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
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Frank Gevaerts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "storage.h"
#include "kernel.h"
#ifdef CONFIG_STORAGE_MULTI
#define DRIVER_MASK 0xff000000
#define DRIVER_OFFSET 24
#define DRIVE_MASK 0x00ff0000
#define DRIVE_OFFSET 16
#define PARTITION_MASK 0x0000ff00
static unsigned int storage_drivers[NUM_DRIVES];
static unsigned int num_drives;
#endif
#ifdef HAVE_IO_PRIORITY
/* Same for flash? */
#define STORAGE_MINIMUM_IDLE_TIME (HZ/10)
#define STORAGE_DELAY_UNIT (HZ/20)
static unsigned int storage_last_thread[NUM_DRIVES];
static unsigned int storage_last_activity[NUM_DRIVES];
static bool storage_should_wait(int drive, int prio)
{
int other_prio = thread_get_io_priority(storage_last_thread[drive]);
if(TIME_BEFORE(current_tick,storage_last_activity[drive]+STORAGE_MINIMUM_IDLE_TIME))
{
if(prio<=other_prio)
{
/* There is another active thread, but we have lower priority */
return false;
}
else
{
/* There is another active thread, but it has lower priority */
return true;
}
}
else
{
/* There's nothing going on anyway */
return false;
}
}
static void storage_wait_turn(IF_MD_NONVOID(int drive))
{
#ifndef HAVE_MULTIDRIVE
int drive=0;
#endif
int my_prio = thread_get_io_priority(thread_self());
int loops=my_prio;
while(storage_should_wait(drive, my_prio) && (loops--)>=0)
{
sleep(STORAGE_DELAY_UNIT);
}
storage_last_thread[drive] = thread_self();
storage_last_activity[drive] = current_tick;
}
#endif
int storage_read_sectors(IF_MD2(int drive,) unsigned long start, int count,
void* buf)
{
#ifdef HAVE_IO_PRIORITY
storage_wait_turn(IF_MD(drive));
#endif
#ifdef CONFIG_STORAGE_MULTI
int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
switch (driver)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
case STORAGE_ATA:
return ata_read_sectors(IF_MD2(ldrive,) start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
case STORAGE_MMC:
return mmc_read_sectors(IF_MD2(ldrive,) start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
case STORAGE_SD:
return sd_read_sectors(IF_MD2(ldrive,) start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
case STORAGE_NAND:
return nand_read_sectors(IF_MD2(ldrive,) start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
case STORAGE_RAMDISK:
return ramdisk_read_sectors(IF_MD2(ldrive,) start,count,buf);
#endif
}
return -1;
#else /* CONFIG_STORAGE_MULTI */
return STORAGE_FUNCTION(read_sectors)(IF_MD2(drive,)start,count,buf);
#endif /* CONFIG_STORAGE_MULTI */
}
int storage_write_sectors(IF_MD2(int drive,) unsigned long start, int count,
const void* buf)
{
#ifdef HAVE_IO_PRIORITY
storage_wait_turn(IF_MD(drive));
#endif
#ifdef CONFIG_STORAGE_MULTI
int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
switch (driver)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
case STORAGE_ATA:
return ata_write_sectors(IF_MD2(ldrive,)start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
case STORAGE_MMC:
return mmc_write_sectors(IF_MD2(ldrive,)start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
case STORAGE_SD:
return sd_write_sectors(IF_MD2(ldrive,)start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
case STORAGE_NAND:
return nand_write_sectors(IF_MD2(ldrive,)start,count,buf);
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
case STORAGE_RAMDISK:
return ramdisk_write_sectors(IF_MD2(ldrive,)start,count,buf);
#endif
}
return -1;
#else /* CONFIG_STORAGE_MULTI */
return STORAGE_FUNCTION(write_sectors)(IF_MD2(drive,)start,count,buf);
#endif /* CONFIG_STORAGE_MULTI */
}
#ifdef CONFIG_STORAGE_MULTI
#define DRIVER_MASK 0xff000000
#define DRIVER_OFFSET 24
#define DRIVE_MASK 0x00ff0000
#define DRIVE_OFFSET 16
#define PARTITION_MASK 0x0000ff00
static unsigned int storage_drivers[NUM_DRIVES];
static unsigned int num_drives;
int storage_num_drives(void)
{
return num_drives;
}
int storage_init(void)
{
int rc=0;
int i;
num_drives=0;
#if (CONFIG_STORAGE & STORAGE_ATA)
if ((rc=ata_init())) return rc;
int ata_drives = ata_num_drives(num_drives);
for (i=0; i<ata_drives; i++)
{
storage_drivers[num_drives++] =
(STORAGE_ATA<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
}
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
if ((rc=mmc_init())) return rc;
int mmc_drives = mmc_num_drives(num_drives);
for (i=0; i<mmc_drives ;i++)
{
storage_drivers[num_drives++] =
(STORAGE_MMC<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
}
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
if ((rc=sd_init())) return rc;
int sd_drives = sd_num_drives(num_drives);
for (i=0; i<sd_drives; i++)
{
storage_drivers[num_drives++] =
(STORAGE_SD<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
}
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
if ((rc=nand_init())) return rc;
int nand_drives = nand_num_drives(num_drives);
for (i=0; i<nand_drives; i++)
{
storage_drivers[num_drives++] =
(STORAGE_NAND<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
}
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
if ((rc=ramdisk_init())) return rc;
int ramdisk_drives = ramdisk_num_drives(num_drives);
for (i=0; i<ramdisk_drives; i++)
{
storage_drivers[num_drives++] =
(STORAGE_RAMDISK<<DRIVER_OFFSET) | (i << DRIVE_OFFSET);
}
#endif
return 0;
}
void storage_enable(bool on)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
ata_enable(on);
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
mmc_enable(on);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
sd_enable(on);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
nand_enable(on);
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
ramdisk_enable(on);
#endif
}
void storage_sleep(void)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
ata_sleep();
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
mmc_sleep();
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
sd_sleep();
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
nand_sleep();
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
ramdisk_sleep();
#endif
}
void storage_sleepnow(void)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
