[thirdparty/kernel/stable.git] / drivers / media / usb / au0828 / au0828-dvb.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Driver for the Auvitek USB bridge
 *
 *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
 */

#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 au0828_bulk_timeout(struct timer_list *t)
{
	struct au0828_dev *dev = from_timer(dev, t, bulk_timeout);

	dprintk(1, "%s called\n", __func__);
	dev->bulk_timeout_running = 0;
	schedule_work(&dev->restart_streaming);
}

/*-------------------------------------------------------------------*/
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;
	} else if (dev->bulk_timeout_running == 1) {
		/* The URB handler has fired, so cancel timer which would
		 * restart endpoint if we hadn't
		 */
		dprintk(1, "%s cancelling bulk timeout\n", __func__);
		dev->bulk_timeout_running = 0;
		del_timer(&dev->bulk_timeout);
	}

	/* 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;

	if (dev->bulk_timeout_running == 1) {
		dev->bulk_timeout_running = 0;
		del_timer(&dev->bulk_timeout);
	}

	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;

	/* If we don't valid data within 1 second, restart stream */
	mod_timer(&dev->bulk_timeout, jiffies + (HZ));
	dev->bulk_timeout_running = 1;

	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 gets 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;
	}

	timer_setup(&dev->bulk_timeout, au0828_bulk_timeout, 0);

	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
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
265a6510 ST	2	/*
	3	* Driver for the Auvitek USB bridge
	4	*
6d897616	5	* Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
265a6510 ST	6	*/
265a6510 ST	7
83afb32a MCC	8	#include "au0828.h"
83afb32a MCC	9
265a6510	10	#include <linux/module.h>
5a0e3ad6	11	#include <linux/slab.h>
265a6510 ST	12	#include <linux/init.h>
265a6510 ST	13	#include <linux/device.h>
265a6510	14	#include <media/v4l2-common.h>
be183dc3	15	#include <media/tuner.h>
265a6510	16
265a6510 ST	17	#include "au8522.h"
265a6510 ST	18	#include "xc5000.h"
59d27521	19	#include "mxl5007t.h"
8e8bd229	20	#include "tda18271.h"
265a6510	21
793708ff	22	static int preallocate_big_buffers;
f251b3e7 TM	23	module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
	24	MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
	25
265a6510 ST	26	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
265a6510 ST	27
a9c36aad ST	28	#define _AU0828_BULKPIPE 0x83
	29	#define _BULKPIPESIZE 0xe522
	30
adeeac3b MK	31	static u8 hauppauge_hvr950q_led_states[] = {
	32	0x00, /* off */
	33	0x02, /* yellow */
	34	0x04, /* green */
	35	};
	36
	37	static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
	38	.gpio_output = 0x00e0,
	39	.gpio_output_enable = 0x6006,
	40	.gpio_output_disable = 0x0660,
	41
	42	.gpio_leds = 0x00e2,
	43	.led_states = hauppauge_hvr950q_led_states,
	44	.num_led_states = sizeof(hauppauge_hvr950q_led_states),
	45
	46	.vsb8_strong = 20 /* dB / 10,
	47	.qam64_strong = 25 /* dB / 10,
	48	.qam256_strong = 32 /* dB / 10,
	49	};
	50
265a6510 ST	51	static struct au8522_config hauppauge_hvr950q_config = {
	52	.demod_address = 0x8e >> 1,
	53	.status_mode = AU8522_DEMODLOCKING,
