Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
[pandora-kernel.git] / arch / arm / plat-omap / include / plat / display.h
1 /*
2  * linux/include/asm-arm/arch-omap/display.h
3  *
4  * Copyright (C) 2008 Nokia Corporation
5  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License version 2 as published by
9  * the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  * You should have received a copy of the GNU General Public License along with
17  * this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19
20 #ifndef __ASM_ARCH_OMAP_DISPLAY_H
21 #define __ASM_ARCH_OMAP_DISPLAY_H
22
23 #include <linux/list.h>
24 #include <linux/kobject.h>
25 #include <linux/device.h>
26 #include <linux/platform_device.h>
27 #include <asm/atomic.h>
28
29 #define DISPC_IRQ_FRAMEDONE             (1 << 0)
30 #define DISPC_IRQ_VSYNC                 (1 << 1)
31 #define DISPC_IRQ_EVSYNC_EVEN           (1 << 2)
32 #define DISPC_IRQ_EVSYNC_ODD            (1 << 3)
33 #define DISPC_IRQ_ACBIAS_COUNT_STAT     (1 << 4)
34 #define DISPC_IRQ_PROG_LINE_NUM         (1 << 5)
35 #define DISPC_IRQ_GFX_FIFO_UNDERFLOW    (1 << 6)
36 #define DISPC_IRQ_GFX_END_WIN           (1 << 7)
37 #define DISPC_IRQ_PAL_GAMMA_MASK        (1 << 8)
38 #define DISPC_IRQ_OCP_ERR               (1 << 9)
39 #define DISPC_IRQ_VID1_FIFO_UNDERFLOW   (1 << 10)
40 #define DISPC_IRQ_VID1_END_WIN          (1 << 11)
41 #define DISPC_IRQ_VID2_FIFO_UNDERFLOW   (1 << 12)
42 #define DISPC_IRQ_VID2_END_WIN          (1 << 13)
43 #define DISPC_IRQ_SYNC_LOST             (1 << 14)
44 #define DISPC_IRQ_SYNC_LOST_DIGIT       (1 << 15)
45 #define DISPC_IRQ_WAKEUP                (1 << 16)
46 #define DISPC_IRQ_SYNC_LOST2            (1 << 17)
47 #define DISPC_IRQ_VSYNC2                (1 << 18)
48 #define DISPC_IRQ_ACBIAS_COUNT_STAT2    (1 << 21)
49 #define DISPC_IRQ_FRAMEDONE2            (1 << 22)
50
51 struct omap_dss_device;
52 struct omap_overlay_manager;
53
54 enum omap_display_type {
55         OMAP_DISPLAY_TYPE_NONE          = 0,
56         OMAP_DISPLAY_TYPE_DPI           = 1 << 0,
57         OMAP_DISPLAY_TYPE_DBI           = 1 << 1,
58         OMAP_DISPLAY_TYPE_SDI           = 1 << 2,
59         OMAP_DISPLAY_TYPE_DSI           = 1 << 3,
60         OMAP_DISPLAY_TYPE_VENC          = 1 << 4,
61         OMAP_DISPLAY_TYPE_HDMI          = 1 << 5,
62 };
63
64 enum omap_plane {
65         OMAP_DSS_GFX    = 0,
66         OMAP_DSS_VIDEO1 = 1,
67         OMAP_DSS_VIDEO2 = 2
68 };
69
70 enum omap_channel {
71         OMAP_DSS_CHANNEL_LCD    = 0,
72         OMAP_DSS_CHANNEL_DIGIT  = 1,
73         OMAP_DSS_CHANNEL_LCD2   = 2,
74 };
75
76 enum omap_color_mode {
77         OMAP_DSS_COLOR_CLUT1    = 1 << 0,  /* BITMAP 1 */
78         OMAP_DSS_COLOR_CLUT2    = 1 << 1,  /* BITMAP 2 */
79         OMAP_DSS_COLOR_CLUT4    = 1 << 2,  /* BITMAP 4 */
80         OMAP_DSS_COLOR_CLUT8    = 1 << 3,  /* BITMAP 8 */
81         OMAP_DSS_COLOR_RGB12U   = 1 << 4,  /* RGB12, 16-bit container */
82         OMAP_DSS_COLOR_ARGB16   = 1 << 5,  /* ARGB16 */
83         OMAP_DSS_COLOR_RGB16    = 1 << 6,  /* RGB16 */
84         OMAP_DSS_COLOR_RGB24U   = 1 << 7,  /* RGB24, 32-bit container */
85         OMAP_DSS_COLOR_RGB24P   = 1 << 8,  /* RGB24, 24-bit container */
86         OMAP_DSS_COLOR_YUV2     = 1 << 9,  /* YUV2 4:2:2 co-sited */
87         OMAP_DSS_COLOR_UYVY     = 1 << 10, /* UYVY 4:2:2 co-sited */
88         OMAP_DSS_COLOR_ARGB32   = 1 << 11, /* ARGB32 */
89         OMAP_DSS_COLOR_RGBA32   = 1 << 12, /* RGBA32 */
90         OMAP_DSS_COLOR_RGBX32   = 1 << 13, /* RGBx32 */
91 };
92
93 enum omap_lcd_display_type {
94         OMAP_DSS_LCD_DISPLAY_STN,
95         OMAP_DSS_LCD_DISPLAY_TFT,
96 };
97
98 enum omap_dss_load_mode {
99         OMAP_DSS_LOAD_CLUT_AND_FRAME    = 0,
100         OMAP_DSS_LOAD_CLUT_ONLY         = 1,
101         OMAP_DSS_LOAD_FRAME_ONLY        = 2,
102         OMAP_DSS_LOAD_CLUT_ONCE_FRAME   = 3,
103 };
104
105 enum omap_dss_trans_key_type {
106         OMAP_DSS_COLOR_KEY_GFX_DST = 0,
107         OMAP_DSS_COLOR_KEY_VID_SRC = 1,
108 };
109
110 enum omap_rfbi_te_mode {
111         OMAP_DSS_RFBI_TE_MODE_1 = 1,
112         OMAP_DSS_RFBI_TE_MODE_2 = 2,
113 };
114
115 enum omap_panel_config {
116         OMAP_DSS_LCD_IVS                = 1<<0,
117         OMAP_DSS_LCD_IHS                = 1<<1,
118         OMAP_DSS_LCD_IPC                = 1<<2,
