fb.c revision 50477
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 50477 1999-08-28 01:08:13Z peter $ 2942421Syokota */ 3042421Syokota 3142421Syokota#include "fb.h" 3242421Syokota#include "opt_fb.h" 3342421Syokota 3442421Syokota#include <sys/param.h> 3542421Syokota#include <sys/systm.h> 3642421Syokota#include <sys/conf.h> 3748104Syokota#include <sys/bus.h> 3842421Syokota#include <sys/kernel.h> 3942421Syokota#include <sys/malloc.h> 4048104Syokota#include <sys/uio.h> 4148104Syokota#include <sys/fbio.h> 4242421Syokota 4348104Syokota#include <vm/vm.h> 4448104Syokota#include <vm/pmap.h> 4542421Syokota 4642421Syokota#include <dev/fb/fbreg.h> 4742421Syokota 4842421Syokota/* local arrays */ 4942421Syokota 5042421Syokota/* 5142421Syokota * We need at least one entry each in order to initialize a video card 5242421Syokota * for the kernel console. The arrays will be increased dynamically 5342421Syokota * when necessary. 5442421Syokota */ 5542564Syokota 5648104Syokotastatic int vid_malloc; 5742564Syokotastatic int adapters = 1; 5842421Syokotastatic video_adapter_t *adp_ini; 5942564Syokotastatic video_adapter_t **adapter = &adp_ini; 6042421Syokotastatic video_switch_t *vidsw_ini; 6142421Syokota video_switch_t **vidsw = &vidsw_ini; 6242421Syokota 6342564Syokota#ifdef FB_INSTALL_CDEV 6448104Syokotastatic struct cdevsw *vidcdevsw_ini; 6548104Syokotastatic struct cdevsw **vidcdevsw = &vidcdevsw_ini; 6648104Syokota#endif 6742564Syokota 6842421Syokota#define ARRAY_DELTA 4 6942421Syokota 7048104Syokotastatic int 7142421Syokotavid_realloc_array(void) 7242421Syokota{ 7342421Syokota video_adapter_t **new_adp; 7442421Syokota video_switch_t **new_vidsw; 7548104Syokota#ifdef FB_INSTALL_CDEV 7642421Syokota struct cdevsw **new_cdevsw; 7748104Syokota#endif 7842421Syokota int newsize; 7942421Syokota int s; 8042421Syokota 8148104Syokota if (!vid_malloc) 8248104Syokota return ENOMEM; 8348104Syokota 8442421Syokota s = spltty(); 8542421Syokota newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 8642421Syokota new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK); 8742421Syokota new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, M_WAITOK); 8848104Syokota#ifdef FB_INSTALL_CDEV 8942421Syokota new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, M_WAITOK); 9048104Syokota#endif 9142421Syokota bzero(new_adp, sizeof(*new_adp)*newsize); 9242421Syokota bzero(new_vidsw, sizeof(*new_vidsw)*newsize); 9342421Syokota bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 9442421Syokota bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 9548104Syokota#ifdef FB_INSTALL_CDEV 9648104Syokota bzero(new_cdevsw, sizeof(*new_cdevsw)*newsize); 9742421Syokota bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 9848104Syokota#endif 9942421Syokota if (adapters > 1) { 10042421Syokota free(adapter, M_DEVBUF); 10142421Syokota free(vidsw, M_DEVBUF); 10248104Syokota#ifdef FB_INSTALL_CDEV 10342421Syokota free(vidcdevsw, M_DEVBUF); 10448104Syokota#endif 10542421Syokota } 10642421Syokota adapter = new_adp; 10742421Syokota vidsw = new_vidsw; 10848104Syokota#ifdef FB_INSTALL_CDEV 10942421Syokota vidcdevsw = new_cdevsw; 11048104Syokota#endif 11142421Syokota adapters = newsize; 11242421Syokota splx(s); 11342421Syokota 11442421Syokota if (bootverbose) 11542421Syokota printf("fb: new array size %d\n", adapters); 11648104Syokota 11748104Syokota return 0; 11842421Syokota} 11942421Syokota 12048104Syokotastatic void 12148104Syokotavid_malloc_init(void *arg) 12248104Syokota{ 12348104Syokota vid_malloc = TRUE; 12448104Syokota} 12542564Syokota 12648104SyokotaSYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); 12748104Syokota 12842421Syokota/* 12942421Syokota * Low-level frame buffer driver functions 13042421Syokota * frame buffer subdrivers, such as the VGA driver, call these functions 13142421Syokota * to initialize the video_adapter structure and register it to the virtual 13242421Syokota * frame buffer driver `fb'. 