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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#include "mddihost.h"
20#include "mddihosti.h"
21
22#define SHARP_QVGA_PRIM 1
23#define SHARP_128X128_SECD 2
24
25extern uint32 mddi_host_core_version;
26static boolean mddi_debug_prim_wait = FALSE;
27static boolean mddi_sharp_vsync_wake = TRUE;
28static boolean mddi_sharp_monitor_refresh_value = TRUE;
29static boolean mddi_sharp_report_refresh_measurements = FALSE;
30static uint32 mddi_sharp_rows_per_second = 13830;	/* 5200000/376 */
31static uint32 mddi_sharp_rows_per_refresh = 338;
32static uint32 mddi_sharp_usecs_per_refresh = 24440;	/* (376+338)/5200000 */
33static boolean mddi_sharp_debug_60hz_refresh = FALSE;
34
35extern mddi_gpio_info_type mddi_gpio;
36extern boolean mddi_vsync_detect_enabled;
37static msm_fb_vsync_handler_type mddi_sharp_vsync_handler;
38static void *mddi_sharp_vsync_handler_arg;
39static uint16 mddi_sharp_vsync_attempts;
40
41static void mddi_sharp_prim_lcd_init(void);
42static void mddi_sharp_sub_lcd_init(void);
43static void mddi_sharp_lcd_set_backlight(struct msm_fb_data_type *mfd);
44static void mddi_sharp_vsync_set_handler(msm_fb_vsync_handler_type handler,
45					 void *);
46static void mddi_sharp_lcd_vsync_detected(boolean detected);
47static struct msm_panel_common_pdata *mddi_sharp_pdata;
48
49#define REG_SYSCTL    0x0000
50#define REG_INTR    0x0006
51#define REG_CLKCNF    0x000C
52#define REG_CLKDIV1    0x000E
53#define REG_CLKDIV2    0x0010
54
55#define REG_GIOD    0x0040
56#define REG_GIOA    0x0042
57
58#define REG_AGM      0x010A
59#define REG_FLFT    0x0110
60#define REG_FRGT    0x0112
61#define REG_FTOP    0x0114
62#define REG_FBTM    0x0116
63#define REG_FSTRX    0x0118
64#define REG_FSTRY    0x011A
65#define REG_VRAM    0x0202
66#define REG_SSDCTL    0x0330
67#define REG_SSD0    0x0332
68#define REG_PSTCTL1    0x0400
69#define REG_PSTCTL2    0x0402
70#define REG_PTGCTL    0x042A
71#define REG_PTHP    0x042C
72#define REG_PTHB    0x042E
73#define REG_PTHW    0x0430
74#define REG_PTHF    0x0432
75#define REG_PTVP    0x0434
76#define REG_PTVB    0x0436
77#define REG_PTVW    0x0438
78#define REG_PTVF    0x043A
79#define REG_VBLKS    0x0458
80#define REG_VBLKE    0x045A
81#define REG_SUBCTL    0x0700
82#define REG_SUBTCMD    0x0702
83#define REG_SUBTCMDD  0x0704
84#define REG_REVBYTE    0x0A02
85#define REG_REVCNT    0x0A04
86#define REG_REVATTR    0x0A06
87#define REG_REVFMT    0x0A08
88
89#define SHARP_SUB_UNKNOWN 0xffffffff
90#define SHARP_SUB_HYNIX 1
91#define SHARP_SUB_ROHM  2
92
93static uint32 sharp_subpanel_type = SHARP_SUB_UNKNOWN;
94
95static void sub_through_write(int sub_rs, uint32 sub_data)
96{
97	mddi_queue_register_write(REG_SUBTCMDD, sub_data, FALSE, 0);
98
99	/* CS=1,RD=1,WE=1,RS=sub_rs */
100	mddi_queue_register_write(REG_SUBTCMD, 0x000e | sub_rs, FALSE, 0);
101
102	/* CS=0,RD=1,WE=1,RS=sub_rs */
103	mddi_queue_register_write(REG_SUBTCMD, 0x0006 | sub_rs, FALSE, 0);
104
105	/* CS=0,RD=1,WE=0,RS=sub_rs */
106	mddi_queue_register_write(REG_SUBTCMD, 0x0004 | sub_rs, FALSE, 0);
107
108	/* CS=0,RD=1,WE=1,RS=sub_rs */
109	mddi_queue_register_write(REG_SUBTCMD, 0x0006 | sub_rs, FALSE, 0);
110
111	/* CS=1,RD=1,WE=1,RS=sub_rs */
112	mddi_queue_register_write(REG_SUBTCMD, 0x000e | sub_rs, TRUE, 0);
113}
114
115static uint32 sub_through_read(int sub_rs)
116{
