drivers/staging/gma500/mdfld_tmd_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  * Gideon Eaton <eaton.
  27  * Scott Rowe <scott.m.rowe@intel.com>
  28  */
  29
  30 #include "mdfld_dsi_dbi.h"
  31 #include "mdfld_dsi_dpi.h"
  32 #include "mdfld_dsi_output.h"
  33 #include "mdfld_output.h"
  34
  35 #include "mdfld_dsi_pkg_sender.h"
  36
  37 #include "displays/tmd_vid.h"
  38
  39 /* FIXME: static ? */
  40 struct drm_display_mode *tmd_vid_get_config_mode(struct drm_device *dev)
  41 {
  42         struct drm_display_mode *mode;
  43         struct drm_psb_private *dev_priv = dev->dev_private;
  44         struct mrst_timing_info *ti = &dev_priv->gct_data.DTD;
  45         bool use_gct = false; /*Disable GCT for now*/
  46
  47         mode = kzalloc(sizeof(*mode), GFP_KERNEL);
  48         if (!mode) {
  49                 dev_err(dev->dev, "Out of memory\n");
  50                 return NULL;
  51         }
  52
  53         if (use_gct) {
  54                 dev_dbg(dev->dev, "gct find MIPI panel.\n");
  55
  56                 mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
  57                 mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
  58                 mode->hsync_start = mode->hdisplay +
  59                                 ((ti->hsync_offset_hi << 8) |
  60                                 ti->hsync_offset_lo);
  61                 mode->hsync_end = mode->hsync_start +
  62                                 ((ti->hsync_pulse_width_hi << 8) |
  63                                 ti->hsync_pulse_width_lo);
  64                 mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) |
  65                                                                 ti->hblank_lo);
  66                 mode->vsync_start = \
  67                         mode->vdisplay + ((ti->vsync_offset_hi << 8) |
  68                                                 ti->vsync_offset_lo);
  69                 mode->vsync_end = \
  70                         mode->vsync_start + ((ti->vsync_pulse_width_hi << 8) | \
  71                                                 ti->vsync_pulse_width_lo);
  72                 mode->vtotal = mode->vdisplay +
  73                                 ((ti->vblank_hi << 8) | ti->vblank_lo);
  74                 mode->clock = ti->pixel_clock * 10;
  75
  76                 dev_dbg(dev->dev, "hdisplay is %d\n", mode->hdisplay);
  77                 dev_dbg(dev->dev, "vdisplay is %d\n", mode->vdisplay);
  78                 dev_dbg(dev->dev, "HSS is %d\n", mode->hsync_start);
  79                 dev_dbg(dev->dev, "HSE is %d\n", mode->hsync_end);
  80                 dev_dbg(dev->dev, "htotal is %d\n", mode->htotal);
  81                 dev_dbg(dev->dev, "VSS is %d\n", mode->vsync_start);
  82                 dev_dbg(dev->dev, "VSE is %d\n", mode->vsync_end);
  83                 dev_dbg(dev->dev, "vtotal is %d\n", mode->vtotal);
  84                 dev_dbg(dev->dev, "clock is %d\n", mode->clock);
  85         } else {
  86                 mode->hdisplay = 480;
  87                 mode->vdisplay = 854;
  88                 mode->hsync_start = 487;
  89                 mode->hsync_end = 490;
  90                 mode->htotal = 499;
  91                 mode->vsync_start = 861;
  92                 mode->vsync_end = 865;
  93                 mode->vtotal = 873;
  94                 mode->clock = 33264;
  95         }
  96         drm_mode_set_name(mode);
  97         drm_mode_set_crtcinfo(mode, 0);
  98
  99         mode->type |= DRM_MODE_TYPE_PREFERRED;
 100
 101         return mode;
 102 }
 103
 104 static int tmd_vid_get_panel_info(struct drm_device *dev,
 105                                 int pipe,
 106                                 struct panel_info *pi)
 107 {
 108         if (!dev || !pi)
 109                 return -EINVAL;
 110
 111         pi->width_mm = TMD_PANEL_WIDTH;
 112         pi->height_mm = TMD_PANEL_HEIGHT;
 113
 114         return 0;
 115 }
 116
 117 /* TMD DPI encoder helper funcs */
 118 static const struct drm_encoder_helper_funcs
 119                                         mdfld_tpo_dpi_encoder_helper_funcs = {
 120         .dpms = mdfld_dsi_dpi_dpms,
 121         .mode_fixup = mdfld_dsi_dpi_mode_fixup,
 122         .prepare = mdfld_dsi_dpi_prepare,
 123         .mode_set = mdfld_dsi_dpi_mode_set,
 124         .commit = mdfld_dsi_dpi_commit,
 125 };
 126
 127 /* TMD DPI encoder funcs */
 128 static const struct drm_encoder_funcs mdfld_tpo_dpi_encoder_funcs = {
 129         .destroy = drm_encoder_cleanup,
 130 };
 131
 132 void tmd_vid_init(struct drm_device *dev, struct panel_funcs *p_funcs)
 133 {
 134         if (!dev || !p_funcs) {
 135                 dev_err(dev->dev, "Invalid parameters\n");
 136                 return;
 137         }
 138
 139         p_funcs->encoder_funcs = &mdfld_tpo_dpi_encoder_funcs;
 140         p_funcs->encoder_helper_funcs = &mdfld_tpo_dpi_encoder_helper_funcs;
 141         p_funcs->get_config_mode = &tmd_vid_get_config_mode;
 142         p_funcs->update_fb = NULL;
 143         p_funcs->get_panel_info = tmd_vid_get_panel_info;
 144 }