2 * budget-patch.c: driver for Budget Patch,
3 * hardware modification of DVB-S cards enabling full TS
5 * Written by Emard <emard@softhome.net>
7 * Original idea by Roberto Deza <rdeza@unav.es>
9 * Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
30 * the project's page is at http://www.linuxtv.org/dvb/
34 #include "av7110_hw.h"
42 #define budget_patch budget
44 static struct saa7146_extension budget_extension
;
46 MAKE_BUDGET_INFO(ttbp
, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH
);
47 //MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);
49 static struct pci_device_id pci_tbl
[] = {
50 MAKE_EXTENSION_PCI(ttbp
,0x13c2, 0x0000),
51 // MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
57 /* those lines are for budget-patch to be tried
58 ** on a true budget card and observe the
59 ** behaviour of VSYNC generated by rps1.
60 ** this code was shamelessly copy/pasted from budget.c
62 static void gpio_Set22K (struct budget
*budget
, int state
)
64 struct saa7146_dev
*dev
=budget
->dev
;
65 dprintk(2, "budget: %p\n", budget
);
66 saa7146_setgpio(dev
, 3, (state
? SAA7146_GPIO_OUTHI
: SAA7146_GPIO_OUTLO
));
69 /* Diseqc functions only for TT Budget card */
70 /* taken from the Skyvision DVB driver by
71 Ralph Metzler <rjkm@metzlerbros.de> */
73 static void DiseqcSendBit (struct budget
*budget
, int data
)
75 struct saa7146_dev
*dev
=budget
->dev
;
76 dprintk(2, "budget: %p\n", budget
);
78 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTHI
);
79 udelay(data
? 500 : 1000);
80 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTLO
);
81 udelay(data
? 1000 : 500);
84 static void DiseqcSendByte (struct budget
*budget
, int data
)
88 dprintk(2, "budget: %p\n", budget
);
90 for (i
=7; i
>=0; i
--) {
93 DiseqcSendBit(budget
, d
);
96 DiseqcSendBit(budget
, par
);
99 static int SendDiSEqCMsg (struct budget
*budget
, int len
, u8
*msg
, unsigned long burst
)
101 struct saa7146_dev
*dev
=budget
->dev
;
104 dprintk(2, "budget: %p\n", budget
);
106 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTLO
);
109 for (i
=0; i
<len
; i
++)
110 DiseqcSendByte(budget
, msg
[i
]);
116 DiseqcSendByte(budget
, 0xff);
118 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTHI
);
120 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTLO
);
128 /* shamelessly copy/pasted from budget.c
130 static int budget_set_tone(struct dvb_frontend
* fe
, fe_sec_tone_mode_t tone
)
132 struct budget
* budget
= (struct budget
*) fe
->dvb
->priv
;
136 gpio_Set22K (budget
, 1);
140 gpio_Set22K (budget
, 0);
150 static int budget_diseqc_send_master_cmd(struct dvb_frontend
* fe
, struct dvb_diseqc_master_cmd
* cmd
)
152 struct budget
* budget
= (struct budget
*) fe
->dvb
->priv
;
154 SendDiSEqCMsg (budget
, cmd
->msg_len
, cmd
->msg
, 0);
159 static int budget_diseqc_send_burst(struct dvb_frontend
* fe
, fe_sec_mini_cmd_t minicmd
)
161 struct budget
* budget
= (struct budget
*) fe
->dvb
->priv
;
163 SendDiSEqCMsg (budget
, 0, NULL
, minicmd
);
168 static int budget_av7110_send_fw_cmd(struct budget_patch
*budget
, u16
* buf
, int length
)
172 dprintk(2, "budget: %p\n", budget
);
174 for (i
= 2; i
< length
; i
++)
176 ttpci_budget_debiwrite(budget
, DEBINOSWAP
, COMMAND
+ 2*i
, 2, (u32
) buf
[i
], 0,0);
180 ttpci_budget_debiwrite(budget
, DEBINOSWAP
, COMMAND
+ 2, 2, (u32
) buf
[1], 0,0);
182 ttpci_budget_debiwrite(budget
