2 * budget-core.c: driver for the SAA7146 based Budget DVB cards
4 * Compiled from various sources by Michael Hunold <michael@mihu.de>
6 * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
8 * Copyright (C) 1999-2002 Ralph Metzler
9 * & Marcus Metzler for convergence integrated media GmbH
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
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.
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.
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
34 * the project's page is at http://www.linuxtv.org/dvb/
37 #include <linux/moduleparam.h>
40 #include "ttpci-eeprom.h"
44 module_param_named(debug, budget_debug, int, 0644);
45 MODULE_PARM_DESC(budget_debug, "Turn on/off budget debugging (default:off).");
47 /****************************************************************************
48 * TT budget / WinTV Nova
49 ****************************************************************************/
51 static int stop_ts_capture(struct budget *budget)
53 dprintk(2, "budget: %p\n", budget);
55 if (--budget->feeding)
56 return budget->feeding;
58 saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off
59 SAA7146_IER_DISABLE(budget->dev, MASK_10);
64 static int start_ts_capture (struct budget *budget)
66 struct saa7146_dev *dev=budget->dev;
68 dprintk(2, "budget: %p\n", budget);
71 return ++budget->feeding;
73 saa7146_write(dev, MC1, MASK_20); // DMA3 off
75 memset(budget->grabbing, 0x00, TS_HEIGHT*TS_WIDTH);
77 saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
83 * Signal path on the Activy:
85 * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
87 * Since the tuner feeds 204 bytes packets into the SAA7146,
88 * DMA3 is configured to strip the trailing 16 FEC bytes:
89 * Pitch: 188, NumBytes3: 188, NumLines3: 1024
92 switch(budget->card->type) {
93 case BUDGET_FS_ACTIVY:
94 saa7146_write(dev, DD1_INIT, 0x04000000);
95 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
96 saa7146_write(dev, BRS_CTRL, 0x00000000);
99 saa7146_write(dev, DD1_INIT, 0x00000200);
100 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
101 saa7146_write(dev, BRS_CTRL, 0x60000000);
104 if (budget->video_port == BUDGET_VIDEO_PORTA) {
105 saa7146_write(dev, DD1_INIT, 0x06000200);
106 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
107 saa7146_write(dev, BRS_CTRL, 0x00000000);
109 saa7146_write(dev, DD1_INIT, 0x02000600);
110 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
111 saa7146_write(dev, BRS_CTRL, 0x60000000);
115 saa7146_write(dev, MC2, (MASK_08 | MASK_24));
118 saa7146_write(dev, BASE_ODD3, 0);
119 saa7146_write(dev, BASE_EVEN3, 0);
120 saa7146_write(dev, PROT_ADDR3, TS_WIDTH*TS_HEIGHT);
121 saa7146_write(dev, BASE_PAGE3, budget->pt.dma |ME1|0x90);
123 if (budget->card->type == BUDGET_FS_ACTIVY) {
124 saa7146_write(dev, PITCH3, TS_WIDTH/2);
125 saa7146_write(dev, NUM_LINE_BYTE3, ((TS_HEIGHT*2)<<16)|(TS_WIDTH/2));
127 saa7146_write(dev, PITCH3, TS_WIDTH);
128 saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT<<16)|TS_WIDTH);
131 saa7146_write(dev, MC2, (MASK_04 | MASK_20));
133 SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */
134 SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */
135 saa7146_write(dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */
137 return ++budget->feeding;
141 static void vpeirq (unsigned long data)
143 struct budget *budget = (struct budget*) data;
144 u8 *mem = (u8 *)(budget->grabbing);
145 u32 olddma = budget->ttbp;
146 u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
148 /* nearest lower position divisible by 188 */
149 newdma -= newdma % 188;
151 if (newdma >= TS_BUFLEN)
154 budget->ttbp = newdma;
156 if(budget->feeding == 0 || newdma == olddma)
159 if (newdma > olddma) { /* no wraparound, dump olddma..newdma */
160 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (newdma - olddma) / 188);
