fb.c revision 111815
142421Syokota/*- 242421Syokota * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 342421Syokota * All rights reserved. 442421Syokota * 542421Syokota * Redistribution and use in source and binary forms, with or without 642421Syokota * modification, are permitted provided that the following conditions 742421Syokota * are met: 842421Syokota * 1. Redistributions of source code must retain the above copyright 942421Syokota * notice, this list of conditions and the following disclaimer as 1042421Syokota * the first lines of this file unmodified. 1142421Syokota * 2. Redistributions in binary form must reproduce the above copyright 1242421Syokota * notice, this list of conditions and the following disclaimer in the 1342421Syokota * documentation and/or other materials provided with the distribution. 1442421Syokota * 3. The name of the author may not be used to endorse or promote products 1542421Syokota * derived from this software without specific prior written permission. 1642421Syokota * 1742421Syokota * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 1842421Syokota * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1942421Syokota * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2042421Syokota * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 2142421Syokota * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2242421Syokota * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2342421Syokota * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2442421Syokota * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2542421Syokota * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2642421Syokota * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2742421Syokota * 2850477Speter * $FreeBSD: head/sys/dev/fb/fb.c 111815 2003-03-03 12:15:54Z phk $ 2942421Syokota */ 3042421Syokota 3142421Syokota#include "opt_fb.h" 3242421Syokota 3342421Syokota#include <sys/param.h> 3442421Syokota#include <sys/systm.h> 3542421Syokota#include <sys/conf.h> 3648104Syokota#include <sys/bus.h> 3742421Syokota#include <sys/kernel.h> 3842421Syokota#include <sys/malloc.h> 3971862Speter#include <sys/module.h> 4048104Syokota#include <sys/uio.h> 4148104Syokota#include <sys/fbio.h> 4278161Speter#include <sys/linker_set.h> 4342421Syokota 4448104Syokota#include <vm/vm.h> 4548104Syokota#include <vm/pmap.h> 4642421Syokota 4742421Syokota#include <dev/fb/fbreg.h> 4842421Syokota 4978161SpeterSET_DECLARE(videodriver_set, const video_driver_t); 5078161Speter 5142421Syokota/* local arrays */ 5242421Syokota 5342421Syokota/* 5442421Syokota * We need at least one entry each in order to initialize a video card 5542421Syokota * for the kernel console. The arrays will be increased dynamically 5642421Syokota * when necessary. 5742421Syokota */ 5842564Syokota 5948104Syokotastatic int vid_malloc; 6042564Syokotastatic int adapters = 1; 6142421Syokotastatic video_adapter_t *adp_ini; 6242564Syokotastatic video_adapter_t **adapter = &adp_ini; 6342421Syokotastatic video_switch_t *vidsw_ini; 6442421Syokota video_switch_t **vidsw = &vidsw_ini; 6542421Syokota 6642564Syokota#ifdef FB_INSTALL_CDEV 6748104Syokotastatic struct cdevsw *vidcdevsw_ini; 6848104Syokotastatic struct cdevsw **vidcdevsw = &vidcdevsw_ini; 6948104Syokota#endif 7042564Syokota 7142421Syokota#define ARRAY_DELTA 4 7242421Syokota 7348104Syokotastatic int 7442421Syokotavid_realloc_array(void) 7542421Syokota{ 7642421Syokota video_adapter_t **new_adp; 7742421Syokota video_switch_t **new_vidsw; 7848104Syokota#ifdef FB_INSTALL_CDEV 7942421Syokota struct cdevsw **new_cdevsw; 8048104Syokota#endif 8142421Syokota int newsize; 8242421Syokota int s; 8342421Syokota 8448104Syokota if (!vid_malloc) 8548104Syokota return ENOMEM; 8648104Syokota 8742421Syokota s = spltty(); 8842421Syokota newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 