Version:  2.0.40 2.2.26 2.4.37 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2

Linux/drivers/media/pci/ttpci/budget-patch.c

  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 */
 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 
 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 
 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 
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 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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 */
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 
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 
654 static int __init budget_patch_init(void)
655 {
656         return saa7146_register_extension(&budget_extension);
657 }
658 
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 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us