[PATCH v2] Raspberrypi: updated the console interface.
Niteesh
gsnb.gn at gmail.com
Sun Dec 29 10:04:03 UTC 2019
On Sun, Dec 29, 2019 at 2:33 PM Christian Mauderer <list at c-mauderer.de>
wrote:
> On 29/12/2019 07:09, Niteesh wrote:
> > Is there any way to test and debug this? Maybe using GDB to
> > see if a proper node is getting selected or not?
>
> Without a debugger debugging code that is started before the console is
> initialized is always a bit hard.
>
> - You can try to use your qemu setup. Most likely you'll have to add
> another parameter to load a FDT for it. Please take some notes for the
> documentation. Even only one line like "Use FDT from official image and
> use the following line to start qemu:..." is very helpfull.
>
> - You can initialize your serial port manually just like before and use
> printk debugging till you are sure your code does what it should do.
>
> - You can use a real hardware debugger for it. That's what I currently
> do - also qemu + gdb could be more powerfull. For that you basically
> connect the Alt4 pins (see https://pinout.xyz/pinout/jtag) to a hardware
> debugger (something supported by OpenOCD, Segger J-Link, ...) add
> "gpio=22-27=a4" to your config.txt and load a very minimal kernel that
> does just an endless loop. Note that I had some trouble debugging more
> than one core with my debugger.
>
> If possible I would suggest the first solution (qemu). It's most likely
> the most robust one.
>
> >
> > My plan is to remove console_select.c and usart.c files. And do all of
> > the initialization in
> > the console-config.c.
>
> OK for me. No need to split up code if it belongs together.
>
> > I looked at some of the device files from FreeBSD,
> > the address for the
> > peripheral's are the virtual address or the bus address, so I will
> > convert them to arm physical
> > addresses, using a macro, which subtracts an offset to get the physical
> > address.
>
> I would suggest to create something similar like the imx_get_reg_of_node
> function in the imx BSP.
>
> > For finding the UART ports, we could traverse through the alias node.
> > For rpi1 and rpi2 there should be just one(uart0), but
> > for newer models, there would two (uart0 and uart1). And then read the
> > stdout-path to find the serial that has to be used.
>
> Sounds OK.
>
> > And in console_initialize function, we should also parse the cmdline to
> > find if FB is to be used. And link the appropriate
> > driver to /dev/console.
>
> OK.
>
> > But how to handle the different types of device
> > instances? for all the bsp's that I used as reference,
> > all the uart devices were of same type, but here we have 3 different
> > serial devices.
> > My idea is manually intialize the devices, that is to traverse the alias
> > node, and intialize uart0 to pl011 and uart1 to aux if
> > it is available. and then seperately intialize the FB, Is there any
> > better way to do it?
>
> In FreeBSD the drivers usually have a probe and an attach function.
> Basically the system just loops through every (non-disabled) fdt node
> and asks every driver whether it wants that node (probe). If the driver
> wants it it calls the matching attach function.
>
> Currently there is no such infrastructure in RTEMS. Although it would be
> nice to implement one I think it would be a bigger project (maybe could
> be a complete GSoC project: plan a system; implement or port it;
> integrate it in at least one BSP). But a simmilar direction is possible
> here too:
>
> - Every driver gets it's "register" function (instead of probe and attach).
>
> - The register function checks for all nodes that it can handle and
> registers the driver. For the raspberry fdt that will be 0 or 1 devices
> for the pl011 and 0 or 1 for the mini UART and exactly one for the
> framebuffer.
>
> - You call all relevant register functions in the console initialization.
>
> - After that you parse the command line and create the link.
>
> I think that is basically what you described already just with a few
> more words ;-)
This is how I am going to implement them, there will two uart register
functions
register_pl011_uart and register_aux_uart which will probe for uart devices
and install
(rtems_device_handler_install) them. And a register_fb function that will
register the fb by
calling the fbcons_probe and install it
Then these function's will be called by the console_intialize function,
which parses the cmdline
and set the correct serial device.
Is this fine? or do you want to change something?
>
> >
> > On Sun, Dec 29, 2019 at 2:11 AM Christian Mauderer <list at c-mauderer.de
> > <mailto:list at c-mauderer.de>> wrote:
> >
> > On 28/12/2019 20:03, Niteesh wrote:
> > > I will start working on a patch that uses FDT. Instead of
> merging this
> > > I create a patch v3 that uses FDT. Shall I remove some files, I
> > will be
> > > heavily using
> > > the imx and other FDT based drivers as a reference.
> >
> > You can remove everything that is no longer used. I expect that it
> will
> > be mainly the files containing the table based selection and console
> > selection code.
> >
> > >
> > > On Sun, Dec 29, 2019 at 12:27 AM Christian Mauderer
> > <list at c-mauderer.de <mailto:list at c-mauderer.de>
> > > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>> wrote:
> > >
> > > On 28/12/2019 19:48, Niteesh wrote:
> > > > Is bsp_console_select legacy? And the new way will be by
> linking
> > > > the correct serial device to /dev/console in
> > > console_initialization, right?
> > > > If so, shall I add one?
> > >
> > > The function is only called from legacy-console.c. So yes:
> > This function
> > > can be removed. The logic on the other hand should move to
> > somewhere
> > > else.
> > >
> > > The console-termios-init.c creates a link named
> > CONSOLE_DEVICE_NAME. So
> > > you can't use that code and create your link manually. If you
> > use the
> > > table based approach (which is OK as a first step) you can't
> > really
> > > select the console.
> > >
> > > I would suggest to either clean that patch up so it can be
> > merged and
> > > move to a fdt based approach simmilar to imx in a second
> > patch. In that
> > > case the console_initialize() function from
> > console-termios-init.c will
> > > be replaced by a custom function that searches the FDT for the
> > devices.
> > > The FDT will make it simpler to adapt to RPi3. Or if you
> > prefere it you
> > > can do that right now and create a patch v3 that directly uses
> > FDT.
