Fixes compile warning:
drivers/eeprom/eeprom_emulator.c:645:13:
warning: 'rc' may be used uninitialized [-Wmaybe-uninitialized]
645 | int rc;
Signed-off-by: Nick Ward <nix.ward@gmail.com>
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>.
This patch proposes to then include <zephyr/kernel.h> instead of
<zephyr/zephyr.h> since it is more clear that you are including the
Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a
catch-all header that may be confusing. Most applications need to
include a bunch of other things to compile, e.g. driver headers or
subsystem headers like BT, logging, etc.
The idea of a catch-all header in Zephyr is probably not feasible
anyway. Reason is that Zephyr is not a library, like it could be for
example `libpython`. Zephyr provides many utilities nowadays: a kernel,
drivers, subsystems, etc and things will likely grow. A catch-all header
would be massive, difficult to keep up-to-date. It is also likely that
an application will only build a small subset. Note that subsystem-level
headers may use a catch-all approach to make things easier, though.
NOTE: This patch is **NOT** removing the header, just removing its usage
in-tree. I'd advocate for its deprecation (add a #warning on it), but I
understand many people will have concerns.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Stop using redundant DEV_DATA/DEV_CFG macros and use dev->data and
dev->config instead.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Refactors all of the EEPROM drivers to use a shared driver class
initialization priority configuration, CONFIG_EEPROM_INIT_PRIORITY, to
allow configuring EEPROM drivers separately from other devices. This is
similar to other driver classes like I2C and SPI.
The default is set to CONFIG_KERNEL_INIT_PRIORITY_DEVICE to preserve the
existing default initialization priority for most drivers. The
exceptions are at2x and emul drivers which have dependencies on SPI,
I2C, or flash drivers and must therefore initialize later than the
default device priority.
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
In the eeprom read operation, when rambuf was available
mutex was not unlocked after the read. Consequence of that is
that device was blocked after that read for incoming operations.
This commit fixes the issue
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
This patch removes scenario which was testing deprecated
API behaviors. Needed as As flash_write_protection_set() was
deprecated and became no-operation.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Modifications to incorporate latest write to new flash area
Modification to avoid writing garbage to new flash area when compactor
is called during init.
Modifications to allow erase at partition size instead of eeprom
pagesize.
Modifications to better separate rambuf usage from flash usage.
Corrected some errors in compactor
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
This driver emulates a EEPROM device in flash.
Reworked implementation with modified flash layout.
The emulation represents the EEPROM in flash as a region that is a
direct map of the eeprom data followed by a region where changes to
the eeprom data is stored. Changes are written as address-data
combinations. The size of such a combination is determined by the
flash write block size and the size of the eeprom (required address
space), with a minimum of 4 byte.
The eeprom page needs to be a multiple of the flash page. Multiple
eeprom pages is also so supported and increases the number of writes
that can be performed.
The eeprom size, pagesize and the flash partition used for the eeprom
are defined in the dts. The flash partition should allow at least two
eeprom pages. For fast read access a rambuffer can be enabled for the
eeprom (by setting the option rambuf in the dts).
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
