1114902Sscottl/*- 2119418Sobrien * Written by: David Jeffery 3114902Sscottl * Copyright (c) 2002 Adaptec Inc. 4114902Sscottl * All rights reserved. 5114902Sscottl * 6114902Sscottl * Redistribution and use in source and binary forms, with or without 7114902Sscottl * modification, are permitted provided that the following conditions 8114902Sscottl * are met: 9114902Sscottl * 1. Redistributions of source code must retain the above copyright 10114902Sscottl * notice, this list of conditions and the following disclaimer. 11114902Sscottl * 2. Redistributions in binary form must reproduce the above copyright 12114902Sscottl * notice, this list of conditions and the following disclaimer in the 13114902Sscottl * documentation and/or other materials provided with the distribution. 14114902Sscottl * 15114902Sscottl * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16114902Sscottl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17114902Sscottl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18114902Sscottl * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19114902Sscottl * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20114902Sscottl * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21114902Sscottl * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22114902Sscottl * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23114902Sscottl * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24114902Sscottl * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25114902Sscottl * SUCH DAMAGE. 26114902Sscottl */ 27114902Sscottl 28119418Sobrien#include <sys/cdefs.h> 29119418Sobrien__FBSDID("$FreeBSD$"); 30114902Sscottl 31152919Sscottl#include <dev/ips/ipsreg.h> 32114902Sscottl#include <dev/ips/ips.h> 33114902Sscottl#include <dev/ips/ips_ioctl.h> 34119418Sobrien 35114902Sscottlstatic void ips_ioctl_finish(ips_command_t *command) 36114902Sscottl{ 37114902Sscottl ips_ioctl_t *ioctl_cmd = command->arg; 38114902Sscottl if(ioctl_cmd->readwrite & IPS_IOCTL_READ){ 39114902Sscottl bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap, 40114902Sscottl BUS_DMASYNC_POSTREAD); 41114902Sscottl } else if(ioctl_cmd->readwrite & IPS_IOCTL_WRITE){ 42114902Sscottl bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap, 43114902Sscottl BUS_DMASYNC_POSTWRITE); 44114902Sscottl } 45114902Sscottl bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap, 46114902Sscottl BUS_DMASYNC_POSTWRITE); 47114902Sscottl bus_dmamap_unload(ioctl_cmd->dmatag, ioctl_cmd->dmamap); 48114902Sscottl ioctl_cmd->status.value = command->status.value; 49114902Sscottl ips_insert_free_cmd(command->sc, command); 50114902Sscottl} 51114902Sscottl 52114902Sscottlstatic void ips_ioctl_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, int error) 53114902Sscottl{ 54114902Sscottl ips_command_t *command = cmdptr; 55114902Sscottl ips_ioctl_t *ioctl_cmd = command->arg; 56114902Sscottl ips_generic_cmd *command_buffer = command->command_buffer; 57114902Sscottl if(error){ 58150535Sscottl ips_set_error(command, error); 59114902Sscottl return; 60114902Sscottl } 61114902Sscottl command_buffer->id = command->id; 62114902Sscottl command_buffer->buffaddr = segments[0].ds_addr; 63114902Sscottl if(ioctl_cmd->readwrite & IPS_IOCTL_WRITE){ 64114902Sscottl bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap, 65114902Sscottl BUS_DMASYNC_PREWRITE); 66114902Sscottl } else if(ioctl_cmd->readwrite & IPS_IOCTL_READ){ 67114902Sscottl bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap, 68114902Sscottl BUS_DMASYNC_PREREAD); 69114902Sscottl } 70114902Sscottl bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap, 71114902Sscottl BUS_DMASYNC_PREWRITE); 72114902Sscottl command->sc->ips_issue_cmd(command); 73114902Sscottl} 74114902Sscottlstatic int ips_ioctl_start(ips_command_t *command) 75114902Sscottl{ 76114902Sscottl ips_ioctl_t *ioctl_cmd = command->arg; 77114902Sscottl memcpy(command->command_buffer, ioctl_cmd->command_buffer, 78114902Sscottl sizeof(ips_generic_cmd)); 