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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / media / video / cx231xx / cx231xx-core.c
blob912a4d7402068743486ea3f327b672fe8eecdc2b
1 /*
2 cx231xx-core.c - driver for Conexant Cx23100/101/102
3 USB video capture devices
4
5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
6 Based on em28xx driver
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #include <linux/init.h>
24 #include <linux/list.h>
25 #include <linux/module.h>
26 #include <linux/slab.h>
27 #include <linux/usb.h>
28 #include <linux/vmalloc.h>
29 #include <media/v4l2-common.h>
30
31 #include "cx231xx.h"
32 #include "cx231xx-reg.h"
33
34 /* #define ENABLE_DEBUG_ISOC_FRAMES */
35
36 static unsigned int core_debug;
37 module_param(core_debug, int, 0644);
38 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
39
40 #define cx231xx_coredbg(fmt, arg...) do {\
41 if (core_debug) \
42 printk(KERN_INFO "%s %s :"fmt, \
43 dev->name, __func__ , ##arg); } while (0)
44
45 static unsigned int reg_debug;
46 module_param(reg_debug, int, 0644);
47 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
48
49 #define cx231xx_regdbg(fmt, arg...) do {\
50 if (reg_debug) \
51 printk(KERN_INFO "%s %s :"fmt, \
52 dev->name, __func__ , ##arg); } while (0)
53
54 static int alt = CX231XX_PINOUT;
55 module_param(alt, int, 0644);
56 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
57
58 #define cx231xx_isocdbg(fmt, arg...) do {\
59 if (core_debug) \
60 printk(KERN_INFO "%s %s :"fmt, \
61 dev->name, __func__ , ##arg); } while (0)
62
63 /*****************************************************************
64 * Device control list functions *
65 ******************************************************************/
66
67 static LIST_HEAD(cx231xx_devlist);
68 static DEFINE_MUTEX(cx231xx_devlist_mutex);
69
70 /*
71 * cx231xx_realease_resources()
72 * unregisters the v4l2,i2c and usb devices
73 * called when the device gets disconected or at module unload
74 */
75 void cx231xx_remove_from_devlist(struct cx231xx *dev)
76 {
77 mutex_lock(&cx231xx_devlist_mutex);
78 list_del(&dev->devlist);
79 mutex_unlock(&cx231xx_devlist_mutex);
80 };
81
82 void cx231xx_add_into_devlist(struct cx231xx *dev)
83 {
84 mutex_lock(&cx231xx_devlist_mutex);
85 list_add_tail(&dev->devlist, &cx231xx_devlist);
86 mutex_unlock(&cx231xx_devlist_mutex);
87 };
88
89 static LIST_HEAD(cx231xx_extension_devlist);
90 static DEFINE_MUTEX(cx231xx_extension_devlist_lock);
91
92 int cx231xx_register_extension(struct cx231xx_ops *ops)
93 {
94 struct cx231xx *dev = NULL;
95
96 mutex_lock(&cx231xx_devlist_mutex);
97 mutex_lock(&cx231xx_extension_devlist_lock);
98 list_add_tail(&ops->next, &cx231xx_extension_devlist);
99 list_for_each_entry(dev, &cx231xx_devlist, devlist)
100 ops->init(dev);
101
102 printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
103 mutex_unlock(&cx231xx_extension_devlist_lock);
104 mutex_unlock(&cx231xx_devlist_mutex);
105 return 0;
106 }
107 EXPORT_SYMBOL(cx231xx_register_extension);
108
109 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
110 {
111 struct cx231xx *dev = NULL;
112
113 mutex_lock(&cx231xx_devlist_mutex);
114 list_for_each_entry(dev, &cx231xx_devlist, devlist)
115 ops->fini(dev);
116
117 mutex_lock(&cx231xx_extension_devlist_lock);
118 printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
119 list_del(&ops->next);
120 mutex_unlock(&cx231xx_extension_devlist_lock);
121 mutex_unlock(&cx231xx_devlist_mutex);
122 }
123 EXPORT_SYMBOL(cx231xx_unregister_extension);
124
125 void cx231xx_init_extension(struct cx231xx *dev)
126 {
127 struct cx231xx_ops *ops = NULL;
128
129 mutex_lock(&cx231xx_extension_devlist_lock);
130 if (!list_empty(&cx231xx_extension_devlist)) {
131 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
