[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/slab.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 "lgdt3305.h"
#include "zl10353.h"
#include "s5h1409.h"
#include "mt352.h"
#include "mt352_priv.h" /* FIXME */
#include "tda1002x.h"
#include "tda18271.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 lgdt3305_config em2870_lgdt3304_dev = {
	.i2c_addr           = 0x0e,
	.demod_chip         = LGDT3304,
	.spectral_inversion = 1,
	.deny_i2c_rptr      = 1,
	.mpeg_mode          = LGDT3305_MPEG_PARALLEL,
	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
	.vsb_if_khz         = 3250,
	.qam_if_khz         = 4000,
};

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
};

static struct tda18271_std_map kworld_a340_std_map = {
	.atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
		      .if_lvl = 1, .rfagc_top = 0x37, },
	.qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
		      .if_lvl = 1, .rfagc_top = 0x37, },
};

static struct tda18271_config kworld_a340_config = {
	.std_map           = &kworld_a340_std_map,
};

static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
	.demod_address = (0x1e >> 1),
	.no_tuner = 1,
	.disable_i2c_gate_ctrl = 1,
	.parallel_ts = 1,
	.if2 = 45600,
};

#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 mt352_terratec_xs_init(struct dvb_frontend *fe)
{
	/* Values extracted from a USB trace of the Terratec Windows driver */
	static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
	static u8 reset[]          = { RESET,      0x80 };
	static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
	static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
	static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
	static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
	static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
	static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
	static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
	static u8 tuner_go[]       = { TUNER_GO, 0x01};

	mt352_write(fe, clock_config,   sizeof(clock_config));
	udelay(200);
	mt352_write(fe, reset,          sizeof(reset));
	mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
	mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
	mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
	mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
	mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
	mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
	mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
	mt352_write(fe, tuner_go,       sizeof(tuner_go));
	return 0;
}

static struct mt352_config terratec_xs_mt352_cfg = {
	.demod_address = (0x1e >> 1),
	.no_tuner = 1,
	.if2 = 45600,
	.demod_init = mt352_terratec_xs_init,
};

static struct tda10023_config em28xx_tda10023_config = {
	.demod_address = 0x0c,
	.invert = 1,
};

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

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) {
		em28xx_errdev("/2: dvb frontend not attached. "
				"Can't attach xc3028\n");
		return -EINVAL;
	}

	fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
	if (!fe) {
		em28xx_errdev("/2: xc3028 attach failed\n");
		dvb_frontend_detach(dev->dvb->frontend);
		dev->dvb->frontend = NULL;
		return -EINVAL;
	}

	em28xx_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) {
		em28xx_info("em28xx_dvb: memory allocation failed\n");
		return -ENOMEM;
	}
	dev->dvb = dvb;

	mutex_lock(&dev->lock);
	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_KWORLD_DVB_310U:
		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 EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
	case EM2882_BOARD_TERRATEC_HYBRID_XS:
	case EM2880_BOARD_EMPIRE_DUAL_TV:
		dvb->frontend = dvb_attach(zl10353_attach,
					   &em28xx_zl10353_xc3028_no_i2c_gate,
					   &dev->i2c_adap);
		if (attach_xc3028(0x61, dev) < 0) {
			result = -EINVAL;
			goto out_free;
		}
		break;
	case EM2880_BOARD_TERRATEC_HYBRID_XS:
	case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
	case EM2881_BOARD_PINNACLE_HYBRID_PRO:
	case EM2882_BOARD_DIKOM_DK300:
	case EM2882_BOARD_KWORLD_VS_DVBT:
		dvb->frontend = dvb_attach(zl10353_attach,
					   &em28xx_zl10353_xc3028_no_i2c_gate,
					   &dev->i2c_adap);
		if (dvb->frontend == NULL) {
			/* This board could have either a zl10353 or a mt352.
			   If the chip id isn't for zl10353, try mt352 */
			dvb->frontend = dvb_attach(mt352_attach,
						   &terratec_xs_mt352_cfg,
						   &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
	case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
		/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
		dvb->frontend = dvb_attach(tda10023_attach,
			&em28xx_tda10023_config,
			&dev->i2c_adap, 0x48);
		if (dvb->frontend) {
			if (!dvb_attach(simple_tuner_attach, dvb->frontend,
				&dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
				result = -EINVAL;
				goto out_free;
			}
		}
		break;
	case EM2870_BOARD_KWORLD_A340:
		dvb->frontend = dvb_attach(lgdt3305_attach,
					   &em2870_lgdt3304_dev,
					   &dev->i2c_adap);
		if (dvb->frontend != NULL)
			dvb_attach(tda18271_attach, dvb->frontend, 0x60,
				   &dev->i2c_adap, &kworld_a340_config);
		break;
	default:
		em28xx_errdev("/2: The frontend of your DVB/ATSC card"
				" isn't supported yet\n");
		break;
	}
	if (NULL == dvb->frontend) {
		em28xx_errdev("/2: frontend initialization failed\n");
		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_info("Successfully loaded em28xx-dvb\n");
ret:
	em28xx_set_mode(dev, EM28XX_SUSPEND);
	mutex_unlock(&dev->lock);
	return result;

