| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _IDE_H |
| #define _IDE_H |
| /* |
| * linux/include/linux/ide.h |
| * |
| * Copyright (C) 1994-2002 Linus Torvalds & authors |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/ioport.h> |
| #include <linux/ata.h> |
| #include <linux/blk-mq.h> |
| #include <linux/proc_fs.h> |
| #include <linux/interrupt.h> |
| #include <linux/bitops.h> |
| #include <linux/bio.h> |
| #include <linux/pci.h> |
| #include <linux/completion.h> |
| #include <linux/pm.h> |
| #include <linux/mutex.h> |
| /* for request_sense */ |
| #include <linux/cdrom.h> |
| #include <scsi/scsi_cmnd.h> |
| #include <asm/byteorder.h> |
| #include <asm/io.h> |
| |
| /* |
| * Probably not wise to fiddle with these |
| */ |
| #define SUPPORT_VLB_SYNC 1 |
| #define IDE_DEFAULT_MAX_FAILURES 1 |
| #define ERROR_MAX 8 /* Max read/write errors per sector */ |
| #define ERROR_RESET 3 /* Reset controller every 4th retry */ |
| #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ |
| |
| struct device; |
| |
| /* values for ide_request.type */ |
| enum ata_priv_type { |
| ATA_PRIV_MISC, |
| ATA_PRIV_TASKFILE, |
| ATA_PRIV_PC, |
| ATA_PRIV_SENSE, /* sense request */ |
| ATA_PRIV_PM_SUSPEND, /* suspend request */ |
| ATA_PRIV_PM_RESUME, /* resume request */ |
| }; |
| |
| struct ide_request { |
| struct scsi_request sreq; |
| u8 sense[SCSI_SENSE_BUFFERSIZE]; |
| u8 type; |
| void *special; |
| }; |
| |
| static inline struct ide_request *ide_req(struct request *rq) |
| { |
| return blk_mq_rq_to_pdu(rq); |
| } |
| |
| static inline bool ata_misc_request(struct request *rq) |
| { |
| return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_MISC; |
| } |
| |
| static inline bool ata_taskfile_request(struct request *rq) |
| { |
| return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_TASKFILE; |
| } |
| |
| static inline bool ata_pc_request(struct request *rq) |
| { |
| return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PC; |
| } |
| |
| static inline bool ata_sense_request(struct request *rq) |
| { |
| return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_SENSE; |
| } |
| |
| static inline bool ata_pm_request(struct request *rq) |
| { |
| return blk_rq_is_private(rq) && |
| (ide_req(rq)->type == ATA_PRIV_PM_SUSPEND || |
| ide_req(rq)->type == ATA_PRIV_PM_RESUME); |
| } |
| |
| /* Error codes returned in result to the higher part of the driver. */ |
| enum { |
| IDE_DRV_ERROR_GENERAL = 101, |
| IDE_DRV_ERROR_FILEMARK = 102, |
| IDE_DRV_ERROR_EOD = 103, |
| }; |
| |
| /* |
| * Definitions for accessing IDE controller registers |
| */ |
| #define IDE_NR_PORTS (10) |
| |
| struct ide_io_ports { |
| unsigned long data_addr; |
| |
| union { |
| unsigned long error_addr; /* read: error */ |
| unsigned long feature_addr; /* write: feature */ |
| }; |
| |
| unsigned long nsect_addr; |
| unsigned long lbal_addr; |
| unsigned long lbam_addr; |
| unsigned long lbah_addr; |
| |
| unsigned long device_addr; |
| |
| union { |
| unsigned long status_addr; /* read: status */ |
| unsigned long command_addr; /* write: command */ |
| }; |
| |
| unsigned long ctl_addr; |
| |
| unsigned long irq_addr; |
| }; |
| |
| #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) |
| |
| #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 ?? */ |
| |
| #define SATA_STATUS_OFFSET (0) |
| #define SATA_ERROR_OFFSET (1) |
| #define SATA_CONTROL_OFFSET (2) |
| |
| /* |
| * Our Physical Region Descriptor (PRD) table should be large enough |
| * to handle the biggest I/O request we are likely to see. Since requests |
| * can have no more than 256 sectors, and since the typical blocksize is |
| * two or more sectors, we could get by with a limit of 128 entries here for |
| * the usual worst case. Most requests seem to include some contiguous blocks, |
| * further reducing the number of table entries required. |
| * |
| * The driver reverts to PIO mode for individual requests that exceed |
| * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling |
| * 100% of all crazy scenarios here is not necessary. |
| * |
| * As it turns out though, we must allocate a full 4KB page for this, |
| * so the two PRD tables (ide0 & ide1) will each get half of that, |
| * allowing each to have about 256 entries (8 bytes each) from this. |
| */ |
| #define PRD_BYTES 8 |
| #define PRD_ENTRIES 256 |
| |
| /* |
| * Some more useful definitions |
| */ |
| #define PARTN_BITS 6 /* number of minor dev bits for partitions */ |
| #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ |
| |
| /* |
| * Timeouts for various operations: |
| */ |
| enum { |
| /* spec allows up to 20ms, but CF cards and SSD drives need more */ |
| WAIT_DRQ = 1 * HZ, /* 1s */ |
| /* 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 |
| |
| /* |
| * hwif_chipset_t is used to keep track of the specific hardware |
| * chipset used by each IDE interface, if known. |
| */ |
| enum { ide_unknown, ide_generic, ide_pci, |
| ide_cmd640, ide_dtc2278, ide_ali14xx, |
| ide_qd65xx, ide_umc8672, ide_ht6560b, |
| ide_4drives, ide_pmac, ide_acorn, |
| ide_au1xxx, ide_palm3710 |
| }; |
| |
| typedef u8 hwif_chipset_t; |
| |
| /* |
| * Structure to hold all information about the location of this port |
