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/************************************************************************************
* arch/mips/src/pic32mx/pic32mx-cm.h
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_MIPS_SRC_PIC32MX_PIC32MX_CM_H
#define __ARCH_MIPS_SRC_PIC32MX_PIC32MX_CM_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include "pic32mx-memorymap.h"
#if CHIP_NCM > 0
/************************************************************************************
* Pre-Processor Definitions
************************************************************************************/
/* Register Offsets *****************************************************************/
#define PIC32MX_CM_CON_OFFSET 0x0000 /* Comparator control register */
#define PIC32MX_CM_CONCLR_OFFSET 0x0004 /* Comparator control clear register */
#define PIC32MX_CM_CONSET_OFFSET 0x0008 /* Comparator control set register */
#define PIC32MX_CM_CONINV_OFFSET 0x000c /* Comparator control invert register */
#define PIC32MX_CM_STAT_OFFSET 0x0060 /* Comparator status register */
#define PIC32MX_CM_STATCLR_OFFSET 0x0064 /* Comparator status clear register */
#define PIC32MX_CM_STATSET_OFFSET 0x0068 /* Comparator status set register */
#define PIC32MX_CM_STATINV_OFFSET 0x006c /* Comparator status invert register */
/* Register Addresses ***************************************************************/
#define PIC32MX_CM1_CON (PIC32MX_CM1_K1BASE+PIC32MX_CM_CON_OFFSET)
#define PIC32MX_CM1_CONCLR (PIC32MX_CM1_K1BASE+PIC32MX_CM_CONCLR_OFFSET)
#define PIC32MX_CM1_CONSET (PIC32MX_CM1_K1BASE+PIC32MX_CM_CONSET_OFFSET)
#define PIC32MX_CM1_CONINV (PIC32MX_CM1_K1BASE+PIC32MX_CM_CONINV_OFFSET)
#if CHIP_NCM > 0
# define PIC32MX_CM2_CON (PIC32MX_CM2_K1BASE+PIC32MX_CM_CON_OFFSET)
# define PIC32MX_CM2_CONCLR (PIC32MX_CM2_K1BASE+PIC32MX_CM_CONCLR_OFFSET)
# define PIC32MX_CM2_CONSET (PIC32MX_CM2_K1BASE+PIC32MX_CM_CONSET_OFFSET)
# define PIC32MX_CM2_CONINV (PIC32MX_CM2_K1BASE+PIC32MX_CM_CONINV_OFFSET)
#endif
#define PIC32MX_CM_STAT (PIC32MX_CM_K1BASE+PIC32MX_CM_STAT_OFFSET)
#define PIC32MX_CM_STATCLR (PIC32MX_CM1_K1BASE+PIC32MX_CM_STATCLR_OFFSET)
#define PIC32MX_CM_STATSET (PIC32MX_CM1_K1BASE+PIC32MX_CM_STATSET_OFFSET)
#define PIC32MX_CM_STATINV (PIC32MX_CM1_K1BASE+PIC32MX_CM_STATINV_OFFSET)
/* Register Bit-Field Definitions ***************************************************/
/* Comparator control register */
#define CM_CON_CCH_SHIFT (0) /* Bits 0-1: Comparator negative input select */
#define CM_CON_CCH_MASK (3 << CM_CON_CCH_SHIFT)
# define CM_CON_CCH_CXINM (0 << CM_CON_CCH_SHIFT) /* Inverting input connected to CxIN- */
# define CM_CON_CCH_CXINP (1 << CM_CON_CCH_SHIFT) /* Inverting input connected to CxIN+ */
# define CM_CON_CCH_CYINP (2 << CM_CON_CCH_SHIFT) /* Inverting input connected to CyIN+ */
# define CM_CON_CCH_IVREF (3 << CM_CON_CCH_SHIFT) /* Inverting input connected to IVREF */
#define CM_CON_CREF (1 << 4) /* Bit 4: Comparator positive input configure */
#define CM_CON_EVPOL_SHIFT (6) /* Bits 6-7: Interrupt event polarity select */
#define CM_CON_EVPOL_MASK (3 << CM_CON_EVPOL_SHIFT)
# define CM_CON_EVPOL_DISABLED (0 << CM_CON_EVPOL_SHIFT) /* Interrupt disabled */
# define CM_CON_EVPOL_RISING (1 << CM_CON_EVPOL_SHIFT) /* Interrupt on low-to-high transition */
# define CM_CON_EVPOL_FALLING (2 << CM_CON_EVPOL_SHIFT) /* Interrupt on high-to-low transition */
# define CM_CON_EVPOL_BOTH (3 << CM_CON_EVPOL_SHIFT) /* Interrupt on a both transitions */
#define CM_CON_COUT (1 << 8) /* Bit 8: Comparator output */
#define CM_CON_CPOL (1 << 13) /* Bit 13: Comparator output inversion */
#define CM_CON_COE (1 << 14) /* Bit 14: Comparator output enable */
#define CM_CON_ON (1 << 15) /* Bit 15: Comparator ON */
/* Comparator status register */
#define CM_STAT_C1OUT (1 << 0) /* Bit 0: Comparator 1 output */
#define CM_STAT_C2OUT (1 << 1) /* Bit 1: Comparator 2 output */
#define CM_STAT_SIDL (1 << 13) /* Bit 13: Stop in idle control */
#define CM_STAT_FRZ (1 << 14) /* Bit 14: Freeze control */
/************************************************************************************
* Public Types
************************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Inline Functions
************************************************************************************/
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* CHIP_NCM > 0 */
#endif /* __ARCH_MIPS_SRC_PIC32MX_PIC32MX_CM_H */
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