89111119Simp new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK | M_ZERO); 9069781Sdwmalone new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, 91111119Simp M_WAITOK | M_ZERO); 9248104Syokota#ifdef FB_INSTALL_CDEV 9369781Sdwmalone new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, 94111119Simp M_WAITOK | M_ZERO); 9548104Syokota#endif 9642421Syokota bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 9742421Syokota bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 9848104Syokota#ifdef FB_INSTALL_CDEV 9942421Syokota bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 10048104Syokota#endif 10142421Syokota if (adapters > 1) { 10242421Syokota free(adapter, M_DEVBUF); 10342421Syokota free(vidsw, M_DEVBUF); 10448104Syokota#ifdef FB_INSTALL_CDEV 10542421Syokota free(vidcdevsw, M_DEVBUF); 10648104Syokota#endif 10742421Syokota } 10842421Syokota adapter = new_adp; 10942421Syokota vidsw = new_vidsw; 11048104Syokota#ifdef FB_INSTALL_CDEV 11142421Syokota vidcdevsw = new_cdevsw; 11248104Syokota#endif 11342421Syokota adapters = newsize; 11442421Syokota splx(s); 11542421Syokota 11642421Syokota if (bootverbose) 11742421Syokota printf("fb: new array size %d\n", adapters); 11848104Syokota 11948104Syokota return 0; 12042421Syokota} 12142421Syokota 12248104Syokotastatic void 12348104Syokotavid_malloc_init(void *arg) 12448104Syokota{ 12548104Syokota vid_malloc = TRUE; 12648104Syokota} 12742564Syokota 12848104SyokotaSYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); 12948104Syokota 13042421Syokota/* 13142421Syokota * Low-level frame buffer driver functions 13242421Syokota * frame buffer subdrivers, such as the VGA driver, call these functions 13342421Syokota * to initialize the video_adapter structure and register it to the virtual 13442421Syokota * frame buffer driver `fb'. 13542421Syokota */ 13642421Syokota 13742421Syokota/* initialize the video_adapter_t structure */ 13842421Syokotavoid 13942421Syokotavid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 14042421Syokota{ 14142421Syokota adp->va_flags = 0; 14242421Syokota adp->va_name = name; 14342421Syokota adp->va_type = type; 14442421Syokota adp->va_unit = unit; 14542421Syokota} 14642421Syokota 14742421Syokota/* Register a video adapter */ 14842421Syokotaint 14942421Syokotavid_register(video_adapter_t *adp) 15042421Syokota{ 15148104Syokota const video_driver_t **list; 15248104Syokota const video_driver_t *p; 15342421Syokota int index; 15442421Syokota 15542421Syokota for (index = 0; index < adapters; ++index) { 15642421Syokota if (adapter[index] == NULL) 15742421Syokota break; 15842421Syokota } 15948104Syokota if (index >= adapters) { 16048104Syokota if (vid_realloc_array()) 16148104Syokota return -1; 16248104Syokota } 16342421Syokota 16442421Syokota adp->va_index = index; 16542421Syokota adp->va_token = NULL; 16678161Speter SET_FOREACH(list, videodriver_set) { 16778161Speter p = *list; 16842421Syokota if (strcmp(p->name, adp->va_name) == 0) { 16942421Syokota adapter[index] = adp; 17042421Syokota vidsw[index] = p->vidsw; 17142421Syokota return index; 17242421Syokota } 17342421Syokota } 17442421Syokota 17542421Syokota return -1; 17642421Syokota} 17742421Syokota 17842421Syokotaint 17942421Syokotavid_unregister(video_adapter_t *adp) 18042421Syokota{ 18142421Syokota if ((adp->va_index < 0) || (adp->va_index >= adapters)) 18242421Syokota return ENOENT; 18342421Syokota if (adapter[adp->va_index] != adp) 18442421Syokota return ENOENT; 18542421Syokota 18642421Syokota adapter[adp->va_index] = NULL; 18742421Syokota vidsw[adp->va_index] = NULL; 18842421Syokota return 0; 18942421Syokota} 19042421Syokota 19142421Syokota/* Get video I/O function table */ 19242421Syokotavideo_switch_t 19342421Syokota*vid_get_switch(char *name) 19442421Syokota{ 19548104Syokota const video_driver_t **list; 19648104Syokota