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/
39 #include "ttpci-eeprom.h"
41 #define TS_WIDTH (2 * TS_SIZE)
42 #define TS_WIDTH_ACTIVY TS_SIZE
43 #define TS_WIDTH_DVBC TS_SIZE
44 #define TS_HEIGHT_MASK 0xf00
45 #define TS_HEIGHT_MASK_ACTIVY 0xc00
46 #define TS_HEIGHT_MASK_DVBC 0xe00
47 #define TS_MIN_BUFSIZE_K 188
48 #define TS_MAX_BUFSIZE_K 1410
49 #define TS_MAX_BUFSIZE_K_ACTIVY 564
50 #define TS_MAX_BUFSIZE_K_DVBC 1316
51 #define BUFFER_WARNING_WAIT (30*HZ)
54 static int dma_buffer_size
= TS_MIN_BUFSIZE_K
;
55 module_param_named(debug
, budget_debug
, int, 0644);
56 module_param_named(bufsize
, dma_buffer_size
, int, 0444);
57 MODULE_PARM_DESC(debug
, "Turn on/off budget debugging (default:off).");
58 MODULE_PARM_DESC(bufsize
, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
60 /****************************************************************************
61 * TT budget / WinTV Nova
62 ****************************************************************************/
64 static int stop_ts_capture(struct budget
*budget
)
66 dprintk(2, "budget: %p\n", budget
);
68 saa7146_write(budget
->dev
, MC1
, MASK_20
); // DMA3 off
69 SAA7146_IER_DISABLE(budget
->dev
, MASK_10
);
73 static int start_ts_capture(struct budget
*budget
)
75 struct saa7146_dev
*dev
= budget
->dev
;
77 dprintk(2, "budget: %p\n", budget
);
79 if (!budget
->feeding
|| !budget
->fe_synced
)
82 saa7146_write(dev
, MC1
, MASK_20
); // DMA3 off
84 memset(budget
->grabbing
, 0x00, budget
->buffer_size
);
86 saa7146_write(dev
, PCI_BT_V1
, 0x001c0000 | (saa7146_read(dev
, PCI_BT_V1
) & ~0x001f0000));
91 * Signal path on the Activy:
93 * tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
95 * Since the tuner feeds 204 bytes packets into the SAA7146,
96 * DMA3 is configured to strip the trailing 16 FEC bytes:
97 * Pitch: 188, NumBytes3: 188, NumLines3: 1024
100 switch(budget
->card
->type
) {
101 case BUDGET_FS_ACTIVY
:
102 saa7146_write(dev
, DD1_INIT
, 0x04000000);
103 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
));
104 saa7146_write(dev
, BRS_CTRL
, 0x00000000);
107 saa7146_write(dev
, DD1_INIT
, 0x00000200);
108 saa7146_write(dev
, MC2
, (MASK_10
| MASK_26
));
109 saa7146_write(dev
, BRS_CTRL
, 0x60000000);
111 case BUDGET_CIN1200C_MK3
:
112 case BUDGET_KNC1C_MK3
:
113 case BUDGET_KNC1CP_MK3
:
114 if (budget
->video_port
== BUDGET_VIDEO_PORTA
) {
115 saa7146_write(dev
, DD1_INIT
, 0x06000200);
116 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
| MASK_10
| MASK_26
));
117 saa7146_write(dev
, BRS_CTRL
, 0x00000000);
119 saa7146_write(dev
, DD1_INIT
, 0x00000600);
120 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
| MASK_10
| MASK_26
));
121 saa7146_write(dev
, BRS_CTRL
, 0x60000000);
125 if (budget
->video_port
== BUDGET_VIDEO_PORTA
) {
126 saa7146_write(dev
, DD1_INIT
, 0x06000200);
127 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
| MASK_10
| MASK_26
));
128 saa7146_write(dev
, BRS_CTRL
, 0x00000000);
130 saa7146_write(dev
, DD1_INIT
, 0x02000600);
131 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
| MASK_10
| MASK_26
));
132 saa7146_write(dev
, BRS_CTRL
, 0x60000000);
136 saa7146_write(dev
, MC2