| */ |
| struct ide_hw { |
| union { |
| struct ide_io_ports io_ports; |
| unsigned long io_ports_array[IDE_NR_PORTS]; |
| }; |
| |
| int irq; /* our irq number */ |
| struct device *dev, *parent; |
| unsigned long config; |
| }; |
| |
| static inline void ide_std_init_ports(struct ide_hw *hw, |
| unsigned long io_addr, |
| unsigned long ctl_addr) |
| { |
| unsigned int i; |
| |
| for (i = 0; i <= 7; i++) |
| hw->io_ports_array[i] = io_addr++; |
| |
| hw->io_ports.ctl_addr = ctl_addr; |
| } |
| |
| #define MAX_HWIFS 10 |
| |
| /* |
| * Now for the data we need to maintain per-drive: ide_drive_t |
| */ |
| |
| #define ide_scsi 0x21 |
| #define ide_disk 0x20 |
| #define ide_optical 0x7 |
| #define ide_cdrom 0x5 |
| #define ide_tape 0x1 |
| #define ide_floppy 0x0 |
| |
| /* |
| * Special Driver Flags |
| */ |
| enum { |
| IDE_SFLAG_SET_GEOMETRY = BIT(0), |
| IDE_SFLAG_RECALIBRATE = BIT(1), |
| IDE_SFLAG_SET_MULTMODE = BIT(2), |
| }; |
| |
| /* |
| * Status returned from various ide_ functions |
| */ |
| typedef enum { |
| ide_stopped, /* no drive operation was started */ |
| ide_started, /* a drive operation was started, handler was set */ |
| } ide_startstop_t; |
| |
| enum { |
| IDE_VALID_ERROR = BIT(1), |
| IDE_VALID_FEATURE = IDE_VALID_ERROR, |
| IDE_VALID_NSECT = BIT(2), |
| IDE_VALID_LBAL = BIT(3), |
| IDE_VALID_LBAM = BIT(4), |
| IDE_VALID_LBAH = BIT(5), |
| IDE_VALID_DEVICE = BIT(6), |
| IDE_VALID_LBA = IDE_VALID_LBAL | |
| IDE_VALID_LBAM | |
| IDE_VALID_LBAH, |
| IDE_VALID_OUT_TF = IDE_VALID_FEATURE | |
| IDE_VALID_NSECT | |
| IDE_VALID_LBA, |
| IDE_VALID_IN_TF = IDE_VALID_NSECT | |
| IDE_VALID_LBA, |
| IDE_VALID_OUT_HOB = IDE_VALID_OUT_TF, |
| IDE_VALID_IN_HOB = IDE_VALID_ERROR | |
| IDE_VALID_NSECT | |
| IDE_VALID_LBA, |
| }; |
| |
| enum { |
| IDE_TFLAG_LBA48 = BIT(0), |
| IDE_TFLAG_WRITE = BIT(1), |
| IDE_TFLAG_CUSTOM_HANDLER = BIT(2), |
| IDE_TFLAG_DMA_PIO_FALLBACK = BIT(3), |
| /* force 16-bit I/O operations */ |
| IDE_TFLAG_IO_16BIT = BIT(4), |
| /* struct ide_cmd was allocated using kmalloc() */ |
| IDE_TFLAG_DYN = BIT(5), |
| IDE_TFLAG_FS = BIT(6), |
| IDE_TFLAG_MULTI_PIO = BIT(7), |
| IDE_TFLAG_SET_XFER = BIT(8), |
| }; |
| |
| enum { |
| IDE_FTFLAG_FLAGGED = BIT(0), |
| IDE_FTFLAG_SET_IN_FLAGS = BIT(1), |
| IDE_FTFLAG_OUT_DATA = BIT(2), |
| IDE_FTFLAG_IN_DATA = BIT(3), |
| }; |
| |
| struct ide_taskfile { |
| u8 data; /* 0: data byte (for TASKFILE ioctl) */ |
| union { /* 1: */ |
| u8 error; /* read: error */ |
| u8 feature; /* write: feature */ |
| }; |
| u8 nsect; /* 2: number of sectors */ |
| u8 lbal; /* 3: LBA low */ |
| u8 lbam; /* 4: LBA mid */ |
| u8 lbah; /* 5: LBA high */ |
| u8 device; /* 6: device select */ |
| union { /* 7: */ |
| u8 status; /* read: status */ |
| u8 command; /* write: command */ |
| }; |
| }; |
| |
| struct ide_cmd { |
| struct ide_taskfile tf; |
| struct ide_taskfile hob; |
| struct { |
| struct { |
| u8 tf; |
| u8 hob; |
| } out, in; |
| } valid; |
| |
| u16 tf_flags; |
| u8 ftf_flags; /* for TASKFILE ioctl */ |
| int protocol; |
| |
| int sg_nents; /* number of sg entries */ |
| int orig_sg_nents; |
| int sg_dma_direction; /* DMA transfer direction */ |
| |
| unsigned int nbytes; |
| unsigned int nleft; |
| unsigned int last_xfer_len; |
| |
| struct scatterlist *cursg; |
| unsigned int cursg_ofs; |
| |
| struct request *rq; /* copy of request */ |
| }; |
| |
| /* ATAPI packet command flags */ |
| enum { |
| /* set when an error is considered normal - no retry (ide-tape) */ |
| PC_FLAG_ABORT = BIT(0), |
| PC_FLAG_SUPPRESS_ERROR = BIT(1), |
| PC_FLAG_WAIT_FOR_DSC = BIT(2), |
| PC_FLAG_DMA_OK = BIT(3), |
| PC_FLAG_DMA_IN_PROGRESS = BIT(4), |
| PC_FLAG_DMA_ERROR = BIT(5), |
| PC_FLAG_WRITING = BIT(6), |
| }; |
| |
| #define ATAPI_WAIT_PC (60 * HZ) |
| |
| struct ide_atapi_pc { |
| /* actual packet bytes */ |
| u8 c[12]; |
| /* incremented on each retry */ |
| int retries; |
| int error; |
| |
| /* bytes to transfer */ |
| int req_xfer; |
| |
| /* 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. |
| */ |
| unsigned long timeout; |
| }; |
| |
| struct ide_devset; |
| struct ide_driver; |
| |
| #ifdef CONFIG_BLK_DEV_IDEACPI |
| struct ide_acpi_drive_link; |
| struct ide_acpi_hwif_link; |
| #endif |
| |
| struct ide_drive_s; |
| |
| struct ide_disk_ops { |
| int (*check)(struct ide_drive_s *, const char *); |
| int (*get_capacity)(struct ide_drive_s *); |
| void (*unlock_native_capacity)(struct ide_drive_s *); |
| void (*setup)(struct ide_drive_s *); |
| void (*flush)(struct ide_drive_s *); |
| int (*init_media)(struct ide_drive_s *, struct gendisk *); |
| int (*set_doorlock)(struct ide_drive_s *, struct gendisk *, |
| int); |
| ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *, |
| sector_t); |
| int (*ioctl)(struct ide_drive_s *, struct block_device *, |
| fmode_t, unsigned int, unsigned long); |
| int (*compat_ioctl)(struct ide_drive_s *, struct block_device *, |
| fmode_t, unsigned int, unsigned long); |
| }; |
| |
| /* ATAPI device flags */ |
| enum { |
| IDE_AFLAG_DRQ_INTERRUPT = BIT(0), |
| |
| /* ide-cd */ |
| /* Drive cannot eject the disc. */ |
| IDE_AFLAG_NO_EJECT = BIT(1), |
| /* Drive is a pre ATAPI 1.2 drive. */ |
| IDE_AFLAG_PRE_ATAPI12 = BIT(2), |
