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1da177e4 LT |
1 | /* |
2 | * pcilynx.c - Texas Instruments PCILynx driver | |
3 | * Copyright (C) 1999,2000 Andreas Bombe <andreas.bombe@munich.netsurf.de>, | |
4 | * Stephan Linz <linz@mazet.de> | |
5 | * Manfred Weihs <weihs@ict.tuwien.ac.at> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software Foundation, | |
19 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | /* | |
23 | * Contributions: | |
24 | * | |
25 | * Manfred Weihs <weihs@ict.tuwien.ac.at> | |
26 | * reading bus info block (containing GUID) from serial | |
27 | * eeprom via i2c and storing it in config ROM | |
28 | * Reworked code for initiating bus resets | |
29 | * (long, short, with or without hold-off) | |
30 | * Enhancements in async and iso send code | |
31 | */ | |
32 | ||
1da177e4 LT |
33 | #include <linux/kernel.h> |
34 | #include <linux/slab.h> | |
35 | #include <linux/interrupt.h> | |
36 | #include <linux/wait.h> | |
37 | #include <linux/errno.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/moduleparam.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/pci.h> | |
42 | #include <linux/fs.h> | |
43 | #include <linux/poll.h> | |
44 | #include <linux/kdev_t.h> | |
2554bd2a | 45 | #include <linux/dma-mapping.h> |
1da177e4 LT |
46 | #include <asm/byteorder.h> |
47 | #include <asm/atomic.h> | |
48 | #include <asm/io.h> | |
49 | #include <asm/uaccess.h> | |
50 | #include <asm/irq.h> | |
51 | ||
52 | #include "csr1212.h" | |
53 | #include "ieee1394.h" | |
54 | #include "ieee1394_types.h" | |
55 | #include "hosts.h" | |
56 | #include "ieee1394_core.h" | |
57 | #include "highlevel.h" | |
58 | #include "pcilynx.h" | |
59 | ||
60 | #include <linux/i2c.h> | |
61 | #include <linux/i2c-algo-bit.h> | |
62 | ||
63 | /* print general (card independent) information */ | |
64 | #define PRINT_G(level, fmt, args...) printk(level "pcilynx: " fmt "\n" , ## args) | |
65 | /* print card specific information */ | |
66 | #define PRINT(level, card, fmt, args...) printk(level "pcilynx%d: " fmt "\n" , card , ## args) | |
67 | ||
68 | #ifdef CONFIG_IEEE1394_VERBOSEDEBUG | |
69 | #define PRINT_GD(level, fmt, args...) printk(level "pcilynx: " fmt "\n" , ## args) | |
70 | #define PRINTD(level, card, fmt, args...) printk(level "pcilynx%d: " fmt "\n" , card , ## args) | |
71 | #else | |
72 | #define PRINT_GD(level, fmt, args...) do {} while (0) | |
73 | #define PRINTD(level, card, fmt, args...) do {} while (0) | |
74 | #endif | |
75 | ||
76 | ||
77 | /* Module Parameters */ | |
1934b8b6 | 78 | static int skip_eeprom; |
1da177e4 LT |
79 | module_param(skip_eeprom, int, 0444); |
80 | MODULE_PARM_DESC(skip_eeprom, "Use generic bus info block instead of serial eeprom (default = 0)."); | |
81 | ||
82 | ||
83 | static struct hpsb_host_driver lynx_driver; | |
84 | static unsigned int card_id; | |
85 | ||
86 | ||
87 | ||
88 | /* | |
89 | * I2C stuff | |
90 | */ | |
91 | ||
92 | /* the i2c stuff was inspired by i2c-philips-par.c */ | |
93 | ||
94 | static void bit_setscl(void *data, int state) | |
95 | { | |
96 | if (state) { | |
97 | ((struct ti_lynx *) data)->i2c_driven_state |= 0x00000040; | |
98 | } else { | |
99 | ((struct ti_lynx *) data)->i2c_driven_state &= ~0x00000040; | |
100 | } | |
101 | reg_write((struct ti_lynx *) data, SERIAL_EEPROM_CONTROL, ((struct ti_lynx *) data)->i2c_driven_state); | |
102 | } | |
103 | ||
104 | static void bit_setsda(void *data, int state) | |
105 | { | |
106 | if (state) { | |
107 | ((struct ti_lynx *) data)->i2c_driven_state |= 0x00000010; | |
108 | } else { | |
109 | ((struct ti_lynx *) data)->i2c_driven_state &= ~0x00000010; | |
110 | } | |
111 | reg_write((struct ti_lynx *) data, SERIAL_EEPROM_CONTROL, ((struct ti_lynx *) data)->i2c_driven_state); | |
112 | } | |
113 | ||
114 | static int bit_getscl(void *data) | |
115 | { | |
116 | return reg_read((struct ti_lynx *) data, SERIAL_EEPROM_CONTROL) & 0x00000040; | |
117 | } | |
118 | ||
119 | static int bit_getsda(void *data) | |
120 | { | |
121 | return reg_read((struct ti_lynx *) data, SERIAL_EEPROM_CONTROL) & 0x00000010; | |
122 | } | |
123 | ||
1da177e4 LT |
124 | static struct i2c_algo_bit_data bit_data = { |
125 | .setsda = bit_setsda, | |
126 | .setscl = bit_setscl, | |
127 | .getsda = bit_getsda, | |
128 | .getscl = bit_getscl, | |
129 | .udelay = 5, | |
1da177e4 LT |
130 | .timeout = 100, |
131 | }; | |
132 | ||
1da177e4 LT |
133 | |
134 | /* | |
135 | * PCL handling functions. | |
136 | */ | |
137 | ||
138 | static pcl_t alloc_pcl(struct ti_lynx *lynx) | |
139 | { | |
140 | u8 m; | |
141 | int i, j; | |
142 | ||
143 | spin_lock(&lynx->lock); | |
144 | /* FIXME - use ffz() to make this readable */ | |
145 | for (i = 0; i < (LOCALRAM_SIZE / 1024); i++) { | |
146 | m = lynx->pcl_bmap[i]; | |
147 | for (j = 0; j < 8; j++) { | |
148 | if (m & 1<<j) { | |
149 | continue; | |
150 | } | |
151 | m |= 1<<j; | |
152 | lynx->pcl_bmap[i] = m; | |
153 | spin_unlock(&lynx->lock); | |
154 | return 8 * i + j; | |
155 | } | |
156 | } | |
157 | spin_unlock(&lynx->lock); | |
158 | ||
159 | return -1; | |
160 | } | |
161 | ||
162 | ||
163 | #if 0 | |
164 | static void free_pcl(struct ti_lynx *lynx, pcl_t pclid) | |
165 | { | |
166 | int off, bit; | |
167 | ||
168 | off = pclid / 8; | |
169 | bit = pclid % 8; | |
170 | ||
171 | if (pclid < 0) { | |
172 | return; | |
173 | } | |
174 | ||
175 | spin_lock(&lynx->lock); | |
176 | if (lynx->pcl_bmap[off] & 1<<bit) { | |
177 | lynx->pcl_bmap[off] &= ~(1<<bit); | |
178 | } else { | |
179 | PRINT(KERN_ERR, lynx->id, | |
180 | "attempted to free unallocated PCL %d", pclid); | |
181 | } | |
182 | spin_unlock(&lynx->lock); | |
183 | } | |
184 | ||
185 | /* functions useful for debugging */ | |
186 | static void pretty_print_pcl(const struct ti_pcl *pcl) | |
187 | { | |
188 | int i; | |
189 | ||
190 | printk("PCL next %08x, userdata %08x, status %08x, remtrans %08x, nextbuf %08x\n", | |
191 | pcl->next, pcl->user_data, pcl->pcl_status, | |
192 | pcl->remaining_transfer_count, pcl->next_data_buffer); | |
193 | ||
194 | printk("PCL"); | |
195 | for (i=0; i<13; i++) { | |
196 | printk(" c%x:%08x d%x:%08x", | |
197 | i, pcl->buffer[i].control, i, pcl->buffer[i].pointer); | |
198 | if (!(i & 0x3) && (i != 12)) printk("\nPCL"); | |
199 | } | |
200 | printk("\n"); | |
201 | } | |
202 | ||
203 | static void print_pcl(const struct ti_lynx *lynx, pcl_t pclid) | |
204 | { | |
205 | struct ti_pcl pcl; | |
206 | ||
207 | get_pcl(lynx, pclid, &pcl); | |
208 | pretty_print_pcl(&pcl); | |
209 | } | |
210 | #endif | |
211 | ||
212 | ||
213 | ||
214 | /*********************************** | |
215 | * IEEE-1394 functionality section * | |
216 | ***********************************/ | |
217 | ||
218 | ||
219 | static int get_phy_reg(struct ti_lynx *lynx, int addr) | |
220 | { | |
221 | int retval; | |
