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3d17fb1b MCC |
1 | /* |
2 | * driver for Earthsoft PT1 | |
3 | * | |
4 | * Copyright (C) 2009 HIRANO Takahito <hiranotaka@zng.info> | |
5 | * | |
6 | * based on pt1dvr - http://pt1dvr.sourceforge.jp/ | |
7 | * by Tomoaki Ishikawa <tomy@users.sourceforge.jp> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/module.h> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
2a20b05f | 27 | #include <linux/vmalloc.h> |
3d17fb1b MCC |
28 | #include <linux/pci.h> |
29 | #include <linux/kthread.h> | |
30 | #include <linux/freezer.h> | |
31 | ||
32 | #include "dvbdev.h" | |
33 | #include "dvb_demux.h" | |
34 | #include "dmxdev.h" | |
35 | #include "dvb_net.h" | |
36 | #include "dvb_frontend.h" | |
37 | ||
38 | #include "va1j5jf8007t.h" | |
39 | #include "va1j5jf8007s.h" | |
40 | ||
41 | #define DRIVER_NAME "earth-pt1" | |
42 | ||
43 | #define PT1_PAGE_SHIFT 12 | |
44 | #define PT1_PAGE_SIZE (1 << PT1_PAGE_SHIFT) | |
45 | #define PT1_NR_UPACKETS 1024 | |
46 | #define PT1_NR_BUFS 511 | |
47 | ||
48 | struct pt1_buffer_page { | |
49 | __le32 upackets[PT1_NR_UPACKETS]; | |
50 | }; | |
51 | ||
52 | struct pt1_table_page { | |
53 | __le32 next_pfn; | |
54 | __le32 buf_pfns[PT1_NR_BUFS]; | |
55 | }; | |
56 | ||
57 | struct pt1_buffer { | |
58 | struct pt1_buffer_page *page; | |
59 | dma_addr_t addr; | |
60 | }; | |
61 | ||
62 | struct pt1_table { | |
63 | struct pt1_table_page *page; | |
64 | dma_addr_t addr; | |
65 | struct pt1_buffer bufs[PT1_NR_BUFS]; | |
66 | }; | |
67 | ||
68 | #define PT1_NR_ADAPS 4 | |
69 | ||
70 | struct pt1_adapter; | |
71 | ||
72 | struct pt1 { | |
73 | struct pci_dev *pdev; | |
74 | void __iomem *regs; | |
75 | struct i2c_adapter i2c_adap; | |
76 | int i2c_running; | |
77 | struct pt1_adapter *adaps[PT1_NR_ADAPS]; | |
78 | struct pt1_table *tables; | |
79 | struct task_struct *kthread; | |
80 | }; | |
81 | ||
82 | struct pt1_adapter { | |
83 | struct pt1 *pt1; | |
84 | int index; | |
85 | ||
86 | u8 *buf; | |
87 | int upacket_count; | |
88 | int packet_count; | |
89 | ||
90 | struct dvb_adapter adap; | |
91 | struct dvb_demux demux; | |
92 | int users; | |
93 | struct dmxdev dmxdev; | |
94 | struct dvb_net net; | |
95 | struct dvb_frontend *fe; | |
96 | int (*orig_set_voltage)(struct dvb_frontend *fe, | |
97 | fe_sec_voltage_t voltage); | |
98 | }; | |
99 | ||
100 | #define pt1_printk(level, pt1, format, arg...) \ | |
101 | dev_printk(level, &(pt1)->pdev->dev, format, ##arg) | |
102 | ||
103 | static void pt1_write_reg(struct pt1 *pt1, int reg, u32 data) | |
104 | { | |
105 | writel(data, pt1->regs + reg * 4); | |
106 | } | |
107 | ||
108 | static u32 pt1_read_reg(struct pt1 *pt1, int reg) | |
109 | { | |
110 | return readl(pt1->regs + reg * 4); | |
111 | } | |
112 | ||
113 | static int pt1_nr_tables = 64; | |
114 | module_param_named(nr_tables, pt1_nr_tables, int, 0); | |
115 | ||
116 | static void pt1_increment_table_count(struct pt1 *pt1) | |
117 | { | |
118 | pt1_write_reg(pt1, 0, 0x00000020); | |
119 | } | |
120 | ||
121 | static void pt1_init_table_count(struct pt1 *pt1) | |
122 | { | |
123 | pt1_write_reg(pt1, 0, 0x00000010); | |
124 | } | |
125 | ||
126 | static void pt1_register_tables(struct pt1 *pt1, u32 first_pfn) | |
127 | { | |
128 | pt1_write_reg(pt1, 5, first_pfn); | |
129 | pt1_write_reg(pt1, 0, 0x0c000040); | |
130 | } | |
131 | ||
132 | static void pt1_unregister_tables(struct pt1 *pt1) | |
133 | { | |
134 | pt1_write_reg(pt1, 0, 0x08080000); | |
135 | } | |
136 | ||
137 | static int pt1_sync(struct pt1 *pt1) | |
138 | { | |
139 | int i; | |
140 | for (i = 0; i < 57; i++) { | |
141 | if (pt1_read_reg(pt1, 0) & 0x20000000) | |
142 | return 0; | |
143 | pt1_write_reg(pt1, 0, 0x00000008); | |
144 | } | |
145 | pt1_printk(KERN_ERR, pt1, "could not sync\n"); | |
146 | return -EIO; | |
147 | } | |
148 | ||
