[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / tm6000 / tm6000-dvb.c

/*
   tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices

   Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.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 version 2

   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/kernel.h>
#include <linux/slab.h>
#include <linux/usb.h>

#include "tm6000.h"
#include "tm6000-regs.h"

#include "zl10353.h"

#include <media/tuner.h>

#include "tuner-xc2028.h"
#include "xc5000.h"

MODULE_DESCRIPTION("DVB driver extension module for tm5600/6000/6010 based TV cards");
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
MODULE_LICENSE("GPL");

MODULE_SUPPORTED_DEVICE("{{Trident, tm5600},"
			"{{Trident, tm6000},"
			"{{Trident, tm6010}");

static int debug;

module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug message");

static inline void print_err_status(struct tm6000_core *dev,
				    int packet, int status)
{
	char *errmsg = "Unknown";

	switch (status) {
	case -ENOENT:
		errmsg = "unlinked synchronuously";
		break;
	case -ECONNRESET:
		errmsg = "unlinked asynchronuously";
		break;
	case -ENOSR:
		errmsg = "Buffer error (overrun)";
		break;
	case -EPIPE:
		errmsg = "Stalled (device not responding)";
		break;
	case -EOVERFLOW:
		errmsg = "Babble (bad cable?)";
		break;
	case -EPROTO:
		errmsg = "Bit-stuff error (bad cable?)";
		break;
	case -EILSEQ:
		errmsg = "CRC/Timeout (could be anything)";
		break;
	case -ETIME:
		errmsg = "Device does not respond";
		break;
	}
	if (packet < 0) {
		dprintk(dev, 1, "URB status %d [%s].\n",
			status, errmsg);
	} else {
		dprintk(dev, 1, "URB packet %d, status %d [%s].\n",
			packet, status, errmsg);
	}
}

static void tm6000_urb_received(struct urb *urb)
{
	int ret;
	struct tm6000_core *dev = urb->context;

	if (urb->status != 0)
		print_err_status(dev, 0, urb->status);
	else if (urb->actual_length > 0)
		dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
						   urb->actual_length);

	if (dev->dvb->streams > 0) {
		ret = usb_submit_urb(urb, GFP_ATOMIC);
		if (ret < 0) {
			printk(KERN_ERR "tm6000:  error %s\n", __FUNCTION__);
			kfree(urb->transfer_buffer);
			usb_free_urb(urb);
		}
	}
}

int tm6000_start_stream(struct tm6000_core *dev)
{
	int ret;
	unsigned int pipe, size;
	struct tm6000_dvb *dvb = dev->dvb;

	printk(KERN_INFO "tm6000: got start stream request %s\n", __FUNCTION__);

	if (dev->mode != TM6000_MODE_DIGITAL) {
		tm6000_init_digital_mode(dev);
		dev->mode = TM6000_MODE_DIGITAL;
	}

	dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
	if (dvb->bulk_urb == NULL) {
		printk(KERN_ERR "tm6000: couldn't allocate urb\n");
		return -ENOMEM;
	}

	pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in.endp->desc.bEndpointAddress
							  & USB_ENDPOINT_NUMBER_MASK);

	size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
	size = size * 15; /* 512 x 8 or 12 or 15 */

	dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
	if (dvb->bulk_urb->transfer_buffer == NULL) {
		usb_free_urb(dvb->bulk_urb);
		printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n");
		return -ENOMEM;
	}

	usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe,
						 dvb->bulk_urb->transfer_buffer,
						 size,
						 tm6000_urb_received, dev);

	ret = usb_clear_halt(dev->udev, pipe);
	if (ret < 0) {
		printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",
							ret, __FUNCTION__);
		return ret;
	} else
		printk(KERN_ERR "tm6000: pipe resetted\n");

/*	mutex_lock(&tm6000_driver.open_close_mutex); */
	ret = usb_submit_urb(dvb->bulk_urb, GFP_KERNEL);

