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menuconfig RT_USING_SERIAL
bool "Using Serial device drivers"
select RT_USING_DEVICE_IPC
select RT_USING_DEVICE
default y
help
Enable the UART/USART driver framework that backs the console and TTY
devices. Required for shell access or any serial communications.
if RT_USING_SERIAL
choice RT_USING_SERIAL_VERSION
prompt "Choice Serial version"
default RT_USING_SERIAL_V1
config RT_USING_SERIAL_V1
bool "RT_USING_SERIAL_V1"
config RT_USING_SERIAL_V2
bool "RT_USING_SERIAL_V2"
help
Select between the legacy serial core (V1) and the newer buffer/ISR
design (V2). Choose V2 for advanced buffer strategies, otherwise stay
with V1 for compatibility.
endchoice
choice RT_USING_SERIAL_MODE
prompt "Choice Serial version"
depends on RT_USING_SERIAL_V2
default RT_SERIAL_BUF_STRATEGY_OVERWRITE
config RT_SERIAL_BUF_STRATEGY_DROP
bool "drop new incoming data when the buffer is full"
config RT_SERIAL_BUF_STRATEGY_OVERWRITE
bool "overwrite old data when the buffer is full"
help
Define how V2 RX buffers behave on overflow: drop new bytes or
overwrite oldest data.
endchoice
config RT_SERIAL_USING_DMA
bool "Enable serial DMA mode"
default y
help
Allow serial drivers to use DMA for RX/TX to reduce CPU load. Turn
off if your SoC lacks UART DMA support.
config RT_SERIAL_RB_BUFSZ
int "Set RX buffer size"
depends on !RT_USING_SERIAL_V2
default 64
help
Size of the legacy (V1) receive ring buffer in bytes.
config RT_USING_SERIAL_BYPASS
bool "Using serial bypass"
default n
help
Enable bypass mode that forwards data between two serial devices,
useful for debugging or bridging.
endif
if RT_USING_DM && RT_USING_SERIAL
rsource "device/Kconfig"
endif
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