summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/usb/core
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@linux.intel.com>2017-03-08 23:13:28 -0800
committerYunhong Jiang <yunhong.jiang@linux.intel.com>2017-03-08 23:36:15 -0800
commit52f993b8e89487ec9ee15a7fb4979e0f09a45b27 (patch)
treed65304486afe0bea4a311c783c0d72791c8c0aa2 /kernel/drivers/usb/core
parentc189ccac5702322ed843fe17057035b7222a59b6 (diff)
Upgrade to 4.4.50-rt62
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it to 4.4.50-rt62. The command to achieve it is: a) Clone a git repo from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git b) Get the diff between this two changesets: git diff 640eca2901f3435e616157b11379d3223a44b391 705619beeea1b0b48219a683fd1a901a86fdaf5e where the two commits are: [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 640eca2901f3435e616157b11379d3223a44b391 640eca2901f3 v4.4.6-rt14 localversion-rt [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 705619beeea1b0b48219a683fd1a901a86fdaf5e 705619beeea1 Linux 4.4.50-rt62 localversion-rt c) One patch has been backported thus revert the patch before applying. filterdiff -p1 -x scripts/package/Makefile ~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run Upstream status: backport Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01 Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/drivers/usb/core')
-rw-r--r--kernel/drivers/usb/core/config.c107
-rw-r--r--kernel/drivers/usb/core/devices.c10
-rw-r--r--kernel/drivers/usb/core/devio.c25
-rw-r--r--kernel/drivers/usb/core/driver.c46
-rw-r--r--kernel/drivers/usb/core/hcd-pci.c11
-rw-r--r--kernel/drivers/usb/core/hcd.c6
-rw-r--r--kernel/drivers/usb/core/hub.c207
-rw-r--r--kernel/drivers/usb/core/quirks.c30
-rw-r--r--kernel/drivers/usb/core/urb.c3
-rw-r--r--kernel/drivers/usb/core/usb.h2
10 files changed, 268 insertions, 179 deletions
diff --git a/kernel/drivers/usb/core/config.c b/kernel/drivers/usb/core/config.c
index 5050760f5..ac30a051a 100644
--- a/kernel/drivers/usb/core/config.c
+++ b/kernel/drivers/usb/core/config.c
@@ -142,6 +142,31 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
}
}
+static const unsigned short low_speed_maxpacket_maxes[4] = {
+ [USB_ENDPOINT_XFER_CONTROL] = 8,
+ [USB_ENDPOINT_XFER_ISOC] = 0,
+ [USB_ENDPOINT_XFER_BULK] = 0,
+ [USB_ENDPOINT_XFER_INT] = 8,
+};
+static const unsigned short full_speed_maxpacket_maxes[4] = {
+ [USB_ENDPOINT_XFER_CONTROL] = 64,
+ [USB_ENDPOINT_XFER_ISOC] = 1023,
+ [USB_ENDPOINT_XFER_BULK] = 64,
+ [USB_ENDPOINT_XFER_INT] = 64,
+};
+static const unsigned short high_speed_maxpacket_maxes[4] = {
+ [USB_ENDPOINT_XFER_CONTROL] = 64,
+ [USB_ENDPOINT_XFER_ISOC] = 1024,
+ [USB_ENDPOINT_XFER_BULK] = 512,
+ [USB_ENDPOINT_XFER_INT] = 1024,
+};
+static const unsigned short super_speed_maxpacket_maxes[4] = {
+ [USB_ENDPOINT_XFER_CONTROL] = 512,
+ [USB_ENDPOINT_XFER_ISOC] = 1024,
+ [USB_ENDPOINT_XFER_BULK] = 1024,
+ [USB_ENDPOINT_XFER_INT] = 1024,
+};
+
static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
int asnum, struct usb_host_interface *ifp, int num_ep,
unsigned char *buffer, int size)
@@ -150,6 +175,8 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
struct usb_endpoint_descriptor *d;
struct usb_host_endpoint *endpoint;
int n, i, j, retval;
+ unsigned int maxp;
+ const unsigned short *maxpacket_maxes;
d = (struct usb_endpoint_descriptor *) buffer;
buffer += d->bLength;
@@ -178,28 +205,43 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
if (ifp->desc.bNumEndpoints >= num_ep)
goto skip_to_next_endpoint_or_interface_descriptor;
+ /* Check for duplicate endpoint addresses */
+ for (i = 0; i < ifp->desc.bNumEndpoints; ++i) {
+ if (ifp->endpoint[i].desc.bEndpointAddress ==
+ d->bEndpointAddress) {
+ dev_warn(ddev, "config %d interface %d altsetting %d has a duplicate endpoint with address 0x%X, skipping\n",
+ cfgno, inum, asnum, d->bEndpointAddress);
+ goto skip_to_next_endpoint_or_interface_descriptor;
+ }
+ }
+
endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints];
++ifp->desc.bNumEndpoints;
memcpy(&endpoint->desc, d, n);
INIT_LIST_HEAD(&endpoint->urb_list);
- /* Fix up bInterval values outside the legal range. Use 32 ms if no
- * proper value can be guessed. */
+ /*
+ * Fix up bInterval values outside the legal range.
