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75 commits

Author SHA1 Message Date
Angus Gratton
b03f279f74 mbedTLS: Add ESP8266 hardware entropy source discovered by @foogod 
Addresses #3, provided turns out to be an effective HWRNG.
 2015-09-20 21:15:30 +10:00
Angus Gratton
3aff91c85c Rename GPIO_CONF_PUSH_PULL to GPIO_CONF_OPEN_DRAIN 
Seems I got the functionality of this bit inverted when
initially testing.

In testing it also seems open drain mode is ignored on some pins, which
still source current. Needs more investigation though (may be pullups
internal to the ESP modules or set by default in software.)

Relates to #45
 2015-09-20 21:13:38 +10:00
Angus Gratton
f31daa7f9a iomux: Fix setting of invalid bits when masking in iomux fields 
Fixes regression from 2a939e97

Part of issue #45
 2015-09-20 21:13:38 +10:00
Angus Gratton
6c06e5e91e common_macros: Include sys/cdefs.h, defines _Static_assert among others 2015-09-20 21:13:38 +10:00
Angus Gratton
1c8017484c Move c++ operators back to link-time resolutions, part of 'core' 
This reverts commit e9b1df5cb5.
 2015-09-20 21:13:38 +10:00
Angus Gratton
7be365ef08 gpio.h: Explicit cast to enum type (needed for g++) 2015-09-20 21:13:38 +10:00
Angus Gratton
6416fe7329 Post-merge cleanup of extras/cpp_support 2015-09-20 21:13:38 +10:00
Angus Gratton
94fabc6ceb Add basic C++ new/delete operators, as contributed by @mikejac in #24 2015-09-20 21:13:38 +10:00
Angus Gratton
cc97067fa1 Add C++ support to Makefile, and proof-of-concept simple.cpp example 
This is a work in progress based on @mikejac's work.

Missing:
* No 'new' operator.
* I don't think STL is currently supported.
 2015-09-20 21:13:38 +10:00
Michael Jacobsen
372827ac42 Mostly updated header files for use in C++ 2015-09-20 21:13:38 +10:00
Angus Gratton
f47aa77982 Moved DoubleLoadStorageHandler to end of functions, improve fast path l8ui performance 
This allows a conditional branch that previously required a full jump instruction not to require it.
 2015-09-15 15:09:42 +10:00
Angus Gratton
9cd23e08a4 Fix performance regression in 3911a94cc 2015-09-15 15:00:56 +10:00
Angus Gratton
7d779389ab unaligned_load: Fix sign extension, add test case for sign extension 
H/T to @foogod again for this.
 2015-09-15 12:00:32 +10:00
Angus Gratton
c7a7dfdf82 Remove the unaligned load handler to its own source file as it was getting quite complex 
The downside here is needing to use #include so the 'beq' in the
exception vector can land on it directly, save an instruction.

There might be a better way to do this, but it seems hard to "curate"
the order that symbols appear in each section.
 2015-09-15 11:34:21 +10:00
Angus Gratton
3911a94cc8 Remove one more branch from l8ui code path 
Thanks for @foogod for the heads-up on this.
 2015-09-15 11:01:21 +10:00
Angus Gratton
26e1ce325e Fix sign extension as suggested by @foogod 
Also removes a branch from l8ui path, saves some cycles
 2015-09-14 18:30:11 +10:00
Angus Gratton
259c9b643f Exception vectors: Remove no-op syscallhandler 2015-09-14 18:17:45 +10:00
Angus Gratton
0e0c5d89b8 NMI exception handler: Fix reserving too much RAM for registers 2015-09-14 17:43:29 +10:00
Angus Gratton
9c15b757d3 Exception handlers: remove unused NMIHandlerAddress 2015-09-14 17:22:50 +10:00
Angus Gratton
0432ae3745 Use GPIO2 for led_debug.S 2015-09-14 17:20:00 +10:00
Angus Gratton
45d4e0da2d Exception vectors: Rearrange to use absolute offets instead of .align hacks 2015-09-14 17:20:00 +10:00
Angus Gratton
a5a179beef Extended unaligned load support to work from DoubleExceptionVector 
Allows handling bad loads that occur inside level 1 exception handlers.
 2015-09-14 17:20:00 +10:00
Angus Gratton
ac0a947453 Merge branch 'master' into experiments/unaligned_load 2015-09-10 08:19:42 +10:00
Angus Gratton
1d7bfeeccd Merge branch 'fix/int32_t' 
Closes #42
 2015-09-09 16:23:31 +10:00
Angus Gratton
7e73693898 Rework component makefiles to have a default <component>_ROOT 
This fixes a long-standing bug where build directories sometimes
expanded many levels deeper than they should have.

