diff options
Diffstat (limited to 'sys/dev/usb/usb_subr.c')
| -rw-r--r-- | sys/dev/usb/usb_subr.c | 49 |
1 files changed, 30 insertions, 19 deletions
diff --git a/sys/dev/usb/usb_subr.c b/sys/dev/usb/usb_subr.c index cda20113d4a..928907f945f 100644 --- a/sys/dev/usb/usb_subr.c +++ b/sys/dev/usb/usb_subr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: usb_subr.c,v 1.64 2007/11/04 05:52:36 deraadt Exp $ */ +/* $OpenBSD: usb_subr.c,v 1.65 2008/05/19 14:05:43 fgsch Exp $ */ /* $NetBSD: usb_subr.c,v 1.103 2003/01/10 11:19:13 augustss Exp $ */ /* $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $ */ @@ -979,6 +979,7 @@ usbd_new_device(struct device *parent, usbd_bus_handle bus, int depth, usbd_device_handle dev, adev; struct usbd_device *hub; usb_device_descriptor_t *dd; + usb_port_status_t ps; usbd_status err; int addr; int i; @@ -1049,15 +1050,40 @@ usbd_new_device(struct device *parent, usbd_bus_handle bus, int depth, return (err); } + /* Set the address. Do this early; some devices need that. */ + /* Try a few times in case the device is slow (i.e. outside specs.) */ + DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr)); + for (i = 0; i < 15; i++) { + err = usbd_set_address(dev, addr); + if (!err) + break; + if ((i % 4) == 0) + usbd_reset_port(up->parent, port, &ps); + else + usbd_delay_ms(dev, 200); + } + if (err) { + DPRINTFN(-1,("usbd_new_device: set address %d failed\n", addr)); + err = USBD_SET_ADDR_FAILED; + usbd_remove_device(dev, up); + return (err); + } + /* Allow device time to set new address */ + usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); + dev->address = addr; /* New device address now */ + bus->devices[addr] = dev; + dd = &dev->ddesc; /* Try a few times in case the device is slow (i.e. outside specs.) */ - for (i = 0; i < 5; i++) { + for (i = 0; i < 15; i++) { /* Get the first 8 bytes of the device descriptor. */ err = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, dd); if (!err) break; - /* progressively increase the delay */ - usbd_delay_ms(dev, 200 * (i + 1)); + if ((i % 4) == 0) + usbd_reset_port(up->parent, port, &ps); + else + usbd_delay_ms(dev, 200); } if (err) { DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc " @@ -1107,21 +1133,6 @@ usbd_new_device(struct device *parent, usbd_bus_handle bus, int depth, return (err); } - /* Set the address */ - DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr)); - err = usbd_set_address(dev, addr); - if (err) { - DPRINTFN(-1,("usbd_new_device: set address %d failed\n", addr)); - err = USBD_SET_ADDR_FAILED; - usbd_remove_device(dev, up); - return (err); - } - /* Allow device time to set new address */ - usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); - - dev->address = addr; /* New device address now */ - bus->devices[addr] = dev; - /* Assume 100mA bus powered for now. Changed when configured. */ dev->power = USB_MIN_POWER; dev->self_powered = 0; |