Commit Graph

4980 Commits

Author SHA1 Message Date
Paul Sokolovsky
3376875bc8 unix/modtime: sleep(): Return early if KeyboardInterrupt is pending
As set by signal handler. This assumes that exception will be raised
somewhere else, which so far doesn't happen for single function call.
Still, it makes sense to handle that in some common place.
2015-12-02 00:37:25 +02:00
Damien George
0d9b450701 stmhal: Make uart.write() function correctly for timeout=0.
In non-blocking mode (timeout=0), uart.write() can now transmit all of its
data without raising an exception.  uart.read() also works correctly in
this mode.

As part of this patch, timout_char now has a minimum value which is long
enough to transfer 1 character.

Addresses issue #1533.
2015-11-30 17:29:52 +00:00
Ryan Shaw
f99491cbf7 stmhal: uart.any() function now returns number of bytes available. 2015-11-30 13:07:20 +00:00
Paul Sokolovsky
bd33aa313e unix/moduselect: Support growing of poll array. 2015-11-30 00:54:14 +02:00
danicampora
5d8164167e cc3200: Correct buffer offset in serial flash diskio module. 2015-11-29 18:34:51 +01:00
Damien George
b8cfb0d7b2 py: Add support for 64-bit NaN-boxing object model, on 32-bit machine.
To use, put the following in mpconfigport.h:

    #define MICROPY_OBJ_REPR (MICROPY_OBJ_REPR_D)
    #define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_DOUBLE)
    typedef int64_t mp_int_t;
    typedef uint64_t mp_uint_t;
    #define UINT_FMT "%llu"
    #define INT_FMT "%lld"

Currently does not work with native emitter enabled.
2015-11-29 14:25:36 +00:00
Damien George
999cedb90f py: Wrap all obj-ptr conversions in MP_OBJ_TO_PTR/MP_OBJ_FROM_PTR.
This allows the mp_obj_t type to be configured to something other than a
pointer-sized primitive type.

This patch also includes additional changes to allow the code to compile
when sizeof(mp_uint_t) != sizeof(void*), such as using size_t instead of
mp_uint_t, and various casts.
2015-11-29 14:25:35 +00:00
Damien George
cbf7674025 py: Add MP_ROM_* macros and mp_rom_* types and use them. 2015-11-29 14:25:04 +00:00
Damien George
94fe6e523d py/gc: Move away from using mp_uint_t, instead use uintptr_t and size_t.
The GC works with concrete pointers and so the types should reflect this.
2015-11-29 14:25:04 +00:00
Damien George
254cfa6c31 py: Use uintptr_t instead of mp_uint_t in MP_TAGPTR_* macros. 2015-11-29 14:25:04 +00:00
Damien George
9f6976b74e py: Make mp_setup_code_state take concrete pointer for func arg. 2015-11-29 14:25:04 +00:00
Damien George
278f3592d4 extmod/modmachine: Use uintptr_t instead of mp_uint_t for address type. 2015-11-29 14:25:04 +00:00
Damien George
5d66b427e2 py/emit: Change type of arg of load_const_obj from void* to mp_obj_t. 2015-11-29 14:25:04 +00:00
Damien George
c3f64d9799 py: Change qstr_* functions to use size_t as the type for str len arg. 2015-11-29 14:25:04 +00:00
Damien George
4e7107a572 py: Change mp_print_strn_t func type to use size_t for the str length. 2015-11-29 14:25:04 +00:00
Paul Sokolovsky
fad7d9317b unix/modtime: Unbreak Windows build after changes to check select() result. 2015-11-29 14:31:58 +02:00
Paul Sokolovsky
0bb57bf5bf unix/modtime: sleep(): Automatically restart after receiving EINTR.
THis is required to deal well with signals, signals being the closest
analogue of hardware interrupts for POSIX. This is also CPython 3.5
compliant behavior (PEP 475).

The main problem implementing this is to figure out how much time was
spent in waiting so far/how much is remaining. It's well-known fact that
Linux updates select()'s timeout value when returning with EINTR to the
remaining wait time. Here's what POSIX-based standards say about this:
(http://pubs.opengroup.org/onlinepubs/9699919799/functions/pselect.html):

"Upon successful completion, the select() function may modify the object
pointed to by the timeout argument."

