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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-17 18:09:14 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-17 18:09:14 +0200
commit806f80a6fc203ad0bde84e5a9e94572617d2ae45 (patch)
tree20c684323e6e9f24af96df84008f06425a67ec6a /drivers/ide/ide-gd.h
parent79cb380397c834a35952d8497651d93b543ef968 (diff)
downloadop-kernel-dev-806f80a6fc203ad0bde84e5a9e94572617d2ae45.zip
op-kernel-dev-806f80a6fc203ad0bde84e5a9e94572617d2ae45.tar.gz
ide: add generic ATA/ATAPI disk driver
* Add struct ide_disk_ops containing protocol specific methods. * Add 'struct ide_disk_ops *' to ide_drive_t. * Convert ide-{disk,floppy} drivers to use struct ide_disk_ops. * Merge ide-{disk,floppy} drivers into generic ide-gd driver. While at it: - ide_disk_init_capacity() -> ide_disk_get_capacity() Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-gd.h')
-rw-r--r--drivers/ide/ide-gd.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/ide/ide-gd.h b/drivers/ide/ide-gd.h
new file mode 100644
index 0000000..7d3d101
--- /dev/null
+++ b/drivers/ide/ide-gd.h
@@ -0,0 +1,44 @@
+#ifndef __IDE_GD_H
+#define __IDE_GD_H
+
+#define DRV_NAME "ide-gd"
+#define PFX DRV_NAME ": "
+
+/* define to see debug info */
+#define IDE_GD_DEBUG_LOG 0
+
+#if IDE_GD_DEBUG_LOG
+#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
+#else
+#define ide_debug_log(lvl, fmt, args...) do {} while (0)
+#endif
+
+struct ide_disk_obj {
+ ide_drive_t *drive;
+ ide_driver_t *driver;
+ struct gendisk *disk;
+ struct kref kref;
+ unsigned int openers; /* protected by BKL for now */
+
+ /* Last failed packet command */
+ struct ide_atapi_pc *failed_pc;
+ /* used for blk_{fs,pc}_request() requests */
+ struct ide_atapi_pc queued_pc;
+
+ /* Last error information */
+ u8 sense_key, asc, ascq;
+
+ int progress_indication;
+
+ /* Device information */
+ /* Current format */
+ int blocks, block_size, bs_factor;
+ /* Last format capacity descriptor */
+ u8 cap_desc[8];
+ /* Copy of the flexible disk page */
+ u8 flexible_disk_page[32];
+};
+
+sector_t ide_gd_capacity(ide_drive_t *);
+
+#endif /* __IDE_GD_H */
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