/*
* (C) Copyright IBM Corporation 2006
+ * Copyright 2009 Red Hat, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
+/*
+ * Copyright (c) 2007 Paulo R. Zanoni, Tiago Vignatti
+ *
+ * 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 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.
+ *
+ */
/**
* \file pciaccess.h
- *
+ *
* \author Ian Romanick <idr@us.ibm.com>
*/
#if __GNUC__ >= 3
#define __deprecated __attribute__((deprecated))
#else
-#define __deprecated
+#define __deprecated
#endif
typedef uint64_t pciaddr_t;
struct pci_id_match;
struct pci_slot_match;
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int pci_device_has_kernel_driver(struct pci_device *dev);
+
+int pci_device_is_boot_vga(struct pci_device *dev);
+
int pci_device_read_rom(struct pci_device *dev, void *buffer);
int __deprecated pci_device_map_region(struct pci_device *dev,
struct pci_device *pci_device_find_by_slot(uint32_t domain, uint32_t bus,
uint32_t dev, uint32_t func);
+struct pci_device *pci_device_get_parent_bridge(struct pci_device *dev);
+
void pci_get_strings(const struct pci_id_match *m,
const char **device_name, const char **vendor_name,
const char **subdevice_name, const char **subvendor_name);
const char *pci_device_get_vendor_name(const struct pci_device *dev);
const char *pci_device_get_subvendor_name(const struct pci_device *dev);
+void pci_device_enable(struct pci_device *dev);
+
int pci_device_cfg_read (struct pci_device *dev, void *data,
pciaddr_t offset, pciaddr_t size, pciaddr_t *bytes_read);
int pci_device_cfg_read_u8 (struct pci_device *dev, uint8_t *data,
int pci_device_cfg_write_bits(struct pci_device *dev, uint32_t mask,
uint32_t data, pciaddr_t offset);
+#ifdef __cplusplus
+}
+#endif
+
/**
* \name Mapping flags passed to \c pci_device_map_range
*/
struct pci_id_match {
/**
* \name Device / vendor matching controls
- *
+ *
* Control the search based on the device, vendor, subdevice, or subvendor
* IDs. Setting any of these fields to \c PCI_MATCH_ANY will cause the
* field to not be used in the comparison.
/**
* \name Device class matching controls
- *
+ *
*/
/*@{*/
uint32_t device_class;
* This address is really only useful to other devices in the same
* domain. It's probably \b not the address applications will ever
* use.
- *
+ *
* \warning
* Most (all?) platform back-ends leave this field unset.
*/
/**
* Base physical address of the region from the CPU's point of view.
- *
+ *
* This address is typically passed to \c pci_device_map_range to create
* a mapping of the region to the CPU's virtual address space.
*/
* the \c pci_device structure.
*/
intptr_t user_data;
+
+ /**
+ * Used by the VGA arbiter. Type of resource decoded by the device and
+ * the file descriptor (/dev/vga_arbiter). */
+ int vgaarb_rsrc;
};
uint8_t card_bus;
uint8_t subordinate_bus;
uint8_t cardbus_latency_timer;
-
+
uint16_t secondary_status;
uint16_t bridge_control;
};
+
+/**
+ * VGA Arbiter definitions, functions and related.
+ */
+
+/* Legacy VGA regions */
+#define VGA_ARB_RSRC_NONE 0x00
+#define VGA_ARB_RSRC_LEGACY_IO 0x01
+#define VGA_ARB_RSRC_LEGACY_MEM 0x02
+/* Non-legacy access */
+#define VGA_ARB_RSRC_NORMAL_IO 0x04
+#define VGA_ARB_RSRC_NORMAL_MEM 0x08
+
+int pci_device_vgaarb_init (void);
+void pci_device_vgaarb_fini (void);
+int pci_device_vgaarb_set_target (struct pci_device *dev);
+/* use the targetted device */
+int pci_device_vgaarb_decodes (int new_vga_rsrc);
+int pci_device_vgaarb_lock (void);
+int pci_device_vgaarb_trylock (void);
+int pci_device_vgaarb_unlock (void);
+/* return the current device count + resource decodes for the device */
+int pci_device_vgaarb_get_info (struct pci_device *dev, int *vga_count, int *rsrc_decodes);
+
+/*
+ * I/O space access.
+ */
+
+struct pci_io_handle;
+
+struct pci_io_handle *pci_device_open_io(struct pci_device *dev, pciaddr_t base,
+ pciaddr_t size);
+struct pci_io_handle *pci_legacy_open_io(struct pci_device *dev, pciaddr_t base,
+ pciaddr_t size);
+void pci_device_close_io(struct pci_device *dev, struct pci_io_handle *handle);
+uint32_t pci_io_read32(struct pci_io_handle *handle, uint32_t reg);
+uint16_t pci_io_read16(struct pci_io_handle *handle, uint32_t reg);
+uint8_t pci_io_read8(struct pci_io_handle *handle, uint32_t reg);
+void pci_io_write32(struct pci_io_handle *handle, uint32_t reg, uint32_t data);
+void pci_io_write16(struct pci_io_handle *handle, uint32_t reg, uint16_t data);
+void pci_io_write8(struct pci_io_handle *handle, uint32_t reg, uint8_t data);
+
+/*
+ * Legacy memory access
+ */
+
+int pci_device_map_legacy(struct pci_device *dev, pciaddr_t base,
+ pciaddr_t size, unsigned map_flags, void **addr);
+int pci_device_unmap_legacy(struct pci_device *dev, void *addr, pciaddr_t size);
+
#endif /* PCIACCESS_H */
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