diff options
Diffstat (limited to 'drivers/misc/mei/client.h')
| -rw-r--r-- | drivers/misc/mei/client.h | 109 | 
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h new file mode 100644 index 00000000000..96d5de0389f --- /dev/null +++ b/drivers/misc/mei/client.h @@ -0,0 +1,109 @@ +/* + * + * 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_CLIENT_H_ +#define _MEI_CLIENT_H_ + +#include <linux/types.h> +#include <linux/watchdog.h> +#include <linux/poll.h> +#include <linux/mei.h> + +#include "mei_dev.h" + +int mei_me_cl_by_uuid(const struct mei_device *dev, const uuid_le *cuuid); +int mei_me_cl_by_id(struct mei_device *dev, u8 client_id); + +/* + * MEI IO Functions + */ +struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, struct file *fp); +void mei_io_cb_free(struct mei_cl_cb *priv_cb); +int mei_io_cb_alloc_req_buf(struct mei_cl_cb *cb, size_t length); +int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length); + + +/** + * mei_io_list_init - Sets up a queue list. + * + * @list: An instance cl callback structure + */ +static inline void mei_io_list_init(struct mei_cl_cb *list) +{ +	INIT_LIST_HEAD(&list->list); +} +/* + * MEI Host Client Functions + */ + +struct mei_cl *mei_cl_allocate(struct mei_device *dev); +void mei_cl_init(struct mei_cl *cl, struct mei_device *dev); + + +int mei_cl_link(struct mei_cl *cl, int id); +int mei_cl_unlink(struct mei_cl *cl); + +int mei_cl_flush_queues(struct mei_cl *cl); +struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl); + + +int mei_cl_flow_ctrl_creds(struct mei_cl *cl); + +int mei_cl_flow_ctrl_reduce(struct mei_cl *cl); +/* + *  MEI input output function prototype + */ +static inline bool mei_cl_is_connected(struct mei_cl *cl) +{ +	return  cl->dev && +		cl->dev->dev_state == MEI_DEV_ENABLED && +		cl->state == MEI_FILE_CONNECTED; +} +static inline bool mei_cl_is_transitioning(struct mei_cl *cl) +{ +	return  MEI_FILE_INITIALIZING == cl->state || +		MEI_FILE_DISCONNECTED == cl->state || +		MEI_FILE_DISCONNECTING == cl->state; +} + +bool mei_cl_is_other_connecting(struct mei_cl *cl); +int mei_cl_disconnect(struct mei_cl *cl); +int mei_cl_connect(struct mei_cl *cl, struct file *file); +int mei_cl_read_start(struct mei_cl *cl, size_t length); +int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking); +int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb, +		     struct mei_cl_cb *cmpl_list); + +void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb); + +void mei_host_client_init(struct work_struct *work); + + + +void mei_cl_all_disconnect(struct mei_device *dev); +void mei_cl_all_wakeup(struct mei_device *dev); +void mei_cl_all_write_clear(struct mei_device *dev); + +#define MEI_CL_FMT "cl:host=%02d me=%02d " +#define MEI_CL_PRM(cl) (cl)->host_client_id, (cl)->me_client_id + +#define cl_dbg(dev, cl, format, arg...) \ +	dev_dbg(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg) + +#define cl_err(dev, cl, format, arg...) \ +	dev_err(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg) + +#endif /* _MEI_CLIENT_H_ */  | 
