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1da177e4 LT |
1 | /* $Id: w6692.c,v 1.18.2.4 2004/02/11 13:21:34 keil Exp $ |
2 | * | |
3 | * Winbond W6692 specific routines | |
4 | * | |
5 | * Author Petr Novak | |
6 | * Copyright by Petr Novak <petr.novak@i.cz> | |
475be4d8 | 7 | * |
1da177e4 LT |
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 | */ | |
12 | ||
1da177e4 LT |
13 | #include <linux/init.h> |
14 | #include "hisax.h" | |
15 | #include "w6692.h" | |
16 | #include "isdnl1.h" | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/pci.h> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
1da177e4 LT |
20 | |
21 | /* table entry in the PCI devices list */ | |
22 | typedef struct { | |
23 | int vendor_id; | |
24 | int device_id; | |
25 | char *vendor_name; | |
26 | char *card_name; | |
27 | } PCI_ENTRY; | |
28 | ||
29 | static const PCI_ENTRY id_list[] = | |
30 | { | |
31 | {PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, "Winbond", "W6692"}, | |
32 | {PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH, "Dynalink/AsusCom", "IS64PH"}, | |
33 | {0, 0, "U.S.Robotics", "ISDN PCI Card TA"} | |
34 | }; | |
35 | ||
36 | #define W6692_SV_USR 0x16ec | |
37 | #define W6692_SD_USR 0x3409 | |
38 | #define W6692_WINBOND 0 | |
39 | #define W6692_DYNALINK 1 | |
40 | #define W6692_USR 2 | |
41 | ||
672c3fd9 | 42 | static const char *w6692_revision = "$Revision: 1.18.2.4 $"; |
1da177e4 LT |
43 | |
44 | #define DBUSY_TIMER_VALUE 80 | |
45 | ||
67eb5db5 | 46 | static char *W6692Ver[] = |
1da177e4 LT |
47 | {"W6692 V00", "W6692 V01", "W6692 V10", |
48 | "W6692 V11"}; | |
49 | ||
67eb5db5 | 50 | static void |
1da177e4 LT |
51 | W6692Version(struct IsdnCardState *cs, char *s) |
52 | { | |
53 | int val; | |
54 | ||
55 | val = cs->readW6692(cs, W_D_RBCH); | |
56 | printk(KERN_INFO "%s Winbond W6692 version (%x): %s\n", s, val, W6692Ver[(val >> 6) & 3]); | |
57 | } | |
58 | ||
59 | static void | |
60 | ph_command(struct IsdnCardState *cs, unsigned int command) | |
61 | { | |
62 | if (cs->debug & L1_DEB_ISAC) | |
63 | debugl1(cs, "ph_command %x", command); | |
64 | cs->writeisac(cs, W_CIX, command); | |
65 | } | |
66 | ||
67 | ||
68 | static void | |
69 | W6692_new_ph(struct IsdnCardState *cs) | |
70 | { | |
71 | switch (cs->dc.w6692.ph_state) { | |
475be4d8 JP |
72 | case (W_L1CMD_RST): |
73 | ph_command(cs, W_L1CMD_DRC); | |
74 | l1_msg(cs, HW_RESET | INDICATION, NULL); | |
75 | /* fallthru */ | |
76 | case (W_L1IND_CD): | |
77 | l1_msg(cs, HW_DEACTIVATE | CONFIRM, NULL); | |
78 | break; | |
79 | case (W_L1IND_DRD): | |
80 | l1_msg(cs, HW_DEACTIVATE | INDICATION, NULL); | |
81 | break; | |
82 | case (W_L1IND_CE): | |
83 | l1_msg(cs, HW_POWERUP | CONFIRM, NULL); | |
84 | break; | |
85 | case (W_L1IND_LD): | |
86 | l1_msg(cs, HW_RSYNC | INDICATION, NULL); | |
87 | break; | |
88 | case (W_L1IND_ARD): | |
89 | l1_msg(cs, HW_INFO2 | INDICATION, NULL); | |
90 | break; | |
91 | case (W_L1IND_AI8): | |
92 | l1_msg(cs, HW_INFO4_P8 | INDICATION, NULL); | |
93 | break; | |
94 | case (W_L1IND_AI10): | |
95 | l1_msg(cs, HW_INFO4_P10 | INDICATION, NULL); | |
96 | break; | |
97 | default: | |
98 | break; | |
1da177e4 LT |
99 | } |
100 | } | |
101 | ||
102 | static void | |
c4028958 | 103 | W6692_bh(struct work_struct *work) |
1da177e4 | 104 | { |
c4028958 DH |
105 | struct IsdnCardState *cs = |
106 | container_of(work, struct IsdnCardState, tqueue); | |
1da177e4 LT |
107 | struct PStack *stptr; |
108 | ||
1da177e4 LT |
109 | if (test_and_clear_bit(D_CLEARBUSY, &cs->event)) { |
110 | if (cs->debug) | |
111 | debugl1(cs, "D-Channel Busy cleared"); | |
112 | stptr = cs->stlist; | |
113 | while (stptr != NULL) { | |
114 | stptr->l1.l1l2(stptr, PH_PAUSE | CONFIRM, NULL); | |
115 | stptr = stptr->next; | |
116 | } | |
117 | } | |
118 | if (test_and_clear_bit(D_L1STATECHANGE, &cs->event)) | |
119 | W6692_new_ph(cs); | |
120 | if (test_and_clear_bit(D_RCVBUFREADY, &cs->event)) | |
121 | DChannel_proc_rcv(cs); | |
122 | if (test_and_clear_bit(D_XMTBUFREADY, &cs->event)) | |
123 | DChannel_proc_xmt(cs); | |
124 | /* | |
475be4d8 JP |
125 | if (test_and_clear_bit(D_RX_MON1, &cs->event)) |
126 | arcofi_fsm(cs, ARCOFI_RX_END, NULL); | |
127 | if (test_and_clear_bit(D_TX_MON1, &cs->event)) | |
128 | arcofi_fsm(cs, ARCOFI_TX_END, NULL); | |
129 | */ | |
1da177e4 LT |
130 | } |
131 | ||
132 | static void | |
133 | W6692_empty_fifo(struct IsdnCardState *cs, int count) | |
134 | { | |
135 | u_char *ptr; | |
136 | ||
137 | if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO)) | |
138 | debugl1(cs, "W6692_empty_fifo"); | |
139 | ||
140 | if ((cs->rcvidx + count) >= MAX_DFRAME_LEN_L1) { | |
141 | if (cs->debug & L1_DEB_WARN) | |
142 | debugl1(cs, "W6692_empty_fifo overrun %d", | |
143 | cs->rcvidx + count); | |
144 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK); | |
145 | cs->rcvidx = 0; | |
146 | return; | |
147 | } | |
148 | ptr = cs->rcvbuf + cs->rcvidx; | |
