ide: Remove ide_spin_wait_hwgroup() and use special requests instead
[safe/jmp/linux-2.6] / drivers / ide / ide-cd.c
index 8f253e5..465a92c 100644 (file)
@@ -66,11 +66,11 @@ static struct cdrom_info *ide_cd_get(struct gendisk *disk)
        mutex_lock(&idecd_ref_mutex);
        cd = ide_cd_g(disk);
        if (cd) {
-               kref_get(&cd->kref);
-               if (ide_device_get(cd->drive)) {
-                       kref_put(&cd->kref, ide_cd_release);
+               if (ide_device_get(cd->drive))
                        cd = NULL;
-               }
+               else
+                       kref_get(&cd->kref);
+
        }
        mutex_unlock(&idecd_ref_mutex);
        return cd;
@@ -78,9 +78,11 @@ static struct cdrom_info *ide_cd_get(struct gendisk *disk)
 
 static void ide_cd_put(struct cdrom_info *cd)
 {
+       ide_drive_t *drive = cd->drive;
+
        mutex_lock(&idecd_ref_mutex);
-       ide_device_put(cd->drive);
        kref_put(&cd->kref, ide_cd_release);
+       ide_device_put(drive);
        mutex_unlock(&idecd_ref_mutex);
 }
 
@@ -434,7 +436,7 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
                        ide_dump_status_no_sense(drive, "media error (blank)",
                                                 stat);
                        do_end_request = 1;
-               } else if ((err & ~ABRT_ERR) != 0) {
+               } else if ((err & ~ATA_ABORTED) != 0) {
                        /* go to the default handler for other errors */
                        ide_error(drive, "cdrom_decode_status", stat);
                        return 1;
@@ -455,7 +457,7 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
                 * If we got a CHECK_CONDITION status, queue
                 * a request sense command.
                 */
-               if (stat & ERR_STAT)
+               if (stat & ATA_ERR)
                        cdrom_queue_request_sense(drive, NULL, NULL);
        } else {
                blk_dump_rq_flags(rq, "ide-cd: bad rq");
@@ -466,7 +468,7 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
        return 1;
 
 end_request:
-       if (stat & ERR_STAT) {
+       if (stat & ATA_ERR) {
                unsigned long flags;
 
                spin_lock_irqsave(&ide_lock, flags);
@@ -539,7 +541,7 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
                        drive->waiting_for_dma = 0;
 
                /* packet command */
-               ide_execute_command(drive, WIN_PACKETCMD, handler,
+               ide_execute_command(drive, ATA_CMD_PACKET, handler,
                                    ATAPI_WAIT_PC, cdrom_timer_expiry);
                return ide_started;
        } else {
@@ -572,7 +574,7 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive,
                 */
 
                /* check for errors */
-               if (cdrom_decode_status(drive, DRQ_STAT, NULL))
+               if (cdrom_decode_status(drive, ATA_DRQ, NULL))
                        return ide_stopped;
 
                /* ok, next interrupt will be DMA interrupt */
@@ -580,8 +582,8 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive,
                        drive->waiting_for_dma = 1;
        } else {
                /* otherwise, we must wait for DRQ to get set */
-               if (ide_wait_stat(&startstop, drive, DRQ_STAT,
-                               BUSY_STAT, WAIT_READY))
+               if (ide_wait_stat(&startstop, drive, ATA_DRQ,
+                                 ATA_BUSY, WAIT_READY))
                        return startstop;
        }
 
@@ -936,7 +938,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
                thislen = len;
 
        /* If DRQ is clear, the command has completed. */
-       if ((stat & DRQ_STAT) == 0) {
+       if ((stat & ATA_DRQ) == 0) {
                if (blk_fs_request(rq)) {
                        /*
                         * If we're not done reading/writing, complain.
@@ -1111,7 +1113,7 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
 
        if (write) {
                /* disk has become write protected */
-               if (cd->disk->policy) {
+               if (get_disk_ro(cd->disk)) {
                        cdrom_end_request(drive, 0);
                        return ide_stopped;
                }
@@ -1162,13 +1164,12 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
        if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) {
                struct request_queue *q = drive->queue;
                unsigned int alignment;
-               unsigned long addr;
-               unsigned long stack_mask = ~(THREAD_SIZE - 1);
+               char *buf;
 
                if (rq->bio)
-                       addr = (unsigned long)bio_data(rq->bio);
+                       buf = bio_data(rq->bio);
                else
-                       addr = (unsigned long)rq->data;
+                       buf = rq->data;
 
                info->dma = drive->using_dma;
 