> > >
> > > >
> > > > On Sat, Dec 28, 2019 at 11:50 PM Niteesh <gsnb.gn at gmail.com
> > <mailto:gsnb.gn at gmail.com>
> > > <mailto:gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>>
> > > > <mailto:gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>
> > <mailto:gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>>>> wrote:
> > > >
> > > > I am sorry if this question sounds silly, but how can I
> > access the
> > > > output_char_fb if it
> > > > is marked as static in console-select.c, currently the fb
> > > context is
> > > > in console-config.c
> > > > Should I move the BSP_select_function to console-config?
> for
> > > shall I
> > > > remove the static qualifier
> > > > from the function?
> > > >
> > > > Currently, the console_select has 2 functions,
> > > bsp_Is_Available and
> > > > bsp_console_select.
> > > >
> > > > On Sat, Dec 28, 2019 at 11:30 PM Niteesh
> > <gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>
> > > <mailto:gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>>
> > > > <mailto:gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>
> > <mailto:gsnb.gn at gmail.com <mailto:gsnb.gn at gmail.com>>>> wrote:
> > > >
> > > > On Sat, Dec 28, 2019 at 11:12 PM Christian Mauderer
> > > > <list at c-mauderer.de <mailto:list at c-mauderer.de>
> > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> > > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>> wrote:
> > > >
> > > > On 28/12/2019 17:22, Niteesh wrote:
> > > > > I think you misunderstood, I was talking about
> the
> > > casting
> > > > in the
> > > > > rtems_termios_device_handler
> > > >
> > > > Yes, I misunderstood you there.
> > > >
> > > > > const rtems_termios_device_handler fbcons_fns =
> > > > > {
> > > > > .first_open = fbcons_open,
> > > > > .last_close = fbcons_close,
> > > > > .poll_read =
> fbcons_inbyte_nonblocking_polled,
> > > > > .write = (void
> > (*)(rtems_termios_device_context *,
> > > const
> > > > char *,
> > > > > size_t))fbcons_write_support_polled,
> > > > > .set_attributes = fbcons_set_attributes,
> > > > > .mode = TERMIOS_POLLED
> > > > > };
> > > > >
> > > > > the write requires a function type of
> > > > > *void (*write)(
> > > > > rtems_termios_device_context *context,
> > > > > const char *buf,
> > > > > size_t len
> > > > > );*
> > > > >
> > > > > but the fbcons function is of type
> > > > > *static ssize_t fbcons_write_support_polled(
> > > > > rtems_termios_device_context *base,
> > > > > const char *buf,
> > > > > size_t len
> > > > > )*
> > > > >
> > > > > Well, if the above cast in the device handler
> > causes a
> > > > problem, can you
> > > > > elaborate more on
> > > > > what kind of a problem would it be?
> > > >
> > > > In that case it should work. But why do you need
> to
> > > cast it
> > > > there?
> > > > Wouldn't it be simpler to just change the
> > > > fbcons_write_support_polled
> > > > function? It isn't used anywhere else or did I
> miss
> > > something?
> > > >
> > > > No, it is not used anywhere. I'll change the
> function.
> > > >
> > > > >
> > > > > And for the BSP_output_char function, I used a
> > function
> > > > pointer. The
> > > > > console_select assigns the
> > > > > appropriate function to the function pointer
> > and the
> > > > output_char call's
> > > > > it by providing the context.
> > > > > static void output_char(char c)
> > > > > {
> > > > > const console_device *dev =
> > > > &console_device_table[console_select];
> > > > > rtems_termios_device_context *con =
> > dev->context;
> > > > > console_instance(con, c);
> > > > > }
> > > > > console_instance is the function pointer,
> which is
> > > assigned to
> > > > > arm_pl011_write_polled by
> > > > > default, or to fbcons_write_polled, if frame
> > buffer is
> > > > decided to be used.
> > > >
> > > >
> > > > Yes it will work and it's resonable performant.
> > We are
> > > > talking about a
> > > > slow serial interface in an exception case. But
> > anyway I'm
> > > > not entirely
> > > > happy.
> > > >
> > > > The compiler should make something like the
> > following
> > > out of it:
> > > >
> > > > - Look up and call the value of BSP_output_char
> > > > - Load the context (start of table +
> > console_select +
> > > fixed
> > > > offset) into
> > > > "con"
> > > > - Look up and call the value of console_instance
> > > >
> > > > If you use the way I suggested below you will
> have
> > > about the
> > > > following:
> > > >
> > > > - Look up and call the value of BSP_output_char
> (one
> > > of the
> > > > wrappers)
> > > > - Call the right function with a fixed parameter
> > > >
> > > > So it's a bit shorter and beneath that you save
> > a global
> > > > variable.
> > > >
> > > > Sure, will change it.
> > > >
> > > > >
> > > > > On Sat, Dec 28, 2019 at 8:50 PM Christian
> Mauderer
> > > > <list at c-mauderer.de <mailto:list at c-mauderer.de>
> > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> > > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>
> > > > > <mailto:list at c-mauderer.de
> > <mailto:list at c-mauderer.de>
> > > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>
> > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>
> > > <mailto:list at c-mauderer.de <mailto:list at c-mauderer.de>>>>>
> > > > wrote:
> > > > >
> > > > > On 28/12/2019 14:10, G S Niteesh wrote:
> > > > > > The patch updates the older console
> > interface used
> > > > by the BSP,
> > > > > > to newer one. It also replaces the custom
> > > > usart(PL011) driver
> > > > > > with arm-pl011. The fb function's
> > signatures where
> > > > also changed
> > > > > > to accommodate with interface update.
