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xserver/hw/xfree86/common/xf86Option.c

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/*
* Copyright (c) 1998-2003 by The XFree86 Project, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of the copyright holder(s)
* and author(s) shall not be used in advertising or otherwise to promote
* the sale, use or other dealings in this Software without prior written
* authorization from the copyright holder(s) and author(s).
*/
/*
* Author: David Dawes <dawes@xfree86.org>
*
* This file includes public option handling functions.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <stdlib.h>
#include <ctype.h>
#include <X11/X.h>
#include "os.h"
#include "xf86.h"
#include "xf86Xinput.h"
#include "xf86Optrec.h"
static Bool ParseOptionValue(int scrnIndex, pointer options, OptionInfoPtr p,
Bool markUsed);
/*
* xf86CollectOptions collects the options from each of the config file
* sections used by the screen and puts the combined list in pScrn->options.
* This function requires that the following have been initialised:
*
* pScrn->confScreen
* pScrn->Entities[i]->device
* pScrn->display
* pScrn->monitor
*
* The extraOpts parameter may optionally contain a list of additional options
* to include.
*
* The order of precedence for options is:
*
* extraOpts, display, confScreen, monitor, device
*/
_X_EXPORT void
xf86CollectOptions(ScrnInfoPtr pScrn, pointer extraOpts)
{
XF86OptionPtr tmp;
XF86OptionPtr extras = (XF86OptionPtr)extraOpts;
GDevPtr device;
int i;
pScrn->options = NULL;
for (i=pScrn->numEntities - 1; i >= 0; i--) {
device = xf86GetDevFromEntity(pScrn->entityList[i],
pScrn->entityInstanceList[i]);
if (device && device->options) {
tmp = xf86optionListDup(device->options);
if (pScrn->options)
xf86optionListMerge(pScrn->options,tmp);
else
pScrn->options = tmp;
}
}
if (pScrn->monitor->options) {
tmp = xf86optionListDup(pScrn->monitor->options);
if (pScrn->options)
pScrn->options = xf86optionListMerge(pScrn->options, tmp);
else
pScrn->options = tmp;
}
if (pScrn->confScreen->options) {
tmp = xf86optionListDup(pScrn->confScreen->options);
if (pScrn->options)
pScrn->options = xf86optionListMerge(pScrn->options, tmp);
else
pScrn->options = tmp;
}
if (pScrn->display->options) {
tmp = xf86optionListDup(pScrn->display->options);
if (pScrn->options)
pScrn->options = xf86optionListMerge(pScrn->options, tmp);
else
pScrn->options = tmp;
}
if (extras) {
tmp = xf86optionListDup(extras);
if (pScrn->options)
pScrn->options = xf86optionListMerge(pScrn->options, tmp);
else
pScrn->options = tmp;
}
}
/*
* xf86CollectInputOptions collects the options for an InputDevice.
* This function requires that the following has been initialised:
*
* pInfo->conf_idev
*
* The extraOpts parameter may optionally contain a list of additional options
* to include.
