From bd744059cf959c8b9086978b32660efef5925b7d Mon Sep 17 00:00:00 2001 From: William Wilgus Date: Thu, 20 Aug 2020 19:19:55 -0400 Subject: Multiboot Firmware Root Redirect Firmware now includes rudimentary redirect functionality but this only supports /.rockbox in the root of the device This patch allows loading external drive and directory into root namespace Root Redirects can now be put into different folders For instance placing '/_test' into SD1/rockbox_main. will redirect to /<1>/_test/.rockbox Debug menu>Bootdata now has root directory listed in addition to RAW Bootdata Redirect root work from Michael Sevakis g#1556 Redirect will be updated if code refactor is ever done Requires Multiboot bootloader (already in main) Change-Id: I697b3d0499f85e789c3020bc2133fbe0023f72a2 --- firmware/include/dircache_redirect.h | 42 ++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'firmware/include') diff --git a/firmware/include/dircache_redirect.h b/firmware/include/dircache_redirect.h index 9a8de2fecd..e8cf8dc8f5 100644 --- a/firmware/include/dircache_redirect.h +++ b/firmware/include/dircache_redirect.h @@ -25,6 +25,12 @@ #include "dir.h" #include "dircache.h" +#if defined(HAVE_MULTIBOOT) && !defined(SIMULATOR) +#include "rb-loader.h" +#include "bootdata.h" +#include "crc32.h" +#endif + /*** ** Internal redirects that depend upon whether or not dircache is made ** @@ -132,11 +138,47 @@ static inline void volume_onmount_internal(IF_MV_NONVOID(int volume)) #else const char *path = PATH_ROOTSTR; #endif + +#if defined(HAVE_MULTIBOOT) && !defined(SIMULATOR) + static char rtpath[VOL_MAX_LEN+2] = RB_ROOT_CONTENTS_DIR; + static bool redirected = false; + int boot_volume = 0; + unsigned int crc = 0; + + crc = crc_32(boot_data.payload, boot_data.length, 0xffffffff); + if (crc == boot_data.crc) + { + root_mount_path(path, 0); /*root could be different folder don't hide*/ + boot_volume = boot_data.boot_volume; /* boot volume contained in uint8_t payload */ + //root_mount_path(path, volume == boot_volume ? NSITEM_HIDDEN : 0); + if (!redirected && volume == boot_volume) + { + if (get_redirect_dir(rtpath, sizeof(rtpath), volume, "", "") < 0) + { /* Error occurred, card removed? Set root to default */ + root_mount_path(RB_ROOT_CONTENTS_DIR, NSITEM_CONTENTS); + } + else + redirected = true; + } + if (redirected && volume == boot_volume) + root_mount_path(rtpath, NSITEM_CONTENTS); + } /*CRC OK*/ + else + { + root_mount_path(path, RB_ROOT_VOL_HIDDEN(volume) ? NSITEM_HIDDEN : 0); + if (volume == path_strip_volume(RB_ROOT_CONTENTS_DIR, NULL, false)) + root_mount_path(RB_ROOT_CONTENTS_DIR, NSITEM_CONTENTS); + } +#else + root_mount_path(path, RB_ROOT_VOL_HIDDEN(volume) ? NSITEM_HIDDEN : 0); #ifdef HAVE_MULTIVOLUME if (volume == path_strip_volume(RB_ROOT_CONTENTS_DIR, NULL, false)) #endif root_mount_path(RB_ROOT_CONTENTS_DIR, NSITEM_CONTENTS); + +#endif /* HAVE_MULTIBOOT */ + #ifdef HAVE_DIRCACHE dircache_mount(); #endif -- cgit