117	uint32 sub_data;
118
119	/* CS=1,RD=1,WE=1,RS=sub_rs */
120	mddi_queue_register_write(REG_SUBTCMD, 0x000e | sub_rs, FALSE, 0);
121
122	/* CS=0,RD=1,WE=1,RS=sub_rs */
123	mddi_queue_register_write(REG_SUBTCMD, 0x0006 | sub_rs, FALSE, 0);
124
125	/* CS=0,RD=1,WE=0,RS=sub_rs */
126	mddi_queue_register_write(REG_SUBTCMD, 0x0002 | sub_rs, TRUE, 0);
127
128	mddi_queue_register_read(REG_SUBTCMDD, &sub_data, TRUE, 0);
129
130	/* CS=0,RD=1,WE=1,RS=sub_rs */
131	mddi_queue_register_write(REG_SUBTCMD, 0x0006 | sub_rs, FALSE, 0);
132
133	/* CS=1,RD=1,WE=1,RS=sub_rs */
134	mddi_queue_register_write(REG_SUBTCMD, 0x000e | sub_rs, TRUE, 0);
135
136	return sub_data;
137}
138
139static void serigo(uint32 ssd)
140{
141	uint32 ssdctl;
142
143	mddi_queue_register_read(REG_SSDCTL, &ssdctl, TRUE, 0);
144	ssdctl = ((ssdctl & 0xE7) | 0x02);
145
146	mddi_queue_register_write(REG_SSD0, ssd, FALSE, 0);
147	mddi_queue_register_write(REG_SSDCTL, ssdctl, TRUE, 0);
148
149	do {
150		mddi_queue_register_read(REG_SSDCTL, &ssdctl, TRUE, 0);
151	} while ((ssdctl & 0x0002) != 0);
152
153	if (mddi_debug_prim_wait)
154		mddi_wait(2);
155}
156
157static void mddi_sharp_lcd_powerdown(void)
158{
159	serigo(0x0131);
160	serigo(0x0300);
161	mddi_wait(40);
162	serigo(0x0135);
163	mddi_wait(20);
164	serigo(0x2122);
165	mddi_wait(20);
166	serigo(0x0201);
167	mddi_wait(20);
168	serigo(0x2100);
169	mddi_wait(20);
170	serigo(0x2000);
171	mddi_wait(20);
172
173	mddi_queue_register_write(REG_PSTCTL1, 0x1, TRUE, 0);
174	mddi_wait(100);
175	mddi_queue_register_write(REG_PSTCTL1, 0x0, TRUE, 0);
176	mddi_wait(2);
177	mddi_queue_register_write(REG_SYSCTL, 0x1, TRUE, 0);
178	mddi_wait(2);
179	mddi_queue_register_write(REG_CLKDIV1, 0x3, TRUE, 0);
180	mddi_wait(2);
181	mddi_queue_register_write(REG_SSDCTL, 0x0000, TRUE, 0);	/* SSDRESET */
182	mddi_queue_register_write(REG_SYSCTL, 0x0, TRUE, 0);
183	mddi_wait(2);
184}
185
186static void mddi_sharp_lcd_set_backlight(struct msm_fb_data_type *mfd)
187{
188	uint32 regdata;
189	int32 level;
190	int max = mfd->panel_info.bl_max;
191	int min = mfd->panel_info.bl_min;
192
193	if (mddi_sharp_pdata && mddi_sharp_pdata->backlight_level) {
194		level = mddi_sharp_pdata->backlight_level(mfd->bl_level,
195							  max,
196							  min);
197
198		if (level < 0)
199			return;
200
201		/* use Rodem GPIO(2:0) to give 8 levels of backlight (7-0) */
202		/* Set lower 3 GPIOs as Outputs (set to 0) */
203		mddi_queue_register_read(REG_GIOA, &regdata, TRUE, 0);
204		mddi_queue_register_write(REG_GIOA, regdata & 0xfff8, TRUE, 0);
205
206		/* Set lower 3 GPIOs as level */
207		mddi_queue_register_read(REG_GIOD, &regdata, TRUE, 0);
208		mddi_queue_register_write(REG_GIOD,
209			  (regdata & 0xfff8) | (0x07 & level), TRUE, 0);
210	}
211}
212
213static void mddi_sharp_prim_lcd_init(void)
214{
215	mddi_queue_register_write(REG_SYSCTL, 0x4000, TRUE, 0);
216	mddi_wait(1);
217	mddi_queue_register_write(REG_SYSCTL, 0x0000, TRUE, 0);
218	mddi_wait(5);
219	mddi_queue_register_write(REG_SYSCTL, 0x0001, FALSE, 0);
220	mddi_queue_register_write(REG_CLKDIV1, 0x000b, FALSE, 0);
221
222	/* new reg write below */
223	if (mddi_sharp_debug_60hz_refresh)
224		mddi_queue_register_write(REG_CLKCNF, 0x070d, FALSE, 0);
225	else
226		mddi_queue_register_write(REG_CLKCNF, 0x0708, FALSE, 0);
227
228	mddi_queue_register_write(REG_SYSCTL, 0x0201, FALSE, 0);
