root/include/linux/mISDNhw.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Author       Karsten Keil <kkeil@novell.com>
   5  *
   6  *   Basic declarations for the mISDN HW channels
   7  *
   8  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
   9  */
  10 
  11 #ifndef MISDNHW_H
  12 #define MISDNHW_H
  13 #include <linux/mISDNif.h>
  14 #include <linux/timer.h>
  15 
  16 /*
  17  * HW DEBUG 0xHHHHGGGG
  18  * H - hardware driver specific bits
  19  * G - for all drivers
  20  */
  21 
  22 #define DEBUG_HW                0x00000001
  23 #define DEBUG_HW_OPEN           0x00000002
  24 #define DEBUG_HW_DCHANNEL       0x00000100
  25 #define DEBUG_HW_DFIFO          0x00000200
  26 #define DEBUG_HW_BCHANNEL       0x00001000
  27 #define DEBUG_HW_BFIFO          0x00002000
  28 
  29 #define MAX_DFRAME_LEN_L1       300
  30 #define MAX_MON_FRAME           32
  31 #define MAX_LOG_SPACE           2048
  32 #define MISDN_COPY_SIZE         32
  33 
  34 /* channel->Flags bit field */
  35 #define FLG_TX_BUSY             0       /* tx_buf in use */
  36 #define FLG_TX_NEXT             1       /* next_skb in use */
  37 #define FLG_L1_BUSY             2       /* L1 is permanent busy */
  38 #define FLG_L2_ACTIVATED        3       /* activated from L2 */
  39 #define FLG_OPEN                5       /* channel is in use */
  40 #define FLG_ACTIVE              6       /* channel is activated */
  41 #define FLG_BUSY_TIMER          7
  42 /* channel type */
  43 #define FLG_DCHANNEL            8       /* channel is D-channel */
  44 #define FLG_BCHANNEL            9       /* channel is B-channel */
  45 #define FLG_ECHANNEL            10      /* channel is E-channel */
  46 #define FLG_TRANSPARENT         12      /* channel use transparent data */
  47 #define FLG_HDLC                13      /* channel use hdlc data */
  48 #define FLG_L2DATA              14      /* channel use L2 DATA primitivs */
  49 #define FLG_ORIGIN              15      /* channel is on origin site */
  50 /* channel specific stuff */
  51 #define FLG_FILLEMPTY           16      /* fill fifo on first frame (empty) */
  52 /* arcofi specific */
  53 #define FLG_ARCOFI_TIMER        17
  54 #define FLG_ARCOFI_ERROR        18
  55 /* isar specific */
  56 #define FLG_INITIALIZED         17
  57 #define FLG_DLEETX              18
  58 #define FLG_LASTDLE             19
  59 #define FLG_FIRST               20
  60 #define FLG_LASTDATA            21
  61 #define FLG_NMD_DATA            22
  62 #define FLG_FTI_RUN             23
  63 #define FLG_LL_OK               24
  64 #define FLG_LL_CONN             25
  65 #define FLG_DTMFSEND            26
  66 #define FLG_TX_EMPTY            27
  67 /* stop sending received data upstream */
  68 #define FLG_RX_OFF              28
  69 /* workq events */
  70 #define FLG_RECVQUEUE           30
  71 #define FLG_PHCHANGE            31
  72 
  73 #define schedule_event(s, ev)   do { \
  74                                         test_and_set_bit(ev, &((s)->Flags)); \
  75                                         schedule_work(&((s)->workq)); \
  76                                 } while (0)
  77 
  78 struct dchannel {
  79         struct mISDNdevice      dev;
  80         u_long                  Flags;
  81         struct work_struct      workq;
  82         void                    (*phfunc) (struct dchannel *);
  83         u_int                   state;
  84         void                    *l1;
  85         void                    *hw;
  86         int                     slot;   /* multiport card channel slot */
  87         struct timer_list       timer;
  88         /* receive data */
  89         struct sk_buff          *rx_skb;
  90         int                     maxlen;
  91         /* send data */
  92         struct sk_buff_head     squeue;
  93         struct sk_buff_head     rqueue;
  94         struct sk_buff          *tx_skb;
  95         int                     tx_idx;
  96         int                     debug;
  97         /* statistics */
  98         int                     err_crc;
  99         int                     err_tx;
