drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.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 #include "ior.h"
  25
  26 void
  27 gt215_hda_eld(struct nvkm_ior *ior, u8 *data, u8 size)
  28 {
  29         struct nvkm_device *device = ior->disp->engine.subdev.device;
  30         const u32 soff = ior->id * 0x800;
  31         int i;
  32
  33         for (i = 0; i < size; i++)
  34                 nvkm_wr32(device, 0x61c440 + soff, (i << 8) | data[i]);
  35         for (; i < 0x60; i++)
  36                 nvkm_wr32(device, 0x61c440 + soff, (i << 8));
  37         nvkm_mask(device, 0x61c448 + soff, 0x80000002, 0x80000002);
  38 }
  39
  40 void
  41 gt215_hda_hpd(struct nvkm_ior *ior, int head, bool present)
  42 {
  43         struct nvkm_device *device = ior->disp->engine.subdev.device;
  44         u32 data = 0x80000000;
  45         u32 mask = 0x80000001;
  46         if (present)
  47                 data |= 0x00000001;
  48         else
  49                 mask |= 0x00000002;
  50         nvkm_mask(device, 0x61c448 + ior->id * 0x800, mask, data);
  51 }