The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ata/ata-all.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer,
   12  *    without modification, immediately at the beginning of the file.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 
   31 #if 0
   32 #define ATA_LEGACY_SUPPORT              /* Enable obsolete features that break
   33                                          * some modern devices */
   34 #endif
   35 
   36 /* ATA register defines */
   37 #define ATA_DATA                        0       /* (RW) data */
   38 
   39 #define ATA_FEATURE                     1       /* (W) feature */
   40 #define         ATA_F_DMA               0x01    /* enable DMA */
   41 #define         ATA_F_OVL               0x02    /* enable overlap */
   42 
   43 #define ATA_COUNT                       2       /* (W) sector count */
   44 
   45 #define ATA_SECTOR                      3       /* (RW) sector # */
   46 #define ATA_CYL_LSB                     4       /* (RW) cylinder# LSB */
   47 #define ATA_CYL_MSB                     5       /* (RW) cylinder# MSB */
   48 #define ATA_DRIVE                       6       /* (W) Sector/Drive/Head */
   49 #define         ATA_D_LBA               0x40    /* use LBA addressing */
   50 #define         ATA_D_IBM               0xa0    /* 512 byte sectors, ECC */
   51 
   52 #define ATA_COMMAND                     7       /* (W) command */
   53 
   54 #define ATA_ERROR                       8       /* (R) error */
   55 #define         ATA_E_ILI               0x01    /* illegal length */
   56 #define         ATA_E_NM                0x02    /* no media */
   57 #define         ATA_E_ABORT             0x04    /* command aborted */
   58 #define         ATA_E_MCR               0x08    /* media change request */
   59 #define         ATA_E_IDNF              0x10    /* ID not found */
   60 #define         ATA_E_MC                0x20    /* media changed */
   61 #define         ATA_E_UNC               0x40    /* uncorrectable data */
   62 #define         ATA_E_ICRC              0x80    /* UDMA crc error */
   63 #define         ATA_E_ATAPI_SENSE_MASK  0xf0    /* ATAPI sense key mask */
   64 
   65 #define ATA_IREASON                     9       /* (R) interrupt reason */
   66 #define         ATA_I_CMD               0x01    /* cmd (1) | data (0) */
   67 #define         ATA_I_IN                0x02    /* read (1) | write (0) */
   68 #define         ATA_I_RELEASE           0x04    /* released bus (1) */
   69 #define         ATA_I_TAGMASK           0xf8    /* tag mask */
   70 
   71 #define ATA_STATUS                      10      /* (R) status */
   72 #define ATA_ALTSTAT                     11      /* (R) alternate status */
   73 #define         ATA_S_ERROR             0x01    /* error */
   74 #define         ATA_S_INDEX             0x02    /* index */
   75 #define         ATA_S_CORR              0x04    /* data corrected */
   76 #define         ATA_S_DRQ               0x08    /* data request */
   77 #define         ATA_S_DSC               0x10    /* drive seek completed */
   78 #define         ATA_S_SERVICE           0x10    /* drive needs service */
   79 #define         ATA_S_DWF               0x20    /* drive write fault */
   80 #define         ATA_S_DMA               0x20    /* DMA ready */
   81 #define         ATA_S_READY             0x40    /* drive ready */
   82 #define         ATA_S_BUSY              0x80    /* busy */
   83 
   84 #define ATA_CONTROL                     12      /* (W) control */
   85 
   86 #define ATA_CTLOFFSET                   0x206   /* control register offset */
   87 #define ATA_PCCARD_CTLOFFSET            0x0e    /* do for PCCARD devices */
   88 #define         ATA_A_IDS               0x02    /* disable interrupts */
   89 #define         ATA_A_RESET             0x04    /* RESET controller */
   90 #ifdef  ATA_LEGACY_SUPPORT                      
   91 #define         ATA_A_4BIT              0x08    /* 4 head bits: obsolete 1996 */
   92 #else
   93 #define         ATA_A_4BIT              0x00 
