v_vscaler: Added new driver

HLS generated driver along with manually written layer 2. Driver
tcl update is pending

Signed-off-by: Rohit Consul <rohit.consul@xilinx.com>

XilinxProcessorIPLib/drivers/v_vscaler/data/v_vscaler.mdd

@@ -0,0 +1,18 @@
+# ==============================================================
+# File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+# Version: 2015.1
+# Copyright (C) 2015 Xilinx Inc. All rights reserved.
+#
+# ==============================================================
+
+OPTION psf_version = 2.1;
+
+BEGIN driver v_vscaler
+
+ OPTION supported_peripherals = (v_vscaler_v1_0 );
+ OPTION driver_state = ACTIVE;
+ OPTION copyfiles = all;
+ OPTION name = v_vscaler;
+ OPTION version = 1.0;
+
+END driver

XilinxProcessorIPLib/drivers/v_vscaler/data/v_vscaler.tcl

@@ -0,0 +1,23 @@
+# ==============================================================
+# File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+# Version: 2015.1
+# Copyright (C) 2015 Xilinx Inc. All rights reserved.
+#
+# ==============================================================
+
+proc generate {drv_handle} {
+    xdefine_include_file $drv_handle "xparameters.h" "XV_vscaler" \
+        "NUM_INSTANCES" \
+        "DEVICE_ID" \
+        "C_S_AXI_CTRL_BASEADDR" \
+        "C_S_AXI_CTRL_HIGHADDR"
+
+    xdefine_config_file $drv_handle "xv_vscaler_g.c" "XV_vscaler" \
+        "DEVICE_ID" \
+        "C_S_AXI_CTRL_BASEADDR"
+
+    xdefine_canonical_xpars $drv_handle "xparameters.h" "XV_vscaler" \
+        "DEVICE_ID" \
+        "C_S_AXI_CTRL_BASEADDR" \
+        "C_S_AXI_CTRL_HIGHADDR"
+}

XilinxProcessorIPLib/drivers/v_vscaler/src/Makefile

@@ -0,0 +1,34 @@
+# ==============================================================
+# File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+# Version: 2015.1
+# Copyright (C) 2015 Xilinx Inc. All rights reserved.
+#
+# ==============================================================
+
+COMPILER=
+ARCHIVER=
+CP=cp
+COMPILER_FLAGS=
+EXTRA_COMPILER_FLAGS=
+LIB=libxil.a
+
+RELEASEDIR=../../../lib
+INCLUDEDIR=../../../include
+INCLUDES=-I./. -I${INCLUDEDIR}
+
+INCLUDEFILES=*.h
+LIBSOURCES=*.c
+OUTS = *.o
+
+
+libs:
+	echo "Compiling v_vscaler"
+	$(COMPILER) $(COMPILER_FLAGS) $(EXTRA_COMPILER_FLAGS) $(INCLUDES) $(LIBSOURCES)
+	$(ARCHIVER) -r ${RELEASEDIR}/${LIB} $(OUTS)
+	make clean
+
+include:
+	${CP} $(INCLUDEFILES) $(INCLUDEDIR)
+
+clean:
+	rm -rf ${OUTS}