*
* The order of precedence for options is:
*
* extraOpts, pInfo->conf_idev->extraOptions,
* pInfo->conf_idev->commonOptions, defaultOpts
*/
_X_EXPORT void
xf86CollectInputOptions(InputInfoPtr pInfo, const char **defaultOpts,
pointer extraOpts)
{
XF86OptionPtr tmp;
XF86OptionPtr extras = (XF86OptionPtr)extraOpts;
pInfo->options = NULL;
if (defaultOpts) {
pInfo->options = xf86OptionListCreate(defaultOpts, -1, 0);
}
if (pInfo->conf_idev->commonOptions) {
tmp = xf86optionListDup(pInfo->conf_idev->commonOptions);
if (pInfo->options)
pInfo->options = xf86optionListMerge(pInfo->options, tmp);
else
pInfo->options = tmp;
}
if (pInfo->conf_idev->extraOptions) {
tmp = xf86optionListDup(pInfo->conf_idev->extraOptions);
if (pInfo->options)
pInfo->options = xf86optionListMerge(pInfo->options, tmp);
else
pInfo->options = tmp;
}
if (extras) {
tmp = xf86optionListDup(extras);
if (pInfo->options)
pInfo->options = xf86optionListMerge(pInfo->options, tmp);
else
pInfo->options = tmp;
}
}
/* Created for new XInput stuff -- essentially extensions to the parser */
static int
LookupIntOption(pointer optlist, const char *name, int deflt, Bool markUsed)
{
OptionInfoRec o;
o.name = name;
o.type = OPTV_INTEGER;
if (ParseOptionValue(-1, optlist, &o, markUsed))
deflt = o.value.num;
return deflt;
}
static double
LookupRealOption(pointer optlist, const char *name, double deflt,
Bool markUsed)
{
OptionInfoRec o;
o.name = name;
o.type = OPTV_REAL;
if (ParseOptionValue(-1, optlist, &o, markUsed))
deflt = o.value.realnum;
return deflt;
}
static char *
LookupStrOption(pointer optlist, const char *name, char *deflt, Bool markUsed)
{
OptionInfoRec o;
o.name = name;
o.type = OPTV_STRING;
if (ParseOptionValue(-1, optlist, &o, markUsed))
deflt = o.value.str;
if (deflt)
return xstrdup(deflt);
else
return NULL;
}
static int
LookupBoolOption(pointer optlist, const char *name, int deflt, Bool markUsed)
{
OptionInfoRec o;
o.name = name;
o.type = OPTV_BOOLEAN;
if (ParseOptionValue(-1, optlist, &o, markUsed))
deflt = o.value.bool;
return deflt;
}
/* These xf86Set* functions are intended for use by non-screen specific code */
_X_EXPORT int
xf86SetIntOption(pointer optlist, const char *name, int deflt)
{
return LookupIntOption(optlist, name, deflt, TRUE);
}
_X_EXPORT double
xf86SetRealOption(pointer optlist, const char *name, double deflt)
{
return LookupRealOption(optlist, name, deflt, TRUE);
}
_X_EXPORT char *
xf86SetStrOption(pointer optlist, const char *name, char *deflt)
{
return LookupStrOption(optlist, name, deflt, TRUE);
}
_X_EXPORT int
xf86SetBoolOption(pointer optlist, const char *name, int deflt)
{
return LookupBoolOption(optlist, name, deflt, TRUE);
}
/*
* These are like the Set*Option functions, but they don't mark the options
* as used.
*/
_X_EXPORT int
xf86CheckIntOption(pointer optlist, const char *name, int deflt)
{
return LookupIntOption(optlist, name, deflt, FALSE);
}
_X_EXPORT double
xf86CheckRealOption(pointer optlist, const char *name, double deflt)
{
return LookupRealOption(optlist, name, deflt, FALSE);
}
_X_EXPORT char *
xf86CheckStrOption(pointer optlist, const char *name, char *deflt)
{
return LookupStrOption(optlist, name, deflt, FALSE);
}
_X_EXPORT int
xf86CheckBoolOption(pointer optlist, const char *name, int deflt)
{
return LookupBoolOption(optlist, name, deflt, FALSE);
}
/*
* addNewOption() has the required property of replacing the option value
* if the option is already present.