13342421Syokota */ 13442421Syokota 13542421Syokota/* initialize the video_adapter_t structure */ 13642421Syokotavoid 13742421Syokotavid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 13842421Syokota{ 13942421Syokota adp->va_flags = 0; 14042421Syokota adp->va_name = name; 14142421Syokota adp->va_type = type; 14242421Syokota adp->va_unit = unit; 14342421Syokota} 14442421Syokota 14542421Syokota/* Register a video adapter */ 14642421Syokotaint 14742421Syokotavid_register(video_adapter_t *adp) 14842421Syokota{ 14948104Syokota const video_driver_t **list; 15048104Syokota const video_driver_t *p; 15142421Syokota int index; 15242421Syokota 15342421Syokota for (index = 0; index < adapters; ++index) { 15442421Syokota if (adapter[index] == NULL) 15542421Syokota break; 15642421Syokota } 15748104Syokota if (index >= adapters) { 15848104Syokota if (vid_realloc_array()) 15948104Syokota return -1; 16048104Syokota } 16142421Syokota 16242421Syokota adp->va_index = index; 16342421Syokota adp->va_token = NULL; 16448104Syokota list = (const video_driver_t **)videodriver_set.ls_items; 16542421Syokota while ((p = *list++) != NULL) { 16642421Syokota if (strcmp(p->name, adp->va_name) == 0) { 16742421Syokota adapter[index] = adp; 16842421Syokota vidsw[index] = p->vidsw; 16942421Syokota return index; 17042421Syokota } 17142421Syokota } 17242421Syokota 17342421Syokota return -1; 17442421Syokota} 17542421Syokota 17642421Syokotaint 17742421Syokotavid_unregister(video_adapter_t *adp) 17842421Syokota{ 17942421Syokota if ((adp->va_index < 0) || (adp->va_index >= adapters)) 18042421Syokota return ENOENT; 18142421Syokota if (adapter[adp->va_index] != adp) 18242421Syokota return ENOENT; 18342421Syokota 18442421Syokota adapter[adp->va_index] = NULL; 18542421Syokota vidsw[adp->va_index] = NULL; 18642421Syokota return 0; 18742421Syokota} 18842421Syokota 18942421Syokota/* Get video I/O function table */ 19042421Syokotavideo_switch_t 19142421Syokota*vid_get_switch(char *name) 19242421Syokota{ 19348104Syokota const video_driver_t **list; 19448104Syokota const video_driver_t *p; 19542421Syokota 19648104Syokota list = (const video_driver_t **)videodriver_set.ls_items; 19742421Syokota while ((p = *list++) != NULL) { 19842421Syokota if (strcmp(p->name, name) == 0) 19942421Syokota return p->vidsw; 20042421Syokota } 20142421Syokota 20242421Syokota return NULL; 20342421Syokota} 20442421Syokota 20542421Syokota/* 20642421Syokota * Video card client functions 20742421Syokota * Video card clients, such as the console driver `syscons' and the frame 20842421Syokota * buffer cdev driver, use these functions to claim and release a card for 20942421Syokota * exclusive use. 21042421Syokota */ 21142421Syokota 21242421Syokota/* find the video card specified by a driver name and a unit number */ 21342421Syokotaint 21442421Syokotavid_find_adapter(char *driver, int unit) 21542421Syokota{ 21642421Syokota int i; 21742421Syokota 21842421Syokota for (i = 0; i < adapters; ++i) { 21942421Syokota if (adapter[i] == NULL) 22042421Syokota continue; 22142421Syokota if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 22242421Syokota continue; 22342421Syokota if ((unit != -1) && (adapter[i]->va_unit != unit)) 22442421Syokota