drivers: serial: nrfx_uarte: Rework Kconfig to use instance template

Rework Kconfig to improve handling of multiple UART instances by
using Kconfig template file.

Signed-off-by: Krzysztof Chruściński <[email protected]>

Author: nordic-krch

drivers/serial/Kconfig.nrfx

@@ -36,291 +36,25 @@ config UART_ASYNC_TX_CACHE_SIZE
 	  in RAM, because EasyDMA in UARTE peripherals can only transfer data
 	  from RAM.
 
-# ----------------- port 0 -----------------
 if HAS_HW_NRF_UART0 || HAS_HW_NRF_UARTE0
+nrfx_uart_num = 0
+rsource "Kconfig.nrfx_uart_instance"
+endif
 
-config UART_0_ENHANCED_POLL_OUT
-	bool "Efficient poll out on port 0"
-	default y
-	depends on HAS_HW_NRF_UARTE0
-	help
-	  When enabled, polling out does not trigger interrupt which stops TX.
-	  Feature uses a PPI channel.
-
-config UART_0_INTERRUPT_DRIVEN
-	bool "Interrupt support on port 0"
-	depends on UART_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART interrupt support on port 0.
-
-config UART_0_ASYNC
-	bool "Asynchronous API support on port 0"
-	depends on UART_ASYNC_API && !UART_0_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART Asynchronous API support on port 0.
-
-config UART_0_NRF_PARITY_BIT
-	bool "Parity bit"
-	help
-	  Enable parity bit.
-
-config UART_0_NRF_TX_BUFFER_SIZE
-	int "Size of RAM buffer"
-	depends on HAS_HW_NRF_UARTE0
-	range 1 65535
-	default 32
-	help
-	  Size of the transmit buffer for API function: fifo_fill.
-	  This value is limited by range of TXD.MAXCNT register for
-	  particular SoC.
-
-config UART_0_NRF_HW_ASYNC
-	bool "Use hardware RX byte counting"
-	depends on HAS_HW_NRF_UARTE0
-	depends on UART_ASYNC_API
-	help
-	  If default driver uses interrupts to count incoming bytes, it is possible
-	  that with higher speeds and/or high cpu load some data can be lost.
-	  It is recommended to use hardware byte counting in such scenarios.
-	  Hardware RX byte counting requires timer instance and one PPI channel
-
-config UART_0_NRF_ASYNC_LOW_POWER
-	bool "Low power mode"
-	depends on HAS_HW_NRF_UARTE0
-	depends on UART_ASYNC_API
-	help
-	  When enabled, UARTE is enabled before each TX or RX usage and disabled
-	  when not used. Disabling UARTE while in idle allows to achieve lowest
-	  power consumption. It is only feasible if receiver is not always on.
-
-config UART_0_NRF_HW_ASYNC_TIMER
-	int "Timer instance"
-	depends on UART_0_NRF_HW_ASYNC
-
-config UART_0_GPIO_MANAGEMENT
-	bool "GPIO management on port 0"
-	depends on PM_DEVICE
-	default y
-	help
-	  If enabled, the driver will configure the GPIOs used by the uart to
-	  their default configuration when device is powered down. The GPIOs
-	  will be configured back to correct state when UART is powered up.
-
-endif # HAS_HW_NRF_UART0 || HAS_HW_NRF_UARTE0
-
-# ----------------- port 1 -----------------
 if HAS_HW_NRF_UARTE1
+nrfx_uart_num = 1
+rsource "Kconfig.nrfx_uart_instance"
+endif
 
