diff options
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 322 |
1 files changed, 103 insertions, 219 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 9a6a41e7079f..1e4409937ec3 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -27,25 +27,10 @@ #include <asm/semaphore.h> #include <asm/mutex.h> -/****************************************************************************** - * 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]) @@ -327,47 +306,16 @@ 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 <asm/byteorder.h>" -#endif } b; } special_t; /* - * ATA DATA Register Special. - * ATA NSECTOR Count Register(). - * ATAPI Byte Count Register. - */ -typedef union { - unsigned all :16; - struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) - unsigned low :8; /* LSB */ - unsigned high :8; /* MSB */ -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned high :8; /* MSB */ - unsigned low :8; /* LSB */ -#else -#error "Please fix <asm/byteorder.h>" -#endif - } b; -} ata_nsector_t, ata_data_t, atapi_bcount_t; - -/* * ATA-IDE Select Register, aka Device-Head * * head : always zeros here @@ -398,131 +346,6 @@ typedef union { } 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 <asm/byteorder.h>" -#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 <asm/byteorder.h>" -#endif - } b; -} atapi_feature_t; - -/* - * ATAPI Interrupt Reason Register. - * - * cod : Information transferred is command (1) or data (0) - * io : The device requests us to read (1) or write (0) - * reserved : Reserved - */ -typedef union { - unsigned all :8; - struct { -#if defined(__LITTLE_ENDIAN_BITFIELD) - unsigned cod :1; - unsigned io :1; - unsigned reserved :6; -#elif defined(__BIG_ENDIAN_BITFIELD) - unsigned reserved :6; - unsigned io :1; - unsigned cod :1; -#else -#error "Please fix <asm/byteorder.h>" -#endif - } 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 <asm/byteorder.h>" -#endif - } b; -} atapi_error_t; - -/* * Status returned from various ide_ functions */ typedef enum { @@ -701,8 +524,6 @@ typedef struct hwif_s { void (*pre_reset)(ide_drive_t *); /* routine to reset controller after a disk reset */ void (*resetproc)(ide_drive_t *); - /* special interrupt handling for shared pci interrupts */ - void (*intrproc)(ide_drive_t *); /* special host masking for drive selection */ void (*maskproc)(ide_drive_t *, int); /* check host's drive quirk list */ @@ -766,7 +587,6 @@ 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 */ @@ -806,7 +626,6 @@ typedef struct hwif_s { /* * internal ide interrupt handler type */ -typedef ide_startstop_t (ide_pre_handler_t)(ide_drive_t *, struct request *); typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); typedef int (ide_expiry_t)(ide_drive_t *); @@ -1020,7 +839,8 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); -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); @@ -1062,52 +882,114 @@ 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), + 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), +}; + +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; - ide_reg_valid_t tf_in_flags; + union { + struct ide_taskfile tf; + u8 tf_array[14]; + }; + u32 tf_flags; int data_phase; - int command_type; - ide_pre_handler_t *prehandler; - ide_handler_t *handler; struct request *rq; /* copy of request */ void *special; /* valid_t generally */ } ide_task_t; -extern u32 ide_read_24(ide_drive_t *); +void ide_tf_load(ide_drive_t *, ide_task_t *); +void ide_tf_read(ide_drive_t *, ide_task_t *); extern void SELECT_DRIVE(ide_drive_t *); -extern void SELECT_INTERRUPT(ide_drive_t *); extern void SELECT_MASK(ide_drive_t *, int); -extern void QUIRK_LIST(ide_drive_t *); extern int drive_is_ready(ide_drive_t *); -/* - * taskfile io for disks for now...and builds request from ide_ioctl - */ -extern ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); - -/* - * Special Flagged Register Validation Caller - */ -extern ide_startstop_t flagged_taskfile(ide_drive_t *, ide_task_t *); +void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); -extern ide_startstop_t set_multmode_intr(ide_drive_t *); -extern ide_startstop_t set_geometry_intr(ide_drive_t *); -extern ide_startstop_t recal_intr(ide_drive_t *); -extern ide_startstop_t task_no_data_intr(ide_drive_t *); -extern ide_startstop_t task_in_intr(ide_drive_t *); -extern ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *); +ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); -extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *); +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); @@ -1212,6 +1094,7 @@ enum { IDE_HFLAG_IO_32BIT = (1 << 24), /* unmask IRQs */ IDE_HFLAG_UNMASK_IRQS = (1 << 25), + IDE_HFLAG_ABUSE_SET_DMA_MODE = (1 << 26), }; #ifdef CONFIG_BLK_DEV_OFFBOARD @@ -1229,7 +1112,7 @@ struct ide_port_info { void (*fixup)(ide_hwif_t *); ide_pci_enablebit_t enablebits[2]; hwif_chipset_t chipset; - unsigned int extra; + u8 extra; u32 host_flags; u8 pio_mask; u8 swdma_mask; @@ -1356,6 +1239,7 @@ static inline int ide_dev_is_sata(struct hd_driveid *id) 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 { |