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/*
* Copyright (c) 2025 Ian Marco Moffett and L5 engineers
* All rights reserved.
*
* 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 the project 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 OWNER 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.
*/
#ifndef _PCI_CAM_H_
#define _PCI_CAM_H_ 1
#include <sys/types.h>
#include <io/pci/pci.h>
/*
* Configuration Access Mechanism hooks for the
* L5 PCI driver.
*
* Contains read/write hooks:
* [
* @dp: Device pointer
* @off: Register offset
* @v[writel]: Value to write
* ]
*/
struct cam_hook {
void(*cam_writel)(struct pci_device *dp, uint32_t off, pcireg_t v);
pcireg_t(*cam_readl)(struct pci_device *dp, uint32_t off);
};
/*
* Initialize configuration access mechanism hooks
* to be used for PCI device access.
*
* @chp: (E)CAM hooks
*
* Returns zero on success, otherwise a less than zero
* value to indicate failure.
*/
int pci_cam_init(struct cam_hook *chp);
#endif /* !_PCI_CAM_H_ */
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