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runtime/rtio_clocking: Deduplicate/document input selection [nfc]

This commit is contained in:
David Nadlinger 2022-12-04 04:00:48 +00:00
parent 740543d4e2
commit 3c7a394eff
1 changed files with 13 additions and 20 deletions
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33
artiq/firmware/runtime/rtio_clocking.rs
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@ -117,6 +117,17 @@ pub mod crg {
pub fn check() -> bool { true } pub fn check() -> bool { true }
} }
// Si5324 input to select for locking to an external clock (as opposed to
// a recovered link clock in DRTIO satellites, which is handled elsewhere).
#[cfg(all(si5324_as_synthesizer, soc_platform = "kasli", hw_rev = "v2.0"))]
const SI5324_EXT_INPUT: si5324::Input = si5324::Input::Ckin1;
#[cfg(all(si5324_as_synthesizer, soc_platform = "kasli", not(hw_rev = "v2.0")))]
const SI5324_EXT_INPUT: si5324::Input = si5324::Input::Ckin2;
#[cfg(all(si5324_as_synthesizer, soc_platform = "metlino"))]
const SI5324_EXT_INPUT: si5324::Input = si5324::Input::Ckin2;
#[cfg(all(si5324_as_synthesizer, soc_platform = "kc705"))]
const SI5324_EXT_INPUT: si5324::Input = si5324::Input::Ckin2;
#[cfg(si5324_as_synthesizer)] #[cfg(si5324_as_synthesizer)]
fn setup_si5324_as_synthesizer(cfg: RtioClock) { fn setup_si5324_as_synthesizer(cfg: RtioClock) {
let si5324_settings = match cfg { let si5324_settings = match cfg {
@ -212,35 +223,17 @@ fn setup_si5324_as_synthesizer(cfg: RtioClock) {
} }
} }
}; };
si5324::setup(&si5324_settings, SI5324_EXT_INPUT).expect("cannot initialize Si5324");
#[cfg(all(soc_platform = "kasli", hw_rev = "v2.0"))]
let si5324_ref_input = si5324::Input::Ckin1;
#[cfg(all(soc_platform = "kasli", not(hw_rev = "v2.0")))]
let si5324_ref_input = si5324::Input::Ckin2;
#[cfg(soc_platform = "metlino")]
let si5324_ref_input = si5324::Input::Ckin2;
#[cfg(soc_platform = "kc705")]
let si5324_ref_input = si5324::Input::Ckin2;
si5324::setup(&si5324_settings, si5324_ref_input).expect("cannot initialize Si5324");
} }
pub fn init() { pub fn init() {
let clock_cfg = get_rtio_clock_cfg(); let clock_cfg = get_rtio_clock_cfg();
#[cfg(si5324_as_synthesizer)] #[cfg(si5324_as_synthesizer)]
{ {
#[cfg(all(soc_platform = "kasli", hw_rev = "v2.0"))]
let si5324_ext_input = si5324::Input::Ckin1;
#[cfg(all(soc_platform = "kasli", not(hw_rev = "v2.0")))]
let si5324_ext_input = si5324::Input::Ckin2;
#[cfg(soc_platform = "metlino")]
let si5324_ext_input = si5324::Input::Ckin2;
#[cfg(soc_platform = "kc705")]
let si5324_ext_input = si5324::Input::Ckin2;
match clock_cfg { match clock_cfg {
RtioClock::Ext0_Bypass => { RtioClock::Ext0_Bypass => {
info!("using external RTIO clock with PLL bypass"); info!("using external RTIO clock with PLL bypass");
si5324::bypass(si5324_ext_input).expect("cannot bypass Si5324") si5324::bypass(SI5324_EXT_INPUT).expect("cannot bypass Si5324")
}, },
_ => setup_si5324_as_synthesizer(clock_cfg), _ => setup_si5324_as_synthesizer(clock_cfg),
} }