15 files changed, 143 insertions, 170 deletions

diff --git a/include/asm-alpha/ide.h b/include/asm-alpha/ide.h
index b7bf68d0407b..f44129abc02c 100644
--- a/include/asm-alpha/ide.h
+++ b/include/asm-alpha/ide.h
@@ -13,9 +13,6 @@
 
 #ifdef __KERNEL__
 
-
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
 static inline int ide_default_irq(unsigned long base)
 {
         switch (base) {
@@ -40,14 +37,6 @@ static inline unsigned long ide_default_io_base(int index)
         }
 }
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
-#ifdef CONFIG_PCI
-#define ide_init_default_irq(base)      (0)
-#else
-#define ide_init_default_irq(base)      ide_default_irq(base)
-#endif
-
 #include <asm-generic/ide_iops.h>
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-arm/ide.h b/include/asm-arm/ide.h
index f348fcf3150b..88f4d231ce4f 100644
--- a/include/asm-arm/ide.h
+++ b/include/asm-arm/ide.h
@@ -17,14 +17,6 @@
 #define MAX_HWIFS       4
 #endif
 
-#if !defined(CONFIG_ARCH_L7200)
-# ifdef CONFIG_ARCH_CLPS7500
-#  define ide_default_io_ctl(base)      ((base) + 0x206) /* obsolete */
-# else
-#  define ide_default_io_ctl(base)      (0)
-# endif
-#endif /* !ARCH_L7200 */
-
 #define __ide_mm_insw(port,addr,len)    readsw(port,addr,len)
 #define __ide_mm_insl(port,addr,len)    readsl(port,addr,len)
 #define __ide_mm_outsw(port,addr,len)   writesw(port,addr,len)
diff --git a/include/asm-blackfin/ide.h b/include/asm-blackfin/ide.h
index 121e272581d6..5b88de115bf4 100644
--- a/include/asm-blackfin/ide.h
+++ b/include/asm-blackfin/ide.h
@@ -19,10 +19,6 @@
 
 #define MAX_HWIFS       1
 
-/* Legacy ... BLK_DEV_IDECS */
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
-
 #include <asm-generic/ide_iops.h>
 
 /****************************************************************************/
diff --git a/include/asm-ia64/ide.h b/include/asm-ia64/ide.h
index 1ccf23809329..8fa3f8cd067a 100644
--- a/include/asm-ia64/ide.h
+++ b/include/asm-ia64/ide.h
@@ -16,8 +16,6 @@
 
 #include <linux/irq.h>
 
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
 static inline int ide_default_irq(unsigned long base)
 {
         switch (base) {
@@ -46,14 +44,6 @@ static inline unsigned long ide_default_io_base(int index)
         }
 }
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
-#ifdef CONFIG_PCI
-#define ide_init_default_irq(base)      (0)
-#else
-#define ide_init_default_irq(base)      ide_default_irq(base)
-#endif
-
 #include <asm-generic/ide_iops.h>
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-m32r/ide.h b/include/asm-m32r/ide.h
index 5d2044e529ab..1e7f6474d130 100644
--- a/include/asm-m32r/ide.h
+++ b/include/asm-m32r/ide.h
@@ -23,8 +23,6 @@
 # endif
 #endif
 
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
 static __inline__ int ide_default_irq(unsigned long base)
 {
         switch (base) {
@@ -65,14 +63,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
         }
 }
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
-#ifdef CONFIG_BLK_DEV_IDEPCI
-#define ide_init_default_irq(base)     (0)
-#else
-#define ide_init_default_irq(base)     ide_default_irq(base)
-#endif
-
 #include <asm-generic/ide_iops.h>
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-mips/mach-generic/ide.h b/include/asm-mips/mach-generic/ide.h
index 4ec2b930dfbb..0f6c251f5fec 100644
--- a/include/asm-mips/mach-generic/ide.h
+++ b/include/asm-mips/mach-generic/ide.h
@@ -27,8 +27,6 @@
 # endif
 #endif
 
