39 static int shpchp_enable_slot(struct slot *p_slot);
40 static int shpchp_disable_slot(struct slot *p_slot);
42 static int queue_interrupt_event(struct slot *p_slot, u32 event_type)  in queue_interrupt_event()  argument
51 	info->p_slot = p_slot;  in queue_interrupt_event()
54 	queue_work(p_slot->wq, &info->work);  in queue_interrupt_event()
61 	struct slot *p_slot;  in shpchp_handle_attention_button()  local
67 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_attention_button()
68 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_handle_attention_button()
73 	ctrl_info(ctrl, "Button pressed on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_attention_button()
76 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_attention_button()
84 	struct slot *p_slot;  in shpchp_handle_switch_change()  local
91 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_switch_change()
92 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_handle_switch_change()
93 	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_handle_switch_change()
95 		 p_slot->presence_save, p_slot->pwr_save);  in shpchp_handle_switch_change()
101 		ctrl_info(ctrl, "Latch open on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_switch_change()
103 		if (p_slot->pwr_save && p_slot->presence_save) {  in shpchp_handle_switch_change()
111 		ctrl_info(ctrl, "Latch close on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_switch_change()
115 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_switch_change()
122 	struct slot *p_slot;  in shpchp_handle_presence_change()  local
128 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_presence_change()
133 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_handle_presence_change()
134 	if (p_slot->presence_save) {  in shpchp_handle_presence_change()
139 			  slot_name(p_slot));  in shpchp_handle_presence_change()
146 			  slot_name(p_slot));  in shpchp_handle_presence_change()
150 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_presence_change()
157 	struct slot *p_slot;  in shpchp_handle_power_fault()  local
163 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_power_fault()
165 	if (!(p_slot->hpc_ops->query_power_fault(p_slot))) {  in shpchp_handle_power_fault()
170 			  slot_name(p_slot));  in shpchp_handle_power_fault()
171 		p_slot->status = 0x00;  in shpchp_handle_power_fault()
177 		ctrl_info(ctrl, "Power fault on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_power_fault()
180 		p_slot->status = 0xFF;  in shpchp_handle_power_fault()
184 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_power_fault()
192 static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,  in change_bus_speed()  argument
198 	rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed);  in change_bus_speed()
243 static int board_added(struct slot *p_slot)  in board_added()  argument
249 	struct controller *ctrl = p_slot->ctrl;  in board_added()
252 	hp_slot = p_slot->device - ctrl->slot_device_offset;  in board_added()
255 		 __func__, p_slot->device, ctrl->slot_device_offset, hp_slot);  in board_added()
258 	rc = p_slot->hpc_ops->power_on_slot(p_slot);  in board_added()
265 		rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);  in board_added()
273 		rc = p_slot->hpc_ops->slot_enable(p_slot);  in board_added()
280 	rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &asp);  in board_added()
297 	rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, asp, bsp, msp);  in board_added()
302 	rc = p_slot->hpc_ops->slot_enable(p_slot);  in board_added()
311 	ctrl_dbg(ctrl, "%s: slot status = %x\n", __func__, p_slot->status);  in board_added()
313 	if (p_slot->status == 0xFF) {  in board_added()
317 		p_slot->status = 0;  in board_added()
321 	if (shpchp_configure_device(p_slot)) {  in board_added()
323 			 pci_domain_nr(parent), p_slot->bus, p_slot->device);  in board_added()
327 	p_slot->status = 0;  in board_added()
328 	p_slot->is_a_board = 0x01;  in board_added()
329 	p_slot->pwr_save = 1;  in board_added()
331 	p_slot->hpc_ops->green_led_on(p_slot);  in board_added()
337 	rc = p_slot->hpc_ops->slot_disable(p_slot);  in board_added()
352 static int remove_board(struct slot *p_slot)  in remove_board()  argument
354 	struct controller *ctrl = p_slot->ctrl;  in remove_board()
358 	if (shpchp_unconfigure_device(p_slot))  in remove_board()
361 	hp_slot = p_slot->device - ctrl->slot_device_offset;  in remove_board()
