summaryrefslogtreecommitdiff
path: root/target/linux/xburst/patches-2.6.36/440-metronome.patch
blob: a9b8781dd7279c06a83d110e2de98cfaba338803 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
From a3777b7407a9ce96a6904a6942881bbb1049594d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 12 May 2010 14:24:46 +0200
Subject: [PATCH] metronome patches

---
 drivers/video/metronomefb.c |  788 +++++++++++++++++++++++++++++++++++++------
 include/video/metronomefb.h |   33 ++-
 2 files changed, 710 insertions(+), 111 deletions(-)

--- a/drivers/video/metronomefb.c
+++ b/drivers/video/metronomefb.c
@@ -18,11 +18,13 @@
  * is provided as am200epd.c
  *
  */
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/mm.h>
+#include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
@@ -34,16 +36,25 @@
 #include <linux/dma-mapping.h>
 #include <linux/uaccess.h>
 #include <linux/irq.h>
+#include <linux/ctype.h>
 
 #include <video/metronomefb.h>
 
 #include <asm/unaligned.h>
 
-/* Display specific information */
-#define DPY_W 832
-#define DPY_H 622
+/*
+ * 12 is ok to avoid refreshing whole screen while small elements are changed,
+ * while forcing full refresh if largish dialog boxes or menus are
+ * shown/dismissed.
+ */
+#define DEFAULT_MANUAL_REFRESH_THRESHOLD 12
+
+#define WF_MODE_INIT	0 /* Initialization */
+#define WF_MODE_MU	1 /* Monochrome update */
+#define WF_MODE_GU	2 /* Grayscale update */
+#define WF_MODE_GC	3 /* Grayscale clearing */
 
-static int user_wfm_size;
+static int temp = 25;
 
 /* frame differs from image. frame includes non-visible pixels */
 struct epd_frame {
@@ -53,7 +64,7 @@ struct epd_frame {
 	int wfm_size;
 };
 
-static struct epd_frame epd_frame_table[] = {
+static const struct epd_frame epd_frame_table[] = {
 	{
 		.fw = 832,
 		.fh = 622,
@@ -97,24 +108,40 @@ static struct epd_frame epd_frame_table[
 		},
 		.wfm_size = 46770,
 	},
+	{
+		.fw = 800,
+		.fh = 600,
+		.config = {
+			15 /* sdlew */
+			| 2 << 8 /* sdosz */
+			| 0 << 11 /* sdor */
+			| 0 << 12 /* sdces */
+			| 0 << 15, /* sdcer */
+			42 /* gdspl */
+			| 1 << 8 /* gdr1 */
+			| 1 << 9 /* sdshr */
+			| 0 << 15, /* gdspp */
+			18 /* gdspw */
+			| 0 << 15, /* dispc */
+			599 /* vdlc */
+			| 0 << 11 /* dsi */
+			| 0 << 12, /* dsic */
+		},
+		.wfm_size = 46901,
+	},
 };
 
-static struct fb_fix_screeninfo metronomefb_fix __devinitdata = {
+static const struct fb_fix_screeninfo metronomefb_fix __devinitconst = {
 	.id =		"metronomefb",
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.visual =	FB_VISUAL_STATIC_PSEUDOCOLOR,
 	.xpanstep =	0,
 	.ypanstep =	0,
 	.ywrapstep =	0,
-	.line_length =	DPY_W,
 	.accel =	FB_ACCEL_NONE,
 };
 
-static struct fb_var_screeninfo metronomefb_var __devinitdata = {
-	.xres		= DPY_W,
-	.yres		= DPY_H,
-	.xres_virtual	= DPY_W,
-	.yres_virtual	= DPY_H,
+static const struct fb_var_screeninfo metronomefb_var __devinitconst = {
 	.bits_per_pixel	= 8,
 	.grayscale	= 1,
 	.nonstd		= 1,
@@ -167,7 +194,7 @@ static u16 calc_img_cksum(u16 *start, in
 }
 
 /* here we decode the incoming waveform file and populate metromem */
-static int __devinit load_waveform(u8 *mem, size_t size, int m, int t,
+static int load_waveform(u8 *mem, size_t size, int m, int t,
 				struct metronomefb_par *par)
 {
 	int tta;
@@ -181,16 +208,12 @@ static int __devinit load_waveform(u8 *m
 	int mem_idx = 0;
 	struct waveform_hdr *wfm_hdr;
 	u8 *metromem = par->metromem_wfm;
-	struct device *dev = par->info->dev;
+	struct device *dev = &par->pdev->dev;
+	u8 mc, trc;
+	u16 *p;
+	u16 img_cksum;
 
-	if (user_wfm_size)
-		epd_frame_table[par->dt].wfm_size = user_wfm_size;
-
-	if (size != epd_frame_table[par->dt].wfm_size) {
-		dev_err(dev, "Error: unexpected size %Zd != %d\n", size,
-					epd_frame_table[par->dt].wfm_size);
-		return -EINVAL;
-	}
+	dev_dbg(dev, "Loading waveforms, mode %d, temperature %d\n", m, t);
 
 	wfm_hdr = (struct waveform_hdr *) mem;
 
