diff options
| author | Yuyang Du <yuyang.du@intel.com> | 2017-06-08 13:04:10 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-13 10:51:10 +0200 |
| commit | 1c9de5bf428612458427943b724bea51abde520a (patch) | |
| tree | deb6f9bed592da3a5952239dc5212e721ff4ab5f /tools/usb/usbip/libsrc/vhci_driver.c | |
| parent | 03cd00d538a6feb0492cd153edf256ef7d7bd95e (diff) | |
| download | linux-1c9de5bf428612458427943b724bea51abde520a.tar.bz2 | |
usbip: vhci-hcd: Add USB3 SuperSpeed support
This patch adds a USB3 HCD to an existing USB2 HCD and provides
the support of SuperSpeed, in case the device can only be enumerated
with SuperSpeed.
The bulk of the added code in usb3_bos_desc and hub_control to support
SuperSpeed is borrowed from the commit 1cd8fd2887e162ad ("usb: gadget:
dummy_hcd: add SuperSpeed support").
With this patch, each vhci will have VHCI_HC_PORTS HighSpeed ports
and VHCI_HC_PORTS SuperSpeed ports.
Suggested-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Yuyang Du <yuyang.du@intel.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/usb/usbip/libsrc/vhci_driver.c')
| -rw-r--r-- | tools/usb/usbip/libsrc/vhci_driver.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c index 3d8189b4f539..9bd2cd71645d 100644 --- a/tools/usb/usbip/libsrc/vhci_driver.c +++ b/tools/usb/usbip/libsrc/vhci_driver.c @@ -52,9 +52,10 @@ static int parse_status(const char *value) unsigned long socket; char lbusid[SYSFS_BUS_ID_SIZE]; struct usbip_imported_device *idev; + char hub[3]; - ret = sscanf(c, "%d %d %d %x %lx %31s\n", - &port, &status, &speed, + ret = sscanf(c, "%2s %d %d %d %x %lx %31s\n", + hub, &port, &status, &speed, &devid, &socket, lbusid); if (ret < 5) { @@ -62,15 +63,19 @@ static int parse_status(const char *value) BUG(); } - dbg("port %d status %d speed %d devid %x", - port, status, speed, devid); + dbg("hub %s port %d status %d speed %d devid %x", + hub, port, status, speed, devid); dbg("socket %lx lbusid %s", socket, lbusid); /* if a device is connected, look at it */ idev = &vhci_driver->idev[port]; - memset(idev, 0, sizeof(*idev)); + if (strncmp("hs", hub, 2) == 0) + idev->hub = HUB_SPEED_HIGH; + else /* strncmp("ss", hub, 2) == 0 */ + idev->hub = HUB_SPEED_SUPER; + idev->port = port; idev->status = status; @@ -320,11 +325,15 @@ err: } -int usbip_vhci_get_free_port(void) +int usbip_vhci_get_free_port(uint32_t speed) { for (int i = 0; i < vhci_driver->nports; i++) { + if (speed == USB_SPEED_SUPER && + vhci_driver->idev[i].hub != HUB_SPEED_SUPER) + continue; + if (vhci_driver->idev[i].status == VDEV_ST_NULL) - return i; + return vhci_driver->idev[i].port; } return -1; |