static void uhid_write_callback(struct usb_xfer *xfer, usb_error_t error) { struct uhid_softc *sc = usbd_xfer_softc(xfer); struct usb_device_request req; struct usb_page_cache *pc; uint32_t size = sc->sc_osize; uint32_t actlen; uint8_t id; switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: case USB_ST_SETUP: /* try to extract the ID byte */ if (sc->sc_oid) { pc = usbd_xfer_get_frame(xfer, 0); if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc, 0, 1, &actlen, 0)) { if (actlen != 1) { goto tr_error; } usbd_copy_out(pc, 0, &id, 1); } else { return; } if (size) { size--; } } else { id = 0; } pc = usbd_xfer_get_frame(xfer, 1); if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc, 0, UHID_BSIZE, &actlen, 1)) { if (actlen != size) { goto tr_error; } uhid_fill_set_report (&req, sc->sc_iface_no, UHID_OUTPUT_REPORT, id, size); pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frame_len(xfer, 1, size); usbd_xfer_set_frames(xfer, size ? 2 : 1); usbd_transfer_submit(xfer); } return; default: tr_error: /* bomb out */ usb_fifo_get_data_error(sc->sc_fifo.fp[USB_FIFO_TX]); return; } }
static void uhso_mux_read_callback(struct usb_xfer *xfer, usb_error_t error) { struct uhso_softc *sc = usbd_xfer_softc(xfer); struct usb_page_cache *pc; struct usb_device_request req; struct uhso_tty *ht; int actlen, len; usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); UHSO_DPRINTF(3, "status %d\n", USB_GET_STATE(xfer)); ht = usbd_xfer_get_priv(xfer); UHSO_DPRINTF(3, "ht=%p open=%d\n", ht, ht->ht_open); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: /* Got data, send to ucom */ pc = usbd_xfer_get_frame(xfer, 1); len = usbd_xfer_frame_len(xfer, 1); UHSO_DPRINTF(3, "got %d bytes on mux port %d\n", len, ht->ht_muxport); if (len <= 0) { usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]); break; } /* Deliver data if the TTY is open, discard otherwise */ if (ht->ht_open) ucom_put_data(&sc->sc_ucom[ht->ht_muxport], pc, 0, len); /* FALLTHROUGH */ case USB_ST_SETUP: tr_setup: memset(&req, 0, sizeof(struct usb_device_request)); req.bmRequestType = UT_READ_CLASS_INTERFACE; req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE; USETW(req.wValue, 0); USETW(req.wIndex, ht->ht_muxport); USETW(req.wLength, 1024); pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frame_len(xfer, 1, 1024); usbd_xfer_set_frames(xfer, 2); usbd_transfer_submit(xfer); break; default: UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error)); if (error == USB_ERR_CANCELLED) break; usbd_xfer_set_stall(xfer); goto tr_setup; } }
static int usbd_m_copy_in_cb(void *arg, void *src, uint32_t count) { register struct usb_m_copy_in_arg *ua = arg; usbd_copy_in(ua->cache, ua->dst_offset, src, count); ua->dst_offset += count; return (0); }
static void uhso_mux_write_callback(struct usb_xfer *xfer, usb_error_t error) { struct uhso_softc *sc = usbd_xfer_softc(xfer); struct uhso_tty *ht; struct usb_page_cache *pc; struct usb_device_request req; int actlen; struct usb_page_search res; usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); ht = usbd_xfer_get_priv(xfer); UHSO_DPRINTF(3, "status=%d, using mux port %d\n", USB_GET_STATE(xfer), ht->ht_muxport); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: UHSO_DPRINTF(3, "wrote %zd data bytes to muxport %d\n", actlen - sizeof(struct usb_device_request) , ht->ht_muxport); /* FALLTHROUGH */ case USB_ST_SETUP: pc = usbd_xfer_get_frame(xfer, 1); if (ucom_get_data(&sc->sc_ucom[ht->ht_muxport], pc, 0, 32, &actlen)) { usbd_get_page(pc, 0, &res); memset(&req, 0, sizeof(struct usb_device_request)); req.bmRequestType = UT_WRITE_CLASS_INTERFACE; req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND; USETW(req.wValue, 0); USETW(req.wIndex, ht->ht_muxport); USETW(req.wLength, actlen); pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frame_len(xfer, 1, actlen); usbd_xfer_set_frames(xfer, 2); UHSO_DPRINTF(3, "Prepared %d bytes for transmit " "on muxport %d\n", actlen, ht->ht_muxport); usbd_transfer_submit(xfer); } break; default: UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error)); if (error == USB_ERR_CANCELLED) break; break; } }
static void uhid_read_callback(struct usb_xfer *xfer, usb_error_t error) { struct uhid_softc *sc = usbd_xfer_softc(xfer); struct usb_device_request req; struct usb_page_cache *pc; pc = usbd_xfer_get_frame(xfer, 0); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: usb_fifo_put_data(sc->sc_fifo.fp[USB_FIFO_RX], pc, sizeof(req), sc->sc_isize, 1); return; case USB_ST_SETUP: if (usb_fifo_put_bytes_max(sc->sc_fifo.fp[USB_FIFO_RX]) > 0) { uhid_fill_get_report (&req, sc->sc_iface_no, UHID_INPUT_REPORT, sc->sc_iid, sc->sc_isize); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frame_len(xfer, 1, sc->sc_isize); usbd_xfer_set_frames(xfer, sc->sc_isize ? 2 : 1); usbd_transfer_submit(xfer); } return; default: /* Error */ /* bomb out */ usb_fifo_put_data_error(sc->sc_fifo.fp[USB_FIFO_RX]); return; } }