229	mddi_queue_register_write(REG_PTGCTL, 0x0010, FALSE, 0);
230	mddi_queue_register_write(REG_PTHP, 4, FALSE, 0);
231	mddi_queue_register_write(REG_PTHB, 40, FALSE, 0);
232	mddi_queue_register_write(REG_PTHW, 240, FALSE, 0);
233	if (mddi_sharp_debug_60hz_refresh)
234		mddi_queue_register_write(REG_PTHF, 12, FALSE, 0);
235	else
236		mddi_queue_register_write(REG_PTHF, 92, FALSE, 0);
237
238	mddi_wait(1);
239
240	mddi_queue_register_write(REG_PTVP, 1, FALSE, 0);
241	mddi_queue_register_write(REG_PTVB, 2, FALSE, 0);
242	mddi_queue_register_write(REG_PTVW, 320, FALSE, 0);
243	mddi_queue_register_write(REG_PTVF, 15, FALSE, 0);
244
245	mddi_wait(1);
246
247	/* vram_color set REG_AGM???? */
248	mddi_queue_register_write(REG_AGM, 0x0000, TRUE, 0);
249
250	mddi_queue_register_write(REG_SSDCTL, 0x0000, FALSE, 0);
251	mddi_queue_register_write(REG_SSDCTL, 0x0001, TRUE, 0);
252	mddi_wait(1);
253	mddi_queue_register_write(REG_PSTCTL1, 0x0001, TRUE, 0);
254	mddi_wait(10);
255
256	serigo(0x0701);
257	/* software reset */
258	mddi_wait(1);
259	/* Wait over 50us */
260
261	serigo(0x0400);
262	/* DCLK~ACHSYNC~ACVSYNC polarity setting */
263	serigo(0x2900);
264	/* EEPROM start read address setting */
265	serigo(0x2606);
266	/* EEPROM start read register setting */
267	mddi_wait(20);
268	/* Wait over 20ms */
269
270	serigo(0x0503);
271	/* Horizontal timing setting */
272	serigo(0x062C);
273	/* Veritical timing setting */
274	serigo(0x2001);
275	/* power initialize setting(VDC2) */
276	mddi_wait(20);
277	/* Wait over 20ms */
278
279	serigo(0x2120);
280	/* Initialize power setting(CPS) */
281	mddi_wait(20);
282	/* Wait over 20ms */
283
284	serigo(0x2130);
285	/* Initialize power setting(CPS) */
286	mddi_wait(20);
287	/* Wait over 20ms */
288
289	serigo(0x2132);
290	/* Initialize power setting(CPS) */
291	mddi_wait(10);
292	/* Wait over 10ms */
293
294	serigo(0x2133);
295	/* Initialize power setting(CPS) */
296	mddi_wait(20);
297	/* Wait over 20ms */
298
299	serigo(0x0200);
300	/* Panel initialize release(INIT) */
301	mddi_wait(1);
302	/* Wait over 1ms */
303
304	serigo(0x0131);
305	/* Panel setting(CPS) */
306	mddi_wait(1);
307	/* Wait over 1ms */
308
309	mddi_queue_register_write(REG_PSTCTL1, 0x0003, TRUE, 0);
310
311	/* if (FFA LCD is upside down) -> serigo(0x0100); */
312	serigo(0x0130);
313
314	/* Black mask release(display ON) */
315	mddi_wait(1);
316	/* Wait over 1ms */
317
318	if (mddi_sharp_vsync_wake) {
319		mddi_queue_register_write(REG_VBLKS, 0x1001, TRUE, 0);
320		mddi_queue_register_write(REG_VBLKE, 0x1002, TRUE, 0);
321	}
322
323	/* Set the MDP pixel data attributes for Primary Display */
324	mddi_host_write_pix_attr_reg(0x00C3);
325	return;
326
327}
328
329void mddi_sharp_sub_lcd_init(void)
330{
331
332	mddi_queue_register_write(REG_SYSCTL, 0x4000, FALSE, 0);
333	mddi_queue_register_write(REG_SYSCTL, 0x0000, TRUE, 0);
334	mddi_wait(100);
335
336	mddi_queue_register_write(REG_SYSCTL, 0x0001, FALSE, 0);
337	mddi_queue_register_write(REG_CLKDIV1, 0x000b, FALSE, 0);
338	mddi_queue_register_write(REG_CLKCNF, 0x0708, FALSE, 0);
339	mddi_queue_register_write(REG_SYSCTL, 0x0201, FALSE, 0);
340	mddi_queue_register_write(REG_PTGCTL, 0x0010, FALSE, 0);
341	mddi_queue_register_write(REG_PTHP, 4, FALSE, 0);
342	mddi_queue_register_write(REG_PTHB, 40, FALSE, 0);
343	mddi_queue_register_write(REG_PTHW, 128, FALSE, 0);
344	mddi_queue_register_write(REG_PTHF, 92, FALSE, 0);
