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author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2020-06-20 12:16:41 +0200 |
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committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-06-23 15:11:44 +0200 |
commit | e233f81cfc906e415e5784526d9a6ec7d7cf3c5c (patch) | |
tree | 8ef0c2d742b1d5a21b34f3c99ffc4ef1b5c6d054 /include/media/cec.h | |
parent | 8dd65ed67e1679830dc8f94169d25ec9452da99d (diff) | |
download | linux-e233f81cfc906e415e5784526d9a6ec7d7cf3c5c.tar.bz2 |
media: media/cec.h: document cec_adapter fields
Document this core CEC structure.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include/media/cec.h')
-rw-r--r-- | include/media/cec.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/media/cec.h b/include/media/cec.h index 1de44a4fc390..32f7c695d7b5 100644 --- a/include/media/cec.h +++ b/include/media/cec.h @@ -144,6 +144,55 @@ struct cec_adap_ops { */ #define CEC_MAX_MSG_TX_QUEUE_SZ (18 * 1) +/** + * struct cec_adapter - cec adapter structure + * @owner: module owner + * @name: name of the CEC adapter + * @devnode: device node for the /dev/cecX device + * @lock: mutex controlling access to this structure + * @rc: remote control device + * @transmit_queue: queue of pending transmits + * @transmit_queue_sz: number of pending transmits + * @wait_queue: queue of transmits waiting for a reply + * @transmitting: CEC messages currently being transmitted + * @transmit_in_progress: true if a transmit is in progress + * @kthread_config: kthread used to configure a CEC adapter + * @config_completion: used to signal completion of the config kthread + * @kthread: main CEC processing thread + * @kthread_waitq: main CEC processing wait_queue + * @ops: cec adapter ops + * @priv: cec driver's private data + * @capabilities: cec adapter capabilities + * @available_log_addrs: maximum number of available logical addresses + * @phys_addr: the current physical address + * @needs_hpd: if true, then the HDMI HotPlug Detect pin must be high + * in order to transmit or receive CEC messages. This is usually a HW + * limitation. + * @is_configuring: the CEC adapter is configuring (i.e. claiming LAs) + * @is_configured: the CEC adapter is configured (i.e. has claimed LAs) + * @cec_pin_is_high: if true then the CEC pin is high. Only used with the + * CEC pin framework. + * @last_initiator: the initiator of the last transmitted message. + * @monitor_all_cnt: number of filehandles monitoring all msgs + * @monitor_pin_cnt: number of filehandles monitoring pin changes + * @follower_cnt: number of filehandles in follower mode + * @cec_follower: filehandle of the exclusive follower + * @cec_initiator: filehandle of the exclusive initiator + * @passthrough: if true, then the exclusive follower is in + * passthrough mode. + * @log_addrs: current logical addresses + * @conn_info: current connector info + * @tx_timeouts: number of transmit timeouts + * @notifier: CEC notifier + * @pin: CEC pin status struct + * @cec_dir: debugfs cec directory + * @status_file: debugfs cec status file + * @error_inj_file: debugfs cec error injection file + * @sequence: transmit sequence counter + * @input_phys: remote control input_phys name + * + * This structure represents a cec adapter. + */ struct cec_adapter { struct module *owner; char name[32]; |