3 * Hidetoshi Shimokawa. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
16 * This product includes software developed by Hidetoshi Shimokawa.
18 * 4. Neither the name of the author nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $Id: dcons_crom.c,v 1.8 2003/10/23 15:47:21 simokawa Exp $
35 * $FreeBSD: src/sys/dev/dcons/dcons_crom.c,v 1.5 2004/10/13 05:38:42 simokawa Exp $
36 * $DragonFly: src/sys/dev/misc/dcons/dcons_crom.c,v 1.5 2006/12/23 00:26:17 swildner Exp $
39 #include <sys/param.h>
40 #include <sys/kernel.h>
41 #include <sys/module.h>
42 #include <sys/systm.h>
43 #include <sys/types.h>
45 #include <sys/malloc.h>
49 #include <bus/firewire/firewire.h>
50 #include <bus/firewire/firewirereg.h>
51 #include <bus/firewire/iec13213.h>
55 #include <dev/firewire/firewire.h>
56 #include <dev/firewire/firewirereg.h>
57 #include <dev/firewire/iec13213.h>
58 #include <dev/dcons/dcons.h>
59 #include <dev/dcons/dcons_os.h>
64 static bus_addr_t dcons_paddr
;
66 #if __FreeBSD_version >= 500000
67 static int force_console
= 1;
68 TUNABLE_INT("hw.firewire.dcons_crom.force_console", &force_console
);
71 #ifndef CSRVAL_VENDOR_PRIVATE
72 #define NEED_NEW_DRIVER
75 #define ADDR_HI(x) (((x) >> 24) & 0xffffff)
76 #define ADDR_LO(x) ((x) & 0xffffff)
78 struct dcons_crom_softc
{
79 struct firewire_dev_comm fd
;
80 struct crom_chunk unit
;
81 struct crom_chunk spec
;
82 struct crom_chunk ver
;
83 bus_dma_tag_t dma_tag
;
89 dcons_crom_probe(device_t dev
)
93 pa
= device_get_parent(dev
);
94 if(device_get_unit(dev
) != device_get_unit(pa
)){
98 device_set_desc(dev
, "dcons configuration ROM");
102 #ifndef NEED_NEW_DRIVER
104 dcons_crom_post_busreset(void *arg
)
106 struct dcons_crom_softc
*sc
;
107 struct crom_src
*src
;
108 struct crom_chunk
*root
;
110 sc
= (struct dcons_crom_softc
*) arg
;
111 src
= sc
->fd
.fc
->crom_src
;
112 root
= sc
->fd
.fc
->crom_root
;
114 bzero(&sc
->unit
, sizeof(struct crom_chunk
));
116 crom_add_chunk(src
, root
, &sc
->unit
, CROM_UDIR
);
117 crom_add_entry(&sc
->unit
, CSRKEY_SPEC
, CSRVAL_VENDOR_PRIVATE
);
118 crom_add_simple_text(src
, &sc
->unit
, &sc
->spec
, "FreeBSD");
119 crom_add_entry(&sc
->unit
, CSRKEY_VER
, DCONS_CSR_VAL_VER
);
120 crom_add_simple_text(src
, &sc
->unit
, &sc
->ver
, "dcons");
121 crom_add_entry(&sc
->unit
, DCONS_CSR_KEY_HI
, ADDR_HI(dcons_paddr
));
122 crom_add_entry(&sc
->unit
, DCONS_CSR_KEY_LO
, ADDR_LO(dcons_paddr
));
127 dmamap_cb(void *arg
, bus_dma_segment_t
*segments
, int seg
, int error
)
129 struct dcons_crom_softc
*sc
;
132 kprintf("dcons_dmamap_cb: error=%d\n", error
);
134 sc
= (struct dcons_crom_softc
*)arg
;
135 sc
->bus_addr
= segments
[0].ds_addr
;
137 bus_dmamap_sync(sc
->dma_tag
, sc
->dma_map
, BUS_DMASYNC_PREWRITE
);
138 device_printf(sc
->fd
.dev
,
