/*- * Copyright (c) 1995 Mikael Hybsch * All rights reserved. * * Portions of this file are copied from mcd.c * which has the following copyrights: * * Copyright 1993 by Holger Veit (data part) * Copyright 1993 by Brian Moore (audio part) * Changes Copyright 1993 by Gary Clark II * Changes Copyright (C) 1994 by Andrew A. Chernov * * Rewrote probe routine to work on newer Mitsumi drives. * Additional changes (C) 1994 by Jordan K. Hubbard * * 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 * in this position and unchanged. * 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. The name of the author may not be used to endorse or promote products * derived from this software withough 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. * */ /* $Id: scd.c,v 1.28 1997/03/24 11:24:01 bde Exp $ */ /* Please send any comments to micke@dynas.se */ #define SCD_DEBUG 0 #include "scd.h" #if NSCD > 0 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef DEVFS #include #endif /*DEVFS*/ #include #include #include #include #define scd_part(dev) ((minor(dev)) & 7) #define scd_unit(dev) (((minor(dev)) & 0x38) >> 3) #define scd_phys(dev) (((minor(dev)) & 0x40) >> 6) #define RAW_PART 2 /* flags */ #define SCDOPEN 0x0001 /* device opened */ #define SCDVALID 0x0002 /* parameters loaded */ #define SCDINIT 0x0004 /* device is init'd */ #define SCDPROBING 0x0020 /* probing */ #define SCDTOC 0x0100 /* already read toc */ #define SCDMBXBSY 0x0200 /* local mbx is busy */ #define SCDSPINNING 0x0400 /* drive is spun up */ #define SCD_S_BEGIN 0 #define SCD_S_BEGIN1 1 #define SCD_S_WAITSTAT 2 #define SCD_S_WAITFIFO 3 #define SCD_S_WAITSPIN 4 #define SCD_S_WAITREAD 5 #define SCD_S_WAITPARAM 6 #define RDELAY_WAIT 300 #define RDELAY_WAITREAD 300 #define SCDBLKSIZE 2048 #ifdef SCD_DEBUG static int scd_debuglevel = SCD_DEBUG; # define XDEBUG(level, data) {if (scd_debuglevel >= level) printf data;} #else # define XDEBUG(level, data) #endif struct scd_mbx { short unit; short port; short retry; short nblk; int sz; u_long skip; struct buf *bp; int p_offset; short count; }; static struct scd_data { int iobase; char double_speed; char *name; short flags; int blksize; u_long disksize; struct disklabel dlabel; int openflag; struct { unsigned char adr :4; unsigned char ctl :4; /* xcdplayer needs this */ unsigned char start_msf[3]; } toc[MAX_TRACKS]; short first_track; short last_track; struct ioc_play_msf last_play; short audio_status; struct buf_queue_head head; /* head of buf queue */ struct scd_mbx mbx; #ifdef DEVFS void *ra_devfs_token; void *rc_devfs_token; void *a_devfs_token; void *c_devfs_token; #endif } scd_data[NSCD]; /* prototypes */ static void hsg2msf(int hsg, bcd_t *msf); static int msf2hsg(bcd_t *msf); static void process_attention(unsigned unit); static inline void write_control(unsigned port, unsigned data); static int waitfor_status_bits(int unit, int bits_set, int bits_clear); static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...); static void init_drive(unsigned unit); static int spin_up(unsigned unit); static int read_toc(dev_t dev); static int get_result(u_int unit, int result_len, u_char *result); static void print_error(int unit, int errcode); static void scd_start(int unit); static timeout_t scd_timeout; static void scd_doread(int state, struct scd_mbx *mbxin); static int scd_eject(int unit); static int scd_stop(int unit); static int scd_pause(int unit); static int scd_resume(int unit); static int scd_playtracks(int unit, struct ioc_play_track *pt); static int scd_playmsf(int unit, struct ioc_play_msf *msf); static int scd_play(int unit, struct ioc_play_msf *msf); static int scd_subchan(int unit, struct ioc_read_subchannel *sc); static int read_subcode(int unit, struct sony_subchannel_position_data *sc); /* for xcdplayer */ static int scd_toc_header(int unit, struct ioc_toc_header *th); static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te); #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ static int scd_probe(struct isa_device *dev); static int scd_attach(struct isa_device *dev); struct isa_driver scddriver = { scd_probe, scd_attach, "scd" }; static d_open_t scdopen; static d_close_t scdclose; static d_ioctl_t scdioctl; static d_strategy_t scdstrategy; #define CDEV_MAJOR 45 #define BDEV_MAJOR 16 static struct cdevsw scd_cdevsw; static struct bdevsw scd_bdevsw = { scdopen, scdclose, scdstrategy, scdioctl, /*16*/ nodump, nopsize, 0, "scd", &scd_cdevsw, -1 }; int scd_attach(struct isa_device *dev) { int unit = dev->id_unit; struct scd_data *cd = scd_data + unit; cd->iobase = dev->id_iobase; /* Already set by probe, but ... */ /* name filled in probe */ printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name); init_drive(dev->id_unit); cd->flags = SCDINIT; cd->audio_status = CD_AS_AUDIO_INVALID; TAILQ_INIT(&cd->head); #ifdef DEVFS cd->ra_devfs_token = devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, 0), DV_CHR, UID_ROOT, GID_OPERATOR, 0640, "rscd%da", unit); cd->rc_devfs_token = devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART), DV_CHR, UID_ROOT, GID_OPERATOR, 0640, "rscd%dc", unit); cd->a_devfs_token = devfs_add_devswf(&scd_bdevsw, dkmakeminor(unit, 0, 0), DV_BLK, UID_ROOT, GID_OPERATOR, 0640, "scd%da", unit); cd->c_devfs_token = devfs_add_devswf(&scd_bdevsw, dkmakeminor(unit, 0, RAW_PART), DV_BLK, UID_ROOT, GID_OPERATOR, 0640, "scd%dc", unit); #endif return 1; } static int scdopen(dev_t dev, int flags, int fmt, struct proc *p) { int unit,part,phys; int rc; struct scd_data *cd; unit = scd_unit(dev); if (unit >= NSCD) return ENXIO; cd = scd_data + unit; part = scd_part(dev); phys = scd_phys(dev); /* not initialized*/ if (!(cd->flags & SCDINIT)) return ENXIO; /* invalidated in the meantime? mark all open part's invalid */ if (cd->openflag) return ENXIO; XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS))); if ((rc = spin_up(unit)) != 0) { print_error(unit, rc); return EIO; } if (!(cd->flags & SCDTOC)) { int loop_count = 3; while (loop_count-- > 0 && (rc = read_toc(dev)) != 0) { if (rc == ERR_NOT_SPINNING) { rc = spin_up(unit); if (rc) { print_error(unit, rc);\ return EIO; } continue; } printf("scd%d: TOC read error 0x%x\n", unit, rc); return EIO; } } cd->openflag = 1; cd->flags |= SCDVALID; return 0; } static int scdclose(dev_t dev, int flags, int fmt, struct proc *p) { int unit,part,phys; struct scd_data *cd; unit = scd_unit(dev); if (unit >= NSCD) return ENXIO; cd = scd_data + unit; part = scd_part(dev); phys = scd_phys(dev); if (!(cd->flags & SCDINIT) || !cd->openflag) return ENXIO; if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { (void)send_cmd(unit, CMD_SPIN_DOWN, 0); cd->flags &= ~SCDSPINNING; } /* close channel */ cd->openflag = 0; return 0; } static void scdstrategy(struct buf *bp) { struct scd_data *cd; int s; int unit = scd_unit(bp->b_dev); cd = scd_data + unit; XDEBUG(2, ("scd%d: DEBUG: strategy: block=%ld, bcount=%ld\n", unit, bp->b_blkno, bp->b_bcount)); if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) { printf("scd%d: strategy failure: blkno = %ld, bcount = %ld\n", unit, bp->b_blkno, bp->b_bcount); bp->b_error = EINVAL; bp->b_flags |= B_ERROR; goto bad; } /* if device invalidated (e.g. media change, door open), error */ if (!(cd->flags & SCDVALID)) { printf("scd%d: media changed\n", unit); 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; if (!