332 lines
11 KiB
Rust
332 lines
11 KiB
Rust
use crate::{peripherals, rcc::RccPeripheral};
|
|
use core::marker::PhantomData;
|
|
use embassy::util::Unborrow;
|
|
use embassy_hal_common::unborrow;
|
|
pub use embassy_hal_common::usb::*;
|
|
pub use synopsys_usb_otg::UsbBus;
|
|
use synopsys_usb_otg::{PhyType, UsbPeripheral};
|
|
|
|
macro_rules! config_pins {
|
|
($($pin:ident),*) => {
|
|
$(
|
|
$pin.configure();
|
|
)*
|
|
};
|
|
}
|
|
|
|
pub struct UsbOtg<'d, T: Instance> {
|
|
phantom: PhantomData<&'d mut T>,
|
|
phy_type: PhyType,
|
|
}
|
|
|
|
impl<'d, T: Instance> UsbOtg<'d, T> {
|
|
/// Initializes USB OTG peripheral with internal Full-Speed PHY
|
|
pub fn new_fs(
|
|
_peri: impl Unborrow<Target = T> + 'd,
|
|
dp: impl Unborrow<Target = impl DpPin<T>> + 'd,
|
|
dm: impl Unborrow<Target = impl DmPin<T>> + 'd,
|
|
) -> Self {
|
|
unborrow!(dp, dm);
|
|
config_pins!(dp, dm);
|
|
|
|
Self {
|
|
phantom: PhantomData,
|
|
phy_type: PhyType::InternalFullSpeed,
|
|
}
|
|
}
|
|
|
|
/// Initializes USB OTG peripheral with external High-Speed PHY
|
|
pub fn new_hs_ulpi(
|
|
_peri: impl Unborrow<Target = T> + 'd,
|
|
ulpi_clk: impl Unborrow<Target = impl UlpiClkPin<T>> + 'd,
|
|
ulpi_dir: impl Unborrow<Target = impl UlpiDirPin<T>> + 'd,
|
|
ulpi_nxt: impl Unborrow<Target = impl UlpiNxtPin<T>> + 'd,
|
|
ulpi_stp: impl Unborrow<Target = impl UlpiStpPin<T>> + 'd,
|
|
ulpi_d0: impl Unborrow<Target = impl UlpiD0Pin<T>> + 'd,
|
|
ulpi_d1: impl Unborrow<Target = impl UlpiD1Pin<T>> + 'd,
|
|
ulpi_d2: impl Unborrow<Target = impl UlpiD2Pin<T>> + 'd,
|
|
ulpi_d3: impl Unborrow<Target = impl UlpiD3Pin<T>> + 'd,
|
|
ulpi_d4: impl Unborrow<Target = impl UlpiD4Pin<T>> + 'd,
|
|
ulpi_d5: impl Unborrow<Target = impl UlpiD5Pin<T>> + 'd,
|
|
ulpi_d6: impl Unborrow<Target = impl UlpiD6Pin<T>> + 'd,
|
|
ulpi_d7: impl Unborrow<Target = impl UlpiD7Pin<T>> + 'd,
|
|
) -> Self {
|
|
unborrow!(ulpi_clk, ulpi_dir, ulpi_nxt, ulpi_stp);
|
|
unborrow!(ulpi_d0, ulpi_d1, ulpi_d2, ulpi_d3, ulpi_d4, ulpi_d5, ulpi_d6, ulpi_d7);
|
|
config_pins!(ulpi_clk, ulpi_dir, ulpi_nxt, ulpi_stp);
|
|
config_pins!(ulpi_d0, ulpi_d1, ulpi_d2, ulpi_d3, ulpi_d4, ulpi_d5, ulpi_d6, ulpi_d7);
|
|
|
|
Self {
|
|
phantom: PhantomData,
|
|
phy_type: PhyType::ExternalHighSpeed,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'d, T: Instance> Drop for UsbOtg<'d, T> {
|
|
fn drop(&mut self) {
|
|
T::reset();
|
|
T::disable();
|
|
}
|
|
}
|
|
|
|
unsafe impl<'d, T: Instance> Send for UsbOtg<'d, T> {}
|
|
unsafe impl<'d, T: Instance> Sync for UsbOtg<'d, T> {}
|
|
|
|
unsafe impl<'d, T: Instance> UsbPeripheral for UsbOtg<'d, T> {
|
|
const REGISTERS: *const () = T::REGISTERS;
|
|
const HIGH_SPEED: bool = T::HIGH_SPEED;
|
|
const FIFO_DEPTH_WORDS: usize = T::FIFO_DEPTH_WORDS;
|
|
const ENDPOINT_COUNT: usize = T::ENDPOINT_COUNT;
|
|
|
|
fn enable() {
|
|
<T as crate::rcc::sealed::RccPeripheral>::enable();
|
|
<T as crate::rcc::sealed::RccPeripheral>::reset();
|
|
}
|
|
|
|
fn phy_type(&self) -> PhyType {
|
|
self.phy_type
|
|
}
|
|
|
|
fn ahb_frequency_hz(&self) -> u32 {
|
|
<T as crate::rcc::sealed::RccPeripheral>::frequency().0
|
|
}
|
|
}
|
|
|
|
pub(crate) mod sealed {
|
|
pub trait Instance {
|
|
const REGISTERS: *const ();
|
|
const HIGH_SPEED: bool;
|
|