out_free:
	kfree(dvb);
	dev->dvb = NULL;
	goto ret;
}

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);
		kfree(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>
5a0e3ad6	23	#include <linux/slab.h>
3aefb79a MCC	24	#include <linux/usb.h>
	25
	26	#include "em28xx.h"
	27	#include <media/v4l2-common.h>
	28	#include <media/videobuf-vmalloc.h>
d7de5d8f FM	29	#include <media/tuner.h>
d7de5d8f FM	30	#include "tuner-simple.h"
3aefb79a MCC	31
3aefb79a MCC	32	#include "lgdt330x.h"
7e48b30a	33	#include "lgdt3305.h"
7e6388a1	34	#include "zl10353.h"
6e7b9ea0	35	#include "s5h1409.h"
4fb202a8 DH	36	#include "mt352.h"
4fb202a8 DH	37	#include "mt352_priv.h" /* FIXME */
285eb1a4	38	#include "tda1002x.h"
7e48b30a	39	#include "tda18271.h"
3aefb79a MCC	40
	41	MODULE_DESCRIPTION("driver for em28xx based DVB cards");
	42	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
	43	MODULE_LICENSE("GPL");
	44
	45	static unsigned int debug;
	46	module_param(debug, int, 0644);
	47	MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
	48
	49	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
	50
	51	#define dprintk(level, fmt, arg...) do { \
	52	if (debug >= level) \
3421b778	53	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
3aefb79a MCC	54	} while (0)
3aefb79a MCC	55
3421b778	56	#define EM28XX_DVB_NUM_BUFS 5
3421b778 AT	57	#define EM28XX_DVB_MAX_PACKETS 64
	58
	59	struct em28xx_dvb {
	60	struct dvb_frontend *frontend;
	61
	62	/* feed count management */
	63	struct mutex lock;
	64	int nfeeds;
	65
	66	/* general boilerplate stuff */
	67	struct dvb_adapter adapter;
	68	struct dvb_demux demux;
	69	struct dmxdev dmxdev;
	70	struct dmx_frontend fe_hw;
	71	struct dmx_frontend fe_mem;
	72	struct dvb_net net;
	73	};
	74
	75
	76	static inline void print_err_status(struct em28xx *dev,
	77	int packet, int status)
3aefb79a	78	{
3421b778	79	char *errmsg = "Unknown";
3aefb79a	80
3421b778 AT	81	switch (status) {
	82	case -ENOENT:
	83	errmsg = "unlinked synchronuously";
	84	break;
	85	case -ECONNRESET:
	86	errmsg = "unlinked asynchronuously";
	87	break;
	88	case -ENOSR:
	89	errmsg = "Buffer error (overrun)";
	90	break;
	91	case -EPIPE:
	92	errmsg = "Stalled (device not responding)";
	93	break;
	94	case -EOVERFLOW:
	95	errmsg = "Babble (bad cable?)";
	96	break;
	97	case -EPROTO:
	98	errmsg = "Bit-stuff error (bad cable?)";
	99	break;
	100	case -EILSEQ:
	101	errmsg = "CRC/Timeout (could be anything)";
	102	break;
	103	case -ETIME:
	104	errmsg = "Device does not respond";
	105	break;
	106	}
	107	if (packet < 0) {
	108	dprintk(1, "URB status %d [%s].\n", status, errmsg);
	109	} else {
6ea54d93 DSL	110	dprintk(1, "URB packet %d, status %d [%s].\n",
6ea54d93 DSL	111	packet, status, errmsg);
3421b778 AT	112	}
3421b778 AT	113	}
3aefb79a	114
3421b778 AT	115	static inline int dvb_isoc_copy(struct em28xx dev, struct urb urb)
	116	{
	117	int i;
3aefb79a	118
3421b778 AT	119	if (!dev)
3421b778 AT	120	return 0;
3aefb79a	121
3421b778 AT	122	if ((dev->state & DEV_DISCONNECTED) \|\| (dev->state & DEV_MISCONFIGURED))
	123	return 0;
	124
	125	if (urb->status < 0) {
	126	print_err_status(dev, -1, urb->status);
	127	if (urb->status == -ENOENT)
	128	return 0;
	129	}
	130
	131	for (i = 0; i < urb->number_of_packets; i++) {
	132	int status = urb->iso_frame_desc[i].status;
	133
	134	if (status < 0) {
	135	print_err_status(dev, i, status);
	136	if (urb->iso_frame_desc[i].status != -EPROTO)
	137	continue;
	138	}
	139