   94 #endif
   95 #define         ATA_A_HOB               0x80    /* High Order Byte enable */
   96 
   97 /* SATA register defines */
   98 #define ATA_SSTATUS                     13
   99 #define         ATA_SS_DET_MASK         0x0000000f
  100 #define         ATA_SS_DET_NO_DEVICE    0x00000000
  101 #define         ATA_SS_DET_DEV_PRESENT  0x00000001
  102 #define         ATA_SS_DET_PHY_ONLINE   0x00000003
  103 #define         ATA_SS_DET_PHY_OFFLINE  0x00000004
  104 
  105 #define         ATA_SS_SPD_MASK         0x000000f0
  106 #define         ATA_SS_SPD_NO_SPEED     0x00000000
  107 #define         ATA_SS_SPD_GEN1         0x00000010
  108 #define         ATA_SS_SPD_GEN2         0x00000020
  109 #define         ATA_SS_SPD_GEN3         0x00000030
  110 
  111 #define         ATA_SS_IPM_MASK         0x00000f00
  112 #define         ATA_SS_IPM_NO_DEVICE    0x00000000
  113 #define         ATA_SS_IPM_ACTIVE       0x00000100
  114 #define         ATA_SS_IPM_PARTIAL      0x00000200
  115 #define         ATA_SS_IPM_SLUMBER      0x00000600
  116 
  117 #define ATA_SERROR                      14
  118 #define         ATA_SE_DATA_CORRECTED   0x00000001
  119 #define         ATA_SE_COMM_CORRECTED   0x00000002
  120 #define         ATA_SE_DATA_ERR         0x00000100
  121 #define         ATA_SE_COMM_ERR         0x00000200
  122 #define         ATA_SE_PROT_ERR         0x00000400
  123 #define         ATA_SE_HOST_ERR         0x00000800
  124 #define         ATA_SE_PHY_CHANGED      0x00010000
  125 #define         ATA_SE_PHY_IERROR       0x00020000
  126 #define         ATA_SE_COMM_WAKE        0x00040000
  127 #define         ATA_SE_DECODE_ERR       0x00080000
  128 #define         ATA_SE_PARITY_ERR       0x00100000
  129 #define         ATA_SE_CRC_ERR          0x00200000
  130 #define         ATA_SE_HANDSHAKE_ERR    0x00400000
  131 #define         ATA_SE_LINKSEQ_ERR      0x00800000
  132 #define         ATA_SE_TRANSPORT_ERR    0x01000000
  133 #define         ATA_SE_UNKNOWN_FIS      0x02000000
  134 
  135 #define ATA_SCONTROL                    15
  136 #define         ATA_SC_DET_MASK         0x0000000f
  137 #define         ATA_SC_DET_IDLE         0x00000000
  138 #define         ATA_SC_DET_RESET        0x00000001
  139 #define         ATA_SC_DET_DISABLE      0x00000004
  140 
  141 #define         ATA_SC_SPD_MASK         0x000000f0
  142 #define         ATA_SC_SPD_NO_SPEED     0x00000000
  143 #define         ATA_SC_SPD_SPEED_GEN1   0x00000010
  144 #define         ATA_SC_SPD_SPEED_GEN2   0x00000020
  145 #define         ATA_SC_SPD_SPEED_GEN3   0x00000030
  146 
  147 #define         ATA_SC_IPM_MASK         0x00000f00
  148 #define         ATA_SC_IPM_NONE         0x00000000
  149 #define         ATA_SC_IPM_DIS_PARTIAL  0x00000100
  150 #define         ATA_SC_IPM_DIS_SLUMBER  0x00000200
  151 
  152 #define ATA_SACTIVE                     16
  153 
  154 /* DMA register defines */
  155 #define ATA_DMA_ENTRIES                 MAX(17, btoc(maxphys) + 1)
  156 #define ATA_DMA_EOT                     0x80000000
  157 
  158 #define ATA_BMCMD_PORT                  17
  159 #define         ATA_BMCMD_START_STOP    0x01
  160 #define         ATA_BMCMD_WRITE_READ    0x08
  161 
  162 #define ATA_BMDEVSPEC_0                 18
  163 #define ATA_BMSTAT_PORT                 19
  164 #define         ATA_BMSTAT_ACTIVE       0x01
  165 #define         ATA_BMSTAT_ERROR        0x02
  166 #define         ATA_BMSTAT_INTERRUPT    0x04
  167 #define         ATA_BMSTAT_MASK         0x07
  168 #define         ATA_BMSTAT_DMA_MASTER   0x20
  169 #define         ATA_BMSTAT_DMA_SLAVE    0x40
  170 #define         ATA_BMSTAT_DMA_SIMPLEX  0x80
  171 
  172 #define ATA_BMDEVSPEC_1                 20
  173 #define ATA_BMDTP_PORT                  21
  174 
  175 #define ATA_IDX_ADDR                    22
  176 #define ATA_IDX_DATA                    23
  177 #define ATA_MAX_RES                     24
  178 
  179 /* misc defines */
  180 #define ATA_PRIMARY                     0x1f0
