tools: mkimage: split code into core, default and FIT image specific

[karo-tx-uboot.git] / tools / default_image.c

diff --git a/tools/default_image.c b/tools/default_image.c
new file mode 100644 (file)
index 0000000..f5bad47
--- /dev/null
+++ b/tools/default_image.c
@@ -0,0 +1,149 @@
+/*
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *             default_image specific code abstracted from mkimage.c
+ *             some functions added to address abstraction
+ *
+ * All rights reserved.
+ *
+ * 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 "mkimage.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+static image_header_t header;
+
+static int image_check_image_types (uint8_t type)
+{
+       if ((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT))
+               return EXIT_SUCCESS;
+       else
+               return EXIT_FAILURE;
+}
+
+static int image_check_params (struct mkimage_params *params)
+{
+       return  ((params->dflag && (params->fflag || params->lflag)) ||
+               (params->fflag && (params->dflag || params->lflag)) ||
+               (params->lflag && (params->dflag || params->fflag)));
+}
+
+static int image_verify_header (unsigned char *ptr, int image_size,
+                       struct mkimage_params *params)
+{
+       uint32_t len;
+       const unsigned char *data;
+       uint32_t checksum;
+       image_header_t header;
+       image_header_t *hdr = &header;
+
+       /*
+        * create copy of header so that we can blank out the
+        * checksum field for checking - this can't be done
+        * on the PROT_READ mapped data.
+        */
+       memcpy (hdr, ptr, sizeof(image_header_t));
+
+       if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
+               fprintf (stderr,
+                       "%s: Bad Magic Number: \"%s\" is no valid image\n",
+                       params->cmdname, params->imagefile);
+               return -FDT_ERR_BADMAGIC;
+       }
+
+       data = (const unsigned char *)hdr;
+       len  = sizeof(image_header_t);
+
+       checksum = be32_to_cpu(hdr->ih_hcrc);
+       hdr->ih_hcrc = cpu_to_be32(0);  /* clear for re-calculation */
+
+       if (crc32 (0, data, len) != checksum) {
+               fprintf (stderr,
+                       "%s: ERROR: \"%s\" has bad header checksum!\n",
+                       params->cmdname, params->imagefile);
+               return -FDT_ERR_BADSTATE;
+       }
+
+       data = (const unsigned char *)ptr + sizeof(image_header_t);
+       len  = image_size - sizeof(image_header_t) ;
+
+       checksum = be32_to_cpu(hdr->ih_dcrc);
+       if (crc32 (0, data, len) != checksum) {
+               fprintf (stderr,
+                       "%s: ERROR: \"%s\" has corrupted data!\n",
+                       params->cmdname, params->imagefile);
+               return -FDT_ERR_BADSTRUCTURE;
+       }
+       return 0;
+}
+
+static void image_set_header (void *ptr, struct stat *sbuf, int ifd,
+                               struct mkimage_params *params)
+{
+       uint32_t checksum;
+
+       image_header_t * hdr = (image_header_t *)ptr;
+
+       checksum = crc32 (0,
+                       (const unsigned char *)(ptr +
+                               sizeof(image_header_t)),
+                       sbuf->st_size - sizeof(image_header_t));
+
+       /* Build new header */
+       image_set_magic (hdr, IH_MAGIC);
+       image_set_time (hdr, sbuf->st_mtime);
+       image_set_size (hdr, sbuf->st_size - sizeof(image_header_t));
+       image_set_load (hdr, params->addr);
+       image_set_ep (hdr, params->ep);
+       image_set_dcrc (hdr, checksum);
+       image_set_os (hdr, params->os);
+       image_set_arch (hdr, params->arch);
+       image_set_type (hdr, params->type);
+       image_set_comp (hdr, params->comp);
+
+       image_set_name (hdr, params->imagename);
+
+       checksum = crc32 (0, (const unsigned char *)hdr,
+                               sizeof(image_header_t));
+
+       image_set_hcrc (hdr, checksum);
+}
+
+/*
+ * Default image type parameters definition
+ */
+static struct image_type_params defimage_params = {
+       .name = "Default Image support",
+       .header_size = sizeof(image_header_t),
+       .hdr = (void*)&header,
+       .check_image_type = image_check_image_types,
+       .verify_header = image_verify_header,
+       .print_header = image_print_contents,
+       .set_header = image_set_header,
+       .check_params = image_check_params,
+};
+
+void init_default_image_type (void)
+{
+       mkimage_register (&defimage_params);
+}