132 if (ops->init)
133 ops->init(dev);
134 }
135 }
136 mutex_unlock(&cx231xx_extension_devlist_lock);
137 }
138
139 void cx231xx_close_extension(struct cx231xx *dev)
140 {
141 struct cx231xx_ops *ops = NULL;
142
143 mutex_lock(&cx231xx_extension_devlist_lock);
144 if (!list_empty(&cx231xx_extension_devlist)) {
145 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
146 if (ops->fini)
147 ops->fini(dev);
148 }
149 }
150 mutex_unlock(&cx231xx_extension_devlist_lock);
151 }
152
153 /****************************************************************
154 * U S B related functions *
155 *****************************************************************/
156 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
157 struct cx231xx_i2c_xfer_data *req_data)
158 {
159 int status = 0;
160 struct cx231xx *dev = i2c_bus->dev;
161 struct VENDOR_REQUEST_IN ven_req;
162
163 u8 saddr_len = 0;
164 u8 _i2c_period = 0;
165 u8 _i2c_nostop = 0;
166 u8 _i2c_reserve = 0;
167
168 /* Get the I2C period, nostop and reserve parameters */
169 _i2c_period = i2c_bus->i2c_period;
170 _i2c_nostop = i2c_bus->i2c_nostop;
171 _i2c_reserve = i2c_bus->i2c_reserve;
172
173 saddr_len = req_data->saddr_len;
174
175 /* Set wValue */
176 if (saddr_len == 1) /* need check saddr_len == 0 */
177 ven_req.wValue =
178 req_data->
179 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
180 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
181 else
182 ven_req.wValue =
183 req_data->
184 dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
185 _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
186
187 /* set channel number */
188 if (req_data->direction & I2C_M_RD) {
189 /* channel number, for read,spec required channel_num +4 */
190 ven_req.bRequest = i2c_bus->nr + 4;
191 } else
192 ven_req.bRequest = i2c_bus->nr; /* channel number, */
193
194 /* set index value */
195 switch (saddr_len) {
196 case 0:
197 ven_req.wIndex = 0; /* need check */
198 break;
199 case 1:
200 ven_req.wIndex = (req_data->saddr_dat & 0xff);
201 break;
202 case 2:
203 ven_req.wIndex = req_data->saddr_dat;
204 break;
205 }
206
207 /* set wLength value */
208 ven_req.wLength = req_data->buf_size;
209
210 /* set bData value */
211 ven_req.bData = 0;
212
213 /* set the direction */
214 if (req_data->direction) {
215 ven_req.direction = USB_DIR_IN;
216 memset(req_data->p_buffer, 0x00, ven_req.wLength);
217 } else
218 ven_req.direction = USB_DIR_OUT;
219
220 /* set the buffer for read / write */
221 ven_req.pBuff = req_data->p_buffer;
222
223
224 /* call common vendor command request */
225 status = cx231xx_send_vendor_cmd(dev, &ven_req);
226 if (status < 0) {
227 cx231xx_info
228 ("UsbInterface::sendCommand, failed with status -%d\n",
229 status);
230 }
231
232 return status;
233 }
234 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
235
236 /*
237 * cx231xx_read_ctrl_reg()
238 * reads data from the usb device specifying bRequest and wValue
239 */
240 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
241 char *buf, int len)
242 {
243 u8 val = 0;
244 int ret;
245 int pipe = usb_rcvctrlpipe(dev->udev, 0);
246
247 if (dev->state & DEV_DISCONNECTED)
248 return -ENODEV;
249
250 if (len > URB_MAX_CTRL_SIZE)
251 return -EINVAL;
252
253 switch (len) {
254 case 1:
255 val = ENABLE_ONE_BYTE;
256 break;
257 case 2:
258 val = ENABLE_TWE_BYTE;
259 break;
260 case 3:
261 val = ENABLE_THREE_BYTE;
262 break;
263 case 4:
264 val = ENABLE_FOUR_BYTE;
265 break;
266 default:
267 val = 0xFF; /* invalid option */
268 }
269
270 if (val == 0xFF)
271 return -EINVAL;
272
273 if (reg_debug) {
274 cx231xx_isocdbg("(pipe 0x%08x): "
275 "IN: %02x %02x %02x %02x %02x %02x %02x %02x ",
276 pipe,
277 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
278 req, 0, val,
279 reg & 0xff, reg >> 8, len & 0xff, len >> 8);
