1 files changed, 68 insertions, 61 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index eddb6daadf4a..4726126f5a59 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -139,6 +139,12 @@ struct ide_io_ports {
 #define WAIT_MIN_SLEEP  (2*HZ/100)      /* 20msec - minimum sleep time */
 
 /*
+ * Op codes for special requests to be handled by ide_special_rq().
+ * Values should be in the range of 0x20 to 0x3f.
+ */
+#define REQ_DRIVE_RESET         0x20
+
+/*
  * Check for an interrupt and acknowledge the interrupt status
  */
 struct hwif_s;
@@ -171,7 +177,7 @@ typedef struct hw_regs_s {
         int             irq;                    /* our irq number */
         ide_ack_intr_t  *ack_intr;              /* acknowledge interrupt */
         hwif_chipset_t  chipset;
-        struct device   *dev;
+        struct device   *dev, *parent;
 } hw_regs_t;
 
 void ide_init_port_data(struct hwif_s *, unsigned int);
@@ -364,7 +370,6 @@ 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 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 */
@@ -406,8 +411,8 @@ typedef struct ide_drive_s {
 struct ide_port_info;
 
 struct ide_port_ops {
-        /* host specific initialization of devices on a port */
-        void    (*port_init_devs)(struct hwif_s *);
+        /* host specific initialization of a device */
+        void    (*init_dev)(ide_drive_t *);
         /* routine to program host for PIO mode */
         void    (*set_pio_mode)(ide_drive_t *, const u8);
         /* routine to program host for DMA mode */
@@ -493,7 +498,7 @@ typedef struct hwif_s {
         void (*ide_dma_clear_irq)(ide_drive_t *drive);
 
         void (*OUTB)(u8 addr, unsigned long port);
-        void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port);
+        void (*OUTBSYNC)(struct hwif_s *hwif, u8 addr, unsigned long port);
 
         u8  (*INB)(unsigned long port);
 
@@ -532,7 +537,6 @@ typedef struct hwif_s {
         unsigned        serialized : 1; /* serialized all channel operation */
         unsigned        sharing_irq: 1; /* 1 = sharing irq with another hwif */
         unsigned        sg_mapped  : 1; /* sg_table and sg_nents are ready */
-        unsigned        mmio       : 1; /* host uses MMIO */
 
         struct device           gendev;
         struct device           *portdev;
@@ -567,8 +571,6 @@ typedef struct hwgroup_s {
         unsigned int sleeping   : 1;
                 /* BOOL: polling active & poll_timeout field valid */
         unsigned int polling    : 1;
-                /* BOOL: in a polling reset situation. Must not trigger another reset yet */
-        unsigned int resetting  : 1;
 
                 /* current drive */
         ide_drive_t *drive;
@@ -604,12 +606,13 @@ enum {
         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),
+        PC_FLAG_DMA_IN_PROGRESS         = (1 << 4),
+        PC_FLAG_DMA_ERROR               = (1 << 5),
+        PC_FLAG_WRITING                 = (1 << 6),
         /* command timed out */
-        PC_FLAG_TIMEDOUT                = (1 << 8),
+        PC_FLAG_TIMEDOUT                = (1 << 7),
+        PC_FLAG_ZIP_DRIVE               = (1 << 8),
+        PC_FLAG_DRQ_INTERRUPT           = (1 << 9),
 };
 
 struct ide_atapi_pc {
@@ -642,8 +645,8 @@ struct ide_atapi_pc {
          * to change/removal later.
          */
         u8 pc_buf[256];
-        void (*idefloppy_callback) (ide_drive_t *);
-        ide_startstop_t (*idetape_callback) (ide_drive_t *);
+
+        void (*callback)(ide_drive_t *);
 
         /* idetape only */
         struct idetape_bh *bh;
@@ -787,7 +790,6 @@ struct ide_driver_s {
         ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
         int             (*end_request)(ide_drive_t *, int, int);
         ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
-        ide_startstop_t (*abort)(ide_drive_t *, struct request *rq);
         struct device_driver    gen_driver;
         int             (*probe)(ide_drive_t *);
         void            (*remove)(ide_drive_t *);
@@ -802,22 +804,6 @@ struct ide_driver_s {
 
 int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
 
-/*
- * ide_hwifs[] is the master data structure used to keep track
- * of just about everything in ide.c.  Whenever possible, routines
- * should be using pointers to a drive (ide_drive_t *) or
- * pointers to a hwif (ide_hwif_t *), rather than indexing this
- * structure directly (the allocation/layout may change!).
- *
- */
-#ifndef _IDE_C
-extern  ide_hwif_t      ide_hwifs[];            /* master data repository */
-#endif
-extern int ide_noacpi;
-extern int ide_acpigtf;
-extern int ide_acpionboot;
-extern int noautodma;
-
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
@@ -845,10 +831,6 @@ ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
 
 ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
 
-ide_startstop_t __ide_abort(ide_drive_t *, struct request *);
-
-extern ide_startstop_t ide_abort(ide_drive_t *, const char *);
-
 extern void ide_fix_driveid(struct hd_driveid *);
 
 extern void ide_fixstring(u8 *, const int, const int);
@@ -857,25 +839,12 @@ int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
 
 extern ide_startstop_t ide_do_reset (ide_drive_t *);
 