/*	mutex_unlock(&tm6000_driver.open_close_mutex); */
	if (ret) {
		printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",
									ret);

		kfree(dvb->bulk_urb->transfer_buffer);
		usb_free_urb(dvb->bulk_urb);
		return ret;
	}

	return 0;
}

void tm6000_stop_stream(struct tm6000_core *dev)
{
	struct tm6000_dvb *dvb = dev->dvb;

	if (dvb->bulk_urb) {
		printk(KERN_INFO "urb killing\n");
		usb_kill_urb(dvb->bulk_urb);
		printk(KERN_INFO "urb buffer free\n");
		kfree(dvb->bulk_urb->transfer_buffer);
		usb_free_urb(dvb->bulk_urb);
		dvb->bulk_urb = NULL;
	}
}

int tm6000_start_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct tm6000_core *dev = demux->priv;
	struct tm6000_dvb *dvb = dev->dvb;
	printk(KERN_INFO "tm6000: got start feed request %s\n", __FUNCTION__);

	mutex_lock(&dvb->mutex);
	if (dvb->streams == 0) {
		dvb->streams = 1;
/*		mutex_init(&tm6000_dev->streming_mutex); */
		tm6000_start_stream(dev);
	} else
		++(dvb->streams);
	mutex_unlock(&dvb->mutex);

	return 0;
}

int tm6000_stop_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct tm6000_core *dev = demux->priv;
	struct tm6000_dvb *dvb = dev->dvb;

	printk(KERN_INFO "tm6000: got stop feed request %s\n", __FUNCTION__);

	mutex_lock(&dvb->mutex);

	printk(KERN_INFO "stream %#x\n", dvb->streams);
	--(dvb->streams);
	if (dvb->streams == 0) {
		printk(KERN_INFO "stop stream\n");
		tm6000_stop_stream(dev);
/*		mutex_destroy(&tm6000_dev->streaming_mutex); */
	}
	mutex_unlock(&dvb->mutex);
/*	mutex_destroy(&tm6000_dev->streaming_mutex); */

	return 0;
}

int tm6000_dvb_attach_frontend(struct tm6000_core *dev)
{
	struct tm6000_dvb *dvb = dev->dvb;

	if (dev->caps.has_zl10353) {
		struct zl10353_config config = {
				     .demod_address = dev->demod_addr,
				     .no_tuner = 1,
				     .parallel_ts = 1,
				     .if2 = 45700,
				     .disable_i2c_gate_ctrl = 1,
				    };

		dvb->frontend = dvb_attach(zl10353_attach, &config,
							   &dev->i2c_adap);
	} else {
		printk(KERN_ERR "tm6000: no frontend defined for the device!\n");
		return -1;
	}

	return (!dvb->frontend) ? -1 : 0;
}

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

int register_dvb(struct tm6000_core *dev)
{
	int ret = -1;
	struct tm6000_dvb *dvb = dev->dvb;

	mutex_init(&dvb->mutex);

	dvb->streams = 0;

	/* attach the frontend */
	ret = tm6000_dvb_attach_frontend(dev);
	if (ret < 0) {
		printk(KERN_ERR "tm6000: couldn't attach the frontend!\n");
		goto err;
	}

	ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
					THIS_MODULE, &dev->udev->dev, adapter_nr);
	dvb->adapter.priv = dev;

	if (dvb->frontend) {
		switch (dev->tuner_type) {
		case TUNER_XC2028: {
			struct xc2028_config cfg = {
				.i2c_adap = &dev->i2c_adap,
				.i2c_addr = dev->tuner_addr,
			};

			dvb->frontend->callback = tm6000_tuner_callback;
			ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
			if (ret < 0) {
				printk(KERN_ERR
					"tm6000: couldn't register frontend\n");
				goto adapter_err;
			}

			if (!dvb_attach(xc2028_attach, dvb->frontend, &cfg)) {
				printk(KERN_ERR "tm6000: couldn't register "
						"frontend (xc3028)\n");
				ret = -EINVAL;
				goto frontend_err;
			}
			printk(KERN_INFO "tm6000: XC2028/3028 asked to be "
					 "attached to frontend!\n");
			break;
			}
		case TUNER_XC5000: {
			struct xc5000_config cfg = {
				.i2c_address = dev->tuner_addr,
			};

			dvb->frontend->callback = tm6000_xc5000_callback;
			ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
			if (ret < 0) {
				printk(KERN_ERR
					"tm6000: couldn't register frontend\n");
				goto adapter_err;
			}

			if (!dvb_attach(xc5000_attach, dvb->frontend, &dev->i2c_adap, &cfg)) {
				printk(KERN_ERR "tm6000: couldn't register "
						"frontend (xc5000)\n");
				ret = -EINVAL;
				goto frontend_err;
			}
			printk(KERN_INFO "tm6000: XC5000 asked to be "
					 "attached to frontend!\n");
			break;
			}
		}
	} else
		printk(KERN_ERR "tm6000: no frontend found\n");

