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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
[mirror_ubuntu-jammy-kernel.git] / drivers / staging / msm / ebi2_l2f.c
CommitLineData
9d200153
SM		 1/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15 * 02110-1301, USA.
16 */
17
18#include "msm_fb.h"
19
20#include <linux/memory.h>
21#include <linux/kernel.h>
22#include <linux/sched.h>
23#include <linux/time.h>
24#include <linux/init.h>
25#include <linux/interrupt.h>
26#include "linux/proc_fs.h"
27
28#include <linux/delay.h>
29
30#include <mach/hardware.h>
31#include <linux/io.h>
32
33#include <asm/system.h>
34#include <asm/mach-types.h>
35
36/* The following are for MSM5100 on Gator
37*/
38#ifdef FEATURE_PM1000
39#include "pm1000.h"
40#endif /* FEATURE_PM1000 */
41/* The following are for MSM6050 on Bambi
42*/
43#ifdef FEATURE_PMIC_LCDKBD_LED_DRIVER
44#include "pm.h"
45#endif /* FEATURE_PMIC_LCDKBD_LED_DRIVER */
46
47#ifdef DISP_DEVICE_18BPP
48#undef DISP_DEVICE_18BPP
49#define DISP_DEVICE_16BPP
50#endif
51
52#define QCIF_WIDTH 176
53#define QCIF_HEIGHT 220
54
55static void *DISP_CMD_PORT;
56static void *DISP_DATA_PORT;
57
58#define DISP_CMD_DISON 0xaf
59#define DISP_CMD_DISOFF 0xae
60#define DISP_CMD_DISNOR 0xa6
61#define DISP_CMD_DISINV 0xa7
62#define DISP_CMD_DISCTL 0xca
63#define DISP_CMD_GCP64 0xcb
64#define DISP_CMD_GCP16 0xcc
65#define DISP_CMD_GSSET 0xcd
66#define DISP_GS_2 0x02
67#define DISP_GS_16 0x01
68#define DISP_GS_64 0x00
69#define DISP_CMD_SLPIN 0x95
70#define DISP_CMD_SLPOUT 0x94
71#define DISP_CMD_SD_PSET 0x75
72#define DISP_CMD_MD_PSET 0x76
73#define DISP_CMD_SD_CSET 0x15
74#define DISP_CMD_MD_CSET 0x16
75#define DISP_CMD_DATCTL 0xbc
76#define DISP_DATCTL_666 0x08
77#define DISP_DATCTL_565 0x28
78#define DISP_DATCTL_444 0x38
79#define DISP_CMD_RAMWR 0x5c
80#define DISP_CMD_RAMRD 0x5d
81#define DISP_CMD_PTLIN 0xa8
82#define DISP_CMD_PTLOUT 0xa9
83#define DISP_CMD_ASCSET 0xaa
84#define DISP_CMD_SCSTART 0xab
85#define DISP_CMD_VOLCTL 0xc6
86#define DISP_VOLCTL_TONE 0x80
87#define DISP_CMD_NOp 0x25
88#define DISP_CMD_OSSEL 0xd0
89#define DISP_CMD_3500KSET 0xd1
90#define DISP_CMD_3500KEND 0xd2
91#define DISP_CMD_14MSET 0xd3
92#define DISP_CMD_14MEND 0xd4
93
94#define DISP_CMD_OUT(cmd) outpw(DISP_CMD_PORT, cmd);
95
96#define DISP_DATA_OUT(data) outpw(DISP_DATA_PORT, data);
97
98#define DISP_DATA_IN() inpw(DISP_DATA_PORT);
99
