drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigt215.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 "hdmi.h"
  25
  26 void
  27 gt215_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet,
  28                 u8 rekey, u8 *avi, u8 avi_size, u8 *vendor, u8 vendor_size)
  29 {
  30         struct nvkm_device *device = ior->disp->engine.subdev.device;
  31         const u32 ctrl = 0x40000000 * enable |
  32                          0x1f000000 /* ??? */ |
  33                          max_ac_packet << 16 |
  34                          rekey;
  35         const u32 soff = nv50_ior_base(ior);
  36         struct packed_hdmi_infoframe avi_infoframe;
  37         struct packed_hdmi_infoframe vendor_infoframe;
  38
  39         pack_hdmi_infoframe(&avi_infoframe, avi, avi_size);
  40         pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size);
  41
  42         if (!(ctrl & 0x40000000)) {
  43                 nvkm_mask(device, 0x61c5a4 + soff, 0x40000000, 0x00000000);
  44                 nvkm_mask(device, 0x61c53c + soff, 0x00000001, 0x00000000);
  45                 nvkm_mask(device, 0x61c520 + soff, 0x00000001, 0x00000000);
  46                 nvkm_mask(device, 0x61c500 + soff, 0x00000001, 0x00000000);
  47                 return;
  48         }
  49
  50         /* AVI InfoFrame */
  51         nvkm_mask(device, 0x61c520 + soff, 0x00000001, 0x00000000);
  52         if (avi_size) {
  53                 nvkm_wr32(device, 0x61c528 + soff, avi_infoframe.header);
  54                 nvkm_wr32(device, 0x61c52c + soff, avi_infoframe.subpack0_low);
  55                 nvkm_wr32(device, 0x61c530 + soff, avi_infoframe.subpack0_high);
  56                 nvkm_wr32(device, 0x61c534 + soff, avi_infoframe.subpack1_low);
  57                 nvkm_wr32(device, 0x61c538 + soff, avi_infoframe.subpack1_high);
  58                 nvkm_mask(device, 0x61c520 + soff, 0x00000001, 0x00000001);
  59         }
  60
  61         /* Audio InfoFrame */
  62         nvkm_mask(device, 0x61c500 + soff, 0x00000001, 0x00000000);
  63         nvkm_wr32(device, 0x61c508 + soff, 0x000a0184);
  64         nvkm_wr32(device, 0x61c50c + soff, 0x00000071);
  65         nvkm_wr32(device, 0x61c510 + soff, 0x00000000);
  66         nvkm_mask(device, 0x61c500 + soff, 0x00000001, 0x00000001);
  67
  68         /* Vendor InfoFrame */
  69         nvkm_mask(device, 0x61c53c + soff, 0x00010001, 0x00010000);
  70         if (vendor_size) {
  71                 nvkm_wr32(device, 0x61c544 + soff, vendor_infoframe.header);
  72                 nvkm_wr32(device, 0x61c548 + soff, vendor_infoframe.subpack0_low);
  73                 nvkm_wr32(device, 0x61c54c + soff, vendor_infoframe.subpack0_high);
  74                 /* Is there a second (or up to fourth?) set of subpack registers here? */
  75                 /* nvkm_wr32(device, 0x61c550 + soff, vendor_infoframe.subpack1_low); */
  76                 /* nvkm_wr32(device, 0x61c554 + soff, vendor_infoframe.subpack1_high); */
  77                 nvkm_mask(device, 0x61c53c + soff, 0x00010001, 0x00010001);
  78         }
  79
  80         nvkm_mask(device, 0x61c5d0 + soff, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
  81         nvkm_mask(device, 0x61c568 + soff, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
  82         nvkm_mask(device, 0x61c578 + soff, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */
  83
  84         /* ??? */
  85         nvkm_mask(device, 0x61733c, 0x00100000, 0x00100000); /* RESETF */
  86         nvkm_mask(device, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */
  87         nvkm_mask(device, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
  88
  89         /* HDMI_CTRL */
  90         nvkm_mask(device, 0x61c5a4 + soff, 0x5f1f007f, ctrl);
  91 }