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler.c

@@ -0,0 +1,295 @@
+// ==============================================================
+// File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+// Version: 2015.1
+// Copyright (C) 2015 Xilinx Inc. All rights reserved.
+//
+// ==============================================================
+
+/***************************** Include Files *********************************/
+#include "xv_vscaler.h"
+
+/************************** Function Implementation *************************/
+#ifndef __linux__
+int XV_vscaler_CfgInitialize(XV_vscaler *InstancePtr, XV_vscaler_Config *ConfigPtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(ConfigPtr != NULL);
+
+    InstancePtr->Ctrl_BaseAddress = ConfigPtr->Ctrl_BaseAddress;
+    InstancePtr->IsReady = XIL_COMPONENT_IS_READY;
+
+    return XST_SUCCESS;
+}
+#endif
+
+void XV_vscaler_Start(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL) & 0x80;
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL, Data | 0x01);
+}
+
+u32 XV_vscaler_IsDone(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL);
+    return (Data >> 1) & 0x1;
+}
+
+u32 XV_vscaler_IsIdle(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL);
+    return (Data >> 2) & 0x1;
+}
+
+u32 XV_vscaler_IsReady(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL);
+    // check ap_start to see if the pcore is ready for next input
+    return !(Data & 0x1);
+}
+
+void XV_vscaler_EnableAutoRestart(XV_vscaler *InstancePtr) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL, 0x80);
+}
+
+void XV_vscaler_DisableAutoRestart(XV_vscaler *InstancePtr) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL, 0);
+}
+
+void XV_vscaler_Set_HwReg_HeightIn(XV_vscaler *InstancePtr, u32 Data) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_HEIGHTIN_DATA, Data);
+}
+
+u32 XV_vscaler_Get_HwReg_HeightIn(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_HEIGHTIN_DATA);
+    return Data;
+}
+
+void XV_vscaler_Set_HwReg_Width(XV_vscaler *InstancePtr, u32 Data) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_WIDTH_DATA, Data);
+}
+
+u32 XV_vscaler_Get_HwReg_Width(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_WIDTH_DATA);
+    return Data;
+}
+
+void XV_vscaler_Set_HwReg_HeightOut(XV_vscaler *InstancePtr, u32 Data) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_HEIGHTOUT_DATA, Data);
+}
+
+u32 XV_vscaler_Get_HwReg_HeightOut(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_HEIGHTOUT_DATA);
+    return Data;
+}
+
+void XV_vscaler_Set_HwReg_LineRate(XV_vscaler *InstancePtr, u32 Data) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_LINERATE_DATA, Data);
+}
+
+u32 XV_vscaler_Get_HwReg_LineRate(XV_vscaler *InstancePtr) {
+    u32 Data;
+
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Data = XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_HWREG_LINERATE_DATA);
+    return Data;
+}
+
+u32 XV_vscaler_Get_HwReg_vfltCoeff_BaseAddress(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return (InstancePtr->Ctrl_BaseAddress + XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE);
+}
+
+u32 XV_vscaler_Get_HwReg_vfltCoeff_HighAddress(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return (InstancePtr->Ctrl_BaseAddress + XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH);
+}
+
+u32 XV_vscaler_Get_HwReg_vfltCoeff_TotalBytes(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return (XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH - XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + 1);
+}
+
+u32 XV_vscaler_Get_HwReg_vfltCoeff_BitWidth(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return XV_VSCALER_CTRL_WIDTH_HWREG_VFLTCOEFF;
+}
+
+u32 XV_vscaler_Get_HwReg_vfltCoeff_Depth(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return XV_VSCALER_CTRL_DEPTH_HWREG_VFLTCOEFF;
+}
+
+u32 XV_vscaler_Write_HwReg_vfltCoeff_Words(XV_vscaler *InstancePtr, int offset, int *data, int length) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr -> IsReady == XIL_COMPONENT_IS_READY);
+
+    int i;
+
+    if ((offset + length)*4 > (XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH - XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + 1))
+        return 0;
+
+    for (i = 0; i < length; i++) {
+        *(int *)(InstancePtr->Ctrl_BaseAddress + XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + (offset + i)*4) = *(data + i);
+    }
+    return length;
+}
+
+u32 XV_vscaler_Read_HwReg_vfltCoeff_Words(XV_vscaler *InstancePtr, int offset, int *data, int length) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr -> IsReady == XIL_COMPONENT_IS_READY);
+
+    int i;
+
+    if ((offset + length)*4 > (XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH - XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + 1))
+        return 0;
+
+    for (i = 0; i < length; i++) {
+        *(data + i) = *(int *)(InstancePtr->Ctrl_BaseAddress + XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + (offset + i)*4);
+    }
+    return length;
+}
+
+u32 XV_vscaler_Write_HwReg_vfltCoeff_Bytes(XV_vscaler *InstancePtr, int offset, char *data, int length) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr -> IsReady == XIL_COMPONENT_IS_READY);
+
+    int i;
+
+    if ((offset + length) > (XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH - XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + 1))
+        return 0;
+
+    for (i = 0; i < length; i++) {
+        *(char *)(InstancePtr->Ctrl_BaseAddress + XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + offset + i) = *(data + i);
+    }
+    return length;
+}
+
+u32 XV_vscaler_Read_HwReg_vfltCoeff_Bytes(XV_vscaler *InstancePtr, int offset, char *data, int length) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr -> IsReady == XIL_COMPONENT_IS_READY);
+
+    int i;
+
+    if ((offset + length) > (XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH - XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + 1))
+        return 0;
+
+    for (i = 0; i < length; i++) {
+        *(data + i) = *(char *)(InstancePtr->Ctrl_BaseAddress + XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE + offset + i);
+    }
+    return length;
+}
+
+void XV_vscaler_InterruptGlobalEnable(XV_vscaler *InstancePtr) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_GIE, 1);
+}
+
+void XV_vscaler_InterruptGlobalDisable(XV_vscaler *InstancePtr) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_GIE, 0);
+}
+
+void XV_vscaler_InterruptEnable(XV_vscaler *InstancePtr, u32 Mask) {
+    u32 Register;
+
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Register =  XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_IER);
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_IER, Register | Mask);
+}
+
+void XV_vscaler_InterruptDisable(XV_vscaler *InstancePtr, u32 Mask) {
+    u32 Register;
+
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    Register =  XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_IER);
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_IER, Register & (~Mask));
+}
+
+void XV_vscaler_InterruptClear(XV_vscaler *InstancePtr, u32 Mask) {
+    Xil_AssertVoid(InstancePtr != NULL);
+    Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    XV_vscaler_WriteReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_ISR, Mask);
+}
+
+u32 XV_vscaler_InterruptGetEnabled(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_IER);
+}
+
+u32 XV_vscaler_InterruptGetStatus(XV_vscaler *InstancePtr) {
+    Xil_AssertNonvoid(InstancePtr != NULL);
+    Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    return XV_vscaler_ReadReg(InstancePtr->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_ISR);
+}

