aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/frontends/stv0299.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb/frontends/stv0299.c')
-rw-r--r--drivers/media/dvb/frontends/stv0299.c114
1 files changed, 84 insertions, 30 deletions
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c
index 15b40541b62d..cfa3928bb487 100644
--- a/drivers/media/dvb/frontends/stv0299.c
+++ b/drivers/media/dvb/frontends/stv0299.c
@@ -70,6 +70,7 @@ struct stv0299_state {
70#define STATUS_UCBLOCKS 1 70#define STATUS_UCBLOCKS 1
71 71
72static int debug; 72static int debug;
73static int debug_legacy_dish_switch;
73#define dprintk(args...) \ 74#define dprintk(args...) \
74 do { \ 75 do { \
75 if (debug) printk(KERN_DEBUG "stv0299: " args); \ 76 if (debug) printk(KERN_DEBUG "stv0299: " args); \
@@ -93,7 +94,7 @@ static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data)
93 94
94int stv0299_writereg (struct dvb_frontend* fe, u8 reg, u8 data) 95int stv0299_writereg (struct dvb_frontend* fe, u8 reg, u8 data)
95{ 96{
96 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 97 struct stv0299_state* state = fe->demodulator_priv;
97 98
98 return stv0299_writeregI(state, reg, data); 99 return stv0299_writeregI(state, reg, data);
99} 100}
@@ -218,7 +219,7 @@ static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout)
218 219
219static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate) 220static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate)
220{ 221{
221 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 222 struct stv0299_state* state = fe->demodulator_priv;
222 u64 big = srate; 223 u64 big = srate;
223 u32 ratio; 224 u32 ratio;
224 225
@@ -269,7 +270,7 @@ static int stv0299_get_symbolrate (struct stv0299_state* state)
269static int stv0299_send_diseqc_msg (struct dvb_frontend* fe, 270static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
270 struct dvb_diseqc_master_cmd *m) 271 struct dvb_diseqc_master_cmd *m)
271{ 272{
272 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 273 struct stv0299_state* state = fe->demodulator_priv;
273 u8 val; 274 u8 val;
274 int i; 275 int i;
275 276
@@ -299,7 +300,7 @@ static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
299 300
300static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst) 301static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
301{ 302{
302 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 303 struct stv0299_state* state = fe->demodulator_priv;
303 u8 val; 304 u8 val;
304 305
305 dprintk ("%s\n", __FUNCTION__); 306 dprintk ("%s\n", __FUNCTION__);
@@ -326,7 +327,7 @@ static int stv0299_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t
326 327
327static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone) 328static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
328{ 329{
329 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 330 struct stv0299_state* state = fe->demodulator_priv;
330 u8 val; 331 u8 val;
331 332
332 if (stv0299_wait_diseqc_idle (state, 100) < 0) 333 if (stv0299_wait_diseqc_idle (state, 100) < 0)
@@ -348,7 +349,7 @@ static int stv0299_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
348 349
349static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage) 350static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
350{ 351{
351 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 352 struct stv0299_state* state = fe->demodulator_priv;
352 u8 reg0x08; 353 u8 reg0x08;
353 u8 reg0x0c; 354 u8 reg0x0c;
354 355
@@ -385,34 +386,84 @@ static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag
385 }; 386 };
386} 387}
387 388
388static int stv0299_send_legacy_dish_cmd(struct dvb_frontend* fe, u32 cmd) 389static inline s32 stv0299_calc_usec_delay (struct timeval lasttime, struct timeval curtime)
389{ 390{
391 return ((curtime.tv_usec < lasttime.tv_usec) ?
