1139749Simp/*- 2121468Ssimokawa * Copyright (C) 2003 3121468Ssimokawa * Hidetoshi Shimokawa. All rights reserved. 4121468Ssimokawa * 5121468Ssimokawa * Redistribution and use in source and binary forms, with or without 6121468Ssimokawa * modification, are permitted provided that the following conditions 7121468Ssimokawa * are met: 8121468Ssimokawa * 1. Redistributions of source code must retain the above copyright 9121468Ssimokawa * notice, this list of conditions and the following disclaimer. 10121468Ssimokawa * 2. Redistributions in binary form must reproduce the above copyright 11121468Ssimokawa * notice, this list of conditions and the following disclaimer in the 12121468Ssimokawa * documentation and/or other materials provided with the distribution. 13121468Ssimokawa * 3. All advertising materials mentioning features or use of this software 14121468Ssimokawa * must display the following acknowledgement: 15121468Ssimokawa * 16121468Ssimokawa * This product includes software developed by Hidetoshi Shimokawa. 17121468Ssimokawa * 18121468Ssimokawa * 4. Neither the name of the author nor the names of its contributors 19121468Ssimokawa * may be used to endorse or promote products derived from this software 20121468Ssimokawa * without specific prior written permission. 21121468Ssimokawa * 22121468Ssimokawa * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23121468Ssimokawa * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24121468Ssimokawa * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25121468Ssimokawa * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26121468Ssimokawa * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27121468Ssimokawa * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28121468Ssimokawa * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29121468Ssimokawa * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30121468Ssimokawa * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31121468Ssimokawa * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32121468Ssimokawa * SUCH DAMAGE. 33121468Ssimokawa * 34121468Ssimokawa * $Id: dcons_crom.c,v 1.8 2003/10/23 15:47:21 simokawa Exp $ 35121468Ssimokawa * $FreeBSD$ 36121468Ssimokawa */ 37121468Ssimokawa 38121468Ssimokawa#include <sys/param.h> 39121468Ssimokawa#include <sys/kernel.h> 40129879Sphk#include <sys/module.h> 41121468Ssimokawa#include <sys/systm.h> 42121468Ssimokawa#include <sys/types.h> 43121468Ssimokawa#include <sys/conf.h> 44121468Ssimokawa#include <sys/malloc.h> 45121468Ssimokawa 46121468Ssimokawa#include <sys/bus.h> 47121468Ssimokawa#include <machine/bus.h> 48121468Ssimokawa 49136467Ssimokawa#ifdef __DragonFly__ 50136467Ssimokawa#include <bus/firewire/firewire.h> 51136467Ssimokawa#include <bus/firewire/firewirereg.h> 52136467Ssimokawa#include <bus/firewire/iec13213.h> 53136467Ssimokawa#include "dcons.h" 54136467Ssimokawa#include "dcons_os.h" 55136467Ssimokawa#else 56121468Ssimokawa#include <dev/firewire/firewire.h> 57121468Ssimokawa#include <dev/firewire/firewirereg.h> 58121468Ssimokawa#include <dev/firewire/iec13213.h> 59121468Ssimokawa#include <dev/dcons/dcons.h> 60136467Ssimokawa#include <dev/dcons/dcons_os.h> 61136467Ssimokawa#endif 62121468Ssimokawa 63125862Ssimokawa#include <sys/cons.h> 64125862Ssimokawa 