222 | int i = 0; | |
223 | ||
224 | unsigned long flags; | |
225 | ||
226 | if (addr > 15) { | |
227 | PRINT(KERN_ERR, lynx->id, | |
228 | "%s: PHY register address %d out of range", | |
b1ce1fd7 | 229 | __func__, addr); |
1da177e4 LT |
230 | return -1; |
231 | } | |
232 | ||
233 | spin_lock_irqsave(&lynx->phy_reg_lock, flags); | |
234 | ||
235 | reg_write(lynx, LINK_PHY, LINK_PHY_READ | LINK_PHY_ADDR(addr)); | |
236 | do { | |
237 | retval = reg_read(lynx, LINK_PHY); | |
238 | ||
239 | if (i > 10000) { | |
240 | PRINT(KERN_ERR, lynx->id, "%s: runaway loop, aborting", | |
b1ce1fd7 | 241 | __func__); |
1da177e4 LT |
242 | retval = -1; |
243 | break; | |
244 | } | |
245 | i++; | |
246 | } while ((retval & 0xf00) != LINK_PHY_RADDR(addr)); | |
247 | ||
248 | reg_write(lynx, LINK_INT_STATUS, LINK_INT_PHY_REG_RCVD); | |
249 | spin_unlock_irqrestore(&lynx->phy_reg_lock, flags); | |
250 | ||
251 | if (retval != -1) { | |
252 | return retval & 0xff; | |
253 | } else { | |
254 | return -1; | |
255 | } | |
256 | } | |
257 | ||
258 | static int set_phy_reg(struct ti_lynx *lynx, int addr, int val) | |
259 | { | |
260 | unsigned long flags; | |
261 | ||
262 | if (addr > 15) { | |
263 | PRINT(KERN_ERR, lynx->id, | |
b1ce1fd7 | 264 | "%s: PHY register address %d out of range", __func__, addr); |
1da177e4 LT |
265 | return -1; |
266 | } | |
267 | ||
268 | if (val > 0xff) { | |
269 | PRINT(KERN_ERR, lynx->id, | |
b1ce1fd7 | 270 | "%s: PHY register value %d out of range", __func__, val); |
1da177e4 LT |
271 | return -1; |
272 | } | |
273 | ||
274 | spin_lock_irqsave(&lynx->phy_reg_lock, flags); | |
275 | ||
276 | reg_write(lynx, LINK_PHY, LINK_PHY_WRITE | LINK_PHY_ADDR(addr) | |
277 | | LINK_PHY_WDATA(val)); | |
278 | ||
279 | spin_unlock_irqrestore(&lynx->phy_reg_lock, flags); | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
284 | static int sel_phy_reg_page(struct ti_lynx *lynx, int page) | |
285 | { | |
286 | int reg; | |
287 | ||
288 | if (page > 7) { | |
289 | PRINT(KERN_ERR, lynx->id, | |
b1ce1fd7 | 290 | "%s: PHY page %d out of range", __func__, page); |
1da177e4 LT |
291 | return -1; |
292 | } | |
293 | ||
294 | reg = get_phy_reg(lynx, 7); | |
295 | if (reg != -1) { | |
296 | reg &= 0x1f; | |
297 | reg |= (page << 5); | |
298 | set_phy_reg(lynx, 7, reg); | |
299 | return 0; | |
300 | } else { | |
301 | return -1; | |
302 | } | |
303 | } | |
304 | ||
305 | #if 0 /* not needed at this time */ | |
306 | static int sel_phy_reg_port(struct ti_lynx *lynx, int port) | |
307 | { | |
308 | int reg; | |
309 | ||
310 | if (port > 15) { | |
311 | PRINT(KERN_ERR, lynx->id, | |
b1ce1fd7 | 312 | "%s: PHY port %d out of range", __func__, port); |
1da177e4 LT |
313 | return -1; |
314 | } | |
315 | ||
316 | reg = get_phy_reg(lynx, 7); | |
317 | if (reg != -1) { | |
318 | reg &= 0xf0; | |
319 | reg |= port; | |
320 | set_phy_reg(lynx, 7, reg); | |
321 | return 0; | |
322 | } else { | |
323 | return -1; | |
324 | } | |
325 | } | |
326 | #endif | |
327 | ||
328 | static u32 get_phy_vendorid(struct ti_lynx *lynx) | |
329 | { | |
330 | u32 pvid = 0; | |
331 | sel_phy_reg_page(lynx, 1); | |
332 | pvid |= (get_phy_reg(lynx, 10) << 16); | |
333 | pvid |= (get_phy_reg(lynx, 11) << 8); | |
334 | pvid |= get_phy_reg(lynx, 12); | |
335 | PRINT(KERN_INFO, lynx->id, "PHY vendor id 0x%06x", pvid); | |
336 | return pvid; | |
337 | } | |
338 | ||
339 | static u32 get_phy_productid(struct ti_lynx *lynx) | |
340 | { | |
341 | u32 id = 0; | |
342 | sel_phy_reg_page(lynx, 1); | |
343 | id |= (get_phy_reg(lynx, 13) << 16); | |
344 | id |= (get_phy_reg(lynx, 14) << 8); | |
345 | id |= get_phy_reg(lynx, 15); | |
346 | PRINT(KERN_INFO, lynx->id, "PHY product id 0x%06x", id); | |
347 | return id; | |
348 | } | |
349 | ||
350 | static quadlet_t generate_own_selfid(struct ti_lynx *lynx, | |
351 | struct hpsb_host *host) | |
352 | { | |
353 | quadlet_t lsid; | |
354 | char phyreg[7]; | |
355 | int i; | |
356 | ||
357 | phyreg[0] = lynx->phy_reg0; | |
358 | for (i = 1; i < 7; i++) { | |
359 | phyreg[i] = get_phy_reg(lynx, i); | |
360 | } | |
361 | ||
362 | /* FIXME? We assume a TSB21LV03A phy here. This code doesn't support | |
363 | more than 3 ports on the PHY anyway. */ | |
364 | ||
365 | lsid = 0x80400000 | ((phyreg[0] & 0xfc) << 22); | |
366 | lsid |= (phyreg[1] & 0x3f) << 16; /* gap count */ | |
367 | lsid |= (phyreg[2] & 0xc0) << 8; /* max speed */ | |
368 | if (!hpsb_disable_irm) | |
369 | lsid |= (phyreg[6] & 0x01) << 11; /* contender (phy dependent) */ | |
370 | /* lsid |= 1 << 11; *//* set contender (hack) */ | |
371 | lsid |= (phyreg[6] & 0x10) >> 3; /* initiated reset */ | |
372 | ||
373 | for (i = 0; i < (phyreg[2] & 0xf); i++) { /* ports */ | |
374 | if (phyreg[3 + i] & 0x4) { | |
375 | lsid |= (((phyreg[3 + i] & 0x8) | 0x10) >> 3) | |
376 | << (6 - i*2); | |
377 | } else { | |
378 | lsid |= 1 << (6 - i*2); | |
379 | } | |
380 | } | |
381 | ||
382 | cpu_to_be32s(&lsid); | |
383 | PRINT(KERN_DEBUG, lynx->id, "generated own selfid 0x%x", lsid); | |
384 | return lsid; | |
385 | } | |
386 | ||
387 | static void handle_selfid(struct ti_lynx *lynx, struct hpsb_host *host) | |
388 | { | |
389 | quadlet_t *q = lynx->rcv_page; | |
390 | int phyid, isroot, size; | |
391 | quadlet_t lsid = 0; | |
392 | int i; | |
393 | ||
394 | if (lynx->phy_reg0 == -1 || lynx->selfid_size == -1) return; | |
395 | ||
396 | size = lynx->selfid_size; | |
397 | phyid = lynx->phy_reg0; | |
398 | ||
399 | i = (size > 16 ? 16 : size) / 4 - 1; | |
400 | while (i >= 0) { | |
401 | cpu_to_be32s(&q[i]); | |
402 | i--; | |
403 | } | |
404 | ||
405 | if (!lynx->phyic.reg_1394a) { | |
406 | lsid = generate_own_selfid(lynx, host); | |
407 | } | |
408 | ||
409 | isroot = (phyid & 2) != 0; | |
410 | phyid >>= 2; | |
411 | PRINT(KERN_INFO, lynx->id, "SelfID process finished (phyid %d, %s)", | |
412 | phyid, (isroot ? "root" : "not root")); | |
413 | reg_write(lynx, LINK_ID, (0xffc0 | phyid) << 16); | |
414 | ||
415 | if (!lynx->phyic.reg_1394a && !size) { | |
416 | hpsb_selfid_received(host, lsid); | |
417 | } | |
418 | ||
419 | while (size > 0) { | |
420 | struct selfid *sid = (struct selfid *)q; | |
421 | ||
422 | if (!lynx->phyic.reg_1394a && !sid->extended | |
423 | && (sid->phy_id == (phyid + 1))) { | |
424 | hpsb_selfid_received(host, lsid); | |
425 | } | |
426 | ||
427 | if (q[0] == ~q[1]) { | |
428 | PRINT(KERN_DEBUG, lynx->id, "SelfID packet 0x%x rcvd", | |
429 | q[0]); | |
430 | hpsb_selfid_received(host, q[0]); | |
431 | } else { | |
432 | PRINT(KERN_INFO, lynx->id, | |
433 | "inconsistent selfid 0x%x/0x%x", q[0], q[1]); | |
434 | } | |
435 | q += 2; | |
436 | size -= 8; | |
437 | } | |
438 | ||
439 | if (!lynx->phyic.reg_1394a && isroot && phyid != 0) { | |
440 | hpsb_selfid_received(host, lsid); | |
441 | } | |
442 | ||
443 | hpsb_selfid_complete(host, phyid, isroot); | |
