Linux-2.6.12-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!

9 files changed, 2780 insertions, 0 deletions

diff --git a/drivers/media/dvb/bt8xx/Kconfig b/drivers/media/dvb/bt8xx/Kconfig
new file mode 100644
index 000000000000..e7d11e0667a8
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/Kconfig
@@ -0,0 +1,19 @@
+config DVB_BT8XX
+	tristate "Nebula/Pinnacle PCTV/Twinhan PCI cards"
+	depends on DVB_CORE && PCI && VIDEO_BT848
+	select DVB_MT352
+	select DVB_SP887X
+	select DVB_NXT6000
+	select DVB_CX24110
+	select DVB_OR51211
+	help
+	  Support for PCI cards based on the Bt8xx PCI bridge. Examples are
+	  the Nebula cards, the Pinnacle PCTV cards, the Twinhan DST cards and
+	  pcHDTV HD2000 cards.
+
+          Since these cards have no MPEG decoder onboard, they transmit
+	  only compressed MPEG data over the PCI bus, so you need
+	  an external software decoder to watch TV on your computer.
+
+	  Say Y if you own such a device and want to use it.
+
diff --git a/drivers/media/dvb/bt8xx/Makefile b/drivers/media/dvb/bt8xx/Makefile
new file mode 100644
index 000000000000..9da8604b9e18
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/Makefile
@@ -0,0 +1,5 @@
+
+obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o dst.o
+
+EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/video -Idrivers/media/dvb/frontends
+
diff --git a/drivers/media/dvb/bt8xx/bt878.c b/drivers/media/dvb/bt8xx/bt878.c
new file mode 100644
index 000000000000..213ff7902024
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/bt878.c
@@ -0,0 +1,588 @@
+/*
+ * bt878.c: part of the driver for the Pinnacle PCTV Sat DVB PCI card
+ *
+ * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@t-online.de>
+ *
+ * large parts based on the bttv driver
+ * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
+ *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
+ * (c) 1999,2000 Gerd Knorr <kraxel@goldbach.in-berlin.de>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ * 
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <linux/ioport.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/kmod.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "bt878.h"
+#include "dst_priv.h"
+
+
+/**************************************/
+/* Miscellaneous utility  definitions */
+/**************************************/
+
+static unsigned int bt878_verbose = 1;
+static unsigned int bt878_debug;
+
+module_param_named(verbose, bt878_verbose, int, 0444);
+MODULE_PARM_DESC(verbose,
+		 "verbose startup messages, default is 1 (yes)");
+module_param_named(debug, bt878_debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
+
+int bt878_num;
+struct bt878 bt878[BT878_MAX];
+
+EXPORT_SYMBOL(bt878_debug);
+EXPORT_SYMBOL(bt878_verbose);
+EXPORT_SYMBOL(bt878_num);
+EXPORT_SYMBOL(bt878);
+
+#define btwrite(dat,adr)    bmtwrite((dat), (bt->bt878_mem+(adr)))
+#define btread(adr)         bmtread(bt->bt878_mem+(adr))
+
+#define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
+#define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
+#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
+
+#if defined(dprintk)
+#undef dprintk
+#endif
+#define dprintk if(bt878_debug) printk
+
+static void bt878_mem_free(struct bt878 *bt)
+{
+	if (bt->buf_cpu) {
+		pci_free_consistent(bt->dev, bt->buf_size, bt->buf_cpu,
+				    bt->buf_dma);
+		bt->buf_cpu = NULL;
+	}
+
+	if (bt->risc_cpu) {
+		pci_free_consistent(bt->dev, bt->risc_size, bt->risc_cpu,
+				    bt->risc_dma);
+		bt->risc_cpu = NULL;
+	}
+}
+
+static int bt878_mem_alloc(struct bt878 *bt)
+{
+	if (!bt->buf_cpu) {
+		bt->buf_size = 128 * 1024;
+
+		bt->buf_cpu =
+		    pci_alloc_consistent(bt->dev, bt->buf_size,
+					 &bt->buf_dma);
+
+		if (!bt->buf_cpu)
+			return -ENOMEM;
+
+		memset(bt->buf_cpu, 0, bt->buf_size);
+	}
+
+	if (!bt->risc_cpu) {
+		bt->risc_size = PAGE_SIZE;
+		bt->risc_cpu =
+		    pci_alloc_consistent(bt->dev, bt->risc_size,
+					 &bt->risc_dma);
+
+		if (!bt->risc_cpu) {
+			bt878_mem_free(bt);
+			return -ENOMEM;
+		}
+
+		memset(bt->risc_cpu, 0, bt->risc_size);
+	}
+
+	return 0;
+}
+
+/* RISC instructions */
+#define RISC_WRITE        	(0x01 << 28)
+#define RISC_JUMP         	(0x07 << 28)
+#define RISC_SYNC         	(0x08 << 28)
+
+/* RISC bits */
+#define RISC_WR_SOL       	(1 << 27)
+#define RISC_WR_EOL       	(1 << 26)
+#define RISC_IRQ          	(1 << 24)
+#define RISC_STATUS(status)	((((~status) & 0x0F) << 20) | ((status & 0x0F) << 16))
+#define RISC_SYNC_RESYNC  	(1 << 15)
+#define RISC_SYNC_FM1     	0x06
+#define RISC_SYNC_VRO     	0x0C
+
+#define RISC_FLUSH()		bt->risc_pos = 0
+#define RISC_INSTR(instr) 	bt->risc_cpu[bt->risc_pos++] = cpu_to_le32(instr)
+
+static int bt878_make_risc(struct bt878 *bt)
+{
+	bt->block_bytes = bt->buf_size >> 4;
+	bt->block_count = 1 << 4;
+	bt->line_bytes = bt->block_bytes;
+	bt->line_count = bt->block_count;
+
+	while (bt->line_bytes > 4095) {
+		bt->line_bytes >>= 1;
+		bt->line_count <<= 1;
+	}
+
+	if (bt->line_count > 255) {
+		printk("bt878: buffer size error!\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+
+static void bt878_risc_program(struct bt878 *bt, u32 op_sync_orin)
+{
+	u32 buf_pos = 0;
+	u32 line;
+
+	RISC_FLUSH();
+	RISC_INSTR(RISC_SYNC | RISC_SYNC_FM1 | op_sync_orin);
+	RISC_INSTR(0);
+
+	dprintk("bt878: risc len lines %u, bytes per line %u\n", 
+			bt->line_count, bt->line_bytes);
+	for (line = 0; line < bt->line_count; line++) {
+		// At the beginning of every block we issue an IRQ with previous (finished) block number set
+		if (!(buf_pos % bt->block_bytes))
+			RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL |
+				   RISC_IRQ |
+				   RISC_STATUS(((buf_pos /
+						 bt->block_bytes) +
+						(bt->block_count -
+						 1)) %
+					       bt->block_count) | bt->
+				   line_bytes);
+		else
+			RISC_INSTR(RISC_WRITE | RISC_WR_SOL | RISC_WR_EOL |
+				   bt->line_bytes);
+		RISC_INSTR(bt->buf_dma + buf_pos);
+		buf_pos += bt->line_bytes;
+	}
+
+	RISC_INSTR(RISC_SYNC | op_sync_orin | RISC_SYNC_VRO);
+	RISC_INSTR(0);
+
+	RISC_INSTR(RISC_JUMP);
+	RISC_INSTR(bt->risc_dma);
+
+	btwrite((bt->line_count << 16) | bt->line_bytes, BT878_APACK_LEN);
+}
+
+/*****************************/
+/* Start/Stop grabbing funcs */
+/*****************************/
+
+void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin,
+		u32 irq_err_ignore)
+{
+	u32 int_mask;
+
+	dprintk("bt878 debug: bt878_start (ctl=%8.8x)\n", controlreg);
+	/* complete the writing of the risc dma program now we have
+	 * the card specifics
+	 */
+	bt878_risc_program(bt, op_sync_orin);
+	controlreg &= ~0x1f;
+	controlreg |= 0x1b;
+
+	btwrite(cpu_to_le32(bt->risc_dma), BT878_ARISC_START);
+
+	/* original int mask had :
+	 *    6    2    8    4    0
+	 * 1111 1111 1000 0000 0000
+	 * SCERR|OCERR|PABORT|RIPERR|FDSR|FTRGT|FBUS|RISCI
+	 * Hacked for DST to:
+	 * SCERR | OCERR | FDSR | FTRGT | FBUS | RISCI
+	 */
+	int_mask = BT878_ASCERR | BT878_AOCERR | BT878_APABORT | 
+		BT878_ARIPERR | BT878_APPERR | BT878_AFDSR | BT878_AFTRGT | 
+		BT878_AFBUS | BT878_ARISCI;
+
+
+	/* ignore pesky bits */
+	int_mask &= ~irq_err_ignore;
+	
+	btwrite(int_mask, BT878_AINT_MASK);
+	btwrite(controlreg, BT878_AGPIO_DMA_CTL);
+}
+
+void bt878_stop(struct bt878 *bt)
+{
+	u32 stat;
+	int i = 0;
+
+	dprintk("bt878 debug: bt878_stop\n");
+
+	btwrite(0, BT878_AINT_MASK);
+	btand(~0x13, BT878_AGPIO_DMA_CTL);
+
+	do {
+		stat = btread(BT878_AINT_STAT);
+		if (!(stat & BT878_ARISC_EN))
+			break;
+		i++;
+	} while (i < 500);
+
+	dprintk("bt878(%d) debug: bt878_stop, i=%d, stat=0x%8.8x\n",
+		bt->nr, i, stat);
+}
+
+EXPORT_SYMBOL(bt878_start);
+EXPORT_SYMBOL(bt878_stop);
+
+/*****************************/
+/* Interrupt service routine */
+/*****************************/
+
+static irqreturn_t bt878_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+	u32 stat, astat, mask;
+	int count;
+	struct bt878 *bt;
+
+	bt = (struct bt878 *) dev_id;
+
+	count = 0;
+	while (1) {
+		stat = btread(BT878_AINT_STAT);
+		mask = btread(BT878_AINT_MASK);
+		if (!(astat = (stat & mask)))
+			return IRQ_NONE;	/* this interrupt is not for me */
+/*		dprintk("bt878(%d) debug: irq count %d, stat 0x%8.8x, mask 0x%8.8x\n",bt->nr,count,stat,mask); */
