]> git.sur5r.net Git - openocd/blobdiff - src/target/arm11_dbgtap.c
arm11: do not use dynamic arrays
[openocd] / src / target / arm11_dbgtap.c
index 3a50ea072327c49a7476e5b4cd38b228647fb8df..26de4ceb2f8bdd7da36d664f2cfb74667697a296 100644 (file)
@@ -1,7 +1,8 @@
 /***************************************************************************
  *   Copyright (C) 2008 digenius technology GmbH.                          *
+ *   Michael Bruck                                                         *
  *                                                                         *
- *   Copyright (C) 2008 Oyvind Harboe oyvind.harboe@zylin.com              *
+ *   Copyright (C) 2008,2009 Oyvind Harboe oyvind.harboe@zylin.com         *
  *                                                                         *
  *   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  *
 #include "config.h"
 #endif
 
-#include "arm11.h"
-#include "jtag.h"
-#include "log.h"
+#include "arm_jtag.h"
+#include "arm11_dbgtap.h"
 
-#include <stdlib.h>
-#include <string.h>
+#include "time_support.h"
 
 #if 0
 #define JTAG_DEBUG(expr ...)   DEBUG(expr)
 #else
-#define JTAG_DEBUG(expr ...)   do {} while(0)
+#define JTAG_DEBUG(expr ...)   do {} while (0)
 #endif
 
-tap_state_t arm11_move_pi_to_si_via_ci[] =
+/*
+This pathmove goes from Pause-IR to Shift-IR while avoiding RTI. The
+behavior of the FTDI driver IIRC was to go via RTI.
+
+Conversely there may be other places in this code where the ARM11 code relies
+on the driver to hit through RTI when coming from Update-?R.
+*/
+static const tap_state_t arm11_move_pi_to_si_via_ci[] =
 {
     TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IRSHIFT
 };
 
 
-int arm11_add_ir_scan_vc(int num_fields, scan_field_t *fields, tap_state_t state)
+int arm11_add_ir_scan_vc(int num_fields, struct scan_field *fields, tap_state_t state)
 {
        if (cmd_queue_cur_state == TAP_IRPAUSE)
-               jtag_add_pathmove(asizeof(arm11_move_pi_to_si_via_ci), arm11_move_pi_to_si_via_ci);
+               jtag_add_pathmove(ARRAY_SIZE(arm11_move_pi_to_si_via_ci), arm11_move_pi_to_si_via_ci);
 
        jtag_add_ir_scan(num_fields, fields, state);
        return ERROR_OK;
 }
 
-tap_state_t arm11_move_pd_to_sd_via_cd[] =
+static const tap_state_t arm11_move_pd_to_sd_via_cd[] =
 {
        TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
 };
 
-int arm11_add_dr_scan_vc(int num_fields, scan_field_t *fields, tap_state_t state)
+int arm11_add_dr_scan_vc(int num_fields, struct scan_field *fields, tap_state_t state)
 {
        if (cmd_queue_cur_state == TAP_DRPAUSE)
-               jtag_add_pathmove(asizeof(arm11_move_pd_to_sd_via_cd), arm11_move_pd_to_sd_via_cd);
+               jtag_add_pathmove(ARRAY_SIZE(arm11_move_pd_to_sd_via_cd), arm11_move_pd_to_sd_via_cd);
 
        jtag_add_dr_scan(num_fields, fields, state);
        return ERROR_OK;
 }
 
 
-/** Code de-clutter: Construct scan_field_t to write out a value
+/** Code de-clutter: Construct struct scan_field to write out a value
  *
  * \param arm11                        Target state variable.
  * \param num_bits             Length of the data field
  * \param out_data             pointer to the data that will be sent out
- *                                             <em>(data is read when it is added to the JTAG queue)</em>
+ *                                             <em > (data is read when it is added to the JTAG queue)</em>
  * \param in_data              pointer to the memory that will receive data that was clocked in
- *                                             <em>(data is written when the JTAG queue is executed)</em>
+ *                                             <em > (data is written when the JTAG queue is executed)</em>
  * \param field                        target data structure that will be initialized
  */
-void arm11_setup_field(arm11_common_t * arm11, int num_bits, void * out_data, void * in_data, scan_field_t * field)
+void arm11_setup_field(struct arm11_common * arm11, int num_bits, void * out_data, void * in_data, struct scan_field * field)
 {
-       field->tap                      = arm11->jtag_info.tap;
+       field->tap                      = arm11->target->tap;
        field->num_bits                 = num_bits;
-       field->out_mask                 = NULL;
-       field->in_check_mask    = NULL;
-       field->in_check_value   = NULL;
-       field->in_handler               = NULL;
-       field->in_handler_priv  = NULL;
-
        field->out_value                = out_data;
        field->in_value                 = in_data;
 }
@@ -99,10 +99,10 @@ void arm11_setup_field(arm11_common_t * arm11, int num_bits, void * out_data, vo
  *
  * \remarks                    This adds to the JTAG command queue but does \em not execute it.
  */
-void arm11_add_IR(arm11_common_t * arm11, u8 instr, tap_state_t state)
+void arm11_add_IR(struct arm11_common * arm11, uint8_t instr, tap_state_t state)
 {
-       jtag_tap_t *tap;
-       tap = arm11->jtag_info.tap;
+       struct jtag_tap *tap;
+       tap = arm11->target->tap;
 
