Annotation of sys/dev/ic/cacvar.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: cacvar.h,v 1.3 2003/03/06 22:31:21 mickey Exp $ */
! 2: /* $NetBSD: cacvar.h,v 1.7 2000/10/19 14:28:47 ad Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 2000 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Andrew Doran.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: #ifndef _IC_CACVAR_H_
! 41: #define _IC_CACVAR_H_
! 42:
! 43: #define CAC_MAX_CCBS 128
! 44: #define CAC_MAX_XFER (0xffff * 512)
! 45: #define CAC_SG_SIZE 32
! 46: #define CAC_SECTOR_SIZE 512
! 47:
! 48: #define cac_inb(sc, port) \
! 49: bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, port)
! 50: #define cac_inw(sc, port) \
! 51: bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, port)
! 52: #define cac_inl(sc, port) \
! 53: bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, port)
! 54: #define cac_outb(sc, port, val) \
! 55: bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, port, val)
! 56: #define cac_outw(sc, port, val) \
! 57: bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, port, val)
! 58: #define cac_outl(sc, port, val) \
! 59: bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, port, val)
! 60:
! 61: /*
! 62: * Stupid macros to deal with alignment/endianness issues.
! 63: */
! 64:
! 65: #define CAC_GET1(x) \
! 66: (((u_char *)&(x))[0])
! 67: #define CAC_GET2(x) \
! 68: (((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8))
! 69: #define CAC_GET4(x) \
! 70: ((((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8)) | \
! 71: (((u_char *)&(x))[0] << 16 | (((u_char *)&(x))[1] << 24)))
! 72:
! 73: struct cac_ccb {
! 74: /* Data the controller will touch - 276 bytes */
! 75: struct cac_hdr ccb_hdr;
! 76: struct cac_req ccb_req;
! 77: struct cac_sgb ccb_seg[CAC_SG_SIZE];
! 78:
! 79: /* Data the controller won't touch */
! 80: int ccb_flags;
! 81: int ccb_datasize;
! 82: paddr_t ccb_paddr;
! 83: bus_dmamap_t ccb_dmamap_xfer;
! 84: SIMPLEQ_ENTRY(cac_ccb) ccb_chain;
! 85: struct scsi_xfer *ccb_xs;
! 86: };
! 87:
! 88: #define CAC_CCB_DATA_IN 0x0001 /* Map describes inbound xfer */
! 89: #define CAC_CCB_DATA_OUT 0x0002 /* Map describes outbound xfer */
! 90: #define CAC_CCB_ACTIVE 0x0004 /* Command submitted to controller */
! 91:
! 92: struct cac_softc;
! 93:
! 94: struct cac_linkage {
! 95: struct cac_ccb *(*cl_completed)(struct cac_softc *);
! 96: int (*cl_fifo_full)(struct cac_softc *);
! 97: void (*cl_intr_enable)(struct cac_softc *, int);
! 98: int (*cl_intr_pending)(struct cac_softc *);
! 99: void (*cl_submit)(struct cac_softc *, struct cac_ccb *);
! 100: };
! 101:
! 102: struct cac_softc {
! 103: struct device sc_dv;
! 104: bus_space_tag_t sc_iot;
! 105: bus_space_handle_t sc_ioh;
! 106: bus_dma_tag_t sc_dmat;
! 107: bus_dmamap_t sc_dmamap;
! 108: int sc_nunits;
! 109: void *sc_ih;
! 110: struct scsi_link sc_link;
! 111: const struct cac_linkage *sc_cl;
! 112: caddr_t sc_ccbs;
! 113: paddr_t sc_ccbs_paddr;
! 114: SIMPLEQ_HEAD(, cac_ccb) sc_ccb_free;
! 115: SIMPLEQ_HEAD(, cac_ccb) sc_ccb_queue;
! 116: struct cac_drive_info *sc_dinfos;
! 117: };
! 118:
! 119: int cac_init(struct cac_softc *, int);
! 120: int cac_intr(void *);
! 121:
! 122: extern const struct cac_linkage cac_l0;
! 123:
! 124: #endif /* !_IC_CACVAR_H_ */
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