*/
_X_EXPORT pointer
xf86ReplaceIntOption(pointer optlist, const char *name, const int val)
{
char *tmp = xnfalloc(16);
sprintf(tmp,"%i",val);
return xf86AddNewOption(optlist,name,tmp);
}
_X_EXPORT pointer
xf86ReplaceRealOption(pointer optlist, const char *name, const double val)
{
char *tmp = xnfalloc(32);
snprintf(tmp,32,"%f",val);
return xf86AddNewOption(optlist,name,tmp);
}
_X_EXPORT pointer
xf86ReplaceBoolOption(pointer optlist, const char *name, const Bool val)
{
return xf86AddNewOption(optlist,name,val?"True":"False");
}
_X_EXPORT pointer
xf86ReplaceStrOption(pointer optlist, const char *name, const char* val)
{
return xf86AddNewOption(optlist,name,val);
}
_X_EXPORT pointer
xf86AddNewOption(pointer head, const char *name, const char *val)
{
/* XXX These should actually be allocated in the parser library. */
char *tmp = strdup(val);
char *tmp_name = strdup(name);
return xf86addNewOption(head, tmp_name, tmp);
}
_X_EXPORT pointer
xf86NewOption(char *name, char *value)
{
return xf86newOption(name, value);
}
_X_EXPORT pointer
xf86NextOption(pointer list)
{
return xf86nextOption(list);
}
_X_EXPORT pointer
xf86OptionListCreate(const char **options, int count, int used)
{
return xf86optionListCreate(options, count, used);
}
_X_EXPORT pointer
xf86OptionListMerge(pointer head, pointer tail)
{
return xf86optionListMerge(head, tail);
}
_X_EXPORT void
xf86OptionListFree(pointer opt)
{
xf86optionListFree(opt);
}
_X_EXPORT char *
xf86OptionName(pointer opt)
{
return xf86optionName(opt);
}
_X_EXPORT char *
xf86OptionValue(pointer opt)
{
return xf86optionValue(opt);
}
_X_EXPORT void
xf86OptionListReport(pointer parm)
{
XF86OptionPtr opts = parm;
while(opts) {
if (xf86optionValue(opts))
xf86ErrorFVerb(5, "\tOption \"%s\" \"%s\"\n",
xf86optionName(opts), xf86optionValue(opts));
else
xf86ErrorFVerb( 5, "\tOption \"%s\"\n", xf86optionName(opts));
opts = xf86nextOption(opts);
}
}
/* End of XInput-caused section */
_X_EXPORT pointer
xf86FindOption(pointer options, const char *name)
{
return xf86findOption(options, name);
}
_X_EXPORT char *
xf86FindOptionValue(pointer options, const char *name)
{
return xf86findOptionValue(options, name);
}
_X_EXPORT void
xf86MarkOptionUsed(pointer option)
{
if (option != NULL)
((XF86OptionPtr)option)->opt_used = TRUE;
}
_X_EXPORT void
xf86MarkOptionUsedByName(pointer options, const char *name)
{
XF86OptionPtr opt;
opt = xf86findOption(options, name);
if (opt != NULL)
opt->opt_used = TRUE;
}
_X_EXPORT Bool
xf86CheckIfOptionUsed(pointer option)
{
if (option != NULL)
return ((XF86OptionPtr)option)->opt_used;
else
return FALSE;
}
_X_EXPORT Bool
xf86CheckIfOptionUsedByName(pointer options, const char *name)
{
XF86OptionPtr opt;
opt = xf86findOption(options, name);
if (opt != NULL)
return opt->opt_used;
else
return FALSE;
}
_X_EXPORT void
xf86ShowUnusedOptions(int scrnIndex, pointer options)
{
XF86OptionPtr opt = options;
while (opt) {
if (opt->opt_name && !opt->opt_used) {
xf86DrvMsg(scrnIndex, X_WARNING, "Option \"%s\" is not used\n",
opt->opt_name);
}
opt = opt->list.next;
}
}
static Bool
GetBoolValue(OptionInfoPtr p, const char *s)
{
if (*s == '\0') {
p->value.bool = TRUE;
} else {
if (xf86NameCmp(s, "1") == 0)
p->value.bool = TRUE;
else if (xf86NameCmp(s, "on") == 0)
p->value.bool = TRUE;
else if (xf86NameCmp(s, "true") == 0)
p->value.bool = TRUE;
else if (xf86NameCmp(s, "yes") == 0)
p->value.bool = TRUE;
else if (xf86NameCmp(s, "0") == 0)
p->value.bool = FALSE;
else if (xf86NameCmp(s, "off") == 0)
p->value.bool = FALSE;
else if (xf86NameCmp(s, "false") == 0)
p->value.bool = FALSE;
else if (xf86NameCmp(s, "no") == 0)