149 | cs->rcvidx += count; | |
150 | cs->readW6692fifo(cs, ptr, count); | |
151 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK); | |
152 | if (cs->debug & L1_DEB_ISAC_FIFO) { | |
153 | char *t = cs->dlog; | |
154 | ||
155 | t += sprintf(t, "W6692_empty_fifo cnt %d", count); | |
156 | QuickHex(t, ptr, count); | |
35a4a573 | 157 | debugl1(cs, "%s", cs->dlog); |
1da177e4 LT |
158 | } |
159 | } | |
160 | ||
161 | static void | |
162 | W6692_fill_fifo(struct IsdnCardState *cs) | |
163 | { | |
164 | int count, more; | |
165 | u_char *ptr; | |
166 | ||
167 | if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO)) | |
168 | debugl1(cs, "W6692_fill_fifo"); | |
169 | ||
170 | if (!cs->tx_skb) | |
171 | return; | |
172 | ||
173 | count = cs->tx_skb->len; | |
174 | if (count <= 0) | |
175 | return; | |
176 | ||
177 | more = 0; | |
178 | if (count > W_D_FIFO_THRESH) { | |
179 | more = !0; | |
180 | count = W_D_FIFO_THRESH; | |
181 | } | |
182 | ptr = cs->tx_skb->data; | |
183 | skb_pull(cs->tx_skb, count); | |
184 | cs->tx_cnt += count; | |
185 | cs->writeW6692fifo(cs, ptr, count); | |
186 | cs->writeW6692(cs, W_D_CMDR, more ? W_D_CMDR_XMS : (W_D_CMDR_XMS | W_D_CMDR_XME)); | |
187 | if (test_and_set_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) { | |
188 | debugl1(cs, "W6692_fill_fifo dbusytimer running"); | |
189 | del_timer(&cs->dbusytimer); | |
190 | } | |
191 | init_timer(&cs->dbusytimer); | |
192 | cs->dbusytimer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ) / 1000); | |
193 | add_timer(&cs->dbusytimer); | |
194 | if (cs->debug & L1_DEB_ISAC_FIFO) { | |
195 | char *t = cs->dlog; | |
196 | ||
197 | t += sprintf(t, "W6692_fill_fifo cnt %d", count); | |
198 | QuickHex(t, ptr, count); | |
35a4a573 | 199 | debugl1(cs, "%s", cs->dlog); |
1da177e4 LT |
200 | } |
201 | } | |
202 | ||
203 | static void | |
204 | W6692B_empty_fifo(struct BCState *bcs, int count) | |
205 | { | |
206 | u_char *ptr; | |
207 | struct IsdnCardState *cs = bcs->cs; | |
208 | ||
209 | if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO)) | |
210 | debugl1(cs, "W6692B_empty_fifo"); | |
211 | ||
212 | if (bcs->hw.w6692.rcvidx + count > HSCX_BUFMAX) { | |
213 | if (cs->debug & L1_DEB_WARN) | |
214 | debugl1(cs, "W6692B_empty_fifo: incoming packet too large"); | |
215 | cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); | |
216 | bcs->hw.w6692.rcvidx = 0; | |
217 | return; | |
218 | } | |
219 | ptr = bcs->hw.w6692.rcvbuf + bcs->hw.w6692.rcvidx; | |
220 | bcs->hw.w6692.rcvidx += count; | |
221 | READW6692BFIFO(cs, bcs->channel, ptr, count); | |
222 | cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); | |
223 | if (cs->debug & L1_DEB_HSCX_FIFO) { | |
224 | char *t = bcs->blog; | |
225 | ||
226 | t += sprintf(t, "W6692B_empty_fifo %c cnt %d", | |
227 | bcs->channel + '1', count); | |
228 | QuickHex(t, ptr, count); | |
35a4a573 | 229 | debugl1(cs, "%s", bcs->blog); |
1da177e4 LT |
230 | } |
231 | } | |
232 | ||
233 | static void | |
234 | W6692B_fill_fifo(struct BCState *bcs) | |
235 | { | |
236 | struct IsdnCardState *cs = bcs->cs; | |
237 | int more, count; | |
238 | u_char *ptr; | |
239 | ||
240 | if (!bcs->tx_skb) | |
241 | return; | |
242 | if (bcs->tx_skb->len <= 0) | |
243 | return; | |
244 | ||
245 | more = (bcs->mode == L1_MODE_TRANS) ? 1 : 0; | |
246 | if (bcs->tx_skb->len > W_B_FIFO_THRESH) { | |
247 | more = 1; | |
248 | count = W_B_FIFO_THRESH; | |
249 | } else | |
250 | count = bcs->tx_skb->len; | |
251 | ||
252 | if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO)) | |
475be4d8 | 253 | debugl1(cs, "W6692B_fill_fifo%s%d", (more ? " " : " last "), count); |
1da177e4 LT |
254 | |
255 | ptr = bcs->tx_skb->data; | |
256 | skb_pull(bcs->tx_skb, count); | |
257 | bcs->tx_cnt -= count; | |
258 | bcs->hw.w6692.count += count; | |
259 | WRITEW6692BFIFO(cs, bcs->channel, ptr, count); | |
260 | cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACT | W_B_CMDR_XMS | (more ? 0 : W_B_CMDR_XME)); | |
261 | if (cs->debug & L1_DEB_HSCX_FIFO) { | |
262 | char *t = bcs->blog; | |
263 | ||
264 | t += sprintf(t, "W6692B_fill_fifo %c cnt %d", | |
265 | bcs->channel + '1', count); | |
266 | QuickHex(t, ptr, count); | |
35a4a573 | 267 | debugl1(cs, "%s", bcs->blog); |
1da177e4 LT |
268 | } |
269 | } | |
270 | ||
271 | static void | |
272 | W6692B_interrupt(struct IsdnCardState *cs, u_char bchan) | |
273 | { | |
274 | u_char val; | |
275 | u_char r; | |
276 | struct BCState *bcs; | |
277 | struct sk_buff *skb; | |
278 | int count; | |
279 | ||
475be4d8 | 280 | bcs = (cs->bcs->channel == bchan) ? cs->bcs : (cs->bcs + 1); |
1da177e4 LT |
281 | val = cs->BC_Read_Reg(cs, bchan, W_B_EXIR); |
282 | debugl1(cs, "W6692B chan %d B_EXIR 0x%02X", bchan, val); | |
283 | ||
284 | if (!test_bit(BC_FLG_INIT, &bcs->Flag)) { | |
285 | debugl1(cs, "W6692B not INIT yet"); | |
286 | return; | |
287 | } | |
288 | if (val & W_B_EXI_RME) { /* RME */ | |
289 | r = cs->BC_Read_Reg(cs, bchan, W_B_STAR); | |
