patch-1.3.5 linux/drivers/scsi/sr_ioctl.c
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- Lines: 807
- Date:
Thu Jun 29 12:37:45 1995
- Orig file:
v1.3.4/linux/drivers/scsi/sr_ioctl.c
- Orig date:
Tue Jun 27 14:11:38 1995
diff -u --recursive --new-file v1.3.4/linux/drivers/scsi/sr_ioctl.c linux/drivers/scsi/sr_ioctl.c
@@ -22,14 +22,14 @@
static void sr_ioctl_done(Scsi_Cmnd * SCpnt)
{
- struct request * req;
-
- req = &SCpnt->request;
- req->dev = 0xfffe; /* Busy, but indicate request done */
-
- if (req->sem != NULL) {
- up(req->sem);
- }
+ struct request * req;
+
+ req = &SCpnt->request;
+ req->dev = 0xfffe; /* Busy, but indicate request done */
+
+ if (req->sem != NULL) {
+ up(req->sem);
+ }
}
/* We do our own retries because we want to know what the specific
@@ -38,39 +38,39 @@
static int do_ioctl(int target, unsigned char * sr_cmd, void * buffer, unsigned buflength)
{
- Scsi_Cmnd * SCpnt;
- int result;
-
- SCpnt = allocate_device(NULL, scsi_CDs[target].device, 1);
- scsi_do_cmd(SCpnt,
- (void *) sr_cmd, buffer, buflength, sr_ioctl_done,
- IOCTL_TIMEOUT, IOCTL_RETRIES);
-
-
- if (SCpnt->request.dev != 0xfffe){
- struct semaphore sem = MUTEX_LOCKED;
- SCpnt->request.sem = &sem;
- down(&sem);
- /* Hmm.. Have to ask about this */
- while (SCpnt->request.dev != 0xfffe) schedule();
- };
-
- result = SCpnt->result;
-
-/* Minimal error checking. Ignore cases we know about, and report the rest. */
- if(driver_byte(result) != 0)
- switch(SCpnt->sense_buffer[2] & 0xf) {
- case UNIT_ATTENTION:
+ Scsi_Cmnd * SCpnt;
+ int result;
+
+ SCpnt = allocate_device(NULL, scsi_CDs[target].device, 1);
+ scsi_do_cmd(SCpnt,
+ (void *) sr_cmd, buffer, buflength, sr_ioctl_done,
+ IOCTL_TIMEOUT, IOCTL_RETRIES);
+
+
+ if (SCpnt->request.dev != 0xfffe){
+ struct semaphore sem = MUTEX_LOCKED;
+ SCpnt->request.sem = &sem;
+ down(&sem);
+ /* Hmm.. Have to ask about this */
+ while (SCpnt->request.dev != 0xfffe) schedule();
+ };
+
+ result = SCpnt->result;
+
+ /* Minimal error checking. Ignore cases we know about, and report the rest. */
+ if(driver_byte(result) != 0)
+ switch(SCpnt->sense_buffer[2] & 0xf) {
+ case UNIT_ATTENTION:
scsi_CDs[target].device->changed = 1;
printk("Disc change detected.\n");
break;
- case NOT_READY: /* This happens if there is no disc in drive */
+ case NOT_READY: /* This happens if there is no disc in drive */
printk("CDROM not ready. Make sure there is a disc in the drive.\n");
break;
- case ILLEGAL_REQUEST:
+ case ILLEGAL_REQUEST:
printk("CDROM (ioctl) reports ILLEGAL REQUEST.\n");
break;
- default:
+ default:
printk("SCSI CD error: host %d id %d lun %d return code = %03x\n",
scsi_CDs[target].device->host->host_no,
scsi_CDs[target].device->id,
