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