Subversion Repositories HelenOS

Rev

Rev 4345 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
1 jermar 3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1757 jermar 29
/** @addtogroup generic	
1702 cejka 30
 * @{
31
 */
32
 
1264 jermar 33
/**
1702 cejka 34
 * @file
1264 jermar 35
 * @brief	Miscellaneous functions.
36
 */
37
 
1 jermar 38
#include <func.h>
39
#include <print.h>
40
#include <cpu.h>
41
#include <arch/asm.h>
42
#include <arch.h>
607 palkovsky 43
#include <console/kconsole.h>
1 jermar 44
 
631 palkovsky 45
atomic_t haltstate = {0}; /**< Halt flag */
1 jermar 46
 
62 decky 47
 
48
/** Halt wrapper
49
 *
4346 svoboda 50
 * Set halt flag and halt the CPU.
62 decky 51
 *
52
 */
631 palkovsky 53
void halt()
1 jermar 54
{
631 palkovsky 55
#ifdef CONFIG_DEBUG
659 jermar 56
	bool rundebugger = false;
4346 svoboda 57
 
631 palkovsky 58
	if (!atomic_get(&haltstate)) {
59
		atomic_set(&haltstate, 1);
60
		rundebugger = true;
61
	}
62
#else
1100 palkovsky 63
	atomic_set(&haltstate, 1);
631 palkovsky 64
#endif
4346 svoboda 65
 
413 jermar 66
	interrupts_disable();
4337 svoboda 67
 
68
#if (defined(CONFIG_DEBUG)) && (defined(CONFIG_KCONSOLE))
4346 svoboda 69
	if ((rundebugger) && (kconsole_check_poll()))
70
		kconsole("panic", "\nLast resort kernel console ready.\n", false);
4337 svoboda 71
#endif
72
 
227 jermar 73
	if (CPU)
3149 svoboda 74
		printf("cpu%u: halted\n", CPU->id);
227 jermar 75
	else
76
		printf("cpu: halted\n");
4346 svoboda 77
 
1 jermar 78
	cpu_halt();
79
}
80
 
1780 jermar 81
/** Convert ascii representation to unative_t
582 palkovsky 82
 *
83
 * Supports 0x for hexa & 0 for octal notation.
84
 * Does not check for overflows, does not support negative numbers
85
 *
86
 * @param text Textual representation of number
87
 * @return Converted number or 0 if no valid number ofund 
88
 */
1780 jermar 89
unative_t atoi(const char *text)
582 palkovsky 90
{
91
	int base = 10;
1780 jermar 92
	unative_t result = 0;
582 palkovsky 93
 
94
	if (text[0] == '0' && text[1] == 'x') {
95
		base = 16;
96
		text += 2;
97
	} else if (text[0] == '0')
98
		base = 8;
99
 
100
	while (*text) {
603 palkovsky 101
		if (base != 16 && \
102
		    ((*text >= 'A' && *text <= 'F' )
103
		     || (*text >='a' && *text <='f')))
582 palkovsky 104
			break;
105
		if (base == 8 && *text >='8')
106
			break;
107
 
591 palkovsky 108
		if (*text >= '0' && *text <= '9') {
109
			result *= base;
582 palkovsky 110
			result += *text - '0';
591 palkovsky 111
		} else if (*text >= 'A' && *text <= 'F') {
112
			result *= base;
582 palkovsky 113
			result += *text - 'A' + 10;
603 palkovsky 114
		} else if (*text >= 'a' && *text <= 'f') {
115
			result *= base;
116
			result += *text - 'a' + 10;
591 palkovsky 117
		} else
582 palkovsky 118
			break;
119
		text++;
120
	}
121
 
122
	return result;
123
}
1702 cejka 124
 
2050 decky 125
 
126
void order(const uint64_t val, uint64_t *rv, char *suffix)
127
{
2184 decky 128
	if (val > 10000000000000000000ULL) {
129
		*rv = val / 1000000000000000000ULL;
130
		*suffix = 'Z';
131
	} else if (val > 1000000000000000000ULL) {
132
		*rv = val / 1000000000000000ULL;
2050 decky 133
		*suffix = 'E';
2184 decky 134
	} else if (val > 1000000000000000ULL) {
135
		*rv = val / 1000000000000ULL;
2050 decky 136
		*suffix = 'T';
2184 decky 137
	} else if (val > 1000000000000ULL) {
138
		*rv = val / 1000000000ULL;
2104 decky 139
		*suffix = 'G';
2184 decky 140
	} else if (val > 1000000000ULL) {
141
		*rv = val / 1000000ULL;
2050 decky 142
		*suffix = 'M';
2184 decky 143
	} else if (val > 1000000ULL) {
144
		*rv = val / 1000ULL;
2104 decky 145
		*suffix = 'k';
2050 decky 146
	} else {
147
		*rv = val;
148
		*suffix = ' ';
149
	}
150
}
151
 
1757 jermar 152
/** @}
1702 cejka 153
 */