25 static int shpchp_enable_slot(struct slot *p_slot);
26 static int shpchp_disable_slot(struct slot *p_slot);
28 static int queue_interrupt_event(struct slot *p_slot, u32 event_type)  in queue_interrupt_event()  argument
37 	info->p_slot = p_slot;  in queue_interrupt_event()
40 	queue_work(p_slot->wq, &info->work);  in queue_interrupt_event()
47 	struct slot *p_slot;  in shpchp_handle_attention_button()  local
53 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_attention_button()
54 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_handle_attention_button()
59 	ctrl_info(ctrl, "Button pressed on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_attention_button()
62 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_attention_button()
70 	struct slot *p_slot;  in shpchp_handle_switch_change()  local
77 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_switch_change()
78 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_handle_switch_change()
79 	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_handle_switch_change()
81 		 p_slot->presence_save, p_slot->pwr_save);  in shpchp_handle_switch_change()
87 		ctrl_info(ctrl, "Latch open on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_switch_change()
89 		if (p_slot->pwr_save && p_slot->presence_save) {  in shpchp_handle_switch_change()
97 		ctrl_info(ctrl, "Latch close on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_switch_change()
101 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_switch_change()
108 	struct slot *p_slot;  in shpchp_handle_presence_change()  local
114 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_presence_change()
119 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_handle_presence_change()
120 	if (p_slot->presence_save) {  in shpchp_handle_presence_change()
125 			  slot_name(p_slot));  in shpchp_handle_presence_change()
132 			  slot_name(p_slot));  in shpchp_handle_presence_change()
136 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_presence_change()
143 	struct slot *p_slot;  in shpchp_handle_power_fault()  local
149 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in shpchp_handle_power_fault()
151 	if (!(p_slot->hpc_ops->query_power_fault(p_slot))) {  in shpchp_handle_power_fault()
156 			  slot_name(p_slot));  in shpchp_handle_power_fault()
157 		p_slot->status = 0x00;  in shpchp_handle_power_fault()
163 		ctrl_info(ctrl, "Power fault on Slot(%s)\n", slot_name(p_slot));  in shpchp_handle_power_fault()
166 		p_slot->status = 0xFF;  in shpchp_handle_power_fault()
170 	queue_interrupt_event(p_slot, event_type);  in shpchp_handle_power_fault()
178 static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,  in change_bus_speed()  argument
184 	rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed);  in change_bus_speed()
229 static int board_added(struct slot *p_slot)  in board_added()  argument
235 	struct controller *ctrl = p_slot->ctrl;  in board_added()
238 	hp_slot = p_slot->device - ctrl->slot_device_offset;  in board_added()
241 		 __func__, p_slot->device, ctrl->slot_device_offset, hp_slot);  in board_added()
244 	rc = p_slot->hpc_ops->power_on_slot(p_slot);  in board_added()
251 		rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);  in board_added()
259 		rc = p_slot->hpc_ops->slot_enable(p_slot);  in board_added()
266 	rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &asp);  in board_added()
283 	rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, asp, bsp, msp);  in board_added()
288 	rc = p_slot->hpc_ops->slot_enable(p_slot);  in board_added()
297 	ctrl_dbg(ctrl, "%s: slot status = %x\n", __func__, p_slot->status);  in board_added()
299 	if (p_slot->status == 0xFF) {  in board_added()
303 		p_slot->status = 0;  in board_added()
307 	if (shpchp_configure_device(p_slot)) {  in board_added()
309 			 pci_domain_nr(parent), p_slot->bus, p_slot->device);  in board_added()
313 	p_slot->status = 0;  in board_added()
314 	p_slot->is_a_board = 0x01;  in board_added()
315 	p_slot->pwr_save = 1;  in board_added()
317 	p_slot->hpc_ops->green_led_on(p_slot);  in board_added()
323 	rc = p_slot->hpc_ops->slot_disable(p_slot);  in board_added()
338 static int remove_board(struct slot *p_slot)  in remove_board()  argument
340 	struct controller *ctrl = p_slot->ctrl;  in remove_board()
344 	if (shpchp_unconfigure_device(p_slot))  in remove_board()
347 	hp_slot = p_slot->device - ctrl->slot_device_offset;  in remove_board()