@@ -82,354 +82,354 @@
SCpnt->sense_buffer[2] & 0xf);
};
-
- result = SCpnt->result;
- SCpnt->request.dev = -1; /* Deallocate */
- wake_up(&SCpnt->device->device_wait);
- /* Wake up a process waiting for device*/
- return result;
+
+ result = SCpnt->result;
+ SCpnt->request.dev = -1; /* Deallocate */
+ wake_up(&SCpnt->device->device_wait);
+ /* Wake up a process waiting for device*/
+ return result;
}
int sr_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
{
- u_char sr_cmd[10];
-
- int dev = inode->i_rdev;
- int result, target, err;
-
- target = MINOR(dev);
-
- if (target >= sr_template.nr_dev ||
- !scsi_CDs[target].device) return -ENXIO;
-
- switch (cmd)
- {
- /* Sun-compatible */
- case CDROMPAUSE:
-
- sr_cmd[0] = SCMD_PAUSE_RESUME;
- sr_cmd[1] = scsi_CDs[target].device->lun << 5;
- sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = 0;
- sr_cmd[5] = sr_cmd[6] = sr_cmd[7] = 0;
- sr_cmd[8] = 0;
- sr_cmd[9] = 0;
-
- result = do_ioctl(target, sr_cmd, NULL, 255);
- return result;
-
- case CDROMRESUME:
-
- sr_cmd[0] = SCMD_PAUSE_RESUME;
- sr_cmd[1] = scsi_CDs[target].device->lun << 5;
- sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = 0;
- sr_cmd[5] = sr_cmd[6] = sr_cmd[7] = 0;
- sr_cmd[8] = 1;
- sr_cmd[9] = 0;
-
- result = do_ioctl(target, sr_cmd, NULL, 255);
-
- return result;
-
- case CDROMPLAYMSF:
- {
- struct cdrom_msf msf;
- memcpy_fromfs(&msf, (void *) arg, sizeof(msf));
-
- sr_cmd[0] = SCMD_PLAYAUDIO_MSF;
- sr_cmd[1] = scsi_CDs[target].device->lun << 5;
- sr_cmd[2] = 0;
- sr_cmd[3] = msf.cdmsf_min0;
- sr_cmd[4] = msf.cdmsf_sec0;
- sr_cmd[5] = msf.cdmsf_frame0;
- sr_cmd[6] = msf.cdmsf_min1;
- sr_cmd[7] = msf.cdmsf_sec1;
- sr_cmd[8] = msf.cdmsf_frame1;
- sr_cmd[9] = 0;
-
- result = do_ioctl(target, sr_cmd, NULL, 255);
- return result;
- }
-
- case CDROMPLAYTRKIND:
- {
- struct cdrom_ti ti;
- memcpy_fromfs(&ti, (void *) arg, sizeof(ti));
-
- sr_cmd[0] = SCMD_PLAYAUDIO_TI;
- sr_cmd[1] = scsi_CDs[target].device->lun << 5;
- sr_cmd[2] = 0;
- sr_cmd[3] = 0;
- sr_cmd[4] = ti.cdti_trk0;
- sr_cmd[5] = ti.cdti_ind0;
- sr_cmd[6] = 0;
- sr_cmd[7] = ti.cdti_trk1;
- sr_cmd[8] = ti.cdti_ind1;
- sr_cmd[9] = 0;
-
- result = do_ioctl(target, sr_cmd, NULL, 255);
-
- return result;
- }
-
- case CDROMREADTOCHDR:
- {
- struct cdrom_tochdr tochdr;
- char * buffer;
-
- sr_cmd[0] = SCMD_READ_TOC;
- sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 0x02; /* MSF format */
- sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = sr_cmd[5] = 0;
- sr_cmd[6] = 0;
- sr_cmd[7] = 0; /* MSB of length (12) */
- sr_cmd[8] = 12; /* LSB of length */
- sr_cmd[9] = 0;
-
- buffer = (unsigned char *) scsi_malloc(512);
- if(!buffer) return -ENOMEM;
-
- result = do_ioctl(target, sr_cmd, buffer, 12);