@@ -208,8 +231,9 @@ static int __devinit load_waveform(u8 *m
 					wfm_hdr->wfm_cs);
 		return -EINVAL;
 	}
-	wfm_hdr->mc += 1;
-	wfm_hdr->trc += 1;
+	mc = wfm_hdr->mc + 1;
+	trc = wfm_hdr->trc + 1;
+
 	for (i = 0; i < 5; i++) {
 		if (*(wfm_hdr->stuff2a + i) != 0) {
 			dev_err(dev, "Error: unexpected value in padding\n");
@@ -221,10 +245,10 @@ static int __devinit load_waveform(u8 *m
 	the waveform. presumably selecting the right one for the
 	desired temperature. it works out the offset of the first
 	v that exceeds the specified temperature */
-	if ((sizeof(*wfm_hdr) + wfm_hdr->trc) > size)
+	if ((sizeof(*wfm_hdr) + trc) > size)
 		return -EINVAL;
 
-	for (i = sizeof(*wfm_hdr); i <= sizeof(*wfm_hdr) + wfm_hdr->trc; i++) {
+	for (i = sizeof(*wfm_hdr); i <= sizeof(*wfm_hdr) + trc; i++) {
 		if (mem[i] > t) {
 			trn = i - sizeof(*wfm_hdr) - 1;
 			break;
@@ -232,7 +256,7 @@ static int __devinit load_waveform(u8 *m
 	}
 
 	/* check temperature range table checksum */
-	cksum_idx = sizeof(*wfm_hdr) + wfm_hdr->trc + 1;
+	cksum_idx = sizeof(*wfm_hdr) + trc + 1;
 	if (cksum_idx > size)
 		return -EINVAL;
 	cksum = calc_cksum(sizeof(*wfm_hdr), cksum_idx, mem);
@@ -294,6 +318,7 @@ static int __devinit load_waveform(u8 *m
 	cksum_idx = wfm_idx;
 	if (cksum_idx > size)
 		return -EINVAL;
+	dev_dbg(dev, "mem_idx = %u\n", mem_idx);
 	cksum = calc_cksum(owfm_idx, cksum_idx, mem);
 	if (cksum != mem[cksum_idx]) {
 		dev_err(dev, "Error: bad waveform data cksum"
@@ -302,16 +327,47 @@ static int __devinit load_waveform(u8 *m
 	}
 	par->frame_count = (mem_idx/64);
 
+	p = (u16 *)par->metromem_wfm;
+	img_cksum = calc_img_cksum(p, 16384 / 2);
+	p[16384 / 2] = __cpu_to_le16(img_cksum);
+
+	par->current_wf_mode = m;
+	par->current_wf_temp = t;
+
 	return 0;
 }
 
+static int check_err(struct metronomefb_par *par)
+{
+	int res;
+
+	res = par->board->get_err(par);
+	dev_dbg(&par->pdev->dev, "ERR = %d\n", res);
+	return res;
+}
+
+static inline int wait_for_rdy(struct metronomefb_par *par)
+{
+	int res = 0;
+
+	if (!par->board->get_rdy(par))
+		res = par->board->met_wait_event_intr(par);
+
+	return res;
+}
+
 static int metronome_display_cmd(struct metronomefb_par *par)
 {
 	int i;
 	u16 cs;
 	u16 opcode;
-	static u8 borderval;
+	int res;
 
+	res = wait_for_rdy(par);
+	if (res)
+		return res;
+
+	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 	/* setup display command
 	we can't immediately set the opcode since the controller
 	will try parse the command before we've set it all up
@@ -324,8 +380,9 @@ static int metronome_display_cmd(struct 
 
 	/* set the args ( 2 bytes ) for display */
 	i = 0;
-	par->metromem_cmd->args[i] = 	1 << 3 /* border update */
-					| ((borderval++ % 4) & 0x0F) << 4
+	par->metromem_cmd->args[i] = 	0 << 3 /* border update */
+					| (3 << 4)
+//					| ((borderval++ % 4) & 0x0F) << 4
 					| (par->frame_count - 1) << 8;
 	cs += par->metromem_cmd->args[i++];
 
@@ -335,21 +392,25 @@ static int metronome_display_cmd(struct 
 	par->metromem_cmd->csum = cs;
 	par->metromem_cmd->opcode = opcode; /* display cmd */
 
-	return par->board->met_wait_event_intr(par);
+	return 0;
+
 }
 
 static int __devinit metronome_powerup_cmd(struct metronomefb_par *par)
 {
 	int i;
 	u16 cs;
+	int res;
 
+	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 	/* setup power up command */
 	par->metromem_cmd->opcode = 0x1234; /* pwr up pseudo cmd */
 	cs = par->metromem_cmd->opcode;
 
 	/* set pwr1,2,3 to 1024 */
 	for (i = 0; i < 3; i++) {
-		par->metromem_cmd->args[i] = 1024;
+//		par->metromem_cmd->args[i] = 1024;
+		par->metromem_cmd->args[i] = 100;
 		cs += par->metromem_cmd->args[i];
 	}
 
@@ -364,7 +425,9 @@ static int __devinit metronome_powerup_c
 	msleep(1);
 	par->board->set_stdby(par, 1);
 
