diff options
| author | Jeffrey Carlyle <jcarlyle@google.com> | 2016-05-06 12:43:53 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-05-09 08:47:18 +0200 |
| commit | 140026b32f953593eb8678d67fcc95534efe1b49 (patch) | |
| tree | 3b9a52bd6cede5e9cb4eb5b65444a5150d820ca4 /drivers/staging/greybus/svc.c | |
| parent | 144763bf8efd8bfc6b0c582fdf3f77564fc0296f (diff) | |
greybus: svc: implement svc_intf_activate
With upcoming firmware changes we will switch from an SVC-driven module
boot sequence to an AP-driven module sequence. This operation allows the
AP to request the SVC to boot a module to which the AP has previouslt
requested power be applied. This operation will also determine if the
remote interface is a dummy module, UniPro-only module, or full Greybus
module.
Testing done: Tested together with "new" firmware boot sequence to
verify that modules are detected and booted as expected.
Signed-off-by: Jeffrey Carlyle <jcarlyle@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/svc.c')
| -rw-r--r-- | drivers/staging/greybus/svc.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/staging/greybus/svc.c b/drivers/staging/greybus/svc.c index 1e6cab0173c4..a98593c0a39b 100644 --- a/drivers/staging/greybus/svc.c +++ b/drivers/staging/greybus/svc.c @@ -15,7 +15,8 @@ #define SVC_KEY_ARA_BUTTON KEY_A -#define SVC_INTF_EJECT_TIMEOUT 9000 +#define SVC_INTF_EJECT_TIMEOUT 9000 +#define SVC_INTF_ACTIVATE_TIMEOUT 6000 struct gb_svc_deferred_request { struct work_struct work; @@ -326,9 +327,21 @@ 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) { - /* FIXME: implement */ + struct gb_svc_intf_activate_request request; + struct gb_svc_intf_activate_response response; + int ret; + + request.intf_id = intf_id; + + ret = gb_operation_sync_timeout(svc->connection, + GB_SVC_TYPE_INTF_ACTIVATE, + &request, sizeof(request), + &response, sizeof(response), + SVC_INTF_ACTIVATE_TIMEOUT); + if (ret < 0) + return ret; - *intf_type = GB_SVC_INTF_TYPE_GREYBUS; + *intf_type = response.intf_type; return 0; } |