X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm9tdmi.c;h=6ab06edf946757fb11e561ddd99bee20d06595c0;hp=c7fd7b29c416c719f5c0224e4d2d85e10f963a79;hb=6cb5ba6f1136df2986850f5c176cb38e34ca1795;hpb=cb7ad25c0404147a0a60f04c3b8fa8ac7386bb29 diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c index c7fd7b29c4..6ab06edf94 100644 --- a/src/target/arm9tdmi.c +++ b/src/target/arm9tdmi.c @@ -19,17 +19,18 @@ * 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., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * along with this program. If not, see . * ***************************************************************************/ + #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "arm9tdmi.h" #include "target_type.h" - +#include "register.h" +#include "arm_opcodes.h" +#include "arm_semihosting.h" /* * NOTE: this holds code that's used with multiple ARM9 processors: @@ -45,110 +46,67 @@ #define _DEBUG_INSTRUCTION_EXECUTION_ #endif -/* cli handling */ -int handle_arm9tdmi_catch_vectors_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -/* forward declarations */ -int arm9tdmi_target_create(struct target_s *target, Jim_Interp *interp); - -int arm9tdmi_quit(void); - -target_type_t arm9tdmi_target = -{ - .name = "arm9tdmi", - - .poll = arm7_9_poll, - .arch_state = armv4_5_arch_state, - - .target_request_data = arm7_9_target_request_data, - - .halt = arm7_9_halt, - .resume = arm7_9_resume, - .step = arm7_9_step, - - .assert_reset = arm7_9_assert_reset, - .deassert_reset = arm7_9_deassert_reset, - .soft_reset_halt = arm7_9_soft_reset_halt, - - .get_gdb_reg_list = armv4_5_get_gdb_reg_list, - - .read_memory = arm7_9_read_memory, - .write_memory = arm7_9_write_memory, - .bulk_write_memory = arm7_9_bulk_write_memory, - .checksum_memory = arm7_9_checksum_memory, - .blank_check_memory = arm7_9_blank_check_memory, - - .run_algorithm = armv4_5_run_algorithm, - - .add_breakpoint = arm7_9_add_breakpoint, - .remove_breakpoint = arm7_9_remove_breakpoint, - .add_watchpoint = arm7_9_add_watchpoint, - .remove_watchpoint = arm7_9_remove_watchpoint, - - .register_commands = arm9tdmi_register_commands, - .target_create = arm9tdmi_target_create, - .init_target = arm9tdmi_init_target, - .examine = arm9tdmi_examine, - .quit = arm9tdmi_quit +enum arm9tdmi_vector_bit { + ARM9TDMI_RESET_VECTOR = 0x01, + ARM9TDMI_UNDEF_VECTOR = 0x02, + ARM9TDMI_SWI_VECTOR = 0x04, + ARM9TDMI_PABT_VECTOR = 0x08, + ARM9TDMI_DABT_VECTOR = 0x10, + /* BIT(5) reserved -- must be zero */ + ARM9TDMI_IRQ_VECTOR = 0x40, + ARM9TDMI_FIQ_VECTOR = 0x80, }; -arm9tdmi_vector_t arm9tdmi_vectors[] = -{ +static const struct arm9tdmi_vector { + const char *name; + uint32_t value; +} arm9tdmi_vectors[] = { {"reset", ARM9TDMI_RESET_VECTOR}, {"undef", ARM9TDMI_UNDEF_VECTOR}, {"swi", ARM9TDMI_SWI_VECTOR}, {"pabt", ARM9TDMI_PABT_VECTOR}, {"dabt", ARM9TDMI_DABT_VECTOR}, - {"reserved", ARM9TDMI_RESERVED_VECTOR}, {"irq", ARM9TDMI_IRQ_VECTOR}, {"fiq", ARM9TDMI_FIQ_VECTOR}, {0, 0}, }; -int arm9tdmi_examine_debug_reason(target_t *target) +int arm9tdmi_examine_debug_reason(struct target *target) { int retval = ERROR_OK; - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); /* only check the debug reason if we don't know it already */ if ((target->debug_reason != DBG_REASON_DBGRQ) - && (target->debug_reason != DBG_REASON_SINGLESTEP)) - { - scan_field_t fields[3]; + && (target->debug_reason != DBG_REASON_SINGLESTEP)) { + struct scan_field fields[3]; uint8_t databus[4]; uint8_t instructionbus[4]; uint8_t debug_reason; - jtag_set_end_state(TAP_DRPAUSE); - - fields[0].tap = arm7_9->jtag_info.tap; fields[0].num_bits = 32; fields[0].out_value = NULL; fields[0].in_value = databus; - fields[1].tap = arm7_9->jtag_info.tap; fields[1].num_bits = 3; fields[1].out_value = NULL; fields[1].in_value = &debug_reason; - fields[2].tap = arm7_9->jtag_info.tap; fields[2].num_bits = 32; fields[2].out_value = NULL; fields[2].in_value = instructionbus; - if ((retval = arm_jtag_scann(&arm7_9->jtag_info, 