1 files changed, 73 insertions, 0 deletions
diff --git a/include/hw/dma/pl080.h b/include/hw/dma/pl080.h
new file mode 100644
index 000000000..3c9659e43
--- /dev/null
+++ b/include/hw/dma/pl080.h
@@ -0,0 +1,73 @@
+/*
+ * ARM PrimeCell PL080/PL081 DMA controller
+ *
+ * Copyright (c) 2006 CodeSourcery.
+ * Copyright (c) 2018 Linaro Limited
+ * Written by Paul Brook, Peter Maydell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 or
+ * (at your option) any later version.
+ */
+
+/*
+ * This is a model of the Arm PrimeCell PL080/PL081 DMA controller:
+ * The PL080 TRM is:
+ * https://developer.arm.com/documentation/ddi0196/latest
+ * and the PL081 TRM is:
+ * https://developer.arm.com/documentation/ddi0218/latest
+ *
+ * QEMU interface:
+ * + sysbus IRQ 0: DMACINTR combined interrupt line
+ * + sysbus IRQ 1: DMACINTERR error interrupt request
+ * + sysbus IRQ 2: DMACINTTC count interrupt request
+ * + sysbus MMIO region 0: MemoryRegion for the device's registers
+ * + QOM property "downstream": MemoryRegion defining where DMA
+ *   bus master transactions are made
+ */
+
+#ifndef HW_DMA_PL080_H
+#define HW_DMA_PL080_H
+
+#include "hw/sysbus.h"
+#include "qom/object.h"
+
+#define PL080_MAX_CHANNELS 8
+
+typedef struct {
+    uint32_t src;
+    uint32_t dest;
+    uint32_t lli;
+    uint32_t ctrl;
+    uint32_t conf;
+} pl080_channel;
+
+#define TYPE_PL080 "pl080"
+#define TYPE_PL081 "pl081"
+OBJECT_DECLARE_SIMPLE_TYPE(PL080State, PL080)
+
+struct PL080State {
+    SysBusDevice parent_obj;
+
+    MemoryRegion iomem;
+    uint8_t tc_int;
+    uint8_t tc_mask;
+    uint8_t err_int;
+    uint8_t err_mask;
+    uint32_t conf;
+    uint32_t sync;
+    uint32_t req_single;
+    uint32_t req_burst;
+    pl080_channel chan[PL080_MAX_CHANNELS];
+    int nchannels;
+    /* Flag to avoid recursive DMA invocations.  */
+    int running;
+    qemu_irq irq;
+    qemu_irq interr;
+    qemu_irq inttc;
+
+    MemoryRegion *downstream;
+    AddressSpace downstream_as;
+};
+
+#endif