85 lines
2.0 KiB
Plaintext
85 lines
2.0 KiB
Plaintext
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see the file kconfig-language.txt in the NuttX tools repository.
|
|
#
|
|
|
|
if SPI
|
|
|
|
config SPI_SLAVE
|
|
bool "SPI slave"
|
|
default n
|
|
---help---
|
|
Enable support for SPI slave features
|
|
|
|
if SPI_SLAVE
|
|
|
|
config SPI_SLAVE_DMA
|
|
bool "SPI slave DMA"
|
|
default n
|
|
depends on ARCH_DMA && EXPERIMENTAL
|
|
---help---
|
|
Enable support for DMA data transfers (not yet implemented).
|
|
|
|
endif
|
|
|
|
config SPI_EXCHANGE
|
|
bool "SPI exchange"
|
|
default y
|
|
---help---
|
|
Driver supports a single exchange method (vs a recvblock() and
|
|
sndblock() methods).
|
|
|
|
config SPI_CMDDATA
|
|
bool "SPI CMD/DATA"
|
|
default n
|
|
---help---
|
|
Devices on the SPI bus require out-of-band support to distinguish
|
|
command transfers from data transfers. Such devices will often support
|
|
either 9-bit SPI (yech) or 8-bit SPI and a GPIO output that selects
|
|
between command and data.
|
|
|
|
config SPI_CALLBACK
|
|
bool "Media change callbacks"
|
|
default y if MMCSD_SPI
|
|
default n if !MMCSD_SPI
|
|
---help---
|
|
Support the callback method in the SPI interface. This will allow
|
|
the SPI-based MMC/SD driver to get a notification of changes in the
|
|
card status when an SD card is inserted or removed.
|
|
|
|
config SPI_BITBANG
|
|
bool "SPI bit-bang device"
|
|
default n
|
|
---help---
|
|
Enable support for a generic SPI bit-bang device.
|
|
See include/nuttx/spi/spi_bitbang.h for further information.
|
|
|
|
config SPI_HWFEATURES
|
|
bool
|
|
default n
|
|
---help---
|
|
Selected only if a specific H/W feature is selected. This is
|
|
basically the OR of any specific hardware feature and eanbles
|
|
the SPI hwfeatures() interface method.
|
|
|
|
config SPI_CRCGENERATION
|
|
bool
|
|
default n
|
|
select SPI_HWFEATURES
|
|
---help---
|
|
Selected by MCU Kconfig logic if implementation supports automatic
|
|
generation of SPI CRCs. Enables the HWFEAT_CRCGENERATION option
|
|
as well as the hwfeartures() interface method.
|
|
|
|
if SPI_BITBANG
|
|
|
|
config SPI_BITBANG_VARWIDTH
|
|
bool "SPI bit-bang variable width transfers"
|
|
default n
|
|
---help---
|
|
Enable support for a variable data width transfers. Default: 8-bit
|
|
only.
|
|
|
|
endif # SPI_BITBANG
|
|
endif # SPI
|