65170420Ssimokawa#define EXPOSE_IDT_ADDR 1 66170420Ssimokawa 67170420Ssimokawa#if (defined(__i386__) || defined(__amd64__)) && defined(EXPOSE_IDT_ADDR) 68170420Ssimokawa#include <vm/vm.h> 69170420Ssimokawa#include <vm/vm_param.h> 70170420Ssimokawa#include <vm/pmap.h> 71170420Ssimokawa#include <machine/segments.h> /* for idt */ 72170420Ssimokawa#endif 73121468Ssimokawastatic bus_addr_t dcons_paddr; 74121468Ssimokawa 75125862Ssimokawa#if __FreeBSD_version >= 500000 76170018Ssimokawastatic int force_console = 0; 77125862SsimokawaTUNABLE_INT("hw.firewire.dcons_crom.force_console", &force_console); 78125862Ssimokawa#endif 79125862Ssimokawa 80121468Ssimokawa#ifndef CSRVAL_VENDOR_PRIVATE 81121468Ssimokawa#define NEED_NEW_DRIVER 82121468Ssimokawa#endif 83121468Ssimokawa 84121468Ssimokawa#define ADDR_HI(x) (((x) >> 24) & 0xffffff) 85121468Ssimokawa#define ADDR_LO(x) ((x) & 0xffffff) 86121468Ssimokawa 87121468Ssimokawastruct dcons_crom_softc { 88121468Ssimokawa struct firewire_dev_comm fd; 89121468Ssimokawa struct crom_chunk unit; 90121468Ssimokawa struct crom_chunk spec; 91121468Ssimokawa struct crom_chunk ver; 92121468Ssimokawa bus_dma_tag_t dma_tag; 93121468Ssimokawa bus_dmamap_t dma_map; 94121468Ssimokawa bus_addr_t bus_addr; 95170408Ssimokawa eventhandler_tag ehand; 96121468Ssimokawa}; 97121468Ssimokawa 98121468Ssimokawastatic void 99121468Ssimokawadcons_crom_identify(driver_t *driver, device_t parent) 100121468Ssimokawa{ 101121468Ssimokawa BUS_ADD_CHILD(parent, 0, "dcons_crom", device_get_unit(parent)); 102121468Ssimokawa} 103121468Ssimokawa 104121468Ssimokawastatic int 105121468Ssimokawadcons_crom_probe(device_t dev) 106121468Ssimokawa{ 107121468Ssimokawa device_t pa; 108121468Ssimokawa 109121468Ssimokawa pa = device_get_parent(dev); 110121468Ssimokawa if(device_get_unit(dev) != device_get_unit(pa)){ 111121468Ssimokawa return(ENXIO); 112121468Ssimokawa } 113121468Ssimokawa 114121468Ssimokawa device_set_desc(dev, "dcons configuration ROM"); 115121468Ssimokawa return (0); 116121468Ssimokawa} 117121468Ssimokawa 118121468Ssimokawa#ifndef NEED_NEW_DRIVER 119170420Ssimokawa#if (defined(__i386__) || defined(__amd64__)) && defined(EXPOSE_IDT_ADDR) 120121468Ssimokawastatic void 121170420Ssimokawadcons_crom_expose_idt(struct dcons_crom_softc *sc) 122170420Ssimokawa{ 123170420Ssimokawa static off_t idt_paddr; 124170420Ssimokawa 125170420Ssimokawa /* XXX */ 126170420Ssimokawa idt_paddr = (char *)idt - (char *)KERNBASE; 127170420Ssimokawa 128170420Ssimokawa crom_add_entry(&sc->unit, DCONS_CSR_KEY_RESET_HI, ADDR_HI(idt_paddr)); 129170420Ssimokawa crom_add_entry(&sc->unit, DCONS_CSR_KEY_RESET_LO, ADDR_LO(idt_paddr)); 130170420Ssimokawa} 131170420Ssimokawa#endif 132170420Ssimokawastatic void 133121468Ssimokawadcons_crom_post_busreset(void *arg) 134121468Ssimokawa{ 135121468Ssimokawa struct dcons_crom_softc *sc; 136121468Ssimokawa struct crom_src *src; 137121468Ssimokawa struct crom_chunk *root; 138121468Ssimokawa 139121468Ssimokawa sc = (struct dcons_crom_softc *) arg; 140121468Ssimokawa src = sc->fd.fc->crom_src; 141121468Ssimokawa root = sc->fd.fc->crom_root; 142121468Ssimokawa 143121468Ssimokawa bzero(&sc->unit, sizeof(struct crom_chunk)); 144121468Ssimokawa 145121468Ssimokawa crom_add_chunk(src, root, &sc->unit, CROM_UDIR); 146121468Ssimokawa