1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2008 Sensoray Company Inc.
4 */
5
6 #include <linux/module.h>
7 #include <linux/usb.h>
8 #include <linux/i2c.h>
9 #include <linux/videodev2.h>
10 #include <linux/slab.h>
11 #include <media/v4l2-device.h>
12 #include <media/v4l2-common.h>
13 #include <media/v4l2-subdev.h>
14 #include "go7007-priv.h"
15
16 MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
17 MODULE_LICENSE("GPL v2");
18
19 /*
20 * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
21 * Due to the unusual way these are accessed on this device we do not
22 * reuse the i2c drivers, but instead they are implemented in this
23 * driver. It would be nice to improve on this, though.
24 */
25
26 #define TLV320_ADDRESS 0x34
27 #define VPX322_ADDR_ANALOGCONTROL1 0x02
28 #define VPX322_ADDR_BRIGHTNESS0 0x0127
29 #define VPX322_ADDR_BRIGHTNESS1 0x0131
30 #define VPX322_ADDR_CONTRAST0 0x0128
31 #define VPX322_ADDR_CONTRAST1 0x0132
32 #define VPX322_ADDR_HUE 0x00dc
33 #define VPX322_ADDR_SAT 0x0030
34
35 struct go7007_usb_board {
36 unsigned int flags;
37 struct go7007_board_info main_info;
38 };
39
40 struct go7007_usb {
41 struct go7007_usb_board *board;
42 struct mutex i2c_lock;
43 struct usb_device *usbdev;
44 struct urb *video_urbs[8];
45 struct urb *audio_urbs[8];
46 struct urb *intr_urb;
47 };
48
49 static unsigned char aud_regs[] = {
50 0x1e, 0x00,
51 0x00, 0x17,
52 0x02, 0x17,
53 0x04, 0xf9,
54 0x06, 0xf9,
55 0x08, 0x02,
56 0x0a, 0x00,
57 0x0c, 0x00,
58 0x0a, 0x00,
59 0x0c, 0x00,
60 0x0e, 0x02,
61 0x10, 0x00,
62 0x12, 0x01,
63 0x00, 0x00,
64 };
65
66
67 static unsigned char vid_regs[] = {
68 0xF2, 0x0f,
69 0xAA, 0x00,
70 0xF8, 0xff,
71 0x00, 0x00,
72 };
73
74 static u16 vid_regs_fp[] = {
75 0x028, 0x067,
76 0x120, 0x016,
77 0x121, 0xcF2,
78 0x122, 0x0F2,
79 0x123, 0x00c,
80 0x124, 0x2d0,
81 0x125, 0x2e0,
82 0x126, 0x004,
83 0x128, 0x1E0,
84 0x12A, 0x016,
85 0x12B, 0x0F2,
86 0x12C, 0x0F2,
87 0x12D, 0x00c,
88 0x12E, 0x2d0,
89 0x12F, 0x2e0,
90 0x130, 0x004,
91 0x132, 0x1E0,
92 0x140, 0x060,
93 0x153, 0x00C,
94 0x154, 0x200,
95 0x150, 0x801,
96 0x000, 0x000
97 };
98
99 /* PAL specific values */
100 static u16 vid_regs_fp_pal[] = {
101 0x120, 0x017,
102 0x121, 0xd22,
103 0x122, 0x122,
104 0x12A, 0x017,
105 0x12B, 0x122,
106 0x12C, 0x122,
107 0x140, 0x060,
108 0x000, 0x000,
109 };
110
111 struct s2250 {
112 struct v4l2_subdev sd;
113 struct v4l2_ctrl_handler hdl;
114 v4l2_std_id std;
115 int input;
116 int brightness;
117 int contrast;
118 int saturation;
119 int hue;
120 int reg12b_val;
121 int audio_input;
122 struct i2c_client *audio;
123 };
124
to_state(struct v4l2_subdev * sd)125 static inline struct s2250 *to_state(struct v4l2_subdev *sd)
126 {
127 return container_of(sd, struct s2250, sd);
128 }
129
130 /* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
go7007_usb_vendor_request(struct go7007 * go,u16 request,u16 value,u16 index,void * transfer_buffer,int length,int in)131 static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
132 u16 value, u16 index, void *transfer_buffer, int length, int in)
133 {
134 struct go7007_usb *usb = go->hpi_context;
135 int timeout = 5000;
136
137 if (in) {
138 return usb_control_msg(usb->usbdev,
139 usb_rcvctrlpipe(usb->usbdev, 0), request,
140 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
141 value, index, transfer_buffer, length, timeout);
142 } else {
