In the uart module, the following functions are implemented:
- init_uart_channel
Initialize each field of uart channel instance.
- create_uart_channel_dev
Create one channel device instance to store information about
one uart channel device which will be opened.
- wait_uart_channel_devs_threads
Wait uart channel devices threads to exit
- destroy_uart_channel
Destroy uart channel and release channel device instance
- listen_uart_channel_dev
Wait to connect device in uart channel
- connect_uart_channel_dev
Send sync message every 5 second
- poll_and_dispatch_uart_channel_events
Poll and dispatch message received from uart channel
- find_uart_channel_dev
Find uart channel device instance according to fd
- find_uart_channel_dev_by_name
Find uart channel device instance according to device name
- disconnect_uart_channel_dev
Disconnect uart channel device instance
- stop_listen_uart_channel_dev
Stop to listen uart channel device
- enable_uart_channel_dev_resend
Set the uart channel device resending buffer and
resending time
- enable_all_uart_channel_dev_resend
Enable resend for all connected uart channel devices
- disable_uart_channel_dev_resend
Clear the uart channel device resending buffer and
resending time
- notify_all_connected_uart_channel_dev
Send message to each connected uart channel device
- check_uart_channel_connection_list_empty
Check whether uart channel connection list is empty or not
TODO:
Will refine resending logic in the
poll_and_dispatch_uart_channel_events, and add
SYNC command resending.
v3-->v4:
Initialize each field of uart channel instance.
Add one flag indicating master channel device.
Update interface names.
v4-->v5:
Refine interface name.
v5-->v6:
Move uart channel operations from command handler module
v6-->v7:
Add enable_uart_channel_dev_resend and
disable_uart_channel_dev_resend;
Fix bugs about receiving message timeout.
v7-->v8:
Add enable_all_uart_channel_dev_resend interface.
v8-->v9:
Update error handling.
Use strlen to calculate the length of string, this will be
the parameter of send_message_by_uart.
Tracked-On: #6652
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Reviewed-by: fei1.li@intel.com
