Some work in progress cut back to support R5 style device exploration.
Also includes the loader of R5 styled drivers (taken from dev.c). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10833 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
parent
321231a056
commit
a9435d9740
@ -16,6 +16,13 @@
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#include "device_manager_private.h"
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#include <KernelExport.h>
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#include <image.h>
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#include <elf.h>
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#include <kmodule.h>
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#include <fs/KPath.h>
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#include <util/Stack.h>
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#include <util/kernel_cpp.h>
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#include <devfs.h>
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#include <stdlib.h>
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#include <dirent.h>
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@ -31,12 +38,14 @@
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# define TRACE(x) ;
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#endif
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// ToDo: for now - it won't be necessary to do this later anymore
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#define pnp_boot_safe_realpath realpath
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#define pnp_boot_safe_lstat lstat
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#define pnp_boot_safe_opendir opendir
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#define pnp_boot_safe_readdir readdir
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#define pnp_boot_safe_closedir closedir
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struct path_entry {
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struct list_link link;
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char *path;
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dev_t device;
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ino_t node;
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};
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// list of driver registration directories
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const char *pnp_registration_dirs[2] = {
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@ -46,19 +55,164 @@ const char *pnp_registration_dirs[2] = {
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// list of module directories
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static const char *modules_dirs[2] = {
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static const char *kModulePaths[] = {
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COMMON_MODULES_DIR,
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SYSTEM_MODULES_DIR
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"/boot/beos/system/add-ons/kernel",//SYSTEM_MODULES_DIR,
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NULL
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};
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class DirectoryIterator {
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public:
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DirectoryIterator(const char *path, const char *subPath = NULL, bool recursive = false);
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DirectoryIterator(const char **paths, const char *subPath = NULL, bool recursive = false);
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~DirectoryIterator();
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void SetTo(const char *path, const char *subPath = NULL, bool recursive = false);
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void SetTo(const char **paths, const char *subPath = NULL, bool recursive = false);
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status_t GetNext(KPath &path, struct stat &stat);
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void Unset();
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void AddPath(const char *path, const char *subPath = NULL);
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private:
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Stack<KPath *> fPaths;
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bool fRecursive;
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DIR *fDirectory;
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KPath *fBasePath;
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};
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DirectoryIterator::DirectoryIterator(const char *path, const char *subPath, bool recursive)
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:
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fDirectory(NULL),
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fBasePath(NULL)
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{
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SetTo(path, subPath, recursive);
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}
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DirectoryIterator::DirectoryIterator(const char **paths, const char *subPath, bool recursive)
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:
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fDirectory(NULL),
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fBasePath(NULL)
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{
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SetTo(paths, subPath, recursive);
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}
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DirectoryIterator::~DirectoryIterator()
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{
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Unset();
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}
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void
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DirectoryIterator::SetTo(const char *path, const char *subPath, bool recursive)
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{
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Unset();
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fRecursive = recursive;
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AddPath(path, subPath);
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}
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void
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DirectoryIterator::SetTo(const char **paths, const char *subPath, bool recursive)
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{
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Unset();
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fRecursive = recursive;
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for (int32 i = 0; paths[i] != NULL; i++) {
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AddPath(paths[i], subPath);
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}
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}
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status_t
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DirectoryIterator::GetNext(KPath &path, struct stat &stat)
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{
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next_directory:
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while (fDirectory == NULL) {
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delete fBasePath;
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fBasePath = NULL;
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if (!fPaths.Pop(&fBasePath))
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return B_ENTRY_NOT_FOUND;
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fDirectory = opendir(fBasePath->Path());
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}
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next_entry:
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struct dirent *dirent = readdir(fDirectory);
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if (dirent == NULL) {
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// get over to next directory on the stack
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closedir(fDirectory);
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fDirectory = NULL;
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goto next_directory;
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}
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if (!strcmp(dirent->d_name, "..") || !strcmp(dirent->d_name, "."))
