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>
This commit is contained in:
Thomas Pugliese 2013-06-06 14:06:01 -05:00 коммит произвёл Greg Kroah-Hartman
Родитель edc40a4bbe
Коммит ee0218fa43
2 изменённых файлов: 34 добавлений и 25 удалений

Просмотреть файл

@ -251,8 +251,8 @@ static int __rpipe_reset(struct wahc *wa, unsigned index)
static struct usb_wireless_ep_comp_descriptor epc0 = {
.bLength = sizeof(epc0),
.bDescriptorType = USB_DT_WIRELESS_ENDPOINT_COMP,
/* .bMaxBurst = 1, */
.bMaxSequence = 31,
.bMaxBurst = 1,
.bMaxSequence = 2,
};
/*
@ -317,6 +317,7 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
struct device *dev = &wa->usb_iface->dev;
struct usb_device *usb_dev = urb->dev;
struct usb_wireless_ep_comp_descriptor *epcd;
u32 ack_window, epcd_max_sequence;
u8 unauth;
epcd = rpipe_epc_find(dev, ep);
@ -333,8 +334,11 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
rpipe->descr.wBlocks = cpu_to_le16(16); /* given */
/* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */
rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize);
rpipe->descr.bHSHubAddress = 0; /* reserved: zero */
rpipe->descr.bHSHubPort = wusb_port_no_to_idx(urb->dev->portnum);
rpipe->descr.hwa_bMaxBurst = max(min_t(unsigned int,
epcd->bMaxBurst, 16U), 1U);
rpipe->descr.hwa_bDeviceInfoIndex =
wusb_port_no_to_idx(urb->dev->portnum);
/* FIXME: use maximum speed as supported or recommended by device */
rpipe->descr.bSpeed = usb_pipeendpoint(urb->pipe) == 0 ?
UWB_PHY_RATE_53 : UWB_PHY_RATE_200;
@ -344,23 +348,24 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
le16_to_cpu(rpipe->descr.wRPipeIndex),
usb_pipeendpoint(urb->pipe), rpipe->descr.bSpeed);
/* see security.c:wusb_update_address() */
if (unlikely(urb->dev->devnum == 0x80))
rpipe->descr.bDeviceAddress = 0;
else
rpipe->descr.bDeviceAddress = urb->dev->devnum | unauth;
rpipe->descr.hwa_reserved = 0;
rpipe->descr.bEndpointAddress = ep->desc.bEndpointAddress;
/* FIXME: bDataSequence */
rpipe->descr.bDataSequence = 0;
/* FIXME: dwCurrentWindow */
rpipe->descr.dwCurrentWindow = cpu_to_le32(1);
/* FIXME: bMaxDataSequence */
rpipe->descr.bMaxDataSequence = epcd->bMaxSequence - 1;
/* start with base window of hwa_bMaxBurst bits starting at 0. */
ack_window = 0xFFFFFFFF >> (32 - rpipe->descr.hwa_bMaxBurst);
rpipe->descr.dwCurrentWindow = cpu_to_le32(ack_window);
epcd_max_sequence = max(min_t(unsigned int,
epcd->bMaxSequence, 32U), 2U);
rpipe->descr.bMaxDataSequence = epcd_max_sequence - 1;
rpipe->descr.bInterval = ep->desc.bInterval;
/* FIXME: bOverTheAirInterval */
rpipe->descr.bOverTheAirInterval = 0; /* 0 if not isoc */
/* FIXME: xmit power & preamble blah blah */
rpipe->descr.bmAttribute = ep->desc.bmAttributes & 0x03;
rpipe->descr.bmAttribute = (ep->desc.bmAttributes &
USB_ENDPOINT_XFERTYPE_MASK);
/* rpipe->descr.bmCharacteristics RO */
/* FIXME: bmRetryOptions */
rpipe->descr.bmRetryOptions = 15;
@ -387,10 +392,8 @@ static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,
const struct usb_host_endpoint *ep,
const struct urb *urb, gfp_t gfp)
{
int result = 0; /* better code for lack of companion? */
int result = 0;
struct device *dev = &wa->usb_iface->dev;
struct usb_device *usb_dev = urb->dev;
u8 unauth = (usb_dev->wusb && !usb_dev->authenticated) ? 0x80 : 0;
u8 portnum = wusb_port_no_to_idx(urb->dev->portnum);
#define AIM_CHECK(rdf, val, text) \
@ -403,13 +406,10 @@ static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa,
WARN_ON(1); \
} \
} while (0)
AIM_CHECK(wMaxPacketSize, cpu_to_le16(ep->desc.wMaxPacketSize),
"(%u vs %u)");
AIM_CHECK(bHSHubPort, portnum, "(%u vs %u)");
AIM_CHECK(hwa_bDeviceInfoIndex, portnum, "(%u vs %u)");
AIM_CHECK(bSpeed, usb_pipeendpoint(urb->pipe) == 0 ?
UWB_PHY_RATE_53 : UWB_PHY_RATE_200,
"(%u vs %u)");
AIM_CHECK(bDeviceAddress, urb->dev->devnum | unauth, "(%u vs %u)");
AIM_CHECK(bEndpointAddress, ep->desc.bEndpointAddress, "(%u vs %u)");
AIM_CHECK(bInterval, ep->desc.bInterval, "(%u vs %u)");
AIM_CHECK(bmAttribute, ep->desc.bmAttributes & 0x03, "(%u vs %u)");

Просмотреть файл

@ -92,11 +92,20 @@ struct usb_rpipe_descriptor {
__le16 wRPipeIndex;
__le16 wRequests;
__le16 wBlocks; /* rw if 0 */
__le16 wMaxPacketSize; /* rw? */
u8 bHSHubAddress; /* reserved: 0 */
u8 bHSHubPort; /* ??? FIXME ??? */
__le16 wMaxPacketSize; /* rw */
union {
u8 dwa_bHSHubAddress; /* rw: DWA. */
u8 hwa_bMaxBurst; /* rw: HWA. */
};
union {
u8 dwa_bHSHubPort; /* rw: DWA. */
u8 hwa_bDeviceInfoIndex; /* rw: HWA. */
};
u8 bSpeed; /* rw: xfer rate 'enum uwb_phy_rate' */
u8 bDeviceAddress; /* rw: Target device address */
union {
u8 dwa_bDeviceAddress; /* rw: DWA Target device address. */
u8 hwa_reserved; /* rw: HWA. */
};
u8 bEndpointAddress; /* rw: Target EP address */
u8 bDataSequence; /* ro: Current Data sequence */
__le32 dwCurrentWindow; /* ro */