fb69cb506c
When adding a new protocol to the system, walk all bundles and try to hook up any connections that do not have a protocol already. This sets the stage to allow for protocols to be loaded at any time, not just before the device is seen in the system. Reviewed-by: Alex Elder <elder@linaro.org> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* Greybus connections
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*
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* Copyright 2014 Google Inc.
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* Copyright 2014 Linaro Ltd.
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*
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* Released under the GPLv2 only.
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*/
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#ifndef __CONNECTION_H
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#define __CONNECTION_H
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#include <linux/list.h>
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#include "greybus.h"
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enum gb_connection_state {
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GB_CONNECTION_STATE_INVALID = 0,
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GB_CONNECTION_STATE_DISABLED = 1,
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GB_CONNECTION_STATE_ENABLED = 2,
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GB_CONNECTION_STATE_ERROR = 3,
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GB_CONNECTION_STATE_DESTROYING = 4,
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};
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struct gb_connection {
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struct greybus_host_device *hd;
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struct gb_bundle *bundle;
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struct device dev;
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u16 hd_cport_id;
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u16 bundle_cport_id;
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struct list_head hd_links;
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struct list_head bundle_links;
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struct gb_protocol *protocol;
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u8 protocol_id;
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u8 major;
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u8 minor;
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enum gb_connection_state state;
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atomic_t op_cycle;
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struct list_head operations;
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void *private;
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};
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#define to_gb_connection(d) container_of(d, struct gb_connection, dev)
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struct gb_connection *gb_connection_create(struct gb_bundle *bundle,
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u16 cport_id, u8 protocol_id);
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void gb_connection_destroy(struct gb_connection *connection);
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int gb_connection_init(struct gb_connection *connection);
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void gb_connection_exit(struct gb_connection *connection);
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struct gb_connection *gb_hd_connection_find(struct greybus_host_device *hd,
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u16 cport_id);
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void greybus_data_rcvd(struct greybus_host_device *hd, u16 cport_id,
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u8 *data, size_t length);
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__printf(2, 3)
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void gb_connection_err(struct gb_connection *connection, const char *fmt, ...);
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void gb_connection_bind_protocol(struct gb_connection *connection);
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#endif /* __CONNECTION_H */
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