1 /*
2 * budget-patch.c: driver for Budget Patch,
3 * hardware modification of DVB-S cards enabling full TS
4 *
5 * Written by Emard <emard@softhome.net>
6 *
7 * Original idea by Roberto Deza <rdeza@unav.es>
8 *
9 * Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
10 * and Metzlerbros
11 *
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.
16 *
17 *
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.
22 *
23 *
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
28 *
29 *
30 * the project's page is at http://www.linuxtv.org/
31 */
32
33 #include "av7110.h"
34 #include "av7110_hw.h"
35 #include "budget.h"
36 #include "stv0299.h"
37 #include "ves1x93.h"
38 #include "tda8083.h"
39
40 #include "bsru6.h"
41
42 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
43
44 #define budget_patch budget
45
46 static struct saa7146_extension budget_extension;
47
48 MAKE_BUDGET_INFO(ttbp, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH);
49 //MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);
50
51 static struct pci_device_id pci_tbl[] = {
52 MAKE_EXTENSION_PCI(ttbp,0x13c2, 0x0000),
53 // MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
54 {
55 .vendor = 0,
56 }
57 };
58
59 /* those lines are for budget-patch to be tried
60 ** on a true budget card and observe the
61 ** behaviour of VSYNC generated by rps1.
62 ** this code was shamelessly copy/pasted from budget.c
63 */
gpio_Set22K(struct budget * budget,int state)64 static void gpio_Set22K (struct budget *budget, int state)
65 {
66 struct saa7146_dev *dev=budget->dev;
67 dprintk(2, "budget: %p\n", budget);
68 saa7146_setgpio(dev, 3, (state ? SAA7146_GPIO_OUTHI : SAA7146_GPIO_OUTLO));
69 }
70
71 /* Diseqc functions only for TT Budget card */
72 /* taken from the Skyvision DVB driver by
73 Ralph Metzler <rjkm@metzlerbros.de> */
74
DiseqcSendBit(struct budget * budget,int data)75 static void DiseqcSendBit (struct budget *budget, int data)
76 {
77 struct saa7146_dev *dev=budget->dev;
78 dprintk(2, "budget: %p\n", budget);
79
80 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
81 udelay(data ? 500 : 1000);
82 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
83 udelay(data ? 1000 : 500);
84 }
85
DiseqcSendByte(struct budget * budget,int data)86 static void DiseqcSendByte (struct budget *budget, int data)
87 {
88 int i, par=1, d;
89
90 dprintk(2, "budget: %p\n", budget);
91
92 for (i=7; i>=0; i--) {
93 d = (data>>i)&1;
94 par ^= d;
95 DiseqcSendBit(budget, d);
96 }
97
98 DiseqcSendBit(budget, par);
99 }
100
SendDiSEqCMsg(struct budget * budget,int len,u8 * msg,unsigned long burst)101 static int SendDiSEqCMsg (struct budget *budget, int len, u8 *msg, unsigned long burst)
102 {
103 struct saa7146_dev *dev=budget->dev;
104 int i;
105
106 dprintk(2, "budget: %p\n", budget);
107
108 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
109 mdelay(16);
110
111 for (i=0; i<len; i++)
112 DiseqcSendByte(budget, msg[i]);
113
114 mdelay(16);
115
116 if (burst!=-1) {
117 if (burst)
118 DiseqcSendByte(budget, 0xff);
119 else {
120 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
121 mdelay(12);
122 udelay(500);
123 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
124 }
125 msleep(20);
126 }
127
128 return 0;
129 }
130
131 /* shamelessly copy/pasted from budget.c */
budget_set_tone(struct dvb_frontend * fe,enum fe_sec_tone_mode tone)132 static int budget_set_tone(struct dvb_frontend *fe,
133 enum fe_sec_tone_mode tone)
134 {
135 struct budget* budget = (struct budget*) fe->dvb->priv;
136
137 switch (tone) {
138 case SEC_TONE_ON:
139 gpio_Set22K (budget, 1);
140 break;
141
142 case SEC_TONE_OFF:
143 gpio_Set22K (budget, 0);
144 break;
145
146 default:
147 return -EINVAL;
148 }
149
150 return 0;
151 }
152
budget_diseqc_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)153 static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
154 {
155 struct budget* budget = (struct budget*) fe->dvb->priv;
156
157 SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);
