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Diffstat (limited to 'scsi/adapters/scsi_aha15.h')
| -rw-r--r-- | scsi/adapters/scsi_aha15.h | 347 |
1 files changed, 0 insertions, 347 deletions
diff --git a/scsi/adapters/scsi_aha15.h b/scsi/adapters/scsi_aha15.h deleted file mode 100644 index 52cd936..0000000 --- a/scsi/adapters/scsi_aha15.h +++ /dev/null @@ -1,347 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1991,1990 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ -/* - * File: scsi_aha15.h - * Author: Alessandro Forin, Carnegie Mellon University - * Date: 6/91 - * - * Definitions for the Adaptec AHA-15xx family - * of Intelligent SCSI Host Adapter boards - */ - -#ifndef _SCSI_AHA15_H_ -#define _SCSI_AHA15_H_ - -/* - * Addresses/length in 24 bits - * - * BEWARE: your compiler must pack these correctly, - * e.g. without gaps between two such contiguous structs - * (GCC does) - */ -typedef struct { - unsigned char msb; - unsigned char mid; - unsigned char lsb; -} aha_address_t; - -#define AHA_ADDRESS_SET(addr,val) {\ - (addr).msb = ((val) >> 16);\ - (addr).mid = ((val) >> 8);\ - (addr).lsb = (val) ;\ - } -#define AHA_ADDRESS_GET(addr,val) {\ - (val) = ((addr).msb << 16) |\ - ((addr).mid << 8) |\ - ((addr).lsb ) ;\ - } - -#define aha_length_t aha_address_t -#define AHA_LENGTH_SET AHA_ADDRESS_SET -#define AHA_LENGTH_GET AHA_ADDRESS_GET - -/* - * Register map - */ - -typedef struct { - volatile unsigned char aha_status; /* r: Status Register */ -#define aha_ctl aha_status /* w: Control Register */ - - volatile unsigned char aha_data; /* rw: Data Port */ -#define aha_cmd aha_data /* w: Command register */ - - volatile unsigned char aha_intr; /* ro: Interrupt Register */ -} aha_regmap_t; - -/* ..but on the 386 I/O is not memory mapped */ -#define AHA_STATUS_PORT(port) ((port)) -#define AHA_CONTROL_PORT(port) ((port)) -#define AHA_COMMAND_PORT(port) ((port)+1) -#define AHA_DATA_PORT(port) ((port)+1) -#define AHA_INTR_PORT(port) ((port)+2) - -/* Status Register */ -#define AHA_CSR_CMD_ERR 0x01 /* Invalid command */ -#define AHA_CSR_xxx 0x02 /* undefined */ -#define AHA_CSR_DATAI_FULL 0x04 /* In-port full */ -#define AHA_CSR_DATAO_FULL 0x08 /* Out-port full */ -#define AHA_CSR_IDLE 0x10 /* doin nuthin */ -#define AHA_CSR_INIT_REQ 0x20 /* initialization required */ -#define AHA_CSR_DIAG_FAIL 0x40 /* selftest failed */ -#define AHA_CSR_SELF_TEST 0x80 /* selftesting */ - -/* Control Register */ -#define AHA_CTL_xxx 0x0f /* undefined */ -#define AHA_CTL_SCSI_RST 0x10 /* reset SCSIbus */ -#define AHA_CTL_INTR_CLR 0x20 /* Clear interrupt reg */ -#define AHA_CTL_SOFT_RESET 0x40 /* Board only, no selftest */ -#define AHA_CTL_HARD_RESET 0x80 /* Full reset, and SCSIbus */ - -/* Interrupt Flags register */ -#define AHA_INTR_MBI_FULL 0x01 /* scan the In mboxes */ -#define AHA_INTR_MBO_AVAIL 0x02 /* scan the Out mboxes */ -#define AHA_INTR_DONE 0x04 /* command complete */ -#define AHA_INTR_RST 0x08 /* saw a SCSIbus reset */ -#define AHA_INTR_xxx 0x70 /* undefined */ -#define AHA_INTR_PENDING 0x80 /* Any interrupt bit set */ - -/* - * Command register - */ -#define AHA_CMD_NOP 0x00 /* */ -#define