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_drm.h"
30 #include "i915_drv.h"
31 #include "drm_crtc.h"
32 #include "drm_crtc_helper.h"
33 #include "drm_fb_helper.h"
34
35 #define _wait_for(COND, MS, W) ({ \
36 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
37 int ret__ = 0; \
38 while (!(COND)) { \
39 if (time_after(jiffies, timeout__)) { \
40 ret__ = -ETIMEDOUT; \
41 break; \
42 } \
43 if (W && drm_can_sleep()) msleep(W); \
44 } \
45 ret__; \
46 })
47
48 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
49 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
50
51 #define KHz(x) (1000*x)
52 #define MHz(x) KHz(1000*x)
53
54 /*
55 * Display related stuff
56 */
57
58 /* store information about an Ixxx DVO */
59 /* The i830->i865 use multiple DVOs with multiple i2cs */
60 /* the i915, i945 have a single sDVO i2c bus - which is different */
61 #define MAX_OUTPUTS 6
62 /* maximum connectors per crtcs in the mode set */
63 #define INTELFB_CONN_LIMIT 4
64
65 #define INTEL_I2C_BUS_DVO 1
66 #define INTEL_I2C_BUS_SDVO 2
67
68 /* these are outputs from the chip - integrated only
69 external chips are via DVO or SDVO output */
70 #define INTEL_OUTPUT_UNUSED 0
71 #define INTEL_OUTPUT_ANALOG 1
72 #define INTEL_OUTPUT_DVO 2
73 #define INTEL_OUTPUT_SDVO 3
74 #define INTEL_OUTPUT_LVDS 4
75 #define INTEL_OUTPUT_TVOUT 5
76 #define INTEL_OUTPUT_HDMI 6
77 #define INTEL_OUTPUT_DISPLAYPORT 7
78 #define INTEL_OUTPUT_EDP 8
79
80 /* Intel Pipe Clone Bit */
81 #define INTEL_HDMIB_CLONE_BIT 1
82 #define INTEL_HDMIC_CLONE_BIT 2
83 #define INTEL_HDMID_CLONE_BIT 3
84 #define INTEL_HDMIE_CLONE_BIT 4
85 #define INTEL_HDMIF_CLONE_BIT 5
86 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
87 #define INTEL_SDVO_TV_CLONE_BIT 7
88 #define INTEL_SDVO_LVDS_CLONE_BIT 8
89 #define INTEL_ANALOG_CLONE_BIT 9
90 #define INTEL_TV_CLONE_BIT 10
91 #define INTEL_DP_B_CLONE_BIT 11
92 #define INTEL_DP_C_CLONE_BIT 12
93 #define INTEL_DP_D_CLONE_BIT 13
94 #define INTEL_LVDS_CLONE_BIT 14
95 #define INTEL_DVO_TMDS_CLONE_BIT 15
96 #define INTEL_DVO_LVDS_CLONE_BIT 16
97 #define INTEL_EDP_CLONE_BIT 17
98
99 #define INTEL_DVO_CHIP_NONE 0
100 #define INTEL_DVO_CHIP_LVDS 1
101 #define INTEL_DVO_CHIP_TMDS 2
102 #define INTEL_DVO_CHIP_TVOUT 4
103
104 /* drm_display_mode->private_flags */
105 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
106 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
107 #define INTEL_MODE_DP_FORCE_6BPC (0x10)
108 /* This flag must be set by the encoder's mode_fixup if it changes the crtc
109 * timings in the mode to prevent the crtc fixup from overwriting them.
