Initial

32 files changed, 12894 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0d9484d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+build/*
+*.a
+*.so
+*.so.1
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..2388da1
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,41 @@
+PROJECT=r820t
+CC=gcc
+CFLAGS=
+INCLUDE=-I./include 
+INCLUDE+=`pkg-config --cflags libusb`
+LDFLAGS=
+LDFLAGS+=`pkg-config --libs libusb`
+
+SOURCES=
+SRC_LIB=
+OBJ_LIB=
+SRC_UTILS=
+OBJ_UTILS=
+
+BUILD_DIR=build/
+
+include src/make.mk
+include utils/make.mk
+
+OBJECTS=$(SOURCES:.c=.o)
+
+lib: src-lib
+
+utils: $(DIR)-pre $(OBJ_UTILS)
+
+all: $(OBJECTS)
+
+make: $(OBJECTS)
+	echo $(OBJECTS)
+
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $(BUILD_DIR)$@
+
+clean:
+	rm -f *.a
+	rm -f *.so
+	rm -f *.so.1
+	rm -f build/src/*.o
+	rm -f build/utils/rtl_*
+	rm -f build/utils/convenience/*.o
diff --git a/build/src/.empty b/build/src/.empty
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/build/src/.empty
diff --git a/build/utils/convenience/.empty b/build/utils/convenience/.empty
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/build/utils/convenience/.empty
diff --git a/include/reg_field.h b/include/reg_field.h
new file mode 100644
index 0000000..18a6922
--- /dev/null
+++ b/include/reg_field.h
@@ -0,0 +1,60 @@
+#ifndef _REG_FIELD_H
+#define _REG_FIELD_H
+
+#include <stdint.h>
+#include <stdarg.h>
+
+enum cmd_op {
+	CMD_OP_GET	= (1 << 0),
+	CMD_OP_SET	= (1 << 1),
+	CMD_OP_EXEC	= (1 << 2),
+};
+
+enum pstate {
+	ST_IN_CMD,
+	ST_IN_ARG,
+};
+
+struct strbuf {
+	uint8_t idx;
+	char buf[32];
+};
+
+struct cmd_state {
+	struct strbuf cmd;
+	struct strbuf arg;
+	enum pstate state;
+	void (*out)(const char *format, va_list ap);
+};
+
+struct cmd {
+	const char *cmd;
+	uint32_t ops;
+	int (*cb)(struct cmd_state *cs, enum cmd_op op, const char *cmd,
+		  int argc, char **argv);
+	const char *help;
+};
+
+/* structure describing a field in a register */
+struct reg_field {
+	uint8_t reg;
+	uint8_t shift;
+	uint8_t width;
+};
+
+struct reg_field_ops {
+	const struct reg_field *fields;
+	const char **field_names;
+	uint32_t num_fields;
+	void *data;
+	int (*write_cb)(void *data, uint32_t reg, uint32_t val);
+	uint32_t (*read_cb)(void *data, uint32_t reg);
+};
+
+uint32_t reg_field_read(struct reg_field_ops *ops, struct reg_field *field);
+int reg_field_write(struct reg_field_ops *ops, struct reg_field *field, uint32_t val);
+int reg_field_cmd(struct cmd_state *cs, enum cmd_op op,
+		  const char *cmd, int argc, char **argv,
+		  struct reg_field_ops *ops);
+
+#endif
diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h
new file mode 100644
index 0000000..fe64bea
--- /dev/null
+++ b/include/rtl-sdr.h
@@ -0,0 +1,387 @@
+/*
+ * rtl-sdr, turns your Realtek RTL2832 based DVB dongle into a SDR receiver
+ * Copyright (C) 2012-2013 by Steve Markgraf <steve@steve-m.de>
+ * Copyright (C) 2012 by Dimitri Stolnikov <horiz0n@gmx.net>
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __RTL_SDR_H
+#define __RTL_SDR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <rtl-sdr_export.h>
+
+typedef struct rtlsdr_dev rtlsdr_dev_t;
+
+RTLSDR_API uint32_t rtlsdr_get_device_count(void);
+
+RTLSDR_API const char* rtlsdr_get_device_name(uint32_t index);
+
+/*!
+ * Get USB device strings.
+ *
+ * NOTE: The string arguments must provide space for up to 256 bytes.
