Over the time, ops in ata_port_operations has become a bit confusing.
Reorganize. SFF/BMDMA ops are separated into separate a group as they
will be taken out of ata_port_operations later.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
include/linux/libata.h | 117 +++++++++++++++++++++++++-----------------------
1 files changed, 61 insertions(+), 56 deletions(-)
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a7882a2..7e012d9 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -672,69 +672,74 @@ struct ata_port {
};
struct ata_port_operations {
- void (*dev_config) (struct ata_device *);
+ /*
+ * Command execution
+ */
+ int (*qc_defer)(struct ata_queued_cmd *qc);
+ int (*check_atapi_dma)(struct ata_queued_cmd *qc);
+ void (*qc_prep)(struct ata_queued_cmd *qc);
+ unsigned int (*qc_issue)(struct ata_queued_cmd *qc);
- void (*set_piomode) (struct ata_port *, struct ata_device *);
- void (*set_dmamode) (struct ata_port *, struct ata_device *);
- unsigned long (*mode_filter) (struct ata_device *, unsigned long);
+ /*
+ * Configuration and exception handling
+ */
+ int (*cable_detect)(struct ata_port *ap);
+ unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask);
+ void (*set_piomode)(struct ata_port *ap, struct ata_device *dev);
+ void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev);
+ int (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev);
- void (*tf_load) (struct ata_port *ap, const struct ata_taskfile *tf);
- void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
+ void (*dev_config)(struct ata_device *dev);
- void (*exec_command)(struct ata_port *ap, const struct ata_taskfile *tf);
+ void (*freeze)(struct ata_port *ap);
+ void (*thaw)(struct ata_port *ap);
+ void (*error_handler)(struct ata_port *ap);
+ void (*post_internal_cmd)(struct ata_queued_cmd *qc);
+
+ /*
+ * Optional features
+ */
+ int (*scr_read)(struct ata_port *ap, unsigned int sc_reg, u32 *val);
+ int (*scr_write)(struct ata_port *ap, unsigned int sc_reg, u32 val);
+ void (*pmp_attach)(struct ata_port *ap);
+ void (*pmp_detach)(struct ata_port *ap);
+ int (*enable_pm)(struct ata_port *ap, enum link_pm policy);
+ void (*disable_pm)(struct ata_port *ap);
+
+ /*
+ * Start, stop, suspend and resume
+ */
+ int (*port_suspend)(struct ata_port *ap, pm_message_t mesg);
+ int (*port_resume)(struct ata_port *ap);
+ int (*port_start)(struct ata_port *ap);
+ void (*port_stop)(struct ata_port *ap);
+ void (*host_stop)(struct ata_host *host);
+
+ /*
+ * SFF / taskfile oriented ops
+ */
+ void (*dev_select)(struct ata_port *ap, unsigned int device);
u8 (*check_status)(struct ata_port *ap);
u8 (*check_altstatus)(struct ata_port *ap);
- void (*dev_select)(struct ata_port *ap, unsigned int device);
-
- void (*phy_reset) (struct ata_port *ap); /* obsolete */
- int (*set_mode) (struct ata_link *link, struct ata_device **r_failed_dev);
-
- int (*cable_detect) (struct ata_port *ap);
-
- int (*check_atapi_dma) (struct ata_queued_cmd *qc);
-
- void (*bmdma_setup) (struct ata_queued_cmd *qc);
- void (*bmdma_start) (struct ata_queued_cmd *qc);
-
- unsigned int (*data_xfer) (struct ata_device *dev, unsigned char *buf,
- unsigned int buflen, int rw);
-
- int (*qc_defer) (struct ata_queued_cmd *qc);
- void (*qc_prep) (struct ata_queued_cmd *qc);
- unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
-
- /* port multiplier */
- void (*pmp_attach) (struct ata_port *ap);
- void (*pmp_detach) (struct ata_port *ap);
-
- /* Error handlers. ->error_handler overrides ->eng_timeout and
- * indicates that new-style EH is in place.
+ void (*tf_load)(struct ata_port *ap, const struct ata_taskfile *tf);
+ void (*tf_read)(struct ata_port *ap, struct ata_taskfile *tf);
+ void (*exec_command)(struct ata_port *ap, const struct ata_taskfile *tf);
+ unsigned int (*data_xfer)(struct ata_device *dev, unsigned char *buf,
+ unsigned int buflen, int rw);
+ u8 (*irq_on)(struct ata_port *);
+
+ void (*irq_clear)(struct ata_port *);
+ void (*bmdma_setup)(struct ata_queued_cmd *qc);
+ void (*bmdma_start)(struct ata_queued_cmd *qc);
+ void (*bmdma_stop)(struct ata_queued_cmd *qc);
+ u8 (*bmdma_status)(struct ata_port *ap);
+
+ /*
+ * Obsolete
*/
- void (*eng_timeout) (struct ata_port *ap); /* obsolete */
-
- void (*freeze) (struct ata_port *ap);
- void (*thaw) (struct ata_port *ap);
- void (*error_handler) (struct ata_port *ap);
- void (*post_internal_cmd) (struct ata_queued_cmd *qc);
-
+ void (*phy_reset)(struct ata_port *ap);
+ void (*eng_timeout)(struct ata_port *ap);
irq_handler_t irq_handler;
- void (*irq_clear) (struct ata_port *);
- u8 (*irq_on) (struct ata_port *);
-
- int (*scr_read) (struct ata_port *ap, unsigned int sc_reg, u32 *val);
- int (*scr_write) (struct ata_port *ap, unsigned int sc_reg, u32 val);
-
- int (*port_suspend) (struct ata_port *ap, pm_message_t mesg);
- int (*port_resume) (struct ata_port *ap);
- int (*enable_pm) (struct ata_port *ap, enum link_pm policy);
- void (*disable_pm) (struct ata_port *ap);
- int (*port_start) (struct ata_port *ap);
- void (*port_stop) (struct ata_port *ap);
-
- void (*host_stop) (struct ata_host *host);
-
- void (*bmdma_stop) (struct ata_queued_cmd *qc);
- u8 (*bmdma_status) (struct ata_port *ap);
};
struct ata_port_info {
--
1.5.2.4
-
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