summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/media/usb/go7007/s2250-board.c
blob: 1466db150d82cc93e91a14dd7c3c47851b330537 (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
/*
 * Copyright (C) 2008 Sensoray Company Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License (Version 2) as
 * published by the Free Software Foundation.
 *
 * 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.
 */

#include <linux/module.h>
#include <linux/usb.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <linux/slab.h>
#include <media/v4l2-device.h>
#include <media/v4l2-common.h>
#include <media/v4l2-subdev.h>
#include "go7007-priv.h"

MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
MODULE_LICENSE("GPL v2");

/*
 * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
 * Due to the unusual way these are accessed on this device we do not
 * reuse the i2c drivers, but instead they are implemented in this
 * driver. It would be nice to improve on this, though.
 */

#define TLV320_ADDRESS      0x34
#define VPX322_ADDR_ANALOGCONTROL1	0x02
#define VPX322_ADDR_BRIGHTNESS0		0x0127
#define VPX322_ADDR_BRIGHTNESS1		0x0131
#define VPX322_ADDR_CONTRAST0		0x0128
#define VPX322_ADDR_CONTRAST1		0x0132
#define VPX322_ADDR_HUE			0x00dc
#define VPX322_ADDR_SAT			0x0030

struct go7007_usb_board {
	unsigned int flags;
	struct go7007_board_info main_info;
};

struct go7007_usb {
	struct go7007_usb_board *board;
	struct mutex i2c_lock;
	struct usb_device *usbdev;
	struct urb *video_urbs[8];
	struct urb *audio_urbs[8];
	struct urb *intr_urb;
};

static unsigned char aud_regs[] = {
	0x1e, 0x00,
	0x00, 0x17,
	0x02, 0x17,
	0x04, 0xf9,
	0x06, 0xf9,
	0x08, 0x02,
	0x0a, 0x00,
	0x0c, 0x00,
	0x0a, 0x00,
	0x0c, 0x00,
	0x0e, 0x02,
	0x10, 0x00,
	0x12, 0x01,
	0x00, 0x00,
};


static unsigned char vid_regs[] = {
	0xF2, 0x0f,
	0xAA, 0x00,
	0xF8, 0xff,
	0x00, 0x00,
};

static u16 vid_regs_fp[] = {
	0x028, 0x067,
	0x120, 0x016,
	0x121, 0xcF2,
	0x122, 0x0F2,
	0x123, 0x00c,
	0x124, 0x2d0,
	0x125, 0x2e0,
	0x126, 0x004,
	0x128, 0x1E0,
	0x12A, 0x016,
	0x12B, 0x0F2,
	0x12C, 0x0F2,
	0x12D, 0x00c,
	0x12E, 0x2d0,
	0x12F, 0x2e0,
	0x130, 0x004,
	0x132, 0x1E0,
	0x140, 0x060,
	0x153, 0x00C,
	0x154, 0x200,
	0x150, 0x801,
	0x000, 0x000
};

/* PAL specific values */
static u16 vid_regs_fp_pal[] = {
	0x120, 0x017,
	0x121, 0xd22,
	0x122, 0x122,
	0x12A, 0x017,
	0x12B, 0x122,
	0x12C, 0x122,
	0x140, 0x060,
	0x000, 0x000,
};

struct s2250 {
	struct v4l2_subdev sd;
	struct v4l2_ctrl_handler hdl;
	v4l2_std_id std;
	int input;
	int brightness;
	int contrast;
	int saturation;
	int hue;
	int reg12b_val;
	int audio_input;
	struct i2c_client *audio;
};

static inline struct s2250 *to_state(struct v4l2_subdev *sd)
{
	return container_of(sd, struct s2250, sd);
}

/* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
	u16 value, u16 index, void *transfer_buffer, int length, int in)
{
	struct go7007_usb *usb = go->hpi_context;
	int timeout = 5000;

	if (in) {
		return usb_control_msg(usb->usbdev,
				usb_rcvctrlpipe(usb->usbdev, 0), request,
				USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
				value, index, transfer_buffer, length, timeout);
	} else {
		return usb_control_msg(usb->usbdev,
				usb_sndctrlpipe(usb->usbdev, 0), request,
				USB_TYPE_VENDOR | USB_RECIP_DEVICE,
				value, index, transfer_buffer, length, timeout);
	}
}
/* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/

static int write_reg(struct i2c_client *client, u8 reg, u8 value)
{
	struct go7007 *go = i2c_get_adapdata(client->adapter);
	struct go7007_usb *usb;
	int rc;
	int dev_addr = client->addr << 1;  /* firmware wants 8-bit address */
	u8 *buf;

	if (go == NULL)
		return -ENODEV;

	if (go->status == STATUS_SHUTDOWN)
		return -EBUSY;

	buf = kzalloc(16, GFP_KERNEL);
	if (buf == NULL)
		return -ENOMEM;

	usb = go->hpi_context;
	if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
		dev_info(&client->dev, "i2c lock failed\n");
		kfree(buf);
		return -EINTR;
	}
	rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
				       (reg<<8 | value),
				       buf,
				       16, 1);

	mutex_unlock(&usb->i2c_lock);
	kfree(buf);
	return rc;
}

static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
{
	struct go7007 *go = i2c_get_adapdata(client->adapter);
	struct go7007_usb *usb;
	int rc;
	u8 *buf;
	struct s2250 *dec = i2c_get_clientdata(client);

	if (go == NULL)
		return -ENODEV;

	if (go->status == STATUS_SHUTDOWN)
		return -EBUSY;

	buf = kzalloc(16, GFP_KERNEL);

	if (buf == NULL)
		return -ENOMEM;



	memset(buf, 0xcd, 6);

	usb = go->hpi_context;
	if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
		dev_info(&client->dev, "i2c lock failed\n");
		kfree(buf);
		return -EINTR;
	}
	rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
	mutex_unlock(&usb->i2c_lock);
	if (rc < 0) {
		kfree(buf);
		return rc;
	}

	if (buf[0] == 0) {
		unsigned int subaddr, val_read;

		subaddr = (buf[4] << 8) + buf[5];
		val_read = (buf[2] << 8) + buf[3];
		kfree(buf);
		if (val_read != val) {
			dev_info(&client->dev, "invalid fp write %x %x\n",
				 val_read, val);
			return -EFAULT;
		}
		if (subaddr != addr) {
			dev_info(&client->dev, "invalid fp write addr %x %x\n",
				 subaddr, addr);
			return -EFAULT;
		}
	} else {
		kfree(buf);
		return -EFAULT;
	}

	/* save last 12b value */
	if (addr == 0x12b)
		dec->reg12b_val = val;

	return 0;
}

static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
{
	struct go7007 *go = i2c_get_adapdata(client->adapter);
	struct go7007_usb *usb;
	int rc;
	u8 *buf;

	if (go == NULL)
		return -ENODEV;

	if (go->status == STATUS_SHUTDOWN)
		return -EBUSY;

	buf = kzalloc(16, GFP_KERNEL);

	if (buf == NULL)
		return -ENOMEM;



	memset(buf, 0xcd, 6);
	usb = go->hpi_context;
	if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
		dev_info(&client->dev, "i2c lock failed\n");
		kfree(buf);
		return -EINTR;
	}
	rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
	mutex_unlock(&usb->i2c_lock);
	if (rc < 0) {
		kfree(buf);
		return rc;
	}

	*val = (buf[0] << 8) | buf[1];
	kfree(buf);

	return 0;
}


static int write_regs(struct i2c_client *client, u8 *regs)
{
	int i;

	for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
		if (write_reg(client, regs[i], regs[i+1]) < 0) {
			dev_info(&client->dev, "failed\n");
			return -1;
		}
	}
	return 0;
}

static int write_regs_fp(struct i2c_client *client, u16 *regs)
{
	int i;

	for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
		if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
			dev_info(&client->dev, "failed fp\n");
			return -1;
		}
	}
	return 0;
}


