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drivers: serial: nrfx_uarte: Rework Kconfig to use instance template
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Rework Kconfig to improve handling of multiple UART instances by
using Kconfig template file.

Signed-off-by: Krzysztof Chruściński <[email protected]>
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@nordic-krch @carlescufi
nordic-krch authored and carlescufi committed Nov 20, 2023
1 parent ad788ad commit 26fd55e
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Showing 3 changed files with 101 additions and 299 deletions.
309 changes: 12 additions & 297 deletions drivers/serial/Kconfig.nrfx
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Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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
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