158
159 return 0;
160 }
161
budget_diseqc_send_burst(struct dvb_frontend * fe,enum fe_sec_mini_cmd minicmd)162 static int budget_diseqc_send_burst(struct dvb_frontend *fe,
163 enum fe_sec_mini_cmd minicmd)
164 {
165 struct budget* budget = (struct budget*) fe->dvb->priv;
166
167 SendDiSEqCMsg (budget, 0, NULL, minicmd);
168
169 return 0;
170 }
171
budget_av7110_send_fw_cmd(struct budget_patch * budget,u16 * buf,int length)172 static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
173 {
174 int i;
175
176 dprintk(2, "budget: %p\n", budget);
177
178 for (i = 2; i < length; i++)
179 {
180 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
181 msleep(5);
182 }
183 if (length)
184 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
185 else
186 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
187 msleep(5);
188 ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
189 msleep(5);
190 return 0;
191 }
192
av7110_set22k(struct budget_patch * budget,int state)193 static void av7110_set22k(struct budget_patch *budget, int state)
194 {
195 u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};
196
197 dprintk(2, "budget: %p\n", budget);
198 budget_av7110_send_fw_cmd(budget, buf, 2);
199 }
200
av7110_send_diseqc_msg(struct budget_patch * budget,int len,u8 * msg,int burst)201 static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
202 {
203 int i;
204 u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
205 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
206
207 dprintk(2, "budget: %p\n", budget);
208
209 if (len>10)
210 len=10;
211
212 buf[1] = len+2;
213 buf[2] = len;
214
215 if (burst != -1)
216 buf[3]=burst ? 0x01 : 0x00;
217 else
218 buf[3]=0xffff;
219
220 for (i=0; i<len; i++)
221 buf[i+4]=msg[i];
222
223 budget_av7110_send_fw_cmd(budget, buf, 18);
224 return 0;
225 }
226
budget_patch_set_tone(struct dvb_frontend * fe,enum fe_sec_tone_mode tone)227 static int budget_patch_set_tone(struct dvb_frontend *fe,
228 enum fe_sec_tone_mode tone)
229 {
230 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
231
232 switch (tone) {
233 case SEC_TONE_ON:
234 av7110_set22k (budget, 1);
235 break;
236
237 case SEC_TONE_OFF:
238 av7110_set22k (budget, 0);
239 break;
240
241 default:
242 return -EINVAL;
243 }
244
245 return 0;
246 }
247
budget_patch_diseqc_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)248 static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
249 {
250 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
251
252 av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);
253
254 return 0;
255 }
256
budget_patch_diseqc_send_burst(struct dvb_frontend * fe,enum fe_sec_mini_cmd minicmd)257 static int budget_patch_diseqc_send_burst(struct dvb_frontend *fe,
258 enum fe_sec_mini_cmd minicmd)
259 {
260 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
261
262 av7110_send_diseqc_msg (budget, 0, NULL, minicmd);
263
264 return 0;
265 }
266
alps_bsrv2_tuner_set_params(struct dvb_frontend * fe)267 static int alps_bsrv2_tuner_set_params(struct dvb_frontend *fe)
268 {
269 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
270 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
271 u8 pwr = 0;
272 u8 buf[4];
273 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
274 u32 div = (p->frequency + 479500) / 125;
275
276 if (p->frequency > 2000000)
277 pwr = 3;
278 else if (p->frequency > 1800000)
279 pwr = 2;
280 else if (p->frequency > 1600000)
281 pwr = 1;
282 else if (p->frequency > 1200000)
283 pwr = 0;
284 else if (p->frequency >= 1100000)
285 pwr = 1;
286 else pwr = 2;
287
288 buf[0] = (div >> 8) & 0x7f;
289 buf[1] = div & 0xff;
290 buf[2] = ((div & 0x18000) >> 10) | 0x95;
291 buf[3] = (pwr << 6) | 0x30;
292
293 // NOTE: since we're using a prescaler of 2, we set the
294 // divisor frequency to 62.5kHz and divide by 125 above
295
296 if (fe->ops.i2c_gate_ctrl)
297 fe->ops.i2c_gate_ctrl(fe, 1);
298 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1)
