Based on review of the similar charger driver API, it's been demonstrated
from the community that embedding a per value property type when fetching
properties. Separating off the property types from the property values
themselves also allow an array of property types to declared as static
const.
Break up fuel_gauge_property struct into a fuel_gauge_prop_val union and a
fuel_gauge_prop_t property type as inputs into fuel gauge API functions.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
The fuel_gauge_get_prop() function prototype declares a function that
retrieves multiple fuel gauge properties at once. The naming suggests it
ought to fetch a singular property at a time. Moreso, some clients may just
want to fetch properties one at a time and may feel uncomfortable using a
prototype for fetching multiple properties when wanting to fetch them one
at a time.
Modify fuel_gauge_get_prop() to fetch a single property and add
fuel_gauge_get_props() to support fetching multiple properties. Modify
existing tests/drivers/samples.
This is part of #61818 work.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
The fuel gauge API uses separate get/set property structs to indicate what
properties are readable or writable. This lead to duplication in property
names and potential confusion for new users of the API. See issue #61818.
In addition to above, drivers already determine at runtime if a property is
supported for read or write actions.
Join the get/set fuel gauge property structs as a single struct.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
Many fuel gauge ICs offer a battery cutoff/shipping mode functionality that
cutoff charge from the battery. This is often useful for preserving battery
charge on devices while in storage.
Add battery cutoff support to the fuel gauge API with a generic default SBS
driver showing an example of support in tests.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
In order to support easier setup of test scenarios with fuel gauge
emulators, we should expose an API that can change internal emulator state.
Add a minimal fuel gauge emulator backend API for setting the charging
current and voltage with a sample implementation in the emul_sbs_gauge with
an associated driver test.
Signed-off-by: Aaron Massey <aaronmassey@google.com>
