cacvar.h revision 1.17
1 /* $NetBSD: cacvar.h,v 1.17 2008/03/14 03:30:19 mhitch Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 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 _IC_CACVAR_H_ 40 #define _IC_CACVAR_H_ 41 42 #include <sys/mutex.h> 43 #include <sys/condvar.h> 44 45 #include <dev/sysmon/sysmonvar.h> 46 #include <sys/envsys.h> 47 48 #define CAC_MAX_CCBS 256 49 #define CAC_MAX_XFER (0xffff * 512) 50 #define CAC_SG_SIZE 32 51 52 #define cac_inb(sc, port) \ 53 bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, port) 54 #define cac_inw(sc, port) \ 55 bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, port) 56 #define cac_inl(sc, port) \ 57 bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, port) 58 #define cac_outb(sc, port, val) \ 59 bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, port, val) 60 #define cac_outw(sc, port, val) \ 61 bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, port, val) 62 #define cac_outl(sc, port, val) \ 63 bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, port, val) 64 65 /* 66 * Stupid macros to deal with alignment/endianness issues. 67 */ 68 69 #define CAC_GET1(x) \ 70 (((u_char *)&(x))[0]) 71 #define CAC_GET2(x) \ 72 (((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8)) 73 #define CAC_GET4(x) \ 74 ((((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8)) | \ 75 (((u_char *)&(x))[2] << 16 | (((u_char *)&(x))[3] << 24))) 76 77 struct cac_softc; 78 struct cac_ccb; 79 80 struct cac_context { 81 void (*cc_handler)(struct device *, void *, int); 82 struct device *cc_dv; 83 void *cc_context; 84 }; 85 86 struct cac_ccb { 87 /* Data the controller will touch - 276 bytes */ 88 struct cac_hdr ccb_hdr; 89 struct cac_req ccb_req; 90 struct cac_sgb ccb_seg[CAC_SG_SIZE]; 91 92 /* Data the controller won't touch */ 93 int ccb_flags; 94 int ccb_datasize; 95 paddr_t ccb_paddr; 96 bus_dmamap_t ccb_dmamap_xfer; 97 SIMPLEQ_ENTRY(cac_ccb) ccb_chain; 98 struct cac_context ccb_context; 99 }; 100 101 #define CAC_CCB_DATA_IN 0x0001 /* Map describes inbound xfer */ 102 #define CAC_CCB_DATA_OUT 0x0002 /* Map describes outbound xfer */ 103 #define CAC_CCB_ACTIVE 0x0004 /* Command submitted to controller */ 104 105 struct cac_linkage { 106 struct cac_ccb *(*cl_completed)(struct cac_softc *); 107 int (*cl_fifo_full)(struct cac_softc *); 108 void (*cl_intr_enable)(struct cac_softc *, int); 109 int (*cl_intr_pending)(struct cac_softc *); 110 void (*cl_submit)(struct cac_softc *, struct cac_ccb *); 111 }; 112 113 struct cac_softc { 114 struct device sc_dv; 115 kmutex_t sc_mutex; 116 bus_space_tag_t sc_iot; 117 bus_space_handle_t sc_ioh; 118 bus_dma_tag_t sc_dmat; 119 bus_dmamap_t sc_dmamap; 120 int sc_nunits; 121 void *sc_ih; 122 void * sc_ccbs; 123 paddr_t sc_ccbs_paddr; 124 SIMPLEQ_HEAD(, cac_ccb) sc_ccb_free; 125 SIMPLEQ_HEAD(, cac_ccb) sc_ccb_queue; 126 kcondvar_t sc_ccb_cv; 127 struct cac_linkage sc_cl; 128 129 /* scsi ioctl from sd device */ 130 int (*sc_ioctl)(struct device *, u_long, void *); 131 132 struct sysmon_envsys *sc_sme; 133 envsys_data_t *sc_sensor; 134 }; 135 136 /* XXX These have to become spinlocks in case of fine SMP */ 137 #define CAC_LOCK(sc) splbio() 138 #define CAC_UNLOCK(sc, lock) splx(lock) 139 typedef int cac_lock_t; 140 141 struct cac_attach_args { 142 int caca_unit; 143 }; 144 145 int cac_cmd(struct cac_softc *, int, void *, int, int, int, int, 146 struct cac_context *); 147 int cac_init(struct cac_softc *, const char *, int); 148 int cac_intr(void *); 149 150 extern const struct cac_linkage cac_l0; 151 152 #endif /* !_IC_CACVAR_H_ */ 153
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