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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */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 53bool54nvkm_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 else66 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 76long77nvkm_longopt(const char *optstr, const char *opt, long value)78{79 long result = value;80 int arglen;81 char *s;82 83 optstr = nvkm_stropt(optstr, opt, &arglen);84 if (optstr && (s = kstrndup(optstr, arglen, GFP_KERNEL))) {85 int ret = kstrtol(s, 0, &value);86 if (ret == 0)87 result = value;88 kfree(s);89 }90 91 return result;92}93 94int95nvkm_dbgopt(const char *optstr, const char *sub)96{97 int mode = 1, level = CONFIG_NOUVEAU_DEBUG_DEFAULT;98 99 while (optstr) {100 int len = strcspn(optstr, ",=");101 switch (optstr[len]) {102 case '=':103 if (strncasecmpz(optstr, sub, len))104 mode = 0;105 optstr++;106 break;107 default:108 if (mode) {109 if (!strncasecmpz(optstr, "fatal", len))110 level = NV_DBG_FATAL;111 else if (!strncasecmpz(optstr, "error", len))112 level = NV_DBG_ERROR;113 else if (!strncasecmpz(optstr, "warn", len))114 level = NV_DBG_WARN;115 else if (!strncasecmpz(optstr, "info", len))116 level = NV_DBG_INFO;117 else if (!strncasecmpz(optstr, "debug", len))118 level = NV_DBG_DEBUG;119 else if (!strncasecmpz(optstr, "trace", len))120 level = NV_DBG_TRACE;121 else if (!strncasecmpz(optstr, "paranoia", len))122 level = NV_DBG_PARANOIA;123 else if (!strncasecmpz(optstr, "spam", len))124 level = NV_DBG_SPAM;125 }126 127 if (optstr[len] != '\0') {128 optstr++;129 mode = 1;130 break;131 }132 133 return level;134 }135 optstr += len;136 }137 138 return level;139}140