100/* Epson device column number starts at 2
101*/
102#define DISP_SET_RECT(ulhc_row, lrhc_row, ulhc_col, lrhc_col) \
103 DISP_CMD_OUT(DISP_CMD_SD_PSET) \
104 DISP_DATA_OUT((ulhc_row) & 0xFF) \
105 DISP_DATA_OUT((ulhc_row) >> 8) \
106 DISP_DATA_OUT((lrhc_row) & 0xFF) \
107 DISP_DATA_OUT((lrhc_row) >> 8) \
108 DISP_CMD_OUT(DISP_CMD_SD_CSET) \
109 DISP_DATA_OUT(((ulhc_col)+2) & 0xFF) \
110 DISP_DATA_OUT(((ulhc_col)+2) >> 8) \
111 DISP_DATA_OUT(((lrhc_col)+2) & 0xFF) \
112 DISP_DATA_OUT(((lrhc_col)+2) >> 8)
113
114#define DISP_MIN_CONTRAST 0
115#define DISP_MAX_CONTRAST 127
116#define DISP_DEFAULT_CONTRAST 80
117
118#define DISP_MIN_BACKLIGHT 0
119#define DISP_MAX_BACKLIGHT 15
120#define DISP_DEFAULT_BACKLIGHT 2
121
122#define WAIT_SEC(sec) mdelay((sec)/1000)
123
124static word disp_area_start_row;
125static word disp_area_end_row;
126static byte disp_contrast = DISP_DEFAULT_CONTRAST;
127static boolean disp_powered_up;
128static boolean disp_initialized = FALSE;
129/* For some reason the contrast set at init time is not good. Need to do
130 * it again
131 */
132static boolean display_on = FALSE;
133static void epsonQcif_disp_init(struct platform_device *pdev);
134static void epsonQcif_disp_set_contrast(word contrast);
135static void epsonQcif_disp_set_display_area(word start_row, word end_row);
136static int epsonQcif_disp_off(struct platform_device *pdev);
137static int epsonQcif_disp_on(struct platform_device *pdev);
138static void epsonQcif_disp_set_rect(int x, int y, int xres, int yres);
139
140volatile word databack;
141static void epsonQcif_disp_init(struct platform_device *pdev)
142{
143 struct msm_fb_data_type *mfd;
144
145 int i;
146
147 if (disp_initialized)
148 return;
149
150 mfd = platform_get_drvdata(pdev);
151
152 DISP_CMD_PORT = mfd->cmd_port;
153 DISP_DATA_PORT = mfd->data_port;
154
155 /* Sleep in */
156 DISP_CMD_OUT(DISP_CMD_SLPIN);
157
158 /* Display off */
159 DISP_CMD_OUT(DISP_CMD_DISOFF);
160
161 /* Display normal */
162 DISP_CMD_OUT(DISP_CMD_DISNOR);
163
164 /* Set data mode */
165 DISP_CMD_OUT(DISP_CMD_DATCTL);
166 DISP_DATA_OUT(DISP_DATCTL_565);
167
168 /* Set display timing */
169 DISP_CMD_OUT(DISP_CMD_DISCTL);
170 DISP_DATA_OUT(0x1c); /* p1 */
171 DISP_DATA_OUT(0x02); /* p1 */
172 DISP_DATA_OUT(0x82); /* p2 */
173 DISP_DATA_OUT(0x00); /* p3 */
174 DISP_DATA_OUT(0x00); /* p4 */
175 DISP_DATA_OUT(0xe0); /* p5 */
176 DISP_DATA_OUT(0x00); /* p5 */
177 DISP_DATA_OUT(0xdc); /* p6 */
