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   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  17  ***************************************************************************/
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22
  23 #include "pld.h"
  24 #include <helper/log.h>
  25 #include <helper/replacements.h>
  26 #include <helper/time_support.h>
  27
  28
  29 /* pld drivers
  30  */
  31 extern struct pld_driver virtex2_pld;
  32
  33 static struct pld_driver *pld_drivers[] = {
  34         &virtex2_pld,
  35         NULL,
  36 };
  37
  38 static struct pld_device *pld_devices;
  39
  40 struct pld_device *get_pld_device_by_num(int num)
  41 {
  42         struct pld_device *p;
  43         int i = 0;
  44
  45         for (p = pld_devices; p; p = p->next) {
  46                 if (i++ == num)
  47                         return p;
  48         }
  49
  50         return NULL;
  51 }
  52
  53 /* pld device <driver> [driver_options ...]
  54  */
  55 COMMAND_HANDLER(handle_pld_device_command)
  56 {
  57         int i;
  58         int found = 0;
  59
  60         if (CMD_ARGC < 1)
  61                 return ERROR_COMMAND_SYNTAX_ERROR;
  62
  63         for (i = 0; pld_drivers[i]; i++) {
  64                 if (strcmp(CMD_ARGV[0], pld_drivers[i]->name) == 0) {
  65                         struct pld_device *p, *c;
  66
  67                         /* register pld specific commands */
  68                         int retval;
  69                         if (pld_drivers[i]->commands) {
  70                                 retval = register_commands(CMD_CTX, NULL,
  71                                                 pld_drivers[i]->commands);
  72                                 if (retval != ERROR_OK) {
  73                                         LOG_ERROR("couldn't register '%s' commands", CMD_ARGV[0]);
  74                                         return ERROR_FAIL;
  75                                 }
  76                         }
  77
  78                         c = malloc(sizeof(struct pld_device));
  79                         c->driver = pld_drivers[i];
  80                         c->next = NULL;
  81
  82                         retval = CALL_COMMAND_HANDLER(
  83                                         pld_drivers[i]->pld_device_command, c);
  84                         if (retval != ERROR_OK) {
  85                                 LOG_ERROR("'%s' driver rejected pld device",
  86                                         CMD_ARGV[0]);
  87                                 free(c);
  88                                 return ERROR_OK;
  89                         }
  90
  91                         /* put pld device in linked list */
  92                         if (pld_devices) {
  93                                 /* find last pld device */
  94                                 for (p = pld_devices; p && p->next; p = p->next)
  95                                         ;
  96                                 if (p)
  97                                         p->next = c;
  98                         } else
  99                                 pld_devices = c;
 100
 101                         found = 1;
 102                 }
 103         }
 104
 105         /* no matching pld driver found */
 106         if (!found) {
 107                 LOG_ERROR("pld driver '%s' not found", CMD_ARGV[0]);
 108                 exit(-1);
 109         }
 110
 111         return ERROR_OK;
 112 }
 113
 114 COMMAND_HANDLER(handle_pld_devices_command)
 115 {
 116         struct pld_device *p;
 117         int i = 0;
 118
 119         if (!pld_devices) {
 120                 command_print(CMD, "no pld devices configured");
 121                 return ERROR_OK;
 122         }
 123
 124         for (p = pld_devices; p; p = p->next)
 125                 command_print(CMD, "#%i: %s", i++, p->driver->name);
 126
 127         return ERROR_OK;
 128 }
 129
 130 COMMAND_HANDLER(handle_pld_load_command)
 131 {
 132         int retval;
 133         struct timeval start, end, duration;
 134         struct pld_device *p;
 135
 136         gettimeofday(&start, NULL);
 137
 138         if (CMD_ARGC < 2)
 139                 return ERROR_COMMAND_SYNTAX_ERROR;
 140
 141         unsigned dev_id;
 142         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
 143         p = get_pld_device_by_num(dev_id);
 144         if (!p) {
 145                 command_print(CMD, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
 146                 return ERROR_OK;
 147         }
 148
 149         retval = p->driver->load(p, CMD_ARGV[1]);
 150         if (retval != ERROR_OK) {
 151                 command_print(CMD, "failed loading file %s to pld device %u",
 152                         CMD_ARGV[1], dev_id);
 153                 switch (retval) {
 154                 }
 155                 return retval;
 156         } else {
 157                 gettimeofday(&end, NULL);
 158                 timeval_subtract(&duration, &end, &start);
 159
 160                 command_print(CMD, "loaded file %s to pld device %u in %jis %jius",
 161                         CMD_ARGV[1], dev_id,
 162                         (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
 163         }
 164
 165         return ERROR_OK;
 166 }
 167
 168 static const struct command_registration pld_exec_command_handlers[] = {
 169         {
 170                 .name = "devices",
 171                 .handler = handle_pld_devices_command,
 172                 .mode = COMMAND_EXEC,
 173                 .help = "list configured pld devices",
 174                 .usage = "",
 175         },
 176         {
 177                 .name = "load",
 178                 .handler = handle_pld_load_command,
 179                 .mode = COMMAND_EXEC,
 180                 .help = "load configuration file into PLD",
 181                 .usage = "pld_num filename",
 182         },
 183         COMMAND_REGISTRATION_DONE
 184 };
 185
 186 static int pld_init(struct command_context *cmd_ctx)
 187 {
 188         if (!pld_devices)
 189                 return ERROR_OK;
 190
 191         return register_commands(cmd_ctx, "pld", pld_exec_command_handlers);
 192 }
 193
 194 COMMAND_HANDLER(handle_pld_init_command)
 195 {
 196         if (CMD_ARGC != 0)
 197                 return ERROR_COMMAND_SYNTAX_ERROR;
 198
 199         static bool pld_initialized;
 200         if (pld_initialized) {
 201                 LOG_INFO("'pld init' has already been called");
 202                 return ERROR_OK;
 203         }
 204         pld_initialized = true;
 205
 206         LOG_DEBUG("Initializing PLDs...");
 207         return pld_init(CMD_CTX);
 208 }
 209
 210 static const struct command_registration pld_config_command_handlers[] = {
 211         {
 212                 .name = "device",
 213                 .mode = COMMAND_CONFIG,
 214                 .handler = handle_pld_device_command,
 215                 .help = "configure a PLD device",
 216                 .usage = "driver_name [driver_args ... ]",
 217         },
 218         {
 219                 .name = "init",
 220                 .mode = COMMAND_CONFIG,
 221                 .handler = handle_pld_init_command,
 222                 .help = "initialize PLD devices",
 223                 .usage = ""
 224         },
 225         COMMAND_REGISTRATION_DONE
 226 };
 227 static const struct command_registration pld_command_handler[] = {
 228         {
 229                 .name = "pld",
 230                 .mode = COMMAND_ANY,
 231                 .help = "programmable logic device commands",
 232                 .usage = "",
 233                 .chain = pld_config_command_handlers,
 234         },
 235         COMMAND_REGISTRATION_DONE
 236 };
 237 int pld_register_commands(struct command_context *cmd_ctx)
 238 {
 239         return register_commands(cmd_ctx, NULL, pld_command_handler);
 240 }