const video_driver_t *p; 19742421Syokota 19878161Speter SET_FOREACH(list, videodriver_set) { 19978161Speter p = *list; 20042421Syokota if (strcmp(p->name, name) == 0) 20142421Syokota return p->vidsw; 20242421Syokota } 20342421Syokota 20442421Syokota return NULL; 20542421Syokota} 20642421Syokota 20742421Syokota/* 20842421Syokota * Video card client functions 20942421Syokota * Video card clients, such as the console driver `syscons' and the frame 21042421Syokota * buffer cdev driver, use these functions to claim and release a card for 21142421Syokota * exclusive use. 21242421Syokota */ 21342421Syokota 21442421Syokota/* find the video card specified by a driver name and a unit number */ 21542421Syokotaint 21642421Syokotavid_find_adapter(char *driver, int unit) 21742421Syokota{ 21842421Syokota int i; 21942421Syokota 22042421Syokota for (i = 0; i < adapters; ++i) { 22142421Syokota if (adapter[i] == NULL) 22242421Syokota continue; 22342421Syokota if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 22442421Syokota continue; 22542421Syokota if ((unit != -1) && (adapter[i]->va_unit != unit)) 22642421Syokota continue; 22742421Syokota return i; 22842421Syokota } 22942421Syokota return -1; 23042421Syokota} 23142421Syokota 23242421Syokota/* allocate a video card */ 23342421Syokotaint 23442421Syokotavid_allocate(char *driver, int unit, void *id) 23542421Syokota{ 23642421Syokota int index; 23742421Syokota int s; 23842421Syokota 23942421Syokota s = spltty(); 24042421Syokota index = vid_find_adapter(driver, unit); 24142421Syokota if (index >= 0) { 24242421Syokota if (adapter[index]->va_token) { 24342421Syokota splx(s); 24442421Syokota return -1; 24542421Syokota } 24642421Syokota adapter[index]->va_token = id; 24742421Syokota } 24842421Syokota splx(s); 24942421Syokota return index; 25042421Syokota} 25142421Syokota 25242421Syokotaint 25342421Syokotavid_release(video_adapter_t *adp, void *id) 25442421Syokota{ 25542421Syokota int error; 25642421Syokota int s; 25742421Syokota 25842421Syokota s = spltty(); 25942421Syokota if (adp->va_token == NULL) { 26042421Syokota error = EINVAL; 26142421Syokota } else if (adp->va_token != id) { 26242421Syokota error = EPERM; 26342421Syokota } else { 26442421Syokota adp->va_token = NULL; 26542421Syokota error = 0; 26642421Syokota } 26742421Syokota splx(s); 26842421Syokota return error; 26942421Syokota} 27042421Syokota 27142421Syokota/* Get a video adapter structure */ 27242421Syokotavideo_adapter_t 27342421Syokota*vid_get_adapter(int index) 27442421Syokota{ 27542421Syokota if ((index < 0) || (index >= adapters)) 27642421Syokota return NULL; 27742421Syokota return adapter[index]; 27842421Syokota} 27942421Syokota 28042421Syokota/* Configure drivers: this is a backdoor for the console driver XXX */ 28142421Syokotaint 28242421Syokotavid_configure(int flags) 28342421Syokota{ 28448104Syokota const video_driver_t **list; 28548104Syokota const video_driver_t *p; 28642421Syokota 28778161Speter SET_FOREACH(list, videodriver_set) { 28878161Speter p = *list; 28942421Syokota if (p->configure != NULL) 29042421Syokota (*p->configure)(flags); 29142421Syokota } 29242421Syokota 29342421Syokota return 0; 29442421Syokota} 29542421Syokota 29642421Syokota/* 29742421Syokota * Virtual frame buffer cdev driver functions 29842421Syokota * The virtual frame buffer driver dispatches driver functions to 29942421Syokota * appropriate subdrivers. 