        if (buf_get_u32(tap->cur_instr, 0, 5) == instr)
        {
@@ -112,7 +112,7 @@ void arm11_add_IR(arm11_common_t * arm11, u8 instr, tap_state_t state)
 
        JTAG_DEBUG("IR <= 0x%02x", instr);
 
-       scan_field_t field;
+       struct scan_field field;
 
        arm11_setup_field(arm11, 5, &instr, NULL, &field);
 
@@ -120,23 +120,22 @@ void arm11_add_IR(arm11_common_t * arm11, u8 instr, tap_state_t state)
 }
 
 /** Verify shifted out data from Scan Chain Register (SCREG)
- *  Used as parameter to scan_field_t::in_handler in
+ *  Used as parameter to struct scan_field::in_handler in
  *  arm11_add_debug_SCAN_N().
  *
  */
-static int arm11_in_handler_SCAN_N(u8 *in_value, void *priv, struct scan_field_s *field)
+static void arm11_in_handler_SCAN_N(uint8_t *in_value)
 {
-       /** \todo TODO: clarify why this isnt properly masked in jtag.c jtag_read_buffer() */
-       u8 v = *in_value & 0x1F;
+       /** \todo TODO: clarify why this isnt properly masked in core.c jtag_read_buffer() */
+       uint8_t v = *in_value & 0x1F;
 
        if (v != 0x10)
        {
                LOG_ERROR("'arm11 target' JTAG communication error SCREG SCAN OUT 0x%02x (expected 0x10)", v);
-               return ERROR_FAIL;
+               jtag_set_error(ERROR_FAIL);
        }
 
        JTAG_DEBUG("SCREG SCAN OUT 0x%02x", v);
-       return ERROR_OK;
 }
 
 /** Select and write to Scan Chain Register (SCREG)
@@ -163,19 +162,26 @@ static int arm11_in_handler_SCAN_N(u8 *in_value, void *priv, struct scan_field_s
  * \remarks                    This adds to the JTAG command queue but does \em not execute it.
  */
 
-void arm11_add_debug_SCAN_N(arm11_common_t * arm11, u8 chain, tap_state_t state)
+int arm11_add_debug_SCAN_N(struct arm11_common * arm11, uint8_t chain, tap_state_t state)
 {
        JTAG_DEBUG("SCREG <= 0x%02x", chain);
 
        arm11_add_IR(arm11, ARM11_SCAN_N, ARM11_TAP_DEFAULT);
 
-       scan_field_t            field;
+       struct scan_field               field;
 
-       arm11_setup_field(arm11, 5, &chain, NULL, &field);
-
-       field.in_handler = arm11_in_handler_SCAN_N;
+       uint8_t tmp[1];
+       arm11_setup_field(arm11, 5, &chain, &tmp, &field);
 
        arm11_add_dr_scan_vc(1, &field, state == ARM11_TAP_DEFAULT ? TAP_DRPAUSE : state);
+
+       jtag_execute_queue_noclear();
+
+       arm11_in_handler_SCAN_N(tmp);
+
+       arm11->jtag_info.cur_scan_chain = chain;
+
+       return jtag_execute_queue();
 }
 