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goto next_entry;
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path.SetTo(fBasePath->Path());
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path.Append(dirent->d_name);
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if (::stat(path.Path(), &stat) != 0)
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goto next_entry;
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if (S_ISDIR(stat.st_mode) && fRecursive) {
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KPath *nextPath = new KPath(path);
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if (fPaths.Push(nextPath) != B_OK)
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return B_NO_MEMORY;
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goto next_entry;
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}
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return B_OK;
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}
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void
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DirectoryIterator::Unset()
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{
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if (fDirectory != NULL) {
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closedir(fDirectory);
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fDirectory = NULL;
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}
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delete fBasePath;
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fBasePath = NULL;
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KPath *path;
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while (fPaths.Pop(&path))
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delete path;
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}
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void
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DirectoryIterator::AddPath(const char *basePath, const char *subPath)
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{
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KPath *path = new KPath(basePath);
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if (subPath != NULL)
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path->Append(subPath);
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fPaths.Push(path);
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}
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// #pragma mark -
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/** notify a consumer that a device he might handle is added
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* consumer_name - file name (!) of consumer
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* fileName - file name of consumer
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* (moved to end of file to avoid inlining)
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*/
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static status_t
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notify_probe_by_file(device_node_info *node, const char *consumer_name)
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notify_probe_by_file(device_node_info *node, const char *fileName)
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{
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char *type;
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char *resolved_path;
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@ -67,14 +221,14 @@ notify_probe_by_file(device_node_info *node, const char *consumer_name)
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bool valid_module_name;
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status_t res;
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TRACE(("notify_probe_by_file(%s)\n", consumer_name));
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TRACE(("notify_probe_by_file(%s)\n", fileName));
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res = pnp_get_attr_string(node, PNP_DRIVER_TYPE, &type, false);
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if (res != B_OK)
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return res;
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// resolve link to actual driver file
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resolved_path = (char *)malloc(PATH_MAX + 1);
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resolved_path = (char *)malloc(B_PATH_NAME_LENGTH + 1);
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if (resolved_path == NULL) {
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res = B_NO_MEMORY;
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goto err;
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@ -85,7 +239,7 @@ notify_probe_by_file(device_node_info *node, const char *consumer_name)
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module_name = NULL;
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if (module_name == NULL) {
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// broken link or something
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dprintf("Cannot resolve driver file name: %s\n", consumer_name);
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dprintf("Cannot resolve driver file name: %s\n", fileName);
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res = errno;
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goto err2;
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}
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@ -95,10 +249,10 @@ notify_probe_by_file(device_node_info *node, const char *consumer_name)
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valid_module_name = false;
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for (i = 0; i < (disable_useraddons ? 1 : 2); ++i) {
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int len = strlen(modules_dirs[i]);
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int len = strlen(kModulePaths[i]);
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if (!strncmp(consumer_name, modules_dirs[i], len)
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&& !strncmp(module_name, modules_dirs[i], len)) {
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if (!strncmp(fileName, kModulePaths[i], len)
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&& !strncmp(module_name, kModulePaths[i], len)) {
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valid_module_name = true;
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module_name = module_name + len;
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break;
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@ -107,14 +261,14 @@ notify_probe_by_file(device_node_info *node, const char *consumer_name)
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if (!valid_module_name) {
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TRACE(("Module file %s of consumer %s is in wrong path\n",
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consumer_name, module_name));
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fileName, module_name));
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res = B_NAME_NOT_FOUND;
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goto err2;
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}
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// append driver type to get specific module name
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strlcat(module_name, "/", PATH_MAX);
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strlcat(module_name, type, PATH_MAX);
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strlcat(module_name, "/", B_PATH_NAME_LENGTH);
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strlcat(module_name, type, B_PATH_NAME_LENGTH);
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res = pnp_notify_probe_by_module(node, module_name);