, DEBINOSWAP
, COMMAND
+ 2, 2, 0, 0,0);
184 ttpci_budget_debiwrite(budget
, DEBINOSWAP
, COMMAND
, 2, (u32
) buf
[0], 0,0);
189 static void av7110_set22k(struct budget_patch
*budget
, int state
)
191 u16 buf
[2] = {( COMTYPE_AUDIODAC
<< 8) | (state
? ON22K
: OFF22K
), 0};
193 dprintk(2, "budget: %p\n", budget
);
194 budget_av7110_send_fw_cmd(budget
, buf
, 2);
197 static int av7110_send_diseqc_msg(struct budget_patch
*budget
, int len
, u8
*msg
, int burst
)
200 u16 buf
[18] = { ((COMTYPE_AUDIODAC
<< 8) | SendDiSEqC
),
201 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
203 dprintk(2, "budget: %p\n", budget
);
212 buf
[3]=burst
? 0x01 : 0x00;
216 for (i
=0; i
<len
; i
++)
219 budget_av7110_send_fw_cmd(budget
, buf
, 18);
223 static int budget_patch_set_tone(struct dvb_frontend
* fe
, fe_sec_tone_mode_t tone
)
225 struct budget_patch
* budget
= (struct budget_patch
*) fe
->dvb
->priv
;
229 av7110_set22k (budget
, 1);
233 av7110_set22k (budget
, 0);
243 static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend
* fe
, struct dvb_diseqc_master_cmd
* cmd
)
245 struct budget_patch
* budget
= (struct budget_patch
*) fe
->dvb
->priv
;
247 av7110_send_diseqc_msg (budget
, cmd
->msg_len
, cmd
->msg
, 0);
252 static int budget_patch_diseqc_send_burst(struct dvb_frontend
* fe
, fe_sec_mini_cmd_t minicmd
)
254 struct budget_patch
* budget
= (struct budget_patch
*) fe
->dvb
->priv
;
256 av7110_send_diseqc_msg (budget
, 0, NULL
, minicmd
);
261 static int alps_bsrv2_pll_set(struct dvb_frontend
* fe
, struct dvb_frontend_parameters
* params
)
263 struct budget_patch
* budget
= (struct budget_patch
*) fe
->dvb
->priv
;
266 struct i2c_msg msg
= { .addr
= 0x61, .flags
= 0, .buf
= buf
, .len
= sizeof(buf
) };
267 u32 div
= (params
->frequency
+ 479500) / 125;
269 if (params
->frequency
> 2000000) pwr
= 3;
270 else if (params
->frequency
> 1800000) pwr
= 2;
271 else if (params
->frequency
> 1600000) pwr
= 1;
272 else if (params
->frequency
> 1200000) pwr
= 0;
273 else if (params
->frequency
>= 1100000) pwr
= 1;
276 buf
[0] = (div
>> 8) & 0x7f;
278 buf
[2] = ((div
& 0x18000) >> 10) | 0x95;
279 buf
[3] = (pwr
<< 6) | 0x30;
281 // NOTE: since we're using a prescaler of 2, we set the
282 // divisor frequency to 62.5kHz and divide by 125 above
284 if (i2c_transfer (&budget
->i2c_adap
, &msg
, 1) != 1) return -EIO
;
288 static struct ves1x93_config alps_bsrv2_config
= {
289 .demod_address
= 0x08,
292 .pll_set
= alps_bsrv2_pll_set
,
295 static int grundig_29504_451_pll_set(struct dvb_frontend
* fe
, struct dvb_frontend_parameters
* params
)
297 struct budget_patch
* budget
= (struct budget_patch
*) fe
->dvb
->priv
;
300 struct i2c_msg msg
= { .addr
= 0x61, .flags
= 0, .buf
= data
, .len
= sizeof(data
) };
302 div
= params
->frequency
/ 125;
303 data
[0] = (div
>> 8) & 0x7f;
304 data
[1] = div
& 0xff;
308 if (i2c_transfer (&budget
->i2c_adap
, &msg
, 1) != 1) return -EIO
;
312 static struct tda8083_config grundig_29504_451_config
= {
313 .demod_address
= 0x68,
314 .pll_set
= grundig_29504_451_pll_set
,
317 static void frontend_init(struct budget_patch
* budget
)
319 switch(budget
->dev
->pci
->subsystem_device
) {
320 case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
321 case 0x1013: // SATELCO Multimedia PCI
323 // try the ALPS BSRV2 first of all
324 budget
->dvb_frontend