0x1)) != ERROR_OK) - { + retval = arm_jtag_scann(&arm7_9->jtag_info, 0x1, TAP_DRPAUSE); + if (retval != ERROR_OK) + return retval; + retval = arm_jtag_set_instr(arm7_9->jtag_info.tap, arm7_9->jtag_info.intest_instr, NULL, TAP_DRPAUSE); + if (retval != ERROR_OK) return retval; - } - arm_jtag_set_instr(&arm7_9->jtag_info, arm7_9->jtag_info.intest_instr, NULL); - jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_DRPAUSE)); - if ((retval = jtag_execute_queue()) != ERROR_OK) - { + jtag_add_dr_scan(arm7_9->jtag_info.tap, 3, fields, TAP_DRPAUSE); + retval = jtag_execute_queue(); + if (retval != ERROR_OK) return retval; - } fields[0].in_value = NULL; fields[0].out_value = databus; @@ -157,7 +115,7 @@ int arm9tdmi_examine_debug_reason(target_t *target) fields[2].in_value = NULL; fields[2].out_value = instructionbus; - jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_DRPAUSE)); + jtag_add_dr_scan(arm7_9->jtag_info.tap, 3, fields, TAP_DRPAUSE); if (debug_reason & 0x4) if (debug_reason & 0x2) @@ -171,11 +129,14 @@ int arm9tdmi_examine_debug_reason(target_t *target) return ERROR_OK; } -/* put an instruction in the ARM9TDMI pipeline or write the data bus, and optionally read data */ -int arm9tdmi_clock_out(arm_jtag_t *jtag_info, uint32_t instr, uint32_t out, uint32_t *in, int sysspeed) +/* put an instruction in the ARM9TDMI pipeline or write the data bus, + * and optionally read data + */ +int arm9tdmi_clock_out(struct arm_jtag *jtag_info, uint32_t instr, + uint32_t out, uint32_t *in, int sysspeed) { int retval = ERROR_OK; - scan_field_t fields[3]; + struct scan_field fields[3]; uint8_t out_buf[4]; uint8_t instr_buf[4]; uint8_t sysspeed_buf = 0x0; @@ -188,54 +149,44 @@ int arm9tdmi_clock_out(arm_jtag_t *jtag_info, uint32_t instr, uint32_t out, uint if (sysspeed) buf_set_u32(&sysspeed_buf, 2, 1, 1); - jtag_set_end_state(TAP_DRPAUSE); - if ((retval = arm_jtag_scann(jtag_info, 0x1)) != ERROR_OK) - { + retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE); + if (retval != ERROR_OK) return retval; - } - arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); + retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_DRPAUSE); + if (retval != ERROR_OK) + return retval; - fields[0].tap = jtag_info->tap; fields[0].num_bits = 32; fields[0].out_value = out_buf; fields[0].in_value = NULL; - fields[1].tap = jtag_info->tap; fields[1].num_bits = 3; fields[1].out_value = &sysspeed_buf; fields[1].in_value = NULL; - fields[2].tap = jtag_info->tap; fields[2].num_bits = 32; fields[2].out_value = instr_buf; fields[2].in_value = NULL; - if (in) - { + if (in) { fields[0].in_value = (uint8_t *)in; - jtag_add_dr_scan(3, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_DRPAUSE); jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)in); - } - else - { - jtag_add_dr_scan(3, fields, jtag_get_end_state()); - } + } else + jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_DRPAUSE); - jtag_add_runtest(0, jtag_get_end_state()); + jtag_add_runtest(0, TAP_DRPAUSE); #ifdef _DEBUG_INSTRUCTION_EXECUTION_ { - if ((retval = jtag_execute_queue()) != ERROR_OK) - { + retval = jtag_execute_queue(); + if (retval != ERROR_OK) return retval; - } if (in) - { LOG_DEBUG("instr: 0x%8.8x, out: 0x%8.8x, in: 0x%8.8x", instr, out, *in); - } else LOG_DEBUG("instr: 0x%8.8x, out: 0x%8.8x", instr, out); } @@ -245,136 +196,123 @@ int arm9tdmi_clock_out(arm_jtag_t *jtag_info, uint32_t instr, uint32_t out, uint } /* just read data (instruction and data-out = don't care) */ -int arm9tdmi_clock_data_in(arm_jtag_t *jtag_info, uint32_t *in) +int arm9tdmi_clock_data_in(struct arm_jtag *jtag_info, uint32_t *in) { - int retval = ERROR_OK;; - scan_field_t fields[3]; + int retval = ERROR_OK; + struct scan_field fields[3]; - jtag_set_end_state(TAP_DRPAUSE); - if ((retval = arm_jtag_scann(jtag_info, 0x1)) != ERROR_OK) - { + retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE); + if (retval != ERROR_OK) return