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 "i915_drv.h"
  30 #include "drm_crtc.h"
  31 #include "drm_crtc_helper.h"
  32 #include "drm_fb_helper.h"
  33
  34 #define _wait_for(COND, MS, W) ({ \
  35         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS);       \
  36         int ret__ = 0;                                                  \
  37         while (!(COND)) {                                               \
  38                 if (time_after(jiffies, timeout__)) {                   \
  39                         ret__ = -ETIMEDOUT;                             \
  40                         break;                                          \
  41                 }                                                       \
  42                 if (W && !(in_atomic() || in_dbg_master())) msleep(W);  \
  43         }                                                               \
  44         ret__;                                                          \
  45 })
  46
  47 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
  48 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
  49
  50 #define MSLEEP(x) do { \
  51         if (in_dbg_master()) \
  52                 mdelay(x); \
  53         else \
  54                 msleep(x); \
  55 } while (0)
  56
  57 #define KHz(x) (1000*x)
  58 #define MHz(x) KHz(1000*x)
  59
  60 /*
  61  * Display related stuff
  62  */
  63
  64 /* store information about an Ixxx DVO */
  65 /* The i830->i865 use multiple DVOs with multiple i2cs */
  66 /* the i915, i945 have a single sDVO i2c bus - which is different */
  67 #define MAX_OUTPUTS 6
  68 /* maximum connectors per crtcs in the mode set */
  69 #define INTELFB_CONN_LIMIT 4
  70
  71 #define INTEL_I2C_BUS_DVO 1
  72 #define INTEL_I2C_BUS_SDVO 2
  73
  74 /* these are outputs from the chip - integrated only
  75    external chips are via DVO or SDVO output */
  76 #define INTEL_OUTPUT_UNUSED 0
  77 #define INTEL_OUTPUT_ANALOG 1
  78 #define INTEL_OUTPUT_DVO 2
  79 #define INTEL_OUTPUT_SDVO 3
  80 #define INTEL_OUTPUT_LVDS 4
  81 #define INTEL_OUTPUT_TVOUT 5
  82 #define INTEL_OUTPUT_HDMI 6
  83 #define INTEL_OUTPUT_DISPLAYPORT 7
  84 #define INTEL_OUTPUT_EDP 8
  85
  86 /* Intel Pipe Clone Bit */
  87 #define INTEL_HDMIB_CLONE_BIT 1
  88 #define INTEL_HDMIC_CLONE_BIT 2
  89 #define INTEL_HDMID_CLONE_BIT 3
  90 #define INTEL_HDMIE_CLONE_BIT 4
  91 #define INTEL_HDMIF_CLONE_BIT 5
  92 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
  93 #define INTEL_SDVO_TV_CLONE_BIT 7
  94 #define INTEL_SDVO_LVDS_CLONE_BIT 8
  95 #define INTEL_ANALOG_CLONE_BIT 9
  96 #define INTEL_TV_CLONE_BIT 10
  97 #define INTEL_DP_B_CLONE_BIT 11
  98 #define INTEL_DP_C_CLONE_BIT 12
  99 #define INTEL_DP_D_CLONE_BIT 13
 100 #define INTEL_LVDS_CLONE_BIT 14
 101 #define INTEL_DVO_TMDS_CLONE_BIT 15
 102 #define INTEL_DVO_LVDS_CLONE_BIT 16
 103 #define INTEL_EDP_CLONE_BIT 17
 104
 105 #define INTEL_DVO_CHIP_NONE 0
 106 #define INTEL_DVO_CHIP_LVDS 1
 107 #define INTEL_DVO_CHIP_TMDS 2
 108 #define INTEL_DVO_CHIP_TVOUT 4
 109
 110 /* drm_display_mode->private_flags */
 111 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
 112 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
 113
 114 static inline void
 115 intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
 116                                 int multiplier)
 117 {
 118         mode->clock *= multiplier;
 119         mode->private_flags |= multiplier;
 120 }
 121
 122 static inline int
 123 intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
 124 {
 125         return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
 126 }
 127
 128 struct intel_framebuffer {
 129         struct drm_framebuffer base;
 130         struct drm_i915_gem_object *obj;
 131 };
 132
 133 struct intel_fbdev {
 134         struct drm_fb_helper helper;
 135         struct intel_framebuffer ifb;
 136         struct list_head fbdev_list;
 137         struct drm_display_mode *our_mode;
 138 };
 139
 140 struct intel_encoder {
 141         struct drm_encoder base;
 142         int type;
 143         bool needs_tv_clock;
 144         void (*hot_plug)(struct intel_encoder *);
 145         int crtc_mask;
 146         int clone_mask;
 147 };
 148
 149 struct intel_connector {
 150         struct drm_connector base;
 151         struct intel_encoder *encoder;
 152 };
 153
 154 struct intel_crtc {
 155         struct drm_crtc base;
 156         enum pipe pipe;
 157         enum plane plane;
 158         u8 lut_r[256], lut_g[256], lut_b[256];
 159         int dpms_mode;
 160         bool active; /* is the crtc on? independent of the dpms mode */
 161         bool busy; /* is scanout buffer being updated frequently? */
 162         struct timer_list idle_timer;
 163         bool lowfreq_avail;
 164         struct intel_overlay *overlay;
 165         struct intel_unpin_work *unpin_work;
 166         int fdi_lanes;
 167
 168         struct drm_i915_gem_object *cursor_bo;
 169         uint32_t cursor_addr;
 170         int16_t cursor_x, cursor_y;