-
- tochdr.cdth_trk0 = buffer[2];
- tochdr.cdth_trk1 = buffer[3];
-
- scsi_free(buffer, 512);
-
- err = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct cdrom_tochdr));
- if (err)
- return err;
- memcpy_tofs ((void *) arg, &tochdr, sizeof (struct cdrom_tochdr));
-
- return result;
- }
-
- case CDROMREADTOCENTRY:
- {
- struct cdrom_tocentry tocentry;
- char * buffer;
-
- verify_area (VERIFY_READ, (void *) arg, sizeof (struct cdrom_tocentry));
- memcpy_fromfs (&tocentry, (void *) arg, sizeof (struct cdrom_tocentry));
-
- sr_cmd[0] = SCMD_READ_TOC;
- sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 0x02; /* MSF format */
- sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = sr_cmd[5] = 0;
- sr_cmd[6] = tocentry.cdte_track;
- sr_cmd[7] = 0; /* MSB of length (12) */
- sr_cmd[8] = 12; /* LSB of length */
- sr_cmd[9] = 0;
-
- buffer = (unsigned char *) scsi_malloc(512);
- if(!buffer) return -ENOMEM;
-
- result = do_ioctl (target, sr_cmd, buffer, 12);
-
- 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];
- tocentry.cdte_ctrl = buffer[5] & 0xf;
- }
- else
- tocentry.cdte_addr.lba = (int) buffer[0];
-
- scsi_free(buffer, 512);
-
- err = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct cdrom_tocentry));
- if (err)
- return err;
- memcpy_tofs ((void *) arg, &tocentry, sizeof (struct cdrom_tocentry));
-
- return result;
- }
-
- case CDROMSTOP:
- sr_cmd[0] = START_STOP;
- sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 1;
- sr_cmd[2] = sr_cmd[3] = sr_cmd[5] = 0;
- sr_cmd[4] = 0;
-
- result = do_ioctl(target, sr_cmd, NULL, 255);
- return result;
-
- case CDROMSTART:
- sr_cmd[0] = START_STOP;
- sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 1;
- sr_cmd[2] = sr_cmd[3] = sr_cmd[5] = 0;
- sr_cmd[4] = 1;
-
- result = do_ioctl(target, sr_cmd, NULL, 255);
- return result;
-
- case CDROMEJECT:
- if (scsi_CDs[target].device -> access_count != 1)
- return -EBUSY;
-
- sr_ioctl (inode, NULL, SCSI_IOCTL_DOORUNLOCK, 0);
- sr_cmd[0] = START_STOP;
- sr_cmd[1] = ((scsi_CDs[target].device -> lun) << 5) | 1;
- sr_cmd[2] = sr_cmd[3] = sr_cmd[5] = 0;
- sr_cmd[4] = 0x02;
-
- if (!(result = do_ioctl(target, sr_cmd, NULL, 255)))
- scsi_CDs[target].device -> changed = 1;
-
- return result;
-
- case CDROMVOLCTRL:
- {
- char * buffer, * mask;
- struct cdrom_volctrl volctrl;
-
- verify_area (VERIFY_READ, (void *) arg, sizeof (struct cdrom_volctrl));
- memcpy_fromfs (&volctrl, (void *) arg, sizeof (struct cdrom_volctrl));
-
- /* First we get the current params so we can just twiddle the volume */
-
- sr_cmd[0] = MODE_SENSE;
- sr_cmd[1] = (scsi_CDs[target].device -> lun) << 5;
- sr_cmd[2] = 0xe; /* Want mode page 0xe, CDROM audio params */
