From: Inaky Perez-Gonzalez <[EMAIL PROTECTED]>
This patch enables the USB stack to recognize WUSB devices (from a
WUSB HCD) and assigns them the proper speed setting
(USB_SPEED_VARIABLE).
1. Introduce usb_hcd->wireless to mark a host controller instance as
being wireless, and thus having wireless 'fake' ports.
[discarded previous model of using a reserved bit in the port_stat
struct to do this; thanks to Alan Stern for indicating the
proper way to do it].
2. Introduce hub.c:hub_is_wusb() that tests if a hub is a WUSB root
hub (WUSB doesn't have non-root hubs).
New code being pushed to linuxuwb.org requires this patch to connect WUSB
devices.
Signed-off-by: Inaky Perez-Gonzalez <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/core/hcd.h | 1 +
drivers/usb/core/hub.c | 16 +++++++++++++++-
2 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 58c7767..fc71a08 100644
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -85,6 +85,7 @@ #define HCD_FLAG_SAW_IRQ 0x00000002
unsigned uses_new_polling:1;
unsigned poll_rh:1; /* poll for rh status? */
unsigned poll_pending:1; /* status has changed? */
+ unsigned wireless:1; /* Wireless USB HCD */
int irq; /* irq allocated */
void __iomem *regs; /* device memory/io */
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index bdf5be0..db4a9be 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1331,6 +1331,18 @@ static int hub_port_status(struct usb_hu
return ret;
}
+
+/* Returns 1 if @hub is a WUSB root hub, 0 otherwise */
+static unsigned hub_is_wusb(struct usb_hub *hub)
+{
+ struct usb_hcd *hcd;
+ if (hub->hdev->parent != NULL) /* not a root hub? */
+ return 0;
+ hcd = container_of(hub->hdev->bus, struct usb_hcd, self);
+ return hcd->wireless;
+}
+
+
#define PORT_RESET_TRIES 5
#define SET_ADDRESS_TRIES 2
#define GET_DESCRIPTOR_TRIES 2
@@ -1371,7 +1383,9 @@ static int hub_port_wait_reset(struct us
/* if we`ve finished resetting, then break out of the loop */
if (!(portstatus & USB_PORT_STAT_RESET) &&
(portstatus & USB_PORT_STAT_ENABLE)) {
- if (portstatus & USB_PORT_STAT_HIGH_SPEED)
+ if (hub_is_wusb(hub))
+ udev->speed = USB_SPEED_VARIABLE;
+ else if (portstatus & USB_PORT_STAT_HIGH_SPEED)
udev->speed = USB_SPEED_HIGH;
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
udev->speed = USB_SPEED_LOW;
--
1.4.2.1
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