diff options
| author | Koen Kooi <koen@openembedded.org> | 2008-09-10 15:49:01 +0000 |
|---|---|---|
| committer | Koen Kooi <koen@openembedded.org> | 2008-09-10 15:49:01 +0000 |
| commit | ee57b4022ac291e79b511854e7d2176ee09d9248 (patch) | |
| tree | a95a84874cd79ddb9f17f0f5b17f4a69c13dfd4f /packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml | |
| parent | 81ffc8a27d12a2b657b579ff382fe1baa1f3b1f9 (diff) | |
linux omap git: rearrage patches: musb still doesn't work, even with the magic xceiv patch, display is locked at 640x480 due to DPLL misconfig
Diffstat (limited to 'packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml')
| -rw-r--r-- | packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml b/packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml new file mode 100644 index 0000000000..0054093603 --- /dev/null +++ b/packages/linux/linux-omap/musb-support-high-bandwidth.patch.eml @@ -0,0 +1,134 @@ +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
+
+--
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