== DETAILS
The current HID implementation assumes a very low-level USB library
is being used. This causes a problem on Wii U, because the Cafe OS
only exposes a high-level interface.
To get these functions exposed to the HID pad drivers, I had to make
three changes:
1. I added the legacy "send_control" function to the HID driver
interface
2. I modified the signature of pad_connection_pad_init() to send the
driver pointer instead of the function pointer
3. I updated the HID pad drivers to keep the pointer to the driver
instead of the function pointer, and updated the calls into the
send_control function as appropriate
4. I updated the HID drivers to use the new pad init signature
== TESTING
Untested, in theory it should work without a hitch because at this
point all I've done is abstract things a little. I still need to
update the HID pad drivers to use the Wii U-specific calls as
appropriate.
== DETAILS
Looking at the apple input driver gave me an idea--moving the
HID driver into the wiiu_input_t data instead of piggy-backing
it off the wiiu_joypad driver.
- Remove changes to wiiu_joypad
- Add equivalent to wiiu_input
This is probably broke as hell. Haven't tried to compile.
== DETAILS
- Added entrypoints into `input/connect/joypad_connection.c` to allow
a max value to be passed in, instead of using single macro value
- Created a hand-off between the HID attach handler and the worker thread
- Created a pad initializer in `wiiu_hid.c` leveraging the new functionality
added to `joypad_connection.c`
== TESTING
Compiles cleanly. At best, doesn't do anything. Might crash--not ready
to test quite yet.
== DETAILS
After wasting some cycles trying to isolate a crash, I went back to
basics.
I enabled the network logging, and put in a bunch of logging lines,
and noticed that the HID thread wasn't actually starting.
I did quite a bit of experimenting, working with different
memory alignments, and finally got it working.
== TESTING
As you can see, I put a log output inside the worker thread. When
I run the build, I can see the TICK messages. I can also see that
the thread shuts down as expected.
Also! The HID callback works as expected too! I have the GC
adapter, and when I register the HID callback it fires and I get the
following data:
[INFO] USB device attach event
[INFO] handle: 2058729
[INFO] physical_device_inst: 0
[INFO] vid: 0x7e05
[INFO] pid: 0x3703
[INFO] interface_index: 0
[INFO] sub_class: 0
[INFO] protocol: 0
[INFO] max_packet_size_rx: 37
[INFO] max_packet_size_tx: 5
Note that these are raw dumps of the data passed to the method,
so e.g. the VID/PID might be byte-swapped from how they're usually
represented.
Have not done the stress test to try to reproduce the crash.
== DETAILS
The old code was crashing; I did a minimalized branch and the crash
went away, so I'm bringing that over here. Meaning I'll have to
redo some of the other work I'd put in, but oh well.
(now watch it start crashing again)
== TESTING
Can confirm it builds. Wii U is busy ATM so I can't test.
== DETAILS
I did a minimalist edit of the HID thread that stripped out all
HID* syscalls, and this stopped the crashing. I then re-added just
the HIDSetup() and HIDTeardown() calls, and the crash came back.
This smells like an OS bug. To work around it, I've put the
HIDSetup() and HIDTeardown() calls into the app init/shutdown
section, so they only get called once in the application lifetime
and not each time the input driver is initialized.
== DETAILS
I think I've about got the thread startup/teardown code worked
out. Logically, anyway, if not accurately.
The challenge has been figuring out how best to integrate the
features of HID2VPAD.
I found `input/connect/joypad_connection.c` and this seems like
the logical place for:
- Special-case driver for the Switch Pro controller
- Any other special cases HIDTOVPAD supports that core RetroArch
doesn't
- Parsing of HIDTOVPAD config file to add custom button mapping
== TESTING
Compiles. Haven't tested with a real Wii U. Probably doesn't work
though. I very likely have the threading bit wrong.
== DETAILS
Looking at the other HID USB drivers, it looks like the typical
implementation is to start up a background thread to do the
polling, rather than wait for RA to invoke the poll() method.
This commit sets up the skeleton of the background thread:
- The thread gets created in init()
- The thread gets stopped in free()
Right now the body of the thread is a 10ms sleep.
== TESTING
It compiles cleanly, and links. Don't know if it actually works.
== DETAILS
I think I've about got the thread startup/teardown code worked
out. Logically, anyway, if not accurately.
The challenge has been figuring out how best to integrate the
features of HID2VPAD.
I found `input/connect/joypad_connection.c` and this seems like
the logical place for:
- Special-case driver for the Switch Pro controller
- Any other special cases HIDTOVPAD supports that core RetroArch
doesn't
- Parsing of HIDTOVPAD config file to add custom button mapping
== TESTING
Compiles. Haven't tested with a real Wii U. Probably doesn't work
though. I very likely have the threading bit wrong.
== DETAILS
Looking at the other HID USB drivers, it looks like the typical
implementation is to start up a background thread to do the
polling, rather than wait for RA to invoke the poll() method.
This commit sets up the skeleton of the background thread:
- The thread gets created in init()
- The thread gets stopped in free()
Right now the body of the thread is a 10ms sleep.
== TESTING
It compiles cleanly, and links. Don't know if it actually works.
== DETAILS
We discovered that the controller_patcher code was causing
the WiiU to intermittently crash when switching ROMs.
Changes:
- Completely extricates the controller_patcher code
- Create a skeleton wiiu_hid driver
- Wire up the build system to build/link it successfully
== TESTING
Has not been tested. Probably doesn't crash, since the
skeleton driver is just a copy of the null driver.
This resolves an issue where the default freebsd compiler does not
include /usr/local/include which contains important headers such as
GL/gl.h and results in the check_header function failing to find them.
Unfortunately pkg-config/pkgconf will not work here for two reasons.
1. It does not seem able to actually check for gl.h which RetroArch
explicitly needs.
2. Not all systems have a pkg-config implementation so we will still
have to fall back to checking for gl.h...
Fixes https://github.com/libretro/RetroArch/issues/5958
RetroArch is currently returning only achievements with flag 3 from the site, regardless of whether "Test Unofficial" is on or not. This change makes RetroArch return every achievement from the site when this the option is on or only those marked with Flag 3 (core cheevos) when off.