, (MASK_08
| MASK_24
));
139 saa7146_write(dev
, BASE_ODD3
, 0);
140 if (budget
->buffer_size
> budget
->buffer_height
* budget
->buffer_width
) {
141 // using odd/even buffers
142 saa7146_write(dev
, BASE_EVEN3
, budget
->buffer_height
* budget
->buffer_width
);
144 // using a single buffer
145 saa7146_write(dev
, BASE_EVEN3
, 0);
147 saa7146_write(dev
, PROT_ADDR3
, budget
->buffer_size
);
148 saa7146_write(dev
, BASE_PAGE3
, budget
->pt
.dma
| ME1
| 0x90);
150 saa7146_write(dev
, PITCH3
, budget
->buffer_width
);
151 saa7146_write(dev
, NUM_LINE_BYTE3
,
152 (budget
->buffer_height
<< 16) | budget
->buffer_width
);
154 saa7146_write(dev
, MC2
, (MASK_04
| MASK_20
));
156 SAA7146_ISR_CLEAR(budget
->dev
, MASK_10
); /* VPE */
157 SAA7146_IER_ENABLE(budget
->dev
, MASK_10
); /* VPE */
158 saa7146_write(dev
, MC1
, (MASK_04
| MASK_20
)); /* DMA3 on */
163 static int budget_read_fe_status(struct dvb_frontend
*fe
, fe_status_t
*status
)
165 struct budget
*budget
= (struct budget
*) fe
->dvb
->priv
;
169 if (budget
->read_fe_status
)
170 ret
= budget
->read_fe_status(fe
, status
);
175 synced
= (*status
& FE_HAS_LOCK
);
176 if (synced
!= budget
->fe_synced
) {
177 budget
->fe_synced
= synced
;
178 spin_lock(&budget
->feedlock
);
180 start_ts_capture(budget
);
182 stop_ts_capture(budget
);
183 spin_unlock(&budget
->feedlock
);
189 static void vpeirq(unsigned long data
)
191 struct budget
*budget
= (struct budget
*) data
;
192 u8
*mem
= (u8
*) (budget
->grabbing
);
193 u32 olddma
= budget
->ttbp
;
194 u32 newdma
= saa7146_read(budget
->dev
, PCI_VDP3
);
197 /* Ensure streamed PCI data is synced to CPU */
198 pci_dma_sync_sg_for_cpu(budget
->dev
->pci
, budget
->pt
.slist
, budget
->pt
.nents
, PCI_DMA_FROMDEVICE
);
200 /* nearest lower position divisible by 188 */
201 newdma
-= newdma
% 188;
203 if (newdma
>= budget
->buffer_size
)
206 budget
->ttbp
= newdma
;
208 if (budget
->feeding
== 0 || newdma
== olddma
)
211 if (newdma
> olddma
) { /* no wraparound, dump olddma..newdma */
212 count
= newdma
- olddma
;
213 dvb_dmx_swfilter_packets(&budget
->demux
, mem
+ olddma
, count
/ 188);
214 } else { /* wraparound, dump olddma..buflen and 0..newdma */
215 count
= budget
->buffer_size
- olddma
;
216 dvb_dmx_swfilter_packets(&budget
->demux
, mem
+ olddma
, count
/ 188);
218 dvb_dmx_swfilter_packets(&budget
->demux
, mem
, newdma
/ 188);
221 if (count
> budget
->buffer_warning_threshold
)
222 budget
->buffer_warnings
++;
224 if (budget
->buffer_warnings
&& time_after(jiffies
, budget
->buffer_warning_time
)) {
225 printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
226 budget
->dev
->name
, __FUNCTION__
, budget
->buffer_warnings
, count
);
227 budget
->buffer_warning_time
= jiffies
+ BUFFER_WARNING_WAIT
;
228 budget
->buffer_warnings
= 0;
233 int ttpci_budget_debiread(struct budget
*budget
, u32 config
, int addr
, int count
,
234 int uselocks
, int nobusyloop
)
236 struct saa7146_dev
*saa
= budget
->dev
;
238 unsigned long flags
= 0;
240 if (count
> 4 || count
<= 0)
244 spin_lock_irqsave(&budget
->debilock
, flags
);
246 if ((result
= saa7146_wait_for_debi_done(saa
, nobusyloop
)) < 0) {
248 spin_unlock_irqrestore(&budget
