[PATCH v2 0/7] Raspberry Pi VideoCore support for console on HDMI output

Sat May 28 11:52:09 UTC 2016

I glanced and thought they looked fine. Wait until Tuesday to see if
Alan gets a chance to test.

On Fri, May 27, 2016 at 5:26 PM, Alan Cudmore <alan.cudmore at gmail.com> wrote:
> Hi Pavel,
> I will try to run the tests with the HDMI output before Monday.
>
> If I get time, I’ll try the Raspberry Pi zero and also see if I can narrow down the firmware issue.
>
> Eventually I would like to try the u-boot option as well as JTAG debugging.
>
> Alan
>
>> On May 27, 2016, at 10:18 AM, Pavel Pisa <ppisa4lists at pikron.com> wrote:
>>
>> Hello all,
>>
>> patches seems to not change situation/make problems
>> so if there is no remark I would push them on Monday.
>> Do you agree?
>>
>> The RPi1 and RPi2 testing state:
>>
>> Tested to work on RPi1 with serial and graphic output
>> and direct boot and boot over U-boot.
>> Reported to work on RPi2 by Alan Cudmore with older
>> firmware. Problem with newer firmware stays same
>> as for RTEMS mainline.
>> Tested by me to run with and without graphic output
>> on QEMU but due lacks of bcm2835 timer emulation on
>> the QEMU side ticker stops with print of time zero.
>>
>> Best wishes,
>>
>>               Pavel
>>
>> On Sunday 22 of May 2016 02:13:03 ppisa4lists at pikron.com wrote:
>>> From: Pavel Pisa <ppisa at pikron.com>
>>>
>>> The series updates and cleans YANG Qiao GSoC 2015 work for actual
>>> RTEMS 4.12 development version.
>>>
>>> The changes require that VideoCore firmware is running even
>>> if video output is not used because mailbox based communication
>>> with VideoCore is used to obtain SD command line parameters
>>> passed to the RTEMS application image and to limit RTEMS RAM
>>> workarea to not go beyond VideoCore assigned memory start.
>>>
>>> The two options configurable by "cmdline.txt" file read
>>> and made accessible by VideoCore firmware are present
>>>
>>>  --video=
>>>     possible values
>>>         auto  - select mode automatically according to the connected
>>> monitor off  (or none) - disable video support
>>>         width x height with optional bpp - for example 800x600 or
>>> 800x600-32
>>>
>>>  --console=
>>>     fbcons - redirect RTEMS console output to the connected monitor
>>>         if --video= is not specified/enabled or monitor is not detected
>>>         then output stays to be connected to the UART
>>>
>>> Typical "cmdline.txt" content for testing
>>>
>>>  --video=auto --console=fbcons
>>>
>>> WARNING: the used VideoCore service for command line arguments retrieval
>>>         returns only these arguments setup in "cmdline.txt".
>>>         Arguments provided to U-boot or other loader are ignored.
>>>
>>> Code has been tested or Raspberry Pi 1 with U-boot + TFTP and with direct
>>> boot from SD card with and without monitor connected. Code tested to
>>> not break standard serial console output for Raspberry Pi 2 on QEMU.
>>> Graphic output under QEMU results write abort because QEMU reported
>>> framebuffer size is not completely accessible, only 400 rows from 640x480
>>> reported screen works for the given mode.
>>>
>>> [PATCH v2] Updates to v2 version
>>>  - formatting of newly introduced files normalized by rtems.uncrustify
>>>  - incorrect clean after release spot by Gedare Bloom corrected
>>>  - HDMI monitor presence test commented (solution is not ideal but works
>>>    and if some more straightforward solution is found in future,
>>>    then it can be replaced)
>>>  - atomic flag used to ensure framebuffer single open only
>>>    is left in a place
>>>  - more cleanups and adjustment of compatibility with RPi2
>>>
>>> Pavel Pisa (4):
>>>  arm/raspberrypi: cmdline enhancement and early access workaround.
>>>  arm/raspberrypi: ensure that correct RPI_PERIPHERAL_BASE is provided
>>>    by raspberrypi.h
>>>  arm/raspberrypi: Raspberry Pi v2 ALLOCATE_BUFFER VC4 operation returns
>>>    direct address.
>>>  arm/raspberrypi: move MMU in front of application image to respect
>>>    variable memory size.
>>>
>>> YANG Qiao (3):
>>>  arm/raspberrypi: add VideoCore framebuffer without initialization
>>>  arm/raspberrypi: add video outchar support for rpi bsp
>>>  arm/raspberrypi: add fbcons support for rpi bsp
>>>
>>> c/src/lib/libbsp/arm/raspberrypi/Makefile.am       |   13 +-
>>> .../arm/raspberrypi/console/console-config.c       |   12 +-
>>> .../arm/raspberrypi/console/console_select.c       |  113 +
>>> c/src/lib/libbsp/arm/raspberrypi/console/fb.c      |  409 ++
>>> c/src/lib/libbsp/arm/raspberrypi/console/fbcons.c  |  177 +
>>> c/src/lib/libbsp/arm/raspberrypi/console/fbcons.h  |   47 +
>>> .../lib/libbsp/arm/raspberrypi/console/font_data.h | 4639
>>> ++++++++++++++++++++ c/src/lib/libbsp/arm/raspberrypi/console/outch.c   |
>>> 463 ++
>>> c/src/lib/libbsp/arm/raspberrypi/gpio/rpi-gpio.c   |    1 +
>>> c/src/lib/libbsp/arm/raspberrypi/include/bsp.h     |    9 +
>>> .../libbsp/arm/raspberrypi/include/raspberrypi.h   |    1 +
>>> c/src/lib/libbsp/arm/raspberrypi/include/rpi-fb.h  |   54 +
>>> c/src/lib/libbsp/arm/raspberrypi/misc/mailbox.c    |    1 +
>>> c/src/lib/libbsp/arm/raspberrypi/misc/timer.c      |    1 +
>>> c/src/lib/libbsp/arm/raspberrypi/misc/vc.c         |    4 +
>>> c/src/lib/libbsp/arm/raspberrypi/preinstall.am     |    8 +
>>> .../arm/raspberrypi/startup/bspgetworkarea.c       |   77 +
>>> .../libbsp/arm/raspberrypi/startup/bspstarthooks.c |    4 +
>>> c/src/lib/libbsp/arm/raspberrypi/startup/cmdline.c |   12 +-
>>> c/src/lib/libbsp/arm/raspberrypi/startup/linkcmds  |    6 +-
>>> c/src/lib/libbsp/arm/raspberrypi/startup/mminit.c  |   31 +
>>> 21 files changed, 6071 insertions(+), 11 deletions(-)
>>> create mode 100644
>>> c/src/lib/libbsp/arm/raspberrypi/console/console_select.c create mode
>>> 100644 c/src/lib/libbsp/arm/raspberrypi/console/fb.c
>>> create mode 100644 c/src/lib/libbsp/arm/raspberrypi/console/fbcons.c
>>> create mode 100644 c/src/lib/libbsp/arm/raspberrypi/console/fbcons.h
>>> create mode 100644 c/src/lib/libbsp/arm/raspberrypi/console/font_data.h
>>> create mode 100644 c/src/lib/libbsp/arm/raspberrypi/console/outch.c
>>> create mode 100644 c/src/lib/libbsp/arm/raspberrypi/include/rpi-fb.h
>>> create mode 100644
>>> c/src/lib/libbsp/arm/raspberrypi/startup/bspgetworkarea.c create mode
>>> 100644 c/src/lib/libbsp/arm/raspberrypi/startup/mminit.c
>
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