[deliverable/linux.git] / drivers / media / usb / au0828 / au0828-dvb.c

/*
 *  Driver for the Auvitek USB bridge
 *
 *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
 *
 *  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 "au0828.h"

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h>
#include <media/v4l2-common.h>
#include <media/tuner.h>

#include "au8522.h"
#include "xc5000.h"
#include "mxl5007t.h"
#include "tda18271.h"

static int preallocate_big_buffers;
module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#define _AU0828_BULKPIPE 0x83
#define _BULKPIPESIZE 0xe522

static u8 hauppauge_hvr950q_led_states[] = {
	0x00, /* off */
	0x02, /* yellow */
	0x04, /* green */
};

static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
	.gpio_output = 0x00e0,
	.gpio_output_enable  = 0x6006,
	.gpio_output_disable = 0x0660,

	.gpio_leds = 0x00e2,
	.led_states  = hauppauge_hvr950q_led_states,
	.num_led_states = sizeof(hauppauge_hvr950q_led_states),

	.vsb8_strong   = 20 /* dB */ * 10,
	.qam64_strong  = 25 /* dB */ * 10,
	.qam256_strong = 32 /* dB */ * 10,
};

static struct au8522_config hauppauge_hvr950q_config = {
	.demod_address = 0x8e >> 1,
	.status_mode   = AU8522_DEMODLOCKING,
	.qam_if        = AU8522_IF_6MHZ,
	.vsb_if        = AU8522_IF_6MHZ,
	.led_cfg       = &hauppauge_hvr950q_led_cfg,
};

static struct au8522_config fusionhdtv7usb_config = {
	.demod_address = 0x8e >> 1,
	.status_mode   = AU8522_DEMODLOCKING,
	.qam_if        = AU8522_IF_6MHZ,
	.vsb_if        = AU8522_IF_6MHZ,
};

static struct au8522_config hauppauge_woodbury_config = {
	.demod_address = 0x8e >> 1,
	.status_mode   = AU8522_DEMODLOCKING,
	.qam_if        = AU8522_IF_4MHZ,
	.vsb_if        = AU8522_IF_3_25MHZ,
};

static struct xc5000_config hauppauge_xc5000a_config = {
	.i2c_address      = 0x61,
	.if_khz           = 6000,
	.chip_id          = XC5000A,
	.output_amp       = 0x8f,
};

static struct xc5000_config hauppauge_xc5000c_config = {
	.i2c_address      = 0x61,
	.if_khz           = 6000,
	.chip_id          = XC5000C,
	.output_amp       = 0x8f,
};

static struct mxl5007t_config mxl5007t_hvr950q_config = {
	.xtal_freq_hz = MxL_XTAL_24_MHZ,
	.if_freq_hz = MxL_IF_6_MHZ,
};

static struct tda18271_config hauppauge_woodbury_tunerconfig = {
	.gate    = TDA18271_GATE_DIGITAL,
};

static void au0828_restart_dvb_streaming(struct work_struct *work);

/*-------------------------------------------------------------------*/
static void urb_completion(struct urb *purb)
{
	struct au0828_dev *dev = purb->context;
	int ptype = usb_pipetype(purb->pipe);
	unsigned char *ptr;

	dprintk(2, "%s: %d\n", __func__, purb->actual_length);

	if (!dev) {
		dprintk(2, "%s: no dev!\n", __func__);
		return;
	}

	if (!dev->urb_streaming) {
		dprintk(2, "%s: not streaming!\n", __func__);
		return;
	}

	if (ptype != PIPE_BULK) {
		pr_err("%s: Unsupported URB type %d\n",
		       __func__, ptype);
		return;
	}

	/* See if the stream is corrupted (to work around a hardware
	   bug where the stream gets misaligned */
	ptr = purb->transfer_buffer;
	if (purb->actual_length > 0 && ptr[0] != 0x47) {
		dprintk(1, "Need to restart streaming %02x len=%d!\n",
			ptr[0], purb->actual_length);
		schedule_work(&dev->restart_streaming);
		return;
	}

	/* Feed the transport payload into the kernel demux */
	dvb_dmx_swfilter_packets(&dev->dvb.demux,
		purb->transfer_buffer, purb->actual_length / 188);

	/* Clean the buffer before we requeue */
	memset(purb->transfer_buffer, 0, URB_BUFSIZE);

	/* Requeue URB */
	usb_submit_urb(purb, GFP_ATOMIC);
}

static int stop_urb_transfer(struct au0828_dev *dev)
{
	int i;

	dprintk(2, "%s()\n", __func__);

	if (!dev->urb_streaming)
		return 0;

	dev->urb_streaming = false;
	for (i = 0; i < URB_COUNT; i++) {
		if (dev->urbs[i]) {
			usb_kill_urb(dev->urbs[i]);
			if (!preallocate_big_buffers)
				kfree(dev->urbs[i]->transfer_buffer);

			usb_free_urb(dev->urbs[i]);
		}
	}

	return 0;
}

static int start_urb_transfer(struct au0828_dev *dev)
{
	struct urb *purb;
	int i, ret;

	dprintk(2, "%s()\n", __func__);

	if (dev->urb_streaming) {
		dprintk(2, "%s: bulk xfer already running!\n", __func__);
		return 0;
	}

	for (i = 0; i < URB_COUNT; i++) {

		dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
		if (!dev->urbs[i])
			return -ENOMEM;

