X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Ftarget_type.h;h=21439b656aa396dff6db63ba18e207dfd6dc2c57;hp=009a483e5a7ff9a86edcb90a8f8010c6b882460f;hb=0a4c8990c29e61fd0c2796486519cdb256b8da3b;hpb=86173cdbddde781b19ac630602f2d450a59b32b5 diff --git a/src/target/target_type.h b/src/target/target_type.h index 009a483e5a..21439b656a 100644 --- a/src/target/target_type.h +++ b/src/target/target_type.h @@ -1,39 +1,64 @@ +/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * Copyright (C) 2007-2010 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 * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * + ***************************************************************************/ + #ifndef TARGET_TYPE_H #define TARGET_TYPE_H -#include "types.h" +#include -struct target_s; +struct target; -struct target_type_s -{ +/** + * This holds methods shared between all instances of a given target + * type. For example, all Cortex-M3 targets on a scan chain share + * the same method table. + */ +struct target_type { /** - * Name of the target. Do @b not access this field directly, use - * target_get_name() instead. - */ - char *name; - - /** - * Indicates whether this target has been examined. - * - * Do @b not access this field directly, use target_was_examined() - * target_set_examined(), and target_reset_examined(). + * Name of this type of target. Do @b not access this + * field directly, use target_type_name() instead. */ - int examined; + const char *name; + const char *deprecated_name; /* poll current target status */ - int (*poll)(struct target_s *target); + int (*poll)(struct target *target); /* Invoked only from target_arch_state(). * Issue USER() w/architecture specific status. */ - int (*arch_state)(struct target_s *target); + int (*arch_state)(struct target *target); /* target request support */ - int (*target_request_data)(struct target_s *target, u32 size, uint8_t *buffer); + int (*target_request_data)(struct target *target, uint32_t size, uint8_t *buffer); /* halt will log a warning, but return ERROR_OK if the target is already halted. */ - 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); + int (*halt)(struct target *target); + int (*resume)(struct target *target, int current, uint32_t address, + int handle_breakpoints, int debug_execution); + int (*step)(struct target *target, int current, uint32_t address, + int handle_breakpoints); /* target reset control. assert reset can be invoked when OpenOCD and * the target is out of sync. @@ -50,10 +75,20 @@ struct target_type_s * 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); + int (*assert_reset)(struct target *target); + /** + * The implementation is responsible for polling the + * target such that target->state reflects the + * state correctly. + * + * Otherwise the following would fail, as there will not + * be any "poll" invoked inbetween the "reset run" and + * "halt". + * + * reset run; halt + */ + int (*deassert_reset)(struct target *target); + int (*soft_reset_halt)(struct target *target); /** * Target register access for GDB. Do @b not call this function @@ -66,34 +101,47 @@ struct target_type_s * 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); + int (*get_gdb_reg_list)(struct target *target, struct reg **reg_list[], + int *reg_list_size, enum target_register_class reg_class); /* target memory access * size: 1 = byte (8bit), 2 = half-word (16bit), 4 = word (32bit) * count: number of items of */ - int (*read_memory_imp)(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer); + /** * Target memory read callback. Do @b not call this function * directly, use target_read_memory() instead. */ - int (*read_memory)(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer); - int (*write_memory_imp)(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer); + int (*read_memory)(struct target *target, uint32_t address, + uint32_t size, uint32_t count, uint8_t *buffer); /** * Target memory write callback. Do @b not call this function * directly, use target_write_memory() instead. */ - int (*write_memory)(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer); + int (*write_memory)(struct target *target, uint32_t address, + uint32_t size, uint32_t count, const uint8_t *buffer); + + /* Default implementation will do some fancy alignment to improve performance, target can override */ + int (*read_buffer)(struct target *target, uint32_t address, + uint32_t size, uint8_t *buffer); + + /* Default implementation will do some fancy alignment to improve performance, target can override */ + int (*write_buffer)(struct target *target, uint32_t address, + uint32_t size, const uint8_t *buffer); /** * Write target memory in multiples of 4 bytes, optimized for * writing large quantities of data. Do @b not call this * function directly, use target_bulk_write_memory() instead. */ - int (*bulk_write_memory)(struct target_s *target, u32 address, u32 count, uint8_t *buffer); + int (*bulk_write_memory)(struct target *target, uint32_t address, + uint32_t count, const uint8_t *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); + int (*checksum_memory)(struct target *target, uint32_t address, + uint32_t count, uint32_t *checksum); + int (*blank_check_memory)(struct target *target, uint32_t address, + uint32_t count, uint32_t *blank); /* * target break-/watchpoint control @@ -102,62 +150,129 @@ struct target_type_s * 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. + * 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); + int (*add_breakpoint)(struct target *target, struct breakpoint *breakpoint); + int (*add_context_breakpoint)(struct target *target, struct breakpoint *breakpoint); + int (*add_hybrid_breakpoint)(struct target *target, struct breakpoint *breakpoint); - /* remove breakpoint. hw will only be updated if the target is currently halted. + /* remove breakpoint. hw will only be updated if the target + * is currently halted. * However, this method can be invoked on unresponsive targets. */ - int (*remove_breakpoint)(struct target_s *target, breakpoint_t *breakpoint); - int (*add_watchpoint)(struct target_s *target, watchpoint_t *watchpoint); - /* remove watchpoint. hw will only be updated if the target is currently halted. + int (*remove_breakpoint)(struct target *target, struct breakpoint *breakpoint); + + /* add watchpoint ... see add_breakpoint() comment above. */ + int (*add_watchpoint)(struct target *target, struct watchpoint *watchpoint); + + /* remove watchpoint. hw will only be updated if the target + * is currently halted. * However, this method can be invoked on unresponsive targets. */ - int (*remove_watchpoint)(struct target_s *target, watchpoint_t *watchpoint); + int (*remove_watchpoint)(struct target *target, struct watchpoint *watchpoint); + + /* Find out just hit watchpoint. After the target hits a watchpoint, the + * information could assist gdb to locate where the modified/accessed memory is. + */ + int (*hit_watchpoint)(struct target *target, struct watchpoint **hit_watchpoint); - /* target algorithm support */ - 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); /** * Target algorithm support. Do @b not call this method directly, * use target_run_algorithm() instead. */ - 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 (*run_algorithm)(struct target *target, int num_mem_params, + struct mem_param *mem_params, int num_reg_params, + struct reg_param *reg_param, uint32_t entry_point, + uint32_t exit_point, int timeout_ms, void *arch_info); + int (*start_algorithm)(struct target *target, int num_mem_params, + struct mem_param *mem_params, int num_reg_params, + struct reg_param *reg_param, uint32_t entry_point, + uint32_t exit_point, void *arch_info); + int (*wait_algorithm)(struct target *target, int num_mem_params, + struct mem_param *mem_params, int num_reg_params, + struct reg_param *reg_param, uint32_t exit_point, + int timeout_ms, void *arch_info); - int (*register_commands)(struct command_context_s *cmd_ctx); + const struct command_registration *commands; /* called when target is created */ - int (*target_create)( struct target_s *target, Jim_Interp *interp ); + int (*target_create)(struct target *target, Jim_Interp *interp); /* called for various config parameters */ /* returns JIM_CONTINUE - if option not understood */ /* otherwise: JIM_OK, or JIM_ERR, */ - int (*target_jim_configure)( struct target_s *target, Jim_GetOptInfo *goi ); + int (*target_jim_configure)(struct target *target, Jim_GetOptInfo *goi); /* target commands specifically handled by the target */ /* returns JIM_OK, or JIM_ERR, or JIM_CONTINUE - if option not understood */ - int (*target_jim_commands)( struct target_s *target, Jim_GetOptInfo *goi ); + int (*target_jim_commands)(struct target *target, Jim_GetOptInfo *goi); - /* invoked after JTAG chain has been examined & validated. During - * this stage the target is examined and any additional setup is - * performed. + /** + * This method is used to perform target setup that requires + * JTAG access. + * + * This may be called multiple times. It is called after the + * scan chain is initially validated, or later after the target + * is enabled by a JRC. It may also be called during some + * parts of the reset sequence. * - * invoked every time after the jtag chain has been validated/examined + * For one-time initialization tasks, use target_was_examined() + * and target_set_examined(). For example, probe the hardware + * before setting up chip-specific state, and then set that + * flag so you don't do that again. */ - int (*examine)(struct target_s *target); + int (*examine)(struct target *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 (*init_target)(struct command_context *cmd_ctx, struct target *target); + + /* translate from virtual to physical address. Default implementation is successful + * no-op(i.e. virtual==physical). + */ + int (*virt2phys)(struct target *target, uint32_t address, uint32_t *physical); - int (*virt2phys)(struct target_s *target, u32 address, u32 *physical); - int (*mmu)(struct target_s *target, int *enabled); + /* read directly from physical memory. caches are bypassed and untouched. + * + * If the target does not support disabling caches, leaving them untouched, + * then minimally the actual physical memory location will be read even + * if cache states are unchanged, flushed, etc. + * + * Default implementation is to call read_memory. + */ + int (*read_phys_memory)(struct target *target, uint32_t phys_address, + uint32_t size, uint32_t count, uint8_t *buffer); + + /* + * same as read_phys_memory, except that it writes... + */ + int (*write_phys_memory)(struct target *target, uint32_t phys_address, + uint32_t size, uint32_t count, const uint8_t *buffer); + + int (*mmu)(struct target *target, int *enabled); + + /* after reset is complete, the target can check if things are properly set up. + * + * This can be used to check if e.g. DCC memory writes have been enabled for + * arm7/9 targets, which they really should except in the most contrived + * circumstances. + */ + int (*check_reset)(struct target *target); + + /* get GDB file-I/O parameters from target + */ + int (*get_gdb_fileio_info)(struct target *target, struct gdb_fileio_info *fileio_info); + + /* pass GDB file-I/O response to target + */ + int (*gdb_fileio_end)(struct target *target, int retcode, int fileio_errno, bool ctrl_c); }; -#endif // TARGET_TYPE_H +#endif /* TARGET_TYPE_H */