208 lines
9.1 KiB
C
208 lines
9.1 KiB
C
/***************************************************************************
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* Copyright (C) 2005 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* Copyright (C) 2008 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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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 *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef TARGET_TYPE_H
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#define TARGET_TYPE_H
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#include "types.h"
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struct target_s;
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struct target_type_s
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{
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/**
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* Name of the target. Do @b not access this field directly, use
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* target_get_name() instead.
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*/
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char *name;
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/**
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* Indicates whether this target has been examined.
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*
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* Do @b not access this field directly, use target_was_examined()
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* target_set_examined(), and target_reset_examined().
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*/
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int examined;
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/* poll current target status */
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int (*poll)(struct target_s *target);
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/* Invoked only from target_arch_state().
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* Issue USER() w/architecture specific status. */
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int (*arch_state)(struct target_s *target);
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/* target request support */
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int (*target_request_data)(struct target_s *target, uint32_t size, uint8_t *buffer);
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/* halt will log a warning, but return ERROR_OK if the target is already halted. */
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int (*halt)(struct target_s *target);
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int (*resume)(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution);
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int (*step)(struct target_s *target, int current, uint32_t address, int handle_breakpoints);
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/* target reset control. assert reset can be invoked when OpenOCD and
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* the target is out of sync.
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*
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* A typical example is that the target was power cycled while OpenOCD
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* thought the target was halted or running.
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*
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* assert_reset() can therefore make no assumptions whatsoever about the
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* state of the target
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*
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* Before assert_reset() for the target is invoked, a TRST/tms and
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* chain validation is executed. TRST should not be asserted
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* during target assert unless there is no way around it due to
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* the way reset's are configured.
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*
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*/
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int (*assert_reset)(struct target_s *target);
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int (*deassert_reset)(struct target_s *target);
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int (*soft_reset_halt_imp)(struct target_s *target);
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int (*soft_reset_halt)(struct target_s *target);
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/**
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* Target register access for GDB. Do @b not call this function
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* directly, use target_get_gdb_reg_list() instead.
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*
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* Danger! this function will succeed even if the target is running
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* and return a register list with dummy values.
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*
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* The reason is that GDB connection will fail without a valid register
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* list, however it is after GDB is connected that monitor commands can
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* be run to properly initialize the target
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*/
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int (*get_gdb_reg_list)(struct target_s *target, struct reg_s **reg_list[], int *reg_list_size);
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/* target memory access
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* size: 1 = byte (8bit), 2 = half-word (16bit), 4 = word (32bit)
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* count: number of items of <size>
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*/
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int (*read_memory_imp)(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
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/**
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* Target memory read callback. Do @b not call this function
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* directly, use target_read_memory() instead.
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*/
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int (*read_memory)(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
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int (*write_memory_imp)(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
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/**
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* Target memory write callback. Do @b not call this function
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* directly, use target_write_memory() instead.
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*/
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int (*write_memory)(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
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/**
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* Write target memory in multiples of 4 bytes, optimized for
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* writing large quantities of data. Do @b not call this
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* function directly, use target_bulk_write_memory() instead.
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*/
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int (*bulk_write_memory)(struct target_s *target, uint32_t address, uint32_t count, uint8_t *buffer);
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int (*checksum_memory)(struct target_s *target, uint32_t address, uint32_t count, uint32_t* checksum);
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int (*blank_check_memory)(struct target_s *target, uint32_t address, uint32_t count, uint32_t* blank);
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/*
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* target break-/watchpoint control
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* rw: 0 = write, 1 = read, 2 = access
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*
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* Target must be halted while this is invoked as this
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* will actually set up breakpoints on target.
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*
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* The breakpoint hardware will be set up upon adding the first breakpoint.
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*
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* Upon GDB connection all breakpoints/watchpoints are cleared.
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*/
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int (*add_breakpoint)(struct target_s *target, breakpoint_t *breakpoint);
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/* remove breakpoint. hw will only be updated if the target is currently halted.
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* However, this method can be invoked on unresponsive targets.
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*/
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int (*remove_breakpoint)(struct target_s *target, breakpoint_t *breakpoint);
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int (*add_watchpoint)(struct target_s *target, watchpoint_t *watchpoint);
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/* remove watchpoint. hw will only be updated if the target is currently halted.
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* However, this method can be invoked on unresponsive targets.
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*/
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int (*remove_watchpoint)(struct target_s *target, watchpoint_t *watchpoint);
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/* target algorithm support */
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int (*run_algorithm_imp)(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info);
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/**
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* Target algorithm support. Do @b not call this method directly,
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* use target_run_algorithm() instead.
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*/
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int (*run_algorithm)(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info);
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int (*register_commands)(struct command_context_s *cmd_ctx);
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/* called when target is created */
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int (*target_create)(struct target_s *target, Jim_Interp *interp);
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/* called for various config parameters */
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/* returns JIM_CONTINUE - if option not understood */
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/* otherwise: JIM_OK, or JIM_ERR, */
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int (*target_jim_configure)(struct target_s *target, Jim_GetOptInfo *goi);
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/* target commands specifically handled by the target */
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/* returns JIM_OK, or JIM_ERR, or JIM_CONTINUE - if option not understood */
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int (*target_jim_commands)(struct target_s *target, Jim_GetOptInfo *goi);
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/* invoked after JTAG chain has been examined & validated. During
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* this stage the target is examined and any additional setup is
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* performed.
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*
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* invoked every time after the jtag chain has been validated/examined
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*/
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int (*examine)(struct target_s *target);
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/* Set up structures for target.
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*
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* It is illegal to talk to the target at this stage as this fn is invoked
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* before the JTAG chain has been examined/verified
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* */
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int (*init_target)(struct command_context_s *cmd_ctx, struct target_s *target);
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int (*quit)(void);
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/* translate from virtual to physical address. Default implementation is successful
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* no-op(i.e. virtual==physical).
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*/
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int (*virt2phys)(struct target_s *target, uint32_t address, uint32_t *physical);
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/* read directly from physical memory. caches are bypassed and untouched.
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*
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* If the target does not support disabling caches, leaving them untouched,
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* then minimally the actual physical memory location will be read even
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* if cache states are unchanged, flushed, etc.
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*
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* Default implementation is to call read_memory.
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*/
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int (*read_phys_memory)(struct target_s *target, uint32_t phys_address, uint32_t size, uint32_t count, uint8_t *buffer);
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/*
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* same as read_phys_memory, except that it writes...
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*/
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int (*write_phys_memory)(struct target_s *target, uint32_t phys_address, uint32_t size, uint32_t count, uint8_t *buffer);
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int (*mmu)(struct target_s *target, int *enabled);
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};
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#endif // TARGET_TYPE_H
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