+		btwrite(astat, BT878_AINT_STAT);	/* try to clear interupt condition */
+
+
+		if (astat & (BT878_ASCERR | BT878_AOCERR)) {
+			if (bt878_verbose) {
+				printk("bt878(%d): irq%s%s risc_pc=%08x\n",
+				       bt->nr,
+				       (astat & BT878_ASCERR) ? " SCERR" :
+				       "",
+				       (astat & BT878_AOCERR) ? " OCERR" :
+				       "", btread(BT878_ARISC_PC));
+			}
+		}
+		if (astat & (BT878_APABORT | BT878_ARIPERR | BT878_APPERR)) {
+			if (bt878_verbose) {
+				printk
+				    ("bt878(%d): irq%s%s%s risc_pc=%08x\n",
+				     bt->nr,
+				     (astat & BT878_APABORT) ? " PABORT" :
+				     "",
+				     (astat & BT878_ARIPERR) ? " RIPERR" :
+				     "",
+				     (astat & BT878_APPERR) ? " PPERR" :
+				     "", btread(BT878_ARISC_PC));
+			}
+		}
+		if (astat & (BT878_AFDSR | BT878_AFTRGT | BT878_AFBUS)) {
+			if (bt878_verbose) {
+				printk
+				    ("bt878(%d): irq%s%s%s risc_pc=%08x\n",
+				     bt->nr,
+				     (astat & BT878_AFDSR) ? " FDSR" : "",
+				     (astat & BT878_AFTRGT) ? " FTRGT" :
+				     "",
+				     (astat & BT878_AFBUS) ? " FBUS" : "",
+				     btread(BT878_ARISC_PC));
+			}
+		}
+		if (astat & BT878_ARISCI) {
+			bt->finished_block = (stat & BT878_ARISCS) >> 28;
+			tasklet_schedule(&bt->tasklet);
+			break;
+		}
+		count++;
+		if (count > 20) {
+			btwrite(0, BT878_AINT_MASK);
+			printk(KERN_ERR
+			       "bt878(%d): IRQ lockup, cleared int mask\n",
+			       bt->nr);
+			break;
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+int
+bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp)
+{
+	int retval;
+
+	retval = 0;
+	if (down_interruptible (&bt->gpio_lock))
+		return -ERESTARTSYS;
+	/* special gpio signal */
+	switch (cmd) {
+	    case DST_IG_ENABLE:
+		// dprintk("dvb_bt8xx: dst enable mask 0x%02x enb 0x%02x \n", mp->dstg.enb.mask, mp->dstg.enb.enable);
+		retval = bttv_gpio_enable(bt->bttv_nr,
+				mp->enb.mask,
+				mp->enb.enable);
+		break;
+	    case DST_IG_WRITE:
+		// dprintk("dvb_bt8xx: dst write gpio mask 0x%02x out 0x%02x\n", mp->dstg.outp.mask, mp->dstg.outp.highvals);
+		retval = bttv_write_gpio(bt->bttv_nr,
+				mp->outp.mask,
+				mp->outp.highvals);
+
+		break;
+	    case DST_IG_READ:
+		/* read */
+		retval =  bttv_read_gpio(bt->bttv_nr, &mp->rd.value);
+		// dprintk("dvb_bt8xx: dst read gpio 0x%02x\n", (unsigned)mp->dstg.rd.value);
+		break;
+	    case DST_IG_TS:
+		/* Set packet size */
+		bt->TS_Size = mp->psize;
+		break;
+
+	    default:
+		retval = -EINVAL;
+		break;
+	}
+	up(&bt->gpio_lock);
+	return retval;
+}
+
+EXPORT_SYMBOL(bt878_device_control);
+
+/***********************/
+/* PCI device handling */
+/***********************/
+
+static int __devinit bt878_probe(struct pci_dev *dev,
+				 const struct pci_device_id *pci_id)
+{
+	int result;
+	unsigned char lat;
+	struct bt878 *bt;
+#if defined(__powerpc__)
+	unsigned int cmd;
+#endif
+
+	printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n",
+	       bt878_num);
+	if (pci_enable_device(dev))
+		return -EIO;
+
+	bt = &bt878[bt878_num];
+	bt->dev = dev;
+	bt->nr = bt878_num;
+	bt->shutdown = 0;
+
+	bt->id = dev->device;
+	bt->irq = dev->irq;
+	bt->bt878_adr = pci_resource_start(dev, 0);
+	if (!request_mem_region(pci_resource_start(dev, 0),
+				pci_resource_len(dev, 0), "bt878")) {
+		result = -EBUSY;
+		goto fail0;
+	}
+
+	pci_read_config_byte(dev, PCI_CLASS_REVISION, &bt->revision);
+	pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
+	printk(KERN_INFO "bt878(%d): Bt%x (rev %d) at %02x:%02x.%x, ",
+	       bt878_num, bt->id, bt->revision, dev->bus->number,
+	       PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+	printk("irq: %d, latency: %d, memory: 0x%lx\n",
+	       bt->irq, lat, bt->bt878_adr);
+
+
+#if defined(__powerpc__)
+	/* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
+	/* response on cards with no firmware is not enabled by OF */
+	pci_read_config_dword(dev, PCI_COMMAND, &cmd);
+	cmd = (cmd | PCI_COMMAND_MEMORY);
+	pci_write_config_dword(dev, PCI_COMMAND, cmd);
+#endif
+
+#ifdef __sparc__
+	bt->bt878_mem = (unsigned char *) bt->bt878_adr;
+#else
+	bt->bt878_mem = ioremap(bt->bt878_adr, 0x1000);
+#endif
+
+	/* clear interrupt mask */
+	btwrite(0, BT848_INT_MASK);
+
+	result = request_irq(bt->irq, bt878_irq,
+			     SA_SHIRQ | SA_INTERRUPT, "bt878",
+			     (void *) bt);
+	if (result == -EINVAL) {
+		printk(KERN_ERR "bt878(%d): Bad irq number or handler\n",
+		       bt878_num);
+		goto fail1;
+	}
+	if (result == -EBUSY) {
+		printk(KERN_ERR
+		       "bt878(%d): IRQ %d busy, change your PnP config in BIOS\n",
+		       bt878_num, bt->irq);
+		goto fail1;
+	}
+	if (result < 0)
+		goto fail1;
+
+	pci_set_master(dev);
+	pci_set_drvdata(dev, bt);
+
+/*        if(init_bt878(btv) < 0) {
+                bt878_remove(dev);
+                return -EIO;
+        }
+*/
+
+	if ((result = bt878_mem_alloc(bt))) {
+		printk("bt878: failed to allocate memory!\n");
+		goto fail2;
+	}
+
+	bt878_make_risc(bt);
+	btwrite(0, BT878_AINT_MASK);
+	bt878_num++;
+
+	return 0;
+
+      fail2:
+	free_irq(bt->irq, bt);
+      fail1:
+	release_mem_region(pci_resource_start(bt->dev, 0),
+			   pci_resource_len(bt->dev, 0));
+      fail0:
+	pci_disable_device(dev);
+	return result;
+}
+
+static void __devexit bt878_remove(struct pci_dev *pci_dev)
+{
+	u8 command;
+	struct bt878 *bt = pci_get_drvdata(pci_dev);
+
+	if (bt878_verbose)
+		printk("bt878(%d): unloading\n", bt->nr);
+
+	/* turn off all capturing, DMA and IRQs */
+	btand(~0x13, BT878_AGPIO_DMA_CTL);
+
+	/* first disable interrupts before unmapping the memory! */
+	btwrite(0, BT878_AINT_MASK);
+	btwrite(~0U, BT878_AINT_STAT);
+
+	/* disable PCI bus-mastering */
+	pci_read_config_byte(bt->dev, PCI_COMMAND, &command);
+	/* Should this be &=~ ?? */
+	command &= ~PCI_COMMAND_MASTER;
+	pci_write_config_byte(bt->dev, PCI_COMMAND, command);
+
+	free_irq(bt->irq, bt);
+	printk(KERN_DEBUG "bt878_mem: 0x%p.\n", bt->bt878_mem);
+	if (bt->bt878_mem)
+		iounmap(bt->bt878_mem);
+
+	release_mem_region(pci_resource_start(bt->dev, 0),
+			   pci_resource_len(bt->dev, 0));
+	/* wake up any waiting processes
+	   because shutdown flag is set, no new processes (in this queue)
+	   are expected
+	 */
+	bt->shutdown = 1;
+	bt878_mem_free(bt);
+
+	pci_set_drvdata(pci_dev, NULL);
+	pci_disable_device(pci_dev);
+	return;
+}
+
+static struct pci_device_id bt878_pci_tbl[] __devinitdata = {
+	{PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BROOKTREE_878,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{0,}
+};
+
+MODULE_DEVICE_TABLE(pci, bt878_pci_tbl);
+
+static struct pci_driver bt878_pci_driver = {
+      .name 	= "bt878",
+      .id_table = bt878_pci_tbl,
+      .probe 	= bt878_probe,
+      .remove 	= bt878_remove,
+};
+
+static int bt878_pci_driver_registered = 0;
+
+/*******************************/
+/* Module management functions */
+/*******************************/
+
+static int bt878_init_module(void)
+{
+	bt878_num = 0;
+	bt878_pci_driver_registered = 0;
+
+	printk(KERN_INFO "bt878: AUDIO driver version %d.%d.%d loaded\n",
+	       (BT878_VERSION_CODE >> 16) & 0xff,
+	       (BT878_VERSION_CODE >> 8) & 0xff,
+	       BT878_VERSION_CODE & 0xff);
+/*
+        bt878_check_chipset();
+*/
+	/* later we register inside of bt878_find_audio_dma()
+	 * because we may want to ignore certain cards */
+	bt878_pci_driver_registered = 1;
+	return pci_register_driver(&bt878_pci_driver);
+}
+
+static void bt878_cleanup_module(void)
+{
+	if (bt878_pci_driver_registered) {
+		bt878_pci_driver_registered = 0;
+		pci_unregister_driver(&bt878_pci_driver);
+	}
+	return;
+}
+
+module_init(bt878_init_module);
+module_exit(bt878_cleanup_module);
+
+//MODULE_AUTHOR("XXX");
+MODULE_LICENSE("GPL");
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
diff --git a/drivers/media/dvb/bt8xx/bt878.h b/drivers/media/dvb/bt8xx/bt878.h
new file mode 100644
index 000000000000..e1b9809d1b08
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/bt878.h
@@ -0,0 +1,147 @@
+/* 
+    bt878.h - Bt878 audio module (register offsets)
+
+    Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@t-online.de>
+
+    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.
