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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [scsi/] [seagate.h] - Rev 1772
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/* * seagate.h Copyright (C) 1992 Drew Eckhardt * low level scsi driver header for ST01/ST02 by * Drew Eckhardt * * <drew@colorado.edu> */ #ifndef _SEAGATE_H #define SEAGATE_H /* $Header */ #ifndef ASM int seagate_st0x_detect(Scsi_Host_Template *); int seagate_st0x_command(Scsi_Cmnd *); int seagate_st0x_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); int seagate_st0x_abort(Scsi_Cmnd *); const char *seagate_st0x_info(struct Scsi_Host *); int seagate_st0x_reset(Scsi_Cmnd *, unsigned int); int seagate_st0x_proc_info(char *,char **,off_t,int,int,int); #ifndef NULL #define NULL 0 #endif #include <linux/kdev_t.h> int seagate_st0x_biosparam(Disk *, kdev_t, int*); #define SEAGATE_ST0X { NULL, NULL, NULL, seagate_st0x_proc_info, \ NULL, seagate_st0x_detect, \ NULL, \ seagate_st0x_info, seagate_st0x_command, \ seagate_st0x_queue_command, seagate_st0x_abort, \ seagate_st0x_reset, NULL, seagate_st0x_biosparam, \ 1, 7, SG_ALL, 1, 0, 0, DISABLE_CLUSTERING} #endif /* defining PARITY causes parity data to be checked */ #define PARITY /* 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 */ #define STAT_BSY 0x01 #define STAT_MSG 0x02 #define STAT_IO 0x04 #define STAT_CD 0x08 #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" #endif
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