diff options
| author | Christian Daniel <cd@maintech.de> | 2013-02-07 19:36:29 +0100 |
|---|---|---|
| committer | Christian Daniel <cd@maintech.de> | 2013-02-07 19:36:29 +0100 |
| commit | 5ee4d33c02239f4b46dabe2dd1ba1e252d49f3c3 (patch) | |
| tree | 38fc4d4c0b54c66023c4c06d8d41ff24dd2c5b8b | |
| parent | c0383b32a3c54ab233399a5d858a5b1eb7c0eece (diff) | |
libosmosdr: add call to configure E4K DC offset
| -rw-r--r-- | software/libosmosdr/include/osmosdr.h | 2 | ||||
| -rw-r--r-- | software/libosmosdr/src/libosmosdr.c | 13 |
2 files changed, 15 insertions, 0 deletions
diff --git a/software/libosmosdr/include/osmosdr.h b/software/libosmosdr/include/osmosdr.h index 7246a78..11f2fff 100644 --- a/software/libosmosdr/include/osmosdr.h +++ b/software/libosmosdr/include/osmosdr.h @@ -139,6 +139,8 @@ OSMOSDR_API int osmosdr_set_tuner_mixer_gain(osmosdr_dev_t *dev, int gain); OSMOSDR_API int osmosdr_set_tuner_mixer_enh(osmosdr_dev_t *dev, int enh); /* set IF stages gain */ OSMOSDR_API int osmosdr_set_tuner_if_gain(osmosdr_dev_t *dev, int stage, int gain); +/* set DC offset registers */ +OSMOSDR_API int osmosdr_set_tuner_dc_offset(osmosdr_dev_t *dev, int iofs, int qofs); /*! * Get a list of sample rates supported by the device. diff --git a/software/libosmosdr/src/libosmosdr.c b/software/libosmosdr/src/libosmosdr.c index afa21d2..f08ec40 100644 --- a/software/libosmosdr/src/libosmosdr.c +++ b/software/libosmosdr/src/libosmosdr.c @@ -419,6 +419,19 @@ int osmosdr_set_tuner_if_gain(osmosdr_dev_t *dev, int stage, int gain) buffer, sizeof(buffer), CTRL_TIMEOUT); } +int osmosdr_set_tuner_dc_offset(osmosdr_dev_t *dev, int iofs, int qofs) +{ + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + uint8_t buffer[2]; + + buffer[0] = iofs; + buffer[1] = qofs; + + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 0x08), 0, + buffer, sizeof(buffer), CTRL_TIMEOUT); +} + /* two raised to the power of n */ #define TWO_POW(n) (1ULL<<(n)) |