15 files changed, 3694 insertions, 0 deletions

diff --git a/drivers/staging/media/as102/Kconfig b/drivers/staging/media/as102/Kconfig
new file mode 100644
index 000000000000..5865029db0f6
--- /dev/null
+++ b/drivers/staging/media/as102/Kconfig
@@ -0,0 +1,7 @@
+config DVB_AS102
+	tristate "Abilis AS102 DVB receiver"
+	depends on DVB_CORE && USB && I2C && INPUT
+	help
+	  Choose Y or M here if you have a device containing an AS102
+
+	  To compile this driver as a module, choose M here
diff --git a/drivers/staging/media/as102/Makefile b/drivers/staging/media/as102/Makefile
new file mode 100644
index 000000000000..c2334c6c952e
--- /dev/null
+++ b/drivers/staging/media/as102/Makefile
@@ -0,0 +1,5 @@
+dvb-as102-objs := as102_drv.o as102_fw.o as10x_cmd.o as10x_cmd_stream.o as102_fe.o as102_usb_drv.o as10x_cmd_cfg.o
+
+obj-$(CONFIG_DVB_AS102) += dvb-as102.o
+
+EXTRA_CFLAGS += -DLINUX -DCONFIG_AS102_USB -Idrivers/media/dvb/dvb-core
diff --git a/drivers/staging/media/as102/as102_drv.c b/drivers/staging/media/as102/as102_drv.c
new file mode 100644
index 000000000000..c334bffa36e4
--- /dev/null
+++ b/drivers/staging/media/as102/as102_drv.c
@@ -0,0 +1,356 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * 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, 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/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/kref.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+
+/* header file for Usb device driver*/
+#include "as102_drv.h"
+#include "as102_fw.h"
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+#include "dvbdev.h"
+#else
+#warning >>> DVB_CORE not defined !!! <<<
+#endif
+
+int debug = 0;
+module_param_named(debug, debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging (default: off)");
+
+int dual_tuner = 0;
+module_param_named(dual_tuner, dual_tuner, int, 0644);
+MODULE_PARM_DESC(dual_tuner, "Activate Dual-Tuner configuration (default: off)");
+
+static int fw_upload = 1;
+module_param_named(fw_upload, fw_upload, int, 0644);
+MODULE_PARM_DESC(fw_upload, "Turn on/off default FW upload (default: on)");
+
+static int pid_filtering = 0;
+module_param_named(pid_filtering, pid_filtering, int, 0644);
+MODULE_PARM_DESC(pid_filtering, "Activate HW PID filtering (default: off)");
+
+static int ts_auto_disable = 0;
+module_param_named(ts_auto_disable, ts_auto_disable, int, 0644);
+MODULE_PARM_DESC(ts_auto_disable, "Stream Auto Enable on FW (default: off)");
+
+int elna_enable = 1;
+module_param_named(elna_enable, elna_enable, int, 0644);
+MODULE_PARM_DESC(elna_enable, "Activate eLNA (default: on)");
+
+#ifdef DVB_DEFINE_MOD_OPT_ADAPTER_NR
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+#endif
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+static void as102_stop_stream(struct as102_dev_t *dev) {
+	struct as102_bus_adapter_t *bus_adap;
+
+	if (dev != NULL)
+		bus_adap = &dev->bus_adap;
+	else
+		return;
+
+	if (bus_adap->ops->stop_stream != NULL)
+		bus_adap->ops->stop_stream(dev);
+
+	if (ts_auto_disable) {
