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