+ *
+ * \param index the device index
+ * \param manufact manufacturer name, may be NULL
+ * \param product product name, may be NULL
+ * \param serial serial number, may be NULL
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_get_device_usb_strings(uint32_t index,
+					     char *manufact,
+					     char *product,
+					     char *serial);
+
+/*!
+ * Get device index by USB serial string descriptor.
+ *
+ * \param serial serial string of the device
+ * \return device index of first device where the name matched
+ * \return -1 if name is NULL
+ * \return -2 if no devices were found at all
+ * \return -3 if devices were found, but none with matching name
+ */
+RTLSDR_API int rtlsdr_get_index_by_serial(const char *serial);
+
+RTLSDR_API int rtlsdr_open(rtlsdr_dev_t **dev, uint32_t index);
+
+RTLSDR_API int rtlsdr_close(rtlsdr_dev_t *dev);
+
+/* configuration functions */
+
+/*!
+ * Set crystal oscillator frequencies used for the RTL2832 and the tuner IC.
+ *
+ * Usually both ICs use the same clock. Changing the clock may make sense if
+ * you are applying an external clock to the tuner or to compensate the
+ * frequency (and samplerate) error caused by the original (cheap) crystal.
+ *
+ * NOTE: Call this function only if you fully understand the implications.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param rtl_freq frequency value used to clock the RTL2832 in Hz
+ * \param tuner_freq frequency value used to clock the tuner IC in Hz
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_xtal_freq(rtlsdr_dev_t *dev, uint32_t rtl_freq,
+				    uint32_t tuner_freq);
+
+/*!
+ * Get crystal oscillator frequencies used for the RTL2832 and the tuner IC.
+ *
+ * Usually both ICs use the same clock.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param rtl_freq frequency value used to clock the RTL2832 in Hz
+ * \param tuner_freq frequency value used to clock the tuner IC in Hz
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_get_xtal_freq(rtlsdr_dev_t *dev, uint32_t *rtl_freq,
+				    uint32_t *tuner_freq);
+
+/*!
+ * Get USB device strings.
+ *
+ * NOTE: The string arguments must provide space for up to 256 bytes.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param manufact manufacturer name, may be NULL
+ * \param product product name, may be NULL
+ * \param serial serial number, may be NULL
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_get_usb_strings(rtlsdr_dev_t *dev, char *manufact,
+				      char *product, char *serial);
+
+/*!
+ * Write the device EEPROM
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param data buffer of data to be written
+ * \param offset address where the data should be written
+ * \param len length of the data
+ * \return 0 on success
+ * \return -1 if device handle is invalid
+ * \return -2 if EEPROM size is exceeded
+ * \return -3 if no EEPROM was found
+ */
+
+RTLSDR_API int rtlsdr_write_eeprom(rtlsdr_dev_t *dev, uint8_t *data,
+				  uint8_t offset, uint16_t len);
+
+/*!
+ * Read the device EEPROM
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param data buffer where the data should be written
+ * \param offset address where the data should be read from
+ * \param len length of the data
+ * \return 0 on success
+ * \return -1 if device handle is invalid
+ * \return -2 if EEPROM size is exceeded
+ * \return -3 if no EEPROM was found
+ */
+
+RTLSDR_API int rtlsdr_read_eeprom(rtlsdr_dev_t *dev, uint8_t *data,
+				  uint8_t offset, uint16_t len);
+
+RTLSDR_API int rtlsdr_set_center_freq(rtlsdr_dev_t *dev, uint32_t freq);
+
+/*!
+ * Get actual frequency the device is tuned to.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return 0 on error, frequency in Hz otherwise
+ */
+RTLSDR_API uint32_t rtlsdr_get_center_freq(rtlsdr_dev_t *dev);
+
+/*!
+ * Set the frequency correction value for the device.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param ppm correction value in parts per million (ppm)
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_freq_correction(rtlsdr_dev_t *dev, int ppm);
+
+/*!
+ * Get actual frequency correction value of the device.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return correction value in parts per million (ppm)
+ */
+RTLSDR_API int rtlsdr_get_freq_correction(rtlsdr_dev_t *dev);
+
+enum rtlsdr_tuner {
+	RTLSDR_TUNER_UNKNOWN = 0,
+	RTLSDR_TUNER_E4000,
+	RTLSDR_TUNER_FC0012,
+	RTLSDR_TUNER_FC0013,
+	RTLSDR_TUNER_FC2580,
+	RTLSDR_TUNER_R820T,
+	RTLSDR_TUNER_R828D
+};
+
+/*!
