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freebsd-dev/sys/dev/ata/ata-all.h
Søren Schmidt 6ddce9039b Major update of the ATA RAID code, part 1: 
Overhaul of the attach/detach code and structures, there were some nasty
bugs in the old implementation. This made it possible to collapse the
ATA/ATAPI device control structures into one generic structure.

A note here, the kernel is NOT ready for detach of active devices,
it fails all over in random places, but for inactive devices it works.
However for ATA RAID this works, since the RAID abstration layer
insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the
physical disks.

Proberly detect the RAID's from the BIOS, and mark critical RAID1
arrays as such, but continue if there is enough of the mirror left
to do so.

Properly fail arrays on a live system. For RAID0 that means return EIO,
and for RAID1 it means continue on the still working part of the mirror
if possible, else return EIO.
If the state changes, log this to the console.

Allow for Promise & Highpoint controllers/arrays to coexist on the
same machine. It is not possible to distribute arrays over different
makes of controllers though.

If Promise SuperSwap enclosures are used, signal disk state on the
status LED on the front.

Misc fixes that I had lying around for various minor bugs.

Sponsored by: Advanis Inc.
2002-02-04 19:23:40 +00:00

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/*-
* Copyright (c) 1998,1999,2000,2001,2002 Søren Schmidt <sos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/* ATA register defines */
#define ATA_DATA 0x00 /* data register */
#define ATA_ERROR 0x01 /* (R) error register */
#define ATA_E_NM 0x02 /* no media */
#define ATA_E_ABORT 0x04 /* command aborted */
#define ATA_E_MCR 0x08 /* media change request */
#define ATA_E_IDNF 0x10 /* ID not found */
#define ATA_E_MC 0x20 /* media changed */
#define ATA_E_UNC 0x40 /* uncorrectable data */
#define ATA_E_ICRC 0x80 /* UDMA crc error */
#define ATA_FEATURE 0x01 /* (W) feature register */
#define ATA_F_DMA 0x01 /* enable DMA */
#define ATA_F_OVL 0x02 /* enable overlap */
#define ATA_COUNT 0x02 /* (W) sector count */
#define ATA_IREASON 0x02 /* (R) interrupt reason */
#define ATA_I_CMD 0x01 /* cmd (1) | data (0) */
#define ATA_I_IN 0x02 /* read (1) | write (0) */
#define ATA_I_RELEASE 0x04 /* released bus (1) */
#define ATA_I_TAGMASK 0xf8 /* tag mask */
#define ATA_SECTOR 0x03 /* sector # */
#define ATA_CYL_LSB 0x04 /* cylinder# LSB */
#define ATA_CYL_MSB 0x05 /* cylinder# MSB */
#define ATA_DRIVE 0x06 /* Sector/Drive/Head register */
#define ATA_D_LBA 0x40 /* use LBA addressing */
#define ATA_D_IBM 0xa0 /* 512 byte sectors, ECC */
#define ATA_CMD 0x07 /* command register */
#define ATA_C_NOP 0x00 /* NOP command */
#define ATA_C_F_FLUSHQUEUE 0x00 /* flush queued cmd's */
#define ATA_C_F_AUTOPOLL 0x01 /* start autopoll function */
#define ATA_C_ATAPI_RESET 0x08 /* reset ATAPI device */
#define ATA_C_READ 0x20 /* read command */
#define ATA_C_READ48 0x24 /* read command */
#define ATA_C_READ_DMA48 0x25 /* read w/DMA command */
#define ATA_C_READ_DMA_QUEUED48 0x26 /* read w/DMA QUEUED command */
#define ATA_C_READ_MUL48 0x29 /* read multi command */
#define ATA_C_WRITE 0x30 /* write command */
#define ATA_C_WRITE48 0x34 /* write command */
#define ATA_C_WRITE_DMA48 0x35 /* write w/DMA command */
#define ATA_C_WRITE_DMA_QUEUED48 0x36 /* write w/DMA QUEUED command */
#define ATA_C_WRITE_MUL48 0x39 /* write multi command */
#define ATA_C_PACKET_CMD 0xa0 /* packet command */
#define ATA_C_ATAPI_IDENTIFY 0xa1 /* get ATAPI params*/
#define ATA_C_SERVICE 0xa2 /* service command */
#define ATA_C_READ_MUL 0xc4 /* read multi command */
#define ATA_C_WRITE_MUL 0xc5 /* write multi command */
#define ATA_C_SET_MULTI 0xc6 /* set multi size command */
#define ATA_C_READ_DMA_QUEUED 0xc7 /* read w/DMA QUEUED command */
