patch-2.1.32 linux/drivers/scsi/seagate.c

• Lines: 104
• Date: Fri Apr 4 14:03:30 1997
• Orig file: v2.1.31/linux/drivers/scsi/seagate.c
• Orig date: Thu Mar 27 14:40:05 1997

diff -u --recursive --new-file v2.1.31/linux/drivers/scsi/seagate.c linux/drivers/scsi/seagate.c
@@ -127,6 +127,103 @@
                                            broken! */
 #endif
 
+
+/*
+	Thanks to Brian Antoine for the example code in his Messy-Loss ST-01
+		driver, and Mitsugu Suzuki for information on the ST-01
+		SCSI host.
+*/
+
+/*
+	CONTROL defines
+*/
+
+#define CMD_RST 		0x01
+#define CMD_SEL 		0x02
+#define CMD_BSY 		0x04
+#define CMD_ATTN    		0x08
+#define CMD_START_ARB		0x10
+#define CMD_EN_PARITY		0x20
+#define CMD_INTR		0x40
+#define CMD_DRVR_ENABLE		0x80
+
+/*
+	STATUS
+*/
+#ifdef SWAPSTAT
+	#define STAT_MSG		0x08
+	#define STAT_CD			0x02
+#else
+	#define STAT_MSG		0x02
+	#define STAT_CD			0x08
+#endif
+
+#define STAT_BSY		0x01
+#define STAT_IO			0x04
+#define STAT_REQ		0x10
+#define STAT_SEL		0x20
+#define STAT_PARITY		0x40
+#define STAT_ARB_CMPL		0x80
+
+/* 
+	REQUESTS
+*/
+
+#define REQ_MASK (STAT_CD |  STAT_IO | STAT_MSG)
+#define REQ_DATAOUT 0
+#define REQ_DATAIN STAT_IO
+#define REQ_CMDOUT STAT_CD
+#define REQ_STATIN (STAT_CD | STAT_IO)
+#define REQ_MSGOUT (STAT_MSG | STAT_CD)
+#define REQ_MSGIN (STAT_MSG | STAT_CD | STAT_IO)
+
+extern volatile int seagate_st0x_timeout;
+
+#ifdef PARITY
+	#define BASE_CMD CMD_EN_PARITY
+#else
+	#define BASE_CMD  0
+#endif
+
+/*
+	Debugging code
+*/
+
+#define PHASE_BUS_FREE 1
+#define PHASE_ARBITRATION 2
+#define PHASE_SELECTION 4
+#define PHASE_DATAIN 8 
+#define PHASE_DATAOUT 0x10
+#define PHASE_CMDOUT 0x20
+#define PHASE_MSGIN 0x40
+#define PHASE_MSGOUT 0x80
+#define PHASE_STATUSIN 0x100
+#define PHASE_ETC (PHASE_DATAIN | PHASE_DATA_OUT | PHASE_CMDOUT | PHASE_MSGIN | PHASE_MSGOUT | PHASE_STATUSIN)
+#define PRINT_COMMAND 0x200
+#define PHASE_EXIT 0x400
+#define PHASE_RESELECT 0x800
+#define DEBUG_FAST 0x1000
+#define DEBUG_SG   0x2000
+#define DEBUG_LINKED	0x4000
+#define DEBUG_BORKEN	0x8000
+
+/* 
+ *	Control options - these are timeouts specified in .01 seconds.
+ */
+
+/* 30, 20 work */
+#define ST0X_BUS_FREE_DELAY 25
+#define ST0X_SELECTION_DELAY 25
+
+#define eoi() __asm__("push %%eax\nmovb $0x20, %%al\noutb %%al, $0x20\npop %%eax"::)
+	
+#define SEAGATE 1	/* these determine the type of the controller */
+#define FD	2
+
+#define ST0X_ID_STR	"Seagate ST-01/ST-02"
+#define FD_ID_STR	"TMC-8XX/TMC-950"
+
+
 static int internal_command (unsigned char target, unsigned char lun,
                              const void *cmnd,
                              void *buff, int bufflen, int reselect);