| 1 | /* $NetBSD: amrvar.h,v 1.10 2015/03/02 15:26:57 christos 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 | device_t al_dv; |
| 50 | }; |
| 51 | |
| 52 | /* |
| 53 | * Per-controller state. |
| 54 | */ |
| 55 | struct amr_softc { |
| 56 | device_t 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 | kmutex_t amr_mutex; |
| 86 | |
| 87 | int amr_numdrives; |
| 88 | struct amr_logdrive amr_drive[AMR_MAX_UNITS]; |
| 89 | }; |
| 90 | |
| 91 | /* What resources are allocated? */ |
| 92 | #define AMRF_INTR 0x00000001 |
| 93 | #define AMRF_DMA_LOAD 0x00000002 |
| 94 | #define AMRF_DMA_MAP 0x00000004 |
| 95 | #define AMRF_DMA_ALLOC 0x00000008 |
| 96 | #define AMRF_DMA_CREATE 0x00000010 |
| 97 | #define AMRF_PCI_INTR 0x00000020 |
| 98 | #define AMRF_PCI_REGS 0x00000040 |
| 99 | #define AMRF_CCBS 0x00000080 |
| 100 | #define AMRF_ENQBUF 0x00000100 |
| 101 | #define AMRF_THREAD 0x00000200 |
| 102 | |
| 103 | /* General flags. */ |
| 104 | #define AMRF_THREAD_EXIT 0x00010000 |
| 105 | #define AMRF_OPEN 0x00020000 |
| 106 | |
| 107 | /* |
| 108 | * Command control block. |
| 109 | */ |
| 110 | struct amr_ccb { |
| 111 | union { |
| 112 | SIMPLEQ_ENTRY(amr_ccb) simpleq; |
| 113 | SLIST_ENTRY(amr_ccb) slist; |
| 114 | TAILQ_ENTRY(amr_ccb) tailq; |
| 115 | } ac_chain; |
| 116 | |
| 117 | u_int ac_flags; |
| 118 | u_int ac_status; |
| 119 | u_int ac_ident; |
| 120 | u_int ac_xfer_size; |
| 121 | time_t ac_start_time; |
| 122 | bus_dmamap_t ac_xfer_map; |
| 123 | void (*ac_handler)(struct amr_ccb *); |
| 124 | void *ac_context; |
| 125 | device_t ac_dv; |
| 126 | struct amr_mailbox_cmd ac_cmd; |
| 127 | kmutex_t ac_mutex; |
| 128 | kcondvar_t ac_cv; |
| 129 | }; |
| 130 | #define AC_XFER_IN 0x01 /* Map describes inbound xfer */ |
| 131 | #define AC_XFER_OUT 0x02 /* Map describes outbound xfer */ |
| 132 | #define AC_COMPLETE 0x04 /* Command completed */ |
| 133 | #define AC_ACTIVE 0x08 /* Command active */ |
| 134 | #define AC_NOSGL 0x10 /* No scatter/gather list */ |
| 135 | #define AC_MOAN 0x20 /* We have already moaned */ |
| 136 | |
| 137 | struct amr_attach_args { |
| 138 | int amra_unit; |
| 139 | }; |
| 140 | |
| 141 | int amr_ccb_alloc(struct amr_softc *, struct amr_ccb **); |
| 142 | void amr_ccb_enqueue(struct amr_softc *, struct amr_ccb *); |
| 143 | void amr_ccb_free(struct amr_softc *, struct amr_ccb *); |
| 144 | int amr_ccb_map(struct amr_softc *, struct amr_ccb *, void *, int, int); |
| 145 | int amr_ccb_poll(struct amr_softc *, struct amr_ccb *, int); |
| 146 | void amr_ccb_unmap(struct amr_softc *, struct amr_ccb *); |
| 147 | int amr_ccb_wait(struct amr_softc *, struct amr_ccb *); |
| 148 | const char *amr_drive_state(int, int *); |
| 149 | |
| 150 | extern int amr_max_xfer; |
| 151 | |
| 152 | #endif /* !_PCI_AMRVAR_H_ */ |
| 153 | |