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libboard_zynq: impl embedded_hal serial write traits for Uart

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Astro 2020-04-24 21:31:37 +02:00
parent 61e67520d1
commit 04c47b9bdb
3 changed files with 51 additions and 0 deletions
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24
Cargo.lock generated
View File

@ -25,6 +25,15 @@ name = "compiler_builtins"
version = "0.1.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "embedded-hal"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"nb 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "experiments"
version = "0.0.0"
@ -52,8 +61,10 @@ name = "libboard_zynq"
version = "0.0.0"
dependencies = [
"bit_field 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
"embedded-hal 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"libcortex_a9 0.0.0",
"libregister 0.0.0",
"nb 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"smoltcp 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
"volatile-register 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -106,6 +117,11 @@ name = "managed"
version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "nb"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "pin-utils"
version = "0.1.0-alpha.4"
@ -131,6 +147,11 @@ name = "vcell"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "void"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "volatile-register"
version = "0.2.0"
@ -145,11 +166,14 @@ dependencies = [
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"checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
"checksum compiler_builtins 0.1.26 (registry+https://github.com/rust-lang/crates.io-index)" = "036b035e9ebcd705affece16319223d19f229e2358be6e3b7b094e57193312e6"
"checksum embedded-hal 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ee4908a155094da7723c2d60d617b820061e3b4efcc3d9e293d206a5a76c170b"
"checksum linked_list_allocator 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5825aea823c659d0fdcdbe8c9b78baf56f3a10365d783db874f6d360df72626f"
"checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
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"checksum nb 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b1411551beb3c11dedfb0a90a0fa256b47d28b9ec2cdff34c25a2fa59e45dbdc"
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2
libboard_zynq/Cargo.toml
View File

@ -12,6 +12,8 @@ target_cora_z7_10 = []
[dependencies]
volatile-register = "0.2"
bit_field = "0.10"
embedded-hal = "0.2"
nb = "0.1"
libregister = { path = "../libregister" }
libcortex_a9 = { path = "../libcortex_a9" }

25
libboard_zynq/src/uart/mod.rs
View File

@ -206,3 +206,28 @@ impl fmt::Write for Uart {
Ok(())
}
}
/// embedded_hal async API
impl embedded_hal::serial::Write<u8> for Uart {
type Error = ();
fn write(&mut self, b: u8) -> nb::Result<(), ()> {
if self.tx_fifo_full() {
Err(nb::Error::WouldBlock)
} else {
self.write_byte(b);
Ok(())
}
}
fn flush(&mut self) -> nb::Result<(), ()> {
if self.tx_fifo_empty() {
Ok(())
} else {
Err(nb::Error::WouldBlock)
}
}
}
/// embedded_hal sync API
impl embedded_hal::blocking::serial::write::Default<u8> for Uart {}