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62 commits

Author SHA1 Message Date
Angus Gratton
e4c76b488c 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
c759a2af05 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
390e007c75 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
44f2ba66e5 Exception vectors: Remove no-op syscallhandler 2015-09-14 18:17:45 +10:00
Angus Gratton
d4e5af7f0b NMI exception handler: Fix reserving too much RAM for registers 2015-09-14 17:43:29 +10:00
Angus Gratton
9ae2464258 Exception handlers: remove unused NMIHandlerAddress 2015-09-14 17:22:50 +10:00
Angus Gratton
6650369502 Use GPIO2 for led_debug.S 2015-09-14 17:20:00 +10:00
Angus Gratton
e347f296f3 Exception vectors: Rearrange to use absolute offets instead of .align hacks 2015-09-14 17:20:00 +10:00
Angus Gratton
1a4c829b1f 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
a5266adb48 Merge branch 'master' into experiments/unaligned_load 2015-09-10 08:19:42 +10:00
Angus Gratton
c55cfd3b2e Merge branch 'fix/int32_t' 
Closes #42
 2015-09-09 16:23:31 +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
e61e84ca7d 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
5aa095298d libc syscalls: ENOSYS implementations for open,fstat,close,lseek 
Closes #41
 2015-09-03 11:45:52 +10:00
Angus Gratton
006c73c7ba 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
78be94744c Fix broken UART(i) definition 2015-08-25 22:31:47 -07:00
Alex Stewart
0155632dd3 Remove 'packed' attribute from all regs structs 2015-08-25 17:13:13 -07:00
Alex Stewart
b76bf99d7c 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
76ad427dc2 Merge pull request #29 from foogod/issue_8 
Add more *_regs.h definitions
 2015-08-24 16:14:19 +10:00
Angus Gratton
08bb9f16e7 Add a comment explaining commented out REG_BASE lines 
Change was part of #27
 2015-08-22 17:39:25 +10:00
Alex Stewart
9f3f3e5b08 Add esp/rtcmem_regs.h 2015-08-21 14:20:00 -07:00
Alex Stewart
b482a1cc77 Fix a couple of struct def issues with 2 previous commits 2015-08-21 14:06:38 -07:00
Alex Stewart
3f3f257612 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
af32217805 Add esp/uart_regs.h and esp/spi_regs.h 2015-08-21 13:56:23 -07:00
Alex Stewart
d79c1c3983 rename GPIO_CONF_DRIVER_ENABLE back to GPIO_CONF_PUSH_PULL 2015-08-21 09:54:20 -07:00
Alex Stewart
13b924d259 Fix leftover IOMUX_FUNC_A/D references 2015-08-19 16:53:02 -07:00
Alex Stewart
0d6af96f2d Cleanup a few comments in *_regs.h files 2015-08-19 16:50:56 -07:00
Alex Stewart
c32a6692a0 Add esp/wdt_regs.h 2015-08-19 16:48:11 -07:00
Alex Stewart
eaa090e267 Added esp/timer_regs.h and esp/dport_regs.h 2015-08-19 11:34:18 -07:00
Alex Stewart
3cc5d1fa86 Replace stdint.h with esp/types.h in gpio_regs.h 2015-08-19 09:05:03 -07:00
Alex Stewart
5e6b022e39 Fix cut-paste error in gpio_regs.h comment 2015-08-19 09:03:18 -07:00
Alex Stewart
7fa2817f1b Add esp/gpio_regs.h 2015-08-18 22:46:25 -07:00
Alex Stewart
9727df5f6c 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
Angus Gratton
773a046dc3 Unaligned loader: clean up, reduce number of registers 2015-08-11 14:23:41 +10:00
Angus Gratton
bfd38cd1e2 Experimental support for storing const strings in SPI flash or IRAM 
As discussed in #11

Known limitations:
- Only supports l8ui/l16ui
- Unoptimised load routine
- Not called from DoubleExceptionHandler but should be
- Doesn't restore state properly when falling through to fatal exception handler
 2015-08-10 12:03:03 +10:00
Angus Gratton
d685581829 Syscall hander: Fix a3 save address 
(SDK doesn't use syscall exception so bug probably never hit?)
 2015-08-10 11:54:30 +10:00
Johan Kanflo
3bacab7c67 Correct prototype for sdk_uart_rx_one_char, kudos to @foogod 2015-08-07 13:26:06 +02:00
Angus Gratton
bed6907d22 Exception vector address must be 256 byte aligned 
Not actually a problem with the current linker script as the address is
predetermined there at start of IRAM, but might as well be accurate
about it.

As per advice from @foogod on esp8266-re mailing list:
https://groups.google.com/d/msg/esp8266-re/1ljIY3Zttbo/HvzHSWOLCgAJ
 2015-08-06 09:54:46 +10:00
Angus Gratton
19b8383069 Working TFTP server based OTA updates 
Tested with 16MBit flash configuration, two rboot update slots.

Closes #10
 2015-08-05 14:10:14 +10:00
Angus Gratton
aed843fc14 exception_vectors: Remove some cruft some the symbol table 2015-07-30 10:10:37 +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
28fdebee92 gpio: Change gpio_write argument to bool 2015-07-29 10:35:15 +10:00
Angus Gratton
265cef7e00 Add some LED debugging assembler macros 
Not used directly in esp-open-rtos but useful to keep around.
 2015-07-28 11:19:01 +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
1d72ed3f70 Hardware timer support 2015-07-09 12:29:40 +10:00