->debilock
, flags
);
252 saa7146_write(saa
, DEBI_COMMAND
, (count
<< 17) | 0x10000 | (addr
& 0xffff));
253 saa7146_write(saa
, DEBI_CONFIG
, config
);
254 saa7146_write(saa
, DEBI_PAGE
, 0);
255 saa7146_write(saa
, MC2
, (2 << 16) | 2);
257 if ((result
= saa7146_wait_for_debi_done(saa
, nobusyloop
)) < 0) {
259 spin_unlock_irqrestore(&budget
->debilock
, flags
);
263 result
= saa7146_read(saa
, DEBI_AD
);
264 result
&= (0xffffffffUL
>> ((4 - count
) * 8));
267 spin_unlock_irqrestore(&budget
->debilock
, flags
);
272 int ttpci_budget_debiwrite(struct budget
*budget
, u32 config
, int addr
,
273 int count
, u32 value
, int uselocks
, int nobusyloop
)
275 struct saa7146_dev
*saa
= budget
->dev
;
276 unsigned long flags
= 0;
279 if (count
> 4 || count
<= 0)
283 spin_lock_irqsave(&budget
->debilock
, flags
);
285 if ((result
= saa7146_wait_for_debi_done(saa
, nobusyloop
)) < 0) {
287 spin_unlock_irqrestore(&budget
->debilock
, flags
);
291 saa7146_write(saa
, DEBI_COMMAND
, (count
<< 17) | 0x00000 | (addr
& 0xffff));
292 saa7146_write(saa
, DEBI_CONFIG
, config
);
293 saa7146_write(saa
, DEBI_PAGE
, 0);
294 saa7146_write(saa
, DEBI_AD
, value
);
295 saa7146_write(saa
, MC2
, (2 << 16) | 2);
297 if ((result
= saa7146_wait_for_debi_done(saa
, nobusyloop
)) < 0) {
299 spin_unlock_irqrestore(&budget
->debilock
, flags
);
304 spin_unlock_irqrestore(&budget
->debilock
, flags
);
309 /****************************************************************************
311 ****************************************************************************/
313 static int budget_start_feed(struct dvb_demux_feed
*feed
)
315 struct dvb_demux
*demux
= feed
->demux
;
316 struct budget
*budget
= (struct budget
*) demux
->priv
;
319 dprintk(2, "budget: %p\n", budget
);
321 if (!demux
->dmx
.frontend
)
324 spin_lock(&budget
->feedlock
);
325 feed
->pusi_seen
= 0; /* have a clean section start */
326 if (budget
->feeding
++ == 0)
327 status
= start_ts_capture(budget
);
328 spin_unlock(&budget
->feedlock
);
332 static int budget_stop_feed(struct dvb_demux_feed
*feed
)
334 struct dvb_demux
*demux
= feed
->demux
;
335 struct budget
*budget
= (struct budget
*) demux
->priv
;
338 dprintk(2, "budget: %p\n", budget
);
340 spin_lock(&budget
->feedlock
);
341 if (--budget
->feeding
== 0)
342 status
= stop_ts_capture(budget
);
343 spin_unlock(&budget
->feedlock
);
347 static int budget_register(struct budget
*budget
)
349 struct dvb_demux
*dvbdemux
= &budget
->demux
;
352 dprintk(2, "budget: %p\n", budget
);
354 dvbdemux
->priv
= (void *) budget
;
356 dvbdemux
->filternum
= 256;
357 dvbdemux
->feednum
= 256;
358 dvbdemux
->start_feed
= budget_start_feed
;
359 dvbdemux
->stop_feed
= budget_stop_feed
;
360 dvbdemux
->write_to_decoder
= NULL
;
362 dvbdemux
->dmx
.capabilities
= (DMX_TS_FILTERING
| DMX_SECTION_FILTERING
|
363 DMX_MEMORY_BASED_FILTERING
);
365 dvb_dmx_init(&budget
->demux
);
367 budget
->dmxdev
.filternum
= 256;
368 budget
->dmxdev
.demux
= &dvbdemux
->dmx
;
369 budget
->dmxdev
.capabilities
= 0;
371 dvb_dmxdev_init(&budget
->dmxdev
, &budget
->dvb_adapter
);
373 budget
->hw_frontend
.source
= DMX_FRONTEND_0
;
375 ret
= dvbdemux
->dmx
