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1da177e4 LT |
1 | /* $Id: avm_pci.c,v 1.29.2.4 2004/02/11 13:21:32 keil Exp $ |
2 | * | |
3 | * low level stuff for AVM Fritz!PCI and ISA PnP isdn cards | |
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 | * Thanks to AVM, Berlin for information | |
12 | * | |
13 | */ | |
14 | ||
1da177e4 LT |
15 | #include <linux/init.h> |
16 | #include "hisax.h" | |
17 | #include "isac.h" | |
18 | #include "isdnl1.h" | |
19 | #include <linux/pci.h> | |
20 | #include <linux/isapnp.h> | |
21 | #include <linux/interrupt.h> | |
22 | ||
23 | extern const char *CardType[]; | |
24 | static const char *avm_pci_rev = "$Revision: 1.29.2.4 $"; | |
25 | ||
26 | #define AVM_FRITZ_PCI 1 | |
27 | #define AVM_FRITZ_PNP 2 | |
28 | ||
29 | #define HDLC_FIFO 0x0 | |
30 | #define HDLC_STATUS 0x4 | |
31 | ||
32 | #define AVM_HDLC_1 0x00 | |
33 | #define AVM_HDLC_2 0x01 | |
34 | #define AVM_ISAC_FIFO 0x02 | |
35 | #define AVM_ISAC_REG_LOW 0x04 | |
36 | #define AVM_ISAC_REG_HIGH 0x06 | |
37 | ||
38 | #define AVM_STATUS0_IRQ_ISAC 0x01 | |
39 | #define AVM_STATUS0_IRQ_HDLC 0x02 | |
40 | #define AVM_STATUS0_IRQ_TIMER 0x04 | |
41 | #define AVM_STATUS0_IRQ_MASK 0x07 | |
42 | ||
43 | #define AVM_STATUS0_RESET 0x01 | |
44 | #define AVM_STATUS0_DIS_TIMER 0x02 | |
45 | #define AVM_STATUS0_RES_TIMER 0x04 | |
46 | #define AVM_STATUS0_ENA_IRQ 0x08 | |
47 | #define AVM_STATUS0_TESTBIT 0x10 | |
48 | ||
49 | #define AVM_STATUS1_INT_SEL 0x0f | |
50 | #define AVM_STATUS1_ENA_IOM 0x80 | |
51 | ||
52 | #define HDLC_MODE_ITF_FLG 0x01 | |
53 | #define HDLC_MODE_TRANS 0x02 | |
54 | #define HDLC_MODE_CCR_7 0x04 | |
55 | #define HDLC_MODE_CCR_16 0x08 | |
56 | #define HDLC_MODE_TESTLOOP 0x80 | |
57 | ||
58 | #define HDLC_INT_XPR 0x80 | |
59 | #define HDLC_INT_XDU 0x40 | |
60 | #define HDLC_INT_RPR 0x20 | |
61 | #define HDLC_INT_MASK 0xE0 | |
62 | ||
63 | #define HDLC_STAT_RME 0x01 | |
64 | #define HDLC_STAT_RDO 0x10 | |
65 | #define HDLC_STAT_CRCVFRRAB 0x0E | |
66 | #define HDLC_STAT_CRCVFR 0x06 | |
67 | #define HDLC_STAT_RML_MASK 0x3f00 | |
68 | ||
69 | #define HDLC_CMD_XRS 0x80 | |
70 | #define HDLC_CMD_XME 0x01 | |
71 | #define HDLC_CMD_RRS 0x20 | |
72 | #define HDLC_CMD_XML_MASK 0x3f00 | |
73 | ||
74 | ||
75 | /* Interface functions */ | |
76 | ||
77 | static u_char | |
78 | ReadISAC(struct IsdnCardState *cs, u_char offset) | |
79 | { | |
80 | register u_char idx = (offset > 0x2f) ? AVM_ISAC_REG_HIGH : AVM_ISAC_REG_LOW; | |
81 | register u_char val; | |
82 | ||
83 | outb(idx, cs->hw.avm.cfg_reg + 4); | |
84 | val = inb(cs->hw.avm.isac + (offset & 0xf)); | |
85 | return (val); | |
86 | } | |
87 | ||
88 | static void | |
89 | WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) | |
90 | { | |
91 | register u_char idx = (offset > 0x2f) ? AVM_ISAC_REG_HIGH : AVM_ISAC_REG_LOW; | |
92 | ||
93 | outb(idx, cs->hw.avm.cfg_reg + 4); | |
94 | outb(value, cs->hw.avm.isac + (offset & 0xf)); | |
95 | } | |
96 | ||
97 | static void | |
98 | ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) | |
99 | { | |
100 | outb(AVM_ISAC_FIFO, cs->hw.avm.cfg_reg + 4); | |
101 | insb(cs->hw.avm.isac, data, size); | |
102 | } | |
103 | ||
104 | static void | |
105 | WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) | |
106 | { | |
107 | outb(AVM_ISAC_FIFO, cs->hw.avm.cfg_reg + 4); | |
108 | outsb(cs->hw.avm.isac, data, size); | |
109 | } | |
110 | ||
111 | static inline u_int | |
112 | ReadHDLCPCI(struct IsdnCardState *cs, int chan, u_char offset) | |
113 | { | |
114 | register u_int idx = chan ? AVM_HDLC_2 : AVM_HDLC_1; | |
115 | register u_int val; | |
116 | ||
117 | outl(idx, cs->hw.avm.cfg_reg + 4); | |
118 | val = inl(cs->hw.avm.isac + offset); | |
119 | return (val); | |
120 | } | |
121 | ||
122 | static inline void | |
123 | WriteHDLCPCI(struct IsdnCardState *cs, int chan, u_char offset, u_int value) | |