362 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in remove_board()
367 	if (p_slot->is_a_board)  in remove_board()
368 		p_slot->status = 0x01;  in remove_board()
371 	rc = p_slot->hpc_ops->slot_disable(p_slot);  in remove_board()
378 	rc = p_slot->hpc_ops->set_attention_status(p_slot, 0);  in remove_board()
384 	p_slot->pwr_save = 0;  in remove_board()
385 	p_slot->is_a_board = 0;  in remove_board()
392 	struct slot *p_slot;  member
407 	struct slot *p_slot = info->p_slot;  in shpchp_pushbutton_thread()  local
409 	mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
410 	switch (p_slot->state) {  in shpchp_pushbutton_thread()
412 		mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
413 		shpchp_disable_slot(p_slot);  in shpchp_pushbutton_thread()
414 		mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
415 		p_slot->state = STATIC_STATE;  in shpchp_pushbutton_thread()
418 		mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
419 		if (shpchp_enable_slot(p_slot))  in shpchp_pushbutton_thread()
420 			p_slot->hpc_ops->green_led_off(p_slot);  in shpchp_pushbutton_thread()
421 		mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
422 		p_slot->state = STATIC_STATE;  in shpchp_pushbutton_thread()
427 	mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
434 	struct slot *p_slot = container_of(work, struct slot, work.work);  in shpchp_queue_pushbutton_work()  local
439 		ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",  in shpchp_queue_pushbutton_work()
443 	info->p_slot = p_slot;  in shpchp_queue_pushbutton_work()
446 	mutex_lock(&p_slot->lock);  in shpchp_queue_pushbutton_work()
447 	switch (p_slot->state) {  in shpchp_queue_pushbutton_work()
449 		p_slot->state = POWEROFF_STATE;  in shpchp_queue_pushbutton_work()
452 		p_slot->state = POWERON_STATE;  in shpchp_queue_pushbutton_work()
458 	queue_work(p_slot->wq, &info->work);  in shpchp_queue_pushbutton_work()
460 	mutex_unlock(&p_slot->lock);  in shpchp_queue_pushbutton_work()
485 static void handle_button_press_event(struct slot *p_slot)  in handle_button_press_event()  argument
488 	struct controller *ctrl = p_slot->ctrl;  in handle_button_press_event()
490 	switch (p_slot->state) {  in handle_button_press_event()
492 		p_slot->hpc_ops->get_power_status(p_slot, &getstatus);  in handle_button_press_event()
494 			p_slot->state = BLINKINGOFF_STATE;  in handle_button_press_event()
496 				  slot_name(p_slot));  in handle_button_press_event()
498 			p_slot->state = BLINKINGON_STATE;  in handle_button_press_event()
500 				  slot_name(p_slot));  in handle_button_press_event()
503 		p_slot->hpc_ops->green_led_blink(p_slot);  in handle_button_press_event()
504 		p_slot->hpc_ops->set_attention_status(p_slot, 0);  in handle_button_press_event()
506 		queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);  in handle_button_press_event()
516 			  slot_name(p_slot));  in handle_button_press_event()
517 		cancel_delayed_work(&p_slot->work);  in handle_button_press_event()
518 		if (p_slot->state == BLINKINGOFF_STATE)  in handle_button_press_event()
519 			p_slot->hpc_ops->green_led_on(p_slot);  in handle_button_press_event()
521 			p_slot->hpc_ops->green_led_off(p_slot);  in handle_button_press_event()
522 		p_slot->hpc_ops->set_attention_status(p_slot, 0);  in handle_button_press_event()
524 			  slot_name(p_slot));  in handle_button_press_event()
525 		p_slot->state = STATIC_STATE;  in handle_button_press_event()
535 			  slot_name(p_slot));  in handle_button_press_event()
536 		update_slot_info(p_slot);  in handle_button_press_event()
547 	struct slot *p_slot = info->p_slot;  in interrupt_event_handler()  local
549 	mutex_lock(&p_slot->lock);  in interrupt_event_handler()
552 		handle_button_press_event(p_slot);  in interrupt_event_handler()
555 		ctrl_dbg(p_slot->ctrl, "%s: Power fault\n", __func__);  in interrupt_event_handler()
556 		p_slot->hpc_ops->set_attention_status(p_slot, 1);  in interrupt_event_handler()
557 		p_slot->hpc_ops->green_led_off(p_slot);  in interrupt_event_handler()
560 		update_slot_info(p_slot);  in interrupt_event_handler()
563 	mutex_unlock(&p_slot->lock);  in interrupt_event_handler()
569 static int shpchp_enable_slot (struct slot *p_slot)  in shpchp_enable_slot()  argument
573 	struct controller *ctrl = p_slot->ctrl;  in shpchp_enable_slot()
576 	mutex_lock(&p_slot->ctrl->crit_sect);  in shpchp_enable_slot()
577 	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);  in shpchp_enable_slot()
