USB: UHCI: Move PCI specific functions to uhci-pci.c
This patch is part of a series that extend the UHCI HCD to support non-PCI controllers. This patch moves PCI specific functions to uhci-pci.c and includes this file in uhci-hcd.c. It also renames the function uhci_init to uhci_pci_init. uhci_init/uhci_pci_init is modified so that the port-detection logic is kept in a new separate function uhci_count_ports() in uhci-hcd.c. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jan Andersson
Greg Kroah-Hartman
Родитель
e4d235d800
Коммит
c31a65f869
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@ -48,7 +48,6 @@
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#include <asm/system.h>
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#include "uhci-hcd.h"
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#include "pci-quirks.h"
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/*
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* Version Information
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@ -142,15 +141,6 @@ static void finish_reset(struct uhci_hcd *uhci)
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clear_bit(HCD_FLAG_POLL_RH, &uhci_to_hcd(uhci)->flags);
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}
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/*
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* Make sure the controller is completely inactive, unable to
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* generate interrupts or do DMA.
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*/
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static void uhci_pci_reset_hc(struct uhci_hcd *uhci)
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{
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uhci_reset_hc(to_pci_dev(uhci_dev(uhci)), uhci->io_addr);
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}
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/*
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* Last rites for a defunct/nonfunctional controller
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* or one we don't want to use any more.
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@ -166,18 +156,6 @@ static void uhci_hc_died(struct uhci_hcd *uhci)
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++uhci->frame_number;
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}
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/*
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* Initialize a controller that was newly discovered or has just been
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* resumed. In either case we can't be sure of its previous state.
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*
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* Returns: 1 if the controller was reset, 0 otherwise.
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*/
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static int uhci_pci_check_and_reset_hc(struct uhci_hcd *uhci)
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{
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return uhci_check_and_reset_hc(to_pci_dev(uhci_dev(uhci)),
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uhci->io_addr);
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}
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/*
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* Initialize a controller that was newly discovered or has lost power
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* or otherwise been reset while it was suspended. In none of these cases
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@ -189,18 +167,6 @@ static void check_and_reset_hc(struct uhci_hcd *uhci)
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finish_reset(uhci);
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}
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static void uhci_pci_configure_hc(struct uhci_hcd *uhci)
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{
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struct pci_dev *pdev = to_pci_dev(uhci_dev(uhci));
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/* Enable PIRQ */
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pci_write_config_word(pdev, USBLEGSUP, USBLEGSUP_DEFAULT);
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/* Disable platform-specific non-PME# wakeup */
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if (pdev->vendor == PCI_VENDOR_ID_INTEL)
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pci_write_config_byte(pdev, USBRES_INTEL, 0);
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}
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/*
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* Store the basic register settings needed by the controller.
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*/
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@ -221,38 +187,6 @@ static void configure_hc(struct uhci_hcd *uhci)
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uhci->configure_hc(uhci);
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}
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static int uhci_pci_resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
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{
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int port;
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switch (to_pci_dev(uhci_dev(uhci))->vendor) {
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default:
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break;
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case PCI_VENDOR_ID_GENESYS:
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/* Genesys Logic's GL880S controllers don't generate
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* resume-detect interrupts.
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*/
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return 1;
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case PCI_VENDOR_ID_INTEL:
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/* Some of Intel's USB controllers have a bug that causes
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* resume-detect interrupts if any port has an over-current
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* condition. To make matters worse, some motherboards
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* hardwire unused USB ports' over-current inputs active!
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* To prevent problems, we will not enable resume-detect
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* interrupts if any ports are OC.
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*/
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for (port = 0; port < uhci->rh_numports; ++port) {
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if (inw(uhci->io_addr + USBPORTSC1 + port * 2) &
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USBPORTSC_OC)
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return 1;
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}
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break;
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}
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return 0;
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}
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static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
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{
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/* If we have to ignore overcurrent events then almost by definition
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@ -264,28 +198,6 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
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uhci->resume_detect_interrupts_are_broken(uhci) : 0;
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}
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static int uhci_pci_global_suspend_mode_is_broken(struct uhci_hcd *uhci)
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{
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int port;
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const char *sys_info;
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static const char bad_Asus_board[] = "A7V8X";
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/* One of Asus's motherboards has a bug which causes it to
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* wake up immediately from suspend-to-RAM if any of the ports
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* are connected. In such cases we will not set EGSM.