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler.h

@@ -0,0 +1,120 @@
+// ==============================================================
+// File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+// Version: 2015.1
+// Copyright (C) 2015 Xilinx Inc. All rights reserved.
+//
+// ==============================================================
+
+#ifndef XV_VSCALER_H
+#define XV_VSCALER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***************************** Include Files *********************************/
+#ifndef __linux__
+#include "xil_types.h"
+#include "xil_assert.h"
+#include "xstatus.h"
+#include "xil_io.h"
+#else
+#include <stdint.h>
+#include <assert.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <stddef.h>
+#endif
+#include "xv_vscaler_hw.h"
+
+/**************************** Type Definitions ******************************/
+#ifdef __linux__
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+#else
+typedef struct {
+    u16 DeviceId;
+    u32 Ctrl_BaseAddress;
+} XV_vscaler_Config;
+#endif
+
+typedef struct {
+    u32 Ctrl_BaseAddress;
+    u32 IsReady;
+} XV_vscaler;
+
+/***************** Macros (Inline Functions) Definitions *********************/
+#ifndef __linux__
+#define XV_vscaler_WriteReg(BaseAddress, RegOffset, Data) \
+    Xil_Out32((BaseAddress) + (RegOffset), (u32)(Data))
+#define XV_vscaler_ReadReg(BaseAddress, RegOffset) \
+    Xil_In32((BaseAddress) + (RegOffset))
+#else
+#define XV_vscaler_WriteReg(BaseAddress, RegOffset, Data) \
+    *(volatile u32*)((BaseAddress) + (RegOffset)) = (u32)(Data)
+#define XV_vscaler_ReadReg(BaseAddress, RegOffset) \
+    *(volatile u32*)((BaseAddress) + (RegOffset))
+
+#define Xil_AssertVoid(expr)    assert(expr)
+#define Xil_AssertNonvoid(expr) assert(expr)
+
+#define XST_SUCCESS             0
+#define XST_DEVICE_NOT_FOUND    2
+#define XST_OPEN_DEVICE_FAILED  3
+#define XIL_COMPONENT_IS_READY  1
+#endif
+
+/************************** Function Prototypes *****************************/
+#ifndef __linux__
+int XV_vscaler_Initialize(XV_vscaler *InstancePtr, u16 DeviceId);
+XV_vscaler_Config* XV_vscaler_LookupConfig(u16 DeviceId);
+int XV_vscaler_CfgInitialize(XV_vscaler *InstancePtr, XV_vscaler_Config *ConfigPtr);
+#else
+int XV_vscaler_Initialize(XV_vscaler *InstancePtr, const char* InstanceName);
+int XV_vscaler_Release(XV_vscaler *InstancePtr);
+#endif
+
+void XV_vscaler_Start(XV_vscaler *InstancePtr);
+u32 XV_vscaler_IsDone(XV_vscaler *InstancePtr);
+u32 XV_vscaler_IsIdle(XV_vscaler *InstancePtr);
+u32 XV_vscaler_IsReady(XV_vscaler *InstancePtr);
+void XV_vscaler_EnableAutoRestart(XV_vscaler *InstancePtr);
+void XV_vscaler_DisableAutoRestart(XV_vscaler *InstancePtr);
+
+void XV_vscaler_Set_HwReg_HeightIn(XV_vscaler *InstancePtr, u32 Data);
+u32 XV_vscaler_Get_HwReg_HeightIn(XV_vscaler *InstancePtr);
+void XV_vscaler_Set_HwReg_Width(XV_vscaler *InstancePtr, u32 Data);
+u32 XV_vscaler_Get_HwReg_Width(XV_vscaler *InstancePtr);
+void XV_vscaler_Set_HwReg_HeightOut(XV_vscaler *InstancePtr, u32 Data);
+u32 XV_vscaler_Get_HwReg_HeightOut(XV_vscaler *InstancePtr);
+void XV_vscaler_Set_HwReg_LineRate(XV_vscaler *InstancePtr, u32 Data);
+u32 XV_vscaler_Get_HwReg_LineRate(XV_vscaler *InstancePtr);
+u32 XV_vscaler_Get_HwReg_vfltCoeff_BaseAddress(XV_vscaler *InstancePtr);
+u32 XV_vscaler_Get_HwReg_vfltCoeff_HighAddress(XV_vscaler *InstancePtr);
+u32 XV_vscaler_Get_HwReg_vfltCoeff_TotalBytes(XV_vscaler *InstancePtr);
+u32 XV_vscaler_Get_HwReg_vfltCoeff_BitWidth(XV_vscaler *InstancePtr);
+u32 XV_vscaler_Get_HwReg_vfltCoeff_Depth(XV_vscaler *InstancePtr);
+u32 XV_vscaler_Write_HwReg_vfltCoeff_Words(XV_vscaler *InstancePtr, int offset, int *data, int length);
+u32 XV_vscaler_Read_HwReg_vfltCoeff_Words(XV_vscaler *InstancePtr, int offset, int *data, int length);
+u32 XV_vscaler_Write_HwReg_vfltCoeff_Bytes(XV_vscaler *InstancePtr, int offset, char *data, int length);
+u32 XV_vscaler_Read_HwReg_vfltCoeff_Bytes(XV_vscaler *InstancePtr, int offset, char *data, int length);
+
+void XV_vscaler_InterruptGlobalEnable(XV_vscaler *InstancePtr);
+void XV_vscaler_InterruptGlobalDisable(XV_vscaler *InstancePtr);
+void XV_vscaler_InterruptEnable(XV_vscaler *InstancePtr, u32 Mask);
+void XV_vscaler_InterruptDisable(XV_vscaler *InstancePtr, u32 Mask);
+void XV_vscaler_InterruptClear(XV_vscaler *InstancePtr, u32 Mask);
+u32 XV_vscaler_InterruptGetEnabled(XV_vscaler *InstancePtr);
+u32 XV_vscaler_InterruptGetStatus(XV_vscaler *InstancePtr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler_hw.h

@@ -0,0 +1,63 @@
+// ==============================================================
+// File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+// Version: 2015.1
+// Copyright (C) 2015 Xilinx Inc. All rights reserved.
+//
+// ==============================================================
+
+// CTRL
+// 0x000 : Control signals
+//         bit 0  - ap_start (Read/Write/COH)
+//         bit 1  - ap_done (Read/COR)
+//         bit 2  - ap_idle (Read)
+//         bit 3  - ap_ready (Read)
+//         bit 7  - auto_restart (Read/Write)
+//         others - reserved
+// 0x004 : Global Interrupt Enable Register
+//         bit 0  - Global Interrupt Enable (Read/Write)
+//         others - reserved
+// 0x008 : IP Interrupt Enable Register (Read/Write)
+//         bit 0  - Channel 0 (ap_done)
+//         bit 1  - Channel 1 (ap_ready)
+//         others - reserved
+// 0x00c : IP Interrupt Status Register (Read/TOW)
+//         bit 0  - Channel 0 (ap_done)
+//         bit 1  - Channel 1 (ap_ready)
+//         others - reserved
+// 0x010 : Data signal of HwReg_HeightIn
+//         bit 15~0 - HwReg_HeightIn[15:0] (Read/Write)
+//         others   - reserved
+// 0x014 : reserved
+// 0x018 : Data signal of HwReg_Width
+//         bit 15~0 - HwReg_Width[15:0] (Read/Write)
+//         others   - reserved
+// 0x01c : reserved
+// 0x020 : Data signal of HwReg_HeightOut
+//         bit 15~0 - HwReg_HeightOut[15:0] (Read/Write)
+//         others   - reserved
+// 0x024 : reserved
+// 0x028 : Data signal of HwReg_LineRate
+//         bit 31~0 - HwReg_LineRate[31:0] (Read/Write)
+// 0x02c : reserved
+// 0x400 ~
+// 0x7ff : Memory 'HwReg_vfltCoeff' (384 * 16b)
+//         Word n : bit [15: 0] - HwReg_vfltCoeff[2n]
+//                  bit [31:16] - HwReg_vfltCoeff[2n+1]
+// (SC = Self Clear, COR = Clear on Read, TOW = Toggle on Write, COH = Clear on Handshake)
+
+#define XV_VSCALER_CTRL_ADDR_AP_CTRL              0x000
+#define XV_VSCALER_CTRL_ADDR_GIE                  0x004
+#define XV_VSCALER_CTRL_ADDR_IER                  0x008
+#define XV_VSCALER_CTRL_ADDR_ISR                  0x00c
+#define XV_VSCALER_CTRL_ADDR_HWREG_HEIGHTIN_DATA  0x010
+#define XV_VSCALER_CTRL_BITS_HWREG_HEIGHTIN_DATA  16
+#define XV_VSCALER_CTRL_ADDR_HWREG_WIDTH_DATA     0x018
+#define XV_VSCALER_CTRL_BITS_HWREG_WIDTH_DATA     16
+#define XV_VSCALER_CTRL_ADDR_HWREG_HEIGHTOUT_DATA 0x020
+#define XV_VSCALER_CTRL_BITS_HWREG_HEIGHTOUT_DATA 16
+#define XV_VSCALER_CTRL_ADDR_HWREG_LINERATE_DATA  0x028
+#define XV_VSCALER_CTRL_BITS_HWREG_LINERATE_DATA  32
+#define XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_BASE 0x400
+#define XV_VSCALER_CTRL_ADDR_HWREG_VFLTCOEFF_HIGH 0x7ff
+#define XV_VSCALER_CTRL_WIDTH_HWREG_VFLTCOEFF     16
+#define XV_VSCALER_CTRL_DEPTH_HWREG_VFLTCOEFF     384