(cd->flags & SCDTOC)) { bp->b_error = EIO; goto bad; } /* adjust transfer if necessary */ if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) goto done; bp->b_pblkno = bp->b_blkno; bp->b_resid = 0; /* queue it */ s = splbio(); tqdisksort(&cd->head, bp); splx(s); /* now check whether we can perform processing */ scd_start(unit); return; bad: bp->b_flags |= B_ERROR; done: bp->b_resid = bp->b_bcount; biodone(bp); return; } static void scd_start(int unit) { struct scd_data *cd = scd_data + unit; struct buf *bp; struct partition *p; register s = splbio(); if (cd->flags & SCDMBXBSY) { splx(s); return; } bp = TAILQ_FIRST(&cd->head); if (bp != 0) { /* block found to process, dequeue */ TAILQ_REMOVE(&cd->head, bp, b_act); cd->flags |= SCDMBXBSY; splx(s); } else { /* nothing to do */ splx(s); return; } p = cd->dlabel.d_partitions + scd_part(bp->b_dev); cd->mbx.unit = unit; cd->mbx.port = cd->iobase; cd->mbx.retry = 3; cd->mbx.bp = bp; cd->mbx.p_offset = p->p_offset; splx(s); scd_doread(SCD_S_BEGIN,&(cd->mbx)); return; } static int scdioctl(dev_t dev, int cmd, caddr_t addr, int flags, struct proc *p) { struct scd_data *cd; int unit,part; unit = scd_unit(dev); part = scd_part(dev); cd = scd_data + unit; XDEBUG(1, ("scd%d: ioctl: cmd=0x%x\n", unit, cmd)); if (!(cd->flags & SCDVALID)) return EIO; switch (cmd) { case DIOCSBAD: return EINVAL; case DIOCGDINFO: *(struct disklabel *)addr = cd->dlabel; return 0; case DIOCGPART: ((struct partinfo *)addr)->disklab = &cd->dlabel; ((struct partinfo *)addr)->part = &cd->dlabel.d_partitions[0]; return 0; case CDIOCPLAYTRACKS: return scd_playtracks(unit, (struct ioc_play_track *) addr); case CDIOCPLAYBLOCKS: return EINVAL; case CDIOCPLAYMSF: return scd_playmsf(unit, (struct ioc_play_msf *) addr); case CDIOCREADSUBCHANNEL: return scd_subchan(unit, (struct ioc_read_subchannel *) addr); case CDIOREADTOCHEADER: return scd_toc_header (unit, (struct ioc_toc_header *) addr); case CDIOREADTOCENTRYS: return scd_toc_entrys (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 scd_resume(unit); case CDIOCPAUSE: return scd_pause(unit); case CDIOCSTART: return EINVAL; case CDIOCSTOP: return scd_stop(unit); case CDIOCEJECT: return scd_eject(unit); case CDIOCALLOW: return 0; case CDIOCSETDEBUG: #ifdef SCD_DEBUG scd_debuglevel++; #endif return 0; case CDIOCCLRDEBUG: #ifdef SCD_DEBUG scd_debuglevel = 0; #endif return 0; default: printf("scd%d: unsupported ioctl (cmd=0x%x)\n", unit, cmd); return ENOTTY; } } /*************************************************************** * lower level of driver starts here **************************************************************/ static int scd_playtracks(int unit, struct ioc_play_track *pt) { struct scd_data *cd = scd_data + unit; struct ioc_play_msf msf; int a = pt->start_track; int z = pt->end_track; int rc; if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { if (rc == -ERR_NOT_SPINNING) { if (spin_up(unit) != 0) return EIO; rc = read_toc(unit); } if (rc != 0) { print_error(unit, rc); return EIO; } } XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit, a, pt->start_index, z, pt->end_index)); if ( a < cd->first_track || a > cd->last_track || a > z || z > cd->last_track) return EINVAL; bcopy(cd->toc[a].start_msf, &msf.start_m, 3); hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m); return scd_play(unit, &msf); } /* The start/end msf is expected to be in bin format */ static int scd_playmsf(int unit, struct ioc_play_msf *msfin) { struct ioc_play_msf msf; msf.start_m = bin2bcd(msfin->start_m); msf.start_s = bin2bcd(msfin->start_s); msf.start_f = bin2bcd(msfin->start_f); msf.end_m = bin2bcd(msfin->end_m); msf.end_s = bin2bcd(msfin->end_s); msf.end_f = bin2bcd(msfin->end_f); return scd_play(unit, &msf); } /* The start/end msf is expected to be in bcd format */ static int scd_play(int unit, struct ioc_play_msf *msf) { struct scd_data *cd = scd_data + unit; int i, rc; XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit, msf->start_m, msf->start_s, msf->start_f, msf->end_m, msf->end_s, msf->end_f)); for (i = 0; i < 2; i++) { rc = send_cmd(unit, CMD_PLAY_AUDIO, 7, 0x03, msf->start_m, msf->start_s, msf->start_f, msf->end_m, msf->end_s, msf->end_f); if (rc == -ERR_NOT_SPINNING) { cd->flags &= ~SCDSPINNING; if (spin_up(unit) != 0) return EIO; } else if (rc < 