OpenSolaris_b135/cmd/cdrw/misc_scsi.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/dkio.h>
#include <unistd.h>
#include <errno.h>
#include <libintl.h>
#include <sys/time.h>
#include "mmc.h"
#include "util.h"
#include "misc_scsi.h"
#include "transport.h"
#include "main.h"
#include "toshiba.h"
#include "msgs.h"
#include "device.h"
static int check_track_size(cd_device *dev, int trk_num,
struct track_info *tip);
static int rtoc_get_trk_sess_num(uchar_t *rtoc, size_t rtoc_len, int trk_num,
int *sess_nump);
static int rtoc_get_sess_last_trk_num(uchar_t *rtoc, size_t rtoc_len,
int sess_num, int *last_trk_nump);
static int rtoc_get_sess_leadout_lba(uchar_t *rtoc, size_t rtoc_len,
int sess_num, uint32_t *leadout_lba);
static rtoc_td_t *get_rtoc_td(rtoc_td_t *begin_tdp, rtoc_td_t *end_tdp,
uchar_t adr, uchar_t point);
uint32_t
read_scsi32(void *addr)
{
uchar_t *ad = (uchar_t *)addr;
uint32_t ret;
ret = ((((uint32_t)ad[0]) << 24) | (((uint32_t)ad[1]) << 16) |
(((uint32_t)ad[2]) << 8) | ad[3]);
return (ret);
}
uint16_t
read_scsi16(void *addr)
{
uchar_t *ad = (uchar_t *)addr;
uint16_t ret;
ret = ((((uint16_t)ad[0]) << 8) | ad[1]);
return (ret);
}
void
load_scsi32(void *addr, uint32_t v)
{
uchar_t *ad = (uchar_t *)addr;
ad[0] = (uchar_t)(v >> 24);
ad[1] = (uchar_t)(v >> 16);
ad[2] = (uchar_t)(v >> 8);
ad[3] = (uchar_t)v;
}
void
load_scsi16(void *addr, uint16_t v)
{
uchar_t *ad = (uchar_t *)addr;
ad[0] = (uchar_t)(v >> 8);
ad[1] = (uchar_t)v;
}
/*
* will get the mode page only i.e. will strip off the header.
*/
int
get_mode_page(int fd, int page_no, int pc, int buf_len, uchar_t *buffer)
{
int ret;
uchar_t byte2, *buf;
uint_t header_len, page_len, copy_cnt;
byte2 = (uchar_t)(((pc << 6) & 0xC0) | (page_no & 0x3f));
buf = (uchar_t *)my_zalloc(256);
/* Ask 254 bytes only to make our IDE driver happy */
ret = mode_sense(fd, byte2, 1, 254, buf);
if (ret == 0) {
free(buf);
return (0);
}
header_len = 8 + read_scsi16(&buf[6]);
page_len = buf[header_len + 1] + 2;
copy_cnt = (page_len > buf_len) ? buf_len : page_len;
(void) memcpy(buffer, &buf[header_len], copy_cnt);
free(buf);
return (1);
}
/*
* will take care of adding mode header and any extra bytes at the end.
*/
int
set_mode_page(int fd, uchar_t *buffer)
{
int ret;
uchar_t *buf;
uint_t total, p_len;
p_len = buffer[1] + 2;
total = p_len + 8;
buf = (uchar_t *)my_zalloc(total);
(void) memcpy(&buf[8], buffer, p_len);
if (debug) {
int i;
(void) printf("MODE: [");
for (i = 0; i < p_len; i++) {
(void) printf("0x%02x ", (uchar_t)buffer[i]);
}
(void) printf("]\n");
}
ret = mode_select(fd, total, buf);
free(buf);
return (ret);
}
/*
* Builds track information database for track trackno. If trackno is
* -1, builds the database for next blank track.
