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
|
/* $Id: mic.c,v 1.12.2.4 2004/01/13 23:48:39 keil Exp $
*
* low level stuff for mic cards
*
* Author Stephan von Krawczynski
* Copyright by Stephan von Krawczynski <skraw@ithnet.com>
*
* 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 *mic_revision = "$Revision: 1.12.2.4 $";
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
#define MIC_ISAC 2
#define MIC_HSCX 1
#define MIC_ADR 7
/* CARD_ADR (Write) */
#define MIC_RESET 0x3 /* same as DOS driver */
static inline u_char
readreg(unsigned int ale, unsigned int adr, u_char off)
{
register u_char ret;
byteout(ale, off);
ret = bytein(adr);
return (ret);
}
static inline void
readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
{
byteout(ale, off);
insb(adr, data, size);
}
static inline void
writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
{
byteout(ale, off);
byteout(adr, data);
}
static inline void
writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
{
byteout(ale, off);
outsb(adr, data, size);
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return (readreg(cs->hw.mic.adr, cs->hw.mic.isac, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.mic.adr, cs->hw.mic.isac, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
readfifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
writefifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return (readreg(cs->hw.mic.adr,
cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0)));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writereg(cs->hw.mic.adr,
cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0), value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readreg(cs->hw.mic.adr, \
cs->hw.mic.hscx, reg + (nr ? 0x40 : 0))
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.mic.adr, \
cs->hw.mic.hscx, reg + (nr ? 0x40 : 0), data)
#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.mic.adr, \
cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.mic.adr, \
cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t
mic_interrupt(int intno, void *dev_id)
{
struct IsdnCardState *cs = dev_id;
u_char val;
u_long flags;
spin_lock_irqsave(&cs->lock, flags);
val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40);
Start_HSCX:
if (val)
hscx_int_main(cs, val);
val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40);
if (val) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "HSCX IntStat after IntRoutine");
goto Start_HSCX;
}
val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA);
if (val) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0xFF);
writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0xFF);
writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0x0);
writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0x0);
writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
release_io_mic(struct IsdnCardState *cs)
{
int bytecnt = 8;
if (cs->hw.mic.cfg_reg)
release_region(cs->hw.mic.cfg_reg, bytecnt);
}
static int
mic_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
return(0);
case CARD_RELEASE:
release_io_mic(cs);
return(0);
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
inithscx(cs); /* /RTSA := ISAC RST */
inithscxisac(cs, 3);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_TEST:
return(0);
}
return(0);
}
int __devinit
setup_mic(struct IsdnCard *card)
{
int bytecnt;
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, mic_revision);
printk(KERN_INFO "HiSax: mic driver Rev. %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_MIC)
return (0);
bytecnt = 8;
cs->hw.mic.cfg_reg = card->para[1];
cs->irq = card->para[0];
cs->hw.mic.adr = cs->hw.mic.cfg_reg + MIC_ADR;
cs->hw.mic.isac = cs->hw.mic.cfg_reg + MIC_ISAC;
cs->hw.mic.hscx = cs->hw.mic.cfg_reg + MIC_HSCX;
if (!request_region(cs->hw.mic.cfg_reg, bytecnt, "mic isdn")) {
printk(KERN_WARNING
"HiSax: ith mic config port %x-%x already in use\n",
cs->hw.mic.cfg_reg,
cs->hw.mic.cfg_reg + bytecnt);
return (0);
}
printk(KERN_INFO "mic: defined at 0x%x IRQ %d\n",
cs->hw.mic.cfg_reg, cs->irq);
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 = &mic_card_msg;
cs->irq_func = &mic_interrupt;
ISACVersion(cs, "mic:");
if (HscxVersion(cs, "mic:")) {
printk(KERN_WARNING
"mic: wrong HSCX versions check IO address\n");
release_io_mic(cs);
return (0);
}
return (1);
}
|