I.e. it allows to modify timeout value, but doesn't say how exactly it is
modified. And actually, it allows such modification only "upon successful
completion", which returning with EINTR error hardly is.

POSIX also allows to request automatic EINTR restart for system calls using
sigaction call with SA_RESTART flag, but here's what the same document says
about it:

"If SA_RESTART has been set for the interrupting signal, it is
implementation-defined whether the function restarts or returns with
[EINTR]."

In other words, POSIX doesn't leave room for both portable and efficient
handling of this matter, so the code just allows to manually select
Linux-compatible behavior with MICROPY_SELECT_REMAINING_TIME option,
or otherwise will just raise OSError. When systems with non-Linux behavior
are found, they can be handled separately.
2015-11-29 14:21:06 +02:00
Paul Sokolovsky
9d0d6d3830 examples/accel_i2c.py: Switch to "machine" module. 2015-11-29 02:56:26 +02:00
Paul Sokolovsky
698a6a9d7d unix/moduselect: poll.register(): Reuse freed entries in poll array. 2015-11-29 00:06:51 +02:00
Paul Sokolovsky
19920e25f9 unix/moduselect: Fix bug in poll.poll() scanning loop. 2015-11-28 17:34:46 +02:00
Damien George
0786716c5a py/asmx86: Fix function definition to use int32_t instead of int. 2015-11-27 14:06:53 +00:00
Damien George
7a5a4fe271 unix/unix_mphal: Use size_t instead of mp_uint_t in stdout_tx_strn decls. 2015-11-27 14:03:53 +00:00
Damien George
88a9103b3c py/binary: Make use of MP_ALIGN. 2015-11-27 12:05:11 +00:00
Dave Hylands
3048433809 stmhal: Make stm.mem* support large integers.
With these you can now do things like:

stm.mem32[0x20000000] = 0x80000000

and read 32-bit values. You can also read all the way to the end
of memory using either stm.mem32[0xfffffffc] or stm.mem32[-4].

IRQs shouldn't use mem32 at all since they'd fail if the top 2 bits
weren't equal, so IRQs should be using 16-bit I/O.
2015-11-26 22:19:42 +00:00
Paul Sokolovsky
61e85a8ce0 pic16bit: Use global MICROPY_NO_ALLOCA setting. 2015-11-26 23:11:38 +02:00
Dave Hylands
061eb6fa6b stmahl: Fix usbd_conf.c for devices which don't have USB_HS at all.
The STMCube examples define both USE_USB_HS and USE_USB_HS_IN_FS when they
use the HS in FS mode.

The STM32F401 doesn't have a USB_HS at all, so the USB_OTG_HS instance
doesn't even exist.
2015-11-26 16:17:26 +00:00
Paul Sokolovsky
7dec35d7cc unix/modos: Remove duplicate level of #if MICROPY_PY_OS_STATVFS. 2015-11-26 17:46:26 +02:00
Dave Hylands
364bb61df3 stmhal: Allow make DEBUG=1 to build 2015-11-26 00:04:34 +00:00
Tobias Badertscher
8844d031e4 stmhal: Add support for the STM32F429I-DISCO kit by STMicro. 2015-11-25 23:53:26 +00:00
Paul Sokolovsky
f32020ef3d py/mpconfig.h: Allow to build without alloca() for ANSI C compliance.
Define MICROPY_NO_ALLOCA=1 and memory will be allocated from heap instead
and freed by garbage collection.
2015-11-25 23:24:51 +02:00
Paul Sokolovsky
f0fbab7ca7 extmod/fsusermount: Make configurable with MICROPY_FSUSERMOUNT. 2015-11-25 13:19:36 +02:00
Paul Sokolovsky
3a1bbcc2ef extmod: Move fsusermount.c from stmhal for cross-port reuse. 2015-11-25 13:19:36 +02:00
Dave Hylands
c8437f97ae stmhal: Increase the priority of UART IRQ.
The UARTs have no FIFOs, so if interrupts are disabled
for more than a character time (10 usec at 1 Mbit/sec)
then characters get dropped.

