[deliverable/linux.git] / drivers / media / usb / 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");
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;

	switch (urb->status) {
	case 0:
	case -ETIMEDOUT:
		break;
	case -ENOENT:
	case -ECONNRESET:
	case -ESHUTDOWN:
		return;
	default:
		print_err_status(dev, 0, urb->status);
	}

	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", __func__);
			kfree(urb->transfer_buffer);
			usb_free_urb(urb);
		}
	}
}

static 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", __func__);

	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)
		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, __func__);
		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_ATOMIC);

/*	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;
}

static 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;
	}
}

static 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", __func__);

	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;
}

static 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", __func__);

	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;
}

static 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);

static 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(KERN_ERR "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(KERN_ERR "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_unregister_frontend(dvb->frontend);
		dvb_frontend_detach(dvb->frontend);
	}
adapter_err:
	dvb_unregister_adapter(&dvb->adapter);
err:
	return ret;
}

static 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_unregister_frontend(dvb->frontend);
		dvb_frontend_detach(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;

	if (dev->udev->speed == USB_SPEED_FULL) {
		printk(KERN_INFO "This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)\n");
		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	/*
d0058645 RP	2	* tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices
	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.
3169c9b2 ML	18	*/
3169c9b2 ML	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	34	MODULE_DESCRIPTION("DVB driver extension module for tm5600/6000/6010 based TV cards");
37e59f87	35	MODULE_AUTHOR("Mauro Carvalho Chehab");
cee3926f SR	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
de2a20ba SR	92	switch (urb->status) {
	93	case 0:
	94	case -ETIMEDOUT:
	95	break;
	96	case -ENOENT:
	97	case -ECONNRESET:
	98	case -ESHUTDOWN:
	99	return;
	100	default:
52e0a72a	101	print_err_status(dev, 0, urb->status);
de2a20ba SR	102	}
	103
	104	if (urb->actual_length > 0)
3169c9b2 ML	105	dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
3169c9b2 ML	106	urb->actual_length);
3169c9b2	107
52e0a72a	108	if (dev->dvb->streams > 0) {
3169c9b2	109	ret = usb_submit_urb(urb, GFP_ATOMIC);
52e0a72a	110	if (ret < 0) {
94b27661	111	printk(KERN_ERR "tm6000: error %s\n", __func__);
3169c9b2 ML	112	kfree(urb->transfer_buffer);
	113	usb_free_urb(urb);
	114	}
	115	}
	116	}
	117
3d1a51db	118	static int tm6000_start_stream(struct tm6000_core *dev)
3169c9b2 ML	119	{
3169c9b2 ML	120	int ret;
08e60ba0	121	unsigned int pipe, size;
3169c9b2 ML	122	struct tm6000_dvb *dvb = dev->dvb;
3169c9b2 ML	123
94b27661	124	printk(KERN_INFO "tm6000: got start stream request %s\n", __func__);
3169c9b2	125
dcf5d3aa SR	126	if (dev->mode != TM6000_MODE_DIGITAL) {
	127	tm6000_init_digital_mode(dev);
	128	dev->mode = TM6000_MODE_DIGITAL;
	129	}
3169c9b2	130
3169c9b2	131	dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
b7eca8d4	132	if (dvb->bulk_urb == NULL)
3169c9b2	133	return -ENOMEM;
3169c9b2	134
6ae635c4	135	pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in.endp->desc.bEndpointAddress
08e60ba0 SR	136	& USB_ENDPOINT_NUMBER_MASK);
	137
	138	size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
	139	size = size * 15; /* 512 x 8 or 12 or 15 */
3169c9b2	140
08e60ba0	141	dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
52e0a72a	142	if (dvb->bulk_urb->transfer_buffer == NULL) {
3169c9b2 ML	143	usb_free_urb(dvb->bulk_urb);
	144	printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n");
	145	return -ENOMEM;
	146	}
	147
3169c9b2 ML	148	usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe,
3169c9b2 ML	149	dvb->bulk_urb->transfer_buffer,
08e60ba0	150	size,
3169c9b2	151	tm6000_urb_received, dev);
4386136d	152
3169c9b2	153	ret = usb_clear_halt(dev->udev, pipe);
52e0a72a TT	154	if (ret < 0) {
52e0a72a TT	155	printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",
94b27661	156	ret, __func__);
4386136d	157	return ret;
52e0a72a	158	} else
3169c9b2	159	printk(KERN_ERR "tm6000: pipe resetted\n");
3169c9b2	160
08e60ba0	161	/* mutex_lock(&tm6000_driver.open_close_mutex); */
de2a20ba	162	ret = usb_submit_urb(dvb->bulk_urb, GFP_ATOMIC);
3169c9b2	163
08e60ba0	164	/* mutex_unlock(&tm6000_driver.open_close_mutex); */
3169c9b2	165	if (ret) {
52e0a72a TT	166	printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",
52e0a72a TT	167	ret);
3169c9b2 ML	168
	169	kfree(dvb->bulk_urb->transfer_buffer);
	170	usb_free_urb(dvb->bulk_urb);
	171	return ret;
	172	}
	173
	174	return 0;
	175	}
	176
3d1a51db	177	static void tm6000_stop_stream(struct tm6000_core *dev)
3169c9b2 ML	178	{
	179	struct tm6000_dvb *dvb = dev->dvb;
	180
52e0a72a TT	181	if (dvb->bulk_urb) {
52e0a72a TT	182	printk(KERN_INFO "urb killing\n");
3169c9b2	183	usb_kill_urb(dvb->bulk_urb);
52e0a72a	184	printk(KERN_INFO "urb buffer free\n");
3169c9b2 ML	185	kfree(dvb->bulk_urb->transfer_buffer);
	186	usb_free_urb(dvb->bulk_urb);
	187	dvb->bulk_urb = NULL;
	188	}
	189	}
	190
3d1a51db	191	static int tm6000_start_feed(struct dvb_demux_feed *feed)
3169c9b2 ML	192	{
	193	struct dvb_demux *demux = feed->demux;
	194	struct tm6000_core *dev = demux->priv;
	195	struct tm6000_dvb *dvb = dev->dvb;
94b27661	196	printk(KERN_INFO "tm6000: got start feed request %s\n", __func__);
3169c9b2 ML	197
3169c9b2 ML	198	mutex_lock(&dvb->mutex);
52e0a72a	199	if (dvb->streams == 0) {
3169c9b2	200	dvb->streams = 1;
08e60ba0	201	/* mutex_init(&tm6000_dev->streming_mutex); */
3169c9b2	202	tm6000_start_stream(dev);
52e0a72a	203	} else
3169c9b2	204	++(dvb->streams);
3169c9b2 ML	205	mutex_unlock(&dvb->mutex);
	206
	207	return 0;
	208	}
	209
3d1a51db	210	static int tm6000_stop_feed(struct dvb_demux_feed *feed)
52e0a72a	211	{
3169c9b2 ML	212	struct dvb_demux *demux = feed->demux;
	213	struct tm6000_core *dev = demux->priv;
	214	struct tm6000_dvb *dvb = dev->dvb;
	215
94b27661	216	printk(KERN_INFO "tm6000: got stop feed request %s\n", __func__);
3169c9b2 ML	217
3169c9b2 ML	218	mutex_lock(&dvb->mutex);
3169c9b2	219
52e0a72a	220	printk(KERN_INFO "stream %#x\n", dvb->streams);
08e60ba0	221	--(dvb->streams);
52e0a72a TT	222	if (dvb->streams == 0) {
52e0a72a TT	223	printk(KERN_INFO "stop stream\n");
3169c9b2	224	tm6000_stop_stream(dev);
08e60ba0	225	/* mutex_destroy(&tm6000_dev->streaming_mutex); */
3169c9b2 ML	226	}
3169c9b2 ML	227	mutex_unlock(&dvb->mutex);
08e60ba0	228	/* mutex_destroy(&tm6000_dev->streaming_mutex); */
3169c9b2 ML	229
	230	return 0;
	231	}
	232
3d1a51db	233	static int tm6000_dvb_attach_frontend(struct tm6000_core *dev)
3169c9b2 ML	234	{
	235	struct tm6000_dvb *dvb = dev->dvb;
	236
52e0a72a TT	237	if (dev->caps.has_zl10353) {
	238	struct zl10353_config config = {
	239	.demod_address = dev->demod_addr,
3169c9b2	240	.no_tuner = 1,
08e60ba0 SR	241	.parallel_ts = 1,
	242	.if2 = 45700,
	243	.disable_i2c_gate_ctrl = 1,
3169c9b2 ML	244	};
3169c9b2 ML	245
89eeda67	246	dvb->frontend = dvb_attach(zl10353_attach, &config,
3169c9b2	247	&dev->i2c_adap);
52e0a72a	248	} else {
3169c9b2 ML	249	printk(KERN_ERR "tm6000: no frontend defined for the device!\n");
	250	return -1;
	251	}
	252
70bfae5a	253	return (!dvb->frontend) ? -1 : 0;
3169c9b2 ML	254	}
3169c9b2 ML	255
1b4c5b1f MM	256	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
1b4c5b1f MM	257
3d1a51db	258	static int register_dvb(struct tm6000_core *dev)
3169c9b2 ML	259	{
	260	int ret = -1;
	261	struct tm6000_dvb *dvb = dev->dvb;
	262
	263	mutex_init(&dvb->mutex);
	264
	265	dvb->streams = 0;
	266
	267	/* attach the frontend */
	268	ret = tm6000_dvb_attach_frontend(dev);
52e0a72a	269	if (ret < 0) {
3169c9b2	270	printk(KERN_ERR "tm6000: couldn't attach the frontend!\n");
70bfae5a	271	goto err;
3169c9b2 ML	272	}
	273
	274	ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
52e0a72a	275	THIS_MODULE, &dev->udev->dev, adapter_nr);
3169c9b2 ML	276	dvb->adapter.priv = dev;
3169c9b2 ML	277
5b74c2c7	278	if (dvb->frontend) {
7e2d9820 SR	279	switch (dev->tuner_type) {
	280	case TUNER_XC2028: {
	281	struct xc2028_config cfg = {
	282	.i2c_adap = &dev->i2c_adap,
	283	.i2c_addr = dev->tuner_addr,
	284	};
	285
	286	dvb->frontend->callback = tm6000_tuner_callback;
	287	ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	288	if (ret < 0) {
	289	printk(KERN_ERR
	290	"tm6000: couldn't register frontend\n");
	291	goto adapter_err;
	292	}
	293
	294	if (!dvb_attach(xc2028_attach, dvb->frontend, &cfg)) {
	295	printk(KERN_ERR "tm6000: couldn't register "
	296	"frontend (xc3028)\n");
	297	ret = -EINVAL;
	298	goto frontend_err;
	299	}
	300	printk(KERN_INFO "tm6000: XC2028/3028 asked to be "
	301	"attached to frontend!\n");
	302	break;
	303	}
	304	case TUNER_XC5000: {
	305	struct xc5000_config cfg = {
	306	.i2c_address = dev->tuner_addr,
	307	};
	308
	309	dvb->frontend->callback = tm6000_xc5000_callback;
	310	ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	311	if (ret < 0) {
	312	printk(KERN_ERR
	313	"tm6000: couldn't register frontend\n");
	314	goto adapter_err;
	315	}
	316
	317	if (!dvb_attach(xc5000_attach, dvb->frontend, &dev->i2c_adap, &cfg)) {
	318	printk(KERN_ERR "tm6000: couldn't register "
	319	"frontend (xc5000)\n");
	320	ret = -EINVAL;
	321	goto frontend_err;
	322	}
	323	printk(KERN_INFO "tm6000: XC5000 asked to be "
	324	"attached to frontend!\n");
	325	break;
	326	}
3169c9b2	327	}
52e0a72a	328	} else
5b74c2c7	329	printk(KERN_ERR "tm6000: no frontend found\n");
3169c9b2 ML	330
	331	dvb->demux.dmx.capabilities = DMX_TS_FILTERING \| DMX_SECTION_FILTERING
	332	\| DMX_MEMORY_BASED_FILTERING;
	333	dvb->demux.priv = dev;
38d75a79 SR	334	dvb->demux.filternum = 8;
38d75a79 SR	335	dvb->demux.feednum = 8;
3169c9b2 ML	336	dvb->demux.start_feed = tm6000_start_feed;
	337	dvb->demux.stop_feed = tm6000_stop_feed;
	338	dvb->demux.write_to_decoder = NULL;
	339	ret = dvb_dmx_init(&dvb->demux);
52e0a72a	340	if (ret < 0) {
45dbf0db	341	printk(KERN_ERR "tm6000: dvb_dmx_init failed (errno = %d)\n", ret);
3169c9b2 ML	342	goto frontend_err;
	343	}
	344
	345	dvb->dmxdev.filternum = dev->dvb->demux.filternum;
	346	dvb->dmxdev.demux = &dev->dvb->demux.dmx;
	347	dvb->dmxdev.capabilities = 0;
	348
	349	ret = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
52e0a72a	350	if (ret < 0) {
45dbf0db	351	printk(KERN_ERR "tm6000: dvb_dmxdev_init failed (errno = %d)\n", ret);
3169c9b2 ML	352	goto dvb_dmx_err;
	353	}
	354
	355	return 0;
	356
	357	dvb_dmx_err:
	358	dvb_dmx_release(&dvb->demux);
	359	frontend_err:
52e0a72a	360	if (dvb->frontend) {
3169c9b2	361	dvb_unregister_frontend(dvb->frontend);
afca99a2	362	dvb_frontend_detach(dvb->frontend);
3169c9b2 ML	363	}
	364	adapter_err:
	365	dvb_unregister_adapter(&dvb->adapter);
	366	err:
	367	return ret;
	368	}
	369
3d1a51db	370	static void unregister_dvb(struct tm6000_core *dev)
3169c9b2 ML	371	{
	372	struct tm6000_dvb *dvb = dev->dvb;
	373
52e0a72a	374	if (dvb->bulk_urb != NULL) {
3169c9b2 ML	375	struct urb *bulk_urb = dvb->bulk_urb;
	376
	377	kfree(bulk_urb->transfer_buffer);
	378	bulk_urb->transfer_buffer = NULL;
	379	usb_unlink_urb(bulk_urb);
	380	usb_free_urb(bulk_urb);
	381	}
	382
08e60ba0	383	/* mutex_lock(&tm6000_driver.open_close_mutex); */
52e0a72a	384	if (dvb->frontend) {
3169c9b2	385	dvb_unregister_frontend(dvb->frontend);
afca99a2	386	dvb_frontend_detach(dvb->frontend);
3169c9b2 ML	387	}
	388
	389	dvb_dmxdev_release(&dvb->dmxdev);
	390	dvb_dmx_release(&dvb->demux);
	391	dvb_unregister_adapter(&dvb->adapter);
	392	mutex_destroy(&dvb->mutex);
08e60ba0	393	/* mutex_unlock(&tm6000_driver.open_close_mutex); */
3169c9b2	394	}
cee3926f SR	395
	396	static int dvb_init(struct tm6000_core *dev)
	397	{
	398	struct tm6000_dvb *dvb;
	399	int rc;
	400
	401	if (!dev)
	402	return 0;
	403
	404	if (!dev->caps.has_dvb)
	405	return 0;
	406
c81c0060	407	if (dev->udev->speed == USB_SPEED_FULL) {
	408	printk(KERN_INFO "This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)\n");
	409	return 0;
	410	}
	411
cee3926f SR	412	dvb = kzalloc(sizeof(struct tm6000_dvb), GFP_KERNEL);
	413	if (!dvb) {
	414	printk(KERN_INFO "Cannot allocate memory\n");
	415	return -ENOMEM;
	416	}
	417
	418	dev->dvb = dvb;
	419
	420	rc = register_dvb(dev);
	421	if (rc < 0) {
	422	kfree(dvb);
	423	dev->dvb = NULL;
	424	return 0;
	425	}
	426
	427	return 0;
	428	}
	429
	430	static int dvb_fini(struct tm6000_core *dev)
	431	{
	432	if (!dev)
	433	return 0;
	434
	435	if (!dev->caps.has_dvb)
	436	return 0;
	437
	438	if (dev->dvb) {
	439	unregister_dvb(dev);
	440	kfree(dev->dvb);
	441	dev->dvb = NULL;
	442	}
	443
	444	return 0;
	445	}
	446
	447	static struct tm6000_ops dvb_ops = {
39e1256b	448	.type = TM6000_DVB,
cee3926f SR	449	.name = "TM6000 dvb Extension",
	450	.init = dvb_init,
	451	.fini = dvb_fini,
	452	};
	453
	454	static int __init tm6000_dvb_register(void)
	455	{
	456	return tm6000_register_extension(&dvb_ops);
	457	}
	458
	459	static void __exit tm6000_dvb_unregister(void)
	460	{
	461	tm6000_unregister_extension(&dvb_ops);
	462	}
	463
	464	module_init(tm6000_dvb_register);
	465	module_exit(tm6000_dvb_unregister);