119         OMAP_DSS_LCD_IEO                = 1<<3,
120         OMAP_DSS_LCD_RF                 = 1<<4,
121         OMAP_DSS_LCD_ONOFF              = 1<<5,
122
123         OMAP_DSS_LCD_TFT                = 1<<20,
124 };
125
126 enum omap_dss_venc_type {
127         OMAP_DSS_VENC_TYPE_COMPOSITE,
128         OMAP_DSS_VENC_TYPE_SVIDEO,
129 };
130
131 enum omap_display_caps {
132         OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE      = 1 << 0,
133         OMAP_DSS_DISPLAY_CAP_TEAR_ELIM          = 1 << 1,
134 };
135
136 enum omap_dss_update_mode {
137         OMAP_DSS_UPDATE_DISABLED = 0,
138         OMAP_DSS_UPDATE_AUTO,
139         OMAP_DSS_UPDATE_MANUAL,
140 };
141
142 enum omap_dss_display_state {
143         OMAP_DSS_DISPLAY_DISABLED = 0,
144         OMAP_DSS_DISPLAY_ACTIVE,
145         OMAP_DSS_DISPLAY_SUSPENDED,
146 };
147
148 /* XXX perhaps this should be removed */
149 enum omap_dss_overlay_managers {
150         OMAP_DSS_OVL_MGR_LCD,
151         OMAP_DSS_OVL_MGR_TV,
152         OMAP_DSS_OVL_MGR_LCD2,
153 };
154
155 enum omap_dss_rotation_type {
156         OMAP_DSS_ROT_DMA = 0,
157         OMAP_DSS_ROT_VRFB = 1,
158 };
159
160 /* clockwise rotation angle */
161 enum omap_dss_rotation_angle {
162         OMAP_DSS_ROT_0   = 0,
163         OMAP_DSS_ROT_90  = 1,
164         OMAP_DSS_ROT_180 = 2,
165         OMAP_DSS_ROT_270 = 3,
166 };
167
168 enum omap_overlay_caps {
169         OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
170         OMAP_DSS_OVL_CAP_DISPC = 1 << 1,
171 };
172
173 enum omap_overlay_manager_caps {
174         OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0,
175 };
176
177 /* RFBI */
178
179 struct rfbi_timings {
180         int cs_on_time;
181         int cs_off_time;
182         int we_on_time;
183         int we_off_time;
184         int re_on_time;
185         int re_off_time;
186         int we_cycle_time;
187         int re_cycle_time;
188         int cs_pulse_width;
189         int access_time;
190
191         int clk_div;
192
193         u32 tim[5];             /* set by rfbi_convert_timings() */
194
195         int converted;
196 };
197
198 void omap_rfbi_write_command(const void *buf, u32 len);
199 void omap_rfbi_read_data(void *buf, u32 len);
200 void omap_rfbi_write_data(const void *buf, u32 len);
201 void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
202                 u16 x, u16 y,
203                 u16 w, u16 h);
204 int omap_rfbi_enable_te(bool enable, unsigned line);
205 int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
206                              unsigned hs_pulse_time, unsigned vs_pulse_time,
207                              int hs_pol_inv, int vs_pol_inv, int extif_div);
208
209 /* DSI */
210 void dsi_bus_lock(void);
211 void dsi_bus_unlock(void);
212 int dsi_vc_dcs_write(int channel, u8 *data, int len);
213 int dsi_vc_dcs_write_0(int channel, u8 dcs_cmd);
214 int dsi_vc_dcs_write_1(int channel, u8 dcs_cmd, u8 param);
215 int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);
216 int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);
217 int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data);
218 int dsi_vc_dcs_read_2(int channel, u8 dcs_cmd, u8 *data1, u8 *data2);
219 int dsi_vc_set_max_rx_packet_size(int channel, u16 len);
220 int dsi_vc_send_null(int channel);
221 int dsi_vc_send_bta_sync(int channel);
222
223 /* Board specific data */
224 struct omap_dss_board_info {
225         int (*get_last_off_on_transaction_id)(struct device *dev);
226         int num_devices;
227         struct omap_dss_device **devices;
228         struct omap_dss_device *default_device;
229 };
230
231 #if defined(CONFIG_OMAP2_DSS_MODULE) || defined(CONFIG_OMAP2_DSS)
232 /* Init with the board info */
233 extern int omap_display_init(struct omap_dss_board_info *board_data);
234 #else
235 static inline int omap_display_init(struct omap_dss_board_info *board_data)
236 {
237         return 0;
238 }
239 #endif
240
241 struct omap_display_platform_data {
242         struct omap_dss_board_info *board_data;
243         /* TODO: Additional members to be added when PM is considered */
244
245         bool (*opt_clock_available)(const char *clk_role);
246 };
247
248 struct omap_video_timings {
249         /* Unit: pixels */
250         u16 x_res;
251         /* Unit: pixels */