#define ATA_C_READ_DMA 0xc8 /* read w/DMA command */
#define ATA_C_WRITE_DMA 0xca /* write w/DMA command */
#define ATA_C_WRITE_DMA_QUEUED 0xcc /* write w/DMA QUEUED command */
#define ATA_C_SLEEP 0xe6 /* sleep command */
#define ATA_C_FLUSHCACHE 0xe7 /* flush cache to disk */
#define ATA_C_FLUSHCACHE48 0xea /* flush cache to disk */
#define ATA_C_ATA_IDENTIFY 0xec /* get ATA params */
#define ATA_C_SETFEATURES 0xef /* features command */
#define ATA_C_F_SETXFER 0x03 /* set transfer mode */
#define ATA_C_F_ENAB_WCACHE 0x02 /* enable write cache */
#define ATA_C_F_DIS_WCACHE 0x82 /* disable write cache */
#define ATA_C_F_ENAB_RCACHE 0xaa /* enable readahead cache */
#define ATA_C_F_DIS_RCACHE 0x55 /* disable readahead cache */
#define ATA_C_F_ENAB_RELIRQ 0x5d /* enable release interrupt */
#define ATA_C_F_DIS_RELIRQ 0xdd /* disable release interrupt */
#define ATA_C_F_ENAB_SRVIRQ 0x5e /* enable service interrupt */
#define ATA_C_F_DIS_SRVIRQ 0xde /* disable service interrupt */
#define ATA_STATUS 0x07 /* status register */
#define ATA_S_ERROR 0x01 /* error */
#define ATA_S_INDEX 0x02 /* index */
#define ATA_S_CORR 0x04 /* data corrected */
#define ATA_S_DRQ 0x08 /* data request */
#define ATA_S_DSC 0x10 /* drive seek completed */
#define ATA_S_SERVICE 0x10 /* drive needs service */
#define ATA_S_DWF 0x20 /* drive write fault */
#define ATA_S_DMA 0x20 /* DMA ready */
#define ATA_S_READY 0x40 /* drive ready */
#define ATA_S_BUSY 0x80 /* busy */
#define ATA_ALTSTAT 0x00 /* alternate status register */
#define ATA_ALTOFFSET 0x206 /* alternate registers offset */
#define ATA_PCCARD_ALTOFFSET 0x0e /* do for PCCARD devices */
#define ATA_A_IDS 0x02 /* disable interrupts */
#define ATA_A_RESET 0x04 /* RESET controller */
#define ATA_A_4BIT 0x08 /* 4 head bits */
/* misc defines */
#define ATA_PRIMARY 0x1f0
#define ATA_SECONDARY 0x170
#define ATA_IOSIZE 0x08
#define ATA_ALTIOSIZE 0x01
#define ATA_BMIOSIZE 0x08
#define ATA_OP_FINISHED 0x00
#define ATA_OP_CONTINUES 0x01
#define ATA_IOADDR_RID 0
#define ATA_ALTADDR_RID 1
#define ATA_BMADDR_RID 2
#define ATA_IRQ_RID 0
#define ATA_DEV(device) ((device == ATA_MASTER) ? 0 : 1)
/* busmaster DMA related defines */
#define ATA_DMA_ENTRIES 256
#define ATA_DMA_EOT 0x80000000
#define ATA_BMCMD_PORT 0x00
#define ATA_BMCMD_START_STOP 0x01
#define ATA_BMCMD_WRITE_READ 0x08
#define ATA_BMDEVSPEC_0 0x01
#define ATA_BMSTAT_PORT 0x02
#define ATA_BMSTAT_ACTIVE 0x01
#define ATA_BMSTAT_ERROR 0x02
#define ATA_BMSTAT_INTERRUPT 0x04
#define ATA_BMSTAT_MASK 0x07
#define ATA_BMSTAT_DMA_MASTER 0x20
#define ATA_BMSTAT_DMA_SLAVE 0x40
#define ATA_BMSTAT_DMA_SIMPLEX 0x80
#define ATA_BMDEVSPEC_1 0x03
#define ATA_BMDTP_PORT 0x04
/* structure for holding DMA address data */
struct ata_dmaentry {
u_int32_t base;
u_int32_t count;
};
/* structure describing an ATA/ATAPI device */
struct ata_device {
struct ata_channel *channel;
int unit; /* unit number */
#define ATA_MASTER 0x00
#define ATA_SLAVE 0x10
char *name; /* device name */
struct ata_params *param; /* ata param structure */
void *driver; /* ptr to driver for device */
int flags;
#define ATA_D_USE_CHS 0x0001
#define ATA_D_DETACHING 0x0002
#define ATA_D_MEDIA_CHANGED 0x0004
int mode; /* transfermode */
int cmd; /* last cmd executed */
void *result; /* misc data */
};
/* structure describing an ATA channel */
struct ata_channel {
struct device *dev; /* device handle */
int unit; /* channel number */
struct resource *r_io; /* io addr resource handle */
struct resource *r_altio; /* altio addr resource handle */
struct resource *r_bmio; /* bmio addr resource handle */
struct resource *r_irq; /* interrupt of this channel */
void *ih; /* interrupt handle */
int (*intr_func)(struct ata_channel *); /* interrupt function */
u_int32_t chiptype; /* pciid of controller chip */
u_int32_t alignment; /* dma engine min alignment */
