diff options
Diffstat (limited to 'sys/gnu/i386/scd.c')
| -rw-r--r-- | sys/gnu/i386/scd.c | 1530 |
1 files changed, 0 insertions, 1530 deletions
diff --git a/sys/gnu/i386/scd.c b/sys/gnu/i386/scd.c deleted file mode 100644 index 2ea212e..0000000 --- a/sys/gnu/i386/scd.c +++ /dev/null @@ -1,1530 +0,0 @@ -/*- - * Copyright (c) 1995 Mikael Hybsch - * - * 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 - * - * The Linux driver cdu31a has been used as a reference when writing this - * code, there fore bringing it under the GNU Public License. The following - * conditions of redistribution therefore apply: - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - - -/* $Id: scd.c,v 1.6 1995/02/06 22:35:06 jkh Exp $ */ - -/* Please send any comments to micke@dynas.se */ - -#define SCD_DEBUG 0 - -#include "scd.h" -#if NSCD > 0 -#include <sys/types.h> -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/conf.h> -#include <sys/file.h> -#include <sys/buf.h> -#include <sys/stat.h> -#include <sys/uio.h> -#include <sys/ioctl.h> -#include <sys/cdio.h> -#include <sys/errno.h> -#include <sys/dkbad.h> -#include <sys/disklabel.h> -#include <sys/devconf.h> -#include <machine/stdarg.h> - -#include <i386/isa/isa.h> -#include <i386/isa/isa_device.h> -#include <gnu/i386/scdreg.h> - -#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 - 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; -}; - -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 head; /* head of buf queue */ - struct scd_mbx mbx; -} scd_data[NSCD]; - -/* prototypes */ -int scdopen(dev_t dev); -int scdclose(dev_t dev); -void scdstrategy(struct buf *bp); -int scdioctl(dev_t dev, int cmd, caddr_t addr, int flags); -int scdsize(dev_t dev); - -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 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 waitfor_attention(int unit); -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 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 */ - -extern int hz; - -int scd_probe(struct isa_device *dev); -int scd_attach(struct isa_device *dev); -struct isa_driver scddriver = { scd_probe, scd_attach, "scd" }; - -static struct kern_devconf kdc_scd[NSCD] = { { - 0, 0, 0, /* filled in by dev_attach */ - "scd", 0, { MDDT_ISA, 0, "bio" }, - isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, - &kdc_isa0, /* parent */ - 0, /* parentdata */ - DC_IDLE, /* status */ - "Sony CD-ROM drive" /* properly filled later */ -} }; - -static inline void -scd_registerdev(struct isa_device *id) -{ - if(id->id_unit) - kdc_scd[id->id_unit] = kdc_scd[0]; - kdc_scd[id->id_unit].kdc_unit = id->id_unit; - kdc_scd[id->id_unit].kdc_isa = id; - dev_attach(&kdc_scd[id->id_unit]); -} - -int scd_attach(struct isa_device *dev) -{ - struct scd_data *cd = scd_data + dev->id_unit; - int i; - - cd->iobase = dev->id_iobase; /* Already set by probe, but ... */ - - scd_registerdev(dev); - /* name filled in probe */ - kdc_scd[dev->id_unit].kdc_description = scd_data[dev->id_unit].name; - 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; - - return 1; -} - -int -scdopen(dev_t dev) -{ - 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; - kdc_scd[unit].kdc_state = DC_BUSY; - - return 0; -} - -int -scdclose(dev_t dev) -{ - int unit,part,phys; - struct scd_data *cd; - int rlen; - char rdata[10]; - - 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; - } - - kdc_scd[unit].kdc_state = DC_IDLE; - - /* close channel */ - cd->openflag = 0; - - return 0; -} - -void -scdstrategy(struct buf *bp) -{ - struct scd_data *cd; - struct buf *qp; - 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 = %d, bcount = %d\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 */ - qp = &cd->head; - s = splbio(); - disksort(qp,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, *qp = &cd->head; - struct partition *p; - int part; - register s = splbio(); - - if (cd->flags & SCDMBXBSY) { - splx(s); - return; - } - - if ((bp = qp->b_actf) != 0) { - /* block found to process, dequeue */ - qp->b_actf = bp->b_actf; - 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; -} - -int -scdioctl(dev_t dev, int cmd, caddr_t addr, int flags) -{ - 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%lx\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%lx)\n", unit, cmd); - return ENOTTY; - } -} - -int -scdsize(dev_t dev) -{ - return -1; -} - -void -scdintr() -{ - return; -} - -/*************************************************************** - * 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, i; - - 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; - int port = cd->iobase; - - 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_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,k,c; - int blknum; - caddr_t addr; - char rdata[10]; - 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((timeout_func_t)scd_doread,(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((timeout_func_t)scd_doread, - (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; - -firstblock: - /* 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((timeout_func_t)scd_doread, - (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ - return; - - case SCD_S_WAITSPIN: - untimeout((timeout_func_t)scd_doread,(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((timeout_func_t)scd_doread, - (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((timeout_func_t)scd_doread,(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((timeout_func_t)scd_doread, - (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((timeout_func_t)scd_doread, - (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((timeout_func_t)scd_doread, - (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ - return; - - case SCD_S_WAITREAD: - untimeout((timeout_func_t)scd_doread,(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((timeout_func_t)scd_doread, - (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((timeout_func_t)scd_doread,(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((timeout_func_t)scd_doread, - (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 int -bcd2bin(bcd_t b) -{ - return (b >> 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 void -process_attention(unsigned unit) -{ - unsigned port = scd_data[unit].iobase; - unsigned char code; - int count = 0; - int i; - - 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, NULL, 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 = %d, lastsector = %d", 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; - unsigned char c; - 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); - - if (rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY)) - 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; -} - - -#endif /* NSCD > 0 */ |
