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
|
/* $Id: arcofi.c,v 1.14.2.3 2004/01/13 14:31:24 keil Exp $
*
* Ansteuerung ARCOFI 2165
*
* Author Karsten Keil
* Copyright by Karsten Keil <keil@isdn4linux.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#include <linux/sched.h>
#include "hisax.h"
#include "isdnl1.h"
#include "isac.h"
#include "arcofi.h"
#define ARCOFI_TIMER_VALUE 20
static void
add_arcofi_timer(struct IsdnCardState *cs) {
if (test_and_set_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) {
del_timer(&cs->dc.isac.arcofitimer);
}
init_timer(&cs->dc.isac.arcofitimer);
cs->dc.isac.arcofitimer.expires = jiffies + ((ARCOFI_TIMER_VALUE * HZ)/1000);
add_timer(&cs->dc.isac.arcofitimer);
}
static void
send_arcofi(struct IsdnCardState *cs) {
u_char val;
add_arcofi_timer(cs);
cs->dc.isac.mon_txp = 0;
cs->dc.isac.mon_txc = cs->dc.isac.arcofi_list->len;
memcpy(cs->dc.isac.mon_tx, cs->dc.isac.arcofi_list->msg, cs->dc.isac.mon_txc);
switch(cs->dc.isac.arcofi_bc) {
case 0: break;
case 1: cs->dc.isac.mon_tx[1] |= 0x40;
break;
default: break;
}
cs->dc.isac.mocr &= 0x0f;
cs->dc.isac.mocr |= 0xa0;
cs->writeisac(cs, ISAC_MOCR, cs->dc.isac.mocr);
val = cs->readisac(cs, ISAC_MOSR);
cs->writeisac(cs, ISAC_MOX1, cs->dc.isac.mon_tx[cs->dc.isac.mon_txp++]);
cs->dc.isac.mocr |= 0x10;
cs->writeisac(cs, ISAC_MOCR, cs->dc.isac.mocr);
}
int
arcofi_fsm(struct IsdnCardState *cs, int event, void *data) {
if (cs->debug & L1_DEB_MONITOR) {
debugl1(cs, "arcofi state %d event %d", cs->dc.isac.arcofi_state, event);
}
if (event == ARCOFI_TIMEOUT) {
cs->dc.isac.arcofi_state = ARCOFI_NOP;
test_and_set_bit(FLG_ARCOFI_ERROR, &cs->HW_Flags);
wake_up(&cs->dc.isac.arcofi_wait);
return(1);
}
switch (cs->dc.isac.arcofi_state) {
case ARCOFI_NOP:
if (event == ARCOFI_START) {
cs->dc.isac.arcofi_list = data;
cs->dc.isac.arcofi_state = ARCOFI_TRANSMIT;
send_arcofi(cs);
}
break;
case ARCOFI_TRANSMIT:
if (event == ARCOFI_TX_END) {
if (cs->dc.isac.arcofi_list->receive) {
add_arcofi_timer(cs);
cs->dc.isac.arcofi_state = ARCOFI_RECEIVE;
} else {
if (cs->dc.isac.arcofi_list->next) {
cs->dc.isac.arcofi_list =
cs->dc.isac.arcofi_list->next;
send_arcofi(cs);
} else {
if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) {
del_timer(&cs->dc.isac.arcofitimer);
}
cs->dc.isac.arcofi_state = ARCOFI_NOP;
wake_up(&cs->dc.isac.arcofi_wait);
}
}
}
break;
case ARCOFI_RECEIVE:
if (event == ARCOFI_RX_END) {
if (cs->dc.isac.arcofi_list->next) {
cs->dc.isac.arcofi_list =
cs->dc.isac.arcofi_list->next;
cs->dc.isac.arcofi_state = ARCOFI_TRANSMIT;
send_arcofi(cs);
} else {
if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) {
del_timer(&cs->dc.isac.arcofitimer);
}
cs->dc.isac.arcofi_state = ARCOFI_NOP;
wake_up(&cs->dc.isac.arcofi_wait);
}
}
break;
default:
debugl1(cs, "Arcofi unknown state %x", cs->dc.isac.arcofi_state);
return(2);
}
return(0);
}
static void
arcofi_timer(struct IsdnCardState *cs) {
arcofi_fsm(cs, ARCOFI_TIMEOUT, NULL);
}
void
clear_arcofi(struct IsdnCardState *cs) {
if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) {
del_timer(&cs->dc.isac.arcofitimer);
}
}
void
init_arcofi(struct IsdnCardState *cs) {
cs->dc.isac.arcofitimer.function = (void *) arcofi_timer;
cs->dc.isac.arcofitimer.data = (long) cs;
init_timer(&cs->dc.isac.arcofitimer);
init_waitqueue_head(&cs->dc.isac.arcofi_wait);
test_and_set_bit(HW_ARCOFI, &cs->HW_Flags);
}
|