290 | if (r & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) { | |
291 | if (cs->debug & L1_DEB_WARN) | |
292 | debugl1(cs, "W6692 B STAR %x", r); | |
293 | if ((r & W_B_STAR_RDOV) && bcs->mode) | |
294 | if (cs->debug & L1_DEB_WARN) | |
295 | debugl1(cs, "W6692 B RDOV mode=%d", | |
296 | bcs->mode); | |
297 | if (r & W_B_STAR_CRCE) | |
298 | if (cs->debug & L1_DEB_WARN) | |
299 | debugl1(cs, "W6692 B CRC error"); | |
300 | cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RRST | W_B_CMDR_RACT); | |
301 | } else { | |
302 | count = cs->BC_Read_Reg(cs, bchan, W_B_RBCL) & (W_B_FIFO_THRESH - 1); | |
303 | if (count == 0) | |
304 | count = W_B_FIFO_THRESH; | |
305 | W6692B_empty_fifo(bcs, count); | |
306 | if ((count = bcs->hw.w6692.rcvidx) > 0) { | |
307 | if (cs->debug & L1_DEB_HSCX_FIFO) | |
308 | debugl1(cs, "W6692 Bchan Frame %d", count); | |
309 | if (!(skb = dev_alloc_skb(count))) | |
310 | printk(KERN_WARNING "W6692: Bchan receive out of memory\n"); | |
311 | else { | |
312 | memcpy(skb_put(skb, count), bcs->hw.w6692.rcvbuf, count); | |
313 | skb_queue_tail(&bcs->rqueue, skb); | |
314 | } | |
315 | } | |
316 | } | |
317 | bcs->hw.w6692.rcvidx = 0; | |
318 | schedule_event(bcs, B_RCVBUFREADY); | |
319 | } | |
320 | if (val & W_B_EXI_RMR) { /* RMR */ | |
321 | W6692B_empty_fifo(bcs, W_B_FIFO_THRESH); | |
322 | r = cs->BC_Read_Reg(cs, bchan, W_B_STAR); | |
323 | if (r & W_B_STAR_RDOV) { | |
324 | if (cs->debug & L1_DEB_WARN) | |
475be4d8 | 325 | debugl1(cs, "W6692 B RDOV(RMR) mode=%d", bcs->mode); |
1da177e4 LT |
326 | cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RRST | W_B_CMDR_RACT); |
327 | if (bcs->mode != L1_MODE_TRANS) | |
328 | bcs->hw.w6692.rcvidx = 0; | |
329 | } | |
330 | if (bcs->mode == L1_MODE_TRANS) { | |
331 | /* receive audio data */ | |
332 | if (!(skb = dev_alloc_skb(W_B_FIFO_THRESH))) | |
333 | printk(KERN_WARNING "HiSax: receive out of memory\n"); | |
334 | else { | |
335 | memcpy(skb_put(skb, W_B_FIFO_THRESH), bcs->hw.w6692.rcvbuf, W_B_FIFO_THRESH); | |
336 | skb_queue_tail(&bcs->rqueue, skb); | |
337 | } | |
338 | bcs->hw.w6692.rcvidx = 0; | |
339 | schedule_event(bcs, B_RCVBUFREADY); | |
340 | } | |
341 | } | |
342 | if (val & W_B_EXI_XDUN) { /* XDUN */ | |
343 | cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT); | |
344 | if (cs->debug & L1_DEB_WARN) | |
345 | debugl1(cs, "W6692 B EXIR %x Lost TX", val); | |
346 | if (bcs->mode == 1) | |
347 | W6692B_fill_fifo(bcs); | |
348 | else { | |
349 | /* Here we lost an TX interrupt, so | |
475be4d8 | 350 | * restart transmitting the whole frame. |
1da177e4 LT |
351 | */ |
352 | if (bcs->tx_skb) { | |
353 | skb_push(bcs->tx_skb, bcs->hw.w6692.count); | |
354 | bcs->tx_cnt += bcs->hw.w6692.count; | |
355 | bcs->hw.w6692.count = 0; | |
356 | } | |
357 | } | |
358 | return; | |
359 | } | |
360 | if (val & W_B_EXI_XFR) { /* XFR */ | |
361 | r = cs->BC_Read_Reg(cs, bchan, W_B_STAR); | |
362 | if (r & W_B_STAR_XDOW) { | |
363 | if (cs->debug & L1_DEB_WARN) | |
364 | debugl1(cs, "W6692 B STAR %x XDOW", r); | |
365 | cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT); | |
366 | if (bcs->tx_skb && (bcs->mode != 1)) { | |
367 | skb_push(bcs->tx_skb, bcs->hw.w6692.count); | |
368 | bcs->tx_cnt += bcs->hw.w6692.count; | |
369 | bcs->hw.w6692.count = 0; | |
370 | } | |
371 | } | |
372 | if (bcs->tx_skb) { | |
373 | if (bcs->tx_skb->len) { | |
374 | W6692B_fill_fifo(bcs); | |
375 | return; | |
376 | } else { | |
475be4d8 JP |
377 | if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) && |
378 | (PACKET_NOACK != bcs->tx_skb->pkt_type)) { | |
379 | u_long flags; | |
1da177e4 LT |
380 | spin_lock_irqsave(&bcs->aclock, flags); |
381 | bcs->ackcnt += bcs->hw.w6692.count; | |
382 | spin_unlock_irqrestore(&bcs->aclock, flags); | |
383 | schedule_event(bcs, B_ACKPENDING); | |
384 | } | |
385 | dev_kfree_skb_irq(bcs->tx_skb); | |
386 | bcs->hw.w6692.count = 0; | |
387 | bcs->tx_skb = NULL; | |
388 | } | |
389 | } | |
390 | if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) { | |
391 | bcs->hw.w6692.count = 0; | |
392 | test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); | |
393 | W6692B_fill_fifo(bcs); | |
394 | } else { | |
395 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
396 | schedule_event(bcs, B_XMTBUFREADY); | |
397 | } | |
398 | } | |
399 | } | |
400 | ||
401 | static irqreturn_t | |
7d12e780 | 402 | W6692_interrupt(int intno, void *dev_id) |
1da177e4 LT |
403 | { |
404 | struct IsdnCardState *cs = dev_id; | |
405 | u_char val, exval, v1; | |
406 | struct sk_buff *skb; | |
407 | u_int count; | |
408 | u_long flags; | |
409 | int icnt = 5; | |
410 | ||
411 | spin_lock_irqsave(&cs->lock, flags); | |
412 | val = cs->readW6692(cs, W_ISTA); | |
413 | if (!val) { | |
414 | spin_unlock_irqrestore(&cs->lock, flags); | |
415 | return IRQ_NONE; | |
416 | } | |
475be4d8 | 417 | StartW6692: |
1da177e4 LT |
418 | if (cs->debug & L1_DEB_ISAC) |
