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This patch is a part of the BSP source reorganization.
Update #3285.
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The BSP_output_char should output a char and not mingle with high level
processing, e.g. '\n' to '\r\n' translation. Move this translation to
rtems_putc(). Remove it from all the BSP_output_char implementations.
Close #3122.
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Also use the const qualifier on the address pointer's target in in_*()
Closes #2128
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Termios notifies now the driver about an inactive transmit with the
length argument set to zero.
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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* shared/console/uart.c: In IRQ driven mode also
keep reading chars while they are available (fifo
could be enabled).
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* shared/console/console.c, shared/console/uart.c,
shared/console/uart.h: added support for task-driven
console.
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* shared/console/uart.c: Fix typo and spacing.
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* shared/console/uart.c: when draining UART during
initialization (wait for possible printk() activity
to finish) look at TEMT (fifo, holding-reg and shift-reg)
rather than THRE (fifo, holding-reg only). This resolved
some scrambled output issues for me.
Enhanced semantics: if BSP initializes BSPBaseBaud to a negative
value then the driver interprets the modulus as a speed value
and uses the current setting of the divisor to compute the
clock speed (BSPBaseBaud). This is useful if you have a board
that you know is initialized e.g., to 9600 but you
don't know the clock speed.
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* shared/console/uart.c: removed #define UARTDEBUG
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* mvme5500/irq/irq.h, psim/irq/irq.h, shared/console/uart.c,
shared/irq/irq.h: Renamed BSP_ISA_UART_COMx_IRQ -> BSP_UART_COMx_IRQ
(uart driver is ISA independent).
Removed ugly #ifdef mvme2100. Added test for
BSP_UART_USE_SHARED_IRQS symbol which a BSP can define to request
that the serial interrupt be shared.
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PR 779/bsp
* clock/p_clock.c, console/console.c, console/uart.c, console/uart.h,
irq/irq.c, irq/irq.h, irq/irq_init.c:
powerpc: add parameter to new exception interrupt handlers
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* Makefile.am, bootloader/misc.c, bootloader/pci.c, bootloader/pci.h,
console/console.c, console/inch.c, console/reboot.c, console/uart.c,
console/uart.h, irq/irq.c, irq/irq.h, irq/irq_init.c,
motorola/motorola.c, motorola/motorola.h, openpic/openpic.c,
openpic/openpic.h, pci/detect_raven_bridge.c, pci/pci.c,
start/start.S, startup/bspstart.c, vectors/vectors_init.c,
vme/vmeconfig.c: Add MVME2100 BSP and MPC8240 support. There was also
a significant amount of spelling and whitespace cleanup.
* tod/todcfg.c: New file.
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PR 379/bsps
* console/polled_io.c: libcpu provides 'printk' already.
Therefore, the implementation in this file was removed (still
used for the bootloader, though). It now provides BSP_output_char()
for libcpu's printk().
* console/uart.c, console/uart.h: BSP_output_char_via_serial()
prototype changed to match the BSP_output_char_function_type. Note
that the motorola BSPs use polled-io for the output_char routine, not
the uart.c version. The latter can be used be other BSPs however
(e.g. SVGM).
* console/console.c, console/consoleIo.h, console/polled_io.c,
irq/irq_init.c, openpic/openpic.c, pci/detect_raven_bridge.c:
Unfortunately, the supported 'printk' format string subset of the
polled-io and libcpu implementations are different - hence, a few
format strings in the ppc/shared BSP were changed.
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PR 349/bsps
* console/console.c, console/uart.c, console/uart.h: implement
IOCTLs for the serial (UART) console to install/retrieve a BREAK-IRQ
callback. The callback routine (if installed) is invoked from the
UART ISR when a BREAK interrupt is detected. This can be used
e.g. to enforce a "hotkey" reboot a la vxWorks Ctrl-X (although we
use the serial line break condition) NOTE: The callback runs in
ISR context.
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* bootloader/misc.c, console/Makefile.am, console/console.c,
console/consoleIo.h, console/inch.c, console/polled_io.c,
console/uart.c, console/uart.h, include/bsp.h, irq/Makefile.am,
irq/irq.c, irq/irq.h, irq/irq_init.c, openpic/openpic.c,
openpic/openpic.h, pci/Makefile.am, pci/pci.c, pci/pci.h,
residual/Makefile.am, start/start.S, startup/bspstart.c,
vectors/vectors.S, vectors/vectors.h, vectors/vectors_init.c:
Per PR216, "libbsp/powerpc/shared" BSP has been modified considerably
with the goal to make it more flexible and reusable by other
BSPs. The main strategies were:
- eliminate hardcoded base addresses; devices use offsets
and a BSP defined base address.
- separate functionality into different files (e.g. reboot from
inch.c to reboot.c) which can be overridden by a 'derived' BSP.
- separate initialization code into separate files (e.g. PCI
bridge detection/initialization was separated from the more
generic PCI access routines), also to make it easier for
'derived' BSPs to substitute their own initialization code.
There are also a couple of enhancements and fixes:
- IRQ handling code now has a hook for attaching a VME bridge.
- OpenPIC is now explicitely initialized (polarities, senses).
Eliminated the implicit assumption on the presence of an ISA PIC.
- UART and console driver now supports more than 1 port. The current
maximum of 2 can easily be extended by enlarging a table (it
would even be easier if the ISR API was not broken by design).
- fixed polled_io.c so it correctly supports console on COM2
- fixed TLB invalidation code (start.S).
- exception handler prints a stack backtrace.
- added BSP_pciFindDevice() to scan the pci bus for a particular
vendor/device/instance.
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As part of this effort, the mpc750 libcpu code is now shared with the
ppc6xx.
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moves pieces of the pc386 bsp up to a shared level for all i386 BSPs
and modifies the i386ex BSP to use those shared pieces. Serial remote
debugging is included for both targets. Erik's notes:
There are several workarounds in it:
1) #define NEXT_GAS is hardcoded in pc386/start/start.s
2) #define NEXT_GAS is hardcoded in i386ex/start/start.s
3) #define NEW_GAS is hardcoded in pc386/start16.s
4) #undef __assert and redeclare _assert hardcoded in console.c for
both pc386 and i386ex due to my egcs1.1b ~ newlib problem. Should have
modified t-rtems.cfg ( no time )
I've tested pc386 with both video and serial consoles and GDB remote.
All work fine, except that GDB acts weird. ( re: other posting)
I hope this will work for you. It took quite some time to locate the
autoconf error. The remainder was just grunt work.
Unfortunately, I think I've unwound the removal of the IBMPCInitVideo
stuff. Sorry. I REALLY can't spend more time... I've been at this
conversion to 4.0 locally and updating the release since Sept. 8th, and
have yet to compile my network driver.... This is as much as I can do
right now.
I look forward to the next patch to really test i368ex. I did make sure
that the sample tests worked for pc386.
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