*/
int
build_track_info(cd_device *dev, int trackno, struct track_info *t_info)
{
uchar_t *ti;
uchar_t toc[20]; /* 2 entries + 4 byte header */
int ret;
(void) memset(t_info, 0, sizeof (*t_info));
/* 1st try READ TRACK INFORMATION */
ti = (uchar_t *)my_zalloc(TRACK_INFO_SIZE);
t_info->ti_track_no = trackno;
/* Gererate faked information for writing to DVD */
if (device_type != CD_RW) {
uint_t bsize;
t_info->ti_flags = 0x3000;
t_info->ti_track_no = 1;
t_info->ti_session_no = 1;
t_info->ti_track_mode = 0x4;
t_info->ti_data_mode = 1;
t_info->ti_start_address = 0;
/* only 1 track on DVD make it max size */
t_info->ti_track_size = read_format_capacity(target->d_fd,
&bsize);
if (t_info->ti_track_size < MAX_CD_BLKS) {
t_info->ti_track_size = MAX_DVD_BLKS;
}
t_info->ti_nwa = 0;
t_info->ti_lra = 0;
t_info->ti_packet_size = 0x10;
t_info->ti_free_blocks = 0;
}
if (read_track_info(dev->d_fd, trackno, ti)) {
if (debug)
(void) printf("using read_track_info for TOC \n");
t_info->ti_track_no = ti[2];
t_info->ti_session_no = ti[3];
t_info->ti_flags = (ti[6] >> 4) & 0xf;
t_info->ti_flags |= (uint32_t)(ti[5] & 0xf0);
t_info->ti_flags |= (uint32_t)(ti[7]) << 8;
t_info->ti_flags |= TI_SESSION_NO_VALID | TI_FREE_BLOCKS_VALID;
t_info->ti_track_mode = ti[5] & 0xf;
if ((ti[6] & 0xf) == 0xf)
t_info->ti_data_mode = 0xff;
else
t_info->ti_data_mode = ti[6] & 0xf;
t_info->ti_start_address = read_scsi32(&ti[8]);
t_info->ti_nwa = read_scsi32(&ti[12]);
t_info->ti_free_blocks = read_scsi32(&ti[16]);
t_info->ti_packet_size = read_scsi32(&ti[20]);
t_info->ti_track_size = read_scsi32(&ti[24]);
t_info->ti_lra = read_scsi32(&ti[28]);
free(ti);
return (1);
}
/* READ TRACK INFORMATION not supported, try other options */
free(ti);
/*
* We can get info for next blank track if READ TRACK INFO is not
* supported.
*/
if (trackno == -1)
return (0);
if (debug)
(void) printf("using READ_TOC for TOC\n");
/* Try Read TOC */
if (!read_toc(dev->d_fd, 0, trackno, 20, toc)) {
return (0);
}
t_info->ti_start_address = read_scsi32(&toc[8]);
t_info->ti_track_mode = toc[5] & 0xf;
t_info->ti_track_size = read_scsi32(&toc[16]) - read_scsi32(&toc[8]);
t_info->ti_data_mode = get_data_mode(dev->d_fd, read_scsi32(&toc[8]));
/* Numbers for audio tracks are always in 2K chunks */
if ((dev->d_blksize == 512) && ((t_info->ti_track_mode & 4) == 0)) {
t_info->ti_start_address /= 4;
t_info->ti_track_size /= 4;
}
/* Now find out the session thing */
ret = read_toc(dev->d_fd, 1, trackno, 12, toc);
/*
* Make sure that the call succeeds and returns the requested
* TOC size correctly.
*/
if ((ret == 0) || (toc[1] != 0x0a)) {
/* For ATAPI drives or old Toshiba drives */
ret = read_toc_as_per_8020(dev->d_fd, 1, trackno, 12, toc);
}
/* If this goes through well TOC length will always be 0x0a */
if (ret && (toc[1] == 0x0a)) {
if (trackno >= toc[6]) {
t_info->ti_session_no = toc[3];
t_info->ti_flags |= TI_SESSION_NO_VALID;
}
/*
* This might be the last track of this session. If so,
* exclude the leadout and next lead in.
*/
if (trackno == (toc[6] - 1)) {
/*
* 1.5 Min leadout + 1 min. leadin + 2 sec. pre-gap.
* For 2nd+ leadout it will be 0.5 min. But currently
* there is no direct way. And it will not happen
* for any normal case.
*
* 75 frames/sec, 60 sec/min, so leadin gap is
* ((1.5 +1)*60 + 2)*75 = 11400 frames (blocks)
*/
t_info->ti_track_size -= 11400;
}
} else {
if (check_track_size(dev, trackno, t_info) != 1)
return (0);
}
return (1);
}
/*
* The size of the last track in one of the first N - 1 sessions of an
* N-session (N > 1) disc is reported incorrectly by some drives and calculated
* incorrectly for others, because a pre-gap/lead-out/lead-in section that ends
* a session is erroneously considered part of that track. This function checks
* for this corner case, and adjusts the track size if necessary.
