1 files changed, 122 insertions, 0 deletions
diff --git a/src/ast_pcirename.h b/src/ast_pcirename.h
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+++ b/src/ast_pcirename.h
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+/*
+ * Copyright 2007 George Sapountzis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * Macros for porting drivers from legacy xfree86 PCI code to the pciaccess
+ * library. The main purpose being to facilitate source code compatibility.
+ */
+
+#ifndef ASTPCIRENAME_H
+#define ASTPCIRENAME_H
+
+enum region_type {
+    REGION_MEM,
+    REGION_IO 
+};
+
+#ifndef XSERVER_LIBPCIACCESS
+
+/* pciVideoPtr */
+#define PCI_DEV_VENDOR_ID(_pcidev) ((_pcidev)->vendor)
+#define PCI_DEV_DEVICE_ID(_pcidev) ((_pcidev)->chipType)
+#define PCI_DEV_REVISION(_pcidev)  ((_pcidev)->chipRev)
+
+#define PCI_SUB_VENDOR_ID(_pcidev) ((_pcidev)->subsysVendor)
+#define PCI_SUB_DEVICE_ID(_pcidev) ((_pcidev)->subsysCard)
+
+#define PCI_DEV_TAG(_pcidev) pciTag((_pcidev)->bus,    \
+                                    (_pcidev)->device, \
+                                    (_pcidev)->func)
+#define PCI_DEV_BUS(_pcidev)       ((_pcidev)->bus)
+#define PCI_DEV_DEV(_pcidev)       ((_pcidev)->device)
+#define PCI_DEV_FUNC(_pcidev)      ((_pcidev)->func)
+
+/* pciConfigPtr */
+#define PCI_CFG_TAG(_pcidev)  (((pciConfigPtr)(_pcidev)->thisCard)->tag)
+#define PCI_CFG_BUS(_pcidev)  (((pciConfigPtr)(_pcidev)->thisCard)->busnum)
+#define PCI_CFG_DEV(_pcidev)  (((pciConfigPtr)(_pcidev)->thisCard)->devnum)
+#define PCI_CFG_FUNC(_pcidev) (((pciConfigPtr)(_pcidev)->thisCard)->funcnum)
+
+/* region addr: xfree86 uses different fields for memory regions and I/O ports */
+#define PCI_REGION_BASE(_pcidev, _b, _type)             \
+    (((_type) == REGION_MEM) ? (_pcidev)->memBase[(_b)] \
+                             : (_pcidev)->ioBase[(_b)])
+
+/* region size: xfree86 uses the log2 of the region size,
+ * but with zero meaning no region, not size of one XXX */
+#define PCI_REGION_SIZE(_pcidev, _b) \
+    (((_pcidev)->size[(_b)] > 0) ? (1 << (_pcidev)->size[(_b)]) : 0)
+
+/* read/write PCI configuration space */
+#define PCI_READ_BYTE(_pcidev, _value_ptr, _offset) \
+    *(_value_ptr) = pciReadByte(PCI_CFG_TAG(_pcidev), (_offset))
+
+#define PCI_READ_LONG(_pcidev, _value_ptr, _offset) \
+    *(_value_ptr) = pciReadLong(PCI_CFG_TAG(_pcidev), (_offset))
+
+#define PCI_WRITE_LONG(_pcidev, _value, _offset) \
+    pciWriteLong(PCI_CFG_TAG(_pcidev), (_offset), (_value))
+
+#else /* XSERVER_LIBPCIACCESS */
+
+typedef struct pci_device *pciVideoPtr;
+
+#define PCI_DEV_VENDOR_ID(_pcidev) ((_pcidev)->vendor_id)
+#define PCI_DEV_DEVICE_ID(_pcidev) ((_pcidev)->device_id)
+#define PCI_DEV_REVISION(_pcidev)  ((_pcidev)->revision)
+
+#define PCI_SUB_VENDOR_ID(_pcidev) ((_pcidev)->subvendor_id)
+#define PCI_SUB_DEVICE_ID(_pcidev) ((_pcidev)->subdevice_id)
+
+/* pci-rework functions take a 'pci_device' parameter instead of a tag */
+#define PCI_DEV_TAG(_pcidev)        (_pcidev)
+
+/* PCI_DEV macros, typically used in printf's, add domain ? XXX */
+#define PCI_DEV_BUS(_pcidev)       ((_pcidev)->bus)
+#define PCI_DEV_DEV(_pcidev)       ((_pcidev)->dev)
+#define PCI_DEV_FUNC(_pcidev)      ((_pcidev)->func)
+
+/* pci-rework functions take a 'pci_device' parameter instead of a tag */
+#define PCI_CFG_TAG(_pcidev)        (_pcidev)
+
+/* PCI_CFG macros, typically used in DRI init, contain the domain */
+#define PCI_CFG_BUS(_pcidev)      (((_pcidev)->domain << 8) | \
+                                    (_pcidev)->bus)
+#define PCI_CFG_DEV(_pcidev)       ((_pcidev)->dev)
+#define PCI_CFG_FUNC(_pcidev)      ((_pcidev)->func)
+
+#define PCI_REGION_BASE(_pcidev, _b, _type) ((_pcidev)->regions[(_b)].base_addr)
+#define PCI_REGION_SIZE(_pcidev, _b)        ((_pcidev)->regions[(_b)].size)
+
+#define PCI_READ_BYTE(_pcidev, _value_ptr, _offset) \
+    pci_device_cfg_read_u8((_pcidev), (_value_ptr), (_offset))
+
+#define PCI_READ_LONG(_pcidev, _value_ptr, _offset) \
+    pci_device_cfg_read_u32((_pcidev), (_value_ptr), (_offset))
+
+#define PCI_WRITE_LONG(_pcidev, _value, _offset) \
+    pci_device_cfg_write_u32((_pcidev), (_value), (_offset))
+
+#endif /* XSERVER_LIBPCIACCESS */
+
+#endif /* CIRPCIRENAME_H */