1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * budget-core.c: driver for the SAA7146 based Budget DVB cards |
4 | * |
5 | * Compiled from various sources by Michael Hunold <michael@mihu.de> |
6 | * |
7 | * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de> |
8 | * |
9 | * Copyright (C) 1999-2002 Ralph Metzler |
10 | * & Marcus Metzler for convergence integrated media GmbH |
11 | * |
12 | * 26feb2004 Support for FS Activy Card (Grundig tuner) by |
13 | * Michael Dreher <michael@5dot1.de>, |
14 | * Oliver Endriss <o.endriss@gmx.de>, |
15 | * Andreas 'randy' Weinberger |
16 | * |
17 | * the project's page is at https://linuxtv.org |
18 | */ |
19 | |
20 | |
21 | #include "budget.h" |
22 | #include "ttpci-eeprom.h" |
23 | |
24 | #define TS_WIDTH (2 * TS_SIZE) |
25 | #define TS_WIDTH_ACTIVY TS_SIZE |
26 | #define TS_WIDTH_DVBC TS_SIZE |
27 | #define TS_HEIGHT_MASK 0xf00 |
28 | #define TS_HEIGHT_MASK_ACTIVY 0xc00 |
29 | #define TS_HEIGHT_MASK_DVBC 0xe00 |
30 | #define TS_MIN_BUFSIZE_K 188 |
31 | #define TS_MAX_BUFSIZE_K 1410 |
32 | #define TS_MAX_BUFSIZE_K_ACTIVY 564 |
33 | #define TS_MAX_BUFSIZE_K_DVBC 1316 |
34 | #define BUFFER_WARNING_WAIT (30*HZ) |
35 | |
36 | int budget_debug; |
37 | static int dma_buffer_size = TS_MIN_BUFSIZE_K; |
38 | module_param_named(debug, budget_debug, int, 0644); |
39 | module_param_named(bufsize, dma_buffer_size, int, 0444); |
40 | MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off)." ); |
41 | MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)" ); |
42 | |
43 | /**************************************************************************** |
44 | * TT budget / WinTV Nova |
45 | ****************************************************************************/ |
46 | |
47 | static int stop_ts_capture(struct budget *budget) |
48 | { |
49 | dprintk(2, "budget: %p\n" , budget); |
50 | |
51 | saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off |
52 | SAA7146_IER_DISABLE(x: budget->dev, MASK_10); |
53 | return 0; |
54 | } |
55 | |
56 | static int start_ts_capture(struct budget *budget) |
57 | { |
58 | struct saa7146_dev *dev = budget->dev; |
59 | |
60 | dprintk(2, "budget: %p\n" , budget); |
61 | |
62 | if (!budget->feeding || !budget->fe_synced) |
63 | return 0; |
64 | |
65 | saa7146_write(dev, MC1, MASK_20); // DMA3 off |
66 | |
67 | memset(budget->grabbing, 0x00, budget->buffer_size); |
68 | |
69 | saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000)); |
70 | |
71 | budget->ttbp = 0; |
72 | |
73 | /* |
74 | * Signal path on the Activy: |
75 | * |
76 | * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory |
77 | * |
78 | * Since the tuner feeds 204 bytes packets into the SAA7146, |
79 | * DMA3 is configured to strip the trailing 16 FEC bytes: |
80 | * Pitch: 188, NumBytes3: 188, NumLines3: 1024 |
81 | */ |
82 | |
83 | switch(budget->card->type) { |
84 | case BUDGET_FS_ACTIVY: |
85 | saa7146_write(dev, DD1_INIT, 0x04000000); |
86 | saa7146_write(dev, MC2, (MASK_09 | MASK_25)); |
87 | saa7146_write(dev, BRS_CTRL, 0x00000000); |
88 | break; |
89 | case BUDGET_PATCH: |
90 | saa7146_write(dev, DD1_INIT, 0x00000200); |
91 | saa7146_write(dev, MC2, (MASK_10 | MASK_26)); |
92 | saa7146_write(dev, BRS_CTRL, 0x60000000); |
93 | break; |
94 | case BUDGET_CIN1200C_MK3: |
95 | case BUDGET_KNC1C_MK3: |
96 | case BUDGET_KNC1C_TDA10024: |
97 | case BUDGET_KNC1CP_MK3: |
98 | if (budget->video_port == BUDGET_VIDEO_PORTA) { |
99 | saa7146_write(dev, DD1_INIT, 0x06000200); |
