Hi All,
In MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf, the
polling interval is fixed by macro:
#define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s
However, this may cause fast input to be truncated on some platform. For
example, we have a serial console with below features:
1. Baud rate: 115200
2. FIFO depth of UART device: 32
If we want to capture all input, we need to poll with the interval of 32
/ (115200 / (8 + 1 + 1)) = 2.8 ms, 8 + 1 + 1 for data bits + start bit +
stop bit.
So, I suppose to use a PCD to set the interval per platform, or
calculate from serial IO protocol IO Mode, which contains FIFO depth and
data bits, etc, and we can use 200000 as the maximum for compatibility,
or default value when fifo depth is 0.
Please let me know your comments.
Thanks.
Heyi
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