const FIFO_DEPTH_WORDS: usize;
|
|
const ENDPOINT_COUNT: usize;
|
|
}
|
|
|
|
macro_rules! declare_pins {
|
|
($name:ident) => {
|
|
pub trait $name<T: Instance> {
|
|
fn configure(&mut self);
|
|
}
|
|
};
|
|
|
|
($($name:ident),*) => {
|
|
$(
|
|
declare_pins!($name);
|
|
)*
|
|
};
|
|
}
|
|
|
|
// Internal PHY pins
|
|
declare_pins!(DpPin, DmPin);
|
|
|
|
// External PHY pins
|
|
declare_pins!(UlpiClkPin, UlpiDirPin, UlpiNxtPin, UlpiStpPin);
|
|
declare_pins!(UlpiD0Pin, UlpiD1Pin, UlpiD2Pin, UlpiD3Pin);
|
|
declare_pins!(UlpiD4Pin, UlpiD5Pin, UlpiD6Pin, UlpiD7Pin);
|
|
}
|
|
|
|
pub trait Instance: sealed::Instance + RccPeripheral {}
|
|
|
|
macro_rules! declare_pins {
|
|
($name:ident) => {
|
|
pub trait $name<T: Instance>: sealed::$name<T> {}
|
|
};
|
|
|
|
($($name:ident),*) => {
|
|
$(
|
|
declare_pins!($name);
|
|
)*
|
|
};
|
|
}
|
|
|
|
declare_pins!(DpPin, DmPin);
|
|
declare_pins!(UlpiClkPin, UlpiDirPin, UlpiNxtPin, UlpiStpPin);
|
|
declare_pins!(UlpiD0Pin, UlpiD1Pin, UlpiD2Pin, UlpiD3Pin);
|
|
declare_pins!(UlpiD4Pin, UlpiD5Pin, UlpiD6Pin, UlpiD7Pin);
|
|
|
|
crate::pac::peripherals!(
|
|
(otgfs, $inst:ident) => {
|
|
impl sealed::Instance for peripherals::$inst {
|
|
const REGISTERS: *const () = crate::pac::$inst.0 as *const ();
|
|
const HIGH_SPEED: bool = false;
|
|
|
|
cfg_if::cfg_if! {
|
|
if #[cfg(stm32f1)] {
|
|
const FIFO_DEPTH_WORDS: usize = 128;
|
|
const ENDPOINT_COUNT: usize = 8;
|
|
} else if #[cfg(any(
|
|
stm32f2,
|
|
stm32f401,
|
|
stm32f405,
|
|
stm32f407,
|
|
stm32f411,
|
|
stm32f415,
|
|
stm32f417,
|
|
stm32f427,
|
|
stm32f429,
|
|
stm32f437,
|
|
stm32f439,
|
|
))] {
|
|
const FIFO_DEPTH_WORDS: usize = 320;
|
|
const ENDPOINT_COUNT: usize = 4;
|
|
} else if #[cfg(any(
|
|
stm32f412,
|
|
stm32f413,
|
|
stm32f423,
|
|
stm32f446,
|
|
stm32f469,
|
|
stm32f479,
|
|
stm32f7,
|
|
stm32l4,
|
|
stm32u5,
|
|
))] {
|
|
const FIFO_DEPTH_WORDS: usize = 320;
|
|
const ENDPOINT_COUNT: usize = 6;
|
|
} else if #[cfg(stm32g0x1)] {
|
|
const FIFO_DEPTH_WORDS: usize = 512;
|
|
const ENDPOINT_COUNT: usize = 8;
|
|
} else {
|
|
compile_error!("USB_OTG_FS peripheral is not supported by this chip. Disable \"usb-otg-fs\" feature or select a different chip.");
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Instance for peripherals::$inst {}
|
|
};
|
|
|
|
(otghs, $inst:ident) => {
|
|
impl sealed::Instance for peripherals::$inst {
|
|
const REGISTERS: *const () = crate::pac::$inst.0 as *const ();
|
|
const HIGH_SPEED: bool = true;
|
|
|
|
cfg_if::cfg_if! {
|
|
if #[cfg(any(
|
|
stm32f2,
|
|
stm32f405,
|
|
stm32f407,
|
|
stm32f415,
|
|
stm32f417,
|
|
stm32f427,
|
|
stm32f429,
|
|
stm32f437,
|
|
stm32f439,
|
|
))] {
|
|
const FIFO_DEPTH_WORDS: usize = 1024;
|
|
const ENDPOINT_COUNT: usize = 6;
|
|
} else if #[cfg(any(
|
|
stm32f446,
|
|
stm32f469,
|
|
stm32f479,
|
|
stm32f7,
|
|
stm32h7,
|
|
))] {
|
|
const FIFO_DEPTH_WORDS: usize = 1024;
|
|
const ENDPOINT_COUNT: usize = 9;
|
|
} else {
|
|
compile_error!("USB_OTG_HS peripheral is not supported by this chip. Disable \"usb-otg-hs\" feature or select a different chip.");
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Instance for peripherals::$inst {}
|
|
};
|
|
);
|
|
|
|
crate::pac::interrupts!(
|
|
($inst:ident, otgfs, $block:ident, GLOBAL, $irq:ident) => {
