M-Labs/artiq-zynq
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add virtual LEDs, improve IO expander setup, drive TX_DISABLE

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Co-authored-by: morgan <mc@m-labs.hk>
Co-committed-by: morgan <mc@m-labs.hk>
This commit is contained in:
morgan 2023-08-28 16:08:10 +08:00 committed by sb10q
parent 4ae8557018
commit 622d267d55
4 changed files with 174 additions and 60 deletions
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23
src/gateware/kasli_soc.py
View File

@ -10,6 +10,7 @@ from migen.genlib.cdc import MultiReg
from migen_axi.integration.soc_core import SoCCore
from migen_axi.platforms import kasli_soc
from misoc.interconnect.csr import *
from misoc.cores import virtual_leds
from misoc.integration import cpu_interface
from artiq.coredevice import jsondesc
@ -86,6 +87,8 @@ class GenericStandalone(SoCCore):
self.acpki = acpki
self.rustc_cfg = dict()
self.rustc_cfg["hw_rev"] = description["hw_rev"]
platform = kasli_soc.Platform()
platform.toolchain.bitstream_commands.extend([
"set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
@ -178,6 +181,8 @@ class GenericMaster(SoCCore):
self.acpki = acpki
self.rustc_cfg = dict()
self.rustc_cfg["hw_rev"] = description["hw_rev"]
platform = kasli_soc.Platform()
platform.toolchain.bitstream_commands.extend([
"set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
@ -303,6 +308,14 @@ class GenericMaster(SoCCore):
if has_grabber:
self.rustc_cfg["has_grabber"] = None
self.add_csr_group("grabber", self.grabber_csr_group)
self.submodules.virtual_leds = virtual_leds.VirtualLeds()
self.csr_devices.append("virtual_leds")
self.comb += [self.virtual_leds.get(i).eq(channel.rx_ready)
for i, channel in enumerate(self.gt_drtio.channels)]
class GenericSatellite(SoCCore):
@ -312,6 +325,8 @@ class GenericSatellite(SoCCore):
self.acpki = acpki
self.rustc_cfg = dict()
self.rustc_cfg["hw_rev"] = description["hw_rev"]
platform = kasli_soc.Platform()
platform.toolchain.bitstream_commands.extend([
"set_property BITSTREAM.GENERAL.COMPRESS True [current_design]",
@ -466,7 +481,13 @@ class GenericSatellite(SoCCore):
self.rustc_cfg["has_grabber"] = None
self.add_csr_group("grabber", self.grabber_csr_group)
# no RTIO CRG here
self.submodules.virtual_leds = virtual_leds.VirtualLeds()
self.csr_devices.append("virtual_leds")
self.comb += [self.virtual_leds.get(i).eq(channel.rx_ready)
for i, channel in enumerate(self.gt_drtio.channels)]
def write_mem_file(soc, filename):
with open(filename, "w") as f:

