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1da177e4 LT |
1 | /* |
2 | * budget-core.c: driver for the SAA7146 based Budget DVB cards | |
3 | * | |
4 | * Compiled from various sources by Michael Hunold <michael@mihu.de> | |
5 | * | |
6 | * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de> | |
7 | * | |
8 | * Copyright (C) 1999-2002 Ralph Metzler | |
9 | * & Marcus Metzler for convergence integrated media GmbH | |
10 | * | |
11 | * 26feb2004 Support for FS Activy Card (Grundig tuner) by | |
12 | * Michael Dreher <michael@5dot1.de>, | |
13 | * Oliver Endriss <o.endriss@gmx.de>, | |
14 | * Andreas 'randy' Weinberger | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or | |
17 | * modify it under the terms of the GNU General Public License | |
18 | * as published by the Free Software Foundation; either version 2 | |
19 | * of the License, or (at your option) any later version. | |
20 | * | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
31 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
32 | * | |
33 | * | |
34 | * the project's page is at http://www.linuxtv.org/dvb/ | |
35 | */ | |
36 | ||
37 | #include <linux/moduleparam.h> | |
38 | ||
39 | #include "budget.h" | |
40 | #include "ttpci-eeprom.h" | |
41 | ||
42 | int budget_debug; | |
43 | module_param_named(debug, budget_debug, int, 0644); | |
44 | MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off)."); | |
45 | ||
46 | /**************************************************************************** | |
47 | * TT budget / WinTV Nova | |
48 | ****************************************************************************/ | |
49 | ||
50 | static int stop_ts_capture(struct budget *budget) | |
51 | { | |
52 | dprintk(2, "budget: %p\n", budget); | |
53 | ||
54 | if (--budget->feeding) | |
55 | return budget->feeding; | |
56 | ||
57 | saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off | |
58 | SAA7146_IER_DISABLE(budget->dev, MASK_10); | |
59 | return 0; | |
60 | } | |
61 | ||
62 | static int start_ts_capture(struct budget *budget) | |
63 | { | |
64 | struct saa7146_dev *dev = budget->dev; | |
65 | ||
66 | dprintk(2, "budget: %p\n", budget); | |
67 | ||
68 | if (budget->feeding) | |
69 | return ++budget->feeding; | |
70 | ||
71 | saa7146_write(dev, MC1, MASK_20); // DMA3 off | |
72 | ||
73 | memset(budget->grabbing, 0x00, TS_HEIGHT * TS_WIDTH); | |
74 | ||
75 | saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000)); | |
76 | ||
77 | budget->tsf = 0xff; | |
78 | budget->ttbp = 0; | |
79 | ||
80 | /* | |
81 | * Signal path on the Activy: | |
82 | * | |
83 | * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory | |
84 | * | |
85 | * Since the tuner feeds 204 bytes packets into the SAA7146, | |
86 | * DMA3 is configured to strip the trailing 16 FEC bytes: | |
87 | * Pitch: 188, NumBytes3: 188, NumLines3: 1024 | |
88 | */ | |
89 | ||
9101e622 | 90 | switch(budget->card->type) { |
1da177e4 LT |
91 | case BUDGET_FS_ACTIVY: |
92 | saa7146_write(dev, DD1_INIT, 0x04000000); | |
93 | saa7146_write(dev, MC2, (MASK_09 | MASK_25)); | |
94 | saa7146_write(dev, BRS_CTRL, 0x00000000); | |
95 | break; | |
96 | case BUDGET_PATCH: | |
97 | saa7146_write(dev, DD1_INIT, 0x00000200); | |
98 | saa7146_write(dev, MC2, (MASK_10 | MASK_26)); | |
99 | saa7146_write(dev, BRS_CTRL, 0x60000000); | |
100 | break; | |
101 | default: | |
102 | if (budget->video_port == BUDGET_VIDEO_PORTA) { | |
103 | saa7146_write(dev, DD1_INIT, 0x06000200); | |
104 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); | |
105 | saa7146_write(dev, BRS_CTRL, 0x00000000); | |
106 | } else { | |
107 | saa7146_write(dev, DD1_INIT, 0x02000600); | |
108 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); | |
109 | saa7146_write(dev, BRS_CTRL, 0x60000000); | |
110 | } | |
111 | } | |
112 | ||
113 | saa7146_write(dev, MC2, (MASK_08 | MASK_24)); | |
114 | mdelay(10); | |
115 | ||
116 | saa7146_write(dev, BASE_ODD3, 0); | |
117 | saa7146_write(dev, BASE_EVEN3, 0); | |
118 | saa7146_write(dev, PROT_ADDR3, TS_WIDTH * TS_HEIGHT); | |
119 | saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90); | |
120 | ||
121 | if (budget->card->type == BUDGET_FS_ACTIVY) { | |
