Commit Graph

57 Commits

Author SHA1 Message Date
Ivan Grokhotkov
512898edee sdmmc: fix reads/writes to/from unaligned buffers
SDMMC hardware treats all buffers as aligned, and ignores 2 LSBs of
addresses written into DMA descriptors. Previously SDMMC host driver
assumed that data buffers passed from SDDMC command layer would be
aligned. However alignment checks were never implemented in the command
layer, as were the checks that the buffer coming from the application
would be in DMA capable memory. Most of the time this was indeed true.
However in some cases FATFS library can pass buffers offset by 2 bytes
from word boundary. “DMA capable” restriction may be broken if pSRAM
support is used.

This change adds buffer checks to the SDMMC host driver (alignment and
DMA capability), so that the host layer will error out for incompatible
buffers. In SDMMC command layer, a check is added to read and write
functions. If an incompatible buffer is passed from the application, new
buffer (512 bytes size) is allocated, and the transfer is performed
using {READ,WRITE}_SINGLE_BLOCK commands.
2017-08-01 03:15:11 +08:00
Dmitry Yakovlev
e5bb45f381 driver: SD protocol driver for SPI peripheral 2017-07-20 13:43:07 +08:00
Ivan Grokhotkov
5f8785eaec sdmmc: add support for SPI protocol commands 2017-07-20 13:34:21 +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
antti
f8b5c29346 esp32: add [ignore] tag to some unit test cases for CI
Add ignore tag on unit test cases that are not supported in CI yet
2017-01-18 17:08:20 +08:00
Ivan Grokhotkov
44ce833d76 fatfs: add vfs support 2017-01-09 05:54:04 +08:00
Ivan Grokhotkov
edd924f273 sdmmc: add peripheral driver and protocol layer 2017-01-09 04:51:24 +08:00