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
 static __inline__ int ide_probe_legacy(void)
 {
 #ifdef CONFIG_PCI
@@ -98,14 +96,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
         }
 }
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
-#ifdef CONFIG_BLK_DEV_IDEPCI
-#define ide_init_default_irq(base)      (0)
-#else
-#define ide_init_default_irq(base)      ide_default_irq(base)
-#endif
-
 /* MIPS port and memory-mapped I/O string operations.  */
 static inline void __ide_flush_prologue(void)
 {
diff --git a/include/asm-parisc/ide.h b/include/asm-parisc/ide.h
index be8760fbc8ee..db0c94410095 100644
--- a/include/asm-parisc/ide.h
+++ b/include/asm-parisc/ide.h
@@ -17,8 +17,6 @@
 #define MAX_HWIFS       2
 #endif
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
 #define ide_request_irq(irq,hand,flg,dev,id)    request_irq((irq),(hand),(flg),(dev),(id))
 #define ide_free_irq(irq,dev_id)                free_irq((irq), (dev_id))
 #define ide_request_region(from,extent,name)    request_region((from), (extent), (name))
diff --git a/include/asm-powerpc/ide.h b/include/asm-powerpc/ide.h
index 6d50310ecaea..3d90bf7d3d73 100644
--- a/include/asm-powerpc/ide.h
+++ b/include/asm-powerpc/ide.h
@@ -31,39 +31,48 @@
 #include <linux/hdreg.h>
 #include <linux/ioport.h>
 
-struct ide_machdep_calls {
-        int         (*default_irq)(unsigned long base);
-        unsigned long (*default_io_base)(int index);
-        void        (*ide_init_hwif)(hw_regs_t *hw,
-                                     unsigned long data_port,
-                                     unsigned long ctrl_port,
-                                     int *irq);
-};
-
-extern struct ide_machdep_calls ppc_ide_md;
-
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
+/* FIXME: use ide_platform host driver */
 static __inline__ int ide_default_irq(unsigned long base)
 {
-        if (ppc_ide_md.default_irq)
-                return ppc_ide_md.default_irq(base);
+#ifdef CONFIG_PPLUS
+        switch (base) {
+        case 0x1f0:     return 14;
+        case 0x170:     return 15;
+        }
+#endif
+#ifdef CONFIG_PPC_PREP
+        switch (base) {
+        case 0x1f0:     return 13;
+        case 0x170:     return 13;
+        case 0x1e8:     return 11;
+        case 0x168:     return 10;
+        case 0xfff0:    return 14;      /* MCP(N)750 ide0 */
+        case 0xffe0:    return 15;      /* MCP(N)750 ide1 */
+        }
+#endif
         return 0;
 }
 
+/* FIXME: use ide_platform host driver */
 static __inline__ unsigned long ide_default_io_base(int index)
 {
-        if (ppc_ide_md.default_io_base)
-                return ppc_ide_md.default_io_base(index);
+#ifdef CONFIG_PPLUS
+        switch (index) {
+        case 0:         return 0x1f0;
+        case 1:         return 0x170;
+        }
+#endif
+#ifdef CONFIG_PPC_PREP
+        switch (index) {
+        case 0:         return 0x1f0;
+        case 1:         return 0x170;
+        case 2:         return 0x1e8;
+        case 3:         return 0x168;
+        }
+#endif
         return 0;
 }
 
-#ifdef CONFIG_PCI
-#define ide_init_default_irq(base)      (0)
-#else
-#define ide_init_default_irq(base)      ide_default_irq(base)
-#endif
-
 #ifdef CONFIG_BLK_DEV_MPC8xx_IDE
 #define IDE_ARCH_ACK_INTR  1
 #define ide_ack_intr(hwif) ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
@@ -71,8 +80,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
 
 #endif /* __powerpc64__ */
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_POWERPC_IDE_H */
diff --git a/include/asm-powerpc/mediabay.h b/include/asm-powerpc/mediabay.h
index de83fe196309..df111c362a7f 100644
--- a/include/asm-powerpc/mediabay.h
+++ b/include/asm-powerpc/mediabay.h
@@ -22,10 +22,14 @@ int check_media_bay(struct device_node *which_bay, int what);
 /* Number of bays in the machine or 0 */
 extern int media_bay_count;
 
+#ifdef CONFIG_BLK_DEV_IDE_PMAC
+#include <linux/ide.h>
+
 int check_media_bay_by_base(unsigned long base, int what);
 /* called by IDE PMAC host driver to register IDE controller for media bay */
 int media_bay_set_ide_infos(struct device_node *which_bay, unsigned long base,
-                            int irq, int index);
+                            int irq, ide_hwif_t *hwif);
+#endif
 
