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mimxrt/dma_channel: Fix the DMA channel management.

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The MIMXRT1011 has only 16 channels, so size the channel list accordingly.
This commit is contained in:
robert-hh 2021-10-03 20:54:18 +02:00 committed by Damien George
parent 101d2ddea3
commit 06d1b02014
1 changed files with 11 additions and 4 deletions
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11
ports/mimxrt/dma_channel.c
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@ -27,10 +27,17 @@
#include "dma_channel.h" #include "dma_channel.h"
// List of channel flags: true: channel used, false: channel available // List of channel flags: true: channel used, false: channel available
static bool channel_list[32] = { true, true, true, true, false, false, false, false, static bool channel_list[FSL_FEATURE_DMAMUX_MODULE_CHANNEL] = {
true, true, true, true, false, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
#if FSL_FEATURE_DMAMUX_MODULE_CHANNEL > 16
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false }; false, false, false, false, false, false, false, false
#endif
};
// allocate_channel(): retrieve an available channel. Return the number or -1 // allocate_channel(): retrieve an available channel. Return the number or -1
int allocate_dma_channel(void) { int allocate_dma_channel(void) {