retval; - } - arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); + retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_DRPAUSE); + if (retval != ERROR_OK) + return retval; - fields[0].tap = jtag_info->tap; fields[0].num_bits = 32; fields[0].out_value = NULL; fields[0].in_value = (uint8_t *)in; - fields[1].tap = jtag_info->tap; fields[1].num_bits = 3; fields[1].out_value = NULL; fields[1].in_value = NULL; - fields[2].tap = jtag_info->tap; fields[2].num_bits = 32; fields[2].out_value = NULL; fields[2].in_value = NULL; - jtag_add_dr_scan(3, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_DRPAUSE); jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)in); - jtag_add_runtest(0, jtag_get_end_state()); + jtag_add_runtest(0, TAP_DRPAUSE); #ifdef _DEBUG_INSTRUCTION_EXECUTION_ { - if ((retval = jtag_execute_queue()) != ERROR_OK) - { + retval = jtag_execute_queue(); + if (retval != ERROR_OK) return retval; - } if (in) - { LOG_DEBUG("in: 0x%8.8x", *in); - } else - { LOG_ERROR("BUG: called with in == NULL"); - } } #endif return ERROR_OK; } -extern void arm_endianness(uint8_t *tmp, void *in, int size, int be, int flip); - -static int arm9endianness(jtag_callback_data_t arg, jtag_callback_data_t size, jtag_callback_data_t be, jtag_callback_data_t captured) -{ - uint8_t *in = (uint8_t *)arg; - arm_endianness((uint8_t *)captured, in, (int)size, (int)be, 0); - return ERROR_OK; -} - /* clock the target, and read the databus * the *in pointer points to a buffer where elements of 'size' bytes * are stored in big (be == 1) or little (be == 0) endianness */ -int arm9tdmi_clock_data_in_endianness(arm_jtag_t *jtag_info, void *in, int size, int be) +int arm9tdmi_clock_data_in_endianness(struct arm_jtag *jtag_info, + void *in, int size, int be) { int retval = ERROR_OK; - scan_field_t fields[3]; + struct scan_field fields[2]; - jtag_set_end_state(TAP_DRPAUSE); - if ((retval = arm_jtag_scann(jtag_info, 0x1)) != ERROR_OK) - { + retval = arm_jtag_scann(jtag_info, 0x1, TAP_DRPAUSE); + if (retval != ERROR_OK) return retval; - } - arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); + retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_DRPAUSE); + if (retval != ERROR_OK) + return retval; - fields[0].tap = jtag_info->tap; - fields[0].num_bits = 32; - fields[0].out_value = NULL; - jtag_alloc_in_value32(&fields[0]); + if (size == 4) { + fields[0].num_bits = 32; + fields[0].out_value = NULL; + fields[0].in_value = in; - fields[1].tap = jtag_info->tap; - fields[1].num_bits = 3; - fields[1].out_value = NULL; - fields[1].in_value = NULL; + fields[1].num_bits = 3 + 32; + fields[1].out_value = NULL; + fields[1].in_value = NULL; + } else { + /* Discard irrelevant bits of the scan, making sure we don't write more + * than size bytes to in */ + fields[0].num_bits = size * 8; + fields[0].out_value = NULL; + fields[0].in_value = in; - fields[2].tap = jtag_info->tap; - fields[2].num_bits = 32; - fields[2].out_value = NULL; - fields[2].in_value = NULL; + fields[1].num_bits = 3 + 32 + 32 - size * 8; + fields[1].out_value = NULL; + fields[1].in_value = NULL; + } - jtag_add_dr_scan(3, fields, jtag_get_end_state()); + jtag_add_dr_scan(jtag_info->tap, 2, fields, TAP_DRPAUSE); - jtag_add_callback4(arm9endianness, (jtag_callback_data_t)in, (jtag_callback_data_t)size, (jtag_callback_data_t)be, (jtag_callback_data_t)fields[0].in_value); + jtag_add_callback4(arm7_9_endianness_callback, + (jtag_callback_data_t)in, + (jtag_callback_data_t)size, + (jtag_callback_data_t)be, + (jtag_callback_data_t)0); - jtag_add_runtest(0, jtag_get_end_state()); + jtag_add_runtest(0, TAP_DRPAUSE); #ifdef _DEBUG_INSTRUCTION_EXECUTION_ { - if ((retval = jtag_execute_queue()) != ERROR_OK) - { + retval = jtag_execute_queue(); + if (retval != ERROR_OK) return retval; - } if (in) - { - LOG_DEBUG("in: 0x%8.8x", *(uint32_t*)in); - } + LOG_DEBUG("in: 0x%8.8x", *(uint32_t *)in); else - { LOG_ERROR("BUG: called with in == NULL"); - } } #endif return ERROR_OK; } -void arm9tdmi_change_to_arm(target_t *target, uint32_t *r0, uint32_t *pc) +static