 /** Write an instruction into the ITR register
@@ -195,16 +201,16 @@ void arm11_add_debug_SCAN_N(arm11_common_t * arm11, u8 chain, tap_state_t state)
  *
  * \remarks                    This adds to the JTAG command queue but does \em not execute it.
  */
-void arm11_add_debug_INST(arm11_common_t * arm11, u32 inst, u8 * flag, tap_state_t state)
+void arm11_add_debug_INST(struct arm11_common * arm11, uint32_t inst, uint8_t * flag, tap_state_t state)
 {
        JTAG_DEBUG("INST <= 0x%08x", inst);
 
-       scan_field_t            itr[2];
+       struct scan_field               itr[2];
 
        arm11_setup_field(arm11, 32,    &inst,  NULL, itr + 0);
        arm11_setup_field(arm11, 1,         NULL,       flag, itr + 1);
 
-       arm11_add_dr_scan_vc(asizeof(itr), itr, state == ARM11_TAP_DEFAULT ? TAP_IDLE : state);
+       arm11_add_dr_scan_vc(ARRAY_SIZE(itr), itr, state == ARM11_TAP_DEFAULT ? TAP_IDLE : state);
 }
 
 /** Read the Debug Status and Control Register (DSCR)
@@ -212,37 +218,37 @@ void arm11_add_debug_INST(arm11_common_t * arm11, u32 inst, u8 * flag, tap_state
  * same as CP14 c1
  *
  * \param arm11                Target state variable.
- * \return                     DSCR content
+ * \param value                DSCR content
+ * \return                     Error status
  *
  * \remarks                    This is a stand-alone function that executes the JTAG command queue.
  */
-int arm11_read_DSCR(arm11_common_t * arm11, u32 *value)
+int arm11_read_DSCR(struct arm11_common * arm11, uint32_t *value)
 {
-       arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT);
+       int retval;
+       retval = arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT);
+       if (retval != ERROR_OK)
+               return retval;
 
        arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT);
 
-       u32                             dscr;
-       scan_field_t    chain1_field;
+       uint32_t                                dscr;
+       struct scan_field       chain1_field;
 
        arm11_setup_field(arm11, 32, NULL, &dscr, &chain1_field);
 
        arm11_add_dr_scan_vc(1, &chain1_field, TAP_DRPAUSE);
 
-       int retval;
-       if ((retval=jtag_execute_queue())!=ERROR_OK)
-       {
-               return retval;
-       }
+       CHECK_RETVAL(jtag_execute_queue());
 
        if (arm11->last_dscr != dscr)
                JTAG_DEBUG("DSCR  = %08x (OLD %08x)", dscr, arm11->last_dscr);
 
        arm11->last_dscr = dscr;
 
-       *value=dscr;
+       *value = dscr;
 
-       return retval;
+       return ERROR_OK;
 }
 
 /** Write the Debug Status and Control Register (DSCR)
@@ -254,21 +260,22 @@ int arm11_read_DSCR(arm11_common_t * arm11, u32 *value)
  *
  * \remarks                    This is a stand-alone function that executes the JTAG command queue.
  */
-int arm11_write_DSCR(arm11_common_t * arm11, u32 dscr)
+int arm11_write_DSCR(struct arm11_common * arm11, uint32_t dscr)
 {
-       arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT);
+       int retval;
+       retval = arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT);
+       if (retval != ERROR_OK)
+               return retval;
 
        arm11_add_IR(arm11, ARM11_EXTEST, ARM11_TAP_DEFAULT);
 
-       scan_field_t                chain1_field;
+       struct scan_field                   chain1_field;
 
        arm11_setup_field(arm11, 32, &dscr, NULL, &chain1_field);
 
        arm11_add_dr_scan_vc(1, &chain1_field, TAP_DRPAUSE);
 
-       int retval;
-       if ((retval=jtag_execute_queue())!=ERROR_OK)
-               return retval;
+       CHECK_RETVAL(jtag_execute_queue());
 
        JTAG_DEBUG("DSCR <= %08x (OLD %08x)", dscr, arm11->last_dscr);
 
@@ -285,7 +292,7 @@ int arm11_write_DSCR(arm11_common_t * arm11, u32 dscr)
  * \return                     Debug reason
  *
  */
-enum target_debug_reason arm11_get_DSCR_debug_reason(u32 dscr)
+enum target_debug_reason arm11_get_DSCR_debug_reason(uint32_t dscr)
 {
        switch (dscr & ARM11_DSCR_METHOD_OF_DEBUG_ENTRY_MASK)
        {
@@ -335,9 +342,9 @@ enum target_debug_reason arm11_get_DSCR_debug_reason(u32 dscr)
  * \param arm11                Target state variable.
  *
  */
-void arm11_run_instr_data_prepare(arm11_common_t * arm11)
+int arm11_run_instr_data_prepare(struct arm11_common * arm11)
 {
-       arm11_add_debug_SCAN_N(arm11, 0x05, ARM11_TAP_DEFAULT);
+       return arm11_add_debug_SCAN_N(arm11, 0x05, ARM11_TAP_DEFAULT);
 }
 