The overhead for handling a UART ISR is about 0.5 usec,
so even at baud rates of 1 Mbit/sec this only corresponds
to about 5% of the CPU. Lower baud rates will have less
of an impact.
2015-11-25 08:03:44 +00:00
Paul Sokolovsky
90202b4c0d esp8266/modesp: Implement flash_read(offset, size_bytes) function.
Based on vendor API documentation, untested on real hardware.
2015-11-24 23:29:26 +02:00
Paul Sokolovsky
ff8c4188f4 tests/run-tests: Improve robustness of REPL tests.
Unconditionally wait for MicroPython banner. On overloaded systems, when
using emulators, etc. initial executable startup may take more than 20ms.
2015-11-24 19:52:30 +02:00
Damien George
65888e2006 stmhal: Process storage idle tick handler in different slot to DMA. 2015-11-24 16:57:13 +00:00
Damien George
36bd10779c stmhal: In SysTick IRQ handler, make uwTick variable non-volatile.
uwTick can only change in the SysTick IRQ so this IRQ function does not
need to take special care with this variable.  It's important to make
this IRQ function as efficient as possible.
2015-11-24 16:23:54 +00:00
Damien George
e99e6c883d stmhal: Move flash storage idle tick handler from TIM3 to SysTick.
Using SysTick to do the counting and dispatch of the flash storage idle
handler is more efficient than requiring a dedicated hardware timer.
No new counter is needed, just the existing uwTick variable.  The
processing is not actually done in the SysTick IRQ, it is deferred to
the flash IRQ (which runs at lower priority).
2015-11-24 16:18:07 +00:00
Damien George
3cfb02f166 stmhal/irq: Set all IRQ subpriorities to 0, since they aren't used. 2015-11-24 15:56:33 +00:00
Damien George
18820471ae stmhal/irq: Add comment about SDIO priority being higher than DMA. 2015-11-24 15:51:07 +00:00
Damien George
22bd23114a stmhal: On SysTick IRQ, only process one DMA channel at a time.
This can be generalised if/when more processing is needed by SysTick.

Thanks to @chuckbook for the idea.
2015-11-24 15:44:16 +00:00
Damien George
9936aa3f87 stmhal: Save RAM and ROM by making SD DMA init structure const for tx/rx. 2015-11-24 15:44:16 +00:00
Damien George
522d454e34 stmhal: Small simplification of code to tickle DMA idle counter. 2015-11-24 15:44:16 +00:00
stijn
3baf6b5319 windows/py: Support 64bit mingw-w64 builds
- add mp_int_t/mp_uint_t typedefs in mpconfigport.h
- fix integer suffixes/formatting in mpconfig.h and mpz.h
- use MICROPY_NLR_SETJMP=1 in Makefile since the current nlrx64.S
  implementation causes segfaults in gc_free()
- update README
2015-11-24 17:34:14 +02:00
stijn
a58fa27c24 windows: Cleanup makefile
The BSD stuff is a copy from the unix makefile but at least there it
makes some sense, a windows makefile on BSD doesn't.
The -lmman flag is probably for mmap functions but there is no other build
support for it on windows so just that flag won't cut it anyway.
2015-11-24 17:34:14 +02:00
stijn
bf1570cb25 nlr: Use single preprocessor symbol to check if building on Windows 2015-11-24 17:34:14 +02:00
Dave Hylands
6edffd0df5 stmhal: Add dma support for sdcard.
This started out using IgorLektorovEpam work in PR #1389
and reworked it.
2015-11-24 09:37:25 +00:00
Dave Hylands
b677f03407 stmhal: Turn off DMA clocks when idle for 100 msec
Turning on each DMA block increases the current consumption
by about 8 mA. This code adds an idle timer for each DMA
block and turns off the clocks when no streams are in use
for 128 msec. Having a small timeout allows for improved
performance when back-to-back transfers are being performed.

The 128 msec is basically a guess.
2015-11-24 09:37:25 +00:00
Dave Hylands
9f5486c7e2 stmhal: Put IRQs into priority order.
- added some comments to explain the priority/sub-priority.
- adds an entry for SDIO (to be used in a later patch)
- increases DMA priority above USB so that DMA can be used
  for sdcard I/O when using USB Mass Storage.
2015-11-24 09:37:25 +00:00
Damien George
056abbcf31 stmhal: Fix unused variables when HW_CLK_LAST_FREQ not defined. 2015-11-23 23:52:09 +00:00