FreeBSD/Linux Kernel Cross Reference
sys/dev/sbus/magmareg.h

     /*      $NetBSD: magmareg.h,v 1.7 2003/02/22 05:11:16 tsutsui Exp $     */
     /* magmareg.h
      *
      *  Copyright (c) 1998 Iain Hibbert
      *  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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Iain Hibbert
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
     *
     */
    
    #ifdef MAGMA_DEBUG
    #define dprintf(x) printf x
    #else
    #define dprintf(x)
    #endif
    
    /*  The mapping of minor device number -> card and port is done as
     * follows by default:
     *
     *  +---+---+---+---+---+---+---+---+
     *  | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
     *  +---+---+---+---+---+---+---+---+
     *    |   |   |   |   |   |   |   |
     *    |   |   |   |   +---+---+---+---> port number
     *    |   |   |   |
     *    |   |   |   +-------------------> dialout (on tty ports)
     *    |   |   |
     *    |   |   +-----------------------> unused
     *    |   |
     *    +---+---------------------------> card number
     *
     */
    
    #define MAGMA_MAX_CARDS         4
    #define MAGMA_MAX_TTY           16
    #define MAGMA_MAX_BPP           2
    #define MAGMA_MAX_CD1400        4
    #define MAGMA_MAX_CD1190        2
    
    #define MAGMA_CARD(x)   ((minor(x) >> 6) & 0x03)
    #define MAGMA_PORT(x)   (minor(x) & 0x0f)
    
    #define MTTY_DIALOUT(x) (minor(x) & 0x10)
    
    /*
     * Supported Card Types
     */
    struct magma_board_info {
            const char *mb_sbusname;        /* sbus_attach_args.sa_name */
            const char *mb_name;            /* cardname to match against */
            const char *mb_realname;        /* english card name */
            int mb_nser;                    /* number of serial ports */
            int mb_npar;                    /* number of parallel ports */
            int mb_ncd1400;                 /* number of CD1400 chips */
            int mb_svcackr;                 /* svcackr offset */
            int mb_svcackt;                 /* svcackt offset */
            int mb_svcackm;                 /* svcackm offset */
            int mb_cd1400[MAGMA_MAX_CD1400];/* cd1400 chip register offsets */
            int mb_ncd1190;                 /* number of CD1190 chips */
            int mb_cd1190[MAGMA_MAX_CD1190];/* cd1190 chip register offsets */
    };
    
    /*
     * cd1400 chip data
     */
    struct cd1400 {
            __volatile u_char *cd_reg;      /* chip registers */
            int cd_chiprev;                 /* chip revision */
            int cd_clock;                   /* clock speed in MHz */
            int cd_parmode;                 /* parallel mode operation */
    };
    
    /*
     * cd1190 chip data
     */
    struct cd1190 {
           __volatile u_char *cd_reg;      /* chip registers */
           int cd_chiprev;                 /* chip revision */
   };
   
   /* software state for each card */
   struct magma_softc {
           struct device   ms_dev;         /* required. must be first in softc */
           struct sbusdev  ms_sd;          /* sbus device */
           struct evcnt    ms_intrcnt;     /* statistics */
   
           /* cd1400 chip info */
           int     ms_ncd1400;
           struct cd1400 ms_cd1400[MAGMA_MAX_CD1400];
           __volatile u_char *ms_svcackr;  /* CD1400 service acknowledge receive */
           __volatile u_char *ms_svcackt;  /* CD1400 service acknowledge transmit */
           __volatile u_char *ms_svcackm;  /* CD1400 service acknowledge modem */
   
           /* cd1190 chip info */
           int ms_ncd1190;
           struct cd1190 ms_cd1190[MAGMA_MAX_CD1190];
   
           struct magma_board_info *ms_board;      /* what am I? */
   
           struct mtty_softc *ms_mtty;
           struct mbpp_softc *ms_mbpp;
   
           /* softintr(9) cookie */
           void    *ms_sicookie;
   };
   
