| /****************************************************************************** |
| * |
| * Copyright (C) 2005 - 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 |
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| * 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 |
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| * this Software without prior written authorization from Xilinx. |
| * |
| ******************************************************************************/ |
| /****************************************************************************/ |
| /** |
| * |
| * @file xuartlite_sinit.c |
| * @addtogroup uartlite_v3_1 |
| * @{ |
| * |
| * The implementation of the XUartLite component's static initialzation |
| * functionality. |
| * |
| * <pre> |
| * MODIFICATION HISTORY: |
| * |
| * Ver Who Date Changes |
| * ----- ---- -------- ----------------------------------------------- |
| * 1.01a jvb 10/13/05 First release |
| * 2.00a ktn 10/20/09 Updated to use HAL Processor APIs. |
| * </pre> |
| * |
| *****************************************************************************/ |
| |
| /***************************** Include Files ********************************/ |
| |
| #include "xstatus.h" |
| #include "xparameters.h" |
| #include "xuartlite_i.h" |
| |
| /************************** Constant Definitions ****************************/ |
| |
| |
| /**************************** Type Definitions ******************************/ |
| |
| |
| /***************** Macros (Inline Functions) Definitions ********************/ |
| |
| |
| /************************** Variable Definitions ****************************/ |
| |
| |
| /************************** Function Prototypes *****************************/ |
| |
| /**************************************************************************** |
| * |
| * Looks up the device configuration based on the unique device ID. The table |
| * UartliteConfigTable contains the configuration info for each device in the |
| * system. |
| * |
| * @param DeviceId is the unique device ID to match on. |
| * |
| * @return A pointer to the configuration data for the device, or |
| * NULL if no match was found. |
| * |
| * @note None. |
| * |
| ******************************************************************************/ |
| XUartLite_Config *XUartLite_LookupConfig(u16 DeviceId) |
| { |
| XUartLite_Config *CfgPtr = NULL; |
| u32 Index; |
| |
| for (Index=0; Index < XPAR_XUARTLITE_NUM_INSTANCES; Index++) { |
| if (XUartLite_ConfigTable[Index].DeviceId == DeviceId) { |
| CfgPtr = &XUartLite_ConfigTable[Index]; |
| break; |
| } |
| } |
| |
| return CfgPtr; |
| } |
| |
| /****************************************************************************/ |
| /** |
| * |
| * Initialize a XUartLite instance. The receive and transmit FIFOs of the |
| * UART are not flushed, so the user may want to flush them. The hardware |
| * device does not have any way to disable the receiver such that any valid |
| * data may be present in the receive FIFO. This function disables the UART |
| * interrupt. The baudrate and format of the data are fixed in the hardware |
| * at hardware build time. |
| * |
| * @param InstancePtr is a pointer to the XUartLite instance. |
| * @param DeviceId is the unique id of the device controlled by this |
| * XUartLite instance. Passing in a device id associates the |
| * generic XUartLite instance to a specific device, as chosen by |
| * the caller or application developer. |
| * |
| * @return |
| * - XST_SUCCESS if everything starts up as expected. |
| * - XST_DEVICE_NOT_FOUND if the device is not found in the |
| * configuration table. |
| * |
| * @note None. |
| * |
| *****************************************************************************/ |
| int XUartLite_Initialize(XUartLite *InstancePtr, u16 DeviceId) |
| { |
| XUartLite_Config *ConfigPtr; |
| |
| /* |
| * Assert validates the input arguments |
| */ |
| Xil_AssertNonvoid(InstancePtr != NULL); |
| |
| /* |
| * Lookup the device configuration in the configuration table. Use this |
| * configuration info when initializing this component. |
| */ |
| ConfigPtr = XUartLite_LookupConfig(DeviceId); |
| |
| if (ConfigPtr == (XUartLite_Config *)NULL) { |
| return XST_DEVICE_NOT_FOUND; |
| } |
| return XUartLite_CfgInitialize(InstancePtr, ConfigPtr, |
| ConfigPtr->RegBaseAddr); |
| } |
| |
| /** @} */ |