/*------------------------------------------------------------------------* * usb_handle_request * * Internal state sequence: * * USB_HR_NOT_COMPLETE -> USB_HR_COMPLETE_OK v USB_HR_COMPLETE_ERR * * Returns: * 0: Ready to start hardware * Else: Stall current transfer, if any *------------------------------------------------------------------------*/ static usb_error_t usb_handle_request(struct usb_xfer *xfer) { struct usb_device_request req; struct usb_device *udev; const void *src_zcopy; /* zero-copy source pointer */ const void *src_mcopy; /* non zero-copy source pointer */ uint16_t off; /* data offset */ uint16_t rem; /* data remainder */ uint16_t max_len; /* max fragment length */ uint16_t wValue; uint16_t wIndex; uint8_t state; uint8_t is_complete = 1; usb_error_t err; union { uWord wStatus; uint8_t buf[2]; } temp; /* * Filter the USB transfer state into * something which we understand: */ switch (USB_GET_STATE(xfer)) { case USB_ST_SETUP: state = USB_HR_NOT_COMPLETE; if (!xfer->flags_int.control_act) { /* nothing to do */ goto tr_stalled; } break; case USB_ST_TRANSFERRED: if (!xfer->flags_int.control_act) { state = USB_HR_COMPLETE_OK; } else { state = USB_HR_NOT_COMPLETE; } break; default: state = USB_HR_COMPLETE_ERR; break; } /* reset frame stuff */ usbd_xfer_set_frame_len(xfer, 0, 0); usbd_xfer_set_frame_offset(xfer, 0, 0); usbd_xfer_set_frame_offset(xfer, sizeof(req), 1); /* get the current request, if any */ usbd_copy_out(xfer->frbuffers, 0, &req, sizeof(req)); if (xfer->flags_int.control_rem == 0xFFFF) { /* first time - not initialised */ rem = UGETW(req.wLength); off = 0; } else { /* not first time - initialised */ rem = xfer->flags_int.control_rem; off = UGETW(req.wLength) - rem; } /* set some defaults */ max_len = 0; src_zcopy = NULL; src_mcopy = NULL; udev = xfer->xroot->udev; /* get some request fields decoded */ wValue = UGETW(req.wValue); wIndex = UGETW(req.wIndex); DPRINTF("req 0x%02x 0x%02x 0x%04x 0x%04x " "off=0x%x rem=0x%x, state=%d\n", req.bmRequestType, req.bRequest, wValue, wIndex, off, rem, state); /* demultiplex the control request */ switch (req.bmRequestType) { case UT_READ_DEVICE: if (state != USB_HR_NOT_COMPLETE) { break; } switch (req.bRequest) { case UR_GET_DESCRIPTOR: goto tr_handle_get_descriptor; case UR_GET_CONFIG: goto tr_handle_get_config; case UR_GET_STATUS: goto tr_handle_get_status; default: goto tr_stalled; } break; case UT_WRITE_DEVICE: switch (req.bRequest) { case UR_SET_ADDRESS: goto tr_handle_set_address; case UR_SET_CONFIG: goto tr_handle_set_config; case UR_CLEAR_FEATURE: switch (wValue) { case UF_DEVICE_REMOTE_WAKEUP: goto tr_handle_clear_wakeup; default: goto tr_stalled; } break; case UR_SET_FEATURE: switch (wValue) { case UF_DEVICE_REMOTE_WAKEUP: goto tr_handle_set_wakeup; default: goto tr_stalled; } break; default: goto tr_stalled; } break; case UT_WRITE_ENDPOINT: switch (req.bRequest) { case UR_CLEAR_FEATURE: switch (wValue) { case UF_ENDPOINT_HALT: goto tr_handle_clear_halt; default: goto tr_stalled; } break; case UR_SET_FEATURE: switch (wValue) { case UF_ENDPOINT_HALT: goto tr_handle_set_halt; default: goto tr_stalled; } break; default: goto tr_stalled; } break; case UT_READ_ENDPOINT: switch (req.bRequest) { case UR_GET_STATUS: goto tr_handle_get_ep_status; default: goto tr_stalled; } break; default: /* we use "USB_ADD_BYTES" to de-const the src_zcopy */ err = usb_handle_iface_request(xfer, USB_ADD_BYTES(&src_zcopy, 0), &max_len, req, off, state); if (err == 0) { is_complete = 0; goto tr_valid; } else if (err == USB_ERR_SHORT_XFER) { goto tr_valid; } /* * Reset zero-copy pointer and max length * variable in case they were unintentionally * set: */ src_zcopy = NULL; max_len = 0; /* * Check if we have a vendor specific * descriptor: */ goto tr_handle_get_descriptor; } goto tr_valid; tr_handle_get_descriptor: err = (usb_temp_get_desc_p) (udev, &req, &src_zcopy, &max_len); if (err) goto tr_stalled; if (src_zcopy == NULL) goto tr_stalled; goto tr_valid; tr_handle_get_config: temp.buf[0] = udev->curr_config_no; src_mcopy = temp.buf; max_len = 1; goto tr_valid; tr_handle_get_status: wValue = 0; USB_BUS_LOCK(udev->bus); if (udev->flags.remote_wakeup) { wValue |= UDS_REMOTE_WAKEUP; } if (udev->flags.self_powered) { wValue |= UDS_SELF_POWERED; } USB_BUS_UNLOCK(udev->bus); USETW(temp.wStatus, wValue); src_mcopy = temp.wStatus; max_len = sizeof(temp.wStatus); goto tr_valid; tr_handle_set_address: if (state == USB_HR_NOT_COMPLETE) { if (wValue >= 0x80) { /* invalid value */ goto tr_stalled; } else if (udev->curr_config_no != 0) { /* we are configured ! */ goto tr_stalled; } } else if (state != USB_HR_NOT_COMPLETE) { udev->address = (wValue & 0x7F); goto tr_bad_context; } goto tr_valid; tr_handle_set_config: if (state == USB_HR_NOT_COMPLETE) { if (usb_handle_set_config(xfer, req.wValue[0])) { goto tr_stalled; } } goto tr_valid; tr_handle_clear_halt: if (state == USB_HR_NOT_COMPLETE) { if (usb_handle_set_stall(xfer, req.wIndex[0], 0)) { goto tr_stalled; } } goto tr_valid; tr_handle_clear_wakeup: if (state == USB_HR_NOT_COMPLETE) { if (usb_handle_remote_wakeup(xfer, 0)) { goto tr_stalled; } } goto tr_valid; tr_handle_set_halt: if (state == USB_HR_NOT_COMPLETE) { if (usb_handle_set_stall(xfer, req.wIndex[0], 1)) { goto tr_stalled; } } goto tr_valid; tr_handle_set_wakeup: if (state == USB_HR_NOT_COMPLETE) { if (usb_handle_remote_wakeup(xfer, 1)) { goto tr_stalled; } } goto tr_valid; tr_handle_get_ep_status: if (state == USB_HR_NOT_COMPLETE) { temp.wStatus[0] = usb_handle_get_stall(udev, req.wIndex[0]); temp.wStatus[1] = 0; src_mcopy = temp.wStatus; max_len = sizeof(temp.wStatus); } goto tr_valid; tr_valid: if (state != USB_HR_NOT_COMPLETE) { goto tr_stalled; } /* subtract offset from length */ max_len -= off; /* Compute the real maximum data length */ if (max_len > xfer->max_data_length) { max_len = usbd_xfer_max_len(xfer); } if (max_len > rem) { max_len = rem; } /* * If the remainder is greater than the maximum data length, * we need to truncate the value for the sake of the * comparison below: */ if (rem > xfer->max_data_length) { rem = usbd_xfer_max_len(xfer); } if ((rem != max_len) && (is_complete != 0)) { /* * If we don't transfer the data we can transfer, then * the transfer is short ! */ xfer->flags.force_short_xfer = 1; xfer->nframes = 2; } else { /* * Default case */ xfer->flags.force_short_xfer = 0; xfer->nframes = max_len ? 2 : 1; } if (max_len > 0) { if (src_mcopy) { src_mcopy = USB_ADD_BYTES(src_mcopy, off); usbd_copy_in(xfer->frbuffers + 1, 0, src_mcopy, max_len); usbd_xfer_set_frame_len(xfer, 1, max_len); } else { usbd_xfer_set_frame_data(xfer, 1, USB_ADD_BYTES(src_zcopy, off), max_len); } } else { /* the end is reached, send status */ xfer->flags.manual_status = 0; usbd_xfer_set_frame_len(xfer, 1, 0); } DPRINTF("success\n"); return (0); /* success */ tr_stalled: DPRINTF("%s\n", (state != USB_HR_NOT_COMPLETE) ? "complete" : "stalled"); return (USB_ERR_STALLED); tr_bad_context: DPRINTF("bad context\n"); return (USB_ERR_BAD_CONTEXT); }
static void usie_if_tx_callback(struct usb_xfer *xfer, usb_error_t error) { struct usie_softc *sc = usbd_xfer_softc(xfer); struct usb_page_cache *pc; struct ifnet *ifp = sc->sc_ifp; struct mbuf *m; uint16_t size; switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: DPRINTFN(11, "transfer complete\n"); ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; ifp->if_opackets++; /* fall though */ case USB_ST_SETUP: tr_setup: if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) break; IFQ_DRV_DEQUEUE(&ifp->if_snd, m); if (m == NULL) break; if (m->m_pkthdr.len > (MCLBYTES - ETHER_HDR_LEN + ETHER_CRC_LEN - sizeof(sc->sc_txd))) { DPRINTF("packet len is too big: %d\n", m->m_pkthdr.len); break; } pc = usbd_xfer_get_frame(xfer, 0); sc->sc_txd.hip.len = htobe16(m->m_pkthdr.len + ETHER_HDR_LEN + ETHER_CRC_LEN); size = sizeof(sc->sc_txd); usbd_copy_in(pc, 0, &sc->sc_txd, size); usbd_m_copy_in(pc, size, m, 0, m->m_pkthdr.len); usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len + size + ETHER_CRC_LEN); BPF_MTAP(ifp, m); m_freem(m); usbd_transfer_submit(xfer); break; default: /* Error */ DPRINTF("USB transfer error, %s\n", usbd_errstr(error)); ifp->if_oerrors++; if (error != USB_ERR_CANCELLED) { usbd_xfer_set_stall(xfer); ifp->if_ierrors++; goto tr_setup; } break; } }
