Add missing isa_dmatc() function.

This may or may not be correct,  Only the pcii driver would notice and
it doesn't support PC98 yet.

1 files changed, 12 insertions, 7 deletions

diff --git a/sys/pc98/cbus/cbus_dma.c b/sys/pc98/cbus/cbus_dma.c
index 25f52f9..541185a 100644
--- a/sys/pc98/cbus/cbus_dma.c
+++ b/sys/pc98/cbus/cbus_dma.c
@@ -73,22 +73,17 @@
 /*
 **  Register definitions for DMA controller 1 (channels 0..3):
 */
-#ifdef PC98
 #define	DMA1_CHN(c)	(IO_DMA + (4*(c)))	/* addr reg for channel c */
+#define	DMA1_STATUS	(IO_DMA + 0x10)		/* status register */
 #define	DMA1_SMSK	(IO_DMA + 0x14)		/* single mask register */
 #define	DMA1_MODE	(IO_DMA + 0x16)		/* mode register */
 #define	DMA1_FFC	(IO_DMA + 0x18)		/* clear first/last FF */
-#else
-#define	DMA1_CHN(c)	(IO_DMA1 + 1*(2*(c)))	/* addr reg for channel c */
-#define	DMA1_SMSK	(IO_DMA1 + 1*10)	/* single mask register */
-#define	DMA1_MODE	(IO_DMA1 + 1*11)	/* mode register */
-#define	DMA1_FFC	(IO_DMA1 + 1*12)	/* clear first/last FF */
-#endif
 
 /*
 **  Register definitions for DMA controller 2 (channels 4..7):
 */
 #define	DMA2_CHN(c)	(IO_DMA2 + 2*(2*(c)))	/* addr reg for channel c */
+#define	DMA2_STATUS	(IO_DMA2 + 2*8)		/* status register */
 #define	DMA2_SMSK	(IO_DMA2 + 2*10)	/* single mask register */
 #define	DMA2_MODE	(IO_DMA2 + 2*11)	/* mode register */
 #define	DMA2_FFC	(IO_DMA2 + 2*12)	/* clear first/last FF */
@@ -560,6 +555,16 @@ isa_dmastatus(int chan)
 }
 
 /*
+ * Reached terminal count yet ?
+ */
+int
+isa_dmatc(int chan)
+{
+
+	return(inb(DMA1_STATUS) & (1 << chan));
+}
+
+/*
  * Stop a DMA transfer currently in progress.
  */
 int