staging: comedi: adl_pci6208: document the register map of the device
Add defines for the register map of the device. These will be
used to clarify the code.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index f949d20..b6a8439 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -53,6 +53,18 @@
*/
#include "../comedidev.h"
+/*
+ * PCI-6208/6216-GL register map
+ */
+#define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
+#define PCI6208_AO_STATUS 0x00
+#define PCI6208_AO_STATUS_DATA_SEND (1 << 0)
+#define PCI6208_DIO 0x40
+#define PCI6208_DIO_DO_MASK (0x0f)
+#define PCI6208_DIO_DO_SHIFT (0)
+#define PCI6208_DIO_DI_MASK (0xf0)
+#define PCI6208_DIO_DI_SHIFT (4)
+
/* Board descriptions */
struct pci6208_board {
const char *name;