diff options
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
| -rw-r--r-- | drivers/usb/host/ehci-q.c | 64 |
1 files changed, 38 insertions, 26 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index a7f776a13eb..db05bd8ee9d 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -105,9 +105,9 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd) is_out = qh->is_out; epnum = (hc32_to_cpup(ehci, &hw->hw_info1) >> 8) & 0x0f; - if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) { + if (unlikely(!usb_gettoggle(qh->ps.udev, epnum, is_out))) { hw->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE); - usb_settoggle (qh->dev, epnum, is_out, 1); + usb_settoggle(qh->ps.udev, epnum, is_out, 1); } } @@ -247,8 +247,6 @@ static int qtd_copy_status ( static void ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) -__releases(ehci->lock) -__acquires(ehci->lock) { if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { /* ... update hc-wide periodic stats */ @@ -274,11 +272,8 @@ __acquires(ehci->lock) urb->actual_length, urb->transfer_buffer_length); #endif - /* complete() can reenter this HCD */ usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); - spin_unlock (&ehci->lock); usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status); - spin_lock (&ehci->lock); } static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); @@ -802,26 +797,35 @@ qh_make ( * For control/bulk requests, the HC or TT handles these. */ if (type == PIPE_INTERRUPT) { - qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH, + unsigned tmp; + + qh->ps.usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH, is_input, 0, hb_mult(maxp) * max_packet(maxp))); - qh->start = NO_FRAME; + qh->ps.phase = NO_FRAME; if (urb->dev->speed == USB_SPEED_HIGH) { - qh->c_usecs = 0; + qh->ps.c_usecs = 0; qh->gap_uf = 0; - qh->period = urb->interval >> 3; - if (qh->period == 0 && urb->interval != 1) { + if (urb->interval > 1 && urb->interval < 8) { /* NOTE interval 2 or 4 uframes could work. * But interval 1 scheduling is simpler, and * includes high bandwidth. */ urb->interval = 1; - } else if (qh->period > ehci->periodic_size) { - qh->period = ehci->periodic_size; - urb->interval = qh->period << 3; + } else if (urb->interval > ehci->periodic_size << 3) { + urb->interval = ehci->periodic_size << 3; } + qh->ps.period = urb->interval >> 3; + + /* period for bandwidth allocation */ + tmp = min_t(unsigned, EHCI_BANDWIDTH_SIZE, + 1 << (urb->ep->desc.bInterval - 1)); + + /* Allow urb->interval to override */ + qh->ps.bw_uperiod = min_t(unsigned, tmp, urb->interval); + qh->ps.bw_period = qh->ps.bw_uperiod >> 3; } else { int think_time; @@ -831,27 +835,35 @@ qh_make ( /* FIXME this just approximates SPLIT/CSPLIT times */ if (is_input) { // SPLIT, gap, CSPLIT+DATA - qh->c_usecs = qh->usecs + HS_USECS (0); - qh->usecs = HS_USECS (1); + qh->ps.c_usecs = qh->ps.usecs + HS_USECS(0); + qh->ps.usecs = HS_USECS(1); } else { // SPLIT+DATA, gap, CSPLIT - qh->usecs += HS_USECS (1); - qh->c_usecs = HS_USECS (0); + qh->ps.usecs += HS_USECS(1); + qh->ps.c_usecs = HS_USECS(0); } think_time = tt ? tt->think_time : 0; - qh->tt_usecs = NS_TO_US (think_time + + qh->ps.tt_usecs = NS_TO_US(think_time + usb_calc_bus_time (urb->dev->speed, is_input, 0, max_packet (maxp))); - qh->period = urb->interval; - if (qh->period > ehci->periodic_size) { - qh->period = ehci->periodic_size; - urb->interval = qh->period; - } + if (urb->interval > ehci->periodic_size) + urb->interval = ehci->periodic_size; + qh->ps.period = urb->interval; + + /* period for bandwidth allocation */ + tmp = min_t(unsigned, EHCI_BANDWIDTH_FRAMES, + urb->ep->desc.bInterval); + tmp = rounddown_pow_of_two(tmp); + + /* Allow urb->interval to override */ + qh->ps.bw_period = min_t(unsigned, tmp, urb->interval); + qh->ps.bw_uperiod = qh->ps.bw_period << 3; } } /* support for tt scheduling, and access to toggles */ - qh->dev = urb->dev; + qh->ps.udev = urb->dev; + qh->ps.ep = urb->ep; /* using TT? */ switch (urb->dev->speed) { |