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1da177e4 LT |
1 | /* $Id: arcofi.c,v 1.14.2.3 2004/01/13 14:31:24 keil Exp $ |
2 | * | |
3 | * Ansteuerung ARCOFI 2165 | |
4 | * | |
5 | * Author Karsten Keil | |
6 | * Copyright by Karsten Keil <keil@isdn4linux.de> | |
7 | * | |
8 | * This software may be used and distributed according to the terms | |
9 | * of the GNU General Public License, incorporated herein by reference. | |
10 | * | |
11 | */ | |
12 | ||
13 | #include "hisax.h" | |
14 | #include "isdnl1.h" | |
15 | #include "isac.h" | |
16 | #include "arcofi.h" | |
17 | ||
18 | #define ARCOFI_TIMER_VALUE 20 | |
19 | ||
20 | static void | |
21 | add_arcofi_timer(struct IsdnCardState *cs) { | |
22 | if (test_and_set_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { | |
23 | del_timer(&cs->dc.isac.arcofitimer); | |
24 | } | |
25 | init_timer(&cs->dc.isac.arcofitimer); | |
26 | cs->dc.isac.arcofitimer.expires = jiffies + ((ARCOFI_TIMER_VALUE * HZ)/1000); | |
27 | add_timer(&cs->dc.isac.arcofitimer); | |
28 | } | |
29 | ||
30 | static void | |
31 | send_arcofi(struct IsdnCardState *cs) { | |
32 | u_char val; | |
33 | ||
34 | add_arcofi_timer(cs); | |
35 | cs->dc.isac.mon_txp = 0; | |
36 | cs->dc.isac.mon_txc = cs->dc.isac.arcofi_list->len; | |
37 | memcpy(cs->dc.isac.mon_tx, cs->dc.isac.arcofi_list->msg, cs->dc.isac.mon_txc); | |
38 | switch(cs->dc.isac.arcofi_bc) { | |
39 | case 0: break; | |
40 | case 1: cs->dc.isac.mon_tx[1] |= 0x40; | |
41 | break; | |
42 | default: break; | |
43 | } | |
44 | cs->dc.isac.mocr &= 0x0f; | |
45 | cs->dc.isac.mocr |= 0xa0; | |
46 | cs->writeisac(cs, ISAC_MOCR, cs->dc.isac.mocr); | |
47 | val = cs->readisac(cs, ISAC_MOSR); | |
48 | cs->writeisac(cs, ISAC_MOX1, cs->dc.isac.mon_tx[cs->dc.isac.mon_txp++]); | |
49 | cs->dc.isac.mocr |= 0x10; | |
50 | cs->writeisac(cs, ISAC_MOCR, cs->dc.isac.mocr); | |
51 | } | |
52 | ||
53 | int | |
54 | arcofi_fsm(struct IsdnCardState *cs, int event, void *data) { | |
55 | if (cs->debug & L1_DEB_MONITOR) { | |
56 | debugl1(cs, "arcofi state %d event %d", cs->dc.isac.arcofi_state, event); | |
57 | } | |
58 | if (event == ARCOFI_TIMEOUT) { | |
59 | cs->dc.isac.arcofi_state = ARCOFI_NOP; | |
60 | test_and_set_bit(FLG_ARCOFI_ERROR, &cs->HW_Flags); | |
61 | wake_up(&cs->dc.isac.arcofi_wait); | |
62 | return(1); | |
63 | } | |
64 | switch (cs->dc.isac.arcofi_state) { | |
65 | case ARCOFI_NOP: | |
66 | if (event == ARCOFI_START) { | |
67 | cs->dc.isac.arcofi_list = data; | |
68 | cs->dc.isac.arcofi_state = ARCOFI_TRANSMIT; | |
69 | send_arcofi(cs); | |
70 | } | |
71 | break; | |
72 | case ARCOFI_TRANSMIT: | |
73 | if (event == ARCOFI_TX_END) { | |
74 | if (cs->dc.isac.arcofi_list->receive) { | |
75 | add_arcofi_timer(cs); | |
76 | cs->dc.isac.arcofi_state = ARCOFI_RECEIVE; | |
77 | } else { | |
78 | if (cs->dc.isac.arcofi_list->next) { | |
79 | cs->dc.isac.arcofi_list = | |
80 | cs->dc.isac.arcofi_list->next; | |
81 | send_arcofi(cs); | |
82 | } else { | |
83 | if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { | |
84 | del_timer(&cs->dc.isac.arcofitimer); | |
85 | } | |
86 | cs->dc.isac.arcofi_state = ARCOFI_NOP; | |
87 | wake_up(&cs->dc.isac.arcofi_wait); | |
88 | } | |
89 | } | |
90 | } | |
91 | break; | |
92 | case ARCOFI_RECEIVE: | |
93 | if (event == ARCOFI_RX_END) { | |
94 | if (cs->dc.isac.arcofi_list->next) { | |
95 | cs->dc.isac.arcofi_list = | |
96 | cs->dc.isac.arcofi_list->next; | |
97 | cs->dc.isac.arcofi_state = ARCOFI_TRANSMIT; | |
98 | send_arcofi(cs); | |
99 | } else { | |
100 | if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { | |
101 | del_timer(&cs->dc.isac.arcofitimer); | |
102 | } | |
103 | cs->dc.isac.arcofi_state = ARCOFI_NOP; | |
104 | wake_up(&cs->dc.isac.arcofi_wait); | |
105 | } | |
106 | } | |
107 | break; | |
108 | default: | |
109 | debugl1(cs, "Arcofi unknown state %x", cs->dc.isac.arcofi_state); | |
110 | return(2); | |
111 | } | |
112 | return(0); | |
113 | } | |
114 | ||
115 | static void | |
116 | arcofi_timer(struct IsdnCardState *cs) { | |
117 | arcofi_fsm(cs, ARCOFI_TIMEOUT, NULL); | |
118 | } | |
119 | ||
120 | void | |
121 | clear_arcofi(struct IsdnCardState *cs) { | |
122 | if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { | |
123 | del_timer(&cs->dc.isac.arcofitimer); | |
124 | } | |
125 | } | |
126 | ||
127 | void | |
128 | init_arcofi(struct IsdnCardState *cs) { | |
129 | cs->dc.isac.arcofitimer.function = (void *) arcofi_timer; | |
130 | cs->dc.isac.arcofitimer.data = (long) cs; | |
131 | init_timer(&cs->dc.isac.arcofitimer); | |
132 | init_waitqueue_head(&cs->dc.isac.arcofi_wait); | |
133 | test_and_set_bit(HW_ARCOFI, &cs->HW_Flags); | |
134 | } |