> > > > > > Update #3034
> > > > > > ---
> > > > > >
> > bsps/arm/raspberrypi/console/console-config.c
> > > | 62
> > > > ++++----
> > > > > >
> > bsps/arm/raspberrypi/console/console_select.c
> > > | 68
> > > > ++-------
> > > > > > bsps/arm/raspberrypi/console/fbcons.c
> >
> > > | 71
> > > > ++++-----
> > > > > > bsps/arm/raspberrypi/console/usart.c
> >
> > > | 142
> > > > > ------------------
> > > > > >
> > bsps/arm/raspberrypi/include/bsp/fbcons.h
> > > | 19 ++-
> > > > > >
> > .../arm/raspberrypi/include/bsp/raspberrypi.h
> > > | 70
> > > > +++++----
> > > > > >
> > bsps/arm/raspberrypi/include/bsp/usart.h
> > > | 5 +-
> > > > > >
> > c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> > > | 5 +-
> > > > > > 8 files changed, 136 insertions(+), 306
> > > deletions(-)
> > > > > >
> > > > > > diff --git
> > > > a/bsps/arm/raspberrypi/console/console-config.c
> > > > >
> > b/bsps/arm/raspberrypi/console/console-config.c
> > > > > > index d2186c918b..f479e19d99 100644
> > > > > > ---
> > > a/bsps/arm/raspberrypi/console/console-config.c
> > > > > > +++
> > > b/bsps/arm/raspberrypi/console/console-config.c
> > > > > > @@ -22,45 +22,47 @@
> > > > > >
> > > > > > #include <libchip/serial.h>
> > > > > >
> > > > > > -#include <bspopts.h>
> > > > > > -#include <bsp/irq.h>
> > > > > > -#include <bsp/usart.h>
> > > > > > +#include <bsp.h>
> > > > > > #include <bsp/raspberrypi.h>
> > > > > > +#include <bsp/usart.h>
> > > > > > +#include <bsp/arm-pl011.h>
> > > > > > #include <bsp/fbcons.h>
> > > > > > +#include <bsp/console-termios.h>
> > > > > > +
> > > > > > +#include <bspopts.h>
> > > > > >
> > > > > > -console_tbl Console_Configuration_Ports
> > [] = {
> > > > > > - {
> > > > > > - .sDeviceName = "/dev/ttyS0",
> > > > > > - .deviceType = SERIAL_CUSTOM,
> > > > > > - .pDeviceFns = &bcm2835_usart_fns,
> > > > > > - .deviceProbe = NULL,
> > > > > > - .pDeviceFlow = NULL,
> > > > > > - .ulCtrlPort1 = BCM2835_UART0_BASE,
> > > > > > - .ulCtrlPort2 = 0,
> > > > > > - .ulClock = USART0_DEFAULT_BAUD,
> > > > > > - .ulIntVector = BCM2835_IRQ_ID_UART
> > > > > > - },
> > > > > > - {
> > > > > > - .sDeviceName ="/dev/fbcons",
> > > > > > - .deviceType = SERIAL_CUSTOM,
> > > > > > - .pDeviceFns = &fbcons_fns,
> > > > > > - .deviceProbe = fbcons_probe,
> > > > > > - .pDeviceFlow = NULL,
> > > > > > - },
> > > > > > +arm_pl011_context pl011_context = {
> > > > > > + .base =
> > > >
> RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("PL011"),
> > > > > > + .regs = (volatile pl011 *)
> > BCM2835_PL011_BASE,
> > > > > > + .initial_baud = PL011_DEFAULT_BAUD
> > > > > > };
> > > > > >
> > > > > > -#define PORT_COUNT \
> > > > > > - (sizeof(Console_Configuration_Ports) \
> > > > > > - /
> > sizeof(Console_Configuration_Ports [0]))
> > > > > > +rpi_fb_context fb_context = {
> > > > > > + .base =
> > > > RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("FB")
> > > > > > +};
> > > > > > +
> > > > > > +const console_device
> > console_device_table[] = {
> > > > > > + {
> > > > > > + .device_file = "/dev/ttyS0",
> > > > > > + .probe =
> console_device_probe_default,
> > > > > > + .handler = &arm_pl011_fns,
> > > > > > + .context = &pl011_context.base
> > > > > > + },
> > > > > > + {
> > > > > > + .device_file = "/dev/fbcons",
> > > > > > + .probe = fbcons_probe,
> > > > > > + .handler = &fbcons_fns,
> > > > > > + .context = &fb_context.base
> > > > > > + }
> > > > > > +};
> > > > > >
> > > > > > -unsigned long
> Console_Configuration_Count =
> > > PORT_COUNT;
> > > > > > +const size_t console_device_count =
> > > > > RTEMS_ARRAY_SIZE(console_device_table);
> > > > > >
> > > > > > static void output_char(char c)
> > > > > > {
> > > > > > - const console_fns *con =
> > > > > > - Console_Configuration_Ports
> > > > [Console_Port_Minor].pDeviceFns;
> > > > > > -
> > > > > > - con->deviceWritePolled((int)
> > > Console_Port_Minor, c);
> > > > > > + const console_device *dev =
> > > > &console_device_table[console_select];
> > > > > > + rtems_termios_device_context *con =
> > > dev->context;
> > > > > > + console_instance(con, c);
> > > > > > }
> > > > >
> > > > > I'm still not happy with that. What I had
> in
> > > mind was
> > > > more or less:
> > > > >
> > > > >
> > > > > static void output_char_serial(char c)
> > > > > {
> > > > >
> > arm_pl011_write_polled(&pl011_context.base, c);
> > > > > }
> > > > >
> > > > > static void output_char_fb(char c)
> > > > > {
> > > > > fbcons_write_polled(&fb_context.base, c);
> > > > > }
> > > > >
> > > > > BSP_output_char_function_type
> > BSP_output_char =
> > > > output_char_serial;
> > > > >
> > > > >
> > > > > And if you decide that the frame buffer
> should
> > > be used
> > > > in the select
> > > > > function you do a
> > > > >
> > > > > BSP_output_char = output_char_fb;
> > > > >
> > > > > >
> > > > > > BSP_output_char_function_type
> > BSP_output_char =
> > > > output_char;
> > > > > > diff --git
> > > > a/bsps/arm/raspberrypi/console/console_select.c
> > > > >
> > b/bsps/arm/raspberrypi/console/console_select.c
> > > > > > index bd246ca868..ea3325266f 100644
> > > > > > ---
> > > a/bsps/arm/raspberrypi/console/console_select.c
> > > > > > +++
> > > b/bsps/arm/raspberrypi/console/console_select.c
> > > > > > @@ -15,69 +15,40 @@
> > > > > > *
> http://www.rtems.org/license/LICENSE
> > > > > > *
> > > > > > */
> > > > > > -
> > > > > > #include <bsp.h>
> > > > > > +#include <bsp/raspberrypi.h>
> > > > > > +#include <bsp/arm-pl011.h>
> > > > > > +#include <bsp/fbcons.h>
> > > > > > +#include <bsp/rpi-fb.h>
> > > > > > #include <bsp/fatal.h>
> > > > > > +#include <bsp/console-termios.h>
> > > > > > +
> > > > > > #include <rtems/libio.h>
> > > > > > #include <stdlib.h>
> > > > > > #include <string.h>
> > > > > > #include <assert.h>
> > > > > > #include <termios.h>
> > > > > >
> > > > > > -#include <rtems/termiostypes.h>
> > > > > > #include <libchip/serial.h>
> > > > > > -#include
> > > "../../shared/dev/serial/legacy-console.h"
> > > > > > -#include <bsp/rpi-fb.h>
> > > > > >
> > > > > > -rtems_device_minor_number BSPPrintkPort
> > = 0;
> > > > > > +int console_select = PL011;
> > > > > > +console console_instance =
> > > arm_pl011_write_polled;
> > > > > >
> > > > > > -/*
> > > > > > - * Method to return true if the device
> > associated
> > > > with the
> > > > > > - * minor number probs available.
