1/*- 2 * Copyright (c) 1998,1999 S�ren Schmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 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: head/sys/dev/ata/ata-all.h 51520 1999-09-21 19:50:40Z sos $ |
29 */ 30 31/* ATA register defines */ 32#define ATA_DATA 0x00 /* data register */ |
33#define ATA_ERROR 0x01 /* (R) error register */ |
34#define ATA_FEATURE 0x01 /* (W) feature register */ 35#define ATA_F_DMA 0x01 /* enable DMA */ 36#define ATA_F_OVL 0x02 /* enable overlap */ 37 38#define ATA_COUNT 0x02 /* (W) sector count */ 39#define ATA_IREASON 0x02 /* (R) interrupt reason */ 40#define ATA_I_CMD 0x01 /* cmd (1) | data (0) */ 41#define ATA_I_IN 0x02 /* read (1) | write (0) */ 42#define ATA_I_RELEASE 0x04 /* released bus (1) */ 43#define ATA_I_TAGMASK 0xf8 /* tag mask */ 44 |
45#define ATA_SECTOR 0x03 /* sector # */ 46#define ATA_CYL_LSB 0x04 /* cylinder# LSB */ 47#define ATA_CYL_MSB 0x05 /* cylinder# MSB */ |
48#define ATA_DRIVE 0x06 /* Sector/Drive/Head register */ 49#define ATA_D_LBA 0x40 /* use LBA adressing */ 50#define ATA_D_IBM 0xa0 /* 512 byte sectors, ECC */ 51 52#define ATA_CMD 0x07 /* command register */ |
53#define ATA_C_ATAPI_RESET 0x08 /* reset ATAPI device */ |
54#define ATA_C_READ 0x20 /* read command */ 55#define ATA_C_WRITE 0x30 /* write command */ |
56#define ATA_C_PACKET_CMD 0xa0 /* packet command */ 57#define ATA_C_ATAPI_IDENTIFY 0xa1 /* get ATAPI params*/ |
58#define ATA_C_READ_MULTI 0xc4 /* read multi command */ 59#define ATA_C_WRITE_MULTI 0xc5 /* write multi command */ 60#define ATA_C_SET_MULTI 0xc6 /* set multi size command */ 61#define ATA_C_READ_DMA 0xc8 /* read w/DMA command */ 62#define ATA_C_WRITE_DMA 0xca /* write w/DMA command */ |
63#define ATA_C_ATA_IDENTIFY 0xec /* get ATA params */ |
64#define ATA_C_SETFEATURES 0xef /* features command */ 65#define ATA_C_FEA_SETXFER 0x03 /* set transfer mode */ 66 67#define ATA_STATUS 0x07 /* status register */ 68#define ATA_S_ERROR 0x01 /* error */ 69#define ATA_S_INDEX 0x02 /* index */ 70#define ATA_S_CORR 0x04 /* data corrected */ 71#define ATA_S_DRQ 0x08 /* data request */ 72#define ATA_S_DSC 0x10 /* drive seek completed */ 73#define ATA_S_SERV 0x10 /* drive needs service */ 74#define ATA_S_DWF 0x20 /* drive write fault */ 75#define ATA_S_DMRD 0x20 /* DMA ready */ 76#define ATA_S_DRDY 0x40 /* drive ready */ 77#define ATA_S_BSY 0x80 /* busy */ 78 79#define ATA_ALTPORT 0x206 /* alternate Status register */ |
80#define ATA_A_IDS 0x02 /* disable interrupts */ |
81#define ATA_A_RESET 0x04 /* RESET controller */ |
82#define ATA_A_4BIT 0x08 /* 4 head bits */ |
83 84/* misc defines */ |
85#define ATA_MASTER 0x00 86#define ATA_SLAVE 0x10 87#define ATA_IOSIZE 0x08 |
88#define ATA_OP_FINISHED 0x00 89#define ATA_OP_CONTINUES 0x01 90 91/* busmaster DMA related defines */ 92#define ATA_BM_OFFSET1 0x08 93#define ATA_DMA_ENTRIES 256 94#define ATA_DMA_EOT 0x80000000 95 96#define ATA_BMCMD_PORT 0x00 97#define ATA_BMCMD_START_STOP 0x01 98#define ATA_BMCMD_WRITE_READ 0x08 99 100#define ATA_BMSTAT_PORT 0x02 |