143 return usb_control_msg(usb->usbdev,
144 usb_sndctrlpipe(usb->usbdev, 0), request,
145 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
146 value, index, transfer_buffer, length, timeout);
147 }
148 }
149 /* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
150
write_reg(struct i2c_client * client,u8 reg,u8 value)151 static int write_reg(struct i2c_client *client, u8 reg, u8 value)
152 {
153 struct go7007 *go = i2c_get_adapdata(client->adapter);
154 struct go7007_usb *usb;
155 int rc;
156 int dev_addr = client->addr << 1; /* firmware wants 8-bit address */
157 u8 *buf;
158
159 if (go == NULL)
160 return -ENODEV;
161
162 if (go->status == STATUS_SHUTDOWN)
163 return -EBUSY;
164
165 buf = kzalloc(16, GFP_KERNEL);
166 if (buf == NULL)
167 return -ENOMEM;
168
169 usb = go->hpi_context;
170 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
171 dev_info(&client->dev, "i2c lock failed\n");
172 kfree(buf);
173 return -EINTR;
174 }
175 rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
176 (reg<<8 | value),
177 buf,
178 16, 1);
179
180 mutex_unlock(&usb->i2c_lock);
181 kfree(buf);
182 return rc;
183 }
184
write_reg_fp(struct i2c_client * client,u16 addr,u16 val)185 static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
186 {
187 struct go7007 *go = i2c_get_adapdata(client->adapter);
188 struct go7007_usb *usb;
189 int rc;
190 u8 *buf;
191 struct s2250 *dec = i2c_get_clientdata(client);
192
193 if (go == NULL)
194 return -ENODEV;
195
196 if (go->status == STATUS_SHUTDOWN)
197 return -EBUSY;
198
199 buf = kzalloc(16, GFP_KERNEL);
200
201 if (buf == NULL)
202 return -ENOMEM;
203
204
205
206 memset(buf, 0xcd, 6);
207
208 usb = go->hpi_context;
209 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
210 dev_info(&client->dev, "i2c lock failed\n");
211 kfree(buf);
212 return -EINTR;
213 }
214 rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
215 mutex_unlock(&usb->i2c_lock);
216 if (rc < 0) {
217 kfree(buf);
218 return rc;
219 }
220
221 if (buf[0] == 0) {
222 unsigned int subaddr, val_read;
223
224 subaddr = (buf[4] << 8) + buf[5];
225 val_read = (buf[2] << 8) + buf[3];
226 kfree(buf);
227 if (val_read != val) {
228 dev_info(&client->dev, "invalid fp write %x %x\n",
229 val_read, val);
230 return -EFAULT;
231 }
232 if (subaddr != addr) {
233 dev_info(&client->dev, "invalid fp write addr %x %x\n",
234 subaddr, addr);
235 return -EFAULT;
236 }
237 } else {
238 kfree(buf);
239 return -EFAULT;
240 }
241
242 /* save last 12b value */
243 if (addr == 0x12b)
244 dec->reg12b_val = val;
245
246 return 0;
247 }
248
read_reg_fp(struct i2c_client * client,u16 addr,u16 * val)249 static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
250 {
251 struct go7007 *go = i2c_get_adapdata(client->adapter);
252 struct go7007_usb *usb;
253 int rc;
254 u8 *buf;
255
256 if (go == NULL)
257 return -ENODEV;
258
259 if (go->status == STATUS_SHUTDOWN)
260 return -EBUSY;
261
262 buf = kzalloc(16, GFP_KERNEL);
263
264 if (buf == NULL)
265 return -ENOMEM;
266
267
268
269 memset(buf, 0xcd, 6);
270 usb = go->hpi_context;
271 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
272 dev_info(&client->dev, "i2c lock failed\n");
273 kfree(buf);
274 return -EINTR;
275 }
276 rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
277 mutex_unlock(&usb->i2c_lock);
278 if (rc < 0) {
279 kfree(buf);
280 return rc;
281 }
282
