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
36static unsigned int core_debug;
37module_param(core_debug, int, 0644);
38MODULE_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
45static unsigned int reg_debug;
46module_param(reg_debug, int, 0644);
47MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
48
49static int alt = CX231XX_PINOUT;
50module_param(alt, int, 0644);
51MODULE_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
62LIST_HEAD(cx231xx_devlist);
63static 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*/
70void 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
85void 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
93static LIST_HEAD(cx231xx_extension_devlist);
94
95int 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}
108EXPORT_SYMBOL(cx231xx_register_extension);
109
110void 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}
123EXPORT_SYMBOL(cx231xx_unregister_extension);
124
125void 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
139void 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*****************************************************************/
156int 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}
229EXPORT_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 */
237static 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): "
245				"%s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
246				dev->name,
247				pipe,
248				(requesttype & USB_DIR_IN) ? "IN" : "OUT",
249				requesttype,
250				request,
251				value & 0xff, value >> 8,
252				index & 0xff, index >> 8,
253				size & 0xff, size >> 8);
254		if (!(requesttype & USB_DIR_IN)) {
255			printk(KERN_CONT ">>>");
256			for (i = 0; i < size; i++)
257				printk(KERN_CONT " %02x",
258				       ((unsigned char *)data)[i]);
259		}
260	}
261
262	/* Do the real call to usb_control_msg */
263	mutex_lock(&dev->ctrl_urb_lock);
264	if (!(requesttype & USB_DIR_IN) && size)
265		memcpy(dev->urb_buf, data, size);
266	rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
267			     index, dev->urb_buf, size, timeout);
268	if ((requesttype & USB_DIR_IN) && size)
269		memcpy(data, dev->urb_buf, size);
270	mutex_unlock(&dev->ctrl_urb_lock);
271
272	if (reg_debug) {
273		if (unlikely(rc < 0)) {
274			printk(KERN_CONT "FAILED!\n");
275			return rc;
276		}
277
278		if ((requesttype & USB_DIR_IN)) {
279			printk(KERN_CONT "<<<");
280			for (i = 0; i < size; i++)
281				printk(KERN_CONT " %02x",
282				       ((unsigned char *)data)[i]);
283		}
284		printk(KERN_CONT "\n");
285	}
286
287	return rc;
288}
289
290
291/*
292 * cx231xx_read_ctrl_reg()
293 * reads data from the usb device specifying bRequest and wValue
294 */
295int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
296			  char *buf, int len)
297{
298	u8 val = 0;
299	int ret;
300	int pipe = usb_rcvctrlpipe(dev->udev, 0);
301
302	if (dev->state & DEV_DISCONNECTED)
303		return -ENODEV;
304
305	if (len > URB_MAX_CTRL_SIZE)
306		return -EINVAL;
307
308	switch (len) {
309	case 1:
310		val = ENABLE_ONE_BYTE;
311		break;
312	case 2:
313		val = ENABLE_TWE_BYTE;
314		break;
315	case 3:
316		val = ENABLE_THREE_BYTE;
317		break;
318	case 4:
319		val = ENABLE_FOUR_BYTE;
320		break;
321	default:
322		val = 0xFF;	/* invalid option */
323	}
324
325	if (val == 0xFF)
326		return -EINVAL;
327
328	ret = __usb_control_msg(dev, pipe, req,
329			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
330			      val, reg, buf, len, HZ);
331	return ret;
332}
333
334int cx231xx_send_vendor_cmd(struct cx231xx *dev,
335				struct VENDOR_REQUEST_IN *ven_req)
336{
337	int ret;
338	int pipe = 0;
339	int unsend_size = 0;
340	u8 *pdata;
341
342	if (dev->state & DEV_DISCONNECTED)
343		return -ENODEV;
344
345	if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
346		return -EINVAL;
347
348	if (ven_req->direction)
349		pipe = usb_rcvctrlpipe(dev->udev, 0);
350	else
351		pipe = usb_sndctrlpipe(dev->udev, 0);
352
353	/*
354	 * If the cx23102 read more than 4 bytes with i2c bus,
355	 * need chop to 4 byte per request
356	 */
357	if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
358					(ven_req->bRequest == 0x5) ||
359					(ven_req->bRequest == 0x6))) {
360		unsend_size = 0;
361		pdata = ven_req->pBuff;
362
363
364		unsend_size = ven_req->wLength;
365
366		/* the first package */
367		ven_req->wValue = ven_req->wValue & 0xFFFB;
368		ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
369		ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
370			ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
371			ven_req->wValue, ven_req->wIndex, pdata,
372			0x0004, HZ);
373		unsend_size = unsend_size - 4;
374
375		/* the middle package */
376		ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
377		while (unsend_size - 4 > 0) {
378			pdata = pdata + 4;
379			ret = __usb_control_msg(dev, pipe,
380				ven_req->bRequest,
381				ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
382				ven_req->wValue, ven_req->wIndex, pdata,
383				0x0004, HZ);
384			unsend_size = unsend_size - 4;
385		}
386
387		/* the last package */
388		ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
389		pdata = pdata + 4;
390		ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
391			ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
392			ven_req->wValue, ven_req->wIndex, pdata,
393			unsend_size, HZ);
394	} else {
395		ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
396				ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
397				ven_req->wValue, ven_req->wIndex,
398				ven_req->pBuff, ven_req->wLength, HZ);
399	}
400
401	return ret;
402}
403
404/*
405 * cx231xx_write_ctrl_reg()
406 * sends data to the usb device, specifying bRequest
407 */
408int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
409			   int len)
410{
411	u8 val = 0;
412	int ret;
413	int pipe = usb_sndctrlpipe(dev->udev, 0);
414
415	if (dev->state & DEV_DISCONNECTED)
416		return -ENODEV;
417
418	if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
419		return -EINVAL;
420
421	switch (len) {
422	case 1:
423		val = ENABLE_ONE_BYTE;
424		break;
425	case 2:
426		val = ENABLE_TWE_BYTE;
427		break;
428	case 3:
429		val = ENABLE_THREE_BYTE;
430		break;
431	case 4:
432		val = ENABLE_FOUR_BYTE;
433		break;
434	default:
435		val = 0xFF;	/* invalid option */
436	}
437
438	if (val == 0xFF)
439		return -EINVAL;
440
441	if (reg_debug) {
442		int byte;
443
444		cx231xx_isocdbg("(pipe 0x%08x): "
445			"OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
446			pipe,
447			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
448			req, 0, val, reg & 0xff,
449			reg >> 8, len & 0xff, len >> 8);
450
451		for (byte = 0; byte < len; byte++)
452			cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
453		cx231xx_isocdbg("\n");
454	}
455
456	ret = __usb_control_msg(dev, pipe, req,
457			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
458			      val, reg, buf, len, HZ);
459
460	return ret;
461}
462
463/****************************************************************
464*           USB Alternate Setting functions                     *
465*****************************************************************/
466
467int cx231xx_set_video_alternate(struct cx231xx *dev)
468{
469	int errCode, prev_alt = dev->video_mode.alt;
470	unsigned int min_pkt_size = dev->width * 2 + 4;
471	u32 usb_interface_index = 0;
472
473	/* When image size is bigger than a certain value,
474	   the frame size should be increased, otherwise, only
475	   green screen will be received.
