USB: wusbcore: add HWA-specific fields to usb_rpipe_descriptor
This patch adds the HWA specific members to struct usb_rpipe_descriptor and sets them correctly based on the wireless endpoint compananion descriptor. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -251,8 +251,8 @@ static int __rpipe_reset(struct wahc *wa, unsigned index)
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static struct usb_wireless_ep_comp_descriptor epc0 = {
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.bLength = sizeof(epc0),
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.bDescriptorType = USB_DT_WIRELESS_ENDPOINT_COMP,
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/* .bMaxBurst = 1, */
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.bMaxSequence = 31,
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.bMaxBurst = 1,
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.bMaxSequence = 2,
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};
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/*
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@ -317,6 +317,7 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
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struct device *dev = &wa->usb_iface->dev;
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struct usb_device *usb_dev = urb->dev;
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struct usb_wireless_ep_comp_descriptor *epcd;
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u32 ack_window, epcd_max_sequence;
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u8 unauth;
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epcd = rpipe_epc_find(dev, ep);
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@ -333,8 +334,11 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
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rpipe->descr.wBlocks = cpu_to_le16(16); /* given */
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/* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */
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rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize);
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rpipe->descr.bHSHubAddress = 0; /* reserved: zero */
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rpipe->descr.bHSHubPort = wusb_port_no_to_idx(urb->dev->portnum);
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rpipe->descr.hwa_bMaxBurst = max(min_t(unsigned int,
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epcd->bMaxBurst, 16U), 1U);
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rpipe->descr.hwa_bDeviceInfoIndex =
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wusb_port_no_to_idx(urb->dev->portnum);
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/* FIXME: use maximum speed as supported or recommended by device */
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rpipe->descr.bSpeed = usb_pipeendpoint(urb->pipe) == 0 ?
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UWB_PHY_RATE_53 : UWB_PHY_RATE_200;
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@ -344,23 +348,24 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
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le16_to_cpu(rpipe->descr.wRPipeIndex),
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usb_pipeendpoint(urb->pipe), rpipe->descr.bSpeed);
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/* see security.c:wusb_update_address() */
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if (unlikely(urb->dev->devnum == 0x80))
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rpipe->descr.bDeviceAddress = 0;
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else
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rpipe->descr.bDeviceAddress = urb->dev->devnum | unauth;
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rpipe->descr.hwa_reserved = 0;
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rpipe->descr.bEndpointAddress = ep->desc.bEndpointAddress;
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/* FIXME: bDataSequence */
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rpipe->descr.bDataSequence = 0;
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/* FIXME: dwCurrentWindow */
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rpipe->descr.dwCurrentWindow = cpu_to_le32(1);
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/* FIXME: bMaxDataSequence */
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rpipe->descr.bMaxDataSequence = epcd->bMaxSequence - 1;
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/* start with base window of hwa_bMaxBurst bits starting at 0. */
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ack_window = 0xFFFFFFFF >> (32 - rpipe->descr.hwa_bMaxBurst);
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rpipe->descr.dwCurrentWindow = cpu_to_le32(ack_window);
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epcd_max_sequence = max(min_t(unsigned int,
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epcd->bMaxSequence, 32U), 2U);
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rpipe->descr.bMaxDataSequence = epcd_max_sequence - 1;
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rpipe->descr.bInterval = ep->desc.bInterval;
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/* FIXME: bOverTheAirInterval */
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rpipe->descr.bOverTheAirInterval = 0; /* 0 if not isoc */
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/* FIXME: xmit power & preamble blah blah */
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rpipe->descr.bmAttribute = ep->desc.bmAttributes & 0x03;
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rpipe->descr.bmAttribute = (ep->desc.bmAttributes &
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USB_ENDPOINT_XFERTYPE_MASK);
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/* rpipe->descr.bmCharacteristics RO */
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/* FIXME: bmRetryOptions */
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rpipe->descr.bmRetryOptions = 15;
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@ -387,10 +392,8 @@ static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,
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const struct usb_host_endpoint *ep,
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const struct urb *urb, gfp_t gfp)
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{
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int result = 0; /* better code for lack of companion? */
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int result = 0;
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struct device *dev = &wa->usb_iface->dev;
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struct usb_device *usb_dev = urb->dev;
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u8 unauth = (usb_dev->wusb && !usb_dev->authenticated) ? 0x80 : 0;
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u8 portnum = wusb_port_no_to_idx(urb->dev->portnum);
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#define AIM_CHECK(rdf, val, text) \
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@ -403,13 +406,10 @@ static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,
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WARN_ON(1); \
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} \
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} while (0)
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AIM_CHECK(wMaxPacketSize, cpu_to_le16(ep->desc.wMaxPacketSize),
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"(%u vs %u)");
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AIM_CHECK(bHSHubPort, portnum, "(%u vs %u)");
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AIM_CHECK(hwa_bDeviceInfoIndex, portnum, "(%u vs %u)");
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AIM_CHECK(bSpeed, usb_pipeendpoint(urb->pipe) == 0 ?
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UWB_PHY_RATE_53 : UWB_PHY_RATE_200,
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"(%u vs %u)");
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AIM_CHECK(bDeviceAddress, urb->dev->devnum | unauth, "(%u vs %u)");
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AIM_CHECK(bEndpointAddress, ep->desc.bEndpointAddress, "(%u vs %u)");
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AIM_CHECK(bInterval, ep->desc.bInterval, "(%u vs %u)");
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AIM_CHECK(bmAttribute, ep->desc.bmAttributes & 0x03, "(%u vs %u)");
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@ -92,11 +92,20 @@ struct usb_rpipe_descriptor {
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__le16 wRPipeIndex;
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__le16 wRequests;
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__le16 wBlocks; /* rw if 0 */
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__le16 wMaxPacketSize; /* rw? */
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u8 bHSHubAddress; /* reserved: 0 */
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u8 bHSHubPort; /* ??? FIXME ??? */
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__le16 wMaxPacketSize; /* rw */
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union {
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u8 dwa_bHSHubAddress; /* rw: DWA. */
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u8 hwa_bMaxBurst; /* rw: HWA. */
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};
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union {
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u8 dwa_bHSHubPort; /* rw: DWA. */
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u8 hwa_bDeviceInfoIndex; /* rw: HWA. */
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};
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u8 bSpeed; /* rw: xfer rate 'enum uwb_phy_rate' */
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u8 bDeviceAddress; /* rw: Target device address */
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union {
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u8 dwa_bDeviceAddress; /* rw: DWA Target device address. */
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u8 hwa_reserved; /* rw: HWA. */
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};
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u8 bEndpointAddress; /* rw: Target EP address */
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u8 bDataSequence; /* ro: Current Data sequence */
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__le32 dwCurrentWindow; /* ro */
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