diff options
Diffstat (limited to 'sys/dev/digi/digi.h')
| -rw-r--r-- | sys/dev/digi/digi.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/sys/dev/digi/digi.h b/sys/dev/digi/digi.h new file mode 100644 index 0000000..94e66b6 --- /dev/null +++ b/sys/dev/digi/digi.h @@ -0,0 +1,204 @@ +/*- + * Copyright (c) 2001 Brian Somers <brian@Awfulhak.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. + * + * $FreeBSD$ + */ + +#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 DEBUG + +#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; + ushort txbufsize; + ushort rxbufsize; + volatile struct board_chan *bc; + struct tty *tp; + + dev_t 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; +}; + +/* + * 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; + ushort numports; /* number of ports on card */ + ushort port; /* I/O port */ + ushort 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; + dev_t 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; + digiModel_t 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_modhandler(module_t _mod, int _event, void *_arg); +int digi_attach(struct digi_softc *); +int digi_detach(device_t _dev); +int digi_shutdown(device_t _dev); |
