1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * budget-patch.c: driver for Budget Patch,
4 * hardware modification of DVB-S cards enabling full TS
5 *
6 * Written by Emard <emard@softhome.net>
7 *
8 * Original idea by Roberto Deza <rdeza@unav.es>
9 *
10 * Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
11 * and Metzlerbros
12 *
13 * the project's page is at https://linuxtv.org
14 */
15
16 #include "av7110.h"
17 #include "av7110_hw.h"
18 #include "budget.h"
19 #include "stv0299.h"
20 #include "ves1x93.h"
21 #include "tda8083.h"
22
23 #include "bsru6.h"
24
25 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
26
27 #define budget_patch budget
28
29 static struct saa7146_extension budget_extension;
30
31 MAKE_BUDGET_INFO(ttbp, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH);
32 //MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);
33
34 static const struct pci_device_id pci_tbl[] = {
35 MAKE_EXTENSION_PCI(ttbp,0x13c2, 0x0000),
36 // MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
37 {
38 .vendor = 0,
39 }
40 };
41
42 /* those lines are for budget-patch to be tried
43 ** on a true budget card and observe the
44 ** behaviour of VSYNC generated by rps1.
45 ** this code was shamelessly copy/pasted from budget.c
46 */
gpio_Set22K(struct budget * budget,int state)47 static void gpio_Set22K (struct budget *budget, int state)
48 {
49 struct saa7146_dev *dev=budget->dev;
50 dprintk(2, "budget: %p\n", budget);
51 saa7146_setgpio(dev, 3, (state ? SAA7146_GPIO_OUTHI : SAA7146_GPIO_OUTLO));
52 }
53
54 /* Diseqc functions only for TT Budget card */
55 /* taken from the Skyvision DVB driver by
56 Ralph Metzler <rjkm@metzlerbros.de> */
57
DiseqcSendBit(struct budget * budget,int data)58 static void DiseqcSendBit (struct budget *budget, int data)
59 {
60 struct saa7146_dev *dev=budget->dev;
61 dprintk(2, "budget: %p\n", budget);
62
63 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
64 udelay(data ? 500 : 1000);
65 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
66 udelay(data ? 1000 : 500);
67 }
68
DiseqcSendByte(struct budget * budget,int data)69 static void DiseqcSendByte (struct budget *budget, int data)
70 {
71 int i, par=1, d;
72
73 dprintk(2, "budget: %p\n", budget);
74
75 for (i=7; i>=0; i--) {
76 d = (data>>i)&1;
77 par ^= d;
78 DiseqcSendBit(budget, d);
79 }
80
81 DiseqcSendBit(budget, par);
82 }
83
SendDiSEqCMsg(struct budget * budget,int len,u8 * msg,unsigned long burst)84 static int SendDiSEqCMsg (struct budget *budget, int len, u8 *msg, unsigned long burst)
85 {
86 struct saa7146_dev *dev=budget->dev;
87 int i;
88
89 dprintk(2, "budget: %p\n", budget);
90
91 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
92 mdelay(16);
93
94 for (i=0; i<len; i++)
95 DiseqcSendByte(budget, msg[i]);
96
97 mdelay(16);
98
99 if (burst!=-1) {
100 if (burst)
101 DiseqcSendByte(budget, 0xff);
102 else {
103 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
104 mdelay(12);
105 udelay(500);
106 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
107 }
108 msleep(20);
109 }
110
111 return 0;
112 }
113
114 /* shamelessly copy/pasted from budget.c */
budget_set_tone(struct dvb_frontend * fe,enum fe_sec_tone_mode tone)115 static int budget_set_tone(struct dvb_frontend *fe,
116 enum fe_sec_tone_mode tone)
117 {
118 struct budget* budget = (struct budget*) fe->dvb->priv;
119
120 switch (tone) {
121 case SEC_TONE_ON:
122 gpio_Set22K (budget, 1);
123 break;
124
125 case SEC_TONE_OFF:
126 gpio_Set22K (budget, 0);
127 break;
128
129 default:
130 return -EINVAL;
131 }
132
133 return 0;
134 }
135
budget_diseqc_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)136 static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
137 {
138 struct budget* budget = (struct budget*) fe->dvb->priv;
139
140 SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);
141
142 return 0;
143 }
144