345	mddi_queue_register_write(REG_PTVP, 1, FALSE, 0);
346	mddi_queue_register_write(REG_PTVB, 2, FALSE, 0);
347	mddi_queue_register_write(REG_PTVW, 128, FALSE, 0);
348	mddi_queue_register_write(REG_PTVF, 15, FALSE, 0);
349
350	/* Now the sub display..... */
351	/* Reset High */
352	mddi_queue_register_write(REG_SUBCTL, 0x0200, FALSE, 0);
353	/* CS=1,RD=1,WE=1,RS=1 */
354	mddi_queue_register_write(REG_SUBTCMD, 0x000f, TRUE, 0);
355	mddi_wait(1);
356	/* Wait 5us */
357
358	if (sharp_subpanel_type == SHARP_SUB_UNKNOWN) {
359		uint32 data;
360
361		sub_through_write(1, 0x05);
362		sub_through_write(1, 0x6A);
363		sub_through_write(1, 0x1D);
364		sub_through_write(1, 0x05);
365		data = sub_through_read(1);
366		if (data == 0x6A) {
367			sharp_subpanel_type = SHARP_SUB_HYNIX;
368		} else {
369			sub_through_write(0, 0x36);
370			sub_through_write(1, 0xA8);
371			sub_through_write(0, 0x09);
372			data = sub_through_read(1);
373			data = sub_through_read(1);
374			if (data == 0x54) {
375				sub_through_write(0, 0x36);
376				sub_through_write(1, 0x00);
377				sharp_subpanel_type = SHARP_SUB_ROHM;
378			}
379		}
380	}
381
382	if (sharp_subpanel_type == SHARP_SUB_HYNIX) {
383		sub_through_write(1, 0x00);	/* Display setting 1 */
384		sub_through_write(1, 0x04);
385		sub_through_write(1, 0x01);
386		sub_through_write(1, 0x05);
387		sub_through_write(1, 0x0280);
388		sub_through_write(1, 0x0301);
389		sub_through_write(1, 0x0402);
390		sub_through_write(1, 0x0500);
391		sub_through_write(1, 0x0681);
392		sub_through_write(1, 0x077F);
393		sub_through_write(1, 0x08C0);
394		sub_through_write(1, 0x0905);
395		sub_through_write(1, 0x0A02);
396		sub_through_write(1, 0x0B00);
397		sub_through_write(1, 0x0C00);
398		sub_through_write(1, 0x0D00);
399		sub_through_write(1, 0x0E00);
400		sub_through_write(1, 0x0F00);
401
402		sub_through_write(1, 0x100B);	/* Display setting 2 */
403		sub_through_write(1, 0x1103);
404		sub_through_write(1, 0x1237);
405		sub_through_write(1, 0x1300);
406		sub_through_write(1, 0x1400);
407		sub_through_write(1, 0x1500);
408		sub_through_write(1, 0x1605);
409		sub_through_write(1, 0x1700);
410		sub_through_write(1, 0x1800);
411		sub_through_write(1, 0x192E);
412		sub_through_write(1, 0x1A00);
413		sub_through_write(1, 0x1B00);
414		sub_through_write(1, 0x1C00);
415
416		sub_through_write(1, 0x151A);	/* Power setting */
417
418		sub_through_write(1, 0x2002);	/* Gradation Palette setting */
419		sub_through_write(1, 0x2107);
420		sub_through_write(1, 0x220C);
421		sub_through_write(1, 0x2310);
422		sub_through_write(1, 0x2414);
423		sub_through_write(1, 0x2518);
424		sub_through_write(1, 0x261C);
425		sub_through_write(1, 0x2720);
426		sub_through_write(1, 0x2824);
427		sub_through_write(1, 0x2928);
428		sub_through_write(1, 0x2A2B);
429		sub_through_write(1, 0x2B2E);
430		sub_through_write(1, 0x2C31);
431		sub_through_write(1, 0x2D34);
432		sub_through_write(1, 0x2E37);
433		sub_through_write(1, 0x2F3A);
434		sub_through_write(1, 0x303C);
435		sub_through_write(1, 0x313E);
436		sub_through_write(1, 0x323F);
437		sub_through_write(1, 0x3340);
438		sub_through_write(1, 0x3441);
439		sub_through_write(1, 0x3543);
440		sub_through_write(1, 0x3646);
441		sub_through_write(1, 0x3749);
442		sub_through_write(1, 0x384C);
443		sub_through_write(1, 0x394F);
444		sub_through_write(1, 0x3A52);
445		sub_through_write(1, 0x3B59);