124 | { | |
125 | register u_int idx = chan ? AVM_HDLC_2 : AVM_HDLC_1; | |
126 | ||
127 | outl(idx, cs->hw.avm.cfg_reg + 4); | |
128 | outl(value, cs->hw.avm.isac + offset); | |
129 | } | |
130 | ||
131 | static inline u_char | |
132 | ReadHDLCPnP(struct IsdnCardState *cs, int chan, u_char offset) | |
133 | { | |
134 | register u_char idx = chan ? AVM_HDLC_2 : AVM_HDLC_1; | |
135 | register u_char val; | |
136 | ||
137 | outb(idx, cs->hw.avm.cfg_reg + 4); | |
138 | val = inb(cs->hw.avm.isac + offset); | |
139 | return (val); | |
140 | } | |
141 | ||
142 | static inline void | |
143 | WriteHDLCPnP(struct IsdnCardState *cs, int chan, u_char offset, u_char value) | |
144 | { | |
145 | register u_char idx = chan ? AVM_HDLC_2 : AVM_HDLC_1; | |
146 | ||
147 | outb(idx, cs->hw.avm.cfg_reg + 4); | |
148 | outb(value, cs->hw.avm.isac + offset); | |
149 | } | |
150 | ||
151 | static u_char | |
152 | ReadHDLC_s(struct IsdnCardState *cs, int chan, u_char offset) | |
153 | { | |
154 | return(0xff & ReadHDLCPCI(cs, chan, offset)); | |
155 | } | |
156 | ||
157 | static void | |
158 | WriteHDLC_s(struct IsdnCardState *cs, int chan, u_char offset, u_char value) | |
159 | { | |
160 | WriteHDLCPCI(cs, chan, offset, value); | |
161 | } | |
162 | ||
163 | static inline | |
164 | struct BCState *Sel_BCS(struct IsdnCardState *cs, int channel) | |
165 | { | |
166 | if (cs->bcs[0].mode && (cs->bcs[0].channel == channel)) | |
167 | return(&cs->bcs[0]); | |
168 | else if (cs->bcs[1].mode && (cs->bcs[1].channel == channel)) | |
169 | return(&cs->bcs[1]); | |
170 | else | |
171 | return(NULL); | |
172 | } | |
173 | ||
672c3fd9 | 174 | static void |
1da177e4 LT |
175 | write_ctrl(struct BCState *bcs, int which) { |
176 | ||
177 | if (bcs->cs->debug & L1_DEB_HSCX) | |
178 | debugl1(bcs->cs, "hdlc %c wr%x ctrl %x", | |
179 | 'A' + bcs->channel, which, bcs->hw.hdlc.ctrl.ctrl); | |
180 | if (bcs->cs->subtyp == AVM_FRITZ_PCI) { | |
181 | WriteHDLCPCI(bcs->cs, bcs->channel, HDLC_STATUS, bcs->hw.hdlc.ctrl.ctrl); | |
182 | } else { | |
183 | if (which & 4) | |
184 | WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS + 2, | |
185 | bcs->hw.hdlc.ctrl.sr.mode); | |
186 | if (which & 2) | |
187 | WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS + 1, | |
188 | bcs->hw.hdlc.ctrl.sr.xml); | |
189 | if (which & 1) | |
190 | WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS, | |
191 | bcs->hw.hdlc.ctrl.sr.cmd); | |
192 | } | |
193 | } | |
194 | ||
672c3fd9 | 195 | static void |
1da177e4 LT |
196 | modehdlc(struct BCState *bcs, int mode, int bc) |
197 | { | |
198 | struct IsdnCardState *cs = bcs->cs; | |
199 | int hdlc = bcs->channel; | |
200 | ||
201 | if (cs->debug & L1_DEB_HSCX) | |
202 | debugl1(cs, "hdlc %c mode %d --> %d ichan %d --> %d", | |
203 | 'A' + hdlc, bcs->mode, mode, hdlc, bc); | |
204 | bcs->hw.hdlc.ctrl.ctrl = 0; | |
205 | switch (mode) { | |
206 | case (-1): /* used for init */ | |
207 | bcs->mode = 1; | |
208 | bcs->channel = bc; | |
209 | bc = 0; | |
210 | case (L1_MODE_NULL): | |
211 | if (bcs->mode == L1_MODE_NULL) | |
212 | return; | |
213 | bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS; | |
214 | bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_TRANS; | |
215 | write_ctrl(bcs, 5); | |
216 | bcs->mode = L1_MODE_NULL; | |
217 | bcs->channel = bc; | |
218 | break; | |
219 | case (L1_MODE_TRANS): | |
220 | bcs->mode = mode; | |
221 | bcs->channel = bc; | |
222 | bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS; | |
223 | bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_TRANS; | |
224 | write_ctrl(bcs, 5); | |
225 | bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS; | |
226 | write_ctrl(bcs, 1); | |
227 | bcs->hw.hdlc.ctrl.sr.cmd = 0; | |
228 | schedule_event(bcs, B_XMTBUFREADY); | |