budget_diseqc_send_burst(struct dvb_frontend * fe,enum fe_sec_mini_cmd minicmd)145 static int budget_diseqc_send_burst(struct dvb_frontend *fe,
146 enum fe_sec_mini_cmd minicmd)
147 {
148 struct budget* budget = (struct budget*) fe->dvb->priv;
149
150 SendDiSEqCMsg (budget, 0, NULL, minicmd);
151
152 return 0;
153 }
154
budget_av7110_send_fw_cmd(struct budget_patch * budget,u16 * buf,int length)155 static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
156 {
157 int i;
158
159 dprintk(2, "budget: %p\n", budget);
160
161 for (i = 2; i < length; i++)
162 {
163 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
164 msleep(5);
165 }
166 if (length)
167 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
168 else
169 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
170 msleep(5);
171 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
172 msleep(5);
173 return 0;
174 }
175
av7110_set22k(struct budget_patch * budget,int state)176 static void av7110_set22k(struct budget_patch *budget, int state)
177 {
178 u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};
179
180 dprintk(2, "budget: %p\n", budget);
181 budget_av7110_send_fw_cmd(budget, buf, 2);
182 }
183
av7110_send_diseqc_msg(struct budget_patch * budget,int len,u8 * msg,int burst)184 static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
185 {
186 int i;
187 u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
188 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
189
190 dprintk(2, "budget: %p\n", budget);
191
192 if (len>10)
193 len=10;
194
195 buf[1] = len+2;
196 buf[2] = len;
197
198 if (burst != -1)
199 buf[3]=burst ? 0x01 : 0x00;
200 else
201 buf[3]=0xffff;
202
203 for (i=0; i<len; i++)
204 buf[i+4]=msg[i];
205
206 budget_av7110_send_fw_cmd(budget, buf, 18);
207 return 0;
208 }
209
budget_patch_set_tone(struct dvb_frontend * fe,enum fe_sec_tone_mode tone)210 static int budget_patch_set_tone(struct dvb_frontend *fe,
211 enum fe_sec_tone_mode tone)
212 {
213 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
214
215 switch (tone) {
216 case SEC_TONE_ON:
217 av7110_set22k (budget, 1);
218 break;
219
220 case SEC_TONE_OFF:
221 av7110_set22k (budget, 0);
222 break;
223
224 default:
225 return -EINVAL;
226 }
227
228 return 0;
229 }
230
budget_patch_diseqc_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)231 static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
232 {
233 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
234
235 av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);
236
237 return 0;
238 }
239
budget_patch_diseqc_send_burst(struct dvb_frontend * fe,enum fe_sec_mini_cmd minicmd)240 static int budget_patch_diseqc_send_burst(struct dvb_frontend *fe,
241 enum fe_sec_mini_cmd minicmd)
242 {
243 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
244
245 av7110_send_diseqc_msg (budget, 0, NULL, minicmd);
246
247 return 0;
248 }
249
alps_bsrv2_tuner_set_params(struct dvb_frontend * fe)250 static int alps_bsrv2_tuner_set_params(struct dvb_frontend *fe)
251 {
252 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
253 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
254 u8 pwr = 0;
255 u8 buf[4];
256 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
257 u32 div = (p->frequency + 479500) / 125;
258
259 if (p->frequency > 2000000)
260 pwr = 3;
261 else if (p->frequency > 1800000)
262 pwr = 2;
263 else if (p->frequency > 1600000)
264 pwr = 1;
265 else if (p->frequency > 1200000)
266 pwr = 0;
267 else if (p->frequency >= 1100000)
268 pwr = 1;
269 else pwr = 2;
270
271 buf[0] = (div >> 8) & 0x7f;
272 buf[1] = div & 0xff;
273 buf[2] = ((div & 0x18000) >> 10) | 0x95;
274 buf[3] = (pwr << 6) | 0x30;
275
276 // NOTE: since we're using a prescaler of 2, we set the
277 // divisor frequency to 62.5kHz and divide by 125 above
278
279 if (fe->ops.i2c_gate_ctrl)
280 fe->ops.i2c_gate_ctrl(fe, 1);
281 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1)
282 return -EIO;