0) { print_error(unit, rc); return EIO; } else { break; } } cd->audio_status = CD_AS_PLAY_IN_PROGRESS; bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf)); return 0; } static int scd_stop(int unit) { struct scd_data *cd = scd_data + unit; (void)send_cmd(unit, CMD_STOP_AUDIO, 0); cd->audio_status = CD_AS_PLAY_COMPLETED; return 0; } static int scd_pause(int unit) { struct scd_data *cd = scd_data + unit; struct sony_subchannel_position_data subpos; if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) return EINVAL; if (read_subcode(unit, &subpos) != 0) return EIO; if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0) return EIO; cd->last_play.start_m = subpos.abs_msf[0]; cd->last_play.start_s = subpos.abs_msf[1]; cd->last_play.start_f = subpos.abs_msf[2]; cd->audio_status = CD_AS_PLAY_PAUSED; XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit, cd->last_play.start_m, cd->last_play.start_s, cd->last_play.start_f)); return 0; } static int scd_resume(int unit) { if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED) return EINVAL; return scd_play(unit, &scd_data[unit].last_play); } static int scd_eject(int unit) { struct scd_data *cd = scd_data + unit; cd->audio_status = CD_AS_AUDIO_INVALID; cd->flags &= ~(SCDSPINNING|SCDTOC); if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 || send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 || send_cmd(unit, CMD_EJECT, 0) != 0) { return EIO; } return 0; } static int scd_subchan(int unit, struct ioc_read_subchannel *sc) { struct scd_data *cd = scd_data + unit; struct sony_subchannel_position_data q; struct cd_sub_channel_info data; XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit, sc->address_format, sc->data_format)); if (sc->address_format != CD_MSF_FORMAT) return EINVAL; if (sc->data_format != CD_CURRENT_POSITION) return EINVAL; if (read_subcode(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.track_number); data.what.position.reladdr.msf.unused = 0; data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); data.what.position.absaddr.msf.unused = 0; data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0) return EFAULT; return 0; } int scd_probe(struct isa_device *dev) { struct sony_drive_configuration drive_config; int unit = dev->id_unit; int rc; static char namebuf[8+16+8+3]; char *s = namebuf; int loop_count = 0; scd_data[unit].flags = SCDPROBING; scd_data[unit].iobase = dev->id_iobase; bzero(&drive_config, sizeof(drive_config)); again: /* Reset drive */ write_control(dev->id_iobase, CBIT_RESET_DRIVE); /* Calm down */ DELAY(300000); /* Only the ATTENTION bit may be set */ if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) { XDEBUG(1, ("scd: too many bits set. probe failed.\n")); return 0; } rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0); if (rc != sizeof(drive_config)) { /* Sometimes if the drive is playing audio I get */ /* the bad result 82. Fix by repeating the reset */ if (rc > 0 && loop_count++ == 0) goto again; return 0; } if (get_result(unit, rc, (u_char *)&drive_config) != 0) return 0; bcopy(drive_config.vendor, namebuf, 8); s = namebuf+8; while (*(s-1) == ' ') /* Strip trailing spaces */ s--; *s++ = ' '; bcopy(drive_config.product, s, 16); s += 16; while (*(s-1) == ' ') s--; *s++ = ' '; bcopy(drive_config.revision, s, 8); s += 8; while (*(s-1) == ' ') s--; *s = 0; scd_data[unit].name = namebuf; if (drive_config.config & 0x10) scd_data[unit].double_speed = 1; else scd_data[unit].double_speed = 0; return 4; } static int read_subcode(int unit, struct sony_subchannel_position_data *sc) { int rc; rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0); if (rc < 0 || rc < sizeof(*sc)) return EIO; if (get_result(unit, rc, (u_char *)sc) != 0) return EIO; return 0; } /* State machine copied from mcd.c */ /* This (and the code in mcd.c) will not work with more than one drive */ /* because there is only one mbxsave below. Should