579 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in shpchp_enable_slot()
582 	rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
584 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));  in shpchp_enable_slot()
587 	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);  in shpchp_enable_slot()
590 			  slot_name(p_slot));  in shpchp_enable_slot()
594 	p_slot->is_a_board = 1;  in shpchp_enable_slot()
597 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_enable_slot()
598 	p_slot->hpc_ops->get_power_status(p_slot, &(p_slot->pwr_save));  in shpchp_enable_slot()
599 	ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);  in shpchp_enable_slot()
600 	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
602 	if (((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) ||  in shpchp_enable_slot()
603 	    (p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458))  in shpchp_enable_slot()
604 	     && p_slot->ctrl->num_slots == 1) {  in shpchp_enable_slot()
606 		amd_pogo_errata_save_misc_reg(p_slot);  in shpchp_enable_slot()
607 		retval = board_added(p_slot);  in shpchp_enable_slot()
609 		amd_pogo_errata_restore_misc_reg(p_slot);  in shpchp_enable_slot()
611 		retval = board_added(p_slot);  in shpchp_enable_slot()
614 		p_slot->hpc_ops->get_adapter_status(p_slot,  in shpchp_enable_slot()
615 				&(p_slot->presence_save));  in shpchp_enable_slot()
616 		p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
619 	update_slot_info(p_slot);  in shpchp_enable_slot()
621 	mutex_unlock(&p_slot->ctrl->crit_sect);  in shpchp_enable_slot()
626 static int shpchp_disable_slot (struct slot *p_slot)  in shpchp_disable_slot()  argument
630 	struct controller *ctrl = p_slot->ctrl;  in shpchp_disable_slot()
632 	if (!p_slot->ctrl)  in shpchp_disable_slot()
636 	mutex_lock(&p_slot->ctrl->crit_sect);  in shpchp_disable_slot()
638 	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);  in shpchp_disable_slot()
640 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in shpchp_disable_slot()
643 	rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_disable_slot()
645 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));  in shpchp_disable_slot()
648 	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);  in shpchp_disable_slot()
651 			  slot_name(p_slot));  in shpchp_disable_slot()
655 	retval = remove_board(p_slot);  in shpchp_disable_slot()
656 	update_slot_info(p_slot);  in shpchp_disable_slot()
658 	mutex_unlock(&p_slot->ctrl->crit_sect);  in shpchp_disable_slot()
662 int shpchp_sysfs_enable_slot(struct slot *p_slot)  in shpchp_sysfs_enable_slot()  argument
665 	struct controller *ctrl = p_slot->ctrl;  in shpchp_sysfs_enable_slot()
667 	mutex_lock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
668 	switch (p_slot->state) {  in shpchp_sysfs_enable_slot()
670 		cancel_delayed_work(&p_slot->work);  in shpchp_sysfs_enable_slot()
672 		p_slot->state = POWERON_STATE;  in shpchp_sysfs_enable_slot()
673 		mutex_unlock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
674 		retval = shpchp_enable_slot(p_slot);  in shpchp_sysfs_enable_slot()
675 		mutex_lock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
676 		p_slot->state = STATIC_STATE;  in shpchp_sysfs_enable_slot()
680 			  slot_name(p_slot));  in shpchp_sysfs_enable_slot()
685 			  slot_name(p_slot));  in shpchp_sysfs_enable_slot()
689 			 slot_name(p_slot));  in shpchp_sysfs_enable_slot()
692 	mutex_unlock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
697 int shpchp_sysfs_disable_slot(struct slot *p_slot)  in shpchp_sysfs_disable_slot()  argument
700 	struct controller *ctrl = p_slot->ctrl;  in shpchp_sysfs_disable_slot()
702 	mutex_lock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
703 	switch (p_slot->state) {  in shpchp_sysfs_disable_slot()
705 		cancel_delayed_work(&p_slot->work);  in shpchp_sysfs_disable_slot()
707 		p_slot->state = POWEROFF_STATE;  in shpchp_sysfs_disable_slot()
708 		mutex_unlock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
709 		retval = shpchp_disable_slot(p_slot);  in shpchp_sysfs_disable_slot()
710 		mutex_lock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
711 		p_slot->state = STATIC_STATE;  in shpchp_sysfs_disable_slot()
715 			  slot_name(p_slot));  in shpchp_sysfs_disable_slot()
720 			  slot_name(p_slot));  in shpchp_sysfs_disable_slot()
724 			 slot_name(p_slot));  in shpchp_sysfs_disable_slot()
727 	mutex_unlock(&p_slot->lock);  in shpchp_sysfs_disable_slot()