drivers/scsi/aha1542.h

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 1 #ifndef _AHA1542_H
 2
 3 /* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $
 4  *
 5  * Header file for the adaptec 1542 driver for Linux
 6  *
 7  * $Log: aha1542.h,v $
 8  * Revision 1.1 1992/07/24 06:27:38 root
 9  * Initial revision
 10  *
 11  * Revision 1.2 1992/07/04 18:41:49 root
 12  * Replaced distribution with current drivers
 13  *
 14  * Revision 1.3 1992/06/23 23:58:20 root
 15  * Fixes.
 16  *
 17  * Revision 1.2 1992/05/26 22:13:23 root
 18  * Changed bug that prevented DMA above first 2 mbytes.
 19  *
 20  * Revision 1.1 1992/05/22 21:00:29 root
 21  * Initial revision
 22  *
 23  * Revision 1.1 1992/04/24 18:01:50 root
 24  * Initial revision
 25  *
 26  * Revision 1.1 1992/04/02 03:23:13 drew
 27  * Initial revision
 28  *
 29  * Revision 1.3 1992/01/27 14:46:29 tthorn
 30  * *** empty log message ***
 31  *
 32  */
 33
 34 #include <linux/types.h>
 35 #include <linux/kdev_t.h>
 36
 37 /* I/O Port interface 4.2 */
 38 /* READ */
 39 #define STATUS(base) base
 40 #define STST 0x80/* Self Test in Progress */
 41 #define DIAGF 0x40/* Internal Diagnostic Failure */
 42 #define INIT 0x20/* Mailbox Initialization Required */
 43 #define IDLE 0x10/* SCSI Host Adapter Idle */
 44 #define CDF 0x08/* Command/Data Out Port Full */
 45 #define DF 0x04/* Data In Port Full */
 46 #define INVDCMD 0x01/* Invalid H A Command */
 47 #define STATMASK 0xfd/* 0x02 is reserved */
 48
 49 #define INTRFLAGS(base) (STATUS(base)+2)
 50 #define ANYINTR 0x80/* Any Interrupt */
 51 #define SCRD 0x08/* SCSI Reset Detected */
 52 #define HACC 0x04/* HA Command Complete */
 53 #define MBOA 0x02/* MBO Empty */
 54 #define MBIF 0x01/* MBI Full */
 55 #define INTRMASK 0x8f
 56
 57 /* WRITE */
 58 #define CONTROL(base) STATUS(base)
 59 #define HRST 0x80/* Hard Reset */
 60 #define SRST 0x40/* Soft Reset */
 61 #define IRST 0x20/* Interrupt Reset */
 62 #define SCRST 0x10/* SCSI Bus Reset */
 63
 64 /* READ/WRITE */
 65 #define DATA(base) (STATUS(base)+1)
 66 #define CMD_NOP 0x00/* No Operation */
 67 #define CMD_MBINIT 0x01/* Mailbox Initialization */
 68 #define CMD_START_SCSI 0x02/* Start SCSI Command */
 69 #define CMD_INQUIRY 0x04/* Adapter Inquiry */
 70 #define CMD_EMBOI 0x05/* Enable MailBox Out Interrupt */
 71 #define CMD_BUSON_TIME 0x07/* Set Bus-On Time */
 72 #define CMD_BUSOFF_TIME 0x08/* Set Bus-Off Time */
 73 #define CMD_DMASPEED 0x09/* Set AT Bus Transfer Speed */
 74 #define CMD_RETDEVS 0x0a/* Return Installed Devices */
 75 #define CMD_RETCONF 0x0b/* Return Configuration Data */
 76 #define CMD_RETSETUP 0x0d/* Return Setup Data */
 77 #define CMD_ECHO 0x1f/* ECHO Command Data */
 78
 79 #define CMD_EXTBIOS 0x28/* Return extend bios information only 1542C */
 80 #define CMD_MBENABLE 0x29/* Set Mailbox Interface enable only 1542C */
 81
 82 /* Mailbox Definition 5.2.1 and 5.2.2 */
 83 struct mailbox {
 84  unchar status;/* Command/Status */
 85  unchar ccbptr[3];/* msb, .., lsb */
 86 };
 87
