Commit dfeca7a8 authored by Jan Andersson's avatar Jan Andersson Committed by Greg Kroah-Hartman
Browse files

USB: UHCI: Remove PCI dependencies from uhci-hub 



This patch is part of a series that extend the UHCI HCD to support
non-PCI host controllers.

uhci-hub.c contained two PCI vendor checks for silicon quirks. Move
these checks into uhci-hcd.c and use bits in uhci_hcd structure to
mark that we need to use the quirks.

This patch is followed by other patches that will remove PCI
dependencies from uhci-hcd.c as well.

Signed-off-by: default avatarJan Andersson <jan@gaisler.com>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent ea437f39

drivers/usb/host/uhci-hcd.c

+11 −0
Original line number Diff line number Diff line
@@ -546,6 +546,17 @@ static int uhci_init(struct usb_hcd *hcd) 
	}

	uhci->rh_numports = port;



	/* 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;



	/* Kick BIOS off this hardware and reset if the controller

	 * isn't already safely quiescent.

	 */

drivers/usb/host/uhci-hcd.h

+4 −0
Original line number Diff line number Diff line
@@ -415,6 +415,10 @@ struct uhci_hcd { 


	struct timer_list fsbr_timer;		/* For turning off FBSR */



	/* Silicon quirks */

	unsigned int oc_low:1;			/* OverCurrent bit active low */

	unsigned int wait_for_hp:1;		/* Wait for HP port reset */



	/* Support for port suspend/resume/reset */

	unsigned long port_c_suspend;		/* Bit-arrays of ports */

	unsigned long resuming_ports;

drivers/usb/host/uhci-hub.c

+2 −4
Original line number Diff line number Diff line
@@ -149,8 +149,7 @@ static void uhci_check_ports(struct uhci_hcd *uhci) 


				/* HP's server management chip requires

				 * a longer delay. */

				if (to_pci_dev(uhci_dev(uhci))->vendor ==

						PCI_VENDOR_ID_HP)

				if (uhci->wait_for_hp)

					wait_for_HP(port_addr);



				/* If the port was enabled before, turning
@@ -266,8 +265,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, 
		 * 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(hcd->self.controller)->vendor ==

				PCI_VENDOR_ID_VIA)

		if (uhci->oc_low)

			status ^= USBPORTSC_OC;



		/* UHCI doesn't support C_RESET (always false) */

CRA Git | Maintained and supported by SUSTech CRA and CCSE