 #endif /* __KERNEL__ */
 #endif /* _PPC_MEDIABAY_H */
diff --git a/include/asm-sh/ide.h b/include/asm-sh/ide.h
index 9f8e9142dc33..58e0bdd52be4 100644
--- a/include/asm-sh/ide.h
+++ b/include/asm-sh/ide.h
@@ -14,9 +14,6 @@
 
 #ifdef __KERNEL__
 
-
-#define ide_default_io_ctl(base)        (0)
-
 #include <asm-generic/ide_iops.h>
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-sparc/ide.h b/include/asm-sparc/ide.h
index 4076cb5d1581..afd1736ed480 100644
--- a/include/asm-sparc/ide.h
+++ b/include/asm-sparc/ide.h
@@ -17,8 +17,6 @@
 #undef  MAX_HWIFS
 #define MAX_HWIFS       2
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
 #define __ide_insl(data_reg, buffer, wcount) \
         __ide_insw(data_reg, buffer, (wcount)<<1)
 #define __ide_outsl(data_reg, buffer, wcount) \
diff --git a/include/asm-sparc64/ide.h b/include/asm-sparc64/ide.h
index ac7eb210b941..c5fdabe0b42d 100644
--- a/include/asm-sparc64/ide.h
+++ b/include/asm-sparc64/ide.h
@@ -24,8 +24,6 @@
 # endif
 #endif
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
 #define __ide_insl(data_reg, buffer, wcount) \
         __ide_insw(data_reg, buffer, (wcount)<<1)
 #define __ide_outsl(data_reg, buffer, wcount) \
diff --git a/include/asm-x86/ide.h b/include/asm-x86/ide.h
index c2552d8bebf7..cf9c98e5bdb5 100644
--- a/include/asm-x86/ide.h
+++ b/include/asm-x86/ide.h
@@ -20,8 +20,6 @@
 # endif
 #endif
 
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
 static __inline__ int ide_default_irq(unsigned long base)
 {
         switch (base) {
@@ -60,14 +58,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
         }
 }
 
-#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
-
-#ifdef CONFIG_BLK_DEV_IDEPCI
-#define ide_init_default_irq(base)      (0)
-#else
-#define ide_init_default_irq(base)      ide_default_irq(base)
-#endif
-
 #include <asm-generic/ide_iops.h>
 
 #endif /* __KERNEL__ */
diff --git a/include/linux/hdreg.h b/include/linux/hdreg.h
index e38e75967e74..c37e9241fae7 100644
--- a/include/linux/hdreg.h
+++ b/include/linux/hdreg.h
@@ -422,9 +422,11 @@ struct hd_geometry {
 #define HDIO_SET_NOWERR         0x0325  /* change ignore-write-error flag */
 #define HDIO_SET_DMA            0x0326  /* change use-dma flag */
 #define HDIO_SET_PIO_MODE       0x0327  /* reconfig interface to new speed */
+#ifndef __KERNEL__
 #define HDIO_SCAN_HWIF          0x0328  /* register and (re)scan interface */
-#define HDIO_SET_NICE           0x0329  /* set nice flags */
 #define HDIO_UNREGISTER_HWIF    0x032a  /* unregister interface */
+#endif
+#define HDIO_SET_NICE           0x0329  /* set nice flags */
 #define HDIO_SET_WCACHE         0x032b  /* change write cache enable-disable */
 #define HDIO_SET_ACOUSTIC       0x032c  /* change acoustic behavior */
 #define HDIO_SET_BUSSTATE       0x032d  /* set the bus state of the hwif */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index bc26b2f27359..6c39482fd1a1 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -82,24 +82,10 @@ typedef unsigned char	byte;	/* used everywhere */
 
