Various doc/comment updates
[openocd.git] / src / target / armv7a.c
index ea883c16d682ba294fe8ad8624a317f58f48d420..fe87fee45496fd78212e391ead900b2e340480ee 100644 (file)
 #include "config.h"
 #endif
 
-#include "replacements.h"
+#include <helper/replacements.h>
 
 #include "armv7a.h"
 #include "arm_disassembler.h"
 
 #include "register.h"
-#include "binarybuffer.h"
-#include "command.h"
+#include <helper/binarybuffer.h>
+#include <helper/command.h>
 
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+#include "arm_opcodes.h"
+
 
 static void armv7a_show_fault_registers(struct target *target)
 {
        uint32_t dfsr, ifsr, dfar, ifar;
        struct armv7a_common *armv7a = target_to_armv7a(target);
-
-       armv7a->read_cp15(target, 0, 0, 5, 0, &dfsr);
-       armv7a->read_cp15(target, 0, 1, 5, 0, &ifsr);
-       armv7a->read_cp15(target, 0, 0, 6, 0, &dfar);
-       armv7a->read_cp15(target, 0, 2, 6, 0, &ifar);
+       struct arm_dpm *dpm = armv7a->armv4_5_common.dpm;
+       int retval;
+
+       retval = dpm->prepare(dpm);
+       if (retval != ERROR_OK)
+               return;
+
+       /* ARMV4_5_MRC(cpnum, op1, r0, CRn, CRm, op2) */
+
+       /* c5/c0 - {data, instruction} fault status registers */
+       retval = dpm->instr_read_data_r0(dpm,
+                       ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
+                       &dfsr);
+       if (retval != ERROR_OK)
+               goto done;
+
+       retval = dpm->instr_read_data_r0(dpm,
+                       ARMV4_5_MRC(15, 0, 0, 5, 0, 1),
+                       &ifsr);
+       if (retval != ERROR_OK)
+               goto done;
+
+       /* c6/c0 - {data, instruction} fault address registers */
+       retval = dpm->instr_read_data_r0(dpm,
+                       ARMV4_5_MRC(15, 0, 0, 6, 0, 0),
+                       &dfar);
+       if (retval != ERROR_OK)
+               goto done;
+
+       retval = dpm->instr_read_data_r0(dpm,
+                       ARMV4_5_MRC(15, 0, 0, 6, 0, 2),
+                       &ifar);
+       if (retval != ERROR_OK)
+               goto done;
 
        LOG_USER("Data fault registers        DFSR: %8.8" PRIx32
                        ", DFAR: %8.8" PRIx32, dfsr, dfar);
        LOG_USER("Instruction fault registers IFSR: %8.8" PRIx32
                        ", IFAR: %8.8" PRIx32, ifsr, ifar);
 
+done:
+       /* (void) */ dpm->finish(dpm);
 }
 
 int armv7a_arch_state(struct target *target)
@@ -59,7 +92,7 @@ int armv7a_arch_state(struct target *target)
        };
 
        struct armv7a_common *armv7a = target_to_armv7a(target);
-       struct armv4_5_common_s *armv4_5 = &armv7a->armv4_5_common;
+       struct arm *armv4_5 = &armv7a->armv4_5_common;
 
        if (armv7a->common_magic != ARMV7_COMMON_MAGIC)
        {
@@ -67,22 +100,18 @@ int armv7a_arch_state(struct target *target)
                return ERROR_INVALID_ARGUMENTS;
        }
 
-       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, D-Cache: %s, I-Cache: %s",
-                armv4_5_state_strings[armv4_5->core_state],
-                Jim_Nvp_value2name_simple(nvp_target_debug_reason,
-                               target->debug_reason)->name,
-                arm_mode_name(armv4_5->core_mode),
-                buf_get_u32(armv4_5->core_cache
-                               ->reg_list[ARMV4_5_CPSR].value, 0, 32),
-                buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32),
+       arm_arch_state(target);
+
+       LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s",
                 state[armv7a->armv4_5_mmu.mmu_enabled],
                 state[armv7a->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled],
                 state[armv7a->armv4_5_mmu.armv4_5_cache.i_cache_enabled]);
 
