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lib: if freq

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This commit is contained in:
Hoernchen
2013-06-15 01:24:26 +02:00
parent bee537dc01
commit 3c7bc948f1
2 changed files with 30 additions and 0 deletions
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29
host/libhackrf/src/hackrf.c
View File

@ -64,6 +64,7 @@ typedef enum {
HACKRF_VENDOR_REQUEST_SET_LNA_GAIN = 19,
HACKRF_VENDOR_REQUEST_SET_VGA_GAIN = 20,
HACKRF_VENDOR_REQUEST_SET_TXVGA_GAIN = 21,
HACKRF_VENDOR_REQUEST_SET_IF_FREQ = 22,
} hackrf_vendor_request;
typedef enum {
@ -958,6 +959,34 @@ int ADDCALL hackrf_set_txvga_gain(hackrf_device* device, uint32_t value)
}
}
int ADDCALL hackrf_set_if_freq(hackrf_device* device, const uint32_t freq_mhz)
{
int result;
if(freq_mhz < 2300 || freq_mhz > 2700)
{
return HACKRF_ERROR_INVALID_PARAM;
}
result = libusb_control_transfer(
device->usb_device,
LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE,
HACKRF_VENDOR_REQUEST_SET_IF_FREQ,
0,
freq_mhz,
NULL,
0,
0
);
if( result != 0 )
{
return HACKRF_ERROR_LIBUSB;
} else {
return HACKRF_SUCCESS;
}
}
static void* transfer_threadproc(void* arg)
{
hackrf_device* device = (hackrf_device*)arg;

1
host/libhackrf/src/hackrf.h
View File

@ -128,6 +128,7 @@ extern ADDAPI int ADDCALL hackrf_board_id_read(hackrf_device* device, uint8_t* v
extern ADDAPI int ADDCALL hackrf_version_string_read(hackrf_device* device, char* version, uint8_t length);
extern ADDAPI int ADDCALL hackrf_set_freq(hackrf_device* device, const uint64_t freq_hz);
extern ADDAPI int ADDCALL hackrf_set_if_freq(hackrf_device* device, const uint32_t freq_mhz);
/* currently 8-20Mhz - either as a fraction, i.e. freq 20000000hz divider 2 -> 10Mhz or as plain old 10000000hz (double)
preferred rates are 8, 10, 12.5, 16, 20Mhz due to less jitter */