+		if (mutex_lock_interruptible(&dev->bus_adap.lock))
+			return;
+
+		if (as10x_cmd_stop_streaming(bus_adap) < 0) {
+			dprintk(debug, "as10x_cmd_stop_streaming failed\n");
+		}
+
+		mutex_unlock(&dev->bus_adap.lock);
+	}
+}
+
+static int as102_start_stream(struct as102_dev_t *dev) {
+
+	struct as102_bus_adapter_t *bus_adap;
+	int ret = -EFAULT;
+
+	if (dev != NULL)
+		bus_adap = &dev->bus_adap;
+	else
+		return ret;
+
+	if (bus_adap->ops->start_stream != NULL) {
+		ret = bus_adap->ops->start_stream(dev);
+	}
+
+	if (ts_auto_disable) {
+		if (mutex_lock_interruptible(&dev->bus_adap.lock))
+			return -EFAULT;
+
+		ret = as10x_cmd_start_streaming(bus_adap);
+
+		mutex_unlock(&dev->bus_adap.lock);
+	}
+
+	return ret;
+}
+
+static int as10x_pid_filter(struct as102_dev_t *dev,
+			    int index, u16 pid, int onoff) {
+
+	struct as102_bus_adapter_t *bus_adap = &dev->bus_adap;
+	int ret = -EFAULT;
+
+	ENTER();
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock)) {
+		dprintk(debug, "mutex_lock_interruptible(lock) failed !\n");
+		return -EBUSY;
+	}
+
+	switch(onoff) {
+		case 0:
+			ret = as10x_cmd_del_PID_filter(bus_adap, (uint16_t) pid);
+			dprintk(debug, "DEL_PID_FILTER([%02d] 0x%04x) ret = %d\n",
+					index, pid, ret);
+			break;
+		case 1:
+		{
+			struct as10x_ts_filter filter;
+
+			filter.type = TS_PID_TYPE_TS;
+			filter.idx = 0xFF;
+			filter.pid = pid;
+
+			ret = as10x_cmd_add_PID_filter(bus_adap, &filter);
+			dprintk(debug, "ADD_PID_FILTER([%02d -> %02d], 0x%04x) ret = %d\n",
+					index, filter.idx, filter.pid, ret);
+			break;
+		}
+	}
+
+	mutex_unlock(&dev->bus_adap.lock);
+
+	LEAVE();
+	return ret;
+}
+
+static int as102_dvb_dmx_start_feed(struct dvb_demux_feed *dvbdmxfeed) {
+	int ret = 0;
+	struct dvb_demux *demux = dvbdmxfeed->demux;
+	struct as102_dev_t *as102_dev = demux->priv;
+
+	ENTER();
+
+	if (mutex_lock_interruptible(&as102_dev->sem))
+		return -ERESTARTSYS;
+
+	if (pid_filtering) {
+		as10x_pid_filter(as102_dev,
+				dvbdmxfeed->index, dvbdmxfeed->pid, 1);
+	}
+
+	if (as102_dev->streaming++ == 0) {
+		ret = as102_start_stream(as102_dev);
+	}
+
+	mutex_unlock(&as102_dev->sem);
+	LEAVE();
+	return ret;
+}
+
+static int as102_dvb_dmx_stop_feed(struct dvb_demux_feed *dvbdmxfeed) {
+	struct dvb_demux *demux = dvbdmxfeed->demux;
+	struct as102_dev_t *as102_dev = demux->priv;
+
+	ENTER();
+
+	if (mutex_lock_interruptible(&as102_dev->sem))
+		return -ERESTARTSYS;
+
+	if (--as102_dev->streaming == 0) {
+		as102_stop_stream(as102_dev);
+	}
+
+	if (pid_filtering) {
+		as10x_pid_filter(as102_dev,
+				dvbdmxfeed->index, dvbdmxfeed->pid, 0);
+	}
+
+	mutex_unlock(&as102_dev->sem);
+	LEAVE();
+	return 0;
+}
+#endif
+
+int as102_dvb_register(struct as102_dev_t *as102_dev) {
+	int ret = 0;
+	ENTER();
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+	ret = dvb_register_adapter(&as102_dev->dvb_adap,
+				   DEVICE_FULL_NAME,
+				   THIS_MODULE,
+#if defined(CONFIG_AS102_USB)
+				   &as102_dev->bus_adap.usb_dev->dev
+#elif defined(CONFIG_AS102_SPI)