continue; 22542421Syokota return i; 22642421Syokota } 22742421Syokota return -1; 22842421Syokota} 22942421Syokota 23042421Syokota/* allocate a video card */ 23142421Syokotaint 23242421Syokotavid_allocate(char *driver, int unit, void *id) 23342421Syokota{ 23442421Syokota int index; 23542421Syokota int s; 23642421Syokota 23742421Syokota s = spltty(); 23842421Syokota index = vid_find_adapter(driver, unit); 23942421Syokota if (index >= 0) { 24042421Syokota if (adapter[index]->va_token) { 24142421Syokota splx(s); 24242421Syokota return -1; 24342421Syokota } 24442421Syokota adapter[index]->va_token = id; 24542421Syokota } 24642421Syokota splx(s); 24742421Syokota return index; 24842421Syokota} 24942421Syokota 25042421Syokotaint 25142421Syokotavid_release(video_adapter_t *adp, void *id) 25242421Syokota{ 25342421Syokota int error; 25442421Syokota int s; 25542421Syokota 25642421Syokota s = spltty(); 25742421Syokota if (adp->va_token == NULL) { 25842421Syokota error = EINVAL; 25942421Syokota } else if (adp->va_token != id) { 26042421Syokota error = EPERM; 26142421Syokota } else { 26242421Syokota adp->va_token = NULL; 26342421Syokota error = 0; 26442421Syokota } 26542421Syokota splx(s); 26642421Syokota return error; 26742421Syokota} 26842421Syokota 26942421Syokota/* Get a video adapter structure */ 27042421Syokotavideo_adapter_t 27142421Syokota*vid_get_adapter(int index) 27242421Syokota{ 27342421Syokota if ((index < 0) || (index >= adapters)) 27442421Syokota return NULL; 27542421Syokota return adapter[index]; 27642421Syokota} 27742421Syokota 27842421Syokota/* Configure drivers: this is a backdoor for the console driver XXX */ 27942421Syokotaint 28042421Syokotavid_configure(int flags) 28142421Syokota{ 28248104Syokota const video_driver_t **list; 28348104Syokota const video_driver_t *p; 28442421Syokota 28548104Syokota list = (const video_driver_t **)videodriver_set.ls_items; 28642421Syokota while ((p = *list++) != NULL) { 28742421Syokota if (p->configure != NULL) 28842421Syokota (*p->configure)(flags); 28942421Syokota } 29042421Syokota 29142421Syokota return 0; 29242421Syokota} 29342421Syokota 29442421Syokota/* 29542421Syokota * Virtual frame buffer cdev driver functions 29642421Syokota * The virtual frame buffer driver dispatches driver functions to 29742421Syokota * appropriate subdrivers. 29842421Syokota */ 29942421Syokota 30048104Syokota#define FB_DRIVER_NAME "fb" 30142421Syokota 30242421Syokota#ifdef FB_INSTALL_CDEV 30342421Syokota 30448104Syokota#if experimental 30548104Syokota 30648104Syokotastatic devclass_t fb_devclass; 30748104Syokota 30848104Syokotastatic int fbprobe(device_t dev); 30948104Syokotastatic int fbattach(device_t dev); 31048104Syokota 31148104Syokotastatic device_method_t fb_methods[] = { 31248104Syokota DEVMETHOD(device_probe, fbprobe), 31348104Syokota DEVMETHOD(device_attach, fbattach), 31448104Syokota 31548104Syokota DEVMETHOD(bus_print_child, bus_generic_print_child), 31648104Syokota { 0, 0 } 31748104Syokota}; 31848104Syokota 31948104Syokotastatic driver_t fb_driver = { 32048104Syokota FB_DRIVER_NAME, 32148104Syokota fb_methods, 32248104Syokota 0, 32348104Syokota}; 32448104Syokota 32548104Syokotastatic int 32648104Syokotafbprobe(device_t dev) 32748104Syokota{ 32848104Syokota int unit; 32948104Syokota 33048104Syokota unit = device_get_unit(dev); 33148104Syokota if (unit >= adapters) 33248104Syokota return ENXIO; 33348104Syokota if (adapter[unit] == NULL) 33448104Syokota return ENXIO; 33548104Syokota 33648104Syokota device_set_desc(dev, "generic frame buffer"); 33748104Syokota return 0; 33848104Syokota} 33948104Syokota 