Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 965 insertions, 0 deletions

diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c
new file mode 100644
index 00000000000..f1f53976137
--- /dev/null
+++ b/drivers/media/dvb/cinergyT2/cinergyT2.c
@@ -0,0 +1,965 @@
+/*
+ * TerraTec Cinergy Tē/qanu USB2 DVB-T adapter.
+ *
+ * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
+ *		    Holger Waechtler <holger@qanu.de>
+ *
+ *  Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
+ *
+ * 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/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/pci.h>
+#include <linux/input.h>
+#include <linux/dvb/frontend.h>
+
+#include "dmxdev.h"
+#include "dvb_demux.h"
+#include "dvb_net.h"
+
+
+#ifdef CONFIG_DVB_CINERGYT2_TUNING
+	#define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
+	#define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
+	#define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
+	#ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
+		#define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
+		#define ENABLE_RC (1)
+	#endif
+#else
+	#define STREAM_URB_COUNT (32)
+	#define STREAM_BUF_SIZE (512)	/* bytes */
+	#define ENABLE_RC (1)
+	#define RC_QUERY_INTERVAL (100)	/* milliseconds */
+	#define QUERY_INTERVAL (333)	/* milliseconds */
+#endif
+
+#define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
+
+static int debug;
+module_param_named(debug, debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
+
+#define dprintk(level, args...)						\
+do {									\
+	if ((debug & level)) {						\
+		printk("%s: %s(): ", __stringify(KBUILD_MODNAME),	\
+		       __FUNCTION__);					\
+		printk(args); }						\
+} while (0)
+
+enum cinergyt2_ep1_cmd {
+	CINERGYT2_EP1_PID_TABLE_RESET		= 0x01,
+	CINERGYT2_EP1_PID_SETUP			= 0x02,
+	CINERGYT2_EP1_CONTROL_STREAM_TRANSFER	= 0x03,
+	CINERGYT2_EP1_SET_TUNER_PARAMETERS	= 0x04,
+	CINERGYT2_EP1_GET_TUNER_STATUS		= 0x05,
+	CINERGYT2_EP1_START_SCAN		= 0x06,
+	CINERGYT2_EP1_CONTINUE_SCAN		= 0x07,
+	CINERGYT2_EP1_GET_RC_EVENTS		= 0x08,
+	CINERGYT2_EP1_SLEEP_MODE		= 0x09
+};
+
+struct dvbt_set_parameters_msg {
+	uint8_t cmd;
+	uint32_t freq;
+	uint8_t bandwidth;
+	uint16_t tps;
+	uint8_t flags;
+} __attribute__((packed));
+
+struct dvbt_get_status_msg {
+	uint32_t freq;
+	uint8_t bandwidth;
+	uint16_t tps;
+	uint8_t flags;
+	uint16_t gain;
+	uint8_t snr;
+	uint32_t viterbi_error_rate;
+	uint32_t rs_error_rate;
+	uint32_t uncorrected_block_count;
+	uint8_t lock_bits;
+	uint8_t prev_lock_bits;
+} __attribute__((packed));
+
+static struct dvb_frontend_info cinergyt2_fe_info = {
+	.name = DRIVER_NAME,
+	.type = FE_OFDM,
+	.frequency_min = 174000000,
+	.frequency_max = 862000000,
+	.frequency_stepsize = 166667,
+	.caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
+		FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
+		FE_CAN_FEC_AUTO |
+		FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+		FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
+		FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
+};
+
+struct cinergyt2 {
+	struct dvb_demux demux;
+	struct usb_device *udev;
+	struct semaphore sem;
+	struct dvb_adapter *adapter;
+	struct dvb_device *fedev;
+	struct dmxdev dmxdev;
+	struct dvb_net dvbnet;
+
+	int streaming;
+	int sleeping;
+
+	struct dvbt_set_parameters_msg param;
+	struct dvbt_get_status_msg status;
+	struct work_struct query_work;
+
+	wait_queue_head_t poll_wq;
+	int pending_fe_events;
+
+	void *streambuf;
+	dma_addr_t streambuf_dmahandle;
+	struct urb *stream_urb [STREAM_URB_COUNT];
+
+#ifdef ENABLE_RC
+	struct input_dev rc_input_dev;
+	struct work_struct rc_query_work;
+	int rc_input_event;
+#endif
+};
+
+enum {
+	CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
+	CINERGYT2_RC_EVENT_TYPE_NEC  = 0x01,
+	CINERGYT2_RC_EVENT_TYPE_RC5  = 0x02
+};
+
