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do not use dynamically sized stack arrays, not compatible with embedded OS's
[openocd.git] / src / target / arm11_dbgtap.c
diff --git a/src/target/arm11_dbgtap.c b/src/target/arm11_dbgtap.c
index 8788ba98db8c85af11290520570f0ae7ec6ba884..54e7ae658168bc89e3da708fb7caf9e9c52208bb 100644 (file)
--- a/src/target/arm11_dbgtap.c
+++ b/src/target/arm11_dbgtap.c
@@ -2,7 +2,7 @@
  *   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  *
@@ -26,11 +26,12 @@
 
 #include "arm11.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
 
 /*
@@ -75,9 +76,9 @@ int arm11_add_dr_scan_vc(int num_fields, scan_field_t *fields, tap_state_t state
  * \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)
@@ -237,7 +238,7 @@ int arm11_read_DSCR(arm11_common_t * arm11, uint32_t *value)
 
        arm11->last_dscr = dscr;
 
-       *value=dscr;
+       *value = dscr;
 
        return ERROR_OK;
 }
@@ -355,6 +356,7 @@ void arm11_run_instr_data_finish(arm11_common_t * arm11)
 }
 
 
+
 /** Execute one or multiple instructions via ITR
  *
  * \pre arm11_run_instr_data_prepare() /  arm11_run_instr_data_finish() block
@@ -372,6 +374,7 @@ int arm11_run_instr_no_data(arm11_common_t * arm11, uint32_t * opcode, size_t co
        {
                arm11_add_debug_INST(arm11, *opcode++, NULL, TAP_IDLE);
 
+               int i = 0;
                while (1)
                {
                        uint8_t flag;
@@ -382,6 +385,23 @@ int arm11_run_instr_no_data(arm11_common_t * arm11, uint32_t * opcode, size_t co
 
                        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++;
                }
        }
 
@@ -396,9 +416,9 @@ int arm11_run_instr_no_data(arm11_common_t * arm11, uint32_t * opcode, size_t co
  * \param opcode       ARM opcode
  *
  */
-void arm11_run_instr_no_data1(arm11_common_t * arm11, uint32_t opcode)
+int arm11_run_instr_no_data1(arm11_common_t * arm11, uint32_t opcode)
 {
-       arm11_run_instr_no_data(arm11, &opcode, 1);
+       return arm11_run_instr_no_data(arm11, &opcode, 1);
 }
 
 
@@ -435,6 +455,7 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, uint32_t opcode, uint32
 
        while (count--)
        {
+               int i = 0;
                do
                {
                        Data        = *data;
@@ -444,6 +465,23 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, uint32_t opcode, uint32
                        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);
 
@@ -452,6 +490,7 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, uint32_t opcode, uint32
 
        arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT);
 
+       int i = 0;
        do
        {
                Data        = 0;
@@ -461,6 +500,23 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, uint32_t opcode, uint32
                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);
 
@@ -479,6 +535,10 @@ int arm11_run_instr_data_to_core(arm11_common_t * arm11, uint32_t opcode, uint32
  *
  *  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[] =
 {
@@ -516,7 +576,15 @@ int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, uint32_t opcode,
        arm11_setup_field(arm11,  1,    NULL,                   NULL /*&Ready*/,        chain5_fields + 1);
        arm11_setup_field(arm11,  1,    NULL,                   NULL,                           chain5_fields + 2);
 
-       uint8_t                 Readies[count + 1];
+       uint8_t                 *Readies;
+       int bytes = sizeof(*Readies)*(count + 1);
+       Readies = (uint8_t *) malloc(bytes);
+       if (Readies == NULL)
+       {
+               LOG_ERROR("Out of memory allocating %d bytes", bytes);
+               return ERROR_FAIL;
+       }
+
        uint8_t *               ReadyPos                        = Readies;
 
        while (count--)
@@ -543,22 +611,28 @@ int arm11_run_instr_data_to_core_noack(arm11_common_t * arm11, uint32_t opcode,
 
        arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, TAP_DRPAUSE);
 
-       CHECK_RETVAL(jtag_execute_queue());
+       int retval = jtag_execute_queue();
+       if (retval == ERROR_OK)
+       {
 
-       size_t error_count = 0;
+               size_t error_count = 0;
 
-       for (size_t i = 0; i < asizeof(Readies); i++)
-       {
-               if (Readies[i] != 1)
+               for (size_t i = 0; i < asizeof(Readies); i++)
                {
-                       error_count++;
+                       if (Readies[i] != 1)
+                       {
+                               error_count++;
+                       }
                }
+
+               if (error_count)
+                       LOG_ERROR("Transfer errors " ZU, error_count);
+
        }
 
-       if (error_count)
-               LOG_ERROR("Transfer errors " ZU, error_count);
+       free(Readies);
 
-       return ERROR_OK;
+       return retval;
 }
 
 
@@ -612,6 +686,7 @@ int arm11_run_instr_data_from_core(arm11_common_t * arm11, uint32_t opcode, uint
 
        while (count--)
        {
+               int i = 0;
                do
                {
                        arm11_add_dr_scan_vc(asizeof(chain5_fields), chain5_fields, count ? TAP_IDLE : TAP_DRPAUSE);
@@ -619,6 +694,23 @@ int arm11_run_instr_data_from_core(arm11_common_t * arm11, uint32_t opcode, uint
                        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);
 
@@ -640,12 +732,17 @@ int arm11_run_instr_data_from_core(arm11_common_t * arm11, uint32_t opcode, uint
  * \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, uint32_t opcode, uint32_t * data)
+int arm11_run_instr_data_from_core_via_r0(arm11_common_t * 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
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