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 "cx231xx.h"
24 #include <linux/init.h>
25 #include <linux/list.h>
26 #include <linux/module.h>
27 #include <linux/slab.h>
28 #include <linux/vmalloc.h>
29 #include <media/v4l2-common.h>
30 #include <media/tuner.h>
31
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 static int alt = CX231XX_PINOUT;
50 module_param(alt, int, 0644);
51 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
52
53 #define cx231xx_isocdbg(fmt, arg...) do {\
54 if (core_debug) \
55 printk(KERN_INFO "%s %s :"fmt, \
56 dev->name, __func__ , ##arg); } while (0)
57
58 /*****************************************************************
59 * Device control list functions *
60 ******************************************************************/
61
62 LIST_HEAD(cx231xx_devlist);
63 static DEFINE_MUTEX(cx231xx_devlist_mutex);
64
65 /*
66 * cx231xx_realease_resources()
67 * unregisters the v4l2,i2c and usb devices
68 * called when the device gets disconected or at module unload
69 */
cx231xx_remove_from_devlist(struct cx231xx * dev)70 void cx231xx_remove_from_devlist(struct cx231xx *dev)
71 {
72 if (dev == NULL)
73 return;
74 if (dev->udev == NULL)
75 return;
76
77 if (atomic_read(&dev->devlist_count) > 0) {
78 mutex_lock(&cx231xx_devlist_mutex);
79 list_del(&dev->devlist);
80 atomic_dec(&dev->devlist_count);
81 mutex_unlock(&cx231xx_devlist_mutex);
82 }
83 };
84
cx231xx_add_into_devlist(struct cx231xx * dev)85 void cx231xx_add_into_devlist(struct cx231xx *dev)
86 {
87 mutex_lock(&cx231xx_devlist_mutex);
88 list_add_tail(&dev->devlist, &cx231xx_devlist);
89 atomic_inc(&dev->devlist_count);
90 mutex_unlock(&cx231xx_devlist_mutex);
91 };
92
93 static LIST_HEAD(cx231xx_extension_devlist);
94
cx231xx_register_extension(struct cx231xx_ops * ops)95 int cx231xx_register_extension(struct cx231xx_ops *ops)
96 {
97 struct cx231xx *dev = NULL;
98
99 mutex_lock(&cx231xx_devlist_mutex);
100 list_add_tail(&ops->next, &cx231xx_extension_devlist);
101 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
102 ops->init(dev);
103 dev_info(dev->dev, "%s initialized\n", ops->name);
104 }
105 mutex_unlock(&cx231xx_devlist_mutex);
106 return 0;
107 }
108 EXPORT_SYMBOL(cx231xx_register_extension);
109
cx231xx_unregister_extension(struct cx231xx_ops * ops)110 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
111 {
112 struct cx231xx *dev = NULL;
113
114 mutex_lock(&cx231xx_devlist_mutex);
115 list_for_each_entry(dev, &cx231xx_devlist, devlist) {
116 ops->fini(dev);
117 dev_info(dev->dev, "%s removed\n", ops->name);
118 }
119
120 list_del(&ops->next);
121 mutex_unlock(&cx231xx_devlist_mutex);
122 }
123 EXPORT_SYMBOL(cx231xx_unregister_extension);
124
cx231xx_init_extension(struct cx231xx * dev)125 void cx231xx_init_extension(struct cx231xx *dev)
126 {
127 struct cx231xx_ops *ops = NULL;
128
129 mutex_lock(&cx231xx_devlist_mutex);
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_devlist_mutex);
137 }
138
cx231xx_close_extension(struct cx231xx * dev)139 void cx231xx_close_extension(struct cx231xx *dev)
140 {
141 struct cx231xx_ops *ops = NULL;
142
143 mutex_lock(&cx231xx_devlist_mutex);
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_devlist_mutex);
151 }
152
153 /****************************************************************
154 * U S B related functions *
155 *****************************************************************/
cx231xx_send_usb_command(struct cx231xx_i2c * i2c_bus,struct cx231xx_i2c_xfer_data * req_data)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 if (dev->state & DEV_DISCONNECTED)
169 return -ENODEV;
170
171 /* Get the I2C period, nostop and reserve parameters */
172 _i2c_period = i2c_bus->i2c_period;
173 _i2c_nostop = i2c_bus->i2c_nostop;
174 _i2c_reserve = i2c_bus->i2c_reserve;
175
176 saddr_len = req_data->saddr_len;
177
178 /* Set wValue */
179 ven_req.wValue = (req_data->dev_addr << 9 | _i2c_period << 4 |
180 saddr_len << 2 | _i2c_nostop << 1 | I2C_SYNC |
181 _i2c_reserve << 6);
182
183 /* set channel number */
184 if (req_data->direction & I2C_M_RD) {
185 /* channel number, for read,spec required channel_num +4 */
186 ven_req.bRequest = i2c_bus->nr + 4;
187 } else
188 ven_req.bRequest = i2c_bus->nr; /* channel number, */
189
190 /* set index value */
191 switch (saddr_len) {
192 case 0:
193 ven_req.wIndex = 0; /* need check */
194 break;
195 case 1:
196 ven_req.wIndex = (req_data->saddr_dat & 0xff);
197 break;
198 case 2:
199 ven_req.wIndex = req_data->saddr_dat;
200 break;
201 }
202
203 /* set wLength value */
204 ven_req.wLength = req_data->buf_size;
205
206 /* set bData value */
207 ven_req.bData = 0;
208
209 /* set the direction */
210 if (req_data->direction) {
211 ven_req.direction = USB_DIR_IN;
212 memset(req_data->p_buffer, 0x00, ven_req.wLength);
213 } else
214 ven_req.direction = USB_DIR_OUT;
215
216 /* set the buffer for read / write */
217 ven_req.pBuff = req_data->p_buffer;
218
219
220 /* call common vendor command request */
221 status = cx231xx_send_vendor_cmd(dev, &ven_req);
222 if (status < 0 && !dev->i2c_scan_running) {
223 dev_err(dev->dev, "%s: failed with status -%d\n",
224 __func__, status);
225 }
226
227 return status;
228 }
229 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
230
231 /*
232 * Sends/Receives URB control messages, assuring to use a kalloced buffer
233 * for all operations (dev->urb_buf), to avoid using stacked buffers, as
234 * they aren't safe for usage with USB, due to DMA restrictions.
235 * Also implements the debug code for control URB's.
