drivers/media/video/saa7164/saa7164-dvb.c - kernel/bruno - Git at Google

 /*
  *  Driver for the NXP SAA7164 PCIe bridge
  *
  *  Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

 #include "saa7164.h"

 #include "tda10048.h"
 #include "tda18271.h"
 #include "s5h1411.h"

 #define DRIVER_NAME "saa7164"

 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

 /* addr is in the card struct, get it from there */
 static struct tda10048_config hauppauge_hvr2200_1_config = {
 	.demod_address    = 0x10 >> 1,
 	.output_mode      = TDA10048_SERIAL_OUTPUT,
 	.fwbulkwritelen   = TDA10048_BULKWRITE_200,
 	.inversion        = TDA10048_INVERSION_ON,
 	.dtv6_if_freq_khz = TDA10048_IF_3300,
 	.dtv7_if_freq_khz = TDA10048_IF_3500,
 	.dtv8_if_freq_khz = TDA10048_IF_4000,
 	.clk_freq_khz     = TDA10048_CLK_16000,
 };
 static struct tda10048_config hauppauge_hvr2200_2_config = {
 	.demod_address    = 0x12 >> 1,
 	.output_mode      = TDA10048_SERIAL_OUTPUT,
 	.fwbulkwritelen   = TDA10048_BULKWRITE_200,
 	.inversion        = TDA10048_INVERSION_ON,
 	.dtv6_if_freq_khz = TDA10048_IF_3300,
 	.dtv7_if_freq_khz = TDA10048_IF_3500,
 	.dtv8_if_freq_khz = TDA10048_IF_4000,
 	.clk_freq_khz     = TDA10048_CLK_16000,
 };

 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 	.atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 3,
 		      .if_lvl = 6, .rfagc_top = 0x37 },
 	.qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
 		      .if_lvl = 6, .rfagc_top = 0x37 },
 };

 static struct tda18271_config hauppauge_hvr22x0_tuner_config = {
 	.std_map	= &hauppauge_tda18271_std_map,
 	.gate		= TDA18271_GATE_ANALOG,
 	.role		= TDA18271_MASTER,
 };

 static struct tda18271_config hauppauge_hvr22x0s_tuner_config = {
 	.std_map	= &hauppauge_tda18271_std_map,
 	.gate		= TDA18271_GATE_ANALOG,
 	.role		= TDA18271_SLAVE,
 	.output_opt     = TDA18271_OUTPUT_LT_OFF,
 	.rf_cal_on_startup = 1
 };

 static struct s5h1411_config hauppauge_s5h1411_config = {
 	.output_mode   = S5H1411_SERIAL_OUTPUT,
 	.gpio          = S5H1411_GPIO_ON,
 	.qam_if        = S5H1411_IF_4000,
 	.vsb_if        = S5H1411_IF_3250,
 	.inversion     = S5H1411_INVERSION_ON,
 	.status_mode   = S5H1411_DEMODLOCKING,
 	.mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 };

 static int saa7164_dvb_stop_port(struct saa7164_port *port)
 {
 	struct saa7164_dev *dev = port->dev;
 	int ret;

 	ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 	if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 		printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
 			__func__, ret);
 		ret = -EIO;
 	} else {
 		dprintk(DBGLVL_DVB, "%s()    Stopped\n", __func__);
 		ret = 0;
 	}

 	return ret;
 }

 static int saa7164_dvb_acquire_port(struct saa7164_port *port)
 {
 	struct saa7164_dev *dev = port->dev;
 	int ret;

 	ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 	if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 		printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
 			__func__, ret);
 		ret = -EIO;
 	} else {
 		dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
 		ret = 0;
 	}

 	return ret;
 }

 static int saa7164_dvb_pause_port(struct saa7164_port *port)
 {
 	struct saa7164_dev *dev = port->dev;
 	int ret;

 	ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 	if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 		printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
 			__func__, ret);
 		ret = -EIO;
 	} else {
 		dprintk(DBGLVL_DVB, "%s()   Paused\n", __func__);
 		ret = 0;
 	}

 	return ret;
 }

 /* Firmware is very windows centric, meaning you have to transition
  * the part through AVStream / KS Windows stages, forwards or backwards.
  * States are: stopped, acquired (h/w), paused, started.
  */
 static int saa7164_dvb_stop_streaming(struct saa7164_port *port)
 {
 	struct saa7164_dev *dev = port->dev;
 	struct saa7164_buffer *buf;
 	struct list_head *p, *q;
 	int ret;

