[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"
#include "s921.h"
#include "drxd.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 s921_config sharp_isdbt = {
	.demod_address = 0x30 >> 1
};

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,
};

static struct drxd_config em28xx_drxd = {
	.index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
	.demoda_address = 0x00, .pll_address = 0x00,
	.pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
	.pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
};

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 */
		printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
		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 EM2874_LEADERSHIP_ISDBT:
		dvb->frontend = dvb_attach(s921_attach,
				&sharp_isdbt, &dev->i2c_adap);

		if (!dvb->frontend) {
			result = -EINVAL;
			goto out_free;
		}

		break;
	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:
		dvb->frontend = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
					   &dev->i2c_adap, &dev->udev->dev);
		if (attach_xc3028(0x61, dev) < 0) {
			result = -EINVAL;
			goto out_free;
		}
		break;
	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"
ca3dfd6a	40	#include "s921.h"
75e2b869	41	#include "drxd.h"
3aefb79a MCC	42
	43	MODULE_DESCRIPTION("driver for em28xx based DVB cards");
	44	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
	45	MODULE_LICENSE("GPL");
	46
	47	static unsigned int debug;
	48	module_param(debug, int, 0644);
	49	MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
	50
	51	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
	52
	53	#define dprintk(level, fmt, arg...) do { \
	54	if (debug >= level) \
3421b778	55	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
3aefb79a MCC	56	} while (0)
3aefb79a MCC	57
3421b778	58	#define EM28XX_DVB_NUM_BUFS 5
3421b778 AT	59	#define EM28XX_DVB_MAX_PACKETS 64
	60
	61	struct em28xx_dvb {
	62	struct dvb_frontend *frontend;
	63
	64	/* feed count management */
	65	struct mutex lock;
	66	int nfeeds;
	67
	68	/* general boilerplate stuff */
	69	struct dvb_adapter adapter;
	70	struct dvb_demux demux;
	71	struct dmxdev dmxdev;
	72	struct dmx_frontend fe_hw;
	73	struct dmx_frontend fe_mem;
	74	struct dvb_net net;
	75	};
	76
	77
	78	static inline void print_err_status(struct em28xx *dev,
	79	int packet, int status)
3aefb79a	80	{
3421b778	81	char *errmsg = "Unknown";
3aefb79a	82
3421b778 AT	83	switch (status) {
	84	case -ENOENT:
	85	errmsg = "unlinked synchronuously";
	86	break;
	87	case -ECONNRESET:
	88	errmsg = "unlinked asynchronuously";
	89	break;
	90	case -ENOSR:
	91	errmsg = "Buffer error (overrun)";
	92	break;
	93	case -EPIPE:
	94	errmsg = "Stalled (device not responding)";
	95	break;
	96	case -EOVERFLOW:
	97	errmsg = "Babble (bad cable?)";
	98	break;
	99	case -EPROTO:
	100	errmsg = "Bit-stuff error (bad cable?)";
	101	break;
	102	case -EILSEQ:
	103	errmsg = "CRC/Timeout (could be anything)";
	104	break;
	105	case -ETIME:
	106	errmsg = "Device does not respond";
	107	break;
	108	}
	109	if (packet < 0) {
	110	dprintk(1, "URB status %d [%s].\n", status, errmsg);
	111	} else {
6ea54d93 DSL	112	dprintk(1, "URB packet %d, status %d [%s].\n",
6ea54d93 DSL	113	packet, status, errmsg);
3421b778 AT	114	}
3421b778 AT	115	}
3aefb79a	116
3421b778 AT	117	static inline int dvb_isoc_copy(struct em28xx dev, struct urb urb)
	118	{
	119	int i;
3aefb79a	120
3421b778 AT	121	if (!dev)
3421b778 AT	122	return 0;
3aefb79a	123
3421b778 AT	124	if ((dev->state & DEV_DISCONNECTED) \|\| (dev->state & DEV_MISCONFIGURED))
