[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / au0828 / au0828-dvb.c

/*
 *  Driver for the Auvitek USB bridge
 *
 *  Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/suspend.h>
#include <media/v4l2-common.h>

#include "au0828.h"
#include "au8522.h"
#include "xc5000.h"

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#define _AU0828_BULKPIPE 0x83
#define _BULKPIPESIZE 0xe522

static struct au8522_config hauppauge_hvr950q_config = {
	.demod_address = 0x8e >> 1,
	.status_mode   = AU8522_DEMODLOCKING,
};

static struct xc5000_config hauppauge_hvr950q_tunerconfig = {
	.i2c_address      = 0x61,
	.if_khz           = 6000,
	.tuner_callback   = au0828_tuner_callback
};

/*-------------------------------------------------------------------*/
static void urb_completion(struct urb *purb)
{
	u8 *ptr;
	struct au0828_dev *dev = purb->context;
	int ptype = usb_pipetype(purb->pipe);

	dprintk(2, "%s()\n", __func__);

	if (!dev)
		return;

	if (dev->urb_streaming == 0)
		return;

	if (ptype != PIPE_BULK) {
		printk(KERN_ERR "%s() Unsupported URB type %d\n",
		       __func__, ptype);
		return;
	}

	ptr = (u8 *)purb->transfer_buffer;

	/* Feed the transport payload into the kernel demux */
	dvb_dmx_swfilter_packets(&dev->dvb.demux,
		purb->transfer_buffer, purb->actual_length / 188);

	/* Clean the buffer before we requeue */
	memset(purb->transfer_buffer, 0, URB_BUFSIZE);

	/* Requeue URB */
	usb_submit_urb(purb, GFP_ATOMIC);
}

static int stop_urb_transfer(struct au0828_dev *dev)
{
	int i;

	dprintk(2, "%s()\n", __func__);

	for (i = 0; i < URB_COUNT; i++) {
		usb_kill_urb(dev->urbs[i]);
		kfree(dev->urbs[i]->transfer_buffer);
		usb_free_urb(dev->urbs[i]);
	}

	dev->urb_streaming = 0;

	return 0;
}

static int start_urb_transfer(struct au0828_dev *dev)
{
	struct urb *purb;
	int i, ret = -ENOMEM;

	dprintk(2, "%s()\n", __func__);

	if (dev->urb_streaming) {
		dprintk(2, "%s: iso xfer already running!\n", __func__);
		return 0;
	}

	for (i = 0; i < URB_COUNT; i++) {

		dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
		if (!dev->urbs[i])
			goto err;

		purb = dev->urbs[i];

		purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL);
		if (!purb->transfer_buffer) {
			usb_free_urb(purb);
			dev->urbs[i] = NULL;
			goto err;
		}

		purb->status = -EINPROGRESS;
		usb_fill_bulk_urb(purb,
				  dev->usbdev,
				  usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE),
				  purb->transfer_buffer,
				  URB_BUFSIZE,
				  urb_completion,
				  dev);

	}

	for (i = 0; i < URB_COUNT; i++) {
		ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
		if (ret != 0) {
			stop_urb_transfer(dev);
			printk(KERN_ERR "%s: failed urb submission, "
			       "err = %d\n", __func__, ret);
			return ret;
		}
	}

	dev->urb_streaming = 1;
	ret = 0;

err:
	return ret;
}

static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
	struct au0828_dvb *dvb = &dev->dvb;
	int ret = 0;

	dprintk(1, "%s()\n", __func__);

	if (!demux->dmx.frontend)
		return -EINVAL;

	if (dvb) {
		mutex_lock(&dvb->lock);
		if (dvb->feeding++ == 0) {
			/* Start transport */
			au0828_write(dev, 0x608, 0x90);
			au0828_write(dev, 0x609, 0x72);
			au0828_write(dev, 0x60a, 0x71);
			au0828_write(dev, 0x60b, 0x01);
			ret = start_urb_transfer(dev);
		}
		mutex_unlock(&dvb->lock);
	}

	return ret;
}

static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
	struct au0828_dvb *dvb = &dev->dvb;
	int ret = 0;

	dprintk(1, "%s()\n", __func__);

	if (dvb) {
		mutex_lock(&dvb->lock);
		if (--dvb->feeding == 0) {
			/* Stop transport */
			au0828_write(dev, 0x608, 0x00);
			au0828_write(dev, 0x609, 0x00);
			au0828_write(dev, 0x60a, 0x00);
			au0828_write(dev, 0x60b, 0x00);
			ret = stop_urb_transfer(dev);
		}
		mutex_unlock(&dvb->lock);
	}

	return ret;
}

static int dvb_register(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;
	int result;

	dprintk(1, "%s()\n", __func__);

