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ide: add struct ide_tp_ops (take 2)

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* Add struct ide_tp_ops for transport methods.

* Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info
  and ide_hwif_t.

* Set the default hwif->tp_ops in ide_init_port_data().

* Set host driver specific hwif->tp_ops in ide_init_port().

* Export ide_exec_command(), ide_read_status(), ide_read_altstatus(),
  ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}()
  and ata_{in,out}put_data().

* Convert host drivers and core code to use struct ide_tp_ops.

* Remove no longer needed default_hwif_transport().

* Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops.

While at it:

* Use struct ide_port_info in falconide.c and q40ide.c.

* Rename ata_{in,out}put_data() to ide_{in,out}put_data().

v2:

* Fix missing convertion in ns87415.c.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-07-23 19:55:56 +02:00
parent d6276b5f5c
commit 374e042c3e
23 changed files with 358 additions and 225 deletions
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52
include/linux/ide.h
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@@ -408,8 +408,28 @@ typedef struct ide_drive_s {
((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
#define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)
struct ide_task_s;
struct ide_port_info;
struct ide_tp_ops {
void (*exec_command)(struct hwif_s *, u8);
u8 (*read_status)(struct hwif_s *);
u8 (*read_altstatus)(struct hwif_s *);
u8 (*read_sff_dma_status)(struct hwif_s *);
void (*set_irq)(struct hwif_s *, int);
void (*tf_load)(ide_drive_t *, struct ide_task_s *);
void (*tf_read)(ide_drive_t *, struct ide_task_s *);
void (*input_data)(ide_drive_t *, struct request *, void *,
unsigned int);
void (*output_data)(ide_drive_t *, struct request *, void *,
unsigned int);
};
extern const struct ide_tp_ops default_tp_ops;
struct ide_port_ops {
/* host specific initialization of a device */
void (*init_dev)(ide_drive_t *);
@@ -447,8 +467,6 @@ struct ide_dma_ops {
void (*dma_timeout)(struct ide_drive_s *);
};
struct ide_task_s;
typedef struct hwif_s {
struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
struct hwif_s *mate; /* other hwif from same PCI chip */
@@ -486,22 +504,10 @@ typedef struct hwif_s {
void (*rw_disk)(ide_drive_t *, struct request *);
const struct ide_tp_ops *tp_ops;
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;
void (*exec_command)(struct hwif_s *, u8);
u8 (*read_status)(struct hwif_s *);
u8 (*read_altstatus)(struct hwif_s *);
u8 (*read_sff_dma_status)(struct hwif_s *);
void (*set_irq)(struct hwif_s *, int);
void (*tf_load)(ide_drive_t *, struct ide_task_s *);
void (*tf_read)(ide_drive_t *, struct ide_task_s *);
void (*input_data)(ide_drive_t *, struct request *, void *, unsigned);
void (*output_data)(ide_drive_t *, struct request *, void *, unsigned);
void (*ide_dma_clear_irq)(ide_drive_t *drive);
/* dma physical region descriptor table (cpu view) */
@@ -949,6 +955,19 @@ typedef struct ide_task_s {
void ide_tf_dump(const char *, struct ide_taskfile *);
void ide_exec_command(ide_hwif_t *, u8);
u8 ide_read_status(ide_hwif_t *);
u8 ide_read_altstatus(ide_hwif_t *);
u8 ide_read_sff_dma_status(ide_hwif_t *);
void ide_set_irq(ide_hwif_t *, int);
void ide_tf_load(ide_drive_t *, ide_task_t *);
void ide_tf_read(ide_drive_t *, ide_task_t *);
void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
extern void SELECT_DRIVE(ide_drive_t *);
void SELECT_MASK(ide_drive_t *, int);
@@ -1022,8 +1041,6 @@ static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
}
#endif
extern void default_hwif_transport(ide_hwif_t *);
typedef struct ide_pci_enablebit_s {
u8 reg; /* byte pci reg holding the enable-bit */
u8 mask; /* mask to isolate the enable-bit */
@@ -1112,6 +1129,7 @@ struct ide_port_info {
int (*init_dma)(ide_hwif_t *,
const struct ide_port_info *);
const struct ide_tp_ops *tp_ops;
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;