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);
121 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
129 /* shamelessly copy/pasted from budget.c
131 static int budget_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
133 struct budget* budget = (struct budget*) fe->dvb->priv;
137 gpio_Set22K (budget, 1);
141 gpio_Set22K (budget, 0);
151 static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
153 struct budget* budget = (struct budget*) fe->dvb->priv;
155 SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);
160 static int budget_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
162 struct budget* budget = (struct budget*) fe->dvb->priv;
164 SendDiSEqCMsg (budget, 0, NULL, minicmd);
169 static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
173 dprintk(2, "budget: %p\n", budget);
175 for (i = 2; i < length; i++)
177 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
181 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
183 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
185 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
190 static void av7110_set22k(struct budget_patch *budget, int state)
192 u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};
194 dprintk(2, "budget: %p\n", budget);
195 budget_av7110_send_fw_cmd(budget, buf, 2);
198 static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
201 u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
202 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
204 dprintk(2, "budget: %p\n", budget);
213 buf[3]=burst ? 0x01 : 0x00;
217 for (i=0; i<len; i++)
220 budget_av7110_send_fw_cmd(budget, buf, 18);
224 static int budget_patch_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
226 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
230 av7110_set22k (budget, 1);
234 av7110_set22k (budget, 0);
244 static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
246 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
248 av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);
253 static int budget_patch_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
255 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
257 av7110_send_diseqc_msg (budget, 0, NULL, minicmd);
262 static int alps_bsrv2_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
264 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
267 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
268 u32 div = (params->frequency + 479500) / 125;
270 if (params->frequency > 2000000) pwr = 3;
271 else if (params->frequency > 1800000) pwr = 2;
272 else if (params->frequency > 1600000) pwr = 1;
273 else if (params->frequency > 1200000) pwr = 0;
274 else if (params->frequency >= 1100000) pwr = 1;
277 buf[0] = (div >> 8) & 0x7f;
279 buf[2] = ((div & 0x18000) >> 10) | 0x95;
280 buf[3] = (pwr << 6) | 0x30;
282 // NOTE: since we're using a prescaler of 2, we set the
283 // divisor frequency to 62.5kHz and divide by 125 above
285 if (fe->ops.i2c_gate_ctrl)
286 fe->ops.i2c_gate_ctrl(fe, 1);
287 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1)
292 static struct ves1x93_config alps_bsrv2_config = {
293 .demod_address = 0x08,
298 static int grundig_29504_451_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
300 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
303 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
305 div = params->frequency / 125;
306 data[0] = (div >> 8) & 0x7f;
307 data[1] = div & 0xff;
311 if (fe->ops.i2c_gate_ctrl)
312 fe->ops.i2c_gate_ctrl(fe, 1);
313 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1)
318 static struct tda8083_config grundig_29504_451_config = {