	125	return 0;
	126
	127	if (urb->status < 0) {
	128	print_err_status(dev, -1, urb->status);
	129	if (urb->status == -ENOENT)
	130	return 0;
	131	}
	132
	133	for (i = 0; i < urb->number_of_packets; i++) {
	134	int status = urb->iso_frame_desc[i].status;
	135
	136	if (status < 0) {
	137	print_err_status(dev, i, status);
	138	if (urb->iso_frame_desc[i].status != -EPROTO)
	139	continue;
	140	}
	141
	142	dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
	143	urb->iso_frame_desc[i].offset,
	144	urb->iso_frame_desc[i].actual_length);
	145	}
	146
	147	return 0;
	148	}
	149
6ea54d93 DSL	150	static int start_streaming(struct em28xx_dvb *dvb)
6ea54d93 DSL	151	{
c67ec53f	152	int rc;
3421b778	153	struct em28xx *dev = dvb->adapter.priv;
d18e2fda	154	int max_dvb_packet_size;
3421b778 AT	155
3421b778 AT	156	usb_set_interface(dev->udev, 0, 1);
c67ec53f MCC	157	rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	158	if (rc < 0)
	159	return rc;
3421b778	160
d18e2fda DH	161	max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
d18e2fda DH	162
3421b778	163	return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
d18e2fda	164	EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
c67ec53f	165	dvb_isoc_copy);
3421b778 AT	166	}
3421b778 AT	167
6ea54d93 DSL	168	static int stop_streaming(struct em28xx_dvb *dvb)
6ea54d93 DSL	169	{
3421b778 AT	170	struct em28xx *dev = dvb->adapter.priv;
	171
	172	em28xx_uninit_isoc(dev);
c67ec53f	173
2fe3e2ee	174	em28xx_set_mode(dev, EM28XX_SUSPEND);
c67ec53f	175
3aefb79a MCC	176	return 0;
	177	}
	178
3421b778 AT	179	static int start_feed(struct dvb_demux_feed *feed)
	180	{
	181	struct dvb_demux *demux = feed->demux;
	182	struct em28xx_dvb *dvb = demux->priv;
	183	int rc, ret;
	184
	185	if (!demux->dmx.frontend)
	186	return -EINVAL;
	187
	188	mutex_lock(&dvb->lock);
	189	dvb->nfeeds++;
	190	rc = dvb->nfeeds;
	191
	192	if (dvb->nfeeds == 1) {
	193	ret = start_streaming(dvb);
6ea54d93 DSL	194	if (ret < 0)
6ea54d93 DSL	195	rc = ret;
3421b778 AT	196	}
	197
	198	mutex_unlock(&dvb->lock);
	199	return rc;
	200	}
	201
	202	static int stop_feed(struct dvb_demux_feed *feed)
	203	{
	204	struct dvb_demux *demux = feed->demux;
	205	struct em28xx_dvb *dvb = demux->priv;
	206	int err = 0;
	207
	208	mutex_lock(&dvb->lock);
	209	dvb->nfeeds--;
6ea54d93 DSL	210
6ea54d93 DSL	211	if (0 == dvb->nfeeds)
3421b778	212	err = stop_streaming(dvb);
6ea54d93	213
3421b778 AT	214	mutex_unlock(&dvb->lock);
	215	return err;
	216	}
	217
	218
e3569abc MCC	219
	220	/* ------------------------------------------------------------------ */
	221	static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
	222	{
	223	struct em28xx *dev = fe->dvb->priv;
	224
	225	if (acquire)
	226	return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
	227	else
2fe3e2ee	228	return em28xx_set_mode(dev, EM28XX_SUSPEND);
e3569abc MCC	229	}
e3569abc MCC	230
3aefb79a MCC	231	/* ------------------------------------------------------------------ */
3aefb79a MCC	232
227ad4ab MCC	233	static struct lgdt330x_config em2880_lgdt3303_dev = {
	234	.demod_address = 0x0e,
	235	.demod_chip = LGDT3303,
	236	};
3aefb79a	237
7e48b30a JW	238	static struct lgdt3305_config em2870_lgdt3304_dev = {
	239	.i2c_addr = 0x0e,
	240	.demod_chip = LGDT3304,
	241	.spectral_inversion = 1,
	242	.deny_i2c_rptr = 1,
	243	.mpeg_mode = LGDT3305_MPEG_PARALLEL,
	244	.tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
	245	.tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
	246	.vsb_if_khz = 3250,
	247	.qam_if_khz = 4000,
