PNP: add pnp_resource_type() internal interface

Given a struct resource, this returns the type (IO, MEM, IRQ, DMA). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
aixiaorenzhe · Jul 16, 2008 · 940e98d · 940e98d
1 parent 87e4acf
commit 940e98d
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diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
@@ -46,6 +46,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res);
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc);
 
 void pnp_init_resource(struct resource *res);
+int pnp_resource_type(struct resource *res);
 
 struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
 					  unsigned int type, unsigned int num);

diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
@@ -499,6 +499,12 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
 #endif
 }
 
+int pnp_resource_type(struct resource *res)
+{
+	return res->flags & (IORESOURCE_IO  | IORESOURCE_MEM |
+			     IORESOURCE_IRQ | IORESOURCE_DMA);
+}
+
 struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
 					  unsigned int type, unsigned int num)
 {