+ * Get the tuner type.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return RTLSDR_TUNER_UNKNOWN on error, tuner type otherwise
+ */
+RTLSDR_API enum rtlsdr_tuner rtlsdr_get_tuner_type(rtlsdr_dev_t *dev);
+
+/*!
+ * Get a list of gains supported by the tuner.
+ *
+ * NOTE: The gains argument must be preallocated by the caller. If NULL is
+ * being given instead, the number of available gain values will be returned.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param gains array of gain values. In tenths of a dB, 115 means 11.5 dB.
+ * \return <= 0 on error, number of available (returned) gain values otherwise
+ */
+RTLSDR_API int rtlsdr_get_tuner_gains(rtlsdr_dev_t *dev, int *gains);
+
+/*!
+ * Set the gain for the device.
+ * Manual gain mode must be enabled for this to work.
+ *
+ * Valid gain values (in tenths of a dB) for the E4000 tuner:
+ * -10, 15, 40, 65, 90, 115, 140, 165, 190,
+ * 215, 240, 290, 340, 420, 430, 450, 470, 490
+ *
+ * Valid gain values may be queried with \ref rtlsdr_get_tuner_gains function.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param gain in tenths of a dB, 115 means 11.5 dB.
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_tuner_gain(rtlsdr_dev_t *dev, int gain);
+
+/*!
+ * Set the bandwidth for the device.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param bw bandwidth in Hz. Zero means automatic BW selection.
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_tuner_bandwidth(rtlsdr_dev_t *dev, uint32_t bw);
+
+/*!
+ * Get actual gain the device is configured to.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return 0 on error, gain in tenths of a dB, 115 means 11.5 dB.
+ */
+RTLSDR_API int rtlsdr_get_tuner_gain(rtlsdr_dev_t *dev);
+
+/*!
+ * Set the intermediate frequency gain for the device.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param stage intermediate frequency gain stage number (1 to 6 for E4000)
+ * \param gain in tenths of a dB, -30 means -3.0 dB.
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_tuner_if_gain(rtlsdr_dev_t *dev, int stage, int gain);
+
+/*!
+ * Set the gain mode (automatic/manual) for the device.
+ * Manual gain mode must be enabled for the gain setter function to work.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param manual gain mode, 1 means manual gain mode shall be enabled.
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_tuner_gain_mode(rtlsdr_dev_t *dev, int manual);
+
+/*!
+ * Set the sample rate for the device, also selects the baseband filters
+ * according to the requested sample rate for tuners where this is possible.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param samp_rate the sample rate to be set, possible values are:
+ * 		    225001 - 300000 Hz
+ * 		    900001 - 3200000 Hz
+ * 		    sample loss is to be expected for rates > 2400000
+ * \return 0 on success, -EINVAL on invalid rate
+ */
+RTLSDR_API int rtlsdr_set_sample_rate(rtlsdr_dev_t *dev, uint32_t rate);
+
+/*!
+ * Get actual sample rate the device is configured to.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return 0 on error, sample rate in Hz otherwise
+ */
+RTLSDR_API uint32_t rtlsdr_get_sample_rate(rtlsdr_dev_t *dev);
+
+/*!
+ * Enable test mode that returns an 8 bit counter instead of the samples.
+ * The counter is generated inside the RTL2832.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param test mode, 1 means enabled, 0 disabled
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_testmode(rtlsdr_dev_t *dev, int on);
+
+/*!
+ * Enable or disable the internal digital AGC of the RTL2832.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param digital AGC mode, 1 means enabled, 0 disabled
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_agc_mode(rtlsdr_dev_t *dev, int on);
+
+/*!
+ * Enable or disable the direct sampling mode. When enabled, the IF mode
+ * of the RTL2832 is activated, and rtlsdr_set_center_freq() will control
+ * the IF-frequency of the DDC, which can be used to tune from 0 to 28.8 MHz
+ * (xtal frequency of the RTL2832).
