29 void func(const struct fw_card *card, const char *fmt, ...)	\
38 	       dev_name(card->device), &vaf);			\
91 static void generate_config_rom(struct fw_card *card, __be32 *config_rom)  in generate_config_rom()  argument
109 		BIB_LINK_SPEED(card->link_speed) |  in generate_config_rom()
110 		BIB_GENERATION(card->config_rom_generation++ % 14 + 2) |  in generate_config_rom()
112 		BIB_MAX_RECEIVE(card->max_receive) |  in generate_config_rom()
114 	config_rom[3] = cpu_to_be32(card->guid >> 32);  in generate_config_rom()
115 	config_rom[4] = cpu_to_be32(card->guid);  in generate_config_rom()
153 	struct fw_card *card;  in update_config_roms()  local
155 	list_for_each_entry (card, &card_list, link) {  in update_config_roms()
156 		generate_config_rom(card, tmp_config_rom);  in update_config_roms()
157 		card->driver->set_config_rom(card, tmp_config_rom,  in update_config_roms()
213 static int reset_bus(struct fw_card *card, bool short_reset)  in reset_bus()  argument
218 	trace_bus_reset_initiate(card->index, card->generation, short_reset);  in reset_bus()
220 	return card->driver->update_phy_reg(card, reg, 0, bit);  in reset_bus()
223 void fw_schedule_bus_reset(struct fw_card *card, bool delayed, bool short_reset)  in fw_schedule_bus_reset()  argument
225 	trace_bus_reset_schedule(card->index, card->generation, short_reset);  in fw_schedule_bus_reset()
228 	card->br_short = short_reset;  in fw_schedule_bus_reset()
231 	fw_card_get(card);  in fw_schedule_bus_reset()
232 	if (!queue_delayed_work(fw_workqueue, &card->br_work,  in fw_schedule_bus_reset()
234 		fw_card_put(card);  in fw_schedule_bus_reset()
240 	struct fw_card *card = container_of(work, struct fw_card, br_work.work);  in br_work()  local
243 	if (card->reset_jiffies != 0 &&  in br_work()
244 	    time_before64(get_jiffies_64(), card->reset_jiffies + 2 * HZ)) {  in br_work()
245 		trace_bus_reset_postpone(card->index, card->generation, card->br_short);  in br_work()
247 		if (!queue_delayed_work(fw_workqueue, &card->br_work, 2 * HZ))  in br_work()
248 			fw_card_put(card);  in br_work()
252 	fw_send_phy_config(card, FW_PHY_CONFIG_NO_NODE_ID, card->generation,  in br_work()
254 	reset_bus(card, card->br_short);  in br_work()
255 	fw_card_put(card);  in br_work()
258 static void allocate_broadcast_channel(struct fw_card *card, int generation)  in allocate_broadcast_channel()  argument
262 	if (!card->broadcast_channel_allocated) {  in allocate_broadcast_channel()
263 		fw_iso_resource_manage(card, generation, 1ULL << 31,  in allocate_broadcast_channel()
266 			fw_notice(card, "failed to allocate broadcast channel\n");  in allocate_broadcast_channel()
269 		card->broadcast_channel_allocated = true;  in allocate_broadcast_channel()
272 	device_for_each_child(card->device, (void *)(long)generation,  in allocate_broadcast_channel()
280 void fw_schedule_bm_work(struct fw_card *card, unsigned long delay)  in fw_schedule_bm_work()  argument
282 	fw_card_get(card);  in fw_schedule_bm_work()
283 	if (!schedule_delayed_work(&card->bm_work, delay))  in fw_schedule_bm_work()
284 		fw_card_put(card);  in fw_schedule_bm_work()
289 	struct fw_card *card = container_of(work, struct fw_card, bm_work.work);  in bm_work()  local
301 	spin_lock_irq(&card->lock);  in bm_work()
303 	if (card->local_node == NULL) {  in bm_work()
304 		spin_unlock_irq(&card->lock);  in bm_work()
308 	generation = card->generation;  in bm_work()
310 	root_node = card->root_node;  in bm_work()
317 	irm_device = card->irm_node->data;  in bm_work()
326 	irm_id   = card->irm_node->node_id;  in bm_work()
327 	local_id = card->local_node->node_id;  in bm_work()
330 			     card->reset_jiffies + DIV_ROUND_UP(HZ, 8));  in bm_work()
332 	if ((is_next_generation(generation, card->bm_generation) &&  in bm_work()
333 	     !card->bm_abdicate) ||  in bm_work()
334 	    (card->bm_generation != generation && grace)) {  in bm_work()
347 		if (!card->irm_node->link_on) {  in bm_work()
