diff mbox

[U-Boot,PATCHv2,5/5] net: asix: add AX88772B support

Message ID 1345669501-31007-6-git-send-email-dev@lynxeye.de
State Accepted
Delegated to: Joe Hershberger
Headers show

Commit Message

Lucas Stach Aug. 22, 2012, 9:05 p.m. UTC 
Add AX88772B ID together with two fixes needed to make this work.

1. The packet length check has to be adjusted, as all ASIX chips
only use 11 bits to indicate the length. AX88772B uses the other
bits to indicate unrelated things, which cause the check to fail.
This fix is based on a fix for the Linux kernel by Marek Vasut.
Linux upstream commit: bca0beb9363f8487ac902931a50eb00180a2d14a

2. AX88772B provides several bulk endpoints. Only the first
IN/OUT endpoints work in the default configuration. So stop
enumeration after we found them to avoid overwriting the
endpoint config with a non-working one.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
---
 drivers/usb/eth/asix.c | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

Comments

Joe Hershberger Sept. 28, 2012, 4:02 p.m. UTC | #1 
Hi Lucas,

On Wed, Aug 22, 2012 at 4:05 PM, Lucas Stach <dev@lynxeye.de> wrote:
> Add AX88772B ID together with two fixes needed to make this work.
>
> 1. The packet length check has to be adjusted, as all ASIX chips
> only use 11 bits to indicate the length. AX88772B uses the other
> bits to indicate unrelated things, which cause the check to fail.
> This fix is based on a fix for the Linux kernel by Marek Vasut.
> Linux upstream commit: bca0beb9363f8487ac902931a50eb00180a2d14a
>
> 2. AX88772B provides several bulk endpoints. Only the first
> IN/OUT endpoints work in the default configuration. So stop
> enumeration after we found them to avoid overwriting the
> endpoint config with a non-working one.
>
> Signed-off-by: Lucas Stach <dev@lynxeye.de>
> Reviewed-by: Marek Vasut <marex@denx.de>
> Acked-by: Marek Vasut <marex@denx.de>
> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
> ---

Failed checkpatch.pl

Fixed locally and applied.

Thanks,
-Joe
diff mbox

Patch

diff --git a/drivers/usb/eth/asix.c b/drivers/usb/eth/asix.c
index 0d57de4..2271cf2 100644
--- a/drivers/usb/eth/asix.c
+++ b/drivers/usb/eth/asix.c
@@ -104,7 +104,8 @@ 
 #define FLAG_NONE			0
 #define FLAG_TYPE_AX88172	(1U << 0)
 #define FLAG_TYPE_AX88772	(1U << 1)
-#define FLAG_EEPROM_MAC		(1U << 2) /* initial mac address in eeprom */
+#define FLAG_TYPE_AX88772B	(1U << 2)
+#define FLAG_EEPROM_MAC		(1U << 3) /* initial mac address in eeprom */
 
 /* local vars */
 static int curr_eth_dev; /* index for name of next device detected */
@@ -542,13 +543,13 @@  static int asix_recv(struct eth_device *eth)
 		}
 		memcpy(&packet_len, buf_ptr, sizeof(packet_len));
 		le32_to_cpus(&packet_len);
-		if (((packet_len >> 16) ^ 0xffff) != (packet_len & 0xffff)) {
+		if (((~packet_len >> 16) & 0x7ff) != (packet_len & 0x7ff)) {
 			debug("Rx: malformed packet length: %#x (%#x:%#x)\n",
-			      packet_len, (packet_len >> 16) ^ 0xffff,
-			      packet_len & 0xffff);
+			      packet_len, (~packet_len >> 16) & 0x7ff,
+			      packet_len & 0x7ff);
 			return -1;
 		}
-		packet_len = packet_len & 0xffff;
+		packet_len = packet_len & 0x7ff;
 		if (packet_len > actual_len - sizeof(packet_len)) {
 			debug("Rx: too large packet: %d\n", packet_len);
 			return -1;
@@ -596,6 +597,7 @@  static const struct asix_dongle const asix_dongles[] = {
 	{ 0x13b1, 0x0018, FLAG_TYPE_AX88172 },	/* Linksys 200M v2.1 */
 	{ 0x1557, 0x7720, FLAG_TYPE_AX88772 },	/* 0Q0 cable ethernet */
 	{ 0x2001, 0x3c05, FLAG_TYPE_AX88772 },	/* DLink DUB-E100 H/W Ver B1 Alternate */
+	{ 0x0b95, 0x772b, FLAG_TYPE_AX88772B | FLAG_EEPROM_MAC }, /* ASIX 88772B */
 	{ 0x0000, 0x0000, FLAG_NONE }	/* END - Do not remove */
 };
 
@@ -605,6 +607,7 @@  int asix_eth_probe(struct usb_device *dev, unsigned int ifnum,
 {
 	struct usb_interface *iface;
 	struct usb_interface_descriptor *iface_desc;
+	int ep_in_found = 0, ep_out_found = 0;
 	int i;
 
 	/* let's examine the device now */
@@ -648,13 +651,19 @@  int asix_eth_probe(struct usb_device *dev, unsigned int ifnum,
 		/* is it an BULK endpoint? */
 		if ((iface->ep_desc[i].bmAttributes &
 		     USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
-			if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN)
-				ss->ep_in = iface->ep_desc[i].bEndpointAddress &
-					USB_ENDPOINT_NUMBER_MASK;
-			else
-				ss->ep_out =
-					iface->ep_desc[i].bEndpointAddress &
-					USB_ENDPOINT_NUMBER_MASK;
+			if (iface->ep_desc[i].bEndpointAddress & USB_DIR_IN) {
+				if (!ep_in_found) {
+					ss->ep_in = iface->ep_desc[i].bEndpointAddress &
+					            USB_ENDPOINT_NUMBER_MASK;
+					ep_in_found = 1;
+				}
+			} else {
+				if (!ep_out_found) {
+					ss->ep_out = iface->ep_desc[i].bEndpointAddress &
+					             USB_ENDPOINT_NUMBER_MASK;
+					ep_out_found = 1;
+				}
+			}
 		}
 
 		/* is it an interrupt endpoint? */