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incubator-nuttx/drivers/ioexpander/Kconfig

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This commit adds: -headers in nuttx/ioexpander to define the "generic" ioexpander framework -files in drivers/ioexpander for the implementation of the NXP PCA9555 framework -bindings in drivers/Kconfig and drivers/Makefile From Sebastien Lorquet
2015-07-09 21:31:22 +08:00
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
drivrs/ioexpander: Add support for a very simple GPIO drivers. It supports only pre-conrigured input and output pins and only basic input and output operations.
2016-06-24 23:43:49 +08:00
menu "IO Expander/GPIO Support"
config IOEXPANDER
bool "Enable IO Expander Support"
default n
---help---
This directory holds implementations of IO expander drivers.
See include/nuttx/ioexpander/ioexpander.h for registration information.
if IOEXPANDER
This commit adds: -headers in nuttx/ioexpander to define the "generic" ioexpander framework -files in drivers/ioexpander for the implementation of the NXP PCA9555 framework -bindings in drivers/Kconfig and drivers/Makefile From Sebastien Lorquet
2015-07-09 21:31:22 +08:00
config IOEXPANDER_PCA9555
bool "PCA9555 I2C IO expander"
default n
SIM: Add a simulated I/O Expander driver
2016-08-03 23:44:48 +08:00
depends on I2C
This commit adds: -headers in nuttx/ioexpander to define the "generic" ioexpander framework -files in drivers/ioexpander for the implementation of the NXP PCA9555 framework -bindings in drivers/Kconfig and drivers/Makefile From Sebastien Lorquet
2015-07-09 21:31:22 +08:00
---help---
Enable support for the NXP PCA9555 IO Expander
if IOEXPANDER_PCA9555
config PCA9555_MULTIPLE
bool "Multiple PCA9555 Devices"
default n
---help---
Can be defined to support multiple PCA9555 devices on board.
Include support for PCA9555 interrupt driven IO changes detection. Currently using a signal, and a single notified task. signal handling support moved to generic IO expander header (not pca specific)
2015-11-17 21:09:43 +08:00
config PCA9555_INT_ENABLE
bool "Enable PCA9555 Interrupt Support"
default n
select IOEXPANDER_INT_ENABLE
This commit adds: -headers in nuttx/ioexpander to define the "generic" ioexpander framework -files in drivers/ioexpander for the implementation of the NXP PCA9555 framework -bindings in drivers/Kconfig and drivers/Makefile From Sebastien Lorquet
2015-07-09 21:31:22 +08:00
---help---
Include support for PCA9555 interrupt driven IO changes detection. Currently using a signal, and a single notified task. signal handling support moved to generic IO expander header (not pca specific)
2015-11-17 21:09:43 +08:00
Enable driver interrupt functionality
This commit adds: -headers in nuttx/ioexpander to define the "generic" ioexpander framework -files in drivers/ioexpander for the implementation of the NXP PCA9555 framework -bindings in drivers/Kconfig and drivers/Makefile From Sebastien Lorquet
2015-07-09 21:31:22 +08:00
I/O Expander: Remove hard-coded PCA9555 fields from ioexpander.h definitons. Add support for an attach() method that may be used when any subset of pin interrupts occur. PCA9555 Driver: Replace the signalling logic with a simple callback using the new definitons of ioexpander.h. This repartitioning of functionality is necessary because (1) the I/O expander driver is the lower-lower part of any driver that uses GPIOs (include the GPIO driver itself) and should not be interacting directly with the much higher level application layer. And (2) in order to be compatible with the GPIO driver (and any arbitrary upper half driver), the PCA9555 should not directly signal, but should call back into the upper half. The upper half driver that interacts directly with the application is the appropriate place to be generating signal.
2016-08-01 01:09:02 +08:00
config PCA9555_INT_NCALLBACKS
int "Max number of interrupt callbacks"
default 4
First (untested) cut at a TCA64XX I/O Expander driver leverages from Project Ara
2016-08-01 09:52:44 +08:00
depends on PCA9555_INT_ENABLE
I/O Expander: Remove hard-coded PCA9555 fields from ioexpander.h definitons. Add support for an attach() method that may be used when any subset of pin interrupts occur. PCA9555 Driver: Replace the signalling logic with a simple callback using the new definitons of ioexpander.h. This repartitioning of functionality is necessary because (1) the I/O expander driver is the lower-lower part of any driver that uses GPIOs (include the GPIO driver itself) and should not be interacting directly with the much higher level application layer. And (2) in order to be compatible with the GPIO driver (and any arbitrary upper half driver), the PCA9555 should not directly signal, but should call back into the upper half. The upper half driver that interacts directly with the application is the appropriate place to be generating signal.
2016-08-01 01:09:02 +08:00
---help---
This is the maximum number of interrupt callbacks supported
Add PCF8574 I/O Expander driver. Some cleanup also of other expander drivers.