236 */
__usb_control_msg(struct cx231xx * dev,unsigned int pipe,__u8 request,__u8 requesttype,__u16 value,__u16 index,void * data,__u16 size,int timeout)237 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
238 __u8 request, __u8 requesttype, __u16 value, __u16 index,
239 void *data, __u16 size, int timeout)
240 {
241 int rc, i;
242
243 if (reg_debug) {
244 printk(KERN_DEBUG "%s: (pipe 0x%08x): %s: %02x %02x %02x %02x %02x %02x %02x %02x ",
245 dev->name,
246 pipe,
247 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
248 requesttype,
249 request,
250 value & 0xff, value >> 8,
251 index & 0xff, index >> 8,
252 size & 0xff, size >> 8);
253 if (!(requesttype & USB_DIR_IN)) {
254 printk(KERN_CONT ">>>");
255 for (i = 0; i < size; i++)
256 printk(KERN_CONT " %02x",
257 ((unsigned char *)data)[i]);
258 }
259 }
260
261 /* Do the real call to usb_control_msg */
262 mutex_lock(&dev->ctrl_urb_lock);
263 if (!(requesttype & USB_DIR_IN) && size)
264 memcpy(dev->urb_buf, data, size);
265 rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
266 index, dev->urb_buf, size, timeout);
267 if ((requesttype & USB_DIR_IN) && size)
268 memcpy(data, dev->urb_buf, size);
269 mutex_unlock(&dev->ctrl_urb_lock);
270
271 if (reg_debug) {
272 if (unlikely(rc < 0)) {
273 printk(KERN_CONT "FAILED!\n");
274 return rc;
275 }
276
277 if ((requesttype & USB_DIR_IN)) {
278 printk(KERN_CONT "<<<");
279 for (i = 0; i < size; i++)
280 printk(KERN_CONT " %02x",
281 ((unsigned char *)data)[i]);
282 }
283 printk(KERN_CONT "\n");
284 }
285
286 return rc;
287 }
288
289
290 /*
291 * cx231xx_read_ctrl_reg()
292 * reads data from the usb device specifying bRequest and wValue
293 */
cx231xx_read_ctrl_reg(struct cx231xx * dev,u8 req,u16 reg,char * buf,int len)294 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
295 char *buf, int len)
296 {
297 u8 val = 0;
298 int ret;
299 int pipe = usb_rcvctrlpipe(dev->udev, 0);
300
301 if (dev->state & DEV_DISCONNECTED)
302 return -ENODEV;
303
304 if (len > URB_MAX_CTRL_SIZE)
305 return -EINVAL;
306
307 switch (len) {
308 case 1:
309 val = ENABLE_ONE_BYTE;
310 break;
311 case 2:
312 val = ENABLE_TWE_BYTE;
313 break;
314 case 3:
315 val = ENABLE_THREE_BYTE;
316 break;
317 case 4:
318 val = ENABLE_FOUR_BYTE;
319 break;
320 default:
321 val = 0xFF; /* invalid option */
322 }
323
324 if (val == 0xFF)
325 return -EINVAL;
326
327 ret = __usb_control_msg(dev, pipe, req,
328 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
329 val, reg, buf, len, HZ);
330 return ret;
331 }
332
cx231xx_send_vendor_cmd(struct cx231xx * dev,struct VENDOR_REQUEST_IN * ven_req)333 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
334 struct VENDOR_REQUEST_IN *ven_req)
335 {
336 int ret;
337 int pipe = 0;
338 int unsend_size = 0;
339 u8 *pdata;
340
341 if (dev->state & DEV_DISCONNECTED)
342 return -ENODEV;
343
344 if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
345 return -EINVAL;
346
347 if (ven_req->direction)
348 pipe = usb_rcvctrlpipe(dev->udev, 0);
349 else
350 pipe = usb_sndctrlpipe(dev->udev, 0);
351
352 /*
353 * If the cx23102 read more than 4 bytes with i2c bus,
354 * need chop to 4 byte per request
355 */
356 if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
357 (ven_req->bRequest == 0x5) ||
358 (ven_req->bRequest == 0x6) ||
359
360 /* Internal Master 3 Bus can send
361 * and receive only 4 bytes per time
362 */
363 (ven_req->bRequest == 0x2))) {
364 unsend_size = 0;
365 pdata = ven_req->pBuff;
366
367
368 unsend_size = ven_req->wLength;
369
370 /* the first package */
371 ven_req->wValue = ven_req->wValue & 0xFFFB;
372 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
373 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
374 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
375 ven_req->wValue, ven_req->wIndex, pdata,
376 0x0004, HZ);
377 unsend_size = unsend_size - 4;
378
379 /* the middle package */
380 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
381 while (unsend_size - 4 > 0) {
382 pdata = pdata + 4;
383 ret = __usb_control_msg(dev, pipe,
384 ven_req->bRequest,
385 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
386 ven_req->wValue, ven_req->wIndex, pdata,
387 0x0004, HZ);
388 unsend_size = unsend_size - 4;
389 }
390
391 /* the last package */
392 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
393 pdata = pdata + 4;
394 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
395 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
396 ven_req->wValue, ven_req->wIndex, pdata,
397 unsend_size, HZ);
398 } else {
399 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
400 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
401 ven_req->wValue, ven_req->wIndex,
402 ven_req->pBuff, ven_req->wLength, HZ);
403 }
404
405 return ret;
406 }
407
408 /*
409 * cx231xx_write_ctrl_reg()
410 * sends data to the usb device, specifying bRequest
411 */
cx231xx_write_ctrl_reg(struct cx231xx * dev,u8 req,u16 reg,char * buf,int len)412 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
413 int len)
414 {
415 u8 val = 0;
416 int ret;
417 int pipe = usb_sndctrlpipe(dev->udev, 0);
418
419 if (dev->state & DEV_DISCONNECTED)
420 return -ENODEV;
421
422 if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
423 return -EINVAL;
424
425 switch (len) {
426 case 1:
427 val = ENABLE_ONE_BYTE;
428 break;
429 case 2:
430 val = ENABLE_TWE_BYTE;
431 break;
432 case 3:
433 val = ENABLE_THREE_BYTE;
434 break;
435 case 4:
436 val = ENABLE_FOUR_BYTE;
437 break;
438 default:
439 val = 0xFF; /* invalid option */
440 }
441
442 if (val == 0xFF)
443 return -EINVAL;
444
445 if (reg_debug) {
446 int byte;
447
448 cx231xx_isocdbg("(pipe 0x%08x): OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
449 pipe,
450 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
451 req, 0, val, reg & 0xff,
452 reg >> 8, len & 0xff, len >> 8);
453
454 for (byte = 0; byte < len; byte++)
455 cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
456 cx231xx_isocdbg("\n");
457 }
458
459 ret = __usb_control_msg(dev, pipe, req,
460 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
461 val, reg, buf, len, HZ);
462
463 return ret;
464 }
465
466 /****************************************************************
467 * USB Alternate Setting functions *
468 *****************************************************************/
469
cx231xx_set_video_alternate(struct cx231xx * dev)470 int cx231xx_set_video_alternate(struct cx231xx *dev)
471 {
472 int errCode, prev_alt = dev->video_mode.alt;
473 unsigned int min_pkt_size = dev->width * 2 + 4;
474 u32 usb_interface_index = 0;
475
476 /* When image size is bigger than a certain value,
477 the frame size should be increased, otherwise, only
478 green screen will be received.
