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rust: io: rename io::Io accessors

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Rename the I/O accessors provided by `Io` to encode the type as
number instead of letter. This is in preparation for Port I/O support
to use a trait for generic accessors.

Add a `c_fn` argument to the accessor generation macro to translate
between rust and C names.

Suggested-by: Danilo Krummrich <dakr@kernel.org>
Link: https://rust-for-linux.zulipchat.com/#narrow/channel/288089-General/topic/PIO.20support/near/499460541
Signed-off-by: Fiona Behrens <me@kloenk.dev>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250217-io-generic-rename-v1-1-06d97a9e3179@kloenk.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fiona Behrens
2025-02-17 21:58:14 +01:00
committed by Greg Kroah-Hartman
parent c5020c5be9
commit 354fd6e86f
2 changed files with 39 additions and 39 deletions
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12
samples/rust/rust_driver_pci.rs
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@@ -43,17 +43,17 @@ kernel::pci_device_table!(
impl SampleDriver {
fn testdev(index: &TestIndex, bar: &Bar0) -> Result<u32> {
// Select the test.
bar.writeb(index.0, Regs::TEST);
bar.write8(index.0, Regs::TEST);
let offset = u32::from_le(bar.readl(Regs::OFFSET)) as usize;
let data = bar.readb(Regs::DATA);
let offset = u32::from_le(bar.read32(Regs::OFFSET)) as usize;
let data = bar.read8(Regs::DATA);
// Write `data` to `offset` to increase `count` by one.
//
// Note that we need `try_writeb`, since `offset` can't be checked at compile-time.
bar.try_writeb(data, offset)?;
// Note that we need `try_write8`, since `offset` can't be checked at compile-time.
bar.try_write8(data, offset)?;
Ok(bar.readl(Regs::COUNT))
Ok(bar.read32(Regs::COUNT))
}
}