149 | static u64 pt1_identify(struct pt1 *pt1) | |
150 | { | |
151 | int i; | |
152 | u64 id; | |
153 | id = 0; | |
154 | for (i = 0; i < 57; i++) { | |
155 | id |= (u64)(pt1_read_reg(pt1, 0) >> 30 & 1) << i; | |
156 | pt1_write_reg(pt1, 0, 0x00000008); | |
157 | } | |
158 | return id; | |
159 | } | |
160 | ||
161 | static int pt1_unlock(struct pt1 *pt1) | |
162 | { | |
163 | int i; | |
164 | pt1_write_reg(pt1, 0, 0x00000008); | |
165 | for (i = 0; i < 3; i++) { | |
166 | if (pt1_read_reg(pt1, 0) & 0x80000000) | |
167 | return 0; | |
168 | schedule_timeout_uninterruptible((HZ + 999) / 1000); | |
169 | } | |
170 | pt1_printk(KERN_ERR, pt1, "could not unlock\n"); | |
171 | return -EIO; | |
172 | } | |
173 | ||
174 | static int pt1_reset_pci(struct pt1 *pt1) | |
175 | { | |
176 | int i; | |
177 | pt1_write_reg(pt1, 0, 0x01010000); | |
178 | pt1_write_reg(pt1, 0, 0x01000000); | |
179 | for (i = 0; i < 10; i++) { | |
180 | if (pt1_read_reg(pt1, 0) & 0x00000001) | |
181 | return 0; | |
182 | schedule_timeout_uninterruptible((HZ + 999) / 1000); | |
183 | } | |
184 | pt1_printk(KERN_ERR, pt1, "could not reset PCI\n"); | |
185 | return -EIO; | |
186 | } | |
187 | ||
188 | static int pt1_reset_ram(struct pt1 *pt1) | |
189 | { | |
190 | int i; | |
191 | pt1_write_reg(pt1, 0, 0x02020000); | |
192 | pt1_write_reg(pt1, 0, 0x02000000); | |
193 | for (i = 0; i < 10; i++) { | |
194 | if (pt1_read_reg(pt1, 0) & 0x00000002) | |
195 | return 0; | |
196 | schedule_timeout_uninterruptible((HZ + 999) / 1000); | |
197 | } | |
198 | pt1_printk(KERN_ERR, pt1, "could not reset RAM\n"); | |
199 | return -EIO; | |
200 | } | |
201 | ||
202 | static int pt1_do_enable_ram(struct pt1 *pt1) | |
203 | { | |
204 | int i, j; | |
205 | u32 status; | |
206 | status = pt1_read_reg(pt1, 0) & 0x00000004; | |
207 | pt1_write_reg(pt1, 0, 0x00000002); | |
208 | for (i = 0; i < 10; i++) { | |
209 | for (j = 0; j < 1024; j++) { | |
210 | if ((pt1_read_reg(pt1, 0) & 0x00000004) != status) | |
211 | return 0; | |
212 | } | |
213 | schedule_timeout_uninterruptible((HZ + 999) / 1000); | |
214 | } | |
215 | pt1_printk(KERN_ERR, pt1, "could not enable RAM\n"); | |
216 | return -EIO; | |
217 | } | |
218 | ||
219 | static int pt1_enable_ram(struct pt1 *pt1) | |
220 | { | |
221 | int i, ret; | |
222 | schedule_timeout_uninterruptible((HZ + 999) / 1000); | |
223 | for (i = 0; i < 10; i++) { | |
224 | ret = pt1_do_enable_ram(pt1); | |
225 | if (ret < 0) | |
226 | return ret; | |
227 | } | |
228 | return 0; | |
229 | } | |
230 | ||
231 | static void pt1_disable_ram(struct pt1 *pt1) | |
232 | { | |
233 | pt1_write_reg(pt1, 0, 0x0b0b0000); | |
234 | } | |
235 | ||
236 | static void pt1_set_stream(struct pt1 *pt1, int index, int enabled) | |
237 | { | |
238 | pt1_write_reg(pt1, 2, 1 << (index + 8) | enabled << index); | |
239 | } | |
240 | ||
241 | static void pt1_init_streams(struct pt1 *pt1) | |
242 | { | |
243 | int i; | |
244 | for (i = 0; i < PT1_NR_ADAPS; i++) | |
245 | pt1_set_stream(pt1, i, 0); | |
246 | } | |
247 | ||
248 | static int pt1_filter(struct pt1 *pt1, struct pt1_buffer_page *page) | |
249 | { | |
250 | u32 upacket; | |
251 | int i; | |
252 | int index; | |
253 | struct pt1_adapter *adap; | |
254 | int offset; | |
255 | u8 *buf; | |
256 | ||
257 | if (!page->upackets[PT1_NR_UPACKETS - 1]) | |
258 | return 0; | |
259 | ||
260 | for (i = 0; i < PT1_NR_UPACKETS; i++) { | |
261 | upacket = le32_to_cpu(page->upackets[i]); | |
262 | index = (upacket >> 29) - 1; | |
263 | if (index < 0 || index >= PT1_NR_ADAPS) | |
264 | continue; | |
265 | ||
266 | adap = pt1->adaps[index]; | |
267 | if (upacket >> 25 & 1) | |
268 | adap->upacket_count = 0; | |
269 | else if (!adap->upacket_count) | |
270 | continue; | |
271 | ||
272 | buf = adap->buf; | |
273 | offset = adap->packet_count * 188 + adap->upacket_count * 3; | |
