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/* FSI device & driver interfaces
*
* Copyright (C) IBM Corporation 2016
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that 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 LINUX_FSI_H
#define LINUX_FSI_H
#include <linux/device.h>
struct fsi_device {
struct device dev;
u8 engine_type;
u8 version;
u8 unit;
struct fsi_slave *slave;
uint32_t addr;
uint32_t size;
};
extern int fsi_device_read(struct fsi_device *dev, uint32_t addr,
void *val, size_t size);
extern int fsi_device_write(struct fsi_device *dev, uint32_t addr,
const void *val, size_t size);
extern int fsi_device_peek(struct fsi_device *dev, void *val);
struct fsi_device_id {
u8 engine_type;
u8 version;
};
#define FSI_VERSION_ANY 0
#define FSI_DEVICE(t) \
.engine_type = (t), .version = FSI_VERSION_ANY,
#define FSI_DEVICE_VERSIONED(t, v) \
.engine_type = (t), .version = (v),
struct fsi_driver {
struct device_driver drv;
const struct fsi_device_id *id_table;
};
#define to_fsi_dev(devp) container_of(devp, struct fsi_device, dev)
#define to_fsi_drv(drvp) container_of(drvp, struct fsi_driver, drv)
extern struct bus_type fsi_bus_type;
#endif /* LINUX_FSI_H */
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