diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
---|---|---|
committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/usb/core/sysfs.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/usb/core/sysfs.c')
-rw-r--r-- | kernel/drivers/usb/core/sysfs.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/kernel/drivers/usb/core/sysfs.c b/kernel/drivers/usb/core/sysfs.c index d26973844..65b6e6b84 100644 --- a/kernel/drivers/usb/core/sysfs.c +++ b/kernel/drivers/usb/core/sysfs.c @@ -531,6 +531,44 @@ static ssize_t usb2_lpm_besl_store(struct device *dev, } static DEVICE_ATTR_RW(usb2_lpm_besl); +static ssize_t usb3_hardware_lpm_u1_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_device *udev = to_usb_device(dev); + const char *p; + + usb_lock_device(udev); + + if (udev->usb3_lpm_u1_enabled) + p = "enabled"; + else + p = "disabled"; + + usb_unlock_device(udev); + + return sprintf(buf, "%s\n", p); +} +static DEVICE_ATTR_RO(usb3_hardware_lpm_u1); + +static ssize_t usb3_hardware_lpm_u2_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_device *udev = to_usb_device(dev); + const char *p; + + usb_lock_device(udev); + + if (udev->usb3_lpm_u2_enabled) + p = "enabled"; + else + p = "disabled"; + + usb_unlock_device(udev); + + return sprintf(buf, "%s\n", p); +} +static DEVICE_ATTR_RO(usb3_hardware_lpm_u2); + static struct attribute *usb2_hardware_lpm_attr[] = { &dev_attr_usb2_hardware_lpm.attr, &dev_attr_usb2_lpm_l1_timeout.attr, @@ -542,6 +580,16 @@ static struct attribute_group usb2_hardware_lpm_attr_group = { .attrs = usb2_hardware_lpm_attr, }; +static struct attribute *usb3_hardware_lpm_attr[] = { + &dev_attr_usb3_hardware_lpm_u1.attr, + &dev_attr_usb3_hardware_lpm_u2.attr, + NULL, +}; +static struct attribute_group usb3_hardware_lpm_attr_group = { + .name = power_group_name, + .attrs = usb3_hardware_lpm_attr, +}; + static struct attribute *power_attrs[] = { &dev_attr_autosuspend.attr, &dev_attr_level.attr, @@ -564,6 +612,10 @@ static int add_power_attributes(struct device *dev) if (udev->usb2_hw_lpm_capable == 1) rc = sysfs_merge_group(&dev->kobj, &usb2_hardware_lpm_attr_group); + if (udev->speed == USB_SPEED_SUPER && + udev->lpm_capable == 1) + rc = sysfs_merge_group(&dev->kobj, + &usb3_hardware_lpm_attr_group); } return rc; @@ -926,6 +978,41 @@ static ssize_t supports_autosuspend_show(struct device *dev, } static DEVICE_ATTR_RO(supports_autosuspend); +/* + * interface_authorized_show - show authorization status of an USB interface + * 1 is authorized, 0 is deauthorized + */ +static ssize_t interface_authorized_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + + return sprintf(buf, "%u\n", intf->authorized); +} + +/* + * interface_authorized_store - authorize or deauthorize an USB interface + */ +static ssize_t interface_authorized_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + bool val; + + if (strtobool(buf, &val) != 0) + return -EINVAL; + + if (val) + usb_authorize_interface(intf); + else + usb_deauthorize_interface(intf); + + return count; +} +static struct device_attribute dev_attr_interface_authorized = + __ATTR(authorized, S_IRUGO | S_IWUSR, + interface_authorized_show, interface_authorized_store); + static struct attribute *intf_attrs[] = { &dev_attr_bInterfaceNumber.attr, &dev_attr_bAlternateSetting.attr, @@ -935,6 +1022,7 @@ static struct attribute *intf_attrs[] = { &dev_attr_bInterfaceProtocol.attr, &dev_attr_modalias.attr, &dev_attr_supports_autosuspend.attr, + &dev_attr_interface_authorized.attr, NULL, }; static struct attribute_group intf_attr_grp = { |