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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _ATAPI_H
#define _ATAPI_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* Additional atapi status bits (redefinitions)
*/
#define ATE_ILI 0x01 /* Illegal length indication */
#define ATE_EOM 0x02 /* End of media detected */
#define ATE_MCR 0x08 /* Media change requested */
#define ATS_SERVICE 0x10 /* overlap operation needs service */
#define ATS_SENSE_KEY 0xf0 /* 4 bit sense key -see ata_sense_table */
#define ATS_SENSE_KEY_SHIFT 4 /* shift to get to ATS_SENSE_KEY */
/*
* Status bits from ATAPI Interrupt reason register (AT_COUNT) register
*/
#define ATI_COD 0x01 /* Command or Data */
#define ATI_IO 0x02 /* IO direction */
#define ATI_RELEASE 0x04 /* Release for ATAPI overlap */
/* ATAPI feature reg definitions */
#define ATF_OVERLAP 0x02
/*
* ATAPI IDENTIFY_DRIVE configuration word
*/
#define ATAPI_ID_CFG_PKT_SZ 0x3
#define ATAPI_ID_CFG_PKT_12B 0x0
#define ATAPI_ID_CFG_PKT_16B 0x1
#define ATAPI_ID_CFG_DRQ_TYPE 0x60
#define ATAPI_ID_CFG_DRQ_INTR 0x20
#define ATAPI_ID_CFG_DEV_TYPE 0x0f00
#define ATAPI_ID_CFG_DEV_SHFT 8
/*
* ATAPI IDENTIFY_DRIVE capabilities word
*/
#define ATAPI_ID_CAP_DMA 0x0100
#define ATAPI_ID_CAP_OVERLAP 0x2000
/* ATAPI SET FEATURE commands */
#define ATAPI_FEAT_RELEASE_INTR 0x5d
#define ATAPI_FEAT_SERVICE_INTR 0x5e
/*
* ATAPI bits
*/
#define ATAPI_SIG_HI 0xeb /* in high cylinder register */
#define ATAPI_SIG_LO 0x14 /* in low cylinder register */
#define ATAPI_SECTOR_SIZE 2048
#define ATAPI_MAX_BYTES_PER_DRQ 0xf800 /* 16 bits - 2KB ie 62KB */
#define ATAPI_HEADS 64
#define ATAPI_SECTORS_PER_TRK 32
/* Useful macros */
#define TRAN2CTL(tran) ((ata_ctl_t *)((tran)->tran_hba_private))
#define ADDR2CTL(ap) (TRAN2CTL(ADDR2TRAN(ap)))
#define SPKT2APKT(spkt) (GCMD2APKT(PKTP2GCMDP(spkt)))
#define APKT2SPKT(apkt) (GCMDP2PKTP(APKT2GCMD(apkt)))
/* public function prototypes */
int atapi_attach(ata_ctl_t *ata_ctlp);
void atapi_detach(ata_ctl_t *ata_ctlp);
void atapi_init_arq(ata_ctl_t *ata_ctlp);
int atapi_init_drive(ata_drv_t *ata_drvp);
void atapi_uninit_drive(ata_drv_t *ata_drvp);
int atapi_id(ddi_acc_handle_t io_hdl1, caddr_t ioaddr1,
ddi_acc_handle_t io_hdl2, caddr_t ioaddr2, struct ata_id *buf);
int atapi_signature(ddi_acc_handle_t io_hdl, caddr_t ioaddr);
int atapi_ccballoc(gtgt_t *gtgtp, gcmd_t *gcmdp, int cmdlen,
int statuslen, int tgtlen, int ccblen);
void atapi_ccbfree(gcmd_t *gcmdp);
int atapi_fsm_intr(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp,
ata_pkt_t *ata_pktp);
int atapi_fsm_start(ata_ctl_t *ata_ctlp, ata_drv_t *ata_drvp,
ata_pkt_t *ata_pktp);
void atapi_fsm_reset(ata_ctl_t *ata_ctlp);
#ifdef __cplusplus
}
#endif
#endif /* _ATAPI_H */
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