110 * Currently only lvds needs that. */
111 #define INTEL_MODE_CRTC_TIMINGS_SET (0x20)
112
113 static inline void
intel_mode_set_pixel_multiplier(struct drm_display_mode * mode,int multiplier)114 intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
115 int multiplier)
116 {
117 mode->clock *= multiplier;
118 mode->private_flags |= multiplier;
119 }
120
121 static inline int
intel_mode_get_pixel_multiplier(const struct drm_display_mode * mode)122 intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
123 {
124 return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
125 }
126
127 struct intel_framebuffer {
128 struct drm_framebuffer base;
129 struct drm_i915_gem_object *obj;
130 };
131
132 struct intel_fbdev {
133 struct drm_fb_helper helper;
134 struct intel_framebuffer ifb;
135 struct list_head fbdev_list;
136 struct drm_display_mode *our_mode;
137 };
138
139 struct intel_encoder {
140 struct drm_encoder base;
141 int type;
142 bool needs_tv_clock;
143 void (*hot_plug)(struct intel_encoder *);
144 int crtc_mask;
145 int clone_mask;
146 };
147
148 struct intel_connector {
149 struct drm_connector base;
150 struct intel_encoder *encoder;
151 };
152
153 struct intel_crtc {
154 struct drm_crtc base;
155 enum pipe pipe;
156 enum plane plane;
157 u8 lut_r[256], lut_g[256], lut_b[256];
158 int dpms_mode;
159 bool active; /* is the crtc on? independent of the dpms mode */
160 bool busy; /* is scanout buffer being updated frequently? */
161 struct timer_list idle_timer;
162 bool lowfreq_avail;
163 struct intel_overlay *overlay;
164 struct intel_unpin_work *unpin_work;
165 int fdi_lanes;
166
167 struct drm_i915_gem_object *cursor_bo;
168 uint32_t cursor_addr;
169 int16_t cursor_x, cursor_y;
170 int16_t cursor_width, cursor_height;
171 bool cursor_visible;
172 unsigned int bpp;
173
174 bool no_pll; /* tertiary pipe for IVB */
175 bool use_pll_a;
176 };
177
178 struct intel_plane {
179 struct drm_plane base;
180 enum pipe pipe;
181 struct drm_i915_gem_object *obj;
182 bool primary_disabled;
183 int max_downscale;
184 u32 lut_r[1024], lut_g[1024], lut_b[1024];
185 void (*update_plane)(struct drm_plane *plane,
186 struct drm_framebuffer *fb,
187 struct drm_i915_gem_object *obj,
188 int crtc_x, int crtc_y,
189 unsigned int crtc_w, unsigned int crtc_h,
190 uint32_t x, uint32_t y,
191 uint32_t src_w, uint32_t src_h);
192 void (*disable_plane)(struct drm_plane *plane);
193 int (*update_colorkey)(struct drm_plane *plane,
194 struct drm_intel_sprite_colorkey *key);
195 void (*get_colorkey)(struct drm_plane *plane,
196 struct drm_intel_sprite_colorkey *key);
197 };
198
199 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
200 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
201 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
202 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
203 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
204
205 #define DIP_HEADER_SIZE 5
206
207 #define DIP_TYPE_AVI 0x82
208 #define DIP_VERSION_AVI 0x2
209 #define DIP_LEN_AVI 13
210
211 #define DIP_TYPE_SPD 0x83
212 #define DIP_VERSION_SPD 0x1
213 #define DIP_LEN_SPD 25
214 #define DIP_SPD_UNKNOWN 0
215 #define DIP_SPD_DSTB 0x1
216 #define DIP_SPD_DVDP 0x2
217 #define DIP_SPD_DVHS 0x3
218 #define DIP_SPD_HDDVR 0x4
219 #define DIP_SPD_DVC 0x5
220 #define DIP_SPD_DSC 0x6
221 #define DIP_SPD_VCD 0x7
222 #define DIP_SPD_GAME 0x8
223 #define DIP_SPD_PC 0x9
224 #define DIP_SPD_BD 0xa
225 #define DIP_SPD_SCD 0xb
226
227 struct dip_infoframe {
228 uint8_t type; /* HB0 */
229 uint8_t ver; /* HB1 */
230 uint8_t len; /* HB2 - body len, not including checksum */
231 uint8_t ecc; /* Header ECC */
232 uint8_t checksum; /* PB0 */
233 union {
234 struct {
235 /* PB1 - Y 6:5, A 4:4, B 3:2, S 1:0 */
236 uint8_t Y_A_B_S;
237 /* PB2 - C 7:6, M 5:4, R 3:0 */
238 uint8_t C_M_R;
239 /* PB3 - ITC 7:7, EC 6:4, Q 3:2, SC 1:0 */
240 uint8_t ITC_EC_Q_SC;
241 /* PB4 - VIC 6:0 */
242 uint8_t VIC;
243 /* PB5 - PR 3:0 */
