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rename: ramdisk => md

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This commit is contained in:
pk 1996-12-28 23:37:26 +00:00
parent d5b11782b5
commit a8b4babc16
2 changed files with 25 additions and 369 deletions
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50
sys/arch/atari/dev/md_root.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: md_root.c,v 1.9 1996/12/20 12:49:44 leo Exp $ */
/* $NetBSD: md_root.c,v 1.10 1996/12/28 23:37:26 pk Exp $ */
/*
* Copyright (c) 1996 Leo Weppelman.
@ -92,34 +92,34 @@ struct read_info {
};
static int loaddisk __P((struct rd_conf *, dev_t ld_dev, struct proc *));
static int loaddisk __P((struct md_conf *, dev_t ld_dev, struct proc *));
static int ramd_norm_read __P((struct read_info *));
#ifdef support_compression
static int cpy_uncompressed __P((caddr_t, int, struct read_info *));
static int rd_compressed __P((caddr_t, int, struct read_info *));
static int md_compressed __P((caddr_t, int, struct read_info *));
#endif
/*
* This is called during autoconfig.
*/
void
rd_attach_hook(unit, rd)
md_attach_hook(unit, md)
int unit;
struct rd_conf *rd;
struct md_conf *md;
{
if (atari_realconfig && (unit < RAMD_NDEV) && rd_info[unit].ramd_flag) {
printf ("rd%d:%sauto-load on open. Size %ld bytes.\n", unit,
printf ("md%d:%sauto-load on open. Size %ld bytes.\n", unit,
rd_info[unit].ramd_flag & RAMD_LCOMP ? " decompress/" : "",
rd_info[unit].ramd_size);
rd->rd_type = RD_UNCONFIGURED; /* Paranoia... */
md->md_type = MD_UNCONFIGURED; /* Paranoia... */
}
}
void
rd_open_hook(unit, rd)
md_open_hook(unit, md)
int unit;
struct rd_conf *rd;
struct md_conf *md;
{
struct ramd_info *ri;
@ -127,25 +127,25 @@ struct rd_conf *rd;
return;
ri = &rd_info[unit];
if (rd->rd_type != RD_UNCONFIGURED)
if (md->md_type != MD_UNCONFIGURED)
return; /* Only configure once */
rd->rd_addr = malloc(ri->ramd_size, M_DEVBUF, M_WAITOK);
rd->rd_size = ri->ramd_size;
if(rd->rd_addr == NULL)
md->md_addr = malloc(ri->ramd_size, M_DEVBUF, M_WAITOK);
md->md_size = ri->ramd_size;
if(md->md_addr == NULL)
return;
if(ri->ramd_flag & RAMD_LOAD) {
if (loaddisk(rd, ri->ramd_dev, curproc)) {
free(rd->rd_addr, M_DEVBUF);
rd->rd_addr = NULL;
if (loaddisk(md, ri->ramd_dev, curproc)) {
free(md->md_addr, M_DEVBUF);
md->md_addr = NULL;
return;
}
}
rd->rd_type = RD_KMEM_ALLOCATED;
md->md_type = MD_KMEM_ALLOCATED;
}
static int
loaddisk(rd, ld_dev, proc)
struct rd_conf *rd;
loaddisk(md, ld_dev, proc)
struct md_conf *md;
dev_t ld_dev;
struct proc *proc;
{
@ -170,12 +170,12 @@ struct proc *proc;
* Setup read_info:
*/
rs.bp = &buf;
rs.nbytes = rd->rd_size;
rs.nbytes = md->md_size;
rs.offset = 0;
rs.bufp = rd->rd_addr;
rs.ebufp = rd->rd_addr + rd->rd_size;
rs.bufp = md->md_addr;
rs.ebufp = md->md_addr + md->md_size;
rs.chunk = RAMD_CHUNK;
rs.media_sz = rd->rd_size;
rs.media_sz = md->md_size;
rs.strat = bdp->d_strategy;
/*
@ -191,7 +191,7 @@ struct proc *proc;
#ifdef support_compression
if(ri->ramd_flag & RAMD_LCOMP)
error = decompress(cpy_uncompressed, rd_compressed, &rs);
error = decompress(cpy_uncompressed, md_compressed, &rs);
else
#endif /* support_compression */
error = ramd_norm_read(&rs);
@ -281,7 +281,7 @@ int nbyte;
* Read a maximum of 'nbyte' bytes into 'buf'.
