Add boot data support to rockbox.

Bootdata is a special location in the Firmware marked by a magic header
The bootloader is able to copy information to the firmware by locating
this struct and passing data to the firmware when it is loaded but
before it is actually executed

Data is verified by a crc of the bootdata


Change-Id: Ib3d78cc0c3a9d47d6fe73be4747a11b7ad6f0a9e

1 files changed, 30 insertions, 0 deletions

diff --git a/apps/debug_menu.c b/apps/debug_menu.c
index 4947f30695..0a1ceee2e0 100644
--- a/apps/debug_menu.c
+++ b/apps/debug_menu.c
@@ -129,6 +129,10 @@
 
 #include "talk.h"
 
+#if defined(HAVE_BOOTDATA) && !defined(SIMULATOR)
+#include "bootdata.h"
+#endif
+
 static const char* threads_getname(int selected_item, void *data,
                                    char *buffer, size_t buffer_len)
 {
@@ -2539,7 +2543,30 @@ static bool dbg_skin_engine(void)
 }
 #endif
 
+#if defined(HAVE_BOOTDATA) && !defined(SIMULATOR)
+static bool dbg_boot_data(void)
+{
+    unsigned int crc = 0;
+    struct simplelist_info info;
+    info.scroll_all = true;
+    simplelist_info_init(&info, "Boot data", 1, NULL);
+    simplelist_set_line_count(0);
+    simplelist_addline("Magic: %.8s", boot_data.magic);
+    simplelist_addline("Length: %lu", boot_data.length);
+    simplelist_addline("CRC: %lx", boot_data.crc);
+    crc = crc_32(boot_data.payload, boot_data.length, 0xffffffff);
+    (crc == boot_data.crc) ? simplelist_addline("CRC: OK!") :
+                             simplelist_addline("CRC: BAD");
+    for (unsigned i = 0; i < boot_data.length; i += 4)
+    {
+        simplelist_addline("%02x: %02x %02x %02x %02x", i, boot_data.payload[i],
+            boot_data.payload[i+1], boot_data.payload[i+2], boot_data.payload[i+3]);
+    }
 
+    info.hide_selection = true;
+    return simplelist_show_list(&info);
+}
+#endif
 /****** The menu *********/
 static const struct {
     unsigned char *desc; /* string or ID */
@@ -2652,6 +2679,9 @@ static const struct {
         {"Debug scrollwheel", dbg_scrollwheel },
 #endif
         {"Talk engine stats", dbg_talk },
+#if defined(HAVE_BOOTDATA) && !defined(SIMULATOR)
+        {"Boot data", dbg_boot_data },
+#endif
 };
 
 static int menu_action_callback(int btn, struct gui_synclist *lists)