1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1999-2000 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_1394_ADAPTERS_HCI1394_BUF_H 28*0Sstevel@tonic-gate #define _SYS_1394_ADAPTERS_HCI1394_BUF_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate /* 33*0Sstevel@tonic-gate * hci1394_buf.h 34*0Sstevel@tonic-gate * These routines handle IO bound memory. They include routines to alloc and 35*0Sstevel@tonic-gate * free. IO bound memory and a routine to get the adapter's default dma 36*0Sstevel@tonic-gate * attributes. 37*0Sstevel@tonic-gate */ 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #ifdef __cplusplus 40*0Sstevel@tonic-gate extern "C" { 41*0Sstevel@tonic-gate #endif 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #include <sys/ddi.h> 44*0Sstevel@tonic-gate #include <sys/modctl.h> 45*0Sstevel@tonic-gate #include <sys/sunddi.h> 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* 49*0Sstevel@tonic-gate * Input parameters into buf_alloc(). 50*0Sstevel@tonic-gate * bp_length - size of buffer to alloc and map into IO space. 51*0Sstevel@tonic-gate * bp_max_cookies - maximum number of cookies we can handle. 52*0Sstevel@tonic-gate * bp_alignment - buffer alignment requirements. 53*0Sstevel@tonic-gate * 54*0Sstevel@tonic-gate * bp_max_cookies overwrites the adapter's default dma_attr_sgllen setting. 55*0Sstevel@tonic-gate * bp_alignment overwrites the adapter's default dma_attr_align setting. 56*0Sstevel@tonic-gate */ 57*0Sstevel@tonic-gate typedef struct hci1394_buf_parms_s { 58*0Sstevel@tonic-gate size_t bp_length; 59*0Sstevel@tonic-gate uint_t bp_max_cookies; 60*0Sstevel@tonic-gate uint64_t bp_alignment; 61*0Sstevel@tonic-gate } hci1394_buf_parms_t; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate /* 64*0Sstevel@tonic-gate * Output from buf_alloc(). This structure contains information 65*0Sstevel@tonic-gate * about the buffer allocated. 66*0Sstevel@tonic-gate */ 67*0Sstevel@tonic-gate typedef struct hci1394_buf_info_s { 68*0Sstevel@tonic-gate ddi_dma_cookie_t bi_cookie; /* ddi_dma_addr_bind_handle */ 69*0Sstevel@tonic-gate uint_t bi_cookie_count; /* ddi_dma_addr_bind_handle */ 70*0Sstevel@tonic-gate caddr_t bi_kaddr; /* ddi_dma_mem_alloc */ 71*0Sstevel@tonic-gate size_t bi_length; /* copy of input parms bp_length */ 72*0Sstevel@tonic-gate size_t bi_real_length; /* ddi_dma_mem_alloc */ 73*0Sstevel@tonic-gate ddi_acc_handle_t bi_handle; /* ddi_dma_mem_alloc */ 74*0Sstevel@tonic-gate ddi_dma_handle_t bi_dma_handle; /* ddi_dma_alloc_handle */ 75*0Sstevel@tonic-gate } hci1394_buf_info_t; 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate /* 78*0Sstevel@tonic-gate * private structure to track buffer information 79*0Sstevel@tonic-gate */ 80*0Sstevel@tonic-gate typedef struct hci1394_buf_s { 81*0Sstevel@tonic-gate ddi_acc_handle_t bu_handle; 82*0Sstevel@tonic-gate ddi_dma_handle_t bu_dma_handle; 83*0Sstevel@tonic-gate hci1394_drvinfo_t *bu_drvinfo; 84*0Sstevel@tonic-gate } hci1394_buf_t; 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* 87*0Sstevel@tonic-gate * handle passed back from alloc() and used for free() 88*0Sstevel@tonic-gate */ 89*0Sstevel@tonic-gate typedef struct hci1394_buf_s *hci1394_buf_handle_t; 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate void hci1394_buf_attr_get(ddi_dma_attr_t *dma_attr); 93*0Sstevel@tonic-gate int hci1394_buf_alloc(hci1394_drvinfo_t *drvinfo, hci1394_buf_parms_t *parms, 94*0Sstevel@tonic-gate hci1394_buf_info_t *info, hci1394_buf_handle_t *handle); 95*0Sstevel@tonic-gate void hci1394_buf_free(hci1394_buf_handle_t *handle); 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate /* warlock directives */ 98*0Sstevel@tonic-gate _NOTE(SCHEME_PROTECTS_DATA("Single user", hci1394_buf_info_s hci1394_buf_s)) 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate #ifdef __cplusplus 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate #endif 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate #endif /* _SYS_1394_ADAPTERS_HCI1394_BUF_H */ 105