274 | buf[offset] = upacket >> 16; | |
275 | buf[offset + 1] = upacket >> 8; | |
276 | if (adap->upacket_count != 62) | |
277 | buf[offset + 2] = upacket; | |
278 | ||
279 | if (++adap->upacket_count >= 63) { | |
280 | adap->upacket_count = 0; | |
281 | if (++adap->packet_count >= 21) { | |
282 | dvb_dmx_swfilter_packets(&adap->demux, buf, 21); | |
283 | adap->packet_count = 0; | |
284 | } | |
285 | } | |
286 | } | |
287 | ||
288 | page->upackets[PT1_NR_UPACKETS - 1] = 0; | |
289 | return 1; | |
290 | } | |
291 | ||
292 | static int pt1_thread(void *data) | |
293 | { | |
294 | struct pt1 *pt1; | |
295 | int table_index; | |
296 | int buf_index; | |
297 | struct pt1_buffer_page *page; | |
298 | ||
299 | pt1 = data; | |
300 | set_freezable(); | |
301 | ||
302 | table_index = 0; | |
303 | buf_index = 0; | |
304 | ||
305 | while (!kthread_should_stop()) { | |
306 | try_to_freeze(); | |
307 | ||
308 | page = pt1->tables[table_index].bufs[buf_index].page; | |
309 | if (!pt1_filter(pt1, page)) { | |
310 | schedule_timeout_interruptible((HZ + 999) / 1000); | |
311 | continue; | |
312 | } | |
313 | ||
314 | if (++buf_index >= PT1_NR_BUFS) { | |
315 | pt1_increment_table_count(pt1); | |
316 | buf_index = 0; | |
317 | if (++table_index >= pt1_nr_tables) | |
318 | table_index = 0; | |
319 | } | |
320 | } | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | static void pt1_free_page(struct pt1 *pt1, void *page, dma_addr_t addr) | |
326 | { | |
327 | dma_free_coherent(&pt1->pdev->dev, PT1_PAGE_SIZE, page, addr); | |
328 | } | |
329 | ||
330 | static void *pt1_alloc_page(struct pt1 *pt1, dma_addr_t *addrp, u32 *pfnp) | |
331 | { | |
332 | void *page; | |
333 | dma_addr_t addr; | |
334 | ||
335 | page = dma_alloc_coherent(&pt1->pdev->dev, PT1_PAGE_SIZE, &addr, | |
336 | GFP_KERNEL); | |
337 | if (page == NULL) | |
338 | return NULL; | |
339 | ||
340 | BUG_ON(addr & (PT1_PAGE_SIZE - 1)); | |
341 | BUG_ON(addr >> PT1_PAGE_SHIFT >> 31 >> 1); | |
342 | ||
343 | *addrp = addr; | |
344 | *pfnp = addr >> PT1_PAGE_SHIFT; | |
345 | return page; | |
346 | } | |
347 | ||
348 | static void pt1_cleanup_buffer(struct pt1 *pt1, struct pt1_buffer *buf) | |
349 | { | |
350 | pt1_free_page(pt1, buf->page, buf->addr); | |
351 | } | |
352 | ||
353 | static int | |
354 | pt1_init_buffer(struct pt1 *pt1, struct pt1_buffer *buf, u32 *pfnp) | |
355 | { | |
356 | struct pt1_buffer_page *page; | |
357 | dma_addr_t addr; | |
358 | ||
359 | page = pt1_alloc_page(pt1, &addr, pfnp); | |
360 | if (page == NULL) | |
361 | return -ENOMEM; | |
362 | ||
363 | page->upackets[PT1_NR_UPACKETS - 1] = 0; | |
364 | ||
365 | buf->page = page; | |
366 | buf->addr = addr; | |
367 | return 0; | |
368 | } | |
369 | ||
370 | static void pt1_cleanup_table(struct pt1 *pt1, struct pt1_table *table) | |
371 | { | |
372 | int i; | |
373 | ||
374 | for (i = 0; i < PT1_NR_BUFS; i++) | |
375 | pt1_cleanup_buffer(pt1, &table->bufs[i]); | |
376 | ||
377 | pt1_free_page(pt1, table->page, table->addr); | |
378 | } | |
379 | ||
380 | static int | |
381 | pt1_init_table(struct pt1 *pt1, struct pt1_table *table, u32 *pfnp) | |
382 | { | |
383 | struct pt1_table_page *page; | |
384 | dma_addr_t addr; | |
385 | int i, ret; | |
386 | u32 buf_pfn; | |
387 | ||
388 | page = pt1_alloc_page(pt1, &addr, pfnp); | |
389 | if (page == NULL) | |
390 | return -ENOMEM; | |
391 | ||
392 | for (i = 0; i < PT1_NR_BUFS; i++) { | |
393 | ret = pt1_init_buffer(pt1, &table->bufs[i], &buf_pfn); | |
394 | if (ret < 0) | |
395 | goto err; | |
396 | ||
397 | page->buf_pfns[i] = cpu_to_le32(buf_pfn); | |
398 | } | |
399 | ||
400 | pt1_increment_table_count(pt1); | |
401 | table->page = page; | |
402 | table->addr = addr; | |
403 | return 0; | |
404 | ||
405 | err: | |
406 | while (i--) | |
407 | pt1_cleanup_buffer(pt1, &table->bufs[i]); | |
408 | ||
409 | pt1_free_page(pt1, page, addr); | |