+struct cinergyt2_rc_event {
+	char type;
+	uint32_t value;
+} __attribute__((packed));
+
+static const uint32_t rc_keys [] = {
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xfe01eb04,	KEY_POWER,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xfd02eb04,	KEY_1,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xfc03eb04,	KEY_2,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xfb04eb04,	KEY_3,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xfa05eb04,	KEY_4,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf906eb04,	KEY_5,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf807eb04,	KEY_6,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf708eb04,	KEY_7,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf609eb04,	KEY_8,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf50aeb04,	KEY_9,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf30ceb04,	KEY_0,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf40beb04,	KEY_VIDEO,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf20deb04,	KEY_REFRESH,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf10eeb04,	KEY_SELECT,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xf00feb04,	KEY_EPG,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xef10eb04,	KEY_UP,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xeb14eb04,	KEY_DOWN,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xee11eb04,	KEY_LEFT,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xec13eb04,	KEY_RIGHT,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xed12eb04,	KEY_OK,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xea15eb04,	KEY_TEXT,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe916eb04,	KEY_INFO,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe817eb04,	KEY_RED,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe718eb04,	KEY_GREEN,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe619eb04,	KEY_YELLOW,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe51aeb04,	KEY_BLUE,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe31ceb04,	KEY_VOLUMEUP,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe11eeb04,	KEY_VOLUMEDOWN,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe21deb04,	KEY_MUTE,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe41beb04,	KEY_CHANNELUP,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xe01feb04,	KEY_CHANNELDOWN,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xbf40eb04,	KEY_PAUSE,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xb34ceb04,	KEY_PLAY,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xa758eb04,	KEY_RECORD,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xab54eb04,	KEY_PREVIOUS,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xb748eb04,	KEY_STOP,
+	CINERGYT2_RC_EVENT_TYPE_NEC,	0xa35ceb04,	KEY_NEXT
+};
+
+static int cinergyt2_command (struct cinergyt2 *cinergyt2,
+			      char *send_buf, int send_buf_len,
+			      char *recv_buf, int recv_buf_len)
+{
+	int actual_len;
+	char dummy;
+	int ret;
+
+	ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
+			   send_buf, send_buf_len, &actual_len, 1000);
+
+	if (ret)
+		dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
+
+	if (!recv_buf)
+		recv_buf = &dummy;
+
+	ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
+			   recv_buf, recv_buf_len, &actual_len, 1000);
+
+	if (ret)
+		dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
+
+	return ret ? ret : actual_len;
+}
+
+static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
+{
+	char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
+	cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
+}
+
+static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
+{
+	char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
+	cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
+	cinergyt2->sleeping = sleep;
+}
+