- sr_cmd[3] = 0;
- sr_cmd[4] = 28;
- sr_cmd[5] = 0;
-
- buffer = (unsigned char *) scsi_malloc(512);
- if(!buffer) return -ENOMEM;
-
- if ((result = do_ioctl (target, sr_cmd, buffer, 28))) {
- printk ("Hosed while obtaining audio mode page\n");
- scsi_free(buffer, 512);
- return result;
- }
-
- sr_cmd[0] = MODE_SENSE;
- sr_cmd[1] = (scsi_CDs[target].device -> lun) << 5;
- sr_cmd[2] = 0x4e; /* Want the mask for mode page 0xe */
- sr_cmd[3] = 0;
- sr_cmd[4] = 28;
- sr_cmd[5] = 0;
-
- mask = (unsigned char *) scsi_malloc(512);
- if(!mask) {
- scsi_free(buffer, 512);
- return -ENOMEM;
- };
-
- if ((result = do_ioctl (target, sr_cmd, mask, 28))) {
- printk ("Hosed while obtaining mask for audio mode page\n");
- scsi_free(buffer, 512);
- scsi_free(mask, 512);
- return result;
- }
-
- /* Now mask and substitute our own volume and reuse the rest */
- buffer[0] = 0; /* Clear reserved field */
-
- buffer[21] = volctrl.channel0 & mask[21];
- buffer[23] = volctrl.channel1 & mask[23];
- buffer[25] = volctrl.channel2 & mask[25];
- buffer[27] = volctrl.channel3 & mask[27];
-
- sr_cmd[0] = MODE_SELECT;
- sr_cmd[1] = ((scsi_CDs[target].device -> lun) << 5) | 0x10; /* Params are SCSI-2 */
- sr_cmd[2] = sr_cmd[3] = 0;
- sr_cmd[4] = 28;
- sr_cmd[5] = 0;
-
- result = do_ioctl (target, sr_cmd, buffer, 28);
- scsi_free(buffer, 512);
- scsi_free(mask, 512);
- return result;
- }
-
- case CDROMSUBCHNL:
- {
- struct cdrom_subchnl subchnl;
- char * buffer;
-
- sr_cmd[0] = SCMD_READ_SUBCHANNEL;
- sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 0x02; /* MSF format */
- sr_cmd[2] = 0x40; /* I do want the subchannel info */
- sr_cmd[3] = 0x01; /* Give me current position info */
- sr_cmd[4] = sr_cmd[5] = 0;
- sr_cmd[6] = 0;
- sr_cmd[7] = 0;
- sr_cmd[8] = 16;
- sr_cmd[9] = 0;
-
- buffer = (unsigned char*) scsi_malloc(512);
- if(!buffer) return -ENOMEM;
-
- result = do_ioctl(target, sr_cmd, buffer, 16);
-
- subchnl.cdsc_audiostatus = buffer[1];
- subchnl.cdsc_format = CDROM_MSF;
- subchnl.cdsc_ctrl = buffer[5] & 0xf;
- subchnl.cdsc_trk = buffer[6];
- subchnl.cdsc_ind = buffer[7];
-
- subchnl.cdsc_reladdr.msf.minute = buffer[13];
- subchnl.cdsc_reladdr.msf.second = buffer[14];
- subchnl.cdsc_reladdr.msf.frame = buffer[15];
- subchnl.cdsc_absaddr.msf.minute = buffer[9];
- subchnl.cdsc_absaddr.msf.second = buffer[10];
- subchnl.cdsc_absaddr.msf.frame = buffer[11];
-
- scsi_free(buffer, 512);
-
- err = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct cdrom_subchnl));
- if (err)
- return err;
- memcpy_tofs ((void *) arg, &subchnl, sizeof (struct cdrom_subchnl));
- return result;
- }
-
- case CDROMREADMODE2:
- return -EINVAL;
- case CDROMREADMODE1:
- return -EINVAL;
-