+ * Use 10 or 8 ms if no proper value can be guessed.
+ */
i = 0; /* i = min, j = max, n = default */
j = 255;
if (usb_endpoint_xfer_int(d)) {
i = 1;
switch (to_usb_device(ddev)->speed) {
+ case USB_SPEED_SUPER_PLUS:
case USB_SPEED_SUPER:
case USB_SPEED_HIGH:
- /* Many device manufacturers are using full-speed
+ /*
+ * Many device manufacturers are using full-speed
* bInterval values in high-speed interrupt endpoint
- * descriptors. Try to fix those and fall back to a
- * 32 ms default value otherwise. */
+ * descriptors. Try to fix those and fall back to an
+ * 8-ms default value otherwise.
+ */
n = fls(d->bInterval*8);
if (n == 0)
- n = 9; /* 32 ms = 2^(9-1) uframes */
+ n = 7; /* 8 ms = 2^(7-1) uframes */
j = 16;
/*
@@ -214,10 +256,12 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
}
break;
default: /* USB_SPEED_FULL or _LOW */
- /* For low-speed, 10 ms is the official minimum.
+ /*
+ * For low-speed, 10 ms is the official minimum.
* But some "overclocked" devices might want faster
- * polling so we'll allow it. */
- n = 32;
+ * polling so we'll allow it.
+ */
+ n = 10;
break;
}
} else if (usb_endpoint_xfer_isoc(d)) {
@@ -225,10 +269,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
j = 16;
switch (to_usb_device(ddev)->speed) {
case USB_SPEED_HIGH:
- n = 9; /* 32 ms = 2^(9-1) uframes */
+ n = 7; /* 8 ms = 2^(7-1) uframes */
break;
default: /* USB_SPEED_FULL */
- n = 6; /* 32 ms = 2^(6-1) frames */
+ n = 4; /* 8 ms = 2^(4-1) frames */
break;
}
}
@@ -256,6 +300,42 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
endpoint->desc.wMaxPacketSize = cpu_to_le16(8);
}
+ /* Validate the wMaxPacketSize field */
+ maxp = usb_endpoint_maxp(&endpoint->desc);
+
+ /* Find the highest legal maxpacket size for this endpoint */
+ i = 0; /* additional transactions per microframe */
+ switch (to_usb_device(ddev)->speed) {
+ case USB_SPEED_LOW:
+ maxpacket_maxes = low_speed_maxpacket_maxes;
+ break;
+ case USB_SPEED_FULL:
+ maxpacket_maxes = full_speed_maxpacket_maxes;
+ break;
+ case USB_SPEED_HIGH:
+ /* Bits 12..11 are allowed only for HS periodic endpoints */
+ if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) {
+ i = maxp & (BIT(12) | BIT(11));
+ maxp &= ~i;
+ }
+ /* fallthrough */
+ default:
+ maxpacket_maxes = high_speed_maxpacket_maxes;
+ break;
+ case USB_SPEED_SUPER:
+ case USB_SPEED_SUPER_PLUS:
+ maxpacket_maxes = super_speed_maxpacket_maxes;
+ break;
+ }
+ j = maxpacket_maxes[usb_endpoint_type(&endpoint->desc)];
+
+ if (maxp > j) {
+ dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid maxpacket %d, setting to %d\n",
+ cfgno, inum, asnum, d->bEndpointAddress, maxp, j);
+ maxp = j;
+ endpoint->desc.wMaxPacketSize = cpu_to_le16(i | maxp);
+ }
+
/*
* Some buggy high speed devices have bulk endpoints using
* maxpacket sizes other than 512. High speed HCDs may not
@@ -263,9 +343,6 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
*/
if (to_usb_device(ddev)->speed == USB_SPEED_HIGH
&& usb_endpoint_xfer_bulk(d)) {
- unsigned maxp;
-
- maxp = usb_endpoint_maxp(&endpoint->desc) & 0x07ff;
if (maxp != 512)
dev_warn(ddev, "config %d interface %d altsetting %d "
"bulk endpoint 0x%X has invalid maxpacket %d\n",
@@ -274,7 +351,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
}
/* Parse a possible SuperSpeed endpoint companion descriptor */
- if (to_usb_device(ddev)->speed == USB_SPEED_SUPER)
+ if (to_usb_device(ddev)->speed >= USB_SPEED_SUPER)
usb_parse_ss_endpoint_companion(ddev, cfgno,
inum, asnum, endpoint, buffer, size);
