ARM720: remove exports and forward decls

Unneeded exports cause confusion about the module interfaces.
Make all functions static.  Add a short header comment.

The forward decls are just code clutter; remove them, by moving
their references after definitions.  This is another file which
never needed even one internal forward declaration.

Remove unneeded indirection for the write_memory() method.  Make
a table static, remove a can't-happen case with nasty exit().

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell 2009-11-05 20:36:27 -08:00
parent dd96b2c28e
commit 1e57376c1a
1 changed files with 95 additions and 119 deletions

View File

@ -29,70 +29,17 @@
#include "target_type.h"
/*
* ARM720 is an ARM7TDMI-S with MMU and ETM7. For information, see
* ARM DDI 0229C especially Chapter 9 about debug support.
*/
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
/* cli handling */
int arm720t_register_commands(struct command_context_s *cmd_ctx);
int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* forward declarations */
int arm720t_target_create(struct target_s *target,Jim_Interp *interp);
int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
int arm720t_arch_state(struct target_s *target);
int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
int arm720t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
int arm720t_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
int arm720t_soft_reset_halt(struct target_s *target);
static int arm720t_mrc(target_t *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value);
static int arm720t_mcr(target_t *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value);
target_type_t arm720t_target =
{
.name = "arm720t",
.poll = arm7_9_poll,
.arch_state = arm720t_arch_state,
.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 = arm720t_soft_reset_halt,
.get_gdb_reg_list = armv4_5_get_gdb_reg_list,
.read_memory = arm720t_read_memory,
.write_memory = arm720t_write_memory,
.read_phys_memory = arm720t_read_phys_memory,
.write_phys_memory = arm720t_write_phys_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 = arm720t_register_commands,
.target_create = arm720t_target_create,
.init_target = arm720t_init_target,
.examine = arm7tdmi_examine,
.mrc = arm720t_mrc,
.mcr = arm720t_mcr,
};
int arm720t_scan_cp15(target_t *target, uint32_t out, uint32_t *in, int instruction, int clock)
static int arm720t_scan_cp15(target_t *target,
uint32_t out, uint32_t *in, int instruction, int clock)
{
int retval = ERROR_OK;
armv4_5_common_t *armv4_5 = target->arch_info;
@ -154,7 +101,7 @@ int arm720t_scan_cp15(target_t *target, uint32_t out, uint32_t *in, int instruct
return ERROR_OK;
}
int arm720t_read_cp15(target_t *target, uint32_t opcode, uint32_t *value)
static int arm720t_read_cp15(target_t *target, uint32_t opcode, uint32_t *value)
{
/* fetch CP15 opcode */
arm720t_scan_cp15(target, opcode, NULL, 1, 1);
@ -171,7 +118,7 @@ int arm720t_read_cp15(target_t *target, uint32_t opcode, uint32_t *value)
return ERROR_OK;
}
int arm720t_write_cp15(target_t *target, uint32_t opcode, uint32_t value)
static int arm720t_write_cp15(target_t *target, uint32_t opcode, uint32_t value)
{
/* fetch CP15 opcode */
arm720t_scan_cp15(target, opcode, NULL, 1, 1);
@ -187,7 +134,7 @@ int arm720t_write_cp15(target_t *target, uint32_t opcode, uint32_t value)
return ERROR_OK;
}
uint32_t arm720t_get_ttb(target_t *target)
static uint32_t arm720t_get_ttb(target_t *target)
{
uint32_t ttb = 0x0;
@ -199,7 +146,8 @@ uint32_t arm720t_get_ttb(target_t *target)
return ttb;
}
void arm720t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
static void arm720t_disable_mmu_caches(target_t *target,
int mmu, int d_u_cache, int i_cache)
{
uint32_t cp15_control;
@ -216,7 +164,8 @@ void arm720t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_
arm720t_write_cp15(target, 0xee010f10, cp15_control);
}
void arm720t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
static void arm720t_enable_mmu_caches(target_t *target,
int mmu, int d_u_cache, int i_cache)
{
uint32_t cp15_control;
@ -233,7 +182,7 @@ void arm720t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_c
arm720t_write_cp15(target, 0xee010f10, cp15_control);
}
void arm720t_post_debug_entry(target_t *target)
static void arm720t_post_debug_entry(target_t *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
@ -255,7 +204,7 @@ void arm720t_post_debug_entry(target_t *target)
jtag_execute_queue();
}
void arm720t_pre_restore_context(target_t *target)
static void arm720t_pre_restore_context(target_t *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
@ -267,7 +216,9 @@ void arm720t_pre_restore_context(target_t *target)
arm720t_write_cp15(target, 0xee060f10, arm720t->far_reg);
}
int arm720t_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p, arm7tdmi_common_t **arm7tdmi_p, arm720t_common_t **arm720t_p)
static int arm720t_get_arch_pointers(target_t *target,
armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p,
arm7tdmi_common_t **arm7tdmi_p, arm720t_common_t **arm720t_p)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9;
@ -305,24 +256,18 @@ int arm720t_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, ar
