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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 */
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 
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, 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 
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 
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 
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 
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 
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 
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 
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 
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 
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 */
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 
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 
651 static int __init budget_patch_init(void)
652 {
653         return saa7146_register_extension(&budget_extension);
654 }
655 
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 

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