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 "i915_drv.h"
  32 #include "drm_crtc.h"
  33
  34 #include "drm_crtc_helper.h"
  35
  36 #define _wait_for(COND, MS, W) ({ \
  37         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS);       \
  38         int ret__ = 0;                                                  \
  39         while (! (COND)) {                                              \
  40                 if (time_after(jiffies, timeout__)) {                   \
  41                         ret__ = -ETIMEDOUT;                             \
  42                         break;                                          \
  43                 }                                                       \
  44                 if (W && !in_dbg_master()) msleep(W);                   \
  45         }                                                               \
  46         ret__;                                                          \
  47 })
  48
  49 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
  50 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
  51
  52 /*
  53  * Display related stuff
  54  */
  55
  56 /* store information about an Ixxx DVO */
  57 /* The i830->i865 use multiple DVOs with multiple i2cs */
  58 /* the i915, i945 have a single sDVO i2c bus - which is different */
  59 #define MAX_OUTPUTS 6
  60 /* maximum connectors per crtcs in the mode set */
  61 #define INTELFB_CONN_LIMIT 4
  62
  63 #define INTEL_I2C_BUS_DVO 1
  64 #define INTEL_I2C_BUS_SDVO 2
  65
  66 /* these are outputs from the chip - integrated only
  67    external chips are via DVO or SDVO output */
  68 #define INTEL_OUTPUT_UNUSED 0
  69 #define INTEL_OUTPUT_ANALOG 1
  70 #define INTEL_OUTPUT_DVO 2
  71 #define INTEL_OUTPUT_SDVO 3
  72 #define INTEL_OUTPUT_LVDS 4
  73 #define INTEL_OUTPUT_TVOUT 5
  74 #define INTEL_OUTPUT_HDMI 6
  75 #define INTEL_OUTPUT_DISPLAYPORT 7
  76 #define INTEL_OUTPUT_EDP 8
  77
  78 /* Intel Pipe Clone Bit */
  79 #define INTEL_HDMIB_CLONE_BIT 1
  80 #define INTEL_HDMIC_CLONE_BIT 2
  81 #define INTEL_HDMID_CLONE_BIT 3
  82 #define INTEL_HDMIE_CLONE_BIT 4
  83 #define INTEL_HDMIF_CLONE_BIT 5
  84 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
  85 #define INTEL_SDVO_TV_CLONE_BIT 7
  86 #define INTEL_SDVO_LVDS_CLONE_BIT 8
  87 #define INTEL_ANALOG_CLONE_BIT 9
  88 #define INTEL_TV_CLONE_BIT 10
  89 #define INTEL_DP_B_CLONE_BIT 11
  90 #define INTEL_DP_C_CLONE_BIT 12
  91 #define INTEL_DP_D_CLONE_BIT 13
  92 #define INTEL_LVDS_CLONE_BIT 14
  93 #define INTEL_DVO_TMDS_CLONE_BIT 15
  94 #define INTEL_DVO_LVDS_CLONE_BIT 16
  95 #define INTEL_EDP_CLONE_BIT 17
  96
  97 #define INTEL_DVO_CHIP_NONE 0
  98 #define INTEL_DVO_CHIP_LVDS 1
  99 #define INTEL_DVO_CHIP_TMDS 2
 100 #define INTEL_DVO_CHIP_TVOUT 4
 101
 102 /* drm_display_mode->private_flags */
 103 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
 104 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
 105
 106 static inline void
 107 intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
 108                                 int multiplier)
 109 {
 110         mode->clock *= multiplier;
 111         mode->private_flags |= multiplier;
 112 }
 113
 114 static inline int
 115 intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
 116 {
 117         return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
 118 }
 119
 120 struct intel_i2c_chan {
 121         struct drm_device *drm_dev; /* for getting at dev. private (mmio etc.) */
 122         u32 reg; /* GPIO reg */
 123         struct i2c_adapter adapter;
 124         struct i2c_algo_bit_data algo;
 125 };
 126
 127 struct intel_framebuffer {
 128         struct drm_framebuffer base;
 129         struct drm_gem_object *obj;
 130 };
 131
 132
 133 struct intel_encoder {
 134         struct drm_encoder enc;
 135         int type;
 136         struct i2c_adapter *i2c_bus;
 137         struct i2c_adapter *ddc_bus;
 138         bool load_detect_temp;
 139         bool needs_tv_clock;
 140         void (*hot_plug)(struct intel_encoder *);
 141         int crtc_mask;
 142         int clone_mask;
 143 };
 144
 145 struct intel_connector {
 146         struct drm_connector base;
 147 };
 148
 149 struct intel_crtc;
 150 struct intel_overlay {
 151         struct drm_device *dev;
 152         struct intel_crtc *crtc;
 153         struct drm_i915_gem_object *vid_bo;
 154         struct drm_i915_gem_object *old_vid_bo;
 155         int active;
 156         int pfit_active;
 157         u32 pfit_vscale_ratio; /* shifted-point number, (1<<12) == 1.0 */
 158         u32 color_key;
 159         u32 brightness, contrast, saturation;
 160         u32 old_xscale, old_yscale;
 161         /* register access */
 162         u32 flip_addr;
 163         struct drm_i915_gem_object *reg_bo;
 164         /* flip handling */
 165         uint32_t last_flip_req;
 166         int hw_wedged;
 167 #define HW_WEDGED               1
 168 #define NEEDS_WAIT_FOR_FLIP     2
 169 #define RELEASE_OLD_VID         3
 170 #define SWITCH_OFF              4
 171 };
 172
 173 struct intel_crtc {
 174         struct drm_crtc base;
 175         enum pipe pipe;
 176         enum plane plane;
 177         u8 lut_r[256], lut_g[256], lut_b[256];
 178         int dpms_mode;
 179         bool busy; /* is scanout buffer being updated frequently? */
 180         struct timer_list idle_timer;
 181         bool lowfreq_avail;
 182         struct intel_overlay *overlay;
 183         struct intel_unpin_work *unpin_work;
 184         int fdi_lanes;
 185
 186         struct drm_gem_object *cursor_bo;
 187         uint32_t cursor_addr;
 188         int16_t cursor_x, cursor_y;
 189         int16_t cursor_width, cursor_height;
 190         bool cursor_visible, cursor_on;
 191 };
 192
