Emulators are difficult to work with, they generally require maintaining
some state in a mutable data struct. Since the emulator struct doesn't
support a data field like devices do, the pattern seems to be to add it
to the configuration. This makes following the logic of where things are
difficult.
1. Add a `struct emul *parent` structure to the espi/i2c/spi emulator
structs to make it easier when casting up.
2. Add a `void *data` field to `struct emul` to hold the data for
emulators.
Signed-off-by: Yuval Peress <peress@chromium.org>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Add an emulation controller which routes I2C traffic to attached
emulators depending on the I2C address selected. This allows drivers
for I2C peripherals to be tested on systems that don't have that
peripheral attached, with the emulator handling the I2C traffic.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