280 }
281
282 mutex_lock(&dev->ctrl_urb_lock);
283 ret = usb_control_msg(dev->udev, pipe, req,
284 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
285 val, reg, dev->urb_buf, len, HZ);
286 if (ret < 0) {
287 cx231xx_isocdbg(" failed!\n");
288 /* mutex_unlock(&dev->ctrl_urb_lock); */
289 return ret;
290 }
291
292 if (len)
293 memcpy(buf, dev->urb_buf, len);
294
295 mutex_unlock(&dev->ctrl_urb_lock);
296
297 if (reg_debug) {
298 int byte;
299
300 cx231xx_isocdbg("<<<");
301 for (byte = 0; byte < len; byte++)
302 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
303 cx231xx_isocdbg("\n");
304 }
305
306 return ret;
307 }
308
309 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
310 struct VENDOR_REQUEST_IN *ven_req)
311 {
312 int ret;
313 int pipe = 0;
314
315 if (dev->state & DEV_DISCONNECTED)
316 return -ENODEV;
317
318 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
319 return -EINVAL;
320
321 if (ven_req->direction)
322 pipe = usb_rcvctrlpipe(dev->udev, 0);
323 else
324 pipe = usb_sndctrlpipe(dev->udev, 0);
325
326 if (reg_debug) {
327 int byte;
328
329 cx231xx_isocdbg("(pipe 0x%08x): "
330 "OUT: %02x %02x %02x %04x %04x %04x >>>",
331 pipe,
332 ven_req->
333 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
334 ven_req->bRequest, 0, ven_req->wValue,
335 ven_req->wIndex, ven_req->wLength);
336
337 for (byte = 0; byte < ven_req->wLength; byte++)
338 cx231xx_isocdbg(" %02x",
339 (unsigned char)ven_req->pBuff[byte]);
340 cx231xx_isocdbg("\n");
341 }
342
343 mutex_lock(&dev->ctrl_urb_lock);
344 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
345 ven_req->
346 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
347 ven_req->wValue, ven_req->wIndex, ven_req->pBuff,
348 ven_req->wLength, HZ);
349 mutex_unlock(&dev->ctrl_urb_lock);
350
351 return ret;
352 }
353
354 /*
355 * cx231xx_write_ctrl_reg()
356 * sends data to the usb device, specifying bRequest
357 */
358 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
359 int len)
360 {
361 u8 val = 0;
362 int ret;
363 int pipe = usb_sndctrlpipe(dev->udev, 0);
364
365 if (dev->state & DEV_DISCONNECTED)
366 return -ENODEV;
367
368 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
369 return -EINVAL;
370
371 switch (len) {
372 case 1:
373 val = ENABLE_ONE_BYTE;
374 break;
375 case 2:
376 val = ENABLE_TWE_BYTE;
377 break;
378 case 3:
379 val = ENABLE_THREE_BYTE;
380 break;
381 case 4:
382 val = ENABLE_FOUR_BYTE;
383 break;
384 default:
385 val = 0xFF; /* invalid option */
386 }
387
388 if (val == 0xFF)
389 return -EINVAL;
390
391 if (reg_debug) {
392 int byte;
393
394 cx231xx_isocdbg("(pipe 0x%08x): "
395 "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
396 pipe,
397 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
398 req, 0, val, reg & 0xff,
399 reg >> 8, len & 0xff, len >> 8);
400
401 for (byte = 0; byte < len; byte++)
402 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
403 cx231xx_isocdbg("\n");
404 }
405
406 mutex_lock(&dev->ctrl_urb_lock);
407 memcpy(dev->urb_buf, buf, len);
408 ret = usb_control_msg(dev->udev, pipe, req,
409 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
410 val, reg, dev->urb_buf, len, HZ);
411 mutex_unlock(&dev->ctrl_urb_lock);
412
413 return ret;
414 }
415
416 /****************************************************************
417 * USB Alternate Setting functions *
418 *****************************************************************/
419
420 int cx231xx_set_video_alternate(struct cx231xx *dev)
421 {
422 int errCode, prev_alt = dev->video_mode.alt;
423 unsigned int min_pkt_size = dev->width * 2 + 4;
424 u32 usb_interface_index = 0;
425
426 /* When image size is bigger than a certain value,
427 the frame size should be increased, otherwise, only
428 green screen will be received.