int flags; /* controller flags */
#define ATA_NO_SLAVE 0x01
#define ATA_USE_16BIT 0x02
#define ATA_ATAPI_DMA_RO 0x04
#define ATA_QUEUED 0x08
#define ATA_DMA_ACTIVE 0x10
struct ata_device device[2]; /* devices on this channel */
#define MASTER 0x00
#define SLAVE 0x01
int devices; /* what is present */
#define ATA_ATA_MASTER 0x01
#define ATA_ATA_SLAVE 0x02
#define ATA_ATAPI_MASTER 0x04
#define ATA_ATAPI_SLAVE 0x08
u_int8_t status; /* last controller status */
u_int8_t error; /* last controller error */
int active; /* active processing request */
#define ATA_IDLE 0x0000
#define ATA_IMMEDIATE 0x0001
#define ATA_WAIT_INTR 0x0002
#define ATA_WAIT_READY 0x0004
#define ATA_WAIT_MASK 0x0007
#define ATA_ACTIVE 0x0010
#define ATA_ACTIVE_ATA 0x0020
#define ATA_ACTIVE_ATAPI 0x0040
#define ATA_CONTROL 0x0080
TAILQ_HEAD(, ad_request) ata_queue; /* head of ATA queue */
TAILQ_HEAD(, atapi_request) atapi_queue; /* head of ATAPI queue */
void *running; /* currently running request */
};
/* disk bay/drawer related */
#define ATA_LED_OFF 0x00
#define ATA_LED_RED 0x01
#define ATA_LED_GREEN 0x02
#define ATA_LED_ORANGE 0x03
/* externs */
extern devclass_t ata_devclass;
/* public prototypes */
int ata_probe(device_t);
int ata_attach(device_t);
int ata_detach(device_t);
int ata_resume(device_t);
void ata_start(struct ata_channel *);
void ata_reset(struct ata_channel *);
int ata_reinit(struct ata_channel *);
int ata_wait(struct ata_device *, u_int8_t);
int ata_command(struct ata_device *, u_int8_t, u_int64_t, u_int16_t, u_int8_t, int);
void ata_drawerleds(struct ata_device *, u_int8_t);
int ata_printf(struct ata_channel *, int, const char *, ...) __printflike(3, 4);
int ata_prtdev(struct ata_device *, const char *, ...) __printflike(2, 3);
void ata_set_name(struct ata_device *, char *, int);
void ata_free_name(struct ata_device *);
int ata_get_lun(u_int32_t *);
int ata_test_lun(u_int32_t *, int);
void ata_free_lun(u_int32_t *, int);
char *ata_mode2str(int);
int ata_pmode(struct ata_params *);
int ata_wmode(struct ata_params *);
int ata_umode(struct ata_params *);
int ata_find_dev(device_t, u_int32_t, u_int32_t);
void *ata_dmaalloc(struct ata_channel *, int);
void ata_dmainit(struct ata_channel *, int, int, int, int);
int ata_dmasetup(struct ata_channel *, int, struct ata_dmaentry *, caddr_t, int);
void ata_dmastart(struct ata_channel *, int, struct ata_dmaentry *, int);
int ata_dmastatus(struct ata_channel *);
int ata_dmadone(struct ata_channel *);
/* macros to hide busspace uglyness */
#define ATA_INB(res, offset) \
bus_space_read_1(rman_get_bustag((res)), \
rman_get_bushandle((res)), (offset))
#define ATA_INW(res, offset) \
bus_space_read_2(rman_get_bustag((res)), \
rman_get_bushandle((res)), (offset))
#define ATA_INL(res, offset) \
bus_space_read_4(rman_get_bustag((res)), \
rman_get_bushandle((res)), (offset))
#define ATA_INSW(res, offset, addr, count) \
bus_space_read_multi_2(rman_get_bustag((res)), \
rman_get_bushandle((res)), \
(offset), (addr), (count))
#define ATA_INSL(res, offset, addr, count) \
bus_space_read_multi_4(rman_get_bustag((res)), \
rman_get_bushandle((res)), \
(offset), (addr), (count))
#define ATA_OUTB(res, offset, value) \
bus_space_write_1(rman_get_bustag((res)), \
rman_get_bushandle((res)), (offset), (value))
#define ATA_OUTW(res, offset, value) \
bus_space_write_2(rman_get_bustag((res)), \
rman_get_bushandle((res)), (offset), (value))
#define ATA_OUTL(res, offset, value) \
bus_space_write_4(rman_get_bustag((res)), \
rman_get_bushandle((res)), (offset), (value))
#define ATA_OUTSW(res, offset, addr, count) \
bus_space_write_multi_2(rman_get_bustag((res)), \
rman_get_bushandle((res)), \
(offset), (addr), (count))
#define ATA_OUTSL(res, offset, addr, count) \
bus_space_write_multi_4(rman_get_bustag((res)), \
rman_get_bushandle((res)), \
(offset), (addr), (count))
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