diff --git a/kernel/drivers/usb/core/devices.c b/kernel/drivers/usb/core/devices.c
index 2a3bbdf7e..332ed277a 100644
--- a/kernel/drivers/usb/core/devices.c
+++ b/kernel/drivers/usb/core/devices.c
@@ -221,7 +221,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
break;
case USB_ENDPOINT_XFER_INT:
type = "Int.";
- if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER)
+ if (speed == USB_SPEED_HIGH || speed >= USB_SPEED_SUPER)
interval = 1 << (desc->bInterval - 1);
else
interval = desc->bInterval;
@@ -230,7 +230,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
return start;
}
interval *= (speed == USB_SPEED_HIGH ||
- speed == USB_SPEED_SUPER) ? 125 : 1000;
+ speed >= USB_SPEED_SUPER) ? 125 : 1000;
if (interval % 1000)
unit = 'u';
else {
@@ -322,7 +322,7 @@ static char *usb_dump_config_descriptor(char *start, char *end,
if (start > end)
return start;
- if (speed == USB_SPEED_SUPER)
+ if (speed >= USB_SPEED_SUPER)
mul = 8;
else
mul = 2;
@@ -534,6 +534,8 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
speed = "480"; break;
case USB_SPEED_SUPER:
speed = "5000"; break;
+ case USB_SPEED_SUPER_PLUS:
+ speed = "10000"; break;
default:
speed = "??";
}
@@ -553,7 +555,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
/* super/high speed reserves 80%, full/low reserves 90% */
if (usbdev->speed == USB_SPEED_HIGH ||
- usbdev->speed == USB_SPEED_SUPER)
+ usbdev->speed >= USB_SPEED_SUPER)
max = 800;
else
max = FRAME_TIME_MAX_USECS_ALLOC;
diff --git a/kernel/drivers/usb/core/devio.c b/kernel/drivers/usb/core/devio.c
index 38ae877c4..f5c92d904 100644
--- a/kernel/drivers/usb/core/devio.c
+++ b/kernel/drivers/usb/core/devio.c
@@ -1203,10 +1203,11 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg)
static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg)
{
- struct usbdevfs_connectinfo ci = {
- .devnum = ps->dev->devnum,
- .slow = ps->dev->speed == USB_SPEED_LOW
- };
+ struct usbdevfs_connectinfo ci;
+
+ memset(&ci, 0, sizeof(ci));
+ ci.devnum = ps->dev->devnum;
+ ci.slow = ps->dev->speed == USB_SPEED_LOW;
if (copy_to_user(arg, &ci, sizeof(ci)))
return -EFAULT;
@@ -1529,11 +1530,17 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
as->urb->start_frame = uurb->start_frame;
as->urb->number_of_packets = number_of_packets;
as->urb->stream_id = stream_id;
- if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
- ps->dev->speed == USB_SPEED_HIGH)
- as->urb->interval = 1 << min(15, ep->desc.bInterval - 1);
- else
- as->urb->interval = ep->desc.bInterval;
+
+ if (ep->desc.bInterval) {
+ if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
+ ps->dev->speed == USB_SPEED_HIGH ||
+ ps->dev->speed >= USB_SPEED_SUPER)
+ as->urb->interval = 1 <<
+ min(15, ep->desc.bInterval - 1);
+ else
+ as->urb->interval = ep->desc.bInterval;
+ }
+
as->urb->context = as;
as->urb->complete = async_completed;
for (totlen = u = 0; u < number_of_packets; u++) {
diff --git a/kernel/drivers/usb/core/driver.c b/kernel/drivers/usb/core/driver.c
index 56593a9a8..dadd1e8df 100644
--- a/kernel/drivers/usb/core/driver.c
+++ b/kernel/drivers/usb/core/driver.c
@@ -284,7 +284,7 @@ static int usb_probe_interface(struct device *dev)
struct usb_device *udev = interface_to_usbdev(intf);
const struct usb_device_id *id;
int error = -ENODEV;
- int lpm_disable_error;
+ int lpm_disable_error = -ENODEV;
dev_dbg(dev, "%s\n", __func__);
@@ -336,12 +336,14 @@ static int usb_probe_interface(struct device *dev)
* setting during probe, that should also be fine. usb_set_interface()
* will attempt to disable LPM, and fail if it can't disable it.