446		sub_through_write(1, 0x3C60);
447		sub_through_write(1, 0x3D67);
448		sub_through_write(1, 0x3E6E);
449		sub_through_write(1, 0x3F7F);
450		sub_through_write(1, 0x4001);
451		sub_through_write(1, 0x4107);
452		sub_through_write(1, 0x420C);
453		sub_through_write(1, 0x4310);
454		sub_through_write(1, 0x4414);
455		sub_through_write(1, 0x4518);
456		sub_through_write(1, 0x461C);
457		sub_through_write(1, 0x4720);
458		sub_through_write(1, 0x4824);
459		sub_through_write(1, 0x4928);
460		sub_through_write(1, 0x4A2B);
461		sub_through_write(1, 0x4B2E);
462		sub_through_write(1, 0x4C31);
463		sub_through_write(1, 0x4D34);
464		sub_through_write(1, 0x4E37);
465		sub_through_write(1, 0x4F3A);
466		sub_through_write(1, 0x503C);
467		sub_through_write(1, 0x513E);
468		sub_through_write(1, 0x523F);
469		sub_through_write(1, 0x5340);
470		sub_through_write(1, 0x5441);
471		sub_through_write(1, 0x5543);
472		sub_through_write(1, 0x5646);
473		sub_through_write(1, 0x5749);
474		sub_through_write(1, 0x584C);
475		sub_through_write(1, 0x594F);
476		sub_through_write(1, 0x5A52);
477		sub_through_write(1, 0x5B59);
478		sub_through_write(1, 0x5C60);
479		sub_through_write(1, 0x5D67);
480		sub_through_write(1, 0x5E6E);
481		sub_through_write(1, 0x5F7E);
482		sub_through_write(1, 0x6000);
483		sub_through_write(1, 0x6107);
484		sub_through_write(1, 0x620C);
485		sub_through_write(1, 0x6310);
486		sub_through_write(1, 0x6414);
487		sub_through_write(1, 0x6518);
488		sub_through_write(1, 0x661C);
489		sub_through_write(1, 0x6720);
490		sub_through_write(1, 0x6824);
491		sub_through_write(1, 0x6928);
492		sub_through_write(1, 0x6A2B);
493		sub_through_write(1, 0x6B2E);
494		sub_through_write(1, 0x6C31);
495		sub_through_write(1, 0x6D34);
496		sub_through_write(1, 0x6E37);
497		sub_through_write(1, 0x6F3A);
498		sub_through_write(1, 0x703C);
499		sub_through_write(1, 0x713E);
500		sub_through_write(1, 0x723F);
501		sub_through_write(1, 0x7340);
502		sub_through_write(1, 0x7441);
503		sub_through_write(1, 0x7543);
504		sub_through_write(1, 0x7646);
505		sub_through_write(1, 0x7749);
506		sub_through_write(1, 0x784C);
507		sub_through_write(1, 0x794F);
508		sub_through_write(1, 0x7A52);
509		sub_through_write(1, 0x7B59);
510		sub_through_write(1, 0x7C60);
511		sub_through_write(1, 0x7D67);
512		sub_through_write(1, 0x7E6E);
513		sub_through_write(1, 0x7F7D);
514
515		sub_through_write(1, 0x1851);	/* Display on */
516
517		mddi_queue_register_write(REG_AGM, 0x0000, TRUE, 0);
518
519		/* 1 pixel / 1 post clock */
520		mddi_queue_register_write(REG_CLKDIV2, 0x3b00, FALSE, 0);
521
522		/* SUB LCD select */
523		mddi_queue_register_write(REG_PSTCTL2, 0x0080, FALSE, 0);
524
525		/* RS=0,command initiate number=0,select master mode */
526		mddi_queue_register_write(REG_SUBCTL, 0x0202, FALSE, 0);
527
528		/* Sub LCD Data transform start */
529		mddi_queue_register_write(REG_PSTCTL1, 0x0003, FALSE, 0);
530
531	} else if (sharp_subpanel_type == SHARP_SUB_ROHM) {
532
533		sub_through_write(0, 0x01);	/* Display setting */
534		sub_through_write(1, 0x00);
535
536		mddi_wait(1);
537		/* Wait 100us  <----- ******* Update 2005/01/24 */
538
539		sub_through_write(0, 0xB6);
540		sub_through_write(1, 0x0C);
541		sub_through_write(1, 0x4A);
542		sub_through_write(1, 0x20);
543		sub_through_write(0, 0x3A);
544		sub_through_write(1, 0x05);
