diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2022-02-03 13:11:15 +0100 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2022-04-06 10:31:05 +0200 |
| commit | 7ebdf1f2e7b92536eb3ea7595a051057eec9ef1b (patch) | |
| tree | 761b0189ddfcb2bc6bc38a44291ea8702e2b7a6f | |
| parent | 63bfef280ce087fc4049ea39b97b113421fea3d3 (diff) | |
cec: add optional adap_configured callbackbr-v5.19b
This new optional callback is called when the adapter is fully configured
or fully unconfigured. Some drivers may have to take action when this
happens.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
| -rw-r--r-- | Documentation/driver-api/media/cec-core.rst | 13 | ||||
| -rw-r--r-- | drivers/media/cec/core/cec-adap.c | 2 | ||||
| -rw-r--r-- | include/media/cec.h | 1 |
3 files changed, 15 insertions, 1 deletions
diff --git a/Documentation/driver-api/media/cec-core.rst b/Documentation/driver-api/media/cec-core.rst index c6194ee81c41..ae0d20798edc 100644 --- a/Documentation/driver-api/media/cec-core.rst +++ b/Documentation/driver-api/media/cec-core.rst @@ -109,6 +109,7 @@ your driver: int (*adap_monitor_all_enable)(struct cec_adapter *adap, bool enable); int (*adap_monitor_pin_enable)(struct cec_adapter *adap, bool enable); int (*adap_log_addr)(struct cec_adapter *adap, u8 logical_addr); + void (*adap_configured)(struct cec_adapter *adap, bool configured); int (*adap_transmit)(struct cec_adapter *adap, u8 attempts, u32 signal_free_time, struct cec_msg *msg); void (*adap_status)(struct cec_adapter *adap, struct seq_file *file); @@ -117,7 +118,7 @@ your driver: /* Error injection callbacks */ ... - /* High-level callbacks */ + /* High-level callback */ ... }; @@ -178,6 +179,16 @@ can receive directed messages to that address. Note that adap_log_addr must return 0 if logical_addr is CEC_LOG_ADDR_INVALID. +Called when the adapter is fully configured or unconfigured:: + + void (*adap_configured)(struct cec_adapter *adap, bool configured); + +If configured == true, then the adapter is fully configured, i.e. all logical +addresses have been successfully claimed. If configured == false, then the +adapter is unconfigured. If the driver has to take specific actions after +(un)configuration, then that can be done through this optional callback. + + To transmit a new message:: int (*adap_transmit)(struct cec_adapter *adap, u8 attempts, diff --git a/drivers/media/cec/core/cec-adap.c b/drivers/media/cec/core/cec-adap.c index 2425cb4c6a9a..e789aec7455c 100644 --- a/drivers/media/cec/core/cec-adap.c +++ b/drivers/media/cec/core/cec-adap.c @@ -1336,6 +1336,7 @@ static void cec_adap_unconfigure(struct cec_adapter *adap) cec_flush(adap); wake_up_interruptible(&adap->kthread_waitq); cec_post_state_event(adap); + call_void_op(adap, adap_configured, false); } /* @@ -1517,6 +1518,7 @@ configured: adap->kthread_config = NULL; complete(&adap->config_completion); mutex_unlock(&adap->lock); + call_void_op(adap, adap_configured, true); return 0; unconfigure: diff --git a/include/media/cec.h b/include/media/cec.h index 80340c9eb0f2..6f13b0222aa3 100644 --- a/include/media/cec.h +++ b/include/media/cec.h @@ -118,6 +118,7 @@ struct cec_adap_ops { int (*adap_monitor_all_enable)(struct cec_adapter *adap, bool enable); int (*adap_monitor_pin_enable)(struct cec_adapter *adap, bool enable); int (*adap_log_addr)(struct cec_adapter *adap, u8 logical_addr); + void (*adap_configured)(struct cec_adapter *adap, bool configured); int (*adap_transmit)(struct cec_adapter *adap, u8 attempts, u32 signal_free_time, struct cec_msg *msg); void (*adap_status)(struct cec_adapter *adap, struct seq_file *file); |