40 void pciehp_queue_interrupt_event(struct slot *p_slot, u32 event_type)  in pciehp_queue_interrupt_event()  argument
46 		ctrl_err(p_slot->ctrl, "dropped event %d (ENOMEM)\n", event_type);  in pciehp_queue_interrupt_event()
52 	info->p_slot = p_slot;  in pciehp_queue_interrupt_event()
53 	queue_work(p_slot->wq, &info->work);  in pciehp_queue_interrupt_event()
85 static int board_added(struct slot *p_slot)  in board_added()  argument
88 	struct controller *ctrl = p_slot->ctrl;  in board_added()
93 		retval = pciehp_power_on_slot(p_slot);  in board_added()
98 	pciehp_green_led_blink(p_slot);  in board_added()
108 	if (ctrl->power_fault_detected || pciehp_query_power_fault(p_slot)) {  in board_added()
109 		ctrl_err(ctrl, "Power fault on slot %s\n", slot_name(p_slot));  in board_added()
114 	retval = pciehp_configure_device(p_slot);  in board_added()
122 	pciehp_green_led_on(p_slot);  in board_added()
126 	set_slot_off(ctrl, p_slot);  in board_added()
134 static int remove_board(struct slot *p_slot)  in remove_board()  argument
137 	struct controller *ctrl = p_slot->ctrl;  in remove_board()
139 	retval = pciehp_unconfigure_device(p_slot);  in remove_board()
144 		pciehp_power_off_slot(p_slot);  in remove_board()
155 	pciehp_green_led_off(p_slot);  in remove_board()
160 	struct slot *p_slot;  member
178 	struct slot *p_slot = info->p_slot;  in pciehp_power_thread()  local
183 		mutex_lock(&p_slot->hotplug_lock);  in pciehp_power_thread()
184 		pciehp_disable_slot(p_slot);  in pciehp_power_thread()
185 		mutex_unlock(&p_slot->hotplug_lock);  in pciehp_power_thread()
186 		mutex_lock(&p_slot->lock);  in pciehp_power_thread()
187 		p_slot->state = STATIC_STATE;  in pciehp_power_thread()
188 		mutex_unlock(&p_slot->lock);  in pciehp_power_thread()
191 		mutex_lock(&p_slot->hotplug_lock);  in pciehp_power_thread()
192 		ret = pciehp_enable_slot(p_slot);  in pciehp_power_thread()
193 		mutex_unlock(&p_slot->hotplug_lock);  in pciehp_power_thread()
195 			pciehp_green_led_off(p_slot);  in pciehp_power_thread()
196 		mutex_lock(&p_slot->lock);  in pciehp_power_thread()
197 		p_slot->state = STATIC_STATE;  in pciehp_power_thread()
198 		mutex_unlock(&p_slot->lock);  in pciehp_power_thread()
207 static void pciehp_queue_power_work(struct slot *p_slot, int req)  in pciehp_queue_power_work()  argument
211 	p_slot->state = (req == ENABLE_REQ) ? POWERON_STATE : POWEROFF_STATE;  in pciehp_queue_power_work()
215 		ctrl_err(p_slot->ctrl, "no memory to queue %s request\n",  in pciehp_queue_power_work()
219 	info->p_slot = p_slot;  in pciehp_queue_power_work()
222 	queue_work(p_slot->wq, &info->work);  in pciehp_queue_power_work()
227 	struct slot *p_slot = container_of(work, struct slot, work.work);  in pciehp_queue_pushbutton_work()  local
229 	mutex_lock(&p_slot->lock);  in pciehp_queue_pushbutton_work()
230 	switch (p_slot->state) {  in pciehp_queue_pushbutton_work()
232 		pciehp_queue_power_work(p_slot, DISABLE_REQ);  in pciehp_queue_pushbutton_work()
235 		pciehp_queue_power_work(p_slot, ENABLE_REQ);  in pciehp_queue_pushbutton_work()
240 	mutex_unlock(&p_slot->lock);  in pciehp_queue_pushbutton_work()
246 static void handle_button_press_event(struct slot *p_slot)  in handle_button_press_event()  argument
248 	struct controller *ctrl = p_slot->ctrl;  in handle_button_press_event()
251 	switch (p_slot->state) {  in handle_button_press_event()
