/* * Copyright 1993 by Holger Veit (data part) * Copyright 1993 by Brian Moore (audio part) * CHANGES Copyright 1993 Gary Clark II (gclarkii@freefall.cdrom.com) * 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 software was developed by Holger Veit and Brian Moore * for use with "386BSD" and similar operating systems. * "Similar operating systems" includes mainly non-profit oriented * systems for research and education, including but not restricted to * "NetBSD", "FreeBSD", "Mach" (by CMU). * 4. Neither the name of the developer(s) nor the name "386BSD" * may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``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 DEVELOPER(S) 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. * * $Id: mcd.c,v 1.2 1993/11/17 12:22:50 cgd Exp $ */ static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore"; #include "mcd.h" #if NMCD > 0 #include "types.h" #include "param.h" #include "systm.h" #include "conf.h" #include "file.h" #include "buf.h" #include "stat.h" #include "uio.h" #include "ioctl.h" #include "cdio.h" #include "errno.h" #include "dkbad.h" #include "disklabel.h" #include "i386/isa/isa.h" #include "i386/isa/isa_device.h" #include "mcdreg.h" /* user definable options */ /*#define MCD_TO_WARNING_ON*/ /* define to get timeout messages */ /*#define MCDMINI*/ /* define for a mini configuration for boot kernel */ #ifdef MCDMINI #define MCD_TRACE(fmt,a,b,c,d) #ifdef MCD_TO_WARNING_ON #undef MCD_TO_WARNING_ON #endif #else #define MCD_TRACE(fmt,a,b,c,d) {if (mcd_data[unit].debug) {printf("mcd%d st=%02x: ",unit,mcd_data[unit].status); printf(fmt,a,b,c,d);}} #endif #define mcd_part(dev) ((minor(dev)) & 7) #define mcd_unit(dev) (((minor(dev)) & 0x38) >> 3) #define mcd_phys(dev) (((minor(dev)) & 0x40) >> 6) #define RAW_PART 3 /* flags */ #define MCDOPEN 0x0001 /* device opened */ #define MCDVALID 0x0002 /* parameters loaded */ #define MCDINIT 0x0004 /* device is init'd */ #define MCDWAIT 0x0008 /* waiting for something */ #define MCDLABEL 0x0010 /* label is read */ #define MCDPROBING 0x0020 /* probing */ #define MCDREADRAW 0x0040 /* read raw mode (2352 bytes) */ #define MCDVOLINFO 0x0080 /* already read volinfo */ #define MCDTOC 0x0100 /* already read toc */ #define MCDMBXBSY 0x0200 /* local mbx is busy */ /* status */ #define MCDAUDIOBSY MCD_ST_AUDIOBSY /* playing audio */ #define MCDDSKCHNG MCD_ST_DSKCHNG /* sensed change of disk */ #define MCDDSKIN MCD_ST_DSKIN /* sensed disk in drive */ #define MCDDOOROPEN MCD_ST_DOOROPEN /* sensed door open */ /* toc */ #define MCD_MAXTOCS 104 /* from the Linux driver */ #define MCD_LASTPLUS1 170 /* special toc entry */ struct mcd_mbx { short unit; short port; short retry; short nblk; int sz; u_long skip; struct buf *bp; int p_offset; short count; }; struct mcd_data { short config; short flags; short status; int blksize; u_long disksize; int iobase; struct disklabel dlabel; int partflags[MAXPARTITIONS]; int openflags; struct mcd_volinfo volinfo; #ifndef MCDMINI struct mcd_qchninfo toc[MCD_MAXTOCS]; short audio_status; struct mcd_read2 lastpb; #endif short debug; struct buf head; /* head of buf queue */ struct mcd_mbx mbx; } mcd_data[NMCD]; /* reader state machine */ #define MCD_S_BEGIN 0 #define MCD_S_BEGIN1 1 #define MCD_S_WAITSTAT 2 #define MCD_S_WAITMODE 3 #define MCD_S_WAITREAD 4 /* prototypes */ int