*/
static int
check_track_size(cd_device *dev, int trk_num, struct track_info *tip)
{
size_t raw_toc_len;
uchar_t *raw_toc;
rtoc_hdr_t hdr;
uint32_t sess_leadout_lba;
int sess_last_trk_num;
int trk_sess_num;
uint32_t trk_size;
/* Request Raw TOC Header for session count. */
if (read_toc(dev->d_fd, FORMAT_RAW_TOC, 1,
sizeof (rtoc_hdr_t), (uchar_t *)&hdr) != 1)
return (0);
/* Is this a multi-session medium? */
if (hdr.rh_last_sess_num > hdr.rh_first_sess_num) {
/* Yes; request entire Raw TOC. */
raw_toc_len = read_scsi16(&hdr.rh_data_len1) + RTOC_DATA_LEN_SZ;
raw_toc = (uchar_t *)my_zalloc(raw_toc_len);
if (read_toc(dev->d_fd, FORMAT_RAW_TOC, 1, raw_toc_len, raw_toc)
!= 1)
goto fail;
if (rtoc_get_trk_sess_num(raw_toc, raw_toc_len, trk_num,
&trk_sess_num) != 1)
goto fail;
tip->ti_session_no = trk_sess_num;
tip->ti_flags |= TI_SESSION_NO_VALID;
/* Is the track in one of the first N - 1 sessions? */
if (trk_sess_num < hdr.rh_last_sess_num) {
if (rtoc_get_sess_last_trk_num(raw_toc, raw_toc_len,
trk_sess_num, &sess_last_trk_num) != 1)
goto fail;
/* Is the track the last track in the session? */
if (trk_num == sess_last_trk_num) {
if (rtoc_get_sess_leadout_lba(raw_toc,
raw_toc_len, trk_sess_num,
&sess_leadout_lba) != 1)
goto fail;
trk_size = sess_leadout_lba -
tip->ti_start_address;
/* Fix track size if it was too big. */
if (tip->ti_track_size > trk_size)
tip->ti_track_size = trk_size;
}
}
free(raw_toc);
}
return (1);
fail:
free(raw_toc);
return (0);
}
/*
* Determine what session number a track is in by parsing the Raw TOC format of
* the the READ TOC/PMA/ATIP command response data.
*/
static int
rtoc_get_trk_sess_num(uchar_t *rtoc, size_t rtoc_len, int trk_num,
int *sess_nump)
{
rtoc_td_t *tdp = (rtoc_td_t *)(rtoc + sizeof (rtoc_hdr_t));
rtoc_td_t *last_tdp = (rtoc_td_t *)(rtoc + rtoc_len -
sizeof (rtoc_td_t));
if ((tdp = get_rtoc_td(tdp, last_tdp, Q_MODE_1, (uchar_t)trk_num)) !=
NULL) {
*sess_nump = tdp->rt_session_num;
return (1);
} else
return (0);
}
/*
* Determine the last track number in a specified session number by parsing the
* Raw TOC format of the READ TOC/PMA/ATIP command response data.
*/
static int
rtoc_get_sess_last_trk_num(uchar_t *rtoc, size_t rtoc_len, int sess_num,
int *last_trk_nump)
{
rtoc_td_t *tdp = (rtoc_td_t *)(rtoc + sizeof (rtoc_hdr_t));
rtoc_td_t *last_tdp = (rtoc_td_t *)(rtoc + rtoc_len -
sizeof (rtoc_td_t));
while ((tdp = get_rtoc_td(tdp, last_tdp, Q_MODE_1,
POINT_SESS_LAST_TRK)) != NULL) {
if (tdp->rt_session_num == sess_num) {
*last_trk_nump = tdp->rt_pmin;
return (1);
} else {
++tdp;
}
}
return (0);
}
/*
* Determine the starting LBA of the the session leadout by parsing the Raw TOC
* format of the READ TOC/PMA/ATIP command response data.
*/
static int
rtoc_get_sess_leadout_lba(uchar_t *rtoc, size_t rtoc_len, int sess_num,
uint32_t *leadout_lba)
{
rtoc_td_t *tdp = (rtoc_td_t *)(rtoc + sizeof (rtoc_hdr_t));
rtoc_td_t *last_tdp = (rtoc_td_t *)(rtoc + rtoc_len -
sizeof (rtoc_td_t));
while ((tdp = get_rtoc_td(tdp, last_tdp, Q_MODE_1,
POINT_LEADOUT_ADDR)) != NULL) {
if (tdp->rt_session_num == sess_num) {
*leadout_lba = MSF2LBA(tdp->rt_pmin, tdp->rt_psec,
tdp->rt_pframe);
return (1);
} else {
++tdp;
}
}
return (0);
}
/*
* Search a set of Raw TOC Track Descriptors using <'adr', 'point'> as the
* search key. Return a pointer to the first Track Descriptor that matches.
*/
static rtoc_td_t *
get_rtoc_td(rtoc_td_t *begin_tdp, rtoc_td_t *end_tdp, uchar_t adr,
uchar_t point)
{
rtoc_td_t *cur_tdp = begin_tdp;
while (cur_tdp <= end_tdp) {
if ((cur_tdp->rt_adr == adr) && (cur_tdp->rt_point == point))
return (cur_tdp);
else
cur_tdp++;
}
return (NULL);
}
uchar_t
get_data_mode(int fd, uint32_t lba)
{
int ret;
uchar_t *buf;
uchar_t mode;
buf = (uchar_t *)my_zalloc(8);
ret = read_header(fd, lba, buf);
if (ret == 0)
mode = 0xff;
else
mode = buf[0];
free(buf);
return (mode);
}
/*
* Set page code 5 for TAO mode.
*/
int
prepare_for_write(cd_device *dev, int track_mode, int test_write,
int keep_disc_open)
{
uchar_t *buf;
int no_err;
int reset_device;
if ((write_mode == DAO_MODE) && keep_disc_open) {
(void) printf(gettext(
"Multi-session is not supported on DVD media\n"));
exit(1);
}
if ((write_mode == DAO_MODE) && debug) {
(void) printf("Preparing to write in DAO\n");
}
(void) start_stop(dev->d_fd, 1);
/* Some drives do not support this command but still do it */
(void) rezero_unit(dev->d_fd);
buf = (uchar_t *)my_zalloc(64);
no_err = get_mode_page(dev->d_fd, 5, 0, 64, buf);
if (no_err)
no_err = ((buf[1] + 2) > 64) ? 0 : 1;
/*
* If the device is already in simulation mode and again a
* simulation is requested, then set the device in non-simulation
* 1st and then take it to simulation mode. This will flush any
* previous fake state in the drive.
*/
if (no_err && test_write && (buf[2] & 0x10)) {
reset_device = 1;
} else {
reset_device = 0;
}
if (no_err != 0) {
buf[0] &= 0x3f;
/* set TAO or DAO writing mode */
buf[2] = (write_mode == TAO_MODE)?1:2;
/* set simulation flag */
if (test_write && (!reset_device)) {
buf[2] |= 0x10;
} else {
buf[2] &= ~0x10;
}
/* Turn on HW buffer underrun protection (BUFE) */
if (!test_write) {
buf[2] |= 0x40;
}
/* set track mode type */
if (device_type == CD_RW) {
buf[3] = track_mode & 0x0f; /* ctrl nibble */
}
if (keep_disc_open) {
buf[3] |= 0xc0; /* Allow more sessions */
}
/* Select track type (audio or data) */
if (track_mode == TRACK_MODE_DATA) {
buf[4] = 8; /* 2048 byte sector */
} else {
buf[4] = 0; /* 2352 byte sector */
}
buf[7] = buf[8] = 0;
/* Need to clear these fields for setting into DAO */
if (write_mode == DAO_MODE)
buf[5] = buf[15] = 0;
/* print out mode for detailed log */
if (debug && verbose) {
int i;
(void) printf("setting = [ ");
for (i = 0; i < 15; i++)
(void) printf("0x%x ", buf[i]);
(void) printf("]\n");
}
no_err = set_mode_page(dev->d_fd, buf);
if (no_err && reset_device) {
/* Turn the test write bit back on */
buf[2] |= 0x10;
no_err = set_mode_page(dev->d_fd, buf);
}
/*
* Since BUFE is the only optional flag we are
* setting we will try to turn it off if the command
* fails.
*/
if (!no_err) {
/*
* Some old drives may not support HW
* buffer underrun protection, try again
* after turning it off.
*/
if (debug)
(void) printf("Turning off BUFE\n");
buf[2] &= ~0x40;
no_err = set_mode_page(dev->d_fd, buf);
}
}
free(buf);
return (no_err);
}
/*
* Close session. This will write TOC.
*/
int
finalize(cd_device *dev)
{
uchar_t *di;
int count, ret, err;
int immediate;
int finalize_max;
/*
* For ATAPI devices we will use the immediate mode and will
* poll the command for completion so that this command may
* not hog the channel. But for SCSI, we will use the treditional
* way of issuing the command with a large enough timeout. This
* is done because immediate mode was designed for ATAPI and some
* SCSI RW drives might not be even tested with it.
*/
if ((dev->d_inq[2] & 7) != 0) {
/* SCSI device */
immediate = 0;
} else {
/* non-SCSI (e.g ATAPI) device */
immediate = 1;
}
/* We need to close track before close session */
if (device_type == DVD_PLUS) {
if (!close_track(dev->d_fd, 0, 0, immediate))
return (0);
}
if (!close_track(dev->d_fd, 0, 1, immediate)) {
/*
* For DAO mode which we use for DVD-RW, the latest MMC
* specification does not mention close_track. Some
* newer drives will return an ILLEGAL INSTRUCTION
* which we will ignore. We have also found a Panasonic
* drive which will return a MEDIA ERROR. It is safe
* to ignore both errors as this is not needed for
* these drives.
* This is kept for older drives which had needed
* us to issue close_track to flush the cache fully.
* once we are certain these drives have cleared the
* market, this can be removed.
*/
if (device_type == DVD_MINUS) {
return (0);
}
} else {
if (!immediate)
return (1);
}
if (immediate) {
(void) sleep(10);
di = (uchar_t *)my_zalloc(DISC_INFO_BLOCK_SIZE);
err = 0;
if (device_type == CD_RW) {
/* Finalization should not take more than 6 minutes */
finalize_max = FINALIZE_TIMEOUT;
} else {
/* some DVD-RW drives take longer than 6 minutes */
finalize_max = FINALIZE_TIMEOUT*2;
}
for (count = 0; count < finalize_max; count++) {
ret = read_disc_info(dev->d_fd, di);
if (ret != 0)
break;
if (uscsi_status != 2)
err = 1;
if (SENSE_KEY(rqbuf) == 2) {
/* not ready but not becoming ready */
if (ASC(rqbuf) != 4)
err = 1;
} else if (SENSE_KEY(rqbuf) == 5) {
/* illegal mode for this track */
if (ASC(rqbuf) != 0x64)
err = 1;
} else {
err = 1;
}
if (err == 1) {
if (debug) {
(void) printf("Finalization failed\n");
(void) printf("%x %x %x %x\n",
uscsi_status, SENSE_KEY(rqbuf),
ASC(rqbuf), ASCQ(rqbuf));
}
free(di);
return (0);
}
if (uscsi_status == 2) {
int i;
/* illegal field in command packet */
if (ASC(rqbuf) == 0x24) {
/* print it out! */
(void) printf("\n");
for (i = 0; i < 18; i++)
(void) printf("%x ",
(unsigned)(rqbuf[i]));
(void) printf("\n");
}
}
(void) sleep(5);
}
free(di);
}
return (ret);
}
/*
* Find out media capacity.
*/
uint32_t
get_last_possible_lba(cd_device *dev)
{
uchar_t *di;
uint32_t cap;
di = (uchar_t *)my_zalloc(DISC_INFO_BLOCK_SIZE);
if (!read_disc_info(dev->d_fd, di)) {
free(di);
return (0);
}
/*
* If we have a DVD+R this field is an LBA. If the media is
* a CD-R/W the field is MSF formatted. Otherwise this field
* is not valid and will be zero.
*/
if (device_type == DVD_PLUS) {
if (read_scsi32(&di[20]) != 0xffffffff) {
cap = read_scsi32(&di[20]);
} else {
cap = 0;
}
} else {
if ((di[21] != 0) && (di[21] != 0xff)) {
cap = MSF2LBA(di[21], di[22], di[23]);
} else {
cap = 0;
}
}
free(di);
return (cap);
}
int
read_audio_through_read_cd(cd_device *dev, uint_t start_lba, uint_t nblks,
uchar_t *buf)
{
int retry;
int ret;
for (retry = 0; retry < 3; retry++) {
ret = read_cd(dev->d_fd, (uint32_t)start_lba, (uint16_t)nblks,
1, buf, (uint32_t)(nblks * 2352));
if (ret)
break;
}
return (ret);
}
int
eject_media(cd_device *dev)
{
if (vol_running) {
/* If there is a media, try using DKIOCEJECT 1st */
if (check_device(dev, CHECK_NO_MEDIA) == 0) {
/*
* The check_device() call will issue
* a TEST UNIT READY (TUR) and retry many
* times when a DVD-R is present. The DKIOCEJECT
* ioctl will subsequently fail causing us to
* issue the LOAD/UNLOAD SCSI command to the device
* with out ejecting the media. Insted of letting
* this happen, issue a reset to the device before
* issuing the DKIOCEJCET ioctl.
*/
if (device_type == DVD_MINUS)
reset_dev(dev->d_fd);
if (ioctl(dev->d_fd, DKIOCEJECT, 0) == 0) {
return (1);
}
}
}
if (load_unload(dev->d_fd, 0) == 0) {
/* if eject fails */
if ((uscsi_status == 2) && (ASC(rqbuf) == 0x53)) {
/*
* check that eject is not blocked on the device
*/
if (!prevent_allow_mr(dev->d_fd, 1))
return (0);
return (load_unload(dev->d_fd, 0));
}
return (0);
}
return (1);
}
/*
* Get current Read or Write Speed from Mode Page 0x2a.
*
* Use the size of the Page to determine which Multimedia Command
* set (MMC) is present. Based on the MMC version, get the
* specified Read/Write Speed.
*
* Note that some MMC versions do not necessarily support a
* (current) Read or Write Speed. As a result, this function
* _can_ return a value of zero.
*
* The newer standards (reserve and) mark the field(s) as Obsolete,
* yet many vendors populate the Obsolete fields with valid values
* (assumedly for backward compatibility). This is important, as
* a command like GET PERFORMANCE cannot return _the_ speed; it can
* only return a Logical-Block-Address-dependent (LBA) speed. Such
* values can vary widely between the innermost and outermost Track.
* Mode Page 0x2a is the best solution identifying "the current
* (nominal) speed".
*/
static uint16_t
cd_speed_get(cd_device *dev, int cmd)
{
uchar_t *mp2a;
uint16_t rate = 0;
int offset;
uint_t buflen = 254;
/*
* Allocate a buffer acceptably larger than any nominal
* Page for Page Code 0x2A.
*/
mp2a = (uchar_t *)my_zalloc(buflen);
if (get_mode_page(dev->d_fd, 0x2A, 0, buflen, mp2a) == 0)
goto end;
/* Determine MMC version based on 'Page Length' field */
switch (mp2a[1]) {
case 0x14: /* MMC-1 */
if (debug)
(void) printf("Mode Page 2A: MMC-1\n");
offset = (cmd == GET_READ_SPEED) ? 14 : 20;
rate = read_scsi16(&mp2a[offset]);
break;
case 0x18: /* MMC-2 */
if (debug)
(void) printf("Mode Page 2A: MMC-2;"
" Read and Write Speeds are "
"obsolete\n");
/* see if "Obsolete" values are valid: */
offset = (cmd == GET_READ_SPEED) ? 14 : 20;
rate = read_scsi16(&mp2a[offset]);
break;
default: /* MMC-3 or newer */
if (debug)
(void) printf("Mode Page 2A: MMC-3 or"
" newer; Read Speed is obsolete.\n");
if (cmd == GET_READ_SPEED) {
/* this is Obsolete, but try it */
offset = 14;
rate = read_scsi16(&mp2a[offset]);
} else {
/* Write Speed is not obsolete */
offset = 28;
rate = read_scsi16(&mp2a[offset]);
if (rate == 0) {
/*
* then try an Obsolete field
* (but this shouldn't happen!)
*/
offset = 20;
rate = read_scsi16(&mp2a[offset]);
}
}
break;
}
end:
free(mp2a);
if (debug)
(void) printf("cd_speed_get: %s Speed is "
"%uX\n", (cmd == GET_READ_SPEED) ?
"Read" : "Write", cdrw_bandwidth_to_x(rate));
return (rate);
}
/*
* CD speed related functions (ioctl style) for drives which do not support
* real time streaming.
*
* For the SET operations, the SET CD SPEED command needs
* both the Read Speed and the Write Speed. Eg, if
* we're trying to set the Write Speed (SET_WRITE_SPEED),
* then we first need to obtain the current Read Speed.