+static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs);
+
+static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
+{
+	int err;
+
+	usb_fill_bulk_urb(urb,
+			  cinergyt2->udev,
+			  usb_rcvbulkpipe(cinergyt2->udev, 0x2),
+			  urb->transfer_buffer,
+			  STREAM_BUF_SIZE,
+			  cinergyt2_stream_irq,
+			  cinergyt2);
+
+	if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
+		dprintk(1, "urb submission failed (err = %i)!\n", err);
+
+	return err;
+}
+
+static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs)
+{
+	struct cinergyt2 *cinergyt2 = urb->context;
+
+	if (urb->actual_length > 0)
+		dvb_dmx_swfilter(&cinergyt2->demux,
+				 urb->transfer_buffer, urb->actual_length);
+
+	if (cinergyt2->streaming)
+		cinergyt2_submit_stream_urb(cinergyt2, urb);
+}
+
+static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
+{
+	int i;
+
+	for (i=0; i<STREAM_URB_COUNT; i++)
+		if (cinergyt2->stream_urb[i])
+			usb_free_urb(cinergyt2->stream_urb[i]);
+
+	pci_free_consistent(NULL, STREAM_URB_COUNT*STREAM_BUF_SIZE,
+			    cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
+}
+
+static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
+{
+	int i;
+
+	cinergyt2->streambuf = pci_alloc_consistent(NULL,
+					      STREAM_URB_COUNT*STREAM_BUF_SIZE,
+					      &cinergyt2->streambuf_dmahandle);
+	if (!cinergyt2->streambuf) {
+		dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
+		return -ENOMEM;
+	}
+
+	memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
+
+	for (i=0; i<STREAM_URB_COUNT; i++) {
+		struct urb *urb;
+
+		if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
+			dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
+			cinergyt2_free_stream_urbs(cinergyt2);
+			return -ENOMEM;
+		}
+
+		urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
+		urb->transfer_buffer_length = STREAM_BUF_SIZE;
+
+		cinergyt2->stream_urb[i] = urb;
+	}
+
+	return 0;
+}
+
+static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
+{
+	int i;
+
+	cinergyt2_control_stream_transfer(cinergyt2, 0);
+
+	for (i=0; i<STREAM_URB_COUNT; i++)
+		if (cinergyt2->stream_urb[i])
+			usb_kill_urb(cinergyt2->stream_urb[i]);
+}
+
+static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
+{
+	int i, err;
+
+	for (i=0; i<STREAM_URB_COUNT; i++) {
+		if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
+			cinergyt2_stop_stream_xfer(cinergyt2);
+			dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
+			return err;
+		}
+	}
+
+	cinergyt2_control_stream_transfer(cinergyt2, 1);
+	return 0;
+}
+
+static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+	struct dvb_demux *demux = dvbdmxfeed->demux;
+	struct cinergyt2 *cinergyt2 = demux->priv;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return -ERESTARTSYS;
+
+	if (cinergyt2->streaming == 0)
+		cinergyt2_start_stream_xfer(cinergyt2);
+
+	cinergyt2->streaming++;
+	up(&cinergyt2->sem);
+	return 0;
+}
+
+static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+	struct dvb_demux *demux = dvbdmxfeed->demux;
+	struct cinergyt2 *cinergyt2 = demux->priv;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return -ERESTARTSYS;
+
+	if (--cinergyt2->streaming == 0)
+		cinergyt2_stop_stream_xfer(cinergyt2);
+
+	up(&cinergyt2->sem);
+	return 0;
+}
+
+/**
+ *  convert linux-dvb frontend parameter set into TPS.
+ *  See ETSI ETS-300744, section 4.6.2, table 9 for details.
+ *
+ *  This function is probably reusable and may better get placed in a support
+ *  library.
+ *
+ *  We replace errornous fields by default TPS fields (the ones with value 0).
+ */
+static uint16_t compute_tps (struct dvb_frontend_parameters *p)
+{
+	struct dvb_ofdm_parameters *op = &p->u.ofdm;
+	uint16_t tps = 0;
+
+	switch (op->code_rate_HP) {
+		case FEC_2_3:
+			tps |= (1 << 7);
+			break;
+		case FEC_3_4:
+			tps |= (2 << 7);
+			break;
+		case FEC_5_6:
+			tps |= (3 << 7);
+			break;