		purb = dev->urbs[i];

		if (preallocate_big_buffers)
			purb->transfer_buffer = dev->dig_transfer_buffer[i];
		else
			purb->transfer_buffer = kzalloc(URB_BUFSIZE,
					GFP_KERNEL);

		if (!purb->transfer_buffer) {
			usb_free_urb(purb);
			dev->urbs[i] = NULL;
			ret = -ENOMEM;
			pr_err("%s: failed big buffer allocation, err = %d\n",
			       __func__, ret);
			return ret;
		}

		purb->status = -EINPROGRESS;
		usb_fill_bulk_urb(purb,
				  dev->usbdev,
				  usb_rcvbulkpipe(dev->usbdev,
					_AU0828_BULKPIPE),
				  purb->transfer_buffer,
				  URB_BUFSIZE,
				  urb_completion,
				  dev);

	}

	for (i = 0; i < URB_COUNT; i++) {
		ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
		if (ret != 0) {
			stop_urb_transfer(dev);
			pr_err("%s: failed urb submission, err = %d\n",
			       __func__, ret);
			return ret;
		}
	}

	dev->urb_streaming = true;
	return 0;
}

static void au0828_start_transport(struct au0828_dev *dev)
{
	au0828_write(dev, 0x608, 0x90);
	au0828_write(dev, 0x609, 0x72);
	au0828_write(dev, 0x60a, 0x71);
	au0828_write(dev, 0x60b, 0x01);

}

static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
{
	if (full_stop) {
		au0828_write(dev, 0x608, 0x00);
		au0828_write(dev, 0x609, 0x00);
		au0828_write(dev, 0x60a, 0x00);
	}
	au0828_write(dev, 0x60b, 0x00);
}

static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
	struct au0828_dvb *dvb = &dev->dvb;
	int ret = 0;

	dprintk(1, "%s()\n", __func__);

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

	if (dvb->frontend) {
		mutex_lock(&dvb->lock);
		dvb->start_count++;
		dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
			dvb->start_count, dvb->stop_count);
		if (dvb->feeding++ == 0) {
			/* Start transport */
			au0828_start_transport(dev);
			ret = start_urb_transfer(dev);
			if (ret < 0) {
				au0828_stop_transport(dev, 0);
				dvb->feeding--;	/* We ran out of memory... */
			}
		}
		mutex_unlock(&dvb->lock);
	}

	return ret;
}

static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
	struct au0828_dvb *dvb = &dev->dvb;
	int ret = 0;

	dprintk(1, "%s()\n", __func__);

	if (dvb->frontend) {
		cancel_work_sync(&dev->restart_streaming);

		mutex_lock(&dvb->lock);
		dvb->stop_count++;
		dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
			dvb->start_count, dvb->stop_count);
		if (dvb->feeding > 0) {
			dvb->feeding--;
			if (dvb->feeding == 0) {
				/* Stop transport */
				ret = stop_urb_transfer(dev);
				au0828_stop_transport(dev, 0);
			}
		}
		mutex_unlock(&dvb->lock);
	}

	return ret;
}

static void au0828_restart_dvb_streaming(struct work_struct *work)
{
	struct au0828_dev *dev = container_of(work, struct au0828_dev,
					      restart_streaming);
	struct au0828_dvb *dvb = &dev->dvb;

	if (!dev->urb_streaming)
		return;

	dprintk(1, "Restarting streaming...!\n");

	mutex_lock(&dvb->lock);

	/* Stop transport */
	stop_urb_transfer(dev);
	au0828_stop_transport(dev, 1);

	/* Start transport */
	au0828_start_transport(dev);
	start_urb_transfer(dev);

	mutex_unlock(&dvb->lock);
}

static int au0828_set_frontend(struct dvb_frontend *fe)
{
	struct au0828_dev *dev = fe->dvb->priv;
	struct au0828_dvb *dvb = &dev->dvb;
	int ret, was_streaming;

	mutex_lock(&dvb->lock);
	was_streaming = dev->urb_streaming;
	if (was_streaming) {
		au0828_stop_transport(dev, 1);

		/*
		 * We can't hold a mutex here, as the restart_streaming
		 * kthread may also hold it.
		 */
		mutex_unlock(&dvb->lock);
		cancel_work_sync(&dev->restart_streaming);
		mutex_lock(&dvb->lock);

		stop_urb_transfer(dev);
	}
	mutex_unlock(&dvb->lock);

	ret = dvb->set_frontend(fe);

	if (was_streaming) {
		mutex_lock(&dvb->lock);
		au0828_start_transport(dev);
		start_urb_transfer(dev);
		mutex_unlock(&dvb->lock);
	}

	return ret;
}

static int dvb_register(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;
	int result;

	dprintk(1, "%s()\n", __func__);

	if (preallocate_big_buffers) {
		int i;
		for (i = 0; i < URB_COUNT; i++) {
			dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
					GFP_KERNEL);

			if (!dev->dig_transfer_buffer[i]) {
				result = -ENOMEM;

				pr_err("failed buffer allocation (errno = %d)\n",
				       result);
				goto fail_adapter;
			}
		}
	}

	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);

	/* register adapter */
	result = dvb_register_adapter(&dvb->adapter,
				      KBUILD_MODNAME, THIS_MODULE,
				      &dev->usbdev->dev, adapter_nr);
	if (result < 0) {
		pr_err("dvb_register_adapter failed (errno = %d)\n",
		       result);
		goto fail_adapter;
	}

