b6759337df
Provide correct condition for assert function Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xilinx.com> Acked-by: Srikanth Vemula <svemula@xilinx.com>
576 lines
20 KiB
C
Executable file
576 lines
20 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2011 - 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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*
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* @file xadcps.h
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*
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* The XAdcPs driver supports the Xilinx XADC/ADC device.
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*
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* The XADC/ADC device has the following features:
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* - 10-bit, 200-KSPS (kilo samples per second)
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* Analog-to-Digital Converter (ADC)
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* - Monitoring of on-chip supply voltages and temperature
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* - 1 dedicated differential analog-input pair and
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* 16 auxiliary differential analog-input pairs
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* - Automatic alarms based on user defined limits for the on-chip
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* supply voltages and temperature
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* - Automatic Channel Sequencer, programmable averaging, programmable
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* acquisition time for the external inputs, unipolar or differential
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* input selection for the external inputs
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* - Inbuilt Calibration
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* - Optional interrupt request generation
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*
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*
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* The user should refer to the hardware device specification for detailed
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* information about the device.
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*
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* This header file contains the prototypes of driver functions that can
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* be used to access the XADC/ADC device.
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*
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*
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* <b> XADC Channel Sequencer Modes </b>
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*
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* The XADC Channel Sequencer supports the following operating modes:
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*
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* - <b> Default </b>: This is the default mode after power up.
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* In this mode of operation the XADC operates in
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* a sequence mode, monitoring the on chip sensors:
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* Temperature, VCCINT, and VCCAUX.
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* - <b> One pass through sequence </b>: In this mode the XADC
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* converts the channels enabled in the Sequencer Channel Enable
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* registers for a single pass and then stops.
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* - <b> Continuous cycling of sequence </b>: In this mode the XADC
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* converts the channels enabled in the Sequencer Channel Enable
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* registers continuously.
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* - <b> Single channel mode</b>: In this mode the XADC Channel
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* Sequencer is disabled and the XADC operates in a
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* Single Channel Mode.
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* The XADC can operate either in a Continuous or Event
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* driven sampling mode in the single channel mode.
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* - <b> Simultaneous Sampling Mode</b>: In this mode the XADC Channel
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* Sequencer will automatically sequence through eight fixed pairs
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* of auxiliary analog input channels for simulataneous conversion.
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* - <b> Independent ADC mode</b>: In this mode the first ADC (A) is used to
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* is used to implement a fixed monitoring mode similar to the
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* default mode but the alarm fucntions ar eenabled.
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* The second ADC (B) is available to be used with external analog
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* input channels only.
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*
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* Read the XADC spec for more information about the sequencer modes.
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*
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* <b> Initialization and Configuration </b>
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*
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* The device driver enables higher layer software (e.g., an application) to
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* communicate to the XADC/ADC device.
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*
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* XAdcPs_CfgInitialize() API is used to initialize the XADC/ADC
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* device. The user needs to first call the XAdcPs_LookupConfig() API which
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* returns the Configuration structure pointer which is passed as a parameter to
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* the XAdcPs_CfgInitialize() API.
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*
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*
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* <b>Interrupts</b>
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*
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* The XADC/ADC device supports interrupt driven mode and the default
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* operation mode is polling mode.
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*
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* The interrupt mode is available only if hardware is configured to support
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* interrupts.
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*
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* This driver does not provide a Interrupt Service Routine (ISR) for the device.
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* It is the responsibility of the application to provide one if needed. Refer to
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* the interrupt example provided with this driver for details on using the
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* device in interrupt mode.
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*
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*
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* <b> Virtual Memory </b>
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*
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* This driver supports Virtual Memory. The RTOS is responsible for calculating
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* the correct device base address in Virtual Memory space.
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*
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*
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* <b> Threads </b>
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*
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* This driver is not thread safe. Any needs for threads or thread mutual
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* exclusion must be satisfied by the layer above this driver.