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler_l2.c

@@ -0,0 +1,494 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2015 Xilinx, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * Use of the Software is limited solely to applications:
+ * (a) running on a Xilinx device, or
+ * (b) that interact with a Xilinx device through a bus or interconnect.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the Xilinx shall not be used
+ * in advertising or otherwise to promote the sale, use or other dealings in
+ * this Software without prior written authorization from Xilinx.
+ *
+******************************************************************************/
+/*****************************************************************************/
+/**
+*
+* @file xv_vscaler_l2.c
+*
+* The Vertical Scaler Layer-2 Driver.
+* The functions in this file provides an abstraction from the register peek/poke
+* methodology by implementing most common use-case provided by the sub-core.
+* See xv_vscaler_l2.h for a detailed description of the layer-2 driver
+*
+* <pre>
+* MODIFICATION HISTORY:
+*
+* Ver   Who    Date     Changes
+* ----- ---- -------- -------------------------------------------------------
+* 1.00  rc   05/01/15   Initial Release
+
+* </pre>
+*
+******************************************************************************/
+
+/***************************** Include Files *********************************/
+#include <math.h>
+#include "xv_vscaler_l2.h"
+
+/************************** Constant Definitions *****************************/
+#define PI                     (3.14159265358979)
+#define STEP_PRECISION         (65536)  // 2^16
+#define COEFF_PRECISION        (4096)   // 2^12
+#define COEFF_QUANT            (4096)
+
+/* Mask definitions for Low and high 16 bits in a 32 bit number */
+#define XMASK_LOW_16BITS       (0x0000FFFF)
+#define XMASK_HIGH_16BITS      (0xFFFF0000)
+
+/**************************** Type Definitions *******************************/
+
+/**************************** Local Global *******************************/
+static float SincCoeffs[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS];
+static float TempCoeffs[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS];
+static float WinCoeffs[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS];
+static float NormCoeffs[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS];
+
+/************************** Function Prototypes ******************************/
+static float hamming( int x, int taps);
+static float sinc(float x);
+static void XV_VScalerGetCoeff(XV_vscaler *InstancePtr,
+                               XV_vscaler_l2 *pVscL2Data,
+                               u32 HeightIn,
+                               u32 HeightOut);
+static void XV_VScalerSetCoeff(XV_vscaler *InstancePtr,
+                               XV_vscaler_l2 *pVscL2Data);
+
+/*****************************************************************************/
+/**
+* This function starts the vertical scaler core
+*
+* @param  InstancePtr is a pointer to the core instance to be worked on.
+*
+* @return None
+*
+******************************************************************************/
+void XV_VScalerStart(XV_vscaler *InstancePtr)
+{
+  Xil_AssertVoid(InstancePtr != NULL);
+
+  XV_vscaler_EnableAutoRestart(InstancePtr);
+  XV_vscaler_Start(InstancePtr);
+}
+
+/*****************************************************************************/
+/**
+* This function stops the vertical scaler core
+*
+* @param  InstancePtr is a pointer to the core instance to be worked on.
+*
+* @return None
+*
+******************************************************************************/
+void XV_VScalerStop(XV_vscaler *InstancePtr)
+{
+  Xil_AssertVoid(InstancePtr != NULL);
+
+  XV_vscaler_DisableAutoRestart(InstancePtr);
+}
+
+/*****************************************************************************/
+/**
+* This function applies the hamming filter on specified pixel position
+*
+* @param  x is the pixel coordinate in horizontal direction
+* @param  taps is the number of taps available to the scaler
+*
+* @return hamming filter result
+*
+******************************************************************************/
+static float hamming( int x, int taps)
+{
+    //0.54 + 0.46 * cos(pi * x / filter_size); 0.54 - 0.46 * cos(2*pi * x / filter_size)
+    return (float) (0.54 + (0.46*cos((PI*x)/(taps+1))));
+}
+
+/*****************************************************************************/
+/**
+* This function applies the SIN function to specified pixel position
+*
+* @param  x is the pixel coordinate in horizontal direction
+*
+* @return Sine function result
+*
+******************************************************************************/
+static float sinc(float x)
+{
+    if (x==0)
+       return 1;
+
+    return (float) sin(x*PI)/(float)(x*PI);
+}
+
+/*****************************************************************************/
+/**
+* This function loads user defined filter coefficients in the scaler coefficient
+* storage
+*
+* @param  InstancePtr is a pointer to the core instance to be worked on.