e908b6e3 MK	54	.qam_if = AU8522_IF_6MHZ,
e908b6e3 MK	55	.vsb_if = AU8522_IF_6MHZ,
adeeac3b MK	56	.led_cfg = &hauppauge_hvr950q_led_cfg,
	57	};
	58
	59	static struct au8522_config fusionhdtv7usb_config = {
	60	.demod_address = 0x8e >> 1,
	61	.status_mode = AU8522_DEMODLOCKING,
	62	.qam_if = AU8522_IF_6MHZ,
	63	.vsb_if = AU8522_IF_6MHZ,
265a6510 ST	64	};
265a6510 ST	65
8e8bd229 MK	66	static struct au8522_config hauppauge_woodbury_config = {
	67	.demod_address = 0x8e >> 1,
	68	.status_mode = AU8522_DEMODLOCKING,
	69	.qam_if = AU8522_IF_4MHZ,
	70	.vsb_if = AU8522_IF_3_25MHZ,
	71	};
	72
be183dc3	73	static struct xc5000_config hauppauge_xc5000a_config = {
265a6510 ST	74	.i2c_address = 0x61,
265a6510 ST	75	.if_khz = 6000,
be183dc3	76	.chip_id = XC5000A,
52e269b1	77	.output_amp = 0x8f,
be183dc3 MK	78	};
	79
	80	static struct xc5000_config hauppauge_xc5000c_config = {
	81	.i2c_address = 0x61,
	82	.if_khz = 6000,
	83	.chip_id = XC5000C,
52e269b1	84	.output_amp = 0x8f,
265a6510 ST	85	};
265a6510 ST	86
59d27521 MK	87	static struct mxl5007t_config mxl5007t_hvr950q_config = {
	88	.xtal_freq_hz = MxL_XTAL_24_MHZ,
	89	.if_freq_hz = MxL_IF_6_MHZ,
	90	};
	91
8e8bd229 MK	92	static struct tda18271_config hauppauge_woodbury_tunerconfig = {
	93	.gate = TDA18271_GATE_DIGITAL,
	94	};
	95
43f2cccf DH	96	static void au0828_restart_dvb_streaming(struct work_struct *work);
43f2cccf DH	97
e99e88a9	98	static void au0828_bulk_timeout(struct timer_list *t)
53460c53	99	{
e99e88a9	100	struct au0828_dev *dev = from_timer(dev, t, bulk_timeout);
53460c53 DH	101
	102	dprintk(1, "%s called\n", __func__);
	103	dev->bulk_timeout_running = 0;
	104	schedule_work(&dev->restart_streaming);
	105	}
	106
265a6510 ST	107	/-------------------------------------------------------------------/
	108	static void urb_completion(struct urb *purb)
	109	{
265a6510 ST	110	struct au0828_dev *dev = purb->context;
265a6510 ST	111	int ptype = usb_pipetype(purb->pipe);
43f2cccf	112	unsigned char *ptr;
265a6510	113
c35fbd03	114	dprintk(2, "%s: %d\n", __func__, purb->actual_length);
bc3c613c	115
c35fbd03 MCC	116	if (!dev) {
c35fbd03 MCC	117	dprintk(2, "%s: no dev!\n", __func__);
9c26de55	118	return;
c35fbd03	119	}
9c26de55	120
2930977a	121	if (!dev->urb_streaming) {
c35fbd03	122	dprintk(2, "%s: not streaming!\n", __func__);
265a6510	123	return;
c35fbd03	124	}
265a6510 ST	125
265a6510 ST	126	if (ptype != PIPE_BULK) {
83afb32a	127	pr_err("%s: Unsupported URB type %d\n",
f07e8e4b	128	__func__, ptype);
265a6510 ST	129	return;
	130	}
	131
43f2cccf DH	132	/* See if the stream is corrupted (to work around a hardware
	133	bug where the stream gets misaligned */
	134	ptr = purb->transfer_buffer;
	135	if (purb->actual_length > 0 && ptr[0] != 0x47) {
	136	dprintk(1, "Need to restart streaming %02x len=%d!\n",
	137	ptr[0], purb->actual_length);
	138	schedule_work(&dev->restart_streaming);
	139	return;
53460c53 DH	140	} else if (dev->bulk_timeout_running == 1) {
	141	/* The URB handler has fired, so cancel timer which would
	142	* restart endpoint if we hadn't
	143	*/
	144	dprintk(1, "%s cancelling bulk timeout\n", __func__);
	145	dev->bulk_timeout_running = 0;
	146	del_timer(&dev->bulk_timeout);
43f2cccf DH	147	}
43f2cccf DH	148