	dvb->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING
							    | DMX_MEMORY_BASED_FILTERING;
	dvb->demux.priv = dev;
	dvb->demux.filternum = 8;
	dvb->demux.feednum = 8;
	dvb->demux.start_feed = tm6000_start_feed;
	dvb->demux.stop_feed = tm6000_stop_feed;
	dvb->demux.write_to_decoder = NULL;
	ret = dvb_dmx_init(&dvb->demux);
	if (ret < 0) {
		printk("tm6000: dvb_dmx_init failed (errno = %d)\n", ret);
		goto frontend_err;
	}

	dvb->dmxdev.filternum = dev->dvb->demux.filternum;
	dvb->dmxdev.demux = &dev->dvb->demux.dmx;
	dvb->dmxdev.capabilities = 0;

	ret =  dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	if (ret < 0) {
		printk("tm6000: dvb_dmxdev_init failed (errno = %d)\n", ret);
		goto dvb_dmx_err;
	}

	return 0;

dvb_dmx_err:
	dvb_dmx_release(&dvb->demux);
frontend_err:
	if (dvb->frontend) {
		dvb_frontend_detach(dvb->frontend);
		dvb_unregister_frontend(dvb->frontend);
	}
adapter_err:
	dvb_unregister_adapter(&dvb->adapter);
err:
	return ret;
}

void unregister_dvb(struct tm6000_core *dev)
{
	struct tm6000_dvb *dvb = dev->dvb;

	if (dvb->bulk_urb != NULL) {
		struct urb *bulk_urb = dvb->bulk_urb;

		kfree(bulk_urb->transfer_buffer);
		bulk_urb->transfer_buffer = NULL;
		usb_unlink_urb(bulk_urb);
		usb_free_urb(bulk_urb);
	}

/*	mutex_lock(&tm6000_driver.open_close_mutex); */
	if (dvb->frontend) {
		dvb_frontend_detach(dvb->frontend);
		dvb_unregister_frontend(dvb->frontend);
	}

	dvb_dmxdev_release(&dvb->dmxdev);
	dvb_dmx_release(&dvb->demux);
	dvb_unregister_adapter(&dvb->adapter);
	mutex_destroy(&dvb->mutex);
/*	mutex_unlock(&tm6000_driver.open_close_mutex); */
}

static int dvb_init(struct tm6000_core *dev)
{
	struct tm6000_dvb *dvb;
	int rc;

	if (!dev)
		return 0;

	if (!dev->caps.has_dvb)
		return 0;

	dvb = kzalloc(sizeof(struct tm6000_dvb), GFP_KERNEL);
	if (!dvb) {
		printk(KERN_INFO "Cannot allocate memory\n");
		return -ENOMEM;
	}

	dev->dvb = dvb;

	rc = register_dvb(dev);
	if (rc < 0) {
		kfree(dvb);
		dev->dvb = NULL;
		return 0;
	}

	return 0;
}

static int dvb_fini(struct tm6000_core *dev)
{
	if (!dev)
		return 0;

	if (!dev->caps.has_dvb)
		return 0;

	if (dev->dvb) {
		unregister_dvb(dev);
		kfree(dev->dvb);
		dev->dvb = NULL;
	}

	return 0;
}

static struct tm6000_ops dvb_ops = {
	.type	= TM6000_DVB,
	.name	= "TM6000 dvb Extension",
	.init	= dvb_init,
	.fini	= dvb_fini,
};

static int __init tm6000_dvb_register(void)
{
	return tm6000_register_extension(&dvb_ops);
}

static void __exit tm6000_dvb_unregister(void)
{
	tm6000_unregister_extension(&dvb_ops);
}

