staging: comedi: addi_apci_3120: define the AI FIFO register

Define the offset for the analog input FIFO register.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c

@@ -43,8 +43,6 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 #define APCI3120_START			1
 #define APCI3120_STOP			0
 
-#define APCI3120_RD_FIFO		0x00
-
 /* software trigger dummy register */
 #define APCI3120_START_CONVERSION	0x02
 
@@ -408,7 +406,7 @@ static irqreturn_t apci3120_interrupt(int irq, void *d)
 		int i;
 
 		for (i = 0; i < cmd->chanlist_len; i++) {
-			val = inw(dev->iobase + 0);
+			val = inw(dev->iobase + APCI3120_AI_FIFO_REG);
 			comedi_buf_write_samples(s, &val, 1);
 		}
 

drivers/staging/comedi/drivers/addi_apci_3120.c

@@ -16,6 +16,7 @@
 /*
  * PCI BAR 1 register map (dev->iobase)
  */
+#define APCI3120_AI_FIFO_REG			0x00
 #define APCI3120_CTRL_REG			0x00
 #define APCI3120_CTRL_EXT_TRIG			(1 << 15)
 #define APCI3120_CTRL_GATE(x)			(1 << (12 + (x)))
@@ -370,7 +371,7 @@ static int apci3120_ai_insn_read(struct comedi_device *dev,
 		if (ret)
 			return ret;
 
-		data[i] = inw(dev->iobase + 0);
+		data[i] = inw(dev->iobase + APCI3120_AI_FIFO_REG);
 	}
 
 	return insn->n;