265a6510	149	/* Feed the transport payload into the kernel demux */
a9c36aad ST	150	dvb_dmx_swfilter_packets(&dev->dvb.demux,
a9c36aad ST	151	purb->transfer_buffer, purb->actual_length / 188);
265a6510 ST	152
	153	/* Clean the buffer before we requeue */
	154	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
	155
	156	/* Requeue URB */
	157	usb_submit_urb(purb, GFP_ATOMIC);
	158	}
	159
	160	static int stop_urb_transfer(struct au0828_dev *dev)
	161	{
	162	int i;
	163
f07e8e4b	164	dprintk(2, "%s()\n", __func__);
265a6510	165
2930977a MCC	166	if (!dev->urb_streaming)
	167	return 0;
	168
53460c53 DH	169	if (dev->bulk_timeout_running == 1) {
	170	dev->bulk_timeout_running = 0;
	171	del_timer(&dev->bulk_timeout);
	172	}
	173
2930977a	174	dev->urb_streaming = false;
265a6510	175	for (i = 0; i < URB_COUNT; i++) {
4609981f TM	176	if (dev->urbs[i]) {
4609981f TM	177	usb_kill_urb(dev->urbs[i]);
f251b3e7 TM	178	if (!preallocate_big_buffers)
	179	kfree(dev->urbs[i]->transfer_buffer);
	180
4609981f TM	181	usb_free_urb(dev->urbs[i]);
4609981f TM	182	}
265a6510 ST	183	}
265a6510 ST	184
265a6510 ST	185	return 0;
	186	}
	187
265a6510 ST	188	static int start_urb_transfer(struct au0828_dev *dev)
	189	{
	190	struct urb *purb;
80c1bce9	191	int i, ret;
265a6510	192
f07e8e4b	193	dprintk(2, "%s()\n", __func__);
265a6510 ST	194
265a6510 ST	195	if (dev->urb_streaming) {
53761761	196	dprintk(2, "%s: bulk xfer already running!\n", __func__);
265a6510 ST	197	return 0;
	198	}
	199
	200	for (i = 0; i < URB_COUNT; i++) {
	201
	202	dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
18d73c58	203	if (!dev->urbs[i])
80c1bce9	204	return -ENOMEM;
265a6510 ST	205
	206	purb = dev->urbs[i];
	207
f251b3e7 TM	208	if (preallocate_big_buffers)
	209	purb->transfer_buffer = dev->dig_transfer_buffer[i];
	210	else
	211	purb->transfer_buffer = kzalloc(URB_BUFSIZE,
	212	GFP_KERNEL);
	213
265a6510 ST	214	if (!purb->transfer_buffer) {
265a6510 ST	215	usb_free_urb(purb);
a6a3a17b	216	dev->urbs[i] = NULL;
80c1bce9	217	ret = -ENOMEM;
83afb32a	218	pr_err("%s: failed big buffer allocation, err = %d\n",
4609981f	219	__func__, ret);
80c1bce9	220	return ret;
265a6510 ST	221	}
	222
	223	purb->status = -EINPROGRESS;
	224	usb_fill_bulk_urb(purb,
	225	dev->usbdev,
a8eb912c ST	226	usb_rcvbulkpipe(dev->usbdev,
a8eb912c ST	227	_AU0828_BULKPIPE),
265a6510 ST	228	purb->transfer_buffer,
	229	URB_BUFSIZE,
	230	urb_completion,
	231	dev);
	232
	233	}
	234
	235	for (i = 0; i < URB_COUNT; i++) {
	236	ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
	237	if (ret != 0) {
	238	stop_urb_transfer(dev);
83afb32a MCC	239	pr_err("%s: failed urb submission, err = %d\n",
83afb32a MCC	240	__func__, ret);
265a6510 ST	241	return ret;
	242	}
	243	}
	244
2930977a	245	dev->urb_streaming = true;
53460c53 DH	246
	247	/* If we don't valid data within 1 second, restart stream */
	248	mod_timer(&dev->bulk_timeout, jiffies + (HZ));
	249	dev->bulk_timeout_running = 1;
	250
80c1bce9	251	return 0;
265a6510 ST	252	}
265a6510 ST	253
4609981f TM	254	static void au0828_start_transport(struct au0828_dev *dev)
	255	{
	256	au0828_write(dev, 0x608, 0x90);
	257	au0828_write(dev, 0x609, 0x72);
	258	au0828_write(dev, 0x60a, 0x71);
	259	au0828_write(dev, 0x60b, 0x01);