 	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

 	ret = saa7164_dvb_pause_port(port);
 	ret = saa7164_dvb_acquire_port(port);
 	ret = saa7164_dvb_stop_port(port);

 	/* Mark the hardware buffers as free */
 	mutex_lock(&port->dmaqueue_lock);
 	list_for_each_safe(p, q, &port->dmaqueue.list) {
 		buf = list_entry(p, struct saa7164_buffer, list);
 		buf->flags = SAA7164_BUFFER_FREE;
 	}
 	mutex_unlock(&port->dmaqueue_lock);

 	return ret;
 }

 static int saa7164_dvb_start_port(struct saa7164_port *port)
 {
 	struct saa7164_dev *dev = port->dev;
 	int ret = 0, result;

 	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

 	saa7164_buffer_cfg_port(port);

 	/* Acquire the hardware */
 	result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 		printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
 			__func__, result);

 		/* Stop the hardware, regardless */
 		result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 		if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 			printk(KERN_ERR "%s() acquire/forced stop transition "
 				"failed, res = 0x%x\n", __func__, result);
 		}
 		ret = -EIO;
 		goto out;
 	} else
 		dprintk(DBGLVL_DVB, "%s()   Acquired\n", __func__);

 	/* Pause the hardware */
 	result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 		printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
 				__func__, result);

 		/* Stop the hardware, regardless */
 		result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 		if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 			printk(KERN_ERR "%s() pause/forced stop transition "
 				"failed, res = 0x%x\n", __func__, result);
 		}

 		ret = -EIO;
 		goto out;
 	} else
 		dprintk(DBGLVL_DVB, "%s()   Paused\n", __func__);

 	/* Start the hardware */
 	result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
 	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 		printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
 				__func__, result);

 		/* Stop the hardware, regardless */
 		result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 		if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 			printk(KERN_ERR "%s() run/forced stop transition "
 				"failed, res = 0x%x\n", __func__, result);
 		}

 		ret = -EIO;
 	} else
 		dprintk(DBGLVL_DVB, "%s()   Running\n", __func__);

 out:
 	return ret;
 }

 static int saa7164_dvb_start_feed(struct dvb_demux_feed *feed)
 {
 	struct dvb_demux *demux = feed->demux;
 	struct saa7164_port *port = (struct saa7164_port *) demux->priv;
 	struct saa7164_dvb *dvb = &port->dvb;
 	struct saa7164_dev *dev = port->dev;
 	int ret = 0;

 	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

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

 	if (dvb) {
 		mutex_lock(&dvb->lock);
 		if (dvb->feeding++ == 0) {
 			/* Start transport */
 			ret = saa7164_dvb_start_port(port);
 		}
 		mutex_unlock(&dvb->lock);
 		dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
 			__func__, port->nr, dvb->feeding);
 	}

 	return ret;
 }

 static int saa7164_dvb_stop_feed(struct dvb_demux_feed *feed)
 {
 	struct dvb_demux *demux = feed->demux;
 	struct saa7164_port *port = (struct saa7164_port *) demux->priv;
 	struct saa7164_dvb *dvb = &port->dvb;
 	struct saa7164_dev *dev = port->dev;
 	int ret = 0;

 	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

 	if (dvb) {
 		mutex_lock(&dvb->lock);
 		if (--dvb->feeding == 0) {
 			/* Stop transport */
 			ret = saa7164_dvb_stop_streaming(port);
 		}
 		mutex_unlock(&dvb->lock);
 		dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
 			__func__, port->nr, dvb->feeding);
 	}

 	return ret;
 }

 static int dvb_register(struct saa7164_port *port)
 {
 	struct saa7164_dvb *dvb = &port->dvb;
 	struct saa7164_dev *dev = port->dev;
 	struct saa7164_buffer *buf;
 	int result, i;

 	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

 	if (port->type != SAA7164_MPEG_DVB)
 		BUG();

