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Diffstat (limited to 'FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/ttcps_v2_0/src/xttcps_options.c')
| -rw-r--r-- | FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/ttcps_v2_0/src/xttcps_options.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/ttcps_v2_0/src/xttcps_options.c b/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/ttcps_v2_0/src/xttcps_options.c new file mode 100644 index 000000000..e83dc7ab0 --- /dev/null +++ b/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo_bsp/ps7_cortexa9_0/libsrc/ttcps_v2_0/src/xttcps_options.c @@ -0,0 +1,242 @@ +/* $Id: xttcps_options.c,v 1.1.2.1 2011/01/20 04:08:59 sadanan Exp $ */ +/****************************************************************************** +* +* (c) Copyright 2010 Xilinx, Inc. All rights reserved. +* +* This file contains confidential and proprietary information of Xilinx, Inc. +* and is protected under U.S. and international copyright and other +* intellectual property laws. +* +* DISCLAIMER +* This disclaimer is not a license and does not grant any rights to the +* materials distributed herewith. Except as otherwise provided in a valid +* license issued to you by Xilinx, and to the maximum extent permitted by +* applicable law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND WITH ALL +* FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS, +* IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF +* MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; +* and (2) Xilinx shall not be liable (whether in contract or tort, including +* negligence, or under any other theory of liability) for any loss or damage +* of any kind or nature related to, arising under or in connection with these +* materials, including for any direct, or any indirect, special, incidental, +* or consequential loss or damage (including loss of data, profits, goodwill, +* or any type of loss or damage suffered as a result of any action brought by +* a third party) even if such damage or loss was reasonably foreseeable or +* Xilinx had been advised of the possibility of the same. +* +* CRITICAL APPLICATIONS +* Xilinx products are not designed or intended to be fail-safe, or for use in +* any application requiring fail-safe performance, such as life-support or +* safety devices or systems, Class III medical devices, nuclear facilities, +* applications related to the deployment of airbags, or any other applications +* that could lead to death, personal injury, or severe property or +* environmental damage (individually and collectively, "Critical +* Applications"). Customer assumes the sole risk and liability of any use of +* Xilinx products in Critical Applications, subject only to applicable laws +* and regulations governing limitations on product liability. +* +* THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS PART OF THIS FILE +* AT ALL TIMES. +* +******************************************************************************/ +/*****************************************************************************/ +/** +* +* @file xttcps_options.c +* +* This file contains functions to get or set option features for the device. +* +* <pre> +* MODIFICATION HISTORY: +* +* Ver Who Date Changes +* ----- ------ -------- --------------------------------------------- +* 1.00a drg/jz 01/21/10 First release +* 1.01a nm 03/05/2012 Removed break statement after return to remove +* compilation warnings. +* </pre> +* +******************************************************************************/ + +/***************************** Include Files *********************************/ + +#include "xttcps.h" + +/************************** Constant Definitions *****************************/ + + +/**************************** Type Definitions *******************************/ + + +/***************** Macros (Inline Functions) Definitions *********************/ + + +/************************** Function Prototypes ******************************/ + + +/************************** Variable Definitions *****************************/ + +/* + * Create the table of options which are processed to get/set the device + * options. These options are table driven to allow easy maintenance and + * expansion of the options. + */ +typedef struct { + u32 Option; + u32 Mask; + u32 Register; +} OptionsMap; + +static