	260
	261	}
	262
	263	static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
	264	{
	265	if (full_stop) {
	266	au0828_write(dev, 0x608, 0x00);
	267	au0828_write(dev, 0x609, 0x00);
	268	au0828_write(dev, 0x60a, 0x00);
	269	}
	270	au0828_write(dev, 0x60b, 0x00);
	271	}
	272
265a6510 ST	273	static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
	274	{
	275	struct dvb_demux *demux = feed->demux;
	276	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	277	struct au0828_dvb *dvb = &dev->dvb;
	278	int ret = 0;
	279
f07e8e4b	280	dprintk(1, "%s()\n", __func__);
265a6510 ST	281
	282	if (!demux->dmx.frontend)
	283	return -EINVAL;
	284
bbc62a18	285	if (dvb->frontend) {
265a6510	286	mutex_lock(&dvb->lock);
4609981f TM	287	dvb->start_count++;
	288	dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
	289	dvb->start_count, dvb->stop_count);
265a6510	290	if (dvb->feeding++ == 0) {
bc3c613c	291	/* Start transport */
4609981f	292	au0828_start_transport(dev);
265a6510	293	ret = start_urb_transfer(dev);
4609981f TM	294	if (ret < 0) {
	295	au0828_stop_transport(dev, 0);
	296	dvb->feeding--; /* We ran out of memory... */
	297	}
265a6510 ST	298	}
	299	mutex_unlock(&dvb->lock);
	300	}
	301
	302	return ret;
	303	}
	304
	305	static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
	306	{
	307	struct dvb_demux *demux = feed->demux;
	308	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	309	struct au0828_dvb *dvb = &dev->dvb;
	310	int ret = 0;
	311
f07e8e4b	312	dprintk(1, "%s()\n", __func__);
265a6510	313
bbc62a18	314	if (dvb->frontend) {
f6fef863 MCC	315	cancel_work_sync(&dev->restart_streaming);
f6fef863 MCC	316
265a6510	317	mutex_lock(&dvb->lock);
4609981f TM	318	dvb->stop_count++;
	319	dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
	320	dvb->start_count, dvb->stop_count);
	321	if (dvb->feeding > 0) {
	322	dvb->feeding--;
	323	if (dvb->feeding == 0) {
	324	/* Stop transport */
	325	ret = stop_urb_transfer(dev);
	326	au0828_stop_transport(dev, 0);
	327	}
265a6510 ST	328	}
	329	mutex_unlock(&dvb->lock);
	330	}
	331
	332	return ret;
	333	}
	334
43f2cccf DH	335	static void au0828_restart_dvb_streaming(struct work_struct *work)
	336	{
	337	struct au0828_dev *dev = container_of(work, struct au0828_dev,
	338	restart_streaming);
	339	struct au0828_dvb *dvb = &dev->dvb;
43f2cccf	340
2930977a	341	if (!dev->urb_streaming)
43f2cccf DH	342	return;
	343
	344	dprintk(1, "Restarting streaming...!\n");
	345
	346	mutex_lock(&dvb->lock);
	347
	348	/* Stop transport */
2e7b318f	349	stop_urb_transfer(dev);
4609981f	350	au0828_stop_transport(dev, 1);
43f2cccf DH	351
43f2cccf DH	352	/* Start transport */
4609981f	353	au0828_start_transport(dev);
2e7b318f	354	start_urb_transfer(dev);
43f2cccf DH	355
	356	mutex_unlock(&dvb->lock);
	357	}
	358
f6fef863 MCC	359	static int au0828_set_frontend(struct dvb_frontend *fe)
	360	{
	361	struct au0828_dev *dev = fe->dvb->priv;
	362	struct au0828_dvb *dvb = &dev->dvb;
	363	int ret, was_streaming;
	364
	365	mutex_lock(&dvb->lock);
	366	was_streaming = dev->urb_streaming;
	367	if (was_streaming) {
	368	au0828_stop_transport(dev, 1);
	369
	370	/*
	371	* We can't hold a mutex here, as the restart_streaming
	372	* kthread may also hold it.
