diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2015-10-15 16:10:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2015-10-15 11:31:08 -0700 |
| commit | 608ab2fe99396eff941256d7f0ae7b91438e6cc1 (patch) | |
| tree | 8f7f65859384ab7bec9f1638368741a3826aba3e /drivers/staging/greybus/greybus.h | |
| parent | 29a167ec87fb971931a033766e9e387d0fcabe7d (diff) | |
greybus: es1,es2: add USB vendor command to timestamp
As part of an effort to get deep inspection of latencies throughout the
greybus network including HSIC, UniPro and firmware incurred latencies a
new command to the APBridge to tag a known offset with timestamping data
has been introduced. This patch adds that code to the es1 and es2 drivers.
- latency_tag_enable
- latency_tag_disable
Respectively send the enable/disable command to APBridge on a per-CPort
basis. This allows only specified cports to have timestamping data added by
APBridge, leaving any CPort not specifically enabled untouched.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/greybus.h')
| -rw-r--r-- | drivers/staging/greybus/greybus.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/greybus/greybus.h b/drivers/staging/greybus/greybus.h index e4e53c139ac4..ec4a73884b09 100644 --- a/drivers/staging/greybus/greybus.h +++ b/drivers/staging/greybus/greybus.h @@ -80,6 +80,9 @@ struct greybus_host_driver { int (*message_send)(struct greybus_host_device *hd, u16 dest_cport_id, struct gb_message *message, gfp_t gfp_mask); void (*message_cancel)(struct gb_message *message); + int (*latency_tag_enable)(struct greybus_host_device *hd, u16 cport_id); + int (*latency_tag_disable)(struct greybus_host_device *hd, + u16 cport_id); }; struct greybus_host_device { |