zephyr/drivers/gpio
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
..
CMakeLists.txt driver: gpio: add gpio driver support in NPCX series 2020-09-01 13:35:25 +02:00
gpio_cc13xx_cc26xx.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_cc32xx.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_cmsdk_ahb.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_cmsdk_ahb.h zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
gpio_dw_registers.h
gpio_dw.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_dw.h device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_esp32.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_gecko.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_handlers.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_ht16k33.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_imx.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_intel_apl.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_litex.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_lmp90xxx.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_lpc11u6x.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_mchp_xec.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_mcp23s17.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_mcp23s17.h device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_mcux_igpio.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_mcux_lpc.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_mcux.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_mmio32.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_npcx.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_nrfx.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_pca95xx.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_rv32m1.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_sam.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_sam0.c drivers: gpio: Fix device instance const qualifier loss 2020-09-02 13:48:13 +02:00
gpio_shell.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_sifive.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_stellaris.c isr: Normalize usage of device instance through ISR 2020-09-02 13:48:13 +02:00
gpio_stm32.c drivers: gpio: Fix device instance const qualifier loss 2020-09-02 13:48:13 +02:00
gpio_stm32.h drivers: gpio: Fix device instance const qualifier loss 2020-09-02 13:48:13 +02:00
gpio_sx1509b.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_utils.h device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
gpio_xlnx_axi.c device: Const-ify all device driver instance pointers 2020-09-02 13:48:13 +02:00
Kconfig driver: gpio: add gpio driver support in NPCX series 2020-09-01 13:35:25 +02:00
Kconfig.cc13xx_cc26xx
Kconfig.cc32xx drivers: cc32xx: use DT_INST_FOREACH to reduce code duplication 2020-04-26 06:05:10 -05:00
Kconfig.cmsdk_ahb
Kconfig.dw
Kconfig.esp32
Kconfig.gecko
Kconfig.ht16k33
Kconfig.imx
Kconfig.intel
Kconfig.litex
Kconfig.lmp90xxx
Kconfig.lpc11u6x drivers: gpio: add driver for NXP LPC11U6X MCUs 2020-07-29 20:12:24 +02:00
Kconfig.mcp23s17
Kconfig.mcux gpio: mcux: Convert convert to DT_INST defines 2020-04-23 17:07:41 -05:00
Kconfig.mcux_igpio
Kconfig.mcux_lpc
Kconfig.mmio32
Kconfig.npcx driver: gpio: add gpio driver support in NPCX series 2020-09-01 13:35:25 +02:00
Kconfig.nrfx
Kconfig.pca95xx
Kconfig.rv32m1
Kconfig.sam
Kconfig.sam0
Kconfig.sifive
Kconfig.stellaris
Kconfig.stm32
Kconfig.sx1509b
Kconfig.xec drivers: gpio: mchp_xec: Convert to using new device tree macros 2020-04-28 07:43:31 -05:00
Kconfig.xlnx drivers: gpio: add driver for the Xilinx AXI GPIO IP 2020-08-14 13:35:39 -05:00