349 			fw_notice(card, "%s, making local node (%02x) root\n",  in bm_work()
356 			fw_notice(card, "%s, making local node (%02x) root\n",  in bm_work()
364 		spin_unlock_irq(&card->lock);  in bm_work()
366 		rcode = fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP,  in bm_work()
377 		scoped_guard(spinlock_irq, &card->lock) {  in bm_work()
378 			if (rcode == RCODE_COMPLETE && generation == card->generation)  in bm_work()
379 				card->bm_node_id =  in bm_work()
386 				allocate_broadcast_channel(card, generation);  in bm_work()
397 			fw_schedule_bm_work(card, DIV_ROUND_UP(HZ, 8));  in bm_work()
401 		spin_lock_irq(&card->lock);  in bm_work()
411 			fw_notice(card, "BM lock failed (%s), making local node (%02x) root\n",  in bm_work()
415 	} else if (card->bm_generation != generation) {  in bm_work()
420 		spin_unlock_irq(&card->lock);  in bm_work()
421 		fw_schedule_bm_work(card, DIV_ROUND_UP(HZ, 8));  in bm_work()
430 	card->bm_generation = generation;  in bm_work()
432 	if (card->gap_count == 0) {  in bm_work()
447 		card->bm_retries = 0;  in bm_work()
459 		spin_unlock_irq(&card->lock);  in bm_work()
481 	if (!card->beta_repeaters_present &&  in bm_work()
493 	if (card->bm_retries++ < 5 &&  in bm_work()
494 	    (card->gap_count != gap_count || new_root_id != root_id))  in bm_work()
497 	spin_unlock_irq(&card->lock);  in bm_work()
500 		fw_notice(card, "phy config: new root=%x, gap_count=%d\n",  in bm_work()
502 		fw_send_phy_config(card, new_root_id, generation, gap_count);  in bm_work()
515 		reset_bus(card, card->gap_count != 0);  in bm_work()
525 		rcode = fw_run_transaction(card, TCODE_WRITE_QUADLET_REQUEST,  in bm_work()
534 		allocate_broadcast_channel(card, generation);  in bm_work()
539 	fw_card_put(card);  in bm_work()
542 void fw_card_initialize(struct fw_card *card,  in fw_card_initialize()  argument
548 	card->index = atomic_inc_return(&index);  in fw_card_initialize()
549 	card->driver = driver;  in fw_card_initialize()
550 	card->device = device;  in fw_card_initialize()
551 	card->current_tlabel = 0;  in fw_card_initialize()
552 	card->tlabel_mask = 0;  in fw_card_initialize()
553 	card->split_timeout_hi = DEFAULT_SPLIT_TIMEOUT / 8000;  in fw_card_initialize()
554 	card->split_timeout_lo = (DEFAULT_SPLIT_TIMEOUT % 8000) << 19;  in fw_card_initialize()
555 	card->split_timeout_cycles = DEFAULT_SPLIT_TIMEOUT;  in fw_card_initialize()
556 	card->split_timeout_jiffies =  in fw_card_initialize()
558 	card->color = 0;  in fw_card_initialize()
559 	card->broadcast_channel = BROADCAST_CHANNEL_INITIAL;  in fw_card_initialize()
561 	kref_init(&card->kref);  in fw_card_initialize()
562 	init_completion(&card->done);  in fw_card_initialize()
563 	INIT_LIST_HEAD(&card->transaction_list);  in fw_card_initialize()
564 	INIT_LIST_HEAD(&card->phy_receiver_list);  in fw_card_initialize()
565 	spin_lock_init(&card->lock);  in fw_card_initialize()
567 	card->local_node = NULL;  in fw_card_initialize()
569 	INIT_DELAYED_WORK(&card->br_work, br_work);  in fw_card_initialize()
570 	INIT_DELAYED_WORK(&card->bm_work, bm_work);  in fw_card_initialize()
574 int fw_card_add(struct fw_card *card, u32 max_receive, u32 link_speed, u64 guid,  in fw_card_add()  argument
592 	isoc_wq = alloc_workqueue("firewire-isoc-card%u",  in fw_card_add()
594 				  supported_isoc_contexts, card->index);  in fw_card_add()
598 	card->max_receive = max_receive;  in fw_card_add()
599 	card->link_speed = link_speed;  in fw_card_add()
600 	card->guid = guid;  in fw_card_add()
604 	generate_config_rom(card, tmp_config_rom);  in fw_card_add()
605 	ret = card->driver->enable(card, tmp_config_rom, config_rom_length);  in fw_card_add()
611 	card->isoc_wq = isoc_wq;  in fw_card_add()
612 	list_add_tail(&card->link, &card_list);  in fw_card_add()
619  * The next few functions implement a dummy driver that is used once a card
621  * as all IO to the card will be handled (and failed) by the dummy driver
623  * shutdown still need to be provided by the card driver.