2016-08-02 01:10:11 +08:00
config PCA9555_SHADOW_MODE
bool "Use Shadow Mode instead of Read-Modify-Write Operations"
default n
---help---
This setting enables a mode where the output and pin
configuration registers are held in RAM.
With this for example we do not need to read back the
output-register every time we want to change one pin.
We do instead change the bit in the internal register
and then just write this register to the IO-Expander.
This reduces bus traffic and eliminates the problem of
EMC-caused toggling of output pins.
config PCA9555_RETRY
bool "Retry to send commands and data at I2C communication errors"
default n
---help---
Retry to send commands and data if a I2C-communication
error occurs (eg. caused by EMC).
This commit adds: -headers in nuttx/ioexpander to define the "generic" ioexpander framework -files in drivers/ioexpander for the implementation of the NXP PCA9555 framework -bindings in drivers/Kconfig and drivers/Makefile From Sebastien Lorquet
2015-07-09 21:31:22 +08:00
endif # IOEXPANDER_PCA9555
Include support for PCA9555 interrupt driven IO changes detection. Currently using a signal, and a single notified task. signal handling support moved to generic IO expander header (not pca specific)
2015-11-17 21:09:43 +08:00
driver/ioexpander: adds driver for the PCA9538 I2C ioexpander
2020-02-19 23:09:52 +08:00
config IOEXPANDER_PCA9538
bool "PCA9538 I2C IO expander"
default n
depends on I2C
---help---
Enable support for the NXP PCA9538 IO Expander
if IOEXPANDER_PCA9538
config PCA9538_MULTIPLE
bool "Multiple PCA9538 Devices"
default n
---help---
Can be defined to support multiple PCA9538 devices on board.
config PCA9538_INT_ENABLE
bool "Enable PCA9538 Interrupt Support"
default n
select IOEXPANDER_INT_ENABLE
---help---
Enable driver interrupt functionality
config PCA9538_INT_NCALLBACKS
int "Max number of interrupt callbacks"
default 4
depends on PCA9538_INT_ENABLE
---help---
This is the maximum number of interrupt callbacks supported
config PCA9538_SHADOW_MODE
bool "Use Shadow Mode instead of Read-Modify-Write Operations"
default n
---help---
This setting enables a mode where the output and pin
configuration registers are held in RAM.
With this for example we do not need to read back the
output-register every time we want to change one pin.
We do instead change the bit in the internal register
and then just write this register to the IO-Expander.
This reduces bus traffic and eliminates the problem of
EMC-caused toggling of output pins.
config PCA9538_RETRY
bool "Retry to send commands and data at I2C communication errors"
default n
---help---
Retry to send commands and data if a I2C-communication
error occurs (eg. caused by EMC).
endif # IOEXPANDER_PCA9538
First (untested) cut at a TCA64XX I/O Expander driver leverages from Project Ara
2016-08-01 09:52:44 +08:00
config IOEXPANDER_TCA64XX
bool "TCA64XX I2C IO expander"
default n
SIM: Add a simulated I/O Expander driver
2016-08-03 23:44:48 +08:00
depends on I2C && EXPERIMENTAL
First (untested) cut at a TCA64XX I/O Expander driver leverages from Project Ara
2016-08-01 09:52:44 +08:00
---help---
Add PCF8574 I/O Expander driver. Some cleanup also of other expander drivers.
2016-08-02 01:10:11 +08:00
Enable support for the TCA64XX IO Expander
First (untested) cut at a TCA64XX I/O Expander driver leverages from Project Ara
2016-08-01 09:52:44 +08:00
if IOEXPANDER_TCA64XX
config TCA64XX_MULTIPLE
bool "Multiple TCA64XX Devices"
default n
---help---
Can be defined to support multiple TCA64XX devices on board.
config TCA64XX_INT_ENABLE
bool "Enable TCA64XX Interrupt Support"
default n
select IOEXPANDER_INT_ENABLE
---help---
Enable driver interrupt functionality
config TCA64XX_INT_NCALLBACKS
int "Max number of interrupt callbacks"
default 4
depends on TCA64XX_INT_ENABLE
---help---
This is the maximum number of interrupt callbacks supported
config TCA64XX_INT_POLL
bool "Enable interrupt poll"
default n
---help---
Enable polling for missed interrupts.
config TCA64XX_INT_POLLDELAY
int "Interrupt poll delay (used)"
default 500000
depends on TCA64XX_INT_POLL
---help---
This microsecond delay defines the polling rate for missed interrupts.
endif # IOEXPANDER_TCA64XX
Add PCF8574 I/O Expander driver. Some cleanup also of other expander drivers.
2016-08-02 01:10:11 +08:00
config IOEXPANDER_PCF8574
bool "PCF8574 I2C IO expander"
default n
SIM: Add a simulated I/O Expander driver
2016-08-03 23:44:48 +08:00
depends on I2C && EXPERIMENTAL
Add PCF8574 I/O Expander driver. Some cleanup also of other expander drivers.
