fb.c revision 81039
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 81039 2001-08-02 11:26:30Z yokota $ 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; 8969781Sdwmalone new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK | M_ZERO); 9069781Sdwmalone new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, 9169781Sdwmalone M_WAITOK | M_ZERO); 9248104Syokota#ifdef FB_INSTALL_CDEV 9369781Sdwmalone new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, 9469781Sdwmalone 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 35542421Syokotastatic d_open_t fbopen; 35642421Syokotastatic d_close_t fbclose; 35748104Syokotastatic d_read_t fbread; 35848104Syokotastatic d_write_t fbwrite; 35942421Syokotastatic d_ioctl_t fbioctl; 36042421Syokotastatic d_mmap_t fbmmap; 36142421Syokota 36248104Syokota#define CDEV_MAJOR 123 /* XXX */ 36342421Syokota 36442421Syokotastatic struct cdevsw fb_cdevsw = { 36547625Sphk /* open */ fbopen, 36647625Sphk /* close */ fbclose, 36748104Syokota /* read */ fbread, 36848104Syokota /* write */ fbwrite, 36947625Sphk /* ioctl */ fbioctl, 37047625Sphk /* poll */ nopoll, 37147625Sphk /* mmap */ fbmmap, 37247625Sphk /* strategy */ nostrategy, 37348104Syokota /* name */ FB_DRIVER_NAME, 37447625Sphk /* maj */ CDEV_MAJOR, 37547625Sphk /* dump */ nodump, 37647625Sphk /* psize */ nopsize, 37747625Sphk /* flags */ 0, 37842421Syokota}; 37942421Syokota 38042421Syokota 38171862Speterstatic int 38271862Speterfb_modevent(module_t mod, int type, void *data) 38371862Speter{ 38471862Speter 38571862Speter switch (type) { 38671862Speter case MOD_LOAD: 38747640Sphk cdevsw_add(&fb_cdevsw); 38871862Speter break; 38971862Speter case MOD_UNLOAD: 39071862Speter printf("fb module unload - not possible for this module type\n"); 39171862Speter return EINVAL; 39271862Speter } 39371862Speter return 0; 39471862Speter} 39542421Syokota 39671862Speterstatic moduledata_t fb_mod = { 39771862Speter "fb", 39871862Speter fb_modevent, 39971862Speter NULL 40071862Speter}; 40142421Syokota 40271862SpeterDECLARE_MODULE(fb, fb_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 40371862Speter 40442421Syokotaint 40548104Syokotafb_attach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 40642421Syokota{ 40742421Syokota int s; 40842421Syokota 40942421Syokota if (adp->va_index >= adapters) 41042421Syokota return EINVAL; 41142421Syokota if (adapter[adp->va_index] != adp) 41242421Syokota return EINVAL; 41342421Syokota 41442421Syokota s = spltty(); 41542421Syokota adp->va_minor = minor(dev); 41642421Syokota vidcdevsw[adp->va_index] = cdevsw; 41742421Syokota splx(s); 41842421Syokota 41942421Syokota printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 42042421Syokota return 0; 42142421Syokota} 42242421Syokota 42342421Syokotaint 42448104Syokotafb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 42542421Syokota{ 42642421Syokota int s; 42742421Syokota 42842421Syokota if (adp->va_index >= adapters) 42942421Syokota return EINVAL; 43042421Syokota if (adapter[adp->va_index] != adp) 43142421Syokota return EINVAL; 43242421Syokota if (vidcdevsw[adp->va_index] != cdevsw) 43342421Syokota return EINVAL; 43442421Syokota 43542421Syokota s = spltty(); 43642421Syokota vidcdevsw[adp->va_index] = NULL; 43742421Syokota splx(s); 43842421Syokota return 0; 43942421Syokota} 44042421Syokota 44148104Syokotastatic int 44248104Syokotafbopen(dev_t dev, int flag, int mode, struct proc *p) 44348104Syokota{ 44448104Syokota int unit; 44548104Syokota 44648104Syokota unit = FB_UNIT(dev); 44748104Syokota if (unit >= adapters) 44848104Syokota return ENXIO; 44948104Syokota if (vidcdevsw[unit] == NULL) 45048104Syokota return ENXIO; 45148104Syokota