[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / em28xx / em28xx-dvb.c

/*
 DVB device driver for em28xx

 (c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>

 (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
	- Fixes for the driver to properly work with HVR-950
	- Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
	- Fixes for the driver to properly work with AMD ATI TV Wonder HD 600

 (c) 2008 Aidan Thornton <makosoft@googlemail.com>

 Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
	(c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
	(c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]

 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.
 */

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

#include "em28xx.h"
#include <media/v4l2-common.h>
#include <media/videobuf-vmalloc.h>
#include <media/tuner.h>
#include "tuner-simple.h"

#include "lgdt330x.h"
#include "zl10353.h"
#include "s5h1409.h"

MODULE_DESCRIPTION("driver for em28xx based DVB cards");
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
MODULE_LICENSE("GPL");

static unsigned int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages [dvb]");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#define dprintk(level, fmt, arg...) do {			\
if (debug >= level) 						\
	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg);	\
} while (0)

#define EM28XX_DVB_NUM_BUFS 5
#define EM28XX_DVB_MAX_PACKETS 64

struct em28xx_dvb {
	struct dvb_frontend        *frontend;

	/* feed count management */
	struct mutex               lock;
	int                        nfeeds;

	/* general boilerplate stuff */
	struct dvb_adapter         adapter;
	struct dvb_demux           demux;
	struct dmxdev              dmxdev;
	struct dmx_frontend        fe_hw;
	struct dmx_frontend        fe_mem;
	struct dvb_net             net;
};


static inline void print_err_status(struct em28xx *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(1, "URB status %d [%s].\n", status, errmsg);
	} else {
		dprintk(1, "URB packet %d, status %d [%s].\n",
			packet, status, errmsg);
	}
}

static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
{
	int i;

	if (!dev)
		return 0;

	if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
		return 0;

	if (urb->status < 0) {
		print_err_status(dev, -1, urb->status);
		if (urb->status == -ENOENT)
			return 0;
	}

	for (i = 0; i < urb->number_of_packets; i++) {
		int status = urb->iso_frame_desc[i].status;

		if (status < 0) {
			print_err_status(dev, i, status);
			if (urb->iso_frame_desc[i].status != -EPROTO)
				continue;
		}

		dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
				 urb->iso_frame_desc[i].offset,
				 urb->iso_frame_desc[i].actual_length);
	}

	return 0;
}

static int start_streaming(struct em28xx_dvb *dvb)
{
	int rc;
	struct em28xx *dev = dvb->adapter.priv;
	int max_dvb_packet_size;

	usb_set_interface(dev->udev, 0, 1);
	rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	if (rc < 0)
		return rc;

	max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);

	return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
				EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
				dvb_isoc_copy);
}

static int stop_streaming(struct em28xx_dvb *dvb)
{
	struct em28xx *dev = dvb->adapter.priv;

	em28xx_uninit_isoc(dev);

	em28xx_set_mode(dev, EM28XX_SUSPEND);

	return 0;
}

static int start_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux  = feed->demux;
	struct em28xx_dvb *dvb = demux->priv;
	int rc, ret;

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

	mutex_lock(&dvb->lock);
	dvb->nfeeds++;
	rc = dvb->nfeeds;

	if (dvb->nfeeds == 1) {
		ret = start_streaming(dvb);
		if (ret < 0)
			rc = ret;
	}

	mutex_unlock(&dvb->lock);
	return rc;
}

static int stop_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux  = feed->demux;
	struct em28xx_dvb *dvb = demux->priv;
	int err = 0;

	mutex_lock(&dvb->lock);
	dvb->nfeeds--;

	if (0 == dvb->nfeeds)
		err = stop_streaming(dvb);

	mutex_unlock(&dvb->lock);
	return err;
}


/* ------------------------------------------------------------------ */
static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
{
	struct em28xx *dev = fe->dvb->priv;

	if (acquire)
		return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	else
		return em28xx_set_mode(dev, EM28XX_SUSPEND);
}

/* ------------------------------------------------------------------ */

static struct lgdt330x_config em2880_lgdt3303_dev = {
	.demod_address = 0x0e,
	.demod_chip = LGDT3303,
};

static struct zl10353_config em28xx_zl10353_with_xc3028 = {
	.demod_address = (0x1e >> 1),
	.no_tuner = 1,
	.parallel_ts = 1,
	.if2 = 45600,
};

static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
	.demod_address = 0x32 >> 1,
	.output_mode   = S5H1409_PARALLEL_OUTPUT,
	.gpio          = S5H1409_GPIO_OFF,
	.inversion     = S5H1409_INVERSION_OFF,
	.status_mode   = S5H1409_DEMODLOCKING,
	.mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
};

