BSP Driver not initialized

Inderjit Singh inderjit.singh at aacmicrotec.com
Thu Jul 2 09:05:53 UTC 2015


Hi Hesham,

We are using the 4.10.99 version with our own bsp so far. It's a new hardware (with FPGA) and we are creating this new bsp. for it So naturally It it's not part of RTEMS tree because it's incomplete. 

However, the comment from Joel and my 'guessing' has kicked the BSP at boot time. So all is good. However, I'm unsure if this is the way to do it. Properly i mean. Is there any doc on this or have I missed it?
 
________________________________________
From: Hesham ALMatary [heshamelmatary at gmail.com]
Sent: 02 July 2015 10:44
To: Inderjit Singh
Cc: devel at rtems.org
Subject: Re: BSP Driver not initialized

Hi,

On Wed, Jul 1, 2015 at 4:47 PM, Inderjit Singh
<inderjit.singh at aacmicrotec.com> wrote:
> Hi,
>
> I'm trying to initialize (get up) my driver for a or1k target. I reused the
> the hello sample program to see if the driver ckicks in but nothing in th
> console (except the hello msg in Init fiunction. Does anyone know why?
>
> I updated the file as shown below. At this point I am only interested in to
> see the initialization kicking in but I don't seems to get anything.
>
> rtems/c/src/lib/libbsp/or1k/or1k-bsp/mydriver/mydriver.c:
> ---
> rtems_device_driver rtems_mydriver_initialize(rtems_device_major_number
> major,
>
> rtems_device_major_number unused,
>                                               void *arg)
> {
>   printk("INIT\r\n");
>
>   // rtems_io_register_driver
>   // rtems_io_register_name (/dev/mydriver) with major
>
>   return RTEMS_SUCCESSFUL;
> }
>
> ... (Empty functions for read write etc.) ...
>
>
> rtems/c/src/lib/libbsp/or1k/or1k-bsp/include/mydriver.h:
> ---
Just a note, is this the actual path for your RTEMS source? If so
which RTEMS version are you using? I am asking because there is no BSP
with "or1k-bsp" name. Also do you work on a simulator or an FPGA
board?

> #include <bsp.h>
>
> static rtems_device_driver
> rtems_mydriver_initialize(rtems_device_major_number major,
>
> rtems_device_minor_number unused,
>                                                      void *);
>
> ... (Other definitions for read write etc.) ...
>
> #define AAC_MYDRIVER_DRIVER {                   \
>       rtems_mydriver_initialize,                \
>       rtems_mydriver_open,                      \
>       rtems_mydriver_close,                     \
>       rtems_mydriver_read,                      \
>       rtems_mydriver_write,                     \
>       rtems_mydriver_control }
>
> static rtems_driver_address_table mydriver = AAC_MYDRIVER_DRIVER;
>
> Makefile.am file rtems/c/src/lib/libbsp/or1k/or1k-bsp/Makefile.am:
> ---
> ...
> include_bsp_HEADERS += include/mydriver.h
> ...
> libbsp_a_SOURCES += mydriver/mydriver.c
>
> Any help is appreciated.
> Thanks,
> Indy
>
> _______________________________________________
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> devel at rtems.org
> http://lists.rtems.org/mailman/listinfo/devel



--
Hesham



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