444 | ||
445 | if (host->in_bus_reset) return; /* in bus reset again */ | |
446 | ||
447 | if (isroot) reg_set_bits(lynx, LINK_CONTROL, LINK_CONTROL_CYCMASTER); //FIXME: I do not think, we need this here | |
448 | reg_set_bits(lynx, LINK_CONTROL, | |
449 | LINK_CONTROL_RCV_CMP_VALID | LINK_CONTROL_TX_ASYNC_EN | |
450 | | LINK_CONTROL_RX_ASYNC_EN | LINK_CONTROL_CYCTIMEREN); | |
451 | } | |
452 | ||
453 | ||
454 | ||
455 | /* This must be called with the respective queue_lock held. */ | |
456 | static void send_next(struct ti_lynx *lynx, int what) | |
457 | { | |
458 | struct ti_pcl pcl; | |
459 | struct lynx_send_data *d; | |
460 | struct hpsb_packet *packet; | |
461 | ||
53c96b41 | 462 | #if 0 /* has been removed from ieee1394 core */ |
1da177e4 | 463 | d = (what == hpsb_iso ? &lynx->iso_send : &lynx->async); |
53c96b41 SR |
464 | #else |
465 | d = &lynx->async; | |
466 | #endif | |
1da177e4 LT |
467 | if (!list_empty(&d->pcl_queue)) { |
468 | PRINT(KERN_ERR, lynx->id, "trying to queue a new packet in nonempty fifo"); | |
469 | BUG(); | |
470 | } | |
471 | ||
472 | packet = driver_packet(d->queue.next); | |
473 | list_move_tail(&packet->driver_list, &d->pcl_queue); | |
474 | ||
475 | d->header_dma = pci_map_single(lynx->dev, packet->header, | |
476 | packet->header_size, PCI_DMA_TODEVICE); | |
477 | if (packet->data_size) { | |
478 | d->data_dma = pci_map_single(lynx->dev, packet->data, | |
479 | packet->data_size, | |
480 | PCI_DMA_TODEVICE); | |
481 | } else { | |
482 | d->data_dma = 0; | |
483 | } | |
484 | ||
485 | pcl.next = PCL_NEXT_INVALID; | |
486 | pcl.async_error_next = PCL_NEXT_INVALID; | |
487 | pcl.pcl_status = 0; | |
488 | pcl.buffer[0].control = packet->speed_code << 14 | packet->header_size; | |
489 | #ifndef __BIG_ENDIAN | |
490 | pcl.buffer[0].control |= PCL_BIGENDIAN; | |
491 | #endif | |
492 | pcl.buffer[0].pointer = d->header_dma; | |
493 | pcl.buffer[1].control = PCL_LAST_BUFF | packet->data_size; | |
494 | pcl.buffer[1].pointer = d->data_dma; | |
495 | ||
496 | switch (packet->type) { | |
497 | case hpsb_async: | |
498 | pcl.buffer[0].control |= PCL_CMD_XMT; | |
499 | break; | |
53c96b41 | 500 | #if 0 /* has been removed from ieee1394 core */ |
1da177e4 LT |
501 | case hpsb_iso: |
502 | pcl.buffer[0].control |= PCL_CMD_XMT | PCL_ISOMODE; | |
503 | break; | |
53c96b41 | 504 | #endif |
1da177e4 LT |
505 | case hpsb_raw: |
506 | pcl.buffer[0].control |= PCL_CMD_UNFXMT; | |
507 | break; | |
508 | } | |
509 | ||
510 | put_pcl(lynx, d->pcl, &pcl); | |
511 | run_pcl(lynx, d->pcl_start, d->channel); | |
512 | } | |
513 | ||
514 | ||
515 | /* called from subsystem core */ | |
516 | static int lynx_transmit(struct hpsb_host *host, struct hpsb_packet *packet) | |
517 | { | |
518 | struct ti_lynx *lynx = host->hostdata; | |
519 | struct lynx_send_data *d; | |
520 | unsigned long flags; | |
521 | ||
522 | if (packet->data_size >= 4096) { | |
523 | PRINT(KERN_ERR, lynx->id, "transmit packet data too big (%Zd)", | |
524 | packet->data_size); | |
525 | return -EOVERFLOW; | |
526 | } | |
527 | ||
528 | switch (packet->type) { | |
529 | case hpsb_async: | |
530 | case hpsb_raw: | |
531 | d = &lynx->async; | |
532 | break; | |
53c96b41 | 533 | #if 0 /* has been removed from ieee1394 core */ |
1da177e4 LT |
534 | case hpsb_iso: |
535 | d = &lynx->iso_send; | |
536 | break; | |
53c96b41 | 537 | #endif |
1da177e4 LT |
538 | default: |
539 | PRINT(KERN_ERR, lynx->id, "invalid packet type %d", | |
540 | packet->type); | |
541 | return -EINVAL; | |
542 | } | |
543 | ||
544 | if (packet->tcode == TCODE_WRITEQ | |
545 | || packet->tcode == TCODE_READQ_RESPONSE) { | |
546 | cpu_to_be32s(&packet->header[3]); | |
547 | } | |
548 | ||
549 | spin_lock_irqsave(&d->queue_lock, flags); | |
550 | ||
551 | list_add_tail(&packet->driver_list, &d->queue); | |
552 | if (list_empty(&d->pcl_queue)) | |
553 | send_next(lynx, packet->type); | |
554 | ||
555 | spin_unlock_irqrestore(&d->queue_lock, flags); | |
556 | ||
557 | return 0; | |
558 | } | |
559 | ||
560 | ||
561 | /* called from subsystem core */ | |
562 | static int lynx_devctl(struct hpsb_host *host, enum devctl_cmd cmd, int arg) | |
563 | { | |
564 | struct ti_lynx *lynx = host->hostdata; | |
565 | int retval = 0; | |
566 | struct hpsb_packet *packet; | |
567 | LIST_HEAD(packet_list); | |
568 | unsigned long flags; | |
569 | int phy_reg; | |
570 | ||
571 | switch (cmd) { | |
572 | case RESET_BUS: | |
573 | if (reg_read(lynx, LINK_INT_STATUS) & LINK_INT_PHY_BUSRESET) { | |
574 | retval = 0; | |
575 | break; | |
576 | } | |
577 | ||
578 | switch (arg) { | |
579 | case SHORT_RESET: | |
580 | if (lynx->phyic.reg_1394a) { | |
581 | phy_reg = get_phy_reg(lynx, 5); | |
582 | if (phy_reg == -1) { | |
583 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
584 | retval = -1; | |
585 | break; | |
586 | } | |
587 | phy_reg |= 0x40; | |
588 | ||
589 | PRINT(KERN_INFO, lynx->id, "resetting bus (short bus reset) on request"); | |
590 | ||
591 | lynx->selfid_size = -1; | |
592 | lynx->phy_reg0 = -1; | |
593 | set_phy_reg(lynx, 5, phy_reg); /* set ISBR */ | |
594 | break; | |
595 | } else { | |
596 | PRINT(KERN_INFO, lynx->id, "cannot do short bus reset, because of old phy"); | |
597 | /* fall through to long bus reset */ | |
598 | } | |
599 | case LONG_RESET: | |
600 | phy_reg = get_phy_reg(lynx, 1); | |
601 | if (phy_reg == -1) { | |
602 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
603 | retval = -1; | |
604 | break; | |
605 | } | |
606 | phy_reg |= 0x40; | |
607 | ||
608 | PRINT(KERN_INFO, lynx->id, "resetting bus (long bus reset) on request"); | |
609 | ||
610 | lynx->selfid_size = -1; | |
611 | lynx->phy_reg0 = -1; | |
612 | set_phy_reg(lynx, 1, phy_reg); /* clear RHB, set IBR */ | |
613 | break; | |
614 | case SHORT_RESET_NO_FORCE_ROOT: | |
615 | if (lynx->phyic.reg_1394a) { | |
616 | phy_reg = get_phy_reg(lynx, 1); | |
617 | if (phy_reg == -1) { | |
618 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
619 | retval = -1; | |
620 | break; | |
621 | } | |
622 | if (phy_reg & 0x80) { | |
623 | phy_reg &= ~0x80; | |
624 | set_phy_reg(lynx, 1, phy_reg); /* clear RHB */ | |
625 | } | |
626 | ||
627 | phy_reg = get_phy_reg(lynx, 5); | |
628 | if (phy_reg == -1) { | |
629 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
630 | retval = -1; | |
631 | break; | |
632 | } | |
633 | phy_reg |= 0x40; | |
634 | ||
635 | PRINT(KERN_INFO, lynx->id, "resetting bus (short bus reset, no force_root) on request"); | |
636 | ||
637 | lynx->selfid_size = -1; | |
638 | lynx->phy_reg0 = -1; | |
639 | set_phy_reg(lynx, 5, phy_reg); /* set ISBR */ | |
640 | break; | |
641 | } else { | |
642 | PRINT(KERN_INFO, lynx->id, "cannot do short bus reset, because of old phy"); | |
643 | /* fall through to long bus reset */ | |
644 | } | |