#ifdef EM28XX_DRX397XD_SUPPORT
/* [TODO] djh - not sure yet what the device config needs to contain */
static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
	.demod_address = (0xe0 >> 1),
};
#endif

/* ------------------------------------------------------------------ */

static int attach_xc3028(u8 addr, struct em28xx *dev)
{
	struct dvb_frontend *fe;
	struct xc2028_config cfg;

	memset(&cfg, 0, sizeof(cfg));
	cfg.i2c_adap  = &dev->i2c_adap;
	cfg.i2c_addr  = addr;

	if (!dev->dvb->frontend) {
		printk(KERN_ERR "%s/2: dvb frontend not attached. "
				"Can't attach xc3028\n",
		       dev->name);
		return -EINVAL;
	}

	fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
	if (!fe) {
		printk(KERN_ERR "%s/2: xc3028 attach failed\n",
		       dev->name);
		dvb_frontend_detach(dev->dvb->frontend);
		dev->dvb->frontend = NULL;
		return -EINVAL;
	}

	printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name);

	return 0;
}

/* ------------------------------------------------------------------ */

static int register_dvb(struct em28xx_dvb *dvb,
		 struct module *module,
		 struct em28xx *dev,
		 struct device *device)
{
	int result;

	mutex_init(&dvb->lock);

	/* register adapter */
	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
				      adapter_nr);
	if (result < 0) {
		printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
		       dev->name, result);
		goto fail_adapter;
	}

	/* Ensure all frontends negotiate bus access */
	dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;

	dvb->adapter.priv = dev;

	/* register frontend */
	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	if (result < 0) {
		printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
		       dev->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       = dvb;
	dvb->demux.filternum  = 256;
	dvb->demux.feednum    = 256;
	dvb->demux.start_feed = start_feed;
	dvb->demux.stop_feed  = stop_feed;

	result = dvb_dmx_init(&dvb->demux);
	if (result < 0) {
		printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
		       dev->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_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
		       dev->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_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
		       dev->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_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
		       dev->name, result);
		goto fail_fe_mem;
	}

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

static void unregister_dvb(struct em28xx_dvb *dvb)
{
	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);
}


static int dvb_init(struct em28xx *dev)
{
	int result = 0;
	struct em28xx_dvb *dvb;

	if (!dev->board.has_dvb) {
		/* This device does not support the extension */
		return 0;
	}

	dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);

	if (dvb == NULL) {
		printk(KERN_INFO "em28xx_dvb: memory allocation failed\n");
		return -ENOMEM;
	}
	dev->dvb = dvb;

	em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	/* init frontend */
	switch (dev->model) {
	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
		dvb->frontend = dvb_attach(lgdt330x_attach,
					   &em2880_lgdt3303_dev,
					   &dev->i2c_adap);
		if (attach_xc3028(0x61, dev) < 0) {
			result = -EINVAL;
			goto out_free;
		}
		break;
	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
	case EM2880_BOARD_TERRATEC_HYBRID_XS:
	case EM2880_BOARD_KWORLD_DVB_310U:
	case EM2880_BOARD_EMPIRE_DUAL_TV:
		dvb->frontend = dvb_attach(zl10353_attach,
					   &em28xx_zl10353_with_xc3028,
					   &dev->i2c_adap);
		if (attach_xc3028(0x61, dev) < 0) {
			result = -EINVAL;
			goto out_free;
		}
		break;
	case EM2883_BOARD_KWORLD_HYBRID_330U:
	case EM2882_BOARD_EVGA_INDTUBE:
		dvb->frontend = dvb_attach(s5h1409_attach,
					   &em28xx_s5h1409_with_xc3028,
					   &dev->i2c_adap);
		if (attach_xc3028(0x61, dev) < 0) {
			result = -EINVAL;
			goto out_free;
		}
		break;
	case EM2882_BOARD_KWORLD_ATSC_315U:
		dvb->frontend = dvb_attach(lgdt330x_attach,
					   &em2880_lgdt3303_dev,
					   &dev->i2c_adap);
		if (dvb->frontend != NULL) {
			if (!dvb_attach(simple_tuner_attach, dvb->frontend,
				&dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
				result = -EINVAL;
				goto out_free;
			}
		}
		break;
	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
#ifdef EM28XX_DRX397XD_SUPPORT
		/* We don't have the config structure properly populated, so
		   this is commented out for now */
		dvb->frontend = dvb_attach(drx397xD_attach,
					   &em28xx_drx397xD_with_xc3028,
					   &dev->i2c_adap);
		if (attach_xc3028(0x61, dev) < 0) {
			result = -EINVAL;
			goto out_free;
		}
		break;
#endif
	default:
		printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
				" isn't supported yet\n",
		       dev->name);
		break;
	}
	if (NULL == dvb->frontend) {
		printk(KERN_ERR
		       "%s/2: frontend initialization failed\n",
		       dev->name);
		result = -EINVAL;
		goto out_free;
	}
	/* define general-purpose callback pointer */
	dvb->frontend->callback = em28xx_tuner_callback;

