Commit 007f9792 authored by Viresh Kumar's avatar Viresh Kumar Committed by Greg Kroah-Hartman
Browse files

greybus: connection: Create gb_connection_create_range() to specify hd-cport-id range 



We need to allocate specific hd-cport-id for AP's control/svc protocols.
Support that by splitting functionality of gb_connection_create() into a
new routine, which takes range of hd_cport_id's to allocate from.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent e602df65

drivers/staging/greybus/connection.c

+11 −3
Original line number Diff line number Diff line
@@ -141,8 +141,9 @@ void gb_connection_bind_protocol(struct gb_connection *connection) 
 * Returns a pointer to the new connection if successful, or a null

 * pointer otherwise.

 */

struct gb_connection *gb_connection_create(struct gb_bundle *bundle,

				u16 cport_id, u8 protocol_id)

struct gb_connection *

gb_connection_create_range(struct gb_bundle *bundle, u16 cport_id,

			   u8 protocol_id, u32 ida_start, u32 ida_end)

{

	struct gb_connection *connection;

	struct greybus_host_device *hd = bundle->intf->hd;
@@ -165,7 +166,7 @@ struct gb_connection *gb_connection_create(struct gb_bundle *bundle, 
	if (!connection)

		return NULL;



	retval = ida_simple_get(id_map, 0, CPORT_ID_MAX, GFP_KERNEL);

	retval = ida_simple_get(id_map, ida_start, ida_end, GFP_KERNEL);

	if (retval < 0) {

		kfree(connection);

		return NULL;
@@ -221,6 +222,13 @@ struct gb_connection *gb_connection_create(struct gb_bundle *bundle, 
	return connection;

}



struct gb_connection *gb_connection_create(struct gb_bundle *bundle,

				u16 cport_id, u8 protocol_id)

{

	return gb_connection_create_range(bundle, cport_id, protocol_id, 0,

					  CPORT_ID_MAX);

}



/*

 * Cancel all active operations on a connection.

 *

drivers/staging/greybus/connection.h

+3 −0
Original line number Diff line number Diff line
@@ -47,6 +47,9 @@ struct gb_connection { 


struct gb_connection *gb_connection_create(struct gb_bundle *bundle,

				u16 cport_id, u8 protocol_id);

struct gb_connection *gb_connection_create_range(struct gb_bundle *bundle,

				u16 cport_id, u8 protocol_id, u32 ida_start,

				u32 ida_end);

void gb_connection_destroy(struct gb_connection *connection);



int gb_connection_init(struct gb_connection *connection);