srenblad
/
artiq
forked from M-Labs/artiq
1
0
Fork 0
Code Pull Requests Activity

satman: load TSCs of downstream devices

This commit is contained in:
Sebastien Bourdeauducq 2018-09-10 20:33:44 +08:00
parent bc1d3fda6a
commit 663432adbd
2 changed files with 39 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
artiq/firmware/satman/main.rs
View File

@ -332,6 +332,7 @@ pub extern fn main() -> i32 {
rep.service();
}
if drtiosat_tsc_loaded() {
info!("TSC loaded");
#[cfg(has_ad9154)]
{
if let Err(e) = board_artiq::jesd204sync::sysref_auto_rtio_align() {
@ -341,6 +342,9 @@ pub extern fn main() -> i32 {
error!("failed to align SYSREF at DAC: {}", e);
}
}
for rep in repeaters.iter() {
rep.sync_tsc();
}
if let Err(e) = drtioaux::send_link(0, &drtioaux::Packet::TSCAck) {
error!("aux packet error: {}", e);
}

40
artiq/firmware/satman/repeater.rs
View File

@ -55,7 +55,7 @@ impl Repeater {
timeout: clock::get_ms() + 100
}
} else {
info!("[REP#{}] link RX went down during ping", self.repno);
error!("[REP#{}] link RX went down during ping", self.repno);
self.state = RepeaterState::Down;
}
}
@ -63,12 +63,17 @@ impl Repeater {
if rep_link_rx_up(self.repno) {
if let Ok(Some(drtioaux::Packet::EchoReply)) = drtioaux::recv_link(self.auxno) {
info!("[REP#{}] remote replied after {} packets", self.repno, ping_count);
// TODO: send TSC, routing table, and rank
if !self.sync_tsc() {
error!("[REP#{}] remote failed to ack TSC", self.repno);
self.state = RepeaterState::Failed;
return;
}
// TODO: send routing table and rank
self.state = RepeaterState::Up;
} else {
if clock::get_ms() > timeout {
if ping_count > 200 {
info!("[REP#{}] ping failed", self.repno);
error!("[REP#{}] ping failed", self.repno);
self.state = RepeaterState::Failed;
} else {
self.state = RepeaterState::SendPing { ping_count: ping_count };
@ -76,7 +81,7 @@ impl Repeater {
}
}
} else {
info!("[REP#{}] link RX went down during ping", self.repno);
error!("[REP#{}] link RX went down during ping", self.repno);
self.state = RepeaterState::Down;
}
}
@ -94,11 +99,36 @@ impl Repeater {
}
}
}
pub fn sync_tsc(&self) -> bool {
let repno = self.repno as usize;
unsafe {
(csr::DRTIOREP[repno].set_time_write)(1);
while (csr::DRTIOREP[repno].set_time_read)() == 1 {}
}
let timeout = clock::get_ms() + 200;
loop {
if !rep_link_rx_up(self.repno) {
return false;
}
if clock::get_ms() > timeout {
return false;
}
// TSCAck is the only aux packet that is sent spontaneously
// by the satellite, in response to a TSC set on the RT link.
if let Ok(Some(drtioaux::Packet::TSCAck)) = drtioaux::recv_link(self.auxno) {
return true;
}
}
}
}
#[cfg(not(has_drtio_routing))]
impl Repeater {
pub fn new(_repno: u8) -> Repeater { Repeater::default() }
pub fn new(_repno: u8) -> Repeater { Repeater::default() }
pub fn service(&self) { }
pub fn sync_tsc(&self) { }
}