	373	*/
	374	mutex_unlock(&dvb->lock);
	375	cancel_work_sync(&dev->restart_streaming);
	376	mutex_lock(&dvb->lock);
	377
	378	stop_urb_transfer(dev);
	379	}
	380	mutex_unlock(&dvb->lock);
	381
	382	ret = dvb->set_frontend(fe);
	383
	384	if (was_streaming) {
	385	mutex_lock(&dvb->lock);
	386	au0828_start_transport(dev);
	387	start_urb_transfer(dev);
	388	mutex_unlock(&dvb->lock);
	389	}
	390
	391	return ret;
	392	}
	393
b33d24c4	394	static int dvb_register(struct au0828_dev *dev)
265a6510 ST	395	{
	396	struct au0828_dvb *dvb = &dev->dvb;
	397	int result;
	398
f07e8e4b	399	dprintk(1, "%s()\n", __func__);
bc3c613c	400
f251b3e7 TM	401	if (preallocate_big_buffers) {
	402	int i;
	403	for (i = 0; i < URB_COUNT; i++) {
	404	dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
	405	GFP_KERNEL);
	406
	407	if (!dev->dig_transfer_buffer[i]) {
	408	result = -ENOMEM;
	409
83afb32a MCC	410	pr_err("failed buffer allocation (errno = %d)\n",
83afb32a MCC	411	result);
f251b3e7 TM	412	goto fail_adapter;
	413	}
	414	}
	415	}
	416
43f2cccf DH	417	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
43f2cccf DH	418
265a6510	419	/* register adapter */
83afb32a MCC	420	result = dvb_register_adapter(&dvb->adapter,
83afb32a MCC	421	KBUILD_MODNAME, THIS_MODULE,
265a6510 ST	422	&dev->usbdev->dev, adapter_nr);
265a6510 ST	423	if (result < 0) {
83afb32a MCC	424	pr_err("dvb_register_adapter failed (errno = %d)\n",
83afb32a MCC	425	result);
265a6510 ST	426	goto fail_adapter;
265a6510 ST	427	}
bed69196 RLLC	428
	429	#ifdef CONFIG_MEDIA_CONTROLLER_DVB
	430	dvb->adapter.mdev = dev->media_dev;
	431	#endif
	432
265a6510 ST	433	dvb->adapter.priv = dev;
	434
	435	/* register frontend */
	436	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	437	if (result < 0) {
83afb32a MCC	438	pr_err("dvb_register_frontend failed (errno = %d)\n",
83afb32a MCC	439	result);
265a6510 ST	440	goto fail_frontend;
	441	}
	442
f6fef863 MCC	443	/* Hook dvb frontend */
	444	dvb->set_frontend = dvb->frontend->ops.set_frontend;
	445	dvb->frontend->ops.set_frontend = au0828_set_frontend;
	446
265a6510 ST	447	/* register demux stuff */
	448	dvb->demux.dmx.capabilities =
	449	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	450	DMX_MEMORY_BASED_FILTERING;
	451	dvb->demux.priv = dev;
	452	dvb->demux.filternum = 256;
	453	dvb->demux.feednum = 256;
	454	dvb->demux.start_feed = au0828_dvb_start_feed;
	455	dvb->demux.stop_feed = au0828_dvb_stop_feed;
	456	result = dvb_dmx_init(&dvb->demux);
	457	if (result < 0) {
83afb32a	458	pr_err("dvb_dmx_init failed (errno = %d)\n", result);
265a6510 ST	459	goto fail_dmx;
	460	}
	461
	462	dvb->dmxdev.filternum = 256;
	463	dvb->dmxdev.demux = &dvb->demux.dmx;
	464	dvb->dmxdev.capabilities = 0;
	465	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	466	if (result < 0) {
83afb32a	467	pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
265a6510 ST	468	goto fail_dmxdev;
	469	}
	470