	140	dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
	141	urb->iso_frame_desc[i].offset,
	142	urb->iso_frame_desc[i].actual_length);
	143	}
	144
	145	return 0;
	146	}
	147
6ea54d93 DSL	148	static int start_streaming(struct em28xx_dvb *dvb)
6ea54d93 DSL	149	{
c67ec53f	150	int rc;
3421b778	151	struct em28xx *dev = dvb->adapter.priv;
d18e2fda	152	int max_dvb_packet_size;
3421b778 AT	153
3421b778 AT	154	usb_set_interface(dev->udev, 0, 1);
c67ec53f MCC	155	rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	156	if (rc < 0)
	157	return rc;
3421b778	158
d18e2fda DH	159	max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
d18e2fda DH	160
3421b778	161	return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
d18e2fda	162	EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
c67ec53f	163	dvb_isoc_copy);
3421b778 AT	164	}
3421b778 AT	165
6ea54d93 DSL	166	static int stop_streaming(struct em28xx_dvb *dvb)
6ea54d93 DSL	167	{
3421b778 AT	168	struct em28xx *dev = dvb->adapter.priv;
	169
	170	em28xx_uninit_isoc(dev);
c67ec53f	171
2fe3e2ee	172	em28xx_set_mode(dev, EM28XX_SUSPEND);
c67ec53f	173
3aefb79a MCC	174	return 0;
	175	}
	176
3421b778 AT	177	static int start_feed(struct dvb_demux_feed *feed)
	178	{
	179	struct dvb_demux *demux = feed->demux;
	180	struct em28xx_dvb *dvb = demux->priv;
	181	int rc, ret;
	182
	183	if (!demux->dmx.frontend)
	184	return -EINVAL;
	185
	186	mutex_lock(&dvb->lock);
	187	dvb->nfeeds++;
	188	rc = dvb->nfeeds;
	189
	190	if (dvb->nfeeds == 1) {
	191	ret = start_streaming(dvb);
6ea54d93 DSL	192	if (ret < 0)
6ea54d93 DSL	193	rc = ret;
3421b778 AT	194	}
	195
	196	mutex_unlock(&dvb->lock);
	197	return rc;
	198	}
	199
	200	static int stop_feed(struct dvb_demux_feed *feed)
	201	{
	202	struct dvb_demux *demux = feed->demux;
	203	struct em28xx_dvb *dvb = demux->priv;
	204	int err = 0;
	205
	206	mutex_lock(&dvb->lock);
	207	dvb->nfeeds--;
6ea54d93 DSL	208
6ea54d93 DSL	209	if (0 == dvb->nfeeds)
3421b778	210	err = stop_streaming(dvb);
6ea54d93	211
3421b778 AT	212	mutex_unlock(&dvb->lock);
	213	return err;
	214	}
	215
	216
e3569abc MCC	217
	218	/* ------------------------------------------------------------------ */
	219	static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
	220	{
	221	struct em28xx *dev = fe->dvb->priv;
	222
	223	if (acquire)
	224	return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	225	else
2fe3e2ee	226	return em28xx_set_mode(dev, EM28XX_SUSPEND);
e3569abc MCC	227	}
e3569abc MCC	228
3aefb79a MCC	229	/* ------------------------------------------------------------------ */
3aefb79a MCC	230
227ad4ab MCC	231	static struct lgdt330x_config em2880_lgdt3303_dev = {
	232	.demod_address = 0x0e,
	233	.demod_chip = LGDT3303,
	234	};
3aefb79a	235
7e48b30a JW	236	static struct lgdt3305_config em2870_lgdt3304_dev = {
	237	.i2c_addr = 0x0e,
	238	.demod_chip = LGDT3304,
	239	.spectral_inversion = 1,
	240	.deny_i2c_rptr = 1,
	241	.mpeg_mode = LGDT3305_MPEG_PARALLEL,
	242	.tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
	243	.tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
	244	.vsb_if_khz = 3250,
	245	.qam_if_khz = 4000,
	246	};
	247
7e6388a1 AT	248	static struct zl10353_config em28xx_zl10353_with_xc3028 = {
	249	.demod_address = (0x1e >> 1),
	250	.no_tuner = 1,
	251	.parallel_ts = 1,
	252	.if2 = 45600,
	253	};
	254
6e7b9ea0 RK	255	static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
	256	.demod_address = 0x32 >> 1,
	257	.output_mode = S5H1409_PARALLEL_OUTPUT,
