39f3ec0342
the device indicates that it wasn't able to write all the data in the buffer out. Ed Schouten doesn't like the idea of a panic here. I think for production code, we need something better. For right now, while we're trying to assess the impact of this issue, a panic is OK. So complain to me, not him if this is hit.
169 lines
6.4 KiB
C
169 lines
6.4 KiB
C
/* $NetBSD: ucomvar.h,v 1.9 2001/01/23 21:56:17 augustss Exp $ */
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 2001-2002, Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
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* All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1999 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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* 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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/* Module interface related macros */
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#define UCOM_MODVER 1
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#define UCOM_MINVER 1
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#define UCOM_PREFVER UCOM_MODVER
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#define UCOM_MAXVER 1
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/* Macros to clear/set/test flags. */
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#define SET(t, f) (t) |= (f)
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#define CLR(t, f) (t) &= ~((unsigned)(f))
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#define ISSET(t, f) ((t) & (f))
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#define UCOM_CALLOUT_MASK 0x80
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#define UCOMUNIT_MASK 0x3ff7f
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#define UCOMDIALOUT_MASK 0x80000
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#define UCOMCALLUNIT_MASK 0x40000
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#define UCOMUNIT(x) (minor(x) & UCOMUNIT_MASK)
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#define UCOMDIALOUT(x) (minor(x) & UCOMDIALOUT_MASK)
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#define UCOMCALLUNIT(x) (minor(x) & UCOMCALLUNIT_MASK)
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#define UCOM_UNK_PORTNO -1 /* XXX */
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struct tty;
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struct ucom_softc;
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struct ucom_callback {
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void (*ucom_get_status)(void *, int, u_char *, u_char *);
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void (*ucom_set)(void *, int, int, int);
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#define UCOM_SET_DTR 1
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#define UCOM_SET_RTS 2
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#define UCOM_SET_BREAK 3
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int (*ucom_param)(void *, int, struct termios *);
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int (*ucom_ioctl)(void *, int, u_long, caddr_t, struct thread *);
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int (*ucom_open)(void *, int);
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void (*ucom_close)(void *, int);
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void (*ucom_read)(void *, int, u_char **, u_int32_t *);
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size_t (*ucom_write)(void *, int, struct tty *, u_char *, u_int32_t);
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};
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/* line status register */
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#define ULSR_RCV_FIFO 0x80
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#define ULSR_TSRE 0x40 /* Transmitter empty: byte sent */
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#define ULSR_TXRDY 0x20 /* Transmitter buffer empty */
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#define ULSR_BI 0x10 /* Break detected */
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#define ULSR_FE 0x08 /* Framing error: bad stop bit */
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#define ULSR_PE 0x04 /* Parity error */
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#define ULSR_OE 0x02 /* Overrun, lost incoming byte */
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#define ULSR_RXRDY 0x01 /* Byte ready in Receive Buffer */
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#define ULSR_RCV_MASK 0x1f /* Mask for incoming data or error */
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/* ucom state declarations */
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#define UCS_RXSTOP 0x0001 /* Rx stopped */
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#define UCS_TXBUSY 0x0002 /* Tx busy */
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#define UCS_RTS_IFLOW 0x0008 /* use RTS input flow control */
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struct ucom_softc {
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device_t sc_dev; /* base device */
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usbd_device_handle sc_udev; /* USB device */
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usbd_interface_handle sc_iface; /* data interface */
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int sc_bulkin_no; /* bulk in endpoint address */
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usbd_pipe_handle sc_bulkin_pipe; /* bulk in pipe */
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usbd_xfer_handle sc_ixfer; /* read request */
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u_char *sc_ibuf; /* read buffer */
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u_int sc_ibufsize; /* read buffer size */
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u_int sc_ibufsizepad; /* read buffer size padded */
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int sc_bulkout_no; /* bulk out endpoint address */
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usbd_pipe_handle sc_bulkout_pipe;/* bulk out pipe */
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usbd_xfer_handle sc_oxfer; /* write request */
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u_char *sc_obuf; /* write buffer */
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u_int sc_obufsize; /* write buffer size */
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u_int sc_opkthdrlen; /* header length of
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output packet */
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u_int sc_obufactive; /* Active bytes in buffer */
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struct ucom_callback *sc_callback;
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void *sc_parent;
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int sc_portno;
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struct tty *sc_tty; /* our tty */
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int sc_state;
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int sc_poll;
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u_char sc_lsr;
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u_char sc_msr;
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u_char sc_mcr;
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u_char sc_dying; /* disconnecting */
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};
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extern devclass_t ucom_devclass;
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void ucom_attach_tty(struct ucom_softc *, char*, int);
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int ucom_attach(struct ucom_softc *);
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int ucom_detach(struct ucom_softc *);
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void ucom_status_change(struct ucom_softc *);
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