sys/dev/sbus/magmareg.h

   1 /*      $NetBSD: magmareg.h,v 1.15 2009/05/12 14:43:59 cegger Exp $     */
   2
   3 /*-
   4  *  Copyright (c) 1998 Iain Hibbert
   5  *  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifdef MAGMA_DEBUG
  29 #define dprintf(x) printf x
  30 #else
  31 #define dprintf(x)
  32 #endif
  33
  34 /*  The mapping of minor device number -> card and port is done as
  35  * follows by default:
  36  *
  37  *  +---+---+---+---+---+---+---+---+
  38  *  | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
  39  *  +---+---+---+---+---+---+---+---+
  40  *    |   |   |   |   |   |   |   |
  41  *    |   |   |   |   +---+---+---+---> port number
  42  *    |   |   |   |
  43  *    |   |   |   +-------------------> dialout (on tty ports)
  44  *    |   |   |
  45  *    |   |   +-----------------------> unused
  46  *    |   |
  47  *    +---+---------------------------> card number
  48  *
  49  */
  50
  51 #define MAGMA_MAX_CARDS         4
  52 #define MAGMA_MAX_TTY           16
  53 #define MAGMA_MAX_BPP           2
  54 #define MAGMA_MAX_CD1400        4
  55 #define MAGMA_MAX_CD1190        2
  56
  57 #define MAGMA_CARD(x)   ((minor(x) >> 6) & 0x03)
  58 #define MAGMA_PORT(x)   (minor(x) & 0x0f)
  59
  60 #define MTTY_DIALOUT(x) (minor(x) & 0x10)
  61
  62 /*
  63  * Supported Card Types
  64  */
  65 struct magma_board_info {
  66         const char *mb_sbusname;        /* sbus_attach_args.sa_name */
  67         const char *mb_name;            /* cardname to match against */
  68         const char *mb_realname;        /* english card name */
  69         int mb_nser;                    /* number of serial ports */
  70         int mb_npar;                    /* number of parallel ports */
  71         int mb_ncd1400;                 /* number of CD1400 chips */
  72         int mb_svcackr;                 /* svcackr offset */
  73         int mb_svcackt;                 /* svcackt offset */
  74         int mb_svcackm;                 /* svcackm offset */
  75         int mb_cd1400[MAGMA_MAX_CD1400];/* cd1400 chip register offsets */
  76         int mb_ncd1190;                 /* number of CD1190 chips */
  77         int mb_cd1190[MAGMA_MAX_CD1190];/* cd1190 chip register offsets */
  78 };
  79
  80 /*
  81  * cd1400 chip data
  82  */
  83 struct cd1400 {
  84         volatile u_char *cd_reg;        /* chip registers */
  85         int cd_chiprev;                 /* chip revision */
  86         int cd_clock;                   /* clock speed in MHz */
  87         int cd_parmode;                 /* parallel mode operation */
  88 };
  89
  90 /*
  91  * cd1190 chip data
  92  */
  93 struct cd1190 {
  94         volatile u_char *cd_reg;        /* chip registers */
  95         int cd_chiprev;                 /* chip revision */
  96 };
  97
  98 /* software state for each card */
  99 struct magma_softc {
 100         struct device   ms_dev;         /* required. must be first in softc */
 101         struct evcnt    ms_intrcnt;     /* statistics */
 102
 103         /* cd1400 chip info */
 104         int     ms_ncd1400;
 105         struct cd1400 ms_cd1400[MAGMA_MAX_CD1400];
 106         volatile u_char *ms_svcackr;    /* CD1400 service acknowledge receive */
 107         volatile u_char *ms_svcackt;    /* CD1400 service acknowledge transmit */
 108         volatile u_char *ms_svcackm;    /* CD1400 service acknowledge modem */
 109
 110         /* cd1190 chip info */
 111         int ms_ncd1190;
 112         struct cd1190 ms_cd1190[MAGMA_MAX_CD1190];
 113
 114         struct magma_board_info *ms_board;      /* what am I? */
 115
 116         struct mtty_softc *ms_mtty;
 117         struct mbpp_softc *ms_mbpp;
 118
 119         /* softintr(9) cookie */
 120         void    *ms_sicookie;
