The init infrastructure, found in `init.h`, is currently used by:
- `SYS_INIT`: to call functions before `main`
- `DEVICE_*`: to initialize devices
They are all sorted according to an initialization level + a priority.
`SYS_INIT` calls are really orthogonal to devices, however, the required
function signature requires a `const struct device *dev` as a first
argument. The only reason for that is because the same init machinery is
used by devices, so we have something like:
```c
struct init_entry {
int (*init)(const struct device *dev);
/* only set by DEVICE_*, otherwise NULL */
const struct device *dev;
}
```
As a result, we end up with such weird/ugly pattern:
```c
static int my_init(const struct device *dev)
{
/* always NULL! add ARG_UNUSED to avoid compiler warning */
ARG_UNUSED(dev);
...
}
```
This is really a result of poor internals isolation. This patch proposes
a to make init entries more flexible so that they can accept sytem
initialization calls like this:
```c
static int my_init(void)
{
...
}
```
This is achieved using a union:
```c
union init_function {
/* for SYS_INIT, used when init_entry.dev == NULL */
int (*sys)(void);
/* for DEVICE*, used when init_entry.dev != NULL */
int (*dev)(const struct device *dev);
};
struct init_entry {
/* stores init function (either for SYS_INIT or DEVICE*)
union init_function init_fn;
/* stores device pointer for DEVICE*, NULL for SYS_INIT. Allows
* to know which union entry to call.
*/
const struct device *dev;
}
```
This solution **does not increase ROM usage**, and allows to offer clean
public APIs for both SYS_INIT and DEVICE*. Note that however, init
machinery keeps a coupling with devices.
**NOTE**: This is a breaking change! All `SYS_INIT` functions will need
to be converted to the new signature. See the script offered in the
following commit.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
init: convert SYS_INIT functions to the new signature
Conversion scripted using scripts/utils/migrate_sys_init.py.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
manifest: update projects for SYS_INIT changes
Update modules with updated SYS_INIT calls:
- hal_ti
- lvgl
- sof
- TraceRecorderSource
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
tests: devicetree: devices: adjust test
Adjust test according to the recently introduced SYS_INIT
infrastructure.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
tests: kernel: threads: adjust SYS_INIT call
Adjust to the new signature: int (*init_fn)(void);
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Change automated searching for files using "IRQ_CONNECT()" API not
including <zephyr/irq.h>.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
File still not being removed due to out-of-tree usage. We will drop it
once the external code has stopped referencing it.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Convert timer driver to use a light weight syscon and DTS and convert
register information to use offsets and sys_read/sys_write instead of
structs.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Cleanup soc.h and move interrupt defines into own headers. Rename some
of the defines for ACE to have a unified namespace.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The DW register block was duplicated into the ACE header while we had
the same thing in the driver. Move everything to the driver as the first
step with further improvements planned on top of this.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
It is better to use 64-bit variable types for calculating the number
of elapsed ticks than 32-bit variable types. This guards against the
propagation of calculation errors should the lower 32-bits of the timer
counter roll over multiple times before the timer ISR is serviced.
(Such a scenario can easily occur when pausing the system for an
extended period of time with a debugging device such as a Lauterbach.)
Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
Declare clock control in the shim header per SoC and remove ifdeffry
from the driver simplifiying it and making it ready for the next
platform.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
using once single header to support multiple socs and product
generations is error prone and not easily maintained.
Over time we have been adding conditional code in headers and extending
structs to support new HW features which becomes a problem.
Goal is to keep platform headers in sync with hardware specification and
allow of introduction of new platforms and hardware features by just
introducing a new SoC with its own set of headers.
This is now just a copy of existing cavs-shim.h with slight changes,
goal is to clean this up long term and sync with hardware datasheets and
align on naming as well.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
These two timers were sharing pretty much the same code. Actually
mtl timer was a "superset" of cavs timer. Just merge them into a
single one called intel audio dsp timer (intel_adsp_timer).
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2022-07-06 15:11:07 -04:00
Renamed from drivers/timer/ace_v1x_timer.c (Browse further)