253 		pciehp_get_power_status(p_slot, &getstatus);  in handle_button_press_event()
255 			p_slot->state = BLINKINGOFF_STATE;  in handle_button_press_event()
257 				  slot_name(p_slot));  in handle_button_press_event()
259 			p_slot->state = BLINKINGON_STATE;  in handle_button_press_event()
261 				  slot_name(p_slot));  in handle_button_press_event()
264 		pciehp_green_led_blink(p_slot);  in handle_button_press_event()
265 		pciehp_set_attention_status(p_slot, 0);  in handle_button_press_event()
266 		queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);  in handle_button_press_event()
275 		ctrl_info(ctrl, "Button cancel on Slot(%s)\n", slot_name(p_slot));  in handle_button_press_event()
276 		cancel_delayed_work(&p_slot->work);  in handle_button_press_event()
277 		if (p_slot->state == BLINKINGOFF_STATE)  in handle_button_press_event()
278 			pciehp_green_led_on(p_slot);  in handle_button_press_event()
280 			pciehp_green_led_off(p_slot);  in handle_button_press_event()
281 		pciehp_set_attention_status(p_slot, 0);  in handle_button_press_event()
283 			  slot_name(p_slot));  in handle_button_press_event()
284 		p_slot->state = STATIC_STATE;  in handle_button_press_event()
293 		ctrl_info(ctrl, "Button ignore on Slot(%s)\n", slot_name(p_slot));  in handle_button_press_event()
296 		ctrl_warn(ctrl, "ignoring invalid state %#x\n", p_slot->state);  in handle_button_press_event()
304 static void handle_surprise_event(struct slot *p_slot)  in handle_surprise_event()  argument
308 	pciehp_get_adapter_status(p_slot, &getstatus);  in handle_surprise_event()
310 		pciehp_queue_power_work(p_slot, DISABLE_REQ);  in handle_surprise_event()
312 		pciehp_queue_power_work(p_slot, ENABLE_REQ);  in handle_surprise_event()
318 static void handle_link_event(struct slot *p_slot, u32 event)  in handle_link_event()  argument
320 	struct controller *ctrl = p_slot->ctrl;  in handle_link_event()
322 	switch (p_slot->state) {  in handle_link_event()
325 		cancel_delayed_work(&p_slot->work);  in handle_link_event()
328 		pciehp_queue_power_work(p_slot, event == INT_LINK_UP ?  in handle_link_event()
335 				  slot_name(p_slot));  in handle_link_event()
339 				  slot_name(p_slot));  in handle_link_event()
340 			pciehp_queue_power_work(p_slot, DISABLE_REQ);  in handle_link_event()
347 				  slot_name(p_slot));  in handle_link_event()
348 			pciehp_queue_power_work(p_slot, ENABLE_REQ);  in handle_link_event()
352 				  slot_name(p_slot));  in handle_link_event()
357 			 p_slot->state, slot_name(p_slot));  in handle_link_event()
365 	struct slot *p_slot = info->p_slot;  in interrupt_event_handler()  local
366 	struct controller *ctrl = p_slot->ctrl;  in interrupt_event_handler()
368 	mutex_lock(&p_slot->lock);  in interrupt_event_handler()
371 		handle_button_press_event(p_slot);  in interrupt_event_handler()
376 		pciehp_set_attention_status(p_slot, 1);  in interrupt_event_handler()
377 		pciehp_green_led_off(p_slot);  in interrupt_event_handler()
380 		handle_surprise_event(p_slot);  in interrupt_event_handler()
387 		handle_surprise_event(p_slot);  in interrupt_event_handler()
391 		handle_link_event(p_slot, info->event_type);  in interrupt_event_handler()
396 	mutex_unlock(&p_slot->lock);  in interrupt_event_handler()
404 int pciehp_enable_slot(struct slot *p_slot)  in pciehp_enable_slot()  argument
