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authorJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-06-10 14:47:26 -0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-06-10 14:47:26 -0400
commitf0cd91a68acdc9b49d7f6738b514a426da627649 (patch)
tree8ad73564015794197583b094217ae0a71e71e753 /drivers/media/dvb/ttpci/budget-ci.c
parent60eef25701d25e99c991dd0f4a9f3832a0c3ad3e (diff)
parent128e6ced247cda88f96fa9f2e4ba8b2c4a681560 (diff)
Merge ../linux-2.6
Diffstat (limited to 'drivers/media/dvb/ttpci/budget-ci.c')
-rw-r--r--drivers/media/dvb/ttpci/budget-ci.c105
1 files changed, 85 insertions, 20 deletions
diff --git a/drivers/media/dvb/ttpci/budget-ci.c b/drivers/media/dvb/ttpci/budget-ci.c
index 5f91036f5b87..e64a609cf4ff 100644
--- a/drivers/media/dvb/ttpci/budget-ci.c
+++ b/drivers/media/dvb/ttpci/budget-ci.c
@@ -71,6 +71,7 @@ struct budget_ci {
71 struct tasklet_struct msp430_irq_tasklet; 71 struct tasklet_struct msp430_irq_tasklet;
72 struct tasklet_struct ciintf_irq_tasklet; 72 struct tasklet_struct ciintf_irq_tasklet;
73 int slot_status; 73 int slot_status;
74 int ci_irq;
74 struct dvb_ca_en50221 ca; 75 struct dvb_ca_en50221 ca;
75 char ir_dev_name[50]; 76 char ir_dev_name[50];
76 u8 tuner_pll_address; /* used for philips_tdm1316l configs */ 77 u8 tuner_pll_address; /* used for philips_tdm1316l configs */
@@ -276,8 +277,10 @@ static int ciintf_slot_reset(struct dvb_ca_en50221 *ca, int slot)
276 if (slot != 0) 277 if (slot != 0)
277 return -EINVAL; 278 return -EINVAL;
278 279
279 // trigger on RISING edge during reset so we know when READY is re-asserted 280 if (budget_ci->ci_irq) {
280 saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI); 281 // trigger on RISING edge during reset so we know when READY is re-asserted
282 saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);
283 }
281 budget_ci->slot_status = SLOTSTATUS_RESET; 284 budget_ci->slot_status = SLOTSTATUS_RESET;
282 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0); 285 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0);
283 msleep(1); 286 msleep(1);
@@ -370,11 +373,50 @@ static void ciintf_interrupt(unsigned long data)
370 } 373 }
371} 374}
372 375
376static int ciintf_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
377{
378 struct budget_ci *budget_ci = (struct budget_ci *) ca->data;
379 unsigned int flags;
380
381 // ensure we don't get spurious IRQs during initialisation
382 if (!budget_ci->budget.ci_present)
383 return -EINVAL;
384
385 // read the CAM status
386 flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);
387 if (flags & CICONTROL_CAMDETECT) {
388 // mark it as present if it wasn't before
389 if (budget_ci->slot_status & SLOTSTATUS_NONE) {
390 budget_ci->slot_status = SLOTSTATUS_PRESENT;
391 }
392
393 // during a RESET, we check if we can read from IO memory to see when CAM is ready
394 if (budget_ci->slot_status & SLOTSTATUS_RESET) {
395 if (ciintf_read_attribute_mem(ca, slot, 0) == 0x1d) {
396 budget_ci->slot_status = SLOTSTATUS_READY;
397 }
398 }
399 } else {
400 budget_ci->slot_status = SLOTSTATUS_NONE;
401 }
402
403 if (budget_ci->slot_status != SLOTSTATUS_NONE) {
404 if (budget_ci->slot_status & SLOTSTATUS_READY) {
405 return DVB_CA_EN50221_POLL_CAM_PRESENT | DVB_CA_EN50221_POLL_CAM_READY;
406 }
