1 /* $NetBSD: amrvar.h,v 1.8 2008/04/28 20:23:54 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2002, 2003 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _PCI_AMRVAR_H_ 33 #define _PCI_AMRVAR_H_ 34 35 #define AMR_MAX_UNITS 16 36 #define AMR_WDOG_TICKS (hz * 5) 37 #define AMR_NCCB_RESV 2 38 #define AMR_ENQUIRY_BUFSIZE 2048 39 #define AMR_SGL_SIZE (sizeof(struct amr_sgentry) * AMR_MAX_SEGS) 40 #define AMR_TIMEOUT 30 41 42 /* 43 * Logical drive information. 44 */ 45 struct amr_logdrive { 46 u_int al_size; 47 u_short al_state; 48 u_short al_properties; 49 struct device *al_dv; 50 }; 51 52 /* 53 * Per-controller state. 54 */ 55 struct amr_softc { 56 struct device amr_dv; 57 bus_space_tag_t amr_iot; 58 bus_space_handle_t amr_ioh; 59 bus_size_t amr_ios; 60 bus_dma_tag_t amr_dmat; 61 pci_chipset_tag_t amr_pc; 62 void *amr_ih; 63 struct lwp *amr_thread; 64 int amr_flags; 65 66 struct amr_mailbox *amr_mbox; 67 bus_addr_t amr_mbox_paddr; 68 bus_dmamap_t amr_dmamap; 69 bus_dma_segment_t amr_dmaseg; 70 int amr_dmasize; 71 void *amr_enqbuf; 72 73 struct amr_sgentry *amr_sgls; 74 bus_addr_t amr_sgls_paddr; 75 76 struct amr_ccb *amr_ccbs; 77 SLIST_HEAD(, amr_ccb) amr_ccb_freelist; 78 SIMPLEQ_HEAD(, amr_ccb) amr_ccb_queue; 79 TAILQ_HEAD(, amr_ccb) amr_ccb_active; 80 int amr_maxqueuecnt; 81 82 int (*amr_get_work)(struct amr_softc *, struct amr_mailbox_resp *); 83 int (*amr_submit)(struct amr_softc *sc, struct amr_ccb *); 84 85 int amr_numdrives; 86 struct amr_logdrive amr_drive[AMR_MAX_UNITS]; 87 }; 88 89 /* What resources are allocated? */ 90 #define AMRF_INTR 0x00000001 91 #define AMRF_DMA_LOAD 0x00000002 92 #define AMRF_DMA_MAP 0x00000004 93 #define AMRF_DMA_ALLOC 0x00000008 94 #define AMRF_DMA_CREATE 0x00000010 95 #define AMRF_PCI_INTR 0x00000020 96 #define AMRF_PCI_REGS 0x00000040 97 #define AMRF_CCBS 0x00000080 98 #define AMRF_ENQBUF 0x00000100 99 #define AMRF_THREAD 0x00000200 100 101 /* General flags. */ 102 #define AMRF_THREAD_EXIT 0x00010000 103 #define AMRF_OPEN 0x00020000 104 105 /* 106 * Command control block. 107 */ 108 struct amr_ccb { 109 union { 110 SIMPLEQ_ENTRY(amr_ccb) simpleq; 111 SLIST_ENTRY(amr_ccb) slist; 112 TAILQ_ENTRY(amr_ccb) tailq; 113 } ac_chain; 114 115 u_int ac_flags; 116 u_int ac_status; 117 u_int ac_ident; 118 u_int ac_xfer_size; 119 time_t ac_start_time; 120 bus_dmamap_t ac_xfer_map; 121 void (*ac_handler)(struct amr_ccb *); 122 void *ac_context; 123 struct device *ac_dv; 124 struct amr_mailbox_cmd ac_cmd; 125 }; 126 #define AC_XFER_IN 0x01 /* Map describes inbound xfer */ 127 #define AC_XFER_OUT 0x02 /* Map describes outbound xfer */ 128 #define AC_COMPLETE 0x04 /* Command completed */ 129 #define AC_ACTIVE 0x08 /* Command active */ 130 #define AC_NOSGL 0x10 /* No scatter/gather list */ 131 #define AC_MOAN 0x20 /* We have already moaned */ 132 133 struct amr_attach_args { 134 int amra_unit; 135 }; 136 137 int amr_ccb_alloc(struct amr_softc *, struct amr_ccb **); 138 void amr_ccb_enqueue(struct amr_softc *, struct amr_ccb *); 139 void amr_ccb_free(struct amr_softc *, struct amr_ccb *); 140 int amr_ccb_map(struct amr_softc *, struct amr_ccb *, void *, int, int); 141 int amr_ccb_poll(struct amr_softc *, struct amr_ccb *, int); 142 void amr_ccb_unmap(struct amr_softc *, struct amr_ccb *); 143 int amr_ccb_wait(struct amr_softc *, struct amr_ccb *); 144 const char *amr_drive_state(int, int *); 145 146 extern int amr_max_xfer; 147 148 #endif /* !_PCI_AMRVAR_H_ */ 149