229 | break; | |
230 | case (L1_MODE_HDLC): | |
231 | bcs->mode = mode; | |
232 | bcs->channel = bc; | |
233 | bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS; | |
234 | bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_ITF_FLG; | |
235 | write_ctrl(bcs, 5); | |
236 | bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS; | |
237 | write_ctrl(bcs, 1); | |
238 | bcs->hw.hdlc.ctrl.sr.cmd = 0; | |
239 | schedule_event(bcs, B_XMTBUFREADY); | |
240 | break; | |
241 | } | |
242 | } | |
243 | ||
244 | static inline void | |
245 | hdlc_empty_fifo(struct BCState *bcs, int count) | |
246 | { | |
247 | register u_int *ptr; | |
248 | u_char *p; | |
249 | u_char idx = bcs->channel ? AVM_HDLC_2 : AVM_HDLC_1; | |
250 | int cnt=0; | |
251 | struct IsdnCardState *cs = bcs->cs; | |
252 | ||
253 | if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO)) | |
254 | debugl1(cs, "hdlc_empty_fifo %d", count); | |
255 | if (bcs->hw.hdlc.rcvidx + count > HSCX_BUFMAX) { | |
256 | if (cs->debug & L1_DEB_WARN) | |
257 | debugl1(cs, "hdlc_empty_fifo: incoming packet too large"); | |
258 | return; | |
259 | } | |
260 | p = bcs->hw.hdlc.rcvbuf + bcs->hw.hdlc.rcvidx; | |
261 | ptr = (u_int *)p; | |
262 | bcs->hw.hdlc.rcvidx += count; | |
263 | if (cs->subtyp == AVM_FRITZ_PCI) { | |
264 | outl(idx, cs->hw.avm.cfg_reg + 4); | |
265 | while (cnt < count) { | |
266 | #ifdef __powerpc__ | |
267 | #ifdef CONFIG_APUS | |
268 | *ptr++ = in_le32((unsigned *)(cs->hw.avm.isac +_IO_BASE)); | |
269 | #else | |
270 | *ptr++ = in_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE)); | |
271 | #endif /* CONFIG_APUS */ | |
272 | #else | |
273 | *ptr++ = inl(cs->hw.avm.isac); | |
274 | #endif /* __powerpc__ */ | |
275 | cnt += 4; | |
276 | } | |
277 | } else { | |
278 | outb(idx, cs->hw.avm.cfg_reg + 4); | |
279 | while (cnt < count) { | |
280 | *p++ = inb(cs->hw.avm.isac); | |
281 | cnt++; | |
282 | } | |
283 | } | |
284 | if (cs->debug & L1_DEB_HSCX_FIFO) { | |
285 | char *t = bcs->blog; | |
286 | ||
287 | if (cs->subtyp == AVM_FRITZ_PNP) | |
288 | p = (u_char *) ptr; | |
289 | t += sprintf(t, "hdlc_empty_fifo %c cnt %d", | |
290 | bcs->channel ? 'B' : 'A', count); | |
291 | QuickHex(t, p, count); | |
292 | debugl1(cs, bcs->blog); | |
293 | } | |
294 | } | |
295 | ||
296 | static inline void | |
297 | hdlc_fill_fifo(struct BCState *bcs) | |
298 | { | |
299 | struct IsdnCardState *cs = bcs->cs; | |
300 | int count, cnt =0; | |
301 | int fifo_size = 32; | |
302 | u_char *p; | |
303 | u_int *ptr; | |
304 | ||
305 | if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO)) | |
306 | debugl1(cs, "hdlc_fill_fifo"); | |
307 | if (!bcs->tx_skb) | |
308 | return; | |
309 | if (bcs->tx_skb->len <= 0) | |
310 | return; | |
311 | ||
312 | bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_XME; | |
313 | if (bcs->tx_skb->len > fifo_size) { | |
314 | count = fifo_size; | |
315 | } else { | |
316 | count = bcs->tx_skb->len; | |
317 | if (bcs->mode != L1_MODE_TRANS) | |
318 | bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_XME; | |
319 | } | |
320 | if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO)) | |
321 | debugl1(cs, "hdlc_fill_fifo %d/%ld", count, bcs->tx_skb->len); | |
322 | p = bcs->tx_skb->data; | |
323 | ptr = (u_int *)p; | |
324 | skb_pull(bcs->tx_skb, count); | |
325 | bcs->tx_cnt -= count; | |
326 | bcs->hw.hdlc.count += count; | |
327 | bcs->hw.hdlc.ctrl.sr.xml = ((count == fifo_size) ? 0 : count); | |
328 | write_ctrl(bcs, 3); /* sets the correct index too */ | |
329 | if (cs->subtyp == AVM_FRITZ_PCI) { | |
330 | while (cnt<count) { | |
331 | #ifdef __powerpc__ | |
332 | #ifdef CONFIG_APUS | |
333 | out_le32((unsigned *)(cs->hw.avm.isac +_IO_BASE), *ptr++); | |
334 | #else | |
335 | out_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE), *ptr++); | |
