[PATCH] Raspberrypi: updated the console interface.
Christian Mauderer
list at c-mauderer.de
Sat Dec 28 09:50:57 UTC 2019
Missed your question further below in my first mail.
On 28/12/2019 10:45, Christian Mauderer wrote:
> On 28/12/2019 09:38, Niteesh wrote:
>> I didn't get any of these warnings, which command did you use?
>
> Just the usual make in the build directory. I configured with the
> following line:
>
> /home/christian/rtems/rtems-bbb/build/..//libs/rtems/configure
> --target=arm-rtems5
> --prefix=/home/christian/rtems/rtems-bbb/build/..//install/rtems/5/
> --enable-rtemsbsp=raspberrypi --enable-maintainer-mode
> --enable-tests=samples --disable-networking
>
> Don't let the "bbb" irritate you: I hacked my normal beagle build
> environment for use with the raspberry.
>
> There are quite a lot of messages. So the warnings might are a bit
> hidden. Also note that you only get them if the file is recompiled. So
> either you have to change something or remove the console-config.o and
> fbcons.o object file to trigger them on a re-make.
>
>>
>> On Sat, Dec 28, 2019 at 3:48 AM Christian Mauderer <list at c-mauderer.de
>> <mailto:list at c-mauderer.de>> wrote:
>>
>> Hello,
>>
>> git complained about some whitespaces when applying the patch:
>>
>> ````````````
>> git am \[PATCH\]\ Raspberrypi:\ updated\ the\ console\ interface..eml
>> Applying: Raspberrypi: updated the console interface.
>> /home/christian/rtems/rtems-bbb/.git/modules/rtems/rebase-apply/patch:96:
>> trailing
>> whitespace.
>>
>> /home/christian/rtems/rtems-bbb/.git/modules/rtems/rebase-apply/patch:304:
>> trailing whitespace.
>> const rtems_termios_device_handler fbcons_fns =
>> /home/christian/rtems/rtems-bbb/.git/modules/rtems/rebase-apply/patch:481:
>> trailing whitespace.
>> bool fbcons_probe(
>> /home/christian/rtems/rtems-bbb/.git/modules/rtems/rebase-apply/patch:515:
>> trailing whitespace.
>> * @name Current Serial Device
>> warning: 4 lines add whitespace errors.
>> ````````````
>>
>> Fixed all the whitespace erros.
>>
>> When compiling I get some warnings like
>>
>> ````````````
>> /home/christian/rtems/rtems-bbb/build/..//libs/rtems/c/src/lib/libbsp/arm/raspberrypi/../../../../../../bsps/arm/raspberrypi/console/console-config.c:
>> In function 'output_char':
>> /home/christian/rtems/rtems-bbb/build/..//libs/rtems/c/src/lib/libbsp/arm/raspberrypi/../../../../../../bsps/arm/raspberrypi/console/console-config.c:64:3:
>> warning: enumeration value 'AUX_UART' not handled in switch [-Wswitch]
>> switch(SERIAL){
>> ^~~~~~
>> ````````````
>>
>> and
>>
>> ````````````
>> /home/christian/rtems/rtems-bbb/build/..//libs/rtems/c/src/lib/libbsp/arm/raspberrypi/../../../../../../bsps/arm/raspberrypi/console/fbcons.c:174:17:
>> warning: initialization from incompatible pointer type
>> [-Wincompatible-pointer-types]
>> .first_open = fbcons_open,
>> ^~~~~~~~~~~
>> ````````````
>>
>> Please fix these. I'm not entirely sure about the first warning. That
>> might has been there before. If possible it would be nice if you could
>> fix it anyway. In that case maybe in an extra commit.
>>
>> At least the PL011 works on a Pi2 on real hardware too. I haven't tested
>> the framebuffer yet. I'm still trying to find out how to select it
>> before or after the patch.
>>
>> Please see my notes in the patch below regarding some points.
