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

#include "au0828.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,
};

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

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 == 0) {
		dprintk(2, "%s: not streaming!\n", __func__);
		return;
	}

	if (ptype != PIPE_BULK) {
		printk(KERN_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__);

	dev->urb_streaming = 0;
	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 = -ENOMEM;

	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])
			goto err;

		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;
			printk(KERN_ERR
			       "%s: failed big buffer allocation, err = %d\n",
			       __func__, ret);
			goto err;
		}

		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);
			printk(KERN_ERR "%s: failed urb submission, "
			       "err = %d\n", __func__, ret);
			return ret;
		}
	}

	dev->urb_streaming = 1;
	ret = 0;

err:
	return ret;
}

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) {
		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) {
		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 == 0)
		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;

				printk(KERN_ERR
				       "%s: failed buffer allocation (errno = %d)\n",
				       DRIVER_NAME, result);
				goto fail_adapter;
			}
		}
	}

	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);

	/* register adapter */
	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
				      &dev->usbdev->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 = dev;

	/* 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;
	}

	/* 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) {
		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);

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

	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]);
	}


}

/* 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:
		printk(KERN_WARNING "The frontend of your DVB/ATSC card "
		       "isn't supported yet\n");
		break;
	}
	if (NULL == dvb->frontend) {
		printk(KERN_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);
		return ret;
	}

