summaryrefslogtreecommitdiff
path: root/packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml
blob: 0264a97045e0b58a0701819a91f4d7cf270e0aae (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
Enables support for camera (as creative) requiring high bandwidth
isochronous transfer.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
---
 drivers/usb/musb/musb_core.c |   18 +++++++++---------
 drivers/usb/musb/musb_host.c |   32 +++++++++++++++++++++-----------
 2 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index c939f81..9914f70 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1063,17 +1063,17 @@ static struct fifo_cfg __initdata mode_4_cfg[] = {
 { .hw_ep_num =  7, .style = FIFO_TX,   .maxpacket = 512, },
 { .hw_ep_num =  7, .style = FIFO_RX,   .maxpacket = 512, },
 { .hw_ep_num =  8, .style = FIFO_TX,   .maxpacket = 512, },
-{ .hw_ep_num =  8, .style = FIFO_RX,   .maxpacket = 512, },
+{ .hw_ep_num =  8, .style = FIFO_RX,   .maxpacket =  64, },
 { .hw_ep_num =  9, .style = FIFO_TX,   .maxpacket = 512, },
-{ .hw_ep_num =  9, .style = FIFO_RX,   .maxpacket = 512, },
+{ .hw_ep_num =  9, .style = FIFO_RX,   .maxpacket =  64, },
 { .hw_ep_num = 10, .style = FIFO_TX,   .maxpacket = 512, },
-{ .hw_ep_num = 10, .style = FIFO_RX,   .maxpacket = 512, },
-{ .hw_ep_num = 11, .style = FIFO_TX,   .maxpacket = 512, },
-{ .hw_ep_num = 11, .style = FIFO_RX,   .maxpacket = 512, },
-{ .hw_ep_num = 12, .style = FIFO_TX,   .maxpacket = 512, },
-{ .hw_ep_num = 12, .style = FIFO_RX,   .maxpacket = 512, },
-{ .hw_ep_num = 13, .style = FIFO_TX,   .maxpacket = 512, },
-{ .hw_ep_num = 13, .style = FIFO_RX,   .maxpacket = 512, },
+{ .hw_ep_num = 10, .style = FIFO_RX,   .maxpacket =  64, },
+{ .hw_ep_num = 11, .style = FIFO_TX,   .maxpacket = 256, },
+{ .hw_ep_num = 11, .style = FIFO_RX,   .maxpacket = 256, },
+{ .hw_ep_num = 12, .style = FIFO_TX,   .maxpacket = 256, },
+{ .hw_ep_num = 12, .style = FIFO_RX,   .maxpacket = 256, },
+{ .hw_ep_num = 13, .style = FIFO_TX,   .maxpacket = 256, },
+{ .hw_ep_num = 13, .style = FIFO_RX,   .maxpacket = 4096, },
 { .hw_ep_num = 14, .style = FIFO_RXTX, .maxpacket = 1024, },
 { .hw_ep_num = 15, .style = FIFO_RXTX, .maxpacket = 1024, },
 };
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 08e421f..84173df 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1443,6 +1443,10 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 			/* packet error reported later */
 			iso_err = true;
 		}
+	} else if (rx_csr & MUSB_RXCSR_INCOMPRX) {
+		DBG(3, "end %d Highbandwidth  incomplete ISO packet received\n"
+					, epnum);
+		status = -EPROTO;
 	}
 
 	/* faults abort the transfer */
@@ -1595,7 +1599,13 @@ void musb_host_rx(struct musb *musb, u8 epnum)
 				val &= ~MUSB_RXCSR_H_AUTOREQ;
 			else
 				val |= MUSB_RXCSR_H_AUTOREQ;
-			val |= MUSB_RXCSR_AUTOCLEAR | MUSB_RXCSR_DMAENAB;
+
+			if (qh->maxpacket & ~0x7ff)
+				/* Autoclear doesn't work in high bandwidth iso */
+				val |= MUSB_RXCSR_DMAENAB;
+			else
+				val |= MUSB_RXCSR_AUTOCLEAR
+					| MUSB_RXCSR_DMAENAB;
 
 			musb_writew(epio, MUSB_RXCSR,
 				MUSB_RXCSR_H_WZC_BITS | val);
@@ -1666,6 +1676,7 @@ static int musb_schedule(
 	int			best_end, epnum;
 	struct musb_hw_ep	*hw_ep = NULL;
 	struct list_head	*head = NULL;
+	u16 			maxpacket;
 
 	/* use fixed hardware for control and bulk */
 	switch (qh->type) {
@@ -1708,6 +1719,13 @@ static int musb_schedule(
 	best_diff = 4096;
 	best_end = -1;
 
+	if (qh->maxpacket & (1<<11))
+		maxpacket = 2 * (qh->maxpacket & 0x7ff);
+	else if (qh->maxpacket & (1<<12))
+		maxpacket = 3 * (qh->maxpacket & 0x7ff);
+	else
+		maxpacket = (qh->maxpacket & 0x7ff);
+
 	for (epnum = 1; epnum < musb->nr_endpoints; epnum++) {
 		int	diff;
 
@@ -1718,9 +1736,9 @@ static int musb_schedule(
 			continue;
 
 		if (is_in)
-			diff = hw_ep->max_packet_sz_rx - qh->maxpacket;
+			diff = hw_ep->max_packet_sz_rx - maxpacket;
 		else
-			diff = hw_ep->max_packet_sz_tx - qh->maxpacket;
+			diff = hw_ep->max_packet_sz_tx - maxpacket;
 
 		if (diff > 0 && best_diff > diff) {
 			best_diff = diff;
@@ -1797,13 +1815,6 @@ static int musb_urb_enqueue(
 	qh->is_ready = 1;
 
 	qh->maxpacket = le16_to_cpu(epd->wMaxPacketSize);
-
-	/* no high bandwidth support yet */
-	if (qh->maxpacket & ~0x7ff) {
-		ret = -EMSGSIZE;
-		goto done;
-	}
-
 	qh->epnum = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
 	qh->type = epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 
@@ -1897,7 +1908,6 @@ static int musb_urb_enqueue(
 	}
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-done:
 	if (ret != 0) {
 		usb_hcd_unlink_urb_from_ep(hcd, urb);
 		kfree(qh);
-- 
1.5.6

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html