-config UART_1_INTERRUPT_DRIVEN
-	bool "Interrupt support on port 1"
-	depends on UART_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART interrupt support on port 1.
-
-config UART_1_ASYNC
-	bool "Asynchronous API support on port 1"
-	depends on UART_ASYNC_API && !UART_1_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART Asynchronous API support on port 1.
-
-config UART_1_ENHANCED_POLL_OUT
-	bool "Efficient poll out on port 1"
-	default y
-	help
-	  When enabled, polling out does not trigger interrupt which stops TX.
-	  Feature uses a PPI channel.
-
-config UART_1_NRF_PARITY_BIT
-	bool "Parity bit"
-	help
-	  Enable parity bit.
-
-config UART_1_NRF_TX_BUFFER_SIZE
-	int "Size of RAM buffer"
-	depends on UART_INTERRUPT_DRIVEN
-	range 1 65535
-	default 32
-	help
-	  Size of the transmit buffer for API function: fifo_fill.
-	  This value is limited by range of TXD.MAXCNT register for
-	  particular SoC.
-
-config UART_1_NRF_HW_ASYNC
-	bool "Use hardware RX byte counting"
-	depends on UART_1_ASYNC
-	help
-	  If default driver uses interrupts to count incoming bytes, it is possible
-	  that with higher speeds and/or high cpu load some data can be lost.
-	  It is recommended to use hardware byte counting in such scenarios.
-	  Hardware RX byte counting requires timer instance and one PPI channel
-
-config UART_1_NRF_ASYNC_LOW_POWER
-	bool "Low power mode"
-	depends on UART_ASYNC_API
-	help
-	  When enabled, UARTE is enabled before each TX or RX usage and disabled
-	  when not used. Disabling UARTE while in idle allows to achieve lowest
-	  power consumption. It is only feasible if receiver is not always on.
-
-config UART_1_NRF_HW_ASYNC_TIMER
-	int "Timer instance"
-	depends on UART_1_NRF_HW_ASYNC
-
-config UART_1_GPIO_MANAGEMENT
-	bool "GPIO management on port 1"
-	depends on PM_DEVICE
-	default y
-	help
-	  If enabled, the driver will configure the GPIOs used by the uart to
-	  their default configuration when device is powered down. The GPIOs
-	  will be configured back to correct state when UART is powered up.
-
-endif # HAS_HW_NRF_UARTE1
-
-# ----------------- port 2 -----------------
 if HAS_HW_NRF_UARTE2
+nrfx_uart_num = 2
+rsource "Kconfig.nrfx_uart_instance"
+endif
 
