fb709bf5c6
standard rates. Obtained from OpenBSD src/sys/dev/usb/uftdi.c 1.29 src/sys/dev/usb/uftdireg.h 1.11 OpenBSD revisions noted by: ticso, on hackers
771 lines
20 KiB
C
771 lines
20 KiB
C
/* $NetBSD: uftdi.c,v 1.13 2002/09/23 05:51:23 simonb Exp $ */
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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).
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* FTDI FT8U100AX serial adapter driver
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/ioccom.h>
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#include <sys/fcntl.h>
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#include <sys/conf.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/selinfo.h>
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#include <sys/sysctl.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbhid.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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#include <dev/usb/ucomvar.h>
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#include <dev/usb/uftdireg.h>
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#ifdef USB_DEBUG
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static int uftdidebug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, uftdi, CTLFLAG_RW, 0, "USB uftdi");
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SYSCTL_INT(_hw_usb_uftdi, OID_AUTO, debug, CTLFLAG_RW,
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&uftdidebug, 0, "uftdi debug level");
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#define DPRINTF(x) do { \
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if (uftdidebug) \
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printf x; \
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} while (0)
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#define DPRINTFN(n, x) do { \
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if (uftdidebug > (n)) \
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printf x; \
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} while (0)
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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#define UFTDI_CONFIG_INDEX 0
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#define UFTDI_IFACE_INDEX 0
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/*
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* These are the maximum number of bytes transferred per frame.
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* The output buffer size cannot be increased due to the size encoding.
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*/
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#define UFTDIIBUFSIZE 64
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#define UFTDIOBUFSIZE 64
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struct uftdi_softc {
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struct ucom_softc sc_ucom;
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usbd_interface_handle sc_iface; /* interface */
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enum uftdi_type sc_type;
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u_int sc_hdrlen;
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u_char sc_msr;
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u_char sc_lsr;
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u_int last_lcr;
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};
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static void uftdi_get_status(void *, int portno, u_char *lsr, u_char *msr);
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static void uftdi_set(void *, int, int, int);
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static int uftdi_param(void *, int, struct termios *);
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static int uftdi_open(void *sc, int portno);
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static void uftdi_read(void *sc, int portno, u_char **ptr,u_int32_t *count);
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static void uftdi_write(void *sc, int portno, u_char *to, u_char *from,
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u_int32_t *count);
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static void uftdi_break(void *sc, int portno, int onoff);
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static int uftdi_8u232am_getrate(speed_t speed, int *rate);
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struct ucom_callback uftdi_callback = {
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uftdi_get_status,
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uftdi_set,
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uftdi_param,
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NULL,
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uftdi_open,
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NULL,
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uftdi_read,
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uftdi_write,
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};
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static int
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uftdi_match(device_t self)
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{
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struct usb_attach_arg *uaa = device_get_ivars(self);
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if (uaa->iface != NULL) {
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if (uaa->vendor == USB_VENDOR_FTDI &&
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(uaa->product == USB_PRODUCT_FTDI_SERIAL_2232C))
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return (UMATCH_VENDOR_IFACESUBCLASS);
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return (UMATCH_NONE);
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}
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DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n",
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uaa->vendor, uaa->product));
