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