+		case FEC_7_8:
+			tps |= (4 << 7);
+			break;
+		case FEC_1_2:
+		case FEC_AUTO:
+		default:
+			/* tps |= (0 << 7) */;
+	}
+
+	switch (op->code_rate_LP) {
+		case FEC_2_3:
+			tps |= (1 << 4);
+			break;
+		case FEC_3_4:
+			tps |= (2 << 4);
+			break;
+		case FEC_5_6:
+			tps |= (3 << 4);
+			break;
+		case FEC_7_8:
+			tps |= (4 << 4);
+			break;
+		case FEC_1_2:
+		case FEC_AUTO:
+		default:
+			/* tps |= (0 << 4) */;
+	}
+
+	switch (op->constellation) {
+		case QAM_16:
+			tps |= (1 << 13);
+			break;
+		case QAM_64:
+			tps |= (2 << 13);
+			break;
+		case QPSK:
+		default:
+			/* tps |= (0 << 13) */;
+	}
+
+	switch (op->transmission_mode) {
+		case TRANSMISSION_MODE_8K:
+			tps |= (1 << 0);
+			break;
+		case TRANSMISSION_MODE_2K:
+		default:
+			/* tps |= (0 << 0) */;
+	}
+
+	switch (op->guard_interval) {
+		case GUARD_INTERVAL_1_16:
+			tps |= (1 << 2);
+			break;
+		case GUARD_INTERVAL_1_8:
+			tps |= (2 << 2);
+			break;
+		case GUARD_INTERVAL_1_4:
+			tps |= (3 << 2);
+			break;
+		case GUARD_INTERVAL_1_32:
+		default:
+			/* tps |= (0 << 2) */;
+	}
+
+	switch (op->hierarchy_information) {
+		case HIERARCHY_1:
+			tps |= (1 << 10);
+			break;
+		case HIERARCHY_2:
+			tps |= (2 << 10);
+			break;
+		case HIERARCHY_4:
+			tps |= (3 << 10);
+			break;
+		case HIERARCHY_NONE:
+		default:
+			/* tps |= (0 << 10) */;
+	}
+
+	return tps;
+}
+
+static int cinergyt2_open (struct inode *inode, struct file *file)
+{
+	struct dvb_device *dvbdev = file->private_data;
+	struct cinergyt2 *cinergyt2 = dvbdev->priv;
+	int err;
+
+	if ((err = dvb_generic_open(inode, file)))
+		return err;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return -ERESTARTSYS;
+
+	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
+		cinergyt2_sleep(cinergyt2, 0);
+		schedule_delayed_work(&cinergyt2->query_work, HZ/2);
+	}
+
+	up(&cinergyt2->sem);
+	return 0;
+}
+
+static int cinergyt2_release (struct inode *inode, struct file *file)
+{
+	struct dvb_device *dvbdev = file->private_data;
+	struct cinergyt2 *cinergyt2 = dvbdev->priv;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return -ERESTARTSYS;
+
+	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
+		cancel_delayed_work(&cinergyt2->query_work);
+		flush_scheduled_work();
+		cinergyt2_sleep(cinergyt2, 1);
+	}
+
+	up(&cinergyt2->sem);
+
+	return dvb_generic_release(inode, file);
+}
+
+static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
+{
+	struct dvb_device *dvbdev = file->private_data;
+	struct cinergyt2 *cinergyt2 = dvbdev->priv;
+	poll_wait(file, &cinergyt2->poll_wq, wait);
+	return (POLLIN | POLLRDNORM | POLLPRI);
+}
+
+
+static int cinergyt2_ioctl (struct inode *inode, struct file *file,
+		     unsigned cmd, unsigned long arg)
+{
+	struct dvb_device *dvbdev = file->private_data;
+	struct cinergyt2 *cinergyt2 = dvbdev->priv;
+	struct dvbt_get_status_msg *stat = &cinergyt2->status;
+	fe_status_t status = 0;
+
+	switch (cmd) {
+	case FE_GET_INFO:
+		return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
+				    sizeof(struct dvb_frontend_info));
+
+	case FE_READ_STATUS:
+		if (0xffff - le16_to_cpu(stat->gain) > 30)
+			status |= FE_HAS_SIGNAL;
+		if (stat->lock_bits & (1 << 6))
+			status |= FE_HAS_LOCK;
+		if (stat->lock_bits & (1 << 5))
+			status |= FE_HAS_SYNC;
+		if (stat->lock_bits & (1 << 4))
+			status |= FE_HAS_CARRIER;
+		if (stat->lock_bits & (1 << 1))
+			status |= FE_HAS_VITERBI;
+
+		return copy_to_user((void  __user*) arg, &status, sizeof(status));
+
+	case FE_READ_BER:
+		return put_user(le32_to_cpu(stat->viterbi_error_rate),
+				(__u32 __user *) arg);
+
+	case FE_READ_SIGNAL_STRENGTH:
+		return put_user(0xffff - le16_to_cpu(stat->gain),
+				(__u16 __user *) arg);
+
+	case FE_READ_SNR:
+		return put_user((stat->snr << 8) | stat->snr,
+				(__u16 __user *) arg);
+
+	case FE_READ_UNCORRECTED_BLOCKS:
