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/* $OpenBSD: sbicreg.h,v 1.3 1997/01/16 09:25:17 niklas Exp $ */
/* $NetBSD: sbicreg.h,v 1.2 1994/10/26 02:04:40 cgd Exp $ */
/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Van Jacobson of Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)scsireg.h 7.3 (Berkeley) 2/5/91
*/
/*
* AMD AM33C93A SCSI interface hardware description.
*
* Using parts of the Mach scsi driver for the 33C93
*/
#define SBIC_myid 0
#define SBIC_cdbsize 0
#define SBIC_control 1
#define SBIC_timeo 2
#define SBIC_cdb1 3
#define SBIC_tsecs 3
#define SBIC_cdb2 4
#define SBIC_theads 4
#define SBIC_cdb3 5
#define SBIC_tcyl_hi 5
#define SBIC_cdb4 6
#define SBIC_tcyl_lo 6
#define SBIC_cdb5 7
#define SBIC_addr_hi 7
#define SBIC_cdb6 8
#define SBIC_addr_2 8
#define SBIC_cdb7 9
#define SBIC_addr_3 9
#define SBIC_cdb8 10
#define SBIC_addr_lo 10
#define SBIC_cdb9 11
#define SBIC_secno 11
#define SBIC_cdb10 12
#define SBIC_headno 12
#define SBIC_cdb11 13
#define SBIC_cylno_hi 13
#define SBIC_cdb12 14
#define SBIC_cylno_lo 14
#define SBIC_tlun 15
#define SBIC_cmd_phase 16
#define SBIC_syn 17
#define SBIC_count_hi 18
#define SBIC_count_med 19
#define SBIC_count_lo 20
#define SBIC_selid 21
#define SBIC_rselid 22
#define SBIC_csr 23
#define SBIC_cmd 24
#define SBIC_data 25
/* sbic_asr is addressed directly */
/*
* Register defines
*/
/*
* Auxiliary Status Register
*/
#define SBIC_ASR_INT 0x80 /* Interrupt pending */
#define SBIC_ASR_LCI 0x40 /* Last command ignored */
#define SBIC_ASR_BSY 0x20 /* Busy, only cmd/data/asr readable */
#define SBIC_ASR_CIP 0x10 /* Busy, cmd unavail also */
#define SBIC_ASR_xxx 0x0c
#define SBIC_ASR_PE 0x02 /* Parity error (even) */
#define SBIC_ASR_DBR 0x01 /* Data Buffer Ready */
/*
* My ID register, and/or CDB Size
*/
#define SBIC_ID_FS_8_10 0x00 /* Input clock is 8-10 Mhz */
/* 11 Mhz is invalid */
#define SBIC_ID_FS_12_15 0x40 /* Input clock is 12-15 Mhz */
#define SBIC_ID_FS_16_20 0x80 /* Input clock is 16-20 Mhz */
#define SBIC_ID_EHP 0x10 /* Enable host parity */
#define SBIC_ID_EAF 0x08 /* Enable Advanced Features */
#define SBIC_ID_MASK 0x07
#define SBIC_ID_CBDSIZE_MASK 0x0f /* if unk SCSI cmd group */
/*
* Control register
*/
#define SBIC_CTL_DMA 0x80 /* Single byte dma */
#define SBIC_CTL_DBA_DMA 0x40 /* direct buffer acces (bus master)*/
#define SBIC_CTL_BURST_DMA 0x20 /* continuous mode (8237) */
#define SBIC_CTL_NO_DMA 0x00 /* Programmed I/O */
#define SBIC_CTL_HHP 0x10 /* Halt on host parity error */
#define SBIC_CTL_EDI 0x08 /* Ending disconnect interrupt */
#define SBIC_CTL_IDI 0x04 /* Intermediate disconnect interrupt*/
#define SBIC_CTL_HA 0x02 /* Halt on ATN */
#define SBIC_CTL_HSP 0x01 /* Halt on SCSI parity error */
/*
* Timeout period register
* [val in msecs, input clk in 0.1 Mhz]
*/
