diff options
Diffstat (limited to 'drivers/cdrom/cdrom.c')
| -rw-r--r-- | drivers/cdrom/cdrom.c | 1271 |
1 files changed, 638 insertions, 633 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 8a3aff724d98..49ac5662585b 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -312,36 +312,24 @@ static const char *mrw_format_status[] = { static const char *mrw_address_space[] = { "DMA", "GAA" }; -#if (ERRLOGMASK!=CD_NOTHING) -#define cdinfo(type, fmt, args...) \ +#if (ERRLOGMASK != CD_NOTHING) +#define cd_dbg(type, fmt, ...) \ do { \ if ((ERRLOGMASK & type) || debug == 1) \ - pr_info(fmt, ##args); \ + pr_debug(fmt, ##__VA_ARGS__); \ } while (0) #else -#define cdinfo(type, fmt, args...) \ +#define cd_dbg(type, fmt, ...) \ do { \ if (0 && (ERRLOGMASK & type) || debug == 1) \ - pr_info(fmt, ##args); \ + pr_debug(fmt, ##__VA_ARGS__); \ } while (0) #endif -/* These are used to simplify getting data in from and back to user land */ -#define IOCTL_IN(arg, type, in) \ - if (copy_from_user(&(in), (type __user *) (arg), sizeof (in))) \ - return -EFAULT; - -#define IOCTL_OUT(arg, type, out) \ - if (copy_to_user((type __user *) (arg), &(out), sizeof (out))) \ - return -EFAULT; - /* The (cdo->capability & ~cdi->mask & CDC_XXX) construct was used in a lot of places. This macro makes the code more clear. */ #define CDROM_CAN(type) (cdi->ops->capability & ~cdi->mask & (type)) -/* used in the audio ioctls */ -#define CHECKAUDIO if ((ret=check_for_audio_disc(cdi, cdo))) return ret - /* * Another popular OS uses 7 seconds as the hard timeout for default * commands, so it is a good choice for us as well. @@ -349,21 +337,6 @@ do { \ #define CDROM_DEF_TIMEOUT (7 * HZ) /* Not-exported routines. */ -static int open_for_data(struct cdrom_device_info * cdi); -static int check_for_audio_disc(struct cdrom_device_info * cdi, - struct cdrom_device_ops * cdo); -static void sanitize_format(union cdrom_addr *addr, - u_char * curr, u_char requested); -static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, - unsigned long arg); - -int cdrom_get_last_written(struct cdrom_device_info *, long *); -static int cdrom_get_next_writable(struct cdrom_device_info *, long *); -static void cdrom_count_tracks(struct cdrom_device_info *, tracktype*); - -static int cdrom_mrw_exit(struct cdrom_device_info *cdi); - -static int cdrom_get_disc_info(struct cdrom_device_info *cdi, disc_information *di); static void cdrom_sysctl_register(void); @@ -382,113 +355,65 @@ static int cdrom_dummy_generic_packet(struct cdrom_device_info *cdi, return -EIO; } -/* This macro makes sure we don't have to check on cdrom_device_ops - * existence in the run-time routines below. Change_capability is a - * hack to have the capability flags defined const, while we can still - * change it here without gcc complaining at every line. - */ -#define ENSURE(call, bits) if (cdo->call == NULL) *change_capability &= ~(bits) - -int register_cdrom(struct cdrom_device_info *cdi) -{ - static char banner_printed; - struct cdrom_device_ops *cdo = cdi->ops; - int *change_capability = (int *)&cdo->capability; /* hack */ - - cdinfo(CD_OPEN, "entering register_cdrom\n"); - - if (cdo->open == NULL || cdo->release == NULL) - return -EINVAL; - if (!banner_printed) { - pr_info("Uniform CD-ROM driver " REVISION "\n"); - banner_printed = 1; - cdrom_sysctl_register(); - } - - ENSURE(drive_status, CDC_DRIVE_STATUS ); - if (cdo->check_events == NULL && cdo->media_changed == NULL) - *change_capability = ~(CDC_MEDIA_CHANGED | CDC_SELECT_DISC); - ENSURE(tray_move, CDC_CLOSE_TRAY | CDC_OPEN_TRAY); - ENSURE(lock_door, CDC_LOCK); - ENSURE(select_speed, CDC_SELECT_SPEED); - ENSURE(get_last_session, CDC_MULTI_SESSION); - ENSURE(get_mcn, CDC_MCN); - ENSURE(reset, CDC_RESET); - ENSURE(generic_packet, CDC_GENERIC_PACKET); - cdi->mc_flags = 0; - cdo->n_minors = 0; - cdi->options = CDO_USE_FFLAGS; - - if (autoclose==1 && CDROM_CAN(CDC_CLOSE_TRAY)) - cdi->options |= (int) CDO_AUTO_CLOSE; - if (autoeject==1 && CDROM_CAN(CDC_OPEN_TRAY)) - cdi->options |= (int) CDO_AUTO_EJECT; - if (lockdoor==1) - cdi->options |= (int) CDO_LOCK; - if (check_media_type==1) - cdi->options |= (int) CDO_CHECK_TYPE; - - if (CDROM_CAN(CDC_MRW_W)) - cdi->exit = cdrom_mrw_exit; - - if (cdi->disk) - cdi->cdda_method = CDDA_BPC_FULL; - else - cdi->cdda_method = CDDA_OLD; - - if (!cdo->generic_packet) - cdo->generic_packet = cdrom_dummy_generic_packet; - - cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name); - mutex_lock(&cdrom_mutex); - list_add(&cdi->list, &cdrom_list); - mutex_unlock(&cdrom_mutex); - return 0; -} -#undef ENSURE - -void unregister_cdrom(struct cdrom_device_info *cdi) +static int cdrom_flush_cache(struct cdrom_device_info *cdi) { - cdinfo(CD_OPEN, "entering unregister_cdrom\n"); + struct packet_command cgc; - mutex_lock(&cdrom_mutex); - list_del(&cdi->list); - mutex_unlock(&cdrom_mutex); + init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); + cgc.cmd[0] = GPCMD_FLUSH_CACHE; - if (cdi->exit) - cdi->exit(cdi); + cgc.timeout = 5 * 60 * HZ; - cdi->ops->n_minors--; - cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name); + return cdi->ops->generic_packet(cdi, &cgc); } -int cdrom_get_media_event(struct cdrom_device_info *cdi, - struct media_event_desc *med) +/* requires CD R/RW */ +static int cdrom_get_disc_info(struct cdrom_device_info *cdi, + disc_information *di) { + struct cdrom_device_ops *cdo = cdi->ops; struct packet_command cgc; - unsigned char buffer[8]; - struct event_header *eh = (struct event_header *) buffer; + int ret, buflen; - init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); - cgc.cmd[0] = GPCMD_GET_EVENT_STATUS_NOTIFICATION; - cgc.cmd[1] = 1; /* IMMED */ - cgc.cmd[4] = 1 << 4; /* media event */ - cgc.cmd[8] = sizeof(buffer); + /* set up command and get the disc info */ + init_cdrom_command(&cgc, di, sizeof(*di), CGC_DATA_READ); + cgc.cmd[0] = GPCMD_READ_DISC_INFO; + cgc.cmd[8] = cgc.buflen = 2; cgc.quiet = 1; - if (cdi->ops->generic_packet(cdi, &cgc)) - return 1; + ret = cdo->generic_packet(cdi, &cgc); + if (ret) + return ret; - if (be16_to_cpu(eh->data_len) < sizeof(*med)) - return 1; + /* not all drives have the same disc_info length, so requeue + * packet with the length the drive tells us it can supply + */ + buflen = be16_to_cpu(di->disc_information_length) + + sizeof(di->disc_information_length); - if (eh->nea || eh->notification_class != 0x4) - return 1; + if (buflen > sizeof(disc_information)) + buflen = sizeof(disc_information); - memcpy(med, &buffer[sizeof(*eh)], sizeof(*med)); - return 0; + cgc.cmd[8] = cgc.buflen = buflen; + ret = cdo->generic_packet(cdi, &cgc); + if (ret) + return ret; + + /* return actual fill size */ + return buflen; } +/* This macro makes sure we don't have to check on cdrom_device_ops + * existence in the run-time routines below. Change_capability is a + * hack to have the capability flags defined const, while we can still + * change it here without gcc complaining at every line. + */ +#define ENSURE(call, bits) \ +do { \ + if (cdo->call == NULL) \ + *change_capability &= ~(bits); \ +} while (0) + /* * the first prototypes used 0x2c as the page code for the mrw mode page, * subsequently this was changed to 0x03. probe the one used by this drive @@ -605,18 +530,6 @@ static int cdrom_mrw_bgformat_susp(struct cdrom_device_info *cdi, int immed) return cdi->ops->generic_packet(cdi, &cgc); } -static int cdrom_flush_cache(struct cdrom_device_info *cdi) -{ - struct packet_command cgc; - - init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); - cgc.cmd[0] = GPCMD_FLUSH_CACHE; - - cgc.timeout = 5 * 60 * HZ; - - return cdi->ops->generic_packet(cdi, &cgc); -} - static int cdrom_mrw_exit(struct cdrom_device_info *cdi) { disc_information di; @@ -650,17 +563,19 @@ static int cdrom_mrw_set_lba_space(struct cdrom_device_info *cdi, int space) cgc.buffer = buffer; cgc.buflen = sizeof(buffer); - if ((ret = cdrom_mode_sense(cdi, &cgc, cdi->mrw_mode_page, 0))) + ret = cdrom_mode_sense(cdi, &cgc, cdi->mrw_mode_page, 