*/
- lpm_disable_error = usb_unlocked_disable_lpm(udev);
- if (lpm_disable_error && driver->disable_hub_initiated_lpm) {
- dev_err(&intf->dev, "%s Failed to disable LPM for driver %s\n.",
- __func__, driver->name);
- error = lpm_disable_error;
- goto err;
+ if (driver->disable_hub_initiated_lpm) {
+ lpm_disable_error = usb_unlocked_disable_lpm(udev);
+ if (lpm_disable_error) {
+ dev_err(&intf->dev, "%s Failed to disable LPM for driver %s\n.",
+ __func__, driver->name);
+ error = lpm_disable_error;
+ goto err;
+ }
}
/* Carry out a deferred switch to altsetting 0 */
@@ -391,7 +393,8 @@ static int usb_unbind_interface(struct device *dev)
struct usb_interface *intf = to_usb_interface(dev);
struct usb_host_endpoint *ep, **eps = NULL;
struct usb_device *udev;
- int i, j, error, r, lpm_disable_error;
+ int i, j, error, r;
+ int lpm_disable_error = -ENODEV;
intf->condition = USB_INTERFACE_UNBINDING;
@@ -399,12 +402,13 @@ static int usb_unbind_interface(struct device *dev)
udev = interface_to_usbdev(intf);
error = usb_autoresume_device(udev);
- /* Hub-initiated LPM policy may change, so attempt to disable LPM until
+ /* If hub-initiated LPM policy may change, attempt to disable LPM until
* the driver is unbound. If LPM isn't disabled, that's fine because it
* wouldn't be enabled unless all the bound interfaces supported
* hub-initiated LPM.
*/
- lpm_disable_error = usb_unlocked_disable_lpm(udev);
+ if (driver->disable_hub_initiated_lpm)
+ lpm_disable_error = usb_unlocked_disable_lpm(udev);
/*
* Terminate all URBs for this interface unless the driver
@@ -502,11 +506,15 @@ static int usb_unbind_interface(struct device *dev)
int usb_driver_claim_interface(struct usb_driver *driver,
struct usb_interface *iface, void *priv)
{
- struct device *dev = &iface->dev;
+ struct device *dev;
struct usb_device *udev;
int retval = 0;
- int lpm_disable_error;
+ int lpm_disable_error = -ENODEV;
+ if (!iface)
+ return -ENODEV;
+
+ dev = &iface->dev;
if (dev->driver)
return -EBUSY;
@@ -522,12 +530,14 @@ int usb_driver_claim_interface(struct usb_driver *driver,
iface->condition = USB_INTERFACE_BOUND;
- /* Disable LPM until this driver is bound. */
- lpm_disable_error = usb_unlocked_disable_lpm(udev);
- if (lpm_disable_error && driver->disable_hub_initiated_lpm) {
- dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.",
- __func__, driver->name);
- return -ENOMEM;
+ /* See the comment about disabling LPM in usb_probe_interface(). */
+ if (driver->disable_hub_initiated_lpm) {
+ lpm_disable_error = usb_unlocked_disable_lpm(udev);
+ if (lpm_disable_error) {
+ dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.",
+ __func__, driver->name);
+ return -ENOMEM;
+ }
}
/* Claimed interfaces are initially inactive (suspended) and
diff --git a/kernel/drivers/usb/core/hcd-pci.c b/kernel/drivers/usb/core/hcd-pci.c
index 9eb1cff28..40378487e 100644
--- a/kernel/drivers/usb/core/hcd-pci.c
+++ b/kernel/drivers/usb/core/hcd-pci.c
@@ -74,6 +74,15 @@ static void for_each_companion(struct pci_dev *pdev, struct usb_hcd *hcd,
if (companion->bus != pdev->bus ||
PCI_SLOT(companion->devfn) != slot)
continue;
+
+ /*
+ * Companion device should be either UHCI,OHCI or EHCI host
+ * controller, otherwise skip.
