lib: Add rp2040 build files

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

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/rp2040/hardware/structs/pio.h b/lib/rp2040/hardware/structs/pio.h
new file mode 100644
index 00000000..176863bb
--- /dev/null
+++ b/lib/rp2040/hardware/structs/pio.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _HARDWARE_STRUCTS_PIO_H
+#define _HARDWARE_STRUCTS_PIO_H
+
+#include "hardware/address_mapped.h"
+#include "hardware/platform_defs.h"
+#include "hardware/regs/pio.h"
+
+typedef struct {
+    io_rw_32 ctrl;
+    io_ro_32 fstat;
+    io_rw_32 fdebug;
+    io_ro_32 flevel;
+    io_wo_32 txf[NUM_PIO_STATE_MACHINES];
+    io_ro_32 rxf[NUM_PIO_STATE_MACHINES];
+    io_rw_32 irq;
+    io_wo_32 irq_force;
+    io_rw_32 input_sync_bypass;
+    io_rw_32 dbg_padout;
+    io_rw_32 dbg_padoe;
+    io_rw_32 dbg_cfginfo;
+    io_wo_32 instr_mem[32];
+    struct pio_sm_hw {
+        io_rw_32 clkdiv;
+        io_rw_32 execctrl;
+        io_rw_32 shiftctrl;
+        io_ro_32 addr;
+        io_rw_32 instr;
+        io_rw_32 pinctrl;
+    } sm[NUM_PIO_STATE_MACHINES];
+    io_rw_32 intr;
+    io_rw_32 inte0;
+    io_rw_32 intf0;
+    io_ro_32 ints0;
+    io_rw_32 inte1;
+    io_rw_32 intf1;
+    io_ro_32 ints1;
+} pio_hw_t;
+
+#define pio0_hw ((pio_hw_t *const)PIO0_BASE)
+#define pio1_hw ((pio_hw_t *const)PIO1_BASE)
+
+#endif