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
78struct 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
103typedef int (dchannel_l1callback)(struct dchannel *, u_int);
104extern 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
135struct layer1;
136extern int l1_event(struct layer1 *, u_int);
137
138#define MISDN_BCH_FILL_SIZE 4
139
140struct 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
172extern int mISDN_initdchannel(struct dchannel *, int, void *);
173extern int mISDN_initbchannel(struct bchannel *, unsigned short,
174 unsigned short);
175extern int mISDN_freedchannel(struct dchannel *);
176extern void mISDN_clear_bchannel(struct bchannel *);
177extern void mISDN_freebchannel(struct bchannel *);
178extern int mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
179extern void queue_ch_frame(struct mISDNchannel *, u_int,
180 int, struct sk_buff *);
181extern int dchannel_senddata(struct dchannel *, struct sk_buff *);
182extern int bchannel_senddata(struct bchannel *, struct sk_buff *);
183extern int bchannel_get_rxbuf(struct bchannel *, int);
184extern void recv_Dchannel(struct dchannel *);
185extern void recv_Echannel(struct dchannel *, struct dchannel *);
186extern void recv_Bchannel(struct bchannel *, unsigned int, bool);
187extern void recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
188extern void recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
189extern int get_next_bframe(struct bchannel *);
190extern int get_next_dframe(struct dchannel *);
191
192#endif
193

source code of linux/include/linux/mISDNhw.h