diff options
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 1209 |
1 files changed, 735 insertions, 474 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 9918772bf274..c47e371554c1 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -8,7 +8,7 @@ #include <linux/init.h> #include <linux/ioport.h> -#include <linux/hdreg.h> +#include <linux/ata.h> #include <linux/blkdev.h> #include <linux/proc_fs.h> #include <linux/interrupt.h> @@ -17,6 +17,7 @@ #include <linux/device.h> #include <linux/pci.h> #include <linux/completion.h> +#include <linux/pm.h> #ifdef CONFIG_BLK_DEV_IDEACPI #include <acpi/acpi.h> #endif @@ -47,12 +48,6 @@ typedef unsigned char byte; /* used everywhere */ #define ERROR_RESET 3 /* Reset controller every 4th retry */ #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ -/* - * state flags - */ - -#define DMA_PIO_RETRY 1 /* retrying in PIO */ - #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) @@ -87,12 +82,13 @@ struct ide_io_ports { }; #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) -#define BAD_R_STAT (BUSY_STAT | ERR_STAT) -#define BAD_W_STAT (BAD_R_STAT | WRERR_STAT) -#define BAD_STAT (BAD_R_STAT | DRQ_STAT) -#define DRIVE_READY (READY_STAT | SEEK_STAT) -#define BAD_CRC (ABRT_ERR | ICRC_ERR) +#define BAD_R_STAT (ATA_BUSY | ATA_ERR) +#define BAD_W_STAT (BAD_R_STAT | ATA_DF) +#define BAD_STAT (BAD_R_STAT | ATA_DRQ) +#define DRIVE_READY (ATA_DRDY | ATA_DSC) + +#define BAD_CRC (ATA_ABORTED | ATA_ICRC) #define SATA_NR_PORTS (3) /* 16 possible ?? */ @@ -125,18 +121,43 @@ struct ide_io_ports { #define PARTN_BITS 6 /* number of minor dev bits for partitions */ #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ #define SECTOR_SIZE 512 -#define SECTOR_WORDS (SECTOR_SIZE / 4) /* number of 32bit words per sector */ + #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) /* * Timeouts for various operations: */ -#define WAIT_DRQ (HZ/10) /* 100msec - spec allows up to 20ms */ -#define WAIT_READY (5*HZ) /* 5sec - some laptops are very slow */ -#define WAIT_PIDENTIFY (10*HZ) /* 10sec - should be less than 3ms (?), if all ATAPI CD is closed at boot */ -#define WAIT_WORSTCASE (30*HZ) /* 30sec - worst case when spinning up */ -#define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */ -#define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */ +enum { + /* spec allows up to 20ms */ + WAIT_DRQ = HZ / 10, /* 100ms */ + /* some laptops are very slow */ + WAIT_READY = 5 * HZ, /* 5s */ + /* should be less than 3ms (?), if all ATAPI CD is closed at boot */ + WAIT_PIDENTIFY = 10 * HZ, /* 10s */ + /* worst case when spinning up */ + WAIT_WORSTCASE = 30 * HZ, /* 30s */ + /* maximum wait for an IRQ to happen */ + WAIT_CMD = 10 * HZ, /* 10s */ + /* Some drives require a longer IRQ timeout. */ + WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */ + /* + * Some drives (for example, Seagate STT3401A Travan) require a very + * long timeout, because they don't return an interrupt or clear their + * BSY bit until after the command completes (even retension commands). + */ + WAIT_TAPE_CMD = 900 * HZ, /* 900s */ + /* minimum sleep time */ + WAIT_MIN_SLEEP = HZ / 50, /* 20ms */ +}; + +/* + * 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 +#define REQ_DEVSET_EXEC 0x21 +#define REQ_PARK_HEADS 0x22 +#define REQ_UNPARK_HEADS 0x23 /* * Check for an interrupt and acknowledge the interrupt status @@ -171,7 +192,8 @@ 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; + unsigned long config; } hw_regs_t; void ide_init_port_data(struct hwif_s *, unsigned int); @@ -189,13 +211,31 @@ static inline void ide_std_init_ports(hw_regs_t *hw, hw->io_ports.ctl_addr = ctl_addr; } -#include <asm/ide.h> +/* for IDE PCI controllers in legacy mode, temporary */ +static inline int __ide_default_irq(unsigned long base) +{ + switch (base) { +#ifdef CONFIG_IA64 + case 0x1f0: return isa_irq_to_vector(14); + case 0x170: return isa_irq_to_vector(15); +#else + case 0x1f0: return 14; + case 0x170: return 15; +#endif + } + return 0; +} -#if !defined(MAX_HWIFS) || defined(CONFIG_EMBEDDED) -#undef MAX_HWIFS -#define MAX_HWIFS CONFIG_IDE_MAX_HWIFS +#if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \ + defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \ + || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64) +#include <asm/ide.h> +#else +#include <asm-generic/ide_iops.h> #endif +#define MAX_HWIFS 10 + /* Currently only m68k, apus and m8xx need it */ #ifndef IDE_ARCH_ACK_INTR # define ide_ack_intr(hwif) (1) @@ -224,8 +264,6 @@ static inline void ide_std_init_ports(hw_regs_t *hw, * set_geometry : respecify drive geometry * recalibrate : seek to cyl 0 * set_multmode : set multmode count - * set_tune : tune interface for drive - * serviced : service command * reserved : unused */ typedef union { @@ -234,43 +272,11 @@ typedef union { unsigned set_geometry : 1; unsigned recalibrate : 1; unsigned set_multmode : 1; - unsigned set_tune : 1; - unsigned serviced : 1; - unsigned reserved : 3; + unsigned reserved : 5; } b; } special_t; /* - * ATA-IDE Select Register, aka Device-Head - * - * head : always zeros here - * unit : drive select number: 0/1 - * bit5 : always 1 - * lba : using LBA instead of CHS - * bit7 : always 1 - */ -typedef union { - unsigned all : 8; - struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) - unsigned head : 4; - unsigned unit : 1; - unsigned bit5 : 1; - unsigned lba : 1; - unsigned bit7 : 1; -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned bit7 : 1; - unsigned lba : 1; - unsigned bit5 : 1; - unsigned unit : 1; - unsigned head : 4; -#else -#error "Please fix <asm/byteorder.h>" -#endif - } b; -} select_t, ata_select_t; - -/* * Status returned from various ide_ functions */ typedef enum { @@ -278,15 +284,304 @@ typedef enum { ide_started, /* a drive operation was started, handler was set */ } ide_startstop_t; +enum { + IDE_TFLAG_LBA48 = (1 << 0), + IDE_TFLAG_FLAGGED = (1 << 2), + IDE_TFLAG_OUT_DATA = (1 << 3), + IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), + IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), + IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), + IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), + IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), + IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | + IDE_TFLAG_OUT_HOB_NSECT | + IDE_TFLAG_OUT_HOB_LBAL | + IDE_TFLAG_OUT_HOB_LBAM | + IDE_TFLAG_OUT_HOB_LBAH, + IDE_TFLAG_OUT_FEATURE = (1 << 9), + IDE_TFLAG_OUT_NSECT = (1 << 10), + IDE_TFLAG_OUT_LBAL = (1 << 11), + IDE_TFLAG_OUT_LBAM = (1 << 12), + IDE_TFLAG_OUT_LBAH = (1 << 13), + IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | + IDE_TFLAG_OUT_NSECT | + IDE_TFLAG_OUT_LBAL | + IDE_TFLAG_OUT_LBAM | + IDE_TFLAG_OUT_LBAH, + IDE_TFLAG_OUT_DEVICE = (1 << 14), + IDE_TFLAG_WRITE = (1 << 15), + IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), + IDE_TFLAG_IN_DATA = (1 << 17), + IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), + IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), + IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), + IDE_TFLAG_IN_HOB_NSECT = (1 << 21), + IDE_TFLAG_IN_HOB_LBAL = (1 << 22), + IDE_TFLAG_IN_HOB_LBAM = (1 << 23), + IDE_TFLAG_IN_HOB_LBAH = (1 << 24), + IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | + IDE_TFLAG_IN_HOB_LBAM | + IDE_TFLAG_IN_HOB_LBAH, + IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | + IDE_TFLAG_IN_HOB_NSECT | + IDE_TFLAG_IN_HOB_LBA, + IDE_TFLAG_IN_FEATURE = (1 << 1), + IDE_TFLAG_IN_NSECT = (1 << 25), + IDE_TFLAG_IN_LBAL = (1 << 26), + IDE_TFLAG_IN_LBAM = (1 << 27), + IDE_TFLAG_IN_LBAH = (1 << 28), + IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | + IDE_TFLAG_IN_LBAM | + IDE_TFLAG_IN_LBAH, + IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | + IDE_TFLAG_IN_LBA, + IDE_TFLAG_IN_DEVICE = (1 << 29), + IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | + IDE_TFLAG_IN_HOB, + IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | + IDE_TFLAG_IN_TF, + IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | + IDE_TFLAG_IN_DEVICE, + /* force 16-bit I/O operations */ + IDE_TFLAG_IO_16BIT = (1 << 30), + /* ide_task_t was allocated using kmalloc() */ + IDE_TFLAG_DYN = (1 << 31), +}; + +struct ide_taskfile { + u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ + + u8 hob_feature; /* 1-5: additional data to support LBA48 */ + u8 hob_nsect; + u8 hob_lbal; + u8 hob_lbam; + u8 hob_lbah; + + u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ + + union { /* 7: */ + u8 error; /* read: error */ + u8 feature; /* write: feature */ + }; + + u8 nsect; /* 8: number of sectors */ + u8 lbal; /* 9: LBA low */ + u8 lbam; /* 10: LBA mid */ + u8 lbah; /* 11: LBA high */ + + u8 device; /* 12: device select */ + + union { /* 13: */ + u8 status; /* read: status */ + u8 command; /* write: command */ + }; +}; + +typedef struct ide_task_s { + union { + struct ide_taskfile tf; + u8 tf_array[14]; + }; + u32 tf_flags; + int data_phase; + struct request *rq; /* copy of request */ + void *special; /* valid_t generally */ +} ide_task_t; + +/* 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_IN_PROGRESS = (1 << 4), + PC_FLAG_DMA_ERROR = (1 << 5), + PC_FLAG_WRITING = (1 << 6), + /* command timed out */ + PC_FLAG_TIMEDOUT = (1 << 7), +}; + +/* + * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes. + * This is used for several packet commands (not for READ/WRITE commands). + */ +#define IDE_PC_BUFFER_SIZE 256 + +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[IDE_PC_BUFFER_SIZE]; + + /* 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; +}; + +struct ide_devset; struct ide_driver_s; -struct ide_settings_s; #ifdef CONFIG_BLK_DEV_IDEACPI struct ide_acpi_drive_link; struct ide_acpi_hwif_link; #endif -typedef struct ide_drive_s { +/* ATAPI device flags */ +enum { + IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), + IDE_AFLAG_MEDIA_CHANGED = (1 << 1), + /* Drive cannot lock the door. */ + IDE_AFLAG_NO_DOORLOCK = (1 << 2), + + /* ide-cd */ + /* Drive cannot eject the disc. */ + IDE_AFLAG_NO_EJECT = (1 << 3), + /* Drive is a pre ATAPI 1.2 drive. */ + IDE_AFLAG_PRE_ATAPI12 = (1 << 4), + /* TOC addresses are in BCD. */ + IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5), + /* TOC track numbers are in BCD. */ + IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6), + /* + * Drive does not provide data in multiples of SECTOR_SIZE + * when more than one interrupt is needed. + */ + IDE_AFLAG_LIMIT_NFRAMES = (1 << 7), + /* Seeking in progress. */ + IDE_AFLAG_SEEKING = (1 << 8), + /* Saved TOC information is current. */ + IDE_AFLAG_TOC_VALID = (1 << 9), + /* We think that the drive door is locked. */ + IDE_AFLAG_DOOR_LOCKED = (1 << 10), + /* SET_CD_SPEED command is unsupported. */ + IDE_AFLAG_NO_SPEED_SELECT = (1 << 11), + IDE_AFLAG_VERTOS_300_SSD = (1 << 12), + IDE_AFLAG_VERTOS_600_ESD = (1 << 13), + IDE_AFLAG_SANYO_3CD = (1 << 14), + IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15), + IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16), + IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), + + /* ide-floppy */ + /* Format in progress */ + IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), + /* Avoid commands not supported in Clik drive */ + IDE_AFLAG_CLIK_DRIVE = (1 << 19), + /* Requires BH algorithm for packets */ + IDE_AFLAG_ZIP_DRIVE = (1 << 20), + /* Write protect */ + IDE_AFLAG_WP = (1 << 21), + /* Supports format progress report */ + IDE_AFLAG_SRFP = (1 << 22), + + /* ide-tape */ + IDE_AFLAG_IGNORE_DSC = (1 << 23), + /* 0 When the tape position is unknown */ + IDE_AFLAG_ADDRESS_VALID = (1 << 24), + /* Device already opened */ + IDE_AFLAG_BUSY = (1 << 25), + /* Attempt to auto-detect the current user block size */ + IDE_AFLAG_DETECT_BS = (1 << 26), + /* Currently on a filemark */ + IDE_AFLAG_FILEMARK = (1 << 27), + /* 0 = no tape is loaded, so we don't rewind after ejecting */ + IDE_AFLAG_MEDIUM_PRESENT = (1 << 28), + + IDE_AFLAG_NO_AUTOCLOSE = (1 << 29), +}; + +/* device flags */ +enum { + /* restore settings after device reset */ + IDE_DFLAG_KEEP_SETTINGS = (1 << 0), + /* device is using DMA for read/write */ + IDE_DFLAG_USING_DMA = (1 << 1), + /* okay to unmask other IRQs */ + IDE_DFLAG_UNMASK = (1 << 2), + /* don't attempt flushes */ + IDE_DFLAG_NOFLUSH = (1 << 3), + /* DSC overlap */ + IDE_DFLAG_DSC_OVERLAP = (1 << 4), + /* give potential excess bandwidth */ + IDE_DFLAG_NICE1 = (1 << 5), + /* device is physically present */ + IDE_DFLAG_PRESENT = (1 << 6), + /* device ejected hint */ + IDE_DFLAG_DEAD = (1 << 7), + /* id read from device (synthetic if not set) */ + IDE_DFLAG_ID_READ = (1 << 8), + IDE_DFLAG_NOPROBE = (1 << 9), + /* need to do check_media_change() */ + IDE_DFLAG_REMOVABLE = (1 << 10), + /* needed for removable devices */ + IDE_DFLAG_ATTACH = (1 << 11), + IDE_DFLAG_FORCED_GEOM = (1 << 12), + /* disallow setting unmask bit */ + IDE_DFLAG_NO_UNMASK = (1 << 13), + /* disallow enabling 32-bit I/O */ + IDE_DFLAG_NO_IO_32BIT = (1 << 14), + /* for removable only: door lock/unlock works */ + IDE_DFLAG_DOORLOCKING = (1 << 15), + /* disallow DMA */ + IDE_DFLAG_NODMA = (1 << 16), + /* powermanagment told us not to do anything, so sleep nicely */ + IDE_DFLAG_BLOCKED = (1 << 17), + /* ide-scsi emulation */ + IDE_DFLAG_SCSI = (1 << 18), + /* sleeping & sleep field valid */ + IDE_DFLAG_SLEEPING = (1 << 19), + IDE_DFLAG_POST_RESET = (1 << 20), + IDE_DFLAG_UDMA33_WARNED = (1 << 21), + IDE_DFLAG_LBA48 = (1 << 22), + /* status of write cache */ + IDE_DFLAG_WCACHE = (1 << 23), + /* used for ignoring ATA_DF */ + IDE_DFLAG_NOWERR = (1 << 24), + /* retrying in PIO */ + IDE_DFLAG_DMA_PIO_RETRY = (1 << 25), + IDE_DFLAG_LBA = (1 << 26), + /* don't unload heads */ + IDE_DFLAG_NO_UNLOAD = (1 << 27), + /* heads unloaded, please don't reset port */ + IDE_DFLAG_PARKED = (1 << 28) +}; + +struct ide_drive_s { char name[4]; /* drive name, such as "hda" */ char driver_req[10]; /* requests specific driver */ @@ -295,74 +590,47 @@ typedef struct ide_drive_s { struct request *rq; /* current request */ struct ide_drive_s *next; /* circular list of hwgroup drives */ void *driver_data; /* extra driver data */ - struct hd_driveid *id; /* drive model identification info */ + u16 *id; /* identification info */ #ifdef CONFIG_IDE_PROC_FS struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ - struct ide_settings_s *settings;/* /proc/ide/ drive settings */ + const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ #endif struct hwif_s *hwif; /* actually (ide_hwif_t *) */ + unsigned long dev_flags; + unsigned long sleep; /* sleep until this time */ unsigned long service_start; /* time we started last request */ unsigned long service_time; /* service time of last request */ unsigned long timeout; /* max time to wait for irq */ special_t special; /* special action flags */ - select_t select; /* basic drive/head select reg value */ - u8 keep_settings; /* restore settings after drive reset */ - u8 using_dma; /* disk is using dma for read/write */ + u8 select; /* basic drive/head select reg value */ u8 retry_pio; /* retrying dma capable host in pio */ - u8 state; /* retry state */ u8 waiting_for_dma; /* dma currently in progress */ - u8 unmask; /* okay to unmask other irqs */ - u8 noflush; /* don't attempt flushes */ - u8 dsc_overlap; /* DSC overlap */ - u8 nice1; /* give potential excess bandwidth */ - - unsigned present : 1; /* drive is physically present */ - unsigned dead : 1; /* device ejected hint */ - unsigned id_read : 1; /* 1=id read from disk 0 = synthetic */ - 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 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 */ - unsigned atapi_overlap : 1; /* ATAPI overlap (not supported) */ - unsigned doorlocking : 1; /* for removable only: door lock/unlock works */ - unsigned nodma : 1; /* disallow DMA */ - unsigned remap_0_to_1 : 1; /* 0=noremap, 1=remap 0->1 (for EZDrive) */ - unsigned blocked : 1; /* 1=powermanagment told us not to do anything, so sleep nicely */ - unsigned vdma : 1; /* 1=doing PIO over DMA 0=doing normal DMA */ - unsigned scsi : 1; /* 0=default, 1=ide-scsi emulation */ - unsigned sleeping : 1; /* 1=sleeping & sleep field valid */ - unsigned post_reset : 1; - unsigned udma33_warned : 1; - - u8 addressing; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */ + u8 dma; /* atapi dma flag */ + u8 quirk_list; /* considered quirky, set for a specific host */ u8 init_speed; /* transfer rate set at boot */ u8 current_speed; /* current transfer rate set */ u8 desired_speed; /* desired transfer rate set */ u8 dn; /* now wide spread use */ - 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 */ - u8 tune_req; /* requested drive tuning setting */ u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ - u8 bad_wstat; /* used for ignoring WRERR_STAT */ - u8 nowerr; /* used for ignoring WRERR_STAT */ - u8 sect0; /* offset of first sector for DM6:DDO */ + u8 bad_wstat; /* used for ignoring ATA_DF */ u8 head; /* "real" number of heads */ u8 sect; /* "real" sectors per track */ u8 bios_head; /* BIOS/fdisk/LILO number of heads */ u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ + /* delay this long before sending packet command */ + u8 pc_delay; + unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ unsigned int cyl; /* "real" number of cyls */ unsigned int drive_data; /* used by set_pio_mode/selectproc */ @@ -374,41 +642,93 @@ typedef struct ide_drive_s { int lun; /* logical unit */ int crc_count; /* crc counter to reduce drive speed */ + + unsigned long debug_mask; /* debugging levels switch */ + #ifdef CONFIG_BLK_DEV_IDEACPI struct ide_acpi_drive_link *acpidata; #endif struct list_head list; struct device gendev; 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) + /* current packet command */ + struct ide_atapi_pc *pc; + + /* callback for packet commands */ + void (*pc_callback)(struct ide_drive_s *, int); -#define IDE_CHIPSET_PCI_MASK \ - ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx)) -#define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1) + void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *); + int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *, + unsigned int, int); + + unsigned long atapi_flags; + + struct ide_atapi_pc request_sense_pc; + struct request request_sense_rq; +}; + +typedef struct ide_drive_s ide_drive_t; + +#define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) + +#define to_ide_drv(obj, cont_type) \ + container_of(obj, struct cont_type, kref) + +#define ide_drv_g(disk, cont_type) \ + container_of((disk)->private_data, struct cont_type, driver) struct ide_port_info; +struct ide_tp_ops { + void (*exec_command)(struct hwif_s *, u8); + u8 (*read_status)(struct hwif_s *); + u8 (*read_altstatus)(struct hwif_s *); + u8 (*read_sff_dma_status)(struct hwif_s *); + + void (*set_irq)(struct hwif_s *, int); + + void (*tf_load)(ide_drive_t *, struct ide_task_s *); + void (*tf_read)(ide_drive_t *, struct ide_task_s *); + + void (*input_data)(ide_drive_t *, struct request *, void *, + unsigned int); + void (*output_data)(ide_drive_t *, struct request *, void *, + unsigned int); +}; + +extern const struct ide_tp_ops default_tp_ops; + +/** + * struct ide_port_ops - IDE port operations + * + * @init_dev: host specific initialization of a device + * @set_pio_mode: routine to program host for PIO mode + * @set_dma_mode: routine to program host for DMA mode + * @selectproc: tweaks hardware to select drive + * @reset_poll: chipset polling based on hba specifics + * @pre_reset: chipset specific changes to default for device-hba resets + * @resetproc: routine to reset controller after a disk reset + * @maskproc: special host masking for drive selection + * @quirkproc: check host's drive quirk list + * @clear_irq: clear IRQ + * + * @mdma_filter: filter MDMA modes + * @udma_filter: filter UDMA modes + * + * @cable_detect: detect cable type + */ struct ide_port_ops { - /* host specific initialization of devices on a port */ - void (*port_init_devs)(struct hwif_s *); - /* routine to program host for PIO mode */ + void (*init_dev)(ide_drive_t *); void (*set_pio_mode)(ide_drive_t *, const u8); - /* routine to program host for DMA mode */ void (*set_dma_mode)(ide_drive_t *, const u8); - /* tweaks hardware to select drive */ void (*selectproc)(ide_drive_t *); - /* chipset polling based on hba specifics */ int (*reset_poll)(ide_drive_t *); - /* chipset specific changes to default for device-hba resets */ void (*pre_reset)(ide_drive_t *); - /* routine to reset controller after a disk reset */ void (*resetproc)(ide_drive_t *); - /* special host masking for drive selection */ void (*maskproc)(ide_drive_t *, int); - /* check host's drive quirk list */ void (*quirkproc)(ide_drive_t *); + void (*clear_irq)(ide_drive_t *); u8 (*mdma_filter)(ide_drive_t *); u8 (*udma_filter)(ide_drive_t *); @@ -427,7 +747,7 @@ struct ide_dma_ops { void (*dma_timeout)(struct ide_drive_s *); }; -struct ide_task_s; +struct ide_host; typedef struct hwif_s { struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ @@ -435,6 +755,8 @@ typedef struct hwif_s { struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ + struct ide_host *host; + char name[6]; /* name of interface, eg. "ide0" */ struct ide_io_ports io_ports; @@ -446,7 +768,6 @@ typedef struct hwif_s { u8 major; /* our major number */ u8 index; /* 0 for ide0; 1 for ide1; ... */ u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ - u8 bus_state; /* power state of the IDE bus */ u32 host_flags; @@ -466,26 +787,20 @@ typedef struct hwif_s { void (*rw_disk)(ide_drive_t *, struct request *); + const struct ide_tp_ops *tp_ops; const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; - void (*tf_load)(ide_drive_t *, struct ide_task_s *); - void (*tf_read)(ide_drive_t *, struct ide_task_s *); - - void (*input_data)(ide_drive_t *, struct request *, void *, unsigned); - void (*output_data)(ide_drive_t *, struct request *, void *, unsigned); - - 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); - - u8 (*INB)(unsigned long port); - /* dma physical region descriptor table (cpu view) */ unsigned int *dmatable_cpu; /* dma physical region descriptor table (dma view) */ dma_addr_t dmatable_dma; + + /* maximum number of PRD table entries */ + int prd_max_nents; + /* PRD entry size in bytes */ + int prd_ent_size; + /* Scatter-gather list used to build the above */ struct scatterlist *sg_table; int sg_max_nents; /* Maximum number of entries in it */ @@ -495,6 +810,8 @@ typedef struct hwif_s { /* data phase of the active command (currently only valid for PIO/DMA) */ int data_phase; + struct ide_task_s task; /* current command */ + unsigned int nsect; unsigned int nleft; struct scatterlist *cursg; @@ -504,8 +821,6 @@ typedef struct hwif_s { int irq; /* our irq number */ unsigned long dma_base; /* base addr for dma ports */ - unsigned long dma_command; /* dma command register */ - unsigned long dma_status; /* dma status register */ unsigned long config_data; /* for