| /* TOC addresses are in BCD. */ |
| IDE_AFLAG_TOCADDR_AS_BCD = BIT(3), |
| /* TOC track numbers are in BCD. */ |
| IDE_AFLAG_TOCTRACKS_AS_BCD = BIT(4), |
| /* Saved TOC information is current. */ |
| IDE_AFLAG_TOC_VALID = BIT(6), |
| /* We think that the drive door is locked. */ |
| IDE_AFLAG_DOOR_LOCKED = BIT(7), |
| /* SET_CD_SPEED command is unsupported. */ |
| IDE_AFLAG_NO_SPEED_SELECT = BIT(8), |
| IDE_AFLAG_VERTOS_300_SSD = BIT(9), |
| IDE_AFLAG_VERTOS_600_ESD = BIT(10), |
| IDE_AFLAG_SANYO_3CD = BIT(11), |
| IDE_AFLAG_FULL_CAPS_PAGE = BIT(12), |
| IDE_AFLAG_PLAY_AUDIO_OK = BIT(13), |
| IDE_AFLAG_LE_SPEED_FIELDS = BIT(14), |
| |
| /* ide-floppy */ |
| /* Avoid commands not supported in Clik drive */ |
| IDE_AFLAG_CLIK_DRIVE = BIT(15), |
| /* Requires BH algorithm for packets */ |
| IDE_AFLAG_ZIP_DRIVE = BIT(16), |
| /* Supports format progress report */ |
| IDE_AFLAG_SRFP = BIT(17), |
| |
| /* ide-tape */ |
| IDE_AFLAG_IGNORE_DSC = BIT(18), |
| /* 0 When the tape position is unknown */ |
| IDE_AFLAG_ADDRESS_VALID = BIT(19), |
| /* Device already opened */ |
| IDE_AFLAG_BUSY = BIT(20), |
| /* Attempt to auto-detect the current user block size */ |
| IDE_AFLAG_DETECT_BS = BIT(21), |
| /* Currently on a filemark */ |
| IDE_AFLAG_FILEMARK = BIT(22), |
| /* 0 = no tape is loaded, so we don't rewind after ejecting */ |
| IDE_AFLAG_MEDIUM_PRESENT = BIT(23), |
| |
| IDE_AFLAG_NO_AUTOCLOSE = BIT(24), |
| }; |
| |
| /* device flags */ |
| enum { |
| /* restore settings after device reset */ |
| IDE_DFLAG_KEEP_SETTINGS = BIT(0), |
| /* device is using DMA for read/write */ |
| IDE_DFLAG_USING_DMA = BIT(1), |
| /* okay to unmask other IRQs */ |
| IDE_DFLAG_UNMASK = BIT(2), |
| /* don't attempt flushes */ |
| IDE_DFLAG_NOFLUSH = BIT(3), |
| /* DSC overlap */ |
| IDE_DFLAG_DSC_OVERLAP = BIT(4), |
| /* give potential excess bandwidth */ |
| IDE_DFLAG_NICE1 = BIT(5), |
| /* device is physically present */ |
| IDE_DFLAG_PRESENT = BIT(6), |
| /* disable Host Protected Area */ |
| IDE_DFLAG_NOHPA = BIT(7), |
| /* id read from device (synthetic if not set) */ |
| IDE_DFLAG_ID_READ = BIT(8), |
| IDE_DFLAG_NOPROBE = BIT(9), |
| /* need to do check_media_change() */ |
| IDE_DFLAG_REMOVABLE = BIT(10), |
| IDE_DFLAG_FORCED_GEOM = BIT(12), |
| /* disallow setting unmask bit */ |
| IDE_DFLAG_NO_UNMASK = BIT(13), |
| /* disallow enabling 32-bit I/O */ |
| IDE_DFLAG_NO_IO_32BIT = BIT(14), |
| /* for removable only: door lock/unlock works */ |
| IDE_DFLAG_DOORLOCKING = BIT(15), |
| /* disallow DMA */ |
| IDE_DFLAG_NODMA = BIT(16), |
| /* powermanagement told us not to do anything, so sleep nicely */ |
| IDE_DFLAG_BLOCKED = BIT(17), |
| /* sleeping & sleep field valid */ |
| IDE_DFLAG_SLEEPING = BIT(18), |
| IDE_DFLAG_POST_RESET = BIT(19), |
| IDE_DFLAG_UDMA33_WARNED = BIT(20), |
| IDE_DFLAG_LBA48 = BIT(21), |
| /* status of write cache */ |
| IDE_DFLAG_WCACHE = BIT(22), |
| /* used for ignoring ATA_DF */ |
| IDE_DFLAG_NOWERR = BIT(23), |
| /* retrying in PIO */ |
| IDE_DFLAG_DMA_PIO_RETRY = BIT(24), |
| IDE_DFLAG_LBA = BIT(25), |
| /* don't unload heads */ |
| IDE_DFLAG_NO_UNLOAD = BIT(26), |
| /* heads unloaded, please don't reset port */ |
| IDE_DFLAG_PARKED = BIT(27), |
| IDE_DFLAG_MEDIA_CHANGED = BIT(28), |
| /* write protect */ |
| IDE_DFLAG_WP = BIT(29), |
| IDE_DFLAG_FORMAT_IN_PROGRESS = BIT(30), |
| IDE_DFLAG_NIEN_QUIRK = BIT(31), |
| }; |
| |
| struct ide_drive_s { |
| char name[4]; /* drive name, such as "hda" */ |
| char driver_req[10]; /* requests specific driver */ |
| |
| struct request_queue *queue; /* request queue */ |
| |
| bool (*prep_rq)(struct ide_drive_s *, struct request *); |
| |
| struct blk_mq_tag_set tag_set; |
| |
| struct request *rq; /* current request */ |
| void *driver_data; /* extra driver data */ |
| u16 *id; /* identification info */ |
| #ifdef CONFIG_IDE_PROC_FS |
| struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
| const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ |
| #endif |
| struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
| |
| const struct ide_disk_ops *disk_ops; |
| |
| unsigned long dev_flags; |
| |
| unsigned long sleep; /* sleep until this time */ |
| unsigned long timeout; /* max time to wait for irq */ |
| |
| u8 special_flags; /* special action flags */ |
| |
| u8 select; /* basic drive/head select reg value */ |
| u8 retry_pio; /* retrying dma capable host in pio */ |
| u8 waiting_for_dma; /* dma currently in progress */ |
| u8 dma; /* atapi dma flag */ |
| |
| u8 init_speed; /* transfer rate set at boot */ |
| u8 current_speed; /* current transfer rate set */ |
| u8 desired_speed; /* desired transfer rate set */ |
| u8 pio_mode; /* for ->set_pio_mode _only_ */ |
| u8 dma_mode; /* for ->set_dma_mode _only_ */ |
| u8 dn; /* now wide spread use */ |
| u8 acoustic; /* acoustic management */ |
| u8 media; /* disk, cdrom, tape, floppy, ... */ |
| u8 ready_stat; /* min status value for drive ready */ |
| u8 mult_count; /* current multiple sector setting */ |
| u8 mult_req; /* requested multiple sector setting */ |
| u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ |
| 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 */ |
| void *drive_data; /* used by set_pio_mode/dev_select() */ |
