3e4af77774
PR: usb/144201
650 lines
17 KiB
C
650 lines
17 KiB
C
/* $NetBSD: uvisor.c,v 1.9 2001/01/23 14:04:14 augustss Exp $ */
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/* $FreeBSD$ */
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/* Also already merged from NetBSD:
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* $NetBSD: uvisor.c,v 1.12 2001/11/13 06:24:57 lukem Exp $
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* $NetBSD: uvisor.c,v 1.13 2002/02/11 15:11:49 augustss Exp $
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* $NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $
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* $NetBSD: uvisor.c,v 1.15 2002/06/16 15:01:31 augustss Exp $
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* $NetBSD: uvisor.c,v 1.16 2002/07/11 21:14:36 augustss Exp $
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* $NetBSD: uvisor.c,v 1.17 2002/08/13 11:38:15 augustss Exp $
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* $NetBSD: uvisor.c,v 1.18 2003/02/05 00:50:14 augustss Exp $
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* $NetBSD: uvisor.c,v 1.19 2003/02/07 18:12:37 augustss Exp $
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* $NetBSD: uvisor.c,v 1.20 2003/04/11 01:30:10 simonb Exp $
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*/
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Handspring Visor (Palmpilot compatible PDA) driver
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*/
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#include <sys/stdint.h>
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#include <sys/stddef.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/linker_set.h>
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#include <sys/module.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <sys/sysctl.h>
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#include <sys/sx.h>
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#include <sys/unistd.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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#include <sys/priv.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include "usbdevs.h"
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#define USB_DEBUG_VAR uvisor_debug
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#include <dev/usb/usb_debug.h>
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#include <dev/usb/usb_process.h>
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#include <dev/usb/serial/usb_serial.h>
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#if USB_DEBUG
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static int uvisor_debug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, uvisor, CTLFLAG_RW, 0, "USB uvisor");
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SYSCTL_INT(_hw_usb_uvisor, OID_AUTO, debug, CTLFLAG_RW,
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&uvisor_debug, 0, "Debug level");
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#endif
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#define UVISOR_CONFIG_INDEX 0
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#define UVISOR_IFACE_INDEX 0
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/*
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* The following buffer sizes are hardcoded due to the way the Palm
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* firmware works. It looks like the device is not short terminating
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* the data transferred.
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*/
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#define UVISORIBUFSIZE 0 /* Use wMaxPacketSize */
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#define UVISOROBUFSIZE 32 /* bytes */
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#define UVISOROFRAMES 32 /* units */
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/* From the Linux driver */
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/*
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* UVISOR_REQUEST_BYTES_AVAILABLE asks the visor for the number of bytes that
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* are available to be transfered to the host for the specified endpoint.
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* Currently this is not used, and always returns 0x0001
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*/
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#define UVISOR_REQUEST_BYTES_AVAILABLE 0x01
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/*
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* UVISOR_CLOSE_NOTIFICATION is set to the device to notify it that the host
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* is now closing the pipe. An empty packet is sent in response.
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*/
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#define UVISOR_CLOSE_NOTIFICATION 0x02
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/*
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* UVISOR_GET_CONNECTION_INFORMATION is sent by the host during enumeration to
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* get the endpoints used by the connection.
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*/
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#define UVISOR_GET_CONNECTION_INFORMATION 0x03
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/*
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* UVISOR_GET_CONNECTION_INFORMATION returns data in the following format
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*/
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#define UVISOR_MAX_CONN 8
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struct uvisor_connection_info {
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uWord num_ports;
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struct {
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uByte port_function_id;
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uByte port;
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} __packed connections[UVISOR_MAX_CONN];
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} __packed;
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#define UVISOR_CONNECTION_INFO_SIZE 18
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/* struct uvisor_connection_info.connection[x].port defines: */
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#define UVISOR_ENDPOINT_1 0x01
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#define UVISOR_ENDPOINT_2 0x02
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/* struct uvisor_connection_info.connection[x].port_function_id defines: */
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#define UVISOR_FUNCTION_GENERIC 0x00
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#define UVISOR_FUNCTION_DEBUGGER 0x01
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#define UVISOR_FUNCTION_HOTSYNC 0x02
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#define UVISOR_FUNCTION_CONSOLE 0x03
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#define UVISOR_FUNCTION_REMOTE_FILE_SYS 0x04
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/*
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* Unknown PalmOS stuff.
