aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/host/ehci-dbg.c2
-rw-r--r--drivers/usb/host/ehci-q.c5
-rw-r--r--drivers/usb/host/ehci-sched.c13
-rw-r--r--drivers/usb/host/ehci.h5
4 files changed, 16 insertions, 9 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 50cb01831075..b01efb6b36f6 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -527,7 +527,7 @@ show_periodic (struct class_device *class_dev, char *buf)
527 p.qh->period, 527 p.qh->period,
528 le32_to_cpup (&p.qh->hw_info2) 528 le32_to_cpup (&p.qh->hw_info2)
529 /* uframe masks */ 529 /* uframe masks */
530 & 0xffff, 530 & (QH_CMASK | QH_SMASK),
531 p.qh); 531 p.qh);
532 size -= temp; 532 size -= temp;
533 next += temp; 533 next += temp;
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 4f97a4ad1ed3..20df01a79b2e 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -222,7 +222,7 @@ __acquires(ehci->lock)
222 struct ehci_qh *qh = (struct ehci_qh *) urb->hcpriv; 222 struct ehci_qh *qh = (struct ehci_qh *) urb->hcpriv;
223 223
224 /* S-mask in a QH means it's an interrupt urb */ 224 /* S-mask in a QH means it's an interrupt urb */
225 if ((qh->hw_info2 & __constant_cpu_to_le32 (0x00ff)) != 0) { 225 if ((qh->hw_info2 & __constant_cpu_to_le32 (QH_SMASK)) != 0) {
226 226
227 /* ... update hc-wide periodic stats (for usbfs) */ 227 /* ... update hc-wide periodic stats (for usbfs) */
228 ehci_to_hcd(ehci)->self.bandwidth_int_reqs--; 228 ehci_to_hcd(ehci)->self.bandwidth_int_reqs--;
@@ -428,7 +428,8 @@ halt:
428 /* should be rare for periodic transfers, 428 /* should be rare for periodic transfers,
429 * except maybe high bandwidth ... 429 * except maybe high bandwidth ...
430 */ 430 */
431 if (qh->period) { 431 if ((__constant_cpu_to_le32 (QH_SMASK)
432 & qh->hw_info2) != 0) {
432 intr_deschedule (ehci, qh); 433 intr_deschedule (ehci, qh);
433 (void) qh_schedule (ehci, qh); 434 (void) qh_schedule (ehci, qh);
434 } else 435 } else
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 9af4f64532a9..b56f25864ed6 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -301,7 +301,7 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh)
301 301
302 dev_dbg (&qh->dev->dev, 302 dev_dbg (&qh->dev->dev,
303 "link qh%d-%04x/%p start %d [%d/%d us]\n", 303 "link qh%d-%04x/%p start %d [%d/%d us]\n",
304 period, le32_to_cpup (&qh->hw_info2) & 0xffff, 304 period, le32_to_cpup (&qh->hw_info2) & (QH_CMASK | QH_SMASK),
305 qh, qh->start, qh->usecs, qh->c_usecs); 305 qh, qh->start, qh->usecs, qh->c_usecs);
306 306
307 /* high bandwidth, or otherwise every microframe */ 307 /* high bandwidth, or otherwise every microframe */
@@ -385,7 +385,8 @@ static void qh_unlink_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh)
385 385
386 dev_dbg (&qh->dev->dev, 386 dev_dbg (&qh->dev->dev,
387 "unlink qh%d-%04x/%p start %d [%d/%d us]\n", 387 "unlink qh%d-%04x/%p start %d [%d/%d us]\n",
388 qh->period, le32_to_cpup (&qh->hw_info2) & 0xffff, 388 qh->period,
389 le32_to_cpup (&qh->hw_info2) & (QH_CMASK | QH_SMASK),
389 qh, qh->start, qh->usecs, qh->c_usecs); 390 qh, qh->start, qh->usecs, qh->c_usecs);
390 391
391 /* qh->qh_next still "live" to HC */ 392 /* qh->qh_next still "live" to HC */
@@ -411,7 +412,7 @@ static void intr_deschedule (struct ehci_hcd *ehci, struct ehci_qh *qh)
411 * active high speed queues may need bigger delays... 412 * active high speed queues may need bigger delays...
412 */ 413 */
413 if (list_empty (&qh->qtd_list) 414 if (list_empty (&qh->qtd_list)
414 || (__constant_cpu_to_le32 (0x0ff << 8) 415 || (__constant_cpu_to_le32 (QH_CMASK)
415 & qh->hw_info2) != 0) 416 & qh->hw_info2) != 0)
416 wait = 2; 417 wait = 2;
417 else 418 else
@@ -533,7 +534,7 @@ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh)
533 534
534 /* reuse the previous schedule slots, if we can */ 535 /* reuse the previous schedule slots, if we can */
535 if (frame < qh->period) { 536 if (frame < qh->period) {
536 uframe = ffs (le32_to_cpup (&qh->hw_info2) & 0x00ff); 537 uframe = ffs (le32_to_cpup (&qh->hw_info2) & QH_SMASK);
537 status = check_intr_schedule (ehci, frame, --uframe, 538 status = check_intr_schedule (ehci, frame, --uframe,
538 qh, &c_mask); 539 qh, &c_mask);
539 } else { 540 } else {
@@ -569,10 +570,10 @@ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh)
569 qh->start = frame; 570 qh->start = frame;
570 571
571 /* reset S-frame and (maybe) C-frame masks */ 572 /* reset S-frame and (maybe) C-frame masks */
572 qh->hw_info2 &= __constant_cpu_to_le32 (~0xffff); 573 qh->hw_info2 &= __constant_cpu_to_le32(~(QH_CMASK | QH_SMASK));
573 qh->hw_info2 |= qh->period 574 qh->hw_info2 |= qh->period
574 ? cpu_to_le32 (1 << uframe) 575 ? cpu_to_le32 (1 << uframe)
575 : __constant_cpu_to_le32 (0xff); 576 : __constant_cpu_to_le32 (QH_SMASK);
576 qh->hw_info2 |= c_mask; 577 qh->hw_info2 |= c_mask;
577 } else 578 } else
578 ehci_dbg (ehci, "reused qh %p schedule\n", qh); 579 ehci_dbg (ehci, "reused qh %p schedule\n", qh);
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 4df498231752..a7542157534c 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -385,6 +385,11 @@ struct ehci_qh {
385 __le32 hw_info1; /* see EHCI 3.6.2 */ 385 __le32 hw_info1; /* see EHCI 3.6.2 */
386#define QH_HEAD 0x00008000 386#define QH_HEAD 0x00008000
387 __le32 hw_info2; /* see EHCI 3.6.2 */ 387 __le32 hw_info2; /* see EHCI 3.6.2 */
388#define QH_SMASK 0x000000ff
389#define QH_CMASK 0x0000ff00
390#define QH_HUBADDR 0x007f0000
391#define QH_HUBPORT 0x3f800000
392#define QH_MULT 0xc0000000
388 __le32 hw_current; /* qtd list - see EHCI 3.6.4 */ 393 __le32 hw_current; /* qtd list - see EHCI 3.6.4 */
389 394
390 /* qtd overlay (hardware parts of a struct ehci_qtd) */ 395 /* qtd overlay (hardware parts of a struct ehci_qtd) */