+ */
+ if (companion->class != CL_UHCI && companion->class != CL_OHCI &&
+ companion->class != CL_EHCI)
+ continue;
+
companion_hcd = pci_get_drvdata(companion);
if (!companion_hcd || !companion_hcd->self.root_hub)
continue;
@@ -197,7 +206,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
* The xHCI driver has its own irq management
* make sure irq setup is not touched for xhci in generic hcd code
*/
- if ((driver->flags & HCD_MASK) != HCD_USB3) {
+ if ((driver->flags & HCD_MASK) < HCD_USB3) {
if (!dev->irq) {
dev_err(&dev->dev,
"Found HC with no IRQ. Check BIOS/PCI %s setup!\n",
diff --git a/kernel/drivers/usb/core/hcd.c b/kernel/drivers/usb/core/hcd.c
index a8f2f5bf2..5fc9a1472 100644
--- a/kernel/drivers/usb/core/hcd.c
+++ b/kernel/drivers/usb/core/hcd.c
@@ -1078,7 +1078,7 @@ static int register_root_hub(struct usb_hcd *hcd)
retval = usb_get_bos_descriptor(usb_dev);
if (!retval) {
usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev);
- } else if (usb_dev->speed == USB_SPEED_SUPER) {
+ } else if (usb_dev->speed >= USB_SPEED_SUPER) {
mutex_unlock(&usb_bus_list_lock);
dev_dbg(parent_dev, "can't read %s bos descriptor %d\n",
dev_name(&usb_dev->dev), retval);
@@ -2112,7 +2112,7 @@ int usb_alloc_streams(struct usb_interface *interface,
hcd = bus_to_hcd(dev->bus);
if (!hcd->driver->alloc_streams || !hcd->driver->free_streams)
return -EINVAL;
- if (dev->speed != USB_SPEED_SUPER)
+ if (dev->speed < USB_SPEED_SUPER)
return -EINVAL;
if (dev->state < USB_STATE_CONFIGURED)
return -ENODEV;
@@ -2160,7 +2160,7 @@ int usb_free_streams(struct usb_interface *interface,
dev = interface_to_usbdev(interface);
hcd = bus_to_hcd(dev->bus);
- if (dev->speed != USB_SPEED_SUPER)
+ if (dev->speed < USB_SPEED_SUPER)
return -EINVAL;
/* Double-free is not allowed */
diff --git a/kernel/drivers/usb/core/hub.c b/kernel/drivers/usb/core/hub.c
index 1560f3f3e..780db8bb2 100644
--- a/kernel/drivers/usb/core/hub.c
+++ b/kernel/drivers/usb/core/hub.c
@@ -101,6 +101,7 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
static void hub_release(struct kref *kref);
static int usb_reset_and_verify_device(struct usb_device *udev);
+static int hub_port_disable(struct usb_hub *hub, int port1, int set_state);
static inline char *portspeed(struct usb_hub *hub, int portstatus)
{
@@ -298,7 +299,7 @@ static void usb_set_lpm_parameters(struct usb_device *udev)
unsigned int hub_u1_del;
unsigned int hub_u2_del;
- if (!udev->lpm_capable || udev->speed != USB_SPEED_SUPER)
+ if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER)
return;
hub = usb_hub_to_struct_hub(udev->parent);
@@ -883,88 +884,6 @@ static int hub_set_port_link_state(struct usb_hub *hub, int port1,
}
/*
- * If USB 3.0 ports are placed into the Disabled state, they will no longer
- * detect any device connects or disconnects. This is generally not what the
- * USB core wants, since it expects a disabled port to produce a port status
- * change event when a new device connects.
- *
- * Instead, set the link state to Disabled, wait for the link to settle into
- * that state, clear any change bits, and then put the port into the RxDetect
- * state.
- */
-static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
-{
- int ret;
- int total_time;
- u16 portchange, portstatus;
-
- if (!hub_is_superspeed(hub->hdev))
- return -EINVAL;
-
- ret = hub_port_status(hub, port1, &portstatus, &portchange);
- if (ret < 0)
- return ret;
-
- /*
- * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
- * Controller [1022:7814] will have spurious result making the following
- * usb 3.0 device hotplugging route to the 2.0 root hub and recognized
- * as high-speed device if we set the usb 3.0 port link state to
- * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we
- * check the state here to avoid the bug.
- */
- if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
- USB_SS_PORT_LS_RX_DETECT) {
- dev_dbg(&hub->ports[port1 - 1]->dev,
- "Not disabling port; link state is RxDetect\n");
- return ret;
- }
-
- ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
- if (ret)
- return ret;
-
- /* Wait for the link to enter the disabled state. */
- for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
- ret = hub_port_status(hub, port1, &portstatus, &portchange);
- if (ret < 0)
- return ret;
-
- if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
- USB_SS_PORT_LS_SS_DISABLED)
- break;
- if (total_time >= HUB_DEBOUNCE_TIMEOUT)
- break;
- msleep(HUB_DEBOUNCE_STEP);
- }
- if (total_time >= HUB_DEBOUNCE_TIMEOUT)
- dev_warn(&hub->ports[port1 - 1]->dev,
- "Could not disable after %d ms\n", total_time);
-
- return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT);
-}
-
-static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
-{
- struct usb_port *port_dev = hub->ports[port1 - 1];
- struct usb_device *hdev = hub->hdev;
- int ret = 0;
-
- if (port_dev->child && set_state)
- usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
- if (!hub->error) {
- if (hub_is_superspeed(hub->hdev))
- ret = hub_usb3_port_disable(hub, port1);
- else
- ret = usb_clear_port_feature(hdev, port1,
- USB_PORT_FEAT_ENABLE);
- }
- if (ret && ret != -ENODEV)
- dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
- return ret;
-}
-
-/*
* Disable a port and mark a logical connect-change event, so that some
* time later hub_wq will disconnect() any existing usb_device on the port
* and will re-enumerate if there actually is a device attached.
