static int sr_read_tochdr(struct cdrom_device_info *cdi, struct cdrom_tochdr *tochdr) { struct scsi_cd *cd = cdi->handle; struct packet_command cgc; int result; unsigned char *buffer; buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); if (!buffer) return -ENOMEM; memset(&cgc, 0, sizeof(struct packet_command)); cgc.timeout = IOCTL_TIMEOUT; cgc.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; cgc.cmd[8] = 12; /* LSB of length */ cgc.buffer = buffer; cgc.buflen = 12; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; result = sr_do_ioctl(cd, &cgc); tochdr->cdth_trk0 = buffer[2]; tochdr->cdth_trk1 = buffer[3]; kfree(buffer); return result; }
int sr_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn) { Scsi_CD *cd = cdi->handle; struct packet_command cgc; char *buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); int result; if (!buffer) return -ENOMEM; memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_READ_SUBCHANNEL; cgc.cmd[2] = 0x40; /* I do want the subchannel info */ cgc.cmd[3] = 0x02; /* Give me medium catalog number info */ cgc.cmd[8] = 24; cgc.buffer = buffer; cgc.buflen = 24; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = IOCTL_TIMEOUT; result = sr_do_ioctl(cd, &cgc); memcpy(mcn->medium_catalog_number, buffer + 9, 13); mcn->medium_catalog_number[13] = 0; kfree(buffer); return result; }
static int test_unit_ready(Scsi_CD *cd) { struct packet_command cgc; memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_TEST_UNIT_READY; cgc.quiet = 1; cgc.data_direction = DMA_NONE; cgc.timeout = IOCTL_TIMEOUT; return sr_do_ioctl(cd, &cgc); }
int sr_tray_move(struct cdrom_device_info *cdi, int pos) { Scsi_CD *cd = cdi->handle; struct packet_command cgc; memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_START_STOP_UNIT; cgc.cmd[4] = (pos == 0) ? 0x03 /* close */ : 0x02 /* eject */ ; cgc.data_direction = DMA_NONE; cgc.timeout = IOCTL_TIMEOUT; return sr_do_ioctl(cd, &cgc); }
int sr_set_blocklength(Scsi_CD *cd, int blocklength) { unsigned char *buffer; /* the buffer for the ioctl */ struct packet_command cgc; struct ccs_modesel_head *modesel; int rc, density = 0; #ifdef CONFIG_BLK_DEV_SR_VENDOR if (cd->vendor == VENDOR_TOSHIBA) density = (blocklength > 2048) ? 0x81 : 0x83; #endif buffer = kmalloc(512, GFP_KERNEL | GFP_DMA); if (!buffer) return -ENOMEM; #ifdef DEBUG printk("%s: MODE SELECT 0x%x/%d\n", cd->cdi.name, density, blocklength); #endif memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = MODE_SELECT; cgc.cmd[1] = (1 << 4); cgc.cmd[4] = 12; modesel = (struct ccs_modesel_head *) buffer; memset(modesel, 0, sizeof(*modesel)); modesel->block_desc_length = 0x08; modesel->density = density; modesel->block_length_med = (blocklength >> 8) & 0xff; modesel->block_length_lo = blocklength & 0xff; cgc.buffer = buffer; cgc.buflen = sizeof(*modesel); cgc.data_direction = DMA_TO_DEVICE; cgc.timeout = VENDOR_TIMEOUT; if (0 == (rc = sr_do_ioctl(cd, &cgc))) { cd->device->sector_size = blocklength; } #ifdef DEBUG else printk("%s: switching blocklength to %d bytes failed\n", cd->cdi.name, blocklength); #endif kfree(buffer); return rc; }
