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498 Commits

Author SHA1 Message Date
redoste 6f53fa7842
gdb: move recv buffer to the heap to support fx-9860G III smaller .data 2023-06-04 23:20:42 +02:00
redoste 5087a91101
gdb: make memory map XML more generic to ensure fx-9860G III support 2023-06-04 23:20:42 +02:00
redoste 7d3663483f
gdb: break before panicking in user code 2023-06-04 23:20:42 +02:00
redoste 6efcfa6018
ubc: panic when trying to break in code using register bank 1 2023-06-04 23:20:42 +02:00
redoste 0b7d8d6800
ubc: ignore breaks when no debug handler is set 2023-06-04 23:20:42 +02:00
redoste 9c22ecea8d
gdb: prevent TLB misses during arbitrary memory RW operations 2023-05-30 01:03:38 +02:00
redoste 02a97719ac
gdb: break when a message is recived during execution 
This behaviour implements support for breaking the add-in during
execution by pressing ^C in GDB without setting a breakpoint beforehand.
 2023-05-27 19:06:29 +02:00
redoste 33dae5d218
ubc: add a global lock to inform if a UBC break is being handled 2023-05-27 18:59:24 +02:00
redoste 21ff5c1d53
usb: expose the context of the interrupted function on USB interrupt 2023-05-27 18:52:05 +02:00
redoste 76c82beec6
intc: allow user-space handlers to access the interrupted context 
This workaround using a gint_call_t with an odd address is not realy the
cleanest idea but it helps keep the existing intc_generic_handler in
the 32 bytes size limit of the VBR space.
 2023-05-27 18:36:15 +02:00
redoste eca05ec64c
gdb: send memory map XML to GDB to enforce hw-breakpoints 2023-05-27 17:50:44 +02:00
redoste 2f6ee59d43
gdb: add memory write support 2023-05-24 23:30:29 +02:00
redoste 3aa11b4252
gdb: add register write support 2023-05-24 23:07:41 +02:00
redoste eab3184dbb
gdb: add "kill request" packet support by abort()ing the add-in 2023-05-24 22:22:54 +02:00
redoste 238bccddbe
gdb: add hw-breakpoint and single step support using the UBC 2023-05-24 22:21:01 +02:00
redoste aa0ff7b10b
ubc: basic User Break Controller driver 2023-05-24 22:21:01 +02:00
redoste 0bea485f4b
gdb: first implementation with basic memory and register read support 2023-05-21 19:49:23 +02:00
Lephe dcb876dfe0
bump version to 2.10.0 2023-04-02 00:10:13 +02:00
Lephe 82258b9f89
keysc: bind SHIFT+7+3+AC/ON to abort() for un-freeze attempts 2023-04-01 23:24:55 +02:00
Lephe eb49f0258d
usb: show prototypes of debug functions in non-debug mode 2023-04-01 23:24:21 +02:00
Lephe b5f0f08183
usb: use optimized DSP loop for read from module 2023-03-26 20:40:48 +02:00
Lephe 1423f40a96
usb: disable USB_LOG_TR() when no log is configured 
For some reason this has a *massive* impact on read performance, like
78 ms -> 20 ms on a full-screen read (177 kB) on the CG-50.
 2023-03-26 20:40:08 +02:00
Lephe 3a2a194693
usb: unaligned reading (release candidate on features) 
The only thing left on the bucket list is performance.
 2023-03-26 11:36:40 +02:00
Lephe 4983849510
usb: consolidate reading logic again, now beta-worthy 
This looks like it could work in the long term. The only issue that
really hasn't been addressed is how to use packet counters to cut
transactions when there's no ZLP, but we can leave that for later.
 2023-03-18 19:51:57 +01:00
Lephe fc1f510288
usb: consolidate reading mode (basic multi-segment reads now working) 2023-03-12 17:53:44 +01:00
Lephe c59b2f90fb
usb: prototype reading mode 
Currently only tested with short messages using the fxlink interface.
There is much to be expanded upon, but this is a worthy start.
 2023-03-04 18:06:38 +01:00
Lephe eb1f9a35a1
usb: use negative values for error codes 
This will allow usb_read_sync() to return a combined error code / size
read integer.
 2023-03-04 18:06:38 +01:00
Lephe f4e13afa84
usb: fix a missing PIPESEL access 
This resulted in a random PIPECFG access.
 2023-03-04 10:59:06 +01:00
Lephe 911691461f
usb: clarify functions used to access endpoint configuration 
The previous scheme was really unclear. Now, an endpoint_t carries all
of the endpoint info (instead of the global address being implicitly
its array index, which couldn't be returned).

An _endpoint address_ is the 8-bit value consisting of an endpoint
number (bits 0x0f) and a direction (bit 0x80).

The _global address_ of an endpoint is the address used to communicate
with the host, and it is unique. The _local address_ of an endpoint is
the interface-specific numbering that gint provides to allow interfaces
to compose without risks of address collisions.