+*/
+
+#ifndef _BT878_H_
+#define _BT878_H_
+
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include "bt848.h"
+#include "bttv.h"
+
+#define BT878_VERSION_CODE 0x000000
+
+#define BT878_AINT_STAT		0x100
+#define BT878_ARISCS		(0xf<<28)
+#define BT878_ARISC_EN		(1<<27)
+#define BT878_ASCERR		(1<<19)
+#define BT878_AOCERR		(1<<18)
+#define BT878_APABORT		(1<<17)
+#define BT878_ARIPERR		(1<<16)
+#define BT878_APPERR		(1<<15)
+#define BT878_AFDSR		(1<<14)
+#define BT878_AFTRGT		(1<<13)
+#define BT878_AFBUS		(1<<12)
+#define BT878_ARISCI		(1<<11)
+#define BT878_AOFLOW		(1<<3)
+
+#define BT878_AINT_MASK		0x104
+
+#define BT878_AGPIO_DMA_CTL	0x10c
+#define BT878_A_GAIN		(0xf<<28)
+#define BT878_A_G2X		(1<<27)
+#define BT878_A_PWRDN		(1<<26)
+#define BT878_A_SEL		(3<<24)
+#define BT878_DA_SCE		(1<<23)
+#define BT878_DA_LRI		(1<<22)
+#define BT878_DA_MLB		(1<<21)
+#define BT878_DA_LRD		(0x1f<<16)
+#define BT878_DA_DPM		(1<<15)
+#define BT878_DA_SBR		(1<<14)
+#define BT878_DA_ES2		(1<<13)
+#define BT878_DA_LMT		(1<<12)
+#define BT878_DA_SDR		(0xf<<8)
+#define BT878_DA_IOM		(3<<6)
+#define BT878_DA_APP		(1<<5)
+#define BT878_ACAP_EN		(1<<4)
+#define BT878_PKTP		(3<<2)
+#define BT878_RISC_EN		(1<<1)
+#define BT878_FIFO_EN		1
+
+#define BT878_APACK_LEN		0x110
+#define BT878_AFP_LEN		(0xff<<16)
+#define BT878_ALP_LEN		0xfff
+
+#define BT878_ARISC_START	0x114
+
+#define BT878_ARISC_PC		0x120
+
+/* BT878 FUNCTION 0 REGISTERS */
+#define BT878_GPIO_DMA_CTL	0x10c
+
+/* Interrupt register */
+#define BT878_INT_STAT		0x100
+#define BT878_INT_MASK		0x104
+#define BT878_I2CRACK		(1<<25)
+#define BT878_I2CDONE		(1<<8)
+
+#define BT878_MAX 4
+
+#define BT878_RISC_SYNC_MASK	(1 << 15)
+
+extern int bt878_num;
+
+struct bt878 {
+	struct semaphore  gpio_lock;
+	unsigned int nr;
+	unsigned int bttv_nr;
+	struct i2c_adapter *adapter;
+	struct pci_dev *dev;
+	unsigned int id;
+	unsigned int TS_Size;
+	unsigned char revision;
+	unsigned int irq;
+	unsigned long bt878_adr;
+	volatile void __iomem *bt878_mem; /* function 1 */
+
+	volatile u32 finished_block;
+	volatile u32 last_block;
+	u32 block_count;
+	u32 block_bytes;
+	u32 line_bytes;
+	u32 line_count;
+
+	u32 buf_size;
+	u8 *buf_cpu;
+	dma_addr_t buf_dma;
+
+	u32 risc_size;
+	u32 *risc_cpu;
+	dma_addr_t risc_dma;
+	u32 risc_pos;
+
+	struct tasklet_struct tasklet;
+	int shutdown;	
+};
+
+extern struct bt878 bt878[BT878_MAX];
+
+void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin,
+		u32 irq_err_ignore);
+void bt878_stop(struct bt878 *bt);	     
+
+#if defined(__powerpc__)	/* big-endian */
+extern __inline__ void io_st_le32(volatile unsigned __iomem *addr, unsigned val)
+{
+	__asm__ __volatile__("stwbrx %1,0,%2":"=m"(*addr):"r"(val),
+			     "r"(addr));
+	__asm__ __volatile__("eieio":::"memory");
+}
+
+#define bmtwrite(dat,adr)  io_st_le32((adr),(dat))
+#define bmtread(adr)       ld_le32((adr))
+#else
+#define bmtwrite(dat,adr)  writel((dat), (adr))
+#define bmtread(adr)       readl(adr)
+#endif
+
+#endif
diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
new file mode 100644
index 000000000000..eac83768dfd0
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -0,0 +1,1089 @@
+/*
+    Frontend-driver for TwinHan DST Frontend
+
+    Copyright (C) 2003 Jamie Honan
+
+    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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <asm/div64.h>
+
+#include "dvb_frontend.h"
+#include "dst_priv.h"
+#include "dst.h"
+
+struct dst_state {
+
+	struct i2c_adapter* i2c;
+
+	struct bt878* bt;
+
+	struct dvb_frontend_ops ops;
+
+	/* configuration settings */
+	const struct dst_config* config;
+
+	struct dvb_frontend frontend;
+
+	/* private demodulator data */
+	u8 tx_tuna[10];
+	u8 rx_tuna[10];
+	u8 rxbuffer[10];
+	u8 diseq_flags;
+	u8 dst_type;
+	u32 type_flags;
+	u32 frequency;		/* intermediate frequency in kHz for QPSK */
+	fe_spectral_inversion_t inversion;
+	u32 symbol_rate;	/* symbol rate in Symbols per second */
+	fe_code_rate_t fec;
+	fe_sec_voltage_t voltage;
+	fe_sec_tone_mode_t tone;
+	u32 decode_freq;
+	u8 decode_lock;
+	u16 decode_strength;
+	u16 decode_snr;
+	unsigned long cur_jiff;
+	u8 k22;
+	fe_bandwidth_t bandwidth;
+};
+
+static unsigned int dst_verbose = 0;
+module_param(dst_verbose, int, 0644);
+MODULE_PARM_DESC(dst_verbose, "verbose startup messages, default is 1 (yes)");
+static unsigned int dst_debug = 0;
+module_param(dst_debug, int, 0644);
+MODULE_PARM_DESC(dst_debug, "debug messages, default is 0 (no)");
+
+#define dprintk	if (dst_debug) printk
+
+#define DST_TYPE_IS_SAT		0
+#define DST_TYPE_IS_TERR	1
+#define DST_TYPE_IS_CABLE	2
+
+#define DST_TYPE_HAS_NEWTUNE	1
+#define DST_TYPE_HAS_TS204	2
+#define DST_TYPE_HAS_SYMDIV	4
+
+#define HAS_LOCK	1
+#define ATTEMPT_TUNE	2
+#define HAS_POWER	4
+
+static void dst_packsize(struct dst_state* state, int psize)
+{
+	union dst_gpio_packet bits;
+
+	bits.psize = psize;
+	bt878_device_control(state->bt, DST_IG_TS, &bits);
+}
+
+static int dst_gpio_outb(struct dst_state* state, u32 mask, u32 enbb, u32 outhigh)
+{
+	union dst_gpio_packet enb;
+	union dst_gpio_packet bits;
+	int err;
+
+	enb.enb.mask = mask;
+	enb.enb.enable = enbb;
+	if ((err = bt878_device_control(state->bt, DST_IG_ENABLE, &enb)) < 0) {
+		dprintk("%s: dst_gpio_enb error (err == %i, mask == 0x%02x, enb == 0x%02x)\n", __FUNCTION__, err, mask, enbb);
+		return -EREMOTEIO;
+	}
+
+	/* because complete disabling means no output, no need to do output packet */
+	if (enbb == 0)
+		return 0;
+
+	bits.outp.mask = enbb;
+	bits.outp.highvals = outhigh;
+
+	if ((err = bt878_device_control(state->bt, DST_IG_WRITE, &bits)) < 0) {
+		dprintk("%s: dst_gpio_outb error (err == %i, enbb == 0x%02x, outhigh == 0x%02x)\n", __FUNCTION__, err, enbb, outhigh);
+		return -EREMOTEIO;
+	}
+	return 0;
+}
+
+static int dst_gpio_inb(struct dst_state *state, u8 * result)
+{
+	union dst_gpio_packet rd_packet;
+	int err;
+
+	*result = 0;
+
+	if ((err = bt878_device_control(state->bt, DST_IG_READ, &rd_packet)) < 0) {
+		dprintk("%s: dst_gpio_inb error (err == %i)\n", __FUNCTION__, err);
+		return -EREMOTEIO;
+	}
+
+	*result = (u8) rd_packet.rd.value;
+	return 0;
+}
+
+#define DST_I2C_ENABLE	1
+#define DST_8820	2
+
+static int dst_reset8820(struct dst_state *state)
+{
+	int retval;
+	/* pull 8820 gpio pin low, wait, high, wait, then low */
+	// dprintk ("%s: reset 8820\n", __FUNCTION__);
+	retval = dst_gpio_outb(state, DST_8820, DST_8820, 0);
+	if (retval < 0)
+		return retval;
+	msleep(10);
+	retval = dst_gpio_outb(state, DST_8820, DST_8820, DST_8820);
+	if (retval < 0)
+		return retval;
+	/* wait for more feedback on what works here *
+	   msleep(10);
+	   retval = dst_gpio_outb(dst, DST_8820, DST_8820, 0);
+	   if (retval < 0)
+	   return retval;
+	 */
+	return 0;
+}
+
+static int dst_i2c_enable(struct dst_state *state)
+{
+	int retval;
+	/* pull I2C enable gpio pin low, wait */
+	// dprintk ("%s: i2c enable\n", __FUNCTION__);
+	retval = dst_gpio_outb(state, ~0, DST_I2C_ENABLE, 0);
+	if (retval < 0)
+		return retval;
+	// dprintk ("%s: i2c enable delay\n", __FUNCTION__);
+	msleep(33);
+	return 0;
+}
+
+static int dst_i2c_disable(struct dst_state *state)
+{
+	int retval;
+	/* release I2C enable gpio pin, wait */
+	// dprintk ("%s: i2c disable\n", __FUNCTION__);
+	retval = dst_gpio_outb(state, ~0, 0, 0);
+	if (retval < 0)
+		return retval;
+	// dprintk ("%s: i2c disable delay\n", __FUNCTION__);
+	msleep(33);
+	return 0;
+}
+
+static int dst_wait_dst_ready(struct dst_state *state)
+{
+	u8 reply;
+	int retval;
+	int i;
+	for (i = 0; i < 200; i++) {
+		retval = dst_gpio_inb(state, &reply);
+		if (retval < 0)
+			return retval;
+		if ((reply & DST_I2C_ENABLE) == 0) {
+			dprintk("%s: dst wait ready after %d\n", __FUNCTION__, i);
+			return 1;
+		}
+		msleep(10);
+	}
+	dprintk("%s: dst wait NOT ready after %d\n", __FUNCTION__, i);
+	return 0;
+}
+
+static int write_dst(struct dst_state *state, u8 * data, u8 len)
+{
+	struct i2c_msg msg = {
+		.addr = state->config->demod_address,.flags = 0,.buf = data,.len = len
+	};
+	int err;
+	int cnt;
+
+	if (dst_debug && dst_verbose) {
+		u8 i;
+		dprintk("%s writing", __FUNCTION__);
+		for (i = 0; i < len; i++) {
+			dprintk(" 0x%02x", data[i]);
+		}
+		dprintk("\n");
+	}
+	msleep(30);
+	for (cnt = 0; cnt < 4; cnt++) {
+		if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
+			dprintk("%s: write_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, data[0]);
+			dst_i2c_disable(state);
+			msleep(500);
+			dst_i2c_enable(state);
+			msleep(500);
+			continue;
+		} else
+			break;
+	}
+	if (cnt >= 4)
+		return -EREMOTEIO;
+	return 0;
+}
+
+static int read_dst(struct dst_state *state, u8 * ret, u8 len)
+{
+	struct i2c_msg msg = {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = ret,.len = len };
+	int err;
+	int cnt;
+
+	for (cnt = 0; cnt < 4; cnt++) {
+		if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
+			dprintk("%s: read_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, ret[0]);
+			dst_i2c_disable(state);
+			dst_i2c_enable(state);
+			continue;
+		} else
+			break;
+	}
+	if (cnt >= 4)
+		return -EREMOTEIO;
+	dprintk("%s reply is 0x%x\n", __FUNCTION__, ret[0]);
+	if (dst_debug && dst_verbose) {
+		for (err = 1; err < len; err++)
+			dprintk(" 0x%x", ret[err]);
+		if (err > 1)
+			dprintk("\n");
+	}
+	return 0;
+}
+
+static int dst_set_freq(struct dst_state *state, u32 freq)
+{
+	u8 *val;
+
+	state->frequency = freq;
+
+	// dprintk("%s: set frequency %u\n", __FUNCTION__, freq);
+	if (state->dst_type == DST_TYPE_IS_SAT) {
+		freq = freq / 1000;
+		if (freq < 950 || freq > 2150)
+			return -EINVAL;
+		val = &state->tx_tuna[0];
+		val[2] = (freq >> 8) & 0x7f;
+		val[3] = (u8) freq;
+		val[4] = 1;
+		val[8] &= ~4;
+		if (freq < 1531)
+			val[8] |= 4;
+	} else if (state->dst_type == DST_TYPE_IS_TERR) {
+		freq = freq / 1000;
+		if (freq < 137000 || freq > 858000)
+			return -EINVAL;
+		val = &state->tx_tuna[0];
+		val[2] = (freq >> 16) & 0xff;
+		val[3] = (freq >> 8) & 0xff;
+		val[4] = (u8) freq;
+		val[5] = 0;
+		switch (state->bandwidth) {
+		case BANDWIDTH_6_MHZ:
+			val[6] = 6;
+			break;
+
+		case BANDWIDTH_7_MHZ:
+		case BANDWIDTH_AUTO:
+			val[6] = 7;
+			break;
+
+		case BANDWIDTH_8_MHZ:
+			val[6] = 8;
+			break;
+		}
+
+		val[7] = 0;
+		val[8] = 0;
+	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