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*/
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#define UVISOR_GET_PALM_INFORMATION 0x04
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#define UVISOR_GET_PALM_INFORMATION_LEN 0x44
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struct uvisor_palm_connection_info {
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uByte num_ports;
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uByte endpoint_numbers_different;
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uWord reserved1;
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struct {
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uDWord port_function_id;
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uByte port;
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uByte end_point_info;
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uWord reserved;
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} __packed connections[UVISOR_MAX_CONN];
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} __packed;
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enum {
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UVISOR_BULK_DT_WR,
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UVISOR_BULK_DT_RD,
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UVISOR_N_TRANSFER,
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};
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struct uvisor_softc {
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struct ucom_super_softc sc_super_ucom;
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struct ucom_softc sc_ucom;
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struct usb_xfer *sc_xfer[UVISOR_N_TRANSFER];
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struct usb_device *sc_udev;
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struct mtx sc_mtx;
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uint16_t sc_flag;
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#define UVISOR_FLAG_PALM4 0x0001
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#define UVISOR_FLAG_VISOR 0x0002
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#define UVISOR_FLAG_PALM35 0x0004
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#define UVISOR_FLAG_SEND_NOTIFY 0x0008
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uint8_t sc_iface_no;
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uint8_t sc_iface_index;
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};
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/* prototypes */
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static device_probe_t uvisor_probe;
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static device_attach_t uvisor_attach;
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static device_detach_t uvisor_detach;
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static usb_callback_t uvisor_write_callback;
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static usb_callback_t uvisor_read_callback;
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static usb_error_t uvisor_init(struct uvisor_softc *, struct usb_device *,
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struct usb_config *);
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static void uvisor_cfg_open(struct ucom_softc *);
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static void uvisor_cfg_close(struct ucom_softc *);
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static void uvisor_start_read(struct ucom_softc *);
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static void uvisor_stop_read(struct ucom_softc *);
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static void uvisor_start_write(struct ucom_softc *);
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static void uvisor_stop_write(struct ucom_softc *);
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static const struct usb_config uvisor_config[UVISOR_N_TRANSFER] = {
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[UVISOR_BULK_DT_WR] = {
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.type = UE_BULK,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_OUT,
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.bufsize = UVISOROBUFSIZE * UVISOROFRAMES,
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.frames = UVISOROFRAMES,
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.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
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.callback = &uvisor_write_callback,
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},
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[UVISOR_BULK_DT_RD] = {
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.type = UE_BULK,
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.endpoint = UE_ADDR_ANY,
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.direction = UE_DIR_IN,
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.bufsize = UVISORIBUFSIZE,
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.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
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.callback = &uvisor_read_callback,
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},
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};
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static const struct ucom_callback uvisor_callback = {
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.ucom_cfg_open = &uvisor_cfg_open,
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.ucom_cfg_close = &uvisor_cfg_close,
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.ucom_start_read = &uvisor_start_read,
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.ucom_stop_read = &uvisor_stop_read,
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.ucom_start_write = &uvisor_start_write,
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.ucom_stop_write = &uvisor_stop_write,
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};
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static device_method_t uvisor_methods[] = {
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DEVMETHOD(device_probe, uvisor_probe),
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DEVMETHOD(device_attach, uvisor_attach),
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DEVMETHOD(device_detach, uvisor_detach),
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{0, 0}
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};
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static devclass_t uvisor_devclass;
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static driver_t uvisor_driver = {
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.name = "uvisor",
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.methods = uvisor_methods,
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.size = sizeof(struct uvisor_softc),
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};
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DRIVER_MODULE(uvisor, uhub, uvisor_driver, uvisor_devclass, NULL, 0);
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MODULE_DEPEND(uvisor, ucom, 1, 1, 1);
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MODULE_DEPEND(uvisor, usb, 1, 1, 1);
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static const struct usb_device_id uvisor_devs[] = {
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#define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
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UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4),
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UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4),
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UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4),
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UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4),
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UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR),
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UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4),
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UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4),
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UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4),
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UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4),