100 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
101 | saa7146_write(dev, BRS_CTRL, 0x00000000); |
102 | } else { |
103 | saa7146_write(dev, DD1_INIT, 0x00000600); |
104 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
105 | saa7146_write(dev, BRS_CTRL, 0x60000000); |
106 | } |
107 | break; |
108 | default: |
109 | if (budget->video_port == BUDGET_VIDEO_PORTA) { |
110 | saa7146_write(dev, DD1_INIT, 0x06000200); |
111 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
112 | saa7146_write(dev, BRS_CTRL, 0x00000000); |
113 | } else { |
114 | saa7146_write(dev, DD1_INIT, 0x02000600); |
115 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
116 | saa7146_write(dev, BRS_CTRL, 0x60000000); |
117 | } |
118 | } |
119 | |
120 | saa7146_write(dev, MC2, (MASK_08 | MASK_24)); |
121 | mdelay(10); |
122 | |
123 | saa7146_write(dev, BASE_ODD3, 0); |
124 | if (budget->buffer_size > budget->buffer_height * budget->buffer_width) { |
125 | // using odd/even buffers |
126 | saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width); |
127 | } else { |
128 | // using a single buffer |
129 | saa7146_write(dev, BASE_EVEN3, 0); |
130 | } |
131 | saa7146_write(dev, PROT_ADDR3, budget->buffer_size); |
132 | saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90); |
133 | |
134 | saa7146_write(dev, PITCH3, budget->buffer_width); |
135 | saa7146_write(dev, NUM_LINE_BYTE3, |
136 | (budget->buffer_height << 16) | budget->buffer_width); |
137 | |
138 | saa7146_write(dev, MC2, (MASK_04 | MASK_20)); |
139 | |
140 | SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */ |
141 | SAA7146_IER_ENABLE(x: budget->dev, MASK_10); /* VPE */ |
142 | saa7146_write(dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */ |
143 | |
144 | return 0; |
145 | } |
146 | |
147 | static int budget_read_fe_status(struct dvb_frontend *fe, |
148 | enum fe_status *status) |
149 | { |
150 | struct budget *budget = fe->dvb->priv; |
151 | int synced; |
152 | int ret; |
153 | |
154 | if (budget->read_fe_status) |
155 | ret = budget->read_fe_status(fe, status); |
156 | else |
157 | ret = -EINVAL; |
158 | |
159 | if (!ret) { |
160 | synced = (*status & FE_HAS_LOCK); |
161 | if (synced != budget->fe_synced) { |
162 | budget->fe_synced = synced; |
163 | spin_lock(lock: &budget->feedlock); |
164 | if (synced) |
165 | start_ts_capture(budget); |
166 | else |
167 | stop_ts_capture(budget); |
168 | spin_unlock(lock: &budget->feedlock); |
169 | } |
170 | } |
171 | return ret; |
172 | } |
173 | |
174 | static void vpeirq(struct tasklet_struct *t) |
175 | { |
176 | struct budget *budget = from_tasklet(budget, t, vpe_tasklet); |
177 | u8 *mem = (u8 *) (budget->grabbing); |
178 | u32 olddma = budget->ttbp; |
179 | u32 newdma = saa7146_read(budget->dev, PCI_VDP3); |
180 | u32 count; |
181 | |
182 | /* Ensure streamed PCI data is synced to CPU */ |
183 | dma_sync_sg_for_cpu(dev: &budget->dev->pci->dev, sg: budget->pt.slist, |
184 | nelems: budget->pt.nents, dir: DMA_FROM_DEVICE); |
185 | |
186 | /* nearest lower position divisible by 188 */ |
187 | newdma -= newdma % 188; |
188 | |
189 | if (newdma >= budget->buffer_size) |
190 | return; |
191 | |
192 | budget->ttbp = newdma; |
193 | |
194 | if (budget->feeding == 0 || newdma == olddma) |
195 | return; |
196 | |
197 | if (newdma > olddma) { /* no wraparound, dump olddma..newdma */ |
198 | count = newdma - olddma; |
199 | dvb_dmx_swfilter_packets(demux: &budget->demux, buf: mem + olddma, count: count / 188); |
200 | } else { /* wraparound, dump olddma..buflen and 0..newdma */ |
