[mirror_ubuntu-jammy-kernel.git] / drivers / media / usb / tm6000 / tm6000-dvb.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices
 *
 *  Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
 */

#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");

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 synchronously";
		break;
	case -ECONNRESET:
		errmsg = "unlinked asynchronously";
		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);
			dev->dvb->bulk_urb = NULL;
		}
	}
}

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)
		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) {
		usb_free_urb(dvb->bulk_urb);
		dvb->bulk_urb = NULL;
		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__);

		kfree(dvb->bulk_urb->transfer_buffer);
		usb_free_urb(dvb->bulk_urb);
		dvb->bulk_urb = NULL;
		return ret;
	} else
		printk(KERN_ERR "tm6000: pipe reset\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);
		dvb->bulk_urb = NULL;
		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);
	if (ret < 0) {
		pr_err("tm6000: couldn't register the adapter!\n");
		goto err;
	}

	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) {
		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)
		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
50acfb2b	1	// SPDX-License-Identifier: GPL-2.0-only
3169c9b2	2	/*
d0058645 RP	3	* tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices
	4	*
	5	* Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
3169c9b2 ML	6	*/
3169c9b2 ML	7
08e60ba0	8	#include <linux/kernel.h>
4ef09889	9	#include <linux/slab.h>
3169c9b2 ML	10	#include <linux/usb.h>
	11
	12	#include "tm6000.h"
	13	#include "tm6000-regs.h"
	14
3169c9b2 ML	15	#include "zl10353.h"
	16
	17	#include <media/tuner.h>
	18
5b74c2c7	19	#include "tuner-xc2028.h"
7e2d9820	20	#include "xc5000.h"
5b74c2c7	21
cee3926f	22	MODULE_DESCRIPTION("DVB driver extension module for tm5600/6000/6010 based TV cards");
37e59f87	23	MODULE_AUTHOR("Mauro Carvalho Chehab");
cee3926f SR	24	MODULE_LICENSE("GPL");
cee3926f SR	25
cee3926f SR	26	static int debug;
	27
	28	module_param(debug, int, 0644);
	29	MODULE_PARM_DESC(debug, "enable debug message");
	30
52e0a72a TT	31	static inline void print_err_status(struct tm6000_core *dev,
52e0a72a TT	32	int packet, int status)
08e60ba0 SR	33	{
	34	char *errmsg = "Unknown";
	35
52e0a72a	36	switch (status) {
08e60ba0	37	case -ENOENT:
b436e26e	38	errmsg = "unlinked synchronously";
08e60ba0 SR	39	break;
08e60ba0 SR	40	case -ECONNRESET:
b436e26e	41	errmsg = "unlinked asynchronously";
08e60ba0 SR	42	break;
	43	case -ENOSR:
	44	errmsg = "Buffer error (overrun)";
	45	break;
	46	case -EPIPE:
	47	errmsg = "Stalled (device not responding)";
	48	break;
	49	case -EOVERFLOW:
	50	errmsg = "Babble (bad cable?)";
	51	break;
	52	case -EPROTO:
	53	errmsg = "Bit-stuff error (bad cable?)";
	54	break;
	55	case -EILSEQ:
	56	errmsg = "CRC/Timeout (could be anything)";
	57	break;
	58	case -ETIME:
	59	errmsg = "Device does not respond";
