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"
40 #define budget_patch budget
42 static struct saa7146_extension budget_extension;
44 MAKE_BUDGET_INFO(ttbp, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH);
45 //MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);
47 static struct pci_device_id pci_tbl[] = {
48 MAKE_EXTENSION_PCI(ttbp,0x13c2, 0x0000),
49 // MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
55 /* those lines are for budget-patch to be tried
56 ** on a true budget card and observe the
57 ** behaviour of VSYNC generated by rps1.
58 ** this code was shamelessly copy/pasted from budget.c
60 static void gpio_Set22K (struct budget *budget, int state)
62 struct saa7146_dev *dev=budget->dev;
63 dprintk(2, "budget: %p\n", budget);
64 saa7146_setgpio(dev, 3, (state ? SAA7146_GPIO_OUTHI : SAA7146_GPIO_OUTLO));
67 /* Diseqc functions only for TT Budget card */
68 /* taken from the Skyvision DVB driver by
69 Ralph Metzler <rjkm@metzlerbros.de> */
71 static void DiseqcSendBit (struct budget *budget, int data)
73 struct saa7146_dev *dev=budget->dev;
74 dprintk(2, "budget: %p\n", budget);
76 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
77 udelay(data ? 500 : 1000);
78 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
79 udelay(data ? 1000 : 500);
82 static void DiseqcSendByte (struct budget *budget, int data)
86 dprintk(2, "budget: %p\n", budget);
88 for (i=7; i>=0; i--) {
91 DiseqcSendBit(budget, d);
94 DiseqcSendBit(budget, par);
97 static int SendDiSEqCMsg (struct budget *budget, int len, u8 *msg, unsigned long burst)
99 struct saa7146_dev *dev=budget->dev;
102 dprintk(2, "budget: %p\n", budget);
104 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
107 for (i=0; i<len; i++)
108 DiseqcSendByte(budget, msg[i]);
114 DiseqcSendByte(budget, 0xff);
116 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
118 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
126 /* shamelessly copy/pasted from budget.c
128 static int budget_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
130 struct budget* budget = (struct budget*) fe->dvb->priv;
134 gpio_Set22K (budget, 1);
138 gpio_Set22K (budget, 0);
148 static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
150 struct budget* budget = (struct budget*) fe->dvb->priv;
152 SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);
157 static int budget_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
159 struct budget* budget = (struct budget*) fe->dvb->priv;
161 SendDiSEqCMsg (budget, 0, NULL, minicmd);
166 static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
170 dprintk(2, "budget: %p\n", budget);
172 for (i = 2; i < length; i++)
174 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
178 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
180 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
182 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
187 static void av7110_set22k(struct budget_patch *budget, int state)
189 u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};
191 dprintk(2, "budget: %p\n", budget);
192 budget_av7110_send_fw_cmd(budget, buf, 2);
195 static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
198 u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
199 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
201 dprintk(2, "budget: %p\n", budget);
210 buf[3]=burst ? 0x01 : 0x00;
214 for (i=0; i<len; i++)
217 budget_av7110_send_fw_cmd(budget, buf, 18);
221 static int budget_patch_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
223 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
227 av7110_set22k (budget, 1);
231 av7110_set22k (budget, 0);
241 static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
243 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
245 av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);