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param on 0 means disabled, 1 I-ADC input enabled, 2 Q-ADC input enabled
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_direct_sampling(rtlsdr_dev_t *dev, int on);
+
+/*!
+ * Get state of the direct sampling mode
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return -1 on error, 0 means disabled, 1 I-ADC input enabled
+ *	    2 Q-ADC input enabled
+ */
+RTLSDR_API int rtlsdr_get_direct_sampling(rtlsdr_dev_t *dev);
+
+/*!
+ * Enable or disable offset tuning for zero-IF tuners, which allows to avoid
+ * problems caused by the DC offset of the ADCs and 1/f noise.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param on 0 means disabled, 1 enabled
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_set_offset_tuning(rtlsdr_dev_t *dev, int on);
+
+/*!
+ * Get state of the offset tuning mode
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return -1 on error, 0 means disabled, 1 enabled
+ */
+RTLSDR_API int rtlsdr_get_offset_tuning(rtlsdr_dev_t *dev);
+
+/* streaming functions */
+
+RTLSDR_API int rtlsdr_reset_buffer(rtlsdr_dev_t *dev);
+
+RTLSDR_API int rtlsdr_read_sync(rtlsdr_dev_t *dev, void *buf, int len, int *n_read);
+
+typedef void(*rtlsdr_read_async_cb_t)(unsigned char *buf, uint32_t len, void *ctx);
+
+/*!
+ * Read samples from the device asynchronously. This function will block until
+ * it is being canceled using rtlsdr_cancel_async()
+ *
+ * NOTE: This function is deprecated and is subject for removal.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param cb callback function to return received samples
+ * \param ctx user specific context to pass via the callback function
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_wait_async(rtlsdr_dev_t *dev, rtlsdr_read_async_cb_t cb, void *ctx);
+
+/*!
+ * Read samples from the device asynchronously. This function will block until
+ * it is being canceled using rtlsdr_cancel_async()
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param cb callback function to return received samples
+ * \param ctx user specific context to pass via the callback function
+ * \param buf_num optional buffer count, buf_num * buf_len = overall buffer size
+ *		  set to 0 for default buffer count (15)
+ * \param buf_len optional buffer length, must be multiple of 512,
+ *		  should be a multiple of 16384 (URB size), set to 0
+ *		  for default buffer length (16 * 32 * 512)
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_read_async(rtlsdr_dev_t *dev,
+				 rtlsdr_read_async_cb_t cb,
+				 void *ctx,
+				 uint32_t buf_num,
+				 uint32_t buf_len);
+
+/*!
+ * Cancel all pending asynchronous operations on the device.
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return 0 on success
+ */