| unsigned int failures; /* current failure count */ |
| unsigned int max_failures; /* maximum allowed failure count */ |
| u64 probed_capacity;/* initial/native media capacity */ |
| u64 capacity64; /* total number of sectors */ |
| |
| 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() */ |
| |
| /* current packet command */ |
| struct ide_atapi_pc *pc; |
| |
| /* last failed packet command */ |
| struct ide_atapi_pc *failed_pc; |
| |
| /* callback for packet commands */ |
| int (*pc_callback)(struct ide_drive_s *, int); |
| |
| ide_startstop_t (*irq_handler)(struct ide_drive_s *); |
| |
| unsigned long atapi_flags; |
| |
| struct ide_atapi_pc request_sense_pc; |
| |
| /* current sense rq and buffer */ |
| bool sense_rq_armed; |
| bool sense_rq_active; |
| struct request *sense_rq; |
| struct request_sense sense_data; |
| |
| /* async sense insertion */ |
| struct work_struct rq_work; |
| struct list_head rq_list; |
| }; |
| |
| 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, dev) |
| |
| #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 *); |
| void (*write_devctl)(struct hwif_s *, u8); |
| |
| void (*dev_select)(ide_drive_t *); |
| void (*tf_load)(ide_drive_t *, struct ide_taskfile *, u8); |
| void (*tf_read)(ide_drive_t *, struct ide_taskfile *, u8); |
| |
| void (*input_data)(ide_drive_t *, struct ide_cmd *, |
| void *, unsigned int); |
| void (*output_data)(ide_drive_t *, struct ide_cmd *, |
| 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 |
| * @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 { |
| void (*init_dev)(ide_drive_t *); |
| void (*set_pio_mode)(struct hwif_s *, ide_drive_t *); |
| void (*set_dma_mode)(struct hwif_s *, ide_drive_t *); |
| blk_status_t (*reset_poll)(ide_drive_t *); |
| void (*pre_reset)(ide_drive_t *); |
| void (*resetproc)(ide_drive_t *); |
| void (*maskproc)(ide_drive_t *, int); |
| void (*quirkproc)(ide_drive_t *); |
| void (*clear_irq)(ide_drive_t *); |
| int (*test_irq)(struct hwif_s *); |
| |
| u8 (*mdma_filter)(ide_drive_t *); |
| u8 (*udma_filter)(ide_drive_t *); |
| |
| u8 (*cable_detect)(struct hwif_s *); |
| }; |
| |
| struct ide_dma_ops { |
| void (*dma_host_set)(struct ide_drive_s *, int); |
| int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *); |
| void (*dma_start)(struct ide_drive_s *); |
| int (*dma_end)(struct ide_drive_s *); |
| int (*dma_test_irq)(struct ide_drive_s *); |
| void (*dma_lost_irq)(struct ide_drive_s *); |
| /* below ones are optional */ |
| int (*dma_check)(struct ide_drive_s *, struct ide_cmd *); |
| int (*dma_timer_expiry)(struct ide_drive_s *); |
| void (*dma_clear)(struct ide_drive_s *); |
| /* |
| * The following method is optional and only required to be |
| * implemented for the SFF-8038i compatible controllers. |
| */ |
| u8 (*dma_sff_read_status)(struct hwif_s *); |
| }; |
| |
| enum { |
| IDE_PFLAG_PROBING = BIT(0), |
| }; |
| |
| struct ide_host; |
| |
| typedef struct hwif_s { |
| struct hwif_s *mate; /* other hwif from same PCI chip */ |
| 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; |
| |
| unsigned long sata_scr[SATA_NR_PORTS]; |
| |
| ide_drive_t *devices[MAX_DRIVES + 1]; |
| |
| unsigned long port_flags; |
| |
| u8 major; /* our major number */ |
| u8 index; /* 0 for ide0; 1 for ide1; ... */ |
| u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ |
| |
| u32 host_flags; |
| |
| u8 pio_mask; |
| |
| u8 ultra_mask; |
| u8 mwdma_mask; |
| u8 swdma_mask; |
| |
| u8 cbl; /* cable type */ |
| |
| hwif_chipset_t chipset; /* sub-module for tuning.. */ |
| |
| struct device *dev; |
| |
| 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; |
| |
| /* 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 */ |
| |
| struct ide_cmd cmd; /* current command */ |
| |
| int rqsize; /* max sectors per request */ |
| int irq; /* our irq number */ |
| |
| unsigned long dma_base; /* base addr for dma ports */ |
| |
| unsigned long config_data; /* for use by chipset-specific code */ |
| unsigned long select_data; /* for use by chipset-specific code */ |
| |
| unsigned long extra_base; /* extra addr for dma ports */ |
| unsigned extra_ports; /* number of extra dma ports */ |
| |
| unsigned present : 1; /* this interface exists */ |
| unsigned busy : 1; /* serializes devices on a port */ |
| |
| struct device gendev; |
| struct device *portdev; |
| |
| struct completion gendev_rel_comp; /* To deal with device release() */ |
| |
| void *hwif_data; /* extra hwif data */ |
| |
| #ifdef CONFIG_BLK_DEV_IDEACPI |
| struct ide_acpi_hwif_link *acpidata; |
| #endif |
| |
| /* IRQ handler, if active */ |
| ide_startstop_t (*handler)(ide_drive_t *); |
| |
| /* BOOL: polling active & poll_timeout field valid */ |
| unsigned int polling : 1; |
| |
| /* current drive */ |
| ide_drive_t *cur_dev; |
| |
| /* current request */ |
| struct request *rq; |
| |
| /* failsafe timer */ |
| struct timer_list timer; |
| /* timeout value during long polls */ |
| unsigned long poll_timeout; |
| /* queried upon timeouts */ |
| int (*expiry)(ide_drive_t *); |
| |
| int req_gen; |
| int req_gen_timer; |
| |
| spinlock_t lock; |
| } ____cacheline_internodealigned_in_smp ide_hwif_t; |
| |
| #define MAX_HOST_PORTS 4 |
| |