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UVISOR_DEV(SONY, CLIE_40, 0),
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UVISOR_DEV(SONY, CLIE_41, 0),
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UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4),
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UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4),
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UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35),
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/* UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */
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UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4),
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/* UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */
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UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4),
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#undef UVISOR_DEV
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};
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static int
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uvisor_probe(device_t dev)
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{
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struct usb_attach_arg *uaa = device_get_ivars(dev);
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if (uaa->usb_mode != USB_MODE_HOST) {
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return (ENXIO);
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}
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if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) {
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return (ENXIO);
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}
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if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) {
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return (ENXIO);
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}
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return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa));
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}
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static int
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uvisor_attach(device_t dev)
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{
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struct usb_attach_arg *uaa = device_get_ivars(dev);
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struct uvisor_softc *sc = device_get_softc(dev);
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struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER];
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int error;
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DPRINTF("sc=%p\n", sc);
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bcopy(uvisor_config, uvisor_config_copy,
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sizeof(uvisor_config_copy));
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device_set_usb_desc(dev);
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mtx_init(&sc->sc_mtx, "uvisor", NULL, MTX_DEF);
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sc->sc_udev = uaa->device;
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/* configure the device */
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sc->sc_flag = USB_GET_DRIVER_INFO(uaa);
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sc->sc_iface_no = uaa->info.bIfaceNum;
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sc->sc_iface_index = UVISOR_IFACE_INDEX;
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error = uvisor_init(sc, uaa->device, uvisor_config_copy);
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if (error) {
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DPRINTF("init failed, error=%s\n",
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usbd_errstr(error));
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goto detach;
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}
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error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
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sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER,
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sc, &sc->sc_mtx);
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if (error) {
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DPRINTF("could not allocate all pipes\n");
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goto detach;
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}
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error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
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&uvisor_callback, &sc->sc_mtx);
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if (error) {
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DPRINTF("ucom_attach failed\n");
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goto detach;
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}
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return (0);
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detach:
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uvisor_detach(dev);
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return (ENXIO);
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}
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static int
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uvisor_detach(device_t dev)
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{
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struct uvisor_softc *sc = device_get_softc(dev);
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DPRINTF("sc=%p\n", sc);
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ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom, 1);
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usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER);
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mtx_destroy(&sc->sc_mtx);
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return (0);
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}
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static usb_error_t
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uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config)
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{
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usb_error_t err = 0;
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struct usb_device_request req;
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struct uvisor_connection_info coninfo;
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struct uvisor_palm_connection_info pconinfo;
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uint16_t actlen;
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uint8_t buffer[256];
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if (sc->sc_flag & UVISOR_FLAG_VISOR) {
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DPRINTF("getting connection info\n");
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req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
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req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
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USETW(req.wValue, 0);
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USETW(req.wIndex, 0);
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USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
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err = usbd_do_request_flags(udev, NULL,
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&req, &coninfo, USB_SHORT_XFER_OK,
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&actlen, USB_DEFAULT_TIMEOUT);
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if (err) {
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goto done;
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}
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}
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#if USB_DEBUG
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if (sc->sc_flag & UVISOR_FLAG_VISOR) {
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uint16_t i, np;