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*/
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sys_info = dmi_get_system_info(DMI_BOARD_NAME);
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if (sys_info && !strcmp(sys_info, bad_Asus_board)) {
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for (port = 0; port < uhci->rh_numports; ++port) {
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if (inw(uhci->io_addr + USBPORTSC1 + port * 2) &
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USBPORTSC_CCS)
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return 1;
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}
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}
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return 0;
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}
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static int global_suspend_mode_is_broken(struct uhci_hcd *uhci)
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{
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return uhci->global_suspend_mode_is_broken ?
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@ -551,82 +463,6 @@ static void release_uhci(struct uhci_hcd *uhci)
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uhci->frame, uhci->frame_dma_handle);
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}
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static int uhci_init(struct usb_hcd *hcd)
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{
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struct uhci_hcd *uhci = hcd_to_uhci(hcd);
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unsigned io_size = (unsigned) hcd->rsrc_len;
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int port;
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uhci->io_addr = (unsigned long) hcd->rsrc_start;
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/* The UHCI spec says devices must have 2 ports, and goes on to say
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* they may have more but gives no way to determine how many there
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* are. However according to the UHCI spec, Bit 7 of the port
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* status and control register is always set to 1. So we try to
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* use this to our advantage. Another common failure mode when
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* a nonexistent register is addressed is to return all ones, so
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* we test for that also.
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*/
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for (port = 0; port < (io_size - USBPORTSC1) / 2; port++) {
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unsigned int portstatus;
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portstatus = inw(uhci->io_addr + USBPORTSC1 + (port * 2));
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if (!(portstatus & 0x0080) || portstatus == 0xffff)
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break;
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}
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if (debug)
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dev_info(uhci_dev(uhci), "detected %d ports\n", port);
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/* Anything greater than 7 is weird so we'll ignore it. */
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if (port > UHCI_RH_MAXCHILD) {
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dev_info(uhci_dev(uhci), "port count misdetected? "
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"forcing to 2 ports\n");
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port = 2;
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}
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uhci->rh_numports = port;
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/* Intel controllers report the OverCurrent bit active on.
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* VIA controllers report it active off, so we'll adjust the
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* bit value. (It's not standardized in the UHCI spec.)
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*/
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if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_VIA)
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uhci->oc_low = 1;
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/* HP's server management chip requires a longer port reset delay. */
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if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
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uhci->wait_for_hp = 1;
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/* Set up pointers to PCI-specific functions */
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uhci->reset_hc = uhci_pci_reset_hc;
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uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
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uhci->configure_hc = uhci_pci_configure_hc;
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uhci->resume_detect_interrupts_are_broken =
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uhci_pci_resume_detect_interrupts_are_broken;
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uhci->global_suspend_mode_is_broken =
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uhci_pci_global_suspend_mode_is_broken;
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/* Kick BIOS off this hardware and reset if the controller
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* isn't already safely quiescent.
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*/
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check_and_reset_hc(uhci);
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return 0;
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}
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/* Make sure the controller is quiescent and that we're not using it
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* any more. This is mainly for the benefit of programs which, like kexec,
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* expect the hardware to be idle: not doing DMA or generating IRQs.
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*
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* This routine may be called in a damaged or failing kernel. Hence we
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* do not acquire the spinlock before shutting down the controller.
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*/
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static void uhci_shutdown(struct pci_dev *pdev)
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{
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struct usb_hcd *hcd = pci_get_drvdata(pdev);
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uhci_hc_died(hcd_to_uhci(hcd));
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}
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/*
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* Allocate a frame list, and then setup the skeleton
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*
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@ -843,87 +679,6 @@ static int uhci_rh_resume(struct usb_hcd *hcd)
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return rc;
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}
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static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
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{
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struct uhci_hcd *uhci = hcd_to_uhci(hcd);
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struct pci_dev *pdev = to_pci_dev(uhci_dev(uhci));
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int rc = 0;
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dev_dbg(uhci_dev(uhci), "%s\n", __func__);
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spin_lock_irq(&uhci->lock);
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if (!HCD_HW_ACCESSIBLE(hcd) || uhci->dead)
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goto done_okay; /* Already suspended or dead */
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if (uhci->rh_state > UHCI_RH_SUSPENDED) {
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dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n");
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rc = -EBUSY;
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goto done;
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};
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/* All PCI host controllers are required to disable IRQ generation
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* at the source, so we must turn off PIRQ.