+				   &as102_dev->bus_adap.spi_dev->dev
+#else
+#error >>> dvb_register_adapter <<<
+#endif
+#ifdef DVB_DEFINE_MOD_OPT_ADAPTER_NR
+				   , adapter_nr
+#endif
+				   );
+	if (ret < 0) {
+		err("%s: dvb_register_adapter() failed (errno = %d)",
+		    __FUNCTION__, ret);
+		goto failed;
+	}
+
+	as102_dev->dvb_dmx.priv = as102_dev;
+	as102_dev->dvb_dmx.filternum = pid_filtering ? 16 : 256;
+	as102_dev->dvb_dmx.feednum = 256;
+	as102_dev->dvb_dmx.start_feed = as102_dvb_dmx_start_feed;
+	as102_dev->dvb_dmx.stop_feed = as102_dvb_dmx_stop_feed;
+
+	as102_dev->dvb_dmx.dmx.capabilities = DMX_TS_FILTERING |
+					      DMX_SECTION_FILTERING;
+
+	as102_dev->dvb_dmxdev.filternum = as102_dev->dvb_dmx.filternum;
+	as102_dev->dvb_dmxdev.demux = &as102_dev->dvb_dmx.dmx;
+	as102_dev->dvb_dmxdev.capabilities = 0;
+
+	if ((ret = dvb_dmx_init(&as102_dev->dvb_dmx)) < 0) {
+		err("%s: dvb_dmx_init() failed (errno = %d)",
+		    __FUNCTION__, ret);
+		goto failed;
+	}
+
+	ret = dvb_dmxdev_init(&as102_dev->dvb_dmxdev, &as102_dev->dvb_adap);
+	if (ret < 0) {
+		err("%s: dvb_dmxdev_init() failed (errno = %d)",
+		    __FUNCTION__, ret);
+		goto failed;
+	}
+
+	ret = as102_dvb_register_fe(as102_dev, &as102_dev->dvb_fe);
+	if (ret < 0) {
+		err("%s: as102_dvb_register_frontend() failed (errno = %d)",
+		    __FUNCTION__, ret);
+		goto failed;
+	}
+#endif
+
+	/* init bus mutex for token locking */
+	mutex_init(&as102_dev->bus_adap.lock);
+
+	/* init start / stop stream mutex */
+	mutex_init(&as102_dev->sem);
+
+#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
+	/*
+	 * try to load as102 firmware. If firmware upload failed, we'll be
+	 * able to upload it later.
+	 */
+	if (fw_upload)
+		try_then_request_module(as102_fw_upload(&as102_dev->bus_adap),
+				"firmware_class");
+#endif
+
+failed:
+	LEAVE();
+	/* FIXME: free dvb_XXX */
+	return ret;
+}
+
+void as102_dvb_unregister(struct as102_dev_t *as102_dev) {
+	ENTER();
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+	/* unregister as102 frontend */
+	as102_dvb_unregister_fe(&as102_dev->dvb_fe);
+
+	/* unregister demux device */
+	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
+	dvb_dmx_release(&as102_dev->dvb_dmx);
+
+	/* unregister dvb adapter */
+	dvb_unregister_adapter(&as102_dev->dvb_adap);
+#endif
+	LEAVE();
+}
+
+static int __init as102_driver_init(void) {
+	int ret = 0;
+
+	ENTER();
+
+	/* register this driver with the low level subsystem */
+#if defined(CONFIG_AS102_USB)
+	ret = usb_register(&as102_usb_driver);
+	if (ret)
+		err("usb_register failed (ret = %d)", ret);
+#endif
+#if defined(CONFIG_AS102_SPI)
+	ret = spi_register_driver(&as102_spi_driver);
+	if (ret)
+		printk(KERN_ERR "spi_register failed (ret = %d)", ret);
+#endif
+
+	LEAVE();
+	return ret;
+}
+
+/*
+ * Mandatory function : Adds a special section to the module indicating
+ * where initialisation function is defined
+ */
+module_init(as102_driver_init);
+
+/**
+ * \brief as102 driver exit point. This function is called when device has
+ *       to be removed.