static int sr_fake_playtrkind(struct cdrom_device_info *cdi, struct cdrom_ti *ti) { struct cdrom_tocentry trk0_te, trk1_te; struct cdrom_tochdr tochdr; struct packet_command cgc; int ntracks, ret; ret = sr_read_tochdr(cdi, &tochdr); if (ret) return ret; ntracks = tochdr.cdth_trk1 - tochdr.cdth_trk0 + 1; if (ti->cdti_trk1 == ntracks) ti->cdti_trk1 = CDROM_LEADOUT; else if (ti->cdti_trk1 != CDROM_LEADOUT) ti->cdti_trk1 ++; trk0_te.cdte_track = ti->cdti_trk0; trk0_te.cdte_format = CDROM_MSF; trk1_te.cdte_track = ti->cdti_trk1; trk1_te.cdte_format = CDROM_MSF; ret = sr_read_tocentry(cdi, &trk0_te); if (ret) return ret; ret = sr_read_tocentry(cdi, &trk1_te); if (ret) return ret; memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_PLAY_AUDIO_MSF; cgc.cmd[3] = trk0_te.cdte_addr.msf.minute; cgc.cmd[4] = trk0_te.cdte_addr.msf.second; cgc.cmd[5] = trk0_te.cdte_addr.msf.frame; cgc.cmd[6] = trk1_te.cdte_addr.msf.minute; cgc.cmd[7] = trk1_te.cdte_addr.msf.second; cgc.cmd[8] = trk1_te.cdte_addr.msf.frame; cgc.data_direction = DMA_NONE; cgc.timeout = IOCTL_TIMEOUT; return sr_do_ioctl(cdi->handle, &cgc); }
int sr_select_speed(struct cdrom_device_info *cdi, int speed) { Scsi_CD *cd = cdi->handle; struct packet_command cgc; if (speed == 0) speed = 0xffff; /* set to max */ else speed *= 177; /* Nx to kbyte/s */ memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_SET_SPEED; /* SET CD SPEED */ cgc.cmd[2] = (speed >> 8) & 0xff; /* MSB for speed (in kbytes/sec) */ cgc.cmd[3] = speed & 0xff; /* LSB */ cgc.data_direction = DMA_NONE; cgc.timeout = IOCTL_TIMEOUT; if (sr_do_ioctl(cd, &cgc)) return -EIO; return 0; }
static int sr_read_sector(Scsi_CD *cd, int lba, int blksize, unsigned char *dest) { struct packet_command cgc; int rc; /* we try the READ CD command first... */ if (cd->readcd_known) { rc = sr_read_cd(cd, dest, lba, 0, blksize); if (-EDRIVE_CANT_DO_THIS != rc) return rc; cd->readcd_known = 0; sr_printk(KERN_INFO, cd, "CDROM does'nt support READ CD (0xbe) command\n"); /* fall & retry the other way */ } /* ... if this fails, we switch the blocksize using MODE SELECT */ if (blksize != cd->device->sector_size) { if (0 != (rc = sr_set_blocklength(cd, blksize))) return rc; } #ifdef DEBUG sr_printk(KERN_INFO, cd, "sr_read_sector lba=%d blksize=%d\n", lba, blksize); #endif memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_READ_10; cgc.cmd[2] = (unsigned char) (lba >> 24) & 0xff; cgc.cmd[3] = (unsigned char) (lba >> 16) & 0xff; cgc.cmd[4] = (unsigned char) (lba >> 8) & 0xff; cgc.cmd[5] = (unsigned char) lba & 0xff; cgc.cmd[8] = 1; cgc.buffer = dest; cgc.buflen = blksize; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = IOCTL_TIMEOUT; rc = sr_do_ioctl(cd, &cgc); return rc; }
static int sr_read_tocentry(struct cdrom_device_info *cdi, struct cdrom_tocentry *tocentry) { struct scsi_cd *cd = cdi->handle; struct packet_command cgc; int result; unsigned char *buffer; buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); if (!buffer) return -ENOMEM; memset(&cgc, 0, sizeof(struct packet_command)); cgc.timeout = IOCTL_TIMEOUT; cgc.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; cgc.cmd[1] |= (tocentry->cdte_format == CDROM_MSF) ? 0x02 : 0; cgc.cmd[6] = tocentry->cdte_track; cgc.cmd[8] = 12; /* LSB of length */ cgc.buffer = buffer; cgc.buflen = 12; cgc.data_direction = DMA_FROM_DEVICE; result = sr_do_ioctl(cd, &cgc); 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]; kfree(buffer); return result; }