fix that some day. */ /* (mbxsave & state should probably be included in the scd_data struct and */ /* the unit number used as first argument to scd_doread().) /Micke */ /* state machine to process read requests * initialize with SCD_S_BEGIN: reset state machine * SCD_S_WAITSTAT: wait for ready (!busy) * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. * SCD_S_WAITREAD: wait for data ready, read data * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. */ static struct scd_mbx *mbxsave; static void scd_timeout(void *arg) { scd_doread((int)arg, mbxsave); } static void scd_doread(int state, struct scd_mbx *mbxin) { struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin; int unit = mbx->unit; int port = mbx->port; struct buf *bp = mbx->bp; struct scd_data *cd = scd_data + unit; int reg,i; int blknum; caddr_t addr; static char sdata[3]; /* Must be preserved between calls to this function */ loop: switch (state) { case SCD_S_BEGIN: mbx = mbxsave = mbxin; case SCD_S_BEGIN1: /* get status */ mbx->count = RDELAY_WAIT; process_attention(unit); goto trystat; case SCD_S_WAITSTAT: untimeout(scd_timeout,(caddr_t)SCD_S_WAITSTAT); if (mbx->count-- <= 0) { printf("scd%d: timeout. drive busy.\n",unit); goto harderr; } trystat: if (IS_BUSY(port)) { timeout(scd_timeout, (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */ return; } process_attention(unit); /* reject, if audio active */ if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) { printf("scd%d: audio is active\n",unit); goto harderr; } mbx->sz = cd->blksize; /* for first block */ mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; mbx->skip = 0; nextblock: if (!(cd->flags & SCDVALID)) goto changed; blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) + mbx->p_offset + mbx->skip/mbx->sz; XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum)); /* build parameter block */ hsg2msf(blknum, sdata); write_control(port, CBIT_RESULT_READY_CLEAR); write_control(port, CBIT_RPARAM_CLEAR); write_control(port, CBIT_DATA_READY_CLEAR); if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) goto writeparam; mbx->count = 100; timeout(scd_timeout, (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ return; case SCD_S_WAITSPIN: untimeout(scd_timeout,(caddr_t)SCD_S_WAITSPIN); if (mbx->count-- <= 0) { printf("scd%d: timeout waiting for drive to spin up.\n", unit); goto harderr; } if (!STATUS_BIT(port, SBIT_RESULT_READY)) { timeout(scd_timeout, (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ return; } write_control(port, CBIT_RESULT_READY_CLEAR); switch ((i = inb(port+IREG_RESULT)) & 0xf0) { case 0x20: i = inb(port+IREG_RESULT); print_error(unit, i); goto harderr; case 0x00: (void)inb(port+IREG_RESULT); cd->flags |= SCDSPINNING; break; } XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit)); state = SCD_S_BEGIN1; goto loop; case SCD_S_WAITFIFO: untimeout(scd_timeout,(caddr_t)SCD_S_WAITFIFO); if (mbx->count-- <= 0) { printf("scd%d: timeout. write param not ready.\n",unit); goto harderr; } if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { timeout(scd_timeout, (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ return; } XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100)); writeparam: /* The reason this test isn't done 'till now is to make sure */ /* that it is ok to send the SPIN_UP cmd below. */ if (!(cd->flags & SCDSPINNING)) { XDEBUG(1, ("scd%d: spinning up drive ...\n", unit)); outb(port+OREG_COMMAND, CMD_SPIN_UP); mbx->count = 300; timeout(scd_timeout, (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ return; } reg = port + OREG_WPARAMS; /* send the read command */ disable_intr(); outb(reg, sdata[0]); outb(reg, sdata[1]); outb(reg, sdata[2]); outb(reg, 0); outb(reg, 0); outb(reg, 1); outb(port+OREG_COMMAND, CMD_READ); enable_intr(); mbx->count = RDELAY_WAITREAD; for (i = 0; i < 50; i++) { if (STATUS_BIT(port, SBIT_DATA_READY)) goto got_data; DELAY(100); } timeout(scd_timeout, (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ return; case SCD_S_WAITREAD: untimeout(scd_timeout,(caddr_t)SCD_S_WAITREAD); if (mbx->count-- <= 0) { if (STATUS_BIT(port, SBIT_RESULT_READY)) goto got_param; printf("scd%d: timeout while reading data\n",unit); goto readerr; } if (!STATUS_BIT(port, SBIT_DATA_READY)) { process_attention(unit); if (!