nuttx/drivers/serial/Kconfig

#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

config LOWLEVEL_CONSOLE
	bool "Low-level console support"
	default n
	depends on ARCH_LOWPUTC

config 16550_UART
	bool "16550 UART Chip support"
	default n

if 16550_UART
config 16550_UART0
	bool "16550 UART0"
	default n

if 16550_UART0
config 16550_UART0_BASE
	hex "16550 UART0 base address"

config 16550_UART0_CLOCK
	int "16550 UART0 clock"

config 16550_UART0_IRQ
	int "16550 UART0 IRQ number"

config 16550_UART0_BAUD
	int "16550 UART0 BAUD"
	default 115200

config 16550_UART0_PARITY
	int "16550 UART0 parity"
	default 0
	---help---
		16550 UART0 parity.  0=None, 1=Odd, 2=Even.  Default: None

config 16550_UART0_BITS
	int "16550 UART0 number of bits"
	default 8
	---help---
		16550 UART0 number of bits.  Default: 8

config 16550_UART0_2STOP
	bool "16550 UART0 two stop bits"
	default n
	---help---
		16550 UART0 two stop bits.  Default: 1

config 16550_UART0_RXBUFSIZE
	int "16550 UART0 Rx buffer size"
	default 256
	---help---
		16550 UART0 Rx buffer size.  Default: 256

config 16550_UART0_TXBUFSIZE
	int "16550 UART0 Tx buffer size"
	default 256
	---help---
		16550 UART0 Tx buffer size.  Default: 256

endif

config 16550_UART1
	bool "16550 UART1"
	default n

if 16550_UART1
config 16550_UART1_BASE
	hex "16550 UART1 base address"

config 16550_UART1_CLOCK
	int "16550 UART1 clock"

config 16550_UART1_IRQ
	int "16550 UART1 IRQ number"

config 16550_UART1_BAUD
	int "16550 UART1 BAUD"
	default 115200

config 16550_UART1_PARITY
	int "16550 UART1 parity"
	default 0
	---help---
		16550 UART1 parity.  0=None, 1=Odd, 2=Even.  Default: None

config 16550_UART1_BITS
	int "16550 UART1 number of bits"
	default 8
	---help---
		16550 UART1 number of bits.  Default: 8

config 16550_UART1_2STOP
	bool "16550 UART1 two stop bits"
	default n
	---help---
		16550 UART1 two stop bits.  Default: 1

config 16550_UART1_RXBUFSIZE
	int "16550 UART1 Rx buffer size"
	default 256
	---help---
		16550 UART1 Rx buffer size.  Default: 256

config 16550_UART1_TXBUFSIZE
	int "16550 UART1 Tx buffer size"
	default 256
	---help---
		16550 UART1 Tx buffer size.  Default: 256

endif

config 16550_UART2
	bool "16550 UART2"
	default n

if 16550_UART2
config 16550_UART2_BASE
	hex "16550 UART2 base address"

config 16550_UART2_CLOCK
	int "16550 UART2 clock"

config 16550_UART2_IRQ
	int "16550 UART2 IRQ number"

config 16550_UART2_BAUD
	int "16550 UART2 BAUD"
	default 115200

config 16550_UART2_PARITY
	int "16550 UART2 parity"
	default 0
	---help---
		16550 UART2 parity.  0=None, 1=Odd, 2=Even.  Default: None

config 16550_UART2_BITS
	int "16550 UART2 number of bits"
	default 8
	---help---
		16550 UART2 number of bits.  Default: 8

config 16550_UART2_2STOP
	bool "16550 UART2 two stop bits"
	default n
	---help---
		16550 UART2 two stop bits.  Default: 1

config 16550_UART2_RXBUFSIZE
	int "16550 UART2 Rx buffer size"
	default 256
	---help---
		16550 UART2 Rx buffer size.  Default: 256

config 16550_UART2_TXBUFSIZE
	int "16550 UART2 Tx buffer size"
	default 256
	---help---
		16550 UART2 Tx buffer size.  Default: 256

endif

config 16550_UART3
	bool "16550 UART3"
	default n

if 16550_UART3
config 16550_UART3_BASE
	hex "16550 UART3 base address"

config 16550_UART3_CLOCK
	int "16550 UART3 clock"

config 16550_UART3_IRQ
	int "16550 UART3 IRQ number"

config 16550_UART3_BAUD
	int "16550 UART3 BAUD"
	default 115200

config 16550_UART3_PARITY
	int "16550 UART3 parity"
	default 0
	---help---
		16550 UART3 parity.  0=None, 1=Odd, 2=Even.  Default: None

config 16550_UART3_BITS
	int "16550 UART3 number of bits"
	default 8
	---help---
		16550 UART3 number of bits.  Default: 8

config 16550_UART3_2STOP
	bool "16550 UART3 two stop bits"
	default n
	---help---
		16550 UART3 two stop bits.  Default: 1

config 16550_UART3_RXBUFSIZE
	int "16550 UART3 Rx buffer size"
	default 256
	---help---
		16550 UART3 Rx buffer size.  Default: 256

config 16550_UART3_TXBUFSIZE
	int "16550 UART3 Tx buffer size"
	default 256
	---help---
		16550 UART3 Tx buffer size.  Default: 256

endif

choice
	prompt "16550 Serial Console"
	default NO_SERIAL_CONSOLE

config UART0_SERIAL_CONSOLE
	bool "16550 UART0 serial console"
	depends on 16550_UART0

config UART1_SERIAL_CONSOLE
	bool "16550 UART1 serial console"
	depends on 16550_UART1

config UART2_SERIAL_CONSOLE
	bool "16550 UART2 serial console"
	depends on 16550_UART2

config UART3_SERIAL_CONSOLE
	bool "16550 UART3 serial console"
	depends on 16550_UART3

config NO_SERIAL_CONSOLE
	bool "No 16550 serial console"

endchoice

config 16550_SUPRESS_CONFIG
	bool "Suppress 16550 configuration"
	default n
	---help---
		This option is useful, for example, if you are using a bootloader
		that configures the 16550_UART.  In that case, you may want to 
		just leave the existing console configuration in place.  Default: n

config 16550_REGINCR
	int "Address increment between 16550 registers"
	default 1
	---help---
		The address increment between 16550 registers.  Options are 1, 2, or 4.
		Default: 1

config 16550_REGWIDTH
	int "Bit width of 16550 registers"
	default 8
	---help---
		The bit width of registers.  Options are 8, 16, or 32. Default: 8

config 16550_ADDRWIDTH
	int "Address width of 16550 registers"
	default 8
	---help---
		The bit width of registers.  Options are 8, 16, or 32. Default: 8

endif

config STANDARD_SERIAL
	bool "Standard serial"
	default y if !LOWLEVEL_CONSOLE && !16550_UART

if STANDARD_SERIAL
config CONFIG_SERIAL_NPOLLWAITERS
	int "Number of poll threads"
	default 2
	depends on !DISABLE_POLL
	---help---
		Maximum number of threads than can be waiting for POLL events.
		Default: 2

endif