-extern void ide_init_drive_cmd (struct request *rq);
-
-/*
- * "action" parameter type for ide_do_drive_cmd() below.
- */
-typedef enum {
-        ide_wait,       /* insert rq at end of list, and wait for it */
-        ide_preempt,    /* insert rq in front of current request */
-        ide_head_wait,  /* insert rq in front of current request and wait for it */
-        ide_end         /* insert rq at end of list, but don't wait for it */
-} ide_action_t;
-
-extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
+extern void ide_do_drive_cmd(ide_drive_t *, struct request *);
 
 extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
 
 enum {
         IDE_TFLAG_LBA48                 = (1 << 0),
-        IDE_TFLAG_NO_SELECT_MASK        = (1 << 1),
         IDE_TFLAG_FLAGGED               = (1 << 2),
         IDE_TFLAG_OUT_DATA              = (1 << 3),
         IDE_TFLAG_OUT_HOB_FEATURE       = (1 << 4),
@@ -980,11 +949,23 @@ typedef struct ide_task_s {
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
 extern void SELECT_DRIVE(ide_drive_t *);
+void SELECT_MASK(ide_drive_t *, int);
 
 extern int drive_is_ready(ide_drive_t *);
 
 void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
 
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
+        ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
+        void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
+        void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *),
+        void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int,
+                           int));
+ide_startstop_t ide_transfer_pc(ide_drive_t *, struct ide_atapi_pc *,
+                                ide_handler_t *, unsigned int, ide_expiry_t *);
+ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_atapi_pc *,
+                             ide_handler_t *, unsigned int, ide_expiry_t *);
+
 ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
 
 void task_end_request(ide_drive_t *, struct request *, u8);
@@ -996,8 +977,6 @@ int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
 int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long);
 int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long);
 
-extern int system_bus_clock(void);
-
 extern int ide_driveid_update(ide_drive_t *);
 extern int ide_config_drive_speed(ide_drive_t *, u8);
 extern u8 eighty_ninty_three (ide_drive_t *);
@@ -1279,16 +1258,43 @@ static inline int ide_dev_is_sata(struct hd_driveid *id)
 u64 ide_get_lba_addr(struct ide_taskfile *, int);
 u8 ide_dump_status(ide_drive_t *, const char *, u8);
 
-typedef struct ide_pio_timings_s {
-        int     setup_time;     /* Address setup (ns) minimum */
-        int     active_time;    /* Active pulse (ns) minimum */
-        int     cycle_time;     /* Cycle time (ns) minimum = */
-                                /* active + recovery (+ setup for some chips) */
-} ide_pio_timings_t;
+struct ide_timing {
+        u8  mode;
+        u8  setup;      /* t1 */
+        u16 act8b;      /* t2 for 8-bit io */
+        u16 rec8b;      /* t2i for 8-bit io */
+        u16 cyc8b;      /* t0 for 8-bit io */
+        u16 active;     /* t2 or tD */
+        u16 recover;    /* t2i or tK */
+        u16 cycle;      /* t0 */
+        u16 udma;       /* t2CYCTYP/2 */
+};
+
+enum {
+        IDE_TIMING_SETUP        = (1 << 0),
+        IDE_TIMING_ACT8B        = (1 << 1),
+        IDE_TIMING_REC8B        = (1 << 2),
+        IDE_TIMING_CYC8B        = (1 << 3),
+        IDE_TIMING_8BIT         = IDE_TIMING_ACT8B | IDE_TIMING_REC8B |
+                                  IDE_TIMING_CYC8B,
+        IDE_TIMING_ACTIVE       = (1 << 4),
+        IDE_TIMING_RECOVER      = (1 << 5),
+        IDE_TIMING_CYCLE        = (1 << 6),
+        IDE_TIMING_UDMA         = (1 << 7),
+        IDE_TIMING_ALL          = IDE_TIMING_SETUP | IDE_TIMING_8BIT |
+                                  IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER |
+                                  IDE_TIMING_CYCLE | IDE_TIMING_UDMA,
+};
+
+struct ide_timing *ide_timing_find_mode(u8);
+u16 ide_pio_cycle_time(ide_drive_t *, u8);
+void ide_timing_merge(struct ide_timing *, struct ide_timing *,
+                      struct ide_timing *, unsigned int);
+int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int);
+
+int ide_scan_pio_blacklist(char *);
 
-unsigned int ide_pio_cycle_time(ide_drive_t *, u8);
 u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8);
-extern const ide_pio_timings_t ide_pio_timings[6];
 
 int ide_set_pio_mode(ide_drive_t *, u8);
 int ide_set_dma_mode(ide_drive_t *, u8);
@@ -1349,7 +1355,8 @@ static inline void ide_set_irq(ide_drive_t *drive, int on)
 {
         ide_hwif_t *hwif = drive->hwif;
 
-        hwif->OUTB(drive->ctl | (on ? 0 : 2), hwif->io_ports.ctl_addr);
+        hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | (on ? 0 : 2),
+                       hwif->io_ports.ctl_addr);
 }
 
 static inline u8 ide_read_status(ide_drive_t *drive)