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path: root/drivers/usb/musb
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-rw-r--r--drivers/usb/musb/musb_core.c6
-rw-r--r--drivers/usb/musb/musb_debug.h4
-rw-r--r--drivers/usb/musb/musb_host.c159
-rw-r--r--drivers/usb/musb/musb_host.h1
-rw-r--r--drivers/usb/musb/omap2430.c2
-rw-r--r--drivers/usb/musb/tusb6010.c2
6 files changed, 111 insertions, 63 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 4a35745b30be..5280dba9b1fb 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -114,8 +114,8 @@
114 114
115 115
116 116
117unsigned debug; 117unsigned musb_debug;
118module_param(debug, uint, S_IRUGO | S_IWUSR); 118module_param(musb_debug, uint, S_IRUGO | S_IWUSR);
119MODULE_PARM_DESC(debug, "Debug message level. Default = 0"); 119MODULE_PARM_DESC(debug, "Debug message level. Default = 0");
120 120
121#define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia" 121#define DRIVER_AUTHOR "Mentor Graphics, Texas Instruments, Nokia"
@@ -2248,7 +2248,7 @@ static int __init musb_init(void)
2248 "host" 2248 "host"
2249#endif 2249#endif
2250 ", debug=%d\n", 2250 ", debug=%d\n",
2251 musb_driver_name, debug); 2251 musb_driver_name, musb_debug);
2252 return platform_driver_probe(&musb_driver, musb_probe); 2252 return platform_driver_probe(&musb_driver, musb_probe);
2253} 2253}
2254 2254
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index 4d2794441b15..9fc1db44c72c 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -48,11 +48,11 @@
48 __func__, __LINE__ , ## args); \ 48 __func__, __LINE__ , ## args); \
49 } } while (0) 49 } } while (0)
50 50
51extern unsigned debug; 51extern unsigned musb_debug;
52 52
53static inline int _dbg_level(unsigned l) 53static inline int _dbg_level(unsigned l)
54{ 54{
55 return debug >= l; 55 return musb_debug >= l;
56} 56}
57 57
58#define DBG(level, fmt, args...) xprintk(level, KERN_DEBUG, fmt, ## args) 58#define DBG(level, fmt, args...) xprintk(level, KERN_DEBUG, fmt, ## args)
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 3133990f04ec..e45e70bcc5e2 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -378,6 +378,19 @@ musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
378 378
379 switch (qh->type) { 379 switch (qh->type) {
380 380
381 case USB_ENDPOINT_XFER_CONTROL:
382 case USB_ENDPOINT_XFER_BULK:
383 /* fifo policy for these lists, except that NAKing
384 * should rotate a qh to the end (for fairness).
385 */
386 if (qh->mux == 1) {
387 head = qh->ring.prev;
388 list_del(&qh->ring);
389 kfree(qh);
390 qh = first_qh(head);
391 break;
392 }
393
381 case USB_ENDPOINT_XFER_ISOC: 394 case USB_ENDPOINT_XFER_ISOC:
382 case USB_ENDPOINT_XFER_INT: 395 case USB_ENDPOINT_XFER_INT:
383 /* this is where periodic bandwidth should be 396 /* this is where periodic bandwidth should be
@@ -388,17 +401,6 @@ musb_giveback(struct musb_qh *qh, struct urb *urb, int status)
388 kfree(qh); 401 kfree(qh);
389 qh = NULL; 402 qh = NULL;
390 break; 403 break;
391
392 case USB_ENDPOINT_XFER_CONTROL:
393 case USB_ENDPOINT_XFER_BULK:
394 /* fifo policy for these lists, except that NAKing
395 * should rotate a qh to the end (for fairness).