30042421Syokota */ 30142421Syokota 30248104Syokota#define FB_DRIVER_NAME "fb" 30342421Syokota 30442421Syokota#ifdef FB_INSTALL_CDEV 30542421Syokota 30648104Syokota#if experimental 30748104Syokota 30848104Syokotastatic devclass_t fb_devclass; 30948104Syokota 31048104Syokotastatic int fbprobe(device_t dev); 31148104Syokotastatic int fbattach(device_t dev); 31248104Syokota 31348104Syokotastatic device_method_t fb_methods[] = { 31448104Syokota DEVMETHOD(device_probe, fbprobe), 31548104Syokota DEVMETHOD(device_attach, fbattach), 31648104Syokota 31748104Syokota DEVMETHOD(bus_print_child, bus_generic_print_child), 31848104Syokota { 0, 0 } 31948104Syokota}; 32048104Syokota 32148104Syokotastatic driver_t fb_driver = { 32248104Syokota FB_DRIVER_NAME, 32348104Syokota fb_methods, 32448104Syokota 0, 32548104Syokota}; 32648104Syokota 32748104Syokotastatic int 32848104Syokotafbprobe(device_t dev) 32948104Syokota{ 33048104Syokota int unit; 33148104Syokota 33248104Syokota unit = device_get_unit(dev); 33348104Syokota if (unit >= adapters) 33448104Syokota return ENXIO; 33548104Syokota if (adapter[unit] == NULL) 33648104Syokota return ENXIO; 33748104Syokota 33848104Syokota device_set_desc(dev, "generic frame buffer"); 33948104Syokota return 0; 34048104Syokota} 34148104Syokota 34248104Syokotastatic int 34348104Syokotafbattach(device_t dev) 34448104Syokota{ 34548104Syokota printf("fbattach: about to attach children\n"); 34648104Syokota bus_generic_attach(dev); 34748104Syokota return 0; 34848104Syokota} 34948104Syokota 35048104Syokota#endif /* experimental */ 35148104Syokota 35242421Syokota#define FB_UNIT(dev) minor(dev) 35342421Syokota#define FB_MKMINOR(unit) (u) 35442421Syokota 355111576Sphk#if experimental 35642421Syokotastatic d_open_t fbopen; 35742421Syokotastatic d_close_t fbclose; 35848104Syokotastatic d_read_t fbread; 35948104Syokotastatic d_write_t fbwrite; 36042421Syokotastatic d_ioctl_t fbioctl; 36142421Syokotastatic d_mmap_t fbmmap; 36242421Syokota 36348104Syokota#define CDEV_MAJOR 123 /* XXX */ 36442421Syokota 36542421Syokotastatic struct cdevsw fb_cdevsw = { 366111815Sphk .d_open = fbopen, 367111815Sphk .d_close = fbclose, 368111815Sphk .d_read = fbread, 369111815Sphk .d_write = fbwrite, 370111815Sphk .d_ioctl = fbioctl, 371111815Sphk .d_mmap = fbmmap, 372111815Sphk .d_name = FB_DRIVER_NAME, 373111815Sphk .d_maj = CDEV_MAJOR, 37442421Syokota}; 375111576Sphk#endif 37642421Syokota 37742421Syokota 37871862Speterstatic int 37971862Speterfb_modevent(module_t mod, int type, void *data) 38071862Speter{ 38171862Speter 38271862Speter switch (type) { 38371862Speter case MOD_LOAD: 38471862Speter break; 38571862Speter case MOD_UNLOAD: 38671862Speter printf("fb module unload - not possible for this module type\n"); 38771862Speter return EINVAL; 38871862Speter } 38971862Speter return 0; 39071862Speter} 39142421Syokota 39271862Speterstatic moduledata_t fb_mod = { 39371862Speter "fb", 39471862Speter fb_modevent, 39571862Speter NULL 39671862Speter}; 39742421Syokota 39871862SpeterDECLARE_MODULE(fb, fb_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 39971862Speter 40042421Syokotaint 40148104Syokotafb_attach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 40242421Syokota{ 40342421Syokota int s; 40442421Syokota 40542421Syokota if (adp->va_index >= adapters) 40642421Syokota return EINVAL; 40742421Syokota if (adapter[adp->va_index] != adp) 40842421Syokota return EINVAL; 40942421Syokota 41042421Syokota s = spltty(); 41142421Syokota adp->va_minor = minor(dev); 41242421Syokota vidcdevsw[adp->va_index] = cdevsw; 41342421Syokota splx(s); 41442421Syokota 41542421Syokota printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 41642421Syokota return 0; 41742421Syokota} 41842421Syokota 41942421Syokotaint 42048104Syokotafb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 42142421Syokota{ 42242421Syokota int s; 42342421Syokota 42442421Syokota if (adp->va_index >= adapters) 42542421Syokota return EINVAL; 42642421Syokota if (adapter[adp->va_index] != adp) 42742421Syokota return EINVAL; 42842421Syokota if (vidcdevsw[adp->va_index] != cdevsw) 42942421Syokota return EINVAL; 43042421Syokota 43142421Syokota s = spltty(); 43242421Syokota vidcdevsw[adp->va_index] = NULL; 43342421Syokota splx(s); 43442421Syokota return 