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 1.5 2004/10/13 05:38:42 simokawa Exp $ 36 * $DragonFly: src/sys/dev/misc/dcons/dcons_crom.c,v 1.2 2004/10/25 13:53:26 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 #include "dcons_os.h" 56 #else 57 #include <dev/firewire/firewire.h> 58 #include <dev/firewire/firewirereg.h> 59 #include <dev/firewire/iec13213.h> 60 #include <dev/dcons/dcons.h> 61 #include <dev/dcons/dcons_os.h> 62 #endif 63 64 #include <sys/cons.h> 65 66 static bus_addr_t dcons_paddr; 67 68 #if __FreeBSD_version >= 500000 69 static int force_console = 1; 70 TUNABLE_INT("hw.firewire.dcons_crom.force_console", &force_console); 71 #endif 72 73 #ifndef CSRVAL_VENDOR_PRIVATE 74 #define NEED_NEW_DRIVER 75 #endif 76 77 #define ADDR_HI(x) (((x) >> 24) & 0xffffff) 78 #define ADDR_LO(x) ((x) & 0xffffff) 79 80 struct dcons_crom_softc { 81 struct firewire_dev_comm fd; 82 struct crom_chunk unit; 83 struct crom_chunk spec; 84 struct crom_chunk ver; 85 bus_dma_tag_t dma_tag; 86 bus_dmamap_t dma_map; 87 bus_addr_t bus_addr; 88 }; 89 90 static void 91 dcons_crom_identify(driver_t *driver, device_t parent) 92 { 93 BUS_ADD_CHILD(parent, 0, "dcons_crom", device_get_unit(parent)); 94 } 95 96 static int 97 dcons_crom_probe(device_t dev) 98 { 99 device_t pa; 100 101 pa = device_get_parent(dev); 102 if(device_get_unit(dev) != device_get_unit(pa)){ 103 return(ENXIO); 104 } 105 106 device_set_desc(dev, "dcons configuration ROM"); 107 return (0); 108 } 109 110 #ifndef NEED_NEW_DRIVER 111 static void 112 dcons_crom_post_busreset(void *arg) 113 { 114 struct dcons_crom_softc *sc; 115 struct crom_src *src; 116 struct crom_chunk *root; 117 118 sc = (struct dcons_crom_softc *) arg; 119 src = sc->fd.fc->crom_src; 120 root = sc->fd.fc->crom_root; 121 122 bzero(&sc->unit, sizeof(struct crom_chunk)); 123 124 crom_add_chunk(src, root, &sc->unit, CROM_UDIR); 125 crom_add_entry(&sc->unit, CSRKEY_SPEC, CSRVAL_VENDOR_PRIVATE); 126 crom_add_simple_text(src, &sc->unit, &sc->spec, "FreeBSD"); 127 crom_add_entry(&sc->unit, CSRKEY_VER, DCONS_CSR_VAL_VER); 128 crom_add_simple_text(src, &sc->unit, &sc->ver, "dcons"); 129 crom_add_entry(&sc->unit, DCONS_CSR_KEY_HI, ADDR_HI(dcons_paddr)); 130 crom_add_entry(&sc->unit, DCONS_CSR_KEY_LO, ADDR_LO(dcons_paddr)); 131 } 132 #endif 133 134 static void 135 dmamap_cb(void *arg, bus_dma_segment_t *segments, int seg, int error) 136 { 137 struct dcons_crom_softc *sc; 138 139 if (error) 140 printf("dcons_dmamap_cb: error=%d\n", error); 141 142 sc = (struct dcons_crom_softc *)arg; 143 sc->bus_addr = segments[0].ds_addr; 144 145 bus_dmamap_sync(sc->dma_tag, sc->dma_map, BUS_DMASYNC_PREWRITE); 146 device_printf(sc->fd.dev, 147 #if __FreeBSD_version < 500000 148 "bus_addr 0x%x\n", sc->bus_addr); 149 #else 150 "bus_addr 