drivers/gpu/drm/i915/intel_drv.h

   1 /*
   2  * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright (c) 2007-2008 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25 #ifndef __INTEL_DRV_H__
  26 #define __INTEL_DRV_H__
  27
  28 #include <linux/i2c.h>
  29 #include <linux/i2c-id.h>
  30 #include <linux/i2c-algo-bit.h>
  31 #include "drm_crtc.h"
  32
  33 #include "drm_crtc_helper.h"
  34 /*
  35  * Display related stuff
  36  */
  37
  38 /* store information about an Ixxx DVO */
  39 /* The i830->i865 use multiple DVOs with multiple i2cs */
  40 /* the i915, i945 have a single sDVO i2c bus - which is different */
  41 #define MAX_OUTPUTS 6
  42 /* maximum connectors per crtcs in the mode set */
  43 #define INTELFB_CONN_LIMIT 4
  44
  45 #define INTEL_I2C_BUS_DVO 1
  46 #define INTEL_I2C_BUS_SDVO 2
  47
  48 /* these are outputs from the chip - integrated only
  49    external chips are via DVO or SDVO output */
  50 #define INTEL_OUTPUT_UNUSED 0
  51 #define INTEL_OUTPUT_ANALOG 1
  52 #define INTEL_OUTPUT_DVO 2
  53 #define INTEL_OUTPUT_SDVO 3
  54 #define INTEL_OUTPUT_LVDS 4
  55 #define INTEL_OUTPUT_TVOUT 5
  56 #define INTEL_OUTPUT_HDMI 6
  57
  58 #define INTEL_DVO_CHIP_NONE 0
  59 #define INTEL_DVO_CHIP_LVDS 1
  60 #define INTEL_DVO_CHIP_TMDS 2
  61 #define INTEL_DVO_CHIP_TVOUT 4
  62
  63 struct intel_i2c_chan {
  64         struct drm_device *drm_dev; /* for getting at dev. private (mmio etc.) */
  65         u32 reg; /* GPIO reg */
  66         struct i2c_adapter adapter;
  67         struct i2c_algo_bit_data algo;
  68         u8 slave_addr;
  69 };
  70
  71 struct intel_framebuffer {
  72         struct drm_framebuffer base;
  73         struct drm_gem_object *obj;
  74 };
  75
  76
  77 struct intel_output {
  78         struct drm_connector base;
  79
  80         struct drm_encoder enc;
  81         int type;
  82         struct intel_i2c_chan *i2c_bus; /* for control functions */
  83         struct intel_i2c_chan *ddc_bus; /* for DDC only stuff */
  84         bool load_detect_temp;
  85         bool needs_tv_clock;
  86         void *dev_priv;
  87 };
  88
  89 struct intel_crtc {
  90         struct drm_crtc base;
  91         int pipe;
  92         int plane;
  93         struct drm_gem_object *cursor_bo;
  94         uint32_t cursor_addr;
  95         u8 lut_r[256], lut_g[256], lut_b[256];
  96         int dpms_mode;
  97         struct intel_framebuffer *fbdev_fb;
  98         /* a mode_set for fbdev users on this crtc */
  99         struct drm_mode_set mode_set;
 100 };
 101
 102 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 103 #define to_intel_output(x) container_of(x, struct intel_output, base)
 104 #define enc_to_intel_output(x) container_of(x, struct intel_output, enc)
 105 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 106
 107 struct intel_i2c_chan *intel_i2c_create(struct drm_device *dev, const u32 reg,
 108                                         const char *name);
 109 void intel_i2c_destroy(struct intel_i2c_chan *chan);
 110 int intel_ddc_get_modes(struct intel_output *intel_output);
 111 extern bool intel_ddc_probe(struct intel_output *intel_output);
 112
 113 extern void intel_crt_init(struct drm_device *dev);
 114 extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
 115 extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
 116 extern void intel_dvo_init(struct drm_device *dev);
 117 extern void intel_tv_init(struct drm_device *dev);
 118 extern void intel_lvds_init(struct drm_device *dev);
 119
 120 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 121 extern void intel_encoder_prepare (struct drm_encoder *encoder);
 122 extern void intel_encoder_commit (struct drm_encoder *encoder);
 123
 124 extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
 125
 126 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 127                                                     struct drm_crtc *crtc);
 128 extern void intel_wait_for_vblank(struct drm_device *dev);
 129 extern struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe);
 130 extern struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
 131                                                    struct drm_display_mode *mode,
 132                                                    int *dpms_mode);
 133 extern void intel_release_load_detect_pipe(struct intel_output *intel_output,
 134                                            int dpms_mode);
 135
 136 extern struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB);
 137 extern int intel_sdvo_supports_hotplug(struct drm_connector *connector);
 138 extern void intel_sdvo_set_hotplug(struct drm_connector *connector, int enable);
 139 extern int intelfb_probe(struct drm_device *dev);
 140 extern int intelfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
 141 extern int intelfb_resize(struct drm_device *dev, struct drm_crtc *crtc);
 142 extern void intelfb_restore(void);
 143 extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 144                                     u16 blue, int regno);
 145
 146 extern int intel_framebuffer_create(struct drm_device *dev,
 147                                     struct drm_mode_fb_cmd *mode_cmd,
 148                                     struct drm_framebuffer **fb,
 149                                     struct drm_gem_object *obj);
 150 #endif /* __INTEL_DRV_H__ */