319 .demod_address = 0x68,
322 static void frontend_init(struct budget_patch* budget)
324 switch(budget->dev->pci->subsystem_device) {
325 case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
326 case 0x1013: // SATELCO Multimedia PCI
328 // try the ALPS BSRV2 first of all
329 budget->dvb_frontend = dvb_attach(ves1x93_attach, &alps_bsrv2_config, &budget->i2c_adap);
330 if (budget->dvb_frontend) {
331 budget->dvb_frontend->ops.tuner_ops.set_params = alps_bsrv2_tuner_set_params;
332 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
333 budget->dvb_frontend->ops.diseqc_send_burst = budget_patch_diseqc_send_burst;
334 budget->dvb_frontend->ops.set_tone = budget_patch_set_tone;
338 // try the ALPS BSRU6 now
339 budget->dvb_frontend = dvb_attach(stv0299_attach, &alps_bsru6_config, &budget->i2c_adap);
340 if (budget->dvb_frontend) {
341 budget->dvb_frontend->ops.tuner_ops.set_params = alps_bsru6_tuner_set_params;
342 budget->dvb_frontend->tuner_priv = &budget->i2c_adap;
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;
350 // Try the grundig 29504-451
351 budget->dvb_frontend = dvb_attach(tda8083_attach, &grundig_29504_451_config, &budget->i2c_adap);
352 if (budget->dvb_frontend) {
353 budget->dvb_frontend->ops.tuner_ops.set_params = grundig_29504_451_tuner_set_params;
354 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
355 budget->dvb_frontend->ops.diseqc_send_burst = budget_diseqc_send_burst;
356 budget->dvb_frontend->ops.set_tone = budget_set_tone;
362 if (budget->dvb_frontend == NULL) {
363 printk("dvb-ttpci: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
364 budget->dev->pci->vendor,
365 budget->dev->pci->device,
366 budget->dev->pci->subsystem_vendor,
367 budget->dev->pci->subsystem_device);
369 if (dvb_register_frontend(&budget->dvb_adapter, budget->dvb_frontend)) {
370 printk("budget-av: Frontend registration failed!\n");
371 dvb_frontend_detach(budget->dvb_frontend);
372 budget->dvb_frontend = NULL;
377 /* written by Emard */
378 static int budget_patch_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
380 struct budget_patch *budget;
385 #define PATCH_RESET 0
389 saa7146_write(dev, MC1, MASK_31);
393 // initialize registers. Better to have it like this
394 // than leaving something unconfigured
395 saa7146_write(dev, DD1_STREAM_B, 0);
396 // port B VSYNC at rising edge
397 saa7146_write(dev, DD1_INIT, 0x00000200); // have this in budget-core too!
398 saa7146_write(dev, BRS_CTRL, 0x00000000); // VBI
401 // saa7146_write(dev, DEBI_CONFIG, MASK_30|MASK_28|MASK_18);
403 // zero all HPS registers
404 saa7146_write(dev, HPS_H_PRESCALE, 0); // r68
405 saa7146_write(dev, HPS_H_SCALE, 0); // r6c
406 saa7146_write(dev, BCS_CTRL, 0); // r70
407 saa7146_write(dev, HPS_V_SCALE, 0); // r60
408 saa7146_write(dev, HPS_V_GAIN, 0); // r64
409 saa7146_write(dev, CHROMA_KEY_RANGE, 0); // r74
410 saa7146_write(dev, CLIP_FORMAT_CTRL, 0); // r78
411 // Set HPS prescaler for port B input
412 saa7146_write(dev, HPS_CTRL, (1<<30) | (0<<29) | (1<<28) | (0<<12) );
413 saa7146_write(dev, MC2,
414 0 * (MASK_08 | MASK_24) | // BRS control
415 0 * (MASK_09 | MASK_25) | // a
416 0 * (MASK_10 | MASK_26) | // b
417 1 * (MASK_06 | MASK_22) | // HPS_CTRL1
418 1 * (MASK_05 | MASK_21) | // HPS_CTRL2
419 0 * (MASK_01 | MASK_15) // DEBI
422 // Disable RPS1 and RPS0
423 saa7146_write(dev, MC1, ( MASK_29 | MASK_28));
424 // RPS1 timeout disable
425 saa7146_write(dev, RPS_TOV1, 0);
427 // code for autodetection
428 // will wait for VBI_B event (vertical blank at port B)
429 // and will reset GPIO3 after VBI_B is detected.