645 | case LONG_RESET_NO_FORCE_ROOT: | |
646 | phy_reg = get_phy_reg(lynx, 1); | |
647 | if (phy_reg == -1) { | |
648 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
649 | retval = -1; | |
650 | break; | |
651 | } | |
652 | phy_reg &= ~0x80; | |
653 | phy_reg |= 0x40; | |
654 | ||
655 | PRINT(KERN_INFO, lynx->id, "resetting bus (long bus reset, no force_root) on request"); | |
656 | ||
657 | lynx->selfid_size = -1; | |
658 | lynx->phy_reg0 = -1; | |
659 | set_phy_reg(lynx, 1, phy_reg); /* clear RHB, set IBR */ | |
660 | break; | |
661 | case SHORT_RESET_FORCE_ROOT: | |
662 | if (lynx->phyic.reg_1394a) { | |
663 | phy_reg = get_phy_reg(lynx, 1); | |
664 | if (phy_reg == -1) { | |
665 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
666 | retval = -1; | |
667 | break; | |
668 | } | |
669 | if (!(phy_reg & 0x80)) { | |
670 | phy_reg |= 0x80; | |
671 | set_phy_reg(lynx, 1, phy_reg); /* set RHB */ | |
672 | } | |
673 | ||
674 | phy_reg = get_phy_reg(lynx, 5); | |
675 | if (phy_reg == -1) { | |
676 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
677 | retval = -1; | |
678 | break; | |
679 | } | |
680 | phy_reg |= 0x40; | |
681 | ||
682 | PRINT(KERN_INFO, lynx->id, "resetting bus (short bus reset, force_root set) on request"); | |
683 | ||
684 | lynx->selfid_size = -1; | |
685 | lynx->phy_reg0 = -1; | |
686 | set_phy_reg(lynx, 5, phy_reg); /* set ISBR */ | |
687 | break; | |
688 | } else { | |
689 | PRINT(KERN_INFO, lynx->id, "cannot do short bus reset, because of old phy"); | |
690 | /* fall through to long bus reset */ | |
691 | } | |
692 | case LONG_RESET_FORCE_ROOT: | |
693 | phy_reg = get_phy_reg(lynx, 1); | |
694 | if (phy_reg == -1) { | |
695 | PRINT(KERN_ERR, lynx->id, "cannot reset bus, because read phy reg failed"); | |
696 | retval = -1; | |
697 | break; | |
698 | } | |
699 | phy_reg |= 0xc0; | |
700 | ||
701 | PRINT(KERN_INFO, lynx->id, "resetting bus (long bus reset, force_root set) on request"); | |
702 | ||
703 | lynx->selfid_size = -1; | |
704 | lynx->phy_reg0 = -1; | |
705 | set_phy_reg(lynx, 1, phy_reg); /* set IBR and RHB */ | |
706 | break; | |
707 | default: | |
708 | PRINT(KERN_ERR, lynx->id, "unknown argument for reset_bus command %d", arg); | |
709 | retval = -1; | |
710 | } | |
711 | ||
712 | break; | |
713 | ||
714 | case GET_CYCLE_COUNTER: | |
715 | retval = reg_read(lynx, CYCLE_TIMER); | |
716 | break; | |
717 | ||
718 | case SET_CYCLE_COUNTER: | |
719 | reg_write(lynx, CYCLE_TIMER, arg); | |
720 | break; | |
721 | ||
722 | case SET_BUS_ID: | |
723 | reg_write(lynx, LINK_ID, | |
724 | (arg << 22) | (reg_read(lynx, LINK_ID) & 0x003f0000)); | |
725 | break; | |
726 | ||
727 | case ACT_CYCLE_MASTER: | |
728 | if (arg) { | |
729 | reg_set_bits(lynx, LINK_CONTROL, | |
730 | LINK_CONTROL_CYCMASTER); | |
731 | } else { | |
732 | reg_clear_bits(lynx, LINK_CONTROL, | |
733 | LINK_CONTROL_CYCMASTER); | |
734 | } | |
735 | break; | |
736 | ||
737 | case CANCEL_REQUESTS: | |
738 | spin_lock_irqsave(&lynx->async.queue_lock, flags); | |
739 | ||
740 | reg_write(lynx, DMA_CHAN_CTRL(CHANNEL_ASYNC_SEND), 0); | |
e351c4d0 | 741 | list_splice_init(&lynx->async.queue, &packet_list); |
1da177e4 LT |
742 | |
743 | if (list_empty(&lynx->async.pcl_queue)) { | |
744 | spin_unlock_irqrestore(&lynx->async.queue_lock, flags); | |
745 | PRINTD(KERN_DEBUG, lynx->id, "no async packet in PCL to cancel"); | |
746 | } else { | |
747 | struct ti_pcl pcl; | |
748 | u32 ack; | |
1da177e4 LT |
749 | |
750 | PRINT(KERN_INFO, lynx->id, "cancelling async packet, that was already in PCL"); | |
751 | ||
752 | get_pcl(lynx, lynx->async.pcl, &pcl); | |
753 | ||
754 | packet = driver_packet(lynx->async.pcl_queue.next); | |
755 | list_del_init(&packet->driver_list); | |
756 | ||
757 | pci_unmap_single(lynx->dev, lynx->async.header_dma, | |
758 | packet->header_size, PCI_DMA_TODEVICE); | |
759 | if (packet->data_size) { | |
760 | pci_unmap_single(lynx->dev, lynx->async.data_dma, | |
761 | packet->data_size, PCI_DMA_TODEVICE); | |
762 | } | |
763 | ||
764 | spin_unlock_irqrestore(&lynx->async.queue_lock, flags); | |
765 | ||
766 | if (pcl.pcl_status & DMA_CHAN_STAT_PKTCMPL) { | |
767 | if (pcl.pcl_status & DMA_CHAN_STAT_SPECIALACK) { | |
768 | ack = (pcl.pcl_status >> 15) & 0xf; | |
769 | PRINTD(KERN_INFO, lynx->id, "special ack %d", ack); | |
770 | ack = (ack == 1 ? ACKX_TIMEOUT : ACKX_SEND_ERROR); | |
771 | } else { | |
772 | ack = (pcl.pcl_status >> 15) & 0xf; | |
773 | } | |
774 | } else { | |
775 | PRINT(KERN_INFO, lynx->id, "async packet was not completed"); | |
776 | ack = ACKX_ABORTED; | |
777 | } | |
778 | hpsb_packet_sent(host, packet, ack); | |
779 | } | |
780 | ||
781 | while (!list_empty(&packet_list)) { | |
782 | packet = driver_packet(packet_list.next); | |
783 | list_del_init(&packet->driver_list); | |
784 | hpsb_packet_sent(host, packet, ACKX_ABORTED); | |
785 | } | |
786 | ||
787 | break; | |
53c96b41 | 788 | #if 0 /* has been removed from ieee1394 core */ |
1da177e4 LT |
789 | case ISO_LISTEN_CHANNEL: |
790 | spin_lock_irqsave(&lynx->iso_rcv.lock, flags); | |
791 | ||
792 | if (lynx->iso_rcv.chan_count++ == 0) { | |
793 | reg_write(lynx, DMA_WORD1_CMP_ENABLE(CHANNEL_ISO_RCV), | |
794 | DMA_WORD1_CMP_ENABLE_MASTER); | |
795 | } | |
796 | ||
797 | spin_unlock_irqrestore(&lynx->iso_rcv.lock, flags); | |
798 | break; | |
799 | ||
800 | case ISO_UNLISTEN_CHANNEL: | |
801 | spin_lock_irqsave(&lynx->iso_rcv.lock, flags); | |
802 | ||
803 | if (--lynx->iso_rcv.chan_count == 0) { | |
804 | reg_write(lynx, DMA_WORD1_CMP_ENABLE(CHANNEL_ISO_RCV), | |
805 | 0); | |
806 | } | |
807 | ||
808 | spin_unlock_irqrestore(&lynx->iso_rcv.lock, flags); | |
809 | break; | |
53c96b41 | 810 | #endif |
1da177e4 LT |
811 | default: |
812 | PRINT(KERN_ERR, lynx->id, "unknown devctl command %d", cmd); | |
813 | retval = -1; | |
814 | } | |
815 | ||
816 | return retval; | |
817 | } | |
818 | ||
819 | ||
820 | /*************************************** | |
821 | * IEEE-1394 functionality section END * | |
822 | ***************************************/ | |
823 | ||
1da177e4 LT |
824 | |
825 | /******************************************************** | |
826 | * Global stuff (interrupt handler, init/shutdown code) * | |
827 | ********************************************************/ | |
828 | ||
829 | ||
7d12e780 | 830 | static irqreturn_t lynx_irq_handler(int irq, void *dev_id) |
1da177e4 LT |
831 | { |
832 | struct ti_lynx *lynx = (struct ti_lynx *)dev_id; | |
833 | struct hpsb_host *host = lynx->host; | |
834 | u32 intmask; | |
835 | u32 linkint; | |
836 | ||
837 | linkint = reg_read(lynx, LINK_INT_STATUS); | |
838 | intmask = reg_read(lynx, PCI_INT_STATUS); | |
839 | ||
840 | if (!(intmask & PCI_INT_INT_PEND)) | |
841 | return IRQ_NONE; | |
842 | ||
843 | PRINTD(KERN_DEBUG, lynx->id, "interrupt: 0x%08x / 0x%08x", intmask, | |