252         u16 y_res;
253         /* Unit: KHz */
254         u32 pixel_clock;
255         /* Unit: pixel clocks */
256         u16 hsw;        /* Horizontal synchronization pulse width */
257         /* Unit: pixel clocks */
258         u16 hfp;        /* Horizontal front porch */
259         /* Unit: pixel clocks */
260         u16 hbp;        /* Horizontal back porch */
261         /* Unit: line clocks */
262         u16 vsw;        /* Vertical synchronization pulse width */
263         /* Unit: line clocks */
264         u16 vfp;        /* Vertical front porch */
265         /* Unit: line clocks */
266         u16 vbp;        /* Vertical back porch */
267 };
268
269 #ifdef CONFIG_OMAP2_DSS_VENC
270 /* Hardcoded timings for tv modes. Venc only uses these to
271  * identify the mode, and does not actually use the configs
272  * itself. However, the configs should be something that
273  * a normal monitor can also show */
274 extern const struct omap_video_timings omap_dss_pal_timings;
275 extern const struct omap_video_timings omap_dss_ntsc_timings;
276 #endif
277
278 struct omap_overlay_info {
279         bool enabled;
280
281         u32 paddr;
282         void __iomem *vaddr;
283         u16 screen_width;
284         u16 width;
285         u16 height;
286         enum omap_color_mode color_mode;
287         u8 rotation;
288         enum omap_dss_rotation_type rotation_type;
289         bool mirror;
290
291         u16 pos_x;
292         u16 pos_y;
293         u16 out_width;  /* if 0, out_width == width */
294         u16 out_height; /* if 0, out_height == height */
295         u8 global_alpha;
296         u8 pre_mult_alpha;
297 };
298
299 struct omap_overlay {
300         struct kobject kobj;
301         struct list_head list;
302
303         /* static fields */
304         const char *name;
305         int id;
306         enum omap_color_mode supported_modes;
307         enum omap_overlay_caps caps;
308
309         /* dynamic fields */
310         struct omap_overlay_manager *manager;
311         struct omap_overlay_info info;
312
313         /* if true, info has been changed, but not applied() yet */
314         bool info_dirty;
315
316         int (*set_manager)(struct omap_overlay *ovl,
317                 struct omap_overlay_manager *mgr);
318         int (*unset_manager)(struct omap_overlay *ovl);
319
320         int (*set_overlay_info)(struct omap_overlay *ovl,
321                         struct omap_overlay_info *info);
322         void (*get_overlay_info)(struct omap_overlay *ovl,
323                         struct omap_overlay_info *info);
324
325         int (*wait_for_go)(struct omap_overlay *ovl);
326 };
327
328 struct omap_overlay_manager_info {
329         u32 default_color;
330
331         enum omap_dss_trans_key_type trans_key_type;
332         u32 trans_key;
333         bool trans_enabled;
334
335         bool alpha_enabled;
336 };
337
338 struct omap_overlay_manager {
339         struct kobject kobj;
340         struct list_head list;
341
342         /* static fields */
343         const char *name;
344         int id;
345         enum omap_overlay_manager_caps caps;
346         int num_overlays;
347         struct omap_overlay **overlays;
348         enum omap_display_type supported_displays;
349
350         /* dynamic fields */
351         struct omap_dss_device *device;
352         struct omap_overlay_manager_info info;
353
354         bool device_changed;
355         /* if true, info has been changed but not applied() yet */
356         bool info_dirty;
357
358         int (*set_device)(struct omap_overlay_manager *mgr,
359                 struct omap_dss_device *dssdev);
360         int (*unset_device)(struct omap_overlay_manager *mgr);
361
362         int (*set_manager_info)(struct omap_overlay_manager *mgr,
363                         struct omap_overlay_manager_info *info);
364         void (*get_manager_info)(struct omap_overlay_manager *mgr,
365                         struct omap_overlay_manager_info *info);
366
367         int (*apply)(struct omap_overlay_manager *mgr);
368         int (*wait_for_go)(struct omap_overlay_manager *mgr);
369         int (*wait_for_vsync)(struct omap_overlay_manager *mgr);
370
371         int (*enable)(struct omap_overlay_manager *mgr);
372         int (*disable)(struct omap_overlay_manager *mgr);
373 };