476	 */
477	if (dev->width * 2 * dev->height > 720 * 240 * 2)
478		min_pkt_size *= 2;
479
480	if (dev->width > 360) {
481		/* resolutions: 720,704,640 */
482		dev->video_mode.alt = 3;
483	} else if (dev->width > 180) {
484		/* resolutions: 360,352,320,240 */
485		dev->video_mode.alt = 2;
486	} else if (dev->width > 0) {
487		/* resolutions: 180,176,160,128,88 */
488		dev->video_mode.alt = 1;
489	} else {
490		/* Change to alt0 BULK to release USB bandwidth */
491		dev->video_mode.alt = 0;
492	}
493
494	if (dev->USE_ISO == 0)
495		dev->video_mode.alt = 0;
496
497	cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
498
499	/* Get the correct video interface Index */
500	usb_interface_index =
501	    dev->current_pcb_config.hs_config_info[0].interface_info.
502	    video_index + 1;
503
504	if (dev->video_mode.alt != prev_alt) {
505		cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
506				min_pkt_size, dev->video_mode.alt);
507
508		if (dev->video_mode.alt_max_pkt_size != NULL)
509			dev->video_mode.max_pkt_size =
510			dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
511		cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
512				dev->video_mode.alt,
513				dev->video_mode.max_pkt_size);
514		errCode =
515		    usb_set_interface(dev->udev, usb_interface_index,
516				      dev->video_mode.alt);
517		if (errCode < 0) {
518			dev_err(dev->dev,
519				"cannot change alt number to %d (error=%i)\n",
520				dev->video_mode.alt, errCode);
521			return errCode;
522		}
523	}
524	return 0;
525}
526
527int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
528{
529	int status = 0;
530	u32 usb_interface_index = 0;
531	u32 max_pkt_size = 0;
532
533	switch (index) {
534	case INDEX_TS1:
535		usb_interface_index =
536		    dev->current_pcb_config.hs_config_info[0].interface_info.
537		    ts1_index + 1;
538		dev->ts1_mode.alt = alt;
539		if (dev->ts1_mode.alt_max_pkt_size != NULL)
540			max_pkt_size = dev->ts1_mode.max_pkt_size =
541			    dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
542		break;
543	case INDEX_TS2:
544		usb_interface_index =
545		    dev->current_pcb_config.hs_config_info[0].interface_info.
546		    ts2_index + 1;
547		break;
548	case INDEX_AUDIO:
549		usb_interface_index =
550		    dev->current_pcb_config.hs_config_info[0].interface_info.
551		    audio_index + 1;
552		dev->adev.alt = alt;
553		if (dev->adev.alt_max_pkt_size != NULL)
554			max_pkt_size = dev->adev.max_pkt_size =
555			    dev->adev.alt_max_pkt_size[dev->adev.alt];
556		break;
557	case INDEX_VIDEO:
558		usb_interface_index =
559		    dev->current_pcb_config.hs_config_info[0].interface_info.
560		    video_index + 1;
561		dev->video_mode.alt = alt;
562		if (dev->video_mode.alt_max_pkt_size != NULL)
563			max_pkt_size = dev->video_mode.max_pkt_size =
564			    dev->video_mode.alt_max_pkt_size[dev->video_mode.
565							     alt];
566		break;
567	case INDEX_VANC:
568		if (dev->board.no_alt_vanc)
569			return 0;
570		usb_interface_index =
571		    dev->current_pcb_config.hs_config_info[0].interface_info.
572		    vanc_index + 1;
573		dev->vbi_mode.alt = alt;
574		if (dev->vbi_mode.alt_max_pkt_size != NULL)
575			max_pkt_size = dev->vbi_mode.max_pkt_size =
576			    dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
577		break;
578	case INDEX_HANC:
579		usb_interface_index =
580		    dev->current_pcb_config.hs_config_info[0].interface_info.
581		    hanc_index + 1;
582		dev->sliced_cc_mode.alt = alt;
583		if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
584			max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
585			    dev->sliced_cc_mode.alt_max_pkt_size[dev->
586								 sliced_cc_mode.