392 1000000 - lasttime.tv_usec + curtime.tv_usec :
393 curtime.tv_usec - lasttime.tv_usec);
394}
395
396static void stv0299_sleep_until (struct timeval *waketime, u32 add_usec)
397{
398 struct timeval lasttime;
399 s32 delta, newdelta;
400
401 waketime->tv_usec += add_usec;
402 if (waketime->tv_usec >= 1000000) {
403 waketime->tv_usec -= 1000000;
404 waketime->tv_sec++;
405 }
406
407 do_gettimeofday (&lasttime);
408 delta = stv0299_calc_usec_delay (lasttime, *waketime);
409 if (delta > 2500) {
410 msleep ((delta - 1500) / 1000);
411 do_gettimeofday (&lasttime);
412 newdelta = stv0299_calc_usec_delay (lasttime, *waketime);
413 delta = (newdelta > delta) ? 0 : newdelta;
414 }
415 if (delta > 0)
416 udelay (delta);
417}
418
419static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd)
420{
421 struct stv0299_state* state = fe->demodulator_priv;
422 u8 reg0x08;
423 u8 reg0x0c;
424 u8 lv_mask = 0x40;
390 u8 last = 1; 425 u8 last = 1;
391 int i; 426 int i;
427 struct timeval nexttime;
428 struct timeval tv[10];
392 429
393 /* reset voltage at the end 430 reg0x08 = stv0299_readreg (state, 0x08);
394 if((0x50 & stv0299_readreg (i2c, 0x0c)) == 0x50) 431 reg0x0c = stv0299_readreg (state, 0x0c);
395 cmd |= 0x80; 432 reg0x0c &= 0x0f;
396 else 433 stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
397 cmd &= 0x7F; 434 if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
398 */ 435 lv_mask = 0x10;
399 436
400 cmd = cmd << 1; 437 cmd = cmd << 1;
401 dprintk("%s switch command: 0x%04x\n",__FUNCTION__, cmd); 438 if (debug_legacy_dish_switch)
439 printk ("%s switch command: 0x%04x\n",__FUNCTION__, cmd);
440
441 do_gettimeofday (&nexttime);
442 if (debug_legacy_dish_switch)
443 memcpy (&tv[0], &nexttime, sizeof (struct timeval));
444 stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
402 445
403 stv0299_set_voltage(fe,SEC_VOLTAGE_18); 446 stv0299_sleep_until (&nexttime, 32000);
404 msleep(32);
405 447
406 for (i=0; i<9; i++) { 448 for (i=0; i<9; i++) {
449 if (debug_legacy_dish_switch)
450 do_gettimeofday (&tv[i+1]);
407 if((cmd & 0x01) != last) { 451 if((cmd & 0x01) != last) {
408 stv0299_set_voltage(fe, last ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); 452 /* set voltage to (last ? 13V : 18V) */
453 stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50));
409 last = (last) ? 0 : 1; 454 last = (last) ? 0 : 1;
410 } 455 }
411 456
412 cmd = cmd >> 1; 457 cmd = cmd >> 1;
413 458
414 if (i != 8) 459 if (i != 8)
415 msleep(8); 460 stv0299_sleep_until (&nexttime, 8000);
461 }
462 if (debug_legacy_dish_switch) {
463 printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
464 __FUNCTION__, fe->dvb->num);
465 for (i=1; i < 10; i++)
466 printk ("%d: %d\n", i, stv0299_calc_usec_delay (tv[i-1] , tv[i]));
416 } 467 }
417 468
418 return 0; 469 return 0;
@@ -420,7 +471,7 @@ static int stv0299_send_legacy_dish_cmd(struct dvb_frontend* fe, u32 cmd)
420 471
421static int stv0299_init (struct dvb_frontend* fe) 472static int stv0299_init (struct dvb_frontend* fe)
422{ 473{
423 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 474 struct stv0299_state* state = fe->demodulator_priv;
424 int i; 475 int i;
425 476
426 dprintk("stv0299: init chip\n"); 477 dprintk("stv0299: init chip\n");
@@ -439,7 +490,7 @@ static int stv0299_init (struct dvb_frontend* fe)
439 490
440static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status) 491static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status)
441{ 492{
442 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 493 struct stv0299_state* state = fe->demodulator_priv;
443 494
444 u8 signal = 0xff - stv0299_readreg (state, 0x18); 495 u8 signal = 0xff - stv0299_readreg (state, 0x18);
445 u8 sync = stv0299_readreg (state, 0x1b); 496 u8 sync = stv0299_readreg (state, 0x1b);
@@ -467,7 +518,7 @@ static int stv0299_read_status(struct dvb_frontend* fe, fe_status_t* status)
467 518
468static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) 519static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
469{ 520{
470 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 521 struct stv0299_state* state = fe->demodulator_priv;
471 522
472 if (state->errmode != STATUS_BER) return 0; 523 if (state->errmode != STATUS_BER) return 0;
473 *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); 524 *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
@@ -477,7 +528,7 @@ static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
477 528
478static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength) 529static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
479{ 530{
480 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 531 struct stv0299_state* state = fe->demodulator_priv;
481 532