.add_frontend(&dvbdemux
->dmx
, &budget
->hw_frontend
);
380 budget
->mem_frontend
.source
= DMX_MEMORY_FE
;
381 ret
= dvbdemux
->dmx
.add_frontend(&dvbdemux
->dmx
, &budget
->mem_frontend
);
385 ret
= dvbdemux
->dmx
.connect_frontend(&dvbdemux
->dmx
, &budget
->hw_frontend
);
389 dvb_net_init(&budget
->dvb_adapter
, &budget
->dvb_net
, &dvbdemux
->dmx
);
394 static void budget_unregister(struct budget
*budget
)
396 struct dvb_demux
*dvbdemux
= &budget
->demux
;
398 dprintk(2, "budget: %p\n", budget
);
400 dvb_net_release(&budget
->dvb_net
);
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
);
406 dvb_dmxdev_release(&budget
->dmxdev
);
407 dvb_dmx_release(&budget
->demux
);
410 int ttpci_budget_init(struct budget
*budget
, struct saa7146_dev
*dev
,
411 struct saa7146_pci_extension_data
*info
,
412 struct module
*owner
)
415 struct budget_info
*bi
= info
->ext_priv
;
419 memset(budget
, 0, sizeof(struct budget
));
421 dprintk(2, "dev: %p, budget: %p\n", dev
, budget
);
424 budget
->dev
= (struct saa7146_dev
*) dev
;
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
;
435 case BUDGET_CIN1200C
:
436 case BUDGET_KNC1C_MK3
:
437 case BUDGET_KNC1CP_MK3
:
438 case BUDGET_CIN1200C_MK3
:
439 budget
->buffer_width
= TS_WIDTH_DVBC
;
440 max_bufsize
= TS_MAX_BUFSIZE_K_DVBC
;
441 height_mask
= TS_HEIGHT_MASK_DVBC
;
445 budget
->buffer_width
= TS_WIDTH
;
446 max_bufsize
= TS_MAX_BUFSIZE_K
;
447 height_mask
= TS_HEIGHT_MASK
;
450 if (dma_buffer_size
< TS_MIN_BUFSIZE_K
)
451 dma_buffer_size
= TS_MIN_BUFSIZE_K
;
452 else if (dma_buffer_size
> max_bufsize
)
453 dma_buffer_size
= max_bufsize
;
455 budget
->buffer_height
= dma_buffer_size
* 1024 / budget
->buffer_width
;
456 if (budget
->buffer_height
> 0xfff) {
457 budget
->buffer_height
/= 2;
458 budget
->buffer_height
&= height_mask
;
459 budget
->buffer_size
= 2 * budget
->buffer_height
* budget
->buffer_width
;
461 budget
->buffer_height
&= height_mask
;
462 budget
->buffer_size
= budget
->buffer_height
* budget
->buffer_width
;
464 budget
->buffer_warning_threshold
= budget
->buffer_size
* 80/100;
465 budget
->buffer_warnings
= 0;
466 budget
->buffer_warning_time
= jiffies
;
468 dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
470 budget
->buffer_size
> budget
->buffer_width
* budget
->buffer_height
? "odd/even" : "single",
471 budget
->buffer_width
, budget
->buffer_height
);
472 printk("%s: dma buffer size %u\n", budget
->dev
->name
, budget
->buffer_size
);
474 if ((ret
= dvb_register_adapter(&budget
->dvb_adapter
, budget
->card
->name
, owner
, &budget
->dev
->pci
->dev
)) < 0) {
478 /* set dd1 stream a & b */
479 saa7146_write(dev
, DD1_STREAM_B
, 0x00000000);
480 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
));
481 saa7146_write(dev
, MC2
, (MASK_10
| MASK_26
));
482 saa7146_write(dev
, DD1_INIT
, 0x02000000);
483 saa7146_write(dev
, MC2
, (MASK_09
| MASK_25
| MASK_10
| MASK_26
));
485 if (bi
->type
!= BUDGET_FS_ACTIVY
)
486 budget
->video_port
= BUDGET_VIDEO_PORTB
;
488 budget
->video_port
= BUDGET_VIDEO_PORTA
;
489 spin_lock_init(&budget
->feedlock
);
490 spin_lock_init(&budget
->debilock
);
492 /* the Siemens DVB needs this if you want to have the i2c chips
