diff options
Diffstat (limited to 'linux/src/drivers/scsi/seagate.h')
| -rw-r--r-- | linux/src/drivers/scsi/seagate.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/linux/src/drivers/scsi/seagate.h b/linux/src/drivers/scsi/seagate.h new file mode 100644 index 0000000..da18dbe --- /dev/null +++ b/linux/src/drivers/scsi/seagate.h @@ -0,0 +1,139 @@ +/* + * 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 + |