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const char *desc;
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np = UGETW(coninfo.num_ports);
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if (np > UVISOR_MAX_CONN) {
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np = UVISOR_MAX_CONN;
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}
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DPRINTF("Number of ports: %d\n", np);
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for (i = 0; i < np; ++i) {
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switch (coninfo.connections[i].port_function_id) {
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case UVISOR_FUNCTION_GENERIC:
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desc = "Generic";
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break;
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case UVISOR_FUNCTION_DEBUGGER:
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desc = "Debugger";
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break;
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case UVISOR_FUNCTION_HOTSYNC:
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desc = "HotSync";
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break;
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case UVISOR_FUNCTION_REMOTE_FILE_SYS:
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desc = "Remote File System";
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break;
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default:
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desc = "unknown";
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break;
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}
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DPRINTF("Port %d is for %s\n",
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coninfo.connections[i].port, desc);
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}
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}
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#endif
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if (sc->sc_flag & UVISOR_FLAG_PALM4) {
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uint8_t port;
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/* Palm OS 4.0 Hack */
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req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
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req.bRequest = UVISOR_GET_PALM_INFORMATION;
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USETW(req.wValue, 0);
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USETW(req.wIndex, 0);
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USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
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err = usbd_do_request_flags
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(udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK,
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&actlen, USB_DEFAULT_TIMEOUT);
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if (err) {
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goto done;
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}
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if (actlen < 12) {
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DPRINTF("too little data\n");
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err = USB_ERR_INVAL;
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goto done;
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}
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if (pconinfo.endpoint_numbers_different) {
|
|
port = pconinfo.connections[0].end_point_info;
|
|
config[0].endpoint = (port & 0xF); /* output */
|
|
config[1].endpoint = (port >> 4); /* input */
|
|
} else {
|
|
port = pconinfo.connections[0].port;
|
|
config[0].endpoint = (port & 0xF); /* output */
|
|
config[1].endpoint = (port & 0xF); /* input */
|
|
}
|
|
#if 0
|
|
req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
|
|
req.bRequest = UVISOR_GET_PALM_INFORMATION;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, 0);
|
|
USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
|
|
err = usbd_do_request(udev, &req, buffer);
|
|
if (err) {
|
|
goto done;
|
|
}
|
|
#endif
|
|
}
|
|
if (sc->sc_flag & UVISOR_FLAG_PALM35) {
|
|
/* get the config number */
|
|
DPRINTF("getting config info\n");
|
|
req.bmRequestType = UT_READ;
|
|
req.bRequest = UR_GET_CONFIG;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, 0);
|
|
USETW(req.wLength, 1);
|
|
|
|
err = usbd_do_request(udev, NULL, &req, buffer);
|
|
if (err) {
|
|
goto done;
|
|
}
|
|
/* get the interface number */
|
|
DPRINTF("get the interface number\n");
|
|
req.bmRequestType = UT_READ_DEVICE;
|
|
req.bRequest = UR_GET_INTERFACE;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, 0);
|
|
USETW(req.wLength, 1);
|
|
err = usbd_do_request(udev, NULL, &req, buffer);
|
|
if (err) {
|
|
goto done;
|
|
}
|
|
}
|
|
#if 0
|
|
uWord wAvail;
|
|
|
|
DPRINTF("getting available bytes\n");
|
|
req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
|
|
req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, 5);
|
|
USETW(req.wLength, sizeof(wAvail));
|
|
err = usbd_do_request(udev, NULL, &req, &wAvail);
|
|
if (err) {
|
|
goto done;
|
|
}
|
|
DPRINTF("avail=%d\n", UGETW(wAvail));
|
|
#endif
|
|
|
|
DPRINTF("done\n");
|
|
done:
|
|
return (err);
|
|
}
|
|
|
|
static void
|
|
uvisor_cfg_open(struct ucom_softc *ucom)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static void
|
|
uvisor_cfg_close(struct ucom_softc *ucom)
|
|
{
|
|
struct uvisor_softc *sc = ucom->sc_parent;
|
|
uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE];
|
|
struct usb_device_request req;
|
|
usb_error_t err;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */
|
|
req.bRequest = UVISOR_CLOSE_NOTIFICATION;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, 0);
|
|
USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
|
|
|
|
err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom,
|
|
&req, buffer, 0, 1000);
|
|
if (err) {
|
|
DPRINTFN(0, "close notification failed, error=%s\n",
|
|
usbd_errstr(err));
|
|
}
|
|
}
|
|
|
|
static void
|
|
uvisor_start_read(struct ucom_softc *ucom)
|
|
{
|
|
struct uvisor_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]);
|
|
}
|
|
|
|
static void
|
|
uvisor_stop_read(struct ucom_softc *ucom)
|
|
{
|
|
struct uvisor_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]);
|
|
}
|
|
|
|
static void
|
|
uvisor_start_write(struct ucom_softc *ucom)
|
|
{
|
|
struct uvisor_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]);
|
|
}
|
|
|
|
static void
|
|
uvisor_stop_write(struct ucom_softc *ucom)
|
|
{
|
|
struct uvisor_softc *sc = ucom->sc_parent;
|
|
|
|
usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]);
|
|
}
|
|
|
|
static void
|
|
uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct uvisor_softc *sc = usbd_xfer_softc(xfer);
|
|
struct usb_page_cache *pc;
|
|
uint32_t actlen;
|
|
uint8_t x;
|
|
|
|
switch (USB_GET_STATE(xfer)) {
|
|
case USB_ST_SETUP:
|
|
case USB_ST_TRANSFERRED:
|
|
tr_setup:
|
|
for (x = 0; x != UVISOROFRAMES; x++) {
|
|
|
|
usbd_xfer_set_frame_offset(xfer,
|
|
x * UVISOROBUFSIZE, x);
|
|
|
|
pc = usbd_xfer_get_frame(xfer, x);
|
|
if (ucom_get_data(&sc->sc_ucom, pc, 0,
|
|
UVISOROBUFSIZE, &actlen)) {
|
|
usbd_xfer_set_frame_len(xfer, x, actlen);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
/* check for data */
|
|
if (x != 0) {
|
|
usbd_xfer_set_frames(xfer, x);
|
|
usbd_transfer_submit(xfer);
|
|
}
|
|
break;
|
|
|
|
default: /* Error */
|
|
if (error != USB_ERR_CANCELLED) {
|
|
/* try to clear stall first */
|
|
usbd_xfer_set_stall(xfer);
|
|
goto tr_setup;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error)
|
|
{
|
|
struct uvisor_softc *sc = usbd_xfer_softc(xfer);
|
|
struct usb_page_cache *pc;
|
|
int actlen;
|
|
|
|
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
|
|
|
|
switch (USB_GET_STATE(xfer)) {
|
|
case USB_ST_TRANSFERRED:
|
|
pc = usbd_xfer_get_frame(xfer, 0);
|
|
ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
|
|
|
|
case USB_ST_SETUP:
|
|
tr_setup:
|
|
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
|
|
usbd_transfer_submit(xfer);
|
|
return;
|
|
|
|
default: /* Error */
|
|
if (error != USB_ERR_CANCELLED) {
|
|
/* try to clear stall first */
|
|
usbd_xfer_set_stall(xfer);
|
|
goto tr_setup;
|
|
}
|
|
return;
|
|
}
|
|
}
|