#define SBIC_TIMEOUT(val,clk) ((((val) * (clk)) / 800) + 1)
/*
* CDBn registers, note that
* cdb11 is used for status byte in target mode (send-status-and-cc)
* cdb12 sez if linked command complete, and w/flag if so
*/
/*
* Target LUN register
* [holds target status when select-and-xfer]
*/
#define SBIC_TLUN_VALID 0x80 /* did we receive an Identify msg */
#define SBIC_TLUN_DOK 0x40 /* Disconnect OK */
#define SBIC_TLUN_xxx 0x38
#define SBIC_TLUN_MASK 0x07
/*
* Command Phase register
*/
#define SBIC_CPH_MASK 0x7f /* values/restarts are cmd specific */
#define SBIC_CPH(p) ((p) & SBIC_CPH_MASK)
/*
* FIFO register
*/
#define SBIC_FIFO_DEEP 12
/*
* maximum possible size in TC registers. Since this is 24 bit, it's easy
*/
#define SBIC_TC_MAX ((1 << 24) - 1)
/*
* Synchronous xfer register
*/
#define SBIC_SYN_OFF_MASK 0x0f
#define SBIC_SYN_MAX_OFFSET SBIC_FIFO_DEEP
#define SBIC_SYN_PER_MASK 0x70
#define SBIC_SYN_MIN_PERIOD 2 /* upto 8, encoded as 0 */
#define SBIC_SYN(o,p) \
(((o) & SBIC_SYN_OFF_MASK) | (((p) << 4) & SBIC_SYN_PER_MASK))
/*
* Transfer count register
* optimal access macros depend on addressing
*/
/*
* Destination ID (selid) register
*/
#define SBIC_SID_SCC 0x80 /* Select command chaining (tgt) */
#define SBIC_SID_DPD 0x40 /* Data phase direction (inittor) */
#define SBIC_SID_FROM_SCSI 0x40
#define SBIC_SID_TO_SCSI 0x00
#define SBIC_SID_xxx 0x38
#define SBIC_SID_IDMASK 0x07
/*
* Source ID (rselid) register
*/
#define SBIC_RID_ER 0x80 /* Enable reselection */
#define SBIC_RID_ES 0x40 /* Enable selection */
#define SBIC_RID_DSP 0x20 /* Disable select parity */
#define SBIC_RID_SIV 0x08 /* Source ID valid */
#define SBIC_RID_MASK 0x07
/*
* Status register
*/
#define SBIC_CSR_CAUSE 0xf0
#define SBIC_CSR_RESET 0x00 /* chip was reset */
#define SBIC_CSR_CMD_DONE 0x10 /* cmd completed */
#define SBIC_CSR_CMD_STOPPED 0x20 /* interrupted or abrted*/
#define SBIC_CSR_CMD_ERR 0x40 /* end with error */
#define SBIC_CSR_BUS_SERVICE 0x80 /* REQ pending on the bus */
#define SBIC_CSR_QUALIFIER 0x0f
/* Reset State Interrupts */
#define SBIC_CSR_RESET 0x00 /* reset w/advanced features*/
#define SBIC_CSR_RESET_AM 0x01 /* reset w/advanced features*/
/* Successful Completion Interrupts */
#define SBIC_CSR_TARGET 0x10 /* reselect complete */
#define SBIC_CSR_INITIATOR 0x11 /* select complete */
#define SBIC_CSR_WO_ATN 0x13 /* tgt mode completion */
#define SBIC_CSR_W_ATN 0x14 /* ditto */
#define SBIC_CSR_XLATED 0x15 /* translate address cmd */
#define SBIC_CSR_S_XFERRED 0x16 /* initiator mode completion*/
#define SBIC_CSR_XFERRED 0x18 /* phase in low bits */
/* Paused or Aborted Interrupts */
#define SBIC_CSR_MSGIN_W_ACK 0x20 /* (I) msgin, ACK asserted*/
#define SBIC_CSR_SDP 0x21 /* (I) SDP msg received */
#define SBIC_CSR_SEL_ABRT 0x22 /* sel/resel aborted */