545		sub_through_write(0, 0xB7);
546		sub_through_write(1, 0x01);
547		sub_through_write(0, 0xBA);
548		sub_through_write(1, 0x20);
549		sub_through_write(1, 0x02);
550		sub_through_write(0, 0x25);
551		sub_through_write(1, 0x4F);
552		sub_through_write(0, 0xBB);
553		sub_through_write(1, 0x00);
554		sub_through_write(0, 0x36);
555		sub_through_write(1, 0x00);
556		sub_through_write(0, 0xB1);
557		sub_through_write(1, 0x05);
558		sub_through_write(0, 0xBE);
559		sub_through_write(1, 0x80);
560		sub_through_write(0, 0x26);
561		sub_through_write(1, 0x01);
562		sub_through_write(0, 0x2A);
563		sub_through_write(1, 0x02);
564		sub_through_write(1, 0x81);
565		sub_through_write(0, 0x2B);
566		sub_through_write(1, 0x00);
567		sub_through_write(1, 0x7F);
568
569		sub_through_write(0, 0x2C);
570		sub_through_write(0, 0x11);	/* Sleep mode off */
571
572		mddi_wait(1);
573		/* Wait 100 ms <----- ******* Update 2005/01/24 */
574
575		sub_through_write(0, 0x29);	/* Display on */
576		sub_through_write(0, 0xB3);
577		sub_through_write(1, 0x20);
578		sub_through_write(1, 0xAA);
579		sub_through_write(1, 0xA0);
580		sub_through_write(1, 0x20);
581		sub_through_write(1, 0x30);
582		sub_through_write(1, 0xA6);
583		sub_through_write(1, 0xFF);
584		sub_through_write(1, 0x9A);
585		sub_through_write(1, 0x9F);
586		sub_through_write(1, 0xAF);
587		sub_through_write(1, 0xBC);
588		sub_through_write(1, 0xCF);
589		sub_through_write(1, 0xDF);
590		sub_through_write(1, 0x20);
591		sub_through_write(1, 0x9C);
592		sub_through_write(1, 0x8A);
593
594		sub_through_write(0, 0x002C);	/* Display on */
595
596		/* 1 pixel / 2 post clock */
597		mddi_queue_register_write(REG_CLKDIV2, 0x7b00, FALSE, 0);
598
599		/* SUB LCD select */
600		mddi_queue_register_write(REG_PSTCTL2, 0x0080, FALSE, 0);
601
602		/* RS=1,command initiate number=0,select master mode */
603		mddi_queue_register_write(REG_SUBCTL, 0x0242, FALSE, 0);
604
605		/* Sub LCD Data transform start */
606		mddi_queue_register_write(REG_PSTCTL1, 0x0003, FALSE, 0);
607
608	}
609
610	/* Set the MDP pixel data attributes for Sub Display */
611	mddi_host_write_pix_attr_reg(0x00C0);
612}
613
614void mddi_sharp_lcd_vsync_detected(boolean detected)
615{
616	/* static timetick_type start_time = 0; */
617	static struct timeval start_time;
618	static boolean first_time = TRUE;
619	/* uint32 mdp_cnt_val = 0; */
620	/* timetick_type elapsed_us; */
621	struct timeval now;
622	uint32 elapsed_us;
623	uint32 num_vsyncs;
624
625	if ((detected) || (mddi_sharp_vsync_attempts > 5)) {
626		if ((detected) && (mddi_sharp_monitor_refresh_value)) {
627			/* if (start_time != 0) */
628			if (!first_time) {
629				jiffies_to_timeval(jiffies, &now);
630				elapsed_us =
631				    (now.tv_sec - start_time.tv_sec) * 1000000 +
632				    now.tv_usec - start_time.tv_usec;
633				/*
634				* LCD is configured for a refresh every usecs,
635				* so to determine the number of vsyncs that
636				* have occurred since the last measurement add
637				* half that to the time difference and divide
638				* by the refresh rate.
639				*/
640				num_vsyncs = (elapsed_us +
641					      (mddi_sharp_usecs_per_refresh >>
642					       1)) /
643				    mddi_sharp_usecs_per_refresh;
644				/*
645				 * LCD is configured for * hsyncs (rows) per
646				 * refresh cycle. Calculate new rows_per_second
647				 * value based upon these new measurements.