419 | debugl1(cs, "W6692 ISTA %x", val); | |
420 | ||
421 | if (val & W_INT_D_RME) { /* RME */ | |
422 | exval = cs->readW6692(cs, W_D_RSTA); | |
423 | if (exval & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) { | |
424 | if (exval & W_D_RSTA_RDOV) | |
425 | if (cs->debug & L1_DEB_WARN) | |
426 | debugl1(cs, "W6692 RDOV"); | |
427 | if (exval & W_D_RSTA_CRCE) | |
428 | if (cs->debug & L1_DEB_WARN) | |
429 | debugl1(cs, "W6692 D-channel CRC error"); | |
430 | if (exval & W_D_RSTA_RMB) | |
431 | if (cs->debug & L1_DEB_WARN) | |
432 | debugl1(cs, "W6692 D-channel ABORT"); | |
433 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST); | |
434 | } else { | |
435 | count = cs->readW6692(cs, W_D_RBCL) & (W_D_FIFO_THRESH - 1); | |
436 | if (count == 0) | |
437 | count = W_D_FIFO_THRESH; | |
438 | W6692_empty_fifo(cs, count); | |
439 | if ((count = cs->rcvidx) > 0) { | |
440 | cs->rcvidx = 0; | |
441 | if (!(skb = alloc_skb(count, GFP_ATOMIC))) | |
442 | printk(KERN_WARNING "HiSax: D receive out of memory\n"); | |
443 | else { | |
444 | memcpy(skb_put(skb, count), cs->rcvbuf, count); | |
445 | skb_queue_tail(&cs->rq, skb); | |
446 | } | |
447 | } | |
448 | } | |
449 | cs->rcvidx = 0; | |
450 | schedule_event(cs, D_RCVBUFREADY); | |
451 | } | |
452 | if (val & W_INT_D_RMR) { /* RMR */ | |
453 | W6692_empty_fifo(cs, W_D_FIFO_THRESH); | |
454 | } | |
455 | if (val & W_INT_D_XFR) { /* XFR */ | |
456 | if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) | |
457 | del_timer(&cs->dbusytimer); | |
458 | if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags)) | |
459 | schedule_event(cs, D_CLEARBUSY); | |
460 | if (cs->tx_skb) { | |
461 | if (cs->tx_skb->len) { | |
462 | W6692_fill_fifo(cs); | |
463 | goto afterXFR; | |
464 | } else { | |
465 | dev_kfree_skb_irq(cs->tx_skb); | |
466 | cs->tx_cnt = 0; | |
467 | cs->tx_skb = NULL; | |
468 | } | |
469 | } | |
470 | if ((cs->tx_skb = skb_dequeue(&cs->sq))) { | |
471 | cs->tx_cnt = 0; | |
472 | W6692_fill_fifo(cs); | |
473 | } else | |
474 | schedule_event(cs, D_XMTBUFREADY); | |
475 | } | |
475be4d8 | 476 | afterXFR: |
1da177e4 LT |
477 | if (val & (W_INT_XINT0 | W_INT_XINT1)) { /* XINT0/1 - never */ |
478 | if (cs->debug & L1_DEB_ISAC) | |
479 | debugl1(cs, "W6692 spurious XINT!"); | |
480 | } | |
481 | if (val & W_INT_D_EXI) { /* EXI */ | |
482 | exval = cs->readW6692(cs, W_D_EXIR); | |
483 | if (cs->debug & L1_DEB_WARN) | |
484 | debugl1(cs, "W6692 D_EXIR %02x", exval); | |
485 | if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) { /* Transmit underrun/collision */ | |
486 | debugl1(cs, "W6692 D-chan underrun/collision"); | |
487 | printk(KERN_WARNING "HiSax: W6692 XDUN/XCOL\n"); | |
488 | if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) | |
489 | del_timer(&cs->dbusytimer); | |
490 | if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags)) | |
491 | schedule_event(cs, D_CLEARBUSY); | |
492 | if (cs->tx_skb) { /* Restart frame */ | |
493 | skb_push(cs->tx_skb, cs->tx_cnt); | |
494 | cs->tx_cnt = 0; | |
495 | W6692_fill_fifo(cs); | |
496 | } else { | |
497 | printk(KERN_WARNING "HiSax: W6692 XDUN/XCOL no skb\n"); | |
498 | debugl1(cs, "W6692 XDUN/XCOL no skb"); | |
499 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_XRST); | |
500 | } | |
501 | } | |
502 | if (exval & W_D_EXI_RDOV) { /* RDOV */ | |
503 | debugl1(cs, "W6692 D-channel RDOV"); | |
504 | printk(KERN_WARNING "HiSax: W6692 D-RDOV\n"); | |
505 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RRST); | |
506 | } | |
507 | if (exval & W_D_EXI_TIN2) { /* TIN2 - never */ | |
508 | debugl1(cs, "W6692 spurious TIN2 interrupt"); | |
509 | } | |
510 | if (exval & W_D_EXI_MOC) { /* MOC - not supported */ | |
511 | debugl1(cs, "W6692 spurious MOC interrupt"); | |
512 | v1 = cs->readW6692(cs, W_MOSR); | |
513 | debugl1(cs, "W6692 MOSR %02x", v1); | |
514 | } | |
515 | if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */ | |
516 | v1 = cs->readW6692(cs, W_CIR); | |
517 | if (cs->debug & L1_DEB_ISAC) | |
518 | debugl1(cs, "W6692 ISC CIR=0x%02X", v1); | |
519 | if (v1 & W_CIR_ICC) { | |
520 | cs->dc.w6692.ph_state = v1 & W_CIR_COD_MASK; | |
521 | if (cs->debug & L1_DEB_ISAC) | |
522 | debugl1(cs, "ph_state_change %x", cs->dc.w6692.ph_state); | |
523 | schedule_event(cs, D_L1STATECHANGE); | |
524 | } | |
525 | if (v1 & W_CIR_SCC) { | |
526 | v1 = cs->readW6692(cs, W_SQR); | |
527 | debugl1(cs, "W6692 SCC SQR=0x%02X", v1); | |
528 | } | |
529 | } | |
530 | if (exval & W_D_EXI_WEXP) { | |
531 | debugl1(cs, "W6692 spurious WEXP interrupt!"); | |
532 | } | |
533 | if (exval & W_D_EXI_TEXP) { | |
534 | debugl1(cs, "W6692 spurious TEXP interrupt!"); | |
535 | } | |
536 | } | |
537 | if (val & W_INT_B1_EXI) { | |
538 | debugl1(cs, "W6692 B channel 1 interrupt"); | |
539 | W6692B_interrupt(cs, 0); | |
540 | } | |
541 | if (val & W_INT_B2_EXI) { | |
542 | debugl1(cs, "W6692 B channel 2 interrupt"); | |