34048104Syokotastatic int 34148104Syokotafbattach(device_t dev) 34248104Syokota{ 34348104Syokota printf("fbattach: about to attach children\n"); 34448104Syokota bus_generic_attach(dev); 34548104Syokota return 0; 34648104Syokota} 34748104Syokota 34848104Syokota#endif /* experimental */ 34948104Syokota 35042421Syokota#define FB_UNIT(dev) minor(dev) 35142421Syokota#define FB_MKMINOR(unit) (u) 35242421Syokota 35342421Syokotastatic d_open_t fbopen; 35442421Syokotastatic d_close_t fbclose; 35548104Syokotastatic d_read_t fbread; 35648104Syokotastatic d_write_t fbwrite; 35742421Syokotastatic d_ioctl_t fbioctl; 35842421Syokotastatic d_mmap_t fbmmap; 35942421Syokota 36048104Syokota#define CDEV_MAJOR 123 /* XXX */ 36142421Syokota 36242421Syokotastatic struct cdevsw fb_cdevsw = { 36347625Sphk /* open */ fbopen, 36447625Sphk /* close */ fbclose, 36548104Syokota /* read */ fbread, 36648104Syokota /* write */ fbwrite, 36747625Sphk /* ioctl */ fbioctl, 36847625Sphk /* stop */ nostop, 36947625Sphk /* reset */ noreset, 37047625Sphk /* devtotty */ nodevtotty, 37147625Sphk /* poll */ nopoll, 37247625Sphk /* mmap */ fbmmap, 37347625Sphk /* strategy */ nostrategy, 37448104Syokota /* name */ FB_DRIVER_NAME, 37547625Sphk /* parms */ noparms, 37647625Sphk /* maj */ CDEV_MAJOR, 37747625Sphk /* dump */ nodump, 37847625Sphk /* psize */ nopsize, 37947625Sphk /* flags */ 0, 38047625Sphk /* maxio */ 0, 38147625Sphk /* bmaj */ -1 38242421Syokota}; 38342421Syokota 38442421Syokotastatic void 38542421Syokotavfbattach(void *arg) 38642421Syokota{ 38742421Syokota static int fb_devsw_installed = FALSE; 38842421Syokota 38942421Syokota if (!fb_devsw_installed) { 39047640Sphk cdevsw_add(&fb_cdevsw); 39142421Syokota fb_devsw_installed = TRUE; 39242421Syokota } 39342421Syokota} 39442421Syokota 39542421SyokotaPSEUDO_SET(vfbattach, fb); 39642421Syokota 39742421Syokotaint 39848104Syokotafb_attach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 39942421Syokota{ 40042421Syokota int s; 40142421Syokota 40242421Syokota if (adp->va_index >= adapters) 40342421Syokota return EINVAL; 40442421Syokota if (adapter[adp->va_index] != adp) 40542421Syokota return EINVAL; 40642421Syokota 40742421Syokota s = spltty(); 40842421Syokota adp->va_minor = minor(dev); 40942421Syokota vidcdevsw[adp->va_index] = cdevsw; 41042421Syokota splx(s); 41142421Syokota 41242421Syokota printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 41342421Syokota return 0; 41442421Syokota} 41542421Syokota 41642421Syokotaint 41748104Syokotafb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 41842421Syokota{ 41942421Syokota int s; 42042421Syokota 42142421Syokota if (adp->va_index >= adapters) 42242421Syokota return EINVAL; 42342421Syokota if (adapter[adp->va_index] != adp) 42442421Syokota return EINVAL; 42542421Syokota if (vidcdevsw[adp->va_index] != cdevsw) 42642421Syokota return EINVAL; 42742421Syokota 42842421Syokota s = spltty(); 42942421Syokota vidcdevsw[adp->va_index] = NULL; 43042421Syokota splx(s); 43142421Syokota return 0; 43242421Syokota} 43342421Syokota 43448104Syokotastatic int 43548104Syokotafbopen(dev_t dev, int flag, int mode, struct proc *p) 43648104Syokota{ 43748104Syokota int unit; 43848104Syokota 43948104Syokota unit = FB_UNIT(dev); 44048104Syokota if (unit >= adapters) 44148104Syokota return ENXIO; 44248104Syokota if (vidcdevsw[unit] == NULL) 44348104Syokota return ENXIO; 44448104Syokota return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 44548104Syokota flag, mode, p); 44648104Syokota} 44748104Syokota 44848104Syokotastatic int 44948104Syokotafbclose(dev_t dev, int