283 return 0;
284 }
285
286 static struct ves1x93_config alps_bsrv2_config = {
287 .demod_address = 0x08,
288 .xin = 90100000UL,
289 .invert_pwm = 0,
290 };
291
grundig_29504_451_tuner_set_params(struct dvb_frontend * fe)292 static int grundig_29504_451_tuner_set_params(struct dvb_frontend *fe)
293 {
294 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
295 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
296 u32 div;
297 u8 data[4];
298 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
299
300 div = p->frequency / 125;
301 data[0] = (div >> 8) & 0x7f;
302 data[1] = div & 0xff;
303 data[2] = 0x8e;
304 data[3] = 0x00;
305
306 if (fe->ops.i2c_gate_ctrl)
307 fe->ops.i2c_gate_ctrl(fe, 1);
308 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1)
309 return -EIO;
310 return 0;
311 }
312
313 static struct tda8083_config grundig_29504_451_config = {
314 .demod_address = 0x68,
315 };
316
frontend_init(struct budget_patch * budget)317 static void frontend_init(struct budget_patch* budget)
318 {
319 switch(budget->dev->pci->subsystem_device) {
320 case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
321 case 0x1013: // SATELCO Multimedia PCI
322
323 // try the ALPS BSRV2 first of all
324 budget->dvb_frontend = dvb_attach(ves1x93_attach, &alps_bsrv2_config, &budget->i2c_adap);
325 if (budget->dvb_frontend) {
326 budget->dvb_frontend->ops.tuner_ops.set_params = alps_bsrv2_tuner_set_params;
327 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
328 budget->dvb_frontend->ops.diseqc_send_burst = budget_patch_diseqc_send_burst;
329 budget->dvb_frontend->ops.set_tone = budget_patch_set_tone;
330 break;
331 }
332
333 // try the ALPS BSRU6 now
334 budget->dvb_frontend = dvb_attach(stv0299_attach, &alps_bsru6_config, &budget->i2c_adap);
335 if (budget->dvb_frontend) {
336 budget->dvb_frontend->ops.tuner_ops.set_params = alps_bsru6_tuner_set_params;
337 budget->dvb_frontend->tuner_priv = &budget->i2c_adap;
338
339 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
340 budget->dvb_frontend->ops.diseqc_send_burst = budget_diseqc_send_burst;
341 budget->dvb_frontend->ops.set_tone = budget_set_tone;
342 break;
343 }
344
345 // Try the grundig 29504-451
346 budget->dvb_frontend = dvb_attach(tda8083_attach, &grundig_29504_451_config, &budget->i2c_adap);
347 if (budget->dvb_frontend) {
348 budget->dvb_frontend->ops.tuner_ops.set_params = grundig_29504_451_tuner_set_params;
349 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
350 budget->dvb_frontend->ops.diseqc_send_burst = budget_diseqc_send_burst;
351 budget->dvb_frontend->ops.set_tone = budget_set_tone;
352 break;
353 }
354 break;
355 }
356
357 if (budget->dvb_frontend == NULL) {
358 printk("dvb-ttpci: A frontend driver was not found for device [%04x:%04x] subsystem [%04x:%04x]\n",
359 budget->dev->pci->vendor,
360 budget->dev->pci->device,
361 budget->dev->pci->subsystem_vendor,
362 budget->dev->pci->subsystem_device);
363 } else {
364 if (dvb_register_frontend(&budget->dvb_adapter, budget->dvb_frontend)) {
365 printk("budget-av: Frontend registration failed!\n");
366 dvb_frontend_detach(budget->dvb_frontend);
367 budget->dvb_frontend = NULL;
368 }
369 }
370 }
371
372 /* written by Emard */
budget_patch_attach(struct saa7146_dev * dev,struct saa7146_pci_extension_data * info)373 static int budget_patch_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
374 {
375 struct budget_patch *budget;
376 int err;
377 int count = 0;
378 int detected = 0;
379
380 #define PATCH_RESET 0
381 #define RPS_IRQ 0
382 #define HPS_SETUP 0
383 #if PATCH_RESET
384 saa7146_write(dev, MC1, MASK_31);
385 msleep(40);
386 #endif
387 #if HPS_SETUP
388 // initialize registers. Better to have it like this
389 // than leaving something unconfigured
390 saa7146_write(dev, DD1_STREAM_B, 0);
391 // port B VSYNC at rising edge
392 saa7146_write(dev, DD1_INIT, 0x00000200); // have this in budget-core too!