336 | #endif /* CONFIG_APUS */ | |
337 | #else | |
338 | outl(*ptr++, cs->hw.avm.isac); | |
339 | #endif /* __powerpc__ */ | |
340 | cnt += 4; | |
341 | } | |
342 | } else { | |
343 | while (cnt<count) { | |
344 | outb(*p++, cs->hw.avm.isac); | |
345 | cnt++; | |
346 | } | |
347 | } | |
348 | if (cs->debug & L1_DEB_HSCX_FIFO) { | |
349 | char *t = bcs->blog; | |
350 | ||
351 | if (cs->subtyp == AVM_FRITZ_PNP) | |
352 | p = (u_char *) ptr; | |
353 | t += sprintf(t, "hdlc_fill_fifo %c cnt %d", | |
354 | bcs->channel ? 'B' : 'A', count); | |
355 | QuickHex(t, p, count); | |
356 | debugl1(cs, bcs->blog); | |
357 | } | |
358 | } | |
359 | ||
858119e1 | 360 | static void |
1da177e4 LT |
361 | HDLC_irq(struct BCState *bcs, u_int stat) { |
362 | int len; | |
363 | struct sk_buff *skb; | |
364 | ||
365 | if (bcs->cs->debug & L1_DEB_HSCX) | |
366 | debugl1(bcs->cs, "ch%d stat %#x", bcs->channel, stat); | |
367 | if (stat & HDLC_INT_RPR) { | |
368 | if (stat & HDLC_STAT_RDO) { | |
369 | if (bcs->cs->debug & L1_DEB_HSCX) | |
370 | debugl1(bcs->cs, "RDO"); | |
371 | else | |
372 | debugl1(bcs->cs, "ch%d stat %#x", bcs->channel, stat); | |
373 | bcs->hw.hdlc.ctrl.sr.xml = 0; | |
374 | bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_RRS; | |
375 | write_ctrl(bcs, 1); | |
376 | bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_RRS; | |
377 | write_ctrl(bcs, 1); | |
378 | bcs->hw.hdlc.rcvidx = 0; | |
379 | } else { | |
380 | if (!(len = (stat & HDLC_STAT_RML_MASK)>>8)) | |
381 | len = 32; | |
382 | hdlc_empty_fifo(bcs, len); | |
383 | if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) { | |
384 | if (((stat & HDLC_STAT_CRCVFRRAB)==HDLC_STAT_CRCVFR) || | |
385 | (bcs->mode == L1_MODE_TRANS)) { | |
386 | if (!(skb = dev_alloc_skb(bcs->hw.hdlc.rcvidx))) | |
387 | printk(KERN_WARNING "HDLC: receive out of memory\n"); | |
388 | else { | |
389 | memcpy(skb_put(skb, bcs->hw.hdlc.rcvidx), | |
390 | bcs->hw.hdlc.rcvbuf, bcs->hw.hdlc.rcvidx); | |
391 | skb_queue_tail(&bcs->rqueue, skb); | |
392 | } | |
393 | bcs->hw.hdlc.rcvidx = 0; | |
394 | schedule_event(bcs, B_RCVBUFREADY); | |
395 | } else { | |
396 | if (bcs->cs->debug & L1_DEB_HSCX) | |
397 | debugl1(bcs->cs, "invalid frame"); | |
398 | else | |
399 | debugl1(bcs->cs, "ch%d invalid frame %#x", bcs->channel, stat); | |
400 | bcs->hw.hdlc.rcvidx = 0; | |
401 | } | |
402 | } | |
403 | } | |
404 | } | |
405 | if (stat & HDLC_INT_XDU) { | |
406 | /* Here we lost an TX interrupt, so | |
407 | * restart transmitting the whole frame. | |
408 | */ | |
409 | if (bcs->tx_skb) { | |
410 | skb_push(bcs->tx_skb, bcs->hw.hdlc.count); | |
411 | bcs->tx_cnt += bcs->hw.hdlc.count; | |
412 | bcs->hw.hdlc.count = 0; | |
413 | if (bcs->cs->debug & L1_DEB_WARN) | |
414 | debugl1(bcs->cs, "ch%d XDU", bcs->channel); | |
415 | } else if (bcs->cs->debug & L1_DEB_WARN) | |
416 | debugl1(bcs->cs, "ch%d XDU without skb", bcs->channel); | |
417 | bcs->hw.hdlc.ctrl.sr.xml = 0; | |
418 | bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_XRS; | |
419 | write_ctrl(bcs, 1); | |
420 | bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_XRS; | |
421 | write_ctrl(bcs, 1); | |
422 | hdlc_fill_fifo(bcs); | |
423 | } else if (stat & HDLC_INT_XPR) { | |
424 | if (bcs->tx_skb) { | |
425 | if (bcs->tx_skb->len) { | |
426 | hdlc_fill_fifo(bcs); | |
427 | return; | |
428 | } else { | |
429 | if (test_bit(FLG_LLI_L1WAKEUP,&bcs->st->lli.flag) && | |
430 | (PACKET_NOACK != bcs->tx_skb->pkt_type)) { | |
431 | u_long flags; | |
432 | spin_lock_irqsave(&bcs->aclock, flags); | |
433 | bcs->ackcnt += bcs->hw.hdlc.count; | |
434 | spin_unlock_irqrestore(&bcs->aclock, flags); | |
435 | schedule_event(bcs, B_ACKPENDING); | |
436 | } | |
437 | dev_kfree_skb_irq(bcs->tx_skb); | |
438 | bcs->hw.hdlc.count = 0; | |
439 | bcs->tx_skb = NULL; | |
440 | } | |
441 | } | |