+		/* guess till will get one */
+		freq = freq / 1000;
+		val = &state->tx_tuna[0];
+		val[2] = (freq >> 16) & 0xff;
+		val[3] = (freq >> 8) & 0xff;
+		val[4] = (u8) freq;
+	} else
+		return -EINVAL;
+	return 0;
+}
+
+static int dst_set_bandwidth(struct dst_state* state, fe_bandwidth_t bandwidth)
+{
+	u8 *val;
+
+	state->bandwidth = bandwidth;
+
+	if (state->dst_type != DST_TYPE_IS_TERR)
+		return 0;
+
+	val = &state->tx_tuna[0];
+	switch (bandwidth) {
+	case BANDWIDTH_6_MHZ:
+		val[6] = 6;
+		break;
+
+	case BANDWIDTH_7_MHZ:
+		val[6] = 7;
+		break;
+
+	case BANDWIDTH_8_MHZ:
+		val[6] = 8;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int dst_set_inversion(struct dst_state* state, fe_spectral_inversion_t inversion)
+{
+	u8 *val;
+
+	state->inversion = inversion;
+
+	val = &state->tx_tuna[0];
+
+	val[8] &= ~0x80;
+
+	switch (inversion) {
+	case INVERSION_OFF:
+		break;
+	case INVERSION_ON:
+		val[8] |= 0x80;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int dst_set_fec(struct dst_state* state, fe_code_rate_t fec)
+{
+	state->fec = fec;
+	return 0;
+}
+
+static fe_code_rate_t dst_get_fec(struct dst_state* state)
+{
+	return state->fec;
+}
+
+static int dst_set_symbolrate(struct dst_state* state, u32 srate)
+{
+	u8 *val;
+	u32 symcalc;
+	u64 sval;
+
+	state->symbol_rate = srate;
+
+	if (state->dst_type == DST_TYPE_IS_TERR) {
+		return 0;
+	}
+	// dprintk("%s: set srate %u\n", __FUNCTION__, srate);
+	srate /= 1000;
+	val = &state->tx_tuna[0];
+
+	if (state->type_flags & DST_TYPE_HAS_SYMDIV) {
+		sval = srate;
+		sval <<= 20;
+		do_div(sval, 88000);
+		symcalc = (u32) sval;
+		// dprintk("%s: set symcalc %u\n", __FUNCTION__, symcalc);
+		val[5] = (u8) (symcalc >> 12);
+		val[6] = (u8) (symcalc >> 4);
+		val[7] = (u8) (symcalc << 4);
+	} else {
+		val[5] = (u8) (srate >> 16) & 0x7f;
+		val[6] = (u8) (srate >> 8);
+		val[7] = (u8) srate;
+	}
+	val[8] &= ~0x20;
+	if (srate > 8000)
+		val[8] |= 0x20;
+	return 0;
+}
+
+static u8 dst_check_sum(u8 * buf, u32 len)
+{
+	u32 i;
+	u8 val = 0;
+	if (!len)
+		return 0;
+	for (i = 0; i < len; i++) {
+		val += buf[i];
+	}
+	return ((~val) + 1);
+}
+
+struct dst_types {
+	char *mstr;
+	int offs;
+	u8 dst_type;
+	u32 type_flags;
+};
+
+static struct dst_types dst_tlist[] = {
+	{"DST-020", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
+	{"DST-030", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
+	{"DST-03T", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_TS204},
+	{"DST-MOT", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
+	{"DST-CI",  1, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
+	{"DSTMCI",  1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
+	{"DSTFCI",  1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
+	{"DCTNEW",  1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE},
+	{"DCT-CI",  1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE | DST_TYPE_HAS_TS204},
+	{"DTTDIG",  1, DST_TYPE_IS_TERR, 0}
+};
+
+/* DCTNEW and DCT-CI are guesses */
+
+static void dst_type_flags_print(u32 type_flags)
+{
+	printk("DST type flags :");
+	if (type_flags & DST_TYPE_HAS_NEWTUNE)
+		printk(" 0x%x newtuner", DST_TYPE_HAS_NEWTUNE);
+	if (type_flags & DST_TYPE_HAS_TS204)
+		printk(" 0x%x ts204", DST_TYPE_HAS_TS204);
+	if (type_flags & DST_TYPE_HAS_SYMDIV)
+		printk(" 0x%x symdiv", DST_TYPE_HAS_SYMDIV);
+	printk("\n");
+}
+
+static int dst_type_print(u8 type)
+{
+	char *otype;
+	switch (type) {
+	case DST_TYPE_IS_SAT:
+		otype = "satellite";
+		break;
+	case DST_TYPE_IS_TERR:
+		otype = "terrestrial";
+		break;
+	case DST_TYPE_IS_CABLE:
+		otype = "cable";
+		break;
+	default:
+		printk("%s: invalid dst type %d\n", __FUNCTION__, type);
+		return -EINVAL;
+	}
+	printk("DST type : %s\n", otype);
+	return 0;
+}
+
+static int dst_check_ci(struct dst_state *state)
+{
+	u8 txbuf[8];
+	u8 rxbuf[8];
+	int retval;
+	int i;
+	struct dst_types *dsp;
+	u8 use_dst_type;
+	u32 use_type_flags;
+
+	memset(txbuf, 0, sizeof(txbuf));
+	txbuf[1] = 6;
+	txbuf[7] = dst_check_sum(txbuf, 7);
+
+	dst_i2c_enable(state);
+	dst_reset8820(state);
+	retval = write_dst(state, txbuf, 8);
+	if (retval < 0) {
+		dst_i2c_disable(state);
+		dprintk("%s: write not successful, maybe no card?\n", __FUNCTION__);
+		return retval;
+	}
+	msleep(3);
+	retval = read_dst(state, rxbuf, 1);
+	dst_i2c_disable(state);
+	if (retval < 0) {
+		dprintk("%s: read not successful, maybe no card?\n", __FUNCTION__);
+		return retval;
+	}
+	if (rxbuf[0] != 0xff) {
+		dprintk("%s: write reply not 0xff, not ci (%02x)\n", __FUNCTION__, rxbuf[0]);
+		return retval;
+	}
+	if (!dst_wait_dst_ready(state))
+		return 0;
+	// dst_i2c_enable(i2c); Dimitri
+	retval = read_dst(state, rxbuf, 8);
+	dst_i2c_disable(state);
+	if (retval < 0) {
+		dprintk("%s: read not successful\n", __FUNCTION__);
+		return retval;
+	}
+	if (rxbuf[7] != dst_check_sum(rxbuf, 7)) {
+		dprintk("%s: checksum failure\n", __FUNCTION__);
+		return retval;
+	}
+	rxbuf[7] = '\0';
+	for (i = 0, dsp = &dst_tlist[0]; i < sizeof(dst_tlist) / sizeof(dst_tlist[0]); i++, dsp++) {
+		if (!strncmp(&rxbuf[dsp->offs], dsp->mstr, strlen(dsp->mstr))) {
+			use_type_flags = dsp->type_flags;
+			use_dst_type = dsp->dst_type;
+			printk("%s: recognize %s\n", __FUNCTION__, dsp->mstr);
+			break;
+		}
+	}
+	if (i >= sizeof(dst_tlist) / sizeof(dst_tlist[0])) {
+		printk("%s: unable to recognize %s or %s\n", __FUNCTION__, &rxbuf[0], &rxbuf[1]);
+		printk("%s please email linux-dvb@linuxtv.org with this type in\n", __FUNCTION__);
+		use_dst_type = DST_TYPE_IS_SAT;
+		use_type_flags = DST_TYPE_HAS_SYMDIV;
+	}
+	dst_type_print(use_dst_type);
+
+	state->type_flags = use_type_flags;
+	state->dst_type = use_dst_type;
+	dst_type_flags_print(state->type_flags);
+
+	if (state->type_flags & DST_TYPE_HAS_TS204) {
+		dst_packsize(state, 204);
+	}
+	return 0;
+}
+
+static int dst_command(struct dst_state* state, u8 * data, u8 len)
+{
+	int retval;
+	u8 reply;
+
+	dst_i2c_enable(state);
+	dst_reset8820(state);
+	retval = write_dst(state, data, len);
+	if (retval < 0) {
+		dst_i2c_disable(state);
+		dprintk("%s: write not successful\n", __FUNCTION__);
+		return retval;
+	}
+	msleep(33);
+	retval = read_dst(state, &reply, 1);
+	dst_i2c_disable(state);
+	if (retval < 0) {
+		dprintk("%s: read verify  not successful\n", __FUNCTION__);
+		return retval;
+	}
+	if (reply != 0xff) {
+		dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
+		return 0;
+	}
+	if (len >= 2 && data[0] == 0 && (data[1] == 1 || data[1] == 3))
+		return 0;
+	if (!dst_wait_dst_ready(state))
+		return 0;
+	// dst_i2c_enable(i2c); Per dimitri
+	retval = read_dst(state, state->rxbuffer, 8);
+	dst_i2c_disable(state);
+	if (retval < 0) {
+		dprintk("%s: read not successful\n", __FUNCTION__);
+		return 0;
+	}
+	if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
+		dprintk("%s: checksum failure\n", __FUNCTION__);
+		return 0;
+	}
+	return 0;
+}
+
+static int dst_get_signal(struct dst_state* state)
+{
+	int retval;
+	u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
+
+	if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
+		state->decode_lock = state->decode_strength = state->decode_snr = 0;
+		return 0;
+	}
+	if (0 == (state->diseq_flags & HAS_LOCK)) {
+		state->decode_lock = state->decode_strength = state->decode_snr = 0;
+		return 0;
+	}
+	if (time_after_eq(jiffies, state->cur_jiff + (HZ / 5))) {
+		retval = dst_command(state, get_signal, 8);
+		if (retval < 0)
+			return retval;
+		if (state->dst_type == DST_TYPE_IS_SAT) {
+			state->decode_lock = ((state->rxbuffer[6] & 0x10) == 0) ? 1 : 0;
+			state->decode_strength = state->rxbuffer[5] << 8;
+			state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
+		} else if ((state->dst_type == DST_TYPE_IS_TERR) || (state->dst_type == DST_TYPE_IS_CABLE)) {
+			state->decode_lock = (state->rxbuffer[1]) ? 1 : 0;
+			state->decode_strength = state->rxbuffer[4] << 8;
+			state->decode_snr = state->rxbuffer[3] << 8;
+		}
+		state->cur_jiff = jiffies;
+	}
+	return 0;
+}
+
+static int dst_tone_power_cmd(struct dst_state* state)
+{
+	u8 paket[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 };
+
+	if (state->dst_type == DST_TYPE_IS_TERR)
+		return 0;
+
+	if (state->voltage == SEC_VOLTAGE_OFF)
+		paket[4] = 0;
+	else
+		paket[4] = 1;
+	if (state->tone == SEC_TONE_ON)
+		paket[2] = state->k22;
+	else
+		paket[2] = 0;
+	paket[7] = dst_check_sum(&paket[0], 7);
+	dst_command(state, paket, 8);
+	return 0;
+}
+
+static int dst_get_tuna(struct dst_state* state)
+{
+	int retval;
+	if ((state->diseq_flags & ATTEMPT_TUNE) == 0)
+		return 0;
+	state->diseq_flags &= ~(HAS_LOCK);
+	if (!dst_wait_dst_ready(state))
+		return 0;
+	if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
+		/* how to get variable length reply ???? */
+		retval = read_dst(state, state->rx_tuna, 10);
+	} else {
+		retval = read_dst(state, &state->rx_tuna[2], 8);
+	}
+	if (retval < 0) {
+		dprintk("%s: read not successful\n", __FUNCTION__);
+		return 0;
+	}
+	if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
+		if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[0], 9)) {
+			dprintk("%s: checksum failure?\n", __FUNCTION__);
+			return 0;
+		}
+	} else {
+		if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[2], 7)) {
+			dprintk("%s: checksum failure?\n", __FUNCTION__);
+			return 0;
+		}
+	}
+	if (state->rx_tuna[2] == 0 && state->rx_tuna[3] == 0)
+		return 0;
+	state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];
+
+	state->decode_lock = 1;
+	/*
+	   dst->decode_n1 = (dst->rx_tuna[4] << 8) +
+	   (dst->rx_tuna[5]);
+
+	   dst->decode_n2 = (dst->rx_tuna[8] << 8) +
+	   (dst->rx_tuna[7]);
+	 */
+	state->diseq_flags |= HAS_LOCK;
+	/* dst->cur_jiff = jiffies; */
+	return 1;
+}
+
+static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
+
+static int dst_write_tuna(struct dvb_frontend* fe)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	int retval;
+	u8 reply;
+
+	dprintk("%s: type_flags 0x%x \n", __FUNCTION__, state->type_flags);
+	state->decode_freq = 0;
+	state->decode_lock = state->decode_strength = state->decode_snr = 0;
+	if (state->dst_type == DST_TYPE_IS_SAT) {
+		if (!(state->diseq_flags & HAS_POWER))
+			dst_set_voltage(fe, SEC_VOLTAGE_13);
+	}
+	state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
+	dst_i2c_enable(state);