- /* block-copy from ../block/sbpcd.c with some adjustments... */
- case CDROMMULTISESSION: /* tell start-of-last-session to user */
- {
- struct cdrom_multisession ms_info;
- long lba;
-
- err = verify_area(VERIFY_READ, (void *) arg,
- sizeof(struct cdrom_multisession));
- if (err) return (err);
-
- memcpy_fromfs(&ms_info, (void *) arg, sizeof(struct cdrom_multisession));
-
- if (ms_info.addr_format==CDROM_MSF) { /* MSF-bin requested */
- lba = scsi_CDs[target].mpcd_sector+CD_BLOCK_OFFSET;
- ms_info.addr.msf.minute = lba / (CD_SECS*CD_FRAMES);
- lba %= CD_SECS*CD_FRAMES;
- ms_info.addr.msf.second = lba / CD_FRAMES;
- ms_info.addr.msf.frame = lba % CD_FRAMES;
- } else if (ms_info.addr_format==CDROM_LBA) /* lba requested */
- ms_info.addr.lba=scsi_CDs[target].mpcd_sector;
- else return (-EINVAL);
-
- ms_info.xa_flag=scsi_CDs[target].xa_flags & 0x01;
-
- err=verify_area(VERIFY_WRITE,(void *) arg,
- sizeof(struct cdrom_multisession));
- if (err) return (err);
-
- memcpy_tofs((void *) arg, &ms_info, sizeof(struct cdrom_multisession));
- return (0);
- }
+ u_char sr_cmd[10];
+
+ int dev = inode->i_rdev;
+ int result, target, err;
+
+ target = MINOR(dev);
+
+ if (target >= sr_template.nr_dev ||
+ !scsi_CDs[target].device) return -ENXIO;
+
+ switch (cmd)
+ {
+ /* Sun-compatible */
+ case CDROMPAUSE:
+
+ sr_cmd[0] = SCMD_PAUSE_RESUME;
+ sr_cmd[1] = scsi_CDs[target].device->lun << 5;
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = 0;
+ sr_cmd[5] = sr_cmd[6] = sr_cmd[7] = 0;
+ sr_cmd[8] = 0;
+ sr_cmd[9] = 0;
+
+ result = do_ioctl(target, sr_cmd, NULL, 255);
+ return result;
+
+ case CDROMRESUME:
+
+ sr_cmd[0] = SCMD_PAUSE_RESUME;
+ sr_cmd[1] = scsi_CDs[target].device->lun << 5;
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = 0;
+ sr_cmd[5] = sr_cmd[6] = sr_cmd[7] = 0;
+ sr_cmd[8] = 1;
+ sr_cmd[9] = 0;
+
+ result = do_ioctl(target, sr_cmd, NULL, 255);
+
+ return result;
+
+ case CDROMPLAYMSF:
+ {
+ struct cdrom_msf msf;
+ memcpy_fromfs(&msf, (void *) arg, sizeof(msf));
+
+ sr_cmd[0] = SCMD_PLAYAUDIO_MSF;
+ sr_cmd[1] = scsi_CDs[target].device->lun << 5;
+ sr_cmd[2] = 0;
+ sr_cmd[3] = msf.cdmsf_min0;
+ sr_cmd[4] = msf.cdmsf_sec0;
+ sr_cmd[5] = msf.cdmsf_frame0;
+ sr_cmd[6] = msf.cdmsf_min1;
+ sr_cmd[7] = msf.cdmsf_sec1;
+ sr_cmd[8] = msf.cdmsf_frame1;
+ sr_cmd[9] = 0;
+
+ result = do_ioctl(target, sr_cmd, NULL, 255);
+ return result;
+ }
+
+ case CDROMPLAYTRKIND:
+ {
+ struct cdrom_ti ti;
+ memcpy_fromfs(&ti, (void *) arg, sizeof(ti));
+
+ sr_cmd[0] = SCMD_PLAYAUDIO_TI;
+ sr_cmd[1] = scsi_CDs[target].device->lun << 5;
+ sr_cmd[2] = 0;
+ sr_cmd[3] = 0;
+ sr_cmd[4] = ti.cdti_trk0;
+ sr_cmd[5] = ti.cdti_ind0;
+ sr_cmd[6] = 0;
+ sr_cmd[7] = ti.cdti_trk1;
+ sr_cmd[8] = ti.cdti_ind1;
+ sr_cmd[9] = 0;
+
+ result = do_ioctl(target, sr_cmd, NULL, 255);
+
+ return result;
+ }
+
+ case CDROMREADTOCHDR:
+ {
+ struct cdrom_tochdr tochdr;
+ char * buffer;
+
+ sr_cmd[0] = SCMD_READ_TOC;
+ sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 0x02; /* MSF format */
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = sr_cmd[5] = 0;
+ sr_cmd[6] = 0;
+ sr_cmd[7] = 0; /* MSB of length (12) */
+ sr_cmd[8] = 12; /* LSB of length */
+ sr_cmd[9] = 0;
+
+ buffer = (unsigned char *) scsi_malloc(512);
+ if(!buffer) return -ENOMEM;
+
+ result = do_ioctl(target, sr_cmd, buffer, 12);
+
+ tochdr.cdth_trk0 = buffer[2];
+ tochdr.cdth_trk1 = buffer[3];
+
+ scsi_free(buffer, 512);
+
+ err = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct cdrom_tochdr));
+ if (err)
+ return err;
+ memcpy_tofs ((void *) arg, &tochdr, sizeof (struct cdrom_tochdr));
+
+ return result;
+ }
+
+ case CDROMREADTOCENTRY:
+ {
+ struct cdrom_tocentry tocentry;
+ char * buffer;
+
+ verify_area (VERIFY_READ, (void *) arg, sizeof (struct cdrom_tocentry));
+ memcpy_fromfs (&tocentry, (void *) arg, sizeof (struct cdrom_tocentry));
+
+ sr_cmd[0] = SCMD_READ_TOC;
+ sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 0x02; /* MSF format */
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[4] = sr_cmd[5] = 0;
+ sr_cmd[6] = tocentry.cdte_track;
+ sr_cmd[7] = 0; /* MSB of length (12) */
+ sr_cmd[8] = 12; /* LSB of length */
+ sr_cmd[9] = 0;
+
+ buffer = (unsigned char *) scsi_malloc(512);
+ if(!buffer) return -ENOMEM;
+
+ result = do_ioctl (target, sr_cmd, buffer, 12);
+
+ 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];
+ tocentry.cdte_ctrl = buffer[5] & 0xf;
+ }
+ else
+ tocentry.cdte_addr.lba = (int) buffer[0];
+
+ scsi_free(buffer, 512);
+
+ err = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct cdrom_tocentry));
+ if (err)
+ return err;
+ memcpy_tofs ((void *) arg, &tocentry, sizeof (struct cdrom_tocentry));
+
+ return result;
+ }
+
+ case CDROMSTOP:
+ sr_cmd[0] = START_STOP;
+ sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 1;
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[5] = 0;
+ sr_cmd[4] = 0;
+
+ result = do_ioctl(target, sr_cmd, NULL, 255);
+ return result;
+
+ case CDROMSTART:
+ sr_cmd[0] = START_STOP;
+ sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 1;
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[5] = 0;
+ sr_cmd[4] = 1;
+
+ result = do_ioctl(target, sr_cmd, NULL, 255);
+ return result;
+
+ case CDROMEJECT:
+ if (scsi_CDs[target].device -> access_count != 1)
+ return -EBUSY;
+
+ sr_ioctl (inode, NULL, SCSI_IOCTL_DOORUNLOCK, 0);
+ sr_cmd[0] = START_STOP;
+ sr_cmd[1] = ((scsi_CDs[target].device -> lun) << 5) | 1;
+ sr_cmd[2] = sr_cmd[3] = sr_cmd[5] = 0;