442 | if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) { | |
443 | bcs->hw.hdlc.count = 0; | |
444 | test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); | |
445 | hdlc_fill_fifo(bcs); | |
446 | } else { | |
447 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
448 | schedule_event(bcs, B_XMTBUFREADY); | |
449 | } | |
450 | } | |
451 | } | |
452 | ||
672c3fd9 | 453 | static inline void |
1da177e4 LT |
454 | HDLC_irq_main(struct IsdnCardState *cs) |
455 | { | |
456 | u_int stat; | |
457 | struct BCState *bcs; | |
458 | ||
459 | if (cs->subtyp == AVM_FRITZ_PCI) { | |
460 | stat = ReadHDLCPCI(cs, 0, HDLC_STATUS); | |
461 | } else { | |
462 | stat = ReadHDLCPnP(cs, 0, HDLC_STATUS); | |
463 | if (stat & HDLC_INT_RPR) | |
464 | stat |= (ReadHDLCPnP(cs, 0, HDLC_STATUS+1))<<8; | |
465 | } | |
466 | if (stat & HDLC_INT_MASK) { | |
467 | if (!(bcs = Sel_BCS(cs, 0))) { | |
468 | if (cs->debug) | |
469 | debugl1(cs, "hdlc spurious channel 0 IRQ"); | |
470 | } else | |
471 | HDLC_irq(bcs, stat); | |
472 | } | |
473 | if (cs->subtyp == AVM_FRITZ_PCI) { | |
474 | stat = ReadHDLCPCI(cs, 1, HDLC_STATUS); | |
475 | } else { | |
476 | stat = ReadHDLCPnP(cs, 1, HDLC_STATUS); | |
477 | if (stat & HDLC_INT_RPR) | |
478 | stat |= (ReadHDLCPnP(cs, 1, HDLC_STATUS+1))<<8; | |
479 | } | |
480 | if (stat & HDLC_INT_MASK) { | |
481 | if (!(bcs = Sel_BCS(cs, 1))) { | |
482 | if (cs->debug) | |
483 | debugl1(cs, "hdlc spurious channel 1 IRQ"); | |
484 | } else | |
485 | HDLC_irq(bcs, stat); | |
486 | } | |
487 | } | |
488 | ||
672c3fd9 | 489 | static void |
1da177e4 LT |
490 | hdlc_l2l1(struct PStack *st, int pr, void *arg) |
491 | { | |
492 | struct BCState *bcs = st->l1.bcs; | |
493 | struct sk_buff *skb = arg; | |
494 | u_long flags; | |
495 | ||
496 | switch (pr) { | |
497 | case (PH_DATA | REQUEST): | |
498 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
499 | if (bcs->tx_skb) { | |
500 | skb_queue_tail(&bcs->squeue, skb); | |
501 | } else { | |
502 | bcs->tx_skb = skb; | |
503 | test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); | |
504 | bcs->hw.hdlc.count = 0; | |
505 | bcs->cs->BC_Send_Data(bcs); | |
506 | } | |
507 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
508 | break; | |
509 | case (PH_PULL | INDICATION): | |
510 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
511 | if (bcs->tx_skb) { | |
512 | printk(KERN_WARNING "hdlc_l2l1: this shouldn't happen\n"); | |
513 | } else { | |
514 | test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); | |
515 | bcs->tx_skb = skb; | |
516 | bcs->hw.hdlc.count = 0; | |
517 | bcs->cs->BC_Send_Data(bcs); | |
518 | } | |
519 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
520 | break; | |
521 | case (PH_PULL | REQUEST): | |
522 | if (!bcs->tx_skb) { | |
523 | test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags); | |
524 | st->l1.l1l2(st, PH_PULL | CONFIRM, NULL); | |
525 | } else | |
526 | test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags); | |
527 | break; | |
528 | case (PH_ACTIVATE | REQUEST): | |
529 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
530 | test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag); | |
531 | modehdlc(bcs, st->l1.mode, st->l1.bc); | |
532 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
533 | l1_msg_b(st, pr, arg); | |
534 | break; | |
535 | case (PH_DEACTIVATE | REQUEST): | |
536 | l1_msg_b(st, pr, arg); | |
537 | break; | |
538 | case (PH_DEACTIVATE | CONFIRM): | |
539 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
540 | test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag); | |
541 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
542 | modehdlc(bcs, 0, st->l1.bc); | |
543 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
544 | st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL); | |