299 return -EIO;
300 return 0;
301 }
302
303 static struct ves1x93_config alps_bsrv2_config = {
304 .demod_address = 0x08,
305 .xin = 90100000UL,
306 .invert_pwm = 0,
307 };
308
grundig_29504_451_tuner_set_params(struct dvb_frontend * fe)309 static int grundig_29504_451_tuner_set_params(struct dvb_frontend *fe)
310 {
311 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
312 struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
313 u32 div;
314 u8 data[4];
315 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
316
317 div = p->frequency / 125;
318 data[0] = (div >> 8) & 0x7f;
319 data[1] = div & 0xff;
320 data[2] = 0x8e;
321 data[3] = 0x00;
322
323 if (fe->ops.i2c_gate_ctrl)
324 fe->ops.i2c_gate_ctrl(fe, 1);
325 if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1)
326 return -EIO;
327 return 0;
328 }
329
330 static struct tda8083_config grundig_29504_451_config = {
331 .demod_address = 0x68,
332 };
333
frontend_init(struct budget_patch * budget)334 static void frontend_init(struct budget_patch* budget)
335 {
336 switch(budget->dev->pci->subsystem_device) {
337 case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
338 case 0x1013: // SATELCO Multimedia PCI
339
340 // try the ALPS BSRV2 first of all
341 budget->dvb_frontend = dvb_attach(ves1x93_attach, &alps_bsrv2_config, &budget->i2c_adap);
342 if (budget->dvb_frontend) {
343 budget->dvb_frontend->ops.tuner_ops.set_params = alps_bsrv2_tuner_set_params;
344 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
345 budget->dvb_frontend->ops.diseqc_send_burst = budget_patch_diseqc_send_burst;
346 budget->dvb_frontend->ops.set_tone = budget_patch_set_tone;
347 break;
348 }
349
350 // try the ALPS BSRU6 now
351 budget->dvb_frontend = dvb_attach(stv0299_attach, &alps_bsru6_config, &budget->i2c_adap);
352 if (budget->dvb_frontend) {
353 budget->dvb_frontend->ops.tuner_ops.set_params = alps_bsru6_tuner_set_params;
354 budget->dvb_frontend->tuner_priv = &budget->i2c_adap;
355
356 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
357 budget->dvb_frontend->ops.diseqc_send_burst = budget_diseqc_send_burst;
358 budget->dvb_frontend->ops.set_tone = budget_set_tone;
359 break;
360 }
361
362 // Try the grundig 29504-451
363 budget->dvb_frontend = dvb_attach(tda8083_attach, &grundig_29504_451_config, &budget->i2c_adap);
364 if (budget->dvb_frontend) {
365 budget->dvb_frontend->ops.tuner_ops.set_params = grundig_29504_451_tuner_set_params;
366 budget->dvb_frontend->ops.diseqc_send_master_cmd = budget_diseqc_send_master_cmd;
367 budget->dvb_frontend->ops.diseqc_send_burst = budget_diseqc_send_burst;
368 budget->dvb_frontend->ops.set_tone = budget_set_tone;
369 break;
370 }
371 break;
372 }
373
374 if (budget->dvb_frontend == NULL) {
375 printk("dvb-ttpci: A frontend driver was not found for device [%04x:%04x] subsystem [%04x:%04x]\n",
376 budget->dev->pci->vendor,
377 budget->dev->pci->device,
378 budget->dev->pci->subsystem_vendor,
379 budget->dev->pci->subsystem_device);
380 } else {
381 if (dvb_register_frontend(&budget->dvb_adapter, budget->dvb_frontend)) {
382 printk("budget-av: Frontend registration failed!\n");
383 dvb_frontend_detach(budget->dvb_frontend);
384 budget->dvb_frontend = NULL;
385 }
386 }
387 }
388
389 /* written by Emard */
budget_patch_attach(struct saa7146_dev * dev,struct saa7146_pci_extension_data * info)390 static int budget_patch_attach (struct saa7146_dev* dev, struct saa7146_pci_extension_data *info)
391 {
392 struct budget_patch *budget;
393 int err;
394 int count = 0;
395 int detected = 0;
396
397 #define PATCH_RESET 0
398 #define RPS_IRQ 0
399 #define HPS_SETUP 0
400 #if PATCH_RESET
401 saa7146_write(dev, MC1, MASK_31);
402 msleep(40);
403 #endif
404 #if HPS_SETUP
405 // initialize registers. Better to have it like this
406 // than leaving something unconfigured
407 saa7146_write(dev, DD1_STREAM_B, 0);
408 // port B VSYNC at rising edge
409 saa7146_write(dev, DD1_INIT, 0x00000200); // have this in budget-core too!
