Merge data_dev_top and data_gpu_top

Moved data_dev_top to common/driver and used the same symlink
pattern that the other files use.

data_gpu/driver/src/data_gpu_top.h → common/driver/data_dev_top.h

@@ -3,7 +3,7 @@
  * Company    : SLAC National Accelerator Laboratory
  *-----------------------------------------------------------------------------
  * Description:
- *    Defines the top-level module types and functions for the Data GPU Device driver.
+ *    Defines the top-level module types and functions for the Data Device driver.
  *    This driver is part of the aes_stream_drivers package.
  * ----------------------------------------------------------------------------
  * This file is part of the aes_stream_drivers package. It is subject to
@@ -16,42 +16,40 @@
  * ----------------------------------------------------------------------------
 **/
 
-#ifndef __DATA_GPU_TOP_H__
-#define __DATA_GPU_TOP_H__
+#ifndef __DATA_DEV_TOP_H__
+#define __DATA_DEV_TOP_H__
 
 #include <linux/types.h>
 #include <linux/device.h>
 #include <linux/pci.h>
 #include <dma_common.h>
 
-/* Maximum number of DMA devices */
+/** Maximum number of DMA devices supported. */
 #define MAX_DMA_DEVICES 32
 
-/* PCI IDs */
+/** PCI vendor and device identifiers. */
 #define PCI_VENDOR_ID_SLAC 0x1a4a
 #define PCI_DEVICE_ID_DDEV 0x2030
 
-/* Memory mapping offsets and sizes */
-#define AGEN2_OFF   0x00000000
-#define AGEN2_SIZE  0x00010000
-#define PHY_OFF     0x00010000
-#define PHY_SIZE    0x00010000
-#define AVER_OFF    0x00020000
-#define AVER_SIZE   0x00010000
-#define PROM_OFF    0x00030000
-#define PROM_SIZE   0x00050000
-#define USER_OFF    0x00800000
-#define USER_SIZE   0x00800000
-
-/* Function prototypes */
-int32_t DataGpu_Init(void);
-void DataGpu_Exit(void);
-int DataGpu_Probe(struct pci_dev *pcidev, const struct pci_device_id *dev_id);
-void DataGpu_Remove(struct pci_dev *pcidev);
-int32_t DataGpu_Command(struct DmaDevice *dev, uint32_t cmd, uint64_t arg);
-void DataGpu_SeqShow(struct seq_file *s, struct DmaDevice *dev);
-
-/* Hardware function operations */
-extern struct hardware_functions DataGpu_functions;
-
-#endif /* __DATA_GPU_TOP_H__ */
+/** Address map for device registers. */
+#define AGEN2_OFF   0x00000000 /**< DMAv2 Engine Offset */
+#define AGEN2_SIZE  0x00010000 /**< DMAv2 Engine Size */
+#define PHY_OFF     0x00010000 /**< PCIe PHY Offset */
+#define PHY_SIZE    0x00010000 /**< PCIe PHY Size */
+#define AVER_OFF    0x00020000 /**< AxiVersion Offset */
+#define AVER_SIZE   0x00010000 /**< AxiVersion Size */
+#define PROM_OFF    0x00030000 /**< PROM Offset */
+#define PROM_SIZE   0x00050000 /**< PROM Size */
+#define USER_OFF    0x00800000 /**< User Space Offset */
+#define USER_SIZE   0x00800000 /**< User Space Size */
+
+// Function prototypes
+int32_t DataDev_Init(void);
+void DataDev_Exit(void);
+int DataDev_Probe(struct pci_dev *pcidev, const struct pci_device_id *dev_id);
+void  DataDev_Remove(struct pci_dev *pcidev);
+int32_t DataDev_Command(struct DmaDevice *dev, uint32_t cmd, uint64_t arg);
+void DataDev_SeqShow(struct seq_file *s, struct DmaDevice *dev);
+extern struct hardware_functions DataDev_functions;
+
+#endif  // __DATA_DEV_TOP_H__