543 | W6692B_interrupt(cs, 1); | |
544 | } | |
545 | val = cs->readW6692(cs, W_ISTA); | |
546 | if (val && icnt) { | |
547 | icnt--; | |
548 | goto StartW6692; | |
549 | } | |
550 | if (!icnt) { | |
551 | printk(KERN_WARNING "W6692 IRQ LOOP\n"); | |
552 | cs->writeW6692(cs, W_IMASK, 0xff); | |
553 | } | |
554 | spin_unlock_irqrestore(&cs->lock, flags); | |
555 | return IRQ_HANDLED; | |
556 | } | |
557 | ||
558 | static void | |
559 | W6692_l1hw(struct PStack *st, int pr, void *arg) | |
560 | { | |
561 | struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware; | |
562 | struct sk_buff *skb = arg; | |
563 | u_long flags; | |
564 | int val; | |
565 | ||
566 | switch (pr) { | |
475be4d8 JP |
567 | case (PH_DATA | REQUEST): |
568 | if (cs->debug & DEB_DLOG_HEX) | |
569 | LogFrame(cs, skb->data, skb->len); | |
570 | if (cs->debug & DEB_DLOG_VERBOSE) | |
571 | dlogframe(cs, skb, 0); | |
572 | spin_lock_irqsave(&cs->lock, flags); | |
573 | if (cs->tx_skb) { | |
574 | skb_queue_tail(&cs->sq, skb); | |
1da177e4 | 575 | #ifdef L2FRAME_DEBUG /* psa */ |
475be4d8 JP |
576 | if (cs->debug & L1_DEB_LAPD) |
577 | Logl2Frame(cs, skb, "PH_DATA Queued", 0); | |
1da177e4 | 578 | #endif |
475be4d8 | 579 | } else { |
1da177e4 LT |
580 | cs->tx_skb = skb; |
581 | cs->tx_cnt = 0; | |
582 | #ifdef L2FRAME_DEBUG /* psa */ | |
583 | if (cs->debug & L1_DEB_LAPD) | |
475be4d8 | 584 | Logl2Frame(cs, skb, "PH_DATA", 0); |
1da177e4 LT |
585 | #endif |
586 | W6692_fill_fifo(cs); | |
475be4d8 JP |
587 | } |
588 | spin_unlock_irqrestore(&cs->lock, flags); | |
589 | break; | |
590 | case (PH_PULL | INDICATION): | |
591 | spin_lock_irqsave(&cs->lock, flags); | |
592 | if (cs->tx_skb) { | |
593 | if (cs->debug & L1_DEB_WARN) | |
594 | debugl1(cs, " l2l1 tx_skb exist this shouldn't happen"); | |
595 | skb_queue_tail(&cs->sq, skb); | |
1da177e4 LT |
596 | spin_unlock_irqrestore(&cs->lock, flags); |
597 | break; | |
475be4d8 JP |
598 | } |
599 | if (cs->debug & DEB_DLOG_HEX) | |
600 | LogFrame(cs, skb->data, skb->len); | |
601 | if (cs->debug & DEB_DLOG_VERBOSE) | |
602 | dlogframe(cs, skb, 0); | |
603 | cs->tx_skb = skb; | |
604 | cs->tx_cnt = 0; | |
1da177e4 | 605 | #ifdef L2FRAME_DEBUG /* psa */ |
475be4d8 JP |
606 | if (cs->debug & L1_DEB_LAPD) |
607 | Logl2Frame(cs, skb, "PH_DATA_PULLED", 0); | |
1da177e4 | 608 | #endif |
475be4d8 JP |
609 | W6692_fill_fifo(cs); |
610 | spin_unlock_irqrestore(&cs->lock, flags); | |
611 | break; | |
612 | case (PH_PULL | REQUEST): | |
613 | #ifdef L2FRAME_DEBUG /* psa */ | |
614 | if (cs->debug & L1_DEB_LAPD) | |
615 | debugl1(cs, "-> PH_REQUEST_PULL"); | |
616 | #endif | |
617 | if (!cs->tx_skb) { | |
618 | test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags); | |
619 | st->l1.l1l2(st, PH_PULL | CONFIRM, NULL); | |
620 | } else | |
621 | test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags); | |
622 | break; | |
623 | case (HW_RESET | REQUEST): | |
624 | spin_lock_irqsave(&cs->lock, flags); | |
625 | if ((cs->dc.w6692.ph_state == W_L1IND_DRD)) { | |
1da177e4 LT |
626 | ph_command(cs, W_L1CMD_ECK); |
627 | spin_unlock_irqrestore(&cs->lock, flags); | |
475be4d8 JP |
628 | } else { |
629 | ph_command(cs, W_L1CMD_RST); | |
630 | cs->dc.w6692.ph_state = W_L1CMD_RST; | |
1da177e4 | 631 | spin_unlock_irqrestore(&cs->lock, flags); |
475be4d8 JP |
632 | W6692_new_ph(cs); |
633 | } | |
634 | break; | |
635 | case (HW_ENABLE | REQUEST): | |
636 | spin_lock_irqsave(&cs->lock, flags); | |
637 | ph_command(cs, W_L1CMD_ECK); | |
638 | spin_unlock_irqrestore(&cs->lock, flags); | |
639 | break; | |
640 | case (HW_INFO3 | REQUEST): | |
641 | spin_lock_irqsave(&cs->lock, flags); | |
642 | ph_command(cs, W_L1CMD_AR8); | |
643 | spin_unlock_irqrestore(&cs->lock, flags); | |
644 | break; | |
645 | case (HW_TESTLOOP | REQUEST): | |
646 | val = 0; | |
647 | if (1 & (long) arg) | |
648 | val |= 0x0c; | |
649 | if (2 & (long) arg) | |
650 | val |= 0x3; | |
651 | /* !!! not implemented yet */ | |
652 | break; | |
653 | case (HW_DEACTIVATE | RESPONSE): | |
654 | skb_queue_purge(&cs->rq); | |
655 | skb_queue_purge(&cs->sq); | |
656 | if (cs->tx_skb) { | |
657 | dev_kfree_skb_any(cs->tx_skb); | |
658 | cs->tx_skb = NULL; | |
659 | } | |
660 | if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) | |
661 | del_timer(&cs->dbusytimer); | |
662 | if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags)) | |
663 | schedule_event(cs, D_CLEARBUSY); | |
664 | break; | |
665 | default: | |
666 | if (cs->debug & L1_DEB_WARN) | |
667 | debugl1(cs, "W6692_l1hw unknown %04x", pr); | |
668 | break; | |
1da177e4 LT |
669 | } |
670 | } | |
671 | ||
672 | static void | |
673 | setstack_W6692(struct PStack *st, struct IsdnCardState *cs) | |
674 | { | |
675 | st->l1.l1hw = W6692_l1hw; | |
676 | } | |
677 | ||
678 | static void | |
679 | DC_Close_W6692(struct IsdnCardState *cs) | |
680 | { | |
681 | } | |
682 | ||
683 | static void | |
684 | dbusy_timer_handler(struct IsdnCardState *cs) | |