#define SBIC_CSR_XFR_PAUSED 0x23 /* (T) no ATN */
#define SBIC_CSR_XFR_PAUSED_ATN 0x24 /* (T) ATN is asserted */
#define SBIC_CSR_RSLT_AM 0x27 /* (I) lost selection (AM) */
#define SBIC_CSR_MIS 0x28 /* (I) xfer aborted, ph mis */
/* Terminated Interrupts */
#define SBIC_CSR_CMD_INVALID 0x40
#define SBIC_CSR_DISC 0x41 /* (I) tgt disconnected */
#define SBIC_CSR_SEL_TIMEO 0x42
#define SBIC_CSR_PE 0x43 /* parity error */
#define SBIC_CSR_PE_ATN 0x44 /* ditto, ATN is asserted */
#define SBIC_CSR_XLATE_TOOBIG 0x45
#define SBIC_CSR_RSLT_NOAM 0x46 /* (I) lost sel, no AM mode */
#define SBIC_CSR_BAD_STATUS 0x47 /* status byte was nok */
#define SBIC_CSR_MIS_1 0x48 /* ph mis, see low bits */
/* Service Required Interrupts */
#define SBIC_CSR_RSLT_NI 0x80 /* reselected, no ify msg */
#define SBIC_CSR_RSLT_IFY 0x81 /* ditto, AM mode, got ify */
#define SBIC_CSR_SLT 0x82 /* selected, no ATN */
#define SBIC_CSR_SLT_ATN 0x83 /* selected with ATN */
#define SBIC_CSR_ATN 0x84 /* (T) ATN asserted */
#define SBIC_CSR_DISC_1 0x85 /* (I) bus is free */
#define SBIC_CSR_UNK_GROUP 0x87 /* strange CDB1 */
#define SBIC_CSR_MIS_2 0x88 /* (I) ph mis, see low bits */
#define SBIC_PHASE(csr) SCSI_PHASE(csr)
/*
* Command register (command codes)
*/
#define SBIC_CMD_SBT 0x80 /* Single byte xfer qualifier */
#define SBIC_CMD_MASK 0x7f
/* Miscellaneous */
#define SBIC_CMD_RESET 0x00 /* (DTI) lev I */
#define SBIC_CMD_ABORT 0x01 /* (DTI) lev I */
#define SBIC_CMD_DISC 0x04 /* ( TI) lev I */
#define SBIC_CMD_SSCC 0x0d /* ( TI) lev I */
#define SBIC_CMD_SET_IDI 0x0f /* (DTI) lev I */
#define SBIC_CMD_XLATE 0x18 /* (DT ) lev II */
/* Initiator state */
#define SBIC_CMD_SET_ATN 0x02 /* ( I) lev I */
#define SBIC_CMD_CLR_ACK 0x03 /* ( I) lev I */
#define SBIC_CMD_XFER_PAD 0x19 /* ( I) lev II */
#define SBIC_CMD_XFER_INFO 0x20 /* ( I) lev II */
/* Target state */
#define SBIC_CMD_SND_DISC 0x0e /* ( T ) lev II */
#define SBIC_CMD_RCV_CMD 0x10 /* ( T ) lev II */
#define SBIC_CMD_RCV_DATA 0x11 /* ( T ) lev II */
#define SBIC_CMD_RCV_MSG_OUT 0x12 /* ( T ) lev II */
#define SBIC_CMD_RCV 0x13 /* ( T ) lev II */
#define SBIC_CMD_SND_STATUS 0x14 /* ( T ) lev II */
#define SBIC_CMD_SND_DATA 0x15 /* ( T ) lev II */
#define SBIC_CMD_SND_MSG_IN 0x16 /* ( T ) lev II */
#define SBIC_CMD_SND 0x17 /* ( T ) lev II */
/* Disconnected state */
#define SBIC_CMD_RESELECT 0x05 /* (D ) lev II */
#define SBIC_CMD_SEL_ATN 0x06 /* (D ) lev II */
#define SBIC_CMD_SEL 0x07 /* (D ) lev II */
#define SBIC_CMD_SEL_ATN_XFER 0x08 /* (D I) lev II */
#define SBIC_CMD_SEL_XFER 0x09 /* (D I) lev II */
#define SBIC_CMD_RESELECT_RECV 0x0a /* (DT ) lev II */
#define SBIC_CMD_RESELECT_SEND 0x0b /* (DT ) lev II */
#define SBIC_CMD_WAIT_SEL_RECV 0x0c /* (DT ) lev II */
/* approximate, but we won't do SBT on selects */
#define sbic_isa_select(cmd) (((cmd) > 0x5) && ((cmd) < 0xa))
