25789493c6
tuner_r820t: add manual RF gain setting
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
c5d47b7f04
e4000_init(): use corrected xtal frequency
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Otherwise the tuner would use the uncorrected xtal value
after enabling and disabling the direct sampling mode
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
9b8b0e53f6
add getters for direct sampling and offset tuning mode
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
22549e0da0
rtlsdr_set_direct_sampling(): fix issue when switching between inputs
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Switching back from input 2 to 1 didn't work.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
b70c7d99f1
add function for offset tuning with zero-IF tuners
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
1e67d2a9a3
rtlsdr_demod_write_reg(): return 0 on success
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Thanks to DreamNik for reporting this issue.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
28ea914422
add new product ID
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thanks to Andrew Harrison for reporting it.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
b4e48d9555
rtlsdr_init_baseband: initialize possibly uninitialized registers
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
a48f48e3b1
correct sample frequency with ppm offset
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
35263d0df3
rtlsdr_set_direct_sampling: reset IF freq to 0 on zero-IF tuners
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
143b103061
tuner_fc0013: fix and improve manual LNA gain
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
15b9e7ef02
tuner_fc0013: setting GPIO not needed for filter selection
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The driver selects the VHF/UHF filter via I2C.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
01d8d308fc
disable second ADC in IF mode, make input selectable in DS-mode
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
519406264c
make rtlsdr_close() build on win32 again
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
fc5881d4cd
add support for direct sampling mode
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This commit adds the function rtlsdr_set_direct_sampling()
which can be used to enable/disable a mode where the
RTL2832 acts as a direct sampling receiver.
This mode disables the tuner, and by attaching a long
wire, or better, a 50Ω to 200Ω transformer and a lowpass-
filter to the In-phase ADC input (pin 1 or 2 of the RTL2832,
whereas pin 1 is at the molded dot) it is possible to listen to
shortwave radio stations. The coupling capacitors can be
left in place, but for better results they should be removed.
Tuning in this mode is done with the DDC, and since the
ADC samples with 28.8 MHz, tuning is possible from 0 to
28.8 MHz.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
5a26bd51e7
add initial support for the R820T tuner
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
5f88049c0c
rtlsdr_i2c_rad_reg: fix uninitialized variable
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This could lead to a misdetection of the tuner on some
platforms (E4K instead of FC0013 on the raspberry pi).
Thanks to Christoph Gommel for reporting this issue.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
12 years ago
22b9d82fb5
implement a more robust cancelation mechanism of async reader
12 years ago
b49a8336ee
disable e4k enhanced mixer gain as it seems to have no effect
12 years ago
88cd4b33cf
return RTLSDR_TUNER_UNKNOWN (0) on failure of rtlsdr_get_tuner_type
12 years ago
54fe3eca01
don't print i2c read/write errors for now
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During autodetection of the tuner they are
normal and may cause confusion.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
3dff6f3c26
add pid of MyGica TD312 stick
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
9d0232385b
add debug messages to rtlsdr_read/write_array
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
42a6592e63
disable sample rate correction until we find a proper solution
13 years ago
2ad7b39e2d
rtlsdr_set_tuner_if_gain(): enable i2c repeater
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Thanks to Stefan Sydow for noticing this bug.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
f9b5d7b0a6
apply frequency correction value on the xtal clock directly
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by using this approach both, the tuning frequency and the sample rate
should be corrected at the same time.
13 years ago
7dc15d9fd7
add PIDs for 2 variants of the Terratex NOXON dongle
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
f3cf83e3d7
disable DAGC by default, add control function
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This adds rtlsdr_set_agc_mode() to enable/disable it.
Thanks to Leif Asbrink for finding this setting.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
98d1b864b6
have *_write_reg() functions pass through the return value
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
6ea029d92c
add api function to control the IF gain for E4000 tuners
13 years ago
fc736ae67f
init: disable 4 MHz clock output
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The pin where this clock is outputted is quite close to the
ADC inputs, so better disable it.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
b09628b3e8
fix symbol visibility for automake builds
13 years ago
e5afd9894d
tuner_fc0012: add manual gain support
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
1686a0f905
add another PID for Noxon v1 stick
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
9d58aec8cf
correctly clear DDC shift and if_freq registers
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This fixes the 2 kHz LO shift.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
7bd3933c41
introduce getters for tuner parameters (gain, type)
13 years ago
352e50df43
add PID for Zaapa ZT-MINDVBZP
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
4031d6ed04
tuner_fc0012: use new cleaned-up driver
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The driver was taken from http://git.linuxtv.org/ and adapted
for librtlsdr. Manual gain will be added in a follow-up commit.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
bcb8f2b28a
cache real sample rate with 1Hz resolution instead of the desired rate
13 years ago
6d34b04b42
tuner_fc0013: use new cleaned-up driver
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The driver was taken from http://git.linuxtv.org/ and adapted
for librtlsdr. Also, fc0013_set_gain() was added.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
cf8e78646a
Add support for PROlectrix dongle
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Incorporate support for the PROlectrix DV107669 which appears to
be another variant of G-Tek RTL2832U device. This has a FC0012
tuner.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
505f40d9a0
introduce api function to read usb string descriptors
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This API allows to read manufacturer and product names as well as the
serial number advertized by the device on the bus.
13 years ago
fdc7bc978b
add an initial version of rtl_test
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This tool allows to check for lost samples (and thus check the USB
connection), as well as benchmark the Elonics E4000 tunable range.
(-t switch)
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
73f54be2ed
#include <math.h> was not needed.
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Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
589e96e8d8
Using a #define for constant 2^22 (not pow())
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pow() might require the math library to be linked with
rtl-sdl (e.g. when compiling with clang), even though
it's actually constant.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
c426e94093
rename rtl-sdr.c to librtlsdr.c
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Having rtl_sdr.c for the application and rtl-sdr.c for the lib
caused a bit of confusion...
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
cdfd1cf775
fix a memory leak by unreferencing libusb devices
13 years ago
8402124e6f
enable i2c repeater mode before applying filter bandwidth
13 years ago
e9251da6e2
reset internally cached gain/freq values on setter failure
13 years ago
86c34428aa
use new E4000 tuner driver, allow manual gain
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Many thanks to Hoernchen for making the driver work properly
and adding manual gain!
Signed-off-by: Steve Markgraf <steve@steve-m.de>
13 years ago
Steve Markgraf
Dimitri Stolnikov
David J. Fiddes
Christian Vogel