zara/zephyr - zephyr - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Fabio Baltieri	01be4aff40	input: gpio_qdec: add power management support Add power management support to the gpio-qdec driver. This is a bit complicated by the fact that the driver has two modes of operation and the interrupt, timer and idle work ineract with each other. The suspend sequence is: - set the suspended bit (inhibits the poll timer so that it does not resubmit the idle work) - cancel the idle work (so that it does not schedule and re-set the interrupt or timers) - disable interrupts (if used) - stop the sampling timer - disconnect the pins The resume sequence is more or less the opposite. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	1 year ago
Fabio Baltieri	1dd2307b3f	input: gpio_qdec: add optical encoder support Change the gpio_qdec driver to support optical encoders. Add a property to use for defining an arbitrary number of GPIOs for the sensing devices (typically infrared LEDs, but could also be the biasing for the phototransistor), and one for adding a delay between turning those on and reading the pin status. The infrared LEDs typically consume a non negligible amount of power, so there's also a new idle-poll-time-us property that enables two possible modes of operation: - if idle-poll-time-us is zero (default) the LEDs are enabled all the time and the driver enters polling mode using the GPIO interrupt as with mechanical encoders. This is usable for mains powered devices and has the lowest overhead on the CPU. - if idle-poll-time-us is non zero, then the driver polls the encoder all the time, turning on the LEDs just before reading the state and shutting them off immediately after, but when the encoder is idle it switches the polling rate to idle-poll-time-us to save power, and only polls at sample-time-us when some movement is detected. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	1 year ago
Fabio Baltieri	91ee5c4db2	input: gpio_qdec: rename gpio to ab_gpio Rename gpio to ab_gpio, this is in preparation for adding another gpio pointer. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	1 year ago
Fabio Baltieri	c161253287	drivers: input: fix few types Fix few wrong types in various input drivers. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	2 years ago
Fabio Baltieri	ec71be5d9d	drivers,subsys: fix few missing k_work_delayable_from_work Fix few instances of delayable work handlers using the k_work pointer directly in a CONTAINER_OF pointing to a k_work_delayable. This is harmless since the k_work is the first element in k_work_delayable, but using k_work_delayable_from_work is the right way of handling it. Change a couple of explicit CONTAINER_OF doing the same work as the macro in the process. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	2 years ago
Fabio Baltieri	d95c12848d	drivers: input: add few missing gpio_add_callback return check Add few missing check on gpio_add_callback and gpio_add_callback_dt calls, fixes a coverity warning. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	2 years ago
Fabio Baltieri	2790106c33	input: add a gpio qdec input driver Add a GPIO based quadrature decoder driver that reports relative axes movements using the input subsystem. Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>	2 years ago