- added myself to copyright on files i remember adding large contributions for over...
[fw/openocd] / src / target / arm9tdmi.c
index 434b5c9931dae5d590a9e1d2d92a3e9d7596c2f4..0937c2abd58657ebe26b74b0808ad8e545e04a4a 100644 (file)
@@ -2,6 +2,9 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
+ *   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     *
@@ -29,6 +32,7 @@
 #include "armv4_5.h"
 #include "embeddedice.h"
 #include "etm.h"
+#include "etb.h"
 #include "log.h"
 #include "jtag.h"
 #include "arm_jtag.h"
 
 /* cli handling */
 int arm9tdmi_register_commands(struct command_context_s *cmd_ctx);
+int handle_arm9tdmi_catch_vectors_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
 
 /* forward declarations */
-int arm9tdmi_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target);
+int arm9tdmi_target_create( struct target_s *target, Jim_Interp *interp );
+
 int arm9tdmi_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
-int arm9tdmi_quit();
+int arm9tdmi_quit(void);
                
 target_type_t arm9tdmi_target =
 {
@@ -55,6 +61,8 @@ target_type_t arm9tdmi_target =
        .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,
@@ -68,7 +76,9 @@ target_type_t arm9tdmi_target =
        .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,
@@ -77,11 +87,25 @@ target_type_t arm9tdmi_target =
        .remove_watchpoint = arm7_9_remove_watchpoint,
 
        .register_commands = arm9tdmi_register_commands,
-       .target_command = arm9tdmi_target_command,
+       .target_create = arm9tdmi_target_create,
        .init_target = arm9tdmi_init_target,
+       .examine = arm9tdmi_examine,
        .quit = arm9tdmi_quit
 };
 
+arm9tdmi_vector_t 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)
 {
        /* get pointers to arch-specific information */
@@ -130,7 +154,7 @@ int arm9tdmi_examine_debug_reason(target_t *target)
                fields[2].in_handler_priv = NULL;
                
                arm_jtag_scann(&arm7_9->jtag_info, 0x1);
-               arm_jtag_set_instr(&arm7_9->jtag_info, arm7_9->jtag_info.intest_instr);
+               arm_jtag_set_instr(&arm7_9->jtag_info, arm7_9->jtag_info.intest_instr, NULL);
 
                jtag_add_dr_scan(3, fields, TAP_PD);
                jtag_execute_queue();
@@ -174,7 +198,8 @@ int arm9tdmi_clock_out(arm_jtag_t *jtag_info, u32 instr, u32 out, u32 *in, int s
        
        jtag_add_end_state(TAP_PD);
        arm_jtag_scann(jtag_info, 0x1);
-       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+       
+       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
                
        fields[0].device = jtag_info->chain_pos;
        fields[0].num_bits = 32;
@@ -224,10 +249,10 @@ int arm9tdmi_clock_out(arm_jtag_t *jtag_info, u32 instr, u32 out, u32 *in, int s
                
                if (in)
                {
-                       DEBUG("instr: 0x%8.8x, out: 0x%8.8x, in: 0x%8.8x", instr, out, *in);
+                       LOG_DEBUG("instr: 0x%8.8x, out: 0x%8.8x, in: 0x%8.8x", instr, out, *in);
                }
                else
-                       DEBUG("instr: 0x%8.8x, out: 0x%8.8x", instr, out);
+                       LOG_DEBUG("instr: 0x%8.8x, out: 0x%8.8x", instr, out);
        }
 #endif
 
@@ -241,7 +266,8 @@ int arm9tdmi_clock_data_in(arm_jtag_t *jtag_info, u32 *in)
 
        jtag_add_end_state(TAP_PD);
        arm_jtag_scann(jtag_info, 0x1);
-       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+       
+       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
                
        fields[0].device = jtag_info->chain_pos;
        fields[0].num_bits = 32;
@@ -283,11 +309,11 @@ int arm9tdmi_clock_data_in(arm_jtag_t *jtag_info, u32 *in)
                        
                if (in)
                {
-                       DEBUG("in: 0x%8.8x", *in);
+                       LOG_DEBUG("in: 0x%8.8x", *in);
                }
                else
                {
-                       ERROR("BUG: called with in == NULL");
+                       LOG_ERROR("BUG: called with in == NULL");
                }
        }
 #endif
@@ -302,10 +328,11 @@ int arm9tdmi_clock_data_in(arm_jtag_t *jtag_info, u32 *in)
 int arm9tdmi_clock_data_in_endianness(arm_jtag_t *jtag_info, void *in, int size, int be)
 {
        scan_field_t fields[3];
-
+       
        jtag_add_end_state(TAP_PD);
        arm_jtag_scann(jtag_info, 0x1);
-       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr);
+       
+       arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
                