+	if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
+		dst_reset8820(state);
+		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
+		retval = write_dst(state, &state->tx_tuna[0], 10);
+	} else {
+		state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
+		retval = write_dst(state, &state->tx_tuna[2], 8);
+	}
+	if (retval < 0) {
+		dst_i2c_disable(state);
+		dprintk("%s: write not successful\n", __FUNCTION__);
+		return retval;
+	}
+	msleep(3);
+	retval = read_dst(state, &reply, 1);
+	dst_i2c_disable(state);
+	if (retval < 0) {
+		dprintk("%s: read verify  not successful\n", __FUNCTION__);
+		return retval;
+	}
+	if (reply != 0xff) {
+		dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
+		return 0;
+	}
+	state->diseq_flags |= ATTEMPT_TUNE;
+	return dst_get_tuna(state);
+}
+
+/*
+ * line22k0    0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
+ * line22k1    0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
+ * line22k2    0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
+ * tone        0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
+ * data        0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
+ * power_off   0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
+ * power_on    0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
+ * Diseqc 1    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
+ * Diseqc 2    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
+ * Diseqc 3    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
+ * Diseqc 4    0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
+ */
+
+static int dst_set_diseqc(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
+
+	if (state->dst_type == DST_TYPE_IS_TERR)
+		return 0;
+
+	if (cmd->msg_len == 0 || cmd->msg_len > 4)
+		return -EINVAL;
+	memcpy(&paket[3], cmd->msg, cmd->msg_len);
+	paket[7] = dst_check_sum(&paket[0], 7);
+	dst_command(state, paket, 8);
+	return 0;
+}
+
+static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
+{
+	u8 *val;
+	int need_cmd;
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	state->voltage = voltage;
+
+	if (state->dst_type == DST_TYPE_IS_TERR)
+		return 0;
+
+	need_cmd = 0;
+	val = &state->tx_tuna[0];
+	val[8] &= ~0x40;
+	switch (voltage) {
+	case SEC_VOLTAGE_13:
+		if ((state->diseq_flags & HAS_POWER) == 0)
+			need_cmd = 1;
+		state->diseq_flags |= HAS_POWER;
+		break;
+	case SEC_VOLTAGE_18:
+		if ((state->diseq_flags & HAS_POWER) == 0)
+			need_cmd = 1;
+		state->diseq_flags |= HAS_POWER;
+		val[8] |= 0x40;
+		break;
+	case SEC_VOLTAGE_OFF:
+		need_cmd = 1;
+		state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
+		break;
+	default:
+		return -EINVAL;
+	}
+	if (need_cmd) {
+		dst_tone_power_cmd(state);
+	}
+	return 0;
+}
+
+static int dst_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
+{
+	u8 *val;
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	state->tone = tone;
+
+	if (state->dst_type == DST_TYPE_IS_TERR)
+		return 0;
+
+	val = &state->tx_tuna[0];
+
+	val[8] &= ~0x1;
+
+	switch (tone) {
+	case SEC_TONE_OFF:
+		break;
+	case SEC_TONE_ON:
+		val[8] |= 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	dst_tone_power_cmd(state);
+	return 0;
+}
+
+static int dst_init(struct dvb_frontend* fe)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	static u8 ini_satci_tuna[] = { 9, 0, 3, 0xb6, 1, 0, 0x73, 0x21, 0, 0 };
+	static u8 ini_satfta_tuna[] = { 0, 0, 3, 0xb6, 1, 0x55, 0xbd, 0x50, 0, 0 };
+	static u8 ini_tvfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+	static u8 ini_tvci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+	static u8 ini_cabfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+	static u8 ini_cabci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+	state->inversion = INVERSION_ON;
+	state->voltage = SEC_VOLTAGE_13;
+	state->tone = SEC_TONE_OFF;
+	state->symbol_rate = 29473000;
+	state->fec = FEC_AUTO;
+	state->diseq_flags = 0;
+	state->k22 = 0x02;
+	state->bandwidth = BANDWIDTH_7_MHZ;
+	state->cur_jiff = jiffies;
+	if (state->dst_type == DST_TYPE_IS_SAT) {
+		state->frequency = 950000;
+		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_satci_tuna : ini_satfta_tuna), sizeof(ini_satfta_tuna));
+	} else if (state->dst_type == DST_TYPE_IS_TERR) {
+		state->frequency = 137000000;
+		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_tvci_tuna : ini_tvfta_tuna), sizeof(ini_tvfta_tuna));
+	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
+		state->frequency = 51000000;
+		memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_cabci_tuna : ini_cabfta_tuna), sizeof(ini_cabfta_tuna));
+	}
+
+	return 0;
+}
+
+static int dst_read_status(struct dvb_frontend* fe, fe_status_t* status)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	*status = 0;
+	if (state->diseq_flags & HAS_LOCK) {
+		dst_get_signal(state);
+		if (state->decode_lock)
+			*status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
+	}
+
+	return 0;
+}
+
+static int dst_read_signal_strength(struct dvb_frontend* fe, u16* strength)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	dst_get_signal(state);
+	*strength = state->decode_strength;
+
+	return 0;
+}
+
+static int dst_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	dst_get_signal(state);
+	*snr = state->decode_snr;
+
+	return 0;
+}
+
+static int dst_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	dst_set_freq(state, p->frequency);
+	dst_set_inversion(state, p->inversion);
+	if (state->dst_type == DST_TYPE_IS_SAT) {
+		dst_set_fec(state, p->u.qpsk.fec_inner);
+		dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
+	} else if (state->dst_type == DST_TYPE_IS_TERR) {
+		dst_set_bandwidth(state, p->u.ofdm.bandwidth);
+	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
+		dst_set_fec(state, p->u.qam.fec_inner);
+		dst_set_symbolrate(state, p->u.qam.symbol_rate);
+	}
+	dst_write_tuna(fe);
+
+	return 0;
+}
+
+static int dst_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+	p->frequency = state->decode_freq;
+	p->inversion = state->inversion;
+	if (state->dst_type == DST_TYPE_IS_SAT) {
+		p->u.qpsk.symbol_rate = state->symbol_rate;
+		p->u.qpsk.fec_inner = dst_get_fec(state);
+	} else if (state->dst_type == DST_TYPE_IS_TERR) {
+		p->u.ofdm.bandwidth = state->bandwidth;
+	} else if (state->dst_type == DST_TYPE_IS_CABLE) {
+		p->u.qam.symbol_rate = state->symbol_rate;
+		p->u.qam.fec_inner = dst_get_fec(state);
+		p->u.qam.modulation = QAM_AUTO;
+	}
+
+	return 0;
+}
+
+static void dst_release(struct dvb_frontend* fe)
+{
+	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	kfree(state);
+}
+
+static struct dvb_frontend_ops dst_dvbt_ops;
+static struct dvb_frontend_ops dst_dvbs_ops;
+static struct dvb_frontend_ops dst_dvbc_ops;
+
+struct dvb_frontend* dst_attach(const struct dst_config* config,
+				struct i2c_adapter* i2c,
+				struct bt878 *bt)
+{
+	struct dst_state* state = NULL;
+
+	/* allocate memory for the internal state */
+	state = (struct dst_state*) kmalloc(sizeof(struct dst_state), GFP_KERNEL);
+	if (state == NULL) goto error;
+
+	/* setup the state */
+	state->config = config;
+	state->i2c = i2c;
+	state->bt = bt;
+
+	/* check if the demod is there */
+	if (dst_check_ci(state) < 0) goto error;
+
+	/* determine settings based on type */
+	switch (state->dst_type) {
+	case DST_TYPE_IS_TERR:
+		memcpy(&state->ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
+		break;
+	case DST_TYPE_IS_CABLE:
+		memcpy(&state->ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
+		break;
+	case DST_TYPE_IS_SAT:
+		memcpy(&state->ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
+		break;
+	default:
+		printk("dst: unknown frontend type. please report to the LinuxTV.org DVB mailinglist.\n");
+		goto error;
+	}
+
+	/* create dvb_frontend */
+	state->frontend.ops = &state->ops;
+	state->frontend.demodulator_priv = state;
+	return &state->frontend;
+
+error:
+	kfree(state);
+	return NULL;
+}
+
+static struct dvb_frontend_ops dst_dvbt_ops = {
+
+	.info = {
+		.name = "DST DVB-T",
+		.type = FE_OFDM,
+		.frequency_min = 137000000,
+		.frequency_max = 858000000,
+		.frequency_stepsize = 166667,
+		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
+	},
+
+	.release = dst_release,
+
+	.init = dst_init,
+
+	.set_frontend = dst_set_frontend,
+	.get_frontend = dst_get_frontend,
+
+	.read_status = dst_read_status,
+	.read_signal_strength = dst_read_signal_strength,
+	.read_snr = dst_read_snr,
+};
+
+static struct dvb_frontend_ops dst_dvbs_ops = {
+
+	.info = {
+		.name = "DST DVB-S",
+		.type = FE_QPSK,
+		.frequency_min = 950000,
+		.frequency_max = 2150000,
+		.frequency_stepsize = 1000,	/* kHz for QPSK frontends */
+		.frequency_tolerance = 29500,
+		.symbol_rate_min = 1000000,
+		.symbol_rate_max = 45000000,
+	/*     . symbol_rate_tolerance	=	???,*/
+		.caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
+	},
+
+	.release = dst_release,
+
+	.init = dst_init,
+
+	.set_frontend = dst_set_frontend,
+	.get_frontend = dst_get_frontend,
+
+	.read_status = dst_read_status,
+	.read_signal_strength = dst_read_signal_strength,
+	.read_snr = dst_read_snr,
+
+	.diseqc_send_master_cmd = dst_set_diseqc,
+	.set_voltage = dst_set_voltage,
+	.set_tone = dst_set_tone,
+};
+
+static struct dvb_frontend_ops dst_dvbc_ops = {
+
+	.info = {
+		.name = "DST DVB-C",
+		.type = FE_QAM,
+		.frequency_stepsize = 62500,
+		.frequency_min = 51000000,
+		.frequency_max = 858000000,
+		.symbol_rate_min = 1000000,
+		.symbol_rate_max = 45000000,
+	/*     . symbol_rate_tolerance	=	???,*/
+		.caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO
+	},
+
+	.release = dst_release,
+
+	.init = dst_init,
+
+	.set_frontend = dst_set_frontend,
+	.get_frontend = dst_get_frontend,
+
+	.read_status = dst_read_status,
+	.read_signal_strength = dst_read_signal_strength,
+	.read_snr = dst_read_snr,
+};
+
+MODULE_DESCRIPTION("DST DVB-S/T/C Combo Frontend driver");
+MODULE_AUTHOR("Jamie Honan");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(dst_attach);
diff --git a/drivers/media/dvb/bt8xx/dst.h b/drivers/media/dvb/bt8xx/dst.h
new file mode 100644
index 000000000000..bcb418c5c121
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/dst.h
@@ -0,0 +1,40 @@
+/*
+    Frontend-driver for TwinHan DST Frontend
+
+    Copyright (C) 2003 Jamie Honan
+
+    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.
