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greybus: svc: add interface eject operation 

Add a new svc operation which will be used to send a request to eject a
given interface.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Jeffrey Carlyle <jcarlyle@google.com>
This commit is contained in:
Rui Miguel Silva 2016-01-11 13:46:31 +00:00 committed by Greg Kroah-Hartman
parent adb57cff54
commit c5d55fb359
3 changed files with 25 additions and 0 deletions
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7
drivers/staging/greybus/greybus_protocols.h
View File

@ -760,6 +760,7 @@ struct gb_spi_transfer_response {
#define GB_SVC_TYPE_ROUTE_CREATE 0x0b
#define GB_SVC_TYPE_ROUTE_DESTROY 0x0c
#define GB_SVC_TYPE_INTF_SET_PWRM 0x10
#define GB_SVC_TYPE_INTF_EJECT 0x11
/*
* SVC version request/response has the same payload as
@ -801,6 +802,12 @@ struct gb_svc_intf_reset_request {
} __packed;
/* interface reset response has no payload */
#define GB_SVC_EJECT_TIME 9000
struct gb_svc_intf_eject_request {
__u8 intf_id;
} __packed;
/* interface eject response has no payload */
struct gb_svc_conn_create_request {
__u8 intf1_id;
__le16 cport1_id;

17
drivers/staging/greybus/svc.c
View File

@ -69,6 +69,23 @@ int gb_svc_intf_reset(struct gb_svc *svc, u8 intf_id)
}
EXPORT_SYMBOL_GPL(gb_svc_intf_reset);
int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id)
{
struct gb_svc_intf_eject_request request;
request.intf_id = intf_id;
/*
* The pulse width for module release in svc is long so we need to
* increase the timeout so the operation will not return to soon.
*/
return gb_operation_sync_timeout(svc->connection,
GB_SVC_TYPE_INTF_EJECT, &request,
sizeof(request), NULL, 0,
GB_SVC_EJECT_TIME);
}
EXPORT_SYMBOL_GPL(gb_svc_intf_eject);
int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
u32 *value)
{

1
drivers/staging/greybus/svc.h
View File

@ -40,6 +40,7 @@ int gb_svc_connection_create(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
u8 intf2_id, u16 cport2_id, bool boot_over_unipro);
void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
u8 intf2_id, u16 cport2_id);
int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id);
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,