	return 0;
}
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
	22	#include <linux/module.h>
5a0e3ad6	23	#include <linux/slab.h>
265a6510 ST	24	#include <linux/init.h>
	25	#include <linux/device.h>
	26	#include <linux/suspend.h>
	27	#include <media/v4l2-common.h>
be183dc3	28	#include <media/tuner.h>
265a6510 ST	29
265a6510 ST	30	#include "au0828.h"
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 MK	90	.chip_id = XC5000A,
	91	};
	92
	93	static struct xc5000_config hauppauge_xc5000c_config = {
	94	.i2c_address = 0x61,
	95	.if_khz = 6000,
	96	.chip_id = XC5000C,
265a6510 ST	97	};
265a6510 ST	98
59d27521 MK	99	static struct mxl5007t_config mxl5007t_hvr950q_config = {
	100	.xtal_freq_hz = MxL_XTAL_24_MHZ,
	101	.if_freq_hz = MxL_IF_6_MHZ,
	102	};
	103
8e8bd229 MK	104	static struct tda18271_config hauppauge_woodbury_tunerconfig = {
	105	.gate = TDA18271_GATE_DIGITAL,
	106	};
	107
43f2cccf DH	108	static void au0828_restart_dvb_streaming(struct work_struct *work);
43f2cccf DH	109
265a6510 ST	110	/-------------------------------------------------------------------/
	111	static void urb_completion(struct urb *purb)
	112	{
265a6510 ST	113	struct au0828_dev *dev = purb->context;
265a6510 ST	114	int ptype = usb_pipetype(purb->pipe);
43f2cccf	115	unsigned char *ptr;
265a6510	116
c35fbd03	117	dprintk(2, "%s: %d\n", __func__, purb->actual_length);
bc3c613c	118
c35fbd03 MCC	119	if (!dev) {
c35fbd03 MCC	120	dprintk(2, "%s: no dev!\n", __func__);
9c26de55	121	return;
c35fbd03	122	}
9c26de55	123
c35fbd03 MCC	124	if (dev->urb_streaming == 0) {
c35fbd03 MCC	125	dprintk(2, "%s: not streaming!\n", __func__);
265a6510	126	return;
c35fbd03	127	}
265a6510 ST	128
265a6510 ST	129	if (ptype != PIPE_BULK) {
c35fbd03	130	printk(KERN_ERR "%s: Unsupported URB type %d\n",
f07e8e4b	131	__func__, ptype);
265a6510 ST	132	return;
	133	}
	134
43f2cccf DH	135	/* See if the stream is corrupted (to work around a hardware
	136	bug where the stream gets misaligned */
	137	ptr = purb->transfer_buffer;
	138	if (purb->actual_length > 0 && ptr[0] != 0x47) {
	139	dprintk(1, "Need to restart streaming %02x len=%d!\n",
	140	ptr[0], purb->actual_length);
	141	schedule_work(&dev->restart_streaming);
	142	return;
	143	}
	144
265a6510	145	/* Feed the transport payload into the kernel demux */
a9c36aad ST	146	dvb_dmx_swfilter_packets(&dev->dvb.demux,
a9c36aad ST	147	purb->transfer_buffer, purb->actual_length / 188);
265a6510 ST	148
	149	/* Clean the buffer before we requeue */
	150	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
	151
	152	/* Requeue URB */
	153	usb_submit_urb(purb, GFP_ATOMIC);
	154	}
	155
	156	static int stop_urb_transfer(struct au0828_dev *dev)
	157	{
	158	int i;
	159
f07e8e4b	160	dprintk(2, "%s()\n", __func__);
265a6510	161
43f2cccf	162	dev->urb_streaming = 0;
265a6510	163	for (i = 0; i < URB_COUNT; i++) {
4609981f TM	164	if (dev->urbs[i]) {
4609981f TM	165	usb_kill_urb(dev->urbs[i]);
f251b3e7 TM	166	if (!preallocate_big_buffers)
	167	kfree(dev->urbs[i]->transfer_buffer);
	168
4609981f TM	169	usb_free_urb(dev->urbs[i]);
4609981f TM	170	}
265a6510 ST	171	}
265a6510 ST	172
265a6510 ST	173	return 0;
	174	}
	175
265a6510 ST	176	static int start_urb_transfer(struct au0828_dev *dev)
	177	{
	178	struct urb *purb;
	179	int i, ret = -ENOMEM;
265a6510	180
f07e8e4b	181	dprintk(2, "%s()\n", __func__);
265a6510 ST	182
265a6510 ST	183	if (dev->urb_streaming) {
53761761	184	dprintk(2, "%s: bulk xfer already running!\n", __func__);
265a6510 ST	185	return 0;
	186	}
	187
	188	for (i = 0; i < URB_COUNT; i++) {
	189
	190	dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
18d73c58	191	if (!dev->urbs[i])
265a6510	192	goto err;
265a6510 ST	193
	194	purb = dev->urbs[i];
	195
f251b3e7 TM	196	if (preallocate_big_buffers)
	197	purb->transfer_buffer = dev->dig_transfer_buffer[i];
	198	else
	199	purb->transfer_buffer = kzalloc(URB_BUFSIZE,
	200	GFP_KERNEL);
	201
265a6510 ST	202	if (!purb->transfer_buffer) {
265a6510 ST	203	usb_free_urb(purb);
a6a3a17b	204	dev->urbs[i] = NULL;
4609981f TM	205	printk(KERN_ERR
	206	"%s: failed big buffer allocation, err = %d\n",
