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
109 static inline void
intel_mode_set_pixel_multiplier(struct drm_display_mode * mode,int multiplier)110 intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
111 int multiplier)
112 {
113 mode->clock *= multiplier;
114 mode->private_flags |= multiplier;
115 }
116
117 static inline int
intel_mode_get_pixel_multiplier(const struct drm_display_mode * mode)118 intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
119 {
120 return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK) >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
121 }
122
123 struct intel_framebuffer {
124 struct drm_framebuffer base;
125 struct drm_i915_gem_object *obj;
126 };
127
128 struct intel_fbdev {
129 struct drm_fb_helper helper;
130 struct intel_framebuffer ifb;
131 struct list_head fbdev_list;
132 struct drm_display_mode *our_mode;
133 };
134
135 struct intel_encoder {
136 struct drm_encoder base;
137 int type;
138 bool needs_tv_clock;
139 void (*hot_plug)(struct intel_encoder *);
140 int crtc_mask;
141 int clone_mask;
142 };
143
144 struct intel_connector {
145 struct drm_connector base;
146 struct intel_encoder *encoder;
147 };
148
149 struct intel_crtc {
150 struct drm_crtc base;
151 enum pipe pipe;
152 enum plane plane;
153 u8 lut_r[256], lut_g[256], lut_b[256];
154 int dpms_mode;
155 bool active; /* is the crtc on? independent of the dpms mode */
156 bool busy; /* is scanout buffer being updated frequently? */
157 struct timer_list idle_timer;
158 bool lowfreq_avail;
159 struct intel_overlay *overlay;
160 struct intel_unpin_work *unpin_work;
161 int fdi_lanes;
162
163 struct drm_i915_gem_object *cursor_bo;
164 uint32_t cursor_addr;
165 int16_t cursor_x, cursor_y;
166 int16_t cursor_width, cursor_height;
167 bool cursor_visible;
168 unsigned int bpp;
169
170 bool no_pll; /* tertiary pipe for IVB */
171 bool use_pll_a;
172 };
173
174 struct intel_plane {
175 struct drm_plane base;
176 enum pipe pipe;
177 struct drm_i915_gem_object *obj;
178 bool primary_disabled;
179 int max_downscale;
180 u32 lut_r[1024], lut_g[1024], lut_b[1024];
181 void (*update_plane)(struct drm_plane *plane,
182 struct drm_framebuffer *fb,
183 struct drm_i915_gem_object *obj,
184 int crtc_x, int crtc_y,
185 unsigned int crtc_w, unsigned int crtc_h,
186 uint32_t x, uint32_t y,
187 uint32_t src_w, uint32_t src_h);
188 void (*disable_plane)(struct drm_plane *plane);
189 int (*update_colorkey)(struct drm_plane *plane,
190 struct drm_intel_sprite_colorkey *key);
191 void (*get_colorkey)(struct drm_plane *plane,
192 struct drm_intel_sprite_colorkey *key);
193 };
194
195 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
196 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
197 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
198 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
199 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
200
201 #define DIP_HEADER_SIZE 5
202
203 #define DIP_TYPE_AVI 0x82
204 #define DIP_VERSION_AVI 0x2
205 #define DIP_LEN_AVI 13
206
207 #define DIP_TYPE_SPD 0x83
208 #define DIP_VERSION_SPD 0x1
209 #define DIP_LEN_SPD 25
210 #define DIP_SPD_UNKNOWN 0
211 #define DIP_SPD_DSTB 0x1
212 #define DIP_SPD_DVDP 0x2
213 #define DIP_SPD_DVHS 0x3
214 #define DIP_SPD_HDDVR 0x4
215 #define DIP_SPD_DVC 0x5
216 #define DIP_SPD_DSC 0x6
217 #define DIP_SPD_VCD 0x7
218 #define DIP_SPD_GAME 0x8
219 #define DIP_SPD_PC 0x9
220 #define DIP_SPD_BD 0xa
221 #define DIP_SPD_SCD 0xb
222
223 struct dip_infoframe {
224 uint8_t type; /* HB0 */
225 uint8_t ver; /* HB1 */
226 uint8_t len; /* HB2 - body len, not including checksum */
227 uint8_t ecc; /* Header ECC */
228 uint8_t checksum; /* PB0 */
229 union {
230 struct {
231 /* PB1 - Y 6:5, A 4:4, B 3:2, S 1:0 */
232 uint8_t Y_A_B_S;
233 /* PB2 - C 7:6, M 5:4, R 3:0 */
234 uint8_t C_M_R;
235 /* PB3 - ITC 7:7, EC 6:4, Q 3:2, SC 1:0 */
236 uint8_t ITC_EC_Q_SC;
237 /* PB4 - VIC 6:0 */
238 uint8_t VIC;
239 /* PB5 - PR 3:0 */
240 uint8_t PR;
241 /* PB6 to PB13 */
242 uint16_t top_bar_end;
243 uint16_t bottom_bar_start;
244 uint16_t left_bar_end;
245 uint16_t right_bar_start;
246 } avi;
247 struct {
248 uint8_t vn[8];
249 uint8_t pd[16];
250 uint8_t sdi;
251 } spd;
252 uint8_t payload[27];
253 } __attribute__ ((packed)) body;
254 } __attribute__((packed));
255
256 static inline struct drm_crtc *
intel_get_crtc_for_pipe(struct drm_device * dev,int pipe)257 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
258 {
259 struct drm_i915_private *dev_priv = dev->dev_private;
260 return dev_priv->pipe_to_crtc_mapping[pipe];
261 }
262
263 static inline struct drm_crtc *
intel_get_crtc_for_plane(struct drm_device * dev,int plane)264 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
265 {
266 struct drm_i915_private *dev_priv = dev->dev_private;
267 return dev_priv->plane_to_crtc_mapping[plane];
268 }
269
270 struct intel_unpin_work {
271 struct work_struct work;
272 struct drm_device *dev;
273 struct drm_i915_gem_object *old_fb_obj;
274 struct drm_i915_gem_object *pending_flip_obj;
275 struct drm_pending_vblank_event *event;
276 int pending;
277 bool enable_stall_check;
278 };
279
280 struct intel_fbc_work {
281 struct delayed_work work;
282 struct drm_crtc *crtc;
283 struct drm_framebuffer *fb;
284 int interval;
285 };
286
287 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
288 extern bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus);
289
290 extern void intel_attach_force_audio_property(struct drm_connector *connector);
291 extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
292
293 extern void intel_crt_init(struct drm_device *dev);
294 extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
295 void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