545 | break; | |
546 | } | |
547 | } | |
548 | ||
672c3fd9 | 549 | static void |
1da177e4 LT |
550 | close_hdlcstate(struct BCState *bcs) |
551 | { | |
552 | modehdlc(bcs, 0, 0); | |
553 | if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) { | |
3c7208f2 JJ |
554 | kfree(bcs->hw.hdlc.rcvbuf); |
555 | bcs->hw.hdlc.rcvbuf = NULL; | |
556 | kfree(bcs->blog); | |
557 | bcs->blog = NULL; | |
1da177e4 LT |
558 | skb_queue_purge(&bcs->rqueue); |
559 | skb_queue_purge(&bcs->squeue); | |
560 | if (bcs->tx_skb) { | |
561 | dev_kfree_skb_any(bcs->tx_skb); | |
562 | bcs->tx_skb = NULL; | |
563 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
564 | } | |
565 | } | |
566 | } | |
567 | ||
672c3fd9 | 568 | static int |
1da177e4 LT |
569 | open_hdlcstate(struct IsdnCardState *cs, struct BCState *bcs) |
570 | { | |
571 | if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) { | |
572 | if (!(bcs->hw.hdlc.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) { | |
573 | printk(KERN_WARNING | |
574 | "HiSax: No memory for hdlc.rcvbuf\n"); | |
575 | return (1); | |
576 | } | |
577 | if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) { | |
578 | printk(KERN_WARNING | |
579 | "HiSax: No memory for bcs->blog\n"); | |
580 | test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); | |
581 | kfree(bcs->hw.hdlc.rcvbuf); | |
582 | bcs->hw.hdlc.rcvbuf = NULL; | |
583 | return (2); | |
584 | } | |
585 | skb_queue_head_init(&bcs->rqueue); | |
586 | skb_queue_head_init(&bcs->squeue); | |
587 | } | |
588 | bcs->tx_skb = NULL; | |
589 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
590 | bcs->event = 0; | |
591 | bcs->hw.hdlc.rcvidx = 0; | |
592 | bcs->tx_cnt = 0; | |
593 | return (0); | |
594 | } | |
595 | ||
672c3fd9 | 596 | static int |
1da177e4 LT |
597 | setstack_hdlc(struct PStack *st, struct BCState *bcs) |
598 | { | |
599 | bcs->channel = st->l1.bc; | |
600 | if (open_hdlcstate(st->l1.hardware, bcs)) | |
601 | return (-1); | |
602 | st->l1.bcs = bcs; | |
603 | st->l2.l2l1 = hdlc_l2l1; | |
604 | setstack_manager(st); | |
605 | bcs->st = st; | |
606 | setstack_l1_B(st); | |
607 | return (0); | |
608 | } | |
609 | ||
672c3fd9 | 610 | #if 0 |
1da177e4 LT |
611 | void __init |
612 | clear_pending_hdlc_ints(struct IsdnCardState *cs) | |
613 | { | |
614 | u_int val; | |
615 | ||
616 | if (cs->subtyp == AVM_FRITZ_PCI) { | |
617 | val = ReadHDLCPCI(cs, 0, HDLC_STATUS); | |
618 | debugl1(cs, "HDLC 1 STA %x", val); | |
619 | val = ReadHDLCPCI(cs, 1, HDLC_STATUS); | |
620 | debugl1(cs, "HDLC 2 STA %x", val); | |
621 | } else { | |
622 | val = ReadHDLCPnP(cs, 0, HDLC_STATUS); | |
623 | debugl1(cs, "HDLC 1 STA %x", val); | |
624 | val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 1); | |
625 | debugl1(cs, "HDLC 1 RML %x", val); | |
626 | val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 2); | |
627 | debugl1(cs, "HDLC 1 MODE %x", val); | |
628 | val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 3); | |
629 | debugl1(cs, "HDLC 1 VIN %x", val); | |
630 | val = ReadHDLCPnP(cs, 1, HDLC_STATUS); | |
631 | debugl1(cs, "HDLC 2 STA %x", val); | |
632 | val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 1); | |
633 | debugl1(cs, "HDLC 2 RML %x", val); | |
634 | val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 2); | |
635 | debugl1(cs, "HDLC 2 MODE %x", val); | |
636 | val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 3); | |
637 | debugl1(cs, "HDLC 2 VIN %x", val); | |
638 | } | |
639 | } | |
672c3fd9 | 640 | #endif /* 0 */ |
1da177e4 | 641 | |
67eb5db5 | 642 | static void |
1da177e4 LT |
643 | inithdlc(struct IsdnCardState *cs) |
644 | { | |
645 | cs->bcs[0].BC_SetStack = setstack_hdlc; | |
646 | cs->bcs[1].BC_SetStack = setstack_hdlc; | |
647 | cs->bcs[0].BC_Close = close_hdlcstate; | |
648 | cs->bcs[1].BC_Close = close_hdlcstate; | |