	207	__func__, ret);
265a6510 ST	208	goto err;
	209	}
	210
	211	purb->status = -EINPROGRESS;
	212	usb_fill_bulk_urb(purb,
	213	dev->usbdev,
a8eb912c ST	214	usb_rcvbulkpipe(dev->usbdev,
a8eb912c ST	215	_AU0828_BULKPIPE),
265a6510 ST	216	purb->transfer_buffer,
	217	URB_BUFSIZE,
	218	urb_completion,
	219	dev);
	220
	221	}
	222
	223	for (i = 0; i < URB_COUNT; i++) {
	224	ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
	225	if (ret != 0) {
	226	stop_urb_transfer(dev);
f07e8e4b MK	227	printk(KERN_ERR "%s: failed urb submission, "
f07e8e4b MK	228	"err = %d\n", __func__, ret);
265a6510 ST	229	return ret;
	230	}
	231	}
	232
	233	dev->urb_streaming = 1;
	234	ret = 0;
	235
	236	err:
	237	return ret;
	238	}
	239
4609981f TM	240	static void au0828_start_transport(struct au0828_dev *dev)
	241	{
	242	au0828_write(dev, 0x608, 0x90);
	243	au0828_write(dev, 0x609, 0x72);
	244	au0828_write(dev, 0x60a, 0x71);
	245	au0828_write(dev, 0x60b, 0x01);
	246
	247	}
	248
	249	static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
	250	{
	251	if (full_stop) {
	252	au0828_write(dev, 0x608, 0x00);
	253	au0828_write(dev, 0x609, 0x00);
	254	au0828_write(dev, 0x60a, 0x00);
	255	}
	256	au0828_write(dev, 0x60b, 0x00);
	257	}
	258
265a6510 ST	259	static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
	260	{
	261	struct dvb_demux *demux = feed->demux;
	262	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	263	struct au0828_dvb *dvb = &dev->dvb;
	264	int ret = 0;
	265
f07e8e4b	266	dprintk(1, "%s()\n", __func__);
265a6510 ST	267
	268	if (!demux->dmx.frontend)
	269	return -EINVAL;
	270
265a6510 ST	271	if (dvb) {
265a6510 ST	272	mutex_lock(&dvb->lock);
4609981f TM	273	dvb->start_count++;
	274	dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
	275	dvb->start_count, dvb->stop_count);
265a6510	276	if (dvb->feeding++ == 0) {
bc3c613c	277	/* Start transport */
4609981f	278	au0828_start_transport(dev);
265a6510	279	ret = start_urb_transfer(dev);
4609981f TM	280	if (ret < 0) {
	281	au0828_stop_transport(dev, 0);
	282	dvb->feeding--; /* We ran out of memory... */
	283	}
265a6510 ST	284	}
	285	mutex_unlock(&dvb->lock);
	286	}
	287
	288	return ret;
	289	}
	290
	291	static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
	292	{
	293	struct dvb_demux *demux = feed->demux;
	294	struct au0828_dev dev = (struct au0828_dev ) demux->priv;
	295	struct au0828_dvb *dvb = &dev->dvb;
	296	int ret = 0;
	297
f07e8e4b	298	dprintk(1, "%s()\n", __func__);
265a6510 ST	299
265a6510 ST	300	if (dvb) {
f6fef863 MCC	301	cancel_work_sync(&dev->restart_streaming);
f6fef863 MCC	302
265a6510	303	mutex_lock(&dvb->lock);
4609981f TM	304	dvb->stop_count++;
	305	dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
	306	dvb->start_count, dvb->stop_count);
	307	if (dvb->feeding > 0) {
	308	dvb->feeding--;
	309	if (dvb->feeding == 0) {
	310	/* Stop transport */
	311	ret = stop_urb_transfer(dev);
	312	au0828_stop_transport(dev, 0);
	313	}
265a6510 ST	314	}
	315	mutex_unlock(&dvb->lock);
	316	}
	317
	318	return ret;
	319	}
	320
43f2cccf DH	321	static void au0828_restart_dvb_streaming(struct work_struct *work)
	322	{
	323	struct au0828_dev *dev = container_of(work, struct au0828_dev,
	324	restart_streaming);
	325	struct au0828_dvb *dvb = &dev->dvb;
43f2cccf DH	326
	327	if (dev->urb_streaming == 0)
	328	return;
	329
	330	dprintk(1, "Restarting streaming...!\n");
	331
	332	mutex_lock(&dvb->lock);
	333
	334	/* Stop transport */
2e7b318f	335	stop_urb_transfer(dev);
4609981f	336	au0828_stop_transport(dev, 1);
43f2cccf DH	337
43f2cccf DH	338	/* Start transport */
4609981f	339	au0828_start_transport(dev);
2e7b318f	340	start_urb_transfer(dev);
43f2cccf DH	341
	342	mutex_unlock(&dvb->lock);
	343	}
	344
f6fef863 MCC	345	static int au0828_set_frontend(struct dvb_frontend *fe)
	346	{
	347	struct au0828_dev *dev = fe->dvb->priv;
	348	struct au0828_dvb *dvb = &dev->dvb;
	349	int ret, was_streaming;
	350
	351	mutex_lock(&dvb->lock);
	352	was_streaming = dev->urb_streaming;
	353	if (was_streaming) {
	354	au0828_stop_transport(dev, 1);
	355
	356	/*
	357	* We can't hold a mutex here, as the restart_streaming