201 | count = budget->buffer_size - olddma; |
202 | dvb_dmx_swfilter_packets(demux: &budget->demux, buf: mem + olddma, count: count / 188); |
203 | count += newdma; |
204 | dvb_dmx_swfilter_packets(demux: &budget->demux, buf: mem, count: newdma / 188); |
205 | } |
206 | |
207 | if (count > budget->buffer_warning_threshold) |
208 | budget->buffer_warnings++; |
209 | |
210 | if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) { |
211 | printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n" , |
212 | budget->dev->name, __func__, budget->buffer_warnings, count); |
213 | budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT; |
214 | budget->buffer_warnings = 0; |
215 | } |
216 | } |
217 | |
218 | |
219 | static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config, |
220 | int addr, int count, int nobusyloop) |
221 | { |
222 | struct saa7146_dev *saa = budget->dev; |
223 | int result; |
224 | |
225 | result = saa7146_wait_for_debi_done(dev: saa, nobusyloop); |
226 | if (result < 0) |
227 | return result; |
228 | |
229 | saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff)); |
230 | saa7146_write(saa, DEBI_CONFIG, config); |
231 | saa7146_write(saa, DEBI_PAGE, 0); |
232 | saa7146_write(saa, MC2, (2 << 16) | 2); |
233 | |
234 | result = saa7146_wait_for_debi_done(dev: saa, nobusyloop); |
235 | if (result < 0) |
236 | return result; |
237 | |
238 | result = saa7146_read(saa, DEBI_AD); |
239 | result &= (0xffffffffUL >> ((4 - count) * 8)); |
240 | return result; |
241 | } |
242 | |
243 | int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count, |
244 | int uselocks, int nobusyloop) |
245 | { |
246 | if (count > 4 || count <= 0) |
247 | return 0; |
248 | |
249 | if (uselocks) { |
250 | unsigned long flags; |
251 | int result; |
252 | |
253 | spin_lock_irqsave(&budget->debilock, flags); |
254 | result = ttpci_budget_debiread_nolock(budget, config, addr, |
255 | count, nobusyloop); |
256 | spin_unlock_irqrestore(lock: &budget->debilock, flags); |
257 | return result; |
258 | } |
259 | return ttpci_budget_debiread_nolock(budget, config, addr, |
260 | count, nobusyloop); |
261 | } |
262 | |
263 | static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config, |
264 | int addr, int count, u32 value, int nobusyloop) |
265 | { |
266 | struct saa7146_dev *saa = budget->dev; |
267 | int result; |
268 | |
269 | result = saa7146_wait_for_debi_done(dev: saa, nobusyloop); |
270 | if (result < 0) |
271 | return result; |
272 | |
273 | saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff)); |
274 | saa7146_write(saa, DEBI_CONFIG, config); |
275 | saa7146_write(saa, DEBI_PAGE, 0); |
276 | saa7146_write(saa, DEBI_AD, value); |
277 | saa7146_write(saa, MC2, (2 << 16) | 2); |
278 | |
279 | result = saa7146_wait_for_debi_done(dev: saa, nobusyloop); |
280 | return result < 0 ? result : 0; |
281 | } |
282 | |
283 | int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr, |
284 | int count, u32 value, int uselocks, int nobusyloop) |
285 | { |
286 | if (count > 4 || count <= 0) |
287 | return 0; |
288 | |
289 | if (uselocks) { |
290 | unsigned long flags; |
291 | int result; |
292 | |
293 | spin_lock_irqsave(&budget->debilock, flags); |
294 | result = ttpci_budget_debiwrite_nolock(budget, config, addr, |
295 | count, value, nobusyloop); |
296 | spin_unlock_irqrestore(lock: &budget->debilock, flags); |
297 | return result; |
298 | } |
299 | return ttpci_budget_debiwrite_nolock(budget, config, addr, |