393 saa7146_write(dev, BRS_CTRL, 0x00000000); // VBI
394
395 // debi config
396 // saa7146_write(dev, DEBI_CONFIG, MASK_30|MASK_28|MASK_18);
397
398 // zero all HPS registers
399 saa7146_write(dev, HPS_H_PRESCALE, 0); // r68
400 saa7146_write(dev, HPS_H_SCALE, 0); // r6c
401 saa7146_write(dev, BCS_CTRL, 0); // r70
402 saa7146_write(dev, HPS_V_SCALE, 0); // r60
403 saa7146_write(dev, HPS_V_GAIN, 0); // r64
404 saa7146_write(dev, CHROMA_KEY_RANGE, 0); // r74
405 saa7146_write(dev, CLIP_FORMAT_CTRL, 0); // r78
406 // Set HPS prescaler for port B input
407 saa7146_write(dev, HPS_CTRL, (1<<30) | (0<<29) | (1<<28) | (0<<12) );
408 saa7146_write(dev, MC2,
409 0 * (MASK_08 | MASK_24) | // BRS control
410 0 * (MASK_09 | MASK_25) | // a
411 0 * (MASK_10 | MASK_26) | // b
412 1 * (MASK_06 | MASK_22) | // HPS_CTRL1
413 1 * (MASK_05 | MASK_21) | // HPS_CTRL2
414 0 * (MASK_01 | MASK_15) // DEBI
415 );
416 #endif
417 // Disable RPS1 and RPS0
418 saa7146_write(dev, MC1, ( MASK_29 | MASK_28));
419 // RPS1 timeout disable
420 saa7146_write(dev, RPS_TOV1, 0);
421
422 // code for autodetection
423 // will wait for VBI_B event (vertical blank at port B)
424 // and will reset GPIO3 after VBI_B is detected.
425 // (GPIO3 should be raised high by CPU to
426 // test if GPIO3 will generate vertical blank signal
427 // in budget patch GPIO3 is connected to VSYNC_B
428 count = 0;
429 #if 0
430 WRITE_RPS1(CMD_UPLOAD |
431 MASK_10 | MASK_09 | MASK_08 | MASK_06 | MASK_05 | MASK_04 | MASK_03 | MASK_02 );
432 #endif
433 WRITE_RPS1(CMD_PAUSE | EVT_VBI_B);
434 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
435 WRITE_RPS1(GPIO3_MSK);
436 WRITE_RPS1(SAA7146_GPIO_OUTLO<<24);
437 #if RPS_IRQ
438 // issue RPS1 interrupt to increment counter
439 WRITE_RPS1(CMD_INTERRUPT);
440 // at least a NOP is neede between two interrupts
441 WRITE_RPS1(CMD_NOP);
442 // interrupt again
443 WRITE_RPS1(CMD_INTERRUPT);
444 #endif
445 WRITE_RPS1(CMD_STOP);
446
447 #if RPS_IRQ
448 // set event counter 1 source as RPS1 interrupt (0x03) (rE4 p53)
449 // use 0x03 to track RPS1 interrupts - increase by 1 every gpio3 is toggled
450 // use 0x15 to track VPE interrupts - increase by 1 every vpeirq() is called
451 saa7146_write(dev, EC1SSR, (0x03<<2) | 3 );
452 // set event counter 1 threshold to maximum allowed value (rEC p55)
453 saa7146_write(dev, ECT1R, 0x3fff );
454 #endif
455 // Fix VSYNC level
456 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
457 // Set RPS1 Address register to point to RPS code (r108 p42)
458 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
459 // Enable RPS1, (rFC p33)
460 saa7146_write(dev, MC1, (MASK_13 | MASK_29 ));
461
462
463 mdelay(50);
464 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
465 mdelay(150);
466
467
468 if( (saa7146_read(dev, GPIO_CTRL) & 0x10000000) == 0)
469 detected = 1;
470
471 #if RPS_IRQ
472 printk("Event Counter 1 0x%04x\n", saa7146_read(dev, EC1R) & 0x3fff );
473 #endif
474 // Disable RPS1
475 saa7146_write(dev, MC1, ( MASK_29 ));
476
477 if(detected == 0)
478 printk("budget-patch not detected or saa7146 in non-default state.\n"
479 "try enabling resetting of 7146 with MASK_31 in MC1 register\n");
480
481 else
482 printk("BUDGET-PATCH DETECTED.\n");
483
484
485 /* OLD (Original design by Roberto Deza):
486 ** This code will setup the SAA7146_RPS1 to generate a square
487 ** wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of
488 ** TS_WIDTH packets) has been acquired on SAA7146_D1B video port;
489 ** then, this GPIO3 output which is connected to the D1B_VSYNC
490 ** input, will trigger the acquisition of the alternate field
491 ** and so on.