244 uint8_t PR;
245 /* PB6 to PB13 */
246 uint16_t top_bar_end;
247 uint16_t bottom_bar_start;
248 uint16_t left_bar_end;
249 uint16_t right_bar_start;
250 } __attribute__ ((packed)) avi;
251 struct {
252 uint8_t vn[8];
253 uint8_t pd[16];
254 uint8_t sdi;
255 } __attribute__ ((packed)) spd;
256 uint8_t payload[27];
257 } __attribute__ ((packed)) body;
258 } __attribute__((packed));
259
260 static inline struct drm_crtc *
intel_get_crtc_for_pipe(struct drm_device * dev,int pipe)261 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
262 {
263 struct drm_i915_private *dev_priv = dev->dev_private;
264 return dev_priv->pipe_to_crtc_mapping[pipe];
265 }
266
267 static inline struct drm_crtc *
intel_get_crtc_for_plane(struct drm_device * dev,int plane)268 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
269 {
270 struct drm_i915_private *dev_priv = dev->dev_private;
271 return dev_priv->plane_to_crtc_mapping[plane];
272 }
273
274 struct intel_unpin_work {
275 struct work_struct work;
276 struct drm_device *dev;
277 struct drm_i915_gem_object *old_fb_obj;
278 struct drm_i915_gem_object *pending_flip_obj;
279 struct drm_pending_vblank_event *event;
280 atomic_t pending;
281 #define INTEL_FLIP_INACTIVE 0
282 #define INTEL_FLIP_PENDING 1
283 #define INTEL_FLIP_COMPLETE 2
284 bool enable_stall_check;
285 };
286
287 struct intel_fbc_work {
288 struct delayed_work work;
289 struct drm_crtc *crtc;
290 struct drm_framebuffer *fb;
291 int interval;
292 };
293
294 int intel_connector_update_modes(struct drm_connector *connector,
295 struct edid *edid);
296 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
297 extern bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus);
298
299 extern void intel_attach_force_audio_property(struct drm_connector *connector);
300 extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
301
302 extern void intel_crt_init(struct drm_device *dev);
303 extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
304 void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
305 extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
306 extern void intel_dvo_init(struct drm_device *dev);
307 extern void intel_tv_init(struct drm_device *dev);
308 extern void intel_mark_busy(struct drm_device *dev,
309 struct drm_i915_gem_object *obj);
310 extern bool intel_lvds_init(struct drm_device *dev);
311 extern void intel_dp_init(struct drm_device *dev, int dp_reg);
312 void
313 intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
314 struct drm_display_mode *adjusted_mode);
315 extern bool intel_dpd_is_edp(struct drm_device *dev);
316 extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
317 extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
318 extern int intel_plane_init(struct drm_device *dev, enum pipe pipe);
319
320 /* intel_panel.c */
321 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
322 struct drm_display_mode *adjusted_mode);
323 extern void intel_pch_panel_fitting(struct drm_device *dev,
324 int fitting_mode,
325 struct drm_display_mode *mode,
326 struct drm_display_mode *adjusted_mode);
327 extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
328 extern u32 intel_panel_get_backlight(struct drm_device *dev);
329 extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
330 extern int intel_panel_setup_backlight(struct drm_device *dev);
331 extern void intel_panel_enable_backlight(struct drm_device *dev);
332 extern void intel_panel_disable_backlight(struct drm_device *dev);
333 extern void intel_panel_destroy_backlight(struct drm_device *dev);
334 extern enum drm_connector_status intel_panel_detect(struct drm_device *dev);
335
336 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
337 extern void intel_encoder_prepare(struct drm_encoder *encoder);
338 extern void intel_encoder_commit(struct drm_encoder *encoder);
339 extern void intel_encoder_destroy(struct drm_encoder *encoder);
340
