1 /*
2 * Copyright (C) 2005-2006 Micronas USA Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License (Version 2) as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software Foundation,
15 * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
16 */
17
18 #include <linux/module.h>
19 #include <linux/init.h>
20 #include <linux/delay.h>
21 #include <linux/sched.h>
22 #include <linux/spinlock.h>
23 #include <linux/unistd.h>
24 #include <linux/time.h>
25 #include <linux/mm.h>
26 #include <linux/vmalloc.h>
27 #include <linux/device.h>
28 #include <linux/i2c.h>
29 #include <linux/firmware.h>
30 #include <linux/mutex.h>
31 #include <linux/uaccess.h>
32 #include <linux/slab.h>
33 #include <linux/videodev2.h>
34 #include <media/tuner.h>
35 #include <media/v4l2-common.h>
36
37 #include "go7007-priv.h"
38
39 /*
40 * Wait for an interrupt to be delivered from the GO7007SB and return
41 * the associated value and data.
42 *
43 * Must be called with the hw_lock held.
44 */
go7007_read_interrupt(struct go7007 * go,u16 * value,u16 * data)45 int go7007_read_interrupt(struct go7007 *go, u16 *value, u16 *data)
46 {
47 go->interrupt_available = 0;
48 go->hpi_ops->read_interrupt(go);
49 if (wait_event_timeout(go->interrupt_waitq,
50 go->interrupt_available, 5*HZ) < 0) {
51 v4l2_err(&go->v4l2_dev, "timeout waiting for read interrupt\n");
52 return -1;
53 }
54 if (!go->interrupt_available)
55 return -1;
56 go->interrupt_available = 0;
57 *value = go->interrupt_value & 0xfffe;
58 *data = go->interrupt_data;
59 return 0;
60 }
61 EXPORT_SYMBOL(go7007_read_interrupt);
62
63 /*
64 * Read a register/address on the GO7007SB.
65 *
66 * Must be called with the hw_lock held.
67 */
go7007_read_addr(struct go7007 * go,u16 addr,u16 * data)68 int go7007_read_addr(struct go7007 *go, u16 addr, u16 *data)
69 {
70 int count = 100;
71 u16 value;
72
73 if (go7007_write_interrupt(go, 0x0010, addr) < 0)
74 return -EIO;
75 while (count-- > 0) {
76 if (go7007_read_interrupt(go, &value, data) == 0 &&
77 value == 0xa000)
78 return 0;
79 }
80 return -EIO;
81 }
82 EXPORT_SYMBOL(go7007_read_addr);
83
84 /*
85 * Send the boot firmware to the encoder, which just wakes it up and lets
86 * us talk to the GPIO pins and on-board I2C adapter.
87 *
88 * Must be called with the hw_lock held.
89 */
go7007_load_encoder(struct go7007 * go)90 static int go7007_load_encoder(struct go7007 *go)
91 {
92 const struct firmware *fw_entry;
93 char fw_name[] = "go7007/go7007fw.bin";
94 void *bounce;
95 int fw_len, rv = 0;
96 u16 intr_val, intr_data;
97
98 if (go->boot_fw == NULL) {
99 if (request_firmware(&fw_entry, fw_name, go->dev)) {
100 v4l2_err(go, "unable to load firmware from file \"%s\"\n", fw_name);
101 return -1;
102 }
103 if (fw_entry->size < 16 || memcmp(fw_entry->data, "WISGO7007FW", 11)) {
104 v4l2_err(go, "file \"%s\" does not appear to be go7007 firmware\n", fw_name);
105 release_firmware(fw_entry);
106 return -1;
107 }
108 fw_len = fw_entry->size - 16;
109 bounce = kmemdup(fw_entry->data + 16, fw_len, GFP_KERNEL);
110 if (bounce == NULL) {
111 v4l2_err(go, "unable to allocate %d bytes for firmware transfer\n", fw_len);
112 release_firmware(fw_entry);
113 return -1;
114 }
115 release_firmware(fw_entry);
116 go->boot_fw_len = fw_len;
117 go->boot_fw = bounce;
118 }
119 if (go7007_interface_reset(go) < 0 ||
120 go7007_send_firmware(go, go->boot_fw, go->boot_fw_len) < 0 ||
121 go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
122 (intr_val & ~0x1) != 0x5a5a) {
123 v4l2_err(go, "error transferring firmware\n");
124 rv = -1;
125 }
126 return rv;
127 }
128
129 MODULE_FIRMWARE("go7007/go7007fw.bin");
130
131 /*
132 * Boot the encoder and register the I2C adapter if requested. Do the
133 * minimum initialization necessary, since the board-specific code may
134 * still need to probe the board ID.
