diff options
| -rw-r--r-- | software/libosmosdr/src/libosmosdr.c | 108 |
1 files changed, 103 insertions, 5 deletions
diff --git a/software/libosmosdr/src/libosmosdr.c b/software/libosmosdr/src/libosmosdr.c index 0a01320..10e15d7 100644 --- a/software/libosmosdr/src/libosmosdr.c +++ b/software/libosmosdr/src/libosmosdr.c @@ -105,9 +105,105 @@ static osmosdr_dongle_t known_devices[] = { #define CTRL_IN (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_IN) #define CTRL_OUT (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT) +#define FUNC(group, function) ((group << 8) | function) + #define CTRL_TIMEOUT 300 #define BULK_TIMEOUT 0 +int e4k_init(void *dev) { + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 0), 0, + NULL, 0, CTRL_TIMEOUT); +} + +int e4k_exit(void *dev) { return 0; } + +int e4k_set_freq(void *dev, uint32_t freq) { + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + uint8_t buffer[4]; + + buffer[0] = (uint8_t)(freq >> 24); + buffer[1] = (uint8_t)(freq >> 16); + buffer[2] = (uint8_t)(freq >> 8); + buffer[3] = (uint8_t)(freq >> 0); + + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 5), 0, + buffer, 4, CTRL_TIMEOUT); +} + +int e4k_set_bw(void *dev, int bw) { return 0; } + +int e4k_set_lna_gain(void *dev, int32_t gain) { + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + uint8_t buffer[4]; + + buffer[0] = (uint8_t)(gain >> 24); + buffer[1] = (uint8_t)(gain >> 16); + buffer[2] = (uint8_t)(gain >> 8); + buffer[3] = (uint8_t)(gain >> 0); + + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 0x0b), 0, + buffer, 4, CTRL_TIMEOUT); +} + +int e4k_mixer_gain_set(void *dev, int8_t gain) { + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + uint8_t buffer[1]; + + buffer[0] = gain; + + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 0x0d), 0, + buffer, 1, CTRL_TIMEOUT); +} + +int e4k_set_enh_gain(void *dev, int32_t gain) { + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + uint8_t buffer[4]; + + buffer[0] = (uint8_t)(gain >> 24); + buffer[1] = (uint8_t)(gain >> 16); + buffer[2] = (uint8_t)(gain >> 8); + buffer[3] = (uint8_t)(gain >> 0); + + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 0x0d), 0, + buffer, 4, CTRL_TIMEOUT); +} + +int e4k_set_gain(void *dev, int gain) { + int8_t mixgain = (gain > 340) ? 12 : 4; + int enhgain = (gain - 420); + if(e4k_set_lna_gain(dev, min(300, gain - 40)) == -EINVAL) + return -1; + if(e4k_mixer_gain_set(dev, mixgain) == -EINVAL) + return -1; + if(enhgain >= 0) + if(e4k_set_enh_gain(dev, enhgain) == -EINVAL) + return -1; + return 0; +} + +int e4k_set_gain_mode(void *dev, int manual) { + osmosdr_dev_t* devt = (osmosdr_dev_t*)dev; + uint8_t buffer[1]; + + buffer[0] = (uint8_t)manual; + + return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07, + FUNC(3, 0x0c), 0, + buffer, 1, CTRL_TIMEOUT); +} + +static osmosdr_tuner_t tuner = { + e4k_init, e4k_exit, + e4k_set_freq, + e4k_set_bw, e4k_set_gain, e4k_set_gain_mode +}; + int osmosdr_set_xtal_freq(osmosdr_dev_t *dev, uint32_t adc_clock, uint32_t tun_clock) { int r = 0; @@ -209,7 +305,7 @@ int osmosdr_set_center_freq(osmosdr_dev_t *dev, uint32_t freq) return -1; if (dev->tuner->set_freq) { - /* TODO: r = dev->tuner->set_freq(dev, freq); */ + r = dev->tuner->set_freq(dev, freq); } if (!r) @@ -236,7 +332,7 @@ int osmosdr_set_tuner_gain(osmosdr_dev_t *dev, int gain) return -1; if (dev->tuner->set_gain) { - /* TODO: r = dev->tuner->set_gain((void *)dev, gain); */ + r = dev->tuner->set_gain((void *)dev, gain); } if (!r) @@ -263,7 +359,7 @@ int osmosdr_set_tuner_gain_mode(osmosdr_dev_t *dev, int mode) return -1; if (dev->tuner->set_gain_mode) { - /* TODO: r = dev->tuner->set_gain_mode((void *)dev, mode); */ + r = dev->tuner->set_gain_mode((void *)dev, mode); } return r; @@ -281,7 +377,7 @@ int osmosdr_set_sample_rate(osmosdr_dev_t *dev, uint32_t samp_rate) samp_rate = MAX_SAMP_RATE; if (dev->tuner && dev->tuner->set_bw) { - /* TODO: dev->tuner->set_bw(dev, samp_rate); */ + dev->tuner->set_bw(dev, samp_rate); } if (!r) @@ -486,12 +582,14 @@ int osmosdr_open(osmosdr_dev_t **out_dev, uint32_t index) /* TODO: osmosdr_init_baseband(dev); */ + dev->tuner = &tuner; /* so far we support only one tuner */ + found: if (dev->tuner) { dev->tun_clock = dev->adc_clock; if (dev->tuner->init) { - /* TODO: r = dev->tuner->init(dev); */ + r = dev->tuner->init(dev); } } |