178 DISP_DATA_OUT(0x00); /* p6 */
179 DISP_DATA_OUT(0x02); /* p7 */
180 DISP_DATA_OUT(0x00); /* p8 */
181
182 /* Set 64 gray scale level */
183 DISP_CMD_OUT(DISP_CMD_GCP64);
184 DISP_DATA_OUT(0x08); /* p01 */
185 DISP_DATA_OUT(0x00);
186 DISP_DATA_OUT(0x2a); /* p02 */
187 DISP_DATA_OUT(0x00);
188 DISP_DATA_OUT(0x4e); /* p03 */
189 DISP_DATA_OUT(0x00);
190 DISP_DATA_OUT(0x6b); /* p04 */
191 DISP_DATA_OUT(0x00);
192 DISP_DATA_OUT(0x88); /* p05 */
193 DISP_DATA_OUT(0x00);
194 DISP_DATA_OUT(0xa3); /* p06 */
195 DISP_DATA_OUT(0x00);
196 DISP_DATA_OUT(0xba); /* p07 */
197 DISP_DATA_OUT(0x00);
198 DISP_DATA_OUT(0xd1); /* p08 */
199 DISP_DATA_OUT(0x00);
200 DISP_DATA_OUT(0xe5); /* p09 */
201 DISP_DATA_OUT(0x00);
202 DISP_DATA_OUT(0xf3); /* p10 */
203 DISP_DATA_OUT(0x00);
204 DISP_DATA_OUT(0x03); /* p11 */
205 DISP_DATA_OUT(0x01);
206 DISP_DATA_OUT(0x13); /* p12 */
207 DISP_DATA_OUT(0x01);
208 DISP_DATA_OUT(0x22); /* p13 */
209 DISP_DATA_OUT(0x01);
210 DISP_DATA_OUT(0x2f); /* p14 */
211 DISP_DATA_OUT(0x01);
212 DISP_DATA_OUT(0x3b); /* p15 */
213 DISP_DATA_OUT(0x01);
214 DISP_DATA_OUT(0x46); /* p16 */
215 DISP_DATA_OUT(0x01);
216 DISP_DATA_OUT(0x51); /* p17 */
217 DISP_DATA_OUT(0x01);
218 DISP_DATA_OUT(0x5b); /* p18 */
219 DISP_DATA_OUT(0x01);
220 DISP_DATA_OUT(0x64); /* p19 */
221 DISP_DATA_OUT(0x01);
222 DISP_DATA_OUT(0x6c); /* p20 */
223 DISP_DATA_OUT(0x01);
224 DISP_DATA_OUT(0x74); /* p21 */
225 DISP_DATA_OUT(0x01);
226 DISP_DATA_OUT(0x7c); /* p22 */
227 DISP_DATA_OUT(0x01);
228 DISP_DATA_OUT(0x83); /* p23 */
229 DISP_DATA_OUT(0x01);
230 DISP_DATA_OUT(0x8a); /* p24 */
231 DISP_DATA_OUT(0x01);
232 DISP_DATA_OUT(0x91); /* p25 */
233 DISP_DATA_OUT(0x01);
234 DISP_DATA_OUT(0x98); /* p26 */
235 DISP_DATA_OUT(0x01);
236 DISP_DATA_OUT(0x9f); /* p27 */
237 DISP_DATA_OUT(0x01);
238 DISP_DATA_OUT(0xa6); /* p28 */
239 DISP_DATA_OUT(0x01);
240 DISP_DATA_OUT(0xac); /* p29 */
241 DISP_DATA_OUT(0x01);
242 DISP_DATA_OUT(0xb2); /* p30 */
243 DISP_DATA_OUT(0x01);
244 DISP_DATA_OUT(0xb7); /* p31 */
245 DISP_DATA_OUT(0x01);
246 DISP_DATA_OUT(0xbc); /* p32 */
247 DISP_DATA_OUT(0x01);
248 DISP_DATA_OUT(0xc1); /* p33 */
249 DISP_DATA_OUT(0x01);
250 DISP_DATA_OUT(0xc6); /* p34 */
251 DISP_DATA_OUT(0x01);
252 DISP_DATA_OUT(0xcb); /* p35 */
253 DISP_DATA_OUT(0x01);
254 DISP_DATA_OUT(0xd0); /* p36 */
255 DISP_DATA_OUT(0x01);
256 DISP_DATA_OUT(0xd4); /* p37 */
257 DISP_DATA_OUT(0x01);
