drivers/staging/gma500/mdfld_tpo_vid.c

   1 /*
   2  * Copyright © 2010 Intel Corporation
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  * jim liu <jim.liu@intel.com>
  25  * Jackie Li<yaodong.li@intel.com>
  26  */
  27
  28 #include "mdfld_dsi_dbi.h"
  29 #include "mdfld_dsi_dpi.h"
  30 #include "mdfld_dsi_output.h"
  31 #include "mdfld_output.h"
  32
  33 #include "mdfld_dsi_pkg_sender.h"
  34
  35 #include "displays/tpo_vid.h"
  36
  37 static struct drm_display_mode *tpo_vid_get_config_mode(struct drm_device *dev)
  38 {
  39         struct drm_display_mode *mode;
  40         struct drm_psb_private *dev_priv = dev->dev_private;
  41         struct mrst_timing_info *ti = &dev_priv->gct_data.DTD;
  42         bool use_gct = false;
  43
  44         mode = kzalloc(sizeof(*mode), GFP_KERNEL);
  45         if (!mode) {
  46                 dev_err(dev->dev, "out of memory\n");
  47                 return NULL;
  48         }
  49
  50         if (use_gct) {
  51                 mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
  52                 mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
  53                 mode->hsync_start = mode->hdisplay + \
  54                                 ((ti->hsync_offset_hi << 8) | \
  55                                 ti->hsync_offset_lo);
  56                 mode->hsync_end = mode->hsync_start + \
  57                                 ((ti->hsync_pulse_width_hi << 8) | \
  58                                 ti->hsync_pulse_width_lo);
  59                 mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) | \
  60                                                                 ti->hblank_lo);
  61                 mode->vsync_start = \
  62                         mode->vdisplay + ((ti->vsync_offset_hi << 8) | \
  63                                                 ti->vsync_offset_lo);
  64                 mode->vsync_end = \
  65                         mode->vsync_start + ((ti->vsync_pulse_width_hi << 8) | \
  66                                                 ti->vsync_pulse_width_lo);
  67                 mode->vtotal = mode->vdisplay + \
  68                                 ((ti->vblank_hi << 8) | ti->vblank_lo);
  69                 mode->clock = ti->pixel_clock * 10;
  70
  71                 dev_dbg(dev->dev, "hdisplay is %d\n", mode->hdisplay);
  72                 dev_dbg(dev->dev, "vdisplay is %d\n", mode->vdisplay);
  73                 dev_dbg(dev->dev, "HSS is %d\n", mode->hsync_start);
  74                 dev_dbg(dev->dev, "HSE is %d\n", mode->hsync_end);
  75                 dev_dbg(dev->dev, "htotal is %d\n", mode->htotal);
  76                 dev_dbg(dev->dev, "VSS is %d\n", mode->vsync_start);
  77                 dev_dbg(dev->dev, "VSE is %d\n", mode->vsync_end);
  78                 dev_dbg(dev->dev, "vtotal is %d\n", mode->vtotal);
  79                 dev_dbg(dev->dev, "clock is %d\n", mode->clock);
  80         } else {
  81                 mode->hdisplay = 864;
  82                 mode->vdisplay = 480;
  83                 mode->hsync_start = 873;
  84                 mode->hsync_end = 876;
  85                 mode->htotal = 887;
  86                 mode->vsync_start = 487;
  87                 mode->vsync_end = 490;
  88                 mode->vtotal = 499;
  89                 mode->clock = 33264;
  90         }
  91
  92         drm_mode_set_name(mode);
  93         drm_mode_set_crtcinfo(mode, 0);
  94
  95         mode->type |= DRM_MODE_TYPE_PREFERRED;
  96
  97         return mode;
  98 }
  99
 100 static int tpo_vid_get_panel_info(struct drm_device *dev,
 101                                 int pipe,
 102                                 struct panel_info *pi)
 103 {
 104         if (!dev || !pi)
 105                 return -EINVAL;
 106
 107         pi->width_mm = TPO_PANEL_WIDTH;
 108         pi->height_mm = TPO_PANEL_HEIGHT;
 109
 110         return 0;
 111 }
 112
 113 /*TPO DPI encoder helper funcs*/
 114 static const struct drm_encoder_helper_funcs
 115                                         mdfld_tpo_dpi_encoder_helper_funcs = {
 116         .dpms = mdfld_dsi_dpi_dpms,
 117         .mode_fixup = mdfld_dsi_dpi_mode_fixup,
 118         .prepare = mdfld_dsi_dpi_prepare,
 119         .mode_set = mdfld_dsi_dpi_mode_set,
 120         .commit = mdfld_dsi_dpi_commit,
 121 };
 122
 123 /*TPO DPI encoder funcs*/
 124 static const struct drm_encoder_funcs mdfld_tpo_dpi_encoder_funcs = {
 125         .destroy = drm_encoder_cleanup,
 126 };
 127
 128 void tpo_vid_init(struct drm_device *dev, struct panel_funcs *p_funcs)
 129 {
 130         if (!dev || !p_funcs) {
 131                 dev_err(dev->dev, "tpo_vid_init: Invalid parameters\n");
 132                 return;
 133         }
 134
 135         p_funcs->encoder_funcs = &mdfld_tpo_dpi_encoder_funcs;
 136         p_funcs->encoder_helper_funcs = &mdfld_tpo_dpi_encoder_helper_funcs;
 137         p_funcs->get_config_mode = &tpo_vid_get_config_mode;
 138         p_funcs->update_fb = NULL;
 139         p_funcs->get_panel_info = tpo_vid_get_panel_info;
 140 }