410 saa7146_write(dev, BRS_CTRL, 0x00000000); // VBI
411
412 // debi config
413 // saa7146_write(dev, DEBI_CONFIG, MASK_30|MASK_28|MASK_18);
414
415 // zero all HPS registers
416 saa7146_write(dev, HPS_H_PRESCALE, 0); // r68
417 saa7146_write(dev, HPS_H_SCALE, 0); // r6c
418 saa7146_write(dev, BCS_CTRL, 0); // r70
419 saa7146_write(dev, HPS_V_SCALE, 0); // r60
420 saa7146_write(dev, HPS_V_GAIN, 0); // r64
421 saa7146_write(dev, CHROMA_KEY_RANGE, 0); // r74
422 saa7146_write(dev, CLIP_FORMAT_CTRL, 0); // r78
423 // Set HPS prescaler for port B input
424 saa7146_write(dev, HPS_CTRL, (1<<30) | (0<<29) | (1<<28) | (0<<12) );
425 saa7146_write(dev, MC2,
426 0 * (MASK_08 | MASK_24) | // BRS control
427 0 * (MASK_09 | MASK_25) | // a
428 0 * (MASK_10 | MASK_26) | // b
429 1 * (MASK_06 | MASK_22) | // HPS_CTRL1
430 1 * (MASK_05 | MASK_21) | // HPS_CTRL2
431 0 * (MASK_01 | MASK_15) // DEBI
432 );
433 #endif
434 // Disable RPS1 and RPS0
435 saa7146_write(dev, MC1, ( MASK_29 | MASK_28));
436 // RPS1 timeout disable
437 saa7146_write(dev, RPS_TOV1, 0);
438
439 // code for autodetection
440 // will wait for VBI_B event (vertical blank at port B)
441 // and will reset GPIO3 after VBI_B is detected.
442 // (GPIO3 should be raised high by CPU to
443 // test if GPIO3 will generate vertical blank signal
444 // in budget patch GPIO3 is connected to VSYNC_B
445 count = 0;
446 #if 0
447 WRITE_RPS1(CMD_UPLOAD |
448 MASK_10 | MASK_09 | MASK_08 | MASK_06 | MASK_05 | MASK_04 | MASK_03 | MASK_02 );
449 #endif
450 WRITE_RPS1(CMD_PAUSE | EVT_VBI_B);
451 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
452 WRITE_RPS1(GPIO3_MSK);
453 WRITE_RPS1(SAA7146_GPIO_OUTLO<<24);
454 #if RPS_IRQ
455 // issue RPS1 interrupt to increment counter
456 WRITE_RPS1(CMD_INTERRUPT);
457 // at least a NOP is neede between two interrupts
458 WRITE_RPS1(CMD_NOP);
459 // interrupt again
460 WRITE_RPS1(CMD_INTERRUPT);
461 #endif
462 WRITE_RPS1(CMD_STOP);
463
464 #if RPS_IRQ
465 // set event counter 1 source as RPS1 interrupt (0x03) (rE4 p53)
466 // use 0x03 to track RPS1 interrupts - increase by 1 every gpio3 is toggled
467 // use 0x15 to track VPE interrupts - increase by 1 every vpeirq() is called
468 saa7146_write(dev, EC1SSR, (0x03<<2) | 3 );
469 // set event counter 1 threshold to maximum allowed value (rEC p55)
470 saa7146_write(dev, ECT1R, 0x3fff );
471 #endif
472 // Fix VSYNC level
473 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
474 // Set RPS1 Address register to point to RPS code (r108 p42)
475 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
476 // Enable RPS1, (rFC p33)
477 saa7146_write(dev, MC1, (MASK_13 | MASK_29 ));
478
479
480 mdelay(50);
481 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
482 mdelay(150);
483
484
485 if( (saa7146_read(dev, GPIO_CTRL) & 0x10000000) == 0)
486 detected = 1;
487
488 #if RPS_IRQ
489 printk("Event Counter 1 0x%04x\n", saa7146_read(dev, EC1R) & 0x3fff );
490 #endif
491 // Disable RPS1
492 saa7146_write(dev, MC1, ( MASK_29 ));
493
494 if(detected == 0)
495 printk("budget-patch not detected or saa7146 in non-default state.\n"
496 "try enabling resetting of 7146 with MASK_31 in MC1 register\n");
497
498 else
499 printk("BUDGET-PATCH DETECTED.\n");
500
501
502 /* OLD (Original design by Roberto Deza):
503 ** This code will setup the SAA7146_RPS1 to generate a square
504 ** wave on GPIO3, changing when a field (TS_HEIGHT/2 "lines" of
505 ** TS_WIDTH packets) has been acquired on SAA7146_D1B video port;
506 ** then, this GPIO3 output which is connected to the D1B_VSYNC
507 ** input, will trigger the acquisition of the alternate field
508 ** and so on.