396 */
397 head = qh->ring.prev;
398 list_del(&qh->ring);
399 kfree(qh);
400 qh = first_qh(head);
401 break;
402 } 404 }
403 } 405 }
404 return qh; 406 return qh;
@@ -1507,10 +1509,29 @@ void musb_host_rx(struct musb *musb, u8 epnum)
1507 musb_writew(hw_ep->regs, MUSB_RXCSR, val); 1509 musb_writew(hw_ep->regs, MUSB_RXCSR, val);
1508 1510
1509#ifdef CONFIG_USB_INVENTRA_DMA 1511#ifdef CONFIG_USB_INVENTRA_DMA
1512 if (usb_pipeisoc(pipe)) {
1513 struct usb_iso_packet_descriptor *d;
1514
1515 d = urb->iso_frame_desc + qh->iso_idx;
1516 d->actual_length = xfer_len;
1517
1518 /* even if there was an error, we did the dma
1519 * for iso_frame_desc->length
1520 */
1521 if (d->status != EILSEQ && d->status != -EOVERFLOW)
1522 d->status = 0;
1523
1524 if (++qh->iso_idx >= urb->number_of_packets)
1525 done = true;
1526 else
1527 done = false;
1528
1529 } else {
1510 /* done if urb buffer is full or short packet is recd */ 1530 /* done if urb buffer is full or short packet is recd */
1511 done = (urb->actual_length + xfer_len >= 1531 done = (urb->actual_length + xfer_len >=
1512 urb->transfer_buffer_length 1532 urb->transfer_buffer_length
1513 || dma->actual_len < qh->maxpacket); 1533 || dma->actual_len < qh->maxpacket);
1534 }
1514 1535
1515 /* send IN token for next packet, without AUTOREQ */ 1536 /* send IN token for next packet, without AUTOREQ */
1516 if (!done) { 1537 if (!done) {
@@ -1547,7 +1568,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
1547 if (dma) { 1568 if (dma) {
1548 struct dma_controller *c; 1569 struct dma_controller *c;
1549 u16 rx_count; 1570 u16 rx_count;
1550 int ret; 1571 int ret, length;
1572 dma_addr_t buf;
1551 1573
1552 rx_count = musb_readw(epio, MUSB_RXCOUNT); 1574 rx_count = musb_readw(epio, MUSB_RXCOUNT);
1553 1575
@@ -1560,6 +1582,35 @@ void musb_host_rx(struct musb *musb, u8 epnum)
1560 1582
1561 c = musb->dma_controller; 1583 c = musb->dma_controller;
1562 1584
1585 if (usb_pipeisoc(pipe)) {
1586 int status = 0;
1587 struct usb_iso_packet_descriptor *d;
1588
1589 d = urb->iso_frame_desc + qh->iso_idx;
1590
1591 if (iso_err) {
1592 status = -EILSEQ;
1593 urb->error_count++;
1594 }
1595 if (rx_count > d->length) {
1596 if (status == 0) {
1597 status = -EOVERFLOW;
1598 urb->error_count++;
1599 }
1600 DBG(2, "** OVERFLOW %d into %d\n",\
1601 rx_count, d->length);
1602
1603 length = d->length;
1604 } else
1605 length = rx_count;
1606 d->status = status;
1607 buf = urb->transfer_dma + d->offset;
1608 } else {
1609 length = rx_count;
1610 buf = urb->transfer_dma +
1611 urb->actual_length;
1612 }
1613
1563 dma->desired_mode = 0; 1614 dma->desired_mode = 0;
1564#ifdef USE_MODE1 1615#ifdef USE_MODE1
1565 /* because of the issue below, mode 1 will 1616 /* because of the issue below, mode 1 will
@@ -1571,6 +1622,12 @@ void musb_host_rx(struct musb *musb, u8 epnum)
1571 urb->actual_length) 1622 urb->actual_length)
1572 > qh->maxpacket) 1623 > qh->maxpacket)
1573 dma->desired_mode = 1; 1624 dma->desired_mode = 1;
1625 if (rx_count < hw_ep->max_packet_sz_rx) {
1626 length = rx_count;
1627 dma->bDesiredMode = 0;
1628 } else {
1629 length = urb->transfer_buffer_length;
1630 }
1574#endif 1631#endif
1575 1632
1576/* Disadvantage of using mode 1: 1633/* Disadvantage of using mode 1:
@@ -1608,12 +1665,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
1608 */ 1665 */
1609 ret = c->channel_program( 1666 ret = c->channel_program(
1610 dma, qh->maxpacket, 1667 dma, qh->maxpacket,
1611 dma->desired_mode, 1668 dma->desired_mode, buf, length);
1612 urb->transfer_dma
1613 + urb->actual_length,
1614 (dma->desired_mode == 0)
1615 ? rx_count
1616 : urb->transfer_buffer_length);
1617 1669
1618 if (!ret) { 1670 if (!ret) {
1619 c->channel_release(dma); 1671 c->channel_release(dma);
@@ -1631,19 +1683,6 @@ void musb_host_rx(struct musb *musb, u8 epnum)
1631 } 1683 }
1632 } 1684 }
1633 1685
1634 if (dma && usb_pipeisoc(pipe)) {
1635 struct usb_iso_packet_descriptor *d;
1636 int iso_stat = status;
1637
1638 d = urb->iso_frame_desc + qh->iso_idx;
1639 d->actual_length += xfer_len;
1640 if (iso_err) {
1641 iso_stat = -EILSEQ;
1642 urb->error_count++;
1643 }
1644 d->status = iso_stat;
1645 }
1646
1647finish: 1686finish:
1648 urb->actual_length += xfer_len; 1687 urb->actual_length += xfer_len;
1649 qh->offset += xfer_len; 1688 qh->offset += xfer_len;
@@ -1671,22 +1710,9 @@ static int musb_schedule(
1671 struct list_head *head = NULL; 1710 struct list_head *head = NULL;
1672 1711
1673 /* use fixed hardware for control and bulk */ 1712 /* use fixed hardware for control and bulk */
1674 switch (qh->type) { 1713 if (qh->type == USB_ENDPOINT_XFER_CONTROL) {
1675 case USB_ENDPOINT_XFER_CONTROL:
1676 head = &musb->control; 1714 head = &musb->control;
1677 hw_ep = musb->control_ep; 1715 hw_ep = musb->control_ep;
1678 break;
1679 case USB_ENDPOINT_XFER_BULK:
1680 hw_ep = musb->bulk_ep;
1681 if (is_in)
1682 head = &musb->in_bulk;
1683 else
1684 head = &musb->out_bulk;
1685 break;
1686 }
1687 if (head) {
1688 idle = list_empty(head);
1689 list_add_tail(&qh->ring, head);
1690 goto success; 1716 goto success;
1691 } 1717 }
1692 1718
@@ -1725,19 +1751,34 @@ static int musb_schedule(
1725 else 1751 else
1726 diff = hw_ep->max_packet_sz_tx - qh->maxpacket; 1752 diff = hw_ep->max_packet_sz_tx - qh->maxpacket;
1727 1753
1728 if (diff > 0 && best_diff > diff) { 1754 if (diff >= 0 && best_diff > diff) {
1729 best_diff = diff; 1755 best_diff = diff;
1730 best_end = epnum; 1756 best_end = epnum;
1731 } 1757 }
1732 } 1758 }
1733 if (best_end < 0) 1759 /* use bulk reserved ep1 if no other ep is free */
1760 if (best_end > 0 && qh->type == USB_ENDPOINT_XFER_BULK) {
1761 hw_ep = musb->bulk_ep;
1762 if (is_in)
1763 head = &musb->in_bulk;
1764 else
1765 head = &musb->out_bulk;
1766 goto success;
1767 } else if (best_end < 0) {
1734 return -ENOSPC; 1768 return -ENOSPC;
1769 }
1735 1770
1736 idle = 1; 1771 idle = 1;
1772 qh->mux = 0;
1737 hw_ep = musb->endpoints + best_end; 1773 hw_ep = musb->endpoints + best_end;
1738 musb->periodic[best_end] = qh; 1774 musb->periodic[best_end] = qh;
1739 DBG(4, "qh %p periodic slot %d\n", qh, best_end); 1775 DBG(4, "qh %p periodic slot %d\n", qh, best_end);
1740success: 1776success:
1777 if (head) {
1778 idle = list_empty(head);
1779 list_add_tail(&qh->ring, head);
1780 qh->mux = 1;
1781 }
1741 qh->hw_ep = hw_ep; 1782 qh->hw_ep = hw_ep;
1742 qh->hep->hcpriv = qh; 1783 qh->hep->hcpriv = qh;
1743 if (idle) 1784 if (idle)