  181 #define ATA_SECONDARY                   0x170
  182 #define ATA_IOSIZE                      0x08
  183 #define ATA_CTLIOSIZE                   0x01
  184 #define ATA_BMIOSIZE                    0x08
  185 #define ATA_IOADDR_RID                  0
  186 #define ATA_CTLADDR_RID                 1
  187 #define ATA_BMADDR_RID                  0x20
  188 #define ATA_IRQ_RID                     0
  189 #define ATA_DEV(unit)                   ((unit > 0) ? 0x10 : 0)
  190 #define ATA_CFA_MAGIC1                  0x844A
  191 #define ATA_CFA_MAGIC2                  0x848A
  192 #define ATA_CFA_MAGIC3                  0x8400
  193 #define ATAPI_MAGIC_LSB                 0x14
  194 #define ATAPI_MAGIC_MSB                 0xeb
  195 #define ATAPI_P_READ                    (ATA_S_DRQ | ATA_I_IN)
  196 #define ATAPI_P_WRITE                   (ATA_S_DRQ)
  197 #define ATAPI_P_CMDOUT                  (ATA_S_DRQ | ATA_I_CMD)
  198 #define ATAPI_P_DONEDRQ                 (ATA_S_DRQ | ATA_I_CMD | ATA_I_IN)
  199 #define ATAPI_P_DONE                    (ATA_I_CMD | ATA_I_IN)
  200 #define ATAPI_P_ABORT                   0
  201 #define ATA_INTR_FLAGS                  (INTR_MPSAFE|INTR_TYPE_BIO|INTR_ENTROPY)
  202 #define ATA_OP_CONTINUES                0
  203 #define ATA_OP_FINISHED                 1
  204 #define ATA_MAX_28BIT_LBA               268435455UL
  205 
  206 /* structure used for composite atomic operations */
  207 #define MAX_COMPOSITES          32              /* u_int32_t bits */
  208 struct ata_composite {
  209     struct mtx          lock;                   /* control lock */
  210     u_int32_t           rd_needed;              /* needed read subdisks */
  211     u_int32_t           rd_done;                /* done read subdisks */
  212     u_int32_t           wr_needed;              /* needed write subdisks */
  213     u_int32_t           wr_depend;              /* write depends on subdisks */
  214     u_int32_t           wr_done;                /* done write subdisks */
  215     struct ata_request  *request[MAX_COMPOSITES];
  216     u_int32_t           residual;               /* bytes still to transfer */
  217     caddr_t             data_1;     
  218     caddr_t             data_2;     
  219 };
  220 
  221 /* structure used to queue an ATA/ATAPI request */
  222 struct ata_request {
  223     device_t                    dev;            /* device handle */
  224     device_t                    parent;         /* channel handle */
  225     int                         unit;           /* physical unit */
  226     union {
  227         struct {
  228             u_int8_t            command;        /* command reg */
  229             u_int16_t           feature;        /* feature reg */
  230             u_int16_t           count;          /* count reg */
  231             u_int64_t           lba;            /* lba reg */
  232         } ata;
  233         struct {
  234             u_int8_t            ccb[16];        /* ATAPI command block */
  235             struct atapi_sense  sense;          /* ATAPI request sense data */
  236             u_int8_t            saved_cmd;      /* ATAPI saved command */
  237         } atapi;
  238     } u;
  239     u_int32_t                   bytecount;      /* bytes to transfer */
  240     u_int32_t                   transfersize;   /* bytes pr transfer */
  241     caddr_t                     data;           /* pointer to data buf */
  242     u_int32_t                   tag;            /* HW tag of this request */
  243     int                         flags;
  244 #define         ATA_R_CONTROL           0x00000001
  245 #define         ATA_R_READ              0x00000002
  246 #define         ATA_R_WRITE             0x00000004
  247 #define         ATA_R_ATAPI             0x00000008
  248 #define         ATA_R_DMA               0x00000010
  249 #define         ATA_R_QUIET             0x00000020
  250 #define         ATA_R_TIMEOUT           0x00000040
  251 #define         ATA_R_48BIT             0x00000080
  252 