= ves1x93_attach(&alps_bsrv2_config
, &budget
->i2c_adap
);
325 if (budget
->dvb_frontend
) {
326 budget
->dvb_frontend
->ops
->diseqc_send_master_cmd
= budget_patch_diseqc_send_master_cmd
;
327 budget
->dvb_frontend
->ops
->diseqc_send_burst
= budget_patch_diseqc_send_burst
;
328 budget
->dvb_frontend
->ops
->set_tone
= budget_patch_set_tone
;
332 // try the ALPS BSRU6 now
333 budget
->dvb_frontend
= stv0299_attach(&alps_bsru6_config
, &budget
->i2c_adap
);
334 if (budget
->dvb_frontend
) {
335 budget
->dvb_frontend
->ops
->diseqc_send_master_cmd
= budget_diseqc_send_master_cmd
;
336 budget
->dvb_frontend
->ops
->diseqc_send_burst
= budget_diseqc_send_burst
;
337 budget
->dvb_frontend
->ops
->set_tone
= budget_set_tone
;
341 // Try the grundig 29504-451
342 budget
->dvb_frontend
= tda8083_attach(&grundig_29504_451_config
, &budget
->i2c_adap
);
343 if (budget
->dvb_frontend
) {
344 budget
->dvb_frontend
->ops
->diseqc_send_master_cmd
= budget_diseqc_send_master_cmd
;
345 budget
->dvb_frontend
->ops
->diseqc_send_burst
= budget_diseqc_send_burst
;
346 budget
->dvb_frontend
->ops
->set_tone
= budget_set_tone
;
352 if (budget
->dvb_frontend
== NULL
) {
353 printk("dvb-ttpci: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
354 budget
->dev
->pci
->vendor
,
355 budget
->dev
->pci
->device
,
356 budget
->dev
->pci
->subsystem_vendor
,
357 budget
->dev
->pci
->subsystem_device
);
359 if (dvb_register_frontend(&budget
->dvb_adapter
, budget
->dvb_frontend
)) {
360 printk("budget-av: Frontend registration failed!\n");
361 if (budget
->dvb_frontend
->ops
->release
)
362 budget
->dvb_frontend
->ops
->release(budget
->dvb_frontend
);
363 budget
->dvb_frontend
= NULL
;
368 /* written by Emard */
369 static int budget_patch_attach (struct saa7146_dev
* dev
, struct saa7146_pci_extension_data
*info
)
371 struct budget_patch
*budget
;
376 #define PATCH_RESET 0
380 saa7146_write(dev
, MC1
, MASK_31
);
384 // initialize registers. Better to have it like this
385 // than leaving something unconfigured
386 saa7146_write(dev
, DD1_STREAM_B
, 0);
387 // port B VSYNC at rising edge
388 saa7146_write(dev
, DD1_INIT
, 0x00000200); // have this in budget-core too!
389 saa7146_write(dev
, BRS_CTRL
, 0x00000000); // VBI
392 // saa7146_write(dev, DEBI_CONFIG, MASK_30|MASK_28|MASK_18);
394 // zero all HPS registers
395 saa7146_write(dev
, HPS_H_PRESCALE
, 0); // r68
396 saa7146_write(dev
, HPS_H_SCALE
, 0); // r6c
397 saa7146_write(dev
, BCS_CTRL
, 0); // r70
398 saa7146_write(dev
, HPS_V_SCALE
, 0); // r60
399 saa7146_write(dev
, HPS_V_GAIN
, 0); // r64
400 saa7146_write(dev
, CHROMA_KEY_RANGE
, 0); // r74
401 saa7146_write(dev
, CLIP_FORMAT_CTRL
, 0); // r78
402 // Set HPS prescaler for port B input
403 saa7146_write(dev
, HPS_CTRL
, (1<<30) | (0<<29) | (1<<28) | (0<<12) );
404 saa7146_write(dev
, MC2
,
405 0 * (MASK_08
| MASK_24
) | // BRS control
406 0 * (MASK_09
| MASK_25
) | // a
407 0 * (MASK_10
| MASK_26
) | // b
408 1 * (MASK_06
| MASK_22
) | // HPS_CTRL1
409 1 * (MASK_05
| MASK_21
) | // HPS_CTRL2
410 0 * (MASK_01
| MASK_15
) // DEBI
413 // Disable RPS1 and RPS0
414 saa7146_write(dev
, MC1
, ( MASK_29
| MASK_28
));
415 // RPS1 timeout disable
416 saa7146_write(dev
, RPS_TOV1
, 0);
418 // code for autodetection
419 // will wait for VBI_B event (vertical blank at port B)
420 // and will reset GPIO3 after VBI_B is detected.
