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-rw-r--r--src/target/arm7tdmi.c179
-rw-r--r--src/target/arm7tdmi.h1
2 files changed, 88 insertions, 92 deletions
diff --git a/src/target/arm7tdmi.c b/src/target/arm7tdmi.c
index ec7b4f9e..27a8337f 100644
--- a/src/target/arm7tdmi.c
+++ b/src/target/arm7tdmi.c
@@ -31,57 +31,17 @@
#include "target_type.h"
+/*
+ * For information about ARM7TDMI, see ARM DDI 0210C (r4p1)
+ * or ARM DDI 0029G (r3). "Debug In Depth", Appendix B,
+ * covers JTAG support.
+ */
+
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
-/* forward declarations */
-
-int arm7tdmi_target_create(struct target_s *target,Jim_Interp *interp);
-
-/* target function declarations */
-int arm7tdmi_poll(struct target_s *target);
-int arm7tdmi_halt(target_t *target);
-
-target_type_t arm7tdmi_target =
-{
- .name = "arm7tdmi",
-
- .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 = arm7tdmi_register_commands,
- .target_create = arm7tdmi_target_create,
- .init_target = arm7tdmi_init_target,
- .examine = arm7tdmi_examine,
-};
-
-int arm7tdmi_examine_debug_reason(target_t *target)
+static int arm7tdmi_examine_debug_reason(target_t *target)
{
int retval = ERROR_OK;
/* get pointers to arch-specific information */
@@ -136,7 +96,8 @@ int arm7tdmi_examine_debug_reason(target_t *target)
return ERROR_OK;
}
-static int arm7tdmi_num_bits[]={1, 32};
+static const int arm7tdmi_num_bits[] = {1, 32};
+
static __inline int arm7tdmi_clock_out_inner(arm_jtag_t *jtag_info, uint32_t out, int breakpoint)
{
uint32_t values[2]={breakpoint, flip_u32(out, 32)};
@@ -152,8 +113,13 @@ static __inline int arm7tdmi_clock_out_inner(arm_jtag_t *jtag_info, uint32_t out
return ERROR_OK;
}
-/* put an instruction in the ARM7TDMI pipeline or write the data bus, and optionally read data */
-static __inline int arm7tdmi_clock_out(arm_jtag_t *jtag_info, uint32_t out, uint32_t *deprecated, int breakpoint)
+/* put an instruction in the ARM7TDMI pipeline or write the data bus,
+ * and optionally read data
+ *
+ * FIXME remove the unused "deprecated" parameter
+ */
+static __inline int arm7tdmi_clock_out(arm_jtag_t *jtag_info,
+ uint32_t out, uint32_t *deprecated, int breakpoint)
{
jtag_set_end_state(TAP_DRPAUSE);
arm_jtag_scann(jtag_info, 0x1);
@@ -163,7 +129,7 @@ static __inline int arm7tdmi_clock_out(arm_jtag_t *jtag_info, uint32_t out, uint
}
/* clock the target, reading the databus */
-int arm7tdmi_clock_data_in(arm_jtag_t *jtag_info, uint32_t *in)
+static int arm7tdmi_clock_data_in(arm_jtag_t *jtag_info, uint32_t *in)
{
int retval = ERROR_OK;
scan_field_t fields[2];
@@ -192,21 +158,13 @@ int arm7tdmi_clock_data_in(arm_jtag_t *jtag_info, uint32_t *in)
jtag_add_runtest(0, jtag_get_end_state());
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
-{
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
- return retval;
- }
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ return retval;
- if (in)
- {
- LOG_DEBUG("in: 0x%8.8x", *in);
- }
- else
- {
- LOG_ERROR("BUG: called with in == NULL");
- }
-}
+ if (in)
+ LOG_DEBUG("in: 0x%8.8x", *in);
+ else
+ LOG_ERROR("BUG: called with in == NULL");
#endif
return ERROR_OK;
@@ -243,9 +201,12 @@ void arm_endianness(uint8_t *tmp, void *in, int size, int be, int flip)
}
}
-static int arm7endianness(jtag_callback_data_t arg, jtag_callback_data_t size, jtag_callback_data_t be, jtag_callback_data_t captured)
+static int arm7endianness(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;
+ uint8_t *in = (uint8_t *)arg;
+
arm_endianness((uint8_t *)captured, in, (int)size, (int)be, 1);
return ERROR_OK;
}
@@ -254,7 +215,8 @@ static int arm7endianness(jtag_callback_data_t arg, jtag_callback_data_t size, j
* the *in pointer points to a buffer where elements of 'size' bytes
* are stored in big (be == 1) or little (be == 0) endianness
*/
-int arm7tdmi_clock_data_in_endianness(arm_jtag_t *jtag_info, void *in, int size, int be)
+static int arm7tdmi_clock_data_in_endianness(arm_jtag_t *jtag_info,
+ void *in, int size, int be)
{
int retval = ERROR_OK;
scan_field_t fields[2];
@@ -303,7 +265,8 @@ int arm7tdmi_clock_data_in_endianness(arm_jtag_t *jtag_info, void *in, int size,
return ERROR_OK;
}
-void arm7tdmi_change_to_arm(target_t *target, uint32_t *r0, uint32_t *pc)
+static void arm7tdmi_change_to_arm(target_t *target,
+ uint32_t *r0, uint32_t *pc)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -360,7 +323,8 @@ void arm7tdmi_change_to_arm(target_t *target, uint32_t *r0, uint32_t *pc)
* The solution is to arrange for a large out/in scan in this loop and
* and convert data afterwards.