 193 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 194 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 195 #define enc_to_intel_encoder(x) container_of(x, struct intel_encoder, enc)
 196 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 197
 198 struct intel_unpin_work {
 199         struct work_struct work;
 200         struct drm_device *dev;
 201         struct drm_gem_object *old_fb_obj;
 202         struct drm_gem_object *pending_flip_obj;
 203         struct drm_pending_vblank_event *event;
 204         int pending;
 205         bool enable_stall_check;
 206 };
 207
 208 struct i2c_adapter *intel_i2c_create(struct drm_device *dev, const u32 reg,
 209                                      const char *name);
 210 void intel_i2c_destroy(struct i2c_adapter *adapter);
 211 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 212 extern bool intel_ddc_probe(struct intel_encoder *intel_encoder);
 213 void intel_i2c_quirk_set(struct drm_device *dev, bool enable);
 214 void intel_i2c_reset_gmbus(struct drm_device *dev);
 215
 216 extern void intel_crt_init(struct drm_device *dev);
 217 extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
 218 extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
 219 extern void intel_dvo_init(struct drm_device *dev);
 220 extern void intel_tv_init(struct drm_device *dev);
 221 extern void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj);
 222 extern void intel_lvds_init(struct drm_device *dev);
 223 extern void intel_dp_init(struct drm_device *dev, int dp_reg);
 224 void
 225 intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
 226                  struct drm_display_mode *adjusted_mode);
 227 extern bool intel_pch_has_edp(struct drm_crtc *crtc);
 228 extern bool intel_dpd_is_edp(struct drm_device *dev);
 229 extern void intel_edp_link_config (struct intel_encoder *, int *, int *);
 230
 231
 232 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
 233                                    struct drm_display_mode *adjusted_mode);
 234 extern void intel_pch_panel_fitting(struct drm_device *dev,
 235                                     int fitting_mode,
 236                                     struct drm_display_mode *mode,
 237                                     struct drm_display_mode *adjusted_mode);
 238
 239 extern int intel_panel_fitter_pipe (struct drm_device *dev);
 240 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 241 extern void intel_encoder_prepare (struct drm_encoder *encoder);
 242 extern void intel_encoder_commit (struct drm_encoder *encoder);
 243 extern void intel_encoder_destroy(struct drm_encoder *encoder);
 244
 245 extern struct drm_encoder *intel_attached_encoder(struct drm_connector *connector);
 246
 247 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 248                                                     struct drm_crtc *crtc);
 249 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 250                                 struct drm_file *file_priv);
 251 extern void intel_wait_for_vblank_off(struct drm_device *dev, int pipe);
 252 extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
 253 extern struct drm_crtc *intel_get_crtc_from_pipe(struct drm_device *dev, int pipe);
 254 extern struct drm_crtc *intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 255                                                    struct drm_connector *connector,
 256                                                    struct drm_display_mode *mode,
 257                                                    int *dpms_mode);
 258 extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
 259                                            struct drm_connector *connector,
 260                                            int dpms_mode);
 261
 262 extern struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB);
 263 extern int intel_sdvo_supports_hotplug(struct drm_connector *connector);
 264 extern void intel_sdvo_set_hotplug(struct drm_connector *connector, int enable);
 265 extern void intelfb_restore(void);
 266 extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 267                                     u16 blue, int regno);
 268 extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
 269                                     u16 *blue, int regno);
 270 extern void intel_init_clock_gating(struct drm_device *dev);
 271 extern void ironlake_enable_drps(struct drm_device *dev);
 272 extern void ironlake_disable_drps(struct drm_device *dev);
 273
 274 extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
 275                                       struct drm_gem_object *obj);
 276
 277 extern int intel_framebuffer_init(struct drm_device *dev,
 278                                   struct intel_framebuffer *ifb,
 279                                   struct drm_mode_fb_cmd *mode_cmd,
 280                                   struct drm_gem_object *obj);
 281 extern int intel_fbdev_init(struct drm_device *dev);
 282 extern void intel_fbdev_fini(struct drm_device *dev);
 283
 284 extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
 285 extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
 286 extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
 287
 288 extern void intel_setup_overlay(struct drm_device *dev);
 289 extern void intel_cleanup_overlay(struct drm_device *dev);
 290 extern int intel_overlay_switch_off(struct intel_overlay *overlay);
 291 extern int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay,
 292                                                 bool interruptible);
 293 extern int intel_overlay_put_image(struct drm_device *dev, void *data,
 294                                    struct drm_file *file_priv);
 295 extern int intel_overlay_attrs(struct drm_device *dev, void *data,
 296                                struct drm_file *file_priv);
 297
 298 extern void intel_fb_output_poll_changed(struct drm_device *dev);
 299 #endif /* __INTEL_DRV_H__ */