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greybus: connection: send [dis]connected events over control CPort

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The AP needs to send connected and disconnection events to all
interfaces, before a CPort (other than control CPort) can be used.

For now do it which we initialize the connection, but it should be moved
to operations code later.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2015-06-22 16:42:29 +05:30 committed by Greg Kroah-Hartman
parent 87c8eb8d09
commit f18327e8eb
1 changed files with 34 additions and 0 deletions
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34
drivers/staging/greybus/connection.c
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@ -248,6 +248,7 @@ void gb_connection_destroy(struct gb_connection *connection)
int gb_connection_init(struct gb_connection *connection)
{
int cport_id = connection->intf_cport_id;
int ret;
if (!connection->protocol) {
@ -255,6 +256,22 @@ int gb_connection_init(struct gb_connection *connection)
return 0;
}
/*
* Inform Interface about Active CPorts. We don't need to do this
* operation for control cport.
*/
if (cport_id != GB_CONTROL_CPORT_ID) {
struct gb_control *control = connection->bundle->intf->control;
ret = gb_control_connected_operation(control, cport_id);
if (ret) {
dev_warn(&connection->dev,
"Failed to connect CPort-%d (%d)\n",
cport_id, ret);
return 0;
}
}
/* Need to enable the connection to initialize it */
connection->state = GB_CONNECTION_STATE_ENABLED;
ret = connection->protocol->connection_init(connection);
@ -266,6 +283,8 @@ int gb_connection_init(struct gb_connection *connection)
void gb_connection_exit(struct gb_connection *connection)
{
int cport_id = connection->intf_cport_id;
if (!connection->protocol) {
dev_warn(&connection->dev, "exit without protocol.\n");
return;
@ -276,4 +295,19 @@ void gb_connection_exit(struct gb_connection *connection)
connection->state = GB_CONNECTION_STATE_DESTROYING;
connection->protocol->connection_exit(connection);
/*
* Inform Interface about In-active CPorts. We don't need to do this
* operation for control cport.
*/
if (cport_id != GB_CONTROL_CPORT_ID) {
struct gb_control *control = connection->bundle->intf->control;
int ret;
ret = gb_control_disconnected_operation(control, cport_id);
if (ret)
dev_warn(&connection->dev,
"Failed to disconnect CPort-%d (%d)\n",
cport_id, ret);
}
}