407 return DVB_CA_EN50221_POLL_CAM_PRESENT;
408 }
409
410 return 0;
411}
412
373static int ciintf_init(struct budget_ci *budget_ci) 413static int ciintf_init(struct budget_ci *budget_ci)
374{ 414{
375 struct saa7146_dev *saa = budget_ci->budget.dev; 415 struct saa7146_dev *saa = budget_ci->budget.dev;
376 int flags; 416 int flags;
377 int result; 417 int result;
418 int ci_version;
419 int ca_flags;
378 420
379 memset(&budget_ci->ca, 0, sizeof(struct dvb_ca_en50221)); 421 memset(&budget_ci->ca, 0, sizeof(struct dvb_ca_en50221));
380 422
@@ -382,16 +424,29 @@ static int ciintf_init(struct budget_ci *budget_ci)
382 saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16) | 0x800); 424 saa7146_write(saa, MC1, saa7146_read(saa, MC1) | (0x800 << 16) | 0x800);
383 425
384 // test if it is there 426 // test if it is there
385 if ((ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CIVERSION, 1, 1, 0) & 0xa0) != 0xa0) { 427 ci_version = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CIVERSION, 1, 1, 0);
428 if ((ci_version & 0xa0) != 0xa0) {
386 result = -ENODEV; 429 result = -ENODEV;
387 goto error; 430 goto error;
388 } 431 }
432
389 // determine whether a CAM is present or not 433 // determine whether a CAM is present or not
390 flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0); 434 flags = ttpci_budget_debiread(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 1, 0);
391 budget_ci->slot_status = SLOTSTATUS_NONE; 435 budget_ci->slot_status = SLOTSTATUS_NONE;
392 if (flags & CICONTROL_CAMDETECT) 436 if (flags & CICONTROL_CAMDETECT)
393 budget_ci->slot_status = SLOTSTATUS_PRESENT; 437 budget_ci->slot_status = SLOTSTATUS_PRESENT;
394 438
439 // version 0xa2 of the CI firmware doesn't generate interrupts
440 if (ci_version == 0xa2) {
441 ca_flags = 0;
442 budget_ci->ci_irq = 0;
443 } else {
444 ca_flags = DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE |
445 DVB_CA_EN50221_FLAG_IRQ_FR |
446 DVB_CA_EN50221_FLAG_IRQ_DA;
447 budget_ci->ci_irq = 1;
448 }
449
395 // register CI interface 450 // register CI interface
396 budget_ci->ca.owner = THIS_MODULE; 451 budget_ci->ca.owner = THIS_MODULE;
397 budget_ci->ca.read_attribute_mem = ciintf_read_attribute_mem; 452 budget_ci->ca.read_attribute_mem = ciintf_read_attribute_mem;
@@ -401,23 +456,27 @@ static int ciintf_init(struct budget_ci *budget_ci)
401 budget_ci->ca.slot_reset = ciintf_slot_reset; 456 budget_ci->ca.slot_reset = ciintf_slot_reset;
402 budget_ci->ca.slot_shutdown = ciintf_slot_shutdown; 457 budget_ci->ca.slot_shutdown = ciintf_slot_shutdown;
403 budget_ci->ca.slot_ts_enable = ciintf_slot_ts_enable; 458 budget_ci->ca.slot_ts_enable = ciintf_slot_ts_enable;
459 budget_ci->ca.poll_slot_status = ciintf_poll_slot_status;
404 budget_ci->ca.data = budget_ci; 460 budget_ci->ca.data = budget_ci;
405 if ((result = dvb_ca_en50221_init(&budget_ci->budget.dvb_adapter, 461 if ((result = dvb_ca_en50221_init(&budget_ci->budget.dvb_adapter,
406 &budget_ci->ca, 462 &budget_ci->ca,
407 DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE | 463 ca_flags, 1)) != 0) {
408 DVB_CA_EN50221_FLAG_IRQ_FR |
409 DVB_CA_EN50221_FLAG_IRQ_DA, 1)) != 0) {
410 printk("budget_ci: CI interface detected, but initialisation failed.\n"); 464 printk("budget_ci: CI interface detected, but initialisation failed.\n");