AHA_CMD_INIT 0x01 /* mbox initialization */ - /* 4 bytes follow: # of Out mboxes (x2->total), and - msb, mid, lsb of mbox address */ -struct aha_init { - unsigned char mb_count; - aha_address_t mb_ptr; -}; -#define AHA_CMD_START 0x02 /* start SCSI cmd */ -#define AHA_CMD_BIOS 0x03 -#define AHA_CMD_INQUIRY 0x04 - /* returns 4 bytes: */ -struct aha_inq { - unsigned char board_id; -# define AHA_BID_1540_B16 0x00 -# define AHA_BID_1540_B64 0x30 -# define AHA_BID_1540B 0x41 -# define AHA_BID_1640 0x42 -# define AHA_BID_1740 0x43 -# define AHA_BID_1542C 0x44 -# define AHA_BID_1542CF 0x45 /* BIOS v2.0x */ - - unsigned char options; -# define AHA_BOPT_STD 0x41 /* in 154x, standard model */ - - unsigned char frl_1; /* rev level */ - unsigned char frl_2; -}; -#define AHA_CMD_MBO_IE 0x05 - /* 1 byte follows: */ -# define AHA_MBO_DISABLE 0x00 -# define AHA_MBO_ENABLE 0x01 - -#define AHA_CMD_SET_SELTO 0x06 /* select timeout */ - /* 4 bytes follow: */ -struct aha_selto { - unsigned char enable; - char xxx; - unsigned char timeo_msb; - unsigned char timeo_lsb; -}; -#define AHA_CMD_SET_BUSON 0x07 - /* 1 byte value follows: 2..15 default 11 usecs */ -#define AHA_CMD_SET_BUSOFF 0x08 - /* 1 byte value follows: 1..64 default 4 usecs */ -#define AHA_CMD_SET_XSPEED 0x09 - /* 1 byte value follows: */ -# define AHA_DMASPEED_5Mb 0x00 -# define AHA_DMASPEED_7Mb 0x01 -# define AHA_DMASPEED_8Mb 0x02 -# define AHA_DMASPEED_10Mb 0x03 -# define AHA_DMASPEED_6Mb 0x04 - /* values in the range 80..ff encoded as follows: - bit 7 on --> custom speed - bits 6..4 read pulse width - 0 100ns - 1 150 - 2 200 - 3 250 - 4 300 - 5 350 - 6 400 - 7 450 - bit 3 strobe off time - 0 100ns - 1 150ns - bits 2..0 write pulse width - <same as read pulse> - */ -#define AHA_CMD_FIND_DEVICES 0x0a - /* returns 8 bytes, each one is a bitmask of the LUNs - available for the given target ID */ -struct aha_devs { - unsigned char tgt_luns[8]; -}; -#define AHA_CMD_GET_CONFIG 0x0b - /* returns 3 bytes: */ -struct aha_conf { - unsigned char dma_arbitration;/* bit N -> channel N */ - unsigned char intr_ch;/* bit N -> intr 9+N (but 13,16)*/ - unsigned char my_scsi_id; /* both of I and T role */ -}; -#define AHA_CMD_ENB_TGT_MODE 0x0c - /* 2 bytes follow: */ -struct aha_tgt { - unsigned char enable; - unsigned char luns; /* bitmask */ -}; - -#define AHA_CMD_GET_SETUP 0x0d - /* 1 byte follows: allocation len (N) */ - /* returns N bytes, 17 significant: */ -struct aha_setup { - BITFIELD_3( unsigned char, - initiate_SDT:1, - enable_parity:1, - res:6); - unsigned char xspeed; /* see above */ - unsigned char buson; - unsigned char busoff; - unsigned char n_mboxes;/* 0 if not initialized */ - aha_address_t mb_ptr; /* garbage if not inited */ - struct { - BITFIELD_3( unsigned char, - offset: 4, - period: 3, /* 200 + 50 * N */ - negotiated: 1); - } SDT_params[8]; - unsigned char no_disconnect; /* bitmask */ -}; - -#define AHA_CMD_WRITE_CH2 0x1a - /* 3 bytes (aha_address_t) follow for the buffer pointer */ -#define AHA_CMD_READ_CH2 0x1b - /* 3 bytes (aha_address_t) follow for the buffer pointer */ -#define AHA_CMD_WRITE_FIFO 0x1c - /* 3 bytes (aha_address_t) follow