+ */
+static void __exit as102_driver_exit(void) {
+	ENTER();
+	/* deregister this driver with the low level bus subsystem */
+#if defined(CONFIG_AS102_USB)
+	usb_deregister(&as102_usb_driver);
+#endif
+#if defined(CONFIG_AS102_SPI)
+	spi_unregister_driver(&as102_spi_driver);
+#endif
+	LEAVE();
+}
+
+/*
+ * required function for unload: Adds a special section to the module
+ * indicating where unload function is defined
+ */
+module_exit(as102_driver_exit);
+/* modinfo details */
+MODULE_DESCRIPTION(DRIVER_FULL_NAME);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pierrick Hascoet <pierrick.hascoet@abilis.com>");
+
+/* EOF - vim: set textwidth=80 ts=8 sw=8 sts=8 noet: */
diff --git a/drivers/staging/media/as102/as102_drv.h b/drivers/staging/media/as102/as102_drv.h
new file mode 100644
index 000000000000..f50bb9f67fce
--- /dev/null
+++ b/drivers/staging/media/as102/as102_drv.h
@@ -0,0 +1,146 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * 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, 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.
+ */
+
+#if defined(CONFIG_AS102_USB)
+#include <linux/usb.h>
+extern struct usb_driver as102_usb_driver;
+#endif
+
+#if defined(CONFIG_AS102_SPI)
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/cdev.h>
+
+extern struct spi_driver as102_spi_driver;
+#endif
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dmxdev.h"
+#endif
+
+#define DRIVER_FULL_NAME "Abilis Systems as10x usb driver"
+#define DRIVER_NAME "as10x_usb"
+
+extern int debug;
+
+#define dprintk(debug, args...) \
+	do { if (debug) {	\
+		printk(KERN_DEBUG "%s: ",__FUNCTION__);	\
+		printk(args);	\
+	} } while (0)
+
+#ifdef TRACE
+#define ENTER()                 printk(">> enter %s\n", __FUNCTION__)
+#define LEAVE()                 printk("<< leave %s\n", __FUNCTION__)
+#else
+#define ENTER()
+#define LEAVE()
+#endif
+
+#define AS102_DEVICE_MAJOR	192
+
+#define AS102_USB_BUF_SIZE	512
+#define MAX_STREAM_URB		32
+
+#include "as10x_cmd.h"
+
+#if defined(CONFIG_AS102_USB)
+#include "as102_usb_drv.h"
+#endif
+
+#if defined(CONFIG_AS102_SPI)
+#include "as10x_spi_drv.h"
+#endif
+
+
+struct as102_bus_adapter_t {
+#if defined(CONFIG_AS102_USB)
+	struct usb_device *usb_dev;
+#elif defined(CONFIG_AS102_SPI)
+	struct spi_device *spi_dev;
+	struct cdev cdev; /* spidev raw device */
+
+	struct timer_list timer;
+	struct completion xfer_done;
+#endif
+	/* bus token lock */
+	struct mutex lock;
+	/* low level interface for bus adapter */
+	union as10x_bus_token_t {
+#if defined(CONFIG_AS102_USB)
+		/* usb token */
+		struct as10x_usb_token_cmd_t usb;
+#endif
+#if defined(CONFIG_AS102_SPI)
+		/* spi token */
+		struct as10x_spi_token_cmd_t spi;
+#endif
+	} token;
+
+	/* token cmd xfer id */
+	uint16_t cmd_xid;
+
+	/* as10x command and response for dvb interface*/
+	struct as10x_cmd_t *cmd, *rsp;
+
+	/* bus adapter private ops callback */
+	struct as102_priv_ops_t *ops;
+};
+
+struct as102_dev_t {
+	struct as102_bus_adapter_t bus_adap;
+	struct list_head device_entry;
+	struct kref kref;
+	unsigned long minor;
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+	struct dvb_adapter dvb_adap;
+	struct dvb_frontend dvb_fe;
