static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
int *gate_error,
int *tc_error,
int *perm_stale_data)
{
unsigned int cidx = counter->counter_index;
const unsigned short gxx_status = ni_tio_read(counter,
NITIO_SHARED_STATUS_REG(cidx));
const unsigned short gi_status = ni_tio_read(counter,
NITIO_STATUS_REG(cidx));
unsigned int ack = 0;
if (gate_error)
*gate_error = 0;
if (tc_error)
*tc_error = 0;
if (perm_stale_data)
*perm_stale_data = 0;
if (gxx_status & GI_GATE_ERROR(cidx)) {
ack |= GI_GATE_ERROR_CONFIRM(cidx);
if (gate_error) {
/*
* 660x don't support automatic acknowledgment
* of gate interrupt via dma read/write
* and report bogus gate errors
*/
if (counter->counter_dev->variant !=
ni_gpct_variant_660x)
*gate_error = 1;
}
}
if (gxx_status & GI_TC_ERROR(cidx)) {
ack |= GI_TC_ERROR_CONFIRM(cidx);
if (tc_error)
*tc_error = 1;
}
if (gi_status & GI_TC)
ack |= GI_TC_INTERRUPT_ACK;
if (gi_status & GI_GATE_INTERRUPT) {
if (should_ack_gate(counter))
ack |= GI_GATE_INTERRUPT_ACK;
}
if (ack)
ni_tio_write(counter, ack, NITIO_INT_ACK_REG(cidx));
if (ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)) &
GI_LOADING_ON_GATE) {
if (ni_tio_read(counter, NITIO_STATUS2_REG(cidx)) &
GI_PERMANENT_STALE(cidx)) {
dev_info(counter->counter_dev->dev->class_dev,
"%s: Gi_Permanent_Stale_Data detected.\n",
__func__);
if (perm_stale_data)
*perm_stale_data = 1;
}
}
}
void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *gate_error,
int *tc_error, int *perm_stale_data,
int *stale_data)
{
unsigned cidx = counter->counter_index;
const unsigned short gxx_status = read_register(counter,
NITIO_SHARED_STATUS_REG(cidx));
const unsigned short gi_status = read_register(counter,
NITIO_STATUS_REG(cidx));
unsigned ack = 0;
if (gate_error)
*gate_error = 0;
if (tc_error)
*tc_error = 0;
if (perm_stale_data)
*perm_stale_data = 0;
if (stale_data)
*stale_data = 0;
if (gxx_status & Gi_Gate_Error_Bit(cidx)) {
ack |= Gi_Gate_Error_Confirm_Bit(cidx);
if (gate_error) {
/*660x don't support automatic acknowledgement
of gate interrupt via dma read/write
and report bogus gate errors */
if (counter->counter_dev->variant !=
ni_gpct_variant_660x) {
*gate_error = 1;
}
}
}
if (gxx_status & Gi_TC_Error_Bit(cidx)) {
ack |= Gi_TC_Error_Confirm_Bit(cidx);
if (tc_error)
*tc_error = 1;
}
if (gi_status & Gi_TC_Bit)
ack |= Gi_TC_Interrupt_Ack_Bit;
if (gi_status & Gi_Gate_Interrupt_Bit) {
if (should_ack_gate(counter))
ack |= Gi_Gate_Interrupt_Ack_Bit;
}
if (ack)
write_register(counter, ack, NITIO_INT_ACK_REG(cidx));
if (ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)) &
Gi_Loading_On_Gate_Bit) {
if (gxx_status & Gi_Stale_Data_Bit(cidx)) {
if (stale_data)
*stale_data = 1;
}
if (read_register(counter, NITIO_STATUS2_REG(cidx)) &
Gi_Permanent_Stale_Bit(cidx)) {
dev_info(counter->counter_dev->dev->class_dev,
"%s: Gi_Permanent_Stale_Data detected.\n",
__func__);
if (perm_stale_data)
*perm_stale_data = 1;
}
}
}