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serial/uart_rpmsg: add _raw version of driver

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Mainline Linux doesn't use data encapsuation or flow control in its
tty_rpmsg driver. Create a NuttX counterpart which matches this
implementation.
This driver uses the static "rpmsg-tty" name to connect with the
remote service.

Signed-off-by: Maarten Zanders <maarten@zanders.be>
This commit is contained in:
Maarten Zanders
2026-02-19 15:44:46 +01:00
committed by Alan C. Assis
parent be66d39552
commit 65207ae1c5
10 changed files with 494 additions and 1 deletions
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drivers/serial/Kconfig
+24
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@@ -169,6 +169,30 @@ config RPMSG_UART_CONSOLE
NOTE: support for this option must be implemented in the board logic by
setting the \"isconsole\" argument in the uart_rpmsg_init() function to true.
config RPMSG_UART_RAW
bool "UART RPMSG RAW support"
default n
depends on RPMSG
select ARCH_HAVE_SERIAL_TERMIOS
select SERIAL_RXDMA
select SERIAL_TXDMA
select SERIAL_REMOVABLE
---help---
Similar to RPMSG_UART but using data transfer without encapsulation or
flow control. This implementation is compatible with the upstream linux
implementation of tty_rpmsg. This connects to a static service name
(rpmsg-tty), independent from the local name.
config RPMSG_UART_RAW_CONSOLE
bool "UART RPMSG RAW console support"
default n
depends on RPMSG_UART_RAW
---help---
Register the RAW UART RPMSG device as /dev/console so that is will be used
as the console device.
NOTE: support for this option must be implemented in the board logic by
setting the \"isconsole\" argument in the uart_rpmsg_raw_init() function to true.
#
# Standard serial driver configuration
#