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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigf119.c 2.79 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2012 Red Hat Inc.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   * OTHER DEALINGS IN THE SOFTWARE.
   *
   * Authors: Ben Skeggs
   */
  #include "nv50.h"
  
  #include <core/client.h>
  
  #include <nvif/class.h>
  #include <nvif/unpack.h>
  
  int
  gf119_hdmi_ctrl(NV50_DISP_MTHD_V1)
  {
  	struct nvkm_device *device = disp->base.engine.subdev.device;
  	const u32 hoff = (head * 0x800);
  	union {
  		struct nv50_disp_sor_hdmi_pwr_v0 v0;
  	} *args = data;
  	u32 ctrl;
  	int ret;
  
  	nvif_ioctl(object, "disp sor hdmi ctrl size %d
  ", size);
  	if (nvif_unpack(args->v0, 0, 0, false)) {
  		nvif_ioctl(object, "disp sor hdmi ctrl vers %d state %d "
  				   "max_ac_packet %d rekey %d
  ",
  			   args->v0.version, args->v0.state,
  			   args->v0.max_ac_packet, args->v0.rekey);
  		if (args->v0.max_ac_packet > 0x1f || args->v0.rekey > 0x7f)
  			return -EINVAL;
  		ctrl  = 0x40000000 * !!args->v0.state;
  		ctrl |= args->v0.max_ac_packet << 16;
  		ctrl |= args->v0.rekey;
  	} else
  		return ret;
  
  	if (!(ctrl & 0x40000000)) {
  		nvkm_mask(device, 0x616798 + hoff, 0x40000000, 0x00000000);
  		nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000);
  		nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000);
  		return 0;
  	}
  
  	/* AVI InfoFrame */
  	nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000);
  	nvkm_wr32(device, 0x61671c + hoff, 0x000d0282);
  	nvkm_wr32(device, 0x616720 + hoff, 0x0000006f);
  	nvkm_wr32(device, 0x616724 + hoff, 0x00000000);
  	nvkm_wr32(device, 0x616728 + hoff, 0x00000000);
  	nvkm_wr32(device, 0x61672c + hoff, 0x00000000);
  	nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000001);
  
  	/* ??? InfoFrame? */
  	nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000);
  	nvkm_wr32(device, 0x6167ac + hoff, 0x00000010);
  	nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000001);
  
  	/* HDMI_CTRL */
  	nvkm_mask(device, 0x616798 + hoff, 0x401f007f, ctrl);
  	return 0;
  }