0; 43542421Syokota} 43642421Syokota 437111576Sphk#if experimental 43848104Syokotastatic int 43983366Sjulianfbopen(dev_t dev, int flag, int mode, struct thread *td) 44048104Syokota{ 44148104Syokota int unit; 44248104Syokota 44348104Syokota unit = FB_UNIT(dev); 44448104Syokota if (unit >= adapters) 44548104Syokota return ENXIO; 44648104Syokota if (vidcdevsw[unit] == NULL) 44748104Syokota return ENXIO; 44848104Syokota return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 44983366Sjulian flag, mode, td); 45048104Syokota} 45148104Syokota 45248104Syokotastatic int 45383366Sjulianfbclose(dev_t dev, int flag, int mode, struct thread *td) 45448104Syokota{ 45548104Syokota int unit; 45648104Syokota 45748104Syokota unit = FB_UNIT(dev); 45848104Syokota if (vidcdevsw[unit] == NULL) 45948104Syokota return ENXIO; 46048104Syokota return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 46183366Sjulian flag, mode, td); 46248104Syokota} 46348104Syokota 46448104Syokotastatic int 46548104Syokotafbread(dev_t dev, struct uio *uio, int flag) 46648104Syokota{ 46748104Syokota int unit; 46848104Syokota 46948104Syokota unit = FB_UNIT(dev); 47048104Syokota if (vidcdevsw[unit] == NULL) 47148104Syokota return ENXIO; 47248104Syokota return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 47348104Syokota uio, flag); 47448104Syokota} 47548104Syokota 47648104Syokotastatic int 47748104Syokotafbwrite(dev_t dev, struct uio *uio, int flag) 47848104Syokota{ 47948104Syokota int unit; 48048104Syokota 48148104Syokota unit = FB_UNIT(dev); 48248104Syokota if (vidcdevsw[unit] == NULL) 48348104Syokota return ENXIO; 48448104Syokota return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 48548104Syokota uio, flag); 48648104Syokota} 48748104Syokota 48848104Syokotastatic int 48983366Sjulianfbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 49048104Syokota{ 49148104Syokota int unit; 49248104Syokota 49348104Syokota unit = FB_UNIT(dev); 49448104Syokota if (vidcdevsw[unit] == NULL) 49548104Syokota return ENXIO; 49648104Syokota return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 49783366Sjulian cmd, arg, flag, td); 49848104Syokota} 49948104Syokota 50048104Syokotastatic int 501111462Smuxfbmmap(dev_t dev, vm_offset_t offset, vm_offset_t *paddr, int nprot) 50248104Syokota{ 50348104Syokota int unit; 50448104Syokota 50548104Syokota unit = FB_UNIT(dev); 50648104Syokota if (vidcdevsw[unit] == NULL) 50748104Syokota return ENXIO; 50848104Syokota return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 509111462Smux offset, paddr, nprot); 51048104Syokota} 51148104Syokota 51248557SphkDEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 51348104Syokota#endif 51448104Syokota 51548104Syokota/* 51648104Syokota * Generic frame buffer cdev driver functions 51748104Syokota * Frame buffer subdrivers may call these functions to implement common 51848104Syokota * driver functions. 51948104Syokota */ 52048104Syokota 52148104Syokotaint genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 52283366Sjulian struct thread *td) 52348104Syokota{ 52448104Syokota int s; 52548104Syokota 52648104Syokota s = spltty(); 52748104Syokota if (!(sc->gfb_flags & FB_OPEN)) 52848104Syokota sc->gfb_flags |= FB_OPEN; 52948104Syokota splx(s); 53048104Syokota return 0; 53148104Syokota} 53248104Syokota 53348104Syokotaint genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 53483366Sjulian struct thread *td) 53548104Syokota{ 53648104Syokota int s; 53748104Syokota 53848104Syokota s = spltty(); 53948104Syokota sc->gfb_flags &= ~FB_OPEN; 54048104Syokota splx(s); 54148104Syokota return 0; 54248104Syokota} 54348104Syokota 54448104Syokotaint genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 54548104Syokota int flag) 54648104Syokota{ 54748104Syokota int size; 54848104Syokota int offset; 54948104Syokota int error; 55048104Syokota