429 */
430 if (dev->width * 2 * dev->height > 720 * 240 * 2)
431 min_pkt_size *= 2;
432
433 if (dev->width > 360) {
434 /* resolutions: 720,704,640 */
435 dev->video_mode.alt = 3;
436 } else if (dev->width > 180) {
437 /* resolutions: 360,352,320,240 */
438 dev->video_mode.alt = 2;
439 } else if (dev->width > 0) {
440 /* resolutions: 180,176,160,128,88 */
441 dev->video_mode.alt = 1;
442 } else {
443 /* Change to alt0 BULK to release USB bandwidth */
444 dev->video_mode.alt = 0;
445 }
446
447 /* Get the correct video interface Index */
448 usb_interface_index =
449 dev->current_pcb_config.hs_config_info[0].interface_info.
450 video_index + 1;
451
452 if (dev->video_mode.alt != prev_alt) {
453 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
454 min_pkt_size, dev->video_mode.alt);
455 dev->video_mode.max_pkt_size =
456 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
457 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
458 dev->video_mode.alt,
459 dev->video_mode.max_pkt_size);
460 cx231xx_info
461 (" setting alt %d with wMaxPktSize=%u , Interface = %d\n",
462 dev->video_mode.alt, dev->video_mode.max_pkt_size,
463 usb_interface_index);
464 errCode =
465 usb_set_interface(dev->udev, usb_interface_index,
466 dev->video_mode.alt);
467 if (errCode < 0) {
468 cx231xx_errdev
469 ("cannot change alt number to %d (error=%i)\n",
470 dev->video_mode.alt, errCode);
471 return errCode;
472 }
473 }
474 return 0;
475 }
476
477 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
478 {
479 int status = 0;
480 u32 usb_interface_index = 0;
481 u32 max_pkt_size = 0;
482
483 switch (index) {
484 case INDEX_TS1:
485 usb_interface_index =
486 dev->current_pcb_config.hs_config_info[0].interface_info.
487 ts1_index + 1;
488 dev->video_mode.alt = alt;
489 if (dev->ts1_mode.alt_max_pkt_size != NULL)
490 max_pkt_size = dev->ts1_mode.max_pkt_size =
491 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
492 break;
493 case INDEX_TS2:
494 usb_interface_index =
495 dev->current_pcb_config.hs_config_info[0].interface_info.
496 ts2_index + 1;
497 break;
498 case INDEX_AUDIO:
499 usb_interface_index =
500 dev->current_pcb_config.hs_config_info[0].interface_info.
501 audio_index + 1;
502 dev->adev.alt = alt;
503 if (dev->adev.alt_max_pkt_size != NULL)
504 max_pkt_size = dev->adev.max_pkt_size =
505 dev->adev.alt_max_pkt_size[dev->adev.alt];
506 break;
507 case INDEX_VIDEO:
508 usb_interface_index =
509 dev->current_pcb_config.hs_config_info[0].interface_info.
510 video_index + 1;
511 dev->video_mode.alt = alt;
512 if (dev->video_mode.alt_max_pkt_size != NULL)
513 max_pkt_size = dev->video_mode.max_pkt_size =
514 dev->video_mode.alt_max_pkt_size[dev->video_mode.
515 alt];
516 break;
517 case INDEX_VANC:
518 usb_interface_index =
519 dev->current_pcb_config.hs_config_info[0].interface_info.
520 vanc_index + 1;
521 dev->vbi_mode.alt = alt;
522 if (dev->vbi_mode.alt_max_pkt_size != NULL)
523 max_pkt_size = dev->vbi_mode.max_pkt_size =
524 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
525 break;
526 case INDEX_HANC:
527 usb_interface_index =
528 dev->current_pcb_config.hs_config_info[0].interface_info.
529 hanc_index + 1;
530 dev->sliced_cc_mode.alt = alt;
531 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
532 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
533 dev->sliced_cc_mode.alt_max_pkt_size[dev->
534 sliced_cc_mode.