use by chipset-specific code */ unsigned long select_data; /* for use by chipset-specific code */ @@ -517,7 +832,6 @@ 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; @@ -526,13 +840,22 @@ typedef struct hwif_s { void *hwif_data; /* extra hwif data */ - unsigned dma; - #ifdef CONFIG_BLK_DEV_IDEACPI struct ide_acpi_hwif_link *acpidata; #endif } ____cacheline_internodealigned_in_smp ide_hwif_t; +#define MAX_HOST_PORTS 4 + +struct ide_host { + ide_hwif_t *ports[MAX_HOST_PORTS]; + unsigned int n_ports; + struct device *dev[2]; + unsigned int (*init_chipset)(struct pci_dev *); + unsigned long host_flags; + void *host_priv; +}; + /* * internal ide interrupt handler type */ @@ -552,8 +875,6 @@ 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; @@ -578,105 +899,116 @@ typedef struct ide_driver_s ide_driver_t; extern struct mutex ide_setting_mtx; -int set_io_32bit(ide_drive_t *, int); -int set_pio_mode(ide_drive_t *, int); -int set_using_dma(ide_drive_t *, int); +/* + * configurable drive settings + */ -/* 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), +#define DS_SYNC (1 << 0) + +struct ide_devset { + int (*get)(ide_drive_t *); + int (*set)(ide_drive_t *, int); + unsigned int flags; }; -struct ide_atapi_pc { - /* actual packet bytes */ - u8 c[12]; - /* incremented on each retry */ - int retries; - int error; +#define __DEVSET(_flags, _get, _set) { \ + .flags = _flags, \ + .get = _get, \ + .set = _set, \ +} - /* bytes to transfer */ - int req_xfer; - /* bytes actually transferred */ - int xferred; +#define ide_devset_get(name, field) \ +static int get_##name(ide_drive_t *drive) \ +{ \ + return drive->field; \ +} - /* data buffer */ - u8 *buf; - /* current buffer position */ - u8 *cur_pos; - int buf_size; - /* missing/available data on the current buffer */ - int b_count; +#define ide_devset_set(name, field) \ +static int set_##name(ide_drive_t *drive, int arg) \ +{ \ + drive->field = arg; \ + return 0; \ +} - /* the corresponding request */ - struct request *rq; +#define ide_devset_get_flag(name, flag) \ +static int get_##name(ide_drive_t *drive) \ +{ \ + return !!(drive->dev_flags & flag); \ +} - unsigned long flags; +#define ide_devset_set_flag(name, flag) \ +static int set_##name(ide_drive_t *drive, int arg) \ +{ \ + if (arg) \ + drive->dev_flags |= flag; \ + else \ + drive->dev_flags &= ~flag; \ + return 0; \ +} - /* - * 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 *); +#define __IDE_DEVSET(_name, _flags, _get, _set) \ +const struct ide_devset ide_devset_##_name = \ + __DEVSET(_flags, _get, _set) - /* idetape only */ - struct idetape_bh *bh; - char *b_data; +#define IDE_DEVSET(_name, _flags, _get, _set) \ +static __IDE_DEVSET(_name, _flags, _get, _set) - /* idescsi only for now */ - struct scatterlist *sg; - unsigned int sg_cnt; +#define ide_devset_rw(_name, _func) \ +IDE_DEVSET(_name, 0, get_##_func, set_##_func) - struct scsi_cmnd *scsi_cmd; - void (*done) (struct scsi_cmnd *); +#define ide_devset_w(_name, _func) \ +IDE_DEVSET(_name, 0, NULL, set_##_func) - unsigned long timeout; -}; +#define ide_ext_devset_rw(_name, _func) \ +__IDE_DEVSET(_name, 0, get_##_func, set_##_func) + +#define ide_ext_devset_rw_sync(_name, _func) \ +__IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func) + +#define ide_decl_devset(_name) \ +extern const struct ide_devset ide_devset_##_name + +ide_decl_devset(io_32bit); +ide_decl_devset(keepsettings); +ide_decl_devset(pio_mode); +ide_decl_devset(unmaskirq); +ide_decl_devset(using_dma); #ifdef CONFIG_IDE_PROC_FS /* - * configurable drive settings + * /proc/ide interface */ -#define TYPE_INT 0 -#define TYPE_BYTE 1 -#define TYPE_SHORT 2 +#define ide_devset_rw_field(_name, _field) \ +ide_devset_get(_name, _field); \ +ide_devset_set(_name, _field); \ +IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) + +#define ide_devset_rw_flag(_name, _field) \ +ide_devset_get_flag(_name, _field); \ +ide_devset_set_flag(_name, _field); \ +IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) + +struct ide_proc_devset { + const char *name; + const struct ide_devset *setting; + int min, max; + int (*mulf)(ide_drive_t *); + int (*divf)(ide_drive_t *); +}; -#define SETTING_READ (1 << 0) -#define SETTING_WRITE (1 << 1) -#define SETTING_RW (SETTING_READ | SETTING_WRITE) +#define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ + .name = __stringify(_name), \ + .setting = &ide_devset_##_name, \ + .min = _min, \ + .max = _max, \ + .mulf = _mulf, \ + .divf = _divf, \ +} -typedef int (ide_procset_t)(ide_drive_t *, int); -typedef struct ide_settings_s { - char *name; - int rw; - int data_type; - int min; - int max; - int mul_factor; - int div_factor; - void *data; - ide_procset_t *set; - int auto_remove; - struct ide_settings_s *next; -} ide_settings_t; - -int ide_add_setting(ide_drive_t *, const char *, int, int, int, int, int, int, void *, ide_procset_t *set); +#define IDE_PROC_DEVSET(_name, _min, _max) \ +__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) -/* - * /proc/ide interface - */ typedef struct { const char *name; mode_t mode; @@ -693,8 +1025,6 @@ 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 *); -void ide_add_generic_settings(ide_drive_t *); - read_proc_t proc_ide_read_capacity; read_proc_t proc_ide_read_geometry; @@ -722,41 +1052,58 @@ 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) { ; } -static inline void ide_add_generic_settings(ide_drive_t *drive) { ; } #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; #endif +enum { + /* enter/exit functions */ + IDE_DBG_FUNC = (1 << 0), + /* sense key/asc handling */ + IDE_DBG_SENSE = (1 << 1), + /* packet commands handling */ + IDE_DBG_PC = (1 << 2), + /* request handling */ + IDE_DBG_RQ = (1 << 3), + /* driver probing/setup */ + IDE_DBG_PROBE = (1 << 4), +}; + +/* DRV_NAME has to be defined in the driver before using the macro below */ +#define __ide_debug_log(lvl, fmt, args...) \ +{ \ + if (unlikely(drive->debug_mask & lvl)) \ + printk(KERN_INFO DRV_NAME ": " fmt, ## args); \ +} + /* - * Power Management step value (rq->pm->pm_step). + * Power Management state machine (rq->pm->pm_step). * - * The step value starts at 0 (ide_pm_state_start_suspend) for a - * suspend operation or 1000 (ide_pm_state_start_resume) for a - * resume operation. - * - * For each step, the core calls the subdriver start_power_step() first. + * For each step, the core calls ide_start_power_step() first. * This can return: * - ide_stopped : In this case, the core calls us back again unless * step have been set to ide_power_state_completed. * - ide_started : In this case, the channel is left busy until an * async event (interrupt) occurs. - * Typically, start_power_step() will issue a taskfile request with + * Typically, ide_start_power_step() will issue a taskfile request with * do_rw_taskfile(). * - * Upon reception of the interrupt, the core will call complete_power_step() + * Upon reception of the interrupt, the core will call ide_complete_power_step() * with the error code if any. This routine should update the step value * and return. It should not start a new request. The core will call - * start_power_step for the new step value, unless step have been set to - * ide_power_state_completed. - * - * Subdrivers are expected to define their own additional power - * steps from 1..999 for suspend and from 1001..1999 for resume, - * other values are reserved for future use. + * ide_start_power_step() for the new step value, unless step have been + * set to IDE_PM_COMPLETED. */ - enum { - ide_pm_state_completed = -1, - ide_pm_state_start_suspend = 0, - ide_pm_state_start_resume = 1000, + IDE_PM_START_SUSPEND, + IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND, + IDE_PM_STANDBY, + + IDE_PM_START_RESUME, + IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME, + IDE_PM_IDLE, + IDE_PM_RESTORE_DMA, + + IDE_PM_COMPLETED, }; /* @@ -767,51 +1114,39 @@ enum { */ struct ide_driver_s { const char *version; - u8 media; - unsigned supports_dsc_overlap : 1; 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 *); void (*resume)(ide_drive_t *); void (*shutdown)(ide_drive_t *); #ifdef CONFIG_IDE_PROC_FS - ide_proc_entry_t *proc; + ide_proc_entry_t *proc; + const struct ide_proc_devset *settings; #endif }; #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); +int ide_device_get(ide_drive_t *); +void ide_device_put(ide_drive_t *); -/* - * 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; +struct ide_ioctl_devset { + unsigned int get_ioctl; + unsigned int set_ioctl; + const struct ide_devset *setting; +}; -extern int ide_vlb_clk; -extern int ide_pci_clk; +int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, + unsigned long, const struct ide_ioctl_devset *); -ide_hwif_t *ide_find_port_slot(const struct ide_port_info *); +int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, + unsigned, unsigned long); -static inline ide_hwif_t *ide_find_port(void) -{ - return ide_find_port_slot(NULL); -} +extern int ide_vlb_clk; +extern int ide_pci_clk; extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, @@ -830,145 +1165,90 @@ 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 *); +void ide_fix_driveid(u16 *); extern void ide_fixstring(u8 *, const int, const int); +int ide_busy_sleep(ide_hwif_t *, unsigned long, int); + 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); +extern int ide_devset_execute(ide_drive_t *drive, + const struct ide_devset *setting, int arg); -/* - * "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), - IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), - IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), - IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), - IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), - IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | - IDE_TFLAG_OUT_HOB_NSECT | - IDE_TFLAG_OUT_HOB_LBAL | - IDE_TFLAG_OUT_HOB_LBAM | - IDE_TFLAG_OUT_HOB_LBAH, - IDE_TFLAG_OUT_FEATURE = (1 << 9), - IDE_TFLAG_OUT_NSECT = (1 << 10), - IDE_TFLAG_OUT_LBAL = (1 << 11), - IDE_TFLAG_OUT_LBAM = (1 << 12), - IDE_TFLAG_OUT_LBAH = (1 << 13), - IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | - IDE_TFLAG_OUT_NSECT | - IDE_TFLAG_OUT_LBAL | - IDE_TFLAG_OUT_LBAM | - IDE_TFLAG_OUT_LBAH, - IDE_TFLAG_OUT_DEVICE = (1 << 14), - IDE_TFLAG_WRITE = (1 << 15), - IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), - IDE_TFLAG_IN_DATA = (1 << 17), - IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), - IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), - IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), - IDE_TFLAG_IN_HOB_NSECT = (1 << 21), - IDE_TFLAG_IN_HOB_LBAL = (1 << 22), - IDE_TFLAG_IN_HOB_LBAM = (1 << 23), - IDE_TFLAG_IN_HOB_LBAH = (1 << 24), - IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | - IDE_TFLAG_IN_HOB_LBAM | - IDE_TFLAG_IN_HOB_LBAH, - IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | - IDE_TFLAG_IN_HOB_NSECT | - IDE_TFLAG_IN_HOB_LBA, - IDE_TFLAG_IN_NSECT = (1 << 25), - IDE_TFLAG_IN_LBAL = (1 << 26), - IDE_TFLAG_IN_LBAM = (1 << 27), - IDE_TFLAG_IN_LBAH = (1 << 28), - IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | - IDE_TFLAG_IN_LBAM | - IDE_TFLAG_IN_LBAH, - IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | - IDE_TFLAG_IN_LBA, - IDE_TFLAG_IN_DEVICE = (1 << 29), - IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | - IDE_TFLAG_IN_HOB, - IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | - IDE_TFLAG_IN_TF, - IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | - IDE_TFLAG_IN_DEVICE, - /* force 