2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Written by: David Jeffery
5 * Copyright (c) 2002 Adaptec Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <dev/ips/ipsreg.h>
34 #include <dev/ips/ips.h>
35 #include <dev/ips/ips_ioctl.h>
37 static void ips_ioctl_finish(ips_command_t *command)
39 ips_ioctl_t *ioctl_cmd = command->arg;
40 if(ioctl_cmd->readwrite & IPS_IOCTL_READ){
41 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
42 BUS_DMASYNC_POSTREAD);
43 } else if(ioctl_cmd->readwrite & IPS_IOCTL_WRITE){
44 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
45 BUS_DMASYNC_POSTWRITE);
47 bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap,
48 BUS_DMASYNC_POSTWRITE);
49 bus_dmamap_unload(ioctl_cmd->dmatag, ioctl_cmd->dmamap);
50 ioctl_cmd->status.value = command->status.value;
51 ips_insert_free_cmd(command->sc, command);
54 static void ips_ioctl_callback(void *cmdptr, bus_dma_segment_t *segments,int segnum, int error)
56 ips_command_t *command = cmdptr;
57 ips_ioctl_t *ioctl_cmd = command->arg;
58 ips_generic_cmd *command_buffer = command->command_buffer;
60 ips_set_error(command, error);
63 command_buffer->id = command->id;
64 command_buffer->buffaddr = segments[0].ds_addr;
65 if(ioctl_cmd->readwrite & IPS_IOCTL_WRITE){
66 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
67 BUS_DMASYNC_PREWRITE);
68 } else if(ioctl_cmd->readwrite & IPS_IOCTL_READ){
69 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
72 bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap,
73 BUS_DMASYNC_PREWRITE);
74 command->sc->ips_issue_cmd(command);
76 static int ips_ioctl_start(ips_command_t *command)
78 ips_ioctl_t *ioctl_cmd = command->arg;
79 memcpy(command->command_buffer, ioctl_cmd->command_buffer,
80 sizeof(ips_generic_cmd));
81 command->callback = ips_ioctl_finish;
82 bus_dmamap_load(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
83 ioctl_cmd->data_buffer,ioctl_cmd->datasize,
84 ips_ioctl_callback, command, 0);
88 static int ips_ioctl_cmd(ips_softc_t *sc, ips_ioctl_t *ioctl_cmd, ips_user_request *user_request)
90 ips_command_t *command;
93 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag,
96 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
97 /* highaddr */ BUS_SPACE_MAXADDR,
100 /* maxsize */ ioctl_cmd->datasize,
102 /* maxsegsize*/ ioctl_cmd->datasize,
106 &ioctl_cmd->dmatag) != 0) {
109 if(bus_dmamem_alloc(ioctl_cmd->dmatag, &ioctl_cmd->data_buffer,
110 0, &ioctl_cmd->dmamap)){
114 if(copyin(user_request->data_buffer,ioctl_cmd->data_buffer,
115 ioctl_cmd->datasize))
117 ioctl_cmd->status.value = 0xffffffff;
118 mtx_lock(&sc->queue_mtx);
119 if((error = ips_get_free_cmd(sc, &command, 0)) > 0){
121 mtx_unlock(&sc->queue_mtx);
124 command->arg = ioctl_cmd;
125 ips_ioctl_start(command);
126 while( ioctl_cmd->status.value == 0xffffffff)
127 msleep(ioctl_cmd, &sc->queue_mtx, 0, "ips", hz/10);
128 if(COMMAND_ERROR(ioctl_cmd))
132 mtx_unlock(&sc->queue_mtx);
133 if(copyout(ioctl_cmd->data_buffer, user_request->data_buffer,
134 ioctl_cmd->datasize))
136 mtx_lock(&sc->queue_mtx);
137 ips_insert_free_cmd(sc, command);
138 mtx_unlock(&sc->queue_mtx);
140 exit: bus_dmamem_free(ioctl_cmd->dmatag, ioctl_cmd->data_buffer,
142 bus_dma_tag_destroy(ioctl_cmd->dmatag);
147 int ips_ioctl_request(ips_softc_t *sc, u_long ioctl_request, caddr_t addr, int32_t flags){
149 ips_ioctl_t *ioctl_cmd;
150 ips_user_request *user_request;
151 switch(ioctl_request){
153 user_request = (ips_user_request *)addr;
154 ioctl_cmd = malloc(sizeof(ips_ioctl_t), M_IPSBUF, M_WAITOK);
155 ioctl_cmd->command_buffer = malloc(sizeof(ips_generic_cmd),
157 if(copyin(user_request->command_buffer,
158 ioctl_cmd->command_buffer, sizeof(ips_generic_cmd))){
159 free(ioctl_cmd->command_buffer, M_IPSBUF);
160 free(ioctl_cmd, M_IPSBUF);
163 ioctl_cmd->readwrite = IPS_IOCTL_READ | IPS_IOCTL_WRITE;
164 ioctl_cmd->datasize = IPS_IOCTL_BUFFER_SIZE;
165 error = ips_ioctl_cmd(sc, ioctl_cmd, user_request);
166 free(ioctl_cmd->command_buffer, M_IPSBUF);
167 free(ioctl_cmd, M_IPSBUF);