> > > > > > - */
> > > > > > -static bool bsp_Is_Available(
> > > > rtems_device_minor_number minor )
> > > > > > +static bool bsp_Is_Available( int index
> )
> > > > > > {
> > > > > > - console_tbl *cptr = Console_Port_Tbl[
> > minor ];
> > > > > > -
> > > > > > + const console_device *dev =
> > > > &console_device_table[index];
> > > > > > + rtems_termios_device_context *con =
> > > dev->context;
> > > > > > /*
> > > > > > * First perform the configuration
> > dependent
> > > > probe, then the
> > > > > > * device dependent probe
> > > > > > */
> > > > > > - if ( ( !cptr->deviceProbe ||
> > cptr->deviceProbe(
> > > > minor ) ) &&
> > > > > > - cptr->pDeviceFns->deviceProbe(
> > minor ) ) {
> > > > > > + if ( ( !dev->probe || dev->probe( con
> > ) ) ){
> > > > > > return true;
> > > > > > }
> > > > > >
> > > > > > return false;
> > > > > > }
> > > > > >
> > > > > > -/*
> > > > > > - * Method to return the first available
> > device.
> > > > > > - */
> > > > > > -static rtems_device_minor_number
> > > > bsp_First_Available_Device( void )
> > > > > > -{
> > > > > > - rtems_device_minor_number minor;
> > > > > > -
> > > > > > - for ( minor = 0; minor <
> > Console_Port_Count;
> > > > minor++ ) {
> > > > > > - console_tbl *cptr =
> Console_Port_Tbl[
> > > minor ];
> > > > > > -
> > > > > > - /*
> > > > > > - * First perform the configuration
> > dependent
> > > > probe, then the
> > > > > > - * device dependent probe
> > > > > > - */
> > > > > > -
> > > > > > - if ( ( !cptr->deviceProbe ||
> > > cptr->deviceProbe(
> > > > minor ) ) &&
> > > > > > - cptr->pDeviceFns->deviceProbe(
> > minor
> > > ) ) {
> > > > > > - return minor;
> > > > > > - }
> > > > > > - }
> > > > > > -
> > > > > > - /*
> > > > > > - * Error No devices were found. We
> will
> > > want to
> > > > bail here.
> > > > > > - */
> > > > > > - bsp_fatal( BSP_FATAL_CONSOLE_NO_DEV );
> > > > > > -}
> > > > > > -
> > > > > > void bsp_console_select( void )
> > > > > > {
> > > > > > /*
> > > > > > @@ -90,25 +61,18 @@ void
> bsp_console_select(
> > > void )
> > > > > > */
> > > > > > const char *opt;
> > > > > >
> > > > > > - Console_Port_Minor =
> BSP_CONSOLE_UART0;
> > > > > > - BSPPrintkPort = BSP_CONSOLE_UART0;
> > > > > > -
> > > > > > opt = rpi_cmdline_get_arg(
> > "--console=" );
> > > > > >
> > > > > > if ( opt ) {
> > > > > > if ( strncmp( opt, "fbcons", sizeof(
> > > "fbcons" )
> > > > - 1 ) == 0 ) {
> > > > > > if ( rpi_video_is_initialized() >
> > 0 ) {
> > > > > > - Console_Port_Minor =
> > BSP_CONSOLE_FB;
> > > > > > - BSPPrintkPort = BSP_CONSOLE_FB;
> > > > > > + console_select = FB;
> > > > > > + console_instance =
> > fbcons_write_polled;
> > > > > > }
> > > > > > }
> > > > > > }
> > > > > >
> > > > > > - /*
> > > > > > - * If the device that was selected
> isn't
> > > > available then
> > > > > > - * let the user know and select the
> first
> > > > available device.
> > > > > > - */
> > > > > > - if ( !bsp_Is_Available(
> > Console_Port_Minor
> > > ) ) {
> > > > > > - Console_Port_Minor =
> > > bsp_First_Available_Device();
> > > > > > + if( !bsp_Is_Available( console_select
> > ) ){
> > > > > > + bsp_fatal( BSP_FATAL_CONSOLE_NO_DEV
> );
> > > > > > }
> > > > > > }
> > > > > > diff --git
> > a/bsps/arm/raspberrypi/console/fbcons.c
> > > > > b/bsps/arm/raspberrypi/console/fbcons.c
> > > > > > index 3669ba458d..6e710e252d 100644
> > > > > > ---
> a/bsps/arm/raspberrypi/console/fbcons.c
> > > > > > +++
> b/bsps/arm/raspberrypi/console/fbcons.c
> > > > > > @@ -18,6 +18,7 @@
> > > > > >
> > > > > > #include <rtems.h>
> > > > > > #include <rtems/libio.h>
> > > > > > +#include <rtems/termiostypes.h>
> > > > > >
> > > > > > #include <stdlib.h>
> > > > > >
> > > > > > @@ -29,15 +30,6 @@
> > > > > > #include <bsp/vc.h>
> > > > > > #include <bsp/rpi-fb.h>
> > > > > >
> > > > > > -/*
> > > > > > - * fbcons_init
> > > > > > - *
> > > > > > - * This function initializes the fb
> > console to a
> > > > quiecsent state.