587								 alt];
588		break;
589	default:
590		break;
591	}
592
593	if (alt > 0 && max_pkt_size == 0) {
594		dev_err(dev->dev,
595			"can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
596			usb_interface_index, alt);
597		/*To workaround error number=-71 on EP0 for videograbber,
598		 need add following codes.*/
599		if (dev->board.no_alt_vanc)
600			return -1;
601	}
602
603	cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
604			"Interface = %d\n", alt, max_pkt_size,
605			usb_interface_index);
606
607	if (usb_interface_index > 0) {
608		status = usb_set_interface(dev->udev, usb_interface_index, alt);
609		if (status < 0) {
610			dev_err(dev->dev,
611				"can't change interface %d alt no. to %d (err=%i)\n",
612				usb_interface_index, alt, status);
613			return status;
614		}
615	}
616
617	return status;
618}
619EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
620
621int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
622{
623	int rc = 0;
624
625	if (!gpio)
626		return rc;
627
628	/* Send GPIO reset sequences specified at board entry */
629	while (gpio->sleep >= 0) {
630		rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
631		if (rc < 0)
632			return rc;
633
634		if (gpio->sleep > 0)
635			msleep(gpio->sleep);
636
637		gpio++;
638	}
639	return rc;
640}
641
642int cx231xx_demod_reset(struct cx231xx *dev)
643{
644
645	u8 status = 0;
646	u8 value[4] = { 0, 0, 0, 0 };
647
648	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
649				 value, 4);
650
651	cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
652			value[0], value[1], value[2], value[3]);
653
654	cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
655
656		value[1] = (u8) 0x3;
657		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
658						PWR_CTL_EN, value, 4);
659			msleep(10);
660
661		value[1] = (u8) 0x0;
662		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
663						PWR_CTL_EN, value, 4);
664			msleep(10);
665
666		value[1] = (u8) 0x3;
667		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
668						PWR_CTL_EN, value, 4);
669			msleep(10);
670
671
672
673	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
674				 value, 4);
675
676	cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
677			value[0], value[1], value[2], value[3]);
678
679	return status;
680}
681EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
682int is_fw_load(struct cx231xx *dev)
683{
684	return cx231xx_check_fw(dev);
685}
686EXPORT_SYMBOL_GPL(is_fw_load);
687
688int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
689{
690	int errCode = 0;
691
692	if (dev->mode == set_mode)
693		return 0;
694
695	if (set_mode == CX231XX_SUSPEND) {
696		/* Set the chip in power saving mode */
697		dev->mode = set_mode;
698	}
699
700	/* Resource is locked */
701	if (dev->mode != CX231XX_SUSPEND)
702		return -EINVAL;
703
704	dev->mode = set_mode;
705
706	if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
707	/* set AGC mode to Digital */
708		switch (dev->model) {
709		case CX231XX_BOARD_CNXT_CARRAERA:
710		case CX231XX_BOARD_CNXT_RDE_250:
711		case CX231XX_BOARD_CNXT_SHELBY:
712		case CX231XX_BOARD_CNXT_RDU_250:
713		errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
714			break;
715		case CX231XX_BOARD_CNXT_RDE_253S:
716		case CX231XX_BOARD_CNXT_RDU_253S:
717			errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
718			break;
719		case CX231XX_BOARD_HAUPPAUGE_EXETER:
720		case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
721			errCode = cx231xx_set_power_mode(dev,
722						POLARIS_AVMODE_DIGITAL);
723			break;
724		default:
725			break;
726		}
727	} else/* Set Analog Power mode */ {
728	/* set AGC mode to Analog */
729		switch (dev->model) {
730		case CX231XX_BOARD_CNXT_CARRAERA:
731		case CX231XX_BOARD_CNXT_RDE_250:
732		case CX231XX_BOARD_CNXT_SHELBY:
733		case CX231XX_BOARD_CNXT_RDU_250:
734		errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
735			break;
736		case CX231XX_BOARD_CNXT_RDE_253S:
737		case CX231XX_BOARD_CNXT_RDU_253S:
738		case CX231XX_BOARD_HAUPPAUGE_EXETER:
739		case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
740		case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
741		case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
742		case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
743		errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
744			break;
745		default:
746			break;
747		}
748	}
749
750	return errCode ? -EINVAL : 0;
751}
752EXPORT_SYMBOL_GPL(cx231xx_set_mode);
753
754int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
755{
756	int errCode = 0;
757	int actlen, ret = -ENOMEM;
758	u32 *buffer;
759
760	buffer = kzalloc(4096, GFP_KERNEL);
761	if (buffer == NULL)
762		return -ENOMEM;
763	memcpy(&buffer[0], firmware, 4096);
764
765	ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
766			buffer, 4096, &actlen, 2000);
767
768	if (ret)
769		dev_err(dev->dev,
770			"bulk message failed: %d (%d/%d)", ret,
771			size, actlen);
772	else {
773		errCode = actlen != size ? -1 : 0;
774	}
775	kfree(buffer);
776	return errCode;
777}
778
779/*****************************************************************
780*                URB Streaming functions                         *
781******************************************************************/
782
783/*
784 * IRQ callback, called by URB callback
785 */
786static void cx231xx_isoc_irq_callback(struct urb *urb)
787{
788	struct cx231xx_dmaqueue *dma_q = urb->context;
789	struct cx231xx_video_mode *vmode =
790	    container_of(dma_q, struct cx231xx_video_mode, vidq);
791	struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
