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authorLuke T. Shumaker <lukeshu@lukeshu.com>2025-04-05 21:41:15 -0600
committerLuke T. Shumaker <lukeshu@lukeshu.com>2025-04-05 21:41:15 -0600
commit5d72b64e90cd5252c2c25b6c6eb1e9cf5cc739f9 (patch)
tree3a29d91c3dfb3c7c580c87184a15b5bd54e55172 /libhw_cr/rp2040_dma.h
parent7fe3755f3a3dc11f1371b2b104fe3cf357da2310 (diff)
parent9758d91ea795448689ec401570bf556b8107177c (diff)
Merge branch 'lukeshu/net-flash'
Diffstat (limited to 'libhw_cr/rp2040_dma.h')
-rw-r--r--libhw_cr/rp2040_dma.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/libhw_cr/rp2040_dma.h b/libhw_cr/rp2040_dma.h
index e295adf..c7f5a8f 100644
--- a/libhw_cr/rp2040_dma.h
+++ b/libhw_cr/rp2040_dma.h
@@ -11,6 +11,7 @@
#define _LIBHW_CR_RP2040_DMA_H_
#include <assert.h>
+#include <stddef.h> /* for offsetof() */
#include <stdint.h> /* for uint32_t */
#include <hardware/regs/dreq.h> /* for DREQ_* for use with DMA_CTRL_TREQ_SEL() */
@@ -105,6 +106,8 @@ struct dma_alias3_short3 { READ_ADDR ; };
struct dma_alias2_short3: &dma_channel_hw_addr(CH)->al2_write_addr_trig, \
struct dma_alias3_short3: &dma_channel_hw_addr(CH)->al3_read_addr_trig))
+#define DMA_IS_TRIGGER(TYP, FIELD) (offsetof(TYP, FIELD) == 0xC)
+
#define DMA_CHAN_WR_TRANS_COUNT(TYP) \
(sizeof(TYP)/4)