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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
/* $Id: s0box.c,v 2.6.2.4 2004/01/13 23:48:39 keil Exp $
*
* low level stuff for Creatix S0BOX
*
* Author Enrik Berkhan
* Copyright by Enrik Berkhan <enrik@starfleet.inka.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
static const char *s0box_revision = "$Revision: 2.6.2.4 $";
static inline void
writereg(unsigned int padr, signed int addr, u_char off, u_char val) {
outb_p(0x1c, padr + 2);
outb_p(0x14, padr + 2);
outb_p((addr + off) & 0x7f, padr);
outb_p(0x16, padr + 2);
outb_p(val, padr);
outb_p(0x17, padr + 2);
outb_p(0x14, padr + 2);
outb_p(0x1c, padr + 2);
}
static u_char nibtab[] = { 1, 9, 5, 0xd, 3, 0xb, 7, 0xf,
0, 0, 0, 0, 0, 0, 0, 0,
0, 8, 4, 0xc, 2, 0xa, 6, 0xe };
static inline u_char
readreg(unsigned int padr, signed int addr, u_char off) {
register u_char n1, n2;
outb_p(0x1c, padr + 2);
outb_p(0x14, padr + 2);
outb_p((addr + off) | 0x80, padr);
outb_p(0x16, padr + 2);
outb_p(0x17, padr + 2);
n1 = (inb_p(padr + 1) >> 3) & 0x17;
outb_p(0x16, padr + 2);
n2 = (inb_p(padr + 1) >> 3) & 0x17;
outb_p(0x14, padr + 2);
outb_p(0x1c, padr + 2);
return nibtab[n1] | (nibtab[n2] << 4);
}
static inline void
read_fifo(unsigned int padr, signed int adr, u_char *data, int size)
{
int i;
register u_char n1, n2;
outb_p(0x1c, padr + 2);
outb_p(0x14, padr + 2);
outb_p(adr | 0x80, padr);
outb_p(0x16, padr + 2);
for (i = 0; i < size; i++) {
outb_p(0x17, padr + 2);
n1 = (inb_p(padr + 1) >> 3) & 0x17;
outb_p(0x16, padr + 2);
n2 = (inb_p(padr + 1) >> 3) & 0x17;
*(data++) = nibtab[n1] | (nibtab[n2] << 4);
}
outb_p(0x14, padr + 2);
outb_p(0x1c, padr + 2);
return;
}
static inline void
write_fifo(unsigned int padr, signed int adr, u_char *data, int size)
{
int i;
outb_p(0x1c, padr + 2);
outb_p(0x14, padr + 2);
outb_p(adr & 0x7f, padr);
for (i = 0; i < size; i++) {
outb_p(0x16, padr + 2);
outb_p(*(data++), padr);
outb_p(0x17, padr + 2);
}
outb_p(0x14, padr + 2);
outb_p(0x1c, padr + 2);
return;
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset, value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg)
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t
s0box_interrupt(int intno, void *dev_id)
{
#define MAXCOUNT 5
struct IsdnCardState *cs = dev_id;
u_char val;
u_long flags;
int count = 0;
spin_lock_irqsave(&cs->lock, flags);
val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
Start_HSCX:
if (val)
hscx_int_main(cs, val);
val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
count++;
val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
if (val && count < MAXCOUNT) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "HSCX IntStat after IntRoutine");
goto Start_HSCX;
}
val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
if (val && count < MAXCOUNT) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
if (count >= MAXCOUNT)
printk(KERN_WARNING "S0Box: more than %d loops in s0box_interrupt\n", count);
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0x0);
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
release_io_s0box(struct IsdnCardState *cs)
{
release_region(cs->hw.teles3.cfg_reg, 8);
}
static int
S0Box_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
break;
case CARD_RELEASE:
release_io_s0box(cs);
break;
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
inithscxisac(cs, 3);
spin_unlock_irqrestore(&cs->lock, flags);
break;
case CARD_TEST:
break;
}
return (0);
}
int setup_s0box(struct IsdnCard *card)
{
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, s0box_revision);
printk(KERN_INFO "HiSax: S0Box IO driver Rev. %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_S0BOX)
return (0);
cs->hw.teles3.cfg_reg = card->para[1];
cs->hw.teles3.hscx[0] = -0x20;
cs->hw.teles3.hscx[1] = 0x0;
cs->hw.teles3.isac = 0x20;
cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
cs->irq = card->para[0];
if (!request_region(cs->hw.teles3.cfg_reg, 8, "S0Box parallel I/O")) {
printk(KERN_WARNING "HiSax: S0Box ports %x-%x already in use\n",
cs->hw.teles3.cfg_reg,
cs->hw.teles3.cfg_reg + 7);
return 0;
}
printk(KERN_INFO "HiSax: S0Box config irq:%d isac:0x%x cfg:0x%x\n",
cs->irq,
cs->hw.teles3.isac, cs->hw.teles3.cfg_reg);
printk(KERN_INFO "HiSax: hscx A:0x%x hscx B:0x%x\n",
cs->hw.teles3.hscx[0], cs->hw.teles3.hscx[1]);
setup_isac(cs);
cs->readisac = &ReadISAC;
cs->writeisac = &WriteISAC;
cs->readisacfifo = &ReadISACfifo;
cs->writeisacfifo = &WriteISACfifo;
cs->BC_Read_Reg = &ReadHSCX;
cs->BC_Write_Reg = &WriteHSCX;
cs->BC_Send_Data = &hscx_fill_fifo;
cs->cardmsg = &S0Box_card_msg;
cs->irq_func = &s0box_interrupt;
ISACVersion(cs, "S0Box:");
if (HscxVersion(cs, "S0Box:")) {
printk(KERN_WARNING
"S0Box: wrong HSCX versions check IO address\n");
release_io_s0box(cs);
return (0);
}
return (1);
}
|
