| }␊ |
| return NULL;␊ |
| }␊ |
| /** The folowing ACPI Table search algo. should be reused anywhere needed:*/␊ |
| ␊ |
| /** The following ACPI Table search algo, should be reused anywhere needed: */␊ |
| int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊ |
| {␊ |
| ␉int fd=0;␊ |
| ␉const char * overriden_pathname=NULL;␊ |
| ␉static char dirspec[512]="";␊ |
| ␉static bool first_time =true; ␊ |
| ␉int len=0;␊ |
| ␉char␉␉dirSpecDSDT[512] = "";␊ |
| ␉const char *override_pathname = NULL; // full path to a file.␊ |
| ␉int␉␉␉len = 0, fd = 0;␊ |
| ␉extern char gMacOSVersion;␊ |
| ␉␊ |
| ␉/// Take in accound user overriding if it's DSDT only␊ |
| ␉if (strstr(filename, "DSDT") && ␊ |
| ␉␉getValueForKey(kDSDT, &overriden_pathname, &len, ␊ |
| ␉␉␉␉␉ &bootInfo->bootConfig))␊ |
| {␊ |
| ␉␉sprintf(dirspec, "%s", overriden_pathname);␊ |
| ␉␉fd=open (dirspec,0);␊ |
| ␉␉if (fd>=0) goto success_fd;␊ |
| }␊ |
| ␉// Check that dirspec is not already assigned with a path␊ |
| ␉if (!first_time && *dirspec) ␊ |
| ␉{ // it is so start searching this cached patch first␊ |
| ␉␉//extract path␊ |
| ␉␉for (len=strlen(dirspec)-1; len; len--)␊ |
| ␉␉␉if (dirspec[len]=='/' || len==0)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉dirspec[len]='\0';␊ |
| ␉␉␉␉break;␊ |
| ␉␉␉}␊ |
| ␉␉// now concat with the filename␊ |
| ␉␉strncat(dirspec, "/", sizeof(dirspec));␊ |
| ␉␉strncat(dirspec, filename, sizeof(dirspec));␊ |
| ␉␉// and test to see if we don't have our big boy here:␊ |
| ␉␉fd=open (dirspec,0);␊ |
| ␉␉if (fd>=0) ␊ |
| ␉␉{␊ |
| ␉␉␉// printf("ACPI file search cache hit: file found at %s\n", dirspec);␊ |
| ␉␉␉goto success_fd;␊ |
| ␉␉}␊ |
| ␉// Take in account user overriding␊ |
| ␉if (getValueForKey(kDSDTKey, &override_pathname, &len, &bootInfo->bootConfig))␊ |
| ␉{␊ |
| ␉␉// Specify a path to a file, e.g. /Extra/test.aml␊ |
| ␉␉sprintf(dirSpecDSDT, override_pathname);␊ |
| ␉␉fd = open(dirSpecDSDT, 0);␊ |
| ␉␉if (fd >= 0) goto success_fd;␊ |
| ␉}␊ |
| ␉// Start searching any potential location for ACPI Table␊ |
| ␉// search the Extra folders first␊ |
| ␉sprintf(dirspec,"/Extra/%s",filename); ␊ |
| ␉fd=open (dirspec,0);␊ |
| ␉if (fd>=0) goto success_fd;␊ |
| ␉␊ |
| ␉sprintf(dirspec,"bt(0,0)/Extra/%s",filename);␊ |
| ␉fd=open (dirspec,0);␊ |
| ␉if (fd>=0) goto success_fd;␊ |
| ␉// Check rd's root.␊ |
| ␉sprintf(dirSpecDSDT, "rd(0,0)/%s", filename);␊ |
| ␉fd = open(dirSpecDSDT, 0);␊ |
| ␉if (fd >= 0) goto success_fd;␊ |
| ␉␊ |
| ␉sprintf(dirspec, "%s", filename); // search current dir␊ |
| ␉fd=open (dirspec,0);␊ |
| ␉if (fd>=0) goto success_fd;␊ |
| ␉// Check booter volume/rdbt for OS specific folders.␊ |
| ␉sprintf(dirSpecDSDT, "bt(0,0)/Extra/%s/%s", &gMacOSVersion, filename);␊ |
| ␉fd = open(dirSpecDSDT, 0);␊ |
| ␉if (fd >= 0) goto success_fd;␊ |
| ␉␊ |
| ␉sprintf(dirspec, "/%s", filename); // search root␊ |
| ␉fd=open (dirspec,0);␊ |
| ␉if (fd>=0) goto success_fd;␊ |
| ␉// Check booter volume/rdbt Extra.␊ |
| ␉sprintf(dirSpecDSDT, "bt(0,0)/Extra/%s", filename);␊ |
| ␉fd = open(dirSpecDSDT, 0);␊ |
| ␉if (fd >= 0) goto success_fd;␊ |
| ␉␊ |
| ␉//Azi: All loaded files stay in Extra.. please!? :)␊ |
| ␉//sprintf(dirspec, "/%s", filename); // search root␊ |
| ␉//fd=open (dirspec,0);␊ |
| ␉//if (fd>=0) goto success_fd;␊ |
| ␉␊ |
| ␉// NOT FOUND:␊ |
| ␉//Azi: a reminder - handling this only on pci_root.c, getPciRootUID() (it's enough to check if .aml file exists),␊ |
| ␉// to reduce number of printed messages and the confusion caused by them on users.␊ |
| ␉//verbose("ACPI Table not found: %s\n", filename);␊ |
| ␉␊ |
| ␉if (outDirspec) *outDirspec = "";␊ |
| ␉first_time = false;␊ |
| ␉return -1;␊ |
| ␉// FOUND␊ |
| success_fd:␊ |
| ␉first_time = false;␊ |
| ␉if (outDirspec) *outDirspec = dirspec; ␊ |
| ␉if (outDirspec) *outDirspec = dirSpecDSDT;␊ |
| ␉return fd;␊ |
| }␊ |
| ␊ |
