Remove support for GPIO_ACCESS_BY_PORT in the config function
as configuration by port is going away.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Since the GPIO expander is a I2C device, any read/write to
the registers has high latency. Therefore, semaphore is
introduced to prevent multiple threads to manipulate
the GPIOs at the same time.
Also make sure that we are not doing I2C transactions
within ISRs.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Only update the internal register cache after successful write,
or else it would get out of sync with hardware.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The register pair for each port in the GPIO expander are
port 0 first then port 1. This would not work for big
endian systems with the u16_t port value. So need to
swap the byte ordering on such system.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The structures defined in the header file are only used by
the driver source file, and should not be used by others.
So roll the header file into the source file so it won't
get #include.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Use I2C burst write to write 2 bytes to each pair of registers
instead of 2 separate transactions of writing 1 byte.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
PCA95XX is a series of compatible I2C-based GPIO expanders,
with common registers on input/output, polarity and configuration.
This renames the original PCAL9535A driver to PCA95XX to indicate
that it can support this series. Additional features on variants
are guarded by kconfigs.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Update driver code and board files to use new GPIO configuration flags
such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver
API as well as gpio_pin_interrupt_configure function.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The interrupt functionality of this driver is incomplete,
but for the sake of not slowing down the GPIO API refactor,
I'm just returning -ENOTSUP until we can track down the issue.
Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
The 1pin test fails to pass because it expects to be able to
manipulate more than 16 pins. Since the intent is to filter invalid
pins at the wrapper level remove the validation performed within the
driver.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Some drivers masked the set of signaled pins based on enabled
interrupts, some did not. For those that did not the 2-pin test could
fail. The documentation does not imply that pins unrelated to the
callback participate in the notification process, so do the filtering
in the generic callback loop.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
In order to reliably detect interrupts the interrupt must be
acknowledged before the callback is invoked.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
In the fine print of the manual it's stated that attempts to enable a
pull in one direction while the pull in the other direction is enabled
are ignored. This has been confirmed. Change logic to disable both
pulls, then enable the one that's configured, if any.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
In order to reliably detect interrupts the interrupt must be
acknowledged before the callback is invoked.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Correct DRDY active level to default active-high, switch to new
interrupt configuration.
Also fix a common bug where an already-active DRDY signal is not
properly handled.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Update driver code and board files to use new GPIO configuration flags
such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver
API as well as gpio_pin_interrupt_configure function.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
- Updates gpio driver and device tree files to the new GPIO Config flags
- Implements the new port_* APIs
- Update I2C and PWM Drivers to use new GPIO config
- Add esp32.overlay to gpio_basic_api test
- refactor convert_int_type, regs struct
- remove config_polarity
- add kConfig notes
Tests:
- samples/basic/blinky
- samples/basic/button
- tests/drivers/gpio/gpio_basic_api
- tests/drivers/gpio/gpio_api_1pin
Board:
- esp32 DevKitC V4
Note about interrupts:
The ESP32 requires specifying a CPU interrupt to be used for GPIO
interrupt signals. CPU interrupts can be either level or edge (or
special) triggered, but not both.
Please check gpio/Kconfig.esp32 for more info.
Signed-off-by: Mohamed ElShahawi <ExtremeGTX@hotmail.com>
As the mmio32 is more of a library than a proper driver, just implement
the new port functions and have pin_interrupt_configure marked pretty
much as not supported.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Updates the rv32m1 gpio driver and all associated boards to use new
device tree compatible gpio configuration flags. Implements new port
get/set/clear/toggle and pin_interrupt_configure functions recently
added to the gpio api.
Assumes the gpio api layer handles translating logical flags to physical
flags.
Stops quietly reconfiguring pinmuxes to gpio mode. The pinmux must now
be configured explicitly in the board's pinmux.c or in the application.
Tested with:
- samples/basic/blinky
- samples/basic/button
- tests/drivers/gpio/gpio_api_1pin
On boards:
- rv32m1_vega_ri5cy
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Remove redundant interrupt code from gpio_mcux_configure, move the rest
to gpio_mcux_pin_interrupt_configure.
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Update driver code and board files to use new GPIO configuration flags
such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver
API as well as gpio_pin_interrupt_configure function.
We treat GPIO_INT_MODE_LEVEL as not supported as the hardware doesn't
seem to handle level interrupts as one would expect. Looking into this
further to determine if its a HW bug or some misconfiguration in the
software.