flag, int mode, struct proc *p) 45048104Syokota{ 45148104Syokota int unit; 45248104Syokota 45348104Syokota unit = FB_UNIT(dev); 45448104Syokota if (vidcdevsw[unit] == NULL) 45548104Syokota return ENXIO; 45648104Syokota return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 45748104Syokota flag, mode, p); 45848104Syokota} 45948104Syokota 46048104Syokotastatic int 46148104Syokotafbread(dev_t dev, struct uio *uio, int flag) 46248104Syokota{ 46348104Syokota int unit; 46448104Syokota 46548104Syokota unit = FB_UNIT(dev); 46648104Syokota if (vidcdevsw[unit] == NULL) 46748104Syokota return ENXIO; 46848104Syokota return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 46948104Syokota uio, flag); 47048104Syokota} 47148104Syokota 47248104Syokotastatic int 47348104Syokotafbwrite(dev_t dev, struct uio *uio, int flag) 47448104Syokota{ 47548104Syokota int unit; 47648104Syokota 47748104Syokota unit = FB_UNIT(dev); 47848104Syokota if (vidcdevsw[unit] == NULL) 47948104Syokota return ENXIO; 48048104Syokota return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 48148104Syokota uio, flag); 48248104Syokota} 48348104Syokota 48448104Syokotastatic int 48548104Syokotafbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 48648104Syokota{ 48748104Syokota int unit; 48848104Syokota 48948104Syokota unit = FB_UNIT(dev); 49048104Syokota if (vidcdevsw[unit] == NULL) 49148104Syokota return ENXIO; 49248104Syokota return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 49348104Syokota cmd, arg, flag, p); 49448104Syokota} 49548104Syokota 49648104Syokotastatic int 49748104Syokotafbmmap(dev_t dev, vm_offset_t offset, int nprot) 49848104Syokota{ 49948104Syokota int unit; 50048104Syokota 50148104Syokota unit = FB_UNIT(dev); 50248104Syokota if (vidcdevsw[unit] == NULL) 50348104Syokota return ENXIO; 50448104Syokota return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 50548104Syokota offset, nprot); 50648104Syokota} 50748104Syokota 50848104Syokota#if experimental 50948557SphkDEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 51048104Syokota#endif 51148104Syokota 51248104Syokota/* 51348104Syokota * Generic frame buffer cdev driver functions 51448104Syokota * Frame buffer subdrivers may call these functions to implement common 51548104Syokota * driver functions. 51648104Syokota */ 51748104Syokota 51848104Syokotaint genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 51948104Syokota struct proc *p) 52048104Syokota{ 52148104Syokota int s; 52248104Syokota 52348104Syokota s = spltty(); 52448104Syokota if (!(sc->gfb_flags & FB_OPEN)) 52548104Syokota sc->gfb_flags |= FB_OPEN; 52648104Syokota splx(s); 52748104Syokota return 0; 52848104Syokota} 52948104Syokota 53048104Syokotaint genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 53148104Syokota struct proc *p) 53248104Syokota{ 53348104Syokota int s; 53448104Syokota 53548104Syokota s = spltty(); 53648104Syokota sc->gfb_flags &= ~FB_OPEN; 53748104Syokota splx(s); 53848104Syokota return 0; 53948104Syokota} 54048104Syokota 54148104Syokotaint genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 54248104Syokota int flag) 54348104Syokota{ 54448104Syokota int size; 54548104Syokota int offset; 54648104Syokota int error; 54748104Syokota int len; 54848104Syokota 54948104Syokota error = 0; 55048104Syokota size = adp->va_buffer_size/adp->va_info.vi_planes; 55148104Syokota while (uio->uio_resid > 0) { 55248104Syokota if (uio->uio_offset >= size) 55348104Syokota break; 55448104Syokota offset = uio->uio_offset%adp->va_window_size; 55548104Syokota len = imin(uio->uio_resid, size - uio->uio_offset); 