LXR linux/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/cl5070.h>
  29#include <nvif/unpack.h>
  30
  31int
  32gk104_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 = -ENOSYS;
  42
  43        nvif_ioctl(object, "disp sor hdmi ctrl size %d\n", size);
  44        if (!(ret = nvif_unpack(ret, &data, &size, 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}
  85