  253 #define         ATA_R_ORDERED           0x00000100
  254 #define         ATA_R_AT_HEAD           0x00000200
  255 #define         ATA_R_REQUEUE           0x00000400
  256 #define         ATA_R_THREAD            0x00000800
  257 #define         ATA_R_DIRECT            0x00001000
  258 #define         ATA_R_NEEDRESULT        0x00002000
  259 #define         ATA_R_DATA_IN_CCB       0x00004000
  260 
  261 #define         ATA_R_ATAPI16           0x00010000
  262 #define         ATA_R_ATAPI_INTR        0x00020000
  263 
  264 #define         ATA_R_DEBUG             0x10000000
  265 #define         ATA_R_DANGER1           0x20000000
  266 #define         ATA_R_DANGER2           0x40000000
  267 
  268     struct ata_dmaslot          *dma;           /* DMA slot of this request */
  269     u_int8_t                    status;         /* ATA status */
  270     u_int8_t                    error;          /* ATA error */
  271     u_int32_t                   donecount;      /* bytes transferred */
  272     int                         result;         /* result error code */
  273     void                        (*callback)(struct ata_request *request);
  274     struct sema                 done;           /* request done sema */
  275     int                         retries;        /* retry count */
  276     int                         timeout;        /* timeout for this cmd */
  277     struct callout              callout;        /* callout management */
  278     struct task                 task;           /* task management */
  279     struct bio                  *bio;           /* bio for this request */
  280     int                         this;           /* this request ID */
  281     struct ata_composite        *composite;     /* for composite atomic ops */
  282     void                        *driver;        /* driver specific */
  283     TAILQ_ENTRY(ata_request)    chain;          /* list management */
  284     union ccb                   *ccb;
  285 };
  286 
  287 /* define this for debugging request processing */
  288 #if 0
  289 #define ATA_DEBUG_RQ(request, string) \
  290     { \
  291     if (request->flags & ATA_R_DEBUG) \
  292         device_printf(request->parent, "req=%p %s " string "\n", \
  293                       request, ata_cmd2str(request)); \
  294     }
  295 #else
  296 #define ATA_DEBUG_RQ(request, string)
  297 #endif
  298 
  299 /* structure describing an ATA/ATAPI device */
  300 struct ata_device {
  301     device_t                    dev;            /* device handle */
  302     int                         unit;           /* physical unit */
  303 #define         ATA_MASTER              0x00
  304 #define         ATA_SLAVE               0x01
  305 #define         ATA_PM                  0x0f
  306 
  307     struct ata_params           param;          /* ata param structure */
  308     int                         mode;           /* current transfermode */
  309     u_int32_t                   max_iosize;     /* max IO size */
  310     int                         spindown;       /* idle spindown timeout */
  311     struct callout              spindown_timer;
  312     int                         spindown_state;
  313     int                         flags;
  314 #define         ATA_D_USE_CHS           0x0001
  315 #define         ATA_D_MEDIA_CHANGED     0x0002
  316 #define         ATA_D_ENC_PRESENT       0x0004
  317 };
  318 
  319 /* structure for holding DMA Physical Region Descriptors (PRD) entries */
  320 struct ata_dma_prdentry {
  321     u_int32_t addr;
  322     u_int32_t count;
  323 };  
  324 
  325 /* structure used by the setprd function */
  326 struct ata_dmasetprd_args {
  327     void *dmatab;
  328     int nsegs;
  329     int error;
  330 };
  331 
  332 struct ata_dmaslot {
  333     u_int8_t                    status;         /* DMA status */
  334     bus_dma_tag_t               sg_tag;         /* SG list DMA tag */
  335     bus_dmamap_t                sg_map;         /* SG list DMA map */
  336     void                        *sg;            /* DMA transfer table */