161 } else { /* wraparound, dump olddma..buflen and 0..newdma */
162 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, (TS_BUFLEN - olddma) / 188);
163 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
168 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
169 int uselocks, int nobusyloop)
171 struct saa7146_dev *saa = budget->dev;
173 unsigned long flags = 0;
175 if (count > 4 || count <= 0)
179 spin_lock_irqsave(&budget->debilock, flags);
181 if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
183 spin_unlock_irqrestore(&budget->debilock, flags);
187 saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
188 saa7146_write(saa, DEBI_CONFIG, config);
189 saa7146_write(saa, DEBI_PAGE, 0);
190 saa7146_write(saa, MC2, (2 << 16) | 2);
192 if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
194 spin_unlock_irqrestore(&budget->debilock, flags);
198 result = saa7146_read(saa, DEBI_AD);
199 result &= (0xffffffffUL >> ((4 - count) * 8));
202 spin_unlock_irqrestore(&budget->debilock, flags);
207 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
208 int count, u32 value, int uselocks, int nobusyloop)
210 struct saa7146_dev *saa = budget->dev;
211 unsigned long flags = 0;
214 if (count > 4 || count <= 0)
218 spin_lock_irqsave(&budget->debilock, flags);
220 if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
222 spin_unlock_irqrestore(&budget->debilock, flags);
226 saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
227 saa7146_write(saa, DEBI_CONFIG, config);
228 saa7146_write(saa, DEBI_PAGE, 0);
229 saa7146_write(saa, DEBI_AD, value);
230 saa7146_write(saa, MC2, (2 << 16) | 2);
232 if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
234 spin_unlock_irqrestore(&budget->debilock, flags);
239 spin_unlock_irqrestore(&budget->debilock, flags);
244 /****************************************************************************
246 ****************************************************************************/
248 static int budget_start_feed(struct dvb_demux_feed *feed)
250 struct dvb_demux *demux = feed->demux;
251 struct budget *budget = (struct budget*) demux->priv;
254 dprintk(2, "budget: %p\n", budget);
256 if (!demux->dmx.frontend)
259 spin_lock(&budget->feedlock);
260 feed->pusi_seen = 0; /* have a clean section start */
261 status = start_ts_capture (budget);
262 spin_unlock(&budget->feedlock);
266 static int budget_stop_feed(struct dvb_demux_feed *feed)
268 struct dvb_demux *demux = feed->demux;
269 struct budget *budget = (struct budget *) demux->priv;
272 dprintk(2, "budget: %p\n", budget);
274 spin_lock(&budget->feedlock);
275 status = stop_ts_capture (budget);
276 spin_unlock(&budget->feedlock);
281 static int budget_register(struct budget *budget)
283 struct dvb_demux *dvbdemux=&budget->demux;
286 dprintk(2, "budget: %p\n", budget);
288 dvbdemux->priv = (void *) budget;
290 dvbdemux->filternum = 256;
291 dvbdemux->feednum = 256;
292 dvbdemux->start_feed = budget_start_feed;
293 dvbdemux->stop_feed = budget_stop_feed;
294 dvbdemux->write_to_decoder = NULL;
296 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
297 DMX_MEMORY_BASED_FILTERING);
299 dvb_dmx_init(&budget->demux);
301 budget->dmxdev.filternum = 256;
302 budget->dmxdev.demux = &dvbdemux->dmx;
303 budget->dmxdev.capabilities = 0;
305 dvb_dmxdev_init(&budget->dmxdev, budget->dvb_adapter);
307 budget->hw_frontend.source = DMX_FRONTEND_0;
309 ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
314 budget->mem_frontend.source = DMX_MEMORY_FE;
315 ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
319 ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
323 dvb_net_init(budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
329 static void budget_unregister(struct budget *budget)
331 struct dvb_demux *dvbdemux=&budget->demux;
333 dprintk(2, "budget: %p\n", budget);
335 dvb_net_release(&budget->dvb_net);
337 dvbdemux->dmx.close(&dvbdemux->dmx);
