1 /* 2 * Copyright (c) 1996 Sun Microsystems, Inc. All Rights Reserved. 3 */ 4 5 #ifndef _ATAPI_H 6 #define _ATAPI_H 7 8 #pragma ident "%Z%%M% %I% %E% SMI" 9 10 #ifdef __cplusplus 11 extern "C" { 12 #endif 13 14 #include <sys/scsi/scsi.h> 15 16 /* 17 * Additional atapi status bits (redefinitions) 18 */ 19 #define ATE_ILI 0x01 /* Illegal length indication */ 20 #define ATE_EOM 0x02 /* End of media detected */ 21 #define ATE_MCR 0x08 /* Media change requested */ 22 #define ATS_SERVICE 0x10 /* overlap operation needs service */ 23 #define ATS_SENSE_KEY 0xf0 /* 4 bit sense key -see ata_sense_table */ 24 25 #define ATS_SENSE_KEY_SHIFT 4 /* shift to get to ATS_SENSE_KEY */ 26 27 /* 28 * Status bits from ATAPI Interrupt reason register (AT_COUNT) register 29 */ 30 #define ATI_COD 0x01 /* Command or Data */ 31 #define ATI_IO 0x02 /* IO direction */ 32 #define ATI_RELEASE 0x04 /* Release for ATAPI overlap */ 33 34 /* ATAPI feature reg definitions */ 35 36 #define ATF_OVERLAP 0x02 37 38 /* 39 * ATAPI commands. 40 */ 41 #define ATC_PI_SRESET 0x08 /* ATAPI soft reset */ 42 #define ATC_PI_ID_DEV 0xa1 /* ATAPI identify device */ 43 #define ATC_PI_PKT 0xa0 /* ATAPI packet command */ 44 #define ATC_PI_SERVICE 0xa2 /* ATAPI overlap service command */ 45 46 /* 47 * ATAPI IDENTIFY_DRIVE configuration word 48 */ 49 #define ATAPI_ID_CFG_PKT_SZ 0x3 50 #define ATAPI_ID_CFG_PKT_12B 0x0 51 #define ATAPI_ID_CFG_PKT_16B 0x1 52 #define ATAPI_ID_CFG_DRQ_TYPE 0x60 53 #define ATAPI_ID_CFG_DRQ_INTR 0x20 54 #define ATAPI_ID_CFG_DEV_TYPE 0x0f00 55 #define ATAPI_ID_CFG_DEV_SHFT 8 56 57 /* 58 * ATAPI IDENTIFY_DRIVE capabilities word 59 */ 60 #define ATAPI_ID_CAP_DMA 0x0100 61 #define ATAPI_ID_CAP_OVERLAP 0x2000 62 63 /* 64 * ATAPI SET FEATURE commands 65 */ 66 #define ATAPI_FEAT_RELEASE_INTR 0x5d 67 #define ATAPI_FEAT_SERVICE_INTR 0x5e 68 69 /* 70 * ATAPI bits 71 */ 72 #define ATAPI_SIG_HI 0xeb /* in high cylinder register */ 73 #define ATAPI_SIG_LO 0x14 /* in low cylinder register */ 74 75 #define ATAPIDRV(X) ((X)->ad_flags & AD_ATAPI) 76 #define ATAPIPKT(X) ((X)->ap_flags & AP_ATAPI) 77 78 #define ATAPI_SECTOR_SIZE 2048 79 #define ATAPI_MAX_BYTES_PER_DRQ 0xf800 /* 16 bits - 2KB ie 62KB */ 80 #define ATAPI_HEADS 64 81 #define ATAPI_SECTORS_PER_TRK 32 82 83 /* 84 * Useful macros 85 */ 86 #define TRAN2CTL(tran) ((struct ata_controller *)((tran)->tran_hba_private)) 87 #define ADDR2CTL(ap) (TRAN2CTL(ADDR2TRAN(ap))) 88 89 #define SPKT2APKT(spkt) (GCMD2APKT(PKTP2GCMDP(spkt))) 90 #define APKT2SPKT(apkt) (GCMDP2PKTP(APKT2GCMD(apkt))) 91 92 #define SADR2CHNO(ap) (((ap)->a_target > 1) ? 1 : 0) 93 94 95 /* 96 * public function prototypes 97 */ 98 int atapi_init(struct ata_controller *ata_ctlp); 99 void atapi_destroy(struct ata_controller *ata_ctlp); 100 int atapi_init_drive(struct ata_drive *ata_drvp); 101 void atapi_destroy_drive(struct ata_drive *ata_drvp); 102 103 int atapi_id(ddi_acc_handle_t handle, uint8_t *ioaddr, ushort_t *buf); 104 int atapi_signature(ddi_acc_handle_t handle, uint8_t *ioaddr); 105 106 int atapi_reset_drive(struct ata_drive *ata_drvp); 107 108 int atapi_ccballoc(gtgt_t *gtgtp, gcmd_t *gcmdp, int cmdlen, 109 int statuslen, int tgtlen, int ccblen); 110 void atapi_ccbfree(gcmd_t *gcmdp); 111 112 #ifdef DSC_OVERLAP_SUPPORT 113 void atapi_dsc_poll(struct ata_drive *ata_drvp); 114 #endif 115 116 #ifdef __cplusplus 117 } 118 #endif 119 120 #endif /* _ATAPI_H */ 121