X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fide.h;h=a638dde17e77108d631f5bae40252b6f38e8516d;hb=e5f9f5a89a01abc2b9c09747452aeb9218d6bffd;hp=19db0a4ae447dda881fb396cc45a179893a6f89e;hpb=2843483d2eb02ad104edbe8b2429fb6a39d25063;p=linux-2.6 diff --git a/include/linux/ide.h b/include/linux/ide.h index 19db0a4ae4..a638dde17e 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -27,25 +27,10 @@ #include #include -/****************************************************************************** - * IDE driver configuration options (play with these as desired): - * - * REALLY_SLOW_IO can be defined in ide.c and ide-cd.c, if necessary - */ -#define INITIAL_MULT_COUNT 0 /* off=0; on=2,4,8,16,32, etc.. */ - -#ifndef SUPPORT_SLOW_DATA_PORTS /* 1 to support slow data ports */ -#define SUPPORT_SLOW_DATA_PORTS 1 /* 0 to reduce kernel size */ -#endif -#ifndef SUPPORT_VLB_SYNC /* 1 to support weird 32-bit chips */ -#define SUPPORT_VLB_SYNC 1 /* 0 to reduce kernel size */ -#endif -#ifndef OK_TO_RESET_CONTROLLER /* 1 needed for good error recovery */ -#define OK_TO_RESET_CONTROLLER 1 /* 0 for use with AH2372A/B interface */ -#endif - -#ifndef DISABLE_IRQ_NOSYNC -#define DISABLE_IRQ_NOSYNC 0 +#if defined(CRIS) || defined(FRV) +# define SUPPORT_VLB_SYNC 0 +#else +# define SUPPORT_VLB_SYNC 1 #endif /* @@ -55,10 +40,6 @@ #define IDE_NO_IRQ (-1) -/* - * "No user-serviceable parts" beyond this point :) - *****************************************************************************/ - typedef unsigned char byte; /* used everywhere */ /* @@ -103,8 +84,6 @@ typedef unsigned char byte; /* used everywhere */ #define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET #define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET -#define IDE_CONTROL_OFFSET_HOB (7) - #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]) @@ -192,22 +171,20 @@ typedef unsigned char byte; /* used everywhere */ struct hwif_s; typedef int (ide_ack_intr_t)(struct hwif_s *); -#ifndef NO_DMA -#define NO_DMA 255 -#endif - /* * hwif_chipset_t is used to keep track of the specific hardware * chipset used by each IDE interface, if known. */ -typedef enum { ide_unknown, ide_generic, ide_pci, +enum { ide_unknown, ide_generic, ide_pci, ide_cmd640, ide_dtc2278, ide_ali14xx, ide_qd65xx, ide_umc8672, ide_ht6560b, ide_rz1000, ide_trm290, ide_cmd646, ide_cy82c693, ide_4drives, ide_pmac, ide_etrax100, ide_acorn, ide_au1xxx, ide_forced -} hwif_chipset_t; +}; + +typedef u8 hwif_chipset_t; /* * Structure to hold all information about the location of this port @@ -215,22 +192,16 @@ typedef enum { ide_unknown, ide_generic, ide_pci, typedef struct hw_regs_s { unsigned long io_ports[IDE_NR_PORTS]; /* task file registers */ int irq; /* our irq number */ - int dma; /* our dma entry */ ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ hwif_chipset_t chipset; struct device *dev; } hw_regs_t; -/* - * Register new hardware with ide - */ -int ide_register_hw(hw_regs_t *, int, struct hwif_s **); -int ide_register_hw_with_fixup(hw_regs_t *, int, struct hwif_s **, - void (*)(struct hwif_s *)); +struct hwif_s * ide_find_port(unsigned long); + +int ide_register_hw(hw_regs_t *, void (*)(struct hwif_s *), int, + struct hwif_s **); -/* - * Set up hw_regs_t structure before calling ide_register_hw (optional) - */ void ide_setup_ports( hw_regs_t *hw, unsigned long base, int *offsets, @@ -268,11 +239,7 @@ static inline void ide_std_init_ports(hw_regs_t *hw, # define ide_init_default_irq(base) (0) #endif -/* - * ide_init_hwif_ports() is OBSOLETE and will be removed in 2.7 series. - * New ports shouldn't define IDE_ARCH_OBSOLETE_INIT in . - */ -#ifdef IDE_ARCH_OBSOLETE_INIT +#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, @@ -302,7 +269,7 @@ static inline void ide_init_hwif_ports(hw_regs_t *hw, if (io_addr || ctl_addr) printk(KERN_WARNING "%s: must not be called\n", __FUNCTION__); } -#endif /* IDE_ARCH_OBSOLETE_INIT */ +#endif /* CONFIG_IDE_ARCH_OBSOLETE_INIT */ /* Currently only m68k, apus and m8xx need it */ #ifndef IDE_ARCH_ACK_INTR @@ -339,23 +306,12 @@ static inline void ide_init_hwif_ports(hw_regs_t *hw, typedef union { unsigned all : 8; struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) unsigned set_geometry : 1; unsigned recalibrate : 1; unsigned set_multmode : 1; unsigned set_tune : 1; unsigned serviced : 1; unsigned reserved : 3; -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned reserved : 3; - unsigned serviced : 1; - unsigned set_tune : 1; - unsigned set_multmode : 1; - unsigned recalibrate : 1; - unsigned set_geometry : 1; -#else -#error "Please fix " -#endif } b; } special_t; @@ -363,7 +319,6 @@ typedef union { * ATA DATA Register Special. * ATA NSECTOR Count Register(). * ATAPI Byte Count Register. - * Channel index ordering pairs. */ typedef union { unsigned all :16; @@ -378,7 +333,7 @@ typedef union { #error "Please fix " #endif } b; -} ata_nsector_t, ata_data_t, atapi_bcount_t, ata_index_t; +} ata_nsector_t, ata_data_t, atapi_bcount_t; /* * ATA-IDE Select Register, aka Device-Head @@ -410,77 +365,6 @@ typedef union { } b; } select_t, ata_select_t; -/* - * The ATA-IDE Status Register. - * The ATAPI Status Register. - * - * check : Error occurred - * idx : Index Error - * corr : Correctable error occurred - * drq : Data is request by the device - * dsc : Disk Seek Complete : ata - * : Media access command finished : atapi - * df : Device Fault : ata - * : Reserved : atapi - * drdy : Ready, Command Mode Capable : ata - * : Ignored for ATAPI commands : atapi - * bsy : Disk is Busy - * : The device has access to the command block - */ -typedef union { - unsigned all :8; - struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) - unsigned check :1; - unsigned idx :1; - unsigned corr :1; - unsigned drq :1; - unsigned dsc :1; - unsigned df :1; - unsigned drdy :1; - unsigned bsy :1; -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned bsy :1; - unsigned drdy :1; - unsigned df :1; - unsigned dsc :1; - unsigned drq :1; - unsigned corr :1; - unsigned idx :1; - unsigned check :1; -#else -#error "Please fix " -#endif - } b; -} ata_status_t, atapi_status_t; - -/* - * ATAPI Feature Register - * - * dma : Using DMA or PIO - * reserved321 : Reserved - * reserved654 : Reserved (Tag Type) - * reserved7 : Reserved - */ -typedef union { - unsigned all :8; - struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) - unsigned dma :1; - unsigned reserved321 :3; - unsigned reserved654 :3; - unsigned reserved7 :1; -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned reserved7 :1; - unsigned reserved654 :3; - unsigned reserved321 :3; - unsigned dma :1; -#else -#error "Please fix " -#endif - } b; -} atapi_feature_t; - /* * ATAPI Interrupt Reason Register. * @@ -505,36 +389,6 @@ typedef union { } b; } atapi_ireason_t; -/* - * The ATAPI error register. - * - * ili : Illegal Length Indication - * eom : End Of Media Detected - * abrt : Aborted command - As defined by ATA - * mcr : Media Change Requested - As defined by ATA - * sense_key : Sense key of the last failed packet command - */ -typedef union { - unsigned all :8; - struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) - unsigned ili :1; - unsigned eom :1; - unsigned abrt :1; - unsigned mcr :1; - unsigned sense_key :4; -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned sense_key :4; - unsigned mcr :1; - unsigned abrt :1; - unsigned eom :1; - unsigned ili :1; -#else -#error "Please fix " -#endif - } b; -} atapi_error_t; - /* * Status returned from various ide_ functions */ @@ -657,7 +511,7 @@ typedef struct ide_drive_s { ((1<> (c)) & 1) -struct ide_pci_device_s; +struct ide_port_info; typedef struct hwif_s { struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ @@ -672,7 +526,6 @@ typedef struct hwif_s { unsigned long sata_scr[SATA_NR_PORTS]; unsigned long sata_misc[SATA_NR_PORTS]; - hw_regs_t hw; /* Hardware info */ ide_drive_t drives[MAX_DRIVES]; /* drive info */ u8 major; /* our major number */ @@ -681,7 +534,7 @@ typedef struct hwif_s { u8 straight8; /* Alan's straight 8 check */ u8 bus_state; /* power state of the IDE bus */ - u16 host_flags; + u32 host_flags; u8 pio_mask; @@ -694,7 +547,9 @@ typedef struct hwif_s { hwif_chipset_t chipset; /* sub-module for tuning.. */ struct pci_dev *pci_dev; /* for pci chipsets */ - struct ide_pci_device_s *cds; /* chipset device struct */ + const struct ide_port_info *cds; /* chipset device struct */ + + ide_ack_intr_t *ack_intr; void (*rw_disk)(ide_drive_t *, struct request *); @@ -725,6 +580,8 @@ typedef struct hwif_s { u8 (*mdma_filter)(ide_drive_t *); u8 (*udma_filter)(ide_drive_t *); + void (*fixup)(struct hwif_s *); + void (*ata_input_data)(ide_drive_t *, void *, u32); void (*ata_output_data)(ide_drive_t *, void *, u32); @@ -776,7 +633,6 @@ typedef struct hwif_s { int rqsize; /* max sectors per request */ int irq; /* our irq number */ - unsigned long dma_master; /* reference base addr dmabase */ unsigned long dma_base; /* base addr for dma ports */ unsigned long dma_command; /* dma command register */ unsigned long dma_vendor1; /* dma vendor 1 register */ @@ -841,8 +697,6 @@ typedef struct hwgroup_s { /* for pci chipsets */ struct pci_dev *pci_dev; - /* chipset device struct */ - struct ide_pci_device_s *cds; /* current request */ struct request *rq; @@ -1030,60 +884,27 @@ 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, int uptodate, int nr_sectors); -/* - * This is used on exit from the driver to designate the next irq handler - * and also to start the safety timer. - */ extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); -/* - * This is used on exit from the driver to designate the next irq handler - * and start the safety time safely and atomically from the IRQ handler - * with respect to the command issue (which it also does) - */ -extern void ide_execute_command(ide_drive_t *, task_ioreg_t cmd, ide_handler_t *, unsigned int, ide_expiry_t *); +void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int, + ide_expiry_t *); ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); -/* - * ide_error() takes action based on the error returned by the controller. - * The caller should return immediately after invoking this. - * - * (drive, msg, status) - */ ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); ide_startstop_t __ide_abort(ide_drive_t *, struct request *); -/* - * Abort a running command on the controller triggering the abort - * from a host side, non error situation - * (drive, msg) - */ extern ide_startstop_t ide_abort(ide_drive_t *, const char *); extern void ide_fix_driveid(struct hd_driveid *); -/* - * ide_fixstring() cleans up and (optionally) byte-swaps a text string, - * removing leading/trailing blanks and compressing internal blanks. - * It is primarily used to tidy up the model name/number fields as - * returned by the WIN_[P]IDENTIFY commands. - * - * (s, bytecount, byteswap) - */ + extern void ide_fixstring(u8 *, const int, const int); int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); -/* - * Start a reset operation for an IDE interface. - * The caller should return immediately after invoking this. - */ extern ide_startstop_t ide_do_reset (ide_drive_t *); -/* - * This function is intended to be used prior to invoking ide_do_drive_cmd(). - */ extern void ide_init_drive_cmd (struct request *rq); /* @@ -1098,13 +919,6 @@ typedef enum { extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t); -/* - * Clean up after success/failure of an explicit drive cmd. - * stat/err are used only when (HWGROUP(drive)->rq->cmd == IDE_DRIVE_CMD). - * stat/err are used only when (HWGROUP(drive)->rq->cmd == IDE_DRIVE_TASK_MASK). - * - * (ide_drive_t *drive, u8 stat, u8 err) - */ extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); /* @@ -1115,16 +929,69 @@ extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); */ extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, 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), +}; + +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 { -/* - * struct hd_drive_task_hdr tf; - * task_struct_t tf; - * struct hd_drive_hob_hdr hobf; - * hob_struct_t hobf; - */ - task_ioreg_t tfRegister[8]; - task_ioreg_t hobRegister[8]; - ide_reg_valid_t tf_out_flags; + union { + struct ide_taskfile tf; + u8 tf_array[14]; + }; + u16 tf_flags; ide_reg_valid_t tf_in_flags; int data_phase; int command_type; @@ -1134,6 +1001,8 @@ typedef struct ide_task_s { void *special; /* valid_t generally */ } ide_task_t; +void ide_tf_load(ide_drive_t *, ide_task_t *); + extern u32 ide_read_24(ide_drive_t *); extern void SELECT_DRIVE(ide_drive_t *); @@ -1162,6 +1031,8 @@ extern ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *); extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *); +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); @@ -1177,10 +1048,6 @@ extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); -/* - * ide_stall_queue() can be used by a drive to give excess bandwidth back - * to the hwgroup by sleeping for timeout jiffies. - */ extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); extern int ide_spin_wait_hwgroup(ide_drive_t *); @@ -1200,8 +1067,8 @@ 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 *, struct ide_pci_device_s *, int, ata_index_t *); -extern void ide_setup_pci_noise (struct pci_dev *dev, struct ide_pci_device_s *d); +void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *); +void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); extern void default_hwif_iops(ide_hwif_t *); extern void default_hwif_mmiops(ide_hwif_t *); @@ -1261,6 +1128,14 @@ enum { IDE_HFLAG_SERIALIZE = (1 << 20), /* use legacy IRQs */ IDE_HFLAG_LEGACY_IRQS = (1 << 21), + /* force use of legacy IRQs */ + IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), + /* limit LBA48 requests to 256 sectors */ + IDE_HFLAG_RQSIZE_256 = (1 << 23), + /* use 32-bit I/O ops */ + IDE_HFLAG_IO_32BIT = (1 << 24), + /* unmask IRQs */ + IDE_HFLAG_UNMASK_IRQS = (1 << 25), }; #ifdef CONFIG_BLK_DEV_OFFBOARD @@ -1269,7 +1144,7 @@ enum { # define IDE_HFLAG_OFF_BOARD 0 #endif -typedef struct ide_pci_device_s { +struct ide_port_info { char *name; unsigned int (*init_chipset)(struct pci_dev *, const char *); void (*init_iops)(ide_hwif_t *); @@ -1277,17 +1152,17 @@ typedef struct ide_pci_device_s { void (*init_dma)(ide_hwif_t *, unsigned long); void (*fixup)(ide_hwif_t *); ide_pci_enablebit_t enablebits[2]; + hwif_chipset_t chipset; unsigned int extra; - struct ide_pci_device_s *next; u32 host_flags; u8 pio_mask; u8 swdma_mask; u8 mwdma_mask; u8 udma_mask; -} ide_pci_device_t; +}; -extern int ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *); -extern int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, ide_pci_device_t *); +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 *); void ide_map_sg(ide_drive_t *, struct request *); void ide_init_sg_cmd(ide_drive_t *, struct request *); @@ -1304,6 +1179,7 @@ int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *); #ifdef CONFIG_BLK_DEV_IDEDMA int __ide_dma_bad_drive(ide_drive_t *); +int ide_id_dma_bug(ide_drive_t *); u8 ide_find_dma_mode(ide_drive_t *, u8); @@ -1313,7 +1189,6 @@ static inline u8 ide_max_dma_mode(ide_drive_t *drive) } void ide_dma_off(ide_drive_t *); -void ide_dma_verbose(ide_drive_t *); int ide_set_dma(ide_drive_t *); ide_startstop_t ide_dma_intr(ide_drive_t *); @@ -1336,6 +1211,7 @@ extern void ide_dma_timeout(ide_drive_t *); #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ #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; } static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } static inline void ide_dma_off(ide_drive_t *drive) { ; } @@ -1370,8 +1246,7 @@ void ide_unregister_region(struct gendisk *); void ide_undecoded_slave(ide_hwif_t *); -int probe_hwif_init_with_fixup(ide_hwif_t *, void (*)(ide_hwif_t *)); -extern int probe_hwif_init(ide_hwif_t *); +int ide_device_add(u8 idx[4]); static inline void *ide_get_hwifdata (ide_hwif_t * hwif) { @@ -1383,8 +1258,7 @@ static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) hwif->hwif_data = data; } -/* ide-lib.c */ -extern char *ide_xfer_verbose(u8 xfer_rate); +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);