static void
ata_periodic_poll(void *data)
{
struct ata_channel *ch = (struct ata_channel *)data;
callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
ata_interrupt(ch);
}
static int
ata_kauai_dma_interrupt(struct ata_kauai_softc *sc)
{
/* Clear the DMA interrupt bits */
bus_write_4(sc->sc_memr, DMA_IRQ_REG, 0x80000000);
return ata_interrupt(sc);
}
static irqreturn_t rb500_pata_irq_handler(int irq, void *dev_instance)
{
struct ata_host *ah = dev_instance;
struct rb500_cf_info *info = ah->private_data;
if (gpio_get_value(info->gpio_line)) {
set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
if (!info->frozen)
ata_interrupt(info->irq, dev_instance);
} else {
set_irq_type(info->irq, IRQ_TYPE_LEVEL_HIGH);
}
return IRQ_HANDLED;
}
static void
atausb_bbb_finish(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status err)
{
struct atausb_softc *sc = (struct atausb_softc *)priv;
struct ata_request *request = sc->ata_request;
usbd_xfer_handle next_xfer;
/* device_printf(sc->dev, "BBB state %d: %s\n", sc->state,
usbd_errstr(err)); */
if (sc->state == ATAUSB_S_DETACH) {
device_printf(sc->dev, "WARNING - device has been removed\n");
return;
}
switch (sc->state) {
case ATAUSB_S_BBB_COMMAND: /* command transport phase */
if (err) {
if (atausbdebug)
device_printf(sc->dev, "failed to send CBW\n");
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
/* next is data transport phase, setup transfer */
sc->state = ATAUSB_S_BBB_DATA;
if (request->flags & ATA_R_READ) {
if (atausb_start(sc, sc->bulkin_pipe,
request->data, request->bytecount,
USBD_SHORT_XFER_OK,
sc->transfer[ATAUSB_T_BBB_DATA])) {
request->result = EIO;
atausb_bbb_reset(sc);
}
return;
}
if (request->flags & ATA_R_WRITE) {
if (atausb_start(sc, sc->bulkout_pipe,
request->data, request->bytecount,
0, sc->transfer[ATAUSB_T_BBB_DATA])) {
request->result = EIO;
atausb_bbb_reset(sc);
}
return;
}
/* FALLTHROUGH */
case ATAUSB_S_BBB_DATA: /* data transport phase */
if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
usbd_get_xfer_status(xfer, NULL, NULL, &request->donecount, NULL);
if (err) {
if (atausbdebug)
device_printf(sc->dev, "data %s count %d failed: %s\n",
(request->flags & ATA_R_READ?"read":"write"),
request->bytecount, usbd_errstr(err));
if (err == USBD_STALLED) {
atausb_clear_stall(sc,
(request->flags & ATA_R_READ ?
sc->bulkin : sc->bulkout),
(request->flags & ATA_R_READ ?
sc->bulkin_pipe : sc->bulkout_pipe),
ATAUSB_S_BBB_DCLEAR,
sc->transfer[ATAUSB_T_BBB_DCLEAR]);
}
else {
request->result = EIO;
atausb_bbb_reset(sc);
}
return;
}
}
/* FALLTHROUGH */
case ATAUSB_S_BBB_DCLEAR: /* stall clear after data phase */
case ATAUSB_S_BBB_SCLEAR: /* stall clear after status phase */
if (err) {
if (atausbdebug)
device_printf(sc->dev, "bulk%s stall clear failed %s\n",
(request->flags & ATA_R_READ ? "in" : "out"),
usbd_errstr(err));
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
if (sc->state == ATAUSB_S_BBB_COMMAND ||
sc->state == ATAUSB_S_BBB_DATA ||
sc->state == ATAUSB_S_BBB_DCLEAR) {
/* first attempt on status transport phase setup transfer */
sc->state = ATAUSB_S_BBB_STATUS1;
next_xfer = sc->transfer[ATAUSB_T_BBB_CSW1];
}
else {
/* second attempt of fetching status */