return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 45248104Syokota flag, mode, p); 45348104Syokota} 45448104Syokota 45548104Syokotastatic int 45648104Syokotafbclose(dev_t dev, int flag, int mode, struct proc *p) 45748104Syokota{ 45848104Syokota int unit; 45948104Syokota 46048104Syokota unit = FB_UNIT(dev); 46148104Syokota if (vidcdevsw[unit] == NULL) 46248104Syokota return ENXIO; 46348104Syokota return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 46448104Syokota flag, mode, p); 46548104Syokota} 46648104Syokota 46748104Syokotastatic int 46848104Syokotafbread(dev_t dev, struct uio *uio, int flag) 46948104Syokota{ 47048104Syokota int unit; 47148104Syokota 47248104Syokota unit = FB_UNIT(dev); 47348104Syokota if (vidcdevsw[unit] == NULL) 47448104Syokota return ENXIO; 47548104Syokota return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 47648104Syokota uio, flag); 47748104Syokota} 47848104Syokota 47948104Syokotastatic int 48048104Syokotafbwrite(dev_t dev, struct uio *uio, int flag) 48148104Syokota{ 48248104Syokota int unit; 48348104Syokota 48448104Syokota unit = FB_UNIT(dev); 48548104Syokota if (vidcdevsw[unit] == NULL) 48648104Syokota return ENXIO; 48748104Syokota return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 48848104Syokota uio, flag); 48948104Syokota} 49048104Syokota 49148104Syokotastatic int 49248104Syokotafbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 49348104Syokota{ 49448104Syokota int unit; 49548104Syokota 49648104Syokota unit = FB_UNIT(dev); 49748104Syokota if (vidcdevsw[unit] == NULL) 49848104Syokota return ENXIO; 49948104Syokota return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 50048104Syokota cmd, arg, flag, p); 50148104Syokota} 50248104Syokota 50348104Syokotastatic int 50448104Syokotafbmmap(dev_t dev, vm_offset_t offset, int nprot) 50548104Syokota{ 50648104Syokota int unit; 50748104Syokota 50848104Syokota unit = FB_UNIT(dev); 50948104Syokota if (vidcdevsw[unit] == NULL) 51048104Syokota return ENXIO; 51148104Syokota return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 51248104Syokota offset, nprot); 51348104Syokota} 51448104Syokota 51548104Syokota#if experimental 51648557SphkDEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 51748104Syokota#endif 51848104Syokota 51948104Syokota/* 52048104Syokota * Generic frame buffer cdev driver functions 52148104Syokota * Frame buffer subdrivers may call these functions to implement common 52248104Syokota * driver functions. 52348104Syokota */ 52448104Syokota 52548104Syokotaint genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 52648104Syokota struct proc *p) 52748104Syokota{ 52848104Syokota int s; 52948104Syokota 53048104Syokota s = spltty(); 53148104Syokota if (!(sc->gfb_flags & FB_OPEN)) 53248104Syokota sc->gfb_flags |= FB_OPEN; 53348104Syokota splx(s); 53448104Syokota return 0; 53548104Syokota} 53648104Syokota 53748104Syokotaint genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 53848104Syokota struct proc *p) 53948104Syokota{ 54048104Syokota int s; 54148104Syokota 54248104Syokota s = spltty(); 54348104Syokota sc->gfb_flags &= ~FB_OPEN; 54448104Syokota splx(s); 54548104Syokota return 0; 54648104Syokota} 54748104Syokota 54848104Syokotaint genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 54948104Syokota int flag) 55048104Syokota{ 55148104Syokota int size; 55248104Syokota int offset; 55348104Syokota int error; 55448104Syokota int len; 55548104Syokota 55648104Syokota error = 0; 55748104Syokota size = adp->va_buffer_size/adp->va_info.vi_planes; 55848104Syokota while (uio->uio_resid > 0) { 55948104Syokota if (uio->uio_offset >= size) 56048104Syokota break; 56148104Syokota offset = uio->uio_offset%adp->va_window_size; 56248104Syokota