globals.h

/*
 * globals.h - global macros
 *
 * Author: Dan Green (danngreen1@gmail.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * See http://creativecommons.org/licenses/MIT/ for more information.
 *
 * -----------------------------------------------------------------------------
 */


#ifndef GLOBALS_H_
#define GLOBALS_H_

//codec_BUFF_LEN = Size (in samples) of the DMA rx/tx buffers:
//Each channel = codec_BUFF_LEN/2 samples
//We process the rx buffer when it's half-full and 100% full, so codec_BUFF_LEN/4 samples are processed at one time
#define codec_BUFF_LEN 32

#define FW_VERSION 5

//Error codes for g_error
#define OUT_OF_MEM 1
#define OUT_OF_SAMPLES 2
#define SPIERROR_1 4
#define SPIERROR_2 8
#define DMA_OVR_ERROR 16
#define sFLASH_BAD_ID 32
#define WRITE_BUFF_OVERRUN 64
#define READ_BUFF1_OVERRUN 128
#define READ_BUFF2_OVERRUN 256
#define READ_MEM_ERROR 512

//Number of channels
#define NUM_CHAN 2

#define TRIG_TIME 400

#define AUTO_MUTE_ATTACK .02
#define AUTO_MUTE_DECAY .02

//#define USE_VCXO

//About 45ms delay
#define delay()						\
do {							\
  register unsigned int i;				\
  for (i = 0; i < 1000000; ++i)				\
    __asm__ __volatile__ ("nop\n\t":::"memory");	\
} while (0)


#define delay_ms(x)						\
do {							\
  register unsigned int i;				\
  for (i = 0; i < (25000*x); ++i)				\
    __asm__ __volatile__ ("nop\n\t":::"memory");	\
} while (0)


#endif /* GLOBALS_H_ */