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author | thompsa <thompsa@FreeBSD.org> | 2009-03-05 16:15:07 +0000 |
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committer | thompsa <thompsa@FreeBSD.org> | 2009-03-05 16:15:07 +0000 |
commit | b361d86b12aff3f4070e243c13a0597d415825f1 (patch) | |
tree | f7be45db05c4932e22c963b690b5dfa193b3694d /sys/dev/usb | |
parent | 95e639db1b991fdc54d20f37e7074d73033bdcd8 (diff) | |
download | FreeBSD-src-b361d86b12aff3f4070e243c13a0597d415825f1.zip FreeBSD-src-b361d86b12aff3f4070e243c13a0597d415825f1.tar.gz |
Add support for the UNION interface descriptor, used by Nokia phones.
PR: usb/117185
Diffstat (limited to 'sys/dev/usb')
-rw-r--r-- | sys/dev/usb/serial/umodem.c | 49 |
1 files changed, 22 insertions, 27 deletions
diff --git a/sys/dev/usb/serial/umodem.c b/sys/dev/usb/serial/umodem.c index 88c5dd9..9960635 100644 --- a/sys/dev/usb/serial/umodem.c +++ b/sys/dev/usb/serial/umodem.c @@ -69,6 +69,7 @@ __FBSDID("$FreeBSD$"); /* * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf + * http://www.usb.org/developers/devclass_docs/cdc_wmc10.zip */ /* @@ -253,8 +254,6 @@ static int umodem_probe(device_t dev) { struct usb2_attach_arg *uaa = device_get_ivars(dev); - uint8_t cm; - uint8_t acm; int error; DPRINTFN(11, "\n"); @@ -263,19 +262,6 @@ umodem_probe(device_t dev) return (ENXIO); } error = usb2_lookup_id_by_uaa(umodem_devs, sizeof(umodem_devs), uaa); - if (error) { - return (error); - } - if (uaa->driver_info == NULL) { - /* some modems do not have any capabilities */ - return (error); - } - umodem_get_caps(uaa, &cm, &acm); - if (!(cm & USB_CDC_CM_DOES_CM) || - !(cm & USB_CDC_CM_OVER_DATA) || - !(acm & USB_CDC_ACM_HAS_LINE)) { - error = ENXIO; - } return (error); } @@ -285,6 +271,7 @@ umodem_attach(device_t dev) struct usb2_attach_arg *uaa = device_get_ivars(dev); struct umodem_softc *sc = device_get_softc(dev); struct usb2_cdc_cm_descriptor *cmd; + struct usb2_cdc_union_descriptor *cud; uint8_t i; int error; @@ -302,10 +289,20 @@ umodem_attach(device_t dev) cmd = umodem_get_desc(uaa, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM); if ((cmd == NULL) || (cmd->bLength < sizeof(*cmd))) { - device_printf(dev, "no CM descriptor!\n"); - goto detach; + + cud = usb2_find_descriptor(uaa->device, NULL, + uaa->info.bIfaceIndex, UDESC_CS_INTERFACE, + 0 - 1, UDESCSUB_CDC_UNION, 0 - 1); + + if ((cud == NULL) || (cud->bLength < sizeof(*cud))) { + device_printf(dev, "no CM or union descriptor!\n"); + goto detach; + } + + sc->sc_data_iface_no = cud->bSlaveInterface[0]; + } else { + sc->sc_data_iface_no = cmd->bDataInterface; } - sc->sc_data_iface_no = cmd->bDataInterface; device_printf(dev, "data interface %d, has %sCM over " "data, has %sbreak\n", @@ -419,21 +416,19 @@ umodem_get_caps(struct usb2_attach_arg *uaa, uint8_t *cm, uint8_t *acm) struct usb2_cdc_cm_descriptor *cmd; struct usb2_cdc_acm_descriptor *cad; - *cm = *acm = 0; - cmd = umodem_get_desc(uaa, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM); if ((cmd == NULL) || (cmd->bLength < sizeof(*cmd))) { - DPRINTF("no CM desc\n"); - return; - } - *cm = cmd->bmCapabilities; + DPRINTF("no CM desc (faking one)\n"); + *cm = USB_CDC_CM_DOES_CM | USB_CDC_CM_OVER_DATA; + } else + *cm = cmd->bmCapabilities; cad = umodem_get_desc(uaa, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM); if ((cad == NULL) || (cad->bLength < sizeof(*cad))) { DPRINTF("no ACM desc\n"); - return; - } - *acm = cad->bmCapabilities; + *acm = 0; + } else + *acm = cad->bmCapabilities; } static void |