258 DISP_DATA_OUT(0xd8); /* p38 */
259 DISP_DATA_OUT(0x01);
260 DISP_DATA_OUT(0xdc); /* p39 */
261 DISP_DATA_OUT(0x01);
262 DISP_DATA_OUT(0xe0); /* p40 */
263 DISP_DATA_OUT(0x01);
264 DISP_DATA_OUT(0xe4); /* p41 */
265 DISP_DATA_OUT(0x01);
266 DISP_DATA_OUT(0xe8); /* p42 */
267 DISP_DATA_OUT(0x01);
268 DISP_DATA_OUT(0xec); /* p43 */
269 DISP_DATA_OUT(0x01);
270 DISP_DATA_OUT(0xf0); /* p44 */
271 DISP_DATA_OUT(0x01);
272 DISP_DATA_OUT(0xf4); /* p45 */
273 DISP_DATA_OUT(0x01);
274 DISP_DATA_OUT(0xf8); /* p46 */
275 DISP_DATA_OUT(0x01);
276 DISP_DATA_OUT(0xfb); /* p47 */
277 DISP_DATA_OUT(0x01);
278 DISP_DATA_OUT(0xfe); /* p48 */
279 DISP_DATA_OUT(0x01);
280 DISP_DATA_OUT(0x01); /* p49 */
281 DISP_DATA_OUT(0x02);
282 DISP_DATA_OUT(0x03); /* p50 */
283 DISP_DATA_OUT(0x02);
284 DISP_DATA_OUT(0x05); /* p51 */
285 DISP_DATA_OUT(0x02);
286 DISP_DATA_OUT(0x07); /* p52 */
287 DISP_DATA_OUT(0x02);
288 DISP_DATA_OUT(0x09); /* p53 */
289 DISP_DATA_OUT(0x02);
290 DISP_DATA_OUT(0x0b); /* p54 */
291 DISP_DATA_OUT(0x02);
292 DISP_DATA_OUT(0x0d); /* p55 */
293 DISP_DATA_OUT(0x02);
294 DISP_DATA_OUT(0x0f); /* p56 */
295 DISP_DATA_OUT(0x02);
296 DISP_DATA_OUT(0x11); /* p57 */
297 DISP_DATA_OUT(0x02);
298 DISP_DATA_OUT(0x13); /* p58 */
299 DISP_DATA_OUT(0x02);
300 DISP_DATA_OUT(0x15); /* p59 */
301 DISP_DATA_OUT(0x02);
302 DISP_DATA_OUT(0x17); /* p60 */
303 DISP_DATA_OUT(0x02);
304 DISP_DATA_OUT(0x19); /* p61 */
305 DISP_DATA_OUT(0x02);
306 DISP_DATA_OUT(0x1b); /* p62 */
307 DISP_DATA_OUT(0x02);
308 DISP_DATA_OUT(0x1c); /* p63 */
309 DISP_DATA_OUT(0x02);
310
311 /* Set 16 gray scale level */
312 DISP_CMD_OUT(DISP_CMD_GCP16);
313 DISP_DATA_OUT(0x1a); /* p01 */
314 DISP_DATA_OUT(0x32); /* p02 */
315 DISP_DATA_OUT(0x42); /* p03 */
316 DISP_DATA_OUT(0x4c); /* p04 */
317 DISP_DATA_OUT(0x58); /* p05 */
318 DISP_DATA_OUT(0x5f); /* p06 */
319 DISP_DATA_OUT(0x66); /* p07 */
320 DISP_DATA_OUT(0x6b); /* p08 */
321 DISP_DATA_OUT(0x70); /* p09 */
322 DISP_DATA_OUT(0x74); /* p10 */
323 DISP_DATA_OUT(0x78); /* p11 */
324 DISP_DATA_OUT(0x7b); /* p12 */
325 DISP_DATA_OUT(0x7e); /* p13 */
326 DISP_DATA_OUT(0x80); /* p14 */
327 DISP_DATA_OUT(0x82); /* p15 */
328
329 /* Set DSP column */
330 DISP_CMD_OUT(DISP_CMD_MD_CSET);
331 DISP_DATA_OUT(0xff);
332 DISP_DATA_OUT(0x03);
333 DISP_DATA_OUT(0xff);
334 DISP_DATA_OUT(0x03);
335
336 /* Set DSP page */
337 DISP_CMD_OUT(DISP_CMD_MD_PSET);
338 DISP_DATA_OUT(0xff);
