pci/hotplug/cpci_hotplug_core.c

52 static int enable_slot(struct hotplug_slot *slot);
53 static int disable_slot(struct hotplug_slot *slot);
54 static int set_attention_status(struct hotplug_slot *slot, u8 value);
55 static int get_power_status(struct hotplug_slot *slot, u8 *value);
56 static int get_attention_status(struct hotplug_slot *slot, u8 *value);
57 static int get_adapter_status(struct hotplug_slot *slot, u8 *value);
58 static int get_latch_status(struct hotplug_slot *slot, u8 *value);
73 	struct slot *slot = to_slot(hotplug_slot);
76 	dbg("%s - physical_slot = %s", __func__, slot_name(slot));
79 		retval = controller->ops->set_power(slot, 1);
86 	struct slot *slot = to_slot(hotplug_slot);
89 	dbg("%s - physical_slot = %s", __func__, slot_name(slot));
94 	dbg("%s - unconfiguring slot %s", __func__, slot_name(slot));
95 	retval = cpci_unconfigure_slot(slot);
97 		err("%s - could not unconfigure slot %s",
98 		    __func__, slot_name(slot));
101 	dbg("%s - finished unconfiguring slot %s", __func__, slot_name(slot));
104 	if (cpci_clear_ext(slot)) {
105 		err("%s - could not clear EXT for slot %s",
106 		    __func__, slot_name(slot));
110 	cpci_led_on(slot);
113 		retval = controller->ops->set_power(slot, 0);
118 	slot->adapter_status = 0;
120 	if (slot->extracting) {
121 		slot->extracting = 0;
130 cpci_get_power_status(struct slot *slot)
135 		power = controller->ops->get_power(slot);
142 	struct slot *slot = to_slot(hotplug_slot);
144 	*value = cpci_get_power_status(slot);
151 	struct slot *slot = to_slot(hotplug_slot);
153 	*value = cpci_get_attention_status(slot);
166 	struct slot *slot = to_slot(hotplug_slot);
168 	*value = slot->adapter_status;
175 	struct slot *slot = to_slot(hotplug_slot);
177 	*value = slot->latch_status;
181 static void release_slot(struct slot *slot)
183 	pci_dev_put(slot->dev);
184 	kfree(slot);
192 	struct slot *slot;
201 	 * Create a structure for each slot, and register that slot
205 		slot = kzalloc(sizeof(struct slot), GFP_KERNEL);
206 		if (!slot) {
211 		slot->bus = bus;
212 		slot->number = i;
213 		slot->devfn = PCI_DEVFN(i, 0);
217 		slot->hotplug_slot.ops = &cpci_hotplug_slot_ops;
219 		dbg("registering slot %s", name);
220 		status = pci_hp_register(&slot->hotplug_slot, bus, i, name);
225 		dbg("slot registered with name: %s", slot_name(slot));
227 		/* Add slot to our internal list */
229 		list_add(&slot->slot_list, &slot_list);
235 	kfree(slot);
244 	struct slot *slot;
245 	struct slot *tmp;
253 	list_for_each_entry_safe(slot, tmp, &slot_list, slot_list) {
254 		if (slot->bus == bus) {
255 			list_del(&slot->slot_list);
258 			dbg("deregistering slot %s", slot_name(slot));
259 			pci_hp_deregister(&slot->hotplug_slot);
260 			release_slot(slot);
297 	struct slot *slot;
306 	list_for_each_entry(slot, &slot_list, slot_list) {
307 		dbg("%s - looking at slot %s", __func__, slot_name(slot));
308 		if (clear_ins && cpci_check_and_clear_ins(slot))
309 			dbg("%s - cleared INS for slot %s",
310 			    __func__, slot_name(slot));
311 		dev = pci_get_slot(slot->bus, PCI_DEVFN(slot->number, 0));
313 			slot->adapter_status = 1;
314 			slot->latch_status = 1;
315 			slot->dev = dev;
326 	struct slot *slot;
338 	list_for_each_entry(slot, &slot_list, slot_list) {
339 		dbg("%s - looking at slot %s", __func__, slot_name(slot));
340 		if (cpci_check_and_clear_ins(slot)) {
345 			if (slot->dev) {
346 				warn("slot %s already inserted",
347 				     slot_name(slot));
353 			dbg("%s - slot %s inserted", __func__, slot_name(slot));
356 			hs_csr = cpci_get_hs_csr(slot);
357 			dbg("%s - slot %s HS_CSR (1) = %04x",
358 			    __func__, slot_name(slot), hs_csr);
361 			dbg("%s - configuring slot %s",
362 			    __func__, slot_name(slot));
363 			if (cpci_configure_slot(slot)) {
364 				err("%s - could not configure slot %s",
365 				    __func__, slot_name(slot));
368 			dbg("%s - finished configuring slot %s",
369 			    __func__, slot_name(slot));
372 			hs_csr = cpci_get_hs_csr(slot);
373 			dbg("%s - slot %s HS_CSR (2) = %04x",
374 			    __func__, slot_name(slot), hs_csr);
376 			slot->latch_status = 1;
377 			slot->adapter_status = 1;
379 			cpci_led_off(slot);
382 			hs_csr = cpci_get_hs_csr(slot);
383 			dbg("%s - slot %s HS_CSR (3) = %04x",
384 			    __func__, slot_name(slot), hs_csr);
387 		} else if (cpci_check_ext(slot)) {
389 			dbg("%s - slot %s extracted",
390 			    __func__, slot_name(slot));
393 			hs_csr = cpci_get_hs_csr(slot);
394 			dbg("%s - slot %s HS_CSR = %04x",
395 			    __func__, slot_name(slot), hs_csr);
397 			if (!slot->extracting) {
398 				slot->latch_status = 0;
399 				slot->extracting = 1;
403 		} else if (slot->extracting) {
404 			hs_csr = cpci_get_hs_csr(slot);
410 				err("card in slot %s was improperly removed",
411 				    slot_name(slot));
412 				slot->adapter_status = 0;
413 				slot->extracting = 0;
549 	struct slot *slot;
550 	struct slot *tmp;
559 	list_for_each_entry_safe(slot, tmp, &slot_list, slot_list) {
560 		list_del(&slot->slot_list);
561 		pci_hp_deregister(&slot->hotplug_slot);
562 		release_slot(slot);