 /** Cleanup after ITR/DTR operations
@@ -354,12 +361,13 @@ void arm11_run_instr_data_prepare(arm11_common_t * arm11)
  * \param arm11                Target state variable.
  *
  */
-void arm11_run_instr_data_finish(arm11_common_t * arm11)
+int arm11_run_instr_data_finish(struct arm11_common * arm11)
 {
-       arm11_add_debug_SCAN_N(arm11, 0x00, ARM11_TAP_DEFAULT);
+       return arm11_add_debug_SCAN_N(arm11, 0x00, ARM11_TAP_DEFAULT);
 }
 
 
+
 /** Execute one or multiple instructions via ITR
  *
  * \pre arm11_run_instr_data_prepare() /  arm11_run_instr_data_finish() block
@@ -369,7 +377,7 @@ void arm11_run_instr_data_finish(arm11_common_t * arm11)
  * \param count                Number of opcodes to execute
  *
  */
-int arm11_run_instr_no_data(arm11_common_t * arm11, u32 * opcode, size_t count)
+int arm11_run_instr_no_data(struct arm11_common * arm11, uint32_t * opcode, size_t count)
 {
        arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
 
@@ -377,18 +385,34 @@ int arm11_run_instr_no_data(arm11_common_t * arm11, u32 * opcode, size_t count)
        {
                arm11_add_debug_INST(arm11, *opcode++, NULL, TAP_IDLE);
 
+               int i = 0;
                while (1)
                {
-                       u8 flag;
+                       uint8_t flag;
 
                        arm11_add_debug_INST(arm11, 0, &flag, count ? TAP_IDLE : TAP_DRPAUSE);
 
-                       int retval;
-                       if ((retval=jtag_execute_queue())!=ERROR_OK)
-                               return retval;
+                       CHECK_RETVAL(jtag_execute_queue());
 
                        if (flag)
                                break;
+
+                       long long then = 0;
+
+                       if (i == 1000)
+                       {
+                               then = timeval_ms();
+                       }
+                       if (i >= 1000)
+                       {
+                               if ((timeval_ms()-then) > 1000)
+                               {
+                                       LOG_WARNING("Timeout (1000ms) waiting for instructions to complete");
+                                       return ERROR_FAIL;
+                               }
+                       }
+
+                       i++;
                }
        }
 
@@ -403,9 +427,9 @@ int arm11_run_instr_no_data(arm11_common_t * arm11, u32 * opcode, size_t count)
  * \param opcode       ARM opcode
  *
  */
-void arm11_run_instr_no_data1(arm11_common_t * arm11, u32 opcode)
+int arm11_run_instr_no_data1(struct arm11_common * arm11, uint32_t opcode)
 {
-       arm11_run_instr_no_data(arm11, &opcode, 1);
+       return arm11_run_instr_no_data(arm11, &opcode, 1);
 }
 
 
@@ -422,7 +446,7 @@ void arm11_run_instr_no_data1(arm11_common_t * arm11, u32 opcode)
  * \param count                Number of data words and instruction repetitions
  *
  */
-int arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
+int arm11_run_instr_data_to_core(struct arm11_common * arm11, uint32_t opcode, uint32_t * data, size_t count)
 {
        arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
 
@@ -430,11 +454,11 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data,
 
        arm11_add_IR(arm11, ARM11_EXTEST, ARM11_TAP_DEFAULT);
 
-       scan_field_t    chain5_fields[3];
+       struct scan_field       chain5_fields[3];
 
-       u32                             Data;
-       u8                              Ready;
-       u8                              nRetry;
+       uint32_t                                Data;
+       uint8_t                         Ready;
+       uint8_t                         nRetry;
 
        arm11_setup_field(arm11, 32,    &Data,  NULL,           chain5_fields + 0);
        arm11_setup_field(arm11,  1,    NULL,   &Ready,         chain5_fields + 1);
@@ -442,16 +466,33 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data,
 
        while (count--)
        {
+               int i = 0;
                do
                {
                        Data        = *data;
 
