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131 lines
4.0 KiB
C
131 lines
4.0 KiB
C
/* $NetBSD: printk.h,v 1.4 2014/08/06 13:52:33 riastradh Exp $ */
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/*-
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* Copyright (c) 2013 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Taylor R. Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUX_PRINTK_H_
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#define _LINUX_PRINTK_H_
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#include <sys/param.h>
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#include <sys/systm.h>
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#define printk printf
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#define vprintk vprintf
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#define printk_once printf
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#define pr_err printf /* XXX */
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#define pr_cont printf /* XXX */
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#define pr_info printf /* XXX */
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#define pr_info_once printf /* XXX */
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#define pr_warn_once printf /* XXX */
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#define KERN_DEBUG "drm kern debug: "
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#define KERN_INFO "drm kern info: "
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#define KERN_WARNING "drm kern warning: "
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#define KERN_ERR "drm kern error: "
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#define KERN_CRIT "drm kern crit: "
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#define KERN_CONT ""
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#define DUMP_PREFIX_NONE 0
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#define DUMP_PREFIX_OFFSET 1
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#define DUMP_PREFIX_ADDRESS 2
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static inline void
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hex_dump_to_buffer(const void *buf, size_t buf_size, int bytes_per_line,
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int bytes_per_group, char *output, size_t output_size, bool ascii __unused)
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{
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const uint8_t *bytes = buf;
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size_t i = 0, n;
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KASSERT(output_size >= 1);
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KASSERT((bytes_per_line == 16) || (bytes_per_line == 32));
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KASSERT(powerof2(bytes_per_group));
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KASSERT(0 < bytes_per_group);
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KASSERT(bytes_per_group <= 8);
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output[output_size - 1] = '\0';
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while (i < buf_size) {
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n = snprintf(output, output_size, "%02x", bytes[i++]);
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if (n >= output_size)
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break;
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output += n; output_size -= n;
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if ((i == buf_size) || (0 == (i % bytes_per_line)))
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n = snprintf(output, output_size, "\n");
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else if ((0 < i) && (0 == (i % bytes_per_group)))
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n = snprintf(output, output_size, " ");
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else
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n = 0;
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if (n >= output_size)
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break;
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output += n; output_size -= n;
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}
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}
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static inline void
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print_hex_dump(const char *level, const char *prefix, int prefix_type,
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int bytes_per_line, int bytes_per_group, const void *buf, size_t buf_size,
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bool ascii)
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{
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const uint8_t *bytes = buf;
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/* Two digits and one space/newline per byte, plus a null. */
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char line[32*3 + 1];
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KASSERT((bytes_per_line == 16) || (bytes_per_line == 32));
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KASSERT(powerof2(bytes_per_group));
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KASSERT(0 < bytes_per_group);
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KASSERT(bytes_per_group <= 8);
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while (0 < buf_size) {
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const size_t n = MIN(buf_size, 32);
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switch (prefix_type) {
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case DUMP_PREFIX_OFFSET:
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printf("%08zu: ", (bytes - (const uint8_t *)buf));
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break;
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case DUMP_PREFIX_ADDRESS:
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printf("%p: ", bytes);
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break;
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case DUMP_PREFIX_NONE:
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default:
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break;
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}
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hex_dump_to_buffer(bytes, n, bytes_per_line, bytes_per_group,
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line, sizeof(line), ascii);
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KASSERT(0 < strnlen(line, sizeof(line)));
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KASSERT(line[strnlen(line, sizeof(line)) - 1] == '\n');
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printf("%s", line);
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bytes += n;
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buf_size -= n;
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}
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}
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#endif /* _LINUX_PRINTK_H_ */
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