#define PAD(n) char n;
#define SBIC_MACHINE_DMA_MODE SBIC_CTL_DMA
typedef struct {
#ifdef APOLLO
PAD(pad1);
PAD(pad2);
#endif
volatile unsigned char sbic_asr; /* r : Aux Status Register */
#define sbic_address sbic_asr /* w : desired register no */
PAD(pad3);
#ifdef APOLLO
PAD(pad4);
PAD(pad5);
#endif
volatile unsigned char sbic_value; /* rw: register value */
} sbic_padded_ind_regmap_t;
typedef volatile sbic_padded_ind_regmap_t *sbic_regmap_p;
#define sbic_read_reg(regs,regno,val) do { \
(regs)->sbic_address = (regno); \
(val) = (regs)->sbic_value; \
} while (0)
#define sbic_write_reg(regs,regno,val) do { \
(regs)->sbic_address = (regno); \
(regs)->sbic_value = (val); \
} while (0)
#define SET_SBIC_myid(regs,val) sbic_write_reg(regs,SBIC_myid,val)
#define GET_SBIC_myid(regs,val) sbic_read_reg(regs,SBIC_myid,val)
#define SET_SBIC_cdbsize(regs,val) sbic_write_reg(regs,SBIC_cdbsize,val)
#define GET_SBIC_cdbsize(regs,val) sbic_read_reg(regs,SBIC_cdbsize,val)
#define SET_SBIC_control(regs,val) sbic_write_reg(regs,SBIC_control,val)
#define GET_SBIC_control(regs,val) sbic_read_reg(regs,SBIC_control,val)
#define SET_SBIC_timeo(regs,val) sbic_write_reg(regs,SBIC_timeo,val)
#define GET_SBIC_timeo(regs,val) sbic_read_reg(regs,SBIC_timeo,val)
#define SET_SBIC_cdb1(regs,val) sbic_write_reg(regs,SBIC_cdb1,val)
#define GET_SBIC_cdb1(regs,val) sbic_read_reg(regs,SBIC_cdb1,val)
#define SET_SBIC_cdb2(regs,val) sbic_write_reg(regs,SBIC_cdb2,val)
#define GET_SBIC_cdb2(regs,val) sbic_read_reg(regs,SBIC_cdb2,val)
#define SET_SBIC_cdb3(regs,val) sbic_write_reg(regs,SBIC_cdb3,val)
#define GET_SBIC_cdb3(regs,val) sbic_read_reg(regs,SBIC_cdb3,val)
#define SET_SBIC_cdb4(regs,val) sbic_write_reg(regs,SBIC_cdb4,val)
#define GET_SBIC_cdb4(regs,val) sbic_read_reg(regs,SBIC_cdb4,val)
#define SET_SBIC_cdb5(regs,val) sbic_write_reg(regs,SBIC_cdb5,val)
#define GET_SBIC_cdb5(regs,val) sbic_read_reg(regs,SBIC_cdb5,val)
#define SET_SBIC_cdb6(regs,val) sbic_write_reg(regs,SBIC_cdb6,val)
#define GET_SBIC_cdb6(regs,val) sbic_read_reg(regs,SBIC_cdb6,val)
#define SET_SBIC_cdb7(regs,val) sbic_write_reg(regs,SBIC_cdb7,val)
#define GET_SBIC_cdb7(regs,val) sbic_read_reg(regs,SBIC_cdb7,val)
#define SET_SBIC_cdb8(regs,val) sbic_write_reg(regs,SBIC_cdb8,val)
#define GET_SBIC_cdb8(regs,val) sbic_read_reg(regs,SBIC_cdb8,val)
#define SET_SBIC_cdb9(regs,val) sbic_write_reg(regs,SBIC_cdb9,val)
#define GET_SBIC_cdb9(regs,val) sbic_read_reg(regs,SBIC_cdb9,val)
#define SET_SBIC_cdb10(regs,val) sbic_write_reg(regs,SBIC_cdb10,val)
#define GET_SBIC_cdb10(regs,val) sbic_read_reg(regs,SBIC_cdb10,val)
#define SET_SBIC_cdb11(regs,val) sbic_write_reg(regs,SBIC_cdb11,val)
#define GET_SBIC_cdb11(regs,val) sbic_read_reg(regs,SBIC_cdb11,val)
#define SET_SBIC_cdb12(regs,val) sbic_write_reg(regs,SBIC_cdb12,val)