479 */
480 if (dev->width * 2 * dev->height > 720 * 240 * 2)
481 min_pkt_size *= 2;
482
483 if (dev->width > 360) {
484 /* resolutions: 720,704,640 */
485 dev->video_mode.alt = 3;
486 } else if (dev->width > 180) {
487 /* resolutions: 360,352,320,240 */
488 dev->video_mode.alt = 2;
489 } else if (dev->width > 0) {
490 /* resolutions: 180,176,160,128,88 */
491 dev->video_mode.alt = 1;
492 } else {
493 /* Change to alt0 BULK to release USB bandwidth */
494 dev->video_mode.alt = 0;
495 }
496
497 if (dev->USE_ISO == 0)
498 dev->video_mode.alt = 0;
499
500 cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
501
502 /* Get the correct video interface Index */
503 usb_interface_index =
504 dev->current_pcb_config.hs_config_info[0].interface_info.
505 video_index + 1;
506
507 if (dev->video_mode.alt != prev_alt) {
508 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
509 min_pkt_size, dev->video_mode.alt);
510
511 if (dev->video_mode.alt_max_pkt_size != NULL)
512 dev->video_mode.max_pkt_size =
513 dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
514 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
515 dev->video_mode.alt,
516 dev->video_mode.max_pkt_size);
517 errCode =
518 usb_set_interface(dev->udev, usb_interface_index,
519 dev->video_mode.alt);
520 if (errCode < 0) {
521 dev_err(dev->dev,
522 "cannot change alt number to %d (error=%i)\n",
523 dev->video_mode.alt, errCode);
524 return errCode;
525 }
526 }
527 return 0;
528 }
529
cx231xx_set_alt_setting(struct cx231xx * dev,u8 index,u8 alt)530 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
531 {
532 int status = 0;
533 u32 usb_interface_index = 0;
534 u32 max_pkt_size = 0;
535
536 switch (index) {
537 case INDEX_TS1:
538 usb_interface_index =
539 dev->current_pcb_config.hs_config_info[0].interface_info.
540 ts1_index + 1;
541 dev->ts1_mode.alt = alt;
542 if (dev->ts1_mode.alt_max_pkt_size != NULL)
543 max_pkt_size = dev->ts1_mode.max_pkt_size =
544 dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
545 break;
546 case INDEX_TS2:
547 usb_interface_index =
548 dev->current_pcb_config.hs_config_info[0].interface_info.
549 ts2_index + 1;
550 break;
551 case INDEX_AUDIO:
552 usb_interface_index =
553 dev->current_pcb_config.hs_config_info[0].interface_info.
554 audio_index + 1;
555 dev->adev.alt = alt;
556 if (dev->adev.alt_max_pkt_size != NULL)
557 max_pkt_size = dev->adev.max_pkt_size =
558 dev->adev.alt_max_pkt_size[dev->adev.alt];
559 break;
560 case INDEX_VIDEO:
561 usb_interface_index =
562 dev->current_pcb_config.hs_config_info[0].interface_info.
563 video_index + 1;
564 dev->video_mode.alt = alt;
565 if (dev->video_mode.alt_max_pkt_size != NULL)
566 max_pkt_size = dev->video_mode.max_pkt_size =
567 dev->video_mode.alt_max_pkt_size[dev->video_mode.
568 alt];
569 break;
570 case INDEX_VANC:
571 if (dev->board.no_alt_vanc)
572 return 0;
573 usb_interface_index =
574 dev->current_pcb_config.hs_config_info[0].interface_info.
575 vanc_index + 1;
576 dev->vbi_mode.alt = alt;
577 if (dev->vbi_mode.alt_max_pkt_size != NULL)
578 max_pkt_size = dev->vbi_mode.max_pkt_size =
579 dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
580 break;
581 case INDEX_HANC:
582 usb_interface_index =
583 dev->current_pcb_config.hs_config_info[0].interface_info.
584 hanc_index + 1;
585 dev->sliced_cc_mode.alt = alt;
586 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
587 max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
588 dev->sliced_cc_mode.alt_max_pkt_size[dev->
589 sliced_cc_mode.
590 alt];
591 break;
592 default:
593 break;
594 }
595
596 if (alt > 0 && max_pkt_size == 0) {
597 dev_err(dev->dev,
598 "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
599 usb_interface_index, alt);
600 /*To workaround error number=-71 on EP0 for videograbber,
601 need add following codes.*/
602 if (dev->board.no_alt_vanc)
603 return -1;
604 }
605
606 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,Interface = %d\n",
607 alt, max_pkt_size,
608 usb_interface_index);
609
610 if (usb_interface_index > 0) {
611 status = usb_set_interface(dev->udev, usb_interface_index, alt);
612 if (status < 0) {
613 dev_err(dev->dev,
614 "can't change interface %d alt no. to %d (err=%i)\n",
615 usb_interface_index, alt, status);
616 return status;
617 }
618 }
619
620 return status;
621 }
622 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
623
cx231xx_gpio_set(struct cx231xx * dev,struct cx231xx_reg_seq * gpio)624 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
625 {
626 int rc = 0;
627
628 if (!gpio)
629 return rc;
630
631 /* Send GPIO reset sequences specified at board entry */
632 while (gpio->sleep >= 0) {
633 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
634 if (rc < 0)
635 return rc;
636
637 if (gpio->sleep > 0)
638 msleep(gpio->sleep);
639
640 gpio++;
641 }
642 return rc;
643 }
644
cx231xx_demod_reset(struct cx231xx * dev)645 int cx231xx_demod_reset(struct cx231xx *dev)
646 {
647
648 u8 status = 0;
649 u8 value[4] = { 0, 0, 0, 0 };
650
651 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
652 value, 4);
653
654 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
655 value[0], value[1], value[2], value[3]);
656
657 cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
658
659 value[1] = (u8) 0x3;
660 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
661 PWR_CTL_EN, value, 4);
662 msleep(10);
663
664 value[1] = (u8) 0x0;
665 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
666 PWR_CTL_EN, value, 4);
667 msleep(10);
668
669 value[1] = (u8) 0x3;
670 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
671 PWR_CTL_EN, value, 4);
672 msleep(10);
673
674 status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
675 value, 4);
676
677 cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
678 value[0], value[1], value[2], value[3]);
679
680 return status;
681 }
682 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
is_fw_load(struct cx231xx * dev)683 int is_fw_load(struct cx231xx *dev)
684 {
685 return cx231xx_check_fw(dev);
686 }
687 EXPORT_SYMBOL_GPL(is_fw_load);
688
cx231xx_set_mode(struct cx231xx * dev,enum cx231xx_mode set_mode)689 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
690 {
691 int errCode = 0;
692
693 if (dev->mode == set_mode)
694 return 0;
695
696 if (set_mode == CX231XX_SUSPEND) {
697 /* Set the chip in power saving mode */
698 dev->mode = set_mode;
699 }
700
701 /* Resource is locked */
702 if (dev->mode != CX231XX_SUSPEND)
703 return -EINVAL;
704
705 dev->mode = set_mode;
706
707 if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
708 /* set AGC mode to Digital */
709 switch (dev->model) {
710 case CX231XX_BOARD_CNXT_CARRAERA:
711 case CX231XX_BOARD_CNXT_RDE_250:
712 case CX231XX_BOARD_CNXT_SHELBY:
713 case CX231XX_BOARD_CNXT_RDU_250:
714 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
715 break;
716 case CX231XX_BOARD_CNXT_RDE_253S:
717 case CX231XX_BOARD_CNXT_RDU_253S:
718 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
719 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
720 break;