792	int i;
793
794	switch (urb->status) {
795	case 0:		/* success */
796	case -ETIMEDOUT:	/* NAK */
797		break;
798	case -ECONNRESET:	/* kill */
799	case -ENOENT:
800	case -ESHUTDOWN:
801		return;
802	default:		/* error */
803		cx231xx_isocdbg("urb completition error %d.\n", urb->status);
804		break;
805	}
806
807	/* Copy data from URB */
808	spin_lock(&dev->video_mode.slock);
809	dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
810	spin_unlock(&dev->video_mode.slock);
811
812	/* Reset urb buffers */
813	for (i = 0; i < urb->number_of_packets; i++) {
814		urb->iso_frame_desc[i].status = 0;
815		urb->iso_frame_desc[i].actual_length = 0;
816	}
817
818	urb->status = usb_submit_urb(urb, GFP_ATOMIC);
819	if (urb->status) {
820		cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
821				urb->status);
822	}
823}
824/*****************************************************************
825*                URB Streaming functions                         *
826******************************************************************/
827
828/*
829 * IRQ callback, called by URB callback
830 */
831static void cx231xx_bulk_irq_callback(struct urb *urb)
832{
833	struct cx231xx_dmaqueue *dma_q = urb->context;
834	struct cx231xx_video_mode *vmode =
835	    container_of(dma_q, struct cx231xx_video_mode, vidq);
836	struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
837
838	switch (urb->status) {
839	case 0:		/* success */
840	case -ETIMEDOUT:	/* NAK */
841		break;
842	case -ECONNRESET:	/* kill */
843	case -ENOENT:
844	case -ESHUTDOWN:
845		return;
846	default:		/* error */
847		cx231xx_isocdbg("urb completition error %d.\n", urb->status);
848		break;
849	}
850
851	/* Copy data from URB */
852	spin_lock(&dev->video_mode.slock);
853	dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
854	spin_unlock(&dev->video_mode.slock);
855
856	/* Reset urb buffers */
857	urb->status = usb_submit_urb(urb, GFP_ATOMIC);
858	if (urb->status) {
859		cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
860				urb->status);
861	}
862}
863/*
864 * Stop and Deallocate URBs
865 */
866void cx231xx_uninit_isoc(struct cx231xx *dev)
867{
868	struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
869	struct urb *urb;
870	int i;
871
872	cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
873
874	dev->video_mode.isoc_ctl.nfields = -1;
875	for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
876		urb = dev->video_mode.isoc_ctl.urb[i];
877		if (urb) {
878			if (!irqs_disabled())
879				usb_kill_urb(urb);
880			else
881				usb_unlink_urb(urb);
882
883			if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
884				usb_free_coherent(dev->udev,
885						  urb->transfer_buffer_length,
886						  dev->video_mode.isoc_ctl.
887						  transfer_buffer[i],
888						  urb->transfer_dma);
889			}
890			usb_free_urb(urb);
891			dev->video_mode.isoc_ctl.urb[i] = NULL;
892		}
893		dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
894	}
895
896	kfree(dev->video_mode.isoc_ctl.urb);
897	kfree(dev->video_mode.isoc_ctl.transfer_buffer);
898	kfree(dma_q->p_left_data);
899
900	dev->video_mode.isoc_ctl.urb = NULL;
901	dev->video_mode.isoc_ctl.transfer_buffer = NULL;
902	dev->video_mode.isoc_ctl.num_bufs = 0;
903	dma_q->p_left_data = NULL;
904
905	if (dev->mode_tv == 0)
906		cx231xx_capture_start(dev, 0, Raw_Video);
907	else
908		cx231xx_capture_start(dev, 0, TS1_serial_mode);
909
910
911}
912EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
913
914/*
915 * Stop and Deallocate URBs
916 */
917void cx231xx_uninit_bulk(struct cx231xx *dev)
918{
919	struct urb *urb;
920	int i;
921
922	cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
923
924	dev->video_mode.bulk_ctl.nfields = -1;
925	for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
926		urb = dev->video_mode.bulk_ctl.urb[i];
927		if (urb) {
928			if (!irqs_disabled())
929				usb_kill_urb(urb);
930			else
931				usb_unlink_urb(urb);
932
933			if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
934				usb_free_coherent(dev->udev,
935						urb->transfer_buffer_length,
936						dev->video_mode.isoc_ctl.
937						transfer_buffer[i],
938						urb->transfer_dma);
939			}
940			usb_free_urb(urb);
941			dev->video_mode.bulk_ctl.urb[i] = NULL;
942		}
943		dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
944	}
945
946	kfree(dev->video_mode.bulk_ctl.urb);
947	kfree(dev->video_mode.bulk_ctl.transfer_buffer);
948
949	dev->video_mode.bulk_ctl.urb = NULL;
950	dev->video_mode.bulk_ctl.transfer_buffer = NULL;
951	dev->video_mode.bulk_ctl.num_bufs = 0;
952
953	if (dev->mode_tv == 0)
954		cx231xx_capture_start(dev, 0, Raw_Video);
955	else
956		cx231xx_capture_start(dev, 0, TS1_serial_mode);
957
958
959}
960EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
961
962/*
963 * Allocate URBs and start IRQ
964 */
965int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
966		      int num_bufs, int max_pkt_size,
967		      int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
968{
969	struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
970	int i;
971	int sb_size, pipe;
972	struct urb *urb;
973	int j, k;
974	int rc;
975
976	/* De-allocates all pending stuff */
977	cx231xx_uninit_isoc(dev);
978
979	dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
980	if (dma_q->p_left_data == NULL)
981		return -ENOMEM;
982
983	dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
984	dev->video_mode.isoc_ctl.num_bufs = num_bufs;
985	dma_q->pos = 0;
986	dma_q->is_partial_line = 0;
987	dma_q->last_sav = 0;
988	dma_q->current_field = -1;
989	dma_q->field1_done = 0;
990	dma_q->lines_per_field = dev->height / 2;
