libroot/os/driver_settings.cpp

6 /*!	\brief Implements the driver settings API
9 		Buffers a list of settings files to move over to the kernel - the
13 		Maintains a list of settings so that no disk access is required
14 		for known settings (such as those passed over from the boot
85 	struct		driver_settings settings;
99 static mutex sLock = MUTEX_INITIALIZER("driver settings");
143 	for (i = handle->settings.parameter_count; i-- > 0;) {
144 		if (!strcmp(handle->settings.parameters[i].name, name))
145 			return &handle->settings.parameters[i];
369 	memset(&handle->settings, 0, sizeof(struct driver_settings));
371 	// empty settings are allowed
375 	return parse_parameters(&handle->settings.parameters,
376 		&handle->settings.parameter_count, &text, 0);
396 	for (i = handle->settings.parameter_count; i-- > 0;)
397 		free_parameter(&handle->settings.parameters[i]);
399 	free(handle->settings.parameters);
439 	// We will keep this buffer in memory, until the settings
634 	struct driver_settings_file *settings = args->driver_settings;
636 	// Move the preloaded driver settings over to the kernel
640 	while (settings != NULL) {
646 		if (settings->size != 0) {
647 			handle->text = (char*)malloc(settings->size + 1);
653 			memcpy(handle->text, settings->buffer, settings->size);
654 			handle->text[settings->size] = '\0';
659 		strlcpy(handle->name, settings->name, sizeof(handle->name));
660 		handle->settings.parameters = NULL;
661 		handle->settings.parameter_count = 0;
663 			// this triggers parsing the settings when they are actually used
666 			// These settings cannot be reloaded, so we better don't throw
674 		settings = settings->next;
722 	// see if we already have these settings loaded
738 				// no valid settings, let's cut down its memory requirements
748 	// we are allowed to call the driver settings pretty early in the boot process
755 	// see if we already have these settings loaded
757 		struct driver_settings_file *settings = gKernelArgs.driver_settings;
758 		while (settings != NULL) {
759 			if (!strcmp(settings->name, driverName)) {
762 				char *text = (char*)malloc(settings->size + 1);
766 				memcpy(text, settings->buffer, settings->size + 1);
772 			settings = settings->next;
777 	// open the settings from the standardized location
849 	This function prints out a driver settings structure to a human
856 	If the "handle" parameter is not a valid driver settings handle, or
870 	for (i = 0; i < handle->settings.parameter_count; i++) {
871 		put_parameter(&buffer, &bufferSize, &handle->settings.parameters[i],
957 	return &((settings_handle *)handle)->settings;