115 lines
5.0 KiB
C
115 lines
5.0 KiB
C
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//*****************************************************************************
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//
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// am_hal_global.h
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//! @file
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//!
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//! @brief Locate all HAL global variables here.
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//!
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//! This module contains global variables that are used throughout the HAL,
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//! but not necessarily those designated as const (which typically end up in
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//! flash). Consolidating globals here will make it easier to manage them.
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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// Copyright (c) 2017, Ambiq Micro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 1.2.9 of the AmbiqSuite Development Package.
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//
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//*****************************************************************************
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#ifndef AM_HAL_GLOBAL_H
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#define AM_HAL_GLOBAL_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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// Macro definitions
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//
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//*****************************************************************************
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//******************************************************************************
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//
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// Macros used to access the bit fields in the flags variable.
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//
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//******************************************************************************
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#define AM_HAL_FLAGS_BFR(flagnm) \
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((g_ui32HALflags & AM_HAL_FLAGS_##flagnm##_M) >> AM_HAL_FLAGS_##flagnm##_S)
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#define AM_HAL_FLAGS_BFW(flagnm, value) \
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g_ui32HALflags = ((g_ui32HALflags & (~(AM_HAL_FLAGS_##flagnm##_M))) | \
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((value << AM_HAL_FLAGS_##flagnm##_S) & (AM_HAL_FLAGS_##flagnm##_M)) )
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//******************************************************************************
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//
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// ITMSKIPENABLEDISABLE - Set when the ITM is not to be disabled. This is
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// typically needed by Keil debug.ini.
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//
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//******************************************************************************
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#define AM_HAL_FLAGS_ITMSKIPENABLEDISABLE_S 0
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#define AM_HAL_FLAGS_ITMSKIPENABLEDISABLE_M (1 << AM_HAL_FLAGS_ITMSKIPENABLEDISABLE_S)
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#define AM_HAL_FLAGS_ITMSKIPENABLEDISABLE(n) (((n) << AM_HAL_FLAGS_ITMSKIPENABLEDISABLE_S) & AM_HAL_FLAGS_ITMSKIPENABLEDISABLE_M)
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//******************************************************************************
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//
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// ITMBKPT - Breakpoint at the end of itm_enable(), which is needed by
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// Keil debug.ini.
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//
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//******************************************************************************
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#define AM_HAL_FLAGS_ITMBKPT_S 1
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#define AM_HAL_FLAGS_ITMBKPT_M (1 << AM_HAL_FLAGS_ITMBKPT_S)
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#define AM_HAL_FLAGS_ITMBKPT(n) (((n) << AM_HAL_FLAGS_ITMBKPT_S) & AM_HAL_FLAGS_ITMBKPT_M)
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//******************************************************************************
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//
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// Next available flag or bit field.
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//
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//******************************************************************************
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#define AM_HAL_FLAGS_NEXTBITFIELD_S 2
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#define AM_HAL_FLAGS_NEXTBITFIELD_M (1 << AM_HAL_FLAGS_NEXTBITFIELD_S)
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#define AM_HAL_FLAGS_NEXTBITFIELD(n) (((n) << AM_HAL_FLAGS_NEXTBITFIELD_S) & AM_HAL_FLAGS_NEXTBITFIELD_M)
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//*****************************************************************************
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//
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// Global Variables extern declarations.
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//
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//*****************************************************************************
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extern volatile uint32_t g_ui32HALflags;
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#ifdef __cplusplus
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}
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#endif
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#endif // AM_HAL_GLOBAL_H
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