return ERROR_OK;
}
int arm720t_arch_state(struct target_s *target)
static int arm720t_arch_state(struct target_s *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
char *state[] =
static const char *state[] =
{
"disabled", "enabled"
};
if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
{
LOG_ERROR("BUG: called for a non-ARMv4/5 target");
exit(-1);
}
LOG_USER("target halted in %s state due to %s, current mode: %s\n"
"cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n"
"MMU: %s, Cache: %s",
@ -337,7 +282,8 @@ int arm720t_arch_state(struct target_s *target)
return ERROR_OK;
}
int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
static int arm720t_read_memory(struct target_s *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
int retval;
armv4_5_common_t *armv4_5 = target->arch_info;
@ -357,18 +303,8 @@ int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size
return retval;
}
int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
int retval;
if ((retval = arm7_9_write_memory(target, address, size, count, buffer)) != ERROR_OK)
return retval;
return retval;
}
int arm720t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
static int arm720t_read_phys_memory(struct target_s *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
@ -378,7 +314,8 @@ int arm720t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t
return armv4_5_mmu_read_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
}
int arm720t_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
static int arm720t_write_phys_memory(struct target_s *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
@ -388,8 +325,7 @@ int arm720t_write_phys_memory(struct target_s *target, uint32_t address, uint32_
return armv4_5_mmu_write_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
}
int arm720t_soft_reset_halt(struct target_s *target)
static int arm720t_soft_reset_halt(struct target_s *target)
{
int retval = ERROR_OK;
armv4_5_common_t *armv4_5 = target->arch_info;
@ -460,15 +396,13 @@ int arm720t_soft_reset_halt(struct target_s *target)
return ERROR_OK;
}
int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
static int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
{
arm7tdmi_init_target(cmd_ctx, target);
return ERROR_OK;
return arm7tdmi_init_target(cmd_ctx, target);
}
int arm720t_init_arch_info(target_t *target, arm720t_common_t *arm720t, jtag_tap_t *tap)
static int arm720t_init_arch_info(target_t *target,
arm720t_common_t *arm720t, jtag_tap_t *tap)
{
arm7tdmi_common_t *arm7tdmi = &arm720t->arm7tdmi_common;
arm7_9_common_t *arm7_9 = &arm7tdmi->arm7_9_common;
@ -493,31 +427,15 @@ int arm720t_init_arch_info(target_t *target, arm720t_common_t *arm720t, jtag_tap
return ERROR_OK;
}
int arm720t_target_create(struct target_s *target, Jim_Interp *interp)
static int arm720t_target_create(struct target_s *target, Jim_Interp *interp)
{
arm720t_common_t *arm720t = calloc(1,sizeof(arm720t_common_t));
arm720t_init_arch_info(target, arm720t, target->tap);
return ERROR_OK;
return arm720t_init_arch_info(target, arm720t, target->tap);
}
int arm720t_register_commands(struct command_context_s *cmd_ctx)
{
int retval;
command_t *arm720t_cmd;
retval = arm7tdmi_register_commands(cmd_ctx);
arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t", NULL, COMMAND_ANY, "arm720t specific commands");
register_command(cmd_ctx, arm720t_cmd, "cp15", arm720t_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <opcode> [value]");
return ERROR_OK;
}
int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
static int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx,
char *cmd, char **args, int argc)
{
int retval;
target_t *target = get_current_target(cmd_ctx);
@ -580,7 +498,6 @@ int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, ch
return ERROR_OK;
}
static int arm720t_mrc(target_t *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
{
if (cpnum!=15)
@ -604,4 +521,63 @@ static int arm720t_mcr(target_t *target, int cpnum, uint32_t op1, uint32_t op2,
return arm720t_write_cp15(target, mrc_opcode(cpnum, op1, op2, CRn, CRm), value);
}
static int arm720t_register_commands(struct command_context_s *cmd_ctx)
{
int retval;
command_t *arm720t_cmd;
retval = arm7_9_register_commands(cmd_ctx);
arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t",
NULL, COMMAND_ANY,
"arm720t specific commands");
register_command(cmd_ctx, arm720t_cmd, "cp15",
arm720t_handle_cp15_command, COMMAND_EXEC,
"display/modify cp15 register <opcode> [value]");
return ERROR_OK;
}
/** Holds methods for ARM720 targets. */
target_type_t arm720t_target =
{
.name = "arm720t",
.poll = arm7_9_poll,
.arch_state = arm720t_arch_state,
.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 = arm720t_soft_reset_halt,
.get_gdb_reg_list = armv4_5_get_gdb_reg_list,
.read_memory = arm720t_read_memory,
.write_memory = arm7_9_write_memory,
.read_phys_memory = arm720t_read_phys_memory,
.write_phys_memory = arm720t_write_phys_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 = arm720t_register_commands,
.target_create = arm720t_target_create,
.init_target = arm720t_init_target,
.examine = arm7tdmi_examine,
.mrc = arm720t_mrc,
.mcr = arm720t_mcr,
};