        fields[0].device = jtag_info->chain_pos;
        fields[0].num_bits = 32;
@@ -358,11 +385,11 @@ int arm9tdmi_clock_data_in_endianness(arm_jtag_t *jtag_info, void *in, int size,
                        
                if (in)
                {
-                       DEBUG("in: 0x%8.8x", *in);
+                       LOG_DEBUG("in: 0x%8.8x", *(u32*)in);
                }
                else
                {
-                       ERROR("BUG: called with in == NULL");
+                       LOG_ERROR("BUG: called with in == NULL");
                }
        }
 #endif
@@ -522,7 +549,7 @@ void arm9tdmi_write_xpsr(target_t *target, u32 xpsr, int spsr)
        arm7_9_common_t *arm7_9 = armv4_5->arch_info;
        arm_jtag_t *jtag_info = &arm7_9->jtag_info;
                
-       DEBUG("xpsr: %8.8x, spsr: %i", xpsr, spsr);
+       LOG_DEBUG("xpsr: %8.8x, spsr: %i", xpsr, spsr);
 
        /* MSR1 fetched */
        arm9tdmi_clock_out(jtag_info, ARMV4_5_MSR_IM(xpsr & 0xff, 0, 1, spsr), 0, NULL, 0);
@@ -558,7 +585,7 @@ void arm9tdmi_write_xpsr_im8(target_t *target, u8 xpsr_im, int rot, int spsr)
        arm7_9_common_t *arm7_9 = armv4_5->arch_info;
        arm_jtag_t *jtag_info = &arm7_9->jtag_info;
                
-       DEBUG("xpsr_im: %2.2x, rot: %i, spsr: %i", xpsr_im, rot, spsr);
+       LOG_DEBUG("xpsr_im: %2.2x, rot: %i, spsr: %i", xpsr_im, rot, spsr);
        
        /* MSR fetched */
        arm9tdmi_clock_out(jtag_info, ARMV4_5_MSR_IM(xpsr_im, rot, 1, spsr), 0, NULL, 0);
@@ -723,7 +750,7 @@ void arm9tdmi_branch_resume(target_t *target)
 
 void arm9tdmi_branch_resume_thumb(target_t *target)
 {
-       DEBUG("");
+       LOG_DEBUG("-");
        
        /* get pointers to arch-specific information */
        armv4_5_common_t *armv4_5 = target->arch_info;
@@ -787,7 +814,6 @@ void arm9tdmi_enable_single_step(target_t *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;
-       arm9tdmi_common_t *arm9 = arm7_9->arch_info;
        
        if (arm7_9->has_single_step)
        {
@@ -805,7 +831,6 @@ void arm9tdmi_disable_single_step(target_t *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;
-       arm9tdmi_common_t *arm9 = arm7_9->arch_info;
        
        if (arm7_9->has_single_step)
        {
@@ -823,21 +848,47 @@ void arm9tdmi_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 */
        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;
 
        (*cache_p) = armv4_5_build_reg_cache(target, armv4_5);
        armv4_5->core_cache = (*cache_p);
-       
-       /* one extra register (vector catch) */
-       (*cache_p)->next = embeddedice_build_reg_cache(target, arm7_9);
-       arm7_9->eice_cache = (*cache_p)->next;
+}
+
 
-       if (arm7_9->has_etm)
+int arm9tdmi_examine(struct target_s *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->type->examined)
+       {
+               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->type->examined = 1;
+       }
+       if ((retval=embeddedice_setup(target))!=ERROR_OK)
+               return retval;
+       if ((retval=arm7_9_setup(target))!=ERROR_OK)
+               return retval;
+       if (arm7_9->etm_ctx)
        {
-               (*cache_p)->next->next = etm_build_reg_cache(target, jtag_info, 0);
-               arm7_9->etm_cache = (*cache_p)->next->next;
+               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)
@@ -849,13 +900,13 @@ int arm9tdmi_init_target(struct command_context_s *cmd_ctx, struct target_s *tar
        