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if (uaa->vendor == USB_VENDOR_FTDI &&
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(uaa->product == USB_PRODUCT_FTDI_SERIAL_8U100AX ||
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uaa->product == USB_PRODUCT_FTDI_SERIAL_8U232AM ||
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uaa->product == USB_PRODUCT_FTDI_SEMC_DSS20 ||
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uaa->product == USB_PRODUCT_FTDI_CFA_631 ||
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uaa->product == USB_PRODUCT_FTDI_CFA_632 ||
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uaa->product == USB_PRODUCT_FTDI_CFA_633 ||
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uaa->product == USB_PRODUCT_FTDI_CFA_634 ||
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uaa->product == USB_PRODUCT_FTDI_CFA_635 ||
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uaa->product == USB_PRODUCT_FTDI_USBSERIAL ||
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uaa->product == USB_PRODUCT_FTDI_MX2_3 ||
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uaa->product == USB_PRODUCT_FTDI_MX4_5 ||
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uaa->product == USB_PRODUCT_FTDI_LK202 ||
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uaa->product == USB_PRODUCT_FTDI_LK204 ||
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uaa->product == USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13M ||
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uaa->product == USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13S ||
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uaa->product == USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13U ||
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uaa->product == USB_PRODUCT_FTDI_EISCOU ||
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uaa->product == USB_PRODUCT_FTDI_UOPTBR ||
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uaa->product == USB_PRODUCT_FTDI_EMCU2D ||
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uaa->product == USB_PRODUCT_FTDI_PCMSFU ||
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uaa->product == USB_PRODUCT_FTDI_EMCU2H ))
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return (UMATCH_VENDOR_PRODUCT);
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if (uaa->vendor == USB_VENDOR_SIIG2 &&
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(uaa->product == USB_PRODUCT_SIIG2_US2308))
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return (UMATCH_VENDOR_PRODUCT);
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if (uaa->vendor == USB_VENDOR_INTREPIDCS &&
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(uaa->product == USB_PRODUCT_INTREPIDCS_VALUECAN ||
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uaa->product == USB_PRODUCT_INTREPIDCS_NEOVI))
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return (UMATCH_VENDOR_PRODUCT);
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if (uaa->vendor == USB_VENDOR_BBELECTRONICS &&
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(uaa->product == USB_PRODUCT_BBELECTRONICS_USOTL4))
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return (UMATCH_VENDOR_PRODUCT);
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if (uaa->vendor == USB_VENDOR_MELCO &&
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(uaa->product == USB_PRODUCT_MELCO_PCOPRS1))
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return (UMATCH_VENDOR_PRODUCT);
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return (UMATCH_NONE);
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}
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static int
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uftdi_attach(device_t self)
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{
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struct uftdi_softc *sc = device_get_softc(self);
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struct usb_attach_arg *uaa = device_get_ivars(self);
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usbd_device_handle dev = uaa->device;
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usbd_interface_handle iface;
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usb_interface_descriptor_t *id;
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usb_endpoint_descriptor_t *ed;
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int i;
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usbd_status err;
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struct ucom_softc *ucom = &sc->sc_ucom;
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DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc));
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ucom->sc_dev = self;
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ucom->sc_udev = dev;
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if (uaa->iface == NULL) {
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/* Move the device into the configured state. */
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err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1);
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if (err) {
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device_printf(ucom->sc_dev,
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"failed to set configuration, err=%s\n",
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usbd_errstr(err));
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goto bad;
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}
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err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface);
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if (err) {
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device_printf(ucom->sc_dev,
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"failed to get interface, err=%s\n", usbd_errstr(err));
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goto bad;
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}