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@ -148,8 +302,8 @@ compose_driver_names(device_node_info *node, const char *dir,
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if (term_array == NULL)
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return B_NO_MEMORY;
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strlcpy(path, dir, PATH_MAX);
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strlcat(path, "/", PATH_MAX);
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strlcpy(path, dir, B_PATH_NAME_LENGTH);
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strlcat(path, "/", B_PATH_NAME_LENGTH);
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TRACE(("compose_drive_names(%s)\n", path));
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@ -181,7 +335,7 @@ err:
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/** notify all drivers under <directory>. If <tell_all> is true, notify all,
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* if false, stop once a drivers notification function returned B_OK
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* buffer - scratch buffer of size PATH_MAX + 1 ; destroyed on exit
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* buffer - scratch buffer of size B_PATH_NAME_LENGTH + 1 ; destroyed on exit
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* return: B_NAME_NOT_FOUND, if tell_all is false and no driver returned B_OK
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*/
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@ -199,37 +353,37 @@ try_drivers(device_node_info *node, char *directory,
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// first try user drivers, then system drivers
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for (i = 0; i < (disable_useraddons ? 1 : 2); ++i) {
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strcpy(buffer, pnp_registration_dirs[i]);
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strlcat(buffer, directory, PATH_MAX);
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strlcat(buffer, directory, B_PATH_NAME_LENGTH);
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TRACE(("cur_dir: %s\n", buffer));
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dir_len = strlen(buffer);
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dir = pnp_boot_safe_opendir(buffer);
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dir = opendir(buffer);
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if (dir == NULL) {
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//SHOW_ERROR(3, "Directory %s doesn't exists", buffer);
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// directory doesn't exist
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return tell_all ? B_OK : B_NAME_NOT_FOUND;
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}
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while ((entry = pnp_boot_safe_readdir(dir)) != NULL) {
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while ((entry = readdir(dir)) != NULL) {
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buffer[dir_len] = 0;
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strlcat(buffer, "/", PATH_MAX);
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strlcat(buffer, entry->d_name, PATH_MAX);
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strlcat(buffer, "/", B_PATH_NAME_LENGTH);
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strlcat(buffer, entry->d_name, B_PATH_NAME_LENGTH);
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// skip default directory entries
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if (!strcmp( entry->d_name, ".")
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|| !strcmp( entry->d_name, ".."))
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continue;
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if (notify_probe_by_file( node, buffer) == B_OK && !tell_all) {
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if (notify_probe_by_file(node, buffer) == B_OK && !tell_all) {
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// tell_all is false, return on first hit
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pnp_boot_safe_closedir(dir);
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closedir(dir);
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return B_OK;
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}
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}
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pnp_boot_safe_closedir(dir);
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closedir(dir);
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}
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return tell_all ? B_OK : B_NAME_NOT_FOUND;
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@ -238,7 +392,7 @@ try_drivers(device_node_info *node, char *directory,
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/** find normal consumer of node that are stored under <dir>; first, we
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* look for a specific driver; if none could be found, find a generic
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* one path, buffer - used as scratch buffer (all of size PATH_MAX + 1)
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* one path, buffer - used as scratch buffer (all of size B_PATH_NAME_LENGTH + 1)
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* return: B_NAME_NOT_FOUND if no consumer could be found
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*/
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@ -271,11 +425,11 @@ find_normal_consumer(device_node_info *node, const char *dir,
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struct stat dummy;
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strcpy(buffer, pnp_registration_dirs[j]);
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strlcat(buffer, path, PATH_MAX);
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strlcat(buffer, path, B_PATH_NAME_LENGTH);
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// do a stat to avoid error message if Specific Driver
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// isn't provided
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if (pnp_boot_safe_lstat(buffer, &dummy) == 0) {
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if (lstat(buffer, &dummy) == 0) {
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res = notify_probe_by_file(node, buffer);
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if (res == B_OK)
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// got him!
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@ -297,8 +451,8 @@ find_normal_consumer(device_node_info *node, const char *dir,
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}
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// no specific consumer - go through generic driver
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strlcpy(path, dir, PATH_MAX);
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strlcat(path, GENERIC_SUBDIR, PATH_MAX);
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strlcpy(path, dir, B_PATH_NAME_LENGTH);
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strlcat(path, GENERIC_SUBDIR, B_PATH_NAME_LENGTH);
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if (try_drivers(node, path, false, buffer) != B_OK) {
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*found_normal_driver = false;
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@ -316,31 +470,29 @@ find_normal_consumer(device_node_info *node, const char *dir,
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* pattern - pattern of consumer name
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* buffer - buffer to store results in
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* (returned strings all point to <buffer>!)