> > > > > > - */
> > > > > > -static void fbcons_init( int minor )
> > > > > > -{
> > > > > > -}
> > > > > > -
> > > > > > /*
> > > > > > * fbcons_open
> > > > > > *
> > > > > > @@ -45,13 +37,14 @@ static void
> fbcons_init(
> > > int minor )
> > > > > > *
> > > > > > * Default state is 9600 baud, 8 bits,
> No
> > > parity,
> > > > and 1 stop bit.
> > > > > > */
> > > > > > -static int fbcons_open(
> > > > > > - int major,
> > > > > > - int minor,
> > > > > > - void *arg
> > > > > > +static bool fbcons_open(
> > > > > > + struct rtems_termios_tty *tty,
> > > > > > + rtems_termios_device_context *base,
> > > > > > + struct termios *term,
> > > > > > + rtems_libio_open_close_args_t *args
> > > > > > )
> > > > > > {
> > > > > > - return RTEMS_SUCCESSFUL;
> > > > > > + return true;
> > > > > > }
> > > > > >
> > > > > > /*
> > > > > > @@ -59,13 +52,12 @@ static int
> fbcons_open(
> > > > > > *
> > > > > > * This function shuts down the
> > requested port.
> > > > > > */
> > > > > > -static int fbcons_close(
> > > > > > - int major,
> > > > > > - int minor,
> > > > > > - void *arg
> > > > > > +static void fbcons_close(
> > > > > > + struct rtems_termios_tty *tty,
> > > > > > + rtems_termios_device_context *base,
> > > > > > + rtems_libio_open_close_args_t *args
> > > > > > )
> > > > > > {
> > > > > > - return ( RTEMS_SUCCESSFUL );
> > > > > > }
> > > > > >
> > > > > > /*
> > > > > > @@ -73,8 +65,8 @@ static int
> fbcons_close(
> > > > > > *
> > > > > > * This routine polls out the requested
> > > character.
> > > > > > */
> > > > > > -static void fbcons_write_polled(
> > > > > > - int minor,
> > > > > > +void fbcons_write_polled(
> > > > > > + rtems_termios_device_context *base,
> > > > > > char c
> > > > > > )
> > > > > > {
> > > > > > @@ -91,7 +83,7 @@ static void
> > fbcons_write_polled(
> > > > > > *
> > > > > > */
> > > > > > static ssize_t
> fbcons_write_support_polled(
> > > > > > - int minor,
> > > > > > + rtems_termios_device_context *base,
> > > > > > const char *buf,
> > > > > > size_t len
> > > > > > )
> > > > > > @@ -102,7 +94,7 @@ static ssize_t
> > > > fbcons_write_support_polled(
> > > > > > * poll each byte in the string out
> > of the
> > > port.
> > > > > > */
> > > > > > while ( nwrite < len ) {
> > > > > > - fbcons_write_polled( minor, *buf++
> );
> > > > > > + fbcons_write_polled( base, *buf++ );
> > > > > > nwrite++;
> > > > > > }
> > > > > >
> > > > > > @@ -117,7 +109,9 @@ static ssize_t
> > > > fbcons_write_support_polled(
> > > > > > *
> > > > > > * Console Termios polling input entry
> > point.
> > > > > > */
> > > > > > -static int
> > fbcons_inbyte_nonblocking_polled( int
> > > > minor )
> > > > > > +int fbcons_inbyte_nonblocking_polled(
> > > > > > + rtems_termios_device_context *base
> > > > > > +)
> > > > > > {
> > > > > > // if( rtems_kbpoll() ) {
> > > > > > // int c = getch();
> > > > > > @@ -133,15 +127,17 @@ static int
> > > > fbcons_inbyte_nonblocking_polled(
> > > > > int minor )
> > > > > > * This function sets the UART channel
> to
> > > reflect
> > > > the requested
> > > > > termios
> > > > > > * port settings.
> > > > > > */
> > > > > > -static int fbcons_set_attributes(
> > > > > > - int minor,
> > > > > > +static bool fbcons_set_attributes(
> > > > > > + rtems_termios_device_context *base,
> > > > > > const struct termios *t
> > > > > > )
> > > > > > {
> > > > > > - return 0;
> > > > > > + return true;
> > > > > > }
> > > > > >
> > > > > > -bool fbcons_probe( int minor )
> > > > > > +bool fbcons_probe(
> > > > > > + rtems_termios_device_context *context
> > > > > > +)
> > > > > > {
> > > > > > // rtems_status_code status;
> > > > > > static bool firstTime = true;
> > > > > > @@ -163,15 +159,12 @@ bool fbcons_probe(
> int
> > > minor )
> > > > > > return ret;
> > > > > > }
> > > > > >
> > > > > > -const console_fns fbcons_fns =
> > > > > > +const rtems_termios_device_handler
> > fbcons_fns =
> > > > > > {
> > > > > > - .deviceProbe =
> > libchip_serial_default_probe,
> > > > /* deviceProbe */
> > > > > > - .deviceFirstOpen = fbcons_open,
> >
> > > /*
> > > > > deviceFirstOpen */
> > > > > > - .deviceLastClose = fbcons_close,
> >
> > > /*
> > > > > deviceLastClose */
> > > > > > - .deviceRead =
> > fbcons_inbyte_nonblocking_polled,
> > > > /* deviceRead */
> > > > > > - .deviceWrite =
> > fbcons_write_support_polled,
> > > > /* deviceWrite */
> > > > > > - .deviceInitialize = fbcons_init,
> >
> > > /*
> > > > > deviceInitialize */
> > > > > > - .deviceWritePolled =
> > fbcons_write_polled,
> > > /*
> > > > > deviceWritePolled */
> > > > > > - .deviceSetAttributes =
> > > fbcons_set_attributes, /*
> > > > > deviceSetAttributes */
> > > > > > - .deviceOutputUsesInterrupts = FALSE,
> >
> > > /*
> > > > > deviceOutputUsesInterrupts*/
> > > > > > -};
> > > > > > + .first_open = fbcons_open,
> > > > > > + .last_close = fbcons_close,
> > > > > > + .poll_read =
> > fbcons_inbyte_nonblocking_polled,
> > > > > > + .write = (void
> > (*)(rtems_termios_device_context
> > > > *, const char
> > > > > *, size_t))fbcons_write_support_polled,
> > > > > > + .set_attributes =
> fbcons_set_attributes,
> > > > > > + .mode = TERMIOS_POLLED
> > > > > > +};
> > > > > > \ No newline at end of file
> > > > > > diff --git
> > a/bsps/arm/raspberrypi/console/usart.c
> > > > > b/bsps/arm/raspberrypi/console/usart.c
> > > > > > index 25fb523621..471d0c553f 100644
> > > > > > ---
> a/bsps/arm/raspberrypi/console/usart.c
> > > > > > +++
> b/bsps/arm/raspberrypi/console/usart.c
> > > > > > @@ -23,145 +23,3 @@
> > > > > > #include <bsp/usart.h>
> > > > > > #include <bsp/raspberrypi.h>
> > > > > > #include <rtems/bspIo.h>
> > > > > > -
> > > > > > -static void usart_delay(uint32_t n)
> > > > > > -{
> > > > > > - volatile uint32_t i = 0;
> > > > > > -
> > > > > > - for(i = 0; i < n; i++)
> > > > > > - ;
> > > > > > -}
> > > > > > -
> > > > > > -#if 0
> > > > > > -/*
> > > > > > - * These will be useful when the
> > driver supports
> > > > interrupt
> > > > > driven IO.