844 | linkint); | |
845 | ||
846 | reg_write(lynx, LINK_INT_STATUS, linkint); | |
847 | reg_write(lynx, PCI_INT_STATUS, intmask); | |
848 | ||
1da177e4 LT |
849 | if (intmask & PCI_INT_1394) { |
850 | if (linkint & LINK_INT_PHY_TIMEOUT) { | |
851 | PRINT(KERN_INFO, lynx->id, "PHY timeout occurred"); | |
852 | } | |
853 | if (linkint & LINK_INT_PHY_BUSRESET) { | |
854 | PRINT(KERN_INFO, lynx->id, "bus reset interrupt"); | |
855 | lynx->selfid_size = -1; | |
856 | lynx->phy_reg0 = -1; | |
857 | if (!host->in_bus_reset) | |
858 | hpsb_bus_reset(host); | |
859 | } | |
860 | if (linkint & LINK_INT_PHY_REG_RCVD) { | |
861 | u32 reg; | |
862 | ||
863 | spin_lock(&lynx->phy_reg_lock); | |
864 | reg = reg_read(lynx, LINK_PHY); | |
865 | spin_unlock(&lynx->phy_reg_lock); | |
866 | ||
867 | if (!host->in_bus_reset) { | |
868 | PRINT(KERN_INFO, lynx->id, | |
869 | "phy reg received without reset"); | |
870 | } else if (reg & 0xf00) { | |
871 | PRINT(KERN_INFO, lynx->id, | |
872 | "unsolicited phy reg %d received", | |
873 | (reg >> 8) & 0xf); | |
874 | } else { | |
875 | lynx->phy_reg0 = reg & 0xff; | |
876 | handle_selfid(lynx, host); | |
877 | } | |
878 | } | |
879 | if (linkint & LINK_INT_ISO_STUCK) { | |
880 | PRINT(KERN_INFO, lynx->id, "isochronous transmitter stuck"); | |
881 | } | |
882 | if (linkint & LINK_INT_ASYNC_STUCK) { | |
883 | PRINT(KERN_INFO, lynx->id, "asynchronous transmitter stuck"); | |
884 | } | |
885 | if (linkint & LINK_INT_SENT_REJECT) { | |
886 | PRINT(KERN_INFO, lynx->id, "sent reject"); | |
887 | } | |
888 | if (linkint & LINK_INT_TX_INVALID_TC) { | |
889 | PRINT(KERN_INFO, lynx->id, "invalid transaction code"); | |
890 | } | |
891 | if (linkint & LINK_INT_GRF_OVERFLOW) { | |
892 | /* flush FIFO if overflow happens during reset */ | |
893 | if (host->in_bus_reset) | |
894 | reg_write(lynx, FIFO_CONTROL, | |
895 | FIFO_CONTROL_GRF_FLUSH); | |
896 | PRINT(KERN_INFO, lynx->id, "GRF overflow"); | |
897 | } | |
898 | if (linkint & LINK_INT_ITF_UNDERFLOW) { | |
899 | PRINT(KERN_INFO, lynx->id, "ITF underflow"); | |
900 | } | |
901 | if (linkint & LINK_INT_ATF_UNDERFLOW) { | |
902 | PRINT(KERN_INFO, lynx->id, "ATF underflow"); | |
903 | } | |
904 | } | |
905 | ||
906 | if (intmask & PCI_INT_DMA_HLT(CHANNEL_ISO_RCV)) { | |
907 | PRINTD(KERN_DEBUG, lynx->id, "iso receive"); | |
908 | ||
909 | spin_lock(&lynx->iso_rcv.lock); | |
910 | ||
911 | lynx->iso_rcv.stat[lynx->iso_rcv.next] = | |
912 | reg_read(lynx, DMA_CHAN_STAT(CHANNEL_ISO_RCV)); | |
913 | ||
914 | lynx->iso_rcv.used++; | |
915 | lynx->iso_rcv.next = (lynx->iso_rcv.next + 1) % NUM_ISORCV_PCL; | |
916 | ||
917 | if ((lynx->iso_rcv.next == lynx->iso_rcv.last) | |
918 | || !lynx->iso_rcv.chan_count) { | |
919 | PRINTD(KERN_DEBUG, lynx->id, "stopped"); | |
920 | reg_write(lynx, DMA_WORD1_CMP_ENABLE(CHANNEL_ISO_RCV), 0); | |
921 | } | |
922 | ||
923 | run_sub_pcl(lynx, lynx->iso_rcv.pcl_start, lynx->iso_rcv.next, | |
924 | CHANNEL_ISO_RCV); | |
925 | ||
926 | spin_unlock(&lynx->iso_rcv.lock); | |
927 | ||
928 | tasklet_schedule(&lynx->iso_rcv.tq); | |
929 | } | |
930 | ||
931 | if (intmask & PCI_INT_DMA_HLT(CHANNEL_ASYNC_SEND)) { | |
932 | PRINTD(KERN_DEBUG, lynx->id, "async sent"); | |
933 | spin_lock(&lynx->async.queue_lock); | |
934 | ||
935 | if (list_empty(&lynx->async.pcl_queue)) { | |
936 | spin_unlock(&lynx->async.queue_lock); | |
937 | PRINT(KERN_WARNING, lynx->id, "async dma halted, but no queued packet (maybe it was cancelled)"); | |
938 | } else { | |
939 | struct ti_pcl pcl; | |
940 | u32 ack; | |
941 | struct hpsb_packet *packet; | |
942 | ||
943 | get_pcl(lynx, lynx->async.pcl, &pcl); | |
944 | ||
945 | packet = driver_packet(lynx->async.pcl_queue.next); | |
946 | list_del_init(&packet->driver_list); | |
947 | ||
948 | pci_unmap_single(lynx->dev, lynx->async.header_dma, | |
949 | packet->header_size, PCI_DMA_TODEVICE); | |
950 | if (packet->data_size) { | |
951 | pci_unmap_single(lynx->dev, lynx->async.data_dma, | |
952 | packet->data_size, PCI_DMA_TODEVICE); | |
953 | } | |
954 | ||
955 | if (!list_empty(&lynx->async.queue)) { | |
956 | send_next(lynx, hpsb_async); | |
957 | } | |
958 | ||
959 | spin_unlock(&lynx->async.queue_lock); | |
960 | ||
961 | if (pcl.pcl_status & DMA_CHAN_STAT_PKTCMPL) { | |
962 | if (pcl.pcl_status & DMA_CHAN_STAT_SPECIALACK) { | |
963 | ack = (pcl.pcl_status >> 15) & 0xf; | |
964 | PRINTD(KERN_INFO, lynx->id, "special ack %d", ack); | |
965 | ack = (ack == 1 ? ACKX_TIMEOUT : ACKX_SEND_ERROR); | |
966 | } else { | |
967 | ack = (pcl.pcl_status >> 15) & 0xf; | |
968 | } | |
969 | } else { | |
970 | PRINT(KERN_INFO, lynx->id, "async packet was not completed"); | |
971 | ack = ACKX_SEND_ERROR; | |
972 | } | |
973 | hpsb_packet_sent(host, packet, ack); | |
974 | } | |
975 | } | |
976 | ||
977 | if (intmask & PCI_INT_DMA_HLT(CHANNEL_ISO_SEND)) { | |
978 | PRINTD(KERN_DEBUG, lynx->id, "iso sent"); | |
979 | spin_lock(&lynx->iso_send.queue_lock); | |
980 | ||
981 | if (list_empty(&lynx->iso_send.pcl_queue)) { | |
982 | spin_unlock(&lynx->iso_send.queue_lock); | |
983 | PRINT(KERN_ERR, lynx->id, "iso send dma halted, but no queued packet"); | |
984 | } else { | |
985 | struct ti_pcl pcl; | |
986 | u32 ack; | |
987 | struct hpsb_packet *packet; | |
988 | ||
989 | get_pcl(lynx, lynx->iso_send.pcl, &pcl); | |
990 | ||
991 | packet = driver_packet(lynx->iso_send.pcl_queue.next); | |
992 | list_del_init(&packet->driver_list); | |
993 | ||
994 | pci_unmap_single(lynx->dev, lynx->iso_send.header_dma, | |
995 | packet->header_size, PCI_DMA_TODEVICE); | |
996 | if (packet->data_size) { | |
997 | pci_unmap_single(lynx->dev, lynx->iso_send.data_dma, | |
998 | packet->data_size, PCI_DMA_TODEVICE); | |
999 | } | |
53c96b41 | 1000 | #if 0 /* has been removed from ieee1394 core */ |
1da177e4 LT |
1001 | if (!list_empty(&lynx->iso_send.queue)) { |
1002 | send_next(lynx, hpsb_iso); | |
1003 | } | |
53c96b41 | 1004 | #endif |
1da177e4 LT |
1005 | spin_unlock(&lynx->iso_send.queue_lock); |
1006 | ||
1007 | if (pcl.pcl_status & DMA_CHAN_STAT_PKTCMPL) { | |
1008 | if (pcl.pcl_status & DMA_CHAN_STAT_SPECIALACK) { | |
1009 | ack = (pcl.pcl_status >> 15) & 0xf; | |
1010 | PRINTD(KERN_INFO, lynx->id, "special ack %d", ack); | |
1011 | ack = (ack == 1 ? ACKX_TIMEOUT : ACKX_SEND_ERROR); | |
1012 | } else { | |
1013 | ack = (pcl.pcl_status >> 15) & 0xf; | |
1014 | } | |
1015 | } else { | |
1016 | PRINT(KERN_INFO, lynx->id, "iso send packet was not completed"); | |
1017 | ack = ACKX_SEND_ERROR; | |
1018 | } | |
1019 | ||
1020 | hpsb_packet_sent(host, packet, ack); //FIXME: maybe we should just use ACK_COMPLETE and ACKX_SEND_ERROR | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | if (intmask & PCI_INT_DMA_HLT(CHANNEL_ASYNC_RCV)) { | |
1025 | /* general receive DMA completed */ | |
1026 | int stat = reg_read(lynx, DMA_CHAN_STAT(CHANNEL_ASYNC_RCV)); | |
