gen: remove vpi (no longer used)

This commit is contained in:
Florent Kermarrec 2016-03-21 20:07:03 +01:00
parent cf29ee0b91
commit dd2397b57c
4 changed files with 0 additions and 514 deletions

View File

@ -1,27 +0,0 @@
INSTDIR = $(shell iverilog-vpi --install-dir)
CFLAGS = -Wall -O2 $(CFLAGS_$@)
VPI_CFLAGS := $(shell iverilog-vpi --cflags)
# Define the below flags for a Windows build.
# Make sure to run iverilog-vpi with -mingw and -ivl options if necessary!
# i.e. iverilog-vpi -mingw=C:\msys64\mingw32 -ivl=C:\msys64\mingw32
# MINGW_FLAGS=-lWs2_32
OBJ=ipc.o main.o
all: migensim.vpi
%.o: %.c
$(CC) $(CFLAGS) $(VPI_CFLAGS) -c $(INCDIRS) -o $@ $<
migensim.vpi: $(OBJ)
iverilog-vpi $(MINGW_FLAGS) --name=migensim $^
install: migensim.vpi
install -m755 -t $(INSTDIR) $^
clean:
rm -f $(OBJ)
rm -f migensim.vpi
.PHONY: install clean

View File

@ -1,260 +0,0 @@
/*
* Copyright (C) 2012 Vermeer Manufacturing Co.
* License: GPLv3 with additional permissions (see README).
*/
#ifdef _WIN32
#define WINVER 0x501
#endif
#include <assert.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef _WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <sys/socket.h>
#include <sys/un.h>
#endif
#include "ipc.h"
struct ipc_softc {
int socket;
go_handler h_go;
write_handler h_write;
read_handler h_read;
void *user;
};
#define MAX_LEN 2048
#ifdef _WIN32
#define HEADER_LEN 2
#define SOCKET_PORT "50007"
unsigned char ipc_rxbuffer[2*MAX_LEN];
int ipc_rxlen;
#else
#define HEADER_LEN 0
#endif
struct ipc_softc *ipc_connect(const char *sockaddr,
go_handler h_go, write_handler h_write, read_handler h_read, void *user)
{
struct ipc_softc *sc;
#ifdef _WIN32
struct addrinfo hints, *my_addrinfo;
WSADATA wsaData;
ipc_rxlen = 0;
#else
struct sockaddr_un addr;
#endif
sc = malloc(sizeof(struct ipc_softc));
if(!sc) return NULL;
sc->h_go = h_go;
sc->h_write = h_write;
sc->h_read = h_read;
sc->user = user;
#ifdef _WIN32
/* Initialize Winsock. */
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
free(sc);
return NULL;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
if(getaddrinfo(sockaddr, SOCKET_PORT, NULL, &my_addrinfo) != 0) {
free(sc);
return NULL;
}
sc->socket = socket(AF_INET, SOCK_STREAM, 0);
if(sc->socket < 0) {
free(sc);
return NULL;
}
if(connect(sc->socket, my_addrinfo->ai_addr, my_addrinfo->ai_addrlen) != 0) {
close(sc->socket);
free(sc);
return NULL;
}
#else
sc->socket = socket(AF_UNIX, SOCK_SEQPACKET, 0);
if(sc->socket < 0) {
free(sc);
return NULL;
}
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, sockaddr);
if(connect(sc->socket, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
close(sc->socket);
free(sc);
return NULL;
}
#endif
return sc;
}
void ipc_destroy(struct ipc_softc *sc)
{
close(sc->socket);
free(sc);
