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/*-
* Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
* based on work by Slawa Olhovchenkov
* John Prince <johnp@knight-trosoft.com>
* Eric Hernes
* 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.
*
* $FreeBSD$
*/
#define W(p) (*(u_int16_t *)(p))
#define vW(p) (*(u_int16_t volatile *)(p))
#define D(p) (*(u_int32_t *)(p))
#define vD(p) (*(u_int32_t volatile *)(p))
#define CE_OVERRUN 0
#define CE_INTERRUPT_BUF_OVERFLOW 1
#define CE_TTY_BUF_OVERFLOW 2
#define CE_NTYPES 3
#define CE_RECORD(com, errnum) (++(com)->delta_error_counts[errnum])
/*#define DIGI_INTERRUPT*/
#ifndef DEBUG
#define DEBUG
#endif
#ifdef DEBUG
extern unsigned digi_debug;
#define DLOG(level, args) if (digi_debug & (level)) device_printf args
#else
#define DLOG(level, args)
#endif
struct digi_softc;
/* digiboard port structure */
struct digi_p {
struct digi_softc *sc;
int status;
#define ENABLED 1
#define DIGI_DTR_OFF 2
#define PAUSE_TX 8
#define PAUSE_RX 16
int opencnt;
u_short txbufsize;
u_short rxbufsize;
volatile struct board_chan *bc;
struct tty *tp;
struct cdev *dev[6];
u_char *txbuf;
u_char *rxbuf;
u_char txwin;
u_char rxwin;
u_char pnum; /* port number */
u_char modemfake; /* Modem values to be forced */
u_char mstat;
u_char modem; /* Force values */
int active_out; /* nonzero if the callout device is open */
int dtr_wait; /* time to hold DTR down on close (* 1/hz) */
u_int wopeners; /* # processes waiting for DCD in open() */
/*
* The high level of the driver never reads status registers directly
* because there would be too many side effects to handle conveniently.
* Instead, it reads copies of the registers stored here by the
* interrupt handler.
*/
u_char last_modem_status; /* last MSR read by intr handler */
u_char prev_modem_status; /* last MSR handled by high level */
/* Initial state. */
struct termios it_in; /* should be in struct tty */
struct termios it_out;
/* Lock state. */
struct termios lt_in; /* should be in struct tty */
struct termios lt_out;
u_int do_timestamp;
u_int do_dcd_timestamp;
struct timeval dcd_timestamp;
u_long bytes_in, bytes_out;
u_int delta_error_counts[CE_NTYPES];
u_long error_counts;
tcflag_t c_iflag; /* hold true IXON/IXOFF/IXANY */
int lcc, lostcc, lbuf;
u_char send_ring;
unsigned laltpin : 1; /* Alternate pin settings locked */
unsigned ialtpin : 1; /* Initial alternate pin settings */
int cd; /* Depends on the altpin setting */
int dsr;
};
/*
* Map TIOCM_* values to digiboard values
*/
struct digi_control_signals {
int rts;
int cd;
int dsr;
int cts;
int ri;
int dtr;
};
enum digi_board_status {
DIGI_STATUS_NOTINIT,
DIGI_STATUS_ENABLED,
DIGI_STATUS_DISABLED
};
/* Digiboard per-board structure */
struct digi_softc {
/* struct board_info */
device_t dev;
const char *name;
enum digi_board_status status;
u_short numports; /* number of ports on card */
u_int port; /* I/O port */
u_int wport; /* window select I/O port */
struct {
struct resource *mem;
int mrid;
struct resource *irq;
int irqrid;
struct resource *io;
int iorid;
void *irqHandler;
int unit;
struct cdev *ctldev;
} res;
u_char *vmem; /* virtual memory address */
u_char *memcmd;
volatile u_char *memevent;
long pmem; /* physical memory address */
struct {
u_char *data;
size_t size;
} bios, fep, link;
#ifdef DIGI_INTERRUPT
struct timeval intr_timestamp;
#endif
struct digi_p *ports; /* pointer to array of port descriptors */
struct tty *ttys; /* pointer to array of TTY structures */
volatile struct global_data *gdata;
u_char window; /* saved window */
int win_size;
int win_bits;
int mem_size;
int mem_seg;
enum digi_model model;
const struct digi_control_signals *csigs;
int opencnt;
unsigned pcibus : 1; /* On a PCI bus ? */
struct callout_handle callout; /* poll timeout handle */
struct callout_handle inttest; /* int test timeout handle */
const char *module;
u_char *(*setwin)(struct digi_softc *_sc, unsigned _addr);
void (*hidewin)(struct digi_softc *_sc);
void (*towin)(struct digi_softc *_sc, int _win);
#ifdef DEBUG
int intr_count;
#endif
};
extern devclass_t digi_devclass;
extern const struct digi_control_signals digi_xixe_signals;
extern const struct digi_control_signals digi_normal_signals;
const char *digi_errortxt(int _id);
int digi_attach(struct digi_softc *);
int digi_detach(device_t _dev);
int digi_shutdown(device_t _dev);
void digi_delay(struct digi_softc *_sc, const char *_txt,
u_long _timo);
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