685 | { | |
686 | struct PStack *stptr; | |
687 | int rbch, star; | |
688 | u_long flags; | |
689 | ||
690 | spin_lock_irqsave(&cs->lock, flags); | |
691 | if (test_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) { | |
692 | rbch = cs->readW6692(cs, W_D_RBCH); | |
693 | star = cs->readW6692(cs, W_D_STAR); | |
694 | if (cs->debug) | |
695 | debugl1(cs, "D-Channel Busy D_RBCH %02x D_STAR %02x", | |
696 | rbch, star); | |
697 | if (star & W_D_STAR_XBZ) { /* D-Channel Busy */ | |
698 | test_and_set_bit(FLG_L1_DBUSY, &cs->HW_Flags); | |
699 | stptr = cs->stlist; | |
700 | while (stptr != NULL) { | |
701 | stptr->l1.l1l2(stptr, PH_PAUSE | INDICATION, NULL); | |
702 | stptr = stptr->next; | |
703 | } | |
704 | } else { | |
705 | /* discard frame; reset transceiver */ | |
706 | test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags); | |
707 | if (cs->tx_skb) { | |
708 | dev_kfree_skb_any(cs->tx_skb); | |
709 | cs->tx_cnt = 0; | |
710 | cs->tx_skb = NULL; | |
711 | } else { | |
712 | printk(KERN_WARNING "HiSax: W6692 D-Channel Busy no skb\n"); | |
713 | debugl1(cs, "D-Channel Busy no skb"); | |
714 | } | |
715 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_XRST); /* Transmitter reset */ | |
716 | spin_unlock_irqrestore(&cs->lock, flags); | |
7d12e780 | 717 | cs->irq_func(cs->irq, cs); |
1da177e4 LT |
718 | return; |
719 | } | |
720 | } | |
721 | spin_unlock_irqrestore(&cs->lock, flags); | |
722 | } | |
723 | ||
724 | static void | |
725 | W6692Bmode(struct BCState *bcs, int mode, int bchan) | |
726 | { | |
727 | struct IsdnCardState *cs = bcs->cs; | |
728 | ||
729 | if (cs->debug & L1_DEB_HSCX) | |
730 | debugl1(cs, "w6692 %c mode %d ichan %d", | |
731 | '1' + bchan, mode, bchan); | |
732 | bcs->mode = mode; | |
733 | bcs->channel = bchan; | |
734 | bcs->hw.w6692.bchan = bchan; | |
735 | ||
736 | switch (mode) { | |
475be4d8 JP |
737 | case (L1_MODE_NULL): |
738 | cs->BC_Write_Reg(cs, bchan, W_B_MODE, 0); | |
739 | break; | |
740 | case (L1_MODE_TRANS): | |
741 | cs->BC_Write_Reg(cs, bchan, W_B_MODE, W_B_MODE_MMS); | |
742 | break; | |
743 | case (L1_MODE_HDLC): | |
744 | cs->BC_Write_Reg(cs, bchan, W_B_MODE, W_B_MODE_ITF); | |
745 | cs->BC_Write_Reg(cs, bchan, W_B_ADM1, 0xff); | |
746 | cs->BC_Write_Reg(cs, bchan, W_B_ADM2, 0xff); | |
747 | break; | |
1da177e4 LT |
748 | } |
749 | if (mode) | |
750 | cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RRST | | |
751 | W_B_CMDR_RACT | W_B_CMDR_XRST); | |
752 | cs->BC_Write_Reg(cs, bchan, W_B_EXIM, 0x00); | |
753 | } | |
754 | ||
755 | static void | |
756 | W6692_l2l1(struct PStack *st, int pr, void *arg) | |
757 | { | |
758 | struct sk_buff *skb = arg; | |
475be4d8 | 759 | struct BCState *bcs = st->l1.bcs; |
1da177e4 LT |
760 | u_long flags; |
761 | ||
762 | switch (pr) { | |
475be4d8 JP |
763 | case (PH_DATA | REQUEST): |
764 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
765 | if (bcs->tx_skb) { | |
766 | skb_queue_tail(&bcs->squeue, skb); | |
767 | } else { | |
1da177e4 | 768 | bcs->tx_skb = skb; |
475be4d8 | 769 | test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); |
1da177e4 LT |
770 | bcs->hw.w6692.count = 0; |
771 | bcs->cs->BC_Send_Data(bcs); | |
475be4d8 JP |
772 | } |
773 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
774 | break; | |
775 | case (PH_PULL | INDICATION): | |
776 | if (bcs->tx_skb) { | |
777 | printk(KERN_WARNING "W6692_l2l1: this shouldn't happen\n"); | |
1da177e4 | 778 | break; |
475be4d8 JP |
779 | } |
780 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
781 | test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); | |
782 | bcs->tx_skb = skb; | |
783 | bcs->hw.w6692.count = 0; | |
784 | bcs->cs->BC_Send_Data(bcs); | |
785 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
786 | break; | |
787 | case (PH_PULL | REQUEST): | |
788 | if (!bcs->tx_skb) { | |
789 | test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags); | |
790 | st->l1.l1l2(st, PH_PULL | CONFIRM, NULL); | |
791 | } else | |
792 | test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags); | |
793 | break; | |
794 | case (PH_ACTIVATE | REQUEST): | |
795 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
796 | test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag); | |
797 | W6692Bmode(bcs, st->l1.mode, st->l1.bc); | |
798 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
799 | l1_msg_b(st, pr, arg); | |
800 | break; | |
801 | case (PH_DEACTIVATE | REQUEST): | |
802 | l1_msg_b(st, pr, arg); | |
803 | break; | |
804 | case (PH_DEACTIVATE | CONFIRM): | |
805 | spin_lock_irqsave(&bcs->cs->lock, flags); | |
806 | test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag); | |
807 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
808 | W6692Bmode(bcs, 0, st->l1.bc); | |
809 | spin_unlock_irqrestore(&bcs->cs->lock, flags); | |
810 | st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL); | |
811 | break; | |
1da177e4 LT |
812 | } |
813 | } | |
