module_param(check_media_type, bool, 0);
module_param(mrw_format_restart, bool, 0);
-static DEFINE_SPINLOCK(cdrom_lock);
+static DEFINE_MUTEX(cdrom_mutex);
static const char *mrw_format_status[] = {
"not mrw",
/* 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.
+ */
+#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,
static int cdrom_get_disc_info(struct cdrom_device_info *cdi, disc_information *di);
-#ifdef CONFIG_SYSCTL
static void cdrom_sysctl_register(void);
-#endif /* CONFIG_SYSCTL */
-static struct cdrom_device_info *topCdromPtr;
+
+static LIST_HEAD(cdrom_list);
static int cdrom_dummy_generic_packet(struct cdrom_device_info *cdi,
struct packet_command *cgc)
cdinfo(CD_OPEN, "entering register_cdrom\n");
if (cdo->open == NULL || cdo->release == NULL)
- return -2;
+ return -EINVAL;
if (!banner_printed) {
printk(KERN_INFO "Uniform CD-ROM driver " REVISION "\n");
banner_printed = 1;
-#ifdef CONFIG_SYSCTL
cdrom_sysctl_register();
-#endif /* CONFIG_SYSCTL */
}
ENSURE(drive_status, CDC_DRIVE_STATUS );
cdo->generic_packet = cdrom_dummy_generic_packet;
cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
- spin_lock(&cdrom_lock);
- cdi->next = topCdromPtr;
- topCdromPtr = cdi;
- spin_unlock(&cdrom_lock);
+ mutex_lock(&cdrom_mutex);
+ list_add(&cdi->list, &cdrom_list);
+ mutex_unlock(&cdrom_mutex);
return 0;
}
#undef ENSURE
-int unregister_cdrom(struct cdrom_device_info *unreg)
+void unregister_cdrom(struct cdrom_device_info *cdi)
{
- struct cdrom_device_info *cdi, *prev;
cdinfo(CD_OPEN, "entering unregister_cdrom\n");
- prev = NULL;
- spin_lock(&cdrom_lock);
- cdi = topCdromPtr;
- while (cdi && cdi != unreg) {
- prev = cdi;
- cdi = cdi->next;
- }
-
- if (cdi == NULL) {
- spin_unlock(&cdrom_lock);
- return -2;
- }
- if (prev)
- prev->next = cdi->next;
- else
- topCdromPtr = cdi->next;
-
- spin_unlock(&cdrom_lock);
+ mutex_lock(&cdrom_mutex);
+ list_del(&cdi->list);
+ mutex_unlock(&cdrom_mutex);
if (cdi->exit)
cdi->exit(cdi);
cdi->ops->n_minors--;
cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
- return 0;
}
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;
+ unsigned char *buffer;
+ struct event_header *eh;
+ int ret = 1;
+
+ buffer = kmalloc(8, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ eh = (struct event_header *)buffer;
+
+ init_cdrom_command(&cgc, buffer, 8, 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.cmd[8] = 8;
cgc.quiet = 1;
if (cdi->ops->generic_packet(cdi, &cgc))
- return 1;
+ goto err;
if (be16_to_cpu(eh->data_len) < sizeof(*med))
- return 1;
+ goto err;
if (eh->nea || eh->notification_class != 0x4)
- return 1;
+ goto err;
- memcpy(med, &buffer[sizeof(*eh)], sizeof(*med));
- return 0;
+ memcpy(med, buffer + sizeof(*eh), sizeof(*med));
+ ret = 0;
+err:
+ kfree(buffer);
+ return ret;
}
/*
static int cdrom_mrw_probe_pc(struct cdrom_device_info *cdi)
{
struct packet_command cgc;
- char buffer[16];
+ char *buffer;
+ int ret = 1;
+
+ buffer = kmalloc(16, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ);
cgc.timeout = HZ;
cgc.quiet = 1;
if (!cdrom_mode_sense(cdi, &cgc, MRW_MODE_PC, 0)) {
cdi->mrw_mode_page = MRW_MODE_PC;
- return 0;
+ ret = 0;
} else if (!cdrom_mode_sense(cdi, &cgc, MRW_MODE_PC_PRE1, 0)) {
cdi->mrw_mode_page = MRW_MODE_PC_PRE1;
- return 0;
+ ret = 0;
}
-
- return 1;
+ kfree(buffer);
+ return ret;
}
static int cdrom_is_mrw(struct cdrom_device_info *cdi, int *write)
{
struct packet_command cgc;
struct mrw_feature_desc *mfd;
- unsigned char buffer[16];
+ unsigned char *buffer;
int ret;
*write = 0;
+ buffer = kmalloc(16, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
cgc.cmd[3] = CDF_MRW;
- cgc.cmd[8] = sizeof(buffer);
+ cgc.cmd[8] = 16;
cgc.quiet = 1;