339 DISP_DATA_OUT(0x01);
340 DISP_DATA_OUT(0xff);
341 DISP_DATA_OUT(0x01);
342
343 /* Set ARM column */
344 DISP_CMD_OUT(DISP_CMD_SD_CSET);
345 DISP_DATA_OUT(0x02);
346 DISP_DATA_OUT(0x00);
347 DISP_DATA_OUT((QCIF_WIDTH + 1) & 0xFF);
348 DISP_DATA_OUT((QCIF_WIDTH + 1) >> 8);
349
350 /* Set ARM page */
351 DISP_CMD_OUT(DISP_CMD_SD_PSET);
352 DISP_DATA_OUT(0x00);
353 DISP_DATA_OUT(0x00);
354 DISP_DATA_OUT((QCIF_HEIGHT - 1) & 0xFF);
355 DISP_DATA_OUT((QCIF_HEIGHT - 1) >> 8);
356
357 /* Set 64 gray scales */
358 DISP_CMD_OUT(DISP_CMD_GSSET);
359 DISP_DATA_OUT(DISP_GS_64);
360
361 DISP_CMD_OUT(DISP_CMD_OSSEL);
362 DISP_DATA_OUT(0);
363
364 /* Sleep out */
365 DISP_CMD_OUT(DISP_CMD_SLPOUT);
366
367 WAIT_SEC(40000);
368
369 /* Initialize power IC */
370 DISP_CMD_OUT(DISP_CMD_VOLCTL);
371 DISP_DATA_OUT(DISP_VOLCTL_TONE);
372
373 WAIT_SEC(40000);
374
375 /* Set electronic volume, d'xx */
376 DISP_CMD_OUT(DISP_CMD_VOLCTL);
377 DISP_DATA_OUT(DISP_DEFAULT_CONTRAST); /* value from 0 to 127 */
378
379 /* Initialize display data */
380 DISP_SET_RECT(0, (QCIF_HEIGHT - 1), 0, (QCIF_WIDTH - 1));
381 DISP_CMD_OUT(DISP_CMD_RAMWR);
382 for (i = 0; i < QCIF_HEIGHT * QCIF_WIDTH; i++)
383 DISP_DATA_OUT(0xffff);
384
385 DISP_CMD_OUT(DISP_CMD_RAMRD);
386 databack = DISP_DATA_IN();
387 databack = DISP_DATA_IN();
388 databack = DISP_DATA_IN();
389 databack = DISP_DATA_IN();
390
391 WAIT_SEC(80000);
392
393 DISP_CMD_OUT(DISP_CMD_DISON);
394
395 disp_area_start_row = 0;
396 disp_area_end_row = QCIF_HEIGHT - 1;
397 disp_powered_up = TRUE;
398 disp_initialized = TRUE;
399 epsonQcif_disp_set_display_area(0, QCIF_HEIGHT - 1);
400 display_on = TRUE;
401}
402
403static void epsonQcif_disp_set_rect(int x, int y, int xres, int yres)
404{
405 if (!disp_initialized)
406 return;
407
408 DISP_SET_RECT(y, y + yres - 1, x, x + xres - 1);
409 DISP_CMD_OUT(DISP_CMD_RAMWR);
410}
411
412static void epsonQcif_disp_set_display_area(word start_row, word end_row)
413{
414 if (!disp_initialized)
415 return;
416
417 if ((start_row == disp_area_start_row)
418 && (end_row == disp_area_end_row))
419 return;
420 disp_area_start_row = start_row;
421 disp_area_end_row = end_row;
422
423 /* Range checking
424 */
425 if (end_row >= QCIF_HEIGHT)
426 end_row = QCIF_HEIGHT - 1;
427 if (start_row > end_row)
428 start_row = end_row;
429
430 /* When display is not the full screen, gray scale is set to
431 ** 2; otherwise it is set to 64.