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*
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*
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* <b> Asserts </b>
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*
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* Asserts are used within all Xilinx drivers to enforce constraints on argument
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* values. Asserts can be turned off on a system-wide basis by defining, at
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* compile time, the NDEBUG identifier. By default, asserts are turned on and it
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* is recommended that users leave asserts on during development.
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*
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*
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* <b> Building the driver </b>
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*
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* The XAdcPs driver is composed of several source files. This allows the user
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* to build and link only those parts of the driver that are necessary.
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*
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* <b> Limitations of the driver </b>
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*
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* XADC/ADC device can be accessed through the JTAG port and the PLB
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* interface. The driver implementation does not support the simultaneous access
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* of the device by both these interfaces. The user has to care of this situation
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* in the user application code.
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*
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* <br><br>
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*
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* <pre>
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*
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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 ssb 12/22/11 First release based on the XPS/AXI xadc driver
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* 1.01a bss 02/18/13 Modified XAdcPs_SetSeqChEnables,XAdcPs_SetSeqAvgEnables
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* XAdcPs_SetSeqInputMode and XAdcPs_SetSeqAcqTime APIs
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* in xadcps.c to fix CR #693371
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* 1.03a bss 11/01/13 Modified xadcps_hw.h to use correct Register offsets
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* CR#749687
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* 2.1 bss 08/05/14 Added declarations for XAdcPs_SetSequencerEvent,
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* XAdcPs_GetSamplingMode, XAdcPs_SetMuxMode,
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* XAdcPs_SetPowerdownMode and XAdcPs_GetPowerdownMode
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* functions.
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* Modified Assert for XAdcPs_SetSingleChParams in
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* xadcps.c to fix CR #807563.
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*
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* </pre>
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*
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*****************************************************************************/
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#ifndef XADCPS_H /* Prevent circular inclusions */
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#define XADCPS_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 "xadcps_hw.h"
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/************************** Constant Definitions ****************************/
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/**
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* @name Indexes for the different channels.
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* @{
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*/
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#define XADCPS_CH_TEMP 0x0 /**< On Chip Temperature */
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#define XADCPS_CH_VCCINT 0x1 /**< VCCINT */
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#define XADCPS_CH_VCCAUX 0x2 /**< VCCAUX */
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#define XADCPS_CH_VPVN 0x3 /**< VP/VN Dedicated analog inputs */
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#define XADCPS_CH_VREFP 0x4 /**< VREFP */
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#define XADCPS_CH_VREFN 0x5 /**< VREFN */
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#define XADCPS_CH_VBRAM 0x6 /**< On-chip VBRAM Data Reg, 7 series */
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#define XADCPS_CH_SUPPLY_CALIB 0x07 /**< Supply Calib Data Reg */
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#define XADCPS_CH_ADC_CALIB 0x08 /**< ADC Offset Channel Reg */
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#define XADCPS_CH_GAINERR_CALIB 0x09 /**< Gain Error Channel Reg */
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#define XADCPS_CH_VCCPINT 0x0D /**< On-chip PS VCCPINT Channel , Zynq */
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#define XADCPS_CH_VCCPAUX 0x0E /**< On-chip PS VCCPAUX Channel , Zynq */
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#define XADCPS_CH_VCCPDRO 0x0F /**< On-chip PS VCCPDRO Channel , Zynq */
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#define XADCPS_CH_AUX_MIN 16 /**< Channel number for 1st Aux Channel */
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#define XADCPS_CH_AUX_MAX 31 /**< Channel number for Last Aux channel */
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/*@}*/
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/**
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* @name Indexes for reading the Calibration Coefficient Data.