#ifdef _WIN32
WSACleanup();
#endif
}
enum {
MESSAGE_TICK = 0,
MESSAGE_GO,
MESSAGE_WRITE,
MESSAGE_READ,
MESSAGE_READ_REPLY
};
static int ipc_receive_packet(struct ipc_softc *sc, unsigned char *buffer) {
#ifdef _WIN32
int len;
int packet_len;
/* ensure we have packet header */
while(ipc_rxlen < HEADER_LEN) {
len = recv(sc->socket, (char *)&ipc_rxbuffer[ipc_rxlen], MAX_LEN, 0);
if(len)
ipc_rxlen += len;
}
/* compute packet length and ensure we have the payload */
packet_len = (ipc_rxbuffer[1] << 8) | ipc_rxbuffer[0];
while(ipc_rxlen < packet_len) {
len = recv(sc->socket, (char *)&ipc_rxbuffer[ipc_rxlen], MAX_LEN, 0);
if(len)
ipc_rxlen += len;
}
/* copy packet to buffer */
memcpy(buffer, ipc_rxbuffer + HEADER_LEN, packet_len - HEADER_LEN);
/* prepare ipc_rxbuffer for next packet */
ipc_rxlen = ipc_rxlen - packet_len;
memcpy(ipc_rxbuffer, ipc_rxbuffer + packet_len, ipc_rxlen);
return packet_len - HEADER_LEN;
#else
return recv(sc->socket, buffer, MAX_LEN, 0);
#endif
}
/*
* 0 -> error
* 1 -> success
* 2 -> graceful shutdown
*/
int ipc_receive(struct ipc_softc *sc)
{
unsigned char buffer[MAX_LEN];
ssize_t l = 0;
int i;
l = ipc_receive_packet(sc, (unsigned char *)&buffer);
if(l == 0)
return 2;
if((l < 0) || (l >= MAX_LEN))
return 0;
i = 0;
switch(buffer[i++]) {
case MESSAGE_GO:
assert((l - i) == 0);
return sc->h_go(sc->user);
case MESSAGE_WRITE: {
char *name;
int nchunks;
unsigned char *chunks;
unsigned int chunk_index;
name = (char *)&buffer[i];
i += strlen(name) + 1;
assert((i+4) < l);
chunk_index = buffer[i] | buffer[i+1] << 8 | buffer[i+2] << 16 | buffer[i+3] << 24;
i += 4;
nchunks = buffer[i++];
assert(i + nchunks == l);
chunks = (unsigned char *)&buffer[i];
return sc->h_write(name, chunk_index, nchunks, chunks, sc->user);
}
case MESSAGE_READ: {
char *name;
unsigned int name_index;
name = (char *)&buffer[i];
i += strlen(name) + 1;
assert((i+4) == l);
name_index = buffer[i] | buffer[i+1] << 8 | buffer[i+2] << 16 | buffer[i+3] << 24;
return sc->h_read(name, name_index, sc->user);
}
default:
return 0;
}
}
int ipc_tick(struct ipc_softc *sc)
{
ssize_t l;
char c[HEADER_LEN + 1];
#ifdef _WIN32
c[0] = 3;
c[1] = 0;
#endif
c[HEADER_LEN + 0] = MESSAGE_TICK;
l = send(sc->socket, c, HEADER_LEN + 1, 0);
if(l != (HEADER_LEN + 1))
return 0;
return 1;
}
int ipc_read_reply(struct ipc_softc *sc, int nchunks, const unsigned char *chunks)
{
int len;
char buffer[MAX_LEN];
ssize_t l;
len = nchunks + HEADER_LEN + 2;
assert(len < MAX_LEN);
assert(nchunks < 256);
#ifdef _WIN32
buffer[0] = len & 0xFF;
buffer[1] = (0xFF00 & len) >> 8;
#endif
buffer[HEADER_LEN + 0] = MESSAGE_READ_REPLY;
buffer[HEADER_LEN + 1] = nchunks;
memcpy(&buffer[HEADER_LEN + 2], chunks, nchunks);
l = send(sc->socket, buffer, len, 0);
if(l != len)
return 0;
return 1;
}