static int sr_play_trkind(struct cdrom_device_info *cdi, struct cdrom_ti *ti) { struct scsi_cd *cd = cdi->handle; struct packet_command cgc; int result; memset(&cgc, 0, sizeof(struct packet_command)); cgc.timeout = IOCTL_TIMEOUT; cgc.cmd[0] = GPCMD_PLAYAUDIO_TI; cgc.cmd[4] = ti->cdti_trk0; cgc.cmd[5] = ti->cdti_ind0; cgc.cmd[7] = ti->cdti_trk1; cgc.cmd[8] = ti->cdti_ind1; cgc.data_direction = DMA_NONE; result = sr_do_ioctl(cd, &cgc); if (result == -EDRIVE_CANT_DO_THIS) result = sr_fake_playtrkind(cdi, ti); return result; }
static int sr_read_cd(Scsi_CD *cd, unsigned char *dest, int lba, int format, int blksize) { struct packet_command cgc; #ifdef DEBUG sr_printk(KERN_INFO, cd, "sr_read_cd lba=%d format=%d blksize=%d\n", lba, format, blksize); #endif memset(&cgc, 0, sizeof(struct packet_command)); cgc.cmd[0] = GPCMD_READ_CD; /* READ_CD */ cgc.cmd[1] = ((format & 7) << 2); cgc.cmd[2] = (unsigned char) (lba >> 24) & 0xff; cgc.cmd[3] = (unsigned char) (lba >> 16) & 0xff; cgc.cmd[4] = (unsigned char) (lba >> 8) & 0xff; cgc.cmd[5] = (unsigned char) lba & 0xff; cgc.cmd[8] = 1; switch (blksize) { case 2336: cgc.cmd[9] = 0x58; break; case 2340: cgc.cmd[9] = 0x78; break; case 2352: cgc.cmd[9] = 0xf8; break; default: cgc.cmd[9] = 0x10; break; } cgc.buffer = dest; cgc.buflen = blksize; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = IOCTL_TIMEOUT; return sr_do_ioctl(cd, &cgc); }
int sr_cd_check(struct cdrom_device_info *cdi) { Scsi_CD *cd = cdi->handle; unsigned long sector; unsigned char *buffer; /* the buffer for the ioctl */ struct packet_command cgc; int rc, no_multi; if (cd->cdi.mask & CDC_MULTI_SESSION) return 0; buffer = kmalloc(512, GFP_KERNEL | GFP_DMA); if (!buffer) return -ENOMEM; sector = 0; /* the multisession sector offset goes here */ no_multi = 0; /* flag: the drive can't handle multisession */ rc = 0; memset(&cgc, 0, sizeof(struct packet_command)); switch (cd->vendor) { case VENDOR_SCSI3: cgc.cmd[0] = READ_TOC; cgc.cmd[8] = 12; cgc.cmd[9] = 0x40; cgc.buffer = buffer; cgc.buflen = 12; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = VENDOR_TIMEOUT; rc = sr_do_ioctl(cd, &cgc); if (rc != 0) break; if ((buffer[0] << 8) + buffer[1] < 0x0a) { printk(KERN_INFO "%s: Hmm, seems the drive " "doesn't support multisession CD's\n", cd->cdi.name); no_multi = 1; break; } sector = buffer[11] + (buffer[10] << 8) + (buffer[9] << 16) + (buffer[8] << 24); if (buffer[6] <= 1) { /* ignore sector offsets from first track */ sector = 0; } break; #ifdef CONFIG_BLK_DEV_SR_VENDOR case VENDOR_NEC:{ unsigned long min, sec, frame; cgc.cmd[0] = 0xde; cgc.cmd[1] = 0x03; cgc.cmd[2] = 0xb0; cgc.buffer = buffer; cgc.buflen = 0x16; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = VENDOR_TIMEOUT; rc = sr_do_ioctl(cd, &cgc); if (rc != 0) break; if (buffer[14] != 0 && buffer[14] != 0xb0) { printk(KERN_INFO "%s: Hmm, seems the cdrom " "doesn't support multisession CD's\n", cd->cdi.name); no_multi = 1; break; } min = bcd2bin(buffer[15]); sec = bcd2bin(buffer[16]); frame = bcd2bin(buffer[17]); sector = min * CD_SECS * CD_FRAMES + sec * CD_FRAMES + frame; break; } case VENDOR_TOSHIBA:{ unsigned long min, sec, frame; /* we request some disc information (is it a XA-CD ?, * where starts the last session ?) */ cgc.cmd[0] = 0xc7; cgc.cmd[1] = 0x03; cgc.buffer = buffer; cgc.buflen = 4; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = VENDOR_TIMEOUT; rc = sr_do_ioctl(cd, &cgc); if (rc == -EINVAL) { printk(KERN_INFO "%s: Hmm, seems the drive " "doesn't support multisession CD's\n", cd->cdi.name); no_multi = 1; break; } if (rc != 0) break; min = bcd2bin(buffer[1]); sec = bcd2bin(buffer[2]); frame = bcd2bin(buffer[3]); sector = min * CD_SECS * CD_FRAMES + sec * CD_FRAMES + frame; if (sector) sector -= CD_MSF_OFFSET; sr_set_blocklength(cd, 2048); break; } case VENDOR_WRITER: cgc.cmd[0] = READ_TOC; cgc.cmd[8] = 0x04; cgc.cmd[9] = 0x40; cgc.buffer = buffer; cgc.buflen = 0x04; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = VENDOR_TIMEOUT; rc = sr_do_ioctl(cd, &cgc); if (rc != 0) { break; } if ((rc = buffer[2]) == 0) { printk(KERN_WARNING "%s: No finished session\n", cd->cdi.name); break; } cgc.cmd[0] = READ_TOC; /* Read TOC */ cgc.cmd[6] = rc & 0x7f; /* number of last session */ cgc.cmd[8] = 0x0c; cgc.cmd[9] = 0x40; cgc.buffer = buffer; cgc.buflen = 12; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; cgc.timeout = VENDOR_TIMEOUT; rc = sr_do_ioctl(cd, &cgc); if (rc != 0) { break; } sector = buffer[11] + (buffer[10] << 8) + (buffer[9] << 16) + (buffer[8] << 24); break; #endif /* CONFIG_BLK_DEV_SR_VENDOR */ default: /* should not happen */ printk(KERN_WARNING "%s: unknown vendor code (%i), not initialized ?\n", cd->cdi.name, cd->vendor); sector = 0; no_multi = 1; break; } cd->ms_offset = sector; cd->xa_flag = 0; if (CDS_AUDIO != sr_disk_status(cdi) && 1 == sr_is_xa(cd)) cd->xa_flag = 1; if (2048 != cd->device->sector_size) { sr_set_blocklength(cd, 2048); } if (no_multi) cdi->mask |= CDC_MULTI_SESSION; #ifdef DEBUG if (sector) printk(KERN_DEBUG "%s: multisession offset=%lu\n", cd->cdi.name, sector); #endif kfree(buffer); return rc; }
int sr_audio_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, void *arg) { Scsi_CD *cd = cdi->handle; struct packet_command cgc; int result; unsigned char *buffer = kmalloc(32, GFP_KERNEL | SR_GFP_DMA(cd)); if (!buffer) return -ENOMEM; memset(&cgc, 0, sizeof(struct packet_command)); cgc.timeout = IOCTL_TIMEOUT; switch (cmd) { case CDROMREADTOCHDR: { struct cdrom_tochdr *tochdr = (struct cdrom_tochdr *) arg; cgc.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; cgc.cmd[8] = 12; /* LSB of length */ cgc.buffer = buffer; cgc.buflen = 12; cgc.quiet = 1; cgc.data_direction = DMA_FROM_DEVICE; result = sr_do_ioctl(cd, &cgc); tochdr->cdth_trk0 = buffer[2]; tochdr->cdth_trk1 = buffer[3]; break; } case CDROMREADTOCENTRY: { struct cdrom_tocentry *tocentry = (struct cdrom_tocentry *) arg; cgc.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; cgc.cmd[1] |= (tocentry->cdte_format == CDROM_MSF) ? 0x02 : 0; cgc.cmd[6] = tocentry->cdte_track; cgc.cmd[8] = 12; /* LSB of length */ cgc.buffer = buffer; cgc.buflen = 12; cgc.data_direction = DMA_FROM_DEVICE; result = sr_do_ioctl(cd, &cgc); 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 CDROMPLAYTRKIND: { struct cdrom_ti* ti = (struct cdrom_ti*)arg; cgc.cmd[0] = GPCMD_PLAYAUDIO_TI; cgc.cmd[4] = ti->cdti_trk0; cgc.cmd[5] = ti->cdti_ind0; cgc.cmd[7] = ti->cdti_trk1; cgc.cmd[8] = ti->cdti_ind1; cgc.data_direction = DMA_NONE; result = sr_do_ioctl(cd, &cgc); if (result == -EDRIVE_CANT_DO_THIS) result = sr_fake_playtrkind(cdi, ti); break; } default: result = -EINVAL; } #if 0 if (result) printk("DEBUG: sr_audio: result for ioctl %x: %x\n", cmd, result); #endif kfree(buffer); return result; }