410 | return ret; | |
411 | } | |
412 | ||
413 | static void pt1_cleanup_tables(struct pt1 *pt1) | |
414 | { | |
415 | struct pt1_table *tables; | |
416 | int i; | |
417 | ||
418 | tables = pt1->tables; | |
419 | pt1_unregister_tables(pt1); | |
420 | ||
421 | for (i = 0; i < pt1_nr_tables; i++) | |
422 | pt1_cleanup_table(pt1, &tables[i]); | |
423 | ||
424 | vfree(tables); | |
425 | } | |
426 | ||
427 | static int pt1_init_tables(struct pt1 *pt1) | |
428 | { | |
429 | struct pt1_table *tables; | |
430 | int i, ret; | |
431 | u32 first_pfn, pfn; | |
432 | ||
433 | tables = vmalloc(sizeof(struct pt1_table) * pt1_nr_tables); | |
434 | if (tables == NULL) | |
435 | return -ENOMEM; | |
436 | ||
437 | pt1_init_table_count(pt1); | |
438 | ||
439 | i = 0; | |
440 | if (pt1_nr_tables) { | |
441 | ret = pt1_init_table(pt1, &tables[0], &first_pfn); | |
442 | if (ret) | |
443 | goto err; | |
444 | i++; | |
445 | } | |
446 | ||
447 | while (i < pt1_nr_tables) { | |
448 | ret = pt1_init_table(pt1, &tables[i], &pfn); | |
449 | if (ret) | |
450 | goto err; | |
451 | tables[i - 1].page->next_pfn = cpu_to_le32(pfn); | |
452 | i++; | |
453 | } | |
454 | ||
455 | tables[pt1_nr_tables - 1].page->next_pfn = cpu_to_le32(first_pfn); | |
456 | ||
457 | pt1_register_tables(pt1, first_pfn); | |
458 | pt1->tables = tables; | |
459 | return 0; | |
460 | ||
461 | err: | |
462 | while (i--) | |
463 | pt1_cleanup_table(pt1, &tables[i]); | |
464 | ||
465 | vfree(tables); | |
466 | return ret; | |
467 | } | |
468 | ||
469 | static int pt1_start_feed(struct dvb_demux_feed *feed) | |
470 | { | |
471 | struct pt1_adapter *adap; | |
472 | adap = container_of(feed->demux, struct pt1_adapter, demux); | |
473 | if (!adap->users++) | |
474 | pt1_set_stream(adap->pt1, adap->index, 1); | |
475 | return 0; | |
476 | } | |
477 | ||
478 | static int pt1_stop_feed(struct dvb_demux_feed *feed) | |
479 | { | |
480 | struct pt1_adapter *adap; | |
481 | adap = container_of(feed->demux, struct pt1_adapter, demux); | |
482 | if (!--adap->users) | |
483 | pt1_set_stream(adap->pt1, adap->index, 0); | |
484 | return 0; | |
485 | } | |
486 | ||
487 | static void | |
488 | pt1_set_power(struct pt1 *pt1, int power, int lnb, int reset) | |
489 | { | |
490 | pt1_write_reg(pt1, 1, power | lnb << 1 | !reset << 3); | |
491 | } | |
492 | ||
493 | static int pt1_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage) | |
494 | { | |
495 | struct pt1_adapter *adap; | |
496 | int lnb; | |
497 | ||
498 | adap = container_of(fe->dvb, struct pt1_adapter, adap); | |
499 | ||
500 | switch (voltage) { | |
501 | case SEC_VOLTAGE_13: /* actually 11V */ | |
502 | lnb = 2; | |
503 | break; | |
504 | case SEC_VOLTAGE_18: /* actually 15V */ | |
505 | lnb = 3; | |
506 | break; | |
507 | case SEC_VOLTAGE_OFF: | |
508 | lnb = 0; | |
509 | break; | |
510 | default: | |
511 | return -EINVAL; | |
512 | } | |
513 | ||
514 | pt1_set_power(adap->pt1, 1, lnb, 0); | |
515 | ||
516 | if (adap->orig_set_voltage) | |
517 | return adap->orig_set_voltage(fe, voltage); | |
518 | else | |
519 | return 0; | |
520 | } | |
521 | ||
522 | static void pt1_free_adapter(struct pt1_adapter *adap) | |
523 | { | |
524 | dvb_unregister_frontend(adap->fe); | |
525 | dvb_net_release(&adap->net); | |
526 | adap->demux.dmx.close(&adap->demux.dmx); | |
527 | dvb_dmxdev_release(&adap->dmxdev); | |
528 | dvb_dmx_release(&adap->demux); | |
529 | dvb_unregister_adapter(&adap->adap); | |
530 | free_page((unsigned long)adap->buf); | |
531 | kfree(adap); | |
532 | } | |
533 | ||
534 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); | |
535 | ||
536 | static struct pt1_adapter * | |
537 | pt1_alloc_adapter(struct pt1 *pt1, struct dvb_frontend *fe) | |
538 | { | |
539 | struct pt1_adapter *adap; | |
540 | void *buf; | |
541 | struct dvb_adapter *dvb_adap; | |
542 | struct dvb_demux *demux; | |