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* dir - directory
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* filename_pattern - pattern of file name
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* *num_parts - number of split positions
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*/
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static status_t
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preprocess_consumer_names(const char *pattern, char *buffer,
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char **dir, char **filename_pattern, int *const num_parts)
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char **filename_pattern, int *const num_parts)
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{
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char *last_slash, *str, *dest;
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char *str, *dest;
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bool parts_began;
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// make a copy of pattern as we will strip escapes from directory part
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strlcpy(buffer, pattern, PATH_MAX);
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strlcpy(buffer, pattern, B_PATH_NAME_LENGTH);
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// find directory part and count splitpoints
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parts_began = false;
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last_slash = NULL;
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*num_parts = 1;
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for (str = buffer; *str; ++str) {
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switch (*str) {
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case '^':
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case '\\':
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// honour escaped characters, taking care of trailing escape
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if (*(str + 1))
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if (str[1])
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++str;
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break;
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@ -354,8 +506,8 @@ preprocess_consumer_names(const char *pattern, char *buffer,
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// find end of attribute name, taking care of escape sequences
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for (; *str != 0; ++str) {
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if (*str == '^') {
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if (*(str + 1) != 0)
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if (*str == '\\') {
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if (str[1] != 0)
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++str;
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} else if (*str == '%')
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break;
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@ -366,37 +518,23 @@ preprocess_consumer_names(const char *pattern, char *buffer,
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return B_BAD_VALUE;
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}
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break;
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case '/':
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// directory finishes at last "/" before first "|"
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if (!parts_began)
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last_slash = str;
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break;
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}
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}
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if (last_slash == 0) {
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dprintf("missing directory in consumer pattern %s\n", pattern);
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return B_BAD_VALUE;
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}
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// split into directory and filename pattern in place
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*dir = buffer;
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*last_slash = 0;
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*filename_pattern = last_slash + 1;
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*filename_pattern = buffer;
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// remove escape sequences from directory
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for (str = buffer, dest = buffer; *str; ++str) {
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if (*str == '^' && (str + 1) != 0)
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if (str[0] == '\\' && str[1] != 0)
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++str;
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*dest++ = *str;
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}
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*dest = 0;
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*dest = '\0';
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TRACE(("dir=%s, filename_pattern=%s, num_parts=%d\n",
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*dir, *filename_pattern, *num_parts));
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TRACE(("filename_pattern = %s, num_parts = %d\n",
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*filename_pattern, *num_parts));
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return B_OK;
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}
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@ -408,32 +546,35 @@ preprocess_consumer_names(const char *pattern, char *buffer,
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*/
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static status_t