348 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in remove_board()
353 	if (p_slot->is_a_board)  in remove_board()
354 		p_slot->status = 0x01;  in remove_board()
357 	rc = p_slot->hpc_ops->slot_disable(p_slot);  in remove_board()
364 	rc = p_slot->hpc_ops->set_attention_status(p_slot, 0);  in remove_board()
370 	p_slot->pwr_save = 0;  in remove_board()
371 	p_slot->is_a_board = 0;  in remove_board()
378 	struct slot *p_slot;  member
393 	struct slot *p_slot = info->p_slot;  in shpchp_pushbutton_thread()  local
395 	mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
396 	switch (p_slot->state) {  in shpchp_pushbutton_thread()
398 		mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
399 		shpchp_disable_slot(p_slot);  in shpchp_pushbutton_thread()
400 		mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
401 		p_slot->state = STATIC_STATE;  in shpchp_pushbutton_thread()
404 		mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
405 		if (shpchp_enable_slot(p_slot))  in shpchp_pushbutton_thread()
406 			p_slot->hpc_ops->green_led_off(p_slot);  in shpchp_pushbutton_thread()
407 		mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
408 		p_slot->state = STATIC_STATE;  in shpchp_pushbutton_thread()
413 	mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
420 	struct slot *p_slot = container_of(work, struct slot, work.work);  in shpchp_queue_pushbutton_work()  local
425 		ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",  in shpchp_queue_pushbutton_work()
429 	info->p_slot = p_slot;  in shpchp_queue_pushbutton_work()
432 	mutex_lock(&p_slot->lock);  in shpchp_queue_pushbutton_work()
433 	switch (p_slot->state) {  in shpchp_queue_pushbutton_work()
435 		p_slot->state = POWEROFF_STATE;  in shpchp_queue_pushbutton_work()
438 		p_slot->state = POWERON_STATE;  in shpchp_queue_pushbutton_work()
444 	queue_work(p_slot->wq, &info->work);  in shpchp_queue_pushbutton_work()
446 	mutex_unlock(&p_slot->lock);  in shpchp_queue_pushbutton_work()
471 static void handle_button_press_event(struct slot *p_slot)  in handle_button_press_event()  argument
474 	struct controller *ctrl = p_slot->ctrl;  in handle_button_press_event()
476 	switch (p_slot->state) {  in handle_button_press_event()
478 		p_slot->hpc_ops->get_power_status(p_slot, &getstatus);  in handle_button_press_event()
480 			p_slot->state = BLINKINGOFF_STATE;  in handle_button_press_event()
482 				  slot_name(p_slot));  in handle_button_press_event()
484 			p_slot->state = BLINKINGON_STATE;  in handle_button_press_event()
486 				  slot_name(p_slot));  in handle_button_press_event()
489 		p_slot->hpc_ops->green_led_blink(p_slot);  in handle_button_press_event()
490 		p_slot->hpc_ops->set_attention_status(p_slot, 0);  in handle_button_press_event()
492 		queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);  in handle_button_press_event()
502 			  slot_name(p_slot));  in handle_button_press_event()
503 		cancel_delayed_work(&p_slot->work);  in handle_button_press_event()
504 		if (p_slot->state == BLINKINGOFF_STATE)  in handle_button_press_event()
505 			p_slot->hpc_ops->green_led_on(p_slot);  in handle_button_press_event()
507 			p_slot->hpc_ops->green_led_off(p_slot);  in handle_button_press_event()
508 		p_slot->hpc_ops->set_attention_status(p_slot, 0);  in handle_button_press_event()
510 			  slot_name(p_slot));  in handle_button_press_event()
511 		p_slot->state = STATIC_STATE;  in handle_button_press_event()
521 			  slot_name(p_slot));  in handle_button_press_event()
522 		update_slot_info(p_slot);  in handle_button_press_event()
533 	struct slot *p_slot = info->p_slot;  in interrupt_event_handler()  local
535 	mutex_lock(&p_slot->lock);  in interrupt_event_handler()
538 		handle_button_press_event(p_slot);  in interrupt_event_handler()
541 		ctrl_dbg(p_slot->ctrl, "%s: Power fault\n", __func__);  in interrupt_event_handler()
542 		p_slot->hpc_ops->set_attention_status(p_slot, 1);  in interrupt_event_handler()
543 		p_slot->hpc_ops->green_led_off(p_slot);  in interrupt_event_handler()
546 		update_slot_info(p_slot);  in interrupt_event_handler()
549 	mutex_unlock(&p_slot->lock);  in interrupt_event_handler()
555 static int shpchp_enable_slot (struct slot *p_slot)  in shpchp_enable_slot()  argument
559 	struct controller *ctrl = p_slot->ctrl;  in shpchp_enable_slot()
562 	mutex_lock(&p_slot->ctrl->crit_sect);  in shpchp_enable_slot()
563 	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);  in shpchp_enable_slot()