	248	};
	249
ca3dfd6a MCC	250	static struct s921_config sharp_isdbt = {
	251	.demod_address = 0x30 >> 1
	252	};
	253
7e6388a1 AT	254	static struct zl10353_config em28xx_zl10353_with_xc3028 = {
	255	.demod_address = (0x1e >> 1),
	256	.no_tuner = 1,
	257	.parallel_ts = 1,
	258	.if2 = 45600,
	259	};
	260
6e7b9ea0 RK	261	static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
	262	.demod_address = 0x32 >> 1,
	263	.output_mode = S5H1409_PARALLEL_OUTPUT,
	264	.gpio = S5H1409_GPIO_OFF,
	265	.inversion = S5H1409_INVERSION_OFF,
	266	.status_mode = S5H1409_DEMODLOCKING,
	267	.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
	268	};
	269
7e48b30a JW	270	static struct tda18271_std_map kworld_a340_std_map = {
	271	.atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 0,
	272	.if_lvl = 1, .rfagc_top = 0x37, },
	273	.qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 1,
	274	.if_lvl = 1, .rfagc_top = 0x37, },
	275	};
	276
	277	static struct tda18271_config kworld_a340_config = {
	278	.std_map = &kworld_a340_std_map,
	279	};
	280
a84f79ae	281	static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
f797608c DH	282	.demod_address = (0x1e >> 1),
	283	.no_tuner = 1,
	284	.disable_i2c_gate_ctrl = 1,
	285	.parallel_ts = 1,
	286	.if2 = 45600,
	287	};
	288
75e2b869 DH	289	static struct drxd_config em28xx_drxd = {
	290	.index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
	291	.demoda_address = 0x00, .pll_address = 0x00,
	292	.pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
	293	.pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
17d9d558	294	};
17d9d558	295
4fb202a8 DH	296	static int mt352_terratec_xs_init(struct dvb_frontend *fe)
	297	{
	298	/* Values extracted from a USB trace of the Terratec Windows driver */
	299	static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
	300	static u8 reset[] = { RESET, 0x80 };
	301	static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
	302	static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
	303	static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
	304	static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
	305	static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
	306	static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
	307	static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
ff69786b	308	static u8 tuner_go[] = { TUNER_GO, 0x01};
4fb202a8 DH	309
	310	mt352_write(fe, clock_config, sizeof(clock_config));
	311	udelay(200);
	312	mt352_write(fe, reset, sizeof(reset));
	313	mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
	314	mt352_write(fe, agc_cfg, sizeof(agc_cfg));
	315	mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
	316	mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
	317	mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
	318	mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
	319	mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
	320	mt352_write(fe, tuner_go, sizeof(tuner_go));
	321	return 0;
	322	}
	323
	324	static struct mt352_config terratec_xs_mt352_cfg = {
	325	.demod_address = (0x1e >> 1),
	326	.no_tuner = 1,
	327	.if2 = 45600,
	328	.demod_init = mt352_terratec_xs_init,
	329	};
	330
285eb1a4 AP	331	static struct tda10023_config em28xx_tda10023_config = {
	332	.demod_address = 0x0c,
	333	.invert = 1,
	334	};
	335
3aefb79a MCC	336	/* ------------------------------------------------------------------ */
	337
	338	static int attach_xc3028(u8 addr, struct em28xx *dev)
	339	{
	340	struct dvb_frontend *fe;