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*/
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pci_write_config_word(pdev, USBLEGSUP, 0);
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clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
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/* Enable platform-specific non-PME# wakeup */
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if (do_wakeup) {
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if (pdev->vendor == PCI_VENDOR_ID_INTEL)
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pci_write_config_byte(pdev, USBRES_INTEL,
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USBPORT1EN | USBPORT2EN);
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}
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done_okay:
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clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
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done:
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spin_unlock_irq(&uhci->lock);
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return rc;
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}
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static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
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{
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struct uhci_hcd *uhci = hcd_to_uhci(hcd);
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dev_dbg(uhci_dev(uhci), "%s\n", __func__);
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/* Since we aren't in D3 any more, it's safe to set this flag
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* even if the controller was dead.
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*/
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set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
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spin_lock_irq(&uhci->lock);
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/* Make sure resume from hibernation re-enumerates everything */
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if (hibernated) {
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uhci->reset_hc(uhci);
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finish_reset(uhci);
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}
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/* The firmware may have changed the controller settings during
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* a system wakeup. Check it and reconfigure to avoid problems.
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*/
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else {
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check_and_reset_hc(uhci);
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}
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configure_hc(uhci);
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/* Tell the core if the controller had to be reset */
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if (uhci->rh_state == UHCI_RH_RESET)
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usb_root_hub_lost_power(hcd->self.root_hub);
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spin_unlock_irq(&uhci->lock);
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/* If interrupts don't work and remote wakeup is enabled then
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* the suspended root hub needs to be polled.
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*/
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if (!uhci->RD_enable && hcd->self.root_hub->do_remote_wakeup)
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set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
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/* Does the root hub have a port wakeup pending? */
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usb_hcd_poll_rh_status(hcd);
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return 0;
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}
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#endif
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/* Wait until a particular device/endpoint's QH is idle, and free it */
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@ -966,62 +721,45 @@ static int uhci_hcd_get_frame_number(struct usb_hcd *hcd)
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return frame_number + delta;
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}
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/* Determines number of ports on controller */
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static int uhci_count_ports(struct usb_hcd *hcd)
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{
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struct uhci_hcd *uhci = hcd_to_uhci(hcd);
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unsigned io_size = (unsigned) hcd->rsrc_len;
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int port;
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/* The UHCI spec says devices must have 2 ports, and goes on to say
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* they may have more but gives no way to determine how many there
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* are. However according to the UHCI spec, Bit 7 of the port
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* status and control register is always set to 1. So we try to
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* use this to our advantage. Another common failure mode when
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* a nonexistent register is addressed is to return all ones, so
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* we test for that also.