 121 };
 122
 123 #define MTTY_RBUF_SIZE          (2 * 512)
 124 #define MTTY_RX_FIFO_THRESHOLD  6
 125 #define MTTY_RX_DTR_THRESHOLD   9
 126
 127 struct mtty_port {
 128         struct cd1400 *mp_cd1400;       /* ptr to chip */
 129         int mp_channel;                 /* and channel */
 130         struct tty *mp_tty;
 131
 132         int mp_openflags;       /* default tty flags */
 133         int mp_flags;           /* port flags */
 134         int mp_carrier;         /* state of carrier */
 135
 136         u_char *mp_rbuf;        /* ring buffer start */
 137         u_char *mp_rend;        /* ring buffer end */
 138         u_char *mp_rget;        /* ring buffer read pointer */
 139         u_char *mp_rput;        /* ring buffer write pointer */
 140
 141         u_char *mp_txp;         /* transmit character pointer */
 142         int mp_txc;             /* transmit character counter */
 143 };
 144
 145 #define MTTYF_CARRIER_CHANGED   (1<<0)
 146 #define MTTYF_SET_BREAK         (1<<1)
 147 #define MTTYF_CLR_BREAK         (1<<2)
 148 #define MTTYF_DONE              (1<<3)
 149 #define MTTYF_STOP              (1<<4)
 150 #define MTTYF_RING_OVERFLOW     (1<<5)
 151
 152 struct mtty_softc {
 153         struct device ms_dev;           /* device info */
 154         int ms_nports;                  /* tty ports */
 155         struct mtty_port ms_port[MAGMA_MAX_TTY];
 156 };
 157
 158 #define MBPP_RX_FIFO_THRESHOLD  25
 159
 160 struct mbpp_port {
 161         struct cd1400 *mp_cd1400;       /* for LC2+1Sp card */
 162         struct cd1190 *mp_cd1190;       /* all the others   */
 163
 164         struct callout mp_timeout_ch;
 165         struct callout mp_start_ch;
 166
 167         int     mp_flags;
 168
 169         struct mbpp_param mp_param;
 170 #define mp_burst        mp_param.bp_burst
 171 #define mp_timeout      mp_param.bp_timeout
 172 #define mp_delay        mp_param.bp_delay
 173
 174         u_char  *mp_ptr;                /* pointer to I/O data */
 175         int     mp_cnt;                 /* count of I/O chars */
 176 };
 177
 178 #define MBPPF_OPEN      (1<<0)
 179 #define MBPPF_TIMEOUT   (1<<1)
 180 #define MBPPF_UIO       (1<<2)
 181 #define MBPPF_DELAY     (1<<3)
 182 #define MBPPF_WAKEUP    (1<<4)
 183
 184 struct mbpp_softc {
 185         struct device ms_dev;           /* device info */
 186         int ms_nports;                  /* parallel ports */
 187         struct mbpp_port ms_port[MAGMA_MAX_BPP];
 188 };
 189
 190 /*
 191  * useful macros
 192  */
 193 #define SET(t, f)       ((t) |= (f))
 194 #define CLR(t, f)       ((t) &= ~(f))
 195 #define ISSET(t, f)     ((t) & (f))
 196
 197 /* internal function prototypes */
 198
 199 int cd1400_compute_baud(speed_t, int, int *, int *);
 200 __inline void cd1400_write_ccr(struct cd1400 *, u_char);
 201 __inline u_char cd1400_read_reg(struct cd1400 *, int);
 202 __inline void cd1400_write_reg(struct cd1400 *, int, u_char);
 203 void cd1400_enable_transmitter(struct cd1400 *, int);
 204
 205 int magma_match(device_t, cfdata_t, void *);
 206 void magma_attach(device_t, device_t, void *);
 207 int magma_hard(void *);
 208 void magma_soft(void *);
 209
 210 int mtty_match(device_t, cfdata_t, void *);
 211 void mtty_attach(device_t, device_t, void *);
 212 int mtty_modem_control(struct mtty_port *, int, int);
 213 int mtty_param(struct tty *, struct termios *);
 214 void mtty_start(struct tty *);
 215
 216 int mbpp_match(device_t, cfdata_t, void *);
 217 void mbpp_attach(device_t, device_t, void *);
 218 void mbpp_timeout(void *);
 219 void mbpp_start(void *);
 220 int mbpp_send(struct mbpp_port *, void *, int);
 221 int mbpp_recv(struct mbpp_port *, void *, int);
 222 int mbpp_hztoms(int);
 223 int mbpp_mstohz(int);