110
src/libboard_artiq/src/io_expander.rs
View File

@ -1,6 +1,8 @@
use libboard_zynq::i2c;
use log::info;
use crate::pl::csr;
// Only the bare minimum registers. Bits/IO connections equivalent between IC types.
struct Registers {
// PCA9539 equivalent register names in comments
@ -10,23 +12,49 @@ struct Registers {
gpiob: u8, // Output Port 1
}
pub struct IoExpander<'a> {
i2c: &'a mut i2c::I2c,
//IO expanders pins
const IODIR_OUT_SFP_TX_DISABLE: u8 = 0x02;
const IODIR_OUT_SFP_LED: u8 = 0x40;
#[cfg(hw_rev = "v1.0")]
const IODIR_OUT_SFP0_LED: u8 = 0x40;
#[cfg(hw_rev = "v1.1")]
const IODIR_OUT_SFP0_LED: u8 = 0x80;
//IO expander port direction
const IODIR0: [u8; 2] = [
0xFF & !IODIR_OUT_SFP_TX_DISABLE & !IODIR_OUT_SFP0_LED,
0xFF & !IODIR_OUT_SFP_TX_DISABLE & !IODIR_OUT_SFP_LED,
];
const IODIR1: [u8; 2] = [
0xFF & !IODIR_OUT_SFP_TX_DISABLE & !IODIR_OUT_SFP_LED,
0xFF & !IODIR_OUT_SFP_TX_DISABLE & !IODIR_OUT_SFP_LED,
];
pub struct IoExpander {
address: u8,
virtual_led_mapping: &'static [(u8, u8, u8)],
iodir: [u8; 2],
out_current: [u8; 2],
out_target: [u8; 2],
registers: Registers,
}
impl<'a> IoExpander<'a> {
pub fn new(i2c: &'a mut i2c::I2c, index: u8) -> Result<Self, &'static str> {
impl IoExpander {
pub fn new(i2c: &mut i2c::I2c, index: u8) -> Result<Self, &'static str> {
#[cfg(hw_rev = "v1.0")]
const VIRTUAL_LED_MAPPING0: [(u8, u8, u8); 2] = [(0, 0, 6), (1, 1, 6)];
#[cfg(hw_rev = "v1.1")]
const VIRTUAL_LED_MAPPING0: [(u8, u8, u8); 2] = [(0, 0, 7), (1, 1, 6)];
const VIRTUAL_LED_MAPPING1: [(u8, u8, u8); 2] = [(2, 0, 6), (3, 1, 6)];
// Both expanders on SHARED I2C bus
let mut io_expander = match index {
0 => IoExpander {
i2c,
address: 0x40,
iodir: [0xff; 2],
virtual_led_mapping: &VIRTUAL_LED_MAPPING0,
iodir: IODIR0,
out_current: [0; 2],
out_target: [0; 2],
registers: Registers {
@ -37,9 +65,9 @@ impl<'a> IoExpander<'a> {
},
},
1 => IoExpander {
i2c,
address: 0x42,
iodir: [0xff; 2],
virtual_led_mapping: &VIRTUAL_LED_MAPPING1,
iodir: IODIR1,
out_current: [0; 2],
out_target: [0; 2],
registers: Registers {
@ -51,7 +79,7 @@ impl<'a> IoExpander<'a> {
},
_ => return Err("incorrect I/O expander index"),
};
if !io_expander.check_ack()? {
if !io_expander.check_ack(i2c)? {
info!("MCP23017 io expander {} not found. Checking for PCA9539.", index);
io_expander.address += 0xa8; // translate to PCA9539 addresses (see schematic)
io_expander.registers = Registers {
@ -60,57 +88,58 @@ impl<'a> IoExpander<'a> {
gpioa: 0x02,
gpiob: 0x03,
};
if !io_expander.check_ack()? {
if !io_expander.check_ack(i2c)? {
return Err("Neither MCP23017 nor PCA9539 io expander found.");
};
}
Ok(io_expander)
}
fn select(&mut self) -> Result<(), &'static str> {
self.i2c.pca954x_select(0x70, None)?;
self.i2c.pca954x_select(0x71, Some(3))?;
fn select(&self, i2c: &mut i2c::I2c) -> Result<(), &'static str> {
i2c.pca954x_select(0x70, None)?;
i2c.pca954x_select(0x71, Some(3))?;
Ok(())
}
fn write(&mut self, addr: u8, value: u8) -> Result<(), &'static str> {
self.i2c.start()?;
self.i2c.write(self.address)?;
self.i2c.write(addr)?;
self.i2c.write(value)?;
self.i2c.stop()?;
fn write(&self, i2c: &mut i2c::I2c, addr: u8, value: u8) -> Result<(), &'static str> {
i2c.start()?;
i2c.write(self.address)?;
i2c.write(addr)?;
i2c.write(value)?;
i2c.stop()?;
Ok(())
}
fn check_ack(&mut self) -> Result<bool, &'static str> {
fn check_ack(&self, i2c: &mut i2c::I2c) -> Result<bool, &'static str> {
// Check for ack from io expander
self.select()?;
self.i2c.start()?;
let ack = self.i2c.write(self.address)?;
self.i2c.stop()?;
self.select(i2c)?;
i2c.start()?;
let ack = i2c.write(self.address)?;
i2c.stop()?;
Ok(ack)
}
fn update_iodir(&mut self) -> Result<(), &'static str> {
self.write(self.registers.iodira, self.iodir[0])?;
self.write(self.registers.iodirb, self.iodir[1])?;
fn update_iodir(&self, i2c: &mut i2c::I2c) -> Result<(), &'static str> {
self.write(i2c, self.registers.iodira, self.iodir[0])?;
self.write(i2c, self.registers.iodirb, self.iodir[1])?;
Ok(())
}
pub fn init(&mut self) -> Result<(), &'static str> {
self.select()?;
self.update_iodir()?;
pub fn init(&mut self, i2c: &mut i2c::I2c) -> Result<(), &'static str> {
self.select(i2c)?;
self.update_iodir(i2c)?;
self.out_current[0] = 0x00;
self.write(self.registers.gpioa, 0x00)?;
self.write(i2c, self.registers.gpioa, 0x00)?;
self.out_current[1] = 0x00;
self.write(self.registers.gpiob, 0x00)?;
self.write(i2c, self.registers.gpiob, 0x00)?;
Ok(())
}
pub fn set_oe(&mut self, port: u8, outputs: u8) -> Result<(), &'static str> {
pub fn set_oe(&mut self, i2c: &mut i2c::I2c, port: u8, outputs: u8) -> Result<(), &'static str> {
self.iodir[port as usize] &= !outputs;
self.update_iodir()?;
self.update_iodir(i2c)?;
Ok(())
}
@ -122,15 +151,20 @@ impl<'a> IoExpander<'a> {
}
}
pub fn service(&mut self) -> Result<(), &'static str> {
pub fn service(&mut self, i2c: &mut i2c::I2c) -> Result<(), &'static str> {
for (led, port, bit) in self.virtual_led_mapping.iter() {
let level = unsafe { csr::virtual_leds::status_read() >> led & 1 };
self.set(*port, *bit, level != 0);
}
if self.out_target != self.out_current {
self.select()?;
self.select(i2c)?;
if self.out_target[0] != self.out_current[0] {
self.write(self.registers.gpioa, self.out_target[0])?;
self.write(i2c, self.registers.gpioa, self.out_target[0])?;
self.out_current[0] = self.out_target[0];
}
if self.out_target[1] != self.out_current[1] {
self.write(self.registers.gpiob, self.out_target[1])?;
self.write(i2c, self.registers.gpiob, self.out_target[1])?;
self.out_current[1] = self.out_target[1];
}
}