	258	.gpio = S5H1409_GPIO_OFF,
	259	.inversion = S5H1409_INVERSION_OFF,
	260	.status_mode = S5H1409_DEMODLOCKING,
	261	.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
	262	};
	263
7e48b30a JW	264	static struct tda18271_std_map kworld_a340_std_map = {
	265	.atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 0,
	266	.if_lvl = 1, .rfagc_top = 0x37, },
	267	.qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 1,
	268	.if_lvl = 1, .rfagc_top = 0x37, },
	269	};
	270
	271	static struct tda18271_config kworld_a340_config = {
	272	.std_map = &kworld_a340_std_map,
	273	};
	274
a84f79ae	275	static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
f797608c DH	276	.demod_address = (0x1e >> 1),
	277	.no_tuner = 1,
	278	.disable_i2c_gate_ctrl = 1,
	279	.parallel_ts = 1,
	280	.if2 = 45600,
	281	};
	282
17d9d558 DH	283	#ifdef EM28XX_DRX397XD_SUPPORT
	284	/* [TODO] djh - not sure yet what the device config needs to contain */
	285	static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
	286	.demod_address = (0xe0 >> 1),
	287	};
	288	#endif
	289
4fb202a8 DH	290	static int mt352_terratec_xs_init(struct dvb_frontend *fe)
	291	{
	292	/* Values extracted from a USB trace of the Terratec Windows driver */
	293	static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
	294	static u8 reset[] = { RESET, 0x80 };
	295	static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
	296	static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
	297	static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
	298	static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
	299	static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
	300	static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
	301	static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
ff69786b	302	static u8 tuner_go[] = { TUNER_GO, 0x01};
4fb202a8 DH	303
	304	mt352_write(fe, clock_config, sizeof(clock_config));
	305	udelay(200);
	306	mt352_write(fe, reset, sizeof(reset));
	307	mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
	308	mt352_write(fe, agc_cfg, sizeof(agc_cfg));
	309	mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
	310	mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
	311	mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
	312	mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
	313	mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
	314	mt352_write(fe, tuner_go, sizeof(tuner_go));
	315	return 0;
	316	}
	317
	318	static struct mt352_config terratec_xs_mt352_cfg = {
	319	.demod_address = (0x1e >> 1),
	320	.no_tuner = 1,
	321	.if2 = 45600,
	322	.demod_init = mt352_terratec_xs_init,
	323	};
	324
285eb1a4 AP	325	static struct tda10023_config em28xx_tda10023_config = {
	326	.demod_address = 0x0c,
	327	.invert = 1,
	328	};
	329
3aefb79a MCC	330	/* ------------------------------------------------------------------ */
	331
	332	static int attach_xc3028(u8 addr, struct em28xx *dev)
	333	{
	334	struct dvb_frontend *fe;
3ca9c093 MCC	335	struct xc2028_config cfg;
3ca9c093 MCC	336
6ea54d93	337	memset(&cfg, 0, sizeof(cfg));
3ca9c093 MCC	338	cfg.i2c_adap = &dev->i2c_adap;
3ca9c093 MCC	339	cfg.i2c_addr = addr;
3ca9c093	340
3421b778	341	if (!dev->dvb->frontend) {
480be185 FR	342	em28xx_errdev("/2: dvb frontend not attached. "
480be185 FR	343	"Can't attach xc3028\n");
3aefb79a MCC	344	return -EINVAL;
	345	}
	346
3421b778	347	fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
