40 static int queue_interrupt_event(struct slot *p_slot, u32 event_type)  in queue_interrupt_event()  argument
49 	info->p_slot = p_slot;  in queue_interrupt_event()
52 	queue_work(p_slot->wq, &info->work);  in queue_interrupt_event()
57 u8 pciehp_handle_attention_button(struct slot *p_slot)  in pciehp_handle_attention_button()  argument
60 	struct controller *ctrl = p_slot->ctrl;  in pciehp_handle_attention_button()
68 	ctrl_info(ctrl, "Button pressed on Slot(%s)\n", slot_name(p_slot));  in pciehp_handle_attention_button()
71 	queue_interrupt_event(p_slot, event_type);  in pciehp_handle_attention_button()
76 u8 pciehp_handle_switch_change(struct slot *p_slot)  in pciehp_handle_switch_change()  argument
80 	struct controller *ctrl = p_slot->ctrl;  in pciehp_handle_switch_change()
85 	pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_handle_switch_change()
90 		ctrl_info(ctrl, "Latch open on Slot(%s)\n", slot_name(p_slot));  in pciehp_handle_switch_change()
96 		ctrl_info(ctrl, "Latch close on Slot(%s)\n", slot_name(p_slot));  in pciehp_handle_switch_change()
100 	queue_interrupt_event(p_slot, event_type);  in pciehp_handle_switch_change()
105 u8 pciehp_handle_presence_change(struct slot *p_slot)  in pciehp_handle_presence_change()  argument
109 	struct controller *ctrl = p_slot->ctrl;  in pciehp_handle_presence_change()
117 	pciehp_get_adapter_status(p_slot, &presence_save);  in pciehp_handle_presence_change()
122 		ctrl_info(ctrl, "Card present on Slot(%s)\n", slot_name(p_slot));  in pciehp_handle_presence_change()
129 			  slot_name(p_slot));  in pciehp_handle_presence_change()
133 	queue_interrupt_event(p_slot, event_type);  in pciehp_handle_presence_change()
138 u8 pciehp_handle_power_fault(struct slot *p_slot)  in pciehp_handle_power_fault()  argument
141 	struct controller *ctrl = p_slot->ctrl;  in pciehp_handle_power_fault()
145 	ctrl_err(ctrl, "Power fault on slot %s\n", slot_name(p_slot));  in pciehp_handle_power_fault()
148 	queue_interrupt_event(p_slot, event_type);  in pciehp_handle_power_fault()
153 void pciehp_handle_linkstate_change(struct slot *p_slot)  in pciehp_handle_linkstate_change()  argument
156 	struct controller *ctrl = p_slot->ctrl;  in pciehp_handle_linkstate_change()
163 			  slot_name(p_slot));  in pciehp_handle_linkstate_change()
167 			  slot_name(p_slot));  in pciehp_handle_linkstate_change()
171 	queue_interrupt_event(p_slot, event_type);  in pciehp_handle_linkstate_change()
203 static int board_added(struct slot *p_slot)  in board_added()  argument
206 	struct controller *ctrl = p_slot->ctrl;  in board_added()
211 		retval = pciehp_power_on_slot(p_slot);  in board_added()
216 	pciehp_green_led_blink(p_slot);  in board_added()
226 	if (ctrl->power_fault_detected || pciehp_query_power_fault(p_slot)) {  in board_added()
227 		ctrl_err(ctrl, "Power fault on slot %s\n", slot_name(p_slot));  in board_added()
232 	retval = pciehp_configure_device(p_slot);  in board_added()
240 	pciehp_green_led_on(p_slot);  in board_added()
244 	set_slot_off(ctrl, p_slot);  in board_added()
252 static int remove_board(struct slot *p_slot)  in remove_board()  argument
255 	struct controller *ctrl = p_slot->ctrl;  in remove_board()
257 	retval = pciehp_unconfigure_device(p_slot);  in remove_board()
262 		pciehp_power_off_slot(p_slot);  in remove_board()
273 	pciehp_green_led_off(p_slot);  in remove_board()
278 	struct slot *p_slot;  member
296 	struct slot *p_slot = info->p_slot;  in pciehp_power_thread()  local
301 		ctrl_dbg(p_slot->ctrl,  in pciehp_power_thread()
303 			 pci_domain_nr(p_slot->ctrl->pcie->port->subordinate),  in pciehp_power_thread()
304 			 p_slot->ctrl->pcie->port->subordinate->number);  in pciehp_power_thread()
305 		mutex_lock(&p_slot->hotplug_lock);  in pciehp_power_thread()
306 		pciehp_disable_slot(p_slot);  in pciehp_power_thread()
307 		mutex_unlock(&p_slot->hotplug_lock);  in pciehp_power_thread()
308 		mutex_lock(&p_slot->lock);  in pciehp_power_thread()
309 		p_slot->state = STATIC_STATE;  in pciehp_power_thread()
310 		mutex_unlock(&p_slot->lock);  in pciehp_power_thread()
313 		ctrl_dbg(p_slot->ctrl,  in pciehp_power_thread()
315 			 pci_domain_nr(p_slot->ctrl->pcie->port->subordinate),  in pciehp_power_thread()