 	/* Sanity check that the PCI configuration space is active */
 	if (port->hwcfg.BARLocation == 0) {
 		result = -ENOMEM;
 		printk(KERN_ERR "%s: dvb_register_adapter failed "
 		       "(errno = %d), NO PCI configuration\n",
 			DRIVER_NAME, result);
 		goto fail_adapter;
 	}

 	/* Init and establish defaults */
 	port->hw_streamingparams.bitspersample = 8;
 	port->hw_streamingparams.samplesperline = 188;
 	port->hw_streamingparams.numberoflines =
 		(SAA7164_TS_NUMBER_OF_LINES * 188) / 188;

 	port->hw_streamingparams.pitch = 188;
 	port->hw_streamingparams.linethreshold = 0;
 	port->hw_streamingparams.pagetablelistvirt = 0;
 	port->hw_streamingparams.pagetablelistphys = 0;
 	port->hw_streamingparams.numpagetables = 2 +
 		((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE);

 	port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount;

 	/* Allocate the PCI resources */
 	for (i = 0; i < port->hwcfg.buffercount; i++) {
 		buf = saa7164_buffer_alloc(port,
 			port->hw_streamingparams.numberoflines *
 			port->hw_streamingparams.pitch);

 		if (!buf) {
 			result = -ENOMEM;
 			printk(KERN_ERR "%s: dvb_register_adapter failed "
 			       "(errno = %d), unable to allocate buffers\n",
 				DRIVER_NAME, result);
 			goto fail_adapter;
 		}

 		mutex_lock(&port->dmaqueue_lock);
 		list_add_tail(&buf->list, &port->dmaqueue.list);
 		mutex_unlock(&port->dmaqueue_lock);
 	}

 	/* register adapter */
 	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
 			&dev->pci->dev, adapter_nr);
 	if (result < 0) {
 		printk(KERN_ERR "%s: dvb_register_adapter failed "
 		       "(errno = %d)\n", DRIVER_NAME, result);
 		goto fail_adapter;
 	}
 	dvb->adapter.priv = port;

 	/* register frontend */
 	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 	if (result < 0) {
 		printk(KERN_ERR "%s: dvb_register_frontend failed "
 		       "(errno = %d)\n", DRIVER_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       = port;
 	dvb->demux.filternum  = 256;
 	dvb->demux.feednum    = 256;
 	dvb->demux.start_feed = saa7164_dvb_start_feed;
 	dvb->demux.stop_feed  = saa7164_dvb_stop_feed;
 	result = dvb_dmx_init(&dvb->demux);
 	if (result < 0) {
 		printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
 		       DRIVER_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_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
 		       DRIVER_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_ERR "%s: add_frontend failed "
 		       "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_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_ERR "%s: add_frontend failed "
 		       "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
 		goto fail_fe_mem;
 	}

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

 int saa7164_dvb_unregister(struct saa7164_port *port)
 {
 	struct saa7164_dvb *dvb = &port->dvb;
 	struct saa7164_dev *dev = port->dev;
 	struct saa7164_buffer *b;
 	struct list_head *c, *n;

 	dprintk(DBGLVL_DVB, "%s()\n", __func__);

 	if (port->type != SAA7164_MPEG_DVB)
 		BUG();

 	/* Remove any allocated buffers */
 	mutex_lock(&port->dmaqueue_lock);
 	list_for_each_safe(c, n, &port->dmaqueue.list) {
 		b = list_entry(c, struct saa7164_buffer, list);
 		list_del(c);
 		saa7164_buffer_dealloc(b);
 	}
 	mutex_unlock(&port->dmaqueue_lock);

 	if (dvb->frontend == NULL)
 		return 0;

 	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);
 	return 0;
 }

 /* All the DVB attach calls go here, this function get's modified
  * for each new card.
  */
 int saa7164_dvb_register(struct saa7164_port *port)
 {
 	struct saa7164_dev *dev = port->dev;
 	struct saa7164_dvb *dvb = &port->dvb;
 	struct saa7164_i2c *i2c_bus = NULL;
 	int ret;

 	dprintk(DBGLVL_DVB, "%s()\n", __func__);