3aefb79a	348	if (!fe) {
480be185	349	em28xx_errdev("/2: xc3028 attach failed\n");
3421b778	350	dvb_frontend_detach(dev->dvb->frontend);
3421b778	351	dev->dvb->frontend = NULL;
3aefb79a MCC	352	return -EINVAL;
	353	}
	354
480be185	355	em28xx_info("%s/2: xc3028 attached\n", dev->name);
3aefb79a MCC	356
	357	return 0;
	358	}
	359
3421b778 AT	360	/* ------------------------------------------------------------------ */
3421b778 AT	361
d45b9b8a	362	static int register_dvb(struct em28xx_dvb *dvb,
3421b778 AT	363	struct module *module,
	364	struct em28xx *dev,
	365	struct device *device)
3aefb79a	366	{
3421b778	367	int result;
3aefb79a	368
3421b778	369	mutex_init(&dvb->lock);
3aefb79a	370
3421b778 AT	371	/* register adapter */
	372	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
	373	adapter_nr);
	374	if (result < 0) {
	375	printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
	376	dev->name, result);
	377	goto fail_adapter;
	378	}
e3569abc MCC	379
	380	/* Ensure all frontends negotiate bus access */
	381	dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
	382
3421b778 AT	383	dvb->adapter.priv = dev;
	384
	385	/* register frontend */
	386	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	387	if (result < 0) {
	388	printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
	389	dev->name, result);
	390	goto fail_frontend;
	391	}
	392
	393	/* register demux stuff */
	394	dvb->demux.dmx.capabilities =
	395	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	396	DMX_MEMORY_BASED_FILTERING;
	397	dvb->demux.priv = dvb;
	398	dvb->demux.filternum = 256;
	399	dvb->demux.feednum = 256;
	400	dvb->demux.start_feed = start_feed;
	401	dvb->demux.stop_feed = stop_feed;
e3569abc	402
3421b778 AT	403	result = dvb_dmx_init(&dvb->demux);
	404	if (result < 0) {
	405	printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
	406	dev->name, result);
	407	goto fail_dmx;
	408	}
	409
	410	dvb->dmxdev.filternum = 256;
	411	dvb->dmxdev.demux = &dvb->demux.dmx;
	412	dvb->dmxdev.capabilities = 0;
	413	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	414	if (result < 0) {
	415	printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
	416	dev->name, result);
	417	goto fail_dmxdev;
	418	}
52284c3e	419
3421b778 AT	420	dvb->fe_hw.source = DMX_FRONTEND_0;
	421	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	422	if (result < 0) {
	423	printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
	424	dev->name, result);
	425	goto fail_fe_hw;
	426	}
	427
	428	dvb->fe_mem.source = DMX_MEMORY_FE;
	429	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	430	if (result < 0) {
	431	printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
	432	dev->name, result);
	433	goto fail_fe_mem;
	434	}
	435
	436	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	437	if (result < 0) {
	438	printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
	439	dev->name, result);
	440	goto fail_fe_conn;
	441	}
	442
	443	/* register network adapter */
	444	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
	445	return 0;
	446
	447	fail_fe_conn:
	448	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	449	fail_fe_mem:
	450	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	451	fail_fe_hw:
	452	dvb_dmxdev_release(&dvb->dmxdev);
	453	fail_dmxdev:
	454	dvb_dmx_release(&dvb->demux);
	455	fail_dmx:
	456	dvb_unregister_frontend(dvb->frontend);
	457	fail_frontend:
	458	dvb_frontend_detach(dvb->frontend);
