]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/ide/ide-cd.c
ide: add device flags
[linux-2.6-omap-h63xx.git] / drivers / ide / ide-cd.c
index 03c2cb6a58bc063070d04d4d63f715e7520e1fd0..ea7cd4e0b1570b6f65108960578da33944de41dc 100644 (file)
 
 static DEFINE_MUTEX(idecd_ref_mutex);
 
-#define to_ide_cd(obj) container_of(obj, struct cdrom_info, kref)
-
-#define ide_cd_g(disk) \
-       container_of((disk)->private_data, struct cdrom_info, driver)
-
 static void ide_cd_release(struct kref *);
 
 static struct cdrom_info *ide_cd_get(struct gendisk *disk)
@@ -64,7 +59,7 @@ static struct cdrom_info *ide_cd_get(struct gendisk *disk)
        struct cdrom_info *cd = NULL;
 
        mutex_lock(&idecd_ref_mutex);
-       cd = ide_cd_g(disk);
+       cd = ide_drv_g(disk, cdrom_info);
        if (cd) {
                if (ide_device_get(cd->drive))
                        cd = NULL;
@@ -436,7 +431,7 @@ 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;
@@ -457,7 +452,7 @@ 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");
@@ -468,7 +463,7 @@ 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);
@@ -541,7 +536,7 @@ 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 {
@@ -574,7 +569,7 @@ 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 */
@@ -582,8 +577,8 @@ 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;
        }
 
@@ -746,7 +741,7 @@ static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive)
 
        if (retry && time_after(jiffies, info->start_seek + IDECD_SEEK_TIMER)) {
                if (--retry == 0)
-                       drive->dsc_overlap = 0;
+                       drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
        }
        return ide_stopped;
 }
@@ -938,7 +933,7 @@ 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.
@@ -1134,7 +1129,7 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
                }
                cd->dma = 0;
        } else
-               cd->dma = drive->using_dma;
+               cd->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
 
        if (write)
                cd->devinfo.media_written = 1;
@@ -1164,15 +1159,14 @@ 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;
+               info->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
 
                /*
                 * check if dma is safe
@@ -1181,11 +1175,8 @@ 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;
        }
 }
@@ -1206,7 +1197,7 @@ 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);
@@ -1220,7 +1211,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
                if (rq_data_dir(rq) == READ &&
                    IDE_LARGE_SEEK(info->last_block, block,
                            IDECD_SEEK_THRESHOLD) &&
-                   drive->dsc_overlap) {
+                   (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP)) {
                        xferlen = 0;
                        fn = cdrom_start_seek_continuation;
 
@@ -1813,13 +1804,12 @@ 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_flag(dsc_overlap, IDE_DFLAG_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[] = {
@@ -1866,14 +1856,14 @@ static const struct cd_list_entry ide_cd_quirks_list[] = {
        { 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++;
        }
@@ -1885,7 +1875,8 @@ 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);
@@ -1900,15 +1891,15 @@ 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 */
@@ -1919,7 +1910,10 @@ static int ide_cdrom_setup(ide_drive_t *drive)
        /* set correct block size */
        blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE);
 
-       drive->dsc_overlap = (drive->next != drive);
+       if (drive->next != drive)
+               drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP;
+       else
+               drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
 
        if (ide_cdrom_register(drive, nslots)) {
                printk(KERN_ERR "%s: %s failed to register device with the"
@@ -1927,7 +1921,8 @@ 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;
 }
 
@@ -1944,7 +1939,7 @@ static void ide_cd_remove(ide_drive_t *drive)
 
 static void ide_cd_release(struct kref *kref)
 {
-       struct cdrom_info *info = to_ide_cd(kref);
+       struct cdrom_info *info = to_ide_drv(kref, cdrom_info);
        struct cdrom_device_info *devinfo = &info->devinfo;
        ide_drive_t *drive = info->drive;
        struct gendisk *g = info->disk;
@@ -1952,7 +1947,7 @@ static void ide_cd_release(struct kref *kref)
        kfree(info->toc);
        if (devinfo->handle == drive)
                unregister_cdrom(devinfo);
-       drive->dsc_overlap = 0;
+       drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
        drive->driver_data = NULL;
        blk_queue_prep_rq(drive->queue, NULL);
        g->private_data = NULL;
@@ -1972,12 +1967,12 @@ 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
 };
 
@@ -2002,7 +1997,7 @@ static int idecd_open(struct inode *inode, struct file *file)
 static int idecd_release(struct inode *inode, struct file *file)
 {
        struct gendisk *disk = inode->i_bdev->bd_disk;
-       struct cdrom_info *info = ide_cd_g(disk);
+       struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
 
        cdrom_release(&info->devinfo, file);
 
@@ -2054,7 +2049,7 @@ static int idecd_ioctl(struct inode *inode, struct file *file,
                        unsigned int cmd, unsigned long arg)
 {
        struct block_device *bdev = inode->i_bdev;
-       struct cdrom_info *info = ide_cd_g(bdev->bd_disk);
+       struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
        int err;
 
        switch (cmd) {
@@ -2075,13 +2070,13 @@ static int idecd_ioctl(struct inode *inode, struct file *file,
 
 static int idecd_media_changed(struct gendisk *disk)
 {
-       struct cdrom_info *info = ide_cd_g(disk);
+       struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
        return cdrom_media_changed(&info->devinfo);
 }
 
 static int idecd_revalidate_disk(struct gendisk *disk)
 {
-       struct cdrom_info *info = ide_cd_g(disk);
+       struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
        struct request_sense sense;
 
        ide_cd_read_toc(info->drive, &sense);
@@ -2112,10 +2107,10 @@ 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)) {
@@ -2137,8 +2132,6 @@ 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;
@@ -2153,7 +2146,6 @@ 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;
        }