1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/staging/kpc2000/kpc2000/dma_common_defs.h b/drivers/staging/kpc2000/kpc2000/dma_common_defs.h
new file mode 100644
index 000000000000..f35e636b1fb7
--- /dev/null
+++ b/drivers/staging/kpc2000/kpc2000/dma_common_defs.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef KPC_DMA_COMMON_DEFS_H_
+#define KPC_DMA_COMMON_DEFS_H_
+
+#define KPC_DMA_COMMON_OFFSET       0x4000
+#define KPC_DMA_S2C_BASE_OFFSET     0x0000
+#define KPC_DMA_C2S_BASE_OFFSET     0x2000
+#define KPC_DMA_ENGINE_SIZE         0x0100
+#define  ENGINE_CAP_PRESENT_MASK            0x1
+
+
+#define KPC_DMA_CARD_IRQ_ENABLE                 (1 << 0)
+#define KPC_DMA_CARD_IRQ_ACTIVE                 (1 << 1)
+#define KPC_DMA_CARD_IRQ_PENDING                (1 << 2)
+#define KPC_DMA_CARD_IRQ_MSI                    (1 << 3)
+#define KPC_DMA_CARD_USER_INTERRUPT_MODE        (1 << 4)
+#define KPC_DMA_CARD_USER_INTERRUPT_ACTIVE      (1 << 5)
+#define KPC_DMA_CARD_IRQ_MSIX_MODE              (1 << 6)
+#define KPC_DMA_CARD_MAX_PAYLOAD_SIZE_MASK      0x0700
+#define KPC_DMA_CARD_MAX_READ_REQUEST_SIZE_MASK 0x7000
+#define KPC_DMA_CARD_S2C_INTERRUPT_STATUS_MASK  0x00FF0000
+#define KPC_DMA_CARD_C2S_INTERRUPT_STATUS_MASK  0xFF000000
+
+static inline  void  SetBackEndControl(void __iomem *regs, u32 value)
+{
+    writel(value, regs + 0);
+}
+static inline  u32  GetBackEndStatus(void __iomem *regs)
+{
+    return readl(regs + 0);
+}
+
+static inline  u32  BackEndControlSetClear(void __iomem *regs, u32 set_bits, u32 clear_bits)
+{
+    u32 start_val = GetBackEndStatus(regs);
+    u32 new_val = start_val;
+    new_val &= ~clear_bits;
+    new_val |= set_bits;
+    SetBackEndControl(regs, new_val);
+    return start_val;
+}
+
+#endif /* KPC_DMA_COMMON_DEFS_H_ */