296 extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
297 extern void intel_dvo_init(struct drm_device *dev);
298 extern void intel_tv_init(struct drm_device *dev);
299 extern void intel_mark_busy(struct drm_device *dev,
300 struct drm_i915_gem_object *obj);
301 extern bool intel_lvds_init(struct drm_device *dev);
302 extern void intel_dp_init(struct drm_device *dev, int dp_reg);
303 void
304 intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
305 struct drm_display_mode *adjusted_mode);
306 extern bool intel_dpd_is_edp(struct drm_device *dev);
307 extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
308 extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
309 extern int intel_plane_init(struct drm_device *dev, enum pipe pipe);
310
311 /* intel_panel.c */
312 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
313 struct drm_display_mode *adjusted_mode);
314 extern void intel_pch_panel_fitting(struct drm_device *dev,
315 int fitting_mode,
316 struct drm_display_mode *mode,
317 struct drm_display_mode *adjusted_mode);
318 extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
319 extern u32 intel_panel_get_backlight(struct drm_device *dev);
320 extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
321 extern int intel_panel_setup_backlight(struct drm_device *dev);
322 extern void intel_panel_enable_backlight(struct drm_device *dev);
323 extern void intel_panel_disable_backlight(struct drm_device *dev);
324 extern void intel_panel_destroy_backlight(struct drm_device *dev);
325 extern enum drm_connector_status intel_panel_detect(struct drm_device *dev);
326
327 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
328 extern void intel_encoder_prepare(struct drm_encoder *encoder);
329 extern void intel_encoder_commit(struct drm_encoder *encoder);
330 extern void intel_encoder_destroy(struct drm_encoder *encoder);
331
intel_attached_encoder(struct drm_connector * connector)332 static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector)
333 {
334 return to_intel_connector(connector)->encoder;
335 }
336
337 extern void intel_connector_attach_encoder(struct intel_connector *connector,
338 struct intel_encoder *encoder);
339 extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
340
341 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
342 struct drm_crtc *crtc);
343 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
344 struct drm_file *file_priv);
345 extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
346 extern void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
347
348 struct intel_load_detect_pipe {
349 struct drm_framebuffer *release_fb;
350 bool load_detect_temp;
351 int dpms_mode;
352 };
353 extern bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
354 struct drm_connector *connector,
355 struct drm_display_mode *mode,
356 struct intel_load_detect_pipe *old);
357 extern void intel_release_load_detect_pipe(struct intel_encoder *intel_encoder,
358 struct drm_connector *connector,
359 struct intel_load_detect_pipe *old);
360
361 extern void intelfb_restore(void);
362 extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
363 u16 blue, int regno);
364 extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
365 u16 *blue, int regno);
366 extern void intel_enable_clock_gating(struct drm_device *dev);
367 extern void ironlake_enable_drps(struct drm_device *dev);
368 extern void ironlake_disable_drps(struct drm_device *dev);
369 extern void gen6_enable_rps(struct drm_i915_private *dev_priv);
370 extern void gen6_update_ring_freq(struct drm_i915_private *dev_priv);
371 extern void gen6_disable_rps(struct drm_device *dev);
372 extern void intel_init_emon(struct drm_device *dev);
373
374 extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
375 struct drm_i915_gem_object *obj,
376 struct intel_ring_buffer *pipelined);
377
378 extern int intel_framebuffer_init(struct drm_device *dev,
379 struct intel_framebuffer *ifb,
380 struct drm_mode_fb_cmd2 *mode_cmd,
381 struct drm_i915_gem_object *obj);
382 extern int intel_fbdev_init(struct drm_device *dev);
383 extern void intel_fbdev_fini(struct drm_device *dev);
384
385 extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
386 extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
387 extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
388
389 extern void intel_setup_overlay(struct drm_device *dev);
390 extern void intel_cleanup_overlay(struct drm_device *dev);
391 extern int intel_overlay_switch_off(struct intel_overlay *overlay);
392 extern int intel_overlay_put_image(struct drm_device *dev, void *data,
393 struct drm_file *file_priv);
394 extern int intel_overlay_attrs(struct drm_device *dev, void *data,
395 struct drm_file *file_priv);
396
397 extern void intel_fb_output_poll_changed(struct drm_device *dev);
398 extern void intel_fb_restore_mode(struct drm_device *dev);
399
400 extern void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
401 bool state);
402 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
403 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
404
405 extern void intel_init_clock_gating(struct drm_device *dev);
406 extern void intel_write_eld(struct drm_encoder *encoder,
407 struct drm_display_mode *mode);
408 extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
409
410 /* For use by IVB LP watermark workaround in intel_sprite.c */
411 extern void sandybridge_update_wm(struct drm_device *dev);
412 extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
413 uint32_t sprite_width,
414 int pixel_size);
415
416 extern int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
417 struct drm_file *file_priv);
418 extern int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
419 struct drm_file *file_priv);
420
421 #endif /* __INTEL_DRV_H__ */
422