lib: Add rp2040 build files

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 64 insertions, 0 deletions

diff --git a/lib/rp2040/hardware/structs/dma.h b/lib/rp2040/hardware/structs/dma.h
new file mode 100644
index 00000000..06cdf792
--- /dev/null
+++ b/lib/rp2040/hardware/structs/dma.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _HARDWARE_STRUCTS_DMA_H
+#define _HARDWARE_STRUCTS_DMA_H
+
+#include "hardware/address_mapped.h"
+#include "hardware/platform_defs.h"
+#include "hardware/regs/dma.h"
+
+typedef struct {
+    io_rw_32 read_addr;
+    io_rw_32 write_addr;
+    io_rw_32 transfer_count;
+    io_rw_32 ctrl_trig;
+    io_rw_32 al1_ctrl;
+    io_rw_32 al1_read_addr;
+    io_rw_32 al1_write_addr;
+    io_rw_32 al1_transfer_count_trig;
+    io_rw_32 al2_ctrl;
+    io_rw_32 al2_transfer_count;
+    io_rw_32 al2_read_addr;
+    io_rw_32 al2_write_addr_trig;
+    io_rw_32 al3_ctrl;
+    io_rw_32 al3_write_addr;
+    io_rw_32 al3_transfer_count;
+    io_rw_32 al3_read_addr_trig;
+}  dma_channel_hw_t;
+
+typedef struct {
+    dma_channel_hw_t ch[NUM_DMA_CHANNELS];
+    uint32_t _pad0[16 * (16 - NUM_DMA_CHANNELS)];
+    io_ro_32 intr;
+    io_rw_32 inte0;
+    io_rw_32 intf0;
+    io_rw_32 ints0;
+    uint32_t _pad1[1];
+    io_rw_32 inte1;
+    io_rw_32 intf1;
+    io_rw_32 ints1;
+    io_rw_32 timer[4];
+    io_wo_32 multi_channel_trigger;
+    io_rw_32 sniff_ctrl;
+    io_rw_32 sniff_data;
+    uint32_t _pad2[1];
+    io_ro_32 fifo_levels;
+    io_wo_32 abort;
+} dma_hw_t;
+
+typedef struct {
+    struct dma_debug_hw_channel {
+        io_ro_32 ctrdeq;
+        io_ro_32 tcr;
+        uint32_t pad[14];
+    } ch[NUM_DMA_CHANNELS];
+} dma_debug_hw_t;
+
+#define dma_hw ((dma_hw_t *const)DMA_BASE)
+#define dma_debug_hw ((dma_debug_hw_t *const)(DMA_BASE + DMA_CH0_DBG_CTDREQ_OFFSET))
+
+#endif