 171         int16_t cursor_width, cursor_height;
 172         bool cursor_visible;
 173         unsigned int bpp;
 174 };
 175
 176 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 177 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 178 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 179 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 180
 181 #define DIP_HEADER_SIZE 5
 182
 183 #define DIP_TYPE_AVI    0x82
 184 #define DIP_VERSION_AVI 0x2
 185 #define DIP_LEN_AVI     13
 186
 187 #define DIP_TYPE_SPD    0x3
 188 #define DIP_VERSION_SPD 0x1
 189 #define DIP_LEN_SPD     25
 190 #define DIP_SPD_UNKNOWN 0
 191 #define DIP_SPD_DSTB    0x1
 192 #define DIP_SPD_DVDP    0x2
 193 #define DIP_SPD_DVHS    0x3
 194 #define DIP_SPD_HDDVR   0x4
 195 #define DIP_SPD_DVC     0x5
 196 #define DIP_SPD_DSC     0x6
 197 #define DIP_SPD_VCD     0x7
 198 #define DIP_SPD_GAME    0x8
 199 #define DIP_SPD_PC      0x9
 200 #define DIP_SPD_BD      0xa
 201 #define DIP_SPD_SCD     0xb
 202
 203 struct dip_infoframe {
 204         uint8_t type;           /* HB0 */
 205         uint8_t ver;            /* HB1 */
 206         uint8_t len;            /* HB2 - body len, not including checksum */
 207         uint8_t ecc;            /* Header ECC */
 208         uint8_t checksum;       /* PB0 */
 209         union {
 210                 struct {
 211                         /* PB1 - Y 6:5, A 4:4, B 3:2, S 1:0 */
 212                         uint8_t Y_A_B_S;
 213                         /* PB2 - C 7:6, M 5:4, R 3:0 */
 214                         uint8_t C_M_R;
 215                         /* PB3 - ITC 7:7, EC 6:4, Q 3:2, SC 1:0 */
 216                         uint8_t ITC_EC_Q_SC;
 217                         /* PB4 - VIC 6:0 */
 218                         uint8_t VIC;
 219                         /* PB5 - PR 3:0 */
 220                         uint8_t PR;
 221                         /* PB6 to PB13 */
 222                         uint16_t top_bar_end;
 223                         uint16_t bottom_bar_start;
 224                         uint16_t left_bar_end;
 225                         uint16_t right_bar_start;
 226                 } avi;
 227                 struct {
 228                         uint8_t vn[8];
 229                         uint8_t pd[16];
 230                         uint8_t sdi;
 231                 } spd;
 232                 uint8_t payload[27];
 233         } __attribute__ ((packed)) body;
 234 } __attribute__((packed));
 235
 236 static inline struct drm_crtc *
 237 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 238 {
 239         struct drm_i915_private *dev_priv = dev->dev_private;
 240         return dev_priv->pipe_to_crtc_mapping[pipe];
 241 }
 242
 243 static inline struct drm_crtc *
 244 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 245 {
 246         struct drm_i915_private *dev_priv = dev->dev_private;
 247         return dev_priv->plane_to_crtc_mapping[plane];
 248 }
 249
 250 struct intel_unpin_work {
 251         struct work_struct work;
 252         struct drm_device *dev;
 253         struct drm_i915_gem_object *old_fb_obj;
 254         struct drm_i915_gem_object *pending_flip_obj;
 255         struct drm_pending_vblank_event *event;
 256         int pending;
 257         bool enable_stall_check;
 258 };
 259
 260 struct intel_fbc_work {
 261         struct delayed_work work;
 262         struct drm_crtc *crtc;
 263         struct drm_framebuffer *fb;
 264         int interval;
 265 };
 266
 267 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 268 extern bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus);
 269
 270 extern void intel_attach_force_audio_property(struct drm_connector *connector);
 271 extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 272
 273 extern void intel_crt_init(struct drm_device *dev);
 274 extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
 275 void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
 276 extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
 277 extern void intel_dvo_init(struct drm_device *dev);
 278 extern void intel_tv_init(struct drm_device *dev);
 279 extern void intel_mark_busy(struct drm_device *dev,
 280                             struct drm_i915_gem_object *obj);
 281 extern bool intel_lvds_init(struct drm_device *dev);
 282 extern void intel_dp_init(struct drm_device *dev, int dp_reg);
 283 void
 284 intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
 285                  struct drm_display_mode *adjusted_mode);
 286 extern bool intel_dpd_is_edp(struct drm_device *dev);
 287 extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
 288 extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
 289
 290 /* intel_panel.c */
 291 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
 292                                    struct drm_display_mode *adjusted_mode);
 293 extern void intel_pch_panel_fitting(struct drm_device *dev,
 294                                     int fitting_mode,
 295                                     struct drm_display_mode *mode,