void arm9tdmi_change_to_arm(struct target *target, + uint32_t *r0, uint32_t *pc) { int retval = ERROR_OK; - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* save r0 before using it and put system in ARM state * to allow common handling of ARM and THUMB debugging */ @@ -411,10 +349,9 @@ void arm9tdmi_change_to_arm(target_t *target, uint32_t *r0, uint32_t *pc) /* NOP fetched, BX in Execute (1) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, 0, NULL, 0); - if ((retval = jtag_execute_queue()) != ERROR_OK) - { + retval = jtag_execute_queue(); + if (retval != ERROR_OK) return; - } /* fix program counter: * MOV r0, r15 was the 5th instruction (+8) @@ -423,13 +360,12 @@ void arm9tdmi_change_to_arm(target_t *target, uint32_t *r0, uint32_t *pc) *pc -= 0xc; } -void arm9tdmi_read_core_regs(target_t *target, uint32_t mask, uint32_t* core_regs[16]) +void arm9tdmi_read_core_regs(struct target *target, + uint32_t mask, uint32_t *core_regs[16]) { int i; - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* STMIA r0-15, [r0] at debug speed * register values will start to appear on 4th DCLK @@ -441,21 +377,19 @@ void arm9tdmi_read_core_regs(target_t *target, uint32_t mask, uint32_t* core_reg /* fetch NOP, STM in EXECUTE stage (1st cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); - for (i = 0; i <= 15; i++) - { + for (i = 0; i <= 15; i++) { if (mask & (1 << i)) /* nothing fetched, STM in MEMORY (i'th cycle) */ arm9tdmi_clock_data_in(jtag_info, core_regs[i]); } } -void arm9tdmi_read_core_regs_target_buffer(target_t *target, uint32_t mask, void* buffer, int size) +static void arm9tdmi_read_core_regs_target_buffer(struct target *target, + uint32_t mask, void *buffer, int size) { int i; - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; int be = (target->endianness == TARGET_BIG_ENDIAN) ? 1 : 0; uint32_t *buf_u32 = buffer; uint16_t *buf_u16 = buffer; @@ -471,12 +405,10 @@ void arm9tdmi_read_core_regs_target_buffer(target_t *target, uint32_t mask, void /* fetch NOP, STM in EXECUTE stage (1st cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); - for (i = 0; i <= 15; i++) - { + for (i = 0; i <= 15; i++) { if (mask & (1 << i)) /* nothing fetched, STM in MEMORY (i'th cycle) */ - switch (size) - { + switch (size) { case 4: arm9tdmi_clock_data_in_endianness(jtag_info, buf_u32++, 4, be); break; @@ -490,12 +422,10 @@ void arm9tdmi_read_core_regs_target_buffer(target_t *target, uint32_t mask, void } } -void arm9tdmi_read_xpsr(target_t *target, uint32_t *xpsr, int spsr) +static void arm9tdmi_read_xpsr(struct target *target, uint32_t *xpsr, int spsr) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* MRS r0, cpsr */ arm9tdmi_clock_out(jtag_info, ARMV4_5_MRS(0, spsr & 1), 0, NULL, 0); @@ -514,12 +444,10 @@ void arm9tdmi_read_xpsr(target_t *target, uint32_t *xpsr, int spsr) arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, xpsr, 0); } -void arm9tdmi_write_xpsr(target_t *target, uint32_t xpsr, int spsr) +static void arm9tdmi_write_xpsr(struct target *target, uint32_t xpsr, int spsr) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; LOG_DEBUG("xpsr: %8.8" PRIx32 ", spsr: %i", xpsr, spsr); @@ -550,12 +478,11 @@ void arm9tdmi_write_xpsr(target_t *target, uint32_t xpsr, int spsr) arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); } -void arm9tdmi_write_xpsr_im8(target_t *target, uint8_t xpsr_im, int rot, int spsr) +static void arm9tdmi_write_xpsr_im8(struct target *target, + uint8_t xpsr_im, int rot, int spsr) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; LOG_DEBUG("xpsr_im: %2.2x, rot: %i, spsr: %i", xpsr_im, rot, spsr); @@ -567,8 +494,7 @@ void arm9tdmi_write_xpsr_im8(target_t *target, uint8_t xpsr_im, int rot, int sps arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); /* rot == 4 writes flags, which takes only one cycle */ - if (rot != 4) - { + if (rot != 4) { /* nothing fetched, MSR in EXECUTE (2) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); /* nothing fetched, MSR in EXECUTE (3) */ @@ -576,13 +502,12 @@ void arm9tdmi_write_xpsr_im8(target_t *target, uint8_t xpsr_im, int rot, int sps } } -void arm9tdmi_write_core_regs(target_t *target, uint32_t mask, uint32_t core_regs[16]) +void arm9tdmi_write_core_regs(struct target *target, + uint32_t mask, uint32_t core_regs[16]) { int i; - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* LDMIA r0-15, [r0] at debug speed * register values will start to appear on 4th DCLK @@ -594,8 +519,7 @@ void arm9tdmi_write_core_regs(target_t *target, uint32_t mask, uint32_t core_reg /* fetch NOP, LDM in EXECUTE stage (1st cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); - for (i = 0; i <= 15; i++) - { + for (i = 0; i <= 15; i++) { if (mask & (1 << i)) /* nothing fetched, LDM still in EXECUTE (1 + i cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, core_regs[i], NULL, 0); @@ -603,84 +527,70 @@ void arm9tdmi_write_core_regs(target_t *target, uint32_t mask, uint32_t core_reg arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); } -void arm9tdmi_load_word_regs(target_t *target, uint32_t mask) +void arm9tdmi_load_word_regs(struct target *target, uint32_t mask) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* put system-speed load-multiple into the pipeline */ arm9tdmi_clock_out(jtag_info, ARMV4_5_LDMIA(0, mask & 0xffff, 0, 1), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_load_hword_reg(target_t *target, int num) +void arm9tdmi_load_hword_reg(struct target *target, int num) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* put system-speed load half-word into the pipeline */ arm9tdmi_clock_out(jtag_info, ARMV4_5_LDRH_IP(num, 0), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_load_byte_reg(target_t *target, int num) +void arm9tdmi_load_byte_reg(struct target *target, int num) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* put system-speed load byte into the pipeline */ arm9tdmi_clock_out(jtag_info, ARMV4_5_LDRB_IP(num, 0), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_store_word_regs(target_t *target, uint32_t mask) +void arm9tdmi_store_word_regs(struct target *target, uint32_t mask) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* put system-speed store-multiple into the pipeline */ arm9tdmi_clock_out(jtag_info, ARMV4_5_STMIA(0, mask, 0, 1), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_store_hword_reg(target_t *target, int num) +void arm9tdmi_store_hword_reg(struct target *target, int num) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* put system-speed store half-word into the pipeline */ arm9tdmi_clock_out(jtag_info, ARMV4_5_STRH_IP(num, 0), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_store_byte_reg(target_t *target, int num) +void arm9tdmi_store_byte_reg(struct target *target, int num) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* put system-speed store byte into the pipeline */ arm9tdmi_clock_out(jtag_info, ARMV4_5_STRB_IP(num, 0), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_write_pc(target_t *target, uint32_t pc) +static void arm9tdmi_write_pc(struct target *target, uint32_t pc) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; /* LDMIA r0-15, [r0] at debug speed * register values will start to appear on 4th DCLK @@ -701,26 +611,23 @@ void arm9tdmi_write_pc(target_t *target, uint32_t pc) arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); } -void arm9tdmi_branch_resume(target_t *target) +void arm9tdmi_branch_resume(struct target *target) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm_jtag *jtag_info = &arm7_9->jtag_info; arm9tdmi_clock_out(jtag_info, ARMV4_5_B(0xfffffc, 0), 0, NULL, 0); arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 1); } -void arm9tdmi_branch_resume_thumb(target_t *target) +static void arm9tdmi_branch_resume_thumb(struct target *target) { LOG_DEBUG("-"); - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; - reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT]; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct arm *arm = &arm7_9->arm; + struct arm_jtag *jtag_info = &arm7_9->jtag_info; + struct reg *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT]; /* LDMIA r0-15, [r0] at debug speed * register values will start to appear on 4th DCLK @@ -732,7 +639,8 @@ void arm9tdmi_branch_resume_thumb(target_t *target) /* fetch NOP, LDM in EXECUTE stage (1st cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); /* nothing fetched, LDM in EXECUTE stage (2nd cycle) */ - arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32) | 1, NULL, 0); + arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, + buf_get_u32(arm->pc->value, 0, 32) | 1, NULL, 0); /* nothing fetched, LDM in EXECUTE stage (3rd cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_NOP, 0, NULL, 0); @@ -759,7 +667,8 @@ void arm9tdmi_branch_resume_thumb(target_t *target) /* fetch NOP, LDR in Execute */ arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, 0, NULL, 0); /* nothing fetched, LDR in EXECUTE stage (2nd cycle) */ - arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, buf_get_u32(armv4_5->core_cache->reg_list[0].value, 0, 32), NULL, 0); + arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, + buf_get_u32(arm->core_cache->reg_list[0].value, 0, 32), NULL, 0); /* nothing fetched, LDR in EXECUTE stage (3rd cycle) */ arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, 0, NULL, 0); @@ -772,108 +681,47 @@ void arm9tdmi_branch_resume_thumb(target_t *target) arm9tdmi_clock_out(jtag_info, ARMV4_5_T_NOP, 0, NULL, 0); } -void arm9tdmi_enable_single_step(target_t *target, uint32_t next_pc) +void arm9tdmi_enable_single_step(struct target *target, uint32_t next_pc) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); - if (arm7_9->has_single_step) - { + if (arm7_9->has_single_step) { buf_set_u32(arm7_9->eice_cache->reg_list[EICE_DBG_CTRL].value, 3, 1, 1); embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]); - } - else - { + } else arm7_9_enable_eice_step(target, next_pc); - } } -void arm9tdmi_disable_single_step(target_t *target) +void arm9tdmi_disable_single_step(struct target *target) { - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); - if (arm7_9->has_single_step) - { + if (arm7_9->has_single_step) { buf_set_u32(arm7_9->eice_cache->reg_list[EICE_DBG_CTRL].value, 3, 1, 0); embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]); - } - else - { + } else arm7_9_disable_eice_step(target); - } } -void arm9tdmi_build_reg_cache(target_t *target) +static void arm9tdmi_build_reg_cache(struct target *target) { - reg_cache_t **cache_p = register_get_last_cache_p(&target->reg_cache); - /* get pointers to arch-specific information */ - armv4_5_common_t *armv4_5 = target->arch_info; + struct reg_cache **cache_p = register_get_last_cache_p(&target->reg_cache); + struct arm *arm = target_to_arm(target); - (*cache_p) = armv4_5_build_reg_cache(target, armv4_5); - armv4_5->core_cache = (*cache_p); + (*cache_p) = arm_build_reg_cache(target, arm); } -int arm9tdmi_examine(struct target_s *target) +int arm9tdmi_init_target(struct command_context *cmd_ctx, + struct target *target) { - /* get pointers to arch-specific information */ - int retval; - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9 = armv4_5->arch_info; - if (!target_was_examined(target)) - { - reg_cache_t **cache_p = register_get_last_cache_p(&target->reg_cache); - reg_cache_t *t; - /* one extra register (vector catch) */ - t = embeddedice_build_reg_cache(target, arm7_9); - if (t == NULL) - return ERROR_FAIL; - (*cache_p) = t; - arm7_9->eice_cache = (*cache_p); - - if (arm7_9->etm_ctx) - { - arm_jtag_t *jtag_info = &arm7_9->jtag_info; - (*cache_p)->next = etm_build_reg_cache(target, jtag_info, arm7_9->etm_ctx); - arm7_9->etm_ctx->reg_cache = (*cache_p)->next; - } - target_set_examined(target); - } - if ((retval = embeddedice_setup(target)) != ERROR_OK) - return retval; - if ((retval = arm7_9_setup(target)) != ERROR_OK) - return retval; - if (arm7_9->etm_ctx) - { - if ((retval = etm_setup(target)) != ERROR_OK) - return retval; - } - return ERROR_OK; -} - -int arm9tdmi_init_target(struct command_context_s *cmd_ctx, struct target_s *target) -{ - arm9tdmi_build_reg_cache(target); - - return ERROR_OK; -} - -int arm9tdmi_quit(void) -{ + arm_semihosting_init(target); return ERROR_OK; } -int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, jtag_tap_t *tap) +int arm9tdmi_init_arch_info(struct target *target, + struct arm7_9_common *arm7_9, struct jtag_tap *tap) { - armv4_5_common_t *armv4_5; - arm7_9_common_t *arm7_9; - - arm7_9 = &arm9tdmi->arm7_9_common; - armv4_5 = &arm7_9->armv4_5_common; - /* prepare JTAG information for the new target */ arm7_9->jtag_info.tap = tap; arm7_9->jtag_info.scann_size = 5; @@ -904,21 +752,18 @@ int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, jtag_ arm7_9->enable_single_step = arm9tdmi_enable_single_step; arm7_9->disable_single_step = arm9tdmi_disable_single_step; - arm7_9->pre_debug_entry = NULL; + arm7_9->write_memory = arm7_9_write_memory; + arm7_9->bulk_write_memory = arm7_9_bulk_write_memory; + arm7_9->post_debug_entry = NULL; arm7_9->pre_restore_context = NULL; - arm7_9->post_restore_context = NULL; /* initialize arch-specific breakpoint handling */ arm7_9->arm_bkpt = 0xdeeedeee; arm7_9->thumb_bkpt = 0xdeee; arm7_9->dbgreq_adjust_pc = 3; - arm7_9->arch_info = arm9tdmi; - - arm9tdmi->common_magic = ARM9TDMI_COMMON_MAGIC; - arm9tdmi->arch_info = NULL; arm7_9_init_arch_info(target, arm7_9); @@ -931,76 +776,34 @@ int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, jtag_ return ERROR_OK; } -int arm9tdmi_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p, arm9tdmi_common_t **arm9tdmi_p) -{ - armv4_5_common_t *armv4_5 = target->arch_info; - arm7_9_common_t *arm7_9; - arm9tdmi_common_t *arm9tdmi; - - if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC) - { - return -1; - } - - arm7_9 = armv4_5->arch_info; - if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC) - { - return -1; - } - - arm9tdmi = arm7_9->arch_info; - if (arm9tdmi->common_magic != ARM9TDMI_COMMON_MAGIC) - { - return -1; - } - - *armv4_5_p = armv4_5; - *arm7_9_p = arm7_9; - *arm9tdmi_p = arm9tdmi; - - return ERROR_OK; -} - -int arm9tdmi_target_create(struct target_s *target, Jim_Interp *interp) +static int arm9tdmi_target_create(struct target *target, Jim_Interp *interp) { - arm9tdmi_common_t *arm9tdmi = calloc(1,sizeof(arm9tdmi_common_t)); + struct arm7_9_common *arm7_9 = calloc(1, sizeof(struct arm7_9_common)); - arm9tdmi_init_arch_info(target, arm9tdmi, target->tap); - arm9tdmi->arm7_9_common.armv4_5_common.is_armv4 = true; + arm9tdmi_init_arch_info(target, arm7_9, target->tap); + arm7_9->arm.is_armv4 = true; return ERROR_OK; } -int arm9tdmi_register_commands(struct command_context_s *cmd_ctx) -{ - int retval; - command_t *arm9tdmi_cmd; - - retval = arm7_9_register_commands(cmd_ctx); - arm9tdmi_cmd = register_command(cmd_ctx, NULL, "arm9tdmi", - NULL, COMMAND_ANY, - "arm9tdmi specific commands"); - register_command(cmd_ctx, arm9tdmi_cmd, "vector_catch", - handle_arm9tdmi_catch_vectors_command, COMMAND_EXEC, - "catch arm9 vectors ['all'|'none'|'']"); - - return retval; -} - -int handle_arm9tdmi_catch_vectors_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +COMMAND_HANDLER(handle_arm9tdmi_catch_vectors_command) { - target_t *target = get_current_target(cmd_ctx); - armv4_5_common_t *armv4_5; - arm7_9_common_t *arm7_9; - arm9tdmi_common_t *arm9tdmi; - reg_t *vector_catch; + struct target *target = get_current_target(CMD_CTX); + struct arm7_9_common *arm7_9 = target_to_arm7_9(target); + struct reg *vector_catch; uint32_t vector_catch_value; - int i, j; - if (arm9tdmi_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi) != ERROR_OK) - { - command_print(cmd_ctx, "current target isn't an ARM9 based target"); - return ERROR_OK; + if (!target_was_examined(target)) { + LOG_ERROR("Target not examined yet"); + return ERROR_FAIL; + } + + /* it's uncommon, but some ARM7 