330 lines
11 KiB
Rust
330 lines
11 KiB
Rust
//! Flexible Memory Controller (FMC) / Flexible Static Memory Controller (FSMC)
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use core::marker::PhantomData;
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use embassy_hal_internal::into_ref;
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use crate::gpio::{AFType, Pull, Speed};
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use crate::Peripheral;
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/// FMC driver
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pub struct Fmc<'d, T: Instance> {
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peri: PhantomData<&'d mut T>,
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}
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unsafe impl<'d, T> Send for Fmc<'d, T> where T: Instance {}
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impl<'d, T> Fmc<'d, T>
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where
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T: Instance,
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{
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/// Create a raw FMC instance.
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///
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/// **Note:** This is currently used to provide access to some basic FMC functions
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/// for manual configuration for memory types that stm32-fmc does not support.
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pub fn new_raw(_instance: impl Peripheral<P = T> + 'd) -> Self {
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Self { peri: PhantomData }
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}
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/// Enable the FMC peripheral and reset it.
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pub fn enable(&mut self) {
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T::enable_and_reset();
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}
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/// Enable the memory controller on applicable chips.
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pub fn memory_controller_enable(&mut self) {
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// fmc v1 and v2 does not have the fmcen bit
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// fsmc v1, v2 and v3 does not have the fmcen bit
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// This is a "not" because it is expected that all future versions have this bit
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#[cfg(not(any(fmc_v1x3, fmc_v2x1, fsmc_v1x0, fsmc_v1x3, fsmc_v2x3, fsmc_v3x1, fmc_v4)))]
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T::REGS.bcr1().modify(|r| r.set_fmcen(true));
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#[cfg(any(fmc_v4))]
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T::REGS.nor_psram().bcr1().modify(|r| r.set_fmcen(true));
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}
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/// Get the kernel clock currently in use for this FMC instance.
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pub fn source_clock_hz(&self) -> u32 {
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<T as crate::rcc::SealedRccPeripheral>::frequency().0
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}
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}
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unsafe impl<'d, T> stm32_fmc::FmcPeripheral for Fmc<'d, T>
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where
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T: Instance,
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{
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const REGISTERS: *const () = T::REGS.as_ptr() as *const _;
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fn enable(&mut self) {
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T::enable_and_reset();
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}
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fn memory_controller_enable(&mut self) {
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// fmc v1 and v2 does not have the fmcen bit
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// fsmc v1, v2 and v3 does not have the fmcen bit
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// This is a "not" because it is expected that all future versions have this bit
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#[cfg(not(any(fmc_v1x3, fmc_v2x1, fsmc_v1x0, fsmc_v1x3, fsmc_v2x3, fsmc_v3x1, fmc_v4)))]
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T::REGS.bcr1().modify(|r| r.set_fmcen(true));
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#[cfg(any(fmc_v4))]
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T::REGS.nor_psram().bcr1().modify(|r| r.set_fmcen(true));
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}
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fn source_clock_hz(&self) -> u32 {
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<T as crate::rcc::SealedRccPeripheral>::frequency().0
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}
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}
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macro_rules! config_pins {
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($($pin:ident),*) => {
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into_ref!($($pin),*);
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$(
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$pin.set_as_af_pull($pin.af_num(), AFType::OutputPushPull, Pull::Up);
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$pin.set_speed(Speed::VeryHigh);
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)*
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};
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}
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macro_rules! fmc_sdram_constructor {
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($name:ident: (
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bank: $bank:expr,
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addr: [$(($addr_pin_name:ident: $addr_signal:ident)),*],
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ba: [$(($ba_pin_name:ident: $ba_signal:ident)),*],
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d: [$(($d_pin_name:ident: $d_signal:ident)),*],
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nbl: [$(($nbl_pin_name:ident: $nbl_signal:ident)),*],
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ctrl: [$(($ctrl_pin_name:ident: $ctrl_signal:ident)),*]
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)) => {
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/// Create a new FMC instance.
