105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* MSPDebug - debugging tool for MSP430 MCUs
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* Copyright (C) 2009, 2010 Daniel Beer
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DEVICE_H_
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#define DEVICE_H_
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#include <stdint.h>
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#include "util.h"
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struct device;
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typedef struct device *device_t;
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extern device_t device_default;
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typedef enum {
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DEVICE_CTL_RESET,
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DEVICE_CTL_RUN,
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DEVICE_CTL_HALT,
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DEVICE_CTL_STEP
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} device_ctl_t;
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typedef enum {
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DEVICE_STATUS_HALTED,
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DEVICE_STATUS_RUNNING,
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DEVICE_STATUS_INTR,
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DEVICE_STATUS_ERROR
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} device_status_t;
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typedef enum {
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DEVICE_ERASE_ALL,
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DEVICE_ERASE_MAIN,
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DEVICE_ERASE_SEGMENT
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} device_erase_type_t;
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#define DEVICE_NUM_REGS 16
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#define DEVICE_MAX_BREAKPOINTS 32
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#define DEVICE_BP_ENABLED 0x01
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#define DEVICE_BP_DIRTY 0x02
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struct device_breakpoint {
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address_t addr;
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int flags;
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};
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struct device {
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/* Breakpoint table. This should not be modified directly.
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* Instead, you should use the device_setbrk() helper function. This
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* will set the appropriate flags and ensure that the breakpoint is
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* reloaded before the next run.
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*/
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int max_breakpoints;
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struct device_breakpoint breakpoints[DEVICE_MAX_BREAKPOINTS];
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/* Close the connection to the device and destroy the driver object */
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void (*destroy)(device_t dev);
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/* Read/write memory */
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int (*readmem)(device_t dev, address_t addr,
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uint8_t *mem, address_t len);
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int (*writemem)(device_t dev, address_t addr,
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const uint8_t *mem, address_t len);
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/* Erase memory */
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int (*erase)(device_t dev, device_erase_type_t type,
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address_t address);
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/* Read/write registers */
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int (*getregs)(device_t dev, address_t *regs);
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int (*setregs)(device_t dev, const address_t *regs);
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/* CPU control */
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int (*ctl)(device_t dev, device_ctl_t op);
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/* Wait a little while for the CPU to change state */
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device_status_t (*poll)(device_t dev);
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};
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/* Set or clear a breakpoint. The index of the modified entry is
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* returned, or -1 if no free entries were available. The modified
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* entry is flagged so that it will be reloaded on the next run.
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*
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* If which is specified, a particular breakpoint slot is
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* modified. Otherwise, if which < 0, breakpoint slots are selected
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* automatically.
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*/
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int device_setbrk(device_t dev, int which, int enabled, address_t address);
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#endif
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