+
+*/
+
+#ifndef DST_H
+#define DST_H
+
+#include <linux/dvb/frontend.h>
+#include <linux/device.h>
+#include "bt878.h"
+
+struct dst_config
+{
+	/* the demodulator's i2c address */
+	u8 demod_address;
+};
+
+extern struct dvb_frontend* dst_attach(const struct dst_config* config,
+				       struct i2c_adapter* i2c,
+				       struct bt878 *bt);
+
+#endif // DST_H
diff --git a/drivers/media/dvb/bt8xx/dst_priv.h b/drivers/media/dvb/bt8xx/dst_priv.h
new file mode 100644
index 000000000000..80488aa628b4
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/dst_priv.h
@@ -0,0 +1,36 @@
+/*
+ * dst-bt878.h: part of the DST driver for the TwinHan DST Frontend
+ *
+ * Copyright (C) 2003 Jamie Honan
+ */
+
+struct dst_gpio_enable {
+	u32	mask;
+	u32	enable;
+};
+
+struct dst_gpio_output {
+	u32	mask;
+	u32	highvals;
+};
+
+struct dst_gpio_read {
+	unsigned long value;
+};
+
+union dst_gpio_packet {
+	struct dst_gpio_enable enb;
+	struct dst_gpio_output outp;
+	struct dst_gpio_read rd;
+	int    psize;
+};
+
+#define DST_IG_ENABLE	0
+#define DST_IG_WRITE	1
+#define DST_IG_READ	2
+#define DST_IG_TS       3
+
+struct bt878;
+
+int bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp);
+
diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.c b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
new file mode 100644
index 000000000000..b735397f59aa
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c
@@ -0,0 +1,797 @@
+/*
+ * Bt8xx based DVB adapter driver
+ *
+ * Copyright (C) 2002,2003 Florian Schirmer <jolt@tuxbox.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/bitops.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+
+#include "dvb-bt8xx.h"
+
+#include "bt878.h"
+
+static int debug;
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
+
+#define dprintk( args... ) \
+	do { \
+		if (debug) printk(KERN_DEBUG args); \
+	} while (0)
+
+static void dvb_bt8xx_task(unsigned long data)
+{
+	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *)data;
+
+	//printk("%d ", card->bt->finished_block);
+
+	while (card->bt->last_block != card->bt->finished_block) {
+		(card->bt->TS_Size ? dvb_dmx_swfilter_204 : dvb_dmx_swfilter)
+			(&card->demux,
+			 &card->bt->buf_cpu[card->bt->last_block *
+					    card->bt->block_bytes],
+			 card->bt->block_bytes);
+		card->bt->last_block = (card->bt->last_block + 1) %
+					card->bt->block_count;
+	}
+}
+
+static int dvb_bt8xx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
+	struct dvb_bt8xx_card *card = dvbdmx->priv;
+	int rc;
+
+	dprintk("dvb_bt8xx: start_feed\n");
+
+	if (!dvbdmx->dmx.frontend)
+		return -EINVAL;
+
+	down(&card->lock);
+	card->nfeeds++;
+	rc = card->nfeeds;
+	if (card->nfeeds == 1)
+		bt878_start(card->bt, card->gpio_mode,
+			    card->op_sync_orin, card->irq_err_ignore);
+	up(&card->lock);
+	return rc;
+}
+
+static int dvb_bt8xx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
+	struct dvb_bt8xx_card *card = dvbdmx->priv;
+
+	dprintk("dvb_bt8xx: stop_feed\n");
+
+	if (!dvbdmx->dmx.frontend)
+		return -EINVAL;
+
+	down(&card->lock);
+	card->nfeeds--;
+	if (card->nfeeds == 0)
+		bt878_stop(card->bt);
+	up(&card->lock);
+
+	return 0;
+}
+
+static int is_pci_slot_eq(struct pci_dev* adev, struct pci_dev* bdev)
+{
+	if ((adev->subsystem_vendor == bdev->subsystem_vendor) &&
+		(adev->subsystem_device == bdev->subsystem_device) &&
+		(adev->bus->number == bdev->bus->number) &&
+		(PCI_SLOT(adev->devfn) == PCI_SLOT(bdev->devfn)))
+		return 1;
+	return 0;
+}
+
+static struct bt878 __init *dvb_bt8xx_878_match(unsigned int bttv_nr, struct pci_dev* bttv_pci_dev)
+{
+	unsigned int card_nr;
+
+	/* Hmm, n squared. Hope n is small */
+	for (card_nr = 0; card_nr < bt878_num; card_nr++) {
+		if (is_pci_slot_eq(bt878[card_nr].dev, bttv_pci_dev))
+			return &bt878[card_nr];
+	}
+	return NULL;
+}
+
+
+static int thomson_dtt7579_demod_init(struct dvb_frontend* fe)
+{
+	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x38 };
+	static u8 mt352_reset [] = { 0x50, 0x80 };
+	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
+	static u8 mt352_agc_cfg [] = { 0x67, 0x28, 0x20 };
+	static u8 mt352_gpp_ctl_cfg [] = { 0x8C, 0x33 };
+	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
+
+	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
+	udelay(2000);
+	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
+	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
+
+	mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
+        mt352_write(fe, mt352_gpp_ctl_cfg, sizeof(mt352_gpp_ctl_cfg));
+	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
+
+	return 0;
+}
+
+static int thomson_dtt7579_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf)
+{
+	u32 div;
+	unsigned char bs = 0;
+	unsigned char cp = 0;
+
+	#define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
+	div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
+
+	if (params->frequency < 542000000) cp = 0xb4;
+	else if (params->frequency < 771000000) cp = 0xbc;
+	else cp = 0xf4;
+
+        if (params->frequency == 0) bs = 0x03;
+	else if (params->frequency < 443250000) bs = 0x02;
+	else bs = 0x08;
+
+	pllbuf[0] = 0xc0; // Note: non-linux standard PLL i2c address
+	pllbuf[1] = div >> 8;
+	pllbuf[2] = div & 0xff;
+	pllbuf[3] = cp;
+	pllbuf[4] = bs;
+
+	return 0;
+}
+
+static struct mt352_config thomson_dtt7579_config = {
+
+	.demod_address = 0x0f,
+	.demod_init = thomson_dtt7579_demod_init,
+	.pll_set = thomson_dtt7579_pll_set,
+};
+
+static int cx24108_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
+{
+   u32 freq = params->frequency;
+
+   int i, a, n, pump;
+   u32 band, pll;
+
+
+   u32 osci[]={950000,1019000,1075000,1178000,1296000,1432000,
+               1576000,1718000,1856000,2036000,2150000};
+   u32 bandsel[]={0,0x00020000,0x00040000,0x00100800,0x00101000,
+               0x00102000,0x00104000,0x00108000,0x00110000,
+               0x00120000,0x00140000};
+
+#define XTAL 1011100 /* Hz, really 1.0111 MHz and a /10 prescaler */
+        printk("cx24108 debug: entering SetTunerFreq, freq=%d\n",freq);
+
+        /* This is really the bit driving the tuner chip cx24108 */
+
+        if(freq<950000) freq=950000; /* kHz */
+        if(freq>2150000) freq=2150000; /* satellite IF is 950..2150MHz */
+
+        /* decide which VCO to use for the input frequency */
+        for(i=1;(i<sizeof(osci)/sizeof(osci[0]))&&(osci[i]<freq);i++);
+        printk("cx24108 debug: select vco #%d (f=%d)\n",i,freq);
+        band=bandsel[i];
+        /* the gain values must be set by SetSymbolrate */
+        /* compute the pll divider needed, from Conexant data sheet,
+           resolved for (n*32+a), remember f(vco) is f(receive) *2 or *4,
+           depending on the divider bit. It is set to /4 on the 2 lowest
+           bands  */
+        n=((i<=2?2:1)*freq*10L)/(XTAL/100);
+        a=n%32; n/=32; if(a==0) n--;
+        pump=(freq<(osci[i-1]+osci[i])/2);
+        pll=0xf8000000|
+            ((pump?1:2)<<(14+11))|
+            ((n&0x1ff)<<(5+11))|
+            ((a&0x1f)<<11);
+        /* everything is shifted left 11 bits to left-align the bits in the
+           32bit word. Output to the tuner goes MSB-aligned, after all */
+        printk("cx24108 debug: pump=%d, n=%d, a=%d\n",pump,n,a);
+        cx24110_pll_write(fe,band);
+        /* set vga and vca to their widest-band settings, as a precaution.