543 | struct dmxdev *dmxdev; | |
544 | int ret; | |
545 | ||
546 | adap = kzalloc(sizeof(struct pt1_adapter), GFP_KERNEL); | |
547 | if (!adap) { | |
548 | ret = -ENOMEM; | |
549 | goto err; | |
550 | } | |
551 | ||
552 | adap->pt1 = pt1; | |
553 | ||
554 | adap->orig_set_voltage = fe->ops.set_voltage; | |
555 | fe->ops.set_voltage = pt1_set_voltage; | |
556 | ||
557 | buf = (u8 *)__get_free_page(GFP_KERNEL); | |
558 | if (!buf) { | |
559 | ret = -ENOMEM; | |
560 | goto err_kfree; | |
561 | } | |
562 | ||
563 | adap->buf = buf; | |
564 | adap->upacket_count = 0; | |
565 | adap->packet_count = 0; | |
566 | ||
567 | dvb_adap = &adap->adap; | |
568 | dvb_adap->priv = adap; | |
569 | ret = dvb_register_adapter(dvb_adap, DRIVER_NAME, THIS_MODULE, | |
570 | &pt1->pdev->dev, adapter_nr); | |
571 | if (ret < 0) | |
572 | goto err_free_page; | |
573 | ||
574 | demux = &adap->demux; | |
575 | demux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; | |
576 | demux->priv = adap; | |
577 | demux->feednum = 256; | |
578 | demux->filternum = 256; | |
579 | demux->start_feed = pt1_start_feed; | |
580 | demux->stop_feed = pt1_stop_feed; | |
581 | demux->write_to_decoder = NULL; | |
582 | ret = dvb_dmx_init(demux); | |
583 | if (ret < 0) | |
584 | goto err_unregister_adapter; | |
585 | ||
586 | dmxdev = &adap->dmxdev; | |
587 | dmxdev->filternum = 256; | |
588 | dmxdev->demux = &demux->dmx; | |
589 | dmxdev->capabilities = 0; | |
590 | ret = dvb_dmxdev_init(dmxdev, dvb_adap); | |
591 | if (ret < 0) | |
592 | goto err_dmx_release; | |
593 | ||
594 | dvb_net_init(dvb_adap, &adap->net, &demux->dmx); | |
595 | ||
596 | ret = dvb_register_frontend(dvb_adap, fe); | |
597 | if (ret < 0) | |
598 | goto err_net_release; | |
599 | adap->fe = fe; | |
600 | ||
601 | return adap; | |
602 | ||
603 | err_net_release: | |
604 | dvb_net_release(&adap->net); | |
605 | adap->demux.dmx.close(&adap->demux.dmx); | |
606 | dvb_dmxdev_release(&adap->dmxdev); | |
607 | err_dmx_release: | |
608 | dvb_dmx_release(demux); | |
609 | err_unregister_adapter: | |
610 | dvb_unregister_adapter(dvb_adap); | |
611 | err_free_page: | |
612 | free_page((unsigned long)buf); | |
613 | err_kfree: | |
614 | kfree(adap); | |
615 | err: | |
616 | return ERR_PTR(ret); | |
617 | } | |
618 | ||
619 | static void pt1_cleanup_adapters(struct pt1 *pt1) | |
620 | { | |
621 | int i; | |
622 | for (i = 0; i < PT1_NR_ADAPS; i++) | |
623 | pt1_free_adapter(pt1->adaps[i]); | |
624 | } | |
625 | ||
626 | struct pt1_config { | |
627 | struct va1j5jf8007s_config va1j5jf8007s_config; | |
628 | struct va1j5jf8007t_config va1j5jf8007t_config; | |
629 | }; | |
630 | ||
631 | static const struct pt1_config pt1_configs[2] = { | |
632 | { | |
633 | { .demod_address = 0x1b }, | |
634 | { .demod_address = 0x1a }, | |
635 | }, { | |
636 | { .demod_address = 0x19 }, | |
637 | { .demod_address = 0x18 }, | |
638 | }, | |
639 | }; | |
640 | ||
641 | static int pt1_init_adapters(struct pt1 *pt1) | |
642 | { | |
643 | int i, j; | |
644 | struct i2c_adapter *i2c_adap; | |
645 | const struct pt1_config *config; | |
646 | struct dvb_frontend *fe[4]; | |
647 | struct pt1_adapter *adap; | |
648 | int ret; | |
649 | ||
650 | i = 0; | |
651 | j = 0; | |
652 | ||
653 | i2c_adap = &pt1->i2c_adap; | |
654 | do { | |
655 | config = &pt1_configs[i / 2]; | |
656 | ||
657 | fe[i] = va1j5jf8007s_attach(&config->va1j5jf8007s_config, | |
658 | i2c_adap); | |
659 | if (!fe[i]) { | |
660 | ret = -ENODEV; /* This does not sound nice... */ | |
661 | goto err; | |
662 | } | |
663 | i++; | |
664 | ||
665 | fe[i] = va1j5jf8007t_attach(&config->va1j5jf8007t_config, | |
666 | i2c_adap); | |
667 | if (!fe[i]) { | |
668 | ret = -ENODEV; | |
669 | goto err; | |
670 | } | |
671 | i++; | |
672 | ||
673 | ret = va1j5jf8007s_prepare(fe[i - 2]); | |
674 | if (ret < 0) | |
675 | goto err; | |
676 | ||