OptionsMap TmrCtrOptionsTable[] = { + {XTTCPS_OPTION_EXTERNAL_CLK, XTTCPS_CLK_CNTRL_SRC_MASK, + XTTCPS_CLK_CNTRL_OFFSET}, + {XTTCPS_OPTION_CLK_EDGE_NEG, XTTCPS_CLK_CNTRL_EXT_EDGE_MASK, + XTTCPS_CLK_CNTRL_OFFSET}, + {XTTCPS_OPTION_INTERVAL_MODE, XTTCPS_CNT_CNTRL_INT_MASK, + XTTCPS_CNT_CNTRL_OFFSET}, + {XTTCPS_OPTION_DECREMENT, XTTCPS_CNT_CNTRL_DECR_MASK, + XTTCPS_CNT_CNTRL_OFFSET}, + {XTTCPS_OPTION_MATCH_MODE, XTTCPS_CNT_CNTRL_MATCH_MASK, + XTTCPS_CNT_CNTRL_OFFSET}, + {XTTCPS_OPTION_WAVE_DISABLE, XTTCPS_CNT_CNTRL_EN_WAVE_MASK, + XTTCPS_CNT_CNTRL_OFFSET}, + {XTTCPS_OPTION_WAVE_POLARITY, XTTCPS_CNT_CNTRL_POL_WAVE_MASK, + XTTCPS_CNT_CNTRL_OFFSET}, +}; + +#define XTTCPS_NUM_TMRCTR_OPTIONS (sizeof(TmrCtrOptionsTable) / \ + sizeof(OptionsMap)) + +/*****************************************************************************/ +/** +* +* This function sets the options for the TTC device. +* +* @param InstancePtr is a pointer to the XTtcPs instance. +* @param Options contains the specified options to be set. This is a bit +* mask where a 1 means to turn the option on, and a 0 means to +* turn the option off. One or more bit values may be contained +* in the mask. See the bit definitions named XTTCPS_*_OPTION in +* the file xttcps.h. +* +* @return +* - XST_SUCCESS if options are successfully set. +* - XST_FAILURE if any of the options are unknown. +* +* @note None +* +******************************************************************************/ +int XTtcPs_SetOptions(XTtcPs *InstancePtr, u32 Options) +{ + u32 CountReg; + u32 ClockReg; + unsigned Index; + + Xil_AssertNonvoid(InstancePtr != NULL); + Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY); + + ClockReg = XTtcPs_ReadReg(InstancePtr->Config.BaseAddress, + XTTCPS_CLK_CNTRL_OFFSET); + CountReg = XTtcPs_ReadReg(InstancePtr->Config.BaseAddress, + XTTCPS_CNT_CNTRL_OFFSET); + + /* + * Loop through the options table, turning the option on or off + * depending on whether the bit is set in the incoming options flag. + */ + for (Index = 0; Index < XTTCPS_NUM_TMRCTR_OPTIONS; Index++) { + if (Options & TmrCtrOptionsTable[Index].Option) { + + switch (TmrCtrOptionsTable[Index].Register) { + + case XTTCPS_CLK_CNTRL_OFFSET: + /* Add option */ + ClockReg |= TmrCtrOptionsTable[Index].Mask; + break; + + case XTTCPS_CNT_CNTRL_OFFSET: + /* Add option */ + CountReg |= TmrCtrOptionsTable[Index].Mask; + break; + + default: + return XST_FAILURE; + } + } + else { + switch (TmrCtrOptionsTable[Index].Register) { + + case XTTCPS_CLK_CNTRL_OFFSET: + /* Remove option*/ + ClockReg &= ~TmrCtrOptionsTable[Index].Mask; + break; + + case XTTCPS_CNT_CNTRL_OFFSET: + /* Remove option*/ + CountReg &= ~TmrCtrOptionsTable[Index].Mask; + break; + + default: + return XST_FAILURE; + } + } + } + + /* + * Now write the registers. Leave it to the upper layers to restart the + * device. + */ + XTtcPs_WriteReg(InstancePtr->Config.BaseAddress, + XTTCPS_CLK_CNTRL_OFFSET, ClockReg); + XTtcPs_WriteReg(InstancePtr->Config.BaseAddress, + XTTCPS_CNT_CNTRL_OFFSET, CountReg); + + return XST_SUCCESS; +} + +/*****************************************************************************/ +/** +* +* This function gets the settings for the options for the TTC device. +* +* @param InstancePtr is a pointer to the XTtcPs instance. +* +* @return +* +* The return u32 contains the specified options that are set. This is a bit +* mask where a '1' means the option is on, and a'0' means the option is off. +* One or more bit values may be contained in the mask. See the bit definitions +* named XTTCPS_*_OPTION in the file xttcps.h. +* +* @note None. +* +******************************************************************************/ +u32 XTtcPs_GetOptions(XTtcPs *InstancePtr) +{ + u32 OptionsFlag = 0; + u32 Register; + unsigned Index; + + Xil_AssertNonvoid(InstancePtr != NULL); + Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY); + + + /* + * Loop through the options table to determine which options are set + */ + for (Index = 0; Index < XTTCPS_NUM_TMRCTR_OPTIONS; Index++) { + /* + * Get the control register to determine which options are + * currently set. + */ + Register = XTtcPs_ReadReg(InstancePtr->Config.BaseAddress, + TmrCtrOptionsTable[Index]. + Register); + + if (Register & TmrCtrOptionsTable[Index].Mask) { + OptionsFlag |= TmrCtrOptionsTable[Index].Option; + } + } + + return OptionsFlag; +} |