board_midgee.h

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/* Copyright (c) 2012
    Daniel Thiele,
    Axel Wachtler
   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   * Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
   * 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.
   * Neither the name of the authors 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. */

/* $Id: board__midgee_8h_source.html,v 1.1.1.3 2013/04/09 21:11:31 awachtler Exp $ */
#ifndef BOARD_MIDGEE_H
#define BOARD_MIDGEE_H  (1)

# define BOARD_TYPE (BOARD_MIDGEE)
# define BOARD_NAME "Midgee"     
# define RADIO_TYPE (RADIO_AT86RF232)  
/*=== Compile time parameters ========================================*/

#ifndef DEFAULT_SPI_RATE
# define DEFAULT_SPI_RATE  (SPI_RATE_1_2)
#endif

/*=== Hardware Components ============================================*/

/*=== TRX pin access macros ==========================================*/

#define DDR_TRX_RESET   DDRC          
#define PORT_TRX_RESET  PORTC         
#define MASK_TRX_RESET  ((1<<2))      
/* check in board.h if standard definitions of TRX_RESET_INIT,
   TRX_RESET_HIGH, TRX_RESET_LOW are Ok, otherwise define here */

#define PORT_TRX_SLPTR  PORTC         
#define DDR_TRX_SLPTR   DDRC          
#define MASK_TRX_SLPTR  ((1<<0))    
/*=== IRQ access macros ==============================================*/

#define TRX_IRQ_PORT (PORTB)
#define TRX_IRQ_DDR (DDRB)
#define TRX_IRQ_PIN (PINB)
#define TRX_IRQ_bp  (0)

# define TRX_IRQ_vect    TIMER1_CAPT_vect    
# define TRX_IRQ_INIT()  do{ TCCR1B = (1<<ICES1) | (1<<CS10); } while(0) 
#define DI_TRX_IRQ() { TIMSK1 &= ~(1<<ICIE1); }
#define EI_TRX_IRQ() { TIMSK1 |= (1<<ICIE1); }

/*=== SPI access macros ==============================================*/
#define SPI_TYPE  SPI_TYPE_SPI
#define DDR_SPI  (DDRB)   
#define PORT_SPI (PORTB)  
#define SPI_MOSI (1<<PB3)  
#define SPI_MISO (1<<PB4)  
#define SPI_SCK  (1<<PB5)  
#define SPI_SS   (1<<PB2)  
#define SPI_DATA_REG SPDR    
static inline void SPI_INIT(uint8_t spirate)
{
    /* first configure SPI Port, then SPCR */
    
    PORT_SPI |= SPI_SS | SPI_MISO | SPI_MOSI | SPI_SCK;
    DDR_SPI  |= SPI_MOSI | SPI_SCK | SPI_SS;
    DDR_SPI  &= ~SPI_MISO;

    SPCR = ((1<<SPE) | (1<<MSTR));
    
    SPCR &= ~((1<<SPR1) | (1<<SPR0) );
    SPSR &= ~(1<<SPI2X);

    SPCR |= (spirate & 0x03);
    SPSR |= ((spirate >> 2) & 0x01);
}

#define SPI_SELN_LOW()       uint8_t sreg = SREG; cli(); PORT_SPI &=~SPI_SS

#define SPI_SELN_HIGH()      PORT_SPI |= SPI_SS; SREG = sreg

#define SPI_WAITFOR()        do { while((SPSR & (1<<SPIF)) == 0);} while(0)

/*=== LED access macros ==============================================*/

#define LED_PORT      PORTD      
#define LED_DDR       DDRD       
#define LED_MASK      (0x10)     
#define LED_SHIFT     (3)        
#define LEDS_INVERSE  (0)        
#define LED_NUMBER    (2)        
/* special handling for this board to enable light measurement */
#define LED_PIN       PIND       
#define LED_ANODE_bp   (4)      
#define LED_CATHODE_bp (3)      
/* special handling required */
#define LED_INIT() do{ LED_PORT &= ~((1<<LED_CATHODE_bp) | (1<<LED_ANODE_bp)); \
            LED_DDR |= ((1<<LED_CATHODE_bp) | (1<<LED_ANODE_bp)); }while(0)

/*=== KEY access macros ==============================================*/
#define NO_KEYS       (1)        
/*=== Host Interface ================================================*/

#define HIF_TYPE    HIF_NONE

/*=== TIMER Interface ===============================================*/

/* setup timer with a tick of 1ms (assuming F_CPU = 8MHz fixed) */

#define HWTMR_PRESCALE  (8)
#define HWTIMER_TICK    ((1.0*HWTMR_PRESCALE)/F_CPU)
#define HWTIMER_TICK_NB (1000UL)
#define HWTIMER_REG     (TCNT1)
#define TIMER_TICK      (HWTIMER_TICK_NB * HWTIMER_TICK)
#define TIMER_POOL_SIZE (4)
#define TIMER_INIT() \
    do{ \
        TCCR1B = 0; \
        OCR1A = HWTIMER_TICK_NB; \
        TCCR1B |= ((1<<WGM12) | (1<<CS11)); \
        TIMSK1 |= (1<<OCIE1A); \
    }while(0)
# define TIMER_IRQ_vect   TIMER1_COMPA_vect

/*=== Special Hardware Ressources ===================================*/

#endif /* BOARD_ROSE231_H */