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