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notify_dynamic_consumer(device_node_info *node, const char *pattern,
|
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bool *has_normal_driver)
|
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{
|
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status_t res;
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notify_dynamic_consumer(device_node_info *node, const char *bus,
|
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const char *pattern, bool *has_normal_driver)
|
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{
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status_t status;
|
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char *buffers;
|
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char *dir, *filename_pattern;
|
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char *filename_pattern;
|
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int num_parts;
|
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|
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TRACE(("notify_dynamic_consumer(pattern=%s, has_normal_driver=%d)\n",
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pattern, *has_normal_driver));
|
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TRACE(("notify_dynamic_consumer(bus = %s, pattern = %s, has_normal_driver = %d)\n",
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bus, pattern, *has_normal_driver));
|
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|
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if (pattern == NULL)
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return B_OK;
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|
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// we need three buffers - allocate them at once for simplicity
|
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buffers = (char *)malloc(3 * (PATH_MAX + 1));
|
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buffers = (char *)malloc(3 * (B_PATH_NAME_LENGTH + 1));
|
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if (buffers == NULL)
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return B_NO_MEMORY;
|
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|
||||
res = preprocess_consumer_names(pattern, buffers + 2 * (PATH_MAX + 1),
|
||||
&dir, &filename_pattern, &num_parts);
|
||||
if (res < B_OK)
|
||||
status = preprocess_consumer_names(pattern, buffers + 2 * (B_PATH_NAME_LENGTH + 1),
|
||||
&filename_pattern, &num_parts);
|
||||
if (status < B_OK)
|
||||
goto err;
|
||||
|
||||
if (!*has_normal_driver) {
|
||||
// find specific/generic consumer
|
||||
res = find_normal_consumer(node, dir, filename_pattern, num_parts,
|
||||
buffers, buffers + PATH_MAX + 1, has_normal_driver);
|
||||
if (res != B_OK && res != B_NAME_NOT_FOUND)
|
||||
status = find_normal_consumer(node, bus, filename_pattern, num_parts,
|
||||
buffers, buffers + B_PATH_NAME_LENGTH + 1, has_normal_driver);
|
||||
if (status != B_OK && status != B_NAME_NOT_FOUND)
|
||||
// only abort if there was a "real" problem;
|
||||
// if there is no specific/generic consumer, we don't bother
|
||||
// (having no driver is not funny but happens)
|
||||
@ -441,11 +582,11 @@ notify_dynamic_consumer(device_node_info *node, const char *pattern,
|
||||
}
|
||||
|
||||
// tell universal drivers
|
||||
strlcpy(buffers, dir, PATH_MAX);
|
||||
strlcat(buffers, UNIVERSAL_SUBDIR, PATH_MAX);
|
||||
strlcpy(buffers, bus, B_PATH_NAME_LENGTH);
|
||||
strlcat(buffers, UNIVERSAL_SUBDIR, B_PATH_NAME_LENGTH);
|
||||
|
||||
res = try_drivers(node, buffers, true, buffers + PATH_MAX + 1);
|
||||
if (res != B_OK && res != B_NAME_NOT_FOUND)
|
||||
status = try_drivers(node, buffers, true, buffers + B_PATH_NAME_LENGTH + 1);
|
||||
if (status != B_OK && status != B_NAME_NOT_FOUND)
|
||||
// again, only abort on real problems
|
||||
goto err;
|
||||
|
||||
@ -456,7 +597,176 @@ notify_dynamic_consumer(device_node_info *node, const char *pattern,
|
||||
|
||||
err:
|
||||
free(buffers);
|
||||
return res;
|
||||
return status;
|
||||
}
|
||||
|
||||
|
||||
static path_entry *
|
||||
find_node_ref_in_list(struct list *list, dev_t device, ino_t node)
|
||||
{
|
||||
path_entry *entry = NULL;
|
||||
|
||||
while ((entry = (path_entry *)list_get_next_item(list, entry)) != NULL) {
|
||||
if (entry->device == device
|
||||
&& entry->node == node)
|
||||
return entry;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
static image_id
|
||||
load_driver(const char *path)
|
||||
{
|
||||
status_t (*init_hardware)(void);
|
||||
status_t (*init_driver)(void);
|
||||
const char **devicePaths;
|
||||
int32 exported = 0;
|
||||
status_t status;
|
||||
|
||||
// load the module
|
||||
image_id image = load_kernel_add_on(path);
|
||||
if (image < 0)
|
||||
return image;
|
||||
|
||||
// for prettier debug output
|
||||
const char *name = strrchr(path, '/');
|
||||
if (name == NULL)
|
||||
name = path;
|
||||
else
|
||||
name++;
|
||||
|
||||
// For a valid device driver the following exports are required
|
||||
|
||||
device_hooks *(*find_device)(const char *);
|
||||
const char **(*publish_devices)(void);
|
||||
uint32 *api_version;
|
||||
if (get_image_symbol(image, "publish_devices", B_SYMBOL_TYPE_TEXT, (void **)&publish_devices) != B_OK
|
||||
|| get_image_symbol(image, "api_version", B_SYMBOL_TYPE_DATA, (void **)&api_version) != B_OK
|
||||
|| get_image_symbol(image, "find_device", B_SYMBOL_TYPE_TEXT, (void **)&find_device) != B_OK) {
|
||||
dprintf("%s: mandatory driver symbol(s) missing!\n", name);
|
||||
status = B_BAD_VALUE;
|
||||
goto error1;
|
||||
}
|
||||
|
||||
// test for init_hardware() and call it
|
||||
if (get_image_symbol(image, "init_hardware", B_SYMBOL_TYPE_TEXT,
|
||||
(void **)&init_hardware) == B_OK
|
||||
&& (status = init_hardware()) != B_OK) {
|
||||
dprintf("%s: init_hardware() failed: %s\n", name, strerror(status));
|
||||
status = ENXIO;
|
||||
goto error1;
|
||||
}
|
||||
|
||||
/* OK, so we now have what appears to be a valid module that has
|
||||
* completed init_hardware and thus thinks it should be used.