static uint8_t cdce_ncm_fill_tx_frames(struct usb_xfer *xfer, uint8_t index) { struct cdce_softc *sc = usbd_xfer_softc(xfer); struct ifnet *ifp = uether_getifp(&sc->sc_ue); struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, index); struct mbuf *m; uint32_t rem; uint32_t offset; uint32_t last_offset; uint16_t n; uint8_t retval; usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index); offset = sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt) + sizeof(sc->sc_ncm.dp); /* Store last valid offset before alignment */ last_offset = offset; /* Align offset */ offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, offset, sc->sc_ncm.tx_modulus); /* Zero pad */ cdce_ncm_tx_zero(pc, last_offset, offset); /* buffer full */ retval = 2; for (n = 0; n != sc->sc_ncm.tx_nframe; n++) { /* check if end of transmit buffer is reached */ if (offset >= sc->sc_ncm.tx_max) break; /* compute maximum buffer size */ rem = sc->sc_ncm.tx_max - offset; IFQ_DRV_DEQUEUE(&(ifp->if_snd), m); if (m == NULL) { /* buffer not full */ retval = 1; break; } if (m->m_pkthdr.len > rem) { if (n == 0) { /* The frame won't fit in our buffer */ DPRINTFN(1, "Frame too big to be transmitted!\n"); m_freem(m); ifp->if_oerrors++; n--; continue; } /* Wait till next buffer becomes ready */ IFQ_DRV_PREPEND(&(ifp->if_snd), m); break; } usbd_m_copy_in(pc, offset, m, 0, m->m_pkthdr.len); USETW(sc->sc_ncm.dp[n].wFrameLength, m->m_pkthdr.len); USETW(sc->sc_ncm.dp[n].wFrameIndex, offset); /* Update offset */ offset += m->m_pkthdr.len; /* Store last valid offset before alignment */ last_offset = offset; /* Align offset */ offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, offset, sc->sc_ncm.tx_modulus); /* Zero pad */ cdce_ncm_tx_zero(pc, last_offset, offset); /* * If there's a BPF listener, bounce a copy * of this frame to him: */ BPF_MTAP(ifp, m); /* Free mbuf */ m_freem(m); /* Pre-increment interface counter */ ifp->if_opackets++; } if (n == 0) return (0); rem = (sizeof(sc->sc_ncm.dpt) + (4 * n) + 4); USETW(sc->sc_ncm.dpt.wLength, rem); /* zero the rest of the data pointer entries */ for (; n != CDCE_NCM_SUBFRAMES_MAX; n++) { USETW(sc->sc_ncm.dp[n].wFrameLength, 0); USETW(sc->sc_ncm.dp[n].wFrameIndex, 0); } offset = last_offset; /* Align offset */ offset = CDCE_NCM_ALIGN(0, offset, CDCE_NCM_TX_MINLEN); /* Optimise, save bandwidth and force short termination */ if (offset >= sc->sc_ncm.tx_max) offset = sc->sc_ncm.tx_max; else offset ++; /* Zero pad */ cdce_ncm_tx_zero(pc, last_offset, offset); /* set frame length */ usbd_xfer_set_frame_len(xfer, index, offset); /* Fill out 16-bit header */ sc->sc_ncm.hdr.dwSignature[0] = 'N'; sc->sc_ncm.hdr.dwSignature[1] = 'C'; sc->sc_ncm.hdr.dwSignature[2] = 'M'; sc->sc_ncm.hdr.dwSignature[3] = 'H'; USETW(sc->sc_ncm.hdr.wHeaderLength, sizeof(sc->sc_ncm.hdr)); USETW(sc->sc_ncm.hdr.wBlockLength, offset); USETW(sc->sc_ncm.hdr.wSequence, sc->sc_ncm.tx_seq); USETW(sc->sc_ncm.hdr.wDptIndex, sizeof(sc->sc_ncm.hdr)); sc->sc_ncm.tx_seq++; /* Fill out 16-bit frame table header */ sc->sc_ncm.dpt.dwSignature[0] = 'N'; sc->sc_ncm.dpt.dwSignature[1] = 'C'; sc->sc_ncm.dpt.dwSignature[2] = 'M'; sc->sc_ncm.dpt.dwSignature[3] = '0'; USETW(sc->sc_ncm.dpt.wNextNdpIndex, 0); /* reserved */ usbd_copy_in(pc, 0, &(sc->sc_ncm.hdr), sizeof(sc->sc_ncm.hdr)); usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr), &(sc->sc_ncm.dpt), sizeof(sc->sc_ncm.dpt)); usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt), &(sc->sc_ncm.dp), sizeof(sc->sc_ncm.dp)); return (retval); }
/*------------------------------------------------------------------------* * ucom_get_data * * Return values: * 0: No data is available. * Else: Data is available. *------------------------------------------------------------------------*/ uint8_t ucom_get_data(struct ucom_softc *sc, struct usb_page_cache *pc, uint32_t offset, uint32_t len, uint32_t *actlen) { struct usb_page_search res; struct tty *tp = sc->sc_tty; uint32_t cnt; uint32_t offset_orig; UCOM_MTX_ASSERT(sc, MA_OWNED); if (sc->sc_flag & UCOM_FLAG_CONSOLE) { unsigned int temp; /* get total TX length */ temp = ucom_cons_tx_high - ucom_cons_tx_low; temp %= UCOM_CONS_BUFSIZE; /* limit TX length */ if (temp > (UCOM_CONS_BUFSIZE - ucom_cons_tx_low)) temp = (UCOM_CONS_BUFSIZE - ucom_cons_tx_low); if (temp > len) temp = len; /* copy in data */ usbd_copy_in(pc, offset, ucom_cons_tx_buf + ucom_cons_tx_low, temp); /* update counters */ ucom_cons_tx_low += temp; ucom_cons_tx_low %= UCOM_CONS_BUFSIZE; /* store actual length */ *actlen = temp; return (temp ? 1 : 0); } if (tty_gone(tp) || !(sc->sc_flag & UCOM_FLAG_GP_DATA)) { actlen[0] = 0; return (0); /* multiport device polling */ } offset_orig = offset; while (len != 0) { usbd_get_page(pc, offset, &res); if (res.length > len) { res.length = len; } /* copy data directly into USB buffer */ cnt = ttydisc_getc(tp, res.buffer, res.length); offset += cnt; len -= cnt; if (cnt < res.length) { /* end of buffer */ break; } } actlen[0] = offset - offset_orig; DPRINTF("cnt=%d\n", actlen[0]); if (actlen[0] == 0) { return (0); } return (1); }
