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stm32/spi: move init code to function that's not generic in T

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This commit is contained in:
Jan Špaček 2024-05-26 15:33:29 +02:00
parent e61136fa4a
commit ca3c15658d
1 changed files with 20 additions and 19 deletions
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39
embassy-stm32/src/spi/mod.rs
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@ -13,7 +13,7 @@ use crate::dma::{slice_ptr_parts, word, ChannelAndRequest};
use crate::gpio::{AFType, AnyPin, Pull, SealedPin as _, Speed};
use crate::mode::{Async, Blocking, Mode as PeriMode};
use crate::pac::spi::{regs, vals, Spi as Regs};
use crate::rcc::{self, RccInfo, SealedRccPeripheral};
use crate::rcc::{RccInfo, SealedRccPeripheral};
use crate::time::Hertz;
use crate::Peripheral;
@ -120,17 +120,30 @@ impl<'d, M: PeriMode> Spi<'d, M> {
rx_dma: Option<ChannelAndRequest<'d>>,
config: Config,
) -> Self {
let regs = T::info().regs;
let kernel_clock = T::frequency();
let br = compute_baud_rate(kernel_clock, config.frequency);
let mut this = Self {
info: T::info(),
kernel_clock: T::frequency(),
sck,
mosi,
miso,
tx_dma,
rx_dma,
current_word_size: <u8 as SealedWord>::CONFIG,
_phantom: PhantomData,
};
this.enable_and_init(config);
this
}
fn enable_and_init(&mut self, config: Config) {
let br = compute_baud_rate(self.kernel_clock, config.frequency);
let cpha = config.raw_phase();
let cpol = config.raw_polarity();
let lsbfirst = config.raw_byte_order();
rcc::enable_and_reset::<T>();
self.info.rcc.enable_and_reset();
let regs = self.info.regs;
#[cfg(any(spi_v1, spi_f1))]
{
regs.cr2().modify(|w| {
@ -209,18 +222,6 @@ impl<'d, M: PeriMode> Spi<'d, M> {
w.set_spe(true);
});
}
Self {
info: T::info(),
kernel_clock,
sck,
mosi,
miso,
tx_dma,
rx_dma,
current_word_size: <u8 as SealedWord>::CONFIG,
_phantom: PhantomData,
}
}
/// Reconfigures it with the supplied config.
@ -578,7 +579,7 @@ impl<'d> Spi<'d, Async> {
// see RM0453 rev 1 section 7.2.13 page 291
// The SUBGHZSPI_SCK frequency is obtained by PCLK3 divided by two.
// The SUBGHZSPI_SCK clock maximum speed must not exceed 16 MHz.
let pclk3_freq = <crate::peripherals::SUBGHZSPI as crate::rcc::SealedRccPeripheral>::frequency().0;
let pclk3_freq = <crate::peripherals::SUBGHZSPI as SealedRccPeripheral>::frequency().0;
let freq = Hertz(core::cmp::min(pclk3_freq / 2, 16_000_000));
let mut config = Config::default();
config.mode = MODE_0;