1 /* $Id: ix1_micro.c,v 2.12.2.4 2004/01/13 23:48:39 keil Exp $
2 *
3 * low level stuff for ITK ix1-micro Rev.2 isdn cards
4 * derived from the original file teles3.c from Karsten Keil
5 *
6 * Author Klaus-Peter Nischke
7 * Copyright by Klaus-Peter Nischke, ITK AG
8 * <klaus@nischke.do.eunet.de>
9 * by Karsten Keil <keil@isdn4linux.de>
10 *
11 * This software may be used and distributed according to the terms
12 * of the GNU General Public License, incorporated herein by reference.
13 *
14 * Klaus-Peter Nischke
15 * Deusener Str. 287
16 * 44369 Dortmund
17 * Germany
18 */
19
20 #include <linux/init.h>
21 #include <linux/isapnp.h>
22 #include "hisax.h"
23 #include "isac.h"
24 #include "hscx.h"
25 #include "isdnl1.h"
26
27 extern const char *CardType[];
28 static const char *ix1_revision = "$Revision: 2.12.2.4 $";
29
30 #define byteout(addr,val) outb(val,addr)
31 #define bytein(addr) inb(addr)
32
33 #define SPECIAL_PORT_OFFSET 3
34
35 #define ISAC_COMMAND_OFFSET 2
36 #define ISAC_DATA_OFFSET 0
37 #define HSCX_COMMAND_OFFSET 2
38 #define HSCX_DATA_OFFSET 1
39
40 #define TIMEOUT 50
41
42 static inline u_char
43 readreg(unsigned int ale, unsigned int adr, u_char off)
44 {
45 register u_char ret;
46
47 byteout(ale, off);
48 ret = bytein(adr);
49 return (ret);
50 }
51
52 static inline void
53 readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
54 {
55 byteout(ale, off);
56 insb(adr, data, size);
57 }
58
59
60 static inline void
61 writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
62 {
63 byteout(ale, off);
64 byteout(adr, data);
65 }
66
67 static inline void
68 writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
69 {
70 byteout(ale, off);
71 outsb(adr, data, size);
72 }
73
74 /* Interface functions */
75
76 static u_char
77 ReadISAC(struct IsdnCardState *cs, u_char offset)
78 {
79 return (readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset));
80 }
81
82 static void
83 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
84 {
85 writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset, value);
86 }
87
88 static void
89 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
90 {
91 readfifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size);
92 }
93
94 static void
95 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
96 {
97 writefifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size);
98 }
99
100 static u_char
101 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
102 {
103 return (readreg(cs->hw.ix1.hscx_ale,
104 cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0)));
105 }
106
107 static void
108 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
109 {
110 writereg(cs->hw.ix1.hscx_ale,
111 cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0), value);
112 }
113
114 #define READHSCX(cs, nr, reg) readreg(cs->hw.ix1.hscx_ale, \
115 cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0))
116 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.ix1.hscx_ale, \
117 cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0), data)
118
119 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.ix1.hscx_ale, \
120 cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt)
121
122 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.ix1.hscx_ale, \
123 cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt)
124
125 #include "hscx_irq.c"
126
127 static irqreturn_t
128 ix1micro_interrupt(int intno, void *dev_id)
129 {
130 struct IsdnCardState *cs = dev_id;
131 u_char val;
132 u_long flags;
133
134 spin_lock_irqsave(&cs->lock, flags);
135 val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40);
136 Start_HSCX:
137 if (val)
138 hscx_int_main(cs, val);
139 val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA);
140 Start_ISAC:
141 if (val)
142 isac_interrupt(cs, val);
143 val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40);
144 if (val) {
145 if (cs->debug & L1_DEB_HSCX)
146 debugl1(cs, "HSCX IntStat after IntRoutine");
147 goto Start_HSCX;
148 }
149 val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA);
150 if (val) {
151 if (cs->debug & L1_DEB_ISAC)
152 debugl1(cs, "ISAC IntStat after IntRoutine");
153 goto Start_ISAC;
154 }
155 writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0xFF);
156 writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0xFF);
157 writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0xFF);
158 writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0);
159 writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0);