+ sr_cmd[4] = 0x02;
+
+ if (!(result = do_ioctl(target, sr_cmd, NULL, 255)))
+ scsi_CDs[target].device -> changed = 1;
+
+ return result;
+
+ case CDROMVOLCTRL:
+ {
+ char * buffer, * mask;
+ struct cdrom_volctrl volctrl;
+
+ verify_area (VERIFY_READ, (void *) arg, sizeof (struct cdrom_volctrl));
+ memcpy_fromfs (&volctrl, (void *) arg, sizeof (struct cdrom_volctrl));
+
+ /* First we get the current params so we can just twiddle the volume */
+
+ sr_cmd[0] = MODE_SENSE;
+ sr_cmd[1] = (scsi_CDs[target].device -> lun) << 5;
+ sr_cmd[2] = 0xe; /* Want mode page 0xe, CDROM audio params */
+ sr_cmd[3] = 0;
+ sr_cmd[4] = 28;
+ sr_cmd[5] = 0;
+
+ buffer = (unsigned char *) scsi_malloc(512);
+ if(!buffer) return -ENOMEM;
+
+ if ((result = do_ioctl (target, sr_cmd, buffer, 28))) {
+ printk ("Hosed while obtaining audio mode page\n");
+ scsi_free(buffer, 512);
+ return result;
+ }
+
+ sr_cmd[0] = MODE_SENSE;
+ sr_cmd[1] = (scsi_CDs[target].device -> lun) << 5;
+ sr_cmd[2] = 0x4e; /* Want the mask for mode page 0xe */
+ sr_cmd[3] = 0;
+ sr_cmd[4] = 28;
+ sr_cmd[5] = 0;
+
+ mask = (unsigned char *) scsi_malloc(512);
+ if(!mask) {
+ scsi_free(buffer, 512);
+ return -ENOMEM;
+ };
- case BLKRASET:
- if(!suser()) return -EACCES;
- if(!inode->i_rdev) return -EINVAL;
- if(arg > 0xff) return -EINVAL;
- read_ahead[MAJOR(inode->i_rdev)] = arg;
- return 0;
- RO_IOCTLS(dev,arg);
- default:
- return scsi_ioctl(scsi_CDs[target].device,cmd,(void *) arg);
- }
+ if ((result = do_ioctl (target, sr_cmd, mask, 28))) {
+ printk ("Hosed while obtaining mask for audio mode page\n");
+ scsi_free(buffer, 512);
+ scsi_free(mask, 512);
+ return result;
+ }
+
+ /* Now mask and substitute our own volume and reuse the rest */
+ buffer[0] = 0; /* Clear reserved field */
+
+ buffer[21] = volctrl.channel0 & mask[21];
+ buffer[23] = volctrl.channel1 & mask[23];
+ buffer[25] = volctrl.channel2 & mask[25];
+ buffer[27] = volctrl.channel3 & mask[27];
+
+ sr_cmd[0] = MODE_SELECT;
+ sr_cmd[1] = ((scsi_CDs[target].device -> lun) << 5) | 0x10; /* Params are SCSI-2 */
+ sr_cmd[2] = sr_cmd[3] = 0;
+ sr_cmd[4] = 28;
+ sr_cmd[5] = 0;
+
+ result = do_ioctl (target, sr_cmd, buffer, 28);
+ scsi_free(buffer, 512);
+ scsi_free(mask, 512);
+ return result;
+ }
+
+ case CDROMSUBCHNL:
+ {
+ struct cdrom_subchnl subchnl;
+ char * buffer;
+
+ sr_cmd[0] = SCMD_READ_SUBCHANNEL;
+ sr_cmd[1] = ((scsi_CDs[target].device->lun) << 5) | 0x02; /* MSF format */
+ sr_cmd[2] = 0x40; /* I do want the subchannel info */
+ sr_cmd[3] = 0x01; /* Give me current position info */
+ sr_cmd[4] = sr_cmd[5] = 0;
+ sr_cmd[6] = 0;
+ sr_cmd[7] = 0;
+ sr_cmd[8] = 16;
+ sr_cmd[9] = 0;
+
+ buffer = (unsigned char*) scsi_malloc(512);