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* @{
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*/
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#define XADCPS_CALIB_SUPPLY_COEFF 0 /**< Supply Offset Calib Coefficient */
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#define XADCPS_CALIB_ADC_COEFF 1 /**< ADC Offset Calib Coefficient */
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#define XADCPS_CALIB_GAIN_ERROR_COEFF 2 /**< Gain Error Calib Coefficient*/
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/*@}*/
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/**
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* @name Indexes for reading the Minimum/Maximum Measurement Data.
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* @{
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*/
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#define XADCPS_MAX_TEMP 0 /**< Maximum Temperature Data */
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#define XADCPS_MAX_VCCINT 1 /**< Maximum VCCINT Data */
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#define XADCPS_MAX_VCCAUX 2 /**< Maximum VCCAUX Data */
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#define XADCPS_MAX_VBRAM 3 /**< Maximum VBRAM Data */
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#define XADCPS_MIN_TEMP 4 /**< Minimum Temperature Data */
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#define XADCPS_MIN_VCCINT 5 /**< Minimum VCCINT Data */
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#define XADCPS_MIN_VCCAUX 6 /**< Minimum VCCAUX Data */
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#define XADCPS_MIN_VBRAM 7 /**< Minimum VBRAM Data */
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#define XADCPS_MAX_VCCPINT 8 /**< Maximum VCCPINT Register , Zynq */
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#define XADCPS_MAX_VCCPAUX 9 /**< Maximum VCCPAUX Register , Zynq */
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#define XADCPS_MAX_VCCPDRO 0xA /**< Maximum VCCPDRO Register , Zynq */
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#define XADCPS_MIN_VCCPINT 0xC /**< Minimum VCCPINT Register , Zynq */
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#define XADCPS_MIN_VCCPAUX 0xD /**< Minimum VCCPAUX Register , Zynq */
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#define XADCPS_MIN_VCCPDRO 0xE /**< Minimum VCCPDRO Register , Zynq */
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/*@}*/
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/**
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* @name Alarm Threshold(Limit) Register (ATR) indexes.
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* @{
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*/
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#define XADCPS_ATR_TEMP_UPPER 0 /**< High user Temperature */
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#define XADCPS_ATR_VCCINT_UPPER 1 /**< VCCINT high voltage limit register */
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#define XADCPS_ATR_VCCAUX_UPPER 2 /**< VCCAUX high voltage limit register */
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#define XADCPS_ATR_OT_UPPER 3 /**< VCCAUX high voltage limit register */
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#define XADCPS_ATR_TEMP_LOWER 4 /**< Upper Over Temperature limit Reg */
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#define XADCPS_ATR_VCCINT_LOWER 5 /**< VCCINT high voltage limit register */
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#define XADCPS_ATR_VCCAUX_LOWER 6 /**< VCCAUX low voltage limit register */
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#define XADCPS_ATR_OT_LOWER 7 /**< Lower Over Temperature limit */
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#define XADCPS_ATR_VBRAM_UPPER_ 8 /**< VRBAM Upper Alarm Reg, 7 Series */
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#define XADCPS_ATR_VCCPINT_UPPER 9 /**< VCCPINT Upper Alarm Reg, Zynq */
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#define XADCPS_ATR_VCCPAUX_UPPER 0xA /**< VCCPAUX Upper Alarm Reg, Zynq */
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#define XADCPS_ATR_VCCPDRO_UPPER 0xB /**< VCCPDRO Upper Alarm Reg, Zynq */
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#define XADCPS_ATR_VBRAM_LOWER 0xC /**< VRBAM Lower Alarm Reg, 7 Series */
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#define XADCPS_ATR_VCCPINT_LOWER 0xD /**< VCCPINT Lower Alarm Reg , Zynq */
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#define XADCPS_ATR_VCCPAUX_LOWER 0xE /**< VCCPAUX Lower Alarm Reg , Zynq */
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#define XADCPS_ATR_VCCPDRO_LOWER 0xF /**< VCCPDRO Lower Alarm Reg , Zynq */
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/*@}*/
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/**
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* @name Averaging to be done for the channels.
