usb/core/hcd-pci.c

10 #include <linux/usb/hcd.h>
41 typedef void (*companion_fn)(struct pci_dev *pdev, struct usb_hcd *hcd,
45 static void for_each_companion(struct pci_dev *pdev, struct usb_hcd *hcd,
74 		fn(pdev, hcd, companion, companion_hcd);
84 static void ehci_pre_add(struct pci_dev *pdev, struct usb_hcd *hcd,
101 static void ehci_post_add(struct pci_dev *pdev, struct usb_hcd *hcd,
110 			companion_hcd->self.hs_companion = &hcd->self;
122 static void non_ehci_add(struct pci_dev *pdev, struct usb_hcd *hcd,
128 		hcd->self.hs_companion = &companion_hcd->self;
133 static void ehci_remove(struct pci_dev *pdev, struct usb_hcd *hcd,
143 static void ehci_wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd,
174 	struct usb_hcd		*hcd;
189 	 * make sure irq setup is not touched for xhci in generic hcd code
203 	hcd = usb_create_hcd(driver, &dev->dev, pci_name(dev));
204 	if (!hcd) {
209 	hcd->amd_resume_bug = usb_hcd_amd_resume_bug(dev, driver);
213 		hcd->rsrc_start = pci_resource_start(dev, 0);
214 		hcd->rsrc_len = pci_resource_len(dev, 0);
215 		if (!devm_request_mem_region(&dev->dev, hcd->rsrc_start,
216 				hcd->rsrc_len, driver->description)) {
221 		hcd->regs = devm_ioremap(&dev->dev, hcd->rsrc_start,
222 				hcd->rsrc_len);
223 		if (hcd->regs == NULL) {
238 			hcd->rsrc_start = pci_resource_start(dev, region);
239 			hcd->rsrc_len = pci_resource_len(dev, region);
240 			if (devm_request_region(&dev->dev, hcd->rsrc_start,
241 					hcd->rsrc_len, driver->description))
256 		dev_set_drvdata(&dev->dev, hcd);
257 		for_each_companion(dev, hcd, ehci_pre_add);
258 		retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED);
261 		for_each_companion(dev, hcd, ehci_post_add);
265 		dev_set_drvdata(&dev->dev, hcd);
266 		retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED);
270 			for_each_companion(dev, hcd, non_ehci_add);
276 	device_wakeup_enable(hcd->self.controller);
283 	usb_put_hcd(hcd);
312 	struct usb_hcd		*hcd;
315 	hcd = pci_get_drvdata(dev);
316 	if (!hcd)
319 	hcd_driver_flags = hcd->driver->flags;
329 	usb_hcd_irq(0, hcd);
335 		for_each_companion(dev, hcd, ehci_remove);
336 		usb_remove_hcd(hcd);
342 		hcd->self.hs_companion = NULL;
343 		usb_remove_hcd(hcd);
347 	usb_put_hcd(hcd);
360 	struct usb_hcd		*hcd;
362 	hcd = pci_get_drvdata(dev);
363 	if (!hcd)
366 	if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) &&
367 			hcd->driver->shutdown) {
368 		hcd->driver->shutdown(hcd);
369 		if (usb_hcd_is_primary_hcd(hcd) && hcd->irq > 0)
370 			free_irq(hcd->irq, hcd);
401 	struct usb_hcd		*hcd = dev_get_drvdata(dev);
403 	if (HCD_RH_RUNNING(hcd)) {
407 	if (hcd->shared_hcd) {
408 		hcd = hcd->shared_hcd;
409 		if (HCD_RH_RUNNING(hcd)) {
420 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);
435 	if (hcd->driver->pci_suspend && !HCD_DEAD(hcd)) {
439 		if (do_wakeup && HCD_WAKEUP_PENDING(hcd))
441 		if (do_wakeup && hcd->shared_hcd &&
442 				HCD_WAKEUP_PENDING(hcd->shared_hcd))
444 		retval = hcd->driver->pci_suspend(hcd, do_wakeup);
445 		suspend_report_result(dev, hcd->driver->pci_suspend, retval);
448 		if ((retval == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) ||
449 				(retval == 0 && do_wakeup && hcd->shared_hcd &&
450 				 HCD_WAKEUP_PENDING(hcd->shared_hcd))) {
451 			if (hcd->driver->pci_resume)
452 				hcd->driver->pci_resume(hcd, msg);
463 	if (!hcd->msix_enabled)
478 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);
481 	if (HCD_RH_RUNNING(hcd) ||
482 			(hcd->shared_hcd &&
483 			 HCD_RH_RUNNING(hcd->shared_hcd))) {
496 	if (hcd->driver->pci_resume && !HCD_DEAD(hcd)) {
504 			for_each_companion(pci_dev, hcd,
507 		retval = hcd->driver->pci_resume(hcd, msg);
510 			usb_hc_died(hcd);
526 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);
539 	if (HCD_DEAD(hcd))
565 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);
567 	if (hcd->driver->pci_poweroff_late && !HCD_DEAD(hcd))
568 		return hcd->driver->pci_poweroff_late(hcd, device_may_wakeup(dev));