-	return par->board->met_wait_event(par);
+	res = par->board->met_wait_event(par);
+	dev_dbg(&par->pdev->dev, "%s: EXIT: %d\n", __func__, res);
+	return res;
 }
 
 static int __devinit metronome_config_cmd(struct metronomefb_par *par)
@@ -373,8 +436,9 @@ static int __devinit metronome_config_cm
 	we can't immediately set the opcode since the controller
 	will try parse the command before we've set it all up */
 
-	memcpy(par->metromem_cmd->args, epd_frame_table[par->dt].config,
-		sizeof(epd_frame_table[par->dt].config));
+	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
+	memcpy(par->metromem_cmd->args, par->epd_frame->config,
+		sizeof(par->epd_frame->config));
 	/* the rest are 0 */
 	memset((u8 *) (par->metromem_cmd->args + 4), 0, (32-4)*2);
 
@@ -395,11 +459,12 @@ static int __devinit metronome_init_cmd(
 	will try parse the command before we've set it all up
 	so we just set cs here and set the opcode at the end */
 
+	dev_dbg(&par->pdev->dev, "%s: ENTER\n", __func__);
 	cs = 0xCC20;
 
 	/* set the args ( 2 bytes ) for init */
 	i = 0;
-	par->metromem_cmd->args[i] = 0;
+	par->metromem_cmd->args[i] = 0x0007;
 	cs += par->metromem_cmd->args[i++];
 
 	/* the rest are 0 */
@@ -411,76 +476,268 @@ static int __devinit metronome_init_cmd(
 	return par->board->met_wait_event(par);
 }
 
-static int __devinit metronome_init_regs(struct metronomefb_par *par)
+static int metronome_bootup(struct metronomefb_par *par)
 {
 	int res;
 
-	res = par->board->setup_io(par);
-	if (res)
-		return res;
-
 	res = metronome_powerup_cmd(par);
-	if (res)
-		return res;
+	if (res) {
+		dev_err(&par->pdev->dev, "metronomefb: POWERUP cmd failed\n");
+		goto finish;
+	}
 
+	check_err(par);
 	res = metronome_config_cmd(par);
-	if (res)
-		return res;
+	if (res) {
+		dev_err(&par->pdev->dev, "metronomefb: CONFIG cmd failed\n");
+		goto finish;
+	}
+	check_err(par);
 
 	res = metronome_init_cmd(par);
+	if (res)
+		dev_err(&par->pdev->dev, "metronomefb: INIT cmd failed\n");
+	check_err(par);
+
+finish:
+	return res;
+}
+
+static int __devinit metronome_init_regs(struct metronomefb_par *par)
+{
+	int res;
+
+	if (par->board->power_ctl)
+		par->board->power_ctl(par, METRONOME_POWER_ON);
+
+	res =  metronome_bootup(par);
 
 	return res;
 }
 
-static void metronomefb_dpy_update(struct metronomefb_par *par)
+static uint16_t metronomefb_update_img_buffer_rotated(struct metronomefb_par *par)
 {
-	int fbsize;
-	u16 cksum;
-	unsigned char *buf = (unsigned char __force *)par->info->screen_base;
+	int x, y;
+	int xstep, ystep;
+	int i, j;
+	uint16_t cksum = 0;
+	uint8_t *buf = par->info->screen_base;
+	uint32_t *img = (uint32_t *)(par->metromem_img);
+	int fw = par->epd_frame->fw;
+	int fh = par->epd_frame->fh;
+	int fw_buf = fw / 4;
+	uint32_t *fxbuckets = par->fxbuckets;
+	uint32_t *fybuckets = par->fybuckets;
+	uint32_t diff;
+	uint32_t tmp;
+
+	switch (par->rotation) {
+	case FB_ROTATE_CW:
+		xstep = -fh;
+		ystep = fw * fh + 1;
+		j = (fw - 1) * fh;
+		break;
+	case FB_ROTATE_UD:
+		xstep = -1;
+		ystep = 0;
+		j = fw * fh - 1;
+		break;
+	case FB_ROTATE_CCW:
+		xstep = fh;
+		ystep = -fw * fh - 1;
+		j = fh - 1;
+		break;
+	default:
+		BUG();
+		break;
+	}
 
-	fbsize = par->info->fix.smem_len;
-	/* copy from vm to metromem */
-	memcpy(par->metromem_img, buf, fbsize);
+	memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
+	memset(fybuckets, 0, fh * sizeof(*fybuckets));
+
+	i = 0;
+	for (y = 0; y < fh; y++) {
+		for(x = 0; x < fw_buf; x++, i++) {
+			tmp = (buf[j] << 5);
+			j += xstep;
+			tmp |= (buf[j] << 13);
+			j += xstep;
+			tmp |= (buf[j] << 21);
+			j += xstep;
+			tmp |= (buf[j] << 29);
+			j += xstep;
+			tmp &= 0xe0e0e0e0;
+
+			img[i] &= 0xf0f0f0f0;
+			diff = img[i] ^ tmp;
+
+			fxbuckets[x] |= diff;
+			fybuckets[y] |= diff;
+
+			img[i] = (img[i] >> 4) | tmp;
+			cksum += img[i] & 0x0000ffff;
+			cksum += (img[i] >> 16);
 