814 | ||
815 | static void | |
816 | close_w6692state(struct BCState *bcs) | |
817 | { | |
818 | W6692Bmode(bcs, 0, bcs->channel); | |
819 | if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) { | |
3c7208f2 JJ |
820 | kfree(bcs->hw.w6692.rcvbuf); |
821 | bcs->hw.w6692.rcvbuf = NULL; | |
822 | kfree(bcs->blog); | |
823 | bcs->blog = NULL; | |
1da177e4 LT |
824 | skb_queue_purge(&bcs->rqueue); |
825 | skb_queue_purge(&bcs->squeue); | |
826 | if (bcs->tx_skb) { | |
827 | dev_kfree_skb_any(bcs->tx_skb); | |
828 | bcs->tx_skb = NULL; | |
829 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
830 | } | |
831 | } | |
832 | } | |
833 | ||
834 | static int | |
835 | open_w6692state(struct IsdnCardState *cs, struct BCState *bcs) | |
836 | { | |
837 | if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) { | |
838 | if (!(bcs->hw.w6692.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) { | |
839 | printk(KERN_WARNING | |
840 | "HiSax: No memory for w6692.rcvbuf\n"); | |
841 | test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); | |
842 | return (1); | |
843 | } | |
844 | if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) { | |
845 | printk(KERN_WARNING | |
846 | "HiSax: No memory for bcs->blog\n"); | |
847 | test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); | |
848 | kfree(bcs->hw.w6692.rcvbuf); | |
849 | bcs->hw.w6692.rcvbuf = NULL; | |
850 | return (2); | |
851 | } | |
852 | skb_queue_head_init(&bcs->rqueue); | |
853 | skb_queue_head_init(&bcs->squeue); | |
854 | } | |
855 | bcs->tx_skb = NULL; | |
856 | test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); | |
857 | bcs->event = 0; | |
858 | bcs->hw.w6692.rcvidx = 0; | |
859 | bcs->tx_cnt = 0; | |
860 | return (0); | |
861 | } | |
862 | ||
863 | static int | |
864 | setstack_w6692(struct PStack *st, struct BCState *bcs) | |
865 | { | |
866 | bcs->channel = st->l1.bc; | |
867 | if (open_w6692state(st->l1.hardware, bcs)) | |
868 | return (-1); | |
869 | st->l1.bcs = bcs; | |
870 | st->l2.l2l1 = W6692_l2l1; | |
871 | setstack_manager(st); | |
872 | bcs->st = st; | |
873 | setstack_l1_B(st); | |
874 | return (0); | |
875 | } | |
876 | ||
672c3fd9 | 877 | static void resetW6692(struct IsdnCardState *cs) |
1da177e4 LT |
878 | { |
879 | cs->writeW6692(cs, W_D_CTL, W_D_CTL_SRST); | |
880 | mdelay(10); | |
881 | cs->writeW6692(cs, W_D_CTL, 0x00); | |
882 | mdelay(10); | |
883 | cs->writeW6692(cs, W_IMASK, 0xff); | |
884 | cs->writeW6692(cs, W_D_SAM, 0xff); | |
885 | cs->writeW6692(cs, W_D_TAM, 0xff); | |
886 | cs->writeW6692(cs, W_D_EXIM, 0x00); | |
887 | cs->writeW6692(cs, W_D_MODE, W_D_MODE_RACT); | |
888 | cs->writeW6692(cs, W_IMASK, 0x18); | |
889 | if (cs->subtyp == W6692_USR) { | |
890 | /* seems that USR implemented some power control features | |
891 | * Pin 79 is connected to the oscilator circuit so we | |
892 | * have to handle it here | |
893 | */ | |
894 | cs->writeW6692(cs, W_PCTL, 0x80); | |
895 | cs->writeW6692(cs, W_XDATA, 0x00); | |
896 | } | |
897 | } | |
898 | ||
67eb5db5 | 899 | static void initW6692(struct IsdnCardState *cs, int part) |
1da177e4 LT |
900 | { |
901 | if (part & 1) { | |
902 | cs->setstack_d = setstack_W6692; | |
903 | cs->DC_Close = DC_Close_W6692; | |
904 | cs->dbusytimer.function = (void *) dbusy_timer_handler; | |
905 | cs->dbusytimer.data = (long) cs; | |
906 | init_timer(&cs->dbusytimer); | |
907 | resetW6692(cs); | |
908 | ph_command(cs, W_L1CMD_RST); | |
909 | cs->dc.w6692.ph_state = W_L1CMD_RST; | |
910 | W6692_new_ph(cs); | |
911 | ph_command(cs, W_L1CMD_ECK); | |
912 | ||
913 | cs->bcs[0].BC_SetStack = setstack_w6692; | |
914 | cs->bcs[1].BC_SetStack = setstack_w6692; | |
915 | cs->bcs[0].BC_Close = close_w6692state; | |
916 | cs->bcs[1].BC_Close = close_w6692state; | |
917 | W6692Bmode(cs->bcs, 0, 0); | |
918 | W6692Bmode(cs->bcs + 1, 0, 0); | |
919 | } | |
920 | if (part & 2) { | |
921 | /* Reenable all IRQ */ | |
922 | cs->writeW6692(cs, W_IMASK, 0x18); | |
923 | cs->writeW6692(cs, W_D_EXIM, 0x00); | |
924 | cs->BC_Write_Reg(cs, 0, W_B_EXIM, 0x00); | |
925 | cs->BC_Write_Reg(cs, 1, W_B_EXIM, 0x00); | |
926 | /* Reset D-chan receiver and transmitter */ | |
927 | cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST); | |
928 | } | |
929 | } | |
930 | ||
931 | /* Interface functions */ | |
932 | ||
933 | static u_char | |
934 | ReadW6692(struct IsdnCardState *cs, u_char offset) | |
935 | { | |
936 | return (inb(cs->hw.w6692.iobase + offset)); | |
937 | } | |
938 | ||
939 | static void | |
940 | WriteW6692(struct IsdnCardState *cs, u_char offset, u_char value) | |
941 | { | |
942 | outb(value, cs->hw.w6692.iobase + offset); | |
943 | } | |
944 | ||
945 | static void | |
475be4d8 | 946 | ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) |
1da177e4 LT |
947 | { |
948 | insb(cs->hw.w6692.iobase + W_D_RFIFO, data, size); | |
949 | } | |
950 | ||
951 | static void | |
475be4d8 | 952 | WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) |