2016-08-02 01:10:11 +08:00
---help---
Enable support for the PCF8574 IO Expander
if IOEXPANDER_PCF8574
config PCF8574_MULTIPLE
bool "Multiple PCF8574 Devices"
default n
---help---
Can be defined to support multiple PCF8574 devices on board.
config PCF8574_INT_ENABLE
bool "Enable PCF8574 Interrupt Support"
default n
select IOEXPANDER_INT_ENABLE
---help---
Enable driver interrupt functionality
config PCF8574_INT_NCALLBACKS
int "Max number of interrupt callbacks"
default 4
depends on PCF8574_INT_ENABLE
---help---
This is the maximum number of interrupt callbacks supported
config PCF8574_INT_POLL
bool "Enable interrupt poll"
default n
---help---
Enable polling for missed interrupts.
config PCF8574_INT_POLLDELAY
int "Interrupt poll delay (used)"
default 500000
depends on PCF8574_INT_POLL
---help---
This microsecond delay defines the polling rate for missed interrupts.
endif # IOEXPANDER_PCF8574
Include support for PCA9555 interrupt driven IO changes detection. Currently using a signal, and a single notified task. signal handling support moved to generic IO expander header (not pca specific)
2015-11-17 21:09:43 +08:00
config IOEXPANDER_INT_ENABLE
bool
First (untested) cut at a TCA64XX I/O Expander driver leverages from Project Ara
2016-08-01 09:52:44 +08:00
default n
Include support for PCA9555 interrupt driven IO changes detection. Currently using a signal, and a single notified task. signal handling support moved to generic IO expander header (not pca specific)
2015-11-17 21:09:43 +08:00
---help---
This is the global INT supported flag for io expanders
I/O Expander: Remove hard-coded PCA9555 fields from ioexpander.h definitons. Add support for an attach() method that may be used when any subset of pin interrupts occur. PCA9555 Driver: Replace the signalling logic with a simple callback using the new definitons of ioexpander.h. This repartitioning of functionality is necessary because (1) the I/O expander driver is the lower-lower part of any driver that uses GPIOs (include the GPIO driver itself) and should not be interacting directly with the much higher level application layer. And (2) in order to be compatible with the GPIO driver (and any arbitrary upper half driver), the PCA9555 should not directly signal, but should call back into the upper half. The upper half driver that interacts directly with the application is the appropriate place to be generating signal.
2016-08-01 01:09:02 +08:00
config IOEXPANDER_NPINS
int "Number of pins"
default 16
---help---
Maximum number of pins supported per driver.
Include support for PCA9555 interrupt driven IO changes detection. Currently using a signal, and a single notified task. signal handling support moved to generic IO expander header (not pca specific)
2015-11-17 21:09:43 +08:00
config IOEXPANDER_MULTIPIN
bool "Support multi-pin access routines"
default n
---help---
This settings enable the definition of routines for
optimized simultaneous access to multiple pins.
drivrs/ioexpander: Add support for a very simple GPIO drivers. It supports only pre-conrigured input and output pins and only basic input and output operations.
2016-06-24 23:43:49 +08:00
endif # IOEXPANDER
config DEV_GPIO
bool "GPIO driver"
default n
---help---
Enables a simple GPIO input/output driver to support application-
space testing of hardware.
drivers/ioexpander: Support multiple registrations of GPIO signal events.
2018-11-08 22:29:22 +08:00
config DEV_GPIO_NSIGNALS
int "Max number of signals"
default 1
depends on DEV_GPIO
---help---
The maximum number of signals that can be registered with the GPIO
driver
Add a GPIO lower-half driver that can be used to register a GPIO character driver for accessing pins on an I/O expander.
2016-08-01 22:43:10 +08:00
config GPIO_LOWER_HALF
bool "GPIO Lower Half"
default n
depends on DEV_GPIO && IOEXPANDER
---help---
Enable support for a lower half driver that provides GPIO driver
support for I/O expander pins.
Squashed commit of the following: driver/ioexpander: Add gpio_pin_unregister function to GPIO driver driver/ioexpander: Add pinset struct to GPIO driver for interrupt pins larger than 64 driver/ioexpander: Initialize pintype/inttype when registering ioexpander device driver/ioexpander: Add SETPINTYPE ioctl command to the GPIO driver
2018-08-27 23:25:11 +08:00
if GPIO_LOWER_HALF
config GPIO_LOWER_HALF_INTTYPE
int "default interrupt type for GPIO_INTERRUPT_PIN pintype"
default 14
---help---
This is the default interrupt type (IOEXPANDER_VAL_BOTH) for
GPIO_INTERRUPT_PIN pintype in gplf driver register.
endif
drivrs/ioexpander: Add support for a very simple GPIO drivers. It supports only pre-conrigured input and output pins and only basic input and output operations.
2016-06-24 23:43:49 +08:00
endmenu # IO Expander/GPIO Support