len = imin(uio->uio_resid, size - uio->uio_offset); 56348104Syokota len = imin(len, adp->va_window_size - offset); 56448104Syokota if (len <= 0) 56548104Syokota break; 56648104Syokota (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 56748104Syokota error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 56848104Syokota if (error) 56948104Syokota break; 57048104Syokota } 57148104Syokota return error; 57248104Syokota} 57348104Syokota 57448104Syokotaint genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 57548104Syokota int flag) 57648104Syokota{ 57748104Syokota return ENODEV; 57848104Syokota} 57948104Syokota 58048104Syokotaint genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 58148104Syokota caddr_t arg, int flag, struct proc *p) 58248104Syokota{ 58348104Syokota int error; 58448104Syokota 58548104Syokota if (adp == NULL) /* XXX */ 58648104Syokota return ENXIO; 58748104Syokota error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 58848104Syokota if (error == ENOIOCTL) 58948104Syokota error = ENODEV; 59048104Syokota return error; 59148104Syokota} 59248104Syokota 59348104Syokotaint genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 59448104Syokota int prot) 59548104Syokota{ 59648104Syokota return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 59748104Syokota} 59848104Syokota 59942421Syokota#endif /* FB_INSTALL_CDEV */ 60042421Syokota 60142421Syokotastatic char 60242421Syokota*adapter_name(int type) 60342421Syokota{ 60442421Syokota static struct { 60542421Syokota int type; 60642421Syokota char *name; 60742421Syokota } names[] = { 60842421Syokota { KD_MONO, "MDA" }, 60942421Syokota { KD_HERCULES, "Hercules" }, 61042421Syokota { KD_CGA, "CGA" }, 61142421Syokota { KD_EGA, "EGA" }, 61242421Syokota { KD_VGA, "VGA" }, 61342421Syokota { KD_PC98, "PC-98x1" }, 61448104Syokota { KD_TGA, "TGA" }, 61542421Syokota { -1, "Unknown" }, 61642421Syokota }; 61742421Syokota int i; 61842421Syokota 61942421Syokota for (i = 0; names[i].type != -1; ++i) 62042421Syokota if (names[i].type == type) 62142421Syokota break; 62242421Syokota return names[i].name; 62342421Syokota} 62442421Syokota 62548104Syokota/* 62648104Syokota * Generic low-level frame buffer functions 62748104Syokota * The low-level functions in the frame buffer subdriver may use these 62848104Syokota * functions. 62948104Syokota */ 63048104Syokota 63142421Syokotavoid 63242421Syokotafb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 63342421Syokota{ 63442421Syokota if (level <= 0) 63542421Syokota return; 63642421Syokota 63742421Syokota printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 63848104Syokota FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 63942421Syokota adapter_name(adp->va_type), adp->va_type, adp->va_flags); 64042421Syokota printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 64148104Syokota FB_DRIVER_NAME, adp->va_index, 64242421Syokota adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 64342421Syokota adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 64442421Syokota printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 64548104Syokota FB_DRIVER_NAME, adp->va_index, 64642421Syokota adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 64748104Syokota printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 64848104Syokota FB_DRIVER_NAME, adp->va_index, 64948104Syokota (void *)adp->va_window, (int)adp->va_window_size/1024, 65048104Syokota (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 65142831Syokota (int)adp->va_buffer_size/1024); 65242421Syokota} 65342421Syokota 65442421Syokotavoid 65542421Syokotafb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 65642421Syokota int level) 65742421Syokota{ 