-                       arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_IDLE);
-                       int retval;
-                       if ((retval=jtag_execute_queue())!=ERROR_OK)
-                               return retval;
+                       arm11_add_dr_scan_vc(ARRAY_SIZE(chain5_fields), chain5_fields, jtag_set_end_state(TAP_IDLE));
+
+                       CHECK_RETVAL(jtag_execute_queue());
 
                        JTAG_DEBUG("DTR  Ready %d  nRetry %d", Ready, nRetry);
+
+                       long long then = 0;
+
+                       if (i == 1000)
+                       {
+                               then = timeval_ms();
+                       }
+                       if (i >= 1000)
+                       {
+                               if ((timeval_ms()-then) > 1000)
+                               {
+                                       LOG_WARNING("Timeout (1000ms) waiting for instructions to complete");
+                                       return ERROR_FAIL;
+                               }
+                       }
+
+                       i++;
                }
                while (!Ready);
 
@@ -460,16 +501,33 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data,
 
        arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT);
 
+       int i = 0;
        do
        {
                Data        = 0;
 
-               arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
-               int retval;
-               if ((retval=jtag_execute_queue())!=ERROR_OK)
-                       return retval;
+               arm11_add_dr_scan_vc(ARRAY_SIZE(chain5_fields), chain5_fields, TAP_DRPAUSE);
+
+               CHECK_RETVAL(jtag_execute_queue());
 
                JTAG_DEBUG("DTR  Data %08x  Ready %d  nRetry %d", Data, Ready, nRetry);
+
+               long long then = 0;
+
+               if (i == 1000)
+               {
+                       then = timeval_ms();
+               }
+               if (i >= 1000)
+               {
+                       if ((timeval_ms()-then) > 1000)
+                       {
+                               LOG_WARNING("Timeout (1000ms) waiting for instructions to complete");
+                               return ERROR_FAIL;
+                       }
+               }
+
+               i++;
        }
        while (!Ready);
 
@@ -486,8 +544,14 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, u32 opcode, u32 * data,
  *  layer (FT2232) that is long enough to finish execution on
  *  the core but still shorter than any manually inducible delays.
  *
+ *  To disable this code, try "memwrite burst false"
+ *
+ *  FIX!!! should we use multiple TAP_IDLE here or not???
+ *
+ *  https://lists.berlios.de/pipermail/openocd-development/2009-July/009698.html
+ *  https://lists.berlios.de/pipermail/openocd-development/2009-August/009865.html
  */
-tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
+static const tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
 {
        TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
 };
@@ -509,7 +573,7 @@ tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
  * \param count                Number of data words and instruction repetitions
  *
  */
-int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
+int arm11_run_instr_data_to_core_noack(struct arm11_common * arm11, uint32_t opcode, uint32_t * data, size_t count)
 {
        arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
 
@@ -517,14 +581,24 @@ int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 *
 
        arm11_add_IR(arm11, ARM11_EXTEST, ARM11_TAP_DEFAULT);
 
-       scan_field_t    chain5_fields[3];
+       struct scan_field       chain5_fields[3];
 
        arm11_setup_field(arm11, 32,    NULL/*&Data*/,  NULL,                           chain5_fields + 0);
        arm11_setup_field(arm11,  1,    NULL,                   NULL /*&Ready*/,        chain5_fields + 1);
        arm11_setup_field(arm11,  1,    NULL,                   NULL,                           chain5_fields + 2);
 
-       u8                      Readies[count + 1];
-       u8      *               ReadyPos                        = Readies;
+       uint8_t                 *Readies;
+       unsigned readiesNum = count + 1;
+       unsigned bytes = sizeof(*Readies)*readiesNum;
+
+       Readies = (uint8_t *) malloc(bytes);
+       if (Readies == NULL)
+       {
+               LOG_ERROR("Out of memory allocating %u bytes", bytes);
+               return ERROR_FAIL;
+       }
+
+       uint8_t *               ReadyPos                        = Readies;
 
        while (count--)
        {
@@ -533,13 +607,13 @@ int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 *
 
                if (count)
                {
-                       jtag_add_dr_scan(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
-                       jtag_add_pathmove(asizeof(arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay),
+                       jtag_add_dr_scan(ARRAY_SIZE(chain5_fields), chain5_fields, jtag_set_end_state(TAP_DRPAUSE));
+                       jtag_add_pathmove(ARRAY_SIZE(arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay),
                                arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay);
                }
                else
                {
-                       jtag_add_dr_scan(asizeof(chain5_fields), chain5_fields, TAP_IDLE);
+                       jtag_add_dr_scan(ARRAY_SIZE(chain5_fields), chain5_fields, jtag_set_end_state(TAP_IDLE));
                }
        }
 