122 | saa7146_write(dev, PITCH3, TS_WIDTH / 2); | |
123 | saa7146_write(dev, NUM_LINE_BYTE3, ((TS_HEIGHT * 2) << 16) | (TS_WIDTH / 2)); | |
124 | } else { | |
125 | saa7146_write(dev, PITCH3, TS_WIDTH); | |
126 | saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT << 16) | TS_WIDTH); | |
127 | } | |
128 | ||
129 | saa7146_write(dev, MC2, (MASK_04 | MASK_20)); | |
130 | ||
131 | SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */ | |
132 | SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */ | |
133 | saa7146_write(dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */ | |
134 | ||
135 | return ++budget->feeding; | |
136 | } | |
137 | ||
138 | static void vpeirq(unsigned long data) | |
139 | { | |
140 | struct budget *budget = (struct budget *) data; | |
141 | u8 *mem = (u8 *) (budget->grabbing); | |
142 | u32 olddma = budget->ttbp; | |
143 | u32 newdma = saa7146_read(budget->dev, PCI_VDP3); | |
144 | ||
145 | /* nearest lower position divisible by 188 */ | |
146 | newdma -= newdma % 188; | |
147 | ||
148 | if (newdma >= TS_BUFLEN) | |
149 | return; | |
150 | ||
151 | budget->ttbp = newdma; | |
152 | ||
153 | if (budget->feeding == 0 || newdma == olddma) | |
154 | return; | |
155 | ||
156 | if (newdma > olddma) { /* no wraparound, dump olddma..newdma */ | |
157 | dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (newdma - olddma) / 188); | |
158 | } else { /* wraparound, dump olddma..buflen and 0..newdma */ | |
159 | dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (TS_BUFLEN - olddma) / 188); | |
160 | dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188); | |
161 | } | |
162 | } | |
163 | ||
164 | ||
165 | int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count, | |
166 | int uselocks, int nobusyloop) | |
167 | { | |
168 | struct saa7146_dev *saa = budget->dev; | |
169 | int result = 0; | |
170 | unsigned long flags = 0; | |
171 | ||
172 | if (count > 4 || count <= 0) | |
173 | return 0; | |
174 | ||
175 | if (uselocks) | |
176 | spin_lock_irqsave(&budget->debilock, flags); | |
177 | ||
178 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { | |
179 | if (uselocks) | |
180 | spin_unlock_irqrestore(&budget->debilock, flags); | |
181 | return result; | |
182 | } | |
183 | ||
184 | saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff)); | |
185 | saa7146_write(saa, DEBI_CONFIG, config); | |
186 | saa7146_write(saa, DEBI_PAGE, 0); | |
187 | saa7146_write(saa, MC2, (2 << 16) | 2); | |
188 | ||
189 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { | |
190 | if (uselocks) | |
191 | spin_unlock_irqrestore(&budget->debilock, flags); | |
192 | return result; | |
193 | } | |
194 | ||
195 | result = saa7146_read(saa, DEBI_AD); | |
196 | result &= (0xffffffffUL >> ((4 - count) * 8)); | |
197 | ||
198 | if (uselocks) | |
199 | spin_unlock_irqrestore(&budget->debilock, flags); | |
200 | ||
201 | return result; | |
202 | } | |
203 | ||
204 | int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr, | |
205 | int count, u32 value, int uselocks, int nobusyloop) | |
206 | { | |
207 | struct saa7146_dev *saa = budget->dev; | |
208 | unsigned long flags = 0; | |
209 | int result; | |
210 | ||
211 | if (count > 4 || count <= 0) | |
212 | return 0; | |
213 | ||
214 | if (uselocks) | |
215 | spin_lock_irqsave(&budget->debilock, flags); | |
216 | ||
217 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { | |
218 | if (uselocks) | |
219 | spin_unlock_irqrestore(&budget->debilock, flags); | |
220 | return result; | |
221 | } | |
222 | ||
223 | saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff)); | |
224 | saa7146_write(saa, DEBI_CONFIG, config); | |
225 | saa7146_write(saa, DEBI_PAGE, 0); | |
226 | saa7146_write(saa, DEBI_AD, value); | |
227 | saa7146_write(saa, MC2, (2 << 16) | 2); | |
228 | ||
229 | if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) { | |
230 | if (uselocks) | |
231 | spin_unlock_irqrestore(&budget->debilock, flags); | |
232 | return result; | |
233 | } | |
234 | ||
235 | if (uselocks) | |
236 | spin_unlock_irqrestore(&budget->debilock, flags); | |
237 | return 0; | |
238 | } | |
239 | ||
240 | ||