+           SetSymbolrate might not be called to set this up */
+        cx24110_pll_write(fe,0x500c0000);
+        cx24110_pll_write(fe,0x83f1f800);
+        cx24110_pll_write(fe,pll);
+/*        writereg(client,0x56,0x7f);*/
+
+	return 0;
+}
+
+static int pinnsat_pll_init(struct dvb_frontend* fe)
+{
+   return 0;
+}
+
+
+static struct cx24110_config pctvsat_config = {
+
+	.demod_address = 0x55,
+	.pll_init = pinnsat_pll_init,
+	.pll_set = cx24108_pll_set,
+};
+
+
+static int microtune_mt7202dtf_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
+{
+	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
+	u8 cfg, cpump, band_select;
+	u8 data[4];
+	u32 div;
+	struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = data, .len = sizeof(data) };
+
+	div = (36000000 + params->frequency + 83333) / 166666;
+	cfg = 0x88;
+
+	if (params->frequency < 175000000) cpump = 2;
+	else if (params->frequency < 390000000) cpump = 1;
+	else if (params->frequency < 470000000) cpump = 2;
+	else if (params->frequency < 750000000) cpump = 2;
+	else cpump = 3;
+
+	if (params->frequency < 175000000) band_select = 0x0e;
+	else if (params->frequency < 470000000) band_select = 0x05;
+	else band_select = 0x03;
+
+	data[0] = (div >> 8) & 0x7f;
+	data[1] = div & 0xff;
+	data[2] = ((div >> 10) & 0x60) | cfg;
+	data[3] = cpump | band_select;
+
+	i2c_transfer(card->i2c_adapter, &msg, 1);
+	return (div * 166666 - 36000000);
+}
+
+static int microtune_mt7202dtf_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
+{
+	struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
+
+	return request_firmware(fw, name, &bt->bt->dev->dev);
+}
+
+static struct sp887x_config microtune_mt7202dtf_config = {
+
+	.demod_address = 0x70,
+	.pll_set = microtune_mt7202dtf_pll_set,
+	.request_firmware = microtune_mt7202dtf_request_firmware,
+};
+
+
+
+static int advbt771_samsung_tdtc9251dh0_demod_init(struct dvb_frontend* fe)
+{
+	static u8 mt352_clock_config [] = { 0x89, 0x38, 0x2d };
+	static u8 mt352_reset [] = { 0x50, 0x80 };
+	static u8 mt352_adc_ctl_1_cfg [] = { 0x8E, 0x40 };
+	static u8 mt352_agc_cfg [] = { 0x67, 0x10, 0x23, 0x00, 0xFF, 0xFF,
+	                               0x00, 0xFF, 0x00, 0x40, 0x40 };
+	static u8 mt352_av771_extra[] = { 0xB5, 0x7A };
+	static u8 mt352_capt_range_cfg[] = { 0x75, 0x32 };
+
+
+	mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
+	udelay(2000);
+	mt352_write(fe, mt352_reset, sizeof(mt352_reset));
+	mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
+
+	mt352_write(fe, mt352_agc_cfg,sizeof(mt352_agc_cfg));
+	udelay(2000);
+	mt352_write(fe, mt352_av771_extra,sizeof(mt352_av771_extra));
+	mt352_write(fe, mt352_capt_range_cfg, sizeof(mt352_capt_range_cfg));
+
+	return 0;
+}
+
+static int advbt771_samsung_tdtc9251dh0_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf)
+{
+	u32 div;
+	unsigned char bs = 0;
+	unsigned char cp = 0;
+
+	#define IF_FREQUENCYx6 217    /* 6 * 36.16666666667MHz */
+	div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6;
+
+	if (params->frequency < 150000000) cp = 0xB4;
+	else if (params->frequency < 173000000) cp = 0xBC;
+	else if (params->frequency < 250000000) cp = 0xB4;
+	else if (params->frequency < 400000000) cp = 0xBC;
+	else if (params->frequency < 420000000) cp = 0xF4;
+	else if (params->frequency < 470000000) cp = 0xFC;
+	else if (params->frequency < 600000000) cp = 0xBC;
+	else if (params->frequency < 730000000) cp = 0xF4;
+	else cp = 0xFC;
+
+	if (params->frequency < 150000000) bs = 0x01;
+	else if (params->frequency < 173000000) bs = 0x01;
+	else if (params->frequency < 250000000) bs = 0x02;
+	else if (params->frequency < 400000000) bs = 0x02;
+	else if (params->frequency < 420000000) bs = 0x02;
+	else if (params->frequency < 470000000) bs = 0x02;
+	else if (params->frequency < 600000000) bs = 0x08;
+	else if (params->frequency < 730000000) bs = 0x08;
+	else bs = 0x08;
+
+	pllbuf[0] = 0xc2; // Note: non-linux standard PLL i2c address
+	pllbuf[1] = div >> 8;
+	pllbuf[2] = div & 0xff;
+	pllbuf[3] = cp;
+	pllbuf[4] = bs;
+
+	return 0;
+}
+
+static struct mt352_config advbt771_samsung_tdtc9251dh0_config = {
+
+	.demod_address = 0x0f,
+	.demod_init = advbt771_samsung_tdtc9251dh0_demod_init,
+	.pll_set = advbt771_samsung_tdtc9251dh0_pll_set,
+};
+
+
+static struct dst_config dst_config = {
+
+	.demod_address = 0x55,
+};
+
+
+static int or51211_request_firmware(struct dvb_frontend* fe, const struct firmware **fw, char* name)
+{
+	struct dvb_bt8xx_card* bt = (struct dvb_bt8xx_card*) fe->dvb->priv;
+
+	return request_firmware(fw, name, &bt->bt->dev->dev);
+}
+
+static void or51211_setmode(struct dvb_frontend * fe, int mode)
+{
+	struct dvb_bt8xx_card *bt = fe->dvb->priv;
+	bttv_write_gpio(bt->bttv_nr, 0x0002, mode);   /* Reset */
+	msleep(20);
+}
+
+static void or51211_reset(struct dvb_frontend * fe)
+{
+	struct dvb_bt8xx_card *bt = fe->dvb->priv;
+
+	/* RESET DEVICE
+	 * reset is controled by GPIO-0
+	 * when set to 0 causes reset and when to 1 for normal op
+	 * must remain reset for 128 clock cycles on a 50Mhz clock
+	 * also PRM1 PRM2 & PRM4 are controled by GPIO-1,GPIO-2 & GPIO-4
+	 * We assume that the reset has be held low long enough or we
+	 * have been reset by a power on.  When the driver is unloaded
+	 * reset set to 0 so if reloaded we have been reset.
+	 */
+	/* reset & PRM1,2&4 are outputs */
+	int ret = bttv_gpio_enable(bt->bttv_nr, 0x001F, 0x001F);
+	if (ret != 0) {
+		printk(KERN_WARNING "or51211: Init Error - Can't Reset DVR "
+		       "(%i)\n", ret);
+	}
+	bttv_write_gpio(bt->bttv_nr, 0x001F, 0x0000);   /* Reset */
+	msleep(20);
+	/* Now set for normal operation */
+	bttv_write_gpio(bt->bttv_nr, 0x0001F, 0x0001);
+	/* wait for operation to begin */
+	msleep(500);
+}
+
+static void or51211_sleep(struct dvb_frontend * fe)
+{
+	struct dvb_bt8xx_card *bt = fe->dvb->priv;
+	bttv_write_gpio(bt->bttv_nr, 0x0001, 0x0000);
+}
+
+static struct or51211_config or51211_config = {
+
+	.demod_address = 0x15,
+	.request_firmware = or51211_request_firmware,
+	.setmode = or51211_setmode,
+	.reset = or51211_reset,
+	.sleep = or51211_sleep,
+};
+
+
+static int vp3021_alps_tded4_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
+{
+	struct dvb_bt8xx_card *card = (struct dvb_bt8xx_card *) fe->dvb->priv;
+	u8 buf[4];
+	u32 div;
+	struct i2c_msg msg = { .addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf) };
+
+	div = (params->frequency + 36166667) / 166667;
+
+	buf[0] = (div >> 8) & 0x7F;
+	buf[1] = div & 0xFF;
+	buf[2] = 0x85;
+	if ((params->frequency >= 47000000) && (params->frequency < 153000000))
+		buf[3] = 0x01;
+	else if ((params->frequency >= 153000000) && (params->frequency < 430000000))
+		buf[3] = 0x02;
+	else if ((params->frequency >= 430000000) && (params->frequency < 824000000))
+		buf[3] = 0x0C;
+	else if ((params->frequency >= 824000000) && (params->frequency < 863000000))
+		buf[3] = 0x8C;
+	else
+		return -EINVAL;
+
+	i2c_transfer(card->i2c_adapter, &msg, 1);
+	return 0;
+}
+
+static struct nxt6000_config vp3021_alps_tded4_config = {
+
+	.demod_address = 0x0a,
+	.clock_inversion = 1,
+	.pll_set = vp3021_alps_tded4_pll_set,
+};
+
+
+static void frontend_init(struct dvb_bt8xx_card *card, u32 type)
+{
+	switch(type) {
+#ifdef BTTV_DVICO_DVBT_LITE
+	case BTTV_DVICO_DVBT_LITE:
+		card->fe = mt352_attach(&thomson_dtt7579_config, card->i2c_adapter);
+		if (card->fe != NULL) {
+			card->fe->ops->info.frequency_min = 174000000;
+			card->fe->ops->info.frequency_max = 862000000;
+			break;
+		}
+		break;
+#endif
+
+#ifdef BTTV_TWINHAN_VP3021
+	case BTTV_TWINHAN_VP3021:
+#else
+	case BTTV_NEBULA_DIGITV:
+#endif
+		card->fe = nxt6000_attach(&vp3021_alps_tded4_config, card->i2c_adapter);
+		if (card->fe != NULL) {
+			break;
+		}
+		break;
+
+	case BTTV_AVDVBT_761:
+		card->fe = sp887x_attach(&microtune_mt7202dtf_config, card->i2c_adapter);
+		if (card->fe != NULL) {
+			break;
+		}
+		break;
+
+	case BTTV_AVDVBT_771:
+		card->fe = mt352_attach(&advbt771_samsung_tdtc9251dh0_config, card->i2c_adapter);
+		if (card->fe != NULL) {
+			card->fe->ops->info.frequency_min = 174000000;
+			card->fe->ops->info.frequency_max = 862000000;
+			break;
+		}
+		break;
+
+	case BTTV_TWINHAN_DST:
+		card->fe = dst_attach(&dst_config, card->i2c_adapter, card->bt);
+		if (card->fe != NULL) {
+			break;
+		}
+		break;
+
+	case BTTV_PINNACLESAT:
+		card->fe = cx24110_attach(&pctvsat_config, card->i2c_adapter);
+		if (card->fe != NULL) {
+			break;
+		}
+		break;
+
+	case BTTV_PC_HDTV:
+		card->fe = or51211_attach(&or51211_config, card->i2c_adapter);
+		if (card->fe != NULL) {
+			break;
+		}
+		break;
+	}
+
+	if (card->fe == NULL) {
+		printk("dvb-bt8xx: A frontend driver was not found for device %04x/%04x subsystem %04x/%04x\n",