+	struct dvb_demux dvb_dmx;
+	struct dmxdev dvb_dmxdev;
+#endif
+
+	/* demodulator stats */
+	struct as10x_demod_stats demod_stats;
+	/* signal strength */
+	uint16_t signal_strength;
+	/* bit error rate */
+	uint32_t ber;
+
+	/* timer handle to trig ts stream download */
+	struct timer_list timer_handle;
+
+	struct mutex sem;
+	dma_addr_t dma_addr;
+	void *stream;
+	int streaming;
+	struct urb *stream_urb[MAX_STREAM_URB];
+};
+
+int as102_dvb_register(struct as102_dev_t *dev);
+void as102_dvb_unregister(struct as102_dev_t *dev);
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+int as102_dvb_register_fe(struct as102_dev_t *dev, struct dvb_frontend *fe);
+int as102_dvb_unregister_fe(struct dvb_frontend *dev);
+#endif
+
+/* EOF - vim: set textwidth=80 ts=8 sw=8 sts=8 noet: */
diff --git a/drivers/staging/media/as102/as102_fe.c b/drivers/staging/media/as102/as102_fe.c
new file mode 100644
index 000000000000..3e6f497aed51
--- /dev/null
+++ b/drivers/staging/media/as102/as102_fe.c
@@ -0,0 +1,647 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * 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, 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/version.h>
+
+#include "as102_drv.h"
+#include "as10x_types.h"
+#include "as10x_cmd.h"
+
+extern int elna_enable;
+
+#if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
+static void as10x_fe_copy_tps_parameters(struct dvb_frontend_parameters *dst,
+					 struct as10x_tps *src);
+
+static void as102_fe_copy_tune_parameters(struct as10x_tune_args *dst,
+					  struct dvb_frontend_parameters *src);
+
+static void as102_fe_release(struct dvb_frontend *fe) {
+	struct as102_dev_t *dev;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return;
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+	if (mutex_lock_interruptible(&dev->bus_adap.lock))
+		return;
+
+	/* send abilis command: TURN_OFF */
+	as10x_cmd_turn_off(&dev->bus_adap);
+
+	mutex_unlock(&dev->bus_adap.lock);
+#endif
+
+	/* release frontend callback ops */
+	memset(&fe->ops, 0, sizeof(struct dvb_frontend_ops));
+
+	/* flush statistics */
+	memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
+	dev->signal_strength = 0;
+	dev->ber = -1;
+
+	/* reset tuner private data */
+/* 	fe->tuner_priv = NULL; */
+
+	LEAVE();
+}
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+static int as102_fe_init(struct dvb_frontend *fe) {
+	int ret = 0;
+	struct as102_dev_t *dev;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock))
+		return -EBUSY;
+
+	if (elna_enable)
+		ret = as10x_cmd_set_context(&dev->bus_adap, 1010, 0xC0);
+
+	/* send abilis command: TURN_ON */
+	ret = as10x_cmd_turn_on(&dev->bus_adap);
+
+	mutex_unlock(&dev->bus_adap.lock);
+
+	LEAVE();
+	return (ret < 0) ? -EINVAL : 0;
+}
+#endif
+
+static int as102_fe_set_frontend(struct dvb_frontend *fe,
+				 struct dvb_frontend_parameters *params) {
+	int ret = 0;
+	struct as102_dev_t *dev;
+	struct as10x_tune_args tune_args = { 0 };
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock))
+		return -EBUSY;
+
+	as102_fe_copy_tune_parameters(&tune_args, params);
+
+	/* send abilis command: SET_TUNE */
+	ret =  as10x_cmd_set_tune(&dev->bus_adap, &tune_args);