static void usbd_ctrl_callback(struct usb_xfer *xfer, usb_error_t error) { irp *ip; struct ndis_softc *sc = usbd_xfer_softc(xfer); struct ndisusb_ep *ne = usbd_xfer_get_priv(xfer); struct ndisusb_xfer *nx; uint8_t irql; union usbd_urb *urb; struct usbd_urb_vendor_or_class_request *vcreq; struct usb_page_cache *pc; uint8_t type = 0; struct usb_device_request req; int len; switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: nx = usbd_aq_getfirst(sc, ne); if (nx == NULL) return; ip = nx->nx_priv; urb = usbd_geturb(ip); vcreq = &urb->uu_vcreq; if (vcreq->uvc_trans_flags & USBD_TRANSFER_DIRECTION_IN) { pc = usbd_xfer_get_frame(xfer, 1); len = usbd_xfer_frame_len(xfer, 1); usbd_copy_out(pc, 0, vcreq->uvc_trans_buf, len); nx->nx_urbactlen += len; } usbd_xfer_complete(sc, ne, nx, USB_ERR_NORMAL_COMPLETION); /* fall through */ case USB_ST_SETUP: next: /* get next transfer */ KeAcquireSpinLock(&ne->ne_lock, &irql); if (IsListEmpty(&ne->ne_pending)) { KeReleaseSpinLock(&ne->ne_lock, irql); return; } nx = CONTAINING_RECORD(ne->ne_pending.nle_flink, struct ndisusb_xfer, nx_next); RemoveEntryList(&nx->nx_next); /* add a entry to the active queue's tail. */ InsertTailList((&ne->ne_active), (&nx->nx_next)); KeReleaseSpinLock(&ne->ne_lock, irql); ip = nx->nx_priv; urb = usbd_geturb(ip); vcreq = &urb->uu_vcreq; switch (urb->uu_hdr.uuh_func) { case URB_FUNCTION_CLASS_DEVICE: type = UT_CLASS | UT_DEVICE; break; case URB_FUNCTION_CLASS_INTERFACE: type = UT_CLASS | UT_INTERFACE; break; case URB_FUNCTION_CLASS_OTHER: type = UT_CLASS | UT_OTHER; break; case URB_FUNCTION_CLASS_ENDPOINT: type = UT_CLASS | UT_ENDPOINT; break; case URB_FUNCTION_VENDOR_DEVICE: type = UT_VENDOR | UT_DEVICE; break; case URB_FUNCTION_VENDOR_INTERFACE: type = UT_VENDOR | UT_INTERFACE; break; case URB_FUNCTION_VENDOR_OTHER: type = UT_VENDOR | UT_OTHER; break; case URB_FUNCTION_VENDOR_ENDPOINT: type = UT_VENDOR | UT_ENDPOINT; break; default: /* never reached. */ break; } type |= (vcreq->uvc_trans_flags & USBD_TRANSFER_DIRECTION_IN) ? UT_READ : UT_WRITE; type |= vcreq->uvc_reserved1; req.bmRequestType = type; req.bRequest = vcreq->uvc_req; USETW(req.wIndex, vcreq->uvc_idx); USETW(req.wValue, vcreq->uvc_value); USETW(req.wLength, vcreq->uvc_trans_buflen); nx->nx_urbbuf = vcreq->uvc_trans_buf; nx->nx_urblen = vcreq->uvc_trans_buflen; nx->nx_urbactlen = 0; pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frames(xfer, 1); if (vcreq->uvc_trans_flags & USBD_TRANSFER_DIRECTION_IN) { if (vcreq->uvc_trans_buflen >= USBD_CTRL_READ_BUFFER_SP) device_printf(sc->ndis_dev, "warning: not enough buffer space (%d).\n", vcreq->uvc_trans_buflen); usbd_xfer_set_frame_len(xfer, 1, MIN(usbd_xfer_max_len(xfer), vcreq->uvc_trans_buflen)); usbd_xfer_set_frames(xfer, 2); } else { if (nx->nx_urblen > USBD_CTRL_WRITE_BUFFER_SP) device_printf(sc->ndis_dev, "warning: not enough write buffer space" " (%d).\n", nx->nx_urblen); /* * XXX with my local tests there was no cases to require * a extra buffer until now but it'd need to update in * the future if it needs to be. */ if (nx->nx_urblen > 0) { pc = usbd_xfer_get_frame(xfer, 1); usbd_copy_in(pc, 0, nx->nx_urbbuf, nx->nx_urblen); usbd_xfer_set_frame_len(xfer, 1, nx->nx_urblen); usbd_xfer_set_frames(xfer, 2); } } usbd_transfer_submit(xfer); break; default: nx = usbd_aq_getfirst(sc, ne); if (nx == NULL) return; if (error != USB_ERR_CANCELLED) { usbd_xfer_set_stall(xfer); device_printf(sc->ndis_dev, "usb xfer warning (%s)\n", usbd_errstr(error)); } usbd_xfer_complete(sc, ne, nx, error); if (error != USB_ERR_CANCELLED) goto next; break; } }
static void usbd_non_isoc_callback(struct usb_xfer *xfer, usb_error_t error) { irp *ip; struct ndis_softc *sc = usbd_xfer_softc(xfer); struct ndisusb_ep *ne = usbd_xfer_get_priv(xfer); struct ndisusb_xfer *nx; struct usbd_urb_bulk_or_intr_transfer *ubi; struct usb_page_cache *pc; uint8_t irql; uint32_t len; union usbd_urb *urb; usb_endpoint_descriptor_t *ep; int actlen, sumlen; usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: nx = usbd_aq_getfirst(sc, ne); pc = usbd_xfer_get_frame(xfer, 0); if (nx == NULL) return; /* copy in data with regard to the URB */ if (ne->ne_dirin != 0) usbd_copy_out(pc, 0, nx->nx_urbbuf, actlen); nx->nx_urbbuf += actlen; nx->nx_urbactlen += actlen; nx->nx_urblen -= actlen; /* check for short transfer */ if (actlen < sumlen) nx->nx_urblen = 0; else { /* check remainder */ if (nx->nx_urblen > 0) { KeAcquireSpinLock(&ne->ne_lock, &irql); InsertHeadList((&ne->ne_active), (&nx->nx_next)); KeReleaseSpinLock(&ne->ne_lock, irql); ip = nx->nx_priv; urb = usbd_geturb(ip); ubi = &urb->uu_bulkintr; ep = ubi->ubi_epdesc; goto extra; } } usbd_xfer_complete(sc, ne, nx, ((actlen < sumlen) && (nx->nx_shortxfer == 0)) ? USB_ERR_SHORT_XFER : USB_ERR_NORMAL_COMPLETION); /* fall