482 s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8) 533 s32 signal = 0xffff - ((stv0299_readreg (state, 0x18) << 8)
483 | stv0299_readreg (state, 0x19)); 534 | stv0299_readreg (state, 0x19));
@@ -494,7 +545,7 @@ static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
494 545
495static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr) 546static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
496{ 547{
497 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 548 struct stv0299_state* state = fe->demodulator_priv;
498 549
499 s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8) 550 s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8)
500 | stv0299_readreg (state, 0x25)); 551 | stv0299_readreg (state, 0x25));
@@ -506,7 +557,7 @@ static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
506 557
507static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) 558static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
508{ 559{
509 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 560 struct stv0299_state* state = fe->demodulator_priv;
510 561
511 if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0; 562 if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0;
512 else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); 563 else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e);
@@ -516,7 +567,7 @@ static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
516 567
517static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) 568static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
518{ 569{
519 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 570 struct stv0299_state* state = fe->demodulator_priv;
520 int invval = 0; 571 int invval = 0;
521 572
522 dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__); 573 dprintk ("%s : FE_SET_FRONTEND\n", __FUNCTION__);
@@ -584,7 +635,7 @@ static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
584 635
585static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p) 636static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters * p)
586{ 637{
587 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 638 struct stv0299_state* state = fe->demodulator_priv;
588 s32 derot_freq; 639 s32 derot_freq;
589 int invval; 640 int invval;
590 641
@@ -609,7 +660,7 @@ static int stv0299_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
609 660
610static int stv0299_sleep(struct dvb_frontend* fe) 661static int stv0299_sleep(struct dvb_frontend* fe)
611{ 662{
612 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 663 struct stv0299_state* state = fe->demodulator_priv;
613 664
614 stv0299_writeregI(state, 0x02, 0x80); 665 stv0299_writeregI(state, 0x02, 0x80);
615 state->initialised = 0; 666 state->initialised = 0;
@@ -619,7 +670,7 @@ static int stv0299_sleep(struct dvb_frontend* fe)
619 670
620static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) 671static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
621{ 672{
622 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 673 struct stv0299_state* state = fe->demodulator_priv;
623 674
624 fesettings->min_delay_ms = state->config->min_delay_ms; 675 fesettings->min_delay_ms = state->config->min_delay_ms;
625 if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) { 676 if (fesettings->parameters.u.qpsk.symbol_rate < 10000000) {
@@ -634,7 +685,7 @@ static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_fronten
634 685
635static void stv0299_release(struct dvb_frontend* fe) 686static void stv0299_release(struct dvb_frontend* fe)
636{ 687{
637 struct stv0299_state* state = (struct stv0299_state*) fe->demodulator_priv; 688 struct stv0299_state* state = fe->demodulator_priv;
638 kfree(state); 689 kfree(state);
639} 690}
640 691
@@ -647,7 +698,7 @@ struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
647 int id; 698 int id;
648 699
649 /* allocate memory for the internal state */ 700 /* allocate memory for the internal state */
650 state = (struct stv0299_state*) kmalloc(sizeof(struct stv0299_state), GFP_KERNEL); 701 state = kmalloc(sizeof(struct stv0299_state), GFP_KERNEL);
651 if (state == NULL) goto error; 702 if (state == NULL) goto error;
652 703
653 /* setup the state */ 704 /* setup the state */
@@ -719,6 +770,9 @@ static struct dvb_frontend_ops stv0299_ops = {
719 .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd, 770 .dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd,
720}; 771};
721 772
773module_param(debug_legacy_dish_switch, int, 0444);
774MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches");
775
722module_param(debug, int, 0644); 776module_param(debug, int, 0644);
723MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); 777MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
724 778