677 | ret = va1j5jf8007t_prepare(fe[i - 1]); | |
678 | if (ret < 0) | |
679 | goto err; | |
680 | ||
681 | } while (i < 4); | |
682 | ||
683 | do { | |
684 | adap = pt1_alloc_adapter(pt1, fe[j]); | |
685 | if (IS_ERR(adap)) | |
686 | goto err; | |
687 | adap->index = j; | |
688 | pt1->adaps[j] = adap; | |
689 | } while (++j < 4); | |
690 | ||
691 | return 0; | |
692 | ||
693 | err: | |
694 | while (i-- > j) | |
695 | fe[i]->ops.release(fe[i]); | |
696 | ||
697 | while (j--) | |
698 | pt1_free_adapter(pt1->adaps[j]); | |
699 | ||
700 | return ret; | |
701 | } | |
702 | ||
703 | static void pt1_i2c_emit(struct pt1 *pt1, int addr, int busy, int read_enable, | |
704 | int clock, int data, int next_addr) | |
705 | { | |
706 | pt1_write_reg(pt1, 4, addr << 18 | busy << 13 | read_enable << 12 | | |
707 | !clock << 11 | !data << 10 | next_addr); | |
708 | } | |
709 | ||
710 | static void pt1_i2c_write_bit(struct pt1 *pt1, int addr, int *addrp, int data) | |
711 | { | |
712 | pt1_i2c_emit(pt1, addr, 1, 0, 0, data, addr + 1); | |
713 | pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, data, addr + 2); | |
714 | pt1_i2c_emit(pt1, addr + 2, 1, 0, 0, data, addr + 3); | |
715 | *addrp = addr + 3; | |
716 | } | |
717 | ||
718 | static void pt1_i2c_read_bit(struct pt1 *pt1, int addr, int *addrp) | |
719 | { | |
720 | pt1_i2c_emit(pt1, addr, 1, 0, 0, 1, addr + 1); | |
721 | pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 1, addr + 2); | |
722 | pt1_i2c_emit(pt1, addr + 2, 1, 1, 1, 1, addr + 3); | |
723 | pt1_i2c_emit(pt1, addr + 3, 1, 0, 0, 1, addr + 4); | |
724 | *addrp = addr + 4; | |
725 | } | |
726 | ||
727 | static void pt1_i2c_write_byte(struct pt1 *pt1, int addr, int *addrp, int data) | |
728 | { | |
729 | int i; | |
730 | for (i = 0; i < 8; i++) | |
731 | pt1_i2c_write_bit(pt1, addr, &addr, data >> (7 - i) & 1); | |
732 | pt1_i2c_write_bit(pt1, addr, &addr, 1); | |
733 | *addrp = addr; | |
734 | } | |
735 | ||
736 | static void pt1_i2c_read_byte(struct pt1 *pt1, int addr, int *addrp, int last) | |
737 | { | |
738 | int i; | |
739 | for (i = 0; i < 8; i++) | |
740 | pt1_i2c_read_bit(pt1, addr, &addr); | |
741 | pt1_i2c_write_bit(pt1, addr, &addr, last); | |
742 | *addrp = addr; | |
743 | } | |
744 | ||
745 | static void pt1_i2c_prepare(struct pt1 *pt1, int addr, int *addrp) | |
746 | { | |
747 | pt1_i2c_emit(pt1, addr, 1, 0, 1, 1, addr + 1); | |
748 | pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 0, addr + 2); | |
749 | pt1_i2c_emit(pt1, addr + 2, 1, 0, 0, 0, addr + 3); | |
750 | *addrp = addr + 3; | |
751 | } | |
752 | ||
753 | static void | |
754 | pt1_i2c_write_msg(struct pt1 *pt1, int addr, int *addrp, struct i2c_msg *msg) | |
755 | { | |
756 | int i; | |
757 | pt1_i2c_prepare(pt1, addr, &addr); | |
758 | pt1_i2c_write_byte(pt1, addr, &addr, msg->addr << 1); | |
759 | for (i = 0; i < msg->len; i++) | |
760 | pt1_i2c_write_byte(pt1, addr, &addr, msg->buf[i]); | |
761 | *addrp = addr; | |
762 | } | |
763 | ||
764 | static void | |
765 | pt1_i2c_read_msg(struct pt1 *pt1, int addr, int *addrp, struct i2c_msg *msg) | |
766 | { | |
767 | int i; | |
768 | pt1_i2c_prepare(pt1, addr, &addr); | |
769 | pt1_i2c_write_byte(pt1, addr, &addr, msg->addr << 1 | 1); | |
770 | for (i = 0; i < msg->len; i++) | |
771 | pt1_i2c_read_byte(pt1, addr, &addr, i == msg->len - 1); | |
772 | *addrp = addr; | |
773 | } | |
774 | ||
775 | static int pt1_i2c_end(struct pt1 *pt1, int addr) | |
776 | { | |
777 | pt1_i2c_emit(pt1, addr, 1, 0, 0, 0, addr + 1); | |
778 | pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 0, addr + 2); | |
779 | pt1_i2c_emit(pt1, addr + 2, 1, 0, 1, 1, 0); | |
780 | ||
781 | pt1_write_reg(pt1, 0, 0x00000004); | |
782 | do { | |
783 | if (signal_pending(current)) | |
784 | return -EINTR; | |
785 | schedule_timeout_interruptible((HZ + 999) / 1000); | |