> > > > > > - */
> > > > > > -static rtems_vector_number
> > > > usart_get_irq_number(const console_tbl
> > > > > *ct)
> > > > > > -{
> > > > > > - return ct->ulIntVector;
> > > > > > -}
> > > > > > -
> > > > > > -static uint32_t usart_get_baud(const
> > > console_tbl *ct)
> > > > > > -{
> > > > > > - return ct->ulClock;
> > > > > > -}
> > > > > > -#endif
> > > > > > -
> > > > > > -static void usart_set_baud(int minor,
> > int baud)
> > > > > > -{
> > > > > > - /*
> > > > > > - * Nothing for now
> > > > > > - */
> > > > > > - return;
> > > > > > -}
> > > > > > -
> > > > > > -static void usart_initialize(int minor)
> > > > > > -{
> > > > > > - unsigned int gpio_reg;
> > > > > > -
> > > > > > - /*
> > > > > > - ** Program GPIO pins for UART 0
> > > > > > - */
> > > > > > - gpio_reg =
> > BCM2835_REG(BCM2835_GPIO_GPFSEL1);
> > > > > > - gpio_reg &= ~(7<<12); /* gpio14 */
> > > > > > - gpio_reg |= (4<<12); /* alt0 */
> > > > > > - gpio_reg &= ~(7<<15); /* gpio15 */
> > > > > > - gpio_reg |= (4<<15); /* alt0 */
> > > > > > - BCM2835_REG(BCM2835_GPIO_GPFSEL1) =
> > gpio_reg;
> > > > > > -
> > > > > > - BCM2835_REG(BCM2835_GPIO_GPPUD) = 0;
> > > > > > - usart_delay(150);
> > > > > > - BCM2835_REG(BCM2835_GPIO_GPPUDCLK0) =
> > > > (1<<14)|(1<<15);
> > > > > > - usart_delay(150);
> > > > > > - BCM2835_REG(BCM2835_GPIO_GPPUDCLK0) =
> 0;
> > > > > > -
> > > > > > - /*
> > > > > > - ** Init the PL011 UART
> > > > > > - */
> > > > > > - BCM2835_REG(BCM2835_UART0_CR) = 0;
> > > > > > - BCM2835_REG(BCM2835_UART0_ICR) =
> 0x7FF;
> > > > > > - BCM2835_REG(BCM2835_UART0_IMSC) = 0;
> > > > > > - BCM2835_REG(BCM2835_UART0_IBRD) = 1;
> > > > > > - BCM2835_REG(BCM2835_UART0_FBRD) = 40;
> > > > > > - BCM2835_REG(BCM2835_UART0_LCRH) =
> 0x70;
> > > > > > - BCM2835_REG(BCM2835_UART0_RSRECR) =
> 0;
> > > > > > -
> > > > > > - BCM2835_REG(BCM2835_UART0_CR) =
> 0x301;
> > > > > > -
> > > > > > - BCM2835_REG(BCM2835_UART0_IMSC) =
> > > > BCM2835_UART0_IMSC_RX;
> > > > > > -
> > > > > > - usart_set_baud(minor, 115000);
> > > > > > -}
> > > > > > -
> > > > > > -static int usart_first_open(int major,
> > int minor,
> > > > void *arg)
> > > > > > -{
> > > > > > - rtems_libio_open_close_args_t *oc =
> > > > > (rtems_libio_open_close_args_t *) arg;
> > > > > > - struct rtems_termios_tty *tty =
> (struct
> > > > rtems_termios_tty *)
> > > > > oc->iop->data1;
> > > > > > - const console_tbl *ct =
> Console_Port_Tbl
> > > [minor];
> > > > > > - console_data *cd = &Console_Port_Data
> > [minor];
> > > > > > -
> > > > > > - cd->termios_data = tty;
> > > > > > - rtems_termios_set_initial_baud(tty,
> > > ct->ulClock);
> > > > > > -
> > > > > > - return 0;
> > > > > > -}
> > > > > > -
> > > > > > -static int usart_last_close(int major,
> > int minor,
> > > > void *arg)
> > > > > > -{
> > > > > > - return 0;
> > > > > > -}
> > > > > > -
> > > > > > -static int usart_read_polled(int minor)
> > > > > > -{
> > > > > > - if (minor == 0) {
> > > > > > - if
> (((BCM2835_REG(BCM2835_UART0_FR)) &
> > > > BCM2835_UART0_FR_RXFE)
> > > > > == 0) {
> > > > > > -
> > return((BCM2835_REG(BCM2835_UART0_DR))
> > > & 0xFF );
> > > > > > - } else {
> > > > > > - return -1;
> > > > > > - }
> > > > > > - } else {
> > > > > > - printk("Unknown console minor
> > number: %d\n",
> > > > minor);
> > > > > > - return -1;
> > > > > > - }
> > > > > > -}
> > > > > > -
> > > > > > -static void usart_write_polled(int
> > minor, char c)
> > > > > > -{
> > > > > > - while (1) {
> > > > > > - if ((BCM2835_REG(BCM2835_UART0_FR)
> &
> > > > BCM2835_UART0_FR_TXFF)
> > > > > == 0)
> > > > > > - break;
> > > > > > - }
> > > > > > - BCM2835_REG(BCM2835_UART0_DR) = c;
> > > > > > -}
> > > > > > -
> > > > > > -static ssize_t
> usart_write_support_polled(
> > > > > > - int minor,
> > > > > > - const char *s,
> > > > > > - size_t n
> > > > > > -)
> > > > > > -{
> > > > > > - ssize_t i = 0;
> > > > > > -
> > > > > > - for (i = 0; i < n; ++i) {
> > > > > > - usart_write_polled(minor, s [i]);
> > > > > > - }
> > > > > > -
> > > > > > - return n;
> > > > > > -}
> > > > > > -
> > > > > > -static int usart_set_attributes(int
> > minor, const
> > > > struct termios
