue; |
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} |
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if (au_check_valid(i, sz) < 0) { |
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debug ("%s not valid\n", aufile[i]); |
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continue; |
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} |
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#ifdef CONFIG_VFD |
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/* now that we have a valid file we can display the */ |
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/* bitmap. */ |
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if (bitmap_first == 0) { |
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env = getenv("bitmap2"); |
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if (env == NULL) { |
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trab_vfd(0); |
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} else { |
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/* not so simple - bitmap2 is supposed to */ |
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/* contain the address of the bitmap */ |
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env = (char *)simple_strtoul(env, NULL, 16); |
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/* NOTE: these are taken from vfd_logo.h. If that file changes then */ |
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/* these defines MUST also be updated! These may be wrong for bitmap2. */ |
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#define VFD_LOGO_WIDTH 112 |
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#define VFD_LOGO_HEIGHT 72 |
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/* must call transfer_pic directly */ |
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transfer_pic(3, env, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH); |
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} |
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bitmap_first = 1; |
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} |
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#endif |
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/* this is really not a good idea, but it's what the */ |
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/* customer wants. */ |
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do { |
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res = au_do_update(i); |
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} while (res < 0); |
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au_update_eeprom(i); |
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} |
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return 0; |
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} |
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#endif /* CONFIG_AUTO_UPDATE */ |
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