staging: comedi: addi_apci_3120: move apci3120_interrupt() to driver

Move this function from the included source file to the main driver
source file.

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>

1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c
index fd5306efc021..fce177bd2db2 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3120.c
@@ -437,6 +437,78 @@ static void apci3120_set_chanlist(struct comedi_device *dev,
 
 #include "addi-data/hwdrv_apci3120.c"
 
+static irqreturn_t apci3120_interrupt(int irq, void *d)
+{
+	struct comedi_device *dev = d;
+	struct apci3120_private *devpriv = dev->private;
+	struct comedi_subdevice *s = dev->read_subdev;
+	struct comedi_async *async = s->async;
+	struct comedi_cmd *cmd = &async->cmd;
+	unsigned int status;
+	unsigned int int_amcc;
+
+	status = inw(dev->iobase + APCI3120_STATUS_REG);
+	int_amcc = inl(devpriv->amcc + AMCC_OP_REG_INTCSR);
+
+	if (!(status & APCI3120_STATUS_INT_MASK) &&
+	    !(int_amcc & ANY_S593X_INT)) {
+		dev_err(dev->class_dev, "IRQ from unknown source\n");
+		return IRQ_NONE;
+	}
+
+	outl(int_amcc | AINT_INT_MASK, devpriv->amcc + AMCC_OP_REG_INTCSR);
+
+	if (devpriv->ctrl & APCI3120_CTRL_EXT_TRIG)
+		apci3120_exttrig_enable(dev, false);
+
+	if (int_amcc & MASTER_ABORT_INT)
+		dev_err(dev->class_dev, "AMCC IRQ - MASTER DMA ABORT!\n");
+	if (int_amcc & TARGET_ABORT_INT)
+		dev_err(dev->class_dev, "AMCC IRQ - TARGET DMA ABORT!\n");
+
+	if ((status & APCI3120_STATUS_EOC_INT) == 0 &&
+	    (devpriv->mode & APCI3120_MODE_EOC_IRQ_ENA)) {
+		/* nothing to do... EOC mode is not currently used */
+	}
+
+	if ((status & APCI3120_STATUS_EOS_INT) &&
+	    (devpriv->mode & APCI3120_MODE_EOS_IRQ_ENA)) {
+		unsigned short val;
+		int i;
+
+		for (i = 0; i < cmd->chanlist_len; i++) {
+			val = inw(dev->iobase + APCI3120_AI_FIFO_REG);
+			comedi_buf_write_samples(s, &val, 1);
+		}
+
+		devpriv->mode |= APCI3120_MODE_EOS_IRQ_ENA;
+		outb(devpriv->mode, dev->iobase + APCI3120_MODE_REG);
+	}
+
+	if (status & APCI3120_STATUS_TIMER2_INT) {
+		/*
+		 * for safety...
+		 * timer2 interrupts are not enabled in the driver
+		 */
+		apci3120_clr_timer2_interrupt(dev);
+	}
+
+	if (status & APCI3120_STATUS_AMCC_INT) {
+		/* AMCC- Clear write complete interrupt (DMA) */
+		outl(AINT_WT_COMPLETE, devpriv->amcc + AMCC_OP_REG_INTCSR);
+
+		/* do some data transfer */
+		apci3120_interrupt_dma(irq, d);
+	}
+
+	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
+		async->events |= COMEDI_CB_EOA;
+
+	comedi_handle_events(dev, s);
+
+	return IRQ_HANDLED;
+}
+
 static int apci3120_ai_cmd(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {