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 static int handle_pld_devices_command(struct command_context_s *cmd_ctx,
  43                 char *cmd, char **args, int argc);
  44 static int handle_pld_device_command(struct command_context_s *cmd_ctx,
  45                 char *cmd, char **args, int argc);
  46 static int handle_pld_load_command(struct command_context_s *cmd_ctx,
  47                 char *cmd, char **args, int argc);
  48
  49 int pld_init(struct command_context_s *cmd_ctx)
  50 {
  51         if (pld_devices)
  52         {
  53                 register_command(cmd_ctx, pld_cmd, "devices", handle_pld_devices_command, COMMAND_EXEC,
  54                                                 "list configured pld devices");
  55                 register_command(cmd_ctx, pld_cmd, "load", handle_pld_load_command, COMMAND_EXEC,
  56                                                 "load configuration <file> into programmable logic device");
  57         }
  58
  59         return ERROR_OK;
  60 }
  61
  62 pld_device_t *get_pld_device_by_num(int num)
  63 {
  64         pld_device_t *p;
  65         int i = 0;
  66
  67         for (p = pld_devices; p; p = p->next)
  68         {
  69                 if (i++ == num)
  70                 {
  71                         return p;
  72                 }
  73         }
  74
  75         return NULL;
  76 }
  77
  78 /* pld device <driver> [driver_options ...]
  79  */
  80 static int handle_pld_device_command(struct command_context_s *cmd_ctx,
  81                 char *cmd, char **args, int argc)
  82 {
  83         int i;
  84         int found = 0;
  85
  86         if (argc < 1)
  87         {
  88                 LOG_WARNING("incomplete 'pld device' command");
  89                 return ERROR_OK;
  90         }
  91
  92         for (i = 0; pld_drivers[i]; i++)
  93         {
  94                 if (strcmp(args[0], pld_drivers[i]->name) == 0)
  95                 {
  96                         pld_device_t *p, *c;
  97
  98                         /* register pld specific commands */
  99                         if (pld_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 100                         {
 101                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
 102                                 exit(-1);
 103                         }
 104
 105                         c = malloc(sizeof(pld_device_t));
 106                         c->driver = pld_drivers[i];
 107                         c->next = NULL;
 108
 109                         if (pld_drivers[i]->pld_device_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
 110                         {
 111                                 LOG_ERROR("'%s' driver rejected pld device", args[0]);
 112                                 free(c);
 113                                 return ERROR_OK;
 114                         }
 115
 116                         /* put pld device in linked list */
 117                         if (pld_devices)
 118                         {
 119                                 /* find last pld device */
 120                                 for (p = pld_devices; p && p->next; p = p->next);
 121                                 if (p)
 122                                         p->next = c;
 123                         }
 124                         else
 125                         {
 126                                 pld_devices = c;
 127                         }
 128
 129                         found = 1;
 130                 }
 131         }
 132
 133         /* no matching pld driver found */
 134         if (!found)
 135         {
 136                 LOG_ERROR("pld driver '%s' not found", args[0]);
 137                 exit(-1);
 138         }
 139
 140         return ERROR_OK;
 141 }
 142
 143 static int handle_pld_devices_command(struct command_context_s *cmd_ctx,
 144                 char *cmd, char **args, int argc)
 145 {
 146         pld_device_t *p;
 147         int i = 0;
 148
 149         if (!pld_devices)
 150         {
 151                 command_print(cmd_ctx, "no pld devices configured");
 152                 return ERROR_OK;
 153         }
 154
 155         for (p = pld_devices; p; p = p->next)
 156         {
 157                 command_print(cmd_ctx, "#%i: %s", i++, p->driver->name);
 158         }
 159
 160         return ERROR_OK;
 161 }
 162
 163 static int handle_pld_load_command(struct command_context_s *cmd_ctx,
 164                 char *cmd, char **args, int argc)
 165 {
 166         int retval;
 167         struct timeval start, end, duration;
 168         pld_device_t *p;
 169
 170         gettimeofday(&start, NULL);
 171
 172         if (argc < 2)
 173         {
 174                 command_print(cmd_ctx, "usage: pld load <device#> <file>");
 175                 return ERROR_OK;
 176         }
 177
 178         p = get_pld_device_by_num(strtoul(args[0], NULL, 0));
 179         if (!p)
 180         {
 181                 command_print(cmd_ctx, "pld device '#%s' is out of bounds", args[0]);
 182                 return ERROR_OK;
 183         }
 184
 185         if ((retval = p->driver->load(p, args[1])) != ERROR_OK)
 186         {
 187                 command_print(cmd_ctx, "failed loading file %s to pld device %lu",
 188                         args[1], strtoul(args[0], NULL, 0));
 189                 switch (retval)
 190                 {
 191                 }
 192         }
 193         else
 194         {
 195                 gettimeofday(&end, NULL);
 196                 timeval_subtract(&duration, &end, &start);
 197
 198                 command_print(cmd_ctx, "loaded file %s to pld device %lu in %jis %jius",
 199                         args[1], strtoul(args[0], NULL, 0),
 200                         (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
 201         }
 202
 203         return ERROR_OK;
 204 }
 205
 206 int pld_register_commands(struct command_context_s *cmd_ctx)
 207 {
 208         pld_cmd = register_command(cmd_ctx, NULL, "pld", NULL, COMMAND_ANY, "programmable logic device commands");
 209
 210         register_command(cmd_ctx, pld_cmd, "device", handle_pld_device_command, COMMAND_CONFIG, NULL);
 211
 212         return ERROR_OK;
 213 }