*/
static int
rd_compressed(buf, nbyte, rsp)
md_compressed(buf, nbyte, rsp)
caddr_t buf;
struct read_info *rsp;
int nbyte;

344
sys/arch/atari/dev/rd_root.c
View File

@ -1,344 +0,0 @@
/* $NetBSD: rd_root.c,v 1.9 1996/12/20 12:49:44 leo Exp $ */
/*
* Copyright (c) 1996 Leo Weppelman.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Leo Weppelman.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/conf.h>
#include <sys/disklabel.h>
#include <sys/disk.h>
#include <sys/dkbad.h>
#include <dev/cons.h>
#include <dev/ramdisk.h>
#include <atari/atari/device.h>
/*
* Misc. defines:
*/
#define RAMD_CHUNK (9 * 512) /* Chunk-size for auto-load */
#define RAMD_NDEV 2 /* Number of devices configured */
struct ramd_info {
u_long ramd_size; /* Size of disk in bytes */
u_long ramd_flag; /* see defs below */
dev_t ramd_dev; /* device to load from */
};
/*
* ramd_flag:
*/
#define RAMD_LOAD 0x01 /* Auto load when first opened */
#define RAMD_LCOMP 0x02 /* Input is compressed */
struct ramd_info rd_info[RAMD_NDEV] = {
{
1105920, /* 1Mb in 2160 sectors */
RAMD_LOAD, /* auto-load this device */
MAKEDISKDEV(2, 0, 2), /* XXX: This is crap! (720Kb flop) */
},
{
1474560, /* 1.44Mb in 2880 sectors */
RAMD_LOAD, /* auto-load this device */
MAKEDISKDEV(2, 0, 2), /* XXX: This is crap! (720Kb flop) */
}
};
struct read_info {
struct buf *bp; /* buffer for strategy function */
long nbytes; /* total number of bytes to read */
long offset; /* offset in input medium */
caddr_t bufp; /* current output buffer */
caddr_t ebufp; /* absolute maximum for bufp */
int chunk; /* chunk size on input medium */
int media_sz; /* size of input medium */
void (*strat)(struct buf *); /* strategy function for read */
};
static int loaddisk __P((struct rd_conf *, dev_t ld_dev, struct proc *));
static int ramd_norm_read __P((struct read_info *));
#ifdef support_compression
static int cpy_uncompressed __P((caddr_t, int, struct read_info *));
static int rd_compressed __P((caddr_t, int, struct read_info *));
#endif
/*
* This is called during autoconfig.
*/
void
rd_attach_hook(unit, rd)
int unit;
struct rd_conf *rd;
{
if (atari_realconfig && (unit < RAMD_NDEV) && rd_info[unit].ramd_flag) {
printf ("rd%d:%sauto-load on open. Size %ld bytes.\n", unit,
rd_info[unit].ramd_flag & RAMD_LCOMP ? " decompress/" : "",
rd_info[unit].ramd_size);
rd->rd_type = RD_UNCONFIGURED; /* Paranoia... */
}
}
void
rd_open_hook(unit, rd)
int unit;
struct rd_conf *rd;
{
struct ramd_info *ri;
if(unit >= RAMD_NDEV)
return;
ri = &rd_info[unit];
if (rd->rd_type != RD_UNCONFIGURED)
return; /* Only configure once */
rd->rd_addr = malloc(ri->ramd_size, M_DEVBUF, M_WAITOK);
rd->rd_size = ri->ramd_size;
if(rd->rd_addr == NULL)
return;
if(ri->ramd_flag & RAMD_LOAD) {
if (loaddisk(rd, ri->ramd_dev, curproc)) {
free(rd->rd_addr, M_DEVBUF);
rd->rd_addr = NULL;
return;
}
}
rd->rd_type = RD_KMEM_ALLOCATED;
}
static int
loaddisk(rd, ld_dev, proc)
struct rd_conf *rd;
dev_t ld_dev;
struct proc *proc;
{
struct buf buf;
int error;
struct bdevsw *bdp = &bdevsw[major(ld_dev)];
struct disklabel dl;
struct read_info rs;
/*
* Initialize our buffer header:
*/
buf.b_actf = NULL;
buf.b_rcred = buf.b_wcred = proc->p_ucred;
buf.b_vnbufs.le_next = NOLIST;
buf.b_flags = B_BUSY;
buf.b_dev = ld_dev;
buf.b_error = 0;
buf.b_proc = proc;
/*
* Setup read_info:
*/
rs.bp = &buf;
rs.nbytes = rd->rd_size;
rs.offset = 0;
rs.bufp = rd->rd_addr;
rs.ebufp = rd->rd_addr + rd->rd_size;
rs.chunk = RAMD_CHUNK;
rs.media_sz = rd->rd_size;
rs.strat = bdp->d_strategy;
/*
* Open device and try to get some statistics.
