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kernel/linux-rt-4.4.41/drivers/gpu/drm/gma500/mdfld_tpo_vid.c 3.99 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright © 2010 Intel Corporation
   *
   * 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 (including the next
   * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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:
   * jim liu <jim.liu@intel.com>
   * Jackie Li<yaodong.li@intel.com>
   */
  
  #include "mdfld_dsi_dpi.h"
  
  static struct drm_display_mode *tpo_vid_get_config_mode(struct drm_device *dev)
  {
  	struct drm_display_mode *mode;
  	struct drm_psb_private *dev_priv = dev->dev_private;
  	struct oaktrail_timing_info *ti = &dev_priv->gct_data.DTD;
  	bool use_gct = false;
  
  	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
  	if (!mode)
  		return NULL;
  
  	if (use_gct) {
  		mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
  		mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
  		mode->hsync_start = mode->hdisplay +
  				((ti->hsync_offset_hi << 8) |
  				ti->hsync_offset_lo);
  		mode->hsync_end = mode->hsync_start +
  				((ti->hsync_pulse_width_hi << 8) |
  				ti->hsync_pulse_width_lo);
  		mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) |
  								ti->hblank_lo);
  		mode->vsync_start =
  			mode->vdisplay + ((ti->vsync_offset_hi << 8) |
  						ti->vsync_offset_lo);
  		mode->vsync_end =
  			mode->vsync_start + ((ti->vsync_pulse_width_hi << 8) |
  						ti->vsync_pulse_width_lo);
  		mode->vtotal = mode->vdisplay +
  				((ti->vblank_hi << 8) | ti->vblank_lo);
  		mode->clock = ti->pixel_clock * 10;
  
  		dev_dbg(dev->dev, "hdisplay is %d
  ", mode->hdisplay);
  		dev_dbg(dev->dev, "vdisplay is %d
  ", mode->vdisplay);
  		dev_dbg(dev->dev, "HSS is %d
  ", mode->hsync_start);
  		dev_dbg(dev->dev, "HSE is %d
  ", mode->hsync_end);
  		dev_dbg(dev->dev, "htotal is %d
  ", mode->htotal);
  		dev_dbg(dev->dev, "VSS is %d
  ", mode->vsync_start);
  		dev_dbg(dev->dev, "VSE is %d
  ", mode->vsync_end);
  		dev_dbg(dev->dev, "vtotal is %d
  ", mode->vtotal);
  		dev_dbg(dev->dev, "clock is %d
  ", mode->clock);
  	} else {
  		mode->hdisplay = 864;
  		mode->vdisplay = 480;
  		mode->hsync_start = 873;
  		mode->hsync_end = 876;
  		mode->htotal = 887;
  		mode->vsync_start = 487;
  		mode->vsync_end = 490;
  		mode->vtotal = 499;
  		mode->clock = 33264;
  	}
  
  	drm_mode_set_name(mode);
  	drm_mode_set_crtcinfo(mode, 0);
  
  	mode->type |= DRM_MODE_TYPE_PREFERRED;
  
  	return mode;
  }
  
  static int tpo_vid_get_panel_info(struct drm_device *dev,
  				int pipe,
  				struct panel_info *pi)
  {
  	if (!dev || !pi)
  		return -EINVAL;
  
  	pi->width_mm = TPO_PANEL_WIDTH;
  	pi->height_mm = TPO_PANEL_HEIGHT;
  
  	return 0;
  }
  
  /*TPO DPI encoder helper funcs*/
  static const struct drm_encoder_helper_funcs
  				mdfld_tpo_dpi_encoder_helper_funcs = {
  	.dpms = mdfld_dsi_dpi_dpms,
  	.mode_fixup = mdfld_dsi_dpi_mode_fixup,
  	.prepare = mdfld_dsi_dpi_prepare,
  	.mode_set = mdfld_dsi_dpi_mode_set,
  	.commit = mdfld_dsi_dpi_commit,
  };
  
  /*TPO DPI encoder funcs*/
  static const struct drm_encoder_funcs mdfld_tpo_dpi_encoder_funcs = {
  	.destroy = drm_encoder_cleanup,
  };
  
  const struct panel_funcs mdfld_tpo_vid_funcs = {
  	.encoder_funcs = &mdfld_tpo_dpi_encoder_funcs,
  	.encoder_helper_funcs = &mdfld_tpo_dpi_encoder_helper_funcs,
  	.get_config_mode = &tpo_vid_get_config_mode,
  	.get_panel_info = tpo_vid_get_panel_info,
  };