430 // (GPIO3 should be raised high by CPU to
431 // test if GPIO3 will generate vertical blank signal
432 // in budget patch GPIO3 is connected to VSYNC_B
435 WRITE_RPS1(CMD_UPLOAD |
436 MASK_10 | MASK_09 | MASK_08 | MASK_06 | MASK_05 | MASK_04 | MASK_03 | MASK_02 );
438 WRITE_RPS1(CMD_PAUSE | EVT_VBI_B);
439 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
440 WRITE_RPS1(GPIO3_MSK);
441 WRITE_RPS1(SAA7146_GPIO_OUTLO<<24);
443 // issue RPS1 interrupt to increment counter
444 WRITE_RPS1(CMD_INTERRUPT);
445 // at least a NOP is neede between two interrupts
448 WRITE_RPS1(CMD_INTERRUPT);
450 WRITE_RPS1(CMD_STOP);
453 // set event counter 1 source as RPS1 interrupt (0x03) (rE4 p53)
454 // use 0x03 to track RPS1 interrupts - increase by 1 every gpio3 is toggled
455 // use 0x15 to track VPE interrupts - increase by 1 every vpeirq() is called
456 saa7146_write(dev, EC1SSR, (0x03<<2) | 3 );
457 // set event counter 1 treshold to maximum allowed value (rEC p55)
458 saa7146_write(dev, ECT1R, 0x3fff );
461 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
462 // Set RPS1 Address register to point to RPS code (r108 p42)
463 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
464 // Enable RPS1, (rFC p33)
465 saa7146_write(dev, MC1, (MASK_13 | MASK_29 ));
469 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
473 if( (saa7146_read(dev, GPIO_CTRL) & 0x10000000) == 0)
477 printk("Event Counter 1 0x%04x\n", saa7146_read(dev, EC1R) & 0x3fff );
480 saa7146_write(dev, MC1, ( MASK_29 ));
483 printk("budget-patch not detected or saa7146 in non-default state.\n"
484 "try enabling ressetting of 7146 with MASK_31 in MC1 register\n");
487 printk("BUDGET-PATCH DETECTED.\n");
490 /* OLD (Original design by Roberto Deza):
491 ** This code will setup the SAA7146_RPS1 to generate a square
492 ** wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of
493 ** TS_WIDTH packets) has been acquired on SAA7146_D1B video port;
494 ** then, this GPIO3 output which is connected to the D1B_VSYNC
495 ** input, will trigger the acquisition of the alternate field
497 ** Currently, the TT_budget / WinTV_Nova cards have two ICs
498 ** (74HCT4040, LVC74) for the generation of this VSYNC signal,
499 ** which seems that can be done perfectly without this :-)).
502 /* New design (By Emard)
503 ** this rps1 code will copy internal HS event to GPIO3 pin.
504 ** GPIO3 is in budget-patch hardware connected to port B VSYNC
506 ** HS is an internal event of 7146, accessible with RPS
507 ** and temporarily raised high every n lines
508 ** (n in defined in the RPS_THRESH1 counter threshold)
509 ** I think HS is raised high on the beginning of the n-th line
510 ** and remains high until this n-th line that triggered
511 ** it is completely received. When the reception of n-th line
512 ** ends, HS is lowered.
514 ** To transmit data over DMA, 7146 needs changing state at
515 ** port B VSYNC pin. Any changing of port B VSYNC will
516 ** cause some DMA data transfer, with more or less packets loss.
517 ** It depends on the phase and frequency of VSYNC and
518 ** the way of 7146 is instructed to trigger on port B (defined
519 ** in DD1_INIT register, 3rd nibble from the right valid
520 ** numbers are 0-7, see datasheet)
522 ** The correct triggering can minimize packet loss,
523 ** dvbtraffic should give this stable bandwidths:
524 ** 22k transponder = 33814 kbit/s
525 ** 27.5k transponder = 38045 kbit/s
526 ** by experiment it is found that the best results
527 ** (stable bandwidths and almost no packet loss)
528 ** are obtained using DD1_INIT triggering number 2
529 ** (Va at rising edge of VS Fa = HS x VS-failing forced toggle)
530 ** and a VSYNC phase that occurs in the middle of DMA transfer
531 ** (about byte 188*512=96256 in the DMA window).
533 ** Phase of HS is still not clear to me how to control,
534 ** It just happens to be so. It can be seen if one enables
535 ** RPS_IRQ and print Event Counter 1 in vpeirq(). Every
536 ** time RPS_INTERRUPT is called, the Event Counter 1 will
537 ** increment. That's how the 7146 is programmed to do event
538 ** counting in this budget-patch.c
539 ** I *think* HPS setting has something to do with the phase
540 ** of HS but I cant be 100% sure in that.
542 ** hardware debug note: a working budget card (including budget patch)
543 ** with vpeirq() interrupt setup in mode "0x90" (every 64K) will
544 ** generate 3 interrupts per 25-Hz DMA frame of 2*188*512 bytes
545 ** and that means 3*25=75 Hz of interrupt frequency, as seen by
546 ** watch cat /proc/interrupts
548 ** If this frequency is 3x lower (and data received in the DMA
549 ** buffer don't start with 0x47, but in the middle of packets,
550 ** whose lengths appear to be like 188 292 188 104 etc.
