void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *gate_error,
int *tc_error, int *perm_stale_data, int *stale_data)
{
const unsigned short gxx_status = read_register(counter,
NITIO_Gxx_Status_Reg(counter->counter_index));
const unsigned short gi_status = read_register(counter,
NITIO_Gi_Status_Reg(counter->counter_index));
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(counter->counter_index)) {
ack |= Gi_Gate_Error_Confirm_Bit(counter->counter_index);
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(counter->counter_index)) {
ack |= Gi_TC_Error_Confirm_Bit(counter->counter_index);
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_Gi_Interrupt_Acknowledge_Reg(counter->
counter_index));
if (ni_tio_get_soft_copy(counter,
NITIO_Gi_Mode_Reg(counter->
counter_index)) & Gi_Loading_On_Gate_Bit) {
if (gxx_status & Gi_Stale_Data_Bit(counter->counter_index)) {
if (stale_data)
*stale_data = 1;
}
if (read_register(counter,
NITIO_Gxx_Joint_Status2_Reg(counter->
counter_index)) &
Gi_Permanent_Stale_Bit(counter->counter_index)) {
rt_printk("%s: Gi_Permanent_Stale_Data detected.\n",
__FUNCTION__);
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)
{
const unsigned short gxx_status = read_register(counter,
NITIO_Gxx_Status_Reg
(counter->
counter_index));
const unsigned short gi_status = read_register(counter,
NITIO_Gi_Status_Reg
(counter->
counter_index));
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(counter->counter_index)) {
ack |= Gi_Gate_Error_Confirm_Bit(counter->counter_index);
if (gate_error) {
if (counter->counter_dev->variant !=
ni_gpct_variant_660x) {
*gate_error = 1;
}
}
}
if (gxx_status & Gi_TC_Error_Bit(counter->counter_index)) {
ack |= Gi_TC_Error_Confirm_Bit(counter->counter_index);
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_Gi_Interrupt_Acknowledge_Reg
(counter->counter_index));
if (ni_tio_get_soft_copy
(counter,
NITIO_Gi_Mode_Reg(counter->counter_index)) &
Gi_Loading_On_Gate_Bit) {
if (gxx_status & Gi_Stale_Data_Bit(counter->counter_index)) {
if (stale_data)
*stale_data = 1;
}
if (read_register(counter,
NITIO_Gxx_Joint_Status2_Reg
(counter->counter_index)) &
Gi_Permanent_Stale_Bit(counter->counter_index)) {
printk(KERN_INFO "%s: Gi_Permanent_Stale_Data detected.\n",
__func__);
if (perm_stale_data)
*perm_stale_data = 1;
}
}
}