aboutsummaryrefslogtreecommitdiff
path: root/arch/blackfin/include/asm/gpio.h
blob: ec2ab465709e59a9c510b49c75b4d9b0a8a2c787 (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
/*
 * File:         arch/blackfin/kernel/bfin_gpio.h
 * Based on:
 * Author:	 Michael Hennerich (hennerich@blackfin.uclinux.org)
 *
 * Created:
 * Description:
 *
 * Modified:
 *               Copyright 2004-2008 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * 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 program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

/*
*  Number     BF537/6/4    BF561    BF533/2/1
*             BF527/5/2
*
*  GPIO_0       PF0         PF0        PF0
*  GPIO_1       PF1         PF1        PF1
*  GPIO_2       PF2         PF2        PF2
*  GPIO_3       PF3         PF3        PF3
*  GPIO_4       PF4         PF4        PF4
*  GPIO_5       PF5         PF5        PF5
*  GPIO_6       PF6         PF6        PF6
*  GPIO_7       PF7         PF7        PF7
*  GPIO_8       PF8         PF8        PF8
*  GPIO_9       PF9         PF9        PF9
*  GPIO_10      PF10        PF10       PF10
*  GPIO_11      PF11        PF11       PF11
*  GPIO_12      PF12        PF12       PF12
*  GPIO_13      PF13        PF13       PF13
*  GPIO_14      PF14        PF14       PF14
*  GPIO_15      PF15        PF15       PF15
*  GPIO_16      PG0         PF16
*  GPIO_17      PG1         PF17
*  GPIO_18      PG2         PF18
*  GPIO_19      PG3         PF19
*  GPIO_20      PG4         PF20
*  GPIO_21      PG5         PF21
*  GPIO_22      PG6         PF22
*  GPIO_23      PG7         PF23
*  GPIO_24      PG8         PF24
*  GPIO_25      PG9         PF25
*  GPIO_26      PG10        PF26
*  GPIO_27      PG11        PF27
*  GPIO_28      PG12        PF28
*  GPIO_29      PG13        PF29
*  GPIO_30      PG14        PF30
*  GPIO_31      PG15        PF31
*  GPIO_32      PH0         PF32
*  GPIO_33      PH1         PF33
*  GPIO_34      PH2         PF34
*  GPIO_35      PH3         PF35
*  GPIO_36      PH4         PF36
*  GPIO_37      PH5         PF37
*  GPIO_38      PH6         PF38
*  GPIO_39      PH7         PF39
*  GPIO_40      PH8         PF40
*  GPIO_41      PH9         PF41
*  GPIO_42      PH10        PF42
*  GPIO_43      PH11        PF43
*  GPIO_44      PH12        PF44
*  GPIO_45      PH13        PF45
*  GPIO_46      PH14        PF46
*  GPIO_47      PH15        PF47
*/

#ifndef __ARCH_BLACKFIN_GPIO_H__
#define __ARCH_BLACKFIN_GPIO_H__

#define gpio_bank(x) 	((x) >> 4)
#define gpio_bit(x)  	(1<<((x) & 0xF))
#define gpio_sub_n(x) 	((x) & 0xF)

#define GPIO_BANKSIZE 	16
#define GPIO_BANK_NUM 	DIV_ROUND_UP(MAX_BLACKFIN_GPIOS, GPIO_BANKSIZE)

#define	GPIO_0	0
#define	GPIO_1	1
#define	GPIO_2	2
#define	GPIO_3	3
#define	GPIO_4	4
#define	GPIO_5	5
#define	GPIO_6	6
#define	GPIO_7	7
#define	GPIO_8	8
#define	GPIO_9	9
#define	GPIO_10	10
#define	GPIO_11	11
#define	GPIO_12	12
#define	GPIO_13	13
#define	GPIO_14	14
#define	GPIO_15	15
#define	GPIO_16	16
#define	GPIO_17	17
#define	GPIO_18	18
#define	GPIO_19	19
#define	GPIO_20	20
#define	GPIO_21	21
#define	GPIO_22	22
#define	GPIO_23	23
#define	GPIO_24	24
#define	GPIO_25	25
#define	GPIO_26	26
#define	GPIO_27	27
#define	GPIO_28	28
#define	GPIO_29	29
#define	GPIO_30	30
#define	GPIO_31	31
#define	GPIO_32	32
#define	GPIO_33	33
#define	GPIO_34	34
#define	GPIO_35	35
#define	GPIO_36	36
#define	GPIO_37	37
#define	GPIO_38	38
#define	GPIO_39	39
#define	GPIO_40	40
#define	GPIO_41	41
#define	GPIO_42	42
#define	GPIO_43	43
#define	GPIO_44	44
#define	GPIO_45	45
#define	GPIO_46	46
#define	GPIO_47	47