-	cksum = calc_img_cksum((u16 *) par->metromem_img, fbsize/2);
-	*((u16 *)(par->metromem_img) + fbsize/2) = cksum;
-	metronome_display_cmd(par);
+		}
+		j += ystep;
+	}
+
+	return cksum;
 }
 
-static u16 metronomefb_dpy_update_page(struct metronomefb_par *par, int index)
+static uint16_t metronomefb_update_img_buffer_normal(struct metronomefb_par *par)
 {
-	int i;
-	u16 csum = 0;
-	u16 *buf = (u16 __force *)(par->info->screen_base + index);
-	u16 *img = (u16 *)(par->metromem_img + index);
-
-	/* swizzle from vm to metromem and recalc cksum at the same time*/
-	for (i = 0; i < PAGE_SIZE/2; i++) {
-		*(img + i) = (buf[i] << 5) & 0xE0E0;
-		csum += *(img + i);
+	int x, y, i;
+	uint16_t cksum = 0;
+	uint32_t *buf = (uint32_t __force *)par->info->screen_base;
+	uint32_t *img = (uint32_t *)(par->metromem_img);
+	uint32_t diff;
+	uint32_t tmp;
+	int fw = par->epd_frame->fw;
+	int fh = par->epd_frame->fh;
+	int fw_buf = fw / sizeof(*buf);
+	uint32_t *fxbuckets = par->fxbuckets;
+	uint32_t *fybuckets = par->fybuckets;
+
+	memset(fxbuckets, 0, fw_buf * sizeof(*fxbuckets));
+	memset(fybuckets, 0, fh * sizeof(*fybuckets));
+
+	i = 0;
+	for (y = 0; y < fh; y++) {
+		for(x = 0; x < fw_buf; x++, i++) {
+			tmp = (buf[i] << 5) & 0xe0e0e0e0;
+			img[i] &= 0xf0f0f0f0;
+			diff = img[i] ^ tmp;
+
+			fxbuckets[x] |= diff;
+			fybuckets[y] |= diff;
+
+			img[i] = (img[i] >> 4) | tmp;
+			cksum += img[i] & 0x0000ffff;
+			cksum += (img[i] >> 16);
+		}
 	}
-	return csum;
+
+	return cksum;
+}
+
+static unsigned int metronomefb_get_change_count(struct metronomefb_par *par)
+{
+	int min_x;
+	int max_x;
+	int min_y;
+	int max_y;
+	int fw = par->epd_frame->fw / 4;
+	int fh = par->epd_frame->fh;
+	unsigned int change_count;
+	uint32_t *fxbuckets = par->fxbuckets;
+	uint32_t *fybuckets = par->fybuckets;
+
+	for (min_x = 0; min_x < fw; ++min_x) {
+		if(fxbuckets[min_x])
+			break;
+	}
+
+	for (max_x = fw - 1; max_x >= 0; --max_x) {
+		if(fxbuckets[max_x])
+			break;
+	}
+
+	for (min_y = 0; min_y < fh; min_y++) {
+		if(fybuckets[min_y])
+			break;
+	}
+
+	for (max_y = fh - 1; max_y >= 0; --max_y) {
+		if(fybuckets[max_y])
+			break;
+	}
+
+	if ((min_x > max_x) || (min_y > max_y))
+		change_count = 0;
+	else
+		change_count = (max_x - min_x + 1) * (max_y - min_y + 1) * 4;
+
+	dev_dbg(&par->pdev->dev, "min_x = %d, max_x = %d, min_y = %d, max_y = %d\n",
+			min_x, max_x, min_y, max_y);
+
+	return change_count;
+}
+
+static void metronomefb_dpy_update(struct metronomefb_par *par, int clear_all)
+{
+	unsigned int fbsize = par->info->fix.smem_len;
+	uint16_t cksum;
+	int m;
+
+	wait_for_rdy(par);
+
+	if (par->rotation == 0)
+		cksum = metronomefb_update_img_buffer_normal(par);
+	else
+		cksum = metronomefb_update_img_buffer_rotated(par);
+
+	*par->metromem_img_csum = __cpu_to_le16(cksum);
+
+	if (clear_all || par->is_first_update ||
+		(par->partial_updates_count == par->partial_autorefresh_interval)) {
+		m = WF_MODE_GC;
+		par->partial_updates_count = 0;
+	} else {
+		int change_count = metronomefb_get_change_count(par);
+		if (change_count < fbsize / 100 * par->manual_refresh_threshold)
+			m = WF_MODE_GU;
+		else
+			m = WF_MODE_GC;
+
+		dev_dbg(&par->pdev->dev, "change_count = %u, treshold = %u%% (%u pixels)\n",
+				change_count, par->manual_refresh_threshold,
+				fbsize / 100 * par->manual_refresh_threshold);
+		++par->partial_updates_count;
+	}
+
+	if (m != par->current_wf_mode)
+		load_waveform((u8 *) par->firmware->data, par->firmware->size,
+				m, par->current_wf_temp, par);
+
+	for (;;) {
+		if (likely(!check_err(par))) {
+			metronome_display_cmd(par);
+			break;
+		}
+
+		par->board->set_stdby(par, 0);
+		dev_warn(&par->pdev->dev, "Resetting Metronome\n");
+		par->board->set_rst(par, 0);
+		mdelay(1);
+		if (par->board->power_ctl)
+			par->board->power_ctl(par, METRONOME_POWER_OFF);
+
+		mdelay(1);
+		load_waveform((u8 *) par->firmware->data, par->firmware->size,
+				WF_MODE_GC, par->current_wf_temp, par);
+
+		if (par->board->power_ctl)
+			par->board->power_ctl(par, METRONOME_POWER_ON);
+		metronome_bootup(par);
+	}
+
+	par->is_first_update = 0;
 }
 
