[Linux-mips-commits]CVS: linux/include/asm-mips pci.h,1.9,1.10

[Pete P. <pp...@us...>]

Update of /cvsroot/linux-mips/linux/include/asm-mips
In directory usw-pr-cvs1:/tmp/cvs-serv23504/include/asm-mips

Modified Files:
	pci.h 
Log Message:
The purpose of CONFIG_MAPPED_PCI_IO, is to allow a board to have
its own pci_map_* implementation and its own pci-dma.c... useful
when you have broken/stupid hardware.


Index: pci.h
===================================================================
RCS file: /cvsroot/linux-mips/linux/include/asm-mips/pci.h,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -d -r1.9 -r1.10
--- pci.h	26 Feb 2002 19:03:32 -0000	1.9
+++ pci.h	12 Apr 2002 20:50:47 -0000	1.10
@@ -79,6 +79,37 @@
 extern void pci_free_consistent(struct pci_dev *hwdev, size_t size,
 				void *vaddr, dma_addr_t dma_handle);
 
+#ifdef CONFIG_MAPPED_PCI_IO
+
+extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size,
+                                 int direction);
+extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
+                             size_t size, int direction);
+extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents,
+                      int direction);
+extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
+                         int nents, int direction);
+extern void pci_dma_sync_single(struct pci_dev *hwdev, dma_addr_t dma_handle,
+                                size_t size, int direction);
+extern void pci_dma_sync_sg(struct pci_dev *hwdev, struct scatterlist *sg,
+                            int nelems, int direction);
+
+/* pci_unmap_{single,page} is not a nop, thus... */
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)	\
+	dma_addr_t ADDR_NAME;
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)		\
+	__u32 LEN_NAME;
+#define pci_unmap_addr(PTR, ADDR_NAME)			\
+	((PTR)->ADDR_NAME)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)		\
+	(((PTR)->ADDR_NAME) = (VAL))
+#define pci_unmap_len(PTR, LEN_NAME)			\
+	((PTR)->LEN_NAME)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL)		\
+	(((PTR)->LEN_NAME) = (VAL))
+
+#else /* CONFIG_MAPPED_PCI_IO  */
+
 /*
  * Map a single buffer of the indicated size for DMA in streaming mode.
  * The 32-bit bus address to use is returned.
@@ -249,6 +280,9 @@
 		dma_cache_wback_inv((unsigned long)sg->address, sg->length);
 #endif
 }
+
+#endif /* CONFIG_MAPPED_PCI_IO  */
+
 
 /* Return whether the given PCI device DMA address mask can
  * be supported properly.  For example, if your device can