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*/
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for (port = 0; port < (io_size - USBPORTSC1) / 2; port++) {
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unsigned int portstatus;
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portstatus = inw(uhci->io_addr + USBPORTSC1 + (port * 2));
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if (!(portstatus & 0x0080) || portstatus == 0xffff)
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break;
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}
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if (debug)
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dev_info(uhci_dev(uhci), "detected %d ports\n", port);
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/* Anything greater than 7 is weird so we'll ignore it. */
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if (port > UHCI_RH_MAXCHILD) {
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dev_info(uhci_dev(uhci), "port count misdetected? "
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"forcing to 2 ports\n");
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port = 2;
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}
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return port;
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}
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static const char hcd_name[] = "uhci_hcd";
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static const struct hc_driver uhci_driver = {
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.description = hcd_name,
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.product_desc = "UHCI Host Controller",
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.hcd_priv_size = sizeof(struct uhci_hcd),
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#include "uhci-pci.c"
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/* Generic hardware linkage */
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.irq = uhci_irq,
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.flags = HCD_USB11,
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/* Basic lifecycle operations */
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.reset = uhci_init,
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.start = uhci_start,
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#ifdef CONFIG_PM
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.pci_suspend = uhci_pci_suspend,
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.pci_resume = uhci_pci_resume,
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.bus_suspend = uhci_rh_suspend,
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.bus_resume = uhci_rh_resume,
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#endif
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.stop = uhci_stop,
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.urb_enqueue = uhci_urb_enqueue,
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.urb_dequeue = uhci_urb_dequeue,
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.endpoint_disable = uhci_hcd_endpoint_disable,
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.get_frame_number = uhci_hcd_get_frame_number,
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.hub_status_data = uhci_hub_status_data,
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.hub_control = uhci_hub_control,
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};
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static DEFINE_PCI_DEVICE_TABLE(uhci_pci_ids) = { {
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/* handle any USB UHCI controller */
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PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0),
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.driver_data = (unsigned long) &uhci_driver,
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}, { /* end: all zeroes */ }
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};
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MODULE_DEVICE_TABLE(pci, uhci_pci_ids);
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static struct pci_driver uhci_pci_driver = {
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.name = (char *)hcd_name,
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.id_table = uhci_pci_ids,
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.probe = usb_hcd_pci_probe,
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.remove = usb_hcd_pci_remove,
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.shutdown = uhci_shutdown,
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#ifdef CONFIG_PM_SLEEP
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.driver = {
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.pm = &usb_hcd_pci_pm_ops
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},
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#endif
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};
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static int __init uhci_hcd_init(void)
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{
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int retval = -ENOMEM;
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|
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@ -0,0 +1,301 @@
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/*
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* UHCI HCD (Host Controller Driver) PCI Bus Glue.
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*
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* Extracted from uhci-hcd.c:
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* Maintainer: Alan Stern <stern@rowland.harvard.edu>
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*
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* (C) Copyright 1999 Linus Torvalds
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* (C) Copyright 1999-2002 Johannes Erdfelt, johannes@erdfelt.com
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* (C) Copyright 1999 Randy Dunlap
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* (C) Copyright 1999 Georg Acher, acher@in.tum.de
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* (C) Copyright 1999 Deti Fliegl, deti@fliegl.de
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* (C) Copyright 1999 Thomas Sailer, sailer@ife.ee.ethz.ch
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* (C) Copyright 1999 Roman Weissgaerber, weissg@vienna.at
|
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* (C) Copyright 2000 Yggdrasil Computing, Inc. (port of new PCI interface
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* support from usb-ohci.c by Adam Richter, adam@yggdrasil.com).
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* (C) Copyright 1999 Gregory P. Smith (from usb-ohci.c)
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* (C) Copyright 2004-2007 Alan Stern, stern@rowland.harvard.edu
|
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*/
|
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|
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#include "pci-quirks.h"
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|
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/*
|
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* Make sure the controller is completely inactive, unable to
|
||||
* generate interrupts or do DMA.
|
||||
*/
|
||||
static void uhci_pci_reset_hc(struct uhci_hcd *uhci)
|
||||
{
|
||||
uhci_reset_hc(to_pci_dev(uhci_dev(uhci)), uhci->io_addr);
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialize a controller that was newly discovered or has just been
|
||||
* resumed. In either case we can't be sure of its previous state.
|
||||
*
|
||||
* Returns: 1 if the controller was reset, 0 otherwise.
|
||||
*/
|
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static int uhci_pci_check_and_reset_hc(struct uhci_hcd *uhci)
|
||||
{
|
||||
return uhci_check_and_reset_hc(to_pci_dev(uhci_dev(uhci)),
|
||||
uhci->io_addr);
|
||||
}
|
||||
|
||||
/*
|
||||
* Store the basic register settings needed by the controller.
|
||||
* This function is called at the end of configure_hc in uhci-hcd.c.