1027 | ||
1028 | PRINTD(KERN_DEBUG, lynx->id, "received packet size %d", | |
1029 | stat & 0x1fff); | |
1030 | ||
1031 | if (stat & DMA_CHAN_STAT_SELFID) { | |
1032 | lynx->selfid_size = stat & 0x1fff; | |
1033 | handle_selfid(lynx, host); | |
1034 | } else { | |
1035 | quadlet_t *q_data = lynx->rcv_page; | |
1036 | if ((*q_data >> 4 & 0xf) == TCODE_READQ_RESPONSE | |
1037 | || (*q_data >> 4 & 0xf) == TCODE_WRITEQ) { | |
1038 | cpu_to_be32s(q_data + 3); | |
1039 | } | |
1040 | hpsb_packet_received(host, q_data, stat & 0x1fff, 0); | |
1041 | } | |
1042 | ||
1043 | run_pcl(lynx, lynx->rcv_pcl_start, CHANNEL_ASYNC_RCV); | |
1044 | } | |
1045 | ||
1046 | return IRQ_HANDLED; | |
1047 | } | |
1048 | ||
1049 | ||
1050 | static void iso_rcv_bh(struct ti_lynx *lynx) | |
1051 | { | |
1052 | unsigned int idx; | |
1053 | quadlet_t *data; | |
1054 | unsigned long flags; | |
1055 | ||
1056 | spin_lock_irqsave(&lynx->iso_rcv.lock, flags); | |
1057 | ||
1058 | while (lynx->iso_rcv.used) { | |
1059 | idx = lynx->iso_rcv.last; | |
1060 | spin_unlock_irqrestore(&lynx->iso_rcv.lock, flags); | |
1061 | ||
1062 | data = lynx->iso_rcv.page[idx / ISORCV_PER_PAGE] | |
1063 | + (idx % ISORCV_PER_PAGE) * MAX_ISORCV_SIZE; | |
1064 | ||
1065 | if ((*data >> 16) + 4 != (lynx->iso_rcv.stat[idx] & 0x1fff)) { | |
1066 | PRINT(KERN_ERR, lynx->id, | |
1067 | "iso length mismatch 0x%08x/0x%08x", *data, | |
1068 | lynx->iso_rcv.stat[idx]); | |
1069 | } | |
1070 | ||
1071 | if (lynx->iso_rcv.stat[idx] | |
1072 | & (DMA_CHAN_STAT_PCIERR | DMA_CHAN_STAT_PKTERR)) { | |
1073 | PRINT(KERN_INFO, lynx->id, | |
1074 | "iso receive error on %d to 0x%p", idx, data); | |
1075 | } else { | |
1076 | hpsb_packet_received(lynx->host, data, | |
1077 | lynx->iso_rcv.stat[idx] & 0x1fff, | |
1078 | 0); | |
1079 | } | |
1080 | ||
1081 | spin_lock_irqsave(&lynx->iso_rcv.lock, flags); | |
1082 | lynx->iso_rcv.last = (idx + 1) % NUM_ISORCV_PCL; | |
1083 | lynx->iso_rcv.used--; | |
1084 | } | |
1085 | ||
1086 | if (lynx->iso_rcv.chan_count) { | |
1087 | reg_write(lynx, DMA_WORD1_CMP_ENABLE(CHANNEL_ISO_RCV), | |
1088 | DMA_WORD1_CMP_ENABLE_MASTER); | |
1089 | } | |
1090 | spin_unlock_irqrestore(&lynx->iso_rcv.lock, flags); | |
1091 | } | |
1092 | ||
1093 | ||
1094 | static void remove_card(struct pci_dev *dev) | |
1095 | { | |
1096 | struct ti_lynx *lynx; | |
1097 | struct device *lynx_dev; | |
1098 | int i; | |
1099 | ||
1100 | lynx = pci_get_drvdata(dev); | |
1101 | if (!lynx) return; | |
1102 | pci_set_drvdata(dev, NULL); | |
1103 | ||
1104 | lynx_dev = get_device(&lynx->host->device); | |
1105 | ||
1106 | switch (lynx->state) { | |
1107 | case is_host: | |
1108 | reg_write(lynx, PCI_INT_ENABLE, 0); | |
1109 | hpsb_remove_host(lynx->host); | |
1110 | case have_intr: | |
1111 | reg_write(lynx, PCI_INT_ENABLE, 0); | |
1112 | free_irq(lynx->dev->irq, lynx); | |
1113 | ||
1114 | /* Disable IRM Contender and LCtrl */ | |
1115 | if (lynx->phyic.reg_1394a) | |
1116 | set_phy_reg(lynx, 4, ~0xc0 & get_phy_reg(lynx, 4)); | |
1117 | ||
1118 | /* Let all other nodes know to ignore us */ | |
1119 | lynx_devctl(lynx->host, RESET_BUS, LONG_RESET_NO_FORCE_ROOT); | |
1120 | ||
1121 | case have_iomappings: | |
1122 | reg_set_bits(lynx, MISC_CONTROL, MISC_CONTROL_SWRESET); | |
1123 | /* Fix buggy cards with autoboot pin not tied low: */ | |
1124 | reg_write(lynx, DMA0_CHAN_CTRL, 0); | |
1125 | iounmap(lynx->registers); | |
1126 | iounmap(lynx->local_rom); | |
1127 | iounmap(lynx->local_ram); | |
1128 | iounmap(lynx->aux_port); | |
1129 | case have_1394_buffers: | |
1130 | for (i = 0; i < ISORCV_PAGES; i++) { | |
1131 | if (lynx->iso_rcv.page[i]) { | |
1132 | pci_free_consistent(lynx->dev, PAGE_SIZE, | |
1133 | lynx->iso_rcv.page[i], | |
1134 | lynx->iso_rcv.page_dma[i]); | |
1135 | } | |
1136 | } | |
1137 | pci_free_consistent(lynx->dev, PAGE_SIZE, lynx->rcv_page, | |
1138 | lynx->rcv_page_dma); | |
1139 | case have_aux_buf: | |
1da177e4 | 1140 | case have_pcl_mem: |
1da177e4 LT |
1141 | pci_free_consistent(lynx->dev, LOCALRAM_SIZE, lynx->pcl_mem, |
1142 | lynx->pcl_mem_dma); | |
1da177e4 LT |
1143 | case clear: |
1144 | /* do nothing - already freed */ | |
1145 | ; | |
1146 | } | |
1147 | ||
1148 | tasklet_kill(&lynx->iso_rcv.tq); | |
1149 | ||
1150 | if (lynx_dev) | |
1151 | put_device(lynx_dev); | |
1152 | } | |
1153 | ||
1154 | ||
1155 | static int __devinit add_card(struct pci_dev *dev, | |
1156 | const struct pci_device_id *devid_is_unused) | |
1157 | { | |
1158 | #define FAIL(fmt, args...) do { \ | |
1159 | PRINT_G(KERN_ERR, fmt , ## args); \ | |
1160 | remove_card(dev); \ | |
1161 | return error; \ | |
1162 | } while (0) | |
1163 | ||
1164 | char irq_buf[16]; | |
1165 | struct hpsb_host *host; | |
1166 | struct ti_lynx *lynx; /* shortcut to currently handled device */ | |
1167 | struct ti_pcl pcl; | |
1168 | u32 *pcli; | |
1169 | int i; | |
1170 | int error; | |
1171 | ||
1172 | error = -ENXIO; | |
1173 | ||
284901a9 | 1174 | if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) |
1da177e4 LT |
1175 | FAIL("DMA address limits not supported for PCILynx hardware"); |
1176 | if (pci_enable_device(dev)) | |
1177 | FAIL("failed to enable PCILynx hardware"); | |
1178 | pci_set_master(dev); | |
1179 | ||
1180 | error = -ENOMEM; | |
1181 | ||
1182 | host = hpsb_alloc_host(&lynx_driver, sizeof(struct ti_lynx), &dev->dev); | |
1183 | if (!host) FAIL("failed to allocate control structure memory"); | |
1184 | ||
1185 | lynx = host->hostdata; | |
1186 | lynx->id = card_id++; | |
1187 | lynx->dev = dev; | |
1188 | lynx->state = clear; | |
1189 | lynx->host = host; | |
1190 | host->pdev = dev; | |
1191 | pci_set_drvdata(dev, lynx); | |
1192 | ||
1193 | spin_lock_init(&lynx->lock); | |
1194 | spin_lock_init(&lynx->phy_reg_lock); | |
1195 | ||
1da177e4 LT |
1196 | lynx->pcl_mem = pci_alloc_consistent(dev, LOCALRAM_SIZE, |
1197 | &lynx->pcl_mem_dma); | |
1198 | ||
1199 | if (lynx->pcl_mem != NULL) { | |
1200 | lynx->state = have_pcl_mem; | |
1201 | PRINT(KERN_INFO, lynx->id, | |
1202 | "allocated PCL memory %d Bytes @ 0x%p", LOCALRAM_SIZE, | |
1203 | lynx->pcl_mem); | |
1204 | } else { | |
1205 | FAIL("failed to allocate PCL memory area"); | |
1206 | } | |
1da177e4 LT |
1207 | |
1208 | lynx->rcv_page = pci_alloc_consistent(dev, PAGE_SIZE, | |
1209 | &lynx->rcv_page_dma); | |
1210 | if (lynx->rcv_page == NULL) { | |
1211 | FAIL("failed to allocate receive buffer"); | |
1212 | } | |
1213 | lynx->state = have_1394_buffers; | |
1214 | ||
1215 | for (i = 0; i < ISORCV_PAGES; i++) { | |
1216 | lynx->iso_rcv.page[i] = | |
1217 | pci_alloc_consistent(dev, PAGE_SIZE, | |
1218 | &lynx->iso_rcv.page_dma[i]); | |
1219 | if (lynx->iso_rcv.page[i] == NULL) { | |
1220 | FAIL("failed to allocate iso receive buffers"); | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | lynx->registers = ioremap_nocache(pci_resource_start(dev,0), | |
