first and last commit

drivers/pci/pci_private.h

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+#ifndef PCI_PRIVATE_H
+#define PCI_PRIVATE_H
+
+#include <drivers/pci.h>
+
+struct pci_device {
+	char name[16];
+	uint32_t refcount;
+
+	// This device's number on its bus
+	uint8_t device_num;
+
+	// Cached copies of config space registers
+	uint16_t vendor_id;
+	uint16_t device_id;
+	uint32_t class_code;
+	uint8_t revision_id;
+	uint8_t header_type;
+	bool multifunction;
+
+	// cached copied of pcie-specific registers
+	uint8_t pcie_device_port_type; // from PCIe r3 7.8.2
+
+	// Populated in pci_bridge_probe by probing the BARs
+	uint8_t num_bars;
+	uint64_t bar_size[6];
+	bool bar_64bit[6];
+	uint64_t bar_pci_addr[6];
+	uintptr_t bar_host_addr[6];
+
+	uint16_t first_cap_offset;
+	uint16_t pcie_cap_offset;
+	uint16_t pm_cap_offset;
+
+	// The bridge upstream from this device, NULL for the host bridge
+	pci_device_t bridge;
+
+	////////// bridge-specific stuff
+	// Provided by the platform driver to support config reads/writes
+	pci_config_read_cb_t config_read;
+	pci_config_write_cb_t config_write;
+	void *bridge_priv;
+
+	// Caches of the bridge numbering config space registers. For host bridges,
+	// primary_bus is ignored and secondary/subordinate_bus just track which
+	// bus numbers have been vended (since host bridges don't have config space)
+	uint8_t primary_bus;
+	uint8_t secondary_bus;
+	uint8_t subordinate_bus;
+
+	// Tracks 32-bit memory space allocations. For now the driver will just support
+	// 32-bit addresses. 64-bit addresses would be tracked in a separate range, so
+	// making the type 32-bit is safe
+	uint32_t memory_base;
+	uint32_t memory_size;
+	uint32_t memory_allocated;
+
+	// Keep track of any devices on this bridge's bus
+	struct pci_device *devices[32];
+	// And of how many we've allocated
+	uint32_t num_children;
+};
+
+
+#endif

drivers/pci/rules.mk

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+# Copyright (C) 2008 Apple Computer, Inc. All rights reserved.
+#
+# This document is the property of Apple Computer, Inc.
+# It is considered confidential and proprietary.
+#
+# This document may not be reproduced or transmitted in any form,
+# in whole or in part, without the express written permission of
+# Apple Computer, Inc.
+#
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+OPTIONS += \
+	WITH_PCI=1
+
+ALL_OBJS += \
+	$(LOCAL_DIR)/pci.o