300 | count, value, nobusyloop); |
301 | } |
302 | |
303 | |
304 | /**************************************************************************** |
305 | * DVB API SECTION |
306 | ****************************************************************************/ |
307 | |
308 | static int budget_start_feed(struct dvb_demux_feed *feed) |
309 | { |
310 | struct dvb_demux *demux = feed->demux; |
311 | struct budget *budget = demux->priv; |
312 | int status = 0; |
313 | |
314 | dprintk(2, "budget: %p\n" , budget); |
315 | |
316 | if (!demux->dmx.frontend) |
317 | return -EINVAL; |
318 | |
319 | spin_lock(lock: &budget->feedlock); |
320 | feed->pusi_seen = false; /* have a clean section start */ |
321 | if (budget->feeding++ == 0) |
322 | status = start_ts_capture(budget); |
323 | spin_unlock(lock: &budget->feedlock); |
324 | return status; |
325 | } |
326 | |
327 | static int budget_stop_feed(struct dvb_demux_feed *feed) |
328 | { |
329 | struct dvb_demux *demux = feed->demux; |
330 | struct budget *budget = demux->priv; |
331 | int status = 0; |
332 | |
333 | dprintk(2, "budget: %p\n" , budget); |
334 | |
335 | spin_lock(lock: &budget->feedlock); |
336 | if (--budget->feeding == 0) |
337 | status = stop_ts_capture(budget); |
338 | spin_unlock(lock: &budget->feedlock); |
339 | return status; |
340 | } |
341 | |
342 | static int budget_register(struct budget *budget) |
343 | { |
344 | struct dvb_demux *dvbdemux = &budget->demux; |
345 | int ret; |
346 | |
347 | dprintk(2, "budget: %p\n" , budget); |
348 | |
349 | dvbdemux->priv = (void *) budget; |
350 | |
351 | dvbdemux->filternum = 256; |
352 | dvbdemux->feednum = 256; |
353 | dvbdemux->start_feed = budget_start_feed; |
354 | dvbdemux->stop_feed = budget_stop_feed; |
355 | dvbdemux->write_to_decoder = NULL; |
356 | |
357 | dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING | |
358 | DMX_MEMORY_BASED_FILTERING); |
359 | |
360 | dvb_dmx_init(demux: &budget->demux); |
361 | |
362 | budget->dmxdev.filternum = 256; |
363 | budget->dmxdev.demux = &dvbdemux->dmx; |
364 | budget->dmxdev.capabilities = 0; |
365 | |
366 | dvb_dmxdev_init(dmxdev: &budget->dmxdev, adap: &budget->dvb_adapter); |
367 | |
368 | budget->hw_frontend.source = DMX_FRONTEND_0; |
369 | |
370 | ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
371 | |
372 | if (ret < 0) |
373 | goto err_release_dmx; |
374 | |
375 | budget->mem_frontend.source = DMX_MEMORY_FE; |
376 | ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend); |
377 | if (ret < 0) |
378 | goto err_release_dmx; |
379 | |
380 | ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
381 | if (ret < 0) |
382 | goto err_release_dmx; |
383 | |
384 | dvb_net_init(adap: &budget->dvb_adapter, dvbnet: &budget->dvb_net, dmxdemux: &dvbdemux->dmx); |
385 | |
386 | return 0; |
387 | |
388 | err_release_dmx: |
389 | dvb_dmxdev_release(dmxdev: &budget->dmxdev); |
390 | dvb_dmx_release(demux: &budget->demux); |
391 | return ret; |
392 | } |
393 | |
394 | static void budget_unregister(struct budget *budget) |
395 | { |
396 | struct dvb_demux *dvbdemux = &budget->demux; |
397 | |
398 | dprintk(2, "budget: %p\n" , budget); |
399 | |
400 | dvb_net_release(dvbnet: &budget->dvb_net); |
401 | |
402 | dvbdemux->dmx.close(&dvbdemux->dmx); |
403 | dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend); |
404 | dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend); |
405 | |
406 | dvb_dmxdev_release(dmxdev: &budget->dmxdev); |
407 | dvb_dmx_release(demux: &budget->demux); |
408 | } |
409 | |
