/*      $NetBSD: ubsavar.h,v 1.11 2019/05/09 02:43:35 mrg Exp $ */
/*-
* Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ichiro FUKUHARA ([email protected]).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#define UBSA_MODVER             1       /* module version */

#define UBSA_DEFAULT_CONFIG_INDEX       0
#define UBSA_IFACE_INDEX_OFFSET 0

#define UBSA_INTR_INTERVAL      100     /* ms */

#define UBSA_SET_BAUDRATE       0x00
#define UBSA_SET_STOP_BITS      0x01
#define UBSA_SET_DATA_BITS      0x02
#define UBSA_SET_PARITY         0x03
#define UBSA_SET_DTR            0x0A
#define UBSA_SET_RTS            0x0B
#define UBSA_SET_BREAK          0x0C
#define UBSA_SET_FLOW_CTRL      0x10

#define UBSA_QUADUMTS_SET_PIN   0x22

#define UBSA_PARITY_NONE        0x00
#define UBSA_PARITY_EVEN        0x01
#define UBSA_PARITY_ODD         0x02
#define UBSA_PARITY_MARK        0x03
#define UBSA_PARITY_SPACE       0x04

#define UBSA_FLOW_NONE          0x0000
#define UBSA_FLOW_OCTS          0x0001
#define UBSA_FLOW_ODSR          0x0002
#define UBSA_FLOW_IDSR          0x0004
#define UBSA_FLOW_IDTR          0x0008
#define UBSA_FLOW_IRTS          0x0010
#define UBSA_FLOW_ORTS          0x0020
#define UBSA_FLOW_UNKNOWN       0x0040
#define UBSA_FLOW_OXON          0x0080
#define UBSA_FLOW_IXON          0x0100

/* line status register */
#define UBSA_LSR_TSRE           0x40    /* Transmitter empty: byte sent */
#define UBSA_LSR_TXRDY          0x20    /* Transmitter buffer empty */
#define UBSA_LSR_BI             0x10    /* Break detected */
#define UBSA_LSR_FE             0x08    /* Framing error: bad stop bit */
#define UBSA_LSR_PE             0x04    /* Parity error */
#define UBSA_LSR_OE             0x02    /* Overrun, lost incoming byte */
#define UBSA_LSR_RXRDY          0x01    /* Byte ready in Receive Buffer */
#define UBSA_LSR_RCV_MASK       0x1f    /* Mask for incoming data or error */

/* modem status register */
/* All deltas are from the last read of the MSR. */
#define UBSA_MSR_DCD            0x80    /* Current Data Carrier Detect */
#define UBSA_MSR_RI             0x40    /* Current Ring Indicator */
#define UBSA_MSR_DSR            0x20    /* Current Data Set Ready */
#define UBSA_MSR_CTS            0x10    /* Current Clear to Send */
#define UBSA_MSR_DDCD           0x08    /* DCD has changed state */
#define UBSA_MSR_TERI           0x04    /* RI has toggled low to high */
#define UBSA_MSR_DDSR           0x02    /* DSR has changed state */
#define UBSA_MSR_DCTS           0x01    /* CTS has changed state */

#define UBSA_MAXCONN            3

struct  ubsa_softc {
       device_t                sc_dev;         /* base device */
       struct usbd_device *    sc_udev;        /* USB device */
       struct usbd_interface * sc_iface[UBSA_MAXCONN]; /* interface */

       int                     sc_iface_number[UBSA_MAXCONN];  /* interface number */
       int                     sc_config_index;        /* USB CONFIG_INDEX */

       int                     sc_intr_number; /* interrupt number */
       struct usbd_pipe *      sc_intr_pipe;   /* interrupt pipe */
       u_char                  *sc_intr_buf;   /* interrupt buffer */
       int                     sc_isize;

       u_char                  sc_dtr;         /* current DTR state */
       u_char                  sc_rts;         /* current RTS state */

       u_char                  sc_lsr;         /* Local status register */
       u_char                  sc_msr;         /* ubsa status register */

       device_t                sc_subdevs[UBSA_MAXCONN]; /* ucom device */
       int                     sc_numif;       /* number of interfaces */

       bool                    sc_dying;       /* disconnecting */
       u_char                  sc_quadumts;
       uint16_t                sc_devflags;
};


void ubsa_intr(struct usbd_xfer *, void *, usbd_status);

void ubsa_get_status(void *, int, u_char *, u_char *);
void ubsa_set(void *, int, int, int);
int  ubsa_param(void *, int, struct termios *);
int  ubsa_open(void *, int);
void ubsa_close(void *, int);
void ubsa_close_pipe(struct ubsa_softc *);

void ubsa_break(struct ubsa_softc *, int, int);
int  ubsa_request(struct ubsa_softc *, int, uint8_t, uint16_t);
void ubsa_dtr(struct ubsa_softc *, int, int);
void ubsa_quadumts_dtr(struct ubsa_softc *, int, int);
void ubsa_rts(struct ubsa_softc *, int, int);
void ubsa_quadumts_rts(struct ubsa_softc *, int, int);
void ubsa_baudrate(struct ubsa_softc *, int, speed_t);
void ubsa_parity(struct ubsa_softc *, int, tcflag_t);
void ubsa_databits(struct ubsa_softc *, int, tcflag_t);
void ubsa_stopbits(struct ubsa_softc *, int, tcflag_t);
void ubsa_flow(struct ubsa_softc *, int, tcflag_t, tcflag_t);

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