@@ -548,27 +622,30 @@ int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 *
        chain5_fields[0].out_value      = 0;
        chain5_fields[1].in_value   = ReadyPos++;
 
-       arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
-
-       int retval;
-       if ((retval=jtag_execute_queue())!=ERROR_OK)
-               return retval;
-
-       size_t error_count = 0;
+       arm11_add_dr_scan_vc(ARRAY_SIZE(chain5_fields), chain5_fields, TAP_DRPAUSE);
 
-       {size_t i;
-       for (i = 0; i < asizeof(Readies); i++)
+       int retval = jtag_execute_queue();
+       if (retval == ERROR_OK)
        {
-               if (Readies[i] != 1)
+               unsigned error_count = 0;
+
+               for (size_t i = 0; i < readiesNum; i++)
                {
-                       error_count++;
+                       if (Readies[i] != 1)
+                       {
+                               error_count++;
+                       }
                }
-       }}
 
-       if (error_count)
-               LOG_ERROR("Transfer errors " ZU, error_count);
+               if (error_count > 0 )
+                       LOG_ERROR("%u words out of %u not transferred",
+                               error_count, readiesNum);
 
-       return ERROR_OK;
+       }
+
+       free(Readies);
+
+       return retval;
 }
 
 
@@ -583,7 +660,7 @@ int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, u32 opcode, u32 *
  * \param data         Data word to be passed to the core via DTR
  *
  */
-int arm11_run_instr_data_to_core1(arm11_common_t * arm11, u32 opcode, u32 data)
+int arm11_run_instr_data_to_core1(struct arm11_common * arm11, uint32_t opcode, uint32_t data)
 {
        return arm11_run_instr_data_to_core(arm11, opcode, &data, 1);
 }
@@ -602,7 +679,7 @@ int arm11_run_instr_data_to_core1(arm11_common_t * arm11, u32 opcode, u32 data)
  * \param count                Number of data words and instruction repetitions
  *
  */
-int arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * data, size_t count)
+int arm11_run_instr_data_from_core(struct arm11_common * arm11, uint32_t opcode, uint32_t * data, size_t count)
 {
        arm11_add_IR(arm11, ARM11_ITRSEL, ARM11_TAP_DEFAULT);
 
@@ -610,11 +687,11 @@ int arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * dat
 
        arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT);
 
-       scan_field_t    chain5_fields[3];
+       struct scan_field       chain5_fields[3];
 
-       u32                     Data;
-       u8                      Ready;
-       u8                      nRetry;
+       uint32_t                        Data;
+       uint8_t                 Ready;
+       uint8_t                 nRetry;
 
        arm11_setup_field(arm11, 32,    NULL,   &Data,      chain5_fields + 0);
        arm11_setup_field(arm11,  1,    NULL,   &Ready,     chain5_fields + 1);
@@ -622,14 +699,31 @@ int arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * dat
 
        while (count--)
        {
+               int i = 0;
                do
                {
-                       arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, count ? TAP_IDLE : TAP_DRPAUSE);
-                       int retval;
-                       if ((retval=jtag_execute_queue())!=ERROR_OK)
-                               return retval;
+                       arm11_add_dr_scan_vc(ARRAY_SIZE(chain5_fields), chain5_fields, count ? TAP_IDLE : TAP_DRPAUSE);
+
+                       CHECK_RETVAL(jtag_execute_queue());
 
                        JTAG_DEBUG("DTR  Data %08x  Ready %d  nRetry %d", Data, Ready, nRetry);
+
+                       long long then = 0;
+
+                       if (i == 1000)
+                       {
+                               then = timeval_ms();
+                       }
+                       if (i >= 1000)
+                       {
+                               if ((timeval_ms()-then) > 1000)
+                               {
+                                       LOG_WARNING("Timeout (1000ms) waiting for instructions to complete");
+                                       return ERROR_FAIL;
+                               }
+                       }
+
+                       i++;
                }
                while (!Ready);
 