3ca9c093 MCC	341	struct xc2028_config cfg;
3ca9c093 MCC	342
6ea54d93	343	memset(&cfg, 0, sizeof(cfg));
3ca9c093 MCC	344	cfg.i2c_adap = &dev->i2c_adap;
3ca9c093 MCC	345	cfg.i2c_addr = addr;
3ca9c093	346
3421b778	347	if (!dev->dvb->frontend) {
480be185 FR	348	em28xx_errdev("/2: dvb frontend not attached. "
480be185 FR	349	"Can't attach xc3028\n");
3aefb79a MCC	350	return -EINVAL;
	351	}
	352
3421b778	353	fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
3aefb79a	354	if (!fe) {
480be185	355	em28xx_errdev("/2: xc3028 attach failed\n");
3421b778	356	dvb_frontend_detach(dev->dvb->frontend);
3421b778	357	dev->dvb->frontend = NULL;
3aefb79a MCC	358	return -EINVAL;
	359	}
	360
480be185	361	em28xx_info("%s/2: xc3028 attached\n", dev->name);
3aefb79a MCC	362
	363	return 0;
	364	}
	365
3421b778 AT	366	/* ------------------------------------------------------------------ */
3421b778 AT	367
d45b9b8a	368	static int register_dvb(struct em28xx_dvb *dvb,
3421b778 AT	369	struct module *module,
	370	struct em28xx *dev,
	371	struct device *device)
3aefb79a	372	{
3421b778	373	int result;
3aefb79a	374
3421b778	375	mutex_init(&dvb->lock);
3aefb79a	376
3421b778 AT	377	/* register adapter */
	378	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
	379	adapter_nr);
	380	if (result < 0) {
	381	printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
	382	dev->name, result);
	383	goto fail_adapter;
	384	}
e3569abc MCC	385
	386	/* Ensure all frontends negotiate bus access */
	387	dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
	388
3421b778 AT	389	dvb->adapter.priv = dev;
	390
	391	/* register frontend */
	392	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	393	if (result < 0) {
	394	printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
	395	dev->name, result);
	396	goto fail_frontend;
	397	}
	398
	399	/* register demux stuff */
	400	dvb->demux.dmx.capabilities =
	401	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	402	DMX_MEMORY_BASED_FILTERING;
	403	dvb->demux.priv = dvb;
	404	dvb->demux.filternum = 256;
	405	dvb->demux.feednum = 256;
	406	dvb->demux.start_feed = start_feed;
	407	dvb->demux.stop_feed = stop_feed;
e3569abc	408
3421b778 AT	409	result = dvb_dmx_init(&dvb->demux);
	410	if (result < 0) {
	411	printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
	412	dev->name, result);
	413	goto fail_dmx;
	414	}
	415
	416	dvb->dmxdev.filternum = 256;
	417	dvb->dmxdev.demux = &dvb->demux.dmx;
	418	dvb->dmxdev.capabilities = 0;
	419	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	420	if (result < 0) {
	421	printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
	422	dev->name, result);
	423	goto fail_dmxdev;
	424	}
52284c3e	425
3421b778 AT	426	dvb->fe_hw.source = DMX_FRONTEND_0;
	427	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	428	if (result < 0) {
	429	printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
	430	dev->name, result);
	431	goto fail_fe_hw;
	432	}
	433
	434	dvb->fe_mem.source = DMX_MEMORY_FE;
	435	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	436	if (result < 0) {
	437	printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
	438	dev->name, result);
	439	goto fail_fe_mem;
	440	}
	441
	442	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	443	if (result < 0) {
	444	printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
	445	dev->name, result);
	446	goto fail_fe_conn;
	447	}
	448
	449	/* register network adapter */
	450	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
	451	return 0;
	452
	453	fail_fe_conn:
	454	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	455	fail_fe_mem:
	456	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	457	fail_fe_hw:
	458	dvb_dmxdev_release(&dvb->dmxdev);
	459	fail_dmxdev:
	460	dvb_dmx_release(&dvb->demux);
	461	fail_dmx:
	462	dvb_unregister_frontend(dvb->frontend);
	463	fail_frontend:
	464	dvb_frontend_detach(dvb->frontend);
	465	dvb_unregister_adapter(&dvb->adapter);
	466	fail_adapter:
	467	return result;
	468	}
	469
	470	static void unregister_dvb(struct em28xx_dvb *dvb)
	471	{
	472	dvb_net_release(&dvb->net);
	473	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	474	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	475	dvb_dmxdev_release(&dvb->dmxdev);
	476	dvb_dmx_release(&dvb->demux);
	477	dvb_unregister_frontend(dvb->frontend);
	478	dvb_frontend_detach(dvb->frontend);
	479	dvb_unregister_adapter(&dvb->adapter);
	480	}
	481
	482
	483	static int dvb_init(struct em28xx *dev)
	484	{
	485	int result = 0;
	486	struct em28xx_dvb *dvb;
	487
505b6d0b	488	if (!dev->board.has_dvb) {
df619181	489	/* This device does not support the extension */
ca3dfd6a	490	printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
df619181 DH	491	return 0;
	492	}
	493
3421b778	494	dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
6ea54d93 DSL	495
6ea54d93 DSL	496	if (dvb == NULL) {
480be185	497	em28xx_info("em28xx_dvb: memory allocation failed\n");
3421b778 AT	498	return -ENOMEM;
	499	}
	500	dev->dvb = dvb;
3aefb79a	501
5013318c	502	mutex_lock(&dev->lock);
c67ec53f	503	em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
3aefb79a MCC	504	/* init frontend */
3aefb79a MCC	505	switch (dev->model) {
ca3dfd6a MCC	506	case EM2874_LEADERSHIP_ISDBT:
	507	dvb->frontend = dvb_attach(s921_attach,
	508	&sharp_isdbt, &dev->i2c_adap);
	509
	510	if (!dvb->frontend) {
	511	result = -EINVAL;
	512	goto out_free;
	513	}
	514
	515	break;
f89bc329	516	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
10ac6603	517	case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
4fd305b2	518	case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
e14b3658	519	case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
3421b778 AT	520	dvb->frontend = dvb_attach(lgdt330x_attach,
	521	&em2880_lgdt3303_dev,
	522	&dev->i2c_adap);
	523	if (attach_xc3028(0x61, dev) < 0) {
	524	result = -EINVAL;
	525	goto out_free;
	526	}
227ad4ab	527	break;
46510b56	528	case EM2880_BOARD_KWORLD_DVB_310U:
3421b778 AT	529	dvb->frontend = dvb_attach(zl10353_attach,
	530	&em28xx_zl10353_with_xc3028,
	531	&dev->i2c_adap);
	532	if (attach_xc3028(0x61, dev) < 0) {
	533	result = -EINVAL;
	534	goto out_free;
	535	}
7e6388a1	536	break;
a84f79ae	537	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
ec994d05	538	case EM2882_BOARD_TERRATEC_HYBRID_XS:
01a5fd6f	539	case EM2880_BOARD_EMPIRE_DUAL_TV:
a84f79ae DH	540	dvb->frontend = dvb_attach(zl10353_attach,
	541	&em28xx_zl10353_xc3028_no_i2c_gate,
	542	&dev->i2c_adap);
	543	if (attach_xc3028(0x61, dev) < 0) {
	544	result = -EINVAL;
	545	goto out_free;
	546	}
	547	break;
f797608c	548	case EM2880_BOARD_TERRATEC_HYBRID_XS:
65638011	549	case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
d5b3ba9c	550	case EM2881_BOARD_PINNACLE_HYBRID_PRO:
7ca7ef60	551	case EM2882_BOARD_DIKOM_DK300:
811fab62	552	case EM2882_BOARD_KWORLD_VS_DVBT:
f797608c	553	dvb->frontend = dvb_attach(zl10353_attach,
a84f79ae	554	&em28xx_zl10353_xc3028_no_i2c_gate,
f797608c DH	555	&dev->i2c_adap);
	556	if (dvb->frontend == NULL) {
	557	/* This board could have either a zl10353 or a mt352.