* That speed is specified along with the chosen_speed (the
* Write Speed in this case) in the SET CD SPEED command.
*/
int
cd_speed_ctrl(cd_device *dev, int cmd, int speed)
{
uint16_t rate;
switch (cmd) {
case GET_READ_SPEED:
rate = cd_speed_get(dev, GET_READ_SPEED);
return (cdrw_bandwidth_to_x(rate));
case GET_WRITE_SPEED:
rate = cd_speed_get(dev, GET_WRITE_SPEED);
return (cdrw_bandwidth_to_x(rate));
case SET_READ_SPEED:
rate = cd_speed_get(dev, GET_WRITE_SPEED);
return (set_cd_speed(dev->d_fd,
cdrw_x_to_bandwidth(speed), rate));
break;
case SET_WRITE_SPEED:
rate = cd_speed_get(dev, GET_READ_SPEED);
return (set_cd_speed(dev->d_fd, rate,
cdrw_x_to_bandwidth(speed)));
break;
default:
return (0);
}
}
/*
* Manage sending of SET STREAMING command using the specified
* read_speed and write_speed.
*
* This function allocates and initializes a Performance
* Descriptor, which is sent as part of the SET STREAMING
* command. The descriptor is deallocated before function
* exit.
*/
static int
do_set_streaming(cd_device *dev, uint_t read_speed,
uint_t write_speed)
{
int ret;
uchar_t *str;
/* Allocate and initialize the Performance Descriptor */
str = (uchar_t *)my_zalloc(SET_STREAM_DATA_LEN);
/* Read Time (in milliseconds) */
load_scsi32(&str[16], 1000);
/* Write Time (in milliseconds) */
load_scsi32(&str[24], 1000);
/* Read Speed */
load_scsi32(&str[12], (uint32_t)read_speed);
/* Write Speed */
load_scsi32(&str[20], (uint32_t)write_speed);
/* issue SET STREAMING command */
ret = set_streaming(dev->d_fd, str);
free(str);
return (ret);
}
/*
* cd speed related functions for drives which support
* Real-Time Streaming Feature.
*
* For the SET operations, the SET STREAMING command needs
* both the Read Speed and the Write Speed. Eg, if
* we're trying to set the Write Speed (SET_WRITE_SPEED),
* then we first need to obtain the current Read Speed.
* That speed is specified along with the chosen_speed (the
* Write Speed in this case) in the SET STREAMING command.
*/
int
rt_streaming_ctrl(cd_device *dev, int cmd, int speed)
{
int ret = 0;
uint_t rate;
switch (cmd) {
case GET_WRITE_SPEED:
rate = cd_speed_get(dev, GET_WRITE_SPEED);
ret = (int)cdrw_bandwidth_to_x(rate);
break;
case GET_READ_SPEED:
rate = cd_speed_get(dev, GET_READ_SPEED);
ret = (int)cdrw_bandwidth_to_x(rate);
break;
case SET_READ_SPEED: {
uint_t write_speed = cd_speed_get(dev, GET_WRITE_SPEED);
/* set Read Speed using SET STREAMING */
ret = do_set_streaming(dev,
cdrw_x_to_bandwidth(speed), write_speed);
/* If rt_speed_ctrl fails for any reason use cd_speed_ctrl */
if (ret == 0) {
if (debug)
(void) printf(" real time speed control"
" failed, using CD speed control\n");
dev->d_speed_ctrl = cd_speed_ctrl;
ret = dev->d_speed_ctrl(dev, cmd, speed);
}
break;
}
case SET_WRITE_SPEED: {
uint_t read_speed = cd_speed_get(dev, GET_READ_SPEED);
/* set Write Speed using SET STREAMING */
ret = do_set_streaming(dev, read_speed,
cdrw_x_to_bandwidth(speed));
/* If rt_speed_ctrl fails for any reason use cd_speed_ctrl */
if (ret == 0) {
if (debug)
(void) printf(" real time speed control"
" failed, using CD speed control\n");
dev->d_speed_ctrl = cd_speed_ctrl;
ret = dev->d_speed_ctrl(dev, cmd, speed);
}
break;
}
default:
break;
}
return (ret);
}
/*
* Initialize device for track-at-once mode of writing. All of the data will
* need to be written to the track without interruption.
* This initialized TAO by setting page code 5 and speed.
*/
void
write_init(int mode)
{
(void) printf(gettext("Initializing device"));
if (simulation)
(void) printf(gettext("(Simulation mode)"));
print_n_flush("...");
get_media_type(target->d_fd);
/* DVD- requires DAO mode */
if (device_type == DVD_MINUS) {
write_mode = DAO_MODE;
}
/* DVD+ and DVD- have no support for AUDIO, bail out */
if ((mode == TRACK_MODE_AUDIO) && (device_type != CD_RW)) {
err_msg(gettext("Audio mode is only supported for CD media\n"));
exit(1);
}
if (simulation &&
check_device(target, CHECK_MEDIA_IS_NOT_BLANK) &&
!check_device(target, CHECK_MEDIA_IS_NOT_ERASABLE) &&
device_type != DVD_PLUS_W) {
/*
* If we were in simulation mode, and media wasn't blank,
* but medium was erasable, then cdrw goes to erase the
* contents of the media after the simulation writing in order
* to cleanup the ghost TOC (see write_fini() calls blank()).
* This is bad because it removes existing data if media was
* multi-session. Therefore, we no longer allow simulation
* writing if such condition is met. we don't blank the DVD+RW
* media, so DVD+RWs are fine.
*/
err_msg(gettext(
"Cannot perform simulation for non-blank media\n"));
exit(1);
}
if (!prepare_for_write(target, mode, simulation, keep_disc_open)) {
/* l10n_NOTE : 'failed' as in Initializing device...failed */
(void) printf(gettext("failed.\n"));
err_msg(gettext("Cannot initialize device for write\n"));
exit(1);
}
/* l10n_NOTE : 'done' as in "Initializing device...done" */
(void) printf(gettext("done.\n"));
/* if speed change option was used (-p) then try to set the speed */
if (requested_speed != 0) {
if (verbose)
(void) printf(gettext("Trying to set speed to %dX.\n"),
requested_speed);
if (target->d_speed_ctrl(target, SET_WRITE_SPEED,
requested_speed) == 0) {
err_msg(gettext("Unable to set speed.\n"));
exit(1);
}
if (verbose) {
int speed;
speed = target->d_speed_ctrl(target,
GET_WRITE_SPEED, 0);
if (speed == requested_speed) {
(void) printf(gettext("Speed set to %dX.\n"),
speed);
} else if (speed == 0) {
(void) printf(gettext("Could not obtain "
"current Write Speed.\n"));
} else {
(void) printf(
gettext("Speed set to closest approximation "
"of %dX allowed by device (%dX).\n"),
requested_speed, speed);
}
}
}
}
void
write_fini(void)
{
print_n_flush(gettext("Finalizing (Can take several minutes)..."));
/* Some drives don't like this while in test write mode */
if (!simulation) {
if (!finalize(target)) {
/*
* It is possible that the drive is busy writing the
* buffered portion. So do not get upset yet.
*/
(void) sleep(10);
if (!finalize(target)) {
if (debug) {
(void) printf("status %x, %x/%x/%x\n",
uscsi_status, SENSE_KEY(rqbuf),
ASC(rqbuf), ASCQ(rqbuf));
}
/*
* Different vendor drives return different
* sense error info for CLOSE SESSION command.
* The Panasonic drive that we are using is
* one such drive.
*/
if (device_type == DVD_MINUS) {
if (verbose) {
(void) printf(
"skipping finalizing\n");
}
} else {
/* l10n_NOTE : 'failed' as in finishing up...failed */
(void) printf(gettext("failed.\n"));
err_msg(gettext(
"Could not finalize the disc.\n"));
exit(1);
}
}
}
if (vol_running) {
(void) eject_media(target);
}
} else if (check_device(target, CHECK_MEDIA_IS_NOT_BLANK)) {
/*
* Some drives such as the pioneer A04 will retain a
* ghost TOC after a simulation write is done. The
* media will actually be blank, but the drive will
* report a TOC. There is currently no other way to
* re-initialize the media other than ejecting or
* to ask the drive to clear the leadout. The laser
* is currently off so nothing is written to the
* media (on a good behaving drive).
* NOTE that a device reset does not work to make
* the drive re-initialize the media.
*/
blanking_type = "clear_ghost";
blank();
}
/* l10n_NOTE : 'done' as in "Finishing up...done" */
(void) printf(gettext("done.\n"));
}