421 // (GPIO3 should be raised high by CPU to
422 // test if GPIO3 will generate vertical blank signal
423 // in budget patch GPIO3 is connected to VSYNC_B
426 WRITE_RPS1(cpu_to_le32(CMD_UPLOAD
|
427 MASK_10
| MASK_09
| MASK_08
| MASK_06
| MASK_05
| MASK_04
| MASK_03
| MASK_02
));
429 WRITE_RPS1(cpu_to_le32(CMD_PAUSE
| EVT_VBI_B
));
430 WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK
| (GPIO_CTRL
>>2)));
431 WRITE_RPS1(cpu_to_le32(GPIO3_MSK
));
432 WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTLO
<<24));
434 // issue RPS1 interrupt to increment counter
435 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT
));
436 // at least a NOP is neede between two interrupts
437 WRITE_RPS1(cpu_to_le32(CMD_NOP
));
439 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT
));
441 WRITE_RPS1(cpu_to_le32(CMD_STOP
));
444 // set event counter 1 source as RPS1 interrupt (0x03) (rE4 p53)
445 // use 0x03 to track RPS1 interrupts - increase by 1 every gpio3 is toggled
446 // use 0x15 to track VPE interrupts - increase by 1 every vpeirq() is called
447 saa7146_write(dev
, EC1SSR
, (0x03<<2) | 3 );
448 // set event counter 1 treshold to maximum allowed value (rEC p55)
449 saa7146_write(dev
, ECT1R
, 0x3fff );
452 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTLO
);
453 // Set RPS1 Address register to point to RPS code (r108 p42)
454 saa7146_write(dev
, RPS_ADDR1
, dev
->d_rps1
.dma_handle
);
455 // Enable RPS1, (rFC p33)
456 saa7146_write(dev
, MC1
, (MASK_13
| MASK_29
));
460 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTHI
);
464 if( (saa7146_read(dev
, GPIO_CTRL
) & 0x10000000) == 0)
468 printk("Event Counter 1 0x%04x\n", saa7146_read(dev
, EC1R
) & 0x3fff );
471 saa7146_write(dev
, MC1
, ( MASK_29
));
474 printk("budget-patch not detected or saa7146 in non-default state.\n"
475 "try enabling ressetting of 7146 with MASK_31 in MC1 register\n");
478 printk("BUDGET-PATCH DETECTED.\n");
481 /* OLD (Original design by Roberto Deza):
482 ** This code will setup the SAA7146_RPS1 to generate a square
483 ** wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of
484 ** TS_WIDTH packets) has been acquired on SAA7146_D1B video port;
485 ** then, this GPIO3 output which is connected to the D1B_VSYNC
486 ** input, will trigger the acquisition of the alternate field
488 ** Currently, the TT_budget / WinTV_Nova cards have two ICs
489 ** (74HCT4040, LVC74) for the generation of this VSYNC signal,
490 ** which seems that can be done perfectly without this :-)).
493 /* New design (By Emard)
494 ** this rps1 code will copy internal HS event to GPIO3 pin.
495 ** GPIO3 is in budget-patch hardware connectd to port B VSYNC
497 ** HS is an internal event of 7146, accessible with RPS
498 ** and temporarily raised high every n lines
499 ** (n in defined in the RPS_THRESH1 counter threshold)
500 ** I think HS is raised high on the beginning of the n-th line
501 ** and remains high until this n-th line that triggered
502 ** it is completely received. When the receiption of n-th line
503 ** ends, HS is lowered.
505 ** To transmit data over DMA, 7146 needs changing state at
506 ** port B VSYNC pin. Any changing of port B VSYNC will
507 ** cause some DMA data transfer, with more or less packets loss.
508 ** It depends on the phase and frequency of VSYNC and
509 ** the way of 7146 is instructed to trigger on port B (defined
510 ** in DD1_INIT register, 3rd nibble from the right valid
511 ** numbers are 0-7, see datasheet)
513 ** The correct triggering can minimize packet loss,
514 ** dvbtraffic should give this stable bandwidths:
515 ** 22k transponder = 33814 kbit/s
516 ** 27.5k transponder = 38045 kbit/s
517 ** by experiment it is found that the best results
518 ** (stable bandwidths and almost no packet loss)
519 ** are obtained using DD1_INIT triggering number 2
520 ** (Va at rising edge of VS Fa = HS x VS-failing forced toggle)
521 ** and a VSYNC phase that occurs in the middle of DMA transfer
522 ** (about byte 188*512=96256 in the DMA window).
524 ** Phase of HS is still not clear to me how to control,
525 ** It just happens to be so. It can be seen if one enables
526 ** RPS_IRQ and print Event Counter 1 in vpeirq(). Every
527 ** time RPS_INTERRUPT is called, the Event Counter 1 will
528 ** increment. That's how the 7146 is programmed to do event
529 ** counting in this budget-patch.c
530 ** I *think* HPS setting has something to do with the phase
531 ** of HS but I cant be 100% sure in that.