+* @param  pVscL2Data is a pointer to the core instance layer 2 data.
+* @param  VCoeff is the user defined filter coefficients
+******************************************************************************/
+void XV_VscalerLoadUsrCoeffients(XV_vscaler *InstancePtr,
+                                 XV_vscaler_l2 *pVscL2Data,
+                                 const short VCoeff[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS])
+{
+  int i,j,k, pad, offset;
+  int num_phases = XV_VSCALER_MAX_V_PHASES;
+  int num_taps   = pVscL2Data->EffectiveTaps;
+
+  /*
+   * Assert validates the input arguments
+   */
+  Xil_AssertVoid(InstancePtr != NULL);
+  Xil_AssertVoid(pVscL2Data != NULL);
+  Xil_AssertVoid((pVscL2Data->EffectiveTaps > 0) &&
+                 (pVscL2Data->EffectiveTaps <= XV_VSCALER_MAX_V_TAPS));
+
+  //determine if coefficient needs padding (effective vs. max taps)
+  pad = XV_VSCALER_MAX_V_TAPS - num_taps;
+  offset = ((pad) ? (pad>>1) : 0);
+
+  //Load User defined coefficients into scaler coefficient table
+  for (i = 0; i < num_phases; i++)
+  {
+    for (k=0,j=offset; j<num_taps; ++j,++k)
+    {
+      pVscL2Data->coeff[i][j] = VCoeff[i][k];
+    }
+  }
+
+  if(pad) //effective taps < max_taps
+  {
+    for (i = 0; i < num_phases; i++)
+    {
+      //pad left
+      for (j = 0; j < offset; j++)
+      {
+        pVscL2Data->coeff[i][j] = 0;
+      }
+        //pad right
+      for (j = (num_taps+offset); j < XV_VSCALER_MAX_V_TAPS; j++)
+      {
+        pVscL2Data->coeff[i][j] = 0;
+      }
+    }
+  }
+}
+
+/*****************************************************************************/
+/**
+* This function computes the filter coefficients based on scaling ratio and
+* stores them into the layer 2 data storage
+*
+* @param  InstancePtr is a pointer to the core instance to be worked on.
+* @param  pVscL2Data is a pointer to the core instance layer 2 data.
+* @param  HeightIn is the input frame height
+* @param  HeightOut is the scaled frame height
+*
+* @return None
+*
+******************************************************************************/
+static void XV_VScalerGetCoeff(XV_vscaler    *InstancePtr,
+                               XV_vscaler_l2 *pVscL2Data,
+                               u32            HeightIn,
+                               u32            HeightOut)
+{
+  int num_phases = XV_VSCALER_MAX_V_PHASES;
+  int num_taps   = pVscL2Data->EffectiveTaps;
+  int center_tap = num_taps/2;
+  int i,j, pad, offset;
+  float x, fc;
+  float sum[XV_VSCALER_MAX_V_PHASES];
+  float cos_win[XV_VSCALER_MAX_V_TAPS];
+
+  /*
+   * Assert validates the input arguments
+   */
+  Xil_AssertVoid((pVscL2Data->EffectiveTaps > 0) &&
+                 (pVscL2Data->EffectiveTaps <= XV_VSCALER_MAX_V_TAPS));
+
+  if(HeightIn < HeightOut)
+  {
+    fc = (float)HeightIn/(float)HeightOut;
+  }
+  else
+  {
+    fc = (float)HeightOut/(float)HeightIn;
+  }
+
+  //determine if coefficient needs padding (effective vs. max taps)
+  pad = XV_VSCALER_MAX_V_TAPS - num_taps;
+  offset = ((pad) ? (pad>>1) : 0);
+
+  for(i=0; i<num_phases; ++i)
+  {
+    for(j=0; j<num_taps; ++j)
+    {
+      x = ((float) (j - center_tap)) + (((float)i)/(float)num_phases);
+      TempCoeffs[i][j] = x;
+      SincCoeffs[i][j] = sinc(fc*x);
+    }
+  }
+
+  switch(pVscL2Data->FilterSel)
+  {
+    case XV_VFILT_LANCZOS:
+      //Window is a sinc function instead of cosine function
+      // if using lanczos2 or lanczos3 kernel
+      // lanczos(x) = sinc(x) * sinc(x / filter_size);
+
+      for (i = 0; i < num_phases; i++)
+      {
+          for (j = 0; j < num_taps; j++)
+          {
+              x = TempCoeffs[i][j];
+              WinCoeffs[i][j] = SincCoeffs[i][j] * sinc((fc*x)/num_taps);
+          }
+      }
+      break;
+
+    case XV_VFILT_WINDOWED_SINC:
+      for (j = 1; j <= num_taps; j++)
+      {
+        cos_win[j-1] = hamming(j, num_taps);
+      }
+
+      for (i = 0; i < num_phases; i++)
+      {
+          for (j = 0; j < num_taps; j++)
+          {
+              WinCoeffs[i][j] = SincCoeffs[i][j] * cos_win[j];
+          }
+      }
+      break;
+  }
+
+  // normalize to unity and quantize
+  for (i = 0; i < num_phases; i++)
+  {
+    sum[i] = 0;
+    for (j = 0; j < num_taps; j++)
+    {
+      sum[i] += WinCoeffs[i][j];
+    }
+  }
+
+  for (i = 0; i < num_phases; i++)
+  {
+    for (j = offset; j < num_taps; j++)
+    {
+      NormCoeffs[i][j] = WinCoeffs[i][j]/sum[i];
+      pVscL2Data->coeff[i][j] = (short) ((NormCoeffs[i][j] * COEFF_QUANT) + 0.5);
+    }
+  }
+
+  if(pad) //effective taps < max_taps
+  {
+    for (i = 0; i < num_phases; i++)
+    {
+      //pad left
+      for (j = 0; j < offset; j++)
+      {
+        pVscL2Data->coeff[i][j] = 0;
+      }
+        //pad right
+      for (j = (num_taps+offset); j < XV_VSCALER_MAX_V_TAPS; j++)
+      {
+        pVscL2Data->coeff[i][j] = 0;
+      }
+    }
+  }
+}
+
+
+/*****************************************************************************/
+/**
+* This function programs the computed filter coefficients and phase data into
+* core registers
+*
+* @param  InstancePtr is a pointer to the core instance to be worked on.
+* @param  VCoeff is the array that holds computed coefficients