535 alt];
536 break;
537 default:
538 break;
539 }
540
541 if (alt > 0 && max_pkt_size == 0) {
542 cx231xx_errdev
543 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
544 usb_interface_index, alt);
545 return -1;
546 }
547
548 cx231xx_info
549 (" setting alternate %d with wMaxPacketSize=%u , Interface = %d\n",
550 alt, max_pkt_size, usb_interface_index);
551
552 if (usb_interface_index > 0) {
553 status = usb_set_interface(dev->udev, usb_interface_index, alt);
554 if (status < 0) {
555 cx231xx_errdev
556 ("can't change interface %d alt no. to %d (err=%i)\n",
557 usb_interface_index, alt, status);
558 return status;
559 }
560 }
561
562 return status;
563 }
564 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
565
566 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
567 {
568 int rc = 0;
569
570 if (!gpio)
571 return rc;
572
573 /* Send GPIO reset sequences specified at board entry */
574 while (gpio->sleep >= 0) {
575 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
576 if (rc < 0)
577 return rc;
578
579 if (gpio->sleep > 0)
580 msleep(gpio->sleep);
581
582 gpio++;
583 }
584 return rc;
585 }
586
587 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
588 {
589 if (dev->mode == set_mode)
590 return 0;
591
592 if (set_mode == CX231XX_SUSPEND) {
593 /* Set the chip in power saving mode */
594 dev->mode = set_mode;
595 }
596
597 /* Resource is locked */
598 if (dev->mode != CX231XX_SUSPEND)
599 return -EINVAL;
600
601 dev->mode = set_mode;
602
603 if (dev->mode == CX231XX_DIGITAL_MODE)
604 ;/* Set Digital power mode */
605 else
606 ;/* Set Analog Power mode */
607
608 return 0;
609 }
610 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
611
612 /*****************************************************************
613 * URB Streaming functions *
614 ******************************************************************/
615
616 /*
617 * IRQ callback, called by URB callback
618 */
619 static void cx231xx_irq_callback(struct urb *urb)
620 {
621 struct cx231xx_dmaqueue *dma_q = urb->context;
622 struct cx231xx_video_mode *vmode =
623 container_of(dma_q, struct cx231xx_video_mode, vidq);
624 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
625 int rc, i;
626
627 switch (urb->status) {
628 case 0: /* success */
629 case -ETIMEDOUT: /* NAK */
630 break;
631 case -ECONNRESET: /* kill */
632 case -ENOENT:
633 case -ESHUTDOWN:
634 return;
635 default: /* error */
636 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
637 break;
638 }
639
640 /* Copy data from URB */
641 spin_lock(&dev->video_mode.slock);
642 rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
643 spin_unlock(&dev->video_mode.slock);
644
645 /* Reset urb buffers */
646 for (i = 0; i < urb->number_of_packets; i++) {
647 urb->iso_frame_desc[i].status = 0;
648 urb->iso_frame_desc[i].actual_length = 0;
649 }
650 urb->status = 0;
651
652 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
653 if (urb->status) {
654 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
655 urb->status);
656 }
657 }
658
659 /*
660 * Stop and Deallocate URBs
661 */
662 void cx231xx_uninit_isoc(struct cx231xx *dev)
663 {
664 struct urb *urb;
665 int i;
666
667 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
668
669 dev->video_mode.isoc_ctl.nfields = -1;
670 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
671 urb = dev->video_mode.isoc_ctl.urb[i];
672 if (urb) {
673 if (!irqs_disabled())
674 usb_kill_urb(urb);
675 else
676 usb_unlink_urb(urb);
677
678 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
679 usb_free_coherent(dev->udev,
680 urb->transfer_buffer_length,
681 dev->video_mode.isoc_ctl.