(cd->flags & SCDVALID)) goto changed; timeout(scd_timeout, (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ return; } XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD)); got_data: /* data is ready */ addr = bp->b_un.b_addr + mbx->skip; write_control(port, CBIT_DATA_READY_CLEAR); insb(port+IREG_DATA, addr, mbx->sz); mbx->count = 100; for (i = 0; i < 20; i++) { if (STATUS_BIT(port, SBIT_RESULT_READY)) goto waitfor_param; DELAY(100); } goto waitfor_param; case SCD_S_WAITPARAM: untimeout(scd_timeout,(caddr_t)SCD_S_WAITPARAM); if (mbx->count-- <= 0) { printf("scd%d: timeout waiting for params\n",unit); goto readerr; } waitfor_param: if (!STATUS_BIT(port, SBIT_RESULT_READY)) { timeout(scd_timeout, (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */ return; } #if SCD_DEBUG if (mbx->count < 100 && scd_debuglevel > 0) printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100); #endif got_param: write_control(port, CBIT_RESULT_READY_CLEAR); switch ((i = inb(port+IREG_RESULT)) & 0xf0) { case 0x50: switch (i) { case ERR_FATAL_READ_ERROR1: case ERR_FATAL_READ_ERROR2: printf("scd%d: unrecoverable read error 0x%x\n", unit, i); goto harderr; } break; case 0x20: i = inb(port+IREG_RESULT); switch (i) { case ERR_NOT_SPINNING: XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit)); if (mbx->retry-- > 0) { state = SCD_S_BEGIN1; cd->flags &= ~SCDSPINNING; goto loop; } goto harderr; default: print_error(unit, i); goto readerr; } case 0x00: i = inb(port+IREG_RESULT); break; } if (--mbx->nblk > 0) { mbx->skip += mbx->sz; goto nextblock; } /* return buffer */ bp->b_resid = 0; biodone(bp); cd->flags &= ~SCDMBXBSY; scd_start(mbx->unit); return; } readerr: if (mbx->retry-- > 0) { printf("scd%d: retrying ...\n",unit); state = SCD_S_BEGIN1; goto loop; } harderr: /* invalidate the buffer */ bp->b_error = EIO; bp->b_flags |= B_ERROR; bp->b_resid = bp->b_bcount; biodone(bp); cd->flags &= ~SCDMBXBSY; scd_start(mbx->unit); return; changed: printf("scd%d: media changed\n", unit); goto harderr; } 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 void process_attention(unsigned unit) { unsigned port = scd_data[unit].iobase; unsigned char code; int count = 0; while (IS_ATTENTION(port) && count++ < 30) { write_control(port, CBIT_ATTENTION_CLEAR); code = inb(port+IREG_RESULT); #if SCD_DEBUG if (scd_debuglevel > 0) { if (count == 1) printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code); else printf(",0x%x", code); } #endif switch (code) { case ATTEN_SPIN_DOWN: scd_data[unit].flags &= ~SCDSPINNING; break; case ATTEN_SPIN_UP_DONE: scd_data[unit].flags |= SCDSPINNING; break; case ATTEN_AUDIO_DONE: scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED; break; case ATTEN_DRIVE_LOADED: scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); scd_data[unit].audio_status = CD_AS_AUDIO_INVALID; break; case ATTEN_EJECT_PUSHED: scd_data[unit].flags &= ~SCDVALID; break; } DELAY(100); } #if SCD_DEBUG if (scd_debuglevel > 0 && count > 0) printf("\n"); #endif } /* Returns 0 OR sony error code */ static int spin_up(unsigned unit) { unsigned char res_reg[12]; unsigned int res_size; int rc; int loop_count = 0; again: rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size); if (rc != 0) { XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc)); return rc; } if (!