 	/* init frontend */
 	switch (dev->board) {
 	case SAA7164_BOARD_HAUPPAUGE_HVR2200:
 	case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
 	case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
 		i2c_bus = &dev->i2c_bus[port->nr + 1];
 		switch (port->nr) {
 		case 0:
 			port->dvb.frontend = dvb_attach(tda10048_attach,
 				&hauppauge_hvr2200_1_config,
 				&i2c_bus->i2c_adap);

 			if (port->dvb.frontend != NULL) {
 				/* TODO: addr is in the card struct */
 				dvb_attach(tda18271_attach, port->dvb.frontend,
 					0xc0 >> 1, &i2c_bus->i2c_adap,
 					&hauppauge_hvr22x0_tuner_config);
 			}

 			break;
 		case 1:
 			port->dvb.frontend = dvb_attach(tda10048_attach,
 				&hauppauge_hvr2200_2_config,
 				&i2c_bus->i2c_adap);

 			if (port->dvb.frontend != NULL) {
 				/* TODO: addr is in the card struct */
 				dvb_attach(tda18271_attach, port->dvb.frontend,
 					0xc0 >> 1, &i2c_bus->i2c_adap,
 					&hauppauge_hvr22x0s_tuner_config);
 			}

 			break;
 		}
 		break;
 	case SAA7164_BOARD_HAUPPAUGE_HVR2250:
 	case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
 	case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
 		i2c_bus = &dev->i2c_bus[port->nr + 1];

 		port->dvb.frontend = dvb_attach(s5h1411_attach,
 			&hauppauge_s5h1411_config,
 			&i2c_bus->i2c_adap);

 		if (port->dvb.frontend != NULL) {
 			if (port->nr == 0) {
 				/* Master TDA18271 */
 				/* TODO: addr is in the card struct */
 				dvb_attach(tda18271_attach, port->dvb.frontend,
 					0xc0 >> 1, &i2c_bus->i2c_adap,
 					&hauppauge_hvr22x0_tuner_config);
 			} else {
 				/* Slave TDA18271 */
 				dvb_attach(tda18271_attach, port->dvb.frontend,
 					0xc0 >> 1, &i2c_bus->i2c_adap,
 					&hauppauge_hvr22x0s_tuner_config);
 			}
 		}

 		break;
 	default:
 		printk(KERN_ERR "%s: The frontend isn't supported\n",
 		       dev->name);
 		break;
 	}
 	if (NULL == dvb->frontend) {
 		printk(KERN_ERR "%s() Frontend initialization failed\n",
 		       __func__);
 		return -1;
 	}

 	/* register everything */
 	ret = dvb_register(port);
 	if (ret < 0) {
 		if (dvb->frontend->ops.release)
 			dvb->frontend->ops.release(dvb->frontend);
 		return ret;
 	}

 	return 0;
 }
	/*
	* Driver for the NXP SAA7164 PCIe bridge
	*
	* Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	*
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	*/

	#include "saa7164.h"

	#include "tda10048.h"
	#include "tda18271.h"
	#include "s5h1411.h"

	#define DRIVER_NAME "saa7164"

	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

	/* addr is in the card struct, get it from there */
	static struct tda10048_config hauppauge_hvr2200_1_config = {
	.demod_address = 0x10 >> 1,
	.output_mode = TDA10048_SERIAL_OUTPUT,
	.fwbulkwritelen = TDA10048_BULKWRITE_200,
	.inversion = TDA10048_INVERSION_ON,
	.dtv6_if_freq_khz = TDA10048_IF_3300,
	.dtv7_if_freq_khz = TDA10048_IF_3500,
	.dtv8_if_freq_khz = TDA10048_IF_4000,
	.clk_freq_khz = TDA10048_CLK_16000,
	};
	static struct tda10048_config hauppauge_hvr2200_2_config = {
	.demod_address = 0x12 >> 1,
	.output_mode = TDA10048_SERIAL_OUTPUT,
	.fwbulkwritelen = TDA10048_BULKWRITE_200,
	.inversion = TDA10048_INVERSION_ON,
	.dtv6_if_freq_khz = TDA10048_IF_3300,
	.dtv7_if_freq_khz = TDA10048_IF_3500,
	.dtv8_if_freq_khz = TDA10048_IF_4000,
	.clk_freq_khz = TDA10048_CLK_16000,
	};