	459	dvb_unregister_adapter(&dvb->adapter);
	460	fail_adapter:
	461	return result;
	462	}
	463
	464	static void unregister_dvb(struct em28xx_dvb *dvb)
	465	{
	466	dvb_net_release(&dvb->net);
	467	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	468	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	469	dvb_dmxdev_release(&dvb->dmxdev);
	470	dvb_dmx_release(&dvb->demux);
	471	dvb_unregister_frontend(dvb->frontend);
	472	dvb_frontend_detach(dvb->frontend);
	473	dvb_unregister_adapter(&dvb->adapter);
	474	}
	475
	476
	477	static int dvb_init(struct em28xx *dev)
	478	{
	479	int result = 0;
	480	struct em28xx_dvb *dvb;
	481
505b6d0b	482	if (!dev->board.has_dvb) {
df619181 DH	483	/* This device does not support the extension */
	484	return 0;
	485	}
	486
3421b778	487	dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
6ea54d93 DSL	488
6ea54d93 DSL	489	if (dvb == NULL) {
480be185	490	em28xx_info("em28xx_dvb: memory allocation failed\n");
3421b778 AT	491	return -ENOMEM;
	492	}
	493	dev->dvb = dvb;
3aefb79a	494
5013318c	495	mutex_lock(&dev->lock);
c67ec53f	496	em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
3aefb79a MCC	497	/* init frontend */
3aefb79a MCC	498	switch (dev->model) {
f89bc329	499	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
10ac6603	500	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
4fd305b2	501	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
e14b3658	502	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
3421b778 AT	503	dvb->frontend = dvb_attach(lgdt330x_attach,
	504	&em2880_lgdt3303_dev,
	505	&dev->i2c_adap);
	506	if (attach_xc3028(0x61, dev) < 0) {
	507	result = -EINVAL;
	508	goto out_free;
	509	}
227ad4ab	510	break;
46510b56	511	case EM2880_BOARD_KWORLD_DVB_310U:
3421b778 AT	512	dvb->frontend = dvb_attach(zl10353_attach,
	513	&em28xx_zl10353_with_xc3028,
	514	&dev->i2c_adap);
	515	if (attach_xc3028(0x61, dev) < 0) {
	516	result = -EINVAL;
	517	goto out_free;
	518	}
7e6388a1	519	break;
a84f79ae	520	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
ec994d05	521	case EM2882_BOARD_TERRATEC_HYBRID_XS:
01a5fd6f	522	case EM2880_BOARD_EMPIRE_DUAL_TV:
a84f79ae DH	523	dvb->frontend = dvb_attach(zl10353_attach,
	524	&em28xx_zl10353_xc3028_no_i2c_gate,
	525	&dev->i2c_adap);
	526	if (attach_xc3028(0x61, dev) < 0) {
	527	result = -EINVAL;
	528	goto out_free;
	529	}
	530	break;
f797608c	531	case EM2880_BOARD_TERRATEC_HYBRID_XS:
65638011	532	case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
d5b3ba9c	533	case EM2881_BOARD_PINNACLE_HYBRID_PRO:
7ca7ef60	534	case EM2882_BOARD_DIKOM_DK300:
811fab62	535	case EM2882_BOARD_KWORLD_VS_DVBT:
f797608c	536	dvb->frontend = dvb_attach(zl10353_attach,
a84f79ae	537	&em28xx_zl10353_xc3028_no_i2c_gate,
f797608c DH	538	&dev->i2c_adap);
	539	if (dvb->frontend == NULL) {
	540	/* This board could have either a zl10353 or a mt352.
	541	If the chip id isn't for zl10353, try mt352 */
4fb202a8 DH	542	dvb->frontend = dvb_attach(mt352_attach,
	543	&terratec_xs_mt352_cfg,
	544	&dev->i2c_adap);
f797608c	545	}
4fb202a8	546
f797608c DH	547	if (attach_xc3028(0x61, dev) < 0) {
	548	result = -EINVAL;
	549	goto out_free;
	550	}
	551	break;
6e7b9ea0	552	case EM2883_BOARD_KWORLD_HYBRID_330U:
19859229	553	case EM2882_BOARD_EVGA_INDTUBE:
6e7b9ea0 RK	554	dvb->frontend = dvb_attach(s5h1409_attach,
	555	&em28xx_s5h1409_with_xc3028,
	556	&dev->i2c_adap);
	557	if (attach_xc3028(0x61, dev) < 0) {
	558	result = -EINVAL;
