From a8e5177583e975fc1f7c621c93956f494df9b979 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 20 May 2008 16:58:11 -0400 Subject: USB: EHCI: fix up root-hub TT mess This patch (as1095) cleans up the HCD glue and several of the EHCI bus-glue files. The ehci->is_tdi_rh_tt flag is redundant, since it means the same thing as the hcd->has_tt flag, so it is removed and the other flag used in its place. Some of the bus-glue files didn't get the relinquish_port method added to their hc_driver structures. Although that routine currently doesn't do anything for controllers with an integrated TT, in the future it might. So the patch adds it where it is missing. Lastly, some of the bus-glue files have erroneous entries for their hc_driver's suspend and resume methods. These method pointers are specific to PCI and shouldn't be used otherwise. (The patch also includes an invisible whitespace fix.) Signed-off-by: Alan Stern Acked-by: David Brownell --- drivers/usb/host/ehci.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/usb/host/ehci.h') diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index bf92d209a1a..3cb48230834 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -112,7 +112,6 @@ struct ehci_hcd { /* one per controller */ u32 command; /* SILICON QUIRKS */ - unsigned is_tdi_rh_tt:1; /* TDI roothub with TT */ unsigned no_selective_suspend:1; unsigned has_fsl_port_bug:1; /* FreeScale */ unsigned big_endian_mmio:1; @@ -678,7 +677,7 @@ struct ehci_fstn { * needed (mostly in root hub code). */ -#define ehci_is_TDI(e) ((e)->is_tdi_rh_tt) +#define ehci_is_TDI(e) (ehci_to_hcd(e)->has_tt) /* Returns the speed of a device attached to a port on the root hub. */ static inline unsigned int -- cgit v1.2.3-70-g09d2 From d1f114d12bb4db3147e1b1342ae31083c5a79c84 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 20 May 2008 16:58:58 -0400 Subject: USB: EHCI: fix remote-wakeup regression This patch (as1097) fixes a bug in the remote-wakeup handling in ehci-hcd. The driver currently does not keep track of whether the change-suspend feature is enabled for each port; the feature is automatically reset the first time it is read. But recent changes to the hub driver require that the feature be read at least twice in order to work properly. A bit-vector is added for storing the change-suspend feature values. Signed-off-by: Alan Stern Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-hub.c | 6 ++++-- drivers/usb/host/ehci.h | 2 ++ 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/usb/host/ehci.h') diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index d613dc9e9c0..740835bb857 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -609,7 +609,7 @@ static int ehci_hub_control ( } break; case USB_PORT_FEAT_C_SUSPEND: - /* we auto-clear this feature */ + clear_bit(wIndex, &ehci->port_c_suspend); break; case USB_PORT_FEAT_POWER: if (HCS_PPC (ehci->hcs_params)) @@ -688,7 +688,7 @@ static int ehci_hub_control ( /* resume completed? */ else if (time_after_eq(jiffies, ehci->reset_done[wIndex])) { - status |= 1 << USB_PORT_FEAT_C_SUSPEND; + set_bit(wIndex, &ehci->port_c_suspend); ehci->reset_done[wIndex] = 0; /* stop resume signaling */ @@ -765,6 +765,8 @@ static int ehci_hub_control ( status |= 1 << USB_PORT_FEAT_RESET; if (temp & PORT_POWER) status |= 1 << USB_PORT_FEAT_POWER; + if (test_bit(wIndex, &ehci->port_c_suspend)) + status |= 1 << USB_PORT_FEAT_C_SUSPEND; #ifndef VERBOSE_DEBUG if (status & ~0xffff) /* only if wPortChange is interesting */ diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 3cb48230834..35a03095757 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -97,6 +97,8 @@ struct ehci_hcd { /* one per controller */ dedicated to the companion controller */ unsigned long owned_ports; /* which ports are owned by the companion during a bus suspend */ + unsigned long port_c_suspend; /* which ports have + the change-suspend feature turned on */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ -- cgit v1.2.3-70-g09d2