Current Path : /sys/dev/scd/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/scd/scd.c |
/*- * 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 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/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/scd/scd.c 167086 2007-02-27 17:23:29Z jhb $"); #undef SCD_DEBUG #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/conf.h> #include <sys/fcntl.h> #include <sys/bio.h> #include <sys/cdio.h> #include <sys/disk.h> #include <sys/bus.h> #include <machine/stdarg.h> #include <machine/bus.h> #include <machine/resource.h> #include <sys/rman.h> #include <isa/isavar.h> #include <dev/scd/scdreg.h> #include <dev/scd/scdvar.h> /* 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(sc, level, fmt, args...) \ do { \ if (scd_debuglevel >= level) \ device_printf(sc->dev, fmt, ## args); \ } while (0) #else # define XDEBUG(sc, level, fmt, args...) #endif #define IS_ATTENTION(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_ATTENTION) != 0) #define IS_BUSY(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_BUSY) != 0) #define IS_DATA_RDY(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_DATA_READY) != 0) #define STATUS_BIT(sc, bit) ((SCD_READ(sc, IREG_STATUS) & (bit)) != 0) #define FSTATUS_BIT(sc, bit) ((SCD_READ(sc, IREG_FSTATUS) & (bit)) != 0) /* prototypes */ static void hsg2msf(int hsg, bcd_t *msf); static int msf2hsg(bcd_t *msf); static void process_attention(struct scd_softc *); static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear); static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...); static void init_drive(struct scd_softc *); static int spin_up(struct scd_softc *); static int read_toc(struct scd_softc *); static int get_result(struct scd_softc *, int result_len, u_char *result); static void print_error(struct scd_softc *, int errcode); static void scd_start(struct scd_softc *); static timeout_t scd_timeout; static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin); static int scd_eject(struct scd_softc *); static int scd_stop(struct scd_softc *); static int scd_pause(struct scd_softc *); static int scd_resume(struct scd_softc *); static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt); static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf); static int scd_play(struct scd_softc *, struct ioc_play_msf *msf); static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch, int nocopyout); static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch); /* for xcdplayer */ static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th); static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te); static int scd_toc_entry(struct scd_softc *, struct ioc_read_toc_single_entry *te); #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ static d_open_t scdopen; static d_close_t scdclose; static d_ioctl_t scdioctl; static d_strategy_t scdstrategy; static struct cdevsw scd_cdevsw = { .d_version = D_VERSION, .d_open = scdopen, .d_close = scdclose, .d_read = physread, .d_ioctl = scdioctl, .d_strategy = scdstrategy, .d_name = "scd", .d_flags = D_DISK | D_NEEDGIANT, }; int scd_attach(struct scd_softc *sc) { int unit; unit = device_get_unit(sc->dev); init_drive(sc); sc->data.flags = SCDINIT; sc->data.audio_status = CD_AS_AUDIO_INVALID; bioq_init(&sc->data.head); sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit, UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit); sc->scd_dev_t->si_drv1 = (void *)sc; return (0); } static int scdopen(struct cdev *dev, int flags, int fmt, struct thread *td) { struct scd_softc *sc; int rc; sc = (struct scd_softc *)dev->si_drv1; /* not initialized*/ if (!(sc->data.flags & SCDINIT)) return (ENXIO); /* invalidated in the meantime? mark all open part's invalid */ if (sc->data.openflag) return (ENXIO); XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS)); if ((rc = spin_up(sc)) != 0) { print_error(sc, rc); return (EIO); } if (!(sc->data.flags & SCDTOC)) { int loop_count = 3; while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) { if (rc == ERR_NOT_SPINNING) { rc = spin_up(sc); if (rc) { print_error(sc, rc);\ return (EIO); } continue; } device_printf(sc->dev, "TOC read error 0x%x\n", rc); return (EIO); } } sc->data.openflag = 1; sc->data.flags |= SCDVALID; return (0); } static int scdclose(struct cdev *dev, int flags, int fmt, struct thread *td) { struct scd_softc *sc; sc = (struct scd_softc *)dev->si_drv1; if (!