	60	break;
	61	}
52e0a72a	62	if (packet < 0) {
08e60ba0 SR	63	dprintk(dev, 1, "URB status %d [%s].\n",
	64	status, errmsg);
	65	} else {
	66	dprintk(dev, 1, "URB packet %d, status %d [%s].\n",
	67	packet, status, errmsg);
	68	}
	69	}
	70
3169c9b2 ML	71	static void tm6000_urb_received(struct urb *urb)
	72	{
	73	int ret;
52e0a72a	74	struct tm6000_core *dev = urb->context;
3169c9b2	75
de2a20ba SR	76	switch (urb->status) {
	77	case 0:
	78	case -ETIMEDOUT:
	79	break;
	80	case -ENOENT:
	81	case -ECONNRESET:
	82	case -ESHUTDOWN:
	83	return;
	84	default:
52e0a72a	85	print_err_status(dev, 0, urb->status);
de2a20ba SR	86	}
	87
	88	if (urb->actual_length > 0)
3169c9b2 ML	89	dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
3169c9b2 ML	90	urb->actual_length);
3169c9b2	91
52e0a72a	92	if (dev->dvb->streams > 0) {
3169c9b2	93	ret = usb_submit_urb(urb, GFP_ATOMIC);
52e0a72a	94	if (ret < 0) {
94b27661	95	printk(KERN_ERR "tm6000: error %s\n", __func__);
3169c9b2 ML	96	kfree(urb->transfer_buffer);
3169c9b2 ML	97	usb_free_urb(urb);
699bf941	98	dev->dvb->bulk_urb = NULL;
3169c9b2 ML	99	}
	100	}
	101	}
	102
3d1a51db	103	static int tm6000_start_stream(struct tm6000_core *dev)
3169c9b2 ML	104	{
3169c9b2 ML	105	int ret;
08e60ba0	106	unsigned int pipe, size;
3169c9b2 ML	107	struct tm6000_dvb *dvb = dev->dvb;
3169c9b2 ML	108
94b27661	109	printk(KERN_INFO "tm6000: got start stream request %s\n", __func__);
3169c9b2	110
dcf5d3aa SR	111	if (dev->mode != TM6000_MODE_DIGITAL) {
	112	tm6000_init_digital_mode(dev);
	113	dev->mode = TM6000_MODE_DIGITAL;
	114	}
3169c9b2	115
3169c9b2	116	dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
7e11d502	117	if (!dvb->bulk_urb)
3169c9b2	118	return -ENOMEM;
3169c9b2	119
6ae635c4	120	pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in.endp->desc.bEndpointAddress
08e60ba0 SR	121	& USB_ENDPOINT_NUMBER_MASK);
	122
	123	size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
	124	size = size * 15; /* 512 x 8 or 12 or 15 */
3169c9b2	125
08e60ba0	126	dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
7e11d502	127	if (!dvb->bulk_urb->transfer_buffer) {
3169c9b2	128	usb_free_urb(dvb->bulk_urb);
699bf941	129	dvb->bulk_urb = NULL;
3169c9b2 ML	130	return -ENOMEM;
	131	}
	132
3169c9b2 ML	133	usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe,
3169c9b2 ML	134	dvb->bulk_urb->transfer_buffer,
08e60ba0	135	size,
3169c9b2	136	tm6000_urb_received, dev);
4386136d	137
3169c9b2	138	ret = usb_clear_halt(dev->udev, pipe);
52e0a72a TT	139	if (ret < 0) {
52e0a72a TT	140	printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",
94b27661	141	ret, __func__);
76aaf8a9 DL	142
	143	kfree(dvb->bulk_urb->transfer_buffer);
	144	usb_free_urb(dvb->bulk_urb);
	145	dvb->bulk_urb = NULL;
4386136d	146	return ret;
52e0a72a	147	} else
3e4d8f48	148	printk(KERN_ERR "tm6000: pipe reset\n");
3169c9b2	149
08e60ba0	150	/* mutex_lock(&tm6000_driver.open_close_mutex); */
de2a20ba	151	ret = usb_submit_urb(dvb->bulk_urb, GFP_ATOMIC);
3169c9b2	152
