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</pre><pre class="rust"><code><span class="doccomment">//! This module contains all the structures and functions related to</span>
<span class="doccomment">//! interacting with the B15 on a high level. If you are writing code</span>
<span class="doccomment">//! for the B15, this is the module you want to use.</span>
<span class="kw">use</span> <span class="ident">std::process::Command</span>;
<span class="doccomment">/// Hardcoded commit hash of the most recent firmware</span>
<span class="kw">static</span> <span class="ident">COMMIT_HASH</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"bc459c80cec755d7df2c11a807d74e085cbed332"</span>;
<span class="macro">macro_rules!</span> <span class="ident">log</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>: <span class="ident">literal</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">arg</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>) => (<span class="macro">println!</span>(<span class="macro">concat!</span>(<span class="string">"[B15F] "</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>), $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">arg</span>)<span class="kw-2">*</span>));
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>: <span class="ident">literal</span>) => (<span class="macro">println!</span>(<span class="macro">concat!</span>(<span class="string">"[B15F] "</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>)));
}
<span class="macro">macro_rules!</span> <span class="ident">log_start</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>: <span class="ident">literal</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">arg</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>) => (<span class="macro">print!</span>(<span class="macro">concat!</span>(<span class="string">"[B15F] "</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>, <span class="string">"... "</span>), $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">arg</span>)<span class="kw-2">*</span>));
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>: <span class="ident">literal</span>) => (<span class="macro">print!</span>(<span class="macro">concat!</span>(<span class="string">"[B15F] "</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>, <span class="string">"... "</span>)));
}
<span class="macro">macro_rules!</span> <span class="ident">log_end</span> {
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>: <span class="ident">literal</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">arg</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>) => (<span class="macro">println!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">arg</span>)<span class="kw-2">*</span>));
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>: <span class="ident">literal</span>) => (<span class="macro">println!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">text</span>));
}
<span class="doccomment">/// Structure representing the driver for the board 15</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">B15F</span> {
}
<span class="kw">impl</span> <span class="ident">B15F</span> {
<span class="doccomment">/// Creates a new instance of the B15</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// This function will establish a connection to a connected B15 and return</span>
<span class="doccomment">/// a handle to interact with it. Only one such instance should exist per</span>
<span class="doccomment">/// program; calling `B15F::new()` more than once might lead to unexpected</span>
<span class="doccomment">/// behaviour.</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// # Examples</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// use b15f::B15F;</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// let drv = B15F::new().unwrap();</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">B15F</span>, <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">drv</span> <span class="op">=</span> <span class="ident">B15F</span> {};
<span class="ident">drv</span>.<span class="ident">init</span>()
}
<span class="kw">fn</span> <span class="ident">init</span>(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">B15F</span>, <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">devices</span> <span class="op">=</span> <span class="ident">B15F::get_devices</span>();
<span class="kw">let</span> <span class="ident">device</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">devices</span>.<span class="ident">first</span>() {
<span class="prelude-val">Some</span>(<span class="ident">item</span>) => <span class="ident">item</span>,
<span class="prelude-val">None</span> => <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Failed to find adapter"</span>)
};
<span class="macro">log!</span>(<span class="string">"Using adapter: {}"</span>, <span class="ident">device</span>);
<span class="macro">log_start!</span>(<span class="string">"Establish connection with adapter"</span>);
<span class="macro">todo!</span>(<span class="string">"Implement USART"</span>);
<span class="macro">log_end!</span>(<span class="string">"Ok!"</span>);
<span class="macro">log_start!</span>(<span class="string">"Testing connection"</span>);
<span class="macro">todo!</span>(<span class="string">"Test connection"</span>);
<span class="macro">log_end!</span>(<span class="string">"Ok!"</span>);
<span class="kw">let</span> <span class="ident">info</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_board_info</span>();
<span class="macro">log!</span>(<span class="string">"AVR firmware version: {} built at {} ({})"</span>, <span class="ident">info</span>[<span class="number">0</span>], <span class="ident">info</span>[<span class="number">1</span>], <span class="ident">info</span>[<span class="number">2</span>]);
<span class="kw">let</span> <span class="ident">avr_commit_hash</span> <span class="op">=</span> <span class="ident">info</span>[<span class="number">3</span>];
<span class="kw">if</span> <span class="ident">avr_commit_hash</span> <span class="op">!</span><span class="op">=</span> <span class="ident">COMMIT_HASH</span> {
<span class="macro">log!</span>(<span class="string">"Different commit hashes: {} vs {}"</span>, <span class="ident">avr_commit_hash</span>, <span class="ident">COMMIT_HASH</span>);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="string">"Versions incompatible. Please update the software!"</span>);
}
<span class="prelude-val">Ok</span>(<span class="self">self</span>)
}
<span class="doccomment">/// Yields information about the installed firmware on the B15</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// Returns an array of strings, where each string contains a piece</span>
<span class="doccomment">/// of information stored on the B15</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// # Examples</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// use b15f::B15F;</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// let drv = B15F::new().unwrap();</span>
<span class="doccomment">/// </span>
<span class="doccomment">/// // Print each bit of information on a new line</span>
<span class="doccomment">/// drv.get_board_info()</span>
<span class="doccomment">/// .iter()</span>
<span class="doccomment">/// .for_each(|info| println!("{info}"));</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_board_info</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">Vec</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">str</span><span class="op">></span> {
<span class="macro">todo!</span>();
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>, <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>))]</span>
<span class="kw">fn</span> <span class="ident">get_devices</span>() -> <span class="ident">Vec</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">output</span> <span class="op">=</span> <span class="ident">Command::new</span>(<span class="string">"bash"</span>)
.<span class="ident">args</span>([<span class="string">"-c"</span>, <span class="string">"ls /dev/ttyAMA*"</span>])
.<span class="ident">output</span>()
.<span class="ident">expect</span>(<span class="string">"Failed to get serial interface"</span>);
<span class="ident">String::from_utf8</span>(<span class="ident">output</span>.<span class="ident">stdout</span>)
.<span class="ident">expect</span>(<span class="string">"Failed to convert stdout to string"</span>)
.<span class="ident">split_ascii_whitespace</span>()
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">item</span><span class="op">|</span> <span class="ident">item</span>.<span class="ident">into</span>())
.<span class="ident">collect</span>()
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>))]</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>))]</span>
<span class="kw">fn</span> <span class="ident">get_devices</span>() -> <span class="ident">Vec</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">output</span> <span class="op">=</span> <span class="ident">Command::new</span>(<span class="string">"bash"</span>)
.<span class="ident">args</span>([<span class="string">"-c"</span>, <span class="string">"ls /dev/ttyUSB*"</span>])
.<span class="ident">output</span>()
.<span class="ident">expect</span>(<span class="string">"Failed to get serial interface"</span>);
<span class="ident">String::from_utf8</span>(<span class="ident">output</span>.<span class="ident">stdout</span>)
.<span class="ident">expect</span>(<span class="string">"Failed to convert stdout to string"</span>)
.<span class="ident">split_ascii_whitespace</span>()
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">item</span><span class="op">|</span> <span class="ident">item</span>.<span class="ident">into</span>())
.<span class="ident">collect</span>()
}
}</code></pre></div>
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