627  * .set_config_rom() is never called since the card is taken out of card_list
631 static int dummy_read_phy_reg(struct fw_card *card, int address)  in dummy_read_phy_reg()  argument
636 static int dummy_update_phy_reg(struct fw_card *card, int address,  in dummy_update_phy_reg()  argument
642 static void dummy_send_request(struct fw_card *card, struct fw_packet *packet)  in dummy_send_request()  argument
644 	packet->callback(packet, card, RCODE_CANCELLED);  in dummy_send_request()
647 static void dummy_send_response(struct fw_card *card, struct fw_packet *packet)  in dummy_send_response()  argument
649 	packet->callback(packet, card, RCODE_CANCELLED);  in dummy_send_response()
652 static int dummy_cancel_packet(struct fw_card *card, struct fw_packet *packet)  in dummy_cancel_packet()  argument
657 static int dummy_enable_phys_dma(struct fw_card *card,  in dummy_enable_phys_dma()  argument
663 static struct fw_iso_context *dummy_allocate_iso_context(struct fw_card *card,  in dummy_allocate_iso_context()  argument
669 static u32 dummy_read_csr(struct fw_card *card, int csr_offset)  in dummy_read_csr()  argument
674 static void dummy_write_csr(struct fw_card *card, int csr_offset, u32 value)  in dummy_write_csr()  argument
723 	struct fw_card *card = container_of(kref, struct fw_card, kref);  in fw_card_release()  local
725 	complete(&card->done);  in fw_card_release()
729 void fw_core_remove_card(struct fw_card *card)  in fw_core_remove_card()  argument
735 	card->driver->update_phy_reg(card, 4,  in fw_core_remove_card()
737 	fw_schedule_bus_reset(card, false, true);  in fw_core_remove_card()
740 		list_del_init(&card->link);  in fw_core_remove_card()
742 	/* Switch off most of the card driver interface. */  in fw_core_remove_card()
743 	dummy_driver.free_iso_context	= card->driver->free_iso_context;  in fw_core_remove_card()
744 	dummy_driver.stop_iso		= card->driver->stop_iso;  in fw_core_remove_card()
745 	card->driver = &dummy_driver;  in fw_core_remove_card()
746 	drain_workqueue(card->isoc_wq);  in fw_core_remove_card()
748 	scoped_guard(spinlock_irqsave, &card->lock)  in fw_core_remove_card()
749 		fw_destroy_nodes(card);  in fw_core_remove_card()
752 	fw_card_put(card);  in fw_core_remove_card()
753 	wait_for_completion(&card->done);  in fw_core_remove_card()
755 	destroy_workqueue(card->isoc_wq);  in fw_core_remove_card()
757 	WARN_ON(!list_empty(&card->transaction_list));  in fw_core_remove_card()
763  *			    for controller card.
764  * @card: The instance of card for 1394 OHCI controller.
768  * controller card. This function accesses the region without any lock primitives or IRQ mask.
777 int fw_card_read_cycle_time(struct fw_card *card, u32 *cycle_time)  in fw_card_read_cycle_time()  argument
779 	if (card->driver->read_csr == dummy_read_csr)  in fw_card_read_cycle_time()
784 	*cycle_time = card->driver->read_csr(card, CSR_CYCLE_TIME);  in fw_card_read_cycle_time()