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 	shpchp_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 	shpchp_get_adapter_status(p_slot, &p_slot->presence_save);  in shpchp_handle_switch_change()
79 	shpchp_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 	shpchp_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 (!(shpchp_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 = shpchp_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 = shpchp_power_on_slot(p_slot);  in board_added()
251 		rc = shpchp_set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);  in board_added()
259 		rc = shpchp_slot_enable(p_slot);  in board_added()
266 	rc = shpchp_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 = shpchp_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()
302 		p_slot->status = 0;  in board_added()
306 	if (shpchp_configure_device(p_slot)) {  in board_added()
308 			 pci_domain_nr(parent), p_slot->bus, p_slot->device);  in board_added()
312 	p_slot->status = 0;  in board_added()
313 	p_slot->is_a_board = 0x01;  in board_added()
314 	p_slot->pwr_save = 1;  in board_added()
316 	shpchp_green_led_on(p_slot);  in board_added()
322 	rc = shpchp_slot_disable(p_slot);  in board_added()
337 static int remove_board(struct slot *p_slot)  in remove_board()  argument
339 	struct controller *ctrl = p_slot->ctrl;  in remove_board()
343 	shpchp_unconfigure_device(p_slot);  in remove_board()
345 	hp_slot = p_slot->device - ctrl->slot_device_offset;  in remove_board()
346 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);  in remove_board()
351 	if (p_slot->is_a_board)  in remove_board()
352 		p_slot->status = 0x01;  in remove_board()
355 	rc = shpchp_slot_disable(p_slot);  in remove_board()
362 	rc = shpchp_set_attention_status(p_slot, 0);  in remove_board()
368 	p_slot->pwr_save = 0;  in remove_board()
369 	p_slot->is_a_board = 0;  in remove_board()
376 	struct slot *p_slot;  member
391 	struct slot *p_slot = info->p_slot;  in shpchp_pushbutton_thread()  local
393 	mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
394 	switch (p_slot->state) {  in shpchp_pushbutton_thread()
396 		mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
397 		shpchp_disable_slot(p_slot);  in shpchp_pushbutton_thread()
398 		mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
399 		p_slot->state = STATIC_STATE;  in shpchp_pushbutton_thread()
402 		mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
403 		if (shpchp_enable_slot(p_slot))  in shpchp_pushbutton_thread()
404 			shpchp_green_led_off(p_slot);  in shpchp_pushbutton_thread()
405 		mutex_lock(&p_slot->lock);  in shpchp_pushbutton_thread()
406 		p_slot->state = STATIC_STATE;  in shpchp_pushbutton_thread()
411 	mutex_unlock(&p_slot->lock);  in shpchp_pushbutton_thread()
418 	struct slot *p_slot = container_of(work, struct slot, work.work);  in shpchp_queue_pushbutton_work()  local
423 		ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",  in shpchp_queue_pushbutton_work()
427 	info->p_slot = p_slot;  in shpchp_queue_pushbutton_work()
430 	mutex_lock(&p_slot->lock);  in shpchp_queue_pushbutton_work()
431 	switch (p_slot->state) {  in shpchp_queue_pushbutton_work()
433 		p_slot->state = POWEROFF_STATE;  in shpchp_queue_pushbutton_work()
436 		p_slot->state = POWERON_STATE;  in shpchp_queue_pushbutton_work()
442 	queue_work(p_slot->wq, &info->work);  in shpchp_queue_pushbutton_work()
444 	mutex_unlock(&p_slot->lock);  in shpchp_queue_pushbutton_work()
458 static void handle_button_press_event(struct slot *p_slot)  in handle_button_press_event()  argument
461 	struct controller *ctrl = p_slot->ctrl;  in handle_button_press_event()
463 	switch (p_slot->state) {  in handle_button_press_event()
465 		shpchp_get_power_status(p_slot, &getstatus);  in handle_button_press_event()
467 			p_slot->state = BLINKINGOFF_STATE;  in handle_button_press_event()
469 				  slot_name(p_slot));  in handle_button_press_event()
471 			p_slot->state = BLINKINGON_STATE;  in handle_button_press_event()
473 				  slot_name(p_slot));  in handle_button_press_event()
476 		shpchp_green_led_blink(p_slot);  in handle_button_press_event()
477 		shpchp_set_attention_status(p_slot, 0);  in handle_button_press_event()
479 		queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);  in handle_button_press_event()
489 			  slot_name(p_slot));  in handle_button_press_event()
490 		cancel_delayed_work(&p_slot->work);  in handle_button_press_event()
491 		if (p_slot->state == BLINKINGOFF_STATE)  in handle_button_press_event()
492 			shpchp_green_led_on(p_slot);  in handle_button_press_event()
494 			shpchp_green_led_off(p_slot);  in handle_button_press_event()
495 		shpchp_set_attention_status(p_slot, 0);  in handle_button_press_event()
497 			  slot_name(p_slot));  in handle_button_press_event()
498 		p_slot->state = STATIC_STATE;  in handle_button_press_event()
508 			  slot_name(p_slot));  in handle_button_press_event()
509 		update_slot_info(p_slot);  in handle_button_press_event()
520 	struct slot *p_slot = info->p_slot;  in interrupt_event_handler()  local
522 	mutex_lock(&p_slot->lock);  in interrupt_event_handler()