991	dma_q->bytes_left_in_line = dev->width << 1;
992	dma_q->lines_completed = 0;
993	dma_q->mpeg_buffer_done = 0;
994	dma_q->left_data_count = 0;
995	dma_q->mpeg_buffer_completed = 0;
996	dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
997	dma_q->ps_head[0] = 0x00;
998	dma_q->ps_head[1] = 0x00;
999	dma_q->ps_head[2] = 0x01;
1000	dma_q->ps_head[3] = 0xBA;
1001	for (i = 0; i < 8; i++)
1002		dma_q->partial_buf[i] = 0;
1003
1004	dev->video_mode.isoc_ctl.urb =
1005	    kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1006	if (!dev->video_mode.isoc_ctl.urb) {
1007		dev_err(dev->dev,
1008			"cannot alloc memory for usb buffers\n");
1009		return -ENOMEM;
1010	}
1011
1012	dev->video_mode.isoc_ctl.transfer_buffer =
1013	    kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1014	if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1015		dev_err(dev->dev,
1016			"cannot allocate memory for usbtransfer\n");
1017		kfree(dev->video_mode.isoc_ctl.urb);
1018		return -ENOMEM;
1019	}
1020
1021	dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1022	dev->video_mode.isoc_ctl.buf = NULL;
1023
1024	sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1025
1026	if (dev->mode_tv == 1)
1027		dev->video_mode.end_point_addr = 0x81;
1028	else
1029		dev->video_mode.end_point_addr = 0x84;
1030
1031
1032	/* allocate urbs and transfer buffers */
1033	for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1034		urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1035		if (!urb) {
1036			dev_err(dev->dev,
1037				"cannot alloc isoc_ctl.urb %i\n", i);
1038			cx231xx_uninit_isoc(dev);
1039			return -ENOMEM;
1040		}
1041		dev->video_mode.isoc_ctl.urb[i] = urb;
1042
1043		dev->video_mode.isoc_ctl.transfer_buffer[i] =
1044		    usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1045				       &urb->transfer_dma);
1046		if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1047			dev_err(dev->dev,
1048				"unable to allocate %i bytes for transfer buffer %i%s\n",
1049				sb_size, i,
1050				in_interrupt() ? " while in int" : "");
1051			cx231xx_uninit_isoc(dev);
1052			return -ENOMEM;
1053		}
1054		memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1055
1056		pipe =
1057		    usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1058
1059		usb_fill_int_urb(urb, dev->udev, pipe,
1060				 dev->video_mode.isoc_ctl.transfer_buffer[i],
1061				 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1062
1063		urb->number_of_packets = max_packets;
1064		urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1065
1066		k = 0;
1067		for (j = 0; j < max_packets; j++) {
1068			urb->iso_frame_desc[j].offset = k;
1069			urb->iso_frame_desc[j].length =
1070			    dev->video_mode.isoc_ctl.max_pkt_size;
1071			k += dev->video_mode.isoc_ctl.max_pkt_size;
1072		}
1073	}
1074
1075	init_waitqueue_head(&dma_q->wq);
1076
1077	/* submit urbs and enables IRQ */
1078	for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1079		rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1080				    GFP_ATOMIC);
1081		if (rc) {
1082			dev_err(dev->dev,
1083				"submit of urb %i failed (error=%i)\n", i,
1084				rc);
1085			cx231xx_uninit_isoc(dev);
1086			return rc;
1087		}
1088	}
1089
1090	if (dev->mode_tv == 0)
1091		cx231xx_capture_start(dev, 1, Raw_Video);
1092	else
1093		cx231xx_capture_start(dev, 1, TS1_serial_mode);
1094
1095	return 0;
1096}
1097EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1098
1099/*
1100 * Allocate URBs and start IRQ
1101 */
1102int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1103		      int num_bufs, int max_pkt_size,
1104		      int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1105{
1106	struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1107	int i;
1108	int sb_size, pipe;
1109	struct urb *urb;
1110	int rc;
1111
1112	dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1113
1114	cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1115
1116	video_mux(dev, dev->video_input);
1117
1118	/* De-allocates all pending stuff */
1119	cx231xx_uninit_bulk(dev);
1120
1121	dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1122	dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1123	dma_q->pos = 0;
1124	dma_q->is_partial_line = 0;
1125	dma_q->last_sav = 0;
1126	dma_q->current_field = -1;
1127	dma_q->field1_done = 0;
1128	dma_q->lines_per_field = dev->height / 2;
1129	dma_q->bytes_left_in_line = dev->width << 1;
1130	dma_q->lines_completed = 0;
1131	dma_q->mpeg_buffer_done = 0;
1132	dma_q->left_data_count = 0;
1133	dma_q->mpeg_buffer_completed = 0;
1134	dma_q->ps_head[0] = 0x00;
1135	dma_q->ps_head[1] = 0x00;
1136	dma_q->ps_head[2] = 0x01;
1137	dma_q->ps_head[3] = 0xBA;
1138	for (i = 0; i < 8; i++)
1139		dma_q->partial_buf[i] = 0;
1140
1141	dev->video_mode.bulk_ctl.urb =
1142	    kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1143	if (!dev->video_mode.bulk_ctl.urb) {
1144		dev_err(dev->dev,
1145			"cannot alloc memory for usb buffers\n");
1146		return -ENOMEM;
1147	}
1148
1149	dev->video_mode.bulk_ctl.transfer_buffer =
1150	    kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1151	if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1152		dev_err(dev->dev,
1153			"cannot allocate memory for usbtransfer\n");
1154		kfree(dev->video_mode.bulk_ctl.urb);
1155		return -ENOMEM;
1156	}
1157
1158	dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1159	dev->video_mode.bulk_ctl.buf = NULL;
1160
1161	sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1162
1163	if (dev->mode_tv == 1)
1164		dev->video_mode.end_point_addr = 0x81;
1165	else
1166		dev->video_mode.end_point_addr = 0x84;
1167
1168
