ath_osdep.c revision 8033:142c11860489
1/* 2 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6/* 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 15 * redistribution must be conditioned upon including a substantially 16 * similar Disclaimer requirement for further binary redistribution. 17 * 3. Neither the names of the above-listed copyright holders nor the names 18 * of any contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 25 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 26 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 27 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 30 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGES. 33 * 34 */ 35 36#include <sys/param.h> 37#include <sys/types.h> 38#include <sys/cmn_err.h> 39#include <sys/kmem.h> 40#include <sys/ddi.h> 41#include <sys/sunddi.h> 42#include <sys/varargs.h> 43#include "ath_hal.h" 44#include "ath_impl.h" 45 46struct ath_halfix { 47 void *p; 48 size_t size; 49}; 50 51#define ATH_MAX_HALMEM 1024 52static struct ath_halfix ath_halfix[ATH_MAX_HALMEM]; 53 54/* HAL layer needs these definitions */ 55int ath_hal_dma_beacon_response_time = 2; /* in TU's */ 56int ath_hal_sw_beacon_response_time = 10; /* in TU's */ 57int ath_hal_additional_swba_backoff = 0; /* in TU's */ 58 59/* 60 * Print/log message support. 61 */ 62 63void 64ath_hal_printf(struct ath_hal *ah, const char *fmt, ...) 65{ 66 va_list ap; 67 68 _NOTE(ARGUNUSED(ah)) 69 va_start(ap, fmt); 70 vcmn_err(CE_CONT, fmt, ap); 71 va_end(ap); 72} 73 74/* 75 * Delay n microseconds. 76 */ 77void 78ath_hal_delay(int n) 79{ 80 drv_usecwait(n); 81} 82 83/* 84 * ath_hal_malloc() and ath_hal_free() are called 85 * within ath_hal.o. We must record the size of 86 * the memory alloced, so ath_hal_free() can get 87 * the size and then calls kmem_free(). 88 */ 89void * 90ath_hal_malloc(size_t size) 91{ 92 void *p; 93 int i; 94 95 for (i = 0; i < ATH_MAX_HALMEM; i++) { 96 if (ath_halfix[i].p == NULL) 97 break; 98 } 99 if (i >= ATH_MAX_HALMEM) { 100 ath_problem("ath: ath_hal_malloc(): too many malloc\n"); 101 return (NULL); 102 } 103 p = kmem_zalloc(size, KM_SLEEP); 104 ath_halfix[i].p = p; 105 ath_halfix[i].size = size; 106 ATH_DEBUG((ATH_DBG_OSDEP, "ath: ath_hal_malloc(): " 107 "%d: p=%p, size=%d\n", i, p, size)); 108 return (p); 109} 110 111void 112ath_hal_free(void* p) 113{ 114 int i; 115 for (i = 0; i < ATH_MAX_HALMEM; i++) { 116 if (ath_halfix[i].p == p) 117 break; 118 } 119 if (i >= ATH_MAX_HALMEM) { 120 ath_problem("ath: ath_hal_free(): no record for %p\n", p); 121 return; 122 } 123 kmem_free(p, ath_halfix[i].size); 124 ath_halfix[i].p = NULL; 125 ATH_DEBUG((ATH_DBG_OSDEP, "ath: ath_hal_free(): %d: p=%p, size=%d\n", 126 i, p, ath_halfix[i].size)); 127} 128 129void * 130ath_hal_memcpy(void *dst, const void *src, size_t n) 131{ 132 bcopy(src, dst, n); 133 return (dst); 134} 135 136void 137ath_hal_memzero(void *dst, size_t n) 138{ 139 bzero(dst, n); 140} 141 142void 143ath_halfix_init(void) 144{ 145 int i; 146 147 for (i = 0; i < ATH_MAX_HALMEM; i++) 148 ath_halfix[i].p = NULL; 149} 150 151void 152ath_halfix_finit(void) 153{ 154 int i; 155 156 for (i = 0; i < ATH_MAX_HALMEM; i++) 157 if (ath_halfix[i].p != NULL) { 158 kmem_free(ath_halfix[i].p, ath_halfix[i].size); 159 ATH_DEBUG((ATH_DBG_OSDEP, "ath_halfix: " 160 "Free %d: p=%x size=%d\n", 161 i, ath_halfix[i].p, ath_halfix[i].size)); 162 } 163} 164