include/linux/mISDNhw.h

   1 /*
   2  *
   3  * Author       Karsten Keil <kkeil@novell.com>
   4  *
   5  *   Basic declarations for the mISDN HW channels
   6  *
   7  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  */
  19
  20 #ifndef MISDNHW_H
  21 #define MISDNHW_H
  22 #include <linux/mISDNif.h>
  23 #include <linux/timer.h>
  24
  25 /*
  26  * HW DEBUG 0xHHHHGGGG
  27  * H - hardware driver specific bits
  28  * G - for all drivers
  29  */
  30
  31 #define DEBUG_HW                0x00000001
  32 #define DEBUG_HW_OPEN           0x00000002
  33 #define DEBUG_HW_DCHANNEL       0x00000100
  34 #define DEBUG_HW_DFIFO          0x00000200
  35 #define DEBUG_HW_BCHANNEL       0x00001000
  36 #define DEBUG_HW_BFIFO          0x00002000
  37
  38 #define MAX_DFRAME_LEN_L1       300
  39 #define MAX_MON_FRAME           32
  40 #define MAX_LOG_SPACE           2048
  41 #define MISDN_COPY_SIZE         32
  42
  43 /* channel->Flags bit field */
  44 #define FLG_TX_BUSY             0       /* tx_buf in use */
  45 #define FLG_TX_NEXT             1       /* next_skb in use */
  46 #define FLG_L1_BUSY             2       /* L1 is permanent busy */
  47 #define FLG_L2_ACTIVATED        3       /* activated from L2 */
  48 #define FLG_OPEN                5       /* channel is in use */
  49 #define FLG_ACTIVE              6       /* channel is activated */
  50 #define FLG_BUSY_TIMER          7
  51 /* channel type */
  52 #define FLG_DCHANNEL            8       /* channel is D-channel */
  53 #define FLG_BCHANNEL            9       /* channel is B-channel */
  54 #define FLG_ECHANNEL            10      /* channel is E-channel */
  55 #define FLG_TRANSPARENT         12      /* channel use transparent data */
  56 #define FLG_HDLC                13      /* channel use hdlc data */
  57 #define FLG_L2DATA              14      /* channel use L2 DATA primitivs */
  58 #define FLG_ORIGIN              15      /* channel is on origin site */
  59 /* channel specific stuff */
  60 #define FLG_FILLEMPTY           16      /* fill fifo on first frame (empty) */
  61 /* arcofi specific */
  62 #define FLG_ARCOFI_TIMER        17
  63 #define FLG_ARCOFI_ERROR        18
  64 /* isar specific */
  65 #define FLG_INITIALIZED         17
  66 #define FLG_DLEETX              18
  67 #define FLG_LASTDLE             19
  68 #define FLG_FIRST               20
  69 #define FLG_LASTDATA            21
  70 #define FLG_NMD_DATA            22
  71 #define FLG_FTI_RUN             23
  72 #define FLG_LL_OK               24
  73 #define FLG_LL_CONN             25
  74 #define FLG_DTMFSEND            26
  75 #define FLG_TX_EMPTY            27
  76 /* stop sending received data upstream */
  77 #define FLG_RX_OFF              28
  78 /* workq events */
  79 #define FLG_RECVQUEUE           30
  80 #define FLG_PHCHANGE            31
  81
  82 #define schedule_event(s, ev)   do { \
  83                                         test_and_set_bit(ev, &((s)->Flags)); \
  84                                         schedule_work(&((s)->workq)); \
  85                                 } while (0)
  86
  87 struct dchannel {
  88         struct mISDNdevice      dev;
  89         u_long                  Flags;
  90         struct work_struct      workq;
  91         void                    (*phfunc) (struct dchannel *);
  92         u_int                   state;
  93         void                    *l1;
  94         void                    *hw;
  95         int                     slot;   /* multiport card channel slot */
  96         struct timer_list       timer;
  97         /* receive data */
  98         struct sk_buff          *rx_skb;
  99         int                     maxlen;
 100         /* send data */
 101         struct sk_buff_head     squeue;
 102         struct sk_buff_head     rqueue;
 103         struct sk_buff          *tx_skb;
 104         int                     tx_idx;
 105         int                     debug;
 106         /* statistics */
 107         int                     err_crc;
 108         int                     err_tx;