55648104Syokota len = imin(len, adp->va_window_size - offset); 55748104Syokota if (len <= 0) 55848104Syokota break; 55948104Syokota (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 56048104Syokota error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 56148104Syokota if (error) 56248104Syokota break; 56348104Syokota } 56448104Syokota return error; 56548104Syokota} 56648104Syokota 56748104Syokotaint genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 56848104Syokota int flag) 56948104Syokota{ 57048104Syokota return ENODEV; 57148104Syokota} 57248104Syokota 57348104Syokotaint genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 57448104Syokota caddr_t arg, int flag, struct proc *p) 57548104Syokota{ 57648104Syokota int error; 57748104Syokota 57848104Syokota if (adp == NULL) /* XXX */ 57948104Syokota return ENXIO; 58048104Syokota error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 58148104Syokota if (error == ENOIOCTL) 58248104Syokota error = ENODEV; 58348104Syokota return error; 58448104Syokota} 58548104Syokota 58648104Syokotaint genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 58748104Syokota int prot) 58848104Syokota{ 58948104Syokota return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 59048104Syokota} 59148104Syokota 59242421Syokota#endif /* FB_INSTALL_CDEV */ 59342421Syokota 59442421Syokotastatic char 59542421Syokota*adapter_name(int type) 59642421Syokota{ 59742421Syokota static struct { 59842421Syokota int type; 59942421Syokota char *name; 60042421Syokota } names[] = { 60142421Syokota { KD_MONO, "MDA" }, 60242421Syokota { KD_HERCULES, "Hercules" }, 60342421Syokota { KD_CGA, "CGA" }, 60442421Syokota { KD_EGA, "EGA" }, 60542421Syokota { KD_VGA, "VGA" }, 60642421Syokota { KD_PC98, "PC-98x1" }, 60748104Syokota { KD_TGA, "TGA" }, 60842421Syokota { -1, "Unknown" }, 60942421Syokota }; 61042421Syokota int i; 61142421Syokota 61242421Syokota for (i = 0; names[i].type != -1; ++i) 61342421Syokota if (names[i].type == type) 61442421Syokota break; 61542421Syokota return names[i].name; 61642421Syokota} 61742421Syokota 61848104Syokota/* 61948104Syokota * Generic low-level frame buffer functions 62048104Syokota * The low-level functions in the frame buffer subdriver may use these 62148104Syokota * functions. 62248104Syokota */ 62348104Syokota 62442421Syokotavoid 62542421Syokotafb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 62642421Syokota{ 62742421Syokota if (level <= 0) 62842421Syokota return; 62942421Syokota 63042421Syokota printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 63148104Syokota FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 63242421Syokota adapter_name(adp->va_type), adp->va_type, adp->va_flags); 63342421Syokota printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 63448104Syokota FB_DRIVER_NAME, adp->va_index, 63542421Syokota adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 63642421Syokota adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 63742421Syokota printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 63848104Syokota FB_DRIVER_NAME, adp->va_index, 63942421Syokota adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 64048104Syokota printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 64148104Syokota FB_DRIVER_NAME, adp->va_index, 64248104Syokota (void *)adp->va_window, (int)adp->va_window_size/1024, 64348104Syokota (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 64442831Syokota (int)adp->va_buffer_size/1024); 64542421Syokota} 64642421Syokota 64742421Syokotavoid 64842421Syokotafb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 