08e60ba0	153	/* mutex_unlock(&tm6000_driver.open_close_mutex); */
3169c9b2	154	if (ret) {
52e0a72a TT	155	printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",
52e0a72a TT	156	ret);
3169c9b2 ML	157
	158	kfree(dvb->bulk_urb->transfer_buffer);
	159	usb_free_urb(dvb->bulk_urb);
699bf941	160	dvb->bulk_urb = NULL;
3169c9b2 ML	161	return ret;
	162	}
	163
	164	return 0;
	165	}
	166
3d1a51db	167	static void tm6000_stop_stream(struct tm6000_core *dev)
3169c9b2 ML	168	{
	169	struct tm6000_dvb *dvb = dev->dvb;
	170
52e0a72a TT	171	if (dvb->bulk_urb) {
52e0a72a TT	172	printk(KERN_INFO "urb killing\n");
3169c9b2	173	usb_kill_urb(dvb->bulk_urb);
52e0a72a	174	printk(KERN_INFO "urb buffer free\n");
3169c9b2 ML	175	kfree(dvb->bulk_urb->transfer_buffer);
	176	usb_free_urb(dvb->bulk_urb);
	177	dvb->bulk_urb = NULL;
	178	}
	179	}
	180
3d1a51db	181	static int tm6000_start_feed(struct dvb_demux_feed *feed)
3169c9b2 ML	182	{
	183	struct dvb_demux *demux = feed->demux;
	184	struct tm6000_core *dev = demux->priv;
	185	struct tm6000_dvb *dvb = dev->dvb;
94b27661	186	printk(KERN_INFO "tm6000: got start feed request %s\n", __func__);
3169c9b2 ML	187
3169c9b2 ML	188	mutex_lock(&dvb->mutex);
52e0a72a	189	if (dvb->streams == 0) {
3169c9b2	190	dvb->streams = 1;
08e60ba0	191	/* mutex_init(&tm6000_dev->streming_mutex); */
3169c9b2	192	tm6000_start_stream(dev);
52e0a72a	193	} else
3169c9b2	194	++(dvb->streams);
3169c9b2 ML	195	mutex_unlock(&dvb->mutex);
	196
	197	return 0;
	198	}
	199
3d1a51db	200	static int tm6000_stop_feed(struct dvb_demux_feed *feed)
52e0a72a	201	{
3169c9b2 ML	202	struct dvb_demux *demux = feed->demux;
	203	struct tm6000_core *dev = demux->priv;
	204	struct tm6000_dvb *dvb = dev->dvb;
	205
94b27661	206	printk(KERN_INFO "tm6000: got stop feed request %s\n", __func__);
3169c9b2 ML	207
3169c9b2 ML	208	mutex_lock(&dvb->mutex);
3169c9b2	209
52e0a72a	210	printk(KERN_INFO "stream %#x\n", dvb->streams);
08e60ba0	211	--(dvb->streams);
52e0a72a TT	212	if (dvb->streams == 0) {
52e0a72a TT	213	printk(KERN_INFO "stop stream\n");
3169c9b2	214	tm6000_stop_stream(dev);
08e60ba0	215	/* mutex_destroy(&tm6000_dev->streaming_mutex); */
3169c9b2 ML	216	}
3169c9b2 ML	217	mutex_unlock(&dvb->mutex);
08e60ba0	218	/* mutex_destroy(&tm6000_dev->streaming_mutex); */
3169c9b2 ML	219
	220	return 0;
	221	}
	222
3d1a51db	223	static int tm6000_dvb_attach_frontend(struct tm6000_core *dev)
3169c9b2 ML	224	{
	225	struct tm6000_dvb *dvb = dev->dvb;
	226
52e0a72a TT	227	if (dev->caps.has_zl10353) {
	228	struct zl10353_config config = {
	229	.demod_address = dev->demod_addr,
3169c9b2	230	.no_tuner = 1,
08e60ba0 SR	231	.parallel_ts = 1,
	232	.if2 = 45700,
	233	.disable_i2c_gate_ctrl = 1,
3169c9b2 ML	234	};
3169c9b2 ML	235
89eeda67	236	dvb->frontend = dvb_attach(zl10353_attach, &config,
3169c9b2	237	&dev->i2c_adap);
52e0a72a	238	} else {
3169c9b2 ML	239	printk(KERN_ERR "tm6000: no frontend defined for the device!\n");
	240	return -1;
	241	}
	242
70bfae5a	243	return (!dvb->frontend) ? -1 : 0;
