Add support for AX88772D.

AX88772D is a USB 2.0 device.  It is very similar to AX88179A overall.
The most significant difference is that AX88179A supports 1000Mbps speeds
while AX88772D does not.

grammer fix from jmc@

ok miod@

4 files changed, 29 insertions, 12 deletions

diff --git a/share/man/man4/axen.4 b/share/man/man4/axen.4
index 81ca9bab06a..5fb1ad0ac3f 100644
--- a/share/man/man4/axen.4
+++ b/share/man/man4/axen.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: axen.4,v 1.10 2024/01/04 08:41:59 kevlo Exp $
+.\"	$OpenBSD: axen.4,v 1.11 2024/10/07 07:35:40 kevlo Exp $
 .\"
 .\" Copyright (c) 2013 Yojiro UO <yuo@nui.org>
 .\"
@@ -14,12 +14,12 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: January 4 2024 $
+.Dd $Mdocdate: October 7 2024 $
 .Dt AXEN 4
 .Os
 .Sh NAME
 .Nm axen
-.Nd ASIX Electronics AX88179/AX88179A 10/100/1Gb USB Ethernet device
+.Nd ASIX Electronics AX88179/AX88179A/AX88772D 10/100/1Gb USB Ethernet device
 .Sh SYNOPSIS
 .Cd "axen*   at uhub?"
 .Cd "rgephy* at mii?"
@@ -28,7 +28,7 @@
 The
 .Nm
 driver provides support for USB Ethernet adapters based on the ASIX
-Electronics AX88179/AX88179A USB 3.0 chipset, including the following:
+Electronics AX88179/AX88179A/AX88772D chipset, including the following:
 .Pp
 .Bl -tag -width Ds -offset indent -compact
 .It D-Link DUB-1312
@@ -38,8 +38,14 @@ Electronics AX88179/AX88179A USB 3.0 chipset, including the following:
 .It StarTech USB31000S
 .It TP-LINK UE300C v2
 .It TP-Link UE306
+.It Ugreen CM650-15632
 .El
 .Pp
+The AX88772D is a USB 2.0 device which supports both
+10 and 100Mbps speeds in either full or half duplex.
+The AX88179 and AX88179A are USB 3.0 devices, which contain
+a 10/100/1Gb Ethernet MAC with a GMII/MII interface.
+.Pp
 The
 .Nm
 driver supports the following media types:
diff --git a/share/man/man4/usb.4 b/share/man/man4/usb.4
index c51113aa4a5..a4af3789a86 100644
--- a/share/man/man4/usb.4
+++ b/share/man/man4/usb.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: usb.4,v 1.219 2024/05/15 01:41:18 kevlo Exp $
+.\"	$OpenBSD: usb.4,v 1.220 2024/10/07 07:35:40 kevlo Exp $
 .\"	$NetBSD: usb.4,v 1.15 1999/07/29 14:20:32 augustss Exp $
 .\"
 .\" Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -28,7 +28,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: May 15 2024 $
+.Dd $Mdocdate: October 7 2024 $
 .Dt USB 4
 .Os
 .Sh NAME
@@ -112,7 +112,7 @@ ADMtek AN986/ADM8511 Pegasus family 10/100 USB Ethernet device
 .It Xr axe 4
 ASIX Electronics AX88172/AX88178/AX88772 10/100/1Gb USB Ethernet device
 .It Xr axen 4
-ASIX Electronics AX88179/AX88179A 10/100/1Gb USB Ethernet device
+ASIX Electronics AX88179/AX88179A/AX88772D 10/100/1Gb USB Ethernet device
 .It Xr cdce 4
 USB Communication Device Class Ethernet device
 .It Xr cue 4
diff --git a/sys/dev/usb/if_axen.c b/sys/dev/usb/if_axen.c
index cb384fa8352..12176504611 100644
--- a/sys/dev/usb/if_axen.c
+++ b/sys/dev/usb/if_axen.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_axen.c,v 1.33 2024/05/23 03:21:08 jsg Exp $	*/
+/*	$OpenBSD: if_axen.c,v 1.34 2024/10/07 07:35:40 kevlo Exp $	*/
 
 /*
  * Copyright (c) 2013 Yojiro UO <yuo@openbsd.org>
@@ -17,7 +17,7 @@
  */
 
 /*
- * ASIX Electronics AX88178a USB 2.0 ethernet and 
+ * ASIX Electronics AX88178a/AX88772d USB 2.0 ethernet and 
  * AX88179/AX88179a USB 3.0 Ethernet driver.
  */
 
@@ -251,6 +251,8 @@ axen_miibus_statchg(struct device *dev)
 			sc->axen_link++;
 			break;
 		    case IFM_1000_T:
+			if ((sc->axen_flags & AX772D) != 0)
+				break;
 			sc->axen_link++;
 			break;
 		    default:
@@ -658,8 +660,14 @@ axen_attach(struct device *parent, struct device *self, void *aux)
 	}
 
 	dd = usbd_get_device_descriptor(sc->axen_udev);
-	if (UGETW(dd->bcdDevice) == 0x200)
+	switch (UGETW(dd->bcdDevice)) {
+	case 0x200:
 		sc->axen_flags = AX179A;
+		break;
+	case 0x300:
+		sc->axen_flags = AX772D;
+		break;
+	}
 
 	s = splnet();
 
@@ -683,6 +691,8 @@ axen_attach(struct device *parent, struct device *self, void *aux)
 		printf(" AX88178a");
 	else if (sc->axen_flags & AX179)
 		printf(" AX88179");
+	else if (sc->axen_flags & AX772D)
+		printf(" AX88772D");
 	else
 		printf(" AX88179A");
 	printf(", address %s\n", ether_sprintf(eaddr));
@@ -968,7 +978,7 @@ axen_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status)
 	/* skip pseudo header (2byte) */
 	padlen = 2;
 	/* skip trailer padding (4Byte) for ax88179 */
-	if (!(sc->axen_flags & AX179A))
+	if (!(sc->axen_flags & (AX179A | AX772D)))
 		padlen += 4;
 
 	do {
diff --git a/sys/dev/usb/if_axenreg.h b/sys/dev/usb/if_axenreg.h
index 98be650b5eb..86ca2699a79 100644
--- a/sys/dev/usb/if_axenreg.h
+++ b/sys/dev/usb/if_axenreg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_axenreg.h,v 1.7 2024/01/04 08:41:59 kevlo Exp $	*/
+/*	$OpenBSD: if_axenreg.h,v 1.8 2024/10/07 07:35:40 kevlo Exp $	*/
 
 /*
  * Copyright (c) 2013 Yojiro UO <yuo@openbsd.org>. All right reserved.
@@ -228,6 +228,7 @@ struct axen_type {
 #define AX178A	0x0001		/* AX88178a */
 #define AX179	0x0002		/* AX88179 */
 #define AX179A	0x0004		/* AX88179a */
+#define AX772D	0x0008		/* AX88772d */
 };
 
 struct axen_softc;