 /* this is called back from the deferred io workqueue */
 static void metronomefb_dpy_deferred_io(struct fb_info *info,
 				struct list_head *pagelist)
 {
-	u16 cksum;
-	struct page *cur;
-	struct fb_deferred_io *fbdefio = info->fbdefio;
 	struct metronomefb_par *par = info->par;
 
-	/* walk the written page list and swizzle the data */
-	list_for_each_entry(cur, &fbdefio->pagelist, lru) {
-		cksum = metronomefb_dpy_update_page(par,
-					(cur->index << PAGE_SHIFT));
-		par->metromem_img_csum -= par->csum_table[cur->index];
-		par->csum_table[cur->index] = cksum;
-		par->metromem_img_csum += cksum;
-	}
-
-	metronome_display_cmd(par);
+	/* We will update entire display because we need to change
+	 * 'previous image' field in pixels which was changed at
+	 * previous refresh
+	 */
+	mutex_lock(&par->lock);
+	metronomefb_dpy_update(par, 0);
+	mutex_unlock(&par->lock);
 }
 
 static void metronomefb_fillrect(struct fb_info *info,
@@ -488,8 +745,10 @@ static void metronomefb_fillrect(struct 
 {
 	struct metronomefb_par *par = info->par;
 
+	mutex_lock(&par->lock);
 	sys_fillrect(info, rect);
-	metronomefb_dpy_update(par);
+	metronomefb_dpy_update(par, 0);
+	mutex_unlock(&par->lock);
 }
 
 static void metronomefb_copyarea(struct fb_info *info,
@@ -497,8 +756,10 @@ static void metronomefb_copyarea(struct 
 {
 	struct metronomefb_par *par = info->par;
 
+	mutex_lock(&par->lock);
 	sys_copyarea(info, area);
-	metronomefb_dpy_update(par);
+	metronomefb_dpy_update(par, 0);
+	mutex_unlock(&par->lock);
 }
 
 static void metronomefb_imageblit(struct fb_info *info,
@@ -506,8 +767,10 @@ static void metronomefb_imageblit(struct
 {
 	struct metronomefb_par *par = info->par;
 
+	mutex_lock(&par->lock);
 	sys_imageblit(info, image);
-	metronomefb_dpy_update(par);
+	metronomefb_dpy_update(par, 0);
+	mutex_unlock(&par->lock);
 }
 
 /*
@@ -545,30 +808,229 @@ static ssize_t metronomefb_write(struct 
 
 	dst = (void __force *)(info->screen_base + p);
 
+	mutex_lock(&par->lock);
+
 	if (copy_from_user(dst, buf, count))
 		err = -EFAULT;
 
 	if  (!err)
 		*ppos += count;
 
-	metronomefb_dpy_update(par);
+	metronomefb_dpy_update(par, 0);
+	mutex_unlock(&par->lock);
 
 	return (err) ? err : count;
 }
 
+static int metronome_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+	struct metronomefb_par *par = info->par;
+
+	var->grayscale = 1;
+
+	switch (par->rotation) {
+	case FB_ROTATE_CW:
+	case FB_ROTATE_CCW:
+		if (par->epd_frame->fw == var->yres && par->epd_frame->fh == var->xres)
+			return 0;
+		break;
+	case FB_ROTATE_UD:
+	default:
+		if (par->epd_frame->fw == var->xres && par->epd_frame->fh == var->yres)
+			return 0;
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int metronomefb_set_par(struct fb_info *info)
+{
+	struct metronomefb_par *par = info->par;
+
+	par->rotation = (par->board->panel_rotation + info->var.rotate) % 4;
+
+	switch (par->rotation) {
+	case FB_ROTATE_CW:
+	case FB_ROTATE_CCW:
+		info->fix.line_length = par->epd_frame->fh;
+		break;
+	case FB_ROTATE_UD:
+	default:
+		info->fix.line_length = par->epd_frame->fw;
+		break;
+	}
+
+	mutex_lock(&par->lock);
+	metronomefb_dpy_update(info->par, 1);
+	mutex_unlock(&par->lock);
+
+	return 0;
+}
+
 static struct fb_ops metronomefb_ops = {
 	.owner		= THIS_MODULE,
 	.fb_write	= metronomefb_write,
 	.fb_fillrect	= metronomefb_fillrect,
 	.fb_copyarea	= metronomefb_copyarea,
 	.fb_imageblit	= metronomefb_imageblit,
+	.fb_check_var	= metronome_check_var,
+	.fb_set_par	= metronomefb_set_par,
 };
 
 static struct fb_deferred_io metronomefb_defio = {
-	.delay		= HZ,
+	.delay		= HZ / 4,
 	.deferred_io	= metronomefb_dpy_deferred_io,
 };
 