	558	If the chip id isn't for zl10353, try mt352 */
4fb202a8 DH	559	dvb->frontend = dvb_attach(mt352_attach,
	560	&terratec_xs_mt352_cfg,
	561	&dev->i2c_adap);
f797608c	562	}
4fb202a8	563
f797608c DH	564	if (attach_xc3028(0x61, dev) < 0) {
	565	result = -EINVAL;
	566	goto out_free;
	567	}
	568	break;
6e7b9ea0	569	case EM2883_BOARD_KWORLD_HYBRID_330U:
19859229	570	case EM2882_BOARD_EVGA_INDTUBE:
6e7b9ea0 RK	571	dvb->frontend = dvb_attach(s5h1409_attach,
	572	&em28xx_s5h1409_with_xc3028,
	573	&dev->i2c_adap);
	574	if (attach_xc3028(0x61, dev) < 0) {
	575	result = -EINVAL;
	576	goto out_free;
	577	}
	578	break;
d7de5d8f FM	579	case EM2882_BOARD_KWORLD_ATSC_315U:
	580	dvb->frontend = dvb_attach(lgdt330x_attach,
	581	&em2880_lgdt3303_dev,
	582	&dev->i2c_adap);
	583	if (dvb->frontend != NULL) {
	584	if (!dvb_attach(simple_tuner_attach, dvb->frontend,
	585	&dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
	586	result = -EINVAL;
	587	goto out_free;
	588	}
	589	}
	590	break;
17d9d558	591	case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
75e2b869 DH	592	dvb->frontend = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
75e2b869 DH	593	&dev->i2c_adap, &dev->udev->dev);
17d9d558 DH	594	if (attach_xc3028(0x61, dev) < 0) {
	595	result = -EINVAL;
	596	goto out_free;
	597	}
	598	break;
285eb1a4 AP	599	case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
	600	/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
	601	dvb->frontend = dvb_attach(tda10023_attach,
	602	&em28xx_tda10023_config,
	603	&dev->i2c_adap, 0x48);
	604	if (dvb->frontend) {
	605	if (!dvb_attach(simple_tuner_attach, dvb->frontend,
	606	&dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
	607	result = -EINVAL;
	608	goto out_free;
	609	}
	610	}
	611	break;
7e48b30a JW	612	case EM2870_BOARD_KWORLD_A340:
	613	dvb->frontend = dvb_attach(lgdt3305_attach,
	614	&em2870_lgdt3304_dev,
	615	&dev->i2c_adap);
	616	if (dvb->frontend != NULL)
	617	dvb_attach(tda18271_attach, dvb->frontend, 0x60,
	618	&dev->i2c_adap, &kworld_a340_config);
	619	break;
3aefb79a	620	default:
480be185 FR	621	em28xx_errdev("/2: The frontend of your DVB/ATSC card"
480be185 FR	622	" isn't supported yet\n");
3aefb79a MCC	623	break;
3aefb79a MCC	624	}
3421b778	625	if (NULL == dvb->frontend) {
480be185	626	em28xx_errdev("/2: frontend initialization failed\n");
3421b778 AT	627	result = -EINVAL;
3421b778 AT	628	goto out_free;
3aefb79a	629	}
d7cba043 MK	630	/* define general-purpose callback pointer */
d7cba043 MK	631	dvb->frontend->callback = em28xx_tuner_callback;
3aefb79a MCC	632
3aefb79a MCC	633	/* register everything */
3421b778 AT	634	result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
3421b778 AT	635
6ea54d93	636	if (result < 0)
3421b778	637	goto out_free;
3421b778	638
480be185	639	em28xx_info("Successfully loaded em28xx-dvb\n");
5013318c MCC	640	ret:
	641	em28xx_set_mode(dev, EM28XX_SUSPEND);
	642	mutex_unlock(&dev->lock);
	643	return result;
3421b778 AT	644
	645	out_free:
	646	kfree(dvb);
	647	dev->dvb = NULL;
5013318c	648	goto ret;
3aefb79a MCC	649	}
	650
	651	static int dvb_fini(struct em28xx *dev)
	652	{
505b6d0b	653	if (!dev->board.has_dvb) {
df619181 DH	654	/* This device does not support the extension */
	655	return 0;
	656	}
	657
3421b778 AT	658	if (dev->dvb) {
3421b778 AT	659	unregister_dvb(dev->dvb);
19f48cb1	660	kfree(dev->dvb);
3421b778 AT	661	dev->dvb = NULL;
3421b778 AT	662	}
3aefb79a MCC	663
	664	return 0;
	665	}
	666
	667	static struct em28xx_ops dvb_ops = {
	668	.id = EM28XX_DVB,
	669	.name = "Em28xx dvb Extension",
	670	.init = dvb_init,
	671	.fini = dvb_fini,
	672	};
	673
	674	static int __init em28xx_dvb_register(void)
	675	{
	676	return em28xx_register_extension(&dvb_ops);
	677	}
	678
	679	static void __exit em28xx_dvb_unregister(void)
	680	{
	681	em28xx_unregister_extension(&dvb_ops);
	682	}
	683
	684	module_init(em28xx_dvb_register);
	685	module_exit(em28xx_dvb_unregister);