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Marcin Bukat 79329c8f7c rk27xx: don't return from SD transfers with the lock held
sd_read_sectors() and sd_write_sectors() take sd_mtx and power the
controller, then check the requested range and return -1 on failure -
leaving the mutex held and the controller on. Check the range first.

With no card present numblocks is 0, so every request takes that path.
Rockbox mutexes are recursive for the owning thread, so the first thread
to touch the SD drive keeps working, and every other thread that does
blocks forever.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Change-Id: I16c2be3bde5c62946fdedaabe115b6c4bc330467
2026-09-30 14:43:00 +02:00
android chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
apps rk27generic: FM radio screen keys, tuner noted as an RDA5807P 2026-09-30 08:07:47 -04:00
backdrops ap80max: New hosted port 2026-08-13 17:55:06 -07:00
bootloader h1x0/h3x0: Get rid of redundant cut-down bidi_l2v() function 2026-09-29 10:16:26 -04:00
docs firmware: limit system_memory_guard() to coldfire targets 2026-09-23 13:12:48 -04:00
firmware rk27xx: don't return from SD transfers with the lock held 2026-09-30 14:43:00 +02:00
fonts chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
icons chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
lib flac: decode residuals that use all 32 bits 2026-09-30 08:24:15 -04:00
manual manual: Fix case of "iPod" 2026-09-30 07:58:19 -04:00
packaging 3ds: Port refactor. 2026-09-01 08:39:07 -04:00
tools imx233: re-enable utf8proc and associated functionality. 2026-09-29 22:39:49 -04:00
uisimulator Add "rbfs" prefix to native filesystem functions 2026-09-17 16:22:31 -04:00
utils misc: forums.rockbox.org -> www.rockbox.org/forums 2026-09-27 10:46:01 -04:00
wps ap80max: New hosted port 2026-08-13 17:55:06 -07:00
.gitattributes Add a gitattributes file for the migration. 2011-12-01 14:14:59 +00:00
.gitignore misc: Update gitignore to cover a bunch of utils/* binaries 2026-06-17 13:56:29 -04:00
.gitreview misc: Add a .gitreview file for better gerrit integration 2021-06-24 07:22:19 -04:00

               __________               __   ___.
     Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
     Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
     Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
     Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
                       \/            \/     \/    \/            \/

Build Your Own Rockbox

1. Clone 'rockbox' from git (or extract a downloaded archive).

   $ git clone git://git.rockbox.org/rockbox

     or

   $ tar xJf rockbox.tar.xz

2. Create a build directory, preferably in the same directory as the firmware/
   and apps/ directories. This is where all generated files will be written.

   $ cd rockbox
   $ mkdir build
   $ cd build

3. Make sure you have mips/m68k/arm-elf-gcc and siblings in the PATH. Make sure
   that you have 'perl' in your PATH too. Your gcc cross compiler needs to be
   a particular version depending on what player you are compiling for. These
   can be generated using the rockboxdev.sh script in the /tools/ folder of the
   source.

   $ which arm-elf-eabi-gcc
   $ which perl

4. In your build directory, run the 'tools/configure' script and enter what
   target you want to build for and if you want a debug version or not (and a
   few more questions). It'll prompt you. The debug version is for making a
   gdb version out of it. It is only useful if you run gdb towards your target
   Archos.

   $ ../tools/configure

5. *ploink*. Now you have got a Makefile generated for you.

6. Run 'make' and soon the necessary pieces from the firmware and the apps
   directories have been compiled, linked and scrambled for you.

   $ make
   $ make zip

7. unzip the rockbox.zip on your music player, reboot it and
   *smile*.

If you want to build for more than one target, just create several build
directories and create a setup for each target:

   $ mkdir build-fuzeplus
   $ cd build-fuzeplus
   $ ../tools/configure

   $ mkdir build-xduoox3
   $ cd build-xduoox3
   $ ../tools/configure

Questions anyone? Ask on the mailing list or on IRC. We'll be happy to help you!