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greybus: connection: add control connection flag 

Add control connection flag which will be set for control connections.

Also add a helper function to test if the flag is set.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2016-05-27 17:26:25 +02:00 committed by Greg Kroah-Hartman
parent d9fa3494b7
commit aca7aab39a
2 changed files with 14 additions and 7 deletions
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15
drivers/staging/greybus/connection.c
View File

@ -227,7 +227,8 @@ gb_connection_create_static(struct gb_host_device *hd, u16 hd_cport_id,
struct gb_connection *
gb_connection_create_control(struct gb_interface *intf)
{
return _gb_connection_create(intf->hd, -1, intf, NULL, 0, NULL, 0);
return _gb_connection_create(intf->hd, -1, intf, NULL, 0, NULL,
GB_CONNECTION_FLAG_CONTROL);
}
struct gb_connection *
@ -412,11 +413,11 @@ static int gb_connection_control_connected(struct gb_connection *connection)
return 0;
}
control = connection->intf->control;
if (connection == control->connection)
if (gb_connection_is_control(connection))
return 0;
control = connection->intf->control;
ret = gb_control_connected_operation(control, cport_id);
if (ret) {
dev_err(&connection->bundle->dev,
@ -438,11 +439,11 @@ gb_connection_control_disconnected(struct gb_connection *connection)
if (gb_connection_is_static(connection))
return;
control = connection->intf->control;
if (connection == control->connection)
if (gb_connection_is_control(connection))
return;
control = connection->intf->control;
ret = gb_control_disconnected_operation(control, cport_id);
if (ret) {
dev_warn(&connection->bundle->dev,

6
drivers/staging/greybus/connection.h
View File

@ -17,6 +17,7 @@
#define GB_CONNECTION_FLAG_NO_FLOWCTRL BIT(1)
#define GB_CONNECTION_FLAG_OFFLOADED BIT(2)
#define GB_CONNECTION_FLAG_CDSI1 BIT(3)
#define GB_CONNECTION_FLAG_CONTROL BIT(4)
enum gb_connection_state {
GB_CONNECTION_STATE_INVALID = 0,
@ -104,6 +105,11 @@ static inline bool gb_connection_is_offloaded(struct gb_connection *connection)
return connection->flags & GB_CONNECTION_FLAG_OFFLOADED;
}
static inline bool gb_connection_is_control(struct gb_connection *connection)
{
return connection->flags & GB_CONNECTION_FLAG_CONTROL;
}
static inline void *gb_connection_get_data(struct gb_connection *connection)
{
return connection->private;