79114902Sscottl command->callback = ips_ioctl_finish; 80114902Sscottl bus_dmamap_load(ioctl_cmd->dmatag, ioctl_cmd->dmamap, 81114902Sscottl ioctl_cmd->data_buffer,ioctl_cmd->datasize, 82114902Sscottl ips_ioctl_callback, command, 0); 83114902Sscottl return 0; 84114902Sscottl} 85114902Sscottl 86114902Sscottlstatic int ips_ioctl_cmd(ips_softc_t *sc, ips_ioctl_t *ioctl_cmd, ips_user_request *user_request) 87114902Sscottl{ 88140923Sscottl ips_command_t *command; 89114902Sscottl int error = EINVAL; 90115554Sphk 91115554Sphk if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 92115554Sphk /* alignment */ 1, 93115554Sphk /* boundary */ 0, 94115554Sphk /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 95115554Sphk /* highaddr */ BUS_SPACE_MAXADDR, 96115554Sphk /* filter */ NULL, 97115554Sphk /* filterarg */ NULL, 98115554Sphk /* maxsize */ ioctl_cmd->datasize, 99115554Sphk /* numsegs */ 1, 100115554Sphk /* maxsegsize*/ ioctl_cmd->datasize, 101115554Sphk /* flags */ 0, 102140923Sscottl /* lockfunc */ NULL, 103140923Sscottl /* lockarg */ NULL, 104115554Sphk &ioctl_cmd->dmatag) != 0) { 105114902Sscottl return ENOMEM; 106114902Sscottl } 107114902Sscottl if(bus_dmamem_alloc(ioctl_cmd->dmatag, &ioctl_cmd->data_buffer, 108114902Sscottl 0, &ioctl_cmd->dmamap)){ 109114902Sscottl error = ENOMEM; 110114902Sscottl goto exit; 111114902Sscottl } 112114902Sscottl if(copyin(user_request->data_buffer,ioctl_cmd->data_buffer, 113114902Sscottl ioctl_cmd->datasize)) 114114902Sscottl goto exit; 115114902Sscottl ioctl_cmd->status.value = 0xffffffff; 116140923Sscottl mtx_lock(&sc->queue_mtx); 117140923Sscottl if((error = ips_get_free_cmd(sc, &command, 0)) > 0){ 118114902Sscottl error = ENOMEM; 119140923Sscottl mtx_unlock(&sc->queue_mtx); 120114902Sscottl goto exit; 121114902Sscottl } 122140923Sscottl command->arg = ioctl_cmd; 123140923Sscottl ips_ioctl_start(command); 124114902Sscottl while( ioctl_cmd->status.value == 0xffffffff) 125140923Sscottl msleep(ioctl_cmd, &sc->queue_mtx, 0, "ips", hz/10); 126150535Sscottl if(COMMAND_ERROR(ioctl_cmd)) 127114902Sscottl error = EIO; 128114902Sscottl else 129114902Sscottl error = 0; 130140923Sscottl mtx_unlock(&sc->queue_mtx); 131114902Sscottl if(copyout(ioctl_cmd->data_buffer, user_request->data_buffer, 132114902Sscottl ioctl_cmd->datasize)) 133114902Sscottl error = EINVAL; 134150535Sscottl mtx_lock(&sc->queue_mtx); 135150535Sscottl ips_insert_free_cmd(sc, command); 136150535Sscottl mtx_unlock(&sc->queue_mtx); 137150535Sscottl 138114902Sscottlexit: bus_dmamem_free(ioctl_cmd->dmatag, ioctl_cmd->data_buffer, 139114902Sscottl ioctl_cmd->dmamap); 140114902Sscottl bus_dma_tag_destroy(ioctl_cmd->dmatag); 141114902Sscottl return error; 142114902Sscottl} 143114902Sscottl 144114902Sscottl 145114902Sscottlint ips_ioctl_request(ips_softc_t *sc, u_long ioctl_request, caddr_t addr, int32_t flags){ 146114902Sscottl int error = EINVAL; 147114902Sscottl ips_ioctl_t *ioctl_cmd; 148114902Sscottl ips_user_request *user_request; 149114902Sscottl switch(ioctl_request){ 150114902Sscottl case IPS_USER_CMD: 151114902Sscottl user_request = (ips_user_request *)addr; 152129859Sscottl ioctl_cmd = malloc(sizeof(ips_ioctl_t), M_IPSBUF, M_WAITOK); 153114902Sscottl ioctl_cmd->command_buffer = malloc(sizeof(ips_generic_cmd), 154129859Sscottl M_IPSBUF, M_WAITOK); 155114902Sscottl if(copyin(user_request->command_buffer, 156114902Sscottl ioctl_cmd->command_buffer, sizeof(ips_generic_cmd))){ 157129859Sscottl free(ioctl_cmd->command_buffer, M_IPSBUF); 158129859Sscottl free(ioctl_cmd, M_IPSBUF); 159114902Sscottl break; 160114902Sscottl } 161114902Sscottl ioctl_cmd->readwrite = IPS_IOCTL_READ | IPS_IOCTL_WRITE; 162114902Sscottl ioctl_cmd->datasize = IPS_IOCTL_BUFFER_SIZE; 163114902Sscottl error = ips_ioctl_cmd(sc, ioctl_cmd, user_request); 164129859Sscottl free(ioctl_cmd->command_buffer, M_IPSBUF); 165129859Sscottl free(ioctl_cmd, M_IPSBUF); 166114902Sscottl break; 167114902Sscottl } 168114902Sscottl 169114902Sscottl return error; 170114902Sscottl} 171