410 | int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev, |
411 | struct saa7146_pci_extension_data *info, |
412 | struct module *owner, short *adapter_nums) |
413 | { |
414 | int ret = 0; |
415 | struct budget_info *bi = info->ext_priv; |
416 | int max_bufsize; |
417 | int height_mask; |
418 | |
419 | memset(budget, 0, sizeof(struct budget)); |
420 | |
421 | dprintk(2, "dev: %p, budget: %p\n" , dev, budget); |
422 | |
423 | budget->card = bi; |
424 | budget->dev = (struct saa7146_dev *) dev; |
425 | |
426 | switch(budget->card->type) { |
427 | case BUDGET_FS_ACTIVY: |
428 | budget->buffer_width = TS_WIDTH_ACTIVY; |
429 | max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY; |
430 | height_mask = TS_HEIGHT_MASK_ACTIVY; |
431 | break; |
432 | |
433 | case BUDGET_KNC1C: |
434 | case BUDGET_KNC1CP: |
435 | case BUDGET_CIN1200C: |
436 | case BUDGET_KNC1C_MK3: |
437 | case BUDGET_KNC1C_TDA10024: |
438 | case BUDGET_KNC1CP_MK3: |
439 | case BUDGET_CIN1200C_MK3: |
440 | budget->buffer_width = TS_WIDTH_DVBC; |
441 | max_bufsize = TS_MAX_BUFSIZE_K_DVBC; |
442 | height_mask = TS_HEIGHT_MASK_DVBC; |
443 | break; |
444 | |
445 | default: |
446 | budget->buffer_width = TS_WIDTH; |
447 | max_bufsize = TS_MAX_BUFSIZE_K; |
448 | height_mask = TS_HEIGHT_MASK; |
449 | } |
450 | |
451 | if (dma_buffer_size < TS_MIN_BUFSIZE_K) |
452 | dma_buffer_size = TS_MIN_BUFSIZE_K; |
453 | else if (dma_buffer_size > max_bufsize) |
454 | dma_buffer_size = max_bufsize; |
455 | |
456 | budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width; |
457 | if (budget->buffer_height > 0xfff) { |
458 | budget->buffer_height /= 2; |
459 | budget->buffer_height &= height_mask; |
460 | budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width; |
461 | } else { |
462 | budget->buffer_height &= height_mask; |
463 | budget->buffer_size = budget->buffer_height * budget->buffer_width; |
464 | } |
465 | budget->buffer_warning_threshold = budget->buffer_size * 80/100; |
466 | budget->buffer_warnings = 0; |
467 | budget->buffer_warning_time = jiffies; |
468 | |
469 | dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n" , |
470 | budget->dev->name, |
471 | budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single" , |
472 | budget->buffer_width, budget->buffer_height); |
473 | printk("%s: dma buffer size %u\n" , budget->dev->name, budget->buffer_size); |
474 | |
475 | ret = dvb_register_adapter(adap: &budget->dvb_adapter, name: budget->card->name, |
476 | module: owner, device: &budget->dev->pci->dev, adapter_nums); |
477 | if (ret < 0) |
478 | return ret; |
479 | |
480 | /* set dd1 stream a & b */ |
481 | saa7146_write(dev, DD1_STREAM_B, 0x00000000); |
482 | saa7146_write(dev, MC2, (MASK_09 | MASK_25)); |
483 | saa7146_write(dev, MC2, (MASK_10 | MASK_26)); |
484 | saa7146_write(dev, DD1_INIT, 0x02000000); |
485 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); |
486 | |
487 | if (bi->type != BUDGET_FS_ACTIVY) |
488 | budget->video_port = BUDGET_VIDEO_PORTB; |
489 | else |
490 | budget->video_port = BUDGET_VIDEO_PORTA; |
491 | spin_lock_init(&budget->feedlock); |
492 | spin_lock_init(&budget->debilock); |
493 | |
494 | /* the Siemens DVB needs this if you want to have the i2c chips |
495 | get recognized before the main driver is loaded */ |
496 | if (bi->type != BUDGET_FS_ACTIVY) |
497 | saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */ |
498 | |
499 | strscpy(budget->i2c_adap.name, budget->card->name, |
500 | sizeof(budget->i2c_adap.name)); |
501 | |