	static struct tda18271_std_map hauppauge_tda18271_std_map = {
	.atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 3,
	.if_lvl = 6, .rfagc_top = 0x37 },
	.qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 0,
	.if_lvl = 6, .rfagc_top = 0x37 },
	};

	static struct tda18271_config hauppauge_hvr22x0_tuner_config = {
	.std_map = &hauppauge_tda18271_std_map,
	.gate = TDA18271_GATE_ANALOG,
	.role = TDA18271_MASTER,
	};

	static struct tda18271_config hauppauge_hvr22x0s_tuner_config = {
	.std_map = &hauppauge_tda18271_std_map,
	.gate = TDA18271_GATE_ANALOG,
	.role = TDA18271_SLAVE,
	.output_opt = TDA18271_OUTPUT_LT_OFF,
	.rf_cal_on_startup = 1
	};

	static struct s5h1411_config hauppauge_s5h1411_config = {
	.output_mode = S5H1411_SERIAL_OUTPUT,
	.gpio = S5H1411_GPIO_ON,
	.qam_if = S5H1411_IF_4000,
	.vsb_if = S5H1411_IF_3250,
	.inversion = S5H1411_INVERSION_ON,
	.status_mode = S5H1411_DEMODLOCKING,
	.mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
	};

	static int saa7164_dvb_stop_port(struct saa7164_port *port)
	{
	struct saa7164_dev *dev = port->dev;
	int ret;

	ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
	if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
	__func__, ret);
	ret = -EIO;
	} else {
	dprintk(DBGLVL_DVB, "%s() Stopped\n", __func__);
	ret = 0;
	}

	return ret;
	}

	static int saa7164_dvb_acquire_port(struct saa7164_port *port)
	{
	struct saa7164_dev *dev = port->dev;
	int ret;

	ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
	if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
	__func__, ret);
	ret = -EIO;
	} else {
	dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
	ret = 0;
	}

	return ret;
	}

	static int saa7164_dvb_pause_port(struct saa7164_port *port)
	{
	struct saa7164_dev *dev = port->dev;
	int ret;

	ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
	if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
	__func__, ret);
	ret = -EIO;
	} else {
	dprintk(DBGLVL_DVB, "%s() Paused\n", __func__);
	ret = 0;
	}

	return ret;
	}

	/* Firmware is very windows centric, meaning you have to transition
	* the part through AVStream / KS Windows stages, forwards or backwards.
	* States are: stopped, acquired (h/w), paused, started.
	*/
	static int saa7164_dvb_stop_streaming(struct saa7164_port *port)
	{
	struct saa7164_dev *dev = port->dev;
	struct saa7164_buffer *buf;
	struct list_head p, q;
	int ret;

	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

	ret = saa7164_dvb_pause_port(port);
	ret = saa7164_dvb_acquire_port(port);
	ret = saa7164_dvb_stop_port(port);

	/* Mark the hardware buffers as free */
	mutex_lock(&port->dmaqueue_lock);
	list_for_each_safe(p, q, &port->dmaqueue.list) {
	buf = list_entry(p, struct saa7164_buffer, list);
	buf->flags = SAA7164_BUFFER_FREE;
	}
	mutex_unlock(&port->dmaqueue_lock);

	return ret;
	}

	static int saa7164_dvb_start_port(struct saa7164_port *port)
	{
	struct saa7164_dev *dev = port->dev;
	int ret = 0, result;

	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

	saa7164_buffer_cfg_port(port);

	/* Acquire the hardware */
	result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
	__func__, result);

	/* Stop the hardware, regardless */
	result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() acquire/forced stop transition "
	"failed, res = 0x%x\n", __func__, result);
	}
	ret = -EIO;
	goto out;
	} else
	dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);

	/* Pause the hardware */
	result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
	__func__, result);

	/* Stop the hardware, regardless */
	result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() pause/forced stop transition "
	"failed, res = 0x%x\n", __func__, result);
	}

	ret = -EIO;
	goto out;
	} else
	dprintk(DBGLVL_DVB, "%s() Paused\n", __func__);

	/* Start the hardware */
	result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
	__func__, result);

