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36 commits

Author SHA1 Message Date
Angus Gratton
aea147ad6a 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
Angus Gratton
1221e2117b 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
efc454035c Move all code paths touched by NMI to IRAM 
Prerequisite for calling Cache_Read_Disable() for OTA updates.

Massive thanks due to @foogod and their xtobjdis tool, creating the call
graph of where the wDev_ProcessFiq touched (including in newlib, etc.)
would have otherwise been very painful:
https://bitbucket.org/foogod/xtobjdis
 2015-07-29 16:47:33 +10:00
Angus Gratton
ed7ba52c9a Add exception vectors & low-level handlers 
At the moment these are almost bit-for-bit copies of the vector
behaviour in the RTOS SDK, but hopefully that will start to change.

Progress towards #2
 2015-07-28 11:01:57 +10:00
Angus Gratton
86188c01fd Merge branch 'newlib' 2015-07-15 16:01:18 +10:00
Angus Gratton
4217a1029e xtensa_interrupts: Add _xt_disable_interrupts/_xt_restore_interrupts inline functions 2015-06-18 11:30:13 +10:00
Angus Gratton
72b61b17f8 Create a default FreeRTOSConfig.h, can override on a per-program basis 
Closes #12
 2015-06-16 17:28:32 +10:00
Angus Gratton
aaef4b0644 Replace all binary SDK libc functions with newlib 
Adds a new build step to remove the SDK object files listed in
<libname>.remove.

Closes #1.
 2015-06-16 14:21:24 +10:00
Angus Gratton
f0b5bc324c Implement xPortGetFreeHeapSize when using libc memory management 2015-06-16 14:20:52 +10:00
Angus Gratton
49268a33e1 Link against newlib from esp-open-sdk's libcirom, replace FreeRTOS heap management. 
Compiles and runs, expects xtensa lock.c patch in newlib (will still run
otherwise but malloc/free and other functions will be non-memory-safe...)
 2015-06-16 14:20:24 +10:00
Angus Gratton
822533fd92 Interrupt support refactor 
Write inline versions for SDK-based interrupt convenience functions.
 2015-06-08 18:20:29 +10:00
Angus Gratton
0dbb6d31a5 Add IRAM attribute for IRAM loaded symbols, add to common FreeRTOS functions 
Closes #7.

It'd be nice to change the linker script so .text is always linked to
IROM instead of needing to objcopy each compiled file. The sticking
point for this is libgcc & libhal, which have symbols in .text that need
to be loaded to IRAM.
 2015-06-08 18:19:59 +10:00
Angus Gratton
2c46be9825 Basic support for GPIOs 0-15. 
Start new 'core' component for low-level parts

Progress towards #8
 2015-06-08 12:09:34 +10:00
Angus Gratton
81afe58334 Change symbol extraction to use objdump not nm 
nm outputs warnings to stderr so hard to clean output.

Also now picks up global variables, like NMIIrqOn.
 2015-06-02 17:57:33 +10:00
Angus Gratton
c126fa6430 Add README, 'make help', header comments, Copyright notices 2015-06-02 17:12:20 +10:00
Angus Gratton
3fcec6106f Swap binary axTLS libssl for direct compiled version 2015-06-02 17:12:20 +10:00
Angus Gratton
e743d03a78 Preprocess all binary SDK symbols to add an sdk_ prefix 
* This fixes the problem of axTLS symbols hmac_md5/hmac_sha1 having same
  name as symbols in libwpa (which have incompatible signatures)

* Also allows for easier identification and piece-by-piece removal of
  binary functions.

* Some libc symbols are not renamed, list is in lib/symbols_norename.txt
 2015-06-02 15:08:35 +10:00
Angus Gratton
b8576dd554 Fix errno 2015-06-02 15:08:35 +10:00
Angus Gratton
dc4ca6861f Remove udhcp (DHCP server support) as it's a GPL violation :( 2015-06-02 15:08:35 +10:00
Angus Gratton
8e174aa518 Comment vPortEnterCritical/vPortExitCritical functions 2015-06-02 15:08:35 +10:00
Angus Gratton
806962d5c7 Replace lwip SDK blob with lwip 1.4.1 upstream source 
Compiles but won't work yet
 2015-06-02 15:08:26 +10:00
Angus Gratton
496c5a8330 Heavily rework Makefile to support 'components' of source code to build independently, etc. 2015-06-02 15:08:03 +10:00
Angus Gratton
1e15cc266f Comment some parts of portmacro.h 2015-05-07 14:23:24 +10:00
Angus Gratton
c636adf42c Clean up portmacro.h 2015-05-07 14:23:24 +10:00
Angus Gratton
3a5b46a09a Xtensa interrupt management function prototypes 2015-05-07 14:23:24 +10:00
Angus Gratton
6369b4cefa Clean up rest of port.c function 2015-05-07 14:23:24 +10:00
Angus Gratton
ee95fde5ec Change PendSV function signature to use enum 2015-05-07 14:23:24 +10:00
Angus Gratton
c3c531240e Remove pending sv posted flag, double-setting int bit doesn't matter 2015-05-07 14:23:24 +10:00
Angus Gratton
e95a93bdd9 Clean up PendSV/SV ISR 2015-05-07 14:23:24 +10:00
Angus Gratton
ddd88dbe59 Misc port.c cleanup, remove now-unused PortxxxInt_NoNest, comment misc bits of blob interface 2015-05-07 14:23:24 +10:00
Angus Gratton
b7e0e232dd Replace FreeRTOS core/non-portable files with unmodified variants from vanilla 7.5.2 2015-05-07 14:23:24 +10:00
Angus Gratton
de4855b86c First half of moving custom synchronisation primitive API to standard FreeRTOS 2015-05-07 14:23:24 +10:00
Angus Gratton
b3c674d89d Swap memory management to FreeRTOS-style, fixed heap size 2015-05-07 14:23:24 +10:00
Angus Gratton
cd705f8b93 Replace ETS_INTR_xxx with xTaskSuspend/Resume 2015-05-07 14:23:24 +10:00
Angus Gratton
1ffbc303ff Working variant of esp_iot_rtos_sdk (files from commit ec75c85f9ef53) 2015-05-07 14:22:25 +10:00
Angus Gratton
101c8648ea Unmodified cross-platform parts of FreeRTOS 7.5.2 (Demos and 
platform-specific code removed)
 2015-04-30 11:01:12 +10:00