432 */
433 if ((start_row == 0) && (end_row == (QCIF_HEIGHT - 1))) {
434 /* The whole screen */
435 DISP_CMD_OUT(DISP_CMD_PTLOUT);
436 WAIT_SEC(10000);
437 DISP_CMD_OUT(DISP_CMD_DISOFF);
438 WAIT_SEC(100000);
439 DISP_CMD_OUT(DISP_CMD_GSSET);
440 DISP_DATA_OUT(DISP_GS_64);
441 WAIT_SEC(100000);
442 DISP_CMD_OUT(DISP_CMD_DISON);
443 } else {
444 /* partial screen */
445 DISP_CMD_OUT(DISP_CMD_PTLIN);
446 DISP_DATA_OUT(start_row);
447 DISP_DATA_OUT(start_row >> 8);
448 DISP_DATA_OUT(end_row);
449 DISP_DATA_OUT(end_row >> 8);
450 DISP_CMD_OUT(DISP_CMD_GSSET);
451 DISP_DATA_OUT(DISP_GS_2);
452 }
453}
454
455static int epsonQcif_disp_off(struct platform_device *pdev)
456{
457 if (!disp_initialized)
458 epsonQcif_disp_init(pdev);
459
460 if (display_on) {
461 DISP_CMD_OUT(DISP_CMD_DISOFF);
462 DISP_CMD_OUT(DISP_CMD_SLPIN);
463 display_on = FALSE;
464 }
465
466 return 0;
467}
468
469static int epsonQcif_disp_on(struct platform_device *pdev)
470{
471 if (!disp_initialized)
472 epsonQcif_disp_init(pdev);
473
474 if (!display_on) {
475 DISP_CMD_OUT(DISP_CMD_SLPOUT);
476 WAIT_SEC(40000);
477 DISP_CMD_OUT(DISP_CMD_DISON);
478 epsonQcif_disp_set_contrast(disp_contrast);
479 display_on = TRUE;
480 }
481
482 return 0;
483}
484
485static void epsonQcif_disp_set_contrast(word contrast)
486{
487 if (!disp_initialized)
488 return;
489
490 /* Initialize power IC, d'24 */
491 DISP_CMD_OUT(DISP_CMD_VOLCTL);
492 DISP_DATA_OUT(DISP_VOLCTL_TONE);
493
494 WAIT_SEC(40000);
495
496 /* Set electronic volume, d'xx */
497 DISP_CMD_OUT(DISP_CMD_VOLCTL);
498 if (contrast > 127)
499 contrast = 127;
500 DISP_DATA_OUT(contrast); /* value from 0 to 127 */
501 disp_contrast = (byte) contrast;
502} /* End disp_set_contrast */
503
504static void epsonQcif_disp_clear_screen_area(
505 word start_row, word end_row, word start_column, word end_column) {
506 int32 i;
507
508 /* Clear the display screen */
509 DISP_SET_RECT(start_row, end_row, start_column, end_column);
510 DISP_CMD_OUT(DISP_CMD_RAMWR);
511 i = (end_row - start_row + 1) * (end_column - start_column + 1);
512 for (; i > 0; i--)
513 DISP_DATA_OUT(0xffff);
514}
515
516static int __init epsonQcif_probe(struct platform_device *pdev)
517{
518 msm_fb_add_device(pdev);
519
520 return 0;
521}
522
523static struct platform_driver this_driver = {
524 .probe = epsonQcif_probe,
525 .driver = {
526 .name = "ebi2_epson_qcif",
527 },
528};
529
530static struct msm_fb_panel_data epsonQcif_panel_data = {
531 .on = epsonQcif_disp_on,
532 .off = epsonQcif_disp_off,
533 .set_rect = epsonQcif_disp_set_rect,
534};
535
536static struct platform_device this_device = {
537 .name = "ebi2_epson_qcif",
538 .id = 0,
539 .dev = {
540 .platform_data = &epsonQcif_panel_data,
541 }
542};
543
544static int __init epsonQcif_init(void)
545{
546 int ret;
547 struct msm_panel_info *pinfo;
548
549 ret = platform_driver_register(&this_driver);
550 if (!ret) {
551 pinfo = &epsonQcif_panel_data.panel_info;
552 pinfo->xres = QCIF_WIDTH;
553 pinfo->yres = QCIF_HEIGHT;
554 pinfo->type = EBI2_PANEL;
555 pinfo->pdest = DISPLAY_2;
556 pinfo->wait_cycle = 0x808000;
557 pinfo->bpp = 16;
558 pinfo->fb_num = 2;
559 pinfo->lcd.vsync_enable = FALSE;
560
561 ret = platform_device_register(&this_device);
562 if (ret)
563 platform_driver_unregister(&this_driver);
564 }
565
566 return ret;
567}
568
569module_init(epsonQcif_init);
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