283 *val = (buf[0] << 8) | buf[1];
284 kfree(buf);
285
286 return 0;
287 }
288
289
write_regs(struct i2c_client * client,u8 * regs)290 static int write_regs(struct i2c_client *client, u8 *regs)
291 {
292 int i;
293
294 for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
295 if (write_reg(client, regs[i], regs[i+1]) < 0) {
296 dev_info(&client->dev, "failed\n");
297 return -1;
298 }
299 }
300 return 0;
301 }
302
write_regs_fp(struct i2c_client * client,u16 * regs)303 static int write_regs_fp(struct i2c_client *client, u16 *regs)
304 {
305 int i;
306
307 for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
308 if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
309 dev_info(&client->dev, "failed fp\n");
310 return -1;
311 }
312 }
313 return 0;
314 }
315
316
317 /* ------------------------------------------------------------------------- */
318
s2250_s_video_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)319 static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
320 u32 config)
321 {
322 struct s2250 *state = to_state(sd);
323 struct i2c_client *client = v4l2_get_subdevdata(sd);
324 int vidsys;
325
326 vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
327 if (input == 0) {
328 /* composite */
329 write_reg_fp(client, 0x20, 0x020 | vidsys);
330 write_reg_fp(client, 0x21, 0x662);
331 write_reg_fp(client, 0x140, 0x060);
332 } else if (input == 1) {
333 /* S-Video */
334 write_reg_fp(client, 0x20, 0x040 | vidsys);
335 write_reg_fp(client, 0x21, 0x666);
336 write_reg_fp(client, 0x140, 0x060);
337 } else {
338 return -EINVAL;
339 }
340 state->input = input;
341 return 0;
342 }
343
s2250_s_std(struct v4l2_subdev * sd,v4l2_std_id norm)344 static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
345 {
346 struct s2250 *state = to_state(sd);
347 struct i2c_client *client = v4l2_get_subdevdata(sd);
348 u16 vidsource;
349
350 vidsource = (state->input == 1) ? 0x040 : 0x020;
351 if (norm & V4L2_STD_625_50) {
352 write_regs_fp(client, vid_regs_fp);
353 write_regs_fp(client, vid_regs_fp_pal);
354 write_reg_fp(client, 0x20, vidsource);
355 } else {
356 write_regs_fp(client, vid_regs_fp);
357 write_reg_fp(client, 0x20, vidsource | 1);
358 }
359 state->std = norm;
360 return 0;
361 }
362
s2250_s_ctrl(struct v4l2_ctrl * ctrl)363 static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
364 {
365 struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
366 struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
367 u16 oldvalue;
368
369 switch (ctrl->id) {
370 case V4L2_CID_BRIGHTNESS:
371 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
372 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
373 ctrl->val | (oldvalue & ~0xff));
374 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
375 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
376 ctrl->val | (oldvalue & ~0xff));
377 write_reg_fp(client, 0x140, 0x60);
378 break;
379 case V4L2_CID_CONTRAST:
380 read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
381 write_reg_fp(client, VPX322_ADDR_CONTRAST0,
382 ctrl->val | (oldvalue & ~0x3f));
383 read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
384 write_reg_fp(client, VPX322_ADDR_CONTRAST1,
385 ctrl->val | (oldvalue & ~0x3f));
386 write_reg_fp(client, 0x140, 0x60);
387 break;
388 case V4L2_CID_SATURATION:
389 write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
390 break;
391 case V4L2_CID_HUE:
392 write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
393 break;
394 default:
395 return -EINVAL;
396 }
397 return 0;
398 }
399
s2250_set_fmt(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * format)400 static int s2250_set_fmt(struct v4l2_subdev *sd,
401 struct v4l2_subdev_pad_config *cfg,
402 struct v4l2_subdev_format *format)
403 {
404 struct v4l2_mbus_framefmt *fmt = &format->format;
405 struct s2250 *state = to_state(sd);
406 struct i2c_client *client = v4l2_get_subdevdata(sd);
407
408 if (format->pad)
409 return -EINVAL;
410
411 if (format->which == V4L2_SUBDEV_FORMAT_TRY)
412 return 0;
413
414 if (fmt->height < 640) {
415 write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
416 write_reg_fp(client, 0x140, 0x060);
417 } else {
418 write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
419 write_reg_fp(client, 0x140, 0x060);
420 }
421 return 0;
422 }
423
s2250_s_audio_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)424 static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
425 u32 config)
426 {
427 struct s2250 *state = to_state(sd);
428
429 switch (input) {
430 case 0:
431 write_reg(state->audio, 0x08, 0x02); /* Line In */
432 break;
433 case 1:
434 write_reg(state->audio, 0x08, 0x04); /* Mic */
435 break;
436 case 2:
437 write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
438 break;
439 default:
440 return -EINVAL;
441 }
442 state->audio_input = input;
443 return 0;
444 }
445
446
s2250_log_status(struct v4l2_subdev * sd)447 static int s2250_log_status(struct v4l2_subdev *sd)
448 {
449 struct s2250 *state = to_state(sd);
450
451 v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
452 state->std == V4L2_STD_PAL ? "PAL" :
453 state->std == V4L2_STD_SECAM ? "SECAM" :
454 "unknown");
455 v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
456 state->input == 1 ? "S-video" :
457 "error");
458 v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
459 state->audio_input == 1 ? "Mic" :
460 state->audio_input == 2 ? "Mic Boost" :
461 "error");
462 return v4l2_ctrl_subdev_log_status(sd);
463 }
464
465 /* --------------------------------------------------------------------------*/
466
467 static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
468 .s_ctrl = s2250_s_ctrl,
469 };
470
471 static const struct v4l2_subdev_core_ops s2250_core_ops = {
472 .log_status = s2250_log_status,
473 };
474
475 static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
476 .s_routing = s2250_s_audio_routing,
477 };
478
479 static const struct v4l2_subdev_video_ops s2250_video_ops = {
480 .s_std = s2250_s_std,
481 .s_routing = s2250_s_video_routing,
482 };
483
484 static const struct v4l2_subdev_pad_ops s2250_pad_ops = {
485 .set_fmt = s2250_set_fmt,
486 };
487
488 static const struct v4l2_subdev_ops s2250_ops = {
489 .core = &s2250_core_ops,
490 .audio = &s2250_audio_ops,
491 .video = &s2250_video_ops,
492 .pad = &s2250_pad_ops,
493 };
494
495 /* --------------------------------------------------------------------------*/
496
s2250_probe(struct i2c_client * client,const struct i2c_device_id * id)497 static int s2250_probe(struct i2c_client *client,
498 const struct i2c_device_id *id)
499 {
500 struct i2c_client *audio;
501 struct i2c_adapter *adapter = client->adapter;
502 struct s2250 *state;
503 struct v4l2_subdev *sd;
504 u8 *data;
505 struct go7007 *go = i2c_get_adapdata(adapter);