@@ -1036,14 +955,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/* Continue a partial initialization */
if (type == HUB_INIT2 || type == HUB_INIT3) {
- device_lock(hub->intfdev);
+ device_lock(&hdev->dev);
/* Was the hub disconnected while we were waiting? */
- if (hub->disconnected) {
- device_unlock(hub->intfdev);
- kref_put(&hub->kref, hub_release);
- return;
- }
+ if (hub->disconnected)
+ goto disconnected;
if (type == HUB_INIT2)
goto init2;
goto init3;
@@ -1246,7 +1162,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
queue_delayed_work(system_power_efficient_wq,
&hub->init_work,
msecs_to_jiffies(delay));
- device_unlock(hub->intfdev);
+ device_unlock(&hdev->dev);
return; /* Continues at init3: below */
} else {
msleep(delay);
@@ -1265,12 +1181,12 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/* Scan all ports that need attention */
kick_hub_wq(hub);
- /* Allow autosuspend if it was suppressed */
- if (type <= HUB_INIT3)
+ if (type == HUB_INIT2 || type == HUB_INIT3) {
+ /* Allow autosuspend if it was suppressed */
+ disconnected:
usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
-
- if (type == HUB_INIT2 || type == HUB_INIT3)
- device_unlock(hub->intfdev);
+ device_unlock(&hdev->dev);
+ }
kref_put(&hub->kref, hub_release);
}
@@ -1299,8 +1215,6 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type)
struct usb_device *hdev = hub->hdev;
int i;
- cancel_delayed_work_sync(&hub->init_work);
-
/* hub_wq and related activity won't re-trigger */
hub->quiescing = 1;
@@ -2645,7 +2559,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub)
*/
static bool use_new_scheme(struct usb_device *udev, int retry)
{
- if (udev->speed == USB_SPEED_SUPER)
+ if (udev->speed >= USB_SPEED_SUPER)
return false;
return USE_NEW_SCHEME(retry);
@@ -3985,7 +3899,7 @@ int usb_disable_lpm(struct usb_device *udev)
struct usb_hcd *hcd;
if (!udev || !udev->parent ||
- udev->speed != USB_SPEED_SUPER ||
+ udev->speed < USB_SPEED_SUPER ||
!udev->lpm_capable ||
udev->state < USB_STATE_DEFAULT)
return 0;
@@ -4042,7 +3956,7 @@ void usb_enable_lpm(struct usb_device *udev)
struct usb_hcd *hcd;
if (!udev || !udev->parent ||
- udev->speed != USB_SPEED_SUPER ||
+ udev->speed < USB_SPEED_SUPER ||
!udev->lpm_capable ||
udev->state < USB_STATE_DEFAULT)
return;
@@ -4078,6 +3992,26 @@ void usb_unlocked_enable_lpm(struct usb_device *udev)
}
EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
+/* usb3 devices use U3 for disabled, make sure remote wakeup is disabled */
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+ struct usb_port *port_dev)
+{
+ struct usb_device *udev = port_dev->child;
+ int ret;
+
+ if (udev && udev->port_is_suspended && udev->do_remote_wakeup) {
+ ret = hub_set_port_link_state(hub, port_dev->portnum,
+ USB_SS_PORT_LS_U0);
+ if (!ret) {
+ msleep(USB_RESUME_TIMEOUT);
+ ret = usb_disable_remote_wakeup(udev);
+ }
+ if (ret)
+ dev_warn(&udev->dev,
+ "Port disable: can't disable remote wake\n");
+ udev->do_remote_wakeup = 0;
+ }
+}
#else /* CONFIG_PM */
@@ -4085,6 +4019,9 @@ EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
#define hub_resume NULL
#define hub_reset_resume NULL
+static inline void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+ struct usb_port *port_dev) { }
+
int usb_disable_lpm(struct usb_device *udev)
{
return 0;
@@ -4120,6 +4057,34 @@ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
#endif /* CONFIG_PM */
+/*
+ * USB-3 does not have a similar link state as USB-2 that will avoid negotiating
+ * a connection with a plugged-in cable but will signal the host when the cable
+ * is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
+ */
+static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
+{
+ struct usb_port *port_dev = hub->ports[port1 - 1];
+ struct usb_device *hdev = hub->hdev;
+ int ret = 0;
+
+ if (!hub->error) {
+ if (hub_is_superspeed(hub->hdev)) {
+ hub_usb3_port_prepare_disable(hub, port_dev);
+ ret = hub_set_port_link_state(hub, port_dev->portnum,
+ USB_SS_PORT_LS_U3);
+ } else {
+ ret = usb_clear_port_feature(hdev, port1,
+ USB_PORT_FEAT_ENABLE);
+ }
+ }
+ if (port_dev->child && set_state)
+ usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
+ if (ret && ret != -ENODEV)
+ dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
+ return ret;
+}
+
/* USB 2.0 spec, 7.1.7.3 / fig 7-29:
*
@@ -4277,7 +4242,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
{
struct usb_device *hdev = hub->hdev;
struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
- int i, j, retval;
+ int retries, operations, retval, i;
unsigned delay = HUB_SHORT_RESET_TIME;
enum usb_device_speed oldspeed = udev->speed;
const char *speed;
@@ -4308,7 +4273,9 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
retval = -ENODEV;
- if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) {
+ /* Don't allow speed changes at reset, except usb 3.0 to faster */
+ if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed &&
+ !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) {
dev_dbg(&udev->dev, "device reset changed speed!\n");
goto fail;
}
@@ -4320,6 +4287,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
* reported as 0xff in the device descriptor). WUSB1.0[4.8.1].