intel_attached_encoder(struct drm_connector * connector)341 static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector)
342 {
343 return to_intel_connector(connector)->encoder;
344 }
345
346 extern void intel_connector_attach_encoder(struct intel_connector *connector,
347 struct intel_encoder *encoder);
348 extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
349
350 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
351 struct drm_crtc *crtc);
352 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
353 struct drm_file *file_priv);
354 extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
355 extern void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
356
357 struct intel_load_detect_pipe {
358 struct drm_framebuffer *release_fb;
359 bool load_detect_temp;
360 int dpms_mode;
361 };
362 extern bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
363 struct drm_connector *connector,
364 struct drm_display_mode *mode,
365 struct intel_load_detect_pipe *old);
366 extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
367 struct drm_connector *connector,
368 struct intel_load_detect_pipe *old);
369
370 extern void intelfb_restore(void);
371 extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
372 u16 blue, int regno);
373 extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
374 u16 *blue, int regno);
375 extern void intel_enable_clock_gating(struct drm_device *dev);
376 extern void ironlake_enable_drps(struct drm_device *dev);
377 extern void ironlake_disable_drps(struct drm_device *dev);
378 extern void gen6_enable_rps(struct drm_i915_private *dev_priv);
379 extern void gen6_update_ring_freq(struct drm_i915_private *dev_priv);
380 extern void gen6_disable_rps(struct drm_device *dev);
381 extern void intel_init_emon(struct drm_device *dev);
382
383 extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
384 struct drm_i915_gem_object *obj,
385 struct intel_ring_buffer *pipelined);
386 extern void intel_unpin_fb_obj(struct drm_i915_gem_object *obj);
387
388 extern int intel_framebuffer_init(struct drm_device *dev,
389 struct intel_framebuffer *ifb,
390 struct drm_mode_fb_cmd2 *mode_cmd,
391 struct drm_i915_gem_object *obj);
392 extern int intel_fbdev_init(struct drm_device *dev);
393 extern void intel_fbdev_fini(struct drm_device *dev);
394 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
395 extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
396 extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
397 extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
398
399 extern void intel_setup_overlay(struct drm_device *dev);
400 extern void intel_cleanup_overlay(struct drm_device *dev);
401 extern int intel_overlay_switch_off(struct intel_overlay *overlay);
402 extern int intel_overlay_put_image(struct drm_device *dev, void *data,
403 struct drm_file *file_priv);
404 extern int intel_overlay_attrs(struct drm_device *dev, void *data,
405 struct drm_file *file_priv);
406
407 extern void intel_fb_output_poll_changed(struct drm_device *dev);
408 extern void intel_fb_restore_mode(struct drm_device *dev);
409
410 extern void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
411 bool state);
412 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
413 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
414
415 extern void intel_init_clock_gating(struct drm_device *dev);
416 extern void intel_write_eld(struct drm_encoder *encoder,
417 struct drm_display_mode *mode);
418 extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
419
420 /* For use by IVB LP watermark workaround in intel_sprite.c */
421 extern void sandybridge_update_wm(struct drm_device *dev);
422 extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
423 uint32_t sprite_width,
424 int pixel_size);
425
426 extern int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
427 struct drm_file *file_priv);
428 extern int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
429 struct drm_file *file_priv);
430
431 #endif /* __INTEL_DRV_H__ */
432