6b13f685e
 김민수
BSP 최초 추가
|
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
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
/* $Id: isurf.c,v 1.12.2.4 2004/01/13 21:46:03 keil Exp $
*
* low level stuff for Siemens I-Surf/I-Talk cards
*
* 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/init.h>
#include "hisax.h"
#include "isac.h"
#include "isar.h"
#include "isdnl1.h"
#include <linux/isapnp.h>
static const char *ISurf_revision = "$Revision: 1.12.2.4 $";
#define byteout(addr, val) outb(val, addr)
#define bytein(addr) inb(addr)
#define ISURF_ISAR_RESET 1
#define ISURF_ISAC_RESET 2
#define ISURF_ISAR_EA 4
#define ISURF_ARCOFI_RESET 8
#define ISURF_RESET (ISURF_ISAR_RESET | ISURF_ISAC_RESET | ISURF_ARCOFI_RESET)
#define ISURF_ISAR_OFFSET 0
#define ISURF_ISAC_OFFSET 0x100
#define ISURF_IOMEM_SIZE 0x400
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return (readb(cs->hw.isurf.isac + offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writeb(value, cs->hw.isurf.isac + offset); mb();
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
register int i;
for (i = 0; i < size; i++)
data[i] = readb(cs->hw.isurf.isac);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
register int i;
for (i = 0; i < size; i++) {
writeb(data[i], cs->hw.isurf.isac); mb();
}
}
/* ISAR access routines
* mode = 0 access with IRQ on
* mode = 1 access with IRQ off
* mode = 2 access with IRQ off and using last offset
*/
static u_char
ReadISAR(struct IsdnCardState *cs, int mode, u_char offset)
{
return (readb(cs->hw.isurf.isar + offset));
}
static void
WriteISAR(struct IsdnCardState *cs, int mode, u_char offset, u_char value)
{
writeb(value, cs->hw.isurf.isar + offset); mb();
}
static irqreturn_t
isurf_interrupt(int intno, void *dev_id)
{
struct IsdnCardState *cs = dev_id;
u_char val;
int cnt = 5;
u_long flags;
spin_lock_irqsave(&cs->lock, flags);
val = readb(cs->hw.isurf.isar + ISAR_IRQBIT);
Start_ISAR:
if (val & ISAR_IRQSTA)
isar_int_main(cs);
val = readb(cs->hw.isurf.isac + ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
val = readb(cs->hw.isurf.isar + ISAR_IRQBIT);
if ((val & ISAR_IRQSTA) && --cnt) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "ISAR IntStat after IntRoutine");
goto Start_ISAR;
}
val = readb(cs->hw.isurf.isac + ISAC_ISTA);
if (val && --cnt) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
if (!cnt)
printk(KERN_WARNING "ISurf IRQ LOOP
");
writeb(0, cs->hw.isurf.isar + ISAR_IRQBIT); mb();
writeb(0xFF, cs->hw.isurf.isac + ISAC_MASK); mb();
writeb(0, cs->hw.isurf.isac + ISAC_MASK); mb();
writeb(ISAR_IRQMSK, cs->hw.isurf.isar + ISAR_IRQBIT); mb();
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
release_io_isurf(struct IsdnCardState *cs)
{
release_region(cs->hw.isurf.reset, 1);
iounmap(cs->hw.isurf.isar);
release_mem_region(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE);
}
static void
reset_isurf(struct IsdnCardState *cs, u_char chips)
{
printk(KERN_INFO "ISurf: resetting card
");
byteout(cs->hw.isurf.reset, chips); /* Reset On */
mdelay(10);
byteout(cs->hw.isurf.reset, ISURF_ISAR_EA); /* Reset Off */
mdelay(10);
}
static int
ISurf_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
reset_isurf(cs, ISURF_RESET);
spin_unlock_irqrestore(&cs->lock, flags);
return (0);
case CARD_RELEASE:
release_io_isurf(cs);
return (0);
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
reset_isurf(cs, ISURF_RESET);
clear_pending_isac_ints(cs);
writeb(0, cs->hw.isurf.isar + ISAR_IRQBIT); mb();
initisac(cs);
initisar(cs);
/* Reenable ISAC IRQ */
cs->writeisac(cs, ISAC_MASK, 0);