	/* register adapter */
	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
				      &dev->usbdev->dev, adapter_nr);
	if (result < 0) {
		printk(KERN_ERR "%s: dvb_register_adapter failed "
		       "(errno = %d)\n", DRIVER_NAME, result);
		goto fail_adapter;
	}
	dvb->adapter.priv = dev;

	/* register frontend */
	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	if (result < 0) {
		printk(KERN_ERR "%s: dvb_register_frontend failed "
		       "(errno = %d)\n", DRIVER_NAME, result);
		goto fail_frontend;
	}

	/* register demux stuff */
	dvb->demux.dmx.capabilities =
		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
		DMX_MEMORY_BASED_FILTERING;
	dvb->demux.priv       = dev;
	dvb->demux.filternum  = 256;
	dvb->demux.feednum    = 256;
	dvb->demux.start_feed = au0828_dvb_start_feed;
	dvb->demux.stop_feed  = au0828_dvb_stop_feed;
	result = dvb_dmx_init(&dvb->demux);
	if (result < 0) {
		printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
		       DRIVER_NAME, result);
		goto fail_dmx;
	}

	dvb->dmxdev.filternum    = 256;
	dvb->dmxdev.demux        = &dvb->demux.dmx;
	dvb->dmxdev.capabilities = 0;
	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	if (result < 0) {
		printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
		       DRIVER_NAME, result);
		goto fail_dmxdev;
	}

	dvb->fe_hw.source = DMX_FRONTEND_0;
	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	if (result < 0) {
		printk(KERN_ERR "%s: add_frontend failed "
		       "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
		goto fail_fe_hw;
	}

	dvb->fe_mem.source = DMX_MEMORY_FE;
	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	if (result < 0) {
		printk(KERN_ERR "%s: add_frontend failed "
		       "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
		goto fail_fe_mem;
	}

	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	if (result < 0) {
		printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
		       DRIVER_NAME, result);
		goto fail_fe_conn;
	}

	/* register network adapter */
	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
	return 0;

fail_fe_conn:
	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
fail_fe_mem:
	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
fail_fe_hw:
	dvb_dmxdev_release(&dvb->dmxdev);
fail_dmxdev:
	dvb_dmx_release(&dvb->demux);
fail_dmx:
	dvb_unregister_frontend(dvb->frontend);
fail_frontend:
	dvb_frontend_detach(dvb->frontend);
	dvb_unregister_adapter(&dvb->adapter);
fail_adapter:
	return result;
}

void au0828_dvb_unregister(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;

	dprintk(1, "%s()\n", __func__);

	if (dvb->frontend == NULL)
		return;

	dvb_net_release(&dvb->net);
	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	dvb_dmxdev_release(&dvb->dmxdev);
	dvb_dmx_release(&dvb->demux);
	dvb_unregister_frontend(dvb->frontend);
	dvb_frontend_detach(dvb->frontend);
	dvb_unregister_adapter(&dvb->adapter);
}

/* All the DVB attach calls go here, this function get's modified
 * for each new card. No other function in this file needs
 * to change.
 */
int au0828_dvb_register(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;
	int ret;

	dprintk(1, "%s()\n", __func__);

	/* init frontend */
	switch (dev->board) {
	case AU0828_BOARD_HAUPPAUGE_HVR850:
	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
	case AU0828_BOARD_DVICO_FUSIONHDTV7:
		dvb->frontend = dvb_attach(au8522_attach,
				&hauppauge_hvr950q_config,
				&dev->i2c_adap);
		if (dvb->frontend != NULL)
			dvb_attach(xc5000_attach, dvb->frontend,
				&dev->i2c_adap,
				&hauppauge_hvr950q_tunerconfig, dev);
		break;
	default:
		printk(KERN_WARNING "The frontend of your DVB/ATSC card "
		       "isn't supported yet\n");
		break;
	}
	if (NULL == dvb->frontend) {
		printk(KERN_ERR "%s() Frontend initialization failed\n",
		       __func__);
		return -1;
	}

	/* Put the analog decoder in standby to keep it quiet */
	au0828_call_i2c_clients(dev, TUNER_SET_STANDBY, NULL);

	if (dvb->frontend->ops.analog_ops.standby)
		dvb->frontend->ops.analog_ops.standby(dvb->frontend);

