summaryrefslogtreecommitdiff
path: root/arch/m68k/mac/via.c
diff options
context:
space:
mode:
authorFinn Thain <fthain@telegraphics.com.au>2011-10-23 18:11:14 +0400
committerGeert Uytterhoeven <geert@linux-m68k.org>2011-12-10 22:52:46 +0400
commit30c0527d15ce4edcde64581e9d062ba9fb08fe16 (patch)
treeda3e996d43a671d2d66075fdc7676f17c688b415 /arch/m68k/mac/via.c
parent56e63689fd866a865682fe14dc5a7e1ec3b2c3ad (diff)
downloadlinux-30c0527d15ce4edcde64581e9d062ba9fb08fe16.tar.xz
m68k/mac: cleanup mac_irq_pending
mac_irq_pending() has only one caller (mac_esp.c). Nothing tests for Baboon, PSC or OSS pending interrupts. Until that need arises, let's keep it simple and remove all the unused abstraction. Replace it with a routine to check for SCSI DRQ. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/mac/via.c')
-rw-r--r--arch/m68k/mac/via.c28
1 files changed, 6 insertions, 22 deletions
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 1c2bce7506b2..105707aa03a2 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -585,28 +585,6 @@ void via_irq_disable(int irq) {
}
}
-/*
- * Returns nonzero if an interrupt is pending on the given
- * VIA/IRQ combination.
- */
-
-int via_irq_pending(int irq)
-{
- int irq_src = IRQ_SRC(irq);
- int irq_idx = IRQ_IDX(irq);
- int irq_bit = 1 << irq_idx;
-
- if (irq_src == 1) {
- return via1[vIFR] & irq_bit;
- } else if (irq_src == 2) {
- return via2[gIFR] & irq_bit;
- } else if (irq_src == 7) {
- /* Always 0 for MAC_VIA_QUADRA if the slot irq is disabled. */
- return ~via2[gBufA] & irq_bit;
- }
- return 0;
-}
-
void via1_set_head(int head)
{
if (head == 0)
@@ -615,3 +593,9 @@ void via1_set_head(int head)
via1[vBufA] |= VIA1A_vHeadSel;
}
EXPORT_SYMBOL(via1_set_head);
+
+int via2_scsi_drq_pending(void)
+{
+ return via2[gIFR] & (1 << IRQ_IDX(IRQ_MAC_SCSIDRQ));
+}
+EXPORT_SYMBOL(via2_scsi_drq_pending);