Commit graph

28 commits

Author SHA1 Message Date
Johann Fischer 5e5ea9a21d drivers: use unsigned int for irq_lock()
irq_lock() returns an unsigned integer key.
Generated by spatch using semantic patch
scripts/coccinelle/irq_lock.cocci

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
2022-07-14 14:37:13 -05:00
Gerard Marull-Paretas fb60aab245 drivers: migrate includes to <zephyr/...>
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>
2022-05-06 19:58:21 +02:00
Gerson Fernando Budke 4c5e94317c drivers: rtc: Add sam0 support to pinctrl
This add support to pinctrl at Atmel sam0 rtc driver. It allows to
define pins to be used for tamper detection.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
2022-03-24 15:45:37 -07:00
Gerard Marull-Paretas b1ced75386 drivers: timer: move initialization setup to drivers
The weak symbol sys_clock_driver_init has been removed, therefore moving
the init responsability to the drivers themselves. As a result, the init
function has now been made static on all drivers and moved to the
bottom, following the convention used in other areas.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-12-04 07:34:53 -05:00
Anas Nashif 5d6c219210 drivers: device: do not reuse tag name 'device'
Do not reuse tag name (misra rule 5.7).

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-22 19:48:14 -04:00
Anas Nashif 12b53d121e clock: rename z_timer_cycle_get_32 -> sys_clock_cycle_get_32
This is another API that is being used in all timer drivers and is not
internal to the clock subsystem. Remove the leading z_ and make promote
it to a cross-subsystem API.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-19 11:22:17 -04:00
Anas Nashif 9c1efe6b4b clock: remove z_ from semi-public APIs
The clock/timer APIs are not application facing APIs, however, similar
to arch_ and a few other APIs they are available to implement drivers
and add support for new hardware and are documented and available to be
used outside of the clock/kernel subsystems.

Remove the leading z_ and provide them as clock_* APIs for someone
writing a new timer driver to use.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-19 11:22:17 -04:00
Trond Einar Snekvik 86c793af3f sys: util: Replace MIN(MAX(a, b), c) with CLAMP
Replaces all existing variants of value clamping with the MIN and MAX
macros with the CLAMP macro.

Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
2020-11-05 12:12:17 +01:00
Tomasz Bursztyka 4dcfb5531c isr: Normalize usage of device instance through ISR
The goal of this patch is to replace the 'void *' parameter by 'struct
device *' if they use such variable or just 'const void *' on all
relevant ISRs

This will avoid not-so-nice const qualifier tweaks when device instances
will be constant.

Note that only the ISR passed to IRQ_CONNECT are of interest here.

In order to do so, the script fix_isr.py below is necessary:

from pathlib import Path
import subprocess
import pickle
import mmap
import sys
import re
import os

cocci_template = """
@r_fix_isr_0
@
type ret_type;
identifier P;
identifier D;
@@
-ret_type <!fn!>(void *P)
+ret_type <!fn!>(const struct device *P)
{
 ...
(
 const struct device *D = (const struct device *)P;
|
 const struct device *D = P;
)
 ...
}

@r_fix_isr_1
@
type ret_type;
identifier P;
identifier D;
@@
-ret_type <!fn!>(void *P)
+ret_type <!fn!>(const struct device *P)
{
 ...
 const struct device *D;
 ...
(
 D = (const struct device *)P;
|
 D = P;
)
 ...
}

@r_fix_isr_2
@
type ret_type;
identifier A;
@@
-ret_type <!fn!>(void *A)
+ret_type <!fn!>(const void *A)
{
 ...
}

@r_fix_isr_3
@
const struct device *D;
@@
-<!fn!>((void *)D);
+<!fn!>(D);

@r_fix_isr_4
@
type ret_type;
identifier D;
identifier P;
@@
-ret_type <!fn!>(const struct device *P)
+ret_type <!fn!>(const struct device *D)
{
 ...
(
-const struct device *D = (const struct device *)P;
|
-const struct device *D = P;
)
 ...
}

@r_fix_isr_5
@
type ret_type;
identifier D;
identifier P;
@@
-ret_type <!fn!>(const struct device *P)
+ret_type <!fn!>(const struct device *D)
{
 ...
-const struct device *D;
...
(
-D = (const struct device *)P;
|
-D = P;
)
 ...
}
"""

def find_isr(fn):
    db = []
    data = None
    start = 0

    try:
        with open(fn, 'r+') as f:
            data = str(mmap.mmap(f.fileno(), 0).read())
    except Exception as e:
        return db

    while True:
        isr = ""
        irq = data.find('IRQ_CONNECT', start)
        while irq > -1:
            p = 1
            arg = 1
            p_o = data.find('(', irq)
            if p_o < 0:
                irq = -1
                break;

            pos = p_o + 1

            while p > 0:
                if data[pos] == ')':
                    p -= 1
                elif data[pos] == '(':
                    p += 1
                elif data[pos] == ',' and p == 1:
                    arg += 1

                if arg == 3:
                    isr += data[pos]

                pos += 1

            isr = isr.strip(',\\n\\t ')
            if isr not in db and len(isr) > 0:
                db.append(isr)

            start = pos
            break

        if irq < 0:
            break

    return db

def patch_isr(fn, isr_list):
    if len(isr_list) <= 0:
        return

    for isr in isr_list:
        tmplt = cocci_template.replace('<!fn!>', isr)
        with open('/tmp/isr_fix.cocci', 'w') as f:
            f.write(tmplt)

        cmd = ['spatch', '--sp-file', '/tmp/isr_fix.cocci', '--in-place', fn]

        subprocess.run(cmd)

def process_files(path):
    if path.is_file() and path.suffix in ['.h', '.c']:
        p = str(path.parent) + '/' + path.name
        isr_list = find_isr(p)
        patch_isr(p, isr_list)
    elif path.is_dir():
        for p in path.iterdir():
            process_files(p)

if len(sys.argv) < 2:
    print("You need to provide a dir/file path")
    sys.exit(1)

process_files(Path(sys.argv[1]))

And is run: ./fix_isr.py <zephyr root directory>

Finally, some files needed manual fixes such.

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Tomasz Bursztyka e18fcbba5a device: Const-ify all device driver instance pointers
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>
2020-09-02 13:48:13 +02:00
Michael Hope 0bc3585800 drivers: timer: enable read synchronisation mode for the SAMD/E5x
The COUNT register on the SAMD/E5x RTC can only be read if the read
synchronisation mode is enabled.

Signed-off-by: Michael Hope <mlhx@google.com>
2020-07-03 12:20:03 -04:00
Michael Hope 89466d57ea drivers: timer: fix the use of K_FOREVER for the SAMD/E5x
Change K_FOREVER for K_TICKS_FOREVER.

Signed-off-by: Michael Hope <mlhx@google.com>
2020-07-03 12:20:03 -04:00
Kumar Gala a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Kumar Gala 2cd4681bd5 drivers: timer: sam0_rtc_timer: Fix incorrect DT_INST conversion
clock-generator is a normal property.  To access it we should use
DT_INST_PROP(0, clock_generator) and not DT_INST_CLOCKS_CELL().

Fixes: #24399

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-16 14:09:23 +02:00
Oleg Zhurakivskyy b1e1f64d14 global: Replace BUILD_ASSERT_MSG() with BUILD_ASSERT()
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-31 07:18:06 +02:00
Kumar Gala 28870e7a32 drivers: atmel sam0: Convert atmel sam0 drivers to new DT_INST macros
Convert older DT_INST_ macro use in atmel sam0 drivers to the new
include/devicetree.h DT_INST macro APIs.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-03-27 11:02:57 -05:00
Carles Cufi 4b37a8f3a4 Revert "global: Replace BUILD_ASSERT_MSG() with BUILD_ASSERT()"
This reverts commit 8739517107.