(sc->data.flags & SCDINIT) || !sc->data.openflag) return (ENXIO); if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) { (void)send_cmd(sc, CMD_SPIN_DOWN, 0); sc->data.flags &= ~SCDSPINNING; } /* close channel */ sc->data.openflag = 0; return (0); } static void scdstrategy(struct bio *bp) { int s; struct scd_softc *sc; sc = (struct scd_softc *)bp->bio_dev->si_drv1; /* if device invalidated (e.g. media change, door open), error */ if (!(sc->data.flags & SCDVALID)) { device_printf(sc->dev, "media changed\n"); bp->bio_error = EIO; goto bad; } /* read only */ if (!(bp->bio_cmd == BIO_READ)) { bp->bio_error = EROFS; goto bad; } /* no data to read */ if (bp->bio_bcount == 0) goto done; if (!(sc->data.flags & SCDTOC)) { bp->bio_error = EIO; goto bad; } bp->bio_resid = 0; /* queue it */ s = splbio(); bioq_disksort(&sc->data.head, bp); splx(s); /* now check whether we can perform processing */ scd_start(sc); return; bad: bp->bio_flags |= BIO_ERROR; done: bp->bio_resid = bp->bio_bcount; biodone(bp); return; } static void scd_start(struct scd_softc *sc) { struct bio *bp; int s = splbio(); if (sc->data.flags & SCDMBXBSY) { splx(s); return; } bp = bioq_takefirst(&sc->data.head); if (bp != 0) { /* block found to process, dequeue */ sc->data.flags |= SCDMBXBSY; splx(s); } else { /* nothing to do */ splx(s); return; } sc->data.mbx.retry = 3; sc->data.mbx.bp = bp; splx(s); scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx)); return; } static int scdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td) { struct scd_softc *sc; sc = (struct scd_softc *)dev->si_drv1; XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd); if (!(sc->data.flags & SCDVALID)) return (EIO); switch (cmd) { case DIOCGMEDIASIZE: *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize; return (0); break; case DIOCGSECTORSIZE: *(u_int *)addr = sc->data.blksize; return (0); break; case CDIOCPLAYTRACKS: return scd_playtracks(sc, (struct ioc_play_track *) addr); case CDIOCPLAYBLOCKS: return (EINVAL); case CDIOCPLAYMSF: return scd_playmsf(sc, (struct ioc_play_msf *) addr); case CDIOCREADSUBCHANNEL_SYSSPACE: return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 1); case CDIOCREADSUBCHANNEL: return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 0); case CDIOREADTOCHEADER: return scd_toc_header (sc, (struct ioc_toc_header *) addr); case CDIOREADTOCENTRYS: return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr); case CDIOREADTOCENTRY: return scd_toc_entry (sc, (struct ioc_read_toc_single_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(sc); case CDIOCPAUSE: return scd_pause(sc); case CDIOCSTART: return (EINVAL); case CDIOCSTOP: return scd_stop(sc); case CDIOCEJECT: return scd_eject(sc); 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: device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd); return (ENOTTY); } } /*************************************************************** * lower level of driver starts here **************************************************************/ static int scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt) { struct ioc_play_msf msf; int a = pt->start_track; int z = pt->end_track; int rc; if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { if (rc == -ERR_NOT_SPINNING) { if (spin_up(sc) != 0) return (EIO); rc = read_toc(sc); } if (rc != 0) { print_error(sc, rc); return (EIO); } } XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n", a, pt->start_index, z, pt->end_index); if ( a < sc->data.first_track || a > sc->data.last_track || a > z || z > sc->data.last_track) return (EINVAL); bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3); hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m); return scd_play(sc, &msf); } /* The start/end msf is expected to be in bin format */ static int scd_playmsf(struct scd_softc *sc, 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(sc, &msf); } /* The start/end msf is expected to be in bcd format */ static int scd_play(struct scd_softc *sc, struct ioc_play_msf *msf) { int i, rc; XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", 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(sc, 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) { sc->data.flags &= ~SCDSPINNING; if (spin_up(sc) != 0) return (EIO); } else if (rc < 0) { print_error(sc, rc); return (EIO); } else { break; } } sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS; bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf)); return (0); } static int scd_stop(struct scd_softc *sc) { (void)send_cmd(sc, CMD_STOP_AUDIO, 0); sc->data.audio_status = CD_AS_PLAY_COMPLETED; return (0); } static int scd_pause(struct scd_softc *sc) { struct sony_subchannel_position_data subpos; if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) return (EINVAL); if (read_subcode(sc, &subpos) != 0) return (EIO); if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0) return (EIO); sc->data.last_play.start_m = subpos.abs_msf[0]; sc->data.last_play.start_s = subpos.abs_msf[1]; sc->data.last_play.start_f = subpos.abs_msf[2]; sc->data.audio_status = CD_AS_PLAY_PAUSED; XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n", sc->data.last_play.start_m, sc->data.last_play.start_s, sc->data.last_play.start_f); return (0); } static int scd_resume(struct scd_softc *sc) { if (sc->data.audio_status != CD_AS_PLAY_PAUSED) return (EINVAL); return scd_play(sc, &sc->data.last_play); } static int scd_eject(struct scd_softc *sc) { sc->data.audio_status = CD_AS_AUDIO_INVALID; sc->data.flags &= ~(SCDSPINNING|SCDTOC); if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 || send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 || send_cmd(sc, CMD_EJECT, 0) != 0) { return (EIO); } return (0); } static int scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch, int nocopyout) { struct sony_subchannel_position_data q; struct cd_sub_channel_info data; XDEBUG(sc, 1, "subchan af=%d, df=%d\n", sch->address_format, sch->data_format); if (sch->address_format != CD_MSF_FORMAT) return (EINVAL); if (sch->data_format != CD_CURRENT_POSITION) return (EINVAL); if (read_subcode(sc, &q) != 0) return (EIO); data.header.audio_status = sc->data.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 (nocopyout == 0) { if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0) return (EFAULT); } else { bcopy(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len)); } return (0); } int scd_probe(struct scd_softc *sc) { struct sony_drive_configuration drive_config; int rc; static char namebuf[8+16+8+3]; char *s = namebuf; int loop_count = 0; sc->data.flags = SCDPROBING; bzero(&drive_config, sizeof(drive_config)); again: /* Reset drive */ SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE); /* Calm down */ DELAY(300000); /* Only the ATTENTION bit may be set */ if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) { XDEBUG(sc, 1, "too many bits set. probe failed.\n"); return (ENXIO); } rc = send_cmd(sc, 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 (ENXIO); } if (get_result(sc, rc, (u_char *)&drive_config) != 0) return (ENXIO); 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; sc->data.name = namebuf; if (drive_config.config & 0x10) sc->data.double_speed = 1; else sc->data.double_speed = 0; return (0); } static int read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp) { int rc; rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0); if (rc < 0 || rc < sizeof(*scp)) return (EIO); if (get_result(sc, rc, (u_char *)scp) != 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 sc->ch_mbxsave below. Should fix that some day. */ /* (sc->ch_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 void scd_timeout(void *arg) { struct scd_softc *sc; sc = (struct scd_softc *)arg; scd_doread(sc, sc->ch_state, sc->ch_mbxsave); } static void scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin) { struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin; struct bio *bp = mbx->bp; int 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 = sc->ch_mbxsave = mbxin; case SCD_S_BEGIN1: /* get status */ mbx->count = RDELAY_WAIT; process_attention(sc); goto trystat; case SCD_S_WAITSTAT: sc->ch_state = SCD_S_WAITSTAT; untimeout(scd_timeout, (caddr_t)sc, sc->ch); if (mbx->count-- <= 0) { device_printf(sc->dev, "timeout. drive busy.\n"); goto harderr; } trystat: if (IS_BUSY(sc)) { sc->ch_state = SCD_S_WAITSTAT; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; } process_attention(sc); /* reject, if audio active */ if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) { device_printf(sc->dev, "audio is active\n"); goto harderr; } mbx->sz = sc->data.blksize; /* for first block */ mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz; mbx->skip = 0; nextblock: if (!