From 74bd7d093b8e87f35eaf3b14459b96a0e20d1d10 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Wed, 28 Feb 2007 13:09:34 -0800
Subject: [SPARC64]: Fix parport_pc build.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/asm-sparc64/parport.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
(limited to 'include/asm-sparc64/parport.h')
diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h
index d3895873e4c7..be9509c8f8c1 100644
--- a/include/asm-sparc64/parport.h
+++ b/include/asm-sparc64/parport.h
@@ -23,8 +23,30 @@ static struct sparc_ebus_info {
struct ebus_dma_info info;
unsigned int addr;
unsigned int count;
+ int lock;
} sparc_ebus_dmas[PARPORT_PC_MAX_PORTS];
+static __inline__ int request_dma(unsigned int dmanr, const char *device_id)
+{
+ if (dmanr >= PARPORT_PC_MAX_PORTS)
+ return -EINVAL;
+ if (xchg(&sparc_ebus_dmas[dmanr].lock, 1) != 0)
+ return -EBUSY;
+ return 0;
+}
+
+static __inline__ void free_dma(unsigned int dmanr)
+{
+ if (dmanr >= PARPORT_PC_MAX_PORTS) {
+ printk(KERN_WARNING "Trying to free DMA%d\n", dmanr);
+ return;
+ }
+ if (xchg(&sparc_ebus_dmas[dmanr].lock, 0) == 0) {
+ printk(KERN_WARNING "Trying to free free DMA%d\n", dmanr);
+ return;
+ }
+}
+
static __inline__ void enable_dma(unsigned int dmanr)
{
ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 1);
--
cgit