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usb: misc: usbtest: add super-speed isoc support 

The calculation of packet number within microframe is different between
high-speed and super-speed endpoint, we add support for super-speed
in this patch.

Cc: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Peter Chen 2019-02-12 08:57:27 +00:00 committed by Felipe Balbi
parent c7152763f0
commit 0d1ec19472
1 changed files with 24 additions and 4 deletions
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28
drivers/usb/misc/usbtest.c
View File

@ -347,6 +347,14 @@ static unsigned get_maxpacket(struct usb_device *udev, int pipe)
return le16_to_cpup(&ep->desc.wMaxPacketSize);
}
static int ss_isoc_get_packet_num(struct usb_device *udev, int pipe)
{
struct usb_host_endpoint *ep = usb_pipe_endpoint(udev, pipe);
return USB_SS_MULT(ep->ss_ep_comp.bmAttributes)
* (1 + ep->ss_ep_comp.bMaxBurst);
}
static void simple_fill_buf(struct urb *urb)
{
unsigned i;
@ -1976,8 +1984,13 @@ static struct urb *iso_alloc_urb(
if (bytes < 0 || !desc)
return NULL;
maxp = usb_endpoint_maxp(desc);
maxp *= usb_endpoint_maxp_mult(desc);
if (udev->speed >= USB_SPEED_SUPER)
maxp *= ss_isoc_get_packet_num(udev, pipe);
else
maxp *= usb_endpoint_maxp_mult(desc);
packets = DIV_ROUND_UP(bytes, maxp);
urb = usb_alloc_urb(packets, GFP_KERNEL);
@ -2065,17 +2078,24 @@ test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
packets *= param->iterations;
if (context.is_iso) {
int transaction_num;
if (udev->speed >= USB_SPEED_SUPER)
transaction_num = ss_isoc_get_packet_num(udev, pipe);
else
transaction_num = usb_endpoint_maxp_mult(desc);
dev_info(&dev->intf->dev,
"iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1 << (desc->bInterval - 1),
(udev->speed == USB_SPEED_HIGH) ? "micro" : "",
(udev->speed >= USB_SPEED_HIGH) ? "micro" : "",
usb_endpoint_maxp(desc),
usb_endpoint_maxp_mult(desc));
transaction_num);
dev_info(&dev->intf->dev,
"total %lu msec (%lu packets)\n",
(packets * (1 << (desc->bInterval - 1)))
/ ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
/ ((udev->speed >= USB_SPEED_HIGH) ? 8 : 1),
packets);
}