drivers/gpu/drm/nouveau/core/engine/disp/hdanva3.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include <core/os.h>
  26 #include <core/class.h>
  27
  28 #include "nv50.h"
  29
  30 int
  31 nva3_hda_eld(struct nv50_disp_priv *priv, int or, u8 *data, u32 size)
  32 {
  33         const u32 soff = (or * 0x800);
  34         int i;
  35
  36         if (data && data[0]) {
  37                 for (i = 0; i < size; i++)
  38                         nv_wr32(priv, 0x61c440 + soff, (i << 8) | data[i]);
  39                 nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000003);
  40         } else
  41         if (data) {
  42                 nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000001);
  43         } else {
  44                 nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000000);
  45         }
  46
  47         return 0;
  48 }