|
|
unsafe impl USBInterrupt for crate::interrupt::$irq {}
|
|
};
|
|
($inst:ident, otghs, $block:ident, GLOBAL, $irq:ident) => {
|
|
unsafe impl USBInterrupt for crate::interrupt::$irq {}
|
|
};
|
|
);
|
|
|
|
macro_rules! impl_pin {
|
|
($inst:ident, $pin:ident, $signal:ident, $af:expr) => {
|
|
impl $signal<peripherals::$inst> for peripherals::$pin {}
|
|
|
|
impl sealed::$signal<peripherals::$inst> for peripherals::$pin {
|
|
fn configure(&mut self) {
|
|
use crate::gpio::sealed::{AFType::OutputPushPull, Pin as SealedPin};
|
|
|
|
critical_section::with(|_| unsafe {
|
|
self.set_as_af($af, OutputPushPull);
|
|
});
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
// ULPI pins have to be set to VeryHigh speed
|
|
macro_rules! impl_ulpi_pin {
|
|
($inst:ident, $pin:ident, $signal:ident, $af:expr) => {
|
|
impl $signal<peripherals::$inst> for peripherals::$pin {}
|
|
|
|
impl sealed::$signal<peripherals::$inst> for peripherals::$pin {
|
|
fn configure(&mut self) {
|
|
use crate::gpio::sealed::{AFType::OutputPushPull, Pin as SealedPin};
|
|
use crate::gpio::Speed;
|
|
|
|
critical_section::with(|_| unsafe {
|
|
self.set_as_af($af, OutputPushPull);
|
|
self.set_speed(Speed::VeryHigh);
|
|
});
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
crate::pac::peripheral_pins!(
|
|
// FS internal phy pins
|
|
($inst:ident, otgfs, OTG_FS, $pin:ident, DP, $af:expr) => {
|
|
impl_pin!($inst, $pin, DpPin, $af);
|
|
};
|
|
($inst:ident, otgfs, OTG_FS, $pin:ident, DM, $af:expr) => {
|
|
impl_pin!($inst, $pin, DmPin, $af);
|
|
};
|
|
|
|
// HS internal phy pins
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, DP, $af:expr) => {
|
|
impl_pin!($inst, $pin, DpPin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, DM, $af:expr) => {
|
|
impl_pin!($inst, $pin, DmPin, $af);
|
|
};
|
|
|
|
// HS external phy pins
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_CK, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiClkPin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_DIR, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiDirPin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_NXT, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiNxtPin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_STP, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiStpPin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D0, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD0Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D1, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD1Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D2, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD2Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D3, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD3Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D4, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD4Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D5, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD5Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D6, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD6Pin, $af);
|
|
};
|
|
($inst:ident, otghs, OTG_HS, $pin:ident, ULPI_D7, $af:expr) => {
|
|
impl_ulpi_pin!($inst, $pin, UlpiD7Pin, $af);
|
|
};
|
|
);
|