for the buffer pointer */ -#define AHA_CMD_READ_FIFO 0x1d - /* 3 bytes (aha_address_t) follow for the buffer pointer */ -#define AHA_CMD_ECHO 0x1f - /* 1 byte follows, which should then be read back */ -#define AHA_CMD_DIAG 0x20 -#define AHA_CMD_SET_OPT 0x21 - /* 2+ bytes follow: */ -struct aha_diag { - unsigned char parmlen; /* bytes to follow */ - unsigned char no_disconnect; /* bitmask */ - /* rest is undefined */ -}; - -#define AHA_EXT_BIOS 0x28 /* return extended bios info */ -#define AHA_MBX_ENABLE 0x29 /* enable mail box interface */ -struct aha_extbios { - unsigned char flags; /* Bit 3 == 1 extended bios enabled */ - unsigned char mailboxlock; /* mail box lock code to unlock it */ -}; - -/* - * Command Control Block - */ -typedef struct { - unsigned char ccb_code; -# define AHA_CCB_I_CMD 0x00 -# define AHA_CCB_T_CMD 0x01 -# define AHA_CCB_I_CMD_SG 0x02 -# define AHA_CCB_ICMD_R 0x03 -# define AHA_CCB_ICMD_SG_R 0x04 -# define AHA_CCB_BDEV_RST 0x81 - BITFIELD_4( unsigned char, - ccb_lun:3, - ccb_in:1, - ccb_out:1, - ccb_scsi_id:3); - unsigned char ccb_cmd_len; - unsigned char ccb_reqsns_len; /* if 1 no automatic reqsns*/ - aha_length_t ccb_datalen; - aha_address_t ccb_dataptr; - aha_address_t ccb_linkptr; - unsigned char ccb_linkid; - unsigned char ccb_hstatus; -# define AHA_HST_SUCCESS 0x00 -# define AHA_HST_SEL_TIMEO 0x11 -# define AHA_HST_DATA_OVRUN 0x12 -# define AHA_HST_BAD_DISCONN 0x13 -# define AHA_HST_BAD_PHASE_SEQ 0x14 -# define AHA_HST_BAD_OPCODE 0x16 -# define AHA_HST_BAD_LINK_LUN 0x17 -# define AHA_HST_INVALID_TDIR 0x18 -# define AHA_HST_DUPLICATED_CCB 0x19 -# define AHA_HST_BAD_PARAM 0x1a - - scsi2_status_byte_t ccb_status; - unsigned char ccb_xxx; - unsigned char ccb_xxx1; - scsi_command_group_5 ccb_scsi_cmd; /* cast as needed */ -} aha_ccb_t; - -/* For scatter/gather use a list of (len,ptr) segments, each field - is 3 bytes (aha_address_t) long. Max 17 segments, min 1 */ - -/* - * Ring descriptor, aka Mailbox - */ -typedef union { - - struct { - volatile unsigned char mb_cmd; /* Out mbox */ -# define mb_status mb_cmd /* In mbox */ - - aha_address_t mb_ptr; -#define AHA_MB_SET_PTR(mbx,val) AHA_ADDRESS_SET((mbx)->mb.mb_ptr,(val)) -#define AHA_MB_GET_PTR(mbx,val) AHA_ADDRESS_GET((mbx)->mb.mb_ptr,(val)) - - } mb; - - struct { /* ccb required In mbox */ - volatile unsigned char mb_cmd; - BITFIELD_4( unsigned char, - mb_lun : 3, - mb_isa_send : 1, - mb_isa_recv : 1, - mb_initiator_id : 3); - unsigned char mb_data_len_msb; - unsigned char mb_data_len_mid; - } mbt; - - unsigned int bits; /* quick access */ - -} aha_mbox_t; - -/* Out mbox, values for the mb_cmd field */ -#define AHA_MBO_FREE 0x00 -#define AHA_MBO_START 0x01 -#define AHA_MBO_ABORT 0x02 - -/* In mbox, values for the mb_status field */ -#define AHA_MBI_FREE 0x00 -#define AHA_MBI_SUCCESS 0x01 -#define AHA_MBI_ABORTED 0x02 -#define AHA_MBI_NOT_FOUND 0x03 -#define AHA_MBI_ERROR 0x04 -#define AHA_MBI_NEED_CCB 0x10 - -/* - * Scatter/gather segment lists - */ -typedef struct { - aha_length_t len; - aha_address_t ptr; -} aha_seglist_t; - -#define AHA_MAX_SEGLIST 17 /* which means max 64Kb */ -#endif /*_SCSI_AHA15_H_*/ |