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use super::{Tuner, TunerInfo};
use usb::RtlSdrDeviceHandle;
const R82XX_IF_FREQ: u32 = 3570000;
pub struct R820T {
pub device: TunerInfo,
// pub handle: &'a RtlSdrDeviceHandle,
}
pub const TUNER_ID: &str = "r820t";
pub const TUNER_INFO: TunerInfo = TunerInfo {
id: TUNER_ID,
name: "Rafael Micro R820T",
i2c_addr: 0x34,
check_addr: 0x00,
check_val: 0x69,
// gains: vec![
// 0, 9, 14, 27, 37, 77, 87, 125, 144, 157, 166, 197, 207, 229, 254, 280, 297, 328, 338, 364,
// 372, 386, 402, 421, 434, 439, 445, 480, 496,
// ],
};
impl R820T {
pub fn new(handle: &RtlSdrDeviceHandle) -> R820T {
let tuner = R820T { device: TUNER_INFO };
tuner.init(handle);
tuner
}
}
impl Drop for R820T {
fn drop(&mut self) {
self.exit();
}
}
impl Tuner for R820T {
fn init(&self, handle: &RtlSdrDeviceHandle) {
// disable Zero-IF mode
handle.demod_write_reg(1, 0xb1, 0x1a, 1);
// only enable In-phase ADC input
handle.demod_write_reg(0, 0x08, 0x4d, 1);
// the R82XX use 3.57 MHz IF for the DVB-T 6 MHz mode, and
// 4.57 MHz for the 8 MHz mode
handle.set_if_freq(R82XX_IF_FREQ);
// enable spectrum inversion
handle.demod_write_reg(1, 0x15, 0x01, 1);
}
fn exit(&self) {}
fn set_freq(&self, _freq: u32) {
unimplemented!()
}
fn set_bw(&self, _bw: u32, _handle: &RtlSdrDeviceHandle) {
unimplemented!()
}
fn set_gain(&self, _gain: u32) {
unimplemented!()
}
fn set_if_gain(&self, _if_gain: u32) {
unimplemented!()
}
fn set_gain_mode(&self, _mode: bool) {
unimplemented!()
}
fn display(&self) -> &str {
self.device.name
}
}
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