mcdopen(dev_t dev); int mcdclose(dev_t dev); int mcdstrategy(struct buf *bp); int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags); int mcdsize(dev_t dev); static void mcd_done(struct mcd_mbx *mbx); static void mcd_start(int unit); static int mcd_getdisklabel(int unit); static void mcd_configure(struct mcd_data *cd); static int mcd_get(int unit, char *buf, int nmax); static void mcd_setflags(int unit,struct mcd_data *cd); static int mcd_getstat(int unit,int sflg); static int mcd_send(int unit, int cmd,int nretrys); static int bcd2bin(bcd_t b); static bcd_t bin2bcd(int b); static void hsg2msf(int hsg, bcd_t *msf); static int msf2hsg(bcd_t *msf); static int mcd_volinfo(int unit); static int mcd_waitrdy(int port,int dly); static void mcd_doread(int state, struct mcd_mbx *mbxin); #ifndef MCDMINI static int mcd_setmode(int unit, int mode); static int mcd_getqchan(int unit, struct mcd_qchninfo *q); static int mcd_subchan(int unit, struct ioc_read_subchannel *sc); static int mcd_toc_header(int unit, struct ioc_toc_header *th); static int mcd_read_toc(int unit); static int mcd_toc_entry(int unit, struct ioc_read_toc_entry *te); static int mcd_stop(int unit); static int mcd_playtracks(int unit, struct ioc_play_track *pt); static int mcd_play(int unit, struct mcd_read2 *pb); static int mcd_pause(int unit); static int mcd_resume(int unit); #endif extern int hz; extern int mcd_probe(struct isa_device *dev); extern int mcd_attach(struct isa_device *dev); struct isa_driver mcddriver = { mcd_probe, mcd_attach, "mcd" }; #define mcd_put(port,byte) outb(port,byte) #define MCD_RETRYS 5 #define MCD_RDRETRYS 8 #define MCDBLK 2048 /* for cooked mode */ #define MCDRBLK 2352 /* for raw mode */ /* several delays */ #define RDELAY_WAITSTAT 300 #define RDELAY_WAITMODE 300 #define RDELAY_WAITREAD 800 #define DELAY_STATUS 10000l /* 10000 * 1us */ #define DELAY_GETREPLY 200000l /* 200000 * 2us */ #define DELAY_SEEKREAD 20000l /* 20000 * 1us */ #define mcd_delay DELAY int mcd_attach(struct isa_device *dev) { struct mcd_data *cd = mcd_data + dev->id_unit; int i; cd->iobase = dev->id_iobase; cd->flags |= MCDINIT; cd->openflags = 0; for (i=0; ipartflags[i] = 0; #ifdef NOTYET /* wire controller for interrupts and dma */ mcd_configure(cd); #endif return 1; } int mcdopen(dev_t dev) { int unit,part,phys; struct mcd_data *cd; unit = mcd_unit(dev); if (unit >= NMCD) return ENXIO; cd = mcd_data + unit; part = mcd_part(dev); phys = mcd_phys(dev); /* not initialized*/ if (!(cd->flags & MCDINIT)) return ENXIO; /* invalidated in the meantime? mark all open part's invalid */ if (!(cd->flags & MCDVALID) && cd->openflags) return ENXIO; if (mcd_getstat(unit,1) < 0) return ENXIO; /* XXX get a default disklabel */ mcd_getdisklabel(unit); if (mcdsize(dev) < 0) { printf("mcd%d: failed to get disk size\n",unit); return ENXIO; } else cd->flags |= MCDVALID; MCD_TRACE("open: partition=%d, disksize = %d, blksize=%d\n", part,cd->disksize,cd->blksize,0); if (part == RAW_PART || (part < cd->dlabel.d_npartitions && cd->dlabel.d_partitions[part].p_fstype != FS_UNUSED)) { cd->partflags[part] |= MCDOPEN; cd->openflags |= (1<partflags[part] |= MCDREADRAW; return 0; } return ENXIO; } int mcdclose(dev_t dev) { int unit,part,phys; struct mcd_data *cd; unit = mcd_unit(dev); if (unit >= NMCD) return ENXIO; cd = mcd_data + unit; part = mcd_part(dev); phys = mcd_phys(dev); if (!