 296                                     struct drm_display_mode *adjusted_mode);
 297 extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
 298 extern u32 intel_panel_get_backlight(struct drm_device *dev);
 299 extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
 300 extern int intel_panel_setup_backlight(struct drm_device *dev);
 301 extern void intel_panel_enable_backlight(struct drm_device *dev);
 302 extern void intel_panel_disable_backlight(struct drm_device *dev);
 303 extern void intel_panel_destroy_backlight(struct drm_device *dev);
 304 extern enum drm_connector_status intel_panel_detect(struct drm_device *dev);
 305
 306 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 307 extern void intel_encoder_prepare(struct drm_encoder *encoder);
 308 extern void intel_encoder_commit(struct drm_encoder *encoder);
 309 extern void intel_encoder_destroy(struct drm_encoder *encoder);
 310
 311 static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector)
 312 {
 313         return to_intel_connector(connector)->encoder;
 314 }
 315
 316 extern void intel_connector_attach_encoder(struct intel_connector *connector,
 317                                            struct intel_encoder *encoder);
 318 extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
 319
 320 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 321                                                     struct drm_crtc *crtc);
 322 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 323                                 struct drm_file *file_priv);
 324 extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
 325 extern void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
 326
 327 struct intel_load_detect_pipe {
 328         struct drm_framebuffer *release_fb;
 329         bool load_detect_temp;
 330         int dpms_mode;
 331 };
 332 extern bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 333                                        struct drm_connector *connector,
 334                                        struct drm_display_mode *mode,
 335                                        struct intel_load_detect_pipe *old);
 336 extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
 337                                            struct drm_connector *connector,
 338                                            struct intel_load_detect_pipe *old);
 339
 340 extern struct drm_connector* intel_sdvo_find(struct drm_device *dev, int sdvoB);
 341 extern int intel_sdvo_supports_hotplug(struct drm_connector *connector);
 342 extern void intel_sdvo_set_hotplug(struct drm_connector *connector, int enable);
 343 extern void intelfb_restore(void);
 344 extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 345                                     u16 blue, int regno);
 346 extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
 347                                     u16 *blue, int regno);
 348 extern void intel_enable_clock_gating(struct drm_device *dev);
 349 extern void ironlake_enable_drps(struct drm_device *dev);
 350 extern void ironlake_disable_drps(struct drm_device *dev);
 351 extern void gen6_enable_rps(struct drm_i915_private *dev_priv);
 352 extern void gen6_update_ring_freq(struct drm_i915_private *dev_priv);
 353 extern void gen6_disable_rps(struct drm_device *dev);
 354 extern void intel_init_emon(struct drm_device *dev);
 355
 356 extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
 357                                       struct drm_i915_gem_object *obj,
 358                                       struct intel_ring_buffer *pipelined);
 359
 360 extern int intel_framebuffer_init(struct drm_device *dev,
 361                                   struct intel_framebuffer *ifb,
 362                                   struct drm_mode_fb_cmd *mode_cmd,
 363                                   struct drm_i915_gem_object *obj);
 364 extern int intel_fbdev_init(struct drm_device *dev);
 365 extern void intel_fbdev_fini(struct drm_device *dev);
 366
 367 extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
 368 extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
 369 extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
 370
 371 extern void intel_setup_overlay(struct drm_device *dev);
 372 extern void intel_cleanup_overlay(struct drm_device *dev);
 373 extern int intel_overlay_switch_off(struct intel_overlay *overlay);
 374 extern int intel_overlay_put_image(struct drm_device *dev, void *data,
 375                                    struct drm_file *file_priv);
 376 extern int intel_overlay_attrs(struct drm_device *dev, void *data,
 377                                struct drm_file *file_priv);
 378
 379 extern void intel_fb_output_poll_changed(struct drm_device *dev);
 380 extern void intel_fb_restore_mode(struct drm_device *dev);
 381
 382 extern void intel_init_clock_gating(struct drm_device *dev);
 383 extern void intel_write_eld(struct drm_encoder *encoder,
 384                             struct drm_display_mode *mode);
 385 #endif /* __INTEL_DRV_H__ */