diff options
Diffstat (limited to 'drivers/usb/host/ehci-dbg.c')
| -rw-r--r-- | drivers/usb/host/ehci-dbg.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 5bbfb1f9929c..4a9c2edbcb2b 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -536,10 +536,14 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf) { struct ehci_hcd *ehci; + struct ehci_tt *tt; + struct ehci_per_sched *ps; unsigned temp, size; char *next; unsigned i; u8 *bw; + u16 *bf; + u8 budget[EHCI_BANDWIDTH_SIZE]; ehci = hcd_to_ehci(bus_to_hcd(buf->bus)); next = buf->output_buf; @@ -563,6 +567,50 @@ static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf) size -= temp; next += temp; } + + /* Dump all the FS/LS tables */ + list_for_each_entry(tt, &ehci->tt_list, tt_list) { + temp = scnprintf(next, size, + "\nTT %s port %d FS/LS bandwidth allocation (us per frame)\n", + dev_name(&tt->usb_tt->hub->dev), + tt->tt_port + !!tt->usb_tt->multi); + size -= temp; + next += temp; + + bf = tt->bandwidth; + temp = scnprintf(next, size, + " %5u%5u%5u%5u%5u%5u%5u%5u\n", + bf[0], bf[1], bf[2], bf[3], + bf[4], bf[5], bf[6], bf[7]); + size -= temp; + next += temp; + + temp = scnprintf(next, size, + "FS/LS budget (us per microframe)\n"); + size -= temp; + next += temp; + compute_tt_budget(budget, tt); + for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) { + bw = &budget[i]; + temp = scnprintf(next, size, + "%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n", + i, bw[0], bw[1], bw[2], bw[3], + bw[4], bw[5], bw[6], bw[7]); + size -= temp; + next += temp; + } + list_for_each_entry(ps, &tt->ps_list, ps_list) { + temp = scnprintf(next, size, + "%s ep %02x: %4u @ %2u.%u+%u mask %04x\n", + dev_name(&ps->udev->dev), + ps->ep->desc.bEndpointAddress, + ps->tt_usecs, + ps->bw_phase, ps->phase_uf, + ps->bw_period, ps->cs_mask); + size -= temp; + next += temp; + } + } spin_unlock_irq(&ehci->lock); return next - buf->output_buf; |