static int uhci_grlib_init(struct usb_hcd *hcd) { struct uhci_hcd *uhci = hcd_to_uhci(hcd); /* * Probe to determine the endianness of the controller. * We know that bit 7 of the PORTSC1 register is always set * and bit 15 is always clear. If uhci_readw() yields a value * with bit 7 (0x80) turned on then the current little-endian * setting is correct. Otherwise we assume the value was * byte-swapped; hence the register interface and presumably * also the descriptors are big-endian. */ if (!(uhci_readw(uhci, USBPORTSC1) & 0x80)) { uhci->big_endian_mmio = 1; uhci->big_endian_desc = 1; } uhci->rh_numports = uhci_count_ports(hcd); /* Set up pointers to to generic functions */ uhci->reset_hc = uhci_generic_reset_hc; uhci->check_and_reset_hc = uhci_generic_check_and_reset_hc; /* No special actions need to be taken for the functions below */ uhci->configure_hc = NULL; uhci->resume_detect_interrupts_are_broken = NULL; uhci->global_suspend_mode_is_broken = NULL; /* Reset if the controller isn't already safely quiescent. */ check_and_reset_hc(uhci); return 0; }
static int uhci_pci_init(struct usb_hcd *hcd) { struct uhci_hcd *uhci = hcd_to_uhci(hcd); uhci->io_addr = (unsigned long) hcd->rsrc_start; uhci->rh_numports = uhci_count_ports(hcd); /* Intel controllers report the OverCurrent bit active on. * VIA controllers report it active off, so we'll adjust the * bit value. (It's not standardized in the UHCI spec.) */ if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_VIA) uhci->oc_low = 1; /* HP's server management chip requires a longer port reset delay. */ if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP) uhci->wait_for_hp = 1; /* Set up pointers to PCI-specific functions */ uhci->reset_hc = uhci_pci_reset_hc; uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc; uhci->configure_hc = uhci_pci_configure_hc; uhci->resume_detect_interrupts_are_broken = uhci_pci_resume_detect_interrupts_are_broken; uhci->global_suspend_mode_is_broken = uhci_pci_global_suspend_mode_is_broken; /* Kick BIOS off this hardware and reset if the controller * isn't already safely quiescent. */ check_and_reset_hc(uhci); return 0; }
static int uhci_platform_init(struct usb_hcd *hcd) { struct uhci_hcd *uhci = hcd_to_uhci(hcd); uhci->rh_numports = uhci_count_ports(hcd); /* Set up pointers to to generic functions */ uhci->reset_hc = uhci_generic_reset_hc; uhci->check_and_reset_hc = uhci_generic_check_and_reset_hc; /* No special actions need to be taken for the functions below */ uhci->configure_hc = NULL; uhci->resume_detect_interrupts_are_broken = NULL; uhci->global_suspend_mode_is_broken = NULL; /* Reset if the controller isn't already safely quiescent. */ check_and_reset_hc(uhci); return 0; }