 100         int                     err_rx;
 101 };
 102 
 103 typedef int     (dchannel_l1callback)(struct dchannel *, u_int);
 104 extern int      create_l1(struct dchannel *, dchannel_l1callback *);
 105 
 106 /* private L1 commands */
 107 #define INFO0           0x8002
 108 #define INFO1           0x8102
 109 #define INFO2           0x8202
 110 #define INFO3_P8        0x8302
 111 #define INFO3_P10       0x8402
 112 #define INFO4_P8        0x8502
 113 #define INFO4_P10       0x8602
 114 #define LOSTFRAMING     0x8702
 115 #define ANYSIGNAL       0x8802
 116 #define HW_POWERDOWN    0x8902
 117 #define HW_RESET_REQ    0x8a02
 118 #define HW_POWERUP_REQ  0x8b02
 119 #define HW_DEACT_REQ    0x8c02
 120 #define HW_ACTIVATE_REQ 0x8e02
 121 #define HW_D_NOBLOCKED  0x8f02
 122 #define HW_RESET_IND    0x9002
 123 #define HW_POWERUP_IND  0x9102
 124 #define HW_DEACT_IND    0x9202
 125 #define HW_ACTIVATE_IND 0x9302
 126 #define HW_DEACT_CNF    0x9402
 127 #define HW_TESTLOOP     0x9502
 128 #define HW_TESTRX_RAW   0x9602
 129 #define HW_TESTRX_HDLC  0x9702
 130 #define HW_TESTRX_OFF   0x9802
 131 #define HW_TIMER3_IND   0x9902
 132 #define HW_TIMER3_VALUE 0x9a00
 133 #define HW_TIMER3_VMASK 0x00FF
 134 
 135 struct layer1;
 136 extern int      l1_event(struct layer1 *, u_int);
 137 
 138 #define MISDN_BCH_FILL_SIZE     4
 139 
 140 struct bchannel {
 141         struct mISDNchannel     ch;
 142         int                     nr;
 143         u_long                  Flags;
 144         struct work_struct      workq;
 145         u_int                   state;
 146         void                    *hw;
 147         int                     slot;   /* multiport card channel slot */
 148         struct timer_list       timer;
 149         /* receive data */
 150         u8                      fill[MISDN_BCH_FILL_SIZE];
 151         struct sk_buff          *rx_skb;
 152         unsigned short          maxlen;
 153         unsigned short          init_maxlen; /* initial value */
 154         unsigned short          next_maxlen; /* pending value */
 155         unsigned short          minlen; /* for transparent data */
 156         unsigned short          init_minlen; /* initial value */
 157         unsigned short          next_minlen; /* pending value */
 158         /* send data */
 159         struct sk_buff          *next_skb;
 160         struct sk_buff          *tx_skb;
 161         struct sk_buff_head     rqueue;
 162         int                     rcount;
 163         int                     tx_idx;
 164         int                     debug;
 165         /* statistics */
 166         int                     err_crc;
 167         int                     err_tx;
 168         int                     err_rx;
 169         int                     dropcnt;
 170 };
 171 
 172 extern int      mISDN_initdchannel(struct dchannel *, int, void *);
 173 extern int      mISDN_initbchannel(struct bchannel *, unsigned short,
 174                                    unsigned short);
 175 extern int      mISDN_freedchannel(struct dchannel *);
 176 extern void     mISDN_clear_bchannel(struct bchannel *);
 177 extern void     mISDN_freebchannel(struct bchannel *);
 178 extern int      mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
 179 extern void     queue_ch_frame(struct mISDNchannel *, u_int,
 180                         int, struct sk_buff *);
 181 extern int      dchannel_senddata(struct dchannel *, struct sk_buff *);
 182 extern int      bchannel_senddata(struct bchannel *, struct sk_buff *);
 183 extern int      bchannel_get_rxbuf(struct bchannel *, int);
 184 extern void     recv_Dchannel(struct dchannel *);
 185 extern void     recv_Echannel(struct dchannel *, struct dchannel *);
 186 extern void     recv_Bchannel(struct bchannel *, unsigned int, bool);
 187 extern void     recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
 188 extern void     recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
 189 extern int      get_next_bframe(struct bchannel *);
 190 extern int      get_next_dframe(struct dchannel *);
 191 
 192 #endif