 }
 
-int arm9tdmi_quit()
+int arm9tdmi_quit(void)
 {
        
        return ERROR_OK;
 }
 
-int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, int chain_pos, char *variant)
+int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, int chain_pos, const char *variant)
 {
        armv4_5_common_t *armv4_5;
        arm7_9_common_t *arm7_9;
@@ -900,11 +951,9 @@ int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, int c
        arm7_9->post_restore_context = NULL;
 
        /* initialize arch-specific breakpoint handling */
-       buf_set_u32((u8*)(&arm7_9->arm_bkpt), 0, 32, 0xdeeedeee);
-       buf_set_u32((u8*)(&arm7_9->thumb_bkpt), 0, 16, 0xdeee);
+       arm7_9->arm_bkpt = 0xdeeedeee;
+       arm7_9->thumb_bkpt = 0xdeee;
        
-       arm7_9->sw_bkpts_use_wp = 1;
-       arm7_9->sw_bkpts_enabled = 0;
        arm7_9->dbgreq_adjust_pc = 3;
        arm7_9->arch_info = arm9tdmi;
        
@@ -931,25 +980,43 @@ int arm9tdmi_init_arch_info(target_t *target, arm9tdmi_common_t *arm9tdmi, int c
        return ERROR_OK;
 }
 
-/* target arm9tdmi <endianess> <startup_mode> <chain_pos> <variant>*/
-int arm9tdmi_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target)
+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)
 {
-       int chain_pos;
-       char *variant = NULL;
-       arm9tdmi_common_t *arm9tdmi = malloc(sizeof(arm9tdmi_common_t));
-
-       if (argc < 4)
+       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)
        {
-               ERROR("'target arm9tdmi' requires at least one additional argument");
-               exit(-1);
+               return -1;
        }
        
-       chain_pos = strtoul(args[3], NULL, 0);
+       arm9tdmi = arm7_9->arch_info;
+       if (arm9tdmi->common_magic != ARM9TDMI_COMMON_MAGIC)
+       {
+               return -1;
+       }
        
-       if (argc >= 5)
-               variant = args[4];
+       *armv4_5_p = armv4_5;
+       *arm7_9_p = arm7_9;
+       *arm9tdmi_p = arm9tdmi;
        
-       arm9tdmi_init_arch_info(target, arm9tdmi, chain_pos, variant);
+       return ERROR_OK;
+}
+
+
+
+int arm9tdmi_target_create(struct target_s *target, Jim_Interp *interp)
+{
+       arm9tdmi_common_t *arm9tdmi = calloc(1,sizeof(arm9tdmi_common_t));
+
+       arm9tdmi_init_arch_info(target, arm9tdmi, target->chain_position, target->variant);
        
        return ERROR_OK;
 }
@@ -958,9 +1025,97 @@ 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 arm920t vectors ['all'|'none'|'<vec1 vec2 ...>']");
+       
+       
        return ERROR_OK;
 
 }
 
+int handle_arm9tdmi_catch_vectors_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+       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;
+       u32 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 ARM9TDMI based target");
+               return ERROR_OK;
+       }
+       
+       vector_catch = &arm7_9->eice_cache->reg_list[EICE_VEC_CATCH];
+       
+       /* read the vector catch register if necessary */
+       if (!vector_catch->valid)
+               embeddedice_read_reg(vector_catch);
+       
+       /* get the current setting */
+       vector_catch_value = buf_get_u32(vector_catch->value, 0, 32);
+       
+       if (argc > 0)
+       {
+               vector_catch_value = 0x0;
+               if (strcmp(args[0], "all") == 0)
+               {
+                       vector_catch_value = 0xdf;
+               }
+               else if (strcmp(args[0], "none") == 0)
+               {
+                       /* do nothing */
+               }
+               else
+               {
+                       for (i = 0; i < argc; i++)
+                       {
+                               /* go through list of vectors */
+                               for(j = 0; arm9tdmi_vectors[j].name; j++)
+                               {
+                                       if (strcmp(args[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]);
+                                       
+                                       /* reread current setting */
+                                       vector_catch_value = buf_get_u32(vector_catch->value, 0, 32);
+                                       
+                                       break;
+                               }
+                       }
+               }
+               
+               /* store new settings */
+               buf_set_u32(vector_catch->value, 0, 32, vector_catch_value);
+               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");
+               }  
+       }
+
+       return ERROR_OK;
+}