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contiki/lib/include/tmr.h
Jim Paris 9b6f648efb Add macro to help compute TMR.ENBL values (useful when using #defined 
values to represent timers)
2010-09-25 17:16:12 -04:00

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/*
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
* to the MC1322x project (http://mc1322x.devl.org)
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of libmc1322x: see http://mc1322x.devl.org
* for details.
*
* $Id$
*/
#ifndef TMR_H
#define TMR_H
#include "utils.h"
/* Timer registers are all 16-bit wide with 16-bit access only */
#define TMR_OFFSET (0x20)
#define TMR_BASE (0x80007000)
#define TMR0_BASE (TMR_BASE)
#define TMR1_BASE (TMR_BASE + TMR_OFFSET*1)
#define TMR2_BASE (TMR_BASE + TMR_OFFSET*2)
#define TMR3_BASE (TMR_BASE + TMR_OFFSET*3)
/* Structure-based register definitions */
/* Example use:
TMR2.CTRL = 0x1234;
TMR2.CTRLbits = (struct TMR_CTRL) {
.DIR = 1,
.OUTPUT_MODE = 2,
};
TMR2.CTRLbits.PRIMARY_CNT_SOURCE = 3;
*/
struct TMR_struct {
uint16_t COMP1;
uint16_t COMP2;
uint16_t CAPT;
uint16_t LOAD;
uint16_t HOLD;
uint16_t CNTR;
union {
uint16_t CTRL;
struct TMR_CTRL {
uint16_t OUTPUT_MODE:3;
uint16_t CO_INIT:1;
uint16_t DIR:1;
uint16_t LENGTH:1;
uint16_t ONCE:1;
uint16_t SECONDARY_CNT_SOURCE:2;
uint16_t PRIMARY_CNT_SOURCE:4;
uint16_t COUNT_MODE:3;
} CTRLbits;
};
union {
uint16_t SCTRL;
struct TMR_SCTRL {
uint16_t OEN:1;
uint16_t OPS:1;
uint16_t FORCE:1;
uint16_t VAL:1;
uint16_t EEOF:1;
uint16_t MSTR:1;
uint16_t CAPTURE_MODE:2;
uint16_t INPUT:1;
uint16_t IPS:1;
uint16_t IEFIE:1;
uint16_t IEF:1;
uint16_t TOFIE:1;
uint16_t TOF:1;
uint16_t TCFIE:1;
uint16_t TCF:1;
} SCTRLbits;
};
uint16_t CMPLD1;
uint16_t CMPLD2;
union {
uint16_t CSCTRL;
struct TMR_CSCTRL {
uint16_t CL1:2;
uint16_t CL2:2;
uint16_t TCF1:1;
uint16_t TCF2:1;
uint16_t TCF1EN:1;
uint16_t TCF2EN:1;
uint16_t :5;
uint16_t FILT_EN:1;
uint16_t DBG_EN:2;
} CSCTRLbits;
};
uint16_t reserved[4];
union {
uint16_t ENBL;
struct TMR_ENBL {
union {
struct {
uint16_t ENBL:4;
};
struct {
uint16_t ENBL3:1;
uint16_t ENBL2:1;
uint16_t ENBL1:1;
uint16_t ENBL0:1;
};
};
uint16_t :12;
} ENBLbits;
};
};
static volatile struct TMR_struct * const _TMR0 = (void *) (TMR0_BASE);
static volatile struct TMR_struct * const _TMR1 = (void *) (TMR1_BASE);
static volatile struct TMR_struct * const _TMR2 = (void *) (TMR2_BASE);
static volatile struct TMR_struct * const _TMR3 = (void *) (TMR3_BASE);
#define TMR0 (*_TMR0)
#define TMR1 (*_TMR1)
#define TMR2 (*_TMR2)
#define TMR3 (*_TMR3)
/* Used to compute which enable bit to set for a particular timer, e.g.