 #define IDE_FEATURE_OFFSET      IDE_ERROR_OFFSET
 #define IDE_COMMAND_OFFSET      IDE_STATUS_OFFSET
-
-#define IDE_DATA_REG            (HWIF(drive)->io_ports[IDE_DATA_OFFSET])
-#define IDE_ERROR_REG           (HWIF(drive)->io_ports[IDE_ERROR_OFFSET])
-#define IDE_NSECTOR_REG         (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET])
-#define IDE_SECTOR_REG          (HWIF(drive)->io_ports[IDE_SECTOR_OFFSET])
-#define IDE_LCYL_REG            (HWIF(drive)->io_ports[IDE_LCYL_OFFSET])
-#define IDE_HCYL_REG            (HWIF(drive)->io_ports[IDE_HCYL_OFFSET])
-#define IDE_SELECT_REG          (HWIF(drive)->io_ports[IDE_SELECT_OFFSET])
-#define IDE_STATUS_REG          (HWIF(drive)->io_ports[IDE_STATUS_OFFSET])
-#define IDE_CONTROL_REG         (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET])
-#define IDE_IRQ_REG             (HWIF(drive)->io_ports[IDE_IRQ_OFFSET])
-
-#define IDE_FEATURE_REG         IDE_ERROR_REG
-#define IDE_COMMAND_REG         IDE_STATUS_REG
-#define IDE_ALTSTATUS_REG       IDE_CONTROL_REG
-#define IDE_IREASON_REG         IDE_NSECTOR_REG
-#define IDE_BCOUNTL_REG         IDE_LCYL_REG
-#define IDE_BCOUNTH_REG         IDE_HCYL_REG
+#define IDE_ALTSTATUS_OFFSET    IDE_CONTROL_OFFSET
+#define IDE_IREASON_OFFSET      IDE_NSECTOR_OFFSET
+#define IDE_BCOUNTL_OFFSET      IDE_LCYL_OFFSET
+#define IDE_BCOUNTH_OFFSET      IDE_HCYL_OFFSET
 
 #define OK_STAT(stat,good,bad)  (((stat)&((good)|(bad)))==(good))
 #define BAD_R_STAT              (BUSY_STAT   | ERR_STAT)
@@ -169,7 +155,7 @@ enum {		ide_unknown,	ide_generic,	ide_pci,
                 ide_rz1000,     ide_trm290,
                 ide_cmd646,     ide_cy82c693,   ide_4drives,
                 ide_pmac,       ide_etrax100,   ide_acorn,
-                ide_au1xxx,     ide_palm3710,   ide_forced
+                ide_au1xxx,     ide_palm3710
 };
 
 typedef u8 hwif_chipset_t;
@@ -186,14 +172,9 @@ typedef struct hw_regs_s {
 } hw_regs_t;
 
 struct hwif_s * ide_find_port(unsigned long);
-struct hwif_s *ide_deprecated_find_port(unsigned long);
 void ide_init_port_data(struct hwif_s *, unsigned int);
 void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
 
-struct ide_drive_s;
-int ide_register_hw(hw_regs_t *, void (*)(struct ide_drive_s *),
-                    struct hwif_s **);
-
 static inline void ide_std_init_ports(hw_regs_t *hw,
                                       unsigned long io_addr,
                                       unsigned long ctl_addr)
@@ -213,45 +194,6 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 #define MAX_HWIFS       CONFIG_IDE_MAX_HWIFS
 #endif
 
