diff options
Diffstat (limited to 'include/media/cec.h')
| -rw-r--r-- | include/media/cec.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/include/media/cec.h b/include/media/cec.h index 208c9613c07e..abee41ae02d0 100644 --- a/include/media/cec.h +++ b/include/media/cec.h @@ -26,13 +26,17 @@ * @dev: cec device * @cdev: cec character device * @minor: device node minor number + * @lock: lock to serialize open/release and registration * @registered: the device was correctly registered * @unregistered: the device was unregistered + * @lock_fhs: lock to control access to @fhs * @fhs: the list of open filehandles (cec_fh) - * @lock: lock to control access to this structure * * This structure represents a cec-related device node. * + * To add or remove filehandles from @fhs the @lock must be taken first, + * followed by @lock_fhs. It is safe to access @fhs if either lock is held. + * * The @parent is a physical device. It must be set by core or device drivers * before registering the node. */ @@ -43,10 +47,13 @@ struct cec_devnode { /* device info */ int minor; + /* serialize open/release and registration */ + struct mutex lock; bool registered; bool unregistered; + /* protect access to fhs */ + struct mutex lock_fhs; struct list_head fhs; - struct mutex lock; }; struct cec_adapter; @@ -111,6 +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); @@ -156,6 +164,13 @@ struct cec_adap_ops { * @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 + * @transmit_in_progress_aborted: true if a transmit is in progress is to be + * aborted. This happens if the logical address is + * invalidated while the transmit is ongoing. In that + * case the transmit will finish, but will not retransmit + * and be marked as ABORTED. + * @xfer_timeout_ms: the transfer timeout in ms. + * If 0, then timeout after 2.1 ms. * @kthread_config: kthread used to configure a CEC adapter * @config_completion: used to signal completion of the config kthread * @kthread: main CEC processing thread @@ -168,7 +183,9 @@ struct cec_adap_ops { * @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_enabled: the CEC adapter is enabled * @is_configuring: the CEC adapter is configuring (i.e. claiming LAs) + * @must_reconfigure: while configuring, the PA changed, so reclaim 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. @@ -210,6 +227,8 @@ struct cec_adapter { struct list_head wait_queue; struct cec_data *transmitting; bool transmit_in_progress; + bool transmit_in_progress_aborted; + unsigned int xfer_timeout_ms; struct task_struct *kthread_config; struct completion config_completion; @@ -224,7 +243,9 @@ struct cec_adapter { u16 phys_addr; bool needs_hpd; + bool is_enabled; bool is_configuring; + bool must_reconfigure; bool is_configured; bool cec_pin_is_high; bool adap_controls_phys_addr; |