TMR0.ENBL |= TMR_ENABLE_BIT(TMR2);
Helpful when you're using macros to define timers
*/
#define TMR_ENABLE_BIT(x) ((&(x) == &(TMR0)) ? 1 : (&(x) == &(TMR1)) ? 2 : (&(x) == &(TMR2)) ? 4 : (&(x) == &(TMR3)) ? 8 : 0)
#define TMR0_PIN GPIO_08
#define TMR1_PIN GPIO_09
#define TMR2_PIN GPIO_10
#define TMR3_PIN GPIO_11
/* Old timer definitions, for compatibility */
#ifndef REG_NO_COMPAT
#define TMR_REGOFF_COMP1 (0x0)
#define TMR_REGOFF_COMP2 (0x2)
#define TMR_REGOFF_CAPT (0x4)
#define TMR_REGOFF_LOAD (0x6)
#define TMR_REGOFF_HOLD (0x8)
#define TMR_REGOFF_CNTR (0xa)
#define TMR_REGOFF_CTRL (0xc)
#define TMR_REGOFF_SCTRL (0xe)
#define TMR_REGOFF_CMPLD1 (0x10)
#define TMR_REGOFF_CMPLD2 (0x12)
#define TMR_REGOFF_CSCTRL (0x14)
#define TMR_REGOFF_ENBL (0x1e)
/* one enable register to rule them all */
#define TMR_ENBL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_ENBL))
/* Timer 0 registers */
#define TMR0_COMP1 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_COMP1))
#define TMR0_COMP_UP TMR0_COMP1
#define TMR0_COMP2 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_COMP2))
#define TMR0_COMP_DOWN TMR0_COMP2
#define TMR0_CAPT ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CAPT))
#define TMR0_LOAD ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_LOAD))
#define TMR0_HOLD ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_HOLD))
#define TMR0_CNTR ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CNTR))
#define TMR0_CTRL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CTRL))
#define TMR0_SCTRL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_SCTRL))
#define TMR0_CMPLD1 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CMPLD1))
#define TMR0_CMPLD2 ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CMPLD2))
#define TMR0_CSCTRL ((volatile uint16_t *) (TMR0_BASE + TMR_REGOFF_CSCTRL))
/* Timer 1 registers */
#define TMR1_COMP1 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_COMP1))
#define TMR1_COMP_UP TMR1_COMP1
#define TMR1_COMP2 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_COMP2))
#define TMR1_COMP_DOWN TMR1_COMP2
#define TMR1_CAPT ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CAPT))
#define TMR1_LOAD ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_LOAD))
#define TMR1_HOLD ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_HOLD))
#define TMR1_CNTR ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CNTR))
#define TMR1_CTRL ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CTRL))
#define TMR1_SCTRL ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_SCTRL))
#define TMR1_CMPLD1 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CMPLD1))
#define TMR1_CMPLD2 ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CMPLD2))
#define TMR1_CSCTRL ((volatile uint16_t *) (TMR1_BASE + TMR_REGOFF_CSCTRL))
/* Timer 2 registers */
#define TMR2_COMP1 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_COMP1))
#define TMR2_COMP_UP TMR2_COMP1
#define TMR2_COMP2 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_COMP2))
#define TMR2_COMP_DOWN TMR2_COMP2
#define TMR2_CAPT ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CAPT))
#define TMR2_LOAD ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_LOAD))
#define TMR2_HOLD ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_HOLD))
#define TMR2_CNTR ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CNTR))
#define TMR2_CTRL ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CTRL))
#define TMR2_SCTRL ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_SCTRL))
#define TMR2_CMPLD1 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CMPLD1))
#define TMR2_CMPLD2 ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CMPLD2))
#define TMR2_CSCTRL ((volatile uint16_t *) (TMR2_BASE + TMR_REGOFF_CSCTRL))
/* Timer 3 registers */
#define TMR3_COMP1 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_COMP1))
#define TMR3_COMP_UP TMR3_COMP1
#define TMR3_COMP2 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_COMP2))
#define TMR3_COMP_DOWN TMR3_COMP2
#define TMR3_CAPT ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CAPT))
#define TMR3_LOAD ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_LOAD))
#define TMR3_HOLD ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_HOLD))
#define TMR3_CNTR ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CNTR))
#define TMR3_CTRL ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CTRL))
#define TMR3_SCTRL ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_SCTRL))
#define TMR3_CMPLD1 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CMPLD1))
#define TMR3_CMPLD2 ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CMPLD2))
#define TMR3_CSCTRL ((volatile uint16_t *) (TMR3_BASE + TMR_REGOFF_CSCTRL))
#define TMR(num, reg) CAT2(TMR,num,_##reg)
#endif /* REG_NO_COMPAT */
#endif
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