+ if(!buffer) return -ENOMEM;
+
+ result = do_ioctl(target, sr_cmd, buffer, 16);
+
+ subchnl.cdsc_audiostatus = buffer[1];
+ subchnl.cdsc_format = CDROM_MSF;
+ subchnl.cdsc_ctrl = buffer[5] & 0xf;
+ subchnl.cdsc_trk = buffer[6];
+ subchnl.cdsc_ind = buffer[7];
+
+ subchnl.cdsc_reladdr.msf.minute = buffer[13];
+ subchnl.cdsc_reladdr.msf.second = buffer[14];
+ subchnl.cdsc_reladdr.msf.frame = buffer[15];
+ subchnl.cdsc_absaddr.msf.minute = buffer[9];
+ subchnl.cdsc_absaddr.msf.second = buffer[10];
+ subchnl.cdsc_absaddr.msf.frame = buffer[11];
+
+ scsi_free(buffer, 512);
+
+ err = verify_area (VERIFY_WRITE, (void *) arg, sizeof (struct cdrom_subchnl));
+ if (err)
+ return err;
+ memcpy_tofs ((void *) arg, &subchnl, sizeof (struct cdrom_subchnl));
+ return result;
+ }
+
+ case CDROMREADMODE2:
+ return -EINVAL;
+ case CDROMREADMODE1:
+ return -EINVAL;
+
+ /* block-copy from ../block/sbpcd.c with some adjustments... */
+ case CDROMMULTISESSION: /* tell start-of-last-session to user */
+ {
+ struct cdrom_multisession ms_info;
+ long lba;
+
+ err = verify_area(VERIFY_READ, (void *) arg,
+ sizeof(struct cdrom_multisession));
+ if (err) return (err);
+
+ memcpy_fromfs(&ms_info, (void *) arg, sizeof(struct cdrom_multisession));
+
+ if (ms_info.addr_format==CDROM_MSF) { /* MSF-bin requested */
+ lba = scsi_CDs[target].mpcd_sector+CD_BLOCK_OFFSET;
+ ms_info.addr.msf.minute = lba / (CD_SECS*CD_FRAMES);
+ lba %= CD_SECS*CD_FRAMES;
+ ms_info.addr.msf.second = lba / CD_FRAMES;
+ ms_info.addr.msf.frame = lba % CD_FRAMES;
+ } else if (ms_info.addr_format==CDROM_LBA) /* lba requested */
+ ms_info.addr.lba=scsi_CDs[target].mpcd_sector;
+ else return (-EINVAL);
+
+ ms_info.xa_flag=scsi_CDs[target].xa_flags & 0x01;
+
+ err=verify_area(VERIFY_WRITE,(void *) arg,
+ sizeof(struct cdrom_multisession));
+ if (err) return (err);
+
+ memcpy_tofs((void *) arg, &ms_info, sizeof(struct cdrom_multisession));
+ return (0);
+ }
+
+ case BLKRASET:
+ if(!suser()) return -EACCES;
+ if(!inode->i_rdev) return -EINVAL;
+ if(arg > 0xff) return -EINVAL;
+ read_ahead[MAJOR(inode->i_rdev)] = arg;
+ return 0;
+ RO_IOCTLS(dev,arg);
+ default:
+ return scsi_ioctl(scsi_CDs[target].device,cmd,(void *) arg);
+ }
}
/*
@@ -439,12 +439,14 @@
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
- * c-indent-level: 8
+ * c-indent-level: 4
* c-brace-imaginary-offset: 0
- * c-brace-offset: -8
- * c-argdecl-indent: 8
- * c-label-offset: -8
- * c-continued-statement-offset: 8
+ * c-brace-offset: -4
+ * c-argdecl-indent: 4
+ * c-label-offset: -4
+ * c-continued-statement-offset: 4
* c-continued-brace-offset: 0
+ * indent-tabs-mode: nil
+ * tab-width: 8
* End:
*/
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this