502 | saa7146_i2c_adapter_prepare(dev, i2c_adapter: &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120); |
503 | strscpy(budget->i2c_adap.name, budget->card->name, |
504 | sizeof(budget->i2c_adap.name)); |
505 | |
506 | if (i2c_add_adapter(adap: &budget->i2c_adap) < 0) { |
507 | ret = -ENOMEM; |
508 | goto err_dvb_unregister; |
509 | } |
510 | |
511 | ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac); |
512 | |
513 | budget->grabbing = saa7146_vmalloc_build_pgtable(pci: dev->pci, length: budget->buffer_size, pt: &budget->pt); |
514 | if (NULL == budget->grabbing) { |
515 | ret = -ENOMEM; |
516 | goto err_del_i2c; |
517 | } |
518 | |
519 | saa7146_write(dev, PCI_BT_V1, 0x001c0000); |
520 | /* upload all */ |
521 | saa7146_write(dev, GPIO_CTRL, 0x000000); |
522 | |
523 | tasklet_setup(t: &budget->vpe_tasklet, callback: vpeirq); |
524 | |
525 | /* frontend power on */ |
526 | if (bi->type != BUDGET_FS_ACTIVY) |
527 | saa7146_setgpio(dev, port: 2, SAA7146_GPIO_OUTHI); |
528 | |
529 | if ((ret = budget_register(budget)) == 0) |
530 | return 0; /* Everything OK */ |
531 | |
532 | /* An error occurred, cleanup resources */ |
533 | saa7146_vfree_destroy_pgtable(pci: dev->pci, mem: budget->grabbing, pt: &budget->pt); |
534 | |
535 | err_del_i2c: |
536 | i2c_del_adapter(adap: &budget->i2c_adap); |
537 | |
538 | err_dvb_unregister: |
539 | dvb_unregister_adapter(adap: &budget->dvb_adapter); |
540 | |
541 | return ret; |
542 | } |
543 | |
544 | void ttpci_budget_init_hooks(struct budget *budget) |
545 | { |
546 | if (budget->dvb_frontend && !budget->read_fe_status) { |
547 | budget->read_fe_status = budget->dvb_frontend->ops.read_status; |
548 | budget->dvb_frontend->ops.read_status = budget_read_fe_status; |
549 | } |
550 | } |
551 | |
552 | int ttpci_budget_deinit(struct budget *budget) |
553 | { |
554 | struct saa7146_dev *dev = budget->dev; |
555 | |
556 | dprintk(2, "budget: %p\n" , budget); |
557 | |
558 | budget_unregister(budget); |
559 | |
560 | tasklet_kill(t: &budget->vpe_tasklet); |
561 | |
562 | saa7146_vfree_destroy_pgtable(pci: dev->pci, mem: budget->grabbing, pt: &budget->pt); |
563 | |
564 | i2c_del_adapter(adap: &budget->i2c_adap); |
565 | |
566 | dvb_unregister_adapter(adap: &budget->dvb_adapter); |
567 | |
568 | return 0; |
569 | } |
570 | |
571 | void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr) |
572 | { |
573 | struct budget *budget = dev->ext_priv; |
574 | |
575 | dprintk(8, "dev: %p, budget: %p\n" , dev, budget); |
576 | |
577 | if (*isr & MASK_10) |
578 | tasklet_schedule(t: &budget->vpe_tasklet); |
579 | } |
580 | |
581 | void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port) |
582 | { |
583 | struct budget *budget = dev->ext_priv; |
584 | |
585 | spin_lock(lock: &budget->feedlock); |
586 | budget->video_port = video_port; |
587 | if (budget->feeding) { |
588 | stop_ts_capture(budget); |
589 | start_ts_capture(budget); |
590 | } |
591 | spin_unlock(lock: &budget->feedlock); |
592 | } |
593 | |
594 | EXPORT_SYMBOL_GPL(ttpci_budget_debiread); |
595 | EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite); |
596 | EXPORT_SYMBOL_GPL(ttpci_budget_init); |
597 | EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks); |
598 | EXPORT_SYMBOL_GPL(ttpci_budget_deinit); |
599 | EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler); |
600 | EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port); |
601 | EXPORT_SYMBOL_GPL(budget_debug); |
602 | |
603 | MODULE_LICENSE("GPL" ); |
604 | |