#define PERIPHERAL_USAGE 1
#define GPIO_USAGE 0

#if defined(BF518_FAMILY)
#define MAX_BLACKFIN_GPIOS 40

#define	GPIO_PF0	0
#define	GPIO_PF1	1
#define	GPIO_PF2	2
#define	GPIO_PF3	3
#define	GPIO_PF4	4
#define	GPIO_PF5	5
#define	GPIO_PF6	6
#define	GPIO_PF7	7
#define	GPIO_PF8	8
#define	GPIO_PF9	9
#define	GPIO_PF10	10
#define	GPIO_PF11	11
#define	GPIO_PF12	12
#define	GPIO_PF13	13
#define	GPIO_PF14	14
#define	GPIO_PF15	15
#define	GPIO_PG0	16
#define	GPIO_PG1	17
#define	GPIO_PG2	18
#define	GPIO_PG3	19
#define	GPIO_PG4	20
#define	GPIO_PG5	21
#define	GPIO_PG6	22
#define	GPIO_PG7	23
#define	GPIO_PG8	24
#define	GPIO_PG9	25
#define	GPIO_PG10      	26
#define	GPIO_PG11      	27
#define	GPIO_PG12      	28
#define	GPIO_PG13      	29
#define	GPIO_PG14      	30
#define	GPIO_PG15      	31
#define	GPIO_PH0	32
#define	GPIO_PH1	33
#define	GPIO_PH2	34
#define	GPIO_PH3	35
#define	GPIO_PH4	36
#define	GPIO_PH5	37
#define	GPIO_PH6	38
#define	GPIO_PH7	39

#define PORT_F GPIO_PF0
#define PORT_G GPIO_PG0
#define PORT_H GPIO_PH0

#endif


#ifdef BF533_FAMILY
#define MAX_BLACKFIN_GPIOS 16

#define	GPIO_PF0	0
#define	GPIO_PF1	1
#define	GPIO_PF2	2
#define	GPIO_PF3	3
#define	GPIO_PF4	4
#define	GPIO_PF5	5
#define	GPIO_PF6	6
#define	GPIO_PF7	7
#define	GPIO_PF8	8
#define	GPIO_PF9	9
#define	GPIO_PF10	10
#define	GPIO_PF11	11
#define	GPIO_PF12	12
#define	GPIO_PF13	13
#define	GPIO_PF14	14
#define	GPIO_PF15	15

#endif

#if defined(BF538_FAMILY)
	/* FIXME:
	 * For now only support PORTF GPIOs.
	 * PORT C,D and E are for peripheral usage only
	 */
#define MAX_BLACKFIN_GPIOS 16