| struct ide_host { |
| ide_hwif_t *ports[MAX_HOST_PORTS + 1]; |
| unsigned int n_ports; |
| struct device *dev[2]; |
| |
| int (*init_chipset)(struct pci_dev *); |
| |
| void (*get_lock)(irq_handler_t, void *); |
| void (*release_lock)(void); |
| |
| irq_handler_t irq_handler; |
| |
| unsigned long host_flags; |
| |
| int irq_flags; |
| |
| void *host_priv; |
| ide_hwif_t *cur_port; /* for hosts requiring serialization */ |
| |
| /* used for hosts requiring serialization */ |
| volatile unsigned long host_busy; |
| }; |
| |
| #define IDE_HOST_BUSY 0 |
| |
| /* |
| * internal ide interrupt handler type |
| */ |
| typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
| typedef int (ide_expiry_t)(ide_drive_t *); |
| |
| /* used by ide-cd, ide-floppy, etc. */ |
| typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned); |
| |
| extern struct mutex ide_setting_mtx; |
| |
| /* |
| * configurable drive settings |
| */ |
| |
| #define DS_SYNC BIT(0) |
| |
| struct ide_devset { |
| int (*get)(ide_drive_t *); |
| int (*set)(ide_drive_t *, int); |
| unsigned int flags; |
| }; |
| |
| #define __DEVSET(_flags, _get, _set) { \ |
| .flags = _flags, \ |
| .get = _get, \ |
| .set = _set, \ |
| } |
| |
| #define ide_devset_get(name, field) \ |
| static int get_##name(ide_drive_t *drive) \ |
| { \ |
| return drive->field; \ |
| } |
| |
| #define ide_devset_set(name, field) \ |
| static int set_##name(ide_drive_t *drive, int arg) \ |
| { \ |
| drive->field = arg; \ |
| return 0; \ |
| } |
| |
| #define ide_devset_get_flag(name, flag) \ |
| static int get_##name(ide_drive_t *drive) \ |
| { \ |
| return !!(drive->dev_flags & flag); \ |
| } |
| |
| #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; \ |
| } |
| |
| #define __IDE_DEVSET(_name, _flags, _get, _set) \ |
| const struct ide_devset ide_devset_##_name = \ |
| __DEVSET(_flags, _get, _set) |
| |
| #define IDE_DEVSET(_name, _flags, _get, _set) \ |
| static __IDE_DEVSET(_name, _flags, _get, _set) |
| |
| #define ide_devset_rw(_name, _func) \ |
| IDE_DEVSET(_name, 0, get_##_func, set_##_func) |
| |
| #define ide_devset_w(_name, _func) \ |
| IDE_DEVSET(_name, 0, NULL, set_##_func) |
| |
| #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 |
| /* |
| * /proc/ide interface |
| */ |
| |
| #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_ro_field(_name, _field) \ |
| ide_devset_get(_name, _field); \ |
| IDE_DEVSET(_name, 0, get_##_name, NULL) |
| |
| #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 __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ |
| .name = __stringify(_name), \ |
| .setting = &ide_devset_##_name, \ |
| .min = _min, \ |
| .max = _max, \ |
| .mulf = _mulf, \ |
| .divf = _divf, \ |
| } |
| |
| #define IDE_PROC_DEVSET(_name, _min, _max) \ |
| __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) |
| |
| typedef struct { |
| const char *name; |
| umode_t mode; |
| int (*show)(struct seq_file *, void *); |
| } ide_proc_entry_t; |
| |
| void proc_ide_create(void); |
| void proc_ide_destroy(void); |
| void ide_proc_register_port(ide_hwif_t *); |
| void ide_proc_port_register_devices(ide_hwif_t *); |
| void ide_proc_unregister_device(ide_drive_t *); |
| void ide_proc_unregister_port(ide_hwif_t *); |
| void ide_proc_register_driver(ide_drive_t *, struct ide_driver *); |
| void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *); |
| |
| int ide_capacity_proc_show(struct seq_file *m, void *v); |
| int ide_geometry_proc_show(struct seq_file *m, void *v); |
| #else |
| static inline void proc_ide_create(void) { ; } |
| static inline void proc_ide_destroy(void) { ; } |
| static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
| static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } |
| 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, |
| struct ide_driver *driver) { ; } |
| static inline void ide_proc_unregister_driver(ide_drive_t *drive, |
| struct ide_driver *driver) { ; } |
| #endif |
| |
| enum { |
| /* enter/exit functions */ |
| IDE_DBG_FUNC = BIT(0), |
| /* sense key/asc handling */ |
| IDE_DBG_SENSE = BIT(1), |
| /* packet commands handling */ |
| IDE_DBG_PC = BIT(2), |
| /* request handling */ |
| IDE_DBG_RQ = BIT(3), |
| /* driver probing/setup */ |
| IDE_DBG_PROBE = BIT(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 ": %s: " fmt "\n", \ |
| __func__, ## args); \ |
| } |
| |
| /* |
| * Power Management state machine (rq->pm->pm_step). |
| * |
| * 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, ide_start_power_step() will issue a taskfile request with |
| * do_rw_taskfile(). |
| * |
| * 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 |
| * ide_start_power_step() for the new step value, unless step have been |
| * set to IDE_PM_COMPLETED. |
| */ |
| enum { |
| 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, |
| }; |
| |
| int generic_ide_suspend(struct device *, pm_message_t); |
| int generic_ide_resume(struct device *); |
| |
| void ide_complete_power_step(ide_drive_t *, struct request *); |
| ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *); |
| void ide_complete_pm_rq(ide_drive_t *, struct request *); |
| void ide_check_pm_state(ide_drive_t *, struct request *); |
| |
| /* |
| * Subdrivers support. |
