util/getpir/code_gen.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "pirq_routing.h"
   4
   5 static char *preamble[] = {
   6
   7         "/*\n",
   8         " * This file is part of the coreboot project.\n",
   9         " *\n",
  10         " * Copyright (C) 200x TODO <TODO@TODO>\n",
  11         " *\n",
  12         " * This program is free software; you can redistribute it and/or modify\n",
  13         " * it under the terms of the GNU General Public License as published by\n",
  14         " * the Free Software Foundation; either version 2 of the License, or\n",
  15         " * (at your option) any later version.\n",
  16         " *\n",
  17         " * This program is distributed in the hope that it will be useful,\n",
  18         " * but WITHOUT ANY WARRANTY; without even the implied warranty of\n",
  19         " * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n",
  20         " * GNU General Public License for more details.\n",
  21         " *\n",
  22         " * You should have received a copy of the GNU General Public License\n",
  23         " * along with this program; if not, write to the Free Software\n",
  24         " * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA\n",
  25         " */\n\n",
  26         "#ifdef GETPIR                  /* TODO: Drop this when copying to coreboot. */\n",
  27         "#include \"pirq_routing.h\"    /* TODO: Drop this when copying to coreboot. */\n",
  28         "#else                          /* TODO: Drop this when copying to coreboot. */\n"
  29         "#include <arch/pirq_routing.h>\n",
  30         "#endif                         /* TODO: Drop this when copying to coreboot. */\n\n"
  31         "const struct irq_routing_table intel_irq_routing_table = {\n",
  32         "\tPIRQ_SIGNATURE,              /* u32 signature */\n",
  33         "\tPIRQ_VERSION,                /* u16 version */\n",
  34         0
  35 };
  36
  37 void code_gen(char *filename, struct irq_routing_table *rt)
  38 {
  39         char **code = preamble;
  40         struct irq_info *se_arr = (struct irq_info *) ((char *) rt + 32);
  41         int i, ts = (rt->size - 32) / 16;
  42         FILE *fpir;
  43
  44         if ((fpir = fopen(filename, "w")) == NULL) {
  45                 printf("Failed creating file!\n");
  46                 exit(2);
  47         }
  48
  49         while (*code)
  50                 fprintf(fpir, "%s", *code++);
  51
  52         fprintf(fpir, "\t32 + 16 * %d,          /* Max. number of devices on the bus */\n",
  53                 ts);
  54         fprintf(fpir, "\t0x%02x,                        /* Interrupt router bus */\n",
  55                 rt->rtr_bus);
  56         fprintf(fpir, "\t(0x%02x << 3) | 0x%01x,        /* Interrupt router dev */\n",
  57                 rt->rtr_devfn >> 3, rt->rtr_devfn & 7);
  58         fprintf(fpir, "\t%#x,                   /* IRQs devoted exclusively to PCI usage */\n",
  59                 rt->exclusive_irqs);
  60         fprintf(fpir, "\t%#x,                   /* Vendor */\n", rt->rtr_vendor);
  61         fprintf(fpir, "\t%#x,                   /* Device */\n", rt->rtr_device);
  62         fprintf(fpir, "\t%#x,                   /* Miniport */\n",
  63                 rt->miniport_data);
  64         fprintf(fpir, "\t{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */\n");
  65         fprintf(fpir, "\t%#x,                   /* Checksum (has to be set to some value that\n                          * would give 0 after the sum of all bytes\n                             * for this structure (including checksum).\n                                 */\n",
  66                 rt->checksum);
  67         fprintf(fpir, "\t{\n");
  68         fprintf(fpir, "\t\t/* bus,        dev | fn,   {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap}, slot, rfu */\n");
  69         for (i = 0; i < ts; i++) {
  70                 fprintf(fpir, "\t\t{0x%02x, (0x%02x << 3) | 0x%01x, {{0x%02x, 0x%04x}, {0x%02x, 0x%04x}, {0x%02x, 0x%04x}, {0x%02x, 0x%04x}}, 0x%x, 0x%x},\n",
  71                         (se_arr+i)->bus, (se_arr+i)->devfn >> 3,
  72                         (se_arr+i)->devfn & 7, (se_arr+i)->irq[0].link,
  73                         (se_arr+i)->irq[0].bitmap, (se_arr+i)->irq[1].link,
  74                         (se_arr+i)->irq[1].bitmap, (se_arr+i)->irq[2].link,
  75                         (se_arr+i)->irq[2].bitmap, (se_arr+i)->irq[3].link,
  76                         (se_arr+i)->irq[3].bitmap, (se_arr+i)->slot,
  77                         (se_arr+i)->rfu);
  78         }
  79         fprintf(fpir, "\t}\n");
  80         fprintf(fpir, "};\n");
  81
  82         fprintf(fpir, "\nunsigned long write_pirq_routing_table(unsigned long addr)\n");
  83         fprintf(fpir, "{\n");
  84         fprintf(fpir, "\treturn copy_pirq_routing_table(addr);\n");
  85         fprintf(fpir, "}\n");
  86
  87         fclose(fpir);
  88 }