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 <sys/stat.h>
  14 #include <helper/log.h>
  15 #include <helper/replacements.h>
  16 #include <helper/time_support.h>
  17
  18
  19 static struct pld_driver *pld_drivers[] = {
  20         &efinix_pld,
  21         &gatemate_pld,
  22         &gowin_pld,
  23         &intel_pld,
  24         &lattice_pld,
  25         &virtex2_pld,
  26         NULL,
  27 };
  28
  29 static struct pld_device *pld_devices;
  30
  31 struct pld_device *get_pld_device_by_num(int num)
  32 {
  33         struct pld_device *p;
  34         int i = 0;
  35
  36         for (p = pld_devices; p; p = p->next) {
  37                 if (i++ == num)
  38                         return p;
  39         }
  40
  41         return NULL;
  42 }
  43
  44 /* pld device <driver> [driver_options ...]
  45  */
  46 COMMAND_HANDLER(handle_pld_device_command)
  47 {
  48         int i;
  49         int found = 0;
  50
  51         if (CMD_ARGC < 1)
  52                 return ERROR_COMMAND_SYNTAX_ERROR;
  53
  54         for (i = 0; pld_drivers[i]; i++) {
  55                 if (strcmp(CMD_ARGV[0], pld_drivers[i]->name) == 0) {
  56                         struct pld_device *p, *c;
  57
  58                         /* register pld specific commands */
  59                         int retval;
  60                         if (pld_drivers[i]->commands) {
  61                                 retval = register_commands(CMD_CTX, NULL, pld_drivers[i]->commands);
  62                                 if (retval != ERROR_OK) {
  63                                         LOG_ERROR("couldn't register '%s' commands", CMD_ARGV[0]);
  64                                         return ERROR_FAIL;
  65                                 }
  66                         }
  67
  68                         c = malloc(sizeof(struct pld_device));
  69                         c->driver = pld_drivers[i];
  70                         c->next = NULL;
  71
  72                         retval = CALL_COMMAND_HANDLER(
  73                                         pld_drivers[i]->pld_device_command, c);
  74                         if (retval != ERROR_OK) {
  75                                 LOG_ERROR("'%s' driver rejected pld device",
  76                                         CMD_ARGV[0]);
  77                                 free(c);
  78                                 return ERROR_OK;
  79                         }
  80
  81                         /* put pld device in linked list */
  82                         if (pld_devices) {
  83                                 /* find last pld device */
  84                                 for (p = pld_devices; p && p->next; p = p->next)
  85                                         ;
  86                                 if (p)
  87                                         p->next = c;
  88                         } else
  89                                 pld_devices = c;
  90
  91                         found = 1;
  92                 }
  93         }
  94
  95         /* no matching pld driver found */
  96         if (!found) {
  97                 LOG_ERROR("pld driver '%s' not found", CMD_ARGV[0]);
  98                 exit(-1);
  99         }
 100
 101         return ERROR_OK;
 102 }
 103
 104 COMMAND_HANDLER(handle_pld_devices_command)
 105 {
 106         struct pld_device *p;
 107         int i = 0;
 108
 109         if (!pld_devices) {
 110                 command_print(CMD, "no pld devices configured");
 111                 return ERROR_OK;
 112         }
 113
 114         for (p = pld_devices; p; p = p->next)
 115                 command_print(CMD, "#%i: %s", i++, p->driver->name);
 116
 117         return ERROR_OK;
 118 }
 119
 120 COMMAND_HANDLER(handle_pld_load_command)
 121 {
 122         int retval;
 123         struct timeval start, end, duration;
 124         struct pld_device *p;
 125
 126         gettimeofday(&start, NULL);
 127
 128         if (CMD_ARGC < 2)
 129                 return ERROR_COMMAND_SYNTAX_ERROR;
 130
 131         unsigned dev_id;
 132         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