|
||||
* ToDo:
|
||||
* - this is bogus!
|
||||
* - the driver init routines should be called by devfs and
|
||||
* only when the driver is first needed. However, that level
|
||||
* level of support is not yet in devfs, so we have a hack
|
||||
* here that calls the init_driver function at this point.
|
||||
* As a result we will check to see if we actually manage to
|
||||
* publish the device, and if we do we will keep the module
|
||||
* loaded.
|
||||
* - remove this when devfs is fixed!
|
||||
*/
|
||||
if (get_image_symbol(image, "init_driver", B_SYMBOL_TYPE_TEXT,
|
||||
(void **)&init_driver) == B_OK
|
||||
&& (status = init_driver()) != B_OK) {
|
||||
dprintf("%s: init_driver() failed: %s\n", name, strerror(status));
|
||||
status = ENXIO;
|
||||
goto error2;
|
||||
}
|
||||
|
||||
// we keep the driver loaded if it exports at least a single interface
|
||||
devicePaths = publish_devices();
|
||||
if (devicePaths == NULL) {
|
||||
dprintf("%s: publish_devices() returned NULL.\n", name);
|
||||
status = ENXIO;
|
||||
goto error3;
|
||||
}
|
||||
|
||||
for (; devicePaths[0]; devicePaths++) {
|
||||
device_hooks *hooks = find_device(devicePaths[0]);
|
||||
|
||||
if (hooks && devfs_publish_device(devicePaths[0], NULL, hooks) == 0)
|
||||
exported++;
|
||||
}
|
||||
|
||||
// we're all done, driver will be kept loaded (for now, see above comment)
|
||||
if (exported > 0)
|
||||
return image;
|
||||
|
||||
status = B_ERROR; // whatever...
|
||||
|
||||
|
||||
error3:
|
||||
{
|
||||
status_t (*uninit_driver)(void);
|
||||
if (get_image_symbol(image, "uninit_driver", B_SYMBOL_TYPE_TEXT,
|
||||
(void **)&uninit_driver) == B_OK)
|
||||
uninit_driver();
|
||||
}
|
||||
|
||||
error2:
|
||||
{
|
||||
status_t (*uninit_hardware)(void);
|
||||
if (get_image_symbol(image, "uninit_hardware", B_SYMBOL_TYPE_TEXT,
|
||||
(void **)&uninit_hardware) == B_OK)
|
||||
uninit_hardware();
|
||||
}
|
||||
error1:
|
||||
/* If we've gotten here then the driver will be unloaded and an
|
||||
* error code returned.
|
||||
*/
|
||||
unload_kernel_add_on(image);
|
||||
return status;
|
||||
}
|
||||
|
||||
|
||||
/** This is no longer part of the public kernel API, so we just export the symbol */
|
||||
|
||||
status_t load_driver_symbols(const char *driverName);
|
||||
status_t
|
||||
load_driver_symbols(const char *driverName)
|
||||
{
|
||||
// This will be globally done for the whole kernel via the settings file.
|
||||
// We don't have to do anything here.
