Port tx_disable-related code from Kasli

Signed-off-by: Egor Savkin <es@m-labs.hk>
This commit is contained in:
Egor Savkin 2023-02-15 17:44:01 +08:00
parent 8230a01701
commit b4b7912c40
3 changed files with 46 additions and 18 deletions

View File

@ -32,6 +32,7 @@ use crate::moninj;
use crate::mgmt;
use crate::analyzer;
use crate::rtio_mgt::{self, resolve_channel_name};
use crate::io_expander;
#[cfg(has_drtio)]
use crate::pl;
@ -380,7 +381,7 @@ async fn handle_connection(stream: &mut TcpStream, control: Rc<RefCell<kernel::C
}
}
pub fn main(timer: GlobalTimer, cfg: Config) {
pub fn main(timer: GlobalTimer, cfg: Config, mut io_expander0: io_expander::IoExpander, mut io_expander1: io_expander::IoExpander) {
let net_addresses = net_settings::get_addresses(&cfg);
info!("network addresses: {}", net_addresses);
@ -494,6 +495,11 @@ pub fn main(timer: GlobalTimer, cfg: Config) {
let _ = stream.flush().await;
let _ = stream.abort().await;
});
#[cfg(feature = "target_kasli_soc")]
{
io_expander0.service().expect("I2C I/O expander #0 service failed");
io_expander1.service().expect("I2C I/O expander #1 service failed");
}
}
});

View File

@ -1,7 +1,8 @@
use crate::pl::csr;
use crate::i2c;
use log::info;
// Only the bare minimum registers. Bits/IO connections equivalent between IC types.
#[cfg(feature = "target_kasli_soc")]
struct Registers {
// PCA9539 equivalent register names in comments
iodira: u8, // Configuration Port 0
@ -10,6 +11,7 @@ struct Registers {
gpiob: u8, // Output Port 1
}
#[cfg(feature = "target_kasli_soc")]
pub struct IoExpander {
busno: i32,
port: u8,
@ -21,8 +23,18 @@ pub struct IoExpander {
registers: Registers,
}
#[cfg(not(feature = "target_kasli_soc"))]
pub struct IoExpander;
#[cfg(not(feature = "target_kasli_soc"))]
impl IoExpander {
pub fn new(index: u8) -> Result<Self, &'static str> {
Ok(IoExpander {})
}
}
#[cfg(feature = "target_kasli_soc")]
impl IoExpander {
pub fn new(index: u8) -> Result<Self, &'static str> {
const VIRTUAL_LED_MAPPING0: [(u8, u8, u8); 2] = [(0, 0, 6), (1, 1, 6)];
const VIRTUAL_LED_MAPPING1: [(u8, u8, u8); 2] = [(2, 0, 6), (3, 1, 6)];
@ -62,8 +74,7 @@ impl IoExpander {
_ => return Err("incorrect I/O expander index"),
};
if !io_expander.check_ack()? {
#[cfg(feature = "log")]
log::info!(
info!(
"MCP23017 io expander {} not found. Checking for PCA9539.",
index
);
@ -81,19 +92,13 @@ impl IoExpander {
Ok(io_expander)
}
#[cfg(feature = "target_kasli_soc")]
fn select(&self) -> Result<(), &'static str> {
let mask: i32 = 1 << self.port;
i2c::switch_select(self.busno, 0x70, mask);
i2c::switch_select(self.busno, 0x71, (mask >> 8));
let mask: u16 = 1 << self.port;
i2c::switch_select(self.busno, 0x70, mask as u8 as i32);
i2c::switch_select(self.busno, 0x71, (mask >> 8) as u8 as i32);
Ok(())
}
#[cfg(not(feature = "target_kasli_soc"))]
fn select(&self) -> Result<(), &'static str> {
Err("the target is not supported yet")
}
fn write(&self, addr: u8, value: u8) -> Result<(), &'static str> {
i2c::start(self.busno);
i2c::write(self.busno, self.address as i32);
@ -148,8 +153,7 @@ impl IoExpander {
}
pub fn service(&mut self) -> Result<(), &'static str> {
for (led, port, bit) in self.virtual_led_mapping.iter() {
//let level = unsafe { (csr::virtual_leds::status_read() >> led) & 1 };
for (_led, port, bit) in self.virtual_led_mapping.iter() {
self.set(*port, *bit, true);
}

View File

@ -46,7 +46,6 @@ mod mgmt;
mod analyzer;
mod irq;
mod i2c;
#[cfg(feature = "target_kasli_soc")]
mod io_expander;
static mut SEEN_ASYNC_ERRORS: u8 = 0;
@ -116,6 +115,25 @@ pub fn main_core0() {
i2c::init();
let (mut io_expander0, mut io_expander1) = (io_expander::IoExpander::new(0).unwrap(), io_expander::IoExpander::new(1).unwrap());
#[cfg(feature = "target_kasli_soc")]
{
io_expander0.init().expect("I2C I/O expander #0 initialization failed");
io_expander1.init().expect("I2C I/O expander #1 initialization failed");
// Actively drive TX_DISABLE to false on SFP0..3
io_expander0.set_oe(0, 1 << 1).unwrap();
io_expander0.set_oe(1, 1 << 1).unwrap();
io_expander1.set_oe(0, 1 << 1).unwrap();
io_expander1.set_oe(1, 1 << 1).unwrap();
io_expander0.set(0, 1, false);
io_expander0.set(1, 1, false);
io_expander1.set(0, 1, false);
io_expander1.set(1, 1, false);
io_expander0.service().unwrap();
io_expander1.service().unwrap();
}
let cfg = match Config::new() {
Ok(cfg) => cfg,
Err(err) => {
@ -128,5 +146,5 @@ pub fn main_core0() {
task::spawn(report_async_rtio_errors());
comms::main(timer, cfg);
comms::main(timer, cfg, io_expander0, io_expander1);
}