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-rw-r--r--include/linux/libata.h28
1 files changed, 26 insertions, 2 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a4cce9936a8..0ba3af7a123 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -172,6 +172,13 @@ enum hsm_task_states {
HSM_ST_ERR,
};
+enum ata_completion_errors {
+ AC_ERR_OTHER = (1 << 0),
+ AC_ERR_DEV = (1 << 1),
+ AC_ERR_ATA_BUS = (1 << 2),
+ AC_ERR_HOST_BUS = (1 << 3),
+};
+
/* forward declarations */
struct scsi_device;
struct ata_port_operations;
@@ -179,7 +186,7 @@ struct ata_port;
struct ata_queued_cmd;
/* typedefs */
-typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, u8 drv_stat);
+typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc, unsigned int err_mask);
struct ata_ioports {
unsigned long cmd_addr;
@@ -453,7 +460,7 @@ extern void ata_bmdma_start (struct ata_queued_cmd *qc);
extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
extern u8 ata_bmdma_status(struct ata_port *ap);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
-extern void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat);
+extern void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask);
extern void ata_eng_timeout(struct ata_port *ap);
extern void ata_scsi_simulate(u16 *id, struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
@@ -716,4 +723,21 @@ static inline int ata_try_flush_cache(const struct ata_device *dev)
ata_id_has_flush_ext(dev->id);
}
+static inline unsigned int ac_err_mask(u8 status)
+{
+ if (status & ATA_BUSY)
+ return AC_ERR_ATA_BUS;
+ if (status & (ATA_ERR | ATA_DF))
+ return AC_ERR_DEV;
+ return 0;
+}
+
+static inline unsigned int __ac_err_mask(u8 status)
+{
+ unsigned int mask = ac_err_mask(status);
+ if (mask == 0)
+ return AC_ERR_OTHER;
+ return mask;
+}
+
#endif /* __LINUX_LIBATA_H__ */