525 		handle_button_press_event(p_slot);  in interrupt_event_handler()
528 		ctrl_dbg(p_slot->ctrl, "%s: Power fault\n", __func__);  in interrupt_event_handler()
529 		shpchp_set_attention_status(p_slot, 1);  in interrupt_event_handler()
530 		shpchp_green_led_off(p_slot);  in interrupt_event_handler()
533 		update_slot_info(p_slot);  in interrupt_event_handler()
536 	mutex_unlock(&p_slot->lock);  in interrupt_event_handler()
542 static int shpchp_enable_slot (struct slot *p_slot)  in shpchp_enable_slot()  argument
546 	struct controller *ctrl = p_slot->ctrl;  in shpchp_enable_slot()
549 	mutex_lock(&p_slot->ctrl->crit_sect);  in shpchp_enable_slot()
550 	rc = shpchp_get_adapter_status(p_slot, &getstatus);  in shpchp_enable_slot()
552 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in shpchp_enable_slot()
555 	rc = shpchp_get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
557 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));  in shpchp_enable_slot()
560 	rc = shpchp_get_power_status(p_slot, &getstatus);  in shpchp_enable_slot()
563 			  slot_name(p_slot));  in shpchp_enable_slot()
567 	p_slot->is_a_board = 1;  in shpchp_enable_slot()
570 	shpchp_get_adapter_status(p_slot, &p_slot->presence_save);  in shpchp_enable_slot()
571 	shpchp_get_power_status(p_slot, &p_slot->pwr_save);  in shpchp_enable_slot()
572 	ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);  in shpchp_enable_slot()
573 	shpchp_get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
575 	if ((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD &&  in shpchp_enable_slot()
576 	     p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458)  in shpchp_enable_slot()
577 	     && p_slot->ctrl->num_slots == 1) {  in shpchp_enable_slot()
579 		amd_pogo_errata_save_misc_reg(p_slot);  in shpchp_enable_slot()
580 		retval = board_added(p_slot);  in shpchp_enable_slot()
582 		amd_pogo_errata_restore_misc_reg(p_slot);  in shpchp_enable_slot()
584 		retval = board_added(p_slot);  in shpchp_enable_slot()
587 		shpchp_get_adapter_status(p_slot, &p_slot->presence_save);  in shpchp_enable_slot()
588 		shpchp_get_latch_status(p_slot, &getstatus);  in shpchp_enable_slot()
591 	update_slot_info(p_slot);  in shpchp_enable_slot()
593 	mutex_unlock(&p_slot->ctrl->crit_sect);  in shpchp_enable_slot()
598 static int shpchp_disable_slot (struct slot *p_slot)  in shpchp_disable_slot()  argument
602 	struct controller *ctrl = p_slot->ctrl;  in shpchp_disable_slot()
604 	if (!p_slot->ctrl)  in shpchp_disable_slot()
608 	mutex_lock(&p_slot->ctrl->crit_sect);  in shpchp_disable_slot()
610 	rc = shpchp_get_adapter_status(p_slot, &getstatus);  in shpchp_disable_slot()
612 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));  in shpchp_disable_slot()
615 	rc = shpchp_get_latch_status(p_slot, &getstatus);  in shpchp_disable_slot()
617 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));  in shpchp_disable_slot()
620 	rc = shpchp_get_power_status(p_slot, &getstatus);  in shpchp_disable_slot()
623 			  slot_name(p_slot));  in shpchp_disable_slot()
627 	retval = remove_board(p_slot);  in shpchp_disable_slot()
628 	update_slot_info(p_slot);  in shpchp_disable_slot()
630 	mutex_unlock(&p_slot->ctrl->crit_sect);  in shpchp_disable_slot()
634 int shpchp_sysfs_enable_slot(struct slot *p_slot)  in shpchp_sysfs_enable_slot()  argument
637 	struct controller *ctrl = p_slot->ctrl;  in shpchp_sysfs_enable_slot()
639 	mutex_lock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
640 	switch (p_slot->state) {  in shpchp_sysfs_enable_slot()
642 		cancel_delayed_work(&p_slot->work);  in shpchp_sysfs_enable_slot()
645 		p_slot->state = POWERON_STATE;  in shpchp_sysfs_enable_slot()
646 		mutex_unlock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
647 		retval = shpchp_enable_slot(p_slot);  in shpchp_sysfs_enable_slot()
648 		mutex_lock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
649 		p_slot->state = STATIC_STATE;  in shpchp_sysfs_enable_slot()
653 			  slot_name(p_slot));  in shpchp_sysfs_enable_slot()
658 			  slot_name(p_slot));  in shpchp_sysfs_enable_slot()
662 			 slot_name(p_slot));  in shpchp_sysfs_enable_slot()
665 	mutex_unlock(&p_slot->lock);  in shpchp_sysfs_enable_slot()
670 int shpchp_sysfs_disable_slot(struct slot *p_slot)  in shpchp_sysfs_disable_slot()  argument
673 	struct controller *ctrl = p_slot->ctrl;  in shpchp_sysfs_disable_slot()
675 	mutex_lock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
676 	switch (p_slot->state) {  in shpchp_sysfs_disable_slot()
678 		cancel_delayed_work(&p_slot->work);  in shpchp_sysfs_disable_slot()
681 		p_slot->state = POWEROFF_STATE;  in shpchp_sysfs_disable_slot()
682 		mutex_unlock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
683 		retval = shpchp_disable_slot(p_slot);  in shpchp_sysfs_disable_slot()
684 		mutex_lock(&p_slot->lock);  in shpchp_sysfs_disable_slot()
685 		p_slot->state = STATIC_STATE;  in shpchp_sysfs_disable_slot()
689 			  slot_name(p_slot));  in shpchp_sysfs_disable_slot()
694 			  slot_name(p_slot));  in shpchp_sysfs_disable_slot()
698 			 slot_name(p_slot));  in shpchp_sysfs_disable_slot()
701 	mutex_unlock(&p_slot->lock);  in shpchp_sysfs_disable_slot()