through */ case USB_ST_SETUP: next: /* get next transfer */ KeAcquireSpinLock(&ne->ne_lock, &irql); if (IsListEmpty(&ne->ne_pending)) { KeReleaseSpinLock(&ne->ne_lock, irql); return; } nx = CONTAINING_RECORD(ne->ne_pending.nle_flink, struct ndisusb_xfer, nx_next); RemoveEntryList(&nx->nx_next); /* add a entry to the active queue's tail. */ InsertTailList((&ne->ne_active), (&nx->nx_next)); KeReleaseSpinLock(&ne->ne_lock, irql); ip = nx->nx_priv; urb = usbd_geturb(ip); ubi = &urb->uu_bulkintr; ep = ubi->ubi_epdesc; nx->nx_urbbuf = ubi->ubi_trans_buf; nx->nx_urbactlen = 0; nx->nx_urblen = ubi->ubi_trans_buflen; nx->nx_shortxfer = (ubi->ubi_trans_flags & USBD_SHORT_TRANSFER_OK) ? 1 : 0; extra: len = MIN(usbd_xfer_max_len(xfer), nx->nx_urblen); pc = usbd_xfer_get_frame(xfer, 0); if (UE_GET_DIR(ep->bEndpointAddress) == UE_DIR_OUT) usbd_copy_in(pc, 0, nx->nx_urbbuf, len); usbd_xfer_set_frame_len(xfer, 0, len); usbd_xfer_set_frames(xfer, 1); usbd_transfer_submit(xfer); break; default: nx = usbd_aq_getfirst(sc, ne); if (nx == NULL) return; if (error != USB_ERR_CANCELLED) { usbd_xfer_set_stall(xfer); device_printf(sc->ndis_dev, "usb xfer warning (%s)\n", usbd_errstr(error)); } usbd_xfer_complete(sc, ne, nx, error); if (error != USB_ERR_CANCELLED) goto next; break; } }
static void ubt_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) { struct ubt_softc *sc = usbd_xfer_softc(xfer); struct usb_device_request req; struct mbuf *m; struct usb_page_cache *pc; int actlen; usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: UBT_INFO(sc, "sent %d bytes to control pipe\n", actlen); UBT_STAT_BYTES_SENT(sc, actlen); UBT_STAT_PCKTS_SENT(sc); /* FALLTHROUGH */ case USB_ST_SETUP: send_next: /* Get next command mbuf, if any */ UBT_NG_LOCK(sc); NG_BT_MBUFQ_DEQUEUE(&sc->sc_cmdq, m); UBT_NG_UNLOCK(sc); if (m == NULL) { UBT_INFO(sc, "HCI command queue is empty\n"); break; /* transfer complete */ } /* Initialize a USB control request and then schedule it */ bzero(&req, sizeof(req)); req.bmRequestType = UBT_HCI_REQUEST; USETW(req.wLength, m->m_pkthdr.len); UBT_INFO(sc, "Sending control request, " \ "bmRequestType=0x%02x, wLength=%d\n", req.bmRequestType, UGETW(req.wLength)); pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); pc = usbd_xfer_get_frame(xfer, 1); usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frame_len(xfer, 1, m->m_pkthdr.len); usbd_xfer_set_frames(xfer, 2); NG_FREE_M(m); usbd_transfer_submit(xfer); break; default: /* Error */ if (error != USB_ERR_CANCELLED) { UBT_WARN(sc, "control transfer failed: %s\n", usbd_errstr(error)); UBT_STAT_OERROR(sc); goto send_next; } /* transfer cancelled */ break; } } /* ubt_ctrl_write_callback */
/*------------------------------------------------------------------------* * usbd_do_request_flags and usbd_do_request * * Description of arguments passed to these functions: * * "udev" - this is the "usb_device" structure pointer on which the * request should be performed. It is possible to call this function * in both Host Side mode and Device Side mode. * * "mtx" - if this argument is non-NULL the mutex pointed to by it * will get dropped and picked up during the execution of this * function, hence this function sometimes needs to sleep. If this * argument is NULL it has no effect. * * "req" - this argument must always be non-NULL and points to an * 8-byte structure holding the USB request to be done. The USB * request structure has a bit telling the direction of the USB * request, if it is a read or a write. * * "data" - if the "wLength" part of the structure pointed to by "req" * is non-zero this argument must point to a valid kernel buffer which * can hold at least "wLength" bytes. If "wLength" is zero "data" can * be NULL. * * "flags" - here is a list of valid flags: * * o USB_SHORT_XFER_OK: allows the data transfer to be shorter than * specified * * o USB_DELAY_STATUS_STAGE: allows the status stage to be performed * at a later point in time. This is tunable by the "hw.usb.ss_delay" * sysctl. This flag is mostly useful for debugging. * * o USB_USER_DATA_PTR: treat the "data" pointer like a userland * pointer. * * "actlen" - if non-NULL the actual transfer length will be stored in * the 16-bit unsigned integer pointed to by "actlen". This * information is mostly useful when the "USB_SHORT_XFER_OK" flag is * used. * * "timeout" - gives the timeout for the control transfer in * milliseconds. A "timeout" value less than 50 milliseconds is * treated like a 50 millisecond timeout. A "timeout" value greater * than 30 seconds is treated like a 30 second timeout. This USB stack * does not allow