93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* BDM/m68k specific low level interface, for the remote server for GDB.
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Copyright (C) 2008 Free Software Foundation, Inc.
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Copyright (C) 2008 Chris Johns (chrisj@rtems.org).
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This file is part of M68K BDM.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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The code in the this file is based on the GDB server code in GDB and
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the code in M68K BDM GDB patch file called 'remote-m68k-bdm.c'.
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Based on:
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1. `A Background Debug Mode Driver Package for Motorola's
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16-bit and 32-Bit Microcontrollers', Scott Howard, Motorola
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Canada, 1993.
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2. `Linux device driver for public domain BDM Interface',
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M. Schraut, Technische Universitaet Muenchen, Lehrstuhl
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fuer Prozessrechner, 1995. */
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#if !defined (M68K_BDM_LOW_H)
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#define M68K_BDM_LOW_H
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#include "regdef.h"
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#include "BDMlib.h"
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/*
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* Mark a register as a control register using this define.
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*/
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#define BDM_REG_CONTROL_REG (1 << 31)
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#define BDM_REG_CONTROL_REG_MASK (~(1 << 31))
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#define BDM_REG_CTRL(r) (BDM_REG_CONTROL_REG | (r))
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/*
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* Mark a register as a debug register using this define.
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*/
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#define BDM_REG_DEBUG_REG (1 << 30)
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#define BDM_REG_DEBUG_REG_MASK (~(1 << 30))
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#define BDM_REG_DEBUG(r) (BDM_REG_DEBUG_REG | (r))
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/*
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* Mark a register as virtual or not present.
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*/
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#define BDM_REG_VIRTUAL_REG (1 << 29)
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#define BDM_REG_VIRTUAL_REG_MASK (~(1 << 29))
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#define BDM_REG_VIRT(r) (BDM_REG_VIRTUAL_REG | (r))
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#define BDM_REG_MASK \
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(~(BDM_REG_CONTROL_REG | BDM_REG_DEBUG_REG | BDM_REG_VIRTUAL_REG))
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/*
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* Types of registers.
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*/
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#define M68K_BDM_REG_TYPE_INT32 (0)
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#define M68K_BDM_REG_TYPE_UINT32 (1)
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#define M68K_BDM_REG_TYPE_VOID_DATA_PTR (2)
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#define M68K_BDM_REG_TYPE_M68881_EXT (3)
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/*
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* The Coldfire VBR is write only.
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*/
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#define M68K_BDM_CF_VBR_FLAGS (REG_NON_CACHEABLE | REG_WRITE_ONLY)
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/*
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* Hold a mapping from a register number to a register type
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* and device number type. The register number comes from the
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* register name.
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*/
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struct m68k_bdm_reg_mapping
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{
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const char* name;
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int type;
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int num;
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unsigned int code;
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unsigned int flags;
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};
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/*
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* The number of registers.
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*/
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#define M68K_BDM_REG_NUMBER(_m) (sizeof (_m) / sizeof (struct m68k_bdm_reg_mapping))
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#endif
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