+*
+* @return None
+*
+* @Note  This version of driver does not make use of computed coefficients.
+*        Pre-computed coefficients are stored in a local table which are used
+*        to overwrite any computed coefficients before being programmed into
+*        the core registers. Control flow still computes the coefficients to
+*        maintain the sw latency for driver version which would eventually use
+*        computed coefficients
+******************************************************************************/
+static void XV_VScalerSetCoeff(XV_vscaler *InstancePtr,
+                               XV_vscaler_l2 *pVscL2Data)
+{
+  int num_phases = XV_VSCALER_MAX_V_PHASES;
+  int num_taps   = XV_VSCALER_MAX_V_TAPS/2;
+  int val,i,j;
+  u32 baseAddr;
+
+  baseAddr = XV_vscaler_Get_HwReg_vfltCoeff_BaseAddress(InstancePtr);
+  for (i=0; i < num_phases; i++)
+  {
+    for(j=0; j < num_taps; j++)
+    {
+       val = (pVscL2Data->coeff[i][(j*2)+1] << 16) | (pVscL2Data->coeff[i][j*2] & XMASK_LOW_16BITS);
+       Xil_Out32(baseAddr+((i*num_taps+j)*4), val);
+    }
+  }
+}
+
+/*****************************************************************************/
+/**
+* This function configures the scaler core registers with the specified
+* configuration parameters of the axi stream
+*
+* @param  InstancePtr is a pointer to the core instance to be worked on.
+* @param  WidthIn is the input stream width
+* @param  HeightIn is the input stream height
+* @param  HeightOut is the output stream height
+*
+* @return None
+*
+******************************************************************************/
+void XV_VScalerSetup(XV_vscaler  *InstancePtr,
+                     XV_vscaler_l2 *pVscL2Data,
+                     u32         WidthIn,
+                     u32         HeightIn,
+                     u32         HeightOut)
+{
+  u32 LineRate;
+
+  /*
+   * Assert validates the input arguments
+   */
+  Xil_AssertVoid(InstancePtr != NULL);
+  Xil_AssertVoid(pVscL2Data != NULL);
+
+  if(pVscL2Data->ScalerType == XV_VSCALER_POLYPHASE)
+  {
+    if(!pVscL2Data->UseExtCoeff) //No predefined coefficients
+    {
+      /* Generate coefficients for vertical scaling ratio */
+      XV_VScalerGetCoeff(InstancePtr,
+                         pVscL2Data,
+                         HeightIn,
+                         HeightOut);
+    }
+
+    /* Program coefficients into the IP register bank */
+    XV_VScalerSetCoeff(InstancePtr, pVscL2Data);
+  }
+
+  LineRate = (u32) ((float)((HeightIn * STEP_PRECISION) + (HeightOut/2))/(float)HeightOut);
+
+  XV_vscaler_Set_HwReg_HeightIn(InstancePtr,   HeightIn);
+  XV_vscaler_Set_HwReg_Width(InstancePtr,      WidthIn);
+  XV_vscaler_Set_HwReg_HeightOut(InstancePtr,  HeightOut);
+  XV_vscaler_Set_HwReg_LineRate(InstancePtr,   LineRate);
+}
+
+/*****************************************************************************/
+/**
+*
+* This function prints V Scaler status on the console
+*
+* @param	InstancePtr is the instance pointer to the core instance.
+*
+* @return	None
+*
+******************************************************************************/
+void XV_VScalerDbgReportStatus(XV_vscaler *InstancePtr)
+{
+  XV_vscaler *pVsc = InstancePtr;
+  u32 done, idle, ready, ctrl;
+  u32 widthin, heightin, heightout, linerate;
+  u32 type = 3; //hard-coded to polyphase for now
+  u32 baseAddr, taps, phases;
+  int val,i,j;
+
+  /*
+   * Assert validates the input arguments
+   */
+  Xil_AssertVoid(InstancePtr != NULL);
+
+  xil_printf("\r\n\r\n----->V SCALER IP STATUS<----\r\n");
+  done  = XV_vscaler_IsDone(pVsc);
+  idle  = XV_vscaler_IsIdle(pVsc);
+  ready = XV_vscaler_IsReady(pVsc);
+  ctrl =  XV_vscaler_ReadReg(pVsc->Ctrl_BaseAddress, XV_VSCALER_CTRL_ADDR_AP_CTRL);
+
+
+  heightin  = XV_vscaler_Get_HwReg_HeightIn(pVsc);
+  widthin   = XV_vscaler_Get_HwReg_Width(pVsc);
+  heightout = XV_vscaler_Get_HwReg_HeightOut(pVsc);
+//  type      = XV_vscaler_GetHwreg_scaletype(pVsc);
+  linerate  = XV_vscaler_Get_HwReg_LineRate(pVsc);
+
+  taps   = XV_VSCALER_MAX_V_TAPS/2;
+  phases = XV_VSCALER_MAX_V_PHASES;
+
+  xil_printf("IsDone:  %d\r\n", done);
+  xil_printf("IsIdle:  %d\r\n", idle);
+  xil_printf("IsReady: %d\r\n", ready);
+  xil_printf("Ctrl:    0x%x\r\n\r\n", ctrl);
+
+  xil_printf("Input Width:     %d\r\n",widthin);
+  xil_printf("Input Height:    %d\r\n",heightin);
+  xil_printf("Output Height:   %d\r\n",heightout);
+//  xil_printf("Scaler Type:     %d\r\n",type);
+  xil_printf("Line Rate:       %d\r\n",linerate);
+  xil_printf("Num Phases:      %d\r\n",phases);
+  xil_printf("Num Taps:        %d\r\n",taps*2);
+
+  if(type == 3)
+  {
+    short lsb, msb;
+
+    xil_printf("\r\nCoefficients:");
+
+    baseAddr = XV_vscaler_Get_HwReg_vfltCoeff_BaseAddress(pVsc);
+    for(i = 0; i < phases; i++)
+    {
+      xil_printf("\r\nPhase %2d: ",i);
+      for(j=0; j< taps; j++)
+      {
+        val = Xil_In32(baseAddr+((i*taps+j)*4));
+
+        //coefficients are 12-bits
+        lsb = (short)(val & XMASK_LOW_16BITS);
+        msb = (short)((val & XMASK_HIGH_16BITS)>>16);
+
+        xil_printf("%5d %5d ", lsb, msb);
+      }
+    }
+  }
+}