> > > > > *term)
> > > > > > -{
> > > > > > - return -1;
> > > > > > -}
> > > > > > -
> > > > > > -const console_fns bcm2835_usart_fns = {
> > > > > > - .deviceProbe =
> > libchip_serial_default_probe,
> > > > > > - .deviceFirstOpen = usart_first_open,
> > > > > > - .deviceLastClose = usart_last_close,
> > > > > > - .deviceRead = usart_read_polled,
> > > > > > - .deviceWrite =
> > usart_write_support_polled,
> > > > > > - .deviceInitialize = usart_initialize,
> > > > > > - .deviceWritePolled =
> usart_write_polled,
> > > > > > - .deviceSetAttributes =
> > usart_set_attributes,
> > > > > > - .deviceOutputUsesInterrupts = false
> > > > > > -};
> > > > > > diff --git
> > > a/bsps/arm/raspberrypi/include/bsp/fbcons.h
> > > > > b/bsps/arm/raspberrypi/include/bsp/fbcons.h
> > > > > > index d0e126699a..e3d9e69ff5 100644
> > > > > > ---
> > a/bsps/arm/raspberrypi/include/bsp/fbcons.h
> > > > > > +++
> > b/bsps/arm/raspberrypi/include/bsp/fbcons.h
> > > > > > @@ -33,12 +33,27 @@ extern "C" {
> > > > > >
> > > > > > #define FB_CONSOLE 0x50492835
> > > > > >
> > > > > > -bool fbcons_probe( int minor );
> > > > > > +bool fbcons_probe(
> > > > > > + rtems_termios_device_context *base
> > > > > > + );
> > > > > > +
> > > > > > +void fbcons_write_polled(
> > > > > > + rtems_termios_device_context *base,
> > > > > > + char c
> > > > > > +);
> > > > > > +
> > > > > > +int fbcons_inbyte_nonblocking_polled(
> > > > > > + rtems_termios_device_context *base
> > > > > > +);
> > > > > > +
> > > > > > +typedef struct {
> > > > > > + rtems_termios_device_context base;
> > > > > > +} rpi_fb_context ;
> > > > > >
> > > > > > /*
> > > > > > * Driver function table
> > > > > > */
> > > > > > -extern const console_fns fbcons_fns;
> > > > > > +extern const
> rtems_termios_device_handler
> > > fbcons_fns;
> > > > > >
> > > > > > #ifdef __cplusplus
> > > > > > }
> > > > > > diff --git
> > > > a/bsps/arm/raspberrypi/include/bsp/raspberrypi.h
> > > > >
> > b/bsps/arm/raspberrypi/include/bsp/raspberrypi.h
> > > > > > index 40c80cf408..2ccc49846c 100644
> > > > > > ---
> > > a/bsps/arm/raspberrypi/include/bsp/raspberrypi.h
> > > > > > +++
> > > b/bsps/arm/raspberrypi/include/bsp/raspberrypi.h
> > > > > > @@ -24,6 +24,7 @@
> > > > > > #include <bspopts.h>
> > > > > > #include <stdint.h>
> > > > > > #include <bsp/utility.h>
> > > > > > +#include <rtems/termiostypes.h>
> > > > > >
> > > > > > /**
> > > > > > * @defgroup raspberrypi_reg Register
> > Definitions
> > > > > > @@ -60,6 +61,39 @@
> > > > > >
> > > > > > #define RPI_PERIPHERAL_SIZE
> > 0x01000000
> > > > > >
> > > > > > +/**
> > > > > > + * @name Console select definitions
> > > > > > + *
> > > > > > + * @{
> > > > > > + */
> > > > > > +
> > > > > > +#define PL011 0
> > > > > > +#define FB 1
> > > > > > +
> > > > > > +/** @} */
> > > > > > +
> > > > > > +/**
> > > > > > + * @name Console select
> > > > > > + *
> > > > > > + * @{
> > > > > > + */
> > > > > > +
> > > > > > +extern int console_select;
> > > > > > +
> > > > > > +/** @} */
> > > > > > +
> > > > > > +/**
> > > > > > + * @name Console select
> > > > > > + *
> > > > > > + * @{
> > > > > > + */
> > > > > > +
> > > > > > +typedef void
> > > > (*console)(rtems_termios_device_context *, char
> c);
> > > > > > +extern console console_instance;
> > > > > > +
> > > > > > +/** @} */
> > > > > > +
> > > > > > +/** @} */
> > > > > > /**
> > > > > > * @name Internal ARM Timer Registers
> > > > > > *
> > > > > > @@ -184,42 +218,6 @@
> > > > > >
> > > > > > /** @} */
> > > > > >
> > > > > > -/**
> > > > > > - * @name UART 0 (PL011) Registers
> > > > > > - *
> > > > > > - * @{
> > > > > > - */
> > > > > > -
> > > > > > -#define BCM2835_UART0_BASE
> > > > (RPI_PERIPHERAL_BASE + 0x201000)
> > > > > > -
> > > > > > -#define BCM2835_UART0_DR
> > > > (BCM2835_UART0_BASE + 0x00)
> > > > > > -#define BCM2835_UART0_RSRECR
> > > > (BCM2835_UART0_BASE + 0x04)
> > > > > > -#define BCM2835_UART0_FR
> > > > (BCM2835_UART0_BASE + 0x18)
> > > > > > -#define BCM2835_UART0_ILPR
> > > > (BCM2835_UART0_BASE + 0x20)
> > > > > > -#define BCM2835_UART0_IBRD
> > > > (BCM2835_UART0_BASE + 0x24)
> > > > > > -#define BCM2835_UART0_FBRD
