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/*
*
* Intel Management Engine Interface (Intel MEI) Linux driver
* Copyright (c) 2003-2012, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*/
#ifndef _MEI_INTERFACE_H_
#define _MEI_INTERFACE_H_
#include <linux/mei.h>
#include "mei_dev.h"
#include "client.h"
struct mei_me_hw {
void __iomem *mem_addr;
/*
* hw states of host and fw(ME)
*/
u32 host_hw_state;
u32 me_hw_state;
};
#define to_me_hw(dev) (struct mei_me_hw *)((dev)->hw)
struct mei_device *mei_me_dev_init(struct pci_dev *pdev);
void mei_read_slots(struct mei_device *dev,
unsigned char *buffer,
unsigned long buffer_length);
int mei_write_message(struct mei_device *dev,
struct mei_msg_hdr *header,
unsigned char *buf);
bool mei_hbuf_is_empty(struct mei_device *dev);
int mei_hbuf_empty_slots(struct mei_device *dev);
static inline size_t mei_hbuf_max_data(const struct mei_device *dev)
{
return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
}
/* get slots (dwords) from a message length + header (bytes) */
static inline unsigned char mei_data2slots(size_t length)
{
return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
}
int mei_count_full_read_slots(struct mei_device *dev);
#endif /* _MEI_INTERFACE_H_ */
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