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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _AHA1542_H_ #define _AHA1542_H_ #include <linux/types.h> /* I/O Port interface 4.2 */ /* READ */ #define STATUS(base) base #define STST BIT(7) /* Self Test in Progress */ #define DIAGF BIT(6) /* Internal Diagnostic Failure */ #define INIT BIT(5) /* Mailbox Initialization Required */ #define IDLE BIT(4) /* SCSI Host Adapter Idle */ #define CDF BIT(3) /* Command/Data Out Port Full */ #define DF BIT(2) /* Data In Port Full */ /* BIT(1) is reserved */ #define INVDCMD BIT(0) /* Invalid H A Command */ #define STATMASK (STST | DIAGF | INIT | IDLE | CDF | DF | INVDCMD) #define INTRFLAGS(base) (STATUS(base)+2) #define ANYINTR BIT(7) /* Any Interrupt */ #define SCRD BIT(3) /* SCSI Reset Detected */ #define HACC BIT(2) /* HA Command Complete */ #define MBOA BIT(1) /* MBO Empty */ #define MBIF BIT(0) /* MBI Full */ #define INTRMASK (ANYINTR | SCRD | HACC | MBOA | MBIF) /* WRITE */ #define CONTROL(base) STATUS(base) #define HRST BIT(7) /* Hard Reset */ #define SRST BIT(6) /* Soft Reset */ #define IRST BIT(5) /* Interrupt Reset */ #define SCRST BIT(4) /* SCSI Bus Reset */ /* READ/WRITE */ #define DATA(base) (STATUS(base)+1) #define CMD_NOP 0x00 /* No Operation */ #define CMD_MBINIT 0x01 /* Mailbox Initialization */ #define CMD_START_SCSI 0x02 /* Start SCSI Command */ #define CMD_INQUIRY 0x04 /* Adapter Inquiry */ #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */ #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */ #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */ #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */ #define CMD_RETDEVS 0x0a /* Return Installed Devices */ #define CMD_RETCONF 0x0b /* Return Configuration Data */ #define CMD_RETSETUP 0x0d /* Return Setup Data */ #define CMD_ECHO 0x1f /* ECHO Command Data */ #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */ #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */ /* Mailbox Definition 5.2.1 and 5.2.2 */ struct mailbox { u8 status; /* Command/Status */ u8 ccbptr[3]; /* msb, .., lsb */ }; /* This is used with scatter-gather */ struct chain { u8 datalen[3]; /* Size of this part of chain */ u8 dataptr[3]; /* Location of data */ }; /* These belong in scsi.h also */ static inline void any2scsi(u8 *p, u32 v) { p[0] = v >> 16; p[1] = v >> 8; p[2] = v; } #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) ) #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \ + (((long)(up)[2]) << 8) + ((long)(up)[3]) ) #define MAX_CDB 12 #define MAX_SENSE 14 /* Command Control Block (CCB), 5.3 */ struct ccb { u8 op; /* Command Control Block Operation Code: */ /* 0x00: SCSI Initiator CCB, 0x01: SCSI Target CCB, */ /* 0x02: SCSI Initiator CCB with Scatter/Gather, */ /* 0x81: SCSI Bus Device Reset CCB */ u8 idlun; /* Address and Direction Control: */ /* Bits 7-5: op=0, 2: Target ID, op=1: Initiator ID */ /* Bit 4: Outbound data transfer, length is checked */ /* Bit 3: Inbound data transfer, length is checked */ /* Bits 2-0: Logical Unit Number */ u8 cdblen; /* SCSI Command Length */ u8 rsalen; /* Request Sense Allocation Length/Disable Auto Sense */ u8 datalen[3]; /* Data Length (MSB, ..., LSB) */ u8 dataptr[3]; /* Data Pointer (MSB, ..., LSB) */ u8 linkptr[3]; /* Link Pointer (MSB, ..., LSB) */ u8 commlinkid; /* Command Linking Identifier */ u8 hastat; /* Host Adapter Status (HASTAT) */ u8 tarstat; /* Target Device Status (TARSTAT) */ u8 reserved[2]; u8 cdb[MAX_CDB + MAX_SENSE]; /* SCSI Command Descriptor Block */ /* followed by the Auto Sense data */ }; #define AHA1542_REGION_SIZE 4 #define AHA1542_MAILBOXES 8 #endif /* _AHA1542_H_ */ |