| * |
| * The gendriver.owner field should be set to the module owner of this driver. |
| * The gendriver.name field should be set to the name of this driver |
| */ |
| struct ide_driver { |
| const char *version; |
| ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
| 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_entries)(ide_drive_t *); |
| const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *); |
| #endif |
| }; |
| |
| #define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver) |
| |
| int ide_device_get(ide_drive_t *); |
| void ide_device_put(ide_drive_t *); |
| |
| struct ide_ioctl_devset { |
| unsigned int get_ioctl; |
| unsigned int set_ioctl; |
| const struct ide_devset *setting; |
| }; |
| |
| int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, |
| unsigned long, const struct ide_ioctl_devset *); |
| |
| int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long); |
| |
| extern int ide_vlb_clk; |
| extern int ide_pci_clk; |
| |
| int ide_end_rq(ide_drive_t *, struct request *, blk_status_t, unsigned int); |
| void ide_kill_rq(ide_drive_t *, struct request *); |
| void ide_insert_request_head(ide_drive_t *, struct request *); |
| |
| void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int); |
| void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int); |
| |
| void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *, |
| unsigned int); |
| |
| void ide_pad_transfer(ide_drive_t *, int, int); |
| |
| ide_startstop_t ide_error(ide_drive_t *, const char *, u8); |
| |
| void ide_fix_driveid(u16 *); |
| |
| extern void ide_fixstring(u8 *, const int, const int); |
| |
| int ide_busy_sleep(ide_drive_t *, unsigned long, int); |
| |
| int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long, u8 *); |
| int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
| |
| ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *); |
| ide_startstop_t ide_do_devset(ide_drive_t *, struct request *); |
| |
| extern ide_startstop_t ide_do_reset (ide_drive_t *); |
| |
| extern int ide_devset_execute(ide_drive_t *drive, |
| const struct ide_devset *setting, int arg); |
| |
| void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8); |
| int ide_complete_rq(ide_drive_t *, blk_status_t, unsigned int); |
| |
| void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd); |
| void ide_tf_dump(const char *, struct ide_cmd *); |
| |
| void ide_exec_command(ide_hwif_t *, u8); |
| u8 ide_read_status(ide_hwif_t *); |
| u8 ide_read_altstatus(ide_hwif_t *); |
| void ide_write_devctl(ide_hwif_t *, u8); |
| |
| void ide_dev_select(ide_drive_t *); |
| void ide_tf_load(ide_drive_t *, struct ide_taskfile *, u8); |
| void ide_tf_read(ide_drive_t *, struct ide_taskfile *, u8); |
| |
| void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int); |
| void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int); |
| |
| void SELECT_MASK(ide_drive_t *, int); |
| |
| u8 ide_read_error(ide_drive_t *); |
| void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); |
| |
| int ide_check_ireason(ide_drive_t *, struct request *, int, int, int); |
| |
| 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 = BIT(0), /* packet command (first stage) */ |
| REQ_IDETAPE_PC2 = BIT(1), /* packet command (second stage) */ |
| REQ_IDETAPE_READ = BIT(2), |
| REQ_IDETAPE_WRITE = BIT(3), |
| }; |
| |
| int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *, |
| void *, unsigned int); |
| |
| 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 *drive); |
| |
| void ide_prep_sense(ide_drive_t *drive, struct request *rq); |
| int ide_queue_sense_rq(ide_drive_t *drive, void *special); |
| |
| int ide_cd_expiry(ide_drive_t *); |
| |
| int ide_cd_get_xferlen(struct request *); |
| |
| ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *); |
| |
| ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *); |
| |
| void ide_pio_bytes(ide_drive_t *, struct ide_cmd *, unsigned int, unsigned int); |
| |
| void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8); |
| |
| int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16); |
| int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *); |
| |
| int ide_taskfile_ioctl(ide_drive_t *, unsigned long); |
| |
| int ide_dev_read_id(ide_drive_t *, u8, u16 *, int); |
| |
| extern int ide_driveid_update(ide_drive_t *); |
| extern int ide_config_drive_speed(ide_drive_t *, u8); |
| extern u8 eighty_ninty_three (ide_drive_t *); |
| extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
| |
| 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 void ide_timer_expiry(struct timer_list *t); |
| extern irqreturn_t ide_intr(int irq, void *dev_id); |
| extern blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data *); |
| extern blk_status_t ide_issue_rq(ide_drive_t *, struct request *, bool); |
| extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq); |
| |
| void ide_init_disk(struct gendisk *, ide_drive_t *); |
| |
| #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
| extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
| #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) |
| #else |
| #define ide_pci_register_driver(d) pci_register_driver(d) |
| #endif |
| |
