From f5fe87fccd6f5d246574ef0cf5e55a5ce7eab615 Mon Sep 17 00:00:00 2001
From: joe <joe@FreeBSD.org>
Date: Mon, 1 Apr 2002 18:22:31 +0000
Subject: Merge from NetBSD:

    revision 1.81
    date: 2000/10/24 15:01:26;  author: augustss;  lines: +36 -10
    Add a hack to try and figure out if the TI UTUSB41 hub is bus
    powered despite claiming to be self powered (it's important to
    know so that the power budget can be met).
---
 sys/dev/usb/usb_subr.c | 52 ++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 38 insertions(+), 14 deletions(-)

(limited to 'sys')

diff --git a/sys/dev/usb/usb_subr.c b/sys/dev/usb/usb_subr.c
index b4051b4..66e7614 100644
--- a/sys/dev/usb/usb_subr.c
+++ b/sys/dev/usb/usb_subr.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: usb_subr.c,v 1.72 2000/04/14 14:13:56 augustss Exp $	*/
+/*	$NetBSD: usb_subr.c,v 1.81 2000/10/24 15:01:26 augustss Exp $	*/
 /*	$FreeBSD$	*/
 
 /*
@@ -600,18 +600,43 @@ usbd_set_config_index(usbd_device_handle dev, int index, int msg)
 		/* May be self powered. */
 		if (cdp->bmAttributes & UC_BUS_POWERED) {
 			/* Must ask device. */
-			err = usbd_get_device_status(dev, &ds);
-			if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED))
-				selfpowered = 1;
-			DPRINTF(("usbd_set_config_index: status=0x%04x, "
-				 "error=%s\n",
-				 UGETW(ds.wStatus), usbd_errstr(err)));
+			if (dev->quirks->uq_flags & UQ_POWER_CLAIM) {
+				/*
+				 * Hub claims to be self powered, but isn't.
+				 * It seems that the power status can be
+				 * determined by the hub characteristics.
+				 */
+				usb_hub_descriptor_t hd;
+				usb_device_request_t req;
+				req.bmRequestType = UT_READ_CLASS_DEVICE;
+				req.bRequest = UR_GET_DESCRIPTOR;
+				USETW(req.wValue, 0);
+				USETW(req.wIndex, 0);
+				USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE);
+				err = usbd_do_request(dev, &req, &hd);
+				if (!err &&
+				    (UGETW(hd.wHubCharacteristics) &
+				     UHD_PWR_INDIVIDUAL))
+					selfpowered = 1;
+				DPRINTF(("usbd_set_config_index: charac=0x%04x"
+				    ", error=%s\n",
+				    UGETW(hd.wHubCharacteristics),
+				    usbd_errstr(err)));
+			} else {
+				err = usbd_get_device_status(dev, &ds);
+				if (!err &&
+				    (UGETW(ds.wStatus) & UDS_SELF_POWERED))
+					selfpowered = 1;
+				DPRINTF(("usbd_set_config_index: status=0x%04x"
+				    ", error=%s\n",
+				    UGETW(ds.wStatus), usbd_errstr(err)));
+			}
 		} else
 			selfpowered = 1;
 	}
-	DPRINTF(("usbd_set_config_index: (addr %d) attr=0x%02x, "
-		 "selfpowered=%d, power=%d\n", 
-		 dev->address, cdp->bmAttributes, 
+	DPRINTF(("usbd_set_config_index: (addr %d) cno=%d attr=0x%02x, "
+		 "selfpowered=%d, power=%d\n",
+		 cdp->bConfigurationValue, dev->address, cdp->bmAttributes, 
 		 selfpowered, cdp->bMaxPower * 2));
 
 	/* Check if we have enough power. */
@@ -623,7 +648,6 @@ usbd_set_config_index(usbd_device_handle dev, int index, int msg)
 #endif
 	power = cdp->bMaxPower * 2;
 	if (power > dev->powersrc->power) {
-		DPRINTF(("power exceeded %d %d\n", power,dev->powersrc->power));
 		/* XXX print nicer message. */
 		if (msg)
 			printf("%s: device addr %d (config %d) exceeds power "
@@ -904,7 +928,7 @@ usbd_probe_and_attach(device_ptr_t parent, usbd_device_handle dev,
  */
 usbd_status
 usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth,
-		int lowspeed, int port, struct usbd_port *up)
+		int speed, int port, struct usbd_port *up)
 {
 	usbd_device_handle dev;
 	usb_device_descriptor_t *dd;
@@ -912,8 +936,8 @@ usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth,
 	int addr;
 	int i;
 
-	DPRINTF(("usbd_new_device bus=%p port=%d depth=%d lowspeed=%d\n",
-		 bus, port, depth, lowspeed));
+	DPRINTF(("usbd_new_device bus=%p port=%d depth=%d speed=%d\n",
+		 bus, port, depth, speed));
 	addr = usbd_getnewaddr(bus);
 	if (addr < 0) {
 		printf("%s: No free USB addresses, new device ignored.\n", 
-- 
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