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https://github.com/zephyrproject-rtos/zephyr
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ff3f81b44c
This will make code that use it not too crowded with #ifdef #endif Change-Id: Iec0fa662445b1cefdc7c64d9483e1ae483106a90 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/* pci.h - PCI probe and information routines */
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/*
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* Copyright (c) 2013-2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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Module declares routines of PCI bus initialization and query
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*/
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#ifndef _PCI_H_
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#define _PCI_H_
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#define BAR_SPACE_MEM 0
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#define BAR_SPACE_IO 1
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#define PCI_MAX_FUNCTIONS 8
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#define PCI_FUNCTION_ANY PCI_MAX_FUNCTIONS
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#define PCI_MAX_BARS 6
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#define PCI_BAR_ANY PCI_MAX_BARS
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/* PCI device information */
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struct pci_dev_info {
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uint32_t addr; /* I/O or memory region address */
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uint32_t size; /* memory region size */
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int irq;
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uint32_t bus:8;
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uint32_t dev:5;
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uint32_t function:4;
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uint32_t mem_type:1; /* memory type: BAR_SPACE_MEM/BAR_SPACE_IO */
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uint32_t class:8;
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uint32_t bar:3;
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uint32_t _reserved:3;
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uint16_t vendor_id;
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uint16_t device_id;
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};
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#ifdef CONFIG_PCI_ENUMERATION
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extern void pci_bus_scan_init(void);
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extern int pci_bus_scan(struct pci_dev_info *dev_info);
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#else
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#define pci_bus_scan_init(void) {;}
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static inline int pci_bus_scan(struct pci_dev_info *dev_info)
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{
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return 1;
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}
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#endif /* CONFIG_PCI_ENUMERATION */
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void pci_enable_regs(struct pci_dev_info *dev_info);
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#ifdef CONFIG_PCI_DEBUG
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extern void pci_show(struct pci_dev_info *dev_info);
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#else
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#define pci_show(__unused__) {;}
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#endif
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#endif /* _PCI_H_ */
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