free_up_channels can only be called once for a started transaction.
Double free will undesirely stop the next picked 2D-DMA transaction on the same channel.
Add a blocking wrapper for async memcpy so simple users can wait for one DMA copy without writing their own ISR callback and semaphore plumbing. Update functional tests and documentation to use the simpler API where async completion handling is not needed.
Co-authored-by: Cursor <cursoragent@cursor.com>
- Add intr_priority field to gdma_channel_t structure
- Add intr_bind_name field to gdma_signal_conn_t for interrupt binding
- Validate intr_priority during channel allocation (must be 0-3)
- Use ESP_INTR_FLAG_SHARED_PRIVATE instead of ESP_INTR_FLAG_SHARED
- Use esp_intr_alloc_info() with bind_by.name for shared interrupts
- Add interrupt priority configuration test case
- Update all gdma_periph.c files with pair-specific bind names (gdma_gXpY)
