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Linux/include/linux/mISDNhw.h

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  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
202 

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