1169	/* allocate urbs and transfer buffers */
1170	for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1171		urb = usb_alloc_urb(0, GFP_KERNEL);
1172		if (!urb) {
1173			dev_err(dev->dev,
1174				"cannot alloc bulk_ctl.urb %i\n", i);
1175			cx231xx_uninit_bulk(dev);
1176			return -ENOMEM;
1177		}
1178		dev->video_mode.bulk_ctl.urb[i] = urb;
1179		urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1180
1181		dev->video_mode.bulk_ctl.transfer_buffer[i] =
1182		    usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1183				     &urb->transfer_dma);
1184		if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1185			dev_err(dev->dev,
1186				"unable to allocate %i bytes for transfer buffer %i%s\n",
1187				sb_size, i,
1188				in_interrupt() ? " while in int" : "");
1189			cx231xx_uninit_bulk(dev);
1190			return -ENOMEM;
1191		}
1192		memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1193
1194		pipe = usb_rcvbulkpipe(dev->udev,
1195				 dev->video_mode.end_point_addr);
1196		usb_fill_bulk_urb(urb, dev->udev, pipe,
1197				  dev->video_mode.bulk_ctl.transfer_buffer[i],
1198				  sb_size, cx231xx_bulk_irq_callback, dma_q);
1199	}
1200
1201	init_waitqueue_head(&dma_q->wq);
1202
1203	/* submit urbs and enables IRQ */
1204	for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1205		rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1206				    GFP_ATOMIC);
1207		if (rc) {
1208			dev_err(dev->dev,
1209				"submit of urb %i failed (error=%i)\n", i, rc);
1210			cx231xx_uninit_bulk(dev);
1211			return rc;
1212		}
1213	}
1214
1215	if (dev->mode_tv == 0)
1216		cx231xx_capture_start(dev, 1, Raw_Video);
1217	else
1218		cx231xx_capture_start(dev, 1, TS1_serial_mode);
1219
1220	return 0;
1221}
1222EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1223void cx231xx_stop_TS1(struct cx231xx *dev)
1224{
1225	u8 val[4] = { 0, 0, 0, 0 };
1226
1227	val[0] = 0x00;
1228	val[1] = 0x03;
1229	val[2] = 0x00;
1230	val[3] = 0x00;
1231	cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1232			TS_MODE_REG, val, 4);
1233
1234	val[0] = 0x00;
1235	val[1] = 0x70;
1236	val[2] = 0x04;
1237	val[3] = 0x00;
1238	cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1239			TS1_CFG_REG, val, 4);
1240}
1241/* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1242void cx231xx_start_TS1(struct cx231xx *dev)
1243{
1244	u8 val[4] = { 0, 0, 0, 0 };
1245
1246	val[0] = 0x03;
1247	val[1] = 0x03;
1248	val[2] = 0x00;
1249	val[3] = 0x00;
1250	cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1251			TS_MODE_REG, val, 4);
1252
1253	val[0] = 0x04;
1254	val[1] = 0xA3;
1255	val[2] = 0x3B;
1256	val[3] = 0x00;
1257	cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1258			TS1_CFG_REG, val, 4);
1259}
1260/* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1261/*****************************************************************
1262*             Device Init/UnInit functions                       *
1263******************************************************************/
1264int cx231xx_dev_init(struct cx231xx *dev)
1265{
1266	int errCode = 0;
1267
1268	/* Initialize I2C bus */
1269
1270	/* External Master 1 Bus */
1271	dev->i2c_bus[0].nr = 0;
1272	dev->i2c_bus[0].dev = dev;
1273	dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;	/* 100 KHz */
1274	dev->i2c_bus[0].i2c_nostop = 0;
1275	dev->i2c_bus[0].i2c_reserve = 0;
1276
1277	/* External Master 2 Bus */
1278	dev->i2c_bus[1].nr = 1;
1279	dev->i2c_bus[1].dev = dev;
1280	dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;	/* 100 KHz */
1281	dev->i2c_bus[1].i2c_nostop = 0;
1282	dev->i2c_bus[1].i2c_reserve = 0;
1283
1284	/* Internal Master 3 Bus */
1285	dev->i2c_bus[2].nr = 2;
1286	dev->i2c_bus[2].dev = dev;
1287	dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;	/* 100kHz */
1288	dev->i2c_bus[2].i2c_nostop = 0;
1289	dev->i2c_bus[2].i2c_reserve = 0;
1290
1291	/* register I2C buses */
1292	cx231xx_i2c_register(&dev->i2c_bus[0]);
1293	cx231xx_i2c_register(&dev->i2c_bus[1]);
1294	cx231xx_i2c_register(&dev->i2c_bus[2]);
1295
1296	cx231xx_i2c_mux_register(dev, 0);
1297	cx231xx_i2c_mux_register(dev, 1);
1298
1299	/* scan the real bus segments in the order of physical port numbers */
1300	cx231xx_do_i2c_scan(dev, I2C_0);
1301	cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1302	cx231xx_do_i2c_scan(dev, I2C_2);
1303	cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1304
1305	/* init hardware */
1306	/* Note : with out calling set power mode function,
1307	afe can not be set up correctly */
1308	if (dev->board.external_av) {
1309		errCode = cx231xx_set_power_mode(dev,
1310				 POLARIS_AVMODE_ENXTERNAL_AV);
1311		if (errCode < 0) {
1312			dev_err(dev->dev,
1313				"%s: Failed to set Power - errCode [%d]!\n",
1314				__func__, errCode);
1315			return errCode;
1316		}
1317	} else {
1318		errCode = cx231xx_set_power_mode(dev,
1319				 POLARIS_AVMODE_ANALOGT_TV);
1320		if (errCode < 0) {
1321			dev_err(dev->dev,
1322				"%s: Failed to set Power - errCode [%d]!\n",
1323				__func__, errCode);
1324			return errCode;
1325		}
1326	}
1327
1328	/* reset the Tuner, if it is a Xceive tuner */
1329	if ((dev->board.tuner_type == TUNER_XC5000) ||
1330	    (dev->board.tuner_type == TUNER_XC2028))
1331			cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1332
1333	/* initialize Colibri block */
1334	errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1335	if (errCode < 0) {
1336		dev_err(dev->dev,
1337			"%s: cx231xx_afe init super block - errCode [%d]!\n",
1338			__func__, errCode);
1339		return errCode;
1340	}
1341	errCode = cx231xx_afe_init_channels(dev);
1342	if (errCode < 0) {
1343		dev_err(dev->dev,