View File

@ -1,24 +0,0 @@
/*
* Copyright (C) 2012 Vermeer Manufacturing Co.
* License: GPLv3 with additional permissions (see README).
*/
#ifndef __IPC_H
#define __IPC_H
struct ipc_softc;
typedef int(*go_handler)(void *);
typedef int(*write_handler)(char *, int, int, const unsigned char *, void *);
typedef int(*read_handler)(char *, int, void *);
struct ipc_softc *ipc_connect(const char *sockaddr,
go_handler h_go, write_handler h_write, read_handler h_read, void *user);
void ipc_destroy(struct ipc_softc *sc);
int ipc_receive(struct ipc_softc *sc);
int ipc_tick(struct ipc_softc *sc);
int ipc_read_reply(struct ipc_softc *sc, int nchunks, const unsigned char *value);
#endif /* __IPC_H */

View File

@ -1,203 +0,0 @@
/*
* Copyright (C) 2012 Vermeer Manufacturing Co.
* License: GPLv3 with additional permissions (see README).
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <vpi_user.h>
#include "ipc.h"
struct migensim_softc {
struct ipc_softc *ipc;
int has_go;
};
static int h_go(void *user)
{
struct migensim_softc *sc = (struct migensim_softc *)user;
sc->has_go = 1;
return 1;
}
static s_vpi_time zero_delay = {
.type = vpiSimTime,
.high = 0,
.low = 0
};
static int h_write(char *name, int index, int nchunks, const unsigned char *chunks, void *user)
{
vpiHandle item;
s_vpi_vecval vector[64];
int i;
s_vpi_value value;
item = vpi_handle_by_name(name, NULL);
if(item == NULL) {
fprintf(stderr, "Attempted to write non-existing signal %s\n", name);
return 0;
}
if(vpi_get(vpiType, item) == vpiMemory)
item = vpi_handle_by_index(item, index);
else
assert(index == 0);
assert(nchunks <= 255);
for(i=0;i<64;i++) {
vector[i].aval = 0;
vector[i].bval = 0;
}
for(i=0;i<nchunks;i++)
vector[i/4].aval |= chunks[i] << 8*(i % 4);
value.format = vpiVectorVal;
value.value.vector = vector;
vpi_put_value(item, &value, &zero_delay, vpiInertialDelay);
return 1;
}
static int h_read(char *name, int index, void *user)
{
struct migensim_softc *sc = (struct migensim_softc *)user;
vpiHandle item;
s_vpi_value value;
int size;
int i;
int nvals;
unsigned int vals[64];
int nchunks;
unsigned char chunks[255];
item = vpi_handle_by_name(name, NULL);
if(item == NULL) {
fprintf(stderr, "Attempted to read non-existing signal %s\n", name);
return 0;
}
if(vpi_get(vpiType, item) == vpiMemory)
item = vpi_handle_by_index(item, index);
else
assert(index == 0);
value.format = vpiVectorVal;
vpi_get_value(item, &value);
size = vpi_get(vpiSize, item);
nvals = (size + 31)/32;
assert(nvals <= 64);
for(i=0;i<nvals;i++)
vals[i] = value.value.vector[i].aval & ~value.value.vector[i].bval;
nchunks = (size + 7)/8;
assert(nchunks <= 255);
for(i=0;i<nchunks;i++) {
switch(i % 4) {
case 0:
chunks[i] = vals[i/4] & 0xff;
break;
case 1:
chunks[i] = (vals[i/4] & 0xff00) >> 8;
break;
case 2:
chunks[i] = (vals[i/4] & 0xff0000) >> 16;
break;
case 3:
chunks[i] = (vals[i/4] & 0xff000000) >> 24;
break;
}
}
if(!ipc_read_reply(sc->ipc, nchunks, chunks)) {
perror("ipc_read_reply");
return 0;
}
return 1;
}
static int process_until_go(struct migensim_softc *sc)
{
int r;
sc->has_go = 0;
while(!sc->has_go) {
r = ipc_receive(sc->ipc);
if(r != 1)
return r;
}
return 1;
}
static PLI_INT32 connect_calltf(PLI_BYTE8 *user)
{
struct migensim_softc *sc = (struct migensim_softc *)user;
vpiHandle sys;
vpiHandle argv;
vpiHandle item;
s_vpi_value value;
sys = vpi_handle(vpiSysTfCall, 0);
argv = vpi_iterate(vpiArgument, sys);
item = vpi_scan(argv);
value.format = vpiStringVal;
vpi_get_value(item, &value);
sc->ipc = ipc_connect(value.value.str, h_go, h_write, h_read, sc);
if(sc->ipc == NULL) {
perror("ipc_connect");
vpi_control(vpiFinish, 1);
return 0;
}
return 0;
}
static PLI_INT32 tick_calltf(PLI_BYTE8 *user)
{
struct migensim_softc *sc = (struct migensim_softc *)user;
int r;
if(!ipc_tick(sc->ipc)) {
perror("ipc_tick");
vpi_control(vpiFinish, 1);
ipc_destroy(sc->ipc);
sc->ipc = NULL;
return 0;
}
r = process_until_go(sc);
if(r != 1) {
vpi_control(vpiFinish, r == 2 ? 0 : 1);
ipc_destroy(sc->ipc);
sc->ipc = NULL;
return 0;
}
return 0;
}
static struct migensim_softc sc;
static void simple_register(const char *tfname, PLI_INT32 (*calltf)(PLI_BYTE8 *))
{
s_vpi_systf_data tf_data;
tf_data.type = vpiSysTask;
tf_data.tfname = tfname;
tf_data.calltf = calltf;
tf_data.compiletf = NULL;
tf_data.sizetf = 0;
tf_data.user_data = (void *)&sc;
vpi_register_systf(&tf_data);
}
static void migensim_register()
{
simple_register("$migensim_connect", connect_calltf);
simple_register("$migensim_tick", tick_calltf);
}
void (*vlog_startup_routines[])() = {
migensim_register,
0
};