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} else {
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iface = uaa->iface;
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}
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id = usbd_get_interface_descriptor(iface);
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ucom->sc_iface = iface;
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switch( uaa->vendor ){
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case USB_VENDOR_FTDI:
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switch( uaa->product ){
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case USB_PRODUCT_FTDI_SERIAL_8U100AX:
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sc->sc_type = UFTDI_TYPE_SIO;
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sc->sc_hdrlen = 1;
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break;
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case USB_PRODUCT_FTDI_SEMC_DSS20:
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case USB_PRODUCT_FTDI_SERIAL_8U232AM:
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case USB_PRODUCT_FTDI_SERIAL_2232C:
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case USB_PRODUCT_FTDI_CFA_631:
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case USB_PRODUCT_FTDI_CFA_632:
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case USB_PRODUCT_FTDI_CFA_633:
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case USB_PRODUCT_FTDI_CFA_634:
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case USB_PRODUCT_FTDI_CFA_635:
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case USB_PRODUCT_FTDI_USBSERIAL:
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case USB_PRODUCT_FTDI_MX2_3:
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case USB_PRODUCT_FTDI_MX4_5:
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case USB_PRODUCT_FTDI_LK202:
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case USB_PRODUCT_FTDI_LK204:
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case USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13M:
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case USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13S:
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case USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13U:
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case USB_PRODUCT_FTDI_EISCOU:
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case USB_PRODUCT_FTDI_UOPTBR:
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case USB_PRODUCT_FTDI_EMCU2D:
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case USB_PRODUCT_FTDI_PCMSFU:
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case USB_PRODUCT_FTDI_EMCU2H:
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sc->sc_type = UFTDI_TYPE_8U232AM;
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sc->sc_hdrlen = 0;
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break;
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default: /* Can't happen */
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goto bad;
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}
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break;
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case USB_VENDOR_INTREPIDCS:
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switch( uaa->product ){
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case USB_PRODUCT_INTREPIDCS_VALUECAN:
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case USB_PRODUCT_INTREPIDCS_NEOVI:
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sc->sc_type = UFTDI_TYPE_8U232AM;
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sc->sc_hdrlen = 0;
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break;
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default: /* Can't happen */
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goto bad;
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}
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break;
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case USB_VENDOR_SIIG2:
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switch( uaa->product ){
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case USB_PRODUCT_SIIG2_US2308:
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sc->sc_type = UFTDI_TYPE_8U232AM;
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sc->sc_hdrlen = 0;
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break;
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default: /* Can't happen */
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goto bad;
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}
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break;
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case USB_VENDOR_BBELECTRONICS:
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switch( uaa->product ){
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case USB_PRODUCT_BBELECTRONICS_USOTL4:
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sc->sc_type = UFTDI_TYPE_8U232AM;
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sc->sc_hdrlen = 0;
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break;
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default: /* Can't happen */
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goto bad;
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}
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break;
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case USB_VENDOR_MELCO:
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switch( uaa->product ){
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case USB_PRODUCT_MELCO_PCOPRS1:
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sc->sc_type = UFTDI_TYPE_8U232AM;
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sc->sc_hdrlen = 0;
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break;
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default: /* Can't happen */
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goto bad;
