2e526e2ac0
interrupts are enabled, this kills the last "unwanted interrupts"
(and there is no ugly hacks like in the old driver to avoid them).
COmmand interrupt devices are now supported, this applies mostly
to older CDROM's and apparently also the ZIP.
Fixed problems:
Number of total sectors wrong on some older drives.
Fixed by not using the LBA size unless we know its valid.
There has also been more general code clenaups, some reorgs also.
118 lines
4.7 KiB
C
118 lines
4.7 KiB
C
/*-
|
|
* Copyright (c) 1998,1999 Søren Schmidt
|
|
* 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.
|
|
*
|
|
* $Id: ata-all.h,v 1.2 1999/03/03 21:10:29 sos Exp $
|
|
*/
|
|
|
|
/* ATA register defines */
|
|
#define ATA_DATA 0x00 /* data register */
|
|
#define ATA_ERROR 0x01 /* (R) error register */
|
|
#define ATA_PRECOMP 0x01 /* (W) precompensation */
|
|
#define ATA_COUNT 0x02 /* sector count */
|
|
#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_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_IBM 0xa0 /* 512 byte sectors, ECC */
|
|
|
|
#define ATA_CMD 0x07 /* command register */
|
|
#define ATA_C_ATA_IDENTIFY 0xec /* get ATA params */
|
|
#define ATA_C_ATAPI_IDENTIFY 0xa1 /* get ATAPI params*/
|
|
#define ATA_C_READ 0x20 /* read command */
|
|
#define ATA_C_WRITE 0x30 /* write command */
|
|
#define ATA_C_READ_MULTI 0xc4 /* read multi command */
|
|
#define ATA_C_WRITE_MULTI 0xc5 /* write multi command */
|
|
#define ATA_C_SET_MULTI 0xc6 /* set multi size command */
|
|
#define ATA_C_PACKET_CMD 0xa0 /* set multi size command */
|
|
|
|
#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_DWF 0x20 /* drive write fault */
|
|
#define ATA_S_DRDY 0x40 /* drive ready */
|
|
#define ATA_S_BSY 0x80 /* busy */
|
|
|
|
#define ATA_ALTPORT 0x206 /* alternate Status register */
|
|
#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_MASTER 0x00
|
|
#define ATA_SLAVE 0x10
|
|
#define ATA_IOSIZE 0x08
|
|
|
|
/* Devices types */
|
|
#define ATA_ATA_MASTER 0x01
|
|
#define ATA_ATA_SLAVE 0x02
|
|
#define ATA_ATAPI_MASTER 0x04
|
|
#define ATA_ATAPI_SLAVE 0x08
|
|
|
|
/* Structure describing an ATA device */
|
|
struct ata_softc {
|
|
u_int32_t unit; /* this instance's number */
|
|
u_int32_t ioaddr; /* port addr */
|
|
u_int32_t altioaddr; /* alternate port addr */
|
|
void *dmacookie; /* handle for DMA services */
|
|
int32_t flags; /* controller flags */
|
|
#define ATA_F_SLAVE_ONLY 0x0001
|
|
|
|
int32_t devices; /* what is present */
|
|
u_int8_t status; /* last controller status */
|
|
u_int8_t error; /* last controller error */
|
|
int32_t active; /* active processing request */
|
|
#define ATA_IDLE 0x0
|
|
#define ATA_IMMEDIATE 0x0
|
|
#define ATA_WAIT_INTR 0x1
|
|
#define ATA_IGNORE_INTR 0x2
|
|
#define ATA_ACTIVE_ATA 0x3
|
|
#define ATA_ACTIVE_ATAPI 0x4
|
|
|
|
struct buf_queue_head ata_queue; /* head of ATA queue */
|
|
TAILQ_HEAD(, atapi_request) atapi_queue; /* head of ATAPI queue */
|
|
};
|
|
|
|
#define MAXATA 8
|
|
|
|
extern struct ata_softc *atadevices[];
|
|
|
|
/* public prototypes */
|
|
void ata_start(struct ata_softc *);
|
|
int32_t ata_wait(struct ata_softc *, u_int8_t);
|
|
int32_t ata_command(struct ata_softc *, int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t, int32_t);
|
|
void bswap(int8_t *, int32_t);
|
|
void btrim(int8_t *, int32_t);
|
|
void bpack(int8_t *, int8_t *, int32_t);
|
|
|