139 #if __FreeBSD_version < 500000
140 "bus_addr 0x%x\n", sc
->bus_addr
);
142 "bus_addr 0x%jx\n", (uintmax_t)sc
->bus_addr
);
144 if (dcons_paddr
!= 0) {
146 device_printf(sc
->fd
.dev
, "dcons_paddr is already set\n");
149 dcons_conf
->dma_tag
= sc
->dma_tag
;
150 dcons_conf
->dma_map
= sc
->dma_map
;
151 dcons_paddr
= sc
->bus_addr
;
153 #if __FreeBSD_version >= 500000
154 /* Force to be the high-level console */
156 cnselect(dcons_conf
->cdev
);
161 dcons_crom_attach(device_t dev
)
163 #ifdef NEED_NEW_DRIVER
164 kprintf("dcons_crom: you need newer firewire driver\n");
167 struct dcons_crom_softc
*sc
;
169 sc
= (struct dcons_crom_softc
*) device_get_softc(dev
);
170 sc
->fd
.fc
= device_get_ivars(dev
);
172 sc
->fd
.post_explore
= NULL
;
173 sc
->fd
.post_busreset
= (void *) dcons_crom_post_busreset
;
175 /* map dcons buffer */
177 /*parent*/ sc
->fd
.fc
->dmat
,
178 /*alignment*/ sizeof(u_int32_t
),
180 /*lowaddr*/ BUS_SPACE_MAXADDR
,
181 /*highaddr*/ BUS_SPACE_MAXADDR
,
182 /*filter*/NULL
, /*filterarg*/NULL
,
183 /*maxsize*/ dcons_conf
->size
,
185 /*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT
,
186 /*flags*/ BUS_DMA_ALLOCNOW
,
187 #if __FreeBSD_version >= 501102
188 /*lockfunc*/busdma_lock_mutex
,
192 bus_dmamap_create(sc
->dma_tag
, 0, &sc
->dma_map
);
193 bus_dmamap_load(sc
->dma_tag
, sc
->dma_map
,
194 (void *)dcons_conf
->buf
, dcons_conf
->size
,
201 dcons_crom_detach(device_t dev
)
203 struct dcons_crom_softc
*sc
;
205 sc
= (struct dcons_crom_softc
*) device_get_softc(dev
);
206 sc
->fd
.post_busreset
= NULL
;
209 if (dcons_conf
->dma_tag
== sc
->dma_tag
)
210 dcons_conf
->dma_tag
= NULL
;
212 bus_dmamap_unload(sc
->dma_tag
, sc
->dma_map
);
213 bus_dmamap_destroy(sc
->dma_tag
, sc
->dma_map
);
214 bus_dma_tag_destroy(sc
->dma_tag
);
220 * Because dcons_crom is a static device that always exists under any attached
221 * firewire device, and not scanned by the firewire device, we need an
222 * identify function to install the device. For our sanity we want
223 * the sbp device to have the same unit number as the fireweire device.
225 static devclass_t dcons_crom_devclass
;
227 static device_method_t dcons_crom_methods
[] = {
228 /* device interface */
229 DEVMETHOD(device_identify
, bus_generic_identify_sameunit
),
230 DEVMETHOD(device_probe
, dcons_crom_probe
),
231 DEVMETHOD(device_attach
, dcons_crom_attach
),
232 DEVMETHOD(device_detach
, dcons_crom_detach
),
236 static driver_t dcons_crom_driver
= {
239 sizeof(struct dcons_crom_softc
),
242 DRIVER_MODULE(dcons_crom
, firewire
, dcons_crom_driver
,
243 dcons_crom_devclass
, 0, 0);
244 MODULE_VERSION(dcons_crom
, 1);
245 MODULE_DEPEND(dcons_crom
, dcons
,
246 DCONS_VERSION
, DCONS_VERSION
, DCONS_VERSION
);
247 MODULE_DEPEND(dcons_crom
, firewire
, 1, 1, 1);