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drivers/scsi/aha1542.h
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/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _AHA1542_H_ #define _AHA1542_H_ |
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#include <linux/types.h> /* I/O Port interface 4.2 */ /* READ */ #define STATUS(base) base |
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#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) |
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#define INTRFLAGS(base) (STATUS(base)+2) |
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#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) |
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/* WRITE */ #define CONTROL(base) STATUS(base) |
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#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 */ |
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/* 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 { |
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u8 status; /* Command/Status */ u8 ccbptr[3]; /* msb, .., lsb */ |
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}; /* This is used with scatter-gather */ struct chain { |
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u8 datalen[3]; /* Size of this part of chain */ u8 dataptr[3]; /* Location of data */ |
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}; /* 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]) ) |
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#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 |
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struct ccb { /* Command Control Block 5.3 */ u8 op; /* Command Control Block Operation Code */ u8 idlun; /* op=0,2:Target Id, op=1:Initiator Id */ /* Outbound data transfer, length is checked*/ /* Inbound data transfer, length is checked */ /* Logical Unit Number */ u8 cdblen; /* SCSI Command Length */ u8 rsalen; /* Request Sense Allocation Length/Disable */ u8 datalen[3]; /* Data Length (msb, .., lsb) */ u8 dataptr[3]; /* Data Pointer */ u8 linkptr[3]; /* Link Pointer */ u8 commlinkid; /* Command Linking Identifier */ u8 hastat; /* Host Adapter Status (HASTAT) */ u8 tarstat; /* Target Device Status */ u8 reserved[2]; u8 cdb[MAX_CDB+MAX_SENSE]; /* SCSI Command Descriptor Block */ /* REQUEST SENSE */ |
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}; |
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#define AHA1542_REGION_SIZE 4 |
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#define AHA1542_MAILBOXES 8 |
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#endif /* _AHA1542_H_ */ |