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https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2025-08-14 08:47:39 +00:00
Sync with Sharebrained's fw, only Xylos TX works for now
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@@ -115,16 +115,9 @@ static void dma_error() {
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void init() {
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gpdma_channel_sgpio.set_handlers(transfer_complete, dma_error);
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#if defined(PORTAPACK_BASEBAND_DMA_NO_SYNC)
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/* Disable synchronization logic to improve(?) DMA response time.
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* SGPIO (peripheral) must be on same clock as GPDMA peripheral.
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* SGPIO runs from BASE_PERIPH_CLK, which is set to PLL1 in normal
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* operation, same as the M4 and M0 cores. Memory, of course, is
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* running from the same clock as the cores.
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*/
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LPC_GPDMA->SYNC |= (1 << gpdma_src_peripheral);
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LPC_GPDMA->SYNC |= (1 << gpdma_dest_peripheral);
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#endif
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// LPC_GPDMA->SYNC |= (1 << gpdma_src_peripheral);
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// LPC_GPDMA->SYNC |= (1 << gpdma_dest_peripheral);
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}
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void configure(
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@@ -167,5 +160,16 @@ baseband::buffer_t wait_for_rx_buffer() {
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}
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}
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baseband::buffer_t wait_for_tx_buffer() {
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const auto next_index = thread_wait.sleep();
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if( next_index >= 0 ) {
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const size_t free_index = (next_index + transfers_per_buffer - 2) & transfers_mask;
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return { reinterpret_cast<sample_t*>(lli_loop[free_index].srcaddr), transfer_samples };
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} else {
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return { };
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}
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}
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} /* namespace dma */
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} /* namespace baseband */
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