/* ------------------------------------------------------------------------- */

static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
				 u32 config)
{
	struct s2250 *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	int vidsys;

	vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
	if (input == 0) {
		/* composite */
		write_reg_fp(client, 0x20, 0x020 | vidsys);
		write_reg_fp(client, 0x21, 0x662);
		write_reg_fp(client, 0x140, 0x060);
	} else if (input == 1) {
		/* S-Video */
		write_reg_fp(client, 0x20, 0x040 | vidsys);
		write_reg_fp(client, 0x21, 0x666);
		write_reg_fp(client, 0x140, 0x060);
	} else {
		return -EINVAL;
	}
	state->input = input;
	return 0;
}

static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
{
	struct s2250 *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	u16 vidsource;

	vidsource = (state->input == 1) ? 0x040 : 0x020;
	if (norm & V4L2_STD_625_50) {
		write_regs_fp(client, vid_regs_fp);
		write_regs_fp(client, vid_regs_fp_pal);
		write_reg_fp(client, 0x20, vidsource);
	} else {
		write_regs_fp(client, vid_regs_fp);
		write_reg_fp(client, 0x20, vidsource | 1);
	}
	state->std = norm;
	return 0;
}

static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
	struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
	u16 oldvalue;

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
		write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
			     ctrl->val | (oldvalue & ~0xff));
		read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
		write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
			     ctrl->val | (oldvalue & ~0xff));
		write_reg_fp(client, 0x140, 0x60);
		break;
	case V4L2_CID_CONTRAST:
		read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
		write_reg_fp(client, VPX322_ADDR_CONTRAST0,
			     ctrl->val | (oldvalue & ~0x3f));
		read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
		write_reg_fp(client, VPX322_ADDR_CONTRAST1,
			     ctrl->val | (oldvalue & ~0x3f));
		write_reg_fp(client, 0x140, 0x60);
		break;
	case V4L2_CID_SATURATION:
		write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
		break;
	case V4L2_CID_HUE:
		write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static int s2250_set_fmt(struct v4l2_subdev *sd,
		struct v4l2_subdev_pad_config *cfg,
		struct v4l2_subdev_format *format)
{
	struct v4l2_mbus_framefmt *fmt = &format->format;
	struct s2250 *state = to_state(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	if (format->pad)
		return -EINVAL;

	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
		return 0;

	if (fmt->height < 640) {
		write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
		write_reg_fp(client, 0x140, 0x060);
	} else {
		write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
		write_reg_fp(client, 0x140, 0x060);
	}
	return 0;
}

static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
				 u32 config)
{
	struct s2250 *state = to_state(sd);

	switch (input) {
	case 0:
		write_reg(state->audio, 0x08, 0x02); /* Line In */
		break;
	case 1:
		write_reg(state->audio, 0x08, 0x04); /* Mic */
		break;
	case 2:
		write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
		break;
	default:
		return -EINVAL;
	}
	state->audio_input = input;
	return 0;
}


static int s2250_log_status(struct v4l2_subdev *sd)
{
	struct s2250 *state = to_state(sd);

	v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
					state->std == V4L2_STD_PAL ? "PAL" :
					state->std == V4L2_STD_SECAM ? "SECAM" :
					"unknown");
	v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
					state->input == 1 ? "S-video" :
					"error");
	v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
					state->audio_input == 1 ? "Mic" :
					state->audio_input == 2 ? "Mic Boost" :
					"error");
	return v4l2_ctrl_subdev_log_status(sd);
}

/* --------------------------------------------------------------------------*/

static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
	.s_ctrl = s2250_s_ctrl,
};

static const struct v4l2_subdev_core_ops s2250_core_ops = {
	.log_status = s2250_log_status,
};

static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
	.s_routing = s2250_s_audio_routing,
};

static const struct v4l2_subdev_video_ops s2250_video_ops = {
	.s_std = s2250_s_std,
	.s_routing = s2250_s_video_routing,
};

static const struct v4l2_subdev_pad_ops s2250_pad_ops = {
	.set_fmt = s2250_set_fmt,
};

static const struct v4l2_subdev_ops s2250_ops = {
	.core = &s2250_core_ops,
	.audio = &s2250_audio_ops,
	.video = &s2250_video_ops,
	.pad = &s2250_pad_ops,
};