#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	dvb->adapter.mdev = dev->media_dev;
#endif

	dvb->adapter.priv = dev;

	/* register frontend */
	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	if (result < 0) {
		pr_err("dvb_register_frontend failed (errno = %d)\n",
		       result);
		goto fail_frontend;
	}

	/* Hook dvb frontend */
	dvb->set_frontend = dvb->frontend->ops.set_frontend;
	dvb->frontend->ops.set_frontend = au0828_set_frontend;

	/* register demux stuff */
	dvb->demux.dmx.capabilities =
		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
		DMX_MEMORY_BASED_FILTERING;
	dvb->demux.priv       = dev;
	dvb->demux.filternum  = 256;
	dvb->demux.feednum    = 256;
	dvb->demux.start_feed = au0828_dvb_start_feed;
	dvb->demux.stop_feed  = au0828_dvb_stop_feed;
	result = dvb_dmx_init(&dvb->demux);
	if (result < 0) {
		pr_err("dvb_dmx_init failed (errno = %d)\n", 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) {
		pr_err("dvb_dmxdev_init failed (errno = %d)\n", 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) {
		pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
		       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) {
		pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
		       result);
		goto fail_fe_mem;
	}

	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	if (result < 0) {
		pr_err("connect_frontend failed (errno = %d)\n", result);
		goto fail_fe_conn;
	}

	/* register network adapter */
	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);

	dvb->start_count = 0;
	dvb->stop_count = 0;

	result = dvb_create_media_graph(&dvb->adapter, false);
	if (result < 0)
		goto fail_create_graph;

	return 0;

fail_create_graph:
	dvb_net_release(&dvb->net);
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:

	if (preallocate_big_buffers) {
		int i;
		for (i = 0; i < URB_COUNT; i++)
			kfree(dev->dig_transfer_buffer[i]);
	}

	return result;
}

void au0828_dvb_unregister(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;

	dprintk(1, "%s()\n", __func__);

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

	cancel_work_sync(&dev->restart_streaming);

	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);

	if (preallocate_big_buffers) {
		int i;
		for (i = 0; i < URB_COUNT; i++)
			kfree(dev->dig_transfer_buffer[i]);
	}
	dvb->frontend = NULL;
}

/* All the DVB attach calls go here, this function get's modified
 * for each new card. No other function in this file needs
 * to change.
 */
int au0828_dvb_register(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;
	int ret;

	dprintk(1, "%s()\n", __func__);

	/* init frontend */
	switch (dev->boardnr) {
	case AU0828_BOARD_HAUPPAUGE_HVR850:
	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
		dvb->frontend = dvb_attach(au8522_attach,
				&hauppauge_hvr950q_config,
				&dev->i2c_adap);
		if (dvb->frontend != NULL)
			switch (dev->board.tuner_type) {
			default:
			case TUNER_XC5000:
				dvb_attach(xc5000_attach, dvb->frontend,
					   &dev->i2c_adap,
					   &hauppauge_xc5000a_config);
				break;
			case TUNER_XC5000C:
				dvb_attach(xc5000_attach, dvb->frontend,
					   &dev->i2c_adap,
					   &hauppauge_xc5000c_config);
				break;
			}
		break;
	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
		dvb->frontend = dvb_attach(au8522_attach,
				&hauppauge_hvr950q_config,
				&dev->i2c_adap);
		if (dvb->frontend != NULL)
			dvb_attach(mxl5007t_attach, dvb->frontend,
				   &dev->i2c_adap, 0x60,
				   &mxl5007t_hvr950q_config);
		break;
	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
		dvb->frontend = dvb_attach(au8522_attach,
				&hauppauge_woodbury_config,
				&dev->i2c_adap);
		if (dvb->frontend != NULL)
			dvb_attach(tda18271_attach, dvb->frontend,
				   0x60, &dev->i2c_adap,
				   &hauppauge_woodbury_tunerconfig);
		break;
	case AU0828_BOARD_DVICO_FUSIONHDTV7:
		dvb->frontend = dvb_attach(au8522_attach,
				&fusionhdtv7usb_config,
				&dev->i2c_adap);
		if (dvb->frontend != NULL) {
			dvb_attach(xc5000_attach, dvb->frontend,
				&dev->i2c_adap,
				&hauppauge_xc5000a_config);
		}
		break;
	default:
		pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
		break;
	}
	if (NULL == dvb->frontend) {
		pr_err("%s() Frontend initialization failed\n",
		       __func__);
		return -1;
	}
	/* define general-purpose callback pointer */
	dvb->frontend->callback = au0828_tuner_callback;