+static ssize_t metronomefb_defio_delay_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+
+	sprintf(buf, "%lu\n", info->fbdefio->delay * 1000 / HZ);
+	return strlen(buf) + 1;
+}
+
+static ssize_t metronomefb_defio_delay_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	char *after;
+	unsigned long state = simple_strtoul(buf, &after, 10);
+	size_t count = after - buf;
+	ssize_t ret = -EINVAL;
+
+	if (*after && isspace(*after))
+		count++;
+
+	state = state * HZ / 1000;
+
+	if (!state)
+		state = 1;
+
+	if (count == size) {
+		ret = count;
+		info->fbdefio->delay = state;
+	}
+
+	return ret;
+}
+
+static ssize_t metronomefb_manual_refresh_thr_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct metronomefb_par *par = info->par;
+
+	return sprintf(buf, "%u\n", par->manual_refresh_threshold);
+}
+
+static ssize_t metronomefb_manual_refresh_thr_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct metronomefb_par *par = info->par;
+	char *after;
+	unsigned long val = simple_strtoul(buf, &after, 10);
+	size_t count = after - buf;
+	ssize_t ret = -EINVAL;
+
+	if (*after && isspace(*after))
+		count++;
+
+	if (val > 100)
+		return -EINVAL;
+
+
+	if (count == size) {
+		ret = count;
+		par->manual_refresh_threshold = val;
+	}
+
+	return ret;
+}
+
+static ssize_t metronomefb_autorefresh_interval_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct metronomefb_par *par = info->par;
+
+	return sprintf(buf, "%u\n", par->partial_autorefresh_interval);
+}
+
+static ssize_t metronomefb_autorefresh_interval_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct metronomefb_par *par = info->par;
+	char *after;
+	unsigned long val = simple_strtoul(buf, &after, 10);
+	size_t count = after - buf;
+	ssize_t ret = -EINVAL;
+
+	if (*after && isspace(*after))
+		count++;
+
+	if (val > 100)
+		return -EINVAL;
+
+
+	if (count == size) {
+		ret = count;
+		par->partial_autorefresh_interval = val;
+	}
+
+	return ret;
+}
+
+static ssize_t metronomefb_temp_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct metronomefb_par *par = info->par;
+
+	return sprintf(buf, "%u\n", par->current_wf_temp);
+}
+
+static ssize_t metronomefb_temp_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct metronomefb_par *par = info->par;
+	char *after;
+	unsigned long val = simple_strtoul(buf, &after, 10);
+	size_t count = after - buf;
+	ssize_t ret = -EINVAL;
+
+	if (*after && isspace(*after))
+		count++;
+
+	if (val > 100)
+		return -EINVAL;
+
+
+	if (count == size) {
+		ret = count;
+		if (val != par->current_wf_temp)
+			load_waveform((u8 *) par->firmware->data, par->firmware->size,
+					par->current_wf_mode, val, par);
+	}
+
+	return ret;
+}
+
+DEVICE_ATTR(defio_delay, 0644,
+		metronomefb_defio_delay_show, metronomefb_defio_delay_store);
+DEVICE_ATTR(manual_refresh_threshold, 0644,
+		metronomefb_manual_refresh_thr_show, metronomefb_manual_refresh_thr_store);
+DEVICE_ATTR(temp, 0644,
+		metronomefb_temp_show, metronomefb_temp_store);
+DEVICE_ATTR(autorefresh_interval, 0644,
+		metronomefb_autorefresh_interval_show, metronomefb_autorefresh_interval_store);
+
+
 static int __devinit metronomefb_probe(struct platform_device *dev)
 {
 	struct fb_info *info;
@@ -607,6 +1069,9 @@ static int __devinit metronomefb_probe(s
 
 	panel_type = board->get_panel_type();
 	switch (panel_type) {
+	case 5:
+		epd_dt_index = 3;
+		break;
 	case 6:
 		epd_dt_index = 0;
 		break;
@@ -632,29 +1097,59 @@ static int __devinit metronomefb_probe(s
 	if (!videomemory)
 		goto err_fb_rel;
 
-	memset(videomemory, 0, videomemorysize);
+	memset(videomemory, 0xff, videomemorysize);
 
 	info->screen_base = (char __force __iomem *)videomemory;
 	info->fbops = &metronomefb_ops;
 
