#include <linux/bio.h>
#include <linux/device.h>
#include <linux/pci.h>
+#include <linux/completion.h>
#include <asm/byteorder.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/semaphore.h>
-/*
- * This is the multiple IDE interface driver, as evolved from hd.c.
- * It supports up to four IDE interfaces, on one or more IRQs (usually 14 & 15).
- * There can be up to two drives per interface, as per the ATA-2 spec.
- *
- * Primary i/f: ide0: major=3; (hda) minor=0; (hdb) minor=64
- * Secondary i/f: ide1: major=22; (hdc or hd1a) minor=0; (hdd or hd1b) minor=64
- * Tertiary i/f: ide2: major=33; (hde) minor=0; (hdf) minor=64
- * Quaternary i/f: ide3: major=34; (hdg) minor=0; (hdh) minor=64
- */
-
/******************************************************************************
* IDE driver configuration options (play with these as desired):
*
#define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */
#define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */
-#define HOST(hwif,chipset) \
-{ \
- return ((hwif)->chipset == chipset) ? 1 : 0; \
-}
-
/*
* Check for an interrupt and acknowledge the interrupt status
*/
} b;
} ata_nsector_t, ata_data_t, atapi_bcount_t, ata_index_t;
-/*
- * ATA-IDE Error Register
- *
- * mark : Bad address mark
- * tzero : Couldn't find track 0
- * abrt : Aborted Command
- * mcr : Media Change Request
- * id : ID field not found
- * mce : Media Change Event
- * ecc : Uncorrectable ECC error
- * bdd : dual meaing
- */
-typedef union {
- unsigned all :8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned mark :1;
- unsigned tzero :1;
- unsigned abrt :1;
- unsigned mcr :1;
- unsigned id :1;
- unsigned mce :1;
- unsigned ecc :1;
- unsigned bdd :1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned bdd :1;
- unsigned ecc :1;
- unsigned mce :1;
- unsigned id :1;
- unsigned mcr :1;
- unsigned abrt :1;
- unsigned tzero :1;
- unsigned mark :1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} ata_error_t;
-
/*
* ATA-IDE Select Register, aka Device-Head
*
} b;
} ata_status_t, atapi_status_t;
-/*
- * ATA-IDE Control Register
- *
- * bit0 : Should be set to zero
- * nIEN : device INTRQ to host
- * SRST : host soft reset bit
- * bit3 : ATA-2 thingy, Should be set to 1
- * reserved456 : Reserved
- * HOB : 48-bit address ordering, High Ordered Bit
- */
-typedef union {
- unsigned all : 8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned bit0 : 1;
- unsigned nIEN : 1;
- unsigned SRST : 1;
- unsigned bit3 : 1;
- unsigned reserved456 : 3;
- unsigned HOB : 1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned HOB : 1;
- unsigned reserved456 : 3;
- unsigned bit3 : 1;
- unsigned SRST : 1;
- unsigned nIEN : 1;
- unsigned bit0 : 1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} ata_control_t;
-
/*
* ATAPI Feature Register
*
} b;
} atapi_error_t;
-/*
- * ATAPI floppy Drive Select Register
- *
- * sam_lun : Logical unit number
- * reserved3 : Reserved
- * drv : The responding drive will be drive 0 (0) or drive 1 (1)
- * one5 : Should be set to 1
- * reserved6 : Reserved
- * one7 : Should be set to 1
- */
-typedef union {
- unsigned all :8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned sam_lun :3;
- unsigned reserved3 :1;
- unsigned drv :1;
- unsigned one5 :1;
- unsigned reserved6 :1;
- unsigned one7 :1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned one7 :1;
- unsigned reserved6 :1;
- unsigned one5 :1;
- unsigned drv :1;
- unsigned reserved3 :1;
- unsigned sam_lun :3;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} atapi_select_t;
-
/*
* Status returned from various ide_ functions
*/
unsigned noprobe : 1; /* from: hdx=noprobe */
unsigned removable : 1; /* 1 if need to do check_media_change */
unsigned attach : 1; /* needed for removable devices */
- unsigned is_flash : 1; /* 1 if probed as flash */
unsigned forced_geom : 1; /* 1 if hdx=c,h,s was given at boot */
unsigned no_unmask : 1; /* disallow setting unmask bit */
unsigned no_io_32bit : 1; /* disallow enabling 32bit I/O */
int crc_count; /* crc counter to reduce drive speed */
struct list_head list;
struct device gendev;
- struct semaphore gendev_rel_sem; /* to deal with device release() */
+ struct completion gendev_rel_comp; /* to deal with device release() */
} ide_drive_t;
#define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
struct device gendev;
- struct semaphore gendev_rel_sem; /* To deal with device release() */
+ struct completion gendev_rel_comp; /* To deal with device release() */
void *hwif_data; /* extra hwif data */
unsigned dma;
void (*led_act)(void *data, int rw);
-} ____cacheline_maxaligned_in_smp ide_hwif_t;
+} ____cacheline_internodealigned_in_smp ide_hwif_t;
/*
* internal ide interrupt handler type
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);
- int (*ioctl)(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long);
ide_proc_entry_t *proc;
- void (*ata_prebuilder)(ide_drive_t *);
- void (*atapi_prebuilder)(ide_drive_t *);
struct device_driver gen_driver;
+ int (*probe)(ide_drive_t *);
+ void (*remove)(ide_drive_t *);
+ void (*shutdown)(ide_drive_t *);
} ide_driver_t;
+#define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
+
int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
/*
extern int noautodma;
extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
-extern int __ide_end_request (ide_drive_t *drive, struct request *rq, int uptodate, int nrsecs);
/*
* This is used on exit from the driver to designate the next irq handler
*/
typedef enum {
ide_wait, /* insert rq at end of list, and wait for it */
- ide_next, /* insert rq immediately after current request */
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;
-/*
- * This function issues a special IDE device request
- * onto the request queue.
- *
- * If action is ide_wait, then the rq is queued at the end of the
- * request queue, and the function sleeps until it has been processed.
- * This is for use when invoked from an ioctl handler.
- *
- * If action is ide_preempt, then the rq is queued at the head of
- * the request queue, displacing the currently-being-processed
- * request and this function returns immediately without waiting
- * for the new rq to be completed. This is VERY DANGEROUS, and is
- * intended for careful use by the ATAPI tape/cdrom driver code.
- *
- * If action is ide_next, then the rq is queued immediately after
- * the currently-being-processed-request (if any), and the function
- * returns without waiting for the new rq to be completed. As above,
- * This is VERY DANGEROUS, and is intended for careful use by the
- * ATAPI tape/cdrom driver code.
- *
- * If action is ide_end, then the rq is queued at the end of the
- * request queue, and the function returns immediately without waiting
- * for the new rq to be completed. This is again intended for careful
- * use by the ATAPI tape/cdrom driver code.
- */
extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
/*
extern void ide_timer_expiry(unsigned long);
extern irqreturn_t ide_intr(int irq, void *dev_id, struct pt_regs *regs);
extern void do_ide_request(request_queue_t *);
-extern void ide_init_subdrivers(void);
void ide_init_disk(struct gendisk *, ide_drive_t *);
#define GOOD_DMA_DRIVE 1
#ifdef CONFIG_BLK_DEV_IDEDMA
+struct drive_list_entry {
+ const char *id_model;
+ const char *id_firmware;
+};
+
+int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
int __ide_dma_bad_drive(ide_drive_t *);
int __ide_dma_good_drive(ide_drive_t *);
int ide_use_dma(ide_drive_t *);
projects / linux-2.6-omap-h63xx.git / blobdiff