(cd->flags & MCDINIT)) return ENXIO; mcd_getstat(unit,1); /* get status */ /* close channel */ cd->partflags[part] &= ~(MCDOPEN|MCDREADRAW); cd->openflags &= ~(1<b_dev); cd = mcd_data + unit; /* test validity */ /*MCD_TRACE("strategy: buf=0x%lx, unit=%ld, block#=%ld bcount=%ld\n", bp,unit,bp->b_blkno,bp->b_bcount);*/ if (unit >= NMCD || bp->b_blkno < 0) { printf("mcdstrategy: unit = %d, blkno = %d, bcount = %d\n", unit, bp->b_blkno, bp->b_bcount); pg("mcd: mcdstratregy failure"); bp->b_error = EINVAL; bp->b_flags |= B_ERROR; goto bad; } /* if device invalidated (e.g. media change, door open), error */ if (!(cd->flags & MCDVALID)) { MCD_TRACE("strategy: drive not valid\n",0,0,0,0); bp->b_error = EIO; goto bad; } /* read only */ if (!(bp->b_flags & B_READ)) { bp->b_error = EROFS; goto bad; } /* no data to read */ if (bp->b_bcount == 0) goto done; /* for non raw access, check partition limits */ if (mcd_part(bp->b_dev) != RAW_PART) { if (!(cd->flags & MCDLABEL)) { bp->b_error = EIO; goto bad; } /* adjust transfer if necessary */ if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) { goto done; } } /* queue it */ qp = &cd->head; s = splbio(); disksort(qp,bp); splx(s); /* now check whether we can perform processing */ mcd_start(unit); return; bad: bp->b_flags |= B_ERROR; done: bp->b_resid = bp->b_bcount; biodone(bp); return; } static void mcd_start(int unit) { struct mcd_data *cd = mcd_data + unit; struct buf *bp, *qp = &cd->head; struct partition *p; int part; register s = splbio(); if (cd->flags & MCDMBXBSY) return; if ((bp = qp->b_actf) != 0) { /* block found to process, dequeue */ /*MCD_TRACE("mcd_start: found block bp=0x%x\n",bp,0,0,0);*/ qp->b_actf = bp->av_forw; splx(s); } else { /* nothing to do */ splx(s); return; } /* changed media? */ if (!(cd->flags & MCDVALID)) { MCD_TRACE("mcd_start: drive not valid\n",0,0,0,0); return; } p = cd->dlabel.d_partitions + mcd_part(bp->b_dev); cd->flags |= MCDMBXBSY; cd->mbx.unit = unit; cd->mbx.port = cd->iobase; cd->mbx.retry = MCD_RETRYS; cd->mbx.bp = bp; cd->mbx.p_offset = p->p_offset; /* calling the read routine */ mcd_doread(MCD_S_BEGIN,&(cd->mbx)); /* triggers mcd_start, when successful finished */ return; } int mcdioctl(dev_t dev, int cmd, caddr_t addr, int flags) { struct mcd_data *cd; int unit,part; unit = mcd_unit(dev); part = mcd_part(dev); cd = mcd_data + unit; #ifdef MCDMINI return ENOTTY; #else if (!(cd->flags & MCDVALID)) return EIO; MCD_TRACE("ioctl called 0x%x\n",cmd,0,0,0); switch (cmd) { case DIOCSBAD: return EINVAL; case DIOCGDINFO: case DIOCGPART: case DIOCWDINFO: case DIOCSDINFO: case DIOCWLABEL: return ENOTTY; case CDIOCPLAYTRACKS: return mcd_playtracks(unit, (struct ioc_play_track *) addr); case CDIOCPLAYBLOCKS: return mcd_play(unit, (struct mcd_read2 *) addr); case CDIOCREADSUBCHANNEL: return mcd_subchan(unit, (struct ioc_read_subchannel *) addr); case CDIOREADTOCHEADER: return mcd_toc_header(unit, (struct ioc_toc_header *) addr); case CDIOREADTOCENTRYS: return mcd_toc_entry(unit, (struct ioc_read_toc_entry *) addr); case CDIOCSETPATCH: case CDIOCGETVOL: case CDIOCSETVOL: case CDIOCSETMONO: case CDIOCSETSTERIO: case CDIOCSETMUTE: case CDIOCSETLEFT: case CDIOCSETRIGHT: return EINVAL; case CDIOCRESUME: return mcd_resume(unit); case CDIOCPAUSE: return mcd_pause(unit); case CDIOCSTART: return EINVAL; case