+		/* UNC are already converted to host byte order... */
+		return put_user(stat->uncorrected_block_count,
+				(__u32 __user *) arg);
+
+	case FE_SET_FRONTEND:
+	{
+		struct dvbt_set_parameters_msg *param = &cinergyt2->param;
+		struct dvb_frontend_parameters p;
+		int err;
+
+		if ((file->f_flags & O_ACCMODE) == O_RDONLY)
+			return -EPERM;
+
+		if (copy_from_user(&p, (void  __user*) arg, sizeof(p)))
+			return -EFAULT;
+
+		if (down_interruptible(&cinergyt2->sem))
+			return -ERESTARTSYS;
+
+		param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
+		param->tps = cpu_to_le16(compute_tps(&p));
+		param->freq = cpu_to_le32(p.frequency / 1000);
+		param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
+
+		stat->lock_bits = 0;
+		cinergyt2->pending_fe_events++;
+		wake_up_interruptible(&cinergyt2->poll_wq);
+
+		err = cinergyt2_command(cinergyt2,
+					(char *) param, sizeof(*param),
+					NULL, 0);
+
+		up(&cinergyt2->sem);
+
+		return (err < 0) ? err : 0;
+	}
+
+	case FE_GET_FRONTEND:
+		/**
+		 *  trivial to implement (see struct dvbt_get_status_msg).
+		 *  equivalent to FE_READ ioctls, but needs
+		 *  TPS -> linux-dvb parameter set conversion. Feel free
+		 *  to implement this and send us a patch if you need this
+		 *  functionality.
+		 */
+		break;
+
+	case FE_GET_EVENT:
+	{
+		/**
+		 *  for now we only fill the status field. the parameters
+		 *  are trivial to fill as soon FE_GET_FRONTEND is done.
+		 */
+		struct dvb_frontend_event __user *e = (void __user *) arg;
+		if (cinergyt2->pending_fe_events == 0) {
+			if (file->f_flags & O_NONBLOCK)
+				return -EWOULDBLOCK;
+			wait_event_interruptible(cinergyt2->poll_wq,
+						 cinergyt2->pending_fe_events > 0);
+		}
+		cinergyt2->pending_fe_events = 0;
+		return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
+					(unsigned long) &e->status);
+	}
+
+	default:
+		;
+	}
+
+	return -EINVAL;
+}
+
+static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct dvb_device *dvbdev = file->private_data;
+	struct cinergyt2 *cinergyt2 = dvbdev->priv;
+	int ret = 0;
+
+	lock_kernel();
+
+	if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
+		ret = -EPERM;
+		goto bailout;
+	}
+
+	if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
+		ret = -EINVAL;
+		goto bailout;
+	}
+
+	vma->vm_flags |= (VM_IO | VM_DONTCOPY);
+	vma->vm_file = file;
+
+	ret = remap_pfn_range(vma, vma->vm_start,
+			      virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
+			      vma->vm_end - vma->vm_start,
+			      vma->vm_page_prot) ? -EAGAIN : 0;
+bailout:
+	unlock_kernel();
+	return ret;
+}
+
+static struct file_operations cinergyt2_fops = {
+	.owner          = THIS_MODULE,
+	.ioctl		= cinergyt2_ioctl,
+	.poll           = cinergyt2_poll,
+	.open           = cinergyt2_open,
+	.release        = cinergyt2_release,
+	.mmap		= cinergyt2_mmap
+};
+
+static struct dvb_device cinergyt2_fe_template = {
+	.users = ~0,
+	.writers = 1,
+	.readers = (~0)-1,
+	.fops = &cinergyt2_fops
+};
+
+#ifdef ENABLE_RC
+static void cinergyt2_query_rc (void *data)
+{
+	struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
+	char buf [1] = { CINERGYT2_EP1_GET_RC_EVENTS };
+	struct cinergyt2_rc_event rc_events[12];
+	int n, len;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return;
+
+	len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
+			     (char *) rc_events, sizeof(rc_events));
+
+	for (n=0; len>0 && n<(len/sizeof(rc_events[0])); n++) {
+		int i;
+
+		if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
+		    rc_events[n].value == ~0)
+		{
+			/**
+			 * keyrepeat bit. If we would handle this properly
+			 * we would need to emit down events as long the
+			 * keyrepeat goes, a up event if no further
+			 * repeat bits occur. Would need a timer to implement
+			 * and no other driver does this, so we simply
+			 * emit the last key up/down sequence again.