1344			"%s: cx231xx_afe init channels - errCode [%d]!\n",
1345			__func__, errCode);
1346		return errCode;
1347	}
1348
1349	/* Set DIF in By pass mode */
1350	errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1351	if (errCode < 0) {
1352		dev_err(dev->dev,
1353			"%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1354			__func__, errCode);
1355		return errCode;
1356	}
1357
1358	/* I2S block related functions */
1359	errCode = cx231xx_i2s_blk_initialize(dev);
1360	if (errCode < 0) {
1361		dev_err(dev->dev,
1362			"%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1363			__func__, errCode);
1364		return errCode;
1365	}
1366
1367	/* init control pins */
1368	errCode = cx231xx_init_ctrl_pin_status(dev);
1369	if (errCode < 0) {
1370		dev_err(dev->dev,
1371			"%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1372			__func__, errCode);
1373		return errCode;
1374	}
1375
1376	/* set AGC mode to Analog */
1377	switch (dev->model) {
1378	case CX231XX_BOARD_CNXT_CARRAERA:
1379	case CX231XX_BOARD_CNXT_RDE_250:
1380	case CX231XX_BOARD_CNXT_SHELBY:
1381	case CX231XX_BOARD_CNXT_RDU_250:
1382	errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1383		break;
1384	case CX231XX_BOARD_CNXT_RDE_253S:
1385	case CX231XX_BOARD_CNXT_RDU_253S:
1386	case CX231XX_BOARD_HAUPPAUGE_EXETER:
1387	case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1388	case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1389	case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1390	case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1391	errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1392		break;
1393	default:
1394		break;
1395	}
1396	if (errCode < 0) {
1397		dev_err(dev->dev,
1398			"%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1399			__func__, errCode);
1400		return errCode;
1401	}
1402
1403	/* set all alternate settings to zero initially */
1404	cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1405	cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1406	cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1407	if (dev->board.has_dvb)
1408		cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1409
1410	errCode = 0;
1411	return errCode;
1412}
1413EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1414
1415void cx231xx_dev_uninit(struct cx231xx *dev)
1416{
1417	/* Un Initialize I2C bus */
1418	cx231xx_i2c_mux_unregister(dev, 1);
1419	cx231xx_i2c_mux_unregister(dev, 0);
1420	cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1421	cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1422	cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1423}
1424EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1425
1426/*****************************************************************
1427*              G P I O related functions                         *
1428******************************************************************/
1429int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1430			  u8 len, u8 request, u8 direction)
1431{
1432	int status = 0;
1433	struct VENDOR_REQUEST_IN ven_req;
1434
1435	/* Set wValue */
1436	ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1437
1438	/* set request */
1439	if (!request) {
1440		if (direction)
1441			ven_req.bRequest = VRT_GET_GPIO;	/* 0x8 gpio */
1442		else
1443			ven_req.bRequest = VRT_SET_GPIO;	/* 0x9 gpio */
1444	} else {
1445		if (direction)
1446			ven_req.bRequest = VRT_GET_GPIE;	/* 0xa gpie */
1447		else
1448			ven_req.bRequest = VRT_SET_GPIE;	/* 0xb gpie */
1449	}
1450
1451	/* set index value */
1452	ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1453
1454	/* set wLength value */
1455	ven_req.wLength = len;
1456
1457	/* set bData value */
1458	ven_req.bData = 0;
1459
1460	/* set the buffer for read / write */
1461	ven_req.pBuff = gpio_val;
1462
1463	/* set the direction */
1464	if (direction) {
1465		ven_req.direction = USB_DIR_IN;
1466		memset(ven_req.pBuff, 0x00, ven_req.wLength);
1467	} else
1468		ven_req.direction = USB_DIR_OUT;
1469
1470
1471	/* call common vendor command request */
1472	status = cx231xx_send_vendor_cmd(dev, &ven_req);
1473	if (status < 0) {
1474		dev_err(dev->dev, "%s: failed with status -%d\n",
1475			__func__, status);
1476	}
1477
1478	return status;
1479}
1480EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1481
1482/*****************************************************************
1483 *    C O N T R O L - Register R E A D / W R I T E functions     *
1484 *****************************************************************/
1485int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1486{
1487	u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1488	u32 tmp = 0;
1489	int status = 0;
1490
1491	status =
1492	    cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1493	if (status < 0)
1494		return status;
1495
1496	tmp = le32_to_cpu(*((__le32 *) value));
1497	tmp |= mode;
1498
1499	value[0] = (u8) tmp;
1500	value[1] = (u8) (tmp >> 8);
1501	value[2] = (u8) (tmp >> 16);
1502	value[3] = (u8) (tmp >> 24);
1503
1504	status =
1505	    cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1506
1507	return status;
1508}
1509
1510/*****************************************************************
1511 *            I 2 C Internal C O N T R O L   functions           *
1512 *****************************************************************/
1513int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1514			  u8 saddr_len, u32 *data, u8 data_len, int master)
1515{
1516	int status = 0;
1517	struct cx231xx_i2c_xfer_data req_data;
1518	u8 value[64] = "0";
1519
1520	if (saddr_len == 0)
1521		saddr = 0;
1522	else if (saddr_len == 1)