   #define MTTY_RBUF_SIZE          (2 * 512)
   #define MTTY_RX_FIFO_THRESHOLD  6
   #define MTTY_RX_DTR_THRESHOLD   9
   
   struct mtty_port {
           struct cd1400 *mp_cd1400;       /* ptr to chip */
           int mp_channel;                 /* and channel */
           struct tty *mp_tty;
   
           int mp_openflags;       /* default tty flags */
           int mp_flags;           /* port flags */
           int mp_carrier;         /* state of carrier */
   
           u_char *mp_rbuf;        /* ring buffer start */
           u_char *mp_rend;        /* ring buffer end */
           u_char *mp_rget;        /* ring buffer read pointer */
           u_char *mp_rput;        /* ring buffer write pointer */
   
           u_char *mp_txp;         /* transmit character pointer */
           int mp_txc;             /* transmit character counter */
   };
   
   #define MTTYF_CARRIER_CHANGED   (1<<0)
   #define MTTYF_SET_BREAK         (1<<1)
   #define MTTYF_CLR_BREAK         (1<<2)
   #define MTTYF_DONE              (1<<3)
   #define MTTYF_STOP              (1<<4)
   #define MTTYF_RING_OVERFLOW     (1<<5)
   
   struct mtty_softc {
           struct device ms_dev;           /* device info */
           int ms_nports;                  /* tty ports */
           struct mtty_port ms_port[MAGMA_MAX_TTY];
   };
   
   #define MBPP_RX_FIFO_THRESHOLD  25
   
   struct mbpp_port {
           struct cd1400 *mp_cd1400;       /* for LC2+1Sp card */
           struct cd1190 *mp_cd1190;       /* all the others   */
   
           struct callout mp_timeout_ch;
           struct callout mp_start_ch;
   
           int     mp_flags;
   
           struct mbpp_param mp_param;
   #define mp_burst        mp_param.bp_burst
   #define mp_timeout      mp_param.bp_timeout
   #define mp_delay        mp_param.bp_delay
   
           u_char  *mp_ptr;                /* pointer to I/O data */
           int     mp_cnt;                 /* count of I/O chars */
   };
   
   #define MBPPF_OPEN      (1<<0)
   #define MBPPF_TIMEOUT   (1<<1)
   #define MBPPF_UIO       (1<<2)
   #define MBPPF_DELAY     (1<<3)
   #define MBPPF_WAKEUP    (1<<4)
   
   struct mbpp_softc {
           struct device ms_dev;           /* device info */
           int ms_nports;                  /* parallel ports */
           struct mbpp_port ms_port[MAGMA_MAX_BPP];
   };
   
   /*
    * useful macros
    */
   #define SET(t, f)       ((t) |= (f))
   #define CLR(t, f)       ((t) &= ~(f))
   #define ISSET(t, f)     ((t) & (f))
   
   /* internal function prototypes */
   
   int cd1400_compute_baud __P((speed_t, int, int *, int *));
   __inline void cd1400_write_ccr __P((struct cd1400 *, u_char));
   __inline u_char cd1400_read_reg __P((struct cd1400 *, int));
   __inline void cd1400_write_reg __P((struct cd1400 *, int, u_char));
   void cd1400_enable_transmitter __P((struct cd1400 *, int));
   
   int magma_match __P((struct device *, struct cfdata *, void *));
   void magma_attach __P((struct device *, struct device *, void *));
   int magma_hard __P((void *));
   void magma_soft __P((void *));
   
   int mtty_match __P((struct device *, struct cfdata *, void *));
   void mtty_attach __P((struct device *, struct device *, void *));
   int mtty_modem_control __P((struct mtty_port *, int, int));
   int mtty_param __P((struct tty *, struct termios *));
   void mtty_start __P((struct tty *));
   
   int mbpp_match __P((struct device *, struct cfdata *, void *));
   void mbpp_attach __P((struct device *, struct device *, void *));
   void mbpp_timeout __P((void *));
   void mbpp_start __P((void *));
   int mbpp_send __P((struct mbpp_port *, caddr_t, int));
   int mbpp_recv __P((struct mbpp_port *, caddr_t, int));
   int mbpp_hztoms __P((int));
   int mbpp_mstohz __P((int));

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