/* $OpenBSD: btreg.h,v 1.5 1997/11/07 08:06:43 niklas Exp $ */ typedef u_int8_t physaddr[4]; typedef u_int8_t physlen[4]; #define ltophys _lto4l #define phystol _4ltol /* * I/O port offsets */ #define BT_CTRL_PORT 0 /* control (wo) */ #define BT_STAT_PORT 0 /* status (ro) */ #define BT_CMD_PORT 1 /* command (wo) */ #define BT_DATA_PORT 1 /* data (ro) */ #define BT_INTR_PORT 2 /* interrupt status (ro) */ /* * BT_CTRL bits */ #define BT_CTRL_HRST 0x80 /* Hardware reset */ #define BT_CTRL_SRST 0x40 /* Software reset */ #define BT_CTRL_IRST 0x20 /* Interrupt reset */ #define BT_CTRL_SCRST 0x10 /* SCSI bus reset */ /* * BT_STAT bits */ #define BT_STAT_STST 0x80 /* Self test in Progress */ #define BT_STAT_DIAGF 0x40 /* Diagnostic Failure */ #define BT_STAT_INIT 0x20 /* Mbx Init required */ #define BT_STAT_IDLE 0x10 /* Host Adapter Idle */ #define BT_STAT_CDF 0x08 /* cmd/data out port full */ #define BT_STAT_DF 0x04 /* Data in port full */ #define BT_STAT_INVDCMD 0x01 /* Invalid command */ /* * BT_CMD opcodes */ #define BT_NOP 0x00 /* No operation */ #define BT_MBX_INIT 0x01 /* Mbx initialization */ #define BT_START_SCSI 0x02 /* start scsi command */ #define BT_INQUIRE_REVISION 0x04 /* Adapter Inquiry */ #define BT_MBO_INTR_EN 0x05 /* Enable MBO available interrupt */ #if 0 #define BT_SEL_TIMEOUT_SET 0x06 /* set selection time-out */ #define BT_BUS_ON_TIME_SET 0x07 /* set bus-on time */ #define BT_BUS_OFF_TIME_SET 0x08 /* set bus-off time */ #define BT_SPEED_SET 0x09 /* set transfer speed */ #endif #define BT_INQUIRE_DEVICES 0x0a /* return installed devices 0-7 */ #define BT_INQUIRE_CONFIG 0x0b /* return configuration data */ #define BT_TARGET_EN 0x0c /* enable target mode */ #define BT_INQUIRE_SETUP 0x0d /* return setup data */ #define BT_ECHO 0x1e /* Echo command data */ #define BT_INQUIRE_DEVICES_2 0x23 /* return installed devices 8-15 */ #define BT_MBX_INIT_EXTENDED 0x81 /* Mbx initialization */ #define BT_INQUIRE_REVISION_3 0x84 /* Get 3rd firmware version byte */ #define BT_INQUIRE_REVISION_4 0x85 /* Get 4th firmware version byte */ #define BT_INQUIRE_MODEL 0x8b /* Get hardware ID and revision */ #define BT_INQUIRE_PERIOD 0x8c /* Get synchronous period */ #define BT_INQUIRE_EXTENDED 0x8d /* Adapter Setup Inquiry */ #define BT_ROUND_ROBIN 0x8f /* Enable/Disable(default) round robin */ /* * BT_INTR bits */ #define BT_INTR_ANYINTR 0x80 /* Any interrupt */ #define BT_INTR_SCRD 0x08 /* SCSI reset detected */ #define BT_INTR_HACC 0x04 /* Command complete */ #define BT_INTR_MBOA 0x02 /* MBX out empty */ #define BT_INTR_MBIF 0x01 /* MBX in full */ struct bt_mbx_out { physaddr ccb_addr; u_char dummy[3]; u_char cmd; }; struct bt_mbx_in { physaddr ccb_addr; u_char dummy[3]; u_char stat; }; /* * mbo.cmd values */ #define BT_MBO_FREE 0x0 /* MBO entry is free */ #define BT_MBO_START 0x1 /* MBO activate entry */ #define BT_MBO_ABORT 0x2 /* MBO abort entry */ /* * mbi.stat values */ #define BT_MBI_FREE 0x0 /* MBI entry is free */ #define BT_MBI_OK 0x1 /* completed without error */ #define BT_MBI_ABORT 0x2 /* aborted ccb */ #define BT_MBI_UNKNOWN 0x3 /* Tried to abort invalid CCB */ #define BT_MBI_ERROR 0x4 /* Completed with error */ #if defined(BIG_DMA) WARNING...THIS WON'T WORK(won't fit on 1 page) #if 0 #define BT_NSEG 2048 /* Number of scatter gather segments - to much vm */ #endif #define BT_NSEG 128 #else #define BT_NSEG 33 #endif /* BIG_DMA */ struct bt_scat_gath { physlen seg_len; physaddr seg_addr; }; struct bt_ccb { u_char opcode; u_char:3, data_in:1, data_out:1,:3; u_char scsi_cmd_length; u_char req_sense_length; /*------------------------------------longword boundary */ physlen data_length; /*------------------------------------longword boundary */ physaddr