d71434adfb
* esp-wifi uses global allocator, esp-alloc supports multiple regions * CHANGELOG.md * Apply suggestions * Use `alloc` when linting esp-wifi * Make coex example build for ESP32 * Re-enable some wifi examples for ESP32-S2 * Optionally depend on `esp-alloc` (by default) * Rename INSTANCE -> HEAP
44 lines
1.3 KiB
Rust
44 lines
1.3 KiB
Rust
//! Macros provided for convenience
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/// Initialize a global heap allocator providing a heap of the given size in
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/// bytes
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#[macro_export]
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macro_rules! heap_allocator {
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($size:expr) => {{
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static mut HEAP: core::mem::MaybeUninit<[u8; $size]> = core::mem::MaybeUninit::uninit();
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unsafe {
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$crate::HEAP.add_region($crate::HeapRegion::new(
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HEAP.as_mut_ptr() as *mut u8,
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$size,
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$crate::MemoryCapability::Internal.into(),
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));
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}
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}};
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}
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/// Initialize a global heap allocator backed by PSRAM
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///
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/// You need a SoC which supports PSRAM
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/// and activate the feature to enable it. You need to pass the PSRAM peripheral
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/// and the psram module path.
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///
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/// # Usage
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/// ```rust, no_run
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/// esp_alloc::psram_allocator!(peripherals.PSRAM, hal::psram);
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/// ```
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#[macro_export]
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macro_rules! psram_allocator {
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($peripheral:expr,$psram_module:path) => {{
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use $psram_module as _psram;
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_psram::init_psram($peripheral);
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unsafe {
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$crate::HEAP.add_region($crate::HeapRegion::new(
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_psram::psram_vaddr_start() as *mut u8,
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_psram::PSRAM_BYTES,
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$crate::MemoryCapability::External.into(),
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));
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}
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}};
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}
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