LIBPCI: added PCI layer to cpukit/libpci

cpukit/libpci/pci_access_io.c

@@ -0,0 +1,48 @@
+/*  PCI Access Library
+ *
+ *  COPYRIGHT (c) 2010.
+ *  Cobham Gaisler AB.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ */
+
+#include <pci.h>
+#include <pci/access.h>
+
+/* Read a 8-bit register over PCI I/O Space */
+uint8_t pci_io_r8(uint32_t adr)
+{
+	return pci_access_ops.io.read8((uint8_t *)adr);
+}
+
+/* Read a 16-bit I/O Register */
+uint16_t pci_io_r16(uint32_t adr)
+{
+	return pci_access_ops.io.read16((uint16_t *)adr);
+}
+
+/* Read a 32-bit I/O Register */
+uint32_t pci_io_r32(uint32_t adr)
+{
+	return pci_access_ops.io.read32((uint32_t *)adr);
+}
+
+/* Write a 8-bit I/O Register */
+void pci_io_w8(uint32_t adr, uint8_t data)
+{
+	pci_access_ops.io.write8((uint8_t *)adr, data);
+}
+
+/* Write a 16-bit I/O Register */
+void pci_io_w16(uint32_t adr, uint16_t data)
+{
+	pci_access_ops.io.write16((uint16_t *)adr, data);
+}
+
+/* Write a 32-bit I/O Register */
+void pci_io_w32(uint32_t adr, uint32_t data)
+{
+	pci_access_ops.io.write32((uint32_t *)adr, data);
+}