316 			 p_slot->ctrl->pcie->port->subordinate->number);  in pciehp_power_thread()
317 		mutex_lock(&p_slot->hotplug_lock);  in pciehp_power_thread()
318 		ret = pciehp_enable_slot(p_slot);  in pciehp_power_thread()
319 		mutex_unlock(&p_slot->hotplug_lock);  in pciehp_power_thread()
321 			pciehp_green_led_off(p_slot);  in pciehp_power_thread()
322 		mutex_lock(&p_slot->lock);  in pciehp_power_thread()
323 		p_slot->state = STATIC_STATE;  in pciehp_power_thread()
324 		mutex_unlock(&p_slot->lock);  in pciehp_power_thread()
335 	struct slot *p_slot = container_of(work, struct slot, work.work);  in pciehp_queue_pushbutton_work()  local
340 		ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",  in pciehp_queue_pushbutton_work()
344 	info->p_slot = p_slot;  in pciehp_queue_pushbutton_work()
347 	mutex_lock(&p_slot->lock);  in pciehp_queue_pushbutton_work()
348 	switch (p_slot->state) {  in pciehp_queue_pushbutton_work()
350 		p_slot->state = POWEROFF_STATE;  in pciehp_queue_pushbutton_work()
354 		p_slot->state = POWERON_STATE;  in pciehp_queue_pushbutton_work()
361 	queue_work(p_slot->wq, &info->work);  in pciehp_queue_pushbutton_work()
363 	mutex_unlock(&p_slot->lock);  in pciehp_queue_pushbutton_work()
369 static void handle_button_press_event(struct slot *p_slot)  in handle_button_press_event()  argument
371 	struct controller *ctrl = p_slot->ctrl;  in handle_button_press_event()
374 	switch (p_slot->state) {  in handle_button_press_event()
376 		pciehp_get_power_status(p_slot, &getstatus);  in handle_button_press_event()
378 			p_slot->state = BLINKINGOFF_STATE;  in handle_button_press_event()
380 				  slot_name(p_slot));  in handle_button_press_event()
382 			p_slot->state = BLINKINGON_STATE;  in handle_button_press_event()
384 				  slot_name(p_slot));  in handle_button_press_event()
387 		pciehp_green_led_blink(p_slot);  in handle_button_press_event()
388 		pciehp_set_attention_status(p_slot, 0);  in handle_button_press_event()
389 		queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);  in handle_button_press_event()
398 		ctrl_info(ctrl, "Button cancel on Slot(%s)\n", slot_name(p_slot));  in handle_button_press_event()
399 		cancel_delayed_work(&p_slot->work);  in handle_button_press_event()
400 		if (p_slot->state == BLINKINGOFF_STATE)  in handle_button_press_event()
401 			pciehp_green_led_on(p_slot);  in handle_button_press_event()
403 			pciehp_green_led_off(p_slot);  in handle_button_press_event()
404 		pciehp_set_attention_status(p_slot, 0);  in handle_button_press_event()
406 			  slot_name(p_slot));  in handle_button_press_event()
407 		p_slot->state = STATIC_STATE;  in handle_button_press_event()
416 		ctrl_info(ctrl, "Button ignore on Slot(%s)\n", slot_name(p_slot));  in handle_button_press_event()
427 static void handle_surprise_event(struct slot *p_slot)  in handle_surprise_event()  argument
434 		ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",  in handle_surprise_event()
438 	info->p_slot = p_slot;  in handle_surprise_event()
441 	pciehp_get_adapter_status(p_slot, &getstatus);  in handle_surprise_event()
443 		p_slot->state = POWEROFF_STATE;  in handle_surprise_event()
446 		p_slot->state = POWERON_STATE;  in handle_surprise_event()
450 	queue_work(p_slot->wq, &info->work);  in handle_surprise_event()
456 static void handle_link_event(struct slot *p_slot, u32 event)  in handle_link_event()  argument
458 	struct controller *ctrl = p_slot->ctrl;  in handle_link_event()
463 		ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",  in handle_link_event()
467 	info->p_slot = p_slot;  in handle_link_event()
471 	switch (p_slot->state) {  in handle_link_event()
474 		cancel_delayed_work(&p_slot->work);  in handle_link_event()
477 		p_slot->state = event == INT_LINK_UP ?  in handle_link_event()
479 		queue_work(p_slot->wq, &info->work);  in handle_link_event()
485 				  slot_name(p_slot));  in handle_link_event()
490 				  slot_name(p_slot));  in handle_link_event()
491 			p_slot->state = POWEROFF_STATE;  in handle_link_event()
492 			queue_work(p_slot->wq, &info->work);  in handle_link_event()
499 				  slot_name(p_slot));  in handle_link_event()
500 			p_slot->state = POWERON_STATE;  in handle_link_event()
501 			queue_work(p_slot->wq, &info->work);  in handle_link_event()