/* RESET Receiver and Transmitter */
cs->writeisac(cs, ISAC_CMDR, 0x41);
spin_unlock_irqrestore(&cs->lock, flags);
return (0);
case CARD_TEST:
return (0);
}
return (0);
}
static int
isurf_auxcmd(struct IsdnCardState *cs, isdn_ctrl *ic) {
int ret;
u_long flags;
if ((ic->command == ISDN_CMD_IOCTL) && (ic->arg == 9)) {
ret = isar_auxcmd(cs, ic);
spin_lock_irqsave(&cs->lock, flags);
if (!ret) {
reset_isurf(cs, ISURF_ISAR_EA | ISURF_ISAC_RESET |
ISURF_ARCOFI_RESET);
initisac(cs);
cs->writeisac(cs, ISAC_MASK, 0);
cs->writeisac(cs, ISAC_CMDR, 0x41);
}
spin_unlock_irqrestore(&cs->lock, flags);
return (ret);
}
return (isar_auxcmd(cs, ic));
}
#ifdef __ISAPNP__
static struct pnp_card *pnp_c = NULL;
#endif
int setup_isurf(struct IsdnCard *card)
{
int ver;
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, ISurf_revision);
printk(KERN_INFO "HiSax: ISurf driver Rev. %s
", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_ISURF)
return (0);
if (card->para[1] && card->para[2]) {
cs->hw.isurf.reset = card->para[1];
cs->hw.isurf.phymem = card->para[2];
cs->irq = card->para[0];
} else {
#ifdef __ISAPNP__
if (isapnp_present()) {
struct pnp_dev *pnp_d = NULL;
int err;
cs->subtyp = 0;
if ((pnp_c = pnp_find_card(
ISAPNP_VENDOR('S', 'I', 'E'),
ISAPNP_FUNCTION(0x0010), pnp_c))) {
if (!(pnp_d = pnp_find_dev(pnp_c,
ISAPNP_VENDOR('S', 'I', 'E'),
ISAPNP_FUNCTION(0x0010), pnp_d))) {
printk(KERN_ERR "ISurfPnP: PnP error card found, no device
");
return (0);
}
pnp_disable_dev(pnp_d);
err = pnp_activate_dev(pnp_d);
if (err < 0) {
pr_warn("%s: pnp_activate_dev ret=%d
",
__func__, err);
return 0;
}
cs->hw.isurf.reset = pnp_port_start(pnp_d, 0);
cs->hw.isurf.phymem = pnp_mem_start(pnp_d, 1);
cs->irq = pnp_irq(pnp_d, 0);
if (!cs->irq || !cs->hw.isurf.reset || !cs->hw.isurf.phymem) {
printk(KERN_ERR "ISurfPnP:some resources are missing %d/%x/%lx
",
cs->irq, cs->hw.isurf.reset, cs->hw.isurf.phymem);
pnp_disable_dev(pnp_d);
return (0);
}
} else {
printk(KERN_INFO "ISurfPnP: no ISAPnP card found
");
return (0);
}
} else {
printk(KERN_INFO "ISurfPnP: no ISAPnP bus found
");
return (0);
}
#else
printk(KERN_WARNING "HiSax: Siemens I-Surf port/mem not set
");
return (0);
#endif
}
if (!request_region(cs->hw.isurf.reset, 1, "isurf isdn")) {
printk(KERN_WARNING
"HiSax: Siemens I-Surf config port %x already in use
",
cs->hw.isurf.reset);
return (0);
}
if (!request_region(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE, "isurf iomem")) {
printk(KERN_WARNING "HiSax: Siemens I-Surf memory region "
"%lx-%lx already in use
",
cs->hw.isurf.phymem,
cs->hw.isurf.phymem + ISURF_IOMEM_SIZE);
release_region(cs->hw.isurf.reset, 1);
return (0);
}
cs->hw.isurf.isar = ioremap(cs->hw.isurf.phymem, ISURF_IOMEM_SIZE);
cs->hw.isurf.isac = cs->hw.isurf.isar + ISURF_ISAC_OFFSET;
printk(KERN_INFO
"ISurf: defined at 0x%x 0x%lx IRQ %d
",
cs->hw.isurf.reset,
cs->hw.isurf.phymem,
cs->irq);
setup_isac(cs);
cs->cardmsg = &ISurf_card_msg;
cs->irq_func = &isurf_interrupt;
cs->auxcmd = &isurf_auxcmd;
cs->readisac = &ReadISAC;
cs->writeisac = &WriteISAC;
cs->readisacfifo = &ReadISACfifo;
cs->writeisacfifo = &WriteISACfifo;
cs->bcs[0].hw.isar.reg = &cs->hw.isurf.isar_r;
cs->bcs[1].hw.isar.reg = &cs->hw.isurf.isar_r;
test_and_set_bit(HW_ISAR, &cs->HW_Flags);
ISACVersion(cs, "ISurf:");
cs->BC_Read_Reg = &ReadISAR;
cs->BC_Write_Reg = &WriteISAR;
cs->BC_Send_Data = &isar_fill_fifo;
ver = ISARVersion(cs, "ISurf:");
if (ver < 0) {
printk(KERN_WARNING
"ISurf: wrong ISAR version (ret = %d)
", ver);
release_io_isurf(cs);
return (0);
}
return (1);
}
|