0); + if (ret) return ret; - mph = (struct mode_page_header *) buffer; + mph = (struct mode_page_header *)buffer; offset = be16_to_cpu(mph->desc_length); size = be16_to_cpu(mph->mode_data_length) + 2; buffer[offset + 3] = space; cgc.buflen = size; - if ((ret = cdrom_mode_select(cdi, &cgc))) + ret = cdrom_mode_select(cdi, &cgc); + if (ret) return ret; pr_info("%s: mrw address space %s selected\n", @@ -668,6 +583,106 @@ static int cdrom_mrw_set_lba_space(struct cdrom_device_info *cdi, int space) return 0; } +int register_cdrom(struct cdrom_device_info *cdi) +{ + static char banner_printed; + struct cdrom_device_ops *cdo = cdi->ops; + int *change_capability = (int *)&cdo->capability; /* hack */ + + cd_dbg(CD_OPEN, "entering register_cdrom\n"); + + if (cdo->open == NULL || cdo->release == NULL) + return -EINVAL; + if (!banner_printed) { + pr_info("Uniform CD-ROM driver " REVISION "\n"); + banner_printed = 1; + cdrom_sysctl_register(); + } + + ENSURE(drive_status, CDC_DRIVE_STATUS); + if (cdo->check_events == NULL && cdo->media_changed == NULL) + *change_capability = ~(CDC_MEDIA_CHANGED | CDC_SELECT_DISC); + ENSURE(tray_move, CDC_CLOSE_TRAY | CDC_OPEN_TRAY); + ENSURE(lock_door, CDC_LOCK); + ENSURE(select_speed, CDC_SELECT_SPEED); + ENSURE(get_last_session, CDC_MULTI_SESSION); + ENSURE(get_mcn, CDC_MCN); + ENSURE(reset, CDC_RESET); + ENSURE(generic_packet, CDC_GENERIC_PACKET); + cdi->mc_flags = 0; + cdo->n_minors = 0; + cdi->options = CDO_USE_FFLAGS; + + if (autoclose == 1 && CDROM_CAN(CDC_CLOSE_TRAY)) + cdi->options |= (int) CDO_AUTO_CLOSE; + if (autoeject == 1 && CDROM_CAN(CDC_OPEN_TRAY)) + cdi->options |= (int) CDO_AUTO_EJECT; + if (lockdoor == 1) + cdi->options |= (int) CDO_LOCK; + if (check_media_type == 1) + cdi->options |= (int) CDO_CHECK_TYPE; + + if (CDROM_CAN(CDC_MRW_W)) + cdi->exit = cdrom_mrw_exit; + + if (cdi->disk) + cdi->cdda_method = CDDA_BPC_FULL; + else + cdi->cdda_method = CDDA_OLD; + + if (!cdo->generic_packet) + cdo->generic_packet = cdrom_dummy_generic_packet; + + cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name); + mutex_lock(&cdrom_mutex); + list_add(&cdi->list, &cdrom_list); + mutex_unlock(&cdrom_mutex); + return 0; +} +#undef ENSURE + +void unregister_cdrom(struct cdrom_device_info *cdi) +{ + cd_dbg(CD_OPEN, "entering unregister_cdrom\n"); + + mutex_lock(&cdrom_mutex); + list_del(&cdi->list); + mutex_unlock(&cdrom_mutex); + + if (cdi->exit) + cdi->exit(cdi); + + cdi->ops->n_minors--; + cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name); +} + +int cdrom_get_media_event(struct cdrom_device_info *cdi, + struct media_event_desc *med) +{ + struct packet_command cgc; + unsigned char buffer[8]; + struct event_header *eh = (struct event_header *)buffer; + + init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); + cgc.cmd[0] = GPCMD_GET_EVENT_STATUS_NOTIFICATION; + cgc.cmd[1] = 1; /* IMMED */ + cgc.cmd[4] = 1 << 4; /* media event */ + cgc.cmd[8] = sizeof(buffer); + cgc.quiet = 1; + + if (cdi->ops->generic_packet(cdi, &cgc)) + return 1; + + if (be16_to_cpu(eh->data_len) < sizeof(*med)) + return 1; + + if (eh->nea || eh->notification_class != 0x4) + return 1; + + memcpy(med, &buffer[sizeof(*eh)], sizeof(*med)); + return 0; +} + static int cdrom_get_random_writable(struct cdrom_device_info *cdi, struct rwrt_feature_desc *rfd) { @@ -839,7 +854,7 @@ static int cdrom_ram_open_write(struct cdrom_device_info *cdi) else if (CDF_RWRT == be16_to_cpu(rfd.feature_code)) ret = !rfd.curr; - cdinfo(CD_OPEN, "can open for random write\n"); + cd_dbg(CD_OPEN, "can open for random write\n"); return ret; } @@ -928,12 +943,12 @@ static void cdrom_dvd_rw_close_write(struct cdrom_device_info *cdi) struct packet_command cgc; if (cdi->mmc3_profile != 0x1a) { - cdinfo(CD_CLOSE, "%s: No DVD+RW\n", cdi->name); + cd_dbg(CD_CLOSE, "%s: No DVD+RW\n", cdi->name); return; } if (!cdi->media_written) { - cdinfo(CD_CLOSE, "%s: DVD+RW media clean\n", cdi->name); + cd_dbg(CD_CLOSE, "%s: DVD+RW media clean\n", cdi->name); return; } @@ -969,82 +984,74 @@ static int cdrom_close_write(struct cdrom_device_info *cdi) #endif } -/* We use the open-option O_NONBLOCK to indicate that the - * purpose of opening is only for subsequent ioctl() calls; no device - * integrity checks are performed. - * - * We hope that all cd-player programs will adopt this convention. It - * is in their own interest: device control becomes a lot easier - * this way. - */ -int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t mode) +/* badly broken, I know. Is due for a fixup anytime. */ +static void cdrom_count_tracks(struct cdrom_device_info *cdi, tracktype *tracks) { - int ret; - - cdinfo(CD_OPEN, "entering cdrom_open\n"); - - /* open is event synchronization point, check events first */ - check_disk_change(bdev); - - /* if this was a O_NONBLOCK open and we should honor the flags, - * do a quick open without drive/disc integrity checks. */ - cdi->use_count++; - if ((mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) { - ret = cdi->ops->open(cdi, 1); - } else { - ret = open_for_data(cdi); - if (ret) - goto err; - cdrom_mmc3_profile(cdi); - if (mode & FMODE_WRITE) { - ret = -EROFS; - if (cdrom_open_write(cdi)) - goto err_release; - if (!CDROM_CAN(CDC_RAM)) - goto err_release; - ret = 0; - cdi->media_written = 0; - } + struct cdrom_tochdr header; + struct cdrom_tocentry entry; + int ret, i; + tracks->data = 0; + tracks->audio = 0; + tracks->cdi = 0; + tracks->xa = 0; + tracks->error = 0; + cd_dbg(CD_COUNT_TRACKS, "entering cdrom_count_tracks\n"); + /* Grab the TOC header so we can see how many tracks there are */ + ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header); + if (ret) { + if (ret == -ENOMEDIUM) + tracks->error = CDS_NO_DISC; + else + tracks->error = CDS_NO_INFO; + return; } - - if (ret) - goto err; - - cdinfo(CD_OPEN, "Use count for \"/dev/%s\" now %d\n", - cdi->name, cdi->use_count); - return 0; -err_release: - if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { - cdi->ops->lock_door(cdi, 0); - cdinfo(CD_OPEN, "door unlocked.\n"); + /* check what type of tracks are on this disc */ + entry.cdte_format = CDROM_MSF; + for (i = header.cdth_trk0; i <= header.cdth_trk1; i++) { + entry.cdte_track = i; + if (cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &entry)) { + tracks->error = CDS_NO_INFO; + return; + } + if (entry.cdte_ctrl & CDROM_DATA_TRACK) { + if (entry.cdte_format == 0x10) + tracks->cdi++; + else if (entry.cdte_format == 0x20) + tracks->xa++; + else + tracks->data++; + } else { + tracks->audio++; + } + cd_dbg(CD_COUNT_TRACKS, "track %d: format=%d, ctrl=%d\n", + i, entry.cdte_format, entry.cdte_ctrl); } - cdi->ops->release(cdi); -err: - cdi->use_count--; - return ret; + cd_dbg(CD_COUNT_TRACKS, "disc has %d tracks: %d=audio %d=data %d=Cd-I %d=XA\n", + header.cdth_trk1, tracks->audio, tracks->data, + tracks->cdi, tracks->xa); } static -int open_for_data(struct cdrom_device_info * cdi) +int open_for_data(struct cdrom_device_info *cdi) { int ret; struct cdrom_device_ops *cdo = cdi->ops; tracktype tracks; - cdinfo(CD_OPEN, "entering open_for_data\n"); + cd_dbg(CD_OPEN, "entering open_for_data\n"); /* Check if the driver can report drive status. If it can, we can do clever things. If it can't, well, we at least tried! */ if (cdo->drive_status != NULL) { ret = cdo->drive_status(cdi, CDSL_CURRENT); - cdinfo(CD_OPEN, "drive_status=%d\n", ret); + cd_dbg(CD_OPEN, "drive_status=%d\n", ret); if (ret == CDS_TRAY_OPEN) { - cdinfo(CD_OPEN, "the tray is open...\n"); + cd_dbg(CD_OPEN, "the tray is open...\n"); /* can/may i close it? */ if (CDROM_CAN(CDC_CLOSE_TRAY) && cdi->options & CDO_AUTO_CLOSE) { - cdinfo(CD_OPEN, "trying to close the tray.\n"); + cd_dbg(CD_OPEN, "trying to close the tray\n"); ret=cdo->tray_move(cdi,0); if (ret) { - cdinfo(CD_OPEN, "bummer. tried to close the tray but failed.\n"); + cd_dbg(CD_OPEN, "bummer. tried to close the tray but failed.