if ((ret = cdi->ops->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
mfd = (struct mrw_feature_desc *)&buffer[sizeof(struct feature_header)];
- if (be16_to_cpu(mfd->feature_code) != CDF_MRW)
- return 1;
+ if (be16_to_cpu(mfd->feature_code) != CDF_MRW) {
+ ret = 1;
+ goto err;
+ }
*write = mfd->write;
if ((ret = cdrom_mrw_probe_pc(cdi))) {
*write = 0;
- return ret;
}
-
- return 0;
+err:
+ kfree(buffer);
+ return ret;
}
static int cdrom_mrw_bgformat(struct cdrom_device_info *cdi, int cont)
{
struct packet_command cgc;
- unsigned char buffer[12];
+ unsigned char *buffer;
int ret;
printk(KERN_INFO "cdrom: %sstarting format\n", cont ? "Re" : "");
+ buffer = kmalloc(12, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
/*
* FmtData bit set (bit 4), format type is 1
*/
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_WRITE);
+ init_cdrom_command(&cgc, buffer, 12, CGC_DATA_WRITE);
cgc.cmd[0] = GPCMD_FORMAT_UNIT;
cgc.cmd[1] = (1 << 4) | 1;
if (ret)
printk(KERN_INFO "cdrom: bgformat failed\n");
+ kfree(buffer);
return ret;
}
{
struct packet_command cgc;
struct mode_page_header *mph;
- char buffer[16];
+ char *buffer;
int ret, offset, size;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ buffer = kmalloc(16, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
- cgc.buffer = buffer;
- cgc.buflen = sizeof(buffer);
+ init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ);
if ((ret = cdrom_mode_sense(cdi, &cgc, cdi->mrw_mode_page, 0)))
- return ret;
+ goto err;
mph = (struct mode_page_header *) buffer;
offset = be16_to_cpu(mph->desc_length);
cgc.buflen = size;
if ((ret = cdrom_mode_select(cdi, &cgc)))
- return ret;
+ goto err;
printk(KERN_INFO "cdrom: %s: mrw address space %s selected\n", cdi->name, mrw_address_space[space]);
- return 0;
+ ret = 0;
+err:
+ kfree(buffer);
+ return ret;
}
static int cdrom_get_random_writable(struct cdrom_device_info *cdi,
struct rwrt_feature_desc *rfd)
{
struct packet_command cgc;
- char buffer[24];
+ char *buffer;
int ret;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ buffer = kmalloc(24, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buffer, 24, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_GET_CONFIGURATION; /* often 0x46 */
cgc.cmd[3] = CDF_RWRT; /* often 0x0020 */
- cgc.cmd[8] = sizeof(buffer); /* often 0x18 */
+ cgc.cmd[8] = 24; /* often 0x18 */
cgc.quiet = 1;
if ((ret = cdi->ops->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
memcpy(rfd, &buffer[sizeof(struct feature_header)], sizeof (*rfd));
- return 0;
+ ret = 0;
+err:
+ kfree(buffer);
+ return ret;
}
static int cdrom_has_defect_mgt(struct cdrom_device_info *cdi)
{
struct packet_command cgc;
- char buffer[16];
+ char *buffer;
__be16 *feature_code;
int ret;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ buffer = kmalloc(16, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
cgc.cmd[3] = CDF_HWDM;
- cgc.cmd[8] = sizeof(buffer);
+ cgc.cmd[8] = 16;
cgc.quiet = 1;
if ((ret = cdi->ops->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
feature_code = (__be16 *) &buffer[sizeof(struct feature_header)];
if (be16_to_cpu(*feature_code) == CDF_HWDM)
- return 0;
-
- return 1;
+ ret = 0;
+err:
+ kfree(buffer);
+ return ret;
}
static int mo_open_write(struct cdrom_device_info *cdi)
{
struct packet_command cgc;
- char buffer[255];
+ char *buffer;
int ret;
- init_cdrom_command(&cgc, &buffer, 4, CGC_DATA_READ);
+ buffer = kmalloc(255, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buffer, 4, CGC_DATA_READ);
cgc.quiet = 1;
/*
}
/* drive gave us no info, let the user go ahead */
- if (ret)
- return 0;
+ if (ret) {
+ ret = 0;
+ goto err;
+ }
- return buffer[3] & 0x80;
+ ret = buffer[3] & 0x80;
+err:
+ kfree(buffer);
+ return ret;
}