*/
-void arm7tdmi_read_core_regs(target_t *target, uint32_t mask, uint32_t* core_regs[16])
+static void arm7tdmi_read_core_regs(target_t *target,
+ uint32_t mask, uint32_t* core_regs[16])
{
int i;
/* get pointers to arch-specific information */
@@ -386,7 +350,8 @@ void arm7tdmi_read_core_regs(target_t *target, uint32_t mask, uint32_t* core_reg
}
}
-void arm7tdmi_read_core_regs_target_buffer(target_t *target, uint32_t mask, void* buffer, int size)
+static void arm7tdmi_read_core_regs_target_buffer(target_t *target,
+ uint32_t mask, void* buffer, int size)
{
int i;
/* get pointers to arch-specific information */
@@ -429,7 +394,7 @@ void arm7tdmi_read_core_regs_target_buffer(target_t *target, uint32_t mask, void
}
}
-void arm7tdmi_read_xpsr(target_t *target, uint32_t *xpsr, int spsr)
+static void arm7tdmi_read_xpsr(target_t *target, uint32_t *xpsr, int spsr)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -449,7 +414,7 @@ void arm7tdmi_read_xpsr(target_t *target, uint32_t *xpsr, int spsr)
arm7tdmi_clock_data_in(jtag_info, xpsr);
}
-void arm7tdmi_write_xpsr(target_t *target, uint32_t xpsr, int spsr)
+static void arm7tdmi_write_xpsr(target_t *target, uint32_t xpsr, int spsr)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -480,7 +445,8 @@ void arm7tdmi_write_xpsr(target_t *target, uint32_t xpsr, int spsr)
arm7tdmi_clock_out(jtag_info, ARMV4_5_NOP, NULL, 0);
}
-void arm7tdmi_write_xpsr_im8(target_t *target, uint8_t xpsr_im, int rot, int spsr)
+static void arm7tdmi_write_xpsr_im8(target_t *target,
+ uint8_t xpsr_im, int rot, int spsr)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -499,7 +465,8 @@ void arm7tdmi_write_xpsr_im8(target_t *target, uint8_t xpsr_im, int rot, int sps
arm7tdmi_clock_out(jtag_info, ARMV4_5_NOP, NULL, 0);
}
-void arm7tdmi_write_core_regs(target_t *target, uint32_t mask, uint32_t core_regs[16])
+static void arm7tdmi_write_core_regs(target_t *target,
+ uint32_t mask, uint32_t core_regs[16])
{
int i;
/* get pointers to arch-specific information */
@@ -526,7 +493,7 @@ void arm7tdmi_write_core_regs(target_t *target, uint32_t mask, uint32_t core_reg
arm7tdmi_clock_out_inner(jtag_info, ARMV4_5_NOP, 0);
}
-void arm7tdmi_load_word_regs(target_t *target, uint32_t mask)
+static void arm7tdmi_load_word_regs(target_t *target, uint32_t mask)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -539,7 +506,7 @@ void arm7tdmi_load_word_regs(target_t *target, uint32_t mask)
arm7tdmi_clock_out(jtag_info, ARMV4_5_LDMIA(0, mask & 0xffff, 0, 1), NULL, 0);
}
-void arm7tdmi_load_hword_reg(target_t *target, int num)
+static void arm7tdmi_load_hword_reg(target_t *target, int num)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -552,7 +519,7 @@ void arm7tdmi_load_hword_reg(target_t *target, int num)
arm7tdmi_clock_out(jtag_info, ARMV4_5_LDRH_IP(num, 0), NULL, 0);
}
-void arm7tdmi_load_byte_reg(target_t *target, int num)
+static void arm7tdmi_load_byte_reg(target_t *target, int num)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -565,7 +532,7 @@ void arm7tdmi_load_byte_reg(target_t *target, int num)
arm7tdmi_clock_out(jtag_info, ARMV4_5_LDRB_IP(num, 0), NULL, 0);
}
-void arm7tdmi_store_word_regs(target_t *target, uint32_t mask)
+static void arm7tdmi_store_word_regs(target_t *target, uint32_t mask)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -578,7 +545,7 @@ void arm7tdmi_store_word_regs(target_t *target, uint32_t mask)