-config UART_2_INTERRUPT_DRIVEN
-	bool "Interrupt support on port 2"
-	depends on UART_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART interrupt support on port 2.
-
-config UART_2_ASYNC
-	bool "Asynchronous API support on port 2"
-	depends on UART_ASYNC_API && !UART_2_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART Asynchronous API support on port 2.
-
-config UART_2_ENHANCED_POLL_OUT
-	bool "Efficient poll out on port 2"
-	default y
-	help
-	  When enabled, polling out does not trigger interrupt which stops TX.
-	  Feature uses a PPI channel.
-
-config UART_2_NRF_PARITY_BIT
-	bool "Parity bit"
-	help
-	  Enable parity bit.
-
-config UART_2_NRF_TX_BUFFER_SIZE
-	int "Size of RAM buffer"
-	range 1 65535
-	default 32
-	help
-	  Size of the transmit buffer for API function: fifo_fill.
-	  This value is limited by range of TXD.MAXCNT register for
-	  particular SoC.
-
-config UART_2_NRF_HW_ASYNC
-	bool "Use hardware RX byte counting"
-	depends on UART_2_ASYNC
-	help
-	  If default driver uses interrupts to count incoming bytes, it is possible
-	  that with higher speeds and/or high cpu load some data can be lost.
-	  It is recommended to use hardware byte counting in such scenarios.
-	  Hardware RX byte counting requires timer instance and one PPI channel
-
-config UART_2_NRF_ASYNC_LOW_POWER
-	bool "Low power mode"
-	depends on UART_ASYNC_API
-	help
-	  When enabled, UARTE is enabled before each TX or RX usage and disabled
-	  when not used. Disabling UARTE while in idle allows to achieve lowest
-	  power consumption. It is only feasible if receiver is not always on.
-
-config UART_2_NRF_HW_ASYNC_TIMER
-	int "Timer instance"
-	depends on UART_2_NRF_HW_ASYNC
-
-config UART_2_GPIO_MANAGEMENT
-	bool "GPIO management on port 2"
-	depends on PM_DEVICE
-	default y
-	help
-	  If enabled, the driver will configure the GPIOs used by the uart to
-	  their default configuration when device is powered down. The GPIOs
-	  will be configured back to correct state when UART is powered up.
-
-endif # HAS_HW_NRF_UARTE2
-
-# ----------------- port 3 -----------------
 if HAS_HW_NRF_UARTE3
-
-config UART_3_INTERRUPT_DRIVEN
-	bool "Interrupt support on port 3"
-	depends on UART_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART interrupt support on port 3.
-
-config UART_3_ASYNC
-	bool "Asynchronous API support on port 3"
-	depends on UART_ASYNC_API && !UART_3_INTERRUPT_DRIVEN
-	default y
-	help
-	  This option enables UART Asynchronous API support on port 3.
-
-config UART_3_ENHANCED_POLL_OUT
-	bool "Efficient poll out on port 3"
-	default y
-	help
-	  When enabled, polling out does not trigger interrupt which stops TX.
-	  Feature uses a PPI channel.
-
-config UART_3_NRF_PARITY_BIT
-	bool "Parity bit"
-	help
-	  Enable parity bit.
-
-config UART_3_NRF_TX_BUFFER_SIZE
-	int "Size of RAM buffer"
-	range 1 65535
-	default 32
-	help
-	  Size of the transmit buffer for API function: fifo_fill.
-	  This value is limited by range of TXD.MAXCNT register for
-	  particular SoC.
-
-config UART_3_NRF_HW_ASYNC
-	bool "Use hardware RX byte counting"
-	depends on UART_3_ASYNC
-	help
-	  If default driver uses interrupts to count incoming bytes, it is possible
-	  that with higher speeds and/or high cpu load some data can be lost.
-	  It is recommended to use hardware byte counting in such scenarios.
-	  Hardware RX byte counting requires timer instance and one PPI channel
-
-config UART_3_NRF_ASYNC_LOW_POWER
-	bool "Low power mode"
-	depends on UART_ASYNC_API
-	help
-	  When enabled, UARTE is enabled before each TX or RX usage and disabled
-	  when not used. Disabling UARTE while in idle allows to achieve lowest
-	  power consumption. It is only feasible if receiver is not always on.
-
-config UART_3_NRF_HW_ASYNC_TIMER
-	int "Timer instance"
-	depends on UART_3_NRF_HW_ASYNC
-
-config UART_3_GPIO_MANAGEMENT
-	bool "GPIO management on port 3"
-	depends on PM_DEVICE
-	default y
-	help
-	  If enabled, the driver will configure the GPIOs used by the uart to
-	  their default configuration when device is powered down. The GPIOs
-	  will be configured back to correct state when UART is powered up.
-
-endif # HAS_HW_NRF_UARTE3
-
+nrfx_uart_num = 3
+rsource "Kconfig.nrfx_uart_instance"
+endif
 
 config NRFX_TIMER0
 	default y
@@ -357,23 +91,4 @@ config NRFX_TIMER4
 		|| UART_2_NRF_HW_ASYNC_TIMER = 4 \
 		|| UART_3_NRF_HW_ASYNC_TIMER = 4
 
-
-config UARTE_NRF_HW_ASYNC
-	def_bool y
-	depends on UART_0_NRF_HW_ASYNC \
-		|| UART_1_NRF_HW_ASYNC \
-		|| UART_2_NRF_HW_ASYNC \
-		|| UART_3_NRF_HW_ASYNC
-	select NRFX_PPI if HAS_HW_NRF_PPI
-	select NRFX_DPPI if HAS_HW_NRF_DPPIC
-
-config UART_ENHANCED_POLL_OUT
-	def_bool y
-	depends on UART_0_ENHANCED_POLL_OUT \
-		|| UART_1_ENHANCED_POLL_OUT \
-		|| UART_2_ENHANCED_POLL_OUT \
-		|| UART_3_ENHANCED_POLL_OUT
-	select NRFX_PPI if HAS_HW_NRF_PPI
-	select NRFX_DPPI if HAS_HW_NRF_DPPIC
-
 endif # UART_NRFX