static int cdrom_ram_open_write(struct cdrom_device_info *cdi)
static void cdrom_mmc3_profile(struct cdrom_device_info *cdi)
{
struct packet_command cgc;
- char buffer[32];
+ char *buffer;
int ret, mmc3_profile;
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+ buffer = kmalloc(32, GFP_KERNEL);
+ if (!buffer)
+ return;
+
+ init_cdrom_command(&cgc, buffer, 32, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
cgc.cmd[1] = 0;
cgc.cmd[2] = cgc.cmd[3] = 0; /* Starting Feature Number */
- cgc.cmd[8] = sizeof(buffer); /* Allocation Length */
+ cgc.cmd[8] = 32; /* Allocation Length */
cgc.quiet = 1;
if ((ret = cdi->ops->generic_packet(cdi, &cgc)))
mmc3_profile = (buffer[6] << 8) | buffer[7];
cdi->mmc3_profile = mmc3_profile;
+ kfree(buffer);
}
static int cdrom_is_dvd_rw(struct cdrom_device_info *cdi)
check_disk_change(ip->i_bdev);
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");
+ }
cdi->ops->release(cdi);
err:
cdi->use_count--;
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)current->pid);
+ (unsigned int)task_pid_nr(current));
ret=-EMEDIUMTYPE;
goto clean_up_and_return;
}
/* This code is similar to that in open_for_data. The routine is called
whenever an audio play operation is requested.
*/
-int check_for_audio_disc(struct cdrom_device_info * cdi,
- struct cdrom_device_ops * cdo)
+static int check_for_audio_disc(struct cdrom_device_info * cdi,
+ struct cdrom_device_ops * cdo)
{
int ret;
tracktype tracks;
return 0;
}
-/* Admittedly, the logic below could be performed in a nicer way. */
int cdrom_release(struct cdrom_device_info *cdi, struct file *fp)
{
struct cdrom_device_ops *cdo = cdi->ops;
int opened_for_data;
- cdinfo(CD_CLOSE, "entering cdrom_release\n");
+ cdinfo(CD_CLOSE, "entering cdrom_release\n");
if (cdi->use_count > 0)
cdi->use_count--;
- if (cdi->use_count == 0)
+
+ if (cdi->use_count == 0) {
cdinfo(CD_CLOSE, "Use count for \"/dev/%s\" now zero\n", cdi->name);
- if (cdi->use_count == 0)
cdrom_dvd_rw_close_write(cdi);
- if (cdi->use_count == 0 &&
- (cdo->capability & CDC_LOCK) && !keeplocked) {
- cdinfo(CD_CLOSE, "Unlocking door!\n");
- cdo->lock_door(cdi, 0);
+
+ if ((cdo->capability & CDC_LOCK) && !keeplocked) {
+ cdinfo(CD_CLOSE, "Unlocking door!\n");
+ cdo->lock_door(cdi, 0);
+ }
}
+
opened_for_data = !(cdi->options & CDO_USE_FFLAGS) ||
!(fp && fp->f_flags & O_NONBLOCK);
cgc->buffer = (char *) buf;
cgc->buflen = len;
cgc->data_direction = type;
- cgc->timeout = 5*HZ;
+ cgc->timeout = CDROM_DEF_TIMEOUT;
}
/* DVD handling */
static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai)
{
int ret;
- u_char buf[20];
+ u_char *buf;
struct packet_command cgc;
struct cdrom_device_ops *cdo = cdi->ops;
- rpc_state_t rpc_state;
+ rpc_state_t *rpc_state;
+
+ buf = kzalloc(20, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
- memset(buf, 0, sizeof(buf));
init_cdrom_command(&cgc, buf, 0, CGC_DATA_READ);
switch (ai->type) {
setup_report_key(&cgc, ai->lsa.agid, 0);
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
ai->lsa.agid = buf[7] >> 6;
/* Returning data, let host change state */
setup_report_key(&cgc, ai->lsk.agid, 2);
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
copy_key(ai->lsk.key, &buf[4]);
/* Returning data, let host change state */
setup_report_key(&cgc, ai->lsc.agid, 1);
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
copy_chal(ai->lsc.chal, &buf[4]);
/* Returning data, let host change state */
cgc.cmd[2] = ai->lstk.lba >> 24;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
ai->lstk.cpm = (buf[4] >> 7) & 1;
ai->lstk.cp_sec = (buf[4] >> 6) & 1;
setup_report_key(&cgc, ai->lsasf.agid, 5);
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
ai->lsasf.asf = buf[7] & 1;
break;