682 transfer_buffer[i],
683 urb->transfer_dma);
684 }
685 usb_free_urb(urb);
686 dev->video_mode.isoc_ctl.urb[i] = NULL;
687 }
688 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
689 }
690
691 kfree(dev->video_mode.isoc_ctl.urb);
692 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
693
694 dev->video_mode.isoc_ctl.urb = NULL;
695 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
696 dev->video_mode.isoc_ctl.num_bufs = 0;
697
698 cx231xx_capture_start(dev, 0, Raw_Video);
699 }
700 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
701
702 /*
703 * Allocate URBs and start IRQ
704 */
705 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
706 int num_bufs, int max_pkt_size,
707 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
708 {
709 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
710 int i;
711 int sb_size, pipe;
712 struct urb *urb;
713 int j, k;
714 int rc;
715
716 cx231xx_isocdbg("cx231xx: called cx231xx_prepare_isoc\n");
717
718 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
719
720 cx231xx_info("Setting Video mux to %d\n", dev->video_input);
721 video_mux(dev, dev->video_input);
722
723 /* De-allocates all pending stuff */
724 cx231xx_uninit_isoc(dev);
725
726 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
727 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
728 dma_q->pos = 0;
729 dma_q->is_partial_line = 0;
730 dma_q->last_sav = 0;
731 dma_q->current_field = -1;
732 dma_q->field1_done = 0;
733 dma_q->lines_per_field = dev->height / 2;
734 dma_q->bytes_left_in_line = dev->width << 1;
735 dma_q->lines_completed = 0;
736 for (i = 0; i < 8; i++)
737 dma_q->partial_buf[i] = 0;
738
739 dev->video_mode.isoc_ctl.urb =
740 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
741 if (!dev->video_mode.isoc_ctl.urb) {
742 cx231xx_errdev("cannot alloc memory for usb buffers\n");
743 return -ENOMEM;
744 }
745
746 dev->video_mode.isoc_ctl.transfer_buffer =
747 kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
748 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
749 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
750 kfree(dev->video_mode.isoc_ctl.urb);
751 return -ENOMEM;
752 }
753
754 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
755 dev->video_mode.isoc_ctl.buf = NULL;
756
757 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
758
759 /* allocate urbs and transfer buffers */
760 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
761 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
762 if (!urb) {
763 cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
764 cx231xx_uninit_isoc(dev);
765 return -ENOMEM;
766 }
767 dev->video_mode.isoc_ctl.urb[i] = urb;
768
769 dev->video_mode.isoc_ctl.transfer_buffer[i] =
770 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
771 &urb->transfer_dma);
772 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
773 cx231xx_err("unable to allocate %i bytes for transfer"
774 " buffer %i%s\n",
775 sb_size, i,
776 in_interrupt() ? " while in int" : "");
777 cx231xx_uninit_isoc(dev);
778 return -ENOMEM;
779 }
780 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
781
782 pipe =
783 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
784
785 usb_fill_int_urb(urb, dev->udev, pipe,
786 dev->video_mode.isoc_ctl.transfer_buffer[i],
787 sb_size, cx231xx_irq_callback, dma_q, 1);
788
789 urb->number_of_packets = max_packets;
790 urb->transfer_flags = URB_ISO_ASAP;
791
792 k = 0;
793 for (j = 0; j < max_packets; j++) {
794 urb->iso_frame_desc[j].offset = k;
795 urb->iso_frame_desc[j].length =
796 dev->video_mode.isoc_ctl.max_pkt_size;
797 k += dev->video_mode.isoc_ctl.max_pkt_size;
798 }
799 }
800
801 init_waitqueue_head(&dma_q->wq);
802
803 /* submit urbs and enables IRQ */
804 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
805 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
806 GFP_ATOMIC);
807 if (rc) {
808 cx231xx_err("submit of urb %i failed (error=%i)\n", i,
809 rc);
810 cx231xx_uninit_isoc(dev);
811 return rc;
812 }
813 }
814
815 cx231xx_capture_start(dev, 1, Raw_Video);
816
817 return 0;
818 }
819 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
820
821 /*****************************************************************
822 * Device Init/UnInit functions *
823 ******************************************************************/
824 int cx231xx_dev_init(struct cx231xx *dev)
825 {
826 int errCode = 0;
827
828 /* Initialize I2C bus */
829
830 /* External Master 1 Bus */
831 dev->i2c_bus[0].nr = 0;
832 dev->i2c_bus[0].dev = dev;
833 dev->i2c_bus[0].i2c_period = I2C_SPEED_1M; /* 1MHz */
