This uses the new unicode string literal feature that is available
now to greatly simplify the initialization of these special string
types. This makes them much more readable at a quick glance.
Change-Id: Iad8b49aa763486608e3bb7e83fb8abfb48ce0a7b
* DMA Bulk IN (ie our TX) results in sequential transfers 33-68% faster.
* DMA Bulk OUT (ie RX) is mostly stripped out due to complete brokenness.
* Interrupt and control endpoints remain PIO-driven.
Other improvements:
1) Use consistent endpoint references (no magic numbers)
2) Greatly enhanced logging
3) DMA support can be compiled out completely
4) Setting lockswitch will disable all DMA operations at runtime
5) Much more robust error checking and recovery
Change-Id: I57b82e655e55ced0dfe289e379b0b61d8fe443b4
swr/swl instructions used for word aligning were wrong. This
made memset() terribly broken. I can't imagine how it went
uncaught for soooo long. Spotted by Solomon Peachy.
I run unit tests for alignments 0,1,2,3
size 1, 2, 3, 4, 5, 63, 64, 65, 127, 128, 129;
and fill pattern 0x00 and other (since 0 is special case in this
implementation).
Change-Id: I513a10734335fe97734c10ab5a6c3e3fb3f4687a
Since we can catch exceptions like data aborts on read/write, it takes very
little to also catch exceptions in calls. When extending this with the catching
of illegal instructions, the call instruction now becomes much more robust and
also for address and instruction probing. Since we can catch several types of
exception, rename set_data_abort_jmp to set_exception_jmp. At the same time,
simplify the logic in read/write request handlers. Also fix a bug in ARM
jump code: it was using
stmia r1, {..., pc}
as if pc would get current pc + 8 but this is actually implementation defined
on older ARMs (typically pc + 12) and deprecated on newer ARMs, so rewrite the
code avoid that. The set_exception_jmp() function now also reports the exception
type.
Change-Id: Icd0dd52d2456b361b27c4776be09c3d13528ed93
Now that we now that jz4760b implements EBASE, we can use it to rebase
exceptions to use a k1seg address, that maps to the physical address of the
TCSM0. It requires to enable HAB1 to have this translation. This most the most
inefficient way to access tighly coupled memory ever, but it works.
Change-Id: I894ca929c9835696102eb2fef44b06e6eaf96d44
This is needed on the jz4760b because if some data is loaded to DRAM, then it
is cached and a disaster lurks if dcaches/icache are not flushed. Targets that
needs this must define CONFIG_FLUSH_CACHES in target-config.h and implement
target_flush_caches(). Currently MIPS has some generic code for mips32r1 that
requires to define {D,I}CACHE_SIZE and {D,I}CACHE_LINE_SIZE in target-config.h
Change-Id: I5a3fc085de9445d8c8a2eb61ae4e2dc9bb6b4e8e
The stub is quite versatile: it can be loaded using bootrom or another other
means (like factory boot on Fiio X1). It relocates itself to TCSM0 and provides
basic functionality (it does not recover from failed read/writes at the moment).
Change-Id: Ib646a4b43fba9358d6f93f0f73a5c2e9bcd775a7
0e2b490 introduced rework of usb driver which was broken. It was reverted
in f2da975 to restore hwstub functionality on ATJ.
This commit reenables usb rework AND fixes remining issues.
The problem was with 0 length OUT thransfers. Additionally
a few cleanups were made.
Change-Id: I529ea9ad6540509e9287ca7e1cd2b44369b03cbb
This reverts commit 0e2b4908d0.
Although I swear it was tested it apparently broke hwstub on atj.
I will need to investigate more whats going on. Revert for now.
Change-Id: I2ff3adf8c72bb0e53be7d81b975382adfb700eab
Rewrite the hwstub library in C++, with a clean and modular design.
The library was designed from the ground up to be aware of multithreading
issues and to handle memory allocation nicely with shared pointers.
Compared to the original library, it brings the following major features:
- support for JZ boot devices, it is very easy to add support for others
- support for network transparent operations (through sockets): both tcp
and unix domains are support
Change-Id: I75899cb9c7aa938c17ede2bb3f468e7a55d625b4
The current code assumed that READ/WRITE would produce atomic read/writes for
8/16/32-bit words, which in turned put assumption on the memcpy function.
Since some memcpy implementation do not always guarantee such strong assumption,
introduce two new operation READ/WRITE_ATOMIC which provide the necessary
tools to do correct read and write to register in a single memory access.
Change-Id: I37451bd5057bb0dcaf5a800d8aef8791c792a090
- drop support for PP500x: it's very different from other PP and although
it would be possible to support them, I don't have one to test the code
- make sure only the CPU is started
- add PP descriptor to report chip ID and revision
- add code in shell and lua to support pp (no register description yet)
- compile for ARMv4 because PP502x is an ARM7TDMI
Change-Id: I36c4e465dfc2cfdfe7433b2f65cc8f6f0720fe62
It is very similar to how e200tool from MrH works but uses the framework
of hwstub which is makes it completely trivial since we already have the
USB driver written.
Change-Id: I61cdc245d3f828c2682bcd6ecfed5a1cc0094139
In might be useful to load hwstub in an environment with the MMU active,
in which case care must be taken on the order in which things are done.
Mostly, one should not disable the MMU before moving stuff around. The code
assumes the linking address (0 currently) is identity mapped.
Change-Id: I8d54ce9e8cadcde2e08990353ca7a46803731ca7
The protocol has evolved a lot during the 2.x.y lifetime, bringing more
features which later got unused. This commit removes all the unused stuff
and simplifies everything:
- drop the feature mask: everything is mandatory or stalled on error
- remove the info request and put all static information in standard USB
descriptors which are part of the configuration descriptor (and can be
retrieved using the standard GetDescriptor request).
- remove the USB interface, we had only one anyway
- remove all endpoint descriptors
- remove the exit/atexit stuff, it never worked as intended anyway
- update the hwstub library and make it able to handle any device
- update the tools (mostly renaming and removing of code)
Change-Id: I1872bba7f4177fc3891180e8f944aab88f5bde31
Some targets like Sony NWZ use a watchdog, so we must disable it to prevent
spurious reboot when we take over
Change-Id: I138a8d7f9a1b089acb2d08d7f6c4a58e8b088b3a
Conditional no longer needed since ctr0.S is private to target, also setup
stack just before jumping to C code only
Change-Id: I74116239be9e87bbe53e8fa814c45f04f242f1c1
The old code would set CPU to 64MHz and HCLK to 9MHz but that's too low for
many things like usb and gpmi. So change HCLK to ~32MHZ.
Change-Id: I6459f25900e42603333cebccb7b0ed26c59640ad
Some older versions of the ROM (TA3 for example), use a 64 byte report size
instead of 1024, so hardcoding 1024 is just a bad idea.
Change-Id: I720c4465cfe2f519bffa307175614bba58766dce
Rename STOP command to EXIT, introduce ATEXIT, this gives better
control over the exit of the stub. Add stmp implementation.
Change-Id: I45442c8b88b9330d12ef439417ca5ffa1520477a