0x%jx\n", (uintmax_t)sc->bus_addr); 151 #endif 152 if (dcons_paddr != 0) { 153 /* XXX */ 154 device_printf(sc->fd.dev, "dcons_paddr is already set\n"); 155 return; 156 } 157 dcons_conf->dma_tag = sc->dma_tag; 158 dcons_conf->dma_map = sc->dma_map; 159 dcons_paddr = sc->bus_addr; 160 161 #if __FreeBSD_version >= 500000 162 /* Force to be the high-level console */ 163 if (force_console) 164 cnselect(dcons_conf->cdev); 165 #endif 166 } 167 168 static int 169 dcons_crom_attach(device_t dev) 170 { 171 #ifdef NEED_NEW_DRIVER 172 printf("dcons_crom: you need newer firewire driver\n"); 173 return (-1); 174 #else 175 struct dcons_crom_softc *sc; 176 177 sc = (struct dcons_crom_softc *) device_get_softc(dev); 178 sc->fd.fc = device_get_ivars(dev); 179 sc->fd.dev = dev; 180 sc->fd.post_explore = NULL; 181 sc->fd.post_busreset = (void *) dcons_crom_post_busreset; 182 183 /* map dcons buffer */ 184 bus_dma_tag_create( 185 /*parent*/ sc->fd.fc->dmat, 186 /*alignment*/ sizeof(u_int32_t), 187 /*boundary*/ 0, 188 /*lowaddr*/ BUS_SPACE_MAXADDR, 189 /*highaddr*/ BUS_SPACE_MAXADDR, 190 /*filter*/NULL, /*filterarg*/NULL, 191 /*maxsize*/ dcons_conf->size, 192 /*nsegments*/ 1, 193 /*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT, 194 /*flags*/ BUS_DMA_ALLOCNOW, 195 #if __FreeBSD_version >= 501102 196 /*lockfunc*/busdma_lock_mutex, 197 /*lockarg*/&Giant, 198 #endif 199 &sc->dma_tag); 200 bus_dmamap_create(sc->dma_tag, 0, &sc->dma_map); 201 bus_dmamap_load(sc->dma_tag, sc->dma_map, 202 (void *)dcons_conf->buf, dcons_conf->size, 203 dmamap_cb, sc, 0); 204 return (0); 205 #endif 206 } 207 208 static int 209 dcons_crom_detach(device_t dev) 210 { 211 struct dcons_crom_softc *sc; 212 213 sc = (struct dcons_crom_softc *) device_get_softc(dev); 214 sc->fd.post_busreset = NULL; 215 216 /* XXX */ 217 if (dcons_conf->dma_tag == sc->dma_tag) 218 dcons_conf->dma_tag = NULL; 219 220 bus_dmamap_unload(sc->dma_tag, sc->dma_map); 221 bus_dmamap_destroy(sc->dma_tag, sc->dma_map); 222 bus_dma_tag_destroy(sc->dma_tag); 223 224 return 0; 225 } 226 227 static devclass_t dcons_crom_devclass; 228 229 static device_method_t dcons_crom_methods[] = { 230 /* device interface */ 231 DEVMETHOD(device_identify, dcons_crom_identify), 232 DEVMETHOD(device_probe, dcons_crom_probe), 233 DEVMETHOD(device_attach, dcons_crom_attach), 234 DEVMETHOD(device_detach, dcons_crom_detach), 235 { 0, 0 } 236 }; 237 238 static driver_t dcons_crom_driver = { 239 "dcons_crom", 240 dcons_crom_methods, 241 sizeof(struct dcons_crom_softc), 242 }; 243 244 DRIVER_MODULE(dcons_crom, firewire, dcons_crom_driver, 245 dcons_crom_devclass, 0, 0); 246 MODULE_VERSION(dcons_crom, 1); 247 MODULE_DEPEND(dcons_crom, dcons, 248 DCONS_VERSION, DCONS_VERSION, DCONS_VERSION); 249 MODULE_DEPEND(dcons_crom, firewire, 1, 1, 1); 250