src/pld/pld.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2006 by Dominic Rath                                    *
   5  *   Dominic.Rath@gmx.de                                                   *
   6  ***************************************************************************/
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include "config.h"
  10 #endif
  11
  12 #include "pld.h"
  13 #include <helper/log.h>
  14 #include <helper/replacements.h>
  15 #include <helper/time_support.h>
  16
  17
  18 /* pld drivers
  19  */
  20 extern struct pld_driver virtex2_pld;
  21
  22 static struct pld_driver *pld_drivers[] = {
  23         &virtex2_pld,
  24         NULL,
  25 };
  26
  27 static struct pld_device *pld_devices;
  28
  29 struct pld_device *get_pld_device_by_num(int num)
  30 {
  31         struct pld_device *p;
  32         int i = 0;
  33
  34         for (p = pld_devices; p; p = p->next) {
  35                 if (i++ == num)
  36                         return p;
  37         }
  38
  39         return NULL;
  40 }
  41
  42 /* pld device <driver> [driver_options ...]
  43  */
  44 COMMAND_HANDLER(handle_pld_device_command)
  45 {
  46         int i;
  47         int found = 0;
  48
  49         if (CMD_ARGC < 1)
  50                 return ERROR_COMMAND_SYNTAX_ERROR;
  51
  52         for (i = 0; pld_drivers[i]; i++) {
  53                 if (strcmp(CMD_ARGV[0], pld_drivers[i]->name) == 0) {
  54                         struct pld_device *p, *c;
  55
  56                         /* register pld specific commands */
  57                         int retval;
  58                         if (pld_drivers[i]->commands) {
  59                                 retval = register_commands(CMD_CTX, NULL, pld_drivers[i]->commands);
  60                                 if (retval != ERROR_OK) {
  61                                         LOG_ERROR("couldn't register '%s' commands", CMD_ARGV[0]);
  62                                         return ERROR_FAIL;
  63                                 }
  64                         }
  65
  66                         c = malloc(sizeof(struct pld_device));
  67                         c->driver = pld_drivers[i];
  68                         c->next = NULL;
  69
  70                         retval = CALL_COMMAND_HANDLER(
  71                                         pld_drivers[i]->pld_device_command, c);
  72                         if (retval != ERROR_OK) {
  73                                 LOG_ERROR("'%s' driver rejected pld device",
  74                                         CMD_ARGV[0]);
  75                                 free(c);
  76                                 return ERROR_OK;
  77                         }
  78
  79                         /* put pld device in linked list */
  80                         if (pld_devices) {
  81                                 /* find last pld device */
  82                                 for (p = pld_devices; p && p->next; p = p->next)
  83                                         ;
  84                                 if (p)
  85                                         p->next = c;
  86                         } else
  87                                 pld_devices = c;
  88
  89                         found = 1;
  90                 }
  91         }
  92
  93         /* no matching pld driver found */
  94         if (!found) {
  95                 LOG_ERROR("pld driver '%s' not found", CMD_ARGV[0]);
  96                 exit(-1);
  97         }
  98
  99         return ERROR_OK;
 100 }
 101
 102 COMMAND_HANDLER(handle_pld_devices_command)
 103 {
 104         struct pld_device *p;
 105         int i = 0;
 106
 107         if (!pld_devices) {
 108                 command_print(CMD, "no pld devices configured");
 109                 return ERROR_OK;
 110         }
 111
 112         for (p = pld_devices; p; p = p->next)
 113                 command_print(CMD, "#%i: %s", i++, p->driver->name);
 114
 115         return ERROR_OK;
 116 }
 117
 118 COMMAND_HANDLER(handle_pld_load_command)
 119 {
 120         int retval;
 121         struct timeval start, end, duration;
 122         struct pld_device *p;
 123
 124         gettimeofday(&start, NULL);
 125
 126         if (CMD_ARGC < 2)
 127                 return ERROR_COMMAND_SYNTAX_ERROR;
 128
 129         unsigned dev_id;
 130         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
 131         p = get_pld_device_by_num(dev_id);
 132         if (!p) {
 133                 command_print(CMD, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
 134                 return ERROR_OK;
 135         }
 136
 137         retval = p->driver->load(p, CMD_ARGV[1]);
 138         if (retval != ERROR_OK) {
 139                 command_print(CMD, "failed loading file %s to pld device %u",
 140                         CMD_ARGV[1], dev_id);
 141                 switch (retval) {
 142                 }
 143                 return retval;
 144         } else {
 145                 gettimeofday(&end, NULL);
 146                 timeval_subtract(&duration, &end, &start);
 147
 148                 command_print(CMD, "loaded file %s to pld device %u in %jis %jius",
 149                         CMD_ARGV[1], dev_id,
 150                         (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
 151         }
 152
 153         return ERROR_OK;
 154 }
 155
 156 static const struct command_registration pld_exec_command_handlers[] = {
 157         {
 158                 .name = "devices",
 159                 .handler = handle_pld_devices_command,
 160                 .mode = COMMAND_EXEC,
 161                 .help = "list configured pld devices",
 162                 .usage = "",
 163         },
 164         {
 165                 .name = "load",
 166                 .handler = handle_pld_load_command,
 167                 .mode = COMMAND_EXEC,
 168                 .help = "load configuration file into PLD",
 169                 .usage = "pld_num filename",
 170         },
 171         COMMAND_REGISTRATION_DONE
 172 };
 173
 174 static int pld_init(struct command_context *cmd_ctx)
 175 {
 176         if (!pld_devices)
 177                 return ERROR_OK;
 178
 179         return register_commands(cmd_ctx, "pld", pld_exec_command_handlers);
 180 }
 181
 182 COMMAND_HANDLER(handle_pld_init_command)
 183 {
 184         if (CMD_ARGC != 0)
 185                 return ERROR_COMMAND_SYNTAX_ERROR;
 186
 187         static bool pld_initialized;
 188         if (pld_initialized) {
 189                 LOG_INFO("'pld init' has already been called");
 190                 return ERROR_OK;
 191         }
 192         pld_initialized = true;
 193
 194         LOG_DEBUG("Initializing PLDs...");
 195         return pld_init(CMD_CTX);
 196 }
 197
 198 static const struct command_registration pld_config_command_handlers[] = {
 199         {
 200                 .name = "device",
 201                 .mode = COMMAND_CONFIG,
 202                 .handler = handle_pld_device_command,
 203                 .help = "configure a PLD device",
 204                 .usage = "driver_name [driver_args ... ]",
 205         },
 206         {
 207                 .name = "init",
 208                 .mode = COMMAND_CONFIG,
 209                 .handler = handle_pld_init_command,
 210                 .help = "initialize PLD devices",
 211                 .usage = ""
 212         },
 213         COMMAND_REGISTRATION_DONE
 214 };
 215 static const struct command_registration pld_command_handler[] = {
 216         {
 217                 .name = "pld",
 218                 .mode = COMMAND_ANY,
 219                 .help = "programmable logic device commands",
 220                 .usage = "",
 221                 .chain = pld_config_command_handlers,
 222         },
 223         COMMAND_REGISTRATION_DONE
 224 };
 225 int pld_register_commands(struct command_context *cmd_ctx)
 226 {
 227         return register_commands(cmd_ctx, NULL, pld_command_handler);
 228 }