zynq-rs/libboard_zynq/src/flash/spi_flash_register.rs

63 lines
1.3 KiB
Rust

use bit_field::BitField;
pub trait SpiFlashRegister {
fn inst_code() -> u8;
fn new(src: u8) -> Self;
}
macro_rules! u8_register {
($name: ident, $doc: tt, $inst_code: expr) => {
#[derive(Clone)]
#[doc=$doc]
pub struct $name {
pub inner: u8,
}
impl SpiFlashRegister for $name {
fn inst_code() -> u8 {
$inst_code
}
fn new(src: u8) -> Self {
$name {
inner: src,
}
}
}
impl $name {
#[allow(unused)]
pub fn is_zeroed(&self) -> bool {
self.inner == 0
}
}
};
}
u8_register!(CR, "Configuration Register", 0x35);
u8_register!(SR1, "Status Register-1", 0x05);
impl SR1 {
/// Write In Progress
pub fn wip(&self) -> bool {
self.inner.get_bit(0)
}
/// Write Enable Latch
pub fn wel(&self) -> bool {
self.inner.get_bit(1)
}
/// Erase Error Occurred
pub fn e_err(&self) -> bool {
self.inner.get_bit(5)
}
/// Programming Error Occurred
pub fn p_err(&self) -> bool {
self.inner.get_bit(6)
}
}
u8_register!(SR2, "Status Register-2", 0x07);
u8_register!(BA, "Bank Address Register", 0xB9);