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https://github.com/ARM-software/arm-trusted-firmware.git
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be3991c0c3
The old version of the macro is deprecated.
Commit cc5859ca19 ("Multi-console: Deprecate the
`finish_console_register` macro") provides more details.
Change-Id: I3d1cdf6496db7d8e6cfbb5804f508ff46ae7e67e
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
54 lines
1.6 KiB
ArmAsm
54 lines
1.6 KiB
ArmAsm
/*
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* Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef CONSOLE_MACROS_S
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#define CONSOLE_MACROS_S
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#include <drivers/console.h>
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/*
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* This macro encapsulates the common setup that has to be done at the end of
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* a console driver's register function. It will register all of the driver's
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* callbacks in the console_t structure and initialize the flags field (by
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* default consoles are enabled for the "boot" and "crash" states, this can be
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* changed after registration with the console_set_scope() function). It ends
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* with a tail call that will include return to the caller.
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* REQUIRES console_t pointer in x0 and a valid return address in x30.
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*/
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.macro finish_console_register _driver, putc=0, getc=0, flush=0
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/*
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* If any of the callback is not specified or set as 0, then the
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* corresponding callback entry in console_t is set to 0.
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*/
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.ifne \putc
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adrp x1, console_\_driver\()_putc
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add x1, x1, :lo12:console_\_driver\()_putc
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str x1, [x0, #CONSOLE_T_PUTC]
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.else
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str xzr, [x0, #CONSOLE_T_PUTC]
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.endif
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.ifne \getc
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adrp x1, console_\_driver\()_getc
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add x1, x1, :lo12:console_\_driver\()_getc
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str x1, [x0, #CONSOLE_T_GETC]
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.else
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str xzr, [x0, #CONSOLE_T_GETC]
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.endif
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.ifne \flush
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adrp x1, console_\_driver\()_flush
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add x1, x1, :lo12:console_\_driver\()_flush
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str x1, [x0, #CONSOLE_T_FLUSH]
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.else
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str xzr, [x0, #CONSOLE_T_FLUSH]
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.endif
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mov x1, #(CONSOLE_FLAG_BOOT | CONSOLE_FLAG_CRASH)
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str x1, [x0, #CONSOLE_T_FLAGS]
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b console_register
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.endm
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#endif /* CONSOLE_MACROS_S */
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