492 ** Currently, the TT_budget / WinTV_Nova cards have two ICs
493 ** (74HCT4040, LVC74) for the generation of this VSYNC signal,
494 ** which seems that can be done perfectly without this :-)).
495 */
496
497 /* New design (By Emard)
498 ** this rps1 code will copy internal HS event to GPIO3 pin.
499 ** GPIO3 is in budget-patch hardware connected to port B VSYNC
500
501 ** HS is an internal event of 7146, accessible with RPS
502 ** and temporarily raised high every n lines
503 ** (n in defined in the RPS_THRESH1 counter threshold)
504 ** I think HS is raised high on the beginning of the n-th line
505 ** and remains high until this n-th line that triggered
506 ** it is completely received. When the reception of n-th line
507 ** ends, HS is lowered.
508
509 ** To transmit data over DMA, 7146 needs changing state at
510 ** port B VSYNC pin. Any changing of port B VSYNC will
511 ** cause some DMA data transfer, with more or less packets loss.
512 ** It depends on the phase and frequency of VSYNC and
513 ** the way of 7146 is instructed to trigger on port B (defined
514 ** in DD1_INIT register, 3rd nibble from the right valid
515 ** numbers are 0-7, see datasheet)
516 **
517 ** The correct triggering can minimize packet loss,
518 ** dvbtraffic should give this stable bandwidths:
519 ** 22k transponder = 33814 kbit/s
520 ** 27.5k transponder = 38045 kbit/s
521 ** by experiment it is found that the best results
522 ** (stable bandwidths and almost no packet loss)
523 ** are obtained using DD1_INIT triggering number 2
524 ** (Va at rising edge of VS Fa = HS x VS-failing forced toggle)
525 ** and a VSYNC phase that occurs in the middle of DMA transfer
526 ** (about byte 188*512=96256 in the DMA window).
527 **
528 ** Phase of HS is still not clear to me how to control,
529 ** It just happens to be so. It can be seen if one enables
530 ** RPS_IRQ and print Event Counter 1 in vpeirq(). Every
531 ** time RPS_INTERRUPT is called, the Event Counter 1 will
532 ** increment. That's how the 7146 is programmed to do event
533 ** counting in this budget-patch.c
534 ** I *think* HPS setting has something to do with the phase
535 ** of HS but I can't be 100% sure in that.
536
537 ** hardware debug note: a working budget card (including budget patch)
538 ** with vpeirq() interrupt setup in mode "0x90" (every 64K) will
539 ** generate 3 interrupts per 25-Hz DMA frame of 2*188*512 bytes
540 ** and that means 3*25=75 Hz of interrupt frequency, as seen by
541 ** watch cat /proc/interrupts
542 **
543 ** If this frequency is 3x lower (and data received in the DMA
544 ** buffer don't start with 0x47, but in the middle of packets,
545 ** whose lengths appear to be like 188 292 188 104 etc.
546 ** this means VSYNC line is not connected in the hardware.
547 ** (check soldering pcb and pins)
548 ** The same behaviour of missing VSYNC can be duplicated on budget
549 ** cards, by setting DD1_INIT trigger mode 7 in 3rd nibble.
