diff options
Diffstat (limited to 'FreeRTOS/Demo/MicroBlaze_Kintex7_EthernetLite/BSP/microblaze_0/libsrc/tmrctr_v3_0/src/xtmrctr_options.c')
| -rw-r--r-- | FreeRTOS/Demo/MicroBlaze_Kintex7_EthernetLite/BSP/microblaze_0/libsrc/tmrctr_v3_0/src/xtmrctr_options.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/MicroBlaze_Kintex7_EthernetLite/BSP/microblaze_0/libsrc/tmrctr_v3_0/src/xtmrctr_options.c b/FreeRTOS/Demo/MicroBlaze_Kintex7_EthernetLite/BSP/microblaze_0/libsrc/tmrctr_v3_0/src/xtmrctr_options.c new file mode 100644 index 000000000..cc20dd007 --- /dev/null +++ b/FreeRTOS/Demo/MicroBlaze_Kintex7_EthernetLite/BSP/microblaze_0/libsrc/tmrctr_v3_0/src/xtmrctr_options.c @@ -0,0 +1,214 @@ +/****************************************************************************** +* +* Copyright (C) 2002 - 2014 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 +* XILINX 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 xtmrctr_options.c +* +* Contains configuration options functions for the XTmrCtr component. +* +* <pre> +* MODIFICATION HISTORY: +* +* Ver Who Date Changes +* ----- ---- -------- ----------------------------------------------- +* 1.00b jhl 02/06/02 First release +* 1.10b mta 03/21/07 Updated to new coding style +* 2.00a ktn 10/30/09 Updated to use HAL API's. _m is removed from all the macro +* definitions. +* 2.04a sdm 07/12/11 Added support for the cascade mode operation. +* </pre> +* +******************************************************************************/ + +/***************************** Include Files *********************************/ + +#include "xtmrctr.h" +#include "xtmrctr_i.h" + +/************************** Constant Definitions *****************************/ + + +/**************************** Type Definitions *******************************/ + + +/***************** Macros (Inline Functions) Definitions *********************/ + + +/************************** Function Prototypes ******************************/ + + +/************************** Variable Definitions *****************************/ + +/* + * The following data type maps an option to a register mask such that getting + * and setting the options may be table driven. + */ +typedef struct { + u32 Option; + u32 Mask; +} Mapping; + +/* + * Create the table which contains options which are to be processed to get/set + * the options. These options are table driven to allow easy maintenance and + * expansion of the options. + */ +static Mapping OptionsTable[] = { + {XTC_CASCADE_MODE_OPTION, XTC_CSR_CASC_MASK}, + {XTC_ENABLE_ALL_OPTION, XTC_CSR_ENABLE_ALL_MASK}, + {XTC_DOWN_COUNT_OPTION, XTC_CSR_DOWN_COUNT_MASK}, + {XTC_CAPTURE_MODE_OPTION, XTC_CSR_CAPTURE_MODE_MASK | + XTC_CSR_EXT_CAPTURE_MASK}, + {XTC_INT_MODE_OPTION, XTC_CSR_ENABLE_INT_MASK}, + {XTC_AUTO_RELOAD_OPTION, XTC_CSR_AUTO_RELOAD_MASK}, + {XTC_EXT_COMPARE_OPTION, XTC_CSR_EXT_GENERATE_MASK} +}; + +/* Create a constant for the number of entries in the table */ + +#define XTC_NUM_OPTIONS (sizeof(OptionsTable) / sizeof(Mapping)) + +/*****************************************************************************/ +/** +* +* Enables the specified options for the specified timer counter. This function +* sets the options without regard to the current options of the driver. To +* prevent a loss of the current options, the user should call +* XTmrCtr_GetOptions() prior to this function and modify the retrieved options +* to pass into this function to prevent loss of the current options. +* +* @param InstancePtr is a pointer to the XTmrCtr instance. +* @param TmrCtrNumber is the timer counter of the device to operate on. +* Each device may contain multiple timer counters. The timer +* number is a zero based number with a range of +* 0 - (XTC_DEVICE_TIMER_COUNT - 1). +* @param Options contains the desired options to be set or cleared. +* Setting the option to '1' enables the option, clearing the to +* '0' disables the option. The options are bit masks such that +* multiple options may be set or cleared. The options are +* described in xtmrctr.h. +* +* @return None. +* +* @note None. +* +******************************************************************************/ +void XTmrCtr_SetOptions(XTmrCtr * InstancePtr, u8 TmrCtrNumber, u32 Options) +{ + u32 CounterControlReg = 0; + u32 Index; + + Xil_AssertVoid(InstancePtr != NULL); + Xil_AssertVoid(TmrCtrNumber < XTC_DEVICE_TIMER_COUNT); + Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY); + + /* + * Loop through the Options table, turning the enable on or off + * depending on whether the bit is set in the incoming Options flag. + */ + + for (Index = 0; Index < XTC_NUM_OPTIONS; Index++) { + if (Options & OptionsTable[Index].Option) { + + /* + * Turn the option on + */ + CounterControlReg |= OptionsTable[Index].Mask; + } + else { + /* + * Turn the option off + */ + CounterControlReg &= ~OptionsTable[Index].Mask; + } + } + + /* + * Write out the updated value to the actual register + */ + XTmrCtr_WriteReg(InstancePtr->BaseAddress, TmrCtrNumber, + XTC_TCSR_OFFSET, CounterControlReg); +} + +/*****************************************************************************/ +/** +* +* Get the options for the specified timer counter. +* +* @param InstancePtr is a pointer to the XTmrCtr instance. +* @param TmrCtrNumber is the timer counter of the device to operate on +* Each device may contain multiple timer counters. The timer +* number is a zero based number with a range of +* 0 - (XTC_DEVICE_TIMER_COUNT - 1). +* +* @return +* +* The currently set options. An option which is set to a '1' is enabled and +* set to a '0' is disabled. The options are bit masks such that multiple +* options may be set or cleared. The options are described in xtmrctr.h. +* +* @note None. +* +******************************************************************************/ +u32 XTmrCtr_GetOptions(XTmrCtr * InstancePtr, u8 TmrCtrNumber) +{ + + u32 Options = 0; + u32 CounterControlReg; + u32 Index; + + Xil_AssertNonvoid(InstancePtr != NULL); + Xil_AssertNonvoid(TmrCtrNumber < XTC_DEVICE_TIMER_COUNT); + Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY); + + /* + * Read the current contents of the control status register to allow + * the current options to be determined + */ + CounterControlReg = XTmrCtr_ReadReg(InstancePtr->BaseAddress, + TmrCtrNumber, XTC_TCSR_OFFSET); + /* + * Loop through the Options table, turning the enable on or off + * depending on whether the bit is set in the current register settings. + */ + for (Index = 0; Index < XTC_NUM_OPTIONS; Index++) { + if (CounterControlReg & OptionsTable[Index].Mask) { + Options |= OptionsTable[Index].Option; /* turn it on */ + } + else { + Options &= ~OptionsTable[Index].Option; /* turn it off */ + } + } + + return Options; +} |