135 *
136 * Must NOT be called with the hw_lock held.
137 */
go7007_boot_encoder(struct go7007 * go,int init_i2c)138 int go7007_boot_encoder(struct go7007 *go, int init_i2c)
139 {
140 int ret;
141
142 mutex_lock(&go->hw_lock);
143 ret = go7007_load_encoder(go);
144 mutex_unlock(&go->hw_lock);
145 if (ret < 0)
146 return -1;
147 if (!init_i2c)
148 return 0;
149 if (go7007_i2c_init(go) < 0)
150 return -1;
151 go->i2c_adapter_online = 1;
152 return 0;
153 }
154 EXPORT_SYMBOL(go7007_boot_encoder);
155
156 /*
157 * Configure any hardware-related registers in the GO7007, such as GPIO
158 * pins and bus parameters, which are board-specific. This assumes
159 * the boot firmware has already been downloaded.
160 *
161 * Must be called with the hw_lock held.
162 */
go7007_init_encoder(struct go7007 * go)163 static int go7007_init_encoder(struct go7007 *go)
164 {
165 if (go->board_info->audio_flags & GO7007_AUDIO_I2S_MASTER) {
166 go7007_write_addr(go, 0x1000, 0x0811);
167 go7007_write_addr(go, 0x1000, 0x0c11);
168 }
169 switch (go->board_id) {
170 case GO7007_BOARDID_MATRIX_REV:
171 /* Set GPIO pin 0 to be an output (audio clock control) */
172 go7007_write_addr(go, 0x3c82, 0x0001);
173 go7007_write_addr(go, 0x3c80, 0x00fe);
174 break;
175 case GO7007_BOARDID_ADLINK_MPG24:
176 /* set GPIO5 to be an output, currently low */
177 go7007_write_addr(go, 0x3c82, 0x0000);
178 go7007_write_addr(go, 0x3c80, 0x00df);
179 break;
180 case GO7007_BOARDID_ADS_USBAV_709:
181 /* GPIO pin 0: audio clock control */
182 /* pin 2: TW9906 reset */
183 /* pin 3: capture LED */
184 go7007_write_addr(go, 0x3c82, 0x000d);
185 go7007_write_addr(go, 0x3c80, 0x00f2);
186 break;
187 }
188 return 0;
189 }
190
191 /*
192 * Send the boot firmware to the GO7007 and configure the registers. This
193 * is the only way to stop the encoder once it has started streaming video.
194 *
195 * Must be called with the hw_lock held.
196 */
go7007_reset_encoder(struct go7007 * go)197 int go7007_reset_encoder(struct go7007 *go)
198 {
199 if (go7007_load_encoder(go) < 0)
200 return -1;
201 return go7007_init_encoder(go);
202 }
203
204 /*
205 * Attempt to instantiate an I2C client by ID, probably loading a module.
206 */
init_i2c_module(struct i2c_adapter * adapter,const struct go_i2c * const i2c)207 static int init_i2c_module(struct i2c_adapter *adapter, const struct go_i2c *const i2c)
208 {
209 struct go7007 *go = i2c_get_adapdata(adapter);
210 struct v4l2_device *v4l2_dev = &go->v4l2_dev;
211 struct v4l2_subdev *sd;
212 struct i2c_board_info info;
213
214 memset(&info, 0, sizeof(info));
215 strlcpy(info.type, i2c->type, sizeof(info.type));
216 info.addr = i2c->addr;
217 info.flags = i2c->flags;
218
219 sd = v4l2_i2c_new_subdev_board(v4l2_dev, adapter, &info, NULL);
220 if (sd) {
221 if (i2c->is_video)
222 go->sd_video = sd;
223 if (i2c->is_audio)
224 go->sd_audio = sd;
225 return 0;
226 }
227
228 printk(KERN_INFO "go7007: probing for module i2c:%s failed\n", i2c->type);
229 return -EINVAL;
230 }
231
232 /*
233 * Detach and unregister the encoder. The go7007 struct won't be freed
234 * until v4l2 finishes releasing its resources and all associated fds are
235 * closed by applications.