+		       card->bt->dev->vendor,
+		       card->bt->dev->device,
+		       card->bt->dev->subsystem_vendor,
+		       card->bt->dev->subsystem_device);
+	} else {
+		if (dvb_register_frontend(card->dvb_adapter, card->fe)) {
+			printk("dvb-bt8xx: Frontend registration failed!\n");
+			if (card->fe->ops->release)
+				card->fe->ops->release(card->fe);
+			card->fe = NULL;
+		}
+	}
+}
+
+static int __init dvb_bt8xx_load_card(struct dvb_bt8xx_card *card, u32 type)
+{
+	int result;
+
+	if ((result = dvb_register_adapter(&card->dvb_adapter, card->card_name,
+					   THIS_MODULE)) < 0) {
+		printk("dvb_bt8xx: dvb_register_adapter failed (errno = %d)\n", result);
+		return result;
+
+	}
+	card->dvb_adapter->priv = card;
+
+	card->bt->adapter = card->i2c_adapter;
+
+	memset(&card->demux, 0, sizeof(struct dvb_demux));
+
+	card->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;
+
+	card->demux.priv = card;
+	card->demux.filternum = 256;
+	card->demux.feednum = 256;
+	card->demux.start_feed = dvb_bt8xx_start_feed;
+	card->demux.stop_feed = dvb_bt8xx_stop_feed;
+	card->demux.write_to_decoder = NULL;
+
+	if ((result = dvb_dmx_init(&card->demux)) < 0) {
+		printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
+
+		dvb_unregister_adapter(card->dvb_adapter);
+		return result;
+	}
+
+	card->dmxdev.filternum = 256;
+	card->dmxdev.demux = &card->demux.dmx;
+	card->dmxdev.capabilities = 0;
+
+	if ((result = dvb_dmxdev_init(&card->dmxdev, card->dvb_adapter)) < 0) {
+		printk("dvb_bt8xx: dvb_dmxdev_init failed (errno = %d)\n", result);
+
+		dvb_dmx_release(&card->demux);
+		dvb_unregister_adapter(card->dvb_adapter);
+		return result;
+	}
+
+	card->fe_hw.source = DMX_FRONTEND_0;
+
+	if ((result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_hw)) < 0) {
+		printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
+
+		dvb_dmxdev_release(&card->dmxdev);
+		dvb_dmx_release(&card->demux);
+		dvb_unregister_adapter(card->dvb_adapter);
+		return result;
+	}
+
+	card->fe_mem.source = DMX_MEMORY_FE;
+
+	if ((result = card->demux.dmx.add_frontend(&card->demux.dmx, &card->fe_mem)) < 0) {
+		printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
+
+		card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
+		dvb_dmxdev_release(&card->dmxdev);
+		dvb_dmx_release(&card->demux);
+		dvb_unregister_adapter(card->dvb_adapter);
+		return result;
+	}
+
+	if ((result = card->demux.dmx.connect_frontend(&card->demux.dmx, &card->fe_hw)) < 0) {
+		printk("dvb_bt8xx: dvb_dmx_init failed (errno = %d)\n", result);
+
+		card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
+		card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
+		dvb_dmxdev_release(&card->dmxdev);
+		dvb_dmx_release(&card->demux);
+		dvb_unregister_adapter(card->dvb_adapter);
+		return result;
+	}
+
+	dvb_net_init(card->dvb_adapter, &card->dvbnet, &card->demux.dmx);
+
+	tasklet_init(&card->bt->tasklet, dvb_bt8xx_task, (unsigned long) card);
+
+	frontend_init(card, type);
+
+	return 0;
+}
+
+static int dvb_bt8xx_probe(struct device *dev)
+{
+	struct bttv_sub_device *sub = to_bttv_sub_dev(dev);
+	struct dvb_bt8xx_card *card;
+	struct pci_dev* bttv_pci_dev;
+	int ret;
+
+	if (!(card = kmalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
+		return -ENOMEM;
+
+	memset(card, 0, sizeof(*card));
+	init_MUTEX(&card->lock);
+	card->bttv_nr = sub->core->nr;
+	strncpy(card->card_name, sub->core->name, sizeof(sub->core->name));
+	card->i2c_adapter = &sub->core->i2c_adap;
+
+	switch(sub->core->type)
+	{
+	case BTTV_PINNACLESAT:
+		card->gpio_mode = 0x0400c060;
+		/* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
+		              BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
+		card->op_sync_orin = 0;
+		card->irq_err_ignore = 0;
+		break;
+
+#ifdef BTTV_DVICO_DVBT_LITE
+	case BTTV_DVICO_DVBT_LITE:
+#endif
+		card->gpio_mode = 0x0400C060;
+		card->op_sync_orin = 0;
+		card->irq_err_ignore = 0;
+		/* 26, 15, 14, 6, 5
+		 * A_PWRDN  DA_DPM DA_SBR DA_IOM_DA
+		 * DA_APP(parallel) */
+		break;
+
+#ifdef BTTV_TWINHAN_VP3021
+	case BTTV_TWINHAN_VP3021:
+#else
+	case BTTV_NEBULA_DIGITV:
+#endif
+	case BTTV_AVDVBT_761:
+		card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
+		card->op_sync_orin = 0;
+		card->irq_err_ignore = 0;
+		/* A_PWRDN DA_SBR DA_APP (high speed serial) */
+		break;
+
+	case BTTV_AVDVBT_771: //case 0x07711461:
+		card->gpio_mode = 0x0400402B;
+		card->op_sync_orin = BT878_RISC_SYNC_MASK;
+		card->irq_err_ignore = 0;
+		/* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
+		break;
+
+	case BTTV_TWINHAN_DST:
+		card->gpio_mode = 0x2204f2c;
+		card->op_sync_orin = BT878_RISC_SYNC_MASK;
+		card->irq_err_ignore = BT878_APABORT | BT878_ARIPERR |
+				       BT878_APPERR | BT878_AFBUS;
+		/* 25,21,14,11,10,9,8,3,2 then
+		 * 0x33 = 5,4,1,0
+		 * A_SEL=SML, DA_MLB, DA_SBR,
+		 * DA_SDR=f, fifo trigger = 32 DWORDS
+		 * IOM = 0 == audio A/D
+		 * DPM = 0 == digital audio mode
+		 * == async data parallel port
+		 * then 0x33 (13 is set by start_capture)
+		 * DA_APP = async data parallel port,
+		 * ACAP_EN = 1,
+		 * RISC+FIFO ENABLE */
+		break;
+
+	case BTTV_PC_HDTV:
+		card->gpio_mode = 0x0100EC7B;
+		card->op_sync_orin = 0;
+		card->irq_err_ignore = 0;
+		break;
+
+	default:
+		printk(KERN_WARNING "dvb_bt8xx: Unknown bttv card type: %d.\n",
+				sub->core->type);
+		kfree(card);
+		return -ENODEV;
+	}
+
+	dprintk("dvb_bt8xx: identified card%d as %s\n", card->bttv_nr, card->card_name);
+
+	if (!(bttv_pci_dev = bttv_get_pcidev(card->bttv_nr))) {
+		printk("dvb_bt8xx: no pci device for card %d\n", card->bttv_nr);
+		kfree(card);
+		return -EFAULT;
+	}
+
+	if (!(card->bt = dvb_bt8xx_878_match(card->bttv_nr, bttv_pci_dev))) {
+		printk("dvb_bt8xx: unable to determine DMA core of card %d,\n",
+		       card->bttv_nr);
+		printk("dvb_bt8xx: if you have the ALSA bt87x audio driver "
+		       "installed, try removing it.\n");
+
+		kfree(card);
+		return -EFAULT;
+
+	}
+
+	init_MUTEX(&card->bt->gpio_lock);
+	card->bt->bttv_nr = sub->core->nr;
+
+	if ( (ret = dvb_bt8xx_load_card(card, sub->core->type)) ) {
+		kfree(card);
+		return ret;
+	}
+
+	dev_set_drvdata(dev, card);
+	return 0;
+}
+
+static int dvb_bt8xx_remove(struct device *dev)
+{
+	struct dvb_bt8xx_card *card = dev_get_drvdata(dev);
+
+	dprintk("dvb_bt8xx: unloading card%d\n", card->bttv_nr);
+
+	bt878_stop(card->bt);
+	tasklet_kill(&card->bt->tasklet);
+	dvb_net_release(&card->dvbnet);
+	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_mem);
+	card->demux.dmx.remove_frontend(&card->demux.dmx, &card->fe_hw);
+	dvb_dmxdev_release(&card->dmxdev);
+	dvb_dmx_release(&card->demux);
+	if (card->fe) dvb_unregister_frontend(card->fe);
+	dvb_unregister_adapter(card->dvb_adapter);
+
+	kfree(card);
+
+	return 0;
+}
+
+static struct bttv_sub_driver driver = {
+	.drv = {
+		.name		= "dvb-bt8xx",
+		.probe		= dvb_bt8xx_probe,
+		.remove		= dvb_bt8xx_remove,
+		/* FIXME:
+		 * .shutdown	= dvb_bt8xx_shutdown,
+		 * .suspend	= dvb_bt8xx_suspend,
+		 * .resume	= dvb_bt8xx_resume,
+		 */
+	},
+};
+
+static int __init dvb_bt8xx_init(void)
+{
+	return bttv_sub_register(&driver, "dvb");
+}
+
+static void __exit dvb_bt8xx_exit(void)
+{
+	bttv_sub_unregister(&driver);
+}
+
+module_init(dvb_bt8xx_init);
+module_exit(dvb_bt8xx_exit);
+
+MODULE_DESCRIPTION("Bt8xx based DVB adapter driver");
+MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.h b/drivers/media/dvb/bt8xx/dvb-bt8xx.h
new file mode 100644
index 000000000000..80ef189f930f
--- /dev/null
+++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.h
@@ -0,0 +1,59 @@
+/*
+ * Bt8xx based DVB adapter driver
+ *
+ * Copyright (C) 2002,2003 Florian Schirmer <jolt@tuxbox.org>
+ * Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@t-online.de>
+ * Copyright (C) 1999-2001 Ralph  Metzler & Marcus Metzler for convergence integrated media GmbH
+ * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
+ *
+ * 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.
+ *
+ */
+
+#ifndef DVB_BT8XX_H
+#define DVB_BT8XX_H
+
+#include <linux/i2c.h>
+#include "dvbdev.h"
+#include "dvb_net.h"
+#include "bttv.h"
+#include "mt352.h"
+#include "sp887x.h"
+#include "dst.h"
+#include "nxt6000.h"
+#include "cx24110.h"
+#include "or51211.h"
+
+struct dvb_bt8xx_card {
+	struct semaphore lock;
+	int nfeeds;
+	char card_name[32];
+	struct dvb_adapter *dvb_adapter;
+	struct bt878 *bt;
+	unsigned int bttv_nr;
+	struct dvb_demux demux;
+	struct dmxdev dmxdev;
+	struct dmx_frontend fe_hw;
+	struct dmx_frontend fe_mem;
+	u32 gpio_mode;
+	u32 op_sync_orin;
+	u32 irq_err_ignore;
+	struct i2c_adapter *i2c_adapter;
+	struct dvb_net dvbnet;
+
+	struct dvb_frontend* fe;
+};
+
+#endif /* DVB_BT8XX_H */