  337     bus_addr_t                  sg_bus;         /* bus address of dmatab */
  338     bus_dma_tag_t               data_tag;       /* data DMA tag */
  339     bus_dmamap_t                data_map;       /* data DMA map */
  340 };
  341 
  342 /* structure holding DMA related information */
  343 struct ata_dma {
  344     bus_dma_tag_t               dmatag;         /* parent DMA tag */
  345     bus_dma_tag_t               work_tag;       /* workspace DMA tag */
  346     bus_dmamap_t                work_map;       /* workspace DMA map */
  347     u_int8_t                    *work;          /* workspace */
  348     bus_addr_t                  work_bus;       /* bus address of dmatab */
  349 
  350 #define ATA_DMA_SLOTS                   1
  351     int                         dma_slots;      /* DMA slots allocated */
  352     struct ata_dmaslot          slot[ATA_DMA_SLOTS];
  353     u_int32_t                   alignment;      /* DMA SG list alignment */
  354     u_int32_t                   boundary;       /* DMA SG list boundary */
  355     u_int32_t                   segsize;        /* DMA SG list segment size */
  356     u_int32_t                   max_iosize;     /* DMA data max IO size */
  357     u_int64_t                   max_address;    /* highest DMA'able address */
  358     int                         flags;
  359 #define ATA_DMA_ACTIVE                  0x01    /* DMA transfer in progress */
  360 
  361     void (*alloc)(device_t dev);
  362     void (*free)(device_t dev);
  363     void (*setprd)(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
  364     int (*load)(struct ata_request *request, void *addr, int *nsegs);
  365     int (*unload)(struct ata_request *request);
  366     int (*start)(struct ata_request *request);
  367     int (*stop)(struct ata_request *request);
  368     void (*reset)(device_t dev);
  369 };
  370 
  371 /* structure holding lowlevel functions */
  372 struct ata_lowlevel {
  373     u_int32_t (*softreset)(device_t dev, int pmport);
  374     int (*pm_read)(device_t dev, int port, int reg, u_int32_t *result);
  375     int (*pm_write)(device_t dev, int port, int reg, u_int32_t value);
  376     int (*status)(device_t dev);
  377     int (*begin_transaction)(struct ata_request *request);
  378     int (*end_transaction)(struct ata_request *request);
  379     int (*command)(struct ata_request *request);
  380     void (*tf_read)(struct ata_request *request);
  381     void (*tf_write)(struct ata_request *request);
  382 };
  383 
  384 /* structure holding resources for an ATA channel */
  385 struct ata_resource {
  386     struct resource             *res;
  387     int                         offset;
  388 };
  389 
  390 struct ata_cam_device {
  391         u_int                   revision;
  392         int                     mode;
  393         u_int                   bytecount;
  394         u_int                   atapi;
  395         u_int                   caps;
  396 };
  397 
  398 /* structure describing an ATA channel */
  399 struct ata_channel {
  400     device_t                    dev;            /* device handle */
  401     int                         unit;           /* physical channel */
  402     int                         attached;       /* channel is attached */
  403     struct ata_resource         r_io[ATA_MAX_RES];/* I/O resources */
  404     struct resource             *r_irq;         /* interrupt of this channel */
  405     void                        *ih;            /* interrupt handle */
  406     struct ata_lowlevel         hw;             /* lowlevel HW functions */
  407     struct ata_dma              dma;            /* DMA data / functions */
  408     int                         flags;          /* channel flags */
  409 #define         ATA_NO_SLAVE            0x01
  410 #define         ATA_USE_16BIT           0x02
  411 #define         ATA_ATAPI_DMA_RO        0x04
  412 #define         ATA_NO_48BIT_DMA        0x08
  413 #define         ATA_ALWAYS_DMASTAT      0x10