241 | /**************************************************************************** | |
242 | * DVB API SECTION | |
243 | ****************************************************************************/ | |
244 | ||
245 | static int budget_start_feed(struct dvb_demux_feed *feed) | |
246 | { | |
247 | struct dvb_demux *demux = feed->demux; | |
248 | struct budget *budget = (struct budget *) demux->priv; | |
249 | int status; | |
250 | ||
251 | dprintk(2, "budget: %p\n", budget); | |
252 | ||
253 | if (!demux->dmx.frontend) | |
254 | return -EINVAL; | |
255 | ||
256 | spin_lock(&budget->feedlock); | |
257 | feed->pusi_seen = 0; /* have a clean section start */ | |
258 | status = start_ts_capture(budget); | |
259 | spin_unlock(&budget->feedlock); | |
260 | return status; | |
261 | } | |
262 | ||
263 | static int budget_stop_feed(struct dvb_demux_feed *feed) | |
264 | { | |
265 | struct dvb_demux *demux = feed->demux; | |
266 | struct budget *budget = (struct budget *) demux->priv; | |
267 | int status; | |
268 | ||
269 | dprintk(2, "budget: %p\n", budget); | |
270 | ||
271 | spin_lock(&budget->feedlock); | |
272 | status = stop_ts_capture(budget); | |
273 | spin_unlock(&budget->feedlock); | |
274 | return status; | |
275 | } | |
276 | ||
277 | static int budget_register(struct budget *budget) | |
278 | { | |
279 | struct dvb_demux *dvbdemux = &budget->demux; | |
280 | int ret; | |
281 | ||
282 | dprintk(2, "budget: %p\n", budget); | |
283 | ||
284 | dvbdemux->priv = (void *) budget; | |
285 | ||
286 | dvbdemux->filternum = 256; | |
287 | dvbdemux->feednum = 256; | |
288 | dvbdemux->start_feed = budget_start_feed; | |
289 | dvbdemux->stop_feed = budget_stop_feed; | |
290 | dvbdemux->write_to_decoder = NULL; | |
291 | ||
292 | dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING | | |
293 | DMX_MEMORY_BASED_FILTERING); | |
294 | ||
295 | dvb_dmx_init(&budget->demux); | |
296 | ||
297 | budget->dmxdev.filternum = 256; | |
298 | budget->dmxdev.demux = &dvbdemux->dmx; | |
299 | budget->dmxdev.capabilities = 0; | |
300 | ||
fdc53a6d | 301 | dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter); |
1da177e4 LT |
302 | |
303 | budget->hw_frontend.source = DMX_FRONTEND_0; | |
304 | ||
305 | ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend); | |
306 | ||
307 | if (ret < 0) | |
308 | return ret; | |
309 | ||
310 | budget->mem_frontend.source = DMX_MEMORY_FE; | |
311 | ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend); | |
312 | if (ret < 0) | |
313 | return ret; | |
314 | ||
315 | ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend); | |
316 | if (ret < 0) | |
317 | return ret; | |
318 | ||
fdc53a6d | 319 | dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx); |
1da177e4 LT |
320 | |
321 | return 0; | |
322 | } | |
323 | ||
324 | static void budget_unregister(struct budget *budget) | |
325 | { | |
326 | struct dvb_demux *dvbdemux = &budget->demux; | |
327 | ||
328 | dprintk(2, "budget: %p\n", budget); | |
329 | ||
330 | dvb_net_release(&budget->dvb_net); | |
331 | ||
332 | dvbdemux->dmx.close(&dvbdemux->dmx); | |
333 | dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend); | |
334 | dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend); | |
335 | ||
336 | dvb_dmxdev_release(&budget->dmxdev); | |
337 | dvb_dmx_release(&budget->demux); | |
338 | } | |
339 | ||
340 | int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev, | |
341 | struct saa7146_pci_extension_data *info, | |
342 | struct module *owner) | |
343 | { | |
344 | int length = TS_WIDTH * TS_HEIGHT; | |
345 | int ret = 0; | |
346 | struct budget_info *bi = info->ext_priv; | |
347 | ||
348 | memset(budget, 0, sizeof(struct budget)); | |
349 | ||
350 | dprintk(2, "dev: %p, budget: %p\n", dev, budget); | |
351 | ||
352 | budget->card = bi; | |
353 | budget->dev = (struct saa7146_dev *) dev; | |
354 | ||
355 | dvb_register_adapter(&budget->dvb_adapter, budget->card->name, owner); | |
356 | ||
357 | /* set dd1 stream a & b */ | |
358 | saa7146_write(dev, DD1_STREAM_B, 0x00000000); | |
359 | saa7146_write(dev, MC2, (MASK_09 | MASK_25)); | |
360 | saa7146_write(dev, MC2, (MASK_10 | MASK_26)); | |