| static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev) |
| { |
| if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) |
| return 1; |
| return 0; |
| } |
| |
| void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, |
| struct ide_hw *, struct ide_hw **); |
| 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, |
| const struct ide_port_info *d) |
| { |
| return -EINVAL; |
| } |
| #endif |
| |
| struct ide_pci_enablebit { |
| u8 reg; /* byte pci reg holding the enable-bit */ |
| u8 mask; /* mask to isolate the enable-bit */ |
| u8 val; /* value of masked reg when "enabled" */ |
| }; |
| |
| enum { |
| /* Uses ISA control ports not PCI ones. */ |
| IDE_HFLAG_ISA_PORTS = BIT(0), |
| /* single port device */ |
| IDE_HFLAG_SINGLE = BIT(1), |
| /* don't use legacy PIO blacklist */ |
| IDE_HFLAG_PIO_NO_BLACKLIST = BIT(2), |
| /* set for the second port of QD65xx */ |
| IDE_HFLAG_QD_2ND_PORT = BIT(3), |
| /* use PIO8/9 for prefetch off/on */ |
| IDE_HFLAG_ABUSE_PREFETCH = BIT(4), |
| /* use PIO6/7 for fast-devsel off/on */ |
| IDE_HFLAG_ABUSE_FAST_DEVSEL = BIT(5), |
| /* use 100-102 and 200-202 PIO values to set DMA modes */ |
| IDE_HFLAG_ABUSE_DMA_MODES = BIT(6), |
| /* |
| * keep DMA setting when programming PIO mode, may be used only |
| * for hosts which have separate PIO and DMA timings (ie. PMAC) |
| */ |
| IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = BIT(7), |
| /* program host for the transfer mode after programming device */ |
| IDE_HFLAG_POST_SET_MODE = BIT(8), |
| /* don't program host/device for the transfer mode ("smart" hosts) */ |
| IDE_HFLAG_NO_SET_MODE = BIT(9), |
| /* trust BIOS for programming chipset/device for DMA */ |
| IDE_HFLAG_TRUST_BIOS_FOR_DMA = BIT(10), |
| /* host is CS5510/CS5520 */ |
| IDE_HFLAG_CS5520 = BIT(11), |
| /* ATAPI DMA is unsupported */ |
| IDE_HFLAG_NO_ATAPI_DMA = BIT(12), |
| /* set if host is a "non-bootable" controller */ |
| IDE_HFLAG_NON_BOOTABLE = BIT(13), |
| /* host doesn't support DMA */ |
| IDE_HFLAG_NO_DMA = BIT(14), |
| /* check if host is PCI IDE device before allowing DMA */ |
| IDE_HFLAG_NO_AUTODMA = BIT(15), |
| /* host uses MMIO */ |
| IDE_HFLAG_MMIO = BIT(16), |
| /* no LBA48 */ |
| IDE_HFLAG_NO_LBA48 = BIT(17), |
| /* no LBA48 DMA */ |
| IDE_HFLAG_NO_LBA48_DMA = BIT(18), |
| /* data FIFO is cleared by an error */ |
| IDE_HFLAG_ERROR_STOPS_FIFO = BIT(19), |
| /* serialize ports */ |
| IDE_HFLAG_SERIALIZE = BIT(20), |
| /* host is DTC2278 */ |
| IDE_HFLAG_DTC2278 = BIT(21), |
| /* 4 devices on a single set of I/O ports */ |
| IDE_HFLAG_4DRIVES = BIT(22), |
| /* host is TRM290 */ |
| IDE_HFLAG_TRM290 = BIT(23), |
| /* use 32-bit I/O ops */ |
| IDE_HFLAG_IO_32BIT = BIT(24), |
| /* unmask IRQs */ |
| IDE_HFLAG_UNMASK_IRQS = BIT(25), |
| IDE_HFLAG_BROKEN_ALTSTATUS = BIT(26), |
| /* serialize ports if DMA is possible (for sl82c105) */ |
| IDE_HFLAG_SERIALIZE_DMA = BIT(27), |
| /* force host out of "simplex" mode */ |
| IDE_HFLAG_CLEAR_SIMPLEX = BIT(28), |
| /* DSC overlap is unsupported */ |
| IDE_HFLAG_NO_DSC = BIT(29), |
| /* never use 32-bit I/O ops */ |
| IDE_HFLAG_NO_IO_32BIT = BIT(30), |
| /* never unmask IRQs */ |
| IDE_HFLAG_NO_UNMASK_IRQS = BIT(31), |
| }; |
| |
| #ifdef CONFIG_BLK_DEV_OFFBOARD |
| # define IDE_HFLAG_OFF_BOARD 0 |
| #else |
| # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE |
| #endif |
| |
| struct ide_port_info { |
| char *name; |
| |
| int (*init_chipset)(struct pci_dev *); |
| |
| void (*get_lock)(irq_handler_t, void *); |
| void (*release_lock)(void); |
| |
| 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; |
| |
| struct ide_pci_enablebit enablebits[2]; |
| |
| hwif_chipset_t chipset; |
| |
| u16 max_sectors; /* if < than the default one */ |
| |
| u32 host_flags; |
| |
| int irq_flags; |
| |
| u8 pio_mask; |
| u8 swdma_mask; |
| u8 mwdma_mask; |
| u8 udma_mask; |
| }; |
| |
| /* |
| * State information carried for REQ_TYPE_ATA_PM_SUSPEND and REQ_TYPE_ATA_PM_RESUME |
| * requests. |
| */ |
| struct ide_pm_state { |
| /* PM state machine step value, currently driver specific */ |
| int pm_step; |
| /* requested PM state value (S1, S2, S3, S4, ...) */ |
| u32 pm_state; |
| void* data; /* for driver use */ |
| }; |
| |
| |
| 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 ide_cmd *); |
| void ide_init_sg_cmd(struct ide_cmd *, unsigned int); |
| |
| #define BAD_DMA_DRIVE 0 |
| #define GOOD_DMA_DRIVE 1 |
| |
| struct drive_list_entry { |
| const char *id_model; |
| const char *id_firmware; |
| }; |
| |
| 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 *); |
| |
| u8 ide_find_dma_mode(ide_drive_t *, u8); |
| |
| static inline u8 ide_max_dma_mode(ide_drive_t *drive) |
| { |
| return ide_find_dma_mode(drive, XFER_UDMA_6); |
| } |
| |
| void ide_dma_off_quietly(ide_drive_t *); |
| void ide_dma_off(ide_drive_t *); |
| void ide_dma_on(ide_drive_t *); |
| 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_dma_prepare(ide_drive_t *, struct ide_cmd *); |
| void ide_dma_unmap_sg(ide_drive_t *, struct ide_cmd *); |
| |
| #ifdef CONFIG_BLK_DEV_IDEDMA_SFF |
| int config_drive_for_dma(ide_drive_t *); |
| int ide_build_dmatable(ide_drive_t *, struct ide_cmd *); |
| void ide_dma_host_set(ide_drive_t *, int); |