648				 * MDP can update with this new value.
649				 */
650				mddi_sharp_rows_per_second =
651				    (mddi_sharp_rows_per_refresh * 1000 *
652				     num_vsyncs) / (elapsed_us / 1000);
653			}
654			/* start_time = timetick_get(); */
655			first_time = FALSE;
656			jiffies_to_timeval(jiffies, &start_time);
657			if (mddi_sharp_report_refresh_measurements) {
658				/* mdp_cnt_val = MDP_LINE_COUNT; */
659			}
660		}
661		/* if detected = TRUE, client initiated wakeup was detected */
662		if (mddi_sharp_vsync_handler != NULL) {
663			(*mddi_sharp_vsync_handler)
664			    (mddi_sharp_vsync_handler_arg);
665			mddi_sharp_vsync_handler = NULL;
666		}
667		mddi_vsync_detect_enabled = FALSE;
668		mddi_sharp_vsync_attempts = 0;
669		/* need to clear this vsync wakeup */
670		if (!mddi_queue_register_write_int(REG_INTR, 0x0000)) {
671			MDDI_MSG_ERR("Vsync interrupt clear failed!\n");
672		}
673		if (!detected) {
674			/* give up after 5 failed attempts but show error */
675			MDDI_MSG_NOTICE("Vsync detection failed!\n");
676		} else if ((mddi_sharp_monitor_refresh_value) &&
677			(mddi_sharp_report_refresh_measurements)) {
678			MDDI_MSG_NOTICE("  Lines Per Second=%d!\n",
679				mddi_sharp_rows_per_second);
680		}
681	} else
682		/* if detected = FALSE, we woke up from hibernation, but did not
683		 * detect client initiated wakeup.
684		 */
685		mddi_sharp_vsync_attempts++;
686}
687
688/* ISR to be executed */
689void mddi_sharp_vsync_set_handler(msm_fb_vsync_handler_type handler, void *arg)
690{
691	boolean error = FALSE;
692	unsigned long flags;
693
694	/* Disable interrupts */
695	spin_lock_irqsave(&mddi_host_spin_lock, flags);
696	/* INTLOCK(); */
697
698	if (mddi_sharp_vsync_handler != NULL)
699		error = TRUE;
700
701	/* Register the handler for this particular GROUP interrupt source */
702	mddi_sharp_vsync_handler = handler;
703	mddi_sharp_vsync_handler_arg = arg;
704
705	/* Restore interrupts */
706	spin_unlock_irqrestore(&mddi_host_spin_lock, flags);
707	/* INTFREE(); */
708
709	if (error)
710		MDDI_MSG_ERR("MDDI: Previous Vsync handler never called\n");
711
712	/* Enable the vsync wakeup */
713	mddi_queue_register_write(REG_INTR, 0x8100, FALSE, 0);
714
715	mddi_sharp_vsync_attempts = 1;
716	mddi_vsync_detect_enabled = TRUE;
717}				/* mddi_sharp_vsync_set_handler */
718
719static int mddi_sharp_lcd_on(struct platform_device *pdev)
720{
721	struct msm_fb_data_type *mfd;
722
723	mfd = platform_get_drvdata(pdev);
724
725	if (!mfd)
726		return -ENODEV;
727
728	if (mfd->key != MFD_KEY)
729		return -EINVAL;
730
731	if (mfd->panel.id == SHARP_QVGA_PRIM)
732		mddi_sharp_prim_lcd_init();
733	else
734		mddi_sharp_sub_lcd_init();
735
736	return 0;
737}
738
739static int mddi_sharp_lcd_off(struct platform_device *pdev)
740{
741	mddi_sharp_lcd_powerdown();
742	return 0;
743}
744
745static int __init mddi_sharp_probe(struct platform_device *pdev)
746{
747	if (pdev->id == 0) {
748		mddi_sharp_pdata = pdev->dev.platform_data;
749		return 0;
750	}
751
752	msm_fb_add_device(pdev);
753
754	return 0;
755}
756
757static struct platform_driver this_driver = {
758	.probe  = mddi_sharp_probe,
759	.driver = {
760		.name   = "mddi_sharp_qvga",
761	},
762};
763
764static struct msm_fb_panel_data mddi_sharp_panel_data0 = {
765	.on = mddi_sharp_lcd_on,
766	.off = mddi_sharp_lcd_off,
767	.set_backlight = mddi_sharp_lcd_set_backlight,
768	.set_vsync_notifier = mddi_sharp_vsync_set_handler,
769};
770