374
375 struct omap_dss_device {
376         struct device dev;
377
378         enum omap_display_type type;
379
380         enum omap_channel channel;
381
382         union {
383                 struct {
384                         u8 data_lines;
385                 } dpi;
386
387                 struct {
388                         u8 channel;
389                         u8 data_lines;
390                 } rfbi;
391
392                 struct {
393                         u8 datapairs;
394                 } sdi;
395
396                 struct {
397                         u8 clk_lane;
398                         u8 clk_pol;
399                         u8 data1_lane;
400                         u8 data1_pol;
401                         u8 data2_lane;
402                         u8 data2_pol;
403
404                         struct {
405                                 u16 regn;
406                                 u16 regm;
407                                 u16 regm_dispc;
408                                 u16 regm_dsi;
409
410                                 u16 lp_clk_div;
411
412                                 u16 lck_div;
413                                 u16 pck_div;
414                         } div;
415
416                         bool ext_te;
417                         u8 ext_te_gpio;
418                 } dsi;
419
420                 struct {
421                         enum omap_dss_venc_type type;
422                         bool invert_polarity;
423                 } venc;
424         } phy;
425
426         struct {
427                 struct omap_video_timings timings;
428
429                 int acbi;       /* ac-bias pin transitions per interrupt */
430                 /* Unit: line clocks */
431                 int acb;        /* ac-bias pin frequency */
432
433                 enum omap_panel_config config;
434         } panel;
435
436         struct {
437                 u8 pixel_size;
438                 struct rfbi_timings rfbi_timings;
439         } ctrl;
440
441         int reset_gpio;
442
443         int max_backlight_level;
444
445         const char *name;
446
447         /* used to match device to driver */
448         const char *driver_name;
449
450         void *data;
451
452         struct omap_dss_driver *driver;
453
454         /* helper variable for driver suspend/resume */
455         bool activate_after_resume;
456
457         enum omap_display_caps caps;
458
459         struct omap_overlay_manager *manager;
460
461         enum omap_dss_display_state state;
462
463         /* platform specific  */
464         int (*platform_enable)(struct omap_dss_device *dssdev);
465         void (*platform_disable)(struct omap_dss_device *dssdev);
466         int (*set_backlight)(struct omap_dss_device *dssdev, int level);
467         int (*get_backlight)(struct omap_dss_device *dssdev);
468 };
469
470 struct omap_dss_driver {
471         struct device_driver driver;
472
473         int (*probe)(struct omap_dss_device *);
474         void (*remove)(struct omap_dss_device *);
475
476         int (*enable)(struct omap_dss_device *display);
477         void (*disable)(struct omap_dss_device *display);
478         int (*suspend)(struct omap_dss_device *display);
479         int (*resume)(struct omap_dss_device *display);
480         int (*run_test)(struct omap_dss_device *display, int test);
481
482         int (*set_update_mode)(struct omap_dss_device *dssdev,
483                         enum omap_dss_update_mode);
484         enum omap_dss_update_mode (*get_update_mode)(
485                         struct omap_dss_device *dssdev);
486
487         int (*update)(struct omap_dss_device *dssdev,
488                                u16 x, u16 y, u16 w, u16 h);
489         int (*sync)(struct omap_dss_device *dssdev);
490
491         int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
492         int (*get_te)(struct omap_dss_device *dssdev);
493
494         u8 (*get_rotate)(struct omap_dss_device *dssdev);
495         int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);
496
497         bool (*get_mirror)(struct omap_dss_device *dssdev);
498         int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);
499
500         int (*memory_read)(struct omap_dss_device *dssdev,
501                         void *buf, size_t size,
