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mISDNhw.h
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1 /*
2  *
3  * Author Karsten Keil <[email protected]>
4  *
5  * Basic declarations for the mISDN HW channels
6  *
7  * Copyright 2008 by Karsten Keil <[email protected]>
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
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