506 struct go7007_usb *usb = go->hpi_context;
507
508 audio = i2c_new_dummy_device(adapter, TLV320_ADDRESS >> 1);
509 if (IS_ERR(audio))
510 return PTR_ERR(audio);
511
512 state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
513 if (state == NULL) {
514 i2c_unregister_device(audio);
515 return -ENOMEM;
516 }
517
518 sd = &state->sd;
519 v4l2_i2c_subdev_init(sd, client, &s2250_ops);
520
521 v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
522 "Sensoray 2250/2251", client->addr, client->adapter->name);
523
524 v4l2_ctrl_handler_init(&state->hdl, 4);
525 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
526 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
527 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
528 V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
529 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
530 V4L2_CID_SATURATION, 0, 4094, 1, 2070);
531 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
532 V4L2_CID_HUE, -512, 511, 1, 0);
533 sd->ctrl_handler = &state->hdl;
534 if (state->hdl.error) {
535 int err = state->hdl.error;
536
537 v4l2_ctrl_handler_free(&state->hdl);
538 kfree(state);
539 return err;
540 }
541
542 state->std = V4L2_STD_NTSC;
543 state->brightness = 50;
544 state->contrast = 50;
545 state->saturation = 50;
546 state->hue = 0;
547 state->audio = audio;
548
549 /* initialize the audio */
550 if (write_regs(audio, aud_regs) < 0) {
551 dev_err(&client->dev, "error initializing audio\n");
552 goto fail;
553 }
554
555 if (write_regs(client, vid_regs) < 0) {
556 dev_err(&client->dev, "error initializing decoder\n");
557 goto fail;
558 }
559 if (write_regs_fp(client, vid_regs_fp) < 0) {
560 dev_err(&client->dev, "error initializing decoder\n");
561 goto fail;
562 }
563 /* set default channel */
564 /* composite */
565 write_reg_fp(client, 0x20, 0x020 | 1);
566 write_reg_fp(client, 0x21, 0x662);
567 write_reg_fp(client, 0x140, 0x060);
568
569 /* set default audio input */
570 state->audio_input = 0;
571 write_reg(client, 0x08, 0x02); /* Line In */
572
573 if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
574 data = kzalloc(16, GFP_KERNEL);
575 if (data != NULL) {
576 int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
577 data, 16, 1);
578
579 if (rc > 0) {
580 u8 mask;
581
582 data[0] = 0;
583 mask = 1<<5;
584 data[0] &= ~mask;
585 data[1] |= mask;
586 go7007_usb_vendor_request(go, 0x40, 0,
587 (data[1]<<8)
588 + data[1],
589 data, 16, 0);
590 }
591 kfree(data);
592 }
593 mutex_unlock(&usb->i2c_lock);
594 }
595
596 v4l2_info(sd, "initialized successfully\n");
597 return 0;
598
599 fail:
600 i2c_unregister_device(audio);
601 v4l2_ctrl_handler_free(&state->hdl);
602 kfree(state);
603 return -EIO;
604 }
605
s2250_remove(struct i2c_client * client)606 static int s2250_remove(struct i2c_client *client)
607 {
608 struct s2250 *state = to_state(i2c_get_clientdata(client));
609
610 v4l2_device_unregister_subdev(&state->sd);
611 v4l2_ctrl_handler_free(&state->hdl);
612 kfree(state);
613 return 0;
614 }
615
616 static const struct i2c_device_id s2250_id[] = {
617 { "s2250", 0 },
618 { }
619 };
620 MODULE_DEVICE_TABLE(i2c, s2250_id);
621
622 static struct i2c_driver s2250_driver = {
623 .driver = {
624 .name = "s2250",
625 },
626 .probe = s2250_probe,
627 .remove = s2250_remove,
628 .id_table = s2250_id,
629 };
630
631 module_i2c_driver(s2250_driver);
632