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* @{
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*/
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#define XADCPS_AVG_0_SAMPLES 0 /**< No Averaging */
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#define XADCPS_AVG_16_SAMPLES 1 /**< Average 16 samples */
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#define XADCPS_AVG_64_SAMPLES 2 /**< Average 64 samples */
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#define XADCPS_AVG_256_SAMPLES 3 /**< Average 256 samples */
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/*@}*/
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/**
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* @name Channel Sequencer Modes of operation
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* @{
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*/
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#define XADCPS_SEQ_MODE_SAFE 0 /**< Default Safe Mode */
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#define XADCPS_SEQ_MODE_ONEPASS 1 /**< Onepass through Sequencer */
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#define XADCPS_SEQ_MODE_CONTINPASS 2 /**< Continuous Cycling Sequencer */
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#define XADCPS_SEQ_MODE_SINGCHAN 3 /**< Single channel -No Sequencing */
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#define XADCPS_SEQ_MODE_SIMUL_SAMPLING 4 /**< Simultaneous sampling */
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#define XADCPS_SEQ_MODE_INDEPENDENT 8 /**< Independent mode */
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/*@}*/
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/**
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* @name Power Down Modes
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* @{
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*/
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#define XADCPS_PD_MODE_NONE 0 /**< No Power Down */
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#define XADCPS_PD_MODE_ADCB 1 /**< Power Down ADC B */
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#define XADCPS_PD_MODE_XADC 2 /**< Power Down ADC A and ADC B */
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/*@}*/
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/**************************** Type Definitions ******************************/
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/**
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* This typedef contains configuration information for the XADC/ADC
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* 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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} XAdcPs_Config;
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/**
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* The driver's instance data. The user is required to allocate a variable
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* of this type for every XADC/ADC device in the system. A pointer to
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* 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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XAdcPs_Config Config; /**< XAdcPs_Config of current device */
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u32 IsReady; /**< Device is initialized and ready */
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} XAdcPs;
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/***************** Macros (Inline Functions) Definitions ********************/
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/****************************************************************************/
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/**
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*
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* This macro checks if the XADC device is in Event Sampling mode.
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*
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* @param InstancePtr is a pointer to the XAdcPs instance.
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*
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* @return
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* - TRUE if the device is in Event Sampling Mode.
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* - FALSE if the device is in Continuous Sampling Mode.
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*
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* @note C-Style signature:
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* int XAdcPs_IsEventSamplingMode(XAdcPs *InstancePtr);
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*
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*****************************************************************************/
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#define XAdcPs_IsEventSamplingModeSet(InstancePtr) \
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(((XAdcPs_ReadInternalReg(InstancePtr, \
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XADCPS_CFR0_OFFSET) & XADCPS_CFR0_EC_MASK) ? \
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TRUE : FALSE))
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/****************************************************************************/
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/**
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*
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* This macro checks if the XADC device is in External Mux mode.
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*
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* @param InstancePtr is a pointer to the XAdcPs instance.
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*
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* @return
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* - TRUE if the device is in External Mux Mode.
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* - FALSE if the device is NOT in External Mux Mode.
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*
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* @note C-Style signature:
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* int XAdcPs_IsExternalMuxMode(XAdcPs *InstancePtr);
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*
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*****************************************************************************/
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#define XAdcPs_IsExternalMuxModeSet(InstancePtr) \
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(((XAdcPs_ReadInternalReg(InstancePtr, \
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XADCPS_CFR0_OFFSET) & XADCPS_CFR0_MUX_MASK) ? \
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TRUE : FALSE))
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/****************************************************************************/
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/**
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*
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* This macro converts XADC Raw Data to Temperature(centigrades).
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*
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* @param AdcData is the Raw ADC Data from XADC.
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*
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* @return The Temperature in centigrades.
