|
Lines 535-547
twsi_intr(void *arg)
Link Here
|
| 535 |
debugf(sc->dev, "Got interrupt Current msg=%x\n", sc->msg_idx); |
535 |
debugf(sc->dev, "Got interrupt Current msg=%x\n", sc->msg_idx); |
| 536 |
|
536 |
|
| 537 |
status = TWSI_READ(sc, sc->reg_status); |
537 |
status = TWSI_READ(sc, sc->reg_status); |
| 538 |
debugf(sc->dev, "initial status=%x\n", status); |
538 |
debugf(sc->dev, "reg control=%x\n", TWSI_READ(sc, sc->reg_control)); |
| 539 |
|
539 |
|
| 540 |
switch (status) { |
540 |
switch (status) { |
| 541 |
case TWSI_STATUS_START: |
541 |
case TWSI_STATUS_START: |
| 542 |
case TWSI_STATUS_RPTD_START: |
542 |
case TWSI_STATUS_RPTD_START: |
| 543 |
/* Transmit the address */ |
543 |
/* Transmit the address */ |
| 544 |
debugf(sc->dev, "Send the address\n"); |
544 |
debugf(sc->dev, "Send the address (%x)", sc->msgs[sc->msg_idx].slave); |
| 545 |
|
545 |
|
| 546 |
if (sc->msgs[sc->msg_idx].flags & IIC_M_RD) |
546 |
if (sc->msgs[sc->msg_idx].flags & IIC_M_RD) |
| 547 |
TWSI_WRITE(sc, sc->reg_data, |
547 |
TWSI_WRITE(sc, sc->reg_data, |
|
Lines 631-639
twsi_intr(void *arg)
Link Here
|
| 631 |
TWSI_WRITE(sc, sc->reg_control, |
631 |
TWSI_WRITE(sc, sc->reg_control, |
| 632 |
sc->control_val | TWSI_CONTROL_STOP); |
632 |
sc->control_val | TWSI_CONTROL_STOP); |
| 633 |
} else { |
633 |
} else { |
| 634 |
debugf(sc->dev, "No ack when receiving data\n"); |
634 |
debugf(sc->dev, "No ack when receiving data, sending stop anyway\n"); |
| 635 |
sc->error = ENXIO; |
635 |
if (!(sc->msgs[sc->msg_idx].flags & IIC_M_NOSTOP)) |
| 636 |
sc->control_val = 0; |
636 |
TWSI_WRITE(sc, sc->reg_control, |
|
|
637 |
sc->control_val | TWSI_CONTROL_STOP); |
| 637 |
} |
638 |
} |
| 638 |
sc->transfer = 0; |
639 |
sc->transfer = 0; |
| 639 |
transfer_done = 1; |
640 |
transfer_done = 1; |
|
Lines 647-652
twsi_intr(void *arg)
Link Here
|
| 647 |
wakeup(sc); |
648 |
wakeup(sc); |
| 648 |
break; |
649 |
break; |
| 649 |
} |
650 |
} |
|
|
651 |
debugf(sc->dev, "Refresh reg_control\n"); |
| 652 |
TWSI_WRITE(sc, sc->reg_control, |
| 653 |
sc->control_val | TWSI_CONTROL_IFLG); |
| 650 |
|
654 |
|
| 651 |
debugf(sc->dev, "Done with interrupts\n\n"); |
655 |
debugf(sc->dev, "Done with interrupts\n\n"); |
| 652 |
if (transfer_done == 1) { |
656 |
if (transfer_done == 1) { |