-/* needed on alpha, x86/x86_64, ia64, mips, ppc32 and sh */
-#ifndef IDE_ARCH_OBSOLETE_DEFAULTS
-# define ide_default_io_base(index)     (0)
-# define ide_default_irq(base)          (0)
-# define ide_init_default_irq(base)     (0)
-#endif
-
-#ifdef CONFIG_IDE_ARCH_OBSOLETE_INIT
-static inline void ide_init_hwif_ports(hw_regs_t *hw,
-                                       unsigned long io_addr,
-                                       unsigned long ctl_addr,
-                                       int *irq)
-{
-        if (!ctl_addr)
-                ide_std_init_ports(hw, io_addr, ide_default_io_ctl(io_addr));
-        else
-                ide_std_init_ports(hw, io_addr, ctl_addr);
-
-        if (irq)
-                *irq = 0;
-
-        hw->io_ports[IDE_IRQ_OFFSET] = 0;
-
-#ifdef CONFIG_PPC32
-        if (ppc_ide_md.ide_init_hwif)
-                ppc_ide_md.ide_init_hwif(hw, io_addr, ctl_addr, irq);
-#endif
-}
-#else
-static inline void ide_init_hwif_ports(hw_regs_t *hw,
-                                       unsigned long io_addr,
-                                       unsigned long ctl_addr,
-                                       int *irq)
-{
-        if (io_addr || ctl_addr)
-                printk(KERN_WARNING "%s: must not be called\n", __FUNCTION__);
-}
-#endif /* CONFIG_IDE_ARCH_OBSOLETE_INIT */
-
 /* Currently only m68k, apus and m8xx need it */
 #ifndef IDE_ARCH_ACK_INTR
 # define ide_ack_intr(hwif) (1)
@@ -406,7 +348,7 @@ typedef struct ide_drive_s {
         u8      wcache;         /* status of write cache */
         u8      acoustic;       /* acoustic management */
         u8      media;          /* disk, cdrom, tape, floppy, ... */
-        u8      ctl;            /* "normal" value for IDE_CONTROL_REG */
+        u8      ctl;            /* "normal" value for Control register */
         u8      ready_stat;     /* min status value for drive ready */
         u8      mult_count;     /* current multiple sector setting */
         u8      mult_req;       /* requested multiple sector setting */
@@ -507,8 +449,6 @@ typedef struct hwif_s {
         void    (*maskproc)(ide_drive_t *, int);
         /* check host's drive quirk list */
         void    (*quirkproc)(ide_drive_t *);
-        /* driver soft-power interface */
-        int     (*busproc)(ide_drive_t *, int);
 #endif
         u8 (*mdma_filter)(ide_drive_t *);
         u8 (*udma_filter)(ide_drive_t *);
@@ -578,7 +518,6 @@ typedef struct hwif_s {
 
         unsigned        noprobe    : 1; /* don't probe for this interface */
         unsigned        present    : 1; /* this interface exists */
-        unsigned        hold       : 1; /* this interface is always present */
         unsigned        serialized : 1; /* serialized all channel operation */
         unsigned        sharing_irq: 1; /* 1 = sharing irq with another hwif */
         unsigned        reset      : 1; /* reset after probe */
@@ -586,7 +525,9 @@ typedef struct hwif_s {
         unsigned        mmio       : 1; /* host uses MMIO */
         unsigned        straight8  : 1; /* Alan's straight 8 check */
 
-        struct device   gendev;
+        struct device           gendev;
+        struct device           *portdev;
+
         struct completion gendev_rel_comp; /* To deal with device release() */
 
         void            *hwif_data;     /* extra hwif data */
@@ -647,6 +588,68 @@ int set_io_32bit(ide_drive_t *, int);
 int set_pio_mode(ide_drive_t *, int);
 int set_using_dma(ide_drive_t *, int);
 
+/* ATAPI packet command flags */
+enum {
+        /* set when an error is considered normal - no retry (ide-tape) */
+        PC_FLAG_ABORT                   = (1 << 0),
+        PC_FLAG_SUPPRESS_ERROR          = (1 << 1),
+        PC_FLAG_WAIT_FOR_DSC            = (1 << 2),
+        PC_FLAG_DMA_OK                  = (1 << 3),
+        PC_FLAG_DMA_RECOMMENDED         = (1 << 4),
+        PC_FLAG_DMA_IN_PROGRESS         = (1 << 5),
+        PC_FLAG_DMA_ERROR               = (1 << 6),
+        PC_FLAG_WRITING                 = (1 << 7),
+        /* command timed out */
+        PC_FLAG_TIMEDOUT                = (1 << 8),
+};
+
+struct ide_atapi_pc {
+        /* actual packet bytes */
+        u8 c[12];
+        /* incremented on each retry */
+        int retries;
+        int error;
+
+        /* bytes to transfer */
+        int req_xfer;
+        /* bytes actually transferred */
+        int xferred;
+
+        /* data buffer */
+        u8 *buf;
+        /* current buffer position */
+        u8 *cur_pos;
+        int buf_size;
+        /* missing/available data on the current buffer */
+        int b_count;
+
+        /* the corresponding request */
+        struct request *rq;
+
+        unsigned long flags;
+
+        /*
+         * those are more or less driver-specific and some of them are subject
+         * to change/removal later.
+         */
+        u8 pc_buf[256];
+        void (*idefloppy_callback) (ide_drive_t *);
+        ide_startstop_t (*idetape_callback) (ide_drive_t *);
+
+        /* idetape only */
+        struct idetape_bh *bh;
+        char *b_data;
+
+        /* idescsi only for now */
+        struct scatterlist *sg;
+        unsigned int sg_cnt;
+
+        struct scsi_cmnd *scsi_cmd;
+        void (*done) (struct scsi_cmnd *);
+
+        unsigned long timeout;
+};
+
 #ifdef CONFIG_IDE_PROC_FS
 /*
  * configurable drive settings
@@ -691,6 +694,7 @@ void proc_ide_create(void);
 void proc_ide_destroy(void);
 void ide_proc_register_port(ide_hwif_t *);
 void ide_proc_port_register_devices(ide_hwif_t *);
+void ide_proc_unregister_device(ide_drive_t *);
 void ide_proc_unregister_port(ide_hwif_t *);
 void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
 void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
@@ -724,6 +728,7 @@ static inline void proc_ide_create(void) { ; }
 static inline void proc_ide_destroy(void) { ; }
 static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
 static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
+static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
 static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
 static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
 static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
@@ -990,7 +995,6 @@ extern void do_ide_request(struct request_queue *);
 void ide_init_disk(struct gendisk *, ide_drive_t *);
 