	/* register everything */
	result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);

	if (result < 0)
		goto out_free;

	em28xx_set_mode(dev, EM28XX_SUSPEND);
	printk(KERN_INFO "Successfully loaded em28xx-dvb\n");
	return 0;

out_free:
	em28xx_set_mode(dev, EM28XX_SUSPEND);
	kfree(dvb);
	dev->dvb = NULL;
	return result;
}

static int dvb_fini(struct em28xx *dev)
{
	if (!dev->board.has_dvb) {
		/* This device does not support the extension */
		return 0;
	}

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

	return 0;
}

static struct em28xx_ops dvb_ops = {
	.id   = EM28XX_DVB,
	.name = "Em28xx dvb Extension",
	.init = dvb_init,
	.fini = dvb_fini,
};

static int __init em28xx_dvb_register(void)
{
	return em28xx_register_extension(&dvb_ops);
}

static void __exit em28xx_dvb_unregister(void)
{
	em28xx_unregister_extension(&dvb_ops);
}

module_init(em28xx_dvb_register);
module_exit(em28xx_dvb_unregister);
Commit	Line	Data
3aefb79a MCC	1	/*
	2	DVB device driver for em28xx
	3
	4	(c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
	5
bdfbf952 DH	6	(c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
bdfbf952 DH	7	- Fixes for the driver to properly work with HVR-950
4fd305b2	8	- Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
e14b3658	9	- Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
bdfbf952	10
3421b778 AT	11	(c) 2008 Aidan Thornton <makosoft@googlemail.com>
	12
	13	Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
3aefb79a MCC	14	(c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
	15	(c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
	16
	17	This program is free software; you can redistribute it and/or modify
	18	it under the terms of the GNU General Public License as published by
	19	the Free Software Foundation; either version 2 of the License.
	20	*/
	21
	22	#include <linux/kernel.h>
	23	#include <linux/usb.h>
	24
	25	#include "em28xx.h"
	26	#include <media/v4l2-common.h>
	27	#include <media/videobuf-vmalloc.h>
d7de5d8f FM	28	#include <media/tuner.h>
d7de5d8f FM	29	#include "tuner-simple.h"
3aefb79a MCC	30
3aefb79a MCC	31	#include "lgdt330x.h"
7e6388a1	32	#include "zl10353.h"
6e7b9ea0	33	#include "s5h1409.h"
3aefb79a MCC	34
	35	MODULE_DESCRIPTION("driver for em28xx based DVB cards");
	36	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
	37	MODULE_LICENSE("GPL");
	38
	39	static unsigned int debug;
	40	module_param(debug, int, 0644);
	41	MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
	42
	43	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
	44
	45	#define dprintk(level, fmt, arg...) do { \
	46	if (debug >= level) \
3421b778	47	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
3aefb79a MCC	48	} while (0)
3aefb79a MCC	49
3421b778	50	#define EM28XX_DVB_NUM_BUFS 5
3421b778 AT	51	#define EM28XX_DVB_MAX_PACKETS 64
	52
	53	struct em28xx_dvb {
	54	struct dvb_frontend *frontend;
	55
	56	/* feed count management */
	57	struct mutex lock;
	58	int nfeeds;
	59
	60	/* general boilerplate stuff */
	61	struct dvb_adapter adapter;
	62	struct dvb_demux demux;
	63	struct dmxdev dmxdev;
	64	struct dmx_frontend fe_hw;
	65	struct dmx_frontend fe_mem;
	66	struct dvb_net net;
	67	};
	68
	69
	70	static inline void print_err_status(struct em28xx *dev,
	71	int packet, int status)
3aefb79a	72	{
3421b778	73	char *errmsg = "Unknown";
3aefb79a	74
3421b778 AT	75	switch (status) {
	76	case -ENOENT:
	77	errmsg = "unlinked synchronuously";
	78	break;
	79	case -ECONNRESET:
	80	errmsg = "unlinked asynchronuously";
