698f4909b7
This patch updates the copy right information for the below drivers can canps spi trafgen srio uartlite uartns550 gpio llfifo emc and xilkernel bsp. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Acked-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
195 lines
7.8 KiB
C
Executable file
195 lines
7.8 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2002 - 2014 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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******************************************************************************/
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/*****************************************************************************/
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/**
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* @file xgpio.h
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*
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* This file contains the software API definition of the Xilinx General Purpose
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* I/O (XGpio) device driver.
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*
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* The Xilinx GPIO controller is a soft IP core designed for Xilinx FPGAs and
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* contains the following general features:
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* - Support for up to 32 I/O discretes for each channel (64 bits total).
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* - Each of the discretes can be configured for input or output.
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* - Configurable support for dual channels and interrupt generation.
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*
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* The driver provides interrupt management functions. Implementation of
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* interrupt handlers is left to the user. Refer to the provided interrupt
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* example in the examples directory for details.
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*
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* This driver is intended to be RTOS and processor independent. Any needs for
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* dynamic memory management, threads or thread mutual exclusion, virtual
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* memory, or cache control must be satisfied by the layer above this driver.
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*
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* <b>Initialization & Configuration</b>
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*
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* The XGpio_Config structure is used by the driver to configure itself. This
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* configuration structure is typically created by the tool-chain based on HW
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* build properties.
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*
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* To support multiple runtime loading and initialization strategies employed
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* by various operating systems, the driver instance can be initialized in one
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* of the following ways:
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*
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* - XGpio_Initialize(InstancePtr, DeviceId) - The driver looks up its own
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* configuration structure created by the tool-chain based on an ID provided
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* by the tool-chain.
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*
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* - XGpio_CfgInitialize(InstancePtr, CfgPtr, EffectiveAddr) - Uses a
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* configuration structure provided by the caller. If running in a system
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* with address translation, the provided virtual memory base address
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* replaces the physical address present in the configuration structure.
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*
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* @note
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*
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* This API utilizes 32 bit I/O to the GPIO registers. With less than 32 bits,
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* the unused bits from registers are read as zero and written as don't cares.
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*
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* <pre>
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ----- ---- -------- -----------------------------------------------
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* 1.00a rmm 03/13/02 First release
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* 2.00a jhl 11/26/03 Added support for dual channels and interrupts
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* 2.01a jvb 12/14/05 I separated dependency on the static config table and
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* xparameters.h from the driver initialization by moving
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* _Initialize and _LookupConfig to _sinit.c. I also added
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* the new _CfgInitialize routine.
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* 2.11a mta 03/21/07 Updated to new coding style, added GetDataDirection
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* 2.12a sv 11/21/07 Updated driver to support access through DCR bus
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* 2.12a sv 06/05/08 Updated driver to fix the XGpio_InterruptDisable function
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* to properly update the Interrupt Enable register
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* 2.13a sdm 08/22/08 Removed support for static interrupt handlers from the MDD
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* file
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* 3.00a sv 11/21/09 Updated to use HAL Processor APIs.
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* Renamed the macros XGpio_mWriteReg to XGpio_WriteReg and
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* XGpio_mReadReg to XGpio_ReadReg. Removed the macros
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* XGpio_mSetDataDirection, XGpio_mGetDataReg and
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* XGpio_mSetDataReg. Users should use XGpio_WriteReg and
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* XGpio_ReadReg to achieve the same functionality.
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* 3.01a bss 04/18/13 Updated driver tcl to generate Canonical params in
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* xparameters.h. CR#698589
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* 4.0 adk 19/12/13 Updated as per the New Tcl API's
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* </pre>
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*****************************************************************************/
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#ifndef XGPIO_H /* prevent circular inclusions */
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#define XGPIO_H /* by using protection macros */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***************************** Include Files ********************************/
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#include "xil_types.h"
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#include "xil_assert.h"
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#include "xstatus.h"
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#include "xgpio_l.h"
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/************************** Constant Definitions ****************************/
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/**************************** Type Definitions ******************************/
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/**
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* This typedef contains configuration information for the device.
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*/
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typedef struct {
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u16 DeviceId; /* Unique ID of device */
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u32 BaseAddress; /* Device base address */
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int InterruptPresent; /* Are interrupts supported in h/w */
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int IsDual; /* Are 2 channels supported in h/w */
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} XGpio_Config;
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/**
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* The XGpio driver instance data. The user is required to allocate a
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* variable of this type for every GPIO device in the system. A pointer
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* to a variable of this type is then passed to the driver API functions.
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*/
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typedef struct {
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u32 BaseAddress; /* Device base address */
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u32 IsReady; /* Device is initialized and ready */
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int InterruptPresent; /* Are interrupts supported in h/w */
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int IsDual; /* Are 2 channels supported in h/w */
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} XGpio;
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/***************** Macros (Inline Functions) Definitions ********************/
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/************************** Function Prototypes *****************************/
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/*
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* Initialization functions in xgpio_sinit.c
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*/
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int XGpio_Initialize(XGpio *InstancePtr, u16 DeviceId);
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XGpio_Config *XGpio_LookupConfig(u16 DeviceId);
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/*
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* API Basic functions implemented in xgpio.c
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*/
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int XGpio_CfgInitialize(XGpio *InstancePtr, XGpio_Config * Config,
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u32 EffectiveAddr);
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void XGpio_SetDataDirection(XGpio *InstancePtr, unsigned Channel,
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u32 DirectionMask);
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u32 XGpio_GetDataDirection(XGpio *InstancePtr, unsigned Channel);
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u32 XGpio_DiscreteRead(XGpio *InstancePtr, unsigned Channel);
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void XGpio_DiscreteWrite(XGpio *InstancePtr, unsigned Channel, u32 Mask);
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/*
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* API Functions implemented in xgpio_extra.c
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*/
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void XGpio_DiscreteSet(XGpio *InstancePtr, unsigned Channel, u32 Mask);
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void XGpio_DiscreteClear(XGpio *InstancePtr, unsigned Channel, u32 Mask);
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/*
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* API Functions implemented in xgpio_selftest.c
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*/
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int XGpio_SelfTest(XGpio *InstancePtr);
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/*
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* API Functions implemented in xgpio_intr.c
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*/
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void XGpio_InterruptGlobalEnable(XGpio *InstancePtr);
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void XGpio_InterruptGlobalDisable(XGpio *InstancePtr);
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void XGpio_InterruptEnable(XGpio *InstancePtr, u32 Mask);
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void XGpio_InterruptDisable(XGpio *InstancePtr, u32 Mask);
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void XGpio_InterruptClear(XGpio *InstancePtr, u32 Mask);
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u32 XGpio_InterruptGetEnabled(XGpio *InstancePtr);
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u32 XGpio_InterruptGetStatus(XGpio *InstancePtr);
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#ifdef __cplusplus
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}
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#endif
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#endif /* end of protection macro */
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