#define GET_SBIC_cdb12(regs,val) sbic_read_reg(regs,SBIC_cdb12,val)
#define SET_SBIC_tlun(regs,val) sbic_write_reg(regs,SBIC_tlun,val)
#define GET_SBIC_tlun(regs,val) sbic_read_reg(regs,SBIC_tlun,val)
#define SET_SBIC_cmd_phase(regs,val) sbic_write_reg(regs,SBIC_cmd_phase,val)
#define GET_SBIC_cmd_phase(regs,val) sbic_read_reg(regs,SBIC_cmd_phase,val)
#define SET_SBIC_syn(regs,val) sbic_write_reg(regs,SBIC_syn,val)
#define GET_SBIC_syn(regs,val) sbic_read_reg(regs,SBIC_syn,val)
#define SET_SBIC_count_hi(regs,val) sbic_write_reg(regs,SBIC_count_hi,val)
#define GET_SBIC_count_hi(regs,val) sbic_read_reg(regs,SBIC_count_hi,val)
#define SET_SBIC_count_med(regs,val) sbic_write_reg(regs,SBIC_count_med,val)
#define GET_SBIC_count_med(regs,val) sbic_read_reg(regs,SBIC_count_med,val)
#define SET_SBIC_count_lo(regs,val) sbic_write_reg(regs,SBIC_count_lo,val)
#define GET_SBIC_count_lo(regs,val) sbic_read_reg(regs,SBIC_count_lo,val)
#define SET_SBIC_selid(regs,val) sbic_write_reg(regs,SBIC_selid,val)
#define GET_SBIC_selid(regs,val) sbic_read_reg(regs,SBIC_selid,val)
#define SET_SBIC_rselid(regs,val) sbic_write_reg(regs,SBIC_rselid,val)
#define GET_SBIC_rselid(regs,val) sbic_read_reg(regs,SBIC_rselid,val)
#define SET_SBIC_csr(regs,val) sbic_write_reg(regs,SBIC_csr,val)
#define GET_SBIC_csr(regs,val) sbic_read_reg(regs,SBIC_csr,val)
#define SET_SBIC_cmd(regs,val) sbic_write_reg(regs,SBIC_cmd,val)
#define GET_SBIC_cmd(regs,val) sbic_read_reg(regs,SBIC_cmd,val)
#define SET_SBIC_data(regs,val) sbic_write_reg(regs,SBIC_data,val)
#define GET_SBIC_data(regs,val) sbic_read_reg(regs,SBIC_data,val)
#define SBIC_TC_PUT(regs,val) do { \
sbic_write_reg(regs,SBIC_count_hi,((val)>>16)); \
(regs)->sbic_value = (val)>>8; \
(regs)->sbic_value = (val); \
} while (0)
#define SBIC_TC_GET(regs,val) do { \
sbic_read_reg(regs,SBIC_count_hi,(val)); \
(val) = ((val)<<8) | (regs)->sbic_value; \
(val) = ((val)<<8) | (regs)->sbic_value; \
} while (0)
#define SBIC_LOAD_COMMAND(regs,cmd,cmdsize) do { \
int n=(cmdsize)-1; \
char *ptr = (char*)(cmd); \
sbic_write_reg(regs,SBIC_cdb1,*ptr++); \
while (n-- > 0) (regs)->sbic_value = *ptr++; \
} while (0)
#define GET_SBIC_asr(regs,val) (val) = (regs)->sbic_asr
#define WAIT_CIP(regs) do { \
while ((regs)->sbic_asr & SBIC_ASR_CIP) \
; \
} while (0)
/* transmit a byte in programmed I/O mode */
#define SEND_BYTE(regs, ch) do { \
WAIT_CIP(regs); \
SET_SBIC_cmd(regs, SBIC_CMD_SBT | SBIC_CMD_XFER_INFO); \
SBIC_WAIT(regs, SBIC_ASR_DBR, 0); \
SET_SBIC_data(regs, ch); \
} while (0)
/* receive a byte in programmed I/O mode */
#define RECV_BYTE(regs, ch) do { \
WAIT_CIP(regs); \
SET_SBIC_cmd(regs, SBIC_CMD_SBT | SBIC_CMD_XFER_INFO); \
SBIC_WAIT(regs, SBIC_ASR_DBR, 0); \
GET_SBIC_data(regs, ch); \
} while (0)
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