#define	GPIO_PF0	0	/* PF */
#define	GPIO_PF1	1
#define	GPIO_PF2	2
#define	GPIO_PF3	3
#define	GPIO_PF4	4
#define	GPIO_PF5	5
#define	GPIO_PF6	6
#define	GPIO_PF7	7
#define	GPIO_PF8	8
#define	GPIO_PF9	9
#define	GPIO_PF10	10
#define	GPIO_PF11	11
#define	GPIO_PF12	12
#define	GPIO_PF13	13
#define	GPIO_PF14	14
#define	GPIO_PF15	15
#define	GPIO_PC0	16	/* PC */
#define	GPIO_PC1	17
#define	GPIO_PC4	20
#define	GPIO_PC5	21
#define	GPIO_PC6	22
#define	GPIO_PC7	23
#define	GPIO_PC8	24
#define	GPIO_PC9	25
#define	GPIO_PD0	32	/* PD */
#define	GPIO_PD1	33
#define	GPIO_PD2	34
#define	GPIO_PD3	35
#define	GPIO_PD4	36
#define	GPIO_PD5	37
#define	GPIO_PD6	38
#define	GPIO_PD7	39
#define	GPIO_PD8	40
#define	GPIO_PD9	41
#define	GPIO_PD10      	42
#define	GPIO_PD11      	43
#define	GPIO_PD12      	44
#define	GPIO_PD13      	45
#define	GPIO_PE0	48	/* PE */
#define	GPIO_PE1	49
#define	GPIO_PE2	50
#define	GPIO_PE3	51
#define	GPIO_PE4	52
#define	GPIO_PE5	53
#define	GPIO_PE6	54
#define	GPIO_PE7	55
#define	GPIO_PE8	56
#define	GPIO_PE9	57
#define	GPIO_PE10      	58
#define	GPIO_PE11      	59
#define	GPIO_PE12      	60
#define	GPIO_PE13      	61
#define	GPIO_PE14      	62
#define	GPIO_PE15      	63

#define PORT_F GPIO_PF0
#define PORT_C GPIO_PC0
#define PORT_D GPIO_PD0
#define PORT_E GPIO_PE0
#endif

#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
#define MAX_BLACKFIN_GPIOS 48

#define	GPIO_PF0	0
#define	GPIO_PF1	1
#define	GPIO_PF2	2
#define	GPIO_PF3	3
#define	GPIO_PF4	4
#define	GPIO_PF5	5
#define	GPIO_PF6	6
#define	GPIO_PF7	7
#define	GPIO_PF8	8
#define	GPIO_PF9	9
#define	GPIO_PF10	10
#define	GPIO_PF11	11
#define	GPIO_PF12	12
#define	GPIO_PF13	13
#define	GPIO_PF14	14
#define	GPIO_PF15	15
#define	GPIO_PG0	16
#define	GPIO_PG1	17
#define	GPIO_PG2	18
#define	GPIO_PG3	19
#define	GPIO_PG4	20
#define	GPIO_PG5	21
#define	GPIO_PG6	22
#define	GPIO_PG7	23
#define	GPIO_PG8	24
#define	GPIO_PG9	25
#define	GPIO_PG10      	26
#define	GPIO_PG11      	27
#define	GPIO_PG12      	28
#define	GPIO_PG13      	29
#define	GPIO_PG14      	30
#define	GPIO_PG15      	31
#define	GPIO_PH0	32
#define	GPIO_PH1	33
#define	GPIO_PH2	34
#define	GPIO_PH3	35
#define	GPIO_PH4	36
#define	GPIO_PH5	37
#define	GPIO_PH6	38
#define	GPIO_PH7	39
#define	GPIO_PH8	40
#define	GPIO_PH9	41
#define	GPIO_PH10      	42
#define	GPIO_PH11      	43
#define	GPIO_PH12      	44
#define	GPIO_PH13      	45
#define	GPIO_PH14      	46
#define	GPIO_PH15      	47

