Giacomo Tesio
c7d0f621c9
I'm very grateful to Charles Forsyth for creating most of Jehanne's kernel and to 9front's guys for all the code and ideas they freely share. Here I make their copyrights explicit as they had been erroneusly omitted or messed up before. Sorry.
111 lines
1.6 KiB
C
111 lines
1.6 KiB
C
/* Copyright (C) Charles Forsyth
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* See /doc/license/NOTICE.Plan9-9k.txt for details about the licensing.
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*/
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/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
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* See /doc/license/gpl-2.0.txt for details about the licensing.
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*/
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/*
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* Stub.
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*/
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#include "u.h"
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#include "../port/lib.h"
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#include "mem.h"
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#include "dat.h"
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#include "fns.h"
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#include "../port/error.h"
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extern Dev* devtab[];
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void
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devtabreset(void)
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{
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int i;
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Dev *d;
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for(i = 0; devtab[i] != nil; i++){
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d = devtab[i];
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d->reset();
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}
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}
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void
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devtabinit(void)
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{
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int i;
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for(i = 0; devtab[i] != nil; i++)
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devtab[i]->init();
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}
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void
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devtabshutdown(void)
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{
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int i;
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/*
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* Shutdown in reverse order.
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*/
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for(i = 0; devtab[i] != nil; i++)
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;
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for(i--; i >= 0; i--)
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devtab[i]->shutdown();
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}
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Dev*
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devtabget(int dc, int user)
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{
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int i;
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for(i = 0; devtab[i] != nil; i++){
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if(devtab[i]->dc == dc)
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return devtab[i];
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}
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if(user == 0)
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panic("devtabget %C\n", dc);
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return nil;
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}
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Dev*
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devbyname(char *name)
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{
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int i;
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for(i = 0; devtab[i] != nil; i++)
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if(jehanne_strcmp(devtab[i]->name, name) == 0)
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return devtab[i];
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return nil;
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}
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long
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devtabread(Chan* _1, void* buf, long n, int64_t off)
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{
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int i;
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Dev *dev;
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char *alloc, *e, *p;
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alloc = jehanne_malloc(READSTR);
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if(alloc == nil)
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error(Enomem);
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p = alloc;
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e = p + READSTR;
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for(i = 0; devtab[i] != nil; i++){
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dev = devtab[i];
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p = jehanne_seprint(p, e, "#%C %s\n", dev->dc, dev->name);
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}
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if(waserror()){
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jehanne_free(alloc);
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nexterror();
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}
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n = readstr(off, buf, n, alloc);
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jehanne_free(alloc);
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poperror();
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return n;
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}
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