diff options
Diffstat (limited to 'payloads/libpayload')
| -rw-r--r-- | payloads/libpayload/drivers/usb/generic_hub.c | 6 | ||||
| -rw-r--r-- | payloads/libpayload/drivers/usb/quirks.c | 24 | ||||
| -rw-r--r-- | payloads/libpayload/drivers/usb/xhci.c | 4 | ||||
| -rw-r--r-- | payloads/libpayload/include/usb/usb.h | 2 |
4 files changed, 34 insertions, 2 deletions
diff --git a/payloads/libpayload/drivers/usb/generic_hub.c b/payloads/libpayload/drivers/usb/generic_hub.c index 9d444ee792..7263400840 100644 --- a/payloads/libpayload/drivers/usb/generic_hub.c +++ b/payloads/libpayload/drivers/usb/generic_hub.c @@ -218,9 +218,11 @@ generic_hub_poll(usbdev_t *const dev) if (!hub) return; - if (hub->ops->hub_status_changed && - hub->ops->hub_status_changed(dev) != 1) + if (!(dev->quirks & USB_QUIRK_HUB_NO_USBSTS_PCD) && + hub->ops->hub_status_changed && + hub->ops->hub_status_changed(dev) != 1) { return; + } int port; for (port = 1; port <= hub->num_ports; ++port) { diff --git a/payloads/libpayload/drivers/usb/quirks.c b/payloads/libpayload/drivers/usb/quirks.c index 0a3514933c..d5be0e6cda 100644 --- a/payloads/libpayload/drivers/usb/quirks.c +++ b/payloads/libpayload/drivers/usb/quirks.c @@ -59,6 +59,30 @@ usb_quirks_t usb_quirks[] = { */ }; +#if CONFIG(LP_USB_PCI) +usb_quirks_t pci_quirks[] = { + /* QEMU XHCI root hub does not implement port change detect */ + { 0x1b36, 0x000d, USB_QUIRK_HUB_NO_USBSTS_PCD, 0 }, +}; + +u32 pci_quirk_check(pcidev_t controller) +{ + int i; + u16 vendor = pci_read_config16(controller, REG_VENDOR_ID); + u16 device = pci_read_config16(controller, REG_DEVICE_ID); + + for (i = 0; i < ARRAY_SIZE(pci_quirks); i++) { + if ((pci_quirks[i].vendor == vendor) && + (pci_quirks[i].device == device)) { + printf("PCI quirks enabled: %08x\n", pci_quirks[i].quirks); + return pci_quirks[i].quirks; + } + } + + return USB_QUIRK_NONE; +} +#endif + u32 usb_quirk_check(u16 vendor, u16 device) { int i; diff --git a/payloads/libpayload/drivers/usb/xhci.c b/payloads/libpayload/drivers/usb/xhci.c index ef1d73ff68..21af579f4c 100644 --- a/payloads/libpayload/drivers/usb/xhci.c +++ b/payloads/libpayload/drivers/usb/xhci.c @@ -314,9 +314,13 @@ xhci_pci_init (pcidev_t addr) controller = xhci_init((unsigned long)reg_addr); if (controller) { + xhci_t *xhci = controller->instance; controller->pcidev = addr; xhci_switch_ppt_ports(addr); + + /* Set up any quirks for controller root hub */ + xhci->roothub->quirks = pci_quirk_check(addr); } return controller; diff --git a/payloads/libpayload/include/usb/usb.h b/payloads/libpayload/include/usb/usb.h index 5d27f7cbc6..328e8839fc 100644 --- a/payloads/libpayload/include/usb/usb.h +++ b/payloads/libpayload/include/usb/usb.h @@ -318,6 +318,7 @@ void usb_detach_device(hci_t *controller, int devno); int usb_attach_device(hci_t *controller, int hubaddress, int port, usb_speed speed); +u32 pci_quirk_check(pcidev_t controller); u32 usb_quirk_check(u16 vendor, u16 device); int usb_interface_check(u16 vendor, u16 device); @@ -330,6 +331,7 @@ int usb_interface_check(u16 vendor, u16 device); #define USB_QUIRK_MSC_FORCE_TRANS_CBI_I (1 << 6) #define USB_QUIRK_MSC_NO_TEST_UNIT_READY (1 << 7) #define USB_QUIRK_MSC_SHORT_INQUIRY (1 << 8) +#define USB_QUIRK_HUB_NO_USBSTS_PCD (1 << 9) #define USB_QUIRK_TEST (1 << 31) #define USB_QUIRK_NONE 0 |