>>
>> Best regards
>>
>> Christian
>>
>> On 27/12/2019 12:08, 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 functions signatures where also changed
>> > to accommodate with interface update.
>> > ---
>> > bsps/arm/raspberrypi/console/console-config.c | 67 +++++----
>> > bsps/arm/raspberrypi/console/console_select.c | 65 +-------
>> > bsps/arm/raspberrypi/console/fbcons.c | 50 +++---
>> > bsps/arm/raspberrypi/console/usart.c | 142
>> ------------------
>> > bsps/arm/raspberrypi/include/bsp/fbcons.h | 19 ++-
>> > .../arm/raspberrypi/include/bsp/raspberrypi.h | 52 ++-----
>> > bsps/arm/raspberrypi/include/bsp/usart.h | 5 +-
>> > c/src/lib/libbsp/arm/raspberrypi/Makefile.am | 5 +-
>> > 8 files changed, 105 insertions(+), 300 deletions(-)
>> >
>> > diff --git a/bsps/arm/raspberrypi/console/console-config.c
>> b/bsps/arm/raspberrypi/console/console-config.c
>> > index d2186c918b..1f6dec384a 100644
>> > --- a/bsps/arm/raspberrypi/console/console-config.c
>> > +++ b/bsps/arm/raspberrypi/console/console-config.c
>> > @@ -22,45 +22,54 @@
>> >
>> > #include <libchip/serial.h>
>> >
>> > -#include <bspopts.h>
>> > -#include <bsp/irq.h>
>> > +#include <bsp.h>
>> > #include <bsp/usart.h>
>> > #include <bsp/raspberrypi.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")
>> > +};
>> >
>> > -unsigned long Console_Configuration_Count = PORT_COUNT;
>> > +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",
>> > + // Should be changed to fbcons_probe (but it still use old
>> interface)
>>
>> What do you mean with that comment?
>>
>> I am sorry, I actually forgot to remove the comment. Previously I was
>> using default
>> probe function. But then changed it to fbcons_probe.
>>
>>
>>
>> > + .probe = fbcons_probe,
>> > + .handler = &fbcons_fns,
>> > + .context = &fb_context.base
>> > + }
>> > +};
>> > +
>> > +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);
>> > + switch(SERIAL){
>> > + case FB:
>> > + fbcons_write_polled(&fb_context.base, c);
>> > + break;
>> > + case PL011:
>> > + arm_pl011_write_polled(&pl011_context.base, c);
>> > + break;
>>
>> I don't like that selection method.
>>
>> 1. I'm not happy with that naming. It's a variable so please write it in
>> lower case. Same is true for the type CURRENT_SERIAL. It should be a
>> lower case name.
>>
>> 2. There is no default case.
>>
>> 3. This adds lot's of overhead. It means that for every character a
>> switch case has to be evaluated. BSP_output_char is a pointer so you can
>> just change it's value to point to one of two functions.
>>
>> Fixed this also. Removed the enum and switch, added a function pointer
>> to the poll function, which is then called
>> from outputchar by providing the right context.
>>
>> I modified and added the is_bsp_available, which check's if the current
>> serial is
>> available, if not throws BSP_FATAL_CONSOLE_NO_DEV.
>>
>> I was getting many warnings regarding incompatible pointer for eg: the
>> write function in the device handler
>> expects a void function, so I modified the fbcons_write_support_polled
>> to void, which was previously returning
>> the size of bytes written. Is that fine?
If it isn't used anywhere else, it's OK. But isn't that function used
for termios too?
You can also write a small wrapper function if you have to adapt
something. That adds very few overhead. If the parameters match and only
the return type should be ignored, a cast would be an alternative.
>>
>> How should I now apply this modified patch?
Add the changes to your previous patch ("git commit --amend" or "git
rebase -i") and create a version 2 ("git format-patch -v2 HEAD^") and
send that just like before with "git send-email". That will give you the
[PATCH v2] headers that you find on our mailing list.
