/* $OpenBSD: sbicreg.h,v 1.5 2003/02/11 19:20:26 mickey 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 */ /* * WD33C93 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 says 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 { volatile unsigned char sbic_asr; /* r : Aux Status Register */ #define sbic_address sbic_asr /* w : desired register no */ 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)