| 1 | /* $NetBSD: printk.h,v 1.4 2014/08/06 13:52:33 riastradh Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2013 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Taylor R. Campbell. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #ifndef _LINUX_PRINTK_H_ |
| 33 | #define _LINUX_PRINTK_H_ |
| 34 | |
| 35 | #include <sys/param.h> |
| 36 | #include <sys/systm.h> |
| 37 | |
| 38 | #define printk printf |
| 39 | #define vprintk vprintf |
| 40 | #define printk_once printf |
| 41 | #define pr_err printf /* XXX */ |
| 42 | #define pr_cont printf /* XXX */ |
| 43 | #define pr_info printf /* XXX */ |
| 44 | #define pr_info_once printf /* XXX */ |
| 45 | #define pr_warn_once printf /* XXX */ |
| 46 | #define KERN_DEBUG "drm kern debug: " |
| 47 | #define KERN_INFO "drm kern info: " |
| 48 | #define KERN_WARNING "drm kern warning: " |
| 49 | #define KERN_ERR "drm kern error: " |
| 50 | #define KERN_CRIT "drm kern crit: " |
| 51 | #define KERN_CONT "" |
| 52 | |
| 53 | #define DUMP_PREFIX_NONE 0 |
| 54 | #define DUMP_PREFIX_OFFSET 1 |
| 55 | #define DUMP_PREFIX_ADDRESS 2 |
| 56 | |
| 57 | static inline void |
| 58 | hex_dump_to_buffer(const void *buf, size_t buf_size, int bytes_per_line, |
| 59 | int bytes_per_group, char *output, size_t output_size, bool ascii __unused) |
| 60 | { |
| 61 | const uint8_t *bytes = buf; |
| 62 | size_t i = 0, n; |
| 63 | |
| 64 | KASSERT(output_size >= 1); |
| 65 | KASSERT((bytes_per_line == 16) || (bytes_per_line == 32)); |
| 66 | KASSERT(powerof2(bytes_per_group)); |
| 67 | KASSERT(0 < bytes_per_group); |
| 68 | KASSERT(bytes_per_group <= 8); |
| 69 | |
| 70 | output[output_size - 1] = '\0'; |
| 71 | while (i < buf_size) { |
| 72 | n = snprintf(output, output_size, "%02x" , bytes[i++]); |
| 73 | if (n >= output_size) |
| 74 | break; |
| 75 | output += n; output_size -= n; |
| 76 | if ((i == buf_size) || (0 == (i % bytes_per_line))) |
| 77 | n = snprintf(output, output_size, "\n" ); |
| 78 | else if ((0 < i) && (0 == (i % bytes_per_group))) |
| 79 | n = snprintf(output, output_size, " " ); |
| 80 | else |
| 81 | n = 0; |
| 82 | if (n >= output_size) |
| 83 | break; |
| 84 | output += n; output_size -= n; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | static inline void |
| 89 | print_hex_dump(const char *level, const char *prefix, int prefix_type, |
| 90 | int bytes_per_line, int bytes_per_group, const void *buf, size_t buf_size, |
| 91 | bool ascii) |
| 92 | { |
| 93 | const uint8_t *bytes = buf; |
| 94 | /* Two digits and one space/newline per byte, plus a null. */ |
| 95 | char line[32*3 + 1]; |
| 96 | |
| 97 | KASSERT((bytes_per_line == 16) || (bytes_per_line == 32)); |
| 98 | KASSERT(powerof2(bytes_per_group)); |
| 99 | KASSERT(0 < bytes_per_group); |
| 100 | KASSERT(bytes_per_group <= 8); |
| 101 | |
| 102 | while (0 < buf_size) { |
| 103 | const size_t n = MIN(buf_size, 32); |
| 104 | |
| 105 | switch (prefix_type) { |
| 106 | case DUMP_PREFIX_OFFSET: |
| 107 | printf("%08zu: " , (bytes - (const uint8_t *)buf)); |
| 108 | break; |
| 109 | |
| 110 | case DUMP_PREFIX_ADDRESS: |
| 111 | printf("%p: " , bytes); |
| 112 | break; |
| 113 | |
| 114 | case DUMP_PREFIX_NONE: |
| 115 | default: |
| 116 | break; |
| 117 | } |
| 118 | |
| 119 | hex_dump_to_buffer(bytes, n, bytes_per_line, bytes_per_group, |
| 120 | line, sizeof(line), ascii); |
| 121 | KASSERT(0 < strnlen(line, sizeof(line))); |
| 122 | KASSERT(line[strnlen(line, sizeof(line)) - 1] == '\n'); |
| 123 | printf("%s" , line); |
| 124 | |
| 125 | bytes += n; |
| 126 | buf_size -= n; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | #endif /* _LINUX_PRINTK_H_ */ |
| 131 | |