ata_sleepnow();
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
mmc_sleepnow();
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
//sd_sleepnow();
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
nand_sleepnow();
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
ramdisk_sleepnow();
#endif
}
bool storage_disk_is_active(void)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
if (ata_disk_is_active()) return true;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
if (mmc_disk_is_active()) return true;
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
//if (sd_disk_is_active()) return true;
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
//if (nand_disk_is_active()) return true;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
if (ramdisk_disk_is_active()) return true;
#endif
return false;
}
int storage_soft_reset(void)
{
int rc=0;
#if (CONFIG_STORAGE & STORAGE_ATA)
if ((rc=ata_soft_reset())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
if ((rc=mmc_soft_reset())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
//if ((rc=sd_soft_reset())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
//if ((rc=nand_soft_reset())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
if ((rc=ramdisk_soft_reset())) return rc;
#endif
return rc;
}
#ifdef HAVE_STORAGE_FLUSH
int storage_flush(void)
{
int rc=0;
#if (CONFIG_STORAGE & STORAGE_ATA)
//if ((rc=ata_flush())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
//if ((rc=mmc_flush())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
//if ((rc=sd_flush())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
if ((rc=nand_flush())) return rc;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
//if ((rc=ramdisk_flush())) return rc;
#endif
return rc;
}
#endif
void storage_spin(void)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
ata_spin();
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
mmc_spin();
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
sd_spin();
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
nand_spin();
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
ramdisk_spin();
#endif
}
void storage_spindown(int seconds)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
ata_spindown(seconds);
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
mmc_spindown(seconds);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
sd_spindown(seconds);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
nand_spindown(seconds);
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
ramdisk_spindown(seconds);
#endif
}
#if (CONFIG_LED == LED_REAL)
void storage_set_led_enabled(bool enabled)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
ata_set_led_enabled(enabled);
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
mmc_set_led_enabled(enabled);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
sd_set_led_enabled(enabled);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
nand_set_led_enabled(enabled);
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
ramdisk_set_led_enabled(enabled);
#endif
}
#endif /* CONFIG_LED == LED_REAL */
long storage_last_disk_activity(void)
{
long max=0;
long t;
#if (CONFIG_STORAGE & STORAGE_ATA)
t=ata_last_disk_activity();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
t=mmc_last_disk_activity();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
t=sd_last_disk_activity();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
t=nand_last_disk_activity();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
t=ramdisk_last_disk_activity();
if (t>max) max=t;
#endif
return max;
}
int storage_spinup_time(void)
{
int max=0;
int t;
#if (CONFIG_STORAGE & STORAGE_ATA)
t=ata_spinup_time();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
t=mmc_spinup_time();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
//t=sd_spinup_time();
//if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
t=nand_spinup_time();
if (t>max) max=t;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
t=ramdisk_spinup_time();
if (t>max) max=t;
#endif
return max;
}
#ifdef STORAGE_GET_INFO
void storage_get_info(int drive, struct storage_info *info)
{
int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
switch(driver)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
case STORAGE_ATA:
return ata_get_info(ldrive,info);
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
case STORAGE_MMC:
return mmc_get_info(ldrive,info);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
case STORAGE_SD:
return sd_get_info(ldrive,info);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
case STORAGE_NAND:
return nand_get_info(ldrive,info);
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
case STORAGE_RAMDISK:
return ramdisk_get_info(ldrive,info);
#endif
}
}
#endif /* STORAGE_GET_INFO */
#ifdef HAVE_HOTSWAP
bool storage_removable(int drive)
{
int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
switch(driver)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
case STORAGE_ATA:
return false;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
case STORAGE_MMC:
return mmc_removable(ldrive);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
case STORAGE_SD:
return sd_removable(ldrive);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
case STORAGE_NAND:
return false;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
case STORAGE_RAMDISK:
return false;
#endif
default:
return false;
}
}
bool storage_present(int drive)
{
int driver=(storage_drivers[drive] & DRIVER_MASK)>>DRIVER_OFFSET;
int ldrive=(storage_drivers[drive] & DRIVE_MASK)>>DRIVE_OFFSET;
switch(driver)
{
#if (CONFIG_STORAGE & STORAGE_ATA)
case STORAGE_ATA:
return true;
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
case STORAGE_MMC:
return mmc_present(ldrive);
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
case STORAGE_SD:
return sd_present(ldrive);
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
case STORAGE_NAND:
return true;
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
case STORAGE_RAMDISK:
return true;
#endif
default:
return false;
}
}
#endif
#endif /*CONFIG_STORAGE_MULTI*/
|