We don't support dynamic setting of PULL_UP/PULL_DOWN config as this is
handled by pinctrl for the current boards we support the CMSDK AHB
driver on.
Tested on musca-a board.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
LPC GPIO architecture uses multiple devices.
GPIO input is routed via INPUTMUX to the PINT
device which roots the interrupt to NVIC.
Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com>
Updates the mcux lpc driver and all associated boards to use new
device tree compatible gpio configuration flags. Implements new port
get/set/clear/toggle functions recently added to the gpio api.
ISR functions to be added later.
Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com>
stm32_exti_enable was returning errors on line > 32 or line pointing
to non implemented line. Both conditions are hard-coded, hence there
is no use to detect them dynamically in the code.
Check them with assert. As a consequence, function could now be void.
Additionally, enable exti irq line only if both checks are passed.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Since it is now possible to disable/re-enable interrupts and
also to reconfigure an already configured interrupt, it is
now required to clear non requested triggers.
While it is not strictly requested, triggers are also cleared
when interrupt is disabled (assuming trigger should be configured
when interrupt is enabled).
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
fixup exti
Perform few clean up in stm32 gpio driver:
*Clean up uint32_t occurrences left over.
*Move function gpio_stm32_flags_to_conf from const to static
and remove useless parameter check
*Rework error handling in functoin gpio_stm32_config
*Remove gpio_stm32_int_enabled_port function and have direct call
to gpio_stm32_get_exti_source
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Updates the imx gpio driver and all associated boards to use new
device tree compatible gpio configuration flags. Implements new port
get/set/clear/toggle and pin_interrupt_configure functions recently
added to the gpio api.
Assumes the gpio api layer handles translating logical flags to physical
flags.
Tested with:
- samples/basic/blinky
- samples/basic/button
- tests/drivers/gpio/gpio_api_1pin
- tests/drivers/gpio/gpio_basic_api
On boards:
- udoo_neo_full_m4
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Updates the mcux igpio driver and all associated boards to use new
device tree compatible gpio configuration flags. Implements new port
get/set/clear/toggle and pin_interrupt_configure functions recently
added to the gpio api.
Assumes the gpio api layer handles translating logical flags to physical
flags.
Removes port configuration support since that feature is deprecated in
the new gpio api.
Tested with:
- samples/basic/blinky
- samples/basic/button
- tests/drivers/gpio/gpio_api_1pin
On boards:
- mimxrt1015_evk
- mimxrt1020_evk
- mimxrt1050_evk
- mimxrt1060_evk
- mimxrt1064_evk
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Implement the new GPIO driver APIs for the HT16K33 and update the
driver to use the new GPIO flags.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
On the TI CC32xx, the GPIO peripheral supports only 8 pins per port.
We should add assertions where appropriate to verify this.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Updates the cc13x2/cc26x2 gpio driver and all associated boards to use
new device tree compatible gpio configuration flags. Implements new port
get/set/clear/toggle and pin_interrupt_configure functions recently
added to the gpio api.
Tested with:
samples/basic/blinky
samples/basic/button
tests/drivers/gpio/gpio_api_1pin
tests/drivers/gpio/gpio_basic_api
On board:
cc1352r1_launchxl
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Updates the cc32xx gpio driver and all associated boards to use new
device tree compatible gpio configuration flags. Implements new port
get/set/clear/toggle and pin_interrupt_configure functions recently
added to the gpio api.
Tested with:
samples/basic/blinky
samples/basic/button
tests/drivers/gpio/gpio_api_1pin
tests/drivers/gpio/gpio_basic_api
On boards:
cc3220sf_launchxl
cc3235sf_launchxl
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Update driver code and board files to use new GPIO configuration flags
such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver
API.
Tested on external SX1509B breakout board and Thingy:52.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Update driver code and board files to use new GPIO configuration flags
such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver
API as well as gpio_pin_interrupt_configure function.
The interrupt triggering on both edges is a remnant from the old
Quark SE which has a customized DesignWare GPIO block. So remove
the support for both edges as the board is no longer supported.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The MCUX GPIO peripheral must be configured as either input or output.
Reject attempts to configure disconnected or bidirectional.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Update driver code and board files to use new GPIO configuration flags
such as GPIO_ACTIVE_LOW. Also add implementation of new port_* driver
API as well as gpio_pin_interrupt_configure function.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