250 static int budget_patch_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
252 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
254 av7110_send_diseqc_msg (budget, 0, NULL, minicmd);
259 static int alps_bsrv2_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
261 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
264 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
265 u32 div = (params->frequency + 479500) / 125;
267 if (params->frequency > 2000000) pwr = 3;
268 else if (params->frequency > 1800000) pwr = 2;
269 else if (params->frequency > 1600000) pwr = 1;
270 else if (params->frequency > 1200000) pwr = 0;
271 else if (params->frequency >= 1100000) pwr = 1;
274 buf[0] = (div >> 8) & 0x7f;
276 buf[2] = ((div & 0x18000) >> 10) | 0x95;
277 buf[3] = (pwr << 6) | 0x30;
279 // NOTE: since we're using a prescaler of 2, we set the
280 // divisor frequency to 62.5kHz and divide by 125 above
282 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
286 static struct ves1x93_config alps_bsrv2_config = {
287 .demod_address = 0x08,
290 .pll_set = alps_bsrv2_pll_set,
293 static u8 alps_bsru6_inittab[] = {
297 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
298 0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */
299 0x06, 0x40, /* DAC not used, set to high impendance mode */
300 0x07, 0x00, /* DAC LSB */
301 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
302 0x09, 0x00, /* FIFO */
303 0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
304 0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */
305 0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */
306 0x10, 0x3f, // AGC2 0x3d
308 0x12, 0xb5, // Lock detect: -64 Carrier freq detect:on
309 0x15, 0xc9, // lock detector threshold
320 0x28, 0x00, // out imp: normal out type: parallel FEC mode:0
321 0x29, 0x1e, // 1/2 threshold
322 0x2a, 0x14, // 2/3 threshold
323 0x2b, 0x0f, // 3/4 threshold
324 0x2c, 0x09, // 5/6 threshold
325 0x2d, 0x05, // 7/8 threshold
327 0x31, 0x1f, // test all FECs
328 0x32, 0x19, // viterbi and synchro search
329 0x33, 0xfc, // rs control
330 0x34, 0x93, // error control
335 static int alps_bsru6_set_symbol_rate(struct dvb_frontend* fe, u32 srate, u32 ratio)
340 if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; }
341 else if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; }
342 else if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; }
343 else if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; }
344 else if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; }
345 else if (srate < 45000000) { aclk = 0xb4; bclk = 0x51; }
347 stv0299_writereg (fe, 0x13, aclk);
348 stv0299_writereg (fe, 0x14, bclk);
349 stv0299_writereg (fe, 0x1f, (ratio >> 16) & 0xff);
350 stv0299_writereg (fe, 0x20, (ratio >> 8) & 0xff);
351 stv0299_writereg (fe, 0x21, (ratio ) & 0xf0);
356 static int alps_bsru6_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
358 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
361 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
363 if ((params->frequency < 950000) || (params->frequency > 2150000)) return -EINVAL;
365 div = (params->frequency + (125 - 1)) / 125; // round correctly
366 data[0] = (div >> 8) & 0x7f;
367 data[1] = div & 0xff;
368 data[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
371 if (params->frequency > 1530000) data[3] = 0xc0;
373 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
377 static struct stv0299_config alps_bsru6_config = {
379 .demod_address = 0x68,
380 .inittab = alps_bsru6_inittab,
383 .enhanced_tuning = 0,
385 .lock_output = STV0229_LOCKOUTPUT_1,
386 .volt13_op0_op1 = STV0299_VOLT13_OP1,
388 .set_symbol_rate = alps_bsru6_set_symbol_rate,
389 .pll_set = alps_bsru6_pll_set,
392 static int grundig_29504_451_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
