1/*
2 * Copyright 2012 Red Hat Inc.
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: Ben Skeggs
23 */
24#include <core/option.h>
25#include <core/debug.h>
26
27const char *
28nvkm_stropt(const char *optstr, const char *opt, int *arglen)
29{
30	while (optstr && *optstr != '\0') {
31		int len = strcspn(optstr, ",=");
32		switch (optstr[len]) {
33		case '=':
34			if (!strncasecmpz(optstr, opt, len)) {
35				optstr += len + 1;
36				*arglen = strcspn(optstr, ",=");
37				return *arglen ? optstr : NULL;
38			}
39			optstr++;
40			break;
41		case ',':
42			optstr++;
43			break;
44		default:
45			break;
46		}
47		optstr += len;
48	}
49
50	return NULL;
51}
52
53bool
54nvkm_boolopt(const char *optstr, const char *opt, bool value)
55{
56	int arglen;
57
58	optstr = nvkm_stropt(optstr, opt, &arglen);
59	if (optstr) {
60		if (!strncasecmpz(optstr, "0", arglen) ||
61		    !strncasecmpz(optstr, "no", arglen) ||
62		    !strncasecmpz(optstr, "off", arglen) ||
63		    !strncasecmpz(optstr, "false", arglen))
64			value = false;
65		else
66		if (!strncasecmpz(optstr, "1", arglen) ||
67		    !strncasecmpz(optstr, "yes", arglen) ||
68		    !strncasecmpz(optstr, "on", arglen) ||
69		    !strncasecmpz(optstr, "true", arglen))
70			value = true;
71	}
72
73	return value;
74}
75
76int
77nvkm_dbgopt(const char *optstr, const char *sub)
78{
79	int mode = 1, level = CONFIG_NOUVEAU_DEBUG_DEFAULT;
80
81	while (optstr) {
82		int len = strcspn(optstr, ",=");
83		switch (optstr[len]) {
84		case '=':
85			if (strncasecmpz(optstr, sub, len))
86				mode = 0;
87			optstr++;
88			break;
89		default:
90			if (mode) {
91				if (!strncasecmpz(optstr, "fatal", len))
92					level = NV_DBG_FATAL;
93				else if (!strncasecmpz(optstr, "error", len))
94					level = NV_DBG_ERROR;
95				else if (!strncasecmpz(optstr, "warn", len))
96					level = NV_DBG_WARN;
97				else if (!strncasecmpz(optstr, "info", len))
98					level = NV_DBG_INFO_NORMAL;
99				else if (!strncasecmpz(optstr, "debug", len))
100					level = NV_DBG_DEBUG;
101				else if (!strncasecmpz(optstr, "trace", len))
102					level = NV_DBG_TRACE;
103				else if (!strncasecmpz(optstr, "paranoia", len))
104					level = NV_DBG_PARANOIA;
105				else if (!strncasecmpz(optstr, "spam", len))
106					level = NV_DBG_SPAM;
107			}
108
109			if (optstr[len] != '\0') {
110				optstr++;
111				mode = 1;
112				break;
113			}
114
115			return level;
116		}
117		optstr += len;
118	}
119
120	return level;
121}
122