  414 #define         ATA_CHECKS_CABLE        0x20
  415 #define         ATA_NO_ATAPI_DMA        0x40
  416 #define         ATA_SATA                0x80
  417 #define         ATA_DMA_BEFORE_CMD      0x100
  418 #define         ATA_KNOWN_PRESENCE      0x200
  419 #define         ATA_STATUS_IS_LONG      0x400
  420 #define         ATA_PERIODIC_POLL       0x800
  421 
  422     int                         pm_level;       /* power management level */
  423     int                         devices;        /* what is present */
  424 #define         ATA_ATA_MASTER          0x00000001
  425 #define         ATA_ATA_SLAVE           0x00000002
  426 #define         ATA_PORTMULTIPLIER      0x00008000
  427 #define         ATA_ATAPI_MASTER        0x00010000
  428 #define         ATA_ATAPI_SLAVE         0x00020000
  429 
  430     struct mtx                  state_mtx;      /* state lock */
  431     int                         state;          /* ATA channel state */
  432 #define         ATA_IDLE                0x0000
  433 #define         ATA_ACTIVE              0x0001
  434 #define         ATA_STALL_QUEUE         0x0002
  435 
  436     struct ata_request          *running;       /* currently running request */
  437     struct task                 conntask;       /* PHY events handling task */
  438         struct cam_sim          *sim;
  439         struct cam_path         *path;
  440         struct ata_cam_device   user[16];       /* User-specified settings */
  441         struct ata_cam_device   curr[16];       /* Current settings */
  442         int                     requestsense;   /* CCB waiting for SENSE. */
  443         struct callout          poll_callout;   /* Periodic status poll. */
  444         struct ata_request      request;
  445 };
  446 
  447 /* disk bay/enclosure related */
  448 #define         ATA_LED_OFF             0x00
  449 #define         ATA_LED_RED             0x01
  450 #define         ATA_LED_GREEN           0x02
  451 #define         ATA_LED_ORANGE          0x03
  452 #define         ATA_LED_MASK            0x03
  453 
  454 /* externs */
  455 extern int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data);
  456 extern struct intr_config_hook *ata_delayed_attach;
  457 extern devclass_t ata_devclass;
  458 extern int ata_wc;
  459 extern int ata_setmax;
  460 extern int ata_dma_check_80pin;
  461 
  462 /* public prototypes */
  463 /* ata-all.c: */
  464 int ata_probe(device_t dev);
  465 int ata_attach(device_t dev);
  466 int ata_detach(device_t dev);
  467 int ata_reinit(device_t dev);
  468 int ata_suspend(device_t dev);
  469 int ata_resume(device_t dev);
  470 void ata_interrupt(void *data);
  471 int ata_getparam(struct ata_device *atadev, int init);
  472 void ata_default_registers(device_t dev);
  473 void ata_udelay(int interval);
  474 const char *ata_cmd2str(struct ata_request *request);
  475 const char *ata_mode2str(int mode);
  476 void ata_setmode(device_t dev);
  477 void ata_print_cable(device_t dev, u_int8_t *who);
  478 int ata_atapi(device_t dev, int target);
  479 void ata_timeout(void *);
  480 
  481 /* ata-lowlevel.c: */
  482 void ata_generic_hw(device_t dev);
  483 int ata_begin_transaction(struct ata_request *);
  484 int ata_end_transaction(struct ata_request *);
  485 void ata_generic_reset(device_t dev);
  486 int ata_generic_command(struct ata_request *request);
  487 
  488 /* ata-dma.c: */
  489 void ata_dmainit(device_t);
  490 void ata_dmafini(device_t dev);
  491 
  492 /* ata-sata.c: */
  493 void ata_sata_phy_check_events(device_t dev, int port);
  494 int ata_sata_scr_read(struct ata_channel *ch, int port, int reg, uint32_t *val);
  495 int ata_sata_scr_write(struct ata_channel *ch, int port, int reg, uint32_t val);
  496 int ata_sata_phy_reset(device_t dev, int port, int quick);
  497 int ata_sata_setmode(device_t dev, int target, int mode);
  498 int ata_sata_getrev(device_t dev, int target);
  499 int ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis);