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

	return 0;
}

void au0828_dvb_suspend(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;
	int rc;

	if (dvb->frontend) {
		if (dev->urb_streaming) {
			cancel_work_sync(&dev->restart_streaming);
			/* Stop transport */
			mutex_lock(&dvb->lock);
			stop_urb_transfer(dev);
			au0828_stop_transport(dev, 1);
			mutex_unlock(&dvb->lock);
			dev->need_urb_start = true;
		}
		/* suspend frontend - does tuner and fe to sleep */
		rc = dvb_frontend_suspend(dvb->frontend);
		pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
	}
}

void au0828_dvb_resume(struct au0828_dev *dev)
{
	struct au0828_dvb *dvb = &dev->dvb;
	int rc;

	if (dvb->frontend) {
		/* resume frontend - does fe and tuner init */
		rc = dvb_frontend_resume(dvb->frontend);
		pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
		if (dev->need_urb_start) {
			/* Start transport */
			mutex_lock(&dvb->lock);
			au0828_start_transport(dev);
			start_urb_transfer(dev);
			mutex_unlock(&dvb->lock);
		}
	}
}
Commit	Line	Data
265a6510 ST	1	/*
	2	* Driver for the Auvitek USB bridge
	3	*
6d897616	4	* Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
265a6510 ST	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	*
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	20	*/
	21
83afb32a MCC	22	#include "au0828.h"
83afb32a MCC	23
265a6510	24	#include <linux/module.h>
5a0e3ad6	25	#include <linux/slab.h>
265a6510 ST	26	#include <linux/init.h>
265a6510 ST	27	#include <linux/device.h>
265a6510	28	#include <media/v4l2-common.h>
be183dc3	29	#include <media/tuner.h>
265a6510	30
265a6510 ST	31	#include "au8522.h"
265a6510 ST	32	#include "xc5000.h"
59d27521	33	#include "mxl5007t.h"
8e8bd229	34	#include "tda18271.h"
265a6510	35
793708ff	36	static int preallocate_big_buffers;
f251b3e7 TM	37	module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
	38	MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
	39
265a6510 ST	40	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
265a6510 ST	41
a9c36aad ST	42	#define _AU0828_BULKPIPE 0x83
	43	#define _BULKPIPESIZE 0xe522
	44
adeeac3b MK	45	static u8 hauppauge_hvr950q_led_states[] = {
	46	0x00, /* off */
	47	0x02, /* yellow */
	48	0x04, /* green */
	49	};
	50
	51	static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
	52	.gpio_output = 0x00e0,
	53	.gpio_output_enable = 0x6006,
	54	.gpio_output_disable = 0x0660,
	55
	56	.gpio_leds = 0x00e2,
	57	.led_states = hauppauge_hvr950q_led_states,
	58	.num_led_states = sizeof(hauppauge_hvr950q_led_states),
	59
	60	.vsb8_strong = 20 /* dB / 10,
	61	.qam64_strong = 25 /* dB / 10,
	62	.qam256_strong = 32 /* dB / 10,
	63	};
	64
265a6510 ST	65	static struct au8522_config hauppauge_hvr950q_config = {
	66	.demod_address = 0x8e >> 1,
	67	.status_mode = AU8522_DEMODLOCKING,
e908b6e3 MK	68	.qam_if = AU8522_IF_6MHZ,
e908b6e3 MK	69	.vsb_if = AU8522_IF_6MHZ,
adeeac3b MK	70	.led_cfg = &hauppauge_hvr950q_led_cfg,
	71	};
	72
	73	static struct au8522_config fusionhdtv7usb_config = {
	74	.demod_address = 0x8e >> 1,
	75	.status_mode = AU8522_DEMODLOCKING,
	76	.qam_if = AU8522_IF_6MHZ,
	77	.vsb_if = AU8522_IF_6MHZ,
265a6510 ST	78	};
265a6510 ST	79
8e8bd229 MK	80	static struct au8522_config hauppauge_woodbury_config = {
	81	.demod_address = 0x8e >> 1,
	82	.status_mode = AU8522_DEMODLOCKING,
	83	.qam_if = AU8522_IF_4MHZ,
	84	.vsb_if = AU8522_IF_3_25MHZ,
	85	};
	86
be183dc3	87	static struct xc5000_config hauppauge_xc5000a_config = {
265a6510 ST	88	.i2c_address = 0x61,
265a6510 ST	89	.if_khz = 6000,
be183dc3	90	.chip_id = XC5000A,
52e269b1	91	.output_amp = 0x8f,
be183dc3 MK	92	};
	93
	94	static struct xc5000_config hauppauge_xc5000c_config = {
	95	.i2c_address = 0x61,
	96	.if_khz = 6000,
	97	.chip_id = XC5000C,
52e269b1	98	.output_amp = 0x8f,
265a6510 ST	99	};
265a6510 ST	100
59d27521 MK	101	static struct mxl5007t_config mxl5007t_hvr950q_config = {
	102	.xtal_freq_hz = MxL_XTAL_24_MHZ,
	103	.if_freq_hz = MxL_IF_6_MHZ,
	104	};
	105
8e8bd229 MK	106	static struct tda18271_config hauppauge_woodbury_tunerconfig = {
	107	.gate = TDA18271_GATE_DIGITAL,
	108	};
	109
43f2cccf DH	110	static void au0828_restart_dvb_streaming(struct work_struct *work);
43f2cccf DH	111