509 ** Currently, the TT_budget / WinTV_Nova cards have two ICs
510 ** (74HCT4040, LVC74) for the generation of this VSYNC signal,
511 ** which seems that can be done perfectly without this :-)).
512 */
513
514 /* New design (By Emard)
515 ** this rps1 code will copy internal HS event to GPIO3 pin.
516 ** GPIO3 is in budget-patch hardware connected to port B VSYNC
517
518 ** HS is an internal event of 7146, accessible with RPS
519 ** and temporarily raised high every n lines
520 ** (n in defined in the RPS_THRESH1 counter threshold)
521 ** I think HS is raised high on the beginning of the n-th line
522 ** and remains high until this n-th line that triggered
523 ** it is completely received. When the reception of n-th line
524 ** ends, HS is lowered.
525
526 ** To transmit data over DMA, 7146 needs changing state at
527 ** port B VSYNC pin. Any changing of port B VSYNC will
528 ** cause some DMA data transfer, with more or less packets loss.
529 ** It depends on the phase and frequency of VSYNC and
530 ** the way of 7146 is instructed to trigger on port B (defined
531 ** in DD1_INIT register, 3rd nibble from the right valid
532 ** numbers are 0-7, see datasheet)
533 **
534 ** The correct triggering can minimize packet loss,
535 ** dvbtraffic should give this stable bandwidths:
536 ** 22k transponder = 33814 kbit/s
537 ** 27.5k transponder = 38045 kbit/s
538 ** by experiment it is found that the best results
539 ** (stable bandwidths and almost no packet loss)
540 ** are obtained using DD1_INIT triggering number 2
541 ** (Va at rising edge of VS Fa = HS x VS-failing forced toggle)
542 ** and a VSYNC phase that occurs in the middle of DMA transfer
543 ** (about byte 188*512=96256 in the DMA window).
544 **
545 ** Phase of HS is still not clear to me how to control,
546 ** It just happens to be so. It can be seen if one enables
547 ** RPS_IRQ and print Event Counter 1 in vpeirq(). Every
548 ** time RPS_INTERRUPT is called, the Event Counter 1 will
549 ** increment. That's how the 7146 is programmed to do event
550 ** counting in this budget-patch.c
551 ** I *think* HPS setting has something to do with the phase
552 ** of HS but I can't be 100% sure in that.
553
554 ** hardware debug note: a working budget card (including budget patch)
555 ** with vpeirq() interrupt setup in mode "0x90" (every 64K) will
556 ** generate 3 interrupts per 25-Hz DMA frame of 2*188*512 bytes
557 ** and that means 3*25=75 Hz of interrupt frequency, as seen by
558 ** watch cat /proc/interrupts
559 **
560 ** If this frequency is 3x lower (and data received in the DMA
561 ** buffer don't start with 0x47, but in the middle of packets,
562 ** whose lengths appear to be like 188 292 188 104 etc.
563 ** this means VSYNC line is not connected in the hardware.
564 ** (check soldering pcb and pins)
565 ** The same behaviour of missing VSYNC can be duplicated on budget
566 ** cards, by setting DD1_INIT trigger mode 7 in 3rd nibble.