+	if(ret != 0) {
+		dprintk(debug, "as10x_cmd_set_tune failed. (err = %d)\n", ret);
+	}
+
+	mutex_unlock(&dev->bus_adap.lock);
+
+	LEAVE();
+	return (ret < 0) ? -EINVAL : 0;
+}
+
+static int as102_fe_get_frontend(struct dvb_frontend* fe,
+				 struct dvb_frontend_parameters *p) {
+	int ret = 0;
+	struct as102_dev_t *dev;
+	struct as10x_tps tps = { 0 };
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -EINVAL;
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock))
+		return -EBUSY;
+
+	/* send abilis command: GET_TPS */
+	ret = as10x_cmd_get_tps(&dev->bus_adap, &tps);
+
+	if (ret == 0)
+		as10x_fe_copy_tps_parameters(p, &tps);
+
+	mutex_unlock(&dev->bus_adap.lock);
+
+	LEAVE();
+	return (ret < 0) ? -EINVAL : 0;
+}
+
+static int as102_fe_get_tune_settings(struct dvb_frontend *fe,
+			struct dvb_frontend_tune_settings *settings) {
+	ENTER();
+
+#if 0
+	dprintk(debug, "step_size    = %d\n", settings->step_size);
+	dprintk(debug, "max_drift    = %d\n", settings->max_drift);
+	dprintk(debug, "min_delay_ms = %d -> %d\n", settings->min_delay_ms, 1000);
+#endif
+
+	settings->min_delay_ms = 1000;
+
+	LEAVE();
+	return 0;
+}
+
+
+static int as102_fe_read_status(struct dvb_frontend *fe, fe_status_t *status) {
+	int ret = 0;
+	struct as102_dev_t *dev;
+	struct as10x_tune_status tstate = { 0 };
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock))
+		return -EBUSY;
+
+	/* send abilis command: GET_TUNE_STATUS */
+	ret = as10x_cmd_get_tune_status(&dev->bus_adap, &tstate);
+	if (ret < 0) {
+		dprintk(debug, "as10x_cmd_get_tune_status failed (err = %d)\n", ret);
+		goto out;
+	}
+
+	dev->signal_strength  = tstate.signal_strength;
+	dev->ber  = tstate.BER;
+
+	switch(tstate.tune_state) {
+		case TUNE_STATUS_SIGNAL_DVB_OK:
+			*status = FE_HAS_SIGNAL |
+				  FE_HAS_CARRIER;
+			break;
+		case TUNE_STATUS_STREAM_DETECTED:
+			*status = FE_HAS_SIGNAL  |
+				  FE_HAS_CARRIER |
+				  FE_HAS_SYNC;
+			break;
+		case TUNE_STATUS_STREAM_TUNED:
+			*status = FE_HAS_SIGNAL  |
+				  FE_HAS_CARRIER |
+				  FE_HAS_SYNC	 |
+				  FE_HAS_LOCK;
+			break;
+		default:
+			*status = TUNE_STATUS_NOT_TUNED;
+	}
+
+	dprintk(debug, "tuner status: 0x%02x , strength %d , per: %d , ber: %d\n",
+			tstate.tune_state, tstate.signal_strength,
+			tstate.PER, tstate.BER);
+
+	if (*status & FE_HAS_LOCK) {
+		if (as10x_cmd_get_demod_stats(&dev->bus_adap,
+				(struct as10x_demod_stats *) &dev->demod_stats) < 0) {
+			memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
+			dprintk(debug, "as10x_cmd_get_demod_stats failed (probably not tuned)\n");
+		} else {
+			dprintk(debug, "demod status: fc: 0x%08x , bad fc: 0x%08x , bytes corrected: 0x%08x , MER: 0x%04x\n",
+					dev->demod_stats.frame_count,
+					dev->demod_stats.bad_frame_count,
+					dev->demod_stats.bytes_fixed_by_rs,
+					dev->demod_stats.mer);
+		}
+	} else {
+		memset(&dev->demod_stats, 0, sizeof(dev->demod_stats));
+	}
+
+out:
+	mutex_unlock(&dev->bus_adap.lock);
+	LEAVE();
+	return ret;
+}
+
+/*
+ * Note:
+ * - in AS102 SNR=MER
+ *   - the SNR will be returned in linear terms, i.e. not in dB
+ *   - the accuracy equals ±2dB for a SNR range from 4dB to 30dB