649 | modehdlc(cs->bcs, -1, 0); | |
650 | modehdlc(cs->bcs + 1, -1, 1); | |
651 | } | |
652 | ||
653 | static irqreturn_t | |
654 | avm_pcipnp_interrupt(int intno, void *dev_id, struct pt_regs *regs) | |
655 | { | |
656 | struct IsdnCardState *cs = dev_id; | |
657 | u_long flags; | |
658 | u_char val; | |
659 | u_char sval; | |
660 | ||
661 | spin_lock_irqsave(&cs->lock, flags); | |
662 | sval = inb(cs->hw.avm.cfg_reg + 2); | |
663 | if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK) { | |
664 | /* possible a shared IRQ reqest */ | |
665 | spin_unlock_irqrestore(&cs->lock, flags); | |
666 | return IRQ_NONE; | |
667 | } | |
668 | if (!(sval & AVM_STATUS0_IRQ_ISAC)) { | |
669 | val = ReadISAC(cs, ISAC_ISTA); | |
670 | isac_interrupt(cs, val); | |
671 | } | |
672 | if (!(sval & AVM_STATUS0_IRQ_HDLC)) { | |
673 | HDLC_irq_main(cs); | |
674 | } | |
675 | WriteISAC(cs, ISAC_MASK, 0xFF); | |
676 | WriteISAC(cs, ISAC_MASK, 0x0); | |
677 | spin_unlock_irqrestore(&cs->lock, flags); | |
678 | return IRQ_HANDLED; | |
679 | } | |
680 | ||
681 | static void | |
682 | reset_avmpcipnp(struct IsdnCardState *cs) | |
683 | { | |
684 | printk(KERN_INFO "AVM PCI/PnP: reset\n"); | |
685 | outb(AVM_STATUS0_RESET | AVM_STATUS0_DIS_TIMER, cs->hw.avm.cfg_reg + 2); | |
686 | mdelay(10); | |
687 | outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER | AVM_STATUS0_ENA_IRQ, cs->hw.avm.cfg_reg + 2); | |
688 | outb(AVM_STATUS1_ENA_IOM | cs->irq, cs->hw.avm.cfg_reg + 3); | |
689 | mdelay(10); | |
690 | printk(KERN_INFO "AVM PCI/PnP: S1 %x\n", inb(cs->hw.avm.cfg_reg + 3)); | |
691 | } | |
692 | ||
693 | static int | |
694 | AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) | |
695 | { | |
696 | u_long flags; | |
697 | ||
698 | switch (mt) { | |
699 | case CARD_RESET: | |
700 | spin_lock_irqsave(&cs->lock, flags); | |
701 | reset_avmpcipnp(cs); | |
702 | spin_unlock_irqrestore(&cs->lock, flags); | |
703 | return(0); | |
704 | case CARD_RELEASE: | |
705 | outb(0, cs->hw.avm.cfg_reg + 2); | |
706 | release_region(cs->hw.avm.cfg_reg, 32); | |
707 | return(0); | |
708 | case CARD_INIT: | |
709 | spin_lock_irqsave(&cs->lock, flags); | |
710 | reset_avmpcipnp(cs); | |
711 | clear_pending_isac_ints(cs); | |
712 | initisac(cs); | |
713 | inithdlc(cs); | |
714 | outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER, | |
715 | cs->hw.avm.cfg_reg + 2); | |
716 | WriteISAC(cs, ISAC_MASK, 0); | |
717 | outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER | | |
718 | AVM_STATUS0_ENA_IRQ, cs->hw.avm.cfg_reg + 2); | |
719 | /* RESET Receiver and Transmitter */ | |
720 | WriteISAC(cs, ISAC_CMDR, 0x41); | |
721 | spin_unlock_irqrestore(&cs->lock, flags); | |
722 | return(0); | |
723 | case CARD_TEST: | |
724 | return(0); | |
725 | } | |
726 | return(0); | |
727 | } | |
728 | ||
729 | #ifdef CONFIG_PCI | |
67eb5db5 | 730 | static struct pci_dev *dev_avm __devinitdata = NULL; |
1da177e4 LT |
731 | #endif |
732 | #ifdef __ISAPNP__ | |
67eb5db5 | 733 | static struct pnp_card *pnp_avm_c __devinitdata = NULL; |
1da177e4 LT |
734 | #endif |
735 | ||
67eb5db5 | 736 | int __devinit |
1da177e4 LT |
737 | setup_avm_pcipnp(struct IsdnCard *card) |
738 | { | |
739 | u_int val, ver; | |
740 | struct IsdnCardState *cs = card->cs; | |
741 | char tmp[64]; | |
742 | ||
743 | strcpy(tmp, avm_pci_rev); | |
744 | printk(KERN_INFO "HiSax: AVM PCI driver Rev. %s\n", HiSax_getrev(tmp)); | |
745 | if (cs->typ != ISDN_CTYPE_FRITZPCI) | |
746 | return (0); | |
747 | if (card->para[1]) { | |
748 | /* old manual method */ | |
749 | cs->hw.avm.cfg_reg = card->para[1]; | |
750 | cs->irq = card->para[0]; | |
751 | cs->subtyp = AVM_FRITZ_PNP; | |
752 | goto ready; | |
753 | } | |
754 | #ifdef __ISAPNP__ | |
755 | if (isapnp_present()) { | |
756 | struct pnp_dev *pnp_avm_d = NULL; | |