copy_chal(&buf[4], ai->hsc.chal);
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
ai->type = DVD_LU_SEND_KEY1;
break;
if ((ret = cdo->generic_packet(cdi, &cgc))) {
ai->type = DVD_AUTH_FAILURE;
- return ret;
+ goto err;
}
ai->type = DVD_AUTH_ESTABLISHED;
break;
cdinfo(CD_DVD, "entering DVD_INVALIDATE_AGID\n");
setup_report_key(&cgc, ai->lsa.agid, 0x3f);
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
break;
/* Get region settings */
case DVD_LU_SEND_RPC_STATE:
cdinfo(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;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
- ai->lrpcs.type = rpc_state.type_code;
- ai->lrpcs.vra = rpc_state.vra;
- ai->lrpcs.ucca = rpc_state.ucca;
- ai->lrpcs.region_mask = rpc_state.region_mask;
- ai->lrpcs.rpc_scheme = rpc_state.rpc_scheme;
+ rpc_state = (rpc_state_t *)buf;
+ ai->lrpcs.type = rpc_state->type_code;
+ ai->lrpcs.vra = rpc_state->vra;
+ ai->lrpcs.ucca = rpc_state->ucca;
+ ai->lrpcs.region_mask = rpc_state->region_mask;
+ ai->lrpcs.rpc_scheme = rpc_state->rpc_scheme;
break;
/* Set region settings */
buf[4] = ai->hrpcs.pdrc;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
break;
default:
cdinfo(CD_WARNING, "Invalid DVD key ioctl (%d)\n", ai->type);
- return -ENOTTY;
+ ret = -ENOTTY;
+ goto err;
}
-
- return 0;
+ ret = 0;
+err:
+ kfree(buf);
+ return ret;
}
static int dvd_read_physical(struct cdrom_device_info *cdi, dvd_struct *s)
{
- unsigned char buf[21], *base;
+ unsigned char *buf, *base;
struct dvd_layer *layer;
struct packet_command cgc;
struct cdrom_device_ops *cdo = cdi->ops;
if (layer_num >= DVD_LAYERS)
return -EINVAL;
- init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+ buf = kmalloc(21, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buf, 21, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
cgc.cmd[6] = layer_num;
cgc.cmd[7] = s->type;
cgc.quiet = 1;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
base = &buf[4];
layer = &s->physical.layer[layer_num];
layer->end_sector_l0 = base[13] << 16 | base[14] << 8 | base[15];
layer->bca = base[16] >> 7;
- return 0;
+ ret = 0;
+err:
+ kfree(buf);
+ return ret;
}
static int dvd_read_copyright(struct cdrom_device_info *cdi, dvd_struct *s)
{
int ret;
- u_char buf[8];
+ u_char *buf;
struct packet_command cgc;
struct cdrom_device_ops *cdo = cdi->ops;
- init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+ buf = kmalloc(8, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buf, 8, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
cgc.cmd[6] = s->copyright.layer_num;
cgc.cmd[7] = s->type;
cgc.cmd[9] = cgc.buflen & 0xff;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
s->copyright.cpst = buf[4];
s->copyright.rmi = buf[5];
- return 0;
+ ret = 0;
+err:
+ kfree(buf);
+ return ret;
}
static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s)
static int dvd_read_bca(struct cdrom_device_info *cdi, dvd_struct *s)
{
int ret;
- u_char buf[4 + 188];
+ u_char *buf;
struct packet_command cgc;
struct cdrom_device_ops *cdo = cdi->ops;
- init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+ buf = kmalloc(4 + 188, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buf, 4 + 188, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
cgc.cmd[7] = s->type;
cgc.cmd[9] = cgc.buflen & 0xff;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
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);
- return -EIO;
+ ret = -EIO;
+ goto err;
}
memcpy(s->bca.value, &buf[4], s->bca.len);
-
- return 0;
+ ret = 0;
+err:
+ kfree(buf);
+ return ret;
}
static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s)
{
struct cdrom_device_ops *cdo = cdi->ops;
struct packet_command cgc;
- char buffer[32];
+ char *buffer;
int ret;
