2 * Written by: David Jeffery
3 * Copyright (c) 2002 Adaptec Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/ips/ips_ioctl.c,v 1.5 2004/05/30 04:01:29 scottl Exp $
28 * $DragonFly: src/sys/dev/raid/ips/ips_ioctl.c,v 1.4 2004/09/06 16:39:47 joerg Exp $
31 #include <dev/raid/ips/ips.h>
32 #include <dev/raid/ips/ips_ioctl.h>
35 ips_ioctl_finish(ips_command_t *command)
37 ips_ioctl_t *ioctl_cmd = command->arg;
39 if (ioctl_cmd->readwrite & IPS_IOCTL_READ) {
40 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
41 BUS_DMASYNC_POSTREAD);
42 } else if (ioctl_cmd->readwrite & IPS_IOCTL_WRITE) {
43 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
44 BUS_DMASYNC_POSTWRITE);
46 bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap,
47 BUS_DMASYNC_POSTWRITE);
48 bus_dmamap_unload(ioctl_cmd->dmatag, ioctl_cmd->dmamap);
49 ioctl_cmd->status.value = command->status.value;
50 ips_insert_free_cmd(command->sc, command);
54 ips_ioctl_callback(void *cmdptr, bus_dma_segment_t *segments,
55 int segnum, int error)
57 ips_command_t *command;
58 ips_ioctl_t *ioctl_cmd;
59 ips_generic_cmd *command_buffer;
62 ioctl_cmd = command->arg;
63 command_buffer = command->command_buffer;
65 ioctl_cmd->status.value = IPS_ERROR_STATUS;
66 ips_insert_free_cmd(command->sc, command);
69 command_buffer->id = command->id;
70 command_buffer->buffaddr = segments[0].ds_addr;
71 if (ioctl_cmd->readwrite & IPS_IOCTL_WRITE) {
72 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
73 BUS_DMASYNC_PREWRITE);
74 } else if (ioctl_cmd->readwrite & IPS_IOCTL_READ) {
75 bus_dmamap_sync(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
78 bus_dmamap_sync(command->sc->command_dmatag, command->command_dmamap,
79 BUS_DMASYNC_PREWRITE);
80 command->sc->ips_issue_cmd(command);
84 ips_ioctl_start(ips_command_t *command)
86 ips_ioctl_t *ioctl_cmd = command->arg;
88 memcpy(command->command_buffer, ioctl_cmd->command_buffer,
89 sizeof(ips_generic_cmd));
90 command->callback = ips_ioctl_finish;
91 bus_dmamap_load(ioctl_cmd->dmatag, ioctl_cmd->dmamap,
92 ioctl_cmd->data_buffer, ioctl_cmd->datasize, ips_ioctl_callback,
98 ips_ioctl_cmd(ips_softc_t *sc, ips_ioctl_t *ioctl_cmd,
99 ips_user_request *user_request)
103 if (bus_dma_tag_create(
104 /* parent */ sc->adapter_dmatag,
107 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
108 /* highaddr */ BUS_SPACE_MAXADDR,
110 /* filterarg */ NULL,
111 /* maxsize */ ioctl_cmd->datasize,
113 /* maxsegsize*/ ioctl_cmd->datasize,
115 &ioctl_cmd->dmatag) != 0) {
118 if (bus_dmamem_alloc(ioctl_cmd->dmatag, &ioctl_cmd->data_buffer,
119 0, &ioctl_cmd->dmamap)) {
123 if (copyin(user_request->data_buffer, ioctl_cmd->data_buffer,
124 ioctl_cmd->datasize))
126 ioctl_cmd->status.value = 0xffffffff;
127 if ((error = ips_get_free_cmd(sc, ips_ioctl_start, ioctl_cmd, 0)) > 0) {
131 while (ioctl_cmd->status.value == 0xffffffff)
132 tsleep(ioctl_cmd, 0, "ips", hz / 10);
133 if (COMMAND_ERROR(&ioctl_cmd->status))
137 if (copyout(ioctl_cmd->data_buffer, user_request->data_buffer,
138 ioctl_cmd->datasize))
141 bus_dmamem_free(ioctl_cmd->dmatag, ioctl_cmd->data_buffer,
143 bus_dma_tag_destroy(ioctl_cmd->dmatag);
148 ips_ioctl_request(ips_softc_t *sc, u_long ioctl_request, caddr_t addr,
151 ips_ioctl_t *ioctl_cmd;
152 ips_user_request *user_request;
155 switch (ioctl_request) {
157 user_request = (ips_user_request *)addr;
158 ioctl_cmd = malloc(sizeof(ips_ioctl_t), M_IPSBUF, M_WAITOK);
159 ioctl_cmd->command_buffer = malloc(sizeof(ips_generic_cmd),
161 if (copyin(user_request->command_buffer,
162 ioctl_cmd->command_buffer, sizeof(ips_generic_cmd))) {
163 free(ioctl_cmd->command_buffer, M_IPSBUF);
164 free(ioctl_cmd, M_IPSBUF);
167 ioctl_cmd->readwrite = IPS_IOCTL_READ | IPS_IOCTL_WRITE;
168 ioctl_cmd->datasize = IPS_IOCTL_BUFFER_SIZE;
169 error = ips_ioctl_cmd(sc, ioctl_cmd, user_request);
170 free(ioctl_cmd->command_buffer, M_IPSBUF);
171 free(ioctl_cmd, M_IPSBUF);