	/* Stop the hardware, regardless */
	result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
	if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
	printk(KERN_ERR "%s() run/forced stop transition "
	"failed, res = 0x%x\n", __func__, result);
	}

	ret = -EIO;
	} else
	dprintk(DBGLVL_DVB, "%s() Running\n", __func__);

	out:
	return ret;
	}

	static int saa7164_dvb_start_feed(struct dvb_demux_feed *feed)
	{
	struct dvb_demux *demux = feed->demux;
	struct saa7164_port port = (struct saa7164_port ) demux->priv;
	struct saa7164_dvb *dvb = &port->dvb;
	struct saa7164_dev *dev = port->dev;
	int ret = 0;

	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

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

	if (dvb) {
	mutex_lock(&dvb->lock);
	if (dvb->feeding++ == 0) {
	/* Start transport */
	ret = saa7164_dvb_start_port(port);
	}
	mutex_unlock(&dvb->lock);
	dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
	__func__, port->nr, dvb->feeding);
	}

	return ret;
	}

	static int saa7164_dvb_stop_feed(struct dvb_demux_feed *feed)
	{
	struct dvb_demux *demux = feed->demux;
	struct saa7164_port port = (struct saa7164_port ) demux->priv;
	struct saa7164_dvb *dvb = &port->dvb;
	struct saa7164_dev *dev = port->dev;
	int ret = 0;

	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

	if (dvb) {
	mutex_lock(&dvb->lock);
	if (--dvb->feeding == 0) {
	/* Stop transport */
	ret = saa7164_dvb_stop_streaming(port);
	}
	mutex_unlock(&dvb->lock);
	dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
	__func__, port->nr, dvb->feeding);
	}

	return ret;
	}

	static int dvb_register(struct saa7164_port *port)
	{
	struct saa7164_dvb *dvb = &port->dvb;
	struct saa7164_dev *dev = port->dev;
	struct saa7164_buffer *buf;
	int result, i;

	dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);

	if (port->type != SAA7164_MPEG_DVB)
	BUG();

	/* Sanity check that the PCI configuration space is active */
	if (port->hwcfg.BARLocation == 0) {
	result = -ENOMEM;
	printk(KERN_ERR "%s: dvb_register_adapter failed "
	"(errno = %d), NO PCI configuration\n",
	DRIVER_NAME, result);
	goto fail_adapter;
	}

	/* Init and establish defaults */
	port->hw_streamingparams.bitspersample = 8;
	port->hw_streamingparams.samplesperline = 188;
	port->hw_streamingparams.numberoflines =
	(SAA7164_TS_NUMBER_OF_LINES * 188) / 188;

	port->hw_streamingparams.pitch = 188;
	port->hw_streamingparams.linethreshold = 0;
	port->hw_streamingparams.pagetablelistvirt = 0;
	port->hw_streamingparams.pagetablelistphys = 0;
	port->hw_streamingparams.numpagetables = 2 +
	((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE);

	port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount;

	/* Allocate the PCI resources */
	for (i = 0; i < port->hwcfg.buffercount; i++) {
	buf = saa7164_buffer_alloc(port,
	port->hw_streamingparams.numberoflines *
	port->hw_streamingparams.pitch);

	if (!buf) {
	result = -ENOMEM;
	printk(KERN_ERR "%s: dvb_register_adapter failed "
	"(errno = %d), unable to allocate buffers\n",
	DRIVER_NAME, result);
	goto fail_adapter;
	}

	mutex_lock(&port->dmaqueue_lock);
	list_add_tail(&buf->list, &port->dmaqueue.list);
	mutex_unlock(&port->dmaqueue_lock);
	}

	/* register adapter */
	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
	&dev->pci->dev, adapter_nr);
	if (result < 0) {
	printk(KERN_ERR "%s: dvb_register_adapter failed "
	"(errno = %d)\n", DRIVER_NAME, result);
	goto fail_adapter;
	}
	dvb->adapter.priv = port;

	/* register frontend */
	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	if (result < 0) {
	printk(KERN_ERR "%s: dvb_register_frontend failed "
	"(errno = %d)\n", DRIVER_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 = port;
	dvb->demux.filternum = 256;
	dvb->demux.feednum = 256;
	dvb->demux.start_feed = saa7164_dvb_start_feed;
	dvb->demux.stop_feed = saa7164_dvb_stop_feed;
	result = dvb_dmx_init(&dvb->demux);
	if (result < 0) {
	printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
	DRIVER_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_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
	DRIVER_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_ERR "%s: add_frontend failed "
	"(DMX_FRONTEND_0, errno = %d)\n", DRIVER_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_ERR "%s: add_frontend failed "
	"(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
	goto fail_fe_mem;
	}