+RTLSDR_API int rtlsdr_cancel_async(rtlsdr_dev_t *dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTL_SDR_H */
diff --git a/include/rtl-sdr_export.h b/include/rtl-sdr_export.h
new file mode 100644
index 0000000..69e178d
--- /dev/null
+++ b/include/rtl-sdr_export.h
@@ -0,0 +1,47 @@
+/*
+ * rtl-sdr, turns your Realtek RTL2832 based DVB dongle into a SDR receiver
+ * Copyright (C) 2012 by Hoernchen <la@tfc-server.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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef RTLSDR_EXPORT_H
+#define RTLSDR_EXPORT_H
+
+#if defined __GNUC__
+#  if __GNUC__ >= 4
+#    define __SDR_EXPORT   __attribute__((visibility("default")))
+#    define __SDR_IMPORT   __attribute__((visibility("default")))
+#  else
+#    define __SDR_EXPORT
+#    define __SDR_IMPORT
+#  endif
+#elif _MSC_VER
+#  define __SDR_EXPORT     __declspec(dllexport)
+#  define __SDR_IMPORT     __declspec(dllimport)
+#else
+#  define __SDR_EXPORT
+#  define __SDR_IMPORT
+#endif
+
+#ifndef rtlsdr_STATIC
+#	ifdef rtlsdr_EXPORTS
+#	define RTLSDR_API __SDR_EXPORT
+#	else
+#	define RTLSDR_API __SDR_IMPORT
+#	endif
+#else
+#define RTLSDR_API
+#endif
+#endif /* RTLSDR_EXPORT_H */
diff --git a/include/rtlsdr_i2c.h b/include/rtlsdr_i2c.h
new file mode 100644
index 0000000..7676689
--- /dev/null
+++ b/include/rtlsdr_i2c.h
@@ -0,0 +1,8 @@
+#ifndef __I2C_H
+#define __I2C_H
+
+uint32_t rtlsdr_get_tuner_clock(void *dev);
+int rtlsdr_i2c_write_fn(void *dev, uint8_t addr, uint8_t *buf, int len);
+int rtlsdr_i2c_read_fn(void *dev, uint8_t addr, uint8_t *buf, int len);
+
+#endif
diff --git a/include/tuner_e4k.h b/include/tuner_e4k.h
new file mode 100644
index 0000000..79591ce
--- /dev/null
+++ b/include/tuner_e4k.h
@@ -0,0 +1,222 @@
+#ifndef _E4K_TUNER_H
+#define _E4K_TUNER_H
+
+/*
+ * Elonics E4000 tuner driver
+ *
+ * (C) 2011-2012 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2012 by Sylvain Munaut <tnt@246tNt.com>
+ * (C) 2012 by Hoernchen <la@tfc-server.de>
+ *
+ * All Rights Reserved
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#define E4K_I2C_ADDR	0xc8
+#define E4K_CHECK_ADDR	0x02
+#define E4K_CHECK_VAL	0x40
+
+enum e4k_reg {
+	E4K_REG_MASTER1		= 0x00,
+	E4K_REG_MASTER2		= 0x01,
+	E4K_REG_MASTER3		= 0x02,
+	E4K_REG_MASTER4		= 0x03,
+	E4K_REG_MASTER5		= 0x04,
+	E4K_REG_CLK_INP		= 0x05,
+	E4K_REG_REF_CLK		= 0x06,
+	E4K_REG_SYNTH1		= 0x07,
+	E4K_REG_SYNTH2		= 0x08,
+	E4K_REG_SYNTH3		= 0x09,
+	E4K_REG_SYNTH4		= 0x0a,
+	E4K_REG_SYNTH5		= 0x0b,
+	E4K_REG_SYNTH6		= 0x0c,
+	E4K_REG_SYNTH7		= 0x0d,
+	E4K_REG_SYNTH8		= 0x0e,
+	E4K_REG_SYNTH9		= 0x0f,
+	E4K_REG_FILT1		= 0x10,
+	E4K_REG_FILT2		= 0x11,
+	E4K_REG_FILT3		= 0x12,
+	// gap
+	E4K_REG_GAIN1		= 0x14,
+	E4K_REG_GAIN2		= 0x15,
+	E4K_REG_GAIN3		= 0x16,
+	E4K_REG_GAIN4		= 0x17,
+	// gap
+	E4K_REG_AGC1		= 0x1a,
+	E4K_REG_AGC2		= 0x1b,
+	E4K_REG_AGC3		= 0x1c,
