libata: track SLEEP state and issue SRST to wake it up

[linux-2.6] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 377e6d4d9be38664320510c77fddc4c5d9cd95ba..2f0fc636b4b6c66e6c2c23cad8132ea60e595b22 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -138,6 +138,7 @@ enum {
        ATA_DFLAG_PIO           = (1 << 12), /* device limited to PIO mode */
        ATA_DFLAG_NCQ_OFF       = (1 << 13), /* device limited to non-NCQ mode */
        ATA_DFLAG_SPUNDOWN      = (1 << 14), /* XXX: for spindown_compat */
+       ATA_DFLAG_SLEEPING      = (1 << 15), /* device is sleeping */
        ATA_DFLAG_INIT_MASK     = (1 << 16) - 1,
 
        ATA_DFLAG_DETACH        = (1 << 16),
@@ -326,7 +327,7 @@ enum {
        ATA_HORKAGE_SKIP_PM     = (1 << 5),     /* Skip PM operations */
        ATA_HORKAGE_HPA_SIZE    = (1 << 6),     /* native size off by one */
 
-        /* DMA mask for user DMA control: User visible values; DO NOT 
+        /* DMA mask for user DMA control: User visible values; DO NOT
            renumber */
        ATA_DMA_MASK_ATA        = (1 << 0),     /* DMA on ATA Disk */
        ATA_DMA_MASK_ATAPI      = (1 << 1),     /* DMA on ATAPI */
@@ -717,7 +718,7 @@ struct ata_timing {
        unsigned short udma;            /* t2CYCTYP/2 */
 };
 
-#define FIT(v,vmin,vmax)       max_t(short,min_t(short,v,vmax),vmin)
+#define FIT(v, vmin, vmax)     max_t(short, min_t(short, v, vmax), vmin)
 
 extern const unsigned long sata_deb_timing_normal[];
 extern const unsigned long sata_deb_timing_hotplug[];
@@ -816,14 +817,14 @@ extern void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
 extern void ata_tf_to_fis(const struct ata_taskfile *tf,
                          u8 pmp, int is_cmd, u8 *fis);
 extern void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf);
-extern void ata_noop_dev_select (struct ata_port *ap, unsigned int device);
-extern void ata_std_dev_select (struct ata_port *ap, unsigned int device);
+extern void ata_noop_dev_select(struct ata_port *ap, unsigned int device);
+extern void ata_std_dev_select(struct ata_port *ap, unsigned int device);
 extern u8 ata_check_status(struct ata_port *ap);
 extern u8 ata_altstatus(struct ata_port *ap);
 extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
-extern int ata_port_start (struct ata_port *ap);
-extern int ata_sff_port_start (struct ata_port *ap);
-extern irqreturn_t ata_interrupt (int irq, void *dev_instance);
+extern int ata_port_start(struct ata_port *ap);
+extern int ata_sff_port_start(struct ata_port *ap);
+extern irqreturn_t ata_interrupt(int irq, void *dev_instance);
 extern void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
                          unsigned int buflen, int write_data);
 extern void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
@@ -844,8 +845,8 @@ extern void ata_id_string(const u16 *id, unsigned char *s,
 extern void ata_id_c_string(const u16 *id, unsigned char *s,
                            unsigned int ofs, unsigned int len);
 extern void ata_id_to_dma_mode(struct ata_device *dev, u8 unknown);
-extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
-extern void ata_bmdma_start (struct ata_queued_cmd *qc);
+extern void ata_bmdma_setup(struct ata_queued_cmd *qc);
+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);
@@ -920,9 +921,9 @@ static inline int ata_acpi_cbl_80wire(struct ata_port *ap) { return 0; }
 #ifdef CONFIG_PCI
 struct pci_dev;
 
-extern int ata_pci_init_one (struct pci_dev *pdev,
+extern int ata_pci_init_one(struct pci_dev *pdev,
                             const struct ata_port_info * const * ppi);
-extern void ata_pci_remove_one (struct pci_dev *pdev);
+extern void ata_pci_remove_one(struct pci_dev *pdev);
 #ifdef CONFIG_PM
 extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg);
 extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev);
@@ -1037,18 +1038,6 @@ extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
 /*
  * qc helpers
  */
-static inline int
-ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc)
-{
-       if (sg == &qc->pad_sgent)
-               return 1;
-       if (qc->pad_len)
-               return 0;
-       if (qc->n_iter == qc->n_elem)
-               return 1;
-       return 0;
-}
-
 static inline struct scatterlist *
 ata_qc_first_sg(struct ata_queued_cmd *qc)
 {