 88 /* This is used with scatter-gather */
 89 struct chain {
 90  unchar datalen[3];/* Size of this part of chain */
 91  unchar dataptr[3];/* Location of data */
 92 };
 93
 94 /* These belong in scsi.h also */
 95 #define any2scsi(up, p) \
 96 (up)[0] = (((unsigned long)(p)) >> 16) ; \
 97 (up)[1] = (((unsigned long)(p)) >> 8); \
 98 (up)[2] = ((unsigned long)(p));
 99
 100 #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
 101
 102 #define xany2scsi(up, p) \
 103 (up)[0] = ((long)(p)) >> 24; \
 104 (up)[1] = ((long)(p)) >> 16; \
 105 (up)[2] = ((long)(p)) >> 8; \
 106 (up)[3] = ((long)(p));
 107
 108 #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
 109  + (((long)(up)[2]) << 8) + ((long)(up)[3]) )
 110
 111 #define MAX_CDB 12
 112 #define MAX_SENSE 14
 113
 114 struct ccb {/* Command Control Block 5.3 */
 115  unchar op;/* Command Control Block Operation Code */
 116  unchar idlun;/* op=0,2:Target Id, op=1:Initiator Id */
 117 /* Outbound data transfer, length is checked*/
 118 /* Inbound data transfer, length is checked */
 119 /* Logical Unit Number */
 120  unchar cdblen;/* SCSI Command Length */
 121  unchar rsalen;/* Request Sense Allocation Length/Disable */
 122  unchar datalen[3];/* Data Length (msb, .., lsb) */
 123  unchar dataptr[3];/* Data Pointer */
 124  unchar linkptr[3];/* Link Pointer */
 125  unchar commlinkid;/* Command Linking Identifier */
 126  unchar hastat;/* Host Adapter Status (HASTAT) */
 127  unchar tarstat;/* Target Device Status */
 128  unchar reserved[2];
 129  unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
 130 /* REQUEST SENSE */
 131 };
 132
 133 intaha1542_detect(Scsi_Host_Template *);
 134 intaha1542_command(Scsi_Cmnd *);
 135 intaha1542_queuecommand(Scsi_Cmnd *,void(*done)(Scsi_Cmnd *));
 136 intaha1542_abort(Scsi_Cmnd * SCpnt);
 137 intaha1542_bus_reset(Scsi_Cmnd * SCpnt);
 138 intaha1542_dev_reset(Scsi_Cmnd * SCpnt);
 139 intaha1542_host_reset(Scsi_Cmnd * SCpnt);
 140 externintaha1542_old_abort(Scsi_Cmnd * SCpnt);
 141 intaha1542_old_reset(Scsi_Cmnd *,unsigned int);
 142 intaha1542_biosparam(Disk *, kdev_t,int*);
 143
 144 #define AHA1542_MAILBOXES 8
 145 #define AHA1542_SCATTER 16
 146 #define AHA1542_CMDLUN 1
 147
 148 #ifndef NULL
 149 #define NULL 0
 150 #endif
 151
 152 externstruct proc_dir_entry proc_scsi_aha1542;
 153
 154 #define AHA1542 { proc_dir: &proc_scsi_aha1542, \
 155  name:"Adaptec 1542", \
 156  detect: aha1542_detect, \
 157  command: aha1542_command, \
 158  queuecommand: aha1542_queuecommand, \
 159  abort: aha1542_old_abort, \
 160  reset: aha1542_old_reset, \
 161  eh_abort_handler: aha1542_abort, \
 162  eh_device_reset_handler: aha1542_dev_reset, \
 163  eh_bus_reset_handler: aha1542_bus_reset, \
 164  eh_host_reset_handler: aha1542_host_reset, \
 165  bios_param: aha1542_biosparam, \
 166  can_queue: AHA1542_MAILBOXES, \
 167  this_id: 7, \
 168  sg_tablesize: AHA1542_SCATTER, \
 169  cmd_per_lun: AHA1542_CMDLUN, \
 170  unchecked_isa_dma: 1, \
 171  use_clustering: ENABLE_CLUSTERING, \
 172  use_new_eh_code: 1}
 173
 174 #endif