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-rw-r--r--libmpdvdkit2/bsdi_ioctl.c698
1 files changed, 698 insertions, 0 deletions
diff --git a/libmpdvdkit2/bsdi_ioctl.c b/libmpdvdkit2/bsdi_ioctl.c
new file mode 100644
index 0000000000..d12c57fc31
--- /dev/null
+++ b/libmpdvdkit2/bsdi_ioctl.c
@@ -0,0 +1,698 @@
+#include "config.h"
+
+/*
+ * Hacked version of the linux cdrom.c kernel module - everything except the
+ * DVD handling ripped out and the rest rewritten to use raw SCSI commands
+ * on BSD/OS 4.2 (but should work with earlier versions as well).
+*/
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include </sys/dev/scsi/scsi.h>
+#include </sys/dev/scsi/scsi_ioctl.h>
+
+#include "bsdi_dvd.h"
+
+/*
+ * Now get rid of the override/intercept macro so we can call the real ioctl()
+ * routine!
+*/
+#undef ioctl
+
+#define CMD_READ_10 0x28
+#define CMD_READ_TOC_PMA_ATIP 0x43
+#define CMD_READ_CD 0xbe
+#define CMD_START_STOP_UNIT 0x1b
+
+#define CMD_SEND_KEY 0xa3
+#define CMD_REPORT_KEY 0xa4
+#define CMD_READ_DVD_STRUCTURE 0xad
+
+#define copy_key(dest,src) memcpy((dest), (src), sizeof(dvd_key))
+#define copy_chal(dest,src) memcpy((dest), (src), sizeof(dvd_challenge))
+
+/* Define the Cdrom Generic Command structure */
+typedef struct cgc
+ {
+ u_char cdb[12];
+ u_char *buf;
+ int buflen;
+ int rw;
+ int timeout;
+ scsi_user_sense_t *sus;
+ } cgc_t;
+
+static int scsi_cmd(int, cgc_t *);
+static int cdrom_ioctl(int, u_long, void *);
+static int cdrom_tray_move(int, int);
+static int dvd_ioctl(int, u_long, void *);
+static int debug;
+
+void dvd_cdrom_debug(int flag)
+ {
+ debug = flag;
+ }
+
+/*
+ * This is the published entry point. Actually applications should simply
+ * include <dvd.h> and not refer to this at all.
+*/
+int dvd_cdrom_ioctl(int fd, unsigned long cmd, void *arg)
+ {
+ switch (cmd)
+ {
+ case DVD_AUTH:
+ case DVD_READ_STRUCT:
+ return(dvd_ioctl(fd, cmd, arg));
+ case CDROMREADTOCHDR:
+ case CDROMREADTOCENTRY:
+ case CDROMEJECT:
+ case CDROMREADRAW:
+ case CDROMREADMODE2:
+ case CDROMCLOSETRAY:
+ case CDROM_DRIVE_STATUS:
+ return(cdrom_ioctl(fd, cmd, arg));
+ default:
+ return(ioctl(fd, cmd, arg));
+ }
+ }
+
+static void setup_report_key(cgc_t *cgc, u_int agid, u_int type)
+ {
+
+ cgc->cdb[0] = CMD_REPORT_KEY;
+ cgc->cdb[10] = type | (agid << 6);
+ switch (type)
+ {
+ case 0:
+ case 5:
+ case 8:
+ cgc->buflen = 8;
+ break;
+ case 1:
+ cgc->buflen = 16;
+ break;
+ case 2:
+ case 4:
+ cgc->buflen = 12;
+ break;
+ }
+ cgc->cdb[9] = cgc->buflen;
+ cgc->rw = SUC_READ;;
+ }
+
+static void setup_send_key(cgc_t *cgc, u_int agid, u_int type)
+ {
+
+ cgc->cdb[0] = CMD_SEND_KEY;
+ cgc->cdb[10] = type | (agid << 6);
+ switch (type)
+ {
+ case 1:
+ cgc->buflen = 16;
+ break;
+ case 3:
