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eda: introduce Cgo-based EDA driver
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‎eda/alt_types.h‎

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#ifndef __ALT_TYPES_H__
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#define __ALT_TYPES_H__
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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2009 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the "Software"), *
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* to deal in the Software without restriction, including without limitation *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
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* and/or sell copies of the Software, and to permit persons to whom the *
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
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* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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* Altera does not recommend, suggest or require that this reference design *
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* file be used in conjunction or combination with any other product. *
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******************************************************************************/
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/*
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* Don't declare these typedefs if this file is included by assembly source.
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*/
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#ifndef ALT_ASM_SRC
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typedef signed char alt_8;
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typedef unsigned char alt_u8;
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typedef signed short alt_16;
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typedef unsigned short alt_u16;
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typedef signed long alt_32;
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typedef unsigned long alt_u32;
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typedef long long alt_64;
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typedef unsigned long long alt_u64;
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#endif
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#define ALT_INLINE __inline__
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#define ALT_ALWAYS_INLINE __attribute__((always_inline))
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#define ALT_WEAK __attribute__((weak))
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#endif /* __ALT_TYPES_H__ */

‎eda/altera_avalon_fifo_regs.h‎

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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2006 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the "Software"), *
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* to deal in the Software without restriction, including without limitation *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
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* and/or sell copies of the Software, and to permit persons to whom the *
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
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* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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******************************************************************************/
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#ifndef __ALTERA_AVALON_FIFO_REGS_H__
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#define __ALTERA_AVALON_FIFO_REGS_H__
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#include <io.h>
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#define ALTERA_AVALON_FIFO_OTHER_INFO_REG 1
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#define ALTERA_AVALON_FIFO_DATA_REG 0
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#define ALTERA_AVALON_FIFO_LEVEL_REG 0
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#define ALTERA_AVALON_FIFO_STATUS_REG 1
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#define ALTERA_AVALON_FIFO_EVENT_REG 2
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#define ALTERA_AVALON_FIFO_IENABLE_REG 3
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#define ALTERA_AVALON_FIFO_ALMOSTFULL_REG 4
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#define ALTERA_AVALON_FIFO_ALMOSTEMPTY_REG 5
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// Read slave
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#define IORD_ALTERA_AVALON_FIFO_DATA(base) \
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IORD(base, ALTERA_AVALON_FIFO_DATA_REG)
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#define IORD_ALTERA_AVALON_FIFO_OTHER_INFO(base) \
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IORD(base, ALTERA_AVALON_FIFO_OTHER_INFO_REG)
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// Write slave
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#define IOWR_ALTERA_AVALON_FIFO_DATA(base, data) \
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IOWR(base, ALTERA_AVALON_FIFO_DATA_REG, data)
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#define IOWR_ALTERA_AVALON_FIFO_OTHER_INFO(base, data) \
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IOWR(base, ALTERA_AVALON_FIFO_OTHER_INFO_REG, data)
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// Control slave
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#define IORD_ALTERA_AVALON_FIFO_LEVEL(base) \
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IORD(base, ALTERA_AVALON_FIFO_LEVEL_REG)
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#define IORD_ALTERA_AVALON_FIFO_STATUS(base) \
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IORD(base, ALTERA_AVALON_FIFO_STATUS_REG)
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#define IORD_ALTERA_AVALON_FIFO_EVENT(base) \
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IORD(base, ALTERA_AVALON_FIFO_EVENT_REG)
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#define IORD_ALTERA_AVALON_FIFO_IENABLE(base) \
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IORD(base, ALTERA_AVALON_FIFO_IENABLE_REG)
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#define IORD_ALTERA_AVALON_FIFO_ALMOSTFULL(base) \
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IORD(base, ALTERA_AVALON_FIFO_ALMOSTFULL_REG)
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#define IORD_ALTERA_AVALON_FIFO_ALMOSTEMPTY(base) \
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IORD(base, ALTERA_AVALON_FIFO_ALMOSTEMPTY_REG)
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#define IOWR_ALTERA_AVALON_FIFO_EVENT(base, data) \
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IOWR(base, ALTERA_AVALON_FIFO_EVENT_REG, data)
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#define IOWR_ALTERA_AVALON_FIFO_IENABLE(base, data) \
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IOWR(base, ALTERA_AVALON_FIFO_IENABLE_REG, data)
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#define IOWR_ALTERA_AVALON_FIFO_ALMOSTFULL(base, data) \
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IOWR(base, ALTERA_AVALON_FIFO_ALMOSTFULL_REG, data)
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#define IOWR_ALTERA_AVALON_FIFO_ALMOSTEMPTY(base, data) \
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IOWR(base, ALTERA_AVALON_FIFO_ALMOSTEMPTY_REG, data)
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#define ALTERA_AVALON_FIFO_EVENT_F_MSK (0x01)
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#define ALTERA_AVALON_FIFO_EVENT_E_MSK (0x02)
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#define ALTERA_AVALON_FIFO_EVENT_AF_MSK (0x04)
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#define ALTERA_AVALON_FIFO_EVENT_AE_MSK (0x08)
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#define ALTERA_AVALON_FIFO_EVENT_OVF_MSK (0x10)
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#define ALTERA_AVALON_FIFO_EVENT_UDF_MSK (0x20)
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#define ALTERA_AVALON_FIFO_EVENT_ALL (0x3F)
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#define ALTERA_AVALON_FIFO_STATUS_F_MSK (0x01)
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#define ALTERA_AVALON_FIFO_STATUS_E_MSK (0x02)
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#define ALTERA_AVALON_FIFO_STATUS_AF_MSK (0x04)
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#define ALTERA_AVALON_FIFO_STATUS_AE_MSK (0x08)
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#define ALTERA_AVALON_FIFO_STATUS_OVF_MSK (0x10)
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#define ALTERA_AVALON_FIFO_STATUS_UDF_MSK (0x20)
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#define ALTERA_AVALON_FIFO_STATUS_ALL (0x3F)
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#define ALTERA_AVALON_FIFO_IENABLE_F_MSK (0x01)
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#define ALTERA_AVALON_FIFO_IENABLE_E_MSK (0x02)
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#define ALTERA_AVALON_FIFO_IENABLE_AF_MSK (0x04)
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#define ALTERA_AVALON_FIFO_IENABLE_AE_MSK (0x08)
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#define ALTERA_AVALON_FIFO_IENABLE_OVF_MSK (0x10)
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#define ALTERA_AVALON_FIFO_IENABLE_UDF_MSK (0x20)
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#define ALTERA_AVALON_FIFO_IENABLE_ALL (0x3F)
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#endif /* __ALTERA_AVALON_FIFO_REGS_H__ */