Component names can now no longer contains slashes (ie the component
name for 'extras/i2c' is now just 'i2c')
 2015-09-08 09:59:59 +10:00
Angus Gratton
7ed064a750 libc: Redefine int32_t/uint32_t as 'int' not 'long' 
libc built from projectgus/newlib-xtensa@0077776963

Closes #42
 2015-09-05 13:37:00 +10:00
Angus Gratton
920ee8bf85 libc syscalls: ENOSYS implementations for open,fstat,close,lseek 
Closes #41
 2015-09-03 11:45:52 +10:00
Angus Gratton
568ebc0fdc libc read()/write() syscalls - return EBADF if fd is not stdin/stdout as applicable 
As discussed in #41

Also fixes indent in _read_r
 2015-09-03 11:34:54 +10:00
Alex Stewart
b0206d0ca6 Fix broken UART(i) definition 2015-08-25 22:31:47 -07:00
Alex Stewart
e2e841c660 Remove 'packed' attribute from all regs structs 2015-08-25 17:13:13 -07:00
Alex Stewart
2a939e97b5 Remove unnecessary AND for VAL2FIELD macro 
Added VAL2FIELD_M / SET_FIELD_M for rare cases when there might actually be some need for it.
 2015-08-25 17:07:06 -07:00
Angus Gratton
22d35ed5f2 Merge pull request #29 from foogod/issue_8 
Add more *_regs.h definitions
 2015-08-24 16:14:19 +10:00
Angus Gratton
050b17adbe Add a comment explaining commented out REG_BASE lines 
Change was part of #27
 2015-08-22 17:39:25 +10:00
Alex Stewart
2f3b82812b Add esp/rtcmem_regs.h 2015-08-21 14:20:00 -07:00
Alex Stewart
fdbb361a60 Fix a couple of struct def issues with 2 previous commits 2015-08-21 14:06:38 -07:00
Alex Stewart
0b6dfb6080 Add more regs to esp/dport_regs.h 
Added a bunch of definitions based on info in http://esp8266-re.foogod.com/wiki/Memory_Map#dport0
 2015-08-21 13:59:20 -07:00
Alex Stewart
e88b5b8c4b Add esp/uart_regs.h and esp/spi_regs.h 2015-08-21 13:56:23 -07:00
Alex Stewart
1ebb85b150 rename GPIO_CONF_DRIVER_ENABLE back to GPIO_CONF_PUSH_PULL 2015-08-21 09:54:20 -07:00
Alex Stewart
8263fce80f Fix leftover IOMUX_FUNC_A/D references 2015-08-19 16:53:02 -07:00
Alex Stewart
d2231b7ff5 Cleanup a few comments in *_regs.h files 2015-08-19 16:50:56 -07:00
Alex Stewart
177ad281aa Add esp/wdt_regs.h 2015-08-19 16:48:11 -07:00
Alex Stewart
4fa66ca391 Added esp/timer_regs.h and esp/dport_regs.h 2015-08-19 11:34:18 -07:00
Alex Stewart
b271e19b51 Replace stdint.h with esp/types.h in gpio_regs.h 2015-08-19 09:05:03 -07:00
Alex Stewart
b84a69168f Fix cut-paste error in gpio_regs.h comment 2015-08-19 09:03:18 -07:00
Alex Stewart
fc1a1a7d0a Add esp/gpio_regs.h 2015-08-18 22:46:25 -07:00
Alex Stewart
2ffd3da71e Add esp/iomux_regs.h 2015-08-18 17:38:31 -07:00
Angus Gratton
7f338e66cb Unaligned load: Remove debugging variables 2015-08-11 16:25:35 +10:00
Angus Gratton
e3b24df043 Unaligned load: Shave a few more instructions off 2015-08-11 16:25:11 +10:00
Angus Gratton
3b3f5ea771 Unaligned loads: Only save working registers, use jump table to load non-working registers 2015-08-11 15:29:53 +10:00
Angus Gratton
8ea4ae27e2 Unaligned loader: Support l16si 2015-08-11 15:03:53 +10:00