* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
typedef struct target_type_s
{
char *name;
-
+
int examined;
/* poll current target status */
int (*halt)(struct target_s *target);
int (*resume)(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution);
int (*step)(struct target_s *target, int current, u32 address, int handle_breakpoints);
-
+
/* target reset control. assert reset can be invoked when OpenOCD and
* the target is out of sync.
- *
+ *
* A typical example is that the target was power cycled while OpenOCD
* thought the target was halted or running.
- *
+ *
* assert_reset() can therefore make no assumptions whatsoever about the
- * state of the target
- *
+ * state of the target
+ *
* Before assert_reset() for the target is invoked, a TRST/tms and
* chain validation is executed. TRST should not be asserted
* during target assert unless there is no way around it due to
* the way reset's are configured.
- *
+ *
*/
int (*assert_reset)(struct target_s *target);
int (*deassert_reset)(struct target_s *target);
int (*soft_reset_halt_imp)(struct target_s *target);
int (*soft_reset_halt)(struct target_s *target);
-
+
/* target register access for gdb.
- *
+ *
* Danger! this function will succeed even if the target is running
* and return a register list with dummy values.
- *
+ *
* The reason is that GDB connection will fail without a valid register
* list, however it is after GDB is connected that monitor commands can
* be run to properly initialize the target
*/
int (*get_gdb_reg_list)(struct target_s *target, struct reg_s **reg_list[], int *reg_list_size);
-
- /* target memory access
+
+ /* target memory access
* size: 1 = byte (8bit), 2 = half-word (16bit), 4 = word (32bit)
* count: number of items of <size>
*/
int (*read_memory)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
int (*write_memory_imp)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
int (*write_memory)(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
-
+
/* write target memory in multiples of 4 byte, optimized for writing large quantities of data */
int (*bulk_write_memory)(struct target_s *target, u32 address, u32 count, u8 *buffer);
-
+
int (*checksum_memory)(struct target_s *target, u32 address, u32 count, u32* checksum);
int (*blank_check_memory)(struct target_s *target, u32 address, u32 count, u32* blank);
-
- /*
- * target break-/watchpoint control
+
+ /*
+ * target break-/watchpoint control
* rw: 0 = write, 1 = read, 2 = access
- *
+ *
* Target must be halted while this is invoked as this
* will actually set up breakpoints on target.
- *
+ *
* The breakpoint hardware will be set up upon adding the first breakpoint.
- *
+ *
* Upon GDB connection all breakpoints/watchpoints are cleared.
*/
int (*add_breakpoint)(struct target_s *target, breakpoint_t *breakpoint);
-
+
/* remove breakpoint. hw will only be updated if the target is currently halted.
* However, this method can be invoked on unresponsive targets.
*/
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, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info);
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, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info);
- int (*register_commands)(struct command_context_s *cmd_ctx);
+ int (*register_commands)(struct command_context_s *cmd_ctx);
/* called when target is created */
int (*target_create)( struct target_s *target, Jim_Interp *interp );
/* invoked after JTAG chain has been examined & validated. During
* this stage the target is examined and any additional setup is
* performed.
- *
+ *
* invoked every time after the jtag chain has been validated/examined
*/
int (*examine)(struct target_s *target);
/* Set up structures for target.
- *
+ *
* It is illegal to talk to the target at this stage as this fn is invoked
* before the JTAG chain has been examined/verified
*/
int (*init_target)(struct command_context_s *cmd_ctx, struct target_s *target);
int (*quit)(void);
-
+
int (*virt2phys)(struct target_s *target, u32 address, u32 *physical);
int (*mmu)(struct target_s *target, int *enabled);
-
+
} target_type_t;
// forward decloration
target_type_t *type; /* target type definition (name, access functions) */
const char *cmd_name; /* tcl Name of target */
int target_number; /* generaly, target index but may not be in order */
- int chain_position; /* where on the jtag chain is this */
+ jtag_tap_t *tap; /* where on the jtag chain is this */
const char *variant; /* what varient of this chip is it? */
target_event_action_t *event_action;
int reset_halt; /* attempt resetting the CPU into the halted mode? */
- u32 working_area; /* working area (initialized RAM). Evaluated
+ u32 working_area; /* working area (initialized RAM). Evaluated
upon first allocation from virtual/physical address. */
u32 working_area_virt; /* virtual address */
u32 working_area_phys; /* physical address */
u32 dbg_msg_enabled; /* debug message status */
void *arch_info; /* architecture specific information */
struct target_s *next; /* next target in list */
+
+ int display; /* display async info in telnet session. Do not display
+ lots of halted/resumed info when stepping in debugger. */
} target_t;
enum target_event
TARGET_EVENT_OLD_post_reset,
TARGET_EVENT_OLD_pre_resume,
+ /* allow GDB to do stuff before others handle the halted event,
+ this is in lieu of defining ordering of invocation of events,
+ which would be more complicated */
+ TARGET_EVENT_EARLY_HALTED,
TARGET_EVENT_HALTED, /* target entered debug state from normal execution or reset */
TARGET_EVENT_RESUMED, /* target resumed to normal execution */
TARGET_EVENT_RESUME_START,
TARGET_EVENT_RESUME_END,
+ TARGET_EVENT_GDB_START, /* debugger started execution (step/run) */
+ TARGET_EVENT_GDB_END, /* debugger stopped execution (step/run) */
+
TARGET_EVENT_RESET_START,
TARGET_EVENT_RESET_ASSERT_PRE,
TARGET_EVENT_RESET_ASSERT_POST,
TARGET_EVENT_EXAMINE_START,
TARGET_EVENT_EXAMINE_END,
-
+
TARGET_EVENT_GDB_ATTACH,
TARGET_EVENT_GDB_DETACH,
extern int target_halt(target_t *target);
extern int target_call_event_callbacks(target_t *target, enum target_event event);
-/* The period is very approximate, the callback can happen much more often
+/* The period is very approximate, the callback can happen much more often
* or much more rarely than specified
*/
extern int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv);
extern int target_wait_state(target_t *target, enum target_state state, int ms);
/* DANGER!!!!!
- *
+ *
* if "area" passed in to target_alloc_working_area() points to a memory
* location that goes out of scope (e.g. a pointer on the stack), then
* the caller of target_alloc_working_area() is responsible for invoking
* target_free_working_area() before "area" goes out of scope.
- *
+ *
* target_free_all_working_areas() will NULL out the "area" pointer
* upon resuming or resetting the CPU.
- *
+ *
*/
extern int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area);
extern int target_free_working_area(struct target_s *target, working_area_t *area);
extern int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore);
-extern int target_free_all_working_areas(struct target_s *target);
-extern int target_free_all_working_areas_restore(struct target_s *target, int restore);
+extern void target_free_all_working_areas(struct target_s *target);
+extern void target_free_all_working_areas_restore(struct target_s *target, int restore);
extern target_t *all_targets;
extern const char *target_strerror_safe( int err );
#endif /* TARGET_H */
-
-
-/*
- * Local Variables: ***
- * c-basic-offset: 4 ***
- * tab-width: 4 ***
- * End: ***
- */
Code Review / openocd.git / blobdiff