@@ -1179,11 +1180,8 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
                 * separate masks.
                 */
                alignment = queue_dma_alignment(q) | q->dma_pad_mask;
-               if (addr & alignment || rq->data_len & alignment)
-                       info->dma = 0;
-
-               if (!((addr & stack_mask) ^
-                     ((unsigned long)current->stack & stack_mask)))
+               if ((unsigned long)buf & alignment || rq->data_len & alignment
+                   || object_is_on_stack(buf))
                        info->dma = 0;
        }
 }
@@ -1204,7 +1202,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
                        unsigned long elapsed = jiffies - info->start_seek;
                        int stat = hwif->tp_ops->read_status(hwif);
 
-                       if ((stat & SEEK_STAT) != SEEK_STAT) {
+                       if ((stat & ATA_DSC) != ATA_DSC) {
                                if (elapsed < IDECD_SEEK_TIMEOUT) {
                                        ide_stall_queue(drive,
                                                        IDECD_SEEK_TIMER);
@@ -1270,9 +1268,9 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
  */
 static void msf_from_bcd(struct atapi_msf *msf)
 {
-       msf->minute = BCD2BIN(msf->minute);
-       msf->second = BCD2BIN(msf->second);
-       msf->frame  = BCD2BIN(msf->frame);
+       msf->minute = bcd2bin(msf->minute);
+       msf->second = bcd2bin(msf->second);
+       msf->frame  = bcd2bin(msf->frame);
 }
 
 int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
@@ -1305,19 +1303,38 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
        int stat;
        unsigned char cmd[BLK_MAX_CDB];
        unsigned len = sizeof(capbuf);
+       u32 blocklen;
 
        memset(cmd, 0, BLK_MAX_CDB);
        cmd[0] = GPCMD_READ_CDVD_CAPACITY;
 
        stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
                               REQ_QUIET);
-       if (stat == 0) {
-               *capacity = 1 + be32_to_cpu(capbuf.lba);
-               *sectors_per_frame =
-                       be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS;
+       if (stat)
+               return stat;
+
+       /*
+        * Sanity check the given block size
+        */
+       blocklen = be32_to_cpu(capbuf.blocklen);
+       switch (blocklen) {
+       case 512:
+       case 1024:
+       case 2048:
+       case 4096:
+               break;
+       default:
+               printk(KERN_ERR "%s: weird block size %u\n",
+                       drive->name, blocklen);
+               printk(KERN_ERR "%s: default to 2kb block size\n",
+                       drive->name);
+               blocklen = 2048;
+               break;
        }
 
-       return stat;
+       *capacity = 1 + be32_to_cpu(capbuf.lba);
+       *sectors_per_frame = blocklen >> SECTOR_BITS;
+       return 0;
 }
 
 static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
@@ -1394,8 +1411,8 @@ int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
                return stat;
 
        if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
-               toc->hdr.first_track = BCD2BIN(toc->hdr.first_track);
-               toc->hdr.last_track  = BCD2BIN(toc->hdr.last_track);
+               toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
+               toc->hdr.last_track  = bcd2bin(toc->hdr.last_track);
        }
 
        ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
@@ -1435,8 +1452,8 @@ int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
                        return stat;
 
                if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
-                       toc->hdr.first_track = (u8)BIN2BCD(CDROM_LEADOUT);
-                       toc->hdr.last_track = (u8)BIN2BCD(CDROM_LEADOUT);
+                       toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);
+                       toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);
                } else {
                        toc->hdr.first_track = CDROM_LEADOUT;
                        toc->hdr.last_track = CDROM_LEADOUT;
@@ -1449,14 +1466,14 @@ int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
        toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);
 
        if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
-               toc->hdr.first_track = BCD2BIN(toc->hdr.first_track);
-               toc->hdr.last_track  = BCD2BIN(toc->hdr.last_track);
+               toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
+               toc->hdr.last_track  = bcd2bin(toc->hdr.last_track);
        }
 
        for (i = 0; i <= ntracks; i++) {
                if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
                        if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)
-                               toc->ent[i].track = BCD2BIN(toc->ent[i].track);
+                               toc->ent[i].track = bcd2bin(toc->ent[i].track);
                        msf_from_bcd(&toc->ent[i].addr.msf);
                }
                toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,
@@ -1640,7 +1657,9 @@ static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
                cdi->mask &= ~CDC_PLAY_AUDIO;
 
        mechtype = buf[8 + 6] >> 5;
-       if (mechtype == mechtype_caddy || mechtype == mechtype_popup)
+       if (mechtype == mechtype_caddy ||
+           mechtype == mechtype_popup ||
+           (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
                cdi->mask |= CDC_CLOSE_TRAY;
 
        if (cdi->sanyo_slot > 0) {
@@ -1790,13 +1809,12 @@ static ide_proc_entry_t idecd_proc[] = {
        { NULL, 0, NULL, NULL }
 };
 
