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Merge from NetBSD:

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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).
This commit is contained in:
Josef Karthauser 2002-04-01 18:22:31 +00:00
parent c92b317966
commit b47a67cb20
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=93561
1 changed files with 38 additions and 14 deletions
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52
sys/dev/usb/usb_subr.c
View file

@ -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",