1523		saddr &= 0xff;
1524
1525	/* prepare xfer_data struct */
1526	req_data.dev_addr = dev_addr >> 1;
1527	req_data.direction = I2C_M_RD;
1528	req_data.saddr_len = saddr_len;
1529	req_data.saddr_dat = saddr;
1530	req_data.buf_size = data_len;
1531	req_data.p_buffer = (u8 *) value;
1532
1533	/* usb send command */
1534	if (master == 0)
1535		status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1536					 &req_data);
1537	else if (master == 1)
1538		status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1539					 &req_data);
1540	else if (master == 2)
1541		status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1542					 &req_data);
1543
1544	if (status >= 0) {
1545		/* Copy the data read back to main buffer */
1546		if (data_len == 1)
1547			*data = value[0];
1548		else if (data_len == 4)
1549			*data =
1550			    value[0] | value[1] << 8 | value[2] << 16 | value[3]
1551			    << 24;
1552		else if (data_len > 4)
1553			*data = value[saddr];
1554	}
1555
1556	return status;
1557}
1558
1559int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1560			   u8 saddr_len, u32 data, u8 data_len, int master)
1561{
1562	int status = 0;
1563	u8 value[4] = { 0, 0, 0, 0 };
1564	struct cx231xx_i2c_xfer_data req_data;
1565
1566	value[0] = (u8) data;
1567	value[1] = (u8) (data >> 8);
1568	value[2] = (u8) (data >> 16);
1569	value[3] = (u8) (data >> 24);
1570
1571	if (saddr_len == 0)
1572		saddr = 0;
1573	else if (saddr_len == 1)
1574		saddr &= 0xff;
1575
1576	/* prepare xfer_data struct */
1577	req_data.dev_addr = dev_addr >> 1;
1578	req_data.direction = 0;
1579	req_data.saddr_len = saddr_len;
1580	req_data.saddr_dat = saddr;
1581	req_data.buf_size = data_len;
1582	req_data.p_buffer = value;
1583
1584	/* usb send command */
1585	if (master == 0)
1586		status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1587				 &req_data);
1588	else if (master == 1)
1589		status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1590				 &req_data);
1591	else if (master == 2)
1592		status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1593				 &req_data);
1594
1595	return status;
1596}
1597
1598int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1599			  u8 saddr_len, u32 *data, u8 data_len)
1600{
1601	int status = 0;
1602	struct cx231xx_i2c_xfer_data req_data;
1603	u8 value[4] = { 0, 0, 0, 0 };
1604
1605	if (saddr_len == 0)
1606		saddr = 0;
1607	else if (saddr_len == 1)
1608		saddr &= 0xff;
1609
1610	/* prepare xfer_data struct */
1611	req_data.dev_addr = dev_addr >> 1;
1612	req_data.direction = I2C_M_RD;
1613	req_data.saddr_len = saddr_len;
1614	req_data.saddr_dat = saddr;
1615	req_data.buf_size = data_len;
1616	req_data.p_buffer = (u8 *) value;
1617
1618	/* usb send command */
1619	status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1620
1621	if (status >= 0) {
1622		/* Copy the data read back to main buffer */
1623		if (data_len == 1)
1624			*data = value[0];
1625		else
1626			*data =
1627			    value[0] | value[1] << 8 | value[2] << 16 | value[3]
1628			    << 24;
1629	}
1630
1631	return status;
1632}
1633
1634int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1635			   u8 saddr_len, u32 data, u8 data_len)
1636{
1637	int status = 0;
1638	u8 value[4] = { 0, 0, 0, 0 };
1639	struct cx231xx_i2c_xfer_data req_data;
1640
1641	value[0] = (u8) data;
1642	value[1] = (u8) (data >> 8);
1643	value[2] = (u8) (data >> 16);
1644	value[3] = (u8) (data >> 24);
1645
1646	if (saddr_len == 0)
1647		saddr = 0;
1648	else if (saddr_len == 1)
1649		saddr &= 0xff;
1650
1651	/* prepare xfer_data struct */
1652	req_data.dev_addr = dev_addr >> 1;
1653	req_data.direction = 0;
1654	req_data.saddr_len = saddr_len;
1655	req_data.saddr_dat = saddr;
1656	req_data.buf_size = data_len;
1657	req_data.p_buffer = value;
1658
1659	/* usb send command */
1660	status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1661
1662	return status;
1663}
1664
1665int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1666			   u16 register_address, u8 bit_start, u8 bit_end,
1667			   u32 value)
1668{
1669	int status = 0;
1670	u32 tmp;
1671	u32 mask = 0;
1672	int i;
1673
1674	if (bit_start > (size - 1) || bit_end > (size - 1))
1675		return -1;
1676
1677	if (size == 8) {
1678		status =
1679		    cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1680					  &tmp, 1);
1681	} else {
1682		status =
1683		    cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1684					  &tmp, 4);
1685	}
1686
1687	if (status < 0)
1688		return status;
1689
1690	mask = 1 << bit_end;
1691	for (i = bit_end; i > bit_start && i > 0; i--)
1692		mask = mask + (1 << (i - 1));
1693
1694	value <<= bit_start;
1695
1696	if (size == 8) {
1697		tmp &= ~mask;
1698		tmp |= value;
1699		tmp &= 0xff;
1700		status =
1701		    cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1702					   tmp, 1);
1703	} else {
1704		tmp &= ~mask;
1705		tmp |= value;
1706		status =
1707		    cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1708					   tmp, 4);
1709	}
1710
1711	return status;
1712}
1713
1714int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1715					u16 saddr, u32 mask, u32 value)
1716{
1717	u32 temp;
1718	int status = 0;
1719
1720	status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1721
1722	if (status < 0)
1723		return status;
1724
1725	temp &= ~mask;
1726	temp |= value;
1727
1728	status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1729
1730	return status;
1731}
1732
1733u32 cx231xx_set_field(u32 field_mask, u32 data)
1734{
1735	u32 temp;
1736
1737	for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1738		data <<= 1;
1739
1740	return data;
1741}
1742