+ *   - the accuracy is >2dB for SNR values outside this range
+ */
+static int as102_fe_read_snr(struct dvb_frontend* fe, u16* snr) {
+	struct as102_dev_t *dev;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	*snr = dev->demod_stats.mer;
+
+	LEAVE();
+	return 0;
+}
+
+static int as102_fe_read_ber(struct dvb_frontend* fe, u32* ber) {
+	struct as102_dev_t *dev;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	*ber = dev->ber;
+
+	LEAVE();
+	return 0;
+}
+
+static int as102_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength) {
+	struct as102_dev_t *dev;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	*strength = (((0xffff * 400) * dev->signal_strength + 41000) * 2);
+
+	LEAVE();
+	return 0;
+}
+
+static int as102_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) {
+	struct as102_dev_t *dev;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	if (dev->demod_stats.has_started)
+		*ucblocks = dev->demod_stats.bad_frame_count;
+	else
+		*ucblocks = 0;
+
+	LEAVE();
+	return 0;
+}
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19))
+static int as102_fe_ts_bus_ctrl(struct dvb_frontend* fe, int acquire) {
+	struct as102_dev_t *dev;
+	int ret;
+
+	ENTER();
+
+	if ((dev = (struct as102_dev_t *) fe->tuner_priv) == NULL)
+		return -ENODEV;
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock))
+		return -EBUSY;
+
+	if (acquire) {
+		if (elna_enable)
+			as10x_cmd_set_context(&dev->bus_adap, 1010, 0xC0);
+
+		ret = as10x_cmd_turn_on(&dev->bus_adap);
+	} else {
+		ret = as10x_cmd_turn_off(&dev->bus_adap);
+	}
+
+	mutex_unlock(&dev->bus_adap.lock);
+
+	LEAVE();
+	return ret;
+}
+#endif
+
+static struct dvb_frontend_ops as102_fe_ops = {
+	.info = {
+		.name			= DEVICE_FULL_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_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QPSK
+			| 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
+	},
+
+	.set_frontend		= as102_fe_set_frontend,
+	.get_frontend		= as102_fe_get_frontend,
+	.get_tune_settings	= as102_fe_get_tune_settings,
+
+
+	.read_status		= as102_fe_read_status,
+	.read_snr		= as102_fe_read_snr,
+	.read_ber		= as102_fe_read_ber,
+	.read_signal_strength	= as102_fe_read_signal_strength,
+	.read_ucblocks		= as102_fe_read_ucblocks,
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19))
+	.ts_bus_ctrl		= as102_fe_ts_bus_ctrl,
+#else
+	.release		= as102_fe_release,
+	.init			= as102_fe_init,
+#endif
+};
+
+int as102_dvb_unregister_fe(struct dvb_frontend *fe) {
+
+	/* unregister frontend */
+	dvb_unregister_frontend(fe);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19))
+	/* detach frontend */
+	dvb_frontend_detach(fe);
+#endif
+	return 0;
+}
+
+int as102_dvb_register_fe(struct as102_dev_t *as102_dev, struct dvb_frontend *dvb_fe) {
+	int errno;
+	struct dvb_adapter *dvb_adap;
+
+	if(as102_dev == NULL)
+		return -EINVAL;
+
+	/* extract dvb_adapter */
+	dvb_adap = &as102_dev->dvb_adap;
+
+	/* init frontend callback ops */
+	memcpy(&dvb_fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
+
+	/* register dbvb frontend */
+	errno = dvb_register_frontend(dvb_adap, dvb_fe);
+	if(errno == 0)
+		dvb_fe->tuner_priv = as102_dev;
+
+	return errno;
+}
+