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pub fn $name<CHIP: stm32_fmc::SdramChip>(
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_instance: impl Peripheral<P = T> + 'd,
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$($addr_pin_name: impl Peripheral<P = impl $addr_signal<T>> + 'd),*,
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$($ba_pin_name: impl Peripheral<P = impl $ba_signal<T>> + 'd),*,
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$($d_pin_name: impl Peripheral<P = impl $d_signal<T>> + 'd),*,
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$($nbl_pin_name: impl Peripheral<P = impl $nbl_signal<T>> + 'd),*,
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$($ctrl_pin_name: impl Peripheral<P = impl $ctrl_signal<T>> + 'd),*,
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chip: CHIP
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) -> stm32_fmc::Sdram<Fmc<'d, T>, CHIP> {
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critical_section::with(|_| {
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config_pins!(
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$($addr_pin_name),*,
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$($ba_pin_name),*,
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$($d_pin_name),*,
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$($nbl_pin_name),*,
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$($ctrl_pin_name),*
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);
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});
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let fmc = Self { peri: PhantomData };
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stm32_fmc::Sdram::new_unchecked(
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fmc,
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$bank,
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chip,
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)
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}
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};
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}
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impl<'d, T: Instance> Fmc<'d, T> {
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fmc_sdram_constructor!(sdram_a12bits_d16bits_4banks_bank1: (
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bank: stm32_fmc::SdramTargetBank::Bank1,
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addr: [
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(a0: A0Pin), (a1: A1Pin), (a2: A2Pin), (a3: A3Pin), (a4: A4Pin), (a5: A5Pin), (a6: A6Pin), (a7: A7Pin), (a8: A8Pin), (a9: A9Pin), (a10: A10Pin), (a11: A11Pin)
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],
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ba: [(ba0: BA0Pin), (ba1: BA1Pin)],
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d: [
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(d0: D0Pin), (d1: D1Pin), (d2: D2Pin), (d3: D3Pin), (d4: D4Pin), (d5: D5Pin), (d6: D6Pin), (d7: D7Pin),
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(d8: D8Pin), (d9: D9Pin), (d10: D10Pin), (d11: D11Pin), (d12: D12Pin), (d13: D13Pin), (d14: D14Pin), (d15: D15Pin)
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],
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nbl: [
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(nbl0: NBL0Pin), (nbl1: NBL1Pin)
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],
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ctrl: [
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(sdcke: SDCKE0Pin), (sdclk: SDCLKPin), (sdncas: SDNCASPin), (sdne: SDNE0Pin), (sdnras: SDNRASPin), (sdnwe: SDNWEPin)
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]
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));
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fmc_sdram_constructor!(sdram_a12bits_d32bits_4banks_bank1: (
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bank: stm32_fmc::SdramTargetBank::Bank1,
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addr: [
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(a0: A0Pin), (a1: A1Pin), (a2: A2Pin), (a3: A3Pin), (a4: A4Pin), (a5: A5Pin), (a6: A6Pin), (a7: A7Pin), (a8: A8Pin), (a9: A9Pin), (a10: A10Pin), (a11: A11Pin)
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],
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ba: [(ba0: BA0Pin), (ba1: BA1Pin)],
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d: [
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(d0: D0Pin), (d1: D1Pin), (d2: D2Pin), (d3: D3Pin), (d4: D4Pin), (d5: D5Pin), (d6: D6Pin), (d7: D7Pin),
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(d8: D8Pin), (d9: D9Pin), (d10: D10Pin), (d11: D11Pin), (d12: D12Pin), (d13: D13Pin), (d14: D14Pin), (d15: D15Pin),