‎eda/cdevice.go‎

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// Copyright 2021 The go-lpc Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package eda
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/** TO DO LIST
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*
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* change HR_id numbering (1 to 8 instead of 0 to 7) (+ processing script)
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* change trigger_id numbering (start 1) (+ processing script)
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*
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*/
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//#cgo CFLAGS: -g -Wall -std=c99 -D_GNU_SOURCE=1 -I.
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//#cgo CFLAGS arm: -I/build/soc_eds/ip/altera/hps/altera_hps/hwlib/include
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//#cgo LDFLAGS arm: -static
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//
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//#include <stdlib.h>
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//#include <string.h>
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//#include <stdint.h>
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//#include "device.h"
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import "C"
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import (
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"fmt"
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"net"
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"strconv"
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"time"
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"unsafe"
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"github.com/go-lpc/mim/conddb"
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)
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type cdevice struct {
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ctx *C.Device_t
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done chan int // signal to stop DAQ
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}
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var _ device = (*cdevice)(nil)
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func newCDevice(devmem, odir, devshm string, opts ...Option) (*cdevice, error) {
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ctx := C.new_device()
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if ctx == nil {
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return nil, fmt.Errorf("ceda: could not create EDA device")
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}
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dev := &cdevice{
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ctx: ctx,
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}
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return dev, nil
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}
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func (dev *cdevice) Close() error {
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if dev.ctx == nil {
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return nil
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}
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C.device_free(dev.ctx)
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dev.ctx = nil
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return nil
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}
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func (dev *cdevice) Boot(cfg []conddb.RFM) error {
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for _, rfm := range cfg {
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rc := C.device_boot_rfm(
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dev.ctx,
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C.uint8_t(rfm.ID), C.int(rfm.Slot),
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C.uint32_t(rfm.DAQ.RShaper),
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C.uint32_t(rfm.DAQ.TriggerMode),
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)
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if rc != 0 {
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return fmt.Errorf(
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"ceda: could not boot RFM=%d slot=%d: err=%v",
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rfm.ID, rfm.Slot, rc,
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)
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}
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}
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return nil
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}
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func (dev *cdevice) ConfigureDIF(addr string, dif uint8, asics []conddb.ASIC) error {
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for i, asic := range asics {
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var (
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cfg = asic.HRConfig()
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ihr = uint32(i)
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n = len(cfg)
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)
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for i, v := range cfg {
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dev.hrscSetBit(ihr, uint32(n-1-i), uint32(v))
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}
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}
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host, port_, err := net.SplitHostPort(addr)
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if err != nil {
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return fmt.Errorf(
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"ceda: could not infer rfm-socket host/port from %q: %w",
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addr, err,
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)
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}
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c_addr := C.CString(host)
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defer C.free(unsafe.Pointer(c_addr))
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port, err := strconv.Atoi(port_)
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if err != nil {
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return fmt.Errorf(
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"ceda: could not infer rfm-socket port from %q: %w", addr, err,
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)
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}
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rc := C.device_configure_dif(dev.ctx, C.uint8_t(dif), c_addr, C.int(port))
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if rc != 0 {
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return fmt.Errorf("ceda: could not configure EDA-DIF=%d: rc=%d", dif, rc)
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}
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return nil
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}
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func (dev *cdevice) Initialize() error {
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rc := C.device_initialize(dev.ctx)
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if rc != 0 {
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return fmt.Errorf("ceda: could not initialize EDA device rc=%d", rc)
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}
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return nil
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}
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func (dev *cdevice) Start(run uint32) error {
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rc := C.device_start(dev.ctx, C.uint32_t(run))
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if rc != 0 {
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return fmt.Errorf("ceda: could not start EDA device: rc=%d", rc)
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}
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go dev.loop()
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return nil
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}
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func (dev *cdevice) loop() {
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dev.done = make(chan int)
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defer close(dev.done)
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C.device_loop(dev.ctx)
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}
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func (dev *cdevice) Stop() error {
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const timeout = 10 * time.Second
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tck := time.NewTimer(timeout)
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defer tck.Stop()
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C.device_stop_loop(dev.ctx)
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select {
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case <-dev.done:
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case <-tck.C:
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return fmt.Errorf("ceda: could not stop DAQ (timeout=%v)", timeout)
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}
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rc := C.device_stop(dev.ctx)
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if rc != 0 {
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return fmt.Errorf("ceda: could not stop EDA device: rc=%d", rc)
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}
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return nil
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}
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func (dev *cdevice) hrscSetBit(hr, addr, bit uint32) {
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C.HRSC_set_bit(C.alt_u32(hr), C.alt_u32(addr), C.alt_u32(bit))
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}

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