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*
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* @note C-Style signature:
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* float XAdcPs_RawToTemperature(u32 AdcData);
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*
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*****************************************************************************/
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#define XAdcPs_RawToTemperature(AdcData) \
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((((float)(AdcData)/65536.0f)/0.00198421639f ) - 273.15f)
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/****************************************************************************/
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/**
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*
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* This macro converts XADC/ADC Raw Data to Voltage(volts).
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*
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* @param AdcData is the XADC/ADC Raw Data.
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*
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* @return The Voltage in volts.
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*
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* @note C-Style signature:
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* float XAdcPs_RawToVoltage(u32 AdcData);
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*
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*****************************************************************************/
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#define XAdcPs_RawToVoltage(AdcData) \
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((((float)(AdcData))* (3.0f))/65536.0f)
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/****************************************************************************/
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/**
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*
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* This macro converts Temperature in centigrades to XADC/ADC Raw Data.
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*
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* @param Temperature is the Temperature in centigrades to be
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* converted to XADC/ADC Raw Data.
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*
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* @return The XADC/ADC Raw Data.
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*
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* @note C-Style signature:
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* int XAdcPs_TemperatureToRaw(float Temperature);
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*
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*****************************************************************************/
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#define XAdcPs_TemperatureToRaw(Temperature) \
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((int)(((Temperature) + 273.15f)*65536.0f*0.00198421639f))
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/****************************************************************************/
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/**
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*
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* This macro converts Voltage in Volts to XADC/ADC Raw Data.
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*
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* @param Voltage is the Voltage in volts to be converted to
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* XADC/ADC Raw Data.
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*
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* @return The XADC/ADC Raw Data.
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*
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* @note C-Style signature:
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* int XAdcPs_VoltageToRaw(float Voltage);
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*
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*****************************************************************************/
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#define XAdcPs_VoltageToRaw(Voltage) \
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((int)((Voltage)*65536.0f/3.0f))
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/****************************************************************************/
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/**
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*
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* This macro is used for writing to the XADC Registers using the
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* command FIFO.
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*
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* @param InstancePtr is a pointer to the XAdcPs instance.
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*
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* @return None.
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*
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* @note C-Style signature:
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* void XAdcPs_WriteFifo(XAdcPs *InstancePtr, u32 Data);
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*
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*****************************************************************************/
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#define XAdcPs_WriteFifo(InstancePtr, Data) \
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XAdcPs_WriteReg((InstancePtr)->Config.BaseAddress, \
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XADCPS_CMDFIFO_OFFSET, Data);
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/****************************************************************************/
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/**
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*
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* This macro is used for reading from the XADC Registers using the
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* data FIFO.
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*
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* @param InstancePtr is a pointer to the XAdcPs instance.
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*
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* @return Data read from the FIFO
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*