551 ** this means VSYNC line is not connected in the hardware.
552 ** (check soldering pcb and pins)
553 ** The same behaviour of missing VSYNC can be duplicated on budget
554 ** cards, by setting DD1_INIT trigger mode 7 in 3rd nibble.
557 // Setup RPS1 "program" (p35)
561 // Wait Source Line Counter Threshold (p36)
562 WRITE_RPS1(CMD_PAUSE | EVT_HS);
564 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
565 WRITE_RPS1(GPIO3_MSK);
566 WRITE_RPS1(SAA7146_GPIO_OUTHI<<24);
568 // issue RPS1 interrupt
569 WRITE_RPS1(CMD_INTERRUPT);
571 // Wait reset Source Line Counter Threshold (p36)
572 WRITE_RPS1(CMD_PAUSE | RPS_INV | EVT_HS);
574 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
575 WRITE_RPS1(GPIO3_MSK);
576 WRITE_RPS1(SAA7146_GPIO_OUTLO<<24);
578 // issue RPS1 interrupt
579 WRITE_RPS1(CMD_INTERRUPT);
581 // Jump to begin of RPS program (p37)
582 WRITE_RPS1(CMD_JUMP);
583 WRITE_RPS1(dev->d_rps1.dma_handle);
586 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
587 // Set RPS1 Address register to point to RPS code (r108 p42)
588 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
590 if (!(budget = kmalloc (sizeof(struct budget_patch), GFP_KERNEL)))
593 dprintk(2, "budget: %p\n", budget);
595 if ((err = ttpci_budget_init (budget, dev, info, THIS_MODULE))) {
600 // Set Source Line Counter Threshold, using BRS (rCC p43)
601 // It generates HS event every TS_HEIGHT lines
602 // this is related to TS_WIDTH set in register
603 // NUM_LINE_BYTE3 in budget-core.c. If NUM_LINE_BYTE
604 // low 16 bits are set to TS_WIDTH bytes (TS_WIDTH=2*188
606 // should be set to trigger every TS_HEIGHT (512) lines.
608 saa7146_write(dev, RPS_THRESH1, budget->buffer_height | MASK_12 );
610 // saa7146_write(dev, RPS_THRESH0, ((TS_HEIGHT/2)<<16) |MASK_28| (TS_HEIGHT/2) |MASK_12 );
611 // Enable RPS1 (rFC p33)
612 saa7146_write(dev, MC1, (MASK_13 | MASK_29));
615 dev->ext_priv = budget;
617 budget->dvb_adapter.priv = budget;
618 frontend_init(budget);
620 ttpci_budget_init_hooks(budget);
625 static int budget_patch_detach (struct saa7146_dev* dev)
627 struct budget_patch *budget = (struct budget_patch*) dev->ext_priv;
630 if (budget->dvb_frontend) {
631 dvb_unregister_frontend(budget->dvb_frontend);
632 dvb_frontend_detach(budget->dvb_frontend);
634 err = ttpci_budget_deinit (budget);
641 static int __init budget_patch_init(void)
643 return saa7146_register_extension(&budget_extension);
646 static void __exit budget_patch_exit(void)
648 saa7146_unregister_extension(&budget_extension);
651 static struct saa7146_extension budget_extension = {
652 .name = "budget_patch dvb",
655 .module = THIS_MODULE,
657 .attach = budget_patch_attach,
658 .detach = budget_patch_detach,
661 .irq_func = ttpci_budget_irq10_handler,
664 module_init(budget_patch_init);
665 module_exit(budget_patch_exit);
667 MODULE_LICENSE("GPL");
668 MODULE_AUTHOR("Emard, Roberto Deza, Holger Waechtler, Michael Hunold, others");
669 MODULE_DESCRIPTION("Driver for full TS modified DVB-S SAA7146+AV7110 "
670 "based so-called Budget Patch cards");