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use super::{Tuner, TunerInfo};
use usb::RtlSdrDeviceHandle;
pub const TUNER_ID: &str = "r820t";
pub const TUNER_NAME: &str = "Rafael Micro R820T";
const I2C_ADDR: u8 = 0x34;
const CHECK_ADDR: u8 = 0x00;
const CHECK_VAL: u8 = 0x69;
const IF_FREQ: u32 = 3570000;
const REG_SHADOW_START: u8 = 5;
const NUM_REGS: usize = 30;
const NUM_IMR: usize = 5;
const IMR_TRIAL: u8 = 9;
enum Chip {
R820T,
R620D,
R828D,
R828,
R828S,
R820C,
}
enum TunerType {
Radio,
AnalogTv,
DigitalTv,
}
enum XtalCapValue {
XtalLowCap30P,
XtalLowCap20P,
XtalLowCap10P,
XtalLowCap0P,
XtalHighCap0P,
}
pub struct R820T {
pub device: TunerInfo,
regs: [u8; NUM_REGS],
buf: [u8; NUM_REGS + 1],
xtal_cal_sel: XtalCapValue,
pll: u16, // kHz
int_freq: u32,
fil_cal_code: u8,
input: u8,
has_lock: i16, // bool?
init_done: i16, // bool?
delsys: u32,
tuner_type: TunerType,
bw: u32, // MHz
}
pub struct FreqRange {
freq: u32,
open_d: u8,
rf_mux_ploy: u8,
tf_c: u8,
xtal_cap20p: u8,
xtal_cap10p: u8,
xtal_cap0p: u8,
}
pub struct Config {
i2c_addr: u8,
xtal: u32,
chip: Chip,
max_i2c_msg_len: u16,
use_predetect: i16, // bool?
}
pub const TUNER_INFO: TunerInfo = TunerInfo {
id: TUNER_ID,
name: TUNER_NAME,
i2c_addr: I2C_ADDR,
check_addr: CHECK_ADDR,
check_val: CHECK_VAL,
// 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,
// ],
};
// starts from REG_SHADOW_START
const INITIAL_REGS: [u8; NUM_REGS] = vec![
0x83, 0x32, 0x75, 0xc0, 0x40, 0xd6, 0x6c, 0xf5, 0x63, 0x75, 0x68, 0x6c, 0x83, 0x80, 0x00, 0x0f,
0x00, 0xc0, 0x30, 0x48, 0xcc, 0x60, 0x00, 0x54, 0xae, 0x4a, 0xc0,
];
const FREQ_RANGES: [(u32, u8, u8, u8, u8, u8, u8); 21] = [
(000, 0x08, 0x02, 0xdf, 0x02, 0x01, 0x00),
(050, 0x08, 0x02, 0xbe, 0x02, 0x01, 0x00),
(055, 0x08, 0x02, 0x8b, 0x02, 0x01, 0x00),
(060, 0x08, 0x02, 0x7b, 0x02, 0x01, 0x00),
(065, 0x08, 0x02, 0x69, 0x02, 0x01, 0x00),
(070, 0x08, 0x02, 0x58, 0x02, 0x01, 0x00),
(075, 0x00, 0x02, 0x44, 0x02, 0x01, 0x00),
(080, 0x00, 0x02, 0x44, 0x02, 0x01, 0x00),
(090, 0x00, 0x02, 0x34, 0x01, 0x01, 0x00),
(100, 0x00, 0x02, 0x34, 0x01, 0x01, 0x00),
(110, 0x00, 0x02, 0x24, 0x01, 0x01, 0x00),
(120, 0x00, 0x02, 0x24, 0x01, 0x01, 0x00),
(140, 0x00, 0x02, 0x14, 0x01, 0x01, 0x00),
(180, 0x00, 0x02, 0x13, 0x00, 0x00, 0x00),
(220, 0x00, 0x02, 0x13, 0x00, 0x00, 0x00),
(250, 0x00, 0x02, 0x11, 0x00, 0x00, 0x00),
(280, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00),
(310, 0x00, 0x41, 0x00, 0x00, 0x00, 0x00),
(450, 0x00, 0x41, 0x00, 0x00, 0x00, 0x00),
(588, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00),
(650, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00),
];
const XTAL_CAPS: [(u8, XtalCapValue); 5] = [
(0x0b, XtalCapValue::XtalLowCap30P),
(0x02, XtalCapValue::XtalLowCap20P),
(0x01, XtalCapValue::XtalLowCap10P),
(0x00, XtalCapValue::XtalLowCap0P),
(0x10, XtalCapValue::XtalHighCap0P),
];
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(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_bandwidth(&self, bw: u16, rate: u32, handle: &RtlSdrDeviceHandle) {
let mut rc: u16;
let mut real_bw: u16 = 0;
let mut reg_0a: u8;
let mut reg_0b: u8;
if bw > 7000000 {}
}
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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