120 строки
3.7 KiB
C
120 строки
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2013-2016, Intel Corporation. All rights reserved.
|
|
*/
|
|
#ifndef _LINUX_MEI_CL_BUS_H
|
|
#define _LINUX_MEI_CL_BUS_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/uuid.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
struct mei_cl_device;
|
|
struct mei_device;
|
|
|
|
typedef void (*mei_cldev_cb_t)(struct mei_cl_device *cldev);
|
|
|
|
/**
|
|
* struct mei_cl_device - MEI device handle
|
|
* An mei_cl_device pointer is returned from mei_add_device()
|
|
* and links MEI bus clients to their actual ME host client pointer.
|
|
* Drivers for MEI devices will get an mei_cl_device pointer
|
|
* when being probed and shall use it for doing ME bus I/O.
|
|
*
|
|
* @bus_list: device on the bus list
|
|
* @bus: parent mei device
|
|
* @dev: linux driver model device pointer
|
|
* @me_cl: me client
|
|
* @cl: mei client
|
|
* @name: device name
|
|
* @rx_work: async work to execute Rx event callback
|
|
* @rx_cb: Drivers register this callback to get asynchronous ME
|
|
* Rx buffer pending notifications.
|
|
* @notif_work: async work to execute FW notif event callback
|
|
* @notif_cb: Drivers register this callback to get asynchronous ME
|
|
* FW notification pending notifications.
|
|
*
|
|
* @do_match: wheather device can be matched with a driver
|
|
* @is_added: device is already scanned
|
|
* @priv_data: client private data
|
|
*/
|
|
struct mei_cl_device {
|
|
struct list_head bus_list;
|
|
struct mei_device *bus;
|
|
struct device dev;
|
|
|
|
struct mei_me_client *me_cl;
|
|
struct mei_cl *cl;
|
|
char name[MEI_CL_NAME_SIZE];
|
|
|
|
struct work_struct rx_work;
|
|
mei_cldev_cb_t rx_cb;
|
|
struct work_struct notif_work;
|
|
mei_cldev_cb_t notif_cb;
|
|
|
|
unsigned int do_match:1;
|
|
unsigned int is_added:1;
|
|
|
|
void *priv_data;
|
|
};
|
|
|
|
#define to_mei_cl_device(d) container_of(d, struct mei_cl_device, dev)
|
|
|
|
struct mei_cl_driver {
|
|
struct device_driver driver;
|
|
const char *name;
|
|
|
|
const struct mei_cl_device_id *id_table;
|
|
|
|
int (*probe)(struct mei_cl_device *cldev,
|
|
const struct mei_cl_device_id *id);
|
|
void (*remove)(struct mei_cl_device *cldev);
|
|
};
|
|
|
|
int __mei_cldev_driver_register(struct mei_cl_driver *cldrv,
|
|
struct module *owner);
|
|
#define mei_cldev_driver_register(cldrv) \
|
|
__mei_cldev_driver_register(cldrv, THIS_MODULE)
|
|
|
|
void mei_cldev_driver_unregister(struct mei_cl_driver *cldrv);
|
|
|
|
/**
|
|
* module_mei_cl_driver - Helper macro for registering mei cl driver
|
|
*
|
|
* @__mei_cldrv: mei_cl_driver structure
|
|
*
|
|
* Helper macro for mei cl drivers which do not do anything special in module
|
|
* init/exit, for eliminating a boilerplate code.
|
|
*/
|
|
#define module_mei_cl_driver(__mei_cldrv) \
|
|
module_driver(__mei_cldrv, \
|
|
mei_cldev_driver_register,\
|
|
mei_cldev_driver_unregister)
|
|
|
|
ssize_t mei_cldev_send(struct mei_cl_device *cldev, u8 *buf, size_t length);
|
|
ssize_t mei_cldev_recv(struct mei_cl_device *cldev, u8 *buf, size_t length);
|
|
ssize_t mei_cldev_recv_nonblock(struct mei_cl_device *cldev, u8 *buf,
|
|
size_t length);
|
|
ssize_t mei_cldev_send_vtag(struct mei_cl_device *cldev, u8 *buf, size_t length,
|
|
u8 vtag);
|
|
ssize_t mei_cldev_recv_vtag(struct mei_cl_device *cldev, u8 *buf, size_t length,
|
|
u8 *vtag);
|
|
ssize_t mei_cldev_recv_nonblock_vtag(struct mei_cl_device *cldev, u8 *buf,
|
|
size_t length, u8 *vtag);
|
|
|
|
int mei_cldev_register_rx_cb(struct mei_cl_device *cldev, mei_cldev_cb_t rx_cb);
|
|
int mei_cldev_register_notif_cb(struct mei_cl_device *cldev,
|
|
mei_cldev_cb_t notif_cb);
|
|
|
|
const uuid_le *mei_cldev_uuid(const struct mei_cl_device *cldev);
|
|
u8 mei_cldev_ver(const struct mei_cl_device *cldev);
|
|
|
|
void *mei_cldev_get_drvdata(const struct mei_cl_device *cldev);
|
|
void mei_cldev_set_drvdata(struct mei_cl_device *cldev, void *data);
|
|
|
|
int mei_cldev_enable(struct mei_cl_device *cldev);
|
|
int mei_cldev_disable(struct mei_cl_device *cldev);
|
|
bool mei_cldev_enabled(struct mei_cl_device *cldev);
|
|
|
|
#endif /* _LINUX_MEI_CL_BUS_H */
|