1 #ifndef _AHA1542_H_ 2 #define _AHA1542_H_ 3 4 #include <linux/types.h> 5 6 /* I/O Port interface 4.2 */ 7 /* READ */ 8 #define STATUS(base) base 9 #define STST BIT(7) /* Self Test in Progress */ 10 #define DIAGF BIT(6) /* Internal Diagnostic Failure */ 11 #define INIT BIT(5) /* Mailbox Initialization Required */ 12 #define IDLE BIT(4) /* SCSI Host Adapter Idle */ 13 #define CDF BIT(3) /* Command/Data Out Port Full */ 14 #define DF BIT(2) /* Data In Port Full */ 15 /* BIT(1) is reserved */ 16 #define INVDCMD BIT(0) /* Invalid H A Command */ 17 #define STATMASK (STST | DIAGF | INIT | IDLE | CDF | DF | INVDCMD) 18 19 #define INTRFLAGS(base) (STATUS(base)+2) 20 #define ANYINTR BIT(7) /* Any Interrupt */ 21 #define SCRD BIT(3) /* SCSI Reset Detected */ 22 #define HACC BIT(2) /* HA Command Complete */ 23 #define MBOA BIT(1) /* MBO Empty */ 24 #define MBIF BIT(0) /* MBI Full */ 25 #define INTRMASK (ANYINTR | SCRD | HACC | MBOA | MBIF) 26 27 /* WRITE */ 28 #define CONTROL(base) STATUS(base) 29 #define HRST BIT(7) /* Hard Reset */ 30 #define SRST BIT(6) /* Soft Reset */ 31 #define IRST BIT(5) /* Interrupt Reset */ 32 #define SCRST BIT(4) /* SCSI Bus Reset */ 33 34 /* READ/WRITE */ 35 #define DATA(base) (STATUS(base)+1) 36 #define CMD_NOP 0x00 /* No Operation */ 37 #define CMD_MBINIT 0x01 /* Mailbox Initialization */ 38 #define CMD_START_SCSI 0x02 /* Start SCSI Command */ 39 #define CMD_INQUIRY 0x04 /* Adapter Inquiry */ 40 #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */ 41 #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */ 42 #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */ 43 #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */ 44 #define CMD_RETDEVS 0x0a /* Return Installed Devices */ 45 #define CMD_RETCONF 0x0b /* Return Configuration Data */ 46 #define CMD_RETSETUP 0x0d /* Return Setup Data */ 47 #define CMD_ECHO 0x1f /* ECHO Command Data */ 48 49 #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */ 50 #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */ 51 52 /* Mailbox Definition 5.2.1 and 5.2.2 */ 53 struct mailbox { 54 u8 status; /* Command/Status */ 55 u8 ccbptr[3]; /* msb, .., lsb */ 56 }; 57 58 /* This is used with scatter-gather */ 59 struct chain { 60 u8 datalen[3]; /* Size of this part of chain */ 61 u8 dataptr[3]; /* Location of data */ 62 }; 63 64 /* These belong in scsi.h also */ 65 static inline void any2scsi(u8 *p, u32 v) 66 { 67 p[0] = v >> 16; 68 p[1] = v >> 8; 69 p[2] = v; 70 } 71 72 #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) ) 73 74 #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \ 75 + (((long)(up)[2]) << 8) + ((long)(up)[3]) ) 76 77 #define MAX_CDB 12 78 #define MAX_SENSE 14 79 80 struct ccb { /* Command Control Block 5.3 */ 81 u8 op; /* Command Control Block Operation Code */ 82 u8 idlun; /* op=0,2:Target Id, op=1:Initiator Id */ 83 /* Outbound data transfer, length is checked*/ 84 /* Inbound data transfer, length is checked */ 85 /* Logical Unit Number */ 86 u8 cdblen; /* SCSI Command Length */ 87 u8 rsalen; /* Request Sense Allocation Length/Disable */ 88 u8 datalen[3]; /* Data Length (msb, .., lsb) */ 89 u8 dataptr[3]; /* Data Pointer */ 90 u8 linkptr[3]; /* Link Pointer */ 91 u8 commlinkid; /* Command Linking Identifier */ 92 u8 hastat; /* Host Adapter Status (HASTAT) */ 93 u8 tarstat; /* Target Device Status */ 94 u8 reserved[2]; 95 u8 cdb[MAX_CDB+MAX_SENSE]; /* SCSI Command Descriptor Block */ 96 /* REQUEST SENSE */ 97 }; 98 99 #define AHA1542_REGION_SIZE 4 100 #define AHA1542_MAILBOXES 8 101 102 #endif /* _AHA1542_H_ */ 103