1225 | PCILYNX_MAX_REGISTER); | |
1226 | lynx->local_ram = ioremap(pci_resource_start(dev,1), PCILYNX_MAX_MEMORY); | |
1227 | lynx->aux_port = ioremap(pci_resource_start(dev,2), PCILYNX_MAX_MEMORY); | |
1228 | lynx->local_rom = ioremap(pci_resource_start(dev,PCI_ROM_RESOURCE), | |
1229 | PCILYNX_MAX_MEMORY); | |
1230 | lynx->state = have_iomappings; | |
1231 | ||
1232 | if (lynx->registers == NULL) { | |
1233 | FAIL("failed to remap registers - card not accessible"); | |
1234 | } | |
1235 | ||
1da177e4 LT |
1236 | reg_set_bits(lynx, MISC_CONTROL, MISC_CONTROL_SWRESET); |
1237 | /* Fix buggy cards with autoboot pin not tied low: */ | |
1238 | reg_write(lynx, DMA0_CHAN_CTRL, 0); | |
1239 | ||
1da177e4 | 1240 | sprintf (irq_buf, "%d", dev->irq); |
1da177e4 | 1241 | |
272ee69c | 1242 | if (!request_irq(dev->irq, lynx_irq_handler, IRQF_SHARED, |
1da177e4 LT |
1243 | PCILYNX_DRIVER_NAME, lynx)) { |
1244 | PRINT(KERN_INFO, lynx->id, "allocated interrupt %s", irq_buf); | |
1245 | lynx->state = have_intr; | |
1246 | } else { | |
1247 | FAIL("failed to allocate shared interrupt %s", irq_buf); | |
1248 | } | |
1249 | ||
1250 | /* alloc_pcl return values are not checked, it is expected that the | |
1251 | * provided PCL space is sufficient for the initial allocations */ | |
1da177e4 LT |
1252 | lynx->rcv_pcl = alloc_pcl(lynx); |
1253 | lynx->rcv_pcl_start = alloc_pcl(lynx); | |
1254 | lynx->async.pcl = alloc_pcl(lynx); | |
1255 | lynx->async.pcl_start = alloc_pcl(lynx); | |
1256 | lynx->iso_send.pcl = alloc_pcl(lynx); | |
1257 | lynx->iso_send.pcl_start = alloc_pcl(lynx); | |
1258 | ||
1259 | for (i = 0; i < NUM_ISORCV_PCL; i++) { | |
1260 | lynx->iso_rcv.pcl[i] = alloc_pcl(lynx); | |
1261 | } | |
1262 | lynx->iso_rcv.pcl_start = alloc_pcl(lynx); | |
1263 | ||
1264 | /* all allocations successful - simple init stuff follows */ | |
1265 | ||
1266 | reg_write(lynx, PCI_INT_ENABLE, PCI_INT_DMA_ALL); | |
1267 | ||
1da177e4 LT |
1268 | tasklet_init(&lynx->iso_rcv.tq, (void (*)(unsigned long))iso_rcv_bh, |
1269 | (unsigned long)lynx); | |
1270 | ||
1271 | spin_lock_init(&lynx->iso_rcv.lock); | |
1272 | ||
1273 | spin_lock_init(&lynx->async.queue_lock); | |
1274 | lynx->async.channel = CHANNEL_ASYNC_SEND; | |
1275 | spin_lock_init(&lynx->iso_send.queue_lock); | |
1276 | lynx->iso_send.channel = CHANNEL_ISO_SEND; | |
1277 | ||
1278 | PRINT(KERN_INFO, lynx->id, "remapped memory spaces reg 0x%p, rom 0x%p, " | |
1279 | "ram 0x%p, aux 0x%p", lynx->registers, lynx->local_rom, | |
1280 | lynx->local_ram, lynx->aux_port); | |
1281 | ||
1282 | /* now, looking for PHY register set */ | |
1283 | if ((get_phy_reg(lynx, 2) & 0xe0) == 0xe0) { | |
1284 | lynx->phyic.reg_1394a = 1; | |
1285 | PRINT(KERN_INFO, lynx->id, | |
1286 | "found 1394a conform PHY (using extended register set)"); | |
1287 | lynx->phyic.vendor = get_phy_vendorid(lynx); | |
1288 | lynx->phyic.product = get_phy_productid(lynx); | |
1289 | } else { | |
1290 | lynx->phyic.reg_1394a = 0; | |
1291 | PRINT(KERN_INFO, lynx->id, "found old 1394 PHY"); | |
1292 | } | |
1293 | ||
1294 | lynx->selfid_size = -1; | |
1295 | lynx->phy_reg0 = -1; | |
1296 | ||
1297 | INIT_LIST_HEAD(&lynx->async.queue); | |
1298 | INIT_LIST_HEAD(&lynx->async.pcl_queue); | |
1299 | INIT_LIST_HEAD(&lynx->iso_send.queue); | |
1300 | INIT_LIST_HEAD(&lynx->iso_send.pcl_queue); | |
1301 | ||
1302 | pcl.next = pcl_bus(lynx, lynx->rcv_pcl); | |
1303 | put_pcl(lynx, lynx->rcv_pcl_start, &pcl); | |
1304 | ||
1305 | pcl.next = PCL_NEXT_INVALID; | |
1306 | pcl.async_error_next = PCL_NEXT_INVALID; | |
1307 | ||
1308 | pcl.buffer[0].control = PCL_CMD_RCV | 16; | |
1309 | #ifndef __BIG_ENDIAN | |
1310 | pcl.buffer[0].control |= PCL_BIGENDIAN; | |
1311 | #endif | |
1312 | pcl.buffer[1].control = PCL_LAST_BUFF | 4080; | |
1313 | ||
1314 | pcl.buffer[0].pointer = lynx->rcv_page_dma; | |
1315 | pcl.buffer[1].pointer = lynx->rcv_page_dma + 16; | |
1316 | put_pcl(lynx, lynx->rcv_pcl, &pcl); | |
1317 | ||
1318 | pcl.next = pcl_bus(lynx, lynx->async.pcl); | |
1319 | pcl.async_error_next = pcl_bus(lynx, lynx->async.pcl); | |
1320 | put_pcl(lynx, lynx->async.pcl_start, &pcl); | |
1321 | ||
1322 | pcl.next = pcl_bus(lynx, lynx->iso_send.pcl); | |
1323 | pcl.async_error_next = PCL_NEXT_INVALID; | |
1324 | put_pcl(lynx, lynx->iso_send.pcl_start, &pcl); | |
1325 | ||
1326 | pcl.next = PCL_NEXT_INVALID; | |
1327 | pcl.async_error_next = PCL_NEXT_INVALID; | |
1328 | pcl.buffer[0].control = PCL_CMD_RCV | 4; | |
1329 | #ifndef __BIG_ENDIAN | |
1330 | pcl.buffer[0].control |= PCL_BIGENDIAN; | |
1331 | #endif | |
1332 | pcl.buffer[1].control = PCL_LAST_BUFF | 2044; | |
1333 | ||
1334 | for (i = 0; i < NUM_ISORCV_PCL; i++) { | |
1335 | int page = i / ISORCV_PER_PAGE; | |
1336 | int sec = i % ISORCV_PER_PAGE; | |
1337 | ||
1338 | pcl.buffer[0].pointer = lynx->iso_rcv.page_dma[page] | |
1339 | + sec * MAX_ISORCV_SIZE; | |
1340 | pcl.buffer[1].pointer = pcl.buffer[0].pointer + 4; | |
1341 | put_pcl(lynx, lynx->iso_rcv.pcl[i], &pcl); | |
1342 | } | |
1343 | ||
1344 | pcli = (u32 *)&pcl; | |
1345 | for (i = 0; i < NUM_ISORCV_PCL; i++) { | |
1346 | pcli[i] = pcl_bus(lynx, lynx->iso_rcv.pcl[i]); | |
1347 | } | |
1348 | put_pcl(lynx, lynx->iso_rcv.pcl_start, &pcl); | |
1349 | ||
1350 | /* FIFO sizes from left to right: ITF=48 ATF=48 GRF=160 */ | |
1351 | reg_write(lynx, FIFO_SIZES, 0x003030a0); | |
1352 | /* 20 byte threshold before triggering PCI transfer */ | |
1353 | reg_write(lynx, DMA_GLOBAL_REGISTER, 0x2<<24); | |
1354 | /* threshold on both send FIFOs before transmitting: | |
1355 | FIFO size - cache line size - 1 */ | |
1356 | i = reg_read(lynx, PCI_LATENCY_CACHELINE) & 0xff; | |
1357 | i = 0x30 - i - 1; | |
1358 | reg_write(lynx, FIFO_XMIT_THRESHOLD, (i << 8) | i); | |
1359 | ||
1360 | reg_set_bits(lynx, PCI_INT_ENABLE, PCI_INT_1394); | |
1361 | ||
1362 | reg_write(lynx, LINK_INT_ENABLE, LINK_INT_PHY_TIMEOUT | |
1363 | | LINK_INT_PHY_REG_RCVD | LINK_INT_PHY_BUSRESET | |
1364 | | LINK_INT_ISO_STUCK | LINK_INT_ASYNC_STUCK | |
1365 | | LINK_INT_SENT_REJECT | LINK_INT_TX_INVALID_TC | |
1366 | | LINK_INT_GRF_OVERFLOW | LINK_INT_ITF_UNDERFLOW | |
1367 | | LINK_INT_ATF_UNDERFLOW); | |
1368 | ||
1369 | reg_write(lynx, DMA_WORD0_CMP_VALUE(CHANNEL_ASYNC_RCV), 0); | |
1370 | reg_write(lynx, DMA_WORD0_CMP_ENABLE(CHANNEL_ASYNC_RCV), 0xa<<4); | |
1371 | reg_write(lynx, DMA_WORD1_CMP_VALUE(CHANNEL_ASYNC_RCV), 0); | |
1372 | reg_write(lynx, DMA_WORD1_CMP_ENABLE(CHANNEL_ASYNC_RCV), | |
1373 | DMA_WORD1_CMP_MATCH_LOCAL_NODE | DMA_WORD1_CMP_MATCH_BROADCAST | |
1374 | | DMA_WORD1_CMP_MATCH_EXACT | DMA_WORD1_CMP_MATCH_BUS_BCAST | |
1375 | | DMA_WORD1_CMP_ENABLE_SELF_ID | DMA_WORD1_CMP_ENABLE_MASTER); | |
1376 | ||
1377 | run_pcl(lynx, lynx->rcv_pcl_start, CHANNEL_ASYNC_RCV); | |