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}
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break;
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default: /* Can't happen */
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goto bad;
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}
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ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
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for (i = 0; i < id->bNumEndpoints; i++) {
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int addr, dir, attr;
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ed = usbd_interface2endpoint_descriptor(iface, i);
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if (ed == NULL) {
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device_printf(ucom->sc_dev,
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"could not read endpoint descriptor\n");
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goto bad;
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}
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addr = ed->bEndpointAddress;
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dir = UE_GET_DIR(ed->bEndpointAddress);
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attr = ed->bmAttributes & UE_XFERTYPE;
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if (dir == UE_DIR_IN && attr == UE_BULK)
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ucom->sc_bulkin_no = addr;
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else if (dir == UE_DIR_OUT && attr == UE_BULK)
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ucom->sc_bulkout_no = addr;
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else {
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device_printf(ucom->sc_dev, "unexpected endpoint\n");
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goto bad;
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}
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}
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if (ucom->sc_bulkin_no == -1) {
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device_printf(ucom->sc_dev, "Could not find data bulk in\n");
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goto bad;
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}
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if (ucom->sc_bulkout_no == -1) {
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device_printf(ucom->sc_dev, "Could not find data bulk out\n");
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goto bad;
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}
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ucom->sc_parent = sc;
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if (uaa->iface == NULL)
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ucom->sc_portno = FTDI_PIT_SIOA;
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else
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ucom->sc_portno = FTDI_PIT_SIOA + id->bInterfaceNumber;
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/* bulkin, bulkout set above */
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ucom->sc_ibufsize = UFTDIIBUFSIZE;
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ucom->sc_obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen;
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ucom->sc_ibufsizepad = UFTDIIBUFSIZE;
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ucom->sc_opkthdrlen = sc->sc_hdrlen;
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ucom->sc_callback = &uftdi_callback;
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#if 0
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usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, ucom->sc_udev,
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ucom->sc_dev);
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#endif
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DPRINTF(("uftdi: in=0x%x out=0x%x\n", ucom->sc_bulkin_no, ucom->sc_bulkout_no));
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ucom_attach(&sc->sc_ucom);
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return 0;
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bad:
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DPRINTF(("uftdi_attach: ATTACH ERROR\n"));
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ucom->sc_dying = 1;
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return ENXIO;
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}
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#if 0
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int
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uftdi_activate(device_t self, enum devact act)
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{
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struct uftdi_softc *sc = (struct uftdi_softc *)self;
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int rv = 0;
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switch (act) {
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case DVACT_ACTIVATE:
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return (EOPNOTSUPP);
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case DVACT_DEACTIVATE:
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if (sc->sc_subdev != NULL)
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rv = config_deactivate(sc->sc_subdev);
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sc->sc_ucom.sc_dying = 1;
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break;
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}
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return (rv);
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}
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#endif
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static int
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uftdi_detach(device_t self)
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{