(scd_data[unit].flags & SCDTOC)) { rc = send_cmd(unit, CMD_READ_TOC, 0); if (rc == ERR_NOT_SPINNING) { if (loop_count++ < 3) goto again; return rc; } if (rc != 0) return rc; } scd_data[unit].flags |= SCDSPINNING; return 0; } static struct sony_tracklist * get_tl(struct sony_toc *toc, int size) { struct sony_tracklist *tl = &toc->tracks[0]; if (tl->track != 0xb0) return tl; (char *)tl += 9; if (tl->track != 0xb1) return tl; (char *)tl += 9; if (tl->track != 0xb2) return tl; (char *)tl += 9; if (tl->track != 0xb3) return tl; (char *)tl += 9; if (tl->track != 0xb4) return tl; (char *)tl += 9; if (tl->track != 0xc0) return tl; (char *)tl += 9; return tl; } static int read_toc(dev_t dev) { unsigned unit; struct scd_data *cd; unsigned part = 0; /* For now ... */ struct sony_toc toc; struct sony_tracklist *tl; int rc, i, j; u_long first, last; unit = scd_unit(dev); cd = scd_data + unit; rc = send_cmd(unit, CMD_GET_TOC, 1, part+1); if (rc < 0) return rc; if (rc > sizeof(toc)) { printf("scd%d: program error: toc too large (%d)\n", unit, rc); return EIO; } if (get_result(unit, rc, (u_char *)&toc) != 0) return EIO; XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc))); tl = get_tl(&toc, rc); first = msf2hsg(tl->start_msf); last = msf2hsg(toc.lead_out_start_msf); cd->blksize = SCDBLKSIZE; cd->disksize = last*cd->blksize/DEV_BSIZE; XDEBUG(1, ("scd%d: firstsector = %ld, lastsector = %ld", unit, first, last)); cd->first_track = bcd2bin(toc.first_track); cd->last_track = bcd2bin(toc.last_track); if (cd->last_track > (MAX_TRACKS-2)) cd->last_track = MAX_TRACKS-2; for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) { cd->toc[i].adr = tl[j].adr; cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */ bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3); #ifdef SCD_DEBUG if (scd_debuglevel > 0) { if ((j % 3) == 0) printf("\nscd%d: tracks ", unit); printf("[%03d: %2d %2d %2d] ", i, bcd2bin(cd->toc[i].start_msf[0]), bcd2bin(cd->toc[i].start_msf[1]), bcd2bin(cd->toc[i].start_msf[2])); } #endif } bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3); #ifdef SCD_DEBUG if (scd_debuglevel > 0) { i = cd->last_track+1; printf("[END: %2d %2d %2d]\n", bcd2bin(cd->toc[i].start_msf[0]), bcd2bin(cd->toc[i].start_msf[1]), bcd2bin(cd->toc[i].start_msf[2])); } #endif bzero(&cd->dlabel,sizeof(struct disklabel)); /* filled with spaces first */ strncpy(cd->dlabel.d_typename," ", sizeof(cd->dlabel.d_typename)); strncpy(cd->dlabel.d_typename, cd->name, min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); strncpy(cd->dlabel.d_packname,"unknown ", sizeof(cd->dlabel.d_packname)); 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 |= SCDTOC; return 0; } static inline void write_control(unsigned port, unsigned data) { outb(port + OREG_CONTROL, data); } static void init_drive(unsigned unit) { int rc; rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2, 0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0)); if (rc != 0) printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc); } /* Returns 0 or errno */ static int get_result(u_int unit, int result_len, u_char *result) { unsigned int port = scd_data[unit].iobase; unsigned int res_reg = port + IREG_RESULT; int loop_index = 2; /* send_cmd() reads two bytes ... */ XDEBUG(1, ("scd%d: DEBUG: get_result: bytes=%d\n", unit, result_len)); while (result_len-- > 0) { if (loop_index++ >= 10) { loop_index = 1; if (waitfor_status_bits(unit, SBIT_RESULT_READY, 0)) return EIO; write_control(port, CBIT_RESULT_READY_CLEAR); } if (result) *result++ = inb(res_reg); else (void)inb(res_reg); } return 0; } /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...) { va_list ap; u_int port = scd_data[unit].iobase; u_int reg; u_char c; int rc; int i; if (waitfor_status_bits(unit, 0, SBIT_BUSY)) { printf("scd%d: drive busy\n", unit); return -0x100; } XDEBUG(1,("scd%d: DEBUG: send_cmd: cmd=0x%x nargs=%d", unit, cmd, nargs)); write_control(port, CBIT_RESULT_READY_CLEAR); write_control(port, CBIT_RPARAM_CLEAR); for (i = 0; i < 