+			 */
+		} else {
+			cinergyt2->rc_input_event = KEY_MAX;
+			for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3) {
+				if (rc_keys[i+0] == rc_events[n].type &&
+				    rc_keys[i+1] == rc_events[n].value)
+				{
+					cinergyt2->rc_input_event = rc_keys[i+2];
+					break;
+				}
+			}
+		}
+
+		if (cinergyt2->rc_input_event != KEY_MAX) {
+			input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 1);
+			input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 0);
+			input_sync(&cinergyt2->rc_input_dev);
+		}
+	}
+
+	schedule_delayed_work(&cinergyt2->rc_query_work,
+			      msecs_to_jiffies(RC_QUERY_INTERVAL));
+
+	up(&cinergyt2->sem);
+}
+#endif
+
+static void cinergyt2_query (void *data)
+{
+	struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
+	char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
+	struct dvbt_get_status_msg *s = &cinergyt2->status;
+	uint8_t lock_bits;
+	uint32_t unc;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return;
+
+	unc = s->uncorrected_block_count;
+	lock_bits = s->lock_bits;
+
+	cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
+
+	unc += le32_to_cpu(s->uncorrected_block_count);
+	s->uncorrected_block_count = unc;
+
+	if (lock_bits != s->lock_bits) {
+		wake_up_interruptible(&cinergyt2->poll_wq);
+		cinergyt2->pending_fe_events++;
+	}
+
+	schedule_delayed_work(&cinergyt2->query_work,
+			      msecs_to_jiffies(QUERY_INTERVAL));
+
+	up(&cinergyt2->sem);
+}
+
+static int cinergyt2_probe (struct usb_interface *intf,
+		  const struct usb_device_id *id)
+{
+	struct cinergyt2 *cinergyt2;
+	int i, err;
+
+	if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
+		dprintk(1, "out of memory?!?\n");
+		return -ENOMEM;
+	}
+
+	memset (cinergyt2, 0, sizeof (struct cinergyt2));
+	usb_set_intfdata (intf, (void *) cinergyt2);
+
+	init_MUTEX(&cinergyt2->sem);
+	init_waitqueue_head (&cinergyt2->poll_wq);
+	INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
+
+	cinergyt2->udev = interface_to_usbdev(intf);
+	cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
+
+	if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
+		dprintk(1, "unable to allocate stream urbs\n");
+		kfree(cinergyt2);
+		return -ENOMEM;
+	}
+
+	dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
+
+	cinergyt2->demux.priv = cinergyt2;
+	cinergyt2->demux.filternum = 256;
+	cinergyt2->demux.feednum = 256;
+	cinergyt2->demux.start_feed = cinergyt2_start_feed;
+	cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
+	cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
+					    DMX_SECTION_FILTERING |
+					    DMX_MEMORY_BASED_FILTERING;
+
+	if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
+		dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
+		goto bailout;
+	}
+
+	cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
+	cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
+	cinergyt2->dmxdev.capabilities = 0;
+
+	if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, cinergyt2->adapter)) < 0) {
+		dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
+		goto bailout;
+	}
+
+	if (dvb_net_init(cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
+		dprintk(1, "dvb_net_init() failed!\n");
+
+	dvb_register_device(cinergyt2->adapter, &cinergyt2->fedev,
+			    &cinergyt2_fe_template, cinergyt2,
+			    DVB_DEVICE_FRONTEND);
+
+#ifdef ENABLE_RC
+	init_input_dev(&cinergyt2->rc_input_dev);
+
+	cinergyt2->rc_input_dev.evbit[0] = BIT(EV_KEY);
+	cinergyt2->rc_input_dev.keycodesize = sizeof(unsigned char);