p->value.bool = FALSE;
else
return FALSE;
}
return TRUE;
}
static Bool
ParseOptionValue(int scrnIndex, pointer options, OptionInfoPtr p,
Bool markUsed)
{
char *s, *end;
Bool wasUsed = FALSE;
if ((s = xf86findOptionValue(options, p->name)) != NULL) {
if (markUsed) {
wasUsed = xf86CheckIfOptionUsedByName(options, p->name);
xf86MarkOptionUsedByName(options, p->name);
}
switch (p->type) {
case OPTV_INTEGER:
if (*s == '\0') {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires an integer value\n",
p->name);
p->found = FALSE;
} else {
p->value.num = strtoul(s, &end, 0);
if (*end == '\0') {
p->found = TRUE;
} else {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires an integer value\n",
p->name);
p->found = FALSE;
}
}
break;
case OPTV_STRING:
if (*s == '\0') {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires an string value\n",
p->name);
p->found = FALSE;
} else {
p->value.str = s;
p->found = TRUE;
}
break;
case OPTV_ANYSTR:
p->value.str = s;
p->found = TRUE;
break;
case OPTV_REAL:
if (*s == '\0') {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a floating point value\n",
p->name);
p->found = FALSE;
} else {
p->value.realnum = strtod(s, &end);
if (*end == '\0') {
p->found = TRUE;
} else {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a floating point value\n",
p->name);
p->found = FALSE;
}
}
break;
case OPTV_BOOLEAN:
if (GetBoolValue(p, s)) {
p->found = TRUE;
} else {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a boolean value\n", p->name);
p->found = FALSE;
}
break;
case OPTV_FREQ:
if (*s == '\0') {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a frequency value\n",
p->name);
p->found = FALSE;
} else {
double freq = strtod(s, &end);
int units = 0;
if (end != s) {
p->found = TRUE;
if (!xf86NameCmp(end, "Hz"))
units = 1;
else if (!xf86NameCmp(end, "kHz") ||
!xf86NameCmp(end, "k"))
units = 1000;
else if (!xf86NameCmp(end, "MHz") ||
!xf86NameCmp(end, "M"))
units = 1000000;
else {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a frequency value\n",
p->name);
p->found = FALSE;
}
if (p->found)
freq *= (double)units;
} else {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a frequency value\n",
p->name);
p->found = FALSE;
}
if (p->found) {
p->value.freq.freq = freq;
p->value.freq.units = units;
}
}
break;
case OPTV_NONE:
/* Should never get here */
p->found = FALSE;
break;
}
if (p->found && markUsed) {
int verb = 2;
if (wasUsed)
verb = 4;
xf86DrvMsgVerb(scrnIndex, X_CONFIG, verb, "Option \"%s\"", p->name);
if (!(p->type == OPTV_BOOLEAN && *s == 0)) {
xf86ErrorFVerb(verb, " \"%s\"", s);
}
xf86ErrorFVerb(verb, "\n");
}
} else if (p->type == OPTV_BOOLEAN) {
/* Look for matches with options with or without a "No" prefix. */
char *n, *newn;
OptionInfoRec opt;
n = xf86NormalizeName(p->name);
if (!n) {
p->found = FALSE;
return FALSE;
}
if (strncmp(n, "no", 2) == 0) {
newn = n + 2;
} else {
xfree(n);
n = xalloc(strlen(p->name) + 2 + 1);
if (!n) {
p->found = FALSE;
return FALSE;
}
strcpy(n, "No");
strcat(n, p->name);
newn = n;
}
if ((s = xf86findOptionValue(options, newn)) != NULL) {
if (markUsed)
xf86MarkOptionUsedByName(options, newn);
if (GetBoolValue(&opt, s)) {
p->value.bool = !opt.value.bool;
p->found = TRUE;
} else {
xf86DrvMsg(scrnIndex, X_WARNING,
"Option \"%s\" requires a boolean value\n", newn);
p->found = FALSE;
}
} else {
p->found = FALSE;
}
if (p->found && markUsed) {
xf86DrvMsgVerb(scrnIndex, X_CONFIG, 2, "Option \"%s\"", newn);
if (*s != 0) {
xf86ErrorFVerb(2, " \"%s\"", s);
}
xf86ErrorFVerb(2, "\n");
}
xfree(n);
} else {
p->found = FALSE;
}
return p->found;
}