100; i++) if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) break; if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { XDEBUG(1, ("\nscd%d: wparam timeout\n", unit)); return -EIO; } va_start(ap, nargs); reg = port + OREG_WPARAMS; for (i = 0; i < nargs; i++) { c = (u_char)va_arg(ap, int); outb(reg, c); XDEBUG(1, (",{0x%x}", c)); } va_end(ap); XDEBUG(1, ("\n")); outb(port+OREG_COMMAND, cmd); rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY); if (rc) return -0x100; reg = port + IREG_RESULT; write_control(port, CBIT_RESULT_READY_CLEAR); switch ((rc = inb(reg)) & 0xf0) { case 0x20: rc = inb(reg); /* FALL TROUGH */ case 0x50: XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc)); return -rc; case 0x00: default: rc = inb(reg); XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc)); return rc; } } static void print_error(int unit, int errcode) { switch (errcode) { case -ERR_CD_NOT_LOADED: printf("scd%d: door is open\n", unit); break; case -ERR_NO_CD_INSIDE: printf("scd%d: no cd inside\n", unit); break; default: if (errcode == -0x100 || errcode > 0) printf("scd%d: device timeout\n", unit); else printf("scd%d: unexpected error 0x%x\n", unit, -errcode); break; } } /* Returns 0 or errno value */ static int waitfor_status_bits(int unit, int bits_set, int bits_clear) { u_int port = scd_data[unit].iobase; u_int flags = scd_data[unit].flags; u_int reg = port + IREG_STATUS; u_int max_loop; u_char c = 0; if (flags & SCDPROBING) { max_loop = 0; while (max_loop++ < 1000) { c = inb(reg); if (c == 0xff) return EIO; if (c & SBIT_ATTENTION) { process_attention(unit); continue; } if ((c & bits_set) == bits_set && (c & bits_clear) == 0) { break; } DELAY(10000); } } else { max_loop = 100; while (max_loop-- > 0) { c = inb(reg); if (c & SBIT_ATTENTION) { process_attention(unit); continue; } if ((c & bits_set) == bits_set && (c & bits_clear) == 0) { break; } tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); } } if ((c & bits_set) == bits_set && (c & bits_clear) == 0) { return 0; } #ifdef SCD_DEBUG if (scd_debuglevel > 0) printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear); else #endif printf("scd%d: timeout.\n", unit); return EIO; } /* these two routines for xcdplayer - "borrowed" from mcd.c */ static int scd_toc_header (int unit, struct ioc_toc_header* th) { struct scd_data *cd = scd_data + unit; int rc; if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { print_error(unit, rc); return EIO; } th->starting_track = cd->first_track; th->ending_track = cd->last_track; th->len = 0; /* not used */ return 0; } static int scd_toc_entrys (int unit, struct ioc_read_toc_entry *te) { struct scd_data *cd = scd_data + unit; struct cd_toc_entry toc_entry; int rc, i, len = te->data_len; if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { print_error(unit, rc); return EIO; } /* find the toc to copy*/ i = te->starting_track; if (i == SCD_LASTPLUS1) i = cd->last_track + 1; /* verify starting track */ if (i < cd->first_track || i > cd->last_track+1) return EINVAL; /* valid length ? */ if (len < sizeof(struct cd_toc_entry) || (len % sizeof(struct cd_toc_entry)) != 0) return EINVAL; /* copy the toc data */ toc_entry.control = cd->toc[i].ctl; toc_entry.addr_type = te->address_format; toc_entry.track = i; if (te->address_format == CD_MSF_FORMAT) { toc_entry.addr.msf.unused = 0; toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]); toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]); toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]); } /* copy the data back */ if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) return EFAULT; return 0; } static scd_devsw_installed = 0; static void scd_drvinit(void *unused) { if( ! scd_devsw_installed ) { bdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &scd_bdevsw); scd_devsw_installed = 1; } } SYSINIT(scddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,scd_drvinit,NULL) #endif /* NSCD > 0 */