	/* register everything */
	ret = dvb_register(dev);
	if (ret < 0) {
		if (dvb->frontend->ops.release)
			dvb->frontend->ops.release(dvb->frontend);
		return ret;
	}

	return 0;
}
Commit	Line	Data
265a6510 ST	1	/*
	2	* Driver for the Auvitek USB bridge
	3	*
	4	* Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	*
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	20	*/
	21
	22	#include <linux/module.h>
	23	#include <linux/init.h>
	24	#include <linux/device.h>
	25	#include <linux/suspend.h>
	26	#include <media/v4l2-common.h>
	27
	28	#include "au0828.h"
265a6510 ST	29	#include "au8522.h"
	30	#include "xc5000.h"
	31
	32	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
	33
a9c36aad ST	34	#define _AU0828_BULKPIPE 0x83
	35	#define _BULKPIPESIZE 0xe522
	36
265a6510 ST	37	static struct au8522_config hauppauge_hvr950q_config = {
	38	.demod_address = 0x8e >> 1,
	39	.status_mode = AU8522_DEMODLOCKING,
	40	};
	41
	42	static struct xc5000_config hauppauge_hvr950q_tunerconfig = {
	43	.i2c_address = 0x61,
	44	.if_khz = 6000,
	45	.tuner_callback = au0828_tuner_callback
	46	};
	47
	48	/-------------------------------------------------------------------/
	49	static void urb_completion(struct urb *purb)
	50	{
	51	u8 *ptr;
	52	struct au0828_dev *dev = purb->context;
	53	int ptype = usb_pipetype(purb->pipe);
	54
f07e8e4b	55	dprintk(2, "%s()\n", __func__);
bc3c613c	56
9c26de55 ST	57	if (!dev)
	58	return;
	59
265a6510 ST	60	if (dev->urb_streaming == 0)
	61	return;
	62
	63	if (ptype != PIPE_BULK) {
f07e8e4b MK	64	printk(KERN_ERR "%s() Unsupported URB type %d\n",
f07e8e4b MK	65	__func__, ptype);
265a6510 ST	66	return;
	67	}
	68
	69	ptr = (u8 *)purb->transfer_buffer;
	70
	71	/* Feed the transport payload into the kernel demux */
a9c36aad ST	72	dvb_dmx_swfilter_packets(&dev->dvb.demux,
a9c36aad ST	73	purb->transfer_buffer, purb->actual_length / 188);
265a6510 ST	74
	75	/* Clean the buffer before we requeue */
	76	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
	77
	78	/* Requeue URB */
	79	usb_submit_urb(purb, GFP_ATOMIC);
	80	}
	81
	82	static int stop_urb_transfer(struct au0828_dev *dev)
	83	{
	84	int i;
	85
f07e8e4b	86	dprintk(2, "%s()\n", __func__);
265a6510	87
265a6510 ST	88	for (i = 0; i < URB_COUNT; i++) {
	89	usb_kill_urb(dev->urbs[i]);
	90	kfree(dev->urbs[i]->transfer_buffer);
	91	usb_free_urb(dev->urbs[i]);
	92	}
	93
	94	dev->urb_streaming = 0;
	95
	96	return 0;
	97	}
	98
265a6510 ST	99	static int start_urb_transfer(struct au0828_dev *dev)
	100	{
	101	struct urb *purb;
	102	int i, ret = -ENOMEM;
265a6510	103
f07e8e4b	104	dprintk(2, "%s()\n", __func__);
265a6510 ST	105
265a6510 ST	106	if (dev->urb_streaming) {
f07e8e4b	107	dprintk(2, "%s: iso xfer already running!\n", __func__);
265a6510 ST	108	return 0;
	109	}
	110
	111	for (i = 0; i < URB_COUNT; i++) {
	112
	113	dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
18d73c58	114	if (!dev->urbs[i])
265a6510	115	goto err;
265a6510 ST	116
	117	purb = dev->urbs[i];
	118
	119	purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL);
	120	if (!purb->transfer_buffer) {
	121	usb_free_urb(purb);
a6a3a17b	122	dev->urbs[i] = NULL;
265a6510 ST	123	goto err;
	124	}
	125
	126	purb->status = -EINPROGRESS;
	127	usb_fill_bulk_urb(purb,
	128	dev->usbdev,
	129	usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE),
	130	purb->transfer_buffer,
	131	URB_BUFSIZE,
	132	urb_completion,
	133	dev);
	134
	135	}
	136
	137	for (i = 0; i < URB_COUNT; i++) {
	138	ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
	139	if (ret != 0) {
	140	stop_urb_transfer(dev);
