drivers/staging/gma500/mdfld_output.c

   1 /*
   2  * Copyright (c)  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, sublicensen
   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  * Thomas Eaton <thomas.g.eaton@intel.com>
  25  * Scott Rowe <scott.m.rowe@intel.com>
  26 */
  27
  28 #include <linux/init.h>
  29 #include <linux/moduleparam.h>
  30 #include "mdfld_dsi_dbi.h"
  31 #include "mdfld_dsi_dpi.h"
  32 #include "mdfld_dsi_output.h"
  33 #include "mdfld_output.h"
  34 #include "mdfld_dsi_dbi_dpu.h"
  35
  36 #include "displays/tpo_cmd.h"
  37 #include "displays/tpo_vid.h"
  38 #include "displays/tmd_cmd.h"
  39 #include "displays/tmd_vid.h"
  40 #include "displays/pyr_cmd.h"
  41 #include "displays/pyr_vid.h"
  42 /* #include "displays/hdmi.h" */
  43
  44 static int mdfld_dual_mipi;
  45 static int mdfld_hdmi;
  46 static int mdfld_dpu;
  47
  48 module_param(mdfld_dual_mipi, int, 0600);
  49 MODULE_PARM_DESC(mdfld_dual_mipi, "Enable dual MIPI configuration");
  50 module_param(mdfld_hdmi, int, 0600);
  51 MODULE_PARM_DESC(mdfld_hdmi, "Enable Medfield HDMI");
  52 module_param(mdfld_dpu, int, 0600);
  53 MODULE_PARM_DESC(mdfld_dpu, "Enable Medfield DPU");
  54
  55 /* For now a single type per device is all we cope with */
  56 int mdfld_get_panel_type(struct drm_device *dev, int pipe)
  57 {
  58         struct drm_psb_private *dev_priv = dev->dev_private;
  59         return dev_priv->panel_id;
  60 }
  61
  62 int mdfld_panel_dpi(struct drm_device *dev)
  63 {
  64         struct drm_psb_private *dev_priv = dev->dev_private;
  65
  66         switch (dev_priv->panel_id) {
  67         case TMD_VID:
  68         case TPO_VID:
  69         case PYR_VID:
  70                 return true;
  71         case TMD_CMD:
  72         case TPO_CMD:
  73         case PYR_CMD:
  74         default:
  75                 return false;
  76         }
  77 }
  78
  79 static int init_panel(struct drm_device *dev, int mipi_pipe, int p_type)
  80 {
  81         struct panel_funcs *p_cmd_funcs;
  82         struct panel_funcs *p_vid_funcs;
  83
  84         /* Oh boy ... FIXME */
  85         p_cmd_funcs = kzalloc(sizeof(struct panel_funcs), GFP_KERNEL);
  86         if (p_cmd_funcs == NULL)
  87                 return -ENODEV;
  88         p_vid_funcs = kzalloc(sizeof(struct panel_funcs), GFP_KERNEL);
  89         if (p_vid_funcs == NULL) {
  90                 kfree(p_cmd_funcs);
  91                 return -ENODEV;
  92         }
  93
  94         switch (p_type) {
  95         case TPO_CMD:
  96                 tpo_cmd_init(dev, p_cmd_funcs);
  97                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, p_cmd_funcs, NULL);
  98                 break;
  99         case TPO_VID:
 100                 tpo_vid_init(dev, p_vid_funcs);
 101                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, NULL, p_vid_funcs);
 102                 break;
 103         case TMD_CMD:
 104                 /*tmd_cmd_init(dev, p_cmd_funcs); */
 105                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, p_cmd_funcs, NULL);
 106                 break;
 107         case TMD_VID:
 108                 tmd_vid_init(dev, p_vid_funcs);
 109                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, NULL, p_vid_funcs);
 110                 break;
 111         case PYR_CMD:
 112                 pyr_cmd_init(dev, p_cmd_funcs);
 113                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, p_cmd_funcs, NULL);
 114                 break;
 115         case PYR_VID:
 116                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, NULL, p_vid_funcs);
 117                 break;
 118         case TPO:       /* TPO panel supports both cmd & vid interfaces */
 119                 tpo_cmd_init(dev, p_cmd_funcs);
 120                 tpo_vid_init(dev, p_vid_funcs);
 121                 mdfld_dsi_output_init(dev, mipi_pipe, NULL, p_cmd_funcs,
 122                                       p_vid_funcs);
 123                 break;
 124         case TMD:
 125                 break;
 126         case PYR:
 127                 break;
 128 #if 0
 129         case HDMI:
 130                 dev_dbg(dev->dev, "Initializing HDMI");
 131                 mdfld_hdmi_init(dev, &dev_priv->mode_dev);
 132                 break;
 133 #endif
 134         default:
 135                 dev_err(dev->dev, "Unsupported interface %d", p_type);
 136                 return -ENODEV;
 137         }
 138         return 0;
 139 }
 140
 141 int mdfld_output_init(struct drm_device *dev)
 142 {
 143         int type;
 144
 145         /* MIPI panel 1 */
 146         type = mdfld_get_panel_type(dev, 0);
 147         dev_info(dev->dev, "panel 1: type is %d\n", type);
 148         init_panel(dev, 0, type);
 149
 150         if (mdfld_dual_mipi) {
 151                 /* MIPI panel 2 */
 152                 type = mdfld_get_panel_type(dev, 2);
 153                 dev_info(dev->dev, "panel 2: type is %d\n", type);
 154                 init_panel(dev, 2, type);
 155         }
 156         if (mdfld_hdmi)
 157                 /* HDMI panel */
 158                 init_panel(dev, 0, HDMI);
 159         return 0;
 160 }
 161
 162 void mdfld_output_setup(struct drm_device *dev)
 163 {
 164         /* FIXME: this is not the right place for this stuff ! */
 165         if (IS_MFLD(dev)) {
 166                 if (mdfld_dpu)
 167                         mdfld_dbi_dpu_init(dev);
 168                 else
 169                         mdfld_dbi_dsr_init(dev);
 170         }
 171 }