#define PORT_F GPIO_PF0
#define PORT_G GPIO_PG0
#define PORT_H GPIO_PH0

#endif

#ifdef BF548_FAMILY
#include <mach/gpio.h>
#endif

#ifdef BF561_FAMILY
#define MAX_BLACKFIN_GPIOS 48

#define	GPIO_PF0	0
#define	GPIO_PF1	1
#define	GPIO_PF2	2
#define	GPIO_PF3	3
#define	GPIO_PF4	4
#define	GPIO_PF5	5
#define	GPIO_PF6	6
#define	GPIO_PF7	7
#define	GPIO_PF8	8
#define	GPIO_PF9	9
#define	GPIO_PF10	10
#define	GPIO_PF11	11
#define	GPIO_PF12	12
#define	GPIO_PF13	13
#define	GPIO_PF14	14
#define	GPIO_PF15	15
#define	GPIO_PF16	16
#define	GPIO_PF17	17
#define	GPIO_PF18	18
#define	GPIO_PF19	19
#define	GPIO_PF20	20
#define	GPIO_PF21	21
#define	GPIO_PF22	22
#define	GPIO_PF23	23
#define	GPIO_PF24	24
#define	GPIO_PF25	25
#define	GPIO_PF26	26
#define	GPIO_PF27	27
#define	GPIO_PF28	28
#define	GPIO_PF29	29
#define	GPIO_PF30	30
#define	GPIO_PF31	31
#define	GPIO_PF32	32
#define	GPIO_PF33	33
#define	GPIO_PF34	34
#define	GPIO_PF35	35
#define	GPIO_PF36	36
#define	GPIO_PF37	37
#define	GPIO_PF38	38
#define	GPIO_PF39	39
#define	GPIO_PF40	40
#define	GPIO_PF41	41
#define	GPIO_PF42	42
#define	GPIO_PF43	43
#define	GPIO_PF44	44
#define	GPIO_PF45	45
#define	GPIO_PF46	46
#define	GPIO_PF47	47

#define PORT_FIO0 GPIO_0
#define PORT_FIO1 GPIO_16
#define PORT_FIO2 GPIO_32
#endif

#ifndef __ASSEMBLY__

/***********************************************************
*
* FUNCTIONS: Blackfin General Purpose Ports Access Functions
*
* INPUTS/OUTPUTS:
* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
*
*
* DESCRIPTION: These functions abstract direct register access
*              to Blackfin processor General Purpose
*              Ports Regsiters
*
* CAUTION: These functions do not belong to the GPIO Driver API
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/

#ifndef BF548_FAMILY
void set_gpio_dir(unsigned, unsigned short);
void set_gpio_inen(unsigned, unsigned short);
void set_gpio_polar(unsigned, unsigned short);
void set_gpio_edge(unsigned, unsigned short);
void set_gpio_both(unsigned, unsigned short);
void set_gpio_data(unsigned, unsigned short);
void set_gpio_maska(unsigned, unsigned short);
void set_gpio_maskb(unsigned, unsigned short);
void set_gpio_toggle(unsigned);
void set_gpiop_dir(unsigned, unsigned short);
void set_gpiop_inen(unsigned, unsigned short);
void set_gpiop_polar(unsigned, unsigned short);
void set_gpiop_edge(unsigned, unsigned short);
void set_gpiop_both(unsigned, unsigned short);
void set_gpiop_data(unsigned, unsigned short);
void set_gpiop_maska(unsigned, unsigned short);
void set_gpiop_maskb(unsigned, unsigned short);
unsigned short get_gpio_dir(unsigned);
unsigned short get_gpio_inen(unsigned);
unsigned short get_gpio_polar(unsigned);
unsigned short get_gpio_edge(unsigned);
unsigned short get_gpio_both(unsigned);
unsigned short get_gpio_maska(unsigned);
unsigned short get_gpio_maskb(unsigned);
unsigned short get_gpio_data(unsigned);
unsigned short get_gpiop_dir(unsigned);
unsigned short get_gpiop_inen(unsigned);
unsigned short get_gpiop_polar(unsigned);
unsigned short get_gpiop_edge(unsigned);
unsigned short get_gpiop_both(unsigned);
unsigned short get_gpiop_maska(unsigned);
unsigned short get_gpiop_maskb(unsigned);
unsigned short get_gpiop_data(unsigned);

struct gpio_port_t {
	unsigned short data;
	unsigned short dummy1;
	unsigned short data_clear;
	unsigned short dummy2;
	unsigned short data_set;
	unsigned short dummy3;
	unsigned short toggle;
	unsigned short dummy4;
	unsigned short maska;
	unsigned short dummy5;
	unsigned short maska_clear;
	unsigned short dummy6;
	unsigned short maska_set;
	unsigned short dummy7;
	unsigned short maska_toggle;
	unsigned short dummy8;
	unsigned short maskb;
	unsigned short dummy9;
	unsigned short maskb_clear;
	unsigned short dummy10;
	unsigned short maskb_set;
	unsigned short dummy11;
	unsigned short maskb_toggle;
	unsigned short dummy12;
	unsigned short dir;
	unsigned short dummy13;
	unsigned short polar;
	unsigned short dummy14;
	unsigned short edge;
	unsigned short dummy15;
	unsigned short both;
	unsigned short dummy16;
	unsigned short inen;
};
#endif