arm7tdmi_clock_out(jtag_info, ARMV4_5_STMIA(0, mask, 0, 1), NULL, 0);
}
-void arm7tdmi_store_hword_reg(target_t *target, int num)
+static void arm7tdmi_store_hword_reg(target_t *target, int num)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -591,7 +558,7 @@ void arm7tdmi_store_hword_reg(target_t *target, int num)
arm7tdmi_clock_out(jtag_info, ARMV4_5_STRH_IP(num, 0), NULL, 0);
}
-void arm7tdmi_store_byte_reg(target_t *target, int num)
+static void arm7tdmi_store_byte_reg(target_t *target, int num)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -604,7 +571,7 @@ void arm7tdmi_store_byte_reg(target_t *target, int num)
arm7tdmi_clock_out(jtag_info, ARMV4_5_STRB_IP(num, 0), NULL, 0);
}
-void arm7tdmi_write_pc(target_t *target, uint32_t pc)
+static void arm7tdmi_write_pc(target_t *target, uint32_t pc)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -631,7 +598,7 @@ void arm7tdmi_write_pc(target_t *target, uint32_t pc)
arm7tdmi_clock_out_inner(jtag_info, ARMV4_5_NOP, 0);
}
-void arm7tdmi_branch_resume(target_t *target)
+static void arm7tdmi_branch_resume(target_t *target)
{
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
@@ -642,7 +609,7 @@ void arm7tdmi_branch_resume(target_t *target)
arm7tdmi_clock_out_inner(jtag_info, ARMV4_5_B(0xfffffa, 0), 0);
}
-void arm7tdmi_branch_resume_thumb(target_t *target)
+static void arm7tdmi_branch_resume_thumb(target_t *target)
{
LOG_DEBUG("-");
@@ -703,7 +670,7 @@ void arm7tdmi_branch_resume_thumb(target_t *target)
arm7tdmi_clock_out(jtag_info, ARMV4_5_T_B(0x7f8), NULL, 0);
}
-void arm7tdmi_build_reg_cache(target_t *target)
+static void arm7tdmi_build_reg_cache(target_t *target)
{
reg_cache_t **cache_p = register_get_last_cache_p(&target->reg_cache);
/* get pointers to arch-specific information */
@@ -814,7 +781,7 @@ int arm7tdmi_init_arch_info(target_t *target, arm7tdmi_common_t *arm7tdmi, jtag_
return ERROR_OK;
}
-int arm7tdmi_target_create(struct target_s *target, Jim_Interp *interp)
+static int arm7tdmi_target_create(struct target_s *target, Jim_Interp *interp)
{
arm7tdmi_common_t *arm7tdmi;
@@ -825,11 +792,41 @@ int arm7tdmi_target_create(struct target_s *target, Jim_Interp *interp)
return ERROR_OK;
}
-int arm7tdmi_register_commands(struct command_context_s *cmd_ctx)
+/** Holds methods for ARM7TDMI targets. */
+target_type_t arm7tdmi_target =
{
- int retval;
+ .name = "arm7tdmi",
- retval = arm7_9_register_commands(cmd_ctx);
+ .poll = arm7_9_poll,
+ .arch_state = armv4_5_arch_state,
- return retval;
-}
+ .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 = arm7_9_register_commands,
+ .target_create = arm7tdmi_target_create,
+ .init_target = arm7tdmi_init_target,
+ .examine = arm7tdmi_examine,
+};
diff --git a/src/target/arm7tdmi.h b/src/target/arm7tdmi.h
index b3ece44e..da5c0401 100644
--- a/src/target/arm7tdmi.h
+++ b/src/target/arm7tdmi.h
@@ -34,7 +34,6 @@ typedef struct arm7tdmi_common_s
arm7_9_common_t arm7_9_common;
} arm7tdmi_common_t;
-int arm7tdmi_register_commands(struct command_context_s *cmd_ctx);
int arm7tdmi_init_arch_info(target_t *target, arm7tdmi_common_t *arm7tdmi, jtag_tap_t *tap);
int arm7tdmi_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
int arm7tdmi_examine(struct target_s *target);