Commit graph

17 commits

Author SHA1 Message Date
Michael (XIAO Xufeng)
1d58ccdf42 spi: fix a possible concurrency issue 2019-06-11 13:02:21 +08:00
Michael (XIAO Xufeng)
3387d751d9 spi: fix the crash when callbacks are not in the IRAM
Introduced in 9c23b8e5 and 4f87a62f. To get higher speed, menuconfig
options are added to put ISR and other functions into the IRAM.  The
interrupt flag ESP_INTR_FLAG_IRAM is also mistakenly set when the ISR is
put into the IRAM. However callbacks, which are wrote by the user, are
called in the master and slave ISR. The user may not be aware of that
these callbacks are not disabled during flash operations. Any cache miss
during flash operation will cause panic.

Essentially IRAM functions and intrrupt flag ESP_INTR_FLAG_IRAM are
different, the latter means not disabling the ISR during flash
operations.  New bus_config flag intr_flags is offered to help set the
interrupt attribute, including priority level, SHARED, IRAM (not
disabled during flash operations).  It introduced a small BREAK to
IDFv3.1 (but the same as IDFv3.0) that the user has to manually set IRAM
flag now (therefore he's aware of the IRAM thing) to void the ISR being
disabled during flash operations.
2018-12-05 10:25:57 +08:00
michael
06321a5241 spi: move gpio direction config to common func for coinsistence
(MINOR CHANGE)
2018-10-08 19:19:47 +08:00
michael
a7c67c1681 spi_slave: fix the issue rx dma get broken by master unexpected transaction 2018-09-17 22:36:49 +08:00
Michael (XIAO Xufeng)
ebfda40b7c refactor(spi): move pin information into soc folder 2018-06-14 11:29:15 +08:00
Michael (Xiao Xufeng)
45f8bcf3f8 fix(spi): allow using MISO on GPIO34-39
Breaking Changes: arguments of ``spicommon_bus_initialize_io`` are changed.

Closes https://github.com/espressif/esp-idf/issues/1736.
2018-04-12 17:01:38 +08:00
Michael (Xiao Xufeng)
77629129c0 chore(spi): update the return value of spi init functions 2018-04-12 17:01:38 +08:00
michael
842292523f fix(spi_slave): add interrupt free into bus free process. 2017-11-17 12:14:40 +08:00
Ivan Grokhotkov
5048d38ce7 spi slave: lock APB frequency while driver is in use 2017-10-18 14:37:21 +08:00
Gabriel Carstoiu
8128bb95ef fix(spi_slave): enable DMA clock when initialization.
merging in the code updates to the SPI master code done in commit b834fcf78a.

TW#15670, Closes #1027
2017-10-17 12:20:40 +08:00
michael
8e31a36562 feat(spi_slave): append trans_len field in trans_desc to show length actually transferred. 2017-10-17 12:01:12 +08:00
Angus Gratton
8d7074ed5c soc: Move esp_ptr_dma_capable() function to soc_memory_layout.h 2017-07-10 17:46:03 +08:00
Angus Gratton
71c70cb15c heap: Refactor heap regions/capabilities out of FreeRTOS
Remove tagged heap API, rename caps_xxx to heap_caps_xxx

Also includes additional heap_caps_xxx inspection functions.
2017-07-10 17:46:03 +08:00
Jeroen Domburg
8af3fe4e84 Warn against and check for non-DMA-capable pointers being passed to SPI when DMA is used 2017-05-05 12:28:03 +08:00
Jeroen Domburg
04b901e629 SPI: More MR issues fixed, style fixup 2017-04-27 11:49:04 +08:00
Jeroen Domburg
4c06dca15c SPI: Small fixes according to MR comments 2017-04-27 11:49:04 +08:00
Jeroen Domburg
e9c372bc2d SPI: Split common SPI stuff out of master driver; add slave driver; add workaround for DMA issue. 2017-04-27 11:49:04 +08:00