+	E4K_REG_AGC4		= 0x1d,
+	E4K_REG_AGC5		= 0x1e,
+	E4K_REG_AGC6		= 0x1f,
+	E4K_REG_AGC7		= 0x20,
+	E4K_REG_AGC8		= 0x21,
+	// gap
+	E4K_REG_AGC11		= 0x24,
+	E4K_REG_AGC12		= 0x25,
+	// gap
+	E4K_REG_DC1		= 0x29,
+	E4K_REG_DC2		= 0x2a,
+	E4K_REG_DC3		= 0x2b,
+	E4K_REG_DC4		= 0x2c,
+	E4K_REG_DC5		= 0x2d,
+	E4K_REG_DC6		= 0x2e,
+	E4K_REG_DC7		= 0x2f,
+	E4K_REG_DC8		= 0x30,
+	// gap
+	E4K_REG_QLUT0		= 0x50,
+	E4K_REG_QLUT1		= 0x51,
+	E4K_REG_QLUT2		= 0x52,
+	E4K_REG_QLUT3		= 0x53,
+	// gap
+	E4K_REG_ILUT0		= 0x60,
+	E4K_REG_ILUT1		= 0x61,
+	E4K_REG_ILUT2		= 0x62,
+	E4K_REG_ILUT3		= 0x63,
+	// gap
+	E4K_REG_DCTIME1		= 0x70,
+	E4K_REG_DCTIME2		= 0x71,
+	E4K_REG_DCTIME3		= 0x72,
+	E4K_REG_DCTIME4		= 0x73,
+	E4K_REG_PWM1		= 0x74,
+	E4K_REG_PWM2		= 0x75,
+	E4K_REG_PWM3		= 0x76,
+	E4K_REG_PWM4		= 0x77,
+	E4K_REG_BIAS		= 0x78,
+	E4K_REG_CLKOUT_PWDN	= 0x7a,
+	E4K_REG_CHFILT_CALIB	= 0x7b,
+	E4K_REG_I2C_REG_ADDR	= 0x7d,
+	// FIXME
+};
+
+#define E4K_MASTER1_RESET	(1 << 0)
+#define E4K_MASTER1_NORM_STBY	(1 << 1)
+#define E4K_MASTER1_POR_DET	(1 << 2)
+
+#define E4K_SYNTH1_PLL_LOCK	(1 << 0)
+#define E4K_SYNTH1_BAND_SHIF	1
+
+#define E4K_SYNTH7_3PHASE_EN	(1 << 3)
+
+#define E4K_SYNTH8_VCOCAL_UPD	(1 << 2)
+
+#define E4K_FILT3_DISABLE	(1 << 5)
+
+#define E4K_AGC1_LIN_MODE	(1 << 4)
+#define E4K_AGC1_LNA_UPDATE	(1 << 5)
+#define E4K_AGC1_LNA_G_LOW	(1 << 6)
+#define E4K_AGC1_LNA_G_HIGH	(1 << 7)
+
+#define E4K_AGC6_LNA_CAL_REQ	(1 << 4)
+
+#define E4K_AGC7_MIX_GAIN_AUTO	(1 << 0)
+#define E4K_AGC7_GAIN_STEP_5dB	(1 << 5)
+
+#define E4K_AGC8_SENS_LIN_AUTO	(1 << 0)
+
+#define E4K_AGC11_LNA_GAIN_ENH	(1 << 0)
+
+#define E4K_DC1_CAL_REQ		(1 << 0)
+
+#define E4K_DC5_I_LUT_EN	(1 << 0)
+#define E4K_DC5_Q_LUT_EN	(1 << 1)
+#define E4K_DC5_RANGE_DET_EN	(1 << 2)
+#define E4K_DC5_RANGE_EN	(1 << 3)
+#define E4K_DC5_TIMEVAR_EN	(1 << 4)
+
+#define E4K_CLKOUT_DISABLE	0x96
+
+#define E4K_CHFCALIB_CMD	(1 << 0)
+
+#define E4K_AGC1_MOD_MASK	0xF
+
+enum e4k_agc_mode {
+	E4K_AGC_MOD_SERIAL		= 0x0,
+	E4K_AGC_MOD_IF_PWM_LNA_SERIAL	= 0x1,
+	E4K_AGC_MOD_IF_PWM_LNA_AUTONL	= 0x2,
+	E4K_AGC_MOD_IF_PWM_LNA_SUPERV	= 0x3,
+	E4K_AGC_MOD_IF_SERIAL_LNA_PWM	= 0x4,
+	E4K_AGC_MOD_IF_PWM_LNA_PWM	= 0x5,
+	E4K_AGC_MOD_IF_DIG_LNA_SERIAL	= 0x6,
+	E4K_AGC_MOD_IF_DIG_LNA_AUTON	= 0x7,
+	E4K_AGC_MOD_IF_DIG_LNA_SUPERV	= 0x8,
+	E4K_AGC_MOD_IF_SERIAL_LNA_AUTON	= 0x9,
+	E4K_AGC_MOD_IF_SERIAL_LNA_SUPERV = 0xa,
+};
+
+enum e4k_band {
+	E4K_BAND_VHF2	= 0,
+	E4K_BAND_VHF3	= 1,
+	E4K_BAND_UHF	= 2,
+	E4K_BAND_L	= 3,
+};
+
+enum e4k_mixer_filter_bw {
+	E4K_F_MIX_BW_27M	= 0,
+	E4K_F_MIX_BW_4M6	= 8,
+	E4K_F_MIX_BW_4M2	= 9,
+	E4K_F_MIX_BW_3M8	= 10,
+	E4K_F_MIX_BW_3M4	= 11,
+	E4K_F_MIX_BW_3M		= 12,
+	E4K_F_MIX_BW_2M7	= 13,
+	E4K_F_MIX_BW_2M3	= 14,
+	E4K_F_MIX_BW_1M9	= 15,
+};
+
+enum e4k_if_filter {
+	E4K_IF_FILTER_MIX,
+	E4K_IF_FILTER_CHAN,