+ buffer = kmalloc(32, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ);
cgc.cmd[0] = GPCMD_READ_SUBCHANNEL;
cgc.cmd[1] = 2; /* MSF addressing */
cgc.cmd[8] = 16;
if ((ret = cdo->generic_packet(cdi, &cgc)))
- return ret;
+ goto err;
subchnl->cdsc_audiostatus = cgc.buffer[1];
subchnl->cdsc_format = CDROM_MSF;
subchnl->cdsc_absaddr.msf.second = cgc.buffer[10];
subchnl->cdsc_absaddr.msf.frame = cgc.buffer[11];
- return 0;
+ ret = 0;
+err:
+ kfree(buffer);
+ return ret;
}
/*
static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf,
int lba, int nframes)
{
- request_queue_t *q = cdi->disk->queue;
+ struct request_queue *q = cdi->disk->queue;
struct request *rq;
struct bio *bio;
unsigned int len;
if (ret)
break;
- memset(rq->cmd, 0, sizeof(rq->cmd));
rq->cmd[0] = GPCMD_READ_CD;
rq->cmd[1] = 1 << 2;
rq->cmd[2] = (lba >> 24) & 0xff;
return -EACCES;
if (!CDROM_CAN(CDC_RESET))
return -ENOSYS;
- invalidate_bdev(bdev, 0);
+ invalidate_bdev(bdev);
return cdi->ops->reset(cdi);
}
{
void __user *argp = (void __user *)arg;
int ret;
+ struct gendisk *disk = ip->i_bdev->bd_disk;
/*
* Try the generic SCSI command ioctl's first.
*/
- ret = scsi_cmd_ioctl(file, ip->i_bdev->bd_disk, cmd, argp);
+ ret = scsi_cmd_ioctl(file, disk->queue, disk, cmd, argp);
if (ret != -ENOTTY)
return ret;
return -ENOSYS;
}
-static inline
-int msf_to_lba(char m, char s, char f)
-{
- return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
-}
-
/*
* Required when we need to use READ_10 to issue other than 2048 block
* reads
int check; /* check media type */
} cdrom_sysctl_settings;
+enum cdrom_print_option {
+ CTL_NAME,
+ CTL_SPEED,
+ CTL_SLOTS,
+ CTL_CAPABILITY
+};
+
+static int cdrom_print_info(const char *header, int val, char *info,
+ int *pos, enum cdrom_print_option option)
+{
+ const int max_size = sizeof(cdrom_sysctl_settings.info);
+ struct cdrom_device_info *cdi;
+ int ret;
+
+ ret = scnprintf(info + *pos, max_size - *pos, header);
+ if (!ret)
+ return 1;
+
+ *pos += ret;
+
+ list_for_each_entry(cdi, &cdrom_list, list) {
+ switch (option) {
+ case CTL_NAME:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%s", cdi->name);
+ break;
+ case CTL_SPEED:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%d", cdi->speed);
+ break;
+ case CTL_SLOTS:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%d", cdi->capacity);
+ break;
+ case CTL_CAPABILITY:
+ ret = scnprintf(info + *pos, max_size - *pos,
+ "\t%d", CDROM_CAN(val) != 0);
+ break;
+ default:
+ printk(KERN_INFO "cdrom: invalid option%d\n", option);
+ return 1;
+ }
+ if (!ret)
+ return 1;
+ *pos += ret;
+ }
+
+ return 0;
+}
+
static int cdrom_sysctl_info(ctl_table *ctl, int write, struct file * filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- int pos;
- struct cdrom_device_info *cdi;
+ int pos;
char *info = cdrom_sysctl_settings.info;
+ const int max_size = sizeof(cdrom_sysctl_settings.info);
if (!*lenp || (*ppos && !write)) {
*lenp = 0;
return 0;
}
+ mutex_lock(&cdrom_mutex);
+
pos = sprintf(info, "CD-ROM information, " VERSION "\n");
- pos += sprintf(info+pos, "\ndrive name:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%s", cdi->name);
-
- pos += sprintf(info+pos, "\ndrive speed:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", cdi->speed);
-
- pos += sprintf(info+pos, "\ndrive # of slots:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", cdi->capacity);
-
- pos += sprintf(info+pos, "\nCan close tray:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CLOSE_TRAY) != 0);
-
- pos += sprintf(info+pos, "\nCan open tray:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_OPEN_TRAY) != 0);
-
- pos += sprintf(info+pos, "\nCan lock tray:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_LOCK) != 0);