> > > > (BCM2835_UART0_BASE + 0x28)
> > > > > > -#define BCM2835_UART0_LCRH
> > > > (BCM2835_UART0_BASE + 0x2C)
> > > > > > -#define BCM2835_UART0_CR
> > > > (BCM2835_UART0_BASE + 0x30)
> > > > > > -#define BCM2835_UART0_IFLS
> > > > (BCM2835_UART0_BASE + 0x34)
> > > > > > -#define BCM2835_UART0_IMSC
> > > > (BCM2835_UART0_BASE + 0x38)
> > > > > > -#define BCM2835_UART0_RIS
> > > > (BCM2835_UART0_BASE + 0x3C)
> > > > > > -#define BCM2835_UART0_MIS
> > > > (BCM2835_UART0_BASE + 0x40)
> > > > > > -#define BCM2835_UART0_ICR
> > > > (BCM2835_UART0_BASE + 0x44)
> > > > > > -#define BCM2835_UART0_DMACR
> > > > (BCM2835_UART0_BASE + 0x48)
> > > > > > -#define BCM2835_UART0_ITCR
> > > > (BCM2835_UART0_BASE + 0x80)
> > > > > > -#define BCM2835_UART0_ITIP
> > > > (BCM2835_UART0_BASE + 0x84)
> > > > > > -#define BCM2835_UART0_ITOP
> > > > (BCM2835_UART0_BASE + 0x88)
> > > > > > -#define BCM2835_UART0_TDR
> > > > (BCM2835_UART0_BASE + 0x8C)
> > > > > > -
> > > > > > -#define BCM2835_UART0_MIS_RX 0x10
> > > > > > -#define BCM2835_UART0_MIS_TX 0x20
> > > > > > -#define BCM2835_UART0_IMSC_RX 0x10
> > > > > > -#define BCM2835_UART0_IMSC_TX 0x20
> > > > > > -#define BCM2835_UART0_FR_RXFE 0x10
> > > > > > -#define BCM2835_UART0_FR_TXFF 0x20
> > > > > > -#define BCM2835_UART0_ICR_RX 0x10
> > > > > > -#define BCM2835_UART0_ICR_TX 0x20
> > > > > > -
> > > > > > /** @} */
> > > > > >
> > > > > > /**
> > > > > > diff --git
> > > a/bsps/arm/raspberrypi/include/bsp/usart.h
> > > > > b/bsps/arm/raspberrypi/include/bsp/usart.h
> > > > > > index d3e710c5e9..abbf53626c 100644
> > > > > > ---
> > a/bsps/arm/raspberrypi/include/bsp/usart.h
> > > > > > +++
> > b/bsps/arm/raspberrypi/include/bsp/usart.h
> > > > > > @@ -32,9 +32,8 @@
> > > > > > extern "C" {
> > > > > > #endif /* __cplusplus */
> > > > > >
> > > > > > -#define USART0_DEFAULT_BAUD 115000
> > > > > > -
> > > > > > -extern const console_fns
> bcm2835_usart_fns;
> > > > > > +#define PL011_DEFAULT_BAUD 115000
> > > > > > +#define BCM2835_PL011_BASE
> > (RPI_PERIPHERAL_BASE +
> > > > 0x201000)
> > > > > >
> > > > > > #ifdef __cplusplus
> > > > > > }
> > > > > > diff --git
> > > > a/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> > > > >
> b/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> > > > > > index 11a22f89e3..ce91527f92 100644
> > > > > > ---
> > a/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> > > > > > +++
> > b/c/src/lib/libbsp/arm/raspberrypi/Makefile.am
> > > > > > @@ -63,14 +63,15 @@
> librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/arm/shared/cp15/arm-cp15-set-exc
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > ../../../../../../bsps/arm/raspberrypi/irq/irq.c
> > > > > >
> > > > > > # Console
> > > > > > -librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/shared/dev/serial/legacy-console.c
> > > > > > -librtemsbsp_a_SOURCES +=
> > > > >
> > > >
> > >
> > ../../../../../../bsps/shared/dev/serial/legacy-console-control.c
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > > >
> > >
> ../../../../../../bsps/arm/raspberrypi/console/console-config.c
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > > >
> > >
> ../../../../../../bsps/arm/raspberrypi/console/console_select.c
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/arm/raspberrypi/console/usart.c
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > ../../../../../../bsps/arm/raspberrypi/console/fb.c
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/arm/raspberrypi/console/fbcons.c
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/arm/raspberrypi/console/outch.c
> > > > > > +librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/shared/dev/serial/console-termios.c
> > > > > > +librtemsbsp_a_SOURCES +=
> > > > >
> > > >
> > >
> ../../../../../../bsps/shared/dev/serial/console-termios-init.c
> > > > > > +librtemsbsp_a_SOURCES +=
> > > > >
> > ../../../../../../bsps/arm/shared/serial/arm-pl011.c
> > > > > >
> > > > > > # Mailbox
> > > > > > librtemsbsp_a_SOURCES +=
> > > > >
> > > ../../../../../../bsps/arm/raspberrypi/start/mailbox.c
> > > > > >
> > > > >
> > > >
> > >
> >
>
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