CDIOCSTOP: return mcd_stop(unit); case CDIOCEJECT: return EINVAL; case CDIOCSETDEBUG: cd->debug = 1; return 0; case CDIOCCLRDEBUG: cd->debug = 0; return 0; case CDIOCRESET: return EINVAL; default: return ENOTTY; } /*NOTREACHED*/ #endif /*!MCDMINI*/ } /* this could have been taken from scsi/cd.c, but it is not clear * whether the scsi cd driver is linked in */ static int mcd_getdisklabel(int unit) { struct mcd_data *cd = mcd_data + unit; if (cd->flags & MCDLABEL) return -1; bzero(&cd->dlabel,sizeof(struct disklabel)); strncpy(cd->dlabel.d_typename,"Mitsumi CD ROM ",16); strncpy(cd->dlabel.d_packname,"unknown ",16); cd->dlabel.d_secsize = cd->blksize; cd->dlabel.d_nsectors = 100; cd->dlabel.d_ntracks = 1; cd->dlabel.d_ncylinders = (cd->disksize/100)+1; cd->dlabel.d_secpercyl = 100; cd->dlabel.d_secperunit = cd->disksize; cd->dlabel.d_rpm = 300; cd->dlabel.d_interleave = 1; cd->dlabel.d_flags = D_REMOVABLE; cd->dlabel.d_npartitions= 1; cd->dlabel.d_partitions[0].p_offset = 0; cd->dlabel.d_partitions[0].p_size = cd->disksize; cd->dlabel.d_partitions[0].p_fstype = 9; cd->dlabel.d_magic = DISKMAGIC; cd->dlabel.d_magic2 = DISKMAGIC; cd->dlabel.d_checksum = dkcksum(&cd->dlabel); cd->flags |= MCDLABEL; return 0; } int mcdsize(dev_t dev) { int size; int unit = mcd_unit(dev); struct mcd_data *cd = mcd_data + unit; if (mcd_volinfo(unit) >= 0) { cd->blksize = MCDBLK; size = msf2hsg(cd->volinfo.vol_msf); cd->disksize = size * (MCDBLK/DEV_BSIZE); return 0; } return -1; } /*************************************************************** * lower level of driver starts here **************************************************************/ #ifdef NOTDEF static char irqs[] = { 0x00,0x00,0x10,0x20,0x00,0x30,0x00,0x00, 0x00,0x10,0x40,0x50,0x00,0x00,0x00,0x00 }; static char drqs[] = { 0x00,0x01,0x00,0x03,0x00,0x05,0x06,0x07, }; #endif static void mcd_configure(struct mcd_data *cd) { outb(cd->iobase+mcd_config,cd->config); } /* check if there is a cdrom */ /* Heavly hacked by gclarkii@sugar.neosoft.com */ int mcd_probe(struct isa_device *dev) { int port = dev->id_iobase; int unit = dev->id_unit; int i; int st; int check; int junk; mcd_data[unit].flags = MCDPROBING; #ifdef NOTDEF /* get irq/drq configuration word */ mcd_data[unit].config = irqs[dev->id_irq]; /* | drqs[dev->id_drq];*/ #else mcd_data[unit].config = 0; #endif /* send a reset */ outb(port+MCD_FLAGS,0); DELAY(100000); /* get any pending status and throw away...*/ for (i=10; i != 0; i--) { inb(port+MCD_DATA); } DELAY(1000); outb(port+MCD_DATA,MCD_CMDGETSTAT); /* Send get status command */ /* Loop looking for avail of status */ /* XXX May have to increase for fast machinces */ for (i = 1000; i != 0; i--) { if ((inb(port+MCD_FLAGS) & 0xF ) == STATUS_AVAIL) { break; } DELAY(10); } /* get status */ if (i == 0) { #ifdef DEBUG printf ("Mitsumi drive NOT detected\n"); #endif return 0; } /* * The following code uses the 0xDC command, it returns a M from the * second byte and a number in the third. Does anyone know what the * number is for? Better yet, how about someone thats REAL good in * i80x86 asm looking at the Dos driver... Most of this info came * from a friend of mine spending a whole weekend..... */ DELAY (2000); outb(port+MCD_DATA,MCD_CMDCONTINFO); for (i = 0; i < 100000; i++) { if ((inb(port+MCD_FLAGS) & 0xF) == STATUS_AVAIL) break; } if (i > 100000) { #ifdef