LXR linux/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
  87struct 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
 112typedef int     (dchannel_l1callback)(struct dchannel *, u_int);
 113extern 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
 144struct layer1;
 145extern int      l1_event(struct layer1 *, u_int);
 146
 147#define MISDN_BCH_FILL_SIZE     4
 148
 149struct 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
 181extern int      mISDN_initdchannel(struct dchannel *, int, void *);
 182extern int      mISDN_initbchannel(struct bchannel *, unsigned short,
 183                                   unsigned short);
 184extern int      mISDN_freedchannel(struct dchannel *);
 185extern void     mISDN_clear_bchannel(struct bchannel *);
 186extern void     mISDN_freebchannel(struct bchannel *);
 187extern int      mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
 188extern void     queue_ch_frame(struct mISDNchannel *, u_int,
 189                        int, struct sk_buff *);
 190extern int      dchannel_senddata(struct dchannel *, struct sk_buff *);
 191extern int      bchannel_senddata(struct bchannel *, struct sk_buff *);
 192extern int      bchannel_get_rxbuf(struct bchannel *, int);
 193extern void     recv_Dchannel(struct dchannel *);
 194extern void     recv_Echannel(struct dchannel *, struct dchannel *);
 195extern void     recv_Bchannel(struct bchannel *, unsigned int, bool);
 196extern void     recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
 197extern void     recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
 198extern int      get_next_bframe(struct bchannel *);
 199extern int      get_next_dframe(struct dchannel *);
 200
 201#endif
 202