394 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
397 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
399 div = params->frequency / 125;
400 data[0] = (div >> 8) & 0x7f;
401 data[1] = div & 0xff;
405 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
409 static struct tda8083_config grundig_29504_451_config = {
410 .demod_address = 0x68,
411 .pll_set = grundig_29504_451_pll_set,
414 static void frontend_init(struct budget_patch* budget)
416 switch(budget->dev->pci->subsystem_device) {
417 case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
418 case 0x1013: // SATELCO Multimedia PCI
420 // try the ALPS BSRV2 first of all
421 budget->dvb_frontend = ves1x93_attach(&alps_bsrv2_config, &budget->i2c_adap);
422 if (budget->dvb_frontend) {
423 budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
424 budget->dvb_frontend->ops->diseqc_send_burst = budget_patch_diseqc_send_burst;
425 budget->dvb_frontend->ops->set_tone = budget_patch_set_tone;
429 // try the ALPS BSRU6 now
430 budget->dvb_frontend = stv0299_attach(&alps_bsru6_config, &budget->i2c_adap);
431 if (budget->dvb_frontend) {
432 budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
433 budget->dvb_frontend->ops->diseqc_send_burst = budget_diseqc_send_burst;
434 budget->dvb_frontend->ops->set_tone = budget_set_tone;
438 // Try the grundig 29504-451
439 budget->dvb_frontend = tda8083_attach(&grundig_29504_451_config, &budget->i2c_adap);
440 if (budget->dvb_frontend) {
441 budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
442 budget->dvb_frontend->ops->diseqc_send_burst = budget_diseqc_send_burst;
443 budget->dvb_frontend->ops->set_tone = budget_set_tone;
449 if (budget->dvb_frontend == NULL) {
450 printk("dvb-ttpci: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
451 budget->dev->pci->vendor,
452 budget->dev->pci->device,
453 budget->dev->pci->subsystem_vendor,
454 budget->dev->pci->subsystem_device);
456 if (dvb_register_frontend(&budget->dvb_adapter, budget->dvb_frontend)) {
457 printk("budget-av: Frontend registration failed!\n");
458 if (budget->dvb_frontend->ops->release)
459 budget->dvb_frontend->ops->release(budget->dvb_frontend);
460 budget->dvb_frontend = NULL;
465 /* written by Emard */
466 static int budget_patch_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
468 struct budget_patch *budget;
473 #define PATCH_RESET 0
477 saa7146_write(dev, MC1, MASK_31);
481 // initialize registers. Better to have it like this
482 // than leaving something unconfigured
483 saa7146_write(dev, DD1_STREAM_B, 0);
484 // port B VSYNC at rising edge
485 saa7146_write(dev, DD1_INIT, 0x00000200); // have this in budget-core too!
486 saa7146_write(dev, BRS_CTRL, 0x00000000); // VBI
489 // saa7146_write(dev, DEBI_CONFIG, MASK_30|MASK_28|MASK_18);
491 // zero all HPS registers
492 saa7146_write(dev, HPS_H_PRESCALE, 0); // r68
493 saa7146_write(dev, HPS_H_SCALE, 0); // r6c
494 saa7146_write(dev, BCS_CTRL, 0); // r70
495 saa7146_write(dev, HPS_V_SCALE, 0); // r60
496 saa7146_write(dev, HPS_V_GAIN, 0); // r64
497 saa7146_write(dev, CHROMA_KEY_RANGE, 0); // r74
498 saa7146_write(dev, CLIP_FORMAT_CTRL, 0); // r78
499 // Set HPS prescaler for port B input
500 saa7146_write(dev, HPS_CTRL, (1<<30) | (0<<29) | (1<<28) | (0<<12) );
501 saa7146_write(dev, MC2,
502 0 * (MASK_08 | MASK_24) | // BRS control
503 0 * (MASK_09 | MASK_25) | // a
504 0 * (MASK_10 | MASK_26) | // b
505 1 * (MASK_06 | MASK_22) | // HPS_CTRL1
506 1 * (MASK_05 | MASK_21) | // HPS_CTRL2
507 0 * (MASK_01 | MASK_15) // DEBI
510 // Disable RPS1 and RPS0
511 saa7146_write(dev, MC1, ( MASK_29 | MASK_28));
512 // RPS1 timeout disable
513 saa7146_write(dev, RPS_TOV1, 0);
515 // code for autodetection
516 // will wait for VBI_B event (vertical blank at port B)
517 // and will reset GPIO3 after VBI_B is detected.