The complete data for an endpoint can be queried with the new functions
usb_get_endpoint_by_*() which accept global addresses, local addresses,
and pipe numbers.
 2023-03-04 10:58:07 +01:00
Lephe aee67a76f3
usb: clear pipes/FIFOs during world switches, delay configuration 
* Clear pipes and FIFOs during world switches to avoid interference
  with the OS. LINK uses pipes 3 and 4, and attempts to add a second
  pipe to the fxlink interface (thus using pipe 4) would interfere with
  LINK and somehow prevent the pipe from being used (Wireshark captures
  showed no responses on that pipe). Forcing a blank state is a valid
  move because that state occurs naturally after a RESET, thus LINK and
  other add-ins must support it as well.

* Delay the application of configuration to the USB configuration stage
  (specifically, the DVST configured interrupt, even though technically
  we should do that in SET_CONFIGURATION 0). This is because we
  previously relied on world switches preserving pipe settings (by not
  changing them) to reconnect the gint driver after a world switch.
  This is no longer possible as the world switch now clears the pipes.
  The new timing makes the driver automatically re-configure as the
  connection restarts.
 2023-02-18 17:15:28 +01:00
Lephe c0671649df
usb: prevent double opening 
This could happen in gintctl's USB tracer and obviously cause all sorts
of problems.
 2023-02-18 16:48:28 +01:00
Lephe 53c67af52d
usb: fix wrong interface numbering (+ comments) 
This worked previously because the only interface (number 0) had its
interface descriptor in first position (position 0).
 2023-02-18 16:47:49 +01:00
Lephe 6910714c2c
asyncio: remove unused field asyncio_op_t.flying_w 2023-02-16 16:09:53 +01:00
Lephe af5c16a3d3
usb: massively improve writing logic 
* Move logic around tracking transfers to asyncio.c.

* Add a "short buffer" holding 0-3 bytes between writes, so that the
  driver performs only 4-byte writes in the FIFO and a short write in
  the commit, if needed.
  - This is partially due to me thinking at some point that degrading
    writing size was impossible, but it might actually be possible by
    writing to FIFO/FIFO+2 or FIFO/FIFO+1/FIFO+2/FIFO+3.
  - In any case I think this new approach wins on performance.

* Get rid of unit_size since we now always use 4 bytes.

* Add a waiting function which is used in usb_close() (and once tested
  should be used in world switches too).

* Eliminate some of the special cases for the DCP, though not all (in
  particular I can't get the commit to rely on the BEMP interrupt yet,
  nor can I properly clear PID to NAK when unbinding).
 2023-02-09 23:00:44 +01:00
Lephe 1a61e97ef0
mmu: provide read-only access to ITLB 2023-02-02 14:23:03 +01:00
Lephe a091efc894
usb: replace struct transfer with a more generic async. I/O op structure (WIP) 
This lays the ground for both generalization to reading and sharing
that logic with the serial driver.
 2023-01-31 16:04:35 +01:00
Lephe 6f758cd36c
defs: allow NULL callbacks in gint_call() 2023-01-31 16:04:35 +01:00
Lephe 18e0db3886
usb: improve driver with updated knowledge and prepare reading 
* Finish updating the register list
* Use RTC-based timeouts to not involve more interrupts
* Be a lot more conservative about PID=BUF
* Start setting up parameters and checking invariants for future
  bidirectional communications
 2023-01-31 16:04:35 +01:00
Lephe cf2b86deaa
usb: update module details with register analysis experiments 
Unknown writable bits and host-only registers were found.
 2023-01-28 13:10:03 +01:00
Lephe db50c9b192
kernel: more options in System ERROR screen 
* Add options to RESET, go to menu, or abort()
* Define weak symbols for driver functions so that low-level debugging
  add-ins can be linked with minimal drivers (CPU/INTC/MMU)
 2023-01-25 22:38:39 +01:00
Lephe 42853103aa
usb: remove incorrectly-ordered bits in USB registers 2023-01-25 16:28:20 +01:00
Lephe c28d06002f
ld: add support for FastLoad config for circuit10's Add-In Push 2023-01-17 09:53:58 +01:00
Lephe ac6b1c7d70
ld: generate linker scripts; add fxcg50_fastload.ld 2023-01-15 01:36:28 +01:00
Lephe 45881995e9
fs: initialize dynamically-allocated fd table 
Obvious oversight from 736b58f205.
 2023-01-14 22:28:27 +01:00
Lephe 70dccc29da
style: initialize non-trivially initialized pointer 
We always have c <= 15 but it's not structural enough that we can
outright skip initializing the pointer.
 2023-01-14 22:28:18 +01:00
Lephe 7e859169fe
cpg: add overclock save/restore functions 2023-01-05 20:25:44 +01:00
Lephe b3416dcc25
cpg: add overclock for SH3/SH4 fx-9860G and G-III (#23) 
Co-authored-by: Slyvtt <pillot.sylvain@gmail.com>
 2023-01-05 20:02:41 +01:00
Lephe 736b58f205
reduce static user RAM footprint for mono targets 
* Make INTC data const (it should've always been)
* Introduce GRODATA3/.gint.rodata.sh3 for that purpose
* Dynamically allocate file descriptor table
 2023-01-01 19:22:41 +01:00
Lephe 478fdaea76
keysc: don't emit KEYEV_DOWN for keys pressed at startup 2023-01-01 18:49:50 +01:00
Lephe d3b29c50e6
defs: use C++ min/max when compiling in C++ mode 2023-01-01 18:49:13 +01:00