408 	struct controller *ctrl = p_slot->ctrl;  in pciehp_enable_slot()
410 	pciehp_get_adapter_status(p_slot, &getstatus);  in pciehp_enable_slot()
412 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in pciehp_enable_slot()
415 	if (MRL_SENS(p_slot->ctrl)) {  in pciehp_enable_slot()
416 		pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_enable_slot()
419 				  slot_name(p_slot));  in pciehp_enable_slot()
424 	if (POWER_CTRL(p_slot->ctrl)) {  in pciehp_enable_slot()
425 		pciehp_get_power_status(p_slot, &getstatus);  in pciehp_enable_slot()
428 				  slot_name(p_slot));  in pciehp_enable_slot()
433 	pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_enable_slot()
435 	rc = board_added(p_slot);  in pciehp_enable_slot()
437 		pciehp_get_latch_status(p_slot, &getstatus);  in pciehp_enable_slot()
445 int pciehp_disable_slot(struct slot *p_slot)  in pciehp_disable_slot()  argument
448 	struct controller *ctrl = p_slot->ctrl;  in pciehp_disable_slot()
450 	if (!p_slot->ctrl)  in pciehp_disable_slot()
453 	if (POWER_CTRL(p_slot->ctrl)) {  in pciehp_disable_slot()
454 		pciehp_get_power_status(p_slot, &getstatus);  in pciehp_disable_slot()
457 				  slot_name(p_slot));  in pciehp_disable_slot()
462 	return remove_board(p_slot);  in pciehp_disable_slot()
465 int pciehp_sysfs_enable_slot(struct slot *p_slot)  in pciehp_sysfs_enable_slot()  argument
468 	struct controller *ctrl = p_slot->ctrl;  in pciehp_sysfs_enable_slot()
470 	mutex_lock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
471 	switch (p_slot->state) {  in pciehp_sysfs_enable_slot()
473 		cancel_delayed_work(&p_slot->work);  in pciehp_sysfs_enable_slot()
475 		p_slot->state = POWERON_STATE;  in pciehp_sysfs_enable_slot()
476 		mutex_unlock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
477 		mutex_lock(&p_slot->hotplug_lock);  in pciehp_sysfs_enable_slot()
478 		retval = pciehp_enable_slot(p_slot);  in pciehp_sysfs_enable_slot()
479 		mutex_unlock(&p_slot->hotplug_lock);  in pciehp_sysfs_enable_slot()
480 		mutex_lock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
481 		p_slot->state = STATIC_STATE;  in pciehp_sysfs_enable_slot()
485 			  slot_name(p_slot));  in pciehp_sysfs_enable_slot()
490 			  slot_name(p_slot));  in pciehp_sysfs_enable_slot()
494 			 p_slot->state, slot_name(p_slot));  in pciehp_sysfs_enable_slot()
497 	mutex_unlock(&p_slot->lock);  in pciehp_sysfs_enable_slot()
502 int pciehp_sysfs_disable_slot(struct slot *p_slot)  in pciehp_sysfs_disable_slot()  argument
505 	struct controller *ctrl = p_slot->ctrl;  in pciehp_sysfs_disable_slot()
507 	mutex_lock(&p_slot->lock);  in pciehp_sysfs_disable_slot()
508 	switch (p_slot->state) {  in pciehp_sysfs_disable_slot()
510 		cancel_delayed_work(&p_slot->work);  in pciehp_sysfs_disable_slot()
512 		p_slot->state = POWEROFF_STATE;  in pciehp_sysfs_disable_slot()
513 		mutex_unlock(&p_slot->lock);  in pciehp_sysfs_disable_slot()
514 		retval = pciehp_disable_slot(p_slot);  in pciehp_sysfs_disable_slot()
515 		mutex_lock(&p_slot->lock);  in pciehp_sysfs_disable_slot()
516 		p_slot->state = STATIC_STATE;  in pciehp_sysfs_disable_slot()
520 			  slot_name(p_slot));  in pciehp_sysfs_disable_slot()
525 			  slot_name(p_slot));  in pciehp_sysfs_disable_slot()
529 			 p_slot->state, slot_name(p_slot));  in pciehp_sysfs_disable_slot()
532 	mutex_unlock(&p_slot->lock);  in pciehp_sysfs_disable_slot()