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struct uftdi_softc *sc = device_get_softc(self);
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int rv = 0;
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DPRINTF(("uftdi_detach: sc=%p\n", sc));
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sc->sc_ucom.sc_dying = 1;
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rv = ucom_detach(&sc->sc_ucom);
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return rv;
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}
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static int
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uftdi_open(void *vsc, int portno)
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{
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struct uftdi_softc *sc = vsc;
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struct ucom_softc *ucom = &sc->sc_ucom;
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usb_device_request_t req;
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usbd_status err;
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struct termios t;
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DPRINTF(("uftdi_open: sc=%p\n", sc));
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if (ucom->sc_dying)
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return (EIO);
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/* Perform a full reset on the device */
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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req.bRequest = FTDI_SIO_RESET;
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USETW(req.wValue, FTDI_SIO_RESET_SIO);
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USETW(req.wIndex, portno);
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USETW(req.wLength, 0);
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err = usbd_do_request(ucom->sc_udev, &req, NULL);
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if (err)
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return (EIO);
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/* Set 9600 baud, 2 stop bits, no parity, 8 bits */
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t.c_ospeed = 9600;
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t.c_cflag = CSTOPB | CS8;
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(void)uftdi_param(sc, portno, &t);
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/* Turn on RTS/CTS flow control */
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req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
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req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
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USETW(req.wValue, 0);
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USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno);
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USETW(req.wLength, 0);
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err = usbd_do_request(ucom->sc_udev, &req, NULL);
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if (err)
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return (EIO);
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return (0);
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}
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static void
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uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count)
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{
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struct uftdi_softc *sc = vsc;
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u_char msr, lsr;
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DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno,
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*count));
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msr = FTDI_GET_MSR(*ptr);
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lsr = FTDI_GET_LSR(*ptr);
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#ifdef USB_DEBUG
|
|
if (*count != 2)
|
|
DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]="
|
|
"0x%02x\n", sc, portno, *count, (*ptr)[2]));
|
|
#endif
|
|
|
|
if (sc->sc_msr != msr ||
|
|
(sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) {
|
|
DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) "
|
|
"lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr,
|
|
lsr, sc->sc_lsr));
|
|
sc->sc_msr = msr;
|
|
sc->sc_lsr = lsr;
|
|
ucom_status_change(&sc->sc_ucom);
|
|
}
|
|
|
|
/* Pick up status and adjust data part. */
|
|
*ptr += 2;
|
|
*count -= 2;
|
|
}
|
|
|
|
static void
|
|
uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count)
|
|
{
|
|
struct uftdi_softc *sc = vsc;
|
|
|
|
DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n",
|
|
vsc, portno, *count, from[0]));
|
|
|
|
/* Make length tag and copy data */
|
|
if (sc->sc_hdrlen > 0)
|
|
*to = FTDI_OUT_TAG(*count, portno);
|
|
|
|
memcpy(to + sc->sc_hdrlen, from, *count);
|
|
*count += sc->sc_hdrlen;
|
|
}
|
|
|
|
static void
|
|
uftdi_set(void *vsc, int portno, int reg, int onoff)
|
|
{
|
|
struct uftdi_softc *sc = vsc;
|
|
struct ucom_softc *ucom = vsc;
|
|
usb_device_request_t req;
|
|
int ctl;
|
|
|
|
DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno,
|
|
reg, onoff));
|
|
|
|
switch (reg) {
|
|
case UCOM_SET_DTR:
|
|
ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW;
|
|
break;
|
|
case UCOM_SET_RTS:
|
|
ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW;
|
|
break;
|
|
case UCOM_SET_BREAK:
|
|
uftdi_break(sc, portno, onoff);
|
|
return;
|
|
default:
|
|
return;
|
|
}
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_MODEM_CTRL;
|
|
USETW(req.wValue, ctl);
|
|
USETW(req.wIndex, portno);
|
|
USETW(req.wLength, 0);
|
|
DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x "
|
|
"index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
|
|
UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
|
|
(void)usbd_do_request(ucom->sc_udev, &req, NULL);
|
|
}
|
|
|
|
static int
|
|
