1 
2 /*
3  * Copyright (c) 1998-2003 by The XFree86 Project, Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21  * OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Except as contained in this notice, the name of the copyright holder(s)
24  * and author(s) shall not be used in advertising or otherwise to promote
25  * the sale, use or other dealings in this Software without prior written
26  * authorization from the copyright holder(s) and author(s).
27  */
28 
29 /* Option handling things that ModuleSetup procs can use */
30 
31 #ifndef _XF86_OPT_H_
32 #define _XF86_OPT_H_
33 #include "xf86Optionstr.h"
34 
35 typedef struct {
36     double freq;
37     int units;
38 } OptFrequency;
39 
40 typedef union {
41     unsigned long num;
42     const char *str;
43     double realnum;
44     Bool bool;
45     OptFrequency freq;
46 } ValueUnion;
47 
48 typedef enum {
49     OPTV_NONE = 0,
50     OPTV_INTEGER,
51     OPTV_STRING,                /* a non-empty string */
52     OPTV_ANYSTR,                /* Any string, including an empty one */
53     OPTV_REAL,
54     OPTV_BOOLEAN,
55     OPTV_PERCENT,
56     OPTV_FREQ
57 } OptionValueType;
58 
59 typedef enum {
60     OPTUNITS_HZ = 1,
61     OPTUNITS_KHZ,
62     OPTUNITS_MHZ
63 } OptFreqUnits;
64 
65 typedef struct {
66     int token;
67     const char *name;
68     OptionValueType type;
69     ValueUnion value;
70     Bool found;
71 } OptionInfoRec, *OptionInfoPtr;
72 
73 extern _X_EXPORT int xf86SetIntOption(XF86OptionPtr optlist, const char *name,
74                                       int deflt);
75 extern _X_EXPORT double xf86SetRealOption(XF86OptionPtr optlist,
76                                           const char *name, double deflt);
77 extern _X_EXPORT char *xf86SetStrOption(XF86OptionPtr optlist, const char *name,
78                                         const char *deflt);
79 extern _X_EXPORT int xf86SetBoolOption(XF86OptionPtr list, const char *name,
80                                        int deflt);
81 extern _X_EXPORT double xf86SetPercentOption(XF86OptionPtr list,
82                                              const char *name, double deflt);
83 extern _X_EXPORT int xf86CheckIntOption(XF86OptionPtr optlist, const char *name,
84                                         int deflt);
85 extern _X_EXPORT double xf86CheckRealOption(XF86OptionPtr optlist,
86                                             const char *name, double deflt);
87 extern _X_EXPORT char *xf86CheckStrOption(XF86OptionPtr optlist,
88                                           const char *name, const char *deflt);
89 extern _X_EXPORT int xf86CheckBoolOption(XF86OptionPtr list, const char *name,
90                                          int deflt);
91 extern _X_EXPORT double xf86CheckPercentOption(XF86OptionPtr list,
92                                                const char *name, double deflt);
93 extern _X_EXPORT XF86OptionPtr xf86AddNewOption(XF86OptionPtr head,
94                                                 const char *name,
95                                                 const char *val);
96 extern _X_EXPORT XF86OptionPtr xf86NewOption(char *name, char *value);
97 extern _X_EXPORT XF86OptionPtr xf86NextOption(XF86OptionPtr list);
98 extern _X_EXPORT XF86OptionPtr xf86OptionListCreate(const char **options,
99                                                     int count, int used);
100 extern _X_EXPORT XF86OptionPtr xf86OptionListMerge(XF86OptionPtr head,
101                                                    XF86OptionPtr tail);
102 extern _X_EXPORT XF86OptionPtr xf86OptionListDuplicate(XF86OptionPtr list);
103 extern _X_EXPORT void xf86OptionListFree(XF86OptionPtr opt);
104 extern _X_EXPORT char *xf86OptionName(XF86OptionPtr opt);
105 extern _X_EXPORT char *xf86OptionValue(XF86OptionPtr opt);
106 extern _X_EXPORT void xf86OptionListReport(XF86OptionPtr parm);
107 extern _X_EXPORT XF86OptionPtr xf86FindOption(XF86OptionPtr options,
108                                               const char *name);
109 extern _X_EXPORT const char *xf86FindOptionValue(XF86OptionPtr options,
110                                                  const char *name);
111 extern _X_EXPORT void xf86MarkOptionUsed(XF86OptionPtr option);
112 extern _X_EXPORT void xf86MarkOptionUsedByName(XF86OptionPtr options,
113                                                const char *name);
114 extern _X_EXPORT Bool xf86CheckIfOptionUsed(XF86OptionPtr option);
115 extern _X_EXPORT Bool xf86CheckIfOptionUsedByName(XF86OptionPtr options,
116                                                   const char *name);
117 extern _X_EXPORT void xf86ShowUnusedOptions(int scrnIndex,
118                                             XF86OptionPtr options);
119 extern _X_EXPORT void xf86ProcessOptions(int scrnIndex, XF86OptionPtr options,
120                                          OptionInfoPtr optinfo);
121 extern _X_EXPORT OptionInfoPtr xf86TokenToOptinfo(const OptionInfoRec * table,
122                                                   int token);
123 extern _X_EXPORT const char *xf86TokenToOptName(const OptionInfoRec * table,
124                                                 int token);
125 extern _X_EXPORT Bool xf86IsOptionSet(const OptionInfoRec * table, int token);
126 extern _X_EXPORT const char *xf86GetOptValString(const OptionInfoRec * table,
127                                            int token);
128 extern _X_EXPORT Bool xf86GetOptValInteger(const OptionInfoRec * table,
129                                            int token, int *value);
130 extern _X_EXPORT Bool xf86GetOptValULong(const OptionInfoRec * table, int token,
131                                          unsigned long *value);
132 extern _X_EXPORT Bool xf86GetOptValReal(const OptionInfoRec * table, int token,
133                                         double *value);
134 extern _X_EXPORT Bool xf86GetOptValFreq(const OptionInfoRec * table, int token,
135                                         OptFreqUnits expectedUnits,
136                                         double *value);
137 extern _X_EXPORT Bool xf86GetOptValBool(const OptionInfoRec * table, int token,
138                                         Bool *value);
139 extern _X_EXPORT Bool xf86ReturnOptValBool(const OptionInfoRec * table,
140                                            int token, Bool def);
141 extern _X_EXPORT int xf86NameCmp(const char *s1, const char *s2);
142 extern _X_EXPORT char *xf86NormalizeName(const char *s);
143 extern _X_EXPORT XF86OptionPtr xf86ReplaceIntOption(XF86OptionPtr optlist,
144                                                     const char *name,
145                                                     const int val);
146 extern _X_EXPORT XF86OptionPtr xf86ReplaceRealOption(XF86OptionPtr optlist,
147                                                      const char *name,
148                                                      const double val);
149 extern _X_EXPORT XF86OptionPtr xf86ReplaceBoolOption(XF86OptionPtr optlist,
150                                                      const char *name,
151                                                      const Bool val);
152 extern _X_EXPORT XF86OptionPtr xf86ReplacePercentOption(XF86OptionPtr optlist,
153                                                         const char *name,
154                                                         const double val);
155 extern _X_EXPORT XF86OptionPtr xf86ReplaceStrOption(XF86OptionPtr optlist,
156                                                     const char *name,
157                                                     const char *val);
158 #endif
159