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cleanup rcc bit matching.

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This commit is contained in:
Dario Nieuwenhuis 2024-02-01 23:36:45 +01:00
parent 9e844dc5ac
commit c6ad5e265a
1 changed files with 22 additions and 56 deletions
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78
stm32-data-gen/src/rcc.rs
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@ -315,73 +315,39 @@ impl PeripheralToClock {
rcc_block: &(String, String, String),
peri_name: &str,
) -> Option<&stm32_data_serde::chip::core::peripheral::Rcc> {
const PERI_OVERRIDE: &[(&str, &[&str])] = &[("DCMI", &["DCMI_PSSI"]), ("PSSI", &["DCMI_PSSI"])];
const PERI_OVERRIDE: &[(&str, &[&str])] = &[
("DCMI", &["DCMI_PSSI"]),
("PSSI", &["DCMI_PSSI"]),
("FDCAN1", &["FDCAN12", "FDCAN"]),
("FDCAN2", &["FDCAN12", "FDCAN"]),
("FDCAN3", &["FDCAN"]),
("ADC", &["ADC1"]),
("ADC1", &["ADC12", "ADC"]),
("ADC2", &["ADC12", "ADC"]),
("ADC3", &["ADC34", "ADC345", "ADC"]),
("ADC4", &["ADC34", "ADC345"]),
("ADC5", &["ADC345"]),
];
let clocks = self.0.get(rcc_block)?;
if peri_name.starts_with("ADC") && !peri_name.contains("COMMON") {
return self.match_adc_peri_clock(clocks, peri_name);
}
if regex!("^FDCAN[0-9]*$").is_match(peri_name) {
return [peri_name, "FDCAN12", "FDCAN"]
.into_iter()
.find_map(|name| clocks.get(name));
}
if let Some(res) = clocks.get(peri_name) {
Some(res)
} else if let Some(peri_name) = peri_name.strip_suffix('1') {
self.match_peri_clock(rcc_block, peri_name)
} else if let Some((_, rename)) = PERI_OVERRIDE.iter().find(|(n, _)| *n == peri_name) {
for n in *rename {
if let Some(res) = self.match_peri_clock(rcc_block, n) {
return Some(res);
}
if let Some((_, rename)) = PERI_OVERRIDE.iter().find(|(n, _)| *n == peri_name) {
for &n in *rename {
if let Some(res) = clocks.get(n) {
return Some(res);
}
}
None
} else {
None
}
}
fn match_adc_peri_clock<'a>(
&'a self,
clocks: &'a HashMap<String, stm32_data_serde::chip::core::peripheral::Rcc>,
peri_name: &str,
) -> Option<&stm32_data_serde::chip::core::peripheral::Rcc> {
// Direct match
if clocks.contains_key(peri_name) {
return clocks.get(peri_name);
}
// Paired match based on odd/even
if let Some(digit_char) = peri_name.chars().last() {
if let Some(digit) = digit_char.to_digit(10) {
let paired = if digit % 2 == 1 {
format!("ADC{}{}", digit, digit + 1)
} else {
format!("ADC{}{}", digit - 1, digit)
};
if clocks.contains_key(paired.as_str()) {
return clocks.get(paired.as_str());
}
if let Some(n) = peri_name.strip_suffix('1') {
if let Some(res) = clocks.get(n) {
return Some(res);
}
}
// If adc is 3, 4, or 5, check for ADC345
if (peri_name == "ADC3" || peri_name == "ADC4" || peri_name == "ADC5") && clocks.contains_key("ADC345") {
return clocks.get("ADC345");
}
// Look for bare ADC clock register
if clocks.contains_key("ADC") {
return clocks.get("ADC");
}
// Absolute fallback, match against the clocks for just the first ADC
if peri_name == "ADC" && clocks.contains_key("ADC1") {
return clocks.get("ADC1");
}
None
}
}