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler_l2.h

@@ -0,0 +1,181 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2015 Xilinx, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * Use of the Software is limited solely to applications:
+ * (a) running on a Xilinx device, or
+ * (b) that interact with a Xilinx device through a bus or interconnect.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the Xilinx shall not be used
+ * in advertising or otherwise to promote the sale, use or other dealings in
+ * this Software without prior written authorization from Xilinx.
+ *
+******************************************************************************/
+/*****************************************************************************/
+/**
+*
+* @file xv_vscaler_l2.h
+*
+* This header file contains layer 2 API's of the verrtical scaler sub-core
+* driver.The functions contained herein provides a high level implementation of
+* features provided by the IP, abstracting away the register level details from
+* the user
+*
+* <b>V Scaler IP Features </b>
+*
+* This V-Scaler IP supports following features
+* 	- 3 Channel Scaler
+* 	- Scale vertically to 2K lines at 60Hz
+* 	- up to 16bits color depth
+*	- 1, 2 or 4 pixel per clock processing
+*
+* <b>Dependency</b>
+*
+* This driver makes use of the video enumerations and data types defined in the
+* Xilinx Video Common Driver (video_common_vX.x) and as such the common driver
+* must be included as dependency to compile this driver
+
+* <b>Initialization & Configuration</b>
+*
+* The device driver enables higher layer software (e.g., an application) to
+* communicate to the vscaler core.
+*
+* Before using the layer-2 API's user must initialize the core by calling
+* Layer-1 API XV_vscaler_Initialize(). This function will look for a
+* configuration structure for the device and initialize it to defined HW
+* settings. After initialization Layer-2 API's can be used to configure
+* the core. It is recommended user always make use of Layer-2 API to
+* interact with this core.
+* Advanced users always have the capability to directly interact with the IP
+* core using Layer-1 API's that perform low level register peek/poke.
+*
+* <b> Interrupts </b>
+*
+* This driver does not have any interrupts
+*
+* <b> Virtual Memory </b>
+*
+* This driver supports Virtual Memory. The RTOS is responsible for calculating
+* the correct device base address in Virtual Memory space.
+*
+* <b> Threads </b>
+*
+* This driver is not thread safe. Any needs for threads or thread mutual
+* exclusion must be satisfied by the layer above this driver.
+*
+* <b>Limitations</b>
+*
+* Current implementation of "computed coefficients" is non-entrant. If multiple
+* instances of the core are used in the design, user application has to make sure
+* that scale configuration is an atomic operation and cannot be interrupted in
+* middle to context switch to a different instance of the core
+* However fixed coefficient version of the code (default) is safe to be used with
+* multiple instances of the core.
+*
+* <pre>
+* MODIFICATION HISTORY:
+*
+* Ver   Who    Date     Changes
+* ----- ---- -------- -------------------------------------------------------
+* 1.00  rc   05/01/15   Initial Release
+
+* </pre>
+*
+******************************************************************************/
+#ifndef XV_VSCALER_L2_H 	 /* prevent circular inclusions */
+#define XV_VSCALER_L2_H		 /* by using protection macros  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "xvidc.h"
+#include "xv_vscaler.h"
+
+/************************** Constant Definitions *****************************/
+ /** @name Hw Configuration
+  * @{
+  * The following constants define the scaler HW configuration
+  * TODO:
+  * Below defined Parameters are static configuration of H Scaler IP
+  * The tool needs to export these parameters to SDK and the driver will
+  * be populated with these option settings. i.e. these settings could be
+  * accessible via instance pointer
+  *
+  */
+ #define XV_VSCALER_MAX_V_TAPS           (6)
+ #define XV_VSCALER_MAX_V_PHASES         (64)
+
+/**************************** Type Definitions *******************************/
+/**
+ * This typedef contains the Scaler Type
+ */
+typedef enum
+{
+  XV_VSCALER_BILINEAR = 0,
+  XV_VSCALER_BICUBIC,
+  XV_VSCALER_POLYPHASE
+}XV_VSCALER_TYPE;
+
+/**
+ * This typedef contains the type of filters available for scaling operation
+ */
+typedef enum
+{
+  XV_VFILT_LANCZOS = 0,
+  XV_VFILT_WINDOWED_SINC
+}XV_VFILTER_ID;
+
+
+/**
+ * V Scaler Layer 2 data. The user is required to allocate a variable
+ * of this type for every V Scaler device in the system. A pointer to a
+ * variable of this type is then passed to the driver API functions.
+ */
+typedef struct
+{
+  u8 EffectiveTaps;
+  u8 UseExtCoeff;
+  XV_VFILTER_ID FilterSel;
+  XV_VSCALER_TYPE ScalerType;
+  u8 Gain;
+  short coeff[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS];
+}XV_vscaler_l2;
+
+/************************** Function Prototypes ******************************/
+void XV_VScalerStart(XV_vscaler *InstancePtr);
+void XV_VScalerStop(XV_vscaler *InstancePtr);
+void XV_VscalerLoadUsrCoeffients(XV_vscaler *InstancePtr,
+                                 XV_vscaler_l2 *pVscL2Data,
+                                 const short VCoeff[XV_VSCALER_MAX_V_PHASES][XV_VSCALER_MAX_V_TAPS]);
+void XV_VScalerSetup(XV_vscaler *InstancePtr,
+                     XV_vscaler_l2 *pVscL2Data,
+                     u32 WidthIn,
+                     u32 HeightIn,
+                     u32 HeightOut);
+
+void XV_VScalerDbgReportStatus(XV_vscaler *InstancePtr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler_linux.c