771static struct platform_device this_device_0 = {
772	.name   = "mddi_sharp_qvga",
773	.id	= SHARP_QVGA_PRIM,
774	.dev	= {
775		.platform_data = &mddi_sharp_panel_data0,
776	}
777};
778
779static struct msm_fb_panel_data mddi_sharp_panel_data1 = {
780	.on = mddi_sharp_lcd_on,
781	.off = mddi_sharp_lcd_off,
782};
783
784static struct platform_device this_device_1 = {
785	.name   = "mddi_sharp_qvga",
786	.id	= SHARP_128X128_SECD,
787	.dev	= {
788		.platform_data = &mddi_sharp_panel_data1,
789	}
790};
791
792static int __init mddi_sharp_init(void)
793{
794	int ret;
795	struct msm_panel_info *pinfo;
796
797#ifdef CONFIG_FB_MSM_MDDI_AUTO_DETECT
798	u32 id;
799
800	ret = msm_fb_detect_client("mddi_sharp_qvga");
801	if (ret == -ENODEV)
802		return 0;
803
804	if (ret) {
805		id = mddi_get_client_id();
806
807		if (((id >> 16) != 0x0) || ((id & 0xffff) != 0x8835))
808			return 0;
809	}
810#endif
811	if (mddi_host_core_version > 8) {
812		/* can use faster refresh with newer hw revisions */
813		mddi_sharp_debug_60hz_refresh = TRUE;
814
815		/* Timing variables for tracking vsync */
816		/* dot_clock = 6.00MHz
817		 * horizontal count = 296
818		 * vertical count = 338
819		 * refresh rate = 6000000/(296+338) = 60Hz
820		 */
821		mddi_sharp_rows_per_second = 20270;	/* 6000000/296 */
822		mddi_sharp_rows_per_refresh = 338;
823		mddi_sharp_usecs_per_refresh = 16674;	/* (296+338)/6000000 */
824	} else {
825		/* Timing variables for tracking vsync */
826		/* dot_clock = 5.20MHz
827		 * horizontal count = 376
828		 * vertical count = 338
829		 * refresh rate = 5200000/(376+338) = 41Hz
830		 */
831		mddi_sharp_rows_per_second = 13830;	/* 5200000/376 */
832		mddi_sharp_rows_per_refresh = 338;
833		mddi_sharp_usecs_per_refresh = 24440;	/* (376+338)/5200000 */
834	}
835
836	ret = platform_driver_register(&this_driver);
837	if (!ret) {
838		pinfo = &mddi_sharp_panel_data0.panel_info;
839		pinfo->xres = 240;
840		pinfo->yres = 320;
841		pinfo->type = MDDI_PANEL;
842		pinfo->pdest = DISPLAY_1;
843		pinfo->mddi.vdopkt = MDDI_DEFAULT_PRIM_PIX_ATTR;
844		pinfo->wait_cycle = 0;
845		pinfo->bpp = 18;
846		pinfo->fb_num = 2;
847		pinfo->clk_rate = 122880000;
848		pinfo->clk_min = 120000000;
849		pinfo->clk_max = 125000000;
850		pinfo->lcd.vsync_enable = TRUE;
851		pinfo->lcd.refx100 =
852			(mddi_sharp_rows_per_second * 100) /
853			mddi_sharp_rows_per_refresh;
854		pinfo->lcd.v_back_porch = 12;
855		pinfo->lcd.v_front_porch = 6;
856		pinfo->lcd.v_pulse_width = 0;
857		pinfo->lcd.hw_vsync_mode = FALSE;
858		pinfo->lcd.vsync_notifier_period = (1 * HZ);
859		pinfo->bl_max = 7;
860		pinfo->bl_min = 1;
861
862		ret = platform_device_register(&this_device_0);
863		if (ret)
864			platform_driver_unregister(&this_driver);
865
866		pinfo = &mddi_sharp_panel_data1.panel_info;
867		pinfo->xres = 128;
868		pinfo->yres = 128;
869		pinfo->type = MDDI_PANEL;
870		pinfo->pdest = DISPLAY_2;
871		pinfo->mddi.vdopkt = 0x400;
872		pinfo->wait_cycle = 0;
873		pinfo->bpp = 18;
874		pinfo->clk_rate = 122880000;
875		pinfo->clk_min = 120000000;
876		pinfo->clk_max = 125000000;
877		pinfo->fb_num = 2;
878
879		ret = platform_device_register(&this_device_1);
880		if (ret) {
881			platform_device_unregister(&this_device_0);
882			platform_driver_unregister(&this_driver);
883		}
884	}
885
886	if (!ret)
887		mddi_lcd.vsync_detected = mddi_sharp_lcd_vsync_detected;
888
889	return ret;
890}
891
892module_init(mddi_sharp_init);
893