mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
4a1989c0bc
Now that linux/compat.h does not define these macros, we do not need to undefine them. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
121 lines
4 KiB
C
121 lines
4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
|
|
* Copyright (c) 2013 Google, Inc
|
|
*
|
|
* (C) Copyright 2012
|
|
* Pavel Herrmann <morpheus.ibis@gmail.com>
|
|
* Marek Vasut <marex@denx.de>
|
|
*/
|
|
|
|
#ifndef _DM_DEVICE_COMPAT_H
|
|
#define _DM_DEVICE_COMPAT_H
|
|
|
|
#include <log.h>
|
|
#include <linux/build_bug.h>
|
|
#include <linux/compat.h>
|
|
|
|
/*
|
|
* Define a new identifier which can be tested on by C code. A similar
|
|
* definition is made for DEBUG in <log.h>.
|
|
*/
|
|
#ifdef VERBOSE_DEBUG
|
|
#define _VERBOSE_DEBUG 1
|
|
#else
|
|
#define _VERBOSE_DEBUG 0
|
|
#endif
|
|
|
|
/**
|
|
* dev_printk_emit() - Emit a formatted log message
|
|
* @cat: Category of the message
|
|
* @level: Log level of the message
|
|
* @fmt: Format string
|
|
* @...: Arguments for @fmt
|
|
*
|
|
* This macro logs a message through the appropriate channel. It is a macro so
|
|
* the if statements can be optimized out (as @level should be a constant known
|
|
* at compile-time).
|
|
*
|
|
* If DEBUG or VERBOSE_DEBUG is defined, then some messages are always printed
|
|
* (through printf()). This is to match the historical behavior of the dev_xxx
|
|
* functions.
|
|
*
|
|
* If LOG is enabled, use log() to emit the message, otherwise print it based on
|
|
* the console loglevel.
|
|
*/
|
|
#define dev_printk_emit(cat, level, fmt, ...) \
|
|
({ \
|
|
if ((_DEBUG && level == LOGL_DEBUG) || \
|
|
(_VERBOSE_DEBUG && level == LOGL_DEBUG_CONTENT)) \
|
|
printf(fmt, ##__VA_ARGS__); \
|
|
else if (CONFIG_IS_ENABLED(LOG)) \
|
|
log(cat, level, fmt, ##__VA_ARGS__); \
|
|
else if (level < CONFIG_VAL(LOGLEVEL)) \
|
|
printf(fmt, ##__VA_ARGS__); \
|
|
})
|
|
|
|
/**
|
|
* __dev_printk() - Log a message for a device
|
|
* @level: Log level of the message
|
|
* @dev: A &struct udevice or &struct device
|
|
* @fmt: Format string
|
|
* @...: Arguments for @fmt
|
|
*
|
|
* This macro formats and prints dev_xxx log messages. It is done as a macro
|
|
* because working with variadic argument is much easier this way, we can
|
|
* interrogate the type of device we are passed (and whether it *is* a &struct
|
|
* udevice or &struct device), and dev_printk_emit() can optimize out unused if
|
|
* branches.
|
|
*
|
|
* Because this is a macro, we must enforce type checks ourselves. Ideally, we
|
|
* would only accept udevices, but there is a significant amount of code (mostly
|
|
* USB) which calls dev_xxx with &struct device. When assigning ``__dev``, we
|
|
* must first cast ``dev`` to ``void *`` so we don't get warned when ``dev`` is
|
|
* a &struct device. Even though the latter branch is not taken, it will still
|
|
* get compiled and type-checked.
|
|
*
|
|
* The format strings in case of a ``NULL`` ``dev`` MUST be kept the same.
|
|
* Otherwise, @fmt will be duplicated in the data section (with slightly
|
|
* different prefixes). This is why ``(NULL udevice *)`` is printed as two
|
|
* string arguments, and not by string pasting.
|
|
*/
|
|
#define __dev_printk(level, dev, fmt, ...) \
|
|
({ \
|
|
if (__same_type(dev, struct device *)) { \
|
|
dev_printk_emit(LOG_CATEGORY, level, fmt, ##__VA_ARGS__); \
|
|
} else { \
|
|
BUILD_BUG_ON(!__same_type(dev, struct udevice *)); \
|
|
struct udevice *__dev = (void *)dev; \
|
|
if (__dev) \
|
|
dev_printk_emit(__dev->driver->id, level, \
|
|
"%s %s: " fmt, \
|
|
__dev->driver->name, __dev->name, \
|
|
##__VA_ARGS__); \
|
|
else \
|
|
dev_printk_emit(LOG_CATEGORY, level, \
|
|
"%s %s: " fmt, \
|
|
"(NULL", "udevice *)", \
|
|
##__VA_ARGS__); \
|
|
} \
|
|
})
|
|
|
|
#define dev_emerg(dev, fmt, ...) \
|
|
__dev_printk(LOGL_EMERG, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_alert(dev, fmt, ...) \
|
|
__dev_printk(LOGL_ALERT, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_crit(dev, fmt, ...) \
|
|
__dev_printk(LOGL_CRIT, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_err(dev, fmt, ...) \
|
|
__dev_printk(LOGL_ERR, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_warn(dev, fmt, ...) \
|
|
__dev_printk(LOGL_WARNING, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_notice(dev, fmt, ...) \
|
|
__dev_printk(LOGL_NOTICE, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_info(dev, fmt, ...) \
|
|
__dev_printk(LOGL_INFO, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_dbg(dev, fmt, ...) \
|
|
__dev_printk(LOGL_DEBUG, dev, fmt, ##__VA_ARGS__)
|
|
#define dev_vdbg(dev, fmt, ...) \
|
|
__dev_printk(LOGL_DEBUG_CONTENT, dev, fmt, ##__VA_ARGS__)
|
|
|
|
#endif
|