66 /* A relationship between a power resource and a consumer. */
71     TAILQ_ENTRY(acpi_powerreference)	ar_clink; /* link on consumer */
98 static ACPI_STATUS	acpi_pwr_register_consumer(ACPI_HANDLE consumer);
100 static ACPI_STATUS	acpi_pwr_deregister_consumer(ACPI_HANDLE consumer);
114 			*acpi_pwr_find_consumer(ACPI_HANDLE consumer);
225  * Register a power consumer.  
227  * It's OK to call this if we already know about the consumer.
230 acpi_pwr_register_consumer(ACPI_HANDLE consumer)  in acpi_pwr_register_consumer()  argument
237     /* Check to see whether we know about this consumer already */  in acpi_pwr_register_consumer()
238     if (acpi_pwr_find_consumer(consumer) != NULL)  in acpi_pwr_register_consumer()
241     /* Allocate a new power consumer */  in acpi_pwr_register_consumer()
246     pc->ac_consumer = consumer;  in acpi_pwr_register_consumer()
251     ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "registered power consumer %s\n",  in acpi_pwr_register_consumer()
252 		     acpi_name(consumer)));  in acpi_pwr_register_consumer()
259  * Deregister a power consumer.
261  * This should only be done once the consumer has been powered off.
265 acpi_pwr_deregister_consumer(ACPI_HANDLE consumer)  in acpi_pwr_deregister_consumer()  argument
272     /* Find the consumer */  in acpi_pwr_deregister_consumer()
273     if ((pc = acpi_pwr_find_consumer(consumer)) == NULL)  in acpi_pwr_deregister_consumer()
276     /* Make sure the consumer's not referencing anything right now */  in acpi_pwr_deregister_consumer()
280     /* Pull the consumer off the list and free it */  in acpi_pwr_deregister_consumer()
284     ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "deregistered power consumer %s\n",  in acpi_pwr_deregister_consumer()
285 		     acpi_name(consumer)));  in acpi_pwr_deregister_consumer()
292  * Set a power consumer to a particular power state.
295 acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state)  in acpi_pwr_switch_consumer()  argument
306     /* It's never ok to switch a non-existent consumer. */  in acpi_pwr_switch_consumer()
307     if (consumer == NULL)  in acpi_pwr_switch_consumer()
313     /* Find the consumer */  in acpi_pwr_switch_consumer()
314     if ((pc = acpi_pwr_find_consumer(consumer)) == NULL) {  in acpi_pwr_switch_consumer()
315 	if (ACPI_FAILURE(status = acpi_pwr_register_consumer(consumer)))  in acpi_pwr_switch_consumer()
317 	if ((pc = acpi_pwr_find_consumer(consumer)) == NULL)  in acpi_pwr_switch_consumer()
318 	    panic("acpi added power consumer but can't find it");  in acpi_pwr_switch_consumer()
369 		     acpi_name(consumer), acpi_d_state_to_str(pc->ac_state),  in acpi_pwr_switch_consumer()
382     if (ACPI_FAILURE(AcpiGetHandle(consumer, method_name, &method_handle)))  in acpi_pwr_switch_consumer()
385 	ACPI_FAILURE(AcpiGetHandle(consumer, reslist_name, &reslist_handle)))  in acpi_pwr_switch_consumer()
406 	if (ACPI_FAILURE(AcpiGetHandle(consumer, "_PR0", &pr0_handle))) {  in acpi_pwr_switch_consumer()
418 		acpi_name(consumer), acpi_d_state_to_str(state)));  in acpi_pwr_switch_consumer()
482 			  acpi_name(consumer), acpi_d_state_to_str(state)));  in acpi_pwr_switch_consumer()
517 acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable)  in acpi_pwr_wake_enable()  argument
526     if (consumer == NULL)  in acpi_pwr_wake_enable()
530     if ((pc = acpi_pwr_find_consumer(consumer)) == NULL) {  in acpi_pwr_wake_enable()
531 	if (ACPI_FAILURE(status = acpi_pwr_register_consumer(consumer)))  in acpi_pwr_wake_enable()
533 	if ((pc = acpi_pwr_find_consumer(consumer)) == NULL)  in acpi_pwr_wake_enable()
534 	    panic("acpi wake added power consumer but can't find it");  in acpi_pwr_wake_enable()
538     if (acpi_parse_prw(consumer, &prw) != 0)  in acpi_pwr_wake_enable()
555  * Called to create a reference between a power consumer and a power resource
592     /* Create a reference between the consumer and resource */  in acpi_pwr_reference_resource()
595 			 "allocation failed for a power consumer reference\n"));  in acpi_pwr_reference_resource()
748  * Find a power consumer's control structure.
751 acpi_pwr_find_consumer(ACPI_HANDLE consumer)  in acpi_pwr_find_consumer()  argument
759 	if (pc->ac_consumer == consumer)  in acpi_pwr_find_consumer()