65842421Syokota if (level <= 0) 65942421Syokota return; 66042421Syokota 66142421Syokota printf("%s%d: %s, mode:%d, flags:0x%x ", 66242421Syokota driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 66342421Syokota if (info->vi_flags & V_INFO_GRAPHICS) 66442421Syokota printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 66542421Syokota info->vi_width, info->vi_height, 66642421Syokota info->vi_depth, info->vi_planes, 66742421Syokota info->vi_cwidth, info->vi_cheight); 66842421Syokota else 66942421Syokota printf("T %dx%d, font:%dx%d, ", 67042421Syokota info->vi_width, info->vi_height, 67142421Syokota info->vi_cwidth, info->vi_cheight); 67242421Syokota printf("win:0x%x\n", info->vi_window); 67342421Syokota} 67448104Syokota 67548104Syokotaint 67648104Syokotafb_type(int adp_type) 67748104Syokota{ 67848104Syokota static struct { 67948104Syokota int fb_type; 68048104Syokota int va_type; 68148104Syokota } types[] = { 68248104Syokota { FBTYPE_MDA, KD_MONO }, 68348104Syokota { FBTYPE_HERCULES, KD_HERCULES }, 68448104Syokota { FBTYPE_CGA, KD_CGA }, 68548104Syokota { FBTYPE_EGA, KD_EGA }, 68648104Syokota { FBTYPE_VGA, KD_VGA }, 68748104Syokota { FBTYPE_PC98, KD_PC98 }, 68848104Syokota { FBTYPE_TGA, KD_TGA }, 68948104Syokota }; 69048104Syokota int i; 69148104Syokota 69248104Syokota for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 69348104Syokota if (types[i].va_type == adp_type) 69448104Syokota return types[i].fb_type; 69548104Syokota } 69648104Syokota return -1; 69748104Syokota} 69848104Syokota 69948104Syokotaint 70048104Syokotafb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 70148104Syokota{ 70248104Syokota int error; 70348104Syokota int s; 70448104Syokota 70548104Syokota /* assert(adp != NULL) */ 70648104Syokota 70748104Syokota error = 0; 70848104Syokota s = spltty(); 70948104Syokota 71048104Syokota switch (cmd) { 71148104Syokota 71248104Syokota case FBIO_ADAPTER: /* get video adapter index */ 71348104Syokota *(int *)arg = adp->va_index; 71448104Syokota break; 71548104Syokota 71648104Syokota case FBIO_ADPTYPE: /* get video adapter type */ 71748104Syokota *(int *)arg = adp->va_type; 71848104Syokota break; 71948104Syokota 72048104Syokota case FBIO_ADPINFO: /* get video adapter info */ 72148104Syokota ((video_adapter_info_t *)arg)->va_index = adp->va_index; 72248104Syokota ((video_adapter_info_t *)arg)->va_type = adp->va_type; 72348104Syokota bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 72448104Syokota imin(strlen(adp->va_name) + 1, 72548104Syokota sizeof(((video_adapter_info_t *)arg)->va_name))); 72648104Syokota ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 72748104Syokota ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 72848104Syokota ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 72948104Syokota ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 73048104Syokota ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 73148104Syokota ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 73248104Syokota ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 73348104Syokota ((video_adapter_info_t *)arg)->va_window 73460742Sgallatin#ifdef __i386__ 73548104Syokota = vtophys(adp->va_window); 73660742Sgallatin#else 73760742Sgallatin = adp->va_window; 73860742Sgallatin#endif 73948104Syokota ((video_adapter_info_t *)arg)->va_window_size 74048104Syokota = adp->va_window_size; 74148104Syokota ((video_adapter_info_t *)arg)->va_window_gran 74248104Syokota = adp->va_window_gran; 74348104Syokota ((video_adapter_info_t *)arg)->va_window_orig 74448104Syokota = adp->va_window_orig; 74548104Syokota ((video_adapter_info_t *)arg)->va_unused0 74660742Sgallatin#ifdef __i386__ 74748104Syokota = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 74860742Sgallatin#else 74960742Sgallatin = adp->va_buffer; 75060742Sgallatin#endif 75148104Syokota ((video_adapter_info_t *)arg)->va_buffer_size 75248104Syokota = adp->va_buffer_size; 75348104Syokota ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 75448104Syokota ((video_adapter_info_t *)arg)->va_initial_mode 75548104Syokota = adp->va_initial_mode; 75648104Syokota ((video_adapter_info_t *)arg)->va_initial_bios_mode 75748104Syokota = adp->va_initial_bios_mode; 75848104Syokota ((video_adapter_info_t *)arg)->va_line_width 75948104Syokota = adp->va_line_width; 76048104Syokota ((video_adapter_info_t *)arg)->va_disp_start.x 76148104Syokota = adp->va_disp_start.x; 76248104Syokota ((video_adapter_info_t *)arg)->va_disp_start.y 76348104Syokota = adp->va_disp_start.y; 76448104Syokota break; 76548104Syokota 76648104Syokota case FBIO_MODEINFO: /* get mode information */ 76748104Syokota error = (*vidsw[adp->va_index]->get_info)(adp, 76848104Syokota ((video_info_t *)arg)->vi_mode, 76948104Syokota (video_info_t *)arg); 77048104Syokota if (error) 77148104Syokota error = ENODEV; 77248104Syokota break; 77348104Syokota 77448104Syokota case FBIO_FINDMODE: /* find a matching video mode */ 77548104Syokota error = (*vidsw[adp->va_index]->query_mode)(adp, 77648104Syokota (video_info_t *)arg); 77748104Syokota break; 77848104Syokota 77948104Syokota case FBIO_GETMODE: /* get video mode */ 78048104Syokota *(int *)arg = adp->va_mode; 78148104Syokota break; 78248104Syokota 78348104Syokota case FBIO_SETMODE: /* set video mode */ 78448104Syokota error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 78548104Syokota if (error) 78648104Syokota error = ENODEV; /* EINVAL? */ 78748104Syokota break; 78848104Syokota 78948104Syokota case FBIO_GETWINORG: /* get frame buffer window origin */ 79048104Syokota *(u_int *)arg = adp->va_window_orig; 79148104Syokota break; 79248104Syokota 79348104Syokota case FBIO_GETDISPSTART: /* get display start address */ 79448104Syokota ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 79548104Syokota ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 79648104Syokota break; 79748104Syokota 79848104Syokota case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 79948104Syokota *(u_int *)arg = adp->va_line_width; 80048104Syokota break; 80148104Syokota 80281039Syokota case FBIO_BLANK: /* blank display */ 80381039Syokota error = (*vidsw[adp->va_index]->blank_display)(adp, *(int *)arg); 80481039Syokota break; 80581039Syokota 80648104Syokota case FBIO_GETPALETTE: /* get color palette */ 80748104Syokota case FBIO_SETPALETTE: /* set color palette */ 80848104Syokota /* XXX */ 80948104Syokota 81048104Syokota case FBIOPUTCMAP: 81148104Syokota case FBIOGETCMAP: 81281039Syokota case FBIOPUTCMAPI: 81381039Syokota case FBIOGETCMAPI: 81448104Syokota /* XXX */ 81548104Syokota 81648104Syokota case FBIO_SETWINORG: /* set frame buffer window origin */ 81748104Syokota case FBIO_SETDISPSTART: /* set display start address */ 81848104Syokota case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 81948104Syokota 82048104Syokota case FBIOGTYPE: 82148104Syokota case FBIOGATTR: 82248104Syokota case FBIOSVIDEO: 82348104Syokota case FBIOGVIDEO: 82481039Syokota case FBIOVERTICAL: 82548104Syokota case FBIOSCURSOR: 82648104Syokota case FBIOGCURSOR: 82748104Syokota case FBIOSCURPOS: 82848104Syokota case FBIOGCURPOS: 82948104Syokota case FBIOGCURMAX: 83081039Syokota case FBIOMONINFO: 83181039Syokota case FBIOGXINFO: 83248104Syokota 83348104Syokota default: 83448104Syokota error = ENODEV; 83548104Syokota break; 83648104Syokota } 83748104Syokota 83848104Syokota splx(s); 83948104Syokota return error; 84048104Syokota} 841