265a6510 ST	112	/-------------------------------------------------------------------/
	113	static void urb_completion(struct urb *purb)
	114	{
265a6510 ST	115	struct au0828_dev *dev = purb->context;
265a6510 ST	116	int ptype = usb_pipetype(purb->pipe);
43f2cccf	117	unsigned char *ptr;
265a6510	118
c35fbd03	119	dprintk(2, "%s: %d\n", __func__, purb->actual_length);
bc3c613c	120
c35fbd03 MCC	121	if (!dev) {
c35fbd03 MCC	122	dprintk(2, "%s: no dev!\n", __func__);
9c26de55	123	return;
c35fbd03	124	}
9c26de55	125
2930977a	126	if (!dev->urb_streaming) {
c35fbd03	127	dprintk(2, "%s: not streaming!\n", __func__);
265a6510	128	return;
c35fbd03	129	}
265a6510 ST	130
265a6510 ST	131	if (ptype != PIPE_BULK) {
83afb32a	132	pr_err("%s: Unsupported URB type %d\n",
f07e8e4b	133	__func__, ptype);
265a6510 ST	134	return;
	135	}
	136
43f2cccf DH	137	/* See if the stream is corrupted (to work around a hardware
	138	bug where the stream gets misaligned */
	139	ptr = purb->transfer_buffer;
	140	if (purb->actual_length > 0 && ptr[0] != 0x47) {
	141	dprintk(1, "Need to restart streaming %02x len=%d!\n",
	142	ptr[0], purb->actual_length);
	143	schedule_work(&dev->restart_streaming);
	144	return;
	145	}
	146
265a6510	147	/* Feed the transport payload into the kernel demux */
a9c36aad ST	148	dvb_dmx_swfilter_packets(&dev->dvb.demux,
a9c36aad ST	149	purb->transfer_buffer, purb->actual_length / 188);
265a6510 ST	150
	151	/* Clean the buffer before we requeue */
	152	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
	153
	154	/* Requeue URB */
	155	usb_submit_urb(purb, GFP_ATOMIC);
	156	}
	157
	158	static int stop_urb_transfer(struct au0828_dev *dev)
	159	{
	160	int i;
	161
f07e8e4b	162	dprintk(2, "%s()\n", __func__);
265a6510	163
2930977a MCC	164	if (!dev->urb_streaming)
	165	return 0;
	166
	167	dev->urb_streaming = false;
265a6510	168	for (i = 0; i < URB_COUNT; i++) {
4609981f TM	169	if (dev->urbs[i]) {
4609981f TM	170	usb_kill_urb(dev->urbs[i]);
f251b3e7 TM	171	if (!preallocate_big_buffers)
	172	kfree(dev->urbs[i]->transfer_buffer);
	173
4609981f TM	174	usb_free_urb(dev->urbs[i]);
4609981f TM	175	}
265a6510 ST	176	}
265a6510 ST	177
265a6510 ST	178	return 0;
	179	}
	180
265a6510 ST	181	static int start_urb_transfer(struct au0828_dev *dev)
	182	{
	183	struct urb *purb;
80c1bce9	184	int i, ret;
265a6510	185
f07e8e4b	186	dprintk(2, "%s()\n", __func__);
265a6510 ST	187
265a6510 ST	188	if (dev->urb_streaming) {
53761761	189	dprintk(2, "%s: bulk xfer already running!\n", __func__);
265a6510 ST	190	return 0;
	191	}
	192
	193	for (i = 0; i < URB_COUNT; i++) {
	194
	195	dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
18d73c58	196	if (!dev->urbs[i])
80c1bce9	197	return -ENOMEM;
265a6510 ST	198
	199	purb = dev->urbs[i];
	200
f251b3e7 TM	201	if (preallocate_big_buffers)
	202	purb->transfer_buffer = dev->dig_transfer_buffer[i];
	203	else
	204	purb->transfer_buffer = kzalloc(URB_BUFSIZE,
	205	GFP_KERNEL);
	206
265a6510 ST	207	if (!purb->transfer_buffer) {
265a6510 ST	208	usb_free_urb(purb);
a6a3a17b	209	dev->urbs[i] = NULL;
80c1bce9	210	ret = -ENOMEM;
83afb32a	211	pr_err("%s: failed big buffer allocation, err = %d\n",
4609981f	212	__func__, ret);
80c1bce9	213	return ret;
265a6510 ST	214	}
	215
	216	purb->status = -EINPROGRESS;
	217	usb_fill_bulk_urb(purb,
	218	dev->usbdev,
a8eb912c ST	219	usb_rcvbulkpipe(dev->usbdev,
a8eb912c ST	220	_AU0828_BULKPIPE),
265a6510 ST	221	purb->transfer_buffer,
	222	URB_BUFSIZE,
	223	urb_completion,
	224	dev);
	225
	226	}
	227
	228	for (i = 0; i < URB_COUNT; i++) {
	229	ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
	230	if (ret != 0) {
	231	stop_urb_transfer(dev);
83afb32a MCC	232	pr_err("%s: failed urb submission, err = %d\n",
83afb32a MCC	233	__func__, ret);
265a6510 ST	234	return ret;
	235	}
	236	}
	237
2930977a	238	dev->urb_streaming = true;
80c1bce9	239	return 0;
265a6510 ST	240	}
265a6510 ST	241
4609981f TM	242	static void au0828_start_transport(struct au0828_dev *dev)
	243	{
	244	au0828_write(dev, 0x608, 0x90);
	245	au0828_write(dev, 0x609, 0x72);
	246	au0828_write(dev, 0x60a, 0x71);
	247	au0828_write(dev, 0x60b, 0x01);
	248
	249	}
	250
	251	static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
	252	{
	253	if (full_stop) {
	254	au0828_write(dev, 0x608, 0x00);
