1 /* $NetBSD: amrvar.h,v 1.1 2002/01/30 14:35:45 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 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 NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _PCI_AMRVAR_H_ 40 #define _PCI_AMRVAR_H_ 41 42 #include "locators.h" 43 44 #define AMR_MAX_UNITS 16 45 46 /* 47 * Logical drive information. 48 */ 49 struct amr_logdrive { 50 u_int al_size; 51 u_short al_state; 52 u_short al_properties; 53 }; 54 55 /* 56 * Per-controller state. 57 */ 58 struct amr_softc { 59 /* Generic device data. */ 60 struct device amr_dv; 61 bus_space_tag_t amr_iot; 62 bus_space_handle_t amr_ioh; 63 bus_dma_tag_t amr_dmat; 64 bus_dmamap_t amr_dmamap; 65 void *amr_ih; 66 67 /* Command mailbox. */ 68 struct amr_mailbox *amr_mbox; 69 bus_addr_t amr_mbox_paddr; 70 71 /* Scatter-gather lists. */ 72 struct amr_sgentry *amr_sgls; 73 bus_addr_t amr_sgls_paddr; 74 75 /* Command management. */ 76 struct amr_ccb *amr_ccbs; 77 SLIST_HEAD(, amr_ccb) amr_ccb_freelist; 78 SIMPLEQ_HEAD(, amr_ccb) amr_ccb_queue; 79 int amr_maxqueuecnt; 80 81 /* Hardware-specific linkage. */ 82 int (*amr_get_work)(struct amr_softc *, struct amr_mailbox *); 83 int (*amr_submit)(struct amr_softc *sc, struct amr_ccb *); 84 85 /* Logical drive information. */ 86 int amr_numdrives; 87 struct amr_logdrive amr_drive[AMR_MAX_UNITS]; 88 }; 89 90 /* 91 * Command control block. 92 */ 93 struct amr_ccb { 94 union { 95 SIMPLEQ_ENTRY(amr_ccb) simpleq; 96 SLIST_ENTRY(amr_ccb) slist; 97 } ac_chain; 98 99 u_int ac_flags; 100 u_int ac_status; 101 u_int ac_ident; 102 103 u_int ac_xfer_size; 104 bus_dmamap_t ac_xfer_map; 105 106 struct amr_mailbox ac_mbox; 107 108 void (*ac_handler)(struct amr_ccb *); 109 void *ac_context; 110 struct device *ac_dv; 111 }; 112 #define AC_XFER_IN 0x01 /* Map describes inbound xfer */ 113 #define AC_XFER_OUT 0x02 /* Map describes outbound xfer */ 114 #define AC_COMPLETE 0x04 /* Command completed */ 115 #define AC_ACTIVE 0x08 /* Command active */ 116 #define AC_NOSGL 0x10 /* No scatter/gather list */ 117 118 struct amr_attach_args { 119 int amra_unit; 120 }; 121 122 #define amracf_unit cf_loc[AMRCF_UNIT] 123 124 int amr_ccb_alloc(struct amr_softc *, struct amr_ccb **); 125 void amr_ccb_enqueue(struct amr_softc *, struct amr_ccb *); 126 void amr_ccb_free(struct amr_softc *, struct amr_ccb *); 127 int amr_ccb_map(struct amr_softc *, struct amr_ccb *, void *, int, int); 128 int amr_ccb_poll(struct amr_softc *, struct amr_ccb *, int); 129 void amr_ccb_unmap(struct amr_softc *, struct amr_ccb *); 130 131 #endif /* !_PCI_AMRVAR_H_ */ 132