aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/isdn/pcbit/pcbit.h
blob: d76fffc88b8229fcb2e9e4529961cf261e90daa4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
/*
 * PCBIT-D device driver definitions
 *
 * Copyright (C) 1996 Universidade de Lisboa
 * 
 * Written by Pedro Roque Marques (roque@di.fc.ul.pt)
 *
 * This software may be used and distributed according to the terms of 
 * the GNU General Public License, incorporated herein by reference.
 */

#ifndef PCBIT_H
#define PCBIT_H

#include <linux/workqueue.h>

#define MAX_PCBIT_CARDS 4


#define BLOCK_TIMER

#ifdef __KERNEL__

struct pcbit_chan {
	unsigned short id;
	unsigned short callref;                   /* Call Reference */
	unsigned char  proto;                     /* layer2protocol  */
	unsigned char  queued;                    /* unacked data messages */
	unsigned char  layer2link;                /* used in TData */
	unsigned char  snum;                      /* used in TData */
	unsigned short s_refnum;
	unsigned short r_refnum;
	unsigned short fsm_state;
	struct timer_list fsm_timer;
#ifdef  BLOCK_TIMER
	struct timer_list block_timer;
#endif
};

struct msn_entry {
	char *msn;
	struct msn_entry * next;
};

struct pcbit_dev {
	/* board */

	volatile unsigned char __iomem *sh_mem;		/* RDP address	*/
	unsigned long ph_mem;
	unsigned int irq;
	unsigned int id;
	unsigned int interrupt;			/* set during interrupt 
						   processing */
	spinlock_t lock;
	/* isdn4linux */

	struct msn_entry * msn_list;		/* ISDN address list */
	
	isdn_if * dev_if;
	
	ushort ll_hdrlen;
	ushort hl_hdrlen;

	/* link layer */
	unsigned char l2_state;

	struct frame_buf *read_queue;
	struct frame_buf *read_frame;
	struct frame_buf *write_queue;

	/* Protocol start */
	wait_queue_head_t set_running_wq;
	struct timer_list set_running_timer;

	struct timer_list error_recover_timer;

	struct work_struct qdelivery;

	u_char w_busy;
	u_char r_busy;

	volatile unsigned char __iomem *readptr;
	volatile unsigned char __iomem *writeptr;

	ushort loadptr;

	unsigned short fsize[8];		/* sent layer2 frames size */

	unsigned char send_seq;
	unsigned char rcv_seq;
	unsigned char unack_seq;
  
	unsigned short free;

	/* channels */

	struct pcbit_chan *b1;
	struct pcbit_chan *b2;  
};

#define STATS_TIMER (10*HZ)
#define ERRTIME     (HZ/10)

/* MRU */
#define MAXBUFSIZE  1534
#define MRU   MAXBUFSIZE

#define STATBUF_LEN 2048
/*
 * 
 */

#endif /* __KERNEL__ */

/* isdn_ctrl only allows a long sized argument */

struct pcbit_ioctl {
	union {
		struct byte_op {
			ushort addr;
			ushort value;
		} rdp_byte;
		unsigned long l2_status;
	} info;
};



#define PCBIT_IOCTL_GETSTAT  0x01    /* layer2 status */
#define PCBIT_IOCTL_LWMODE   0x02    /* linear write mode */
#define PCBIT_IOCTL_STRLOAD  0x03    /* start load mode */
#define PCBIT_IOCTL_ENDLOAD  0x04    /* end load mode */
#define PCBIT_IOCTL_SETBYTE  0x05    /* set byte */
#define PCBIT_IOCTL_GETBYTE  0x06    /* get byte */
#define PCBIT_IOCTL_RUNNING  0x07    /* set protocol running */
#define PCBIT_IOCTL_WATCH188 0x08    /* set watch 188 */
#define PCBIT_IOCTL_PING188  0x09    /* ping 188 */
#define PCBIT_IOCTL_FWMODE   0x0A    /* firmware write mode */
#define PCBIT_IOCTL_STOP     0x0B    /* stop protocol */
#define PCBIT_IOCTL_APION    0x0C    /* issue API_ON  */

#ifndef __KERNEL__

#define PCBIT_GETSTAT  (PCBIT_IOCTL_GETSTAT  + IIOCDRVCTL)
#define PCBIT_LWMODE   (PCBIT_IOCTL_LWMODE   + IIOCDRVCTL)
#define PCBIT_STRLOAD  (PCBIT_IOCTL_STRLOAD  + IIOCDRVCTL)
#define PCBIT_ENDLOAD  (PCBIT_IOCTL_ENDLOAD  + IIOCDRVCTL)
#define PCBIT_SETBYTE  (PCBIT_IOCTL_SETBYTE  + IIOCDRVCTL)
#define PCBIT_GETBYTE  (PCBIT_IOCTL_GETBYTE  + IIOCDRVCTL)
#define PCBIT_RUNNING  (PCBIT_IOCTL_RUNNING  + IIOCDRVCTL)
#define PCBIT_WATCH188 (PCBIT_IOCTL_WATCH188 + IIOCDRVCTL)
#define PCBIT_PING188  (PCBIT_IOCTL_PING188  + IIOCDRVCTL)
#define PCBIT_FWMODE   (PCBIT_IOCTL_FWMODE   + IIOCDRVCTL)
#define PCBIT_STOP     (PCBIT_IOCTL_STOP     + IIOCDRVCTL)
#define PCBIT_APION    (PCBIT_IOCTL_APION    + IIOCDRVCTL)

#define MAXSUPERLINE 3000

#endif

#define L2_DOWN     0
#define L2_LOADING  1
#define L2_LWMODE   2
#define L2_FWMODE   3
#define L2_STARTING 4
#define L2_RUNNING  5
#define L2_ERROR    6

void pcbit_deliver(struct work_struct *work);
int pcbit_init_dev(int board, int mem_base, int irq);
void pcbit_terminate(int board);
void pcbit_l3_receive(struct pcbit_dev * dev, ulong msg, struct sk_buff * skb,
		      ushort hdr_len, ushort refnum);
void pcbit_state_change(struct pcbit_dev * dev, struct pcbit_chan * chan,
			unsigned short i, unsigned short ev, unsigned short f);

#endif