control requests without a timeout. * * NOTE: This function is thread safe. All calls to * "usbd_do_request_flags" will be serialised by the use of an * internal "sx_lock". * * Returns: * 0: Success * Else: Failure *------------------------------------------------------------------------*/ usb_error_t usbd_do_request_flags(struct usb_device *udev, struct mtx *mtx, struct usb_device_request *req, void *data, uint16_t flags, uint16_t *actlen, usb_timeout_t timeout) { usb_handle_req_t *hr_func; struct usb_xfer *xfer; const void *desc; int err = 0; usb_ticks_t start_ticks; usb_ticks_t delta_ticks; usb_ticks_t max_ticks; uint16_t length; uint16_t temp; if (timeout < 50) { /* timeout is too small */ timeout = 50; } if (timeout > 30000) { /* timeout is too big */ timeout = 30000; } length = UGETW(req->wLength); DPRINTFN(5, "udev=%p bmRequestType=0x%02x bRequest=0x%02x " "wValue=0x%02x%02x wIndex=0x%02x%02x wLength=0x%02x%02x\n", udev, req->bmRequestType, req->bRequest, req->wValue[1], req->wValue[0], req->wIndex[1], req->wIndex[0], req->wLength[1], req->wLength[0]); /* Check if the device is still alive */ if (udev->state < USB_STATE_POWERED) { DPRINTF("usb device has gone\n"); return (USB_ERR_NOT_CONFIGURED); } /* * Set "actlen" to a known value in case the caller does not * check the return value: */ if (actlen) *actlen = 0; #if (USB_HAVE_USER_IO == 0) if (flags & USB_USER_DATA_PTR) return (USB_ERR_INVAL); #endif if (mtx) { mtx_unlock(mtx); if (mtx != &Giant) { mtx_assert(mtx, MA_NOTOWNED); } } /* * Grab the default sx-lock so that serialisation * is achieved when multiple threads are involved: */ sx_xlock(udev->default_sx); hr_func = usbd_get_hr_func(udev); if (hr_func != NULL) { DPRINTF("Handle Request function is set\n"); desc = NULL; temp = 0; if (!(req->bmRequestType & UT_READ)) { if (length != 0) { DPRINTFN(1, "The handle request function " "does not support writing data!\n"); err = USB_ERR_INVAL; goto done; } } /* The root HUB code needs the BUS lock locked */ USB_BUS_LOCK(udev->bus); err = (hr_func) (udev, req, &desc, &temp); USB_BUS_UNLOCK(udev->bus); if (err) goto done; if (length > temp) { if (!(flags & USB_SHORT_XFER_OK)) { err = USB_ERR_SHORT_XFER; goto done; } length = temp; } if (actlen) *actlen = length; if (length > 0) { #if USB_HAVE_USER_IO if (flags & USB_USER_DATA_PTR) { if (copyout(desc, data, length)) { err = USB_ERR_INVAL; goto done; } } else #endif bcopy(desc, data, length); } goto done; /* success */ } /* * Setup a new USB transfer or use the existing one, if any: */ usbd_default_transfer_setup(udev); xfer = udev->default_xfer[0]; if (xfer == NULL) { /* most likely out of memory */ err = USB_ERR_NOMEM; goto done; } USB_XFER_LOCK(xfer); if (flags & USB_DELAY_STATUS_STAGE) xfer->flags.manual_status = 1; else xfer->flags.manual_status = 0; if (flags & USB_SHORT_XFER_OK) xfer->flags.short_xfer_ok = 1; else xfer->flags.short_xfer_ok = 0; xfer->timeout = timeout; start_ticks = ticks; max_ticks = USB_MS_TO_TICKS(timeout); usbd_copy_in(xfer->frbuffers, 0, req, sizeof(*req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(*req)); xfer->nframes = 2; while (1) { temp = length; if (temp > xfer->max_data_length) { temp = usbd_xfer_max_len(xfer); } usbd_xfer_set_frame_len(xfer, 1, temp); if (temp > 0) { if (!(req->bmRequestType & UT_READ)) { #if USB_HAVE_USER_IO if (flags & USB_USER_DATA_PTR) { USB_XFER_UNLOCK(xfer); err = usbd_copy_in_user(xfer->frbuffers + 1, 0, data, temp); USB_XFER_LOCK(xfer); if (err) { err = USB_ERR_INVAL; break; } } else #endif usbd_copy_in(xfer->frbuffers + 1, 0, data, temp); } xfer->nframes = 2; } else { if (xfer->frlengths[0] == 0) { if (xfer->flags.manual_status) { #if USB_DEBUG int temp; temp = usb_ss_delay; if (temp > 5000) { temp = 5000; } if (temp > 0) { usb_pause_mtx( xfer->xroot->xfer_mtx, USB_MS_TO_TICKS(temp)); } #endif xfer->flags.manual_status = 0; } else { break; } } xfer->nframes = 1; } usbd_transfer_start(xfer); while (usbd_transfer_pending(xfer)) { cv_wait(udev->default_cv, xfer->xroot->xfer_mtx); } err = xfer->error; if (err) { break; } /* subtract length of SETUP packet, if any */ if (xfer->aframes > 0) { xfer->actlen -= xfer->frlengths[0]; } else { xfer->actlen = 0; } /* check for short packet */ if (temp > xfer->actlen) { temp = xfer->actlen; length = temp; } if (temp > 0) { if (req->bmRequestType & UT_READ) { #if USB_HAVE_USER_IO if (flags & USB_USER_DATA_PTR) { USB_XFER_UNLOCK(xfer); err = usbd_copy_out_user(xfer->frbuffers + 1, 0, data, temp); USB_XFER_LOCK(xfer); if (err) { err = USB_ERR_INVAL; break; } } else #endif usbd_copy_out(xfer->frbuffers + 1, 0, data, temp); } } /* * Clear "frlengths[0]" so that we don't send the setup * packet again: */ usbd_xfer_set_frame_len(xfer, 0, 0); /* update length and data pointer */ length -= temp; data = USB_ADD_BYTES(data, temp); if (actlen) { (*actlen) += temp; } /* check for timeout */ delta_ticks = ticks - start_ticks; if (delta_ticks > max_ticks) { if (!err) { err = USB_ERR_TIMEOUT; } } if (err) { break; } } if (err) { /* * Make sure that the control endpoint is no longer * blocked in case of a non-transfer related error: */ usbd_transfer_stop(xfer); } USB_XFER_UNLOCK(xfer); done: sx_xunlock(udev->default_sx); if (mtx) { mtx_lock(mtx); } return ((usb_error_t)err); }
