Commit 784f8761 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Greg Kroah-Hartman
Browse files

greybus: svc: Add support for the link config operation 



Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent c6622216

drivers/staging/greybus/greybus_protocols.h

+15 −0
Original line number Diff line number Diff line
@@ -726,6 +726,7 @@ struct gb_spi_transfer_response { 
#define GB_SVC_TYPE_DME_PEER_SET	0x0a

#define GB_SVC_TYPE_ROUTE_CREATE	0x0b

#define GB_SVC_TYPE_ROUTE_DESTROY	0x0c

#define GB_SVC_TYPE_LINK_CONFIG		0x0d



/*

 * SVC version request/response has the same payload as
@@ -806,6 +807,20 @@ struct gb_svc_dme_peer_set_response { 
	__le16	result_code;

} __packed;



#define GB_SVC_LINK_CONFIG_BURST_PWM		0

#define GB_SVC_LINK_CONFIG_BURST_HS_A		1

#define GB_SVC_LINK_CONFIG_BURST_HS_B		2

#define GB_SVC_LINK_CONFIG_FLAG_AUTO_SLEEP	(1 << 0)



struct gb_svc_link_config_request {

	__u8 intf_id;

	__u8 burst;

	__u8 gear;

	__u8 nlanes;

	__u8 flags;

} __packed;

/* link config response has no payload */



/* Attributes for peer get/set operations */

#define DME_ATTR_SELECTOR_INDEX		0

#define DME_ATTR_T_TST_SRC_INCREMENT	0x4083

drivers/staging/greybus/svc.c

+18 −0
Original line number Diff line number Diff line
@@ -270,6 +270,24 @@ static void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id) 
	}

}



/* Creates bi-directional routes between the devices */

int gb_svc_link_config(struct gb_svc *svc, u8 intf_id,

		       unsigned int burst, unsigned int gear,

		       unsigned int nlanes, unsigned int flags)

{

	struct gb_svc_link_config_request request;



	request.intf_id = intf_id;

	request.burst = burst;

	request.gear = gear;

	request.nlanes = nlanes;

	request.flags = flags;



	return gb_operation_sync(svc->connection, GB_SVC_TYPE_LINK_CONFIG,

				 &request, sizeof(request), NULL, 0);

}

EXPORT_SYMBOL_GPL(gb_svc_link_config);



static int gb_svc_version_request(struct gb_operation *op)

{

	struct gb_connection *connection = op->connection;

drivers/staging/greybus/svc.h

+3 −0
Original line number Diff line number Diff line
@@ -44,6 +44,9 @@ int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector, 
			u32 *value);

int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,

			u32 value);

int gb_svc_link_config(struct gb_svc *svc, u8 intf_id, unsigned int burst,

		       unsigned int gear, unsigned int nlanes,

		       unsigned int flags);



int gb_svc_protocol_init(void);

void gb_svc_protocol_exit(void);