DEBUG printf ("Mitsumi drive error\n"); #endif return 0; } DELAY (40000); st = inb(port+MCD_DATA); DELAY (500); check = inb(port+MCD_DATA); DELAY (500); junk = inb(port+MCD_DATA); /* What is byte used for?!?!? */ if (check = 'M') { #ifdef DEBUG printf("Mitsumi drive detected\n"); #endif return 4; } else { printf("Mitsumi drive NOT detected\n"); printf("Mitsumi drive error\n"); return 0; } } static int mcd_waitrdy(int port,int dly) { int i; /* wait until xfer port senses data ready */ for (i=0; iiobase; /* wait data to become ready */ if (mcd_waitrdy(port,dly)<0) { #ifdef MCD_TO_WARNING_ON printf("mcd%d: timeout getreply\n",unit); #endif return -1; } /* get the data */ return inb(port+mcd_status) & 0xFF; } static int mcd_getstat(int unit,int sflg) { int i; struct mcd_data *cd = mcd_data + unit; int port = cd->iobase; /* get the status */ if (sflg) outb(port+mcd_command, MCD_CMDGETSTAT); i = mcd_getreply(unit,DELAY_GETREPLY); if (i<0) return -1; cd->status = i; mcd_setflags(unit,cd); return cd->status; } static void mcd_setflags(int unit, struct mcd_data *cd) { /* check flags */ if (cd->status & (MCDDSKCHNG|MCDDOOROPEN)) { MCD_TRACE("getstat: sensed DSKCHNG or DOOROPEN\n",0,0,0,0); cd->flags &= ~MCDVALID; } #ifndef MCDMINI if (cd->status & MCDAUDIOBSY) cd->audio_status = CD_AS_PLAY_IN_PROGRESS; else if (cd->audio_status == CD_AS_PLAY_IN_PROGRESS) cd->audio_status = CD_AS_PLAY_COMPLETED; #endif } static int mcd_get(int unit, char *buf, int nmax) { int port = mcd_data[unit].iobase; int i,k; for (i=0; i> 4) * 10 + (b & 15); } static bcd_t bin2bcd(int b) { return ((b / 10) << 4) | (b % 10); } static void hsg2msf(int hsg, bcd_t *msf) { hsg += 150; M_msf(msf) = bin2bcd(hsg / 4500); hsg %= 4500; S_msf(msf) = bin2bcd(hsg / 75); F_msf(msf) = bin2bcd(hsg % 75); } static int msf2hsg(bcd_t *msf) { return (bcd2bin(M_msf(msf)) * 60 + bcd2bin(S_msf(msf))) * 75 + bcd2bin(F_msf(msf)) - 150; } static int mcd_volinfo(int unit) { struct mcd_data *cd = mcd_data + unit; int i; /*MCD_TRACE("mcd_volinfo: enter\n",0,0,0,0);*/ /* Get the status, in case the disc has been changed */ if (mcd_getstat(unit, 1) < 0) return EIO; /* Just return if we already have it */ if (cd->flags & MCDVOLINFO) return 0; /* send volume info command */ if (mcd_send(unit,MCD_CMDGETVOLINFO,MCD_RETRYS) < 0) return -1; /* get data */ if (mcd_get(unit,(char*) &cd->volinfo,sizeof(struct mcd_volinfo)) < 0) { printf("mcd%d: mcd_volinfo: error read data\n",unit); return -1; } if (cd->volinfo.trk_low != 0 || cd->volinfo.trk_high != 0) { cd->flags |= MCDVOLINFO; /* volinfo is OK */ return 0; } return -1; } int mcdintr(unit) { int port = mcd_data[unit].iobase; u_int i; MCD_TRACE("stray interrupt xfer=0x%x\n",inb(port+mcd_xfer),0,0,0); /* just read out status and ignore the rest */ if ((inb(port+mcd_xfer)&0xFF) != 0xFF) { i = inb(port+mcd_status); } } /* state machine to process read requests * initialize with MCD_S_BEGIN: calculate sizes, and read status * MCD_S_WAITSTAT: wait for status reply, set mode * MCD_S_WAITMODE: waits for status reply from set mode, set read command * MCD_S_WAITREAD: wait for read ready, read data */ static struct mcd_mbx *mbxsave; static void mcd_doread(int state, struct mcd_mbx *mbxin) { struct mcd_mbx *mbx = (state!