493 get recognized before the main driver is loaded */
494 if (bi
->type
!= BUDGET_FS_ACTIVY
)
495 saa7146_write(dev
, GPIO_CTRL
, 0x500000); /* GPIO 3 = 1 */
497 #ifdef I2C_ADAP_CLASS_TV_DIGITAL
498 budget
->i2c_adap
.class = I2C_ADAP_CLASS_TV_DIGITAL
;
500 budget
->i2c_adap
.class = I2C_CLASS_TV_DIGITAL
;
503 strlcpy(budget
->i2c_adap
.name
, budget
->card
->name
, sizeof(budget
->i2c_adap
.name
));
505 saa7146_i2c_adapter_prepare(dev
, &budget
->i2c_adap
, SAA7146_I2C_BUS_BIT_RATE_120
);
506 strcpy(budget
->i2c_adap
.name
, budget
->card
->name
);
508 if (i2c_add_adapter(&budget
->i2c_adap
) < 0) {
510 goto err_dvb_unregister
;
513 ttpci_eeprom_parse_mac(&budget
->i2c_adap
, budget
->dvb_adapter
.proposed_mac
);
515 budget
->grabbing
= saa7146_vmalloc_build_pgtable(dev
->pci
, budget
->buffer_size
, &budget
->pt
);
516 if (NULL
== budget
->grabbing
) {
521 saa7146_write(dev
, PCI_BT_V1
, 0x001c0000);
523 saa7146_write(dev
, GPIO_CTRL
, 0x000000);
525 tasklet_init(&budget
->vpe_tasklet
, vpeirq
, (unsigned long) budget
);
527 /* frontend power on */
528 if (bi
->type
!= BUDGET_FS_ACTIVY
)
529 saa7146_setgpio(dev
, 2, SAA7146_GPIO_OUTHI
);
531 if ((ret
= budget_register(budget
)) == 0)
532 return 0; /* Everything OK */
534 /* An error occurred, cleanup resources */
535 saa7146_vfree_destroy_pgtable(dev
->pci
, budget
->grabbing
, &budget
->pt
);
538 i2c_del_adapter(&budget
->i2c_adap
);
541 dvb_unregister_adapter(&budget
->dvb_adapter
);
546 void ttpci_budget_init_hooks(struct budget
*budget
)
548 if (budget
->dvb_frontend
&& !budget
->read_fe_status
) {
549 budget
->read_fe_status
= budget
->dvb_frontend
->ops
.read_status
;
550 budget
->dvb_frontend
->ops
.read_status
= budget_read_fe_status
;
554 int ttpci_budget_deinit(struct budget
*budget
)
556 struct saa7146_dev
*dev
= budget
->dev
;
558 dprintk(2, "budget: %p\n", budget
);
560 budget_unregister(budget
);
562 tasklet_kill(&budget
->vpe_tasklet
);
564 saa7146_vfree_destroy_pgtable(dev
->pci
, budget
->grabbing
, &budget
->pt
);
566 i2c_del_adapter(&budget
->i2c_adap
);
568 dvb_unregister_adapter(&budget
->dvb_adapter
);
573 void ttpci_budget_irq10_handler(struct saa7146_dev
*dev
, u32
* isr
)
575 struct budget
*budget
= (struct budget
*) dev
->ext_priv
;
577 dprintk(8, "dev: %p, budget: %p\n", dev
, budget
);
580 tasklet_schedule(&budget
->vpe_tasklet
);
583 void ttpci_budget_set_video_port(struct saa7146_dev
*dev
, int video_port
)
585 struct budget
*budget
= (struct budget
*) dev
->ext_priv
;
587 spin_lock(&budget
->feedlock
);
588 budget
->video_port
= video_port
;
589 if (budget
->feeding
) {
590 stop_ts_capture(budget
);
591 start_ts_capture(budget
);
593 spin_unlock(&budget
->feedlock
);
596 EXPORT_SYMBOL_GPL(ttpci_budget_debiread
);
597 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite
);
598 EXPORT_SYMBOL_GPL(ttpci_budget_init
);
599 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks
);
600 EXPORT_SYMBOL_GPL(ttpci_budget_deinit
);
601 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler
);
602 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port
);
603 EXPORT_SYMBOL_GPL(budget_debug
);
605 MODULE_LICENSE("GPL");