 109         int                     err_rx;
 110 };
 111
 112 typedef int     (dchannel_l1callback)(struct dchannel *, u_int);
 113 extern int      create_l1(struct dchannel *, dchannel_l1callback *);
 114
 115 /* private L1 commands */
 116 #define INFO0           0x8002
 117 #define INFO1           0x8102
 118 #define INFO2           0x8202
 119 #define INFO3_P8        0x8302
 120 #define INFO3_P10       0x8402
 121 #define INFO4_P8        0x8502
 122 #define INFO4_P10       0x8602
 123 #define LOSTFRAMING     0x8702
 124 #define ANYSIGNAL       0x8802
 125 #define HW_POWERDOWN    0x8902
 126 #define HW_RESET_REQ    0x8a02
 127 #define HW_POWERUP_REQ  0x8b02
 128 #define HW_DEACT_REQ    0x8c02
 129 #define HW_ACTIVATE_REQ 0x8e02
 130 #define HW_D_NOBLOCKED  0x8f02
 131 #define HW_RESET_IND    0x9002
 132 #define HW_POWERUP_IND  0x9102
 133 #define HW_DEACT_IND    0x9202
 134 #define HW_ACTIVATE_IND 0x9302
 135 #define HW_DEACT_CNF    0x9402
 136 #define HW_TESTLOOP     0x9502
 137 #define HW_TESTRX_RAW   0x9602
 138 #define HW_TESTRX_HDLC  0x9702
 139 #define HW_TESTRX_OFF   0x9802
 140 #define HW_TIMER3_IND   0x9902
 141 #define HW_TIMER3_VALUE 0x9a00
 142 #define HW_TIMER3_VMASK 0x00FF
 143
 144 struct layer1;
 145 extern int      l1_event(struct layer1 *, u_int);
 146
 147 #define MISDN_BCH_FILL_SIZE     4
 148
 149 struct bchannel {
 150         struct mISDNchannel     ch;
 151         int                     nr;
 152         u_long                  Flags;
 153         struct work_struct      workq;
 154         u_int                   state;
 155         void                    *hw;
 156         int                     slot;   /* multiport card channel slot */
 157         struct timer_list       timer;
 158         /* receive data */
 159         u8                      fill[MISDN_BCH_FILL_SIZE];
 160         struct sk_buff          *rx_skb;
 161         unsigned short          maxlen;
 162         unsigned short          init_maxlen; /* initial value */
 163         unsigned short          next_maxlen; /* pending value */
 164         unsigned short          minlen; /* for transparent data */
 165         unsigned short          init_minlen; /* initial value */
 166         unsigned short          next_minlen; /* pending value */
 167         /* send data */
 168         struct sk_buff          *next_skb;
 169         struct sk_buff          *tx_skb;
 170         struct sk_buff_head     rqueue;
 171         int                     rcount;
 172         int                     tx_idx;
 173         int                     debug;
 174         /* statistics */
 175         int                     err_crc;
 176         int                     err_tx;
 177         int                     err_rx;
 178         int                     dropcnt;
 179 };
 180
 181 extern int      mISDN_initdchannel(struct dchannel *, int, void *);
 182 extern int      mISDN_initbchannel(struct bchannel *, unsigned short,
 183                                    unsigned short);
 184 extern int      mISDN_freedchannel(struct dchannel *);
 185 extern void     mISDN_clear_bchannel(struct bchannel *);
 186 extern void     mISDN_freebchannel(struct bchannel *);
 187 extern int      mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
 188 extern void     queue_ch_frame(struct mISDNchannel *, u_int,
 189                         int, struct sk_buff *);
 190 extern int      dchannel_senddata(struct dchannel *, struct sk_buff *);
 191 extern int      bchannel_senddata(struct bchannel *, struct sk_buff *);
 192 extern int      bchannel_get_rxbuf(struct bchannel *, int);
 193 extern void     recv_Dchannel(struct dchannel *);
 194 extern void     recv_Echannel(struct dchannel *, struct dchannel *);
 195 extern void     recv_Bchannel(struct bchannel *, unsigned int, bool);
 196 extern void     recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
 197 extern void     recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
 198 extern int      get_next_bframe(struct bchannel *);
 199 extern int      get_next_dframe(struct dchannel *);
 200
 201 #endif