	255	au0828_write(dev, 0x609, 0x00);
	256	au0828_write(dev, 0x60a, 0x00);
	257	}
	258	au0828_write(dev, 0x60b, 0x00);
	259	}
	260
265a6510 ST	261	static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
	262	{
	263	struct dvb_demux *demux = feed->demux;
	264	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	265	struct au0828_dvb *dvb = &dev->dvb;
	266	int ret = 0;
	267
f07e8e4b	268	dprintk(1, "%s()\n", __func__);
265a6510 ST	269
	270	if (!demux->dmx.frontend)
	271	return -EINVAL;
	272
bbc62a18	273	if (dvb->frontend) {
265a6510	274	mutex_lock(&dvb->lock);
4609981f TM	275	dvb->start_count++;
	276	dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
	277	dvb->start_count, dvb->stop_count);
265a6510	278	if (dvb->feeding++ == 0) {
bc3c613c	279	/* Start transport */
4609981f	280	au0828_start_transport(dev);
265a6510	281	ret = start_urb_transfer(dev);
4609981f TM	282	if (ret < 0) {
	283	au0828_stop_transport(dev, 0);
	284	dvb->feeding--; /* We ran out of memory... */
	285	}
265a6510 ST	286	}
	287	mutex_unlock(&dvb->lock);
	288	}
	289
	290	return ret;
	291	}
	292
	293	static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
	294	{
	295	struct dvb_demux *demux = feed->demux;
	296	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	297	struct au0828_dvb *dvb = &dev->dvb;
	298	int ret = 0;
	299
f07e8e4b	300	dprintk(1, "%s()\n", __func__);
265a6510	301
bbc62a18	302	if (dvb->frontend) {
f6fef863 MCC	303	cancel_work_sync(&dev->restart_streaming);
f6fef863 MCC	304
265a6510	305	mutex_lock(&dvb->lock);
4609981f TM	306	dvb->stop_count++;
	307	dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
	308	dvb->start_count, dvb->stop_count);
	309	if (dvb->feeding > 0) {
	310	dvb->feeding--;
	311	if (dvb->feeding == 0) {
	312	/* Stop transport */
	313	ret = stop_urb_transfer(dev);
	314	au0828_stop_transport(dev, 0);
	315	}
265a6510 ST	316	}
	317	mutex_unlock(&dvb->lock);
	318	}
	319
	320	return ret;
	321	}
	322
43f2cccf DH	323	static void au0828_restart_dvb_streaming(struct work_struct *work)
	324	{
	325	struct au0828_dev *dev = container_of(work, struct au0828_dev,
	326	restart_streaming);
	327	struct au0828_dvb *dvb = &dev->dvb;
43f2cccf	328
2930977a	329	if (!dev->urb_streaming)
43f2cccf DH	330	return;
	331
	332	dprintk(1, "Restarting streaming...!\n");
	333
	334	mutex_lock(&dvb->lock);
	335
	336	/* Stop transport */
2e7b318f	337	stop_urb_transfer(dev);
4609981f	338	au0828_stop_transport(dev, 1);
43f2cccf DH	339
43f2cccf DH	340	/* Start transport */
4609981f	341	au0828_start_transport(dev);
2e7b318f	342	start_urb_transfer(dev);
43f2cccf DH	343
	344	mutex_unlock(&dvb->lock);
	345	}
	346
f6fef863 MCC	347	static int au0828_set_frontend(struct dvb_frontend *fe)
	348	{
	349	struct au0828_dev *dev = fe->dvb->priv;
	350	struct au0828_dvb *dvb = &dev->dvb;
	351	int ret, was_streaming;
	352
	353	mutex_lock(&dvb->lock);
	354	was_streaming = dev->urb_streaming;
	355	if (was_streaming) {
	356	au0828_stop_transport(dev, 1);
	357
	358	/*
	359	* We can't hold a mutex here, as the restart_streaming
	360	* kthread may also hold it.
	361	*/
	362	mutex_unlock(&dvb->lock);
	363	cancel_work_sync(&dev->restart_streaming);
	364	mutex_lock(&dvb->lock);
	365
	366	stop_urb_transfer(dev);
	367	}
	368	mutex_unlock(&dvb->lock);
	369
	370	ret = dvb->set_frontend(fe);
	371
	372	if (was_streaming) {
	373	mutex_lock(&dvb->lock);
	374	au0828_start_transport(dev);
	375	start_urb_transfer(dev);
	376	mutex_unlock(&dvb->lock);
	377	}
	378
	379	return ret;
	380	}
	381
b33d24c4	382	static int dvb_register(struct au0828_dev *dev)
265a6510 ST	383	{
	384	struct au0828_dvb *dvb = &dev->dvb;
	385	int result;
	386
f07e8e4b	387	dprintk(1, "%s()\n", __func__);
bc3c613c	388
f251b3e7 TM	389	if (preallocate_big_buffers) {
	390	int i;
	391	for (i = 0; i < URB_COUNT; i++) {
	392	dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
	393	GFP_KERNEL);
	394
	395	if (!dev->dig_transfer_buffer[i]) {
	396	result = -ENOMEM;
	397
83afb32a MCC	398	pr_err("failed buffer allocation (errno = %d)\n",
83afb32a MCC	399	result);
f251b3e7 TM	400	goto fail_adapter;
	401	}
	402	}
	403	}
	404
43f2cccf DH	405	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
43f2cccf DH	406
265a6510	407	/* register adapter */