518 // (GPIO3 should be raised high by CPU to
519 // test if GPIO3 will generate vertical blank signal
520 // in budget patch GPIO3 is connected to VSYNC_B
523 WRITE_RPS1(cpu_to_le32(CMD_UPLOAD |
524 MASK_10 | MASK_09 | MASK_08 | MASK_06 | MASK_05 | MASK_04 | MASK_03 | MASK_02 ));
526 WRITE_RPS1(cpu_to_le32(CMD_PAUSE | EVT_VBI_B));
527 WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2)));
528 WRITE_RPS1(cpu_to_le32(GPIO3_MSK));
529 WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTLO<<24));
531 // issue RPS1 interrupt to increment counter
532 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
533 // at least a NOP is neede between two interrupts
534 WRITE_RPS1(cpu_to_le32(CMD_NOP));
536 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
538 WRITE_RPS1(cpu_to_le32(CMD_STOP));
541 // set event counter 1 source as RPS1 interrupt (0x03) (rE4 p53)
542 // use 0x03 to track RPS1 interrupts - increase by 1 every gpio3 is toggled
543 // use 0x15 to track VPE interrupts - increase by 1 every vpeirq() is called
544 saa7146_write(dev, EC1SSR, (0x03<<2) | 3 );
545 // set event counter 1 treshold to maximum allowed value (rEC p55)
546 saa7146_write(dev, ECT1R, 0x3fff );
549 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
550 // Set RPS1 Address register to point to RPS code (r108 p42)
551 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
552 // Enable RPS1, (rFC p33)
553 saa7146_write(dev, MC1, (MASK_13 | MASK_29 ));
557 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
561 if( (saa7146_read(dev, GPIO_CTRL) & 0x10000000) == 0)
565 printk("Event Counter 1 0x%04x\n", saa7146_read(dev, EC1R) & 0x3fff );
568 saa7146_write(dev, MC1, ( MASK_29 ));
571 printk("budget-patch not detected or saa7146 in non-default state.\n"
572 "try enabling ressetting of 7146 with MASK_31 in MC1 register\n");
575 printk("BUDGET-PATCH DETECTED.\n");
578 /* OLD (Original design by Roberto Deza):
579 ** This code will setup the SAA7146_RPS1 to generate a square
580 ** wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of
581 ** TS_WIDTH packets) has been acquired on SAA7146_D1B video port;
582 ** then, this GPIO3 output which is connected to the D1B_VSYNC
583 ** input, will trigger the acquisition of the alternate field
585 ** Currently, the TT_budget / WinTV_Nova cards have two ICs
586 ** (74HCT4040, LVC74) for the generation of this VSYNC signal,
587 ** which seems that can be done perfectly without this :-)).
590 /* New design (By Emard)
591 ** this rps1 code will copy internal HS event to GPIO3 pin.
592 ** GPIO3 is in budget-patch hardware connectd to port B VSYNC
594 ** HS is an internal event of 7146, accessible with RPS
595 ** and temporarily raised high every n lines
596 ** (n in defined in the RPS_THRESH1 counter threshold)
597 ** I think HS is raised high on the beginning of the n-th line
598 ** and remains high until this n-th line that triggered
599 ** it is completely received. When the receiption of n-th line
600 ** ends, HS is lowered.
602 ** To transmit data over DMA, 7146 needs changing state at
603 ** port B VSYNC pin. Any changing of port B VSYNC will
604 ** cause some DMA data transfer, with more or less packets loss.
605 ** It depends on the phase and frequency of VSYNC and
606 ** the way of 7146 is instructed to trigger on port B (defined
607 ** in DD1_INIT register, 3rd nibble from the right valid
608 ** numbers are 0-7, see datasheet)
610 ** The correct triggering can minimize packet loss,
611 ** dvbtraffic should give this stable bandwidths:
612 ** 22k transponder = 33814 kbit/s
613 ** 27.5k transponder = 38045 kbit/s
614 ** by experiment it is found that the best results
615 ** (stable bandwidths and almost no packet loss)
616 ** are obtained using DD1_INIT triggering number 2
617 ** (Va at rising edge of VS Fa = HS x VS-failing forced toggle)
618 ** and a VSYNC phase that occurs in the middle of DMA transfer
619 ** (about byte 188*512=96256 in the DMA window).
621 ** Phase of HS is still not clear to me how to control,
622 ** It just happens to be so. It can be seen if one enables
623 ** RPS_IRQ and print Event Counter 1 in vpeirq(). Every
624 ** time RPS_INTERRUPT is called, the Event Counter 1 will
625 ** increment. That's how the 7146 is programmed to do event
626 ** counting in this budget-patch.c
627 ** I *think* HPS setting has something to do with the phase
628 ** of HS but I cant be 100% sure in that.
630 ** hardware debug note: a working budget card (including budget patch)
631 ** with vpeirq() interrupt setup in mode "0x90" (every 64K) will
632 ** generate 3 interrupts per 25-Hz DMA frame of 2*188*512 bytes
633 ** and that means 3*25=75 Hz of interrupt freqency, as seen by
634 ** watch cat /proc/interrupts
636 ** If this frequency is 3x lower (and data received in the DMA
637 ** buffer don't start with 0x47, but in the middle of packets,
638 ** whose lengths appear to be like 188 292 188 104 etc.