+ cgc->buflen = 12;
+ break;
+ case 6:
+ cgc->buflen = 8;
+ break;
+ }
+ cgc->cdb[9] = cgc->buflen;
+ cgc->rw = SUC_WRITE;
+ }
+
+static void cgc_init(cgc_t *cgc, void *buf, int len, int type)
+ {
+
+ memset(cgc, 0, sizeof (*cgc));
+ if (buf)
+ memset(buf, 0, len);
+ cgc->buf = (u_char *)buf;
+ cgc->buflen = len;
+ cgc->rw = type;
+ cgc->timeout = 5; /* 5 second timeout */
+ }
+
+static int dvd_do_auth(int fd, dvd_authinfo *ai)
+ {
+ int ret;
+ u_char buf[20];
+ cgc_t cgc;
+ rpc_state_t rpc_state;
+
+ memset(buf, 0, sizeof(buf));
+ cgc_init(&cgc, buf, 0, SUC_READ);
+
+ switch (ai->type)
+ {
+ case DVD_LU_SEND_AGID: /* LU data send */
+ setup_report_key(&cgc, ai->lsa.agid, 0);
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ ai->lsa.agid = buf[7] >> 6;
+ break;
+ case DVD_LU_SEND_KEY1:
+ setup_report_key(&cgc, ai->lsk.agid, 2);
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ copy_key(ai->lsk.key, &buf[4]);
+ break;
+ case DVD_LU_SEND_CHALLENGE:
+ setup_report_key(&cgc, ai->lsc.agid, 1);
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ copy_chal(ai->lsc.chal, &buf[4]);
+ break;
+ case DVD_LU_SEND_TITLE_KEY: /* Post-auth key */
+ setup_report_key(&cgc, ai->lstk.agid, 4);
+ cgc.cdb[5] = ai->lstk.lba;
+ cgc.cdb[4] = ai->lstk.lba >> 8;
+ cgc.cdb[3] = ai->lstk.lba >> 16;
+ cgc.cdb[2] = ai->lstk.lba >> 24;
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ ai->lstk.cpm = (buf[4] >> 7) & 1;
+ ai->lstk.cp_sec = (buf[4] >> 6) & 1;
+ ai->lstk.cgms = (buf[4] >> 4) & 3;
+ copy_key(ai->lstk.title_key, &buf[5]);
+ break;
+ case DVD_LU_SEND_ASF:
+ setup_report_key(&cgc, ai->lsasf.agid, 5);
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ ai->lsasf.asf = buf[7] & 1;
+ break;
+ case DVD_HOST_SEND_CHALLENGE: /* LU data receive (LU changes state) */
+ setup_send_key(&cgc, ai->hsc.agid, 1);
+ buf[1] = 0xe;
+ copy_chal(&buf[4], ai->hsc.chal);
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ ai->type = DVD_LU_SEND_KEY1;
+ break;
+ case DVD_HOST_SEND_KEY2:
+ setup_send_key(&cgc, ai->hsk.agid, 3);
+ buf[1] = 0xa;
+ copy_key(&buf[4], ai->hsk.key);
+ if (ret = scsi_cmd(fd, &cgc))
+ {
+ ai->type = DVD_AUTH_FAILURE;
+ return ret;
+ }
+ ai->type = DVD_AUTH_ESTABLISHED;
+ break;
+ case DVD_INVALIDATE_AGID:
+ setup_report_key(&cgc, ai->lsa.agid, 0x3f);
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ break;
+ case DVD_LU_SEND_RPC_STATE: /* Get region settings */
+ setup_report_key(&cgc, 0, 8);
+ memset(&rpc_state, 0, sizeof(rpc_state_t));
+ cgc.buf = (char *) &rpc_state;
+ if (ret = scsi_cmd(fd, &cgc))
+ {
+ ai->lrpcs.type = 0;
+ ai->lrpcs.rpc_scheme = 0;
+ }
+ else
+ {
+ ai->lrpcs.type = rpc_state.type_code;
+ ai->lrpcs.vra = rpc_state.vra;
+ ai->lrpcs.ucca = rpc_state.ucca;