\n"); /* Ignore the error from the low level driver. We don't care why it couldn't close the tray. We only care @@ -1054,19 +1061,19 @@ int open_for_data(struct cdrom_device_info * cdi) goto clean_up_and_return; } } else { - cdinfo(CD_OPEN, "bummer. this drive can't close the tray.\n"); + cd_dbg(CD_OPEN, "bummer. this drive can't close the tray.\n"); ret=-ENOMEDIUM; goto clean_up_and_return; } /* Ok, the door should be closed now.. Check again */ ret = cdo->drive_status(cdi, CDSL_CURRENT); if ((ret == CDS_NO_DISC) || (ret==CDS_TRAY_OPEN)) { - cdinfo(CD_OPEN, "bummer. the tray is still not closed.\n"); - cdinfo(CD_OPEN, "tray might not contain a medium.\n"); + cd_dbg(CD_OPEN, "bummer. the tray is still not closed.\n"); + cd_dbg(CD_OPEN, "tray might not contain a medium\n"); ret=-ENOMEDIUM; goto clean_up_and_return; } - cdinfo(CD_OPEN, "the tray is now closed.\n"); + cd_dbg(CD_OPEN, "the tray is now closed\n"); } /* the door should be closed now, check for the disc */ ret = cdo->drive_status(cdi, CDSL_CURRENT); @@ -1077,7 +1084,7 @@ int open_for_data(struct cdrom_device_info * cdi) } cdrom_count_tracks(cdi, &tracks); if (tracks.error == CDS_NO_DISC) { - cdinfo(CD_OPEN, "bummer. no disc.\n"); + cd_dbg(CD_OPEN, "bummer. no disc.\n"); ret=-ENOMEDIUM; goto clean_up_and_return; } @@ -1087,34 +1094,34 @@ int open_for_data(struct cdrom_device_info * cdi) if (cdi->options & CDO_CHECK_TYPE) { /* give people a warning shot, now that CDO_CHECK_TYPE is the default case! */ - cdinfo(CD_OPEN, "bummer. wrong media type.\n"); - cdinfo(CD_WARNING, "pid %d must open device O_NONBLOCK!\n", - (unsigned int)task_pid_nr(current)); + cd_dbg(CD_OPEN, "bummer. wrong media type.\n"); + cd_dbg(CD_WARNING, "pid %d must open device O_NONBLOCK!\n", + (unsigned int)task_pid_nr(current)); ret=-EMEDIUMTYPE; goto clean_up_and_return; } else { - cdinfo(CD_OPEN, "wrong media type, but CDO_CHECK_TYPE not set.\n"); + cd_dbg(CD_OPEN, "wrong media type, but CDO_CHECK_TYPE not set\n"); } } - cdinfo(CD_OPEN, "all seems well, opening the device.\n"); + cd_dbg(CD_OPEN, "all seems well, opening the devicen"); /* all seems well, we can open the device */ ret = cdo->open(cdi, 0); /* open for data */ - cdinfo(CD_OPEN, "opening the device gave me %d.\n", ret); + cd_dbg(CD_OPEN, "opening the device gave me %d\n", ret); /* After all this careful checking, we shouldn't have problems opening the device, but we don't want the device locked if this somehow fails... */ if (ret) { - cdinfo(CD_OPEN, "open device failed.\n"); + cd_dbg(CD_OPEN, "open device failed\n"); goto clean_up_and_return; } if (CDROM_CAN(CDC_LOCK) && (cdi->options & CDO_LOCK)) { cdo->lock_door(cdi, 1); - cdinfo(CD_OPEN, "door locked.\n"); + cd_dbg(CD_OPEN, "door locked\n"); } - cdinfo(CD_OPEN, "device opened successfully.\n"); + cd_dbg(CD_OPEN, "device opened successfully\n"); return ret; /* Something failed. Try to unlock the drive, because some drivers @@ -1123,14 +1130,70 @@ int open_for_data(struct cdrom_device_info * cdi) This ensures that the drive gets unlocked after a mount fails. This is a goto to avoid bloating the driver with redundant code. */ clean_up_and_return: - cdinfo(CD_OPEN, "open failed.\n"); + cd_dbg(CD_OPEN, "open failed\n"); if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { cdo->lock_door(cdi, 0); - cdinfo(CD_OPEN, "door unlocked.\n"); + cd_dbg(CD_OPEN, "door unlocked\n"); } return ret; } +/* We use the open-option O_NONBLOCK to indicate that the + * purpose of opening is only for subsequent ioctl() calls; no device + * integrity checks are performed. + * + * We hope that all cd-player programs will adopt this convention. It + * is in their own interest: device control becomes a lot easier + * this way. + */ +int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, + fmode_t mode) +{ + int ret; + + cd_dbg(CD_OPEN, "entering cdrom_open\n"); + + /* open is event synchronization point, check events first */ + check_disk_change(bdev); + + /* if this was a O_NONBLOCK open and we should honor the flags, + * do a quick open without drive/disc integrity checks. */ + cdi->use_count++; + if ((mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) { + ret = cdi->ops->open(cdi, 1); + } else { + ret = open_for_data(cdi); + if (ret) + goto err; + cdrom_mmc3_profile(cdi); + if (mode & FMODE_WRITE) { + ret = -EROFS; + if (cdrom_open_write(cdi)) + goto err_release; + if (!CDROM_CAN(CDC_RAM)) + goto err_release; + ret = 0; + cdi->media_written = 0; + } + } + + if (ret) + goto err; + + cd_dbg(CD_OPEN, "Use count for \"/dev/%s\" now %d\n", + cdi->name, cdi->use_count); + return 0; +err_release: + if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { + cdi->ops->lock_door(cdi, 0); + cd_dbg(CD_OPEN, "door unlocked\n"); + } + cdi->ops->release(cdi); +err: + cdi->use_count--; + return ret; +} + /* This code is similar to that in open_for_data. The routine is called whenever an audio play operation is requested. */ @@ -1139,21 +1202,21 @@ static int check_for_audio_disc(struct cdrom_device_info * cdi, { int ret; tracktype tracks; - cdinfo(CD_OPEN, "entering check_for_audio_disc\n"); + cd_dbg(CD_OPEN, "entering check_for_audio_disc\n"); if (!(cdi->options & CDO_CHECK_TYPE)) return 0; if (cdo->drive_status != NULL) { ret = cdo->drive_status(cdi, CDSL_CURRENT); - cdinfo(CD_OPEN, "drive_status=%d\n", ret); + cd_dbg(CD_OPEN, "drive_status=%d\n", ret); if (ret == CDS_TRAY_OPEN) { - cdinfo(CD_OPEN, "the tray is open...\n"); + cd_dbg(CD_OPEN, "the tray is open...\n"); /* can/may i close it? */ if (CDROM_CAN(CDC_CLOSE_TRAY) && cdi->options & CDO_AUTO_CLOSE) { - cdinfo(CD_OPEN, "trying to close the tray.\n"); + cd_dbg(CD_OPEN, "trying to close the tray\n"); ret=cdo->tray_move(cdi,0); if (ret) { - cdinfo(CD_OPEN, "bummer. tried to close tray but failed.\n"); + cd_dbg(CD_OPEN, "bummer. tried to close tray but failed.\n"); /* Ignore the error from the low level driver. We don't care why it couldn't close the tray. We only care @@ -1162,20 +1225,20 @@ static int check_for_audio_disc(struct cdrom_device_info * cdi, return -ENOMEDIUM; } } else { - cdinfo(CD_OPEN, "bummer. this driver can't close the tray.\n"); + cd_dbg(CD_OPEN, "bummer. this driver can't close the tray.\n"); return -ENOMEDIUM; } /* Ok, the door should be closed now.. Check again */ ret = cdo->drive_status(cdi, CDSL_CURRENT); if ((ret == CDS_NO_DISC) || (ret==CDS_TRAY_OPEN)) { - cdinfo(CD_OPEN, "bummer. the tray is still not closed.\n"); + cd_dbg(CD_OPEN, "bummer. the tray is still not closed.\n"); return -ENOMEDIUM; } if (ret!=CDS_DISC_OK) { - cdinfo(CD_OPEN, "bummer. disc isn't ready.\n"); + cd_dbg(CD_OPEN, "bummer. disc isn't ready.\n"); return -EIO; } - cdinfo(CD_OPEN, "the tray is now closed.\n"); + cd_dbg(CD_OPEN, "the tray is now closed\n"); } } cdrom_count_tracks(cdi, &tracks); @@ -1193,17 +1256,18 @@ void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode) struct cdrom_device_ops *cdo = cdi->ops; int opened_for_data; - cdinfo(CD_CLOSE, "entering cdrom_release\n"); + cd_dbg(CD_CLOSE, "entering cdrom_release\n"); if (cdi->use_count > 0) cdi->use_count--; if (cdi->use_count == 0) { - cdinfo(CD_CLOSE, "Use count for \"/dev/%s\" now zero\n", cdi->name); + cd_dbg(CD_CLOSE, "Use count for \"/dev/%s\" now zero\n", + cdi->name); cdrom_dvd_rw_close_write(cdi); if ((cdo->capability & CDC_LOCK) && !cdi->keeplocked) { - cdinfo(CD_CLOSE, "Unlocking door!\n"); + cd_dbg(CD_CLOSE, "Unlocking door!