module_init(tm6000_dvb_register);
module_exit(tm6000_dvb_unregister);
Commit	Line	Data
3169c9b2	1	/*
e28f49b0	2	tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices
3169c9b2 ML	3
	4	Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.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 version 2
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program; if not, write to the Free Software
	17	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18	*/
	19
08e60ba0	20	#include <linux/kernel.h>
4ef09889	21	#include <linux/slab.h>
3169c9b2 ML	22	#include <linux/usb.h>
	23
	24	#include "tm6000.h"
	25	#include "tm6000-regs.h"
	26
3169c9b2 ML	27	#include "zl10353.h"
	28
	29	#include <media/tuner.h>
	30
5b74c2c7	31	#include "tuner-xc2028.h"
7e2d9820	32	#include "xc5000.h"
5b74c2c7	33
cee3926f SR	34	MODULE_DESCRIPTION("DVB driver extension module for tm5600/6000/6010 based TV cards");
	35	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
	36	MODULE_LICENSE("GPL");
	37
	38	MODULE_SUPPORTED_DEVICE("{{Trident, tm5600},"
	39	"{{Trident, tm6000},"
	40	"{{Trident, tm6010}");
	41
	42	static int debug;
	43
	44	module_param(debug, int, 0644);
	45	MODULE_PARM_DESC(debug, "enable debug message");
	46
52e0a72a TT	47	static inline void print_err_status(struct tm6000_core *dev,
52e0a72a TT	48	int packet, int status)
08e60ba0 SR	49	{
	50	char *errmsg = "Unknown";
	51
52e0a72a	52	switch (status) {
08e60ba0 SR	53	case -ENOENT:
	54	errmsg = "unlinked synchronuously";
	55	break;
	56	case -ECONNRESET:
	57	errmsg = "unlinked asynchronuously";
	58	break;
	59	case -ENOSR:
	60	errmsg = "Buffer error (overrun)";
	61	break;
	62	case -EPIPE:
	63	errmsg = "Stalled (device not responding)";
	64	break;
	65	case -EOVERFLOW:
	66	errmsg = "Babble (bad cable?)";
	67	break;
	68	case -EPROTO:
	69	errmsg = "Bit-stuff error (bad cable?)";
	70	break;
	71	case -EILSEQ:
	72	errmsg = "CRC/Timeout (could be anything)";
	73	break;
	74	case -ETIME:
	75	errmsg = "Device does not respond";
	76	break;
	77	}
52e0a72a	78	if (packet < 0) {
08e60ba0 SR	79	dprintk(dev, 1, "URB status %d [%s].\n",
	80	status, errmsg);
	81	} else {
	82	dprintk(dev, 1, "URB packet %d, status %d [%s].\n",
	83	packet, status, errmsg);
	84	}
	85	}
	86
3169c9b2 ML	87	static void tm6000_urb_received(struct urb *urb)
	88	{
	89	int ret;
52e0a72a	90	struct tm6000_core *dev = urb->context;
3169c9b2	91
52e0a72a TT	92	if (urb->status != 0)
	93	print_err_status(dev, 0, urb->status);
	94	else if (urb->actual_length > 0)
3169c9b2 ML	95	dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
3169c9b2 ML	96	urb->actual_length);
3169c9b2	97
52e0a72a	98	if (dev->dvb->streams > 0) {
3169c9b2	99	ret = usb_submit_urb(urb, GFP_ATOMIC);
52e0a72a	100	if (ret < 0) {
3169c9b2 ML	101	printk(KERN_ERR "tm6000: error %s\n", __FUNCTION__);
	102	kfree(urb->transfer_buffer);
	103	usb_free_urb(urb);
	104	}
	105	}
	106	}
	107
	108	int tm6000_start_stream(struct tm6000_core *dev)
	109	{
	110	int ret;
08e60ba0	111	unsigned int pipe, size;
3169c9b2 ML	112	struct tm6000_dvb *dvb = dev->dvb;
3169c9b2 ML	113
52e0a72a	114	printk(KERN_INFO "tm6000: got start stream request %s\n", __FUNCTION__);
3169c9b2	115
dcf5d3aa SR	116	if (dev->mode != TM6000_MODE_DIGITAL) {
	117	tm6000_init_digital_mode(dev);
	118	dev->mode = TM6000_MODE_DIGITAL;
