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/*
* Greybus Host Device
*
* Copyright 2014-2015 Google Inc.
* Copyright 2014-2015 Linaro Ltd.
*
* Released under the GPLv2 only.
*/
#ifndef __HD_H
#define __HD_H
struct greybus_host_device;
struct gb_message;
/* Greybus "Host driver" structure, needed by a host controller driver to be
* able to handle both SVC control as well as "real" greybus messages
*/
struct greybus_host_driver {
size_t hd_priv_size;
int (*cport_enable)(struct greybus_host_device *hd, u16 cport_id);
int (*cport_disable)(struct greybus_host_device *hd, u16 cport_id);
int (*message_send)(struct greybus_host_device *hd, u16 dest_cport_id,
struct gb_message *message, gfp_t gfp_mask);
void (*message_cancel)(struct gb_message *message);
int (*latency_tag_enable)(struct greybus_host_device *hd, u16 cport_id);
int (*latency_tag_disable)(struct greybus_host_device *hd,
u16 cport_id);
};
struct greybus_host_device {
struct kref kref;
struct device *parent;
const struct greybus_host_driver *driver;
struct list_head interfaces;
struct list_head connections;
struct ida cport_id_map;
/* Number of CPorts supported by the UniPro IP */
size_t num_cports;
/* Host device buffer constraints */
size_t buffer_size_max;
struct gb_endo *endo;
struct gb_connection *initial_svc_connection;
struct gb_svc *svc;
/* Private data for the host driver */
unsigned long hd_priv[0] __aligned(sizeof(s64));
};
struct greybus_host_device *greybus_create_hd(struct greybus_host_driver *hd,
struct device *parent,
size_t buffer_size_max,
size_t num_cports);
void greybus_remove_hd(struct greybus_host_device *hd);
#endif /* __HD_H */
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