@@ -2015,11 +2056,13 @@ static int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
2015 sched = &musb->control; 2056 sched = &musb->control;
2016 break; 2057 break;
2017 case USB_ENDPOINT_XFER_BULK: 2058 case USB_ENDPOINT_XFER_BULK:
2018 if (usb_pipein(urb->pipe)) 2059 if (qh->mux == 1) {
2019 sched = &musb->in_bulk; 2060 if (usb_pipein(urb->pipe))
2020 else 2061 sched = &musb->in_bulk;
2021 sched = &musb->out_bulk; 2062 else
2022 break; 2063 sched = &musb->out_bulk;
2064 break;
2065 }
2023 default: 2066 default:
2024 /* REVISIT when we get a schedule tree, periodic 2067 /* REVISIT when we get a schedule tree, periodic
2025 * transfers won't always be at the head of a 2068 * transfers won't always be at the head of a
@@ -2067,11 +2110,13 @@ musb_h_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep)
2067 sched = &musb->control; 2110 sched = &musb->control;
2068 break; 2111 break;
2069 case USB_ENDPOINT_XFER_BULK: 2112 case USB_ENDPOINT_XFER_BULK:
2070 if (is_in) 2113 if (qh->mux == 1) {
2071 sched = &musb->in_bulk; 2114 if (is_in)
2072 else 2115 sched = &musb->in_bulk;
2073 sched = &musb->out_bulk; 2116 else
2074 break; 2117 sched = &musb->out_bulk;
2118 break;
2119 }
2075 default: 2120 default:
2076 /* REVISIT when we get a schedule tree, periodic transfers 2121 /* REVISIT when we get a schedule tree, periodic transfers
2077 * won't always be at the head of a singleton queue... 2122 * won't always be at the head of a singleton queue...
diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
index 77bcdb9d5b32..0b7fbcd21963 100644
--- a/drivers/usb/musb/musb_host.h
+++ b/drivers/usb/musb/musb_host.h
@@ -53,6 +53,7 @@ struct musb_qh {
53 53
54 struct list_head ring; /* of musb_qh */ 54 struct list_head ring; /* of musb_qh */
55 /* struct musb_qh *next; */ /* for periodic tree */ 55 /* struct musb_qh *next; */ /* for periodic tree */
56 u8 mux; /* qh multiplexed to hw_ep */
56 57
57 unsigned offset; /* in urb->transfer_buffer */ 58 unsigned offset; /* in urb->transfer_buffer */
58 unsigned segsize; /* current xfer fragment */ 59 unsigned segsize; /* current xfer fragment */
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 9d2dcb121c5e..ce6c162920f7 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -53,7 +53,9 @@ static void musb_do_idle(unsigned long _musb)
53{ 53{
54 struct musb *musb = (void *)_musb; 54 struct musb *musb = (void *)_musb;
55 unsigned long flags; 55 unsigned long flags;
56#ifdef CONFIG_USB_MUSB_HDRC_HCD
56 u8 power; 57 u8 power;
58#endif
57 u8 devctl; 59 u8 devctl;
58 60
59 devctl = musb_readb(musb->mregs, MUSB_DEVCTL); 61 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index b73b036f3d77..ee8fca92a4ac 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -605,7 +605,7 @@ void musb_platform_set_mode(struct musb *musb, u8 musb_mode)
605 605
606 if (musb->board_mode != MUSB_OTG) { 606 if (musb->board_mode != MUSB_OTG) {
607 ERR("Changing mode currently only supported in OTG mode\n"); 607 ERR("Changing mode currently only supported in OTG mode\n");
608 return; 608 return -EINVAL;
609 } 609 }
610 610
611 otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT); 611 otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);