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