diff options
| author | Hans Verkuil <hansverk@cisco.com> | 2016-08-10 12:24:45 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-08-22 17:00:51 (GMT) |
| commit | dcceb1eaf210096831b14471bc87678375b086ed (patch) | |
| tree | 46cd68a00af70163b3eb7a62a86b43e3e7aaa69e /drivers/staging | |
| parent | 277f963cea4ec87144c6713377322fe3bf172a5e (diff) | |
| download | linux-dcceb1eaf210096831b14471bc87678375b086ed.tar.xz | |
[media] cec: add CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK flag
Currently if none of the requested logical addresses can be claimed, the
framework will fall back to the Unregistered logical address.
Add a flag to enable this explicitly. By default it will just go back to
the unconfigured state.
Usually Unregistered is not something you want since the functionality is
very limited. Unless the application has support for this, it will fail
to work correctly. So require that the application explicitly requests
this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/media/cec/cec-adap.c | 4 | ||||
| -rw-r--r-- | drivers/staging/media/cec/cec-api.c | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/staging/media/cec/cec-adap.c b/drivers/staging/media/cec/cec-adap.c index 9dcb784..2458a6c 100644 --- a/drivers/staging/media/cec/cec-adap.c +++ b/drivers/staging/media/cec/cec-adap.c @@ -1047,6 +1047,10 @@ static int cec_config_thread_func(void *arg) dprintk(1, "could not claim LA %d\n", i); } + if (adap->log_addrs.log_addr_mask == 0 && + !(las->flags & CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK)) + goto unconfigure; + configured: if (adap->log_addrs.log_addr_mask == 0) { /* Fall back to unregistered */ diff --git a/drivers/staging/media/cec/cec-api.c b/drivers/staging/media/cec/cec-api.c index 4e2696a..6f58ee8 100644 --- a/drivers/staging/media/cec/cec-api.c +++ b/drivers/staging/media/cec/cec-api.c @@ -162,7 +162,7 @@ static long cec_adap_s_log_addrs(struct cec_adapter *adap, struct cec_fh *fh, return -ENOTTY; if (copy_from_user(&log_addrs, parg, sizeof(log_addrs))) return -EFAULT; - log_addrs.flags = 0; + log_addrs.flags &= CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK; mutex_lock(&adap->lock); if (!adap->is_configuring && (!log_addrs.num_log_addrs || !adap->is_configured) && |