--- /dev/null
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 CFG_HUSH_PARSER
+#include <hush.h>
+#endif
+
+
+#ifdef CONFIG_AUTO_UPDATE
+
+#ifndef CONFIG_USB_OHCI
+#error "must define CONFIG_USB_OHCI"
+#endif
+
+#ifndef CONFIG_USB_STORAGE
+#error "must define CONFIG_USB_STORAGE"
+#endif
+
+#ifndef CFG_HUSH_PARSER
+#error "must define CFG_HUSH_PARSER"
+#endif
+
+#if !(CONFIG_COMMANDS & CFG_CMD_FAT)
+#error "must define CFG_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_FIRMWARE "u-boot.img"
+#define AU_KERNEL "kernel.img"
+
+struct flash_layout
+{
+ long start;
+ long end;
+};
+
+/* layout of the FLASH. ST = start address, ND = end address. */
+#define AU_FL_FIRMWARE_ST 0xfC000000
+#define AU_FL_FIRMWARE_ND 0xfC03FFFF
+#define AU_FL_KERNEL_ST 0xfC0C0000
+#define AU_FL_KERNEL_ND 0xfC1BFFFF
+
+static int au_usb_stor_curr_dev; /* current device */
+
+/* index of each file in the following arrays */
+#define IDX_FIRMWARE 0
+#define IDX_KERNEL 1
+
+/* max. number of files which could interest us */
+#define AU_MAXFILES 2
+
+/* pointers to file names */
+char *aufile[AU_MAXFILES];
+
+/* sizes of flash areas for each file */
+long ausize[AU_MAXFILES];
+
+/* array of flash areas start and end addresses */
+struct flash_layout aufl_layout[AU_MAXFILES] = { \
+ {AU_FL_FIRMWARE_ST, AU_FL_FIRMWARE_ND,}, \
+ {AU_FL_KERNEL_ST, AU_FL_KERNEL_ND,}, \
+};
+
+/* where to load files into memory */
+#define LOAD_ADDR ((unsigned char *)0x00200000)
+
+/* the app is the largest image */
+#define MAX_LOADSZ ausize[IDX_KERNEL]
+
+/*i2c address of the keypad status*/
+#define I2C_PSOC_KEYPAD_ADDR 0x53
+
+/* keypad mask */
+#define KEYPAD_ROW 3
+#define KEYPAD_COL 3
+#define KEYPAD_MASK_LO ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*4-4)))&0xFF)
+#define KEYPAD_MASK_HI ((1<<(KEYPAD_COL-1+(KEYPAD_ROW*4-4)))>>8)
+
+/* 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 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 block_dev_desc_t *get_dev (char*, int);
+extern int u_boot_hush_start(void);
+
+int
+au_check_cksum_valid(int idx, long nbytes)
+{
+ image_header_t *hdr;
+ unsigned long checksum;
+
+ hdr = (image_header_t *)LOAD_ADDR;
+
+ if (nbytes != (sizeof(*hdr) + ntohl(hdr->ih_size)))
+ {
+ printf ("Image %s bad total SIZE\n", aufile[idx]);
+ return -1;
+ }
+ /* check the data CRC */
+ checksum = ntohl(hdr->ih_dcrc);
+
+ if (crc32 (0, (uchar *)(LOAD_ADDR + sizeof(*hdr)), ntohl(hdr->ih_size))
+ != checksum)
+ {
+ 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;
+ /* check the easy ones first */
+#undef CHECK_VALID_DEBUG
+#ifdef CHECK_VALID_DEBUG
+ printf("magic %#x %#x ", ntohl(hdr->ih_magic), IH_MAGIC);
+ printf("arch %#x %#x ", hdr->ih_arch, IH_CPU_ARM);
+ printf("size %#x %#lx ", ntohl(hdr->ih_size), nbytes);
+ printf("type %#x %#x ", hdr->ih_type, IH_TYPE_KERNEL);
+#endif
+ if (nbytes < sizeof(*hdr))
+ {
+ printf ("Image %s bad header SIZE\n", aufile[idx]);
+ return -1;
+ }
+ if (ntohl(hdr->ih_magic) != IH_MAGIC || hdr->ih_arch != IH_CPU_PPC)
+ {
+ printf ("Image %s bad MAGIC or ARCH\n", aufile[idx]);
+ return -1;
+ }
+ /* check the hdr CRC */
+ checksum = ntohl(hdr->ih_hcrc);
+ hdr->ih_hcrc = 0;
+
+ if (crc32 (0, (uchar *)hdr, sizeof(*hdr)) != checksum) {
+ printf ("Image %s bad header checksum\n", aufile[idx]);
+ return -1;
+ }
+ hdr->ih_hcrc = htonl(checksum);
+ /* check the type - could do this all in one gigantic if() */
+ if ((idx == IDX_FIRMWARE) && (hdr->ih_type != IH_TYPE_FIRMWARE)) {