565 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in shpchp_enable_slot()
568 	rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
570 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));  in shpchp_enable_slot()
573 	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);  in shpchp_enable_slot()
576 			  slot_name(p_slot));  in shpchp_enable_slot()
580 	p_slot->is_a_board = 1;  in shpchp_enable_slot()
583 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));  in shpchp_enable_slot()
584 	p_slot->hpc_ops->get_power_status(p_slot, &(p_slot->pwr_save));  in shpchp_enable_slot()
585 	ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);  in shpchp_enable_slot()
586 	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
588 	if ((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD &&  in shpchp_enable_slot()
589 	     p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458)  in shpchp_enable_slot()
590 	     && p_slot->ctrl->num_slots == 1) {  in shpchp_enable_slot()
592 		amd_pogo_errata_save_misc_reg(p_slot);  in shpchp_enable_slot()
593 		retval = board_added(p_slot);  in shpchp_enable_slot()
595 		amd_pogo_errata_restore_misc_reg(p_slot);  in shpchp_enable_slot()
597 		retval = board_added(p_slot);  in shpchp_enable_slot()
600 		p_slot->hpc_ops->get_adapter_status(p_slot,  in shpchp_enable_slot()
601 				&(p_slot->presence_save));  in shpchp_enable_slot()
602 		p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
605 	update_slot_info(p_slot);  in shpchp_enable_slot()
607 	mutex_unlock(&p_slot->ctrl->crit_sect);  in shpchp_enable_slot()
612 static int shpchp_disable_slot (struct slot *p_slot)  in shpchp_disable_slot()  argument
616 	struct controller *ctrl = p_slot->ctrl;  in shpchp_disable_slot()
618 	if (!p_slot->ctrl)  in shpchp_disable_slot()
622 	mutex_lock(&p_slot->ctrl->crit_sect);  in shpchp_disable_slot()
624 	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);  in shpchp_disable_slot()
626 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in shpchp_disable_slot()
629 	rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);  in shpchp_disable_slot()
631 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));  in shpchp_disable_slot()
634 	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);  in shpchp_disable_slot()
637 			  slot_name(p_slot));  in shpchp_disable_slot()
641 	retval = remove_board(p_slot);  in shpchp_disable_slot()
642 	update_slot_info(p_slot);  in shpchp_disable_slot()
644 	mutex_unlock(&p_slot->ctrl->crit_sect);  in shpchp_disable_slot()
648 int shpchp_sysfs_enable_slot(struct slot *p_slot)  in shpchp_sysfs_enable_slot()  argument
651 	struct controller *ctrl = p_slot->ctrl;  in shpchp_sysfs_enable_slot()
653 	mutex_lock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
654 	switch (p_slot->state) {  in shpchp_sysfs_enable_slot()
656 		cancel_delayed_work(&p_slot->work);  in shpchp_sysfs_enable_slot()
659 		p_slot->state = POWERON_STATE;  in shpchp_sysfs_enable_slot()
660 		mutex_unlock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
661 		retval = shpchp_enable_slot(p_slot);  in shpchp_sysfs_enable_slot()
662 		mutex_lock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
663 		p_slot->state = STATIC_STATE;  in shpchp_sysfs_enable_slot()
667 			  slot_name(p_slot));  in shpchp_sysfs_enable_slot()
672 			  slot_name(p_slot));  in shpchp_sysfs_enable_slot()
676 			 slot_name(p_slot));  in shpchp_sysfs_enable_slot()
679 	mutex_unlock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
684 int shpchp_sysfs_disable_slot(struct slot *p_slot)  in shpchp_sysfs_disable_slot()  argument
687 	struct controller *ctrl = p_slot->ctrl;  in shpchp_sysfs_disable_slot()
689 	mutex_lock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
690 	switch (p_slot->state) {  in shpchp_sysfs_disable_slot()
692 		cancel_delayed_work(&p_slot->work);  in shpchp_sysfs_disable_slot()
695 		p_slot->state = POWEROFF_STATE;  in shpchp_sysfs_disable_slot()
696 		mutex_unlock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
697 		retval = shpchp_disable_slot(p_slot);  in shpchp_sysfs_disable_slot()
698 		mutex_lock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
699 		p_slot->state = STATIC_STATE;  in shpchp_sysfs_disable_slot()
703 			  slot_name(p_slot));  in shpchp_sysfs_disable_slot()
708 			  slot_name(p_slot));  in shpchp_sysfs_disable_slot()
712 			 slot_name(p_slot));  in shpchp_sysfs_disable_slot()
715 	mutex_unlock(&p_slot->lock);  in shpchp_sysfs_disable_slot()