338 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
339 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
341 dvb_dmxdev_release(&budget->dmxdev);
342 dvb_dmx_release(&budget->demux);
345 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
346 struct saa7146_pci_extension_data *info,
347 struct module *owner)
349 int length = TS_WIDTH*TS_HEIGHT;
351 struct budget_info *bi = info->ext_priv;
353 memset(budget, 0, sizeof(struct budget));
355 dprintk(2, "dev: %p, budget: %p\n", dev, budget);
358 budget->dev = (struct saa7146_dev *) dev;
360 dvb_register_adapter(&budget->dvb_adapter, budget->card->name, owner);
362 /* set dd1 stream a & b */
363 saa7146_write(dev, DD1_STREAM_B, 0x00000000);
364 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
365 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
366 saa7146_write(dev, DD1_INIT, 0x02000000);
367 saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
369 if (bi->type != BUDGET_FS_ACTIVY)
370 budget->video_port = BUDGET_VIDEO_PORTB;
372 budget->video_port = BUDGET_VIDEO_PORTA;
373 spin_lock_init(&budget->feedlock);
374 spin_lock_init(&budget->debilock);
376 /* the Siemens DVB needs this if you want to have the i2c chips
377 get recognized before the main driver is loaded */
378 if (bi->type != BUDGET_FS_ACTIVY)
379 saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */
381 #ifdef I2C_ADAP_CLASS_TV_DIGITAL
382 budget->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL;
384 budget->i2c_adap.class = I2C_CLASS_TV_DIGITAL;
387 strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
389 saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
390 strcpy(budget->i2c_adap.name, budget->card->name);
392 if (i2c_add_adapter(&budget->i2c_adap) < 0) {
393 dvb_unregister_adapter (budget->dvb_adapter);
397 ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter->proposed_mac);
400 (budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, length, &budget->pt))) {
405 saa7146_write(dev, PCI_BT_V1, 0x001c0000);
407 saa7146_write(dev, GPIO_CTRL, 0x000000);
409 tasklet_init (&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
411 /* frontend power on */
412 if (bi->type == BUDGET_FS_ACTIVY)
413 saa7146_setgpio(dev, 1, SAA7146_GPIO_OUTHI);
415 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
417 if (budget_register(budget) == 0) {
421 i2c_del_adapter(&budget->i2c_adap);
423 if (budget->grabbing)
424 vfree(budget->grabbing);
426 dvb_unregister_adapter (budget->dvb_adapter);
432 int ttpci_budget_deinit (struct budget *budget)
434 struct saa7146_dev *dev = budget->dev;
436 dprintk(2, "budget: %p\n", budget);
438 budget_unregister (budget);
440 i2c_del_adapter(&budget->i2c_adap);
442 dvb_unregister_adapter (budget->dvb_adapter);
444 tasklet_kill (&budget->vpe_tasklet);
446 saa7146_pgtable_free (dev->pci, &budget->pt);
448 vfree (budget->grabbing);
453 void ttpci_budget_irq10_handler (struct saa7146_dev* dev, u32 *isr)
455 struct budget *budget = (struct budget*)dev->ext_priv;
457 dprintk(8, "dev: %p, budget: %p\n",dev,budget);
460 tasklet_schedule (&budget->vpe_tasklet);
463 void ttpci_budget_set_video_port(struct saa7146_dev* dev, int video_port)
465 struct budget *budget = (struct budget*)dev->ext_priv;
467 spin_lock(&budget->feedlock);
468 budget->video_port = video_port;
469 if (budget->feeding) {
470 int oldfeeding = budget->feeding;
472 stop_ts_capture(budget);
473 start_ts_capture(budget);
474 budget->feeding = oldfeeding;
476 spin_unlock(&budget->feedlock);
479 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
480 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
481 EXPORT_SYMBOL_GPL(ttpci_budget_init);
482 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
483 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
484 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
485 EXPORT_SYMBOL_GPL(budget_debug);
487 MODULE_LICENSE("GPL");