-       if (armv4_5->core_mode == ARMV4_5_MODE_ABT)
+       if (armv4_5->core_mode == ARM_MODE_ABT)
                armv7a_show_fault_registers(target);
+       if (target->debug_reason == DBG_REASON_WATCHPOINT)
+               LOG_USER("Watchpoint triggered at PC %#08x",
+                               (unsigned) armv7a->dpm.wp_pc);
 
        return ERROR_OK;
 }
@@ -145,33 +174,59 @@ COMMAND_HANDLER(handle_dap_info_command)
        return dap_info_command(CMD_CTX, swjdp, apsel);
 }
 
-int armv7a_register_commands(struct command_context *cmd_ctx)
-{
-       struct command *arm_adi_v5_dap_cmd;
-
-       arm_adi_v5_dap_cmd = register_command(cmd_ctx, NULL, "dap",
-                       NULL, COMMAND_ANY,
-                       "cortex dap specific commands");
-
-       register_command(cmd_ctx, arm_adi_v5_dap_cmd, "info",
-                       handle_dap_info_command, COMMAND_EXEC,
-                       "dap info for ap [num], "
-                       "default currently selected AP");
-       register_command(cmd_ctx, arm_adi_v5_dap_cmd, "apsel",
-                       handle_dap_apsel_command, COMMAND_EXEC,
-                       "select a different AP [num] (default 0)");
-       register_command(cmd_ctx, arm_adi_v5_dap_cmd, "apid",
-                       handle_dap_apid_command, COMMAND_EXEC,
-                       "return id reg from AP [num], "
-                       "default currently selected AP");
-       register_command(cmd_ctx, arm_adi_v5_dap_cmd, "baseaddr",
-                       handle_dap_baseaddr_command, COMMAND_EXEC,
-                       "return debug base address from AP [num], "
-                       "default currently selected AP");
-       register_command(cmd_ctx, arm_adi_v5_dap_cmd, "memaccess",
-                       handle_dap_memaccess_command, COMMAND_EXEC,
-                       "set/get number of extra tck for mem-ap memory "
-                       "bus access [0-255]");
+/* FIXME this table should be part of generic DAP support, and
+ * be shared by the ARMv7-A/R and ARMv7-M support ...
+ */
+static const struct command_registration armv7a_exec_command_handlers[] = {
+       {
+               .name = "info",
+               .handler = handle_dap_info_command,
+               .mode = COMMAND_EXEC,
+               .help = "display ROM table for MEM-AP "
+                       "(default currently selected AP)",
+               .usage = "[ap_num]",
+       },
+       {
+               .name = "apsel",
+               .handler = handle_dap_apsel_command,
+               .mode = COMMAND_EXEC,
+               .help = "Set the currently selected AP (default 0) "
+                       "and display the result",
+               .usage = "[ap_num]",
+       },
+       {
+               .name = "apid",
+               .handler = handle_dap_apid_command,
+               .mode = COMMAND_EXEC,
+               .help = "return ID register from AP "
+                       "(default currently selected AP)",
+               .usage = "[ap_num]",
+       },
+       {
+               .name = "baseaddr",
+               .handler = handle_dap_baseaddr_command,
+               .mode = COMMAND_EXEC,
+               .help = "return debug base address from MEM-AP "
+                       "(default currently selected AP)",
+               .usage = "[ap_num]",
+       },
+       {
+               .name = "memaccess",
+               .handler = handle_dap_memaccess_command,
+               .mode = COMMAND_EXEC,
+               .help = "set/get number of extra tck for MEM-AP memory "
+                       "bus access [0-255]",
+               .usage = "[cycles]",
+       },
+       COMMAND_REGISTRATION_DONE
+};
+const struct command_registration armv7a_command_handlers[] = {
+       {
+               .name = "dap",
+               .mode = COMMAND_ANY,
+               .help = "Cortex DAP command group",
+               .chain = armv7a_exec_command_handlers,
+       },
+       COMMAND_REGISTRATION_DONE
+};
 
-       return ERROR_OK;
-}

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