LXR linux/drivers/gpu/drm/nouveau/nvkm/core/enum.c

   1/*
   2 * Copyright (C) 2010 Nouveau Project
   3 *
   4 * All Rights Reserved.
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining
   7 * a copy of this software and associated documentation files (the
   8 * "Software"), to deal in the Software without restriction, including
   9 * without limitation the rights to use, copy, modify, merge, publish,
  10 * distribute, sublicense, and/or sell copies of the Software, and to
  11 * permit persons to whom the Software is furnished to do so, subject to
  12 * the following conditions:
  13 *
  14 * The above copyright notice and this permission notice (including the
  15 * next paragraph) shall be included in all copies or substantial
  16 * portions of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 *
  26 */
  27#include <core/enum.h>
  28
  29const struct nvkm_enum *
  30nvkm_enum_find(const struct nvkm_enum *en, u32 value)
  31{
  32        while (en->name) {
  33                if (en->value == value)
  34                        return en;
  35                en++;
  36        }
  37
  38        return NULL;
  39}
  40
  41void
  42nvkm_snprintbf(char *data, int size, const struct nvkm_bitfield *bf, u32 value)
  43{
  44        bool space = false;
  45        while (size >= 1 && bf->name) {
  46                if (value & bf->mask) {
  47                        int this = snprintf(data, size, "%s%s",
  48                                            space ? " " : "", bf->name);
  49                        size -= this;
  50                        data += this;
  51                        space = true;
  52                }
  53                bf++;
  54        }
  55        data[0] = '\0';
  56}
  57