ncr5380var.h revision 1.1
1 /* $NetBSD: ncr5380var.h,v 1.1 1995/07/08 21:30:44 pk Exp $ */ 2 3 /* 4 * Copyright (C) 1994 Adam Glass, Gordon W. Ross 5 * Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo, 6 * Michael L. Finch, Bradley A. Grantham, and 7 * Lawrence A. Kesteloot 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the Alice Group. 21 * 4. The names of the Alice Group or any of its members may not be used 22 * to endorse or promote products derived from this software without 23 * specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR 26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT, 29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #define SCI_PHASE_DISC 0 /* sort of ... */ 38 #define SCI_CLR_INTR(regs) ((volatile)(regs->sci_iack)) 39 #define SCI_ACK(ptr,phase) (ptr)->sci_tcmd = (phase) 40 #define SCSI_TIMEOUT_VAL 1000000 41 #define WAIT_FOR_NOT_REQ(ptr) { \ 42 int scsi_timeout = SCSI_TIMEOUT_VAL; \ 43 while ( ((ptr)->sci_bus_csr & SCI_BUS_REQ) && \ 44 ((ptr)->sci_bus_csr & SCI_BUS_REQ) && \ 45 ((ptr)->sci_bus_csr & SCI_BUS_REQ) && \ 46 (--scsi_timeout) ); \ 47 if (!scsi_timeout) { \ 48 printf("scsi timeout--WAIT_FOR_NOT_REQ---%s, line %d.\n", \ 49 __FILE__, __LINE__); \ 50 goto scsi_timeout_error; \ 51 } \ 52 } 53 #define WAIT_FOR_REQ(ptr) { \ 54 int scsi_timeout = SCSI_TIMEOUT_VAL; \ 55 while ( (((ptr)->sci_bus_csr & SCI_BUS_REQ) == 0) && \ 56 (((ptr)->sci_bus_csr & SCI_BUS_REQ) == 0) && \ 57 (((ptr)->sci_bus_csr & SCI_BUS_REQ) == 0) && \ 58 (--scsi_timeout) ); \ 59 if (!scsi_timeout) { \ 60 printf("scsi timeout--WAIT_FOR_REQ---%s, line %d.\n", \ 61 __FILE__, __LINE__); \ 62 goto scsi_timeout_error; \ 63 } \ 64 } 65 #define WAIT_FOR_BSY(ptr) { \ 66 int scsi_timeout = SCSI_TIMEOUT_VAL; \ 67 while ( (((ptr)->sci_bus_csr & SCI_BUS_BSY) == 0) && \ 68 (((ptr)->sci_bus_csr & SCI_BUS_BSY) == 0) && \ 69 (((ptr)->sci_bus_csr & SCI_BUS_BSY) == 0) && \ 70 (--scsi_timeout) ); \ 71 if (!scsi_timeout) { \ 72 printf("scsi timeout--WAIT_FOR_BSY---%s, line %d.\n", \ 73 __FILE__, __LINE__); \ 74 goto scsi_timeout_error; \ 75 } \ 76 } 77 78 #define ARBITRATION_RETRIES 1000 79 80 #ifdef DDB 81 int Debugger(); 82 #else 83 #define Debugger() panic("Should call Debugger here %s:%d", \ 84 __FILE__, __LINE__) 85 #endif 86 87 struct ncr5380_softc { 88 struct device sc_dev; 89 struct intrhand sc_ih; /* interrupt info */ 90 volatile void *sc_regs; 91 int sc_adapter_type; 92 int sc_adapter_iv_am; /* int. vec + address modifier */ 93 struct scsi_link sc_link; 94 }; 95 96 static int ncr5380_reset_scsibus __P((struct ncr5380_softc *)); 97 static int ncr5380_poll __P((int, int)); 98 static void ncr5380_sbc_intr __P((struct ncr5380_softc *)); 99 static int ncr5380_send_cmd __P((struct scsi_xfer *)); 100 static int ncr5380_scsi_cmd __P((struct scsi_xfer *)); 101 static int ncr5380_data_in __P((sci_regmap_t *, int, int, u_char *)); 102 static int ncr5380_data_out __P((sci_regmap_t *, int, int, u_char *)); 103 static int ncr5380_select_target __P((volatile sci_regmap_t *, u_char, 104 u_char, int)); 105 static int ncr5380_command_transfer __P((volatile sci_regmap_t *, int, 106 u_char *, u_char *, u_char *)); 107 static int ncr5380_data_transfer __P((volatile sci_regmap_t *, int, 108 u_char *, u_char *, u_char *)); 109 static int ncr5380_dorequest __P((struct ncr5380_softc *, int, int, 110 u_char *, int, char *, int, int *)); 111 112 static int ncr5380_generic __P((int, int, int, struct scsi_generic *, 113 int, void *, int)); 114 static int ncr5380_group0 __P((int, int, int, int, int, int, 115 int, caddr_t, int)); 116 117 118
Indexes created Mon Sep 29 21:09:56 GMT 2025