57 lines
1.6 KiB
Rust
57 lines
1.6 KiB
Rust
use darling::FromMeta;
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use proc_macro2::TokenStream;
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use quote::{format_ident, quote};
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use syn::spanned::Spanned;
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#[derive(Debug, FromMeta)]
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pub struct Args {
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#[darling(default)]
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pub use_hse: Option<u32>,
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#[darling(default)]
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pub sysclk: Option<u32>,
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#[darling(default)]
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pub pclk1: Option<u32>,
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#[darling(default)]
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pub require_pll48clk: bool,
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}
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pub fn generate(args: Args) -> TokenStream {
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let mut clock_cfg_args = quote! {};
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if args.use_hse.is_some() {
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let mhz = args.use_hse.unwrap();
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clock_cfg_args = quote! { #clock_cfg_args.use_hse(#mhz.mhz()) };
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}
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if args.sysclk.is_some() {
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let mhz = args.sysclk.unwrap();
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clock_cfg_args = quote! { #clock_cfg_args.sysclk(#mhz.mhz()) };
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}
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if args.pclk1.is_some() {
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let mhz = args.pclk1.unwrap();
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clock_cfg_args = quote! { #clock_cfg_args.pclk1(#mhz.mhz()) };
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}
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if args.require_pll48clk {
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clock_cfg_args = quote! { #clock_cfg_args.require_pll48clk() };
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}
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quote!(
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use embassy_stm32::{rtc, interrupt, Peripherals, pac, hal::rcc::RccExt, hal::time::U32Ext};
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let dp = pac::Peripherals::take().unwrap();
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let rcc = dp.RCC.constrain();
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let clocks = rcc.cfgr#clock_cfg_args.freeze();
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unsafe { Peripherals::set_peripherals(clocks) };
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let mut rtc = rtc::RTC::new(dp.TIM3, interrupt::take!(TIM3), clocks);
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let rtc = unsafe { make_static(&mut rtc) };
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rtc.start();
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let mut alarm = rtc.alarm1();
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unsafe { embassy::time::set_clock(rtc) };
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let alarm = unsafe { make_static(&mut alarm) };
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)
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}
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