1378 | ||
1379 | reg_write(lynx, DMA_WORD0_CMP_VALUE(CHANNEL_ISO_RCV), 0); | |
1380 | reg_write(lynx, DMA_WORD0_CMP_ENABLE(CHANNEL_ISO_RCV), 0x9<<4); | |
1381 | reg_write(lynx, DMA_WORD1_CMP_VALUE(CHANNEL_ISO_RCV), 0); | |
1382 | reg_write(lynx, DMA_WORD1_CMP_ENABLE(CHANNEL_ISO_RCV), 0); | |
1383 | ||
1384 | run_sub_pcl(lynx, lynx->iso_rcv.pcl_start, 0, CHANNEL_ISO_RCV); | |
1385 | ||
1386 | reg_write(lynx, LINK_CONTROL, LINK_CONTROL_RCV_CMP_VALID | |
1387 | | LINK_CONTROL_TX_ISO_EN | LINK_CONTROL_RX_ISO_EN | |
1388 | | LINK_CONTROL_TX_ASYNC_EN | LINK_CONTROL_RX_ASYNC_EN | |
1389 | | LINK_CONTROL_RESET_TX | LINK_CONTROL_RESET_RX); | |
1390 | ||
1391 | if (!lynx->phyic.reg_1394a) { | |
1392 | if (!hpsb_disable_irm) { | |
1393 | /* attempt to enable contender bit -FIXME- would this | |
1394 | * work elsewhere? */ | |
1395 | reg_set_bits(lynx, GPIO_CTRL_A, 0x1); | |
1396 | reg_write(lynx, GPIO_DATA_BASE + 0x3c, 0x1); | |
1397 | } | |
1398 | } else { | |
1399 | /* set the contender (if appropriate) and LCtrl bit in the | |
1400 | * extended PHY register set. (Should check that PHY_02_EXTENDED | |
1401 | * is set in register 2?) | |
1402 | */ | |
1403 | i = get_phy_reg(lynx, 4); | |
1404 | i |= PHY_04_LCTRL; | |
1405 | if (hpsb_disable_irm) | |
1934b8b6 | 1406 | i &= ~PHY_04_CONTENDER; |
1da177e4 LT |
1407 | else |
1408 | i |= PHY_04_CONTENDER; | |
1409 | if (i != -1) set_phy_reg(lynx, 4, i); | |
1410 | } | |
1411 | ||
1412 | if (!skip_eeprom) | |
1413 | { | |
1414 | /* needed for i2c communication with serial eeprom */ | |
1415 | struct i2c_adapter *i2c_ad; | |
1416 | struct i2c_algo_bit_data i2c_adapter_data; | |
1417 | ||
1418 | error = -ENOMEM; | |
745647e7 | 1419 | i2c_ad = kzalloc(sizeof(*i2c_ad), GFP_KERNEL); |
1da177e4 LT |
1420 | if (!i2c_ad) FAIL("failed to allocate I2C adapter memory"); |
1421 | ||
745647e7 | 1422 | strlcpy(i2c_ad->name, "PCILynx I2C", sizeof(i2c_ad->name)); |
1da177e4 LT |
1423 | i2c_adapter_data = bit_data; |
1424 | i2c_ad->algo_data = &i2c_adapter_data; | |
1425 | i2c_adapter_data.data = lynx; | |
12a917f6 | 1426 | i2c_ad->dev.parent = &dev->dev; |
1da177e4 LT |
1427 | |
1428 | PRINTD(KERN_DEBUG, lynx->id,"original eeprom control: %d", | |
1429 | reg_read(lynx, SERIAL_EEPROM_CONTROL)); | |
1430 | ||
1431 | /* reset hardware to sane state */ | |
1432 | lynx->i2c_driven_state = 0x00000070; | |
1433 | reg_write(lynx, SERIAL_EEPROM_CONTROL, lynx->i2c_driven_state); | |
1434 | ||
1435 | if (i2c_bit_add_bus(i2c_ad) < 0) | |
1436 | { | |
1437 | kfree(i2c_ad); | |
1438 | error = -ENXIO; | |
1439 | FAIL("unable to register i2c"); | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | /* do i2c stuff */ | |
1444 | unsigned char i2c_cmd = 0x10; | |
1445 | struct i2c_msg msg[2] = { { 0x50, 0, 1, &i2c_cmd }, | |
1446 | { 0x50, I2C_M_RD, 20, (unsigned char*) lynx->bus_info_block } | |
1447 | }; | |
1448 | ||
745647e7 JD |
1449 | /* we use i2c_transfer because we have no i2c_client |
1450 | at hand */ | |
1da177e4 LT |
1451 | if (i2c_transfer(i2c_ad, msg, 2) < 0) { |
1452 | PRINT(KERN_ERR, lynx->id, "unable to read bus info block from i2c"); | |
1453 | } else { | |
1da177e4 LT |
1454 | PRINT(KERN_INFO, lynx->id, "got bus info block from serial eeprom"); |
1455 | /* FIXME: probably we shoud rewrite the max_rec, max_ROM(1394a), | |
1456 | * generation(1394a) and link_spd(1394a) field and recalculate | |
1457 | * the CRC */ | |
1458 | ||
1459 | for (i = 0; i < 5 ; i++) | |
1460 | PRINTD(KERN_DEBUG, lynx->id, "Businfo block quadlet %i: %08x", | |
1461 | i, be32_to_cpu(lynx->bus_info_block[i])); | |
1462 | ||
1463 | /* info_length, crc_length and 1394 magic number to check, if it is really a bus info block */ | |
1464 | if (((be32_to_cpu(lynx->bus_info_block[0]) & 0xffff0000) == 0x04040000) && | |
c1fc58d6 | 1465 | (lynx->bus_info_block[1] == IEEE1394_BUSID_MAGIC)) |
1da177e4 LT |
1466 | { |
1467 | PRINT(KERN_DEBUG, lynx->id, "read a valid bus info block from"); | |
1468 | } else { | |
1469 | kfree(i2c_ad); | |
1470 | error = -ENXIO; | |
1471 | FAIL("read something from serial eeprom, but it does not seem to be a valid bus info block"); | |
1472 | } | |
1473 | ||
1474 | } | |
1475 | ||
3269711b | 1476 | i2c_del_adapter(i2c_ad); |
1da177e4 LT |
1477 | kfree(i2c_ad); |
1478 | } | |
1479 | } | |
1480 | ||
1481 | host->csr.guid_hi = be32_to_cpu(lynx->bus_info_block[3]); | |
1482 | host->csr.guid_lo = be32_to_cpu(lynx->bus_info_block[4]); | |
1483 | host->csr.cyc_clk_acc = (be32_to_cpu(lynx->bus_info_block[2]) >> 16) & 0xff; | |
1484 | host->csr.max_rec = (be32_to_cpu(lynx->bus_info_block[2]) >> 12) & 0xf; | |
1485 | if (!lynx->phyic.reg_1394a) | |
1486 | host->csr.lnk_spd = (get_phy_reg(lynx, 2) & 0xc0) >> 6; | |
1487 | else | |
1488 | host->csr.lnk_spd = be32_to_cpu(lynx->bus_info_block[2]) & 0x7; | |
1489 | ||
1490 | if (hpsb_add_host(host)) { | |
1491 | error = -ENOMEM; | |
1492 | FAIL("Failed to register host with highlevel"); | |
1493 | } | |
1494 | ||
1495 | lynx->state = is_host; | |
1496 | ||
1497 | return 0; | |
1498 | #undef FAIL | |
1499 | } | |
1500 | ||
1501 | ||
1502 | static struct pci_device_id pci_table[] = { | |
1503 | { | |
1504 | .vendor = PCI_VENDOR_ID_TI, | |
1505 | .device = PCI_DEVICE_ID_TI_PCILYNX, | |
1506 | .subvendor = PCI_ANY_ID, | |
1507 | .subdevice = PCI_ANY_ID, | |
1508 | }, | |
1509 | { } /* Terminating entry */ | |
1510 | }; | |
1511 | ||
1512 | static struct pci_driver lynx_pci_driver = { | |
1513 | .name = PCILYNX_DRIVER_NAME, | |
1514 | .id_table = pci_table, | |
1515 | .probe = add_card, | |
1516 | .remove = remove_card, | |
1517 | }; | |
1518 | ||
1519 | static struct hpsb_host_driver lynx_driver = { | |
1520 | .owner = THIS_MODULE, | |
1521 | .name = PCILYNX_DRIVER_NAME, | |
1522 | .set_hw_config_rom = NULL, | |
1523 | .transmit_packet = lynx_transmit, | |
1524 | .devctl = lynx_devctl, | |
1525 | .isoctl = NULL, | |
1526 | }; | |
1527 | ||
1528 | MODULE_AUTHOR("Andreas E. Bombe <andreas.bombe@munich.netsurf.de>"); | |
1529 | MODULE_DESCRIPTION("driver for Texas Instruments PCI Lynx IEEE-1394 controller"); | |
1530 | MODULE_LICENSE("GPL"); | |
1531 | MODULE_SUPPORTED_DEVICE("pcilynx"); | |
1532 | MODULE_DEVICE_TABLE(pci, pci_table); | |
1533 | ||
1534 | static int __init pcilynx_init(void) | |
1535 | { | |
1536 | int ret; | |
1537 | ||
1da177e4 LT |
1538 | ret = pci_register_driver(&lynx_pci_driver); |
1539 | if (ret < 0) { | |
1540 | PRINT_G(KERN_ERR, "PCI module init failed"); | |
f72cd138 | 1541 | return ret; |
1da177e4 LT |
1542 | } |
1543 | ||
1544 | return 0; | |
1da177e4 LT |
1545 | } |
1546 | ||
1547 | static void __exit pcilynx_cleanup(void) | |
1548 | { | |
1549 | pci_unregister_driver(&lynx_pci_driver); | |
1da177e4 LT |
1550 | } |
1551 | ||
1552 | ||
1553 | module_init(pcilynx_init); | |
1554 | module_exit(pcilynx_cleanup); |