 133         p = get_pld_device_by_num(dev_id);
 134         if (!p) {
 135                 command_print(CMD, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
 136                 return ERROR_OK;
 137         }
 138
 139         struct stat input_stat;
 140         if (stat(CMD_ARGV[1], &input_stat) == -1) {
 141                 LOG_ERROR("couldn't stat() %s: %s", CMD_ARGV[1], strerror(errno));
 142                 return ERROR_PLD_FILE_LOAD_FAILED;
 143         }
 144
 145         if (S_ISDIR(input_stat.st_mode)) {
 146                 LOG_ERROR("%s is a directory", CMD_ARGV[1]);
 147                 return ERROR_PLD_FILE_LOAD_FAILED;
 148         }
 149
 150         if (input_stat.st_size == 0) {
 151                 LOG_ERROR("Empty file %s", CMD_ARGV[1]);
 152                 return ERROR_PLD_FILE_LOAD_FAILED;
 153         }
 154
 155         retval = p->driver->load(p, CMD_ARGV[1]);
 156         if (retval != ERROR_OK) {
 157                 command_print(CMD, "failed loading file %s to pld device %u",
 158                         CMD_ARGV[1], dev_id);
 159                 return retval;
 160         } else {
 161                 gettimeofday(&end, NULL);
 162                 timeval_subtract(&duration, &end, &start);
 163
 164                 command_print(CMD, "loaded file %s to pld device %u in %jis %jius",
 165                         CMD_ARGV[1], dev_id,
 166                         (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
 167         }
 168
 169         return ERROR_OK;
 170 }
 171
 172 static const struct command_registration pld_exec_command_handlers[] = {
 173         {
 174                 .name = "devices",
 175                 .handler = handle_pld_devices_command,
 176                 .mode = COMMAND_EXEC,
 177                 .help = "list configured pld devices",
 178                 .usage = "",
 179         },
 180         {
 181                 .name = "load",
 182                 .handler = handle_pld_load_command,
 183                 .mode = COMMAND_EXEC,
 184                 .help = "load configuration file into PLD",
 185                 .usage = "pld_num filename",
 186         },
 187         COMMAND_REGISTRATION_DONE
 188 };
 189
 190 static int pld_init(struct command_context *cmd_ctx)
 191 {
 192         if (!pld_devices)
 193                 return ERROR_OK;
 194
 195         return register_commands(cmd_ctx, "pld", pld_exec_command_handlers);
 196 }
 197
 198 COMMAND_HANDLER(handle_pld_init_command)
 199 {
 200         if (CMD_ARGC != 0)
 201                 return ERROR_COMMAND_SYNTAX_ERROR;
 202
 203         static bool pld_initialized;
 204         if (pld_initialized) {
 205                 LOG_INFO("'pld init' has already been called");
 206                 return ERROR_OK;
 207         }
 208         pld_initialized = true;
 209
 210         LOG_DEBUG("Initializing PLDs...");
 211         return pld_init(CMD_CTX);
 212 }
 213
 214 static const struct command_registration pld_config_command_handlers[] = {
 215         {
 216                 .name = "device",
 217                 .mode = COMMAND_CONFIG,
 218                 .handler = handle_pld_device_command,
 219                 .help = "configure a PLD device",
 220                 .usage = "driver_name [driver_args ... ]",
 221         },
 222         {
 223                 .name = "init",
 224                 .mode = COMMAND_CONFIG,
 225                 .handler = handle_pld_init_command,
 226                 .help = "initialize PLD devices",
 227                 .usage = ""
 228         },
 229         COMMAND_REGISTRATION_DONE
 230 };
 231 static const struct command_registration pld_command_handler[] = {
 232         {
 233                 .name = "pld",
 234                 .mode = COMMAND_ANY,
 235                 .help = "programmable logic device commands",
 236                 .usage = "",
 237                 .chain = pld_config_command_handlers,
 238         },
 239         COMMAND_REGISTRATION_DONE
 240 };
 241 int pld_register_commands(struct command_context *cmd_ctx)
 242 {
 243         return register_commands(cmd_ctx, NULL, pld_command_handler);
 244 }