3169c9b2 ML	244	}
3169c9b2 ML	245
1b4c5b1f MM	246	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
1b4c5b1f MM	247
3d1a51db	248	static int register_dvb(struct tm6000_core *dev)
3169c9b2 ML	249	{
	250	int ret = -1;
	251	struct tm6000_dvb *dvb = dev->dvb;
	252
	253	mutex_init(&dvb->mutex);
	254
	255	dvb->streams = 0;
	256
	257	/* attach the frontend */
	258	ret = tm6000_dvb_attach_frontend(dev);
52e0a72a	259	if (ret < 0) {
3169c9b2	260	printk(KERN_ERR "tm6000: couldn't attach the frontend!\n");
70bfae5a	261	goto err;
3169c9b2 ML	262	}
	263
	264	ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
52e0a72a	265	THIS_MODULE, &dev->udev->dev, adapter_nr);
e95d7c6e ZJ	266	if (ret < 0) {
	267	pr_err("tm6000: couldn't register the adapter!\n");
	268	goto err;
	269	}
	270
3169c9b2 ML	271	dvb->adapter.priv = dev;
3169c9b2 ML	272
5b74c2c7	273	if (dvb->frontend) {
7e2d9820 SR	274	switch (dev->tuner_type) {
	275	case TUNER_XC2028: {
	276	struct xc2028_config cfg = {
	277	.i2c_adap = &dev->i2c_adap,
	278	.i2c_addr = dev->tuner_addr,
	279	};
	280
	281	dvb->frontend->callback = tm6000_tuner_callback;
	282	ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	283	if (ret < 0) {
	284	printk(KERN_ERR
	285	"tm6000: couldn't register frontend\n");
	286	goto adapter_err;
	287	}
	288
	289	if (!dvb_attach(xc2028_attach, dvb->frontend, &cfg)) {
68616504	290	printk(KERN_ERR "tm6000: couldn't register frontend (xc3028)\n");
7e2d9820 SR	291	ret = -EINVAL;
	292	goto frontend_err;
	293	}
68616504	294	printk(KERN_INFO "tm6000: XC2028/3028 asked to be attached to frontend!\n");
7e2d9820 SR	295	break;
	296	}
	297	case TUNER_XC5000: {
	298	struct xc5000_config cfg = {
	299	.i2c_address = dev->tuner_addr,
	300	};
	301
	302	dvb->frontend->callback = tm6000_xc5000_callback;
	303	ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	304	if (ret < 0) {
	305	printk(KERN_ERR
	306	"tm6000: couldn't register frontend\n");
	307	goto adapter_err;
	308	}
	309
	310	if (!dvb_attach(xc5000_attach, dvb->frontend, &dev->i2c_adap, &cfg)) {
68616504	311	printk(KERN_ERR "tm6000: couldn't register frontend (xc5000)\n");
7e2d9820 SR	312	ret = -EINVAL;
	313	goto frontend_err;
	314	}
68616504	315	printk(KERN_INFO "tm6000: XC5000 asked to be attached to frontend!\n");
7e2d9820 SR	316	break;
7e2d9820 SR	317	}
3169c9b2	318	}
52e0a72a	319	} else
5b74c2c7	320	printk(KERN_ERR "tm6000: no frontend found\n");
3169c9b2 ML	321
	322	dvb->demux.dmx.capabilities = DMX_TS_FILTERING \| DMX_SECTION_FILTERING
	323	\| DMX_MEMORY_BASED_FILTERING;
	324	dvb->demux.priv = dev;
38d75a79 SR	325	dvb->demux.filternum = 8;
38d75a79 SR	326	dvb->demux.feednum = 8;
3169c9b2 ML	327	dvb->demux.start_feed = tm6000_start_feed;
	328	dvb->demux.stop_feed = tm6000_stop_feed;
	329	dvb->demux.write_to_decoder = NULL;
	330	ret = dvb_dmx_init(&dvb->demux);
52e0a72a	331	if (ret < 0) {
45dbf0db	332	printk(KERN_ERR "tm6000: dvb_dmx_init failed (errno = %d)\n", ret);
3169c9b2 ML	333	goto frontend_err;
	334	}