crom_add_entry(&sc->unit, CSRKEY_SPEC, CSRVAL_VENDOR_PRIVATE); 147121468Ssimokawa crom_add_simple_text(src, &sc->unit, &sc->spec, "FreeBSD"); 148121468Ssimokawa crom_add_entry(&sc->unit, CSRKEY_VER, DCONS_CSR_VAL_VER); 149121468Ssimokawa crom_add_simple_text(src, &sc->unit, &sc->ver, "dcons"); 150121468Ssimokawa crom_add_entry(&sc->unit, DCONS_CSR_KEY_HI, ADDR_HI(dcons_paddr)); 151121468Ssimokawa crom_add_entry(&sc->unit, DCONS_CSR_KEY_LO, ADDR_LO(dcons_paddr)); 152170420Ssimokawa#if (defined(__i386__) || defined(__amd64__)) && defined(EXPOSE_IDT_ADDR) 153170420Ssimokawa dcons_crom_expose_idt(sc); 154170420Ssimokawa#endif 155121468Ssimokawa} 156121468Ssimokawa#endif 157121468Ssimokawa 158121468Ssimokawastatic void 159121468Ssimokawadmamap_cb(void *arg, bus_dma_segment_t *segments, int seg, int error) 160121468Ssimokawa{ 161122310Ssimokawa struct dcons_crom_softc *sc; 162121468Ssimokawa 163121468Ssimokawa if (error) 164121468Ssimokawa printf("dcons_dmamap_cb: error=%d\n", error); 165121468Ssimokawa 166122310Ssimokawa sc = (struct dcons_crom_softc *)arg; 167122310Ssimokawa sc->bus_addr = segments[0].ds_addr; 168122310Ssimokawa 169122310Ssimokawa bus_dmamap_sync(sc->dma_tag, sc->dma_map, BUS_DMASYNC_PREWRITE); 170122310Ssimokawa device_printf(sc->fd.dev, 171122310Ssimokawa#if __FreeBSD_version < 500000 172122310Ssimokawa "bus_addr 0x%x\n", sc->bus_addr); 173122310Ssimokawa#else 174122310Ssimokawa "bus_addr 0x%jx\n", (uintmax_t)sc->bus_addr); 175122310Ssimokawa#endif 176122310Ssimokawa if (dcons_paddr != 0) { 177122310Ssimokawa /* XXX */ 178122310Ssimokawa device_printf(sc->fd.dev, "dcons_paddr is already set\n"); 179122310Ssimokawa return; 180122310Ssimokawa } 181125862Ssimokawa dcons_conf->dma_tag = sc->dma_tag; 182125862Ssimokawa dcons_conf->dma_map = sc->dma_map; 183122310Ssimokawa dcons_paddr = sc->bus_addr; 184125862Ssimokawa 185125862Ssimokawa#if __FreeBSD_version >= 500000 186125862Ssimokawa /* Force to be the high-level console */ 187125862Ssimokawa if (force_console) 188125862Ssimokawa cnselect(dcons_conf->cdev); 189125862Ssimokawa#endif 190121468Ssimokawa} 191121468Ssimokawa 192170408Ssimokawastatic void 193170408Ssimokawadcons_crom_poll(void *p, int arg) 194170408Ssimokawa{ 195170408Ssimokawa struct dcons_crom_softc *sc = (struct dcons_crom_softc *) p; 196170408Ssimokawa 197170408Ssimokawa sc->fd.fc->poll(sc->fd.fc, -1, -1); 198170408Ssimokawa} 199170408Ssimokawa 200121468Ssimokawastatic int 201121468Ssimokawadcons_crom_attach(device_t dev) 202121468Ssimokawa{ 203121468Ssimokawa#ifdef NEED_NEW_DRIVER 204121468Ssimokawa printf("dcons_crom: you need newer firewire driver\n"); 205121468Ssimokawa return (-1); 206121468Ssimokawa#else 207121468Ssimokawa struct dcons_crom_softc *sc; 208186876Smarius int error; 209121468Ssimokawa 210186876Smarius if (dcons_conf->buf == NULL) 211186876Smarius return (ENXIO); 212121468Ssimokawa sc = (struct dcons_crom_softc *) device_get_softc(dev); 213121468Ssimokawa sc->fd.fc = device_get_ivars(dev); 214121468Ssimokawa sc->fd.dev = dev; 215121468Ssimokawa sc->fd.post_explore = NULL; 216121468Ssimokawa sc->fd.post_busreset = (void *) dcons_crom_post_busreset; 217121468Ssimokawa 218121468Ssimokawa /* map dcons buffer */ 219186876Smarius error = bus_dma_tag_create( 220121468Ssimokawa /*parent*/ sc->fd.fc->dmat, 221121468Ssimokawa /*alignment*/ sizeof(u_int32_t), 222121468Ssimokawa /*boundary*/ 0, 223121468Ssimokawa /*lowaddr*/ BUS_SPACE_MAXADDR, 224121468Ssimokawa /*highaddr*/ BUS_SPACE_MAXADDR, 225121468Ssimokawa /*filter*/NULL, /*filterarg*/NULL, 226125862Ssimokawa /*maxsize*/ dcons_conf->size, 227121468Ssimokawa /*nsegments*/ 1, 228121468Ssimokawa /*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT, 229121468Ssimokawa /*flags*/ BUS_DMA_ALLOCNOW, 230121468Ssimokawa#if __FreeBSD_version >= 501102 231121468Ssimokawa /*lockfunc*/busdma_lock_mutex, 232121468Ssimokawa /*lockarg*/&Giant, 233121468Ssimokawa#endif 234121468Ssimokawa &sc->dma_tag); 235186876Smarius if (error != 0) 236186876Smarius return (error); 237186876Smarius error = bus_dmamap_create(sc->dma_tag, BUS_DMA_COHERENT, &sc->dma_map); 238186876Smarius if (error != 0) 239186876Smarius return (error); 240186876Smarius error = bus_dmamap_load(sc->dma_tag, sc->dma_map, 241125862Ssimokawa (void *)dcons_conf->buf, dcons_conf->size, 242122310Ssimokawa dmamap_cb, sc, 0); 243186876Smarius if (error != 0) 244186876Smarius return (error); 245170408Ssimokawa sc->ehand = EVENTHANDLER_REGISTER(dcons_poll, dcons_crom_poll, 246170408Ssimokawa (void *)sc, 0); 247121468Ssimokawa return (0); 248121468Ssimokawa#endif 249121468Ssimokawa} 250121468Ssimokawa 251121468Ssimokawastatic int 252121468Ssimokawadcons_crom_detach(device_t dev) 253121468Ssimokawa{ 254121468Ssimokawa struct dcons_crom_softc *sc; 255121468Ssimokawa 256121468Ssimokawa sc = (struct dcons_crom_softc *) device_get_softc(dev); 257121468Ssimokawa sc->fd.post_busreset = NULL; 258121468Ssimokawa 259170408Ssimokawa if (sc->ehand) 260170408Ssimokawa EVENTHANDLER_DEREGISTER(dcons_poll, sc->ehand); 261170408Ssimokawa 262121468Ssimokawa /* XXX */ 263125862Ssimokawa if (dcons_conf->dma_tag == sc->dma_tag) 264125862Ssimokawa dcons_conf->dma_tag = NULL; 265121468Ssimokawa 266121468Ssimokawa bus_dmamap_unload(sc->dma_tag, sc->dma_map); 267121468Ssimokawa bus_dmamap_destroy(sc->dma_tag, sc->dma_map); 268121468Ssimokawa bus_dma_tag_destroy(sc->dma_tag); 269121468Ssimokawa 270121468Ssimokawa return 0; 271121468Ssimokawa} 272121468Ssimokawa 273121468Ssimokawastatic devclass_t dcons_crom_devclass; 274121468Ssimokawa 275121468Ssimokawastatic device_method_t dcons_crom_methods[] = { 276121468Ssimokawa /* device interface */ 277121468Ssimokawa DEVMETHOD(device_identify, dcons_crom_identify), 278121468Ssimokawa DEVMETHOD(device_probe, dcons_crom_probe), 279121468Ssimokawa DEVMETHOD(device_attach, dcons_crom_attach), 280121468Ssimokawa DEVMETHOD(device_detach, dcons_crom_detach), 281121468Ssimokawa { 0, 0 } 282121468Ssimokawa}; 283121468Ssimokawa 284121468Ssimokawastatic driver_t dcons_crom_driver = { 285121468Ssimokawa "dcons_crom", 286121468Ssimokawa dcons_crom_methods, 287121468Ssimokawa sizeof(struct dcons_crom_softc), 288121468Ssimokawa}; 289121468Ssimokawa 290121468SsimokawaDRIVER_MODULE(dcons_crom, firewire, dcons_crom_driver, 291121468Ssimokawa dcons_crom_devclass, 0, 0); 292121468SsimokawaMODULE_VERSION(dcons_crom, 1); 293121468SsimokawaMODULE_DEPEND(dcons_crom, dcons, 294121468Ssimokawa DCONS_VERSION, DCONS_VERSION, DCONS_VERSION); 295121468SsimokawaMODULE_DEPEND(dcons_crom, firewire, 1, 1, 1); 296