chips can support this */ + if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC + || !arm7_9->has_vector_catch) { + command_print(CMD, "target doesn't have EmbeddedICE " + "with vector_catch"); + return ERROR_TARGET_INVALID; } vector_catch = &arm7_9->eice_cache->reg_list[EICE_VEC_CATCH]; @@ -1012,41 +815,31 @@ int handle_arm9tdmi_catch_vectors_command(struct command_context_s *cmd_ctx, cha /* get the current setting */ vector_catch_value = buf_get_u32(vector_catch->value, 0, 8); - if (argc > 0) - { + if (CMD_ARGC > 0) { vector_catch_value = 0x0; - if (strcmp(args[0], "all") == 0) - { + if (strcmp(CMD_ARGV[0], "all") == 0) vector_catch_value = 0xdf; - } - else if (strcmp(args[0], "none") == 0) - { + else if (strcmp(CMD_ARGV[0], "none") == 0) { /* do nothing */ - } - else - { - for (i = 0; i < argc; i++) - { + } else { + for (unsigned i = 0; i < CMD_ARGC; i++) { /* go through list of vectors */ - for (j = 0; arm9tdmi_vectors[j].name; j++) - { - if (strcmp(args[i], arm9tdmi_vectors[j].name) == 0) - { + unsigned j; + for (j = 0; arm9tdmi_vectors[j].name; j++) { + if (strcmp(CMD_ARGV[i], arm9tdmi_vectors[j].name) == 0) { vector_catch_value |= arm9tdmi_vectors[j].value; break; } } /* complain if vector wasn't found */ - if (!arm9tdmi_vectors[j].name) - { - command_print(cmd_ctx, "vector '%s' not found, leaving current setting unchanged", args[i]); + if (!arm9tdmi_vectors[j].name) { + command_print(CMD, "vector '%s' not found, leaving current setting unchanged", CMD_ARGV[i]); /* reread current setting */ vector_catch_value = buf_get_u32( vector_catch->value, 0, 8); - break; } } @@ -1057,15 +850,77 @@ int handle_arm9tdmi_catch_vectors_command(struct command_context_s *cmd_ctx, cha embeddedice_store_reg(vector_catch); } - /* output current settings (skip RESERVED vector) */ - for (i = 0; i < 8; i++) - { - if (i != 5) - { - command_print(cmd_ctx, "%s: %s", arm9tdmi_vectors[i].name, - (vector_catch_value & (1 << i)) ? "catch" : "don't catch"); - } + /* output current settings */ + for (unsigned i = 0; arm9tdmi_vectors[i].name; i++) { + command_print(CMD, "%s: %s", arm9tdmi_vectors[i].name, + (vector_catch_value & arm9tdmi_vectors[i].value) + ? "catch" : "don't catch"); } return ERROR_OK; } + +static const struct command_registration arm9tdmi_exec_command_handlers[] = { + { + .name = "vector_catch", + .handler = handle_arm9tdmi_catch_vectors_command, + .mode = COMMAND_EXEC, + .help = "Display, after optionally updating, configuration " + "of vector catch unit.", + .usage = "[all|none|(reset|undef|swi|pabt|dabt|irq|fiq)*]", + }, + COMMAND_REGISTRATION_DONE +}; +const struct command_registration arm9tdmi_command_handlers[] = { + { + .chain = arm7_9_command_handlers, + }, + { + .name = "arm9", + .mode = COMMAND_ANY, + .help = "arm9 command group", + .usage = "", + .chain = arm9tdmi_exec_command_handlers, + }, + COMMAND_REGISTRATION_DONE +}; + +/** Holds methods for ARM9TDMI targets. */ +struct target_type arm9tdmi_target = { + .name = "arm9tdmi", + + .poll = arm7_9_poll, + .arch_state = arm_arch_state, + + .target_request_data = arm7_9_target_request_data, + + .halt = arm7_9_halt, + .resume = arm7_9_resume, + .step = arm7_9_step, + + .assert_reset = arm7_9_assert_reset, + .deassert_reset = arm7_9_deassert_reset, + .soft_reset_halt = arm7_9_soft_reset_halt, + + .get_gdb_arch = arm_get_gdb_arch, + .get_gdb_reg_list = arm_get_gdb_reg_list, + + .read_memory = arm7_9_read_memory, + .write_memory = arm7_9_write_memory_opt, + + .checksum_memory = arm_checksum_memory, + .blank_check_memory = arm_blank_check_memory, + + .run_algorithm = armv4_5_run_algorithm, + + .add_breakpoint = arm7_9_add_breakpoint, + .remove_breakpoint = arm7_9_remove_breakpoint, + .add_watchpoint = arm7_9_add_watchpoint, + .remove_watchpoint = arm7_9_remove_watchpoint, + + .commands = arm9tdmi_command_handlers, + .target_create = arm9tdmi_target_create, + .init_target = arm9tdmi_init_target, + .examine = arm7_9_examine, + .check_reset = arm7_9_check_reset, +};