@@ -651,12 +745,17 @@ int arm11_run_instr_data_from_core(arm11_common_t * arm11, u32 opcode, u32 * dat
  * \param data         Pointer to a data word that receives the value from r0 after \p opcode was executed.
  *
  */
-void arm11_run_instr_data_from_core_via_r0(arm11_common_t * arm11, u32 opcode, u32 * data)
+int arm11_run_instr_data_from_core_via_r0(struct arm11_common * arm11, uint32_t opcode, uint32_t * data)
 {
-       arm11_run_instr_no_data1(arm11, opcode);
+       int retval;
+       retval = arm11_run_instr_no_data1(arm11, opcode);
+       if (retval != ERROR_OK)
+               return retval;
 
        /* MCR p14,0,R0,c0,c5,0 (move r0 -> wDTR -> local var) */
        arm11_run_instr_data_from_core(arm11, 0xEE000E15, data, 1);
+
+       return ERROR_OK;
 }
 
 /** Load data into core via DTR then move it to r0 then
@@ -671,44 +770,54 @@ void arm11_run_instr_data_from_core_via_r0(arm11_common_t * arm11, u32 opcode, u
  * \param data         Data word that will be written to r0 before \p opcode is executed
  *
  */
-void arm11_run_instr_data_to_core_via_r0(arm11_common_t * arm11, u32 opcode, u32 data)
+int arm11_run_instr_data_to_core_via_r0(struct arm11_common * arm11, uint32_t opcode, uint32_t data)
 {
+       int retval;
        /* MRC p14,0,r0,c0,c5,0 */
-       arm11_run_instr_data_to_core1(arm11, 0xEE100E15, data);
+       retval = arm11_run_instr_data_to_core1(arm11, 0xEE100E15, data);
+       if (retval != ERROR_OK)
+               return retval;
+
+       retval = arm11_run_instr_no_data1(arm11, opcode);
+       if (retval != ERROR_OK)
+               return retval;
 
-       arm11_run_instr_no_data1(arm11, opcode);
+       return ERROR_OK;
 }
 
 /** Apply reads and writes to scan chain 7
  *
- * \see arm11_sc7_action_t
+ * \see struct arm11_sc7_action
  *
  * \param arm11                Target state variable.
  * \param actions      A list of read and/or write instructions
  * \param count                Number of instructions in the list.
  *
  */
-int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count)
+int arm11_sc7_run(struct arm11_common * arm11, struct arm11_sc7_action * actions, size_t count)
 {
-       arm11_add_debug_SCAN_N(arm11, 0x07, ARM11_TAP_DEFAULT);
+       int retval;
+
+       retval = arm11_add_debug_SCAN_N(arm11, 0x07, ARM11_TAP_DEFAULT);
+       if (retval != ERROR_OK)
+               return retval;
 
        arm11_add_IR(arm11, ARM11_EXTEST, ARM11_TAP_DEFAULT);
 
-       scan_field_t    chain7_fields[3];
+       struct scan_field       chain7_fields[3];
 
-       u8                              nRW;
-       u32                             DataOut;
-       u8                              AddressOut;
-       u8                              Ready;
-       u32                             DataIn;
-       u8                              AddressIn;
+       uint8_t                         nRW;
+       uint32_t                                DataOut;
+       uint8_t                         AddressOut;
+       uint8_t                         Ready;
+       uint32_t                                DataIn;
+       uint8_t                         AddressIn;
 
        arm11_setup_field(arm11,  1, &nRW,                      &Ready,         chain7_fields + 0);
        arm11_setup_field(arm11, 32, &DataOut,          &DataIn,        chain7_fields + 1);
        arm11_setup_field(arm11,  7, &AddressOut,       &AddressIn,     chain7_fields + 2);
 
-       {size_t i;
-       for (i = 0; i < count + 1; i++)
+       for (size_t i = 0; i < count + 1; i++)
        {
                if (i < count)
                {
@@ -727,10 +836,9 @@ int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t c
                {
                        JTAG_DEBUG("SC7 <= Address %02x  Data %08x    nRW %d", AddressOut, DataOut, nRW);
 
-                       arm11_add_dr_scan_vc(asizeof(chain7_fields), chain7_fields, TAP_DRPAUSE);
-                       int retval;
-                       if ((retval=jtag_execute_queue())!=ERROR_OK)
-                               return retval;
+                       arm11_add_dr_scan_vc(ARRAY_SIZE(chain7_fields), chain7_fields, TAP_DRPAUSE);
+
+                       CHECK_RETVAL(jtag_execute_queue());
 
