1/*
  2 * Copyright (C) 2016 Red Hat
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 * Authors:
 23 * Rob Clark <robdclark@gmail.com>
 24 */
 25
 26#define DEBUG /* for pr_debug() */
 27
 28#include <stdarg.h>
 29#include <linux/seq_file.h>
 30#include <drm/drmP.h>
 31#include <drm/drm_print.h>
 32
 33void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf)
 34{
 35	seq_printf(p->arg, "%pV", vaf);
 36}
 37EXPORT_SYMBOL(__drm_printfn_seq_file);
 38
 39void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf)
 40{
 41	dev_info(p->arg, "[" DRM_NAME "] %pV", vaf);
 42}
 43EXPORT_SYMBOL(__drm_printfn_info);
 44
 45void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf)
 46{
 47	pr_debug("%s %pV", p->prefix, vaf);
 48}
 49EXPORT_SYMBOL(__drm_printfn_debug);
 50
 51/**
 52 * drm_printf - print to a &drm_printer stream
 53 * @p: the &drm_printer
 54 * @f: format string
 55 */
 56void drm_printf(struct drm_printer *p, const char *f, ...)
 57{
 58	va_list args;
 59
 60	va_start(args, f);
 61	drm_vprintf(p, f, &args);
 62	va_end(args);
 63}
 64EXPORT_SYMBOL(drm_printf);
 65
 66void drm_dev_printk(const struct device *dev, const char *level,
 67		    const char *format, ...)
 68{
 69	struct va_format vaf;
 70	va_list args;
 71
 72	va_start(args, format);
 73	vaf.fmt = format;
 74	vaf.va = &args;
 75
 76	if (dev)
 77		dev_printk(level, dev, "[" DRM_NAME ":%ps] %pV",
 78			   __builtin_return_address(0), &vaf);
 79	else
 80		printk("%s" "[" DRM_NAME ":%ps] %pV",
 81		       level, __builtin_return_address(0), &vaf);
 82
 83	va_end(args);
 84}
 85EXPORT_SYMBOL(drm_dev_printk);
 86
 87void drm_dev_dbg(const struct device *dev, unsigned int category,
 88		 const char *format, ...)
 89{
 90	struct va_format vaf;
 91	va_list args;
 92
 93	if (!(drm_debug & category))
 94		return;
 95
 96	va_start(args, format);
 97	vaf.fmt = format;
 98	vaf.va = &args;
 99
100	if (dev)
101		dev_printk(KERN_DEBUG, dev, "[" DRM_NAME ":%ps] %pV",
102			   __builtin_return_address(0), &vaf);
103	else
104		printk(KERN_DEBUG "[" DRM_NAME ":%ps] %pV",
105		       __builtin_return_address(0), &vaf);
106
107	va_end(args);
108}
109EXPORT_SYMBOL(drm_dev_dbg);
110
111void drm_dbg(unsigned int category, const char *format, ...)
112{
113	struct va_format vaf;
114	va_list args;
115
116	if (!(drm_debug & category))
117		return;
118
119	va_start(args, format);
120	vaf.fmt = format;
121	vaf.va = &args;
122
123	printk(KERN_DEBUG "[" DRM_NAME ":%ps] %pV",
124	       __builtin_return_address(0), &vaf);
125
126	va_end(args);
127}
128EXPORT_SYMBOL(drm_dbg);
129
130void drm_err(const char *format, ...)
131{
132	struct va_format vaf;
133	va_list args;
134
135	va_start(args, format);
136	vaf.fmt = format;
137	vaf.va = &args;
138
139	printk(KERN_ERR "[" DRM_NAME ":%ps] *ERROR* %pV",
140	       __builtin_return_address(0), &vaf);
141
142	va_end(args);
143}
144EXPORT_SYMBOL(drm_err);