src/jtag/minidummy/minidummy.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22
  23 #include "embeddedice.h"
  24 #include "minidriver.h"
  25 #include "interface.h"
  26
  27
  28
  29
  30 jtag_interface_t minidummy_interface =
  31 {
  32         .name = "minidummy",
  33         .execute_queue = NULL,
  34         .speed = NULL,
  35         .register_commands = NULL,
  36         .init = NULL,
  37         .quit = NULL,
  38         .khz = NULL,
  39         .speed_div = NULL,
  40         .power_dropout = NULL,
  41         .srst_asserted = NULL,
  42 };
  43
  44
  45
  46
  47
  48
  49 int interface_jtag_execute_queue(void)
  50 {
  51         /* synchronously do the operation here */
  52
  53         return ERROR_OK;
  54 }
  55
  56
  57
  58
  59
  60 extern int jtag_check_value(uint8_t *captured, void *priv);
  61
  62 int interface_jtag_set_end_state(tap_state_t state)
  63 {
  64         return ERROR_OK;
  65 }
  66
  67
  68 int interface_jtag_add_ir_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
  69 {
  70         /* synchronously do the operation here */
  71
  72         return ERROR_OK;
  73
  74 }
  75
  76
  77
  78
  79
  80 int interface_jtag_add_plain_ir_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
  81 {
  82         /* synchronously do the operation here */
  83
  84         return ERROR_OK;
  85 }
  86
  87 /*extern jtag_command_t **jtag_get_last_command_p(void);*/
  88
  89 int interface_jtag_add_dr_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
  90 {
  91         /* synchronously do the operation here */
  92
  93         return ERROR_OK;
  94 }
  95
  96 int interface_jtag_add_plain_dr_scan(int num_fields, const scan_field_t *fields, tap_state_t state)
  97 {
  98         /* synchronously do the operation here */
  99
 100         return ERROR_OK;
 101 }
 102
 103
 104 int interface_jtag_add_tlr()
 105 {
 106         /* synchronously do the operation here */
 107
 108         return ERROR_OK;
 109 }
 110
 111
 112
 113 int interface_jtag_add_reset(int req_trst, int req_srst)
 114 {
 115         /* synchronously do the operation here */
 116
 117         return ERROR_OK;
 118 }
 119
 120
 121 int interface_jtag_add_runtest(int num_cycles, tap_state_t state)
 122 {
 123         /* synchronously do the operation here */
 124
 125         return ERROR_OK;
 126 }
 127
 128 int interface_jtag_add_clocks(int num_cycles)
 129 {
 130         /* synchronously do the operation here */
 131
 132         return ERROR_OK;
 133 }
 134
 135 int interface_jtag_add_sleep(uint32_t us)
 136 {
 137         jtag_sleep(us);
 138         return ERROR_OK;
 139 }
 140
 141 int interface_jtag_add_pathmove(int num_states, const tap_state_t *path)
 142 {
 143         int state_count;
 144         int tms = 0;
 145
 146         state_count = 0;
 147
 148         tap_state_t cur_state = cmd_queue_cur_state;
 149
 150         while (num_states)
 151         {
 152                 if (tap_state_transition(cur_state, false) == path[state_count])
 153                 {
 154                         tms = 0;
 155                 }
 156                 else if (tap_state_transition(cur_state, true) == path[state_count])
 157                 {
 158                         tms = 1;
 159                 }
 160                 else
 161                 {
 162                         LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[state_count]));
 163                         exit(-1);
 164                 }
 165
 166                 /* synchronously do the operation here */
 167
 168                 cur_state = path[state_count];
 169                 state_count++;
 170                 num_states--;
 171         }
 172
 173
 174         /* synchronously do the operation here */
 175
 176         return ERROR_OK;
 177 }
 178
 179
 180
 181 void embeddedice_write_dcc(jtag_tap_t *tap, int reg_addr, uint8_t *buffer, int little, int count)
 182 {
 183         int i;
 184         for (i = 0; i < count; i++)
 185         {
 186                 embeddedice_write_reg_inner(tap, reg_addr, fast_target_buffer_get_u32(buffer, little));
 187                 buffer += 4;
 188         }
 189 }
 190