	119	}
3169c9b2	120
3169c9b2	121	dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
52e0a72a	122	if (dvb->bulk_urb == NULL) {
3169c9b2 ML	123	printk(KERN_ERR "tm6000: couldn't allocate urb\n");
	124	return -ENOMEM;
	125	}
	126
6ae635c4	127	pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in.endp->desc.bEndpointAddress
08e60ba0 SR	128	& USB_ENDPOINT_NUMBER_MASK);
	129
	130	size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
	131	size = size * 15; /* 512 x 8 or 12 or 15 */
3169c9b2	132
08e60ba0	133	dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
52e0a72a	134	if (dvb->bulk_urb->transfer_buffer == NULL) {
3169c9b2 ML	135	usb_free_urb(dvb->bulk_urb);
	136	printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n");
	137	return -ENOMEM;
	138	}
	139
3169c9b2 ML	140	usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe,
3169c9b2 ML	141	dvb->bulk_urb->transfer_buffer,
08e60ba0	142	size,
3169c9b2	143	tm6000_urb_received, dev);
4386136d	144
3169c9b2	145	ret = usb_clear_halt(dev->udev, pipe);
52e0a72a TT	146	if (ret < 0) {
	147	printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",
	148	ret, __FUNCTION__);
4386136d	149	return ret;
52e0a72a	150	} else
3169c9b2	151	printk(KERN_ERR "tm6000: pipe resetted\n");
3169c9b2	152
08e60ba0	153	/* mutex_lock(&tm6000_driver.open_close_mutex); */
3169c9b2 ML	154	ret = usb_submit_urb(dvb->bulk_urb, GFP_KERNEL);
3169c9b2 ML	155
08e60ba0	156	/* mutex_unlock(&tm6000_driver.open_close_mutex); */
3169c9b2	157	if (ret) {
52e0a72a TT	158	printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",
52e0a72a TT	159	ret);
3169c9b2 ML	160
	161	kfree(dvb->bulk_urb->transfer_buffer);
	162	usb_free_urb(dvb->bulk_urb);
	163	return ret;
	164	}
	165
	166	return 0;
	167	}
	168
	169	void tm6000_stop_stream(struct tm6000_core *dev)
	170	{
	171	struct tm6000_dvb *dvb = dev->dvb;
	172
52e0a72a TT	173	if (dvb->bulk_urb) {
52e0a72a TT	174	printk(KERN_INFO "urb killing\n");
3169c9b2	175	usb_kill_urb(dvb->bulk_urb);
52e0a72a	176	printk(KERN_INFO "urb buffer free\n");
3169c9b2 ML	177	kfree(dvb->bulk_urb->transfer_buffer);
	178	usb_free_urb(dvb->bulk_urb);
	179	dvb->bulk_urb = NULL;
	180	}
	181	}
	182
	183	int tm6000_start_feed(struct dvb_demux_feed *feed)
	184	{
	185	struct dvb_demux *demux = feed->demux;
	186	struct tm6000_core *dev = demux->priv;
	187	struct tm6000_dvb *dvb = dev->dvb;
52e0a72a	188	printk(KERN_INFO "tm6000: got start feed request %s\n", __FUNCTION__);
3169c9b2 ML	189
3169c9b2 ML	190	mutex_lock(&dvb->mutex);
52e0a72a	191	if (dvb->streams == 0) {
3169c9b2	192	dvb->streams = 1;
08e60ba0	193	/* mutex_init(&tm6000_dev->streming_mutex); */
3169c9b2	194	tm6000_start_stream(dev);
52e0a72a	195	} else
3169c9b2	196	++(dvb->streams);
3169c9b2 ML	197	mutex_unlock(&dvb->mutex);
	198
	199	return 0;
	200	}
	201
52e0a72a TT	202	int tm6000_stop_feed(struct dvb_demux_feed *feed)
52e0a72a TT	203	{
3169c9b2 ML	204	struct dvb_demux *demux = feed->demux;
	205	struct tm6000_core *dev = demux->priv;
	206	struct tm6000_dvb *dvb = dev->dvb;
	207
52e0a72a	208	printk(KERN_INFO "tm6000: got stop feed request %s\n", __FUNCTION__);
3169c9b2 ML	209
3169c9b2 ML	210	mutex_lock(&dvb->mutex);
3169c9b2	211
52e0a72a	212	printk(KERN_INFO "stream %#x\n", dvb->streams);
08e60ba0	213	--(dvb->streams);
52e0a72a TT	214	if (dvb->streams == 0) {
52e0a72a TT	215	printk(KERN_INFO "stop stream\n");
3169c9b2	216	tm6000_stop_stream(dev);
08e60ba0	217	/* mutex_destroy(&tm6000_dev->streaming_mutex); */
3169c9b2 ML	218	}
3169c9b2 ML	219	mutex_unlock(&dvb->mutex);
08e60ba0	220	/* mutex_destroy(&tm6000_dev->streaming_mutex); */
3169c9b2 ML	221
	222	return 0;
	223	}
	224
	225	int tm6000_dvb_attach_frontend(struct tm6000_core *dev)
	226	{
	227	struct tm6000_dvb *dvb = dev->dvb;
	228
52e0a72a TT	229	if (dev->caps.has_zl10353) {
	230	struct zl10353_config config = {
	231	.demod_address = dev->demod_addr,
3169c9b2	232	.no_tuner = 1,
08e60ba0 SR	233	.parallel_ts = 1,
	234	.if2 = 45700,
	235	.disable_i2c_gate_ctrl = 1,
3169c9b2 ML	236	};
3169c9b2 ML	237
89eeda67	238	dvb->frontend = dvb_attach(zl10353_attach, &config,
3169c9b2	239	&dev->i2c_adap);
52e0a72a	240	} else {
3169c9b2 ML	241	printk(KERN_ERR "tm6000: no frontend defined for the device!\n");
	242	return -1;
	243	}
	244
70bfae5a	245	return (!dvb->frontend) ? -1 : 0;
3169c9b2 ML	246	}
3169c9b2 ML	247
1b4c5b1f MM	248	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
1b4c5b1f MM	249
cee3926f	250	int register_dvb(struct tm6000_core *dev)
3169c9b2 ML	251	{
	252	int ret = -1;
	253	struct tm6000_dvb *dvb = dev->dvb;
	254
	255	mutex_init(&dvb->mutex);
	256
	257	dvb->streams = 0;
	258
	259	/* attach the frontend */
	260	ret = tm6000_dvb_attach_frontend(dev);
52e0a72a	261	if (ret < 0) {
3169c9b2	262	printk(KERN_ERR "tm6000: couldn't attach the frontend!\n");
70bfae5a	263	goto err;
3169c9b2 ML	264	}
	265
	266	ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
52e0a72a	267	THIS_MODULE, &dev->udev->dev, adapter_nr);
3169c9b2 ML	268	dvb->adapter.priv = dev;
3169c9b2 ML	269
5b74c2c7	270	if (dvb->frontend) {
7e2d9820 SR	271	switch (dev->tuner_type) {
	272	case TUNER_XC2028: {
	273	struct xc2028_config cfg = {
	274	.i2c_adap = &dev->i2c_adap,
	275	.i2c_addr = dev->tuner_addr,
	276	};
	277
	278	dvb->frontend->callback = tm6000_tuner_callback;
	279	ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	280	if (ret < 0) {
	281	printk(KERN_ERR
	282	"tm6000: couldn't register frontend\n");
	283	goto adapter_err;
	284	}
	285
	286	if (!dvb_attach(xc2028_attach, dvb->frontend, &cfg)) {
	287	printk(KERN_ERR "tm6000: couldn't register "
	288	"frontend (xc3028)\n");
	289	ret = -EINVAL;
	290	goto frontend_err;
	291	}
	292	printk(KERN_INFO "tm6000: XC2028/3028 asked to be "
	293	"attached to frontend!\n");
	294	break;
	295	}
	296	case TUNER_XC5000: {
	297	struct xc5000_config cfg = {
	298	.i2c_address = dev->tuner_addr,
	299	};
	300
	301	dvb->frontend->callback = tm6000_xc5000_callback;
	302	ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	303	if (ret < 0) {
	304	printk(KERN_ERR
	305	"tm6000: couldn't register frontend\n");
	306	goto adapter_err;
	307	}
	308
	309	if (!dvb_attach(xc5000_attach, dvb->frontend, &dev->i2c_adap, &cfg)) {
	310	printk(KERN_ERR "tm6000: couldn't register "
	311	"frontend (xc5000)\n");
	312	ret = -EINVAL;
	313	goto frontend_err;
	314	}
	315	printk(KERN_INFO "tm6000: XC5000 asked to be "
	316	"attached to frontend!\n");
	317	break;
	318	}
3169c9b2	319	}
52e0a72a	320	} else
5b74c2c7	321	printk(KERN_ERR "tm6000: no frontend found\n");
3169c9b2 ML	322
	323	dvb->demux.dmx.capabilities = DMX_TS_FILTERING \| DMX_SECTION_FILTERING