|
||||
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
static status_t
|
||||
try_drivers(struct list &list)
|
||||
{
|
||||
path_entry *entry;
|
||||
while ((entry = (path_entry *)list_remove_head_item(&list)) != NULL) {
|
||||
image_id image = load_kernel_add_on(entry->path);
|
||||
if (image >= 0) {
|
||||
// check if it's a driver module
|
||||
module_info **modules;
|
||||
if (load_module(entry->path, &modules) == B_OK) {
|
||||
// we have a module
|
||||
dprintf("loaded module %s\n", entry->path);
|
||||
} else {
|
||||
// it can still be a standard old-style driver
|
||||
if (load_driver(entry->path) == B_OK) {
|
||||
// we have a driver
|
||||
dprintf("loaded driver %s\n", entry->path);
|
||||
}
|
||||
}
|
||||
|
||||
unload_kernel_add_on(image);
|
||||
}
|
||||
|
||||
free(entry->path);
|
||||
free(entry);
|
||||
}
|
||||
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
@ -472,59 +782,70 @@ err:
|
||||
status_t
|
||||
pnp_notify_dynamic_consumers(device_node_info *node)
|
||||
{
|
||||
int i;
|
||||
#if 0
|
||||
char *buffer;
|
||||
status_t res;
|
||||
bool has_normal_driver = false;
|
||||
char *bus;
|
||||
status_t status = B_OK;
|
||||
int32 i, found = 0;
|
||||
|
||||
TRACE(("pnp_notify_dynamic_consumers()\n"));
|
||||
TRACE(("pnp_notify_dynamic_consumers(node = %p)\n", node));
|
||||
|
||||
buffer = (char *)malloc(PATH_MAX + 1);
|
||||
if (buffer == NULL)
|
||||
return B_NO_MEMORY;
|
||||
if (pnp_get_attr_string(node, PNP_DRIVER_CONSUMER_BUS, &bus, false) != B_OK)
|
||||
return B_OK;
|
||||
|
||||
//pnp_load_boot_links();
|
||||
TRACE((" Search bus: \"%s\"\n", bus));
|
||||
|
||||
buffer = (char *)malloc(B_PATH_NAME_LENGTH + 1);
|
||||
if (buffer == NULL) {
|
||||
status = B_NO_MEMORY;
|
||||
goto err;
|
||||
}
|
||||
|
||||
// first, append nothing, then "/0", "/1" etc.
|
||||
for (i = -1; ; ++i) {
|
||||
bool noSpecificDriver = false;
|
||||
char *consumer;
|
||||
|
||||
strcpy(buffer, PNP_DRIVER_DYNAMIC_CONSUMER);
|
||||
strcpy(buffer, PNP_DRIVER_CONSUMER_MAPPING);
|
||||
if (i >= 0)
|
||||
sprintf(buffer + strlen( buffer ), "/%d", i);
|
||||
sprintf(buffer + strlen( buffer ), "/%ld", i);
|
||||
|
||||
// if no more dynamic consumers, cancel loop silently
|
||||
if (pnp_get_attr_string(node, buffer, &consumer, false) != B_OK) {
|
||||
// starting with .../0 is OK, so ignore error if i=-1
|
||||
// starting with .../0 is OK, so ignore error if i = -1
|
||||
if (i == -1)
|
||||
continue;
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
TRACE(("Consumer pattern %d: %s\n", i, consumer));
|
||||
|
||||
res = notify_dynamic_consumer(node, consumer, &has_normal_driver);
|
||||
TRACE((" Consumer pattern %ld: %s\n", i, consumer));
|
||||
status = notify_dynamic_consumer(node, bus, consumer, &noSpecificDriver);
|
||||
|
||||
free(consumer);
|
||||
found++;
|
||||
|
||||
if (res != B_OK) {
|
||||
if (status != B_OK) {
|
||||
// this is only reached if a serious error occured,
|
||||
// see notify_dynamic_consumer()
|
||||
goto err;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (found == 0) {
|
||||
// no requirement for a special mapping, so we're just scanning the bus directory
|
||||
bool noSpecificDriver = false;
|
||||
status = notify_dynamic_consumer(node, bus, NULL, &noSpecificDriver);
|
||||
}
|
||||
|
||||
// supposed to go through
|
||||
free(buffer);
|
||||
//pnp_unload_boot_links();
|
||||
|
||||
return B_OK;
|
||||
|
||||
err:
|
||||
free(buffer);
|
||||
//pnp_unload_boot_links();
|
||||
|
||||
return res;
|
||||
free(bus);
|
||||
return status;
|
||||
#else
|
||||