533 ** hardware debug note: a working budget card (including budget patch)
534 ** with vpeirq() interrupt setup in mode "0x90" (every 64K) will
535 ** generate 3 interrupts per 25-Hz DMA frame of 2*188*512 bytes
536 ** and that means 3*25=75 Hz of interrupt freqency, as seen by
537 ** watch cat /proc/interrupts
539 ** If this frequency is 3x lower (and data received in the DMA
540 ** buffer don't start with 0x47, but in the middle of packets,
541 ** whose lengths appear to be like 188 292 188 104 etc.
542 ** this means VSYNC line is not connected in the hardware.
543 ** (check soldering pcb and pins)
544 ** The same behaviour of missing VSYNC can be duplicated on budget
545 ** cards, by seting DD1_INIT trigger mode 7 in 3rd nibble.
548 // Setup RPS1 "program" (p35)
552 // Wait Source Line Counter Threshold (p36)
553 WRITE_RPS1(cpu_to_le32(CMD_PAUSE
| EVT_HS
));
555 WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK
| (GPIO_CTRL
>>2)));
556 WRITE_RPS1(cpu_to_le32(GPIO3_MSK
));
557 WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTHI
<<24));
559 // issue RPS1 interrupt
560 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT
));
562 // Wait reset Source Line Counter Threshold (p36)
563 WRITE_RPS1(cpu_to_le32(CMD_PAUSE
| RPS_INV
| EVT_HS
));
565 WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK
| (GPIO_CTRL
>>2)));
566 WRITE_RPS1(cpu_to_le32(GPIO3_MSK
));
567 WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTLO
<<24));
569 // issue RPS1 interrupt
570 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT
));
572 // Jump to begin of RPS program (p37)
573 WRITE_RPS1(cpu_to_le32(CMD_JUMP
));
574 WRITE_RPS1(cpu_to_le32(dev
->d_rps1
.dma_handle
));
577 saa7146_setgpio(dev
, 3, SAA7146_GPIO_OUTLO
);
578 // Set RPS1 Address register to point to RPS code (r108 p42)
579 saa7146_write(dev
, RPS_ADDR1
, dev
->d_rps1
.dma_handle
);
581 if (!(budget
= kmalloc (sizeof(struct budget_patch
), GFP_KERNEL
)))
584 dprintk(2, "budget: %p\n", budget
);
586 if ((err
= ttpci_budget_init (budget
, dev
, info
, THIS_MODULE
))) {
591 // Set Source Line Counter Threshold, using BRS (rCC p43)
592 // It generates HS event every TS_HEIGHT lines
593 // this is related to TS_WIDTH set in register
594 // NUM_LINE_BYTE3 in budget-core.c. If NUM_LINE_BYTE
595 // low 16 bits are set to TS_WIDTH bytes (TS_WIDTH=2*188
597 // should be set to trigger every TS_HEIGHT (512) lines.
599 saa7146_write(dev
, RPS_THRESH1
, budget
->buffer_height
| MASK_12
);
601 // saa7146_write(dev, RPS_THRESH0, ((TS_HEIGHT/2)<<16) |MASK_28| (TS_HEIGHT/2) |MASK_12 );
602 // Enable RPS1 (rFC p33)
603 saa7146_write(dev
, MC1
, (MASK_13
| MASK_29
));
606 dev
->ext_priv
= budget
;
608 budget
->dvb_adapter
.priv
= budget
;
609 frontend_init(budget
);
614 static int budget_patch_detach (struct saa7146_dev
* dev
)
616 struct budget_patch
*budget
= (struct budget_patch
*) dev
->ext_priv
;
619 if (budget
->dvb_frontend
) dvb_unregister_frontend(budget
->dvb_frontend
);
621 err
= ttpci_budget_deinit (budget
);
628 static int __init
budget_patch_init(void)
630 return saa7146_register_extension(&budget_extension
);
633 static void __exit
budget_patch_exit(void)
635 saa7146_unregister_extension(&budget_extension
);
638 static struct saa7146_extension budget_extension
= {
639 .name
= "budget_patch dvb\0",
642 .module
= THIS_MODULE
,
644 .attach
= budget_patch_attach
,
645 .detach
= budget_patch_detach
,
648 .irq_func
= ttpci_budget_irq10_handler
,
651 module_init(budget_patch_init
);
652 module_exit(budget_patch_exit
);
654 MODULE_LICENSE("GPL");
655 MODULE_AUTHOR("Emard, Roberto Deza, Holger Waechtler, Michael Hunold, others");
656 MODULE_DESCRIPTION("Driver for full TS modified DVB-S SAA7146+AV7110 "
657 "based so-called Budget Patch cards");