236 */
go7007_remove(struct v4l2_device * v4l2_dev)237 static void go7007_remove(struct v4l2_device *v4l2_dev)
238 {
239 struct go7007 *go = container_of(v4l2_dev, struct go7007, v4l2_dev);
240
241 v4l2_device_unregister(v4l2_dev);
242 if (go->hpi_ops->release)
243 go->hpi_ops->release(go);
244 if (go->i2c_adapter_online) {
245 i2c_del_adapter(&go->i2c_adapter);
246 go->i2c_adapter_online = 0;
247 }
248
249 kfree(go->boot_fw);
250 go7007_v4l2_remove(go);
251 kfree(go);
252 }
253
254 /*
255 * Finalize the GO7007 hardware setup, register the on-board I2C adapter
256 * (if used on this board), load the I2C client driver for the sensor
257 * (SAA7115 or whatever) and other devices, and register the ALSA and V4L2
258 * interfaces.
259 *
260 * Must NOT be called with the hw_lock held.
261 */
go7007_register_encoder(struct go7007 * go,unsigned num_i2c_devs)262 int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs)
263 {
264 int i, ret;
265
266 dev_info(go->dev, "go7007: registering new %s\n", go->name);
267
268 go->v4l2_dev.release = go7007_remove;
269 ret = v4l2_device_register(go->dev, &go->v4l2_dev);
270 if (ret < 0)
271 return ret;
272
273 mutex_lock(&go->hw_lock);
274 ret = go7007_init_encoder(go);
275 mutex_unlock(&go->hw_lock);
276 if (ret < 0)
277 return ret;
278
279 ret = go7007_v4l2_ctrl_init(go);
280 if (ret < 0)
281 return ret;
282
283 if (!go->i2c_adapter_online &&
284 go->board_info->flags & GO7007_BOARD_USE_ONBOARD_I2C) {
285 ret = go7007_i2c_init(go);
286 if (ret < 0)
287 return ret;
288 go->i2c_adapter_online = 1;
289 }
290 if (go->i2c_adapter_online) {
291 if (go->board_id == GO7007_BOARDID_ADS_USBAV_709) {
292 /* Reset the TW9906 */
293 go7007_write_addr(go, 0x3c82, 0x0009);
294 msleep(50);
295 go7007_write_addr(go, 0x3c82, 0x000d);
296 }
297 for (i = 0; i < num_i2c_devs; ++i)
298 init_i2c_module(&go->i2c_adapter, &go->board_info->i2c_devs[i]);
299
300 if (go->tuner_type >= 0) {
301 struct tuner_setup setup = {
302 .addr = ADDR_UNSET,
303 .type = go->tuner_type,
304 .mode_mask = T_ANALOG_TV,
305 };
306
307 v4l2_device_call_all(&go->v4l2_dev, 0, tuner,
308 s_type_addr, &setup);
309 }
310 if (go->board_id == GO7007_BOARDID_ADLINK_MPG24)
311 v4l2_subdev_call(go->sd_video, video, s_routing,
312 0, 0, go->channel_number + 1);
313 }
314
315 ret = go7007_v4l2_init(go);
316 if (ret < 0)
317 return ret;
318
319 if (go->board_info->flags & GO7007_BOARD_HAS_AUDIO) {
320 go->audio_enabled = 1;
321 go7007_snd_init(go);
322 }
323 return 0;
324 }
325 EXPORT_SYMBOL(go7007_register_encoder);
326
327 /*
328 * Send the encode firmware to the encoder, which will cause it
329 * to immediately start delivering the video and audio streams.
330 *
331 * Must be called with the hw_lock held.
332 */
go7007_start_encoder(struct go7007 * go)333 int go7007_start_encoder(struct go7007 *go)
334 {
335 u8 *fw;
336 int fw_len, rv = 0, i;
337 u16 intr_val, intr_data;
338
339 go->modet_enable = 0;
340 if (!go->dvd_mode)
341 for (i = 0; i < 4; ++i) {
342 if (go->modet[i].enable) {
343 go->modet_enable = 1;
344 continue;
345 }
346 go->modet[i].pixel_threshold = 32767;
347 go->modet[i].motion_threshold = 32767;
348 go->modet[i].mb_threshold = 32767;
349 }
350
351 if (go7007_construct_fw_image(go, &fw, &fw_len) < 0)
352 return -1;
353
354 if (go7007_send_firmware(go, fw, fw_len) < 0 ||
355 go7007_read_interrupt(go, &intr_val, &intr_data) < 0) {
356 v4l2_err(&go->v4l2_dev, "error transferring firmware\n");
357 rv = -1;
358 goto start_error;
359 }
360
361 go->state = STATE_DATA;
362 go->parse_length = 0;
363 go->seen_frame = 0;
364 if (go7007_stream_start(go) < 0) {
365 v4l2_err(&go->v4l2_dev, "error starting stream transfer\n");
366 rv = -1;
367 goto start_error;
368 }
369
370 start_error:
371 kfree(fw);
372 return rv;
373 }
374
375 /*
376 * Store a byte in the current video buffer, if there is one.
