Commit Graph

5 Commits

Author SHA1 Message Date
Ryan McClelland 9ddc94e0d4 drivers: i3c: specify start addr when searching for a free addr
For example, if a driver needed to reserve address before it does a
ENTDAA, it would need to get free address in a loop, but the get
free address func would return the same address everytime. It needs
the start address, which would be the last free address it go, to
be passed in to get the next free address.

Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
2023-11-13 09:43:26 +01:00
Ryan McClelland 62f22f8d3b drivers: i3c: i3c attach/detach api
There are some needs to attach and reattach i3c/i2c devices at runtime
Some I2C devices can have special registers where the address can be
changed at runtime. Also some I3C devices can be powered off at runtime
freeing up the address space they take up. These new APIs allow for these
to be changed at runtime. This also moves some config/data in to a common
i3c config/data structure which would allow the api to operate on to be
common for all I3C drivers.

Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
2023-03-29 07:46:37 -04:00
Ryan McClelland 71c5ccb1ef drivers: i3c: add reattach_i3c_device api
Some I3C controllers have retaining registers which are used to contain
the DA of the i3c device. This needs to be updated every time the DA is
updated with SETNEWDA or SETDASA

Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
2023-03-29 07:46:37 -04:00
Ryan McClelland 371470d608 i3c: GETMWL and GETMRL may be optionally supported if no settable limit
According to section 5.1.9.3.5 and 5.1.9.3.6 of the I3C Specification
v1.1.1. This CCC is may be optionally supported if the target device
has no settable limit.

Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
2022-12-12 15:51:16 -05:00
Daniel Leung ce7058d2f5 drivers: i3c: introduce I3C API for controllers
This introduces the I3C API for I3C controllers. Currently,
this supports one controller per bus under Zephyr.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2022-09-09 17:42:33 -04:00