src/pld/pld.c

   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, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "pld.h"
  25 #include "log.h"
  26 #include "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 {
  35         &virtex2_pld,
  36         NULL,
  37 };
  38
  39 static struct pld_device *pld_devices;
  40
  41 struct pld_device *get_pld_device_by_num(int num)
  42 {
  43         struct pld_device *p;
  44         int i = 0;
  45
  46         for (p = pld_devices; p; p = p->next)
  47         {
  48                 if (i++ == num)
  49                 {
  50                         return p;
  51                 }
  52         }
  53
  54         return NULL;
  55 }
  56
  57 /* pld device <driver> [driver_options ...]
  58  */
  59 COMMAND_HANDLER(handle_pld_device_command)
  60 {
  61         int i;
  62         int found = 0;
  63
  64         if (CMD_ARGC < 1)
  65         {
  66                 LOG_WARNING("incomplete 'pld device' command");
  67                 return ERROR_OK;
  68         }
  69
  70         for (i = 0; pld_drivers[i]; i++)
  71         {
  72                 if (strcmp(CMD_ARGV[0], pld_drivers[i]->name) == 0)
  73                 {
  74                         struct pld_device *p, *c;
  75
  76                         /* register pld specific commands */
  77                         if (pld_drivers[i]->register_commands(CMD_CTX) != ERROR_OK)
  78                         {
  79                                 LOG_ERROR("couldn't register '%s' commands", CMD_ARGV[0]);
  80                                 exit(-1);
  81                         }
  82
  83                         c = malloc(sizeof(struct pld_device));
  84                         c->driver = pld_drivers[i];
  85                         c->next = NULL;
  86
  87                         int retval = CALL_COMMAND_HANDLER(pld_drivers[i]->pld_device_command, c);
  88                         if (ERROR_OK != retval)
  89                         {
  90                                 LOG_ERROR("'%s' driver rejected pld device", CMD_ARGV[0]);
  91                                 free(c);
  92                                 return ERROR_OK;
  93                         }
  94
  95                         /* put pld device in linked list */
  96                         if (pld_devices)
  97                         {
  98                                 /* find last pld device */
  99                                 for (p = pld_devices; p && p->next; p = p->next);
 100                                 if (p)
 101                                         p->next = c;
 102                         }
 103                         else
 104                         {
 105                                 pld_devices = c;
 106                         }
 107
 108                         found = 1;
 109                 }
 110         }
 111
 112         /* no matching pld driver found */
 113         if (!found)
 114         {
 115                 LOG_ERROR("pld driver '%s' not found", CMD_ARGV[0]);
 116                 exit(-1);
 117         }
 118
 119         return ERROR_OK;
 120 }
 121
 122 COMMAND_HANDLER(handle_pld_devices_command)
 123 {
 124         struct pld_device *p;
 125         int i = 0;
 126
 127         if (!pld_devices)
 128         {
 129                 command_print(CMD_CTX, "no pld devices configured");
 130                 return ERROR_OK;
 131         }
 132
 133         for (p = pld_devices; p; p = p->next)
 134         {
 135                 command_print(CMD_CTX, "#%i: %s", i++, p->driver->name);
 136         }
 137
 138         return ERROR_OK;
 139 }
 140
 141 COMMAND_HANDLER(handle_pld_load_command)
 142 {
 143         int retval;
 144         struct timeval start, end, duration;
 145         struct pld_device *p;
 146
 147         gettimeofday(&start, NULL);
 148
 149         if (CMD_ARGC < 2)
 150         {
 151                 command_print(CMD_CTX, "usage: pld load <device#> <file>");
 152                 return ERROR_OK;
 153         }
 154
 155         unsigned dev_id;
 156         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
 157         p = get_pld_device_by_num(dev_id);
 158         if (!p)
 159         {
 160                 command_print(CMD_CTX, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
 161                 return ERROR_OK;
 162         }
 163
 164         if ((retval = p->driver->load(p, CMD_ARGV[1])) != ERROR_OK)
 165         {
 166                 command_print(CMD_CTX, "failed loading file %s to pld device %u",
 167                         CMD_ARGV[1], dev_id);
 168                 switch (retval)
 169                 {
 170                 }
 171                 return retval;
 172         }
 173         else
 174         {
 175                 gettimeofday(&end, NULL);
 176                 timeval_subtract(&duration, &end, &start);
 177
 178                 command_print(CMD_CTX, "loaded file %s to pld device %u in %jis %jius",
 179                         CMD_ARGV[1], dev_id,
 180                         (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
 181         }
 182
 183         return ERROR_OK;
 184 }
 185
 186 static const struct command_registration pld_exec_command_handlers[] = {
 187         {
 188                 .name = "devices",
 189                 .handler = &handle_pld_devices_command,
 190                 .mode = COMMAND_EXEC,
 191                 .help = "list configured pld devices",
 192         },
 193         {
 194                 .name = "load",
 195                 .handler = &handle_pld_load_command,
 196                 .mode = COMMAND_EXEC,
 197                 .help = "load configuration file into PLD",
 198                 .usage = "<device#> <file>",
 199         },
 200         COMMAND_REGISTRATION_DONE
 201 };
 202 int pld_init(struct command_context *cmd_ctx)
 203 {
 204         if (!pld_devices)
 205                 return ERROR_OK;
 206
 207         struct command *parent = command_find_in_context(cmd_ctx, "pld");
 208         return register_commands(cmd_ctx, parent, pld_exec_command_handlers);
 209 }
 210
 211 static const struct command_registration pld_config_command_handlers[] = {
 212         {
 213                 .name = "device",
 214                 .mode = COMMAND_CONFIG,
 215                 .handler = &handle_pld_device_command,
 216                 .help = "configure a PLD device",
 217                 .usage = "<driver> ...",
 218         },
 219         COMMAND_REGISTRATION_DONE
 220 };
 221 static const struct command_registration pld_command_handler[] = {
 222         {
 223                 .name = "pld",
 224                 .mode = COMMAND_ANY,
 225                 .help = "programmable logic device commands",
 226
 227                 .chain = pld_config_command_handlers,
 228         },
 229         COMMAND_REGISTRATION_DONE
 230 };
 231 int pld_register_commands(struct command_context *cmd_ctx)
 232 {
 233         return register_commands(cmd_ctx, NULL, pld_command_handler);
 234 }