 #ifdef CONFIG_IDEPCI_PCIBUS_ORDER
-extern int ide_scan_direction;
 extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name);
 #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME)
 #else
@@ -1195,7 +1199,7 @@ static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
 void ide_remove_port_from_hwgroup(ide_hwif_t *);
 extern int ide_hwif_request_regions(ide_hwif_t *hwif);
 extern void ide_hwif_release_regions(ide_hwif_t* hwif);
-void ide_unregister(unsigned int, int, int);
+void ide_unregister(unsigned int);
 
 void ide_register_region(struct gendisk *);
 void ide_unregister_region(struct gendisk *);
@@ -1204,6 +1208,8 @@ void ide_undecoded_slave(ide_drive_t *);
 
 int ide_device_add_all(u8 *idx, const struct ide_port_info *);
 int ide_device_add(u8 idx[4], const struct ide_port_info *);
+void ide_port_unregister_devices(ide_hwif_t *);
+void ide_port_scan(ide_hwif_t *);
 
 static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
 {
@@ -1279,6 +1285,7 @@ extern struct mutex ide_cfg_mtx;
 #define local_irq_set(flags)    do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
 
 extern struct bus_type ide_bus_type;
+extern struct class *ide_port_class;
 
 /* check if CACHE FLUSH (EXT) command is supported (bits defined in ATA-6) */
 #define ide_id_has_flush_cache(id)      ((id)->cfs_enable_2 & 0x3000)
@@ -1307,7 +1314,10 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
 
 static inline void ide_set_irq(ide_drive_t *drive, int on)
 {
-        drive->hwif->OUTB(drive->ctl | (on ? 0 : 2), IDE_CONTROL_REG);
+        ide_hwif_t *hwif = drive->hwif;
+
+        hwif->OUTB(drive->ctl | (on ? 0 : 2),
+                   hwif->io_ports[IDE_CONTROL_OFFSET]);
 }
 
 static inline u8 ide_read_status(ide_drive_t *drive)
@@ -1331,4 +1341,26 @@ static inline u8 ide_read_error(ide_drive_t *drive)
         return hwif->INB(hwif->io_ports[IDE_ERROR_OFFSET]);
 }
 
+/*
+ * Too bad. The drive wants to send us data which we are not ready to accept.
+ * Just throw it away.
+ */
+static inline void ide_atapi_discard_data(ide_drive_t *drive, unsigned bcount)
+{
+        ide_hwif_t *hwif = drive->hwif;
+
+        /* FIXME: use ->atapi_input_bytes */
+        while (bcount--)
+                (void)hwif->INB(hwif->io_ports[IDE_DATA_OFFSET]);
+}
+
+static inline void ide_atapi_write_zeros(ide_drive_t *drive, unsigned bcount)
+{
+        ide_hwif_t *hwif = drive->hwif;
+
+        /* FIXME: use ->atapi_output_bytes */
+        while (bcount--)
+                hwif->OUTB(0, hwif->io_ports[IDE_DATA_OFFSET]);
+}
+
 #endif /* _IDE_H */