/* --------------------------------------------------------------------------*/

static int s2250_probe(struct i2c_client *client,
		       const struct i2c_device_id *id)
{
	struct i2c_client *audio;
	struct i2c_adapter *adapter = client->adapter;
	struct s2250 *state;
	struct v4l2_subdev *sd;
	u8 *data;
	struct go7007 *go = i2c_get_adapdata(adapter);
	struct go7007_usb *usb = go->hpi_context;

	audio = i2c_new_dummy(adapter, TLV320_ADDRESS >> 1);
	if (audio == NULL)
		return -ENOMEM;

	state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
	if (state == NULL) {
		i2c_unregister_device(audio);
		return -ENOMEM;
	}

	sd = &state->sd;
	v4l2_i2c_subdev_init(sd, client, &s2250_ops);

	v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
	       "Sensoray 2250/2251", client->addr, client->adapter->name);

	v4l2_ctrl_handler_init(&state->hdl, 4);
	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
		V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
		V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
		V4L2_CID_SATURATION, 0, 4094, 1, 2070);
	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
		V4L2_CID_HUE, -512, 511, 1, 0);
	sd->ctrl_handler = &state->hdl;
	if (state->hdl.error) {
		int err = state->hdl.error;

		v4l2_ctrl_handler_free(&state->hdl);
		kfree(state);
		return err;
	}

	state->std = V4L2_STD_NTSC;
	state->brightness = 50;
	state->contrast = 50;
	state->saturation = 50;
	state->hue = 0;
	state->audio = audio;

	/* initialize the audio */
	if (write_regs(audio, aud_regs) < 0) {
		dev_err(&client->dev, "error initializing audio\n");
		goto fail;
	}

	if (write_regs(client, vid_regs) < 0) {
		dev_err(&client->dev, "error initializing decoder\n");
		goto fail;
	}
	if (write_regs_fp(client, vid_regs_fp) < 0) {
		dev_err(&client->dev, "error initializing decoder\n");
		goto fail;
	}
	/* set default channel */
	/* composite */
	write_reg_fp(client, 0x20, 0x020 | 1);
	write_reg_fp(client, 0x21, 0x662);
	write_reg_fp(client, 0x140, 0x060);

	/* set default audio input */
	state->audio_input = 0;
	write_reg(client, 0x08, 0x02); /* Line In */

	if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
		data = kzalloc(16, GFP_KERNEL);
		if (data != NULL) {
			int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
						       data, 16, 1);

			if (rc > 0) {
				u8 mask;

				data[0] = 0;
				mask = 1<<5;
				data[0] &= ~mask;
				data[1] |= mask;
				go7007_usb_vendor_request(go, 0x40, 0,
							  (data[1]<<8)
							  + data[1],
							  data, 16, 0);
			}
			kfree(data);
		}
		mutex_unlock(&usb->i2c_lock);
	}

	v4l2_info(sd, "initialized successfully\n");
	return 0;

fail:
	i2c_unregister_device(audio);
	v4l2_ctrl_handler_free(&state->hdl);
	kfree(state);
	return -EIO;
}

static int s2250_remove(struct i2c_client *client)
{
	struct s2250 *state = to_state(i2c_get_clientdata(client));

	v4l2_device_unregister_subdev(&state->sd);
	v4l2_ctrl_handler_free(&state->hdl);
	kfree(state);
	return 0;
}

static const struct i2c_device_id s2250_id[] = {
	{ "s2250", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, s2250_id);

static struct i2c_driver s2250_driver = {
	.driver = {
		.name	= "s2250",
	},
	.probe		= s2250_probe,
	.remove		= s2250_remove,
	.id_table	= s2250_id,
};

module_i2c_driver(s2250_driver);