_X_EXPORT void
xf86ProcessOptions(int scrnIndex, pointer options, OptionInfoPtr optinfo)
{
OptionInfoPtr p;
for (p = optinfo; p->name != NULL; p++) {
ParseOptionValue(scrnIndex, options, p, TRUE);
}
}
_X_EXPORT OptionInfoPtr
xf86TokenToOptinfo(const OptionInfoRec *table, int token)
{
const OptionInfoRec *p, *match = NULL, *set = NULL;
if (!table) {
ErrorF("xf86TokenToOptinfo: table is NULL\n");
return NULL;
}
for (p = table; p->token >= 0; p++) {
if (p->token == token) {
match = p;
if (p->found)
set = p;
}
}
if (set)
return (OptionInfoPtr)set;
else if (match)
return (OptionInfoPtr)match;
else
return NULL;
}
_X_EXPORT const char *
xf86TokenToOptName(const OptionInfoRec *table, int token)
{
const OptionInfoRec *p;
p = xf86TokenToOptinfo(table, token);
return p->name;
}
_X_EXPORT Bool
xf86IsOptionSet(const OptionInfoRec *table, int token)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
return (p && p->found);
}
_X_EXPORT char *
xf86GetOptValString(const OptionInfoRec *table, int token)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found)
return p->value.str;
else
return NULL;
}
_X_EXPORT Bool
xf86GetOptValInteger(const OptionInfoRec *table, int token, int *value)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found) {
*value = p->value.num;
return TRUE;
} else
return FALSE;
}
_X_EXPORT Bool
xf86GetOptValULong(const OptionInfoRec *table, int token, unsigned long *value)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found) {
*value = p->value.num;
return TRUE;
} else
return FALSE;
}
_X_EXPORT Bool
xf86GetOptValReal(const OptionInfoRec *table, int token, double *value)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found) {
*value = p->value.realnum;
return TRUE;
} else
return FALSE;
}
_X_EXPORT Bool
xf86GetOptValFreq(const OptionInfoRec *table, int token,
OptFreqUnits expectedUnits, double *value)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found) {
if (p->value.freq.units > 0) {
/* Units give, so the scaling is known. */
switch (expectedUnits) {
case OPTUNITS_HZ:
*value = p->value.freq.freq;
break;
case OPTUNITS_KHZ:
*value = p->value.freq.freq / 1000.0;
break;
case OPTUNITS_MHZ:
*value = p->value.freq.freq / 1000000.0;
break;
}
} else {
/* No units given, so try to guess the scaling. */
switch (expectedUnits) {
case OPTUNITS_HZ:
*value = p->value.freq.freq;
break;
case OPTUNITS_KHZ:
if (p->value.freq.freq > 1000.0)
*value = p->value.freq.freq / 1000.0;
else
*value = p->value.freq.freq;
break;
case OPTUNITS_MHZ:
if (p->value.freq.freq > 1000000.0)
*value = p->value.freq.freq / 1000000.0;
else if (p->value.freq.freq > 1000.0)
*value = p->value.freq.freq / 1000.0;
else
*value = p->value.freq.freq;
}
}
return TRUE;
} else
return FALSE;
}
_X_EXPORT Bool
xf86GetOptValBool(const OptionInfoRec *table, int token, Bool *value)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found) {
*value = p->value.bool;
return TRUE;
} else
return FALSE;
}
_X_EXPORT Bool
xf86ReturnOptValBool(const OptionInfoRec *table, int token, Bool def)
{
OptionInfoPtr p;
p = xf86TokenToOptinfo(table, token);
if (p && p->found) {
return p->value.bool;
} else
return def;
}
_X_EXPORT int
xf86NameCmp(const char *s1, const char *s2)
{
return xf86nameCompare(s1, s2);
}
char *
xf86NormalizeName(const char *s)
{
char *ret, *q;
const char *p;
if (s == NULL)
return NULL;
ret = xalloc(strlen(s) + 1);
for (p = s, q = ret; *p != 0; p++) {
switch (*p) {
case '_':
case ' ':
case '\t':
continue;
default:
if (isupper(*p))
*q++ = tolower(*p);
else
*q++ = *p;
}
}
*q = '\0';
return ret;
}
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