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

	int saa7164_dvb_unregister(struct saa7164_port *port)
	{
	struct saa7164_dvb *dvb = &port->dvb;
	struct saa7164_dev *dev = port->dev;
	struct saa7164_buffer *b;
	struct list_head c, n;

	dprintk(DBGLVL_DVB, "%s()\n", __func__);

	if (port->type != SAA7164_MPEG_DVB)
	BUG();

	/* Remove any allocated buffers */
	mutex_lock(&port->dmaqueue_lock);
	list_for_each_safe(c, n, &port->dmaqueue.list) {
	b = list_entry(c, struct saa7164_buffer, list);
	list_del(c);
	saa7164_buffer_dealloc(b);
	}
	mutex_unlock(&port->dmaqueue_lock);

	if (dvb->frontend == NULL)
	return 0;

	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);
	return 0;
	}

	/* All the DVB attach calls go here, this function get's modified
	* for each new card.
	*/
	int saa7164_dvb_register(struct saa7164_port *port)
	{
	struct saa7164_dev *dev = port->dev;
	struct saa7164_dvb *dvb = &port->dvb;
	struct saa7164_i2c *i2c_bus = NULL;
	int ret;

	dprintk(DBGLVL_DVB, "%s()\n", __func__);

	/* init frontend */
	switch (dev->board) {
	case SAA7164_BOARD_HAUPPAUGE_HVR2200:
	case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
	case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
	i2c_bus = &dev->i2c_bus[port->nr + 1];
	switch (port->nr) {
	case 0:
	port->dvb.frontend = dvb_attach(tda10048_attach,
	&hauppauge_hvr2200_1_config,
	&i2c_bus->i2c_adap);

	if (port->dvb.frontend != NULL) {
	/* TODO: addr is in the card struct */
	dvb_attach(tda18271_attach, port->dvb.frontend,
	0xc0 >> 1, &i2c_bus->i2c_adap,
	&hauppauge_hvr22x0_tuner_config);
	}

	break;
	case 1:
	port->dvb.frontend = dvb_attach(tda10048_attach,
	&hauppauge_hvr2200_2_config,
	&i2c_bus->i2c_adap);

	if (port->dvb.frontend != NULL) {
	/* TODO: addr is in the card struct */
	dvb_attach(tda18271_attach, port->dvb.frontend,
	0xc0 >> 1, &i2c_bus->i2c_adap,
	&hauppauge_hvr22x0s_tuner_config);
	}

	break;
	}
	break;
	case SAA7164_BOARD_HAUPPAUGE_HVR2250:
	case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
	case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
	i2c_bus = &dev->i2c_bus[port->nr + 1];

	port->dvb.frontend = dvb_attach(s5h1411_attach,
	&hauppauge_s5h1411_config,
	&i2c_bus->i2c_adap);

	if (port->dvb.frontend != NULL) {
	if (port->nr == 0) {
	/* Master TDA18271 */
	/* TODO: addr is in the card struct */
	dvb_attach(tda18271_attach, port->dvb.frontend,
	0xc0 >> 1, &i2c_bus->i2c_adap,
	&hauppauge_hvr22x0_tuner_config);
	} else {
	/* Slave TDA18271 */
	dvb_attach(tda18271_attach, port->dvb.frontend,
	0xc0 >> 1, &i2c_bus->i2c_adap,
	&hauppauge_hvr22x0s_tuner_config);
	}
	}

	break;
	default:
	printk(KERN_ERR "%s: The frontend isn't supported\n",
	dev->name);
	break;
	}
	if (NULL == dvb->frontend) {
	printk(KERN_ERR "%s() Frontend initialization failed\n",
	__func__);
	return -1;
	}

	/* register everything */
	ret = dvb_register(port);
	if (ret < 0) {
	if (dvb->frontend->ops.release)
	dvb->frontend->ops.release(dvb->frontend);
	return ret;
	}

	return 0;
	}