	471	dvb->fe_hw.source = DMX_FRONTEND_0;
	472	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	473	if (result < 0) {
83afb32a MCC	474	pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
83afb32a MCC	475	result);
265a6510 ST	476	goto fail_fe_hw;
	477	}
	478
	479	dvb->fe_mem.source = DMX_MEMORY_FE;
	480	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	481	if (result < 0) {
83afb32a MCC	482	pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
83afb32a MCC	483	result);
265a6510 ST	484	goto fail_fe_mem;
	485	}
	486
	487	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	488	if (result < 0) {
83afb32a	489	pr_err("connect_frontend failed (errno = %d)\n", result);
265a6510 ST	490	goto fail_fe_conn;
	491	}
	492
	493	/* register network adapter */
	494	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
4609981f TM	495
	496	dvb->start_count = 0;
	497	dvb->stop_count = 0;
bed69196	498
0230d60e	499	result = dvb_create_media_graph(&dvb->adapter, false);
0d3ab841 MCC	500	if (result < 0)
0d3ab841 MCC	501	goto fail_create_graph;
bed69196	502
265a6510 ST	503	return 0;
265a6510 ST	504
0d3ab841 MCC	505	fail_create_graph:
0d3ab841 MCC	506	dvb_net_release(&dvb->net);
265a6510 ST	507	fail_fe_conn:
	508	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	509	fail_fe_mem:
	510	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	511	fail_fe_hw:
	512	dvb_dmxdev_release(&dvb->dmxdev);
	513	fail_dmxdev:
	514	dvb_dmx_release(&dvb->demux);
	515	fail_dmx:
	516	dvb_unregister_frontend(dvb->frontend);
	517	fail_frontend:
	518	dvb_frontend_detach(dvb->frontend);
	519	dvb_unregister_adapter(&dvb->adapter);
	520	fail_adapter:
f251b3e7 TM	521
	522	if (preallocate_big_buffers) {
	523	int i;
	524	for (i = 0; i < URB_COUNT; i++)
	525	kfree(dev->dig_transfer_buffer[i]);
	526	}
	527
265a6510 ST	528	return result;
	529	}
	530
	531	void au0828_dvb_unregister(struct au0828_dev *dev)
	532	{
	533	struct au0828_dvb *dvb = &dev->dvb;
	534
f07e8e4b	535	dprintk(1, "%s()\n", __func__);
bc3c613c	536
a9c36aad	537	if (dvb->frontend == NULL)
9c26de55 ST	538	return;
9c26de55 ST	539
d9e091fe CX	540	cancel_work_sync(&dev->restart_streaming);
d9e091fe CX	541
265a6510 ST	542	dvb_net_release(&dvb->net);
	543	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	544	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	545	dvb_dmxdev_release(&dvb->dmxdev);
	546	dvb_dmx_release(&dvb->demux);
	547	dvb_unregister_frontend(dvb->frontend);
	548	dvb_frontend_detach(dvb->frontend);
	549	dvb_unregister_adapter(&dvb->adapter);
f251b3e7 TM	550
	551	if (preallocate_big_buffers) {
	552	int i;
	553	for (i = 0; i < URB_COUNT; i++)
	554	kfree(dev->dig_transfer_buffer[i]);
	555	}
bbc62a18	556	dvb->frontend = NULL;
265a6510 ST	557	}
265a6510 ST	558
26b19005	559	/* All the DVB attach calls go here, this function gets modified
265a6510 ST	560	* for each new card. No other function in this file needs
	561	* to change.