+static void as10x_fe_copy_tps_parameters(struct dvb_frontend_parameters *dst,
+					 struct as10x_tps *as10x_tps) {
+
+	struct dvb_ofdm_parameters *fe_tps = &dst->u.ofdm;
+
+	/* extract consteallation */
+	switch(as10x_tps->constellation) {
+		case CONST_QPSK:
+			fe_tps->constellation = QPSK;
+			break;
+		case CONST_QAM16:
+			fe_tps->constellation = QAM_16;
+			break;
+		case CONST_QAM64:
+			fe_tps->constellation = QAM_64;
+			break;
+	}
+
+	/* extract hierarchy */
+	switch(as10x_tps->hierarchy) {
+		case HIER_NONE:
+			fe_tps->hierarchy_information = HIERARCHY_NONE;
+			break;
+		case HIER_ALPHA_1:
+			fe_tps->hierarchy_information = HIERARCHY_1;
+			break;
+		case HIER_ALPHA_2:
+			fe_tps->hierarchy_information = HIERARCHY_2;
+			break;
+		case HIER_ALPHA_4:
+			fe_tps->hierarchy_information = HIERARCHY_4;
+			break;
+	}
+
+	/* extract code rate HP */
+	switch(as10x_tps->code_rate_HP) {
+		case CODE_RATE_1_2:
+			fe_tps->code_rate_HP = FEC_1_2;
+			break;
+		case CODE_RATE_2_3:
+			fe_tps->code_rate_HP = FEC_2_3;
+			break;
+		case CODE_RATE_3_4:
+			fe_tps->code_rate_HP = FEC_3_4;
+			break;
+		case CODE_RATE_5_6:
+			fe_tps->code_rate_HP = FEC_5_6;
+			break;
+		case CODE_RATE_7_8:
+			fe_tps->code_rate_HP = FEC_7_8;
+			break;
+	}
+
+	/* extract code rate LP */
+	switch(as10x_tps->code_rate_LP) {
+		case CODE_RATE_1_2:
+			fe_tps->code_rate_LP = FEC_1_2;
+			break;
+		case CODE_RATE_2_3:
+			fe_tps->code_rate_LP = FEC_2_3;
+			break;
+		case CODE_RATE_3_4:
+			fe_tps->code_rate_LP = FEC_3_4;
+			break;
+		case CODE_RATE_5_6:
+			fe_tps->code_rate_LP = FEC_5_6;
+			break;
+		case CODE_RATE_7_8:
+			fe_tps->code_rate_LP = FEC_7_8;
+			break;
+	}
+
+	/* extract guard interval */
+	switch(as10x_tps->guard_interval) {
+		case GUARD_INT_1_32:
+			fe_tps->guard_interval = GUARD_INTERVAL_1_32;
+			break;
+		case GUARD_INT_1_16:
+			fe_tps->guard_interval = GUARD_INTERVAL_1_16;
+			break;
+		case GUARD_INT_1_8:
+			fe_tps->guard_interval = GUARD_INTERVAL_1_8;
+			break;
+		case GUARD_INT_1_4:
+			fe_tps->guard_interval = GUARD_INTERVAL_1_4;
+			break;
+	}
+
+	/* extract transmission mode */
+	switch(as10x_tps->transmission_mode) {
+		case TRANS_MODE_2K:
+			fe_tps->transmission_mode = TRANSMISSION_MODE_2K;
+			break;
+		case TRANS_MODE_8K:
+			fe_tps->transmission_mode = TRANSMISSION_MODE_8K;
+			break;
+	}
+}
+
+static uint8_t as102_fe_get_code_rate(fe_code_rate_t arg) {
+	uint8_t c;
+
+	switch(arg) {
+		case FEC_1_2:
+			c = CODE_RATE_1_2;
+			break;
+		case FEC_2_3:
+			c = CODE_RATE_2_3;
+			break;
+		case FEC_3_4:
+			c = CODE_RATE_3_4;
+			break;
+		case FEC_5_6:
+			c = CODE_RATE_5_6;
+			break;
+		case FEC_7_8:
+			c = CODE_RATE_7_8;
+			break;
+		default:
+			c = CODE_RATE_UNKNOWN;
+			break;
+	}
+
+	return c;
+}
+
+static void as102_fe_copy_tune_parameters(struct as10x_tune_args *tune_args,
+					  struct dvb_frontend_parameters *params) {
+
+	/* set frequency */
+	tune_args->freq = params->frequency / 1000;
+
+	/* fix interleaving_mode */
+	tune_args->interleaving_mode = INTLV_NATIVE;
+
+	switch(params->u.ofdm.bandwidth) {
+		case BANDWIDTH_8_MHZ:
+			tune_args->bandwidth = BW_8_MHZ;
+			break;
+		case BANDWIDTH_7_MHZ: