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mojyack 2291aa24f2 usb: refactor control request handling
this commit is a combination of the following changes, which
significantly refactors usb core and class drivers.

1. unify usb buffers of each class driver to reduce iram usage
currently, many class drivers allocate their own buffer to receive
control out data, which is a waste of iram.
share one common buffer for that usage to address the issue.

2. simplify control request handling by implicitly receiving write
   request data packets
change 1 above fixed the data destination. therefore, having the core
receive the data allows us to reduce the class driver's work and
simplifies the api.

3. enhance usb core's control request handling and unify the legacy
   driver api
in order to implement change 2, both the legacy and new driver apis
should be supported. so that, using the designware driver as a
reference, the new driver api functionality is move into usb core.
this simplifies the usb device drivers by requiring them to implement
only the functionalities equivalent to the legacy api.

tested with ipodvideo(arc) and erosqnative(designware)

Change-Id: I3627daa90278751f599e2108ec150ec3f8f6c524
2026-05-25 12:42:36 +01:00
android build: instead of 'ifdef NODEPS' use 'ifneq ($NODEPS,)' 2025-03-29 14:33:20 -04:00
apps gui: list-skinned: fix scrollbar lag 2026-05-25 07:33:57 -04:00
backdrops Rockbox for the HiBy R3 Pro II/R1 2025-12-27 15:44:54 -05:00
bootloader bootloader: ipodnano2g: fix mcr/mrc usage for clang 2026-05-16 12:01:36 -04:00
docs usb: refactor control request handling 2026-05-25 12:42:36 +01:00
firmware usb: refactor control request handling 2026-05-25 12:42:36 +01:00
fonts FS#9060: Add the WinQangYi-Song BOLD fonts in 9, 10, 11, and 12pt. 2025-11-19 08:33:07 -05:00
icons Revert Non-Alpha Updated 8x8 tango icons 2020-10-25 16:21:58 +00:00
lib rbcodec: Fix build failure with DEBUG but without LOGF 2026-05-19 19:48:41 -04:00
manual manual: fix skinned list tag mixup (FS#13895) 2026-05-19 17:11:42 +02:00
packaging 3ds: Makefile improvements 2026-03-13 17:52:32 +02:00
tools tools: fix reggen is not cleaned 2026-05-04 20:33:52 -04:00
uisimulator simulator: support usb_inserted %bu tag (FS#13843) 2026-05-19 13:37:28 -04:00
utils Change which macro is used to check for Windows targets 2026-04-18 13:43:49 -04:00
wps Rockbox for the HiBy R3 Pro II/R1 2025-12-27 15:44:54 -05:00
.gitattributes Add a gitattributes file for the migration. 2011-12-01 14:14:59 +00:00
.gitignore tools: add RegGen utility 2025-12-29 18:51:56 -05:00
.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!