	81	break;
	82	case -ENOSR:
	83	errmsg = "Buffer error (overrun)";
	84	break;
	85	case -EPIPE:
	86	errmsg = "Stalled (device not responding)";
	87	break;
	88	case -EOVERFLOW:
	89	errmsg = "Babble (bad cable?)";
	90	break;
	91	case -EPROTO:
	92	errmsg = "Bit-stuff error (bad cable?)";
	93	break;
	94	case -EILSEQ:
	95	errmsg = "CRC/Timeout (could be anything)";
	96	break;
	97	case -ETIME:
	98	errmsg = "Device does not respond";
	99	break;
	100	}
	101	if (packet < 0) {
	102	dprintk(1, "URB status %d [%s].\n", status, errmsg);
	103	} else {
6ea54d93 DSL	104	dprintk(1, "URB packet %d, status %d [%s].\n",
6ea54d93 DSL	105	packet, status, errmsg);
3421b778 AT	106	}
3421b778 AT	107	}
3aefb79a	108
3421b778 AT	109	static inline int dvb_isoc_copy(struct em28xx dev, struct urb urb)
	110	{
	111	int i;
3aefb79a	112
3421b778 AT	113	if (!dev)
3421b778 AT	114	return 0;
3aefb79a	115
3421b778 AT	116	if ((dev->state & DEV_DISCONNECTED) \|\| (dev->state & DEV_MISCONFIGURED))
	117	return 0;
	118
	119	if (urb->status < 0) {
	120	print_err_status(dev, -1, urb->status);
	121	if (urb->status == -ENOENT)
	122	return 0;
	123	}
	124
	125	for (i = 0; i < urb->number_of_packets; i++) {
	126	int status = urb->iso_frame_desc[i].status;
	127
	128	if (status < 0) {
	129	print_err_status(dev, i, status);
	130	if (urb->iso_frame_desc[i].status != -EPROTO)
	131	continue;
	132	}
	133
	134	dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
	135	urb->iso_frame_desc[i].offset,
	136	urb->iso_frame_desc[i].actual_length);
	137	}
	138
	139	return 0;
	140	}
	141
6ea54d93 DSL	142	static int start_streaming(struct em28xx_dvb *dvb)
6ea54d93 DSL	143	{
c67ec53f	144	int rc;
3421b778	145	struct em28xx *dev = dvb->adapter.priv;
d18e2fda	146	int max_dvb_packet_size;
3421b778 AT	147
3421b778 AT	148	usb_set_interface(dev->udev, 0, 1);
c67ec53f MCC	149	rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	150	if (rc < 0)
	151	return rc;
3421b778	152
d18e2fda DH	153	max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
d18e2fda DH	154
3421b778	155	return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
d18e2fda	156	EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
c67ec53f	157	dvb_isoc_copy);
3421b778 AT	158	}
3421b778 AT	159
6ea54d93 DSL	160	static int stop_streaming(struct em28xx_dvb *dvb)
6ea54d93 DSL	161	{
3421b778 AT	162	struct em28xx *dev = dvb->adapter.priv;
	163
	164	em28xx_uninit_isoc(dev);
c67ec53f	165
2fe3e2ee	166	em28xx_set_mode(dev, EM28XX_SUSPEND);
c67ec53f	167
3aefb79a MCC	168	return 0;
	169	}
	170
3421b778 AT	171	static int start_feed(struct dvb_demux_feed *feed)
	172	{
	173	struct dvb_demux *demux = feed->demux;
	174	struct em28xx_dvb *dvb = demux->priv;
	175	int rc, ret;
	176
	177	if (!demux->dmx.frontend)
	178	return -EINVAL;
	179
	180	mutex_lock(&dvb->lock);
	181	dvb->nfeeds++;
	182	rc = dvb->nfeeds;
	183
	184	if (dvb->nfeeds == 1) {
	185	ret = start_streaming(dvb);
6ea54d93 DSL	186	if (ret < 0)
6ea54d93 DSL	187	rc = ret;
3421b778 AT	188	}
	189
	190	mutex_unlock(&dvb->lock);
	191	return rc;
	192	}
	193
	194	static int stop_feed(struct dvb_demux_feed *feed)
	195	{
	196	struct dvb_demux *demux = feed->demux;
	197	struct em28xx_dvb *dvb = demux->priv;
	198	int err = 0;
	199
	200	mutex_lock(&dvb->lock);
	201	dvb->nfeeds--;
6ea54d93 DSL	202
6ea54d93 DSL	203	if (0 == dvb->nfeeds)
3421b778	204	err = stop_streaming(dvb);
6ea54d93	205
3421b778 AT	206	mutex_unlock(&dvb->lock);
	207	return err;
	208	}
	209
	210
e3569abc MCC	211
	212	/* ------------------------------------------------------------------ */