567 */
568
569 // Setup RPS1 "program" (p35)
570 count = 0;
571
572
573 // Wait Source Line Counter Threshold (p36)
574 WRITE_RPS1(CMD_PAUSE | EVT_HS);
575 // Set GPIO3=1 (p42)
576 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
577 WRITE_RPS1(GPIO3_MSK);
578 WRITE_RPS1(SAA7146_GPIO_OUTHI<<24);
579 #if RPS_IRQ
580 // issue RPS1 interrupt
581 WRITE_RPS1(CMD_INTERRUPT);
582 #endif
583 // Wait reset Source Line Counter Threshold (p36)
584 WRITE_RPS1(CMD_PAUSE | RPS_INV | EVT_HS);
585 // Set GPIO3=0 (p42)
586 WRITE_RPS1(CMD_WR_REG_MASK | (GPIO_CTRL>>2));
587 WRITE_RPS1(GPIO3_MSK);
588 WRITE_RPS1(SAA7146_GPIO_OUTLO<<24);
589 #if RPS_IRQ
590 // issue RPS1 interrupt
591 WRITE_RPS1(CMD_INTERRUPT);
592 #endif
593 // Jump to begin of RPS program (p37)
594 WRITE_RPS1(CMD_JUMP);
595 WRITE_RPS1(dev->d_rps1.dma_handle);
596
597 // Fix VSYNC level
598 saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
599 // Set RPS1 Address register to point to RPS code (r108 p42)
600 saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
601
602 if (!(budget = kmalloc (sizeof(struct budget_patch), GFP_KERNEL)))
603 return -ENOMEM;
604
605 dprintk(2, "budget: %p\n", budget);
606
607 err = ttpci_budget_init(budget, dev, info, THIS_MODULE, adapter_nr);
608 if (err) {
609 kfree(budget);
610 return err;
611 }
612
613 // Set Source Line Counter Threshold, using BRS (rCC p43)
614 // It generates HS event every TS_HEIGHT lines
615 // this is related to TS_WIDTH set in register
616 // NUM_LINE_BYTE3 in budget-core.c. If NUM_LINE_BYTE
617 // low 16 bits are set to TS_WIDTH bytes (TS_WIDTH=2*188
618 //,then RPS_THRESH1
619 // should be set to trigger every TS_HEIGHT (512) lines.
620 //
621 saa7146_write(dev, RPS_THRESH1, budget->buffer_height | MASK_12 );
622
623 // saa7146_write(dev, RPS_THRESH0, ((TS_HEIGHT/2)<<16) |MASK_28| (TS_HEIGHT/2) |MASK_12 );
624 // Enable RPS1 (rFC p33)
625 saa7146_write(dev, MC1, (MASK_13 | MASK_29));
626
627
628 dev->ext_priv = budget;
629
630 budget->dvb_adapter.priv = budget;
631 frontend_init(budget);
632
633 ttpci_budget_init_hooks(budget);
634
635 return 0;
636 }
637
budget_patch_detach(struct saa7146_dev * dev)638 static int budget_patch_detach (struct saa7146_dev* dev)
639 {
640 struct budget_patch *budget = (struct budget_patch*) dev->ext_priv;
641 int err;
642
643 if (budget->dvb_frontend) {
644 dvb_unregister_frontend(budget->dvb_frontend);
645 dvb_frontend_detach(budget->dvb_frontend);
646 }
647 err = ttpci_budget_deinit (budget);
648
649 kfree (budget);
650
651 return err;
652 }
653
budget_patch_init(void)654 static int __init budget_patch_init(void)
655 {
656 return saa7146_register_extension(&budget_extension);
657 }
658
budget_patch_exit(void)659 static void __exit budget_patch_exit(void)
660 {
661 saa7146_unregister_extension(&budget_extension);
662 }
663
664 static struct saa7146_extension budget_extension = {
665 .name = "budget_patch dvb",
666 .flags = 0,
667
668 .module = THIS_MODULE,
669 .pci_tbl = pci_tbl,
670 .attach = budget_patch_attach,
671 .detach = budget_patch_detach,
672
673 .irq_mask = MASK_10,
674 .irq_func = ttpci_budget_irq10_handler,
675 };
676
677 module_init(budget_patch_init);
678 module_exit(budget_patch_exit);
679
680 MODULE_LICENSE("GPL");
681 MODULE_AUTHOR("Emard, Roberto Deza, Holger Waechtler, Michael Hunold, others");
682 MODULE_DESCRIPTION("Driver for full TS modified DVB-S SAA7146+AV7110 "
683 "based so-called Budget Patch cards");
684