>>
>> > + }
>> > +
>> > }
>> >
>> > 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..a7bd844bb0 100644
>> > --- a/bsps/arm/raspberrypi/console/console_select.c
>> > +++ b/bsps/arm/raspberrypi/console/console_select.c
>> > @@ -15,7 +15,7 @@
>> > * http://www.rtems.org/license/LICENSE
>> > *
>> > */
>> > -
>> > +#include <bsp/raspberrypi.h>
>> > #include <bsp.h>
>> > #include <bsp/fatal.h>
>> > #include <rtems/libio.h>
>> > @@ -24,59 +24,12 @@
>> > #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;
>> > -
>> > -/*
>> > - * Method to return true if the device associated with the
>> > - * minor number probs available.
>> > - */
>> > -static bool bsp_Is_Available( rtems_device_minor_number 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 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 );
>> > -}
>> > +CURRENT_SERIAL SERIAL = PL011;>
>> > void bsp_console_select( void )
>> > {
>> > @@ -90,25 +43,13 @@ 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;
>> > + SERIAL = FB;
>> > }
>> > }
>> > }
>> > -
>> > - /*
>> > - * 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();
>> > - }
>> > }
>> > diff --git a/bsps/arm/raspberrypi/console/fbcons.c
>> b/bsps/arm/raspberrypi/console/fbcons.c
>> > index 3669ba458d..99f2ab1aff 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>
>> >
>> > @@ -46,9 +47,10 @@ 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
>> > + struct rtems_termios_tty *tty,
>> > + rtems_termios_device_context *base,
>> > + struct termios *term,
>> > + rtems_libio_open_close_args_t *args
>> > )
>> > {
>> > return RTEMS_SUCCESSFUL;
>> > @@ -60,9 +62,9 @@ static int fbcons_open(
>> > * This function shuts down the requested port.
>> > */
>> > static int fbcons_close(
>> > - int major,
>> > - int minor,
>> > - void *arg
>> > + struct rtems_termios_tty *tty,
>> > + rtems_termios_device_context *base,
>> > + rtems_libio_open_close_args_t *args
>> > )
>> > {
>> > return ( RTEMS_SUCCESSFUL );
>> > @@ -73,8 +75,8 @@ 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 +93,7 @@ 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 +104,7 @@ 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 +119,9 @@ 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();
>> > @@ -134,14 +138,16 @@ static int fbcons_inbyte_nonblocking_polled(
>> int minor )
>> > * port settings.
>> > */
>> > static int fbcons_set_attributes(
>> > - int minor,
>> > + rtems_termios_device_context *base,
>> > const struct termios *t
>> > )
>> > {
>> > return 0;
>> > }
>> >
>> > -bool fbcons_probe( int minor )
>> > +bool fbcons_probe(
>> > + rtems_termios_device_context *base
>> > +)
>> > {
>> > // rtems_status_code status;
>> > static bool firstTime = true;
>> > @@ -163,15 +169,11 @@ 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 = fbcons_write_support_polled,
>> > + .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..85b16fafe9 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..4e5c84c741 100644
>> > --- a/bsps/arm/raspberrypi/include/bsp/raspberrypi.h
>> > +++ b/bsps/arm/raspberrypi/include/bsp/raspberrypi.h
>> > @@ -60,6 +60,22 @@
>> >
>> > #define RPI_PERIPHERAL_SIZE 0x01000000
>> >
>> > +/**
>> > + * @name Current Serial Device
>> > + *
>> > + * @{
>> > + */
>> > +
>> > +typedef enum {
>> > + PL011 = 0,
>> > + AUX_UART,
>> > + FB
>> > +}CURRENT_SERIAL;
>> > +
>> > +extern CURRENT_SERIAL SERIAL;
>> > +
>> > +/** @} */
>> > +
>> > /**
>> > * @name Internal ARM Timer Registers
>> > *
>> > @@ -184,42 +200,6 @@
>> >
>> > /** @} */
>> >
>> > -/**
>> > - * @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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