	213	static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
	214	{
	215	struct em28xx *dev = fe->dvb->priv;
	216
	217	if (acquire)
	218	return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	219	else
2fe3e2ee	220	return em28xx_set_mode(dev, EM28XX_SUSPEND);
e3569abc MCC	221	}
e3569abc MCC	222
3aefb79a MCC	223	/* ------------------------------------------------------------------ */
3aefb79a MCC	224
227ad4ab MCC	225	static struct lgdt330x_config em2880_lgdt3303_dev = {
	226	.demod_address = 0x0e,
	227	.demod_chip = LGDT3303,
	228	};
3aefb79a	229
7e6388a1 AT	230	static struct zl10353_config em28xx_zl10353_with_xc3028 = {
	231	.demod_address = (0x1e >> 1),
	232	.no_tuner = 1,
	233	.parallel_ts = 1,
	234	.if2 = 45600,
	235	};
	236
6e7b9ea0 RK	237	static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
	238	.demod_address = 0x32 >> 1,
	239	.output_mode = S5H1409_PARALLEL_OUTPUT,
	240	.gpio = S5H1409_GPIO_OFF,
	241	.inversion = S5H1409_INVERSION_OFF,
	242	.status_mode = S5H1409_DEMODLOCKING,
	243	.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
	244	};
	245
17d9d558 DH	246	#ifdef EM28XX_DRX397XD_SUPPORT
	247	/* [TODO] djh - not sure yet what the device config needs to contain */
	248	static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
	249	.demod_address = (0xe0 >> 1),
	250	};
	251	#endif
	252
3aefb79a MCC	253	/* ------------------------------------------------------------------ */
	254
	255	static int attach_xc3028(u8 addr, struct em28xx *dev)
	256	{
	257	struct dvb_frontend *fe;
3ca9c093 MCC	258	struct xc2028_config cfg;
3ca9c093 MCC	259
6ea54d93	260	memset(&cfg, 0, sizeof(cfg));
3ca9c093 MCC	261	cfg.i2c_adap = &dev->i2c_adap;
3ca9c093 MCC	262	cfg.i2c_addr = addr;
3ca9c093	263
3421b778	264	if (!dev->dvb->frontend) {
3aefb79a MCC	265	printk(KERN_ERR "%s/2: dvb frontend not attached. "
	266	"Can't attach xc3028\n",
	267	dev->name);
	268	return -EINVAL;
	269	}
	270
3421b778	271	fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
3aefb79a MCC	272	if (!fe) {
	273	printk(KERN_ERR "%s/2: xc3028 attach failed\n",
	274	dev->name);
3421b778	275	dvb_frontend_detach(dev->dvb->frontend);
3421b778	276	dev->dvb->frontend = NULL;
3aefb79a MCC	277	return -EINVAL;
	278	}
	279
	280	printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name);
	281
	282	return 0;
	283	}
	284
3421b778 AT	285	/* ------------------------------------------------------------------ */
3421b778 AT	286
d45b9b8a	287	static int register_dvb(struct em28xx_dvb *dvb,
3421b778 AT	288	struct module *module,
	289	struct em28xx *dev,
	290	struct device *device)
3aefb79a	291	{
3421b778	292	int result;
3aefb79a	293
3421b778	294	mutex_init(&dvb->lock);
3aefb79a	295
3421b778 AT	296	/* register adapter */
	297	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
	298	adapter_nr);
	299	if (result < 0) {
	300	printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
	301	dev->name, result);
	302	goto fail_adapter;
	303	}
e3569abc MCC	304
	305	/* Ensure all frontends negotiate bus access */
	306	dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
	307
3421b778 AT	308	dvb->adapter.priv = dev;
	309
	310	/* register frontend */
	311	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	312	if (result < 0) {
	313	printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
	314	dev->name, result);
	315	goto fail_frontend;
	316	}
	317
	318	/* register demux stuff */
	319	dvb->demux.dmx.capabilities =