*/
switch (udev->speed) {
+ case USB_SPEED_SUPER_PLUS:
case USB_SPEED_SUPER:
case USB_SPEED_WIRELESS: /* fixed at 512 */
udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512);
@@ -4346,7 +4314,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
else
speed = usb_speed_string(udev->speed);
- if (udev->speed != USB_SPEED_SUPER)
+ if (udev->speed < USB_SPEED_SUPER)
dev_info(&udev->dev,
"%s %s USB device number %d using %s\n",
(udev->config) ? "reset" : "new", speed,
@@ -4379,7 +4347,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
* first 8 bytes of the device descriptor to get the ep0 maxpacket
* value.
*/
- for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) {
+ for (retries = 0; retries < GET_DESCRIPTOR_TRIES; (++retries, msleep(100))) {
bool did_new_scheme = false;
if (use_new_scheme(udev, retry_counter)) {
@@ -4406,7 +4374,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
* 255 is for WUSB devices, we actually need to use
* 512 (WUSB1.0[4.8.1]).
*/
- for (j = 0; j < 3; ++j) {
+ for (operations = 0; operations < 3; ++operations) {
buf->bMaxPacketSize0 = 0;
r = usb_control_msg(udev, usb_rcvaddr0pipe(),
USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
@@ -4426,7 +4394,13 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
r = -EPROTO;
break;
}
- if (r == 0)
+ /*
+ * Some devices time out if they are powered on
+ * when already connected. They need a second
+ * reset. But only on the first attempt,
+ * lest we get into a time out/reset loop
+ */
+ if (r == 0 || (r == -ETIMEDOUT && retries == 0))
break;
}
udev->descriptor.bMaxPacketSize0 =
@@ -4458,7 +4432,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
* authorization will assign the final address.
*/
if (udev->wusb == 0) {
- for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
+ for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) {
retval = hub_set_address(udev, devnum);
if (retval >= 0)
break;
@@ -4470,11 +4444,12 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
devnum, retval);
goto fail;
}
- if (udev->speed == USB_SPEED_SUPER) {
+ if (udev->speed >= USB_SPEED_SUPER) {
devnum = udev->devnum;
dev_info(&udev->dev,
- "%s SuperSpeed USB device number %d using %s\n",
+ "%s SuperSpeed%s USB device number %d using %s\n",
(udev->config) ? "reset" : "new",
+ (udev->speed == USB_SPEED_SUPER_PLUS) ? "Plus" : "",
devnum, udev->bus->controller->driver->name);
}
@@ -4513,7 +4488,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
* got from those devices show they aren't superspeed devices. Warm
* reset the port attached by the devices can fix them.