-	metronomefb_fix.line_length = fw;
-	metronomefb_var.xres = fw;
-	metronomefb_var.yres = fh;
-	metronomefb_var.xres_virtual = fw;
-	metronomefb_var.yres_virtual = fh;
 	info->var = metronomefb_var;
 	info->fix = metronomefb_fix;
-	info->fix.smem_len = videomemorysize;
+	switch (board->panel_rotation) {
+	case FB_ROTATE_CW:
+	case FB_ROTATE_CCW:
+		info->var.xres = fh;
+		info->var.yres = fw;
+		info->var.xres_virtual = fh;
+		info->var.yres_virtual = fw;
+		info->fix.line_length = fh;
+		break;
+	case FB_ROTATE_UD:
+	default:
+		info->var.xres = fw;
+		info->var.yres = fh;
+		info->var.xres_virtual = fw;
+		info->var.yres_virtual = fh;
+		info->fix.line_length = fw;
+		break;
+	}
+	info->fix.smem_len = fw * fh; /* Real size of image area */
 	par = info->par;
 	par->info = info;
 	par->board = board;
-	par->dt = epd_dt_index;
+	par->epd_frame = &epd_frame_table[epd_dt_index];
+	par->pdev = dev;
+
+	par->rotation = board->panel_rotation;
+
+	par->fxbuckets = kmalloc((fw / 4 + 1) * sizeof(*par->fxbuckets), GFP_KERNEL);
+	if (!par->fxbuckets)
+		goto err_vfree;
+
+	par->fybuckets = kmalloc(fh * sizeof(*par->fybuckets), GFP_KERNEL);
+	if (!par->fybuckets)
+		goto err_fxbuckets;
+
 	init_waitqueue_head(&par->waitq);
+	par->manual_refresh_threshold = DEFAULT_MANUAL_REFRESH_THRESHOLD;
+	par->partial_autorefresh_interval = 256;
+	par->partial_updates_count = 0;
+	par->is_first_update = 1;
+	mutex_init(&par->lock);
 
 	/* this table caches per page csum values. */
 	par->csum_table = vmalloc(videomemorysize/PAGE_SIZE);
 	if (!par->csum_table)
-		goto err_vfree;
+		goto err_fybuckets;
 
 	/* the physical framebuffer that we use is setup by
 	 * the platform device driver. It will provide us
@@ -684,13 +1179,19 @@ static int __devinit metronomefb_probe(s
 		goto err_csum_table;
 	}
 
-	retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, 3, 31,
+	retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, WF_MODE_GC, temp,
 				par);
-	release_firmware(fw_entry);
 	if (retval < 0) {
 		dev_err(&dev->dev, "Failed processing waveform\n");
 		goto err_csum_table;
 	}
+	par->firmware = fw_entry;
+
+	retval = board->setup_io(par);
+	if (retval) {
+		dev_err(&dev->dev, "metronomefb: setup_io() failed\n");
+		goto err_csum_table;
+	}
 
 	if (board->setup_irq(info))
 		goto err_csum_table;
@@ -712,7 +1213,7 @@ static int __devinit metronomefb_probe(s
 
 	/* set cmap */
 	for (i = 0; i < 8; i++)
-		info->cmap.red[i] = (((2*i)+1)*(0xFFFF))/16;
+		info->cmap.red[i] = ((2 * i + 1)*(0xFFFF))/16;
 	memcpy(info->cmap.green, info->cmap.red, sizeof(u16)*8);
 	memcpy(info->cmap.blue, info->cmap.red, sizeof(u16)*8);
 
@@ -722,18 +1223,47 @@ static int __devinit metronomefb_probe(s
 
 	platform_set_drvdata(dev, info);
 
-	dev_dbg(&dev->dev,
+	retval = device_create_file(info->dev, &dev_attr_defio_delay);
+	if (retval)
+		goto err_devattr_defio_delay;
+
+	retval = device_create_file(info->dev, &dev_attr_manual_refresh_threshold);
+	if (retval)
+		goto err_devattr_manual_refresh_thr;
+
+	retval = device_create_file(info->dev, &dev_attr_temp);
+	if (retval)
+		goto err_devattr_temp;
+
+	retval = device_create_file(info->dev, &dev_attr_autorefresh_interval);
+	if (retval)
+		goto err_devattr_autorefresh;
+
+	dev_info(&dev->dev,
 		"fb%d: Metronome frame buffer device, using %dK of video"
 		" memory\n", info->node, videomemorysize >> 10);
 
 	return 0;
 
+	device_remove_file(info->dev, &dev_attr_autorefresh_interval);
+err_devattr_autorefresh:
+	device_remove_file(info->dev, &dev_attr_temp);
+err_devattr_temp:
+	device_remove_file(info->dev, &dev_attr_manual_refresh_threshold);
+err_devattr_manual_refresh_thr:
+	device_remove_file(info->dev, &dev_attr_defio_delay);
+err_devattr_defio_delay:
+	unregister_framebuffer(info);
 err_cmap:
 	fb_dealloc_cmap(&info->cmap);
 err_free_irq:
 	board->cleanup(par);
 err_csum_table:
 	vfree(par->csum_table);
+err_fybuckets:
+	kfree(par->fybuckets);
+err_fxbuckets:
+	kfree(par->fxbuckets);
 err_vfree:
 	vfree(videomemory);
 err_fb_rel:
@@ -750,26 +1280,76 @@ static int __devexit metronomefb_remove(
 	if (info) {
 		struct metronomefb_par *par = info->par;
 