721 case CX231XX_BOARD_HAUPPAUGE_EXETER:
722 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
723 errCode = cx231xx_set_power_mode(dev,
724 POLARIS_AVMODE_DIGITAL);
725 break;
726 default:
727 break;
728 }
729 } else/* Set Analog Power mode */ {
730 /* set AGC mode to Analog */
731 switch (dev->model) {
732 case CX231XX_BOARD_CNXT_CARRAERA:
733 case CX231XX_BOARD_CNXT_RDE_250:
734 case CX231XX_BOARD_CNXT_SHELBY:
735 case CX231XX_BOARD_CNXT_RDU_250:
736 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
737 break;
738 case CX231XX_BOARD_CNXT_RDE_253S:
739 case CX231XX_BOARD_CNXT_RDU_253S:
740 case CX231XX_BOARD_HAUPPAUGE_EXETER:
741 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
742 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
743 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
744 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
745 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
746 break;
747 default:
748 break;
749 }
750 }
751
752 if (errCode < 0) {
753 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
754 dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
755 errCode);
756 return errCode;
757 }
758
759 return 0;
760 }
761 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
762
cx231xx_ep5_bulkout(struct cx231xx * dev,u8 * firmware,u16 size)763 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
764 {
765 int errCode = 0;
766 int actlen = -1;
767 int ret = -ENOMEM;
768 u32 *buffer;
769
770 buffer = kzalloc(4096, GFP_KERNEL);
771 if (buffer == NULL)
772 return -ENOMEM;
773 memcpy(&buffer[0], firmware, 4096);
774
775 ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
776 buffer, 4096, &actlen, 2000);
777
778 if (ret)
779 dev_err(dev->dev,
780 "bulk message failed: %d (%d/%d)", ret,
781 size, actlen);
782 else {
783 errCode = actlen != size ? -1 : 0;
784 }
785 kfree(buffer);
786 return errCode;
787 }
788
789 /*****************************************************************
790 * URB Streaming functions *
791 ******************************************************************/
792
793 /*
794 * IRQ callback, called by URB callback
795 */
cx231xx_isoc_irq_callback(struct urb * urb)796 static void cx231xx_isoc_irq_callback(struct urb *urb)
797 {
798 struct cx231xx_dmaqueue *dma_q = urb->context;
799 struct cx231xx_video_mode *vmode =
800 container_of(dma_q, struct cx231xx_video_mode, vidq);
801 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
802 unsigned long flags;
803 int i;
804
805 switch (urb->status) {
806 case 0: /* success */
807 case -ETIMEDOUT: /* NAK */
808 break;
809 case -ECONNRESET: /* kill */
810 case -ENOENT:
811 case -ESHUTDOWN:
812 return;
813 default: /* error */
814 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
815 break;
816 }
817
818 /* Copy data from URB */
819 spin_lock_irqsave(&dev->video_mode.slock, flags);
820 dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
821 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
822
823 /* Reset urb buffers */
824 for (i = 0; i < urb->number_of_packets; i++) {
825 urb->iso_frame_desc[i].status = 0;
826 urb->iso_frame_desc[i].actual_length = 0;
827 }
828
829 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
830 if (urb->status) {
831 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
832 urb->status);
833 }
834 }
835 /*****************************************************************
836 * URB Streaming functions *
837 ******************************************************************/
838
839 /*
840 * IRQ callback, called by URB callback
841 */
cx231xx_bulk_irq_callback(struct urb * urb)842 static void cx231xx_bulk_irq_callback(struct urb *urb)
843 {
844 struct cx231xx_dmaqueue *dma_q = urb->context;
845 struct cx231xx_video_mode *vmode =
846 container_of(dma_q, struct cx231xx_video_mode, vidq);
847 struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
848 unsigned long flags;
849
850 switch (urb->status) {
851 case 0: /* success */
852 case -ETIMEDOUT: /* NAK */
853 break;
854 case -ECONNRESET: /* kill */
855 case -ENOENT:
856 case -ESHUTDOWN:
857 return;
858 case -EPIPE: /* stall */
859 cx231xx_isocdbg("urb completion error - device is stalled.\n");
860 return;
861 default: /* error */
862 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
863 break;
864 }
865
866 /* Copy data from URB */
867 spin_lock_irqsave(&dev->video_mode.slock, flags);
868 dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
869 spin_unlock_irqrestore(&dev->video_mode.slock, flags);
870
871 /* Reset urb buffers */
872 urb->status = usb_submit_urb(urb, GFP_ATOMIC);
873 if (urb->status) {
874 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
875 urb->status);
876 }
877 }
878 /*
879 * Stop and Deallocate URBs
880 */
cx231xx_uninit_isoc(struct cx231xx * dev)881 void cx231xx_uninit_isoc(struct cx231xx *dev)
882 {
883 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
884 struct urb *urb;
885 int i;
886 bool broken_pipe = false;
887
888 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
889
890 dev->video_mode.isoc_ctl.nfields = -1;
891 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
892 urb = dev->video_mode.isoc_ctl.urb[i];
893 if (urb) {
894 if (!irqs_disabled())
895 usb_kill_urb(urb);
896 else
897 usb_unlink_urb(urb);
898
899 if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
900 usb_free_coherent(dev->udev,
901 urb->transfer_buffer_length,
902 dev->video_mode.isoc_ctl.
903 transfer_buffer[i],
904 urb->transfer_dma);
905 }
906 if (urb->status == -EPIPE) {
907 broken_pipe = true;
908 }
909 usb_free_urb(urb);
910 dev->video_mode.isoc_ctl.urb[i] = NULL;
911 }
912 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
913 }
914
915 if (broken_pipe) {
916 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
917 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
918 }
919 kfree(dev->video_mode.isoc_ctl.urb);
920 kfree(dev->video_mode.isoc_ctl.transfer_buffer);
921 kfree(dma_q->p_left_data);
922
923 dev->video_mode.isoc_ctl.urb = NULL;
924 dev->video_mode.isoc_ctl.transfer_buffer = NULL;
925 dev->video_mode.isoc_ctl.num_bufs = 0;
926 dma_q->p_left_data = NULL;
927
928 if (dev->mode_tv == 0)
929 cx231xx_capture_start(dev, 0, Raw_Video);
930 else
931 cx231xx_capture_start(dev, 0, TS1_serial_mode);
932
933
934 }
935 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
936
937 /*
938 * Stop and Deallocate URBs
939 */
cx231xx_uninit_bulk(struct cx231xx * dev)940 void cx231xx_uninit_bulk(struct cx231xx *dev)
941 {
942 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
943 struct urb *urb;
944 int i;
945 bool broken_pipe = false;
946
947 cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
948
949 dev->video_mode.bulk_ctl.nfields = -1;
950 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
951 urb = dev->video_mode.bulk_ctl.urb[i];
952 if (urb) {
953 if (!irqs_disabled())
954 usb_kill_urb(urb);
955 else
956 usb_unlink_urb(urb);
957
958 if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
959 usb_free_coherent(dev->udev,
960 urb->transfer_buffer_length,
961 dev->video_mode.bulk_ctl.