83afb32a MCC	408	result = dvb_register_adapter(&dvb->adapter,
83afb32a MCC	409	KBUILD_MODNAME, THIS_MODULE,
265a6510 ST	410	&dev->usbdev->dev, adapter_nr);
265a6510 ST	411	if (result < 0) {
83afb32a MCC	412	pr_err("dvb_register_adapter failed (errno = %d)\n",
83afb32a MCC	413	result);
265a6510 ST	414	goto fail_adapter;
265a6510 ST	415	}
bed69196 RLLC	416
	417	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	418	dvb->adapter.mdev = dev->media_dev;
	419	#endif
	420
265a6510 ST	421	dvb->adapter.priv = dev;
	422
	423	/* register frontend */
	424	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	425	if (result < 0) {
83afb32a MCC	426	pr_err("dvb_register_frontend failed (errno = %d)\n",
83afb32a MCC	427	result);
265a6510 ST	428	goto fail_frontend;
	429	}
	430
f6fef863 MCC	431	/* Hook dvb frontend */
	432	dvb->set_frontend = dvb->frontend->ops.set_frontend;
	433	dvb->frontend->ops.set_frontend = au0828_set_frontend;
	434
265a6510 ST	435	/* register demux stuff */
	436	dvb->demux.dmx.capabilities =
	437	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	438	DMX_MEMORY_BASED_FILTERING;
	439	dvb->demux.priv = dev;
	440	dvb->demux.filternum = 256;
	441	dvb->demux.feednum = 256;
	442	dvb->demux.start_feed = au0828_dvb_start_feed;
	443	dvb->demux.stop_feed = au0828_dvb_stop_feed;
	444	result = dvb_dmx_init(&dvb->demux);
	445	if (result < 0) {
83afb32a	446	pr_err("dvb_dmx_init failed (errno = %d)\n", result);
265a6510 ST	447	goto fail_dmx;
	448	}
	449
	450	dvb->dmxdev.filternum = 256;
	451	dvb->dmxdev.demux = &dvb->demux.dmx;
	452	dvb->dmxdev.capabilities = 0;
	453	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	454	if (result < 0) {
83afb32a	455	pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
265a6510 ST	456	goto fail_dmxdev;
	457	}
	458
	459	dvb->fe_hw.source = DMX_FRONTEND_0;
	460	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	461	if (result < 0) {
83afb32a MCC	462	pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
83afb32a MCC	463	result);
265a6510 ST	464	goto fail_fe_hw;
	465	}
	466
	467	dvb->fe_mem.source = DMX_MEMORY_FE;
	468	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	469	if (result < 0) {
83afb32a MCC	470	pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
83afb32a MCC	471	result);
265a6510 ST	472	goto fail_fe_mem;
	473	}
	474
	475	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	476	if (result < 0) {
83afb32a	477	pr_err("connect_frontend failed (errno = %d)\n", result);
265a6510 ST	478	goto fail_fe_conn;
	479	}
	480
	481	/* register network adapter */
	482	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
4609981f TM	483
	484	dvb->start_count = 0;
	485	dvb->stop_count = 0;
bed69196	486
0230d60e	487	result = dvb_create_media_graph(&dvb->adapter, false);
0d3ab841 MCC	488	if (result < 0)
0d3ab841 MCC	489	goto fail_create_graph;
bed69196	490
265a6510 ST	491	return 0;
265a6510 ST	492
0d3ab841 MCC	493	fail_create_graph:
0d3ab841 MCC	494	dvb_net_release(&dvb->net);
265a6510 ST	495	fail_fe_conn:
	496	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	497	fail_fe_mem:
	498	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	499	fail_fe_hw:
	500	dvb_dmxdev_release(&dvb->dmxdev);
	501	fail_dmxdev:
	502	dvb_dmx_release(&dvb->demux);
	503	fail_dmx:
	504	dvb_unregister_frontend(dvb->frontend);
	505	fail_frontend:
	506	dvb_frontend_detach(dvb->frontend);
	507	dvb_unregister_adapter(&dvb->adapter);
	508	fail_adapter:
f251b3e7 TM	509
	510	if (preallocate_big_buffers) {
	511	int i;
	512	for (i = 0; i < URB_COUNT; i++)
	513	kfree(dev->dig_transfer_buffer[i]);
	514	}
	515
265a6510 ST	516	return result;
	517	}
	518
	519	void au0828_dvb_unregister(struct au0828_dev *dev)
	520	{
	521	struct au0828_dvb *dvb = &dev->dvb;
	522
f07e8e4b	523	dprintk(1, "%s()\n", __func__);
bc3c613c	524
a9c36aad	525	if (dvb->frontend == NULL)
9c26de55 ST	526	return;
9c26de55 ST	527
d9e091fe CX	528	cancel_work_sync(&dev->restart_streaming);
d9e091fe CX	529
265a6510 ST	530	dvb_net_release(&dvb->net);
	531	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	532	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	533	dvb_dmxdev_release(&dvb->dmxdev);
	534	dvb_dmx_release(&dvb->demux);
	535	dvb_unregister_frontend(dvb->frontend);
	536	dvb_frontend_detach(dvb->frontend);