sc->state = ATAUSB_S_BBB_STATUS2;
next_xfer = sc->transfer[ATAUSB_T_BBB_CSW2];
}
if (atausb_start(sc, sc->bulkin_pipe, &sc->csw, sizeof(struct bbb_csw),
USBD_SHORT_XFER_OK, next_xfer)) {
request->result = EIO;
atausb_bbb_reset(sc);
}
return;
case ATAUSB_S_BBB_STATUS1: /* status transfer first attempt */
case ATAUSB_S_BBB_STATUS2: /* status transfer second attempt */
if (err) {
if (atausbdebug)
device_printf(sc->dev, "cannot get CSW, %s%s\n",
usbd_errstr(err),
sc->state == ATAUSB_S_BBB_STATUS1 ? ", retry":"");
if (sc->state == ATAUSB_S_BBB_STATUS1) {
atausb_clear_stall(sc, sc->bulkin, sc->bulkin_pipe,
ATAUSB_S_BBB_SCLEAR,
sc->transfer[ATAUSB_T_BBB_SCLEAR]);
}
else {
request->result = EIO;
atausb_bbb_reset(sc);
}
return;
}
int residue = UGETDW(sc->csw.residue);
if (!residue &&
(request->bytecount - request->donecount))
residue = request->bytecount - request->donecount;
/* check CSW and handle eventual error */
if (UGETDW(sc->csw.signature) != CSWSIGNATURE) {
if (atausbdebug)
device_printf(sc->dev, "bad CSW signature 0x%08x != 0x%08x\n",
UGETDW(sc->csw.signature), CSWSIGNATURE);
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
else if (UGETDW(sc->csw.tag) != UGETDW(sc->cbw.tag)) {
if (atausbdebug)
device_printf(sc->dev, "bad CSW tag %d != %d\n",
UGETDW(sc->csw.tag), UGETDW(sc->cbw.tag));
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
else if (sc->csw.status > CSWSTATUS_PHASE) {
if (atausbdebug)
device_printf(sc->dev, "bad CSW status %d > %d\n",
sc->csw.status, CSWSTATUS_PHASE);
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
else if (sc->csw.status == CSWSTATUS_PHASE) {
if (atausbdebug)
device_printf(sc->dev, "phase error residue = %d\n", residue);
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
else if (request->donecount > request->bytecount) {
if (atausbdebug)
device_printf(sc->dev, "buffer overrun %d > %d",
request->donecount, request->bytecount);
request->result = EIO;
atausb_bbb_reset(sc);
return;
}
else if (sc->csw.status == CSWSTATUS_FAILED) {
if (atausbdebug)
device_printf(sc->dev, "CSWSTATUS_FAILED\n");
request->error = ATA_E_ATAPI_SENSE_MASK ;
sc->state = ATAUSB_S_IDLE;
ata_interrupt(device_get_softc(request->parent));
return;
}
else {
sc->state = ATAUSB_S_IDLE;
ata_interrupt(device_get_softc(request->parent));
return;
}
/* NOT REACHED */
case ATAUSB_S_BBB_RESET1:
if (err)
if (atausbdebug)
device_printf(sc->dev,
"BBB reset failure: %s\n", usbd_errstr(err));
atausb_clear_stall(sc, sc->bulkin, sc->bulkin_pipe,
ATAUSB_S_BBB_RESET2,
sc->transfer[ATAUSB_T_BBB_RESET2]);
return;
case ATAUSB_S_BBB_RESET2:
if (err)
if (atausbdebug)
device_printf(sc->dev, "BBB bulkin clear stall failure: %s\n",
usbd_errstr(err));
atausb_clear_stall(sc, sc->bulkout, sc->bulkout_pipe,
ATAUSB_S_BBB_RESET3,
sc->transfer[ATAUSB_T_BBB_RESET3]);
return;
case ATAUSB_S_BBB_RESET3:
if (err)
if (atausbdebug)
device_printf(sc->dev, "BBB bulk-out clear stall failure: %s\n",
usbd_errstr(err));
sc->state = ATAUSB_S_IDLE;
if (request) {
if (err)
request->result = ENXIO;
else
request->result = EIO;
ata_interrupt(device_get_softc(request->parent));
}
return;
default:
if (atausbdebug)
device_printf(sc->dev, "unknown state %d", sc->state);
}
}