+ ai->lrpcs.region_mask = rpc_state.region_mask;
+ ai->lrpcs.rpc_scheme = rpc_state.rpc_scheme;
+ }
+ break;
+ case DVD_HOST_SEND_RPC_STATE: /* Set region settings */
+ setup_send_key(&cgc, 0, 6);
+ buf[1] = 6;
+ buf[4] = ai->hrpcs.pdrc;
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ break;
+ default:
+ return EINVAL;
+ }
+ return 0;
+ }
+
+static int dvd_read_physical(int fd, dvd_struct *s)
+ {
+ int ret, i;
+ u_char buf[4 + 4 * 20], *base;
+ struct dvd_layer *layer;
+ cgc_t cgc;
+
+ cgc_init(&cgc, buf, sizeof(buf), SUC_READ);
+ cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
+ cgc.cdb[6] = s->physical.layer_num;
+ cgc.cdb[7] = s->type;
+ cgc.cdb[9] = cgc.buflen & 0xff;
+
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+
+ base = &buf[4];
+ layer = &s->physical.layer[0];
+
+ /* place the data... really ugly, but at least we won't have to
+ worry about endianess in userspace or here. */
+ for (i = 0; i < 4; ++i, base += 20, ++layer)
+ {
+ memset(layer, 0, sizeof(*layer));
+ layer->book_version = base[0] & 0xf;
+ layer->book_type = base[0] >> 4;
+ layer->min_rate = base[1] & 0xf;
+ layer->disc_size = base[1] >> 4;
+ layer->layer_type = base[2] & 0xf;
+ layer->track_path = (base[2] >> 4) & 1;
+ layer->nlayers = (base[2] >> 5) & 3;
+ layer->track_density = base[3] & 0xf;
+ layer->linear_density = base[3] >> 4;
+ layer->start_sector = base[5] << 16 | base[6] << 8 | base[7];
+ layer->end_sector = base[9] << 16 | base[10] << 8 | base[11];
+ layer->end_sector_l0 = base[13] << 16 | base[14] << 8 | base[15];
+ layer->bca = base[16] >> 7;
+ }
+ return 0;
+ }
+
+static int dvd_read_copyright(int fd, dvd_struct *s)
+ {
+ int ret;
+ u_char buf[8];
+ cgc_t cgc;
+
+ cgc_init(&cgc, buf, sizeof(buf), SUC_READ);
+ cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
+ cgc.cdb[6] = s->copyright.layer_num;
+ cgc.cdb[7] = s->type;
+ cgc.cdb[8] = cgc.buflen >> 8;
+ cgc.cdb[9] = cgc.buflen & 0xff;
+
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ s->copyright.cpst = buf[4];
+ s->copyright.rmi = buf[5];
+ return 0;
+ }
+
+static int dvd_read_disckey(int fd, dvd_struct *s)
+ {
+ int ret, size;
+ u_char *buf;
+ cgc_t cgc;
+
+ size = sizeof(s->disckey.value) + 4;
+
+ if ((buf = (u_char *) malloc(size)) == NULL)
+ return ENOMEM;
+
+ cgc_init(&cgc, buf, size, SUC_READ);
+ cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
+ cgc.cdb[7] = s->type;
+ cgc.cdb[8] = size >> 8;
+ cgc.cdb[9] = size & 0xff;
+ cgc.cdb[10] = s->disckey.agid << 6;
+
+ if (!(ret = scsi_cmd(fd, &cgc)))
+ memcpy(s->disckey.value, &buf[4], sizeof(s->disckey.value));
+ free(buf);
+ return ret;
+ }
+
+static int dvd_read_bca(int fd, dvd_struct *s)
+ {
+ int ret;
+ u_char buf[4 + 188];
+ cgc_t cgc;
+
+ cgc_init(&cgc, buf, sizeof(buf), SUC_READ);
+ cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
+ cgc.cdb[7] = s->type;
+ cgc.cdb[9] = cgc.buflen = 0xff;
+
+ if (ret = scsi_cmd(fd, &cgc))
+ return ret;
+ s->bca.len = buf[0] << 8 | buf[1];
+ if (s->bca.len < 12 || s->bca.len > 188)
+ return EIO;
+ memcpy(s->bca.value, &buf[4], s->bca.len);
+ return 0;
+ }
+
+static int dvd_read_manufact(int fd, dvd_struct *s)
+ {
+ int ret = 0, size;
+ u_char *buf;
+ cgc_t cgc;
+
+ size = sizeof(s->manufact.value) + 4;
+
+ if ((buf = (u_char *) malloc(size)) == NULL)
+ return ENOMEM;
+
+ cgc_init(&cgc, buf, size, SUC_READ);
+ cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
+ cgc.cdb[7] = s->type;
+ cgc.cdb[8] = size >> 8;
+ cgc.cdb[9] = size & 0xff;
+
+ if (ret = scsi_cmd(fd, &cgc))
+ {
+ free(buf);
+ return ret;
+ }
+ s->manufact.len = buf[0] << 8 | buf[1];
+ if (s->manufact.len < 0 || s->manufact.len > 2048)
+ ret = -EIO;
+ else
+ memcpy(s->manufact.value, &buf[4], s->manufact.len);
+ free(buf);
+ return ret;
+ }
+
+static int dvd_read_struct(int fd, dvd_struct *s)
+ {
+ switch (s->type)
+ {
+ case DVD_STRUCT_PHYSICAL:
+ return dvd_read_physical(fd, s);
+ case DVD_STRUCT_COPYRIGHT:
+ return dvd_read_copyright(fd, s);
+ case DVD_STRUCT_DISCKEY:
+ return dvd_read_disckey(fd, s);
+ case DVD_STRUCT_BCA:
+ return dvd_read_bca(fd, s);
+ case DVD_STRUCT_MANUFACT:
+ return dvd_read_manufact(fd, s);
+ default:
+ return EINVAL;
+ }
+ }
+
+static u_char scsi_cdblen[8] = {6, 10, 10, 12, 12, 12, 10, 10};
+
+static int scsi_cmd(int fd, cgc_t *cgc)
+ {
+ int scsistatus, cdblen;
+ unsigned char *cp;
+ struct scsi_user_cdb suc;
+
+ /* safety checks */
+ if (cgc->rw != SUC_READ && cgc->rw != SUC_WRITE)
+ return(EINVAL);
+
+ suc.suc_flags = cgc->rw;
+ cdblen = scsi_cdblen[(cgc->cdb[0] >> 5) & 7];
+ suc.suc_cdblen = cdblen;
+ bcopy(cgc->cdb, suc.suc_cdb, cdblen);
+ suc.suc_data = cgc->buf;
+ suc.suc_datalen = cgc->buflen;
+ suc.suc_timeout = cgc->timeout;
+ if (ioctl(fd, SCSIRAWCDB, &suc) == -1)
+ return(errno);
+ scsistatus = suc.suc_sus.sus_status;
+
+/*
+ * If the device returns a scsi sense error and debugging is enabled print
+ * some hopefully useful information on stderr.
+*/
+ if (scsistatus && debug)
+ {
+ cp = suc.suc_sus.sus_sense;
+ fprintf(stderr,"scsistatus = %x cmd = %x\n",
+ scsistatus, cgc->cdb[0]);
+ fprintf(stderr, "sense %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x\n",
+ cp[0], cp[1], cp[2], cp[3], cp[4], cp[5],
+ cp[6], cp[7], cp[8], cp[9], cp[10], cp[11],
+ cp[12], cp[13], cp[14], cp[15]);
+ }
+ if (cgc->sus)
+ bcopy(&suc.suc_sus, cgc->sus, sizeof (struct scsi_user_sense));
+ if (scsistatus)
+ return(EIO); /* generic i/o error for unsuccessful status */
+ return(0);
+ }
+
+/*
+ * The entry point for the DVDioctls for BSD/OS.
+*/
+static int dvd_ioctl(int fd, u_long cmd, void *arg)
+ {
+ int ret;
+
+ switch (cmd)
+ {
+ case DVD_READ_STRUCT:
+ ret = dvd_read_struct(fd, (dvd_struct *)arg);
+ if (ret)
+ errno = ret;
+ return(ret ? -1 : 0);
+ case DVD_AUTH:
+ ret = dvd_do_auth (fd, (dvd_authinfo *)arg);
+ if (ret)
+ errno = ret;
+ return(ret ? -1 : 0);
+ default:
+ errno = EINVAL;
+ return(-1);
+ }
+ }
+
+/*
+ * The entry point for the CDROMioctls for BSD/OS
+*/
+static int cdrom_read_block(int, cgc_t *, int, int, int, int);
+static int cdrom_read_cd(int, cgc_t *, int, int, int );
+ int cdrom_blocksize(int, int );
+
+static inline
+int msf_to_lba(char m, char s, char f)
+{
+ return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
+}
+
+cdrom_ioctl(int fd, u_long cmd, void *arg)
+ {
+ int ret;
+ cgc_t cgc;
+
+ switch (cmd)
+ {
+ case CDROMREADRAW:
+ case CDROMREADMODE1:
+ case CDROMREADMODE2:
+ {
+ struct cdrom_msf *msf;
+ int blocksize = 0, format = 0, lba;
+
+ switch (cmd)
+ {
+ case CDROMREADRAW:
+ blocksize = CD_FRAMESIZE_RAW;
+ break;
+ case CDROMREADMODE1:
+ blocksize = CD_FRAMESIZE;
+ format = 2;
+ break;
+ case CDROMREADMODE2:
+ blocksize = CD_FRAMESIZE_RAW0;
+ break;
+ }
+ msf = (struct cdrom_msf *)arg;
+ lba = msf_to_lba(msf->cdmsf_min0,msf->cdmsf_sec0,
+ msf->cdmsf_frame0);
+ ret = EINVAL;
+ if (lba < 0)
+ break;
+
+ cgc_init(&cgc, arg, blocksize, SUC_READ);
+ ret = cdrom_read_block(fd, &cgc, lba, 1, format, blocksize);
+ if (ret)
+ {
+/*
+ * SCSI-II devices are not required to support CMD_READ_CD (which specifies
+ * the blocksize to read) so try switching the block size with a mode select,
+ * doing the normal read sector command and then changing the sector size back
+ * to 2048.
+ *
+ * If the program dies before changing the blocksize back sdopen()
+ * in the kernel will fail opens with a message that looks something like:
+ *
+ * "sr1: blksize 2336 not multiple of 512: cannot use"
+ *
+ * At that point the drive has to be power cycled (or reset in some other way).
+*/
+ if (ret = cdrom_blocksize(fd, blocksize))
+ break;
+ ret = cdrom_read_cd(fd, &cgc, lba, blocksize, 1);
+ ret |= cdrom_blocksize(fd, 2048);
+ }
+ break;
+ }
+ case CDROMREADTOCHDR:
+ {
+ struct cdrom_tochdr *tochdr = (struct cdrom_tochdr *) arg;
+ u_char buffer[12];
+
+ cgc_init(&cgc, buffer, sizeof (buffer), SUC_READ);
+ cgc.cdb[0] = CMD_READ_TOC_PMA_ATIP;
+ cgc.cdb[1] = 0x2; /* MSF */
+ cgc.cdb[8] = 12; /* LSB of length */
+
+ ret = scsi_cmd(fd, &cgc);
+ if (!ret)
+ {
+ tochdr->cdth_trk0 = buffer[2];
+ tochdr->cdth_trk1 = buffer[3];
+ }
+ break;
+ }
+ case CDROMREADTOCENTRY:
+ {
+ struct cdrom_tocentry *tocentry = (struct cdrom_tocentry *) arg;
+ u_char buffer[12];
+
+ cgc_init(&cgc, buffer, sizeof (buffer), SUC_READ);
+ cgc.cdb[0] = CMD_READ_TOC_PMA_ATIP;
+ cgc.cdb[1] = (tocentry->cdte_format == CDROM_MSF) ? 0x02 : 0;
+ cgc.cdb[6] = tocentry->cdte_track;
+ cgc.cdb[8] = 12; /* LSB of length */
+
+ ret = scsi_cmd(fd, &cgc);
+ if (ret)
+ break;
+
+ tocentry->cdte_ctrl = buffer[5] & 0xf;
+ tocentry->cdte_adr = buffer[5] >> 4;
+ tocentry->cdte_datamode = (tocentry->cdte_ctrl & 0x04) ? 1 : 0;
+ if (tocentry->cdte_format == CDROM_MSF)
+ {
+ tocentry->cdte_addr.msf.minute = buffer[9];
+ tocentry->cdte_addr.msf.second = buffer[10];
+ tocentry->cdte_addr.msf.frame = buffer[11];
+ }
+ else
+ tocentry->cdte_addr.lba = (((((buffer[8] << 8)
+ + buffer[9]) << 8)
+ + buffer[10]) << 8)
+ + buffer[11];
+ break;
+ }
+ case CDROMEJECT: /* NO-OP for now */
+ ret = cdrom_tray_move(fd, 1);
+ break;
+ case CDROMCLOSETRAY:
+ ret = cdrom_tray_move(fd, 0);
+ break;
+/*
+ * This sucks but emulates the expected behaviour. Instead of the return
+ * value being the actual status a success/fail indicator should have been
+ * returned and the 3rd arg to the ioctl should have been an 'int *' to update
+ * with the actual status.