(sc->data.flags & SCDVALID)) goto changed; blknum = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz; XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum); /* build parameter block */ hsg2msf(blknum, sdata); SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) goto writeparam; mbx->count = 100; sc->ch_state = SCD_S_WAITFIFO; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; case SCD_S_WAITSPIN: sc->ch_state = SCD_S_WAITSPIN; untimeout(scd_timeout,(caddr_t)sc, sc->ch); if (mbx->count-- <= 0) { device_printf(sc->dev, "timeout waiting for drive to spin up.\n"); goto harderr; } if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { sc->ch_state = SCD_S_WAITSPIN; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; } SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { case 0x20: i = SCD_READ(sc, IREG_RESULT); print_error(sc, i); goto harderr; case 0x00: (void)SCD_READ(sc, IREG_RESULT); sc->data.flags |= SCDSPINNING; break; } XDEBUG(sc, 1, "DEBUG: spin up complete\n"); state = SCD_S_BEGIN1; goto loop; case SCD_S_WAITFIFO: sc->ch_state = SCD_S_WAITFIFO; untimeout(scd_timeout,(caddr_t)sc, sc->ch); if (mbx->count-- <= 0) { device_printf(sc->dev, "timeout. write param not ready.\n"); goto harderr; } if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { sc->ch_state = SCD_S_WAITFIFO; sc->ch = timeout(scd_timeout, (caddr_t)sc,hz/100); /* XXX */ return; } XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", 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 (!(sc->data.flags & SCDSPINNING)) { XDEBUG(sc, 1, "spinning up drive ...\n"); SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP); mbx->count = 300; sc->ch_state = SCD_S_WAITSPIN; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; } /* send the read command */ critical_enter(); SCD_WRITE(sc, OREG_WPARAMS, sdata[0]); SCD_WRITE(sc, OREG_WPARAMS, sdata[1]); SCD_WRITE(sc, OREG_WPARAMS, sdata[2]); SCD_WRITE(sc, OREG_WPARAMS, 0); SCD_WRITE(sc, OREG_WPARAMS, 0); SCD_WRITE(sc, OREG_WPARAMS, 1); SCD_WRITE(sc, OREG_COMMAND, CMD_READ); critical_exit(); mbx->count = RDELAY_WAITREAD; for (i = 0; i < 50; i++) { if (STATUS_BIT(sc, SBIT_DATA_READY)) goto got_data; DELAY(100); } sc->ch_state = SCD_S_WAITREAD; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; case SCD_S_WAITREAD: sc->ch_state = SCD_S_WAITREAD; untimeout(scd_timeout,(caddr_t)sc, sc->ch); if (mbx->count-- <= 0) { if (STATUS_BIT(sc, SBIT_RESULT_READY)) goto got_param; device_printf(sc->dev, "timeout while reading data\n"); goto readerr; } if (!STATUS_BIT(sc, SBIT_DATA_READY)) { process_attention(sc); if (!(sc->data.flags & SCDVALID)) goto changed; sc->ch_state = SCD_S_WAITREAD; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; } XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD); got_data: /* data is ready */ addr = bp->bio_data + mbx->skip; SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz); mbx->count = 100; for (i = 0; i < 20; i++) { if (STATUS_BIT(sc, SBIT_RESULT_READY)) goto waitfor_param; DELAY(100); } goto waitfor_param; case SCD_S_WAITPARAM: sc->ch_state = SCD_S_WAITPARAM; untimeout(scd_timeout,(caddr_t)sc, sc->ch); if (mbx->count-- <= 0) { device_printf(sc->dev, "timeout waiting for params\n"); goto readerr; } waitfor_param: if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { sc->ch_state = SCD_S_WAITPARAM; sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ return; } #ifdef SCD_DEBUG if (mbx->count < 100 && scd_debuglevel > 0) device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100); #endif got_param: SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { case 0x50: switch (i) { case ERR_FATAL_READ_ERROR1: case ERR_FATAL_READ_ERROR2: device_printf(sc->dev, "unrecoverable read error 0x%x\n", i); goto harderr; } break; case 0x20: i = SCD_READ(sc, IREG_RESULT); switch (i) { case ERR_NOT_SPINNING: XDEBUG(sc, 1, "read error: drive not spinning\n"); if (mbx->retry-- > 0) { state = SCD_S_BEGIN1; sc->data.flags &= ~SCDSPINNING; goto loop; } goto harderr; default: print_error(sc, i); goto readerr; } case 0x00: i = SCD_READ(sc, IREG_RESULT); break; } if (--mbx->nblk > 0) { mbx->skip += mbx->sz; goto nextblock; } /* return buffer */ bp->bio_resid = 0; biodone(bp); sc->data.flags &= ~SCDMBXBSY; scd_start(sc); return; } readerr: if (mbx->retry-- > 0) { device_printf(sc->dev, "retrying ...