*/
#define REQ_DRIVE_RESET 0x20
#define REQ_DEVSET_EXEC 0x21
+#define REQ_PARK_HEADS 0x22
+#define REQ_UNPARK_HEADS 0x23
/*
* Check for an interrupt and acknowledge the interrupt status
/* ATAPI device flags */
enum {
IDE_AFLAG_DRQ_INTERRUPT = (1 << 0),
- IDE_AFLAG_MEDIA_CHANGED = (1 << 1),
- /* Drive cannot lock the door. */
- IDE_AFLAG_NO_DOORLOCK = (1 << 2),
/* ide-cd */
/* Drive cannot eject the disc. */
IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17),
/* ide-floppy */
- /* Format in progress */
- IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18),
/* Avoid commands not supported in Clik drive */
IDE_AFLAG_CLIK_DRIVE = (1 << 19),
/* Requires BH algorithm for packets */
IDE_AFLAG_ZIP_DRIVE = (1 << 20),
- /* Write protect */
- IDE_AFLAG_WP = (1 << 21),
/* Supports format progress report */
IDE_AFLAG_SRFP = (1 << 22),
/* retrying in PIO */
IDE_DFLAG_DMA_PIO_RETRY = (1 << 25),
IDE_DFLAG_LBA = (1 << 26),
+ /* don't unload heads */
+ IDE_DFLAG_NO_UNLOAD = (1 << 27),
+ /* heads unloaded, please don't reset port */
+ IDE_DFLAG_PARKED = (1 << 28),
+ IDE_DFLAG_MEDIA_CHANGED = (1 << 29),
+ /* write protect */
+ IDE_DFLAG_WP = (1 << 30),
+ IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 31),
};
struct ide_drive_s {
u8 select; /* basic drive/head select reg value */
u8 retry_pio; /* retrying dma capable host in pio */
u8 waiting_for_dma; /* dma currently in progress */
+ u8 dma; /* atapi dma flag */
u8 quirk_list; /* considered quirky, set for a specific host */
u8 init_speed; /* transfer rate set at boot */
unsigned int *dmatable_cpu;
/* dma physical region descriptor table (dma view) */
dma_addr_t dmatable_dma;
+
+ /* maximum number of PRD table entries */
+ int prd_max_nents;
+ /* PRD entry size in bytes */
+ int prd_ent_size;
+
/* Scatter-gather list used to build the above */
struct scatterlist *sg_table;
int sg_max_nents; /* Maximum number of entries in it */
void ide_init_pc(struct ide_atapi_pc *);
+/* Disk head parking */
+extern wait_queue_head_t ide_park_wq;
+ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
+ char *buf);
+ssize_t ide_park_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t len);
+
/*
* Special requests for ide-tape block device strategy routine.
*
int ide_in_drive_list(u16 *, const struct drive_list_entry *);
#ifdef CONFIG_BLK_DEV_IDEDMA
+int ide_dma_good_drive(ide_drive_t *);
int __ide_dma_bad_drive(ide_drive_t *);
int ide_id_dma_bug(ide_drive_t *);
void ide_check_dma_crc(ide_drive_t *);
ide_startstop_t ide_dma_intr(ide_drive_t *);
+int ide_allocate_dma_engine(ide_hwif_t *);
+void ide_release_dma_engine(ide_hwif_t *);
+
int ide_build_sglist(ide_drive_t *, struct request *);
void ide_destroy_dmatable(ide_drive_t *);
#ifdef CONFIG_BLK_DEV_IDEDMA_SFF
+int config_drive_for_dma(ide_drive_t *);
extern int ide_build_dmatable(ide_drive_t *, struct request *);
-int ide_allocate_dma_engine(ide_hwif_t *);
-void ide_release_dma_engine(ide_hwif_t *);
-
void ide_dma_host_set(ide_drive_t *, int);
extern int ide_dma_setup(ide_drive_t *);
void ide_dma_exec_cmd(ide_drive_t *, u8);
int ide_dma_end(ide_drive_t *);
int ide_dma_test_irq(ide_drive_t *);
extern const struct ide_dma_ops sff_dma_ops;
+#else
+static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; }
#endif /* CONFIG_BLK_DEV_IDEDMA_SFF */
void ide_dma_lost_irq(ide_drive_t *);
static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-#ifndef CONFIG_BLK_DEV_IDEDMA_SFF
static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
-#endif
+#endif /* CONFIG_BLK_DEV_IDEDMA */
#ifdef CONFIG_BLK_DEV_IDEACPI
extern int ide_acpi_exec_tfs(ide_drive_t *drive);