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* @note C-Style signature:
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* u32 XAdcPs_ReadFifo(XAdcPs *InstancePtr);
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*
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*****************************************************************************/
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#define XAdcPs_ReadFifo(InstancePtr) \
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XAdcPs_ReadReg((InstancePtr)->Config.BaseAddress, \
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XADCPS_RDFIFO_OFFSET);
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/************************** Function Prototypes *****************************/
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/**
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* Functions in xadcps_sinit.c
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*/
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XAdcPs_Config *XAdcPs_LookupConfig(u16 DeviceId);
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/**
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* Functions in xadcps.c
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*/
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int XAdcPs_CfgInitialize(XAdcPs *InstancePtr,
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XAdcPs_Config *ConfigPtr,
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u32 EffectiveAddr);
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u32 XAdcPs_GetStatus(XAdcPs *InstancePtr);
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u32 XAdcPs_GetAlarmOutputStatus(XAdcPs *InstancePtr);
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void XAdcPs_StartAdcConversion(XAdcPs *InstancePtr);
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void XAdcPs_Reset(XAdcPs *InstancePtr);
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u16 XAdcPs_GetAdcData(XAdcPs *InstancePtr, u8 Channel);
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u16 XAdcPs_GetCalibCoefficient(XAdcPs *InstancePtr, u8 CoeffType);
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u16 XAdcPs_GetMinMaxMeasurement(XAdcPs *InstancePtr, u8 MeasurementType);
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void XAdcPs_SetAvg(XAdcPs *InstancePtr, u8 Average);
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u8 XAdcPs_GetAvg(XAdcPs *InstancePtr);
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int XAdcPs_SetSingleChParams(XAdcPs *InstancePtr,
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u8 Channel,
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int IncreaseAcqCycles,
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int IsEventMode,
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int IsDifferentialMode);
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void XAdcPs_SetAlarmEnables(XAdcPs *InstancePtr, u16 AlmEnableMask);
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u16 XAdcPs_GetAlarmEnables(XAdcPs *InstancePtr);
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void XAdcPs_SetCalibEnables(XAdcPs *InstancePtr, u16 Calibration);
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u16 XAdcPs_GetCalibEnables(XAdcPs *InstancePtr);
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void XAdcPs_SetSequencerMode(XAdcPs *InstancePtr, u8 SequencerMode);
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u8 XAdcPs_GetSequencerMode(XAdcPs *InstancePtr);
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void XAdcPs_SetAdcClkDivisor(XAdcPs *InstancePtr, u8 Divisor);
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u8 XAdcPs_GetAdcClkDivisor(XAdcPs *InstancePtr);
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int XAdcPs_SetSeqChEnables(XAdcPs *InstancePtr, u32 ChEnableMask);
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u32 XAdcPs_GetSeqChEnables(XAdcPs *InstancePtr);
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int XAdcPs_SetSeqAvgEnables(XAdcPs *InstancePtr, u32 AvgEnableChMask);
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u32 XAdcPs_GetSeqAvgEnables(XAdcPs *InstancePtr);
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int XAdcPs_SetSeqInputMode(XAdcPs *InstancePtr, u32 InputModeChMask);
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u32 XAdcPs_GetSeqInputMode(XAdcPs *InstancePtr);
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int XAdcPs_SetSeqAcqTime(XAdcPs *InstancePtr, u32 AcqCyclesChMask);
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u32 XAdcPs_GetSeqAcqTime(XAdcPs *InstancePtr);
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void XAdcPs_SetAlarmThreshold(XAdcPs *InstancePtr, u8 AlarmThrReg, u16 Value);
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u16 XAdcPs_GetAlarmThreshold(XAdcPs *InstancePtr, u8 AlarmThrReg);
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void XAdcPs_EnableUserOverTemp(XAdcPs *InstancePtr);
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void XAdcPs_DisableUserOverTemp(XAdcPs *InstancePtr);
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void XAdcPs_SetSequencerEvent(XAdcPs *InstancePtr, int IsEventMode);
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int XAdcPs_GetSamplingMode(XAdcPs *InstancePtr);
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void XAdcPs_SetMuxMode(XAdcPs *InstancePtr, int MuxMode, u8 Channel);
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void XAdcPs_SetPowerdownMode(XAdcPs *InstancePtr, u32 Mode);
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u32 XAdcPs_GetPowerdownMode(XAdcPs *InstancePtr);
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/**
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* Functions in xadcps_selftest.c
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*/
|
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int XAdcPs_SelfTest(XAdcPs *InstancePtr);
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/**
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* Functions in xadcps_intr.c
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*/
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void XAdcPs_IntrEnable(XAdcPs *InstancePtr, u32 Mask);
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void XAdcPs_IntrDisable(XAdcPs *InstancePtr, u32 Mask);
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u32 XAdcPs_IntrGetEnabled(XAdcPs *InstancePtr);
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u32 XAdcPs_IntrGetStatus(XAdcPs *InstancePtr);
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void XAdcPs_IntrClear(XAdcPs *InstancePtr, u32 Mask);
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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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