                        JTAG_DEBUG("SC7 => Address %02x  Data %08x  Ready %d", AddressIn, DataIn, Ready);
                }
@@ -755,13 +863,12 @@ int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t c
                                }
                        }
                }
-       }}
+       }
 
-       {size_t i;
-       for (i = 0; i < count; i++)
+       for (size_t i = 0; i < count; i++)
        {
                JTAG_DEBUG("SC7 %02d: %02x %s %08x", i, actions[i].address, actions[i].write ? "<=" : "=>", actions[i].value);
-       }}
+       }
 
        return ERROR_OK;
 }
@@ -771,31 +878,31 @@ int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t c
  * \param arm11                Target state variable.
  *
  */
-void arm11_sc7_clear_vbw(arm11_common_t * arm11)
+void arm11_sc7_clear_vbw(struct arm11_common * arm11)
 {
-       arm11_sc7_action_t              clear_bw[arm11->brp + arm11->wrp + 1];
-       arm11_sc7_action_t *    pos = clear_bw;
+       size_t clear_bw_size = arm11->brp + arm11->wrp + 1;
+       struct arm11_sc7_action         *clear_bw = malloc(sizeof(struct arm11_sc7_action) * clear_bw_size);
+       struct arm11_sc7_action *       pos = clear_bw;
 
-       {size_t i;
-       for (i = 0; i < asizeof(clear_bw); i++)
+       for (size_t i = 0; i < clear_bw_size; i++)
        {
                clear_bw[i].write       = true;
                clear_bw[i].value       = 0;
-       }}
+       }
 
-       {size_t i;
-       for (i = 0; i < arm11->brp; i++)
+       for (size_t i = 0; i < arm11->brp; i++)
                (pos++)->address = ARM11_SC7_BCR0 + i;
-       }
 
-       {size_t i;
-       for (i = 0; i < arm11->wrp; i++)
+
+       for (size_t i = 0; i < arm11->wrp; i++)
                (pos++)->address = ARM11_SC7_WCR0 + i;
-       }
+
 
        (pos++)->address = ARM11_SC7_VCR;
 
-       arm11_sc7_run(arm11, clear_bw, asizeof(clear_bw));
+       arm11_sc7_run(arm11, clear_bw, clear_bw_size);
+
+       free (clear_bw);
 }
 
 /** Write VCR register
@@ -803,9 +910,9 @@ void arm11_sc7_clear_vbw(arm11_common_t * arm11)
  * \param arm11                Target state variable.
  * \param value                Value to be written
  */
-void arm11_sc7_set_vcr(arm11_common_t * arm11, u32 value)
+void arm11_sc7_set_vcr(struct arm11_common * arm11, uint32_t value)
 {
-       arm11_sc7_action_t              set_vcr;
+       struct arm11_sc7_action         set_vcr;
 
        set_vcr.write           = true;
        set_vcr.address         = ARM11_SC7_VCR;
@@ -824,22 +931,19 @@ void arm11_sc7_set_vcr(arm11_common_t * arm11, u32 value)
  * \param result       Pointer where to store result
  *
  */
-int arm11_read_memory_word(arm11_common_t * arm11, u32 address, u32 * result)
+int arm11_read_memory_word(struct arm11_common * arm11, uint32_t address, uint32_t * result)
 {
        int retval;
-       arm11_run_instr_data_prepare(arm11);
+       retval = arm11_run_instr_data_prepare(arm11);
+       if (retval != ERROR_OK)
+               return retval;
 
        /* MRC p14,0,r0,c0,c5,0 (r0 = address) */
-       if ((retval=arm11_run_instr_data_to_core1(arm11, 0xee100e15, address))!=ERROR_OK)
-               return retval;
+       CHECK_RETVAL(arm11_run_instr_data_to_core1(arm11, 0xee100e15, address));
 
        /* LDC p14,c5,[R0],#4 (DTR = [r0]) */
-       if ((retval=arm11_run_instr_data_from_core(arm11, 0xecb05e01, result, 1))!=ERROR_OK)
-               return retval;
+       CHECK_RETVAL(arm11_run_instr_data_from_core(arm11, 0xecb05e01, result, 1));
 
-       arm11_run_instr_data_finish(arm11);
-
-       return ERROR_OK;
+       return arm11_run_instr_data_finish(arm11);
 }
 
-