+ printf ("Image %s wrong type\n", aufile[idx]);
+ return -1;
+ }
+ if ((idx == IDX_KERNEL) && (hdr->ih_type != IH_TYPE_KERNEL)) {
+ printf ("Image %s wrong type\n", aufile[idx]);
+ return -1;
+ }
+ /* recycle checksum */
+ checksum = ntohl(hdr->ih_size);
+ /* for kernel and app the image header must also fit into flash */
+ if (idx != IDX_FIRMWARE)
+ checksum += sizeof(*hdr);
+ /* 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;
+ }
+ return 0;
+}
+
+
+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;
+
+ /* execute a script */
+ if (hdr->ih_type == IH_TYPE_SCRIPT) {
+ addr = (char *)((char *)hdr + sizeof(*hdr));
+ /* stick a NULL at the end of the script, otherwise */
+ /* parse_string_outer() runs off the end. */
+ addr[ntohl(hdr->ih_size)] = 0;
+ addr += 8;
+ parse_string_outer(addr, FLAG_PARSE_SEMICOLON);
+ return 0;
+ }
+
+ start = aufl_layout[idx].start;
+ end = aufl_layout[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 (hdr->ih_type == IH_TYPE_KERNEL) {
+ addr = (char *)hdr;
+ off = sizeof(*hdr);
+ nbytes = sizeof(*hdr) + ntohl(hdr->ih_size);
+ } else {
+ addr = (char *)((char *)hdr + sizeof(*hdr));
+#ifdef AU_UPDATE_TEST
+ /* copy it to where Linux goes */
+ if (idx == IDX_FIRMWARE)
+ start = aufl_layout[1].start;
+#endif
+ off = 0;
+ nbytes = ntohl(hdr->ih_size);
+ }
+
+ /* 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), ntohl(hdr->ih_size)) != ntohl(hdr->ih_dcrc)) {
+ 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;
+}
+
+
+/*
+ * 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, bitmap_first, cnt, old_ctrlc, got_ctrlc;
+ char *env;
+ long start, end;
+ char keypad_status1[2] = {0,0}, keypad_status2[2] = {0,0};
+
+ /*
+ * Read keypad status
+ */
+ i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status1, 2);
+ wait_ms(500);
+ i2c_read(I2C_PSOC_KEYPAD_ADDR, 0, 0, keypad_status2, 2);
+
+ /*
+ * Check keypad
+ */
+ if ( !(keypad_status1[0] & KEYPAD_MASK_HI) ||
+ (keypad_status1[0] != keypad_status2[0])) {
+ return 0;
+ }
+ if ( !(keypad_status1[1] & KEYPAD_MASK_LO) ||
+ (keypad_status1[1] != keypad_status2[1])) {
+ return 0;
+ }
+ 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");
+ return -1;
+ }
+ /* check whether it has a partition table */
+ stor_dev = get_dev("usb", 0);
+ if (stor_dev == NULL) {
+ debug ("uknown device type\n");
+ return -1;
+ }
+ if (fat_register_device(stor_dev, 1) != 0) {
+ debug ("Unable to use USB %d:%d for fatls\n",
+ au_usb_stor_curr_dev, 1);
+ return -1;
+ }
+ if (file_fat_detectfs() != 0) {
+ debug ("file_fat_detectfs failed\n");
+ }
+
+ /* initialize the array of file names */
+ memset(aufile, 0, sizeof(aufile));
+ aufile[IDX_FIRMWARE] = AU_FIRMWARE;
+ aufile[IDX_KERNEL] = AU_KERNEL;
+ /* 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;
+ /*
+ * 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;
+ }
+ /* 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, sizeof(image_header_t));
+ debug ("read %s sz %ld hdr %d\n",
+ aufile[i], sz, sizeof(image_header_t));
+ if (sz <= 0 || sz < sizeof(image_header_t)) {
+ 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, sizeof(image_header_t));
+ if (sz <= 0 || sz <= sizeof(image_header_t)) {
+ 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;
+ }
+ /* 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
+ }
+ usb_stop();
+ /* restore the old state */
+ disable_ctrlc(old_ctrlc);
+ return 0;
+}
+#endif /* CONFIG_AUTO_UPDATE */
projects / u-boot.git / commitdiff