\n"); state = SCD_S_BEGIN1; goto loop; } harderr: /* invalidate the buffer */ bp->bio_error = EIO; bp->bio_flags |= BIO_ERROR; bp->bio_resid = bp->bio_bcount; biodone(bp); sc->data.flags &= ~SCDMBXBSY; scd_start(sc); return; changed: device_printf(sc->dev, "media changed\n"); 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(struct scd_softc *sc) { unsigned char code; int count = 0; while (IS_ATTENTION(sc) && count++ < 30) { SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR); code = SCD_READ(sc, IREG_RESULT); #ifdef SCD_DEBUG if (scd_debuglevel > 0) { if (count == 1) device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code); else printf(",0x%x", code); } #endif switch (code) { case ATTEN_SPIN_DOWN: sc->data.flags &= ~SCDSPINNING; break; case ATTEN_SPIN_UP_DONE: sc->data.flags |= SCDSPINNING; break; case ATTEN_AUDIO_DONE: sc->data.audio_status = CD_AS_PLAY_COMPLETED; break; case ATTEN_DRIVE_LOADED: sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); sc->data.audio_status = CD_AS_AUDIO_INVALID; break; case ATTEN_EJECT_PUSHED: sc->data.flags &= ~SCDVALID; break; } DELAY(100); } #ifdef SCD_DEBUG if (scd_debuglevel > 0 && count > 0) printf("\n"); #endif } /* Returns 0 OR sony error code */ static int spin_up(struct scd_softc *sc) { unsigned char res_reg[12]; unsigned int res_size; int rc; int loop_count = 0; again: rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size); if (rc != 0) { XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc); return (rc); } if (!(sc->data.flags & SCDTOC)) { rc = send_cmd(sc, CMD_READ_TOC, 0); if (rc == ERR_NOT_SPINNING) { if (loop_count++ < 3) goto again; return (rc); } if (rc != 0) return (rc); } sc->data.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); if (tl->track != 0xb1) return (tl); tl = (struct sony_tracklist *)((char *)tl + 9); if (tl->track != 0xb2) return (tl); tl = (struct sony_tracklist *)((char *)tl + 9); if (tl->track != 0xb3) return (tl); tl = (struct sony_tracklist *)((char *)tl + 9); if (tl->track != 0xb4) return (tl); tl = (struct sony_tracklist *)((char *)tl + 9); if (tl->track != 0xc0) return (tl); tl = (struct sony_tracklist *)((char *)tl + 9); return (tl); } static int read_toc(struct scd_softc *sc) { struct sony_toc toc; struct sony_tracklist *tl; int rc, i, j; u_long first, last; rc = send_cmd(sc, CMD_GET_TOC, 1, 1); if (rc < 0) return (rc); if (rc > sizeof(toc)) { device_printf(sc->dev, "program error: toc too large (%d)\n", rc); return (EIO); } if (get_result(sc, rc, (u_char *)&toc) != 0) return (EIO); XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc)); tl = get_tl(&toc, rc); first = msf2hsg(tl->start_msf); last = msf2hsg(toc.lead_out_start_msf); sc->data.blksize = SCDBLKSIZE; sc->data.disksize = last*sc->data.blksize/DEV_BSIZE; XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last); sc->data.first_track = bcd2bin(toc.first_track); sc->data.last_track = bcd2bin(toc.last_track); if (sc->data.last_track > (MAX_TRACKS-2)) sc->data.last_track = MAX_TRACKS-2; for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) { sc->data.toc[i].adr = tl[j].adr; sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */ bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3); #ifdef SCD_DEBUG if (scd_debuglevel > 0) { if ((j % 3) == 0) { printf("\n"); device_printf(sc->dev, "tracks "); } printf("[%03d: %2d %2d %2d] ", i, bcd2bin(sc->data.toc[i].start_msf[0]), bcd2bin(sc->data.toc[i].start_msf[1]), bcd2bin(sc->data.toc[i].start_msf[2])); } #endif } bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3); #ifdef SCD_DEBUG if (scd_debuglevel > 0) { i = sc->data.last_track+1; printf("[END: %2d %2d %2d]\n", bcd2bin(sc->data.toc[i].start_msf[0]), bcd2bin(sc->data.toc[i].start_msf[1]), bcd2bin(sc->data.toc[i].start_msf[2])); } #endif sc->data.flags |= SCDTOC; return (0); } static void init_drive(struct scd_softc *sc) { int rc; rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2, 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0)); if (rc != 0) device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc); } /* Returns 0 or errno */ static int get_result(struct scd_softc *sc, int result_len, u_char *result) { int loop_index = 2; /* send_cmd() reads two bytes ... */ XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len); while (result_len-- > 0) { if (loop_index++ >= 10) { loop_index = 1; if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0)) return (EIO); SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); } if (result) *result++ = SCD_READ(sc, IREG_RESULT); else (void)SCD_READ(sc, IREG_RESULT); } return (0); } /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ static int send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...) { va_list ap; u_char c; int rc; int i; if (waitfor_status_bits(sc, 0, SBIT_BUSY)) { device_printf(sc->dev, "drive busy\n"); return (-0x100); } XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs); SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); for (i = 0; i < 100; i++) if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) break; if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { XDEBUG(sc, 1, "\nwparam timeout\n"); return (-EIO); } va_start(ap, nargs); for (i = 0; i < nargs; i++) { c = (u_char)va_arg(ap, int); SCD_WRITE(sc, OREG_WPARAMS, c); XDEBUG(sc, 1, ",{0x%x}", c); } va_end(ap); XDEBUG(sc, 1, "\n"); SCD_WRITE(sc, OREG_COMMAND, cmd); rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY); if (rc) return (-0x100); SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) { case 0x20: rc = SCD_READ(sc, IREG_RESULT); /* FALLTHROUGH */ case 0x50: XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc); return (-rc); case 0x00: default: rc = SCD_READ(sc, IREG_RESULT); XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc); return (rc); } } static void print_error(struct scd_softc *sc, int errcode) { switch (errcode) { case -ERR_CD_NOT_LOADED: device_printf(sc->dev, "door is open\n"); break; case -ERR_NO_CD_INSIDE: device_printf(sc->dev, "no cd inside\n"); break; default: if (errcode == -0x100 || errcode > 0) device_printf(sc->dev, "device timeout\n"); else device_printf(sc->dev, "unexpected error 0x%x\n", -errcode); break; } } /* Returns 0 or errno value */ static int waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear) { u_int flags = sc->data.flags; u_int max_loop; u_char c = 0; if (flags & SCDPROBING) { max_loop = 0; while (max_loop++ < 1000) { c = SCD_READ(sc, IREG_STATUS); if (c == 0xff) return (EIO); if (c & SBIT_ATTENTION) { process_attention(sc); continue; } if ((c & bits_set) == bits_set && (c & bits_clear) == 0) { break; } DELAY(10000); } } else { max_loop = 100; while (max_loop-- > 0) { c = SCD_READ(sc, IREG_STATUS); if (c & SBIT_ATTENTION) { process_attention(sc); continue; } if ((c & bits_set) == bits_set && (c & bits_clear) == 0) { break; } pause("waitfor", hz/10); } } if ((c & bits_set) == bits_set && (c & bits_clear) == 0) { return (0); } #ifdef SCD_DEBUG if (scd_debuglevel > 0) device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear); else #endif device_printf(sc->dev, "timeout.\n"); return (EIO); } /* these two routines for xcdplayer - "borrowed" from mcd.c */ static int scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th) { int rc; if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { print_error(sc, rc); return (EIO); } th->starting_track = sc->data.first_track; th->ending_track = sc->data.last_track; th->len = 0; /* not used */ return (0); } static int scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te) { struct cd_toc_entry toc_entry; int rc, i, len = te->data_len; if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { print_error(sc, rc); return (EIO); } /* find the toc to copy*/ i = te->starting_track; if (i == SCD_LASTPLUS1) i = sc->data.last_track + 1; /* verify starting track */ if (i < sc->data.first_track || i > sc->data.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 = sc->data.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(sc->data.toc[i].start_msf[0]); toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); toc_entry.addr.msf.frame = bcd2bin(sc->data.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 int scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te) { struct cd_toc_entry toc_entry; int rc, i; if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { print_error(sc, rc); return (EIO); } /* find the toc to copy*/ i = te->track; if (i == SCD_LASTPLUS1) i = sc->data.last_track + 1; /* verify starting track */ if (i < sc->data.first_track || i > sc->data.last_track+1) return (EINVAL); /* copy the toc data */ toc_entry.control = sc->data.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(sc->data.toc[i].start_msf[0]); toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); } /* copy the data back */ bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry)); return (0); }