[PATCH] or1ksim: Console: implement uart_read_polled

[Hesham Moustafa]

Thanks for committing.

There are some other few pending patches. This one [1] adds
qemu-system-or32 script to sim-scripts, and this [2] adds a new RTEMS
tester script to test or1ksim BSP running on qemu.

[1] http://lists.rtems.org/pipermail/devel/2014-September/008064.html
[2] http://lists.rtems.org/pipermail/devel/2014-September/008047.html

On Mon, Sep 29, 2014 at 9:38 PM, Joel Sherrill <joel.sherrill at oarcorp.com>
wrote:

>  Sorry. This is now committed.
>
> Anything else besides the task stack initialization patch?
>
> --joel
>
> On 9/29/2014 12:57 AM, Hesham Moustafa wrote:
>
> Hi,
>
>  This patch is needed for capture, pppd and any other tests that prompt
> users to input data interactively.
>
>  Regards,
> Hesham
>
> On Fri, Sep 19, 2014 at 9:20 PM, Hesham ALMatary <heshamelmatary at gmail.com
> > wrote:
>
>> Implement uart_read_polled which is needed for any application that
>> reads input from users. It works fine with pppd, capture, and all
>> termios tests.
>> ---
>>  c/src/lib/libbsp/or1k/or1ksim/console/uart.c | 13 +++++++++++--
>>  1 file changed, 11 insertions(+), 2 deletions(-)
>>
>> diff --git a/c/src/lib/libbsp/or1k/or1ksim/console/uart.c
>> b/c/src/lib/libbsp/or1k/or1ksim/console/uart.c
>> index f1cfa09..c0ee618 100644
>> --- a/c/src/lib/libbsp/or1k/or1ksim/console/uart.c
>> +++ b/c/src/lib/libbsp/or1k/or1ksim/console/uart.c
>> @@ -86,9 +86,18 @@ static int uart_last_close(int major, int minor, void
>> *arg)
>>    return 0;
>>  }
>>
>> -static int uart_read_polled(int minor)
>> +static char uart_read_polled(int minor)
>>  {
>> -   return -1;
>> +  unsigned char lsr;
>> +  char c;
>> +
>> + /* Get a character when avaiable */
>> +  do {
>> +       lsr = OR1KSIM_REG(OR1KSIM_BSP_UART_REG_LINE_STATUS);
>> +  } while ((lsr & OR1KSIM_BSP_UART_REG_LINE_STATUS_DR)
>> +           != OR1KSIM_BSP_UART_REG_LINE_STATUS_DR);
>> +
>> +  return OR1KSIM_REG(OR1KSIM_BSP_UART_REG_RX);
>>  }
>>
>>  static void uart_write_polled(int minor, char c)
>> --
>> 1.9.3
>>
>>
>
> --
> Joel Sherrill, Ph.D.             Director of Research & Developmentjoel.sherrill at OARcorp.com        On-Line Applications Research
> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
> Support Available                (256) 722-9985
>
>
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