-static void ide_cdrom_add_settings(ide_drive_t *drive)
-{
-       ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1,
-                       &drive->dsc_overlap, NULL);
-}
-#else
-static inline void ide_cdrom_add_settings(ide_drive_t *drive) { ; }
+ide_devset_rw_field(dsc_overlap, dsc_overlap);
+
+static const struct ide_proc_devset idecd_settings[] = {
+       IDE_PROC_DEVSET(dsc_overlap, 0, 1),
+       { 0 },
+};
 #endif
 
 static const struct cd_list_entry ide_cd_quirks_list[] = {
@@ -1838,17 +1856,19 @@ static const struct cd_list_entry ide_cd_quirks_list[] = {
        { "MATSHITADVD-ROM SR-8176", NULL,   IDE_AFLAG_PLAY_AUDIO_OK         },
        { "MATSHITADVD-ROM SR-8174", NULL,   IDE_AFLAG_PLAY_AUDIO_OK         },
        { "Optiarc DVD RW AD-5200A", NULL,   IDE_AFLAG_PLAY_AUDIO_OK         },
+       { "Optiarc DVD RW AD-7200A", NULL,   IDE_AFLAG_PLAY_AUDIO_OK         },
+       { "Optiarc DVD RW AD-7543A", NULL,   IDE_AFLAG_NO_AUTOCLOSE          },
        { NULL, NULL, 0 }
 };
 
-static unsigned int ide_cd_flags(struct hd_driveid *id)
+static unsigned int ide_cd_flags(u16 *id)
 {
        const struct cd_list_entry *cle = ide_cd_quirks_list;
 
        while (cle->id_model) {
-               if (strcmp(cle->id_model, id->model) == 0 &&
+               if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&
                    (cle->id_firmware == NULL ||
-                    strstr(id->fw_rev, cle->id_firmware)))
+                    strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))
                        return cle->cd_flags;
                cle++;
        }
@@ -1860,7 +1880,8 @@ static int ide_cdrom_setup(ide_drive_t *drive)
 {
        struct cdrom_info *cd = drive->driver_data;
        struct cdrom_device_info *cdi = &cd->devinfo;
-       struct hd_driveid *id = drive->id;
+       u16 *id = drive->id;
+       char *fw_rev = (char *)&id[ATA_ID_FW_REV];
        int nslots;
 
        blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn);
@@ -1875,15 +1896,15 @@ static int ide_cdrom_setup(ide_drive_t *drive)
        drive->atapi_flags = IDE_AFLAG_MEDIA_CHANGED | IDE_AFLAG_NO_EJECT |
                       ide_cd_flags(id);
 
-       if ((id->config & 0x0060) == 0x20)
+       if ((id[ATA_ID_CONFIG] & 0x0060) == 0x20)
                drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT;
 
        if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&
-           id->fw_rev[4] == '1' && id->fw_rev[6] <= '2')
+           fw_rev[4] == '1' && fw_rev[6] <= '2')
                drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |
                                     IDE_AFLAG_TOCADDR_AS_BCD);
        else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&
-                id->fw_rev[4] == '1' && id->fw_rev[6] <= '2')
+                fw_rev[4] == '1' && fw_rev[6] <= '2')
                drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;
        else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)
                /* 3 => use CD in slot 0 */
@@ -1902,7 +1923,8 @@ static int ide_cdrom_setup(ide_drive_t *drive)
                cd->devinfo.handle = NULL;
                return 1;
        }
-       ide_cdrom_add_settings(drive);
+
+       ide_proc_register_driver(drive, cd->driver);
        return 0;
 }
 
@@ -1947,12 +1969,12 @@ static ide_driver_t ide_cdrom_driver = {
        .remove                 = ide_cd_remove,
        .version                = IDECD_VERSION,
        .media                  = ide_cdrom,
-       .supports_dsc_overlap   = 1,
        .do_request             = ide_cd_do_request,
        .end_request            = ide_end_request,
        .error                  = __ide_error,
 #ifdef CONFIG_IDE_PROC_FS
        .proc                   = idecd_proc,
+       .settings               = idecd_settings,
 #endif
 };
 
@@ -2087,10 +2109,10 @@ static int ide_cd_probe(ide_drive_t *drive)
 
        if (!strstr("ide-cdrom", drive->driver_req))
                goto failed;
-       if (!drive->present)
-               goto failed;
+
        if (drive->media != ide_cdrom && drive->media != ide_optical)
                goto failed;
+
        /* skip drives that we were told to ignore */
        if (ignore != NULL) {
                if (strstr(ignore, drive->name)) {
@@ -2112,8 +2134,6 @@ static int ide_cd_probe(ide_drive_t *drive)
 
        ide_init_disk(g, drive);
 
-       ide_proc_register_driver(drive, &ide_cdrom_driver);
-
        kref_init(&info->kref);
 
        info->drive = drive;
@@ -2128,7 +2148,6 @@ static int ide_cd_probe(ide_drive_t *drive)
        g->driverfs_dev = &drive->gendev;
        g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
        if (ide_cdrom_setup(drive)) {
-               ide_proc_unregister_driver(drive, &ide_cdrom_driver);
                ide_cd_release(&info->kref);
                goto failed;
        }