	335
	336	dvb->dmxdev.filternum = dev->dvb->demux.filternum;
	337	dvb->dmxdev.demux = &dev->dvb->demux.dmx;
	338	dvb->dmxdev.capabilities = 0;
	339
	340	ret = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
52e0a72a	341	if (ret < 0) {
45dbf0db	342	printk(KERN_ERR "tm6000: dvb_dmxdev_init failed (errno = %d)\n", ret);
3169c9b2 ML	343	goto dvb_dmx_err;
	344	}
	345
	346	return 0;
	347
	348	dvb_dmx_err:
	349	dvb_dmx_release(&dvb->demux);
	350	frontend_err:
52e0a72a	351	if (dvb->frontend) {
3169c9b2	352	dvb_unregister_frontend(dvb->frontend);
afca99a2	353	dvb_frontend_detach(dvb->frontend);
3169c9b2 ML	354	}
	355	adapter_err:
	356	dvb_unregister_adapter(&dvb->adapter);
	357	err:
	358	return ret;
	359	}
	360
3d1a51db	361	static void unregister_dvb(struct tm6000_core *dev)
3169c9b2 ML	362	{
	363	struct tm6000_dvb *dvb = dev->dvb;
	364
7e11d502	365	if (dvb->bulk_urb) {
3169c9b2 ML	366	struct urb *bulk_urb = dvb->bulk_urb;
	367
	368	kfree(bulk_urb->transfer_buffer);
	369	bulk_urb->transfer_buffer = NULL;
	370	usb_unlink_urb(bulk_urb);
	371	usb_free_urb(bulk_urb);
	372	}
	373
08e60ba0	374	/* mutex_lock(&tm6000_driver.open_close_mutex); */
52e0a72a	375	if (dvb->frontend) {
3169c9b2	376	dvb_unregister_frontend(dvb->frontend);
afca99a2	377	dvb_frontend_detach(dvb->frontend);
3169c9b2 ML	378	}
	379
	380	dvb_dmxdev_release(&dvb->dmxdev);
	381	dvb_dmx_release(&dvb->demux);
	382	dvb_unregister_adapter(&dvb->adapter);
	383	mutex_destroy(&dvb->mutex);
08e60ba0	384	/* mutex_unlock(&tm6000_driver.open_close_mutex); */
3169c9b2	385	}
cee3926f SR	386
	387	static int dvb_init(struct tm6000_core *dev)
	388	{
	389	struct tm6000_dvb *dvb;
	390	int rc;
	391
	392	if (!dev)
	393	return 0;
	394
	395	if (!dev->caps.has_dvb)
	396	return 0;
	397
c81c0060 MC	398	if (dev->udev->speed == USB_SPEED_FULL) {
	399	printk(KERN_INFO "This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)\n");
	400	return 0;
	401	}
	402
cee3926f	403	dvb = kzalloc(sizeof(struct tm6000_dvb), GFP_KERNEL);
7e11d502	404	if (!dvb)
cee3926f	405	return -ENOMEM;
cee3926f SR	406
	407	dev->dvb = dvb;
	408
	409	rc = register_dvb(dev);
	410	if (rc < 0) {
	411	kfree(dvb);
	412	dev->dvb = NULL;
	413	return 0;
	414	}
	415
	416	return 0;
	417	}
	418
	419	static int dvb_fini(struct tm6000_core *dev)
	420	{
	421	if (!dev)
	422	return 0;
	423
	424	if (!dev->caps.has_dvb)
	425	return 0;
	426
	427	if (dev->dvb) {
	428	unregister_dvb(dev);
	429	kfree(dev->dvb);
	430	dev->dvb = NULL;
	431	}
	432
	433	return 0;
	434	}
	435
	436	static struct tm6000_ops dvb_ops = {
39e1256b	437	.type = TM6000_DVB,
cee3926f SR	438	.name = "TM6000 dvb Extension",
	439	.init = dvb_init,
	440	.fini = dvb_fini,
	441	};
	442
	443	static int __init tm6000_dvb_register(void)
	444	{
	445	return tm6000_register_extension(&dvb_ops);
	446	}
	447
	448	static void __exit tm6000_dvb_unregister(void)
	449	{
	450	tm6000_unregister_extension(&dvb_ops);
	451	}
	452
	453	module_init(tm6000_dvb_register);
	454	module_exit(tm6000_dvb_unregister);