+	E4K_IF_FILTER_RC
+};
+struct e4k_pll_params {
+	uint32_t fosc;
+	uint32_t intended_flo;
+	uint32_t flo;
+	uint16_t x;
+	uint8_t z;
+	uint8_t r;
+	uint8_t r_idx;
+	uint8_t threephase;
+};
+
+struct e4k_state {
+	void *i2c_dev;
+	uint8_t i2c_addr;
+	enum e4k_band band;
+	struct e4k_pll_params vco;
+	void *rtl_dev;
+};
+
+int e4k_init(struct e4k_state *e4k);
+int e4k_standby(struct e4k_state *e4k, int enable);
+int e4k_if_gain_set(struct e4k_state *e4k, uint8_t stage, int8_t value);
+int e4k_mixer_gain_set(struct e4k_state *e4k, int8_t value);
+int e4k_commonmode_set(struct e4k_state *e4k, int8_t value);
+int e4k_tune_freq(struct e4k_state *e4k, uint32_t freq);
+int e4k_tune_params(struct e4k_state *e4k, struct e4k_pll_params *p);
+uint32_t e4k_compute_pll_params(struct e4k_pll_params *oscp, uint32_t fosc, uint32_t intended_flo);
+int e4k_if_filter_bw_get(struct e4k_state *e4k, enum e4k_if_filter filter);
+int e4k_if_filter_bw_set(struct e4k_state *e4k, enum e4k_if_filter filter,
+		         uint32_t bandwidth);
+int e4k_if_filter_chan_enable(struct e4k_state *e4k, int on);
+int e4k_rf_filter_set(struct e4k_state *e4k);
+
+int e4k_manual_dc_offset(struct e4k_state *e4k, int8_t iofs, int8_t irange, int8_t qofs, int8_t qrange);
+int e4k_dc_offset_calibrate(struct e4k_state *e4k);
+int e4k_dc_offset_gen_table(struct e4k_state *e4k);
+
+int e4k_set_lna_gain(struct e4k_state *e4k, int32_t gain);
+int e4k_enable_manual_gain(struct e4k_state *e4k, uint8_t manual);
+int e4k_set_enh_gain(struct e4k_state *e4k, int32_t gain);
+#endif /* _E4K_TUNER_H */
diff --git a/include/tuner_fc0012.h b/include/tuner_fc0012.h
new file mode 100644
index 0000000..9dd5356
--- /dev/null
+++ b/include/tuner_fc0012.h
@@ -0,0 +1,36 @@
+/*
+ * Fitipower FC0012 tuner driver
+ *
+ * Copyright (C) 2012 Hans-Frieder Vogt <hfvogt@gmx.net>
+ *
+ * modified for use in librtlsdr
+ * Copyright (C) 2012 Steve Markgraf <steve@steve-m.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 _FC0012_H_
+#define _FC0012_H_
+
+#define FC0012_I2C_ADDR		0xc6
+#define FC0012_CHECK_ADDR	0x00
+#define FC0012_CHECK_VAL	0xa1
+
+int fc0012_init(void *dev);
+int fc0012_set_params(void *dev, uint32_t freq, uint32_t bandwidth);
+int fc0012_set_gain(void *dev, int gain);
+
+#endif
diff --git a/include/tuner_fc0013.h b/include/tuner_fc0013.h
new file mode 100644
index 0000000..68a26ee
--- /dev/null
+++ b/include/tuner_fc0013.h
@@ -0,0 +1,37 @@
+/*
+ * Fitipower FC0013 tuner driver
+ *
+ * Copyright (C) 2012 Hans-Frieder Vogt <hfvogt@gmx.net>
+ *
+ * modified for use in librtlsdr
+ * Copyright (C) 2012 Steve Markgraf <steve@steve-m.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 _FC0013_H_
+#define _FC0013_H_
+
+#define FC0013_I2C_ADDR		0xc6
+#define FC0013_CHECK_ADDR	0x00
+#define FC0013_CHECK_VAL	0xa3
+</