LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagf119.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
  26void
  27gf119_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 = 0x030 * ior->id;
  31        int i;
  32
  33        for (i = 0; i < size; i++)
  34                nvkm_wr32(device, 0x10ec00 + soff, (i << 8) | data[i]);
  35        for (; i < 0x60; i++)
  36                nvkm_wr32(device, 0x10ec00 + soff, (i << 8));
  37        nvkm_mask(device, 0x10ec10 + soff, 0x80000002, 0x80000002);
  38}
  39
  40void
  41gf119_hda_hpd(struct nvkm_ior *ior, int head, bool present)
  42{
  43        struct nvkm_device *device = ior->disp->engine.subdev.device;
  44        const u32 hoff = 0x800 * head;
  45        u32 data = 0x80000000;
  46        u32 mask = 0x80000001;
  47        if (present) {
  48                nvkm_mask(device, 0x616548 + hoff, 0x00000070, 0x00000000);
  49                data |= 0x00000001;
  50        } else {
  51                mask |= 0x00000002;
  52        }
  53        nvkm_mask(device, 0x10ec10 + ior->id * 0x030, mask, data);
  54}
  55