return B_OK;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
@ -539,9 +860,9 @@ pnp_notify_fixed_consumers(device_node_info *node)
|
||||
int i;
|
||||
char *buffer;
|
||||
|
||||
TRACE(("pnp_notify_fixed_consumers()\n"));
|
||||
TRACE(("pnp_notify_fixed_consumers(node = %p)\n", node));
|
||||
|
||||
buffer = (char *)malloc(PATH_MAX + 1);
|
||||
buffer = (char *)malloc(B_PATH_NAME_LENGTH + 1);
|
||||
if (buffer == NULL)
|
||||
return B_NO_MEMORY;
|
||||
|
||||
@ -554,7 +875,7 @@ pnp_notify_fixed_consumers(device_node_info *node)
|
||||
sprintf(buffer + strlen(buffer), "/%d", i);
|
||||
|
||||
// if no more fixed consumers, cancel loop silently
|
||||
if (pnp_get_attr_string( node, buffer, &consumer, false) != B_OK)
|
||||
if (pnp_get_attr_string(node, buffer, &consumer, false) != B_OK)
|
||||
break;
|
||||
|
||||
TRACE(("Consumer %d: %s\n", i, consumer));
|
||||
@ -566,7 +887,6 @@ pnp_notify_fixed_consumers(device_node_info *node)
|
||||
// as they are obviously crucial (else they wouldn't be fixed)
|
||||
free(consumer);
|
||||
free(buffer);
|
||||
|
||||
return B_NAME_NOT_FOUND;
|
||||
}
|
||||
|
||||
@ -577,3 +897,78 @@ pnp_notify_fixed_consumers(device_node_info *node)
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
status_t
|
||||
probe_for_device_type(const char *type)
|
||||
{
|
||||
// search a node with an open connection of the specified type
|
||||
// or notify bus managers to get one
|
||||
|
||||
status_t status = B_OK;
|
||||
|
||||
// build list of potential drivers for that type
|
||||
|
||||
struct list drivers;
|
||||
list_init(&drivers);
|
||||
|
||||
char devType[64];
|
||||
snprintf(devType, sizeof(devType), "drivers/dev%s%s", type[0] ? "/" : "", type);
|
||||
|
||||
DirectoryIterator iterator(kModulePaths, devType, false);
|
||||
struct stat stat;
|
||||
KPath path;
|
||||
|
||||
while (iterator.GetNext(path, stat) == B_OK) {
|
||||
path_entry *entry = (path_entry *)malloc(sizeof(path_entry));
|
||||
if (entry == NULL)
|
||||
return B_NO_MEMORY;
|
||||
|
||||
entry->path = strdup(path.Path());
|
||||
if (entry->path == NULL) {
|
||||
free(entry);
|
||||
return B_NO_MEMORY;
|
||||
}
|
||||
|
||||
entry->device = stat.st_dev;
|
||||
entry->node = stat.st_ino;
|
||||
|
||||
dprintf("found potential driver: %s\n", path.Path());
|
||||
list_add_item(&drivers, entry);
|
||||
}
|
||||
|
||||
if (list_is_empty(&drivers))
|
||||
return B_OK;
|
||||
|
||||
// Iterate through bus managers to shrink the list (let them publish
|
||||
// their own devices)
|
||||
|
||||
iterator.SetTo(kModulePaths, "drivers/bus", false);
|
||||
|
||||
while (iterator.GetNext(path, stat) == B_OK) {
|
||||
DirectoryIterator busIterator(path.Path(), NULL, true);
|
||||
|
||||
struct list driversForBus;
|
||||
list_init(&driversForBus);
|
||||
|
||||
while (busIterator.GetNext(path, stat) == B_OK) {
|
||||
path_entry *entry = find_node_ref_in_list(&drivers, stat.st_dev, stat.st_ino);
|
||||
if (entry == NULL)
|
||||
continue;
|
||||
|
||||
// we found the driver here, so we should check it
|
||||
list_remove_link(&entry->link);
|
||||
list_add_item(&driversForBus, entry);
|
||||
dprintf("found driver for bus \"%s\": \"%s\"\n", path.Path(), entry->path);
|
||||
}
|
||||
|
||||
// ToDo: do something with the bus drivers... :)
|
||||
// ToDo: ask bus manager for driver (via mapping)
|
||||
// ToDo: find all nodes where this driver could be attached to
|
||||
try_drivers(driversForBus);
|
||||
}
|
||||
|
||||
// ToDo: do something with the remaining drivers... :)
|
||||
try_drivers(drivers);
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user