502                         u16 x, u16 y, u16 w, u16 h);
503
504         void (*get_resolution)(struct omap_dss_device *dssdev,
505                         u16 *xres, u16 *yres);
506         int (*get_recommended_bpp)(struct omap_dss_device *dssdev);
507
508         int (*check_timings)(struct omap_dss_device *dssdev,
509                         struct omap_video_timings *timings);
510         void (*set_timings)(struct omap_dss_device *dssdev,
511                         struct omap_video_timings *timings);
512         void (*get_timings)(struct omap_dss_device *dssdev,
513                         struct omap_video_timings *timings);
514
515         int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
516         u32 (*get_wss)(struct omap_dss_device *dssdev);
517 };
518
519 int omap_dss_register_driver(struct omap_dss_driver *);
520 void omap_dss_unregister_driver(struct omap_dss_driver *);
521
522 int omap_dss_register_device(struct omap_dss_device *);
523 void omap_dss_unregister_device(struct omap_dss_device *);
524
525 void omap_dss_get_device(struct omap_dss_device *dssdev);
526 void omap_dss_put_device(struct omap_dss_device *dssdev);
527 #define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL)
528 struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from);
529 struct omap_dss_device *omap_dss_find_device(void *data,
530                 int (*match)(struct omap_dss_device *dssdev, void *data));
531
532 int omap_dss_start_device(struct omap_dss_device *dssdev);
533 void omap_dss_stop_device(struct omap_dss_device *dssdev);
534
535 int omap_dss_get_num_overlay_managers(void);
536 struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
537
538 int omap_dss_get_num_overlays(void);
539 struct omap_overlay *omap_dss_get_overlay(int num);
540
541 void omapdss_default_get_resolution(struct omap_dss_device *dssdev,
542                 u16 *xres, u16 *yres);
543 int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev);
544
545 typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
546 int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
547 int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
548
549 int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
550 int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
551                 unsigned long timeout);
552
553 #define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
554 #define to_dss_device(x) container_of((x), struct omap_dss_device, dev)
555
556 void omapdss_dsi_vc_enable_hs(int channel, bool enable);
557 int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable);
558
559 int omap_dsi_prepare_update(struct omap_dss_device *dssdev,
560                                     u16 *x, u16 *y, u16 *w, u16 *h,
561                                     bool enlarge_update_area);
562 int omap_dsi_update(struct omap_dss_device *dssdev,
563                 int channel,
564                 u16 x, u16 y, u16 w, u16 h,
565                 void (*callback)(int, void *), void *data);
566 int omap_dsi_request_vc(struct omap_dss_device *dssdev, int *channel);
567 int omap_dsi_set_vc_id(struct omap_dss_device *dssdev, int channel, int vc_id);
568 void omap_dsi_release_vc(struct omap_dss_device *dssdev, int channel);
569
570 int omapdss_dsi_display_enable(struct omap_dss_device *dssdev);
571 void omapdss_dsi_display_disable(struct omap_dss_device *dssdev);
572
573 int omapdss_dpi_display_enable(struct omap_dss_device *dssdev);
574 void omapdss_dpi_display_disable(struct omap_dss_device *dssdev);
575 void dpi_set_timings(struct omap_dss_device *dssdev,
576                         struct omap_video_timings *timings);
577 int dpi_check_timings(struct omap_dss_device *dssdev,
578                         struct omap_video_timings *timings);
579
580 int omapdss_sdi_display_enable(struct omap_dss_device *dssdev);
581 void omapdss_sdi_display_disable(struct omap_dss_device *dssdev);
582
583 int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev);
584 void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev);
585 int omap_rfbi_prepare_update(struct omap_dss_device *dssdev,
586                 u16 *x, u16 *y, u16 *w, u16 *h);
587 int omap_rfbi_update(struct omap_dss_device *dssdev,
588                 u16 x, u16 y, u16 w, u16 h,
589                 void (*callback)(void *), void *data);
590
591 #endif