/*------------------------------------------------------------------------* * usb_do_clear_stall_callback * * This function is the USB callback for generic clear stall requests. *------------------------------------------------------------------------*/ void usb_do_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) { struct usb_device_request req; struct usb_device *udev; struct usb_endpoint *ep; struct usb_endpoint *ep_end; struct usb_endpoint *ep_first; uint8_t to; udev = xfer->xroot->udev; USB_BUS_LOCK(udev->bus); /* round robin endpoint clear stall */ ep = udev->ep_curr; ep_end = udev->endpoints + udev->endpoints_max; ep_first = udev->endpoints; to = udev->endpoints_max; switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: if (ep == NULL) goto tr_setup; /* device was unconfigured */ if (ep->edesc && ep->is_stalled) { ep->toggle_next = 0; ep->is_stalled = 0; /* start up the current or next transfer, if any */ usb_command_wrapper(&ep->endpoint_q, ep->endpoint_q.curr); } ep++; case USB_ST_SETUP: tr_setup: if (to == 0) break; /* no endpoints - nothing to do */ if ((ep < ep_first) || (ep >= ep_end)) ep = ep_first; /* endpoint wrapped around */ if (ep->edesc && ep->is_stalled) { /* setup a clear-stall packet */ req.bmRequestType = UT_WRITE_ENDPOINT; req.bRequest = UR_CLEAR_FEATURE; USETW(req.wValue, UF_ENDPOINT_HALT); req.wIndex[0] = ep->edesc->bEndpointAddress; req.wIndex[1] = 0; USETW(req.wLength, 0); /* copy in the transfer */ usbd_copy_in(xfer->frbuffers, 0, &req, sizeof(req)); /* set length */ usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); xfer->nframes = 1; USB_BUS_UNLOCK(udev->bus); usbd_transfer_submit(xfer); USB_BUS_LOCK(udev->bus); break; } ep++; to--; goto tr_setup; default: if (xfer->error == USB_ERR_CANCELLED) { break; } goto tr_setup; } /* store current endpoint */ udev->ep_curr = ep; USB_BUS_UNLOCK(udev->bus); }
static void cdce_intr_write_callback(struct usb_xfer *xfer, usb_error_t error) { struct cdce_softc *sc = usbd_xfer_softc(xfer); struct usb_cdc_notification req; struct usb_page_cache *pc; uint32_t speed; int actlen; usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: DPRINTF("Transferred %d bytes\n", actlen); switch (sc->sc_notify_state) { case CDCE_NOTIFY_NETWORK_CONNECTION: sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; break; case CDCE_NOTIFY_SPEED_CHANGE: sc->sc_notify_state = CDCE_NOTIFY_DONE; break; default: break; } /* FALLTHROUGH */ case USB_ST_SETUP: tr_setup: /* * Inform host about connection. Required according to USB CDC * specification and communicating to Mac OS X USB host stack. * Some of the values seems ignored by Mac OS X though. */ if (sc->sc_notify_state == CDCE_NOTIFY_NETWORK_CONNECTION) { req.bmRequestType = UCDC_NOTIFICATION; req.bNotification = UCDC_N_NETWORK_CONNECTION; req.wIndex[0] = sc->sc_ifaces_index[1]; req.wIndex[1] = 0; USETW(req.wValue, 1); /* Connected */ USETW(req.wLength, 0); pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frames(xfer, 1); usbd_transfer_submit(xfer); } else if (sc->sc_notify_state == CDCE_NOTIFY_SPEED_CHANGE) { req.bmRequestType = UCDC_NOTIFICATION; req.bNotification = UCDC_N_CONNECTION_SPEED_CHANGE; req.wIndex[0] = sc->sc_ifaces_index[1]; req.wIndex[1] = 0; USETW(req.wValue, 0); USETW(req.wLength, 8); /* Peak theoretical bulk trasfer rate in bits/s */ if (usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_FULL) speed = (13 * 512 * 8 * 1000 * 8); else speed = (19 * 64 * 1 * 1000 * 8); USETDW(req.data + 0, speed); /* Upstream bit rate */ USETDW(req.data + 4, speed); /* Downstream bit rate */ pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_in(pc, 0, &req, sizeof(req)); usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); usbd_xfer_set_frames(xfer, 1); usbd_transfer_submit(xfer); } break; default: /* Error */ if (error != USB_ERR_CANCELLED) { if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { /* start clear stall */ usbd_xfer_set_stall(xfer); } goto tr_setup; } break; } }