361 | saa7146_write(dev, DD1_INIT, 0x02000000); | |
362 | saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); | |
363 | ||
364 | if (bi->type != BUDGET_FS_ACTIVY) | |
365 | budget->video_port = BUDGET_VIDEO_PORTB; | |
366 | else | |
367 | budget->video_port = BUDGET_VIDEO_PORTA; | |
368 | spin_lock_init(&budget->feedlock); | |
369 | spin_lock_init(&budget->debilock); | |
370 | ||
371 | /* the Siemens DVB needs this if you want to have the i2c chips | |
372 | get recognized before the main driver is loaded */ | |
373 | if (bi->type != BUDGET_FS_ACTIVY) | |
374 | saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */ | |
375 | ||
376 | #ifdef I2C_ADAP_CLASS_TV_DIGITAL | |
377 | budget->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL; | |
378 | #else | |
379 | budget->i2c_adap.class = I2C_CLASS_TV_DIGITAL; | |
380 | #endif | |
381 | ||
382 | strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name)); | |
383 | ||
384 | saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120); | |
385 | strcpy(budget->i2c_adap.name, budget->card->name); | |
386 | ||
387 | if (i2c_add_adapter(&budget->i2c_adap) < 0) { | |
fdc53a6d | 388 | dvb_unregister_adapter(&budget->dvb_adapter); |
1da177e4 LT |
389 | return -ENOMEM; |
390 | } | |
391 | ||
fdc53a6d | 392 | ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac); |
1da177e4 LT |
393 | |
394 | if (NULL == | |
395 | (budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, length, &budget->pt))) { | |
396 | ret = -ENOMEM; | |
397 | goto err; | |
398 | } | |
399 | ||
400 | saa7146_write(dev, PCI_BT_V1, 0x001c0000); | |
401 | /* upload all */ | |
402 | saa7146_write(dev, GPIO_CTRL, 0x000000); | |
403 | ||
404 | tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget); | |
405 | ||
406 | /* frontend power on */ | |
f49cc15b | 407 | if (bi->type != BUDGET_FS_ACTIVY) |
1da177e4 LT |
408 | saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI); |
409 | ||
410 | if (budget_register(budget) == 0) { | |
411 | return 0; | |
412 | } | |
413 | err: | |
414 | i2c_del_adapter(&budget->i2c_adap); | |
415 | ||
416 | vfree(budget->grabbing); | |
417 | ||
fdc53a6d | 418 | dvb_unregister_adapter(&budget->dvb_adapter); |
1da177e4 LT |
419 | |
420 | return ret; | |
421 | } | |
422 | ||
423 | int ttpci_budget_deinit(struct budget *budget) | |
424 | { | |
425 | struct saa7146_dev *dev = budget->dev; | |
426 | ||
427 | dprintk(2, "budget: %p\n", budget); | |
428 | ||
429 | budget_unregister(budget); | |
430 | ||
431 | i2c_del_adapter(&budget->i2c_adap); | |
432 | ||
fdc53a6d | 433 | dvb_unregister_adapter(&budget->dvb_adapter); |
1da177e4 LT |
434 | |
435 | tasklet_kill(&budget->vpe_tasklet); | |
436 | ||
437 | saa7146_pgtable_free(dev->pci, &budget->pt); | |
438 | ||
439 | vfree(budget->grabbing); | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
444 | void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr) | |
445 | { | |
446 | struct budget *budget = (struct budget *) dev->ext_priv; | |
447 | ||
448 | dprintk(8, "dev: %p, budget: %p\n", dev, budget); | |
449 | ||
450 | if (*isr & MASK_10) | |
451 | tasklet_schedule(&budget->vpe_tasklet); | |
452 | } | |
453 | ||
454 | void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port) | |
455 | { | |
456 | struct budget *budget = (struct budget *) dev->ext_priv; | |
457 | ||
458 | spin_lock(&budget->feedlock); | |
459 | budget->video_port = video_port; | |
460 | if (budget->feeding) { | |
461 | int oldfeeding = budget->feeding; | |
462 | budget->feeding = 1; | |
463 | stop_ts_capture(budget); | |
464 | start_ts_capture(budget); | |
465 | budget->feeding = oldfeeding; | |
466 | } | |
467 | spin_unlock(&budget->feedlock); | |
468 | } | |
469 | ||
470 | EXPORT_SYMBOL_GPL(ttpci_budget_debiread); | |
471 | EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite); | |
472 | EXPORT_SYMBOL_GPL(ttpci_budget_init); | |
473 | EXPORT_SYMBOL_GPL(ttpci_budget_deinit); | |
474 | EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler); | |
475 | EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port); | |
476 | EXPORT_SYMBOL_GPL(budget_debug); | |
477 | ||
478 | MODULE_LICENSE("GPL"); |