550 */
551
552 // Setup RPS1 "program" (p35)
553 count = 0;
554
555
556 // Wait Source Line Counter Threshold (p36)
557 WRITE_RPS1(CMD_PAUSE | EVT_HS);
558 // Set GPIO3=1 (p42)
559 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
560 WRITE_RPS1(GPIO3_MSK);
561 WRITE_RPS1(SAA7146_GPIO_OUTHI<<24);
562 #if RPS_IRQ
563 // issue RPS1 interrupt
564 WRITE_RPS1(CMD_INTERRUPT);
565 #endif
566 // Wait reset Source Line Counter Threshold (p36)
567 WRITE_RPS1(CMD_PAUSE | RPS_INV | EVT_HS);
568 // Set GPIO3=0 (p42)
569 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
570 WRITE_RPS1(GPIO3_MSK);
571 WRITE_RPS1(SAA7146_GPIO_OUTLO<<24);
572 #if RPS_IRQ
573 // issue RPS1 interrupt
574 WRITE_RPS1(CMD_INTERRUPT);
575 #endif
576 // Jump to begin of RPS program (p37)
577 WRITE_RPS1(CMD_JUMP);
578 WRITE_RPS1(dev->d_rps1.dma_handle);
579
580 // Fix VSYNC level
581 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
582 // Set RPS1 Address register to point to RPS code (r108 p42)
583 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
584
585 if (!(budget = kmalloc (sizeof(struct budget_patch), GFP_KERNEL)))
586 return -ENOMEM;
587
588 dprintk(2, "budget: %p\n", budget);
589
590 err = ttpci_budget_init(budget, dev, info, THIS_MODULE, adapter_nr);
591 if (err) {
592 kfree(budget);
593 return err;
594 }
595
596 // Set Source Line Counter Threshold, using BRS (rCC p43)
597 // It generates HS event every TS_HEIGHT lines
598 // this is related to TS_WIDTH set in register
599 // NUM_LINE_BYTE3 in budget-core.c. If NUM_LINE_BYTE
600 // low 16 bits are set to TS_WIDTH bytes (TS_WIDTH=2*188
601 //,then RPS_THRESH1
602 // should be set to trigger every TS_HEIGHT (512) lines.
603 //
604 saa7146_write(dev, RPS_THRESH1, budget->buffer_height | MASK_12 );
605
606 // saa7146_write(dev, RPS_THRESH0, ((TS_HEIGHT/2)<<16) |MASK_28| (TS_HEIGHT/2) |MASK_12 );
607 // Enable RPS1 (rFC p33)
608 saa7146_write(dev, MC1, (MASK_13 | MASK_29));
609
610
611 dev->ext_priv = budget;
612
613 budget->dvb_adapter.priv = budget;
614 frontend_init(budget);
615
616 ttpci_budget_init_hooks(budget);
617
618 return 0;
619 }
620
budget_patch_detach(struct saa7146_dev * dev)621 static int budget_patch_detach (struct saa7146_dev* dev)
622 {
623 struct budget_patch *budget = (struct budget_patch*) dev->ext_priv;
624 int err;
625
626 if (budget->dvb_frontend) {
627 dvb_unregister_frontend(budget->dvb_frontend);
628 dvb_frontend_detach(budget->dvb_frontend);
629 }
630 err = ttpci_budget_deinit (budget);
631
632 kfree (budget);
633
634 return err;
635 }
636
budget_patch_init(void)637 static int __init budget_patch_init(void)
638 {
639 return saa7146_register_extension(&budget_extension);
640 }
641
budget_patch_exit(void)642 static void __exit budget_patch_exit(void)
643 {
644 saa7146_unregister_extension(&budget_extension);
645 }
646
647 static struct saa7146_extension budget_extension = {
648 .name = "budget_patch dvb",
649 .flags = 0,
650
651 .module = THIS_MODULE,
652 .pci_tbl = pci_tbl,
653 .attach = budget_patch_attach,
654 .detach = budget_patch_detach,
655
656 .irq_mask = MASK_10,
657 .irq_func = ttpci_budget_irq10_handler,
658 };
659
660 module_init(budget_patch_init);
661 module_exit(budget_patch_exit);
662
663 MODULE_LICENSE("GPL");
664 MODULE_AUTHOR("Emard, Roberto Deza, Holger Waechtler, Michael Hunold, others");
665 MODULE_DESCRIPTION("Driver for full TS modified DVB-S SAA7146+AV7110 based so-called Budget Patch cards");
666