=MCD_S_BEGIN) ? mbxsave : mbxin; int unit = mbx->unit; int port = mbx->port; struct buf *bp = mbx->bp; struct mcd_data *cd = mcd_data + unit; int rm,i,k; struct mcd_read2 rbuf; int blknum; caddr_t addr; loop: switch (state) { case MCD_S_BEGIN: mbx = mbxsave = mbxin; case MCD_S_BEGIN1: /* get status */ outb(port+mcd_command, MCD_CMDGETSTAT); mbx->count = RDELAY_WAITSTAT; timeout((timeout_t) mcd_doread,(caddr_t) MCD_S_WAITSTAT,hz/100); return; case MCD_S_WAITSTAT: untimeout((timeout_t) mcd_doread,(caddr_t) MCD_S_WAITSTAT); if (mbx->count-- >= 0) { if (inb(port+mcd_xfer) & MCD_ST_BUSY) { timeout((timeout_t) mcd_doread, (caddr_t) MCD_S_WAITSTAT,hz/100); return; } mcd_setflags(unit,cd); MCD_TRACE("got WAITSTAT delay=%d\n",RDELAY_WAITSTAT-mbx->count,0,0,0); /* reject, if audio active */ if (cd->status & MCDAUDIOBSY) { printf("mcd%d: audio is active\n",unit); goto readerr; } /* to check for raw/cooked mode */ if (cd->flags & MCDREADRAW) { rm = MCD_MD_RAW; mbx->sz = MCDRBLK; } else { rm = MCD_MD_COOKED; mbx->sz = cd->blksize; } mbx->count = RDELAY_WAITMODE; mcd_put(port+mcd_command, MCD_CMDSETMODE); mcd_put(port+mcd_command, rm); timeout((timeout_t) mcd_doread, (caddr_t) MCD_S_WAITMODE,hz/100); return; } else { #ifdef MCD_TO_WARNING_ON printf("mcd%d: timeout getstatus\n",unit); #endif goto readerr; } case MCD_S_WAITMODE: untimeout((timeout_t) mcd_doread,(caddr_t) MCD_S_WAITMODE); if (mbx->count-- < 0) { #ifdef MCD_TO_WARNING_ON printf("mcd%d: timeout set mode\n",unit); #endif goto readerr; } if (inb(port+mcd_xfer) & MCD_ST_BUSY) { timeout((timeout_t) mcd_doread, (caddr_t) MCD_S_WAITMODE,hz/100); return; } mcd_setflags(unit,cd); MCD_TRACE("got WAITMODE delay=%d\n",RDELAY_WAITMODE-mbx->count,0,0,0); /* for first block */ mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; mbx->skip = 0; nextblock: blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) + mbx->p_offset + mbx->skip/mbx->sz; MCD_TRACE("mcd_doread: read blknum=%d for bp=0x%x\n",blknum,bp,0,0); /* build parameter block */ hsg2msf(blknum,rbuf.start_msf); /* send the read command */ mcd_put(port+mcd_command,MCD_CMDREAD2); mcd_put(port+mcd_command,rbuf.start_msf[0]); mcd_put(port+mcd_command,rbuf.start_msf[1]); mcd_put(port+mcd_command,rbuf.start_msf[2]); mcd_put(port+mcd_command,0); mcd_put(port+mcd_command,0); mcd_put(port+mcd_command,1); mbx->count = RDELAY_WAITREAD; timeout((timeout_t) mcd_doread,(caddr_t) MCD_S_WAITREAD,hz/100); return; case MCD_S_WAITREAD: untimeout((timeout_t) mcd_doread,(caddr_t) MCD_S_WAITREAD); if (mbx->count-- > 0) { k = inb(port+mcd_xfer); if ((k & 2)==0) { MCD_TRACE("got data delay=%d\n",RDELAY_WAITREAD-mbx->count,0,0,0); /* data is ready */ addr = bp->b_un.b_addr + mbx->skip; outb(port+mcd_ctl2,0x04); /* XXX */ for (i=0; isz; i++) *addr++ = inb(port+mcd_rdata); outb(port+mcd_ctl2,0x0c); /* XXX */ if (--mbx->nblk > 0) { mbx->skip += mbx->sz; goto nextblock; } /* return buffer */ bp->b_resid = 0; biodone(bp); cd->flags &= ~MCDMBXBSY; mcd_start(mbx->unit); return; } if ((k & 4)==0) mcd_getstat(unit,0); timeout((timeout_t) mcd_doread, (caddr_t) MCD_S_WAITREAD,hz/100); return; } else { #ifdef MCD_TO_WARNING_ON printf("mcd%d: timeout read data\n",unit); #endif goto readerr; } } readerr: if (mbx->retry-- > 0) { #ifdef MCD_TO_WARNING_ON printf("mcd%d: retrying\n",unit); #endif state = MCD_S_BEGIN1; goto loop; } /* invalidate the buffer */ bp->b_flags |= B_ERROR; bp->b_resid = bp->b_bcount; biodone(bp); mcd_start(mbx->unit); return; #ifdef