377 */
store_byte(struct go7007_buffer * vb,u8 byte)378 static inline void store_byte(struct go7007_buffer *vb, u8 byte)
379 {
380 if (vb && vb->vb.v4l2_planes[0].bytesused < GO7007_BUF_SIZE) {
381 u8 *ptr = vb2_plane_vaddr(&vb->vb, 0);
382
383 ptr[vb->vb.v4l2_planes[0].bytesused++] = byte;
384 }
385 }
386
387 /*
388 * Deliver the last video buffer and get a new one to start writing to.
389 */
frame_boundary(struct go7007 * go,struct go7007_buffer * vb)390 static struct go7007_buffer *frame_boundary(struct go7007 *go, struct go7007_buffer *vb)
391 {
392 struct go7007_buffer *vb_tmp = NULL;
393 u32 *bytesused = &vb->vb.v4l2_planes[0].bytesused;
394 int i;
395
396 if (vb) {
397 if (vb->modet_active) {
398 if (*bytesused + 216 < GO7007_BUF_SIZE) {
399 for (i = 0; i < 216; ++i)
400 store_byte(vb, go->active_map[i]);
401 *bytesused -= 216;
402 } else
403 vb->modet_active = 0;
404 }
405 vb->vb.v4l2_buf.sequence = go->next_seq++;
406 v4l2_get_timestamp(&vb->vb.v4l2_buf.timestamp);
407 vb_tmp = vb;
408 spin_lock(&go->spinlock);
409 list_del(&vb->list);
410 if (list_empty(&go->vidq_active))
411 vb = NULL;
412 else
413 vb = list_first_entry(&go->vidq_active, struct go7007_buffer, list);
414 go->active_buf = vb;
415 spin_unlock(&go->spinlock);
416 vb2_buffer_done(&vb_tmp->vb, VB2_BUF_STATE_DONE);
417 return vb;
418 }
419 spin_lock(&go->spinlock);
420 if (!list_empty(&go->vidq_active))
421 vb = go->active_buf =
422 list_first_entry(&go->vidq_active, struct go7007_buffer, list);
423 spin_unlock(&go->spinlock);
424 go->next_seq++;
425 return vb;
426 }
427
write_bitmap_word(struct go7007 * go)428 static void write_bitmap_word(struct go7007 *go)
429 {
430 int x, y, i, stride = ((go->width >> 4) + 7) >> 3;
431
432 for (i = 0; i < 16; ++i) {
433 y = (((go->parse_length - 1) << 3) + i) / (go->width >> 4);
434 x = (((go->parse_length - 1) << 3) + i) % (go->width >> 4);
435 if (stride * y + (x >> 3) < sizeof(go->active_map))
436 go->active_map[stride * y + (x >> 3)] |=
437 (go->modet_word & 1) << (x & 0x7);
438 go->modet_word >>= 1;
439 }
440 }
441
442 /*
443 * Parse a chunk of the video stream into frames. The frames are not
444 * delimited by the hardware, so we have to parse the frame boundaries
445 * based on the type of video stream we're receiving.
