disk_access functions were called from an interupt context, thus
crashing on mutexes (no sleep is allowed in interrupt context).
The usage of a spinlock is permitted. The functions guarded by
the spinlock are executed very quickly anyway, so the spinlock
is applicable.
Signed-off-by: Alexi Demers <alexi.demers@axceta.com>
Add DISK_IOCTL_CTRL_DEINIT ioctl command to disk subsystem. When
disk_access_ioctl() is called with this command, the disk will be
de-initialized. After this IOCTL completes, the disk can safely be
reinitialized.
Fixes#60628
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Add DISK_IOCTL_CTRL_INIT IOCTL to initialize a disk. This IOCTL is
intended to replace disk_access_init() for new applications, but
disk_access_init() is kept for legacy compatibility. The INIT IOCTL is
added to better match the path that will be used for disk
de-initialization. Like the disk_access_init() calls,
DISK_IOCTL_CTRL_INIT calls are reference counted
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Reference count initialization calls for disks. This changes the
behavior of the disk_access_init() function, such that disks will no
longer be initialized again if the first disk access init call
succeeds.
Disk access is reference counted in preparation for supporting disk
de-initialization, where a balanced number of disk de-initialization
calls with disk initialization calls will de-initialize the disk.
Also, remove code in disk drivers that was already checking against
duplicate disk_access_init() calls.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Mutex and double-linked list can be statically initialized.
This removes a little bit of boot time overhead.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
In order to bring consistency in-tree, migrate all subsystems code to
the new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Zephyr already has a directory for storage API relevant headers.
Move disk_access.h header to include/storage where it fits better
structurally.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
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>
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move misc/__assert.h to sys/__assert.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move disk_access.h to disk/disk_access.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Add support for enabling multiple disk interfaces (Flash, RAM)
simultaneously in Zephyr by introducing a simple disk interface
framework where we can register multiple disks which would
interface with different storage devices. This would enable us
to have multiple instances of FATFS in Zephyr.
Add support for mass storage drive disk name which will be
used as an argument when calling the disk interface API's.
Enable multiple volumes support configuration in
ELM FAT library.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