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(d16: D16Pin), (d17: D17Pin), (d18: D18Pin), (d19: D19Pin), (d20: D20Pin), (d21: D21Pin), (d22: D22Pin), (d23: D23Pin),
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(d24: D24Pin), (d25: D25Pin), (d26: D26Pin), (d27: D27Pin), (d28: D28Pin), (d29: D29Pin), (d30: D30Pin), (d31: D31Pin)
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],
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nbl: [
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(nbl0: NBL0Pin), (nbl1: NBL1Pin), (nbl2: NBL2Pin), (nbl3: NBL3Pin)
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],
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ctrl: [
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(sdcke: SDCKE0Pin), (sdclk: SDCLKPin), (sdncas: SDNCASPin), (sdne: SDNE0Pin), (sdnras: SDNRASPin), (sdnwe: SDNWEPin)
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]
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));
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fmc_sdram_constructor!(sdram_a12bits_d16bits_4banks_bank2: (
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bank: stm32_fmc::SdramTargetBank::Bank2,
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addr: [
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(a0: A0Pin), (a1: A1Pin), (a2: A2Pin), (a3: A3Pin), (a4: A4Pin), (a5: A5Pin), (a6: A6Pin), (a7: A7Pin), (a8: A8Pin), (a9: A9Pin), (a10: A10Pin), (a11: A11Pin)
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],
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ba: [(ba0: BA0Pin), (ba1: BA1Pin)],
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d: [
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(d0: D0Pin), (d1: D1Pin), (d2: D2Pin), (d3: D3Pin), (d4: D4Pin), (d5: D5Pin), (d6: D6Pin), (d7: D7Pin),
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(d8: D8Pin), (d9: D9Pin), (d10: D10Pin), (d11: D11Pin), (d12: D12Pin), (d13: D13Pin), (d14: D14Pin), (d15: D15Pin)
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],
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nbl: [
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(nbl0: NBL0Pin), (nbl1: NBL1Pin)
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],
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ctrl: [
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(sdcke: SDCKE1Pin), (sdclk: SDCLKPin), (sdncas: SDNCASPin), (sdne: SDNE1Pin), (sdnras: SDNRASPin), (sdnwe: SDNWEPin)
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]
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));
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fmc_sdram_constructor!(sdram_a12bits_d32bits_4banks_bank2: (
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bank: stm32_fmc::SdramTargetBank::Bank2,
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addr: [
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(a0: A0Pin), (a1: A1Pin), (a2: A2Pin), (a3: A3Pin), (a4: A4Pin), (a5: A5Pin), (a6: A6Pin), (a7: A7Pin), (a8: A8Pin), (a9: A9Pin), (a10: A10Pin), (a11: A11Pin)
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],
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ba: [(ba0: BA0Pin), (ba1: BA1Pin)],
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d: [
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(d0: D0Pin), (d1: D1Pin), (d2: D2Pin), (d3: D3Pin), (d4: D4Pin), (d5: D5Pin), (d6: D6Pin), (d7: D7Pin),
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(d8: D8Pin), (d9: D9Pin), (d10: D10Pin), (d11: D11Pin), (d12: D12Pin), (d13: D13Pin), (d14: D14Pin), (d15: D15Pin),
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(d16: D16Pin), (d17: D17Pin), (d18: D18Pin), (d19: D19Pin), (d20: D20Pin), (d21: D21Pin), (d22: D22Pin), (d23: D23Pin),
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(d24: D24Pin), (d25: D25Pin), (d26: D26Pin), (d27: D27Pin), (d28: D28Pin), (d29: D29Pin), (d30: D30Pin), (d31: D31Pin)
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],
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nbl: [
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(nbl0: NBL0Pin), (nbl1: NBL1Pin), (nbl2: NBL2Pin), (nbl3: NBL3Pin)
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],
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ctrl: [
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(sdcke: SDCKE1Pin), (sdclk: SDCLKPin), (sdncas: SDNCASPin), (sdne: SDNE1Pin), (sdnras: SDNRASPin), (sdnwe: SDNWEPin)
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]
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));
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}
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trait SealedInstance: crate::rcc::SealedRccPeripheral {
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const REGS: crate::pac::fmc::Fmc;
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}
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/// FMC instance trait.