	324	\| DMX_MEMORY_BASED_FILTERING;
	325	dvb->demux.priv = dev;
38d75a79 SR	326	dvb->demux.filternum = 8;
38d75a79 SR	327	dvb->demux.feednum = 8;
3169c9b2 ML	328	dvb->demux.start_feed = tm6000_start_feed;
	329	dvb->demux.stop_feed = tm6000_stop_feed;
	330	dvb->demux.write_to_decoder = NULL;
	331	ret = dvb_dmx_init(&dvb->demux);
52e0a72a	332	if (ret < 0) {
3169c9b2 ML	333	printk("tm6000: dvb_dmx_init failed (errno = %d)\n", ret);
	334	goto frontend_err;
	335	}
	336
	337	dvb->dmxdev.filternum = dev->dvb->demux.filternum;
	338	dvb->dmxdev.demux = &dev->dvb->demux.dmx;
	339	dvb->dmxdev.capabilities = 0;
	340
	341	ret = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
52e0a72a	342	if (ret < 0) {
3169c9b2 ML	343	printk("tm6000: dvb_dmxdev_init failed (errno = %d)\n", ret);
	344	goto dvb_dmx_err;
	345	}
	346
	347	return 0;
	348
	349	dvb_dmx_err:
	350	dvb_dmx_release(&dvb->demux);
	351	frontend_err:
52e0a72a	352	if (dvb->frontend) {
70bfae5a	353	dvb_frontend_detach(dvb->frontend);
3169c9b2 ML	354	dvb_unregister_frontend(dvb->frontend);
	355	}
	356	adapter_err:
	357	dvb_unregister_adapter(&dvb->adapter);
	358	err:
	359	return ret;
	360	}
	361
cee3926f	362	void unregister_dvb(struct tm6000_core *dev)
3169c9b2 ML	363	{
	364	struct tm6000_dvb *dvb = dev->dvb;
	365
52e0a72a	366	if (dvb->bulk_urb != NULL) {
3169c9b2 ML	367	struct urb *bulk_urb = dvb->bulk_urb;
	368
	369	kfree(bulk_urb->transfer_buffer);
	370	bulk_urb->transfer_buffer = NULL;
	371	usb_unlink_urb(bulk_urb);
	372	usb_free_urb(bulk_urb);
	373	}
	374
08e60ba0	375	/* mutex_lock(&tm6000_driver.open_close_mutex); */
52e0a72a	376	if (dvb->frontend) {
70bfae5a	377	dvb_frontend_detach(dvb->frontend);
3169c9b2 ML	378	dvb_unregister_frontend(dvb->frontend);
	379	}
	380
	381	dvb_dmxdev_release(&dvb->dmxdev);
	382	dvb_dmx_release(&dvb->demux);
	383	dvb_unregister_adapter(&dvb->adapter);
	384	mutex_destroy(&dvb->mutex);
08e60ba0	385	/* mutex_unlock(&tm6000_driver.open_close_mutex); */
3169c9b2	386	}
cee3926f SR	387
	388	static int dvb_init(struct tm6000_core *dev)
	389	{
	390	struct tm6000_dvb *dvb;
	391	int rc;
	392
	393	if (!dev)
	394	return 0;
	395
	396	if (!dev->caps.has_dvb)
	397	return 0;
	398
	399	dvb = kzalloc(sizeof(struct tm6000_dvb), GFP_KERNEL);
	400	if (!dvb) {
	401	printk(KERN_INFO "Cannot allocate memory\n");
	402	return -ENOMEM;
	403	}
	404
	405	dev->dvb = dvb;
	406
	407	rc = register_dvb(dev);
	408	if (rc < 0) {
	409	kfree(dvb);
	410	dev->dvb = NULL;
	411	return 0;
	412	}
	413
	414	return 0;
	415	}
	416
	417	static int dvb_fini(struct tm6000_core *dev)
	418	{
	419	if (!dev)
	420	return 0;
	421
	422	if (!dev->caps.has_dvb)
	423	return 0;
	424
	425	if (dev->dvb) {
	426	unregister_dvb(dev);
	427	kfree(dev->dvb);
	428	dev->dvb = NULL;
	429	}
	430
	431	return 0;
	432	}
	433
	434	static struct tm6000_ops dvb_ops = {
39e1256b	435	.type = TM6000_DVB,
cee3926f SR	436	.name = "TM6000 dvb Extension",
	437	.init = dvb_init,
	438	.fini = dvb_fini,
	439	};
	440
	441	static int __init tm6000_dvb_register(void)
	442	{
	443	return tm6000_register_extension(&dvb_ops);
	444	}
	445
	446	static void __exit tm6000_dvb_unregister(void)
	447	{
	448	tm6000_unregister_extension(&dvb_ops);
	449	}
	450
	451	module_init(tm6000_dvb_register);
	452	module_exit(tm6000_dvb_unregister);