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greybus: svc: add stub interface-activate function 

Add message structures (based on the current spec) for the SVC Interface
Activate operation, and a stub function that always return the Greybus
interface type.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2016-04-23 18:47:28 +02:00 committed by Greg Kroah-Hartman
parent 017482b28d
commit 1e8e22b5cb
3 changed files with 24 additions and 0 deletions
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14
drivers/staging/greybus/greybus_protocols.h
View File

@ -802,6 +802,7 @@ struct gb_spi_transfer_response {
#define GB_SVC_TYPE_PWRMON_RAIL_NAMES_GET 0x15
#define GB_SVC_TYPE_PWRMON_SAMPLE_GET 0x16
#define GB_SVC_TYPE_PWRMON_INTF_SAMPLE_GET 0x17
#define GB_SVC_TYPE_INTF_ACTIVATE 0x27
/*
* SVC version request/response has the same payload as
@ -1008,6 +1009,19 @@ struct gb_svc_pwrmon_intf_sample_get_response {
__le32 measurement;
} __packed;
struct gb_svc_intf_activate_request {
__u8 intf_id;
} __packed;
#define GB_SVC_INTF_TYPE_UNKNOWN 0x00
#define GB_SVC_INTF_TYPE_DUMMY 0x01
#define GB_SVC_INTF_TYPE_UNIPRO 0x02
#define GB_SVC_INTF_TYPE_GREYBUS 0x03
struct gb_svc_intf_activate_response {
__u8 intf_type;
} __packed;
/* RAW */
/* Version of the Greybus raw protocol we support */

9
drivers/staging/greybus/svc.c
View File

@ -274,6 +274,15 @@ int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable)
return 0;
}
int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type)
{
/* FIXME: implement */
*intf_type = GB_SVC_INTF_TYPE_GREYBUS;
return 0;
}
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

@ -72,6 +72,7 @@ int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id);
int gb_svc_intf_vsys_set(struct gb_svc *svc, u8 intf_id, bool enable);
int gb_svc_intf_refclk_set(struct gb_svc *svc, u8 intf_id, bool enable);
int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable);
int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type);
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,