*/
- if ((udev->speed == USB_SPEED_SUPER) &&
+ if ((udev->speed >= USB_SPEED_SUPER) &&
(le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) {
dev_err(&udev->dev, "got a wrong device descriptor, "
"warm reset device\n");
@@ -4524,7 +4499,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
}
if (udev->descriptor.bMaxPacketSize0 == 0xff ||
- udev->speed == USB_SPEED_SUPER)
+ udev->speed >= USB_SPEED_SUPER)
i = 512;
else
i = udev->descriptor.bMaxPacketSize0;
@@ -4734,7 +4709,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
udev->level = hdev->level + 1;
udev->wusb = hub_is_wusb(hub);
- /* Only USB 3.0 devices are connected to SuperSpeed hubs. */
+ /* Devices connected to SuperSpeed hubs are USB 3.0 or later */
if (hub_is_superspeed(hub->hdev))
udev->speed = USB_SPEED_SUPER;
else
@@ -5386,6 +5361,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
}
bos = udev->bos;
+ udev->bos = NULL;
for (i = 0; i < SET_CONFIG_TRIES; ++i) {
@@ -5478,11 +5454,8 @@ done:
usb_set_usb2_hardware_lpm(udev, 1);
usb_unlocked_enable_lpm(udev);
usb_enable_ltm(udev);
- /* release the new BOS descriptor allocated by hub_port_init() */
- if (udev->bos != bos) {
- usb_release_bos_descriptor(udev);
- udev->bos = bos;
- }
+ usb_release_bos_descriptor(udev);
+ udev->bos = bos;
return 0;
re_enumerate:
diff --git a/kernel/drivers/usb/core/quirks.c b/kernel/drivers/usb/core/quirks.c
index 6dc810bce..24f9f9896 100644
--- a/kernel/drivers/usb/core/quirks.c
+++ b/kernel/drivers/usb/core/quirks.c
@@ -37,6 +37,10 @@ static const struct usb_device_id usb_quirk_list[] = {
/* CBM - Flash disk */
{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* WORLDE easy key (easykey.25) MIDI controller */
+ { USB_DEVICE(0x0218, 0x0401), .driver_info =
+ USB_QUIRK_CONFIG_INTF_STRINGS },
+
/* HP 5300/5370C scanner */
{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
@@ -44,6 +48,9 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Creative SB Audigy 2 NX */
{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* USB3503 */
+ { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* Microsoft Wireless Laser Mouse 6000 Receiver */
{ USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME },
@@ -125,6 +132,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
+ { USB_DEVICE(0x04f3, 0x0381), .driver_info =
+ USB_QUIRK_NO_LPM },
+
{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
@@ -173,6 +183,10 @@ static const struct usb_device_id usb_quirk_list[] = {
/* MAYA44USB sound device */
{ USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* ASUS Base Station(T100) */
+ { USB_DEVICE(0x0b05, 0x17e0), .driver_info =
+ USB_QUIRK_IGNORE_REMOTE_WAKEUP },
+
/* Action Semiconductor flash disk */
{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
@@ -188,26 +202,22 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x1908, 0x1315), .driver_info =
USB_QUIRK_HONOR_BNUMINTERFACES },
- /* INTEL VALUE SSD */
- { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
-
- /* USB3503 */
- { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
-
- /* ASUS Base Station(T100) */
- { USB_DEVICE(0x0b05, 0x17e0), .driver_info =
- USB_QUIRK_IGNORE_REMOTE_WAKEUP },
-
/* Protocol and OTG Electrical Test Device */
{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
+ /* Acer C120 LED Projector */
+ { USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
+
/* Blackmagic Design Intensity Shuttle */
{ USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
/* Blackmagic Design UltraStudio SDI */
{ USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
+ /* INTEL VALUE SSD */
+ { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
+
{ } /* terminating entry must be last */
};
diff --git a/kernel/drivers/usb/core/urb.c b/kernel/drivers/usb/core/urb.c
index 3d274778c..c601e25b6 100644
--- a/kernel/drivers/usb/core/urb.c
+++ b/kernel/drivers/usb/core/urb.c
@@ -401,7 +401,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
/* SuperSpeed isoc endpoints have up to 16 bursts of up to
* 3 packets each
*/
- if (dev->speed == USB_SPEED_SUPER) {
+ if (dev->speed >= USB_SPEED_SUPER) {
int burst = 1 + ep->ss_ep_comp.bMaxBurst;
int mult = USB_SS_MULT(ep->ss_ep_comp.bmAttributes);
max *= burst;
@@ -499,6 +499,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
}
/* too big? */
switch (dev->speed) {
+ case USB_SPEED_SUPER_PLUS:
case USB_SPEED_SUPER: /* units are 125us */
/* Handle up to 2^(16-1) microframes */
if (urb->interval > (1 << 15))
diff --git a/kernel/drivers/usb/core/usb.h b/kernel/drivers/usb/core/usb.h
index 05b5e17ab..53318126e 100644
--- a/kernel/drivers/usb/core/usb.h
+++ b/kernel/drivers/usb/core/usb.h
@@ -45,7 +45,7 @@ static inline unsigned usb_get_max_power(struct usb_device *udev,
struct usb_host_config *c)
{
/* SuperSpeed power is in 8 mA units; others are in 2 mA units */
- unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2);
+ unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2);
return c->desc.bMaxPower * mul;
}