f07e8e4b MK	141	printk(KERN_ERR "%s: failed urb submission, "
f07e8e4b MK	142	"err = %d\n", __func__, ret);
265a6510 ST	143	return ret;
	144	}
	145	}
	146
	147	dev->urb_streaming = 1;
	148	ret = 0;
	149
	150	err:
	151	return ret;
	152	}
	153
	154	static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
	155	{
	156	struct dvb_demux *demux = feed->demux;
	157	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	158	struct au0828_dvb *dvb = &dev->dvb;
	159	int ret = 0;
	160
f07e8e4b	161	dprintk(1, "%s()\n", __func__);
265a6510 ST	162
	163	if (!demux->dmx.frontend)
	164	return -EINVAL;
	165
265a6510 ST	166	if (dvb) {
	167	mutex_lock(&dvb->lock);
	168	if (dvb->feeding++ == 0) {
bc3c613c	169	/* Start transport */
265a6510 ST	170	au0828_write(dev, 0x608, 0x90);
	171	au0828_write(dev, 0x609, 0x72);
	172	au0828_write(dev, 0x60a, 0x71);
	173	au0828_write(dev, 0x60b, 0x01);
	174	ret = start_urb_transfer(dev);
	175	}
	176	mutex_unlock(&dvb->lock);
	177	}
	178
	179	return ret;
	180	}
	181
	182	static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
	183	{
	184	struct dvb_demux *demux = feed->demux;
	185	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	186	struct au0828_dvb *dvb = &dev->dvb;
	187	int ret = 0;
	188
f07e8e4b	189	dprintk(1, "%s()\n", __func__);
265a6510 ST	190
	191	if (dvb) {
	192	mutex_lock(&dvb->lock);
	193	if (--dvb->feeding == 0) {
bc3c613c	194	/* Stop transport */
265a6510 ST	195	au0828_write(dev, 0x608, 0x00);
	196	au0828_write(dev, 0x609, 0x00);
	197	au0828_write(dev, 0x60a, 0x00);
	198	au0828_write(dev, 0x60b, 0x00);
	199	ret = stop_urb_transfer(dev);
	200	}
	201	mutex_unlock(&dvb->lock);
	202	}
	203
	204	return ret;
	205	}
	206
b33d24c4	207	static int dvb_register(struct au0828_dev *dev)
265a6510 ST	208	{
	209	struct au0828_dvb *dvb = &dev->dvb;
	210	int result;
	211
f07e8e4b	212	dprintk(1, "%s()\n", __func__);
bc3c613c	213
265a6510 ST	214	/* register adapter */
	215	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
	216	&dev->usbdev->dev, adapter_nr);
	217	if (result < 0) {
f07e8e4b MK	218	printk(KERN_ERR "%s: dvb_register_adapter failed "
f07e8e4b MK	219	"(errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	220	goto fail_adapter;
	221	}
	222	dvb->adapter.priv = dev;
	223
	224	/* register frontend */
	225	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	226	if (result < 0) {
f07e8e4b MK	227	printk(KERN_ERR "%s: dvb_register_frontend failed "
f07e8e4b MK	228	"(errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	229	goto fail_frontend;
	230	}
	231
	232	/* register demux stuff */
	233	dvb->demux.dmx.capabilities =
	234	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	235	DMX_MEMORY_BASED_FILTERING;
	236	dvb->demux.priv = dev;
	237	dvb->demux.filternum = 256;
	238	dvb->demux.feednum = 256;
	239	dvb->demux.start_feed = au0828_dvb_start_feed;
	240	dvb->demux.stop_feed = au0828_dvb_stop_feed;
	241	result = dvb_dmx_init(&dvb->demux);
	242	if (result < 0) {
bc3c613c	243	printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
265a6510 ST	244	DRIVER_NAME, result);
	245	goto fail_dmx;
	246	}
	247
	248	dvb->dmxdev.filternum = 256;
	249	dvb->dmxdev.demux = &dvb->demux.dmx;
	250	dvb->dmxdev.capabilities = 0;
	251	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	252	if (result < 0) {
bc3c613c	253	printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
265a6510 ST	254	DRIVER_NAME, result);
	255	goto fail_dmxdev;
	256	}
	257
	258	dvb->fe_hw.source = DMX_FRONTEND_0;
	259	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	260	if (result < 0) {