-
- pos += sprintf(info+pos, "\nCan change speed:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_SELECT_SPEED) != 0);
-
- pos += sprintf(info+pos, "\nCan select disk:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_SELECT_DISC) != 0);
-
- pos += sprintf(info+pos, "\nCan read multisession:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MULTI_SESSION) != 0);
-
- pos += sprintf(info+pos, "\nCan read MCN:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MCN) != 0);
-
- pos += sprintf(info+pos, "\nReports media changed:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MEDIA_CHANGED) != 0);
-
- pos += sprintf(info+pos, "\nCan play audio:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_PLAY_AUDIO) != 0);
-
- pos += sprintf(info+pos, "\nCan write CD-R:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CD_R) != 0);
-
- pos += sprintf(info+pos, "\nCan write CD-RW:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CD_RW) != 0);
-
- pos += sprintf(info+pos, "\nCan read DVD:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD) != 0);
-
- pos += sprintf(info+pos, "\nCan write DVD-R:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD_R) != 0);
-
- pos += sprintf(info+pos, "\nCan write DVD-RAM:");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD_RAM) != 0);
-
- pos += sprintf(info+pos, "\nCan read MRW:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MRW) != 0);
-
- pos += sprintf(info+pos, "\nCan write MRW:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MRW_W) != 0);
-
- pos += sprintf(info+pos, "\nCan write RAM:\t");
- for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
- pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_RAM) != 0);
-
- strcpy(info+pos,"\n\n");
-
- return proc_dostring(ctl, write, filp, buffer, lenp, ppos);
+ if (cdrom_print_info("\ndrive name:\t", 0, info, &pos, CTL_NAME))
+ goto done;
+ if (cdrom_print_info("\ndrive speed:\t", 0, info, &pos, CTL_SPEED))
+ goto done;
+ if (cdrom_print_info("\ndrive # of slots:", 0, info, &pos, CTL_SLOTS))
+ goto done;
+ if (cdrom_print_info("\nCan close tray:\t",
+ CDC_CLOSE_TRAY, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan open tray:\t",
+ CDC_OPEN_TRAY, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan lock tray:\t",
+ CDC_LOCK, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan change speed:",
+ CDC_SELECT_SPEED, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan select disk:",
+ CDC_SELECT_DISC, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read multisession:",
+ CDC_MULTI_SESSION, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read MCN:\t",
+ CDC_MCN, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nReports media changed:",
+ CDC_MEDIA_CHANGED, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan play audio:\t",
+ CDC_PLAY_AUDIO, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write CD-R:\t",
+ CDC_CD_R, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write CD-RW:",
+ CDC_CD_RW, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read DVD:\t",
+ CDC_DVD, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write DVD-R:",
+ CDC_DVD_R, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write DVD-RAM:",
+ CDC_DVD_RAM, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan read MRW:\t",
+ CDC_MRW, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write MRW:\t",
+ CDC_MRW_W, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (cdrom_print_info("\nCan write RAM:\t",
+ CDC_RAM, info, &pos, CTL_CAPABILITY))
+ goto done;
+ if (!scnprintf(info + pos, max_size - pos, "\n\n"))
+ goto done;
+doit:
+ mutex_unlock(&cdrom_mutex);
+ return proc_dostring(ctl, write, filp, buffer, lenp, ppos);
