| 1 |
9 |
nussgipfel |
/* GECKO3COM
|
| 2 |
|
|
*
|
| 3 |
|
|
* Copyright (C) 2008 by
|
| 4 |
|
|
* ___ ____ _ _
|
| 5 |
|
|
* ( _`\ ( __)( ) ( )
|
| 6 |
|
|
* | (_) )| (_ | |_| | Bern University of Applied Sciences
|
| 7 |
|
|
* | _ <'| _) | _ | School of Engineering and
|
| 8 |
|
|
* | (_) )| | | | | | Information Technology
|
| 9 |
|
|
* (____/'(_) (_) (_)
|
| 10 |
|
|
*
|
| 11 |
|
|
*
|
| 12 |
|
|
* This program is free software: you can redistribute it and/or modify
|
| 13 |
|
|
* it under the terms of the GNU General Public License as published by
|
| 14 |
|
|
* the Free Software Foundation, either version 3 of the License, or
|
| 15 |
|
|
* (at your option) any later version.
|
| 16 |
|
|
*
|
| 17 |
|
|
* This program is distributed in the hope that it will be useful,
|
| 18 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 19 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 20 |
|
|
* GNU General Public License for more details.
|
| 21 |
|
|
* You should have received a copy of the GNU General Public License
|
| 22 |
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
| 23 |
|
|
*/
|
| 24 |
|
|
|
| 25 |
|
|
/*********************************************************************/
|
| 26 |
|
|
/** \file gecko3com_gpif.h
|
| 27 |
|
|
*********************************************************************
|
| 28 |
|
|
* \brief project specific functions to handle the GPIF
|
| 29 |
|
|
*
|
| 30 |
|
|
*
|
| 31 |
|
|
*
|
| 32 |
|
|
* \author GNUradio team, Christoph Zimmermann bfh.ch
|
| 33 |
|
|
* \date 2009-4-16
|
| 34 |
|
|
*
|
| 35 |
|
|
*/
|
| 36 |
|
|
|
| 37 |
|
|
#ifndef INCLUDED_GECKO3COM_GPIF_H
|
| 38 |
|
|
#define INCLUDED_GECKO3COM_GPIF_H
|
| 39 |
|
|
|
| 40 |
32 |
nussgipfel |
/** signal that a read (data flows from the FPGA to the FX2) in in progress */
|
| 41 |
|
|
#define bmGPIF_READ_IN_PROGRESS 1
|
| 42 |
9 |
nussgipfel |
|
| 43 |
32 |
nussgipfel |
/** signal that there is data waiting in the OUT fifo to be handled */
|
| 44 |
9 |
nussgipfel |
#define bmGPIF_PENDING_DATA 2
|
| 45 |
|
|
|
| 46 |
32 |
nussgipfel |
|
| 47 |
19 |
nussgipfel |
/** flag to signal, that the GPIF receives data from the FPGA */
|
| 48 |
|
|
volatile static idata uint8_t flGPIF;
|
| 49 |
|
|
|
| 50 |
9 |
nussgipfel |
/** \brief initialize GPIF system
|
| 51 |
|
|
*
|
| 52 |
|
|
* initialize GPIF with waveform data.
|
| 53 |
|
|
* for this init_gpif initializes and hooks up all needed ISR's and configures
|
| 54 |
|
|
* auto OUT/IN mode.
|
| 55 |
|
|
*/
|
| 56 |
|
|
void init_gpif (void);
|
| 57 |
|
|
|
| 58 |
|
|
|
| 59 |
|
|
/** \brief aborts any gpif running gpif transaction */
|
| 60 |
|
|
void abort_gpif(void);
|
| 61 |
|
|
|
| 62 |
|
|
|
| 63 |
|
|
/** \brief disables gpif system
|
| 64 |
|
|
*
|
| 65 |
|
|
* disables the GPIF I/O ports, unhooks gpif ISR's and configures
|
| 66 |
|
|
* manual OUT/IN mode.
|
| 67 |
|
|
*/
|
| 68 |
|
|
void deactivate_gpif(void);
|
| 69 |
|
|
|
| 70 |
|
|
|
| 71 |
|
|
#ifdef GECKO3MAIN
|
| 72 |
|
|
|
| 73 |
|
|
/** makro to trigger a fifo read waveform */
|
| 74 |
|
|
#define gpif_trigger_read() \
|
| 75 |
|
|
do { \
|
| 76 |
|
|
GPIFREADYCFG |= bmINTRDY; /* set internal ready (INTRDY) signal */ \
|
| 77 |
|
|
SYNCDELAY; \
|
| 78 |
|
|
setup_flowstate_read(); \
|
| 79 |
|
|
SYNCDELAY; \
|
| 80 |
|
|
GPIFTCB3 = 0x00; \
|
| 81 |
|
|
GPIFTCB2 = 0x00; \
|
| 82 |
|
|
GPIFTCB1 = 0x00; \
|
| 83 |
|
|
GPIFTCB0 = 0x01; \
|
| 84 |
29 |
nussgipfel |
GPIFTRIG = bmGPIF_EP6_START | bmGPIF_READ; /* trigger FIFO IN transfer */ \
|
| 85 |
9 |
nussgipfel |
/*SYNCDELAY;*/ \
|
| 86 |
|
|
} while (0)
|
| 87 |
|
|
|
| 88 |
|
|
|
| 89 |
|
|
/** makro to trigger a fifo write waveform */
|
| 90 |
|
|
#define gpif_trigger_write() \
|
| 91 |
|
|
do { \
|
| 92 |
|
|
GPIFREADYCFG |= bmINTRDY; /* set internal ready (INTRDY) signal */ \
|
| 93 |
|
|
SYNCDELAY; \
|
| 94 |
|
|
setup_flowstate_write(); \
|
| 95 |
|
|
SYNCDELAY; \
|
| 96 |
|
|
GPIFTCB3 = 0x00; \
|
| 97 |
|
|
GPIFTCB2 = 0x00; \
|
| 98 |
|
|
GPIFTCB1 = 0x00; \
|
| 99 |
|
|
GPIFTCB0 = 0x01; \
|
| 100 |
29 |
nussgipfel |
GPIFTRIG = bmGPIF_EP2_START | bmGPIF_WRITE; /* trigger FIFO OUT transfer*/ \
|
| 101 |
9 |
nussgipfel |
/*SYNCDELAY;*/ \
|
| 102 |
|
|
} while(0)
|
| 103 |
|
|
|
| 104 |
|
|
#endif /* GECKO3MAIN */
|
| 105 |
|
|
|
| 106 |
|
|
#endif /* INCLUDED_GECKO3COM_GPIF_H */
|