+*/
+ case CDROM_DRIVE_STATUS:
+ return(CDS_NO_INFO);
+ break;
+ }
+ errno = ret;
+ return(ret ? -1 : 0);
+ }
+
+static int cdrom_read_cd(int fd, cgc_t *cgc, int lba, int blocksize, int nblocks)
+ {
+
+ memset(&cgc->cdb, 0, sizeof(cgc->cdb));
+ cgc->cdb[0] = CMD_READ_10;
+ cgc->cdb[2] = (lba >> 24) & 0xff;
+ cgc->cdb[3] = (lba >> 16) & 0xff;
+ cgc->cdb[4] = (lba >> 8) & 0xff;
+ cgc->cdb[5] = lba & 0xff;
+ cgc->cdb[6] = (nblocks >> 16) & 0xff;
+ cgc->cdb[7] = (nblocks >> 8) & 0xff;
+ cgc->cdb[8] = nblocks & 0xff;
+ cgc->buflen = blocksize * nblocks;
+ return(scsi_cmd(fd, cgc));
+ }
+
+static int cdrom_read_block(int fd, cgc_t *cgc,
+ int lba, int nblocks, int format, int blksize)
+ {
+
+ memset(&cgc->cdb, 0, sizeof(cgc->cdb));
+ cgc->cdb[0] = CMD_READ_CD;
+ /* expected sector size - cdda,mode1,etc. */
+ cgc->cdb[1] = format << 2;
+ /* starting address */
+ cgc->cdb[2] = (lba >> 24) & 0xff;
+ cgc->cdb[3] = (lba >> 16) & 0xff;
+ cgc->cdb[4] = (lba >> 8) & 0xff;
+ cgc->cdb[5] = lba & 0xff;
+ /* number of blocks */
+ cgc->cdb[6] = (nblocks >> 16) & 0xff;
+ cgc->cdb[7] = (nblocks >> 8) & 0xff;
+ cgc->cdb[8] = nblocks & 0xff;
+ cgc->buflen = blksize * nblocks;
+
+ /* set the header info returned */
+ switch (blksize)
+ {
+ case CD_FRAMESIZE_RAW0:
+ cgc->cdb[9] = 0x58;
+ break;
+ case CD_FRAMESIZE_RAW1:
+ cgc->cdb[9] = 0x78;
+ break;
+ case CD_FRAMESIZE_RAW:
+ cgc->cdb[9] = 0xf8;
+ break;
+ default:
+ cgc->cdb[9] = 0x10;
+ }
+ return(scsi_cmd(fd, cgc));
+ }
+
+static int cdrom_tray_move(int fd, int flag)
+ {
+ cgc_t cgc;
+
+ cgc_init(&cgc, NULL, 0, SUC_READ);
+ cgc.cdb[0] = CMD_START_STOP_UNIT;
+ cgc.cdb[1] = 1; /* immediate */
+ cgc.cdb[4] = flag ? 0x2 : 0x3; /* eject : close */
+ return(scsi_cmd(fd, &cgc));
+ }
+
+/*
+ * Required when we need to use READ_10 to issue other than 2048 block
+ * reads
+ */
+int cdrom_blocksize(int fd, int size)
+ {
+ cgc_t cgc;
+ struct modesel_head mh;
+
+ memset(&mh, 0, sizeof(mh));
+ mh.block_desc_length = 0x08;
+ mh.block_length_med = (size >> 8) & 0xff;
+ mh.block_length_lo = size & 0xff;
+
+ memset(&cgc, 0, sizeof(cgc));
+ cgc.cdb[0] = 0x15;
+ cgc.cdb[1] = 1 << 4;
+ cgc.cdb[4] = 12;
+ cgc.buflen = sizeof(mh);
+ cgc.buf = (u_char *) &mh;
+ cgc.rw = SUC_WRITE;
+ mh.block_desc_length = 0x08;
+ mh.block_length_med = (size >> 8) & 0xff;
+ mh.block_length_lo = size & 0xff;
+ return(scsi_cmd(fd, &cgc));
+ }
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 05:44:45 +0000