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| author | Gerd Hoffmann <kraxel@redhat.com> | 2012-03-22 15:28:45 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2012-04-17 10:23:27 +0200 |
| commit | 39c20577009731d5e059db10ef269807b57e498d (patch) | |
| tree | c15801960da9539acf902fd85d5a041f0467a3aa | |
| parent | 19b89252a32e53aa8bd90a8d4c3e3dcc5f8fe46d (diff) | |
| download | qemu-39c20577009731d5e059db10ef269807b57e498d.tar.gz qemu-39c20577009731d5e059db10ef269807b57e498d.tar.bz2 qemu-39c20577009731d5e059db10ef269807b57e498d.zip | |
usb-host: add property to turn off pipelining
Add a property to usb-host to disable the bulk endpoint pipelining.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | hw/usb/host-linux.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/usb/host-linux.c b/hw/usb/host-linux.c index 8084fd941a..a382f0ad98 100644 --- a/hw/usb/host-linux.c +++ b/hw/usb/host-linux.c @@ -94,6 +94,10 @@ struct USBAutoFilter { uint32_t product_id; }; +enum USBHostDeviceOptions { + USB_HOST_OPT_PIPELINE, +}; + typedef struct USBHostDevice { USBDevice dev; int fd; @@ -104,6 +108,7 @@ typedef struct USBHostDevice { int descr_len; int closing; uint32_t iso_urb_count; + uint32_t options; Notifier exit; struct endp_data ep_in[USB_MAX_ENDPOINTS]; @@ -1203,7 +1208,8 @@ static int usb_linux_update_endp_table(USBHostDevice *s) USB_ENDPOINT_XFER_INVALID); usb_ep_set_type(&s->dev, pid, ep, type); usb_ep_set_ifnum(&s->dev, pid, ep, interface); - if (type == USB_ENDPOINT_XFER_BULK) { + if ((s->options & (1 << USB_HOST_OPT_PIPELINE)) && + (type == USB_ENDPOINT_XFER_BULK)) { usb_ep_set_pipeline(&s->dev, pid, ep, true); } @@ -1431,6 +1437,8 @@ static Property usb_host_dev_properties[] = { DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4), DEFINE_PROP_INT32("bootindex", USBHostDevice, bootindex, -1), + DEFINE_PROP_BIT("pipeline", USBHostDevice, options, + USB_HOST_OPT_PIPELINE, true), DEFINE_PROP_END_OF_LIST(), }; |