*/
if((error = bdp->d_open(ld_dev, FREAD | FNONBLOCK, 0, proc)) != 0)
return(error);
if(bdp->d_ioctl(ld_dev, DIOCGDINFO, (caddr_t)&dl, FREAD, proc) == 0) {
/* Read on a cylinder basis */
rs.chunk = dl.d_secsize * dl.d_secpercyl;
rs.media_sz = dl.d_secperunit * dl.d_secsize;
}
#ifdef support_compression
if(ri->ramd_flag & RAMD_LCOMP)
error = decompress(cpy_uncompressed, rd_compressed, &rs);
else
#endif /* support_compression */
error = ramd_norm_read(&rs);
bdp->d_close(ld_dev,FREAD | FNONBLOCK, 0, proc);
return(error);
}
static int
ramd_norm_read(rsp)
struct read_info *rsp;
{
long bytes_left;
int done, error;
struct buf *bp;
int s;
int dotc = 0;
bytes_left = rsp->nbytes;
bp = rsp->bp;
error = 0;
while(bytes_left > 0) {
s = splbio();
bp->b_flags = B_BUSY | B_PHYS | B_READ;
splx(s);
bp->b_blkno = btodb(rsp->offset);
bp->b_bcount = rsp->chunk;
bp->b_data = rsp->bufp;
/* Initiate read */
(*rsp->strat)(bp);
/* Wait for results */
s = splbio();
while ((bp->b_flags & B_DONE) == 0)
tsleep((caddr_t) bp, PRIBIO + 1, "ramd_norm_read", 0);
if (bp->b_flags & B_ERROR)
error = (bp->b_error ? bp->b_error : EIO);
splx(s);
/* Dot counter */
printf(".");
if(!(++dotc % 40))
printf("\n");
done = bp->b_bcount - bp->b_resid;
bytes_left -= done;
rsp->offset += done;
rsp->bufp += done;
if(error || !done)
break;
if((rsp->offset == rsp->media_sz) && (bytes_left != 0)) {
printf("\nInsert next media and hit any key...");
cngetc();
printf("\n");
rsp->offset = 0;
}
}
printf("\n");
return(error);
}
#ifdef support_compression
/*
* Functions supporting uncompression:
*/
/*
* Copy from the uncompression buffer to the ramdisk
*/
static int
cpy_uncompressed(buf, nbyte, rsp)
caddr_t buf;
struct read_info *rsp;
int nbyte;
{
if((rsp->bufp + nbyte) >= rsp->ebufp)
return(0);
bcopy(buf, rsp->bufp, nbyte);
rsp->bufp += nbyte;
return(0);
}
/*
* Read a maximum of 'nbyte' bytes into 'buf'.
*/
static int
rd_compressed(buf, nbyte, rsp)
caddr_t buf;
struct read_info *rsp;
int nbyte;
{
static int dotc = 0;
struct buf *bp;
int nread = 0;
int s;
int done, error;
error = 0;
bp = rsp->bp;
nbyte &= ~(DEV_BSIZE - 1);
while(nbyte > 0) {
s = splbio();
bp->b_flags = B_BUSY | B_PHYS | B_READ;
splx(s);
bp->b_blkno = btodb(rsp->offset);
bp->b_bcount = min(rsp->chunk, nbyte);
bp->b_data = buf;
/* Initiate read */
(*rsp->strat)(bp);
/* Wait for results */
s = splbio();
while ((bp->b_flags & B_DONE) == 0)
tsleep((caddr_t) bp, PRIBIO + 1, "ramd_norm_read", 0);
if (bp->b_flags & B_ERROR)
error = (bp->b_error ? bp->b_error : EIO);
splx(s);
/* Dot counter */
printf(".");
if(!(++dotc % 40))
printf("\n");
done = bp->b_bcount - bp->b_resid;
nbyte -= done;
nread += done;
rsp->offset += done;
if(error || !done)
break;
if((rsp->offset == rsp->media_sz) && (nbyte != 0)) {
if(rsp->offset == rsp->media_sz) {
printf("\nInsert next media and hit any key...");
if(cngetc() != '\n')
printf("\n");
rsp->offset = 0;
}
}
s = splbio();
splx(s);
return(nread);
}
#endif /* support_compression */