	537	dvb_unregister_adapter(&dvb->adapter);
f251b3e7 TM	538
	539	if (preallocate_big_buffers) {
	540	int i;
	541	for (i = 0; i < URB_COUNT; i++)
	542	kfree(dev->dig_transfer_buffer[i]);
	543	}
bbc62a18	544	dvb->frontend = NULL;
265a6510 ST	545	}
	546
	547	/* All the DVB attach calls go here, this function get's modified
	548	* for each new card. No other function in this file needs
	549	* to change.
	550	*/
	551	int au0828_dvb_register(struct au0828_dev *dev)
	552	{
	553	struct au0828_dvb *dvb = &dev->dvb;
	554	int ret;
	555
f07e8e4b	556	dprintk(1, "%s()\n", __func__);
bc3c613c	557
265a6510	558	/* init frontend */
f1add5b5	559	switch (dev->boardnr) {
265a6510 ST	560	case AU0828_BOARD_HAUPPAUGE_HVR850:
265a6510 ST	561	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
265a6510 ST	562	dvb->frontend = dvb_attach(au8522_attach,
	563	&hauppauge_hvr950q_config,
	564	&dev->i2c_adap);
48723543	565	if (dvb->frontend != NULL)
be183dc3 MK	566	switch (dev->board.tuner_type) {
	567	default:
	568	case TUNER_XC5000:
	569	dvb_attach(xc5000_attach, dvb->frontend,
	570	&dev->i2c_adap,
	571	&hauppauge_xc5000a_config);
	572	break;
	573	case TUNER_XC5000C:
	574	dvb_attach(xc5000_attach, dvb->frontend,
	575	&dev->i2c_adap,
	576	&hauppauge_xc5000c_config);
	577	break;
	578	}
265a6510	579	break;
59d27521 MK	580	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
	581	dvb->frontend = dvb_attach(au8522_attach,
	582	&hauppauge_hvr950q_config,
	583	&dev->i2c_adap);
	584	if (dvb->frontend != NULL)
	585	dvb_attach(mxl5007t_attach, dvb->frontend,
	586	&dev->i2c_adap, 0x60,
	587	&mxl5007t_hvr950q_config);
	588	break;
8e8bd229 MK	589	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
	590	dvb->frontend = dvb_attach(au8522_attach,
	591	&hauppauge_woodbury_config,
	592	&dev->i2c_adap);
	593	if (dvb->frontend != NULL)
	594	dvb_attach(tda18271_attach, dvb->frontend,
	595	0x60, &dev->i2c_adap,
	596	&hauppauge_woodbury_tunerconfig);
	597	break;
adeeac3b MK	598	case AU0828_BOARD_DVICO_FUSIONHDTV7:
	599	dvb->frontend = dvb_attach(au8522_attach,
	600	&fusionhdtv7usb_config,
	601	&dev->i2c_adap);
	602	if (dvb->frontend != NULL) {
	603	dvb_attach(xc5000_attach, dvb->frontend,
	604	&dev->i2c_adap,
be183dc3	605	&hauppauge_xc5000a_config);
adeeac3b MK	606	}
adeeac3b MK	607	break;
265a6510	608	default:
83afb32a	609	pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
265a6510 ST	610	break;
	611	}
	612	if (NULL == dvb->frontend) {
83afb32a	613	pr_err("%s() Frontend initialization failed\n",
f07e8e4b	614	__func__);
265a6510 ST	615	return -1;
265a6510 ST	616	}
d7cba043 MK	617	/* define general-purpose callback pointer */
d7cba043 MK	618	dvb->frontend->callback = au0828_tuner_callback;
265a6510	619
265a6510 ST	620	/* register everything */
	621	ret = dvb_register(dev);
	622	if (ret < 0) {
	623	if (dvb->frontend->ops.release)
	624	dvb->frontend->ops.release(dvb->frontend);
bbc62a18	625	dvb->frontend = NULL;
265a6510 ST	626	return ret;
	627	}
	628
	629	return 0;
	630	}
b799de75 MCC	631
	632	void au0828_dvb_suspend(struct au0828_dev *dev)
	633	{
	634	struct au0828_dvb *dvb = &dev->dvb;
66cae530	635	int rc;
b799de75	636
66cae530 SK	637	if (dvb->frontend) {
	638	if (dev->urb_streaming) {
	639	cancel_work_sync(&dev->restart_streaming);
	640	/* Stop transport */
	641	mutex_lock(&dvb->lock);
	642	stop_urb_transfer(dev);
	643	au0828_stop_transport(dev, 1);
	644	mutex_unlock(&dvb->lock);
f6b83c3e	645	dev->need_urb_start = true;
66cae530 SK	646	}
	647	/* suspend frontend - does tuner and fe to sleep */
	648	rc = dvb_frontend_suspend(dvb->frontend);
	649	pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
b799de75 MCC	650	}
	651	}
	652
	653	void au0828_dvb_resume(struct au0828_dev *dev)
	654	{
	655	struct au0828_dvb *dvb = &dev->dvb;
66cae530	656	int rc;
b799de75	657
66cae530 SK	658	if (dvb->frontend) {
	659	/* resume frontend - does fe and tuner init */
	660	rc = dvb_frontend_resume(dvb->frontend);
	661	pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
	662	if (dev->need_urb_start) {
	663	/* Start transport */
	664	mutex_lock(&dvb->lock);
	665	au0828_start_transport(dev);
	666	start_urb_transfer(dev);
	667	mutex_unlock(&dvb->lock);
	668	}
b799de75 MCC	669	}
b799de75 MCC	670	}