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#[allow(private_bounds)]
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pub trait Instance: SealedInstance + 'static {}
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foreach_peripheral!(
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(fmc, $inst:ident) => {
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impl crate::fmc::SealedInstance for crate::peripherals::$inst {
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const REGS: crate::pac::fmc::Fmc = crate::pac::$inst;
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}
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impl crate::fmc::Instance for crate::peripherals::$inst {}
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};
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);
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pin_trait!(SDNWEPin, Instance);
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pin_trait!(SDNCASPin, Instance);
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pin_trait!(SDNRASPin, Instance);
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pin_trait!(SDNE0Pin, Instance);
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pin_trait!(SDNE1Pin, Instance);
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pin_trait!(SDCKE0Pin, Instance);
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pin_trait!(SDCKE1Pin, Instance);
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pin_trait!(SDCLKPin, Instance);
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pin_trait!(NBL0Pin, Instance);
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pin_trait!(NBL1Pin, Instance);
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pin_trait!(NBL2Pin, Instance);
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pin_trait!(NBL3Pin, Instance);
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pin_trait!(INTPin, Instance);
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pin_trait!(NLPin, Instance);
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pin_trait!(NWaitPin, Instance);
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pin_trait!(NE1Pin, Instance);
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pin_trait!(NE2Pin, Instance);
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pin_trait!(NE3Pin, Instance);
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pin_trait!(NE4Pin, Instance);
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pin_trait!(NCEPin, Instance);
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pin_trait!(NOEPin, Instance);
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pin_trait!(NWEPin, Instance);
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pin_trait!(ClkPin, Instance);
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pin_trait!(BA0Pin, Instance);
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pin_trait!(BA1Pin, Instance);
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pin_trait!(D0Pin, Instance);
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pin_trait!(D1Pin, Instance);
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pin_trait!(D2Pin, Instance);
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pin_trait!(D3Pin, Instance);
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pin_trait!(D4Pin, Instance);
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pin_trait!(D5Pin, Instance);
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pin_trait!(D6Pin, Instance);
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pin_trait!(D7Pin, Instance);
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pin_trait!(D8Pin, Instance);
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pin_trait!(D9Pin, Instance);
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pin_trait!(D10Pin, Instance);
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pin_trait!(D11Pin, Instance);
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pin_trait!(D12Pin, Instance);
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pin_trait!(D13Pin, Instance);
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pin_trait!(D14Pin, Instance);
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pin_trait!(D15Pin, Instance);
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pin_trait!(D16Pin, Instance);
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pin_trait!(D17Pin, Instance);
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pin_trait!(D18Pin, Instance);
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pin_trait!(D19Pin, Instance);
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pin_trait!(D20Pin, Instance);
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pin_trait!(D21Pin, Instance);
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pin_trait!(D22Pin, Instance);
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pin_trait!(D23Pin, Instance);
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pin_trait!(D24Pin, Instance);
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pin_trait!(D25Pin, Instance);
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pin_trait!(D26Pin, Instance);
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pin_trait!(D27Pin, Instance);
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pin_trait!(D28Pin, Instance);
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pin_trait!(D29Pin, Instance);
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pin_trait!(D30Pin, Instance);
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pin_trait!(D31Pin, Instance);
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pin_trait!(DA0Pin, Instance);
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pin_trait!(DA1Pin, Instance);
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pin_trait!(DA2Pin, Instance);
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pin_trait!(DA3Pin, Instance);
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pin_trait!(DA4Pin, Instance);
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pin_trait!(DA5Pin, Instance);
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pin_trait!(DA6Pin, Instance);
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pin_trait!(DA7Pin, Instance);
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pin_trait!(DA8Pin, Instance);
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pin_trait!(DA9Pin, Instance);
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pin_trait!(DA10Pin, Instance);
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pin_trait!(DA11Pin, Instance);
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pin_trait!(DA12Pin, Instance);
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pin_trait!(DA13Pin, Instance);
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pin_trait!(DA14Pin, Instance);
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pin_trait!(DA15Pin, Instance);
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pin_trait!(A0Pin, Instance);
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pin_trait!(A1Pin, Instance);
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pin_trait!(A2Pin, Instance);
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pin_trait!(A3Pin, Instance);
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pin_trait!(A4Pin, Instance);
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pin_trait!(A5Pin, Instance);
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pin_trait!(A6Pin, Instance);
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pin_trait!(A7Pin, Instance);
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pin_trait!(A8Pin, Instance);
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pin_trait!(A9Pin, Instance);
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pin_trait!(A10Pin, Instance);
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pin_trait!(A11Pin, Instance);
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pin_trait!(A12Pin, Instance);
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pin_trait!(A13Pin, Instance);
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pin_trait!(A14Pin, Instance);
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pin_trait!(A15Pin, Instance);
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pin_trait!(A16Pin, Instance);
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pin_trait!(A17Pin, Instance);
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pin_trait!(A18Pin, Instance);
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pin_trait!(A19Pin, Instance);
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pin_trait!(A20Pin, Instance);
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pin_trait!(A21Pin, Instance);
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pin_trait!(A22Pin, Instance);
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pin_trait!(A23Pin, Instance);
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pin_trait!(A24Pin, Instance);
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pin_trait!(A25Pin, Instance);
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