55
src/runtime/src/main.rs
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@ -12,6 +12,8 @@
#[macro_use]
extern crate alloc;
use core::cell::RefCell;
use libasync::{block_async, task};
#[cfg(feature = "target_kasli_soc")]
use libboard_artiq::io_expander;
@ -102,6 +104,25 @@ async fn report_async_rtio_errors() {
}
}
#[cfg(feature = "target_kasli_soc")]
async fn io_expanders_service(
i2c_bus: RefCell<&mut libboard_zynq::i2c::I2c>,
io_expander0: RefCell<io_expander::IoExpander>,
io_expander1: RefCell<io_expander::IoExpander>,
) {
loop {
task::r#yield().await;
io_expander0
.borrow_mut()
.service(&mut i2c_bus.borrow_mut())
.expect("I2C I/O expander #0 service failed");
io_expander1
.borrow_mut()
.service(&mut i2c_bus.borrow_mut())
.expect("I2C I/O expander #1 service failed");
}
}
static mut LOG_BUFFER: [u8; 1 << 17] = [0; 1 << 17];
#[no_mangle]
@ -122,20 +143,26 @@ pub fn main_core0() {
info!("gateware ident: {}", identifier_read(&mut [0; 64]));
i2c::init();
let i2c_bus = unsafe { (i2c::I2C_BUS).as_mut().unwrap() };
let (mut io_expander0, mut io_expander1);
#[cfg(feature = "target_kasli_soc")]
{
let i2c = unsafe { (&mut i2c::I2C_BUS).as_mut().unwrap() };
for expander_i in 0..=1 {
let mut io_expander = io_expander::IoExpander::new(i2c, expander_i).unwrap();
io_expander.init().expect("I2C I/O expander #0 initialization failed");
// Actively drive TX_DISABLE to false on SFP0..3
io_expander.set_oe(0, 1 << 1).unwrap();
io_expander.set_oe(1, 1 << 1).unwrap();
io_expander.set(0, 1, false);
io_expander.set(1, 1, false);
io_expander.service().unwrap();
}
io_expander0 = io_expander::IoExpander::new(i2c_bus, 0).unwrap();
io_expander1 = io_expander::IoExpander::new(i2c_bus, 1).unwrap();
io_expander0
.init(i2c_bus)
.expect("I2C I/O expander #0 initialization failed");
io_expander1
.init(i2c_bus)
.expect("I2C I/O expander #1 initialization failed");
// Actively drive TX_DISABLE to false on SFP0..3
io_expander0.set(0, 1, false);
io_expander1.set(0, 1, false);
io_expander0.set(1, 1, false);
io_expander1.set(1, 1, false);
io_expander0.service(i2c_bus).unwrap();
io_expander1.service(i2c_bus).unwrap();
}
let cfg = match Config::new() {
@ -150,5 +177,11 @@ pub fn main_core0() {
task::spawn(report_async_rtio_errors());
#[cfg(feature = "target_kasli_soc")]
task::spawn(io_expanders_service(
RefCell::new(i2c_bus),
RefCell::new(io_expander0),
RefCell::new(io_expander1),
));
comms::main(timer, cfg);
}

