summaryrefslogtreecommitdiff
path: root/src/device/oprom/yabel/debug.h
blob: d93fc6e4c10422cf4bf1a67ecf03a0c7a7596715 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/******************************************************************************
 * Copyright (c) 2004, 2008 IBM Corporation
 * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net>
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer
 *   in the documentation and/or other materials provided with the
 *   distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributors:
 *     IBM Corporation - initial implementation
 *****************************************************************************/
#ifndef _BIOSEMU_DEBUG_H_
#define _BIOSEMU_DEBUG_H_

#include <timer.h>
#include <types.h>

#if CONFIG(X86EMU_DEBUG_TIMINGS)
extern struct mono_time zero;
#endif
extern u32 debug_flags;
// from x86emu...needed for debugging
extern void x86emu_dump_xregs(void);

/* printf is not available in coreboot... use printk */
#include <console/console.h>
#include "x86emu/x86emu.h"
#define printf(x...) printk(BIOS_DEBUG, x)

/* PH: empty versions of set/clr_ci
 * TODO: remove! */
static inline void clr_ci(void) {};
static inline void set_ci(void) {};

/* debug_flags is a binary switch that allows you to select the following items
 * to debug. 1=on 0=off. After you decide what you want to debug create the
 * binary value, convert to hex and set the option. These options can be
 * selected in Kconfig.
 *
 * |-DEBUG_JMP - print info about JMP and RETF opcodes from x86emu
 * ||-DEBUG_TRACE_X86EMU - print _all_ opcodes that are executed by x86emu (WARNING: this will produce a LOT of output)
 * |||-Currently unused
 * ||||-Currently unused
 * |||||-Currently unused
 * ||||||-DEBUG_PNP - Print Plug And Play access made by option rom
 * |||||||-DEBUG_DISK - Print Disk I/O related messages, currently unused
 * ||||||||-DEBUG_PMM - Print messages related to POST Memory Manager (PMM)
 * |||||||||-DEBUG_VBE - Print messages related to VESA BIOS Extension (VBE) functions
 * ||||||||||-DEBUG_PRINT_INT10 - let INT10 (i.e. character output) calls print messages to Debug output
 * |||||||||||-DEBUG_INTR - Print messages related to interrupt handling
 * ||||||||||||-DEBUG_CHECK_VMEM_ACCESS - Print messages related to accesse to certain areas of the virtual Memory (e.g. BDA (BIOS Data Area) or Interrupt Vectors)
 * |||||||||||||-DEBUG_MEM - Print memory access made by option ROM (NOTE: this also includes accesses to fetch instructions)
 * ||||||||||||||-DEBUG_IO - Print I/O access made by option rom
 * 11000111111111 - Max Binary Value, Debug All (WARNING: - This could run for hours)
 */

#define DEBUG_IO 0x1
#define DEBUG_MEM 0x2
// set this to print messages for certain virtual memory accesses (Interrupt Vectors, ...)
#define DEBUG_CHECK_VMEM_ACCESS 0x4
#define DEBUG_INTR 0x8
#define DEBUG_PRINT_INT10 0x10	// set to have the INT10 routine print characters
#define DEBUG_VBE 0x20
#define DEBUG_PMM 0x40
#define DEBUG_DISK 0x80
#define DEBUG_PNP 0x100

#define DEBUG_TRACE_X86EMU 0x1000
// set to enable tracing of JMPs in x86emu
#define DEBUG_JMP 0x2000

#if CONFIG(X86EMU_DEBUG)

#define CHECK_DBG(_flag) if (debug_flags & _flag)

#define DEBUG_PRINTF(_x...) printf(_x);
// prints the CS:IP before the printout, NOTE: actually its CS:IP of the _next_ instruction
// to be executed, since the x86emu advances CS:IP _before_ actually executing an instruction

#if CONFIG(X86EMU_DEBUG_TIMINGS)
#define DEBUG_PRINTF_CS_IP(_x...) DEBUG_PRINTF("[%08lx]%x:%x ", (current_time_from(&zero)).microseconds, M.x86.R_CS, M.x86.R_IP); DEBUG_PRINTF(_x);
#else
#define DEBUG_PRINTF_CS_IP(_x...) DEBUG_PRINTF("%x:%x ", M.x86.R_CS, M.x86.R_IP); DEBUG_PRINTF(_x);
#endif

#define DEBUG_PRINTF_IO(_x...) CHECK_DBG(DEBUG_IO) { DEBUG_PRINTF_CS_IP(_x) }
#define DEBUG_PRINTF_MEM(_x...) CHECK_DBG(DEBUG_MEM) { DEBUG_PRINTF_CS_IP(_x) }
#define DEBUG_PRINTF_INTR(_x...) CHECK_DBG(DEBUG_INTR) { DEBUG_PRINTF_CS_IP(_x) }
#define DEBUG_PRINTF_VBE(_x...) CHECK_DBG(DEBUG_VBE) { DEBUG_PRINTF_CS_IP(_x) }
#define DEBUG_PRINTF_PMM(_x...) CHECK_DBG(DEBUG_PMM) { DEBUG_PRINTF_CS_IP(_x) }
#define DEBUG_PRINTF_DISK(_x...) CHECK_DBG(DEBUG_DISK) { DEBUG_PRINTF_CS_IP(_x) }
#define DEBUG_PRINTF_PNP(_x...) CHECK_DBG(DEBUG_PNP) { DEBUG_PRINTF_CS_IP(_x) }

#else

#define CHECK_DBG(_flag) if (0)

#define DEBUG_PRINTF(_x...)
#define DEBUG_PRINTF_CS_IP(_x...)

#define DEBUG_PRINTF_IO(_x...)
#define DEBUG_PRINTF_MEM(_x...)
#define DEBUG_PRINTF_INTR(_x...)
#define DEBUG_PRINTF_VBE(_x...)
#define DEBUG_PRINTF_PMM(_x...)
#define DEBUG_PRINTF_DISK(_x...)
#define DEBUG_PRINTF_PNP(_x...)

#endif				//DEBUG

void dump(u8 *addr, u32 len);

#endif