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: Jan Andersson <jan@xxxxxxxxxxx>
---
drivers/usb/host/uhci-hcd.c | 12 ++++++++++++
drivers/usb/host/uhci-hcd.h | 4 ++++
drivers/usb/host/uhci-hub.c | 6 ++----
3 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 83344d6..0b7e6e1 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -546,6 +546,18 @@ 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(hcd->self.controller)->vendor == PCI_VENDOR_ID_VIA)
+ uhci->oc_low = 1;
+
+ /* HP's server management chip requires
+ * a longer 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.
*/
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 49bf279..f86db61 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -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;
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 6d59c0f..7541826 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -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) */
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