|
||||
*/
|
||||
static void uhci_pci_configure_hc(struct uhci_hcd *uhci)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(uhci_dev(uhci));
|
||||
|
||||
/* Enable PIRQ */
|
||||
pci_write_config_word(pdev, USBLEGSUP, USBLEGSUP_DEFAULT);
|
||||
|
||||
/* Disable platform-specific non-PME# wakeup */
|
||||
if (pdev->vendor == PCI_VENDOR_ID_INTEL)
|
||||
pci_write_config_byte(pdev, USBRES_INTEL, 0);
|
||||
}
|
||||
|
||||
static int uhci_pci_resume_detect_interrupts_are_broken(struct uhci_hcd *uhci)
|
||||
{
|
||||
int port;
|
||||
|
||||
switch (to_pci_dev(uhci_dev(uhci))->vendor) {
|
||||
default:
|
||||
break;
|
||||
|
||||
case PCI_VENDOR_ID_GENESYS:
|
||||
/* Genesys Logic's GL880S controllers don't generate
|
||||
* resume-detect interrupts.
|
||||
*/
|
||||
return 1;
|
||||
|
||||
case PCI_VENDOR_ID_INTEL:
|
||||
/* Some of Intel's USB controllers have a bug that causes
|
||||
* resume-detect interrupts if any port has an over-current
|
||||
* condition. To make matters worse, some motherboards
|
||||
* hardwire unused USB ports' over-current inputs active!
|
||||
* To prevent problems, we will not enable resume-detect
|
||||
* interrupts if any ports are OC.
|
||||
*/
|
||||
for (port = 0; port < uhci->rh_numports; ++port) {
|
||||
if (inw(uhci->io_addr + USBPORTSC1 + port * 2) &
|
||||
USBPORTSC_OC)
|
||||
return 1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int uhci_pci_global_suspend_mode_is_broken(struct uhci_hcd *uhci)
|
||||
{
|
||||
int port;
|
||||
const char *sys_info;
|
||||
static const char bad_Asus_board[] = "A7V8X";
|
||||
|
||||
/* One of Asus's motherboards has a bug which causes it to
|
||||
* wake up immediately from suspend-to-RAM if any of the ports
|
||||
* are connected. In such cases we will not set EGSM.
|
||||
*/
|
||||
sys_info = dmi_get_system_info(DMI_BOARD_NAME);
|
||||
if (sys_info && !strcmp(sys_info, bad_Asus_board)) {
|
||||
for (port = 0; port < uhci->rh_numports; ++port) {
|
||||
if (inw(uhci->io_addr + USBPORTSC1 + port * 2) &
|
||||
USBPORTSC_CCS)
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
/* Make sure the controller is quiescent and that we're not using it
|
||||
* any more. This is mainly for the benefit of programs which, like kexec,
|
||||
* expect the hardware to be idle: not doing DMA or generating IRQs.
|
||||
*
|
||||
* This routine may be called in a damaged or failing kernel. Hence we
|
||||
* do not acquire the spinlock before shutting down the controller.
|
||||
*/
|
||||
static void uhci_shutdown(struct pci_dev *pdev)
|
||||
{
|
||||
struct usb_hcd *hcd = pci_get_drvdata(pdev);
|
||||
|
||||
uhci_hc_died(hcd_to_uhci(hcd));
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
|
||||
{
|
||||
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
|
||||
struct pci_dev *pdev = to_pci_dev(uhci_dev(uhci));
|
||||
int rc = 0;
|
||||
|
||||
dev_dbg(uhci_dev(uhci), "%s\n", __func__);
|
||||
|
||||
spin_lock_irq(&uhci->lock);
|
||||
if (!HCD_HW_ACCESSIBLE(hcd) || uhci->dead)
|
||||
goto done_okay; /* Already suspended or dead */
|
||||
|
||||
if (uhci->rh_state > UHCI_RH_SUSPENDED) {
|
||||
dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n");
|
||||
rc = -EBUSY;
|
||||
goto done;
|
||||
};
|
||||
|
||||
/* All PCI host controllers are required to disable IRQ generation
|
||||
* at the source, so we must turn off PIRQ.