	358	* kthread may also hold it.
	359	*/
	360	mutex_unlock(&dvb->lock);
	361	cancel_work_sync(&dev->restart_streaming);
	362	mutex_lock(&dvb->lock);
	363
	364	stop_urb_transfer(dev);
	365	}
	366	mutex_unlock(&dvb->lock);
	367
	368	ret = dvb->set_frontend(fe);
	369
	370	if (was_streaming) {
	371	mutex_lock(&dvb->lock);
	372	au0828_start_transport(dev);
	373	start_urb_transfer(dev);
	374	mutex_unlock(&dvb->lock);
	375	}
	376
	377	return ret;
	378	}
	379
b33d24c4	380	static int dvb_register(struct au0828_dev *dev)
265a6510 ST	381	{
	382	struct au0828_dvb *dvb = &dev->dvb;
	383	int result;
	384
f07e8e4b	385	dprintk(1, "%s()\n", __func__);
bc3c613c	386
f251b3e7 TM	387	if (preallocate_big_buffers) {
	388	int i;
	389	for (i = 0; i < URB_COUNT; i++) {
	390	dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
	391	GFP_KERNEL);
	392
	393	if (!dev->dig_transfer_buffer[i]) {
	394	result = -ENOMEM;
	395
	396	printk(KERN_ERR
	397	"%s: failed buffer allocation (errno = %d)\n",
	398	DRIVER_NAME, result);
	399	goto fail_adapter;
	400	}
	401	}
	402	}
	403
43f2cccf DH	404	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
43f2cccf DH	405
265a6510 ST	406	/* register adapter */
	407	result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
	408	&dev->usbdev->dev, adapter_nr);
	409	if (result < 0) {
f07e8e4b MK	410	printk(KERN_ERR "%s: dvb_register_adapter failed "
f07e8e4b MK	411	"(errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	412	goto fail_adapter;
	413	}
	414	dvb->adapter.priv = dev;
	415
	416	/* register frontend */
	417	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
	418	if (result < 0) {
f07e8e4b MK	419	printk(KERN_ERR "%s: dvb_register_frontend failed "
f07e8e4b MK	420	"(errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	421	goto fail_frontend;
	422	}
	423
f6fef863 MCC	424	/* Hook dvb frontend */
	425	dvb->set_frontend = dvb->frontend->ops.set_frontend;
	426	dvb->frontend->ops.set_frontend = au0828_set_frontend;
	427
265a6510 ST	428	/* register demux stuff */
	429	dvb->demux.dmx.capabilities =
	430	DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	431	DMX_MEMORY_BASED_FILTERING;
	432	dvb->demux.priv = dev;
	433	dvb->demux.filternum = 256;
	434	dvb->demux.feednum = 256;
	435	dvb->demux.start_feed = au0828_dvb_start_feed;
	436	dvb->demux.stop_feed = au0828_dvb_stop_feed;
	437	result = dvb_dmx_init(&dvb->demux);
	438	if (result < 0) {
bc3c613c	439	printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
265a6510 ST	440	DRIVER_NAME, result);
	441	goto fail_dmx;
	442	}
	443
	444	dvb->dmxdev.filternum = 256;
	445	dvb->dmxdev.demux = &dvb->demux.dmx;
	446	dvb->dmxdev.capabilities = 0;
	447	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
	448	if (result < 0) {
bc3c613c	449	printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
265a6510 ST	450	DRIVER_NAME, result);
	451	goto fail_dmxdev;
	452	}
	453
	454	dvb->fe_hw.source = DMX_FRONTEND_0;
	455	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	456	if (result < 0) {
f07e8e4b MK	457	printk(KERN_ERR "%s: add_frontend failed "
f07e8e4b MK	458	"(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	459	goto fail_fe_hw;
	460	}
	461
	462	dvb->fe_mem.source = DMX_MEMORY_FE;
	463	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	464	if (result < 0) {
f07e8e4b MK	465	printk(KERN_ERR "%s: add_frontend failed "
f07e8e4b MK	466	"(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
265a6510 ST	467	goto fail_fe_mem;
	468	}
	469
	470	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	471	if (result < 0) {
bc3c613c	472	printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
265a6510 ST	473	DRIVER_NAME, result);
	474	goto fail_fe_conn;
	475	}
	476
	477	/* register network adapter */
	478	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
4609981f TM	479
	480	dvb->start_count = 0;
	481	dvb->stop_count = 0;
265a6510 ST	482	return 0;
	483
	484	fail_fe_conn:
	485	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	486	fail_fe_mem:
	487	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	488	fail_fe_hw:
	489	dvb_dmxdev_release(&dvb->dmxdev);
	490	fail_dmxdev:
	491	dvb_dmx_release(&dvb->demux);
	492	fail_dmx:
	493	dvb_unregister_frontend(dvb->frontend);
	494	fail_frontend:
	495	dvb_frontend_detach(dvb->frontend);
	496	dvb_unregister_adapter(&dvb->adapter);
	497	fail_adapter:
f251b3e7 TM	498
	499	if (preallocate_big_buffers) {
	500	int i;
	501	for (i = 0; i < URB_COUNT; i++)
	502	kfree(dev->dig_transfer_buffer[i]);
	503	}
	504
265a6510 ST	505	return result;
	506	}
	507
	508	void au0828_dvb_unregister(struct au0828_dev *dev)
	509	{
	510	struct au0828_dvb *dvb = &dev->dvb;
	511
f07e8e4b	512	dprintk(1, "%s()\n", __func__);
bc3c613c	513
a9c36aad	514	if (dvb->frontend == NULL)
9c26de55 ST	515	return;
9c26de55 ST	516
d9e091fe CX	517	cancel_work_sync(&dev->restart_streaming);
d9e091fe CX	518
265a6510 ST	519	dvb_net_release(&dvb->net);
	520	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
	521	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
	522	dvb_dmxdev_release(&dvb->dmxdev);
	523	dvb_dmx_release(&dvb->demux);
	524	dvb_unregister_frontend(dvb->frontend);
	525	dvb_frontend_detach(dvb->frontend);
	526	dvb_unregister_adapter(&dvb->adapter);
f251b3e7 TM	527
	528	if (preallocate_big_buffers) {
	529	int i;
	530	for (i = 0; i < URB_COUNT; i++)
	531	kfree(dev->dig_transfer_buffer[i]);
	532	}
	533
	534
265a6510 ST	535	}
	536
	537	/* All the DVB attach calls go here, this function get's modified
	538	* for each new card. No other function in this file needs
	539	* to change.
	540	*/
	541	int au0828_dvb_register(struct au0828_dev *dev)
	542	{
	543	struct au0828_dvb *dvb = &dev->dvb;
	544	int ret;
	545
f07e8e4b	546	dprintk(1, "%s()\n", __func__);
bc3c613c	547
265a6510	548	/* init frontend */
f1add5b5	549	switch (dev->boardnr) {
265a6510 ST	550	case AU0828_BOARD_HAUPPAUGE_HVR850:
265a6510 ST	551	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
265a6510 ST	552	dvb->frontend = dvb_attach(au8522_attach,
	553	&hauppauge_hvr950q_config,
	554	&dev->i2c_adap);
48723543	555	if (dvb->frontend != NULL)
be183dc3 MK	556	switch (dev->board.tuner_type) {
	557	default:
	558	case TUNER_XC5000:
	559	dvb_attach(xc5000_attach, dvb->frontend,
	560	&dev->i2c_adap,
	561	&hauppauge_xc5000a_config);
	562	break;
	563	case TUNER_XC5000C:
	564	dvb_attach(xc5000_attach, dvb->frontend,
	565	&dev->i2c_adap,
	566	&hauppauge_xc5000c_config);
	567	break;
	568	}
265a6510	569	break;
59d27521 MK	570	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
	571	dvb->frontend = dvb_attach(au8522_attach,
	572	&hauppauge_hvr950q_config,
	573	&dev->i2c_adap);
	574	if (dvb->frontend != NULL)
	575	dvb_attach(mxl5007t_attach, dvb->frontend,
	576	&dev->i2c_adap, 0x60,
	577	&mxl5007t_hvr950q_config);
	578	break;
8e8bd229 MK	579	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
	580	dvb->frontend = dvb_attach(au8522_attach,
	581	&hauppauge_woodbury_config,
	582	&dev->i2c_adap);
	583	if (dvb->frontend != NULL)
	584	dvb_attach(tda18271_attach, dvb->frontend,
	585	0x60, &dev->i2c_adap,
	586	&hauppauge_woodbury_tunerconfig);
	587	break;
adeeac3b MK	588	case AU0828_BOARD_DVICO_FUSIONHDTV7:
	589	dvb->frontend = dvb_attach(au8522_attach,
	590	&fusionhdtv7usb_config,
	591	&dev->i2c_adap);
	592	if (dvb->frontend != NULL) {
	593	dvb_attach(xc5000_attach, dvb->frontend,
	594	&dev->i2c_adap,
be183dc3	595	&hauppauge_xc5000a_config);
adeeac3b MK	596	}
adeeac3b MK	597	break;
265a6510	598	default:
f07e8e4b MK	599	printk(KERN_WARNING "The frontend of your DVB/ATSC card "
f07e8e4b MK	600	"isn't supported yet\n");
265a6510 ST	601	break;
	602	}
	603	if (NULL == dvb->frontend) {
f07e8e4b MK	604	printk(KERN_ERR "%s() Frontend initialization failed\n",
f07e8e4b MK	605	__func__);
265a6510 ST	606	return -1;
265a6510 ST	607	}
d7cba043 MK	608	/* define general-purpose callback pointer */
d7cba043 MK	609	dvb->frontend->callback = au0828_tuner_callback;
265a6510	610
265a6510 ST	611	/* register everything */
	612	ret = dvb_register(dev);
	613	if (ret < 0) {
	614	if (dvb->frontend->ops.release)
	615	dvb->frontend->ops.release(dvb->frontend);
	616	return ret;
	617	}
	618
	619	return 0;
	620	}