\n"); cdo->lock_door(cdi, 0); } } @@ -1262,7 +1326,7 @@ static int cdrom_slot_status(struct cdrom_device_info *cdi, int slot) struct cdrom_changer_info *info; int ret; - cdinfo(CD_CHANGER, "entering cdrom_slot_status()\n"); + cd_dbg(CD_CHANGER, "entering cdrom_slot_status()\n"); if (cdi->sanyo_slot) return CDS_NO_INFO; @@ -1292,7 +1356,7 @@ int cdrom_number_of_slots(struct cdrom_device_info *cdi) int nslots = 1; struct cdrom_changer_info *info; - cdinfo(CD_CHANGER, "entering cdrom_number_of_slots()\n"); + cd_dbg(CD_CHANGER, "entering cdrom_number_of_slots()\n"); /* cdrom_read_mech_status requires a valid value for capacity: */ cdi->capacity = 0; @@ -1313,7 +1377,7 @@ static int cdrom_load_unload(struct cdrom_device_info *cdi, int slot) { struct packet_command cgc; - cdinfo(CD_CHANGER, "entering cdrom_load_unload()\n"); + cd_dbg(CD_CHANGER, "entering cdrom_load_unload()\n"); if (cdi->sanyo_slot && slot < 0) return 0; @@ -1342,7 +1406,7 @@ static int cdrom_select_disc(struct cdrom_device_info *cdi, int slot) int curslot; int ret; - cdinfo(CD_CHANGER, "entering cdrom_select_disc()\n"); + cd_dbg(CD_CHANGER, "entering cdrom_select_disc()\n"); if (!CDROM_CAN(CDC_SELECT_DISC)) return -EDRIVE_CANT_DO_THIS; @@ -1476,51 +1540,6 @@ int cdrom_media_changed(struct cdrom_device_info *cdi) return media_changed(cdi, 0); } -/* badly broken, I know. Is due for a fixup anytime. */ -static void cdrom_count_tracks(struct cdrom_device_info *cdi, tracktype* tracks) -{ - struct cdrom_tochdr header; - struct cdrom_tocentry entry; - int ret, i; - tracks->data=0; - tracks->audio=0; - tracks->cdi=0; - tracks->xa=0; - tracks->error=0; - cdinfo(CD_COUNT_TRACKS, "entering cdrom_count_tracks\n"); - /* Grab the TOC header so we can see how many tracks there are */ - if ((ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header))) { - if (ret == -ENOMEDIUM) - tracks->error = CDS_NO_DISC; - else - tracks->error = CDS_NO_INFO; - return; - } - /* check what type of tracks are on this disc */ - entry.cdte_format = CDROM_MSF; - for (i = header.cdth_trk0; i <= header.cdth_trk1; i++) { - entry.cdte_track = i; - if (cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &entry)) { - tracks->error=CDS_NO_INFO; - return; - } - if (entry.cdte_ctrl & CDROM_DATA_TRACK) { - if (entry.cdte_format == 0x10) - tracks->cdi++; - else if (entry.cdte_format == 0x20) - tracks->xa++; - else - tracks->data++; - } else - tracks->audio++; - cdinfo(CD_COUNT_TRACKS, "track %d: format=%d, ctrl=%d\n", - i, entry.cdte_format, entry.cdte_ctrl); - } - cdinfo(CD_COUNT_TRACKS, "disc has %d tracks: %d=audio %d=data %d=Cd-I %d=XA\n", - header.cdth_trk1, tracks->audio, tracks->data, - tracks->cdi, tracks->xa); -} - /* Requests to the low-level drivers will /always/ be done in the following format convention: @@ -1632,7 +1651,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) switch (ai->type) { /* LU data send */ case DVD_LU_SEND_AGID: - cdinfo(CD_DVD, "entering DVD_LU_SEND_AGID\n"); + cd_dbg(CD_DVD, "entering DVD_LU_SEND_AGID\n"); cgc.quiet = 1; setup_report_key(&cgc, ai->lsa.agid, 0); @@ -1644,7 +1663,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) break; case DVD_LU_SEND_KEY1: - cdinfo(CD_DVD, "entering DVD_LU_SEND_KEY1\n"); + cd_dbg(CD_DVD, "entering DVD_LU_SEND_KEY1\n"); setup_report_key(&cgc, ai->lsk.agid, 2); if ((ret = cdo->generic_packet(cdi, &cgc))) @@ -1655,7 +1674,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) break; case DVD_LU_SEND_CHALLENGE: - cdinfo(CD_DVD, "entering DVD_LU_SEND_CHALLENGE\n"); + cd_dbg(CD_DVD, "entering DVD_LU_SEND_CHALLENGE\n"); setup_report_key(&cgc, ai->lsc.agid, 1); if ((ret = cdo->generic_packet(cdi, &cgc))) @@ -1667,7 +1686,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) /* Post-auth key */ case DVD_LU_SEND_TITLE_KEY: - cdinfo(CD_DVD, "entering DVD_LU_SEND_TITLE_KEY\n"); + cd_dbg(CD_DVD, "entering DVD_LU_SEND_TITLE_KEY\n"); cgc.quiet = 1; setup_report_key(&cgc, ai->lstk.agid, 4); cgc.cmd[5] = ai->lstk.lba; @@ -1686,7 +1705,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) break; case DVD_LU_SEND_ASF: - cdinfo(CD_DVD, "entering DVD_LU_SEND_ASF\n"); + cd_dbg(CD_DVD, "entering DVD_LU_SEND_ASF\n"); setup_report_key(&cgc, ai->lsasf.agid, 5); if ((ret = cdo->generic_packet(cdi, &cgc))) @@ -1697,7 +1716,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) /* LU data receive (LU changes state) */ case DVD_HOST_SEND_CHALLENGE: - cdinfo(CD_DVD, "entering DVD_HOST_SEND_CHALLENGE\n"); + cd_dbg(CD_DVD, "entering DVD_HOST_SEND_CHALLENGE\n"); setup_send_key(&cgc, ai->hsc.agid, 1); buf[1] = 0xe; copy_chal(&buf[4], ai->hsc.chal); @@ -1709,7 +1728,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) break; case DVD_HOST_SEND_KEY2: - cdinfo(CD_DVD, "entering DVD_HOST_SEND_KEY2\n"); + cd_dbg(CD_DVD, "entering DVD_HOST_SEND_KEY2\n"); setup_send_key(&cgc, ai->hsk.agid, 3); buf[1] = 0xa; copy_key(&buf[4], ai->hsk.key); @@ -1724,7 +1743,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) /* Misc */ case DVD_INVALIDATE_AGID: cgc.quiet = 1; - cdinfo(CD_DVD, "entering DVD_INVALIDATE_AGID\n"); + cd_dbg(CD_DVD, "entering DVD_INVALIDATE_AGID\n"); setup_report_key(&cgc, ai->lsa.agid, 0x3f); if ((ret = cdo->generic_packet(cdi, &cgc))) return ret; @@ -1732,7 +1751,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) /* Get region settings */ case DVD_LU_SEND_RPC_STATE: - cdinfo(CD_DVD, "entering DVD_LU_SEND_RPC_STATE\n"); + cd_dbg(CD_DVD, "entering DVD_LU_SEND_RPC_STATE\n"); setup_report_key(&cgc, 0, 8); memset(&rpc_state, 0, sizeof(rpc_state_t)); cgc.buffer = (char *) &rpc_state; @@ -1749,7 +1768,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) /* Set region settings */ case DVD_HOST_SEND_RPC_STATE: - cdinfo(CD_DVD, "entering DVD_HOST_SEND_RPC_STATE\n"); + cd_dbg(CD_DVD, "entering DVD_HOST_SEND_RPC_STATE\n"); setup_send_key(&cgc, 0, 6); buf[1] = 6; buf[4] = ai->hrpcs.pdrc; @@ -1759,7 +1778,7 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) break; default: - cdinfo(CD_WARNING, "Invalid DVD key ioctl (%d)\n", ai->type); + cd_dbg(CD_WARNING, "Invalid DVD key ioctl (%d)\n", ai->type); return -ENOTTY; } @@ -1891,7 +1910,8 @@ static int dvd_read_bca(struct cdrom_device_info *cdi, dvd_struct *s, s->bca.len = buf[0] << 8 | buf[1]; if (s->bca.len < 12 || s->bca.len > 188) { - cdinfo(CD_WARNING, "Received invalid BCA length (%d)\n", s->bca.len); + cd_dbg(CD_WARNING, "Received invalid BCA length (%d)\n", + s->bca.len); ret = -EIO; goto out; } @@ -1927,14 +1947,13 @@ static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s, s->manufact.len = buf[0] << 8 | buf[1]; if (s->manufact.len < 0) { - cdinfo(CD_WARNING, "Received invalid manufacture info length" - " (%d)\n", s->manufact.len); + cd_dbg(CD_WARNING, "Received invalid manufacture info length (%d)\n", + s->manufact.len); ret = -EIO; } else { if (s->manufact.len > 2048) { - cdinfo(CD_WARNING, "Received invalid manufacture info " - "length (%d): truncating to 2048\n", - s->manufact.len); + cd_dbg(CD_WARNING, "Received invalid manufacture info length (%d): truncating to 2048\n", + s->manufact.len); s->manufact.len = 2048; } memcpy(s->manufact.value, &buf[4], s->manufact.len); @@ -1965,8 +1984,8 @@ static int dvd_read_struct(struct cdrom_device_info *cdi, dvd_struct *s, return dvd_read_manufact(cdi, s, cgc); default: - cdinfo(CD_WARNING, ": Invalid DVD structure read requested (%d)\n", - s->type); + cd_dbg(CD_WARNING, ": Invalid DVD structure read requested (%d)\n", + s->type); return -EINVAL; } } @@ -2255,7 +2274,7 @@ static int cdrom_ioctl_multisession(struct cdrom_device_info *cdi, u8 requested_format; int ret; - cdinfo(CD_DO_IOCTL, "entering CDROMMULTISESSION\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMMULTISESSION\n"); if (!