10 #include <linux/usb/hcd.h>
42 typedef void (*companion_fn)(struct pci_dev *pdev, struct usb_hcd *hcd,
46 static void for_each_companion(struct pci_dev *pdev, struct usb_hcd *hcd,  in for_each_companion()  argument
75 		fn(pdev, hcd, companion, companion_hcd);  in for_each_companion()
85 static void ehci_pre_add(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_pre_add()  argument
102 static void ehci_post_add(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_post_add()  argument
111 			companion_hcd->self.hs_companion = &hcd->self;  in ehci_post_add()
123 static void non_ehci_add(struct pci_dev *pdev, struct usb_hcd *hcd,  in non_ehci_add()  argument
129 		hcd->self.hs_companion = &companion_hcd->self;  in non_ehci_add()
134 static void ehci_remove(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_remove()  argument
144 static void ehci_wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_wait_for_companions()  argument
161  * @id: pci hotplug id connecting controller to HCD framework
166  * then invokes the start() method for the HCD associated with it
169  * Store this function in the HCD's struct pci_driver as probe().
176 	struct usb_hcd		*hcd;  in usb_hcd_pci_probe()  local
194 	 * make sure irq setup is not touched for xhci in generic hcd code  in usb_hcd_pci_probe()
208 	hcd = usb_create_hcd(driver, &dev->dev, pci_name(dev));  in usb_hcd_pci_probe()
209 	if (!hcd) {  in usb_hcd_pci_probe()
214 	hcd->amd_resume_bug = (usb_hcd_amd_remote_wakeup_quirk(dev) &&  in usb_hcd_pci_probe()
219 		hcd->rsrc_start = pci_resource_start(dev, 0);  in usb_hcd_pci_probe()
220 		hcd->rsrc_len = pci_resource_len(dev, 0);  in usb_hcd_pci_probe()
221 		if (!devm_request_mem_region(&dev->dev, hcd->rsrc_start,  in usb_hcd_pci_probe()
222 				hcd->rsrc_len, driver->description)) {  in usb_hcd_pci_probe()
227 		hcd->regs = devm_ioremap(&dev->dev, hcd->rsrc_start,  in usb_hcd_pci_probe()
228 				hcd->rsrc_len);  in usb_hcd_pci_probe()
229 		if (hcd->regs == NULL) {  in usb_hcd_pci_probe()
244 			hcd->rsrc_start = pci_resource_start(dev, region);  in usb_hcd_pci_probe()
245 			hcd->rsrc_len = pci_resource_len(dev, region);  in usb_hcd_pci_probe()
246 			if (devm_request_region(&dev->dev, hcd->rsrc_start,  in usb_hcd_pci_probe()
247 					hcd->rsrc_len, driver->description))  in usb_hcd_pci_probe()
262 		dev_set_drvdata(&dev->dev, hcd);  in usb_hcd_pci_probe()
263 		for_each_companion(dev, hcd, ehci_pre_add);  in usb_hcd_pci_probe()
264 		retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED);  in usb_hcd_pci_probe()
267 		for_each_companion(dev, hcd, ehci_post_add);  in usb_hcd_pci_probe()
271 		dev_set_drvdata(&dev->dev, hcd);  in usb_hcd_pci_probe()
272 		retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED);  in usb_hcd_pci_probe()
276 			for_each_companion(dev, hcd, non_ehci_add);  in usb_hcd_pci_probe()
282 	device_wakeup_enable(hcd->self.controller);  in usb_hcd_pci_probe()
289 	usb_put_hcd(hcd);  in usb_hcd_pci_probe()
310  * the HCD's stop() method.  It is always called from a thread
313  * Store this function in the HCD's struct pci_driver as remove().
317 	struct usb_hcd		*hcd;  in usb_hcd_pci_remove()  local
320 	hcd = pci_get_drvdata(dev);  in usb_hcd_pci_remove()
321 	if (!hcd)  in usb_hcd_pci_remove()
324 	hcd_driver_flags = hcd->driver->flags;  in usb_hcd_pci_remove()
334 	usb_hcd_irq(0, hcd);  in usb_hcd_pci_remove()
340 		for_each_companion(dev, hcd, ehci_remove);  in usb_hcd_pci_remove()
341 		usb_remove_hcd(hcd);  in usb_hcd_pci_remove()
347 		hcd->self.hs_companion = NULL;  in usb_hcd_pci_remove()
348 		usb_remove_hcd(hcd);  in usb_hcd_pci_remove()
352 	usb_put_hcd(hcd);  in usb_hcd_pci_remove()
365 	struct usb_hcd		*hcd;  in usb_hcd_pci_shutdown()  local
367 	hcd = pci_get_drvdata(dev);  in usb_hcd_pci_shutdown()
368 	if (!hcd)  in usb_hcd_pci_shutdown()
371 	if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) &&  in usb_hcd_pci_shutdown()
372 			hcd->driver->shutdown) {  in usb_hcd_pci_shutdown()
373 		hcd->driver->shutdown(hcd);  in usb_hcd_pci_shutdown()
374 		if (usb_hcd_is_primary_hcd(hcd) && hcd->irq > 0)  in usb_hcd_pci_shutdown()
375 			free_irq(hcd->irq, hcd);  in usb_hcd_pci_shutdown()
406 	struct usb_hcd		*hcd = dev_get_drvdata(dev);  in check_root_hub_suspended()  local
408 	if (HCD_RH_RUNNING(hcd)) {  in check_root_hub_suspended()
412 	if (hcd->shared_hcd) {  in check_root_hub_suspended()
413 		hcd = hcd->shared_hcd;  in check_root_hub_suspended()
414 		if (HCD_RH_RUNNING(hcd)) {  in check_root_hub_suspended()
425 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in suspend_common()  local
437 	if (hcd->driver->pci_suspend && !HCD_DEAD(hcd)) {  in suspend_common()
439 		 * pending and it would cause the HCD to wake up anyway.  in suspend_common()
441 		if (do_wakeup && HCD_WAKEUP_PENDING(hcd))  in suspend_common()
443 		if (do_wakeup && hcd->shared_hcd &&  in suspend_common()
444 				HCD_WAKEUP_PENDING(hcd->shared_hcd))  in suspend_common()
446 		retval = hcd->driver->pci_suspend(hcd, do_wakeup);  in suspend_common()
447 		suspend_report_result(hcd->driver->pci_suspend, retval);  in suspend_common()
450 		if ((retval == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) ||  in suspend_common()
451 				(retval == 0 && do_wakeup && hcd->shared_hcd &&  in suspend_common()
452 				 HCD_WAKEUP_PENDING(hcd->shared_hcd))) {  in suspend_common()
453 			if (hcd->driver->pci_resume)  in suspend_common()
454 				hcd->driver->pci_resume(hcd, false);  in suspend_common()
465 	if (!hcd->msix_enabled)  in suspend_common()
480 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in resume_common()  local
483 	if (HCD_RH_RUNNING(hcd) ||  in resume_common()
484 			(hcd->shared_hcd &&  in resume_common()
485 			 HCD_RH_RUNNING(hcd->shared_hcd))) {  in resume_common()
498 	if (hcd->driver->pci_resume && !HCD_DEAD(hcd)) {  in resume_common()
506 			for_each_companion(pci_dev, hcd,  in resume_common()
509 		retval = hcd->driver->pci_resume(hcd,  in resume_common()
513 			usb_hc_died(hcd);  in resume_common()
529 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in hcd_pci_suspend_noirq()  local
542 	if (HCD_DEAD(hcd))  in hcd_pci_suspend_noirq()