int len; 55148104Syokota 55248104Syokota error = 0; 55348104Syokota size = adp->va_buffer_size/adp->va_info.vi_planes; 55448104Syokota while (uio->uio_resid > 0) { 55548104Syokota if (uio->uio_offset >= size) 55648104Syokota break; 55748104Syokota offset = uio->uio_offset%adp->va_window_size; 55848104Syokota len = imin(uio->uio_resid, size - uio->uio_offset); 55948104Syokota len = imin(len, adp->va_window_size - offset); 56048104Syokota if (len <= 0) 56148104Syokota break; 56248104Syokota (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 56348104Syokota error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 56448104Syokota if (error) 56548104Syokota break; 56648104Syokota } 56748104Syokota return error; 56848104Syokota} 56948104Syokota 57048104Syokotaint genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 57148104Syokota int flag) 57248104Syokota{ 57348104Syokota return ENODEV; 57448104Syokota} 57548104Syokota 57648104Syokotaint genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 57783366Sjulian caddr_t arg, int flag, struct thread *td) 57848104Syokota{ 57948104Syokota int error; 58048104Syokota 58148104Syokota if (adp == NULL) /* XXX */ 58248104Syokota return ENXIO; 58348104Syokota error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 58448104Syokota if (error == ENOIOCTL) 58548104Syokota error = ENODEV; 58648104Syokota return error; 58748104Syokota} 58848104Syokota 58948104Syokotaint genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 590111462Smux vm_offset_t *paddr, int prot) 59148104Syokota{ 592111462Smux return (*vidsw[adp->va_index]->mmap)(adp, offset, paddr, prot); 59348104Syokota} 59448104Syokota 59542421Syokota#endif /* FB_INSTALL_CDEV */ 59642421Syokota 59742421Syokotastatic char 59842421Syokota*adapter_name(int type) 59942421Syokota{ 60042421Syokota static struct { 60142421Syokota int type; 60242421Syokota char *name; 60342421Syokota } names[] = { 60442421Syokota { KD_MONO, "MDA" }, 60542421Syokota { KD_HERCULES, "Hercules" }, 60642421Syokota { KD_CGA, "CGA" }, 60742421Syokota { KD_EGA, "EGA" }, 60842421Syokota { KD_VGA, "VGA" }, 60942421Syokota { KD_PC98, "PC-98x1" }, 61048104Syokota { KD_TGA, "TGA" }, 61142421Syokota { -1, "Unknown" }, 61242421Syokota }; 61342421Syokota int i; 61442421Syokota 61542421Syokota for (i = 0; names[i].type != -1; ++i) 61642421Syokota if (names[i].type == type) 61742421Syokota break; 61842421Syokota return names[i].name; 61942421Syokota} 62042421Syokota 62148104Syokota/* 62248104Syokota * Generic low-level frame buffer functions 62348104Syokota * The low-level functions in the frame buffer subdriver may use these 62448104Syokota * functions. 62548104Syokota */ 62648104Syokota 62742421Syokotavoid 62842421Syokotafb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 62942421Syokota{ 63042421Syokota if (level <= 0) 63142421Syokota return; 63242421Syokota 63342421Syokota printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 63448104Syokota FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 63542421Syokota adapter_name(adp->va_type), adp->va_type, adp->va_flags); 63694617Sobrien printf("%s%d: port:0x%lx-0x%lx, crtc:0x%lx, mem:0x%lx 0x%x\n", 63794617Sobrien FB_DRIVER_NAME, adp->va_index, (u_long)adp->va_io_base, 63894617Sobrien (u_long)adp->va_io_base + adp->va_io_size - 1, 63994617Sobrien (u_long)adp->va_crtc_addr, (u_long)adp->va_mem_base, 64094617Sobrien adp->va_mem_size); 64142421Syokota printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 64248104Syokota FB_DRIVER_NAME, adp->va_index, 64342421Syokota adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 64448104Syokota printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 64548104Syokota FB_DRIVER_NAME, adp->va_index, 64648104Syokota (void *)adp->va_window, (int)adp->va_window_size/1024, 64748104Syokota (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 64842831Syokota (int)adp->va_buffer_size/1024); 64942421Syokota} 65042421Syokota 65142421Syokotavoid 65242421Syokotafb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 65342421Syokota int level) 65442421Syokota{ 65542421Syokota if (level <= 0) 65642421Syokota return; 65742421Syokota 65842421Syokota printf("%s%d: %s, mode:%d, flags:0x%x ", 65942421Syokota driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 66042421Syokota if (info->vi_flags & V_INFO_GRAPHICS) 66142421Syokota printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 66242421Syokota info->vi_width, info->vi_height, 66342421Syokota info->vi_depth, info->vi_planes, 66442421Syokota info->vi_cwidth, info->vi_cheight); 66542421Syokota else 66642421Syokota printf("T %dx%d, font:%dx%d, ", 66742421Syokota info->vi_width, info->vi_height, 66842421Syokota info->vi_cwidth, info->vi_cheight); 66994617Sobrien printf("win:0x%lx\n", (u_long)info->vi_window); 67042421Syokota} 67148104Syokota 67248104Syokotaint 67348104Syokotafb_type(int adp_type) 67448104Syokota{ 67548104Syokota static struct { 67648104Syokota int fb_type; 67748104Syokota int va_type; 67848104Syokota } types[] = { 67948104Syokota { FBTYPE_MDA, KD_MONO }, 68048104Syokota { FBTYPE_HERCULES, KD_HERCULES }, 68148104Syokota { FBTYPE_CGA, KD_CGA }, 68248104Syokota { FBTYPE_EGA, KD_EGA }, 68348104Syokota { FBTYPE_VGA, KD_VGA }, 68448104Syokota { FBTYPE_PC98, KD_PC98 }, 68548104Syokota { FBTYPE_TGA, KD_TGA }, 68648104Syokota }; 68748104Syokota int i; 68848104Syokota 68948104Syokota for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 69048104Syokota if (types[i].va_type == adp_type) 69148104Syokota return types[i].fb_type; 69248104Syokota } 69348104Syokota return -1; 69448104Syokota} 69548104Syokota 69648104Syokotaint 69748104Syokotafb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 69848104Syokota{ 69948104Syokota int error; 70048104Syokota int s; 70148104Syokota 70248104Syokota /* assert(adp != NULL) */ 70348104Syokota 70448104Syokota error = 0; 70548104Syokota s = spltty(); 70648104Syokota 70748104Syokota switch (cmd) { 70848104Syokota 70948104Syokota case FBIO_ADAPTER: /* get video adapter index */ 71048104Syokota *(int *)arg = adp->va_index; 71148104Syokota break; 71248104Syokota 71348104Syokota case FBIO_ADPTYPE: /* get video adapter type */ 71448104Syokota *(int *)arg = adp->va_type; 71548104Syokota break; 71648104Syokota 71748104Syokota case FBIO_ADPINFO: /* get video adapter info */ 71848104Syokota ((video_adapter_info_t *)arg)->va_index = adp->va_index; 71948104Syokota ((video_adapter_info_t *)arg)->va_type = adp->va_type; 72048104Syokota bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 72148104Syokota imin(strlen(adp->va_name) + 1, 72248104Syokota sizeof(((video_adapter_info_t *)arg)->va_name))); 72348104Syokota ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 72448104Syokota ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 72548104Syokota ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 72648104Syokota ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 72748104Syokota ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 72848104Syokota ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 72948104Syokota ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 73048104Syokota ((video_adapter_info_t *)arg)->va_window 73160742Sgallatin#ifdef __i386__ 73248104Syokota = vtophys(adp->va_window); 73360742Sgallatin#else 73460742Sgallatin = adp->va_window; 73560742Sgallatin#endif 73648104Syokota ((video_adapter_info_t *)arg)->va_window_size 73748104Syokota = adp->va_window_size; 73848104Syokota ((video_adapter_info_t *)arg)->va_window_gran 73948104Syokota = adp->va_window_gran; 74048104Syokota ((video_adapter_info_t *)arg)->va_window_orig 74148104Syokota = adp->va_window_orig; 