1da177e4 LT |
953 | { |
954 | outsb(cs->hw.w6692.iobase + W_D_XFIFO, data, size); | |
955 | } | |
956 | ||
957 | static u_char | |
958 | ReadW6692B(struct IsdnCardState *cs, int bchan, u_char offset) | |
959 | { | |
960 | return (inb(cs->hw.w6692.iobase + (bchan ? 0x40 : 0) + offset)); | |
961 | } | |
962 | ||
963 | static void | |
964 | WriteW6692B(struct IsdnCardState *cs, int bchan, u_char offset, u_char value) | |
965 | { | |
966 | outb(value, cs->hw.w6692.iobase + (bchan ? 0x40 : 0) + offset); | |
967 | } | |
968 | ||
969 | static int | |
970 | w6692_card_msg(struct IsdnCardState *cs, int mt, void *arg) | |
971 | { | |
972 | switch (mt) { | |
475be4d8 JP |
973 | case CARD_RESET: |
974 | resetW6692(cs); | |
975 | return (0); | |
976 | case CARD_RELEASE: | |
977 | cs->writeW6692(cs, W_IMASK, 0xff); | |
978 | release_region(cs->hw.w6692.iobase, 256); | |
979 | if (cs->subtyp == W6692_USR) { | |
980 | cs->writeW6692(cs, W_XDATA, 0x04); | |
981 | } | |
982 | return (0); | |
983 | case CARD_INIT: | |
984 | initW6692(cs, 3); | |
985 | return (0); | |
986 | case CARD_TEST: | |
987 | return (0); | |
1da177e4 LT |
988 | } |
989 | return (0); | |
990 | } | |
991 | ||
475be4d8 | 992 | static int id_idx; |
1da177e4 | 993 | |
ed5a84cd | 994 | static struct pci_dev *dev_w6692 = NULL; |
1da177e4 | 995 | |
ed5a84cd | 996 | int setup_w6692(struct IsdnCard *card) |
1da177e4 LT |
997 | { |
998 | struct IsdnCardState *cs = card->cs; | |
999 | char tmp[64]; | |
1000 | u_char found = 0; | |
1001 | u_char pci_irq = 0; | |
1002 | u_int pci_ioaddr = 0; | |
1003 | ||
1004 | strcpy(tmp, w6692_revision); | |
1005 | printk(KERN_INFO "HiSax: W6692 driver Rev. %s\n", HiSax_getrev(tmp)); | |
1006 | if (cs->typ != ISDN_CTYPE_W6692) | |
1007 | return (0); | |
bfc7c89f | 1008 | |
1da177e4 | 1009 | while (id_list[id_idx].vendor_id) { |
41a68a74 | 1010 | dev_w6692 = hisax_find_pci_device(id_list[id_idx].vendor_id, |
475be4d8 JP |
1011 | id_list[id_idx].device_id, |
1012 | dev_w6692); | |
1da177e4 LT |
1013 | if (dev_w6692) { |
1014 | if (pci_enable_device(dev_w6692)) | |
1015 | continue; | |
1016 | cs->subtyp = id_idx; | |
1017 | break; | |
1018 | } | |
1019 | id_idx++; | |
1020 | } | |
1021 | if (dev_w6692) { | |
1022 | found = 1; | |
1023 | pci_irq = dev_w6692->irq; | |
1024 | /* I think address 0 is allways the configuration area */ | |
1025 | /* and address 1 is the real IO space KKe 03.09.99 */ | |
1026 | pci_ioaddr = pci_resource_start(dev_w6692, 1); | |
1027 | /* USR ISDN PCI card TA need some special handling */ | |
1028 | if (cs->subtyp == W6692_WINBOND) { | |
1029 | if ((W6692_SV_USR == dev_w6692->subsystem_vendor) && | |
1030 | (W6692_SD_USR == dev_w6692->subsystem_device)) { | |
1031 | cs->subtyp = W6692_USR; | |
1032 | } | |
1033 | } | |
1034 | } | |
1035 | if (!found) { | |
1036 | printk(KERN_WARNING "W6692: No PCI card found\n"); | |
1037 | return (0); | |
1038 | } | |
1039 | cs->irq = pci_irq; | |
1040 | if (!cs->irq) { | |
1041 | printk(KERN_WARNING "W6692: No IRQ for PCI card found\n"); | |
1042 | return (0); | |
1043 | } | |
1044 | if (!pci_ioaddr) { | |
1045 | printk(KERN_WARNING "W6692: NO I/O Base Address found\n"); | |
1046 | return (0); | |
1047 | } | |
1048 | cs->hw.w6692.iobase = pci_ioaddr; | |
1049 | printk(KERN_INFO "Found: %s %s, I/O base: 0x%x, irq: %d\n", | |
1050 | id_list[cs->subtyp].vendor_name, id_list[cs->subtyp].card_name, | |
1051 | pci_ioaddr, pci_irq); | |
1052 | if (!request_region(cs->hw.w6692.iobase, 256, id_list[cs->subtyp].card_name)) { | |
1053 | printk(KERN_WARNING | |
1054 | "HiSax: %s I/O ports %x-%x already in use\n", | |
1055 | id_list[cs->subtyp].card_name, | |
1056 | cs->hw.w6692.iobase, | |
1057 | cs->hw.w6692.iobase + 255); | |
1058 | return (0); | |
1059 | } | |
1da177e4 LT |
1060 | |
1061 | printk(KERN_INFO | |
1062 | "HiSax: %s config irq:%d I/O:%x\n", | |
1063 | id_list[cs->subtyp].card_name, cs->irq, | |
1064 | cs->hw.w6692.iobase); | |
1065 | ||
c4028958 | 1066 | INIT_WORK(&cs->tqueue, W6692_bh); |
1da177e4 LT |
1067 | cs->readW6692 = &ReadW6692; |
1068 | cs->writeW6692 = &WriteW6692; | |
1069 | cs->readisacfifo = &ReadISACfifo; | |
1070 | cs->writeisacfifo = &WriteISACfifo; | |
1071 | cs->BC_Read_Reg = &ReadW6692B; | |
1072 | cs->BC_Write_Reg = &WriteW6692B; | |
1073 | cs->BC_Send_Data = &W6692B_fill_fifo; | |
1074 | cs->cardmsg = &w6692_card_msg; | |
1075 | cs->irq_func = &W6692_interrupt; | |
9ba02bec | 1076 | cs->irq_flags |= IRQF_SHARED; |
1da177e4 LT |
1077 | W6692Version(cs, "W6692:"); |
1078 | printk(KERN_INFO "W6692 ISTA=0x%X\n", ReadW6692(cs, W_ISTA)); | |
1079 | printk(KERN_INFO "W6692 IMASK=0x%X\n", ReadW6692(cs, W_IMASK)); | |
1080 | printk(KERN_INFO "W6692 D_EXIR=0x%X\n", ReadW6692(cs, W_D_EXIR)); | |
1081 | printk(KERN_INFO "W6692 D_EXIM=0x%X\n", ReadW6692(cs, W_D_EXIM)); | |
1082 | printk(KERN_INFO "W6692 D_RSTA=0x%X\n", ReadW6692(cs, W_D_RSTA)); | |
1083 | return (1); | |
1084 | } |