411 goto error; 465 goto error;
412 } 466 }
467
413 // Setup CI slot IRQ 468 // Setup CI slot IRQ
414 tasklet_init(&budget_ci->ciintf_irq_tasklet, ciintf_interrupt, (unsigned long) budget_ci); 469 if (budget_ci->ci_irq) {
415 if (budget_ci->slot_status != SLOTSTATUS_NONE) { 470 tasklet_init(&budget_ci->ciintf_irq_tasklet, ciintf_interrupt, (unsigned long) budget_ci);
416 saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO); 471 if (budget_ci->slot_status != SLOTSTATUS_NONE) {
417 } else { 472 saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);
418 saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI); 473 } else {
474 saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQHI);
475 }
476 saa7146_write(saa, IER, saa7146_read(saa, IER) | MASK_03);
419 } 477 }
420 saa7146_write(saa, IER, saa7146_read(saa, IER) | MASK_03); 478
479 // enable interface
421 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 480 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,
422 CICONTROL_RESET, 1, 0); 481 CICONTROL_RESET, 1, 0);
423 482
@@ -426,10 +485,12 @@ static int ciintf_init(struct budget_ci *budget_ci)
426 budget_ci->budget.ci_present = 1; 485 budget_ci->budget.ci_present = 1;
427 486
428 // forge a fake CI IRQ so the CAM state is setup correctly 487 // forge a fake CI IRQ so the CAM state is setup correctly
429 flags = DVB_CA_EN50221_CAMCHANGE_REMOVED; 488 if (budget_ci->ci_irq) {
430 if (budget_ci->slot_status != SLOTSTATUS_NONE) 489 flags = DVB_CA_EN50221_CAMCHANGE_REMOVED;
431 flags = DVB_CA_EN50221_CAMCHANGE_INSERTED; 490 if (budget_ci->slot_status != SLOTSTATUS_NONE)
432 dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0, flags); 491 flags = DVB_CA_EN50221_CAMCHANGE_INSERTED;
492 dvb_ca_en50221_camchange_irq(&budget_ci->ca, 0, flags);
493 }
433 494
434 return 0; 495 return 0;
435 496
@@ -443,9 +504,13 @@ static void ciintf_deinit(struct budget_ci *budget_ci)
443 struct saa7146_dev *saa = budget_ci->budget.dev; 504 struct saa7146_dev *saa = budget_ci->budget.dev;
444 505
445 // disable CI interrupts 506 // disable CI interrupts
446 saa7146_write(saa, IER, saa7146_read(saa, IER) & ~MASK_03); 507 if (budget_ci->ci_irq) {
447 saa7146_setgpio(saa, 0, SAA7146_GPIO_INPUT); 508 saa7146_write(saa, IER, saa7146_read(saa, IER) & ~MASK_03);
448 tasklet_kill(&budget_ci->ciintf_irq_tasklet); 509 saa7146_setgpio(saa, 0, SAA7146_GPIO_INPUT);
510 tasklet_kill(&budget_ci->ciintf_irq_tasklet);
511 }
512
513 // reset interface
449 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0); 514 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 0, 1, 0);
450 msleep(1); 515 msleep(1);
451 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1, 516 ttpci_budget_debiwrite(&budget_ci->budget, DEBICICTL, DEBIADDR_CICONTROL, 1,
@@ -473,7 +538,7 @@ static void budget_ci_irq(struct saa7146_dev *dev, u32 * isr)
473 if (*isr & MASK_10) 538 if (*isr & MASK_10)
474 ttpci_budget_irq10_handler(dev, isr); 539 ttpci_budget_irq10_handler(dev, isr);
475 540
476 if ((*isr & MASK_03) && (budget_ci->budget.ci_present)) 541 if ((*isr & MASK_03) && (budget_ci->budget.ci_present) && (budget_ci->ci_irq))
477 tasklet_schedule(&budget_ci->ciintf_irq_tasklet); 542 tasklet_schedule(&budget_ci->ciintf_irq_tasklet);
478} 543}
479 544