74248104Syokota ((video_adapter_info_t *)arg)->va_unused0 74360742Sgallatin#ifdef __i386__ 74448104Syokota = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 74560742Sgallatin#else 74660742Sgallatin = adp->va_buffer; 74760742Sgallatin#endif 74848104Syokota ((video_adapter_info_t *)arg)->va_buffer_size 74948104Syokota = adp->va_buffer_size; 75048104Syokota ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 75148104Syokota ((video_adapter_info_t *)arg)->va_initial_mode 75248104Syokota = adp->va_initial_mode; 75348104Syokota ((video_adapter_info_t *)arg)->va_initial_bios_mode 75448104Syokota = adp->va_initial_bios_mode; 75548104Syokota ((video_adapter_info_t *)arg)->va_line_width 75648104Syokota = adp->va_line_width; 75748104Syokota ((video_adapter_info_t *)arg)->va_disp_start.x 75848104Syokota = adp->va_disp_start.x; 75948104Syokota ((video_adapter_info_t *)arg)->va_disp_start.y 76048104Syokota = adp->va_disp_start.y; 76148104Syokota break; 76248104Syokota 76348104Syokota case FBIO_MODEINFO: /* get mode information */ 76448104Syokota error = (*vidsw[adp->va_index]->get_info)(adp, 76548104Syokota ((video_info_t *)arg)->vi_mode, 76648104Syokota (video_info_t *)arg); 76748104Syokota if (error) 76848104Syokota error = ENODEV; 76948104Syokota break; 77048104Syokota 77148104Syokota case FBIO_FINDMODE: /* find a matching video mode */ 77248104Syokota error = (*vidsw[adp->va_index]->query_mode)(adp, 77348104Syokota (video_info_t *)arg); 77448104Syokota break; 77548104Syokota 77648104Syokota case FBIO_GETMODE: /* get video mode */ 77748104Syokota *(int *)arg = adp->va_mode; 77848104Syokota break; 77948104Syokota 78048104Syokota case FBIO_SETMODE: /* set video mode */ 78148104Syokota error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 78248104Syokota if (error) 78348104Syokota error = ENODEV; /* EINVAL? */ 78448104Syokota break; 78548104Syokota 78648104Syokota case FBIO_GETWINORG: /* get frame buffer window origin */ 78748104Syokota *(u_int *)arg = adp->va_window_orig; 78848104Syokota break; 78948104Syokota 79048104Syokota case FBIO_GETDISPSTART: /* get display start address */ 79148104Syokota ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 79248104Syokota ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 79348104Syokota break; 79448104Syokota 79548104Syokota case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 79648104Syokota *(u_int *)arg = adp->va_line_width; 79748104Syokota break; 79848104Syokota 79981039Syokota case FBIO_BLANK: /* blank display */ 80081039Syokota error = (*vidsw[adp->va_index]->blank_display)(adp, *(int *)arg); 80181039Syokota break; 80281039Syokota 80348104Syokota case FBIO_GETPALETTE: /* get color palette */ 80448104Syokota case FBIO_SETPALETTE: /* set color palette */ 80548104Syokota /* XXX */ 80648104Syokota 80748104Syokota case FBIOPUTCMAP: 80848104Syokota case FBIOGETCMAP: 80981039Syokota case FBIOPUTCMAPI: 81081039Syokota case FBIOGETCMAPI: 81148104Syokota /* XXX */ 81248104Syokota 81348104Syokota case FBIO_SETWINORG: /* set frame buffer window origin */ 81448104Syokota case FBIO_SETDISPSTART: /* set display start address */ 81548104Syokota case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 81648104Syokota 81748104Syokota case FBIOGTYPE: 81848104Syokota case FBIOGATTR: 81948104Syokota case FBIOSVIDEO: 82048104Syokota case FBIOGVIDEO: 82181039Syokota case FBIOVERTICAL: 82248104Syokota case FBIOSCURSOR: 82348104Syokota case FBIOGCURSOR: 82448104Syokota case FBIOSCURPOS: 82548104Syokota case FBIOGCURPOS: 82648104Syokota case FBIOGCURMAX: 82781039Syokota case FBIOMONINFO: 82881039Syokota case FBIOGXINFO: 82948104Syokota 83048104Syokota default: 83148104Syokota error = ENODEV; 83248104Syokota break; 83348104Syokota } 83448104Syokota 83548104Syokota splx(s); 83648104Syokota return error; 83748104Syokota} 838