786 | } while (pt1_read_reg(pt1, 0) & 0x00000080); | |
787 | return 0; | |
788 | } | |
789 | ||
790 | static void pt1_i2c_begin(struct pt1 *pt1, int *addrp) | |
791 | { | |
792 | int addr; | |
793 | addr = 0; | |
794 | ||
795 | pt1_i2c_emit(pt1, addr, 0, 0, 1, 1, addr /* itself */); | |
796 | addr = addr + 1; | |
797 | ||
798 | if (!pt1->i2c_running) { | |
799 | pt1_i2c_emit(pt1, addr, 1, 0, 1, 1, addr + 1); | |
800 | pt1_i2c_emit(pt1, addr + 1, 1, 0, 1, 0, addr + 2); | |
801 | addr = addr + 2; | |
802 | pt1->i2c_running = 1; | |
803 | } | |
804 | *addrp = addr; | |
805 | } | |
806 | ||
807 | static int pt1_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) | |
808 | { | |
809 | struct pt1 *pt1; | |
810 | int i; | |
811 | struct i2c_msg *msg, *next_msg; | |
812 | int addr, ret; | |
813 | u16 len; | |
814 | u32 word; | |
815 | ||
816 | pt1 = i2c_get_adapdata(adap); | |
817 | ||
818 | for (i = 0; i < num; i++) { | |
819 | msg = &msgs[i]; | |
820 | if (msg->flags & I2C_M_RD) | |
821 | return -ENOTSUPP; | |
822 | ||
823 | if (i + 1 < num) | |
824 | next_msg = &msgs[i + 1]; | |
825 | else | |
826 | next_msg = NULL; | |
827 | ||
828 | if (next_msg && next_msg->flags & I2C_M_RD) { | |
829 | i++; | |
830 | ||
831 | len = next_msg->len; | |
832 | if (len > 4) | |
833 | return -ENOTSUPP; | |
834 | ||
835 | pt1_i2c_begin(pt1, &addr); | |
836 | pt1_i2c_write_msg(pt1, addr, &addr, msg); | |
837 | pt1_i2c_read_msg(pt1, addr, &addr, next_msg); | |
838 | ret = pt1_i2c_end(pt1, addr); | |
839 | if (ret < 0) | |
840 | return ret; | |
841 | ||
842 | word = pt1_read_reg(pt1, 2); | |
843 | while (len--) { | |
844 | next_msg->buf[len] = word; | |
845 | word >>= 8; | |
846 | } | |
847 | } else { | |
848 | pt1_i2c_begin(pt1, &addr); | |
849 | pt1_i2c_write_msg(pt1, addr, &addr, msg); | |
850 | ret = pt1_i2c_end(pt1, addr); | |
851 | if (ret < 0) | |
852 | return ret; | |
853 | } | |
854 | } | |
855 | ||
856 | return num; | |
857 | } | |
858 | ||
859 | static u32 pt1_i2c_func(struct i2c_adapter *adap) | |
860 | { | |
861 | return I2C_FUNC_I2C; | |
862 | } | |
863 | ||
864 | static const struct i2c_algorithm pt1_i2c_algo = { | |
865 | .master_xfer = pt1_i2c_xfer, | |
866 | .functionality = pt1_i2c_func, | |
867 | }; | |
868 | ||
869 | static void pt1_i2c_wait(struct pt1 *pt1) | |
870 | { | |
871 | int i; | |
872 | for (i = 0; i < 128; i++) | |
873 | pt1_i2c_emit(pt1, 0, 0, 0, 1, 1, 0); | |
874 | } | |
875 | ||
876 | static void pt1_i2c_init(struct pt1 *pt1) | |
877 | { | |
878 | int i; | |
879 | for (i = 0; i < 1024; i++) | |
880 | pt1_i2c_emit(pt1, i, 0, 0, 1, 1, 0); | |
881 | } | |
882 | ||
883 | static void __devexit pt1_remove(struct pci_dev *pdev) | |
884 | { | |
885 | struct pt1 *pt1; | |
886 | void __iomem *regs; | |
887 | ||
888 | pt1 = pci_get_drvdata(pdev); | |
889 | regs = pt1->regs; | |
890 | ||
891 | kthread_stop(pt1->kthread); | |
892 | pt1_cleanup_tables(pt1); | |
893 | pt1_cleanup_adapters(pt1); | |
894 | pt1_disable_ram(pt1); | |
895 | pt1_set_power(pt1, 0, 0, 1); | |
896 | i2c_del_adapter(&pt1->i2c_adap); | |
897 | pci_set_drvdata(pdev, NULL); | |
898 | kfree(pt1); | |
899 | pci_iounmap(pdev, regs); | |
900 | pci_release_regions(pdev); | |
901 | pci_disable_device(pdev); | |
902 | } | |
903 | ||
904 | static int __devinit | |
905 | pt1_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
906 | { | |
907 | int ret; | |
908 | void __iomem *regs; | |
909 | struct pt1 *pt1; | |
910 | struct i2c_adapter *i2c_adap; | |
911 | struct task_struct *kthread; | |
912 | ||
913 | ret = pci_enable_device(pdev); | |
914 | if (ret < 0) | |
915 | goto err; | |
916 | ||
84d6ae43 | 917 | ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
3d17fb1b MCC |
918 | if (ret < 0) |
919 | goto err_pci_disable_device; | |
920 | ||
921 | pci_set_master(pdev); | |
922 | ||
923 | ret = pci_request_regions(pdev, DRIVER_NAME); | |
