[GSoC - x86_64] Console / serial communication

[Amaan Cheval]

Brilliant, thank you for the quick response and clarification!

On Wed, Jun 27, 2018 at 10:51 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> On 27/06/18 06:59, Amaan Cheval wrote:
>>
>> Quick question since the BSP guide is outdated - I see several
>> "methods" of RTEMS' console management. The guide says to use
>> console-termios.c (and rtems_termios_device_install) as the "new"
>> method.
>>
>> https://docs.rtems.org/branches/master/bsp-howto/console.html#build-system-and-files
>
>
> The console driver documentation in the BSP guide is up to date.
>
>>
>> Most BSPs (beagle, pc386, malta) using NS16550 use legacy-console.c,
>> though - are NS16550 and Termios mutually exclusive for now?
>>
>> Or is it simply that none of the old NS16550 users have been ported
>> over to using console-termios.c as well?
>>
>> What would be the expectation from a new BSP?
>
>
> Definitely use rtems_termios_device_install() in new BSPs. There is a
> NS16550 driver variant for this new interface:
>
> bsps/shared/dev/serial/ns16550-context.c
>
> In <libchip/ns16550.h>:
>
> extern const rtems_termios_device_handler ns16550_handler_interrupt;
> extern const rtems_termios_device_handler ns16550_handler_polled;
> extern const rtems_termios_device_handler ns16550_handler_task;
>
> extern const rtems_termios_device_flow ns16550_flow_rtscts;
> extern const rtems_termios_device_flow ns16550_flow_dtrcts;
>
> void ns16550_polled_putchar(rtems_termios_device_context *base, char out);
>
> int ns16550_polled_getchar(rtems_termios_device_context *base);
>
> bool ns16550_probe(rtems_termios_device_context *base);
>
> --
> Sebastian Huber, embedded brains GmbH
>
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>
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>