NOTDEF printf("mcd%d: unit timeout, resetting\n",mbx->unit); outb(mbx->port+mcd_reset,MCD_CMDRESET); DELAY(300000); (void)mcd_getstat(mbx->unit,1); (void)mcd_getstat(mbx->unit,1); /*cd->status &= ~MCDDSKCHNG; */ cd->debug = 1; /* preventive set debug mode */ #endif } #ifndef MCDMINI static int mcd_setmode(int unit, int mode) { struct mcd_data *cd = mcd_data + unit; int port = cd->iobase; int retry; printf("mcd%d: setting mode to %d\n", unit, mode); for(retry=0; retrylen = msf2hsg(cd->volinfo.vol_msf); th->starting_track = bcd2bin(cd->volinfo.trk_low); th->ending_track = bcd2bin(cd->volinfo.trk_high); return 0; } static int mcd_read_toc(int unit) { struct mcd_data *cd = mcd_data + unit; struct ioc_toc_header th; struct mcd_qchninfo q; int rc, trk, idx, retry; /* Only read TOC if needed */ if (cd->flags & MCDTOC) return 0; printf("mcd%d: reading toc header\n", unit); if (mcd_toc_header(unit, &th) != 0) return ENXIO; printf("mcd%d: stopping play\n", unit); if ((rc=mcd_stop(unit)) != 0) return rc; /* try setting the mode twice */ if (mcd_setmode(unit, MCD_MD_TOC) != 0) return EIO; if (mcd_setmode(unit, MCD_MD_TOC) != 0) return EIO; printf("mcd%d: get_toc reading qchannel info\n",unit); for(trk=th.starting_track; trk<=th.ending_track; trk++) cd->toc[trk].idx_no = 0; trk = th.ending_track - th.starting_track + 1; for(retry=0; retry<300 && trk>0; retry++) { if (mcd_getqchan(unit, &q) < 0) break; idx = bcd2bin(q.idx_no); if (idx>0 && idx < MCD_MAXTOCS && q.trk_no==0) if (cd->toc[idx].idx_no == 0) { cd->toc[idx] = q; trk--; } } if (mcd_setmode(unit, MCD_MD_COOKED) != 0) return EIO; if (trk != 0) return ENXIO; /* add a fake last+1 */ idx = th.ending_track + 1; cd->toc[idx].ctrl_adr = cd->toc[idx-1].ctrl_adr; cd->toc[idx].trk_no = 0; cd->toc[idx].idx_no = 0xAA; cd->toc[idx].hd_pos_msf[0] = cd->volinfo.vol_msf[0]; cd->toc[idx].hd_pos_msf[1] = cd->volinfo.vol_msf[1]; cd->toc[idx].hd_pos_msf[2] = cd->volinfo.vol_msf[2]; cd->flags |= MCDTOC; return 0; } static int mcd_toc_entry(int unit, struct ioc_read_toc_entry *te) { struct mcd_data *cd = mcd_data + unit; struct ret_toc { struct ioc_toc_header th; struct cd_toc_entry rt; } ret_toc; struct ioc_toc_header th; int rc, i; /* Make sure we have a valid toc */ if ((rc=mcd_read_toc(unit)) != 0) return rc; /* find the toc to copy*/ i = te->starting_track; if (i == MCD_LASTPLUS1) i = bcd2bin(cd->volinfo.trk_high) + 1; /* verify starting track */ if (i < bcd2bin(cd->volinfo.trk_low) || i > bcd2bin(cd->volinfo.trk_high)+1) return EINVAL; /* do we have room */ if (te->data_len < sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry)) return EINVAL; /* Copy the toc header */ if (mcd_toc_header(unit, &th) < 0) return EIO; ret_toc.th = th; /* copy the toc data */ ret_toc.rt.control = cd->toc[i].ctrl_adr; ret_toc.rt.addr_type = te->address_format; ret_toc.rt.track = i; if (te->address_format == CD_MSF_FORMAT) { ret_toc.rt.addr[1] = cd->toc[i].hd_pos_msf[0]; ret_toc.rt.addr[2] = cd->toc[i].hd_pos_msf[1]; ret_toc.rt.addr[3] = cd->toc[i].hd_pos_msf[2]; } /* copy the data back */ copyout(&ret_toc, te->data, sizeof(struct cd_toc_entry) + sizeof(struct ioc_toc_header)); return 0; } static int mcd_stop(int unit) { struct mcd_data *cd = mcd_data + unit; if (mcd_send(unit, MCD_CMDSTOPAUDIO, MCD_RETRYS) < 0) return ENXIO; cd->audio_status = CD_AS_PLAY_COMPLETED; return 0; } static int mcd_getqchan(int unit, struct mcd_qchninfo *q) { struct mcd_data *cd = mcd_data + unit; if (mcd_send(unit, MCD_CMDGETQCHN, MCD_RETRYS) < 0) return -1; if (mcd_get(unit, (char *) q, sizeof(struct mcd_qchninfo)) < 0) return -1; if (cd->debug) printf("mcd%d: qchannel ctl=%d, t=%d, i=%d, ttm=%d:%d.