64942421Syokota int level) 65042421Syokota{ 65142421Syokota if (level <= 0) 65242421Syokota return; 65342421Syokota 65442421Syokota printf("%s%d: %s, mode:%d, flags:0x%x ", 65542421Syokota driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 65642421Syokota if (info->vi_flags & V_INFO_GRAPHICS) 65742421Syokota printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 65842421Syokota info->vi_width, info->vi_height, 65942421Syokota info->vi_depth, info->vi_planes, 66042421Syokota info->vi_cwidth, info->vi_cheight); 66142421Syokota else 66242421Syokota printf("T %dx%d, font:%dx%d, ", 66342421Syokota info->vi_width, info->vi_height, 66442421Syokota info->vi_cwidth, info->vi_cheight); 66542421Syokota printf("win:0x%x\n", info->vi_window); 66642421Syokota} 66748104Syokota 66848104Syokotaint 66948104Syokotafb_type(int adp_type) 67048104Syokota{ 67148104Syokota static struct { 67248104Syokota int fb_type; 67348104Syokota int va_type; 67448104Syokota } types[] = { 67548104Syokota { FBTYPE_MDA, KD_MONO }, 67648104Syokota { FBTYPE_HERCULES, KD_HERCULES }, 67748104Syokota { FBTYPE_CGA, KD_CGA }, 67848104Syokota { FBTYPE_EGA, KD_EGA }, 67948104Syokota { FBTYPE_VGA, KD_VGA }, 68048104Syokota { FBTYPE_PC98, KD_PC98 }, 68148104Syokota { FBTYPE_TGA, KD_TGA }, 68248104Syokota }; 68348104Syokota int i; 68448104Syokota 68548104Syokota for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 68648104Syokota if (types[i].va_type == adp_type) 68748104Syokota return types[i].fb_type; 68848104Syokota } 68948104Syokota return -1; 69048104Syokota} 69148104Syokota 69248104Syokotaint 69348104Syokotafb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 69448104Syokota{ 69548104Syokota int error; 69648104Syokota int s; 69748104Syokota 69848104Syokota /* assert(adp != NULL) */ 69948104Syokota 70048104Syokota error = 0; 70148104Syokota s = spltty(); 70248104Syokota 70348104Syokota switch (cmd) { 70448104Syokota 70548104Syokota case FBIO_ADAPTER: /* get video adapter index */ 70648104Syokota *(int *)arg = adp->va_index; 70748104Syokota break; 70848104Syokota 70948104Syokota case FBIO_ADPTYPE: /* get video adapter type */ 71048104Syokota *(int *)arg = adp->va_type; 71148104Syokota break; 71248104Syokota 71348104Syokota case FBIO_ADPINFO: /* get video adapter info */ 71448104Syokota ((video_adapter_info_t *)arg)->va_index = adp->va_index; 71548104Syokota ((video_adapter_info_t *)arg)->va_type = adp->va_type; 71648104Syokota bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 71748104Syokota imin(strlen(adp->va_name) + 1, 71848104Syokota sizeof(((video_adapter_info_t *)arg)->va_name))); 71948104Syokota ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 72048104Syokota ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 72148104Syokota ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 72248104Syokota ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 72348104Syokota ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 72448104Syokota ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 72548104Syokota ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 72648104Syokota ((video_adapter_info_t *)arg)->va_window 72748104Syokota = vtophys(adp->va_window); 72848104Syokota ((video_adapter_info_t *)arg)->va_window_size 72948104Syokota = adp->va_window_size; 73048104Syokota ((video_adapter_info_t *)arg)->va_window_gran 73148104Syokota = adp->va_window_gran; 73248104Syokota ((video_adapter_info_t *)arg)->va_window_orig 73348104Syokota = adp->va_window_orig; 73448104Syokota ((video_adapter_info_t *)arg)->va_unused0 73548104Syokota = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 73648104Syokota ((video_adapter_info_t *)arg)->va_buffer_size 73748104Syokota = adp->va_buffer_size; 73848104Syokota ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 73948104Syokota ((video_adapter_info_t *)arg)->va_initial_mode 74048104Syokota = adp->va_initial_mode; 74148104Syokota ((video_adapter_info_t *)arg)->va_initial_bios_mode 74248104Syokota = adp->va_initial_bios_mode; 74348104Syokota ((video_adapter_info_t *)arg)->va_line_width 74448104Syokota = adp->va_line_width; 74548104Syokota ((video_adapter_info_t *)arg)->va_disp_start.x 74648104Syokota = adp->va_disp_start.x; 74748104Syokota ((video_adapter_info_t *)arg)->va_disp_start.y 74848104Syokota = adp->va_disp_start.y; 74948104Syokota break; 75048104Syokota 75148104Syokota case FBIO_MODEINFO: /* get mode information */ 75248104Syokota error = (*vidsw[adp->va_index]->get_info)(adp, 75348104Syokota ((video_info_t *)arg)->vi_mode, 75448104Syokota (video_info_t *)arg); 75548104Syokota if (error) 75648104Syokota error = ENODEV; 75748104Syokota break; 75848104Syokota 75948104Syokota case FBIO_FINDMODE: /* find a matching video mode */ 76048104Syokota error = (*vidsw[adp->va_index]->query_mode)(adp, 76148104Syokota (video_info_t *)arg); 76248104Syokota if (error < 0) { 76348104Syokota error = EINVAL; 76448104Syokota } else { 76548104Syokota error = (*vidsw[adp->va_index]->get_info)(adp, 76648104Syokota error, (video_info_t *)arg); 76748104Syokota if (error) 76848104Syokota error = ENODEV; /* shouldn't happen */ 76948104Syokota } 77048104Syokota break; 77148104Syokota 77248104Syokota case FBIO_GETMODE: /* get video mode */ 77348104Syokota *(int *)arg = adp->va_mode; 77448104Syokota break; 77548104Syokota 77648104Syokota case FBIO_SETMODE: /* set video mode */ 77748104Syokota error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 77848104Syokota if (error) 77948104Syokota error = ENODEV; /* EINVAL? */ 78048104Syokota break; 78148104Syokota 78248104Syokota case FBIO_GETWINORG: /* get frame buffer window origin */ 78348104Syokota *(u_int *)arg = adp->va_window_orig; 78448104Syokota break; 78548104Syokota 78648104Syokota case FBIO_GETDISPSTART: /* get display start address */ 78748104Syokota ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 78848104Syokota ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 78948104Syokota break; 79048104Syokota 79148104Syokota case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 79248104Syokota *(u_int *)arg = adp->va_line_width; 79348104Syokota break; 79448104Syokota 79548104Syokota case FBIO_GETPALETTE: /* get color palette */ 79648104Syokota case FBIO_SETPALETTE: /* set color palette */ 79748104Syokota /* XXX */ 79848104Syokota 79948104Syokota case FBIOPUTCMAP: 80048104Syokota case FBIOGETCMAP: 80148104Syokota /* XXX */ 80248104Syokota 80348104Syokota case FBIO_SETWINORG: /* set frame buffer window origin */ 80448104Syokota case FBIO_SETDISPSTART: /* set display start address */ 80548104Syokota case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 80648104Syokota 80748104Syokota case FBIOGTYPE: 80848104Syokota case FBIOGATTR: 80948104Syokota case FBIOSVIDEO: 81048104Syokota case FBIOGVIDEO: 81148104Syokota case FBIOSCURSOR: 81248104Syokota case FBIOGCURSOR: 81348104Syokota case FBIOSCURPOS: 81448104Syokota case FBIOGCURPOS: 81548104Syokota case FBIOGCURMAX: 81648104Syokota 81748104Syokota default: 81848104Syokota error = ENODEV; 81948104Syokota break; 82048104Syokota } 82148104Syokota 82248104Syokota splx(s); 82348104Syokota return error; 82448104Syokota} 825