505 				  slot_name(p_slot));  in handle_link_event()
511 			 slot_name(p_slot));  in handle_link_event()
520 	struct slot *p_slot = info->p_slot;  in interrupt_event_handler()  local
521 	struct controller *ctrl = p_slot->ctrl;  in interrupt_event_handler()
523 	mutex_lock(&p_slot->lock);  in interrupt_event_handler()
526 		handle_button_press_event(p_slot);  in interrupt_event_handler()
531 		pciehp_set_attention_status(p_slot, 1);  in interrupt_event_handler()
532 		pciehp_green_led_off(p_slot);  in interrupt_event_handler()
536 		handle_surprise_event(p_slot);  in interrupt_event_handler()
544 		handle_surprise_event(p_slot);  in interrupt_event_handler()
548 		handle_link_event(p_slot, info->event_type);  in interrupt_event_handler()
553 	mutex_unlock(&p_slot->lock);  in interrupt_event_handler()
561 int pciehp_enable_slot(struct slot *p_slot)  in pciehp_enable_slot()  argument
565 	struct controller *ctrl = p_slot->ctrl;  in pciehp_enable_slot()
567 	pciehp_get_adapter_status(p_slot, &getstatus);  in pciehp_enable_slot()
569 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in pciehp_enable_slot()
572 	if (MRL_SENS(p_slot->ctrl)) {  in pciehp_enable_slot()
573 		pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_enable_slot()
576 				  slot_name(p_slot));  in pciehp_enable_slot()
581 	if (POWER_CTRL(p_slot->ctrl)) {  in pciehp_enable_slot()
582 		pciehp_get_power_status(p_slot, &getstatus);  in pciehp_enable_slot()
585 				  slot_name(p_slot));  in pciehp_enable_slot()
590 	pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_enable_slot()
592 	rc = board_added(p_slot);  in pciehp_enable_slot()
594 		pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_enable_slot()
602 int pciehp_disable_slot(struct slot *p_slot)  in pciehp_disable_slot()  argument
605 	struct controller *ctrl = p_slot->ctrl;  in pciehp_disable_slot()
607 	if (!p_slot->ctrl)  in pciehp_disable_slot()
610 	if (POWER_CTRL(p_slot->ctrl)) {  in pciehp_disable_slot()
611 		pciehp_get_power_status(p_slot, &getstatus);  in pciehp_disable_slot()
614 				  slot_name(p_slot));  in pciehp_disable_slot()
619 	return remove_board(p_slot);  in pciehp_disable_slot()
622 int pciehp_sysfs_enable_slot(struct slot *p_slot)  in pciehp_sysfs_enable_slot()  argument
625 	struct controller *ctrl = p_slot->ctrl;  in pciehp_sysfs_enable_slot()
627 	mutex_lock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
628 	switch (p_slot->state) {  in pciehp_sysfs_enable_slot()
630 		cancel_delayed_work(&p_slot->work);  in pciehp_sysfs_enable_slot()
632 		p_slot->state = POWERON_STATE;  in pciehp_sysfs_enable_slot()
633 		mutex_unlock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
634 		mutex_lock(&p_slot->hotplug_lock);  in pciehp_sysfs_enable_slot()
635 		retval = pciehp_enable_slot(p_slot);  in pciehp_sysfs_enable_slot()
636 		mutex_unlock(&p_slot->hotplug_lock);  in pciehp_sysfs_enable_slot()
637 		mutex_lock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
638 		p_slot->state = STATIC_STATE;  in pciehp_sysfs_enable_slot()
642 			  slot_name(p_slot));  in pciehp_sysfs_enable_slot()
647 			  slot_name(p_slot));  in pciehp_sysfs_enable_slot()
651 			 slot_name(p_slot));  in pciehp_sysfs_enable_slot()
654 	mutex_unlock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
659 int pciehp_sysfs_disable_slot(struct slot *p_slot)  in pciehp_sysfs_disable_slot()  argument
662 	struct controller *ctrl = p_slot->ctrl;  in pciehp_sysfs_disable_slot()
664 	mutex_lock(&p_slot->lock);  in pciehp_sysfs_disable_slot()
665 	switch (p_slot->state) {  in pciehp_sysfs_disable_slot()
667 		cancel_delayed_work(&p_slot->work);  in pciehp_sysfs_disable_slot()
669 		p_slot->state = POWEROFF_STATE;  in pciehp_sysfs_disable_slot()
670 		mutex_unlock(&p_slot->lock);  in pciehp_sysfs_disable_slot()
671 		retval = pciehp_disable_slot(p_slot);  in pciehp_sysfs_disable_slot()
672 		mutex_lock(&p_slot->lock);  in pciehp_sysfs_disable_slot()
673 		p_slot->state = STATIC_STATE;  in pciehp_sysfs_disable_slot()
677 			  slot_name(p_slot));  in pciehp_sysfs_disable_slot()
682 			  slot_name(p_slot));  in pciehp_sysfs_disable_slot()
686 			 slot_name(p_slot));  in pciehp_sysfs_disable_slot()
689 	mutex_unlock(&p_slot->lock);  in pciehp_sysfs_disable_slot()