  500 void ata_pm_identify(device_t dev);
  501 
  502 MALLOC_DECLARE(M_ATA);
  503 
  504 /* misc newbus defines */
  505 #define GRANDPARENT(dev)        device_get_parent(device_get_parent(dev))
  506 
  507 /* macros to hide busspace uglyness */
  508 #define ATA_INB(res, offset) \
  509         bus_read_1((res), (offset))
  510 
  511 #define ATA_INW(res, offset) \
  512         bus_read_2((res), (offset))
  513 #define ATA_INW_STRM(res, offset) \
  514         bus_read_stream_2((res), (offset))
  515 #define ATA_INL(res, offset) \
  516         bus_read_4((res), (offset))
  517 #define ATA_INSW(res, offset, addr, count) \
  518         bus_read_multi_2((res), (offset), (addr), (count))
  519 #define ATA_INSW_STRM(res, offset, addr, count) \
  520         bus_read_multi_stream_2((res), (offset), (addr), (count))
  521 #define ATA_INSL(res, offset, addr, count) \
  522         bus_read_multi_4((res), (offset), (addr), (count))
  523 #define ATA_INSL_STRM(res, offset, addr, count) \
  524         bus_read_multi_stream_4((res), (offset), (addr), (count))
  525 #define ATA_OUTB(res, offset, value) \
  526         bus_write_1((res), (offset), (value))
  527 #define ATA_OUTW(res, offset, value) \
  528         bus_write_2((res), (offset), (value))
  529 #define ATA_OUTW_STRM(res, offset, value) \
  530         bus_write_stream_2((res), (offset), (value))
  531 #define ATA_OUTL(res, offset, value) \
  532         bus_write_4((res), (offset), (value))
  533 #define ATA_OUTSW(res, offset, addr, count) \
  534         bus_write_multi_2((res), (offset), (addr), (count))
  535 #define ATA_OUTSW_STRM(res, offset, addr, count) \
  536         bus_write_multi_stream_2((res), (offset), (addr), (count))
  537 #define ATA_OUTSL(res, offset, addr, count) \
  538         bus_write_multi_4((res), (offset), (addr), (count))
  539 #define ATA_OUTSL_STRM(res, offset, addr, count) \
  540         bus_write_multi_stream_4((res), (offset), (addr), (count))
  541 
  542 #define ATA_IDX_INB(ch, idx) \
  543         ATA_INB(ch->r_io[idx].res, ch->r_io[idx].offset)
  544 
  545 #define ATA_IDX_INW(ch, idx) \
  546         ATA_INW(ch->r_io[idx].res, ch->r_io[idx].offset)
  547 
  548 #define ATA_IDX_INW_STRM(ch, idx) \
  549         ATA_INW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset)
  550 
  551 #define ATA_IDX_INL(ch, idx) \
  552         ATA_INL(ch->r_io[idx].res, ch->r_io[idx].offset)
  553 
  554 #define ATA_IDX_INSW(ch, idx, addr, count) \
  555         ATA_INSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  556 
  557 #define ATA_IDX_INSW_STRM(ch, idx, addr, count) \
  558         ATA_INSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  559 
  560 #define ATA_IDX_INSL(ch, idx, addr, count) \
  561         ATA_INSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  562 
  563 #define ATA_IDX_INSL_STRM(ch, idx, addr, count) \
  564         ATA_INSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  565 
  566 #define ATA_IDX_OUTB(ch, idx, value) \
  567         ATA_OUTB(ch->r_io[idx].res, ch->r_io[idx].offset, value)
  568 
  569 #define ATA_IDX_OUTW(ch, idx, value) \
  570         ATA_OUTW(ch->r_io[idx].res, ch->r_io[idx].offset, value)
  571 
  572 #define ATA_IDX_OUTW_STRM(ch, idx, value) \
  573         ATA_OUTW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, value)
  574 
  575 #define ATA_IDX_OUTL(ch, idx, value) \
  576         ATA_OUTL(ch->r_io[idx].res, ch->r_io[idx].offset, value)
  577 
  578 #define ATA_IDX_OUTSW(ch, idx, addr, count) \
  579         ATA_OUTSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  580 
  581 #define ATA_IDX_OUTSW_STRM(ch, idx, addr, count) \
  582         ATA_OUTSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  583 
  584 #define ATA_IDX_OUTSL(ch, idx, addr, count) \
  585         ATA_OUTSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)
  586 
  587 #define ATA_IDX_OUTSL_STRM(ch, idx, addr, count) \
  588         ATA_OUTSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count)

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