added a little more debug info

diff --git a/comedi/drivers/cb_pcidas.c b/comedi/drivers/cb_pcidas.c
index bdcd6aa4f3ab4f959be13d66c4b97bbfbb30c3d5..dbe1e0fe051d712478ad032175b741e4d17940f2 100644 (file)
--- a/comedi/drivers/cb_pcidas.c
+++ b/comedi/drivers/cb_pcidas.c
@@ -87,6 +87,9 @@ add analog out support
 
 // amcc s5933 pci configuration registers
 #define INTCSR 0x38    // interrupt control/status
+#define   OUTBOX_BYTE(x)       ((x) & 0x3)
+#define   OUTBOX_SELECT(x)     (((x) & 0x3) << 2)
+#define   OUTBOX_EMPTY_INT     0x10    // enable outbox empty interrupt
 #define   INBOX_BYTE(x)        (((x) & 0x3) << 8)
 #define   INBOX_SELECT(x)      (((x) & 0x3) << 10)
 #define   INBOX_FULL_INT       0x1000  //enable inbox full interrupt
@@ -511,7 +514,9 @@ found:
                (void *)(devpriv->pacer_counter_dio + DIO_8255));
 
 #ifdef CB_PCIDAS_DEBUG
-       // enable interrupts on amcc s5933
+       /* Enable interrupts on amcc s5933.  Will probably also need to
+        * enable outgoing mailbox interrupts to get waveform output
+        * running on pci-das1602 models */
        outl(INBOX_BYTE(0) | INBOX_SELECT(0) | INBOX_FULL_INT, devpriv->s5933_config + INTCSR);
        rt_printk("attaching, incsr is 0x%x\n", inl(devpriv->s5933_config + INTCSR));
 #endif
@@ -942,6 +947,9 @@ static void cb_pcidas_interrupt(int irq, void *d, struct pt_regs *regs)
 
 static int cb_pcidas_cancel(comedi_device *dev, comedi_subdevice *s)
 {
+#ifdef CB_PCIDAS_DEBUG
+rt_printk("mailbox status is 0x%x\n", inl(devpriv->s5933_config + 0x34));
+#endif
        // disable interrupts
        outw(0, devpriv->control_status + INT_ADCFIFO);
        // software pacer source