	562	*/
	563	int au0828_dvb_register(struct au0828_dev *dev)
	564	{
	565	struct au0828_dvb *dvb = &dev->dvb;
	566	int ret;
	567
f07e8e4b	568	dprintk(1, "%s()\n", __func__);
bc3c613c	569
265a6510	570	/* init frontend */
f1add5b5	571	switch (dev->boardnr) {
265a6510 ST	572	case AU0828_BOARD_HAUPPAUGE_HVR850:
265a6510 ST	573	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
265a6510 ST	574	dvb->frontend = dvb_attach(au8522_attach,
	575	&hauppauge_hvr950q_config,
	576	&dev->i2c_adap);
48723543	577	if (dvb->frontend != NULL)
be183dc3 MK	578	switch (dev->board.tuner_type) {
	579	default:
	580	case TUNER_XC5000:
	581	dvb_attach(xc5000_attach, dvb->frontend,
	582	&dev->i2c_adap,
	583	&hauppauge_xc5000a_config);
	584	break;
	585	case TUNER_XC5000C:
	586	dvb_attach(xc5000_attach, dvb->frontend,
	587	&dev->i2c_adap,
	588	&hauppauge_xc5000c_config);
	589	break;
	590	}
265a6510	591	break;
59d27521 MK	592	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
	593	dvb->frontend = dvb_attach(au8522_attach,
	594	&hauppauge_hvr950q_config,
	595	&dev->i2c_adap);
	596	if (dvb->frontend != NULL)
	597	dvb_attach(mxl5007t_attach, dvb->frontend,
	598	&dev->i2c_adap, 0x60,
	599	&mxl5007t_hvr950q_config);
	600	break;
8e8bd229 MK	601	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
	602	dvb->frontend = dvb_attach(au8522_attach,
	603	&hauppauge_woodbury_config,
	604	&dev->i2c_adap);
	605	if (dvb->frontend != NULL)
	606	dvb_attach(tda18271_attach, dvb->frontend,
	607	0x60, &dev->i2c_adap,
	608	&hauppauge_woodbury_tunerconfig);
	609	break;
adeeac3b MK	610	case AU0828_BOARD_DVICO_FUSIONHDTV7:
	611	dvb->frontend = dvb_attach(au8522_attach,
	612	&fusionhdtv7usb_config,
	613	&dev->i2c_adap);
	614	if (dvb->frontend != NULL) {
	615	dvb_attach(xc5000_attach, dvb->frontend,
	616	&dev->i2c_adap,
be183dc3	617	&hauppauge_xc5000a_config);
adeeac3b MK	618	}
adeeac3b MK	619	break;
265a6510	620	default:
83afb32a	621	pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
265a6510 ST	622	break;
	623	}
	624	if (NULL == dvb->frontend) {
83afb32a	625	pr_err("%s() Frontend initialization failed\n",
f07e8e4b	626	__func__);
265a6510 ST	627	return -1;
265a6510 ST	628	}
d7cba043 MK	629	/* define general-purpose callback pointer */
d7cba043 MK	630	dvb->frontend->callback = au0828_tuner_callback;
265a6510	631
265a6510 ST	632	/* register everything */
	633	ret = dvb_register(dev);
	634	if (ret < 0) {
	635	if (dvb->frontend->ops.release)
	636	dvb->frontend->ops.release(dvb->frontend);
bbc62a18	637	dvb->frontend = NULL;
265a6510 ST	638	return ret;
	639	}
	640
e99e88a9	641	timer_setup(&dev->bulk_timeout, au0828_bulk_timeout, 0);
53460c53	642
265a6510 ST	643	return 0;
265a6510 ST	644	}
b799de75 MCC	645
	646	void au0828_dvb_suspend(struct au0828_dev *dev)
	647	{
	648	struct au0828_dvb *dvb = &dev->dvb;
66cae530	649	int rc;
b799de75	650
66cae530 SK	651	if (dvb->frontend) {
	652	if (dev->urb_streaming) {
	653	cancel_work_sync(&dev->restart_streaming);
	654	/* Stop transport */
	655	mutex_lock(&dvb->lock);
	656	stop_urb_transfer(dev);
	657	au0828_stop_transport(dev, 1);
	658	mutex_unlock(&dvb->lock);
f6b83c3e	659	dev->need_urb_start = true;
66cae530 SK	660	}
	661	/* suspend frontend - does tuner and fe to sleep */
	662	rc = dvb_frontend_suspend(dvb->frontend);
	663	pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
b799de75 MCC	664	}
	665	}
	666
	667	void au0828_dvb_resume(struct au0828_dev *dev)
	668	{
	669	struct au0828_dvb *dvb = &dev->dvb;
66cae530	670	int rc;
b799de75	671
66cae530 SK	672	if (dvb->frontend) {
	673	/* resume frontend - does fe and tuner init */
	674	rc = dvb_frontend_resume(dvb->frontend);
	675	pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
	676	if (dev->need_urb_start) {
	677	/* Start transport */
	678	mutex_lock(&dvb->lock);
	679	au0828_start_transport(dev);
	680	start_urb_transfer(dev);
	681	mutex_unlock(&dvb->lock);
	682	}
b799de75 MCC	683	}
b799de75 MCC	684	}