446 */
go7007_parse_video_stream(struct go7007 * go,u8 * buf,int length)447 void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length)
448 {
449 struct go7007_buffer *vb = go->active_buf;
450 int i, seq_start_code = -1, gop_start_code = -1, frame_start_code = -1;
451
452 switch (go->format) {
453 case V4L2_PIX_FMT_MPEG4:
454 seq_start_code = 0xB0;
455 gop_start_code = 0xB3;
456 frame_start_code = 0xB6;
457 break;
458 case V4L2_PIX_FMT_MPEG1:
459 case V4L2_PIX_FMT_MPEG2:
460 seq_start_code = 0xB3;
461 gop_start_code = 0xB8;
462 frame_start_code = 0x00;
463 break;
464 }
465
466 for (i = 0; i < length; ++i) {
467 if (vb && vb->vb.v4l2_planes[0].bytesused >= GO7007_BUF_SIZE - 3) {
468 v4l2_info(&go->v4l2_dev, "dropping oversized frame\n");
469 vb->vb.v4l2_planes[0].bytesused = 0;
470 vb->frame_offset = 0;
471 vb->modet_active = 0;
472 vb = go->active_buf = NULL;
473 }
474
475 switch (go->state) {
476 case STATE_DATA:
477 switch (buf[i]) {
478 case 0x00:
479 go->state = STATE_00;
480 break;
481 case 0xFF:
482 go->state = STATE_FF;
483 break;
484 default:
485 store_byte(vb, buf[i]);
486 break;
487 }
488 break;
489 case STATE_00:
490 switch (buf[i]) {
491 case 0x00:
492 go->state = STATE_00_00;
493 break;
494 case 0xFF:
495 store_byte(vb, 0x00);
496 go->state = STATE_FF;
497 break;
498 default:
499 store_byte(vb, 0x00);
500 store_byte(vb, buf[i]);
501 go->state = STATE_DATA;
502 break;
503 }
504 break;
505 case STATE_00_00:
506 switch (buf[i]) {
507 case 0x00:
508 store_byte(vb, 0x00);
509 /* go->state remains STATE_00_00 */
510 break;
511 case 0x01:
512 go->state = STATE_00_00_01;
513 break;
514 case 0xFF:
515 store_byte(vb, 0x00);
516 store_byte(vb, 0x00);
517 go->state = STATE_FF;
518 break;
519 default:
520 store_byte(vb, 0x00);
521 store_byte(vb, 0x00);
522 store_byte(vb, buf[i]);
523 go->state = STATE_DATA;
524 break;
525 }
526 break;
527 case STATE_00_00_01:
528 if (buf[i] == 0xF8 && go->modet_enable == 0) {
529 /* MODET start code, but MODET not enabled */
530 store_byte(vb, 0x00);
531 store_byte(vb, 0x00);
532 store_byte(vb, 0x01);
533 store_byte(vb, 0xF8);
534 go->state = STATE_DATA;
535 break;
536 }
537 /* If this is the start of a new MPEG frame,
538 * get a new buffer */
539 if ((go->format == V4L2_PIX_FMT_MPEG1 ||
540 go->format == V4L2_PIX_FMT_MPEG2 ||
541 go->format == V4L2_PIX_FMT_MPEG4) &&
542 (buf[i] == seq_start_code ||
543 buf[i] == gop_start_code ||
544 buf[i] == frame_start_code)) {
545 if (vb == NULL || go->seen_frame)
546 vb = frame_boundary(go, vb);
547 go->seen_frame = buf[i] == frame_start_code;
548 if (vb && go->seen_frame)
549 vb->frame_offset = vb->vb.v4l2_planes[0].bytesused;
550 }
551 /* Handle any special chunk types, or just write the
552 * start code to the (potentially new) buffer */
553 switch (buf[i]) {
554 case 0xF5: /* timestamp */
555 go->parse_length = 12;
556 go->state = STATE_UNPARSED;
557 break;
558 case 0xF6: /* vbi */
559 go->state = STATE_VBI_LEN_A;
560 break;
561 case 0xF8: /* MD map */
562 go->parse_length = 0;
563 memset(go->active_map, 0,
564 sizeof(go->active_map));
565 go->state = STATE_MODET_MAP;
566 break;
567 case 0xFF: /* Potential JPEG start code */
568 store_byte(vb, 0x00);
569 store_byte(vb, 0x00);
570 store_byte(vb, 0x01);
571 go->state = STATE_FF;
572 break;
573 default:
574 store_byte(vb, 0x00);
575 store_byte(vb, 0x00);
576 store_byte(vb, 0x01);
577 store_byte(vb, buf[i]);
578 go->state = STATE_DATA;
579 break;
580 }
581 break;
582 case STATE_FF:
583 switch (buf[i]) {