757 | if ((pnp_avm_c = pnp_find_card( | |
758 | ISAPNP_VENDOR('A', 'V', 'M'), | |
759 | ISAPNP_FUNCTION(0x0900), pnp_avm_c))) { | |
760 | if ((pnp_avm_d = pnp_find_dev(pnp_avm_c, | |
761 | ISAPNP_VENDOR('A', 'V', 'M'), | |
762 | ISAPNP_FUNCTION(0x0900), pnp_avm_d))) { | |
763 | int err; | |
764 | ||
765 | pnp_disable_dev(pnp_avm_d); | |
766 | err = pnp_activate_dev(pnp_avm_d); | |
767 | if (err<0) { | |
768 | printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n", | |
769 | __FUNCTION__, err); | |
770 | return(0); | |
771 | } | |
772 | cs->hw.avm.cfg_reg = | |
773 | pnp_port_start(pnp_avm_d, 0); | |
774 | cs->irq = pnp_irq(pnp_avm_d, 0); | |
775 | if (!cs->irq) { | |
776 | printk(KERN_ERR "FritzPnP:No IRQ\n"); | |
777 | return(0); | |
778 | } | |
779 | if (!cs->hw.avm.cfg_reg) { | |
780 | printk(KERN_ERR "FritzPnP:No IO address\n"); | |
781 | return(0); | |
782 | } | |
783 | cs->subtyp = AVM_FRITZ_PNP; | |
784 | goto ready; | |
785 | } | |
786 | } | |
787 | } else { | |
788 | printk(KERN_INFO "FritzPnP: no ISA PnP present\n"); | |
789 | } | |
790 | #endif | |
791 | #ifdef CONFIG_PCI | |
792 | if ((dev_avm = pci_find_device(PCI_VENDOR_ID_AVM, | |
793 | PCI_DEVICE_ID_AVM_A1, dev_avm))) { | |
794 | if (pci_enable_device(dev_avm)) | |
795 | return(0); | |
796 | cs->irq = dev_avm->irq; | |
797 | if (!cs->irq) { | |
798 | printk(KERN_ERR "FritzPCI: No IRQ for PCI card found\n"); | |
799 | return(0); | |
800 | } | |
801 | cs->hw.avm.cfg_reg = pci_resource_start(dev_avm, 1); | |
802 | if (!cs->hw.avm.cfg_reg) { | |
803 | printk(KERN_ERR "FritzPCI: No IO-Adr for PCI card found\n"); | |
804 | return(0); | |
805 | } | |
806 | cs->subtyp = AVM_FRITZ_PCI; | |
807 | } else { | |
808 | printk(KERN_WARNING "FritzPCI: No PCI card found\n"); | |
809 | return(0); | |
810 | } | |
9ba02bec | 811 | cs->irq_flags |= IRQF_SHARED; |
1da177e4 LT |
812 | #else |
813 | printk(KERN_WARNING "FritzPCI: NO_PCI_BIOS\n"); | |
814 | return (0); | |
815 | #endif /* CONFIG_PCI */ | |
816 | ready: | |
817 | cs->hw.avm.isac = cs->hw.avm.cfg_reg + 0x10; | |
818 | if (!request_region(cs->hw.avm.cfg_reg, 32, | |
819 | (cs->subtyp == AVM_FRITZ_PCI) ? "avm PCI" : "avm PnP")) { | |
820 | printk(KERN_WARNING | |
821 | "HiSax: %s config port %x-%x already in use\n", | |
822 | CardType[card->typ], | |
823 | cs->hw.avm.cfg_reg, | |
824 | cs->hw.avm.cfg_reg + 31); | |
825 | return (0); | |
826 | } | |
827 | switch (cs->subtyp) { | |
828 | case AVM_FRITZ_PCI: | |
829 | val = inl(cs->hw.avm.cfg_reg); | |
830 | printk(KERN_INFO "AVM PCI: stat %#x\n", val); | |
831 | printk(KERN_INFO "AVM PCI: Class %X Rev %d\n", | |
832 | val & 0xff, (val>>8) & 0xff); | |
833 | cs->BC_Read_Reg = &ReadHDLC_s; | |
834 | cs->BC_Write_Reg = &WriteHDLC_s; | |
835 | break; | |
836 | case AVM_FRITZ_PNP: | |
837 | val = inb(cs->hw.avm.cfg_reg); | |
838 | ver = inb(cs->hw.avm.cfg_reg + 1); | |
839 | printk(KERN_INFO "AVM PnP: Class %X Rev %d\n", val, ver); | |
840 | cs->BC_Read_Reg = &ReadHDLCPnP; | |
841 | cs->BC_Write_Reg = &WriteHDLCPnP; | |
842 | break; | |
843 | default: | |
844 | printk(KERN_WARNING "AVM unknown subtype %d\n", cs->subtyp); | |
845 | return(0); | |
846 | } | |
847 | printk(KERN_INFO "HiSax: %s config irq:%d base:0x%X\n", | |
848 | (cs->subtyp == AVM_FRITZ_PCI) ? "AVM Fritz!PCI" : "AVM Fritz!PnP", | |
849 | cs->irq, cs->hw.avm.cfg_reg); | |
850 | ||
851 | setup_isac(cs); | |
852 | cs->readisac = &ReadISAC; | |
853 | cs->writeisac = &WriteISAC; | |
854 | cs->readisacfifo = &ReadISACfifo; | |
855 | cs->writeisacfifo = &WriteISACfifo; | |
856 | cs->BC_Send_Data = &hdlc_fill_fifo; | |
857 | cs->cardmsg = &AVM_card_msg; | |
858 | cs->irq_func = &avm_pcipnp_interrupt; | |
859 | cs->writeisac(cs, ISAC_MASK, 0xFF); | |
860 | ISACVersion(cs, (cs->subtyp == AVM_FRITZ_PCI) ? "AVM PCI:" : "AVM PnP:"); | |
861 | return (1); | |
862 | } |