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 pld_driver_t virtex2_pld;
  32
  33 static pld_driver_t *pld_drivers[] =
  34 {
  35         &virtex2_pld,
  36         NULL,
  37 };
  38
  39 static pld_device_t *pld_devices;
  40 static command_t *pld_cmd;
  41
  42 pld_device_t *get_pld_device_by_num(int num)
  43 {
  44         pld_device_t *p;
  45         int i = 0;
  46
  47         for (p = pld_devices; p; p = p->next)
  48         {
  49                 if (i++ == num)
  50                 {
  51                         return p;
  52                 }
  53         }
  54
  55         return NULL;
  56 }
  57
  58 /* pld device <driver> [driver_options ...]
  59  */
  60 static int handle_pld_device_command(struct command_context_s *cmd_ctx,
  61                 char *cmd, char **args, int argc)
  62 {
  63         int i;
  64         int found = 0;
  65
  66         if (argc < 1)
  67         {
  68                 LOG_WARNING("incomplete 'pld device' command");
  69                 return ERROR_OK;
  70         }
  71
  72         for (i = 0; pld_drivers[i]; i++)
  73         {
  74                 if (strcmp(args[0], pld_drivers[i]->name) == 0)
  75                 {
  76                         pld_device_t *p, *c;
  77
  78                         /* register pld specific commands */
  79                         if (pld_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
  80                         {
  81                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
  82                                 exit(-1);
  83                         }
  84
  85                         c = malloc(sizeof(pld_device_t));
  86                         c->driver = pld_drivers[i];
  87                         c->next = NULL;
  88
  89                         if (pld_drivers[i]->pld_device_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
  90                         {
  91                                 LOG_ERROR("'%s' driver rejected pld device", args[0]);
  92                                 free(c);
  93                                 return ERROR_OK;
  94                         }
  95
  96                         /* put pld device in linked list */
  97                         if (pld_devices)
  98                         {
  99                                 /* find last pld device */
 100                                 for (p = pld_devices; p && p->next; p = p->next);
 101                                 if (p)
 102                                         p->next = c;
 103                         }
 104                         else
 105                         {
 106                                 pld_devices = c;
 107                         }
 108
 109                         found = 1;
 110                 }
 111         }
 112
 113         /* no matching pld driver found */
 114         if (!found)
 115         {
 116                 LOG_ERROR("pld driver '%s' not found", args[0]);
 117                 exit(-1);
 118         }
 119
 120         return ERROR_OK;
 121 }
 122
 123 static int handle_pld_devices_command(struct command_context_s *cmd_ctx,
 124                 char *cmd, char **args, int argc)
 125 {
 126         pld_device_t *p;
 127         int i = 0;
 128
 129         if (!pld_devices)
 130         {
 131                 command_print(cmd_ctx, "no pld devices configured");
 132                 return ERROR_OK;
 133         }
 134
 135         for (p = pld_devices; p; p = p->next)
 136         {
 137                 command_print(cmd_ctx, "#%i: %s", i++, p->driver->name);
 138         }
 139
 140         return ERROR_OK;
 141 }
 142
 143 static int handle_pld_load_command(struct command_context_s *cmd_ctx,
 144                 char *cmd, char **args, int argc)
 145 {
 146         int retval;
 147         struct timeval start, end, duration;
 148         pld_device_t *p;
 149
 150         gettimeofday(&start, NULL);
 151
 152         if (argc < 2)
 153         {
 154                 command_print(cmd_ctx, "usage: pld load <device#> <file>");
 155                 return ERROR_OK;
 156         }
 157
 158         unsigned dev_id;
 159         COMMAND_PARSE_NUMBER(uint, args[0], dev_id);
 160         p = get_pld_device_by_num(dev_id);
 161         if (!p)
 162         {
 163                 command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
 164                 return ERROR_OK;
 165         }
 166
 167         if ((retval = p->driver->load(p, args[1])) != ERROR_OK)
 168         {
 169                 command_print(cmd_ctx, "failed loading file %s to pld device %u",
 170                         args[1], dev_id);
 171                 switch (retval)
 172                 {
 173                 }
 174                 return retval;
 175         }
 176         else
 177         {
 178                 gettimeofday(&end, NULL);
 179                 timeval_subtract(&duration, &end, &start);
 180
 181                 command_print(cmd_ctx, "loaded file %s to pld device %u in %jis %jius",
 182                         args[1], dev_id,
 183                         (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
 184         }
 185
 186         return ERROR_OK;
 187 }
 188
 189 int pld_init(struct command_context_s *cmd_ctx)
 190 {
 191         if (!pld_devices)
 192                 return ERROR_OK;
 193
 194         register_command(cmd_ctx, pld_cmd, "devices",
 195                         handle_pld_devices_command, COMMAND_EXEC,
 196                         "list configured pld devices");
 197         register_command(cmd_ctx, pld_cmd, "load",
 198                         handle_pld_load_command, COMMAND_EXEC,
 199                         "load configuration <file> into programmable logic device");
 200
 201         return ERROR_OK;
 202 }
 203
 204 int pld_register_commands(struct command_context_s *cmd_ctx)
 205 {
 206         pld_cmd = register_command(cmd_ctx, NULL, "pld", NULL, COMMAND_ANY, "programmable logic device commands");
 207
 208         register_command(cmd_ctx, pld_cmd, "device", handle_pld_device_command, COMMAND_CONFIG, NULL);
 209
 210         return ERROR_OK;
 211 }