+done:
+ printk(KERN_INFO "cdrom: info buffer too small\n");
+ goto doit;
}
/* Unfortunately, per device settings are not implemented through
{
struct cdrom_device_info *cdi;
- for (cdi = topCdromPtr; cdi != NULL; cdi = cdi->next) {
+ mutex_lock(&cdrom_mutex);
+ list_for_each_entry(cdi, &cdrom_list, list) {
if (autoclose && CDROM_CAN(CDC_CLOSE_TRAY))
cdi->options |= CDO_AUTO_CLOSE;
else if (!autoclose)
else
cdi->options &= ~CDO_CHECK_TYPE;
}
+ mutex_unlock(&cdrom_mutex);
}
static int cdrom_sysctl_handler(ctl_table *ctl, int write, struct file * filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- int *valp = ctl->data;
- int val = *valp;
int ret;
ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
- if (write && *valp != val) {
+ if (write) {
/* we only care for 1 or 0. */
- if (*valp)
- *valp = 1;
- else
- *valp = 0;
+ autoclose = !!cdrom_sysctl_settings.autoclose;
+ autoeject = !!cdrom_sysctl_settings.autoeject;
+ debug = !!cdrom_sysctl_settings.debug;
+ lockdoor = !!cdrom_sysctl_settings.lock;
+ check_media_type = !!cdrom_sysctl_settings.check;
- switch (ctl->ctl_name) {
- case DEV_CDROM_AUTOCLOSE: {
- if (valp == &cdrom_sysctl_settings.autoclose)
- autoclose = cdrom_sysctl_settings.autoclose;
- break;
- }
- case DEV_CDROM_AUTOEJECT: {
- if (valp == &cdrom_sysctl_settings.autoeject)
- autoeject = cdrom_sysctl_settings.autoeject;
- break;
- }
- case DEV_CDROM_DEBUG: {
- if (valp == &cdrom_sysctl_settings.debug)
- debug = cdrom_sysctl_settings.debug;
- break;
- }
- case DEV_CDROM_LOCK: {
- if (valp == &cdrom_sysctl_settings.lock)
- lockdoor = cdrom_sysctl_settings.lock;
- break;
- }
- case DEV_CDROM_CHECK_MEDIA: {
- if (valp == &cdrom_sysctl_settings.check)
- check_media_type = cdrom_sysctl_settings.check;
- break;
- }
- }
/* update the option flags according to the changes. we
don't have per device options through sysctl yet,
but we will have and then this will disappear. */
/* Place files in /proc/sys/dev/cdrom */
static ctl_table cdrom_table[] = {
{
- .ctl_name = DEV_CDROM_INFO,
.procname = "info",
.data = &cdrom_sysctl_settings.info,
.maxlen = CDROM_STR_SIZE,
.proc_handler = &cdrom_sysctl_info,
},
{
- .ctl_name = DEV_CDROM_AUTOCLOSE,
.procname = "autoclose",
.data = &cdrom_sysctl_settings.autoclose,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_AUTOEJECT,
.procname = "autoeject",
.data = &cdrom_sysctl_settings.autoeject,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_DEBUG,
.procname = "debug",
.data = &cdrom_sysctl_settings.debug,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_LOCK,
.procname = "lock",
.data = &cdrom_sysctl_settings.lock,
.maxlen = sizeof(int),
.proc_handler = &cdrom_sysctl_handler,
},
{
- .ctl_name = DEV_CDROM_CHECK_MEDIA,
.procname = "check_media",
.data = &cdrom_sysctl_settings.check,
.maxlen = sizeof(int),
if (initialized == 1)
return;
- cdrom_sysctl_header = register_sysctl_table(cdrom_root_table, 1);
- if (cdrom_root_table->ctl_name && cdrom_root_table->child->de)
- cdrom_root_table->child->de->owner = THIS_MODULE;
+ cdrom_sysctl_header = register_sysctl_table(cdrom_root_table);
/* set the defaults */
cdrom_sysctl_settings.autoclose = autoclose;
unregister_sysctl_table(cdrom_sysctl_header);
}
+#else /* CONFIG_SYSCTL */
+
+static void cdrom_sysctl_register(void)
+{
+}
+
+static void cdrom_sysctl_unregister(void)
+{
+}
+
#endif /* CONFIG_SYSCTL */
static int __init cdrom_init(void)
{
-#ifdef CONFIG_SYSCTL
cdrom_sysctl_register();
-#endif
+
return 0;
}
static void __exit cdrom_exit(void)
{
printk(KERN_INFO "Uniform CD-ROM driver unloaded\n");
-#ifdef CONFIG_SYSCTL
cdrom_sysctl_unregister();
-#endif
}
module_init(cdrom_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff