149 static struct drctl_unit *drctlp = &drctl_state;  variable
156 	drctlp->drc_inst = -1;  in _init()
157 	mutex_init(&drctlp->drc_lock, NULL, MUTEX_DRIVER, NULL);  in _init()
158 	cv_init(&drctlp->drc_busy_cv, NULL, CV_DRIVER, NULL);  in _init()
161 		mutex_destroy(&drctlp->drc_lock);  in _init()
174 	cv_destroy(&drctlp->drc_busy_cv);  in _fini()
175 	mutex_destroy(&drctlp->drc_lock);  in _fini()
198 	if (drctlp->drc_inst != -1) {  in drctl_do_attach()
202 	drctlp->drc_inst = ddi_get_instance(dip);  in drctl_do_attach()
205 	    drctlp->drc_inst, DDI_PSEUDO, 0);  in drctl_do_attach()
208 		drctlp->drc_inst = -1;  in drctl_do_attach()
212 	drctlp->drc_dip = dip;  in drctl_do_attach()
238 		drctlp->drc_inst = -1;  in drctl_detach()
461 	mutex_enter(&drctlp->drc_lock);  in drctl_config_init()
462 	if (drctlp->drc_busy != NULL) {  in drctl_config_init()
463 		mutex_exit(&drctlp->drc_lock);  in drctl_config_init()
473 	drctlp->drc_busy = (drctl_cookie_t)-1;  in drctl_config_init()
474 	mutex_exit(&drctlp->drc_lock);  in drctl_config_init()
488 			drctlp->drc_busy = NULL;  in drctl_config_init()
489 			cv_broadcast(&drctlp->drc_busy_cv);  in drctl_config_init()
491 			drctlp->drc_busy = ck;  in drctl_config_init()
492 			drctlp->drc_cmd = cmd;  in drctl_config_init()
493 			drctlp->drc_flags = flags;  in drctl_config_init()
510 		drctlp->drc_cmd = -1;  in drctl_config_init()
511 		drctlp->drc_flags = 0;  in drctl_config_init()
512 		drctlp->drc_busy = NULL;  in drctl_config_init()
513 		cv_broadcast(&drctlp->drc_busy_cv);  in drctl_config_init()
529 	mutex_enter(&drctlp->drc_lock);  in drctl_config_fini()
530 	if (drctlp->drc_busy != ck) {  in drctl_config_fini()
531 		mutex_exit(&drctlp->drc_lock);  in drctl_config_fini()
534 	mutex_exit(&drctlp->drc_lock);  in drctl_config_fini()
536 	flags = drctlp->drc_flags;  in drctl_config_fini()
541 	switch (drctlp->drc_cmd) {  in drctl_config_fini()
570 		    "drctl_config_fini: bad cmd %d\n", drctlp->drc_cmd);  in drctl_config_fini()
579 		drctlp->drc_cmd = -1;  in drctl_config_fini()
580 		drctlp->drc_flags = 0;  in drctl_config_fini()
581 		drctlp->drc_busy = NULL;  in drctl_config_fini()
582 		cv_broadcast(&drctlp->drc_busy_cv);  in drctl_config_fini()
707 	mutex_enter(&drctlp->drc_lock);  in drctl_block_conditional()
709 	if (!should_block && drctlp->drc_busy != NULL) {  in drctl_block_conditional()
710 		mutex_exit(&drctlp->drc_lock);  in drctl_block_conditional()
715 	while (drctlp->drc_busy != NULL)  in drctl_block_conditional()
716 		(void) cv_wait_sig(&drctlp->drc_busy_cv, &drctlp->drc_lock);  in drctl_block_conditional()
719 	drctlp->drc_busy = (drctl_cookie_t)-1;  in drctl_block_conditional()
720 	drctlp->drc_cmd = DRCTL_DRC_BLOCK;  in drctl_block_conditional()
721 	drctlp->drc_flags = 0;  in drctl_block_conditional()
722 	mutex_exit(&drctlp->drc_lock);  in drctl_block_conditional()
752 	mutex_enter(&drctlp->drc_lock);  in drctl_unblock()
753 	drctlp->drc_cmd = -1;  in drctl_unblock()
754 	drctlp->drc_flags = 0;  in drctl_unblock()
755 	drctlp->drc_busy = NULL;  in drctl_unblock()
756 	cv_broadcast(&drctlp->drc_busy_cv);  in drctl_unblock()
757 	mutex_exit(&drctlp->drc_lock);  in drctl_unblock()