924 | if (ret < 0) | |
925 | goto err_pci_disable_device; | |
926 | ||
927 | regs = pci_iomap(pdev, 0, 0); | |
928 | if (!regs) { | |
929 | ret = -EIO; | |
930 | goto err_pci_release_regions; | |
931 | } | |
932 | ||
933 | pt1 = kzalloc(sizeof(struct pt1), GFP_KERNEL); | |
934 | if (!pt1) { | |
935 | ret = -ENOMEM; | |
936 | goto err_pci_iounmap; | |
937 | } | |
938 | ||
939 | pt1->pdev = pdev; | |
940 | pt1->regs = regs; | |
941 | pci_set_drvdata(pdev, pt1); | |
942 | ||
943 | i2c_adap = &pt1->i2c_adap; | |
944 | i2c_adap->class = I2C_CLASS_TV_DIGITAL; | |
945 | i2c_adap->algo = &pt1_i2c_algo; | |
946 | i2c_adap->algo_data = NULL; | |
947 | i2c_adap->dev.parent = &pdev->dev; | |
948 | i2c_set_adapdata(i2c_adap, pt1); | |
949 | ret = i2c_add_adapter(i2c_adap); | |
950 | if (ret < 0) | |
951 | goto err_kfree; | |
952 | ||
953 | pt1_set_power(pt1, 0, 0, 1); | |
954 | ||
955 | pt1_i2c_init(pt1); | |
956 | pt1_i2c_wait(pt1); | |
957 | ||
958 | ret = pt1_sync(pt1); | |
959 | if (ret < 0) | |
960 | goto err_i2c_del_adapter; | |
961 | ||
962 | pt1_identify(pt1); | |
963 | ||
964 | ret = pt1_unlock(pt1); | |
965 | if (ret < 0) | |
966 | goto err_i2c_del_adapter; | |
967 | ||
968 | ret = pt1_reset_pci(pt1); | |
969 | if (ret < 0) | |
970 | goto err_i2c_del_adapter; | |
971 | ||
972 | ret = pt1_reset_ram(pt1); | |
973 | if (ret < 0) | |
974 | goto err_i2c_del_adapter; | |
975 | ||
976 | ret = pt1_enable_ram(pt1); | |
977 | if (ret < 0) | |
978 | goto err_i2c_del_adapter; | |
979 | ||
980 | pt1_init_streams(pt1); | |
981 | ||
982 | pt1_set_power(pt1, 1, 0, 1); | |
983 | schedule_timeout_uninterruptible((HZ + 49) / 50); | |
984 | ||
985 | pt1_set_power(pt1, 1, 0, 0); | |
986 | schedule_timeout_uninterruptible((HZ + 999) / 1000); | |
987 | ||
988 | ret = pt1_init_adapters(pt1); | |
989 | if (ret < 0) | |
990 | goto err_pt1_disable_ram; | |
991 | ||
992 | ret = pt1_init_tables(pt1); | |
993 | if (ret < 0) | |
994 | goto err_pt1_cleanup_adapters; | |
995 | ||
996 | kthread = kthread_run(pt1_thread, pt1, "pt1"); | |
997 | if (IS_ERR(kthread)) { | |
998 | ret = PTR_ERR(kthread); | |
999 | goto err_pt1_cleanup_tables; | |
1000 | } | |
1001 | ||
1002 | pt1->kthread = kthread; | |
1003 | return 0; | |
1004 | ||
1005 | err_pt1_cleanup_tables: | |
1006 | pt1_cleanup_tables(pt1); | |
1007 | err_pt1_cleanup_adapters: | |
1008 | pt1_cleanup_adapters(pt1); | |
1009 | err_pt1_disable_ram: | |
1010 | pt1_disable_ram(pt1); | |
1011 | pt1_set_power(pt1, 0, 0, 1); | |
1012 | err_i2c_del_adapter: | |
1013 | i2c_del_adapter(i2c_adap); | |
1014 | err_kfree: | |
1015 | pci_set_drvdata(pdev, NULL); | |
1016 | kfree(pt1); | |
1017 | err_pci_iounmap: | |
1018 | pci_iounmap(pdev, regs); | |
1019 | err_pci_release_regions: | |
1020 | pci_release_regions(pdev); | |
1021 | err_pci_disable_device: | |
1022 | pci_disable_device(pdev); | |
1023 | err: | |
1024 | return ret; | |
1025 | ||
1026 | } | |
1027 | ||
1028 | static struct pci_device_id pt1_id_table[] = { | |
1029 | { PCI_DEVICE(0x10ee, 0x211a) }, | |
1030 | { }, | |
1031 | }; | |
1032 | MODULE_DEVICE_TABLE(pci, pt1_id_table); | |
1033 | ||
1034 | static struct pci_driver pt1_driver = { | |
1035 | .name = DRIVER_NAME, | |
1036 | .probe = pt1_probe, | |
1037 | .remove = __devexit_p(pt1_remove), | |
1038 | .id_table = pt1_id_table, | |
1039 | }; | |
1040 | ||
1041 | ||
1042 | static int __init pt1_init(void) | |
1043 | { | |
1044 | return pci_register_driver(&pt1_driver); | |
1045 | } | |
1046 | ||
1047 | ||
1048 | static void __exit pt1_cleanup(void) | |
1049 | { | |
1050 | pci_unregister_driver(&pt1_driver); | |
1051 | } | |
1052 | ||
1053 | module_init(pt1_init); | |
1054 | module_exit(pt1_cleanup); | |
1055 | ||
1056 | MODULE_AUTHOR("Takahito HIRANO <hiranotaka@zng.info>"); | |
1057 | MODULE_DESCRIPTION("Earthsoft PT1 Driver"); | |
1058 | MODULE_LICENSE("GPL"); |