data_addr; /*------------------------------------longword boundary */ u_char dummy1[2]; u_char host_stat; u_char target_stat; /*------------------------------------longword boundary */ u_char target; u_char lun; struct scsi_generic scsi_cmd; u_char dummy2[1]; u_char link_id; /*------------------------------------longword boundary */ physaddr link_addr; /*------------------------------------longword boundary */ physaddr sense_ptr; /*-----end of HW fields-----------------------longword boundary */ struct scsi_sense_data scsi_sense; /*------------------------------------longword boundary */ struct bt_scat_gath scat_gath[BT_NSEG]; /*------------------------------------longword boundary */ TAILQ_ENTRY(bt_ccb) chain; struct bt_ccb *nexthash; long hashkey; struct scsi_xfer *xs; /* the scsi_xfer for this cmd */ int flags; #define CCB_ALLOC 0x01 #define CCB_ABORT 0x02 #ifdef BTDIAG #define CCB_SENDING 0x04 #endif int timeout; }; /* * opcode fields */ #define BT_INITIATOR_CCB 0x00 /* SCSI Initiator CCB */ #define BT_TARGET_CCB 0x01 /* SCSI Target CCB */ #define BT_INIT_SCAT_GATH_CCB 0x02 /* SCSI Initiator with scattter gather */ #define BT_RESET_CCB 0x81 /* SCSI Bus reset */ /* * bt_ccb.host_stat values */ #define BT_OK 0x00 /* cmd ok */ #define BT_LINK_OK 0x0a /* Link cmd ok */ #define BT_LINK_IT 0x0b /* Link cmd ok + int */ #define BT_SEL_TIMEOUT 0x11 /* Selection time out */ #define BT_OVER_UNDER 0x12 /* Data over/under run */ #define BT_BUS_FREE 0x13 /* Bus dropped at unexpected time */ #define BT_INV_BUS 0x14 /* Invalid bus phase/sequence */ #define BT_BAD_MBO 0x15 /* Incorrect MBO cmd */ #define BT_BAD_CCB 0x16 /* Incorrect ccb opcode */ #define BT_BAD_LINK 0x17 /* Not same values of LUN for links */ #define BT_INV_TARGET 0x18 /* Invalid target direction */ #define BT_CCB_DUP 0x19 /* Duplicate CCB received */ #define BT_INV_CCB 0x1a /* Invalid CCB or segment list */ struct bt_extended_inquire { struct { u_char opcode; u_char len; } cmd; struct { u_char bus_type; /* Type of bus connected to */ #define BT_BUS_TYPE_24BIT 'A' /* ISA bus */ #define BT_BUS_TYPE_32BIT 'E' /* EISA/VLB/PCI bus */ #define BT_BUS_TYPE_MCA 'M' /* MicroChannel bus */ u_char bios_address; /* Address of adapter BIOS */ u_short max_segment; /* ? */ } reply; }; struct bt_config { struct { u_char opcode; } cmd; struct { u_char chan; u_char intr; u_char scsi_dev:3; u_char :5; } reply; }; struct bt_toggle { struct { u_char opcode; u_char enable; } cmd; }; struct bt_mailbox { struct { u_char opcode; u_char nmbx; physaddr addr; } cmd; }; struct bt_model { struct { u_char opcode; u_char len; } cmd; struct { u_char id[4]; /* i.e bt742a -> '7','4','2','A' */ u_char version[2]; /* i.e Board Revision 'H' -> 'H', 0x00 */ } reply; }; struct bt_revision { struct { u_char opcode; } cmd; struct { u_char board_type; u_char custom_feature; char firm_revision; u_char firm_version; } reply; }; struct bt_digit { struct { u_char opcode; } cmd; struct { u_char digit; } reply; }; struct bt_devices { struct { u_char opcode; } cmd; struct { u_char junk[8]; } reply; }; struct bt_setup { struct { u_char opcode; u_char len; } cmd; struct { u_char sync_neg:1; u_char parity:1; u_char :6; u_char speed; u_char bus_on; u_char bus_off; u_char num_mbx; u_char mbx[3]; /*XXX */ /* doesn't make sense with 32bit addresses */ struct { u_char offset:4; u_char period:3; u_char valid:1; } sync[8]; u_char disc_sts; } reply; }; struct bt_period { struct { u_char opcode; u_char len; } cmd; struct { u_char period[8]; } reply; }; #define INT9 0x01 #define INT10 0x02 #define INT11 0x04 #define INT12 0x08 #define INT14 0x20 #define INT15 0x40 #define EISADMA 0x00 #define CHAN0 0x01 #define CHAN5 0x20 #define CHAN6 0x40 #define CHAN7 0x80