drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigk104.c

   1 /*
   2  * Copyright 2014 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 "nv50.h"
  25
  26 #include <core/client.h>
  27
  28 #include <nvif/class.h>
  29 #include <nvif/unpack.h>
  30
  31 int
  32 gk104_hdmi_ctrl(NV50_DISP_MTHD_V1)
  33 {
  34         struct nvkm_device *device = disp->base.engine.subdev.device;
  35         const u32 hoff = (head * 0x800);
  36         const u32 hdmi = (head * 0x400);
  37         union {
  38                 struct nv50_disp_sor_hdmi_pwr_v0 v0;
  39         } *args = data;
  40         u32 ctrl;
  41         int ret;
  42
  43         nvif_ioctl(object, "disp sor hdmi ctrl size %d\n", size);
  44         if (nvif_unpack(args->v0, 0, 0, false)) {
  45                 nvif_ioctl(object, "disp sor hdmi ctrl vers %d state %d "
  46                                    "max_ac_packet %d rekey %d\n",
  47                            args->v0.version, args->v0.state,
  48                            args->v0.max_ac_packet, args->v0.rekey);
  49                 if (args->v0.max_ac_packet > 0x1f || args->v0.rekey > 0x7f)
  50                         return -EINVAL;
  51                 ctrl  = 0x40000000 * !!args->v0.state;
  52                 ctrl |= args->v0.max_ac_packet << 16;
  53                 ctrl |= args->v0.rekey;
  54         } else
  55                 return ret;
  56
  57         if (!(ctrl & 0x40000000)) {
  58                 nvkm_mask(device, 0x616798 + hoff, 0x40000000, 0x00000000);
  59                 nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000);
  60                 nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000);
  61                 return 0;
  62         }
  63
  64         /* AVI InfoFrame */
  65         nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000);
  66         nvkm_wr32(device, 0x690008 + hdmi, 0x000d0282);
  67         nvkm_wr32(device, 0x69000c + hdmi, 0x0000006f);
  68         nvkm_wr32(device, 0x690010 + hdmi, 0x00000000);
  69         nvkm_wr32(device, 0x690014 + hdmi, 0x00000000);
  70         nvkm_wr32(device, 0x690018 + hdmi, 0x00000000);
  71         nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000001);
  72
  73         /* ??? InfoFrame? */
  74         nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000);
  75         nvkm_wr32(device, 0x6900cc + hdmi, 0x00000010);
  76         nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000001);
  77
  78         /* ??? */
  79         nvkm_wr32(device, 0x690080 + hdmi, 0x82000000);
  80
  81         /* HDMI_CTRL */
  82         nvkm_mask(device, 0x616798 + hoff, 0x401f007f, ctrl);
  83         return 0;
  84 }