101#define ATA_BMSTAT_ACTIVE 0x01 102#define ATA_BMSTAT_ERROR 0x02 103#define ATA_BMSTAT_INTERRUPT 0x04 |
104#define ATA_BMSTAT_MASK 0x07 |
105#define ATA_BMSTAT_DMA_MASTER 0x20 106#define ATA_BMSTAT_DMA_SLAVE 0x40 107 108#define ATA_BMDTP_PORT 0x04 109 |
110/* structure for holding DMA address data */ 111struct ata_dmaentry { |
112 u_int32_t base; 113 u_int32_t count; |
114}; 115 |
116/* ATA device DMA access modes */ 117#define ATA_WDMA2 0x22 118#define ATA_UDMA2 0x42 119#define ATA_UDMA4 0x44 120 |
121/* structure describing an ATA device */ 122struct ata_softc { 123 int32_t unit; /* unit on this controller */ 124 int32_t lun; /* logical unit # */ 125 struct device *dev; /* device handle */ 126 int32_t ioaddr; /* port addr */ 127 int32_t altioaddr; /* alternate port addr */ 128 int32_t bmaddr; /* bus master DMA port */ |
129 void *dev_softc[2]; /* ptr to devices softc's */ |
130 struct ata_dmaentry *dmatab[2]; /* DMA transfer tables */ |
131 int32_t mode[2]; /* transfer mode for devices */ 132#define ATA_MODE_PIO 0x00 133#define ATA_MODE_DMA 0x01 134#define ATA_MODE_UDMA33 0x02 135#define ATA_MODE_UDMA66 0x04 136 |
137 int32_t flags; /* controller flags */ |
138#define ATA_ATAPI_DMA_RO 0x01 139 |
140 int32_t devices; /* what is present */ 141#define ATA_ATA_MASTER 0x01 |
142#define ATA_ATA_SLAVE 0x02 143#define ATA_ATAPI_MASTER 0x04 144#define ATA_ATAPI_SLAVE 0x08 |
145 146 u_int8_t status; /* last controller status */ 147 u_int8_t error; /* last controller error */ 148 int32_t active; /* active processing request */ 149#define ATA_IDLE 0x0 150#define ATA_IMMEDIATE 0x0 151#define ATA_WAIT_INTR 0x1 152#define ATA_IGNORE_INTR 0x2 153#define ATA_ACTIVE_ATA 0x3 154#define ATA_ACTIVE_ATAPI 0x4 155 |
156 TAILQ_HEAD(, ad_request) ata_queue; /* head of ATA queue */ 157 TAILQ_HEAD(, atapi_request) atapi_queue; /* head of ATAPI queue */ 158 void *running; /* currently running request */ 159#if NAPM > 0 160 struct apmhook resume_hook; /* hook for apm */ 161#endif 162 |
163}; 164 165#define MAXATA 8 166 167extern struct ata_softc *atadevices[]; 168 169/* public prototypes */ 170void ata_start(struct ata_softc *); |
171void ata_reset(struct ata_softc *, int32_t *); 172int32_t ata_reinit(struct ata_softc *); |
173int32_t ata_wait(struct ata_softc *, int32_t, u_int8_t); 174int32_t ata_command(struct ata_softc *, int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t, int32_t); 175int32_t ata_dmainit(struct ata_softc *, int32_t, int32_t, int32_t, int32_t); 176int32_t ata_dmasetup(struct ata_softc *, int32_t, int8_t *, int32_t, int32_t); 177void ata_dmastart(struct ata_softc *, int32_t); 178int32_t ata_dmastatus(struct ata_softc *, int32_t); 179int32_t ata_dmadone(struct ata_softc *, int32_t); |
180int8_t *ata_mode2str(int32_t); |
181void bswap(int8_t *, int32_t); 182void btrim(int8_t *, int32_t); 183void bpack(int8_t *, int8_t *, int32_t); |