	320	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	321	DMX_MEMORY_BASED_FILTERING;
	322	dvb->demux.priv = dvb;
	323	dvb->demux.filternum = 256;
	324	dvb->demux.feednum = 256;
	325	dvb->demux.start_feed = start_feed;
	326	dvb->demux.stop_feed = stop_feed;
e3569abc	327
3421b778 AT	328	result = dvb_dmx_init(&dvb->demux);
	329	if (result < 0) {
	330	printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
	331	dev->name, result);
	332	goto fail_dmx;
	333	}
	334
	335	dvb->dmxdev.filternum = 256;
	336	dvb->dmxdev.demux = &dvb->demux.dmx;
	337	dvb->dmxdev.capabilities = 0;
	338	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	339	if (result < 0) {
	340	printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
	341	dev->name, result);
	342	goto fail_dmxdev;
	343	}
52284c3e	344
3421b778 AT	345	dvb->fe_hw.source = DMX_FRONTEND_0;
	346	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	347	if (result < 0) {
	348	printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
	349	dev->name, result);
	350	goto fail_fe_hw;
	351	}
	352
	353	dvb->fe_mem.source = DMX_MEMORY_FE;
	354	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	355	if (result < 0) {
	356	printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
	357	dev->name, result);
	358	goto fail_fe_mem;
	359	}
	360
	361	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	362	if (result < 0) {
	363	printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
	364	dev->name, result);
	365	goto fail_fe_conn;
	366	}
	367
	368	/* register network adapter */
	369	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
	370	return 0;
	371
	372	fail_fe_conn:
	373	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	374	fail_fe_mem:
	375	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	376	fail_fe_hw:
	377	dvb_dmxdev_release(&dvb->dmxdev);
	378	fail_dmxdev:
	379	dvb_dmx_release(&dvb->demux);
	380	fail_dmx:
	381	dvb_unregister_frontend(dvb->frontend);
	382	fail_frontend:
	383	dvb_frontend_detach(dvb->frontend);
	384	dvb_unregister_adapter(&dvb->adapter);
	385	fail_adapter:
	386	return result;
	387	}
	388
	389	static void unregister_dvb(struct em28xx_dvb *dvb)
	390	{
	391	dvb_net_release(&dvb->net);
	392	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	393	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	394	dvb_dmxdev_release(&dvb->dmxdev);
	395	dvb_dmx_release(&dvb->demux);
	396	dvb_unregister_frontend(dvb->frontend);
	397	dvb_frontend_detach(dvb->frontend);
	398	dvb_unregister_adapter(&dvb->adapter);
	399	}
	400
	401
	402	static int dvb_init(struct em28xx *dev)
	403	{
	404	int result = 0;
	405	struct em28xx_dvb *dvb;
	406
505b6d0b	407	if (!dev->board.has_dvb) {
df619181 DH	408	/* This device does not support the extension */
	409	return 0;
	410	}
	411
3421b778	412	dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
6ea54d93 DSL	413
	414	if (dvb == NULL) {
	415	printk(KERN_INFO "em28xx_dvb: memory allocation failed\n");
3421b778 AT	416	return -ENOMEM;
	417	}
	418	dev->dvb = dvb;
3aefb79a	419
c67ec53f	420	em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
3aefb79a MCC	421	/* init frontend */
3aefb79a MCC	422	switch (dev->model) {
f89bc329	423	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
10ac6603	424	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
4fd305b2	425	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
e14b3658	426	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
3421b778 AT	427	dvb->frontend = dvb_attach(lgdt330x_attach,
	428	&em2880_lgdt3303_dev,
	429	&dev->i2c_adap);