uftdi_param(void *vsc, int portno, struct termios *t)
|
|
{
|
|
struct uftdi_softc *sc = vsc;
|
|
struct ucom_softc *ucom = &sc->sc_ucom;
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
int rate=0, data, flow;
|
|
|
|
DPRINTF(("uftdi_param: sc=%p\n", sc));
|
|
|
|
if (ucom->sc_dying)
|
|
return (EIO);
|
|
|
|
switch (sc->sc_type) {
|
|
case UFTDI_TYPE_SIO:
|
|
switch (t->c_ospeed) {
|
|
case 300: rate = ftdi_sio_b300; break;
|
|
case 600: rate = ftdi_sio_b600; break;
|
|
case 1200: rate = ftdi_sio_b1200; break;
|
|
case 2400: rate = ftdi_sio_b2400; break;
|
|
case 4800: rate = ftdi_sio_b4800; break;
|
|
case 9600: rate = ftdi_sio_b9600; break;
|
|
case 19200: rate = ftdi_sio_b19200; break;
|
|
case 38400: rate = ftdi_sio_b38400; break;
|
|
case 57600: rate = ftdi_sio_b57600; break;
|
|
case 115200: rate = ftdi_sio_b115200; break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
break;
|
|
|
|
case UFTDI_TYPE_8U232AM:
|
|
if (uftdi_8u232am_getrate(t->c_ospeed, &rate) == -1)
|
|
return (EINVAL);
|
|
break;
|
|
}
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_BAUD_RATE;
|
|
USETW(req.wValue, rate);
|
|
USETW(req.wIndex, portno);
|
|
USETW(req.wLength, 0);
|
|
DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x "
|
|
"index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
|
|
UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
|
|
err = usbd_do_request(ucom->sc_udev, &req, NULL);
|
|
if (err)
|
|
return (EIO);
|
|
|
|
if (ISSET(t->c_cflag, CSTOPB))
|
|
data = FTDI_SIO_SET_DATA_STOP_BITS_2;
|
|
else
|
|
data = FTDI_SIO_SET_DATA_STOP_BITS_1;
|
|
if (ISSET(t->c_cflag, PARENB)) {
|
|
if (ISSET(t->c_cflag, PARODD))
|
|
data |= FTDI_SIO_SET_DATA_PARITY_ODD;
|
|
else
|
|
data |= FTDI_SIO_SET_DATA_PARITY_EVEN;
|
|
} else
|
|
data |= FTDI_SIO_SET_DATA_PARITY_NONE;
|
|
switch (ISSET(t->c_cflag, CSIZE)) {
|
|
case CS5:
|
|
data |= FTDI_SIO_SET_DATA_BITS(5);
|
|
break;
|
|
case CS6:
|
|
data |= FTDI_SIO_SET_DATA_BITS(6);
|
|
break;
|
|
case CS7:
|
|
data |= FTDI_SIO_SET_DATA_BITS(7);
|
|
break;
|
|
case CS8:
|
|
data |= FTDI_SIO_SET_DATA_BITS(8);
|
|
break;
|
|
}
|
|
sc->last_lcr = data;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_DATA;
|
|
USETW(req.wValue, data);
|
|
USETW(req.wIndex, portno);
|
|
USETW(req.wLength, 0);
|
|
DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x "
|
|
"index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
|
|
UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
|
|
err = usbd_do_request(ucom->sc_udev, &req, NULL);
|
|
if (err)
|
|
return (EIO);
|
|
|
|
if (ISSET(t->c_cflag, CRTSCTS)) {
|
|
flow = FTDI_SIO_RTS_CTS_HS;
|
|
USETW(req.wValue, 0);
|
|
} else if (ISSET(t->c_iflag, IXON|IXOFF)) {
|
|
flow = FTDI_SIO_XON_XOFF_HS;
|
|
USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]);
|
|
} else {
|
|
flow = FTDI_SIO_DISABLE_FLOW_CTRL;
|
|
USETW(req.wValue, 0);
|
|
}
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
|
|
USETW2(req.wIndex, flow, portno);
|
|
USETW(req.wLength, 0);
|
|
err = usbd_do_request(ucom->sc_udev, &req, NULL);
|
|
if (err)
|
|
return (EIO);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr)
|
|
{
|
|
struct uftdi_softc *sc = vsc;
|
|
|
|
DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n",
|
|
sc->sc_msr, sc->sc_lsr));
|
|
|
|
if (msr != NULL)
|
|
*msr = sc->sc_msr;
|
|
if (lsr != NULL)
|
|
*lsr = sc->sc_lsr;
|
|
}
|
|
|
|
void
|
|
uftdi_break(void *vsc, int portno, int onoff)
|
|
{
|
|
struct uftdi_softc *sc = vsc;
|
|
struct ucom_softc *ucom = vsc;
|
|
|
|
usb_device_request_t req;
|
|
int data;
|
|
|
|
DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno,
|
|
onoff));
|
|
|
|
if (onoff) {
|
|
data = sc->last_lcr | FTDI_SIO_SET_BREAK;
|
|
} else {
|
|
data = sc->last_lcr;
|
|
}
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = FTDI_SIO_SET_DATA;
|
|
USETW(req.wValue, data);
|
|
USETW(req.wIndex, portno);
|
|
USETW(req.wLength, 0);
|
|
(void)usbd_do_request(ucom->sc_udev, &req, NULL);
|
|
}
|
|
|
|
static int
|
|
uftdi_8u232am_getrate(speed_t speed, int *rate)
|
|
{
|
|
/* Table of the nearest even powers-of-2 for values 0..15. */
|
|
static const unsigned char roundoff[16] = {
|
|
0, 2, 2, 4, 4, 4, 8, 8,
|
|
8, 8, 8, 8, 16, 16, 16, 16,
|
|
};
|
|
|
|
unsigned int d, freq;
|
|
int result;
|
|
|
|
if (speed <= 0)
|
|
return (-1);
|
|
|
|
/* Special cases for 2M and 3M. */
|
|
if (speed >= 3000000 * 100 / 103 &&
|
|
speed <= 3000000 * 100 / 97) {
|
|
result = 0;
|
|
goto done;
|
|
}
|
|
if (speed >= 2000000 * 100 / 103 &&
|
|
speed <= 2000000 * 100 / 97) {
|
|
result = 1;
|
|
goto done;
|
|
}
|
|
|
|
d = (FTDI_8U232AM_FREQ << 4) / speed;
|
|
d = (d & ~15) + roundoff[d & 15];
|
|
|
|
if (d < FTDI_8U232AM_MIN_DIV)
|
|
d = FTDI_8U232AM_MIN_DIV;
|
|
else if (d > FTDI_8U232AM_MAX_DIV)
|
|
d = FTDI_8U232AM_MAX_DIV;
|
|
|
|
/*
|
|
* Calculate the frequency needed for d to exactly divide down
|
|
* to our target speed, and check that the actual frequency is
|
|
* within 3% of this.
|
|
*/
|
|
freq = speed * d;
|
|
if (freq < (quad_t)(FTDI_8U232AM_FREQ << 4) * 100 / 103 ||
|
|
freq > (quad_t)(FTDI_8U232AM_FREQ << 4) * 100 / 97)
|
|
return (-1);
|
|
|
|
/*
|
|
* Pack the divisor into the resultant value. The lower
|
|
* 14-bits hold the integral part, while the upper 2 bits
|
|
* encode the fractional component: either 0, 0.5, 0.25, or
|
|
* 0.125.
|
|
*/
|
|
result = d >> 4;
|
|
if (d & 8)
|
|
result |= 0x4000;
|
|
else if (d & 4)
|
|
result |= 0x8000;
|
|
else if (d & 2)
|
|
result |= 0xc000;
|
|
|
|
done:
|
|
*rate = result;
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t uftdi_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uftdi_match),
|
|
DEVMETHOD(device_attach, uftdi_attach),
|
|
DEVMETHOD(device_detach, uftdi_detach),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t uftdi_driver = {
|
|
"ucom",
|
|
uftdi_methods,
|
|
sizeof (struct uftdi_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(uftdi, uhub, uftdi_driver, ucom_devclass, usbd_driver_load, 0);
|
|
MODULE_DEPEND(uftdi, usb, 1, 1, 1);
|
|
MODULE_DEPEND(uftdi, ucom,UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
|