+		par->board->set_stdby(par, 0);
+		mdelay(1);
+		if (par->board->power_ctl)
+			par->board->power_ctl(par, METRONOME_POWER_OFF);
+
+		device_remove_file(info->dev, &dev_attr_autorefresh_interval);
+		device_remove_file(info->dev, &dev_attr_temp);
+		device_remove_file(info->dev, &dev_attr_manual_refresh_threshold);
+		device_remove_file(info->dev, &dev_attr_defio_delay);
 		unregister_framebuffer(info);
 		fb_deferred_io_cleanup(info);
 		fb_dealloc_cmap(&info->cmap);
 		par->board->cleanup(par);
 		vfree(par->csum_table);
+		kfree(par->fybuckets);
+		kfree(par->fxbuckets);
 		vfree((void __force *)info->screen_base);
 		module_put(par->board->owner);
+		release_firmware(par->firmware);
 		dev_dbg(&dev->dev, "calling release\n");
 		framebuffer_release(info);
 	}
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int metronomefb_suspend(struct platform_device *pdev, pm_message_t message)
+{
+	struct fb_info *info = platform_get_drvdata(pdev);
+	struct metronomefb_par *par = info->par;
+
+	par->board->set_stdby(par, 0);
+	par->board->set_rst(par, 0);
+	if (par->board->power_ctl)
+		par->board->power_ctl(par, METRONOME_POWER_OFF);
+
+
+	return 0;
+}
+
+static int metronomefb_resume(struct platform_device *pdev)
+{
+	struct fb_info *info = platform_get_drvdata(pdev);
+	struct metronomefb_par *par = info->par;
+
+	if (par->board->power_ctl)
+		par->board->power_ctl(par, METRONOME_POWER_ON);
+
+	mutex_lock(&par->lock);
+	metronome_bootup(par);
+	mutex_unlock(&par->lock);
+
+	return 0;
+}
+
+#else
+#define metronomefb_suspend NULL
+#define metronomefb_resume NULL
+#endif
+
+
 static struct platform_driver metronomefb_driver = {
-	.probe	= metronomefb_probe,
-	.remove = metronomefb_remove,
-	.driver	= {
-		.owner	= THIS_MODULE,
-		.name	= "metronomefb",
-	},
+	.driver		= {
+			.owner	= THIS_MODULE,
+			.name	= "metronomefb",
+			},
+	.probe		= metronomefb_probe,
+	.remove		= __devexit_p(metronomefb_remove),
+	.suspend	= metronomefb_suspend,
+	.resume		= metronomefb_resume,
 };
 
 static int __init metronomefb_init(void)
@@ -782,8 +1362,8 @@ static void __exit metronomefb_exit(void
 	platform_driver_unregister(&metronomefb_driver);
 }
 
-module_param(user_wfm_size, uint, 0);
-MODULE_PARM_DESC(user_wfm_size, "Set custom waveform size");
+module_param(temp, int, 0);
+MODULE_PARM_DESC(temp, "Set current temperature");
 
 module_init(metronomefb_init);
 module_exit(metronomefb_exit);
--- a/include/video/metronomefb.h
+++ b/include/video/metronomefb.h
@@ -17,7 +17,9 @@ struct metromem_cmd {
 	u16 opcode;
 	u16 args[((64-2)/2)];
 	u16 csum;
-};
+} __attribute__((packed));
+
+struct epd_frame;
 
 /* struct used by metronome. board specific stuff comes from *board */
 struct metronomefb_par {
@@ -27,19 +29,40 @@ struct metronomefb_par {
 	u16 *metromem_img_csum;
 	u16 *csum_table;
 	dma_addr_t metromem_dma;
+	const struct firmware *firmware;
 	struct fb_info *info;
 	struct metronome_board *board;
+	struct platform_device *pdev;
 	wait_queue_head_t waitq;
 	u8 frame_count;
 	int extra_size;
-	int dt;
+	int current_wf_mode;
+	int current_wf_temp;
+	unsigned int manual_refresh_threshold;
+	unsigned int partial_autorefresh_interval;
+	const struct epd_frame *epd_frame;
+	u32 *fxbuckets;
+	u32 *fybuckets;
+
+	int rotation;
+
+	unsigned int partial_updates_count;
+	unsigned is_first_update:1;
+
+	struct mutex lock;
 };
 
+#define METRONOME_POWER_OFF	0
+#define METRONOME_POWER_ON	1
+
 /* board specific routines and data */
 struct metronome_board {
 	struct module *owner; /* the platform device */
+	void (*power_ctl)(struct metronomefb_par *, int);
 	void (*set_rst)(struct metronomefb_par *, int);
 	void (*set_stdby)(struct metronomefb_par *, int);
+	int (*get_err)(struct metronomefb_par *);
+	int (*get_rdy)(struct metronomefb_par *);
 	void (*cleanup)(struct metronomefb_par *);
 	int (*met_wait_event)(struct metronomefb_par *);
 	int (*met_wait_event_intr)(struct metronomefb_par *);
@@ -47,11 +70,7 @@ struct metronome_board {
 	int (*setup_fb)(struct metronomefb_par *);
 	int (*setup_io)(struct metronomefb_par *);
 	int (*get_panel_type)(void);
-	unsigned char *metromem;
-	int fw;
-	int fh;
-	int wfm_size;
-	struct fb_info *host_fbinfo; /* the host LCD controller's fbi */
+	int panel_rotation;
 };
 
 #endif