	430	if (attach_xc3028(0x61, dev) < 0) {
	431	result = -EINVAL;
	432	goto out_free;
	433	}
227ad4ab	434	break;
7e6388a1	435	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
46510b56 TM	436	case EM2880_BOARD_TERRATEC_HYBRID_XS:
46510b56 TM	437	case EM2880_BOARD_KWORLD_DVB_310U:
e5db5d44	438	case EM2880_BOARD_EMPIRE_DUAL_TV:
3421b778 AT	439	dvb->frontend = dvb_attach(zl10353_attach,
	440	&em28xx_zl10353_with_xc3028,
	441	&dev->i2c_adap);
	442	if (attach_xc3028(0x61, dev) < 0) {
	443	result = -EINVAL;
	444	goto out_free;
	445	}
7e6388a1	446	break;
6e7b9ea0	447	case EM2883_BOARD_KWORLD_HYBRID_330U:
19859229	448	case EM2882_BOARD_EVGA_INDTUBE:
6e7b9ea0 RK	449	dvb->frontend = dvb_attach(s5h1409_attach,
	450	&em28xx_s5h1409_with_xc3028,
	451	&dev->i2c_adap);
	452	if (attach_xc3028(0x61, dev) < 0) {
	453	result = -EINVAL;
	454	goto out_free;
	455	}
	456	break;
d7de5d8f FM	457	case EM2882_BOARD_KWORLD_ATSC_315U:
	458	dvb->frontend = dvb_attach(lgdt330x_attach,
	459	&em2880_lgdt3303_dev,
	460	&dev->i2c_adap);
	461	if (dvb->frontend != NULL) {
	462	if (!dvb_attach(simple_tuner_attach, dvb->frontend,
	463	&dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
	464	result = -EINVAL;
	465	goto out_free;
	466	}
	467	}
	468	break;
17d9d558 DH	469	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
	470	#ifdef EM28XX_DRX397XD_SUPPORT
	471	/* We don't have the config structure properly populated, so
	472	this is commented out for now */
	473	dvb->frontend = dvb_attach(drx397xD_attach,
	474	&em28xx_drx397xD_with_xc3028,
	475	&dev->i2c_adap);
	476	if (attach_xc3028(0x61, dev) < 0) {
	477	result = -EINVAL;
	478	goto out_free;
	479	}
	480	break;
	481	#endif
3aefb79a MCC	482	default:
	483	printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
	484	" isn't supported yet\n",
	485	dev->name);
	486	break;
	487	}
3421b778	488	if (NULL == dvb->frontend) {
3aefb79a MCC	489	printk(KERN_ERR
	490	"%s/2: frontend initialization failed\n",
	491	dev->name);
3421b778 AT	492	result = -EINVAL;
3421b778 AT	493	goto out_free;
3aefb79a	494	}
d7cba043 MK	495	/* define general-purpose callback pointer */
d7cba043 MK	496	dvb->frontend->callback = em28xx_tuner_callback;
3aefb79a MCC	497
3aefb79a MCC	498	/* register everything */
3421b778 AT	499	result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
3421b778 AT	500
6ea54d93	501	if (result < 0)
3421b778	502	goto out_free;
3421b778	503
2fe3e2ee	504	em28xx_set_mode(dev, EM28XX_SUSPEND);
102a0b08	505	printk(KERN_INFO "Successfully loaded em28xx-dvb\n");
3421b778 AT	506	return 0;
	507
	508	out_free:
2fe3e2ee	509	em28xx_set_mode(dev, EM28XX_SUSPEND);
3421b778 AT	510	kfree(dvb);
	511	dev->dvb = NULL;
	512	return result;
3aefb79a MCC	513	}
	514
	515	static int dvb_fini(struct em28xx *dev)
	516	{
505b6d0b	517	if (!dev->board.has_dvb) {
df619181 DH	518	/* This device does not support the extension */
	519	return 0;
	520	}
	521
3421b778 AT	522	if (dev->dvb) {
	523	unregister_dvb(dev->dvb);
	524	dev->dvb = NULL;
	525	}
3aefb79a MCC	526
	527	return 0;
	528	}
	529
	530	static struct em28xx_ops dvb_ops = {
	531	.id = EM28XX_DVB,
	532	.name = "Em28xx dvb Extension",
	533	.init = dvb_init,
	534	.fini = dvb_fini,
	535	};
	536
	537	static int __init em28xx_dvb_register(void)
	538	{
	539	return em28xx_register_extension(&dvb_ops);
	540	}
	541
	542	static void __exit em28xx_dvb_unregister(void)
	543	{
	544	em28xx_unregister_extension(&dvb_ops);
	545	}
	546
	547	module_init(em28xx_dvb_register);
	548	module_exit(em28xx_dvb_unregister);