|
||||
*/
|
||||
pci_write_config_word(pdev, USBLEGSUP, 0);
|
||||
clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
|
||||
|
||||
/* Enable platform-specific non-PME# wakeup */
|
||||
if (do_wakeup) {
|
||||
if (pdev->vendor == PCI_VENDOR_ID_INTEL)
|
||||
pci_write_config_byte(pdev, USBRES_INTEL,
|
||||
USBPORT1EN | USBPORT2EN);
|
||||
}
|
||||
|
||||
done_okay:
|
||||
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
|
||||
done:
|
||||
spin_unlock_irq(&uhci->lock);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
|
||||
{
|
||||
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
|
||||
|
||||
dev_dbg(uhci_dev(uhci), "%s\n", __func__);
|
||||
|
||||
/* Since we aren't in D3 any more, it's safe to set this flag
|
||||
* even if the controller was dead.
|
||||
*/
|
||||
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
|
||||
|
||||
spin_lock_irq(&uhci->lock);
|
||||
|
||||
/* Make sure resume from hibernation re-enumerates everything */
|
||||
if (hibernated) {
|
||||
uhci->reset_hc(uhci);
|
||||
finish_reset(uhci);
|
||||
}
|
||||
|
||||
/* The firmware may have changed the controller settings during
|
||||
* a system wakeup. Check it and reconfigure to avoid problems.
|
||||
*/
|
||||
else {
|
||||
check_and_reset_hc(uhci);
|
||||
}
|
||||
configure_hc(uhci);
|
||||
|
||||
/* Tell the core if the controller had to be reset */
|
||||
if (uhci->rh_state == UHCI_RH_RESET)
|
||||
usb_root_hub_lost_power(hcd->self.root_hub);
|
||||
|
||||
spin_unlock_irq(&uhci->lock);
|
||||
|
||||
/* If interrupts don't work and remote wakeup is enabled then
|
||||
* the suspended root hub needs to be polled.
|
||||
*/
|
||||
if (!uhci->RD_enable && hcd->self.root_hub->do_remote_wakeup)
|
||||
set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
|
||||
|
||||
/* Does the root hub have a port wakeup pending? */
|
||||
usb_hcd_poll_rh_status(hcd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
static const struct hc_driver uhci_driver = {
|
||||
.description = hcd_name,
|
||||
.product_desc = "UHCI Host Controller",
|
||||
.hcd_priv_size = sizeof(struct uhci_hcd),
|
||||
|
||||
/* Generic hardware linkage */
|
||||
.irq = uhci_irq,
|
||||
.flags = HCD_USB11,
|
||||
|
||||
/* Basic lifecycle operations */
|
||||
.reset = uhci_pci_init,
|
||||
.start = uhci_start,
|
||||
#ifdef CONFIG_PM
|
||||
.pci_suspend = uhci_pci_suspend,
|
||||
.pci_resume = uhci_pci_resume,
|
||||
.bus_suspend = uhci_rh_suspend,
|
||||
.bus_resume = uhci_rh_resume,
|
||||
#endif
|
||||
.stop = uhci_stop,
|
||||
|
||||
.urb_enqueue = uhci_urb_enqueue,
|
||||
.urb_dequeue = uhci_urb_dequeue,
|
||||
|
||||
.endpoint_disable = uhci_hcd_endpoint_disable,
|
||||
.get_frame_number = uhci_hcd_get_frame_number,
|
||||
|
||||
.hub_status_data = uhci_hub_status_data,
|
||||
.hub_control = uhci_hub_control,
|
||||
};
|
||||
|
||||
static DEFINE_PCI_DEVICE_TABLE(uhci_pci_ids) = { {
|
||||
/* handle any USB UHCI controller */
|
||||
PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0),
|
||||
.driver_data = (unsigned long) &uhci_driver,
|
||||
}, { /* end: all zeroes */ }
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pci, uhci_pci_ids);
|
||||
|
||||
static struct pci_driver uhci_pci_driver = {
|
||||
.name = (char *)hcd_name,
|
||||
.id_table = uhci_pci_ids,
|
||||
|
||||
.probe = usb_hcd_pci_probe,
|
||||
.remove = usb_hcd_pci_remove,
|
||||
.shutdown = uhci_shutdown,
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
.driver = {
|
||||
.pm = &usb_hcd_pci_pm_ops
|
||||
},
|
||||
#endif
|
||||
};
|
||||
Загрузка…
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