1 /* 2 * Copyright (C) 2003 3 * Hidetoshi Shimokawa. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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: 15 * 16 * This product includes software developed by Hidetoshi Shimokawa. 17 * 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. 21 * 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 32 * SUCH DAMAGE. 33 * 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 1.4 2004/05/30 20:08:30 phk Exp $ 36 * $DragonFly: src/sys/dev/misc/dcons/dcons_crom.c,v 1.1 2004/09/23 05:09:49 simokawa Exp $ 37 */ 38 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> 44 #include <sys/conf.h> 45 #include <sys/malloc.h> 46 47 #include <sys/bus.h> 48 #include <machine/bus.h> 49 50 #ifdef __DragonFly__ 51 #include <bus/firewire/firewire.h> 52 #include <bus/firewire/firewirereg.h> 53 #include <bus/firewire/iec13213.h> 54 #include "dcons.h" 55 #else 56 #include <dev/firewire/firewire.h> 57 #include <dev/firewire/firewirereg.h> 58 #include <dev/firewire/iec13213.h> 59 #include <dev/dcons/dcons.h> 60 #endif 61 62 #include <sys/cons.h> 63 64 static bus_addr_t dcons_paddr; 65 66 #if __FreeBSD_version >= 500000 67 static int force_console = 1; 68 TUNABLE_INT("hw.firewire.dcons_crom.force_console", &force_console); 69 #endif 70 71 #ifndef CSRVAL_VENDOR_PRIVATE 72 #define NEED_NEW_DRIVER 73 #endif 74 75 #define ADDR_HI(x) (((x) >> 24) & 0xffffff) 76 #define ADDR_LO(x) ((x) & 0xffffff) 77 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; 84 bus_dmamap_t dma_map; 85 bus_addr_t bus_addr; 86 }; 87 88 static void 89 dcons_crom_identify(driver_t *driver, device_t parent) 90 { 91 BUS_ADD_CHILD(parent, 0, "dcons_crom", device_get_unit(parent)); 92 } 93 94 static int 95 dcons_crom_probe(device_t dev) 96 { 97 device_t pa; 98 99 pa = device_get_parent(dev); 100 if(device_get_unit(dev) != device_get_unit(pa)){ 101 return(ENXIO); 102 } 103 104 device_set_desc(dev, "dcons configuration ROM"); 105 return (0); 106 } 107 108 #ifndef NEED_NEW_DRIVER 109 static void 110 dcons_crom_post_busreset(void *arg) 111 { 112 struct dcons_crom_softc *sc; 113 struct crom_src *src; 114 struct crom_chunk *root; 115 116 sc = (struct dcons_crom_softc *) arg; 117 src = sc->fd.fc->crom_src; 118 root = sc->fd.fc->crom_root; 119 120 bzero(&sc->unit, sizeof(struct crom_chunk)); 121 122 crom_add_chunk(src, root, &sc->unit, CROM_UDIR); 123 crom_add_entry(&sc->unit, CSRKEY_SPEC, CSRVAL_VENDOR_PRIVATE); 124 crom_add_simple_text(src, &sc->unit, &sc->spec, "FreeBSD"); 125 crom_add_entry(&sc->unit, CSRKEY_VER, DCONS_CSR_VAL_VER); 126 crom_add_simple_text(src, &sc->unit, &sc->ver, "dcons"); 127 crom_add_entry(&sc->unit, DCONS_CSR_KEY_HI, ADDR_HI(dcons_paddr)); 128 crom_add_entry(&sc->unit, DCONS_CSR_KEY_LO, ADDR_LO(dcons_paddr)); 129 } 130 #endif 131 132 static void 133 dmamap_cb(void *arg, bus_dma_segment_t *segments, int seg, int error) 134 { 135 struct dcons_crom_softc *sc; 136 137 if (error) 138 printf("dcons_dmamap_cb: error=%d\n", error); 139 140 sc = (struct dcons_crom_softc *)arg; 141 sc->bus_addr = segments[0].ds_addr; 142 143 bus_dmamap_sync(sc->dma_tag, sc->dma_map, BUS_DMASYNC_PREWRITE); 144 device_printf(sc->fd.dev, 145 #if __FreeBSD_version < 500000 146 "bus_addr 0x%x\n", sc->bus_addr); 147 #else 148 "bus_addr 0x%jx\n", (uintmax_t)sc->bus_addr); 149 #endif 150 if (dcons_paddr != 0) { 151 /* XXX */ 152 device_printf(sc->fd.dev, "dcons_paddr is already set\n"); 153 return; 154 } 155 dcons_conf->dma_tag = sc->dma_tag; 156 dcons_conf->dma_map = sc->dma_map; 157 dcons_paddr = sc->bus_addr; 158 159 #if __FreeBSD_version >= 500000 160 /* Force to be the high-level console */ 161 if (force_console) 162 cnselect(dcons_conf->cdev); 163 #endif 164 } 165 166 static int 167 dcons_crom_attach(device_t dev) 168 { 169 #ifdef NEED_NEW_DRIVER 170 printf("dcons_crom: you need newer firewire driver\n"); 171 return (-1); 172 #else 173 struct dcons_crom_softc *sc; 174 175 sc = (struct dcons_crom_softc *) device_get_softc(dev); 176 sc->fd.fc = device_get_ivars(dev); 177 sc->fd.dev = dev; 178 sc->fd.post_explore = NULL; 179 sc->fd.post_busreset = (void *) dcons_crom_post_busreset; 180 181 /* map dcons buffer */ 182 bus_dma_tag_create( 183 /*parent*/ sc->fd.fc->dmat, 184 /*alignment*/ sizeof(u_int32_t), 185 /*boundary*/ 0, 186 /*lowaddr*/ BUS_SPACE_MAXADDR, 187 /*highaddr*/ BUS_SPACE_MAXADDR, 188 /*filter*/NULL, /*filterarg*/NULL, 189 /*maxsize*/ dcons_conf->size, 190 /*nsegments*/ 1, 191 /*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT, 192 /*flags*/ BUS_DMA_ALLOCNOW, 193 #if __FreeBSD_version >= 501102 194 /*lockfunc*/busdma_lock_mutex, 195 /*lockarg*/&Giant, 196 #endif 197 &sc->dma_tag); 198 bus_dmamap_create(sc->dma_tag, 0, &sc->dma_map); 199 bus_dmamap_load(sc->dma_tag, sc->dma_map, 200 (void *)dcons_conf->buf, dcons_conf->size, 201 dmamap_cb, sc, 0); 202 return (0); 203 #endif 204 } 205 206 static int 207 dcons_crom_detach(device_t dev) 208 { 209 struct dcons_crom_softc *sc; 210 211 sc = (struct dcons_crom_softc *) device_get_softc(dev); 212 sc->fd.post_busreset = NULL; 213 214 /* XXX */ 215 if (dcons_conf->dma_tag == sc->dma_tag) 216 dcons_conf->dma_tag = NULL; 217 218 bus_dmamap_unload(sc->dma_tag, sc->dma_map); 219 bus_dmamap_destroy(sc->dma_tag, sc->dma_map); 220 bus_dma_tag_destroy(sc->dma_tag); 221 222 return 0; 223 } 224 225 static devclass_t dcons_crom_devclass; 226 227 static device_method_t dcons_crom_methods[] = { 228 /* device interface */ 229 DEVMETHOD(device_identify, dcons_crom_identify), 230 DEVMETHOD(device_probe, dcons_crom_probe), 231 DEVMETHOD(device_attach, dcons_crom_attach), 232 DEVMETHOD(device_detach, dcons_crom_detach), 233 { 0, 0 } 234 }; 235 236 static driver_t dcons_crom_driver = { 237 "dcons_crom", 238 dcons_crom_methods, 239 sizeof(struct dcons_crom_softc), 240 }; 241 242 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); 248