16-bit I/O operations */ - IDE_TFLAG_IO_16BIT = (1 << 30), - /* ide_task_t was allocated using kmalloc() */ - IDE_TFLAG_DYN = (1 << 31), -}; +void ide_tf_dump(const char *, struct ide_taskfile *); -struct ide_taskfile { - u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ +void ide_exec_command(ide_hwif_t *, u8); +u8 ide_read_status(ide_hwif_t *); +u8 ide_read_altstatus(ide_hwif_t *); +u8 ide_read_sff_dma_status(ide_hwif_t *); - u8 hob_feature; /* 1-5: additional data to support LBA48 */ - u8 hob_nsect; - u8 hob_lbal; - u8 hob_lbam; - u8 hob_lbah; +void ide_set_irq(ide_hwif_t *, int); - u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ +void ide_tf_load(ide_drive_t *, ide_task_t *); +void ide_tf_read(ide_drive_t *, ide_task_t *); - union { /* 7: */ - u8 error; /* read: error */ - u8 feature; /* write: feature */ - }; +void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); +void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); - u8 nsect; /* 8: number of sectors */ - u8 lbal; /* 9: LBA low */ - u8 lbam; /* 10: LBA mid */ - u8 lbah; /* 11: LBA high */ +int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int); - u8 device; /* 12: device select */ +extern void SELECT_DRIVE(ide_drive_t *); +void SELECT_MASK(ide_drive_t *, int); - union { /* 13: */ - u8 status; /* read: status */ - u8 command; /* write: command */ - }; +u8 ide_read_error(ide_drive_t *); +void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); + +extern int drive_is_ready(ide_drive_t *); + +void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); + +int ide_check_atapi_device(ide_drive_t *, const char *); + +void ide_init_pc(struct ide_atapi_pc *); + +/* Disk head parking */ +extern wait_queue_head_t ide_park_wq; +ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, + char *buf); +ssize_t ide_park_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t len); + +/* + * Special requests for ide-tape block device strategy routine. + * + * In order to service a character device command, we add special requests to + * the tail of our block device request queue and wait for their completion. + */ +enum { + REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ + REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ + REQ_IDETAPE_READ = (1 << 2), + REQ_IDETAPE_WRITE = (1 << 3), }; -typedef struct ide_task_s { - union { - struct ide_taskfile tf; - u8 tf_array[14]; - }; - u32 tf_flags; - int data_phase; - struct request *rq; /* copy of request */ - void *special; /* valid_t generally */ -} ide_task_t; +int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *); -void ide_tf_dump(const char *, struct ide_taskfile *); +int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *); +int ide_do_start_stop(ide_drive_t *, struct gendisk *, int); +int ide_set_media_lock(ide_drive_t *, struct gendisk *, int); +void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *); +void ide_retry_pc(ide_drive_t *, struct gendisk *); -extern void SELECT_DRIVE(ide_drive_t *); +static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc) +{ + return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies); +} -extern int drive_is_ready(ide_drive_t *); +int ide_scsi_expiry(ide_drive_t *); -void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); +ide_startstop_t ide_issue_pc(ide_drive_t *, unsigned int, ide_expiry_t *); ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); @@ -978,10 +1258,6 @@ int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); 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); @@ -992,7 +1268,6 @@ extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); -extern int ide_spin_wait_hwgroup(ide_drive_t *); extern void ide_timer_expiry(unsigned long); extern irqreturn_t ide_intr(int irq, void *dev_id); extern void do_ide_request(struct request_queue *); @@ -1006,12 +1281,14 @@ extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *o #define ide_pci_register_driver(d) pci_register_driver(d) #endif -void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *); +void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, + hw_regs_t *, hw_regs_t **); void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); #ifdef CONFIG_BLK_DEV_IDEDMA_PCI int ide_pci_set_master(struct pci_dev *, const char *); unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); +int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); #else static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, @@ -1021,10 +1298,6 @@ static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, } #endif -extern void default_hwif_iops(ide_hwif_t *); -extern void default_hwif_mmiops(ide_hwif_t *); -extern void default_hwif_transport(ide_hwif_t *); - typedef struct ide_pci_enablebit_s { u8 reg; /* byte pci reg holding the enable-bit */ u8 mask; /* mask to isolate the enable-bit */ @@ -1087,7 +1360,6 @@ enum { IDE_HFLAG_IO_32BIT = (1 << 24), /* unmask IRQs */ IDE_HFLAG_UNMASK_IRQS = (1 << 25), - IDE_HFLAG_ABUSE_SET_DMA_MODE = (1 << 26), /* serialize ports if DMA is possible (for sl82c105) */ IDE_HFLAG_SERIALIZE_DMA = (1 << 27), /* force host out of "simplex" mode */ @@ -1098,8 +1370,6 @@ enum { IDE_HFLAG_NO_IO_32BIT = (1 << 30), /* never unmask IRQs */ IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), - /* host uses VDMA (disabled for now) */ - IDE_HFLAG_VDMA = 0, }; #ifdef CONFIG_BLK_DEV_OFFBOARD @@ -1110,12 +1380,13 @@ enum { struct ide_port_info { char *name; - unsigned int (*init_chipset)(struct pci_dev *, const char *); + unsigned int (*init_chipset)(struct pci_dev *); void (*init_iops)(ide_hwif_t *); void (*init_hwif)(ide_hwif_t *); int (*init_dma)(ide_hwif_t *, const struct ide_port_info *); + const struct ide_tp_ops *tp_ops; const struct ide_port_ops *port_ops; const struct ide_dma_ops *dma_ops; @@ -1128,8 +1399,18 @@ struct ide_port_info { u8 udma_mask; }; -int ide_setup_pci_device(struct pci_dev *, const struct ide_port_info *); -int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, const struct ide_port_info *); +int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); +int ide_pci_init_two(struct pci_dev *, struct pci_dev *, + const struct ide_port_info *, void *); +void ide_pci_remove(struct pci_dev *); + +#ifdef CONFIG_PM +int ide_pci_suspend(struct pci_dev *, pm_message_t); +int ide_pci_resume(struct pci_dev *); +#else +#define ide_pci_suspend NULL +#define ide_pci_resume NULL +#endif void ide_map_sg(ide_drive_t *, struct request *); void ide_init_sg_cmd(ide_drive_t *, struct request *); @@ -1142,9 +1423,10 @@ struct drive_list_entry { const char *id_firmware; }; -int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *); +int ide_in_drive_list(u16 *, const struct drive_list_entry *); #ifdef CONFIG_BLK_DEV_IDEDMA +int ide_dma_good_drive(ide_drive_t *); int __ide_dma_bad_drive(ide_drive_t *); int ide_id_dma_bug(ide_drive_t *); @@ -1162,25 +1444,29 @@ int ide_set_dma(ide_drive_t *); void ide_check_dma_crc(ide_drive_t *); ide_startstop_t ide_dma_intr(ide_drive_t *); +int ide_allocate_dma_engine(ide_hwif_t *); +void ide_release_dma_engine(ide_hwif_t *); + int ide_build_sglist(ide_drive_t *, struct request *); void ide_destroy_dmatable(ide_drive_t *); #ifdef CONFIG_BLK_DEV_IDEDMA_SFF +int config_drive_for_dma(ide_drive_t *); extern int ide_build_dmatable(ide_drive_t *, struct request *); -int ide_allocate_dma_engine(ide_hwif_t *); -void ide_release_dma_engine(ide_hwif_t *); -void ide_setup_dma(ide_hwif_t *, unsigned long); - void ide_dma_host_set(ide_drive_t *, int); extern int ide_dma_setup(ide_drive_t *); void ide_dma_exec_cmd(ide_drive_t *, u8); extern void ide_dma_start(ide_drive_t *); -extern int __ide_dma_end(ide_drive_t *); +int ide_dma_end(ide_drive_t *); int ide_dma_test_irq(ide_drive_t *); -extern void ide_dma_lost_irq(ide_drive_t *); -extern void ide_dma_timeout(ide_drive_t *); +extern const struct ide_dma_ops sff_dma_ops; +#else +static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; } #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ +void ide_dma_lost_irq(ide_drive_t *); +void ide_dma_timeout(ide_drive_t *); + #else static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } @@ -1191,11 +1477,8 @@ static inline void ide_dma_on(ide_drive_t *drive) { ; } static inline void ide_dma_verbose(ide_drive_t *drive) { ; } static inline int ide_set_dma(ide_drive_t *drive) { return 1; } static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } -#endif /* CONFIG_BLK_DEV_IDEDMA */ - -#ifndef CONFIG_BLK_DEV_IDEDMA_SFF static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } -#endif +#endif /* CONFIG_BLK_DEV_IDEDMA */ #ifdef CONFIG_BLK_DEV_IDEACPI extern int ide_acpi_exec_tfs(ide_drive_t *drive); @@ -1223,8 +1506,13 @@ void ide_undecoded_slave(ide_drive_t *); void ide_port_apply_params(ide_hwif_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 *); +struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); +void ide_host_free(struct ide_host *); +int ide_host_register(struct ide_host *, const struct ide_port_info *, + hw_regs_t **); +int ide_host_add(const struct ide_port_info *, hw_regs_t **, + struct ide_host **); +void ide_host_remove(struct ide_host *); int ide_legacy_device_add(const struct ide_port_info *, unsigned long); void ide_port_unregister_devices(ide_hwif_t *); void ide_port_scan(ide_hwif_t *); @@ -1243,37 +1531,46 @@ const char *ide_xfer_verbose(u8 mode); extern void ide_toggle_bounce(ide_drive_t *drive, int on); extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); -static inline int ide_dev_has_iordy(struct hd_driveid *id) -{ - return ((id->field_valid & 2) && (id->capability & 8)) ? 1 : 0; -} - -static inline int ide_dev_is_sata(struct hd_driveid *id) -{ - /* - * See if word 93 is 0 AND drive is at least ATA-5 compatible - * verifying that word 80 by casting it to a signed type -- - * this trick allows us to filter out the reserved values of - * 0x0000 and 0xffff along with the earlier ATA revisions... - */ - if (id->hw_config == 0 && (short)id->major_rev_num >= 0x0020) - return 1; - return 0; -} - 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); @@ -1305,13 +1602,6 @@ extern struct mutex ide_cfg_mtx; 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) - -/* some Maxtor disks have bit 13 defined incorrectly so check bit 10 too */ -#define ide_id_has_flush_cache_ext(id) \ - (((id)->cfs_enable_2 & 0x2400) == 0x2400) - static inline void ide_dump_identify(u8 *id) { print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); @@ -1319,42 +1609,13 @@ static inline void ide_dump_identify(u8 *id) static inline int hwif_to_node(ide_hwif_t *hwif) { - struct pci_dev *dev = to_pci_dev(hwif->dev); - return hwif->dev ? pcibus_to_node(dev->bus) : -1; -} - -static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - - return &hwif->drives[(drive->dn ^ 1) & 1]; -} - -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); -} - -static inline u8 ide_read_status(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - return hwif->INB(hwif->io_ports.status_addr); -} - -static inline u8 ide_read_altstatus(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - return hwif->INB(hwif->io_ports.ctl_addr); + return hwif->dev ? dev_to_node(hwif->dev) : -1; } -static inline u8 ide_read_error(ide_drive_t *drive) +static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; + ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; - return hwif->INB(hwif->io_ports.error_addr); + return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; } #endif /* _IDE_H */ |