f07e8e4b MK	261	printk(KERN_ERR "%s: add_frontend failed "
f07e8e4b MK	262	"(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	263	goto fail_fe_hw;
	264	}
	265
	266	dvb->fe_mem.source = DMX_MEMORY_FE;
	267	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	268	if (result < 0) {
f07e8e4b MK	269	printk(KERN_ERR "%s: add_frontend failed "
f07e8e4b MK	270	"(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	271	goto fail_fe_mem;
	272	}
	273
	274	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	275	if (result < 0) {
bc3c613c	276	printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
265a6510 ST	277	DRIVER_NAME, result);
	278	goto fail_fe_conn;
	279	}
	280
	281	/* register network adapter */
	282	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
	283	return 0;
	284
	285	fail_fe_conn:
	286	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	287	fail_fe_mem:
	288	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	289	fail_fe_hw:
	290	dvb_dmxdev_release(&dvb->dmxdev);
	291	fail_dmxdev:
	292	dvb_dmx_release(&dvb->demux);
	293	fail_dmx:
	294	dvb_unregister_frontend(dvb->frontend);
	295	fail_frontend:
	296	dvb_frontend_detach(dvb->frontend);
	297	dvb_unregister_adapter(&dvb->adapter);
	298	fail_adapter:
	299	return result;
	300	}
	301
	302	void au0828_dvb_unregister(struct au0828_dev *dev)
	303	{
	304	struct au0828_dvb *dvb = &dev->dvb;
	305
f07e8e4b	306	dprintk(1, "%s()\n", __func__);
bc3c613c	307
a9c36aad	308	if (dvb->frontend == NULL)
9c26de55 ST	309	return;
9c26de55 ST	310
265a6510 ST	311	dvb_net_release(&dvb->net);
	312	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	313	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	314	dvb_dmxdev_release(&dvb->dmxdev);
	315	dvb_dmx_release(&dvb->demux);
	316	dvb_unregister_frontend(dvb->frontend);
	317	dvb_frontend_detach(dvb->frontend);
	318	dvb_unregister_adapter(&dvb->adapter);
	319	}
	320
	321	/* All the DVB attach calls go here, this function get's modified
	322	* for each new card. No other function in this file needs
	323	* to change.
	324	*/
	325	int au0828_dvb_register(struct au0828_dev *dev)
	326	{
	327	struct au0828_dvb *dvb = &dev->dvb;
	328	int ret;
	329
f07e8e4b	330	dprintk(1, "%s()\n", __func__);
bc3c613c	331
265a6510 ST	332	/* init frontend */
	333	switch (dev->board) {
	334	case AU0828_BOARD_HAUPPAUGE_HVR850:
	335	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
	336	case AU0828_BOARD_DVICO_FUSIONHDTV7:
	337	dvb->frontend = dvb_attach(au8522_attach,
	338	&hauppauge_hvr950q_config,
	339	&dev->i2c_adap);
48723543	340	if (dvb->frontend != NULL)
265a6510 ST	341	dvb_attach(xc5000_attach, dvb->frontend,
265a6510 ST	342	&dev->i2c_adap,
48723543	343	&hauppauge_hvr950q_tunerconfig, dev);
265a6510 ST	344	break;
265a6510 ST	345	default:
f07e8e4b MK	346	printk(KERN_WARNING "The frontend of your DVB/ATSC card "
f07e8e4b MK	347	"isn't supported yet\n");
265a6510 ST	348	break;
	349	}
	350	if (NULL == dvb->frontend) {
f07e8e4b MK	351	printk(KERN_ERR "%s() Frontend initialization failed\n",
f07e8e4b MK	352	__func__);
265a6510 ST	353	return -1;
	354	}
	355
	356	/* Put the analog decoder in standby to keep it quiet */
	357	au0828_call_i2c_clients(dev, TUNER_SET_STANDBY, NULL);
	358
	359	if (dvb->frontend->ops.analog_ops.standby)
	360	dvb->frontend->ops.analog_ops.standby(dvb->frontend);
	361
	362	/* register everything */
	363	ret = dvb_register(dev);
	364	if (ret < 0) {
	365	if (dvb->frontend->ops.release)
	366	dvb->frontend->ops.release(dvb->frontend);
	367	return ret;
	368	}
	369
	370	return 0;
	371	}