twevar.h revision 1.4.2.5
1 1.4.2.5 bouyer /* $NetBSD: twevar.h,v 1.4.2.5 2001/03/12 13:31:17 bouyer Exp $ */ 2 1.4.2.2 bouyer 3 1.4.2.2 bouyer /*- 4 1.4.2.4 bouyer * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. 5 1.4.2.2 bouyer * All rights reserved. 6 1.4.2.2 bouyer * 7 1.4.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.4.2.2 bouyer * by Andrew Doran. 9 1.4.2.2 bouyer * 10 1.4.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.4.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.4.2.2 bouyer * are met: 13 1.4.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.4.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.4.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.4.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.4.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.4.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.4.2.2 bouyer * must display the following acknowledgement: 20 1.4.2.2 bouyer * This product includes software developed by the NetBSD 21 1.4.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.4.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.4.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.4.2.2 bouyer * from this software without specific prior written permission. 25 1.4.2.2 bouyer * 26 1.4.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.4.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.4.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.4.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.4.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.4.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.4.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.4.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.4.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.4.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.4.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.4.2.2 bouyer */ 38 1.4.2.2 bouyer 39 1.4.2.2 bouyer #ifndef _PCI_TWEVAR_H_ 40 1.4.2.2 bouyer #define _PCI_TWEVAR_H_ 41 1.4.2.2 bouyer 42 1.4.2.2 bouyer #include "locators.h" 43 1.4.2.2 bouyer 44 1.4.2.4 bouyer #define TWE_MAX_QUEUECNT 129 45 1.4.2.2 bouyer 46 1.4.2.3 bouyer /* XXX NBPG */ 47 1.4.2.2 bouyer #if TWE_SG_SIZE > (((MAXPHYS + NBPG - 1) / NBPG) + 1) 48 1.4.2.2 bouyer #define TWE_MAX_SEGS (((MAXPHYS + NBPG - 1) / NBPG) + 1) 49 1.4.2.2 bouyer #else 50 1.4.2.2 bouyer #define TWE_MAX_SEGS TWE_SG_SIZE 51 1.4.2.2 bouyer #endif 52 1.4.2.4 bouyer #define TWE_MAX_XFER ((TWE_MAX_SEGS - 1) * NBPG) 53 1.4.2.2 bouyer 54 1.4.2.2 bouyer /* Per-controller state. */ 55 1.4.2.2 bouyer struct twe_softc { 56 1.4.2.2 bouyer struct device sc_dv; 57 1.4.2.2 bouyer bus_space_tag_t sc_iot; 58 1.4.2.2 bouyer bus_space_handle_t sc_ioh; 59 1.4.2.2 bouyer bus_dma_tag_t sc_dmat; 60 1.4.2.2 bouyer bus_dmamap_t sc_dmamap; 61 1.4.2.2 bouyer void *sc_ih; 62 1.4.2.2 bouyer caddr_t sc_cmds; 63 1.4.2.2 bouyer bus_addr_t sc_cmds_paddr; 64 1.4.2.3 bouyer int sc_nccbs; 65 1.4.2.2 bouyer struct twe_ccb *sc_ccbs; 66 1.4.2.2 bouyer SIMPLEQ_HEAD(, twe_ccb) sc_ccb_queue; 67 1.4.2.2 bouyer SLIST_HEAD(, twe_ccb) sc_ccb_freelist; 68 1.4.2.5 bouyer int sc_flags; 69 1.4.2.3 bouyer int sc_nunits; 70 1.4.2.2 bouyer u_int sc_dsize[TWE_MAX_UNITS]; 71 1.4.2.2 bouyer }; 72 1.4.2.5 bouyer #define TWEF_AEN 0x01 /* retrieving an AEN */ 73 1.4.2.2 bouyer 74 1.4.2.2 bouyer /* Optional per-command context. */ 75 1.4.2.2 bouyer struct twe_context { 76 1.4.2.2 bouyer void (*tx_handler)(struct twe_ccb *, int); 77 1.4.2.2 bouyer void *tx_context; 78 1.4.2.2 bouyer struct device *tx_dv; 79 1.4.2.2 bouyer }; 80 1.4.2.2 bouyer 81 1.4.2.2 bouyer /* Command control block. */ 82 1.4.2.2 bouyer struct twe_ccb { 83 1.4.2.2 bouyer union { 84 1.4.2.2 bouyer SIMPLEQ_ENTRY(twe_ccb) simpleq; 85 1.4.2.2 bouyer SLIST_ENTRY(twe_ccb) slist; 86 1.4.2.2 bouyer } ccb_chain; 87 1.4.2.2 bouyer struct twe_cmd *ccb_cmd; 88 1.4.2.2 bouyer int ccb_cmdid; 89 1.4.2.2 bouyer int ccb_flags; 90 1.4.2.2 bouyer void *ccb_data; 91 1.4.2.2 bouyer int ccb_datasize; 92 1.4.2.2 bouyer vaddr_t ccb_abuf; 93 1.4.2.2 bouyer bus_dmamap_t ccb_dmamap_xfer; 94 1.4.2.2 bouyer struct twe_context ccb_tx; 95 1.4.2.2 bouyer }; 96 1.4.2.2 bouyer #define TWE_CCB_DATA_IN 0x01 /* Map describes inbound xfer */ 97 1.4.2.2 bouyer #define TWE_CCB_DATA_OUT 0x02 /* Map describes outbound xfer */ 98 1.4.2.2 bouyer #define TWE_CCB_COMPLETE 0x04 /* Command completed */ 99 1.4.2.2 bouyer #define TWE_CCB_ACTIVE 0x08 /* Command active */ 100 1.4.2.3 bouyer #define TWE_CCB_PARAM 0x10 /* For parameter retrieval */ 101 1.4.2.3 bouyer #define TWE_CCB_ALLOCED 0x20 /* CCB allocated */ 102 1.4.2.2 bouyer 103 1.4.2.2 bouyer struct twe_attach_args { 104 1.4.2.2 bouyer int twea_unit; 105 1.4.2.2 bouyer }; 106 1.4.2.2 bouyer 107 1.4.2.2 bouyer #define tweacf_unit cf_loc[TWECF_UNIT] 108 1.4.2.2 bouyer 109 1.4.2.2 bouyer int twe_ccb_alloc(struct twe_softc *, struct twe_ccb **, int); 110 1.4.2.2 bouyer void twe_ccb_enqueue(struct twe_softc *sc, struct twe_ccb *ccb); 111 1.4.2.2 bouyer void twe_ccb_free(struct twe_softc *sc, struct twe_ccb *); 112 1.4.2.2 bouyer int twe_ccb_map(struct twe_softc *, struct twe_ccb *); 113 1.4.2.2 bouyer int twe_ccb_poll(struct twe_softc *, struct twe_ccb *, int); 114 1.4.2.2 bouyer int twe_ccb_submit(struct twe_softc *, struct twe_ccb *); 115 1.4.2.2 bouyer void twe_ccb_unmap(struct twe_softc *, struct twe_ccb *); 116 1.4.2.2 bouyer 117 1.4.2.2 bouyer #endif /* !_PCI_TWEVAR_H_ */ 118
Indexes created Thu Oct 02 07:10:07 GMT 2025