drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigv100.c

   1 /*
   2  * Copyright 2018 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 #include "hdmi.h"
  23
  24 void
  25 gv100_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet,
  26                 u8 rekey, u8 *avi, u8 avi_size, u8 *vendor, u8 vendor_size)
  27 {
  28         struct nvkm_device *device = ior->disp->engine.subdev.device;
  29         const u32 ctrl = 0x40000000 * enable |
  30                          max_ac_packet << 16 |
  31                          rekey;
  32         const u32 hoff = head * 0x800;
  33         const u32 hdmi = head * 0x400;
  34         struct packed_hdmi_infoframe avi_infoframe;
  35         struct packed_hdmi_infoframe vendor_infoframe;
  36
  37         pack_hdmi_infoframe(&avi_infoframe, avi, avi_size);
  38         pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size);
  39
  40         if (!(ctrl & 0x40000000)) {
  41                 nvkm_mask(device, 0x6165c0 + hoff, 0x40000000, 0x00000000);
  42                 nvkm_mask(device, 0x6f0100 + hdmi, 0x00000001, 0x00000000);
  43                 nvkm_mask(device, 0x6f00c0 + hdmi, 0x00000001, 0x00000000);
  44                 nvkm_mask(device, 0x6f0000 + hdmi, 0x00000001, 0x00000000);
  45                 return;
  46         }
  47
  48         /* AVI InfoFrame (AVI). */
  49         nvkm_mask(device, 0x6f0000 + hdmi, 0x00000001, 0x00000000);
  50         if (avi_size) {
  51                 nvkm_wr32(device, 0x6f0008 + hdmi, avi_infoframe.header);
  52                 nvkm_wr32(device, 0x6f000c + hdmi, avi_infoframe.subpack0_low);
  53                 nvkm_wr32(device, 0x6f0010 + hdmi, avi_infoframe.subpack0_high);
  54                 nvkm_wr32(device, 0x6f0014 + hdmi, avi_infoframe.subpack1_low);
  55                 nvkm_wr32(device, 0x6f0018 + hdmi, avi_infoframe.subpack1_high);
  56                 nvkm_mask(device, 0x6f0000 + hdmi, 0x00000001, 0x00000001);
  57         }
  58
  59         /* Vendor-specific InfoFrame (VSI). */
  60         nvkm_mask(device, 0x6f0100 + hdmi, 0x00010001, 0x00000000);
  61         if (vendor_size) {
  62                 nvkm_wr32(device, 0x6f0108 + hdmi, vendor_infoframe.header);
  63                 nvkm_wr32(device, 0x6f010c + hdmi, vendor_infoframe.subpack0_low);
  64                 nvkm_wr32(device, 0x6f0110 + hdmi, vendor_infoframe.subpack0_high);
  65                 nvkm_wr32(device, 0x6f0110 + hdmi, 0x00000000);
  66                 nvkm_wr32(device, 0x6f0114 + hdmi, 0x00000000);
  67                 nvkm_wr32(device, 0x6f0118 + hdmi, 0x00000000);
  68                 nvkm_wr32(device, 0x6f011c + hdmi, 0x00000000);
  69                 nvkm_wr32(device, 0x6f0120 + hdmi, 0x00000000);
  70                 nvkm_wr32(device, 0x6f0124 + hdmi, 0x00000000);
  71                 nvkm_mask(device, 0x6f0100 + hdmi, 0x00000001, 0x00000001);
  72         }
  73
  74
  75         /* General Control (GCP). */
  76         nvkm_mask(device, 0x6f00c0 + hdmi, 0x00000001, 0x00000000);
  77         nvkm_wr32(device, 0x6f00cc + hdmi, 0x00000010);
  78         nvkm_mask(device, 0x6f00c0 + hdmi, 0x00000001, 0x00000001);
  79
  80         /* Audio Clock Regeneration (ACR). */
  81         nvkm_wr32(device, 0x6f0080 + hdmi, 0x82000000);
  82
  83         /* NV_PDISP_SF_HDMI_CTRL. */
  84         nvkm_mask(device, 0x6165c0 + hoff, 0x401f007f, ctrl);
  85 }