	559	goto out_free;
	560	}
	561	break;
d7de5d8f FM	562	case EM2882_BOARD_KWORLD_ATSC_315U:
	563	dvb->frontend = dvb_attach(lgdt330x_attach,
	564	&em2880_lgdt3303_dev,
	565	&dev->i2c_adap);
	566	if (dvb->frontend != NULL) {
	567	if (!dvb_attach(simple_tuner_attach, dvb->frontend,
	568	&dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
	569	result = -EINVAL;
	570	goto out_free;
	571	}
	572	}
	573	break;
17d9d558 DH	574	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
	575	#ifdef EM28XX_DRX397XD_SUPPORT
	576	/* We don't have the config structure properly populated, so
	577	this is commented out for now */
	578	dvb->frontend = dvb_attach(drx397xD_attach,
	579	&em28xx_drx397xD_with_xc3028,
	580	&dev->i2c_adap);
	581	if (attach_xc3028(0x61, dev) < 0) {
	582	result = -EINVAL;
	583	goto out_free;
	584	}
	585	break;
	586	#endif
285eb1a4 AP	587	case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
	588	/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
	589	dvb->frontend = dvb_attach(tda10023_attach,
	590	&em28xx_tda10023_config,
	591	&dev->i2c_adap, 0x48);
	592	if (dvb->frontend) {
	593	if (!dvb_attach(simple_tuner_attach, dvb->frontend,
	594	&dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
	595	result = -EINVAL;
	596	goto out_free;
	597	}
	598	}
	599	break;
7e48b30a JW	600	case EM2870_BOARD_KWORLD_A340:
	601	dvb->frontend = dvb_attach(lgdt3305_attach,
	602	&em2870_lgdt3304_dev,
	603	&dev->i2c_adap);
	604	if (dvb->frontend != NULL)
	605	dvb_attach(tda18271_attach, dvb->frontend, 0x60,
	606	&dev->i2c_adap, &kworld_a340_config);
	607	break;
3aefb79a	608	default:
480be185 FR	609	em28xx_errdev("/2: The frontend of your DVB/ATSC card"
480be185 FR	610	" isn't supported yet\n");
3aefb79a MCC	611	break;
3aefb79a MCC	612	}
3421b778	613	if (NULL == dvb->frontend) {
480be185	614	em28xx_errdev("/2: frontend initialization failed\n");
3421b778 AT	615	result = -EINVAL;
3421b778 AT	616	goto out_free;
3aefb79a	617	}
d7cba043 MK	618	/* define general-purpose callback pointer */
d7cba043 MK	619	dvb->frontend->callback = em28xx_tuner_callback;
3aefb79a MCC	620
3aefb79a MCC	621	/* register everything */
3421b778 AT	622	result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
3421b778 AT	623
6ea54d93	624	if (result < 0)
3421b778	625	goto out_free;
3421b778	626
480be185	627	em28xx_info("Successfully loaded em28xx-dvb\n");
5013318c MCC	628	ret:
	629	em28xx_set_mode(dev, EM28XX_SUSPEND);
	630	mutex_unlock(&dev->lock);
	631	return result;
3421b778 AT	632
	633	out_free:
	634	kfree(dvb);
	635	dev->dvb = NULL;
5013318c	636	goto ret;
3aefb79a MCC	637	}
	638
	639	static int dvb_fini(struct em28xx *dev)
	640	{
505b6d0b	641	if (!dev->board.has_dvb) {
df619181 DH	642	/* This device does not support the extension */
	643	return 0;
	644	}
	645
3421b778 AT	646	if (dev->dvb) {
3421b778 AT	647	unregister_dvb(dev->dvb);
19f48cb1	648	kfree(dev->dvb);
3421b778 AT	649	dev->dvb = NULL;
3421b778 AT	650	}
3aefb79a MCC	651
	652	return 0;
	653	}
	654
	655	static struct em28xx_ops dvb_ops = {
	656	.id = EM28XX_DVB,
	657	.name = "Em28xx dvb Extension",
	658	.init = dvb_init,
	659	.fini = dvb_fini,
	660	};
	661
	662	static int __init em28xx_dvb_register(void)
	663	{
	664	return em28xx_register_extension(&dvb_ops);
	665	}
	666
	667	static void __exit em28xx_dvb_unregister(void)
	668	{
	669	em28xx_unregister_extension(&dvb_ops);
	670	}
	671
	672	module_init(em28xx_dvb_register);
	673	module_exit(em28xx_dvb_unregister);