(cdi->ops->capability & CDC_MULTI_SESSION)) return -ENOSYS; @@ -2277,13 +2296,13 @@ static int cdrom_ioctl_multisession(struct cdrom_device_info *cdi, if (copy_to_user(argp, &ms_info, sizeof(ms_info))) return -EFAULT; - cdinfo(CD_DO_IOCTL, "CDROMMULTISESSION successful\n"); + cd_dbg(CD_DO_IOCTL, "CDROMMULTISESSION successful\n"); return 0; } static int cdrom_ioctl_eject(struct cdrom_device_info *cdi) { - cdinfo(CD_DO_IOCTL, "entering CDROMEJECT\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMEJECT\n"); if (!CDROM_CAN(CDC_OPEN_TRAY)) return -ENOSYS; @@ -2300,7 +2319,7 @@ static int cdrom_ioctl_eject(struct cdrom_device_info *cdi) static int cdrom_ioctl_closetray(struct cdrom_device_info *cdi) { - cdinfo(CD_DO_IOCTL, "entering CDROMCLOSETRAY\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMCLOSETRAY\n"); if (!CDROM_CAN(CDC_CLOSE_TRAY)) return -ENOSYS; @@ -2310,7 +2329,7 @@ static int cdrom_ioctl_closetray(struct cdrom_device_info *cdi) static int cdrom_ioctl_eject_sw(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "entering CDROMEJECT_SW\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMEJECT_SW\n"); if (!CDROM_CAN(CDC_OPEN_TRAY)) return -ENOSYS; @@ -2329,7 +2348,7 @@ static int cdrom_ioctl_media_changed(struct cdrom_device_info *cdi, struct cdrom_changer_info *info; int ret; - cdinfo(CD_DO_IOCTL, "entering CDROM_MEDIA_CHANGED\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_MEDIA_CHANGED\n"); if (!CDROM_CAN(CDC_MEDIA_CHANGED)) return -ENOSYS; @@ -2355,7 +2374,7 @@ static int cdrom_ioctl_media_changed(struct cdrom_device_info *cdi, static int cdrom_ioctl_set_options(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "entering CDROM_SET_OPTIONS\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_SET_OPTIONS\n"); /* * Options need to be in sync with capability. @@ -2383,7 +2402,7 @@ static int cdrom_ioctl_set_options(struct cdrom_device_info *cdi, static int cdrom_ioctl_clear_options(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "entering CDROM_CLEAR_OPTIONS\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_CLEAR_OPTIONS\n"); cdi->options &= ~(int) arg; return cdi->options; @@ -2392,7 +2411,7 @@ static int cdrom_ioctl_clear_options(struct cdrom_device_info *cdi, static int cdrom_ioctl_select_speed(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_SPEED\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_SELECT_SPEED\n"); if (!CDROM_CAN(CDC_SELECT_SPEED)) return -ENOSYS; @@ -2402,7 +2421,7 @@ static int cdrom_ioctl_select_speed(struct cdrom_device_info *cdi, static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_DISC\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_SELECT_DISC\n"); if (!CDROM_CAN(CDC_SELECT_DISC)) return -ENOSYS; @@ -2420,14 +2439,14 @@ static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi, if (cdi->ops->select_disc) return cdi->ops->select_disc(cdi, arg); - cdinfo(CD_CHANGER, "Using generic cdrom_select_disc()\n"); + cd_dbg(CD_CHANGER, "Using generic cdrom_select_disc()\n"); return cdrom_select_disc(cdi, arg); } static int cdrom_ioctl_reset(struct cdrom_device_info *cdi, struct block_device *bdev) { - cdinfo(CD_DO_IOCTL, "entering CDROM_RESET\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_RESET\n"); if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -2440,7 +2459,7 @@ static int cdrom_ioctl_reset(struct cdrom_device_info *cdi, static int cdrom_ioctl_lock_door(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "%socking door.\n", arg ? "L" : "Unl"); + cd_dbg(CD_DO_IOCTL, "%socking door\n", arg ? "L" : "Unl"); if (!CDROM_CAN(CDC_LOCK)) return -EDRIVE_CANT_DO_THIS; @@ -2459,7 +2478,7 @@ static int cdrom_ioctl_lock_door(struct cdrom_device_info *cdi, static int cdrom_ioctl_debug(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "%sabling debug.\n", arg ? "En" : "Dis"); + cd_dbg(CD_DO_IOCTL, "%sabling debug\n", arg ? "En" : "Dis"); if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -2469,7 +2488,7 @@ static int cdrom_ioctl_debug(struct cdrom_device_info *cdi, static int cdrom_ioctl_get_capability(struct cdrom_device_info *cdi) { - cdinfo(CD_DO_IOCTL, "entering CDROM_GET_CAPABILITY\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_GET_CAPABILITY\n"); return (cdi->ops->capability & ~cdi->mask); } @@ -2485,7 +2504,7 @@ static int cdrom_ioctl_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn mcn; int ret; - cdinfo(CD_DO_IOCTL, "entering CDROM_GET_MCN\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_GET_MCN\n"); if (!(cdi->ops->capability & CDC_MCN)) return -ENOSYS; @@ -2495,14 +2514,14 @@ static int cdrom_ioctl_get_mcn(struct cdrom_device_info *cdi, if (copy_to_user(argp, &mcn, sizeof(mcn))) return -EFAULT; - cdinfo(CD_DO_IOCTL, "CDROM_GET_MCN successful\n"); + cd_dbg(CD_DO_IOCTL, "CDROM_GET_MCN successful\n"); return 0; } static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi, unsigned long arg) { - cdinfo(CD_DO_IOCTL, "entering CDROM_DRIVE_STATUS\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_DRIVE_STATUS\n"); if (!(cdi->ops->capability & CDC_DRIVE_STATUS)) return -ENOSYS; @@ -2535,7 +2554,7 @@ static int cdrom_ioctl_disc_status(struct cdrom_device_info *cdi) { tracktype tracks; - cdinfo(CD_DO_IOCTL, "entering CDROM_DISC_STATUS\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_DISC_STATUS\n"); cdrom_count_tracks(cdi, &tracks); if (tracks.error) @@ -2557,13 +2576,13 @@ static int cdrom_ioctl_disc_status(struct cdrom_device_info *cdi) return CDS_DATA_1; /* Policy mode off */ - cdinfo(CD_WARNING,"This disc doesn't have any tracks I recognize!\n"); + cd_dbg(CD_WARNING, "This disc doesn't have any tracks I recognize!\n"); return CDS_NO_INFO; } static int cdrom_ioctl_changer_nslots(struct cdrom_device_info *cdi) { - cdinfo(CD_DO_IOCTL, "entering CDROM_CHANGER_NSLOTS\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_CHANGER_NSLOTS\n"); return cdi->capacity; } @@ -2574,7 +2593,7 @@ static int cdrom_ioctl_get_subchnl(struct cdrom_device_info *cdi, u8 requested, back; int ret; - /* cdinfo(CD_DO_IOCTL,"entering CDROMSUBCHNL\n");*/ + /* cd_dbg(CD_DO_IOCTL,"entering CDROMSUBCHNL\n");*/ if (copy_from_user(&q, argp, sizeof(q))) return -EFAULT; @@ -2594,7 +2613,7 @@ static int cdrom_ioctl_get_subchnl(struct cdrom_device_info *cdi, if (copy_to_user(argp, &q, sizeof(q))) return -EFAULT; - /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */ + /* cd_dbg(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */ return 0; } @@ -2604,7 +2623,7 @@ static int cdrom_ioctl_read_tochdr(struct cdrom_device_info *cdi, struct cdrom_tochdr header; int ret; - /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCHDR\n"); */ + /* cd_dbg(CD_DO_IOCTL, "entering CDROMREADTOCHDR\n"); */ if (copy_from_user(&header, argp, sizeof(header))) return -EFAULT; @@ -2615,7 +2634,7 @@ static int cdrom_ioctl_read_tochdr(struct cdrom_device_info *cdi, if (copy_to_user(argp, &header, sizeof(header))) return -EFAULT; - /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCHDR successful\n"); */ + /* cd_dbg(CD_DO_IOCTL, "CDROMREADTOCHDR successful\n"); */ return 0; } @@ -2626,7 +2645,7 @@ static int cdrom_ioctl_read_tocentry(struct cdrom_device_info *cdi, u8 requested_format; int ret; - /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCENTRY\n"); */ + /* cd_dbg(CD_DO_IOCTL, "entering CDROMREADTOCENTRY\n"); */ if (copy_from_user(&entry, argp, sizeof(entry))) return -EFAULT; @@ -2643,7 +2662,7 @@ static int cdrom_ioctl_read_tocentry(struct cdrom_device_info *cdi, if (copy_to_user(argp, &entry, sizeof(entry))) return -EFAULT; - /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCENTRY successful\n"); */ + /* cd_dbg(CD_DO_IOCTL, "CDROMREADTOCENTRY successful\n"); */ return 0; } @@ -2652,7 +2671,7 @@ static int cdrom_ioctl_play_msf(struct cdrom_device_info *cdi, { struct cdrom_msf msf; - cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYMSF\n"); if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; @@ -2667,7 +2686,7 @@ static int cdrom_ioctl_play_trkind(struct cdrom_device_info *cdi, struct cdrom_ti ti; int ret; - cdinfo(CD_DO_IOCTL, "entering CDROMPLAYTRKIND\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYTRKIND\n"); if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; @@ -2684,7 +2703,7 @@ static int cdrom_ioctl_volctrl(struct cdrom_device_info *cdi, { struct cdrom_volctrl volume; - cdinfo(CD_DO_IOCTL, "entering CDROMVOLCTRL\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMVOLCTRL\n"); if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; @@ -2699,7 +2718,7 @@ static int cdrom_ioctl_volread(struct cdrom_device_info *cdi, struct cdrom_volctrl volume; int ret; - cdinfo(CD_DO_IOCTL, "entering CDROMVOLREAD\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMVOLREAD\n"); if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; @@ -2718,7 +2737,7 @@ static int cdrom_ioctl_audioctl(struct cdrom_device_info *cdi, { int