+	cinergyt2->rc_input_dev.keycodemax = KEY_MAX;
+	cinergyt2->rc_input_dev.name = DRIVER_NAME " remote control";
+
+	for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3)
+		set_bit(rc_keys[i+2], cinergyt2->rc_input_dev.keybit);
+
+	input_register_device(&cinergyt2->rc_input_dev);
+
+	cinergyt2->rc_input_event = KEY_MAX;
+
+	INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
+	schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
+#endif
+	return 0;
+
+bailout:
+	dvb_dmxdev_release(&cinergyt2->dmxdev);
+	dvb_dmx_release(&cinergyt2->demux);
+	dvb_unregister_adapter (cinergyt2->adapter);
+	cinergyt2_free_stream_urbs (cinergyt2);
+	kfree(cinergyt2);
+	return -ENOMEM;
+}
+
+static void cinergyt2_disconnect (struct usb_interface *intf)
+{
+	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
+
+	if (down_interruptible(&cinergyt2->sem))
+		return;
+
+#ifdef ENABLE_RC
+	cancel_delayed_work(&cinergyt2->rc_query_work);
+	flush_scheduled_work();
+	input_unregister_device(&cinergyt2->rc_input_dev);
+#endif
+
+	cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
+	dvb_net_release(&cinergyt2->dvbnet);
+	dvb_dmxdev_release(&cinergyt2->dmxdev);
+	dvb_dmx_release(&cinergyt2->demux);
+	dvb_unregister_device(cinergyt2->fedev);
+	dvb_unregister_adapter(cinergyt2->adapter);
+
+	cinergyt2_free_stream_urbs(cinergyt2);
+	up(&cinergyt2->sem);
+	kfree(cinergyt2);
+}
+
+static int cinergyt2_suspend (struct usb_interface *intf, u32 state)
+{
+	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
+
+	if (down_interruptible(&cinergyt2->sem))
+		return -ERESTARTSYS;
+
+	if (state > 0) {	/* state 0 seems to mean DEVICE_PM_ON */
+		struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
+#ifdef ENABLE_RC
+		cancel_delayed_work(&cinergyt2->rc_query_work);
+#endif
+		cancel_delayed_work(&cinergyt2->query_work);
+		if (cinergyt2->streaming)
+			cinergyt2_stop_stream_xfer(cinergyt2);
+		flush_scheduled_work();
+		cinergyt2_sleep(cinergyt2, 1);
+	}
+
+	up(&cinergyt2->sem);
+	return 0;
+}
+
+static int cinergyt2_resume (struct usb_interface *intf)
+{
+	struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
+	struct dvbt_set_parameters_msg *param = &cinergyt2->param;
+
+	if (down_interruptible(&cinergyt2->sem))
+		return -ERESTARTSYS;
+
+	if (!cinergyt2->sleeping) {
+		cinergyt2_sleep(cinergyt2, 0);
+		cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
+		if (cinergyt2->streaming)
+			cinergyt2_start_stream_xfer(cinergyt2);
+		schedule_delayed_work(&cinergyt2->query_work, HZ/2);
+	}
+
+#ifdef ENABLE_RC
+	schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
+#endif
+	up(&cinergyt2->sem);
+	return 0;
+}
+
+static const struct usb_device_id cinergyt2_table [] __devinitdata = {
+	{ USB_DEVICE(0x0ccd, 0x0038) },
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(usb, cinergyt2_table);
+
+static struct usb_driver cinergyt2_driver = {
+	.owner	= THIS_MODULE,
+	.name	= "cinergyT2",
+	.probe	= cinergyt2_probe,
+	.disconnect	= cinergyt2_disconnect,
+	.suspend	= cinergyt2_suspend,
+	.resume		= cinergyt2_resume,
+	.id_table	= cinergyt2_table
+};
+
+static int __init cinergyt2_init (void)
+{
+	int err;
+
+	if ((err = usb_register(&cinergyt2_driver)) < 0)
+		dprintk(1, "usb_register() failed! (err %i)\n", err);
+
+	return err;
+}
+
+static void __exit cinergyt2_exit (void)
+{
+	usb_deregister(&cinergyt2_driver);
+}
+
+module_init (cinergyt2_init);
+module_exit (cinergyt2_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
+