639 ** this means VSYNC line is not connected in the hardware.
640 ** (check soldering pcb and pins)
641 ** The same behaviour of missing VSYNC can be duplicated on budget
642 ** cards, by seting DD1_INIT trigger mode 7 in 3rd nibble.
645 // Setup RPS1 "program" (p35)
649 // Wait Source Line Counter Threshold (p36)
650 WRITE_RPS1(cpu_to_le32(CMD_PAUSE | EVT_HS));
652 WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2)));
653 WRITE_RPS1(cpu_to_le32(GPIO3_MSK));
654 WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTHI<<24));
656 // issue RPS1 interrupt
657 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
659 // Wait reset Source Line Counter Threshold (p36)
660 WRITE_RPS1(cpu_to_le32(CMD_PAUSE | RPS_INV | EVT_HS));
662 WRITE_RPS1(cpu_to_le32(CMD_WR_REG_MASK | (GPIO_CTRL>>2)));
663 WRITE_RPS1(cpu_to_le32(GPIO3_MSK));
664 WRITE_RPS1(cpu_to_le32(SAA7146_GPIO_OUTLO<<24));
666 // issue RPS1 interrupt
667 WRITE_RPS1(cpu_to_le32(CMD_INTERRUPT));
669 // Jump to begin of RPS program (p37)
670 WRITE_RPS1(cpu_to_le32(CMD_JUMP));
671 WRITE_RPS1(cpu_to_le32(dev->d_rps1.dma_handle));
674 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
675 // Set RPS1 Address register to point to RPS code (r108 p42)
676 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
677 // Set Source Line Counter Threshold, using BRS (rCC p43)
678 // It generates HS event every TS_HEIGHT lines
679 // this is related to TS_WIDTH set in register
680 // NUM_LINE_BYTE3 in budget-core.c. If NUM_LINE_BYTE
681 // low 16 bits are set to TS_WIDTH bytes (TS_WIDTH=2*188
683 // should be set to trigger every TS_HEIGHT (512) lines.
685 saa7146_write(dev, RPS_THRESH1, (TS_HEIGHT*1) | MASK_12 );
687 // saa7146_write(dev, RPS_THRESH0, ((TS_HEIGHT/2)<<16) |MASK_28| (TS_HEIGHT/2) |MASK_12 );
688 // Enable RPS1 (rFC p33)
689 saa7146_write(dev, MC1, (MASK_13 | MASK_29));
692 if (!(budget = kmalloc (sizeof(struct budget_patch), GFP_KERNEL)))
695 dprintk(2, "budget: %p\n", budget);
697 if ((err = ttpci_budget_init (budget, dev, info, THIS_MODULE))) {
703 dev->ext_priv = budget;
705 budget->dvb_adapter.priv = budget;
706 frontend_init(budget);
711 static int budget_patch_detach (struct saa7146_dev* dev)
713 struct budget_patch *budget = (struct budget_patch*) dev->ext_priv;
716 if (budget->dvb_frontend) dvb_unregister_frontend(budget->dvb_frontend);
718 err = ttpci_budget_deinit (budget);
725 static int __init budget_patch_init(void)
727 return saa7146_register_extension(&budget_extension);
730 static void __exit budget_patch_exit(void)
732 saa7146_unregister_extension(&budget_extension);
735 static struct saa7146_extension budget_extension = {
736 .name = "budget_patch dvb\0",
739 .module = THIS_MODULE,
741 .attach = budget_patch_attach,
742 .detach = budget_patch_detach,
745 .irq_func = ttpci_budget_irq10_handler,
748 module_init(budget_patch_init);
749 module_exit(budget_patch_exit);
751 MODULE_LICENSE("GPL");
752 MODULE_AUTHOR("Emard, Roberto Deza, Holger Waechtler, Michael Hunold, others");
753 MODULE_DESCRIPTION("Driver for full TS modified DVB-S SAA7146+AV7110 "
754 "based so-called Budget Patch cards");