584 case 0x00:
585 store_byte(vb, 0xFF);
586 go->state = STATE_00;
587 break;
588 case 0xFF:
589 store_byte(vb, 0xFF);
590 /* go->state remains STATE_FF */
591 break;
592 case 0xD8:
593 if (go->format == V4L2_PIX_FMT_MJPEG)
594 vb = frame_boundary(go, vb);
595 /* fall through */
596 default:
597 store_byte(vb, 0xFF);
598 store_byte(vb, buf[i]);
599 go->state = STATE_DATA;
600 break;
601 }
602 break;
603 case STATE_VBI_LEN_A:
604 go->parse_length = buf[i] << 8;
605 go->state = STATE_VBI_LEN_B;
606 break;
607 case STATE_VBI_LEN_B:
608 go->parse_length |= buf[i];
609 if (go->parse_length > 0)
610 go->state = STATE_UNPARSED;
611 else
612 go->state = STATE_DATA;
613 break;
614 case STATE_MODET_MAP:
615 if (go->parse_length < 204) {
616 if (go->parse_length & 1) {
617 go->modet_word |= buf[i];
618 write_bitmap_word(go);
619 } else
620 go->modet_word = buf[i] << 8;
621 } else if (go->parse_length == 207 && vb) {
622 vb->modet_active = buf[i];
623 }
624 if (++go->parse_length == 208)
625 go->state = STATE_DATA;
626 break;
627 case STATE_UNPARSED:
628 if (--go->parse_length == 0)
629 go->state = STATE_DATA;
630 break;
631 }
632 }
633 }
634 EXPORT_SYMBOL(go7007_parse_video_stream);
635
636 /*
637 * Allocate a new go7007 struct. Used by the hardware-specific probe.
638 */
go7007_alloc(const struct go7007_board_info * board,struct device * dev)639 struct go7007 *go7007_alloc(const struct go7007_board_info *board,
640 struct device *dev)
641 {
642 struct go7007 *go;
643 int i;
644
645 go = kzalloc(sizeof(struct go7007), GFP_KERNEL);
646 if (go == NULL)
647 return NULL;
648 go->dev = dev;
649 go->board_info = board;
650 go->board_id = 0;
651 go->tuner_type = -1;
652 go->channel_number = 0;
653 go->name[0] = 0;
654 mutex_init(&go->hw_lock);
655 init_waitqueue_head(&go->frame_waitq);
656 spin_lock_init(&go->spinlock);
657 go->status = STATUS_INIT;
658 memset(&go->i2c_adapter, 0, sizeof(go->i2c_adapter));
659 go->i2c_adapter_online = 0;
660 go->interrupt_available = 0;
661 init_waitqueue_head(&go->interrupt_waitq);
662 go->input = 0;
663 go7007_update_board(go);
664 go->encoder_h_halve = 0;
665 go->encoder_v_halve = 0;
666 go->encoder_subsample = 0;
667 go->format = V4L2_PIX_FMT_MJPEG;
668 go->bitrate = 1500000;
669 go->fps_scale = 1;
670 go->pali = 0;
671 go->aspect_ratio = GO7007_RATIO_1_1;
672 go->gop_size = 0;
673 go->ipb = 0;
674 go->closed_gop = 0;
675 go->repeat_seqhead = 0;
676 go->seq_header_enable = 0;
677 go->gop_header_enable = 0;
678 go->dvd_mode = 0;
679 go->interlace_coding = 0;
680 for (i = 0; i < 4; ++i)
681 go->modet[i].enable = 0;
682 for (i = 0; i < 1624; ++i)
683 go->modet_map[i] = 0;
684 go->audio_deliver = NULL;
685 go->audio_enabled = 0;
686
687 return go;
688 }
689 EXPORT_SYMBOL(go7007_alloc);
690
go7007_update_board(struct go7007 * go)691 void go7007_update_board(struct go7007 *go)
692 {
693 const struct go7007_board_info *board = go->board_info;
694
695 if (board->sensor_flags & GO7007_SENSOR_TV) {
696 go->standard = GO7007_STD_NTSC;
697 go->std = V4L2_STD_NTSC_M;
698 go->width = 720;
699 go->height = 480;
700 go->sensor_framerate = 30000;
701 } else {
702 go->standard = GO7007_STD_OTHER;
703 go->width = board->sensor_width;
704 go->height = board->sensor_height;
705 go->sensor_framerate = board->sensor_framerate;
706 }
707 go->encoder_v_offset = board->sensor_v_offset;
708 go->encoder_h_offset = board->sensor_h_offset;
709 }
710 EXPORT_SYMBOL(go7007_update_board);
711
712 MODULE_LICENSE("GPL v2");
713