unsigned long irq;
unsigned int irq_flags;
unsigned long host_flags;
+ unsigned long port_flags[ATA_MAX_PORTS];
void __iomem *mmio_base;
void *private_data;
};
void (*exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
u8 (*check_status)(struct ata_port *ap);
+ u8 (*check_altstatus)(struct ata_port *ap);
+ u8 (*check_err)(struct ata_port *ap);
void (*dev_select)(struct ata_port *ap, unsigned int device);
void (*phy_reset) (struct ata_port *ap);
void (*port_stop) (struct ata_port *ap);
void (*host_stop) (struct ata_host_set *host_set);
+
+ void (*bmdma_stop) (struct ata_port *ap);
+ u8 (*bmdma_status) (struct ata_port *ap);
};
struct ata_port_info {
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 u8 ata_chk_err(struct ata_port *ap);
extern void ata_exec_command(struct ata_port *ap, struct ata_taskfile *tf);
extern int ata_port_start (struct ata_port *ap);
extern void ata_port_stop (struct ata_port *ap);
+extern void ata_host_stop (struct ata_host_set *host_set);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern int ata_qc_issue_prot(struct ata_queued_cmd *qc);
unsigned int ofs, unsigned int len);
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_port *ap);
+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_eng_timeout(struct ata_port *ap);
extern struct ata_probe_ent *
ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port);
-extern struct ata_probe_ent *
-ata_pci_init_legacy_mode(struct pci_dev *pdev, struct ata_port_info **port);
extern int pci_test_config_bits(struct pci_dev *pdev, struct pci_bits *bits);
#endif /* CONFIG_PCI */
(dev->class == ATA_DEV_ATAPI));
}
-static inline u8 ata_chk_err(struct ata_port *ap)
-{
- if (ap->flags & ATA_FLAG_MMIO) {
- return readb((void __iomem *) ap->ioaddr.error_addr);
- }
- return inb(ap->ioaddr.error_addr);
-}
-
static inline u8 ata_chk_status(struct ata_port *ap)
{
return ap->ops->check_status(ap);
}
-static inline u8 ata_altstatus(struct ata_port *ap)
-{
- if (ap->flags & ATA_FLAG_MMIO)
- return readb((void __iomem *)ap->ioaddr.altstatus_addr);
- return inb(ap->ioaddr.altstatus_addr);
-}
+
+/**
+ * ata_pause - Flush writes and pause 400 nanoseconds.
+ * @ap: Port to wait for.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
static inline void ata_pause(struct ata_port *ap)
{
ndelay(400);
}
+
+/**
+ * ata_busy_wait - Wait for a port status register
+ * @ap: Port to wait for.
+ *
+ * Waits up to max*10 microseconds for the selected bits in the port's
+ * status register to be cleared.
+ * Returns final value of status register.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+
static inline u8 ata_busy_wait(struct ata_port *ap, unsigned int bits,
unsigned int max)
{
return status;
}
+
+/**
+ * ata_wait_idle - Wait for a port to be idle.
+ * @ap: Port to wait for.
+ *
+ * Waits up to 10ms for port's BUSY and DRQ signals to clear.
+ * Returns final value of status register.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+
static inline u8 ata_wait_idle(struct ata_port *ap)
{
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
tf->device = ATA_DEVICE_OBS | ATA_DEV1;
}
+
+/**
+ * ata_irq_on - Enable interrupts on a port.
+ * @ap: Port on which interrupts are enabled.
+ *
+ * Enable interrupts on a legacy IDE device using MMIO or PIO,
+ * wait for idle, clear any pending interrupts.
+ *
+ * LOCKING:
+ * Inherited from caller.
+ */
+
static inline u8 ata_irq_on(struct ata_port *ap)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
return tmp;
}
+
+/**
+ * ata_irq_ack - Acknowledge a device interrupt.
+ * @ap: Port on which interrupts are enabled.
+ *
+ * Wait up to 10 ms for legacy IDE device to become idle (BUSY
+ * or BUSY+DRQ clear). Obtain dma status and port status from
+ * device. Clear the interrupt. Return port status.
+ *
+ * LOCKING:
+ */
+
static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
{
unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
ap->ops->scr_write(ap, reg, val);
}
-static inline unsigned int sata_dev_present(struct ata_port *ap)
-{
- return ((scr_read(ap, SCR_STATUS) & 0xf) == 0x3) ? 1 : 0;
-}
-
-static inline void ata_bmdma_stop(struct ata_port *ap)
-{
- if (ap->flags & ATA_FLAG_MMIO) {
- void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
-
- /* clear start/stop bit */
- writeb(readb(mmio + ATA_DMA_CMD) & ~ATA_DMA_START,
- mmio + ATA_DMA_CMD);
- } else {
- /* clear start/stop bit */
- outb(inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD) & ~ATA_DMA_START,
- ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
- }
-
- /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */
- ata_altstatus(ap); /* dummy read */
-}
-
-static inline void ata_bmdma_ack_irq(struct ata_port *ap)
+static inline void scr_write_flush(struct ata_port *ap, unsigned int reg,
+ u32 val)
{
- if (ap->flags & ATA_FLAG_MMIO) {
- void __iomem *mmio = ((void __iomem *) ap->ioaddr.bmdma_addr) + ATA_DMA_STATUS;
- writeb(readb(mmio), mmio);
- } else {
- unsigned long addr = ap->ioaddr.bmdma_addr + ATA_DMA_STATUS;
- outb(inb(addr), addr);
- }
+ ap->ops->scr_write(ap, reg, val);
+ (void) ap->ops->scr_read(ap, reg);
}
-static inline u8 ata_bmdma_status(struct ata_port *ap)
+static inline unsigned int sata_dev_present(struct ata_port *ap)
{
- u8 host_stat;
- if (ap->flags & ATA_FLAG_MMIO) {
- void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
- host_stat = readb(mmio + ATA_DMA_STATUS);
- } else
- host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
- return host_stat;
+ return ((scr_read(ap, SCR_STATUS) & 0xf) == 0x3) ? 1 : 0;
}
static inline int ata_try_flush_cache(struct ata_device *dev)
git://git.onelab.eu / linux-2.6.git / blobdiff