962 transfer_buffer[i],
963 urb->transfer_dma);
964 }
965 if (urb->status == -EPIPE) {
966 broken_pipe = true;
967 }
968 usb_free_urb(urb);
969 dev->video_mode.bulk_ctl.urb[i] = NULL;
970 }
971 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
972 }
973
974 if (broken_pipe) {
975 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
976 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
977 }
978 kfree(dev->video_mode.bulk_ctl.urb);
979 kfree(dev->video_mode.bulk_ctl.transfer_buffer);
980 kfree(dma_q->p_left_data);
981
982 dev->video_mode.bulk_ctl.urb = NULL;
983 dev->video_mode.bulk_ctl.transfer_buffer = NULL;
984 dev->video_mode.bulk_ctl.num_bufs = 0;
985 dma_q->p_left_data = NULL;
986
987 if (dev->mode_tv == 0)
988 cx231xx_capture_start(dev, 0, Raw_Video);
989 else
990 cx231xx_capture_start(dev, 0, TS1_serial_mode);
991
992
993 }
994 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
995
996 /*
997 * Allocate URBs and start IRQ
998 */
cx231xx_init_isoc(struct cx231xx * dev,int max_packets,int num_bufs,int max_pkt_size,int (* isoc_copy)(struct cx231xx * dev,struct urb * urb))999 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
1000 int num_bufs, int max_pkt_size,
1001 int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
1002 {
1003 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1004 int i;
1005 int sb_size, pipe;
1006 struct urb *urb;
1007 int j, k;
1008 int rc;
1009
1010 /* De-allocates all pending stuff */
1011 cx231xx_uninit_isoc(dev);
1012
1013 dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1014 if (dma_q->p_left_data == NULL)
1015 return -ENOMEM;
1016
1017 dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1018 dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1019 dma_q->pos = 0;
1020 dma_q->is_partial_line = 0;
1021 dma_q->last_sav = 0;
1022 dma_q->current_field = -1;
1023 dma_q->field1_done = 0;
1024 dma_q->lines_per_field = dev->height / 2;
1025 dma_q->bytes_left_in_line = dev->width << 1;
1026 dma_q->lines_completed = 0;
1027 dma_q->mpeg_buffer_done = 0;
1028 dma_q->left_data_count = 0;
1029 dma_q->mpeg_buffer_completed = 0;
1030 dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1031 dma_q->ps_head[0] = 0x00;
1032 dma_q->ps_head[1] = 0x00;
1033 dma_q->ps_head[2] = 0x01;
1034 dma_q->ps_head[3] = 0xBA;
1035 for (i = 0; i < 8; i++)
1036 dma_q->partial_buf[i] = 0;
1037
1038 dev->video_mode.isoc_ctl.urb =
1039 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1040 if (!dev->video_mode.isoc_ctl.urb) {
1041 dev_err(dev->dev,
1042 "cannot alloc memory for usb buffers\n");
1043 return -ENOMEM;
1044 }
1045
1046 dev->video_mode.isoc_ctl.transfer_buffer =
1047 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1048 if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1049 dev_err(dev->dev,
1050 "cannot allocate memory for usbtransfer\n");
1051 kfree(dev->video_mode.isoc_ctl.urb);
1052 return -ENOMEM;
1053 }
1054
1055 dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1056 dev->video_mode.isoc_ctl.buf = NULL;
1057
1058 sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1059
1060 if (dev->mode_tv == 1)
1061 dev->video_mode.end_point_addr = 0x81;
1062 else
1063 dev->video_mode.end_point_addr = 0x84;
1064
1065
1066 /* allocate urbs and transfer buffers */
1067 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1068 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1069 if (!urb) {
1070 cx231xx_uninit_isoc(dev);
1071 return -ENOMEM;
1072 }
1073 dev->video_mode.isoc_ctl.urb[i] = urb;
1074
1075 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1076 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1077 &urb->transfer_dma);
1078 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1079 dev_err(dev->dev,
1080 "unable to allocate %i bytes for transfer buffer %i%s\n",
1081 sb_size, i,
1082 in_interrupt() ? " while in int" : "");
1083 cx231xx_uninit_isoc(dev);
1084 return -ENOMEM;
1085 }
1086 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1087
1088 pipe =
1089 usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1090
1091 usb_fill_int_urb(urb, dev->udev, pipe,
1092 dev->video_mode.isoc_ctl.transfer_buffer[i],
1093 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1094
1095 urb->number_of_packets = max_packets;
1096 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1097
1098 k = 0;
1099 for (j = 0; j < max_packets; j++) {
1100 urb->iso_frame_desc[j].offset = k;
1101 urb->iso_frame_desc[j].length =
1102 dev->video_mode.isoc_ctl.max_pkt_size;
1103 k += dev->video_mode.isoc_ctl.max_pkt_size;
1104 }
1105 }
1106
1107 init_waitqueue_head(&dma_q->wq);
1108
1109 /* submit urbs and enables IRQ */
1110 for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1111 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1112 GFP_ATOMIC);
1113 if (rc) {
1114 dev_err(dev->dev,
1115 "submit of urb %i failed (error=%i)\n", i,
1116 rc);
1117 cx231xx_uninit_isoc(dev);
1118 return rc;
1119 }
1120 }
1121
1122 if (dev->mode_tv == 0)
1123 cx231xx_capture_start(dev, 1, Raw_Video);
1124 else
1125 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1126
1127 return 0;
1128 }
1129 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1130
1131 /*
1132 * Allocate URBs and start IRQ
1133 */
cx231xx_init_bulk(struct cx231xx * dev,int max_packets,int num_bufs,int max_pkt_size,int (* bulk_copy)(struct cx231xx * dev,struct urb * urb))1134 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1135 int num_bufs, int max_pkt_size,
1136 int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1137 {
1138 struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1139 int i;
1140 int sb_size, pipe;
1141 struct urb *urb;
1142 int rc;
1143
1144 dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1145
1146 cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1147
1148 video_mux(dev, dev->video_input);
1149
1150 /* De-allocates all pending stuff */
1151 cx231xx_uninit_bulk(dev);
1152
1153 dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1154 dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1155 dma_q->pos = 0;
1156 dma_q->is_partial_line = 0;
1157 dma_q->last_sav = 0;
1158 dma_q->current_field = -1;
1159 dma_q->field1_done = 0;
1160 dma_q->lines_per_field = dev->height / 2;
1161 dma_q->bytes_left_in_line = dev->width << 1;
1162 dma_q->lines_completed = 0;
1163 dma_q->mpeg_buffer_done = 0;
1164 dma_q->left_data_count = 0;
1165 dma_q->mpeg_buffer_completed = 0;
1166 dma_q->ps_head[0] = 0x00;
1167 dma_q->ps_head[1] = 0x00;
1168 dma_q->ps_head[2] = 0x01;
1169 dma_q->ps_head[3] = 0xBA;
1170 for (i = 0; i < 8; i++)
1171 dma_q->partial_buf[i] = 0;
1172
1173 dev->video_mode.bulk_ctl.urb =
1174 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1175 if (!dev->video_mode.bulk_ctl.urb) {
1176 dev_err(dev->dev,
1177 "cannot alloc memory for usb buffers\n");
1178 return -ENOMEM;
1179 }
1180
1181 dev->video_mode.bulk_ctl.transfer_buffer =
1182 kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1183 if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1184 dev_err(dev->dev,
1185 "cannot allocate memory for usbtransfer\n");
1186 kfree(dev->video_mode.bulk_ctl.urb);
1187 return -ENOMEM;
1188 }
1189
1190 dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1191 dev->video_mode.bulk_ctl.buf = NULL;
1192
1193 sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1194
1195 if (dev->mode_tv == 1)
1196 dev->video_mode.end_point_addr = 0x81;
1197 else
1198 dev->video_mode.end_point_addr = 0x84;
1199
1200
1201 /* allocate urbs and transfer buffers */
1202 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1203 urb = usb_alloc_urb(0, GFP_KERNEL);
1204 if (!urb) {
1205 cx231xx_uninit_bulk(dev);
1206 return -ENOMEM;
1207 }
1208 dev->video_mode.bulk_ctl.urb[i] = urb;
1209 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1210
1211 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1212 usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1213 &urb->transfer_dma);
1214 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1215 dev_err(dev->dev,
1216 "unable to allocate %i bytes for transfer buffer %i%s\n",
1217 sb_size, i,
1218 in_interrupt() ? " while in int" : "");
1219 cx231xx_uninit_bulk(dev);
1220 return -ENOMEM;
1221 }
1222 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1223
1224 pipe = usb_rcvbulkpipe(dev->udev,
1225 dev->video_mode.end_point_addr);
1226 usb_fill_bulk_urb(urb, dev->udev, pipe,
1227 dev->video_mode.bulk_ctl.transfer_buffer[i],
1228 sb_size, cx231xx_bulk_irq_callback, dma_q);
1229 }
1230
1231 /* clear halt */
1232 rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1233 if (rc < 0) {
1234 dev_err(dev->dev,
1235 "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1236 rc);
1237 cx231xx_uninit_bulk(dev);
1238 return rc;
1239 }
1240
1241 init_waitqueue_head(&dma_q->wq);
1242
1243 /* submit urbs and enables IRQ */
1244 for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1245 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1246 GFP_ATOMIC);
1247 if (rc) {
1248 dev_err(dev->dev,
1249 "submit of urb %i failed (error=%i)\n", i, rc);
1250 cx231xx_uninit_bulk(dev);
1251 return rc;
1252 }
1253 }
1254
1255 if (dev->mode_tv == 0)
1256 cx231xx_capture_start(dev, 1, Raw_Video);
1257 else
1258 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1259
1260 return 0;
1261 }
1262 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
cx231xx_stop_TS1(struct cx231xx * dev)1263 void cx231xx_stop_TS1(struct cx231xx *dev)
1264 {
1265 u8 val[4] = { 0, 0, 0, 0 };
1266
1267 val[0] = 0x00;
1268 val[1] = 0x03;
1269 val[2] = 0x00;
1270 val[3] = 0x00;
1271 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1272 TS_MODE_REG, val, 4);
1273
1274 val[0] = 0x00;
1275 val[1] = 0x70;
1276 val[2] = 0x04;
1277 val[3] = 0x00;
1278 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1279 TS1_CFG_REG, val, 4);
1280 }
1281 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
cx231xx_start_TS1(struct cx231xx * dev)1282 void cx231xx_start_TS1(struct cx231xx *dev)
1283 {
1284 u8 val[4] = { 0, 0, 0, 0 };
1285
1286 val[0] = 0x03;
1287 val[1] = 0x03;
1288 val[2] = 0x00;
1289 val[3] = 0x00;
1290 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1291 TS_MODE_REG, val, 4);
1292
1293 val[0] = 0x04;
1294 val[1] = 0xA3;
1295 val[2] = 0x3B;
1296 val[3] = 0x00;
1297 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1298 TS1_CFG_REG, val, 4);
1299 }
1300 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1301 /*****************************************************************
1302 * Device Init/UnInit functions *
1303 ******************************************************************/
cx231xx_dev_init(struct cx231xx * dev)1304 int cx231xx_dev_init(struct cx231xx *dev)
1305 {
1306 int errCode = 0;
1307
1308 /* Initialize I2C bus */
1309
1310 /* External Master 1 Bus */
1311 dev->i2c_bus[0].nr = 0;
1312 dev->i2c_bus[0].dev = dev;
1313 dev->i2c_bus[0].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1314 dev->i2c_bus[0].i2c_nostop = 0;
1315 dev->i2c_bus[0].i2c_reserve = 0;
1316 dev->i2c_bus[0].i2c_rc = -ENODEV;
1317
1318 /* External Master 2 Bus */
1319 dev->i2c_bus[1].nr = 1;
1320 dev->i2c_bus[1].dev = dev;
1321 dev->i2c_bus[1].i2c_period = I2C_SPEED_100K; /* 100 KHz */
1322 dev->i2c_bus[1].i2c_nostop = 0;
1323 dev->i2c_bus[1].i2c_reserve = 0;
1324 dev->i2c_bus[1].i2c_rc = -ENODEV;
1325
1326 /* Internal Master 3 Bus */
1327 dev->i2c_bus[2].nr = 2;
1328 dev->i2c_bus[2].dev = dev;
1329 dev->i2c_bus[2].i2c_period = I2C_SPEED_100K; /* 100kHz */
1330 dev->i2c_bus[2].i2c_nostop = 0;
1331 dev->i2c_bus[2].i2c_reserve = 0;
1332 dev->i2c_bus[2].i2c_rc = -ENODEV;
1333
1334 /* register I2C buses */
1335 errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1336 if (errCode < 0)
1337 return errCode;
1338 errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1339 if (errCode < 0)
1340 return errCode;
1341 errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1342 if (errCode < 0)
1343 return errCode;
1344
1345 errCode = cx231xx_i2c_mux_create(dev);
1346 if (errCode < 0) {
1347 dev_err(dev->dev,
1348 "%s: Failed to create I2C mux\n", __func__);
1349 return errCode;
1350 }
1351 errCode = cx231xx_i2c_mux_register(dev, 0);
1352 if (errCode < 0)
1353 return errCode;
1354
1355 errCode = cx231xx_i2c_mux_register(dev, 1);
1356 if (errCode < 0)
1357 return errCode;
1358
1359 /* scan the real bus segments in the order of physical port numbers */
1360 cx231xx_do_i2c_scan(dev, I2C_0);
1361 cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1362 cx231xx_do_i2c_scan(dev, I2C_2);
1363 cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1364
1365 /* init hardware */
1366 /* Note : with out calling set power mode function,
1367 afe can not be set up correctly */
1368 if (dev->board.external_av) {
1369 errCode = cx231xx_set_power_mode(dev,
1370 POLARIS_AVMODE_ENXTERNAL_AV);
1371 if (errCode < 0) {
1372 dev_err(dev->dev,
1373 "%s: Failed to set Power - errCode [%d]!\n",
1374 __func__, errCode);
1375 return errCode;
1376 }
1377 } else {
1378 errCode = cx231xx_set_power_mode(dev,
1379 POLARIS_AVMODE_ANALOGT_TV);
1380 if (errCode < 0) {
1381 dev_err(dev->dev,
1382 "%s: Failed to set Power - errCode [%d]!\n",
1383 __func__, errCode);
1384 return errCode;
1385 }
1386 }
1387
1388 /* reset the Tuner, if it is a Xceive tuner */
1389 if ((dev->board.tuner_type == TUNER_XC5000) ||
1390 (dev->board.tuner_type == TUNER_XC2028))
1391 cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1392
1393 /* initialize Colibri block */
1394 errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1395 if (errCode < 0) {
1396 dev_err(dev->dev,
1397 "%s: cx231xx_afe init super block - errCode [%d]!\n",
1398 __func__, errCode);
1399 return errCode;
1400 }
1401 errCode = cx231xx_afe_init_channels(dev);
1402 if (errCode < 0) {
1403 dev_err(dev->dev,
1404 "%s: cx231xx_afe init channels - errCode [%d]!\n",
1405 __func__, errCode);
1406 return errCode;
1407 }
1408
1409 /* Set DIF in By pass mode */
1410 errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1411 if (errCode < 0) {
1412 dev_err(dev->dev,
1413 "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1414 __func__, errCode);
1415 return errCode;
1416 }
1417
1418 /* I2S block related functions */
1419 errCode = cx231xx_i2s_blk_initialize(dev);
1420 if (errCode < 0) {
1421 dev_err(dev->dev,
1422 "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1423 __func__, errCode);
1424 return errCode;
1425 }
1426
1427 /* init control pins */
1428 errCode = cx231xx_init_ctrl_pin_status(dev);
1429 if (errCode < 0) {
1430 dev_err(dev->dev,
1431 "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1432 __func__, errCode);
1433 return errCode;
1434 }
1435
1436 /* set AGC mode to Analog */
1437 switch (dev->model) {
1438 case CX231XX_BOARD_CNXT_CARRAERA:
1439 case CX231XX_BOARD_CNXT_RDE_250:
1440 case CX231XX_BOARD_CNXT_SHELBY:
1441 case CX231XX_BOARD_CNXT_RDU_250:
1442 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1443 break;
1444 case CX231XX_BOARD_CNXT_RDE_253S:
1445 case CX231XX_BOARD_CNXT_RDU_253S:
1446 case CX231XX_BOARD_HAUPPAUGE_EXETER:
1447 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1448 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1449 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1450 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1451 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1452 break;
1453 default:
1454 break;
1455 }
1456 if (errCode < 0) {
1457 dev_err(dev->dev,
1458 "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1459 __func__, errCode);
1460 return errCode;
1461 }
1462
1463 /* set all alternate settings to zero initially */
1464 cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1465 cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1466 cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1467 if (dev->board.has_dvb)
1468 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1469
1470 errCode = 0;
1471 return errCode;
1472 }
1473 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1474
cx231xx_dev_uninit(struct cx231xx * dev)1475 void cx231xx_dev_uninit(struct cx231xx *dev)
1476 {
1477 /* Un Initialize I2C bus */
1478 cx231xx_i2c_mux_unregister(dev);
1479 cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1480 cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1481 cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1482 }
1483 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1484
1485 /*****************************************************************
1486 * G P I O related functions *
1487 ******************************************************************/
cx231xx_send_gpio_cmd(struct cx231xx * dev,u32 gpio_bit,u8 * gpio_val,u8 len,u8 request,u8 direction)1488 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1489 u8 len, u8 request, u8 direction)
1490 {
1491 int status = 0;
1492 struct VENDOR_REQUEST_IN ven_req;
1493
1494 /* Set wValue */
1495 ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1496
1497 /* set request */
1498 if (!request) {
1499 if (direction)
1500 ven_req.bRequest = VRT_GET_GPIO; /* 0x9 gpio */
1501 else
1502 ven_req.bRequest = VRT_SET_GPIO; /* 0x8 gpio */
1503 } else {
1504 if (direction)
1505 ven_req.bRequest = VRT_GET_GPIE; /* 0xb gpie */
1506 else
1507 ven_req.bRequest = VRT_SET_GPIE; /* 0xa gpie */
1508 }
1509
1510 /* set index value */
1511 ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1512
1513 /* set wLength value */
1514 ven_req.wLength = len;
1515
1516 /* set bData value */
1517 ven_req.bData = 0;
1518
1519 /* set the buffer for read / write */
1520 ven_req.pBuff = gpio_val;
1521
1522 /* set the direction */
1523 if (direction) {
1524 ven_req.direction = USB_DIR_IN;
1525 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1526 } else
1527 ven_req.direction = USB_DIR_OUT;
1528
1529
1530 /* call common vendor command request */
1531 status = cx231xx_send_vendor_cmd(dev, &ven_req);
1532 if (status < 0) {
1533 dev_err(dev->dev, "%s: failed with status -%d\n",
1534 __func__, status);
1535 }
1536
1537 return status;
1538 }
1539 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1540
1541 /*****************************************************************
1542 * C O N T R O L - Register R E A D / W R I T E functions *
1543 *****************************************************************/
cx231xx_mode_register(struct cx231xx * dev,u16 address,u32 mode)1544 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1545 {
1546 u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1547 u32 tmp = 0;
1548 int status = 0;
1549
1550 status =
1551 cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1552 if (status < 0)
1553 return status;
1554
1555 tmp = le32_to_cpu(*((__le32 *) value));
1556 tmp |= mode;
1557
1558 value[0] = (u8) tmp;
1559 value[1] = (u8) (tmp >> 8);
1560 value[2] = (u8) (tmp >> 16);
1561 value[3] = (u8) (tmp >> 24);
1562
1563 status =
1564 cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1565
1566 return status;
1567 }
1568
1569 /*****************************************************************
1570 * I 2 C Internal C O N T R O L functions *
1571 *****************************************************************/
cx231xx_read_i2c_master(struct cx231xx * dev,u8 dev_addr,u16 saddr,u8 saddr_len,u32 * data,u8 data_len,int master)1572 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1573 u8 saddr_len, u32 *data, u8 data_len, int master)
1574 {
1575 int status = 0;
1576 struct cx231xx_i2c_xfer_data req_data;
1577 u8 value[64] = "0";
1578
1579 if (saddr_len == 0)
1580 saddr = 0;
1581 else if (saddr_len == 1)
1582 saddr &= 0xff;
1583
1584 /* prepare xfer_data struct */
1585 req_data.dev_addr = dev_addr >> 1;
1586 req_data.direction = I2C_M_RD;
1587 req_data.saddr_len = saddr_len;
1588 req_data.saddr_dat = saddr;
1589 req_data.buf_size = data_len;
1590 req_data.p_buffer = (u8 *) value;
1591
1592 /* usb send command */
1593 if (master == 0)
1594 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1595 &req_data);
1596 else if (master == 1)
1597 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1598 &req_data);
1599 else if (master == 2)
1600 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1601 &req_data);
1602
1603 if (status >= 0) {
1604 /* Copy the data read back to main buffer */
1605 if (data_len == 1)
1606 *data = value[0];
1607 else if (data_len == 4)
1608 *data =
1609 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1610 << 24;
1611 else if (data_len > 4)
1612 *data = value[saddr];
1613 }
1614
1615 return status;
1616 }
1617
cx231xx_write_i2c_master(struct cx231xx * dev,u8 dev_addr,u16 saddr,u8 saddr_len,u32 data,u8 data_len,int master)1618 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1619 u8 saddr_len, u32 data, u8 data_len, int master)
1620 {
1621 int status = 0;
1622 u8 value[4] = { 0, 0, 0, 0 };
1623 struct cx231xx_i2c_xfer_data req_data;
1624
1625 value[0] = (u8) data;
1626 value[1] = (u8) (data >> 8);
1627 value[2] = (u8) (data >> 16);
1628 value[3] = (u8) (data >> 24);
1629
1630 if (saddr_len == 0)
1631 saddr = 0;
1632 else if (saddr_len == 1)
1633 saddr &= 0xff;
1634
1635 /* prepare xfer_data struct */
1636 req_data.dev_addr = dev_addr >> 1;
1637 req_data.direction = 0;
1638 req_data.saddr_len = saddr_len;
1639 req_data.saddr_dat = saddr;
1640 req_data.buf_size = data_len;
1641 req_data.p_buffer = value;
1642
1643 /* usb send command */
1644 if (master == 0)
1645 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1646 &req_data);
1647 else if (master == 1)
1648 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1649 &req_data);
1650 else if (master == 2)
1651 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1652 &req_data);
1653
1654 return status;
1655 }
1656
cx231xx_read_i2c_data(struct cx231xx * dev,u8 dev_addr,u16 saddr,u8 saddr_len,u32 * data,u8 data_len)1657 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1658 u8 saddr_len, u32 *data, u8 data_len)
1659 {
1660 int status = 0;
1661 struct cx231xx_i2c_xfer_data req_data;
1662 u8 value[4] = { 0, 0, 0, 0 };
1663
1664 if (saddr_len == 0)
1665 saddr = 0;
1666 else if (saddr_len == 1)
1667 saddr &= 0xff;
1668
1669 /* prepare xfer_data struct */
1670 req_data.dev_addr = dev_addr >> 1;
1671 req_data.direction = I2C_M_RD;
1672 req_data.saddr_len = saddr_len;
1673 req_data.saddr_dat = saddr;
1674 req_data.buf_size = data_len;
1675 req_data.p_buffer = (u8 *) value;
1676
1677 /* usb send command */
1678 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1679
1680 if (status >= 0) {
1681 /* Copy the data read back to main buffer */
1682 if (data_len == 1)
1683 *data = value[0];
1684 else
1685 *data =
1686 value[0] | value[1] << 8 | value[2] << 16 | value[3]
1687 << 24;
1688 }
1689
1690 return status;
1691 }
1692
cx231xx_write_i2c_data(struct cx231xx * dev,u8 dev_addr,u16 saddr,u8 saddr_len,u32 data,u8 data_len)1693 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1694 u8 saddr_len, u32 data, u8 data_len)
1695 {
1696 int status = 0;
1697 u8 value[4] = { 0, 0, 0, 0 };
1698 struct cx231xx_i2c_xfer_data req_data;
1699
1700 value[0] = (u8) data;
1701 value[1] = (u8) (data >> 8);
1702 value[2] = (u8) (data >> 16);
1703 value[3] = (u8) (data >> 24);
1704
1705 if (saddr_len == 0)
1706 saddr = 0;
1707 else if (saddr_len == 1)
1708 saddr &= 0xff;
1709
1710 /* prepare xfer_data struct */
1711 req_data.dev_addr = dev_addr >> 1;
1712 req_data.direction = 0;
1713 req_data.saddr_len = saddr_len;
1714 req_data.saddr_dat = saddr;
1715 req_data.buf_size = data_len;
1716 req_data.p_buffer = value;
1717
1718 /* usb send command */
1719 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1720
1721 return status;
1722 }
1723
cx231xx_reg_mask_write(struct cx231xx * dev,u8 dev_addr,u8 size,u16 register_address,u8 bit_start,u8 bit_end,u32 value)1724 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1725 u16 register_address, u8 bit_start, u8 bit_end,
1726 u32 value)
1727 {
1728 int status = 0;
1729 u32 tmp;
1730 u32 mask = 0;
1731 int i;
1732
1733 if (bit_start > (size - 1) || bit_end > (size - 1))
1734 return -1;
1735
1736 if (size == 8) {
1737 status =
1738 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1739 &tmp, 1);
1740 } else {
1741 status =
1742 cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1743 &tmp, 4);
1744 }
1745
1746 if (status < 0)
1747 return status;
1748
1749 mask = 1 << bit_end;
1750 for (i = bit_end; i > bit_start && i > 0; i--)
1751 mask = mask + (1 << (i - 1));
1752
1753 value <<= bit_start;
1754
1755 if (size == 8) {
1756 tmp &= ~mask;
1757 tmp |= value;
1758 tmp &= 0xff;
1759 status =
1760 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1761 tmp, 1);
1762 } else {
1763 tmp &= ~mask;
1764 tmp |= value;
1765 status =
1766 cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1767 tmp, 4);
1768 }
1769
1770 return status;
1771 }
1772
cx231xx_read_modify_write_i2c_dword(struct cx231xx * dev,u8 dev_addr,u16 saddr,u32 mask,u32 value)1773 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1774 u16 saddr, u32 mask, u32 value)
1775 {
1776 u32 temp;
1777 int status = 0;
1778
1779 status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1780
1781 if (status < 0)
1782 return status;
1783
1784 temp &= ~mask;
1785 temp |= value;
1786
1787 status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1788
1789 return status;
1790 }
1791
cx231xx_set_field(u32 field_mask,u32 data)1792 u32 cx231xx_set_field(u32 field_mask, u32 data)
1793 {
1794 u32 temp;
1795
1796 for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1797 data <<= 1;
1798
1799 return data;
1800 }
1801