%d dtm=%d:%d.%d\n", unit, q->ctrl_adr, q->trk_no, q->idx_no, q->trk_size_msf[0], q->trk_size_msf[1], q->trk_size_msf[2], q->trk_size_msf[0], q->trk_size_msf[1], q->trk_size_msf[2]); return 0; } static int mcd_subchan(int unit, struct ioc_read_subchannel *sc) { struct mcd_data *cd = mcd_data + unit; struct mcd_qchninfo q; struct cd_sub_channel_info data; printf("mcd%d: subchan af=%d, df=%d\n", unit, sc->address_format, sc->data_format); if (sc->address_format != CD_MSF_FORMAT) return EIO; if (sc->data_format != CD_CURRENT_POSITION) return EIO; if (mcd_getqchan(unit, &q) < 0) return EIO; data.header.audio_status = cd->audio_status; data.what.position.data_format = CD_MSF_FORMAT; data.what.position.track_number = bcd2bin(q.trk_no); if (copyout(&data, sc->data, sizeof(struct cd_sub_channel_info))!=0) return EFAULT; return 0; } static int mcd_playtracks(int unit, struct ioc_play_track *pt) { struct mcd_data *cd = mcd_data + unit; struct mcd_read2 pb; int a = pt->start_track; int z = pt->end_track; int rc; if ((rc = mcd_read_toc(unit)) != 0) return rc; printf("mcd%d: playtracks from %d:%d to %d:%d\n", unit, a, pt->start_index, z, pt->end_index); if (a < cd->volinfo.trk_low || a > cd->volinfo.trk_high || a > z || z < cd->volinfo.trk_low || z > cd->volinfo.trk_high) return EINVAL; pb.start_msf[0] = cd->toc[a].hd_pos_msf[0]; pb.start_msf[1] = cd->toc[a].hd_pos_msf[1]; pb.start_msf[2] = cd->toc[a].hd_pos_msf[2]; pb.end_msf[0] = cd->toc[z+1].hd_pos_msf[0]; pb.end_msf[1] = cd->toc[z+1].hd_pos_msf[1]; pb.end_msf[2] = cd->toc[z+1].hd_pos_msf[2]; return mcd_play(unit, &pb); } static int mcd_play(int unit, struct mcd_read2 *pb) { struct mcd_data *cd = mcd_data + unit; int port = cd->iobase; int retry, st; cd->lastpb = *pb; for(retry=0; retrystart_msf[0]); outb(port+mcd_command, pb->start_msf[1]); outb(port+mcd_command, pb->start_msf[2]); outb(port+mcd_command, pb->end_msf[0]); outb(port+mcd_command, pb->end_msf[1]); outb(port+mcd_command, pb->end_msf[2]); if ((st=mcd_getstat(unit, 0)) != -1) break; } if (cd->debug) printf("mcd%d: mcd_play retry=%d, status=%d\n", unit, retry, st); if (st == -1) return ENXIO; cd->audio_status = CD_AS_PLAY_IN_PROGRESS; return 0; } static int mcd_pause(int unit) { struct mcd_data *cd = mcd_data + unit; struct mcd_qchninfo q; int rc; /* Verify current status */ if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { printf("mcd%d: pause attempted when not playing\n", unit); return EINVAL; } /* Get the current position */ if (mcd_getqchan(unit, &q) < 0) return EIO; /* Copy it into lastpb */ cd->lastpb.start_msf[0] = q.hd_pos_msf[0]; cd->lastpb.start_msf[1] = q.hd_pos_msf[1]; cd->lastpb.start_msf[2] = q.hd_pos_msf[2]; /* Stop playing */ if ((rc=mcd_stop(unit)) != 0) return rc; /* Set the proper status and exit */ cd->audio_status = CD_AS_PLAY_PAUSED; return 0; } static int mcd_resume(int unit) { struct mcd_data *cd = mcd_data + unit; if (cd->audio_status != CD_AS_PLAY_PAUSED) return EINVAL; return mcd_play(unit, &cd->lastpb); } #endif /*!MCDMINI*/ #endif /* NMCD > 0 */