Pull Request #23437 was merged by mistake with an invalid manifest.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2020-03-19 18:45:13 +01:00
Oleg Zhurakivskyy 8739517107 global: Replace BUILD_ASSERT_MSG() with BUILD_ASSERT()
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
2020-03-19 15:47:53 +01:00
Benjamin Valentin cd0873015a timer: sam0_rtc_timer: Add support for SAME54
The RTC peripheral found in the SAMD5x/SAME5x MCUs is very
simmilar to the one found in existing sam0 devices with only
a few changes to register names and the clock source selection.

Signed-off-by: Benjamin Valentin <benpicco@googlemail.com>
2019-12-21 11:15:52 -05:00
Piotr Zięcik 0c0c0d93ea drivers: timer: Do not use CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC
On some SoCs the frequency of the system clock is obtained at run time
as the exact configuration of the hardware is not known at compile time.
On such platforms using CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC define
directly introduces timing errors.

This commit replaces CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC by the call
to inline function sys_clock_hw_cycles_per_sec() which always returns
correct frequency of the system clock.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2019-07-24 15:10:02 +02:00
Anas Nashif 17ddd1714c cleanup: include/: move clock_control.h to drivers/clock_control.h
move clock_control.h to drivers/clock_control.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>
2019-06-27 22:55:49 -04:00
Anas Nashif 68c389c1f8 include: move system timer headers to include/drivers/timer/
Move internal and architecture specific headers from include/drivers to
subfolder for timer:

   include/drivers/timer

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-25 15:27:00 -04:00
Kumar Gala a2693975d7 dts: Convert from DT_<COMPAT>_<INSTANCE>_<PROP> to DT_INST...
Change code from using now deprecated DT_<COMPAT>_<INSTANCE>_<PROP>
defines to using DT_INST_<INSTANCE>_<COMPAT>_<PROP>.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-14 08:02:15 -05:00
Derek Hageman b6cc998776 drivers: timer: sam0: Remove RTC defines from dts_fixup.h
Move SAM0 flash to use the raw defines generated from the DTS
parsing.

Signed-off-by: Derek Hageman <hageman@inthat.cloud>
2019-05-03 08:46:57 -05:00
Patrik Flykt 24d71431e9 all: Add 'U' suffix when using unsigned variables
Add a 'U' suffix to values when computing and comparing against
unsigned variables.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-28 17:15:58 -05:00
Patrik Flykt 4344e27c26 all: Update reserved function names
Update reserved function names starting with one underscore, replacing
them as follows:
   '_k_' with 'z_'
   '_K_' with 'Z_'
   '_handler_' with 'z_handl_'
   '_Cstart' with 'z_cstart'
   '_Swap' with 'z_swap'

This renaming is done on both global and those static function names
in kernel/include and include/. Other static function names in kernel/
are renamed by removing the leading underscore. Other function names
not starting with any prefix listed above are renamed starting with
a 'z_' or 'Z_' prefix.

Function names starting with two or three leading underscores are not
automatcally renamed since these names will collide with the variants
with two or three leading underscores.

Various generator scripts have also been updated as well as perf,
linker and usb files. These are
   drivers/serial/uart_handlers.c
   include/linker/kobject-text.ld
   kernel/include/syscall_handler.h
   scripts/gen_kobject_list.py
   scripts/gen_syscall_header.py

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-11 13:48:42 -04:00
Carlos Stuart 75f77db432 include: misc: util.h: Rename min/max to MIN/MAX
There are issues using lowercase min and max macros when compiling a C++
application with a third-party toolchain such as GNU ARM Embedded when
using some STL headers i.e. <chrono>.

This is because there are actual C++ functions called min and max
defined in some of the STL headers and these macros interfere with them.
By changing the macros to UPPERCASE, which is consistent with almost all
other pre-processor macros this naming conflict is avoided.

All files that use these macros have been updated.

Signed-off-by: Carlos Stuart <carlosstuart1970@gmail.com>
2019-02-14 22:16:03 -05:00
Martin Benda 9653e15139 drivers: timer: Add RTC-based system timer for Atmel SAM0 series MCU
Add sam0_rtc_driver that implements system timer API on top of the RTC
and can be used as a replacement for the default systick timer.

Signed-off-by: Martin Benda <martin.benda@omsquare.com>
2019-01-29 17:58:05 +01:00