#ifdef CONFIG_PM

unsigned int bfin_pm_standby_setup(void);
void bfin_pm_standby_restore(void);

void bfin_gpio_pm_hibernate_restore(void);
void bfin_gpio_pm_hibernate_suspend(void);

#ifndef CONFIG_BF54x
#define PM_WAKE_RISING	0x1
#define PM_WAKE_FALLING	0x2
#define PM_WAKE_HIGH	0x4
#define PM_WAKE_LOW	0x8
#define PM_WAKE_BOTH_EDGES	(PM_WAKE_RISING | PM_WAKE_FALLING)
#define PM_WAKE_IGNORE	0xF0

int gpio_pm_wakeup_request(unsigned gpio, unsigned char type);
void gpio_pm_wakeup_free(unsigned gpio);

struct gpio_port_s {
	unsigned short data;
	unsigned short maska;
	unsigned short maskb;
	unsigned short dir;
	unsigned short polar;
	unsigned short edge;
	unsigned short both;
	unsigned short inen;

	unsigned short fer;
	unsigned short reserved;
	unsigned short mux;
};
#endif /*CONFIG_BF54x*/
#endif /*CONFIG_PM*/
/***********************************************************
*
* FUNCTIONS: Blackfin GPIO Driver
*
* INPUTS/OUTPUTS:
* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
*
*
* DESCRIPTION: Blackfin GPIO Driver API
*
* CAUTION:
*************************************************************
* MODIFICATION HISTORY :
**************************************************************/


int bfin_gpio_request(unsigned gpio, const char *label);
void bfin_gpio_free(unsigned gpio);
int bfin_gpio_direction_input(unsigned gpio);
int bfin_gpio_direction_output(unsigned gpio, int value);
int bfin_gpio_get_value(unsigned gpio);
void bfin_gpio_set_value(unsigned gpio, int value);

#ifndef BF548_FAMILY
#define bfin_gpio_set_value(gpio, value)    set_gpio_data(gpio, value)
#endif

#ifdef CONFIG_GPIOLIB
#include <asm-generic/gpio.h>		/* cansleep wrappers */

static inline int gpio_get_value(unsigned int gpio)
{
	if (gpio < MAX_BLACKFIN_GPIOS)
		return bfin_gpio_get_value(gpio);
	else
		return __gpio_get_value(gpio);
}

static inline void gpio_set_value(unsigned int gpio, int value)
{
	if (gpio < MAX_BLACKFIN_GPIOS)
		bfin_gpio_set_value(gpio, value);
	else
		__gpio_set_value(gpio, value);
}

static inline int gpio_cansleep(unsigned int gpio)
{
	return __gpio_cansleep(gpio);
}

#else /* !CONFIG_GPIOLIB */

static inline int gpio_request(unsigned gpio, const char *label)
{
	return bfin_gpio_request(gpio, label);
}

static inline void gpio_free(unsigned gpio)
{
	return bfin_gpio_free(gpio);
}

static inline int gpio_direction_input(unsigned gpio)
{
	return bfin_gpio_direction_input(gpio);
}

static inline int gpio_direction_output(unsigned gpio, int value)
{
	return bfin_gpio_direction_output(gpio, value);
}

static inline int gpio_get_value(unsigned gpio)
{
	return bfin_gpio_get_value(gpio);
}

static inline void gpio_set_value(unsigned gpio, int value)
{
	return bfin_gpio_set_value(gpio, value);
}

#include <asm-generic/gpio.h>		/* cansleep wrappers */
#endif	/* !CONFIG_GPIOLIB */
#include <asm/irq.h>

static inline int gpio_to_irq(unsigned gpio)
{
	return (gpio + GPIO_IRQ_BASE);
}

static inline int irq_to_gpio(unsigned irq)
{
	return (irq - GPIO_IRQ_BASE);
}

#endif /* __ASSEMBLY__ */

#endif /* __ARCH_BLACKFIN_GPIO_H__ */