160 writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0);
161 spin_unlock_irqrestore(&cs->lock, flags);
162 return IRQ_HANDLED;
163 }
164
165 static void
166 release_io_ix1micro(struct IsdnCardState *cs)
167 {
168 if (cs->hw.ix1.cfg_reg)
169 release_region(cs->hw.ix1.cfg_reg, 4);
170 }
171
172 static void
173 ix1_reset(struct IsdnCardState *cs)
174 {
175 int cnt;
176
177 /* reset isac */
178 cnt = 3 * (HZ / 10) + 1;
179 while (cnt--) {
180 byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 1);
181 HZDELAY(1); /* wait >=10 ms */
182 }
183 byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 0);
184 }
185
186 static int
187 ix1_card_msg(struct IsdnCardState *cs, int mt, void *arg)
188 {
189 u_long flags;
190
191 switch (mt) {
192 case CARD_RESET:
193 spin_lock_irqsave(&cs->lock, flags);
194 ix1_reset(cs);
195 spin_unlock_irqrestore(&cs->lock, flags);
196 return(0);
197 case CARD_RELEASE:
198 release_io_ix1micro(cs);
199 return(0);
200 case CARD_INIT:
201 spin_lock_irqsave(&cs->lock, flags);
202 ix1_reset(cs);
203 inithscxisac(cs, 3);
204 spin_unlock_irqrestore(&cs->lock, flags);
205 return(0);
206 case CARD_TEST:
207 return(0);
208 }
209 return(0);
210 }
211
212 #ifdef __ISAPNP__
213 static struct isapnp_device_id itk_ids[] __devinitdata = {
214 { ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25),
215 ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25),
216 (unsigned long) "ITK micro 2" },
217 { ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29),
218 ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29),
219 (unsigned long) "ITK micro 2." },
220 { 0, }
221 };
222
223 static struct isapnp_device_id *ipid __devinitdata = &itk_ids[0];
224 static struct pnp_card *pnp_c __devinitdata = NULL;
225 #endif
226
227
228 int __devinit
229 setup_ix1micro(struct IsdnCard *card)
230 {
231 struct IsdnCardState *cs = card->cs;
232 char tmp[64];
233
234 strcpy(tmp, ix1_revision);
235 printk(KERN_INFO "HiSax: ITK IX1 driver Rev. %s\n", HiSax_getrev(tmp));
236 if (cs->typ != ISDN_CTYPE_IX1MICROR2)
237 return (0);
238
239 #ifdef __ISAPNP__
240 if (!card->para[1] && isapnp_present()) {
241 struct pnp_dev *pnp_d;
242 while(ipid->card_vendor) {
243 if ((pnp_c = pnp_find_card(ipid->card_vendor,
244 ipid->card_device, pnp_c))) {
245 pnp_d = NULL;
246 if ((pnp_d = pnp_find_dev(pnp_c,
247 ipid->vendor, ipid->function, pnp_d))) {
248 int err;
249
250 printk(KERN_INFO "HiSax: %s detected\n",
251 (char *)ipid->driver_data);
252 pnp_disable_dev(pnp_d);
253 err = pnp_activate_dev(pnp_d);
254 if (err<0) {
255 printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
256 __FUNCTION__, err);
257 return(0);
258 }
259 card->para[1] = pnp_port_start(pnp_d, 0);
260 card->para[0] = pnp_irq(pnp_d, 0);
261 if (!card->para[0] || !card->para[1]) {
262 printk(KERN_ERR "ITK PnP:some resources are missing %ld/%lx\n",
263 card->para[0], card->para[1]);
264 pnp_disable_dev(pnp_d);
265 return(0);
266 }
267 break;
268 } else {
269 printk(KERN_ERR "ITK PnP: PnP error card found, no device\n");
270 }
271 }
272 ipid++;
273 pnp_c = NULL;
274 }
275 if (!ipid->card_vendor) {
276 printk(KERN_INFO "ITK PnP: no ISAPnP card found\n");
277 return(0);
278 }
279 }
280 #endif
281 /* IO-Ports */
282 cs->hw.ix1.isac_ale = card->para[1] + ISAC_COMMAND_OFFSET;
283 cs->hw.ix1.hscx_ale = card->para[1] + HSCX_COMMAND_OFFSET;
284 cs->hw.ix1.isac = card->para[1] + ISAC_DATA_OFFSET;
285 cs->hw.ix1.hscx = card->para[1] + HSCX_DATA_OFFSET;
286 cs->hw.ix1.cfg_reg = card->para[1];
287 cs->irq = card->para[0];
288 if (cs->hw.ix1.cfg_reg) {
289 if (!request_region(cs->hw.ix1.cfg_reg, 4, "ix1micro cfg")) {
290 printk(KERN_WARNING
291 "HiSax: %s config port %x-%x already in use\n",
292 CardType[card->typ],
293 cs->hw.ix1.cfg_reg,
294 cs->hw.ix1.cfg_reg + 4);
295 return (0);
296 }
297 }
298 printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n",
299 CardType[cs->typ], cs->irq, cs->hw.ix1.cfg_reg);
300 setup_isac(cs);
301 cs->readisac = &ReadISAC;
302 cs->writeisac = &WriteISAC;
303 cs->readisacfifo = &ReadISACfifo;
304 cs->writeisacfifo = &WriteISACfifo;
305 cs->BC_Read_Reg = &ReadHSCX;
306 cs->BC_Write_Reg = &WriteHSCX;
307 cs->BC_Send_Data = &hscx_fill_fifo;
308 cs->cardmsg = &ix1_card_msg;
309 cs->irq_func = &ix1micro_interrupt;
310 ISACVersion(cs, "ix1-Micro:");
311 if (HscxVersion(cs, "ix1-Micro:")) {
312 printk(KERN_WARNING
313 "ix1-Micro: wrong HSCX versions check IO address\n");
314 release_io_ix1micro(cs);
315 return (0);
316 }
317 return (1);
318 }
319
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