834 dev->i2c_bus[0].i2c_nostop = 0;
835 dev->i2c_bus[0].i2c_reserve = 0;
836
837 /* External Master 2 Bus */
838 dev->i2c_bus[1].nr = 1;
839 dev->i2c_bus[1].dev = dev;
840 dev->i2c_bus[1].i2c_period = I2C_SPEED_1M; /* 1MHz */
841 dev->i2c_bus[1].i2c_nostop = 0;
842 dev->i2c_bus[1].i2c_reserve = 0;
843
844 /* Internal Master 3 Bus */
845 dev->i2c_bus[2].nr = 2;
846 dev->i2c_bus[2].dev = dev;
847 dev->i2c_bus[2].i2c_period = I2C_SPEED_400K; /* 400kHz */
848 dev->i2c_bus[2].i2c_nostop = 0;
849 dev->i2c_bus[2].i2c_reserve = 0;
850
851 /* register I2C buses */
852 cx231xx_i2c_register(&dev->i2c_bus[0]);
853 cx231xx_i2c_register(&dev->i2c_bus[1]);
854 cx231xx_i2c_register(&dev->i2c_bus[2]);
855
856 /* init hardware */
857 /* Note : with out calling set power mode function,
858 afe can not be set up correctly */
859 errCode = cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV);
860 if (errCode < 0) {
861 cx231xx_errdev
862 ("%s: Failed to set Power - errCode [%d]!\n",
863 __func__, errCode);
864 return errCode;
865 }
866
867 /* initialize Colibri block */
868 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
869 if (errCode < 0) {
870 cx231xx_errdev
871 ("%s: cx231xx_afe init super block - errCode [%d]!\n",
872 __func__, errCode);
873 return errCode;
874 }
875 errCode = cx231xx_afe_init_channels(dev);
876 if (errCode < 0) {
877 cx231xx_errdev
878 ("%s: cx231xx_afe init channels - errCode [%d]!\n",
879 __func__, errCode);
880 return errCode;
881 }
882
883 /* Set DIF in By pass mode */
884 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
885 if (errCode < 0) {
886 cx231xx_errdev
887 ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
888 __func__, errCode);
889 return errCode;
890 }
891
892 /* I2S block related functions */
893 errCode = cx231xx_i2s_blk_initialize(dev);
894 if (errCode < 0) {
895 cx231xx_errdev
896 ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
897 __func__, errCode);
898 return errCode;
899 }
900
901 /* init control pins */
902 errCode = cx231xx_init_ctrl_pin_status(dev);
903 if (errCode < 0) {
904 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
905 __func__, errCode);
906 return errCode;
907 }
908
909 /* set AGC mode to Analog */
910 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
911 if (errCode < 0) {
912 cx231xx_errdev
913 ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
914 __func__, errCode);
915 return errCode;
916 }
917
918 /* set all alternate settings to zero initially */
919 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
920 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
921 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
922 if (dev->board.has_dvb)
923 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
924
925 /* set the I2C master port to 3 on channel 1 */
926 errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
927
928 return errCode;
929 }
930 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
931
932 void cx231xx_dev_uninit(struct cx231xx *dev)
933 {
934 /* Un Initialize I2C bus */
935 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
936 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
937 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
938 }
939 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
940
941 /*****************************************************************
942 * G P I O related functions *
943 ******************************************************************/
944 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 * gpio_val,
945 u8 len, u8 request, u8 direction)
946 {
947 int status = 0;
948 struct VENDOR_REQUEST_IN ven_req;
949
950 /* Set wValue */
951 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
952
953 /* set request */
954 if (!request) {
955 if (direction)
956 ven_req.bRequest = VRT_GET_GPIO; /* 0x8 gpio */
957 else
958 ven_req.bRequest = VRT_SET_GPIO; /* 0x9 gpio */
959 } else {
960 if (direction)
961 ven_req.bRequest = VRT_GET_GPIE; /* 0xa gpie */
962 else
963 ven_req.bRequest = VRT_SET_GPIE; /* 0xb gpie */
964 }
965
966 /* set index value */
967 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
968
969 /* set wLength value */
970 ven_req.wLength = len;
971
972 /* set bData value */
973 ven_req.bData = 0;
974
975 /* set the buffer for read / write */
976 ven_req.pBuff = gpio_val;
977
978 /* set the direction */
979 if (direction) {
980 ven_req.direction = USB_DIR_IN;
981 memset(ven_req.pBuff, 0x00, ven_req.wLength);
982 } else
983 ven_req.direction = USB_DIR_OUT;
984
985
986 /* call common vendor command request */
987 status = cx231xx_send_vendor_cmd(dev, &ven_req);
988 if (status < 0) {
989 cx231xx_info
990 ("UsbInterface::sendCommand, failed with status -%d\n",
991 status);
992 }
993
994 return status;
995 }
996 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
997
998 /*****************************************************************
999 * C O N T R O L - Register R E A D / W R I T E functions *
1000 *****************************************************************/
1001 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1002 {
1003 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1004 u32 tmp = 0;
1005 int status = 0;
1006
1007 status =
1008 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1009 if (status < 0)
1010 return status;
1011
1012 tmp = *((u32 *) value);
1013 tmp |= mode;
1014
1015 value[0] = (u8) tmp;
1016 value[1] = (u8) (tmp >> 8);
1017 value[2] = (u8) (tmp >> 16);
1018 value[3] = (u8) (tmp >> 24);
1019
1020 status =
1021 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1022
1023 return status;
1024 }
1025
1026 /*****************************************************************
1027 * I 2 C Internal C O N T R O L functions *
1028 *****************************************************************/
1029 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1030 u8 saddr_len, u32 *data, u8 data_len)
1031 {
1032 int status = 0;
1033 struct cx231xx_i2c_xfer_data req_data;
1034 u8 value[4] = { 0, 0, 0, 0 };
1035
1036 if (saddr_len == 0)
1037 saddr = 0;
1038 else if (saddr_len == 0)
1039 saddr &= 0xff;
1040
1041 /* prepare xfer_data struct */
1042 req_data.dev_addr = dev_addr >> 1;
1043 req_data.direction = I2C_M_RD;
1044 req_data.saddr_len = saddr_len;
1045 req_data.saddr_dat = saddr;
1046 req_data.buf_size = data_len;
1047 req_data.p_buffer = (u8 *) value;
1048
1049 /* usb send command */
1050 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1051
1052 if (status >= 0) {
1053 /* Copy the data read back to main buffer */
1054 if (data_len == 1)
1055 *data = value[0];
1056 else
1057 *data =
1058 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1059 << 24;
1060 }
1061
1062 return status;
1063 }
1064
1065 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1066 u8 saddr_len, u32 data, u8 data_len)
1067 {
1068 int status = 0;
1069 u8 value[4] = { 0, 0, 0, 0 };
1070 struct cx231xx_i2c_xfer_data req_data;
1071
1072 value[0] = (u8) data;
1073 value[1] = (u8) (data >> 8);
1074 value[2] = (u8) (data >> 16);
1075 value[3] = (u8) (data >> 24);
1076
1077 if (saddr_len == 0)
1078 saddr = 0;
1079 else if (saddr_len == 0)
1080 saddr &= 0xff;
1081
1082 /* prepare xfer_data struct */
1083 req_data.dev_addr = dev_addr >> 1;
1084 req_data.direction = 0;
1085 req_data.saddr_len = saddr_len;
1086 req_data.saddr_dat = saddr;
1087 req_data.buf_size = data_len;
1088 req_data.p_buffer = value;
1089
1090 /* usb send command */
1091 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1092
1093 return status;
1094 }
1095
1096 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1097 u16 register_address, u8 bit_start, u8 bit_end,
1098 u32 value)
1099 {
1100 int status = 0;
1101 u32 tmp;
1102 u32 mask = 0;
1103 int i;
1104
1105 if (bit_start > (size - 1) || bit_end > (size - 1))
1106 return -1;
1107
1108 if (size == 8) {
1109 status =
1110 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1111 &tmp, 1);
1112 } else {
1113 status =
1114 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1115 &tmp, 4);
1116 }
1117
1118 if (status < 0)
1119 return status;
1120
1121 mask = 1 << bit_end;
1122 for (i = bit_end; i > bit_start && i > 0; i--)
1123 mask = mask + (1 << (i - 1));
1124
1125 value <<= bit_start;
1126
1127 if (size == 8) {
1128 tmp &= ~mask;
1129 tmp |= value;
1130 tmp &= 0xff;
1131 status =
1132 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1133 tmp, 1);
1134 } else {
1135 tmp &= ~mask;
1136 tmp |= value;
1137 status =
1138 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1139 tmp, 4);
1140 }
1141
1142 return status;
1143 }
1144
1145 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1146 u16 saddr, u32 mask, u32 value)
1147 {
1148 u32 temp;
1149 int status = 0;
1150
1151 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1152
1153 if (status < 0)
1154 return status;
1155
1156 temp &= ~mask;
1157 temp |= value;
1158
1159 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1160
1161 return status;
1162 }
1163
1164 u32 cx231xx_set_field(u32 field_mask, u32 data)
1165 {
1166 u32 temp;
1167
1168 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1169 data <<= 1;
1170
1171 return data;
1172 }
Tomato firmware and modifications.