| int ide_dma_setup(ide_drive_t *, struct ide_cmd *); |
| extern void ide_dma_start(ide_drive_t *); |
| int ide_dma_end(ide_drive_t *); |
| int ide_dma_test_irq(ide_drive_t *); |
| int ide_dma_sff_timer_expiry(ide_drive_t *); |
| u8 ide_dma_sff_read_status(ide_hwif_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 *); |
| ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int); |
| |
| #else |
| 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_quietly(ide_drive_t *drive) { ; } |
| static inline void ide_dma_off(ide_drive_t *drive) { ; } |
| 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) { ; } |
| static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; } |
| static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; } |
| static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } |
| static inline int ide_dma_prepare(ide_drive_t *drive, |
| struct ide_cmd *cmd) { return 1; } |
| static inline void ide_dma_unmap_sg(ide_drive_t *drive, |
| struct ide_cmd *cmd) { ; } |
| #endif /* CONFIG_BLK_DEV_IDEDMA */ |
| |
| #ifdef CONFIG_BLK_DEV_IDEACPI |
| int ide_acpi_init(void); |
| bool ide_port_acpi(ide_hwif_t *hwif); |
| extern int ide_acpi_exec_tfs(ide_drive_t *drive); |
| extern void ide_acpi_get_timing(ide_hwif_t *hwif); |
| extern void ide_acpi_push_timing(ide_hwif_t *hwif); |
| void ide_acpi_init_port(ide_hwif_t *); |
| void ide_acpi_port_init_devices(ide_hwif_t *); |
| extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
| #else |
| static inline int ide_acpi_init(void) { return 0; } |
| static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; } |
| static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } |
| static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } |
| static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } |
| static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; } |
| static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } |
| static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} |
| #endif |
| |
| void ide_check_nien_quirk_list(ide_drive_t *); |
| void ide_undecoded_slave(ide_drive_t *); |
| |
| void ide_port_apply_params(ide_hwif_t *); |
| int ide_sysfs_register_port(ide_hwif_t *); |
| |
| struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **, |
| unsigned int); |
| void ide_host_free(struct ide_host *); |
| int ide_host_register(struct ide_host *, const struct ide_port_info *, |
| struct ide_hw **); |
| int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int, |
| 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 *); |
| |
| static inline void *ide_get_hwifdata (ide_hwif_t * hwif) |
| { |
| return hwif->hwif_data; |
| } |
| |
| static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) |
| { |
| hwif->hwif_data = data; |
| } |
| |
| u64 ide_get_lba_addr(struct ide_cmd *, int); |
| u8 ide_dump_status(ide_drive_t *, const char *, u8); |
| |
| 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 = BIT(0), |
| IDE_TIMING_ACT8B = BIT(1), |
| IDE_TIMING_REC8B = BIT(2), |
| IDE_TIMING_CYC8B = BIT(3), |
| IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | |
| IDE_TIMING_CYC8B, |
| IDE_TIMING_ACTIVE = BIT(4), |
| IDE_TIMING_RECOVER = BIT(5), |
| IDE_TIMING_CYCLE = BIT(6), |
| IDE_TIMING_UDMA = BIT(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); |
| |
| #ifdef CONFIG_IDE_XFER_MODE |
| int ide_scan_pio_blacklist(char *); |
| const char *ide_xfer_verbose(u8); |
| int ide_pio_need_iordy(ide_drive_t *, const u8); |
| int ide_set_pio_mode(ide_drive_t *, u8); |
| int ide_set_dma_mode(ide_drive_t *, u8); |
| void ide_set_pio(ide_drive_t *, u8); |
| int ide_set_xfer_rate(ide_drive_t *, u8); |
| #else |
| static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; } |
| static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; } |
| #endif |
| |
| static inline void ide_set_max_pio(ide_drive_t *drive) |
| { |
| ide_set_pio(drive, 255); |
| } |
| |
| char *ide_media_string(ide_drive_t *); |
| |
| extern const struct attribute_group *ide_dev_groups[]; |
| extern struct bus_type ide_bus_type; |
| extern struct class *ide_port_class; |
| |
| static inline void ide_dump_identify(u8 *id) |
| { |
| print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); |
| } |
| |
| static inline int hwif_to_node(ide_hwif_t *hwif) |
| { |
| return hwif->dev ? dev_to_node(hwif->dev) : -1; |
| } |
| |
| static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) |
| { |
| ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1]; |
| |
| return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; |
| } |
| |
| static inline void *ide_get_drivedata(ide_drive_t *drive) |
| { |
| return drive->drive_data; |
| } |
| |
| static inline void ide_set_drivedata(ide_drive_t *drive, void *data) |
| { |
| drive->drive_data = data; |
| } |
| |
| #define ide_port_for_each_dev(i, dev, port) \ |
| for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) |
| |
| #define ide_port_for_each_present_dev(i, dev, port) \ |
| for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \ |
| if ((dev)->dev_flags & IDE_DFLAG_PRESENT) |
| |
| #define ide_host_for_each_port(i, port, host) \ |
| for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++) |
| |
| |
| #endif /* _IDE_H */ |