@@ -0,0 +1,150 @@
+// ==============================================================
+// File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+// Version: 2015.1
+// Copyright (C) 2015 Xilinx Inc. All rights reserved.
+//
+// ==============================================================
+
+#ifdef __linux__
+
+/***************************** Include Files *********************************/
+#include "xv_vscaler.h"
+
+/***************** Macros (Inline Functions) Definitions *********************/
+#define MAX_UIO_PATH_SIZE       256
+#define MAX_UIO_NAME_SIZE       64
+#define MAX_UIO_MAPS            5
+#define UIO_INVALID_ADDR        0
+
+/**************************** Type Definitions ******************************/
+typedef struct {
+    u32 addr;
+    u32 size;
+} XV_vscaler_uio_map;
+
+typedef struct {
+    int  uio_fd;
+    int  uio_num;
+    char name[ MAX_UIO_NAME_SIZE ];
+    char version[ MAX_UIO_NAME_SIZE ];
+    XV_vscaler_uio_map maps[ MAX_UIO_MAPS ];
+} XV_vscaler_uio_info;
+
+/***************** Variable Definitions **************************************/
+static XV_vscaler_uio_info uio_info;
+
+/************************** Function Implementation *************************/
+static int line_from_file(char* filename, char* linebuf) {
+    char* s;
+    int i;
+    FILE* fp = fopen(filename, "r");
+    if (!fp) return -1;
+    s = fgets(linebuf, MAX_UIO_NAME_SIZE, fp);
+    fclose(fp);
+    if (!s) return -2;
+    for (i=0; (*s)&&(i<MAX_UIO_NAME_SIZE); i++) {
+        if (*s == '\n') *s = 0;
+        s++;
+    }
+    return 0;
+}
+
+static int uio_info_read_name(XV_vscaler_uio_info* info) {
+    char file[ MAX_UIO_PATH_SIZE ];
+    sprintf(file, "/sys/class/uio/uio%d/name", info->uio_num);
+    return line_from_file(file, info->name);
+}
+
+static int uio_info_read_version(XV_vscaler_uio_info* info) {
+    char file[ MAX_UIO_PATH_SIZE ];
+    sprintf(file, "/sys/class/uio/uio%d/version", info->uio_num);
+    return line_from_file(file, info->version);
+}
+
+static int uio_info_read_map_addr(XV_vscaler_uio_info* info, int n) {
+    int ret;
+    char file[ MAX_UIO_PATH_SIZE ];
+    info->maps[n].addr = UIO_INVALID_ADDR;
+    sprintf(file, "/sys/class/uio/uio%d/maps/map%d/addr", info->uio_num, n);
+    FILE* fp = fopen(file, "r");
+    if (!fp) return -1;
+    ret = fscanf(fp, "0x%x", &info->maps[n].addr);
+    fclose(fp);
+    if (ret < 0) return -2;
+    return 0;
+}
+
+static int uio_info_read_map_size(XV_vscaler_uio_info* info, int n) {
+    int ret;
+    char file[ MAX_UIO_PATH_SIZE ];
+    sprintf(file, "/sys/class/uio/uio%d/maps/map%d/size", info->uio_num, n);
+    FILE* fp = fopen(file, "r");
+    if (!fp) return -1;
+    ret = fscanf(fp, "0x%x", &info->maps[n].size);
+    fclose(fp);
+    if (ret < 0) return -2;
+    return 0;
+}
+
+int XV_vscaler_Initialize(XV_vscaler *InstancePtr, const char* InstanceName) {
+	XV_vscaler_uio_info *InfoPtr = &uio_info;
+	struct dirent **namelist;
+    int i, n;
+    char* s;
+    char file[ MAX_UIO_PATH_SIZE ];
+    char name[ MAX_UIO_NAME_SIZE ];
+    int flag = 0;
+
+    assert(InstancePtr != NULL);
+
+    n = scandir("/sys/class/uio", &namelist, 0, alphasort);
+    if (n < 0)  return XST_DEVICE_NOT_FOUND;
+    for (i = 0;  i < n; i++) {
+	strcpy(file, "/sys/class/uio/");
+	strcat(file, namelist[i]->d_name);
+	strcat(file, "/name");
+        if ((line_from_file(file, name) == 0) && (strcmp(name, InstanceName) == 0)) {
+            flag = 1;
+            s = namelist[i]->d_name;
+            s += 3; // "uio"
+            InfoPtr->uio_num = atoi(s);
+            break;
+        }
+    }
+    if (flag == 0)  return XST_DEVICE_NOT_FOUND;
+
+    uio_info_read_name(InfoPtr);
+    uio_info_read_version(InfoPtr);
+    for (n = 0; n < MAX_UIO_MAPS; ++n) {
+        uio_info_read_map_addr(InfoPtr, n);
+        uio_info_read_map_size(InfoPtr, n);
+    }
+
+    sprintf(file, "/dev/uio%d", InfoPtr->uio_num);
+    if ((InfoPtr->uio_fd = open(file, O_RDWR)) < 0) {
+        return XST_OPEN_DEVICE_FAILED;
+    }
+
+    // NOTE: slave interface 'Ctrl' should be mapped to uioX/map0
+    InstancePtr->Ctrl_BaseAddress = (u32)mmap(NULL, InfoPtr->maps[0].size, PROT_READ|PROT_WRITE, MAP_SHARED, InfoPtr->uio_fd, 0 * getpagesize());
+    assert(InstancePtr->Ctrl_BaseAddress);
+
+    InstancePtr->IsReady = XIL_COMPONENT_IS_READY;
+
+    return XST_SUCCESS;
+}
+
+int XV_vscaler_Release(XV_vscaler *InstancePtr) {
+	XV_vscaler_uio_info *InfoPtr = &uio_info;
+
+    assert(InstancePtr != NULL);
+    assert(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
+
+    munmap((void*)InstancePtr->Ctrl_BaseAddress, InfoPtr->maps[0].size);
+
+    close(InfoPtr->uio_fd);
+
+    return XST_SUCCESS;
+}
+
+#endif

XilinxProcessorIPLib/drivers/v_vscaler/src/xv_vscaler_sinit.c

@@ -0,0 +1,45 @@
+// ==============================================================
+// File generated by Vivado(TM) HLS - High-Level Synthesis from C, C++ and SystemC
+// Version: 2015.1
+// Copyright (C) 2015 Xilinx Inc. All rights reserved.
+//
+// ==============================================================
+
+#ifndef __linux__
+
+#include "xstatus.h"
+#include "xparameters.h"
+#include "xv_vscaler.h"
+
+extern XV_vscaler_Config XV_vscaler_ConfigTable[];
+
+XV_vscaler_Config *XV_vscaler_LookupConfig(u16 DeviceId) {
+	XV_vscaler_Config *ConfigPtr = NULL;
+
+	int Index;
+
+	for (Index = 0; Index < XPAR_XV_VSCALER_NUM_INSTANCES; Index++) {
+		if (XV_vscaler_ConfigTable[Index].DeviceId == DeviceId) {
+			ConfigPtr = &XV_vscaler_ConfigTable[Index];
+			break;
+		}
+	}
+
+	return ConfigPtr;
+}
+
+int XV_vscaler_Initialize(XV_vscaler *InstancePtr, u16 DeviceId) {
+	XV_vscaler_Config *ConfigPtr;
+
+	Xil_AssertNonvoid(InstancePtr != NULL);
+
+	ConfigPtr = XV_vscaler_LookupConfig(DeviceId);
+	if (ConfigPtr == NULL) {
+		InstancePtr->IsReady = 0;
+		return (XST_DEVICE_NOT_FOUND);
+	}
+
+	return XV_vscaler_CfgInitialize(InstancePtr, ConfigPtr);
+}
+
+#endif