46
src/satman/src/main.rs
View File

@ -611,18 +611,25 @@ pub extern "C" fn main_core0() -> i32 {
let mut i2c = I2c::i2c0();
i2c.init().expect("I2C initialization failed");
let (mut io_expander0, mut io_expander1);
#[cfg(feature = "target_kasli_soc")]
{
for expander_i in 0..=1 {
let mut io_expander = io_expander::IoExpander::new(&mut i2c, expander_i).unwrap();
io_expander.init().expect("I2C I/O expander #0 initialization failed");
// Actively drive TX_DISABLE to false on SFP0..3
io_expander.set_oe(0, 1 << 1).unwrap();
io_expander.set_oe(1, 1 << 1).unwrap();
io_expander.set(0, 1, false);
io_expander.set(1, 1, false);
io_expander.service().unwrap();
}
io_expander0 = io_expander::IoExpander::new(&mut i2c, 0).unwrap();
io_expander1 = io_expander::IoExpander::new(&mut i2c, 1).unwrap();
io_expander0
.init(&mut i2c)
.expect("I2C I/O expander #0 initialization failed");
io_expander1
.init(&mut i2c)
.expect("I2C I/O expander #1 initialization failed");
// Actively drive TX_DISABLE to false on SFP0..3
io_expander0.set(0, 1, false);
io_expander1.set(0, 1, false);
io_expander0.set(1, 1, false);
io_expander1.set(1, 1, false);
io_expander0.service(&mut i2c).unwrap();
io_expander1.service(&mut i2c).unwrap();
}
#[cfg(has_si5324)]
@ -664,6 +671,16 @@ pub extern "C" fn main_core0() -> i32 {
for mut rep in repeaters.iter_mut() {
rep.service(&routing_table, rank, &mut timer);
}
#[cfg(feature = "target_kasli_soc")]
{
io_expander0
.service(&mut i2c)
.expect("I2C I/O expander #0 service failed");
io_expander1
.service(&mut i2c)
.expect("I2C I/O expander #1 service failed");
}
hardware_tick(&mut hardware_tick_ts, &mut timer);
}
@ -700,6 +717,15 @@ pub extern "C" fn main_core0() -> i32 {
for mut rep in repeaters.iter_mut() {
rep.service(&routing_table, rank, &mut timer);
}
#[cfg(feature = "target_kasli_soc")]
{
io_expander0
.service(&mut i2c)
.expect("I2C I/O expander #0 service failed");
io_expander1
.service(&mut i2c)
.expect("I2C I/O expander #1 service failed");
}
hardware_tick(&mut hardware_tick_ts, &mut timer);
if drtiosat_tsc_loaded() {
info!("TSC loaded from uplink");