ret; - cdinfo(CD_DO_IOCTL, "doing audio ioctl (start/stop/pause/resume)\n"); + cd_dbg(CD_DO_IOCTL, "doing audio ioctl (start/stop/pause/resume)\n"); if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; @@ -2729,103 +2748,6 @@ static int cdrom_ioctl_audioctl(struct cdrom_device_info *cdi, } /* - * Just about every imaginable ioctl is supported in the Uniform layer - * these days. - * ATAPI / SCSI specific code now mainly resides in mmc_ioctl(). - */ -int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev, - fmode_t mode, unsigned int cmd, unsigned long arg) -{ - void __user *argp = (void __user *)arg; - int ret; - - /* - * Try the generic SCSI command ioctl's first. - */ - ret = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp); - if (ret != -ENOTTY) - return ret; - - switch (cmd) { - case CDROMMULTISESSION: - return cdrom_ioctl_multisession(cdi, argp); - case CDROMEJECT: - return cdrom_ioctl_eject(cdi); - case CDROMCLOSETRAY: - return cdrom_ioctl_closetray(cdi); - case CDROMEJECT_SW: - return cdrom_ioctl_eject_sw(cdi, arg); - case CDROM_MEDIA_CHANGED: - return cdrom_ioctl_media_changed(cdi, arg); - case CDROM_SET_OPTIONS: - return cdrom_ioctl_set_options(cdi, arg); - case CDROM_CLEAR_OPTIONS: - return cdrom_ioctl_clear_options(cdi, arg); - case CDROM_SELECT_SPEED: - return cdrom_ioctl_select_speed(cdi, arg); - case CDROM_SELECT_DISC: - return cdrom_ioctl_select_disc(cdi, arg); - case CDROMRESET: - return cdrom_ioctl_reset(cdi, bdev); - case CDROM_LOCKDOOR: - return cdrom_ioctl_lock_door(cdi, arg); - case CDROM_DEBUG: - return cdrom_ioctl_debug(cdi, arg); - case CDROM_GET_CAPABILITY: - return cdrom_ioctl_get_capability(cdi); - case CDROM_GET_MCN: - return cdrom_ioctl_get_mcn(cdi, argp); - case CDROM_DRIVE_STATUS: - return cdrom_ioctl_drive_status(cdi, arg); - case CDROM_DISC_STATUS: - return cdrom_ioctl_disc_status(cdi); - case CDROM_CHANGER_NSLOTS: - return cdrom_ioctl_changer_nslots(cdi); - } - - /* - * Use the ioctls that are implemented through the generic_packet() - * interface. this may look at bit funny, but if -ENOTTY is - * returned that particular ioctl is not implemented and we - * let it go through the device specific ones. - */ - if (CDROM_CAN(CDC_GENERIC_PACKET)) { - ret = mmc_ioctl(cdi, cmd, arg); - if (ret != -ENOTTY) - return ret; - } - - /* - * Note: most of the cdinfo() calls are commented out here, - * because they fill up the sys log when CD players poll - * the drive. - */ - switch (cmd) { - case CDROMSUBCHNL: - return cdrom_ioctl_get_subchnl(cdi, argp); - case CDROMREADTOCHDR: - return cdrom_ioctl_read_tochdr(cdi, argp); - case CDROMREADTOCENTRY: - return cdrom_ioctl_read_tocentry(cdi, argp); - case CDROMPLAYMSF: - return cdrom_ioctl_play_msf(cdi, argp); - case CDROMPLAYTRKIND: - return cdrom_ioctl_play_trkind(cdi, argp); - case CDROMVOLCTRL: - return cdrom_ioctl_volctrl(cdi, argp); - case CDROMVOLREAD: - return cdrom_ioctl_volread(cdi, argp); - case CDROMSTART: - case CDROMSTOP: - case CDROMPAUSE: - case CDROMRESUME: - return cdrom_ioctl_audioctl(cdi, cmd); - } - - return -ENOSYS; -} - -/* * Required when we need to use READ_10 to issue other than 2048 block * reads */ @@ -2854,10 +2776,158 @@ static int cdrom_switch_blocksize(struct cdrom_device_info *cdi, int size) return cdo->generic_packet(cdi, &cgc); } +static int cdrom_get_track_info(struct cdrom_device_info *cdi, + __u16 track, __u8 type, track_information *ti) +{ + struct cdrom_device_ops *cdo = cdi->ops; + struct packet_command cgc; + int ret, buflen; + + init_cdrom_command(&cgc, ti, 8, CGC_DATA_READ); + cgc.cmd[0] = GPCMD_READ_TRACK_RZONE_INFO; + cgc.cmd[1] = type & 3; + cgc.cmd[4] = (track & 0xff00) >> 8; + cgc.cmd[5] = track & 0xff; + cgc.cmd[8] = 8; + cgc.quiet = 1; + + ret = cdo->generic_packet(cdi, &cgc); + if (ret) + return ret; + + buflen = be16_to_cpu(ti->track_information_length) + + sizeof(ti->track_information_length); + + if (buflen > sizeof(track_information)) + buflen = sizeof(track_information); + + cgc.cmd[8] = cgc.buflen = buflen; + ret = cdo->generic_packet(cdi, &cgc); + if (ret) + return ret; + + /* return actual fill size */ + return buflen; +} + +/* return the last written block on the CD-R media. this is for the udf + file system. */ +int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written) +{ + struct cdrom_tocentry toc; + disc_information di; + track_information ti; + __u32 last_track; + int ret = -1, ti_size; + + if (!CDROM_CAN(CDC_GENERIC_PACKET)) + goto use_toc; + + ret = cdrom_get_disc_info(cdi, &di); + if (ret < (int)(offsetof(typeof(di), last_track_lsb) + + sizeof(di.last_track_lsb))) + goto use_toc; + + /* if unit didn't return msb, it's zeroed by cdrom_get_disc_info */ + last_track = (di.last_track_msb << 8) | di.last_track_lsb; + ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); + if (ti_size < (int)offsetof(typeof(ti), track_start)) + goto use_toc; + + /* if this track is blank, try the previous. */ + if (ti.blank) { + if (last_track == 1) + goto use_toc; + last_track--; + ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); + } + + if (ti_size < (int)(offsetof(typeof(ti), track_size) + + sizeof(ti.track_size))) + goto use_toc; + + /* if last recorded field is valid, return it. */ + if (ti.lra_v && ti_size >= (int)(offsetof(typeof(ti), last_rec_address) + + sizeof(ti.last_rec_address))) { + *last_written = be32_to_cpu(ti.last_rec_address); + } else { + /* make it up instead */ + *last_written = be32_to_cpu(ti.track_start) + + be32_to_cpu(ti.track_size); + if (ti.free_blocks) + *last_written -= (be32_to_cpu(ti.free_blocks) + 7); + } + return 0; + + /* this is where we end up if the drive either can't do a + GPCMD_READ_DISC_INFO or GPCMD_READ_TRACK_RZONE_INFO or if + it doesn't give enough information or fails. then we return + the toc contents. */ +use_toc: + toc.cdte_format = CDROM_MSF; + toc.cdte_track = CDROM_LEADOUT; + if ((ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &toc))) + return ret; + sanitize_format(&toc.cdte_addr, &toc.cdte_format, CDROM_LBA); + *last_written = toc.cdte_addr.lba; + return 0; +} + +/* return the next writable block. also for udf file system. */ +static int cdrom_get_next_writable(struct cdrom_device_info *cdi, + long *next_writable) +{ + disc_information di; + track_information ti; + __u16 last_track; + int ret, ti_size; + + if (!CDROM_CAN(CDC_GENERIC_PACKET)) + goto use_last_written; + + ret = cdrom_get_disc_info(cdi, &di); + if (ret < 0 || ret < offsetof(typeof(di), last_track_lsb) + + sizeof(di.last_track_lsb)) + goto use_last_written; + + /* if unit didn't return msb, it's zeroed by cdrom_get_disc_info */ + last_track = (di.last_track_msb << 8) | di.last_track_lsb; + ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); + if (ti_size < 0 || ti_size < offsetof(typeof(ti), track_start)) + goto use_last_written; + + /* if this track is blank, try the previous. */ + if (ti.blank) { + if (last_track == 1) + goto use_last_written; + last_track--; + ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); + if (ti_size < 0) + goto use_last_written; + } + + /* if next recordable address field is valid, use it. */ + if (ti.nwa_v && ti_size >= offsetof(typeof(ti), next_writable) + + sizeof(ti.next_writable)) { + *next_writable = be32_to_cpu(ti.next_writable); + return 0; + } + +use_last_written: + ret = cdrom_get_last_written(cdi, next_writable); + if (ret) { + *next_writable = 0; + return ret; + } else { + *next_writable += 7; + return 0; + } +} + static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi, - void __user *arg, - struct packet_command *cgc, - int cmd) + void __user *arg, + struct packet_command *cgc, + int cmd) { struct request_sense sense; struct cdrom_msf msf; @@ -2876,7 +2946,8 @@ static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi, blocksize = CD_FRAMESIZE_RAW0; break; } - IOCTL_IN(arg, struct cdrom_msf, msf); + if (copy_from_user(&msf, (struct cdrom_msf __user *)arg, sizeof(msf))) + return -EFAULT; lba = msf_to_lba(msf.cdmsf_min0, msf.cdmsf_sec0, msf.cdmsf_frame0); /* FIXME: we need upper bound checking, too!! */ if (lba < 0) @@ -2891,8 +2962,8 @@ static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi, cgc->data_direction = CGC_DATA_READ; ret = cdrom_read_block(cdi, cgc, lba, 1, format, blocksize); if (ret && sense.sense_key == 0x05 && - sense.asc == 0x20 && - sense.ascq == 0x00) { + sense.asc == 0x20 && + sense.ascq == 0x00) { /* * SCSI-II devices are not required to support * READ_CD, so let's try switching block size @@ -2913,12 +2984,14 @@ out: } static noinline int mmc_ioctl_cdrom_read_audio(struct cdrom_device_info *cdi, - void __user *arg) + void __user *arg) { struct cdrom_read_audio ra; int lba; - IOCTL_IN(arg, struct cdrom_read_audio, ra); + if (copy_from_user(&ra, (struct cdrom_read_audio __user *)arg, + sizeof(ra))) + return -EFAULT; if (ra.addr_format == CDROM_MSF) lba = msf_to_lba(ra.addr.msf.minute, @@ -2937,12 +3010,13 @@ static noinline int mmc_ioctl_cdrom_read_audio(struct cdrom_device_info *cdi, } static noinline int mmc_ioctl_cdrom_subchannel(struct cdrom_device_info *cdi, - void __user *arg) + void __user *arg) { int ret; struct cdrom_subchnl q; u_char requested, back; - IOCTL_IN(arg, struct cdrom_subchnl, q); + if (copy_from_user(&q, (struct cdrom_subchnl __user *)arg, sizeof(q))) + return -EFAULT; requested = q.cdsc_format; if (!((requested == CDROM_MSF) || (requested == CDROM_LBA))) @@ -2954,19 +3028,21 @@ static noinline int mmc_ioctl_cdrom_subchannel(struct cdrom_device_info *cdi, back = q.cdsc_format; /* local copy */ sanitize_format(&q.cdsc_absaddr, &back, requested); sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested); - IOCTL_OUT(arg, struct cdrom_subchnl, q); - /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */ + if (copy_to_user((struct cdrom_subchnl __user *)arg, &q, sizeof(q))) + return -EFAULT; + /* cd_dbg(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */ return 0; } static noinline int mmc_ioctl_cdrom_play_msf(struct cdrom_device_info *cdi, - void __user *arg, - struct packet_command *cgc) + void __user *arg, + struct packet_command *cgc) { struct cdrom_device_ops *cdo = cdi->ops; struct cdrom_msf msf; - cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n"); - IOCTL_IN(arg, struct cdrom_msf, msf); + cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYMSF\n"); + if (copy_from_user(&msf, (struct cdrom_msf __user *)arg, sizeof(msf))) + return -EFAULT; cgc->cmd[0] = GPCMD_PLAY_AUDIO_MSF; cgc->cmd[3] = msf.cdmsf_min0; cgc->cmd[4] = msf.cdmsf_sec0; @@ -2979,13 +3055,14 @@ static noinline int mmc_ioctl_cdrom_play_msf(struct cdrom_device_info *cdi, } static noinline int mmc_ioctl_cdrom_play_blk(struct cdrom_device_info *cdi, - void __user *arg, - struct packet_command *cgc) + void __user *arg, + struct packet_command *cgc) { struct cdrom_device_ops *cdo = cdi->ops; struct cdrom_blk blk; - cdinfo(CD_DO_IOCTL, "entering CDROMPLAYBLK\n"); - IOCTL_IN(arg, struct cdrom_blk, blk); + cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYBLK\n"); + if (copy_from_user(&blk, (struct cdrom_blk __user *)arg, sizeof(blk))) + return -EFAULT; cgc->cmd[0] = GPCMD_PLAY_AUDIO_10; cgc->cmd[2] = (blk.from >> 24) & 0xff; cgc->cmd[3] = (blk.from >> 16) & 0xff; @@ -2998,9 +3075,9 @@ static noinline int mmc_ioctl_cdrom_play_blk(struct cdrom_device_info *cdi, } static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, - void __user *arg, - struct packet_command *cgc, - unsigned int cmd) + void __user *arg, + struct packet_command *cgc, + unsigned int cmd) { struct cdrom_volctrl volctrl; unsigned char buffer[32]; @@ -3008,9 +3085,11 @@ static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, unsigned short offset; int ret; - cdinfo(CD_DO_IOCTL, "entering CDROMVOLUME\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMVOLUME\n"); - IOCTL_IN(arg, struct cdrom_volctrl, volctrl); + if (copy_from_user(&volctrl, (struct cdrom_volctrl __user *)arg, + sizeof(volctrl))) + return -EFAULT; cgc->buffer = buffer; cgc->buflen = 24; @@ -3030,14 +3109,14 @@ static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, if (offset + 16 > cgc->buflen) { cgc->buflen = offset + 16; ret = cdrom_mode_sense(cdi, cgc, - GPMODE_AUDIO_CTL_PAGE, 0); + GPMODE_AUDIO_CTL_PAGE, 0); if (ret) return ret; } /* sanity check */ if ((buffer[offset] & 0x3f) != GPMODE_AUDIO_CTL_PAGE || - buffer[offset + 1] < 14) + buffer[offset + 1] < 14) return -EINVAL; /* now we have the current volume settings. if it was only @@ -3047,7 +3126,9 @@ static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, volctrl.channel1 = buffer[offset+11]; volctrl.channel2 = buffer[offset+13]; volctrl.channel3 = buffer[offset+15]; - IOCTL_OUT(arg, struct cdrom_volctrl, volctrl); + if (copy_to_user((struct cdrom_volctrl __user *)arg, &volctrl, + sizeof(volctrl))) + return -EFAULT; return 0; } @@ -3069,11 +3150,11 @@ static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, } static noinline int mmc_ioctl_cdrom_start_stop(struct cdrom_device_info *cdi, - struct packet_command *cgc, - int cmd) + struct packet_command *cgc, + int cmd) { struct cdrom_device_ops *cdo = cdi->ops; - cdinfo(CD_DO_IOCTL, "entering CDROMSTART/CDROMSTOP\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMSTART/CDROMSTOP\n"); cgc->cmd[0] = GPCMD_START_STOP_UNIT; cgc->cmd[1] = 1; cgc->cmd[4] = (cmd == CDROMSTART) ? 1 : 0; @@ -3082,11 +3163,11 @@ static noinline int mmc_ioctl_cdrom_start_stop(struct cdrom_device_info *cdi, } static noinline int mmc_ioctl_cdrom_pause_resume(struct cdrom_device_info *cdi, - struct packet_command *cgc, - int cmd) + struct packet_command *cgc, + int cmd) { struct cdrom_device_ops *cdo = cdi->ops; - cdinfo(CD_DO_IOCTL, "entering CDROMPAUSE/CDROMRESUME\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROMPAUSE/CDROMRESUME\n"); cgc->cmd[0] = GPCMD_PAUSE_RESUME; cgc->cmd[8] = (cmd == CDROMRESUME) ? 1 : 0; cgc->data_direction = CGC_DATA_NONE; @@ -3094,8 +3175,8 @@ static noinline int mmc_ioctl_cdrom_pause_resume(struct cdrom_device_info *cdi, } static noinline int mmc_ioctl_dvd_read_struct(struct cdrom_device_info *cdi, - void __user *arg, - struct packet_command *cgc) + void __user *arg, + struct packet_command *cgc) { int ret; dvd_struct *s; @@ -3108,7 +3189,7 @@ static noinline int mmc_ioctl_dvd_read_struct(struct cdrom_device_info *cdi, if (!s) return -ENOMEM; - cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); + cd_dbg(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); if (copy_from_user(s, arg, size)) { kfree(s); return -EFAULT; @@ -3126,44 +3207,48 @@ out: } static noinline int mmc_ioctl_dvd_auth(struct cdrom_device_info *cdi, - void __user *arg) + void __user *arg) { int ret; dvd_authinfo ai; if (!CDROM_CAN(CDC_DVD)) return -ENOSYS; - cdinfo(CD_DO_IOCTL, "entering DVD_AUTH\n"); - IOCTL_IN(arg, dvd_authinfo, ai); + cd_dbg(CD_DO_IOCTL, "entering DVD_AUTH\n"); + if (copy_from_user(&ai, (dvd_authinfo __user *)arg, sizeof(ai))) + return -EFAULT; ret = dvd_do_auth(cdi, &ai); if (ret) return ret; - IOCTL_OUT(arg, dvd_authinfo, ai); + if (copy_to_user((dvd_authinfo __user *)arg, &ai, sizeof(ai))) + return -EFAULT; return 0; } static noinline int mmc_ioctl_cdrom_next_writable(struct cdrom_device_info *cdi, - void __user *arg) + void __user *arg) { int ret; long next = 0; - cdinfo(CD_DO_IOCTL, "entering CDROM_NEXT_WRITABLE\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_NEXT_WRITABLE\n"); ret = cdrom_get_next_writable(cdi, &next); if (ret) return ret; - IOCTL_OUT(arg, long, next); + if (copy_to_user((long __user *)arg, &next, sizeof(next))) + return -EFAULT; return 0; } static noinline int mmc_ioctl_cdrom_last_written(struct cdrom_device_info *cdi, - void __user *arg) + void __user *arg) { int ret; long last = 0; - cdinfo(CD_DO_IOCTL, "entering CDROM_LAST_WRITTEN\n"); + cd_dbg(CD_DO_IOCTL, "entering CDROM_LAST_WRITTEN\n"); ret = cdrom_get_last_written(cdi, &last); if (ret) return ret; - IOCTL_OUT(arg, long, last); + if (copy_to_user((long __user *)arg, &last, sizeof(last))) + return -EFAULT; return 0; } @@ -3212,181 +3297,101 @@ static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, return -ENOTTY; } -static int cdrom_get_track_info(struct cdrom_device_info *cdi, __u16 track, __u8 type, - track_information *ti) -{ - struct cdrom_device_ops *cdo = cdi->ops; - struct packet_command cgc; - int ret, buflen; - - init_cdrom_command(&cgc, ti, 8, CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_TRACK_RZONE_INFO; - cgc.cmd[1] = type & 3; - cgc.cmd[4] = (track & 0xff00) >> 8; - cgc.cmd[5] = track & 0xff; - cgc.cmd[8] = 8; - cgc.quiet = 1; - - if ((ret = cdo->generic_packet(cdi, &cgc))) - return ret; - - buflen = be16_to_cpu(ti->track_information_length) + - sizeof(ti->track_information_length); - - if (buflen > sizeof(track_information)) - buflen = sizeof(track_information); - - cgc.cmd[8] = cgc.buflen = buflen; - if ((ret = cdo->generic_packet(cdi, &cgc))) - return ret; - - /* return actual fill size */ - return buflen; -} - -/* requires CD R/RW */ -static int cdrom_get_disc_info(struct cdrom_device_info *cdi, disc_information *di) +/* + * Just about every imaginable ioctl is supported in the Uniform layer + * these days. + * ATAPI / SCSI specific code now mainly resides in mmc_ioctl(). + */ +int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev, + fmode_t mode, unsigned int cmd, unsigned long arg) { - struct cdrom_device_ops *cdo = cdi->ops; - struct packet_command cgc; - int ret, buflen; - - /* set up command and get the disc info */ - init_cdrom_command(&cgc, di, sizeof(*di), CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_DISC_INFO; - cgc.cmd[8] = cgc.buflen = 2; - cgc.quiet = 1; - - if ((ret = cdo->generic_packet(cdi, &cgc))) - return ret; + void __user *argp = (void __user *)arg; + int ret; - /* not all drives have the same disc_info length, so requeue - * packet with the length the drive tells us it can supply + /* + * Try the generic SCSI command ioctl's first. */ - buflen = be16_to_cpu(di->disc_information_length) + - sizeof(di->disc_information_length); - - if (buflen > sizeof(disc_information)) - buflen = sizeof(disc_information); - - cgc.cmd[8] = cgc.buflen = buflen; - if ((ret = cdo->generic_packet(cdi, &cgc))) + ret = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp); + if (ret != -ENOTTY) return ret; - /* return actual fill size */ - return buflen; -} - -/* return the last written block on the CD-R media. this is for the udf - file system. */ -int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written) -{ - struct cdrom_tocentry toc; - disc_information di; - track_information ti; - __u32 last_track; - int ret = -1, ti_size; - - if (!CDROM_CAN(CDC_GENERIC_PACKET)) - goto use_toc; - - ret = cdrom_get_disc_info(cdi, &di); - if (ret < (int)(offsetof(typeof(di), last_track_lsb) - + sizeof(di.last_track_lsb))) - goto use_toc; - - /* if unit didn't return msb, it's zeroed by cdrom_get_disc_info */ - last_track = (di.last_track_msb << 8) | di.last_track_lsb; - ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); - if (ti_size < (int)offsetof(typeof(ti), track_start)) - goto use_toc; - - /* if this track is blank, try the previous. */ - if (ti.blank) { - if (last_track==1) - goto use_toc; - last_track--; - ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); - } - - if (ti_size < (int)(offsetof(typeof(ti), track_size) - + sizeof(ti.track_size))) - goto use_toc; - - /* if last recorded field is valid, return it. */ - if (ti.lra_v && ti_size >= (int)(offsetof(typeof(ti), last_rec_address) - + sizeof(ti.last_rec_address))) { - *last_written = be32_to_cpu(ti.last_rec_address); - } else { - /* make it up instead */ - *last_written = be32_to_cpu(ti.track_start) + - be32_to_cpu(ti.track_size); - if (ti.free_blocks) - *last_written -= (be32_to_cpu(ti.free_blocks) + 7); + switch (cmd) { + case CDROMMULTISESSION: + return cdrom_ioctl_multisession(cdi, argp); + case CDROMEJECT: + return cdrom_ioctl_eject(cdi); + case CDROMCLOSETRAY: + return cdrom_ioctl_closetray(cdi); + case CDROMEJECT_SW: + return cdrom_ioctl_eject_sw(cdi, arg); + case CDROM_MEDIA_CHANGED: + return cdrom_ioctl_media_changed(cdi, arg); + case CDROM_SET_OPTIONS: + return cdrom_ioctl_set_options(cdi, arg); + case CDROM_CLEAR_OPTIONS: + return cdrom_ioctl_clear_options(cdi, arg); + case CDROM_SELECT_SPEED: + return cdrom_ioctl_select_speed(cdi, arg); + case CDROM_SELECT_DISC: + return cdrom_ioctl_select_disc(cdi, arg); + case CDROMRESET: + return cdrom_ioctl_reset(cdi, bdev); + case CDROM_LOCKDOOR: + return cdrom_ioctl_lock_door(cdi, arg); + case CDROM_DEBUG: + return cdrom_ioctl_debug(cdi, arg); + case CDROM_GET_CAPABILITY: + return cdrom_ioctl_get_capability(cdi); + case CDROM_GET_MCN: + return cdrom_ioctl_get_mcn(cdi, argp); + case CDROM_DRIVE_STATUS: + return cdrom_ioctl_drive_status(cdi, arg); + case CDROM_DISC_STATUS: + return cdrom_ioctl_disc_status(cdi); + case CDROM_CHANGER_NSLOTS: + return cdrom_ioctl_changer_nslots(cdi); } - return 0; - /* this is where we end up if the drive either can't do a - GPCMD_READ_DISC_INFO or GPCMD_READ_TRACK_RZONE_INFO or if - it doesn't give enough information or fails. then we return - the toc contents. */ -use_toc: - toc.cdte_format = CDROM_MSF; - toc.cdte_track = CDROM_LEADOUT; - if ((ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &toc))) - return ret; - sanitize_format(&toc.cdte_addr, &toc.cdte_format, CDROM_LBA); - *last_written = toc.cdte_addr.lba; - return 0; -} - -/* return the next writable block. also for udf file system. */ -static int cdrom_get_next_writable(struct cdrom_device_info *cdi, long *next_writable) -{ - disc_information di; - track_information ti; - __u16 last_track; - int ret, ti_size; - - if (!CDROM_CAN(CDC_GENERIC_PACKET)) - goto use_last_written; - - ret = cdrom_get_disc_info(cdi, &di); - if (ret < 0 || ret < offsetof(typeof(di), last_track_lsb) - + sizeof(di.last_track_lsb)) - goto use_last_written; - - /* if unit didn't return msb, it's zeroed by cdrom_get_disc_info */ - last_track = (di.last_track_msb << 8) | di.last_track_lsb; - ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); - if (ti_size < 0 || ti_size < offsetof(typeof(ti), track_start)) - goto use_last_written; - - /* if this track is blank, try the previous. */ - if (ti.blank) { - if (last_track == 1) - goto use_last_written; - last_track--; - ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); - if (ti_size < 0) - goto use_last_written; + /* + * Use the ioctls that are implemented through the generic_packet() + * interface. this may look at bit funny, but if -ENOTTY is + * returned that particular ioctl is not implemented and we + * let it go through the device specific ones. + */ + if (CDROM_CAN(CDC_GENERIC_PACKET)) { + ret = mmc_ioctl(cdi, cmd, arg); + if (ret != -ENOTTY) + return ret; } - /* if next recordable address field is valid, use it. */ - if (ti.nwa_v && ti_size >= offsetof(typeof(ti), next_writable) - + sizeof(ti.next_writable)) { - *next_writable = be32_to_cpu(ti.next_writable); - return 0; + /* + * Note: most of the cd_dbg() calls are commented out here, + * because they fill up the sys log when CD players poll + * the drive. + */ + switch (cmd) { + case CDROMSUBCHNL: + return cdrom_ioctl_get_subchnl(cdi, argp); + case CDROMREADTOCHDR: + return cdrom_ioctl_read_tochdr(cdi, argp); + case CDROMREADTOCENTRY: + return cdrom_ioctl_read_tocentry(cdi, argp); + case CDROMPLAYMSF: + return cdrom_ioctl_play_msf(cdi, argp); + case CDROMPLAYTRKIND: + return cdrom_ioctl_play_trkind(cdi, argp); + case CDROMVOLCTRL: + return cdrom_ioctl_volctrl(cdi, argp); + case CDROMVOLREAD: + return cdrom_ioctl_volread(cdi, argp); + case CDROMSTART: + case CDROMSTOP: + case CDROMPAUSE: + case CDROMRESUME: + return cdrom_ioctl_audioctl(cdi, cmd); } -use_last_written: - if ((ret = cdrom_get_last_written(cdi, next_writable))) { - *next_writable = 0; - return ret; - } else { - *next_writable += 7; - return 0; - } + return -ENOSYS; } EXPORT_SYMBOL(cdrom_get_last_written); |